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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/__jisx0208_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool __jisx0208_decmap_once;
static void *__jisx0208_decmap_ptr;
static _Atomic(void *) __jisx0208_decmap_ptr;
static const unsigned char __jisx0208_decmap_rodata[9445] = {
0xb5, 0x7a, 0x7b, 0x54, 0x14, 0x57, 0xd6, 0xef, 0xb7, 0x4f, 0x9d, 0x7a, 0x76,
0x75, 0x75, 0x75, 0xf5, 0x83, 0xa6, 0x69, 0x9a, 0xa6, 0x69, 0x9b, 0xa7, 0x08,
@ -734,9 +733,7 @@ static const unsigned char __jisx0208_decmap_rodata[9445] = {
};
optimizesize void *__jisx0208_decmap(void) {
if (__jisx0208_decmap_once) return __jisx0208_decmap_ptr;
return xloadzd(&__jisx0208_decmap_once,
&__jisx0208_decmap_ptr,
return xloadzd(&__jisx0208_decmap_ptr,
__jisx0208_decmap_rodata,
9445, 10703, 6956, 2, 0x09f8b079u); /* 67.891% profit */
}