Make more threading improvements

- 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

View file

@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool cp932ext_encmap_once;
static void *cp932ext_encmap_ptr;
static _Atomic(void *) cp932ext_encmap_ptr;
static const unsigned char cp932ext_encmap_rodata[] = {
0x63, 0x60, 0x18, 0x78, 0xc0, 0xc8, 0x20, 0x56, 0x99, 0xca, 0x20, 0xb8, 0x1f,
0xc4, 0x16, 0x61, 0x4c, 0x28, 0x26, 0x45, 0xaf, 0x06, 0xa3, 0xac, 0x3c, 0x88,
@ -36,9 +35,7 @@ static const unsigned char cp932ext_encmap_rodata[] = {
};
optimizesize void *cp932ext_encmap(void) {
if (cp932ext_encmap_once) return cp932ext_encmap_ptr;
return xload(&cp932ext_encmap_once,
&cp932ext_encmap_ptr,
return xload(&cp932ext_encmap_ptr,
cp932ext_encmap_rodata,
367, 1024); /* 35.8398% profit */
}