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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/__gb18030ext_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool __gb18030ext_decmap_once;
static void *__gb18030ext_decmap_ptr;
static _Atomic(void *) __gb18030ext_decmap_ptr;
static const unsigned char __gb18030ext_decmap_rodata[405] = {
0xeb, 0x99, 0xcc, 0xce, 0x44, 0x11, 0xf8, 0x92, 0xfd, 0x31, 0x9b, 0x89, 0xb6,
0x60, 0x4b, 0xd6, 0xc6, 0x2c, 0x42, 0x6a, 0x3e, 0x65, 0x32, 0xc0, 0xc0, 0xfa,
@ -39,9 +38,7 @@ static const unsigned char __gb18030ext_decmap_rodata[405] = {
};
optimizesize void *__gb18030ext_decmap(void) {
if (__gb18030ext_decmap_once) return __gb18030ext_decmap_ptr;
return xloadzd(&__gb18030ext_decmap_once,
&__gb18030ext_decmap_ptr,
return xloadzd(&__gb18030ext_decmap_ptr,
__gb18030ext_decmap_rodata,
405, 2867, 2729, 2, 0x8e6ddc4au); /* 7.4203% profit */
}