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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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4
libc/thread/pthread_cancel.c
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@ -307,7 +307,7 @@ errno_t pthread_cancel(pthread_t thread) {
void pthread_testcancel(void) {
struct PosixThread *pt;
if (!__tls_enabled) return;
pt = (struct PosixThread *)__get_tls()->tib_pthread;
if (!(pt = (struct PosixThread *)__get_tls()->tib_pthread)) return;
if (pt->flags & PT_NOCANCEL) return;
if ((!(pt->flags & PT_MASKED) || (pt->flags & PT_ASYNC)) &&
atomic_load_explicit(&pt->cancelled, memory_order_acquire)) {
@ -335,7 +335,7 @@ errno_t pthread_testcancel_np(void) {
int rc;
struct PosixThread *pt;
if (!__tls_enabled) return 0;
pt = (struct PosixThread *)__get_tls()->tib_pthread;
if (!(pt = (struct PosixThread *)__get_tls()->tib_pthread)) return 0;
if (pt->flags & PT_NOCANCEL) return 0;
if (!atomic_load_explicit(&pt->cancelled, memory_order_acquire)) return 0;
if (!(pt->flags & PT_MASKED) || (pt->flags & PT_ASYNC)) {