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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/gb2312_decmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool gb2312_decmap_once;
static void *gb2312_decmap_ptr;
static _Atomic(void *) gb2312_decmap_ptr;
static const unsigned char gb2312_decmap_rodata[] = {
0xed, 0xcb, 0xbd, 0x2b, 0xc4, 0x01, 0x00, 0xc6, 0xf1, 0xdf, 0xef, 0xbc, 0xdc,
0x1d, 0x0e, 0xe7, 0xed, 0xce, 0x4b, 0xea, 0x91, 0x62, 0x52, 0x67, 0xa1, 0x4c,
@ -26,9 +25,7 @@ static const unsigned char gb2312_decmap_rodata[] = {
};
optimizesize void *gb2312_decmap(void) {
if (gb2312_decmap_once) return gb2312_decmap_ptr;
return xload(&gb2312_decmap_once,
&gb2312_decmap_ptr,
return xload(&gb2312_decmap_ptr,
gb2312_decmap_rodata,
242, 1024); /* 23.6328% profit */
}