subprojects: Prepare for release

Numeric pre-release identifiers like "202508252028" would
fail validation because parse_uint() rejects values beyond
UINT32_MAX. The same overflow affected version comparison,
which also used uint.

Fix validation to only check the semver-mandated rule that
numeric identifiers must not have leading zeros, and fix
comparison to use length-prefixed string comparison, which
handles arbitrarily large numeric identifiers correctly.

.github/workflows/ci.yml

@@ -331,7 +331,7 @@ jobs:
         if: startsWith(matrix.id, 'android-')
         id: setup-ndk
         with:
-          ndk-version: r25c
+          ndk-version: r29
       - name: Add NDK to env
         if: startsWith(matrix.id, 'android-')
         run: echo ANDROID_NDK_ROOT=${{ steps.setup-ndk.outputs.ndk-path }} >> $GITHUB_ENV
@@ -428,6 +428,7 @@ jobs:
   # in, and we want to ensure that they are up-to-date with respect to the source
   # for all architectures.
   check-linux-helpers:
+    if: false
     strategy:
       matrix:
         arch: [x86, x86_64, arm, armbe8, arm64, arm64be, arm64beilp32, mips, mipsel, mips64, mips64el]
@@ -445,7 +446,7 @@ jobs:
       - name: Check for unexpected changes
         run: |
           git config --global --add safe.directory "$(realpath .)"
-          status_output=$(git status --porcelain tests/labrats/{resident-agent,simple-agent}-linux-${{ matrix.arch }}.so tests/labrats/{forker,sleeper,spawner}-linux-${{ matrix.arch }})
+          status_output=$(git status --porcelain src/linux/helpers/artifacts)
           if [ -n "$status_output" ]; then
             echo "Unexpected changes detected:"
             echo "$status_output"
@@ -461,6 +462,7 @@ jobs:
   # in, and we want to ensure that they are up-to-date with respect to the source
   # for all architectures.
   check-labrats:
+    if: false
     strategy:
       matrix:
         arch: [x86, x86_64, arm, armbe8, arm64, arm64be, arm64beilp32, mips, mipsel, mips64, mips64el]
@@ -478,7 +480,7 @@ jobs:
       - name: Check for unexpected changes
         run: |
           git config --global --add safe.directory "$(realpath .)"
-          status_output=$(git status --porcelain src/linux/helpers/{bootstrapper,loader}-${{ matrix.arch }}.bin)
+          status_output=$(git status --porcelain tests/labrats/{resident-agent,simple-agent}-linux-${{ matrix.arch }}.so tests/labrats/{forker,sleeper,spawner}-linux-${{ matrix.arch }})
           if [ -n "$status_output" ]; then
             echo "Unexpected changes detected:"
             echo "$status_output"

compat/build.py

@@ -149,9 +149,20 @@ def setup(role: Role,
             other_triplet: Optional[str] = None
             extra_environ: dict[str, str] = {}
 
-            if host_os == "windows" and host_arch == "x86_64" and host_config == "mingw":
-                other_label = "x86"
-                have_toolchain, other_triplet = detect_mingw_toolchain_for("x86")
+            if host_os == "windows" and host_arch in {"x86_64", "x86"}:
+                if host_arch == "x86_64":
+                    other_label = "x86"
+                    other_kind = "legacy"
+                else:
+                    other_label = "x86_64"
+                    other_kind = "modern"
+
+                if host_config == "mingw":
+                    have_toolchain, other_triplet = detect_mingw_toolchain_for(other_label)
+                else:
+                    have_toolchain = True
+                    other_triplet = None
+
             elif host_os == "linux" and host_arch == "x86_64" and host_config is None:
                 other_label = "x86"
                 other_triplet = "i686-linux-gnu"
@@ -179,21 +190,21 @@ def setup(role: Role,
                     raise ToolchainNotFoundError(f"unable to locate toolchain for {other_triplet}")
                 missing.append(MissingFeature(other_label, other_triplet))
 
-            if host_os == "windows" and host_arch == "x86_64" and have_toolchain:
-                group = OutputGroup("x86", other_triplet, extra_environ)
+            if host_os == "windows" and host_arch in {"x86_64", "x86"} and have_toolchain:
+                group = OutputGroup(other_label, other_triplet, extra_environ)
                 outputs[group] = [
-                    Output(identifier="helper_legacy",
+                    Output(identifier=f"helper_{other_kind}",
                            name=HELPER_FILE_WINDOWS.name,
                            file=HELPER_FILE_WINDOWS,
                            target=HELPER_TARGET),
-                    Output(identifier="agent_legacy",
+                    Output(identifier=f"agent_{other_kind}",
                            name=AGENT_FILE_WINDOWS.name,
                            file=AGENT_FILE_WINDOWS,
                            target=AGENT_TARGET),
                 ]
                 if "gadget" in components:
                     outputs[group] += [
-                        Output(identifier="gadget_legacy",
+                        Output(identifier=f"gadget_{other_kind}",
                                name=GADGET_FILE_WINDOWS.name,
                                file=GADGET_FILE_WINDOWS,
                                target=GADGET_TARGET),

inject/meson.build

@@ -4,27 +4,14 @@ inject_sources = [
 ]
 
 system_vala_args = []
-
 if host_os_family != 'windows'
   system_vala_args += ['--pkg=posix']
 endif
 
-extra_link_args = []
-extra_link_depends = []
-if host_os_family == 'darwin'
-  symlist = 'frida-inject.symbols'
-  extra_link_args += ['-Wl,-exported_symbols_list,' + meson.current_source_dir() / symlist]
-  extra_link_depends += [symlist]
-elif host_os_family != 'windows'
-  symscript = 'frida-inject.version'
-  extra_link_args += ['-Wl,--version-script,' + meson.current_source_dir() / symscript]
-  extra_link_depends += [symscript]
-endif
-
 raw_inject = executable('frida-inject-raw', inject_sources,
   vala_args: [core_vala_args, system_vala_args],
-  link_args: extra_link_args,
-  link_depends: extra_link_depends,
+  link_args: executable_no_exports_link_args,
+  link_depends: executable_no_exports_link_depends,
   dependencies: [json_glib_dep, core_dep],
 )
 

lib/agent/agent-glue.c

@@ -51,6 +51,8 @@ void
 _frida_agent_environment_deinit (void)
 {
 #ifndef HAVE_MUSL
+  frida_libc_shim_prepare_to_deinit ();
+
   gum_shutdown ();
   gio_shutdown ();
   glib_shutdown ();

lib/agent/frida-agent-glibc.version

@@ -0,0 +1,14 @@
+FRIDA_1.0 {
+  global:
+    frida_agent_main;
+
+  local:
+    *;
+};
+
+GLIBC_2.2.5 {
+  local:
+    fopen*;
+    fseeko*;
+    ftello*;
+} FRIDA_1.0;

lib/agent/meson.build

@@ -28,7 +28,13 @@ if host_os_family == 'windows'
 elif host_os_family == 'darwin'
   extra_link_args += '-Wl,-exported_symbol,_frida_agent_main'
 else
-  symscript = (host_os == 'android') ? 'frida-agent-android.version' : 'frida-agent.version'
+  if libc == 'glibc'
+    symscript = 'frida-agent-glibc.version'
+  elif host_os == 'android'
+    symscript = 'frida-agent-android.version'
+  else
+    symscript = 'frida-agent.version'
+  endif
   extra_link_args += '-Wl,--version-script,' + meson.current_source_dir() / symscript
   extra_link_depends += symscript
 endif

lib/base/buffer.vala

@@ -309,8 +309,17 @@ namespace Frida {
 
 	public sealed class Buffer : Object {
 		public Bytes bytes {
-			get;
-			construct;
+			get {
+				if (_bytes == null)
+					_bytes = new Bytes.static (_data);
+				return _bytes;
+			}
+		}
+
+		public size_t size {
+			get {
+				return _data.length;
+			}
 		}
 
 		public ByteOrder byte_order {
@@ -323,20 +332,39 @@ namespace Frida {
 			construct;
 		}
 
-		private unowned uint8 * data;
-		private size_t size;
+		private Bytes? _bytes;
+		private unowned uint8[] _data;
 
 		public Buffer (Bytes bytes, ByteOrder byte_order = HOST, uint pointer_size = (uint) sizeof (size_t)) {
 			Object (
-				bytes: bytes,
 				byte_order: byte_order,
 				pointer_size: pointer_size
 			);
+
+			reset_bytes (bytes);
 		}
 
-		construct {
-			data = bytes.get_data ();
-			size = bytes.get_size ();
+		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) {
@@ -470,17 +498,13 @@ namespace Frida {
 			return *((double *) &bits);
 		}
 
-		public string read_string (size_t offset) throws Error {
+		public unowned string read_string (size_t offset) throws Error {
 			string * start = (string *) get_pointer (offset, sizeof (char));
-			size_t max_length = size - offset;
+			size_t max_length = _data.length - offset;
 			string * end = memchr (start, 0, max_length);
 			if (end == null)
 				throw new Error.PROTOCOL ("Missing null character");
-			size_t size = end - start;
-			string val = start->substring (0, (long) size);
-			if (!val.validate ())
-				throw new Error.PROTOCOL ("Invalid UTF-8 string");
-			return val;
+			return start;
 		}
 
 		[CCode (cname = "memchr", cheader_filename = "string.h")]
@@ -488,17 +512,14 @@ namespace Frida {
 
 		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, this.size - offset);
+			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;
-			string val = start->substring (0, (long) n);
-			if (!val.validate ())
-				throw new Error.PROTOCOL ("Invalid UTF-8 string");
-			return val;
+			return start->substring (0, (long) n);
 		}
 
 		public unowned Buffer write_string (size_t offset, string val) {
@@ -508,9 +529,14 @@ namespace Frida {
 		}
 
 		public Bytes read_bytes (size_t offset, size_t size) {
-			var data = new uint8[size + 1];
-			Memory.copy (data, get_pointer (offset, size), size);
-			return new Bytes.take ((owned) data);
+			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) {
@@ -521,129 +547,49 @@ namespace Frida {
 
 		private uint8 * get_pointer (size_t offset, size_t n) {
 			size_t minimum_size = offset + n;
-			assert (size >= minimum_size);
-
-			return data + offset;
+			assert (_data.length >= minimum_size);
+			return (uint8 *) _data + offset;
 		}
 	}
 
 	public sealed class BufferReader {
+		public Buffer buffer {
+			get;
+		}
+
 		public size_t offset {
-			get {
-				return _offset;
-			}
+			get;
 		}
 
 		public size_t available {
 			get {
-				return buffer.bytes.get_size () - _offset;
+				return _size - _offset;
 			}
 		}
 
-		private Buffer buffer;
-		private size_t _offset = 0;
+		private size_t _size;
 
-		public BufferReader (Buffer buf) {
-			buffer = buf;
+		public BufferReader (Buffer buffer) {
+			reset (buffer);
 		}
 
-		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 void reset (Buffer buffer) {
+			_buffer = buffer;
+			_size = buffer.size;
+			_offset = 0;
 		}
 
-		public int8 read_int8 () throws Error {
-			check_available (sizeof (int8));
-			var val = buffer.read_int8 (_offset);
-			_offset += sizeof (int8);
-			return val;
+		public void reset_at (Buffer buffer, size_t offset) throws Error {
+			_buffer = buffer;
+			_size = buffer.size;
+			seek (offset);
 		}
 
-		public uint8 read_uint8 () throws Error {
-			check_available (sizeof (uint8));
-			var val = buffer.read_uint8 (_offset);
-			_offset += sizeof (uint8);
-			return val;
-		}
-
-		public int16 read_int16 () throws Error {
-			check_available (sizeof (int16));
-			var val = buffer.read_int16 (_offset);
-			_offset += sizeof (int16);
-			return val;
-		}
-
-		public uint16 read_uint16 () throws Error {
-			check_available (sizeof (uint16));
-			var val = buffer.read_uint16 (_offset);
-			_offset += sizeof (uint16);
-			return val;
-		}
-
-		public int32 read_int32 () throws Error {
-			check_available (sizeof (int32));
-			var val = buffer.read_int32 (_offset);
-			_offset += sizeof (int32);
-			return val;
-		}
-
-		public uint32 read_uint32 () throws Error {
-			check_available (sizeof (uint32));
-			var val = buffer.read_uint32 (_offset);
-			_offset += sizeof (uint32);
-			return val;
-		}
-
-		public int64 read_int64 () throws Error {
-			check_available (sizeof (int64));
-			var val = buffer.read_int64 (_offset);
-			_offset += sizeof (int64);
-			return val;
-		}
-
-		public uint64 read_uint64 () throws Error {
-			check_available (sizeof (uint64));
-			var val = buffer.read_uint64 (_offset);
-			_offset += sizeof (uint64);
-			return val;
-		}
-
-		public float read_float () throws Error {
-			check_available (sizeof (float));
-			var val = buffer.read_float (_offset);
-			_offset += sizeof (float);
-			return val;
-		}
-
-		public double read_double () throws Error {
-			check_available (sizeof (double));
-			var val = buffer.read_double (_offset);
-			_offset += sizeof (double);
-			return val;
-		}
-
-		public string read_string () throws Error {
-			check_available (1);
-			var val = buffer.read_string (_offset);
-			_offset += val.length + 1;
-			return val;
-		}
-
-		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 Bytes read_bytes (size_t size) throws Error {
-			check_available (size);
-			var val = buffer.bytes[_offset:_offset + size];
-			_offset += size;
-			return val;
+		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 {
@@ -652,6 +598,195 @@ namespace Frida {
 			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");

lib/base/frida-atomics.h

@@ -1,18 +1,26 @@
 #ifndef __FRIDA_ATOMICS_H__
 #define __FRIDA_ATOMICS_H__
 
+#include <glib.h>
+
+G_BEGIN_DECLS
+
 #ifdef _MSC_VER
 
 /* TODO: Add once needed. */
 
 #else
 
-static inline guint64 frida_atomics_load_u64_acquire (volatile guint64 * p)
+typedef guint64 FridaAtomicU64 __attribute__ ((aligned (8)));
+
+static inline guint64
+frida_atomics_load_u64_acquire (volatile FridaAtomicU64 * p)
 {
   return __atomic_load_n (p, __ATOMIC_ACQUIRE);
 }
 
-static inline void frida_atomics_store_u64_release (volatile guint64 * p, guint64 v)
+static inline void
+frida_atomics_store_u64_release (volatile FridaAtomicU64 * p, guint64 v)
 {
   __atomic_store_n (p, v, __ATOMIC_RELEASE);
 }
@@ -24,4 +32,6 @@ static inline guint32 frida_atomics_load_u32_acquire (volatile guint32 * p)
 
 #endif
 
+G_END_DECLS
+
 #endif

lib/base/frida-atomics.vapi

@@ -1,6 +1,6 @@
 [CCode (cheader_filename = "frida-atomics.h")]
 namespace Frida.Atomics {
-	public static uint64 load_u64_acquire (void * p);
-	public static void store_u64_release (void * p, uint64 v);
-	public static uint32 load_u32_acquire (void * p);
+	public static uint64 load_u64_acquire (uint64 * p);
+	public static void store_u64_release (uint64 * p, uint64 v);
+	public static uint32 load_u32_acquire (uint32 * p);
 }

lib/base/frida-darwin.h

@@ -6,6 +6,8 @@
 #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);
 
@@ -17,6 +19,8 @@ void _frida_xpc_connection_send_message_with_reply (xpc_connection_t connection,
 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-jni.h

@@ -0,0 +1,41 @@
+#ifndef __FRIDA_JNI_H__
+#define __FRIDA_JNI_H__
+
+#include <jni.h>
+
+G_BEGIN_DECLS
+
+typedef jint         (* JNIDestroyJavaVMFunc)         (JavaVM *);
+typedef jint         (* JNIAttachCurrentThreadFunc)   (JavaVM *, JNIEnv **, void *);
+typedef jint         (* JNIDetachCurrentThreadFunc)   (JavaVM *);
+typedef jint         (* JNIGetEnvFunc)                (JavaVM *, JNIEnv **, jint);
+
+typedef jclass       (* JNIFindClassFunc)             (JNIEnv *, const char *);
+
+typedef jthrowable   (* JNIExceptionOccurredFunc)     (JNIEnv *);
+typedef void         (* JNIExceptionDescribeFunc)     (JNIEnv *);
+typedef void         (* JNIExceptionClearFunc)        (JNIEnv *);
+
+typedef jint         (* JNIPushLocalFrameFunc)        (JNIEnv *, jint);
+typedef jobject      (* JNIPopLocalFrameFunc)         (JNIEnv *, jobject);
+
+typedef jobject      (* JNINewGlobalRefFunc)          (JNIEnv *, jobject);
+typedef void         (* JNIDeleteGlobalRefFunc)       (JNIEnv *, jobject);
+typedef void         (* JNIDeleteLocalRefFunc)        (JNIEnv *, jobject);
+
+typedef jobject      (* JNINewObjectFunc)             (JNIEnv *, jclass, jmethodID, ...);
+
+typedef jclass       (* JNIGetObjectClassFunc)        (JNIEnv *, jobject);
+typedef jmethodID    (* JNIGetMethodIDFunc)           (JNIEnv *, jclass, const char *, const char *);
+
+typedef jobject      (* JNICallObjectMethodFunc)      (JNIEnv *, jobject, jmethodID, ...);
+
+typedef jstring      (* JNINewStringUTFFunc)          (JNIEnv *, const char *);
+typedef const char * (* JNIGetStringUTFCharsFunc)     (JNIEnv *, jstring, jboolean *);
+typedef void         (* JNIReleaseStringUTFCharsFunc) (JNIEnv *, jstring, const char *);
+
+typedef jboolean     (* JNIExceptionCheckFunc)        (JNIEnv *);
+
+G_END_DECLS
+
+#endif

lib/base/linux.vala

@@ -46,7 +46,7 @@ namespace Frida {
 	public extern unowned LinuxSyscallSignature[]? get_compat32_syscall_signatures ();
 
 	public struct LinuxSyscallSignature {
-		public uint nr;
+		public int nr;
 		public string name;
 		public uint8 nargs;
 		public LinuxSyscallArg args[6];
@@ -141,7 +141,7 @@ namespace Frida {
 		private char[] kernel_log_buf;
 
 		public static BpfObject open (string name, uint8[] blob) throws Error {
-			var log_buf = new char[64 * 1024];
+			var log_buf = new char[128 * 1024];
 
 			var opts = Libbpf.Object.OpenOpts ();
 			opts.sz = sizeof (Libbpf.Object.OpenOpts);
@@ -348,6 +348,18 @@ namespace Frida {
 			remove_raw ((uint8[]) &key);
 		}
 
+		public void update_u64_u8 (uint64 key, uint8 val) throws Error {
+			update_raw ((uint8[]) &key, (uint8[]) &val);
+		}
+
+		public void update_u64_u32 (uint64 key, uint32 val) throws Error {
+			update_raw ((uint8[]) &key, (uint8[]) &val);
+		}
+
+		public void remove_u64 (uint64 key) throws Error {
+			remove_raw ((uint8[]) &key);
+		}
+
 		public void foreach_percpu_value<T> (uint8[] key, PercpuValueFunc<T> func) throws Error {
 			var ncpus = check_libbpf_result (Libbpf.num_possible_cpus ());
 			var percpu_stride = round_up_8 (value_size);

lib/base/meson.build

@@ -15,6 +15,8 @@ base_sources = [
   'buffer.vala',
   'buffer-glue.c',
   'value.vala',
+  'xnu-syscalls' / 'xnu-syscalls.vala',
+  'xnu-syscalls' / 'xnu-syscalls-glue.c',
 ]
 
 extra_vala_args = []

lib/base/session.vala

@@ -2170,7 +2170,10 @@ namespace Frida {
 
 		public static string enum_to_nick<T> (int val) {
 			var klass = (EnumClass) typeof (T).class_ref ();
-			return klass.get_value (val).value_nick;
+			unowned EnumValue? v = klass.get_value (val);
+			if (v == null)
+				return "unknown-0x%x".printf (val);
+			return v.value_nick;
 		}
 	}
 
@@ -2196,5 +2199,13 @@ namespace Frida {
 			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.vala

@@ -940,6 +940,9 @@ namespace Frida {
 					Memory.copy (buffer, recv_queue.data, n);
 					recv_queue.remove_range (0, (uint) n);
 
+					if (recv_queue.len == 0)
+						websocket.resume_input ();
+
 					update_pending_io ();
 				} else {
 					if (state == OPEN)
@@ -1006,6 +1009,7 @@ namespace Frida {
 		private void on_message (int type, Bytes message) {
 			with_state_lock (() => {
 				recv_queue.append (message.get_data ());
+				websocket.pause_input ();
 				update_pending_io ();
 			});
 		}

lib/base/xnu-syscalls/generate-bindings.py

@@ -0,0 +1,860 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from __future__ import annotations
+
+import argparse
+import re
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Dict, List, Optional, Tuple
+
+MAX_ARGS = 9
+
+
+@dataclass(frozen=True)
+class SyscallArg:
+    type: str
+    name: str
+
+
+@dataclass(frozen=True)
+class SyscallSignature:
+    name: str
+    args: Tuple[SyscallArg, ...]
+
+
+MACH_TRAP_INDEXED_CALL_RE = re.compile(r"/\*\s*(?P<idx>\d+)\s*\*/\s*MACH_TRAP\s*\(")
+MACH_TRAPS_IFNDEF_KERNEL_RE = re.compile(r"^\s*#ifndef\s+KERNEL\b", re.MULTILINE)
+MACH_TRAPS_ELSE_KERNEL_RE = re.compile(r"^\s*#else\b.*\bKERNEL\b", re.MULTILINE)
+
+USER_EXTERN_PROTO_RE = re.compile(
+    r"^\s*extern\s+(?P<ret>.+?)\s+(?P<fn>[A-Za-z_]\w*)\s*\((?P<args>.*?)\)\s*;",
+    re.MULTILINE | re.DOTALL,
+)
+KERNEL_STRUCT_RE = re.compile(
+    r"\bstruct\s+(?P<name>[A-Za-z_]\w*)\s*\{\s*(?P<body>.*?)\s*\}\s*;",
+    re.DOTALL,
+)
+KERNEL_TRAP_EXTERN_RE = re.compile(
+    r"^\s*(?:extern\s+)?(?P<ret>.+?)\s+(?P<fn>[A-Za-z_]\w*)\s*\(\s*struct\s+(?P<args_struct>[A-Za-z_]\w*)\s*\*\s*args\s*\)\s*;",
+    re.MULTILINE | re.DOTALL,
+)
+PAD_ARG_RE = re.compile(
+    r"\bPAD_ARG_\s*\(\s*(?P<ty>[^,]+?)\s*,\s*(?P<name>[^)]+?)\s*\)\s*;",
+)
+PLAIN_FIELD_RE = re.compile(r"^\s*(?P<ty>.+?)\s+(?P<name>[A-Za-z_]\w*)\s*;\s*$")
+
+BSD_MASTER_ENTRY_RE = re.compile(
+    r"^\s*(?P<nr>\d+)\s+(?P<audit>\S+)\s+(?P<files>\S+)\s+\{\s*(?P<proto>[^}]+?)\s*\}\s*(?:\{.*\})?\s*$"
+)
+BSD_MASTER_PROTO_RE = re.compile(
+    r"^\s*(?P<ret>.+?)\s+(?P<fn>[A-Za-z_]\w*)\s*\((?P<args>.*)\)\s*(?P<attrs>.*)$",
+    re.DOTALL,
+)
+
+LINE_COMMENT_RE = re.compile(r"//.*$")
+BLOCK_COMMENT_RE = re.compile(r"/\*[^*]*\*+(?:[^/*][^*]*\*+)*/")
+
+TRAILING_ARRAY_SUFFIX_RE = re.compile(r"\[[^\]]*\]\s*$")
+POINTER_SPACING_RE = re.compile(r"\s*\*\s*")
+PARAM_NAME_RE = re.compile(r"[A-Za-z_]\w*$")
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--kernel-tree", required=True)
+    ap.add_argument("--out-vala", required=True)
+    ap.add_argument("--out-c", required=True)
+    args = ap.parse_args()
+
+    kernel_tree = Path(args.kernel_tree).resolve()
+    if not kernel_tree.exists():
+        raise SystemExit(f"--kernel-tree does not exist: {kernel_tree}")
+
+    mach_numbers, mach_sigs = load_mach_traps(kernel_tree)
+    bsd_numbers, bsd_sigs = load_bsd_syscalls_master(kernel_tree)
+
+    vala = render_vala(
+        mach_numbers=mach_numbers,
+        bsd_numbers=bsd_numbers,
+    )
+    c_src = render_c_source(
+        mach_numbers=mach_numbers,
+        bsd_numbers=bsd_numbers,
+        mach_sigs=mach_sigs,
+        bsd_sigs=bsd_sigs,
+    )
+
+    out_vala = Path(args.out_vala)
+    out_c = Path(args.out_c)
+    out_vala.parent.mkdir(parents=True, exist_ok=True)
+    out_c.parent.mkdir(parents=True, exist_ok=True)
+    out_vala.write_text(vala, encoding="utf-8")
+    out_c.write_text(c_src, encoding="utf-8")
+
+    return 0
+
+
+def load_mach_traps(
+    kernel_tree: Path,
+) -> Tuple[Dict[int, str], Dict[str, SyscallSignature]]:
+    table_path = kernel_tree / "osfmk" / "kern" / "syscall_sw.c"
+    if not table_path.exists():
+        raise RuntimeError(f"Missing Mach trap table source: {table_path}")
+
+    header_path = kernel_tree / "osfmk" / "mach" / "mach_traps.h"
+    if not header_path.exists():
+        raise RuntimeError(f"Missing Mach traps header: {header_path}")
+
+    table_text = table_path.read_text(encoding="utf-8", errors="ignore")
+    trap_routines = parse_mach_trap_table(table_text, table_path)
+
+    header_text = header_path.read_text(encoding="utf-8", errors="ignore")
+    userspace_text, kernel_text = split_mach_traps_header(header_text, header_path)
+
+    userspace_protos = parse_userspace_mach_traps_prototypes(
+        userspace_text, header_path
+    )
+    kernel_argmap = parse_kernel_mach_traps_args(kernel_text, header_path)
+
+    numbers: Dict[int, str] = {}
+    sigs: Dict[str, SyscallSignature] = {}
+
+    for index, routine in trap_routines:
+        if routine == "kern_invalid":
+            continue
+
+        nr = -index
+        public_name = normalize_mach_name(routine)
+        if public_name == "":
+            raise RuntimeError(f"{table_path}: empty normalized name from {routine!r}")
+
+        if nr in numbers:
+            raise RuntimeError(f"{table_path}: duplicate mach trap number {nr}")
+        if public_name in sigs:
+            raise RuntimeError(
+                f"{table_path}: normalized Mach name collision for {public_name!r}"
+            )
+
+        args = resolve_mach_trap_signature(
+            routine=routine,
+            userspace_protos=userspace_protos,
+            kernel_argmap=kernel_argmap,
+            table_path=table_path,
+        )
+
+        if len(args) > MAX_ARGS:
+            raise RuntimeError(
+                f"{table_path}: trap {routine!r} has {len(args)} args; max supported is {MAX_ARGS}"
+            )
+
+        numbers[nr] = public_name
+        sigs[public_name] = SyscallSignature(name=public_name, args=tuple(args))
+
+    return numbers, sigs
+
+
+def parse_mach_trap_table(text: str, path: Path) -> List[Tuple[int, str]]:
+    anchor = text.find("mach_trap_table")
+    if anchor == -1:
+        raise RuntimeError(f"{path}: mach_trap_table not found")
+
+    brace = text.find("{", anchor)
+    if brace == -1:
+        raise RuntimeError(f"{path}: mach_trap_table '{{' not found")
+
+    payload, _ = extract_brace_payload(text, brace, path)
+
+    by_index: Dict[int, str] = {}
+
+    off = 0
+    while True:
+        m = MACH_TRAP_INDEXED_CALL_RE.search(payload, off)
+        if m is None:
+            break
+
+        idx = int(m.group("idx"), 10)
+        open_paren = m.end(0) - 1
+        args_blob, end_off = extract_parentheses_payload(payload, open_paren, path)
+
+        parts = [
+            a.strip() for a in split_top_level_commas(args_blob) if a.strip() != ""
+        ]
+        if len(parts) < 1:
+            raise RuntimeError(f"{path}: bad MACH_TRAP() entry: {args_blob!r}")
+
+        routine = parts[0]
+
+        prev = by_index.get(idx)
+        if prev is None:
+            by_index[idx] = routine
+        else:
+            if prev == routine:
+                pass
+            elif prev == "kern_invalid" and routine != "kern_invalid":
+                by_index[idx] = routine
+            elif routine == "kern_invalid" and prev != "kern_invalid":
+                pass
+            else:
+                raise RuntimeError(
+                    f"{path}: conflicting MACH_TRAP entries for index {idx}: {prev!r} vs {routine!r}"
+                )
+
+        off = end_off
+
+    return sorted(by_index.items(), key=lambda kv: kv[0])
+
+
+def split_mach_traps_header(text: str, path: Path) -> Tuple[str, str]:
+    m_start = MACH_TRAPS_IFNDEF_KERNEL_RE.search(text)
+    if m_start is None:
+        raise RuntimeError(f"{path}: missing '#ifndef KERNEL'")
+
+    m_else = MACH_TRAPS_ELSE_KERNEL_RE.search(text, m_start.end())
+    if m_else is None:
+        raise RuntimeError(f"{path}: missing '#else ... KERNEL ...'")
+
+    userspace = text[m_start.end():m_else.start()]
+    kernel = text[m_else.end():]
+    return userspace, kernel
+
+
+def parse_userspace_mach_traps_prototypes(
+    userspace_text: str, path: Path
+) -> Dict[str, Tuple[SyscallArg, ...]]:
+    protos: Dict[str, Tuple[SyscallArg, ...]] = {}
+
+    for m in USER_EXTERN_PROTO_RE.finditer(userspace_text):
+        fn = m.group("fn").strip()
+        args_blob = m.group("args").strip()
+        ret_blob = strip_c_comments(m.group("ret")).strip()
+        if ret_blob == "":
+            raise RuntimeError(f"{path}: empty return type for {fn!r}")
+
+        line_no = line_number_at_offset(userspace_text, m.start())
+
+        args = parse_c_param_list(args_blob, path, line_no)
+        cur = tuple(args)
+
+        prev = protos.get(fn)
+        if prev is not None and prev != cur:
+            raise RuntimeError(f"{path}:{line_no}: conflicting prototype for {fn!r}")
+
+        protos[fn] = cur
+
+    return protos
+
+
+def parse_kernel_mach_traps_args(
+    kernel_text: str, path: Path
+) -> Dict[str, Tuple[SyscallArg, ...]]:
+    text = strip_c_comments(kernel_text)
+
+    structs: Dict[str, str] = {}
+    for m in KERNEL_STRUCT_RE.finditer(text):
+        name = m.group("name").strip()
+        body = m.group("body")
+        structs[name] = body
+
+    fn_to_struct: Dict[str, str] = {}
+    for m in KERNEL_TRAP_EXTERN_RE.finditer(text):
+        fn = m.group("fn").strip()
+        args_struct = m.group("args_struct").strip()
+        fn_to_struct[fn] = args_struct
+
+    out: Dict[str, Tuple[SyscallArg, ...]] = {}
+
+    for fn, args_struct in fn_to_struct.items():
+        body = structs.get(args_struct)
+        if body is None:
+            continue
+
+        args = parse_mach_args_struct_body(body, path)
+        out[fn] = tuple(args)
+
+    return out
+
+
+def parse_mach_args_struct_body(body: str, path: Path) -> List[SyscallArg]:
+    args: List[SyscallArg] = []
+
+    body = strip_c_comments(body)
+    for raw_ln in body.splitlines():
+        ln = raw_ln.strip()
+        if ln == "" or ln.startswith("#"):
+            continue
+        if "PAD_ARG_8" in ln:
+            continue
+
+        m = PAD_ARG_RE.search(ln)
+        if m is not None:
+            ty = normalize_whitespace(m.group("ty").strip())
+            name = normalize_whitespace(m.group("name").strip())
+            if ty == "" or name == "":
+                raise RuntimeError(f"{path}: bad PAD_ARG_ in args struct: {raw_ln!r}")
+            args.append(SyscallArg(type=ty, name=name))
+            continue
+
+        m = PLAIN_FIELD_RE.match(ln)
+        if m is not None:
+            ty = normalize_whitespace(m.group("ty").strip())
+            name = m.group("name").strip()
+            if ty == "" or name == "":
+                raise RuntimeError(f"{path}: bad field in args struct: {raw_ln!r}")
+            args.append(SyscallArg(type=ty, name=name))
+            continue
+
+    if len(args) == 1 and args[0].name == "dummy":
+        return []
+
+    return args
+
+
+def resolve_mach_trap_signature(
+    *,
+    routine: str,
+    userspace_protos: Dict[str, Tuple[SyscallArg, ...]],
+    kernel_argmap: Dict[str, Tuple[SyscallArg, ...]],
+    table_path: Path,
+) -> List[SyscallArg]:
+    def get_userspace(name: str) -> Optional[Tuple[SyscallArg, ...]]:
+        return userspace_protos.get(name)
+
+    def get_kernel(name: str) -> Optional[Tuple[SyscallArg, ...]]:
+        return kernel_argmap.get(name)
+
+    proto_args = get_userspace(routine)
+
+    if proto_args is None and routine.endswith("_trap"):
+        proto_args = get_userspace(routine[: -len("_trap")])
+
+    if proto_args is not None:
+        return list(proto_args)
+
+    proto_args = get_kernel(routine)
+    if proto_args is None and routine.endswith("_trap"):
+        proto_args = get_kernel(routine[: -len("_trap")])
+
+    if proto_args is None:
+        raise RuntimeError(
+            f"{table_path}: missing userspace prototype for {routine!r}, and no kernel extern(struct *_args *args) mapping found"
+        )
+
+    return list(proto_args)
+
+
+def normalize_mach_name(routine: str) -> str:
+    if routine.startswith("_"):
+        routine = routine[1:]
+    if routine.startswith("kernelrpc_"):
+        routine = routine[len("kernelrpc_"):]
+    if routine.endswith("_trap"):
+        routine = routine[: -len("_trap")]
+    return routine
+
+
+def load_bsd_syscalls_master(
+    kernel_tree: Path,
+) -> Tuple[Dict[int, str], Dict[str, SyscallSignature]]:
+    path = kernel_tree / "bsd" / "kern" / "syscalls.master"
+    if not path.exists():
+        raise RuntimeError(f"Missing BSD master file: {path}")
+
+    numbers: Dict[int, str] = {}
+    sigs: Dict[str, SyscallSignature] = {}
+
+    lines = path.read_text(encoding="utf-8", errors="ignore").splitlines()
+
+    stack: List[bool] = []
+    active = True
+
+    for line_no, raw in enumerate(lines, start=1):
+        line = raw.rstrip("\n")
+        stripped = line.lstrip()
+
+        if (
+            stripped.startswith("#if ")
+            or stripped.startswith("#ifdef ")
+            or stripped.startswith("#ifndef ")
+        ):
+            stack.append(active)
+            continue
+
+        if stripped.startswith("#else"):
+            if not stack:
+                raise RuntimeError(f"{path}:{line_no}: #else without #if")
+            active = False
+            continue
+
+        if stripped.startswith("#endif"):
+            if not stack:
+                raise RuntimeError(f"{path}:{line_no}: #endif without #if")
+            active = stack.pop()
+            continue
+
+        if not active:
+            continue
+
+        m = BSD_MASTER_ENTRY_RE.match(line)
+        if m is None:
+            continue
+
+        nr = int(m.group("nr"), 10)
+        proto_blob = strip_c_comments(m.group("proto")).strip()
+
+        mp = BSD_MASTER_PROTO_RE.match(proto_blob)
+        if mp is None:
+            raise RuntimeError(
+                f"{path}:{line_no}: cannot parse prototype: {proto_blob!r}"
+            )
+
+        fn = mp.group("fn").strip()
+        args_blob = mp.group("args").strip()
+
+        if fn in {"nosys", "enosys"}:
+            continue
+
+        public_name = normalize_bsd_name(fn)
+        if public_name == "":
+            raise RuntimeError(f"{path}:{line_no}: empty normalized name from {fn!r}")
+
+        if nr in numbers:
+            raise RuntimeError(f"{path}:{line_no}: duplicate syscall number {nr}")
+        if public_name in sigs:
+            raise RuntimeError(
+                f"{path}:{line_no}: duplicate syscall name {public_name!r}"
+            )
+
+        args = parse_c_param_list(args_blob, path, line_no)
+
+        if len(args) > MAX_ARGS:
+            raise RuntimeError(
+                f"{path}:{line_no}: syscall {public_name!r} has {len(args)} args; max supported is {MAX_ARGS}"
+            )
+
+        numbers[nr] = public_name
+        sigs[public_name] = SyscallSignature(name=public_name, args=tuple(args))
+
+    return numbers, sigs
+
+
+def normalize_bsd_name(fn: str) -> str:
+    if fn.startswith("sys_"):
+        return fn[len("sys_"):]
+    if fn.startswith("__"):
+        return fn[2:]
+    return fn
+
+
+def strip_c_comments(s: str) -> str:
+    s = LINE_COMMENT_RE.sub("", s)
+    while True:
+        new_s = BLOCK_COMMENT_RE.sub("", s)
+        if new_s == s:
+            break
+        s = new_s
+    return s
+
+
+def split_top_level_commas(text: str) -> List[str]:
+    parts: List[str] = []
+    buf: List[str] = []
+    depth = 0
+    in_string = False
+    string_quote = ""
+
+    cursor = 0
+    while cursor < len(text):
+        ch = text[cursor]
+
+        if in_string:
+            buf.append(ch)
+            if ch == "\\" and cursor + 1 < len(text):
+                buf.append(text[cursor + 1])
+                cursor += 2
+                continue
+            if ch == string_quote:
+                in_string = False
+            cursor += 1
+            continue
+
+        if ch in ("'", '"'):
+            in_string = True
+            string_quote = ch
+            buf.append(ch)
+            cursor += 1
+            continue
+
+        if ch == "(":
+            depth += 1
+        elif ch == ")":
+            depth = max(0, depth - 1)
+
+        if ch == "," and depth == 0:
+            parts.append("".join(buf).strip())
+            buf = []
+            cursor += 1
+            continue
+
+        buf.append(ch)
+        cursor += 1
+
+    parts.append("".join(buf).strip())
+    return parts
+
+
+def parse_c_param_list(args_blob: str, path: Path, line_no: int) -> List[SyscallArg]:
+    raw = strip_c_comments(args_blob).strip()
+    if raw == "" or raw == "void":
+        return []
+
+    raw_params = [p.strip() for p in split_top_level_commas(raw) if p.strip() != ""]
+    if len(raw_params) == 1 and raw_params[0] == "void":
+        return []
+
+    args: List[SyscallArg] = []
+    for idx, p in enumerate(raw_params):
+        ty, name = split_param_decl(p, path, line_no)
+        if name is None:
+            name = f"arg{idx}"
+        if ty == "user_addr_t" and name in {"attrname", "link", "path"}:
+            ty = "char *"
+        args.append(SyscallArg(type=ty, name=name))
+    return args
+
+
+def split_param_decl(decl: str, path: Path, line_no: int) -> Tuple[str, Optional[str]]:
+    d = strip_c_comments(decl).strip()
+
+    if d == "" or d == "void":
+        raise RuntimeError(f"{path}:{line_no}: bad parameter decl: {decl!r}")
+
+    tokens = _tokenize_decl(d)
+    ty_tokens, name = _split_type_and_name(tokens)
+
+    ty = _format_type(ty_tokens)
+    if not ty:
+        raise RuntimeError(
+            f"{path}:{line_no}: cannot parse parameter type from {decl!r}"
+        )
+
+    return ty, _camel_to_snake(name) if name else None
+
+
+def _tokenize_decl(s: str) -> list[str]:
+    out = []
+    for c in s:
+        out.append(" * " if c == "*" else c)
+    return "".join(out).split()
+
+
+def _split_type_and_name(tokens: list[str]) -> Tuple[list[str], Optional[str]]:
+    if not tokens:
+        return [], None
+
+    last = tokens[-1]
+
+    if last == "*":
+        return tokens, None
+
+    stars, remainder = _split_leading_stars(last)
+    if stars:
+        if _is_identifier(remainder):
+            return tokens[:-1] + ["*"] * stars, remainder
+        return tokens, None
+
+    if _is_identifier(last):
+        return tokens[:-1], last
+
+    return tokens, None
+
+
+def _format_type(tokens: list[str]) -> str:
+    formatted: list[str] = []
+    i = 0
+    while i < len(tokens):
+        if tokens[i] != "*":
+            formatted.append(tokens[i])
+            i += 1
+            continue
+
+        j = i
+        while j < len(tokens) and tokens[j] == "*":
+            j += 1
+        formatted.append("*" * (j - i))
+        i = j
+
+    return " ".join(formatted).strip()
+
+
+def _split_leading_stars(token: str) -> Tuple[int, str]:
+    i = 0
+    while i < len(token) and token[i] == "*":
+        i += 1
+    return i, token[i:]
+
+
+def _is_identifier(s: str) -> bool:
+    if not s:
+        return False
+    if not (s[0].isalpha() or s[0] == "_"):
+        return False
+    return all(c.isalnum() or c == "_" for c in s)
+
+
+def _camel_to_snake(name: str) -> str:
+    out = []
+    for i, c in enumerate(name):
+        if (
+            c.isupper()
+            and i > 0
+            and (name[i - 1].islower() or (i + 1 < len(name) and name[i + 1].islower()))
+        ):
+            out.append("_")
+        out.append(c.lower())
+    return "".join(out)
+
+
+def normalize_whitespace(s: str) -> str:
+    return " ".join(s.split())
+
+
+def line_number_at_offset(text: str, offset: int) -> int:
+    return text.count("\n", 0, offset) + 1
+
+
+def extract_parentheses_payload(
+    text: str, open_paren_offset: int, path: Path
+) -> Tuple[str, int]:
+    if (
+        open_paren_offset < 0
+        or open_paren_offset >= len(text)
+        or text[open_paren_offset] != "("
+    ):
+        raise RuntimeError(f"{path}: expected '(' at offset {open_paren_offset}")
+
+    depth = 0
+    cursor = open_paren_offset
+    start = open_paren_offset + 1
+
+    in_string = False
+    string_quote = ""
+
+    while cursor < len(text):
+        ch = text[cursor]
+
+        if in_string:
+            if ch == "\\":
+                cursor += 2
+                continue
+            if ch == string_quote:
+                in_string = False
+            cursor += 1
+            continue
+
+        if ch in ("'", '"'):
+            in_string = True
+            string_quote = ch
+            cursor += 1
+            continue
+
+        if ch == "(":
+            depth += 1
+        elif ch == ")":
+            depth -= 1
+            if depth == 0:
+                return text[start:cursor], cursor + 1
+
+        cursor += 1
+
+    raise RuntimeError(f"{path}: unterminated parentheses payload")
+
+
+def extract_brace_payload(
+    text: str, open_brace_offset: int, path: Path
+) -> Tuple[str, int]:
+    if (
+        open_brace_offset < 0
+        or open_brace_offset >= len(text)
+        or text[open_brace_offset] != "{"
+    ):
+        raise RuntimeError(f"{path}: expected '{{' at offset {open_brace_offset}")
+
+    depth = 0
+    cursor = open_brace_offset
+    start = open_brace_offset + 1
+
+    in_string = False
+    string_quote = ""
+
+    while cursor < len(text):
+        ch = text[cursor]
+
+        if in_string:
+            if ch == "\\":
+                cursor += 2
+                continue
+            if ch == string_quote:
+                in_string = False
+            cursor += 1
+            continue
+
+        if ch in ("'", '"'):
+            in_string = True
+            string_quote = ch
+            cursor += 1
+            continue
+
+        if ch == "{":
+            depth += 1
+        elif ch == "}":
+            depth -= 1
+            if depth == 0:
+                return text[start:cursor], cursor + 1
+
+        cursor += 1
+
+    raise RuntimeError(f"{path}: unterminated brace payload")
+
+
+def render_vala(*, mach_numbers: Dict[int, str], bsd_numbers: Dict[int, str]) -> str:
+    out: List[str] = []
+
+    out += [
+        "// AUTO-GENERATED FILE. DO NOT EDIT.\n",
+        "\n",
+        "namespace Frida {\n",
+        "\tpublic extern unowned XnuSyscallSignature[] get_xnu_mach_traps ();\n",
+        "\tpublic extern unowned XnuSyscallSignature[] get_xnu_bsd_syscalls ();\n",
+        "\n",
+        "\tpublic struct XnuSyscallSignature {\n",
+        "\t\tpublic int nr;\n",
+        "\t\tpublic string name;\n",
+        "\t\tpublic uint8 nargs;\n",
+        f"\t\tpublic XnuSyscallArg args[{MAX_ARGS}];\n",
+        "\t}\n",
+        "\n",
+        "\tpublic struct XnuSyscallArg {\n",
+        "\t\tpublic string? type;\n",
+        "\t\tpublic string? name;\n",
+        "\t}\n",
+        "\n",
+        "\tpublic enum XnuMachTrap {\n",
+    ]
+
+    for nr, name in sorted(mach_numbers.items(), key=lambda kv: kv[0], reverse=True):
+        out += [f"\t\t{name.upper()} = {nr},\n"]
+
+    out += [
+        "\t}\n",
+        "\n",
+        "\tpublic enum XnuBsdSyscall {\n",
+    ]
+
+    for nr, name in sorted(bsd_numbers.items(), key=lambda kv: kv[0]):
+        out += [f"\t\t{name.upper()} = {nr},\n"]
+
+    out += [
+        "\t}\n",
+        "}\n",
+    ]
+
+    return "".join(out)
+
+
+def render_c_source(
+    *,
+    mach_numbers: Dict[int, str],
+    bsd_numbers: Dict[int, str],
+    mach_sigs: Dict[str, SyscallSignature],
+    bsd_sigs: Dict[str, SyscallSignature],
+) -> str:
+    out: List[str] = []
+
+    out += [
+        "/* AUTO-GENERATED FILE. DO NOT EDIT. */\n",
+        "\n",
+        '#include "frida-base.h"\n',
+        "\n",
+    ]
+
+    emit_c_signature_table(
+        out,
+        c_var="frida_xnu_mach_traps",
+        numbers=mach_numbers,
+        sigs=mach_sigs,
+        reverse=True,
+    )
+
+    emit_c_signature_table(
+        out,
+        c_var="frida_xnu_bsd_syscalls",
+        numbers=bsd_numbers,
+        sigs=bsd_sigs,
+    )
+
+    emit_c_table_getter(
+        out, c_func="frida_get_xnu_mach_traps", c_var="frida_xnu_mach_traps"
+    )
+    out += ["\n"]
+    emit_c_table_getter(
+        out, c_func="frida_get_xnu_bsd_syscalls", c_var="frida_xnu_bsd_syscalls"
+    )
+
+    return "".join(out)
+
+
+def emit_c_signature_table(
+    out: List[str],
+    *,
+    c_var: str,
+    numbers: Dict[int, str],
+    sigs: Dict[str, SyscallSignature],
+    reverse: bool = False,
+) -> None:
+    out += [
+        f"static const FridaXnuSyscallSignature {c_var}[] =\n",
+        "{\n",
+    ]
+
+    for nr, name in sorted(numbers.items(), key=lambda kv: kv[0], reverse=reverse):
+        sig = sigs[name]
+
+        args_parts: List[str] = []
+        for a in sig.args:
+            args_parts += [f"{{ {c_escape(a.type)}, {c_escape(a.name)} }}"]
+
+        args_blob = ", ".join(args_parts)
+
+        if args_blob != "":
+            out += [
+                f"  {{ {nr}, {c_escape(name)}, {len(sig.args)}, {{ {args_blob} }} }},\n"
+            ]
+        else:
+            out += [f"  {{ {nr}, {c_escape(name)}, 0, {{}} }},\n"]
+
+    out += [
+        "};\n",
+        "\n",
+    ]
+
+
+def emit_c_table_getter(out: List[str], *, c_func: str, c_var: str) -> None:
+    out += [
+        "FridaXnuSyscallSignature *\n",
+        f"{c_func} (int * len)\n",
+        "{\n",
+        "  if (len != NULL)\n",
+        f"    *len = G_N_ELEMENTS ({c_var});\n",
+        f"  return (FridaXnuSyscallSignature *) {c_var};\n",
+        "}\n",
+    ]
+
+
+def c_escape(s: str) -> str:
+    return '"' + s.replace("\\", "\\\\").replace('"', '\\"') + '"'
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

