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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/big5_encmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool big5_encmap_once;
static void *big5_encmap_ptr;
static _Atomic(void *) big5_encmap_ptr;
static const unsigned char big5_encmap_rodata[] = {
0xed, 0xcf, 0x3b, 0x4c, 0x53, 0x71, 0x14, 0xc7, 0xf1, 0xdf, 0xe9, 0xed, 0x45,
0x4a, 0x6f, 0x1f, 0x80, 0x4f, 0x40, 0xe4, 0xfd, 0x10, 0x51, 0x1e, 0x0a, 0x2a,
@ -37,9 +36,7 @@ static const unsigned char big5_encmap_rodata[] = {
};
optimizesize void *big5_encmap(void) {
if (big5_encmap_once) return big5_encmap_ptr;
return xload(&big5_encmap_once,
&big5_encmap_ptr,
return xload(&big5_encmap_ptr,
big5_encmap_rodata,
384, 1024); /* 37.5% profit */
}