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Make detached threads work better

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This change adds a double linked list of threads, so that pthread_exit()
will know when it should call exit() from an orphaned child. This change
also improves ftrace and strace logging.
This commit is contained in:
Justine Tunney 2022-11-09 03:58:57 -08:00
parent b74d8c1acd
commit cee6871710
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GPG key ID: BE714B4575D6E328
37 changed files with 638 additions and 314 deletions
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16
libc/intrin/asan.c
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@ -953,7 +953,7 @@ static void *__asan_morgue_add(void *p) {
p, memory_order_acq_rel);
}
static void __asan_morgue_flush(void) {
__attribute__((__destructor__)) static void __asan_morgue_flush(void) {
unsigned i;
for (i = 0; i < ARRAYLEN(__asan_morgue.p); ++i) {
if (atomic_load_explicit(__asan_morgue.p + i, memory_order_acquire)) {
@ -1461,8 +1461,8 @@ static textstartup void __asan_shadow_existing_mappings(void) {
__asan_poison((void *)GetStackAddr(), PAGESIZE, kAsanStackOverflow);
}
textstartup void __asan_init(int argc, char **argv, char **envp,
intptr_t *auxv) {
__attribute__((__constructor__)) void __asan_init(int argc, char **argv,
char **envp, intptr_t *auxv) {
static bool once;
if (!_cmpxchg(&once, false, true)) return;
if (IsWindows() && NtGetVersion() < kNtVersionWindows10) {
@ -1497,13 +1497,3 @@ textstartup void __asan_init(int argc, char **argv, char **envp,
STRACE("/_/ \\_\\____/_/ \\_\\_| \\_|");
STRACE("cosmopolitan memory safety module initialized");
}
static textstartup void __asan_ctor(void) {
if (_weaken(__cxa_atexit)) {
_weaken(__cxa_atexit)(__asan_morgue_flush, NULL, NULL);
}
}
const void *const g_asan_ctor[] initarray = {
__asan_ctor,
};