Dump alive tasks every 30s in server and agent

Route the dump through GLib.info() using the new
g_task_describe_alive_tasks(), so the agent's dump reaches
logcat where its stdio is not visible. Bump the GLib wrap to
the branch holding that function.

.github/workflows/ci.yml

@@ -20,8 +20,8 @@ jobs:
     strategy:
       matrix:
         include:
-          - { id: windows-arm64,  runner: '"windows-11-arm"', sys: CLANGARM64, pkg: 'mingw-w64-clang-aarch64-clang', opts: "'-Dfrida-gum:v8=disabled'" }
-          - { id: windows-x86_64, runner: '"windows-latest"', sys: UCRT64,     pkg: 'mingw-w64-ucrt-x86_64-gcc'     }
+          - { id: windows-arm64,  runner: '"windows-11-arm"', sys: CLANGARM64, pkg: 'mingw-w64-clang-aarch64-clang' }
+          - { id: windows-x86_64, runner: '"windows-latest"', sys: MINGW64,    pkg: 'mingw-w64-x86_64-gcc'          }
           - { id: windows-x86,    runner: '"windows-latest"', sys: MINGW32,    pkg: 'mingw-w64-i686-gcc'            }
           - { id: macos-x86_64,   runner: '"macos-latest"'                                                          }
           - { id: macos-arm64,    runner: '"macos-latest"'                                                          }
@@ -71,7 +71,7 @@ jobs:
               --host=${{ matrix.id }} `
               --enable-compiler-backend `
               ${{ env.FRIDA_CORE_OPTIONS }} `
-              -- --force-fallback-for=openssl ${{ matrix.opts }}
+              -- --force-fallback-for=openssl
           .\make
         env:
           MSYS2_LOCATION: ${{ steps.msys2.outputs.msys2-location }}
@@ -658,7 +658,7 @@ jobs:
       matrix:
         include:
           - { arch: x86_64, runner: windows-latest, msvc-arch: amd64, vcpkg-triplet: x64-windows-release }
-          - { arch: arm64, runner: windows-11-arm, msvc-arch: arm64, vcpkg-triplet: arm64-windows-release, opts: "'-Dfrida-gum:v8=disabled'" }
+          - { arch: arm64, runner: windows-11-arm, msvc-arch: arm64, vcpkg-triplet: arm64-windows-release }
       fail-fast: false
     runs-on: ${{ matrix.runner }}
     timeout-minutes: 120
@@ -668,17 +668,9 @@ jobs:
         with:
           submodules: recursive
 
-      - name: Set up MSVC environment
-        run: |
-          $vs = & "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe" -products * -latest -property installationPath
-          $before = @{}
-          Get-ChildItem env: | ForEach-Object { $before[$_.Name] = $_.Value }
-          cmd /c "`"$vs\VC\Auxiliary\Build\vcvarsall.bat`" ${{ matrix.msvc-arch }} >nul && set" | ForEach-Object {
-            $name, $value = $_ -split '=', 2
-            if ($before[$name] -ne $value) {
-              "$name=$value" >> $env:GITHUB_ENV
-            }
-          }
+      - uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: ${{ matrix.msvc-arch }}
 
       - uses: actions/setup-python@v6
         with:
@@ -729,7 +721,7 @@ jobs:
               --enable-shared `
               --without-prebuilds=sdk `
               "--prefix=$env:RUNNER_TEMP\frida-prefix" `
-              -- --force-fallback-for=openssl,libnghttp2 -Dcompiler_backend=disabled -Dtests=disabled ${{ matrix.opts }}
+              -- --force-fallback-for=openssl,libnghttp2 -Dcompiler_backend=disabled -Dtests=disabled
 
       - name: Compile
         run: python releng/meson/meson.py compile -C build

.gitignore

@@ -2,15 +2,7 @@
 /build/
 /deps/
 /src/android-helper/build/
-/src/barebone/agent/linux/*.ko
-/src/barebone/agent/linux/*.mod
-/src/barebone/agent/linux/*.mod.c
-/src/barebone/agent/linux/*.o
-/src/barebone/agent/linux/*.o.bin
-/src/barebone/agent/linux/.*.cmd
-/src/barebone/agent/linux/Module.symvers
-/src/barebone/agent/linux/modules.order
-/src/barebone/agent/target*/
+/src/barebone/agent/target/
 /src/barebone/agent/xpacks/
 /src/barebone/helpers/memory-scanner/target/
 /src/barebone/helpers/target/

Makefile

@@ -1,4 +1,4 @@
-PYTHON ?= $(shell command -v python3 >/dev/null && echo python3 || echo python)
+PYTHON ?= $(shell which python3 >/dev/null && echo python3 || echo python)
 
 all $(MAKECMDGOALS):
 	@$(PYTHON) \
@@ -8,7 +8,7 @@ all $(MAKECMDGOALS):
 		$(MAKECMDGOALS)
 
 git-submodules:
-	@if [ ! -f releng/meson/meson.py ] || git submodule status 2>/dev/null | grep -q '^-'; then \
+	@if [ ! -f releng/meson/meson.py ]; then \
 		git submodule update --init --recursive --depth 1; \
 	fi
 -include git-submodules

compat/build.py

@@ -19,7 +19,7 @@ import traceback
 from typing import Any, Literal, Mapping, Optional, Sequence, Tuple
 
 
-REPO_ROOT = Path(__file__).absolute().parent.parent
+REPO_ROOT = Path(__file__).resolve().parent.parent
 NINJA = os.environ.get("NINJA", "ninja")
 
 
@@ -592,10 +592,8 @@ def load_meson_options(top_builddir: Path,
                        subprojects: set[str]) -> Sequence[str]:
     from mesonbuild import coredata
 
-    optstore = coredata.load(top_builddir).optstore
-
-    return [f"-D{adapt_key(k, role)}={v.value}" for k, v in optstore.options.items()
-            if option_should_be_forwarded(k, v, optstore, role, subprojects)]
+    return [f"-D{adapt_key(k, role)}={v.value}" for k, v in coredata.load(top_builddir).options.items()
+            if option_should_be_forwarded(k, v, role, subprojects)]
 
 
 def adapt_key(k: "OptionKey", role: Role) -> "OptionKey":
@@ -605,46 +603,44 @@ def adapt_key(k: "OptionKey", role: Role) -> "OptionKey":
 
 
 def option_should_be_forwarded(k: "OptionKey",
-                               v: "options.UserOption[Any]",
-                               optstore: "options.OptionStore",
+                               v: "coredata.UserOption[Any]",
                                role: Role,
                                subprojects: set[str]) -> bool:
-    from mesonbuild import options
-    from mesonbuild.mesonlib import MachineChoice
+    from mesonbuild import coredata
 
     our_project_id = "frida-core" if role == "subproject" else ""
     is_for_us = k.subproject == our_project_id
     is_for_child = k.subproject in subprojects
 
-    if optstore.is_project_option(k):
+    if k.is_project():
         if is_for_us:
             if k.name == "compiler_backend":
                 return False
             tokens = k.name.split("_")
             if tokens[0] in {"helper", "agent"} and tokens[-1] in {"modern", "legacy"}:
                 return False
-        if k.subproject and k.machine is not MachineChoice.HOST:
+        if k.subproject and k.machine is not coredata.MachineChoice.HOST:
             return False
         return is_for_us or is_for_child
 
-    if optstore.is_per_machine_option(k):
+    if coredata.CoreData.is_per_machine_option(k):
         # The compat build generates its own machine files, so forwarding the
         # parent's build-machine options would inject a foreign toolchain. In a
         # native compat build that conjures a compiler-less build machine and
         # breaks any native: true target.
         return False
 
-    if optstore.is_builtin_option(k):
+    if k.is_builtin():
         if k.name in {"buildtype", "genvslite"}:
             return False
         if not str(v.value):
             return False
         if not is_for_child and role == "subproject" and k.subproject in {"", our_project_id}:
-            if not options.BUILTIN_OPTIONS[k.evolve(subproject=None, machine=MachineChoice.HOST)].yielding:
+            if not coredata.BUILTIN_OPTIONS[k.as_root()].yielding:
                 return k.subproject == our_project_id
             return True
 
-    if k.get_module_prefix() == "python":
+    if k.module == "python":
         if k.name == "install_env" and v.value == "prefix":
             return False
         if not str(v.value):

configure

@@ -1,12 +1,12 @@
 #!/bin/sh
 
-[ -z "$PYTHON" ] && PYTHON=$(command -v python3 >/dev/null && echo python3 || echo python)
+[ -z "$PYTHON" ] && PYTHON=$(which python3 >/dev/null && echo python3 || echo python)
 
 cd $(dirname $0)
 
 srcroot=$(pwd)
 
-if [ ! -f releng/meson/meson.py ] || git submodule status 2>/dev/null | grep -q '^-'; then
+if [ ! -f releng/meson/meson.py ]; then
   git submodule update --init --recursive --depth 1 || exit $?
 fi
 

lib/agent/agent-glue.c

@@ -13,44 +13,6 @@
 # include <gioapple.h>
 #elif defined (HAVE_GIOOPENSSL)
 # include <gioopenssl.h>
-#endif
-#ifdef HAVE_PROSPERO
-# include "frida-prospero.h"
-# include <unistd.h>
-#endif
-
-#ifdef HAVE_PROSPERO
-
-FridaProsperoAgentArgs frida_prospero_agent_args = { .fifo_fd = -1 };
-
-int
-main (int argc, char * argv[], char * envp[])
-{
-  FridaProsperoAgentArgs * args = &frida_prospero_agent_args;
-  FridaProsperoInjectorState injector_state;
-  guint8 hello_byte = FRIDA_PROSPERO_HELLO_BYTE;
-  FridaUnloadPolicy unload_policy = FRIDA_UNLOAD_POLICY_IMMEDIATE;
-  guint8 policy_byte;
-  guint32 worker_id;
-
-  injector_state.fifo_fd = args->fifo_fd;
-  injector_state.agent_ctrlfd = args->agent_ctrlfd;
-  injector_state.mapped_range = &args->mapped_range;
-
-  write (injector_state.fifo_fd, &hello_byte, sizeof (hello_byte));
-
-  frida_agent_main (GSIZE_TO_POINTER (args->agent_parameters), &unload_policy, &injector_state);
-
-  policy_byte = unload_policy;
-  worker_id = gum_process_get_current_thread_id ();
-
-  write (injector_state.fifo_fd, &policy_byte, sizeof (policy_byte));
-  write (injector_state.fifo_fd, &worker_id, sizeof (worker_id));
-  close (injector_state.fifo_fd);
-
-  return 0;
-}
-
 #endif
 
 void

lib/agent/agent.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida.Agent {
 	public void main (string agent_parameters, ref Frida.UnloadPolicy unload_policy, void * injector_state) {
 		if (Runner.shared_instance == null)
@@ -80,7 +78,6 @@ namespace Frida.Agent {
 		private ExitMonitor? exit_monitor;
 		private Gum.Interceptor interceptor;
 		private Gum.Exceptor? exceptor;
-		private bool code_memory_delegated = false;
 
 		private uint child_gating_subscriber_count = 0;
 		private ForkMonitor? fork_monitor;
@@ -125,43 +122,12 @@ namespace Frida.Agent {
 			{
 				Gum.MemoryRange? mapped_range = null;
 
-#if WINDOWS
-				var windows_state = (WindowsInjectorState *) opaque_injector_state;
-				if (windows_state != null) {
-					if (windows_state.mapped_range.size != 0)
-						mapped_range = windows_state.mapped_range;
-					Gum.Cloak.add_range (windows_state.worker_range);
-					if (windows_state.dbghelp_range.size != 0) {
-						Gum.Cloak.add_range (windows_state.dbghelp_range);
-						Gum.Cloak.add_range (windows_state.symsrv_range);
-						Gum.Windows.use_dbghelp_modules ((void *) windows_state.dbghelp_range.base_address,
-							(void *) windows_state.symsrv_range.base_address);
-					}
-				}
-#endif
-
 #if DARWIN
 				var injector_state = (DarwinInjectorState *) opaque_injector_state;
 				if (injector_state != null)
 					mapped_range = injector_state.mapped_range;
 #endif
 
-#if LINUX
-				var linux_state = (LinuxInjectorState *) opaque_injector_state;
-				if (linux_state != null && linux_state.mapped_size != 0) {
-					mapped_range = Gum.MemoryRange () {
-						base_address = linux_state.mapped_base,
-						size = linux_state.mapped_size,
-					};
-				}
-#endif
-
-#if PROSPERO
-				var prospero_state = (ProsperoInjectorState *) opaque_injector_state;
-				if (prospero_state != null)
-					mapped_range = prospero_state.mapped_range;
-#endif
-
 				if (cached_agent_path == null) {
 					cached_agent_range = detect_own_range_and_path (mapped_range, out cached_agent_path);
 					Gum.Cloak.add_range (cached_agent_range);
@@ -191,19 +157,6 @@ namespace Frida.Agent {
 				}
 #endif
 
-#if PROSPERO
-				string? agent_parameters_with_transport_uri = null;
-				if (prospero_state != null) {
-					int agent_ctrlfd = prospero_state.agent_ctrlfd;
-					prospero_state.agent_ctrlfd = -1;
-
-					fdt_padder.move_descriptor_if_needed (ref agent_ctrlfd);
-
-					agent_parameters_with_transport_uri = "socket:%d%s".printf (agent_ctrlfd, agent_parameters);
-					agent_parameters = agent_parameters_with_transport_uri;
-				}
-#endif
-
 				var ignore_scope = new ThreadIgnoreScope (FRIDA_THREAD);
 
 				shared_instance = new Runner (agent_parameters, cached_agent_path, cached_agent_range);
@@ -227,15 +180,6 @@ namespace Frida.Agent {
 					return;
 				} else {
 					release_shared_instance ();
-#if WINDOWS
-					if (windows_state != null) {
-						Gum.Cloak.remove_range (windows_state.worker_range);
-						if (windows_state.dbghelp_range.size != 0) {
-							Gum.Cloak.remove_range (windows_state.dbghelp_range);
-							Gum.Cloak.remove_range (windows_state.symsrv_range);
-						}
-					}
-#endif
 				}
 
 				ignore_scope = null;
@@ -322,12 +266,25 @@ namespace Frida.Agent {
 		}
 
 		~Runner () {
-			remove_instrumentation ();
+			var interceptor = this.interceptor;
+			interceptor.begin_transaction ();
 
-			if (code_memory_delegated)
-				Gum.Memory.set_hooks (null);
+			disable_child_gating ();
+
+			exceptor = null;
+
+			exit_monitor = null;
+
+			interceptor.end_transaction ();
+
+			interceptor.begin_transaction ();
+
+			thread_suspend_monitor = null;
+			unwind_sitter = null;
 
 			invalidate_dbus_context ();
+
+			interceptor.end_transaction ();
 		}
 
 		private void run (owned FileDescriptorTablePadder padder) throws Error {
@@ -335,6 +292,8 @@ namespace Frida.Agent {
 
 			start.begin ((owned) padder);
 
+			start_alive_task_dumper ();
+
 			main_loop.run ();
 
 			main_context.pop_thread_default ();
@@ -370,7 +329,24 @@ namespace Frida.Agent {
 			if (exceptor_mode != FULL)
 				Gum.Exceptor.set_mode (exceptor_mode);
 
-			interceptor = Gum.Interceptor.obtain ();
+			{
+				var interceptor = Gum.Interceptor.obtain ();
+				interceptor.begin_transaction ();
+
+				if (enable_exit_monitor)
+					exit_monitor = new ExitMonitor (this, main_context);
+
+				if (enable_thread_suspend_monitor)
+					thread_suspend_monitor = new ThreadSuspendMonitor (this);
+
+				if (enable_unwind_broker)
+					unwind_sitter = new UnwindSitter (this);
+
+				this.interceptor = interceptor;
+				this.exceptor = Gum.Exceptor.obtain ();
+
+				interceptor.end_transaction ();
+			}
 
 			try {
 				yield setup_connection_with_transport_uri (transport_uri);
@@ -380,24 +356,6 @@ namespace Frida.Agent {
 				return;
 			}
 
-			if (!can_allocate_code ())
-				delegate_code_memory_to_controller ();
-
-			interceptor.begin_transaction ();
-
-			if (enable_exit_monitor)
-				exit_monitor = new ExitMonitor (this, main_context);
-
-			if (enable_thread_suspend_monitor)
-				thread_suspend_monitor = new ThreadSuspendMonitor (this);
-
-			if (enable_unwind_broker)
-				unwind_sitter = new UnwindSitter (this);
-
-			exceptor = Gum.Exceptor.obtain ();
-
-			interceptor.end_transaction ();
-
 			Gum.ScriptBackend.get_scheduler ().push_job_on_js_thread (Priority.DEFAULT, () => {
 				schedule_idle (start.callback);
 			});
@@ -406,58 +364,14 @@ namespace Frida.Agent {
 			padder = null;
 		}
 
-		private static bool can_allocate_code () {
-			size_t page_size = Gum.query_page_size ();
-
-			void * page = Gum.Memory.allocate (null, page_size, page_size, READ | EXECUTE);
-			if (page == null)
-				return false;
-
-			Gum.Memory.free (page, page_size);
-
-			return true;
-		}
-
-		private void delegate_code_memory_to_controller () {
-			var hooks = Gum.MemoryHooks () {
-				allocate = allocate_via_controller,
-				protect = protect_via_controller,
-				user_data = this,
-			};
-			Gum.Memory.set_hooks (hooks);
-
-			code_memory_delegated = true;
-		}
-
-		private static void * allocate_via_controller (Gum.AddressSpec? spec, size_t size, size_t alignment,
-				Gum.PageProtection prot, void * user_data) {
-			unowned Runner self = (Runner) user_data;
-
-			uint64 near_address = 0;
-			uint64 max_distance = 0;
-			if (spec != null) {
-				near_address = (uint64) spec.near_address;
-				max_distance = spec.max_distance;
-			}
-
-			try {
-				return (void *) self.controller.allocate_memory (get_process_id (), near_address, max_distance, size,
-					alignment, prot, null);
-			} catch (GLib.Error e) {
-				return null;
-			}
-		}
-
-		private static bool protect_via_controller (void * address, size_t size, Gum.PageProtection prot,
-				void * user_data) {
-			unowned Runner self = (Runner) user_data;
-
-			try {
-				self.controller.protect_memory (get_process_id (), (uint64) address, size, prot, null);
-				return true;
-			} catch (GLib.Error e) {
-				return false;
-			}
+		// TEMPORARY DEBUG HACK: dump alive GTasks every 30 seconds.
+		private void start_alive_task_dumper () {
+			var source = new TimeoutSource.seconds (30);
+			source.set_callback (() => {
+				GLib.info ("%s", g_task_describe_alive_tasks ());
+				return Source.CONTINUE;
+			});
+			source.attach (main_context);
 		}
 
 		private void keep_running_eternalized () {
@@ -1022,6 +936,8 @@ namespace Frida.Agent {
 		private void on_session_closed (BaseAgentSession base_session) {
 			LiveAgentSession session = (LiveAgentSession) base_session;
 
+			GLib.info ("detach-trace: Agent emitting provider closed id=%s", session.id.handle);
+
 			closed (session.id);
 
 			unregister_session (session);
@@ -1121,10 +1037,6 @@ namespace Frida.Agent {
 			if (unloading)
 				throw new Error.INVALID_OPERATION ("Agent is already unloading");
 			unloading = true;
-
-			if (code_memory_delegated && !is_eternal)
-				yield remove_instrumentation_while_delegated ();
-
 			perform_unload.begin ();
 		}
 
@@ -1170,32 +1082,6 @@ namespace Frida.Agent {
 			}
 		}
 
-		private async void remove_instrumentation_while_delegated () {
-			yield close_all_sessions ();
-
-			remove_instrumentation ();
-		}
-
-		private void remove_instrumentation () {
-			var interceptor = this.interceptor;
-			interceptor.begin_transaction ();
-
-			disable_child_gating ();
-
-			exceptor = null;
-
-			exit_monitor = null;
-
-			interceptor.end_transaction ();
-
-			interceptor.begin_transaction ();
-
-			thread_suspend_monitor = null;
-			unwind_sitter = null;
-
-			interceptor.end_transaction ();
-		}
-
 		private void ensure_eternalized () {
 			if (!_is_eternal) {
 				_is_eternal = true;
@@ -1404,7 +1290,7 @@ namespace Frida.Agent {
 
 		private void on_connection_closed (DBusConnection connection, bool remote_peer_vanished, GLib.Error? error) {
 			bool closed_by_us = !remote_peer_vanished && error == null;
-			if (!closed_by_us && !code_memory_delegated)
+			if (!closed_by_us)
 				unload.begin (null);
 
 			Promise<bool> operation = null;
@@ -1852,4 +1738,8 @@ namespace Frida.Agent {
 			return repeat;
 		});
 	}
+
+	// TEMPORARY DEBUG HACK: only present when GLib is built with G_ENABLE_DEBUG.
+	[CCode (cname = "g_task_describe_alive_tasks")]
+	private extern string g_task_describe_alive_tasks ();
 }

lib/agent/frida-agent-prospero.version

@@ -1,8 +0,0 @@
-{
-  global:
-    frida_agent_main;
-    frida_prospero_agent_args;
-
-  local:
-    *;
-};

lib/agent/meson.build

@@ -25,9 +25,6 @@ if build_agent
   if host_os_family != 'windows'
     extra_vala_args += '--pkg=posix'
   endif
-  if host_os_family == 'windows'
-    extra_vala_args += '--pkg=frida-gum-windows-1.0'
-  endif
   if host_os_family == 'darwin'
     extra_vala_args += '--pkg=frida-gum-darwin-1.0'
   endif
@@ -45,8 +42,6 @@ if build_agent
       symscript = 'frida-agent-glibc.version'
     elif host_os == 'android'
       symscript = 'frida-agent-android.version'
-    elif host_is_prospero
-      symscript = 'frida-agent-prospero.version'
     else
       symscript = 'frida-agent.version'
     endif
@@ -59,8 +54,6 @@ if build_agent
     extra_link_args += '-Wl,-Bsymbolic'
   endif
 
-  extra_link_args += prospero_crt_link_args
-
   raw_agent = shared_library('frida-agent-raw', agent_sources,
     name_prefix: 'lib',
     c_args: frida_component_cflags,
@@ -96,6 +89,8 @@ if build_agent
     install: assets_mode == 'installed' and not need_universal_agent,
     install_dir: asset_dir,
   )
+
+  agent_dep = declare_dependency(link_with: agent)
 endif
 
 if need_universal_agent

lib/base/buffer-glue.c

@@ -0,0 +1,12 @@
+#include "frida-base.h"
+
+GBytes *
+frida_make_bytes_with_owner (GType t_type,
+                             GBoxedCopyFunc t_dup_func,
+                             GDestroyNotify t_destroy_func,
+                             void * data,
+                             gsize size,
+                             gpointer owner)
+{
+  return g_bytes_new_with_free_func (data, size, t_destroy_func, owner);
+}

lib/base/buffer.vala

@@ -0,0 +1,797 @@
+namespace Frida {
+	public sealed class BufferBuilder : Object {
+		public ByteOrder byte_order {
+			get;
+			construct;
+		}
+
+		public uint pointer_size {
+			get;
+			construct;
+		}
+
+		public size_t offset {
+			get {
+				return cursor;
+			}
+		}
+
+		private ByteArray buffer = new ByteArray ();
+		private size_t cursor = 0;
+
+		private uint64 base_address = 0;
+		private Gee.List<LabelRef>? label_refs;
+		private Gee.Map<string, uint>? label_defs;
+
+		public BufferBuilder (ByteOrder byte_order = HOST, uint pointer_size = (uint) sizeof (size_t)) {
+			Object (
+				byte_order: byte_order,
+				pointer_size: pointer_size
+			);
+		}
+
+		public unowned BufferBuilder seek (size_t offset) {
+			if (buffer.len < offset) {
+				size_t n = offset - buffer.len;
+				Memory.set (get_pointer (offset - n, n), 0, n);
+			}
+			cursor = offset;
+			return this;
+		}
+
+		public unowned BufferBuilder skip (size_t n) {
+			seek (cursor + n);
+			return this;
+		}
+
+		public unowned BufferBuilder align (size_t n) {
+			size_t remainder = cursor % n;
+			if (remainder != 0)
+				skip (n - remainder);
+			return this;
+		}
+
+		public unowned BufferBuilder append_pointer (uint64 val) {
+			write_pointer (cursor, val);
+			cursor += pointer_size;
+			return this;
+		}
+
+		public unowned BufferBuilder append_pointer_to_label (string name) {
+			if (label_refs == null)
+				label_refs = new Gee.ArrayList<LabelRef> ();
+			label_refs.add (new LabelRef (name, cursor));
+			return skip (pointer_size);
+		}
+
+		public unowned BufferBuilder append_pointer_to_label_if (bool present, string name) {
+			if (present)
+				append_pointer_to_label (name);
+			else
+				append_pointer (0);
+			return this;
+		}
+
+		public unowned BufferBuilder append_label (string name) throws Error {
+			if (label_defs == null)
+				label_defs = new Gee.HashMap<string, uint> ();
+			if (label_defs.has_key (name))
+				throw new Error.INVALID_ARGUMENT ("Label '%s' already exists", name);
+			label_defs[name] = (uint) cursor;
+			return this;
+		}
+
+		public unowned BufferBuilder append_size (uint64 val) {
+			return append_pointer (val);
+		}
+
+		public unowned BufferBuilder append_int8 (int8 val) {
+			write_int8 (cursor, val);
+			cursor += (uint) sizeof (int8);
+			return this;
+		}
+
+		public unowned BufferBuilder append_uint8 (uint8 val) {
+			write_uint8 (cursor, val);
+			cursor += (uint) sizeof (uint8);
+			return this;
+		}
+
+		public unowned BufferBuilder append_int16 (int16 val) {
+			write_int16 (cursor, val);
+			cursor += (uint) sizeof (int16);
+			return this;
+		}
+
+		public unowned BufferBuilder append_uint16 (uint16 val) {
+			write_uint16 (cursor, val);
+			cursor += (uint) sizeof (uint16);
+			return this;
+		}
+
+		public unowned BufferBuilder append_int32 (int32 val) {
+			write_int32 (cursor, val);
+			cursor += (uint) sizeof (int32);
+			return this;
+		}
+
+		public unowned BufferBuilder append_uint32 (uint32 val) {
+			write_uint32 (cursor, val);
+			cursor += (uint) sizeof (uint32);
+			return this;
+		}
+
+		public unowned BufferBuilder append_int64 (int64 val) {
+			write_int64 (cursor, val);
+			cursor += (uint) sizeof (int64);
+			return this;
+		}
+
+		public unowned BufferBuilder append_uint64 (uint64 val) {
+			write_uint64 (cursor, val);
+			cursor += (uint) sizeof (uint64);
+			return this;
+		}
+
+		public unowned BufferBuilder append_float (float val) {
+			write_float (cursor, val);
+			cursor += (uint) sizeof (float);
+			return this;
+		}
+
+		public unowned BufferBuilder append_double (double val) {
+			write_double (cursor, val);
+			cursor += (uint) sizeof (double);
+			return this;
+		}
+
+		public unowned BufferBuilder append_string (string val, StringTerminator terminator = NUL) {
+			uint size = val.length;
+			if (terminator == NUL)
+				size++;
+			Memory.copy (get_pointer (cursor, size), val, size);
+			cursor += size;
+			return this;
+		}
+
+		public unowned BufferBuilder append_bytes (Bytes bytes) {
+			return append_data (bytes.get_data ());
+		}
+
+		public unowned BufferBuilder append_data (uint8[] data) {
+			write_data (cursor, data);
+			cursor += data.length;
+			return this;
+		}
+
+		public unowned BufferBuilder write_pointer (size_t offset, uint64 val) {
+			if (pointer_size == 4)
+				write_uint32 (offset, (uint32) val);
+			else
+				write_uint64 (offset, val);
+			return this;
+		}
+
+		public unowned BufferBuilder write_size (size_t offset, uint64 val) {
+			return write_pointer (offset, val);
+		}
+
+		public unowned BufferBuilder write_int8 (size_t offset, int8 val) {
+			*((int8 *) get_pointer (offset, sizeof (int8))) = val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_uint8 (size_t offset, uint8 val) {
+			*get_pointer (offset, sizeof (uint8)) = val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_int16 (size_t offset, int16 val) {
+			int16 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int16 *) get_pointer (offset, sizeof (int16))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_uint16 (size_t offset, uint16 val) {
+			uint16 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint16 *) get_pointer (offset, sizeof (uint16))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_int32 (size_t offset, int32 val) {
+			int32 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int32 *) get_pointer (offset, sizeof (int32))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_uint32 (size_t offset, uint32 val) {
+			uint32 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint32 *) get_pointer (offset, sizeof (uint32))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_int64 (size_t offset, int64 val) {
+			int64 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int64 *) get_pointer (offset, sizeof (int64))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_uint64 (size_t offset, uint64 val) {
+			uint64 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint64 *) get_pointer (offset, sizeof (uint64))) = target_val;
+			return this;
+		}
+
+		public unowned BufferBuilder write_float (size_t offset, float val) {
+			return write_uint32 (offset, *((uint32 *) &val));
+		}
+
+		public unowned BufferBuilder write_double (size_t offset, double val) {
+			return write_uint64 (offset, *((uint64 *) &val));
+		}
+
+		public unowned BufferBuilder write_string (size_t offset, string val) {
+			uint size = val.length + 1;
+			Memory.copy (get_pointer (offset, size), val, size);
+			return this;
+		}
+
+		public unowned BufferBuilder write_bytes (size_t offset, Bytes bytes) {
+			return write_data (offset, bytes.get_data ());
+		}
+
+		public unowned BufferBuilder write_data (size_t offset, uint8[] data) {
+			Memory.copy (get_pointer (offset, data.length), data, data.length);
+			return this;
+		}
+
+		private uint8 * get_pointer (size_t offset, size_t n) {
+			size_t minimum_size = offset + n;
+			if (buffer.len < minimum_size)
+				buffer.set_size ((uint) minimum_size);
+
+			return (uint8 *) buffer.data + offset;
+		}
+
+		public Bytes try_build (uint64 base_address = 0) throws Error {
+			this.base_address = base_address;
+
+			if (label_refs != null) {
+				foreach (LabelRef r in label_refs)
+					write_pointer (r.offset, address_of (r.name));
+			}
+
+			return ByteArray.free_to_bytes ((owned) buffer);
+		}
+
+		public Bytes build (uint64 base_address = 0) {
+			try {
+				return try_build (base_address);
+			} catch (Error e) {
+				assert_not_reached ();
+			}
+		}
+
+		public uint64 address_of (string label) throws Error {
+			if (label_defs == null || !label_defs.has_key (label))
+				throw new Error.INVALID_OPERATION ("Label '%s' not defined", label);
+			size_t offset = label_defs[label];
+			return base_address + offset;
+		}
+
+		private class LabelRef {
+			public string name;
+			public size_t offset;
+
+			public LabelRef (string name, size_t offset) {
+				this.name = name;
+				this.offset = offset;
+			}
+		}
+	}
+
+	public enum StringTerminator {
+		NONE,
+		NUL
+	}
+
+	public sealed class Buffer : Object {
+		public Bytes bytes {
+			get {
+				if (_bytes == null)
+					_bytes = new Bytes.static (_data);
+				return _bytes;
+			}
+		}
+
+		public size_t size {
+			get {
+				return _data.length;
+			}
+		}
+
+		public ByteOrder byte_order {
+			get;
+			construct;
+		}
+
+		public uint pointer_size {
+			get;
+			construct;
+		}
+
+		private Bytes? _bytes;
+		private unowned uint8[] _data;
+
+		public Buffer (Bytes bytes, ByteOrder byte_order = HOST, uint pointer_size = (uint) sizeof (size_t)) {
+			Object (
+				byte_order: byte_order,
+				pointer_size: pointer_size
+			);
+
+			reset_bytes (bytes);
+		}
+
+		public Buffer.from_data (uint8[] data, ByteOrder byte_order = HOST, uint pointer_size = (uint) sizeof (size_t)) {
+			Object (
+				byte_order: byte_order,
+				pointer_size: pointer_size
+			);
+
+			reset_data (data);
+		}
+
+		public void reset_bytes (Bytes bytes) {
+			_bytes = bytes;
+			_data = bytes.get_data ();
+		}
+
+		public void reset_data (uint8[] data) {
+			_bytes = null;
+			_data = data;
+		}
+
+		public unowned uint8[] peek_data () {
+			return _data;
+		}
+
+		public uint64 read_pointer (size_t offset) {
+			return (pointer_size == 4)
+				? read_uint32 (offset)
+				: read_uint64 (offset);
+		}
+
+		public void write_pointer (size_t offset, uint64 val) {
+			if (pointer_size == 4)
+				write_uint32 (offset, (uint32) val);
+			else
+				write_uint64 (offset, val);
+		}
+
+		public int8 read_int8 (size_t offset) {
+			return *((int8 *) get_pointer (offset, sizeof (int8)));
+		}
+
+		public unowned Buffer write_int8 (size_t offset, int8 val) {
+			*((int8 *) get_pointer (offset, sizeof (int8))) = val;
+			return this;
+		}
+
+		public uint8 read_uint8 (size_t offset) {
+			return *get_pointer (offset, sizeof (uint8));
+		}
+
+		public unowned Buffer write_uint8 (size_t offset, uint8 val) {
+			*((uint8 *) get_pointer (offset, sizeof (uint8))) = val;
+			return this;
+		}
+
+		public int16 read_int16 (size_t offset) {
+			int16 val = *((int16 *) get_pointer (offset, sizeof (int16)));
+			return (byte_order == BIG_ENDIAN)
+				? int16.from_big_endian (val)
+				: int16.from_little_endian (val);
+		}
+
+		public unowned Buffer write_int16 (size_t offset, int16 val) {
+			int16 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int16 *) get_pointer (offset, sizeof (int16))) = target_val;
+			return this;
+		}
+
+		public uint16 read_uint16 (size_t offset) {
+			uint16 val = *((uint16 *) get_pointer (offset, sizeof (uint16)));
+			return (byte_order == BIG_ENDIAN)
+				? uint16.from_big_endian (val)
+				: uint16.from_little_endian (val);
+		}
+
+		public unowned Buffer write_uint16 (size_t offset, uint16 val) {
+			uint16 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint16 *) get_pointer (offset, sizeof (uint16))) = target_val;
+			return this;
+		}
+
+		public int32 read_int32 (size_t offset) {
+			int32 val = *((int32 *) get_pointer (offset, sizeof (int32)));
+			return (byte_order == BIG_ENDIAN)
+				? int32.from_big_endian (val)
+				: int32.from_little_endian (val);
+		}
+
+		public unowned Buffer write_int32 (size_t offset, int32 val) {
+			int32 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int32 *) get_pointer (offset, sizeof (int32))) = target_val;
+			return this;
+		}
+
+		public uint32 read_uint32 (size_t offset) {
+			uint32 val = *((uint32 *) get_pointer (offset, sizeof (uint32)));
+			return (byte_order == BIG_ENDIAN)
+				? uint32.from_big_endian (val)
+				: uint32.from_little_endian (val);
+		}
+
+		public unowned Buffer write_uint32 (size_t offset, uint32 val) {
+			uint32 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint32 *) get_pointer (offset, sizeof (uint32))) = target_val;
+			return this;
+		}
+
+		public int64 read_int64 (size_t offset) {
+			int64 val = *((int64 *) get_pointer (offset, sizeof (int64)));
+			return (byte_order == BIG_ENDIAN)
+				? int64.from_big_endian (val)
+				: int64.from_little_endian (val);
+		}
+
+		public unowned Buffer write_int64 (size_t offset, int64 val) {
+			int64 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((int64 *) get_pointer (offset, sizeof (int64))) = target_val;
+			return this;
+		}
+
+		public uint64 read_uint64 (size_t offset) {
+			uint64 val = *((uint64 *) get_pointer (offset, sizeof (uint64)));
+			return (byte_order == BIG_ENDIAN)
+				? uint64.from_big_endian (val)
+				: uint64.from_little_endian (val);
+		}
+
+		public unowned Buffer write_uint64 (size_t offset, uint64 val) {
+			uint64 target_val = (byte_order == BIG_ENDIAN)
+				? val.to_big_endian ()
+				: val.to_little_endian ();
+			*((uint64 *) get_pointer (offset, sizeof (uint64))) = target_val;
+			return this;
+		}
+
+		public float read_float (size_t offset) {
+			uint32 bits = read_uint32 (offset);
+			return *((float *) &bits);
+		}
+
+		public double read_double (size_t offset) {
+			uint64 bits = read_uint64 (offset);
+			return *((double *) &bits);
+		}
+
+		public unowned string read_string (size_t offset) throws Error {
+			string * start = (string *) get_pointer (offset, sizeof (char));
+			size_t max_length = _data.length - offset;
+			string * end = memchr (start, 0, max_length);
+			if (end == null)
+				throw new Error.PROTOCOL ("Missing null character");
+			return start;
+		}
+
+		[CCode (cname = "memchr", cheader_filename = "string.h")]
+		private extern static string * memchr (string * s, int c, size_t n);
+
+		public string read_fixed_string (size_t offset, size_t size) throws Error {
+			string * start = (string *) get_pointer (offset, size);
+			size_t max_length = size_t.min (size, _data.length - offset);
+			string * end = memchr (start, 0, max_length);
+			size_t n;
+			if (end != null)
+				n = end - start;
+			else
+				n = size;
+			return start->substring (0, (long) n);
+		}
+
+		public unowned Buffer write_string (size_t offset, string val) {
+			uint size = val.length + 1;
+			Memory.copy (get_pointer (offset, size), val, size);
+			return this;
+		}
+
+		public Bytes read_bytes (size_t offset, size_t size) {
+			if (_bytes == null)
+				return make_bytes_with_owner ((uint8 *) _data + offset, _data.length - size, this);
+			return _bytes[offset:offset + size];
+		}
+
+		public unowned uint8[] read_data (size_t offset, size_t size) {
+			unowned uint8 * ptr = get_pointer (offset, size);
+			return ((uint8[]) ptr)[:size];
+		}
+
+		public unowned Buffer write_bytes (size_t offset, Bytes bytes) {
+			size_t size = bytes.get_size ();
+			Memory.copy (get_pointer (offset, size), bytes.get_data (), size);
+			return this;
+		}
+
+		private uint8 * get_pointer (size_t offset, size_t n) {
+			size_t minimum_size = offset + n;
+			assert (_data.length >= minimum_size);
+			return (uint8 *) _data + offset;
+		}
+	}
+
+	public sealed class BufferReader {
+		public Buffer buffer {
+			get;
+		}
+
+		public size_t offset {
+			get;
+		}
+
+		public size_t available {
+			get {
+				return _size - _offset;
+			}
+		}
+
+		private size_t _size;
+
+		public BufferReader (Buffer buffer) {
+			reset (buffer);
+		}
+
+		public void reset (Buffer buffer) {
+			_buffer = buffer;
+			_size = buffer.size;
+			_offset = 0;
+		}
+
+		public void reset_at (Buffer buffer, size_t offset) throws Error {
+			_buffer = buffer;
+			_size = buffer.size;
+			seek (offset);
+		}
+
+		public unowned BufferReader seek (size_t offset) throws Error {
+			if (offset > _size)
+				throw new Error.PROTOCOL ("Malformed buffer: truncated");
+			_offset = offset;
+			return this;
+		}
+
+		public unowned BufferReader skip (size_t n) throws Error {
+			check_available (n);
+			_offset += n;
+			return this;
+		}
+
+		public unowned BufferReader align (size_t alignment) throws Error {
+			size_t mask = alignment - 1;
+			size_t rem = _offset & mask;
+			if (rem != 0)
+				skip (alignment - rem);
+			return this;
+		}
+
+		public uint64 peek_pointer () throws Error {
+			var pointer_size = _buffer.pointer_size;
+			check_available (pointer_size);
+			return _buffer.read_pointer (_offset);
+		}
+
+		public uint64 read_pointer () throws Error {
+			var pointer_size = _buffer.pointer_size;
+			check_available (pointer_size);
+			var ptr = _buffer.read_pointer (_offset);
+			_offset += pointer_size;
+			return ptr;
+		}
+
+		public int8 peek_int8 () throws Error {
+			check_available (sizeof (int8));
+			return _buffer.read_int8 (_offset);
+		}
+
+		public int8 read_int8 () throws Error {
+			check_available (sizeof (int8));
+			var val = _buffer.read_int8 (_offset);
+			_offset += sizeof (int8);
+			return val;
+		}
+
+		public uint8 peek_uint8 () throws Error {
+			check_available (sizeof (uint8));
+			return _buffer.read_uint8 (_offset);
+		}
+
+		public uint8 read_uint8 () throws Error {
+			check_available (sizeof (uint8));
+			var val = _buffer.read_uint8 (_offset);
+			_offset += sizeof (uint8);
+			return val;
+		}
+
+		public int16 peek_int16 () throws Error {
+			check_available (sizeof (int16));
+			return _buffer.read_int16 (_offset);
+		}
+
+		public int16 read_int16 () throws Error {
+			check_available (sizeof (int16));
+			var val = _buffer.read_int16 (_offset);
+			_offset += sizeof (int16);
+			return val;
+		}
+
+		public uint16 peek_uint16 () throws Error {
+			check_available (sizeof (uint16));
+			return _buffer.read_uint16 (_offset);
+		}
+
+		public uint16 read_uint16 () throws Error {
+			check_available (sizeof (uint16));
+			var val = _buffer.read_uint16 (_offset);
+			_offset += sizeof (uint16);
+			return val;
+		}
+
+		public int32 peek_int32 () throws Error {
+			check_available (sizeof (int32));
+			return _buffer.read_int32 (_offset);
+		}
+
+		public int32 read_int32 () throws Error {
+			check_available (sizeof (int32));
+			var val = _buffer.read_int32 (_offset);
+			_offset += sizeof (int32);
+			return val;
+		}
+
+		public uint32 peek_uint32 () throws Error {
+			check_available (sizeof (uint32));
+			return _buffer.read_uint32 (_offset);
+		}
+
+		public uint32 read_uint32 () throws Error {
+			check_available (sizeof (uint32));
+			var val = _buffer.read_uint32 (_offset);
+			_offset += sizeof (uint32);
+			return val;
+		}
+
+		public int64 peek_int64 () throws Error {
+			check_available (sizeof (int64));
+			return _buffer.read_int64 (_offset);
+		}
+
+		public int64 read_int64 () throws Error {
+			check_available (sizeof (int64));
+			var val = _buffer.read_int64 (_offset);
+			_offset += sizeof (int64);
+			return val;
+		}
+
+		public uint64 peek_uint64 () throws Error {
+			check_available (sizeof (uint64));
+			return _buffer.read_uint64 (_offset);
+		}
+
+		public uint64 read_uint64 () throws Error {
+			check_available (sizeof (uint64));
+			var val = _buffer.read_uint64 (_offset);
+			_offset += sizeof (uint64);
+			return val;
+		}
+
+		public float peek_float () throws Error {
+			check_available (sizeof (float));
+			return _buffer.read_float (_offset);
+		}
+
+		public float read_float () throws Error {
+			check_available (sizeof (float));
+			var val = _buffer.read_float (_offset);
+			_offset += sizeof (float);
+			return val;
+		}
+
+		public double peek_double () throws Error {
+			check_available (sizeof (double));
+			return _buffer.read_double (_offset);
+		}
+
+		public double read_double () throws Error {
+			check_available (sizeof (double));
+			var val = _buffer.read_double (_offset);
+			_offset += sizeof (double);
+			return val;
+		}
+
+		public unowned string peek_string () throws Error {
+			check_available (1);
+			return _buffer.read_string (_offset);
+		}
+
+		public unowned string read_string () throws Error {
+			check_available (1);
+			unowned string val = _buffer.read_string (_offset);
+			_offset += val.length + 1;
+			return val;
+		}
+
+		public string peek_fixed_string (size_t size) throws Error {
+			check_available (size);
+			return _buffer.read_fixed_string (_offset, size);
+		}
+
+		public string read_fixed_string (size_t size) throws Error {
+			check_available (size);
+			var val = _buffer.read_fixed_string (_offset, size);
+			_offset += size;
+			return val;
+		}
+
+		public unowned uint8[] peek_data (size_t size) throws Error {
+			check_available (size);
+			return _buffer.read_data (_offset, size);
+		}
+
+		public unowned uint8[] read_data (size_t size) throws Error {
+			check_available (size);
+			unowned uint8[] slice = _buffer.read_data (_offset, size);
+			_offset += size;
+			return slice;
+		}
+
+		public Bytes read_bytes (size_t size) throws Error {
+			check_available (size);
+			var val = _buffer.read_bytes (_offset, size);
+			_offset += size;
+			return val;
+		}
+
+		public unowned uint8[] read_remaining_data () throws Error {
+			return read_data (available);
+		}
+
+		private void check_available (size_t n) throws Error {
+			if (available < n)
+				throw new Error.PROTOCOL ("Malformed buffer: truncated");
+		}
+	}
+
+	public extern Bytes make_bytes_with_owner<T> (void * data, size_t size, owned T? owner = null);
+}

lib/base/channel.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class ChannelRegistry : Object {
 		public signal void channel_closed (ChannelId id);

lib/base/dbus.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	// We need to tease out GDBus' private MainContext as libnice needs to know the MainContext up front :(
 	public async MainContext get_dbus_context () {

lib/base/frida-darwin.c

@@ -0,0 +1,51 @@
+#include "frida-darwin.h"
+
+gpointer
+_frida_dispatch_retain (gpointer object)
+{
+  dispatch_retain (object);
+  return object;
+}
+
+void
+_frida_xpc_connection_set_event_handler (xpc_connection_t connection, FridaXpcHandler handler, gpointer user_data)
+{
+  xpc_connection_set_event_handler (connection, ^(xpc_object_t object)
+      {
+        handler (object, user_data);
+      });
+}
+
+void
+_frida_xpc_connection_send_message_with_reply (xpc_connection_t connection, xpc_object_t message, dispatch_queue_t replyq,
+    FridaXpcHandler handler, gpointer user_data, GDestroyNotify notify)
+{
+  xpc_connection_send_message_with_reply (connection, message, replyq, ^(xpc_object_t object)
+      {
+        handler (object, user_data);
+        if (notify != NULL)
+          notify (user_data);
+      });
+}
+
+gchar *
+_frida_xpc_object_to_string (xpc_object_t object)
+{
+  gchar * result;
+  char * str;
+
+  str = xpc_copy_description (object);
+  result = g_strdup (str);
+  free (str);
+
+  return result;
+}
+
+gboolean
+_frida_xpc_dictionary_apply (xpc_object_t dict, FridaXpcDictionaryApplier applier, gpointer user_data)
+{
+  return xpc_dictionary_apply (dict, ^bool (const char * key, xpc_object_t val)
+      {
+        return applier (key, val, user_data);
+      });
+}

