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Make more threading improvements

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- ASAN memory morgue is now lockless
- Make C11 atomics header more portable
- Rewrote pthread keys support to be lockless
- Simplify Python's unicode table unpacking code
- Make crash report write(2) closer to being atomic
- Make it possible to strace/ftrace a single thread
- ASAN now checks nul-terminated strings fast and properly
- Windows fork() now restores TLS memory of calling thread
This commit is contained in:
Justine Tunney 2022-11-01 22:36:03 -07:00
parent d7b88734cd
commit e522aa3a07
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GPG key ID: BE714B4575D6E328
189 changed files with 1363 additions and 1217 deletions
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7
third_party/python/Modules/cjkcodecs/jisxcommon_encmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool jisxcommon_encmap_once;
static void *jisxcommon_encmap_ptr;
static _Atomic(void *) jisxcommon_encmap_ptr;
static const unsigned char jisxcommon_encmap_rodata[] = {
0xed, 0xcb, 0x3d, 0x4f, 0x93, 0x61, 0x18, 0xc5, 0xf1, 0x73, 0xdd, 0xcf, 0x53,
0x6a, 0xd1, 0x0a, 0xad, 0xa8, 0x55, 0xaa, 0xf8, 0x86, 0x50, 0xb0, 0x82, 0x56,
@ -36,9 +35,7 @@ static const unsigned char jisxcommon_encmap_rodata[] = {
};
optimizesize void *jisxcommon_encmap(void) {
if (jisxcommon_encmap_once) return jisxcommon_encmap_ptr;
return xload(&jisxcommon_encmap_once,
&jisxcommon_encmap_ptr,
return xload(&jisxcommon_encmap_ptr,
jisxcommon_encmap_rodata,
370, 1024); /* 36.1328% profit */
}