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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/jisx0213_pair_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool jisx0213_pair_decmap_once;
static void *jisx0213_pair_decmap_ptr;
static _Atomic(void *) jisx0213_pair_decmap_ptr;
static const unsigned char jisx0213_pair_decmap_rodata[] = {
0x63, 0x60, 0x18, 0x5c, 0x80, 0x91, 0xa1, 0xbc, 0x9a, 0x8d, 0xa1, 0xbc, 0x8e,
0x8f, 0xa1, 0xa2, 0x02, 0x5d, 0x8e, 0x9f, 0xc1, 0x25, 0x8d, 0x61, 0x14, 0x8c,
@ -10,9 +9,7 @@ static const unsigned char jisx0213_pair_decmap_rodata[] = {
};
optimizesize void *jisx0213_pair_decmap(void) {
if (jisx0213_pair_decmap_once) return jisx0213_pair_decmap_ptr;
return xload(&jisx0213_pair_decmap_once,
&jisx0213_pair_decmap_ptr,
return xload(&jisx0213_pair_decmap_ptr,
jisx0213_pair_decmap_rodata,
32, 1024); /* 3.125% profit */
}