lib/base/frida-darwin.h

@@ -0,0 +1,26 @@
+#ifndef __FRIDA_DARWIN_H__
+#define __FRIDA_DARWIN_H__
+
+#ifdef HAVE_MACOS
+
+#include <glib.h>
+#include <xpc/xpc.h>
+
+G_BEGIN_DECLS
+
+typedef void (* FridaXpcHandler) (xpc_object_t object, gpointer user_data);
+typedef gboolean (* FridaXpcDictionaryApplier) (const gchar * key, xpc_object_t val, gpointer user_data);
+
+gpointer _frida_dispatch_retain (gpointer object);
+
+void _frida_xpc_connection_set_event_handler (xpc_connection_t connection, FridaXpcHandler handler, gpointer user_data);
+void _frida_xpc_connection_send_message_with_reply (xpc_connection_t connection, xpc_object_t message, dispatch_queue_t replyq,
+    FridaXpcHandler handler, gpointer user_data, GDestroyNotify notify);
+gchar * _frida_xpc_object_to_string (xpc_object_t object);
+gboolean _frida_xpc_dictionary_apply (xpc_object_t dict, FridaXpcDictionaryApplier applier, gpointer user_data);
+
+G_END_DECLS
+
+#endif
+
+#endif

lib/base/frida-prospero.h

@@ -1,42 +0,0 @@
-#ifndef __FRIDA_PROSPERO_H__
-#define __FRIDA_PROSPERO_H__
-
-#ifdef HAVE_PROSPERO
-
-#include <gum/gum.h>
-
-G_BEGIN_DECLS
-
-#define FRIDA_PROSPERO_AGENT_ARGS_SYMBOL "frida_prospero_agent_args"
-#define FRIDA_PROSPERO_HELLO_BYTE 0xff
-
-typedef struct _FridaProsperoAgentArgs FridaProsperoAgentArgs;
-
-struct _FridaProsperoAgentArgs
-{
-  GumAddress agent_parameters;
-  gint fifo_fd;
-  gint agent_ctrlfd;
-  GumMemoryRange mapped_range;
-};
-
-typedef struct _FridaProsperoAppLaunchContext FridaProsperoAppLaunchContext;
-
-struct _FridaProsperoAppLaunchContext
-{
-  guint32 size;
-  guint32 user_id;
-  guint32 app_opt;
-  guint64 crash_report;
-  guint32 check_flag;
-};
-
-extern int sceUserServiceInitialize (void * params);
-extern int sceUserServiceGetForegroundUser (guint32 * user_id);
-extern int sceSystemServiceLaunchApp (const gchar * title_id, gchar ** argv, FridaProsperoAppLaunchContext * ctx);
-
-G_END_DECLS
-
-#endif
-
-#endif

lib/base/fs.vala

@@ -0,0 +1,114 @@
+namespace Frida.FS {
+	public void mkdirp (File dir, Cancellable? cancellable = null) throws Error {
+		try {
+			dir.make_directory_with_parents (cancellable);
+		} catch (GLib.Error e) {
+			if (!(e is IOError.EXISTS))
+				throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+	}
+
+	public void rmtree (File dir, Cancellable? cancellable = null) throws Error {
+		rmtree_worker (dir, 0, cancellable);
+	}
+
+	private void rmtree_worker (File dir, uint depth, Cancellable? cancellable = null) throws Error {
+		FileEnumerator enumerator;
+		try {
+			enumerator = dir.enumerate_children (FileAttribute.STANDARD_NAME, NOFOLLOW_SYMLINKS, cancellable);
+		} catch (GLib.Error e) {
+			if (depth == 0 && e is IOError.NOT_FOUND)
+				return;
+			throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+
+		try {
+			FileInfo? info;
+			File? child;
+			while (enumerator.iterate (out info, out child, cancellable) && info != null) {
+				if (info == null)
+					continue;
+				if (info.get_file_type () == DIRECTORY)
+					rmtree (child, cancellable);
+				else
+					child.delete (cancellable);
+			}
+
+			dir.delete (cancellable);
+		} catch (GLib.Error e) {
+			if (!(e is IOError.EXISTS))
+				throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+	}
+
+	public async void rmtree_async (File dir, Cancellable? cancellable = null) throws Error, IOError {
+		yield rmtree_async_worker (dir, 0, cancellable);
+	}
+
+	private async void rmtree_async_worker (File dir, uint depth, Cancellable? cancellable = null) throws Error, IOError {
+		int io_priority = Priority.DEFAULT;
+
+		FileEnumerator enumerator;
+		try {
+			enumerator = yield dir.enumerate_children_async (FileAttribute.STANDARD_NAME, NOFOLLOW_SYMLINKS, io_priority,
+				cancellable);
+		} catch (GLib.Error e) {
+			if (depth == 0 && e is IOError.NOT_FOUND)
+				return;
+			throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+
+		try {
+			while (true) {
+				var batch = yield enumerator.next_files_async (1000, io_priority, cancellable);
+				if (batch.is_empty ())
+					break;
+				foreach (FileInfo info in batch) {
+					File child = dir.get_child (info.get_name ());
+					if (info.get_file_type () == DIRECTORY)
+						yield rmtree_async_worker (child, depth + 1, cancellable);
+					else
+						yield child.delete_async (io_priority, cancellable);
+				}
+			}
+
+			yield dir.delete_async (io_priority, cancellable);
+		} catch (GLib.Error e) {
+			throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+	}
+
+	public async string read_all_text (File f, Cancellable? cancellable) throws Error, IOError {
+		Bytes b = yield read_all_bytes (f, cancellable);
+		string text = (string) b.get_data ();
+		if (!text.validate ())
+			throw new Error.PROTOCOL ("Unable to read '%s': invalid UTF-8", f.get_parse_name ());
+		return text;
+	}
+
+	public async void write_all_text (File f, string t, Cancellable? cancellable) throws Error, IOError {
+		yield write_all_bytes (f, new Bytes (t.data), cancellable);
+	}
+
+	public async Bytes read_all_bytes (File f, Cancellable? cancellable) throws Error, IOError {
+		try {
+			return yield f.load_bytes_async (cancellable, null);
+		} catch (GLib.Error e) {
+			if (e is IOError.CANCELLED)
+				throw (IOError) e;
+			if (e is IOError.NOT_FOUND)
+				throw new Error.INVALID_ARGUMENT ("%s", e.message);
+			throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+	}
+
+	public async void write_all_bytes (File f, Bytes b, Cancellable? cancellable) throws Error, IOError {
+		try {
+			yield f.replace_contents_bytes_async (b, null, false, FileCreateFlags.NONE, cancellable, null);
+		} catch (GLib.Error e) {
+			if (e is IOError.CANCELLED)
+				throw (IOError) e;
+			throw new Error.PERMISSION_DENIED ("%s", e.message);
+		}
+	}
+}

lib/base/linux.vala

@@ -123,15 +123,6 @@ namespace Frida {
 			return fd;
 		}
 
-		public static FileDescriptor with_size (string name, size_t size) {
-			assert (is_supported ());
-
-			var fd = new FileDescriptor (memfd_create (name, 0));
-			int res = Posix.ftruncate (fd.handle, (Posix.off_t) size);
-			assert (res == 0);
-			return fd;
-		}
-
 		private int memfd_create (string name, uint flags) {
 			return Linux.syscall (LinuxSyscall.MEMFD_CREATE, name, flags);
 		}

lib/base/meson.build

@@ -1,16 +1,21 @@
 base_sources = [
   'asset-location.vala',
-  'promise.vala',
   'session.vala',
   'session-glue.c',
   'channel.vala',
   'service.vala',
+  'stream.vala',
   'rpc.vala',
   'p2p.vala',
   'p2p-glue.c',
   'dbus.vala',
+  'promise.vala',
+  'fs.vala',
   'socket.vala',
   'socket-glue.c',
+  'buffer.vala',
+  'buffer-glue.c',
+  'value.vala',
   'xnu-syscalls' / 'xnu-syscalls.vala',
   'xnu-syscalls' / 'xnu-syscalls-glue.c',
 ]
@@ -18,12 +23,19 @@ base_sources = [
 extra_vala_args = []
 
 if host_os == 'windows'
-  base_sources += ['windows.vala', 'windows-glue.c']
+  base_sources += 'windows.vala'
 else
   base_sources += 'posix.vala'
   extra_vala_args += '--pkg=posix'
 endif
 
+if host_os == 'macos'
+  base_sources += [
+    'xpc.vala',
+    'frida-darwin.c',
+  ]
+endif
+
 if host_os_family == 'darwin'
   base_sources += 'corefoundation.vala'
   extra_vala_args += '--pkg=darwin-xnu'
@@ -82,6 +94,8 @@ endif
 if host_os_family == 'darwin'
   base_vala_args += [
     '--pkg=corefoundation',
+    '--pkg=darwin-gcd',
+    '--pkg=darwin-xpc',
   ]
 endif
 if host_os_family == 'linux'
@@ -100,7 +114,7 @@ base = static_library('frida-base-' + api_version, base_sources,
   vala_header: 'frida-base.h',
   vala_gir: base_gir_name,
   vala_vapi: f'frida-base-@[email protected]',
-  dependencies: [glib_dep, gobject_dep, gio_dep, libsoup_dep, nice_dep, usrsctp_dep, gee_dep, json_glib_dep, gum_dep, openssl_dep, efni_dep] + extra_deps,
+  dependencies: [glib_dep, gobject_dep, gio_dep, libsoup_dep, nice_dep, usrsctp_dep, gee_dep, json_glib_dep, gum_dep, openssl_dep] + extra_deps,
   install: have_in_tree_payloads,
   install_dir: [true, header_install_dir, true, false],
 )
@@ -108,7 +122,7 @@ base = static_library('frida-base-' + api_version, base_sources,
 base_dep = declare_dependency(
   include_directories: include_directories('.'),
   link_with: base,
-  dependencies: [nice_dep, json_glib_dep, gum_dep, efni_dep] + extra_deps,
+  dependencies: [nice_dep, json_glib_dep, gum_dep] + extra_deps,
 )
 
 base_build_dir = meson.current_build_dir()

lib/base/p2p.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 #if HAVE_NICE
 namespace Frida {
 	namespace PeerConnection {

lib/base/posix.vala

@@ -220,128 +220,4 @@ namespace Frida {
 		Posix.tcsetattr (fd, 0, tios);
 	}
 #endif
-
-	namespace ChildProcess {
-		public async WaitResult wait_for_next_stop (uint pid, Cancellable? cancellable) throws Error, IOError {
-			var main_context = MainContext.get_thread_default ();
-
-			bool timed_out = false;
-			var timeout_source = new TimeoutSource.seconds (5);
-			timeout_source.set_callback (() => {
-				timed_out = true;
-				return Source.REMOVE;
-			});
-			timeout_source.attach (main_context);
-
-			int status = 0;
-			uint[] delays = { 0, 1, 2, 5, 10, 20, 50, 250 };
-
-			try {
-				for (uint i = 0; !timed_out && !cancellable.set_error_if_cancelled (); i++) {
-					int res = Posix.waitpid ((Posix.pid_t) pid, out status, Posix.WNOHANG);
-					if (res == -1)
-						throw new Error.NOT_SUPPORTED ("Unable to wait for next stop: %s", strerror (errno));
-					if (res != 0)
-						break;
-
-					uint delay_ms = (i < delays.length) ? delays[i] : delays[delays.length - 1];
-
-					var delay_source = new TimeoutSource (delay_ms);
-					delay_source.set_callback (wait_for_next_stop.callback);
-					delay_source.attach (main_context);
-
-					var cancel_source = new CancellableSource (cancellable);
-					cancel_source.set_callback (wait_for_next_stop.callback);
-					cancel_source.attach (main_context);
-
-					yield;
-
-					cancel_source.destroy ();
-					delay_source.destroy ();
-				}
-			} finally {
-				timeout_source.destroy ();
-			}
-
-			if (timed_out)
-				throw new Error.TIMED_OUT ("Unexpectedly timed out while waiting for stop from process with PID %u", pid);
-
-			return WaitResult (pid, status);
-		}
-	}
-
-	public struct WaitResult {
-		public uint pid;
-		public int status;
-
-		public WaitKind kind;
-
-		public uint exit_status;
-
-		public int term_signal;
-
-		public int stop_signal;
-
-		public WaitResult (uint pid, int status) {
-			this.pid = pid;
-			this.status = status;
-
-			kind = WaitKind.OTHER;
-			exit_status = 0;
-			term_signal = 0;
-			stop_signal = 0;
-
-			if (PosixStatus.is_exit (status)) {
-				kind = WaitKind.EXITED;
-				exit_status = PosixStatus.parse_exit_status (status);
-			} else if (PosixStatus.is_signaled (status)) {
-				kind = WaitKind.SIGNALED;
-				term_signal = PosixStatus.parse_termination_signal (status);
-			} else if (PosixStatus.is_stopped (status)) {
-				kind = WaitKind.STOPPED;
-
-				stop_signal = PosixStatus.parse_stop_signal (status);
-			}
-		}
-
-		public void check_stopped () throws Error {
-			switch (kind) {
-				case WaitKind.EXITED:
-					throw new Error.NOT_SUPPORTED ("Target exited with status %u", exit_status);
-				case WaitKind.SIGNALED:
-					throw new Error.NOT_SUPPORTED ("Target terminated with signal %u", term_signal);
-				case WaitKind.STOPPED:
-					return;
-				default:
-					throw new Error.NOT_SUPPORTED ("Unexpected status: 0x%08x", status);
-			}
-		}
-	}
-
-	public enum WaitKind {
-		EXITED,
-		SIGNALED,
-		STOPPED,
-		OTHER
-	}
-
-	namespace PosixStatus {
-		[CCode (cname = "WIFEXITED", cheader_filename = "sys/wait.h")]
-		private extern bool is_exit (int status);
-
-		[CCode (cname = "WIFSIGNALED", cheader_filename = "sys/wait.h")]
-		private extern bool is_signaled (int status);
-
-		[CCode (cname = "WIFSTOPPED", cheader_filename = "sys/wait.h")]
-		private extern bool is_stopped (int status);
-
-		[CCode (cname = "WEXITSTATUS", cheader_filename = "sys/wait.h")]
-		private extern uint parse_exit_status (int status);
-
-		[CCode (cname = "WTERMSIG", cheader_filename = "sys/wait.h")]
-		private extern Posix.Signal parse_termination_signal (int status);
-
-		[CCode (cname = "WSTOPSIG", cheader_filename = "sys/wait.h")]
-		private extern Posix.Signal parse_stop_signal (int status);
-	}
 }

lib/base/promise.vala

@@ -1,18 +1,19 @@
 namespace Frida {
 	public sealed class Promise<T> {
-		private Efni.Promise<T> impl;
-		private Future<T>? _future;
+		private Impl<T> impl;
 
 		public Future<T> future {
 			get {
-				if (_future == null)
-					_future = new FutureImpl<T> (impl.future);
-				return _future;
+				return impl;
 			}
 		}
 
 		public Promise () {
-			impl = new Efni.Promise<T> ();
+			impl = new Impl<T> ();
+		}
+
+		~Promise () {
+			impl.abandon ();
 		}
 
 		public void resolve (T result) {
@@ -23,84 +24,149 @@ namespace Frida {
 			impl.reject (error);
 		}
 
-		private class FutureImpl<T> : Object, Future<T> {
-			private Efni.Future<T> inner;
-
+		private class Impl<T> : Object, Future<T> {
 			public bool ready {
 				get {
-					return inner.ready;
+					return _ready;
 				}
 			}
+			private bool _ready = false;
 
 			public T? value {
 				get {
-					return inner.value;
+					return _value;
 				}
 			}
+			private T? _value;
 
 			public GLib.Error? error {
 				get {
-					return inner.error;
+					return _error;
 				}
 			}
+			private GLib.Error? _error;
 
-			public FutureImpl (Efni.Future<T> inner) {
-				this.inner = inner;
-			}
+			private Gee.ArrayQueue<CompletionFuncEntry>? on_complete;
+			private Gee.ArrayQueue<ThenHandlerEntry<T>>? on_then;
 
-			public async T wait_async (Cancellable? cancellable) throws Error, IOError {
-				if (!inner.ready) {
-					bool resumed = false;
+			public async T wait_async (Cancellable? cancellable) throws Frida.Error, IOError {
+				if (_ready)
+					return get_result ();
 
-					var cancel_source = new CancellableSource (cancellable);
-					cancel_source.set_callback (() => {
-						if (!resumed) {
-							resumed = true;
-							wait_async.callback ();
-						}
-						return Source.REMOVE;
-					});
-					cancel_source.attach (MainContext.get_thread_default ());
+				var entry = new CompletionFuncEntry (wait_async.callback);
+				if (on_complete == null)
+					on_complete = new Gee.ArrayQueue<CompletionFuncEntry> ();
+				on_complete.offer (entry);
 
-					inner.then (f => {
-						if (!resumed) {
-							resumed = true;
-							wait_async.callback ();
-						}
-					});
+				var cancel_source = new CancellableSource (cancellable);
+				cancel_source.set_callback (() => {
+					on_complete.remove (entry);
+					wait_async.callback ();
+					return false;
+				});
+				cancel_source.attach (MainContext.get_thread_default ());
 
-					yield;
+				yield;
 
-					cancel_source.destroy ();
+				cancel_source.destroy ();
 
-					cancellable.set_error_if_cancelled ();
-				}
+				cancellable.set_error_if_cancelled ();
 
 				return get_result ();
 			}
 
 			public void then (owned FutureCompletionHandler<T> handler) {
-				inner.then (f => {
-					handler (this);
-				});
-			}
-
-			public T get_result () throws Error, IOError {
-				GLib.Error? e = inner.error;
-				if (e != null) {
-					if (e is Error)
-						throw (Error) e;
-
-					if (e is Efni.Error)
-						throw error_from_efni ((Efni.Error) e);
-
-					if (e is IOError.CANCELLED)
-						throw (IOError) e;
-
-					throw new Error.TRANSPORT ("%s", e.message);
+				if (_ready) {
+					schedule (() => {
+						handler (this);
+						return Source.REMOVE;
+					});
+					return;
 				}
 
-				return inner.value;
+				if (on_then == null)
+					on_then = new Gee.ArrayQueue<ThenHandlerEntry<T>> ();
+				on_then.offer (new ThenHandlerEntry<T> ((owned) handler));
+			}
+
+			public T get_result () throws Frida.Error, IOError {
+				if (error != null) {
+					if (error is Frida.Error)
+						throw (Frida.Error) error;
+
+					if (error is IOError.CANCELLED)
+						throw (IOError) error;
+
+					throw new Frida.Error.TRANSPORT ("%s", error.message);
+				}
+
+				return _value;
+			}
+
+			internal void resolve (T value) {
+				assert (!_ready);
+
+				_value = value;
+				transition_to_ready ();
+			}
+
+			internal void reject (GLib.Error error) {
+				assert (!_ready);
+
+				_error = error;
+				transition_to_ready ();
+			}
+
+			internal void abandon () {
+				if (!_ready) {
+					reject (new Frida.Error.INVALID_OPERATION ("Promise abandoned"));
+				}
+			}
+
+			internal void transition_to_ready () {
+				_ready = true;
+
+				if (on_complete != null || on_then != null) {
+					schedule (() => {
+						if (on_complete != null) {
+							CompletionFuncEntry? entry;
+							while ((entry = on_complete.poll ()) != null)
+								entry.func ();
+							on_complete = null;
+						}
+
+						if (on_then != null) {
+							ThenHandlerEntry? entry;
+							while ((entry = on_then.poll ()) != null)
+								entry.handler (this);
+							on_then = null;
+						}
+
+						return Source.REMOVE;
+					});
+				}
+			}
+
+			private static void schedule (owned SourceFunc function) {
+				var source = new IdleSource ();
+				source.set_callback ((owned) function);
+				source.attach (MainContext.get_thread_default ());
+			}
+		}
+
+		private class CompletionFuncEntry {
+			public SourceFunc func;
+
+			public CompletionFuncEntry (owned SourceFunc func) {
+				this.func = (owned) func;
+			}
+		}
+
+		private class ThenHandlerEntry<T> {
+			public FutureCompletionHandler<T> handler;
+
+			public ThenHandlerEntry (owned FutureCompletionHandler<T> handler) {
+				this.handler = (owned) handler;
 			}
 		}
 	}
@@ -109,9 +175,9 @@ namespace Frida {
 		public abstract bool ready { get; }
 		public abstract T? value { get; }
 		public abstract GLib.Error? error { get; }
-		public abstract async T wait_async (Cancellable? cancellable) throws Error, IOError;
+		public abstract async T wait_async (Cancellable? cancellable) throws Frida.Error, IOError;
 		public abstract void then (owned FutureCompletionHandler<T> handler);
-		public abstract T get_result () throws Error, IOError;
+		public abstract T get_result () throws Frida.Error, IOError;
 	}
 
 	public delegate void FutureCompletionHandler<T> (Future<T> future);

lib/base/session.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	[DBus (name = "re.frida.HostSession17")]
 	public interface HostSession : Object {
@@ -126,11 +124,6 @@ namespace Frida {
 
 		public abstract async void acknowledge_spawn (HostChildInfo info, SpawnStartState start_state,
 			Cancellable? cancellable) throws GLib.Error;
-
-		public abstract uint64 allocate_memory (uint pid, uint64 near_address, uint64 max_distance, uint64 size,
-			uint64 alignment, Gum.PageProtection prot, Cancellable? cancellable) throws GLib.Error;
-		public abstract void protect_memory (uint pid, uint64 address, uint64 size, Gum.PageProtection prot,
-			Cancellable? cancellable) throws GLib.Error;
 	}
 
 	[DBus (name = "re.frida.AgentMessageSink17")]
@@ -368,6 +361,8 @@ namespace Frida {
 
 		private async void teardown_peer_connection_and_emit_closed () {
 			schedule_on_frida_thread (() => {
+				GLib.info ("detach-trace: AgentMessageTransmitter %p emitting closed, nice_agent=%p",
+					this, nice_agent);
 				if (nice_agent != null)
 					close_nice_resources_and_emit_closed.begin ();
 				else
@@ -605,6 +600,7 @@ namespace Frida {
 
 		private async void teardown_peer_connection_and_emit_closed () {
 			schedule_on_frida_thread (() => {
+				GLib.info ("detach-trace: AgentMessageTransmitter %p emitting closed", this);
 				closed ();
 				return Source.REMOVE;
 			});
@@ -1140,15 +1136,6 @@ namespace Frida {
 		}
 	}
 
-#if WINDOWS
-	public struct WindowsInjectorState {
-		public Gum.MemoryRange mapped_range;
-		public Gum.MemoryRange worker_range;
-		public Gum.MemoryRange dbghelp_range;
-		public Gum.MemoryRange symsrv_range;
-	}
-#endif
-
 #if DARWIN
 	public struct DarwinInjectorState {
 		public Gum.MemoryRange? mapped_range;
@@ -1159,8 +1146,6 @@ namespace Frida {
 	public struct LinuxInjectorState {
 		public int frida_ctrlfd;
 		public int agent_ctrlfd;
-		public uint64 mapped_base;
-		public size_t mapped_size;
 	}
 #endif
 
@@ -1170,14 +1155,6 @@ namespace Frida {
 	}
 #endif
 
-#if PROSPERO
-	public struct ProsperoInjectorState {
-		public int fifo_fd;
-		public int agent_ctrlfd;
-		public Gum.MemoryRange? mapped_range;
-	}
-#endif
-
 	/**
 	 * Why spawn gating was disabled on a {@link Device}.
 	 */
@@ -1299,9 +1276,6 @@ namespace Frida {
 		if (e is Frida.Error)
 			throw (Frida.Error) e;
 
-		if (e is Efni.Error)
-			throw error_from_efni ((Efni.Error) e);
-
 		if (e is IOError.CANCELLED)
 			throw (IOError) e;
 
@@ -1315,9 +1289,6 @@ namespace Frida {
 		if (e is Frida.Error)
 			throw (Frida.Error) e;
 
-		if (e is Efni.Error)
-			throw error_from_efni ((Efni.Error) e);
-
 		if (e is IOError.CANCELLED)
 			throw (IOError) e;
 
@@ -1330,41 +1301,6 @@ namespace Frida {
 		throw new Frida.Error.TRANSPORT ("%s", e.message);
 	}
 
-	namespace Marshal {
-		public T enum_from_nick<T> (string nick) throws Error {
-			try {
-				return Efni.Marshal.enum_from_nick<T> (nick);
-			} catch (Efni.Error e) {
-				throw error_from_efni (e);
-			}
-		}
-
-		public string enum_to_nick<T> (int val) {
-			return Efni.Marshal.enum_to_nick<T> (val);
-		}
-	}
-
-	public static Frida.Error error_from_efni (Efni.Error e) {
-		unowned string m = e.message;
-		if (e is Efni.Error.SERVER_NOT_RUNNING)
-			return new Frida.Error.SERVER_NOT_RUNNING ("%s", m);
-		if (e is Efni.Error.INVALID_ARGUMENT)
-			return new Frida.Error.INVALID_ARGUMENT ("%s", m);
-		if (e is Efni.Error.INVALID_OPERATION)
-			return new Frida.Error.INVALID_OPERATION ("%s", m);
-		if (e is Efni.Error.PERMISSION_DENIED)
-			return new Frida.Error.PERMISSION_DENIED ("%s", m);
-		if (e is Efni.Error.ADDRESS_IN_USE)
-			return new Frida.Error.ADDRESS_IN_USE ("%s", m);
-		if (e is Efni.Error.TIMED_OUT)
-			return new Frida.Error.TIMED_OUT ("%s", m);
-		if (e is Efni.Error.NOT_SUPPORTED)
-			return new Frida.Error.NOT_SUPPORTED ("%s", m);
-		if (e is Efni.Error.PROTOCOL)
-			return new Frida.Error.PROTOCOL ("%s", m);
-		return new Frida.Error.TRANSPORT ("%s", m);
-	}
-
 	public struct HostApplicationInfo {
 		public string identifier;
 		public string name;
@@ -2827,4 +2763,54 @@ namespace Frida {
 			return SERVICE + "/" + id.handle;
 		}
 	}
+
+	namespace Marshal {
+		public static T enum_from_nick<T> (string nick) throws Error {
+			var klass = (EnumClass) typeof (T).class_ref ();
+			var v = klass.get_value_by_nick (nick);
+			if (v == null)
+				throw new Error.INVALID_ARGUMENT ("Invalid %s", klass.get_type ().name ());
+			return (T) v.value;
+		}
+
+		public static string enum_to_nick<T> (int val) {
+			var klass = (EnumClass) typeof (T).class_ref ();
+			unowned EnumValue? v = klass.get_value (val);
+			if (v == null)
+				return "unknown-0x%x".printf (val);
+			return v.value_nick;
+		}
+	}
+
+	namespace Numeric {
+		public uint int64_hash (int64? val) {
+			uint64 v = (uint64) val.abs ();
+			return (uint) ((v >> 32) ^ (v & 0xffffffffU));
+		}
+
+		public bool int64_equal (int64? val_a, int64? val_b) {
+			int64 a = val_a;
+			int64 b = val_b;
+			return a == b;
+		}
+
+		public uint uint64_hash (uint64? val) {
+			uint64 v = val;
+			return (uint) ((v >> 32) ^ (v & 0xffffffffU));
+		}
+
+		public bool uint64_equal (uint64? val_a, uint64? val_b) {
+			uint64 a = val_a;
+			uint64 b = val_b;
+			return a == b;
+		}
+
+		public uint bytes_hash (Bytes b) {
+			return b.hash ();
+		}
+
+		public static bool bytes_equal (Bytes a, Bytes b) {
+			return a.compare (b) == 0;
+		}
+	}
 }

lib/base/socket-glue.c

@@ -1,5 +1,30 @@
 #include "frida-base.h"
 
+#ifdef HAVE_WINDOWS
+# include <winsock2.h>
+#else
+# include <netinet/in.h>
+# include <netinet/tcp.h>
+#endif
+
+void
+frida_unix_socket_tune_buffer_sizes (gint fd)
+{
+#ifndef HAVE_WINDOWS
+  /* The defaults are typically as low as 4K. */
+  const int buffer_size = 256 * 1024;
+
+  setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &buffer_size, sizeof (buffer_size));
+  setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &buffer_size, sizeof (buffer_size));
+#endif
+}
+
+void
+frida_tcp_enable_nodelay (GSocket * socket)
+{
+  g_socket_set_option (socket, IPPROTO_TCP, TCP_NODELAY, TRUE, NULL);
+}
+
 const gchar *
 _frida_version_string (void)
 {

lib/base/socket.vala

@@ -1,22 +1,99 @@
-using Efni;
-
 namespace Frida {
 	public const uint16 DEFAULT_CONTROL_PORT = 27042;
 	public const uint16 DEFAULT_CLUSTER_PORT = 27052;
 
 	public SocketConnectable parse_control_address (string? address, uint16 port = 0) throws Error {
-		return parse_frida_address (address, port, DEFAULT_CONTROL_PORT);
+		return parse_socket_address (address, port, "127.0.0.1", DEFAULT_CONTROL_PORT);
 	}
 
 	public SocketConnectable parse_cluster_address (string? address, uint16 port = 0) throws Error {
-		return parse_frida_address (address, port, DEFAULT_CLUSTER_PORT);
+		return parse_socket_address (address, port, "127.0.0.1", DEFAULT_CLUSTER_PORT);
 	}
 
-	private SocketConnectable parse_frida_address (string? address, uint16 port, uint16 default_port) throws Error {
+	public SocketConnectable parse_socket_address (string? address, uint16 port, string default_address,
+			uint16 default_port) throws Error {
+		if (address == null)
+			address = default_address;
+		if (port == 0)
+			port = default_port;
+
+#if !WINDOWS
+		if (address.has_prefix ("unix:")) {
+			string path = address.substring (5);
+
+			UnixSocketAddressType type = UnixSocketAddress.abstract_names_supported ()
+				? UnixSocketAddressType.ABSTRACT
+				: UnixSocketAddressType.PATH;
+
+			return new UnixSocketAddress.with_type (path, -1, type);
+		}
+#endif
+
 		try {
-			return Efni.parse_socket_address (address, port, "127.0.0.1", default_port);
-		} catch (Efni.Error e) {
-			throw error_from_efni (e);
+			return NetworkAddress.parse (address, port);
+		} catch (GLib.Error e) {
+			throw new Error.INVALID_ARGUMENT ("%s", e.message);
+		}
+	}
+
+	namespace UnixSocket {
+		public extern void tune_buffer_sizes (int fd);
+	}
+
+	namespace Tcp {
+		public extern void enable_nodelay (Socket socket);
+	}
+
+	namespace Udp {
+		public size_t recv (uint8[] data, DatagramBased source, Cancellable? cancellable, out InetSocketAddress remote_address)
+				throws Error, IOError {
+			var v = InputVector ();
+			v.buffer = data;
+			v.size = data.length;
+
+			InputVector[] vectors = { v };
+
+			var m = InputMessage ();
+			remote_address = null;
+			m.address = &remote_address;
+			m.vectors = vectors;
+			m.num_vectors = vectors.length;
+
+			InputMessage[] messages = { m };
+
+			try {
+				source.receive_messages (messages, 0, 0, cancellable);
+			} catch (GLib.Error e) {
+				throw new Error.TRANSPORT ("%s", e.message);
+			}
+
+			return messages[0].bytes_received;
+		}
+
+		public void send (uint8[] data, DatagramBased sink, Cancellable? cancellable) throws Error, IOError {
+			send_to (data, null, sink, cancellable);
+		}
+
+		public void send_to (uint8[] data, InetSocketAddress? dest_addr, DatagramBased sink, Cancellable? cancellable)
+				throws Error, IOError {
+			var v = OutputVector ();
+			v.buffer = data;
+			v.size = data.length;
+
+			OutputVector[] vectors = { v };
+
+			var m = OutputMessage ();
+			m.address = dest_addr;
+			m.vectors = vectors;
+			m.num_vectors = vectors.length;
+
+			OutputMessage[] messages = { m };
+
+			try {
+				sink.send_messages (messages, 0, 0, cancellable);
+			} catch (GLib.Error e) {
+				throw new Error.TRANSPORT ("%s", e.message);
+			}
 		}
 	}
 
@@ -649,8 +726,7 @@ namespace Frida {
 				try {
 					remote_address = sc.get_remote_address ();
 				} catch (GLib.Error e) {
-					remove_connection (peer);
-					return;
+					assert_not_reached ();
 				}
 
 				incoming (peer, remote_address);
@@ -1040,9 +1116,6 @@ namespace Frida {
 		construct {
 			websocket.max_incoming_payload_size = (256 * 1024) + 1; // XXX: There's an off-by-one error in libsoup
 
-			if (websocket.get_class ().find_property ("max-total-message-size") != null)
-				websocket.set ("max-total-message-size", websocket.max_incoming_payload_size);
-
 			websocket.closed.connect (on_closed);
 			websocket.message.connect (on_message);
 		}
@@ -1092,7 +1165,7 @@ namespace Frida {
 
 					if (recv_queue.len == 0) {
 #if HAVE_SOUP_WEBSOCKET_BACKPRESSURE
-						resume_websocket_input ();
+						websocket.resume_input ();
 #endif
 					}
 
@@ -1109,21 +1182,6 @@ namespace Frida {
 			return n;
 		}
 
-#if HAVE_SOUP_WEBSOCKET_BACKPRESSURE
-		private void resume_websocket_input () {
-			if (main_context.is_owner ()) {
-				websocket.resume_input ();
-			} else {
-				var source = new IdleSource ();
-				source.set_callback (() => {
-					websocket.resume_input ();
-					return Source.REMOVE;
-				});
-				source.attach (main_context);
-			}
-		}
-#endif
-
 		public override ssize_t write (uint8[] buffer) {
 			with_state_lock (() => {
 				send_queue.append (buffer);

lib/base/stream.vala

@@ -0,0 +1,336 @@
+namespace Frida {
+	public abstract class VirtualStream : IOStream {
+		public override InputStream input_stream {
+			get {
+				return _input_stream;
+			}
+		}
+
+		public override OutputStream output_stream {
+			get {
+				return _output_stream;
+			}
+		}
+
+		public IOCondition pending_io {
+			get {
+				lock (state)
+					return _pending_io;
+			}
+		}
+
+		protected State state = OPEN;
+
+		private VirtualInputStream _input_stream;
+		private VirtualOutputStream _output_stream;
+
+		private IOCondition _pending_io;
+
+		private Gee.Map<unowned Source, IOCondition> sources = new Gee.HashMap<unowned Source, IOCondition> ();
+
+		protected Cancellable io_cancellable = new Cancellable ();
+
+		protected MainContext main_context;
+
+		protected enum State {
+			CREATED,
+			OPENING,
+			OPEN,
+			CLOSED
+		}
+
+		protected delegate void WorkFunc ();
+
+		construct {
+			_input_stream = new VirtualInputStream (this);
+			_output_stream = new VirtualOutputStream (this);
+
+			main_context = MainContext.ref_thread_default ();
+
+			state = query_initial_state ();
+			_pending_io = query_events ();
+		}
+
+		public override void dispose () {
+			_output_stream.detach ();
+			_input_stream.detach ();
+
+			io_cancellable.cancel ();
+
+			base.dispose ();
+		}
+
+		protected virtual State query_initial_state () {
+			return OPEN;
+		}
+
+		protected abstract IOCondition query_events ();
+
+		public override bool close (GLib.Cancellable? cancellable) throws IOError {
+			_close ();
+			return true;
+		}
+
+		public override async bool close_async (int io_priority, GLib.Cancellable? cancellable) throws IOError {
+			_close ();
+			return true;
+		}
+
+		private void _close () {
+			if (main_context.is_owner ()) {
+				do_close ();
+			} else {
+				var source = new IdleSource ();
+				source.set_callback (() => {
+					do_close ();
+					return Source.REMOVE;
+				});
+				source.attach (main_context);
+			}
+		}
+
+		private void do_close () {
+			if (state == CLOSED)
+				return;
+
+			handle_close ();
+		}
+
+		protected abstract void handle_close ();
+
+		public virtual void shutdown_read () throws IOError {
+		}
+
+		public virtual void shutdown_write () throws IOError {
+		}
+
+		public abstract ssize_t read (uint8[] buffer) throws IOError;
+
+		public abstract ssize_t write (uint8[] buffer) throws IOError;
+
+		protected void with_state_lock (WorkFunc func) {
+			lock (state)
+				func ();
+		}
+
+		public void register_source (Source source, IOCondition condition) {
+			lock (state)
+				sources[source] = condition | IOCondition.ERR | IOCondition.HUP;
+		}
+
+		public void unregister_source (Source source) {
+			lock (state)
+				sources.unset (source);
+		}
+
+		protected virtual void update_pending_io () {
+			lock (state) {
+				_pending_io = query_events ();
+
+				foreach (var entry in sources.entries) {
+					unowned Source source = entry.key;
+					IOCondition c = entry.value;
+					if ((_pending_io & c) != 0)
+						source.set_ready_time (0);
+				}
+			}
+
+			notify_property ("pending-io");
+		}
+	}
+
+	private sealed class VirtualInputStream : InputStream, PollableInputStream {
+		private weak VirtualStream stream;
+
+		public VirtualInputStream (VirtualStream stream) {
+			Object ();
+			this.stream = stream;
+		}
+
+		internal void detach () {
+			stream = null;
+		}
+
+		public override bool close (Cancellable? cancellable) throws IOError {
+			if (stream != null)
+				stream.shutdown_read ();
+			return true;
+		}
+
+		public override async bool close_async (int io_priority, Cancellable? cancellable) throws GLib.IOError {
+			return close (cancellable);
+		}
+
+		public override ssize_t read (uint8[] buffer, Cancellable? cancellable) throws IOError {
+			if (stream == null)
+				return 0;
+
+			if (!is_readable ()) {
+				bool done = false;
+				var mutex = Mutex ();
+				var cond = Cond ();
+
+				ulong io_handler = stream.notify["pending-io"].connect ((obj, pspec) => {
+					if (is_readable ()) {
+						mutex.lock ();
+						done = true;
+						cond.signal ();
+						mutex.unlock ();
+					}
+				});
+				ulong cancellation_handler = 0;
+				if (cancellable != null) {
+					cancellation_handler = cancellable.connect (() => {
+						mutex.lock ();
+						done = true;
+						cond.signal ();
+						mutex.unlock ();
+					});
+				}
+
+				if (!is_readable ()) {
+					mutex.lock ();
+					while (!done)
+						cond.wait (mutex);
+					mutex.unlock ();
+				}
+
+				if (cancellation_handler != 0)
+					cancellable.disconnect (cancellation_handler);
+				stream.disconnect (io_handler);
+
+				cancellable.set_error_if_cancelled ();
+			}
+
+			return stream.read (buffer);
+		}
+
+		public bool can_poll () {
+			return true;
+		}
+
+		public bool is_readable () {
+			if (stream == null)
+				return true;
+			return (stream.pending_io & IOCondition.IN) != 0;
+		}
+
+		public PollableSource create_source (Cancellable? cancellable) {
+			return new PollableSource.full (this, new VirtualIOSource (stream, IOCondition.IN), cancellable);
+		}
+
+		public ssize_t read_nonblocking_fn (uint8[] buffer) throws GLib.Error {
+			if (stream == null)
+				return 0;
+			return stream.read (buffer);
+		}
+	}
+
+	private sealed class VirtualOutputStream : OutputStream, PollableOutputStream {
+		private weak VirtualStream? stream;
+
+		public VirtualOutputStream (VirtualStream stream) {
+			Object ();
+			this.stream = stream;
+		}
+
+		internal void detach () {
+			stream = null;
+		}
+
+		public override bool close (Cancellable? cancellable) throws IOError {
+			if (stream != null)
+				stream.shutdown_write ();
+			return true;
+		}
+
+		public override async bool close_async (int io_priority, Cancellable? cancellable) throws GLib.IOError {
+			return close (cancellable);
+		}
+
+		public override bool flush (GLib.Cancellable? cancellable) throws GLib.Error {
+			return true;
+		}
+
+		public override async bool flush_async (int io_priority, GLib.Cancellable? cancellable) throws GLib.Error {
+			return true;
+		}
+
+		public override ssize_t write (uint8[] buffer, Cancellable? cancellable) throws IOError {
+			return stream.write (buffer);
+		}
+
+		public bool can_poll () {
+			return true;
+		}
+
+		public bool is_writable () {
+			if (stream == null)
+				return false;
+			return (stream.pending_io & IOCondition.OUT) != 0;
+		}
+
+		public PollableSource create_source (Cancellable? cancellable) {
+			return new PollableSource.full (this, new VirtualIOSource (stream, IOCondition.OUT), cancellable);
+		}
+
+		public ssize_t write_nonblocking_fn (uint8[]? buffer) throws GLib.Error {
+			if (stream == null)
+				throw new IOError.CLOSED ("Virtual is closed");
+			return stream.write (buffer);
+		}
+
+		public PollableReturn writev_nonblocking_fn (OutputVector[] vectors, out size_t bytes_written) throws GLib.Error {
+			assert_not_reached ();
+		}
+	}
+
+	private class VirtualIOSource : Source {
+		public VirtualStream? stream;
+		public IOCondition condition;
+
+		public VirtualIOSource (VirtualStream stream, IOCondition condition) {
+			this.stream = stream;
+			this.condition = condition;
+
+			if (stream != null)
+				stream.register_source (this, condition);
+		}
+
+		~VirtualIOSource () {
+			if (stream != null)
+				stream.unregister_source (this);
+		}
+
+		protected override bool prepare (out int timeout) {
+			timeout = -1;
+			return is_ready ();
+		}
+
+		protected override bool check () {
+			return is_ready ();
+		}
+
+		private bool is_ready () {
+			IOCondition pending_io = (stream != null) ? stream.pending_io : IOCondition.IN;
+			return (pending_io & condition) != 0;
+		}
+
+		protected override bool dispatch (SourceFunc? callback) {
+			set_ready_time (-1);
+
+			if (callback == null)
+				return Source.REMOVE;
+
+			return callback ();
+		}
+
+		protected static bool closure_callback (Closure closure) {
+			var return_value = Value (typeof (bool));
+
+			closure.invoke (ref return_value, {});
+
+			return return_value.get_boolean ();
+		}
+	}
+}

