mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 17:53:37 +08:00
26f7c72a99
Most systems are SMP, so optimizing for the UP case is no longer approriate. A dynamic check based on the kernel identification has been only implemented for i386 anyway. To disable adaptive mutexes on sh, define DEFAULT_ADAPTIVE_COUNT as zero for this architecture. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/* Copyright (C) 2004-2020 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <pthreadP.h>
|
|
#include <stdlib.h>
|
|
#include <tls.h>
|
|
#include <unistd.h>
|
|
|
|
/* Default thread attributes for the case when the user does not
|
|
provide any. */
|
|
union pthread_attr_transparent __default_pthread_attr attribute_hidden;
|
|
|
|
/* Mutex protecting __default_pthread_attr. */
|
|
int __default_pthread_attr_lock = LLL_LOCK_INITIALIZER;
|
|
|
|
#ifndef TLS_MULTIPLE_THREADS_IN_TCB
|
|
/* Variable set to a nonzero value either if more than one thread runs or ran,
|
|
or if a single-threaded process is trying to cancel itself. See
|
|
nptl/descr.h for more context on the single-threaded process case. */
|
|
int __pthread_multiple_threads attribute_hidden;
|
|
#endif
|
|
|
|
/* Table of the key information. */
|
|
struct pthread_key_struct __pthread_keys[PTHREAD_KEYS_MAX]
|
|
__attribute__ ((nocommon));
|
|
hidden_data_def (__pthread_keys)
|