lib/base/xnu-syscalls/xnu-syscalls-glue.c

@@ -0,0 +1,542 @@
+/* AUTO-GENERATED FILE. DO NOT EDIT. */
+
+#include "frida-base.h"
+
+static const FridaXnuSyscallSignature frida_xnu_mach_traps[] =
+{
+  { -10, "mach_vm_allocate", 4, { { "mach_port_name_t", "target" }, { "mach_vm_offset_t *", "addr" }, { "mach_vm_size_t", "size" }, { "int", "flags" } } },
+  { -11, "mach_vm_purgable_control", 4, { { "mach_port_name_t", "target" }, { "mach_vm_offset_t", "address" }, { "vm_purgable_t", "control" }, { "int *", "state" } } },
+  { -12, "mach_vm_deallocate", 3, { { "mach_port_name_t", "target" }, { "mach_vm_address_t", "address" }, { "mach_vm_size_t", "size" } } },
+  { -13, "task_dyld_process_info_notify_get", 2, { { "mach_port_name_array_t", "names_addr" }, { "natural_t *", "names_count_addr" } } },
+  { -14, "mach_vm_protect", 5, { { "mach_port_name_t", "target" }, { "mach_vm_address_t", "address" }, { "mach_vm_size_t", "size" }, { "boolean_t", "set_maximum" }, { "vm_prot_t", "new_protection" } } },
+  { -15, "mach_vm_map", 6, { { "mach_port_name_t", "target" }, { "mach_vm_offset_t *", "address" }, { "mach_vm_size_t", "size" }, { "mach_vm_offset_t", "mask" }, { "int", "flags" }, { "vm_prot_t", "cur_protection" } } },
+  { -16, "mach_port_allocate", 3, { { "mach_port_name_t", "target" }, { "mach_port_right_t", "right" }, { "mach_port_name_t *", "name" } } },
+  { -18, "mach_port_deallocate", 2, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" } } },
+  { -19, "mach_port_mod_refs", 4, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_right_t", "right" }, { "mach_port_delta_t", "delta" } } },
+  { -20, "mach_port_move_member", 3, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "member" }, { "mach_port_name_t", "after" } } },
+  { -21, "mach_port_insert_right", 4, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_name_t", "poly" }, { "mach_msg_type_name_t", "poly_poly" } } },
+  { -22, "mach_port_insert_member", 3, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_name_t", "pset" } } },
+  { -23, "mach_port_extract_member", 3, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_name_t", "pset" } } },
+  { -24, "mach_port_construct", 4, { { "mach_port_name_t", "target" }, { "mach_port_options_t *", "options" }, { "uint64_t", "context" }, { "mach_port_name_t *", "name" } } },
+  { -25, "mach_port_destruct", 4, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_delta_t", "srdelta" }, { "uint64_t", "guard" } } },
+  { -26, "mach_reply_port", 0, {} },
+  { -27, "thread_self", 0, {} },
+  { -28, "task_self", 0, {} },
+  { -29, "host_self", 0, {} },
+  { -31, "mach_msg", 7, { { "mach_msg_header_t *", "msg" }, { "mach_msg_option_t", "option" }, { "mach_msg_size_t", "send_size" }, { "mach_msg_size_t", "rcv_size" }, { "mach_port_name_t", "rcv_name" }, { "mach_msg_timeout_t", "timeout" }, { "mach_port_name_t", "notify" } } },
+  { -32, "mach_msg_overwrite", 9, { { "mach_msg_header_t *", "msg" }, { "mach_msg_option_t", "option" }, { "mach_msg_size_t", "send_size" }, { "mach_msg_size_t", "rcv_size" }, { "mach_port_name_t", "rcv_name" }, { "mach_msg_timeout_t", "timeout" }, { "mach_msg_priority_t", "priority" }, { "mach_msg_header_t *", "rcv_msg" }, { "mach_msg_size_t", "rcv_limit" } } },
+  { -33, "semaphore_signal", 1, { { "mach_port_name_t", "signal_name" } } },
+  { -34, "semaphore_signal_all", 1, { { "mach_port_name_t", "signal_name" } } },
+  { -35, "semaphore_signal_thread", 2, { { "mach_port_name_t", "signal_name" }, { "mach_port_name_t", "thread_name" } } },
+  { -36, "semaphore_wait", 1, { { "mach_port_name_t", "wait_name" } } },
+  { -37, "semaphore_wait_signal", 2, { { "mach_port_name_t", "wait_name" }, { "mach_port_name_t", "signal_name" } } },
+  { -38, "semaphore_timedwait", 3, { { "mach_port_name_t", "wait_name" }, { "unsigned int", "sec" }, { "clock_res_t", "nsec" } } },
+  { -39, "semaphore_timedwait_signal", 4, { { "mach_port_name_t", "wait_name" }, { "mach_port_name_t", "signal_name" }, { "unsigned int", "sec" }, { "clock_res_t", "nsec" } } },
+  { -40, "mach_port_get_attributes", 5, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "mach_port_flavor_t", "flavor" }, { "mach_port_info_t", "port_info_out" }, { "mach_msg_type_number_t *", "port_info_out_cnt" } } },
+  { -41, "mach_port_guard", 4, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "uint64_t", "guard" }, { "boolean_t", "strict" } } },
+  { -42, "mach_port_unguard", 3, { { "mach_port_name_t", "target" }, { "mach_port_name_t", "name" }, { "uint64_t", "guard" } } },
+  { -43, "mach_generate_activity_id", 3, { { "mach_port_name_t", "target" }, { "int", "count" }, { "uint64_t *", "activity_id" } } },
+  { -44, "task_name_for_pid", 3, { { "mach_port_name_t", "target_tport" }, { "int", "pid" }, { "mach_port_name_t *", "tn" } } },
+  { -45, "task_for_pid", 3, { { "mach_port_name_t", "target_tport" }, { "int", "pid" }, { "mach_port_name_t *", "t" } } },
+  { -46, "pid_for_task", 2, { { "mach_port_name_t", "t" }, { "int *", "x" } } },
+  { -47, "mach_msg2", 8, { { "void *", "data" }, { "mach_msg_option64_t", "options" }, { "uint64_t", "msgh_bits_and_send_size" }, { "uint64_t", "msgh_remote_and_local_port" }, { "uint64_t", "msgh_voucher_and_id" }, { "uint64_t", "desc_count_and_rcv_name" }, { "uint64_t", "rcv_size_and_priority" }, { "uint64_t", "timeout" } } },
+  { -48, "macx_swapon", 4, { { "uint64_t", "filename" }, { "int", "flags" }, { "int", "size" }, { "int", "priority" } } },
+  { -49, "macx_swapoff", 2, { { "uint64_t", "filename" }, { "int", "flags" } } },
+  { -50, "thread_get_special_reply_port", 0, {} },
+  { -51, "macx_triggers", 4, { { "int", "hi_water" }, { "int", "low_water" }, { "int", "flags" }, { "mach_port_t", "alert_port" } } },
+  { -52, "macx_backing_store_suspend", 1, { { "boolean_t", "suspend" } } },
+  { -53, "macx_backing_store_recovery", 1, { { "int", "pid" } } },
+  { -58, "pfz_exit", 0, {} },
+  { -59, "swtch_pri", 1, { { "int", "pri" } } },
+  { -60, "swtch", 0, {} },
+  { -61, "thread_switch", 3, { { "mach_port_name_t", "thread_name" }, { "int", "option" }, { "mach_msg_timeout_t", "option_time" } } },
+  { -62, "clock_sleep", 5, { { "mach_port_name_t", "clock_name" }, { "sleep_type_t", "sleep_type" }, { "int", "sleep_sec" }, { "int", "sleep_nsec" }, { "mach_timespec_t *", "wakeup_time" } } },
+  { -63, "mach_vm_reclaim_update_kernel_accounting", 2, { { "mach_port_name_t", "target_tport" }, { "uint64_t *", "bytes_reclaimed" } } },
+  { -70, "host_create_mach_voucher", 4, { { "mach_port_name_t", "host" }, { "mach_voucher_attr_raw_recipe_array_t", "recipes" }, { "int", "recipes_size" }, { "mach_port_name_t *", "voucher" } } },
+  { -72, "mach_voucher_extract_attr_recipe", 4, { { "mach_port_name_t", "voucher_name" }, { "mach_voucher_attr_key_t", "key" }, { "mach_voucher_attr_raw_recipe_t", "recipe" }, { "mach_msg_type_number_t *", "recipe_size" } } },
+  { -76, "mach_port_type", 3, { { "ipc_space_t", "task" }, { "mach_port_name_t", "name" }, { "mach_port_type_t *", "ptype" } } },
+  { -77, "mach_port_request_notification", 7, { { "ipc_space_t", "task" }, { "mach_port_name_t", "name" }, { "mach_msg_id_t", "msgid" }, { "mach_port_mscount_t", "sync" }, { "mach_port_name_t", "notify" }, { "mach_msg_type_name_t", "notify_poly" }, { "mach_port_name_t *", "previous" } } },
+  { -88, "exclaves_ctl", 8, { { "mach_port_name_t", "name" }, { "uint32_t", "operation_and_flags" }, { "uint64_t", "identifier" }, { "mach_vm_address_t", "buffer" }, { "mach_vm_size_t", "size" }, { "mach_vm_size_t", "size2" }, { "mach_vm_size_t", "offset" }, { "mach_vm_address_t", "status" } } },
+  { -89, "mach_timebase_info", 1, { { "user_addr_t", "info" } } },
+  { -90, "mach_wait_until", 1, { { "uint64_t", "deadline" } } },
+  { -91, "mk_timer_create", 0, {} },
+  { -92, "mk_timer_destroy", 1, { { "mach_port_name_t", "name" } } },
+  { -93, "mk_timer_arm", 2, { { "mach_port_name_t", "name" }, { "uint64_t", "expire_time" } } },
+  { -94, "mk_timer_cancel", 2, { { "mach_port_name_t", "name" }, { "user_addr_t", "result_time" } } },
+  { -95, "mk_timer_arm_leeway", 4, { { "mach_port_name_t", "name" }, { "uint64_t", "mk_timer_flags" }, { "uint64_t", "expire_time" }, { "uint64_t", "mk_leeway" } } },
+  { -96, "debug_control_port_for_pid", 3, { { "mach_port_name_t", "target_tport" }, { "int", "pid" }, { "mach_port_name_t *", "t" } } },
+  { -100, "iokit_user_client", 8, { { "void *", "userClientRef" }, { "uint32_t", "index" }, { "void *", "p1" }, { "void *", "p2" }, { "void *", "p3" }, { "void *", "p4" }, { "void *", "p5" }, { "void *", "p6" } } },
+};
+
+static const FridaXnuSyscallSignature frida_xnu_bsd_syscalls[] =
+{
+  { 1, "exit", 1, { { "int", "rval" } } },
+  { 2, "fork", 0, {} },
+  { 3, "read", 3, { { "int", "fd" }, { "user_addr_t", "cbuf" }, { "user_size_t", "nbyte" } } },
+  { 4, "write", 3, { { "int", "fd" }, { "user_addr_t", "cbuf" }, { "user_size_t", "nbyte" } } },
+  { 5, "open", 3, { { "char *", "path" }, { "int", "flags" }, { "int", "mode" } } },
+  { 6, "close", 1, { { "int", "fd" } } },
+  { 7, "wait4", 4, { { "int", "pid" }, { "user_addr_t", "status" }, { "int", "options" }, { "user_addr_t", "rusage" } } },
+  { 9, "link", 2, { { "char *", "path" }, { "char *", "link" } } },
+  { 10, "unlink", 1, { { "char *", "path" } } },
+  { 12, "chdir", 1, { { "char *", "path" } } },
+  { 13, "fchdir", 1, { { "int", "fd" } } },
+  { 14, "mknod", 3, { { "char *", "path" }, { "int", "mode" }, { "int", "dev" } } },
+  { 15, "chmod", 2, { { "char *", "path" }, { "int", "mode" } } },
+  { 16, "chown", 3, { { "char *", "path" }, { "int", "uid" }, { "int", "gid" } } },
+  { 18, "getfsstat", 3, { { "user_addr_t", "buf" }, { "int", "bufsize" }, { "int", "flags" } } },
+  { 20, "getpid", 0, {} },
+  { 23, "setuid", 1, { { "uid_t", "uid" } } },
+  { 24, "getuid", 0, {} },
+  { 25, "geteuid", 0, {} },
+  { 26, "ptrace", 4, { { "int", "req" }, { "pid_t", "pid" }, { "caddr_t", "addr" }, { "int", "data" } } },
+  { 27, "recvmsg", 3, { { "int", "s" }, { "struct msghdr *", "msg" }, { "int", "flags" } } },
+  { 28, "sendmsg", 3, { { "int", "s" }, { "caddr_t", "msg" }, { "int", "flags" } } },
+  { 29, "recvfrom", 6, { { "int", "s" }, { "void *", "buf" }, { "size_t", "len" }, { "int", "flags" }, { "struct sockaddr *", "from" }, { "int *", "fromlenaddr" } } },
+  { 30, "accept", 3, { { "int", "s" }, { "caddr_t", "name" }, { "socklen_t *", "anamelen" } } },
+  { 31, "getpeername", 3, { { "int", "fdes" }, { "caddr_t", "asa" }, { "socklen_t *", "alen" } } },
+  { 32, "getsockname", 3, { { "int", "fdes" }, { "caddr_t", "asa" }, { "socklen_t *", "alen" } } },
+  { 33, "access", 2, { { "char *", "path" }, { "int", "flags" } } },
+  { 34, "chflags", 2, { { "char *", "path" }, { "int", "flags" } } },
+  { 35, "fchflags", 2, { { "int", "fd" }, { "int", "flags" } } },
+  { 36, "sync", 0, {} },
+  { 37, "kill", 3, { { "int", "pid" }, { "int", "signum" }, { "int", "posix" } } },
+  { 38, "crossarch_trap", 1, { { "uint32_t", "name" } } },
+  { 39, "getppid", 0, {} },
+  { 41, "dup", 1, { { "u_int", "fd" } } },
+  { 42, "pipe", 0, {} },
+  { 43, "getegid", 0, {} },
+  { 46, "sigaction", 3, { { "int", "signum" }, { "struct __sigaction *", "nsa" }, { "struct sigaction *", "osa" } } },
+  { 47, "getgid", 0, {} },
+  { 48, "sigprocmask", 3, { { "int", "how" }, { "user_addr_t", "mask" }, { "user_addr_t", "omask" } } },
+  { 49, "getlogin", 2, { { "char *", "namebuf" }, { "u_int", "namelen" } } },
+  { 50, "setlogin", 1, { { "char *", "namebuf" } } },
+  { 51, "acct", 1, { { "char *", "path" } } },
+  { 52, "sigpending", 1, { { "struct sigvec *", "osv" } } },
+  { 53, "sigaltstack", 2, { { "struct sigaltstack *", "nss" }, { "struct sigaltstack *", "oss" } } },
+  { 54, "ioctl", 3, { { "int", "fd" }, { "u_long", "com" }, { "caddr_t", "data" } } },
+  { 55, "reboot", 2, { { "int", "opt" }, { "char *", "msg" } } },
+  { 56, "revoke", 1, { { "char *", "path" } } },
+  { 57, "symlink", 2, { { "char *", "path" }, { "char *", "link" } } },
+  { 58, "readlink", 3, { { "char *", "path" }, { "char *", "buf" }, { "int", "count" } } },
+  { 59, "execve", 3, { { "char *", "fname" }, { "char **", "argp" }, { "char **", "envp" } } },
+  { 60, "umask", 1, { { "int", "newmask" } } },
+  { 61, "chroot", 1, { { "char *", "path" } } },
+  { 65, "msync", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "flags" } } },
+  { 66, "vfork", 0, {} },
+  { 67, "oslog_coproc_reg", 3, { { "const char *", "uuid" }, { "const char *", "file_path" }, { "size_t", "file_path_len" } } },
+  { 68, "oslog_coproc", 7, { { "void *", "buff" }, { "uint64_t", "buff_len" }, { "uint32_t", "type" }, { "const char *", "uuid" }, { "uint64_t", "timestamp" }, { "uint32_t", "offset" }, { "uint32_t", "stream_log" } } },
+  { 73, "munmap", 2, { { "caddr_ut", "addr" }, { "size_ut", "len" } } },
+  { 74, "mprotect", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "prot" } } },
+  { 75, "madvise", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "behav" } } },
+  { 78, "mincore", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "user_addr_t", "vec" } } },
+  { 79, "getgroups", 2, { { "u_int", "gidsetsize" }, { "gid_t *", "gidset" } } },
+  { 80, "setgroups", 2, { { "u_int", "gidsetsize" }, { "gid_t *", "gidset" } } },
+  { 81, "getpgrp", 0, {} },
+  { 82, "setpgid", 2, { { "int", "pid" }, { "int", "pgid" } } },
+  { 83, "setitimer", 3, { { "u_int", "which" }, { "struct itimerval *", "itv" }, { "struct itimerval *", "oitv" } } },
+  { 85, "swapon", 0, {} },
+  { 86, "getitimer", 2, { { "u_int", "which" }, { "struct itimerval *", "itv" } } },
+  { 89, "getdtablesize", 0, {} },
+  { 90, "dup2", 2, { { "u_int", "from" }, { "u_int", "to" } } },
+  { 92, "fcntl", 3, { { "int", "fd" }, { "int", "cmd" }, { "long", "arg" } } },
+  { 93, "select", 5, { { "int", "nd" }, { "u_int32_t *", "in" }, { "u_int32_t *", "ou" }, { "u_int32_t *", "ex" }, { "struct timeval *", "tv" } } },
+  { 95, "fsync", 1, { { "int", "fd" } } },
+  { 96, "setpriority", 3, { { "int", "which" }, { "id_t", "who" }, { "int", "prio" } } },
+  { 97, "socket", 3, { { "int", "domain" }, { "int", "type" }, { "int", "protocol" } } },
+  { 98, "connect", 3, { { "int", "s" }, { "caddr_t", "name" }, { "socklen_t", "namelen" } } },
+  { 100, "getpriority", 2, { { "int", "which" }, { "id_t", "who" } } },
+  { 104, "bind", 3, { { "int", "s" }, { "caddr_t", "name" }, { "socklen_t", "namelen" } } },
+  { 105, "setsockopt", 5, { { "int", "s" }, { "int", "level" }, { "int", "name" }, { "caddr_t", "val" }, { "socklen_t", "valsize" } } },
+  { 106, "listen", 2, { { "int", "s" }, { "int", "backlog" } } },
+  { 111, "sigsuspend", 1, { { "sigset_t", "mask" } } },
+  { 116, "gettimeofday", 3, { { "struct timeval *", "tp" }, { "struct timezone *", "tzp" }, { "uint64_t *", "mach_absolute_time" } } },
+  { 117, "getrusage", 2, { { "int", "who" }, { "struct rusage *", "rusage" } } },
+  { 118, "getsockopt", 5, { { "int", "s" }, { "int", "level" }, { "int", "name" }, { "caddr_t", "val" }, { "socklen_t *", "avalsize" } } },
+  { 120, "readv", 3, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "u_int", "iovcnt" } } },
+  { 121, "writev", 3, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "u_int", "iovcnt" } } },
+  { 122, "settimeofday", 2, { { "struct timeval *", "tv" }, { "struct timezone *", "tzp" } } },
+  { 123, "fchown", 3, { { "int", "fd" }, { "int", "uid" }, { "int", "gid" } } },
+  { 124, "fchmod", 2, { { "int", "fd" }, { "int", "mode" } } },
+  { 126, "setreuid", 2, { { "uid_t", "ruid" }, { "uid_t", "euid" } } },
+  { 127, "setregid", 2, { { "gid_t", "rgid" }, { "gid_t", "egid" } } },
+  { 128, "rename", 2, { { "char *", "from" }, { "char *", "to" } } },
+  { 131, "flock", 2, { { "int", "fd" }, { "int", "how" } } },
+  { 132, "mkfifo", 2, { { "char *", "path" }, { "int", "mode" } } },
+  { 133, "sendto", 6, { { "int", "s" }, { "caddr_t", "buf" }, { "size_t", "len" }, { "int", "flags" }, { "caddr_t", "to" }, { "socklen_t", "tolen" } } },
+  { 134, "shutdown", 2, { { "int", "s" }, { "int", "how" } } },
+  { 135, "socketpair", 4, { { "int", "domain" }, { "int", "type" }, { "int", "protocol" }, { "int *", "rsv" } } },
+  { 136, "mkdir", 2, { { "char *", "path" }, { "int", "mode" } } },
+  { 137, "rmdir", 1, { { "char *", "path" } } },
+  { 138, "utimes", 2, { { "char *", "path" }, { "struct timeval *", "tptr" } } },
+  { 139, "futimes", 2, { { "int", "fd" }, { "struct timeval *", "tptr" } } },
+  { 140, "adjtime", 2, { { "struct timeval *", "delta" }, { "struct timeval *", "olddelta" } } },
+  { 142, "gethostuuid", 2, { { "unsigned char *", "uuid_buf" }, { "const struct timespec *", "timeoutp" } } },
+  { 147, "setsid", 0, {} },
+  { 151, "getpgid", 1, { { "pid_t", "pid" } } },
+  { 152, "setprivexec", 1, { { "int", "flag" } } },
+  { 153, "pread", 4, { { "int", "fd" }, { "user_addr_t", "buf" }, { "user_size_t", "nbyte" }, { "off_t", "offset" } } },
+  { 154, "pwrite", 4, { { "int", "fd" }, { "user_addr_t", "buf" }, { "user_size_t", "nbyte" }, { "off_t", "offset" } } },
+  { 155, "nfssvc", 2, { { "int", "flag" }, { "caddr_t", "argp" } } },
+  { 157, "statfs", 2, { { "char *", "path" }, { "struct statfs *", "buf" } } },
+  { 158, "fstatfs", 2, { { "int", "fd" }, { "struct statfs *", "buf" } } },
+  { 159, "unmount", 2, { { "char *", "path" }, { "int", "flags" } } },
+  { 161, "getfh", 2, { { "char *", "fname" }, { "fhandle_t *", "fhp" } } },
+  { 164, "funmount", 2, { { "int", "fd" }, { "int", "flags" } } },
+  { 165, "quotactl", 4, { { "const char *", "path" }, { "int", "cmd" }, { "int", "uid" }, { "caddr_t", "arg" } } },
+  { 167, "mount", 4, { { "char *", "type" }, { "char *", "path" }, { "int", "flags" }, { "caddr_t", "data" } } },
+  { 169, "csops", 4, { { "pid_t", "pid" }, { "uint32_t", "ops" }, { "user_addr_t", "useraddr" }, { "user_size_t", "usersize" } } },
+  { 170, "csops_audittoken", 5, { { "pid_t", "pid" }, { "uint32_t", "ops" }, { "user_addr_t", "useraddr" }, { "user_size_t", "usersize" }, { "user_addr_t", "uaudittoken" } } },
+  { 173, "waitid", 4, { { "idtype_t", "idtype" }, { "id_t", "id" }, { "siginfo_t *", "infop" }, { "int", "options" } } },
+  { 177, "kdebug_typefilter", 2, { { "void **", "addr" }, { "size_t *", "size" } } },
+  { 178, "kdebug_trace_string", 3, { { "uint32_t", "debugid" }, { "uint64_t", "str_id" }, { "const char *", "str" } } },
+  { 179, "kdebug_trace64", 5, { { "uint32_t", "code" }, { "uint64_t", "arg1" }, { "uint64_t", "arg2" }, { "uint64_t", "arg3" }, { "uint64_t", "arg4" } } },
+  { 180, "kdebug_trace", 5, { { "uint32_t", "code" }, { "u_long", "arg1" }, { "u_long", "arg2" }, { "u_long", "arg3" }, { "u_long", "arg4" } } },
+  { 181, "setgid", 1, { { "gid_t", "gid" } } },
+  { 182, "setegid", 1, { { "gid_t", "egid" } } },
+  { 183, "seteuid", 1, { { "uid_t", "euid" } } },
+  { 184, "sigreturn", 3, { { "struct ucontext *", "uctx" }, { "int", "infostyle" }, { "user_addr_t", "token" } } },
+  { 185, "panic_with_data", 5, { { "uuid_t", "uuid" }, { "void *", "addr" }, { "uint32_t", "len" }, { "uint32_t", "flags" }, { "const char *", "msg" } } },
+  { 186, "thread_selfcounts", 3, { { "uint32_t", "kind" }, { "user_addr_t", "buf" }, { "user_size_t", "size" } } },
+  { 187, "fdatasync", 1, { { "int", "fd" } } },
+  { 188, "stat", 2, { { "char *", "path" }, { "user_addr_t", "ub" } } },
+  { 189, "fstat", 2, { { "int", "fd" }, { "user_addr_t", "ub" } } },
+  { 190, "lstat", 2, { { "char *", "path" }, { "user_addr_t", "ub" } } },
+  { 191, "pathconf", 2, { { "char *", "path" }, { "int", "name" } } },
+  { 192, "fpathconf", 2, { { "int", "fd" }, { "int", "name" } } },
+  { 194, "getrlimit", 2, { { "u_int", "which" }, { "struct rlimit *", "rlp" } } },
+  { 195, "setrlimit", 2, { { "u_int", "which" }, { "struct rlimit *", "rlp" } } },
+  { 196, "getdirentries", 4, { { "int", "fd" }, { "char *", "buf" }, { "u_int", "count" }, { "long *", "basep" } } },
+  { 197, "mmap", 6, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "prot" }, { "int", "flags" }, { "int", "fd" }, { "off_t", "pos" } } },
+  { 199, "lseek", 3, { { "int", "fd" }, { "off_t", "offset" }, { "int", "whence" } } },
+  { 200, "truncate", 2, { { "char *", "path" }, { "off_t", "length" } } },
+  { 201, "ftruncate", 2, { { "int", "fd" }, { "off_t", "length" } } },
+  { 202, "sysctl", 6, { { "int *", "name" }, { "u_int", "namelen" }, { "void *", "old" }, { "size_t *", "oldlenp" }, { "void *", "new" }, { "size_t", "newlen" } } },
+  { 203, "mlock", 2, { { "caddr_ut", "addr" }, { "size_ut", "len" } } },
+  { 204, "munlock", 2, { { "caddr_ut", "addr" }, { "size_ut", "len" } } },
+  { 205, "undelete", 1, { { "char *", "path" } } },
+  { 216, "open_dprotected_np", 5, { { "char *", "path" }, { "int", "flags" }, { "int", "class" }, { "int", "dpflags" }, { "int", "mode" } } },
+  { 217, "fsgetpath_ext", 5, { { "user_addr_t", "buf" }, { "size_t", "bufsize" }, { "user_addr_t", "fsid" }, { "uint64_t", "objid" }, { "uint32_t", "options" } } },
+  { 218, "openat_dprotected_np", 7, { { "int", "fd" }, { "char *", "path" }, { "int", "flags" }, { "int", "class" }, { "int", "dpflags" }, { "int", "mode" }, { "int", "authfd" } } },
+  { 220, "getattrlist", 5, { { "const char *", "path" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "u_long", "options" } } },
+  { 221, "setattrlist", 5, { { "const char *", "path" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "u_long", "options" } } },
+  { 222, "getdirentriesattr", 8, { { "int", "fd" }, { "struct attrlist *", "alist" }, { "void *", "buffer" }, { "size_t", "buffersize" }, { "u_long *", "count" }, { "u_long *", "basep" }, { "u_long *", "newstate" }, { "u_long", "options" } } },
+  { 223, "exchangedata", 3, { { "const char *", "path1" }, { "const char *", "path2" }, { "u_long", "options" } } },
+  { 225, "searchfs", 6, { { "const char *", "path" }, { "struct fssearchblock *", "searchblock" }, { "uint32_t *", "nummatches" }, { "uint32_t", "scriptcode" }, { "uint32_t", "options" }, { "struct searchstate *", "state" } } },
+  { 226, "delete", 1, { { "char *", "path" } } },
+  { 227, "copyfile", 4, { { "char *", "from" }, { "char *", "to" }, { "int", "mode" }, { "int", "flags" } } },
+  { 228, "fgetattrlist", 5, { { "int", "fd" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "u_long", "options" } } },
+  { 229, "fsetattrlist", 5, { { "int", "fd" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "u_long", "options" } } },
+  { 230, "poll", 3, { { "struct pollfd *", "fds" }, { "u_int", "nfds" }, { "int", "timeout" } } },
+  { 234, "getxattr", 6, { { "char *", "path" }, { "char *", "attrname" }, { "user_addr_t", "value" }, { "size_t", "size" }, { "uint32_t", "position" }, { "int", "options" } } },
+  { 235, "fgetxattr", 6, { { "int", "fd" }, { "char *", "attrname" }, { "user_addr_t", "value" }, { "size_t", "size" }, { "uint32_t", "position" }, { "int", "options" } } },
+  { 236, "setxattr", 6, { { "char *", "path" }, { "char *", "attrname" }, { "user_addr_t", "value" }, { "size_t", "size" }, { "uint32_t", "position" }, { "int", "options" } } },
+  { 237, "fsetxattr", 6, { { "int", "fd" }, { "char *", "attrname" }, { "user_addr_t", "value" }, { "size_t", "size" }, { "uint32_t", "position" }, { "int", "options" } } },
+  { 238, "removexattr", 3, { { "char *", "path" }, { "char *", "attrname" }, { "int", "options" } } },
+  { 239, "fremovexattr", 3, { { "int", "fd" }, { "char *", "attrname" }, { "int", "options" } } },
+  { 240, "listxattr", 4, { { "char *", "path" }, { "user_addr_t", "namebuf" }, { "size_t", "bufsize" }, { "int", "options" } } },
+  { 241, "flistxattr", 4, { { "int", "fd" }, { "user_addr_t", "namebuf" }, { "size_t", "bufsize" }, { "int", "options" } } },
+  { 242, "fsctl", 4, { { "const char *", "path" }, { "u_long", "cmd" }, { "caddr_t", "data" }, { "u_int", "options" } } },
+  { 243, "initgroups", 3, { { "u_int", "gidsetsize" }, { "gid_t *", "gidset" }, { "int", "gmuid" } } },
+  { 244, "posix_spawn", 5, { { "pid_t *", "pid" }, { "const char *", "path" }, { "const struct _posix_spawn_args_desc *", "adesc" }, { "char **", "argv" }, { "char **", "envp" } } },
+  { 245, "ffsctl", 4, { { "int", "fd" }, { "u_long", "cmd" }, { "caddr_t", "data" }, { "u_int", "options" } } },
+  { 248, "fhopen", 2, { { "const struct fhandle *", "u_fhp" }, { "int", "flags" } } },
+  { 250, "minherit", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "inherit" } } },
+  { 251, "semsys", 5, { { "u_int", "which" }, { "int", "a2" }, { "int", "a3" }, { "int", "a4" }, { "int", "a5" } } },
+  { 252, "msgsys", 5, { { "u_int", "which" }, { "int", "a2" }, { "int", "a3" }, { "int", "a4" }, { "int", "a5" } } },
+  { 253, "shmsys", 4, { { "u_int", "which" }, { "int", "a2" }, { "int", "a3" }, { "int", "a4" } } },
+  { 254, "semctl", 4, { { "int", "semid" }, { "int", "semnum" }, { "int", "cmd" }, { "semun_t", "arg" } } },
+  { 255, "semget", 3, { { "key_t", "key" }, { "int", "nsems" }, { "int", "semflg" } } },
+  { 256, "semop", 3, { { "int", "semid" }, { "struct sembuf *", "sops" }, { "int", "nsops" } } },
+  { 258, "msgctl", 3, { { "int", "msqid" }, { "int", "cmd" }, { "struct msqid_ds *", "buf" } } },
+  { 259, "msgget", 2, { { "key_t", "key" }, { "int", "msgflg" } } },
+  { 260, "msgsnd", 4, { { "int", "msqid" }, { "void *", "msgp" }, { "size_t", "msgsz" }, { "int", "msgflg" } } },
+  { 261, "msgrcv", 5, { { "int", "msqid" }, { "void *", "msgp" }, { "size_t", "msgsz" }, { "long", "msgtyp" }, { "int", "msgflg" } } },
+  { 262, "shmat", 3, { { "int", "shmid" }, { "void *", "shmaddr" }, { "int", "shmflg" } } },
+  { 263, "shmctl", 3, { { "int", "shmid" }, { "int", "cmd" }, { "struct shmid_ds *", "buf" } } },
+  { 264, "shmdt", 1, { { "void *", "shmaddr" } } },
+  { 265, "shmget", 3, { { "key_t", "key" }, { "size_t", "size" }, { "int", "shmflg" } } },
+  { 266, "shm_open", 3, { { "const char *", "name" }, { "int", "oflag" }, { "int", "mode" } } },
+  { 267, "shm_unlink", 1, { { "const char *", "name" } } },
+  { 268, "sem_open", 4, { { "const char *", "name" }, { "int", "oflag" }, { "int", "mode" }, { "int", "value" } } },
+  { 269, "sem_close", 1, { { "sem_t *", "sem" } } },
+  { 270, "sem_unlink", 1, { { "const char *", "name" } } },
+  { 271, "sem_wait", 1, { { "sem_t *", "sem" } } },
+  { 272, "sem_trywait", 1, { { "sem_t *", "sem" } } },
+  { 273, "sem_post", 1, { { "sem_t *", "sem" } } },
+  { 274, "sysctlbyname", 6, { { "const char *", "name" }, { "size_t", "namelen" }, { "void *", "old" }, { "size_t *", "oldlenp" }, { "void *", "new" }, { "size_t", "newlen" } } },
+  { 277, "open_extended", 6, { { "char *", "path" }, { "int", "flags" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "mode" }, { "user_addr_t", "xsecurity" } } },
+  { 278, "umask_extended", 2, { { "int", "newmask" }, { "user_addr_t", "xsecurity" } } },
+  { 279, "stat_extended", 4, { { "char *", "path" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 280, "lstat_extended", 4, { { "char *", "path" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 281, "fstat_extended", 4, { { "int", "fd" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 282, "chmod_extended", 5, { { "char *", "path" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "mode" }, { "user_addr_t", "xsecurity" } } },
+  { 283, "fchmod_extended", 5, { { "int", "fd" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "mode" }, { "user_addr_t", "xsecurity" } } },
+  { 284, "access_extended", 4, { { "user_addr_t", "entries" }, { "size_t", "size" }, { "user_addr_t", "results" }, { "uid_t", "uid" } } },
+  { 285, "settid", 2, { { "uid_t", "uid" }, { "gid_t", "gid" } } },
+  { 286, "gettid", 2, { { "uid_t *", "uidp" }, { "gid_t *", "gidp" } } },
+  { 287, "setsgroups", 2, { { "int", "setlen" }, { "user_addr_t", "guidset" } } },
+  { 288, "getsgroups", 2, { { "user_addr_t", "setlen" }, { "user_addr_t", "guidset" } } },
+  { 289, "setwgroups", 2, { { "int", "setlen" }, { "user_addr_t", "guidset" } } },
+  { 290, "getwgroups", 2, { { "user_addr_t", "setlen" }, { "user_addr_t", "guidset" } } },
+  { 291, "mkfifo_extended", 5, { { "char *", "path" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "mode" }, { "user_addr_t", "xsecurity" } } },
+  { 292, "mkdir_extended", 5, { { "char *", "path" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "mode" }, { "user_addr_t", "xsecurity" } } },
+  { 293, "identitysvc", 2, { { "int", "opcode" }, { "user_addr_t", "message" } } },
+  { 294, "shared_region_check_np", 1, { { "uint64_t *", "start_address" } } },
+  { 296, "vm_pressure_monitor", 3, { { "int", "wait_for_pressure" }, { "int", "nsecs_monitored" }, { "uint32_t *", "pages_reclaimed" } } },
+  { 297, "psynch_rw_longrdlock", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 298, "psynch_rw_yieldwrlock", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 299, "psynch_rw_downgrade", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 300, "psynch_rw_upgrade", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 301, "psynch_mutexwait", 5, { { "user_addr_t", "mutex" }, { "uint32_t", "mgen" }, { "uint32_t", "ugen" }, { "uint64_t", "tid" }, { "uint32_t", "flags" } } },
+  { 302, "psynch_mutexdrop", 5, { { "user_addr_t", "mutex" }, { "uint32_t", "mgen" }, { "uint32_t", "ugen" }, { "uint64_t", "tid" }, { "uint32_t", "flags" } } },
+  { 303, "psynch_cvbroad", 7, { { "user_addr_t", "cv" }, { "uint64_t", "cvlsgen" }, { "uint64_t", "cvudgen" }, { "uint32_t", "flags" }, { "user_addr_t", "mutex" }, { "uint64_t", "mugen" }, { "uint64_t", "tid" } } },
+  { 304, "psynch_cvsignal", 8, { { "user_addr_t", "cv" }, { "uint64_t", "cvlsgen" }, { "uint32_t", "cvugen" }, { "int", "thread_port" }, { "user_addr_t", "mutex" }, { "uint64_t", "mugen" }, { "uint64_t", "tid" }, { "uint32_t", "flags" } } },
+  { 305, "psynch_cvwait", 8, { { "user_addr_t", "cv" }, { "uint64_t", "cvlsgen" }, { "uint32_t", "cvugen" }, { "user_addr_t", "mutex" }, { "uint64_t", "mugen" }, { "uint32_t", "flags" }, { "int64_t", "sec" }, { "uint32_t", "nsec" } } },
+  { 306, "psynch_rw_rdlock", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 307, "psynch_rw_wrlock", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 308, "psynch_rw_unlock", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 309, "psynch_rw_unlock2", 5, { { "user_addr_t", "rwlock" }, { "uint32_t", "lgenval" }, { "uint32_t", "ugenval" }, { "uint32_t", "rw_wc" }, { "int", "flags" } } },
+  { 310, "getsid", 1, { { "pid_t", "pid" } } },
+  { 311, "settid_with_pid", 2, { { "pid_t", "pid" }, { "int", "assume" } } },
+  { 312, "psynch_cvclrprepost", 7, { { "user_addr_t", "cv" }, { "uint32_t", "cvgen" }, { "uint32_t", "cvugen" }, { "uint32_t", "cvsgen" }, { "uint32_t", "prepocnt" }, { "uint32_t", "preposeq" }, { "uint32_t", "flags" } } },
+  { 313, "aio_fsync", 2, { { "int", "op" }, { "user_addr_t", "aiocbp" } } },
+  { 314, "aio_return", 1, { { "user_addr_t", "aiocbp" } } },
+  { 315, "aio_suspend", 3, { { "user_addr_t", "aiocblist" }, { "int", "nent" }, { "user_addr_t", "timeoutp" } } },
+  { 316, "aio_cancel", 2, { { "int", "fd" }, { "user_addr_t", "aiocbp" } } },
+  { 317, "aio_error", 1, { { "user_addr_t", "aiocbp" } } },
+  { 318, "aio_read", 1, { { "user_addr_t", "aiocbp" } } },
+  { 319, "aio_write", 1, { { "user_addr_t", "aiocbp" } } },
+  { 320, "lio_listio", 4, { { "int", "mode" }, { "user_addr_t", "aiocblist" }, { "int", "nent" }, { "user_addr_t", "sigp" } } },
+  { 322, "iopolicysys", 2, { { "int", "cmd" }, { "void *", "arg" } } },
+  { 323, "process_policy", 7, { { "int", "scope" }, { "int", "action" }, { "int", "policy" }, { "int", "policy_subtype" }, { "user_addr_t", "attrp" }, { "pid_t", "target_pid" }, { "uint64_t", "target_threadid" } } },
+  { 324, "mlockall", 1, { { "int", "how" } } },
+  { 325, "munlockall", 1, { { "int", "how" } } },
+  { 327, "issetugid", 0, {} },
+  { 328, "pthread_kill", 2, { { "int", "thread_port" }, { "int", "sig" } } },
+  { 329, "pthread_sigmask", 3, { { "int", "how" }, { "user_addr_t", "set" }, { "user_addr_t", "oset" } } },
+  { 330, "sigwait", 2, { { "user_addr_t", "set" }, { "user_addr_t", "sig" } } },
+  { 331, "disable_threadsignal", 1, { { "int", "value" } } },
+  { 332, "pthread_markcancel", 1, { { "int", "thread_port" } } },
+  { 333, "pthread_canceled", 1, { { "int", "action" } } },
+  { 334, "semwait_signal", 6, { { "int", "cond_sem" }, { "int", "mutex_sem" }, { "int", "timeout" }, { "int", "relative" }, { "int64_t", "tv_sec" }, { "int32_t", "tv_nsec" } } },
+  { 336, "proc_info", 6, { { "int32_t", "callnum" }, { "int32_t", "pid" }, { "uint32_t", "flavor" }, { "uint64_t", "arg" }, { "user_addr_t", "buffer" }, { "int32_t", "buffersize" } } },
+  { 337, "sendfile", 6, { { "int", "fd" }, { "int", "s" }, { "off_t", "offset" }, { "off_t *", "nbytes" }, { "struct sf_hdtr *", "hdtr" }, { "int", "flags" } } },
+  { 338, "stat64", 2, { { "char *", "path" }, { "user_addr_t", "ub" } } },
+  { 339, "fstat64", 2, { { "int", "fd" }, { "user_addr_t", "ub" } } },
+  { 340, "lstat64", 2, { { "char *", "path" }, { "user_addr_t", "ub" } } },
+  { 341, "stat64_extended", 4, { { "char *", "path" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 342, "lstat64_extended", 4, { { "char *", "path" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 343, "fstat64_extended", 4, { { "int", "fd" }, { "user_addr_t", "ub" }, { "user_addr_t", "xsecurity" }, { "user_addr_t", "xsecurity_size" } } },
+  { 344, "getdirentries64", 4, { { "int", "fd" }, { "void *", "buf" }, { "user_size_t", "bufsize" }, { "off_t *", "position" } } },
+  { 345, "statfs64", 2, { { "char *", "path" }, { "struct statfs64 *", "buf" } } },
+  { 346, "fstatfs64", 2, { { "int", "fd" }, { "struct statfs64 *", "buf" } } },
+  { 347, "getfsstat64", 3, { { "user_addr_t", "buf" }, { "int", "bufsize" }, { "int", "flags" } } },
+  { 348, "pthread_chdir", 1, { { "char *", "path" } } },
+  { 349, "pthread_fchdir", 1, { { "int", "fd" } } },
+  { 350, "audit", 2, { { "void *", "record" }, { "int", "length" } } },
+  { 351, "auditon", 3, { { "int", "cmd" }, { "void *", "data" }, { "int", "length" } } },
+  { 353, "getauid", 1, { { "au_id_t *", "auid" } } },
+  { 354, "setauid", 1, { { "au_id_t *", "auid" } } },
+  { 357, "getaudit_addr", 2, { { "struct auditinfo_addr *", "auditinfo_addr" }, { "int", "length" } } },
+  { 358, "setaudit_addr", 2, { { "struct auditinfo_addr *", "auditinfo_addr" }, { "int", "length" } } },
+  { 359, "auditctl", 1, { { "char *", "path" } } },
+  { 360, "bsdthread_create", 5, { { "user_addr_t", "func" }, { "user_addr_t", "func_arg" }, { "user_addr_t", "stack" }, { "user_addr_t", "pthread" }, { "uint32_t", "flags" } } },
+  { 361, "bsdthread_terminate", 4, { { "user_addr_t", "stackaddr" }, { "size_t", "freesize" }, { "uint32_t", "port" }, { "user_addr_t", "sema_or_ulock" } } },
+  { 362, "kqueue", 0, {} },
+  { 363, "kevent", 6, { { "int", "fd" }, { "const struct kevent *", "changelist" }, { "int", "nchanges" }, { "struct kevent *", "eventlist" }, { "int", "nevents" }, { "const struct timespec *", "timeout" } } },
+  { 364, "lchown", 3, { { "char *", "path" }, { "uid_t", "owner" }, { "gid_t", "group" } } },
+  { 366, "bsdthread_register", 7, { { "user_addr_t", "threadstart" }, { "user_addr_t", "wqthread" }, { "uint32_t", "flags" }, { "user_addr_t", "stack_addr_hint" }, { "user_addr_t", "targetconc_ptr" }, { "uint32_t", "dispatchqueue_offset" }, { "uint32_t", "tsd_offset" } } },
+  { 367, "workq_open", 0, {} },
+  { 368, "workq_kernreturn", 4, { { "int", "options" }, { "user_addr_t", "item" }, { "int", "affinity" }, { "int", "prio" } } },
+  { 369, "kevent64", 7, { { "int", "fd" }, { "const struct kevent64_s *", "changelist" }, { "int", "nchanges" }, { "struct kevent64_s *", "eventlist" }, { "int", "nevents" }, { "unsigned int", "flags" }, { "const struct timespec *", "timeout" } } },
+  { 372, "thread_selfid", 0, {} },
+  { 373, "ledger", 4, { { "int", "cmd" }, { "caddr_t", "arg1" }, { "caddr_t", "arg2" }, { "caddr_t", "arg3" } } },
+  { 374, "kevent_qos", 8, { { "int", "fd" }, { "const struct kevent_qos_s *", "changelist" }, { "int", "nchanges" }, { "struct kevent_qos_s *", "eventlist" }, { "int", "nevents" }, { "void *", "data_out" }, { "size_t *", "data_available" }, { "unsigned int", "flags" } } },
+  { 375, "kevent_id", 8, { { "uint64_t", "id" }, { "const struct kevent_qos_s *", "changelist" }, { "int", "nchanges" }, { "struct kevent_qos_s *", "eventlist" }, { "int", "nevents" }, { "void *", "data_out" }, { "size_t *", "data_available" }, { "unsigned int", "flags" } } },
+  { 380, "mac_execve", 4, { { "char *", "fname" }, { "char **", "argp" }, { "char **", "envp" }, { "struct mac *", "mac_p" } } },
+  { 381, "mac_syscall", 3, { { "char *", "policy" }, { "int", "call" }, { "user_addr_t", "arg" } } },
+  { 382, "mac_get_file", 2, { { "char *", "path_p" }, { "struct mac *", "mac_p" } } },
+  { 383, "mac_set_file", 2, { { "char *", "path_p" }, { "struct mac *", "mac_p" } } },
+  { 384, "mac_get_link", 2, { { "char *", "path_p" }, { "struct mac *", "mac_p" } } },
+  { 385, "mac_set_link", 2, { { "char *", "path_p" }, { "struct mac *", "mac_p" } } },
+  { 386, "mac_get_proc", 1, { { "struct mac *", "mac_p" } } },
+  { 387, "mac_set_proc", 1, { { "struct mac *", "mac_p" } } },
+  { 388, "mac_get_fd", 2, { { "int", "fd" }, { "struct mac *", "mac_p" } } },
+  { 389, "mac_set_fd", 2, { { "int", "fd" }, { "struct mac *", "mac_p" } } },
+  { 390, "mac_get_pid", 2, { { "pid_t", "pid" }, { "struct mac *", "mac_p" } } },
+  { 394, "pselect", 6, { { "int", "nd" }, { "u_int32_t *", "in" }, { "u_int32_t *", "ou" }, { "u_int32_t *", "ex" }, { "const struct timespec *", "ts" }, { "const struct sigset_t *", "mask" } } },
+  { 395, "pselect_nocancel", 6, { { "int", "nd" }, { "u_int32_t *", "in" }, { "u_int32_t *", "ou" }, { "u_int32_t *", "ex" }, { "const struct timespec *", "ts" }, { "const struct sigset_t *", "mask" } } },
+  { 396, "read_nocancel", 3, { { "int", "fd" }, { "user_addr_t", "cbuf" }, { "user_size_t", "nbyte" } } },
+  { 397, "write_nocancel", 3, { { "int", "fd" }, { "user_addr_t", "cbuf" }, { "user_size_t", "nbyte" } } },
+  { 398, "open_nocancel", 3, { { "char *", "path" }, { "int", "flags" }, { "int", "mode" } } },
+  { 399, "close_nocancel", 1, { { "int", "fd" } } },
+  { 400, "wait4_nocancel", 4, { { "int", "pid" }, { "user_addr_t", "status" }, { "int", "options" }, { "user_addr_t", "rusage" } } },
+  { 401, "recvmsg_nocancel", 3, { { "int", "s" }, { "struct msghdr *", "msg" }, { "int", "flags" } } },
+  { 402, "sendmsg_nocancel", 3, { { "int", "s" }, { "caddr_t", "msg" }, { "int", "flags" } } },
+  { 403, "recvfrom_nocancel", 6, { { "int", "s" }, { "void *", "buf" }, { "size_t", "len" }, { "int", "flags" }, { "struct sockaddr *", "from" }, { "int *", "fromlenaddr" } } },
+  { 404, "accept_nocancel", 3, { { "int", "s" }, { "caddr_t", "name" }, { "socklen_t *", "anamelen" } } },
+  { 405, "msync_nocancel", 3, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "int", "flags" } } },
+  { 406, "fcntl_nocancel", 3, { { "int", "fd" }, { "int", "cmd" }, { "long", "arg" } } },
+  { 407, "select_nocancel", 5, { { "int", "nd" }, { "u_int32_t *", "in" }, { "u_int32_t *", "ou" }, { "u_int32_t *", "ex" }, { "struct timeval *", "tv" } } },
+  { 408, "fsync_nocancel", 1, { { "int", "fd" } } },
+  { 409, "connect_nocancel", 3, { { "int", "s" }, { "caddr_t", "name" }, { "socklen_t", "namelen" } } },
+  { 410, "sigsuspend_nocancel", 1, { { "sigset_t", "mask" } } },
+  { 411, "readv_nocancel", 3, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "u_int", "iovcnt" } } },
+  { 412, "writev_nocancel", 3, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "u_int", "iovcnt" } } },
+  { 413, "sendto_nocancel", 6, { { "int", "s" }, { "caddr_t", "buf" }, { "size_t", "len" }, { "int", "flags" }, { "caddr_t", "to" }, { "socklen_t", "tolen" } } },
+  { 414, "pread_nocancel", 4, { { "int", "fd" }, { "user_addr_t", "buf" }, { "user_size_t", "nbyte" }, { "off_t", "offset" } } },
+  { 415, "pwrite_nocancel", 4, { { "int", "fd" }, { "user_addr_t", "buf" }, { "user_size_t", "nbyte" }, { "off_t", "offset" } } },
+  { 416, "waitid_nocancel", 4, { { "idtype_t", "idtype" }, { "id_t", "id" }, { "siginfo_t *", "infop" }, { "int", "options" } } },
+  { 417, "poll_nocancel", 3, { { "struct pollfd *", "fds" }, { "u_int", "nfds" }, { "int", "timeout" } } },
+  { 418, "msgsnd_nocancel", 4, { { "int", "msqid" }, { "void *", "msgp" }, { "size_t", "msgsz" }, { "int", "msgflg" } } },
+  { 419, "msgrcv_nocancel", 5, { { "int", "msqid" }, { "void *", "msgp" }, { "size_t", "msgsz" }, { "long", "msgtyp" }, { "int", "msgflg" } } },
+  { 420, "sem_wait_nocancel", 1, { { "sem_t *", "sem" } } },
+  { 421, "aio_suspend_nocancel", 3, { { "user_addr_t", "aiocblist" }, { "int", "nent" }, { "user_addr_t", "timeoutp" } } },
+  { 422, "sigwait_nocancel", 2, { { "user_addr_t", "set" }, { "user_addr_t", "sig" } } },
+  { 423, "semwait_signal_nocancel", 6, { { "int", "cond_sem" }, { "int", "mutex_sem" }, { "int", "timeout" }, { "int", "relative" }, { "int64_t", "tv_sec" }, { "int32_t", "tv_nsec" } } },
+  { 424, "mac_mount", 5, { { "char *", "type" }, { "char *", "path" }, { "int", "flags" }, { "caddr_t", "data" }, { "struct mac *", "mac_p" } } },
+  { 425, "mac_get_mount", 2, { { "char *", "path" }, { "struct mac *", "mac_p" } } },
+  { 426, "mac_getfsstat", 5, { { "user_addr_t", "buf" }, { "int", "bufsize" }, { "user_addr_t", "mac" }, { "int", "macsize" }, { "int", "flags" } } },
+  { 427, "fsgetpath", 4, { { "user_addr_t", "buf" }, { "size_t", "bufsize" }, { "user_addr_t", "fsid" }, { "uint64_t", "objid" } } },
+  { 428, "audit_session_self", 0, {} },
+  { 429, "audit_session_join", 1, { { "mach_port_name_t", "port" } } },
+  { 430, "fileport_makeport", 2, { { "int", "fd" }, { "user_addr_t", "portnamep" } } },
+  { 431, "fileport_makefd", 1, { { "mach_port_name_t", "port" } } },
+  { 432, "audit_session_port", 2, { { "au_asid_t", "asid" }, { "user_addr_t", "portnamep" } } },
+  { 433, "pid_suspend", 1, { { "int", "pid" } } },
+  { 434, "pid_resume", 1, { { "int", "pid" } } },
+  { 435, "pid_hibernate", 1, { { "int", "pid" } } },
+  { 436, "pid_shutdown_sockets", 2, { { "int", "pid" }, { "int", "level" } } },
+  { 439, "kas_info", 3, { { "int", "selector" }, { "void *", "value" }, { "size_t *", "size" } } },
+  { 440, "memorystatus_control", 5, { { "uint32_t", "command" }, { "int32_t", "pid" }, { "uint32_t", "flags" }, { "user_addr_t", "buffer" }, { "size_t", "buffersize" } } },
+  { 441, "guarded_open_np", 5, { { "char *", "path" }, { "const guardid_t *", "guard" }, { "u_int", "guardflags" }, { "int", "flags" }, { "int", "mode" } } },
+  { 442, "guarded_close_np", 2, { { "int", "fd" }, { "const guardid_t *", "guard" } } },
+  { 443, "guarded_kqueue_np", 2, { { "const guardid_t *", "guard" }, { "u_int", "guardflags" } } },
+  { 444, "change_fdguard_np", 6, { { "int", "fd" }, { "const guardid_t *", "guard" }, { "u_int", "guardflags" }, { "const guardid_t *", "nguard" }, { "u_int", "nguardflags" }, { "int *", "fdflagsp" } } },
+  { 445, "usrctl", 1, { { "uint32_t", "flags" } } },
+  { 446, "proc_rlimit_control", 3, { { "pid_t", "pid" }, { "int", "flavor" }, { "void *", "arg" } } },
+  { 447, "connectx", 8, { { "int", "socket" }, { "const sa_endpoints_t *", "endpoints" }, { "sae_associd_t", "associd" }, { "unsigned int", "flags" }, { "const struct iovec *", "iov" }, { "unsigned int", "iovcnt" }, { "size_t *", "len" }, { "sae_connid_t *", "connid" } } },
+  { 448, "disconnectx", 3, { { "int", "s" }, { "sae_associd_t", "aid" }, { "sae_connid_t", "cid" } } },
+  { 449, "peeloff", 2, { { "int", "s" }, { "sae_associd_t", "aid" } } },
+  { 450, "socket_delegate", 4, { { "int", "domain" }, { "int", "type" }, { "int", "protocol" }, { "pid_t", "epid" } } },
+  { 451, "telemetry", 6, { { "uint64_t", "cmd" }, { "uint64_t", "deadline" }, { "uint64_t", "interval" }, { "uint64_t", "leeway" }, { "uint64_t", "arg4" }, { "uint64_t", "arg5" } } },
+  { 452, "proc_uuid_policy", 4, { { "uint32_t", "operation" }, { "uuid_t", "uuid" }, { "size_t", "uuidlen" }, { "uint32_t", "flags" } } },
+  { 453, "memorystatus_get_level", 1, { { "user_addr_t", "level" } } },
+  { 454, "system_override", 2, { { "uint64_t", "timeout" }, { "uint64_t", "flags" } } },
+  { 455, "vfs_purge", 0, {} },
+  { 456, "sfi_ctl", 4, { { "uint32_t", "operation" }, { "uint32_t", "sfi_class" }, { "uint64_t", "time" }, { "uint64_t *", "out_time" } } },
+  { 457, "sfi_pidctl", 4, { { "uint32_t", "operation" }, { "pid_t", "pid" }, { "uint32_t", "sfi_flags" }, { "uint32_t *", "out_sfi_flags" } } },
+  { 458, "coalition", 3, { { "uint32_t", "operation" }, { "uint64_t *", "cid" }, { "uint32_t", "flags" } } },
+  { 459, "coalition_info", 4, { { "uint32_t", "flavor" }, { "uint64_t *", "cid" }, { "void *", "buffer" }, { "size_t *", "bufsize" } } },
+  { 460, "necp_match_policy", 3, { { "uint8_t *", "parameters" }, { "size_t", "parameters_size" }, { "struct necp_aggregate_result *", "returned_result" } } },
+  { 461, "getattrlistbulk", 5, { { "int", "dirfd" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "uint64_t", "options" } } },
+  { 462, "clonefileat", 5, { { "int", "src_dirfd" }, { "user_addr_t", "src" }, { "int", "dst_dirfd" }, { "user_addr_t", "dst" }, { "uint32_t", "flags" } } },
+  { 463, "openat", 4, { { "int", "fd" }, { "char *", "path" }, { "int", "flags" }, { "int", "mode" } } },
+  { 464, "openat_nocancel", 4, { { "int", "fd" }, { "char *", "path" }, { "int", "flags" }, { "int", "mode" } } },
+  { 465, "renameat", 4, { { "int", "fromfd" }, { "char *", "from" }, { "int", "tofd" }, { "char *", "to" } } },
+  { 466, "faccessat", 4, { { "int", "fd" }, { "char *", "path" }, { "int", "amode" }, { "int", "flag" } } },
+  { 467, "fchmodat", 4, { { "int", "fd" }, { "char *", "path" }, { "int", "mode" }, { "int", "flag" } } },
+  { 468, "fchownat", 5, { { "int", "fd" }, { "char *", "path" }, { "uid_t", "uid" }, { "gid_t", "gid" }, { "int", "flag" } } },
+  { 469, "fstatat", 4, { { "int", "fd" }, { "char *", "path" }, { "user_addr_t", "ub" }, { "int", "flag" } } },
+  { 470, "fstatat64", 4, { { "int", "fd" }, { "char *", "path" }, { "user_addr_t", "ub" }, { "int", "flag" } } },
+  { 471, "linkat", 5, { { "int", "fd1" }, { "char *", "path" }, { "int", "fd2" }, { "char *", "link" }, { "int", "flag" } } },
+  { 472, "unlinkat", 3, { { "int", "fd" }, { "char *", "path" }, { "int", "flag" } } },
+  { 473, "readlinkat", 4, { { "int", "fd" }, { "char *", "path" }, { "user_addr_t", "buf" }, { "size_t", "bufsize" } } },
+  { 474, "symlinkat", 3, { { "user_addr_t *", "path1" }, { "int", "fd" }, { "user_addr_t", "path2" } } },
+  { 475, "mkdirat", 3, { { "int", "fd" }, { "char *", "path" }, { "int", "mode" } } },
+  { 476, "getattrlistat", 6, { { "int", "fd" }, { "const char *", "path" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "u_long", "options" } } },
+  { 477, "proc_trace_log", 2, { { "pid_t", "pid" }, { "uint64_t", "uniqueid" } } },
+  { 478, "bsdthread_ctl", 4, { { "user_addr_t", "cmd" }, { "user_addr_t", "arg1" }, { "user_addr_t", "arg2" }, { "user_addr_t", "arg3" } } },
+  { 479, "openbyid_np", 3, { { "user_addr_t", "fsid" }, { "user_addr_t", "objid" }, { "int", "oflags" } } },
+  { 480, "recvmsg_x", 4, { { "int", "s" }, { "struct msghdr_x *", "msgp" }, { "u_int", "cnt" }, { "int", "flags" } } },
+  { 481, "sendmsg_x", 4, { { "int", "s" }, { "struct msghdr_x *", "msgp" }, { "u_int", "cnt" }, { "int", "flags" } } },
+  { 482, "thread_selfusage", 0, {} },
+  { 483, "csrctl", 3, { { "uint32_t", "op" }, { "user_addr_t", "useraddr" }, { "user_addr_t", "usersize" } } },
+  { 484, "guarded_open_dprotected_np", 7, { { "char *", "path" }, { "const guardid_t *", "guard" }, { "u_int", "guardflags" }, { "int", "flags" }, { "int", "dpclass" }, { "int", "dpflags" }, { "int", "mode" } } },
+  { 485, "guarded_write_np", 4, { { "int", "fd" }, { "const guardid_t *", "guard" }, { "user_addr_t", "cbuf" }, { "user_size_t", "nbyte" } } },
+  { 486, "guarded_pwrite_np", 5, { { "int", "fd" }, { "const guardid_t *", "guard" }, { "user_addr_t", "buf" }, { "user_size_t", "nbyte" }, { "off_t", "offset" } } },
+  { 487, "guarded_writev_np", 4, { { "int", "fd" }, { "const guardid_t *", "guard" }, { "struct iovec *", "iovp" }, { "int", "iovcnt" } } },
+  { 488, "renameatx_np", 5, { { "int", "fromfd" }, { "char *", "from" }, { "int", "tofd" }, { "char *", "to" }, { "u_int", "flags" } } },
+  { 489, "mremap_encrypted", 5, { { "caddr_ut", "addr" }, { "size_ut", "len" }, { "uint32_t", "cryptid" }, { "uint32_t", "cputype" }, { "uint32_t", "cpusubtype" } } },
+  { 490, "netagent_trigger", 2, { { "uuid_t", "agent_uuid" }, { "size_t", "agent_uuidlen" } } },
+  { 491, "stack_snapshot_with_config", 3, { { "int", "stackshot_config_version" }, { "user_addr_t", "stackshot_config" }, { "size_t", "stackshot_config_size" } } },
+  { 492, "microstackshot", 3, { { "user_addr_t", "tracebuf" }, { "uint32_t", "tracebuf_size" }, { "uint32_t", "flags" } } },
+  { 493, "grab_pgo_data", 4, { { "user_addr_t", "uuid" }, { "int", "flags" }, { "user_addr_t", "buffer" }, { "user_ssize_t", "size" } } },
+  { 494, "persona", 6, { { "uint32_t", "operation" }, { "uint32_t", "flags" }, { "struct kpersona_info *", "info" }, { "uid_t *", "id" }, { "size_t *", "idlen" }, { "char *", "path" } } },
+  { 496, "mach_eventlink_signal", 2, { { "mach_port_name_t", "eventlink_port" }, { "uint64_t", "signal_count" } } },
+  { 497, "mach_eventlink_wait_until", 5, { { "mach_port_name_t", "eventlink_port" }, { "uint64_t", "wait_count" }, { "uint64_t", "deadline" }, { "uint32_t", "clock_id" }, { "uint32_t", "option" } } },
+  { 498, "mach_eventlink_signal_wait_until", 6, { { "mach_port_name_t", "eventlink_port" }, { "uint64_t", "wait_count" }, { "uint64_t", "signal_count" }, { "uint64_t", "deadline" }, { "uint32_t", "clock_id" }, { "uint32_t", "option" } } },
+  { 499, "work_interval_ctl", 4, { { "uint32_t", "operation" }, { "uint64_t", "work_interval_id" }, { "void *", "arg" }, { "size_t", "len" } } },
+  { 500, "getentropy", 2, { { "void *", "buffer" }, { "size_t", "size" } } },
+  { 502, "necp_client_action", 6, { { "int", "necp_fd" }, { "uint32_t", "action" }, { "uuid_t", "client_id" }, { "size_t", "client_id_len" }, { "uint8_t *", "buffer" }, { "size_t", "buffer_size" } } },
+  { 503, "nexus_open", 2, { { "struct nxctl_init *", "init" }, { "uint32_t", "init_len" } } },
+  { 504, "nexus_register", 5, { { "int", "ctl" }, { "struct nxprov_reg *", "reg" }, { "uint32_t", "reg_len" }, { "uuid_t *", "prov_uuid" }, { "uint32_t", "prov_uuid_len" } } },
+  { 505, "nexus_deregister", 3, { { "int", "ctl" }, { "uuid_t", "prov_uuid" }, { "uint32_t", "prov_uuid_len" } } },
+  { 506, "nexus_create", 5, { { "int", "ctl" }, { "uuid_t", "prov_uuid" }, { "uint32_t", "prov_uuid_len" }, { "uuid_t *", "nx_uuid" }, { "uint32_t", "nx_uuid_len" } } },
+  { 507, "nexus_destroy", 3, { { "int", "ctl" }, { "uuid_t", "nx_uuid" }, { "uint32_t", "nx_uuid_len" } } },
+  { 508, "nexus_get_opt", 4, { { "int", "ctl" }, { "uint32_t", "opt" }, { "void *", "aoptval" }, { "uint32_t *", "aoptlen" } } },
+  { 509, "nexus_set_opt", 4, { { "int", "ctl" }, { "uint32_t", "opt" }, { "const void *", "aoptval" }, { "uint32_t", "optlen" } } },
+  { 510, "channel_open", 2, { { "struct ch_init *", "init" }, { "uint32_t", "init_len" } } },
+  { 511, "channel_get_info", 3, { { "int", "c" }, { "struct ch_info *", "cinfo" }, { "uint32_t", "cinfolen" } } },
+  { 512, "channel_sync", 3, { { "int", "c" }, { "int", "mode" }, { "int", "flags" } } },
+  { 513, "channel_get_opt", 4, { { "int", "c" }, { "uint32_t", "opt" }, { "void *", "aoptval" }, { "uint32_t *", "aoptlen" } } },
+  { 514, "channel_set_opt", 4, { { "int", "c" }, { "uint32_t", "opt" }, { "const void *", "aoptval" }, { "uint32_t", "optlen" } } },
+  { 515, "ulock_wait", 4, { { "uint32_t", "operation" }, { "void *", "addr" }, { "uint64_t", "value" }, { "uint32_t", "timeout" } } },
+  { 516, "ulock_wake", 3, { { "uint32_t", "operation" }, { "void *", "addr" }, { "uint64_t", "wake_value" } } },
+  { 517, "fclonefileat", 4, { { "int", "src_fd" }, { "int", "dst_dirfd" }, { "user_addr_t", "dst" }, { "uint32_t", "flags" } } },
+  { 518, "fs_snapshot", 6, { { "uint32_t", "op" }, { "int", "dirfd" }, { "user_addr_t", "name1" }, { "user_addr_t", "name2" }, { "user_addr_t", "data" }, { "uint32_t", "flags" } } },
+  { 520, "terminate_with_payload", 7, { { "int", "pid" }, { "uint32_t", "reason_namespace" }, { "uint64_t", "reason_code" }, { "void *", "payload" }, { "uint32_t", "payload_size" }, { "const char *", "reason_string" }, { "uint64_t", "reason_flags" } } },
+  { 521, "abort_with_payload", 6, { { "uint32_t", "reason_namespace" }, { "uint64_t", "reason_code" }, { "void *", "payload" }, { "uint32_t", "payload_size" }, { "const char *", "reason_string" }, { "uint64_t", "reason_flags" } } },
+  { 523, "necp_session_action", 6, { { "int", "necp_fd" }, { "uint32_t", "action" }, { "uint8_t *", "in_buffer" }, { "size_t", "in_buffer_length" }, { "uint8_t *", "out_buffer" }, { "size_t", "out_buffer_length" } } },
+  { 524, "setattrlistat", 6, { { "int", "fd" }, { "const char *", "path" }, { "struct attrlist *", "alist" }, { "void *", "attribute_buffer" }, { "size_t", "buffer_size" }, { "uint32_t", "options" } } },
+  { 525, "net_qos_guideline", 2, { { "struct net_qos_param *", "param" }, { "uint32_t", "param_len" } } },
+  { 526, "fmount", 4, { { "const char *", "type" }, { "int", "fd" }, { "int", "flags" }, { "void *", "data" } } },
+  { 527, "ntp_adjtime", 1, { { "struct timex *", "tp" } } },
+  { 528, "ntp_gettime", 1, { { "struct ntptimeval *", "ntvp" } } },
+  { 529, "os_fault_with_payload", 6, { { "uint32_t", "reason_namespace" }, { "uint64_t", "reason_code" }, { "void *", "payload" }, { "uint32_t", "payload_size" }, { "const char *", "reason_string" }, { "uint64_t", "reason_flags" } } },
+  { 530, "kqueue_workloop_ctl", 4, { { "user_addr_t", "cmd" }, { "uint64_t", "options" }, { "user_addr_t", "addr" }, { "size_t", "sz" } } },
+  { 531, "mach_bridge_remote_time", 1, { { "uint64_t", "local_timestamp" } } },
+  { 532, "coalition_ledger", 4, { { "uint32_t", "operation" }, { "uint64_t *", "cid" }, { "void *", "buffer" }, { "size_t *", "bufsize" } } },
+  { 533, "log_data", 4, { { "unsigned int", "tag" }, { "unsigned int", "flags" }, { "void *", "buffer" }, { "unsigned int", "size" } } },
+  { 534, "memorystatus_available_memory", 0, {} },
+  { 535, "objc_bp_assist_cfg_np", 2, { { "uint64_t", "adr" }, { "uint64_t", "ctl" } } },
+  { 536, "shared_region_map_and_slide_2_np", 4, { { "uint32_t", "files_count" }, { "const struct shared_file_np *", "files" }, { "uint32_t", "mappings_count" }, { "const shared_file_mapping_slide_np_ut *", "mappings_u" } } },
+  { 537, "pivot_root", 2, { { "const char *", "new_rootfs_path_before" }, { "const char *", "old_rootfs_path_after" } } },
+  { 538, "task_inspect_for_pid", 3, { { "mach_port_name_t", "target_tport" }, { "int", "pid" }, { "mach_port_name_t *", "t" } } },
+  { 539, "task_read_for_pid", 3, { { "mach_port_name_t", "target_tport" }, { "int", "pid" }, { "mach_port_name_t *", "t" } } },
+  { 540, "preadv", 4, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "int", "iovcnt" }, { "off_t", "offset" } } },
+  { 541, "pwritev", 4, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "int", "iovcnt" }, { "off_t", "offset" } } },
+  { 542, "preadv_nocancel", 4, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "int", "iovcnt" }, { "off_t", "offset" } } },
+  { 543, "pwritev_nocancel", 4, { { "int", "fd" }, { "struct iovec *", "iovp" }, { "int", "iovcnt" }, { "off_t", "offset" } } },
+  { 544, "ulock_wait2", 5, { { "uint32_t", "operation" }, { "void *", "addr" }, { "uint64_t", "value" }, { "uint64_t", "timeout" }, { "uint64_t", "value2" } } },
+  { 545, "proc_info_extended_id", 8, { { "int32_t", "callnum" }, { "int32_t", "pid" }, { "uint32_t", "flavor" }, { "uint32_t", "flags" }, { "uint64_t", "ext_id" }, { "uint64_t", "arg" }, { "user_addr_t", "buffer" }, { "int32_t", "buffersize" } } },
+  { 546, "tracker_action", 3, { { "int", "action" }, { "char *", "buffer" }, { "size_t", "buffer_size" } } },
+  { 547, "debug_syscall_reject", 1, { { "uint64_t", "packed_selectors" } } },
+  { 548, "debug_syscall_reject_config", 3, { { "uint64_t", "packed_selectors1" }, { "uint64_t", "packed_selectors2" }, { "uint64_t", "flags" } } },
+  { 549, "graftdmg", 4, { { "int", "dmg_fd" }, { "const char *", "mountdir" }, { "uint32_t", "graft_type" }, { "graftdmg_args_un *", "gda" } } },
+  { 550, "map_with_linking_np", 4, { { "void *", "regions" }, { "uint32_t", "region_count" }, { "void *", "link_info" }, { "uint32_t", "link_info_size" } } },
+  { 551, "freadlink", 3, { { "int", "fd" }, { "user_addr_t", "buf" }, { "user_size_t", "bufsize" } } },
+  { 552, "record_system_event", 4, { { "uint32_t", "type" }, { "uint32_t", "subsystem" }, { "const char *", "event" }, { "const char *", "payload" } } },
+  { 553, "mkfifoat", 3, { { "int", "fd" }, { "char *", "path" }, { "int", "mode" } } },
+  { 554, "mknodat", 4, { { "int", "fd" }, { "char *", "path" }, { "int", "mode" }, { "int", "dev" } } },
+  { 555, "ungraftdmg", 2, { { "const char *", "mountdir" }, { "uint64_t", "flags" } } },
+  { 556, "coalition_policy_set", 3, { { "uint64_t", "cid" }, { "uint32_t", "flavor" }, { "uint32_t", "value" } } },
+  { 557, "coalition_policy_get", 2, { { "uint64_t", "cid" }, { "uint32_t", "flavor" } } },
+};
+
+FridaXnuSyscallSignature *
+frida_get_xnu_mach_traps (int * len)
+{
+  if (len != NULL)
+    *len = G_N_ELEMENTS (frida_xnu_mach_traps);
+  return (FridaXnuSyscallSignature *) frida_xnu_mach_traps;
+}
+
+FridaXnuSyscallSignature *
+frida_get_xnu_bsd_syscalls (int * len)
+{
+  if (len != NULL)
+    *len = G_N_ELEMENTS (frida_xnu_bsd_syscalls);
+  return (FridaXnuSyscallSignature *) frida_xnu_bsd_syscalls;
+}

