pid_t fork(void) { pid_t ret; sigset_t set; __fork_handler(-1); __block_all_sigs(&set); #ifdef SYS_fork ret = syscall(SYS_fork); #else ret = syscall(SYS_clone, SIGCHLD, 0); #endif if (libc.has_thread_pointer && !ret) { pthread_t self = __pthread_self(); self->tid = self->pid = __syscall(SYS_getpid); memset(&self->robust_list, 0, sizeof self->robust_list); libc.threads_minus_1 = 0; } __restore_sigs(&set); __fork_handler(!ret); return ret; }
pid_t fork(void) { pid_t ret; sigset_t set; __fork_handler(-1); __block_all_sigs(&set); #ifdef SYS_fork ret = syscall(SYS_fork); #else ret = syscall(SYS_clone, SIGCHLD, 0); #endif if (!ret) { pthread_t self = __pthread_self(); self->tid = __syscall(SYS_gettid); self->robust_list.off = 0; self->robust_list.pending = 0; libc.threads_minus_1 = 0; } __restore_sigs(&set); __fork_handler(!ret); return ret; }