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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/__cp932ext_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool __cp932ext_decmap_once;
static void *__cp932ext_decmap_ptr;
static _Atomic(void *) __cp932ext_decmap_ptr;
static const unsigned char __cp932ext_decmap_rodata[872] = {
0xe5, 0x92, 0x5d, 0x4c, 0xd3, 0x67, 0x18, 0xc5, 0x7d, 0x3e, 0xfe, 0x6f, 0x0b,
0x54, 0xac, 0x5b, 0xd7, 0x2a, 0x73, 0xe0, 0x62, 0x63, 0x1a, 0x56, 0x75, 0x2e,
@ -75,9 +74,7 @@ static const unsigned char __cp932ext_decmap_rodata[872] = {
};
optimizesize void *__cp932ext_decmap(void) {
if (__cp932ext_decmap_once) return __cp932ext_decmap_ptr;
return xloadzd(&__cp932ext_decmap_once,
&__cp932ext_decmap_ptr,
return xloadzd(&__cp932ext_decmap_ptr,
__cp932ext_decmap_rodata,
872, 1534, 969, 2, 0xde26b180u); /* 44.9948% profit */
}