lib/base/xnu-syscalls/xnu-syscalls.vala

@@ -0,0 +1,539 @@
+// AUTO-GENERATED FILE. DO NOT EDIT.
+
+namespace Frida {
+	public extern unowned XnuSyscallSignature[] get_xnu_mach_traps ();
+	public extern unowned XnuSyscallSignature[] get_xnu_bsd_syscalls ();
+
+	public struct XnuSyscallSignature {
+		public int nr;
+		public string name;
+		public uint8 nargs;
+		public XnuSyscallArg args[9];
+	}
+
+	public struct XnuSyscallArg {
+		public string? type;
+		public string? name;
+	}
+
+	public enum XnuMachTrap {
+		MACH_VM_ALLOCATE = -10,
+		MACH_VM_PURGABLE_CONTROL = -11,
+		MACH_VM_DEALLOCATE = -12,
+		TASK_DYLD_PROCESS_INFO_NOTIFY_GET = -13,
+		MACH_VM_PROTECT = -14,
+		MACH_VM_MAP = -15,
+		MACH_PORT_ALLOCATE = -16,
+		MACH_PORT_DEALLOCATE = -18,
+		MACH_PORT_MOD_REFS = -19,
+		MACH_PORT_MOVE_MEMBER = -20,
+		MACH_PORT_INSERT_RIGHT = -21,
+		MACH_PORT_INSERT_MEMBER = -22,
+		MACH_PORT_EXTRACT_MEMBER = -23,
+		MACH_PORT_CONSTRUCT = -24,
+		MACH_PORT_DESTRUCT = -25,
+		MACH_REPLY_PORT = -26,
+		THREAD_SELF = -27,
+		TASK_SELF = -28,
+		HOST_SELF = -29,
+		MACH_MSG = -31,
+		MACH_MSG_OVERWRITE = -32,
+		SEMAPHORE_SIGNAL = -33,
+		SEMAPHORE_SIGNAL_ALL = -34,
+		SEMAPHORE_SIGNAL_THREAD = -35,
+		SEMAPHORE_WAIT = -36,
+		SEMAPHORE_WAIT_SIGNAL = -37,
+		SEMAPHORE_TIMEDWAIT = -38,
+		SEMAPHORE_TIMEDWAIT_SIGNAL = -39,
+		MACH_PORT_GET_ATTRIBUTES = -40,
+		MACH_PORT_GUARD = -41,
+		MACH_PORT_UNGUARD = -42,
+		MACH_GENERATE_ACTIVITY_ID = -43,
+		TASK_NAME_FOR_PID = -44,
+		TASK_FOR_PID = -45,
+		PID_FOR_TASK = -46,
+		MACH_MSG2 = -47,
+		MACX_SWAPON = -48,
+		MACX_SWAPOFF = -49,
+		THREAD_GET_SPECIAL_REPLY_PORT = -50,
+		MACX_TRIGGERS = -51,
+		MACX_BACKING_STORE_SUSPEND = -52,
+		MACX_BACKING_STORE_RECOVERY = -53,
+		PFZ_EXIT = -58,
+		SWTCH_PRI = -59,
+		SWTCH = -60,
+		THREAD_SWITCH = -61,
+		CLOCK_SLEEP = -62,
+		MACH_VM_RECLAIM_UPDATE_KERNEL_ACCOUNTING = -63,
+		HOST_CREATE_MACH_VOUCHER = -70,
+		MACH_VOUCHER_EXTRACT_ATTR_RECIPE = -72,
+		MACH_PORT_TYPE = -76,
+		MACH_PORT_REQUEST_NOTIFICATION = -77,
+		EXCLAVES_CTL = -88,
+		MACH_TIMEBASE_INFO = -89,
+		MACH_WAIT_UNTIL = -90,
+		MK_TIMER_CREATE = -91,
+		MK_TIMER_DESTROY = -92,
+		MK_TIMER_ARM = -93,
+		MK_TIMER_CANCEL = -94,
+		MK_TIMER_ARM_LEEWAY = -95,
+		DEBUG_CONTROL_PORT_FOR_PID = -96,
+		IOKIT_USER_CLIENT = -100,
+	}
+
+	public enum XnuBsdSyscall {
+		EXIT = 1,
+		FORK = 2,
+		READ = 3,
+		WRITE = 4,
+		OPEN = 5,
+		CLOSE = 6,
+		WAIT4 = 7,
+		LINK = 9,
+		UNLINK = 10,
+		CHDIR = 12,
+		FCHDIR = 13,
+		MKNOD = 14,
+		CHMOD = 15,
+		CHOWN = 16,
+		GETFSSTAT = 18,
+		GETPID = 20,
+		SETUID = 23,
+		GETUID = 24,
+		GETEUID = 25,
+		PTRACE = 26,
+		RECVMSG = 27,
+		SENDMSG = 28,
+		RECVFROM = 29,
+		ACCEPT = 30,
+		GETPEERNAME = 31,
+		GETSOCKNAME = 32,
+		ACCESS = 33,
+		CHFLAGS = 34,
+		FCHFLAGS = 35,
+		SYNC = 36,
+		KILL = 37,
+		CROSSARCH_TRAP = 38,
+		GETPPID = 39,
+		DUP = 41,
+		PIPE = 42,
+		GETEGID = 43,
+		SIGACTION = 46,
+		GETGID = 47,
+		SIGPROCMASK = 48,
+		GETLOGIN = 49,
+		SETLOGIN = 50,
+		ACCT = 51,
+		SIGPENDING = 52,
+		SIGALTSTACK = 53,
+		IOCTL = 54,
+		REBOOT = 55,
+		REVOKE = 56,
+		SYMLINK = 57,
+		READLINK = 58,
+		EXECVE = 59,
+		UMASK = 60,
+		CHROOT = 61,
+		MSYNC = 65,
+		VFORK = 66,
+		OSLOG_COPROC_REG = 67,
+		OSLOG_COPROC = 68,
+		MUNMAP = 73,
+		MPROTECT = 74,
+		MADVISE = 75,
+		MINCORE = 78,
+		GETGROUPS = 79,
+		SETGROUPS = 80,
+		GETPGRP = 81,
+		SETPGID = 82,
+		SETITIMER = 83,
+		SWAPON = 85,
+		GETITIMER = 86,
+		GETDTABLESIZE = 89,
+		DUP2 = 90,
+		FCNTL = 92,
+		SELECT = 93,
+		FSYNC = 95,
+		SETPRIORITY = 96,
+		SOCKET = 97,
+		CONNECT = 98,
+		GETPRIORITY = 100,
+		BIND = 104,
+		SETSOCKOPT = 105,
+		LISTEN = 106,
+		SIGSUSPEND = 111,
+		GETTIMEOFDAY = 116,
+		GETRUSAGE = 117,
+		GETSOCKOPT = 118,
+		READV = 120,
+		WRITEV = 121,
+		SETTIMEOFDAY = 122,
+		FCHOWN = 123,
+		FCHMOD = 124,
+		SETREUID = 126,
+		SETREGID = 127,
+		RENAME = 128,
+		FLOCK = 131,
+		MKFIFO = 132,
+		SENDTO = 133,
+		SHUTDOWN = 134,
+		SOCKETPAIR = 135,
+		MKDIR = 136,
+		RMDIR = 137,
+		UTIMES = 138,
+		FUTIMES = 139,
+		ADJTIME = 140,
+		GETHOSTUUID = 142,
+		SETSID = 147,
+		GETPGID = 151,
+		SETPRIVEXEC = 152,
+		PREAD = 153,
+		PWRITE = 154,
+		NFSSVC = 155,
+		STATFS = 157,
+		FSTATFS = 158,
+		UNMOUNT = 159,
+		GETFH = 161,
+		FUNMOUNT = 164,
+		QUOTACTL = 165,
+		MOUNT = 167,
+		CSOPS = 169,
+		CSOPS_AUDITTOKEN = 170,
+		WAITID = 173,
+		KDEBUG_TYPEFILTER = 177,
+		KDEBUG_TRACE_STRING = 178,
+		KDEBUG_TRACE64 = 179,
+		KDEBUG_TRACE = 180,
+		SETGID = 181,
+		SETEGID = 182,
+		SETEUID = 183,
+		SIGRETURN = 184,
+		PANIC_WITH_DATA = 185,
+		THREAD_SELFCOUNTS = 186,
+		FDATASYNC = 187,
+		STAT = 188,
+		FSTAT = 189,
+		LSTAT = 190,
+		PATHCONF = 191,
+		FPATHCONF = 192,
+		GETRLIMIT = 194,
+		SETRLIMIT = 195,
+		GETDIRENTRIES = 196,
+		MMAP = 197,
+		LSEEK = 199,
+		TRUNCATE = 200,
+		FTRUNCATE = 201,
+		SYSCTL = 202,
+		MLOCK = 203,
+		MUNLOCK = 204,
+		UNDELETE = 205,
+		OPEN_DPROTECTED_NP = 216,
+		FSGETPATH_EXT = 217,
+		OPENAT_DPROTECTED_NP = 218,
+		GETATTRLIST = 220,
+		SETATTRLIST = 221,
+		GETDIRENTRIESATTR = 222,
+		EXCHANGEDATA = 223,
+		SEARCHFS = 225,
+		DELETE = 226,
+		COPYFILE = 227,
+		FGETATTRLIST = 228,
+		FSETATTRLIST = 229,
+		POLL = 230,
+		GETXATTR = 234,
+		FGETXATTR = 235,
+		SETXATTR = 236,
+		FSETXATTR = 237,
+		REMOVEXATTR = 238,
+		FREMOVEXATTR = 239,
+		LISTXATTR = 240,
+		FLISTXATTR = 241,
+		FSCTL = 242,
+		INITGROUPS = 243,
+		POSIX_SPAWN = 244,
+		FFSCTL = 245,
+		FHOPEN = 248,
+		MINHERIT = 250,
+		SEMSYS = 251,
+		MSGSYS = 252,
+		SHMSYS = 253,
+		SEMCTL = 254,
+		SEMGET = 255,
+		SEMOP = 256,
+		MSGCTL = 258,
+		MSGGET = 259,
+		MSGSND = 260,
+		MSGRCV = 261,
+		SHMAT = 262,
+		SHMCTL = 263,
+		SHMDT = 264,
+		SHMGET = 265,
+		SHM_OPEN = 266,
+		SHM_UNLINK = 267,
+		SEM_OPEN = 268,
+		SEM_CLOSE = 269,
+		SEM_UNLINK = 270,
+		SEM_WAIT = 271,
+		SEM_TRYWAIT = 272,
+		SEM_POST = 273,
+		SYSCTLBYNAME = 274,
+		OPEN_EXTENDED = 277,
+		UMASK_EXTENDED = 278,
+		STAT_EXTENDED = 279,
+		LSTAT_EXTENDED = 280,
+		FSTAT_EXTENDED = 281,
+		CHMOD_EXTENDED = 282,
+		FCHMOD_EXTENDED = 283,
+		ACCESS_EXTENDED = 284,
+		SETTID = 285,
+		GETTID = 286,
+		SETSGROUPS = 287,
+		GETSGROUPS = 288,
+		SETWGROUPS = 289,
+		GETWGROUPS = 290,
+		MKFIFO_EXTENDED = 291,
+		MKDIR_EXTENDED = 292,
+		IDENTITYSVC = 293,
+		SHARED_REGION_CHECK_NP = 294,
+		VM_PRESSURE_MONITOR = 296,
+		PSYNCH_RW_LONGRDLOCK = 297,
+		PSYNCH_RW_YIELDWRLOCK = 298,
+		PSYNCH_RW_DOWNGRADE = 299,
+		PSYNCH_RW_UPGRADE = 300,
+		PSYNCH_MUTEXWAIT = 301,
+		PSYNCH_MUTEXDROP = 302,
+		PSYNCH_CVBROAD = 303,
+		PSYNCH_CVSIGNAL = 304,
+		PSYNCH_CVWAIT = 305,
+		PSYNCH_RW_RDLOCK = 306,
+		PSYNCH_RW_WRLOCK = 307,
+		PSYNCH_RW_UNLOCK = 308,
+		PSYNCH_RW_UNLOCK2 = 309,
+		GETSID = 310,
+		SETTID_WITH_PID = 311,
+		PSYNCH_CVCLRPREPOST = 312,
+		AIO_FSYNC = 313,
+		AIO_RETURN = 314,
+		AIO_SUSPEND = 315,
+		AIO_CANCEL = 316,
+		AIO_ERROR = 317,
+		AIO_READ = 318,
+		AIO_WRITE = 319,
+		LIO_LISTIO = 320,
+		IOPOLICYSYS = 322,
+		PROCESS_POLICY = 323,
+		MLOCKALL = 324,
+		MUNLOCKALL = 325,
+		ISSETUGID = 327,
+		PTHREAD_KILL = 328,
+		PTHREAD_SIGMASK = 329,
+		SIGWAIT = 330,
+		DISABLE_THREADSIGNAL = 331,
+		PTHREAD_MARKCANCEL = 332,
+		PTHREAD_CANCELED = 333,
+		SEMWAIT_SIGNAL = 334,
+		PROC_INFO = 336,
+		SENDFILE = 337,
+		STAT64 = 338,
+		FSTAT64 = 339,
+		LSTAT64 = 340,
+		STAT64_EXTENDED = 341,
+		LSTAT64_EXTENDED = 342,
+		FSTAT64_EXTENDED = 343,
+		GETDIRENTRIES64 = 344,
+		STATFS64 = 345,
+		FSTATFS64 = 346,
+		GETFSSTAT64 = 347,
+		PTHREAD_CHDIR = 348,
+		PTHREAD_FCHDIR = 349,
+		AUDIT = 350,
+		AUDITON = 351,
+		GETAUID = 353,
+		SETAUID = 354,
+		GETAUDIT_ADDR = 357,
+		SETAUDIT_ADDR = 358,
+		AUDITCTL = 359,
+		BSDTHREAD_CREATE = 360,
+		BSDTHREAD_TERMINATE = 361,
+		KQUEUE = 362,
+		KEVENT = 363,
+		LCHOWN = 364,
+		BSDTHREAD_REGISTER = 366,
+		WORKQ_OPEN = 367,
+		WORKQ_KERNRETURN = 368,
+		KEVENT64 = 369,
+		THREAD_SELFID = 372,
+		LEDGER = 373,
+		KEVENT_QOS = 374,
+		KEVENT_ID = 375,
+		MAC_EXECVE = 380,
+		MAC_SYSCALL = 381,
+		MAC_GET_FILE = 382,
+		MAC_SET_FILE = 383,
+		MAC_GET_LINK = 384,
+		MAC_SET_LINK = 385,
+		MAC_GET_PROC = 386,
+		MAC_SET_PROC = 387,
+		MAC_GET_FD = 388,
+		MAC_SET_FD = 389,
+		MAC_GET_PID = 390,
+		PSELECT = 394,
+		PSELECT_NOCANCEL = 395,
+		READ_NOCANCEL = 396,
+		WRITE_NOCANCEL = 397,
+		OPEN_NOCANCEL = 398,
+		CLOSE_NOCANCEL = 399,
+		WAIT4_NOCANCEL = 400,
+		RECVMSG_NOCANCEL = 401,
+		SENDMSG_NOCANCEL = 402,
+		RECVFROM_NOCANCEL = 403,
+		ACCEPT_NOCANCEL = 404,
+		MSYNC_NOCANCEL = 405,
+		FCNTL_NOCANCEL = 406,
+		SELECT_NOCANCEL = 407,
+		FSYNC_NOCANCEL = 408,
+		CONNECT_NOCANCEL = 409,
+		SIGSUSPEND_NOCANCEL = 410,
+		READV_NOCANCEL = 411,
+		WRITEV_NOCANCEL = 412,
+		SENDTO_NOCANCEL = 413,
+		PREAD_NOCANCEL = 414,
+		PWRITE_NOCANCEL = 415,
+		WAITID_NOCANCEL = 416,
+		POLL_NOCANCEL = 417,
+		MSGSND_NOCANCEL = 418,
+		MSGRCV_NOCANCEL = 419,
+		SEM_WAIT_NOCANCEL = 420,
+		AIO_SUSPEND_NOCANCEL = 421,
+		SIGWAIT_NOCANCEL = 422,
+		SEMWAIT_SIGNAL_NOCANCEL = 423,
+		MAC_MOUNT = 424,
+		MAC_GET_MOUNT = 425,
+		MAC_GETFSSTAT = 426,
+		FSGETPATH = 427,
+		AUDIT_SESSION_SELF = 428,
+		AUDIT_SESSION_JOIN = 429,
+		FILEPORT_MAKEPORT = 430,
+		FILEPORT_MAKEFD = 431,
+		AUDIT_SESSION_PORT = 432,
+		PID_SUSPEND = 433,
+		PID_RESUME = 434,
+		PID_HIBERNATE = 435,
+		PID_SHUTDOWN_SOCKETS = 436,
+		KAS_INFO = 439,
+		MEMORYSTATUS_CONTROL = 440,
+		GUARDED_OPEN_NP = 441,
+		GUARDED_CLOSE_NP = 442,
+		GUARDED_KQUEUE_NP = 443,
+		CHANGE_FDGUARD_NP = 444,
+		USRCTL = 445,
+		PROC_RLIMIT_CONTROL = 446,
+		CONNECTX = 447,
+		DISCONNECTX = 448,
+		PEELOFF = 449,
+		SOCKET_DELEGATE = 450,
+		TELEMETRY = 451,
+		PROC_UUID_POLICY = 452,
+		MEMORYSTATUS_GET_LEVEL = 453,
+		SYSTEM_OVERRIDE = 454,
+		VFS_PURGE = 455,
+		SFI_CTL = 456,
+		SFI_PIDCTL = 457,
+		COALITION = 458,
+		COALITION_INFO = 459,
+		NECP_MATCH_POLICY = 460,
+		GETATTRLISTBULK = 461,
+		CLONEFILEAT = 462,
+		OPENAT = 463,
+		OPENAT_NOCANCEL = 464,
+		RENAMEAT = 465,
+		FACCESSAT = 466,
+		FCHMODAT = 467,
+		FCHOWNAT = 468,
+		FSTATAT = 469,
+		FSTATAT64 = 470,
+		LINKAT = 471,
+		UNLINKAT = 472,
+		READLINKAT = 473,
+		SYMLINKAT = 474,
+		MKDIRAT = 475,
+		GETATTRLISTAT = 476,
+		PROC_TRACE_LOG = 477,
+		BSDTHREAD_CTL = 478,
+		OPENBYID_NP = 479,
+		RECVMSG_X = 480,
+		SENDMSG_X = 481,
+		THREAD_SELFUSAGE = 482,
+		CSRCTL = 483,
+		GUARDED_OPEN_DPROTECTED_NP = 484,
+		GUARDED_WRITE_NP = 485,
+		GUARDED_PWRITE_NP = 486,
+		GUARDED_WRITEV_NP = 487,
+		RENAMEATX_NP = 488,
+		MREMAP_ENCRYPTED = 489,
+		NETAGENT_TRIGGER = 490,
+		STACK_SNAPSHOT_WITH_CONFIG = 491,
+		MICROSTACKSHOT = 492,
+		GRAB_PGO_DATA = 493,
+		PERSONA = 494,
+		MACH_EVENTLINK_SIGNAL = 496,
+		MACH_EVENTLINK_WAIT_UNTIL = 497,
+		MACH_EVENTLINK_SIGNAL_WAIT_UNTIL = 498,
+		WORK_INTERVAL_CTL = 499,
+		GETENTROPY = 500,
+		NECP_CLIENT_ACTION = 502,
+		NEXUS_OPEN = 503,
+		NEXUS_REGISTER = 504,
+		NEXUS_DEREGISTER = 505,
+		NEXUS_CREATE = 506,
+		NEXUS_DESTROY = 507,
+		NEXUS_GET_OPT = 508,
+		NEXUS_SET_OPT = 509,
+		CHANNEL_OPEN = 510,
+		CHANNEL_GET_INFO = 511,
+		CHANNEL_SYNC = 512,
+		CHANNEL_GET_OPT = 513,
+		CHANNEL_SET_OPT = 514,
+		ULOCK_WAIT = 515,
+		ULOCK_WAKE = 516,
+		FCLONEFILEAT = 517,
+		FS_SNAPSHOT = 518,
+		TERMINATE_WITH_PAYLOAD = 520,
+		ABORT_WITH_PAYLOAD = 521,
+		NECP_SESSION_ACTION = 523,
+		SETATTRLISTAT = 524,
+		NET_QOS_GUIDELINE = 525,
+		FMOUNT = 526,
+		NTP_ADJTIME = 527,
+		NTP_GETTIME = 528,
+		OS_FAULT_WITH_PAYLOAD = 529,
+		KQUEUE_WORKLOOP_CTL = 530,
+		MACH_BRIDGE_REMOTE_TIME = 531,
+		COALITION_LEDGER = 532,
+		LOG_DATA = 533,
+		MEMORYSTATUS_AVAILABLE_MEMORY = 534,
+		OBJC_BP_ASSIST_CFG_NP = 535,
+		SHARED_REGION_MAP_AND_SLIDE_2_NP = 536,
+		PIVOT_ROOT = 537,
+		TASK_INSPECT_FOR_PID = 538,
+		TASK_READ_FOR_PID = 539,
+		PREADV = 540,
+		PWRITEV = 541,
+		PREADV_NOCANCEL = 542,
+		PWRITEV_NOCANCEL = 543,
+		ULOCK_WAIT2 = 544,
+		PROC_INFO_EXTENDED_ID = 545,
+		TRACKER_ACTION = 546,
+		DEBUG_SYSCALL_REJECT = 547,
+		DEBUG_SYSCALL_REJECT_CONFIG = 548,
+		GRAFTDMG = 549,
+		MAP_WITH_LINKING_NP = 550,
+		FREADLINK = 551,
+		RECORD_SYSTEM_EVENT = 552,
+		MKFIFOAT = 553,
+		MKNODAT = 554,
+		UNGRAFTDMG = 555,
+		COALITION_POLICY_SET = 556,
+		COALITION_POLICY_GET = 557,
+	}
+}

