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

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@ -72,10 +72,13 @@ static privileged inline int GetNestingLevel(struct CosmoFtrace *ft,
*/
privileged void ftracer(void) {
long stackuse;
struct CosmoFtrace *ft;
struct CosmoTib *tib;
struct StackFrame *sf;
struct CosmoFtrace *ft;
if (__tls_enabled) {
ft = &__get_tls_privileged()->tib_ftrace;
tib = __get_tls_privileged();
if (tib->tib_ftrace <= 0) return;
ft = &tib->tib_ftracer;
} else {
ft = &g_ftrace;
}