Moar sorting

Use yield on aarch in spin locks
Fix regression in DNS client
2026-11-07 17:22:16 -10:00 · 2023-05-11 09:09:46 -07:00 · 2023-05-11 02:55:41 -07:00 · 2023-05-10 23:27:10 -07:00 · 2023-05-10 21:32:04 -07:00 · 2023-05-10 21:19:54 -07:00
17681 changed files with 201466 additions and 43145 deletions
@@ -8,6 +8,7 @@ AlwaysBreakBeforeMultilineStrings: false
 AllowShortFunctionsOnASingleLine: false
 KeepEmptyLinesAtTheStartOfBlocks: true
 ConstructorInitializerAllOnOneLineOrOnePerLine: true
+IncludeBlocks: Merge
 ---
 Language: Cpp
 AllowShortFunctionsOnASingleLine: false
@@ -1,3 +1,5 @@
 # -*- conf -*-
+*.gz                         binary
+/build/bootstrap/*.com       binary
 /build/bootstrap/*.com       binary
 /usr/share/zoneinfo/*        binary
@@ -1,6 +1,7 @@
 # -*- conf -*-

 /o
+/.prompt.jtlp

 # TODO: Find some way to have Python write to o/
 __pycache__
@@ -117,10 +117,11 @@ include libc/sysv/sysv.mk			# ├──SYSTEM SUPPORT
 include libc/nt/nt.mk				# │  You can do math
 include libc/intrin/intrin.mk			# │  You can use the stack
 include libc/linux/linux.mk			# │  You can manipulate arrays
-include libc/tinymath/tinymath.mk		# │  You can issue raw system calls
-include third_party/compiler_rt/compiler_rt.mk	# │
+include third_party/compiler_rt/compiler_rt.mk	# │  You can issue raw system calls
+include libc/tinymath/tinymath.mk		# │
 include libc/str/str.mk				# │
 include third_party/xed/xed.mk			# │
+include third_party/puff/puff.mk		# │
 include third_party/zlib/zlib.mk		# │
 include third_party/double-conversion/dc.mk	# │
 include libc/elf/elf.mk				# │
@@ -131,18 +132,21 @@ include libc/calls/calls.mk			#─┐
 include third_party/getopt/getopt.mk		# │
 include libc/runtime/runtime.mk			# ├──SYSTEMS RUNTIME
 include libc/crt/crt.mk				# │  You can issue system calls
+include tool/hello/hello.mk			# │
 include third_party/nsync/nsync.mk		# │
 include third_party/dlmalloc/dlmalloc.mk	#─┘
 include libc/mem/mem.mk				#─┐
-include libc/zipos/zipos.mk			# ├──DYNAMIC RUNTIME
-include third_party/gdtoa/gdtoa.mk		# │  You can now use stdio
-include libc/time/time.mk			# │  You can finally call malloc()
-include third_party/nsync/mem/mem.mk		# │
-include libc/thread/thread.mk			# │
+include third_party/gdtoa/gdtoa.mk		# ├──DYNAMIC RUNTIME
+include third_party/nsync/mem/mem.mk		# │  You can now use stdio
+include libc/thread/thread.mk			# │  You can finally call malloc()
+include libc/zipos/zipos.mk			# │
+include libc/time/time.mk			# │
 include libc/stdio/stdio.mk			# │
 include third_party/libcxx/libcxx.mk		# │
 include net/net.mk				# │
+include third_party/vqsort/vqsort.mk		# │
 include libc/log/log.mk				# │
+include third_party/ggml/ggml.mk		# │
 include third_party/bzip2/bzip2.mk		# │
 include dsp/core/core.mk			# │
 include libc/x/x.mk				# │
@@ -152,6 +156,8 @@ include dsp/mpeg/mpeg.mk			# │
 include dsp/dsp.mk				# │
 include third_party/zlib/gz/gz.mk		# │
 include third_party/musl/musl.mk		# │
+include third_party/intel/intel.mk		# │
+include third_party/aarch64/aarch64.mk		# │
 include libc/libc.mk				#─┘
 include libc/sock/sock.mk			#─┐
 include dsp/tty/tty.mk				# ├──ONLINE RUNTIME
@@ -195,6 +201,7 @@ include tool/build/emucrt/emucrt.mk
 include tool/build/emubin/emubin.mk
 include tool/build/build.mk
 include tool/curl/curl.mk
+include third_party/qemu/qemu.mk
 include examples/examples.mk
 include examples/pyapp/pyapp.mk
 include examples/pylife/pylife.mk
@@ -281,12 +288,12 @@ o/$(MODE)/hdrs-old.txt: o/$(MODE)/.x $(MAKEFILES) $(call uniq,$(foreach x,$(HDRS
 	$(file >$@) $(foreach x,$(HDRS) $(INCS),$(file >>$@,$(x)))

 TAGS: private .UNSANDBOXED = 1
-TAGS:	o/$(MODE)/srcs-old.txt $(SRCS) o/$(MODE)/third_party/ctags/ctags.com
+TAGS:	o/$(MODE)/srcs-old.txt $(SRCS) #o/$(MODE)/third_party/ctags/ctags.com
 	@$(RM) $@
 	@o/$(MODE)/third_party/ctags/ctags.com $(TAGSFLAGS) -L $< -o $@

 HTAGS: private .UNSANDBOXED = 1
-HTAGS:	o/$(MODE)/hdrs-old.txt $(HDRS) o/$(MODE)/third_party/ctags/ctags.com
+HTAGS:	o/$(MODE)/hdrs-old.txt $(HDRS) #o/$(MODE)/third_party/ctags/ctags.com
 	@$(RM) $@
 	@build/htags o/$(MODE)/third_party/ctags/ctags.com -L $< -o $@

@@ -309,7 +316,6 @@ COSMOPOLITAN_OBJECTS =			\
 	LIBC_LOG			\
 	LIBC_TIME			\
 	LIBC_ZIPOS			\
-	THIRD_PARTY_ZLIB		\
 	THIRD_PARTY_MUSL		\
 	LIBC_STDIO			\
 	THIRD_PARTY_GDTOA		\
@@ -335,6 +341,7 @@ COSMOPOLITAN_OBJECTS =			\
 	LIBC_NT_ADVAPI32		\
 	LIBC_NT_SYNCHRONIZATION		\
 	LIBC_FMT			\
+	THIRD_PARTY_PUFF		\
 	THIRD_PARTY_COMPILER_RT		\
 	LIBC_TINYMATH			\
 	THIRD_PARTY_XED			\
@@ -413,7 +420,8 @@ toolchain:	o/cosmopolitan.h				\
 		o/$(MODE)/ape/ape.o				\
 		o/$(MODE)/ape/ape-copy-self.o			\
 		o/$(MODE)/ape/ape-no-modify-self.o		\
-		o/$(MODE)/cosmopolitan.a
+		o/$(MODE)/cosmopolitan.a			\
+		o/$(MODE)/third_party/libcxx/libcxx.a

 # UNSPECIFIED PREREQUISITES TUTORIAL
 #
@@ -243,6 +243,11 @@ You normally run the `.com.dbg` file under gdb. If you need to debug the
 gdb foo.com -ex 'add-symbol-file foo.com.dbg 0x401000'
 ```

+## Discord Chatroom
+
+The Cosmopolitan development team collaborates on the Redbean Discord
+server. You're welcome to join us! <https://discord.gg/FwAVVu7eJ4>
+
 ## Support Vector

 | Platform        | Min Version | Circa |
@@ -0,0 +1,9 @@
+#ifndef COSMOPOLITAN_APE_APE_INTERNAL_H_
+#define COSMOPOLITAN_APE_APE_INTERNAL_H_
+#include "libc/dce.h"
+
+#if SupportsWindows() || SupportsMetal() || SupportsXnu()
+#define APE_IS_SHELL_SCRIPT
+#endif
+
+#endif /* COSMOPOLITAN_APE_APE_INTERNAL_H_ */
@@ -181,8 +181,15 @@
 #include "libc/elf/pf2prot.internal.h"
 #include "libc/nt/pedef.internal.h"
 #include "libc/thread/tls.h"
+#include "ape/ape.internal.h"
 #include "libc/zip.h"

+#ifdef __x86__
+#define CODE_GRANULE 1
+#else
+#define CODE_GRANULE 4
+#endif
+
 ENTRY(_start)

 PHDRS {
@@ -250,10 +257,11 @@ SECTIONS {
    KEEP(*(SORT_BY_NAME(.sort.text.real.*)))
    /* Code we want earlier in the binary w/o modifications */
    KEEP(*(.ape.loader))
+    . = ALIGN(CODE_GRANULE);
    HIDDEN(_ereal = .);
 /*END: realmode addressability guarantee */
 /*BEGIN: morphable code */
-    . += 1;
+    . += CODE_GRANULE;

    /* Normal Code */
    *(.start)
@@ -291,13 +299,12 @@ SECTIONS {

    /* Privileged code invulnerable to magic */
    KEEP(*(.ape.pad.privileged));
-    . += . > 0 ? 1 : 0;
+    . = ALIGN(__privileged_end > __privileged_start ? PAGESIZE : 1);
 /*END: morphable code */
    HIDDEN(__privileged_start = .);
-    . += . > 0 ? 1 : 0;
    *(.privileged)
    HIDDEN(__privileged_end = .);
-    . += . > 0 ? 1 : 0;
+    . += . > 0 ? CODE_GRANULE : 0;

 /*BEGIN: Read Only Data */

@@ -383,7 +390,7 @@ SECTIONS {
    KEEP(*(.dataprologue))
    *(.data .data.*)
    KEEP(*(SORT_BY_NAME(.sort.data.*)))
-    . += . > 0 ? 1 : 0;
+    . += . > 0 ? CODE_GRANULE : 0;

    KEEP(*(.gotprologue))
    *(.got)
@@ -420,7 +427,7 @@ SECTIONS {
    *(.piro.bss)
    KEEP(*(SORT_BY_NAME(.piro.bss.sort.*)))
    HIDDEN(__piro_end = .);
-    . += . > 0 ? 1 : 0;
+    . += . > 0 ? CODE_GRANULE : 0;
 /*END: Post-Initialization Read-Only */

    /* Statically Allocated Empty Space */
@@ -567,6 +574,8 @@ SHSTUB2(ape_loader_dd_count,
            ? ROUNDUP(ape_loader_end - ape_loader, PAGESIZE) / 64
            : 0);

+#if defined(APE_IS_SHELL_SCRIPT) && !IsTiny()
+
 HIDDEN(blink_aarch64_b0 = RVA(blink_aarch64) % 10 + 48);
 HIDDEN(blink_aarch64_b1 = RVA(blink_aarch64) < 10 ? 32 : RVA(blink_aarch64) / 10 % 10 + 48);
 HIDDEN(blink_aarch64_b2 = RVA(blink_aarch64) < 100 ? 32 : RVA(blink_aarch64) / 100 % 10 + 48);
@@ -611,159 +620,7 @@ HIDDEN(blink_darwin_arm64_size_b7 = blink_darwin_arm64_size < 10000000 ? 32 : bl
 HIDDEN(blink_darwin_arm64_size_b8 = blink_darwin_arm64_size < 100000000 ? 32 : blink_darwin_arm64_size / 100000000 % 10 + 48);
 HIDDEN(blink_darwin_arm64_size_b9 = blink_darwin_arm64_size < 1000000000 ? 32 : blink_darwin_arm64_size / 1000000000 % 10 + 48);

-HIDDEN(blink_arm_b0 = RVA(blink_arm) % 10 + 48);
-HIDDEN(blink_arm_b1 = RVA(blink_arm) < 10 ? 32 : RVA(blink_arm) / 10 % 10 + 48);
-HIDDEN(blink_arm_b2 = RVA(blink_arm) < 100 ? 32 : RVA(blink_arm) / 100 % 10 + 48);
-HIDDEN(blink_arm_b3 = RVA(blink_arm) < 1000 ? 32 : RVA(blink_arm) / 1000 % 10 + 48);
-HIDDEN(blink_arm_b4 = RVA(blink_arm) < 10000 ? 32 : RVA(blink_arm) / 10000 % 10 + 48);
-HIDDEN(blink_arm_b5 = RVA(blink_arm) < 100000 ? 32 : RVA(blink_arm) / 100000 % 10 + 48);
-HIDDEN(blink_arm_b6 = RVA(blink_arm) < 1000000 ? 32 : RVA(blink_arm) / 1000000 % 10 + 48);
-HIDDEN(blink_arm_b7 = RVA(blink_arm) < 10000000 ? 32 : RVA(blink_arm) / 10000000 % 10 + 48);
-HIDDEN(blink_arm_b8 = RVA(blink_arm) < 100000000 ? 32 : RVA(blink_arm) / 100000000 % 10 + 48);
-HIDDEN(blink_arm_b9 = RVA(blink_arm) < 1000000000 ? 32 : RVA(blink_arm) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_arm_size_b0 = blink_arm_size % 10 + 48);
-HIDDEN(blink_arm_size_b1 = blink_arm_size < 10 ? 32 : blink_arm_size / 10 % 10 + 48);
-HIDDEN(blink_arm_size_b2 = blink_arm_size < 100 ? 32 : blink_arm_size / 100 % 10 + 48);
-HIDDEN(blink_arm_size_b3 = blink_arm_size < 1000 ? 32 : blink_arm_size / 1000 % 10 + 48);
-HIDDEN(blink_arm_size_b4 = blink_arm_size < 10000 ? 32 : blink_arm_size / 10000 % 10 + 48);
-HIDDEN(blink_arm_size_b5 = blink_arm_size < 100000 ? 32 : blink_arm_size / 100000 % 10 + 48);
-HIDDEN(blink_arm_size_b6 = blink_arm_size < 1000000 ? 32 : blink_arm_size / 1000000 % 10 + 48);
-HIDDEN(blink_arm_size_b7 = blink_arm_size < 10000000 ? 32 : blink_arm_size / 10000000 % 10 + 48);
-HIDDEN(blink_arm_size_b8 = blink_arm_size < 100000000 ? 32 : blink_arm_size / 100000000 % 10 + 48);
-HIDDEN(blink_arm_size_b9 = blink_arm_size < 1000000000 ? 32 : blink_arm_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_i486_b0 = RVA(blink_i486) % 10 + 48);
-HIDDEN(blink_i486_b1 = RVA(blink_i486) < 10 ? 32 : RVA(blink_i486) / 10 % 10 + 48);
-HIDDEN(blink_i486_b2 = RVA(blink_i486) < 100 ? 32 : RVA(blink_i486) / 100 % 10 + 48);