lib/base/value.vala

@@ -0,0 +1,432 @@
+namespace Frida {
+	public interface ObjectBuilder : Object {
+		public abstract unowned ObjectBuilder begin_dictionary ();
+		public abstract unowned ObjectBuilder set_member_name (string name);
+		public abstract unowned ObjectBuilder end_dictionary ();
+
+		public abstract unowned ObjectBuilder begin_array ();
+		public abstract unowned ObjectBuilder end_array ();
+
+		public abstract unowned ObjectBuilder add_null_value ();
+		public abstract unowned ObjectBuilder add_bool_value (bool val);
+		public abstract unowned ObjectBuilder add_int64_value (int64 val);
+		public abstract unowned ObjectBuilder add_uint64_value (uint64 val);
+		public abstract unowned ObjectBuilder add_data_value (Bytes val);
+		public abstract unowned ObjectBuilder add_string_value (string val);
+		public abstract unowned ObjectBuilder add_uuid_value (uint8[] val);
+		public abstract unowned ObjectBuilder add_raw_value (Bytes val);
+
+		public abstract Bytes build ();
+	}
+
+	public interface ObjectReader : Object {
+		public abstract bool has_member (string name) throws Error;
+		public abstract unowned ObjectReader read_member (string name) throws Error;
+		public abstract unowned ObjectReader end_member ();
+
+		public abstract uint count_elements () throws Error;
+		public abstract unowned ObjectReader read_element (uint index) throws Error;
+		public abstract unowned ObjectReader end_element () throws Error;
+
+		public abstract bool get_bool_value () throws Error;
+		public abstract uint8 get_uint8_value () throws Error;
+		public abstract uint16 get_uint16_value () throws Error;
+		public abstract int64 get_int64_value () throws Error;
+		public abstract uint64 get_uint64_value () throws Error;
+		public abstract Bytes get_data_value () throws Error;
+		public abstract unowned string get_string_value () throws Error;
+		public abstract unowned string get_uuid_value () throws Error;
+	}
+
+	public sealed class VariantReader : Object, ObjectReader {
+		public Variant root_object {
+			get {
+				return scopes.peek_head ().val;
+			}
+		}
+
+		public Variant current_object {
+			get {
+				return scopes.peek_tail ().val;
+			}
+		}
+
+		private Gee.Deque<Scope> scopes = new Gee.ArrayQueue<Scope> ();
+
+		public VariantReader (Variant v) {
+			push_scope (v);
+		}
+
+		public string[] list_members () throws Error {
+			var scope = peek_scope ();
+			if (scope.dict == null)
+				throw new Error.PROTOCOL ("Dictionary expected, but at %s", scope.val.print (true));
+
+			var members = new Gee.ArrayList<string> ();
+			foreach (var item in scope.val) {
+				string k;
+				Variant v;
+				item.get ("{sv}", out k, out v);
+
+				members.add (k);
+			}
+			return members.to_array ();
+		}
+
+		public bool has_member (string name) throws Error {
+			var scope = peek_scope ();
+			if (scope.dict == null)
+				throw new Error.PROTOCOL ("Dictionary expected, but at %s", scope.val.print (true));
+			return scope.dict.contains (name);
+		}
+
+		public unowned ObjectReader read_member (string name) throws Error {
+			var scope = peek_scope ();
+			if (scope.dict == null)
+				throw new Error.PROTOCOL ("Dictionary expected, but at %s", scope.val.print (true));
+
+			Variant? v = scope.dict.lookup_value (name, null);
+			if (v == null)
+				throw new Error.PROTOCOL ("Key '%s' not found in dictionary: %s", name, scope.val.print (true));
+
+			push_scope (v);
+
+			return this;
+		}
+
+		public unowned ObjectReader end_member () {
+			pop_scope ();
+
+			return this;
+		}
+
+		public uint count_elements () throws Error {
+			var scope = peek_scope ();
+			scope.check_array ();
+			return (uint) scope.val.n_children ();
+		}
+
+		public unowned ObjectReader read_element (uint index) throws Error {
+			var scope = peek_scope ();
+			scope.check_array ();
+			push_scope (scope.val.get_child_value (index).get_variant ());
+
+			return this;
+		}
+
+		public unowned ObjectReader end_element () throws Error {
+			pop_scope ();
+
+			return this;
+		}
+
+		public bool get_bool_value () throws Error {
+			return peek_scope ().get_value (VariantType.BOOLEAN).get_boolean ();
+		}
+
+		public uint8 get_uint8_value () throws Error {
+			return peek_scope ().get_value (VariantType.BYTE).get_byte ();
+		}
+
+		public uint16 get_uint16_value () throws Error {
+			return peek_scope ().get_value (VariantType.UINT16).get_uint16 ();
+		}
+
+		public int64 get_int64_value () throws Error {
+			return peek_scope ().get_value (VariantType.INT64).get_int64 ();
+		}
+
+		public uint64 get_uint64_value () throws Error {
+			return peek_scope ().get_value (VariantType.UINT64).get_uint64 ();
+		}
+
+		public Bytes get_data_value () throws Error {
+			return peek_scope ().get_value (new VariantType.array (VariantType.BYTE)).get_data_as_bytes ();
+		}
+
+		public unowned string get_string_value () throws Error {
+			return peek_scope ().get_value (VariantType.STRING).get_string ();
+		}
+
+		public unowned string get_uuid_value () throws Error {
+			return peek_scope ().get_value (VariantType.STRING).get_string (); // TODO: Use a tuple to avoid ambiguity.
+		}
+
+		private void push_scope (Variant v) {
+			scopes.offer_tail (new Scope (v));
+		}
+
+		private Scope peek_scope () {
+			return scopes.peek_tail ();
+		}
+
+		private Scope pop_scope () {
+			return scopes.poll_tail ();
+		}
+
+		private class Scope {
+			public Variant val;
+			public VariantDict? dict;
+			public bool is_array = false;
+
+			public Scope (Variant v) {
+				val = v;
+
+				VariantType t = v.get_type ();
+				if (t.equal (VariantType.VARDICT))
+					dict = new VariantDict (v);
+				else if (t.is_subtype_of (VariantType.ARRAY))
+					is_array = true;
+			}
+
+			public Variant get_value (VariantType expected_type) throws Error {
+				if (!val.get_type ().equal (expected_type)) {
+					throw new Error.PROTOCOL ("Expected type '%s', got '%s'",
+						(string) expected_type.peek_string (),
+						(string) val.get_type ().peek_string ());
+				}
+
+				return val;
+			}
+
+			public void check_array () throws Error {
+				if (!is_array)
+					throw new Error.PROTOCOL ("Array expected, but at %s", val.print (true));
+			}
+		}
+	}
+
+	public sealed class JsonObjectBuilder : Object, ObjectBuilder {
+		private Json.Builder builder = new Json.Builder ();
+		private Gee.Map<string, Bytes> raw_values = new Gee.HashMap<string, Bytes> ();
+
+		public unowned ObjectBuilder begin_dictionary () {
+			builder.begin_object ();
+			return this;
+		}
+
+		public unowned ObjectBuilder set_member_name (string name) {
+			builder.set_member_name (name);
+			return this;
+		}
+
+		public unowned ObjectBuilder end_dictionary () {
+			builder.end_object ();
+			return this;
+		}
+
+		public unowned ObjectBuilder begin_array () {
+			builder.begin_array ();
+			return this;
+		}
+
+		public unowned ObjectBuilder end_array () {
+			builder.end_array ();
+			return this;
+		}
+
+		public unowned ObjectBuilder add_null_value () {
+			builder.add_null_value ();
+			return this;
+		}
+
+		public unowned ObjectBuilder add_bool_value (bool val) {
+			builder.add_boolean_value (val);
+			return this;
+		}
+
+		public unowned ObjectBuilder add_int64_value (int64 val) {
+			builder.add_int_value (val);
+			return this;
+		}
+
+		public unowned ObjectBuilder add_uint64_value (uint64 val) {
+			builder.add_int_value ((int64) val);
+			return this;
+		}
+
+		public unowned ObjectBuilder add_data_value (Bytes val) {
+			builder.add_string_value (Base64.encode (val.get_data ()));
+			return this;
+		}
+
+		public unowned ObjectBuilder add_string_value (string val) {
+			builder.add_string_value (val);
+			return this;
+		}
+
+		public unowned ObjectBuilder add_uuid_value (uint8[] val) {
+			assert_not_reached ();
+		}
+
+		public unowned ObjectBuilder add_raw_value (Bytes val) {
+			string uuid = Uuid.string_random ();
+			builder.add_string_value (uuid);
+			raw_values[uuid] = val;
+			return this;
+		}
+
+		public Bytes build () {
+			string json = Json.to_string (builder.get_root (), false);
+
+			foreach (var e in raw_values.entries) {
+				unowned string uuid = e.key;
+				Bytes val = e.value;
+
+				unowned string raw_str = (string) val.get_data ();
+				string str = raw_str[:(long) val.get_size ()];
+
+				json = json.replace ("\"" + uuid + "\"", str);
+			}
+
+			return new Bytes (json.data);
+		}
+	}
+
+	public sealed class JsonObjectReader : Object, ObjectReader {
+		private Json.Reader reader;
+
+		public JsonObjectReader (string json) throws Error {
+			try {
+				reader = make_json_reader (json);
+			} catch (GLib.Error e) {
+				throw new Error.INVALID_ARGUMENT ("%s", e.message);
+			}
+		}
+
+		public bool has_member (string name) throws Error {
+			bool result = reader.read_member (name);
+			reader.end_member ();
+			return result;
+		}
+
+		public unowned ObjectReader read_member (string name) throws Error {
+			if (!reader.read_member (name))
+				throw_dict_access_error ();
+			return this;
+		}
+
+		public unowned ObjectReader end_member () {
+			reader.end_member ();
+			return this;
+		}
+
+		[NoReturn]
+		private void throw_dict_access_error () throws Error {
+			GLib.Error e = reader.get_error ();
+			reader.end_member ();
+			throw new Error.PROTOCOL ("%s", e.message);
+		}
+
+		public uint count_elements () throws Error {
+			int n = reader.count_elements ();
+			if (n == -1)
+				throw_array_access_error ();
+			return n;
+		}
+
+		public unowned ObjectReader read_element (uint index) throws Error {
+			if (!reader.read_element (index)) {
+				GLib.Error e = reader.get_error ();
+				reader.end_element ();
+				throw new Error.PROTOCOL ("%s", e.message);
+			}
+			return this;
+		}
+
+		public unowned ObjectReader end_element () throws Error {
+			reader.end_element ();
+			return this;
+		}
+
+		[NoReturn]
+		private void throw_array_access_error () throws Error {
+			GLib.Error e = reader.get_error ();
+			reader.end_element ();
+			throw new Error.PROTOCOL ("%s", e.message);
+		}
+
+		public bool get_bool_value () throws Error {
+			bool v = reader.get_boolean_value ();
+			if (!v)
+				maybe_throw_value_access_error ();
+			return v;
+		}
+
+		public uint8 get_uint8_value () throws Error {
+			int64 v = get_int64_value ();
+			if (v < 0 || v > uint8.MAX)
+				throw new Error.PROTOCOL ("Invalid uint8");
+			return (uint8) v;
+		}
+
+		public uint16 get_uint16_value () throws Error {
+			int64 v = get_int64_value ();
+			if (v < 0 || v > uint16.MAX)
+				throw new Error.PROTOCOL ("Invalid uint16");
+			return (uint16) v;
+		}
+
+		public int64 get_int64_value () throws Error {
+			int64 v = reader.get_int_value ();
+			if (v == 0)
+				maybe_throw_value_access_error ();
+			return v;
+		}
+
+		public uint64 get_uint64_value () throws Error {
+			int64 v = get_int64_value ();
+			if (v < 0)
+				throw new Error.PROTOCOL ("Invalid uint64");
+			return v;
+		}
+
+		public Bytes get_data_value () throws Error {
+			return new Bytes (Base64.decode (get_string_value ()));
+		}
+
+		public unowned string get_string_value () throws Error {
+			unowned string? v = reader.get_string_value ();
+			if (v == null)
+				maybe_throw_value_access_error ();
+			return v;
+		}
+
+		public unowned string get_uuid_value () throws Error {
+			return get_string_value ();
+		}
+
+		private void maybe_throw_value_access_error () throws Error {
+			GLib.Error? e = reader.get_error ();
+			if (e == null)
+				return;
+			reader.end_member ();
+			throw new Error.PROTOCOL ("%s", e.message);
+		}
+	}
+
+	/*
+	 * Constructs a Json.Reader for the given JSON string, working around the
+	 * json_node_copy() bug in unpatched json-glib (GNOME bugzilla #774684).
+	 *
+	 * Json.Reader's set_root() copies the supplied node via json_node_copy().
+	 * For object/array nodes that copy is a thin shell that shares the original
+	 * JsonObject/JsonArray via refcount, but the members inside the shared
+	 * container have their parent pointers set to the *original* root, not the
+	 * shell. If the original is then dropped, json_reader_end_member()'s walk
+	 * via json_node_get_parent() touches a freed node — which on builds with
+	 * glib checks enabled (e.g. Fedora) trips JSON_NODE_IS_VALID and aborts.
+	 *
+	 * We keep the original root alive by attaching it to the reader as object
+	 * data; the destroy notify drops our reference when the reader is finalized.
+	 */
+	public Json.Reader make_json_reader (string json) throws GLib.Error {
+		return make_json_reader_taking_node (Json.from_string (json));
+	}
+
+	public Json.Reader make_json_reader_taking_node (owned Json.Node root) {
+		var reader = new Json.Reader (root);
+		reader.set_data<Json.Node> ("frida-json-root", (owned) root);
+		return reader;
+	}
+}

lib/base/windows-glue.c

@@ -1,376 +0,0 @@
-#include "frida-base.h"
-
-#include <windows.h>
-
-#define FRIDA_TYPE_WINDOWS_HANDLE_STREAM (frida_windows_handle_stream_get_type ())
-#define FRIDA_TYPE_WINDOWS_HANDLE_INPUT_STREAM (frida_windows_handle_input_stream_get_type ())
-#define FRIDA_TYPE_WINDOWS_HANDLE_OUTPUT_STREAM (frida_windows_handle_output_stream_get_type ())
-
-#define FRIDA_WINDOWS_HANDLE_STREAM(o) ((FridaWindowsHandleStream *) (o))
-#define FRIDA_WINDOWS_HANDLE_INPUT_STREAM(o) ((FridaWindowsHandleInputStream *) (o))
-#define FRIDA_WINDOWS_HANDLE_OUTPUT_STREAM(o) ((FridaWindowsHandleOutputStream *) (o))
-
-typedef struct _FridaWindowsHandleStream FridaWindowsHandleStream;
-typedef struct _FridaWindowsHandleStreamClass FridaWindowsHandleStreamClass;
-typedef struct _FridaWindowsHandleInputStream FridaWindowsHandleInputStream;
-typedef struct _FridaWindowsHandleInputStreamClass FridaWindowsHandleInputStreamClass;
-typedef struct _FridaWindowsHandleOutputStream FridaWindowsHandleOutputStream;
-typedef struct _FridaWindowsHandleOutputStreamClass FridaWindowsHandleOutputStreamClass;
-
-struct _FridaWindowsHandleStream
-{
-  GIOStream parent;
-
-  HANDLE handle;
-  HANDLE read_complete;
-  HANDLE read_cancel;
-  HANDLE write_complete;
-  HANDLE write_cancel;
-
-  GInputStream * input;
-  GOutputStream * output;
-};
-
-struct _FridaWindowsHandleStreamClass
-{
-  GIOStreamClass parent_class;
-};
-
-struct _FridaWindowsHandleInputStream
-{
-  GInputStream parent;
-
-  FridaWindowsHandleStream * stream;
-};
-
-struct _FridaWindowsHandleInputStreamClass
-{
-  GInputStreamClass parent_class;
-};
-
-struct _FridaWindowsHandleOutputStream
-{
-  GOutputStream parent;
-
-  FridaWindowsHandleStream * stream;
-};
-
-struct _FridaWindowsHandleOutputStreamClass
-{
-  GOutputStreamClass parent_class;
-};
-
-static GIOStream * frida_windows_handle_stream_new (HANDLE handle);
-
-static void frida_windows_handle_stream_finalize (GObject * object);
-static GInputStream * frida_windows_handle_stream_get_input_stream (GIOStream * stream);
-static GOutputStream * frida_windows_handle_stream_get_output_stream (GIOStream * stream);
-static gboolean frida_windows_handle_stream_close_fn (GIOStream * stream, GCancellable * cancellable, GError ** error);
-
-static gssize frida_windows_handle_input_stream_read (GInputStream * base, void * buffer, gsize count,
-    GCancellable * cancellable, GError ** error);
-static gboolean frida_windows_handle_input_stream_close (GInputStream * base, GCancellable * cancellable, GError ** error);
-
-static gssize frida_windows_handle_output_stream_write (GOutputStream * base, const void * buffer, gsize count,
-    GCancellable * cancellable, GError ** error);
-static gboolean frida_windows_handle_output_stream_close (GOutputStream * base, GCancellable * cancellable,
-    GError ** error);
-
-static gboolean frida_windows_handle_stream_await (FridaWindowsHandleStream * self, HANDLE complete, HANDLE cancel,
-    GCancellable * cancellable, GError ** error);
-static void frida_windows_handle_stream_on_cancel (GCancellable * cancellable, gpointer user_data);
-
-G_DEFINE_TYPE (FridaWindowsHandleStream, frida_windows_handle_stream, G_TYPE_IO_STREAM)
-G_DEFINE_TYPE (FridaWindowsHandleInputStream, frida_windows_handle_input_stream, G_TYPE_INPUT_STREAM)
-G_DEFINE_TYPE (FridaWindowsHandleOutputStream, frida_windows_handle_output_stream, G_TYPE_OUTPUT_STREAM)
-
-GIOStream *
-frida_windows_named_pipe_open_client (const gchar * path, GError ** error)
-{
-  HANDLE handle;
-  WCHAR * path_utf16;
-  DWORD last_error;
-
-  path_utf16 = (WCHAR *) g_utf8_to_utf16 (path, -1, NULL, NULL, NULL);
-  if (path_utf16 == NULL)
-    goto invalid_path;
-
-  handle = CreateFileW (path_utf16,
-      GENERIC_READ | GENERIC_WRITE,
-      0,
-      NULL,
-      OPEN_EXISTING,
-      FILE_FLAG_OVERLAPPED,
-      NULL);
-  last_error = GetLastError ();
-  g_free (path_utf16);
-
-  if (handle == INVALID_HANDLE_VALUE)
-    goto cannot_open;
-
-  return frida_windows_handle_stream_new (handle);
-
-invalid_path:
-  {
-    g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT, "Invalid pipe path");
-    return NULL;
-  }
-cannot_open:
-  {
-    g_set_error (error,
-        G_IO_ERROR,
-        g_io_error_from_win32_error (last_error),
-        "Unable to open %s (CreateFile returned 0x%08lx)",
-        path, last_error);
-    return NULL;
-  }
-}
-
-static GIOStream *
-frida_windows_handle_stream_new (HANDLE handle)
-{
-  FridaWindowsHandleStream * stream;
-  FridaWindowsHandleInputStream * input;
-  FridaWindowsHandleOutputStream * output;
-
-  stream = g_object_new (FRIDA_TYPE_WINDOWS_HANDLE_STREAM, NULL);
-  stream->handle = handle;
-  stream->read_complete = CreateEvent (NULL, TRUE, FALSE, NULL);
-  stream->read_cancel = CreateEvent (NULL, TRUE, FALSE, NULL);
-  stream->write_complete = CreateEvent (NULL, TRUE, FALSE, NULL);
-  stream->write_cancel = CreateEvent (NULL, TRUE, FALSE, NULL);
-
-  input = g_object_new (FRIDA_TYPE_WINDOWS_HANDLE_INPUT_STREAM, NULL);
-  input->stream = stream;
-  stream->input = G_INPUT_STREAM (input);
-
-  output = g_object_new (FRIDA_TYPE_WINDOWS_HANDLE_OUTPUT_STREAM, NULL);
-  output->stream = stream;
-  stream->output = G_OUTPUT_STREAM (output);
-
-  return G_IO_STREAM (stream);
-}
-
-static void
-frida_windows_handle_stream_class_init (FridaWindowsHandleStreamClass * klass)
-{
-  GObjectClass * object_class = G_OBJECT_CLASS (klass);
-  GIOStreamClass * stream_class = G_IO_STREAM_CLASS (klass);
-
-  object_class->finalize = frida_windows_handle_stream_finalize;
-
-  stream_class->get_input_stream = frida_windows_handle_stream_get_input_stream;
-  stream_class->get_output_stream = frida_windows_handle_stream_get_output_stream;
-  stream_class->close_fn = frida_windows_handle_stream_close_fn;
-}
-
-static void
-frida_windows_handle_stream_init (FridaWindowsHandleStream * self)
-{
-  self->handle = INVALID_HANDLE_VALUE;
-}
-
-static void
-frida_windows_handle_stream_finalize (GObject * object)
-{
-  FridaWindowsHandleStream * self = FRIDA_WINDOWS_HANDLE_STREAM (object);
-
-  g_clear_object (&self->input);
-  g_clear_object (&self->output);
-
-  CloseHandle (self->read_complete);
-  CloseHandle (self->read_cancel);
-  CloseHandle (self->write_complete);
-  CloseHandle (self->write_cancel);
-
-  if (self->handle != INVALID_HANDLE_VALUE)
-    CloseHandle (self->handle);
-
-  G_OBJECT_CLASS (frida_windows_handle_stream_parent_class)->finalize (object);
-}
-
-static GInputStream *
-frida_windows_handle_stream_get_input_stream (GIOStream * stream)
-{
-  return FRIDA_WINDOWS_HANDLE_STREAM (stream)->input;
-}
-
-static GOutputStream *
-frida_windows_handle_stream_get_output_stream (GIOStream * stream)
-{
-  return FRIDA_WINDOWS_HANDLE_STREAM (stream)->output;
-}
-
-static gboolean
-frida_windows_handle_stream_close_fn (GIOStream * stream, GCancellable * cancellable, GError ** error)
-{
-  FridaWindowsHandleStream * self = FRIDA_WINDOWS_HANDLE_STREAM (stream);
-
-  SetEvent (self->read_cancel);
-  SetEvent (self->write_cancel);
-
-  if (self->handle != INVALID_HANDLE_VALUE)
-  {
-    CancelIo (self->handle);
-    CloseHandle (self->handle);
-    self->handle = INVALID_HANDLE_VALUE;
-  }
-
-  return TRUE;
-}
-
-static void
-frida_windows_handle_input_stream_class_init (FridaWindowsHandleInputStreamClass * klass)
-{
-  GInputStreamClass * stream_class = G_INPUT_STREAM_CLASS (klass);
-
-  stream_class->read_fn = frida_windows_handle_input_stream_read;
-  stream_class->close_fn = frida_windows_handle_input_stream_close;
-}
-
-static void
-frida_windows_handle_input_stream_init (FridaWindowsHandleInputStream * self)
-{
-}
-
-static gssize
-frida_windows_handle_input_stream_read (GInputStream * base, void * buffer, gsize count, GCancellable * cancellable,
-    GError ** error)
-{
-  FridaWindowsHandleStream * stream = FRIDA_WINDOWS_HANDLE_INPUT_STREAM (base)->stream;
-  OVERLAPPED overlapped = { 0, };
-  DWORD bytes_transferred, last_error;
-
-  if (stream->handle == INVALID_HANDLE_VALUE)
-    return 0;
-
-  overlapped.hEvent = stream->read_complete;
-  if (!ReadFile (stream->handle, buffer, count, NULL, &overlapped) && GetLastError () != ERROR_IO_PENDING)
-    goto failure;
-
-  if (!frida_windows_handle_stream_await (stream, stream->read_complete, stream->read_cancel, cancellable, error))
-    return -1;
-
-  if (!GetOverlappedResult (stream->handle, &overlapped, &bytes_transferred, FALSE))
-    goto failure;
-
-  return bytes_transferred;
-
-failure:
-  {
-    last_error = GetLastError ();
-    if (last_error == ERROR_BROKEN_PIPE || last_error == ERROR_PIPE_NOT_CONNECTED)
-      return 0;
-    g_set_error (error,
-        G_IO_ERROR,
-        g_io_error_from_win32_error (last_error),
-        "Error reading from pipe");
-    return -1;
-  }
-}
-
-static gboolean
-frida_windows_handle_input_stream_close (GInputStream * base, GCancellable * cancellable, GError ** error)
-{
-  return TRUE;
-}
-
-static void
-frida_windows_handle_output_stream_class_init (FridaWindowsHandleOutputStreamClass * klass)
-{
-  GOutputStreamClass * stream_class = G_OUTPUT_STREAM_CLASS (klass);
-
-  stream_class->write_fn = frida_windows_handle_output_stream_write;
-  stream_class->close_fn = frida_windows_handle_output_stream_close;
-}
-
-static void
-frida_windows_handle_output_stream_init (FridaWindowsHandleOutputStream * self)
-{
-}
-
-static gssize
-frida_windows_handle_output_stream_write (GOutputStream * base, const void * buffer, gsize count,
-    GCancellable * cancellable, GError ** error)
-{
-  FridaWindowsHandleStream * stream = FRIDA_WINDOWS_HANDLE_OUTPUT_STREAM (base)->stream;
-  OVERLAPPED overlapped = { 0, };
-  DWORD bytes_transferred, last_error;
-
-  if (stream->handle == INVALID_HANDLE_VALUE)
-    goto closed;
-
-  overlapped.hEvent = stream->write_complete;
-  if (!WriteFile (stream->handle, buffer, count, NULL, &overlapped) && GetLastError () != ERROR_IO_PENDING)
-    goto failure;
-
-  if (!frida_windows_handle_stream_await (stream, stream->write_complete, stream->write_cancel, cancellable, error))
-    return -1;
-
-  if (!GetOverlappedResult (stream->handle, &overlapped, &bytes_transferred, FALSE))
-    goto failure;
-
-  return bytes_transferred;
-
-closed:
-  {
-    g_set_error (error, G_IO_ERROR, G_IO_ERROR_CLOSED, "Pipe is closed");
-    return -1;
-  }
-failure:
-  {
-    last_error = GetLastError ();
-    g_set_error (error,
-        G_IO_ERROR,
-        g_io_error_from_win32_error (last_error),
-        "Error writing to pipe");
-    return -1;
-  }
-}
-
-static gboolean
-frida_windows_handle_output_stream_close (GOutputStream * base, GCancellable * cancellable, GError ** error)
-{
-  return TRUE;
-}
-
-static gboolean
-frida_windows_handle_stream_await (FridaWindowsHandleStream * self, HANDLE complete, HANDLE cancel,
-    GCancellable * cancellable, GError ** error)
-{
-  gulong handler_id = 0;
-  HANDLE events[2];
-
-  if (cancellable != NULL)
-    handler_id = g_cancellable_connect (cancellable, G_CALLBACK (frida_windows_handle_stream_on_cancel), cancel, NULL);
-
-  events[0] = complete;
-  events[1] = cancel;
-  WaitForMultipleObjects (G_N_ELEMENTS (events), events, FALSE, INFINITE);
-
-  if (cancellable != NULL)
-  {
-    g_cancellable_disconnect (cancellable, handler_id);
-    if (g_cancellable_set_error_if_cancelled (cancellable, error))
-    {
-      CancelIo (self->handle);
-      return FALSE;
-    }
-  }
-
-  if (WaitForSingleObject (cancel, 0) == WAIT_OBJECT_0)
-  {
-    g_set_error (error, G_IO_ERROR, G_IO_ERROR_CLOSED, "Pipe is closed");
-    return FALSE;
-  }
-
-  return TRUE;
-}
-
-static void
-frida_windows_handle_stream_on_cancel (GCancellable * cancellable, gpointer user_data)
-{
-  HANDLE cancel = (HANDLE) user_data;
-
-  SetEvent (cancel);
-}

lib/base/windows.vala

@@ -1,8 +1,4 @@
 namespace Frida {
-	namespace WindowsNamedPipe {
-		public extern IOStream open_client (string path) throws GLib.Error;
-	}
-
 	public sealed class StdioPipes : Object {
 		public OutputStream input {
 			get;

lib/base/xpc.vala

@@ -0,0 +1,291 @@
+namespace Frida {
+	public sealed class XpcClient : Object {
+		public signal void message (Darwin.Xpc.Object obj);
+
+		public State state {
+			get {
+				return _state;
+			}
+		}
+
+		public Darwin.Xpc.Connection connection {
+			get;
+			construct;
+		}
+
+		public Darwin.GCD.DispatchQueue queue {
+			get;
+			construct;
+		}
+
+		private State _state;
+		private string? close_reason;
+		private MainContext main_context;
+
+		public enum State {
+			OPEN,
+			CLOSING,
+			CLOSED,
+		}
+
+		public static XpcClient make_for_mach_service (string name, Darwin.GCD.DispatchQueue queue) {
+			return new XpcClient (Darwin.Xpc.Connection.create_mach_service (name, queue, 0), queue);
+		}
+
+		public XpcClient (Darwin.Xpc.Connection connection, Darwin.GCD.DispatchQueue queue) {
+			Object (connection: connection, queue: queue);
+		}
+
+		construct {
+			main_context = MainContext.ref_thread_default ();
+
+			connection.set_event_handler (on_event);
+			connection.activate ();
+		}
+
+		public override void dispose () {
+			if (close_reason != null) {
+				change_state (CLOSED);
+			} else {
+				change_state (CLOSING);
+				this.ref ();
+				connection.cancel ();
+			}
+
+			base.dispose ();
+		}
+
+		public async Darwin.Xpc.Object request (Darwin.Xpc.Object message, Cancellable? cancellable) throws Error, IOError {
+			Darwin.Xpc.Object? reply = null;
+			connection.send_message_with_reply (message, queue, r => {
+				schedule_on_frida_thread (() => {
+					reply = r;
+					request.callback ();
+					return Source.REMOVE;
+				});
+			});
+
+			var cancel_source = new CancellableSource (cancellable);
+			cancel_source.set_callback (() => {
+				connection.cancel ();
+				return Source.REMOVE;
+			});
+			cancel_source.attach (main_context);
+
+			yield;
+
+			cancel_source.destroy ();
+
+			if (reply.type == Darwin.Xpc.Error.TYPE) {
+				var e = (Darwin.Xpc.Error) reply;
+				throw new Error.NOT_SUPPORTED ("%s", e.get_string (Darwin.Xpc.Error.KEY_DESCRIPTION));
+			}
+
+			return reply;
+		}
+
+		public void post (Darwin.Xpc.Object message) throws Error, IOError {
+			connection.send_message (message);
+		}
+
+		private void change_state (State new_state) {
+			_state = new_state;
+			notify_property ("state");
+		}
+
+		private void on_event (Darwin.Xpc.Object obj) {
+			schedule_on_frida_thread (() => {
+				if (obj.type == Darwin.Xpc.Error.TYPE) {
+					var e = (Darwin.Xpc.Error) obj;
+					close_reason = e.get_string (Darwin.Xpc.Error.KEY_DESCRIPTION);
+					switch (state) {
+						case OPEN:
+							change_state (CLOSED);
+							break;
+						case CLOSING:
+							change_state (CLOSED);
+							unref ();
+							break;
+						case CLOSED:
+							assert_not_reached ();
+					}
+				} else {
+					message (obj);
+				}
+				return Source.REMOVE;
+			});
+		}
+
+		private void schedule_on_frida_thread (owned SourceFunc function) {
+			var source = new IdleSource ();
+			source.set_callback ((owned) function);
+			source.attach (main_context);
+		}
+	}
+
+	public sealed class XpcObjectReader {
+		public Darwin.Xpc.Object root_object {
+			get {
+				return scopes.peek_head ().object;
+			}
+		}
+
+		public Darwin.Xpc.Object current_object {
+			get {
+				return scopes.peek_tail ().object;
+			}
+		}
+
+		public delegate int TranslateErrorFunc (string domain, int code, string description);
+
+		private Gee.Deque<Scope> scopes = new Gee.ArrayQueue<Scope> ();
+
+		public XpcObjectReader (Darwin.Xpc.Object obj) {
+			push_scope (obj);
+		}
+
+		public bool has_member (string name) throws Error {
+			return peek_scope ().get_dictionary ().get_value (name) != null;
+		}
+
+		public bool try_read_member (string name) throws Error {
+			var scope = peek_scope ();
+			var dict = scope.get_dictionary ();
+			var val = dict.get_value (name);
+			if (val == null)
+				return false;
+
+			push_scope (val);
+
+			return true;
+		}
+
+		public unowned XpcObjectReader read_member (string name) throws Error {
+			var scope = peek_scope ();
+			var dict = scope.get_dictionary ();
+			var val = dict.get_value (name);
+			if (val == null)
+				throw new Error.PROTOCOL ("Key '%s' not found in dictionary: %s", name, scope.object.to_string ());
+
+			push_scope (val);
+
+			return this;
+		}
+
+		public unowned XpcObjectReader end_member () {
+			pop_scope ();
+
+			return this;
+		}
+
+		public size_t count_elements () throws Error {
+			return peek_scope ().get_array ().count;
+		}
+
+		public unowned XpcObjectReader read_element (size_t index) throws Error {
+			push_scope (peek_scope ().get_array ().get_value (index));
+
+			return this;
+		}
+
+		public unowned XpcObjectReader end_element () throws Error {
+			pop_scope ();
+
+			return this;
+		}
+
+		public bool get_bool_value () throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.Bool> (Darwin.Xpc.Bool.TYPE).get_value ();
+		}
+
+		public int64 get_int64_value () throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.Int64> (Darwin.Xpc.Int64.TYPE).get_value ();
+		}
+
+		public uint64 get_uint64_value () throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.UInt64> (Darwin.Xpc.UInt64.TYPE).get_value ();
+		}
+
+		public unowned uint8[] get_data_value () throws Error {
+			var data = peek_scope ().get_object<Darwin.Xpc.Data> (Darwin.Xpc.Data.TYPE);
+			unowned uint8[] buf = (uint8[]) data.get_bytes_ptr ();
+			buf.length = (int) data.get_length ();
+			return buf;
+		}
+
+		public unowned string get_string_value () throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.String> (Darwin.Xpc.String.TYPE).get_string_ptr ();
+		}
+
+		public unowned uint8[] get_uuid_value () throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.Uuid> (Darwin.Xpc.Uuid.TYPE).get_bytes ()[:16];
+		}
+
+		public unowned string get_error_description () throws Error {
+			var error = peek_scope ().get_object<Darwin.Xpc.Error> (Darwin.Xpc.Error.TYPE);
+			return error.get_string (Darwin.Xpc.Error.KEY_DESCRIPTION);
+		}
+
+		public void check_nserror (TranslateErrorFunc translate_error) throws Error {
+			if (!has_member ("error"))
+				return;
+
+			read_member ("error");
+
+			unowned string domain = read_member ("domain").get_string_value ();
+			end_member ();
+
+			var code = (int) read_member ("code").get_int64_value ();
+			end_member ();
+
+			string description = read_member ("userInfo").read_member ("NSLocalizedDescription").get_string_value ();
+			if (description.has_suffix ("."))
+				description = description[:description.length - 1];
+
+			throw (Error) new GLib.Error.literal (
+				Quark.from_string ("frida-error-quark"),
+				translate_error (domain, code, description),
+				description);
+		}
+
+		public unowned Darwin.Xpc.Object get_object_value (Darwin.Xpc.Type expected_type) throws Error {
+			return peek_scope ().get_object<Darwin.Xpc.Object> (expected_type);
+		}
+
+		private void push_scope (Darwin.Xpc.Object obj) {
+			scopes.offer_tail (new Scope (obj));
+		}
+
+		private Scope peek_scope () {
+			return scopes.peek_tail ();
+		}
+
+		private Scope pop_scope () {
+			return scopes.poll_tail ();
+		}
+
+		private class Scope {
+			public Darwin.Xpc.Object object;
+			private unowned Darwin.Xpc.Type type;
+
+			public Scope (Darwin.Xpc.Object obj) {
+				object = obj;
+				type = obj.type;
+			}
+
+			public unowned T get_object<T> (Darwin.Xpc.Type expected_type) throws Error {
+				if (type != expected_type)
+					throw new Error.PROTOCOL ("Expected type '%s', got '%s'", expected_type.name, type.name);
+				return object;
+			}
+
+			public unowned Darwin.Xpc.Array get_array () throws Error {
+				return get_object<Darwin.Xpc.Array> (Darwin.Xpc.Array.TYPE);
+			}
+
+			public unowned Darwin.Xpc.Dictionary get_dictionary () throws Error {
+				return get_object<Darwin.Xpc.Dictionary> (Darwin.Xpc.Dictionary.TYPE);
+			}
+		}
+	}
+}

lib/gadget/gadget.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida.Gadget {
 	private sealed class Config : Object, Json.Serializable {
 		public Object interaction {

lib/gadget/meson.build

@@ -55,10 +55,6 @@ if host_os_family in ['linux', 'qnx']
   extra_link_args += ['-Wl,-Bsymbolic']
 endif
 
-if host_is_prospero
-  extra_link_args += [prospero_crt_link_args, '-Wl,--defsym=main=0']
-endif
-
 raw_gadget = shared_library('frida-gadget-raw', gadget_sources,
   name_prefix: 'lib',
   vala_args: [base_vala_args, payload_vala_args, extra_vala_args],

lib/netif/meson.build

@@ -8,6 +8,7 @@ extra_link_args = []
 if host_os in ['ios', 'tvos']
   extra_vala_args += [
     '--pkg=corefoundation',
+    '--pkg=darwin-gcd',
     '--pkg=darwin-systemconfiguration',
   ]
   extra_link_args += '-Wl,-framework,SystemConfiguration'

lib/payload/base-agent-session.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public abstract class BaseAgentSession : Object, AgentSession {
 		public signal void closed ();
@@ -59,6 +57,8 @@ namespace Frida {
 		}
 
 		public async void close (Cancellable? cancellable) throws IOError {
+			GLib.info ("detach-trace: BaseAgentSession.close() id=%s close_request=%p", id.handle, close_request);
+
 			while (close_request != null) {
 				try {
 					yield close_request.future.wait_async (cancellable);
@@ -87,6 +87,8 @@ namespace Frida {
 
 			yield transmitter.close (cancellable);
 
+			GLib.info ("detach-trace: BaseAgentSession.close() done id=%s", id.handle);
+
 			close_request.resolve (true);
 		}
 
@@ -278,6 +280,8 @@ namespace Frida {
 			transmitter.new_candidates.disconnect (on_transmitter_new_candidates);
 			transmitter.candidate_gathering_done.disconnect (on_transmitter_candidate_gathering_done);
 
+			GLib.info ("detach-trace: BaseAgentSession emitting closed id=%s", id.handle);
+
 			closed ();
 		}
 

lib/payload/exit-monitor.vala

@@ -35,21 +35,15 @@ namespace Frida {
 			interceptor.attach ((void *) Gum.Process.find_module_by_name ("kernel32.dll").find_export_by_name ("ExitProcess"),
 				listener);
 #else
+			var libc = Gum.Process.get_libc_module ();
 			const string[] apis = {
 				"exit",
 				"_exit",
 				"abort",
 			};
-#if PROSPERO
-			foreach (var symbol in apis) {
-				interceptor.attach ((void *) Gum.Module.find_global_export_by_name (symbol), listener);
-			}
-#else
-			var libc = Gum.Process.get_libc_module ();
 			foreach (var symbol in apis) {
 				interceptor.attach ((void *) libc.find_export_by_name (symbol), listener);
 			}
-#endif
 #endif
 		}
 

lib/payload/libc-shim.c

@@ -28,7 +28,6 @@
 #undef feof
 #undef ferror
 #undef fgetwc
-#undef fileno
 #undef fopen
 #undef fopen64
 #undef fputwc
@@ -215,7 +214,6 @@ static void frida_stdio_unregister_stream (FILE * stream);
 static void frida_stdio_register_dir (DIR * dirp);
 static void frida_stdio_unregister_dir (DIR * dirp);
 #endif
-static void frida_stdio_ensure_registries (void);
 static void frida_flush_all_streams (int * result);
 
 static FridaFile * frida_file_get_impl (FILE * stream);
@@ -253,13 +251,7 @@ static ssize_t frida_write_nointr (int fd, const void * buf, size_t count);
 static int frida_close_nointr (int fd);
 static off_t frida_lseek_nointr (int fd, off_t offset, int whence);
 
-#if defined (HAVE_QNX)
-G_GNUC_INTERNAL FILE _Stdin, _Stdout, _Stderr;
-
-G_GNUC_INTERNAL FILE * stdin = &_Stdin;
-G_GNUC_INTERNAL FILE * stdout = &_Stdout;
-G_GNUC_INTERNAL FILE * stderr = &_Stderr;
-#elif !defined (FRIDA_STDIO_OPAQUE_FILE)
+#ifndef FRIDA_STDIO_OPAQUE_FILE
 G_GNUC_INTERNAL FILE __sF[3];
 
 G_GNUC_INTERNAL FILE * stdin = &__sF[0];
@@ -309,18 +301,33 @@ frida_libc_shim_init (void)
 
   G_LOCK (frida_stdio);
 
-  frida_stdio_ensure_registries ();
+  frida_streams = g_hash_table_new (g_direct_hash, g_direct_equal);
+#ifdef HAVE_FRIDA_DIR
+  frida_dirs = g_hash_table_new (g_direct_hash, g_direct_equal);
+#endif
 
   G_UNLOCK (frida_stdio);
 
   f0 = frida_file_new (0, FALSE, _IOFBF);
-  frida_file_bind_slot (stdin, f0);
+#ifndef FRIDA_STDIO_OPAQUE_FILE
+  frida_file_bind_slot (&__sF[0], f0);
+#else
+  frida_file_bind_slot ((FILE *) &frida_stdio[0], f0);
+#endif
 
   f1 = frida_file_new (1, FALSE, _IOLBF);
-  frida_file_bind_slot (stdout, f1);
+#ifndef FRIDA_STDIO_OPAQUE_FILE
+  frida_file_bind_slot (&__sF[1], f1);
+#else
+  frida_file_bind_slot ((FILE *) &frida_stdio[1], f1);
+#endif
 
   f2 = frida_file_new (2, FALSE, _IONBF);
-  frida_file_bind_slot (stderr, f2);
+#ifndef FRIDA_STDIO_OPAQUE_FILE
+  frida_file_bind_slot (&__sF[2], f2);
+#else
+  frida_file_bind_slot ((FILE *) &frida_stdio[2], f2);
+#endif
 
   frida_libc_shim_initialized = TRUE;
 }
@@ -631,7 +638,7 @@ __vsnprintf_chk (char * string, size_t size, int flags, size_t len, const char *
   return gum_vsnprintf (string, size, format, args);
 }
 
-#if defined (HAVE_XLOCALE_H) && !defined (HAVE_PROSPERO)
+#ifdef HAVE_XLOCALE_H
 
 G_GNUC_INTERNAL int
 sprintf_l (char * string, locale_t loc, const char * format, ...)
@@ -1897,7 +1904,6 @@ frida_stdio_register_stream (FILE * stream)
 {
   G_LOCK (frida_stdio);
 
-  frida_stdio_ensure_registries ();
   g_hash_table_add (frida_streams, stream);
 
   G_UNLOCK (frida_stdio);
@@ -1920,7 +1926,6 @@ frida_stdio_register_dir (DIR * dirp)
 {
   G_LOCK (frida_stdio);
 
-  frida_stdio_ensure_registries ();
   g_hash_table_add (frida_dirs, dirp);
 
   G_UNLOCK (frida_stdio);
@@ -1938,18 +1943,6 @@ frida_stdio_unregister_dir (DIR * dirp)
 
 #endif
 
-static void
-frida_stdio_ensure_registries (void)
-{
-  if (frida_streams != NULL)
-    return;
-
-  frida_streams = g_hash_table_new (g_direct_hash, g_direct_equal);
-#ifdef HAVE_FRIDA_DIR
-  frida_dirs = g_hash_table_new (g_direct_hash, g_direct_equal);
-#endif
-}
-
 static void
 frida_flush_all_streams (int * result)
 {

lib/payload/portal-client.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class PortalClient : Object, AgentSessionProvider {
 		public signal void resume ();

lib/payload/process.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public extern void libc_shim_prepare_to_deinit ();
 #if DARWIN

lib/payload/script-engine.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class ScriptEngine : Object {
 		public signal void message_from_script (AgentScriptId script_id, string json, Bytes? data);

lib/payload/unwind-sitter-glue.c

@@ -34,7 +34,7 @@ struct _FridaCreateArgs
 
 static FridaDyldUnwindSections * frida_get_cached_sections (GumAddress range_start, GumAddress range_end);
 static FridaDyldUnwindSections * frida_create_cached_sections (FridaCreateArgs * args);
-static gboolean frida_fill_info (const GumMachoSectionDetails * details, FridaFillInfoContext * ctx);
+static gboolean frida_fill_info (const GumDarwinSectionDetails * details, FridaFillInfoContext * ctx);
 
 void
 _frida_unwind_sitter_fill_unwind_sections (GumAddress invader_start, GumAddress invader_end, void * info)
@@ -70,7 +70,7 @@ frida_create_cached_sections (FridaCreateArgs * args)
   gsize page_size;
   gpointer header;
   GumPageProtection prot;
-  GumMachoModule * module;
+  GumDarwinModule * module;
   FridaFillInfoContext ctx;
 
   page_size = gum_query_page_size ();
@@ -87,14 +87,14 @@ frida_create_cached_sections (FridaCreateArgs * args)
   cached_sections = g_slice_new0 (FridaDyldUnwindSections);
   cached_sections->mh = header;
 
-  module = gum_macho_module_new_from_memory ("Frida", mach_task_self (), GPOINTER_TO_SIZE (header),
-      GUM_MACHO_MODULE_FLAGS_NONE, NULL);
+  module = gum_darwin_module_new_from_memory ("Frida", mach_task_self (), GPOINTER_TO_SIZE (header),
+      GUM_DARWIN_MODULE_FLAGS_NONE, NULL);
   if (module == NULL)
     return cached_sections;
 
   ctx.info = cached_sections;
   ctx.missing_info = 2;
-  gum_macho_module_enumerate_sections (module, (GumFoundMachoSectionFunc) frida_fill_info, &ctx);
+  gum_darwin_module_enumerate_sections (module, (GumFoundDarwinSectionFunc) frida_fill_info, &ctx);
 
   g_object_unref (module);
 
@@ -102,7 +102,7 @@ frida_create_cached_sections (FridaCreateArgs * args)
 }
 
 static gboolean
-frida_fill_info (const GumMachoSectionDetails * details, FridaFillInfoContext * ctx)
+frida_fill_info (const GumDarwinSectionDetails * details, FridaFillInfoContext * ctx)
 {
   if (strcmp ("__TEXT", details->segment_name) != 0)
     return TRUE;

lib/pipe/pipe-darwin.c

@@ -2,7 +2,6 @@
 
 #include "pipe-glue.h"
 
-#include <efni.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ -67,7 +66,7 @@ _frida_pipe_transport_create_backend (gchar ** local_address, gchar ** remote_ad
 
     fcntl (fd, F_SETFD, FD_CLOEXEC);
     setsockopt (fd, SOL_SOCKET, SO_NOSIGPIPE, &no_sigpipe, sizeof (no_sigpipe));
-    efni_unix_socket_tune_buffer_sizes (fd);
+    frida_unix_socket_tune_buffer_sizes (fd);
   }
 
   status = fileport_makeport (sockets[0], &local_wrapper);

lib/pipe/pipe-sddl.c

@@ -12,27 +12,14 @@ frida_pipe_get_sddl_string_for_pipe (void)
   #define DACL_ACE_EVERYONE_RW L"(A;;GRGW;;;WD)"
   #define SACL_START L"S:"
   #define SACL_ACE_LOWINTEGRITY_NORW L"(ML;;NWNR;;;LW)"
-  #define DACL_ACE_SYSTEM_RW L"(A;;GRGW;;;SY)"
-  #define DACL_ACE_ADMINS_RW L"(A;;GRGW;;;BA)"
 
   if (frida_pipe_is_windows_8_or_greater ())
   {
-    return DACL_START_NOINHERIT
-        DACL_ACE_APPCONTAINER_RW
-        DACL_ACE_EVERYONE_RW
-        DACL_ACE_SYSTEM_RW
-        DACL_ACE_ADMINS_RW
-        SACL_START
-        SACL_ACE_LOWINTEGRITY_NORW;
+    return DACL_START_NOINHERIT DACL_ACE_APPCONTAINER_RW DACL_ACE_EVERYONE_RW SACL_START SACL_ACE_LOWINTEGRITY_NORW;
   }
   else if (frida_pipe_is_windows_vista_or_greater ())
   {
-    return DACL_START_NOINHERIT
-        DACL_ACE_EVERYONE_RW
-        DACL_ACE_SYSTEM_RW
-        DACL_ACE_ADMINS_RW
-        SACL_START
-        SACL_ACE_LOWINTEGRITY_NORW;
+    return DACL_START_NOINHERIT DACL_ACE_EVERYONE_RW SACL_START SACL_ACE_LOWINTEGRITY_NORW;
   }
   else
   {

lib/pipe/pipe.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class PipeTransport : Object {
 		public string local_address {
@@ -159,7 +157,7 @@ namespace Frida {
 				UnixSocketAddressType type = UnixSocketAddress.abstract_names_supported ()
 					? UnixSocketAddressType.ABSTRACT
 					: UnixSocketAddressType.PATH;
-				var server_address = new UnixSocketAddress.with_type (path.to_utf8 (), type);
+				var server_address = new UnixSocketAddress.with_type (path, -1, type);
 
 				if (role == "server") {
 					var socket = new Socket (SocketFamily.UNIX, SocketType.STREAM, SocketProtocol.DEFAULT);

meson.build

@@ -273,15 +273,6 @@ if host_os != host_os_family
   cdata.set('HAVE_' + host_os.to_upper(), 1)
 endif
 
-host_is_prospero = host_os_family == 'freebsd' and cc.get_define('__PROSPERO__') != ''
-prospero_crt_link_args = []
-if host_is_prospero
-  cdata.set('HAVE_PROSPERO', 1)
-  vala_flags += '--define=PROSPERO'
-  prospero_crt_link_args += \
-      run_command(cc.cmd_array(), '-print-file-name=crt1.o', check: true).stdout().strip()
-endif
-
 cpu_defines = [
   ['x86', 'HAVE_I386'],
   ['x86_64', 'HAVE_I386'],
@@ -349,13 +340,9 @@ glib_options = [
   'selinux=disabled',
   'xattr=false',
   'libmount=disabled',
-  'sysprof=disabled',
   'tests=false',
   'nls=disabled',
 ]
-if host_os_family in ['darwin', 'qnx', 'none'] or host_os == 'android' or libc == 'uclibc'
-  glib_options += 'iconv=external'
-endif
 if optimize_for_prod
   glib_options += [
     'glib_debug=disabled',
@@ -412,27 +399,13 @@ json_glib_dep = dependency('json-glib-1.0', version: '>=1.8', default_options: [
   'introspection=disabled',
   'gtk_doc=disabled',
   'tests=false',
-  'nls=disabled',
 ])
-efni_dep = dependency('efni-1.0', default_options: ['default_library=static'])
-efni_libs = []
-if efni_dep.type_name() == 'internal'
-  efni_libs += subproject('efni').get_variable('efni')
-endif
-efni_vapidir = efni_dep.get_variable('vapidir', default_value: '')
-if efni_vapidir != ''
-  vala_flags += '--vapidir=' + efni_vapidir
-endif
-foreach pkg : efni_dep.get_variable('vala_packages', default_value: '').split()
-  vala_flags += '--pkg=' + pkg
-endforeach
 libsoup_dep = dependency('libsoup-3.0', default_options: [
   'default_library=static',
   'sqlite:default_library=static',
   'gssapi=disabled',
   'ntlm=disabled',
   'brotli=disabled',
-  'zstd=disabled',
   'tls_check=false',
   'introspection=disabled',
   'vapi=disabled',
@@ -446,13 +419,7 @@ if libsoup_dep.type_name() == 'internal' \
   vala_flags += '--define=HAVE_SOUP_WEBSOCKET_BACKPRESSURE'
 endif
 brotlidec_dep = dependency('libbrotlidec', default_options: ['default_library=static'])
-capstone_dep = dependency('capstone', default_options: [
-  'default_library=static',
-  'archs=all',
-  'use_arch_registration=true',
-  'x86_att_disable=true',
-  'cli=disabled',
-])
+capstone_dep = dependency('capstone', default_options: ['default_library=static'])
 if capstone_dep.type_name() != 'internal' \
     and not cc.has_function('cs_arch_register_x86', dependencies: [capstone_dep])
   add_project_arguments(
@@ -466,9 +433,9 @@ endif
 quickjs_dep = dependency('quickjs', required: get_option('barebone_backend'), default_options: [
   'default_library=static',
   'libc=false',
+  'bignum=true',
   'atomics=disabled',
-  'stack_check=' + ((host_os_family == 'none') ? 'enabled' : 'disabled'),
-  'stack_mode=' + ((host_os_family == 'none') ? 'optimize' : 'default'),
+  'stack_check=disabled',
 ])
 lzfse_dep = dependency('lzfse', required: false, default_options: ['default_library=static'])
 lzfse_from_system = false
@@ -504,7 +471,6 @@ endif
 
 if host_os == 'android'
   minizip_dep = dependency('minizip', required: false, default_options: [
-    'default_library=static',
     'zlib=enabled',
     'lzma=disabled',
   ])
@@ -561,7 +527,7 @@ have_droidy_backend = get_option('droidy_backend') \
 have_socket_backend = get_option('socket_backend').allowed()
 have_barebone_backend = get_option('barebone_backend') \
     .disable_if(not (quickjs_dep.found() and lzfse_dep.found())) \
-    .disable_auto_if(not host_docks_mobile_devices and host_os != 'android') \
+    .disable_auto_if(not host_docks_mobile_devices) \
     .allowed()
 compiler_backend_opt = get_option('compiler_backend') \
     .disable_auto_if(host_os == 'watchos')
@@ -598,11 +564,7 @@ if compiler_backend_opt.allowed()
       have_compiler_backend = true
       cdata.set('HAVE_COMPILER_BACKEND', 1)
       compiler_backend_mode = lines[1]
-      go_config = configure_file(
-        input: 'tools' / 'cgo' / 'go-config.json.in',
-        output: 'go-config.json',
-        configuration: {'GO_CONFIG': lines[2]},
-      )
+      go_config = lines[2]
 
       if compiler_backend_mode == 'c-archive'
         vala_flags += '--define=COMPILER_BACKEND_LINKED'
@@ -633,9 +595,9 @@ if compiler_backend_opt.allowed()
       endif
     endif
   elif compiler_backend_opt.enabled()
-    error('Need Go >= 1.26 to build the Compiler backend powered by ESBuild and typescript-go')
+    error('Need Go >= 1.24 to build the Compiler backend powered by ESBuild and typescript-go')
   else
-    warning('Building without Compiler backend: Go >= 1.26 not found')
+    warning('Building without Compiler backend: Go >= 1.24 not found')
   endif
 endif
 
