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NPTL: Add stub createthread.c

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Roland McGrath 2014-11-18 11:03:35 -08:00
parent 6540b9916b
commit d71035bd9a
2 changed files with 49 additions and 0 deletions
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2014-11-18 Roland McGrath <roland@hack.frob.com>
* nptl/createthread.c: New file.
* nptl/createthread.c: Moved ...
* sysdeps/unix/sysv/linux/createthread.c: ... here.

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nptl/createthread.c Normal file
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/* Low-level thread creation for NPTL. Stub version.
Copyright (C) 2014 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;
}