-HIDDEN(blink_i486_b3 = RVA(blink_i486) < 1000 ? 32 : RVA(blink_i486) / 1000 % 10 + 48);
-HIDDEN(blink_i486_b4 = RVA(blink_i486) < 10000 ? 32 : RVA(blink_i486) / 10000 % 10 + 48);
-HIDDEN(blink_i486_b5 = RVA(blink_i486) < 100000 ? 32 : RVA(blink_i486) / 100000 % 10 + 48);
-HIDDEN(blink_i486_b6 = RVA(blink_i486) < 1000000 ? 32 : RVA(blink_i486) / 1000000 % 10 + 48);
-HIDDEN(blink_i486_b7 = RVA(blink_i486) < 10000000 ? 32 : RVA(blink_i486) / 10000000 % 10 + 48);
-HIDDEN(blink_i486_b8 = RVA(blink_i486) < 100000000 ? 32 : RVA(blink_i486) / 100000000 % 10 + 48);
-HIDDEN(blink_i486_b9 = RVA(blink_i486) < 1000000000 ? 32 : RVA(blink_i486) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_i486_size_b0 = blink_i486_size % 10 + 48);
-HIDDEN(blink_i486_size_b1 = blink_i486_size < 10 ? 32 : blink_i486_size / 10 % 10 + 48);
-HIDDEN(blink_i486_size_b2 = blink_i486_size < 100 ? 32 : blink_i486_size / 100 % 10 + 48);
-HIDDEN(blink_i486_size_b3 = blink_i486_size < 1000 ? 32 : blink_i486_size / 1000 % 10 + 48);
-HIDDEN(blink_i486_size_b4 = blink_i486_size < 10000 ? 32 : blink_i486_size / 10000 % 10 + 48);
-HIDDEN(blink_i486_size_b5 = blink_i486_size < 100000 ? 32 : blink_i486_size / 100000 % 10 + 48);
-HIDDEN(blink_i486_size_b6 = blink_i486_size < 1000000 ? 32 : blink_i486_size / 1000000 % 10 + 48);
-HIDDEN(blink_i486_size_b7 = blink_i486_size < 10000000 ? 32 : blink_i486_size / 10000000 % 10 + 48);
-HIDDEN(blink_i486_size_b8 = blink_i486_size < 100000000 ? 32 : blink_i486_size / 100000000 % 10 + 48);
-HIDDEN(blink_i486_size_b9 = blink_i486_size < 1000000000 ? 32 : blink_i486_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_riscv64_b0 = RVA(blink_riscv64) % 10 + 48);
-HIDDEN(blink_riscv64_b1 = RVA(blink_riscv64) < 10 ? 32 : RVA(blink_riscv64) / 10 % 10 + 48);
-HIDDEN(blink_riscv64_b2 = RVA(blink_riscv64) < 100 ? 32 : RVA(blink_riscv64) / 100 % 10 + 48);
-HIDDEN(blink_riscv64_b3 = RVA(blink_riscv64) < 1000 ? 32 : RVA(blink_riscv64) / 1000 % 10 + 48);
-HIDDEN(blink_riscv64_b4 = RVA(blink_riscv64) < 10000 ? 32 : RVA(blink_riscv64) / 10000 % 10 + 48);
-HIDDEN(blink_riscv64_b5 = RVA(blink_riscv64) < 100000 ? 32 : RVA(blink_riscv64) / 100000 % 10 + 48);
-HIDDEN(blink_riscv64_b6 = RVA(blink_riscv64) < 1000000 ? 32 : RVA(blink_riscv64) / 1000000 % 10 + 48);
-HIDDEN(blink_riscv64_b7 = RVA(blink_riscv64) < 10000000 ? 32 : RVA(blink_riscv64) / 10000000 % 10 + 48);
-HIDDEN(blink_riscv64_b8 = RVA(blink_riscv64) < 100000000 ? 32 : RVA(blink_riscv64) / 100000000 % 10 + 48);
-HIDDEN(blink_riscv64_b9 = RVA(blink_riscv64) < 1000000000 ? 32 : RVA(blink_riscv64) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_riscv64_size_b0 = blink_riscv64_size % 10 + 48);
-HIDDEN(blink_riscv64_size_b1 = blink_riscv64_size < 10 ? 32 : blink_riscv64_size / 10 % 10 + 48);
-HIDDEN(blink_riscv64_size_b2 = blink_riscv64_size < 100 ? 32 : blink_riscv64_size / 100 % 10 + 48);
-HIDDEN(blink_riscv64_size_b3 = blink_riscv64_size < 1000 ? 32 : blink_riscv64_size / 1000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b4 = blink_riscv64_size < 10000 ? 32 : blink_riscv64_size / 10000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b5 = blink_riscv64_size < 100000 ? 32 : blink_riscv64_size / 100000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b6 = blink_riscv64_size < 1000000 ? 32 : blink_riscv64_size / 1000000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b7 = blink_riscv64_size < 10000000 ? 32 : blink_riscv64_size / 10000000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b8 = blink_riscv64_size < 100000000 ? 32 : blink_riscv64_size / 100000000 % 10 + 48);
-HIDDEN(blink_riscv64_size_b9 = blink_riscv64_size < 1000000000 ? 32 : blink_riscv64_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_mipsel_b0 = RVA(blink_mipsel) % 10 + 48);
-HIDDEN(blink_mipsel_b1 = RVA(blink_mipsel) < 10 ? 32 : RVA(blink_mipsel) / 10 % 10 + 48);
-HIDDEN(blink_mipsel_b2 = RVA(blink_mipsel) < 100 ? 32 : RVA(blink_mipsel) / 100 % 10 + 48);
-HIDDEN(blink_mipsel_b3 = RVA(blink_mipsel) < 1000 ? 32 : RVA(blink_mipsel) / 1000 % 10 + 48);
-HIDDEN(blink_mipsel_b4 = RVA(blink_mipsel) < 10000 ? 32 : RVA(blink_mipsel) / 10000 % 10 + 48);
-HIDDEN(blink_mipsel_b5 = RVA(blink_mipsel) < 100000 ? 32 : RVA(blink_mipsel) / 100000 % 10 + 48);
-HIDDEN(blink_mipsel_b6 = RVA(blink_mipsel) < 1000000 ? 32 : RVA(blink_mipsel) / 1000000 % 10 + 48);
-HIDDEN(blink_mipsel_b7 = RVA(blink_mipsel) < 10000000 ? 32 : RVA(blink_mipsel) / 10000000 % 10 + 48);
-HIDDEN(blink_mipsel_b8 = RVA(blink_mipsel) < 100000000 ? 32 : RVA(blink_mipsel) / 100000000 % 10 + 48);
-HIDDEN(blink_mipsel_b9 = RVA(blink_mipsel) < 1000000000 ? 32 : RVA(blink_mipsel) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_mipsel_size_b0 = blink_mipsel_size % 10 + 48);
-HIDDEN(blink_mipsel_size_b1 = blink_mipsel_size < 10 ? 32 : blink_mipsel_size / 10 % 10 + 48);
-HIDDEN(blink_mipsel_size_b2 = blink_mipsel_size < 100 ? 32 : blink_mipsel_size / 100 % 10 + 48);
-HIDDEN(blink_mipsel_size_b3 = blink_mipsel_size < 1000 ? 32 : blink_mipsel_size / 1000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b4 = blink_mipsel_size < 10000 ? 32 : blink_mipsel_size / 10000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b5 = blink_mipsel_size < 100000 ? 32 : blink_mipsel_size / 100000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b6 = blink_mipsel_size < 1000000 ? 32 : blink_mipsel_size / 1000000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b7 = blink_mipsel_size < 10000000 ? 32 : blink_mipsel_size / 10000000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b8 = blink_mipsel_size < 100000000 ? 32 : blink_mipsel_size / 100000000 % 10 + 48);
-HIDDEN(blink_mipsel_size_b9 = blink_mipsel_size < 1000000000 ? 32 : blink_mipsel_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_powerpc64le_b0 = RVA(blink_powerpc64le) % 10 + 48);
-HIDDEN(blink_powerpc64le_b1 = RVA(blink_powerpc64le) < 10 ? 32 : RVA(blink_powerpc64le) / 10 % 10 + 48);
-HIDDEN(blink_powerpc64le_b2 = RVA(blink_powerpc64le) < 100 ? 32 : RVA(blink_powerpc64le) / 100 % 10 + 48);
-HIDDEN(blink_powerpc64le_b3 = RVA(blink_powerpc64le) < 1000 ? 32 : RVA(blink_powerpc64le) / 1000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b4 = RVA(blink_powerpc64le) < 10000 ? 32 : RVA(blink_powerpc64le) / 10000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b5 = RVA(blink_powerpc64le) < 100000 ? 32 : RVA(blink_powerpc64le) / 100000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b6 = RVA(blink_powerpc64le) < 1000000 ? 32 : RVA(blink_powerpc64le) / 1000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b7 = RVA(blink_powerpc64le) < 10000000 ? 32 : RVA(blink_powerpc64le) / 10000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b8 = RVA(blink_powerpc64le) < 100000000 ? 32 : RVA(blink_powerpc64le) / 100000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_b9 = RVA(blink_powerpc64le) < 1000000000 ? 32 : RVA(blink_powerpc64le) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_powerpc64le_size_b0 = blink_powerpc64le_size % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b1 = blink_powerpc64le_size < 10 ? 32 : blink_powerpc64le_size / 10 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b2 = blink_powerpc64le_size < 100 ? 32 : blink_powerpc64le_size / 100 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b3 = blink_powerpc64le_size < 1000 ? 32 : blink_powerpc64le_size / 1000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b4 = blink_powerpc64le_size < 10000 ? 32 : blink_powerpc64le_size / 10000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b5 = blink_powerpc64le_size < 100000 ? 32 : blink_powerpc64le_size / 100000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b6 = blink_powerpc64le_size < 1000000 ? 32 : blink_powerpc64le_size / 1000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b7 = blink_powerpc64le_size < 10000000 ? 32 : blink_powerpc64le_size / 10000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b8 = blink_powerpc64le_size < 100000000 ? 32 : blink_powerpc64le_size / 100000000 % 10 + 48);
-HIDDEN(blink_powerpc64le_size_b9 = blink_powerpc64le_size < 1000000000 ? 32 : blink_powerpc64le_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_powerpc_b0 = RVA(blink_powerpc) % 10 + 48);
-HIDDEN(blink_powerpc_b1 = RVA(blink_powerpc) < 10 ? 32 : RVA(blink_powerpc) / 10 % 10 + 48);
-HIDDEN(blink_powerpc_b2 = RVA(blink_powerpc) < 100 ? 32 : RVA(blink_powerpc) / 100 % 10 + 48);
-HIDDEN(blink_powerpc_b3 = RVA(blink_powerpc) < 1000 ? 32 : RVA(blink_powerpc) / 1000 % 10 + 48);
-HIDDEN(blink_powerpc_b4 = RVA(blink_powerpc) < 10000 ? 32 : RVA(blink_powerpc) / 10000 % 10 + 48);
-HIDDEN(blink_powerpc_b5 = RVA(blink_powerpc) < 100000 ? 32 : RVA(blink_powerpc) / 100000 % 10 + 48);
-HIDDEN(blink_powerpc_b6 = RVA(blink_powerpc) < 1000000 ? 32 : RVA(blink_powerpc) / 1000000 % 10 + 48);
-HIDDEN(blink_powerpc_b7 = RVA(blink_powerpc) < 10000000 ? 32 : RVA(blink_powerpc) / 10000000 % 10 + 48);
-HIDDEN(blink_powerpc_b8 = RVA(blink_powerpc) < 100000000 ? 32 : RVA(blink_powerpc) / 100000000 % 10 + 48);
-HIDDEN(blink_powerpc_b9 = RVA(blink_powerpc) < 1000000000 ? 32 : RVA(blink_powerpc) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_powerpc_size_b0 = blink_powerpc_size % 10 + 48);
-HIDDEN(blink_powerpc_size_b1 = blink_powerpc_size < 10 ? 32 : blink_powerpc_size / 10 % 10 + 48);
-HIDDEN(blink_powerpc_size_b2 = blink_powerpc_size < 100 ? 32 : blink_powerpc_size / 100 % 10 + 48);
-HIDDEN(blink_powerpc_size_b3 = blink_powerpc_size < 1000 ? 32 : blink_powerpc_size / 1000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b4 = blink_powerpc_size < 10000 ? 32 : blink_powerpc_size / 10000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b5 = blink_powerpc_size < 100000 ? 32 : blink_powerpc_size / 100000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b6 = blink_powerpc_size < 1000000 ? 32 : blink_powerpc_size / 1000000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b7 = blink_powerpc_size < 10000000 ? 32 : blink_powerpc_size / 10000000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b8 = blink_powerpc_size < 100000000 ? 32 : blink_powerpc_size / 100000000 % 10 + 48);