@@ -726,32 +688,54 @@ if host_os_family == 'windows' and cc.get_argument_syntax() != 'msvc'
   openssl_options += 'asm=disabled'
 endif
 openssl_dep = dependency('openssl',
-  required: get_option('connectivity').enabled(),
+  required: have_fruity_backend or get_option('connectivity').enabled(),
   modules: cc.get_argument_syntax() == 'msvc' ? ['OpenSSL::SSL'] : [],
   default_options: openssl_options,
 )
 
-idun_libs = []
-have_idund_blob = false
 if have_fruity_backend
-  idun_dep = dependency('idun-1.0', default_options: ['default_library=static'])
-  backend_reqs_private += 'idun-1.0'
-  if idun_dep.type_name() == 'internal'
-    idun_sp = subproject('idun')
-    idun_libs += idun_sp.get_variable('idun')
-    if assets_mode == 'embedded' and idun_sp.get_variable('build_daemon')
-      idund_raw = idun_sp.get_variable('idund')
-      have_idund_blob = true
-      vala_flags += '--define=HAVE_IDUND_BLOB'
+  backend_deps_private += dependency('libnghttp2', default_options: ['default_library=static'])
+  backend_reqs_private += 'libnghttp2'
+
+  if host_os != 'macos'
+    backend_deps_private += dependency('libngtcp2', default_options: ['default_library=static'])
+    backend_reqs_private += 'libngtcp2'
+
+    ngtcp2_crypto_quictls_dep = dependency('libngtcp2_crypto_quictls', required: false, default_options: ['default_library=static'])
+    if ngtcp2_crypto_quictls_dep.found()
+      backend_deps_private += ngtcp2_crypto_quictls_dep
+      backend_reqs_private += 'libngtcp2_crypto_quictls'
+    else
+      backend_deps_private += dependency('libngtcp2_crypto_ossl', default_options: ['default_library=static'])
+      backend_reqs_private += 'libngtcp2_crypto_ossl'
+      vala_flags += '--define=HAVE_NGTCP2_CRYPTO_OSSL'
     endif
+
+    if have_frida_glib
+      libusb_dep = dependency('libusb-1.0', default_options: ['default_library=static'])
+    else
+      subproject('libusb', default_options: ['default_library=static'])
+      libusb_dep = dependency('libusb-1.0', default_options: ['default_library=static'])
+    endif
+    backend_deps_private += libusb_dep
+    backend_reqs_private += 'libusb-1.0'
+
+    lwip_options = [
+      'default_library=static',
+      'ipv4=disabled',
+      'ipv6=enabled',
+      'dns=disabled',
+      'arp=disabled',
+      'ethernet=enabled',
+    ]
+    if optimize_for_prod
+      lwip_options += 'lwip_debug=disabled'
+    else
+      lwip_options += 'lwip_debug=enabled'
+    endif
+    backend_deps_private += dependency('lwip', default_options: lwip_options)
+    backend_reqs_private += 'lwip'
   endif
-  idun_vapidir = idun_dep.get_variable('vapidir', default_value: '')
-  if idun_vapidir != ''
-    vala_flags += '--vapidir=' + idun_vapidir
-  endif
-  foreach pkg : idun_dep.get_variable('vala_packages', default_value: '').split()
-    vala_flags += '--pkg=' + pkg
-  endforeach
 endif
 
 if quickjs_dep.found()
@@ -773,20 +757,14 @@ if host_os_family == 'linux' and have_local_backend
   backend_reqs_private += 'libbpf'
 endif
 
-if host_os_family == 'darwin' \
-    or (host_os_family == 'freebsd' and not host_is_prospero) \
-    or (host_os_family == 'linux' and cc.has_function('openpty', prefix: '#include <pty.h>'))
+if host_os_family in ['darwin', 'freebsd'] or (host_os_family == 'linux' and cc.has_function('openpty', prefix: '#include <pty.h>'))
   vala_flags += '--define=HAVE_OPENPTY'
 endif
 
 if host_os == 'android'
   termux_elf_cleaner = find_program('termux-elf-cleaner', native: true)
-  selinux_options = [
-    'default_library=static',
-    'regex=disabled',
-  ]
-  libselinux_dep = dependency('libselinux', version: '>=3.0', default_options: selinux_options)
-  libsepol_dep = dependency('libsepol', version: '>=3.0', default_options: selinux_options)
+  libselinux_dep = dependency('libselinux', version: '>=3.0', default_options: ['default_library=static'])
+  libsepol_dep = dependency('libsepol', version: '>=3.0', default_options: ['default_library=static'])
   backend_deps_private += [libselinux_dep, libsepol_dep]
   backend_reqs_private += ['libselinux', 'libsepol']
 else
@@ -901,19 +879,13 @@ if host_os_family == 'darwin'
 endif
 if host_os == 'macos'
   backend_libs_private += ['-Wl,-framework,AppKit']
-  if have_compiler_backend
-    backend_libs_private += ['-Wl,-framework,CoreServices']
-  endif
 endif
 if host_os in ['ios', 'tvos']
   backend_libs_private += ['-Wl,-framework,CoreGraphics', '-Wl,-framework,UIKit']
 endif
-if host_os_family == 'freebsd' and not host_is_prospero
+if host_os_family == 'freebsd'
   backend_libs_private += ['-lutil']
 endif
-if host_is_prospero
-  backend_libs_private += ['-lSceSystemService', '-lSceUserService']
-endif
 
 if get_option('devkits').length() != 0
   if get_option('default_library') != 'static'
@@ -980,7 +952,7 @@ if host_os_family == 'darwin'
   executable_no_exports_link_args = ['-Wl,-exported_symbols_list,' + script]
   executable_no_exports_link_depends = [script]
 elif host_os_family != 'windows'
-  script_name = (host_os == 'freebsd' and not host_is_prospero) ? 'executable-no-exports-freebsd.version' : 'executable-no-exports.version'
+  script_name = (host_os == 'freebsd') ? 'executable-no-exports-freebsd.version' : 'executable-no-exports.version'
   script = meson.project_source_root() / 'tools' / script_name
   executable_no_exports_link_args = ['-Wl,--version-script,' + script]
   executable_no_exports_link_depends = [script]
@@ -990,13 +962,12 @@ compile_js_agent = files('tools' / 'compile-js-agent.py')
 
 mapper_opt = get_option('mapper')
 if mapper_opt.auto()
-  have_mapper = host_os_family in ['windows', 'darwin', 'linux']
+  have_mapper = host_os_family == 'darwin'
 else
   have_mapper = mapper_opt.enabled()
 endif
 if have_mapper
   cdata.set('HAVE_MAPPER', 1)
-  vala_flags += '--define=HAVE_MAPPER'
 endif
 
 configure_file(

server/frida-server.xcent

@@ -359,11 +359,5 @@
 	<true/>
 	<key>com.apple.private.amfi.can-execute-cdhash</key>
 	<true/>
-	<key>com.apple.private.FairPlayIOKitUserClient.access</key>
-	<true/>
-	<key>com.apple.security.iokit-user-client-class</key>
-	<array>
-		<string>com_apple_driver_FairPlayIOKitUserClient</string>
-	</array>
 </dict>
 </plist>

server/meson.build

@@ -19,7 +19,7 @@ if host_os_family == 'darwin'
   extra_link_args += ['-Wl,-exported_symbols_list,' + meson.current_source_dir() / symlist]
   extra_link_depends += [symlist]
 elif host_os_family != 'windows'
-  symscript = (host_os == 'freebsd' and not host_is_prospero) ? 'frida-server-freebsd.version' : 'frida-server.version'
+  symscript = (host_os == 'freebsd') ? 'frida-server-freebsd.version' : 'frida-server.version'
   extra_link_args += ['-Wl,--version-script,' + meson.current_source_dir() / symscript]
   extra_link_depends += [symscript]
 endif

server/server-glue.c

@@ -29,8 +29,6 @@ void CFLog (CFLogLevel level, CFStringRef format, ...);
 
 #elif defined (HAVE_ANDROID)
 # include <android/log.h>
-#elif defined (HAVE_PROSPERO)
-# include <ps5/klog.h>
 #else
 # include <stdio.h>
 #endif
@@ -139,13 +137,6 @@ frida_server_on_log_message (const gchar * log_domain, GLogLevelFlags log_level,
   }
 
   __android_log_write (priority, log_domain, message);
-#elif defined (HAVE_PROSPERO)
-  (void) user_data;
-
-  if (log_domain != NULL)
-    klog_printf ("%s: %s\n", log_domain, message);
-  else
-    klog_printf ("%s\n", message);
 #else
   FILE * file = NULL;
   const gchar * severity = NULL;

server/server.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida.Server {
 	private static Application application;
 
@@ -14,6 +12,7 @@ namespace Frida.Server {
 	private static string? directory = null;
 #if !WINDOWS && !TVOS
 	private static bool daemonize = false;
+	private static string? output_path = null;
 #endif
 	private static string? softener_flavor_str = null;
 	private static bool enable_preload = true;
@@ -44,6 +43,7 @@ namespace Frida.Server {
 		{ "directory", 'd', 0, OptionArg.STRING, ref directory, "Store binaries in DIRECTORY", "DIRECTORY" },
 #if !WINDOWS && !TVOS
 		{ "daemonize", 'D', 0, OptionArg.NONE, ref daemonize, "Detach and become a daemon", null },
+		{ "output", 'o', 0, OptionArg.FILENAME, ref output_path, "Redirect output to FILE", "FILE" },
 #endif
 		{ "policy-softener", 0, 0, OptionArg.STRING, ref softener_flavor_str, "Select policy softener", "system|internal" },
 		{ "disable-preload", 'P', OptionFlags.REVERSE, OptionArg.NONE, ref enable_preload, "Disable preload optimization", null },
@@ -80,6 +80,13 @@ namespace Frida.Server {
 
 		Environment.set_verbose_logging_enabled (verbose);
 
+#if !WINDOWS && !TVOS
+		if (output_path != null && !daemonize) {
+			if (!redirect_output_to (output_path))
+				return 6;
+		}
+#endif
+
 		EndpointParameters endpoint_params;
 		try {
 			endpoint_params = new EndpointParameters (listen_address, 0, parse_certificate (certpath), origin,
@@ -158,12 +165,15 @@ namespace Frida.Server {
 					Posix.setsid ();
 
 					var null_in = Posix.open ("/dev/null", Posix.O_RDONLY);
-					var null_out = Posix.open ("/dev/null", Posix.O_WRONLY);
 					Posix.dup2 (null_in, Posix.STDIN_FILENO);
-					Posix.dup2 (null_out, Posix.STDOUT_FILENO);
-					Posix.dup2 (null_out, Posix.STDERR_FILENO);
 					Posix.close (null_in);
-					Posix.close (null_out);
+
+					if (output_path == null || !redirect_output_to (output_path)) {
+						var null_out = Posix.open ("/dev/null", Posix.O_WRONLY);
+						Posix.dup2 (null_out, Posix.STDOUT_FILENO);
+						Posix.dup2 (null_out, Posix.STDERR_FILENO);
+						Posix.close (null_out);
+					}
 				}
 
 				var status = new uint8[1];
@@ -220,6 +230,22 @@ namespace Frida.Server {
 		return application.run ();
 	}
 
+#if !WINDOWS && !TVOS
+	private static bool redirect_output_to (string path) {
+		int fd = Posix.open (path, Posix.O_WRONLY | Posix.O_CREAT | Posix.O_APPEND, 0644);
+		if (fd == -1) {
+			printerr ("Unable to open “%s”: %s\n", path, Posix.strerror (Posix.errno));
+			return false;
+		}
+
+		Posix.dup2 (fd, Posix.STDOUT_FILENO);
+		Posix.dup2 (fd, Posix.STDERR_FILENO);
+		Posix.close (fd);
+
+		return true;
+	}
+#endif
+
 	namespace Environment {
 		public extern void init ();
 		public extern void set_verbose_logging_enabled (bool enabled);
@@ -276,6 +302,15 @@ namespace Frida.Server {
 				return false;
 			});
 
+#if !WINDOWS && !TVOS
+			if (!daemonize)
+				process_commands.begin ();
+#elif !WINDOWS
+			process_commands.begin ();
+#endif
+
+			start_alive_task_dumper ();
+
 			exit_code = 0;
 
 			loop.run ();
@@ -283,6 +318,45 @@ namespace Frida.Server {
 			return exit_code;
 		}
 
+#if !WINDOWS
+		// TEMPORARY DEBUG HACK: type “t” + Enter to dump alive GTasks.
+		private async void process_commands () {
+			var input = new DataInputStream (new UnixInputStream (Posix.STDIN_FILENO, false));
+
+			while (true) {
+				string? line;
+				try {
+					line = yield input.read_line_async (Priority.DEFAULT, io_cancellable);
+				} catch (GLib.Error e) {
+					return;
+				}
+				if (line == null)
+					return;
+
+				switch (line.strip ()) {
+					case "t":
+						g_task_print_alive_tasks ();
+						break;
+					case "":
+						break;
+					default:
+						printerr ("Unknown command; try “t”\n");
+						break;
+				}
+			}
+		}
+#endif
+
+		// TEMPORARY DEBUG HACK: dump alive GTasks every 30 seconds.
+		private void start_alive_task_dumper () {
+			var source = new TimeoutSource.seconds (30);
+			source.set_callback (() => {
+				GLib.info ("%s", g_task_describe_alive_tasks ());
+				return Source.CONTINUE;
+			});
+			source.attach (MainContext.default ());
+		}
+
 		private async void start () {
 			try {
 				if (device_id != null && device_id != "local") {
@@ -357,4 +431,11 @@ namespace Frida.Server {
 
 		return new TlsCertificate.from_file (path);
 	}
+
+	// TEMPORARY DEBUG HACK: only present when GLib is built with G_ENABLE_DEBUG.
+	[CCode (cname = "g_task_print_alive_tasks")]
+	private extern void g_task_print_alive_tasks ();
+
+	[CCode (cname = "g_task_describe_alive_tasks")]
+	private extern string g_task_describe_alive_tasks ();
 }

src/agent-container.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class AgentContainer : Object, AgentSessionProvider {
 		public DBusConnection connection {
@@ -11,7 +9,9 @@ namespace Frida {
 		[CCode (has_target = false)]
 		private delegate void AgentMainFunc (string data, ref UnloadPolicy unload_policy, void * injector_state);
 		private AgentMainFunc main_impl;
-#if !LINUX
+#if LINUX
+		private FileDescriptor agent_ctrlfd_for_peer;
+#else
 		private PipeTransport transport;
 #endif
 		private string transport_address;
@@ -38,7 +38,8 @@ namespace Frida {
 			if (Posix.socketpair (Posix.AF_UNIX, Posix.SOCK_STREAM, 0, agent_ctrlfds) != 0)
 				throw new Error.NOT_SUPPORTED ("Unable to allocate socketpair");
 			var agent_ctrlfd = new FileDescriptor (agent_ctrlfds[0]);
-			container.transport_address = "socket:%d".printf (agent_ctrlfds[1]);
+			container.agent_ctrlfd_for_peer = new FileDescriptor (agent_ctrlfds[1]);
+			container.transport_address = "";
 
 			try {
 				Socket socket = new Socket.from_fd (agent_ctrlfd.handle);
@@ -113,10 +114,18 @@ namespace Frida {
 
 		private bool run () {
 			UnloadPolicy unload_policy = IMMEDIATE;
+			void * injector_state = null;
+
+#if LINUX
+			var s = LinuxInjectorState ();
+			s.frida_ctrlfd = -1;
+			s.agent_ctrlfd = agent_ctrlfd_for_peer.steal ();
+			injector_state = &s;
+#endif
 
 			string agent_parameters = transport_address + "|exit-monitor:off|thread-suspend-monitor:off";
 
-			main_impl (agent_parameters, ref unload_policy, null);
+			main_impl (agent_parameters, ref unload_policy, injector_state);
 
 			return true;
 		}

src/android-helper/client.vala

@@ -1,5 +1,3 @@
-using Efni;
-
 namespace Frida {
 	public sealed class AndroidHelperClient : Object {
 		public AndroidHelperTransport transport {
@@ -7,92 +5,10 @@ namespace Frida {
 			construct;
 		}
 
-		private AdbShellSession? shell;
-
 		public AndroidHelperClient (AndroidHelperTransport transport) {
 			Object (transport: transport);
 		}
 
-		public static async AndroidHelperClient open (string serial, Cancellable? cancellable) throws Error, IOError {
-			string instance_id = Uuid.string_random ().replace ("-", "");
-			string helper_path = "/data/local/tmp/frida-helper-" + instance_id + ".dex";
-
-			var helper_dex = new MemoryInputStream.from_bytes (
-				new Bytes.static (Frida.Data.Android.get_helper_dex_blob ().data));
-			var helper_meta = new AdbFileMetadata ();
-			helper_meta.mode = 0100644;
-			helper_meta.time_modified = new DateTime.now_utc ();
-			yield AdbFileSync.send (helper_dex, helper_meta, helper_path, serial, cancellable);
-
-			var shell = new AdbShellSession ();
-			try {
-				var output = new StringBuilder ();
-				bool waiting = false;
-				var output_handler = shell.output.connect ((pipe, bytes) => {
-					if (pipe == STDOUT) {
-						output.append ((string) bytes.get_data ());
-						if (waiting)
-							open.callback ();
-					}
-				});
-				try {
-					yield shell.open (serial, cancellable);
-
-					shell.send_command (("CLASSPATH=%s app_process /data/local/tmp " +
-							"--nice-name=re.frida.helper re.frida.Helper %s; rm -f %s; echo BYE.")
-						.printf (helper_path, instance_id, helper_path));
-
-					while (!output.str.has_prefix ("READY.\n")) {
-						waiting = true;
-						yield;
-						waiting = false;
-
-						if (output.str.has_prefix ("BYE.\n"))
-							throw new Error.NOT_SUPPORTED ("Unable to start helper");
-					}
-				} finally {
-					shell.disconnect (output_handler);
-				}
-
-				var client = yield AdbClient.open (cancellable);
-				try {
-					yield client.request ("host:transport:" + serial, cancellable);
-					yield client.request_protocol_change ("localabstract:/frida-helper-" + instance_id,
-						cancellable);
-				} catch (GLib.Error e) {
-					client.close.begin ();
-					throw e;
-				}
-
-				var helper = new AndroidHelperClient (new AndroidHelperStreamTransport (client.stream));
-				helper.shell = shell;
-				helper.transport.closed.connect (helper.release_shell);
-
-				return helper;
-			} catch (GLib.Error e) {
-				shell.close.begin ();
-				if (e is IOError.CANCELLED)
-					throw (IOError) e;
-				throw new Error.NOT_SUPPORTED ("%s", e.message);
-			}
-		}
-
-		public async void close (Cancellable? cancellable) throws IOError {
-			yield transport.close (cancellable);
-
-			if (shell != null) {
-				yield shell.close (cancellable);
-				shell = null;
-			}
-		}
-
-		private void release_shell () {
-			if (shell != null) {
-				shell.close.begin ();
-				shell = null;
-			}
-		}
-
 		public async HostApplicationInfo get_frontmost_application (FrontmostQueryOptions options,
 				Cancellable? cancellable) throws Error, IOError {
 			var stanza = new Json.Builder ();
@@ -492,13 +408,13 @@ namespace Frida {
 	}
 
 	public interface AndroidHelperTransport : Object {
-		public signal void closed ();
-
 		public abstract async void close (Cancellable? cancellable) throws IOError;
 		public abstract async Json.Node request (Json.Node stanza, Cancellable? cancellable) throws Error, IOError;
 	}
 
 	public sealed class AndroidHelperStreamTransport : Object, AndroidHelperTransport {
+		public signal void closed ();
+
 		public IOStream stream {
 			get;
 			construct;

src/android-helper/re/frida/HelperBackend.java

@@ -18,6 +18,7 @@ import android.graphics.drawable.Drawable;
 import android.os.Looper;
 import android.os.Process;
 import android.util.Base64;
+import android.util.Base64OutputStream;
 
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -644,7 +645,7 @@ public class HelperBackend {
 					"Unable to find application with identifier '" + pkgName + "'" +
 					((uid != 0) ? " belonging to uid " + uid : ""));
 		} catch (Throwable e) {
-			return error("NOT_SUPPORTED", describe(e));
+			return error("NOT_SUPPORTED", e.toString());
 		}
 	}
 
@@ -696,13 +697,10 @@ public class HelperBackend {
 				intent.setClassName(pkgName, activity);
 			}
 
-			String callingPackage = ourCallingPackage();
-
-			int code = (mStartActivityAsUser != null)
-					? startActivityViaAtm(intent, uid, callingPackage)
-					: startActivityViaAm(intent, uid, callingPackage);
-			if (code < 0 || code > 3)
-				return error("NOT_SUPPORTED", "Activity launch was refused (start code " + code + ")");
+			if (mStartActivityAsUser != null)
+				startActivityViaAtm(intent, uid, pkgName);
+			else
+				startActivityViaAm(intent, uid, pkgName);
 
 			return okVoid();
 		} catch (NameNotFoundException e) {
@@ -710,18 +708,11 @@ public class HelperBackend {
 					"Unable to find application with identifier '" + pkgName + "'" +
 					((uid != 0) ? " belonging to uid " + uid : ""));
 		} catch (Throwable e) {
-			return error("NOT_SUPPORTED", describe(e));
+			return error("NOT_SUPPORTED", e.toString());
 		}
 	}
 
-	private String ourCallingPackage() {
-		String[] packages = mPackageManager.getPackagesForUid(Process.myUid());
-		if (packages != null && packages.length > 0)
-			return packages[0];
-		return "com.android.shell";
-	}
-
-	private int startActivityViaAtm(Intent intent, int uid, String callingPackage) throws Exception {
+	private void startActivityViaAtm(Intent intent, int uid, String callingPackage) throws Exception {
 		if (mStartActivityAsUser == null)
 			throw new UnsupportedOperationException("startActivityAsUser unavailable");
 
@@ -738,11 +729,10 @@ public class HelperBackend {
 		args[mStartActivityCallingPackageIndex] = callingPackage;
 		args[mStartActivityUserIdIndex] = (uid != 0) ? uid : 0;
 
-		Object result = mStartActivityAsUser.invoke(mActivityTaskManager, args);
-		return (result instanceof Integer) ? (Integer) result : 0;
+		mStartActivityAsUser.invoke(mActivityTaskManager, args);
 	}
 
-	private int startActivityViaAm(Intent intent, int uid, String callingPackage) throws Exception {
+	private void startActivityViaAm(Intent intent, int uid, String callingPackage) throws Exception {
 		if (mStartActivityLegacy == null)
 			throw new UnsupportedOperationException("legacy startActivity unavailable");
 
@@ -763,8 +753,7 @@ public class HelperBackend {
 		if (mLegacyStartUserIdIndex != -1)
 			args[mLegacyStartUserIdIndex] = (uid != 0) ? uid : 0;
 
-		Object result = mStartActivityLegacy.invoke(mActivityManagerService, args);
-		return (result instanceof Integer) ? (Integer) result : 0;
+		mStartActivityLegacy.invoke(mActivityManagerService, args);
 	}
 
 	private JSONArray sendBroadcast(JSONArray request) throws JSONException {
@@ -793,7 +782,7 @@ public class HelperBackend {
 					"Unable to find application with identifier '" + pkgName + "'" +
 					((uid != 0) ? " belonging to uid " + uid : ""));
 		} catch (Throwable e) {
-			return error("NOT_SUPPORTED", describe(e));
+			return error("NOT_SUPPORTED", e.toString());
 		}
 	}
 
@@ -821,7 +810,7 @@ public class HelperBackend {
 					"Unable to find application with identifier '" + pkgName + "'" +
 					((uid != 0) ? " belonging to uid " + uid : ""));
 		} catch (Throwable e) {
-			return error("NOT_SUPPORTED", describe(e));
+			return error("NOT_SUPPORTED", e.toString());
 		}
 	}
 
@@ -848,7 +837,7 @@ public class HelperBackend {
 
 			return okBoolean(false);
 		} catch (Throwable e) {
-			return error("NOT_SUPPORTED", describe(e));
+			return error("NOT_SUPPORTED", e.toString());
 		}
 	}
 
@@ -880,17 +869,6 @@ public class HelperBackend {
 		return r;
 	}
 
-	private static String describe(Throwable t) {
-		Throwable cause = t;
-		while (cause instanceof InvocationTargetException && cause.getCause() != null)
-			cause = cause.getCause();
-
-		String message = cause.getMessage();
-		return (message != null)
-				? cause.getClass().getName() + ": " + message
-				: cause.getClass().getName();
-	}
-
 	private String getFrontmostPackageName() {
 		List<ActivityManager.RunningTaskInfo> tasks = mActivityManager.getRunningTasks(1);
 		if (tasks.isEmpty()) {
@@ -981,10 +959,10 @@ public class HelperBackend {
 		icon.setBounds(0, 0, width, height);
 		icon.draw(canvas);
 
-		ByteArrayOutputStream png = new ByteArrayOutputStream();
-		bitmap.compress(CompressFormat.PNG, 100, png);
+		ByteArrayOutputStream output = new ByteArrayOutputStream();
+		bitmap.compress(CompressFormat.PNG, 100, new Base64OutputStream(output, Base64.NO_WRAP));
 
-		return Base64.encodeToString(png.toByteArray(), Base64.NO_WRAP);
+		return output.toString();
 	}
 
 	private Map<String, List<RunningAppProcessInfo>> getAppProcesses() {

src/api/generate.py

@@ -21,19 +21,10 @@ CORE_TAG_FIELD = f"{{{CORE_NAMESPACE}}}field"
 CORE_TAG_CONSTRUCTOR = f"{{{CORE_NAMESPACE}}}constructor"
 CORE_TAG_METHOD = f"{{{CORE_NAMESPACE}}}method"
 
-INTERNAL_INTERFACES = {
-    "Frida.HostSessionHub",
-    "Frida.AgentMessageSink",
-    "FridaBase.AgentMessageSink",
-    "Json.Serializable",
-}
-
-OBJECT_TYPE_PATTERN = re.compile(r"\bpublic\s+(sealed |abstract )?(class|interface)\s+(\w+)\b")
+OBJECT_TYPE_PATTERN = re.compile(r"\bpublic\s+(sealed )?(class|interface)\s+(\w+)\b")
 
 TOPLEVEL_NAMES = [
     "frida.vala",
-    "linux-kernel-image.vala",
-    "xnu-kernelcache.vala",
     "package-manager.vala",
     "control-service.vala",
     "portal-service.vala",
@@ -140,7 +131,6 @@ def emit_header(api, output_dir):
 
         output_header_file.write("\n\n/* Library lifetime */")
         output_header_file.write("\nvoid frida_init (void);")
-        output_header_file.write("\nvoid frida_init_with_runtime (FridaRuntime runtime);")
         output_header_file.write("\nvoid frida_shutdown (void);")
         output_header_file.write("\nvoid frida_deinit (void);")
         output_header_file.write("\nGMainContext * frida_get_main_context (void);")
@@ -240,10 +230,10 @@ def emit_gir(api: ApiSpec, core_gir: str, base_gir: str, output_dir: Path, docs:
         for elem in core_elements + base_elements:
             if tag_name == "class":
                 for child in list(elem):
-                    if (child.tag == CORE_TAG_IMPLEMENTS and child.get("name") in INTERNAL_INTERFACES) \
+                    if (child.tag == CORE_TAG_IMPLEMENTS and child.get("name") in {"Frida.HostSessionHub", "Frida.AgentMessageSink",
+                                                                                   "FridaBase.AgentMessageSink"}) \
                             or child.tag == CORE_TAG_FIELD \
-                            or child.get("name").startswith("_") \
-                            or (child.tag == CORE_TAG_CONSTRUCTOR and is_async_constructor(child)):
+                            or child.get("name").startswith("_"):
                         elem.remove(child)
             merged_namespace.append(elem)
 
@@ -251,13 +241,6 @@ def emit_gir(api: ApiSpec, core_gir: str, base_gir: str, output_dir: Path, docs:
     merge_and_transform_elements("interface", object_type_names)
     merge_and_transform_elements("enumeration", enum_type_names | error_type_names)
 
-    function_names = {func.name for func in api.functions}
-    for source_root in [core_root, base_root]:
-        source_namespace = source_root.find("namespace", GIR_NAMESPACES)
-        for function in source_namespace.findall("function", GIR_NAMESPACES):
-            if function.get("name") in function_names:
-                merged_namespace.append(function)
-
     for source_root in [core_root, base_root]:
         for record in source_root.findall(".//record", GIR_NAMESPACES):
             owner = record.get(f"{{{GLIB_NAMESPACE}}}is-gtype-struct-for")
@@ -294,12 +277,6 @@ def emit_gir(api: ApiSpec, core_gir: str, base_gir: str, output_dir: Path, docs:
 def filter_elements(elements: List[ET.Element], spec_set: Set[str]):
     return [elem for elem in elements if elem.get("name") in spec_set]
 
-def is_async_constructor(constructor: ET.Element) -> bool:
-    for type_elem in constructor.iter(f"{{{CORE_NAMESPACE}}}type"):
-        if type_elem.get("name") == "Gio.Cancellable":
-            return True
-    return False
-
 @dataclass
 class DocComment:
     body: str
@@ -627,14 +604,10 @@ def emit_vapi(api, output_dir):
         output_vapi_file.write("[CCode (cheader_filename = \"frida-core.h\", cprefix = \"Frida\", lower_case_cprefix = \"frida_\")]")
         output_vapi_file.write("\nnamespace Frida {")
         output_vapi_file.write("\n\tpublic static void init ();")
-        output_vapi_file.write("\n\tpublic static void init_with_runtime (Frida.Runtime runtime);")
         output_vapi_file.write("\n\tpublic static void shutdown ();")
         output_vapi_file.write("\n\tpublic static void deinit ();")
         output_vapi_file.write("\n\tpublic static unowned GLib.MainContext get_main_context ();")
 
-        for delegate in referenced_delegates(api):
-            output_vapi_file.write("\n\t" + delegate)
-
         for object_type in api.object_types:
             output_vapi_file.write("\n\n\t%s" % object_type.vapi_declaration)
             sections = []
@@ -669,35 +642,6 @@ def emit_vapi(api, output_dir):
         output_deps_file.write("glib-2.0\n")
         output_deps_file.write("gobject-2.0\n")
         output_deps_file.write("gio-2.0\n")
-        output_deps_file.write("json-glib-1.0\n")
-
-def referenced_delegates(api) -> List[str]:
-    members = []
-    for object_type in api.object_types:
-        members.extend(object_type.vapi_properties)
-        members.extend(object_type.vapi_methods)
-        members.extend(object_type.vapi_signals)
-        if object_type.vapi_constructor is not None:
-            members.append(object_type.vapi_constructor)
-    for func in api.functions:
-        members.append(func.vapi_declaration)
-    text = "\n".join(members)
-
-    return [declaration for name, declaration in api.delegates
-            if re.search(r"\bFrida\." + name + r"\b", text) is not None]
-
-def strip_internal_interfaces(declaration: str) -> str:
-    head, sep, rest = declaration.partition(" : ")
-    if not sep:
-        return declaration
-
-    bases_part, brace_sep, tail = rest.partition("{")
-
-    kept = [b.strip() for b in bases_part.split(",") if b.strip() not in INTERNAL_INTERFACES]
-    if not kept:
-        return f"{head} {brace_sep}{tail}"
-
-    return f"{head} : {', '.join(kept)} {brace_sep}{tail}"
 
 def emit_symbol_maps_from_source(output_dir: Path):
     with OutputFile(output_dir / 'frida-core.version') as f:
@@ -856,7 +800,8 @@ def parse_api(frida_version, frida_version_components, api_version, toplevel_cod
                 if stripped_line == "}":
                     ignoring = False
             else:
-                if stripped_line.startswith("public class Promise") \
+                if stripped_line.startswith("public abstract") \
+                        or stripped_line.startswith("public class Promise") \
                         or stripped_line.startswith("public interface Future") \
                         or stripped_line.startswith("public class CF"):
                     ignoring = True
@@ -876,7 +821,7 @@ def parse_api(frida_version, frida_version_components, api_version, toplevel_cod
                         ignoring = True
                     else:
                         current_object_type = object_type_by_name[name]
-                        current_object_type.vapi_declaration = strip_internal_interfaces(stripped_line)
+                        current_object_type.vapi_declaration = stripped_line
                 elif stripped_line == "}":
                     current_enum = None
                     current_object_type = None
@@ -905,26 +850,17 @@ def parse_api(frida_version, frida_version_components, api_version, toplevel_cod
             enum.vapi_declaration = m.group(1)
             enum.vapi_members.extend([line.lstrip() for line in m.group(2).strip().split("\n")])
 
-    functions = [f for f in parse_vapi_functions(core_vapi + base_vapi) if function_is_public(f.name)]
+    functions = [f for f in parse_vapi_functions(base_vapi) if function_is_public(f.name)]
     for f in functions:
-        m = re.search(r"^(?:VALA_EXTERN )?[\w\*]+ frida_{}.+?;".format(f.name), all_headers, re.MULTILINE | re.DOTALL)
-        prototype = beautify_cprototype(m.group(0))
-        if prototype.startswith("VALA_EXTERN "):
-            prototype = prototype[12:]
-        f.c_prototype = prototype
+        m = re.search(r"^[\w\*]+ frida_{}.+?;".format(f.name), all_headers, re.MULTILINE | re.DOTALL)
+        f.c_prototype = beautify_cprototype(m.group(0))
 
-    delegates = [(m.group(1), m.group(0).strip())
-                 for m in re.finditer(r"^\tpublic delegate .+?\b(\w+) \(.*\);$", core_vapi + base_vapi, re.MULTILINE)]
-
-    return ApiSpec(frida_version, frida_version_components, api_version, object_types, functions, enum_types, error_types,
-                   delegates)
+    return ApiSpec(frida_version, frida_version_components, api_version, object_types, functions, enum_types, error_types)
 
 def function_is_public(name):
     return not name.startswith("_") and \
             not name.startswith("throw_") and \
-            name not in MANUALLY_DECLARED_FUNCTIONS and \
             name not in {
-                "on_pending_garbage",
                 "generate_certificate",
                 "get_dbus_context",
                 "invalidate_dbus_context",
@@ -945,17 +881,6 @@ def function_is_public(name):
                 "make_stdio_pipe",
             }
 
-MANUALLY_DECLARED_FUNCTIONS = {
-    "init",
-    "init_with_runtime",
-    "shutdown",
-    "deinit",
-    "get_main_context",
-    "unref",
-    "version",
-    "version_string",
-}
-
 def parse_vala_object_types(source) -> List[ApiObjectType]:
     return [ApiObjectType(m.group(3), m.group(2)) for m in OBJECT_TYPE_PATTERN.finditer(source, re.MULTILINE)]
 
@@ -971,7 +896,6 @@ class ApiSpec:
     functions: List[ApiFunction]
     enum_types: List[ApiEnum]
     error_types: List[ApiEnum]
-    delegates: List[tuple]
 
 class ApiEnum:
     def __init__(self, name):

src/api/meson.build

@@ -132,20 +132,13 @@ if not is_shared
 endif
 core_public_dep = declare_dependency(kwargs: core_public_dep_kwargs)
 
-core_public_reqs = ['glib-2.0', 'gobject-2.0', 'gio-2.0', 'json-glib-1.0']
-if host_os_family == 'windows'
-  core_public_reqs += 'gio-windows-2.0'
-else
-  core_public_reqs += 'gio-unix-2.0'
-endif
-
 pkg = import('pkgconfig')
 pkg_kwargs = {
   'filebase': f'frida-core-@api_version@',
   'name': 'Frida Core Library',
   'version': frida_version,
   'description': 'Instrumentation toolkit for developers, reverse-engineers, and security researchers',
-  'requires': core_public_reqs,
+  'requires': ['glib-2.0', 'gobject-2.0', 'gio-2.0', 'json-glib-1.0'],
   'subdirs': f'frida-@api_version@',
   'extra_cflags': ['-I${frida_includedir}'],
   'variables': installed_variables,
@@ -158,7 +151,7 @@ if is_shared
 else
   pkg_kwargs += {
     'libraries': core_public_lib,
-    'requires_private': ['gmodule-2.0', 'gee-0.8', 'libsoup-3.0', 'efni-1.0', 'frida-gum-1.0', 'frida-gumjs-inspector-1.0', 'libbrotlidec'] + backend_reqs_private,
+    'requires_private': ['gmodule-2.0', 'gee-0.8', 'libsoup-3.0', 'frida-gum-1.0', 'frida-gumjs-inspector-1.0', 'libbrotlidec'] + backend_reqs_private,
     'libraries_private': backend_libs_private,
   }
 endif

src/barebone/agent/Cargo.lock

@@ -13,9 +13,9 @@ dependencies = [
 
 [[package]]
 name = "bindgen"
-version = "0.72.1"
+version = "0.72.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
+checksum = "4f72209734318d0b619a5e0f5129918b848c416e122a3c4ce054e03cb87b726f"
 dependencies = [
  "bitflags",
  "cexpr",
@@ -63,9 +63,9 @@ checksum = "9555578bc9e57714c812a1f84e4fc5b4d21fcb063490c624de019f7464c91268"
 
 [[package]]
 name = "clang-sys"
-version = "1.9.1"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "157a8ba7b480713b56f4c09fd13fc3e0a22a5dfab8097ba61cbc5feef950788a"
+checksum = "0b023947811758c97c59bf9d1c188fd619ad4718dcaa767947df1cadb14f39f4"
 dependencies = [
  "glob",
  "libc",

src/barebone/agent/Cargo.toml

@@ -4,31 +4,6 @@ version = "1.0.0"
 edition = "2024"
 build = "build.rs"
 
-[lib]
-name = "frida_barebone_agent"
-path = "src/lib.rs"
-crate-type = ["rlib", "staticlib"]
-
-# The XNU flavour is a freestanding executable the host injects and calls into.
-# The Linux flavour is the staticlib above, linked into a .ko by linux/Kbuild.
-[[bin]]
-name = "frida-barebone-agent"
-path = "src/main.rs"
-required-features = ["blob"]
-
-[features]
-# Flavors the host injects and calls into, as opposed to the module Linux loads.
-blob = []
-# The XNU flavour itself, and the two ways it is packaged: a blob the host injects
-# into a running kernel, and a kext that kernel loads.
-xnu-core = []
-xnu = ["xnu-core", "blob"]
-xnu-kext = ["xnu-core"]
-win9x = ["blob"]
-winnt = ["blob"]
-linux = []
-linux-injected = ["blob"]
-
 [profile.release]
 panic = "abort"
 opt-level = "z"

src/barebone/agent/README.md

@@ -1,75 +1,30 @@
-## Getting the SDK and the devkit
+## Getting the C toolchain
 
-The agent is built against the bare soft-float SDK, which carries picolibc and the
-compiler runtime, and against a GumJS devkit built for the same machine. Which machine
-is the target's, listed under Targets below; this walks through the XNU one. The SDK
-is published prebuilt, and the devkit is built from frida-gum:
+    npm install -g xpm
+    xpm install
+    export PATH=$PWD/xpacks/.bin:$PATH
 
-    machine=none-arm64-softfloat_pic
+## How to build Gum
 
-    sdk=~/sdk-$machine
-    releng/deps.py sync sdk $machine $sdk
-
-    gum=~/src/frida-gum
-    mkdir -p $gum/build/$machine
-    (cd $gum/build/$machine \
-        && CC=clang CXX=clang++ ../../configure --host=$machine --enable-gumjs \
-            --with-devkits=gumjs --with-devkit-symbol-scope=original \
-        && make)
+    ./configure \
+        --host=aarch64-none-elf \
+        --enable-gumjs \
+        --with-devkits=gum,gumjs \
+        --with-devkit-symbol-scope=original
+    make
+    export GUMJS_DEVKIT_DIR=$PWD/build/bindings/gumjs/devkit
 
 ## Building
 
-    export GUMJS_DEVKIT_DIR=$gum/build/$machine/bindings/gumjs/devkit
-    export CC="clang -I$sdk/include -I$sdk/include/glib-2.0 -I$sdk/lib/glib-2.0/include \
-        -I$sdk/include/capstone -I$sdk/include/json-glib-1.0"
-    export RUSTFLAGS="-L native=$sdk/lib"
-
-    RUSTC_BOOTSTRAP=1 cargo build --release --features xnu \
-        --target ./aarch64-unknown-none-pic.json -Z json-target-spec \
-        --target-dir target-xnu -Z build-std=core,alloc,compiler_builtins
-
-Every flavor names its target by path, as Rust has no built-in one for a
-position-independent bare-metal image. The others differ only in feature, machine
-and target spec, listed under Targets below.
-
-## Targets
-
-The agent supports four kernels. One of them has to be picked; none is a default,
-since none follows from the host you build on:
-
-- `xnu` — a freestanding ELF executable that the Barebone backend
-  injects into a running kernel from the outside, over a remote stub.
-- `win9x` — the same, for a 32-bit Windows 9x guest.
-- `winnt` — the same, for a Windows NT guest, either word size, on x86 or arm64.
-- `linux` — a static library that becomes a kernel module, loaded from the
-  inside. See `linux/README.md`.
-
-Each flavor has an SDK and a devkit of its own, since the addressing differs: an
-image the host places goes in position-independent, a Linux module is absolute,
-and NT's 64-bit half is called in the Microsoft ABI.
-
-| Flavor  | Machine                           | Rust target                      |
-|---------|-----------------------------------|----------------------------------|
-| `xnu`   | `none-arm64-softfloat_pic`        | `aarch64-unknown-none-pic.json`  |
-| `win9x` | `none-x86-softfloat_pic`          | `i686-unknown-none-pic.json`     |
-| `winnt` | `none-x86-softfloat_pic`          | `i686-unknown-none-pic.json`     |
-| `winnt` | `none-x86_64-softfloat_pic_msabi` | `x86_64-unknown-none-pic.json`   |
-| `winnt` | `none-arm64-softfloat_pic`        | `aarch64-unknown-none-pic.json`  |
-| `linux` | `none-<arch>-softfloat_nopic`     | see `linux/README.md`            |
-
-Everything above the `kernel` module is shared; each backend supplies the same
-set of primitives (logging, allocation, threads, waiting, time, symbols) plus its
-half of Gum's platform backend (`gum_xnu.rs` / `gum_windows.rs` / `gum_linux.rs`).
+    export PATH=$PWD/xpacks/.bin:$PATH
+    export CC_aarch64_unknown_none=aarch64-none-elf-gcc
+    export AR_aarch64_unknown_none=aarch64-none-elf-ar
+    export RANLIB_aarch64_unknown_none=aarch64-none-elf-ranlib
 
 ## Development loop
 
     export FRIDA_BAREBONE_CONFIG=$PWD/etc/xnu.json
-    RUSTC_BOOTSTRAP=1 cargo build --release --features xnu \
-            --target ./aarch64-unknown-none-pic.json -Z json-target-spec \
-            --target-dir target-xnu -Z build-std=core,alloc,compiler_builtins \
-        && make -C ~/src/frida-python \
-        && killall -9 qemu-system-aarch64 && sleep 2 \
-        && frida -D barebone -p 0
+    cargo build --release && make -C ~/src/frida-python && killall -9 qemu-system-aarch64 && sleep 2 && frida -D barebone -p 0
 