lib/gadget/frida-gadget-glibc.version

@@ -0,0 +1,11 @@
+FRIDA_1.0 {
+  local:
+    *;
+};
+
+GLIBC_2.2.5 {
+  local:
+    fopen*;
+    fseeko*;
+    ftello*;
+} FRIDA_1.0;

lib/gadget/gadget-glue.c

@@ -118,6 +118,8 @@ frida_gadget_environment_deinit (void)
 
   g_assert (worker_loop != NULL);
 
+  frida_libc_shim_prepare_to_deinit ();
+
   source = g_idle_source_new ();
   g_source_set_priority (source, G_PRIORITY_LOW);
   g_source_set_callback (source, stop_worker_loop, NULL, NULL);

lib/gadget/meson.build

@@ -45,7 +45,7 @@ elif host_os_family == 'darwin'
   extra_link_args += '-Wl,-exported_symbols_list,' + meson.current_source_dir() / symlist
   extra_link_depends += symlist
 else
-  symscript = 'frida-gadget.version'
+  symscript = (libc == 'glibc') ? 'frida-gadget-glibc.version' : 'frida-gadget.version'
   extra_link_args += '-Wl,--version-script,' + meson.current_source_dir() / symscript
   extra_link_depends += symscript
 endif

lib/payload/libc-shim.c

@@ -10,6 +10,7 @@
 # include <assert.h>
 # include <fcntl.h>
 # include <unistd.h>
+# include <wchar.h>
 #endif
 #if defined (HAVE_DARWIN)
 # include <sys/attr.h>
@@ -23,23 +24,50 @@
 # include <xlocale.h>
 #endif
 
+#undef __srget
 #undef feof
 #undef ferror
+#undef fgetwc
+#undef fopen
+#undef fopen64
+#undef fputwc
+#undef fseek
+#undef fseeko
+#undef fseeko64
+#undef ftell
+#undef ftello
+#undef ftello64
 #undef getc
 #undef getc_unlocked
+#undef getwc
 #undef memcpy
+#undef putc
 #undef putchar
+#undef putwc
+#undef setbuf
+#undef setbuffer
+#undef setlinebuf
 #undef snprintf
 #undef sprintf
 #undef stderr
 #undef stdin
 #undef stdout
+#undef ungetc
+#undef ungetwc
 #undef vsnprintf
 
 #ifdef HAVE_MUSL
 # define FRIDA_STDIO_OPAQUE_FILE 1
 #endif
 
+static gboolean frida_deinit_expected = FALSE;
+
+void
+frida_libc_shim_prepare_to_deinit (void)
+{
+  frida_deinit_expected = TRUE;
+}
+
 #if defined (HAVE_WINDOWS) || defined (HAVE_ASAN)
 
 void
@@ -70,6 +98,9 @@ __attribute__ ((destructor)) static
 void
 frida_libc_shim_deinit (void)
 {
+  if (!frida_deinit_expected)
+    return;
+
 # ifdef HAVE_ASAN
   gum_deinit ();
 # else
@@ -134,16 +165,18 @@ struct _FridaFile
   int err;
 
   guint8 * rbuf;
+  gboolean owns_rbuf;
   size_t rcap;
   size_t rpos;
   size_t rlen;
 
   guint8 * wbuf;
+  gboolean owns_wbuf;
   size_t wcap;
   size_t wlen;
 
-  int ungot;
-  gboolean has_ungot;
+  guint8 ungot_buf[8];
+  guint ungot_len;
 };
 
 struct _FridaFileHandle
@@ -171,6 +204,10 @@ struct _FridaDir
 
 #endif
 
+static FILE * frida_fopen_impl (const char * pathname, const char * mode);
+static int frida_fseek_impl (FILE * stream, off_t offset, int whence);
+static off_t frida_ftell_impl (FILE * stream);
+
 static void frida_stdio_register_stream (FILE * stream);
 static void frida_stdio_unregister_stream (FILE * stream);
 #ifdef HAVE_FRIDA_DIR
@@ -193,6 +230,8 @@ static void frida_parse_fopen_mode (const char * mode, int * oflags);
 
 static int frida_write_formatted_to_fd (int fd, const char * format, va_list args);
 
+static gboolean frida_utf8_expected_len (guint8 first, guint * out_len);
+
 #ifdef HAVE_FRIDA_DIR
 static FridaDir * frida_dir_get_impl (DIR * dirp);
 static DIR * frida_dir_wrap (FridaDir * impl);
@@ -317,6 +356,9 @@ frida_libc_shim_deinit (void)
 
   fflush (NULL);
 
+  if (!frida_deinit_expected)
+    return;
+
   G_LOCK (frida_stdio);
 
   g_hash_table_iter_init (&iter, frida_streams);
@@ -639,8 +681,34 @@ asprintf_l (char ** ret, locale_t loc, const char * format, ...)
 
 #endif
 
+#ifdef HAVE_GLIBC
+
+G_GNUC_INTERNAL FILE *
+frida_fopen_glibc_225 (const char * pathname, const char * mode)
+{
+  return frida_fopen_impl (pathname, mode);
+}
+__asm__ (".symver frida_fopen_glibc_225,fopen@@GLIBC_2.2.5");
+
+G_GNUC_INTERNAL FILE *
+frida_fopen64_glibc_225 (const char * pathname, const char * mode)
+{
+  return frida_fopen_impl (pathname, mode);
+}
+__asm__ (".symver frida_fopen64_glibc_225,fopen64@@GLIBC_2.2.5");
+
+#else
+
 G_GNUC_INTERNAL FILE *
 fopen (const char * pathname, const char * mode)
+{
+  return frida_fopen_impl (pathname, mode);
+}
+
+#endif
+
+static FILE *
+frida_fopen_impl (const char * pathname, const char * mode)
 {
   FILE * result;
   int oflags, fd;
@@ -714,8 +782,17 @@ setvbuf (FILE * stream, char * buf, int mode, size_t size)
 
   if (mode == _IONBF)
   {
-    g_clear_pointer (&f->rbuf, g_free);
-    g_clear_pointer (&f->wbuf, g_free);
+    if (f->owns_rbuf)
+      g_clear_pointer (&f->rbuf, g_free);
+    else
+      f->rbuf = NULL;
+    f->owns_rbuf = FALSE;
+
+    if (f->owns_wbuf)
+      g_clear_pointer (&f->wbuf, g_free);
+    else
+      f->wbuf = NULL;
+    f->owns_wbuf = FALSE;
 
     f->rcap = 0;
     f->wcap = 0;
@@ -727,13 +804,40 @@ setvbuf (FILE * stream, char * buf, int mode, size_t size)
   }
 
   if (size == 0)
-    size = FRIDA_STDIO_BUFSIZE;
+    size = BUFSIZ;
+
+  if (!f->owns_rbuf)
+  {
+    f->rbuf = NULL;
+    f->rcap = 0;
+  }
 
   f->rbuf = g_realloc (f->rbuf, size);
-  f->wbuf = g_realloc (f->wbuf, size);
-
+  f->owns_rbuf = TRUE;
   f->rcap = size;
-  f->wcap = size;
+
+  if (buf != NULL)
+  {
+    if (f->owns_wbuf)
+      g_clear_pointer (&f->wbuf, g_free);
+
+    f->wbuf = (guint8 *) buf;
+    f->owns_wbuf = FALSE;
+    f->wcap = size;
+  }
+  else
+  {
+    if (!f->owns_wbuf)
+    {
+      f->wbuf = NULL;
+      f->wcap = 0;
+    }
+
+    f->wbuf = g_realloc (f->wbuf, size);
+    f->owns_wbuf = TRUE;
+    f->wcap = size;
+  }
+
   f->rpos = 0;
   f->rlen = 0;
   f->wlen = 0;
@@ -741,6 +845,39 @@ setvbuf (FILE * stream, char * buf, int mode, size_t size)
   return 0;
 }
 
+G_GNUC_INTERNAL void
+setbuf (FILE * stream, char * buf)
+{
+  if (buf == NULL)
+    (void) setvbuf (stream, NULL, _IONBF, 0);
+  else
+    (void) setvbuf (stream, buf, _IOFBF, BUFSIZ);
+}
+
+#if defined (HAVE_DARWIN) || defined (HAVE_ANDROID) || defined (HAVE_FREEBSD)
+G_GNUC_INTERNAL int
+setlinebuf (FILE * stream)
+{
+  return setvbuf (stream, NULL, _IOLBF, 0);
+}
+#else
+G_GNUC_INTERNAL void
+setlinebuf (FILE * stream)
+{
+  setvbuf (stream, NULL, _IOLBF, 0);
+}
+#endif
+
+G_GNUC_INTERNAL void
+#if defined (HAVE_DARWIN) || defined (HAVE_ANDROID) || defined (HAVE_FREEBSD)
+setbuffer (FILE * stream, char * buf, int size)
+#else
+setbuffer (FILE * stream, char * buf, size_t size)
+#endif
+{
+  (void) setvbuf (stream, buf, (buf != NULL) ? _IOFBF : _IONBF, size);
+}
+
 G_GNUC_INTERNAL int
 fflush (FILE * stream)
 {
@@ -801,11 +938,8 @@ getc_unlocked (FILE * stream)
 
   f = frida_file_get_impl (stream);
 
-  if (f->has_ungot)
-  {
-    f->has_ungot = FALSE;
-    return f->ungot;
-  }
+  if (f->ungot_len != 0)
+    return f->ungot_buf[--f->ungot_len];
 
   if (f->buf_mode == _IONBF)
   {
@@ -846,6 +980,64 @@ getc (FILE * stream)
   return getc_unlocked (stream);
 }
 
+G_GNUC_INTERNAL int
+__srget (FILE * stream)
+{
+  return getc_unlocked (stream);
+}
+
+G_GNUC_INTERNAL wint_t
+getwc (FILE * stream)
+{
+  return fgetwc (stream);
+}
+
+G_GNUC_INTERNAL wint_t
+fgetwc (FILE * stream)
+{
+  char bytes[4];
+  guint need, have;
+  int c;
+  gunichar ch;
+
+  c = getc_unlocked (stream);
+  if (c == EOF)
+    return WEOF;
+
+  bytes[0] = c;
+
+  if (!frida_utf8_expected_len (bytes[0], &need))
+  {
+    errno = EILSEQ;
+    frida_file_get_impl (stream)->err = errno;
+    return WEOF;
+  }
+
+  have = 1;
+  while (have != need)
+  {
+    c = getc_unlocked (stream);
+    if (c == EOF)
+    {
+      errno = EILSEQ;
+      frida_file_get_impl (stream)->err = errno;
+      return WEOF;
+    }
+
+    bytes[have++] = c;
+  }
+
+  ch = g_utf8_get_char_validated (bytes, (gssize) need);
+  if (ch == (gunichar) -1 || ch == (gunichar) -2)
+  {
+    errno = EILSEQ;
+    frida_file_get_impl (stream)->err = errno;
+    return WEOF;
+  }
+
+  return (wint_t) ch;
+}
+
 G_GNUC_INTERNAL int
 ungetc (int c, FILE * stream)
 {
@@ -856,16 +1048,46 @@ ungetc (int c, FILE * stream)
   if (c == EOF)
     return EOF;
 
-  if (f->has_ungot)
+  if (f->ungot_len == G_N_ELEMENTS (f->ungot_buf))
     return EOF;
 
-  f->ungot = c;
-  f->has_ungot = TRUE;
+  f->ungot_buf[f->ungot_len++] = c;
   f->eof = FALSE;
 
   return c;
 }
 
+G_GNUC_INTERNAL wint_t
+ungetwc (wint_t wc, FILE * stream)
+{
+  FridaFile * f;
+  char tmp[4];
+  int len;
+  int i;
+
+  if (wc == WEOF)
+    return WEOF;
+
+  f = frida_file_get_impl (stream);
+
+  len = g_unichar_to_utf8 ((gunichar) wc, tmp);
+  if (len <= 0 || len > 4)
+  {
+    errno = EILSEQ;
+    f->err = errno;
+    return WEOF;
+  }
+
+  if (f->ungot_len + len > G_N_ELEMENTS (f->ungot_buf))
+    return WEOF;
+
+  for (i = 0; i != len; i++)
+    f->ungot_buf[f->ungot_len++] = tmp[i];
+
+  f->eof = FALSE;
+  return wc;
+}
+
 G_GNUC_INTERNAL size_t
 fread (void * ptr, size_t size, size_t nmemb, FILE * stream)
 {
@@ -884,10 +1106,9 @@ fread (void * ptr, size_t size, size_t nmemb, FILE * stream)
 
   while (got != want)
   {
-    if (f->has_ungot)
+    if (f->ungot_len != 0)
     {
-      out[got++] = (guint8) f->ungot;
-      f->has_ungot = FALSE;
+      out[got++] = f->ungot_buf[--f->ungot_len];
       continue;
     }
 
@@ -1006,6 +1227,12 @@ fwrite (const void * ptr, size_t size, size_t nmemb, FILE * stream)
   return off / size;
 }
 
+G_GNUC_INTERNAL int
+putc (int c, FILE * stream)
+{
+  return fputc (c, stream);
+}
+
 G_GNUC_INTERNAL int
 fputc (int c, FILE * stream)
 {
@@ -1019,6 +1246,37 @@ fputc (int c, FILE * stream)
   return ch;
 }
 
+G_GNUC_INTERNAL wint_t
+putwc (wchar_t wc, FILE * stream)
+{
+  return fputwc (wc, stream);
+}
+
+G_GNUC_INTERNAL wint_t
+fputwc (wchar_t wc, FILE * stream)
+{
+  char tmp[4];
+  int len;
+  size_t n;
+
+  if (wc == WEOF)
+    return WEOF;
+
+  len = g_unichar_to_utf8 ((gunichar) wc, tmp);
+  if (len <= 0 || len > 4)
+  {
+    errno = EILSEQ;
+    frida_file_get_impl (stream)->err = errno;
+    return WEOF;
+  }
+
+  n = fwrite (tmp, 1, len, stream);
+  if (n != len)
+    return WEOF;
+
+  return (wint_t) wc;
+}
+
 G_GNUC_INTERNAL int
 fputs (const char * s, FILE * stream)
 {
@@ -1062,6 +1320,84 @@ fgets (char * s, int size, FILE * stream)
 
 G_GNUC_INTERNAL int
 fseek (FILE * stream, long offset, int whence)
+{
+  return frida_fseek_impl (stream, (off_t) offset, whence);
+}
+
+G_GNUC_INTERNAL long
+ftell (FILE * stream)
+{
+  off_t pos = frida_ftell_impl (stream);
+  if (pos == (off_t) -1)
+    return -1;
+
+  return (long) pos;
+}
+
+#ifdef HAVE_GLIBC
+
+G_GNUC_INTERNAL int
+frida_fseeko_glibc_225 (FILE * stream, off_t offset, int whence)
+{
+  return frida_fseek_impl (stream, offset, whence);
+}
+__asm__ (".symver frida_fseeko_glibc_225,fseeko@@GLIBC_2.2.5");
+
+G_GNUC_INTERNAL int
+frida_fseeko64_glibc_225 (FILE * stream, off_t offset, int whence)
+{
+  return frida_fseek_impl (stream, offset, whence);
+}
+__asm__ (".symver frida_fseeko64_glibc_225,fseeko64@@GLIBC_2.2.5");
+
+G_GNUC_INTERNAL off_t
+frida_ftello_glibc_225 (FILE * stream)
+{
+  return frida_ftell_impl (stream);
+}
+__asm__ (".symver frida_ftello_glibc_225,ftello@@GLIBC_2.2.5");
+
+G_GNUC_INTERNAL off_t
+frida_ftello64_glibc_225 (FILE * stream)
+{
+  return frida_ftell_impl (stream);
+}
+__asm__ (".symver frida_ftello64_glibc_225,ftello64@@GLIBC_2.2.5");
+
+#else
+
+G_GNUC_INTERNAL int
+fseeko (FILE * stream, off_t offset, int whence)
+{
+  return frida_fseek_impl (stream, offset, whence);
+}
+
+G_GNUC_INTERNAL off_t
+ftello (FILE * stream)
+{
+  return frida_ftell_impl (stream);
+}
+
+# ifndef HAVE_QNX
+
+G_GNUC_INTERNAL int
+fseeko64 (FILE * stream, off_t offset, int whence)
+{
+  return frida_fseek_impl (stream, offset, whence);
+}
+
+G_GNUC_INTERNAL off_t
+ftello64 (FILE * stream)
+{
+  return frida_ftell_impl (stream);
+}
+
+# endif
+
+#endif
+
+static int
+frida_fseek_impl (FILE * stream, off_t offset, int whence)
 {
   FridaFile * f;
   off_t r;
@@ -1073,10 +1409,10 @@ fseek (FILE * stream, long offset, int whence)
 
   f->rpos = 0;
   f->rlen = 0;
-  f->has_ungot = FALSE;
+  f->ungot_len = 0;
   f->eof = FALSE;
 
-  r = frida_lseek_nointr (f->fd, (off_t) offset, whence);
+  r = frida_lseek_nointr (f->fd, offset, whence);
   if (r == (off_t) -1)
   {
     f->err = errno;
@@ -1086,8 +1422,8 @@ fseek (FILE * stream, long offset, int whence)
   return 0;
 }
 
-G_GNUC_INTERNAL long
-ftell (FILE * stream)
+static off_t
+frida_ftell_impl (FILE * stream)
 {
   FridaFile * f;
   off_t pos;
@@ -1104,10 +1440,9 @@ ftell (FILE * stream)
   if (f->buf_mode != _IONBF)
     pos -= (off_t) (f->rlen - f->rpos);
 
-  if (f->has_ungot)
-    pos -= 1;
+  pos -= f->ungot_len;
 
-  return (long) pos;
+  return pos;
 }
 
 G_GNUC_INTERNAL void
@@ -1718,10 +2053,12 @@ frida_file_new (int fd, gboolean close_fd, int buf_mode)
   if (buf_mode != _IONBF)
   {
     f->rcap = FRIDA_STDIO_BUFSIZE;
-    f->wcap = FRIDA_STDIO_BUFSIZE;
-
     f->rbuf = g_malloc (f->rcap);
+    f->owns_rbuf = TRUE;
+
+    f->wcap = FRIDA_STDIO_BUFSIZE;
     f->wbuf = g_malloc (f->wcap);
+    f->owns_wbuf = TRUE;
   }
 
   return f;
@@ -1733,8 +2070,15 @@ frida_file_free (FridaFile * f)
   if (f == NULL)
     return;
 
-  g_clear_pointer (&f->rbuf, g_free);
-  g_clear_pointer (&f->wbuf, g_free);
+  if (f->owns_rbuf)
+    g_clear_pointer (&f->rbuf, g_free);
+  else
+    f->rbuf = NULL;
+
+  if (f->owns_wbuf)
+    g_clear_pointer (&f->wbuf, g_free);
+  else
+    f->wbuf = NULL;
 
   g_free (f);
 }
@@ -1866,6 +2210,36 @@ beach:
   }
 }
 
+static gboolean
+frida_utf8_expected_len (guint8 first, guint * out_len)
+{
+  if (first < 0x80)
+  {
+    *out_len = 1;
+    return TRUE;
+  }
+
+  if ((first & 0xe0) == 0xc0)
+  {
+    *out_len = 2;
+    return TRUE;
+  }
+
+  if ((first & 0xf0) == 0xe0)
+  {
+    *out_len = 3;
+    return TRUE;
+  }
+
+  if ((first & 0xf8) == 0xf0)
+  {
+    *out_len = 4;
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
 #ifdef HAVE_FRIDA_DIR
 
 static FridaDir *

lib/payload/process.vala

@@ -1,4 +1,5 @@
 namespace Frida {
+	public extern void libc_shim_prepare_to_deinit ();
 #if DARWIN
 	public extern void libc_shim_deinit ();
 #endif

meson.build

@@ -302,6 +302,10 @@ if host_os == 'linux'
   endif
   cdata.set('HAVE_' + libc.to_upper(), 1)
   vala_flags += '--define=' + libc.to_upper()
+elif host_os == 'android'
+  libc = 'bionic'
+else
+  libc = 'other'
 endif
 
 if get_option('b_sanitize') == 'address'
@@ -449,6 +453,7 @@ have_barebone_backend = get_option('barebone_backend') \
 compiler_backend_opt = get_option('compiler_backend') \
     .disable_auto_if(host_os == 'watchos')
 have_compiler_backend = false
+compiler_backend_mode = ''
 if compiler_backend_opt.allowed()
   go = find_program('go', native: true, required: false)
   if go.found()
@@ -460,6 +465,8 @@ if compiler_backend_opt.allowed()
         go,
         host_os,
         host_abi,
+        libc,
+        exe_suffix,
         shlib_suffix,
         cc.get_id(),
         '>>>', cc.cmd_array(), '<<<',
@@ -475,11 +482,17 @@ if compiler_backend_opt.allowed()
     if status == 'ok'
       have_compiler_backend = true
       tokens = lines[1].split(' ')
-      go_mode = tokens[0]
+      compiler_backend_mode = tokens[0]
       go_config = tokens[1]
-      compiler_backend_static_compilation = go_mode == 'c-archive'
-      if compiler_backend_static_compilation
-        vala_flags += '--define=COMPILER_BACKEND_STATIC_COMPILATION'
+
+      if compiler_backend_mode == 'c-archive'
+        vala_flags += '--define=COMPILER_BACKEND_EMBEDDED'
+      elif compiler_backend_mode == 'c-shared'
+        vala_flags += '--define=COMPILER_BACKEND_SHARED'
+      elif compiler_backend_mode == 'pie'
+        vala_flags += '--define=COMPILER_BACKEND_EXECUTABLE'
+      else
+        error('Unsupported compiler backend mode: ' + compiler_backend_mode)
       endif
     else
       error_message = lines[1]
@@ -753,6 +766,19 @@ post_process = [
   '@INPUT0@',
 ]
 
+executable_no_exports_link_args = []
+executable_no_exports_link_depends = []
+if host_os_family == 'darwin'
+  script = meson.project_source_root() / 'tools' / 'executable-no-exports.symbols'
+  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') ? '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]
+endif
+
 compile_js_agent = files('tools' / 'compile-js-agent.py')
 
 mapper_opt = get_option('mapper')

portal/frida-portal.symbols

@@ -1 +0,0 @@
-# No exported symbols.

portal/frida-portal.version

@@ -1,9 +0,0 @@
-{
-  global:
-    # FreeBSD needs these two:
-    __progname;
-    environ;
-
-  local:
-    *;
-};

portal/meson.build

@@ -2,18 +2,6 @@ portal_sources = [
   'portal.vala',
 ]
 
-extra_link_args = []
-extra_link_depends = []
-if host_os_family == 'darwin'
-  symlist = 'frida-portal.symbols'
-  extra_link_args += ['-Wl,-exported_symbols_list,' + meson.current_source_dir() / symlist]
-  extra_link_depends += [symlist]
-elif host_os_family != 'windows'
-  symscript = 'frida-portal.version'
-  extra_link_args += ['-Wl,--version-script,' + meson.current_source_dir() / symscript]
-  extra_link_depends += [symscript]
-endif
-
 extra_deps = []
 if tls_provider_dep.found()
   extra_deps += tls_provider_dep
@@ -21,8 +9,8 @@ endif
 
 raw_portal = executable('frida-portal-raw', portal_sources,
   vala_args: [core_vala_args, tls_provider_vala_args, '--pkg=posix'],
-  link_args: extra_link_args,
-  link_depends: extra_link_depends,
+  link_args: executable_no_exports_link_args,
+  link_depends: executable_no_exports_link_depends,
   dependencies: [core_dep] + extra_deps,
 )
 

server/frida-server-freebsd.version

@@ -0,0 +1,11 @@
+{
+  global:
+    # FreeBSD needs these two:
+    __progname;
+    environ;
+    # Allow users to load the server as a shared library with dlopen() and call main() directly
+    main;
+
+  local:
+    *;
+};

server/frida-server.symbols

@@ -1 +1,2 @@
-# No exported symbols.
+# Allow users to load the server as a shared library with dlopen() and call main() directly
+_main

server/frida-server.version

@@ -1,8 +1,5 @@
 {
   global:
-    # FreeBSD needs these two:
-    __progname;
-    environ;
     # Allow users to load the server as a shared library with dlopen() and call main() directly
     main;
 

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 = '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

src/android-helper/Makefile

@@ -11,7 +11,7 @@ helper.dex: build/frida-helper.jar
 		$<
 	mv build/classes.dex $@
 
-build/frida-helper.jar: re/frida/Helper.java
+build/frida-helper.jar: re/frida/Helper.java re/frida/HelperBackend.java
 	javac \
 		-cp .:$(android_jar) \
 		-bootclasspath $(android_jar) \

src/android-helper/client.vala

@@ -1,66 +1,12 @@
 namespace Frida {
-	public sealed class AndroidHelperClient : Object, AsyncInitable {
-		public signal void closed ();
-
-		public IOStream stream {
+	public sealed class AndroidHelperClient : Object {
+		public AndroidHelperTransport transport {
 			get;
 			construct;
 		}
 
-		private BufferedInputStream input;
-		private OutputStream output;
-		private Cancellable io_cancellable = new Cancellable ();
-
-		private State state = CLOSED;
-		private Gee.Queue<Request> pending_requests = new Gee.ArrayQueue<Request> ();
-
-		private ByteArray pending_output = new ByteArray ();
-		private bool writing = false;
-
-		private enum State {
-			CLOSED,
-			OPEN
-		}
-
-		private const uint32 MAX_RESPONSE_SIZE = 100 * 1024 * 1024;
-
-		public AndroidHelperClient (IOStream stream) {
-			Object (stream: stream);
-		}
-
-		construct {
-			input = (BufferedInputStream) Object.new (typeof (BufferedInputStream),
-				"base-stream", stream.get_input_stream (),
-				"close-base-stream", false,
-				"buffer-size", 128 * 1024);
-			output = stream.get_output_stream ();
-
-			state = OPEN;
-
-			process_incoming_responses.begin ();
-		}
-
-		public async void close (Cancellable? cancellable) throws IOError {
-			io_cancellable.cancel ();
-
-			var source = new IdleSource ();
-			source.set_callback (close.callback);
-			source.attach (MainContext.get_thread_default ());
-			yield;
-
-			try {
-				yield stream.close_async (Priority.DEFAULT, cancellable);
-			} catch (IOError e) {
-			}
-
-			ensure_closed ();
-		}
-
-		private void ensure_closed () {
-			if (state == CLOSED)
-				return;
-			state = CLOSED;
-			closed ();
+		public AndroidHelperClient (AndroidHelperTransport transport) {
+			Object (transport: transport);
 		}
 
 		public async HostApplicationInfo get_frontmost_application (FrontmostQueryOptions options,
@@ -72,7 +18,7 @@ namespace Frida {
 				.add_string_value (options.scope.to_nick ())
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			if (response.is_null ())
 				return HostApplicationInfo.empty ();
@@ -127,7 +73,7 @@ namespace Frida {
 				.add_string_value (options.scope.to_nick ())
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			Json.Reader reader = new Json.Reader (response);
 
@@ -193,7 +139,7 @@ namespace Frida {
 				.add_string_value (options.scope.to_nick ())
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			Json.Reader reader = new Json.Reader (response);
 
@@ -247,7 +193,7 @@ namespace Frida {
 				.add_int_value (uid)
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			var r = new Json.Reader (response);
 			parse_envelope_or_throw (r);
@@ -317,7 +263,7 @@ namespace Frida {
 				.add_int_value (uid)
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			var r = new Json.Reader (response);
 			parse_envelope_or_throw (r);
@@ -331,7 +277,7 @@ namespace Frida {
 				.add_int_value ((int) pid)
 				.end_array ();
 
-			Json.Node response = yield request (stanza.get_root (), cancellable);
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
 
 			var r = new Json.Reader (response);
 			parse_envelope_or_throw (r);
@@ -343,6 +289,13 @@ namespace Frida {
 			return r.get_boolean_value ();
 		}
 
+		private async void request_ok (Json.Builder stanza, Cancellable? cancellable) throws Error, IOError {
+			Json.Node response = yield transport.request (stanza.get_root (), cancellable);
+
+			var r = new Json.Reader (response);
+			parse_envelope_or_throw (r);
+		}
+
 		private void parse_envelope_or_throw (Json.Reader r) throws Error {
 			r.read_element (0);
 			string? kind = r.get_string_value ();
@@ -452,6 +405,76 @@ namespace Frida {
 
 			throw new Error.PROTOCOL ("Unexpected JSON type: %s", type.name ());
 		}
+	}
+
+	public interface AndroidHelperTransport : Object {
+		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;
+		}
+
+		private BufferedInputStream input;
+		private OutputStream output;
+		private Cancellable io_cancellable = new Cancellable ();
+
+		private State state = CLOSED;
+		private Gee.Queue<Request> pending_requests = new Gee.ArrayQueue<Request> ();
+
+		private ByteArray pending_output = new ByteArray ();
+		private bool writing = false;
+
+		private enum State {
+			CLOSED,
+			OPEN
+		}
+
+		private const uint32 MAX_RESPONSE_SIZE = 100 * 1024 * 1024;
+
+		public AndroidHelperStreamTransport (IOStream stream) {
+			Object (stream: stream);
+		}
+
+		construct {
+			input = (BufferedInputStream) Object.new (typeof (BufferedInputStream),
+				"base-stream", stream.get_input_stream (),
+				"close-base-stream", false,
+				"buffer-size", 128 * 1024);
+			output = stream.get_output_stream ();
+
+			state = OPEN;
+
+			process_incoming_responses.begin ();
+		}
+
+		public async void close (Cancellable? cancellable) throws IOError {
+			io_cancellable.cancel ();
+
+			var source = new IdleSource ();
+			source.set_callback (close.callback);
+			source.attach (MainContext.get_thread_default ());
+			yield;
+
+			try {
+				yield stream.close_async (Priority.DEFAULT, cancellable);
+			} catch (IOError e) {
+			}
+
+			ensure_closed ();
+		}
+
+		private void ensure_closed () {
+			if (state == CLOSED)
+				return;
+			state = CLOSED;
+			closed ();
+		}
 
 		public async Json.Node request (Json.Node stanza, Cancellable? cancellable) throws Error, IOError {
 			if (state == CLOSED)
@@ -487,13 +510,6 @@ namespace Frida {
 			return r.response;
 		}
 
-		private async void request_ok (Json.Builder stanza, Cancellable? cancellable) throws Error, IOError {
-			Json.Node response = yield request (stanza.get_root (), cancellable);
-
-			var r = new Json.Reader (response);
-			parse_envelope_or_throw (r);
-		}
-
 		private void write_request (Json.Node request) {
 			string request_str = Json.to_string (request, false);
 			uint8[] request_data = request_str.data;

src/api/generate.py

@@ -519,6 +519,8 @@ def function_is_public(name):
                 "check_kernel_version",
                 "get_syscall_signatures",
                 "get_compat32_syscall_signatures",
+                "get_xnu_mach_traps",
+                "get_xnu_bsd_syscalls",
                 "make_stdio_pipes",
                 "make_stdio_pipe",
             }

src/compiler/backend.go

@@ -1,98 +1,11 @@
 package main
 
-/*
-#include <stdint.h>
-
-typedef enum {
-  FRIDA_OUTPUT_UNESCAPED,
-  FRIDA_OUTPUT_HEX_BYTES,
-  FRIDA_OUTPUT_C_STRING,
-} FridaOutputFormat;
-
-typedef enum {
-  FRIDA_BUNDLE_ESM,
-  FRIDA_BUNDLE_IIFE,
-} FridaBundleFormat;
-
-typedef void (* FridaBuildCompleteFunc) (char * bundle, char * error_message, void * user_data);
-typedef void (* FridaWatchReadyFunc) (uintptr_t session_handle, char * error_message, void * user_data);
-typedef void (* FridaStartingFunc) (void * user_data);
-typedef void (* FridaFinishedFunc) (void * user_data);
-typedef void (* FridaOutputFunc) (char * bundle, void * user_data);
-typedef void (* FridaDiagnosticFunc) (char * category, int code, char * path, int line, int character, char * text,
-    void * user_data);
-typedef void (* FridaDestroyFunc) (void * user_data);
-
-static inline void
-invoke_build_complete_func (FridaBuildCompleteFunc fn,
-                            char * bundle,
-                            char * error_message,
-                            void * user_data)
-{
-  fn (bundle, error_message, user_data);
-}
-
-static inline void
-invoke_watch_ready_func (FridaWatchReadyFunc fn,
-                         uintptr_t session_handle,
-                         char * error_message,
-                         void * user_data)
-{
-  fn (session_handle, error_message, user_data);
-}
-
-static inline void
-invoke_starting_func (FridaStartingFunc fn,
-                      void * user_data)
-{
-  fn (user_data);
-}
-
-static inline void
-invoke_finished_func (FridaFinishedFunc fn,
-                      void * user_data)
-{
-  fn (user_data);
-}
-
-static inline void
-invoke_output_func (FridaOutputFunc fn,
-                    char * bundle,
-                    void * user_data)
-{
-  fn (bundle, user_data);
-}
-
-static inline void
-invoke_diagnostic_func (FridaDiagnosticFunc fn,
-                        char * category,
-                        int code,
-                        char * path,
-                        int line,
-                        int character,
-                        char * text,
-                        void * user_data)
-{
-  fn (category, code, path, line, character, text, user_data);
-}
-
-static inline void
-invoke_destroy_func (FridaDestroyFunc fn,
-                     void * user_data)
-{
-  fn (user_data);
-}
-*/
-import "C"
-
 import (
 	"fmt"
 	"path"
 	"path/filepath"
-	"runtime/cgo"
 	"strings"
 	"sync"
-	"unsafe"
 
 	esbuild "github.com/evanw/esbuild/pkg/api"
 	tsscanner "github.com/frida/typescript-go/pkg/scanner"
@@ -110,21 +23,6 @@ type BuildOptions struct {
 	Externals        []string
 }
 
-type OutputFormat C.FridaOutputFormat
-
-const (
-	OutputFormatUnescaped OutputFormat = OutputFormat(C.FRIDA_OUTPUT_UNESCAPED)
-	OutputFormatHexBytes  OutputFormat = OutputFormat(C.FRIDA_OUTPUT_HEX_BYTES)
-	OutputFormatCString   OutputFormat = OutputFormat(C.FRIDA_OUTPUT_C_STRING)
-)
-
-type BundleFormat C.FridaBundleFormat
-
-const (
-	BundleFormatESM  BundleFormat = BundleFormat(C.FRIDA_BUNDLE_ESM)
-	BundleFormatIIFE BundleFormat = BundleFormat(C.FRIDA_BUNDLE_IIFE)
-)
-
 type Diagnostic struct {
 	category        string
 	code            int
@@ -146,153 +44,6 @@ type BuildEndCallback func()
 type BuildOutputCallback func(bundle string)
 type BuildDiagnosticCallback func(d Diagnostic)
 