-HIDDEN(blink_powerpc_size_b9 = blink_powerpc_size < 1000000000 ? 32 : blink_powerpc_size / 1000000000 % 10 + 48);
-
-HIDDEN(blink_s390x_b0 = RVA(blink_s390x) % 10 + 48);
-HIDDEN(blink_s390x_b1 = RVA(blink_s390x) < 10 ? 32 : RVA(blink_s390x) / 10 % 10 + 48);
-HIDDEN(blink_s390x_b2 = RVA(blink_s390x) < 100 ? 32 : RVA(blink_s390x) / 100 % 10 + 48);
-HIDDEN(blink_s390x_b3 = RVA(blink_s390x) < 1000 ? 32 : RVA(blink_s390x) / 1000 % 10 + 48);
-HIDDEN(blink_s390x_b4 = RVA(blink_s390x) < 10000 ? 32 : RVA(blink_s390x) / 10000 % 10 + 48);
-HIDDEN(blink_s390x_b5 = RVA(blink_s390x) < 100000 ? 32 : RVA(blink_s390x) / 100000 % 10 + 48);
-HIDDEN(blink_s390x_b6 = RVA(blink_s390x) < 1000000 ? 32 : RVA(blink_s390x) / 1000000 % 10 + 48);
-HIDDEN(blink_s390x_b7 = RVA(blink_s390x) < 10000000 ? 32 : RVA(blink_s390x) / 10000000 % 10 + 48);
-HIDDEN(blink_s390x_b8 = RVA(blink_s390x) < 100000000 ? 32 : RVA(blink_s390x) / 100000000 % 10 + 48);
-HIDDEN(blink_s390x_b9 = RVA(blink_s390x) < 1000000000 ? 32 : RVA(blink_s390x) / 1000000000 % 10 + 48);
-
-HIDDEN(blink_s390x_size_b0 = blink_s390x_size % 10 + 48);
-HIDDEN(blink_s390x_size_b1 = blink_s390x_size < 10 ? 32 : blink_s390x_size / 10 % 10 + 48);
-HIDDEN(blink_s390x_size_b2 = blink_s390x_size < 100 ? 32 : blink_s390x_size / 100 % 10 + 48);
-HIDDEN(blink_s390x_size_b3 = blink_s390x_size < 1000 ? 32 : blink_s390x_size / 1000 % 10 + 48);
-HIDDEN(blink_s390x_size_b4 = blink_s390x_size < 10000 ? 32 : blink_s390x_size / 10000 % 10 + 48);
-HIDDEN(blink_s390x_size_b5 = blink_s390x_size < 100000 ? 32 : blink_s390x_size / 100000 % 10 + 48);
-HIDDEN(blink_s390x_size_b6 = blink_s390x_size < 1000000 ? 32 : blink_s390x_size / 1000000 % 10 + 48);
-HIDDEN(blink_s390x_size_b7 = blink_s390x_size < 10000000 ? 32 : blink_s390x_size / 10000000 % 10 + 48);
-HIDDEN(blink_s390x_size_b8 = blink_s390x_size < 100000000 ? 32 : blink_s390x_size / 100000000 % 10 + 48);
-HIDDEN(blink_s390x_size_b9 = blink_s390x_size < 1000000000 ? 32 : blink_s390x_size / 1000000000 % 10 + 48);
+#endif /* APE_IS_SHELL_SCRIPT */

 #if SupportsMetal()
 HIDDEN(v_ape_realsectors =
@@ -772,7 +629,7 @@ HIDDEN(v_ape_realbytes = v_ape_realsectors * 512);
 HIDDEN(v_ape_realdwords = v_ape_realsectors * (512 / 4));
 HIDDEN(v_ape_allsectors = ROUNDUP(RVA(_ezip), 512) / 512);
 HIDDEN(v_ape_allbytes = v_ape_allsectors * 512);
-HIDDEN(v_ape_highsectors = v_ape_allsectors - v_ape_realsectors);
+HIDDEN(v_ape_highsectors = MIN(0xffff, v_ape_allsectors - v_ape_realsectors));
 TSSDESCSTUB2(_tss, _tss, _tss_end ? _tss_end - _tss - 1 : 0);
 #endif

@@ -15,9 +15,32 @@

 PKGS += APE

+APE_FILES := $(wildcard ape/*.*)
+APE_HDRS = $(filter %.h,$(APE_FILES))
+APE_INCS = $(filter %.inc,$(APE_FILES))
+
 APE =	o/$(MODE)/ape/ape.o			\
 	o/$(MODE)/ape/ape.lds

+APELINK =					\
+	$(COMPILE)				\
+	-ALINK.ape				\
+	$(LINK)					\
+	$(LINKARGS)				\
+	$(OUTPUT_OPTION)
+
+ifeq ($(ARCH), aarch64)
+
+APE_SRCS = ape/ape.S
+APE_OBJS = o/$(MODE)/ape/ape.o
+APE_NO_MODIFY_SELF = $(APE)
+APE_COPY_SELF = $(APE)
+
+.PHONY: o/$(MODE)/ape
+o/$(MODE)/ape: $(APE)
+
+else
+
 APE_NO_MODIFY_SELF =				\
 	o/$(MODE)/ape/ape.lds			\
 	o/$(MODE)/ape/ape-no-modify-self.o
@@ -26,13 +49,6 @@ APE_COPY_SELF =					\
 	o/$(MODE)/ape/ape.lds			\
 	o/$(MODE)/ape/ape-copy-self.o

-APELINK =					\
-	$(COMPILE)				\
-	-ALINK.ape				\
-	$(LINK)					\
-	$(LINKARGS)				\
-	$(OUTPUT_OPTION)
-
 APE_LOADER_FLAGS =				\
 	-DNDEBUG				\
 	-iquote.				\
@@ -49,35 +65,17 @@ APE_LOADER_FLAGS =				\
 	 $(OUTPUT_OPTION)			\
 	$<

-APE_FILES := $(wildcard ape/*.*)
-APE_HDRS = $(filter %.h,$(APE_FILES))
-APE_INCS = $(filter %.inc,$(APE_FILES))
 APE_SRCS_C = ape/loader.c
 APE_SRCS_S = $(filter %.S,$(APE_FILES))
 APE_SRCS = $(APE_SRCS_C) $(APE_SRCS_S)
 APE_OBJS = $(APE_SRCS_S:%.S=o/$(MODE)/%.o)
 APE_CHECKS = $(APE_HDRS:%=o/%.ok)

-o/$(MODE)/ape/ape.lds:				\
-		ape/ape.lds			\
-		ape/macros.internal.h		\
-		ape/relocations.h		\
-		libc/intrin/bits.h		\
-		libc/thread/tls.h		\
-		libc/calls/struct/timespec.h	\
-		libc/thread/thread.h		\
-		libc/dce.h			\
-		libc/elf/def.h			\
-		libc/elf/pf2prot.internal.h	\
-		libc/macros.internal.h		\
-		libc/nt/pedef.internal.h	\
-		libc/str/str.h			\
-		libc/zip.h
-
 o/$(MODE)/ape/public/ape.lds: OVERRIDE_CPPFLAGS += -UCOSMO
 o/$(MODE)/ape/public/ape.lds:			\
 		ape/public/ape.lds		\
 		ape/ape.lds			\
+		ape/ape.internal.h		\
 		ape/macros.internal.h		\
 		ape/relocations.h		\
 		libc/intrin/bits.h		\
@@ -96,22 +94,12 @@ o/ape/idata.inc:				\
 		ape/idata.internal.h		\
 		ape/relocations.h

-o/$(MODE)/ape/ape.o:				\
-		ape/blink-aarch64.gz		\
-		ape/blink-arm.gz		\
-		ape/blink-darwin-arm64.gz	\
-		ape/blink-i486.gz		\
-		ape/blink-mipsel.gz		\
-		ape/blink-powerpc.gz		\
-		ape/blink-powerpc64le.gz	\
-		ape/blink-riscv64.gz		\
-		ape/blink-s390x.gz
-
 o/$(MODE)/ape/ape-no-modify-self.o:		\
 		ape/ape.S			\
 		ape/macros.internal.h		\
 		ape/notice.inc			\
 		ape/relocations.h		\
+		ape/ape.internal.h		\
 		libc/dce.h			\
 		libc/elf/def.h			\
 		libc/intrin/asancodes.h		\
@@ -127,14 +115,7 @@ o/$(MODE)/ape/ape-no-modify-self.o:		\
 		libc/runtime/symbolic.h		\
 		libc/sysv/consts/prot.h		\
 		ape/blink-aarch64.gz		\
-		ape/blink-arm.gz		\
 		ape/blink-darwin-arm64.gz	\
-		ape/blink-i486.gz		\
-		ape/blink-mipsel.gz		\
-		ape/blink-powerpc.gz		\
-		ape/blink-powerpc64le.gz	\
-		ape/blink-riscv64.gz		\
-		ape/blink-s390x.gz		\
 		o/$(MODE)/ape/ape.elf
 	@$(COMPILE)				\
 		-AOBJECTIFY.S			\
@@ -148,6 +129,7 @@ o/$(MODE)/ape/ape-copy-self.o:			\
 		ape/macros.internal.h		\
 		ape/notice.inc			\
 		ape/relocations.h		\
+		ape/ape.internal.h		\
 		libc/dce.h			\
 		libc/elf/def.h			\
 		libc/intrin/asancodes.h		\
@@ -163,14 +145,7 @@ o/$(MODE)/ape/ape-copy-self.o:			\
 		libc/runtime/symbolic.h		\
 		libc/sysv/consts/prot.h		\
 		ape/blink-aarch64.gz		\
-		ape/blink-arm.gz		\
-		ape/blink-darwin-arm64.gz	\
-		ape/blink-i486.gz		\
-		ape/blink-mipsel.gz		\
-		ape/blink-powerpc.gz		\
-		ape/blink-powerpc64le.gz	\
-		ape/blink-riscv64.gz		\
-		ape/blink-s390x.gz
+		ape/blink-darwin-arm64.gz
 	@$(COMPILE)				\
 		-AOBJECTIFY.S			\
 		$(OBJECTIFY.S)			\
@@ -215,3 +190,30 @@ o/$(MODE)/ape:	$(APE_CHECKS)			\
 		o/$(MODE)/ape/ape.macho		\
 		o/$(MODE)/ape/ape-copy-self.o	\
 		o/$(MODE)/ape/ape-no-modify-self.o
+
+endif
+
+# these assembly files are safe to build on aarch64
+o/$(MODE)/ape/ape.o: ape/ape.S
+	@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
+
+o/$(MODE)/ape/ape.o:				\
+		ape/blink-aarch64.gz		\
+		ape/blink-darwin-arm64.gz
+
+o/$(MODE)/ape/ape.lds:				\
+		ape/ape.lds			\
+		ape/macros.internal.h		\
+		ape/relocations.h		\
+		ape/ape.internal.h		\
+		libc/intrin/bits.h		\
+		libc/thread/tls.h		\
+		libc/calls/struct/timespec.h	\
+		libc/thread/thread.h		\
+		libc/dce.h			\
+		libc/elf/def.h			\
+		libc/elf/pf2prot.internal.h	\
+		libc/macros.internal.h		\
+		libc/nt/pedef.internal.h	\
+		libc/str/str.h			\
+		libc/zip.h
@@ -32,6 +32,7 @@
 //	@see	ape/ape.lds
 //	@see	winimp
 .macro	.imp	dll:req fn:req actual:req hint
+#ifdef __x86_64__
 	.dll	"\dll"
 	.section ".piro.data.sort.iat.2.\dll\().2.\actual","aw",@progbits
 	.type	\fn,@object
@@ -49,18 +50,25 @@
 	.previous
 	.section ".idata.ro.hnt.\dll\().2.\actual","a",@progbits
 "\dll\().\actual":
-	.ifnb	\hint			# hint i.e. guess function ordinal
+	.ifnb	\hint			// hint i.e. guess function ordinal
 	.short	\hint
 	.else
 	.short	0
 	.endif
 	.asciz	"\actual"
-	.align	2			# documented requirement
+	.align	2			// documented requirement
 	.globl	"\dll\().\actual"
 	.hidden	"\dll\().\actual"
 	.type	"\dll\().\actual",@object
 	.size	"\dll\().\actual",.-"\dll\().\actual"
 	.previous
+#else
+	.section ".data.nt.\actual","aw",@progbits
+	.globl	"\fn"
+	.balign	8
+	.weak	"\actual"
+"\fn":	.quad	"\actual"
+#endif
 .endm

 //	Defines DLL import.
@@ -68,11 +76,11 @@
 .macro	.dll	name:req
  .section ".idata.ro.idt.2.\name","aG",@progbits,"\name",comdat
 	.equ	".Lidata.idt.\name",.
-	.long	RVA("idata.ilt.\name")		# ImportLookupTable
-	.long	0				# TimeDateStamp
-	.long	0				# ForwarderChain
-	.long	RVA(".Lidata.str.\name")	# DllNameRva
-	.long	RVA("idata.iat.\name")		# ImportAddressTable
+	.long	RVA("idata.ilt.\name")		// ImportLookupTable
+	.long	0				// TimeDateStamp
+	.long	0				// ForwarderChain
+	.long	RVA(".Lidata.str.\name")	// DllNameRva
+	.long	RVA("idata.iat.\name")		// ImportAddressTable
 	.type	".Lidata.idt.\name",@object
 	.size	".Lidata.idt.\name",.-".Lidata.idt.\name"
  .previous
@@ -25,7 +25,7 @@
 //	APE Loader Executable Structure
 //	Linux, FreeBSD, NetBSD, OpenBSD

-	.align	8
+	.balign	8
 ehdr:	.ascii	"\177ELF"
 	.byte	ELFCLASS64
 	.byte	ELFDATA2LSB
@@ -47,7 +47,7 @@ ehdr:	.ascii	"\177ELF"
 	.word	0			# e_shstrndx
 	.endobj	ehdr,globl

-	.align	8
+	.balign	8
 phdrs:	.long	PT_LOAD			# p_type
 	.long	PF_R|PF_X		# p_flags
 	.quad	0			# p_offset
@@ -89,18 +89,18 @@ note:	.long	2f-1f
 	.long	4f-3f
 	.long	1
 1:	.asciz	"OpenBSD"
-2:	.align	4
+2:	.balign	4
 3:	.long	0
 4:	.long	2f-1f
 	.long	4f-3f
 	.long	1
 1:	.asciz	"NetBSD"
-2:	.align	4
+2:	.balign	4
 3:	.long	901000000
 4:	.endobj	note
 	notesize = . - note

-	.align	64,0				# for ape.S dd
+	.balign	64,0				# for ape.S dd
 	.org	0x180				# for ape.S dd

 //	APE Loader XNU Header
@@ -197,7 +197,7 @@ macho:	.long	0xFEEDFACE+1
 60:
 	.endobj	macho

-	.align	64,0				# for ape.S dd
+	.balign	64,0				# for ape.S dd
 	.org	0x400				# for ape.S dd

 //	Ape Loader Entrpoint
@@ -23,7 +23,7 @@

 //	APE Loader Executable Structure for XNU

-	.align	4096
+	.balign	4096
 macho:	.long	0xFEEDFACE+1
 	.long	MAC_CPU_NEXGEN32E
 	.long	MAC_CPU_NEXGEN32E_ALL
@@ -112,7 +112,7 @@ macho:	.long	0xFEEDFACE+1
 60:
 	.endobj	macho,globl

-	.align	64
+	.balign	64
 _start:

 //	Hack for detecting M1 Rosetta environment.