 ## Speeding up loop
 

src/barebone/agent/aarch64-unknown-none-pic.json

@@ -1,21 +0,0 @@
-{
-  "abi": "softfloat",
-  "arch": "aarch64",
-  "crt-objects-fallback": "false",
-  "data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128-Fn32",
-  "disable-redzone": true,
-  "features": "+v8a,+strict-align,-neon,+reserve-x18",
-  "linker": "rust-lld",
-  "linker-flavor": "gnu-lld",
-  "llvm-target": "aarch64-unknown-none",
-  "max-atomic-width": 128,
-  "panic-strategy": "abort",
-  "plt-by-default": false,
-  "position-independent-executables": true,
-  "relocation-model": "pic",
-  "rustc-abi": "softfloat",
-  "stack-probes": {
-    "kind": "inline"
-  },
-  "target-pointer-width": 64
-}

src/barebone/agent/agent-linux-arm.lds

@@ -1,150 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rel.dyn : {
-    _agent_relocs_start = .;
-    *(.rel.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(4) {
-    . = ALIGN(4);
-    __printk = .; . += 4;
-    _printk = .; . += 4;
-    _panic = .; . += 4;
-    _kthread_create_on_node = .; . += 4;
-    _wake_up_process = .; . += 4;
-    _fget = .; . += 4;
-    _kernel_read = .; . += 4;
-    _filp_open = .; . += 4;
-    _kernel_write = .; . += 4;
-    ___kmalloc_noprof = .; . += 4;
-    _kmalloc = .; . += 4;
-    ___kmalloc = .; . += 4;
-    _kfree = .; . += 4;
-    _vmalloc = .; . += 4;
-    _execmem_alloc = .; . += 4;
-    _set_memory_rw = .; . += 4;
-    _set_memory_ro = .; . += 4;
-    _set_memory_x = .; . += 4;
-    _set_memory_nx = .; . += 4;
-    _modules = .; . += 4;
-    _register_module_notifier = .; . += 4;
-    _unregister_module_notifier = .; . += 4;
-    _execmem_free = .; . += 4;
-    _module_alloc = .; . += 4;
-    _module_memfree = .; . += 4;
-    ___init_waitqueue_head = .; . += 4;
-    _prepare_to_wait_event = .; . += 4;
-    _finish_wait = .; . += 4;
-    ___wake_up = .; . += 4;
-    _autoremove_wake_function = .; . += 4;
-    _schedule_hrtimeout_range = .; . += 4;
-    _pci_get_domain_bus_and_slot = .; . += 4;
-    _pci_irq_vector = .; . += 4;
-    _of_irq_parse_and_map_pci = .; . += 4;
-    _pci_dev_put = .; . += 4;
-    _schedule = .; . += 4;
-    _ktime_get_mono_fast_ns = .; . += 4;
-    _ktime_get_real_ts64 = .; . += 4;
-    _getnstimeofday64 = .; . += 4;
-    _send_sig = .; . += 4;
-    _free_irq = .; . += 4;
-    _request_threaded_irq = .; . += 4;
-    _vmap = .; . += 4;
-    ___pv_offset = .; . += 4;
-    _pgprot_kernel = .; . += 4;
-    _ioremap = .; . += 4;
-    _of_find_node_opts_by_path = .; . += 4;
-    _of_irq_get = .; . += 4;
-    _of_node_put = .; . += 4;
-    _init_task = .; . += 4;
-    _tasklist_lock = .; . += 4;
-    __raw_read_lock = .; . += 4;
-    __raw_read_unlock = .; . += 4;
-    __raw_read_lock_irqsave = .; . += 4;
-    __raw_read_unlock_irqrestore = .; . += 4;
-    __raw_write_lock = .; . += 4;
-    __raw_write_unlock = .; . += 4;
-    __raw_write_lock_irqsave = .; . += 4;
-    __raw_write_unlock_irqrestore = .; . += 4;
-    _detach_pid = .; . += 4;
-    _free_pids = .; . += 4;
-    _get_task_exe_file = .; . += 4;
-    _file_path = .; . += 4;
-    _fput = .; . += 4;
-    _copy_from_kernel_nofault = .; . += 4;
-    _get_task_mm = .; . += 4;
-    _kthread_use_mm = .; . += 4;
-    _kthread_unuse_mm = .; . += 4;
-    _mmput = .; . += 4;
-    _vm_mmap = .; . += 4;
-    _vm_munmap = .; . += 4;
-    _tracepoint_probe_register = .; . += 4;
-    _tracepoint_probe_unregister = .; . += 4;
-    ___tracepoint_sched_process_fork = .; . += 4;
-    ___tracepoint_sched_process_exit = .; . += 4;
-    ___tracepoint_sched_process_exec = .; . += 4;
-    ___tracepoint_task_rename = .; . += 4;
-    ___set_task_comm = .; . += 4;
-    _vunmap = .; . += 4;
-    _arm_copy_to_user = .; . += 4;
-    _down_read = .; . += 4;
-    _up_read = .; . += 4;
-    _get_user_pages_unlocked = .; . += 4;
-    _get_user_pages_remote = .; . += 4;
-    _user_mode_thread = .; . += 4;
-    _fget_task = .; . += 4;
-    _find_task_by_vpid = .; . += 4;
-    ___start_BTF = .; . += 4;
-    ___stop_BTF = .; . += 4;
-    _call_usermodehelper_setup = .; . += 4;
-    _call_usermodehelper_exec = .; . += 4;
-    _arm_copy_from_user = .; . += 4;
-    _fixup_exception = .; . += 4;
-    _init_net = .; . += 4;
-    _sock_create_kern = .; . += 4;
-    _kernel_connect = .; . += 4;
-    _kernel_sendmsg = .; . += 4;
-    _kernel_recvmsg = .; . += 4;
-    _sock_release = .; . += 4;
-    _patch_text = .; . += 4;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(4);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-linux-arm64.lds

@@ -1,156 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rela.dyn : {
-    _agent_relocs_start = .;
-    *(.rela.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(8) {
-    . = ALIGN(8);
-    __printk = .; . += 8;
-    _printk = .; . += 8;
-    _panic = .; . += 8;
-    _kthread_create_on_node = .; . += 8;
-    _wake_up_process = .; . += 8;
-    _fget = .; . += 8;
-    _kernel_read = .; . += 8;
-    _filp_open = .; . += 8;
-    _kernel_write = .; . += 8;
-    ___kmalloc_noprof = .; . += 8;
-    _kmalloc = .; . += 8;
-    ___kmalloc = .; . += 8;
-    _kfree = .; . += 8;
-    _vmalloc = .; . += 8;
-    _execmem_alloc = .; . += 8;
-    _set_memory_rw = .; . += 8;
-    _set_memory_ro = .; . += 8;
-    _set_memory_x = .; . += 8;
-    _set_memory_nx = .; . += 8;
-    _modules = .; . += 8;
-    _register_module_notifier = .; . += 8;
-    _unregister_module_notifier = .; . += 8;
-    _execmem_free = .; . += 8;
-    _module_alloc = .; . += 8;
-    _module_memfree = .; . += 8;
-    ___init_waitqueue_head = .; . += 8;
-    _prepare_to_wait_event = .; . += 8;
-    _finish_wait = .; . += 8;
-    ___wake_up = .; . += 8;
-    _autoremove_wake_function = .; . += 8;
-    _schedule_hrtimeout_range = .; . += 8;
-    _pci_get_domain_bus_and_slot = .; . += 8;
-    _pci_irq_vector = .; . += 8;
-    _of_irq_parse_and_map_pci = .; . += 8;
-    _pci_dev_put = .; . += 8;
-    _schedule = .; . += 8;
-    _ktime_get_mono_fast_ns = .; . += 8;
-    _ktime_get_real_ts64 = .; . += 8;
-    _getnstimeofday64 = .; . += 8;
-    _send_sig = .; . += 8;
-    _free_irq = .; . += 8;
-    _request_threaded_irq = .; . += 8;
-    _generic_ioremap_prot = .; . += 8;
-    ___ioremap = .; . += 8;
-    _vmap = .; . += 8;
-    _memstart_addr = .; . += 8;
-    _init_task = .; . += 8;
-    _tasklist_lock = .; . += 8;
-    __raw_read_lock = .; . += 8;
-    __raw_read_unlock = .; . += 8;
-    __raw_read_lock_irqsave = .; . += 8;
-    __raw_read_unlock_irqrestore = .; . += 8;
-    __raw_write_lock = .; . += 8;
-    __raw_write_unlock = .; . += 8;
-    __raw_write_lock_irqsave = .; . += 8;
-    __raw_write_unlock_irqrestore = .; . += 8;
-    _detach_pid = .; . += 8;
-    _free_pids = .; . += 8;
-    _get_task_exe_file = .; . += 8;
-    _file_path = .; . += 8;
-    _fput = .; . += 8;
-    _copy_from_kernel_nofault = .; . += 8;
-    _get_task_mm = .; . += 8;
-    _kthread_use_mm = .; . += 8;
-    _kthread_unuse_mm = .; . += 8;
-    _mmput = .; . += 8;
-    _vm_mmap = .; . += 8;
-    _vm_munmap = .; . += 8;
-    _tracepoint_probe_register = .; . += 8;
-    _tracepoint_probe_unregister = .; . += 8;
-    ___tracepoint_sched_process_fork = .; . += 8;
-    ___tracepoint_sched_process_exit = .; . += 8;
-    ___tracepoint_sched_process_exec = .; . += 8;
-    ___tracepoint_task_rename = .; . += 8;
-    ___set_task_comm = .; . += 8;
-    _vunmap = .; . += 8;
-    ___arch_copy_to_user = .; . += 8;
-    _down_read = .; . += 8;
-    _up_read = .; . += 8;
-    _get_user_pages_unlocked = .; . += 8;
-    _get_user_pages_remote = .; . += 8;
-    ___arch_copy_from_user = .; . += 8;
-    _do_futex = .; . += 8;
-    _user_mode_thread = .; . += 8;
-    _apply_to_existing_page_range = .; . += 8;
-    _caches_clean_inval_pou = .; . += 8;
-    _do_madvise = .; . += 8;
-    _fget_task = .; . += 8;
-    _find_task_by_vpid = .; . += 8;
-    ___start_BTF = .; . += 8;
-    ___stop_BTF = .; . += 8;
-    _call_usermodehelper_setup = .; . += 8;
-    _call_usermodehelper_exec = .; . += 8;
-    _access_process_vm = .; . += 8;
-    _fixup_exception = .; . += 8;
-    _aarch64_insn_patch_text_nosync = .; . += 8;
-    _aarch64_insn_patch_text = .; . += 8;
-    _kthread_worker_fn = .; . += 8;
-    _vring_interrupt = .; . += 8;
-    _init_net = .; . += 8;
-    _sock_create_kern = .; . += 8;
-    _kernel_connect = .; . += 8;
-    _kernel_sendmsg = .; . += 8;
-    _kernel_recvmsg = .; . += 8;
-    _sock_release = .; . += 8;
-    _sock_def_readable = .; . += 8;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(8);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-linux-x86.lds

@@ -1,146 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rel.dyn : {
-    _agent_relocs_start = .;
-    *(.rel.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(4) {
-    . = ALIGN(4);
-    __printk = .; . += 4;
-    _printk = .; . += 4;
-    _panic = .; . += 4;
-    _kthread_create_on_node = .; . += 4;
-    _wake_up_process = .; . += 4;
-    _fget = .; . += 4;
-    _kernel_read = .; . += 4;
-    _filp_open = .; . += 4;
-    _kernel_write = .; . += 4;
-    ___kmalloc_noprof = .; . += 4;
-    _kmalloc = .; . += 4;
-    _kfree = .; . += 4;
-    _vmalloc = .; . += 4;
-    _execmem_alloc = .; . += 4;
-    _set_memory_rw = .; . += 4;
-    _set_memory_ro = .; . += 4;
-    _set_memory_x = .; . += 4;
-    _set_memory_nx = .; . += 4;
-    _modules = .; . += 4;
-    _register_module_notifier = .; . += 4;
-    _unregister_module_notifier = .; . += 4;
-    _text_poke_kgdb = .; . += 4;
-    _execmem_free = .; . += 4;
-    _module_alloc = .; . += 4;
-    _module_memfree = .; . += 4;
-    ___init_waitqueue_head = .; . += 4;
-    _prepare_to_wait_event = .; . += 4;
-    _finish_wait = .; . += 4;
-    ___wake_up = .; . += 4;
-    _autoremove_wake_function = .; . += 4;
-    _schedule_hrtimeout_range = .; . += 4;
-    _pci_get_domain_bus_and_slot = .; . += 4;
-    _pci_irq_vector = .; . += 4;
-    _pci_dev_put = .; . += 4;
-    _schedule = .; . += 4;
-    _ktime_get_mono_fast_ns = .; . += 4;
-    _ktime_get_real_ts64 = .; . += 4;
-    _send_sig = .; . += 4;
-    _free_irq = .; . += 4;
-    _request_threaded_irq = .; . += 4;
-    _vmap = .; . += 4;
-    _current_task = .; . += 4;
-    _ioremap = .; . += 4;
-    _ioremap_nocache = .; . += 4;
-    ___default_kernel_pte_mask = .; . += 4;
-    _init_task = .; . += 4;
-    _tasklist_lock = .; . += 4;
-    __raw_read_lock = .; . += 4;
-    __raw_read_unlock = .; . += 4;
-    __raw_read_lock_irqsave = .; . += 4;
-    __raw_read_unlock_irqrestore = .; . += 4;
-    __raw_write_lock = .; . += 4;
-    __raw_write_unlock = .; . += 4;
-    __raw_write_lock_irqsave = .; . += 4;
-    __raw_write_unlock_irqrestore = .; . += 4;
-    _detach_pid = .; . += 4;
-    _free_pids = .; . += 4;
-    _get_task_exe_file = .; . += 4;
-    _file_path = .; . += 4;
-    _fput = .; . += 4;
-    _copy_from_kernel_nofault = .; . += 4;
-    _get_task_mm = .; . += 4;
-    _kthread_use_mm = .; . += 4;
-    _kthread_unuse_mm = .; . += 4;
-    _mmput = .; . += 4;
-    _vm_mmap = .; . += 4;
-    _vm_munmap = .; . += 4;
-    _tracepoint_probe_register = .; . += 4;
-    _tracepoint_probe_unregister = .; . += 4;
-    ___tracepoint_sched_process_fork = .; . += 4;
-    ___tracepoint_sched_process_exit = .; . += 4;
-    ___tracepoint_sched_process_exec = .; . += 4;
-    _vunmap = .; . += 4;
-    __copy_to_user = .; . += 4;
-    _down_read = .; . += 4;
-    _up_read = .; . += 4;
-    _get_user_pages_unlocked = .; . += 4;
-    _get_user_pages_remote = .; . += 4;
-    _do_futex = .; . += 4;
-    _user_mode_thread = .; . += 4;
-    ___start_BTF = .; . += 4;
-    ___stop_BTF = .; . += 4;
-    _call_usermodehelper_setup = .; . += 4;
-    _call_usermodehelper_exec = .; . += 4;
-    __copy_from_user = .; . += 4;
-    _access_process_vm = .; . += 4;
-    _fget_task = .; . += 4;
-    _find_task_by_vpid = .; . += 4;
-    _init_net = .; . += 4;
-    _sock_create_kern = .; . += 4;
-    _kernel_connect = .; . += 4;
-    _kernel_sendmsg = .; . += 4;
-    _kernel_recvmsg = .; . += 4;
-    _sock_release = .; . += 4;
-    _register_die_notifier = .; . += 4;
-    _unregister_die_notifier = .; . += 4;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(4);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-linux-x86_64.lds

@@ -1,154 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rela.dyn : {
-    _agent_relocs_start = .;
-    *(.rela.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(8) {
-    . = ALIGN(8);
-    __printk = .; . += 8;
-    _printk = .; . += 8;
-    _panic = .; . += 8;
-    _kthread_create_on_node = .; . += 8;
-    _wake_up_process = .; . += 8;
-    _fget = .; . += 8;
-    _kernel_read = .; . += 8;
-    _filp_open = .; . += 8;
-    _kernel_write = .; . += 8;
-    ___kmalloc_noprof = .; . += 8;
-    _kmalloc = .; . += 8;
-    ___kmalloc = .; . += 8;
-    _kfree = .; . += 8;
-    _vmalloc = .; . += 8;
-    _execmem_alloc = .; . += 8;
-    _set_memory_rw = .; . += 8;
-    _set_memory_ro = .; . += 8;
-    _set_memory_x = .; . += 8;
-    _set_memory_nx = .; . += 8;
-    _modules = .; . += 8;
-    _register_module_notifier = .; . += 8;
-    _unregister_module_notifier = .; . += 8;
-    _text_poke_kgdb = .; . += 8;
-    _execmem_free = .; . += 8;
-    _module_alloc = .; . += 8;
-    _module_memfree = .; . += 8;
-    ___init_waitqueue_head = .; . += 8;
-    _prepare_to_wait_event = .; . += 8;
-    _finish_wait = .; . += 8;
-    ___wake_up = .; . += 8;
-    _autoremove_wake_function = .; . += 8;
-    _schedule_hrtimeout_range = .; . += 8;
-    _pci_get_domain_bus_and_slot = .; . += 8;
-    _pci_irq_vector = .; . += 8;
-    _pci_dev_put = .; . += 8;
-    _schedule = .; . += 8;
-    _ktime_get_mono_fast_ns = .; . += 8;
-    _ktime_get_real_ts64 = .; . += 8;
-    _getnstimeofday64 = .; . += 8;
-    _send_sig = .; . += 8;
-    _free_irq = .; . += 8;
-    _request_threaded_irq = .; . += 8;
-    _vmap = .; . += 8;
-    _page_offset_base = .; . += 8;
-    _current_task = .; . += 8;
-    _cpu_current_top_of_stack = .; . += 8;
-    _register_die_notifier = .; . += 8;
-    _unregister_die_notifier = .; . += 8;
-    _ioremap = .; . += 8;
-    _ioremap_nocache = .; . += 8;
-    ___default_kernel_pte_mask = .; . += 8;
-    _init_task = .; . += 8;
-    _tasklist_lock = .; . += 8;
-    __raw_read_lock = .; . += 8;
-    __raw_read_unlock = .; . += 8;
-    __raw_read_lock_irqsave = .; . += 8;
-    __raw_read_unlock_irqrestore = .; . += 8;
-    __raw_write_lock = .; . += 8;
-    __raw_write_unlock = .; . += 8;
-    __raw_write_lock_irqsave = .; . += 8;
-    __raw_write_unlock_irqrestore = .; . += 8;
-    _detach_pid = .; . += 8;
-    _free_pids = .; . += 8;
-    _get_task_exe_file = .; . += 8;
-    _file_path = .; . += 8;
-    _fput = .; . += 8;
-    _copy_from_kernel_nofault = .; . += 8;
-    _get_task_mm = .; . += 8;
-    _kthread_use_mm = .; . += 8;
-    _kthread_unuse_mm = .; . += 8;
-    _mmput = .; . += 8;
-    _vm_mmap = .; . += 8;
-    _vm_munmap = .; . += 8;
-    _tracepoint_probe_register = .; . += 8;
-    _tracepoint_probe_unregister = .; . += 8;
-    ___tracepoint_sched_process_fork = .; . += 8;
-    ___tracepoint_sched_process_exit = .; . += 8;
-    ___tracepoint_sched_process_exec = .; . += 8;
-    ___tracepoint_task_rename = .; . += 8;
-    ___set_task_comm = .; . += 8;
-    _vunmap = .; . += 8;
-    __copy_to_user = .; . += 8;
-    _down_read = .; . += 8;
-    _up_read = .; . += 8;
-    _get_user_pages_unlocked = .; . += 8;
-    _get_user_pages_remote = .; . += 8;
-    _do_futex = .; . += 8;
-    _user_mode_thread = .; . += 8;
-    ___start_BTF = .; . += 8;
-    ___stop_BTF = .; . += 8;
-    _call_usermodehelper_setup = .; . += 8;
-    _call_usermodehelper_exec = .; . += 8;
-    __copy_from_user = .; . += 8;
-    _access_process_vm = .; . += 8;
-    _fget_task = .; . += 8;
-    _find_task_by_vpid = .; . += 8;
-    _init_net = .; . += 8;
-    _sock_create_kern = .; . += 8;
-    _kernel_connect = .; . += 8;
-    _kernel_sendmsg = .; . += 8;
-    _kernel_recvmsg = .; . += 8;
-    _sock_release = .; . += 8;
-    _sock_def_readable = .; . += 8;
-    _of_irq_parse_and_map_pci = .; . += 8;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(8);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-win9x-x86.lds

@@ -1,97 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rel.dyn : {
-    _agent_relocs_start = .;
-    *(.rel.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(4) {
-    . = ALIGN(4);
-    _Get_Cur_VM_Handle = .; . += 4;
-    _Get_Sys_VM_Handle = .; . += 4;
-    _Schedule_Global_Event = .; . += 4;
-    _Create_Semaphore = .; . += 4;
-    _Wait_Semaphore = .; . += 4;
-    _Signal_Semaphore = .; . += 4;
-    _Get_Next_VM_Handle = .; . += 4;
-    _Release_Time_Slice = .; . += 4;
-    _Set_Global_Time_Out = .; . += 4;
-    _Cancel_Time_Out = .; . += 4;
-    _Get_System_Time = .; . += 4;
-    __HeapAllocate = .; . += 4;
-    __HeapFree = .; . += 4;
-    __PageAllocate = .; . += 4;
-    __PageFree = .; . += 4;
-    __CopyPageTable = .; . += 4;
-    __MapPhysToLinear = .; . += 4;
-    _VMM_Add_DDB = .; . += 4;
-    _VMM_Remove_DDB = .; . += 4;
-    __RegOpenKey = .; . += 4;
-    __RegCloseKey = .; . += 4;
-    __RegEnumKey = .; . += 4;
-    __RegQueryValueEx = .; . += 4;
-    __PageReserve = .; . += 4;
-    __PageCommit = .; . += 4;
-    _Hook_VMM_Fault = .; . += 4;
-    _Unhook_VMM_Fault = .; . += 4;
-    _Fatal_Error_Handler = .; . += 4;
-    _Get_Cur_Thread_Handle = .; . += 4;
-
-    _Get_Initial_Thread_Handle = .; . += 4;
-    _Get_Next_Thread_Handle = .; . += 4;
-    __Debug_Printf_Service = .; . += 4;
-    __ContextSwitch = .; . += 4;
-    __PageModifyPermissions = .; . += 4;
-    __GetCurrentContext = .; . += 4;
-    _VPICD_Virtualize_IRQ = .; . += 4;
-    _VPICD_Force_Default_Behavior = .; . += 4;
-    _VPICD_Phys_EOI = .; . += 4;
-    _VPICD_Physically_Unmask = .; . += 4;
-    __VWIN32_QueueUserApc = .; . += 4;
-    __VWIN32_Get_Thread_Context = .; . += 4;
-    __VWIN32_Set_Thread_Context = .; . += 4;
-    __VWIN32_CreateRing0Thread = .; . += 4;
-    _IFSMgr_Ring0_FileIO = .; . += 4;
-    _KERNEL32_Base = .; . += 4;
-    _KERNEL32_ProcessIdObfuscator = .; . += 4;
-    _KERNEL32_ModuleTable = .; . += 4;
-    __PageCommitPhys = .; . += 4;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(4);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-      frida_win9x_user_main;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-winnt-arm64.lds

@@ -1,112 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rela.dyn : {
-    _agent_relocs_start = .;
-    *(.rela.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(8) {
-    . = ALIGN(8);
-    _ExAllocatePoolWithTag = .; . += 8;
-    _ExFreePoolWithTag = .; . += 8;
-    _PsCreateSystemThread = .; . += 8;
-    _PsGetCurrentThreadId = .; . += 8;
-    _KeInitializeEvent = .; . += 8;
-    _KeWaitForSingleObject = .; . += 8;
-    _KeSetEvent = .; . += 8;
-    _KeInitializeDpc = .; . += 8;
-    _PsSetCreateThreadNotifyRoutine = .; . += 8;
-    _PsRemoveCreateThreadNotifyRoutine = .; . += 8;
-    _KeInsertQueueDpc = .; . += 8;
-    _ZwYieldExecution = .; . += 8;
-    _KeExpandKernelStackAndCalloutEx = .; . += 8;
-    _KeBugCheckEx = .; . += 8;
-    _DbgPrint = .; . += 8;
-    _MmGetVirtualForPhysical = .; . += 8;
-    _MmMapIoSpace = .; . += 8;
-    _MmGetPhysicalAddress = .; . += 8;
-    _HalGetInterruptVector = .; . += 8;
-    _IoConnectInterrupt = .; . += 8;
-    _IoDisconnectInterrupt = .; . += 8;
-    _PsActiveProcessHead = .; . += 8;
-    _PsInitialSystemProcess = .; . += 8;
-    _PsGetProcessId = .; . += 8;
-    _PsGetProcessImageFileName = .; . += 8;
-    _PsGetProcessPeb = .; . += 8;
-    _PsGetCurrentThread = .; . += 8;
-    _PsGetThreadProcess = .; . += 8;
-    _PsGetThreadId = .; . += 8;
-    _PsGetThreadTeb = .; . += 8;
-    _PsGetContextThread = .; . += 8;
-    _PsSetContextThread = .; . += 8;
-    _KeStackAttachProcess = .; . += 8;
-    _KeUnstackDetachProcess = .; . += 8;
-    _ZwCreateFile = .; . += 8;
-    _ZwOpenKey = .; . += 8;
-    _ZwEnumerateKey = .; . += 8;
-    _ZwQueryValueKey = .; . += 8;
-    _ZwReadFile = .; . += 8;
-    _ZwWriteFile = .; . += 8;
-    _ZwEnumerateValueKey = .; . += 8;
-    _ZwDeviceIoControlFile = .; . += 8;
-    _ZwClose = .; . += 8;
-    _ZwCreateEvent = .; . += 8;
-    _ExAllocatePool2 = .; . += 8;
-    _MmCopyVirtualMemory = .; . += 8;
-    _KeIpiGenericCall = .; . += 8;
-    _MmIsAddressValid = .; . += 8;
-    _ZwClearEvent = .; . += 8;
-    _ZwWaitForSingleObject = .; . += 8;
-    _ZwAllocateVirtualMemory = .; . += 8;
-    _ZwFreeVirtualMemory = .; . += 8;
-    _ZwCreateThread = .; . += 8;
-    _PsProcessType = .; . += 8;
-    _ObReferenceObjectByHandle = .; . += 8;
-    _ObOpenObjectByPointer = .; . += 8;
-    _ExEventObjectType = .; . += 8;
-    _IoAllocateMdl = .; . += 8;
-    _IoFreeMdl = .; . += 8;
-    _MmBuildMdlForNonPagedPool = .; . += 8;
-    _MmMapLockedPagesSpecifyCache = .; . += 8;
-    _MmUnmapLockedPages = .; . += 8;
-  }
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(8);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-      frida_winnt_user_main;
-      frida_winnt_user_bootstrap;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-winnt-x86.lds

@@ -1,111 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rel.dyn : {
-    _agent_relocs_start = .;
-    *(.rel.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(4) {
-    . = ALIGN(4);
-    _ExAllocatePoolWithTag = .; . += 4;
-    _ExFreePoolWithTag = .; . += 4;
-    _PsCreateSystemThread = .; . += 4;
-    _PsGetCurrentThreadId = .; . += 4;
-    _KeInitializeEvent = .; . += 4;
-    _KeWaitForSingleObject = .; . += 4;
-    _KeSetEvent = .; . += 4;
-    _KeInitializeDpc = .; . += 4;
-    _PsSetCreateThreadNotifyRoutine = .; . += 4;
-    _PsRemoveCreateThreadNotifyRoutine = .; . += 4;
-    _KeInsertQueueDpc = .; . += 4;
-    _ZwYieldExecution = .; . += 4;
-    _KeExpandKernelStackAndCalloutEx = .; . += 4;
-    _KeBugCheckEx = .; . += 4;
-    _DbgPrint = .; . += 4;
-    _MmGetVirtualForPhysical = .; . += 4;
-    _MmMapIoSpace = .; . += 4;
-    _MmGetPhysicalAddress = .; . += 4;
-    _HalGetInterruptVector = .; . += 4;
-    _IoConnectInterrupt = .; . += 4;
-    _IoDisconnectInterrupt = .; . += 4;
-    _PsActiveProcessHead = .; . += 4;
-    _PsInitialSystemProcess = .; . += 4;
-    _PsGetProcessId = .; . += 4;
-    _PsGetProcessImageFileName = .; . += 4;
-    _PsGetProcessPeb = .; . += 4;
-    _PsGetCurrentThread = .; . += 4;
-    _PsGetThreadProcess = .; . += 4;
-    _PsGetThreadId = .; . += 4;
-    _PsGetThreadTeb = .; . += 4;
-    _PsGetContextThread = .; . += 4;
-    _PsSetContextThread = .; . += 4;
-    _KeStackAttachProcess = .; . += 4;
-    _KeUnstackDetachProcess = .; . += 4;
-    _ZwCreateFile = .; . += 4;
-    _ZwOpenKey = .; . += 4;
-    _ZwEnumerateKey = .; . += 4;
-    _ZwQueryValueKey = .; . += 4;
-    _ZwReadFile = .; . += 4;
-    _ZwWriteFile = .; . += 4;
-    _ZwEnumerateValueKey = .; . += 4;
-    _ZwDeviceIoControlFile = .; . += 4;
-    _ZwClose = .; . += 4;
-    _ZwCreateEvent = .; . += 4;
-    _ExAllocatePool2 = .; . += 4;
-    _MmCopyVirtualMemory = .; . += 4;
-    _KeIpiGenericCall = .; . += 4;
-    _MmIsAddressValid = .; . += 4;
-    _ZwClearEvent = .; . += 4;
-    _ZwWaitForSingleObject = .; . += 4;
-    _ZwAllocateVirtualMemory = .; . += 4;
-    _ZwFreeVirtualMemory = .; . += 4;
-    _ZwCreateThread = .; . += 4;
-    _PsProcessType = .; . += 4;
-    _ObReferenceObjectByHandle = .; . += 4;
-    _ObOpenObjectByPointer = .; . += 4;
-    _ExEventObjectType = .; . += 4;
-    _IoAllocateMdl = .; . += 4;
-    _IoFreeMdl = .; . += 4;
-    _MmBuildMdlForNonPagedPool = .; . += 4;
-    _MmMapLockedPagesSpecifyCache = .; . += 4;
-    _MmUnmapLockedPages = .; . += 4;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(4);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-      frida_winnt_user_main;
-      frida_winnt_user_bootstrap;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-winnt-x86_64.lds

@@ -1,121 +0,0 @@
-SECTIONS {
-  /* The large code model gives every section an l-prefixed name of its own, so that
-     the compiler can reach it with a 64-bit displacement rather than assume 2GB. */
-  .text : {
-    *(.text.entrypoint)
-    *(.ltext.entrypoint)
-    *(.text*)
-    *(.ltext*)
-  }
-  .rela.dyn : {
-    _agent_relocs_start = .;
-    *(.rela.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-    *(.lrodata*)
-  }
-  .kernel_addrs : ALIGN(8) {
-    . = ALIGN(8);
-    _ExAllocatePoolWithTag = .; . += 8;
-    _ExFreePoolWithTag = .; . += 8;
-    _PsCreateSystemThread = .; . += 8;
-    _PsGetCurrentThreadId = .; . += 8;
-    _KeInitializeEvent = .; . += 8;
-    _KeWaitForSingleObject = .; . += 8;
-    _KeSetEvent = .; . += 8;
-    _KeInitializeDpc = .; . += 8;
-    _PsSetCreateThreadNotifyRoutine = .; . += 8;
-    _PsRemoveCreateThreadNotifyRoutine = .; . += 8;
-    _KeInsertQueueDpc = .; . += 8;
-    _ZwYieldExecution = .; . += 8;
-    _KeExpandKernelStackAndCalloutEx = .; . += 8;
-    _KeBugCheckEx = .; . += 8;
-    _DbgPrint = .; . += 8;
-    _MmGetVirtualForPhysical = .; . += 8;
-    _MmMapIoSpace = .; . += 8;
-    _MmGetPhysicalAddress = .; . += 8;
-    _HalGetInterruptVector = .; . += 8;
-    _IoConnectInterrupt = .; . += 8;
-    _IoDisconnectInterrupt = .; . += 8;
-    _PsActiveProcessHead = .; . += 8;
-    _PsInitialSystemProcess = .; . += 8;
-    _PsGetProcessId = .; . += 8;
-    _PsGetProcessImageFileName = .; . += 8;
-    _PsGetProcessPeb = .; . += 8;
-    _PsGetCurrentThread = .; . += 8;
-    _PsGetThreadProcess = .; . += 8;
-    _PsGetThreadId = .; . += 8;
-    _PsGetThreadTeb = .; . += 8;
-    _PsGetContextThread = .; . += 8;
-    _PsSetContextThread = .; . += 8;
-    _KeStackAttachProcess = .; . += 8;
-    _KeUnstackDetachProcess = .; . += 8;
-    _ZwCreateFile = .; . += 8;
-    _ZwOpenKey = .; . += 8;
-    _ZwEnumerateKey = .; . += 8;
-    _ZwQueryValueKey = .; . += 8;
-    _ZwReadFile = .; . += 8;
-    _ZwWriteFile = .; . += 8;
-    _ZwEnumerateValueKey = .; . += 8;
-    _ZwDeviceIoControlFile = .; . += 8;
-    _ZwClose = .; . += 8;
-    _ZwCreateEvent = .; . += 8;
-    _ExAllocatePool2 = .; . += 8;
-    _MmCopyVirtualMemory = .; . += 8;
-    _KeIpiGenericCall = .; . += 8;
-    _MmIsAddressValid = .; . += 8;
-    _ZwClearEvent = .; . += 8;
-    _ZwWaitForSingleObject = .; . += 8;
-    _ZwAllocateVirtualMemory = .; . += 8;
-    _ZwFreeVirtualMemory = .; . += 8;
-    _ZwCreateThread = .; . += 8;
-    _PsProcessType = .; . += 8;
-    _ObReferenceObjectByHandle = .; . += 8;
-    _ObOpenObjectByPointer = .; . += 8;
-    _ExEventObjectType = .; . += 8;
-    _IoAllocateMdl = .; . += 8;
-    _IoFreeMdl = .; . += 8;
-    _MmBuildMdlForNonPagedPool = .; . += 8;
-    _MmMapLockedPagesSpecifyCache = .; . += 8;
-    _MmUnmapLockedPages = .; . += 8;
-  }
-  /* Everything above is only ever read, so a process being instrumented can be shown the very
-     same pages; everything below it each copy needs its own of. */
-  . = ALIGN(4096);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-    *(.ldata*)
-  }
-  .bss : {
-    *(.bss*)
-    *(.lbss*)
-  }
-  . = ALIGN(8);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-      frida_winnt_user_main;
-      frida_winnt_user_bootstrap;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent-xnu-arm64.lds

@@ -1,112 +0,0 @@
-SECTIONS {
-  .text : {
-    *(.text.entrypoint)
-    *(.text*)
-  }
-  .rela.dyn : {
-    _agent_relocs_start = .;
-    *(.rela.dyn)
-    _agent_relocs_end = .;
-  }
-  .rodata : {
-    *(.rodata*)
-  }
-  .kernel_addrs : ALIGN(8) {
-    . = ALIGN(8);
-    _panic = .; . += 8;
-    _IOLog = .; . += 8;
-    _kalloc = .; . += 8;
-    _proc_iterate = .; . += 8;
-    _proc_find = .; . += 8;
-    _proc_rele = .; . += 8;
-    _proc_pid = .; . += 8;
-    _proc_best_name = .; . += 8;
-    _proc_task = .; . += 8;
-    _current_task = .; . += 8;
-    _current_thread = .; . += 8;
-    _get_task_map = .; . += 8;
-    _mach_vm_allocate = .; . += 8;
-    _mach_vm_deallocate = .; . += 8;
-    _mach_vm_protect = .; . += 8;
-    _mach_vm_remap = .; . += 8;
-    _vm_map_copyin = .; . += 8;
-    _vm_map_copyout = .; . += 8;
-    _thread_create = .; . += 8;
-    _thread_set_state = .; . += 8;
-    _thread_resume = .; . += 8;
-    _thread_terminate = .; . += 8;
-    _task_suspend = .; . += 8;
-    _task_resume = .; . += 8;
-    _task_clear_return_wait = .; . += 8;
-    _get_bsdtask_info = .; . += 8;
-    _thread_suspend = .; . += 8;
-    _kfree = .; . += 8;
-    _kernel_thread_start = .; . += 8;
-    _assert_wait = .; . += 8;
-    _assert_wait_timeout = .; . += 8;
-    _thread_block = .; . += 8;
-    _thread_wakeup = .; . += 8;
-    _thread_wakeup_prim = .; . += 8;
-    _mach_absolute_time = .; . += 8;
-    _absolutetime_to_nanoseconds = .; . += 8;
-    _clock_get_calendar_microtime = .; . += 8;
-    _ml_io_map = .; . += 8;
-    _ml_vtophys = .; . += 8;
-    _ml_static_vtop = .; . += 8;
-    __ZN9IOService11getPlatformEv = .; . += 8;
-    __ZN9IOServiceC2Ev = .; . += 8;
-    __ZN8OSSymbol17withCStringNoCopyEPKc = .; . += 8;
-    __ZN6OSData9withBytesEPKvj = .; . += 8;
-    _kalloc_data = .; . += 8;
-    _kfree_data = .; . += 8;
-    _wakeup = .; . += 8;
-    _sock_socket = .; . += 8;
-    _sock_connect = .; . += 8;
-    _sock_send = .; . += 8;
-    _sock_receive = .; . += 8;
-    _sock_close = .; . += 8;
-    _sysent = .; . += 8;
-    _task_restartable_ranges_register = .; . += 8;
-    _task_threads = .; . += 8;
-    _mach_vm_region = .; . += 8;
-    _mach_vm_region_recurse = .; . += 8;
-    _copyin = .; . += 8;
-    _copyout = .; . += 8;
-    _ulock_wake = .; . += 8;
-    _task_info = .; . += 8;
-    _convert_port_to_thread = .; . += 8;
-    _convert_port_to_thread_read = .; . += 8;
-    _convert_port_to_thread_inspect = .; . += 8;
-  }
-  . = ALIGN(16384);
-  _agent_private_start = .;
-  .data.rel.ro : {
-    *(.data.rel.ro*)
-  }
-  .got : {
-    *(.got*)
-  }
-  .init_array : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-  .data : {
-    *(.data*)
-  }
-  .bss : {
-    *(.bss*)
-  }
-  . = ALIGN(8);
-  _heap_start = .;
-}
-
-VERSION {
-  {
-    global:
-      _start;
-
-    local:
-      *;
-  };
-}

src/barebone/agent/agent.lds

@@ -0,0 +1,59 @@
+SECTIONS {
+  .text : {
+    *(.text.entrypoint)
+    *(.text*)
+  }
+  .rodata : {
+    *(.rodata*)
+  }
+  .kernel_addrs : ALIGN(8) {
+    . = ALIGN(8);
+    _panic = .; . += 8;
+    _IOLog = .; . += 8;
+    _kalloc = .; . += 8;
+    _kfree = .; . += 8;
+    _kernel_thread_start = .; . += 8;
+    _assert_wait = .; . += 8;
+    _assert_wait_timeout = .; . += 8;
+    _thread_block = .; . += 8;
+    _thread_wakeup = .; . += 8;
+    _mach_absolute_time = .; . += 8;
+    _absolutetime_to_nanoseconds = .; . += 8;
+    _clock_get_calendar_microtime = .; . += 8;
+    _ml_io_map = .; . += 8;
+    _ml_vtophys = .; . += 8;
+    __ZN9IOService11getPlatformEv = .; . += 8;
+    __ZN9IOServiceC2Ev = .; . += 8;
+    __ZN8OSSymbol17withCStringNoCopyEPKc = .; . += 8;
+    __ZN6OSData9withBytesEPKvj = .; . += 8;
+    _kalloc_data = .; . += 8;
+    _kfree_data = .; . += 8;
+    _wakeup = .; . += 8;
+    _sock_socket = .; . += 8;
+    _sock_connect = .; . += 8;
+    _sock_send = .; . += 8;
+    _sock_receive = .; . += 8;
+    _sock_close = .; . += 8;
+  }
+  .data.rel.ro : {
+    *(.data.rel.ro*)
+  }
+  .got : {
+    *(.got*)
+  }
+  .bss : {
+    *(.bss*)
+  }
+  . = ALIGN(8);
+  _heap_start = .;
+}
+
+VERSION {
+  {
+    global:
+      _start;
+
+    local:
+      *;
+  };
+}

src/barebone/agent/armv7a-unknown-none-pic.json

@@ -1,17 +0,0 @@
-{
-  "abi": "eabi",
-  "arch": "arm",
-  "crt-objects-fallback": "false",
-  "data-layout": "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64",
-  "features": "+v7,+thumb2,+thumb-mode,+soft-float,+strict-align,-neon",
-  "linker": "rust-lld",
-  "linker-flavor": "gnu-lld",
-  "llvm-floatabi": "soft",
-  "llvm-target": "armv7a-none-eabi",
-  "max-atomic-width": 64,
-  "panic-strategy": "abort",
-  "plt-by-default": false,
-  "position-independent-executables": true,
-  "relocation-model": "pic",
-  "target-pointer-width": 32
-}

src/barebone/agent/build.rs

@@ -8,17 +8,12 @@ fn main() {
     let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
     let devkit_dir = PathBuf::from(env::var("GUMJS_DEVKIT_DIR").unwrap());
 
-    let target = env::var("TARGET").unwrap();
-    let cc_str = env::var(format!("CC_{}", target.replace('-', "_")))
+    let cc_str = env::var("CC_aarch64_unknown_none")
             .or_else(|_| env::var("CC"))
             .unwrap_or_else(|_| "cc".to_string());
-    // Same convention as cc-rs: the variable may carry flags, and a bare-metal
-    // compiler needs them to find its libc at all.
-    let mut cc_argv = cc_str.split_whitespace();
-    let cc = Path::new(cc_argv.next().unwrap());
-    let cc_args: Vec<&str> = cc_argv.collect();
-    let cc_include_paths = detect_gcc_include_paths(cc, &cc_args);
-    let cc_library_paths = detect_gcc_library_paths(cc, &cc_args);
+    let cc = Path::new(&cc_str);
+    let cc_include_paths = detect_gcc_include_paths(cc);
+    let cc_library_paths = detect_gcc_library_paths(cc);
 
     let cc_clang_args: Vec<String> = cc_include_paths
         .iter()
@@ -30,15 +25,9 @@ fn main() {
         .header(devkit_dir.join("frida-gumjs.h").to_str().unwrap())
         .clang_arg("-nostdinc")
         .clang_arg("-target")
-        .clang_arg(format!("{}-none-elf", target.split('-').next().unwrap()))
+        .clang_arg("aarch64-none-elf")
         .clang_args(cc_clang_args)
         .clang_arg(format!("-I{}", devkit_dir.to_str().unwrap()))
-        .clang_arg("-include")
-        .clang_arg("stddef.h")
-        .clang_arg("-include")
-        .clang_arg("stdint.h")
-        .blocklist_type("max_align_t")
-        .blocklist_function("memcpy|memmove|memset|memcmp|bcmp|strlen")
         .merge_extern_blocks(true)
         .generate()
         .expect("Unable to generate bindings");
@@ -47,131 +36,25 @@ fn main() {
         .write_to_file(out_dir.join("bindings.rs"))
         .expect("Couldn't write bindings");
 
-    // The Linux flavour is a staticlib: kbuild owns the final link, so it — not
-    // us — decides where the devkit and libc archives come from.
-    if env::var("CARGO_FEATURE_BLOB").is_ok() {
-        println!(
-            "cargo:rustc-link-search=native={}",
-            devkit_dir.to_str().unwrap()
-        );
-        println!("cargo:rustc-link-lib=static=frida-gumjs");
-        for path in cc_library_paths {
-            println!("cargo:rustc-link-search=native={}", path.to_string_lossy());
-        }
-        for arg in &cc_args {
-            if let Some(path) = arg.strip_prefix("-L") {
-                println!("cargo:rustc-link-search=native={path}");
-            }
-        }
-        println!("cargo:rustc-link-lib=static=c");
-        println!("cargo:rustc-link-lib=static=m");
-        println!("cargo:rustc-link-arg=--export-dynamic");
-        println!("cargo:rustc-link-arg=--emit-relocs");
-        let flavor = if env::var("CARGO_FEATURE_WIN9X").is_ok() {
-            "win9x"
-        } else if env::var("CARGO_FEATURE_WINNT").is_ok() {
-            "winnt"
-        } else if env::var("CARGO_FEATURE_LINUX_INJECTED").is_ok() {
-            "linux"
-        } else {
-            "xnu"
-        };
-        let arch = match target.split('-').next().unwrap() {
-            "i686" => "x86",
-            "armv7a" => "arm",
-            "aarch64" => "arm64",
-            other => other,
-        };
-        let script = format!("agent-{flavor}-{arch}.lds");
-        println!("cargo:rustc-link-arg=--script={script}");
-        println!("cargo:rustc-link-arg=--gc-sections");
-        // All of the agent lives in the library crate, so nothing in the binary
-        // references the entrypoint the host calls; keep the linker from
-        // dropping it along with the rest of the unreferenced archive members.
-        println!("cargo:rustc-link-arg=--undefined=_start");
-
-        let note = compile_version_note(&out_dir, cc, &cc_args, arch);
-        println!("cargo:rustc-link-arg={}", note.to_string_lossy());
-    }
-
-    if target.starts_with("i686") && env::var("CARGO_FEATURE_LINUX_INJECTED").is_ok() {
-        let shim = out_dir.join("regparm.o");
-        let status = Command::new(cc)
-            .args(&cc_args)
-            .args(["-m32", "-c", "-O2", "-fPIC", "-ffreestanding", "-o"])
-            .arg(&shim)
-            .arg("src/linux/regparm.c")
-            .status()
-            .expect("Couldn't run the compiler");
-        assert!(status.success(), "Couldn't compile the kernel-call shim");
-
-        println!("cargo:rustc-link-arg={}", shim.to_string_lossy());
-        println!("cargo:rerun-if-changed=src/linux/regparm.c");
-    }
-
-    println!("cargo:rerun-if-changed=build.rs");
-    println!("cargo:rerun-if-env-changed=GUMJS_DEVKIT_DIR");
-    println!("cargo:rerun-if-env-changed=FRIDA_VERSION");
-    println!("cargo:rerun-if-changed={}", devkit_dir.join("frida-gumjs.h").display());
-}
-
-fn compile_version_note(out_dir: &Path, cc: &Path, cc_args: &[&str], arch: &str) -> PathBuf {
-    let version = env::var("FRIDA_VERSION")
-        .ok()
-        .filter(|v| !v.is_empty())
-        .unwrap_or_else(|| "0.0.0".to_string());
-    let payload = format!(
-        "{{\"type\":\"frida\",\"name\":\"frida-barebone-agent\",\
-         \"version\":\"{version}\",\"architecture\":\"{arch}\"}}"
+    println!(
+        "cargo:rustc-link-search=native={}",
+        devkit_dir.to_str().unwrap()
     );
-
-    let source = out_dir.join("version-note.S");
-    fs::write(
-        &source,
-        format!(
-            ".section .note.package,\"\",%note\n\
-             .balign 4\n\
-             .long 2f - 1f\n\
-             .long 4f - 3f\n\
-             .long 0xcafe1a7e\n\
-             1: .asciz \"FDO\"\n\
-             2: .balign 4\n\
-             3: .asciz {payload:?}\n\
-             4: .balign 4\n"
-        ),
-    )
-    .expect("Couldn't write the version note");
-
-    let object = out_dir.join("version-note.o");
-    let status = Command::new(cc)
-        .args(cc_args)
-        .args(["-target", &llvm_target(), "-c", "-o"])
-        .arg(&object)
-        .arg(&source)
-        .status()
-        .expect("Couldn't run the compiler");
-    assert!(status.success(), "Couldn't assemble the version note");
-
-    object
+    println!("cargo:rustc-link-lib=static=frida-gumjs");
+    for path in cc_library_paths {
+        println!("cargo:rustc-link-search=native={}", path.to_string_lossy());
+    }
+    println!("cargo:rustc-link-lib=static=c");
+    println!("cargo:rustc-link-lib=static=m");
+    println!("cargo:rustc-link-arg=--export-dynamic");
+    println!("cargo:rustc-link-arg=--emit-relocs");
+    println!("cargo:rustc-link-arg=--script=agent.lds");
+    println!("cargo:rustc-link-arg=--gc-sections");
+    println!("cargo:rerun-if-changed=build.rs");
 }
 
