mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 14:30:06 +00:00
ceda365fba
The remaining symbols are mostly used by libthread_db. __pthread_get_minstack has to remain exported even though unused. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* Copyright (C) 2002-2021 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include "pthreadP.h"
|
|
#include <futex-internal.h>
|
|
#include <kernel-features.h>
|
|
#include <shlib-compat.h>
|
|
|
|
static const struct pthread_barrierattr default_barrierattr =
|
|
{
|
|
.pshared = PTHREAD_PROCESS_PRIVATE
|
|
};
|
|
|
|
|
|
int
|
|
___pthread_barrier_init (pthread_barrier_t *barrier,
|
|
const pthread_barrierattr_t *attr, unsigned int count)
|
|
{
|
|
ASSERT_TYPE_SIZE (pthread_barrier_t, __SIZEOF_PTHREAD_BARRIER_T);
|
|
ASSERT_PTHREAD_INTERNAL_SIZE (pthread_barrier_t,
|
|
struct pthread_barrier);
|
|
|
|
struct pthread_barrier *ibarrier;
|
|
|
|
/* XXX EINVAL is not specified by POSIX as a possible error code for COUNT
|
|
being too large. See pthread_barrier_wait for the reason for the
|
|
comparison with BARRIER_IN_THRESHOLD. */
|
|
if (__glibc_unlikely (count == 0 || count >= BARRIER_IN_THRESHOLD))
|
|
return EINVAL;
|
|
|
|
const struct pthread_barrierattr *iattr
|
|
= (attr != NULL
|
|
? (struct pthread_barrierattr *) attr
|
|
: &default_barrierattr);
|
|
|
|
ibarrier = (struct pthread_barrier *) barrier;
|
|
|
|
/* Initialize the individual fields. */
|
|
ibarrier->in = 0;
|
|
ibarrier->out = 0;
|
|
ibarrier->count = count;
|
|
ibarrier->current_round = 0;
|
|
ibarrier->shared = (iattr->pshared == PTHREAD_PROCESS_PRIVATE
|
|
? FUTEX_PRIVATE : FUTEX_SHARED);
|
|
|
|
return 0;
|
|
}
|
|
versioned_symbol (libc, ___pthread_barrier_init, pthread_barrier_init,
|
|
GLIBC_2_34);
|
|
libc_hidden_ver (___pthread_barrier_init, __pthread_barrier_init)
|
|
#ifndef SHARED
|
|
strong_alias (___pthread_barrier_init, __pthread_barrier_init)
|
|
#endif
|
|
|
|
#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
|
|
compat_symbol (libpthread, ___pthread_barrier_init, pthread_barrier_init,
|
|
GLIBC_2_2);
|
|
#endif
|