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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_encmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool gb18030ext_encmap_once;
static void *gb18030ext_encmap_ptr;
static _Atomic(void *) gb18030ext_encmap_ptr;
static const unsigned char gb18030ext_encmap_rodata[] = {
0x63, 0x60, 0x60, 0x60, 0x60, 0x64, 0xf8, 0xf9, 0x93, 0x61, 0x80, 0x00, 0x13,
0xc3, 0x9a, 0x35, 0xe4, 0xe8, 0x63, 0x66, 0x68, 0x3c, 0xe5, 0xcb, 0xf0, 0xe1,
@ -19,9 +18,7 @@ static const unsigned char gb18030ext_encmap_rodata[] = {
};
optimizesize void *gb18030ext_encmap(void) {
if (gb18030ext_encmap_once) return gb18030ext_encmap_ptr;
return xload(&gb18030ext_encmap_once,
&gb18030ext_encmap_ptr,
return xload(&gb18030ext_encmap_ptr,
gb18030ext_encmap_rodata,
146, 1024); /* 14.2578% profit */
}