-fn llvm_target() -> String {
-    let target = env::var("TARGET").unwrap();
-    let spec = Path::new(&env::var("CARGO_MANIFEST_DIR").unwrap()).join(format!("{target}.json"));
-    let text = fs::read_to_string(&spec).expect("Couldn't read the target specification");
-
-    let key = "\"llvm-target\"";
-    let at = text.find(key).expect("Target specification names no LLVM target");
-    let rest = &text[at + key.len()..];
-    let open = rest.find('"').unwrap() + 1;
-    let close = open + rest[open..].find('"').unwrap();
-
-    rest[open..close].to_string()
-}
-
-pub fn detect_gcc_include_paths(gcc: &Path, args: &[&str]) -> Vec<PathBuf> {
+pub fn detect_gcc_include_paths(gcc: &Path) -> Vec<PathBuf> {
     let out = Command::new(gcc)
-        .args(args)
         .args(["-xc", "-E", "-v", "-"])
         .stdin(Stdio::null())
         .output()
@@ -201,7 +84,7 @@ pub fn detect_gcc_include_paths(gcc: &Path, args: &[&str]) -> Vec<PathBuf> {
 
         let p = Path::new(raw);
         if p.exists() {
-            let canonical = without_extended_length_prefix(fs::canonicalize(p).expect("Failed to canonicalize include path"));
+            let canonical = fs::canonicalize(p).expect("Failed to canonicalize include path");
             if !paths.contains(&canonical) {
                 paths.push(canonical);
             }
@@ -211,16 +94,8 @@ pub fn detect_gcc_include_paths(gcc: &Path, args: &[&str]) -> Vec<PathBuf> {
     paths
 }
 
-fn without_extended_length_prefix(path: PathBuf) -> PathBuf {
-    let text = path.to_string_lossy();
-    match text.strip_prefix(r"\\?\") {
-        Some(rest) => PathBuf::from(rest),
-        None => path,
-    }
-}
-
-pub fn detect_gcc_library_paths(gcc: &Path, args: &[&str]) -> Vec<PathBuf> {
-    let out = Command::new(gcc).args(args).arg("-print-search-dirs").output()
+pub fn detect_gcc_library_paths(gcc: &Path) -> Vec<PathBuf> {
+    let out = Command::new(gcc).arg("-print-search-dirs").output()
         .expect("Failed to execute GCC to detect library paths");
 
     let stdout = String::from_utf8_lossy(&out.stdout);

src/barebone/agent/env.sh

@@ -1,8 +1,8 @@
 export FRIDA_BAREBONE_CONFIG=$PWD/etc/xnu.json
 export PYTHONPATH=$HOME/src/frida-python
 
-sdk=$HOME/src/frida-core/deps/sdk-none-arm64-softfloat_pic
-export CC="clang --target=aarch64-none-elf -ffixed-x18 -I$sdk/include -I$sdk/include/glib-2.0 -I$sdk/lib/glib-2.0/include \
-    -I$sdk/include/capstone -I$sdk/include/json-glib-1.0"
-export RUSTFLAGS="-L native=$sdk/lib"
-export GUMJS_DEVKIT_DIR=$HOME/src/frida-gum/build/none-arm64-softfloat_pic/bindings/gumjs/devkit
+export PATH=$PWD/xpacks/.bin:$PATH
+export CC_aarch64_unknown_none=aarch64-none-elf-gcc
+export AR_aarch64_unknown_none=aarch64-none-elf-ar
+export RANLIB_aarch64_unknown_none=aarch64-none-elf-ranlib
+export GUMJS_DEVKIT_DIR=/home/oleavr/src/frida-gum/build/bindings/gumjs/devkit

src/barebone/agent/etc/linux-kmod-socket.json

@@ -1,8 +0,0 @@
-{
-  "agent": {
-    "transport": {
-      "type": "socket",
-      "path": "/tmp/frida-guest.sock"
-    }
-  }
-}

src/barebone/agent/etc/linux-kmod.json

@@ -1,8 +0,0 @@
-{
-  "agent": {
-    "transport": {
-      "type": "device",
-      "path": "/dev/frida"
-    }
-  }
-}

src/barebone/agent/etc/vz.json

@@ -20,7 +20,6 @@
     }
   },
   "image": {
-    "type": "xnu-kernelcache",
     "file": "/Users/oleavr/src/vphone-cli/vm/iPhone17,3_26.1_23B85_Restore/kernelcache.research.vresearch101",
     "symbols": {
       "panic": "0x12a2814",

src/barebone/agent/etc/win9x.json

@@ -1,15 +0,0 @@
-{
-  "connection": {
-    "host": "127.0.0.1",
-    "port": 1234
-  },
-  "kernel": "win9x",
-  "agent": {
-    "path": "/home/oleavr/src/frida-core/src/barebone/agent/target-win9x/i686-unknown-none-pic/release/frida-barebone-agent",
-    "transport": {
-      "type": "hostlink",
-      "qmp": "unix:/tmp/claude-1000/-home-oleavr-src-frida-core/0f3e358c-8f66-4246-b793-deb2cd3727f3/scratchpad/qmp.sock",
-      "bus": "frida-vserial.0"
-    }
-  }
-}

src/barebone/agent/etc/winnt.json

@@ -1,15 +0,0 @@
-{
-  "connection": {
-    "host": "127.0.0.1",
-    "port": 1234
-  },
-  "kernel": "winnt",
-  "agent": {
-    "path": "/home/oleavr/src/frida-core/src/barebone/agent/target-winnt/i686-unknown-none-pic/release/frida-barebone-agent",
-    "transport": {
-      "type": "hostlink",
-      "qmp": "unix:/tmp/qmp.sock",
-      "bus": "frida-vserial.0"
-    }
-  }
-}

src/barebone/agent/etc/xnu.json

@@ -16,7 +16,6 @@
     }
   },
   "image": {
-    "type": "xnu-kernelcache",
     "file": "/Users/oleavr/src/frida-barebone-ios/iPhone11_8_iPhone12_1_14.0_18A5351d_Restore/kernelcache.research.iphone12b",
     "base": "0xfffffff007004000",
     "symbols": {

src/barebone/agent/explore.ts

@@ -5,6 +5,6 @@ const cm = new CModule(File.readAllBytes("./target/aarch64-unknown-none/release/
 const start = new NativeFunction(cm._start, "pointer", []);
 const bufferPhysicalAddress = start();
 console.log("Ready! Buffer is at physical address:", bufferPhysicalAddress);
-$debugger.continue();
+$gdb.continue();
 
 Object.assign(globalThis, { cm, start });

src/barebone/agent/i686-unknown-none-pic.json

@@ -1,20 +0,0 @@
-{
-  "arch": "x86",
-  "cpu": "pentium4",
-  "crt-objects-fallback": "false",
-  "data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
-  "features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float",
-  "linker": "rust-lld",
-  "linker-flavor": "gnu-lld",
-  "llvm-target": "i686-unknown-none-elf",
-  "max-atomic-width": 64,
-  "panic-strategy": "abort",
-  "plt-by-default": false,
-  "position-independent-executables": true,
-  "relocation-model": "pic",
-  "rustc-abi": "softfloat",
-  "stack-probes": {
-    "kind": "inline"
-  },
-  "target-pointer-width": 32
-}

src/barebone/agent/i686-unknown-none.json

@@ -1,20 +0,0 @@
-{
-  "arch": "x86",
-  "cpu": "pentium4",
-  "crt-objects-fallback": "false",
-  "data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
-  "features": "-mmx,-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2,+soft-float",
-  "linker": "rust-lld",
-  "linker-flavor": "gnu-lld",
-  "llvm-target": "i686-unknown-none-elf",
-  "max-atomic-width": 64,
-  "panic-strategy": "abort",
-  "plt-by-default": true,
-  "position-independent-executables": false,
-  "relocation-model": "static",
-  "rustc-abi": "softfloat",
-  "stack-probes": {
-    "kind": "inline"
-  },
-  "target-pointer-width": 32
-}

src/barebone/agent/linux/Kbuild

@@ -1,28 +0,0 @@
-MODULE_NAME ?= frida-agent
-
-obj-m += $(MODULE_NAME).o
-
-# frida-agent-prelinked.o is not built from source here: it is the Rust agent, the
-# GumJS devkit and the C library collapsed into a single relocatable object by the prelink
-# step in Makefile. Copy it in through if_changed rather than kbuild's _shipped rule,
-# so the .cmd file modpost expects gets written.
-$(MODULE_NAME)-y := frida-kmod.o frida-agent-prelinked.o
-
-targets += frida-agent-prelinked.o
-
-quiet_cmd_frida_agent_prelinked = COPY    $@
-      cmd_frida_agent_prelinked = cp $< $@
-
-$(obj)/frida-agent-prelinked.o: $(src)/frida-agent-prelinked.o.bin FORCE
-	$(call if_changed,frida_agent_prelinked)
-
-# On x86 objtool validates every object going into a module and generates its ORC
-# unwind tables. It was not built to read a JavaScript runtime linked against a
-# freestanding libc: it gives up on the first Rust switch jump table it cannot
-# follow, and the tables would only ever describe frames no kernel stack trace walks
-# into. Both the blob and the module object it is linked into have to be excused,
-# since objtool runs over each.
-OBJECT_FILES_NON_STANDARD_frida-agent-prelinked.o := y
-OBJECT_FILES_NON_STANDARD_$(MODULE_NAME).o := y
-
-ccflags-y += $(FRIDA_KMOD_DEFS)

src/barebone/agent/linux/Makefile

@@ -1,206 +0,0 @@
-# Builds frida-agent.ko in two steps, because kbuild insists on owning the final
-# link:
-#
-#   1. Collapse the Rust staticlib plus everything it needs — the GumJS devkit and
-#      the C library — into one relocatable object, and localize every symbol except
-#      the entry points frida-kmod.c calls. Localizing matters: Gum and the C library
-#      define names like memcpy and malloc that must not leak into the kernel's
-#      namespace.
-#   2. Hand that object to kbuild as a shipped object, so vermagic, modinfo and
-#      CRCs all come from the target kernel's own build system.
-#
-# See README.md for usage.
-
-# KDIR is the kernel to build against. When it is a source tree that was configured
-# elsewhere — which is what Android's modules_prepare tarball gives — point KOUT at
-# the prepared tree.
-KDIR ?= /lib/modules/$(shell uname -r)/build
-PROFILE ?= release
-
-# The kernel's own name for the architecture, and the one Rust knows it by. Both
-# follow from the machine this is built for, which defaults to the one building.
-ARCH ?= $(shell uname -m \
-	| sed -e 's/^i[3-6]86$$/x86/' -e 's/^x86_64$$/x86/' -e 's/^aarch64$$/arm64/')
-BITS ?= $(shell uname -m \
-	| sed -e 's/^i[3-6]86$$/32/' -e 's/^x86_64$$/64/' -e 's/^aarch64$$/64/')
-
-ifeq ($(ARCH)-$(BITS),x86-32)
-RUST_TARGET ?= i686-unknown-none
-AGENT_TARGET_FLAGS ?= --target $(AGENT_DIR)/$(RUST_TARGET).json -Z json-target-spec
-SDK_ARCH ?= x86
-TOOLPREFIX ?=
-AGENT_LD_EMULATION ?= elf_i386
-else ifeq ($(ARCH)-$(BITS),x86-64)
-RUST_TARGET ?= x86_64-unknown-none
-SDK_ARCH ?= x86_64
-TOOLPREFIX ?=
-AGENT_LD_EMULATION ?= elf_x86_64
-else ifeq ($(ARCH)-$(BITS),arm64-64)
-RUST_TARGET ?= aarch64-unknown-none
-SDK_ARCH ?= arm64
-TOOLPREFIX ?= aarch64-none-elf-
-else
-$(error Unsupported ARCH "$(ARCH)" and BITS "$(BITS)"; this flavour covers \
-	x86/32, x86/64 and arm64/64)
-endif
-AGENT_TARGET_FLAGS ?= --target $(RUST_TARGET)
-
-AGENT_DIR := $(CURDIR)/..
-AGENT_TARGET_DIR := $(AGENT_DIR)/target-linux
-AGENT_LIB := $(AGENT_TARGET_DIR)/$(RUST_TARGET)/$(PROFILE)/libfrida_barebone_agent.a
-
-GUMJS_DEVKIT_DIR ?= $(error Set GUMJS_DEVKIT_DIR to the directory holding libfrida-gumjs.a)
-
-# Any binutils that speak the target's ELF will do; nothing here is compiled with
-# them. Building for the host's own architecture, that is the host's binutils.
-AGENT_LD ?= $(TOOLPREFIX)ld
-AGENT_AR ?= $(TOOLPREFIX)ar
-AGENT_NM ?= $(TOOLPREFIX)nm
-AGENT_OBJCOPY ?= $(TOOLPREFIX)objcopy
-
-# The ABI the kernel imposes on anything linked into it. The flags only reach crates
-# Cargo compiles, and the toolchain ships core, alloc and compiler_builtins prebuilt
-# without them, so those three have to be rebuilt from source as well. That needs the
-# rust-src component and an unstable flag, hence RUSTC_BOOTSTRAP.
-#
-# On x86_64 that is endbr64 on every address-taken function, since a kernel with
-# CONFIG_X86_KERNEL_IBT faults an indirect call landing anywhere else, and switches
-# compiled as comparisons rather than jump tables, which objtool cannot follow into.
-# Soft-float, the kernel code model and the absent red zone come with the target
-# itself. On arm64
-# it is x18, which the kernel reserves for the shadow call stack, so nothing linked in
-# may use it as a general-purpose register.
-ifeq ($(ARCH)-$(BITS),x86-32)
-AGENT_RUSTFLAGS ?=
-AGENT_CFLAGS ?= --target=i386-none-elf \
-	-Xclang -target-feature -Xclang +soft-float -mno-mmx -mno-sse \
-	-mlong-double-64 -fno-pic --sysroot=$(FRIDA_SDK)
-else ifeq ($(ARCH)-$(BITS),x86-64)
-AGENT_RUSTFLAGS ?= -Zcf-protection=branch \
-	-Cllvm-args=--min-jump-table-entries=65536 \
-	-Crelocation-model=static -Zplt=yes
-AGENT_CFLAGS ?= --target=x86_64-none-elf \
-	-Xclang -target-feature -Xclang +soft-float -mno-mmx -mno-sse -mno-red-zone \
-	-mlong-double-64 -mcmodel=kernel -fcf-protection=branch -fno-jump-tables \
-	-fno-pic --sysroot=$(FRIDA_SDK)
-else
-AGENT_RUSTFLAGS ?= -Zfixed-x18
-AGENT_CFLAGS ?= --target=aarch64-none-elf -mabi=aapcs-soft -mgeneral-regs-only \
-	-ffixed-x18 -fno-pic --sysroot=$(FRIDA_SDK)
-endif
-AGENT_BUILD_STD ?= -Z build-std=core,alloc,compiler_builtins
-
-# The devkit header reaches for GLib's and capstone's, which a devkit built against
-# an SDK leaves in that SDK rather than beside itself. The sysroot's own include
-# directory is spelled out because only clang's bare-metal driver, which it selects
-# for arm64 but not for x86_64, searches there on its own.
-AGENT_CFLAGS += -isystem $(FRIDA_SDK)/include \
-	-I$(FRIDA_SDK)/include/glib-2.0 \
-	-I$(FRIDA_SDK)/lib/glib-2.0/include \
-	-I$(FRIDA_SDK)/include/capstone \
-	-I$(FRIDA_SDK)/include/json-glib-1.0
-
-# The soft-float SDK, whose libc is picolibc and whose compiler runtime is
-# compiler-rt. GCC's own newlib and libgcc are hard-float and cannot be used here.
-FRIDA_SDK ?= $(error Set FRIDA_SDK to a none-$(SDK_ARCH)-softfloat_nopic SDK prefix)
-LIBM = $(FRIDA_SDK)/lib/libm.a
-LIBBUILTINS = $(FRIDA_SDK)/lib/libclang_rt.builtins.a
-
-# bindgen reads the devkit header through whatever this compiler reports as its
-# include path, so it has to be one that knows where the SDK keeps its libc. It has
-# to be clang either way: -mabi=aapcs-soft landed there in 19 and GCC has it at no
-# version, and on x86_64 the soft-float ABI is reachable only as an -Xclang feature.
-AGENT_CC ?= clang
-
-PRELINKED := frida-agent-prelinked.o.bin
-
-AGENT_LIB_SOFTFLOAT := $(AGENT_TARGET_DIR)/libfrida-barebone-agent-softfloat.a
-
-# On arm64 the toolchain's own compiler_builtins is compiled for the ordinary AAPCS,
-# where a double travels in d0: its __muldf3 opens with "fmov x14, d0". Everything
-# else there is -mabi=aapcs-soft and passes that same double in x0. Whole-archiving
-# the staticlib puts those definitions in front of the SDK's compiler-rt, which has
-# the soft-float ones, and every double the C library computes then comes back
-# garbage — quietly, since the arithmetic still runs. Drop them and let compiler-rt
-# answer instead. x86_64 needs none of this: soft-float is part of the Rust target
-# there, so the copy build-std compiles already passes doubles the way the C half
-# expects.
-ifeq ($(ARCH),arm64)
-DROP_HARDFLOAT_BUILTINS = \
-	$(AGENT_AR) d $@ $$($(AGENT_NM) --print-armap $@ | sed -n 's/^__muldf3 in //p') && \
-	$(AGENT_AR) s $@
-else
-DROP_HARDFLOAT_BUILTINS = :
-endif
-
-# The agent puts malloc, the C library's locks and its process stubs on the kernel's
-# own facilities, so picolibc's versions are duplicate definitions rather than
-# fallbacks. Work out which members they live in instead of naming them: the set
-# follows from what the agent defines, and picolibc moves things between releases.
-LIBC := $(AGENT_TARGET_DIR)/libc-trimmed.a
-
-ENTRY_POINTS := frida_agent_start frida_agent_stop \
-	gum_interceptor_obtain gum_interceptor_begin_transaction \
-	gum_interceptor_end_transaction gum_interceptor_replace \
-	gum_interceptor_revert
-KEEP_GLOBAL := $(foreach s,$(ENTRY_POINTS),--keep-global-symbol=$(s))
-
-# Two structures the reparenting path reaches into lost a member upstream, and
-# neither change announces itself as anything frida-kmod.c could test for. The
-# headers it is compiled against are the authority on both, so ask them.
-FRIDA_KMOD_DEFS := \
-	$(if $(shell grep -l 'list_head[[:space:]]*thread_group;' \
-		$(KDIR)/include/linux/sched.h),-DFRIDA_HAVE_TASK_THREAD_GROUP) \
-	$(if $(shell grep -l 'spinlock_t[[:space:]]*lock;' \
-		$(KDIR)/include/linux/fs_struct.h),-DFRIDA_HAVE_FS_STRUCT_LOCK)
-
-all: modules
-
-# A module that dies in its init path is left wedged under its own name until the
-# next boot, so bring-up wants a fresh one per attempt.
-MODULE_NAME ?= frida-agent
-
-modules: $(PRELINKED)
-	$(MAKE) -C $(KDIR) $(if $(KOUT),O=$(KOUT)) M=$(CURDIR) ARCH=$(ARCH) \
-		FRIDA_KMOD_DEFS="$(FRIDA_KMOD_DEFS)" MODULE_NAME=$(MODULE_NAME) modules
-
-$(PRELINKED): $(AGENT_LIB_SOFTFLOAT) $(LIBC) prelink.lds
-	$(AGENT_LD) -r $(if $(AGENT_LD_EMULATION),-m $(AGENT_LD_EMULATION)) \
-		-T prelink.lds -o $@.tmp \
-		--whole-archive $(AGENT_LIB_SOFTFLOAT) --no-whole-archive \
-		--start-group \
-			$(GUMJS_DEVKIT_DIR)/libfrida-gumjs.a \
-			$(LIBC) \
-			$(LIBM) \
-			$(LIBBUILTINS) \
-		--end-group
-	$(AGENT_OBJCOPY) $(KEEP_GLOBAL) --strip-debug \
-		--remove-section=.llvmbc --remove-section=.llvmcmd $@.tmp $@
-	rm -f $@.tmp
-
-$(AGENT_LIB_SOFTFLOAT): agent
-	cp $(AGENT_LIB) $@
-	$(DROP_HARDFLOAT_BUILTINS)
-
-$(LIBC): export LC_ALL = C
-$(LIBC): $(AGENT_LIB_SOFTFLOAT)
-	cp $(FRIDA_SDK)/lib/libc.a $@
-	$(AGENT_NM) --defined-only $(AGENT_LIB_SOFTFLOAT) \
-		| awk 'NF == 3 && $$2 ~ /^[TDBR]$$/ { print $$3 }' | sort -u > $@.agent-syms
-	$(AGENT_NM) --print-armap $@ | sed -n 's/^\([^ ]*\) in \(.*\)$$/\1 \2/p' | sort -u > $@.members
-	$(AGENT_AR) d $@ $$(join $@.agent-syms $@.members | awk '{ print $$2 }' | sort -u)
-	$(AGENT_AR) s $@
-	rm -f $@.agent-syms $@.members
-
-agent:
-	cd $(AGENT_DIR) && RUSTC_BOOTSTRAP=1 RUSTFLAGS="$(AGENT_RUSTFLAGS)" \
-		CC_$(subst -,_,$(RUST_TARGET))="$(AGENT_CC) $(AGENT_CFLAGS)" \
-		cargo build --$(PROFILE) \
-		$(AGENT_TARGET_FLAGS) --features linux \
-		--target-dir $(AGENT_TARGET_DIR) $(AGENT_BUILD_STD)
-
-clean:
-	$(MAKE) -C $(KDIR) $(if $(KOUT),O=$(KOUT)) M=$(CURDIR) ARCH=$(ARCH) clean
-	rm -f $(PRELINKED) $(PRELINKED).tmp $(AGENT_LIB_SOFTFLOAT) $(LIBC)
-
-.PHONY: all modules agent clean

src/barebone/agent/linux/README.md

@@ -1,291 +0,0 @@
-# Linux kernel module
-
-The same agent that the Barebone backend injects into XNU from the outside, but
-loaded from the inside as an ordinary kernel module.
-
-## How it differs from the XNU flavor
-
-|                   | XNU                                              | Linux                                     |
-|-------------------|--------------------------------------------------|-------------------------------------------|
-| Delivery          | remote stub injects a freestanding ELF           | `insmod frida-agent.ko`                   |
-| Kernel primitives | addresses patched into `.kernel_addrs` by the host | direct calls into `frida-kmod.c`        |
-| Bootstrap config  | GVariant blob written into guest memory          | module parameters                         |
-| Transport         | virtio hostlink or vsock                         | `/dev/frida` character device             |
-| Page permissions  | host rewrites descriptors over the hostlink      | `set_memory_*()`                          |
-| Writable alias    | shadow copy, committed via physical-memory bridge | `vmap()` of the same pages               |
-| Symbols           | table supplied by the host                       | kallsyms                                  |
-
-Because the Linux agent performs its own memory work, it never issues the
-`RemapWritablePages`, `MemoryProtect` or `PatchCode` host RPCs. The wire protocol
-is otherwise identical, so the host side sees the same `(yqv)` frames.
-
-## Building
-
-Four inputs: this repository, a GumJS devkit built for
-`none-<arch>-softfloat_nopic`, the SDK it was built against, and the kernel the module is for. `Makefile`
-covers x86_64 and arm64, and defaults to the architecture of the machine building.
-
-Building for the running kernel is a good deal shorter than cross-building for a
-device, so that walkthrough comes first; the arm64 one below it is the same steps
-with the kernel obtained from elsewhere.
-
-### Toolchain
-
-    rustup target add x86_64-unknown-none    # or aarch64-unknown-none
-    rustup component add rust-src
-    sudo dnf install clang binutils kernel-devel-$(uname -r)
-
-clang must be 19 or newer, since that is where `-mabi=aapcs-soft` landed; GCC does
-not implement it at any version, nor does it reach x86_64's soft-float ABI. The
-binutils are for the prelink, which reads the archive map that only GNU `nm` prints —
-the LLVM one does not; cross-building wants the target's, natively the host's own
-will do. The host compiler is for Cargo's own build scripts, which run on the machine
-doing the building.
-
-The commands below are run from the top of this repository, with `releng` checked
-out — `git submodule update --init releng` if the clone did not recurse.
-
-### For the running x86_64 kernel
-
-No prebuilt bundles are published for `none-x86_64-softfloat_nopic`, so both inputs are
-built locally, against the same SDK:
-
-    releng/deps.py build --bundle=sdk --host=none-x86_64-softfloat_nopic
-    mkdir -p ~/sdk-none-x86_64-softfloat_nopic
-    tar -C ~/sdk-none-x86_64-softfloat_nopic -xf deps/sdk-none-x86_64-softfloat_nopic.tar.xz
-
-    gum=subprojects/frida-gum
-    mkdir -p $gum/build/none-x86_64-softfloat_nopic
-    (cd $gum/build/none-x86_64-softfloat_nopic \
-        && FRIDA_DEPS=$PWD/../../../../deps ../../configure \
-            --host=none-x86_64-softfloat_nopic \
-            --enable-gumjs \
-            --with-devkits=gumjs \
-            --with-devkit-symbol-scope=original \
-        && make)
-
-    make -C src/barebone/agent/linux \
-        FRIDA_SDK=$HOME/sdk-none-x86_64-softfloat_nopic \
-        GUMJS_DEVKIT_DIR=$PWD/$gum/build/none-x86_64-softfloat_nopic/bindings/gumjs/devkit
-
-Everything else — `KDIR`, the Rust target, the binutils, the kernel's own name for the
-architecture — follows from the running kernel.
-
-### For an arm64 device
-
-Here there are published bundles to start from, and the kernel has to be assembled.
-
-#### The devkit and the SDK
-
-    version=17.17.0
-    base=https://github.com/frida/frida/releases/download/$version
-    curl -LO $base/frida-gumjs-devkit-$version-none-arm64-softfloat_nopic.tar.xz
-    mkdir -p ~/gumjs-devkit
-    tar -C ~/gumjs-devkit -xf frida-gumjs-devkit-$version-none-arm64-softfloat_nopic.tar.xz
-
-    releng/deps.py sync sdk none-arm64-softfloat_nopic ~/sdk-none-arm64-softfloat_nopic
-
-The SDK carries picolibc and the compiler-rt builtins the devkit expects to be linked
-against, and `releng/deps.toml` pins which one. Mixing a devkit with an SDK built for
-a different libc leaves undefined symbols at prelink time.
-
-#### The kernel
-
-Nothing here needs the device's own kernel to be built, but the config alone is not
-enough either. `uname -r` ends in the GKI commit and the build number:
-
-    adb shell uname -r
-    6.1.145-android14-11-gc1de4747ac59-ab14219743
-
-which is commit `c1de4747ac59` and build `14219743`. Three pieces are keyed to them:
-
-    commit=c1de4747ac59
-    build=14219743
-    ci=https://ci.android.com/builds/submitted/$build/kernel_aarch64/latest/raw
-
-    mkdir -p ~/kernel-prepared ~/kernel-source
-    curl -sSL $ci/modules_prepare_outdir.tar.gz | tar -xz -C ~/kernel-prepared
-    curl -sSL $ci/kernel_aarch64_Module.symvers -o ~/kernel-prepared/Module.symvers
-    curl -sSL https://android.googlesource.com/kernel/common/+archive/$commit.tar.gz \
-        | tar -xz -C ~/kernel-source
-
-`modules_prepare_outdir.tar.gz` is the configured build tree with `scripts/` already
-compiled as x86-64 binaries, so the kbuild half has to run on an x86-64 Linux host —
-an arm64 one gets as far as `CC [M]` and then fails to run `fixdep`. `Module.symvers`
-carries the CRCs `CONFIG_MODVERSIONS` checks. The top-level `Makefile` in that prepared tree is a stub
-that includes the source's, hence both `KDIR` and `KOUT` below.
-
-A different GKI build of the same branch does not substitute for these: vermagic is
-compared verbatim, and it names the exact build.
-
-#### Build
-
-    make -C src/barebone/agent/linux \
-        FRIDA_SDK=$HOME/sdk-none-arm64-softfloat_nopic \
-        GUMJS_DEVKIT_DIR=$HOME/gumjs-devkit \
-        AGENT_LD=aarch64-linux-gnu-ld \
-        AGENT_AR=aarch64-linux-gnu-ar \
-        AGENT_NM=aarch64-linux-gnu-nm \
-        AGENT_OBJCOPY=aarch64-linux-gnu-objcopy \
-        KDIR=$HOME/kernel-source \
-        KOUT=$HOME/kernel-prepared \
-        LLVM=1
-
-`make` builds the Rust staticlib itself, prelinks it against the devkit and the SDK,
-then hands the result to kbuild. The `AGENT_*` overrides are only needed because the
-defaults name an `aarch64-none-elf-` GNU toolchain; drop them if that is what is
-installed.
-
-The prelink half runs anywhere; the kbuild half needs the x86-64 Linux host above.
-Cross-building from macOS means running that step in a container holding the kernel
-tree.
-
-    adb push src/barebone/agent/linux/frida-agent.ko /data/local/tmp/
-
-## Loading
-
-    insmod frida-agent.ko
-
-The module's init path returns as soon as the worker thread is running — watch
-`dmesg` for `frida: listening on /dev/frida`. `rmmod frida-agent` unwinds in the
-reverse order and does not return until the worker is off the module's text.
-
-## Talking to it
-
-The agent exposes `/dev/frida` and waits: one client at a time, `read`/`write` of the
-same length-prefixed frames the other transports carry, with `poll` for readiness.
-It never dials out, so there is no network namespace to get right and no ordering
-requirement between loading the module and attaching a client.
-
-On Android the node is created by devtmpfs without a policy-specific label, so an
-SELinux-enforcing system needs the client's domain granted access to it before it can
-open the device. A socket-based transport was the other option considered and is a
-worse fit: `AF_VSOCK` only reaches a peer when a hypervisor is on the other side, and
-having the kernel connect out to loopback needs something already listening before
-the module loads.
-
-### Reaching it from a host
-
-Serve the Barebone device from a frida-server running on the target, so the `open()`
-happens next to the device node and the host talks to an ordinary frida-server:
-
-    FRIDA_BAREBONE_CONFIG=/data/local/tmp/linux-kmod.json \
-        frida-server --device barebone -l 127.0.0.1:27042
-
-`etc/linux-kmod.json` is that config. From the host, with `adb forward tcp:27042
-tcp:27042` in place:
-
-    frida -H 127.0.0.1:27042 -p 0
-
-## Injecting into userspace
-
-Loaded on a live system the module doubles as a ptrace-free injector for ordinary
-processes — how the Linux local backend reaches its targets when the module is
-present, falling back to `ptrace` when it is not. There is no second device node;
-the channel is `prctl()` with a magic option and a token in the fifth argument,
-
-    prctl(0x46524944, op, arg1, arg2, 0x1d5f9e6b2c7a4038)
-
-and any call whose option or token does not match falls through to the real
-prctl, so probing for the module looks like a stock kernel. `op` 32 pings and
-returns the magic.
-
-Allocate, free, read, write and spawn — the primitives the injector drives
-against a target pid — require `CAP_SYS_ADMIN`. A spawned thread is a real
-`CLONE_THREAD` sibling that adopts the target's mm, files, credentials,
-namespaces, fs and SysV semaphore undo list, so it is a native member of the
-group rather than a kernel thread wearing its address space.
-
-Cloaking is Gum's own registry mirrored into the kernel so it holds against
-`/proc` too: the module intercepts the `maps`, `smaps`, task and status readers
-and drops cloaked threads, ranges and fds while keeping the counts consistent. A
-process cloaks its own resources with the token alone — no capability — so an
-injected agent self-cloaks by forwarding Gum's updates over the same channel,
-and the loader adds the footprint the agent itself never sees. A cloaked thread
-still sees through the cloak when it reads `/proc`, so the agent is not blind to
-its own process.
-
-## What the target kernel has to provide
-
-- **x86_64 or arm64.** The register-level pieces — the page size, cache maintenance,
-  where the syscall ABI leaves prctl()'s arguments, and how a spawned thread's
-  registers are set up for its return to userspace — have a half for each. The XNU
-  flavor remains arm64-only.
-- **`CONFIG_KPROBES` and `CONFIG_KALLSYMS_ALL`.** A good deal of what the shim
-  needs is compiled in but not exported — `kallsyms_lookup_name`,
-  `kallsyms_on_each_symbol` and `set_memory_*` all are, and GKI trims its export
-  table to the KMI symbol list on top of that. The shim resolves them by name
-  through a kprobe, which is the standard way back in. Without kallsyms the module
-  still loads but cannot look up symbols or change page permissions.
-- **Unsigned modules.** `CONFIG_MODULE_SIG_FORCE` must be off. Android's
-  `CONFIG_MODULE_SIG_PROTECT` is fine: it only demands signatures for modules on
-  the GKI list.
-
-## Kernel ABI constraints
-
-A hardened kernel imposes an ABI on anything linked into it, and the FP constraint
-below is why this flavor is built against a soft-float SDK
-(`none-arm64-softfloat_nopic`, `none-x86_64-softfloat_nopic`) rather than an ordinary
-bare-metal one. The remaining constraints are per-architecture.
-
-- **FP/SIMD.** JavaScript numbers are doubles, so a hardfloat build would use FP
-  for as long as the runtime lives, and neither architecture lets a kernel thread
-  hold it for free — x86 wants every stretch bracketed by `kernel_fpu_begin()`, and
-  on arm64 kernels before 6.9 there is no correct way to hold it at all:
-  `kernel_neon_begin()` runs with preemption disabled so we cannot sleep under it,
-  and the scheduler does not save a kernel thread's FP registers — live values are
-  lost on preemption and the FP state of whichever user task was interrupted is
-  corrupted. Building everything soft-float removes the question rather than
-  answering it: `-mabi=aapcs-soft -mgeneral-regs-only` on arm64, and on x86_64
-  LLVM's `+soft-float`, which is also what Rust's own `x86_64-unknown-none` turns
-  on, so the two halves agree on where a double travels. `-mno-sse` alone does not
-  reach the ABI; and `long double` has to be narrowed to 64 bits with
-  `-mlong-double-64`, since soft-float has no lowering for x87's 80-bit format and
-  LLVM crashes rather than calling out to a builtin.
-- **Indirect branch tracking (x86_64).** With `CONFIG_X86_KERNEL_IBT` an indirect
-  call landing on anything but an `endbr64` faults, so everything linked in is built
-  `-fcf-protection=branch` and the Rust half `-Zcf-protection=branch`.
-- **Kernel code model and red zone (x86_64).** Modules are loaded into the top 2GB
-  of the address space and their relocations are resolved as if by `-mcmodel=kernel`,
-  and there is no red zone below the stack pointer for an interrupt to step on. Both
-  come with the Rust target; the C half is told explicitly.
-- **objtool (x86_64).** It validates every object entering a module and builds its
-  ORC unwind tables, and was not written to read a JavaScript runtime linked against
-  a freestanding libc. `Kbuild` marks the prelinked blob `OBJECT_FILES_NON_STANDARD`.
-- **Shadow call stack (arm64).** With `CONFIG_SHADOW_CALL_STACK` the kernel reserves x18, so
-  the SDK and Gum are built `-ffixed-x18` and the Rust half with `-Zfixed-x18`.
-  Anything linked in that uses x18 as a scratch register overwrites the kernel's SCS
-  pointer, and the thread then returns through whatever that address happens to hold.
-
-  The Rust flag only reaches crates Cargo compiles, so `core`, `alloc` and
-  `compiler_builtins` — which the toolchain ships prebuilt, and which between them
-  account for every x18 write that used to reach the module — are rebuilt from source
-  via `-Z build-std`. That needs `rustup component add rust-src`.
-
-## The soft-float libc
-
-The libc is picolibc and the compiler runtime is compiler-rt, both from the
-soft-float SDK that `FRIDA_SDK` points at. `Makefile` trims a copy of its
-`libc.a` before the prelink: the agent implements `malloc`, the C library's locks and
-its process stubs over the kernel's own facilities, so picolibc's are duplicate
-definitions rather than fallbacks. The set is derived from what the agent defines
-rather than listed, since picolibc moves things between releases.
-
-On arm64 those compiler-rt builtins are load-bearing in a way that is easy to miss.
-Rust's toolchain carries its own `compiler_builtins`, compiled for the ordinary AAPCS
-where a double travels in `d0`, and the prelink whole-archives the Rust staticlib — so
-without the filtering step in `Makefile` those definitions answer the C library's calls
-to `__muldf3` and friends, which pass the same double in `x0`. Nothing crashes. The
-arithmetic simply returns garbage, and the first thing to notice is GLib deciding a
-hash table need not grow. x86_64 needs none of that filtering: soft-float is part of
-the Rust target there, so the copy `-Z build-std` compiles already agrees with the C
-half.
-
-## What a script may look like
-
-The runtime compiles scripts on a kernel thread's stack, and QuickJS parses
-expressions by recursion, so the ceiling is nesting rather than length: roughly
-fourteen levels of parentheses or fifteen of object literals on arm64 Linux, whose
-kernel stack is 16 KiB — as is x86_64's. A script that exceeds it fails to compile rather than taking
-anything down, though the message is not always `stack overflow` — an over-deep
-`if`/`else` chain reports `expecting ';'`. Long scripts are fine; deep ones are not.

src/barebone/agent/linux/prelink.lds

@@ -1,8 +0,0 @@
-SECTIONS
-{
-  .init_array 0 : {
-    _agent_init_start = .;
-    *(.init_array*)
-    _agent_init_end = .;
-  }
-}

src/barebone/agent/macos/.gitignore

@@ -1,4 +0,0 @@
-/frida-agent
-/frida-agent.kext/
-/frida-kext.o
-/frida-signing.o

src/barebone/agent/macos/Info.plist

@@ -1,37 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-<dict>
-	<key>CFBundleDevelopmentRegion</key>
-	<string>en</string>
-	<key>CFBundleExecutable</key>
-	<string>frida-agent</string>
-	<key>CFBundleIdentifier</key>
-	<string>re.frida.agent</string>
-	<key>CFBundleInfoDictionaryVersion</key>
-	<string>6.0</string>
-	<key>CFBundleName</key>
-	<string>frida-agent</string>
-	<key>CFBundlePackageType</key>
-	<string>KEXT</string>
-	<key>CFBundleShortVersionString</key>
-	<string>@FRIDA_VERSION@</string>
-	<key>CFBundleVersion</key>
-	<string>@BUNDLE_VERSION@</string>
-	<key>OSBundleRequired</key>
-	<string>Root</string>
-	<key>OSBundleLibraries</key>
-	<dict>
-		<key>com.apple.kpi.bsd</key>
-		<string>12.0</string>
-		<key>com.apple.kpi.libkern</key>
-		<string>12.0</string>
-		<key>com.apple.kpi.iokit</key>
-		<string>12.0</string>
-		<key>com.apple.kpi.mach</key>
-		<string>12.0</string>
-		<key>com.apple.kpi.unsupported</key>
-		<string>12.0</string>
-	</dict>
-</dict>
-</plist>

src/barebone/agent/macos/Makefile

@@ -1,88 +0,0 @@
-
-PROFILE ?= release
-ARCH ?= arm64e
-
-ifeq ($(ARCH),arm64e)
-RUST_TARGET ?= arm64e-apple-darwin
-CLANG_TARGET ?= arm64e-apple-macos11
-else ifeq ($(ARCH),arm64)
-RUST_TARGET ?= aarch64-apple-darwin
-CLANG_TARGET ?= arm64-apple-macos11
-else
-RUST_TARGET ?= x86_64-apple-darwin
-CLANG_TARGET ?= x86_64-apple-macos11
-endif
-
-AGENT_DIR := $(CURDIR)/..
-AGENT_TARGET_DIR := $(AGENT_DIR)/target-xnu-kext
-AGENT_LIB := $(AGENT_TARGET_DIR)/$(RUST_TARGET)/$(PROFILE)/libfrida_barebone_agent.a
-
-SDK ?= $(shell xcrun --sdk macosx --show-sdk-path)
-KERNEL_HEADERS := $(SDK)/System/Library/Frameworks/Kernel.framework/Headers
-
-FRIDA_VERSION := $(or $(FRIDA_VERSION),0.0.0)
-BUNDLE_VERSION := $(firstword $(subst -, ,$(FRIDA_VERSION)))
-
-FRIDA_SDK ?= $(error Set FRIDA_SDK to a macos-$(ARCH)-kernel SDK prefix)
-GUMJS_DEVKIT_DIR ?= $(error Set GUMJS_DEVKIT_DIR to the directory holding libfrida-gumjs.a)
-
-AGENT_RUSTFLAGS ?= -Cembed-bitcode=no
-AGENT_BUILD_STD ?= -Z build-std=core,alloc,compiler_builtins
-
-GLUE_CFLAGS ?= -target $(CLANG_TARGET) -isysroot $(SDK) -I$(KERNEL_HEADERS) \
-	-mkernel -fno-builtin -fno-common -nostdinc -std=gnu11 \
-	-DKERNEL -DKERNEL_PRIVATE -DAPPLE -D__MACHO__=1
-
-AGENT_CC ?= clang -target $(CLANG_TARGET) -mkernel -nostdlibinc \
-	-isystem $(FRIDA_SDK)/include \
-	-I$(FRIDA_SDK)/include/glib-2.0 \
-	-I$(FRIDA_SDK)/lib/glib-2.0/include \
-	-I$(FRIDA_SDK)/include/capstone \
-	-I$(FRIDA_SDK)/include/json-glib-1.0
-
-stamp_version = sed -e 's/@FRIDA_VERSION@/$(FRIDA_VERSION)/' \
-	-e 's/@BUNDLE_VERSION@/$(BUNDLE_VERSION)/' Info.plist
-
-BUNDLE := frida-agent.kext
-BINARY := $(BUNDLE)/Contents/MacOS/frida-agent
-
-all: $(BUNDLE)
-
-skeleton: frida-kext.o Info.plist
-	mkdir -p $(BUNDLE)/Contents/MacOS
-	$(stamp_version) > $(BUNDLE)/Contents/Info.plist
-	$(shell xcrun --find ld) -kext -arch $(ARCH) -o $(BINARY) frida-kext.o
-
-$(BUNDLE): frida-agent Info.plist
-	mkdir -p $(BUNDLE)/Contents/MacOS
-	$(stamp_version) > $(BUNDLE)/Contents/Info.plist
-	cp frida-agent $(BINARY)
-
-frida-agent: frida-kext.o frida-signing.o agent
-	$(shell xcrun --find ld) -kext -arch $(ARCH) -o $@ \
-		frida-kext.o \
-		frida-signing.o \
-		$(AGENT_LIB) \
-		$(GUMJS_DEVKIT_DIR)/libfrida-gumjs.a \
-		$(FRIDA_SDK)/lib/libc.a \
-		$(FRIDA_SDK)/lib/libm.a \
-		$(FRIDA_SDK)/lib/libclang_rt.builtins.a
-
-frida-kext.o: frida-kext.c
-	$(shell xcrun --find clang) $(GLUE_CFLAGS) -c $< -o $@
-
-frida-signing.o: frida-signing.c
-	$(AGENT_CC) -I$(GUMJS_DEVKIT_DIR) -c $< -o $@
-
-agent:
-	cd $(AGENT_DIR) && RUSTC_BOOTSTRAP=1 RUSTFLAGS="$(AGENT_RUSTFLAGS)" \
-		CC_$(subst -,_,$(RUST_TARGET))="$(AGENT_CC)" \
-		GUMJS_DEVKIT_DIR="$(GUMJS_DEVKIT_DIR)" \
-		cargo build --$(PROFILE) \
-		--target $(RUST_TARGET) --features xnu-kext \
-		--target-dir $(AGENT_TARGET_DIR) $(AGENT_BUILD_STD)
-
-clean:
-	rm -rf $(BUNDLE) frida-agent frida-kext.o frida-signing.o
-
-.PHONY: all agent clean skeleton

src/barebone/agent/macos/README.md

@@ -1,123 +0,0 @@
-# The agent as a kext
-
-The XNU flavour of the barebone agent is ordinarily a blob: a host with a debugger writes it into
-a running kernel, tells it where that kernel keeps the things it calls, and starts it. The Linux
-flavour can also be built as a module the kernel loads (`../linux`), and this is the same thing for
-XNU -- a kext macOS loads.
-
-What the two packagings share is everything the agent does. What differs is how it is put there,
-how it is told about the kernel around it, and how the host reaches it.
-
-## Building
-
-Three things, in order. First an SDK for this kernel -- picolibc, GLib, QuickJS, capstone and the
-rest, built for `macos-arm64e-kernel` and published prebuilt:
-
-    cd frida-core
-    releng/deps.py sync sdk macos-arm64e-kernel ~/sdk-macos-arm64e-kernel
-
-It is built from the same sources every other flavour is, six of them pinned to a commit that
-says what a Darwin kernel is not; see below. Then a GumJS devkit against it:
-
-    cd frida-gum
-    ./configure --host=macos-arm64e-kernel --enable-gumjs --with-devkits=gumjs \
-        --with-devkit-symbol-scope=original
-    make
-
-Then the kext itself:
-
-    make FRIDA_SDK=~/sdk-macos-arm64e-kernel \
-         GUMJS_DEVKIT_DIR=.../frida-gum/build/bindings/gumjs/devkit
-
-which builds the agent as a static library for the kernel's ABI, `frida-kext.c` against the Kernel
-framework's headers, and links the two with the devkit into `frida-agent.kext`.
-
-`make skeleton` builds the glue alone, which is enough to check the pipeline without the rest.
-
-## How it is told about the kernel
-
-A kext may call what the kernel exports to kexts, and the agent calls a great deal more than that:
-`proc_find` and `copyin` are exported, `task_threads` and `mach_vm_allocate` are not. So the
-addresses arrive the way they do for the blob -- worked out by whoever knows this kernel -- and are
-written in through `/dev/frida` before the agent is started:
-
-    ioctl(fd, FRIDA_IOC_SET_ADDR, &(FridaAddrRequest){ .name = "task_threads", .address = ... });
-    ...
-    ioctl(fd, FRIDA_IOC_START);
-
-A name nothing writes stays zero, and the agent already answers for that: every one of them is an
-`Option` on the Rust side, and what needs it says so rather than calling through a null.
-
-Once started, the same device carries the frames: read what the agent says, write what the host
-says, framed with a four-byte little-endian length exactly as on every other transport.
-
-## What the sources needed
-
-An SDK for a Darwin kernel is a target nothing here had been built for, and six of the sources say
-so. Each is a commit of its own on the fork, a few lines apiece:
-
-- **picolibc** -- Mach-O has no `__attribute__((alias))`, so the aliasing macros fall through to
-  the assembler ones it already carries for Mach-O, and the names are spent before being spelled.
-  Its aarch64 assembly is written for ELF and its C stubs answer for it instead. The interrupt
-  vectors and the `exec` family are not built: one owns a machine this does not, the other crashes
-  the compiler.
-- **compiler-rt** -- `apple_versioning.c` is stubs for macOS releases long past, written against a
-  header only userspace has.
-- **libffi** -- the trampoline table is built out of what userspace has of Mach; whether that is
-  there is now asked of the header rather than of the system's name.
-- **QuickJS**, **tinycc** and **libiconv** -- all three ask what to do on Apple by asking whether
-  they are on Apple. Where that means userspace -- a userspace malloc's header, a cache-control
-  header, a locale one -- they now ask whether they are freestanding as well.
-
-## Which architecture, and where pointers are signed
-
-Apple silicon runs an arm64e kernel and loads nothing else, so that is what `ARCH` defaults to,
-and the SDK and the devkit are built for `macos-arm64e-kernel` to match.
-
-Pointer authentication is the thing to get right there, and what makes it awkward is that Rust's
-`arm64e-apple-darwin` is a tag rather than an ABI: it neither signs a function pointer nor
-authenticates one.
-
-    _pick:  adrp x0, 0 ; add x0, x0, #0x0 ; ret        <- no signing
-    _call:  mov x2, x0 ; mov x0, x1 ; br x2            <- no authenticating
-
-So the line is drawn where the kernel is, and not inside:
-
-- **Ourselves.** GLib, GumJS and the agent are built `-fno-ptrauth-calls`, so the C half calls a
-  Rust callback the way Rust hands it over -- plainly. Nothing there signs, so nothing there is
-  disappointed. `otool` says as much: not one `blraa` outside `__auth_stubs`.
-- **The kernel calling us.** The glue keeps the kernel's own ABI, so the device table it registers
-  is written with `AUTH` relocations and the loader signs it as the kernel expects.
-- **Us calling the kernel.** Through `__auth_stubs`, which the loader fills the same way.
-- **Us handing the kernel a function to call.** A thread's entry is the one that matters, and the
-  agent signs it itself, as it already does for the kernel it is injected into. What it signs with
-  is no longer written down twice: the glue derives the discriminator from the kernel's own
-  headers with `ptrauth_type_discriminator`, and asserts that it is the number the blob flavour
-  carries -- 0xd507 for a `thread_continue_t`, which is what it was.
-
-What this does not buy is pointer authentication *within* the kext, which is protection given up
-rather than correctness lost. Getting it back wants rustc to grow the ABI, or every callback
-wrapped in a C thunk.
-
-None of this touches x86_64, which has no pointer authentication at all: an Intel kext wants only
-its own SDK built the same way.
-
-## Floating point
-
-Every other kernel flavour is built soft-float, since a kernel does not save the floating-point
-registers across a trap. This one cannot be: Darwin has no soft-float C ABI on either
-architecture. arm64 refuses the type outright without one -- `ABI 'darwinpcs' does not support
-it` -- and `-mabi=aapcs-soft` alongside it crashes both Apple's clang and upstream LLVM on the
-first varargs function taking a double; x86_64 wants SSE to return one. A script engine is nothing
-but doubles, so the floating-point registers stay in play, and what that costs at run time is a
-thing to answer on the machine.
-
-## Putting copies into processes
-
-Not there yet. The blob's linker script marks out its own writable half and what a copy of it has
-to relocate; a kext is laid out by the kernel's loader instead, so the glue says there is nothing
-to copy from. Everything the agent does in the kernel itself is unaffected.
-
-Carrying the blob's ELF and placing it the way the host does is not a way round that, either: on a
-machine with SPTM, memory a kext allocates cannot be made executable, while a kext's own text is
-mapped executable by the kernel's loader because it was signed.

