glibc/nptl/pthread_attr_destroy.c
Ulrich Drepper 5cb48b8492 Update.
2003-11-26  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_PROT_GROWSUPDOWN): Define for 2.6.1 and up.
	* sysdeps/unix/sysv/linux/dl-execstack.c: Omit compatibility code
	if __ASSUME_PROT_GROWSUPDOWN is defined.

2003-11-26  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/dl-execstack.c
	(_dl_make_stack_executable): Set dl_stack_flags always for
	success.
2003-11-27 05:24:58 +00:00

79 lines
2.1 KiB
C

/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "pthreadP.h"
#include <shlib-compat.h>
int
__pthread_attr_destroy (attr)
pthread_attr_t *attr;
{
struct pthread_attr *iattr;
assert (sizeof (*attr) >= sizeof (struct pthread_attr));
iattr = (struct pthread_attr *) attr;
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
/* In old struct pthread_attr, neither next nor cpuset are
present. */
if (__builtin_expect ((iattr->flags & ATTR_FLAG_OLDATTR), 0))
return 0;
#endif
/* Enqueue the attributes to the list of all known variables. */
if (DEBUGGING_P)
{
struct pthread_attr *prevp = NULL;
struct pthread_attr *runp;
lll_lock (__attr_list_lock);
runp = __attr_list;
while (runp != NULL && runp != iattr)
{
prevp = runp;
runp = runp->next;
}
if (runp != NULL)
{
if (prevp == NULL)
__attr_list = iattr->next;
else
prevp->next = iattr->next;
}
lll_unlock (__attr_list_lock);
if (runp == NULL)
/* Not a valid attribute. */
return EINVAL;
}
/* The affinity CPU set might be allocated dynamically. */
free (iattr->cpuset);
return 0;
}
strong_alias (__pthread_attr_destroy, pthread_attr_destroy)