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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[] = {
0xdc, 0xbc, 0xe5, 0x72, 0x63, 0xcb, 0x96, 0x2e, 0xfa, 0x2c, 0x92, 0x35, 0x05,
0xb6, 0x6c, 0x31, 0x33, 0x33, 0x33, 0xb3, 0x2d, 0x99, 0x41, 0x66, 0x78, 0x98,
@ -2101,9 +2100,7 @@ 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,
27219, 44032); /* 61.8164% profit */
}