weak_alias(dummy_0, __do_orphaned_stdio_locks);
weak_alias(dummy_0, __dl_thread_cleanup);
+static void *dummy_1(void *p)
+{
+ return 0;
+}
+weak_alias(dummy_1, __start_sched);
+
_Noreturn void __pthread_exit(void *result)
{
pthread_t self = __pthread_self();
static int start(void *p)
{
pthread_t self = p;
- /* States for startlock:
- * 0 = no need for start sync
- * 1 = waiting for parent to do work
- * 2 = failure in parent, child must abort
- * 3 = success in parent, child must restore sigmask */
- if (self->startlock[0]) {
- __wait(self->startlock, 0, 1, 1);
- if (self->startlock[0] == 2) {
- self->detach_state = DT_DYNAMIC;
- pthread_exit(0);
- }
- __restore_sigs(self->sigmask);
- }
if (self->unblock_cancel)
__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK,
SIGPT_SET, 0, _NSIG/8);
weak_alias(dummy_tsd, __pthread_tsd_main);
volatile int __block_new_threads = 0;
-size_t __default_stacksize = DEFAULT_STACK_SIZE;
-size_t __default_guardsize = DEFAULT_GUARD_SIZE;
+extern size_t __default_stacksize;
+extern size_t __default_guardsize;
static FILE *volatile dummy_file = 0;
weak_alias(dummy_file, __stdin_used);
| CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID | CLONE_DETACHED;
int do_sched = 0;
pthread_attr_t attr = { 0 };
+ struct start_sched_args ssa;
if (!libc.can_do_threads) return ENOSYS;
self = __pthread_self();
new->detach_state = DT_JOINABLE;
}
if (attr._a_sched) {
- do_sched = new->startlock[0] = 1;
- __block_app_sigs(new->sigmask);
+ do_sched = 1;
+ ssa.futex = -1;
+ ssa.start_fn = new->start;
+ ssa.start_arg = new->start_arg;
+ ssa.attr = &attr;
+ new->start = __start_sched;
+ new->start_arg = &ssa;
+ __block_app_sigs(&ssa.mask);
}
new->robust_list.head = &new->robust_list.head;
new->unblock_cancel = self->cancel;
__release_ptc();
if (do_sched) {
- __restore_sigs(new->sigmask);
+ __restore_sigs(&ssa.mask);
}
if (ret < 0) {
}
if (do_sched) {
- ret = __syscall(SYS_sched_setscheduler, new->tid,
- attr._a_policy, &attr._a_prio);
- a_store(new->startlock, ret<0 ? 2 : 3);
- __wake(new->startlock, 1, 1);
- if (ret < 0) return -ret;
+ __futexwait(&ssa.futex, -1, 1);
+ ret = ssa.futex;
+ if (ret) return ret;
}
*res = new;