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/* Low-level thread creation for NPTL. NaCl version.
Copyright (C) 2015-2017 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/>. */
#include <nacl-interfaces.h>
#include <pthread-pids.h>
/* 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
/* pthread_create.c defines this using START_THREAD_DEFN
We need a forward declaration here so we can take its address. */
static void start_thread (void) __attribute__ ((noreturn));
static int
create_thread (struct pthread *pd, const struct pthread_attr *attr,
bool stopped_start, STACK_VARIABLES_PARMS, bool *thread_ran)
{
pd->tid = __nacl_get_tid (pd);
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);
TLS_DEFINE_INIT_TP (tp, pd);
return __nacl_irt_thread.thread_create (&start_thread, stackaddr, tp);
}
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