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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/__ksx1001_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool __ksx1001_decmap_once;
static void *__ksx1001_decmap_ptr;
static _Atomic(void *) __ksx1001_decmap_ptr;
static const unsigned char __ksx1001_decmap_rodata[10685] = {
0xb5, 0x79, 0x0d, 0x78, 0x93, 0x55, 0x9a, 0xf6, 0x3e, 0xe7, 0x9c, 0xf7, 0x27,
0x6f, 0xfe, 0x93, 0x36, 0x4d, 0xff, 0x4b, 0x29, 0x50, 0x7e, 0x06, 0x11, 0x10,
@ -829,9 +828,7 @@ static const unsigned char __ksx1001_decmap_rodata[10685] = {
};
optimizesize void *__ksx1001_decmap(void) {
if (__ksx1001_decmap_once) return __ksx1001_decmap_ptr;
return xloadzd(&__ksx1001_decmap_once,
&__ksx1001_decmap_ptr,
return xloadzd(&__ksx1001_decmap_ptr,
__ksx1001_decmap_rodata,
10685, 13606, 8264, 2, 0x91d24d83u); /* 64.6479% profit */
}