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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[] = {
0x63, 0x60, 0x18, 0x05, 0x23, 0x1d, 0x30, 0x32, 0xc4, 0x9f, 0xc2, 0x26, 0x9e,
0xcb, 0xe0, 0x30, 0x67, 0x34, 0x74, 0x06, 0x1f, 0x38, 0xc5, 0xe0, 0xf0, 0xa7,
@ -11,9 +10,7 @@ static const unsigned char cp932ext_decmap_rodata[] = {
};
optimizesize void *cp932ext_decmap(void) {
if (cp932ext_decmap_once) return cp932ext_decmap_ptr;
return xload(&cp932ext_decmap_once,
&cp932ext_decmap_ptr,
return xload(&cp932ext_decmap_ptr,
cp932ext_decmap_rodata,
48, 1024); /* 4.6875% profit */
}