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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/__jisx0212_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool __jisx0212_decmap_once;
static void *__jisx0212_decmap_ptr;
static _Atomic(void *) __jisx0212_decmap_ptr;
static const unsigned char __jisx0212_decmap_rodata[3327] = {
0x8d, 0x58, 0x5d, 0xa8, 0x6d, 0x55, 0x15, 0x6e, 0x8d, 0x3d, 0x9d, 0x6b, 0x38,
0xcf, 0x74, 0xde, 0xe9, 0x74, 0xb9, 0xdc, 0x6d, 0xb7, 0xdb, 0xe3, 0xe1, 0x74,
@ -263,9 +262,7 @@ static const unsigned char __jisx0212_decmap_rodata[3327] = {
};
optimizesize void *__jisx0212_decmap(void) {
if (__jisx0212_decmap_once) return __jisx0212_decmap_ptr;
return xloadzd(&__jisx0212_decmap_once,
&__jisx0212_decmap_ptr,
return xloadzd(&__jisx0212_decmap_ptr,
__jisx0212_decmap_rodata,
3327, 6340, 6179, 2, 0xebc09e11u); /* 26.9218% profit */
}