src/barebone/agent/macos/frida-kext.c

@@ -1,446 +0,0 @@
-
-#include <libkern/libkern.h>
-#include <mach/kmod.h>
-#include <mach/mach_types.h>
-#include <miscfs/devfs/devfs.h>
-#include <sys/conf.h>
-#include <sys/errno.h>
-#include <sys/ioccom.h>
-#include <sys/malloc.h>
-#include <sys/proc.h>
-#include <sys/random.h>
-#include <sys/uio.h>
-#include <kern/locks.h>
-#include <kern/thread.h>
-#include <ptrauth.h>
-
-extern int frida_agent_start (uint64_t own_base, uint64_t own_size);
-extern void frida_agent_stop (void);
-extern void frida_agent_wake (void);
-
-#define FRIDA_KERNEL_ADDRS(X) \
-  X (panic) \
-  X (kalloc) X (kfree) X (kalloc_data) X (kfree_data) \
-  X (proc_iterate) X (proc_find) X (proc_rele) X (proc_pid) X (proc_best_name) X (proc_task) \
-  X (current_task) X (current_thread) X (get_task_map) X (get_bsdtask_info) \
-  X (mach_vm_allocate) X (mach_vm_deallocate) X (mach_vm_protect) X (mach_vm_remap) \
-  X (kernel_map) X (kernel_pmap) X (pmap_find_phys) X (ml_static_ptovirt) \
-  X (mach_vm_region) X (mach_vm_region_recurse) \
-  X (vm_map_copyin) X (vm_map_copyout) X (vm_map_wire_external) \
-  X (thread_create) X (thread_set_state) X (thread_resume) X (thread_suspend) \
-  X (thread_terminate) X (kernel_thread_start) \
-  X (task_suspend) X (task_resume) X (task_clear_return_wait) X (task_threads) X (task_info) \
-  X (task_restartable_ranges_register) \
-  X (assert_wait) X (assert_wait_timeout) X (thread_block) X (thread_wakeup) \
-  X (thread_wakeup_prim) X (wakeup) X (ulock_wake) \
-  X (mach_absolute_time) X (absolutetime_to_nanoseconds) X (clock_get_calendar_microtime) \
-  X (ml_io_map) X (ml_vtophys) X (ml_static_vtop) \
-  X (copyin) X (copyout) X (sysent) X (IOLog) \
-  X (convert_port_to_thread) X (convert_port_to_thread_read) \
-  X (convert_port_to_thread_inspect) \
-  X (sock_socket) X (sock_connect) X (sock_send) X (sock_receive) X (sock_close)
-
-#define FRIDA_DEFINE_SLOT(name) void * _##name;
-FRIDA_KERNEL_ADDRS (FRIDA_DEFINE_SLOT)
-#undef FRIDA_DEFINE_SLOT
-
-typedef struct _FridaKernelAddr FridaKernelAddr;
-
-struct _FridaKernelAddr
-{
-  const char * name;
-  void ** slot;
-};
-
-static const FridaKernelAddr frida_kernel_addrs[] = {
-#define FRIDA_LIST_SLOT(name) { #name, &_##name },
-  FRIDA_KERNEL_ADDRS (FRIDA_LIST_SLOT)
-#undef FRIDA_LIST_SLOT
-};
-
-extern void * frida_kext_init_start __asm ("section$start$__DATA$__mod_init_func");
-extern void * frida_kext_init_end __asm ("section$end$__DATA$__mod_init_func");
-
-const uintptr_t frida_agent_init_start = (uintptr_t) &frida_kext_init_start;
-const uintptr_t frida_agent_init_end = (uintptr_t) &frida_kext_init_end;
-
-const uintptr_t frida_agent_private_start = 0;
-const uintptr_t frida_agent_heap_start = 0;
-const uintptr_t frida_agent_relocs_start = 0;
-const uintptr_t frida_agent_relocs_end = 0;
-
-typedef int (* FridaProcCallout) (proc_t process, void * argument);
-
-const unsigned frida_agent_disc_thread_continue =
-    ptrauth_type_discriminator (thread_continue_t);
-const unsigned frida_agent_disc_proc_callout =
-    ptrauth_type_discriminator (FridaProcCallout);
-
-_Static_assert (ptrauth_type_discriminator (thread_continue_t) == 0xd507,
-    "the agent signs a thread's entry with 0xd507");
-
-int
-getentropy (void * buffer, size_t size)
-{
-  read_random (buffer, (u_int) size);
-
-  return 0;
-}
-
-void
-sys_icache_invalidate (void * start, size_t size)
-{
-  flush_dcache ((vm_offset_t) start, (unsigned) size, FALSE);
-  invalidate_icache ((vm_offset_t) start, (unsigned) size, FALSE);
-}
-
-#define FRIDA_IOC_SET_ADDR _IOW ('F', 1, FridaAddrRequest)
-#define FRIDA_IOC_START _IO ('F', 2)
-#define FRIDA_IOC_GET_IMAGE _IOR ('F', 3, FridaImageInfo)
-
-typedef struct _FridaAddrRequest FridaAddrRequest;
-typedef struct _FridaImageInfo FridaImageInfo;
-
-struct _FridaAddrRequest
-{
-  char name[64];
-  uint64_t address;
-};
-
-struct _FridaImageInfo
-{
-  uint64_t base;
-  uint64_t size;
-};
-
-#define FRIDA_LINK_ROOM (1024 * 1024)
-
-typedef struct _FridaLink FridaLink;
-
-struct _FridaLink
-{
-  lck_mtx_t * lock;
-  bool open;
-
-  uint8_t * to_host;
-  size_t to_host_len;
-
-  uint8_t * from_host;
-  size_t from_host_len;
-};
-
-static FridaLink frida_link;
-static lck_grp_t * frida_lock_group;
-
-static int frida_dev_open (dev_t dev, int flags, int devtype, struct proc * p);
-static int frida_dev_close (dev_t dev, int flags, int devtype, struct proc * p);
-static int frida_dev_read (dev_t dev, struct uio * uio, int ioflag);
-static int frida_dev_write (dev_t dev, struct uio * uio, int ioflag);
-static int frida_dev_ioctl (dev_t dev, u_long cmd, caddr_t data, int fflag, struct proc * p);
-
-static struct cdevsw frida_cdevsw = {
-  .d_open = frida_dev_open,
-  .d_close = frida_dev_close,
-  .d_read = frida_dev_read,
-  .d_write = frida_dev_write,
-  .d_ioctl = frida_dev_ioctl,
-  .d_stop = eno_stop,
-  .d_reset = eno_reset,
-  .d_ttys = NULL,
-  .d_select = eno_select,
-  .d_mmap = eno_mmap,
-  .d_strategy = eno_strat,
-  .d_reserved_1 = eno_getc,
-  .d_reserved_2 = eno_putc,
-  .d_type = 0
-};
-
-static int frida_major = -1;
-static void * frida_node = NULL;
-static bool frida_running = false;
-static uint64_t frida_own_base = 0;
-static uint64_t frida_own_size = 0;
-
-kern_return_t
-frida_kext_start (kmod_info_t * ki, void * d)
-{
-  frida_own_base = ki->address;
-  frida_own_size = ki->size;
-
-  frida_lock_group = lck_grp_alloc_init ("frida", LCK_GRP_ATTR_NULL);
-  if (frida_lock_group == NULL)
-    return KERN_FAILURE;
-  frida_link.lock = lck_mtx_alloc_init (frida_lock_group, LCK_ATTR_NULL);
-
-  frida_major = cdevsw_add (-1, &frida_cdevsw);
-  if (frida_major == -1)
-    return KERN_FAILURE;
-
-  frida_node = devfs_make_node (makedev (frida_major, 0), DEVFS_CHAR, UID_ROOT, GID_WHEEL, 0600,
-      "frida");
-  if (frida_node == NULL)
-  {
-    cdevsw_remove (frida_major, &frida_cdevsw);
-    frida_major = -1;
-    return KERN_FAILURE;
-  }
-
-  return KERN_SUCCESS;
-}
-
-kern_return_t
-frida_kext_stop (kmod_info_t * ki, void * d)
-{
-  if (frida_running)
-  {
-    frida_agent_stop ();
-    frida_running = false;
-  }
-
-  if (frida_node != NULL)
-  {
-    devfs_remove (frida_node);
-    frida_node = NULL;
-  }
-
-  if (frida_major != -1)
-  {
-    cdevsw_remove (frida_major, &frida_cdevsw);
-    frida_major = -1;
-  }
-
-  return KERN_SUCCESS;
-}
-
-KMOD_EXPLICIT_DECL (re.frida.agent, "1.0", frida_kext_start, frida_kext_stop)
-
-static int
-frida_dev_open (dev_t dev, int flags, int devtype, struct proc * p)
-{
-  int result = 0;
-
-  lck_mtx_lock (frida_link.lock);
-
-  if (frida_link.open)
-  {
-    result = EBUSY;
-  }
-  else
-  {
-    frida_link.to_host = _MALLOC (FRIDA_LINK_ROOM, M_TEMP, M_WAITOK);
-    frida_link.from_host = _MALLOC (FRIDA_LINK_ROOM, M_TEMP, M_WAITOK);
-    if (frida_link.to_host != NULL && frida_link.from_host != NULL)
-    {
-      frida_link.to_host_len = 0;
-      frida_link.from_host_len = 0;
-      frida_link.open = true;
-    }
-    else
-    {
-      result = ENOMEM;
-    }
-  }
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return result;
-}
-
-static int
-frida_dev_close (dev_t dev, int flags, int devtype, struct proc * p)
-{
-  lck_mtx_lock (frida_link.lock);
-
-  frida_link.open = false;
-  if (frida_link.to_host != NULL)
-  {
-    _FREE (frida_link.to_host, M_TEMP);
-    frida_link.to_host = NULL;
-  }
-  if (frida_link.from_host != NULL)
-  {
-    _FREE (frida_link.from_host, M_TEMP);
-    frida_link.from_host = NULL;
-  }
-
-  wakeup (&frida_link);
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return 0;
-}
-
-static int
-frida_dev_read (dev_t dev, struct uio * uio, int ioflag)
-{
-  int result = 0;
-
-  lck_mtx_lock (frida_link.lock);
-
-  while (frida_link.open && frida_link.to_host_len == 0)
-  {
-    if (msleep (&frida_link, frida_link.lock, PCATCH, "frida", NULL) != 0)
-    {
-      lck_mtx_unlock (frida_link.lock);
-      return EINTR;
-    }
-  }
-
-  if (frida_link.to_host_len != 0)
-  {
-    size_t n = MIN ((size_t) uio_resid (uio), frida_link.to_host_len);
-
-    result = uiomove ((const char *) frida_link.to_host, (int) n, uio);
-    if (result == 0)
-    {
-      memmove (frida_link.to_host, frida_link.to_host + n, frida_link.to_host_len - n);
-      frida_link.to_host_len -= n;
-    }
-  }
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return result;
-}
-
-static int
-frida_dev_write (dev_t dev, struct uio * uio, int ioflag)
-{
-  size_t n;
-  int result;
-
-  lck_mtx_lock (frida_link.lock);
-
-  n = MIN ((size_t) uio_resid (uio), FRIDA_LINK_ROOM - frida_link.from_host_len);
-  if (n == 0)
-  {
-    lck_mtx_unlock (frida_link.lock);
-    return ENOBUFS;
-  }
-
-  result = uiomove ((char *) frida_link.from_host + frida_link.from_host_len, (int) n, uio);
-  if (result == 0)
-    frida_link.from_host_len += n;
-
-  lck_mtx_unlock (frida_link.lock);
-
-  if (result == 0 && frida_running)
-    frida_agent_wake ();
-
-  return result;
-}
-
-int
-frida_kmod_link_open (void)
-{
-  return frida_link.open ? 0 : -1;
-}
-
-void
-frida_kmod_link_close (void)
-{
-}
-
-int
-frida_kmod_link_send (const void * data, size_t size)
-{
-  lck_mtx_lock (frida_link.lock);
-
-  if (!frida_link.open || frida_link.to_host_len + size > FRIDA_LINK_ROOM)
-  {
-    lck_mtx_unlock (frida_link.lock);
-    return -1;
-  }
-
-  memcpy (frida_link.to_host + frida_link.to_host_len, data, size);
-  frida_link.to_host_len += size;
-
-  wakeup (&frida_link);
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return 0;
-}
-
-bool
-frida_kmod_link_pending (void)
-{
-  bool pending;
-
-  lck_mtx_lock (frida_link.lock);
-
-  pending = frida_link.from_host_len != 0;
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return pending;
-}
-
-ssize_t
-frida_kmod_link_recv (void * data, size_t size)
-{
-  size_t n;
-
-  lck_mtx_lock (frida_link.lock);
-
-  n = MIN (size, frida_link.from_host_len);
-  if (n != 0)
-  {
-    memcpy (data, frida_link.from_host, n);
-    memmove (frida_link.from_host, frida_link.from_host + n, frida_link.from_host_len - n);
-    frida_link.from_host_len -= n;
-  }
-
-  lck_mtx_unlock (frida_link.lock);
-
-  return (ssize_t) n;
-}
-
-static int
-frida_dev_ioctl (dev_t dev, u_long cmd, caddr_t data, int fflag, struct proc * p)
-{
-  switch (cmd)
-  {
-    case FRIDA_IOC_SET_ADDR:
-    {
-      FridaAddrRequest * r = (FridaAddrRequest *) data;
-      size_t i;
-
-      r->name[sizeof (r->name) - 1] = '\0';
-
-      for (i = 0; i != sizeof (frida_kernel_addrs) / sizeof (frida_kernel_addrs[0]); i++)
-      {
-        if (strncmp (frida_kernel_addrs[i].name, r->name, sizeof (r->name)) == 0)
-        {
-          *frida_kernel_addrs[i].slot = (void *) (uintptr_t) r->address;
-          return 0;
-        }
-      }
-
-      return ENOENT;
-    }
-    case FRIDA_IOC_GET_IMAGE:
-    {
-      FridaImageInfo * info = (FridaImageInfo *) data;
-
-      info->base = frida_own_base;
-      info->size = frida_own_size;
-
-      return 0;
-    }
-    case FRIDA_IOC_START:
-    {
-      if (frida_running)
-        return EBUSY;
-
-      if (frida_agent_start (frida_own_base, frida_own_size) != 0)
-        return ENOMEM;
-
-      frida_running = true;
-
-      return 0;
-    }
-    default:
-      return ENOTTY;
-  }
-}

src/barebone/agent/macos/frida-signing.c

@@ -1,5 +0,0 @@
-#include <frida-gumjs.h>
-#include <ptrauth.h>
-
-_Static_assert (ptrauth_type_discriminator (__typeof__ (((GSourceFuncs *) 0)->prepare))
-    == 0xe4fe, "the kernel's own ABI still discriminates by type");

src/barebone/agent/macos/patch-kernel.py

@@ -1,154 +0,0 @@
-#!/usr/bin/env python3
-"""Make a kernel the agent can write to and run code in."""
-import struct
-import sys
-
-NOP = 0xD503201F
-FORBIDS_BELOW = 0x3800
-ALLOWS_BELOW = 0x2000
-
-
-def main(source, destination):
-    image = bytearray(open(source, "rb").read())
-    secs = sections(image)
-
-    print("pages the pmap has locked down:")
-    locked = stop_refusing(image, secs, strings_saying(bytes(image), secs, b"locked down"),
-                           "may be mapped")
-    print("what a table forbids underneath it:")
-    below = stop_forbidding_execution_below(image, secs)
-    print("executable mappings in the kernel's own pmap:")
-    executable = stop_refusing(image, secs,
-                               strings_saying(bytes(image), secs, b"executable mapping"),
-                               "may be made")
-
-    if not (locked and below and executable):
-        sys.exit("kernel does not look like one this tool knows")
-
-    open(destination, "wb").write(bytes(image))
-    print(f"\n{locked + below + executable} changes -> {destination}")
-
-
-def stop_refusing(image, secs, saying, what):
-    undone = 0
-    for segment, name, addr, size, foff in secs:
-        if name != "__text":
-            continue
-        code = bytes(image[foff:foff + size])
-        blocks = {addr + b
-                  for b in (start_of_block(code, s) for s in complaints_at(code, addr, saying))
-                  if b is not None}
-        if not blocks:
-            continue
-        for where, at, word in branches_into(code, addr, blocks):
-            struct.pack_into("<I", image, foff + at, NOP)
-            print(f"  {segment} {where:#x}  {word:#010x} -> nop   ({what})")
-            undone += 1
-    return undone
-
-
-def stop_forbidding_execution_below(image, secs):
-    undone = 0
-    for segment, name, addr, size, foff in secs:
-        if name != "__text":
-            continue
-        code = bytes(image[foff:foff + size])
-        for i in range(0, len(code) - 4, 4):
-            word = struct.unpack_from("<I", code, i)[0]
-            builds_high = (word & 0xFF800000) == 0xF2800000 and ((word >> 21) & 3) == 3
-            if not builds_high or ((word >> 5) & 0xFFFF) != FORBIDS_BELOW:
-                continue
-            into = word & 0x1F
-            struct.pack_into("<I", image, foff + i, 0xF2E00000 | (ALLOWS_BELOW << 5) | into)
-            print(f"  {segment} {addr + i:#x}  {word:#010x} -> "
-                  f"movk x{into}, #{ALLOWS_BELOW:#06x}, lsl 48"
-                  f"   (a table no longer forbids what is under it)")
-            undone += 1
-    return undone
-
-
-def strings_saying(image, secs, wanted):
-    where = set()
-    at = image.find(wanted)
-    while at != -1:
-        start = image.rfind(b"\0", 0, at) + 1
-        for _, name, addr, size, foff in secs:
-            if name == "__cstring" and foff <= start < foff + size:
-                where.add(addr + (start - foff))
-        at = image.find(wanted, at + 1)
-    return where
-
-
-def complaints_at(code, base, about):
-    said = []
-    for i in range(0, len(code) - 4, 4):
-        word = struct.unpack_from("<I", code, i)[0]
-        if (word & 0x9F000000) != 0x90000000:
-            continue
-        into = word & 0x1F
-        page = (((word >> 5) & 0x7FFFF) << 2) | ((word >> 29) & 3)
-        if page & (1 << 20):
-            page -= 1 << 21
-        page = ((base + i) & ~0xFFF) + (page << 12)
-        for j in range(i + 4, min(i + 48, len(code) - 4), 4):
-            after = struct.unpack_from("<I", code, j)[0]
-            if (after & 0xFF800000) == 0x91000000 and ((after >> 5) & 0x1F) == into:
-                if page + ((after >> 10) & 0xFFF) in about:
-                    said.append(i)
-                break
-    return said
-
-
-def start_of_block(code, at):
-    i = at
-    while i >= 4:
-        word = struct.unpack_from("<I", code, i - 4)[0]
-        if (word & 0xFC000000) in (0x94000000, 0x14000000):
-            return i
-        if (word & 0xFFFFFC1F) == 0xD65F0000 or word == 0xD65F0FFF:
-            return i
-        i -= 4
-    return None
-
-
-def branches_into(code, base, blocks):
-    found = []
-    for i in range(0, len(code) - 4, 4):
-        word = struct.unpack_from("<I", code, i)[0]
-        if (word & 0xFF000010) == 0x54000000 or (word & 0x7E000000) == 0x34000000:
-            far, sign = (word >> 5) & 0x7FFFF, 1 << 18
-        elif (word & 0x7E000000) == 0x36000000:
-            far, sign = (word >> 5) & 0x3FFF, 1 << 13
-        else:
-            continue
-        if far & sign:
-            far -= sign << 1
-        if base + i + far * 4 in blocks:
-            found.append((base + i, i, word))
-    return found
-
-
-def sections(image):
-    count = struct.unpack_from("<I", image, 16)[0]
-    at, found = 32, []
-    for _ in range(count):
-        kind, size = struct.unpack_from("<II", image, at)
-        if kind == 0x19:
-            how_many = struct.unpack_from("<I", image, at + 64)[0]
-            so = at + 72
-            for _ in range(how_many):
-                found.append((
-                    image[so + 16:so + 32].rstrip(b"\0").decode(),
-                    image[so:so + 16].rstrip(b"\0").decode(),
-                    *struct.unpack_from("<QQ", image, so + 32),
-                    struct.unpack_from("<I", image, so + 48)[0],
-                ))
-                so += 80
-        at += size
-    return found
-
-
-if len(sys.argv) != 3:
-    sys.exit(f"usage: {sys.argv[0]} <kernel> <patched-kernel>")
-
-main(sys.argv[1], sys.argv[2])

src/barebone/agent/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "frida-barebone-agent",
+  "version": "1.0.0",
+  "description": "xPack configuration for frida-barebone-agent",
+  "xpack": {
+    "minimumXpmRequired": "0.20.8",
+    "dependencies": {},
+    "devDependencies": {
+      "@xpack-dev-tools/aarch64-none-elf-gcc": {
+        "specifier": "14.2.1-1.1.1",
+        "local": "link",
+        "platforms": "all"
+      }
+    },
+    "properties": {},
+    "actions": {},
+    "buildConfigurations": {}
+  }
+}

src/barebone/agent/src/ffi.rs

@@ -1,7 +1,7 @@
 use core::ffi::c_void;
 
-use crate::bindings::{gpointer, gsize, gum_try_mprotect, GumPageProtection};
-use crate::{kernel, libc};
+use crate::bindings::{gpointer, gsize, GumPageProtection};
+use crate::{gum, libc, xnu};
 
 const GUM_PAGE_READ: GumPageProtection = 1;
 const GUM_PAGE_EXECUTE: GumPageProtection = 4;
@@ -10,7 +10,7 @@ const GUM_PAGE_EXECUTE: GumPageProtection = 4;
 // static trampoline `text` made executable, followed by a writable parameter
 // table `map_size` bytes later (the trampolines reach their parameters via that
 // fixed offset). The two halves are whole pages, so flipping the first to RX
-// leaves the parameter table writable.
+// over the hostlink leaves the parameter table writable.
 #[unsafe(no_mangle)]
 pub unsafe extern "C" fn ffi_tramp_embedder_map(
     text: *const c_void,
@@ -19,7 +19,7 @@ pub unsafe extern "C" fn ffi_tramp_embedder_map(
     parm_table: *mut *mut c_void,
 ) -> i32 {
     unsafe {
-        let base = kernel::alloc_code(map_size * 2);
+        let base = xnu::kalloc(map_size * 2);
         if base.is_null() {
             return 0;
         }
@@ -28,9 +28,9 @@ pub unsafe extern "C" fn ffi_tramp_embedder_map(
         libc::__clear_cache(base, base.add(map_size));
 
         let made_executable =
-            gum_try_mprotect(base as gpointer, map_size as gsize, GUM_PAGE_READ | GUM_PAGE_EXECUTE);
+            gum::gum_try_mprotect(base as gpointer, map_size as gsize, GUM_PAGE_READ | GUM_PAGE_EXECUTE);
         if made_executable == 0 {
-            kernel::free_code(base, map_size * 2);
+            xnu::free(base, map_size * 2);
             return 0;
         }
 
@@ -46,5 +46,7 @@ pub unsafe extern "C" fn ffi_tramp_embedder_unmap(
     _parm_table: *mut c_void,
     map_size: usize,
 ) {
-    kernel::free_code(code_table as *mut u8, map_size * 2);
+    unsafe {
+        xnu::free(code_table as *mut u8, map_size * 2);
+    }
 }

src/barebone/agent/src/glib.rs

@@ -1,69 +1,46 @@
 use core::ptr;
-use core::sync::atomic::{AtomicUsize, Ordering};
 
 use crate::bindings::{g_wait_is_set, gint64, gpointer};
-use crate::kernel;
+use crate::xnu;
 
 const G_WAIT_INFINITE: gint64 = -1;
 
 pub static mut WAKEUP_TOKEN: u64 = 0;
 
-pub fn wakeup_token() -> *const u8 {
-    ptr::addr_of!(WAKEUP_TOKEN) as *const u8
-}
-
 #[unsafe(no_mangle)]
 pub extern "C" fn g_get_monotonic_time() -> gint64 {
-    kernel::monotonic_micros()
+    let abstime = xnu::mach_absolute_time();
+    let time = xnu::absolutetime_to_nanoseconds(abstime);
+    (time / 1000) as gint64
 }
 
 #[unsafe(no_mangle)]
 pub extern "C" fn g_wait_sleep(token: gpointer, timeout_us: gint64) {
-    let timeout = if timeout_us == G_WAIT_INFINITE {
-        None
+    let wait_event = ptr::addr_of_mut!(WAKEUP_TOKEN) as *const u8;
+
+    let wait_result = if timeout_us == G_WAIT_INFINITE {
+        xnu::assert_wait(wait_event, xnu::THREAD_INTERRUPTIBLE)
     } else {
-        Some(timeout_us as u64)
+        xnu::assert_wait_timeout(
+            wait_event,
+            xnu::THREAD_INTERRUPTIBLE,
+            (timeout_us * 1000) as u32,
+            1, // TODO
+        )
     };
-
-    let ours = is_loop_thread();
-    let event = if ours {
-        LOOP_TOKEN.store(token as usize, Ordering::Release);
-        ptr::addr_of_mut!(WAKEUP_TOKEN) as *const u8
-    } else {
-        token as *const u8
-    };
-
-    kernel::wait(event, timeout, &mut || unsafe { g_wait_is_set(token) != 0 });
-
-    if ours {
-        LOOP_TOKEN.store(0, Ordering::Release);
+    if wait_result != xnu::THREAD_WAITING {
+        panic!("assert_wait_timeout failed: {}", wait_result);
     }
+
+    if unsafe { g_wait_is_set(token) != 0 } {
+        xnu::thread_wakeup(wait_event);
+        return;
+    }
+
+    xnu::thread_block(None);
 }
 
 #[unsafe(no_mangle)]
-pub extern "C" fn g_wait_wake(token: gpointer) {
-    kernel::poke_loop_wakeup();
-    kernel::wake(ptr::addr_of_mut!(WAKEUP_TOKEN) as *const u8);
-    kernel::wake(token as *const u8);
-}
-
-pub fn is_loop_thread() -> bool {
-    kernel::current_thread_id() == LOOP_THREAD.load(Ordering::Acquire) as u64
-}
-
-pub fn own_the_loop() {
-    LOOP_THREAD.store(kernel::current_thread_id() as usize, Ordering::Release);
-}
-
-static LOOP_THREAD: AtomicUsize = AtomicUsize::new(0);
-static LOOP_TOKEN: AtomicUsize = AtomicUsize::new(0);
-
-#[unsafe(no_mangle)]
-pub extern "C" fn g_io_channel_unix_new(_fd: i32) -> gpointer {
-    ptr::null_mut()
-}
-
-#[unsafe(no_mangle)]
-pub extern "C" fn g_spawn_async_with_pipes() -> i32 {
-    0
+pub extern "C" fn g_wait_wake(_token: gpointer) {
+    xnu::thread_wakeup(ptr::addr_of_mut!(WAKEUP_TOKEN) as *const u8);
 }

src/barebone/agent/src/gthread.rs

@@ -8,39 +8,34 @@ use crate::bindings::GThreadFunc;
 use crate::bindings::{gpointer, gulong};
 use alloc::boxed::Box;
 use alloc::collections::BTreeMap;
+use core::arch::asm;
 use core::ffi::c_void;
-use core::sync::atomic::{AtomicU32, AtomicU64, AtomicUsize, Ordering};
+use core::sync::atomic::{AtomicU32, AtomicU64, Ordering};
 
 // Our implementation structures that overlay the opaque GLib structures
 
-#[cfg_attr(target_pointer_width = "32", repr(C, align(4)))]
-#[cfg_attr(target_pointer_width = "64", repr(C, align(8)))]
+#[repr(C, align(8))]
 struct MutexImpl {
     lock: AtomicU32,
     _padding: [u8; core::mem::size_of::<GMutex>() - core::mem::size_of::<AtomicU32>()],
 }
 
-#[cfg_attr(target_pointer_width = "32", repr(C, align(4)))]
-#[cfg_attr(target_pointer_width = "64", repr(C, align(8)))]
+#[repr(C, align(8))]
 struct RecMutexImpl {
-    owner: AtomicUsize,   // Thread ID of the owner (uses the 'p' field)
+    owner: AtomicU64,     // Thread ID of the owner (uses the 'p' field)
     count: AtomicU32,     // Recursion count (uses i[0])
     _unused: u32,         // Unused (uses i[1])
 }
 
-#[cfg_attr(target_pointer_width = "32", repr(C, align(4)))]
-#[cfg_attr(target_pointer_width = "64", repr(C, align(8)))]
+#[repr(C, align(8))]
 struct RWLockImpl {
     state: AtomicU32,     // Lock state (readers count + writer bit)
     _padding: [u8; core::mem::size_of::<GRWLock>() - core::mem::size_of::<AtomicU32>()],
 }
 
-// A generation counter rather than a flag: a flag stays set once signalled, so every
-// later wait returns at once and the caller's loop spins instead of blocking.
-#[cfg_attr(target_pointer_width = "32", repr(C, align(4)))]
-#[cfg_attr(target_pointer_width = "64", repr(C, align(8)))]
+#[repr(C, align(8))]
 struct CondImpl {
-    generation: AtomicU32,
+    signal: AtomicU32,    // Signal state
     _padding: [u8; core::mem::size_of::<GCond>() - core::mem::size_of::<AtomicU32>()],
 }
 
@@ -149,9 +144,10 @@ pub extern "C" fn g_rec_mutex_clear(_rec_mutex: *mut GRecMutex) {
 pub extern "C" fn g_rec_mutex_lock(rec_mutex: *mut GRecMutex) {
     unsafe {
         let impl_ = rec_mutex_impl(rec_mutex);
+        let current_thread = get_current_thread_id();
 
         loop {
-            if rec_mutex_try_acquire(impl_) {
+            if rec_mutex_try_acquire(impl_, current_thread) {
                 break;
             }
             rec_mutex_wait(impl_);
@@ -163,8 +159,9 @@ pub extern "C" fn g_rec_mutex_lock(rec_mutex: *mut GRecMutex) {
 pub extern "C" fn g_rec_mutex_trylock(rec_mutex: *mut GRecMutex) -> u32 {
     unsafe {
         let impl_ = rec_mutex_impl(rec_mutex);
+        let current_thread = get_current_thread_id();
 
-        if rec_mutex_try_acquire(impl_) {
+        if rec_mutex_try_acquire(impl_, current_thread) {
             1
         } else {
             0
@@ -186,7 +183,7 @@ pub extern "C" fn g_rec_mutex_unlock(rec_mutex: *mut GRecMutex) {
                     .is_ok()
                 {
                     impl_.owner.store(0, Ordering::Relaxed);
-                    wake_waiters(&impl_.count);
+                    lock_notify_all();
                     break;
                 }
             } else {
@@ -201,10 +198,7 @@ pub extern "C" fn g_rec_mutex_unlock(rec_mutex: *mut GRecMutex) {
     }
 }
 
-// Asking the kernel who we are costs more than the uncontended acquisition itself, and
-// every allocation takes this path, so the identity is only fetched once the lock turns
-// out to be held.
-unsafe fn rec_mutex_try_acquire(impl_: &mut RecMutexImpl) -> bool {
+unsafe fn rec_mutex_try_acquire(impl_: &mut RecMutexImpl, current_thread: u64) -> bool {
     let current_count = impl_.count.load(Ordering::Relaxed);
 
     if current_count == 0 {
@@ -212,12 +206,12 @@ unsafe fn rec_mutex_try_acquire(impl_: &mut RecMutexImpl) -> bool {
             .compare_exchange_weak(0, 1, Ordering::Acquire, Ordering::Relaxed)
             .is_ok()
         {
-            impl_.owner.store(crate::kernel::current_thread_id() as usize, Ordering::Relaxed);
+            impl_.owner.store(current_thread, Ordering::Relaxed);
             return true;
         }
     } else {
         let current_owner = impl_.owner.load(Ordering::Relaxed);
-        if current_owner == crate::kernel::current_thread_id() as usize {
+        if current_owner == current_thread {
             if impl_.count
                 .compare_exchange_weak(
                     current_count,
@@ -236,7 +230,7 @@ unsafe fn rec_mutex_try_acquire(impl_: &mut RecMutexImpl) -> bool {
 
 unsafe fn rec_mutex_wait(impl_: &mut RecMutexImpl) {
     while impl_.count.load(Ordering::Relaxed) != 0 {
-        wait_on(&impl_.count, &mut || impl_.count.load(Ordering::Relaxed) == 0);
+        unsafe { lock_wait_primitive() };
     }
 }
 
@@ -288,7 +282,7 @@ pub extern "C" fn g_rw_lock_writer_unlock(rw_lock: *mut GRWLock) {
     unsafe {
         let impl_ = rw_lock_impl(rw_lock);
         impl_.state.store(0, Ordering::Release);
-        wake_waiters(&impl_.state);
+        lock_notify_all();
     }
 }
 
@@ -335,7 +329,7 @@ pub extern "C" fn g_rw_lock_reader_unlock(rw_lock: *mut GRWLock) {
                 .is_ok()
             {
                 if current - 1 == 0 {
-                    wake_waiters(&impl_.state);
+                    lock_notify_all();
                 }
                 break;
             }
@@ -361,15 +355,13 @@ unsafe fn rw_lock_reader_try_acquire(impl_: &mut RWLockImpl) -> bool {
 
 unsafe fn rw_lock_wait_for_writers(impl_: &mut RWLockImpl) {
     while impl_.state.load(Ordering::Relaxed) & RW_WRITER_LOCK_BIT != 0 {
-        wait_on(&impl_.state, &mut || {
-            impl_.state.load(Ordering::Relaxed) & RW_WRITER_LOCK_BIT == 0
-        });
+        unsafe { lock_wait_primitive() };
     }
 }
 
 unsafe fn rw_lock_wait_for_all(impl_: &mut RWLockImpl) {
     while impl_.state.load(Ordering::Relaxed) != 0 {
-        wait_on(&impl_.state, &mut || impl_.state.load(Ordering::Relaxed) == 0);
+        unsafe { lock_wait_primitive() };
     }
 }
 
@@ -377,7 +369,7 @@ unsafe fn rw_lock_wait_for_all(impl_: &mut RWLockImpl) {
 pub extern "C" fn g_cond_init(cond: *mut GCond) {
     unsafe {
         let impl_ = cond_impl(cond);
-        impl_.generation.store(0, Ordering::Relaxed);
+        impl_.signal.store(0, Ordering::Relaxed);
     }
 }
 
@@ -387,17 +379,11 @@ pub extern "C" fn g_cond_clear(_cond: *mut GCond) {}
 #[unsafe(no_mangle)]
 pub extern "C" fn g_cond_wait(cond: *mut GCond, mutex: *mut GMutex) {
     unsafe {
-        // Read the generation under the mutex, so a signal that lands after the
-        // unlock below is still observed as a change.
-        let seen = cond_impl(cond).generation.load(Ordering::Acquire);
-
         g_mutex_unlock(mutex);
 
         let impl_ = cond_impl(cond);
-        while impl_.generation.load(Ordering::Acquire) == seen {
-            wait_on(&impl_.generation, &mut || {
-                impl_.generation.load(Ordering::Acquire) != seen
-            });
+        while impl_.signal.load(Ordering::Acquire) == 0 {
+            lock_wait_primitive();
         }
 
         g_mutex_lock(mutex);
@@ -408,8 +394,8 @@ pub extern "C" fn g_cond_wait(cond: *mut GCond, mutex: *mut GMutex) {
 pub extern "C" fn g_cond_signal(cond: *mut GCond) {
     unsafe {
         let impl_ = cond_impl(cond);
-        impl_.generation.fetch_add(1, Ordering::Release);
-        wake_waiters(&impl_.generation);
+        impl_.signal.store(1, Ordering::Release);
+        lock_notify_all();
     }
 }
 
@@ -417,82 +403,22 @@ pub extern "C" fn g_cond_signal(cond: *mut GCond) {
 pub extern "C" fn g_cond_broadcast(cond: *mut GCond) {
     unsafe {
         let impl_ = cond_impl(cond);
-        impl_.generation.fetch_add(1, Ordering::Release);
-        wake_waiters(&impl_.generation);
+        impl_.signal.store(1, Ordering::Release);
+        lock_notify_all();
     }
 }
 
 #[unsafe(no_mangle)]
-pub extern "C" fn g_cond_wait_until(cond: *mut GCond, mutex: *mut GMutex, end_time: i64) -> u32 {
-    unsafe {
-        let seen = cond_impl(cond).generation.load(Ordering::Acquire);
-
-        g_mutex_unlock(mutex);
-
-        let impl_ = cond_impl(cond);
-        let mut signalled = impl_.generation.load(Ordering::Acquire) != seen;
-        while !signalled && crate::kernel::monotonic_micros() < end_time {
-            wait_on(&impl_.generation, &mut || {
-                impl_.generation.load(Ordering::Acquire) != seen
-            });
-            signalled = impl_.generation.load(Ordering::Acquire) != seen;
-        }
-
-        g_mutex_lock(mutex);
-
-        if signalled { 1 } else { 0 }
-    }
+pub extern "C" fn g_cond_wait_until(cond: *mut GCond, mutex: *mut GMutex, _end_time: i64) -> u32 {
+    // TODO: Implement proper timeout handling
+    g_cond_wait(cond, mutex);
+    1
 }
 
-// A half that runs on a system with slots of its own says so, and every GPrivate takes one. The
-// map below is what the kernel halves use, and it costs a lock and a lookup per call, which is
-// what code the Stalker writes does on every block it leaves.
-pub struct ThreadSlots {
-    pub take: fn() -> u32,
-    pub get: fn(u32) -> *mut c_void,
-    pub set: fn(u32, *mut c_void),
-}
-
-#[cfg(any(feature = "win9x", feature = "winnt", feature = "xnu-core"))]
-pub fn use_thread_slots(slots: &'static ThreadSlots) {
-    unsafe { SLOTS = Some(slots) };
-}
-
-fn slot_of(key: *mut GPrivate, slots: &ThreadSlots) -> u32 {
-    let taken = unsafe { (*key).p } as usize;
-    if taken != 0 {
-        return (taken - 1) as u32;
-    }
-
-    unsafe {
-        lock_acquire(&TLS_LOCK);
-
-        let mut taken = (*key).p as usize;
-        if taken == 0 {
-            taken = ((slots.take)() + 1) as usize;
-            (*key).p = taken as *mut c_void;
-        }
-
-        lock_release(&TLS_LOCK);
-
-        (taken - 1) as u32
-    }
-}
-
-fn slots() -> Option<&'static ThreadSlots> {
-    unsafe { SLOTS }
-}
-
-static mut SLOTS: Option<&'static ThreadSlots> = None;
-
 #[unsafe(no_mangle)]
 pub extern "C" fn g_private_get(key: *mut GPrivate) -> *mut c_void {
-    if let Some(slots) = slots() {
-        return (slots.get)(slot_of(key, slots));
-    }
-
     unsafe {
-        let thread_id = crate::kernel::current_thread_id();
+        let thread_id = get_current_thread_id();
         lock_acquire(&TLS_LOCK);
 
         ensure_tls_storage();
@@ -511,13 +437,8 @@ pub extern "C" fn g_private_get(key: *mut GPrivate) -> *mut c_void {
 
 #[unsafe(no_mangle)]
 pub extern "C" fn g_private_set(key: *mut GPrivate, value: *mut c_void) {
-    if let Some(slots) = slots() {
-        (slots.set)(slot_of(key, slots), value);
-        return;
-    }
-
     unsafe {
-        let thread_id = crate::kernel::current_thread_id();
+        let thread_id = get_current_thread_id();
         lock_acquire(&TLS_LOCK);
 
         ensure_tls_storage();
@@ -547,9 +468,7 @@ pub extern "C" fn _g_system_thread_create(
     data: gpointer,
 ) -> *mut GSystemThread {
     unsafe {
-        crate::kernel::log("frida: glib is creating a thread\n\0");
-
-        let system_thread = crate::kernel::alloc(core::mem::size_of::<SystemThreadImpl>()) as *mut SystemThreadImpl;
+        let system_thread = crate::xnu::kalloc(core::mem::size_of::<SystemThreadImpl>()) as *mut SystemThreadImpl;
 
         g_mutex_init(&mut (*system_thread).mutex);
         g_cond_init(&mut (*system_thread).cond);
@@ -559,12 +478,12 @@ pub extern "C" fn _g_system_thread_create(
         (*system_thread).finished.store(0, Ordering::Relaxed);
         (*system_thread).detached.store(0, Ordering::Relaxed);
 
-        let wrapper_data = crate::kernel::alloc(core::mem::size_of::<ThreadWrapperData>()) as *mut ThreadWrapperData;
+        let wrapper_data = crate::xnu::kalloc(core::mem::size_of::<ThreadWrapperData>()) as *mut ThreadWrapperData;
         (*wrapper_data).func = func;
         (*wrapper_data).data = data;
         (*wrapper_data).system_thread = system_thread;
 
-        let _xnu_result = crate::kernel::spawn_thread(thread_wrapper, wrapper_data as *mut c_void);
+        let _xnu_result = crate::xnu::kernel_thread_start(thread_wrapper, wrapper_data as *mut c_void);
 
         system_thread as *mut GSystemThread
     }
@@ -577,9 +496,8 @@ extern "C" fn thread_wrapper(parameter: *mut c_void, _wait_result: i32) {
         let data = (*wrapper_data).data;
         let system_thread = (*wrapper_data).system_thread;
 
-        let current_thread_id = crate::kernel::current_thread_id();
-        (*system_thread).thread_id.store(current_thread_id, Ordering::Release);
-        wake_waiters(&(*system_thread).thread_id);
+        let current_thread_id = get_current_thread_id();
+        (*system_thread).thread_id.store(current_thread_id, Ordering::Relaxed);
 
         func.unwrap()(data);
 
@@ -619,10 +537,12 @@ pub extern "C" fn _g_system_thread_wait(thread: *mut GSystemThread) {
     unsafe {
         let system_thread = thread as *mut SystemThreadImpl;
 
-        while (*system_thread).thread_id.load(Ordering::Acquire) == 0 {
-            wait_on(&(*system_thread).thread_id, &mut || {
-                (*system_thread).thread_id.load(Ordering::Acquire) != 0
-            });
+        loop {
+            let thread_id = (*system_thread).thread_id.load(Ordering::Acquire);
+            if thread_id != 0 {
+                break;
+            }
+            core::hint::spin_loop();
         }
 
         g_mutex_lock(&mut (*system_thread).mutex);
@@ -636,16 +556,19 @@ pub extern "C" fn _g_system_thread_wait(thread: *mut GSystemThread) {
 }
 
 unsafe fn cleanup_system_thread(system_thread: *mut SystemThreadImpl) {
-    crate::kernel::free(system_thread as *mut u8, core::mem::size_of::<SystemThreadImpl>());
+    crate::xnu::free(system_thread as *mut u8, core::mem::size_of::<SystemThreadImpl>());
 }
 
 unsafe fn cleanup_wrapper_data(wrapper_data: *mut ThreadWrapperData) {
-    crate::kernel::free(wrapper_data as *mut u8, core::mem::size_of::<ThreadWrapperData>());
+    crate::xnu::free(wrapper_data as *mut u8, core::mem::size_of::<ThreadWrapperData>());
 }
 
 unsafe fn lock_acquire(lock: &AtomicU32) {
-    while !unsafe { lock_try_acquire(lock) } {
-        wait_on(lock, &mut || lock.load(Ordering::Relaxed) == 0);
+    loop {
+        if unsafe { lock_try_acquire(lock) } {
+            break;
+        }
+        unsafe { lock_wait(lock) };
     }
 }
 
@@ -656,36 +579,35 @@ unsafe fn lock_try_acquire(lock: &AtomicU32) -> bool {
 
 unsafe fn lock_release(lock: &AtomicU32) {
     lock.store(0, Ordering::Release);
-    wake_waiters(lock);
+    unsafe { lock_notify_all() };
 }
 
-// Sleeps until `ready` holds or the slice expires, whichever comes first.
-//
-// These used to spin on wfe/sev. A kernel thread that spins never reaches the
-// scheduler, so a lost wakeup — or a genuine deadlock, which is how we found this —
-// starves the CPU it is on until the hardware watchdog takes the machine down. The
-// bounded sleep turns both into a stall that can be observed instead.
-//
-// The address of the word being waited on names the wait channel: XNU pairs
-// assert_wait()/thread_wakeup() on it directly, while the Linux shim has a single
-// channel and treats it as a hint. Every caller re-checks its own condition in a
-// loop, so a spurious wakeup costs nothing either way.
-fn wait_on<T>(word: &T, ready: &mut dyn FnMut() -> bool) {
-    crate::kernel::wait(token_of(word), Some(WAIT_SLICE_US), ready);
-
-    // The wait above returns without sleeping whenever `ready` already holds, so on
-    // its own it is not enough to keep a contended loop off the CPU: every caller
-    // here loops, and a loop in a kernel thread that never reaches the scheduler
-    // takes the machine down rather than merely running hot. Yield unconditionally.
-    crate::kernel::yield_now();
+unsafe fn lock_wait(lock: &AtomicU32) {
+    while lock.load(Ordering::Relaxed) != 0 {
+        unsafe { lock_wait_primitive() };
+    }
 }
 