@@ -17,6 +17,11 @@ CONFIG_CPPFLAGS += -DSYSDEBUG
 TARGET_ARCH ?= -msse3
 endif

+ifeq ($(MODE), aarch64)
+CONFIG_CCFLAGS += -O2 $(BACKTRACES) #$(FTRACE)
+CONFIG_CPPFLAGS += -DSYSDEBUG
+endif
+
 # Fast Build Mode
 #
 #   - `make MODE=fastbuild`
@@ -27,7 +32,7 @@ endif
 #   - Limited Backtraces
 #   - Compiles 28% faster
 #
-ifeq ($(MODE),fastbuild)
+ifeq ($(MODE), fastbuild)
 CONFIG_CCFLAGS += $(BACKTRACES) $(FTRACE) -O
 CONFIG_CPPFLAGS += -DSYSDEBUG -DDWARFLESS
 CONFIG_OFLAGS += -g0
@@ -180,6 +185,31 @@ PYFLAGS +=				\
 	-B
 endif

+ifeq ($(MODE), aarch64-tiny)
+CONFIG_CPPFLAGS +=			\
+	-DTINY				\
+	-DNDEBUG			\
+	-DTRUSTWORTHY
+CONFIG_CCFLAGS +=			\
+	-Os				\
+	-fno-align-functions		\
+	-fno-align-jumps		\
+	-fno-align-labels		\
+	-fno-align-loops		\
+	-fschedule-insns2		\
+	-fomit-frame-pointer		\
+	-momit-leaf-frame-pointer	\
+	-foptimize-sibling-calls	\
+	-DDWARFLESS
+CONFIG_OFLAGS +=			\
+	-g0
+CONFIG_LDFLAGS +=			\
+	-S
+PYFLAGS +=				\
+	-O2				\
+	-B
+endif
+
 # Linux-Only Tiny Mode
 #
 #   - `make MODE=tinylinux`
@@ -56,6 +56,7 @@ TMPDIR = o/tmp
 AR = build/bootstrap/ar.com
 CP = build/bootstrap/cp.com
 RM = build/bootstrap/rm.com -f
+GZIP = build/bootstrap/gzip.com
 ECHO = build/bootstrap/echo.com
 TOUCH = build/bootstrap/touch.com
 PKG = build/bootstrap/package.com
@@ -72,12 +73,22 @@ IMAGE_BASE_VIRTUAL ?= 0x400000
 IGNORE := $(shell $(ECHO) -2 ♥cosmo)
 IGNORE := $(shell $(MKDIR) o/tmp)

+ifneq ($(findstring aarch64,$(MODE)),)
+ARCH = aarch64
+VM = o/third_party/qemu/qemu-aarch64
+else
+ARCH = x86_64
+endif
+
 ifneq ("$(wildcard o/third_party/gcc/bin/x86_64-pc-linux-gnu-*)","")
 PREFIX = o/third_party/gcc/bin/x86_64-pc-linux-gnu-
 else
 IGNORE := $(shell build/bootstrap/unbundle.com)
 PREFIX = o/third_party/gcc/bin/x86_64-linux-musl-
 endif
+ifeq ($(ARCH), aarch64)
+PREFIX = o/third_party/gcc/bin/aarch64-linux-musl-
+endif

 AS = $(PREFIX)as
 CC = $(PREFIX)gcc
@@ -104,20 +115,27 @@ else
 TMPSAFE = $(TMPDIR)/
 endif

+ifneq ($(ARCH), aarch64)
+MNO_FENTRY = -mno-fentry
+endif
+
 FTRACE =								\
 	-pg

 BACKTRACES =								\
-	-fno-schedule-insns2						\
 	-fno-omit-frame-pointer						\
 	-fno-optimize-sibling-calls					\
 	-mno-omit-leaf-frame-pointer

+ifneq ($(ARCH), aarch64)
+BACKTRACES += -fno-schedule-insns2
+endif
+
 SANITIZER =								\
 	-fsanitize=address

 NO_MAGIC =								\
-	-mno-fentry							\
+	$(MNO_FENTRY)							\
 	-fno-stack-protector						\
 	-fwrapv								\
 	-fno-sanitize=all
@@ -143,17 +161,20 @@ DEFAULT_OFLAGS =							\
 	-gdescribe-dies

 DEFAULT_COPTS =								\
-	-mno-red-zone							\
 	-fno-math-errno							\
-	-fno-trapping-math						\
 	-fno-fp-int-builtin-inexact					\
 	-fno-ident							\
 	-fno-common							\
 	-fno-gnu-unique							\
 	-fstrict-aliasing						\
 	-fstrict-overflow						\
-	-fno-semantic-interposition					\
+	-fno-semantic-interposition
+
+ifneq ($(ARCH), aarch64)
+DEFAULT_COPTS +=							\
+	-mno-red-zone							\
 	-mno-tls-direct-seg-refs
+endif

 MATHEMATICAL =								\
 	-O3								\
@@ -187,7 +208,6 @@ DEFAULT_ASFLAGS =							\
 DEFAULT_LDFLAGS =							\
 	-static								\
 	-nostdlib							\
-	-melf_x86_64							\
 	--gc-sections							\
 	--build-id=none							\
 	--no-dynamic-linker						\
@@ -324,7 +344,7 @@ OBJECTIFY.greg.c =							\
 	-fno-optimize-sibling-calls					\
 	-fno-sanitize=all						\
 	-ffreestanding							\
-	-mno-fentry							\
+	$(MNO_FENTRY)							\
 	-fwrapv								\
 	-c

@@ -364,7 +384,7 @@ OBJECTIFY.ncabi.c =							\
 	$(OBJECTIFY.c.flags)						\
 	-mno-sse							\
 	-mfpmath=387							\
-	-mno-fentry							\
+	$(MNO_FENTRY)							\
 	-fno-stack-protector						\
 	-fno-instrument-functions					\
 	-fno-optimize-sibling-calls					\
@@ -383,7 +403,7 @@ OBJECTIFY.ncabi.c =							\
 OBJECTIFY.initabi.c =							\
 	$(GCC)								\
 	$(OBJECTIFY.c.flags)						\
-	-mno-fentry							\
+	$(MNO_FENTRY)							\
 	-fno-stack-protector						\
 	-fno-instrument-functions					\
 	-fno-optimize-sibling-calls					\
@@ -0,0 +1,7 @@
+#!/bin/sh
+for last; do true; done
+if printf '%s\n' "$last" | grep aarch64 >/dev/null 2>&1; then
+  exec o/third_party/gcc/bin/aarch64-linux-musl-objdump "$@"
+else
+  exec o/third_party/gcc/bin/x86_64-linux-musl-objdump "$@"
+fi
@@ -16,25 +16,14 @@

 MAKEFLAGS += --no-builtin-rules

-o/%.o: %.s                         ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
-o/%.o: o/%.s                       ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
-o/%.s: %.S                         ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) $<
-o/%.s: o/%.S                       ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) $<
-o/%.o: %.S                         ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
-o/%.o: o/%.S                       ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
 o/%.lds: %.lds                     ; @$(COMPILE) -APREPROCESS $(PREPROCESS.lds) $(OUTPUT_OPTION) $<
 o/%.inc: %.h                       ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) -D__ASSEMBLER__ -P $<
 o/%.greg.o: %.greg.c               ; @$(COMPILE) -AOBJECTIFY.greg $(OBJECTIFY.greg.c) $(OUTPUT_OPTION) $<
-
 o/$(MODE)/%: o/$(MODE)/%.dbg       ; @$(COMPILE) -AOBJCOPY -T$@ $(OBJCOPY) -S -O binary $< $@
-o/$(MODE)/%.o: %.s                 ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
-o/$(MODE)/%.o: o/$(MODE)/%.s       ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.o: %.f                 ; @$(COMPILE) -AOBJECTIFY.f $(OBJECTIFY.f) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.o: %.F                 ; @$(COMPILE) -AOBJECTIFY.F $(OBJECTIFY.F) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.h: %.c                 ; @$(COMPILE) -AAMALGAMATE $(PREPROCESS) $(OUTPUT_OPTION) -fdirectives-only -P $<
 o/$(MODE)/%.h: o/$(MODE)/%.c       ; @$(COMPILE) -AAMALGAMATE $(PREPROCESS) $(OUTPUT_OPTION) -fdirectives-only -P $<
-o/$(MODE)/%.o: %.S                 ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
-o/$(MODE)/%.o: o/$(MODE)/%.S       ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.o: %.cc                ; @$(COMPILE) -AOBJECTIFY.cxx $(OBJECTIFY.cxx) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.lds: %.lds             ; @$(COMPILE) -APREPROCESS $(PREPROCESS.lds) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.o: %.greg.c            ; @$(COMPILE) -AOBJECTIFY.greg $(OBJECTIFY.greg.c) $(OUTPUT_OPTION) $<
@@ -43,6 +32,30 @@ o/$(MODE)/%.initabi.o: %.initabi.c ; @$(COMPILE) -AOBJECTIFY.init $(OBJECTIFY.in
 o/$(MODE)/%.ncabi.o: %.ncabi.c     ; @$(COMPILE) -AOBJECTIFY.nc $(OBJECTIFY.ncabi.c) $(OUTPUT_OPTION) $<
 o/$(MODE)/%.real.o: %.c            ; @$(COMPILE) -AOBJECTIFY.real $(OBJECTIFY.real.c) $(OUTPUT_OPTION) $<

+ifneq ($(ARCH), aarch64)
+o/%.o: %.s                         ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
+o/%.o: o/%.s                       ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
+o/%.s: %.S                         ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) $<
+o/%.s: o/%.S                       ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) $<
+o/%.o: %.S                         ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
+o/%.o: o/%.S                       ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
+o/$(MODE)/%.o: %.s                 ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
+o/$(MODE)/%.o: o/$(MODE)/%.s       ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) $<
+o/$(MODE)/%.o: %.S                 ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
+o/$(MODE)/%.o: o/$(MODE)/%.S       ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) $<
+else
+o/%.o: %.s libc/empty.s                   ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/%.o: o/%.s libc/empty.s                 ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/%.s: %.S libc/empty.s                   ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) libc/empty.s
+o/%.s: o/%.S libc/empty.s                 ; @$(COMPILE) -APREPROCESS $(PREPROCESS) $(OUTPUT_OPTION) libc/empty.s
+o/%.o: %.S libc/empty.s                   ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/%.o: o/%.S libc/empty.s                 ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/$(MODE)/%.o: %.s libc/empty.s           ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/$(MODE)/%.o: o/$(MODE)/%.s libc/empty.s ; @$(COMPILE) -AOBJECTIFY.s $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/$(MODE)/%.o: %.S libc/empty.s           ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+o/$(MODE)/%.o: o/$(MODE)/%.S libc/empty.s ; @$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.s) $(OUTPUT_OPTION) libc/empty.s
+endif
+
 o/%.o: %.cc
 	@$(COMPILE) -AOBJECTIFY.cxx $(OBJECTIFY.cxx) $(OUTPUT_OPTION) $<
 	@$(COMPILE) -AFIXUPOBJ -wT$@ $(FIXUPOBJ) $@
@@ -129,8 +142,8 @@ o/$(MODE)/%: o/$(MODE)/%.com o/$(MODE)/tool/build/cp.com o/$(MODE)/tool/build/as
 # then the stdout/stderr output, which would normally be suppressed,
 # will actually be displayed.

-o/$(MODE)/%.runs: o/$(MODE)/%
-	@$(COMPILE) -ACHECK -wtT$@ $< $(TESTARGS)
+o/$(MODE)/%.runs: o/$(MODE)/% $(VM)
+	@$(COMPILE) -ACHECK -wtT$@ $(VM) $< $(TESTARGS)

 ################################################################################
 # ELF ZIP FILES
@@ -0,0 +1,10 @@
+#!/bin/sh
+for last; do true; done
+if printf '%s\n' "$last" | grep aarch64 >/dev/null 2>&1; then
+  if [ ! -f o/third_party/qemu/qemu-aarch64 ]; then
+    make -j8 o/third_party/qemu/qemu-aarch64
+  fi
+  exec o/third_party/qemu/qemu-aarch64 "$@"
+else
+  exec "$@"
+fi
@@ -17,7 +17,7 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/macros.internal.h"
-.align	16
+.balign	16

 //	Mixes audio.