-//export _frida_compiler_backend_build
-func _frida_compiler_backend_build(cProjectRoot, cEntrypoint *C.char, outputFormat C.FridaOutputFormat, bundleFormat C.FridaBundleFormat,
-	disableTypeCheck, sourceMap, compress uintptr, cPlatform *C.char, cExternals **C.char, numExternals C.int,
-	onCompleteFn C.FridaBuildCompleteFunc, onCompleteData unsafe.Pointer, onCompleteDataDestroy C.FridaDestroyFunc,
-	onDiagnosticFn C.FridaDiagnosticFunc, onDiagnosticData unsafe.Pointer) {
-	options := BuildOptions{
-		ProjectRoot:      C.GoString(cProjectRoot),
-		Entrypoint:       C.GoString(cEntrypoint),
-		OutputFormat:     OutputFormat(outputFormat),
-		BundleFormat:     BundleFormat(bundleFormat),
-		DisableTypeCheck: disableTypeCheck != 0,
-		SourceMap:        sourceMap != 0,
-		Compress:         compress != 0,
-		Platform:         platformFromFrida(C.GoString(cPlatform)),
-		Externals:        parseCExternals(cExternals, numExternals),
-	}
-	onComplete := NewCDelegate(onCompleteFn, onCompleteData, onCompleteDataDestroy)
-	onDiagnostic := NewCDelegate(onDiagnosticFn, onDiagnosticData, nil)
-
-	go func() {
-		defer onComplete.Dispose()
-		defer onDiagnostic.Dispose()
-
-		onDiagnostic := makeCBuildDiagnosticCallback(onDiagnostic)
-
-		bundle, err := build(options, onDiagnostic)
-
-		var cBundle, cErrorMessage *C.char
-		if err == nil {
-			cBundle = C.CString(bundle)
-		} else {
-			cErrorMessage = C.CString(err.Error())
-		}
-		C.invoke_build_complete_func(onComplete.Func, cBundle, cErrorMessage, onComplete.Data)
-	}()
-}
-
-//export _frida_compiler_backend_watch
-func _frida_compiler_backend_watch(cProjectRoot, cEntrypoint *C.char, outputFormat C.FridaOutputFormat, bundleFormat C.FridaBundleFormat,
-	disableTypeCheck, sourceMap, compress uintptr, cPlatform *C.char, cExternals **C.char, numExternals C.int,
-	onReadyFn C.FridaWatchReadyFunc, onReadyData unsafe.Pointer, onReadyDataDestroy C.FridaDestroyFunc,
-	onStartingFn C.FridaStartingFunc, onStartingData unsafe.Pointer,
-	onFinishedFn C.FridaFinishedFunc, onFinishedData unsafe.Pointer,
-	onOutputFn C.FridaOutputFunc, onOutputData unsafe.Pointer,
-	onDiagnosticFn C.FridaDiagnosticFunc, onDiagnosticData unsafe.Pointer) {
-	options := BuildOptions{
-		ProjectRoot:      C.GoString(cProjectRoot),
-		Entrypoint:       C.GoString(cEntrypoint),
-		OutputFormat:     OutputFormat(outputFormat),
-		BundleFormat:     BundleFormat(bundleFormat),
-		DisableTypeCheck: disableTypeCheck != 0,
-		SourceMap:        sourceMap != 0,
-		Compress:         compress != 0,
-		Platform:         platformFromFrida(C.GoString(cPlatform)),
-		Externals:        parseCExternals(cExternals, numExternals),
-	}
-	onReady := NewCDelegate(onReadyFn, onReadyData, onReadyDataDestroy)
-	onStarting := NewCDelegate(onStartingFn, onStartingData, nil)
-	onFinished := NewCDelegate(onFinishedFn, onFinishedData, nil)
-	onOutput := NewCDelegate(onOutputFn, onOutputData, nil)
-	onDiagnostic := NewCDelegate(onDiagnosticFn, onDiagnosticData, nil)
-
-	go func() {
-		defer onReady.Dispose()
-
-		onDispose := func() {
-			onStarting.Dispose()
-			onFinished.Dispose()
-			onOutput.Dispose()
-			onDiagnostic.Dispose()
-		}
-
-		callbacks := BuildEventCallbacks{
-			OnStart: func() {
-				C.invoke_starting_func(onStarting.Func, onStarting.Data)
-			},
-			OnEnd: func() {
-				C.invoke_starting_func(onFinished.Func, onFinished.Data)
-			},
-			OnOutput: func(bundle string) {
-				C.invoke_output_func(onOutput.Func, C.CString(bundle), onOutput.Data)
-			},
-			OnDiagnostic: makeCBuildDiagnosticCallback(onDiagnostic),
-		}
-
-		session, err := NewWatchSession(options, onDispose, callbacks)
-
-		var cSession C.uintptr_t
-		var cErrorMessage *C.char
-		if err == nil {
-			cSession = C.uintptr_t(cgo.NewHandle(session))
-		} else {
-			cErrorMessage = C.CString(err.Error())
-		}
-		C.invoke_watch_ready_func(onReady.Func, cSession, cErrorMessage, onReady.Data)
-	}()
-}
-
-//export _frida_compiler_backend_watch_session_dispose
-func _frida_compiler_backend_watch_session_dispose(h uintptr) {
-	handle := cgo.Handle(h)
-	session := handle.Value().(*WatchSession)
-	session.Dispose()
-	handle.Delete()
-}
-
-func platformFromFrida(s string) esbuild.Platform {
-	switch s {
-	case "gum":
-		return esbuild.PlatformNode
-	case "browser":
-		return esbuild.PlatformBrowser
-	case "neutral":
-		return esbuild.PlatformNeutral
-	default:
-		panic(fmt.Sprintf("Unknown platform: %q", s))
-	}
-}
-
-func parseCExternals(cExternals **C.char, numExternals C.int) []string {
-	if numExternals == 0 {
-		return nil
-	}
-
-	n := int(numExternals)
-	cArray := (*[1 << 20]*C.char)(unsafe.Pointer(cExternals))[:n:n]
-
-	externals := make([]string, n)
-	for i := 0; i < n; i++ {
-		externals[i] = C.GoString(cArray[i])
-	}
-
-	return externals
-}
-
-func makeCBuildDiagnosticCallback(onDiagnostic *CDelegate[C.FridaDiagnosticFunc]) BuildDiagnosticCallback {
-	return func(d Diagnostic) {
-		var cPath *C.char
-		if d.path != "" {
-			cPath = C.CString(d.path)
-		}
-
-		C.invoke_diagnostic_func(onDiagnostic.Func, C.CString(d.category), C.int(d.code), cPath, C.int(d.line),
-			C.int(d.character), C.CString(d.text), onDiagnostic.Data)
-	}
-}
-
 func build(options BuildOptions, onDiagnostic BuildDiagnosticCallback) (bundle string, err error) {
 	callbacks := BuildEventCallbacks{
 		OnOutput: func(b string) {
@@ -828,25 +579,3 @@ func makeTypeScriptPlugin(compiler *TSCompiler) esbuild.Plugin {
 		},
 	}
 }
-
-type CDelegate[F any] struct {
-	Func        F
-	null        F
-	Data        unsafe.Pointer
-	dataDestroy C.FridaDestroyFunc
-}
-
-func NewCDelegate[F any](function F, data unsafe.Pointer, dataDestroy C.FridaDestroyFunc) *CDelegate[F] {
-	return &CDelegate[F]{Func: function, Data: data, dataDestroy: dataDestroy}
-}
-
-func (d *CDelegate[F]) Dispose() {
-	if d.dataDestroy != nil {
-		C.invoke_destroy_func(d.dataDestroy, d.Data)
-	}
-	d.Func = d.null
-	d.Data = nil
-	d.dataDestroy = nil
-}
-
-func main() {}

src/compiler/build-backend.py

@@ -60,11 +60,15 @@ def build_backend(
     mode = config["mode"]
 
     backend_stem = "frida-compiler-backend"
-    if mode == "c-shared":
+    if mode != "c-archive":
         backend_stem += "-raw"
 
-    backend_a = priv_dir / f"{backend_stem}.a"
-    backend_shlib = priv_dir / (f"{backend_stem}" + config["shlib_suffix"])
+    if mode == "c-archive":
+        backend_binary = priv_dir / f"{backend_stem}.a"
+    elif mode == "c-shared":
+        backend_binary = priv_dir / (f"{backend_stem}" + config["shlib_suffix"])
+    else:
+        backend_binary = priv_dir / (f"{backend_stem}" + config["exe_suffix"])
     backend_h = priv_dir / f"{backend_stem}.h"
 
     extra_go_args = config["extra_go_args"].copy()
@@ -78,10 +82,10 @@ def build_backend(
         "build",
         f"-buildmode={mode}",
         "-o",
-        backend_a.name if mode == "c-archive" else backend_shlib.name,
+        backend_binary.name,
         "-buildvcs=false",
         *extra_go_args,
-        *go_sources,
+        ".",
     )
 
     if mode == "c-archive":
@@ -109,7 +113,7 @@ def build_backend(
         )
 
         run(priv_dir / "symbol-replacer" / symbol_replacer_name,
-            backend_a.name, *config["nm"], *config["ranlib"], config["env"]["CC"])
+            backend_binary.name, *config["nm"], *config["ranlib"], config["env"]["CC"])
 
         if (mingw := config.get("mingw")) is not None and (abi := config["abi"]) in {
             "x86",
@@ -143,17 +147,16 @@ def build_backend(
 
             extra_objects = []
             if abi == "x86_64":
-                run(*ar, "x", backend_a.name, "go.o")
+                run(*ar, "x", backend_binary.name, "go.o")
                 sort_pdata_in_object(Path(priv_dir) / "go.o")
                 extra_objects.append("go.o")
 
-            run(*ar, "rs", backend_a.name, *libgcc_objects, *gwex_objects, *extra_objects)
+            run(*ar, "rs", backend_binary.name, *libgcc_objects, *gwex_objects, *extra_objects)
 
-        shutil.copy(priv_dir / backend_a.name, output_dir / backend_a.name)
-    else:
-        shutil.copy(priv_dir / backend_shlib.name, output_dir / backend_shlib.name)
+    shutil.copy(priv_dir / backend_binary.name, output_dir / backend_binary.name)
 
-    shutil.copy(priv_dir / backend_h.name, output_dir / backend_h.name)
+    if mode in {"c-archive", "c-shared"}:
+        shutil.copy(priv_dir / backend_h.name, output_dir / backend_h.name)
 
 
 # Work around the Go toolchain's almost-MSVC-compatible object files

src/compiler/compiler.vala

@@ -47,7 +47,7 @@ namespace Frida {
 				CompilerBackend.build (project_root, entrypoint, opts.output_format, opts.bundle_format,
 					(size_t) (opts.type_check == NONE), (size_t) (opts.source_maps == INCLUDED),
 					(size_t) (opts.compression == TERSER), opts.platform.to_nick (),
-					opts.externals.to_array (), (owned) on_complete, on_diagnostic);
+					opts.externals.to_array (), on_diagnostic, (owned) on_complete);
 				yield;
 
 				if (error_message != null)
@@ -98,8 +98,8 @@ namespace Frida {
 			CompilerBackend.watch (project_root, entrypoint, opts.output_format, opts.bundle_format,
 				(size_t) (opts.type_check == NONE), (size_t) (opts.source_maps == INCLUDED),
 				(size_t) (opts.compression == TERSER), opts.platform.to_nick (),
-				opts.externals.to_array (), (owned) on_ready, on_starting, on_finished,
-				on_output, on_diagnostic);
+				opts.externals.to_array (), on_starting, on_finished, on_output, on_diagnostic,
+				(owned) on_ready);
 			yield;
 
 			if (error_message != null)
@@ -235,12 +235,12 @@ namespace Frida {
 	namespace CompilerBackend {
 		private void init () {
 #if HAVE_COMPILER_BACKEND
-#if COMPILER_BACKEND_STATIC_COMPILATION
+#if COMPILER_BACKEND_EMBEDDED
 			_init_go_runtime ();
 			build = (BuildFunc) _build;
 			watch = (WatchFunc) _watch;
 			WatchSession.dispose = (WatchSession.DisposeFunc) WatchSession._dispose;
-#else
+#elif COMPILER_BACKEND_SHARED
 			unowned uint8[] backend_so = Frida.Data.Compiler.get_frida_compiler_backend_so_blob ().data;
 
 			Module? backend = null;
@@ -276,6 +276,12 @@ namespace Frida {
 			build = resolve_symbol (backend, "_frida_compiler_backend_build");
 			watch = resolve_symbol (backend, "_frida_compiler_backend_watch");
 			WatchSession.dispose = resolve_symbol (backend, "_frida_compiler_backend_watch_session_dispose");
+#elif COMPILER_BACKEND_EXECUTABLE
+			backend_process = new BackendProcess ();
+
+			build = executable_build;
+			watch = executable_watch;
+			WatchSession.dispose = executable_watch_session_dispose;
 #endif
 #endif
 		}
@@ -291,16 +297,15 @@ namespace Frida {
 		[CCode (has_target = false)]
 		private delegate void BuildFunc (string project_root, string entrypoint, OutputFormat output_format,
 			BundleFormat bundle_format, size_t disable_type_check, size_t source_map, size_t compress,
-			string platform, string[] externals, owned BuildCompleteFunc on_complete,
-			DiagnosticFunc on_diagnostic);
+			string platform, string[] externals, DiagnosticFunc on_diagnostic, owned BuildCompleteFunc on_complete);
 
 		[CCode (has_target = false)]
 		private delegate void WatchFunc (string project_root, string entrypoint, OutputFormat output_format,
 			BundleFormat bundle_format, size_t disable_type_check, size_t source_map, size_t compress,
-			string platform, string[] externals, owned WatchReadyFunc on_ready, StartingFunc on_starting,
-			FinishedFunc on_finished, OutputFunc on_output, DiagnosticFunc on_diagnostic);
+			string platform, string[] externals, StartingFunc on_starting, FinishedFunc on_finished,
+			OutputFunc on_output, DiagnosticFunc on_diagnostic, owned WatchReadyFunc on_ready);
 
-#if COMPILER_BACKEND_STATIC_COMPILATION
+#if COMPILER_BACKEND_EMBEDDED
 		private extern void _init_go_runtime ();
 		private extern void _build ();
 		private extern void _watch ();
@@ -312,7 +317,7 @@ namespace Frida {
 
 			private DisposeFunc? dispose;
 
-#if COMPILER_BACKEND_STATIC_COMPILATION
+#if COMPILER_BACKEND_EMBEDDED
 			private extern void _dispose ();
 #endif
 		}
@@ -325,14 +330,614 @@ namespace Frida {
 		private delegate void DiagnosticFunc (owned string category, int code, owned string? path, int line, int character,
 			owned string text);
 
-#if HAVE_COMPILER_BACKEND && !COMPILER_BACKEND_STATIC_COMPILATION
-		private static T resolve_symbol<T> (Module m, string name) {
+#if HAVE_COMPILER_BACKEND && COMPILER_BACKEND_SHARED
+		private T resolve_symbol<T> (Module m, string name) {
 			void * address;
 			if (!m.symbol (name, out address))
 				assert_not_reached ();
 			return (T) address;
 		}
 #endif
+
+#if COMPILER_BACKEND_EXECUTABLE
+		private BackendProcess? backend_process;
+
+		private static void executable_build (string project_root, string entrypoint, OutputFormat output_format,
+				BundleFormat bundle_format, size_t disable_type_check, size_t source_map, size_t compress,
+				string platform, string[] externals, DiagnosticFunc on_diagnostic, owned BuildCompleteFunc on_complete) {
+			backend_process.build (project_root, entrypoint, output_format, bundle_format, disable_type_check, source_map,
+				compress, platform, externals, on_diagnostic, (owned) on_complete);
+		}
+
+		private static void executable_watch (string project_root, string entrypoint, OutputFormat output_format,
+				BundleFormat bundle_format, size_t disable_type_check, size_t source_map, size_t compress,
+				string platform, string[] externals, StartingFunc on_starting, FinishedFunc on_finished,
+				OutputFunc on_output, DiagnosticFunc on_diagnostic, owned WatchReadyFunc on_ready) {
+			backend_process.watch (project_root, entrypoint, output_format, bundle_format, disable_type_check, source_map,
+				compress, platform, externals, on_starting, on_finished, on_output, on_diagnostic, (owned) on_ready);
+		}
+
+		private static void executable_watch_session_dispose (size_t handle) {
+			backend_process.dispose_watch_session (handle);
+		}
+
+		private class BackendProcess : Object {
+			private Subprocess? process;
+			private BufferedInputStream? input;
+			private OutputStream? output;
+			private DataInputStream? errput;
+
+			private ByteArray pending_output = new ByteArray ();
+			private bool writing = false;
+
+			private uint next_request_id = 1;
+			private uint next_session_id = 1;
+
+			private Gee.Map<uint, PendingBuild> pending_builds = new Gee.HashMap<uint, PendingBuild> ();
+			private Gee.Map<uint, WatchEntry> watches = new Gee.HashMap<uint, WatchEntry> ();
+
+			private Cancellable io_cancellable = new Cancellable ();
+
+			construct {
+				try_start ();
+			}
+
+			private void try_start () {
+				try {
+					ensure_started ();
+				} catch (GLib.Error e) {
+				}
+			}
+
+			private void ensure_started () throws GLib.Error {
+				if (process != null)
+					return;
+
+				string path = extract_backend_executable ();
+				try {
+					var p = new Subprocess (STDIN_PIPE | STDOUT_PIPE | STDERR_PIPE, path);
+					process = p;
+
+					input = (BufferedInputStream) Object.new (typeof (BufferedInputStream),
+						"base-stream", p.get_stdout_pipe (),
+						"close-base-stream", false,
+						"buffer-size", 128 * 1024);
+					output = p.get_stdin_pipe ();
+					errput = new DataInputStream (p.get_stderr_pipe ());
+
+					process_incoming_messages.begin ();
+					process_stderr_stream.begin (errput);
+				} finally {
+					FileUtils.unlink (path);
+				}
+			}
+
+			private static string extract_backend_executable () throws GLib.Error {
+				unowned uint8[] blob = Frida.Data.Compiler.get_frida_compiler_backend_blob ().data;
+
+				string path;
+				{
+					var fd = new FileDescriptor (FileUtils.open_tmp ("frida-compiler-backend-XXXXXX", out path));
+					fd.pwrite_all (blob, 0);
+				}
+
+				FileUtils.chmod (path, 0700);
+
+				return path;
+			}
+
+			private void handle_process_failure (string message) {
+				io_cancellable.cancel ();
+				io_cancellable = new Cancellable ();
+
+				if (process != null) {
+					if (!process.get_if_exited ())
+						process.force_exit ();
+				}
+
+				process = null;
+				input = null;
+				output = null;
+				errput = null;
+
+				foreach (var e in pending_builds.entries)
+					e.value.on_complete (null, message);
+				pending_builds.clear ();
+
+				foreach (var e in watches.entries) {
+					var entry = e.value;
+					if (entry.on_ready != null)
+						entry.on_ready (0, message);
+				}
+				watches.clear ();
+
+				pending_output = new ByteArray ();
+				writing = false;
+			}
+
+			public void build (string project_root, string entrypoint, OutputFormat output_format, BundleFormat bundle_format,
+					size_t disable_type_check, size_t source_map, size_t compress, string platform, string[] externals,
+					DiagnosticFunc on_diagnostic, owned BuildCompleteFunc on_complete) {
+				try {
+					ensure_started ();
+				} catch (GLib.Error e) {
+					on_complete (null, e.message);
+					return;
+				}
+
+				uint request_id = allocate_request_id ();
+
+				pending_builds[request_id] = new PendingBuild ((owned) on_complete, on_diagnostic);
+
+				post_message (make_build_request (
+					request_id,
+					project_root,
+					entrypoint,
+					output_format,
+					bundle_format,
+					disable_type_check != 0,
+					source_map != 0,
+					compress != 0,
+					platform,
+					externals
+				));
+			}
+
+			private class PendingBuild {
+				public BuildCompleteFunc on_complete;
+				public unowned DiagnosticFunc on_diagnostic;
+
+				public PendingBuild (owned BuildCompleteFunc on_complete, DiagnosticFunc on_diagnostic) {
+					this.on_complete = (owned) on_complete;
+					this.on_diagnostic = on_diagnostic;
+				}
+			}
+
+			public void watch (string project_root, string entrypoint, OutputFormat output_format, BundleFormat bundle_format,
+					size_t disable_type_check, size_t source_map, size_t compress, string platform, string[] externals,
+					StartingFunc on_starting, FinishedFunc on_finished, OutputFunc on_output,
+					DiagnosticFunc on_diagnostic, owned WatchReadyFunc on_ready) {
+				try {
+					ensure_started ();
+				} catch (GLib.Error e) {
+					on_ready (0, e.message);
+					return;
+				}
+
+				uint session_id = allocate_session_id ();
+
+				watches[session_id] = new WatchEntry ((owned) on_ready, on_starting, on_finished, on_output, on_diagnostic);
+
+				post_message (make_watch_request (
+					session_id,
+					project_root,
+					entrypoint,
+					output_format,
+					bundle_format,
+					disable_type_check != 0,
+					source_map != 0,
+					compress != 0,
+					platform,
+					externals
+				));
+			}
+
+			private class WatchEntry {
+				public WatchReadyFunc? on_ready;
+				public unowned StartingFunc on_starting;
+				public unowned FinishedFunc on_finished;
+				public unowned OutputFunc on_output;
+				public unowned DiagnosticFunc on_diagnostic;
+
+				public WatchEntry (owned WatchReadyFunc on_ready, StartingFunc on_starting, FinishedFunc on_finished,
+						OutputFunc on_output, DiagnosticFunc on_diagnostic) {
+					this.on_ready = (owned) on_ready;
+					this.on_starting = on_starting;
+					this.on_finished = on_finished;
+					this.on_output = on_output;
+					this.on_diagnostic = on_diagnostic;
+				}
+			}
+
+			public void dispose_watch_session (size_t handle) {
+				uint session_id = (uint) handle;
+
+				WatchEntry entry;
+				if (!watches.unset (session_id, out entry))
+					return;
+
+				if (process != null)
+					post_message (make_dispose_request (session_id));
+			}
+
+			private static string make_build_request (uint id, string project_root, string entrypoint,
+					OutputFormat output_format, BundleFormat bundle_format, bool disable_type_check,
+					bool source_map, bool compress, string platform, string[] externals) {
+				return make_request ("build", "id", id, project_root, entrypoint, output_format, bundle_format,
+					disable_type_check, source_map, compress, platform, externals);
+			}
+
+			private static string make_watch_request (uint session_id, string project_root, string entrypoint,
+					OutputFormat output_format, BundleFormat bundle_format, bool disable_type_check,
+					bool source_map, bool compress, string platform, string[] externals) {
+				return make_request ("watch", "session_id", session_id, project_root, entrypoint, output_format,
+					bundle_format, disable_type_check, source_map, compress, platform, externals);
+			}
+
+			private static string make_request (string type, string id_name, uint id, string project_root, string entrypoint,
+					OutputFormat output_format, BundleFormat bundle_format, bool disable_type_check,
+					bool source_map, bool compress, string platform, string[] externals) {
+				var builder = new Json.Builder ();
+
+				builder
+					.begin_object ()
+						.set_member_name ("type")
+						.add_string_value (type)
+						.set_member_name (id_name)
+						.add_int_value (id)
+						.set_member_name ("project_root")
+						.add_string_value (project_root)
+						.set_member_name ("entrypoint")
+						.add_string_value (entrypoint)
+						.set_member_name ("output_format")
+						.add_string_value (output_format.to_nick ())
+						.set_member_name ("bundle_format")
+						.add_string_value (bundle_format.to_nick ())
+						.set_member_name ("disable_type_check")
+						.add_boolean_value (disable_type_check)
+						.set_member_name ("source_map")
+						.add_boolean_value (source_map)
+						.set_member_name ("compress")
+						.add_boolean_value (compress)
+						.set_member_name ("platform")
+						.add_string_value (platform)
+						.set_member_name ("externals")
+						.begin_array ();
+
+				foreach (unowned string e in externals)
+					builder.add_string_value (e);
+
+				builder
+						.end_array ()
+					.end_object ();
+
+				return Json.to_string (builder.get_root (), false);
+			}
+
+			private static string make_dispose_request (uint session_id) {
+				var builder = new Json.Builder ();
+
+				builder
+					.begin_object ()
+						.set_member_name ("type")
+						.add_string_value ("dispose")
+						.set_member_name ("session_id")
+						.add_int_value (session_id)
+					.end_object ();
+
+				return Json.to_string (builder.get_root (), false);
+			}
+
+			private uint allocate_request_id () {
+				uint start = next_request_id;
+
+				do {
+					uint id = next_request_id++;
+					if (next_request_id == 0)
+						next_request_id = 1;
+
+					if (!pending_builds.has_key (id))
+						return id;
+				} while (next_request_id != start);
+
+				assert_not_reached ();
+			}
+
+			private uint allocate_session_id () {
+				uint start = next_session_id;
+
+				do {
+					uint id = next_session_id++;
+					if (next_session_id == 0)
+						next_session_id = 1;
+
+					if (!watches.has_key (id))
+						return id;
+				} while (next_session_id != start);
+
+				assert_not_reached ();
+			}
+
+			private void post_message (string json) {
+				unowned uint8[] raw_json = json.data;
+
+				uint32 size = ((uint32) raw_json.length).to_big_endian ();
+				pending_output.append ((uint8[]) &size);
+				pending_output.append (raw_json);
+
+				if (!writing) {
+					writing = true;
+
+					var source = new IdleSource ();
+					source.set_callback (() => {
+						process_pending_output.begin ();
+						return false;
+					});
+					source.attach (MainContext.get_thread_default ());
+				}
+			}
+
+			private async void process_pending_output () {
+				while (pending_output.len > 0) {
+					uint8[] batch = pending_output.steal ();
+
+					size_t bytes_written;
+					try {
+						yield output.write_all_async (batch, Priority.DEFAULT, io_cancellable, out bytes_written);
+					} catch (GLib.Error e) {
+						handle_process_failure ("Compiler backend process terminated unexpectedly");
+						return;
+					}
+				}
+
+				writing = false;
+			}
+
+			private async void process_incoming_messages () {
+				try {
+					while (true) {
+						size_t header_size = 4;
+						if (input.get_available () < header_size)
+							yield fill_until_n_bytes_available (header_size);
+
+						uint32 body_size = 0;
+						unowned uint8[] size_buf = ((uint8[]) &body_size)[:4];
+						input.peek (size_buf);
+						body_size = uint32.from_big_endian (body_size);
+
+						size_t full_size = header_size + body_size;
+						if (input.get_available () < full_size)
+							yield fill_until_n_bytes_available (full_size);
+
+						var raw_json = new uint8[body_size + 1];
+						input.peek (raw_json[:body_size], header_size);
+
+						unowned string json = (string) raw_json;
+
+						handle_message (json);
+
+						input.skip (full_size, io_cancellable);
+					}
+				} catch (GLib.Error e) {
+					handle_process_failure (e.message);
+				}
+			}
+
+			private void handle_message (string json) throws Error {
+				Json.Node root;
+				try {
+					root = Json.from_string (json);
+				} catch (GLib.Error e) {
+					throw new Error.PROTOCOL ("%s", e.message);
+				}
+
+				var reader = new Json.Reader (root);
+
+				reader.read_member ("type");
+				unowned string? type = reader.get_string_value ();
+				if (type == null)
+					throw new Error.PROTOCOL ("Missing or invalid 'type' value");
+				reader.end_member ();
+
+				var tokens = type.split (":", 2);
+				if (tokens.length != 2)
+					throw new Error.PROTOCOL ("Invalid 'type' value");
+
+				unowned string scope = tokens[0];
+				unowned string subtype = tokens[1];
+
+				if (scope == "build")
+					handle_build_message (subtype, reader);
+				else if (scope == "watch")
+					handle_watch_message (subtype, reader);
+				else
+					throw new Error.PROTOCOL ("Unknown 'type' scope");
+			}
+
+			private void handle_build_message (string type, Json.Reader reader) throws Error {
+				if (type == "complete")
+					handle_build_complete_message (reader);
+				else if (type == "diagnostic")
+					handle_build_diagnostic_message (reader);
+				else
+					throw new Error.PROTOCOL ("Unknown build message type: %s", type);
+			}
+
+			private void handle_watch_message (string type, Json.Reader reader) throws Error {
+				if (type == "ready")
+					handle_watch_ready_message (reader);
+				else if (type == "starting" || type == "finished" || type == "output" || type == "diagnostic")
+					handle_watch_event_message (reader, type);
+				else
+					throw new Error.PROTOCOL ("Unknown watch message type: %s", type);
+			}
+
+			private void handle_build_complete_message (Json.Reader reader) throws Error {
+				reader.read_member ("id");
+				uint id = (uint) reader.get_int_value ();
+				reader.end_member ();
+
+				PendingBuild pending;
+				if (!pending_builds.unset (id, out pending))
+					throw new Error.PROTOCOL ("Invalid pending build ID: %u", id);
+
+				if (reader.read_member ("error")) {
+					unowned string? error = reader.get_string_value ();
+					if (error == null)
+						throw new Error.PROTOCOL ("Missing or invalid 'error' value");
+					reader.end_member ();
+
+					pending.on_complete (null, error);
+					return;
+				}
+				reader.end_member ();
+
+				reader.read_member ("bundle");
+				unowned string? bundle = reader.get_string_value ();
+				if (bundle == null)
+					throw new Error.PROTOCOL ("Missing or invalid 'bundle' value");
+				reader.end_member ();
+
+				pending.on_complete (bundle, null);
+			}
+
+			private void handle_build_diagnostic_message (Json.Reader reader) throws Error {
+				reader.read_member ("id");
+				uint id = (uint) reader.get_int_value ();
+				reader.end_member ();
+
+				var pending = pending_builds[id];
+				if (pending == null)
+					throw new Error.PROTOCOL ("Invalid pending build ID: %u", id);
+
+				emit_diagnostic_from_json (reader, pending.on_diagnostic);
+			}
+
+			private void handle_watch_ready_message (Json.Reader reader) throws Error {
+				reader.read_member ("session_id");
+				uint session_id = (uint) reader.get_int_value ();
+				reader.end_member ();
+
+				var watch = watches[session_id];
+				if (watch == null)
+					throw new Error.PROTOCOL ("Invalid watch session ID: %u", session_id);
+
+				if (reader.read_member ("error")) {
+					unowned string? error = reader.get_string_value ();
+					if (error == null)
+						throw new Error.PROTOCOL ("Missing or invalid 'error' value");
+					reader.end_member ();
+
+					watches.unset (session_id);
+					watch.on_ready (0, error);
+					return;
+				}
+				reader.end_member ();
+
+				var on_ready = (owned) watch.on_ready;
+				if (on_ready == null)
+					throw new Error.PROTOCOL ("Duplicate watch:ready for session ID: %u", session_id);
+
+				watch.on_ready = null;
+				on_ready (session_id, null);
+			}
+
+			private void handle_watch_event_message (Json.Reader reader, string type) throws Error {
+				reader.read_member ("session_id");
+				var session_id = (uint) reader.get_int_value ();
+				reader.end_member ();
+
+				var watch = watches[session_id];
+				if (watch == null)
+					throw new Error.PROTOCOL ("Invalid watch session ID: %u", session_id);
+
+				if (type == "starting") {
+					watch.on_starting ();
+					return;
+				}
+
+				if (type == "finished") {
+					watch.on_finished ();
+					return;
+				}
+
+				if (type == "output") {
+					reader.read_member ("bundle");
+					unowned string? bundle = reader.get_string_value ();
+					if (bundle == null)
+						throw new Error.PROTOCOL ("Missing or invalid 'bundle' value");
+					reader.end_member ();
+
+					watch.on_output (bundle);
+					return;
+				}
+
+				emit_diagnostic_from_json (reader, watch.on_diagnostic);
+			}
+
+			private static void emit_diagnostic_from_json (Json.Reader reader, DiagnosticFunc on_diagnostic) throws Error {
+				reader.read_member ("category");
+				unowned string? category = reader.get_string_value ();
+				if (category == null)
+					throw new Error.PROTOCOL ("Missing or invalid 'category' value");
+				reader.end_member ();
+
+				reader.read_member ("code");
+				int code = (int) reader.get_int_value ();
+				reader.end_member ();
+
+				string? path = null;
+				int line = 0;
+				int character = 0;
+
+				if (reader.read_member ("path")) {
+					path = reader.get_string_value ();
+					reader.end_member ();
+
+					reader.read_member ("line");
+					line = (int) reader.get_int_value ();
+					reader.end_member ();
+
+					reader.read_member ("character");
+					character = (int) reader.get_int_value ();
+					reader.end_member ();
+				} else {
+					reader.end_member ();
+				}
+
+				reader.read_member ("text");
+				unowned string? text = reader.get_string_value ();
+				if (text == null)
+					throw new Error.PROTOCOL ("Missing or invalid 'text' value");
+				reader.end_member ();
+
+				on_diagnostic (category, code, path, line, character, text);
+			}
+
+			private async void process_stderr_stream (DataInputStream stream) {
+				try {
+					while (true) {
+						string? line = yield stream.read_line_utf8_async (Priority.DEFAULT, io_cancellable);
+						if (line == null)
+							break;
+						printerr ("[frida-compiler-backend stderr] %s\n", line);
+					}
+				} catch (GLib.Error e) {
+				}
+			}
+
+			private async void fill_until_n_bytes_available (size_t minimum) throws Error, IOError {
+				size_t available = input.get_available ();
+				while (available < minimum) {
+					if (input.get_buffer_size () < minimum)
+						input.set_buffer_size (minimum);
+
+					ssize_t n;
+					try {
+						n = yield input.fill_async ((ssize_t) (input.get_buffer_size () - available),
+							Priority.DEFAULT, io_cancellable);
+					} catch (GLib.Error e) {
+						throw new Error.TRANSPORT ("Compiler backend process terminated unexpectedly");
+					}
+
+					if (n == 0)
+						throw new Error.TRANSPORT ("Compiler backend process terminated unexpectedly");
+
+					available += n;
+				}
+			}
+		}
+#endif
 	}
 
 	private string compute_project_root (string entrypoint, CompilerOptions options) {

src/compiler/frontend_capi.go

@@ -0,0 +1,249 @@
+//go:build !frida_compiler_backend_executable
+
+package main
+
+/*
+#include <stdint.h>
+
+typedef enum {
+  FRIDA_OUTPUT_UNESCAPED,
+  FRIDA_OUTPUT_HEX_BYTES,
+  FRIDA_OUTPUT_C_STRING,
+} FridaOutputFormat;
+
+typedef enum {
+  FRIDA_BUNDLE_ESM,
+  FRIDA_BUNDLE_IIFE,
+} FridaBundleFormat;
+
+typedef void (* FridaBuildCompleteFunc) (char * bundle, char * error_message, void * user_data);
+typedef void (* FridaWatchReadyFunc) (uintptr_t session_handle, char * error_message, void * user_data);
+typedef void (* FridaStartingFunc) (void * user_data);
+typedef void (* FridaFinishedFunc) (void * user_data);
+typedef void (* FridaOutputFunc) (char * bundle, void * user_data);
+typedef void (* FridaDiagnosticFunc) (char * category, int code, char * path, int line, int character, char * text,
+    void * user_data);
+typedef void (* FridaDestroyFunc) (void * user_data);
+
+static inline void
+invoke_build_complete_func (FridaBuildCompleteFunc fn,
+                            char * bundle,
+                            char * error_message,
+                            void * user_data)
+{
+  fn (bundle, error_message, user_data);
+}
+
+static inline void
+invoke_watch_ready_func (FridaWatchReadyFunc fn,
+                         uintptr_t session_handle,
+                         char * error_message,
+                         void * user_data)
+{
+  fn (session_handle, error_message, user_data);
+}
+
+static inline void
+invoke_starting_func (FridaStartingFunc fn,
+                      void * user_data)
+{
+  fn (user_data);
+}
+
+static inline void
+invoke_finished_func (FridaFinishedFunc fn,
+                      void * user_data)
+{
+  fn (user_data);
+}
+
+static inline void
+invoke_output_func (FridaOutputFunc fn,
+                    char * bundle,
+                    void * user_data)
+{
+  fn (bundle, user_data);
+}
+
+static inline void
+invoke_diagnostic_func (FridaDiagnosticFunc fn,
+                        char * category,
+                        int code,
+                        char * path,
+                        int line,
+                        int character,
+                        char * text,
+                        void * user_data)
+{
+  fn (category, code, path, line, character, text, user_data);
+}
+
+static inline void
+invoke_destroy_func (FridaDestroyFunc fn,
+                     void * user_data)
+{
+  fn (user_data);
+}
+*/
+import "C"
+
+import (
+	"runtime/cgo"
+	"unsafe"
+)
+
+//export _frida_compiler_backend_build
+func _frida_compiler_backend_build(cProjectRoot, cEntrypoint *C.char, outputFormat C.FridaOutputFormat, bundleFormat C.FridaBundleFormat,
+	disableTypeCheck, sourceMap, compress uintptr, cPlatform *C.char, cExternals **C.char, numExternals C.int,
+	onDiagnosticFn C.FridaDiagnosticFunc, onDiagnosticData unsafe.Pointer, onCompleteFn C.FridaBuildCompleteFunc,
+	onCompleteData unsafe.Pointer, onCompleteDataDestroy C.FridaDestroyFunc) {
+	options := BuildOptions{
+		ProjectRoot:      C.GoString(cProjectRoot),
+		Entrypoint:       C.GoString(cEntrypoint),
+		OutputFormat:     OutputFormat(outputFormat),
+		BundleFormat:     BundleFormat(bundleFormat),
+		DisableTypeCheck: disableTypeCheck != 0,
+		SourceMap:        sourceMap != 0,
+		Compress:         compress != 0,
+		Platform:         platformFromFrida(C.GoString(cPlatform)),
+		Externals:        parseCExternals(cExternals, numExternals),
+	}
+	onDiagnostic := NewCDelegate(onDiagnosticFn, onDiagnosticData, nil)
+	onComplete := NewCDelegate(onCompleteFn, onCompleteData, onCompleteDataDestroy)
+
+	go func() {
+		defer onComplete.Dispose()
+		defer onDiagnostic.Dispose()
+
+		onDiagnostic := makeCBuildDiagnosticCallback(onDiagnostic)
+
+		bundle, err := build(options, onDiagnostic)
+
+		var cBundle, cErrorMessage *C.char
+		if err == nil {
+			cBundle = C.CString(bundle)
+		} else {
+			cErrorMessage = C.CString(err.Error())
+		}
+		C.invoke_build_complete_func(onComplete.Func, cBundle, cErrorMessage, onComplete.Data)
+	}()
+}
+
+//export _frida_compiler_backend_watch
+func _frida_compiler_backend_watch(cProjectRoot, cEntrypoint *C.char, outputFormat C.FridaOutputFormat, bundleFormat C.FridaBundleFormat,
+	disableTypeCheck, sourceMap, compress uintptr, cPlatform *C.char, cExternals **C.char, numExternals C.int,
+	onStartingFn C.FridaStartingFunc, onStartingData unsafe.Pointer,
+	onFinishedFn C.FridaFinishedFunc, onFinishedData unsafe.Pointer,
+	onOutputFn C.FridaOutputFunc, onOutputData unsafe.Pointer,
+	onDiagnosticFn C.FridaDiagnosticFunc, onDiagnosticData unsafe.Pointer,
+	onReadyFn C.FridaWatchReadyFunc, onReadyData unsafe.Pointer, onReadyDataDestroy C.FridaDestroyFunc) {
+	options := BuildOptions{
+		ProjectRoot:      C.GoString(cProjectRoot),
+		Entrypoint:       C.GoString(cEntrypoint),
+		OutputFormat:     OutputFormat(outputFormat),
+		BundleFormat:     BundleFormat(bundleFormat),
+		DisableTypeCheck: disableTypeCheck != 0,
+		SourceMap:        sourceMap != 0,
+		Compress:         compress != 0,
+		Platform:         platformFromFrida(C.GoString(cPlatform)),
+		Externals:        parseCExternals(cExternals, numExternals),
+	}
+	onStarting := NewCDelegate(onStartingFn, onStartingData, nil)
+	onFinished := NewCDelegate(onFinishedFn, onFinishedData, nil)
+	onOutput := NewCDelegate(onOutputFn, onOutputData, nil)
+	onDiagnostic := NewCDelegate(onDiagnosticFn, onDiagnosticData, nil)
+	onReady := NewCDelegate(onReadyFn, onReadyData, onReadyDataDestroy)
+
+	go func() {
+		defer onReady.Dispose()
+
+		onDispose := func() {
+			onStarting.Dispose()
+			onFinished.Dispose()
+			onOutput.Dispose()
+			onDiagnostic.Dispose()
+		}
+
+		callbacks := BuildEventCallbacks{
+			OnStart: func() {
+				C.invoke_starting_func(onStarting.Func, onStarting.Data)
+			},
+			OnEnd: func() {
+				C.invoke_finished_func(onFinished.Func, onFinished.Data)
+			},
+			OnOutput: func(bundle string) {
+				C.invoke_output_func(onOutput.Func, C.CString(bundle), onOutput.Data)
+			},
+			OnDiagnostic: makeCBuildDiagnosticCallback(onDiagnostic),
+		}
+
+		session, err := NewWatchSession(options, onDispose, callbacks)
+
+		var cSession C.uintptr_t
+		var cErrorMessage *C.char
+		if err == nil {
+			cSession = C.uintptr_t(cgo.NewHandle(session))
+		} else {
+			cErrorMessage = C.CString(err.Error())
+		}
+		C.invoke_watch_ready_func(onReady.Func, cSession, cErrorMessage, onReady.Data)
+	}()
+}
+
+//export _frida_compiler_backend_watch_session_dispose
+func _frida_compiler_backend_watch_session_dispose(h uintptr) {
+	handle := cgo.Handle(h)
+	session := handle.Value().(*WatchSession)
+	session.Dispose()
+	handle.Delete()
+}
+
+func parseCExternals(cExternals **C.char, numExternals C.int) []string {
+	if numExternals == 0 {
+		return nil
+	}
+
+	n := int(numExternals)
+	cArray := (*[1 << 20]*C.char)(unsafe.Pointer(cExternals))[:n:n]
+
+	externals := make([]string, n)
+	for i := 0; i < n; i++ {
+		externals[i] = C.GoString(cArray[i])
+	}
+
+	return externals
+}
+
+func makeCBuildDiagnosticCallback(onDiagnostic *CDelegate[C.FridaDiagnosticFunc]) BuildDiagnosticCallback {
+	return func(d Diagnostic) {
+		var cPath *C.char
+		if d.path != "" {
+			cPath = C.CString(d.path)
+		}
+
+		C.invoke_diagnostic_func(onDiagnostic.Func, C.CString(d.category), C.int(d.code), cPath, C.int(d.line),
+			C.int(d.character), C.CString(d.text), onDiagnostic.Data)
+	}
+}
+
+type CDelegate[F any] struct {
+	Func        F
+	null        F
+	Data        unsafe.Pointer
+	dataDestroy C.FridaDestroyFunc
+}
+
+func NewCDelegate[F any](function F, data unsafe.Pointer, dataDestroy C.FridaDestroyFunc) *CDelegate[F] {
+	return &CDelegate[F]{Func: function, Data: data, dataDestroy: dataDestroy}
+}
+
+func (d *CDelegate[F]) Dispose() {
+	if d.dataDestroy != nil {
+		C.invoke_destroy_func(d.dataDestroy, d.Data)
+	}
+	d.Func = d.null
+	d.Data = nil
+	d.dataDestroy = nil
+}
+
+func main() {}

src/compiler/frontend_stdio.go

@@ -0,0 +1,263 @@
+//go:build frida_compiler_backend_executable
+
+package main
+
+import (
+	"bufio"
+	"encoding/binary"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"sync"
+)
+
+type BackendRequest struct {
+	Type             string   `json:"type"`
+	ID               uint     `json:"id,omitempty"`
+	SessionID        uint     `json:"session_id,omitempty"`
+	ProjectRoot      string   `json:"project_root,omitempty"`
+	Entrypoint       string   `json:"entrypoint,omitempty"`
+	OutputFormat     string   `json:"output_format,omitempty"`
+	BundleFormat     string   `json:"bundle_format,omitempty"`
+	DisableTypeCheck bool     `json:"disable_type_check,omitempty"`
+	SourceMap        bool     `json:"source_map,omitempty"`
+	Compress         bool     `json:"compress,omitempty"`
+	Platform         string   `json:"platform,omitempty"`
+	Externals        []string `json:"externals,omitempty"`
+}
+
+type BackendEvent struct {
+	Type      string `json:"type"`
+	ID        uint   `json:"id,omitempty"`
+	SessionID uint   `json:"session_id,omitempty"`
+
+	Bundle string `json:"bundle,omitempty"`
+	Error  string `json:"error,omitempty"`
+
+	Category  string `json:"category,omitempty"`
+	Code      int    `json:"code,omitempty"`
+	Path      string `json:"path,omitempty"`
+	Line      int    `json:"line,omitempty"`
+	Character int    `json:"character,omitempty"`
+	Text      string `json:"text,omitempty"`
+}
+
+func main() {
+	if err := run(); err != nil {
+		fmt.Fprintln(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	reader := bufio.NewReaderSize(os.Stdin, 128*1024)
+	writer := bufio.NewWriterSize(os.Stdout, 128*1024)
+
+	var outputMu sync.Mutex
+	var sessionsMu sync.Mutex
+	sessions := make(map[uint]*WatchSession)
+
+	emit := func(ev BackendEvent) {
+		outputMu.Lock()
+		defer outputMu.Unlock()
+
+		if err := writeMessage(writer, ev); err != nil {
+			fmt.Fprintln(os.Stderr, err.Error())
+		}
+	}
+
+	for {
+		var req BackendRequest
+		if err := readMessage(reader, &req); err != nil {
+			if errors.Is(err, io.EOF) {
+				return nil
+			}
+			return err
+		}
+
+		switch req.Type {
+		case "build":
+			go func(req BackendRequest) {
+				options, err := buildOptionsFromRequest(req)
+				if err != nil {
+					emit(BackendEvent{
+						Type:  "build:complete",
+						ID:    req.ID,
+						Error: err.Error(),
+					})
+					return
+				}
+
+				onDiagnostic := func(d Diagnostic) {
+					ev := BackendEvent{
+						Type:      "build:diagnostic",
+						ID:        req.ID,
+						Category:  d.category,
+						Code:      d.code,
+						Path:      d.path,
+						Line:      d.line,
+						Character: d.character,
+						Text:      d.text,
+					}
+					emit(ev)
+				}
+
+				bundle, err := build(options, onDiagnostic)
+
+				ev := BackendEvent{
+					Type: "build:complete",
+					ID:   req.ID,
+				}
+				if err != nil {
+					ev.Error = err.Error()
+				} else {
+					ev.Bundle = bundle
+				}
+				emit(ev)
+			}(req)
+
+		case "watch":
+			go func(req BackendRequest) {
+				options, err := buildOptionsFromRequest(req)
+				if err != nil {
+					emit(BackendEvent{
+						Type:      "watch:ready",
+						SessionID: req.SessionID,
+						Error:     err.Error(),
+					})
+					return
+				}
+
+				callbacks := BuildEventCallbacks{
+					OnStart: func() {
+						emit(BackendEvent{
+							Type:      "watch:starting",
+							SessionID: req.SessionID,
+						})
+					},
+					OnEnd: func() {
+						emit(BackendEvent{
+							Type:      "watch:finished",
+							SessionID: req.SessionID,
+						})
+					},
+					OnOutput: func(bundle string) {
+						emit(BackendEvent{
+							Type:      "watch:output",
+							SessionID: req.SessionID,
+							Bundle:    bundle,
+						})
+					},
+					OnDiagnostic: func(d Diagnostic) {
+						emit(BackendEvent{
+							Type:      "watch:diagnostic",
+							SessionID: req.SessionID,
+							Category:  d.category,
+							Code:      d.code,
+							Path:      d.path,
+							Line:      d.line,
+							Character: d.character,
+							Text:      d.text,
+						})
+					},
+				}
+
+				var session *WatchSession
+				onDispose := func() {
+					sessionsMu.Lock()
+					delete(sessions, req.SessionID)
+					sessionsMu.Unlock()
+				}
+
+				session, err = NewWatchSession(options, onDispose, callbacks)
+				if err != nil {
+					emit(BackendEvent{
+						Type:      "watch:ready",
+						SessionID: req.SessionID,
+						Error:     err.Error(),
+					})
+					return
+				}
+
+				sessionsMu.Lock()
+				sessions[req.SessionID] = session
+				sessionsMu.Unlock()
+
+				emit(BackendEvent{
+					Type:      "watch:ready",
+					SessionID: req.SessionID,
+				})
+			}(req)
+
+		case "dispose":
+			sessionsMu.Lock()
+			session := sessions[req.SessionID]
+			delete(sessions, req.SessionID)
+			sessionsMu.Unlock()
+
+			if session != nil {
+				session.Dispose()
+			}
+
+		default:
+			return fmt.Errorf("unsupported request type: %q", req.Type)
+		}
+	}
+}
+
+func buildOptionsFromRequest(req BackendRequest) (BuildOptions, error) {
+	outputFormat, err := outputFormatFromNick(req.OutputFormat)
+	if err != nil {
+		return BuildOptions{}, err
+	}
+
+	bundleFormat, err := bundleFormatFromNick(req.BundleFormat)
+	if err != nil {
+		return BuildOptions{}, err
+	}
+
+	return BuildOptions{
+		ProjectRoot:      req.ProjectRoot,
+		Entrypoint:       req.Entrypoint,
+		OutputFormat:     outputFormat,
+		BundleFormat:     bundleFormat,
+		DisableTypeCheck: req.DisableTypeCheck,
+		SourceMap:        req.SourceMap,
+		Compress:         req.Compress,
+		Platform:         platformFromFrida(req.Platform),
+		Externals:        req.Externals,
+	}, nil
+}
+
+func readMessage(r io.Reader, out any) error {
+	var size uint32
+	if err := binary.Read(r, binary.BigEndian, &size); err != nil {
+		return err
+	}
+
+	buf := make([]byte, size)
+	if _, err := io.ReadFull(r, buf); err != nil {
+		return err
+	}
+
+	return json.Unmarshal(buf, out)
+}
+
+func writeMessage(w *bufio.Writer, msg any) error {
+	buf, err := json.Marshal(msg)
+	if err != nil {
+		return err
+	}
+
+	if err := binary.Write(w, binary.BigEndian, uint32(len(buf))); err != nil {
+		return err
+	}
+
+	if _, err := w.Write(buf); err != nil {
+		return err
+	}
+
+	return w.Flush()
+}

