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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/gb18030ext_decmap.c vendored
View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool gb18030ext_decmap_once;
static void *gb18030ext_decmap_ptr;
static _Atomic(void *) gb18030ext_decmap_ptr;
static const unsigned char gb18030ext_decmap_rodata[] = {
0x63, 0x60, 0x18, 0x05, 0xa3, 0x60, 0x60, 0x01, 0x23, 0x83, 0xc3, 0x82, 0x24,
0x06, 0x87, 0x7f, 0x8a, 0x8c, 0x0e, 0x0b, 0x9a, 0x18, 0x1d, 0xfe, 0x39, 0x32,
@ -15,9 +14,7 @@ static const unsigned char gb18030ext_decmap_rodata[] = {
};
optimizesize void *gb18030ext_decmap(void) {
if (gb18030ext_decmap_once) return gb18030ext_decmap_ptr;
return xload(&gb18030ext_decmap_once,
&gb18030ext_decmap_ptr,
return xload(&gb18030ext_decmap_ptr,
gb18030ext_decmap_rodata,
100, 1024); /* 9.76562% profit */
}