 //
@@ -32,7 +32,6 @@
 #include "dsp/mpeg/idct.h"
 #include "dsp/mpeg/mpeg.h"
 #include "dsp/mpeg/video.h"
-#include "libc/intrin/initializer.internal.h"
 #include "libc/fmt/conv.h"
 #include "libc/log/log.h"
 #include "libc/macros.internal.h"
@@ -90,7 +90,8 @@ int ttyident(struct TtyIdent *ti, int ttyinfd, int ttyoutfd) {
                           : _weaken(malloc)(sizeof(struct TtyIdent))))) {
          memcpy(ti->next, &outer, sizeof(outer));
        } else {
-          free_s(&ti->next);
+          free(ti->next);
+          ti->next = 0;
        }
      }
      ttyrestore(ttyinfd, &old);
@@ -26,7 +26,7 @@ static void ttyidentfree(struct TtyIdent *ti) {
  if (ti) {
    assert(ti != ti->next);
    ttyidentfree(ti->next);
-    free_s(&ti);
+    free(ti);
  }
 }

@@ -1,21 +1,22 @@
 #ifndef COSMOPOLITAN_DSP_TTY_INTERNAL_H_
 #define COSMOPOLITAN_DSP_TTY_INTERNAL_H_
+#include "dsp/tty/quant.h"
 #include "dsp/tty/ttyrgb.h"
-#include "libc/intrin/xmmintrin.internal.h"
+#include "third_party/intel/xmmintrin.internal.h"
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_

-struct TtyRgb rgb2tty24f_(__m128);
-struct TtyRgb rgb2ttyf2i_(__m128);
+struct TtyRgb rgb2tty24f_(ttyrgb_m128);
+struct TtyRgb rgb2ttyf2i_(ttyrgb_m128);
 struct TtyRgb rgb2ttyi2f_(int, int, int);
 struct TtyRgb rgb2ansi_(int, int, int);
 struct TtyRgb rgb2ansihash_(int, int, int);
 struct TtyRgb rgb2xterm24_(int, int, int);
-struct TtyRgb rgb2xterm256gray_(__m128);
+struct TtyRgb rgb2xterm256gray_(ttyrgb_m128);
 struct TtyRgb tty2rgb_(struct TtyRgb);
 struct TtyRgb tty2rgb24_(struct TtyRgb);
-__m128 tty2rgbf_(struct TtyRgb);
-__m128 tty2rgbf24_(struct TtyRgb);
+ttyrgb_m128 tty2rgbf_(struct TtyRgb);
+ttyrgb_m128 tty2rgbf24_(struct TtyRgb);

 char *setbg16_(char *, struct TtyRgb);
 char *setfg16_(char *, struct TtyRgb);
@@ -18,7 +18,6 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "dsp/tty/itoa8.h"
 #include "libc/intrin/bits.h"
-#include "libc/intrin/initializer.internal.h"
 #include "libc/str/str.h"

 struct Itoa8 kItoa8;
@@ -3,7 +3,6 @@
 #include "dsp/tty/ttyrgb.h"
 #include "libc/assert.h"
 #include "libc/intrin/bits.h"
-#include "libc/intrin/xmmintrin.internal.h"
 #include "libc/limits.h"
 #include "libc/str/str.h"
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
@@ -14,12 +13,14 @@ COSMOPOLITAN_C_START_
 #define BL 2
 #define BR 3

-typedef __m128 (*tty2rgbf_f)(struct TtyRgb);
+typedef float ttyrgb_m128 __attribute__((__vector_size__(16), __may_alias__));
+
+typedef ttyrgb_m128 (*tty2rgbf_f)(struct TtyRgb);
 typedef char *(*setbg_f)(char *, struct TtyRgb);
 typedef char *(*setbgfg_f)(char *, struct TtyRgb, struct TtyRgb);
 typedef char *(*setfg_f)(char *, struct TtyRgb);
 typedef struct TtyRgb (*rgb2tty_f)(int, int, int);
-typedef struct TtyRgb (*rgb2ttyf_f)(__m128);
+typedef struct TtyRgb (*rgb2ttyf_f)(ttyrgb_m128);
 typedef struct TtyRgb (*tty2rgb_f)(struct TtyRgb);
 typedef struct TtyRgb ttypalette_t[2][8];

@@ -19,7 +19,6 @@
 #include "dsp/core/core.h"
 #include "dsp/tty/quant.h"
 #include "libc/assert.h"
-#include "libc/intrin/initializer.internal.h"
 #include "libc/limits.h"
 #include "libc/log/log.h"
 #include "libc/macros.internal.h"
@@ -40,9 +39,9 @@ struct TtyRgb tty2rgb_(struct TtyRgb rgbxt) {
  return g_ansi2rgb_[rgbxt.xt];
 }

-__m128 tty2rgbf_(struct TtyRgb rgbxt) {
+ttyrgb_m128 tty2rgbf_(struct TtyRgb rgbxt) {
  rgbxt = g_ansi2rgb_[rgbxt.xt];
-  return (__m128){(int)rgbxt.r, (int)rgbxt.g, (int)rgbxt.b} / 255;
+  return (ttyrgb_m128){(int)rgbxt.r, (int)rgbxt.g, (int)rgbxt.b} / 255;
 }

 static int rgb2xterm256_(int r, int g, int b) {
@@ -17,12 +17,11 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "dsp/tty/quant.h"
-#include "libc/intrin/xmmintrin.internal.h"

-struct TtyRgb rgb2ttyf2i_(__m128 rgb) {
-  __v4si i4;
+typedef int ttyrgb_i4 __attribute__((__vector_size__(16)));
+
+struct TtyRgb rgb2ttyf2i_(ttyrgb_m128 rgb) {
  rgb *= 255;
-  /* i4 = __builtin_ia32_cvtps2dq(rgb); */
-  asm("cvttps2dq\t%0,%1" : "+%x"(rgb), "=x"(i4));
-  return rgb2tty(i4[0], i4[1], i4[2]);
+  ttyrgb_i4 rgbi = {rgb[0], rgb[1], rgb[2], rgb[3]};
+  return rgb2tty(rgbi[0], rgbi[1], rgbi[2]);
 }
@@ -21,5 +21,5 @@
 #include "libc/macros.internal.h"

 struct TtyRgb rgb2ttyi2f_(int r, int g, int b) {
-  return rgb2ttyf((__m128){r, g, b} / 255);
+  return rgb2ttyf((ttyrgb_m128){r, g, b} / 255);
 }
@@ -17,25 +17,24 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "dsp/tty/quant.h"
+#include "libc/macros.internal.h"
 #include "libc/math.h"
+#include "third_party/intel/xmmintrin.internal.h"

-/*
-struct TtyRgb rgb2tty24f_(__m128 rgb) {
-  const __v4si kMax = {255, 255, 255, 255};
-  const __v4si kMin = {0, 0, 0, 0};
-  struct TtyRgb res;
-  __v4si rgb255;
-  rgb255 = _mm_min_ps(_mm_max_ps(_mm_cvtps_epi32(rgb * 255), kMin), kMax);
-  res = (struct TtyRgb){rgb255[0], rgb255[1], rgb255[2], rgb255[3]};
-  return res;
-}
-*/
-
-struct TtyRgb rgb2tty24f_(__m128 rgb) {
-  const __m128 kMax = {1, 1, 1, 1};
-  const __m128 kMin = {0, 0, 0, 0};
+struct TtyRgb rgb2tty24f_(ttyrgb_m128 rgb) {
+#ifdef __x86_64__
+  const ttyrgb_m128 kMax = {1, 1, 1, 1};
+  const ttyrgb_m128 kMin = {0, 0, 0, 0};
  struct TtyRgb res;
  rgb = _mm_min_ps(_mm_max_ps(rgb, kMin), kMax) * 255;
  res = (struct TtyRgb){rgb[0], rgb[1], rgb[2], rgb[3]};
  return res;
+#else
+  return (struct TtyRgb){
+      MAX(0, MIN(1, rgb[0])) * 255,
+      MAX(0, MIN(1, rgb[1])) * 255,
+      MAX(0, MIN(1, rgb[2])) * 255,
+      MAX(0, MIN(1, rgb[3])) * 255,
+  };
+#endif
 }
@@ -30,13 +30,17 @@
 * @param ti comes from ttyident() and null means no-op
 */
 int ttysendtitle(int ttyfd, const char *title, const struct TtyIdent *ti) {
+  int res;
  if (ti) {
+    char *p;
    if (ti->id == kTtyIdScreen) {
-      return ttysend(ttyfd, gc(xstrcat("\eP\e]0;", title, "\a\e\\")));
+      res = ttysend(ttyfd, (p = xstrcat("\eP\e]0;", title, "\a\e\\")));
    } else {
-      return ttysend(ttyfd, gc(xstrcat("\e]0;", title, "\a")));
+      res = ttysend(ttyfd, (p = xstrcat("\e]0;", title, "\a")));
    }
+    free(p);
  } else {
-    return 0;
+    res = 0;
  }
+  return res;
 }
@@ -18,6 +18,6 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "dsp/tty/quant.h"

-__m128 tty2rgbf24_(struct TtyRgb rgbxt) {
-  return (__m128){(int)rgbxt.r, (int)rgbxt.g, (int)rgbxt.b} / 255;
+ttyrgb_m128 tty2rgbf24_(struct TtyRgb rgbxt) {
+  return (ttyrgb_m128){(int)rgbxt.r, (int)rgbxt.g, (int)rgbxt.b} / 255;
 }
@@ -45,6 +45,8 @@ void ttyhisto(uint32_t histogram[hasatleast 256],
      histogram[xtcolors[i * 8]]++;
    }
  }
-  imapxlatab(dominant);
+  for (i = 0; i < 256; ++i) {
+    dominant[i] = i;
+  }
  qsort_r(dominant, 256, 1, (void *)histcmp, histogram);
 }
@@ -18,7 +18,6 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "dsp/tty/internal.h"
 #include "dsp/tty/quant.h"
-#include "libc/intrin/initializer.internal.h"
 #include "libc/dce.h"
 #include "libc/runtime/runtime.h"
 #include "libc/stdio/stdio.h"
@@ -89,6 +89,7 @@ EXAMPLES_DIRECTDEPS =								\
 	THIRD_PARTY_SED								\
 	THIRD_PARTY_STB								\
 	THIRD_PARTY_TR								\
+	THIRD_PARTY_VQSORT							\
 	THIRD_PARTY_XED								\
 	THIRD_PARTY_ZLIB							\
 	TOOL_BUILD_LIB								\
@@ -183,11 +184,10 @@ o/$(MODE)/usr/share/dict/words.zip.o: private ZIPOBJ_FLAGS += -C2

 $(EXAMPLES_OBJS): examples/examples.mk

-o/$(MODE)/usr/share/dict/words:							\
-		usr/share/dict/words.gz						\
-		o/$(MODE)/tool/build/gzip.com
+o/$(MODE)/usr/share/dict/words:					\
+		usr/share/dict/words.gz
 	@$(MKDIR) $(@D)
-	@o/$(MODE)/tool/build/gzip.com $(ZFLAGS) -cd <$< >$@
+	@$(GZIP) $(ZFLAGS) -cd <$< >$@

 ################################################################################

@@ -1,62 +0,0 @@
-#if 0
-/*─────────────────────────────────────────────────────────────────╗
-│ To the extent possible under law, Justine Tunney has waived      │
-│ all copyright and related or neighboring rights to this file,    │
-│ as it is written in the following disclaimers:                   │
-│   • http://unlicense.org/                                        │
-│   • http://creativecommons.org/publicdomain/zero/1.0/            │
-╚─────────────────────────────────────────────────────────────────*/
-#endif
-#include "libc/calls/calls.h"
-#include "libc/macros.internal.h"
-#include "libc/stdio/stdio.h"
-#include "libc/sysv/consts/sig.h"
-#include "libc/testlib/ezbench.h"
-
-/**
- * @fileoverview Fast Division Using Multiplication Tutorial
- *
- * Expected program output:
- *
- *     23 / 3 = 7
- *     0x5555555555555556 1 1
- *     division   l: 16𝑐  5𝑛𝑠
- *     fast div   l:  5𝑐  2𝑛𝑠
- *     precomps   l: 70𝑐 23𝑛𝑠
- */
-
-struct Divisor {
-  uint64_t m;
-  uint8_t s;
-  uint8_t t;
-};
-
-struct Divisor GetDivisor(uint64_t d) {
-  int b;
-  uint128_t x;
-  if (!d) raise(SIGFPE);
-  b = __builtin_clzll(d) ^ 63;
-  x = -d & (((1ull << b) - 1) | (1ull << b));
-  return (struct Divisor){(x << 64) / d + 1, MIN(1, b + 1), MAX(0, b)};
-}
-
-uint64_t Divide(uint64_t x, struct Divisor d) {
-  uint128_t t;
-  uint64_t l, h;
-  t = d.m;
-  t *= x;
-  l = t;
-  h = t >> 64;
-  l = (x - h) >> d.s;
-  return (h + l) >> d.t;
-}
-
-int main(int argc, char *argv[]) {
-  printf("23 / 3 = %ld\n", Divide(23, GetDivisor(3)));
-  volatile struct Divisor v = GetDivisor(3);
-  volatile uint64_t x = 23, y = 3, z;
-  EZBENCH2("division", donothing, z = x / y);
-  EZBENCH2("fast div", donothing, z = Divide(x, v));
-  EZBENCH2("precomp ", donothing, v = GetDivisor(y));
-  return 0;
-}
@@ -0,0 +1,21 @@
+#if 0
+/*─────────────────────────────────────────────────────────────────╗
+│ To the extent possible under law, Justine Tunney has waived      │
+│ all copyright and related or neighboring rights to this file,    │
+│ as it is written in the following disclaimers:                   │
+│   • http://unlicense.org/                                        │
+│   • http://creativecommons.org/publicdomain/zero/1.0/            │
+╚─────────────────────────────────────────────────────────────────*/
+#endif
+#include "libc/calls/calls.h"
+#include "libc/stdio/stdio.h"
+
+int main(int argc, char *argv[]) {
+  char buf[256];
+  if (!getdomainname(buf, sizeof(buf))) {
+    printf("%s\n", buf);
+    return 0;
+  } else {
+    return 1;
+  }
+}
@@ -27,13 +27,13 @@ dontinline void ShowIt(const char *path) {
         "optimal transfer block size");
  sizefmt(ibuf, sf.f_frsize, 1024);
  printf("f_frsize  = %,zu (%sb %s)\n", sf.f_frsize, ibuf, "fragment size");
-  sizefmt(ibuf, sf.f_blocks * sf.f_bsize, 1024);
+  sizefmt(ibuf, sf.f_blocks * sf.f_frsize, 1024);
  printf("f_blocks  = %,zu (%sb %s)\n", sf.f_blocks, ibuf,
         "total data blocks in filesystem");
-  sizefmt(ibuf, sf.f_bfree * sf.f_bsize, 1024);
+  sizefmt(ibuf, sf.f_bfree * sf.f_frsize, 1024);
  printf("f_bfree   = %,zu (%sb %s)\n", sf.f_bfree, ibuf,
         "free blocks in filesystem");
-  sizefmt(ibuf, sf.f_bavail * sf.f_bsize, 1024);
+  sizefmt(ibuf, sf.f_bavail * sf.f_frsize, 1024);
  printf("f_bavail  = %,zu (%sb %s)\n", sf.f_bavail, ibuf,
         "free blocks available to use");
  printf("f_files   = %,zu (%s)\n", sf.f_files,
@@ -46,31 +46,31 @@ int main(int argc, char *argv[]) {
         1. / 65536 * si.loads[1],    //
         1. / 65536 * si.loads[2]);   //

-  sizefmt(ibuf, si.totalram, 1024);
-  printf("%-16s %s\n", "totalram", ibuf);
+  sizefmt(ibuf, si.totalram * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "totalram", si.totalram, ibuf);

-  sizefmt(ibuf, si.freeram, 1024);
-  printf("%-16s %s\n", "freeram", ibuf);
+  sizefmt(ibuf, si.freeram * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "freeram", si.freeram, ibuf);

-  sizefmt(ibuf, si.sharedram, 1024);
-  printf("%-16s %s\n", "sharedram", ibuf);
+  sizefmt(ibuf, si.sharedram * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "sharedram", si.sharedram, ibuf);

-  sizefmt(ibuf, si.bufferram, 1024);
-  printf("%-16s %s\n", "bufferram", ibuf);
+  sizefmt(ibuf, si.bufferram * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "bufferram", si.bufferram, ibuf);

-  sizefmt(ibuf, si.totalswap, 1024);
-  printf("%-16s %s\n", "totalswap", ibuf);
+  sizefmt(ibuf, si.totalswap * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "totalswap", si.totalswap, ibuf);

-  sizefmt(ibuf, si.freeswap, 1024);
-  printf("%-16s %s\n", "freeswap", ibuf);
+  sizefmt(ibuf, si.freeswap * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "freeswap", si.freeswap, ibuf);

  printf("%-16s %lu\n", "processes", si.procs);

-  sizefmt(ibuf, si.totalhigh, 1024);
-  printf("%-16s %s\n", "totalhigh", ibuf);
+  sizefmt(ibuf, si.totalhigh * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "totalhigh", si.totalhigh, ibuf);

-  sizefmt(ibuf, si.freehigh, 1024);
-  printf("%-16s %s\n", "freehigh", ibuf);
+  sizefmt(ibuf, si.freehigh * si.mem_unit, 1024);
+  printf("%-16s %ld (%s)\n", "freehigh", si.freehigh, ibuf);

  sizefmt(ibuf, si.mem_unit, 1024);
  printf("%-16s %s\n", "mem_unit", ibuf);
@@ -1,152 +0,0 @@
-#if 0
-/*─────────────────────────────────────────────────────────────────╗
-│ To the extent possible under law, Justine Tunney has waived      │
-│ all copyright and related or neighboring rights to this file,    │
-│ as it is written in the following disclaimers:                   │
-│   • http://unlicense.org/                                        │
-│   • http://creativecommons.org/publicdomain/zero/1.0/            │
-╚─────────────────────────────────────────────────────────────────*/
-#endif
-#include "dsp/core/core.h"
-#include "libc/calls/calls.h"
-#include "libc/calls/struct/itimerval.h"
-#include "libc/calls/struct/sigaction.h"
-#include "libc/fmt/nf32.h"
-#include "libc/intrin/bits.h"
-#include "libc/log/check.h"
-#include "libc/macros.internal.h"
-#include "libc/mem/mem.h"
-#include "libc/runtime/runtime.h"
-#include "libc/stdio/append.h"
-#include "libc/stdio/stdio.h"
-#include "libc/str/str.h"
-#include "libc/sysv/consts/itimer.h"
-#include "libc/sysv/consts/sig.h"
-#include "libc/time/time.h"
-
-/**
- * @fileoverview experimental way to play audio in terminals
- *
- * This is an stdio application that prints audio samples. The terminal
- * on the other end, needs to be able to understand the Nf sequences we
- * use here, which should be invisible to the terminal sort of like out
- * of band signalling.
