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3699ef99de
pthread_attr_destroy needs to be a weak alias to avoid future linknamespace failures. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include "pthreadP.h"
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#include <shlib-compat.h>
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struct pthread_attr *__attr_list;
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int __attr_list_lock = LLL_LOCK_INITIALIZER;
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int
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__pthread_attr_init (pthread_attr_t *attr)
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{
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struct pthread_attr *iattr;
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ASSERT_TYPE_SIZE (pthread_attr_t, __SIZEOF_PTHREAD_ATTR_T);
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ASSERT_PTHREAD_INTERNAL_SIZE (pthread_attr_t, struct pthread_attr);
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/* Many elements are initialized to zero so let us do it all at
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once. This also takes care of clearing the bytes which are not
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internally used. */
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memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T);
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iattr = (struct pthread_attr *) attr;
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/* Default guard size specified by the standard. */
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iattr->guardsize = __getpagesize ();
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return 0;
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}
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libc_hidden_def (__pthread_attr_init)
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versioned_symbol (libc, __pthread_attr_init, pthread_attr_init, GLIBC_2_1);
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#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1)
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int
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__pthread_attr_init_2_0 (pthread_attr_t *attr)
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{
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/* This code is specific to the old LinuxThread code which has a too
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small pthread_attr_t definition. The struct looked like
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this: */
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struct old_attr
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{
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int detachstate;
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int schedpolicy;
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struct sched_param schedparam;
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int inheritsched;
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int scope;
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};
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struct pthread_attr *iattr;
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/* Many elements are initialized to zero so let us do it all at
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once. This also takes care of clearing the bytes which are not
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internally used. */
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memset (attr, '\0', sizeof (struct old_attr));
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iattr = (struct pthread_attr *) attr;
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iattr->flags |= ATTR_FLAG_OLDATTR;
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/* We cannot enqueue the attribute because that member is not in the
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old attribute structure. */
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return 0;
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}
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compat_symbol (libc, __pthread_attr_init_2_0, pthread_attr_init, GLIBC_2_0);
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#endif
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