src/compiler/meson.build

@@ -4,12 +4,30 @@ compiler_sources = files(
 )
 
 if have_compiler_backend
-  output_suffix = compiler_backend_static_compilation ? '' : '-raw'
+  if compiler_backend_mode == 'c-archive'
+    output_files = [
+      'frida-compiler-backend.a',
+      'frida-compiler-backend.h',
+    ]
+  elif compiler_backend_mode == 'c-shared'
+    output_files = [
+      'frida-compiler-backend-raw' + shlib_suffix,
+      'frida-compiler-backend-raw.h',
+    ]
+  elif compiler_backend_mode == 'pie'
+    output_files = [
+      'frida-compiler-backend-raw' + exe_suffix,
+    ]
+  endif
+
   compiler_backend = custom_target('frida-compiler-backend',
     input: [
       'go.mod',
       'go.sum',
+      'frontend_capi.go',
+      'frontend_stdio.go',
       'backend.go',
+      'protocol_types.go',
       'backend.version',
       'tscompiler.go',
       'tsconfig.go',
@@ -17,10 +35,7 @@ if have_compiler_backend
       'package.json',
       'package-lock.json',
     ],
-    output: [
-      'frida-compiler-backend' + output_suffix + (compiler_backend_static_compilation ? '.a' : shlib_suffix),
-      'frida-compiler-backend' + output_suffix + '.h',
-    ],
+    output: output_files,
     command: [
       python,
       files('build-backend.py'),
@@ -32,21 +47,31 @@ if have_compiler_backend
       '@INPUT@',
     ],
   )
-  if compiler_backend_static_compilation
+
+  if compiler_backend_mode == 'c-archive'
     backend_libs += compiler_backend[0]
   else
-    filename = 'frida-compiler-backend' + shlib_suffix
-    identity = (host_os_family == 'darwin') ? 'FridaCompilerBackend' : filename
-    compiler_backend_shlib = custom_target('frida-compiler-backend-shlib',
-      input: compiler_backend[0],
-      output: filename,
-      command: post_process + ['shared-library', identity, 'elf-cleaner:off'],
-    )
+    if compiler_backend_mode == 'c-shared'
+      processed_filename = 'frida-compiler-backend' + shlib_suffix
+      identity = (host_os_family == 'darwin') ? 'FridaCompilerBackend' : processed_filename
+      compiler_backend_binary = custom_target('frida-compiler-backend-binary',
+        input: compiler_backend[0],
+        output: processed_filename,
+        command: post_process + ['shared-library', identity, 'elf-cleaner:off'],
+      )
+    elif compiler_backend_mode == 'pie'
+      processed_filename = 'frida-compiler-backend' + exe_suffix
+      compiler_backend_binary = custom_target('frida-compiler-backend-binary',
+        input: compiler_backend[0],
+        output: processed_filename,
+        command: post_process + ['executable', processed_filename],
+      )
+    endif
 
     compiler_data = custom_target('frida-data-compiler',
       input: [
         'compiler.resources',
-        compiler_backend_shlib,
+        compiler_backend_binary,
       ],
       output: [
         'frida-data-compiler.vapi',

src/compiler/package-lock.json

@@ -33,7 +33,7 @@
         "@frida/url": "^1.0.2",
         "@frida/util": "^1.0.3",
         "@frida/vm": "^2.0.0",
-        "@types/frida-gum": "19.0.1",
+        "@types/frida-gum": "19.0.2",
         "@types/node": "18.19.103",
         "frida-fs": "7.0.0"
       }
@@ -248,9 +248,9 @@
       "license": "MIT"
     },
     "node_modules/@types/frida-gum": {
-      "version": "19.0.1",
-      "resolved": "https://registry.npmjs.org/@types/frida-gum/-/frida-gum-19.0.1.tgz",
-      "integrity": "sha512-mp8BpWWkQFJH86ZN5uXZuDiA7KY/+jDknrw0a06x0/+F5ucPwctHrCuV6iT+LLCp/GyICc36ssedF33B1WoLsw==",
+      "version": "19.0.2",
+      "resolved": "https://registry.npmjs.org/@types/frida-gum/-/frida-gum-19.0.2.tgz",
+      "integrity": "sha512-oh/f1r8dIMDWBoziXP3geIJ8ga/siU32MuifBztGsDglOKbHrhS0E3z0Dab0MIe3UFzC4Bvz/GRHfin2LDE8BQ==",
       "license": "MIT"
     },
     "node_modules/@types/node": {

src/compiler/package.json

@@ -29,7 +29,7 @@
     "@frida/url": "^1.0.2",
     "@frida/util": "^1.0.3",
     "@frida/vm": "^2.0.0",
-    "@types/frida-gum": "19.0.1",
+    "@types/frida-gum": "19.0.2",
     "@types/node": "18.19.103",
     "frida-fs": "7.0.0"
   }

src/compiler/protocol_types.go

@@ -0,0 +1,59 @@
+package main
+
+import (
+	"fmt"
+
+	esbuild "github.com/evanw/esbuild/pkg/api"
+)
+
+type OutputFormat int
+
+const (
+	OutputFormatUnescaped OutputFormat = iota
+	OutputFormatHexBytes
+	OutputFormatCString
+)
+
+func outputFormatFromNick(s string) (OutputFormat, error) {
+	switch s {
+	case "unescaped":
+		return OutputFormatUnescaped, nil
+	case "hex-bytes":
+		return OutputFormatHexBytes, nil
+	case "c-string":
+		return OutputFormatCString, nil
+	default:
+		return 0, fmt.Errorf("unknown output format: %q", s)
+	}
+}
+
+type BundleFormat int
+
+const (
+	BundleFormatESM BundleFormat = iota
+	BundleFormatIIFE
+)
+
+func bundleFormatFromNick(s string) (BundleFormat, error) {
+	switch s {
+	case "esm":
+		return BundleFormatESM, nil
+	case "iife":
+		return BundleFormatIIFE, nil
+	default:
+		return 0, fmt.Errorf("unknown bundle format: %q", s)
+	}
+}
+
+func platformFromFrida(s string) esbuild.Platform {
+	switch s {
+	case "gum":
+		return esbuild.PlatformNode
+	case "browser":
+		return esbuild.PlatformBrowser
+	case "neutral":
+		return esbuild.PlatformNeutral
+	default:
+		panic(fmt.Sprintf("Unknown platform: %q", s))
+	}
+}

src/darwin/frida-helper-backend-glue.m

@@ -444,6 +444,7 @@ static void frida_set_nth_hardware_breakpoint (gpointer state, guint n, GumAddre
 static void frida_set_hardware_single_step (gpointer debug_state, GumDarwinUnifiedThreadState * thread_state, gboolean enabled, GumCpuType cpu_type);
 static gboolean frida_is_hardware_breakpoint_support_working (void);
 
+static gboolean frida_find_restart_with_dyld_in_cache (const GumDarwinSymbolDetails * details, gpointer user_data);
 static GumAddress frida_find_run_initializers_call (mach_port_t task, GumCpuType cpu_type, GumAddress start);
 static GHashTable * frida_find_modinit_strcmp_checks (mach_port_t task, GumDarwinModule * dyld);
 static GumAddress frida_find_function_end (mach_port_t task, GumCpuType cpu_type, GumAddress start, gsize max_size);
@@ -2107,18 +2108,8 @@ _frida_darwin_helper_backend_prepare_spawn_instance_for_injection (FridaDarwinHe
     frida_spawn_instance_set_nth_breakpoint (instance, i++, sim_notify_address, FRIDA_BREAKPOINT_REPEAT_ALWAYS);
   if (instance->dyld_flavor == FRIDA_DYLD_V4_PLUS)
   {
-    GumAddress restart_with_dyld_in_cache = gum_darwin_module_resolve_symbol_address (dyld,
-        "__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN6mach_o6HeaderEPK15DyldSharedCachePv");
-    if (restart_with_dyld_in_cache == 0)
-    {
-      restart_with_dyld_in_cache = gum_darwin_module_resolve_symbol_address (dyld,
-          "__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN5dyld39MachOFileEPK15DyldSharedCachePv");
-    }
-    if (restart_with_dyld_in_cache == 0)
-    {
-      restart_with_dyld_in_cache = gum_darwin_module_resolve_symbol_address (dyld,
-        "__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN5dyld39MachOFileEPv");
-    }
+    GumAddress restart_with_dyld_in_cache = 0;
+    gum_darwin_module_enumerate_symbols (dyld, frida_find_restart_with_dyld_in_cache, &restart_with_dyld_in_cache);
     if (restart_with_dyld_in_cache != 0)
       frida_spawn_instance_set_nth_breakpoint (instance, i++, restart_with_dyld_in_cache, FRIDA_BREAKPOINT_REPEAT_NEVER);
   }
@@ -5442,6 +5433,19 @@ frida_is_hardware_breakpoint_support_working (void)
 #endif
 }
 
+static gboolean
+frida_find_restart_with_dyld_in_cache (const GumDarwinSymbolDetails * details, gpointer user_data)
+{
+  if (strstr (details->name, "restartWithDyldInCache") != NULL)
+  {
+    GumAddress * restart_with_dyld_in_cache = user_data;
+    *restart_with_dyld_in_cache = details->address;
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
 static GumAddress
 frida_find_run_initializers_call (mach_port_t task, GumCpuType cpu_type, GumAddress start)
 {

src/droidy/droidy-host-session.vala

@@ -135,7 +135,18 @@ namespace Frida {
 			if (host_session != null)
 				throw new Error.INVALID_ARGUMENT ("Already created");
 
-			host_session = new DroidyHostSession (device_details, this);
+			string control_endpoint = ("tcp:%" + uint16.FORMAT_MODIFIER + "u").printf (DEFAULT_CONTROL_PORT);
+
+			if (options != null) {
+				Value? control_endpoint_val = options.map["control-endpoint"];
+				if (control_endpoint_val != null) {
+					if (!control_endpoint_val.holds (typeof (string)))
+						throw new Error.INVALID_ARGUMENT ("The control-endpoint option must be a string");
+					control_endpoint = control_endpoint_val.get_string ();
+				}
+			}
+
+			host_session = new DroidyHostSession (device_details, this, control_endpoint);
 			host_session.agent_session_detached.connect (on_agent_session_detached);
 
 			return host_session;
@@ -231,6 +242,11 @@ namespace Frida {
 			construct;
 		}
 
+		public string control_endpoint {
+			get;
+			construct;
+		}
+
 		private Promise<AndroidHelperClient>? helper_client_request;
 		private Droidy.ShellSession? helper_shell;
 
@@ -258,10 +274,12 @@ namespace Frida {
 		private const double MIN_SERVER_CHECK_INTERVAL = 5.0;
 		private const string GADGET_APP_ID = "re.frida.Gadget";
 
-		public DroidyHostSession (Droidy.DeviceDetails device_details, HostChannelProvider channel_provider) {
+		public DroidyHostSession (Droidy.DeviceDetails device_details, HostChannelProvider channel_provider,
+				string control_endpoint) {
 			Object (
 				device_details: device_details,
-				channel_provider: channel_provider
+				channel_provider: channel_provider,
+				control_endpoint: control_endpoint
 			);
 		}
 
@@ -290,8 +308,9 @@ namespace Frida {
 			if (helper_client_request != null) {
 				AndroidHelperClient? helper = yield try_get_helper_client (cancellable);
 				if (helper != null) {
-					on_helper_client_closed (helper);
-					yield helper.close (cancellable);
+					var transport = (AndroidHelperStreamTransport) helper.transport;
+					on_helper_stream_transport_closed (transport);
+					yield transport.close (cancellable);
 				}
 			}
 
@@ -837,9 +856,7 @@ namespace Frida {
 
 			DBusConnection? connection = null;
 			try {
-				var stream = yield channel_provider.open_channel (
-					("tcp:%" + uint16.FORMAT_MODIFIER + "u").printf (DEFAULT_CONTROL_PORT),
-					cancellable);
+				var stream = yield channel_provider.open_channel (control_endpoint, cancellable);
 
 				WebServiceTransport transport = PLAIN;
 				string? origin = null;
@@ -1060,8 +1077,10 @@ namespace Frida {
 					throw e;
 				}
 
-				var helper = new AndroidHelperClient (client.stream);
-				helper.closed.connect (on_helper_client_closed);
+				var transport = new AndroidHelperStreamTransport (client.stream);
+				transport.closed.connect (on_helper_stream_transport_closed);
+
+				var helper = new AndroidHelperClient (transport);
 
 				helper_shell = shell;
 
@@ -1080,8 +1099,8 @@ namespace Frida {
 			}
 		}
 
-		private void on_helper_client_closed (AndroidHelperClient helper) {
-			helper.closed.disconnect (on_helper_client_closed);
+		private void on_helper_stream_transport_closed (AndroidHelperStreamTransport transport) {
+			transport.closed.disconnect (on_helper_stream_transport_closed);
 			helper_client_request = null;
 
 			if (helper_shell != null) {

src/frida.vala

@@ -581,6 +581,40 @@ namespace Frida {
 			return close_request != null;
 		}
 
+		public void override_option (string name, Variant val) throws Error {
+			Value v;
+			switch (val.classify ()) {
+				case BOOLEAN:
+					v = Value (typeof (bool));
+					v.set_boolean (val.get_boolean ());
+					break;
+				case INT64:
+					v = Value (typeof (int64));
+					v.set_int64 (val.get_int64 ());
+					break;
+				case UINT64:
+					v = Value (typeof (uint64));
+					v.set_uint64 (val.get_uint64 ());
+					break;
+				case DOUBLE:
+					v = Value (typeof (double));
+					v.set_double (val.get_double ());
+					break;
+				case STRING:
+					v = Value (typeof (string));
+					v.set_string (val.get_string ());
+					break;
+				default:
+					throw new Error.INVALID_ARGUMENT ("Unsupported option type");
+			}
+
+			lock (host_session_options) {
+				if (host_session_options == null)
+					host_session_options = new HostSessionOptions ();
+				host_session_options.map[name] = v;
+			}
+		}
+
 		public async HashTable<string, Variant> query_system_parameters (Cancellable? cancellable = null) throws Error, IOError {
 			check_open ();
 
@@ -1332,7 +1366,11 @@ namespace Frida {
 			host_session_request = new Promise<HostSession> ();
 
 			try {
-				var session = yield provider.create (manager, host_session_options, cancellable);
+				HostSessionOptions? opts;
+				lock (host_session_options)
+					opts = (host_session_options != null) ? host_session_options.copy () : null;
+
+				var session = yield provider.create (manager, opts, cancellable);
 				attach_host_session (session);
 
 				current_host_session = session;

src/fruity/cs-signature.vala

@@ -0,0 +1,401 @@
+[CCode (gir_namespace = "FridaFruity", gir_version = "1.0")]
+namespace Frida.Fruity {
+	public class CsSignature : Object {
+		public uint32 version;
+		public uint32 pid;
+		public uint32 stuff;
+		public uint32 flags;
+
+		public Gee.List<CsSigOwner> owners = new Gee.ArrayList<CsSigOwner> ();
+
+		private CsSegIndexEntry[]? seg_index = null;
+		private uint32 seg_index_gen = 0;
+
+		private struct CsSegIndexEntry {
+			public uint64 start;
+			public uint64 end;
+			public unowned CsSigOwner owner;
+		}
+
+		public void apply_refresh (CsSignature fresh, uint32 gen) {
+			foreach (var cur in owners) {
+				if (cur.mapped_gen_end != 0)
+					continue;
+
+				bool still_present = false;
+				foreach (var f in fresh.owners) {
+					if (cur.uuid.compare (f.uuid) == 0) {
+						still_present = true;
+						break;
+					}
+				}
+
+				if (!still_present)
+					cur.mapped_gen_end = gen;
+			}
+
+			foreach (var f in fresh.owners) {
+				CsSigOwner? cur = null;
+
+				foreach (var existing in owners) {
+					if (existing.uuid.compare (f.uuid) == 0) {
+						cur = existing;
+						break;
+					}
+				}
+
+				if (cur == null) {
+					f.mapped_gen_start = gen;
+					f.mapped_gen_end = 0;
+					owners.add (f);
+				} else {
+					uint32 start = cur.mapped_gen_start;
+					uint32 end = cur.mapped_gen_end;
+
+					cur.path = f.path;
+					cur.image_base = f.image_base;
+					cur.image_end = f.image_end;
+					cur.segments = f.segments;
+					cur.version = f.version;
+
+					cur.mapped_gen_start = start;
+					cur.mapped_gen_end = end;
+				}
+			}
+
+			invalidate_index ();
+		}
+
+		public void note_unmapped_uuid (Bytes uuid, uint32 gen) {
+			foreach (var o in owners) {
+				if (o.mapped_gen_end != 0)
+					continue;
+				if (o.uuid.compare (uuid) == 0) {
+					o.mapped_gen_end = gen;
+					invalidate_index ();
+					return;
+				}
+			}
+		}
+
+		public void resolve_addresses (uint32 gen, uint64[] addrs, AddressResolved on_symbol, ModulesReady on_modules) {
+			ensure_index (gen);
+
+			var used_owner_to_mod = new Gee.HashMap<CsSigOwner, uint32> ();
+			var module_list = new Gee.ArrayList<CsSigOwner> ();
+
+			foreach (var addr in addrs) {
+				CsSigOwner? owner;
+				uint32 rel;
+
+				if (!try_resolve (addr, out owner, out rel)) {
+					on_symbol (addr, uint32.MAX, 0);
+					continue;
+				}
+
+				uint32 mod_idx;
+				if (!used_owner_to_mod.has_key (owner)) {
+					mod_idx = (uint32) module_list.size;
+					used_owner_to_mod[owner] = mod_idx;
+					module_list.add (owner);
+				} else {
+					mod_idx = used_owner_to_mod[owner];
+				}
+
+				on_symbol (addr, mod_idx, rel);
+			}
+
+			on_modules (module_list);
+		}
+
+		public delegate void AddressResolved (uint64 addr, uint32 module_index, uint32 rel);
+		public delegate void ModulesReady (Gee.List<CsSigOwner> modules);
+
+		private void ensure_index (uint32 gen) {
+			if (seg_index != null && seg_index_gen == gen)
+				return;
+
+			var tmp = new Array<CsSegIndexEntry> (false, false);
+
+			foreach (var owner in owners) {
+				if (!owner_is_mapped_at (owner, gen))
+					continue;
+
+				foreach (var seg in owner.segments) {
+					if (seg.name == "__PAGEZERO")
+						continue;
+					tmp.append_val (CsSegIndexEntry () {
+						start = seg.vmaddr,
+						end = seg.vmaddr + seg.vmsize,
+						owner = owner,
+					});
+				}
+			}
+
+			tmp.sort ((a, b) => {
+				if (a.start < b.start)
+					return -1;
+				if (a.start > b.start)
+					return 1;
+				return 0;
+			});
+
+			seg_index = tmp.steal ();
+			seg_index_gen = gen;
+		}
+
+		private void invalidate_index () {
+			seg_index = null;
+			seg_index_gen = 0;
+		}
+
+		private bool try_resolve (uint64 addr, out CsSigOwner? owner, out uint32 rel) {
+			owner = null;
+			rel = 0;
+
+			int n = seg_index.length;
+			if (n == 0)
+				return false;
+
+			int lo = 0;
+			int hi = n - 1;
+			int best = -1;
+
+			while (lo <= hi) {
+				int mid = lo + ((hi - lo) / 2);
+				if (seg_index[mid].start <= addr) {
+					best = mid;
+					lo = mid + 1;
+				} else {
+					hi = mid - 1;
+				}
+			}
+
+			if (best == -1)
+				return false;
+
+			for (int i = best; i >= 0; i--) {
+				var e = seg_index[i];
+				if (e.start > addr)
+					continue;
+
+				if (addr < e.end) {
+					owner = e.owner;
+					rel = (uint32) (addr - owner.image_base);
+					return true;
+				}
+			}
+
+			return false;
+		}
+
+		private static bool owner_is_mapped_at (CsSigOwner owner, uint32 gen) {
+			if (gen < owner.mapped_gen_start)
+				return false;
+
+			uint32 end = owner.mapped_gen_end;
+			if (end == 0)
+				return true;
+
+			return gen < end;
+		}
+	}
+
+	public class CsSigOwner : Object {
+		public Bytes uuid;
+
+		public uint32 a;
+		public uint32 flags;
+
+		public uint64 load_timestamp;
+		public uint64 unload_timestamp;
+
+		public uint32 cpu_type;
+		public uint32 cpu_subtype;
+
+		public string path;
+		public uint64 image_base;
+		public uint64 image_end;
+		public Gee.List<CsSigSegment> segments = new Gee.ArrayList<CsSigSegment> ();
+
+		public string? version;
+
+		public uint32 mapped_gen_start = 1;
+		public uint32 mapped_gen_end = 0;
+	}
+
+	public class CsSigSegment {
+		public string name;
+		public uint64 vmaddr;
+		public uint64 vmsize;
+	}
+
+	public sealed class CsSignatureParser : Object {
+		private Buffer buf;
+		private BufferReader r;
+
+		public CsSignatureParser (Bytes blob) {
+			buf = new Buffer (blob, LITTLE_ENDIAN, 8);
+			r = new BufferReader (buf);
+		}
+
+		public CsSignature parse () throws Error {
+			uint32 magic = r.read_uint32 ();
+			uint32 version = r.read_uint32 ();
+			uint32 pid = r.read_uint32 ();
+			uint32 stuff = r.read_uint32 ();
+			uint32 flags = r.read_uint32 ();
+			uint32 owner_count = r.read_uint32 ();
+
+			if (magic != 0xff01ff02u)
+				throw new Error.PROTOCOL ("Bad signature magic 0x%08x", magic);
+
+			var sig = new CsSignature ();
+			sig.version = version;
+			sig.pid = pid;
+			sig.stuff = stuff;
+			sig.flags = flags;
+
+			for (uint32 i = 0; i != owner_count; i++)
+				sig.owners.add (parse_owner ());
+
+			decode_optional_data (sig);
+
+			return sig;
+		}
+
+		private CsSigOwner parse_owner () throws Error {
+			var o = new CsSigOwner ();
+
+			o.uuid = r.read_bytes (16);
+
+			o.a = r.read_uint32 ();
+			o.flags = r.read_uint32 () & 0x7fffffff;
+
+			o.load_timestamp = r.read_uint64 ();
+			o.unload_timestamp = r.read_uint64 ();
+
+			o.cpu_type = r.read_uint32 ();
+			o.cpu_subtype = r.read_uint32 ();
+
+			uint32 nsegs = r.read_uint32 ();
+			uint32 str_len = r.read_uint32 ();
+
+			o.path = r.read_fixed_string (str_len);
+
+			for (uint32 i = 0; i != nsegs; i++) {
+				var s = new CsSigSegment ();
+				s.name = r.read_fixed_string (16);
+				s.vmaddr = r.read_uint64 ();
+				s.vmsize = r.read_uint64 ();
+				o.segments.add (s);
+			}
+
+			o.segments.sort ((a, b) => {
+				if (a.vmaddr < b.vmaddr)
+					return -1;
+				if (a.vmaddr > b.vmaddr)
+					return 1;
+				return 0;
+			});
+
+			uint64 image_base = uint64.MAX;
+			uint64 image_end = 0;
+
+			foreach (var seg in o.segments) {
+				if (seg.name != "__PAGEZERO" && seg.vmaddr < image_base)
+					image_base = seg.vmaddr;
+
+				uint64 seg_end = seg.vmaddr + seg.vmsize;
+				if (seg_end > image_end)
+					image_end = seg_end;
+			}
+
+			o.image_base = image_base;
+			o.image_end = image_end;
+
+			return o;
+		}
+
+		private void decode_optional_data (CsSignature sig) throws Error {
+			if (r.available < 8)
+				return;
+
+			size_t start = r.offset;
+
+			uint64 hdr = r.read_uint64 ();
+			uint32 magic = (uint32) (hdr & 0xffffffffu);
+			uint32 sel = (uint32) (hdr >> 32);
+
+			if (magic != 0x00c0ffeeu) {
+				r.seek (start);
+				return;
+			}
+
+			if (sel == 2) {
+				if (r.available < 0x18)
+					throw new Error.PROTOCOL ("Optional v2 truncated");
+				r.skip (0x18);
+				return;
+			}
+
+			if (sel == 3) {
+				skip_optional_v3 ();
+				return;
+			}
+
+			if (sel != 4)
+				return;
+
+			size_t v3_start = r.offset;
+
+			uint32 count = skip_optional_v3 ();
+
+			size_t table_end = v3_start + 0x38 + (size_t) count * 0x60;
+			if (table_end + 4 > buf.size)
+				throw new Error.PROTOCOL ("Optional v4 truncated");
+
+			r.seek (table_end);
+
+			uint32 strings_size = r.read_uint32 ();
+			size_t strings_start = r.offset;
+			size_t strings_end = strings_start + (size_t) strings_size;
+
+			if (strings_end > buf.size)
+				throw new Error.PROTOCOL ("Optional v4 strings overrun");
+
+			r.seek (strings_start);
+
+			for (int i = 0; i < sig.owners.size; i++) {
+				if (r.offset >= strings_end)
+					throw new Error.PROTOCOL ("Optional v4 strings truncated");
+
+				sig.owners[i].version = r.read_string ();
+			}
+
+			r.seek (v3_start + 0x3c + (size_t) count * 0x60 + (size_t) strings_size);
+		}
+
+		private uint32 skip_optional_v3 () throws Error {
+			if (r.available < 0x38)
+				throw new Error.PROTOCOL ("Optional v3 truncated");
+
+			size_t base_offset = r.offset;
+
+			r.skip (0x30);
+			r.read_uint8 ();
+			r.skip (3);
+
+			uint32 count = r.read_uint32 ();
+
+			size_t total = 0x38 + (size_t) count * 0x60;
+
+			if (base_offset + total > buf.size)
+				throw new Error.PROTOCOL ("Optional v3 overrun");
+
+			r.seek (base_offset + total);
+
+			return count;
+		}
+	}
+}

src/fruity/device-monitor.vala

@@ -396,7 +396,17 @@ namespace Frida.Fruity {
 		}
 
 		private static int compare_transports (Transport a, Transport b) {
-			return score_transport (b) - score_transport (a);
+			int res = score_transport (b) - score_transport (a);
+			if (res != 0)
+				return res;
+
+			if (a == b)
+				return 0;
+
+			uintptr ap = (uintptr) (void *) a;
+			uintptr bp = (uintptr) (void *) b;
+
+			return (ap < bp) ? -1 : 1;
 		}
 
 		private static int score_transport (Transport t) {
@@ -783,7 +793,8 @@ namespace Frida.Fruity {
 		}
 
 		private void on_tunnel_lost () {
-			tunnel_request = null;
+			if (tunnel_request.future.ready)
+				tunnel_request = null;
 		}
 
 		public async IOStream open_lockdown_service (string service_name, Cancellable? cancellable) throws Error, IOError {
@@ -1672,7 +1683,8 @@ namespace Frida.Fruity {
 		}
 
 		private void on_tunnel_lost () {
-			tunnel_request = null;
+			if (tunnel_request.future.ready)
+				tunnel_request = null;
 		}
 	}
 

src/fruity/dns.vala

@@ -50,8 +50,8 @@ namespace Frida.Fruity {
 			if (rr.key.klass != IN)
 				throw new Error.PROTOCOL ("Expected an AAAA record of class IN");
 			var subreader = new DnsPacketReader (rr.data);
-			var raw_address = subreader.reader.read_bytes (16);
-			var address = new InetAddress.from_bytes (raw_address.get_data (), IPV6);
+			unowned uint8[] raw_address = subreader.reader.read_data (16);
+			var address = new InetAddress.from_bytes (raw_address, IPV6);
 			return new DnsAaaaRecord () {
 				key = rr.key,
 				ttl = rr.ttl,

src/fruity/dtx.vala

@@ -69,6 +69,20 @@ namespace Frida.Fruity {
 			return result;
 		}
 
+		public async CsSignature query_symbolicator_signature (uint pid, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSNumber.from_integer (pid))
+				.append_object (new NSString (""));
+			var response = yield channel.invoke ("symbolicatorSignatureForPid:trackingSelector:", args, cancellable);
+
+			NSData? data = response as NSData;
+			if (data == null)
+				throw new Error.PROTOCOL ("Malformed response");
+
+			var parser = new CsSignatureParser (data.bytes);
+			return parser.parse ();
+		}
+
 		private static string resolve_real_app_name (string name) {
 			if (name.has_prefix ("/var/"))
 				return "/private" + name;
@@ -307,6 +321,8 @@ namespace Frida.Fruity {
 	}
 
 	public sealed class ProcessControlService : Object, AsyncInitable {
+		public signal void process_terminated (uint pid, int exit_code, int crashing_signal);
+
 		public HostChannelProvider channel_provider {
 			get;
 			construct;
@@ -335,15 +351,746 @@ namespace Frida.Fruity {
 			var connection = yield DTXConnection.obtain (channel_provider, cancellable);
 
 			channel = connection.make_channel ("com.apple.instruments.server.services.processcontrol");
+			channel.invocation.connect (on_invocation);
 
 			return true;
 		}
 
+		public async uint process_identifier_for_bundle_identifier (string bundle_id, Cancellable? cancellable = null)
+				throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSString (bundle_id));
+			var response = yield channel.invoke ("processIdentifierForBundleIdentifier:", args, cancellable);
+
+			NSNumber? pid = response as NSNumber;
+			if (pid == null)
+				throw new Error.PROTOCOL ("Malformed response");
+
+			return (uint) pid.integer;
+		}
+
+		public async bool is_pid_debuggable (uint pid, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSNumber.from_integer (pid));
+			var response = yield channel.invoke ("isPidDebuggable:", args, cancellable);
+
+			NSNumber? is_debuggable = response as NSNumber;
+			if (is_debuggable == null)
+				throw new Error.PROTOCOL ("Malformed response");
+
+			return is_debuggable.boolean;
+		}
+
+		public async void start_observing_pid (uint pid, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSNumber.from_integer (pid));
+			yield channel.invoke ("startObservingPid:", args, cancellable);
+		}
+
+		public async void stop_observing_pid (uint pid, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSNumber.from_integer (pid));
+			yield channel.invoke ("stopObservingPid:", args, cancellable);
+		}
+
+		public async uint launch (string bundle_id, LaunchOptions? options = null, Cancellable? cancellable = null)
+				throws Error, IOError {
+			var opts = options;
+			if (opts == null)
+				opts = new LaunchOptions ();
+
+			var args_val = new NSArray ();
+			foreach (unowned string arg in opts.arguments)
+				args_val.add_object (new NSString (arg));
+
+			var env_val = new NSDictionary ();
+			foreach (unowned string entry in opts.environment) {
+				string[] tokens = entry.split ("=", 2);
+				if (tokens.length != 2)
+					throw new Error.INVALID_ARGUMENT ("Invalid environment variable entry: %s", entry);
+				env_val.set_value (tokens[0], new NSString (tokens[1]));
+			}
+
+			var opts_val = new NSDictionary ();
+			opts_val.set_value ("StartSuspendedKey", new NSNumber.from_boolean (opts.launch_mode == SUSPENDED));
+			opts_val.set_value ("KillExisting", new NSNumber.from_boolean (opts.existing_instance_policy == KILL));
+			// TODO: Support CaptureOutput + iODestinationKey
+
+			var dtx_args = new DTXArgumentListBuilder ()
+				.append_object (new NSString (""))
+				.append_object (new NSString (bundle_id))
+				.append_object (env_val)
+				.append_object (args_val)
+				.append_object (opts_val);
+			var response = yield channel.invoke (
+				"launchSuspendedProcessWithDevicePath:bundleIdentifier:environment:arguments:options:",
+				dtx_args, cancellable);
+
+			NSNumber? pid = response as NSNumber;
+			if (pid == null)
+				throw new Error.PROTOCOL ("Malformed response");
+
+			return (uint) pid.integer;
+		}
+
 		public async void kill (uint pid, Cancellable? cancellable = null) throws Error, IOError {
 			var args = new DTXArgumentListBuilder ()
 				.append_object (new NSNumber.from_integer (pid));
 			yield channel.invoke ("killPid:", args, cancellable);
 		}
+
+		public async void send_signal (uint pid, uint sig, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (new NSNumber.from_integer (sig))
+				.append_object (new NSNumber.from_integer (pid));
+			yield channel.invoke ("sendSignal:toPid:", args, cancellable);
+		}
+
+		private void on_invocation (string method_name, DTXArgumentList args, DTXMessageTransportFlags transport_flags) {
+			if (method_name == "processWithPID:terminatedWithExitCode:orCrashingSignal:") {
+				if (args.elements.length != 3)
+					return;
+
+				uint pid;
+				if (!try_parse_int (args.elements[0], out pid))
+					return;
+
+				int exit_code = -1;
+				int crashing_signal = -1;
+				if (!try_parse_int (args.elements[1], out exit_code)) {
+					if (!try_parse_int (args.elements[2], out crashing_signal))
+						return;
+				}
+
+				process_terminated (pid, exit_code, crashing_signal);
+			}
+		}
+
+		private bool try_parse_int (Value v, out int i) {
+			i = -1;
+			if (!v.holds (typeof (NSNumber)))
+				return false;
+			i = (int) ((NSNumber) v.get_object ()).integer;
+			return true;
+		}
+	}
+
+	public sealed class LaunchOptions : Object {
+		public string[] arguments {
+			get;
+			set;
+			default = {};
+		}
+
+		public string[] environment {
+			get;
+			set;
+			default = {};
+		}
+
+		public LaunchMode launch_mode {
+			get;
+			set;
+			default = LaunchMode.NORMAL;
+		}
+
+		public ExistingInstancePolicy existing_instance_policy {
+			get;
+			set;
+			default = ExistingInstancePolicy.KEEP;
+		}
+	}
+
+	public enum LaunchMode {
+		NORMAL,
+		SUSPENDED
+	}
+
+	public enum ExistingInstancePolicy {
+		KEEP,
+		KILL
+	}
+
+	public sealed class CoreProfileService : Object, AsyncInitable {
+		public signal void stackshot (Bytes blob);
+		public signal void kperfdata (Bytes blob);
+
+		public HostChannelProvider channel_provider {
+			get;
+			construct;
+		}
+
+		private DTXChannel channel;
+
+		private CoreProfileService (HostChannelProvider channel_provider) {
+			Object (channel_provider: channel_provider);
+		}
+
+		public static async CoreProfileService open (HostChannelProvider channel_provider, Cancellable? cancellable = null)
+				throws Error, IOError {
+			var service = new CoreProfileService (channel_provider);
+
+			try {
+				yield service.init_async (Priority.DEFAULT, cancellable);
+			} catch (GLib.Error e) {
+				throw_api_error (e);
+			}
+
+			return service;
+		}
+
+		private async bool init_async (int io_priority, Cancellable? cancellable) throws Error, IOError {
+			var connection = yield DTXConnection.obtain (channel_provider, cancellable);
+
+			channel = connection.make_channel ("com.apple.instruments.server.services.coreprofilesessiontap");
+			channel.notification.connect (on_notification);
+			channel.data.connect (on_data);
+
+			return true;
+		}
+
+		public async void set_config (KtraceConfig config, Cancellable? cancellable = null) throws Error, IOError {
+			var args = new DTXArgumentListBuilder ()
+				.append_object (config.encode ());
+			yield channel.invoke ("setConfig:", args, cancellable);
+		}
+
+		public async void start (Cancellable? cancellable = null) throws Error, IOError {
+			yield channel.invoke ("start", null, cancellable);
+		}
+
+		public async void stop (Cancellable? cancellable = null) throws Error, IOError {
+			yield channel.invoke ("stop", null, cancellable);
+		}
+
+		private void on_notification (NSObject obj) {
+			// printerr ("on_notification(): %s\n", obj.to_string ());
+		}
+
+		private void on_data (Bytes blob) {
+			if (Kcdata.is_stackshot (blob))
+				stackshot (blob);
+			else
+				kperfdata (blob);
+		}
+	}
+
+	public abstract class TapConfig : Object {
+		public TapRecordingMode buffer_mode {
+			get {
+				return _buffer_mode;
+			}
+			set {
+				_buffer_mode = value;
+				if (value != POLLED)
+					_polling_interval = 0;
+			}
+		}
+
+		public uint64 polling_interval {
+			get;
+			set;
+			default = 500;
+		}
+
+		public uint64 window_size {
+			get;
+			set;
+			default = 0;
+		}
+
+		public bool spool_to_disk_when_possible {
+			get;
+			set;
+			default = false;
+		}
+
+		public bool discard_heartbeats_when_possible {
+			get;
+			set;
+			default = false;
+		}
+
+		private TapRecordingMode _buffer_mode = POLLED;
+
+		internal virtual NSDictionary encode () {
+			var dict = new NSDictionary ();
+
+			dict.set_value ("bm", new NSNumber.from_integer (_buffer_mode));
+
+			if (_polling_interval != 0)
+				dict.set_value ("ur", new NSNumber.from_integer ((int64) _polling_interval));
+
+			if (_window_size != 0)
+				dict.set_value ("ws", new NSNumber.from_integer ((int64) _window_size));
+
+			if (_spool_to_disk_when_possible)
+				dict.set_value ("s2d", new NSNumber.from_boolean (true));
+
+			if (_discard_heartbeats_when_possible)
+				dict.set_value ("nohb", new NSNumber.from_boolean (true));
+
+			return dict;
+		}
+	}
+
+	public enum TapRecordingMode {
+		POLLED,
+		IMMEDIATE,
+		WINDOWED,
+	}
+
+	public sealed class KtraceConfig : TapConfig {
+		public bool can_use_raw_ktrace_file {
+			get;
+			set;
+			default = false;
+		}
+
+		public KtraceRecordingPriority recording_priority {
+			get;
+			set;
+			default = FOREGROUND;
+		}
+
+		public uint collection_interval {
+			get;
+			set;
+			default = 0;
+		}
+
+		public uint64 buffer_size_override {
+			get;
+			set;
+			default = 0;
+		}
+
+		public uint64 buffer_size_override_clamping {
+			get;
+			set;
+			default = 0;
+		}
+
+		public NSDictionary? provider_options {
+			get;
+			set;
+			default = null;
+		}
+
+		private Gee.List<KtraceTapTriggerConfig> trigger_configs = new Gee.ArrayList<KtraceTapTriggerConfig> ();
+
+		public void add_trigger_config (KtraceTapTriggerConfig tc) {
+			trigger_configs.add (tc);
+		}
+
+		internal override NSDictionary encode () {
+			var dict = base.encode ();
+
+			if (can_use_raw_ktrace_file)
+				dict.set_value ("curkt", new NSNumber.from_boolean (true));
+
+			dict.set_value ("rp", new NSNumber.from_integer (_recording_priority));
+
+			if (_collection_interval != 0)
+				dict.set_value ("kco", new NSNumber.from_integer (_collection_interval));
+
+			if (_buffer_size_override != 0)
+				dict.set_value ("bso", new NSNumber.from_integer ((int64) _buffer_size_override));
+
+			if (_buffer_size_override_clamping != 0)
+				dict.set_value ("bsoc", new NSNumber.from_integer ((int64) _buffer_size_override_clamping));
+
+			if (_provider_options != null)
+				dict.set_value ("po", _provider_options);
+
+			var tc = new NSArray ();
+			foreach (var cfg in trigger_configs)
+				tc.add_object (cfg.encode ());
+			dict.set_value ("tc", tc);
+
+			return dict;
+		}
+	}
+
+	public enum KtraceRecordingPriority {
+		BACKGROUND = 10,
+		FOREGROUND = 100,
+	}
+
+	public sealed class KtraceTapTriggerConfig : Object {
+		public KtraceTapTriggerKind kind {
+			get;
+			construct;
+		}
+
+		public KdebugCodeSet? filter {
+			get;
+			set;
+		}
+
+		public bool is_all_processes {
+			get {
+				return included_pids == null;
+			}
+			set {
+				if (value)
+					included_pids = null;
+				else
+					ensure_included_pids ();
+			}
+		}
+
+		public uint callstack_frame_depth {
+			get;
+			set;
+			default = 0;
+		}
+
+		public KtraceTapActions actions {
+			get;
+			default = new KtraceTapActions ();
+		}
+
+		private Gee.Set<uint>? included_pids = null;
+
+		public KtraceTapTriggerConfig (KtraceTapTriggerKind kind) {
+			Object (kind: kind);
+		}
+
+		public void include_pid (uint pid) {
+			ensure_included_pids ().add (pid);
+		}
+
+		private unowned Gee.Set<uint> ensure_included_pids () {
+			if (included_pids == null)
+				included_pids = new Gee.HashSet<uint> ();
+			return included_pids;
+		}
+
+		internal NSDictionary encode () {
+			var dict = new NSDictionary ();
+
+			dict.set_value ("uuid", new NSString (Uuid.string_random ().up ()));
+
+			dict.set_value ("tk", new NSNumber.from_integer (_kind));
+
+			if (_filter != null) {
+				dict.set_value ("kdf", new NSString (_filter.legacy_xml));
+				dict.set_value ("kdf2", _filter.kdebug_codes);
+			}
+
+			if (included_pids != null) {
+				var pf = new NSArray ();
+				foreach (var pid in included_pids)
+					pf.add_object (new NSNumber.from_integer (pid));
+				dict.set_value ("pf", pf);
+			}
+
+			if (_callstack_frame_depth != 0)
+				dict.set_value ("csd", new NSNumber.from_integer (_callstack_frame_depth));
+
+			var actions = _actions.items;
+			if (!actions.is_empty) {
+				var arr = new NSArray ();
+				foreach (var action in actions)
+					arr.add_object (action.encode ());
+				dict.set_value ("ta", arr);
+			}
+
+			return dict;
+		}
+	}
+
+	public enum KtraceTapTriggerKind {
+		TIME = 1,
+		PMI,
+		KDEBUG,
+	}
+
+	public sealed class KtraceTapActions : Object {
+		internal Gee.List<KtraceTapAction> items = new Gee.ArrayList<KtraceTapAction> ();
+
+		public unowned KtraceTapActions add (KtraceTapAction action) {
+			items.add (action);
+			return this;
+		}
+
+		public unowned KtraceTapActions add_stack_collection (KtraceTapStackCollectionMode mode) {
+			items.add (new KtraceTapStackCollectionAction (mode));
+			return this;
+		}
+
+		public unowned KtraceTapActions add_baseline () {
+			items.add (new KtraceTapAction0 ());
+			items.add (new KtraceTapAction2 ());
+			return this;
+		}
+
+		public unowned KtraceTapActions add_pmc_event (string event_name, string counter_name, uint32 extra = 0) {
+			items.add (new KtraceTapAddPmcEventAction (event_name, counter_name, extra));
+			return this;
+		}
+
+		public unowned KtraceTapActions add_kdebug_codeset (KdebugCodeSet codeset) {
+			items.add (new KtraceTapAddKdebugCodeSetAction (codeset.kdebug_codes));
+			return this;
+		}
+
+		public unowned KtraceTapActions add_kdebug_legacy_backtrace_filter () {
+			items.add (new KtraceTapKdebugBacktraceFilterAction ());
+			return this;
+		}
+	}
+
+	public enum KtraceTapActionKind {
+		ACTION0,
+		STACK_COLLECTION,
+		ACTION2,
+		KDEBUG_BACKTRACE_FILTER,
+		ADD_PMC_EVENT,
+		ADD_KDEBUG_CODESET,
+	}
+
+	public abstract class KtraceTapAction : Object {
+		public abstract KtraceTapActionKind kind {
+			get;
+		}
+
+		internal abstract NSArray encode ();
+	}
+
+	public sealed class KtraceTapAction0 : KtraceTapAction {
+		public override KtraceTapActionKind kind {
+			get {
+				return ACTION0;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			return a;
+		}
+	}
+
+	public sealed class KtraceTapAction2 : KtraceTapAction {
+		public override KtraceTapActionKind kind {
+			get {
+				return ACTION2;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			return a;
+		}
+	}
+
+	public sealed class KtraceTapStackCollectionAction : KtraceTapAction {
+		public KtraceTapStackCollectionMode mode {
+			get {
+				return _mode;
+			}
+			set {
+				_mode = value;
+			}
+		}
+
+		private KtraceTapStackCollectionMode _mode;
+
+		public KtraceTapStackCollectionAction (KtraceTapStackCollectionMode mode) {
+			_mode = mode;
+		}
+
+		public override KtraceTapActionKind kind {
+			get {
+				return STACK_COLLECTION;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			a.add_object (new NSNumber.from_boolean ((_mode & KtraceTapStackCollectionMode.USER) != 0));
+			a.add_object (new NSNumber.from_boolean ((_mode & KtraceTapStackCollectionMode.KERNEL) != 0));
+			return a;
+		}
+	}
+
+	[Flags]
+	public enum KtraceTapStackCollectionMode {
+		NONE   = 0,
+		USER   = (1 << 0),
+		KERNEL = (1 << 1),
+	}
+
+	public sealed class KtraceTapKdebugBacktraceFilterAction : KtraceTapAction {
+		public override KtraceTapActionKind kind {
+			get {
+				return KDEBUG_BACKTRACE_FILTER;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			return a;
+		}
+	}
+
+	public sealed class KtraceTapAddPmcEventAction : KtraceTapAction {
+		public string event_name {
+			get {
+				return _event_name;
+			}
+			set {
+				_event_name = value;
+			}
+		}
+
+		public string counter_name {
+			get {
+				return _counter_name;
+			}
+			set {
+				_counter_name = value;
+			}
+		}
+
+		public uint32 extra {
+			get {
+				return _extra;
+			}
+			set {
+				_extra = value;
+			}
+		}
+
+		private string _event_name;
+		private string _counter_name;
+		private uint32 _extra;
+
+		public KtraceTapAddPmcEventAction (string event_name, string counter_name, uint32 extra = 0) {
+			_event_name = event_name;
+			_counter_name = counter_name;
+			_extra = extra;
+		}
+
+		public override KtraceTapActionKind kind {
+			get {
+				return ADD_PMC_EVENT;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			a.add_object (new NSString (_event_name));
+			a.add_object (new NSString (_counter_name));
+			a.add_object (new NSNumber.from_integer (_extra));
+			return a;
+		}
+	}
+
+	public sealed class KtraceTapAddKdebugCodeSetAction : KtraceTapAction {
+		public NSSet codes {
+			get {
+				return _codes;
+			}
+			set {
+				_codes = value;
+			}
+		}
+
+		private NSSet _codes;
+
+		public KtraceTapAddKdebugCodeSetAction (NSSet codes) {
+			_codes = codes;
+		}
+
+		public override KtraceTapActionKind kind {
+			get {
+				return ADD_KDEBUG_CODESET;
+			}
+		}
+
+		internal override NSArray encode () {
+			var a = new NSArray ();
+			a.add_object (new NSNumber.from_integer (kind));
+			a.add_object (_codes);
+			return a;
+		}
+	}
+
+	public sealed class KdebugCodeSet : Object {
+		public string legacy_xml {
+			owned get {
+				var xml = new StringBuilder.sized (256);
+				xml.append ("<events>");
+
+				foreach (var c in codes) {
+					var kc = KdebugCode (c);
+
+					xml.append ("<event type=\"KDebug\" class=\"");
+
+					var klass = kc.klass;
+					if (klass == ANY)
+						xml.append_c ('*');
+					else
+						xml.append_printf ("%u", klass);
+
+					xml.append ("\" subclass=\"");
+
+					var subclass = kc.subclass;
+					if (subclass == KDEBUG_SUBCLASS_ANY)
+						xml.append_c ('*');
+					else
+						xml.append_printf ("%u", subclass);
+
+					xml.append ("\" code=\"");
+
+					uint code = kc.code;
+					if (code == KDEBUG_CODE_ANY)
+						xml.append_c ('*');
+					else
+						xml.append_printf ("%u", code);
+
+					xml.append ("\"/>");
+				}
+
+				xml.append ("</events>");
+
+				return xml.str;
+			}
+		}
+
+		public NSSet kdebug_codes {
+			get {
+				if (_kdebug_codes == null) {
+					_kdebug_codes = new NSSet ();
+					foreach (var c in codes)
+						_kdebug_codes.add_object (new NSNumber.from_integer (c));
+				}
+				return _kdebug_codes;
+			}
+		}
+
+		private Gee.Set<uint> codes = new Gee.HashSet<uint> ();
+		private NSSet _kdebug_codes = null;
+
+		public KdebugCodeSet copy () {
+			var s = new KdebugCodeSet ();
+			s.codes.add_all (codes);
+			s._kdebug_codes = _kdebug_codes;
+			return s;
+		}
+
+		public unowned KdebugCodeSet add (KdebugCode code) {
+			codes.add (code.raw);
+			_kdebug_codes = null;
+			return this;
+		}
 	}
 