- *
- * To play audio with a supporting terminal:
- *
- *     make -j8 o//examples/ttyaudio.com
- *     wget https://justine.lol/numbers.s16
- *     o//examples/ttyaudio.com numbers.s16
- *
- * To reveal the inband ansi audio transmission:
- *
- *     o//examples/ttyaudio.com numbers.s16 2>/dev/null |
- *       o//tool/viz/bing.com |
- *       o//tool/viz/fold.com
- *
- */
-
-#define CSI  "s"
-#define SGR1 "?80"
-#define SGR2 "?81"
-
-struct Ring {
-  int i;     // read index
-  int j;     // write index
-  int n;     // total samples
-  short* p;  // samples
-};
-
-struct Speaker {
-  int rate;         // in hertz, e.g. 8000
-  int codec;        // 0 = s16, 2 = µ-Law
-  int channels;     // 1 = mono, 2 = stereo
-  struct Ring buf;  // audio playback buffer
-};
-
-const int maxar = 31;
-const int ptime = 20;
-
-struct Speaker s;
-
-void OnAlrm(int sig) {
-}
-
-void LoadAudioFile(struct Speaker* s, const char* path) {
-  int rc;
-  FILE* f;
-  short buf[1024];
-  if (!(f = fopen(path, "rb"))) {
-    fprintf(stderr, "failed to open file\n");
-    exit(1);
-  }
-  for (;;) {
-    rc = fread(buf, sizeof(short), sizeof(buf) / sizeof(short), f);
-    if (rc) {
-      s->buf.p = (short*)realloc(s->buf.p, (s->buf.n + rc) * sizeof(short));
-      memcpy(s->buf.p + s->buf.n, buf, rc * sizeof(short));
-      s->buf.n += rc;
-    } else if (ferror(f)) {
-      fprintf(stderr, "read error: %s\n", strerror(ferror(f)));
-      exit(2);
-    } else {
-      break;
-    }
-  }
-  fclose(f);
-}
-
-int main(int argc, char* argv[]) {
-  if (argc < 2) return 1;
-  if (!isatty(0)) exit(1);
-
-  s.rate = 8000;
-  s.channels = 1;
-  s.codec = 0;
-  LoadAudioFile(&s, argv[1]);
-
-  char nf[21];
-  char* obuf = 0;
-  appendw(&obuf, READ16LE("\e%"));
-  appendd(&obuf, nf, EncodeNf32(nf, s.rate) - nf);
-  appendw(&obuf, '/');
-  appendd(&obuf, nf, EncodeNf32(nf, s.channels) - nf);
-  appendw(&obuf, '/');
-  appendd(&obuf, nf, EncodeNf32(nf, s.codec) - nf);
-  appendw(&obuf, '0');
-  write(1, obuf, appendz(obuf).i);
-  free(obuf);
-
-  struct sigaction sa = {.sa_handler = OnAlrm};
-  struct itimerval it = {{0, ptime * 1000}, {0, ptime * 1000}};
-  CHECK_NE(-1, sigaction(SIGALRM, &sa, 0));
-  CHECK_NE(-1, setitimer(ITIMER_REAL, &it, 0));
-
-  for (;;) {
-    char* p;
-    int count;
-    char nf[22];
-    int i, j, x;
-    char* obuf = 0;
-    int samps = s.rate / (1000 / ptime);
-    appendw(&obuf, READ16LE("\e "));
-    for (i = 0; i < samps; ++i) {
-      if (s.codec == 1) {
-        x = mulaw(s.buf.p[s.buf.i++]);
-      } else {
-        x = s.buf.p[s.buf.i++] & 0xffff;
-      }
-      *(p = EncodeNf32(nf, x)) = '/';
-      appendd(&obuf, nf, p + 1 - nf);
-      if (s.buf.i == s.buf.n) break;
-    }
-    appendw(&obuf, '0');
-    write(1, obuf, appendz(obuf).i);
-    free(obuf);
-    fprintf(stderr, "\r\e[K%d / %d", s.buf.i, s.buf.n);
-    fflush(stderr);
-    pause();
-  }
-
-  return 1;
-}
@@ -0,0 +1,25 @@
+#if 0
+/*─────────────────────────────────────────────────────────────────╗
+│ To the extent possible under law, Justine Tunney has waived      │
+│ all copyright and related or neighboring rights to this file,    │
+│ as it is written in the following disclaimers:                   │
+│   • http://unlicense.org/                                        │
+│   • http://creativecommons.org/publicdomain/zero/1.0/            │
+╚─────────────────────────────────────────────────────────────────*/
+#endif
+#include "third_party/vqsort/vqsort.h"
+#include "libc/macros.internal.h"
+#include "libc/stdio/stdio.h"
+#include "third_party/vqsort/vqsort.h"
+
+// how to sort one gigabyte of 64-bit integers per second
+
+int main(int argc, char *argv[]) {
+  int64_t A[] = {9, 3, -3, 5, 23, 7};
+  vqsort_int64(A, ARRAYLEN(A));
+  for (int i = 0; i < ARRAYLEN(A); ++i) {
+    if (i) printf(" ");
+    printf("%ld", A[i]);
+  }
+  printf("\n");
+}
@@ -1,30 +0,0 @@
-/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
-│vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/macros.internal.h"
-
-	.initbss 301,_init___clock_gettime
-__clock_gettime:
-	.quad	0
-	.endobj	__clock_gettime,globl,hidden
-	.previous
-
-	.init.start 301,_init___clock_gettime
-	ezlea	__clock_gettime_init,ax
-	stosq
-	.init.end 301,_init___clock_gettime
@@ -0,0 +1,21 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2023 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/clock_gettime.internal.h"
+
+clock_gettime_f *__clock_gettime = __clock_gettime_init;
@@ -1,30 +0,0 @@
-/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8     -*-│
-│vi: set et ft=asm ts=8 tw=8 fenc=utf-8                                     :vi│
-╞══════════════════════════════════════════════════════════════════════════════╡
-│ Copyright 2022 Justine Alexandra Roberts Tunney                              │
-│                                                                              │
-│ Permission to use, copy, modify, and/or distribute this software for         │
-│ any purpose with or without fee is hereby granted, provided that the         │
-│ above copyright notice and this permission notice appear in all copies.      │
-│                                                                              │
-│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
-│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
-│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
-│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
-│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
-│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
-│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
-│ PERFORMANCE OF THIS SOFTWARE.                                                │
-╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/macros.internal.h"
-
-	.initbss 301,_init___gettimeofday
-__gettimeofday:
-	.quad	0
-	.endobj	__gettimeofday,globl,hidden
-	.previous
-
-	.init.start 301,_init___gettimeofday
-	ezlea	__gettimeofday_init,ax
-	stosq
-	.init.end 301,_init___gettimeofday
@@ -34,6 +34,8 @@
 #include "libc/sysv/errfuns.h"
 #include "libc/thread/tls.h"

+#ifdef __x86_64__
+
 /**
 * Allocates piece of memory for storing pending signal.
 * @assume lock is held
@@ -304,3 +306,5 @@ textwindows void __sig_check_ignore(const int sig, const unsigned rva) {
    __sig_unlock();
  }
 }
+
+#endif /* __x86_64__ */
@@ -23,6 +23,8 @@
 #include "libc/sysv/errfuns.h"
 #include "libc/thread/tls.h"

+#ifdef __x86_64__
+
 #define GetSigBit(x) (1ull << (((x)-1) & 63))

 textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
@@ -58,3 +60,5 @@ textwindows int __sig_mask(int how, const sigset_t *neu, sigset_t *old) {
    return einval();
  }
 }
+
+#endif /* __x86_64__ */
@@ -21,6 +21,8 @@
 #include "libc/calls/state.internal.h"
 #include "libc/calls/struct/sigset.h"

+#ifdef __x86_64__
+
 /**
 * Determines the pending signals on New Technology.
 *
@@ -41,3 +43,5 @@ textwindows void __sig_pending(sigset_t *pending) {
    __sig_unlock();
  }
 }
+
+#endif /* __x86_64__ */
@@ -2,17 +2,22 @@
 #define COSMOPOLITAN_LIBC_CALLS_ASAN_INTERNAL_H_
 #include "libc/calls/struct/timespec.h"
 #include "libc/calls/struct/timeval.h"
+#include "libc/intrin/asan.internal.h"
 #include "libc/intrin/asmflag.h"
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_

 forceinline bool __asan_is_valid_timespec(const struct timespec *ts) {
+#ifdef __x86_64__
  bool zf;
  asm(ZFLAG_ASM("cmpw\t$0,0x7fff8000(%1)")
      : ZFLAG_CONSTRAINT(zf)
      : "r"((intptr_t)ts >> 3)
      : "memory");
  return zf;
+#else
+  return __asan_is_valid(ts, sizeof(*ts));
+#endif
 }

 forceinline bool __asan_is_valid_timeval(const struct timeval *tv) {
@@ -5,6 +5,26 @@
 #define _POSIX2_VERSION _POSIX_VERSION
 #define _XOPEN_VERSION  700

+#define _POSIX_MAPPED_FILES               _POSIX_VERSION
+#define _POSIX_FSYNC                      _POSIX_VERSION
+#define _POSIX_IPV6                       _POSIX_VERSION
+#define _POSIX_THREADS                    _POSIX_VERSION
+#define _POSIX_THREAD_PROCESS_SHARED      _POSIX_VERSION
+#define _POSIX_THREAD_SAFE_FUNCTIONS      _POSIX_VERSION
+#define _POSIX_THREAD_ATTR_STACKADDR      _POSIX_VERSION
+#define _POSIX_THREAD_ATTR_STACKSIZE      _POSIX_VERSION
+#define _POSIX_THREAD_PRIORITY_SCHEDULING _POSIX_VERSION
+#define _POSIX_THREAD_CPUTIME             _POSIX_VERSION
+#define _POSIX_TIMEOUTS                   _POSIX_VERSION
+#define _POSIX_MONOTONIC_CLOCK            _POSIX_VERSION
+#define _POSIX_CPUTIME                    _POSIX_VERSION
+#define _POSIX_BARRIERS                   _POSIX_VERSION
+#define _POSIX_SPIN_LOCKS                 _POSIX_VERSION
+#define _POSIX_READER_WRITER_LOCKS        _POSIX_VERSION
+#define _POSIX_SEMAPHORES                 _POSIX_VERSION
+#define _POSIX_SHARED_MEMORY_OBJECTS      _POSIX_VERSION
+#define _POSIX_MEMLOCK_RANGE              _POSIX_VERSION
+
 #define EOF      -1         /* end of file */
 #define WEOF     -1u        /* end of file (multibyte) */
 #define _IOFBF   0          /* fully buffered */
@@ -51,7 +51,8 @@ LIBC_CALLS_A_DIRECTDEPS =				\
 	LIBC_STR					\
 	LIBC_STUBS					\
 	LIBC_SYSV_CALLS					\
-	LIBC_SYSV
+	LIBC_SYSV					\
+	THIRD_PARTY_COMPILER_RT

 LIBC_CALLS_A_DEPS :=					\
 	$(call uniq,$(foreach x,$(LIBC_CALLS_A_DIRECTDEPS),$($(x))))
@@ -16,11 +16,11 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/sysv/consts/clock.h"
 #include "libc/calls/struct/rusage.h"
 #include "libc/calls/struct/timespec.h"
 #include "libc/calls/struct/timeval.h"
 #include "libc/errno.h"
-#include "libc/sysv/consts/clock.h"
 #include "libc/sysv/consts/rusage.h"
 #include "libc/time/time.h"

@@ -95,13 +95,19 @@ int clock_gettime(int clock, struct timespec *ts) {
  return rc;
 }

+#ifdef __aarch64__
+#define CGT_VDSO __vdsosym("LINUX_2.6.39", "__kernel_clock_gettime")
+#else
+#define CGT_VDSO __vdsosym("LINUX_2.6", "__vdso_clock_gettime")
+#endif
+
 /**
 * Returns pointer to fastest clock_gettime().
