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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/cp949_encmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool cp949_encmap_once;
static void *cp949_encmap_ptr;
static _Atomic(void *) cp949_encmap_ptr;
static const unsigned char cp949_encmap_rodata[] = {
0xcd, 0xd0, 0x5b, 0x48, 0x93, 0x61, 0x18, 0x07, 0xf0, 0xe7, 0xfd, 0x0e, 0xfb,
0x76, 0xe8, 0x6b, 0x6d, 0x6a, 0xab, 0x65, 0xa6, 0x35, 0x9d, 0x1d, 0xb6, 0xd4,
@ -49,9 +48,7 @@ static const unsigned char cp949_encmap_rodata[] = {
};
optimizesize void *cp949_encmap(void) {
if (cp949_encmap_once) return cp949_encmap_ptr;
return xload(&cp949_encmap_once,
&cp949_encmap_ptr,
return xload(&cp949_encmap_ptr,
cp949_encmap_rodata,
534, 1024); /* 52.1484% profit */
}