 	public sealed class DTXConnection : Object, DTXTransport {
@@ -373,7 +1120,6 @@ namespace Frida.Fruity {
 
 		private Gee.HashMap<uint32, Gee.ArrayList<Fragment>> fragments = new Gee.HashMap<uint32, Gee.ArrayList<Fragment>> ();
 		private uint32 next_fragment_identifier = 1;
-		private size_t total_buffered = 0;
 		private Gee.ArrayQueue<Bytes> pending_writes = new Gee.ArrayQueue<Bytes> ();
 
 		private DTXControlChannel control_channel;
@@ -381,8 +1127,6 @@ namespace Frida.Fruity {
 		private int32 next_channel_code = 1;
 
 		private const uint32 DTX_FRAGMENT_MAGIC = 0x1f3d5b79U;
-		private const uint MAX_BUFFERED_COUNT = 100;
-		private const size_t MAX_BUFFERED_SIZE = 30 * 1024 * 1024;
 		private const size_t MAX_MESSAGE_SIZE = 128 * 1024 * 1024;
 		private const size_t MAX_FRAGMENT_SIZE = 128 * 1024;
 		private const string REMOTESERVER_ENDPOINT_17PLUS = "lockdown:com.apple.instruments.dtservicehub";
@@ -566,8 +1310,6 @@ namespace Frida.Fruity {
 
 					Gee.ArrayList<Fragment> entries = fragments[fragment.identifier];
 					if (entries == null) {
-						if (fragments.size == MAX_BUFFERED_COUNT)
-							throw new Error.PROTOCOL ("Total buffered count exceeds maximum");
 						if (fragment.index != 0)
 							throw new Error.PROTOCOL ("Expected first fragment to have index of zero");
 						fragment.data_size = 0;
@@ -585,10 +1327,6 @@ namespace Frida.Fruity {
 						first_fragment.data_size += (uint32) size;
 						if (first_fragment.data_size > MAX_MESSAGE_SIZE)
 							throw new Error.PROTOCOL ("Message size exceeds maximum");
-
-						total_buffered += size;
-						if (total_buffered > MAX_BUFFERED_SIZE)
-							throw new Error.PROTOCOL ("Total buffered size exceeds maximum");
 					}
 
 					if (entries.size == fragment.count) {
@@ -614,7 +1352,6 @@ namespace Frida.Fruity {
 						}
 
 						fragments.unset (fragment.identifier);
-						total_buffered -= message.length;
 
 						process_message (message, first_fragment);
 					}
@@ -714,33 +1451,37 @@ namespace Frida.Fruity {
 			message.payload_data = raw_message[payload_start_offset:payload_end_offset];
 
 			int32 channel_code = message.channel_code;
-			bool is_notification = false;
-			if (message.type == INVOKE) {
+			if ((message.conversation_index % 2) == 0)
 				channel_code = -channel_code;
-			} else if (message.type == RESULT && channel_code < 0) {
-				channel_code = -channel_code;
-				is_notification = true;
-			}
+
+			bool is_notification = message.conversation_index == 0;
 
 			var channel = channels[channel_code];
 			if (channel == null)
 				return;
 
 			switch (message.type) {
-				case INVOKE:
-					channel.handle_invoke (message);
+				case DISPATCH:
+					channel.handle_dispatch (message);
 					break;
 				case OK:
-				case RESULT:
+				case OBJECT:
 				case ERROR:
 					if (is_notification)
 						channel.handle_notification (message);
 					else
 						channel.handle_response (message);
 					break;
+				case DATA:
+					channel.handle_data (message);
+					break;
 				case BARRIER:
 					channel.handle_barrier (message);
 					break;
+				case PRIMITIVE:
+				case COMPRESSED:
+				case PROXIED_MESSAGE:
+					throw new Error.PROTOCOL ("Unsupported message type: %s", message.type.to_string ());
 			}
 		}
 
@@ -855,7 +1596,8 @@ namespace Frida.Fruity {
 		public void notify_of_published_capabilities () throws Error {
 			var capabilities = new NSDictionary ();
 			capabilities.set_value ("com.apple.private.DTXConnection", new NSNumber.from_integer (1));
-			capabilities.set_value ("com.apple.private.DTXBlockCompression", new NSNumber.from_integer (2));
+			capabilities.set_value ("com.apple.instruments.client.processcontrol.capability.terminationCallback",
+				new NSNumber.from_integer (1));
 
 			var args = new DTXArgumentListBuilder ()
 				.append_object (capabilities);
@@ -879,6 +1621,7 @@ namespace Frida.Fruity {
 	public class DTXChannel : Object {
 		public signal void invocation (string method_name, DTXArgumentList args, DTXMessageTransportFlags transport_flags);
 		public signal void notification (NSObject obj);
+		public signal void data (Bytes blob);
 		public signal void barrier ();
 
 		public int32 code {
@@ -935,7 +1678,7 @@ namespace Frida.Fruity {
 			check_open ();
 
 			var message = DTXMessage ();
-			message.type = INVOKE;
+			message.type = DISPATCH;
 			message.channel_code = code;
 			message.transport_flags = EXPECTS_REPLY;
 
@@ -965,7 +1708,7 @@ namespace Frida.Fruity {
 			check_open ();
 
 			var message = DTXMessage ();
-			message.type = INVOKE;
+			message.type = DISPATCH;
 			message.channel_code = code;
 			message.transport_flags = NONE;
 
@@ -982,10 +1725,10 @@ namespace Frida.Fruity {
 			transport.send_message (message, out identifier);
 		}
 
-		internal void handle_invoke (DTXMessage message) throws Error {
+		internal void handle_dispatch (DTXMessage message) throws Error {
 			NSString? method_name = NSKeyedArchive.decode (message.payload_data) as NSString;
 			if (method_name == null)
-				throw new Error.PROTOCOL ("Malformed invocation payload");
+				throw new Error.PROTOCOL ("Malformed dispatch payload");
 
 			var args = DTXArgumentList.parse (message.aux_data);
 
@@ -999,7 +1742,7 @@ namespace Frida.Fruity {
 					case OK:
 						request.resolve (null);
 						break;
-					case RESULT:
+					case OBJECT:
 						request.resolve (NSKeyedArchive.decode (message.payload_data));
 						break;
 					case ERROR: {
@@ -1037,6 +1780,10 @@ namespace Frida.Fruity {
 			notification (payload);
 		}
 
+		internal void handle_data (DTXMessage message) throws Error {
+			data (new Bytes (message.payload_data));
+		}
+
 		internal void handle_barrier (DTXMessage message) throws Error {
 			barrier ();
 		}
@@ -1053,11 +1800,15 @@ namespace Frida.Fruity {
 	}
 
 	public enum DTXMessageType {
-		OK = 0,
-		INVOKE = 2,
-		RESULT = 3,
-		ERROR = 4,
-		BARRIER = 5
+		OK,
+		DATA,
+		DISPATCH,
+		OBJECT,
+		ERROR,
+		BARRIER,
+		PRIMITIVE,
+		COMPRESSED,
+		PROXIED_MESSAGE,
 	}
 
 	public struct DTXMessage {
@@ -1111,6 +1862,12 @@ namespace Frida.Fruity {
 					}
 					case BUFFER: {
 						size_t size = reader.read_uint32 ();
+						if (size == 0) {
+							var gval = Value (typeof (NSObject));
+							elements += (owned) gval;
+							break;
+						}
+
 						unowned uint8[] buf = reader.read_byte_array (size);
 
 						NSObject? obj = NSKeyedArchive.decode (buf);

src/fruity/injector.vala

@@ -186,8 +186,14 @@ namespace Frida.Fruity.Injector {
 		}
 
 		private async void teardown (Cancellable? cancellable) throws GLib.Error {
-			yield lldb.deallocate (scratch_page, cancellable);
-			yield lldb.deallocate (jit_page, cancellable);
+			try {
+				yield lldb.deallocate (scratch_page, cancellable);
+			} catch (Error e) {
+			}
+			try {
+				yield lldb.deallocate (jit_page, cancellable);
+			} catch (Error e) {
+			}
 
 			yield restore_main_thread_state (cancellable);
 		}
@@ -893,11 +899,14 @@ namespace Frida.Fruity.Injector {
 			uint64 initializer = (notify_objc_init != null) ? notify_objc_init : libdyld_initialize;
 			GDB.Breakpoint init_breakpoint = yield lldb.add_breakpoint (SOFT, initializer, 4, cancellable);
 			GDB.Breakpoint? restart_breakpoint = null;
-			uint64? restart_with_dyld_in_cache = dyld_symbols["__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN6mach_o6HeaderEPK15DyldSharedCachePv"];
-			if (restart_with_dyld_in_cache == null)
-				restart_with_dyld_in_cache = dyld_symbols["__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN5dyld39MachOFileEPK15DyldSharedCachePv"];
-			if (restart_with_dyld_in_cache == null)
-				restart_with_dyld_in_cache = dyld_symbols["__ZN5dyld422restartWithDyldInCacheEPKNS_10KernelArgsEPKN5dyld39MachOFileEPv"];
+
+			uint64? restart_with_dyld_in_cache = null;
+			foreach (var e in dyld_symbols.entries) {
+				if (e.key.contains ("restartWithDyldInCache")) {
+					restart_with_dyld_in_cache = e.value;
+					break;
+				}
+			}
 			if (restart_with_dyld_in_cache != null)
 				restart_breakpoint = yield lldb.add_breakpoint (SOFT, restart_with_dyld_in_cache, 4, cancellable);
 
@@ -1374,8 +1383,12 @@ namespace Frida.Fruity.Injector {
 				}
 			}
 
-			if (state != scratch_page)
-				yield lldb.deallocate (state, cancellable);
+			if (state != scratch_page) {
+				try {
+					yield lldb.deallocate (state, cancellable);
+				} catch (Error e) {
+				}
+			}
 
 			return new SymbolSet (symbols);
 		}

src/fruity/kcdata.vala

@@ -0,0 +1,558 @@
+[CCode (gir_namespace = "FridaFruity", gir_version = "1.0")]
+namespace Frida.Fruity.Kcdata {
+	public struct ItemHeader {
+		public ItemType type;
+		public uint32 size;
+		public uint64 flags;
+	}
+
+	public enum ItemType {
+		INVALID							= 0x000u,
+		STRING_DESC						= 0x001u,
+		UINT32_DESC						= 0x002u,
+		UINT64_DESC						= 0x003u,
+		INT32_DESC						= 0x004u,
+		INT64_DESC						= 0x005u,
+		BINDATA_DESC						= 0x006u,
+
+		ARRAY							= 0x011u,
+		TYPEDEFINTION						= 0x012u,
+		CONTAINER_BEGIN						= 0x013u,
+		CONTAINER_END						= 0x014u,
+
+		ARRAY_PAD0						= 0x020u,
+		ARRAY_PAD1						= 0x021u,
+		ARRAY_PAD2						= 0x022u,
+		ARRAY_PAD3						= 0x023u,
+		ARRAY_PAD4						= 0x024u,
+		ARRAY_PAD5						= 0x025u,
+		ARRAY_PAD6						= 0x026u,
+		ARRAY_PAD7						= 0x027u,
+		ARRAY_PAD8						= 0x028u,
+		ARRAY_PAD9						= 0x029u,
+		ARRAY_PADa						= 0x02au,
+		ARRAY_PADb						= 0x02bu,
+		ARRAY_PADc						= 0x02cu,
+		ARRAY_PADd						= 0x02du,
+		ARRAY_PADe						= 0x02eu,
+		ARRAY_PADf						= 0x02fu,
+
+		LIBRARY_LOADINFO					= 0x030u,
+		LIBRARY_LOADINFO64					= 0x031u,
+		TIMEBASE						= 0x032u,
+		MACH_ABSOLUTE_TIME					= 0x033u,
+		TIMEVAL							= 0x034u,
+		USECS_SINCE_EPOCH					= 0x035u,
+		PID							= 0x036u,
+		PROCNAME						= 0x037u,
+		NESTED_KCDATA						= 0x038u,
+		LIBRARY_AOTINFO						= 0x039u,
+
+		TASK_CRASHINFO_EXTMODINFO				= 0x801u,
+		TASK_CRASHINFO_BSDINFOWITHUNIQID			= 0x802u,
+		TASK_CRASHINFO_TASKDYLD_INFO				= 0x803u,
+		TASK_CRASHINFO_UUID					= 0x804u,
+		TASK_CRASHINFO_PID					= 0x805u,
+		TASK_CRASHINFO_PPID					= 0x806u,
+		TASK_CRASHINFO_RUSAGE					= 0x807u,
+		TASK_CRASHINFO_RUSAGE_INFO				= 0x808u,
+		TASK_CRASHINFO_PROC_NAME				= 0x809u,
+		TASK_CRASHINFO_PROC_STARTTIME				= 0x80Bu,
+		TASK_CRASHINFO_USERSTACK				= 0x80Cu,
+		TASK_CRASHINFO_ARGSLEN					= 0x80Du,
+		TASK_CRASHINFO_EXCEPTION_CODES				= 0x80Eu,
+		TASK_CRASHINFO_PROC_PATH				= 0x80Fu,
+		TASK_CRASHINFO_PROC_CSFLAGS				= 0x810u,
+		TASK_CRASHINFO_PROC_STATUS				= 0x811u,
+		TASK_CRASHINFO_UID					= 0x812u,
+		TASK_CRASHINFO_GID					= 0x813u,
+		TASK_CRASHINFO_PROC_ARGC				= 0x814u,
+		TASK_CRASHINFO_PROC_FLAGS				= 0x815u,
+		TASK_CRASHINFO_CPUTYPE					= 0x816u,
+		TASK_CRASHINFO_WORKQUEUEINFO				= 0x817u,
+		TASK_CRASHINFO_RESPONSIBLE_PID				= 0x818u,
+		TASK_CRASHINFO_DIRTY_FLAGS				= 0x819u,
+		TASK_CRASHINFO_CRASHED_THREADID				= 0x81Au,
+		TASK_CRASHINFO_COALITION_ID				= 0x81Bu,
+		TASK_CRASHINFO_UDATA_PTRS				= 0x81Cu,
+		TASK_CRASHINFO_MEMORY_LIMIT				= 0x81Du,
+		TASK_CRASHINFO_LEDGER_INTERNAL				= 0x81Eu,
+		TASK_CRASHINFO_LEDGER_INTERNAL_COMPRESSED		= 0x81Fu,
+		TASK_CRASHINFO_LEDGER_IOKIT_MAPPED			= 0x820u,
+		TASK_CRASHINFO_LEDGER_ALTERNATE_ACCOUNTING		= 0x821u,
+		TASK_CRASHINFO_LEDGER_ALTERNATE_ACCOUNTING_COMPRESSED	= 0x822u,
+		TASK_CRASHINFO_LEDGER_PURGEABLE_NONVOLATILE		= 0x823u,
+		TASK_CRASHINFO_LEDGER_PURGEABLE_NONVOLATILE_COMPRESSED	= 0x824u,
+		TASK_CRASHINFO_LEDGER_PAGE_TABLE			= 0x825u,
+		TASK_CRASHINFO_LEDGER_PHYS_FOOTPRINT			= 0x826u,
+		TASK_CRASHINFO_LEDGER_PHYS_FOOTPRINT_LIFETIME_MAX	= 0x827u,
+		TASK_CRASHINFO_LEDGER_NETWORK_NONVOLATILE		= 0x828u,
+		TASK_CRASHINFO_LEDGER_NETWORK_NONVOLATILE_COMPRESSED	= 0x829u,
+		TASK_CRASHINFO_LEDGER_WIRED_MEM				= 0x82Au,
+		TASK_CRASHINFO_PROC_PERSONA_ID				= 0x82Bu,
+		TASK_CRASHINFO_MEMORY_LIMIT_INCREASE			= 0x82Cu,
+		TASK_CRASHINFO_LEDGER_TAGGED_FOOTPRINT			= 0x82Du,
+		TASK_CRASHINFO_LEDGER_TAGGED_FOOTPRINT_COMPRESSED	= 0x82Eu,
+		TASK_CRASHINFO_LEDGER_MEDIA_FOOTPRINT			= 0x82Fu,
+		TASK_CRASHINFO_LEDGER_MEDIA_FOOTPRINT_COMPRESSED	= 0x830u,
+		TASK_CRASHINFO_LEDGER_GRAPHICS_FOOTPRINT		= 0x831u,
+		TASK_CRASHINFO_LEDGER_GRAPHICS_FOOTPRINT_COMPRESSED	= 0x832u,
+		TASK_CRASHINFO_LEDGER_NEURAL_FOOTPRINT			= 0x833u,
+		TASK_CRASHINFO_LEDGER_NEURAL_FOOTPRINT_COMPRESSED	= 0x834u,
+		TASK_CRASHINFO_MEMORYSTATUS_EFFECTIVE_PRIORITY		= 0x835u,
+		TASK_CRASHINFO_KERNEL_TRIAGE_INFO_V1			= 0x836u,
+		TASK_CRASHINFO_TASK_IS_CORPSE_FORK			= 0x837u,
+		TASK_CRASHINFO_EXCEPTION_TYPE				= 0x838u,
+		TASK_CRASHINFO_CRASH_COUNT				= 0x839u,
+		TASK_CRASHINFO_THROTTLE_TIMEOUT				= 0x83Au,
+		TASK_CRASHINFO_CS_SIGNING_ID				= 0x83Bu,
+		TASK_CRASHINFO_CS_TEAM_ID				= 0x83Cu,
+		TASK_CRASHINFO_CS_VALIDATION_CATEGORY			= 0x83Du,
+		TASK_CRASHINFO_CS_TRUST_LEVEL				= 0x83Eu,
+		TASK_CRASHINFO_PROC_CPUTYPE				= 0x83Fu,
+		TASK_CRASHINFO_JIT_ADDRESS_RANGE			= 0x840u,
+		TASK_CRASHINFO_MB					= 0x841u,
+		TASK_CRASHINFO_CS_AUXILIARY_INFO			= 0x842u,
+		TASK_CRASHINFO_RLIM_CORE				= 0x843u,
+		TASK_CRASHINFO_CORE_ALLOWED				= 0x844u,
+		TASK_CRASHINFO_TASK_SECURITY_CONFIG			= 0x845u,
+
+		STACKSHOT_IOSTATS					= 0x901u,
+		STACKSHOT_GLOBAL_MEM_STATS				= 0x902u,
+		STACKSHOT_CONTAINER_TASK				= 0x903u,
+		STACKSHOT_CONTAINER_THREAD				= 0x904u,
+		STACKSHOT_TASK_SNAPSHOT					= 0x905u,
+		STACKSHOT_THREAD_SNAPSHOT				= 0x906u,
+		STACKSHOT_DONATING_PIDS					= 0x907u,
+		STACKSHOT_SHAREDCACHE_LOADINFO				= 0x908u,
+		STACKSHOT_THREAD_NAME					= 0x909u,
+		STACKSHOT_KERN_STACKFRAME				= 0x90Au,
+		STACKSHOT_KERN_STACKFRAME64				= 0x90Bu,
+		STACKSHOT_USER_STACKFRAME				= 0x90Cu,
+		STACKSHOT_USER_STACKFRAME64				= 0x90Du,
+		STACKSHOT_BOOTARGS					= 0x90Eu,
+		STACKSHOT_OSVERSION					= 0x90Fu,
+		STACKSHOT_KERN_PAGE_SIZE				= 0x910u,
+		STACKSHOT_JETSAM_LEVEL					= 0x911u,
+		STACKSHOT_DELTA_SINCE_TIMESTAMP				= 0x912u,
+		STACKSHOT_KERN_STACKLR					= 0x913u,
+		STACKSHOT_KERN_STACKLR64				= 0x914u,
+		STACKSHOT_USER_STACKLR					= 0x915u,
+		STACKSHOT_USER_STACKLR64				= 0x916u,
+		STACKSHOT_NONRUNNABLE_TIDS				= 0x917u,
+		STACKSHOT_NONRUNNABLE_TASKS				= 0x918u,
+		STACKSHOT_CPU_TIMES					= 0x919u,
+		STACKSHOT_STACKSHOT_DURATION				= 0x91au,
+		STACKSHOT_STACKSHOT_FAULT_STATS				= 0x91bu,
+		STACKSHOT_KERNELCACHE_LOADINFO				= 0x91cu,
+		STACKSHOT_THREAD_WAITINFO				= 0x91du,
+		STACKSHOT_THREAD_GROUP_SNAPSHOT				= 0x91eu,
+		STACKSHOT_THREAD_GROUP					= 0x91fu,
+		STACKSHOT_JETSAM_COALITION_SNAPSHOT			= 0x920u,
+		STACKSHOT_JETSAM_COALITION				= 0x921u,
+		STACKSHOT_THREAD_POLICY_VERSION				= 0x922u,
+		STACKSHOT_INSTRS_CYCLES					= 0x923u,
+		STACKSHOT_USER_STACKTOP					= 0x924u,
+		STACKSHOT_ASID						= 0x925u,
+		STACKSHOT_PAGE_TABLES					= 0x926u,
+		STACKSHOT_SYS_SHAREDCACHE_LAYOUT			= 0x927u,
+		STACKSHOT_THREAD_DISPATCH_QUEUE_LABEL			= 0x928u,
+		STACKSHOT_THREAD_TURNSTILEINFO				= 0x929u,
+		STACKSHOT_TASK_CPU_ARCHITECTURE				= 0x92au,
+		STACKSHOT_LATENCY_INFO					= 0x92bu,
+		STACKSHOT_LATENCY_INFO_TASK				= 0x92cu,
+		STACKSHOT_LATENCY_INFO_THREAD				= 0x92du,
+		STACKSHOT_LOADINFO64_TEXT_EXEC				= 0x92eu,
+		STACKSHOT_AOTCACHE_LOADINFO				= 0x92fu,
+		STACKSHOT_TRANSITIONING_TASK_SNAPSHOT			= 0x930u,
+		STACKSHOT_CONTAINER_TRANSITIONING_TASK			= 0x931u,
+		STACKSHOT_USER_ASYNC_START_INDEX			= 0x932u,
+		STACKSHOT_USER_ASYNC_STACKLR64				= 0x933u,
+		STACKSHOT_CONTAINER_PORTLABEL				= 0x934u,
+		STACKSHOT_PORTLABEL					= 0x935u,
+		STACKSHOT_PORTLABEL_NAME				= 0x936u,
+		STACKSHOT_DYLD_COMPACTINFO				= 0x937u,
+		STACKSHOT_SUSPENSION_INFO				= 0x938u,
+		STACKSHOT_SUSPENSION_SOURCE				= 0x939u,
+		STACKSHOT_TASK_DELTA_SNAPSHOT				= 0x940u,
+		STACKSHOT_THREAD_DELTA_SNAPSHOT				= 0x941u,
+		STACKSHOT_CONTAINER_SHAREDCACHE				= 0x942u,
+		STACKSHOT_SHAREDCACHE_INFO				= 0x943u,
+		STACKSHOT_SHAREDCACHE_AOTINFO				= 0x944u,
+		STACKSHOT_SHAREDCACHE_ID				= 0x945u,
+		STACKSHOT_CODESIGNING_INFO				= 0x946u,
+		STACKSHOT_OS_BUILD_VERSION				= 0x947u,
+		STACKSHOT_KERN_EXCLAVES_THREADINFO			= 0x948u,
+		STACKSHOT_CONTAINER_EXCLAVES				= 0x949u,
+		STACKSHOT_CONTAINER_EXCLAVE_SCRESULT			= 0x94au,
+		STACKSHOT_EXCLAVE_SCRESULT_INFO				= 0x94bu,
+		STACKSHOT_CONTAINER_EXCLAVE_IPCSTACKENTRY		= 0x94cu,
+		STACKSHOT_EXCLAVE_IPCSTACKENTRY_INFO			= 0x94du,
+		STACKSHOT_EXCLAVE_IPCSTACKENTRY_ECSTACK			= 0x94eu,
+		STACKSHOT_CONTAINER_EXCLAVE_ADDRESSSPACE		= 0x94fu,
+		STACKSHOT_EXCLAVE_ADDRESSSPACE_INFO			= 0x950u,
+		STACKSHOT_EXCLAVE_ADDRESSSPACE_NAME			= 0x951u,
+		STACKSHOT_CONTAINER_EXCLAVE_TEXTLAYOUT			= 0x952u,
+		STACKSHOT_EXCLAVE_TEXTLAYOUT_INFO			= 0x953u,
+		STACKSHOT_EXCLAVE_TEXTLAYOUT_SEGMENTS			= 0x954u,
+		STACKSHOT_KERN_EXCLAVES_CRASH_THREADINFO		= 0x955u,
+		STACKSHOT_LATENCY_INFO_CPU				= 0x956u,
+		STACKSHOT_TASK_EXEC_META				= 0x957u,
+		STACKSHOT_TASK_MEMORYSTATUS				= 0x958u,
+		STACKSHOT_LATENCY_INFO_BUFFER				= 0x95au,
+
+		TASK_BTINFO_PID						= 0xA01u,
+		TASK_BTINFO_PPID					= 0xA02u,
+		TASK_BTINFO_PROC_NAME					= 0xA03u,
+		TASK_BTINFO_PROC_PATH					= 0xA04u,
+		TASK_BTINFO_UID						= 0xA05u,
+		TASK_BTINFO_GID						= 0xA06u,
+		TASK_BTINFO_PROC_FLAGS					= 0xA07u,
+		TASK_BTINFO_CPUTYPE					= 0xA08u,
+		TASK_BTINFO_EXCEPTION_CODES				= 0xA09u,
+		TASK_BTINFO_EXCEPTION_TYPE				= 0xA0Au,
+		TASK_BTINFO_RUSAGE_INFO					= 0xA0Bu,
+		TASK_BTINFO_COALITION_ID				= 0xA0Cu,
+		TASK_BTINFO_CRASH_COUNT					= 0xA0Du,
+		TASK_BTINFO_THROTTLE_TIMEOUT				= 0xA0Eu,
+		TASK_BTINFO_THREAD_ID					= 0xA20u,
+		TASK_BTINFO_THREAD_NAME					= 0xA21u,
+		TASK_BTINFO_THREAD_STATE				= 0xA22u,
+		TASK_BTINFO_THREAD_EXCEPTION_STATE			= 0xA23u,
+		TASK_BTINFO_BACKTRACE					= 0xA24u,
+		TASK_BTINFO_BACKTRACE64					= 0xA25u,
+		TASK_BTINFO_ASYNC_BACKTRACE64				= 0xA26u,
+		TASK_BTINFO_ASYNC_START_INDEX				= 0xA27u,
+		TASK_BTINFO_PLATFORM					= 0xA28u,
+		TASK_BTINFO_SC_LOADINFO					= 0xA29u,
+		TASK_BTINFO_SC_LOADINFO64				= 0xA2Au,
+		TASK_BTINFO_FLAGS					= 0xAFFu,
+
+		BUFFER_BEGIN_XNUPOST_CONFIG				= 0x1e21c09fu,
+		BUFFER_BEGIN_COMPRESSED					= 0x434f4d50u,
+		BUFFER_BEGIN_BTINFO					= 0x46414E47u,
+		BUFFER_BEGIN_STACKSHOT					= 0x59a25807u,
+		BUFFER_BEGIN_OS_REASON					= 0x53A20900u,
+		BUFFER_BEGIN_DELTA_STACKSHOT				= 0xDE17A59Au,
+		BUFFER_BEGIN_CRASHINFO					= 0xDEADF157u,
+		BUFFER_END						= 0xF19158EDu;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<ItemType> (this);
+		}
+	}
+
+	[Flags]
+	public enum StackshotFlagsLow {
+		GET_DQ                           = (1U << 0),
+		SAVE_LOADINFO                    = (1U << 1),
+		GET_GLOBAL_MEM_STATS             = (1U << 2),
+		SAVE_KEXT_LOADINFO               = (1U << 3),
+		ACTIVE_KERNEL_THREADS_ONLY       = (1U << 8),
+		GET_BOOT_PROFILE                 = (1U << 9),
+		DO_COMPRESS                      = (1U << 10),
+		SAVE_IMP_DONATION_PIDS           = (1U << 13),
+		SAVE_IN_KERNEL_BUFFER            = (1U << 14),
+		RETRIEVE_EXISTING_BUFFER         = (1U << 15),
+		KCDATA_FORMAT                    = (1U << 16),
+		ENABLE_BT_FAULTING               = (1U << 17),
+		COLLECT_DELTA_SNAPSHOT           = (1U << 18),
+		COLLECT_SHAREDCACHE_LAYOUT       = (1U << 19),
+		TRYLOCK                          = (1U << 20),
+		ENABLE_UUID_FAULTING             = (1U << 21),
+		FROM_PANIC                       = (1U << 22),
+		NO_IO_STATS                      = (1U << 23),
+		THREAD_WAITINFO                  = (1U << 24),
+		THREAD_GROUP                     = (1U << 25),
+		SAVE_JETSAM_COALITIONS           = (1U << 26),
+		INSTRS_CYCLES                    = (1U << 27),
+		ASID                             = (1U << 28),
+		PAGE_TABLES                      = (1U << 29),
+		DISABLE_LATENCY_INFO             = (1U << 30),
+		SAVE_DYLD_COMPACTINFO            = (1U << 31)
+	}
+
+	[Flags]
+	public enum StackshotFlagsHigh {
+		INCLUDE_DRIVER_THREADS_IN_KERNEL = (1U << 0),
+		EXCLAVES                         = (1U << 1),
+		SKIP_EXCLAVES                    = (1U << 2),
+	}
+
+	public const size_t TASK_SNAPSHOT_PID_OFFSET = 84;
+
+	public static bool is_stackshot (Bytes bytes) {
+		if (bytes.get_size () < 16)
+			return false;
+
+		var type = (ItemType) uint32.from_little_endian (*((uint32 *) bytes.get_data ()));
+
+		switch (type) {
+			case ItemType.BUFFER_BEGIN_STACKSHOT:
+			case ItemType.BUFFER_BEGIN_DELTA_STACKSHOT:
+			case ItemType.BUFFER_BEGIN_COMPRESSED:
+				return true;
+			default:
+				return false;
+		}
+	}
+
+	public sealed class Reader : Object {
+		private Buffer buf;
+		private BufferReader r;
+
+		private Buffer payload_buf;
+		private BufferReader payload_r;
+
+		private BufferReader scan_r;
+		private Array<uint64> scan_container_ids = new Array<uint64> ();
+
+		[Compact]
+		private struct Scope {
+			public size_t end_item_offset;
+			public uint64 end_id;
+		}
+
+		private Array<Scope> scopes = new Array<Scope> ();
+		private size_t current_end_item_offset;
+
+		private const size_t HEADER_SIZE = 16;
+		private const size_t ALIGNMENT_SIZE = 16;
+
+		public Reader (Bytes bytes) {
+			buf = new Buffer (bytes, LITTLE_ENDIAN);
+			r = new BufferReader (buf);
+
+			payload_buf = new Buffer.from_data ((uint8[]) null, buf.byte_order, buf.pointer_size);
+			payload_r = new BufferReader (payload_buf);
+
+			scan_r = new BufferReader (buf);
+
+			current_end_item_offset = buf.bytes.get_size ();
+		}
+
+		public enum VisitResult {
+			CONTINUE,
+			STOP
+		}
+
+		public VisitResult for_each (ItemVisitor visitor) throws Error {
+			ItemHeader h;
+			unowned BufferReader p;
+
+			while (read_item (out h, out p)) {
+				if (visitor (h, p) == VisitResult.STOP)
+					return VisitResult.STOP;
+			}
+
+			return VisitResult.CONTINUE;
+		}
+
+		public delegate VisitResult ItemVisitor (ItemHeader h, BufferReader payload) throws Error;
+
+		public VisitResult for_each_container (ItemType want_container_type, ScopeVisitor visitor) throws Error {
+			ItemHeader h;
+			unowned BufferReader p;
+
+			while (read_item (out h, out p)) {
+				if (h.type != ItemType.CONTAINER_BEGIN)
+					continue;
+
+				var ctype = (ItemType) p.read_uint32 ();
+				var id = h.flags;
+
+				if (ctype != want_container_type) {
+					skip_container_body (id);
+					continue;
+				}
+
+				enter_container_body (id);
+				var result = visitor (this);
+				leave_container ();
+
+				if (result == VisitResult.STOP)
+					return VisitResult.STOP;
+			}
+
+			return VisitResult.CONTINUE;
+		}
+
+		public delegate VisitResult ScopeVisitor (Reader r) throws Error;
+
+		public unowned BufferReader get_first (ItemType type) throws Error {
+			unowned BufferReader result = null;
+
+			for_each ((h, p) => {
+				if (h.type != type)
+					return VisitResult.CONTINUE;
+
+				result = p;
+				return VisitResult.STOP;
+			});
+
+			if (result == null)
+				throw new Error.PROTOCOL ("Missing item: %s", type.to_nick ());
+
+			return result;
+		}
+
+		private bool read_item (out ItemHeader h, out unowned BufferReader payload) throws Error {
+			if (r.available == 0 || r.offset == current_end_item_offset) {
+				h = ItemHeader ();
+				payload = null;
+				return false;
+			}
+
+			h = read_header ();
+			payload = read_payload (h);
+			return true;
+		}
+
+		private ItemHeader read_header () throws Error {
+			if (r.available < HEADER_SIZE)
+				throw new Error.PROTOCOL ("KCDATA truncated at %zu (need header, avail=%zu)", r.offset, r.available);
+
+			var item_start = r.offset;
+
+			var h = read_item_header_fields (r);
+
+			var avail_payload = current_end_item_offset - r.offset;
+			var avail = size_t.min (r.available, avail_payload);
+
+			if (h.size > avail) {
+				throw new Error.PROTOCOL ("KCDATA truncated at %zu (type=0x%x size=%u avail=%zu)", item_start,
+					(uint32) h.type, h.size, avail);
+			}
+
+			return h;
+		}
+
+		private unowned BufferReader read_payload (ItemHeader h) throws Error {
+			unowned uint8[] payload = r.read_data (h.size);
+
+			payload_buf.reset_data (payload);
+			payload_r.reset (payload_buf);
+
+			r.align (ALIGNMENT_SIZE);
+
+			return payload_r;
+		}
+
+		private void enter_container_body (uint64 id) throws Error {
+			var body_start = r.offset;
+
+			size_t end_item_offset;
+			find_container_end (body_start, id, out end_item_offset);
+
+			var s = Scope ();
+			s.end_item_offset = end_item_offset;
+			s.end_id = id;
+			scopes.append_val (s);
+
+			current_end_item_offset = end_item_offset;
+		}
+
+		private void leave_container () throws Error {
+			var s = scopes.index (scopes.length - 1);
+			scopes.set_size (scopes.length - 1);
+
+			consume_container_end_at (s.end_item_offset, s.end_id);
+
+			if (scopes.length == 0)
+				current_end_item_offset = buf.bytes.get_size ();
+			else {
+				var parent = scopes.index (scopes.length - 1);
+				current_end_item_offset = parent.end_item_offset;
+			}
+		}
+
+		private void skip_container_body (uint64 id) throws Error {
+			var body_start = r.offset;
+
+			size_t end_item_offset;
+			find_container_end (body_start, id, out end_item_offset);
+
+			consume_container_end_at (end_item_offset, id);
+		}
+
+		private void consume_container_end_at (size_t end_item_offset, uint64 id) throws Error {
+			if (r.offset != end_item_offset)
+				r.seek (end_item_offset);
+
+			if (r.available < HEADER_SIZE)
+				throw new Error.PROTOCOL ("KCDATA truncated at %zu (need header, avail=%zu)", r.offset, r.available);
+
+			var item_start = r.offset;
+
+			var h = read_item_header_fields (r);
+
+			if (h.type != ItemType.CONTAINER_END || h.flags != id) {
+				throw new Error.PROTOCOL ("Malformed container end at %zu (want id=0x%016" + uint64.FORMAT_MODIFIER + "x)",
+					item_start, id);
+			}
+
+			if (h.size > r.available) {
+				throw new Error.PROTOCOL ("KCDATA truncated at %zu (type=0x%x size=%u avail=%zu)", item_start,
+					(uint32) h.type, h.size, r.available);
+			}
+
+			r.skip (h.size);
+			r.align (ALIGNMENT_SIZE);
+		}
+
+		private void find_container_end (size_t body_start, uint64 id, out size_t end_item_offset) throws Error {
+			scan_container_ids.set_size (0);
+			scan_r.seek (body_start);
+
+			while (true) {
+				if (scan_r.available < HEADER_SIZE) {
+					throw new Error.PROTOCOL ("KCDATA truncated at %zu (need header, avail=%zu)",
+						scan_r.offset, scan_r.available);
+				}
+
+				var item_start = scan_r.offset;
+
+				var h = read_item_header_fields (scan_r);
+
+				if (h.size > scan_r.available) {
+					throw new Error.PROTOCOL ("KCDATA truncated at %zu (type=0x%x size=%u avail=%zu)", item_start,
+						(uint32) h.type, h.size, scan_r.available);
+				}
+
+				scan_r.skip (h.size);
+				scan_r.align (ALIGNMENT_SIZE);
+
+				if (h.type == ItemType.CONTAINER_BEGIN) {
+					scan_container_ids.append_val (h.flags);
+					continue;
+				}
+
+				if (h.type == ItemType.CONTAINER_END) {
+					if (scan_container_ids.length != 0) {
+						var top = scan_container_ids.remove_index (scan_container_ids.length - 1);
+						if (top != h.flags) {
+							throw new Error.PROTOCOL ("Malformed container nesting at %zu (id=0x%016" +
+								uint64.FORMAT_MODIFIER + "x)", item_start, h.flags);
+						}
+					} else {
+						if (h.flags != id) {
+							throw new Error.PROTOCOL ("Malformed container end at %zu (id=0x%016" +
+								uint64.FORMAT_MODIFIER + "x)", item_start, h.flags);
+						}
+
+						end_item_offset = item_start;
+						return;
+					}
+				}
+			}
+		}
+
+		private ItemHeader read_item_header_fields (BufferReader r) throws Error {
+			var h = ItemHeader ();
+			h.type = (ItemType) r.read_uint32 ();
+			h.size = r.read_uint32 ();
+			h.flags = r.read_uint64 ();
+			return h;
+		}
+	}
+}

src/fruity/kdebug.vala

@@ -0,0 +1,220 @@
+[CCode (gir_namespace = "FridaFruity", gir_version = "1.0")]
+namespace Frida.Fruity {
+	public enum KdebugClass {
+		MACH = 1,
+		FSYSTEM = 3,
+		BSD = 4,
+		TRACE = 7,
+		DYLD = 31,
+		PERF = 37,
+
+		ANY = 0xff;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugClass> (this);
+		}
+	}
+
+	public enum KdebugMachSubclass {
+		EXCP_SC = 12,
+	}
+
+	public enum KdebugFsystemSubclass {
+		FSRW = 1,
+		DKRW,
+		FSVN,
+		FSLOOOKUP,
+		JOURNAL,
+		IOCTL,
+		BOOTCACHE,
+		HFS,
+		APFS,
+		SMB,
+		MOUNT,
+		EXFAT = 14,
+		MSDOS,
+		ACFS,
+		THROTTLE,
+		DECMP,
+		VFS,
+		LIVEFS,
+		NFS;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugFsystemSubclass> (this);
+		}
+	}
+
+	public enum KdebugFsystemFsrwEvent {
+		LOOKUP = 36,
+		LOOKUP_DONE = 39;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugFsystemFsrwEvent> (this);
+		}
+	}
+
+	public enum KdebugBsdSubclass {
+		EXCP_SC = 12,
+	}
+
+	public enum KdebugTraceSubclass {
+		DATA,
+		STRING,
+		INFO;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugTraceSubclass> (this);
+		}
+	}
+
+	public enum KdebugTraceDataEvent {
+		NEWTHREAD = 1,
+		EXEC,
+		THREAD_TERMINATE,
+		THREAD_TERMINATE_PID;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugTraceDataEvent> (this);
+		}
+	}
+
+	public enum KdebugTraceStringEvent {
+		GLOBAL,
+		NEWTHREAD,
+		EXEC,
+		PROC_EXIT,
+		THREADNAME,
+		THREADNAME_PREV;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugTraceStringEvent> (this);
+		}
+	}
+
+	public enum KdebugDyldSubclass {
+		UUID = 5,
+	}
+
+	public enum KdebugDyldUuidEvent {
+		MAP_A,
+		MAP_B,
+		MAP_32_A,
+		MAP_32_B,
+		MAP_32_C,
+		UNMAP_A,
+		UNMAP_B,
+		UNMAP_32_A,
+		UNMAP_32_B,
+		UNMAP_32_C,
+		SHARED_CACHE_A,
+		SHARED_CACHE_B,
+		SHARED_CACHE_32_A,
+		SHARED_CACHE_32_B,
+		SHARED_CACHE_32_C,
+		AOT_MAP_A,
+		AOT_MAP_B;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugDyldUuidEvent> (this);
+		}
+	}
+
+	public enum KdebugPerfSubclass {
+		GENERIC,
+		THREADINFO,
+		CALLSTACK,
+		TIMER,
+		PET,
+		AST,
+		KPC,
+		KDBG,
+		TASK,
+		LAZY,
+		MEMINFO;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugPerfSubclass> (this);
+		}
+	}
+
+	public enum KdebugPerfCallstackEvent {
+		KSAMPLE,
+		UPEND,
+		USAMPLE,
+		KDATA,
+		UDATA,
+		KHDR,
+		UHDR,
+		ERROR,
+		BACKTRACE,
+		LOG,
+		EXHDR,
+		EXDATA,
+		EXSTACKHDR,
+		EXSTACK,
+		KEXOFFSET;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugPerfCallstackEvent> (this);
+		}
+	}
+
+	public const uint8 KDEBUG_SUBCLASS_ANY = 0xff;
+
+	public const uint16 KDEBUG_CODE_ANY = 0x3fff;
+
+	public enum KdebugFunctionQualifier {
+		NONE,
+		START,
+		END;
+
+		public string to_nick () {
+			return Marshal.enum_to_nick<KdebugFunctionQualifier> (this);
+		}
+	}
+
+	public struct KdebugCode {
+		public uint32 raw;
+
+		public KdebugCode (uint32 raw) {
+			this.raw = raw;
+		}
+
+		public KdebugCode.from_parts (
+				KdebugClass klass,
+				uint8 subclass = KDEBUG_SUBCLASS_ANY,
+				uint16 code = KDEBUG_CODE_ANY,
+				KdebugFunctionQualifier func_qual = NONE) {
+			raw =
+				(((uint32) klass & 0xff) << 24) |
+				(((uint32) subclass & 0xff) << 16) |
+				(((uint32) code & 0x3fff) << 2) |
+				((uint32) func_qual & 0x3);
+		}
+
+		public KdebugClass klass {
+			get {
+				return (KdebugClass) ((raw >> 24) & 0xff);
+			}
+		}
+
+		public uint8 subclass {
+			get {
+				return (uint8) ((raw >> 16) & 0xff);
+			}
+		}
+
+		public uint16 code {
+			get {
+				return (uint16) ((raw >> 2) & 0x3fff);
+			}
+		}
+
+		public KdebugFunctionQualifier func_qual {
+			get {
+				return (KdebugFunctionQualifier) (raw & 0x3);
+			}
+		}
+	}
+}

src/fruity/keyed-archive.vala

@@ -9,8 +9,20 @@ namespace Frida.Fruity {
 			return other == this;
 		}
 
-		public virtual string to_string () {
-			return "NSObject";
+		public string to_string (uint level = 0) {
+			var s = new StringBuilder.sized (256);
+			append_indent (s, level);
+			append_content (s, level);
+			return s.str;
+		}
+
+		protected virtual void append_content (StringBuilder s, uint level) {
+			s.append ("NSObject {}");
+		}
+
+		protected void append_indent (StringBuilder s, uint level) {
+			for (uint i = 0; i != level; i++)
+				s.append ("  ");
 		}
 
 		public static uint hash_func (NSObject val) {
@@ -103,8 +115,19 @@ namespace Frida.Fruity {
 			return false;
 		}
 