 */
 clock_gettime_f *__clock_gettime_get(bool *opt_out_isfast) {
  bool isfast;
  clock_gettime_f *res;
-  if (IsLinux() && (res = __vdsosym("LINUX_2.6", "__vdso_clock_gettime"))) {
+  if (IsLinux() && (res = CGT_VDSO)) {
    isfast = true;
  } else if (IsXnu()) {
    isfast = false;
@@ -212,7 +212,7 @@ static bool ShouldUseSpinNanosleep(int clock, int flags,
 *     while (clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &abs, 0));
 *
 * will accurately spin on `EINTR` errors. That way you're not impeding
- * signal delivery and you're not losing precision on your wait timeout.
+ * signal delivery and you're not loosing precision on the wait timeout.
 * This function has first-class support on Linux, FreeBSD, and NetBSD;
 * on OpenBSD it's good; on XNU it's bad; and on Windows it's ugly.
 *
@@ -16,16 +16,18 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/bits.h"
-#include "libc/intrin/safemacros.internal.h"
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
+#include "libc/calls/struct/stat.h"
 #include "libc/dce.h"
 #include "libc/errno.h"
+#include "libc/intrin/bits.h"
+#include "libc/intrin/safemacros.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/log/libfatal.internal.h"
 #include "libc/runtime/runtime.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/ok.h"
+#include "libc/sysv/consts/s.h"
 #include "libc/sysv/errfuns.h"

 static bool IsExePath(const char *s, size_t n) {
@@ -48,6 +50,9 @@ static bool AccessCommand(const char *name, char *path, size_t pathsz,
                          size_t pathlen) {
  size_t suffixlen;
  suffixlen = strlen(suffix);
+  if (IsWindows() && suffixlen == 0 && !IsExePath(name, namelen) &&
+      !IsComPath(name, namelen))
+    return false;
  if (pathlen + 1 + namelen + suffixlen + 1 > pathsz) return false;
  if (pathlen && (path[pathlen - 1] != '/' && path[pathlen - 1] != '\\')) {
    path[pathlen] = !IsWindows()                  ? '/'
@@ -57,7 +62,16 @@ static bool AccessCommand(const char *name, char *path, size_t pathsz,
  }
  memcpy(path + pathlen, name, namelen);
  memcpy(path + pathlen + namelen, suffix, suffixlen + 1);
-  if (!access(path, X_OK)) return true;
+  if (!access(path, X_OK)) {
+    struct stat st;
+    if (!stat(path, &st)) {
+      if (S_ISREG(st.st_mode)) {
+        return true;
+      } else {
+        errno = EACCES;
+      }
+    }
+  }
  if (errno == EACCES || *err != EACCES) *err = errno;
  return false;
 }
@@ -16,8 +16,8 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/calls/calls.h"
 #include "libc/calls/copyfile.h"
+#include "libc/calls/calls.h"
 #include "libc/calls/struct/stat.h"
 #include "libc/calls/syscall_support-nt.internal.h"
 #include "libc/dce.h"
@@ -17,7 +17,6 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/lockxadd.h"
 #include "libc/nt/process.h"

 static textwindows char16_t *UintToChar16Array(char16_t p[21], uint64_t x) {
@@ -44,7 +43,7 @@ textwindows char16_t *CreatePipeName(char16_t *a) {
  while (*q) *p++ = *q++;
  p = UintToChar16Array(p, GetCurrentProcessId());
  *p++ = '-';
-  p = UintToChar16Array(p, _lockxadd(&x, 1));
+  p = UintToChar16Array(p, (x += 1));
  *p = 0;
  return a;
 }
@@ -19,6 +19,7 @@
 #include "libc/calls/blockcancel.internal.h"
 #include "libc/calls/blocksigs.internal.h"
 #include "libc/calls/calls.h"
+#include "libc/calls/execve-sysv.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/errno.h"
@@ -37,6 +38,11 @@ static bool CanExecute(const char *path) {
  return !sys_faccessat(AT_FDCWD, path, X_OK, 0);
 }

+bool IsAPEMagic(char buf[8]) {
+  return READ64LE(buf) == READ64LE("MZqFpD='") ||
+         READ64LE(buf) == READ64LE("JTqFpD='");
+}
+
 static bool IsApeBinary(const char *path) {
  int fd;
  char buf[8];
@@ -44,11 +50,7 @@ static bool IsApeBinary(const char *path) {
  // TODO(jart): Should we block signals too?
  BLOCK_CANCELLATIONS;
  if ((fd = sys_open(path, O_RDONLY, 0)) != -1) {
-    if (sys_read(fd, buf, 8) == 8 &&  //
-        (READ64LE(buf) == READ64LE("MZqFpD='") ||
-         READ64LE(buf) == READ64LE("JTqFpD='"))) {
-      res = true;
-    }
+    res = sys_read(fd, buf, 8) == 8 && IsAPEMagic(buf);
    sys_close(fd);
  }
  ALLOW_CANCELLATIONS;
@@ -0,0 +1,10 @@
+#ifndef COSMOPOLITAN_LIBC_CALLS_EXECVE_SYSV_H_
+#define COSMOPOLITAN_LIBC_CALLS_EXECVE_SYSV_H_
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+bool IsAPEMagic(char[8]) _Hide;
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_CALLS_EXECVE_SYSV_H_ */
@@ -32,6 +32,7 @@
 #include "libc/log/libfatal.internal.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/errfuns.h"
+#include "libc/zipos/zipos.internal.h"

 /**
 * Replaces current process with program.
@@ -51,6 +52,7 @@
 * @vforksafe
 */
 int execve(const char *prog, char *const argv[], char *const envp[]) {
+  struct ZiposUri uri;
  int rc;
  size_t i;
  if (!prog || !argv || !envp ||
@@ -61,16 +63,26 @@ int execve(const char *prog, char *const argv[], char *const envp[]) {
  } else {
    STRACE("execve(%#s, %s, %s) → ...", prog, DescribeStringList(argv),
           DescribeStringList(envp));
-    if (!IsWindows()) {
-      rc = 0;
-      if (IsLinux() && __execpromises && _weaken(sys_pledge_linux)) {
-        rc = _weaken(sys_pledge_linux)(__execpromises, __pledge_mode);
-      }
-      if (!rc) {
+    rc = 0;
+    if (IsLinux() && __execpromises && _weaken(sys_pledge_linux)) {
+      rc = _weaken(sys_pledge_linux)(__execpromises, __pledge_mode);
+    }
+    if (!rc) {
+      if (_weaken(__zipos_parseuri) &&
+          (_weaken(__zipos_parseuri)(prog, &uri) != -1)) {
+        rc = _weaken(__zipos_open)(&uri, O_RDONLY | O_CLOEXEC, 0);
+        if (rc != -1) {
+          const int zipFD = rc;
+          strace_enabled(-1);
+          rc = fexecve(zipFD, argv, envp);
+          close(zipFD);
+          strace_enabled(+1);
+        }
+      } else if (!IsWindows()) {
        rc = sys_execve(prog, argv, envp);
+      } else {
+        rc = sys_execve_nt(prog, argv, envp);
      }
-    } else {
-      rc = sys_execve_nt(prog, argv, envp);
    }
  }
  STRACE("execve(%#s) failed %d% m", prog, rc);
@@ -17,8 +17,8 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/at.h"

 /**
@@ -16,21 +16,167 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/assert.h"
+#include "libc/calls/blockcancel.internal.h"
+#include "libc/calls/blocksigs.internal.h"
 #include "libc/calls/calls.h"
+#include "libc/calls/cp.internal.h"
+#include "libc/calls/execve-sysv.internal.h"
+#include "libc/calls/internal.h"
+#include "libc/calls/struct/stat.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/errno.h"
 #include "libc/fmt/itoa.h"
 #include "libc/intrin/asan.internal.h"
 #include "libc/intrin/describeflags.internal.h"
+#include "libc/intrin/safemacros.internal.h"
 #include "libc/intrin/strace.internal.h"
+#include "libc/intrin/weaken.h"
 #include "libc/str/str.h"
+#include "libc/sysv/consts/f.h"
+#include "libc/sysv/consts/fd.h"
+#include "libc/sysv/consts/map.h"
+#include "libc/sysv/consts/mfd.h"
+#include "libc/sysv/consts/o.h"
+#include "libc/sysv/consts/prot.h"
+#include "libc/sysv/consts/shm.h"
 #include "libc/sysv/errfuns.h"

+static bool IsAPEFd(const int fd) {
+  char buf[8];
+  bool res;
+  return (sys_pread(fd, buf, 8, 0, 0) == 8) && IsAPEMagic(buf);
+}
+
+static int fexecve_impl(const int fd, char *const argv[], char *const envp[]) {
+  int rc;
+  if (IsLinux()) {
+    char path[14 + 12];
+    FormatInt32(stpcpy(path, "/proc/self/fd/"), fd);
+    rc = __sys_execve(path, argv, envp);
+  } else if (IsFreebsd()) {
+    rc = sys_fexecve(fd, argv, envp);
+  } else {
+    rc = enosys();
+  }
+  return rc;
+}
+
+typedef enum {
+  PTF_NUM = 1 << 0,
+  PTF_NUM2 = 1 << 1,
+  PTF_NUM3 = 1 << 2,
+  PTF_ANY = 1 << 3
+} PTF_PARSE;
+
+static bool ape_to_elf(void *ape, const size_t apesize) {
+  static const char printftok[] = "printf '";
+  static const size_t printftoklen = sizeof(printftok) - 1;
+  const char *tok = memmem(ape, apesize, printftok, printftoklen);
+  if (tok) {
+    tok += printftoklen;
+    uint8_t *dest = ape;
+    PTF_PARSE state = PTF_ANY;
+    uint8_t value = 0;
+    for (; tok < (const char *)(dest + apesize); tok++) {
+      if ((state & (PTF_NUM | PTF_NUM2 | PTF_NUM3)) &&
+          (*tok >= '0' && *tok <= '7')) {
+        value = (value << 3) | (*tok - '0');
+        state <<= 1;
+        if (state & PTF_ANY) {
+          *dest++ = value;
+        }
+      } else if (state & PTF_NUM) {
+        break;
+      } else {
+        if (state & (PTF_NUM2 | PTF_NUM3)) {
+          *dest++ = value;
+        }
+        if (*tok == '\\') {
+          state = PTF_NUM;
+          value = 0;
+        } else if (*tok == '\'') {
+          return true;
+        } else {
+          *dest++ = *tok;
+          state = PTF_ANY;
+        }
+      }
+    }
+  }
+  errno = ENOEXEC;
+  return false;
+}
+
+/**
+ * Creates a memfd and copies fd to it.
+ *
+ * This does an inplace conversion of APE to ELF when detected!!!!
+ */
+static int fd_to_mem_fd(const int infd, char *path) {
+  if (!IsLinux() && !IsFreebsd() || !_weaken(mmap) || !_weaken(munmap)) {
+    return enosys();
+  }
+
+  struct stat st;
+  if (fstat(infd, &st) == -1) {
+    return -1;
+  }
+  int fd;
+  if (IsLinux()) {
+    fd = sys_memfd_create(__func__, MFD_CLOEXEC);
+  } else if (IsFreebsd()) {
+    fd = sys_shm_open(SHM_ANON, O_CREAT | O_RDWR, 0);
+  } else {
+    return enosys();
+  }
+  if (fd == -1) {
+    return -1;
+  }
+  void *space;
+  if ((sys_ftruncate(fd, st.st_size, st.st_size) != -1) &&
+      ((space = _weaken(mmap)(0, st.st_size, PROT_READ | PROT_WRITE, MAP_SHARED,
+                              fd, 0)) != MAP_FAILED)) {
+    ssize_t readRc;
+    readRc = pread(infd, space, st.st_size, 0);
+    bool success = readRc != -1;
+    if (success && (st.st_size > 8) && IsAPEMagic(space)) {
+      int flags = fcntl(fd, F_GETFD);
+      if (success = (flags != -1) &&
+                    (fcntl(fd, F_SETFD, flags & (~FD_CLOEXEC)) != -1) &&
+                    ape_to_elf(space, st.st_size)) {
+        const int newfd = fcntl(fd, F_DUPFD, 9001);
+        if (newfd != -1) {
+          close(fd);
+          fd = newfd;
+        }
+      }
+    }
+    const int e = errno;
+    if ((_weaken(munmap)(space, st.st_size) != -1) && success) {
+      if (path) {
+        FormatInt32(stpcpy(path, "COSMOPOLITAN_INIT_ZIPOS="), fd);
+      }
+      _unassert(readRc == st.st_size);
+      return fd;
+    } else if (!success) {
+      errno = e;
+    }
+  }
+  const int e = errno;
+  close(fd);
+  errno = e;
+  return -1;
+}
+
 /**
 * Executes binary executable at file descriptor.
 *
- * This is only supported on Linux and FreeBSD. APE binaries currently
- * aren't supported.
+ * This is only supported on Linux and FreeBSD. APE binaries are
+ * supported. Zipos is supported. Zipos fds or FD_CLOEXEC APE fds or
+ * fds that fail fexecve with ENOEXEC are copied to a new memfd (with
+ * in-memory APE to ELF conversion) and fexecve is (re)attempted.
