/* Low-level thread creation for NPTL. Stub version. Copyright (C) 2014-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ /* See the comments in pthread_create.c for the requirements for these two macros and the create_thread function. */ #define START_THREAD_DEFN \ static void __attribute__ ((noreturn)) start_thread (void) #define START_THREAD_SELF THREAD_SELF static int create_thread (struct pthread *pd, const struct pthread_attr *attr, bool stopped_start, STACK_VARIABLES_PARMS, bool *thread_ran) { /* If the implementation needs to do some tweaks to the thread after it has been created at the OS level, it can set STOPPED_START here. */ pd->stopped_start = stopped_start; if (__glibc_unlikely (stopped_start)) /* We make sure the thread does not run far by forcing it to get a lock. We lock it here too so that the new thread cannot continue until we tell it to. */ lll_lock (pd->lock, LLL_PRIVATE); return ENOSYS; /* It's started now, so if we fail below, we'll have to cancel it and let it clean itself up. */ *thread_ran = true; return 0; }