-		public override string to_string () {
-			return integer.to_string ();
+		protected override void append_content (StringBuilder s, uint level) {
+			switch (kind) {
+				case BOOLEAN:
+					s.append (boolean ? "true" : "false");
+					break;
+				case INTEGER:
+					s.append_printf ("%" + int64.FORMAT, integer);
+					break;
+				case FLOAT:
+				case DOUBLE:
+					s.append_printf ("%f", number);
+					break;
+			}
 		}
 	}
 
@@ -129,8 +152,11 @@ namespace Frida.Fruity {
 			return other_string.str == str;
 		}
 
-		public override string to_string () {
-			return str;
+		protected override void append_content (StringBuilder s, uint level) {
+			s
+				.append_c ('"')
+				.append (str.replace ("\"", "\\\""))
+				.append_c ('"');
 		}
 	}
 
@@ -155,8 +181,8 @@ namespace Frida.Fruity {
 			return other_data.bytes.compare (bytes) == 0;
 		}
 
-		public override string to_string () {
-			return "NSData";
+		protected override void append_content (StringBuilder s, uint level) {
+			s.append_printf ("NSData { size = %" + size_t.FORMAT + " }", bytes.get_size ());
 		}
 	}
 
@@ -219,6 +245,25 @@ namespace Frida.Fruity {
 		public void set_value (string key, NSObject val) {
 			storage[key] = val;
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			if (storage.size == 0) {
+				s.append ("{}");
+				return;
+			}
+
+			s.append ("{\n");
+			foreach (var e in entries) {
+				append_indent (s, level + 1);
+				s
+					.append (e.key)
+					.append (": ");
+				e.value.append_content (s, level + 1);
+				s.append (",\n");
+			}
+			append_indent (s, level);
+			s.append_c ('}');
+		}
 	}
 
 	public sealed class NSDictionaryRaw : NSObject {
@@ -253,6 +298,24 @@ namespace Frida.Fruity {
 				? storage
 				: new Gee.HashMap<NSObject, NSObject> (NSObject.hash_func, NSObject.equal_func);
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			if (storage.size == 0) {
+				s.append ("{}");
+				return;
+			}
+
+			s.append ("{\n");
+			foreach (var e in entries) {
+				append_indent (s, level + 1);
+				e.key.append_content (s, level + 1);
+				s.append (": ");
+				e.value.append_content (s, level + 1);
+				s.append (",\n");
+			}
+			append_indent (s, level);
+			s.append_c ('}');
+		}
 	}
 
 	public sealed class NSArray : NSObject {
@@ -277,6 +340,56 @@ namespace Frida.Fruity {
 		public void add_object (NSObject obj) {
 			storage.add (obj);
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			if (storage.size == 0) {
+				s.append ("[]");
+				return;
+			}
+
+			s.append ("[\n");
+			foreach (var e in elements) {
+				append_indent (s, level + 1);
+				e.append_content (s, level + 1);
+				s.append (",\n");
+			}
+			append_indent (s, level);
+			s.append_c (']');
+		}
+	}
+
+	public sealed class NSSet : NSObject {
+		public Gee.Iterable<NSObject> items {
+			owned get {
+				return storage;
+			}
+		}
+
+		private Gee.HashSet<NSObject> storage;
+
+		public NSSet (Gee.HashSet<NSObject>? storage = null) {
+			this.storage = (storage != null) ? storage : new Gee.HashSet<NSObject> (NSObject.hash_func);
+		}
+
+		public void add_object (NSObject obj) {
+			storage.add (obj);
+		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			if (storage.size == 0) {
+				s.append ("{}");
+				return;
+			}
+
+			s.append ("{\n");
+			foreach (var e in items) {
+				append_indent (s, level + 1);
+				e.append_content (s, level + 1);
+				s.append (",\n");
+			}
+			append_indent (s, level);
+			s.append_c ('}');
+		}
 	}
 
 	public sealed class NSDate : NSObject {
@@ -296,6 +409,10 @@ namespace Frida.Fruity {
 			return new DateTime.from_unix_utc (MAC_EPOCH_DELTA_FROM_UNIX + whole_seconds)
 				.add_seconds (time - (double) whole_seconds);
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			s.append_printf ("NSDate { time = %f }", time);
+		}
 	}
 
 	public sealed class NSError : NSObject {
@@ -319,6 +436,35 @@ namespace Frida.Fruity {
 			this.code = code;
 			this.user_info = user_info;
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			s.append ("NSError { domain = ");
+			domain.append_content (s, level);
+			s.append_printf (", code = %" + uint64.FORMAT_MODIFIER + "d, user_info = ", code);
+
+			if (user_info.size == 0) {
+				user_info.append_content (s, level);
+				s.append (" }");
+				return;
+			}
+
+			s.append ("{\n");
+			append_indent (s, level + 1);
+			s.append ("domain: ");
+			domain.append_content (s, level + 1);
+			s.append (",\n");
+
+			append_indent (s, level + 1);
+			s.append_printf ("code: %" + uint64.FORMAT_MODIFIER + "d,\n", code);
+
+			append_indent (s, level + 1);
+			s.append ("user_info: ");
+			user_info.append_content (s, level + 1);
+			s.append_c ('\n');
+
+			append_indent (s, level);
+			s.append_c ('}');
+		}
 	}
 
 	public sealed class DTTapMessage : NSObject {
@@ -330,6 +476,25 @@ namespace Frida.Fruity {
 		public DTTapMessage (NSDictionary plist) {
 			this.plist = plist;
 		}
+
+		protected override void append_content (StringBuilder s, uint level) {
+			if (plist.size == 0) {
+				s.append ("DTTapMessage { plist: ");
+				plist.append_content (s, level);
+				s.append (" }");
+				return;
+			}
+
+			s.append ("DTTapMessage {\n");
+
+			append_indent (s, level + 1);
+			s.append ("plist: ");
+			plist.append_content (s, level + 1);
+			s.append_c ('\n');
+
+			append_indent (s, level);
+			s.append_c ('}');
+		}
 	}
 
 	namespace NSKeyedArchive {
@@ -338,6 +503,7 @@ namespace Frida.Fruity {
 
 		private const string[] DICTIONARY_CLASS = { "NSDictionary", "NSObject" };
 		private const string[] ARRAY_CLASS = { "NSArray", "NSObject" };
+		private const string[] SET_CLASS = { "NSSet", "NSObject" };
 
 		[CCode (has_target = false)]
 		private delegate PlistUid EncodeFunc (NSObject instance, EncodingContext ctx);
@@ -455,6 +621,7 @@ namespace Frida.Fruity {
 			encoders[typeof (NSString)] = encode_string;
 			encoders[typeof (NSDictionary)] = encode_dictionary;
 			encoders[typeof (NSArray)] = encode_array;
+			encoders[typeof (NSSet)] = encode_set;
 		}
 
 		private static void ensure_decoders_registered () {
@@ -619,6 +786,21 @@ namespace Frida.Fruity {
 			return uid;
 		}
 
+		private static PlistUid encode_set (NSObject instance, EncodingContext ctx) {
+			NSSet set = (NSSet) instance;
+
+			var object = new PlistDict ();
+			var uid = ctx.add_object (object);
+
+			var objs = new PlistArray ();
+			foreach (var element in set.items)
+				objs.add_uid (encode_value (element, ctx));
+			object.set_array ("NS.objects", objs);
+			object.set_uid ("$class", ctx.get_class (SET_CLASS));
+
+			return uid;
+		}
+
 		private static NSObject decode_array (PlistDict instance, DecodingContext ctx) throws Error, PlistError {
 			var objs = instance.get_array ("NS.objects");
 

src/fruity/kperfdata.vala

@@ -0,0 +1,180 @@
+[CCode (gir_namespace = "FridaFruity", gir_version = "1.0")]
+namespace Frida.Fruity {
+	public delegate void KperfdataRecordVisitor (KdBuf rec) throws Error;
+
+	public sealed class KperfdataStreamParser : Object {
+		private ByteArray stash = new ByteArray ();
+		private size_t cursor = 0;
+
+		private bool have_header = false;
+		private uint32 thread_count = 0;
+		private size_t records_offset = 0;
+
+		private const uint32 RAW_VERSION2 = 0x55aa0200u;
+
+		private const size_t HEADER_FIXED_SIZE = 0x120;
+		private const size_t THREADMAP_ENTRY_SIZE = 0x20;
+		private const size_t PAGE_SIZE = 0x1000;
+
+		private const size_t KD_BUF_SIZE = 0x40;
+
+		public void reset () {
+			stash.set_size (0);
+			cursor = 0;
+
+			have_header = false;
+			thread_count = 0;
+			records_offset = 0;
+		}
+
+		public void push (Bytes chunk, KperfdataRecordVisitor visitor) throws Error {
+			stash.append (chunk.get_data ());
+
+			var stash_bytes = new Bytes.static (stash.data);
+			parse_bytes (stash_bytes, visitor);
+
+			compact ();
+		}
+
+		private void parse_bytes (Bytes bytes, KperfdataRecordVisitor visitor) throws Error {
+			var buf = new Frida.Buffer (bytes, LITTLE_ENDIAN);
+			var r = new Frida.BufferReader (buf);
+
+			while (true) {
+				if (!have_header) {
+					if (r.available < 8)
+						return;
+
+					size_t header_start = r.offset;
+
+					uint32 magic = r.read_uint32 ();
+					if (magic != RAW_VERSION2)
+						throw new Error.PROTOCOL ("Unknown kperfdata magic 0x%x", magic);
+
+					thread_count = r.read_uint32 ();
+
+					uint64 threadmaps_size_64 = thread_count * THREADMAP_ENTRY_SIZE;
+					size_t header_size = (size_t) (HEADER_FIXED_SIZE + threadmaps_size_64);
+					size_t aligned = align_up (header_size, PAGE_SIZE);
+
+					records_offset = aligned;
+
+					if ((r.offset - 8) != header_start)
+						throw new Error.PROTOCOL ("Internal offset bookkeeping error");
+
+					if ((stash.len - header_start) < records_offset) {
+						r.skip (header_start - r.offset);
+						return;
+					}
+
+					cursor = header_start + records_offset;
+					have_header = true;
+
+					r.skip (cursor - r.offset);
+					continue;
+				}
+
+				if (r.offset < cursor) {
+					if ((cursor - r.offset) > r.available)
+						return;
+
+					r.skip (cursor - r.offset);
+				}
+
+				if (r.available < KD_BUF_SIZE)
+					return;
+
+				KdBuf rec = KdBuf ();
+
+				rec.timestamp = r.read_uint64 ();
+
+				rec.arg1 = r.read_uint64 ();
+				rec.arg2 = r.read_uint64 ();
+				rec.arg3 = r.read_uint64 ();
+				rec.arg4 = r.read_uint64 ();
+				rec.arg5 = r.read_uint64 ();
+
+				rec.debugid = r.read_uint32 ();
+				rec.cpuid = r.read_uint32 ();
+
+				rec.unused = r.read_uint64 ();
+
+				visitor (rec);
+
+				cursor = r.offset;
+			}
+		}
+
+		private void compact () {
+			if (cursor == 0)
+				return;
+
+			if (cursor >= stash.len) {
+				stash.set_size (0);
+				cursor = 0;
+				return;
+			}
+
+			size_t remaining = stash.len - cursor;
+			Memory.move (stash.data, (uint8 *) stash.data + cursor, remaining);
+			stash.set_size ((uint) remaining);
+			cursor = 0;
+		}
+
+		private static size_t align_up (size_t val, size_t alignment) {
+			size_t mask = alignment - 1;
+			return (val + mask) & ~mask;
+		}
+	}
+
+	public struct KdBuf {
+		public uint64 timestamp;
+
+		public uint64 arg1;
+		public uint64 arg2;
+		public uint64 arg3;
+		public uint64 arg4;
+		public uint64 arg5;
+
+		public uint32 debugid;
+		public uint32 cpuid;
+		public uint64 unused;
+
+		public KdebugCode kcode {
+			get {
+				return KdebugCode (debugid);
+			}
+		}
+
+		public string to_string () {
+			var kc = kcode;
+
+			return (
+				"ts=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "arg1=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "arg2=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "arg3=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "arg4=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "arg5=0x%" + uint64.FORMAT_MODIFIER + "x "
+				+ "debugid=0x%08x "
+				+ "klass=%s subclass=%u code=%u func=%s "
+				+ "cpuid=%u "
+				+ "unused=0x%" + uint64.FORMAT_MODIFIER + "x"
+			).printf (
+				timestamp,
+				arg1,
+				arg2,
+				arg3,
+				arg4,
+				arg5,
+				debugid,
+				kc.klass.to_nick (),
+				kc.subclass,
+				kc.code,
+				kc.func_qual.to_nick (),
+				cpuid,
+				unused
+			);
+		}
+	}
+}

src/fruity/ncm.vala

@@ -36,8 +36,6 @@ namespace Frida.Fruity {
 		private uint16 ndp_fixed_header_size;
 
 		private VirtualNetworkStack? _netstack;
-		private Gee.Queue<Bytes> pending_input = new Gee.ArrayQueue<Bytes> ();
-		private bool input_flush_scheduled = false;
 		private Gee.Queue<Bytes> pending_output = new Gee.ArrayQueue<Bytes> ();
 		private size_t out_in_flight_count = 0;
 		private size_t out_in_flight_bytes = 0;
@@ -184,8 +182,20 @@ namespace Frida.Fruity {
 				}
 
 				try {
-					var frame = yield pending.poll ().future.wait_async (io_cancellable);
-					handle_ncm_frame (frame);
+					var datagrams = new Gee.ArrayList<Bytes> ();
+					while (true) {
+						var request = pending.peek ();
+
+						if (request == null)
+							break;
+						if (!datagrams.is_empty && !request.future.ready)
+							break;
+
+						var frame = yield pending.poll ().future.wait_async (io_cancellable);
+						datagrams.add_all (handle_ncm_frame (frame));
+					}
+
+					yield _netstack.handle_incoming_datagrams (datagrams);
 				} catch (GLib.Error e) {
 					return;
 				}
@@ -208,7 +218,7 @@ namespace Frida.Fruity {
 			}
 		}
 
-		private void handle_ncm_frame (Bytes frame) throws GLib.Error {
+		private Gee.List<Bytes> handle_ncm_frame (Bytes frame) throws GLib.Error {
 			var input = new DataInputStream (new MemoryInputStream.from_bytes (frame));
 			input.byte_order = LITTLE_ENDIAN;
 
@@ -222,6 +232,8 @@ namespace Frida.Fruity {
 			input.skip (6);
 			var ndp_index = input.read_uint16 ();
 
+			var datagrams = new Gee.ArrayList<Bytes> ();
+
 			do {
 				input.seek (ndp_index, SET);
 				input.read_all (raw_signature[:4], out bytes_read);
@@ -250,35 +262,13 @@ namespace Frida.Fruity {
 							notify_property ("remote-ipv6-address");
 					}
 
-					on_incoming_datagram (datagram);
+					datagrams.add (datagram);
 				}
 
 				ndp_index = next_ndp_index;
 			} while (ndp_index != 0);
-		}
 
-		private void on_incoming_datagram (Bytes datagram) {
-			pending_input.offer (datagram);
-
-			if (!input_flush_scheduled) {
-				var source = new IdleSource ();
-				source.set_callback (() => {
-					input_flush_scheduled = false;
-					flush_pending_input ();
-					return Source.REMOVE;
-				});
-				source.attach (MainContext.get_thread_default ());
-				input_flush_scheduled = true;
-			}
-		}
-
-		private void flush_pending_input () {
-			var datagrams = pending_input;
-			pending_input = new Gee.ArrayQueue<Bytes> ();
-			try {
-				_netstack.handle_incoming_datagrams (datagrams);
-			} catch (Error e) {
-			}
+			return datagrams;
 		}
 
 		private void on_netif_outgoing_datagrams (Gee.Collection<Bytes> datagrams) {

src/fruity/network-stack.vala

@@ -283,14 +283,14 @@ namespace Frida.Fruity {
 			return new Ipv6UdpSocket (this);
 		}
 
-		public void handle_incoming_datagrams (Gee.Collection<Bytes> datagrams) throws Error {
+		public async void handle_incoming_datagrams (Gee.Collection<Bytes> datagrams) throws Error {
+			LWIP.ErrorCode err = OK;
+
 			check_started ();
 
-			check (perform_on_lwip_thread (() => {
+			schedule_on_lwip_thread (() => {
 				begin_output ();
 
-				LWIP.ErrorCode err = OK;
-
 				foreach (var d in datagrams) {
 					var pbuf = LWIP.PacketBuffer.alloc (RAW, (uint16) d.get_size (), POOL);
 					pbuf.take (d.get_data ());
@@ -304,8 +304,14 @@ namespace Frida.Fruity {
 
 				end_output ();
 
+				schedule_on_frida_thread (handle_incoming_datagrams.callback);
+
 				return err;
-			}));
+			});
+
+			yield;
+
+			check (err);
 		}
 
 		private static LWIP.ErrorCode on_netif_link_output (LWIP.NetworkInterface handle, LWIP.PacketBuffer pbuf) {
@@ -359,6 +365,15 @@ namespace Frida.Fruity {
 		}
 
 		internal LWIP.ErrorCode perform_on_lwip_thread (owned WorkFunc work) {
+			var req = submit_work ((owned) work);
+			return req.join ();
+		}
+
+		internal void schedule_on_lwip_thread (owned WorkFunc work) {
+			submit_work ((owned) work);
+		}
+
+		private Request submit_work (owned WorkFunc work) {
 			var req = new Request ((owned) work);
 
 			if (Thread.self<bool> () == lwip_thread) {
@@ -369,7 +384,7 @@ namespace Frida.Fruity {
 				LWIP.Runtime.schedule (perform_next_request);
 			}
 
-			return req.join ();
+			return req;
 		}
 
 		private void perform_next_request () {

src/fruity/xpc.vala

@@ -2039,19 +2039,19 @@ namespace Frida.Fruity {
 		private Promise<bool> close_request = new Promise<bool> ();
 
 		private TunnelParameters tunnel_params;
+		private Bytes flush_trigger_datagram;
 		private VirtualNetworkStack _tunnel_netstack;
 
 		private BufferedInputStream input;
 		private OutputStream output;
 
-		private Gee.Queue<Bytes> pending_input = new Gee.ArrayQueue<Bytes> ();
-		private bool input_flush_scheduled = false;
 		private Gee.Queue<Bytes> pending_output = new Gee.ArrayQueue<Bytes> ();
 		private bool writing = false;
 
 		private Cancellable io_cancellable = new Cancellable ();
 
 		private const size_t PREFERRED_MTU = 16000;
+		private const size_t REMOTEPAIRINGDEVICED_DEFER_THRESHOLD = 8192;
 		private const string PSK_IDENTITY = "com.apple.CoreDevice.TunnelService.Identity";
 
 		public static async TcpTunnelConnection open (InetSocketAddress address, NetworkStack netstack, TunnelKey local_keypair,
@@ -2125,6 +2125,7 @@ namespace Frida.Fruity {
 			post (make_handshake_request (PREFERRED_MTU));
 
 			tunnel_params = TunnelParameters.from_json (yield read_message (cancellable));
+			flush_trigger_datagram = make_minimal_dummy_ipv6_datagram (tunnel_params.address, tunnel_params.server_address);
 
 			_tunnel_netstack = new VirtualNetworkStack (null, tunnel_params.address, tunnel_params.mtu);
 			_tunnel_netstack.outgoing_datagrams.connect (post_batch);
@@ -2147,8 +2148,39 @@ namespace Frida.Fruity {
 		private async void process_incoming_messages () {
 			try {
 				while (true) {
-					var datagram = yield read_datagram (io_cancellable);
-					on_incoming_datagram (datagram);
+					var pending_input = new Gee.ArrayQueue<Bytes> ();
+					while (true) {
+						var size = peek_datagram_size ();
+						if (size == -1)
+							break;
+
+						var datagram = new uint8[size];
+						input.read (datagram, io_cancellable);
+
+						pending_input.offer (new Bytes.take ((owned) datagram));
+					}
+
+					if (pending_input.size != 0) {
+						try {
+							yield _tunnel_netstack.handle_incoming_datagrams (pending_input);
+						} catch (Error e) {
+						}
+
+						var source = new IdleSource ();
+						source.set_callback (process_incoming_messages.callback);
+						source.attach (MainContext.get_thread_default ());
+						yield;
+					}
+
+					ssize_t n;
+					try {
+						n = yield input.fill_async (-1, Priority.DEFAULT, io_cancellable);
+					} catch (GLib.Error e) {
+						throw new Error.TRANSPORT ("Connection closed");
+					}
+
+					if (n == 0)
+						throw new Error.TRANSPORT ("Connection closed");
 				}
 			} catch (GLib.Error e) {
 			}
@@ -2173,30 +2205,6 @@ namespace Frida.Fruity {
 			closed ();
 		}
 
-		private void on_incoming_datagram (Bytes datagram) {
-			pending_input.offer (datagram);
-
-			if (!input_flush_scheduled) {
-				var source = new IdleSource ();
-				source.set_callback (() => {
-					input_flush_scheduled = false;
-					flush_pending_input ();
-					return Source.REMOVE;
-				});
-				source.attach (MainContext.get_thread_default ());
-				input_flush_scheduled = true;
-			}
-		}
-
-		private void flush_pending_input () {
-			var datagrams = pending_input;
-			pending_input = new Gee.ArrayQueue<Bytes> ();
-			try {
-				_tunnel_netstack.handle_incoming_datagrams (datagrams);
-			} catch (Error e) {
-			}
-		}
-
 		private void post (Bytes datagram) {
 			var batch = new Gee.ArrayList<Bytes> ();
 			batch.add (datagram);
@@ -2231,6 +2239,14 @@ namespace Frida.Fruity {
 				} catch (GLib.Error e) {
 					break;
 				}
+
+				if (pending_output.is_empty && size > REMOTEPAIRINGDEVICED_DEFER_THRESHOLD) {
+					try {
+						yield output.write_all_async (flush_trigger_datagram.get_data (), Priority.DEFAULT,
+							io_cancellable, null);
+					} catch (GLib.Error e) {
+					}
+				}
 			}
 
 			writing = false;
@@ -2269,24 +2285,21 @@ namespace Frida.Fruity {
 			return new JsonObjectReader (json);
 		}
 
-		private async Bytes read_datagram (Cancellable? cancellable) throws Error, IOError {
-			size_t header_size = 40;
+		private ssize_t peek_datagram_size () {
+			ssize_t header_size = 40;
 			if (input.get_available () < header_size)
-				yield fill_until_n_bytes_available (header_size, cancellable);
+				return -1;
 
 			uint16 payload_size = 0;
 			unowned uint8[] size_buf = ((uint8[]) &payload_size)[:2];
 			input.peek (size_buf, 4);
 			payload_size = uint16.from_big_endian (payload_size);
 
-			size_t full_size = header_size + payload_size;
+			ssize_t full_size = header_size + payload_size;
 			if (input.get_available () < full_size)
-				yield fill_until_n_bytes_available (full_size, cancellable);
+				return -1;
 
-			var datagram = new uint8[full_size];
-			input.read (datagram, cancellable);
-
-			return new Bytes.take ((owned) datagram);
+			return full_size;
 		}
 
 		private async void fill_until_n_bytes_available (size_t minimum, Cancellable? cancellable) throws Error, IOError {
@@ -2310,6 +2323,23 @@ namespace Frida.Fruity {
 			}
 		}
 
+		private static Bytes make_minimal_dummy_ipv6_datagram (InetAddress sender, InetAddress recipient) {
+			assert (sender.get_native_size () == 16 && recipient.get_native_size () == 16);
+
+			uint8 hop_limit = 1;
+			unowned uint8[] src = sender.to_bytes ();
+			unowned uint8[] dst = recipient.to_bytes ();
+
+			return new BufferBuilder (BIG_ENDIAN)
+				.append_uint32 (0x60000000)
+				.append_uint16 (0)
+				.append_uint8 (59)
+				.append_uint8 (hop_limit)
+				.append_data (src[:16])
+				.append_data (dst[:16])
+				.build ();
+		}
+
 		[CCode (cname = "g_tls_connection_openssl_get_ssl")]
 		private extern static unowned SSL get_ssl_handle_from_connection (void * connection);
 
@@ -2367,6 +2397,7 @@ namespace Frida.Fruity {
 		private Gee.Map<int64?, Stream> streams = new Gee.HashMap<int64?, Stream> (Numeric.int64_hash, Numeric.int64_equal);
 		private Gee.Queue<Bytes> pending_input = new Gee.ArrayQueue<Bytes> ();
 		private bool input_flush_scheduled = false;
+		private bool input_flush_happening = false;
 		private Gee.Queue<Bytes> pending_output = new Gee.ArrayQueue<Bytes> ();
 
 		private DatagramBasedSource? rx_source;
@@ -2842,7 +2873,7 @@ namespace Frida.Fruity {
 				var source = new IdleSource ();
 				source.set_callback (() => {
 					input_flush_scheduled = false;
-					flush_pending_input ();
+					flush_pending_input.begin ();
 					return Source.REMOVE;
 				});
 				source.attach (MainContext.get_thread_default ());
@@ -2852,13 +2883,20 @@ namespace Frida.Fruity {
 			return 0;
 		}
 
-		private void flush_pending_input () {
+		private async void flush_pending_input () {
+			if (input_flush_happening)
+				return;
+			input_flush_happening = true;
+
 			var datagrams = pending_input;
 			pending_input = new Gee.ArrayQueue<Bytes> ();
+
 			try {
-				_tunnel_netstack.handle_incoming_datagrams (datagrams);
-			} catch (Error e) {
+				yield _tunnel_netstack.handle_incoming_datagrams (datagrams);
+			} catch (GLib.Error e) {
 			}
+
+			input_flush_happening = false;
 		}
 
 		private static void on_rand (uint8[] dest, NGTcp2.RNGContext rand_ctx) {

src/host-session-service.vala

@@ -231,6 +231,12 @@ namespace Frida {
 			set;
 			default = new Gee.HashMap<string, Value?> ();
 		}
+
+		public HostSessionOptions copy () {
+			var opts = new HostSessionOptions ();
+			opts.map.set_all (map);
+			return opts;
+		}
 	}
 
 	public interface HostChannelProvider : Object {

src/linux/frida-helper-backend.vala

@@ -12,6 +12,7 @@ namespace Frida {
 		private Gee.Map<uint, ExecTransitionSession> exec_transitions = new Gee.HashMap<uint, ExecTransitionSession> ();
 		private Gee.Map<uint, AwaitExecTransitionTask> exec_waiters = new Gee.HashMap<uint, AwaitExecTransitionTask> ();
 		private Gee.Map<uint, PausedSyscallSession> paused_syscalls = new Gee.HashMap<uint, PausedSyscallSession> ();
+		private Gee.Map<uint, InjectSession> suspended_by_inject = new Gee.HashMap<uint, InjectSession> ();
 		private Gee.Map<uint, RemoteAgent> agents = new Gee.HashMap<uint, RemoteAgent> ();
 		private Gee.Map<uint, Source> agent_expiries = new Gee.HashMap<uint, Source> ();
 		private Gee.Map<uint, Gee.Queue<TaskEntry>> task_queues = new Gee.HashMap<uint, Gee.Queue<TaskEntry>> ();
@@ -276,6 +277,12 @@ namespace Frida {
 					return null;
 				}
 
+				InjectSession inject_session;
+				if (backend.suspended_by_inject.unset (pid, out inject_session)) {
+					inject_session.close ();
+					return null;
+				}
+
 				SpawnedProcess? p = backend.spawned_processes[pid];
 				if (p != null) {
 					p.resume ();
@@ -313,7 +320,10 @@ namespace Frida {
 					yield pss.interrupt (cancellable);
 				var session = yield InjectSession.open (pid, cancellable);
 				RemoteAgent agent = yield session.inject (spec, cancellable);
-				session.close ();
+				if (session.was_group_stopped)
+					backend.suspended_by_inject[pid] = session;
+				else
+					session.close ();
 				return agent;
 			}
 		}
@@ -813,22 +823,23 @@ namespace Frida {
 	private const uint64 SOCK_CLOEXEC = 0x80000;
 
 	private sealed class InjectSession : SeizeSession {
-		private static ProcMapsSoEntry local_libc;
+		private static ProcMapsSnapshot.Mapping local_libc;
 		private static uint64 mmap_offset;
 		private static uint64 munmap_offset;
 
 		private static string fallback_ld;
 		private static string fallback_libc;
 
-		private static ProcMapsSoEntry? local_android_ld;
+		private static ProcMapsSnapshot.Mapping? local_android_ld;
 
 		static construct {
 			var libc = Gum.Process.get_libc_module ();
 			uint local_pid = Posix.getpid ();
-			local_libc = ProcMapsSoEntry.find_by_path (local_pid, libc.path);
+			var local_maps = ProcMapsSnapshot.from_pid (local_pid);
+			local_libc = local_maps.find_module_by_path (libc.path);
 			assert (local_libc != null);
-			mmap_offset = (uint64) (uintptr) libc.find_export_by_name ("mmap") - local_libc.base_address;
-			munmap_offset = (uint64) (uintptr) libc.find_export_by_name ("munmap") - local_libc.base_address;
+			mmap_offset = (uint64) (uintptr) libc.find_export_by_name ("mmap") - local_libc.start;
+			munmap_offset = (uint64) (uintptr) libc.find_export_by_name ("munmap") - local_libc.start;
 
 			try {
 				var program = new Gum.ElfModule.from_file ("/proc/self/exe");
@@ -846,7 +857,7 @@ namespace Frida {
 			}
 
 #if ANDROID
-			local_android_ld = ProcMapsSoEntry.find_by_path (local_pid, fallback_ld);
+			local_android_ld = local_maps.find_module_by_path (fallback_ld);
 #endif
 		}
 
@@ -1051,9 +1062,10 @@ namespace Frida {
 			uint64 allocation_base = 0;
 			size_t allocation_size = size_t.max (bootstrapper_size, loader_size) + stack_size;
 
+			var remote_maps = ProcMapsSnapshot.from_pid (pid);
+			var remote_libc = remote_maps.find_module_by_path (local_libc.path);
 			uint64 remote_mmap = 0;
 			uint64 remote_munmap = 0;
-			ProcMapsSoEntry? remote_libc = ProcMapsSoEntry.find_by_path (pid, local_libc.path);
 #if ANDROID
 			bool same_libc = remote_libc != null
 					&& remote_libc.device.major == local_libc.device.major
@@ -1066,8 +1078,8 @@ namespace Frida {
 					&& remote_libc.path == local_libc.path;
 #endif
 			if (same_libc) {
-				remote_mmap = remote_libc.base_address + mmap_offset;
-				remote_munmap = remote_libc.base_address + munmap_offset;
+				remote_mmap = remote_libc.start + mmap_offset;
+				remote_munmap = remote_libc.start + munmap_offset;
 			}
 
 			if (remote_mmap != 0) {
@@ -1165,7 +1177,9 @@ namespace Frida {
 					result.context.libc = &result.libc;
 
 					if (result.context.rtld_flavor == ANDROID && result.libc.dlopen == null) {
-						ProcMapsSoEntry? remote_ld = ProcMapsSoEntry.find_by_address (pid, (uintptr) result.context.rtld_base);
+						if (restart_after_libc_load)
+							remote_maps = ProcMapsSnapshot.from_pid (pid);
+						var remote_ld = remote_maps.find_mapping ((uintptr) result.context.rtld_base);
 						bool same_ld = remote_ld != null && local_android_ld != null
 							&& remote_ld.device.equals (local_android_ld.device)
 							&& remote_ld.inode == local_android_ld.inode;
@@ -1217,9 +1231,9 @@ namespace Frida {
 			}
 		}
 
-		private static void * rebase_pointer (uintptr local_ptr, ProcMapsSoEntry local_module, ProcMapsSoEntry remote_module) {
-			var offset = local_ptr - local_module.base_address;
-			return (void *) (remote_module.base_address + offset);
+		private static void * rebase_pointer (uintptr local_ptr, ProcMapsSnapshot.Mapping local, ProcMapsSnapshot.Mapping remote) {
+			var offset = local_ptr - local.start;
+			return (void *) (remote.start + offset);
 		}
 
 		private static string make_fallback_address () {
@@ -1815,6 +1829,11 @@ namespace Frida {
 			}
 		}
 
+		public bool was_group_stopped {
+			get;
+			private set;
+		}
+
 		public enum InitBehavior {
 			INTERRUPT,
 			CONTINUE
@@ -1861,6 +1880,8 @@ namespace Frida {
 		private async bool init_async (int io_priority, Cancellable? cancellable) throws Error, IOError {
 			PtraceOptions options = PtraceOptions.TRACESYSGOOD | PtraceOptions.TRACEEXEC;
 
+			bool was_stopped = seize_supported && query_process_state (tid) == 'T';
+
 			PtraceRequest req;
 			long res;
 			if (seize_supported) {
@@ -1886,8 +1907,14 @@ namespace Frida {
 						attach_state = ATTACHED;
 
 						if (seize_supported) {
-							ptrace (INTERRUPT, tid);
-							yield wait_for_signal (TRAP, cancellable);
+							if (was_stopped) {
+								was_group_stopped = true;
+								yield wait_for_next_stop (cancellable);
+								Posix.kill ((Posix.pid_t) pid, Posix.Signal.CONT);
+							} else {
+								ptrace (INTERRUPT, tid);
+								yield wait_for_signal (TRAP, cancellable);
+							}
 						} else {
 							yield wait_for_signal (STOP, cancellable);
 							ptrace (SETOPTIONS, tid, null, (void *) options);
@@ -1916,6 +1943,18 @@ namespace Frida {
 			return true;
 		}
 
+		private static char query_process_state (uint tid) {
+			try {
+				string stat;
+				FileUtils.get_contents ("/proc/%u/stat".printf (tid), out stat);
+				int paren_end = stat.last_index_of_char (')');
+				if (paren_end != -1 && paren_end + 2 < stat.length)
+					return stat[paren_end + 2];
+			} catch (FileError e) {
+			}
+			return '?';
+		}
+
 		public void close () throws Error {
 			if (attach_state == ATTACHED) {
 				ptrace (DETACH, tid);

src/linux/frida-helper-process.vala

@@ -36,6 +36,18 @@ namespace Frida {
 			_resource_store = null;
 		}
 
+		public async void preload (Cancellable? cancellable) throws IOError {
+			try {
+				yield obtain_for_64bit (cancellable);
+			} catch (Error e) {
+			}
+
+			try {
+				yield obtain_for_32bit (cancellable);
+			} catch (Error e) {
+			}
+		}
+
 		private ResourceStore get_resource_store () throws Error {
 			if (_resource_store == null)
 				_resource_store = new ResourceStore (tempdir);
@@ -189,6 +201,10 @@ namespace Frida {
 
 		private async LinuxHelper obtain_for_32bit (Cancellable? cancellable) throws Error, IOError {
 			if (factory32 == null) {
+#if ANDROID
+				if (sizeof (void *) == 8 && _query_android_system_property ("ro.product.cpu.abilist32") == "")
+					throw new Error.NOT_SUPPORTED ("Android system does not support 32-bit processes");
+#endif
 				var store = get_resource_store ();
 				if (sizeof (void *) != 4 && store.helper32 == null)
 					throw new Error.NOT_SUPPORTED ("Unable to handle 32-bit processes due to build configuration");

src/linux/helpers/Makefile

@@ -19,7 +19,7 @@ endif
 ifdef FRIDA_HOST
 host_machine := $(FRIDA_HOST)
 else
-host_machine := $(shell basename $$(ls -1 $(BUILDDIR)/frida-linux-*.txt | tail -1) | cut -d"." -f1 | cut -d"-" -f2-)
+host_machine := $(shell basename $$(ls -1 $(BUILDDIR)/*/frida-linux-*.txt | tail -1) | cut -d"." -f1 | cut -d"-" -f2-)
 endif
 host_arch := $(shell echo $(host_machine) | cut -d"-" -f2)
 
@@ -34,9 +34,9 @@ native_outdir := $(artifacts_dir)/native/$(host_arch)
 bpf_outdir := $(artifacts_dir)/bpf
 bpf_noarch_progs := \
 	activity-sampler \
-	softwall \
 	$(NULL)
 bpf_arch_progs := \
+	spawn-gater \
 	syscall-tracer \
 	$(NULL)
 bpf_noarch_pairs := \
@@ -50,11 +50,11 @@ bpf_arch_pairs := \
 
 build-native: ext/linux/tools/include/nolibc/nolibc.h
 	rm -rf build
-	$(MESON) setup --cross-file $(crossfile) -Db_lto=true build
-	$(MESON) compile -C build
-	install -m644 build/bootstrapper.bin $(native_outdir)/bootstrapper.bin
-	install -m644 build/loader.bin $(native_outdir)/loader.bin
-	[ -f build/zymbiote.bin ] && install -m644 build/zymbiote.bin $(native_outdir)/zymbiote.bin || true
+	$(MESON) setup --prefix /usr --cross-file $(crossfile) -Db_lto=true build
+	DESTDIR=$(abspath build/dist) $(MESON) install -C build
+	for f in build/dist/usr/share/frida-helpers/*; do \
+		install -m644 $$f $(native_outdir)/; \
+	done
 
 bpf_targets :=
 bpf_obj := $(build_dir)/module.o
@@ -67,6 +67,8 @@ linux_uapi_arch = $(strip \
 	$(if $(filter arm armbe,$1),arm, \
 	$(if $(filter arm64 arm64be,$1),arm64, \
 	$(if $(filter mips mipsel mips64 mips64el,$1),mips,unknown)))))
+has_compat32 = $(strip \
+	$(if $(filter x86_64 arm64 arm64be,$(1)),1,))
 
 kernel_headers_stamp = $(kernel_headers_dir)/$(1)/.stamp
 kernel_headers_for   = $(call kernel_headers_stamp,$(call linux_uapi_arch,$(1)))
@@ -96,6 +98,7 @@ define bpf_compile
 	$(BPF_CLANG) \
 		-target $(1) \
 		-D__TARGET_ARCH_$(2) \
+		$(if $(call has_compat32,$(3)),-DFRIDA_HAS_COMPAT32=1,) \
 		-O2 -g \
 		-I$(build_dir) \
 		-I$(libbpf_devel_dir) \
@@ -114,7 +117,7 @@ bpf_targets += $(foreach p,$(bpf_noarch_progs),$(bpf_outdir)/noarch-$(1)/$(p).el
 
 $(bpf_outdir)/noarch-$(1)/%.elf: %.bpf.c $(call kernel_headers_stamp,$(noarch_uapi_arch)) $(libbpf_devel_dir)
 	$$(call recreate_build_dir)
-	$$(call bpf_compile,$(2),$(noarch_uapi_arch))
+	$$(call bpf_compile,$(2),$(noarch_uapi_arch),noarch)
 endef
 
 define declare_bpf_arch
@@ -140,7 +143,7 @@ $(bpf_outdir)/$(1)/%.elf: %.bpf.c $(call kernel_headers_for,$(1)) $(libbpf_devel
 			{ print } \
 		' frida-linux-syscalls.h > frida-linux-syscalls.h.tmp && \
 		mv frida-linux-syscalls.h.tmp frida-linux-syscalls.h
-	$$(call bpf_compile,$(2),$$(call linux_uapi_arch,$(1)))
+	$$(call bpf_compile,$(2),$$(call linux_uapi_arch,$(1)),$(1))
 endef
 
 pair_abi    = $(word 1,$(subst :, ,$1))

src/linux/helpers/helper.lds

@@ -6,6 +6,7 @@ SECTIONS {
     KEEP(*(.text.entrypoint))
     *(.text*)
     *(.rodata*)
+    *(.data*)
   }
 
   .dynstr : { *(.dynstr) }

src/linux/helpers/inject-context.h

@@ -2,11 +2,15 @@
 #define __FRIDA_INJECT_CONTEXT_H__
 
 #ifdef NOLIBC
+# ifdef __ANDROID__
+typedef long pthread_t;
+# else
 typedef void * pthread_t;
 typedef struct _pthread_attr_t pthread_attr_t;
+typedef unsigned int socklen_t;
+# endif
 struct msghdr;
 struct sockaddr;
-typedef unsigned int socklen_t;
 #else
 # include <dlfcn.h>
 # include <pthread.h>

src/linux/helpers/meson.build

@@ -94,14 +94,10 @@ if host_machine.system() == 'android'
   endif
   zymbiote = shared_module('zymbiote', ['zymbiote.c'],
     name_prefix: '',
+    name_suffix: 'elf',
     c_args: zymbiote_flags + extra_flags,
     link_args: extra_link_args,
     link_depends: [helper_lds],
-  )
-  custom_target('zymbiote-bin',
-    input: [zymbiote],
-    output: ['zymbiote.bin'],
-    command: [objcopy, objcopy_flags, '@INPUT0@', '@OUTPUT0@'],
     install_dir: 'share' / 'frida-helpers',
     install: true,
   )