 *
 * @param fd is opened executable and current file position is ignored
 * @return doesn't return on success, otherwise -1 w/ errno
@@ -38,8 +184,7 @@
 * @raise ENOSYS on Windows, XNU, OpenBSD, NetBSD, and Metal
 */
 int fexecve(int fd, char *const argv[], char *const envp[]) {
-  int rc;
-  size_t i;
+  int rc = 0;
  if (!argv || !envp ||
      (IsAsan() &&
       (!__asan_is_valid_strlist(argv) || !__asan_is_valid_strlist(envp)))) {
@@ -47,15 +192,67 @@ int fexecve(int fd, char *const argv[], char *const envp[]) {
  } else {
    STRACE("fexecve(%d, %s, %s) → ...", fd, DescribeStringList(argv),
           DescribeStringList(envp));
-    if (IsLinux()) {
-      char path[14 + 12];
-      FormatInt32(stpcpy(path, "/proc/self/fd/"), fd);
-      rc = __sys_execve(path, argv, envp);
-    } else if (IsFreebsd()) {
-      rc = sys_fexecve(fd, argv, envp);
-    } else {
-      rc = enosys();
+    int savedErr = 0;
+    do {
+      if (!IsLinux() && !IsFreebsd()) {
+        rc = enosys();
+        break;
+      }
+      if (!__isfdkind(fd, kFdZip)) {
+        bool memfdReq;
+        BEGIN_CANCELLATION_POINT;
+        BLOCK_SIGNALS;
+        strace_enabled(-1);
+        memfdReq = ((rc = fcntl(fd, F_GETFD)) != -1) && (rc & FD_CLOEXEC) &&
+                   IsAPEFd(fd);
+        strace_enabled(+1);
+        ALLOW_SIGNALS;
+        END_CANCELLATION_POINT;
+        if (rc == -1) {
+          break;
+        } else if (!memfdReq) {
+          fexecve_impl(fd, argv, envp);
+          if (errno != ENOEXEC) {
+            break;
+          }
+          savedErr = ENOEXEC;
+        }
+      }
+      int newfd;
+      char *path = alloca(PATH_MAX);
+      BEGIN_CANCELLATION_POINT;
+      BLOCK_SIGNALS;
+      strace_enabled(-1);
+      newfd = fd_to_mem_fd(fd, path);
+      strace_enabled(+1);
+      ALLOW_SIGNALS;
+      END_CANCELLATION_POINT;
+      if (newfd == -1) {
+        break;
+      }
+      size_t numenvs;
+      for (numenvs = 0; envp[numenvs];) ++numenvs;
+      const size_t desenvs = min(500, max(numenvs + 1, 2));
+      static _Thread_local char *envs[500];
+      memcpy(envs, envp, numenvs * sizeof(char *));
+      envs[numenvs] = path;
+      envs[numenvs + 1] = NULL;
+      fexecve_impl(newfd, argv, envs);
+      if (!savedErr) {
+        savedErr = errno;
+      }
+      BEGIN_CANCELLATION_POINT;
+      BLOCK_SIGNALS;
+      strace_enabled(-1);
+      close(newfd);
+      strace_enabled(+1);
+      ALLOW_SIGNALS;
+      END_CANCELLATION_POINT;
+    } while (0);
+    if (savedErr) {
+      errno = savedErr;
    }
+    rc = -1;
  }
  STRACE("fexecve(%d) failed %d% m", fd, rc);
  return rc;
@@ -30,11 +30,7 @@
 int32_t sys_fstat(int32_t fd, struct stat *st) {
  void *p;
  union metastat ms;
-  if (IsLinux()) {
-    _Static_assert(sizeof(*st) == sizeof(ms.linux), "assumption broken");
-    if (IsAsan() && !__asan_is_valid(st, sizeof(*st))) return efault();
-    p = st;
-  } else if (st) {
+  if (st) {
    p = &ms;
  } else {
    p = 0;
@@ -32,11 +32,7 @@ int32_t sys_fstatat(int32_t dirfd, const char *path, struct stat *st,
  void *p;
  union metastat ms;
  if (IsAsan() && !__asan_is_valid_str(path)) return efault();
-  if (IsLinux()) {
-    _Static_assert(sizeof(*st) == sizeof(ms.linux), "assumption broken");
-    if (IsAsan() && (st && !__asan_is_valid(st, sizeof(*st)))) return efault();
-    p = st;
-  } else if (st) {
+  if (st) {
    p = &ms;
  } else {
    p = 0;
@@ -47,7 +47,7 @@ int fsync(int fd) {
      rc = sys_fdatasync_nt(fd);
    }
    END_CANCELLATION_POINT;
-    STRACE("fysnc(%d) → %d% m", fd, rc);
+    STRACE("fsync(%d) → %d% m", fd, rc);
  } else {
    rc = fstat(fd, &st);
    STRACE("fsync_fake(%d) → %d% m", fd, rc);
@@ -1,21 +0,0 @@
-#ifndef COSMOPOLITAN_LIBC_CALLS_GETCONSOLECTRLEVENT_H_
-#define COSMOPOLITAN_LIBC_CALLS_GETCONSOLECTRLEVENT_H_
-#include "libc/nt/enum/ctrlevent.h"
-#include "libc/sysv/consts/sig.h"
-#if !(__ASSEMBLER__ + __LINKER__ + 0)
-COSMOPOLITAN_C_START_
-
-static inline int GetConsoleCtrlEvent(int sig) {
-  switch (sig) {
-    case SIGINT:
-      return kNtCtrlCEvent;
-    case SIGQUIT:
-      return kNtCtrlBreakEvent;
-    default:
-      return -1;
-  }
-}
-
-COSMOPOLITAN_C_END_
-#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
-#endif /* COSMOPOLITAN_LIBC_CALLS_GETCONSOLECTRLEVENT_H_ */
@@ -17,10 +17,10 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall_support-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/kprintf.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/macros.internal.h"
 #include "libc/nt/enum/computernameformat.h"
 #include "libc/str/str.h"
@@ -17,10 +17,10 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall_support-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/kprintf.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/nt/enum/computernameformat.h"
 #include "libc/sysv/errfuns.h"

@@ -17,11 +17,11 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/itimerval.h"
 #include "libc/calls/struct/itimerval.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/asan.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/errfuns.h"

 /**
@@ -17,9 +17,9 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Returns process group id.
@@ -18,6 +18,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/syscall-nt.internal.h"
+#include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/errno.h"
 #include "libc/intrin/asmflag.h"
@@ -49,6 +50,7 @@
 */
 privileged int getpriority(int which, unsigned who) {
  int rc;
+#ifdef __x86_64__
  char cf;
  if (IsLinux()) {
    asm volatile("syscall"
@@ -73,6 +75,12 @@ privileged int getpriority(int which, unsigned who) {
  } else {
    rc = sys_getpriority_nt(which, who);
  }
+#else
+  rc = sys_getpriority(which, who);
+  if (rc != -1) {
+    rc = NZERO - rc;
+  }
+#endif
  STRACE("getpriority(%s, %u) → %d% m", DescribeWhichPrio(which), who, rc);
  return rc;
 }
@@ -17,9 +17,9 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Gets real, effective, and "saved" group ids.
@@ -17,9 +17,9 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Gets real, effective, and "saved" user ids.
@@ -17,11 +17,11 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/rlimit.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/asan.internal.h"
 #include "libc/intrin/describeflags.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/rlimit.h"
 #include "libc/sysv/errfuns.h"

@@ -17,11 +17,11 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/rusage.h"
 #include "libc/calls/struct/rusage.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/asan.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/errfuns.h"

 /**
@@ -17,8 +17,8 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Creates session and sets the process group id.
@@ -31,8 +31,8 @@
 #include "libc/time/struct/timezone.h"

 typedef axdx_t gettimeofday_f(struct timeval *, struct timezone *, void *);
-
-extern gettimeofday_f *__gettimeofday;
+static gettimeofday_f __gettimeofday_init;
+static gettimeofday_f *__gettimeofday = __gettimeofday_init;

 /**
 * Returns system wall time in microseconds, e.g.
@@ -97,8 +97,10 @@ gettimeofday_f *__gettimeofday_get(bool *opt_out_isfast) {
  return res;
 }

-_Hide int __gettimeofday_init(struct timeval *tv, struct timezone *tz) {
+static axdx_t __gettimeofday_init(struct timeval *tv,   //
+                                  struct timezone *tz,  //
+                                  void *arg) {
  gettimeofday_f *gettime;
  __gettimeofday = gettime = __gettimeofday_get(0);
-  return gettime(tv, tz, 0).ax;
+  return gettime(tv, tz, 0);
 }
@@ -26,7 +26,6 @@
 #include "libc/calls/syscall_support-nt.internal.h"
 #include "libc/dce.h"
 #include "libc/errno.h"
-#include "libc/intrin/lockcmpxchgp.h"
 #include "libc/intrin/strace.internal.h"
 #include "libc/intrin/weaken.h"
 #include "libc/sysv/errfuns.h"
@@ -18,9 +18,9 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/internal.h"
 #include "libc/calls/ioctl.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/errfuns.h"

@@ -17,10 +17,10 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/internal.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/metatermios.internal.h"
 #include "libc/calls/termios.internal.h"
 #include "libc/intrin/describeflags.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/nt/console.h"
 #include "libc/nt/enum/consolemodeflags.h"
 #include "libc/nt/enum/version.h"
@@ -18,12 +18,12 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/internal.h"
 #include "libc/calls/ioctl.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/winsize.h"
 #include "libc/calls/struct/winsize.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/asan.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/termios.h"
 #include "libc/sysv/errfuns.h"

@@ -18,12 +18,12 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/internal.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/struct/winsize.h"
 #include "libc/calls/syscall-nt.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/calls/syscall_support-sysv.internal.h"
 #include "libc/errno.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/termios.h"
 #include "libc/sysv/errfuns.h"

@@ -22,6 +22,7 @@
 #include "libc/sysv/consts/pr.h"

 privileged bool __is_linux_2_6_23(void) {
+#ifdef __x86_64__
  int rc;
  if (!IsLinux()) return false;
  if (IsGenuineBlink()) return true;
@@ -30,4 +31,7 @@ privileged bool __is_linux_2_6_23(void) {
               : "0"(157), "D"(PR_GET_SECCOMP)
               : "rcx", "r11", "memory");
  return rc != -EINVAL;
+#else
+  return true;
+#endif
 }
@@ -16,11 +16,11 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/intrin/_getauxval.internal.h"
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
+#include "libc/intrin/_getauxval.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/consts/auxv.h"

 /**
@@ -17,7 +17,6 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/calls/getconsolectrlevent.internal.h"
 #include "libc/calls/internal.h"
 #include "libc/dce.h"
 #include "libc/macros.internal.h"
@@ -29,8 +28,20 @@
 #include "libc/nt/process.h"
 #include "libc/nt/runtime.h"
 #include "libc/nt/struct/processentry32.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/errfuns.h"

+static inline int GetConsoleCtrlEvent(int sig) {
+  switch (sig) {
+    case SIGINT:
+      return kNtCtrlCEvent;
+    case SIGQUIT:
+      return kNtCtrlBreakEvent;
+    default:
+      return -1;
+  }
+}
+
 textwindows int sys_kill_nt(int pid, int sig) {
  bool32 ok;
  int64_t h;
@@ -46,6 +57,7 @@ textwindows int sys_kill_nt(int pid, int sig) {

  // If we're targeting current process group then just call raise().
  if (!pid || pid == getpid()) {
+    if (!sig) return 0;  // ability check passes
    return raise(sig);
  }

@@ -72,6 +84,7 @@ textwindows int sys_kill_nt(int pid, int sig) {

  // is this a cosmo pid that was returned by fork?
  if (__isfdkind(pid, kFdProcess)) {
+    if (!sig) return 0;  // ability check passes
    // since windows can't execve we need to kill the grandchildren
    // TODO(jart): should we just kill the whole tree too? there's
    //             no obvious way to tell if it's the execve shell
@@ -96,9 +109,11 @@ textwindows int sys_kill_nt(int pid, int sig) {

  // XXX: Is this a raw new technology pid? Because that's messy.
  if ((h = OpenProcess(kNtProcessTerminate, false, pid))) {
-    ok = TerminateProcess(h, 128 + sig);
-    if (!ok && GetLastError() == kNtErrorAccessDenied) {
-      ok = true;  // cargo culting other codebases here
+    if (sig) {
+      ok = TerminateProcess(h, 128 + sig);
+      if (!ok && GetLastError() == kNtErrorAccessDenied) {
+        ok = true;  // cargo culting other codebases here
+      }
    }
    CloseHandle(h);
    return 0;
@@ -26,6 +26,16 @@
 */
 #define LANDLOCK_ACCESS_FS_REFER 0x2000ul

+/**
+ * Control file truncation.
+ *
+ * @see
+ * https://lore.kernel.org/all/[email protected]/
+ * @see https://docs.kernel.org/userspace-api/landlock.html
+ * @note ABI 3+
+ */
+#define LANDLOCK_ACCESS_FS_TRUNCATE 0x4000ul
+
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_

@@ -17,11 +17,11 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-nt.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/intrin/asan.internal.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/sysv/errfuns.h"

 /**
@@ -17,8 +17,8 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Creates anonymous file.
@@ -41,6 +41,8 @@
 #include "libc/sysv/consts/prot.h"
 #include "libc/sysv/errfuns.h"

+#ifdef __x86_64__
+
 #define MAP_ANONYMOUS_linux 0x00000020
 #define MAP_FIXED_linux     0x00000010
 #define MAP_SHARED_linux    0x00000001
@@ -73,3 +75,5 @@ textstartup noasan void InitializeMetalFile(void) {
    __ape_com_size = size;
  }
 }
+
+#endif /* __x86_64__ */
@@ -17,8 +17,8 @@
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
-#include "libc/intrin/strace.internal.h"
 #include "libc/calls/syscall-sysv.internal.h"
+#include "libc/intrin/strace.internal.h"

 /**
 * Tells you which pages are resident in memory.
@@ -26,7 +26,6 @@
 #include "libc/str/oldutf16.internal.h"
 #include "libc/str/str.h"
 #include "libc/str/thompike.h"
-#include "libc/str/tpdecode.internal.h"
 #include "libc/str/utf16.h"
 #include "libc/sysv/errfuns.h"