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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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9
libc/thread/posixthread.internal.h
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@ -81,10 +81,7 @@ struct PosixThread {
typedef void (*atfork_f)(void);
extern struct PosixThread _pthread_main;
hidden extern pthread_spinlock_t _pthread_keys_lock;
hidden extern uint64_t _pthread_key_usage[(PTHREAD_KEYS_MAX + 63) / 64];
hidden extern pthread_key_dtor _pthread_key_dtor[PTHREAD_KEYS_MAX];
hidden extern _Thread_local void *_pthread_keys[PTHREAD_KEYS_MAX];
extern _Atomic(pthread_key_dtor) _pthread_key_dtor[PTHREAD_KEYS_MAX] hidden;
int _pthread_atfork(atfork_f, atfork_f, atfork_f) hidden;
int _pthread_reschedule(struct PosixThread *) hidden;
@ -97,9 +94,7 @@ void _pthread_zombies_add(struct PosixThread *) hidden;
void _pthread_zombies_purge(void) hidden;
void _pthread_zombies_decimate(void) hidden;
void _pthread_zombies_harvest(void) hidden;
void _pthread_key_destruct(void *[PTHREAD_KEYS_MAX]) hidden;
void _pthread_key_lock(void) hidden;
void _pthread_key_unlock(void) hidden;
void _pthread_key_destruct(void) hidden;
void _pthread_onfork_prepare(void) hidden;
void _pthread_onfork_parent(void) hidden;
void _pthread_onfork_child(void) hidden;