-fn wake_waiters<T>(word: &T) {
-    crate::kernel::wake(token_of(word));
+unsafe fn lock_wait_primitive() {
+    unsafe {
+        asm!("wfe", options(nomem, nostack));
+    }
 }
 
-fn token_of<T>(word: &T) -> *const u8 {
-    word as *const T as *const u8
+unsafe fn lock_notify_all() {
+    unsafe {
+        asm!("sev", options(nomem, nostack));
+    }
 }
 
-const WAIT_SLICE_US: u64 = 1000;
+// The thread pointer is exposed to JavaScript as a GumThreadId, so it must fit
+// in a double without losing precision; the low bits keep it unique per thread.
+const JS_SAFE_THREAD_ID_MASK: u64 = (1 << 48) - 1;
+
+pub unsafe fn get_current_thread_id() -> u64 {
+    let thread_ptr: u64;
+    unsafe {
+        asm!("mrs {}, tpidr_el1", out(reg) thread_ptr, options(nomem, nostack));
+    }
+    thread_ptr & JS_SAFE_THREAD_ID_MASK
+}

src/barebone/agent/src/gum.rs

@@ -1,81 +1,296 @@
-// Gum's platform backend, without the parts that depend on the kernel. Memory protection,
-// symbols and the module registry are in gum_injected.rs, gum_linux.rs and gum_windows.rs.
-
 use crate::{
     bindings::{
-        _GInterfaceInfo, _GTypeInfo, GObject, GObjectClass, GPrivate, GType, GumAddress,
-        GumExportDetails,
-        GumExportType_GUM_EXPORT_FUNCTION, GumFoundExportFunc, GumMemoryRange, GumModule,
-        GumModuleInterface, GumThreadId, GumTlsKey, g_free, g_object_get_type, g_object_new,
-        g_once_init_enter, g_once_init_leave, g_strdup, g_type_add_interface_static,
-        g_type_class_peek_parent, g_type_register_static, gchar, gpointer, gsize, guint,
+        _GInterfaceInfo, _GTypeInfo, _GumPageProtection_GUM_PAGE_EXECUTE,
+        _GumPageProtection_GUM_PAGE_READ, _GumPageProtection_GUM_PAGE_WRITE,
+        _GumRwxSupport_GUM_RWX_NONE, GArray, GObject, GObjectClass, GPrivate, GType,
+        GumDebugSymbolDetails, GumExportDetails, GumExportType_GUM_EXPORT_FUNCTION,
+        GumFoundExportFunc, GumMemoryRange, GumModule, GumModuleInterface, GumModuleRegistry,
+        GumPageProtection, GumRwxSupport, GumThreadId, GumTlsKey, g_array_append_vals, g_array_new,
+        g_free, g_object_get_type, g_object_new, g_object_unref, g_once_init_enter,
+        g_once_init_leave, g_strdup, g_type_add_interface_static, g_type_class_peek_parent,
+        g_type_register_static, g_variant_get_boolean, g_variant_get_uint64, g_variant_new,
+        g_variant_new_fixed_array, g_variant_type_free, g_variant_type_new, gboolean, gchar,
+        gconstpointer, gpointer, gsize, guint,
+        gum_barebone_register_module,
+        gum_barebone_try_remap_writable_pages as _gum_barebone_try_remap_writable_pages,
+        g_variant_unref, gum_module_get_type, gum_mprotect, gum_query_page_size,
     },
-    gthread, kernel, libc,
+    gthread, host_rpc, libc, FridaCommand,
 };
 use alloc::boxed::Box;
 use alloc::ffi::CString;
-use core::ffi::CStr;
+use alloc::format;
 use alloc::vec::Vec;
+use core::ffi::CStr;
+use core::mem::size_of;
 use core::ptr;
 use core::sync::atomic::{AtomicU32, Ordering};
 
-#[cfg(feature = "linux")]
-use crate::gum_linux::enumerate_exports_in_range;
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-use crate::bindings::{
-    GumFoundSymbolFunc, GumSymbolDetails, GumSymbolType_GUM_SYMBOL_FUNCTION,
-    GumSymbolType_GUM_SYMBOL_OBJECT, GumSymbolType_GUM_SYMBOL_UNKNOWN, gboolean, gssize,
-};
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-use crate::gum_modules::enumerate_symbols_in_range;
-#[cfg(any(feature = "win9x", feature = "winnt"))]
-use crate::gum_windows::{enumerate_exports_in_range, enumerate_imports_in_module};
-#[cfg(any(feature = "win9x", feature = "winnt"))]
-use crate::bindings::{GumFoundImportFunc, GumImportDetails, GumImportType_GUM_IMPORT_FUNCTION};
-#[cfg(any(feature = "xnu-core", feature = "linux-injected"))]
-use crate::gum_injected::enumerate_exports_in_range;
+// Code slabs the agent allocates are normal writable RAM, so gum can keep a real writable alias to
+// them across the slab's lifetime. Pre-existing kernel/kext text is CTRR-locked and can only be
+// modified through the host's physical-memory bridge, so we shadow it and commit on dispose. We
+// distinguish the two by tracking the executable ranges we hand out.
+static SLAB_LOCK: AtomicU32 = AtomicU32::new(0);
+static mut SLABS: Vec<(u64, u64)> = Vec::new();
+
+const SHADOW_MAGIC: u64 = 0x4644_4f48_5341_4853;
+const SHADOW_HEADER: usize = 24;
+const SHADOW_MIN_ADDRESS: u64 = 0xffff_f000_0000_0000;
+
+fn slab_lock() {
+    while SLAB_LOCK
+        .compare_exchange(0, 1, Ordering::Acquire, Ordering::Relaxed)
+        .is_err()
+    {
+        core::hint::spin_loop();
+    }
+}
+
+fn slab_unlock() {
+    SLAB_LOCK.store(0, Ordering::Release);
+}
+
+fn register_slab(start: u64, size: usize) {
+    slab_lock();
+    unsafe {
+        (*core::ptr::addr_of_mut!(SLABS)).push((start, start + size as u64));
+    }
+    slab_unlock();
+}
+
+fn unregister_slab(start: u64) {
+    slab_lock();
+    unsafe {
+        (*core::ptr::addr_of_mut!(SLABS)).retain(|&(begin, _)| begin != start);
+    }
+    slab_unlock();
+}
+
+fn is_agent_slab(address: u64) -> bool {
+    slab_lock();
+    let found = unsafe {
+        (*core::ptr::addr_of!(SLABS))
+            .iter()
+            .any(|&(begin, end)| address >= begin && address < end)
+    };
+    slab_unlock();
+    found
+}
 
 #[unsafe(no_mangle)]
 pub extern "C" fn gum_process_get_current_thread_id() -> GumThreadId {
-    kernel::current_thread_id() as GumThreadId
-}
-
-#[cfg(any(feature = "win9x", feature = "winnt", feature = "xnu-core"))]
-#[unsafe(no_mangle)]
-pub extern "C" fn gum_process_get_id() -> guint {
-    kernel::current_process_id() as guint
-}
-
-#[cfg(feature = "linux-injected")]
-#[unsafe(no_mangle)]
-pub extern "C" fn gum_process_get_id() -> guint {
-    crate::source_process_id() as guint
+    unsafe { gthread::get_current_thread_id() }
 }
 
 #[unsafe(no_mangle)]
 pub extern "C" fn gum_barebone_query_page_size() -> guint {
-    kernel::page_size() as guint
-}
-
-// Only the kernel is allowed to ask the translation control register what it was set up with,
-// so a half that runs in a process is told instead.
-#[cfg(target_arch = "aarch64")]
-pub(crate) fn page_size_the_kernel_runs_with() -> usize {
-    let translation_control: u64;
     unsafe {
-        core::arch::asm!("mrs {}, tcr_el1", out(reg) translation_control, options(nomem, nostack));
-    }
+        let tcr_el1: u64;
+        core::arch::asm!("mrs {}, tcr_el1", out(reg) tcr_el1, options(nomem, nostack));
 
-    match (translation_control >> 14) & 0x3 {
-        0b01 => 65536,
-        0b10 => 16384,
-        _ => 4096,
+        let tg0 = (tcr_el1 >> 14) & 0x3;
+
+        match tg0 {
+            0b00 => 4096,
+            0b01 => 65536,
+            0b10 => 16384,
+            _ => 4096,
+        }
     }
 }
 
-#[cfg(any(target_arch = "x86", target_arch = "x86_64", target_arch = "arm"))]
-pub(crate) fn page_size_the_kernel_runs_with() -> usize {
-    4096
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_query_rwx_support() -> GumRwxSupport {
+    _GumRwxSupport_GUM_RWX_NONE
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_memory_can_remap_writable() -> gboolean {
+    1
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_memory_try_remap_writable_pages(
+    first_page: gpointer,
+    n_pages: guint,
+) -> gpointer {
+    if is_agent_slab(first_page as u64) {
+        return remap_agent_pages(first_page, n_pages);
+    }
+    shadow_kernel_pages(first_page, n_pages)
+}
+
+fn remap_agent_pages(first_page: gpointer, n_pages: guint) -> gpointer {
+    unsafe {
+        let page_size = gum_query_page_size() as usize;
+        let mut virtual_addrs = Vec::with_capacity(n_pages as usize);
+
+        let mut current_page = first_page as u64;
+        for _ in 0..n_pages {
+            virtual_addrs.push(current_page as gpointer);
+            current_page += page_size as u64;
+        }
+
+        _gum_barebone_try_remap_writable_pages(
+            virtual_addrs.as_ptr() as *mut *const core::ffi::c_void,
+            virtual_addrs.len() as guint,
+        )
+    }
+}
+
+fn shadow_kernel_pages(first_page: gpointer, n_pages: guint) -> gpointer {
+    unsafe {
+        let total = n_pages as usize * gum_query_page_size() as usize;
+        let buffer = crate::xnu::kalloc(SHADOW_HEADER + total);
+        *(buffer as *mut u64) = SHADOW_MAGIC;
+        *(buffer.add(8) as *mut u64) = first_page as u64;
+        *(buffer.add(16) as *mut u32) = n_pages;
+
+        let body = buffer.add(SHADOW_HEADER);
+        core::ptr::copy_nonoverlapping(first_page as *const u8, body, total);
+        body as gpointer
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_memory_dispose_writable_pages(writable: gpointer, _n_pages: guint) {
+    if (writable as u64) < SHADOW_MIN_ADDRESS {
+        return;
+    }
+    unsafe {
+        let buffer = (writable as *mut u8).sub(SHADOW_HEADER);
+        if *(buffer as *const u64) != SHADOW_MAGIC {
+            return;
+        }
+        let first_page = *(buffer.add(8) as *const u64);
+        let n_pages = *(buffer.add(16) as *const u32);
+        let total = n_pages as usize * gum_query_page_size() as usize;
+
+        commit_kernel_patch(first_page, writable as *const u8, total);
+        libc::__clear_cache(first_page as *const u8, (first_page + total as u64) as *const u8);
+
+        crate::xnu::free(buffer, SHADOW_HEADER + total);
+    }
+}
+
+unsafe fn commit_kernel_patch(address: u64, data: *const u8, len: usize) {
+    unsafe {
+        let element_type = g_variant_type_new(c"y".as_ptr());
+        let bytes = g_variant_new_fixed_array(element_type, data as gconstpointer, len as gsize, 1);
+        g_variant_type_free(element_type);
+
+        let payload = g_variant_new(c"(t@ay)".as_ptr(), address, bytes);
+        let reply = host_rpc(FridaCommand::PatchCode, payload);
+        g_variant_unref(reply);
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_barebone_try_remap_writable_pages(
+    addrs: *const gpointer,
+    n_addrs: guint,
+) -> gpointer {
+    if !crate::transport_is_up() {
+        return ptr::null_mut();
+    }
+    unsafe {
+        let element_type = g_variant_type_new(c"t".as_ptr());
+        let payload = g_variant_new_fixed_array(
+            element_type,
+            addrs as gconstpointer,
+            n_addrs as gsize,
+            size_of::<u64>() as gsize,
+        );
+        g_variant_type_free(element_type);
+
+        let reply = host_rpc(FridaCommand::RemapWritablePages, payload);
+        let virtual_address = g_variant_get_uint64(reply);
+        g_variant_unref(reply);
+
+        virtual_address as gpointer
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_try_mprotect(
+    address: gpointer,
+    size: gsize,
+    prot: GumPageProtection,
+) -> gboolean {
+    if !crate::transport_is_up() {
+        return 1;
+    }
+    unsafe {
+        let payload = g_variant_new(c"(ttu)".as_ptr(), address as u64, size as u64, prot as u32);
+
+        let reply = host_rpc(FridaCommand::MemoryProtect, payload);
+        let success = g_variant_get_boolean(reply);
+        g_variant_unref(reply);
+
+        if success != 0 {
+            flush_tlb_range(address as u64, size as u64);
+        }
+
+        success
+    }
+}
+
+// The host rewrites our page-table descriptors through the physical-memory
+// bridge, which leaves this CPU's TLB holding the stale translation. Stalker
+// flips a slab page RW then RX in place, so without this the freeze never takes
+// effect and executing the page faults with a permission abort.
+unsafe fn flush_tlb_range(address: u64, size: u64) {
+    unsafe {
+        let page_size = gum_query_page_size() as u64;
+        let start = address & !(page_size - 1);
+        let end = (address + size + page_size - 1) & !(page_size - 1);
+
+        core::arch::asm!("dsb ish", options(nostack, preserves_flags));
+        let mut va = start;
+        while va < end {
+            core::arch::asm!("tlbi vaae1is, {operand}", operand = in(reg) va >> 12,
+                options(nostack, preserves_flags));
+            va += page_size;
+        }
+        core::arch::asm!("dsb ish", "isb", options(nostack, preserves_flags));
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_memory_allocate(
+    _address: gpointer,
+    size: gsize,
+    _alignment: gsize,
+    prot: GumPageProtection,
+) -> gpointer {
+    let ptr = crate::xnu::kalloc(size as usize);
+    unsafe {
+        core::ptr::write_bytes(ptr, 0, size as usize);
+        if (prot & _GumPageProtection_GUM_PAGE_EXECUTE) != 0 {
+            register_slab(ptr as u64, size as usize);
+            gum_mprotect(ptr as gpointer, size, prot);
+        }
+    }
+    ptr as gpointer
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_memory_free(address: gpointer, size: gsize) -> gboolean {
+    // Executable slabs were flipped to RX in the page tables; restore RW before returning them to
+    // the allocator, otherwise the reclaimed pages stay non-writable and the next consumer faults.
+    if is_agent_slab(address as u64) {
+        unsafe {
+            gum_mprotect(
+                address,
+                size,
+                (_GumPageProtection_GUM_PAGE_READ | _GumPageProtection_GUM_PAGE_WRITE)
+                    as GumPageProtection,
+            );
+        }
+        unregister_slab(address as u64);
+    }
+    crate::xnu::free(address as *mut u8, size as usize);
+    1
 }
 
 #[unsafe(no_mangle)]
@@ -109,6 +324,40 @@ pub extern "C" fn gum_tls_key_set_value(key: GumTlsKey, value: gpointer) {
     gthread::g_private_set(key as *mut GPrivate, value)
 }
 
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_barebone_on_registry_activating(registry: *mut GumModuleRegistry) {
+    let kernel_base = crate::xnu::get_kernel_base();
+
+    unsafe {
+        let module_infos = core::ptr::addr_of!(crate::MODULE_INFO);
+        let module_infos = &*module_infos;
+
+        let mut i = 0;
+        for module_info in module_infos.iter() {
+            let module_base = kernel_base + module_info.offset as u64;
+
+            let module_path = if i == 0 {
+                "/System/Library/Kernels/kernel"
+            } else {
+                &format!(
+                    "/System/Library/Extensions/{}.kext/{}",
+                    module_info.name, module_info.name
+                )
+            };
+            let module_range = GumMemoryRange {
+                base_address: module_base,
+                size: module_info.size as u64,
+            };
+
+            let module = gum_native_module_new(&module_path, &module_info.version, &module_range);
+            gum_barebone_register_module(registry, module);
+            g_object_unref(module as gpointer);
+
+            i += 1;
+        }
+    }
+}
+
 #[repr(C)]
 pub struct GumNativeModule {
     parent: GObject,
@@ -139,7 +388,7 @@ fn gum_native_module_get_type() -> GType {
                 class_size: core::mem::size_of::<GObjectClass>() as u16,
                 base_init: None,
                 base_finalize: None,
-                class_init: Some(crate::signed_to_be_called_back(gum_native_module_class_init, 0)),
+                class_init: Some(gum_native_module_class_init),
                 class_finalize: None,
                 class_data: core::ptr::null(),
                 instance_size: core::mem::size_of::<GumNativeModule>() as u16,
@@ -151,12 +400,12 @@ fn gum_native_module_get_type() -> GType {
             let new_type = g_type_register_static(g_object_get_type(), type_name, &type_info, 0);
 
             let interface_info = _GInterfaceInfo {
-                interface_init: Some(crate::signed_to_be_called_back(gum_native_module_iface_init, 0)),
+                interface_init: Some(gum_native_module_iface_init),
                 interface_finalize: None,
                 interface_data: core::ptr::null_mut(),
             };
 
-            g_type_add_interface_static(new_type, crate::bindings::gum_module_get_type(), &interface_info);
+            g_type_add_interface_static(new_type, gum_module_get_type(), &interface_info);
 
             g_once_init_leave(
                 core::ptr::addr_of_mut!(GUM_NATIVE_MODULE_TYPE) as *mut ::core::ffi::c_void,
@@ -174,29 +423,18 @@ unsafe extern "C" fn gum_native_module_class_init(klass: gpointer, _class_data:
 
         GUM_NATIVE_MODULE_PARENT_CLASS = g_type_class_peek_parent(klass) as *mut GObjectClass;
 
-        (*object_class).finalize = Some(crate::signed_to_be_called_back(gum_native_module_finalize, 0));
+        (*object_class).finalize = Some(gum_native_module_finalize);
     }
 }
 
 extern "C" fn gum_native_module_iface_init(g_iface: gpointer, _iface_data: gpointer) {
     unsafe {
         let iface = g_iface as *mut GumModuleInterface;
-        (*iface).get_name = Some(crate::signed_to_be_called_back(gum_native_module_get_name, 0));
-        (*iface).get_version = Some(crate::signed_to_be_called_back(gum_native_module_get_version, 0));
-        (*iface).get_path = Some(crate::signed_to_be_called_back(gum_native_module_get_path, 0));
-        (*iface).get_range = Some(crate::signed_to_be_called_back(gum_native_module_get_range, 0));
-        (*iface).enumerate_exports = Some(crate::signed_to_be_called_back(gum_native_module_enumerate_exports, 0));
-        #[cfg(any(feature = "win9x", feature = "winnt"))]
-        {
-            (*iface).enumerate_imports =
-                Some(crate::signed_to_be_called_back(gum_native_module_enumerate_imports, 0));
-        }
-        (*iface).find_export_by_name = Some(crate::signed_to_be_called_back(gum_native_module_find_export_by_name, 0));
-        #[cfg(any(feature = "linux", feature = "linux-injected"))]
-        {
-            (*iface).enumerate_symbols =
-                Some(crate::signed_to_be_called_back(gum_native_module_enumerate_symbols, 0));
-        }
+        (*iface).get_name = Some(gum_native_module_get_name);
+        (*iface).get_version = Some(gum_native_module_get_version);
+        (*iface).get_path = Some(gum_native_module_get_path);
+        (*iface).get_range = Some(gum_native_module_get_range);
+        (*iface).enumerate_exports = Some(gum_native_module_enumerate_exports);
     }
 }
 
@@ -210,36 +448,22 @@ unsafe extern "C" fn gum_native_module_finalize(object: *mut GObject) {
     }
 }
 
-pub(crate) fn gum_native_module_new(
-    path: &str,
-    version: &str,
-    range: &GumMemoryRange,
-) -> *mut GumModule {
+fn gum_native_module_new(path: &str, version: &str, range: &GumMemoryRange) -> *mut GumModule {
     unsafe {
         let path_cstr = CString::new(path).unwrap();
+        let version_cstr = CString::new(version).unwrap();
 
         let module =
             g_object_new(gum_native_module_get_type(), ptr::null()) as *mut GumNativeModule;
         (*module).path = g_strdup(path_cstr.as_ptr());
-        let name_offset = path.rfind(['/', '\\']).map_or(0, |at| at + 1);
-        (*module).name = (*module).path.add(name_offset);
-        (*module).version = version_copied(version);
+        (*module).name = (*module).path.add(path.rfind('/').unwrap() + 1);
+        (*module).version = g_strdup(version_cstr.as_ptr());
         (*module).range = *range;
 
         module as *mut GumModule
     }
 }
 
-fn version_copied(version: &str) -> *mut gchar {
-    if version.is_empty() {
-        return ptr::null_mut();
-    }
-
-    let copy = CString::new(version).unwrap();
-
-    unsafe { g_strdup(copy.as_ptr()) }
-}
-
 extern "C" fn gum_native_module_get_name(module: *mut GumModule) -> *const gchar {
     unsafe {
         let native_module = module as *mut GumNativeModule;
@@ -268,34 +492,6 @@ extern "C" fn gum_native_module_get_range(module: *mut GumModule) -> *const GumM
     }
 }
 
-unsafe extern "C" fn gum_native_module_find_export_by_name(
-    self_: *mut GumModule,
-    symbol_name: *const gchar,
-) -> GumAddress {
-    unsafe {
-        let module = self_ as *mut GumNativeModule;
-        let range = (*module).range;
-        let wanted = CStr::from_ptr(symbol_name);
-
-        let mut found = 0;
-        let mut on_export = |name: *const gchar, address: u64| {
-            if CStr::from_ptr(name) == wanted {
-                found = address;
-            }
-
-            found == 0
-        };
-
-        enumerate_exports_in_range(
-            range.base_address,
-            range.base_address + range.size as u64,
-            &mut on_export,
-        );
-
-        found
-    }
-}
-
 unsafe extern "C" fn gum_native_module_enumerate_exports(
     self_: *mut GumModule,
     func: GumFoundExportFunc,
@@ -303,320 +499,134 @@ unsafe extern "C" fn gum_native_module_enumerate_exports(
 ) {
     unsafe {
         let module = self_ as *mut GumNativeModule;
-        let range = (*module).range;
+        let module_range = &(*module).range;
+
+        let symbol_table = core::ptr::addr_of!(crate::SYMBOL_TABLE);
+        let symbol_table = &*symbol_table;
+
+        const N_EXT: u8 = 0x01; // External symbol flag
+        const N_TYPE: u8 = 0x0e; // Type mask
+        const N_SECT: u8 = 0x0e; // Defined in section
+
+        let start_address = module_range.base_address;
+        let end_address = module_range.base_address + module_range.size;
+
+        for symbol_ref in symbol_table.iter_symbols_in_range(start_address, end_address) {
+            let is_external = (symbol_ref.symbol_type() & N_EXT) != 0;
+            let is_defined = (symbol_ref.symbol_type() & N_TYPE) == N_SECT;
+            if !is_external || !is_defined {
+                continue;
+            }
+
+            let export_type = GumExportType_GUM_EXPORT_FUNCTION;
 
-        let mut on_export = |name: *const gchar, address: u64| {
             let export_details = GumExportDetails {
-                type_: GumExportType_GUM_EXPORT_FUNCTION,
-                name,
-                address,
+                type_: export_type,
+                name: g_strdup(symbol_ref.name_ptr()),
+                address: symbol_ref.address(),
                 size: -1,
             };
 
-            func.unwrap()(&export_details as *const GumExportDetails, user_data) != 0
-        };
-
-        enumerate_exports_in_range(
-            range.base_address,
-            range.base_address + range.size as u64,
-            &mut on_export,
-        );
-    }
-}
-
-#[cfg(any(feature = "win9x", feature = "winnt"))]
-unsafe extern "C" fn gum_native_module_enumerate_imports(
-    self_: *mut GumModule,
-    func: GumFoundImportFunc,
-    user_data: gpointer,
-) {
-    unsafe {
-        let module = self_ as *mut GumNativeModule;
-        let base = (*module).range.base_address;
-
-        let mut on_import = |library: *const gchar, name: *const gchar, slot: u64, address: u64| {
-            let details = GumImportDetails {
-                type_: GumImportType_GUM_IMPORT_FUNCTION,
-                name,
-                module: library,
-                address,
-                slot,
-            };
-
-            func.unwrap()(&details as *const GumImportDetails, user_data) != 0
-        };
-
-        enumerate_imports_in_module(base, &mut on_import);
-    }
-}
-
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-unsafe extern "C" fn gum_native_module_enumerate_symbols(
-    self_: *mut GumModule,
-    func: GumFoundSymbolFunc,
-    user_data: gpointer,
-) {
-    unsafe {
-        let module = self_ as *mut GumNativeModule;
-        let range = (*module).range;
-
-        let mut on_symbol = |name: *const gchar, address: u64, size: u64, kind: u8, global: bool| {
-            let details = GumSymbolDetails {
-                is_global: global as gboolean,
-                type_: match kind {
-                    SYMBOL_IS_FUNCTION => GumSymbolType_GUM_SYMBOL_FUNCTION,
-                    SYMBOL_IS_OBJECT => GumSymbolType_GUM_SYMBOL_OBJECT,
-                    _ => GumSymbolType_GUM_SYMBOL_UNKNOWN,
-                },
-                section: ptr::null(),
-                name,
-                address,
-                size: size as gssize,
-            };
-
-            func.unwrap()(&details as *const GumSymbolDetails, user_data) != 0
-        };
-
-        enumerate_symbols_in_range(
-            range.base_address,
-            range.base_address + range.size as u64,
-            &mut on_symbol,
-        );
-    }
-}
-
-/// What the backends implement for `gum_native_module_enumerate_symbols`: call
-/// `callback` for every symbol in `[start, end)`, stopping early when it returns
-/// false.
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-pub(crate) type FoundSymbolCallback<'a> = dyn FnMut(*const gchar, u64, u64, u8, bool) -> bool + 'a;
-
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-const SYMBOL_IS_OBJECT: u8 = 1;
-#[cfg(any(feature = "linux", feature = "linux-injected"))]
-const SYMBOL_IS_FUNCTION: u8 = 2;
-
-/// What the backends implement for `gum_native_module_enumerate_exports`: call
-/// `callback` for every exported function in `[start, end)`, stopping early when
-/// it returns false.
-pub(crate) type FoundExportCallback<'a> = dyn FnMut(*const gchar, u64) -> bool + 'a;
-
-#[cfg(any(feature = "win9x", feature = "winnt"))]
-pub(crate) type FoundImportCallback<'a> = dyn FnMut(*const gchar, *const gchar, u64, u64) -> bool + 'a;
-
-// Code slabs the agent allocates are normal writable RAM, so Gum can keep a real writable alias to
-// them across the slab's lifetime. Pre-existing kernel text is write-protected — CTRR-locked on
-// Apple silicon, STRICT_KERNEL_RWX on Linux — and can only be modified through a separate path, so
-// we treat it differently. We distinguish the two by tracking the executable ranges we hand out.
-static SLAB_LOCK: AtomicU32 = AtomicU32::new(0);
-static mut SLABS: Vec<(u64, u64)> = Vec::new();
-
-fn slab_lock() {
-    while SLAB_LOCK
-        .compare_exchange(0, 1, Ordering::Acquire, Ordering::Relaxed)
-        .is_err()
-    {
-        kernel::yield_now();
-    }
-}
-
-fn slab_unlock() {
-    SLAB_LOCK.store(0, Ordering::Release);
-}
-
-pub(crate) fn register_slab(start: u64, size: usize) {
-    slab_lock();
-    unsafe {
-        (*core::ptr::addr_of_mut!(SLABS)).push((start, start + size as u64));
-    }
-    slab_unlock();
-}
-
-pub(crate) fn unregister_slab(start: u64) {
-    slab_lock();
-    unsafe {
-        (*core::ptr::addr_of_mut!(SLABS)).retain(|&(begin, _)| begin != start);
-    }
-    slab_unlock();
-}
-
-pub(crate) fn is_agent_slab(address: u64) -> bool {
-    slab_lock();
-    let found = unsafe {
-        (*core::ptr::addr_of!(SLABS))
-            .iter()
-            .any(|&(begin, end)| address >= begin && address < end)
-    };
-    slab_unlock();
-    found
-}
-
-// The host gives the symbol table, thus this makes a name from an address.
-#[cfg(feature = "blob")]
-mod symbolication {
-    use super::*;
-    use crate::bindings::{
-        GArray, GumAddress, GumDebugSymbolDetails, g_array_append_vals, g_array_new, gboolean,
-        gconstpointer,
-    };
-    use core::ffi::CStr;
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_symbol_name_from_address(address: gpointer) -> *mut gchar {
-        match closest_to(address) {
-            Some(symbol) => unsafe { g_strdup(symbol.name_ptr()) },
-            None => ptr::null_mut(),
-        }
-    }
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_symbol_details_from_address(
-        address: gpointer,
-        details: *mut GumDebugSymbolDetails,
-    ) -> gboolean {
-        let Some(symbol) = closest_to(address) else {
-            return 0;
-        };
-
-        let details = unsafe { &mut *details };
-        *details = unsafe { core::mem::zeroed() };
-        details.address = address as u64;
-        put_text(symbol.name(), &mut details.symbol_name);
-        if let Some(module) = module_containing(address as u64) {
-            put_text(&module.name, &mut details.module_name);
-        }
-
-        1
-    }
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_module_find_global_export_by_name(name: *const gchar) -> GumAddress {
-        let Some(name) = text_of(name) else {
-            return 0;
-        };
-
-        #[cfg(any(feature = "win9x", feature = "winnt"))]
-        if crate::running_in_a_process() {
-            return export_of_a_process_module(name);
-        }
-
-        #[cfg(feature = "xnu-core")]
-        if crate::xnu::in_copy() {
-            return crate::xnu_mapped::export_named(name);
-        }
-
-        #[cfg(feature = "linux-injected")]
-        if crate::kernel::in_copy() {
-            return crate::kernel::export_named(name);
-        }
-
-        let table = unsafe { &*ptr::addr_of!(crate::SYMBOL_TABLE) };
-
-        match table.find_symbol_by_name(name) {
-            Some(symbol) => symbol.address(),
-            None => 0,
-        }
-    }
-
-    // A copy runs in a process, thus a name without a module means one of the modules of that
-    // process.
-    #[cfg(any(feature = "win9x", feature = "winnt"))]
-    fn export_of_a_process_module(wanted: &str) -> GumAddress {
-        let mut found = 0;
-
-        for module in crate::kernel::enumerate_modules() {
-            crate::kernel::enumerate_exports(module.base as _, &mut |name, address| {
-                if text_of(name as *const gchar) == Some(wanted) {
-                    found = address;
-                }
-                found == 0
-            });
-            if found != 0 {
+            let should_continue =
+                func.unwrap()(&export_details as *const GumExportDetails, user_data);
+            if should_continue == 0 {
                 break;
             }
         }
-
-        found
-    }
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_find_function(name: *const gchar) -> gpointer {
-        let Some(name) = text_of(name) else {
-            return ptr::null_mut();
-        };
-        let table = unsafe { &*ptr::addr_of!(crate::SYMBOL_TABLE) };
-
-        match table.find_symbol_by_name(name) {
-            Some(symbol) => symbol.address() as gpointer,
-            None => ptr::null_mut(),
-        }
-    }
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_find_functions_named(name: *const gchar) -> *mut GArray {
-        let table = unsafe { &*ptr::addr_of!(crate::SYMBOL_TABLE) };
-        let found = text_of(name)
-            .map(|name| table.find_symbols_by_name(name).map(|s| s.address()).collect())
-            .unwrap_or_else(Vec::new);
-
-        pointer_array_of(&found)
-    }
-
-    #[unsafe(no_mangle)]
-    pub extern "C" fn gum_find_functions_matching(pattern: *const gchar) -> *mut GArray {
-        let table = unsafe { &*ptr::addr_of!(crate::SYMBOL_TABLE) };
-        let found = text_of(pattern)
-            .map(|pattern| {
-                table
-                    .find_symbols_matching_glob(pattern)
-                    .map(|s| s.address())
-                    .collect()
-            })
-            .unwrap_or_else(Vec::new);
-
-        pointer_array_of(&found)
-    }
-
-    fn closest_to(address: gpointer) -> Option<crate::symbols::SymbolRef<'static>> {
-        let table = unsafe { &*ptr::addr_of!(crate::SYMBOL_TABLE) };
-        table.find_closest_symbol_by_address(address as u64)
-    }
-
-    fn module_containing(address: u64) -> Option<&'static crate::ModuleInfo> {
-        let modules = unsafe { &*ptr::addr_of!(crate::MODULE_INFO) };
-
-        modules.iter().find(|m| {
-            address >= m.offset as u64 && address < m.offset as u64 + m.size as u64
-        })
-    }
-
-    fn pointer_array_of(addresses: &[u64]) -> *mut GArray {
-        let pointers: Vec<gpointer> = addresses.iter().map(|a| *a as gpointer).collect();
-
-        unsafe {
-            let array = g_array_new(0, 0, core::mem::size_of::<gpointer>() as guint);
-            g_array_append_vals(
-                array,
-                pointers.as_ptr() as gconstpointer,
-                pointers.len() as guint,
-            );
-            array
-        }
-    }
-
-    fn text_of(value: *const gchar) -> Option<&'static str> {
-        if value.is_null() {
-            return None;
-        }
-        unsafe { CStr::from_ptr(value) }.to_str().ok()
-    }
-
-    fn put_text(text: &str, out: &mut [gchar]) {
-        let limit = out.len() - 1;
-        for (i, byte) in text.bytes().take(limit).enumerate() {
-            out[i] = byte as gchar;
-        }
-        out[text.len().min(limit)] = 0;
     }
 }
 
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_symbol_details_from_address(
+    address: gpointer,
+    details: *mut GumDebugSymbolDetails,
+) -> gboolean {
+    unsafe {
+        let table = core::ptr::addr_of!(crate::SYMBOL_TABLE).read();
+        if let Some(symbol) = table.find_symbol_by_address(address as u64) {
+            let name_bytes = symbol.name().as_bytes();
+            let copy_len = core::cmp::min(name_bytes.len(), 2048);
+            core::ptr::copy_nonoverlapping(
+                name_bytes.as_ptr(),
+                (*details).symbol_name.as_mut_ptr() as *mut u8,
+                copy_len,
+            );
+            (*details).symbol_name[copy_len] = 0;
+
+            (*details).address = symbol.address();
+
+            (*details).module_name[0] = 0;
+            (*details).file_name[0] = 0;
+            (*details).line_number = 0;
+            (*details).column = 0;
+
+            return 1;
+        }
+
+        0
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_symbol_name_from_address(address: gpointer) -> *mut gchar {
+    unsafe {
+        let table = core::ptr::addr_of!(crate::SYMBOL_TABLE).read();
+        let name_ptr = table.find_symbol_name_ptr_by_address(address as u64);
+        g_strdup(name_ptr as *const gchar)
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_find_function(name: *const gchar) -> gpointer {
+    unsafe {
+        let target_name = CStr::from_ptr(name).to_string_lossy();
+        let table = core::ptr::addr_of!(crate::SYMBOL_TABLE).read();
+
+        if let Some(symbol) = table.find_symbol_by_name(&target_name) {
+            return symbol.address() as gpointer;
+        }
+
+        core::ptr::null_mut()
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_find_functions_named(name: *const gchar) -> *mut GArray {
+    unsafe {
+        let array = g_array_new(0, 0, core::mem::size_of::<gpointer>() as guint);
+
+        let target_name = CStr::from_ptr(name).to_string_lossy();
+        let table = core::ptr::addr_of!(crate::SYMBOL_TABLE).read();
+
+        let symbols = table.find_symbols_by_name(&target_name);
+        for symbol in symbols {
+            let addr = symbol.address() as gpointer;
+            g_array_append_vals(array, &addr as *const gpointer as gconstpointer, 1);
+        }
+
+        array
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_find_functions_matching(pattern: *const gchar) -> *mut GArray {
+    unsafe {
+        let array = g_array_new(0, 0, core::mem::size_of::<gpointer>() as guint);
+
+        let glob_pattern = CStr::from_ptr(pattern).to_string_lossy();
+        let table = core::ptr::addr_of!(crate::SYMBOL_TABLE).read();
+
+        let symbols = table.find_symbols_matching_glob(&glob_pattern);
+        for symbol in symbols {
+            let addr = symbol.address() as gpointer;
+            g_array_append_vals(array, &addr as *const gpointer as gconstpointer, 1);
+        }
+
+        array
+    }
+}
+
+#[unsafe(no_mangle)]
+pub extern "C" fn gum_load_symbols(_path: *const gchar) -> gboolean {
+    0
+}

src/barebone/agent/src/gum_btf.rs

@@ -1,393 +0,0 @@
-use alloc::ffi::CString;
-use alloc::string::String;
-use core::ffi::{CStr, c_char};
-
-use crate::bindings::{
-    GError, GumScriptApiValue, _GumScriptApiType_GUM_SCRIPT_API_BOOLEAN,
-    _GumScriptApiType_GUM_SCRIPT_API_STRING, _GumScriptApiType_GUM_SCRIPT_API_UINT, gboolean,
-    gpointer, gum_script_api_add_function, gum_script_api_new, gum_script_api_registry_add,
-    gum_script_api_registry_obtain, gum_script_api_set_prelude, gum_script_api_unref,
-};
-use crate::linux::layout::{
-    enumerate_constants_in, enumerate_fields_in, enumerate_parameters_in, field_offset_in,
-    find_constant, name_of_type, resolve_struct, size_of_struct, size_of_type, types_are_described,
-};
-
-pub fn publish() {
-    unsafe {
-        let api = gum_script_api_new(c"Btf".as_ptr());
-
-        gum_script_api_add_function(
-            api,
-            c"_findStruct".as_ptr(),
-            c"s".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_UINT,
-            Some(crate::signed_to_be_called_back(on_find_struct, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_sizeOf".as_ptr(),
-            c"u".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_UINT,
-            Some(crate::signed_to_be_called_back(on_size_of, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_findOffsetOf".as_ptr(),
-            c"us".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_UINT,
-            Some(crate::signed_to_be_called_back(on_find_offset, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_fieldsOf".as_ptr(),
-            c"u".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_STRING,
-            Some(crate::signed_to_be_called_back(on_fields_of, 0)),
-            core::ptr::null_mut(),
-        );
-
-        gum_script_api_add_function(
-            api,
-            c"_findConstant".as_ptr(),
-            c"s".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_STRING,
-            Some(crate::signed_to_be_called_back(on_find_constant, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_constantsOf".as_ptr(),
-            c"s".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_STRING,
-            Some(crate::signed_to_be_called_back(on_constants_of, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_signatureOf".as_ptr(),
-            c"s".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_STRING,
-            Some(crate::signed_to_be_called_back(on_signature_of, 0)),
-            core::ptr::null_mut(),
-        );
-        gum_script_api_add_function(
-            api,
-            c"_isAvailable".as_ptr(),
-            c"".as_ptr(),
-            _GumScriptApiType_GUM_SCRIPT_API_BOOLEAN,
-            Some(crate::signed_to_be_called_back(on_is_available, 0)),
-            core::ptr::null_mut(),
-        );
-
-        gum_script_api_set_prelude(api, PRELUDE.as_ptr());
-
-        gum_script_api_registry_add(gum_script_api_registry_obtain(), api);
-        gum_script_api_unref(api);
-    }
-}
-
-unsafe extern "C" fn on_find_struct(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let container = unsafe { text_of(args, 0) };
-
-    let handle = resolve_struct(container).map_or(NOTHING, |handle| (handle + 1) as u32);
-
-    unsafe { (*retval).__bindgen_anon_1.u = handle };
-
-    1
-}
-
-unsafe extern "C" fn on_size_of(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let handle = unsafe { handle_of(args, 0) };
-
-    unsafe { (*retval).__bindgen_anon_1.u = size_of_struct(handle) as u32 };
-
-    1
-}
-
-unsafe extern "C" fn on_find_offset(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let handle = unsafe { handle_of(args, 0) };
-    let field = unsafe { text_of(args, 1) };
-
-    let offset = field_offset_in(handle, field).map_or(NOWHERE, |offset| offset as u32);
-
-    unsafe { (*retval).__bindgen_anon_1.u = offset };
-
-    1
-}
-
-unsafe extern "C" fn on_is_available(
-    _args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    unsafe { (*retval).__bindgen_anon_1.b = types_are_described() as gboolean };
-
-    1
-}
-
-unsafe extern "C" fn on_fields_of(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let handle = unsafe { handle_of(args, 0) };
-
-    let mut described = String::from("{");
-    let mut separator = "";
-    enumerate_fields_in(handle, &mut |name, field| {
-        described.push_str(&alloc::format!(
-            "{separator}\"{name}\":{{\"offset\":{},\"size\":{},\"type\":\"{}\"",
-            field.offset,
-            size_of_type(field.id),
-            name_of_type(field.id)
-        ));
-        if field.bit_size != 0 {
-            described.push_str(&alloc::format!(
-                ",\"bitOffset\":{},\"bitSize\":{}",
-                field.bit_offset, field.bit_size
-            ));
-        }
-        described.push('}');
-        separator = ",";
-        true
-    });
-    described.push('}');
-
-    unsafe { answer_with(retval, described) };
-
-    1
-}
-
-unsafe extern "C" fn on_find_constant(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let name = unsafe { text_of(args, 0) };
-
-    let described = find_constant(name).map_or_else(String::new, |value| alloc::format!("{value}"));
-
-    unsafe { answer_with(retval, described) };
-
-    1
-}
-
-unsafe extern "C" fn on_constants_of(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let container = unsafe { text_of(args, 0) };
-
-    let mut described = String::from("{");
-    let mut separator = "";
-    let found = enumerate_constants_in(container, &mut |name, value| {
-        described.push_str(&alloc::format!("{separator}\"{name}\":{value}"));
-        separator = ",";
-    });
-    described.push('}');
-
-    unsafe { answer_with(retval, if found { described } else { String::new() }) };
-
-    1
-}
-
-unsafe extern "C" fn on_signature_of(
-    args: *const GumScriptApiValue,
-    retval: *mut GumScriptApiValue,
-    _user_data: gpointer,
-    _error: *mut *mut GError,
-) -> gboolean {
-    let name = unsafe { text_of(args, 0) };
-
-    let mut parameters = String::from("[");
-    let mut separator = "";
-    let returned = enumerate_parameters_in(name, &mut |name, kind| {
-        parameters.push_str(&alloc::format!(
-            "{separator}{{\"name\":\"{name}\",\"type\":\"{kind}\"}}"
-        ));
-        separator = ",";
-    });
-    parameters.push(']');
-
-    let described = match returned {
-        Some(returned) => {
-            alloc::format!("{{\"returns\":\"{returned}\",\"parameters\":{parameters}}}")
-        }
-        None => String::new(),
-    };
-
-    unsafe { answer_with(retval, described) };
-
-    1
-}
-
-unsafe fn answer_with(retval: *mut GumScriptApiValue, described: String) {
-    unsafe {
-        let holder = (&raw mut LAST_ANSWER).as_mut().unwrap();
-        *holder = Some(CString::new(described).unwrap());
-        (*retval).__bindgen_anon_1.s = holder.as_ref().unwrap().as_ptr();
-    }
-}
-
-static mut LAST_ANSWER: Option<CString> = None;
-
-const NOTHING: u32 = 0;
-const NOWHERE: u32 = u32::MAX;
-
-unsafe fn handle_of(args: *const GumScriptApiValue, index: usize) -> usize {
-    unsafe { (*args.add(index)).__bindgen_anon_1.u as usize - 1 }
-}
-
-unsafe fn text_of(args: *const GumScriptApiValue, index: usize) -> &'static str {
-    unsafe {
-        CStr::from_ptr((*args.add(index)).__bindgen_anon_1.s as *const c_char)
-            .to_str()
-            .unwrap_or("")
-    }
-}
-
-const PRELUDE: &CStr = c"
-(() => {
-    const { _findStruct, _sizeOf, _findOffsetOf, _fieldsOf, _findConstant, _constantsOf,
-        _signatureOf, _isAvailable } = Btf;
-
-    const NOWHERE = 0xffffffff;
-
-    class BtfStruct {
-        constructor(name, handle) {
-            this.name = name;
-            this.handle = handle;
-            this.size = _sizeOf(handle);
-            this.known = new Map();
-        }
-
-        getOffsetOf(field) {
-            const offset = this.findOffsetOf(field);
-            if (offset === null)
-                throw new Error(`${this.name}: unable to find field '${field}'`);
-            return offset;
-        }
-
-        findOffsetOf(field) {
-            let offset = this.known.get(field);
-            if (offset === undefined) {
-                offset = _findOffsetOf(this.handle, field);
-                if (offset === NOWHERE)
-                    return null;
-                this.known.set(field, offset);
-            }
-            return offset;
-        }
-
-        get fields() {
-            const fields = JSON.parse(_fieldsOf(this.handle));
-            Object.defineProperty(this, 'fields', { value: fields });
-            return fields;
-        }
-
-        toString() {
-            return `BtfStruct(${this.name}, size: ${this.size})`;
-        }
-    }
-
-    const resolved = new Map();
-    const functions = new Map();
-
-    Btf.available = _isAvailable();
-
-    Btf.getStruct = name => {
-        const described = Btf.findStruct(name);
-        if (described === null)
-            throw new Error(`unable to find struct '${name}'`);
-        return described;
-    };
-
-    Btf.findStruct = name => {
-        let described = resolved.get(name);
-        if (described === undefined) {
-            const handle = _findStruct(name);
-            if (handle === 0)
-                return null;
-            described = new BtfStruct(name, handle);
-            resolved.set(name, described);
-        }
-        return described;
-    };
-
-    Btf.getConstant = name => {
-        const value = Btf.findConstant(name);
-        if (value === null)
-            throw new Error(`unable to find constant '${name}'`);
-        return value;
-    };
-
-    Btf.findConstant = name => {
-        const value = _findConstant(name);
-        if (value === '')
-            return null;
-        return numberFrom(value);
-    };
-
-    Btf.getEnum = name => {
-        const constants = Btf.findEnum(name);
-        if (constants === null)
-            throw new Error(`unable to find enum '${name}'`);
-        return constants;
-    };
-
-    Btf.findEnum = name => {
-        const constants = _constantsOf(name);
-        if (constants === '')
-            return null;
-        return JSON.parse(constants);
-    };
-
-    Btf.getFunction = name => {
-        const signature = Btf.findFunction(name);
-        if (signature === null)
-            throw new Error(`unable to find function '${name}'`);
-        return signature;
-    };
-
-    Btf.findFunction = name => {
-        let signature = functions.get(name);
-        if (signature === undefined) {
-            const described = _signatureOf(name);
-            if (described === '')
-                return null;
-            signature = JSON.parse(described);
-            functions.set(name, signature);
-        }
-        return signature;
-    };
-
-    function numberFrom(text) {
-        const value = parseInt(text);
-        return Number.isSafeInteger(value) ? value : int64(text);
-    }
-})();
-";