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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2016-09-24 02:55:31 +0200
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-09-26 20:23:24 +0200
commit29ff9055c80efe77a7130767a9fcb3ab8c67e8ce (patch)
treeb061656c1336d7d73ed5eef59352e3d50d8147a7 /libpthread/nptl/forward.c
parentb06f85d62c41a4ed108628b1c564203f36c0ab4e (diff)
use a single libc and deduplicate threading code
Similar to musl libc a single libc has many benefits and solves some open issues with uClibc-ng. - no pthread_mutex_* weak symbols exported anymore - applications no longer failing to link when either -lrt or -lpthread are missing for dynamic and static linking mode - smaller C library - slightly better runtime performance
Diffstat (limited to 'libpthread/nptl/forward.c')
-rw-r--r--libpthread/nptl/forward.c169
1 files changed, 0 insertions, 169 deletions
diff --git a/libpthread/nptl/forward.c b/libpthread/nptl/forward.c
deleted file mode 100644
index 076d43711..000000000
--- a/libpthread/nptl/forward.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/* Copyright (C) 2002, 2003, 2004, 2007 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
- <http://www.gnu.org/licenses/>. */
-
-#include <dlfcn.h>
-#include <pthreadP.h>
-#include <signal.h>
-#include <stdlib.h>
-
-#include <atomic.h>
-#include <sysdep.h>
-
-
-/* Pointers to the libc functions. */
-struct pthread_functions __libc_pthread_functions attribute_hidden;
-int __libc_pthread_functions_init attribute_hidden;
-
-
-#define FORWARD2(name, rettype, decl, params, defaction) \
-rettype \
-name decl \
-{ \
- if (!__libc_pthread_functions_init) { \
- defaction; \
- } else { \
- return PTHFCT_CALL (ptr_##name, params); \
- } \
-}
-
-#define FORWARD(name, decl, params, defretval) \
- FORWARD2 (name, int, decl, params, return defretval)
-
-
-FORWARD (pthread_attr_destroy, (pthread_attr_t *attr), (attr), 0)
-
-FORWARD (__pthread_attr_init_2_1, (pthread_attr_t *attr), (attr), 0)
-weak_alias(__pthread_attr_init_2_1, pthread_attr_init)
-
-FORWARD (pthread_attr_getdetachstate,
- (const pthread_attr_t *attr, int *detachstate), (attr, detachstate),
- 0)
-FORWARD (pthread_attr_setdetachstate, (pthread_attr_t *attr, int detachstate),
- (attr, detachstate), 0)
-
-FORWARD (pthread_attr_getinheritsched,
- (const pthread_attr_t *attr, int *inherit), (attr, inherit), 0)
-FORWARD (pthread_attr_setinheritsched, (pthread_attr_t *attr, int inherit),
- (attr, inherit), 0)
-
-FORWARD (pthread_attr_getschedparam,
- (const pthread_attr_t *attr, struct sched_param *param),
- (attr, param), 0)
-FORWARD (pthread_attr_setschedparam,
- (pthread_attr_t *attr, const struct sched_param *param),
- (attr, param), 0)
-
-FORWARD (pthread_attr_getschedpolicy,
- (const pthread_attr_t *attr, int *policy), (attr, policy), 0)
-FORWARD (pthread_attr_setschedpolicy, (pthread_attr_t *attr, int policy),
- (attr, policy), 0)
-
-FORWARD (pthread_attr_getscope,
- (const pthread_attr_t *attr, int *scope), (attr, scope), 0)
-FORWARD (pthread_attr_setscope, (pthread_attr_t *attr, int scope),
- (attr, scope), 0)
-
-
-FORWARD (pthread_condattr_destroy, (pthread_condattr_t *attr), (attr), 0)
-FORWARD (pthread_condattr_init, (pthread_condattr_t *attr), (attr), 0)
-
-FORWARD (__pthread_cond_broadcast, (pthread_cond_t *cond), (cond), 0)
-weak_alias(__pthread_cond_broadcast, pthread_cond_broadcast)
-
-FORWARD (__pthread_cond_destroy, (pthread_cond_t *cond), (cond), 0)
-weak_alias(__pthread_cond_destroy, pthread_cond_destroy)
-
-FORWARD (__pthread_cond_init,
- (pthread_cond_t *cond, const pthread_condattr_t *cond_attr),
- (cond, cond_attr), 0)
-weak_alias(__pthread_cond_init, pthread_cond_init)
-
-FORWARD (__pthread_cond_signal, (pthread_cond_t *cond), (cond), 0)
-weak_alias(__pthread_cond_signal, pthread_cond_signal)
-
-FORWARD (__pthread_cond_wait, (pthread_cond_t *cond, pthread_mutex_t *mutex),
- (cond, mutex), 0)
-weak_alias(__pthread_cond_wait, pthread_cond_wait)
-
-FORWARD (__pthread_cond_timedwait,
- (pthread_cond_t *cond, pthread_mutex_t *mutex,
- const struct timespec *abstime), (cond, mutex, abstime), 0)
-weak_alias(__pthread_cond_timedwait, pthread_cond_timedwait)
-
-
-FORWARD (pthread_equal, (pthread_t thread1, pthread_t thread2),
- (thread1, thread2), 1)
-
-
-/* Use an alias to avoid warning, as pthread_exit is declared noreturn. */
-FORWARD2 (__pthread_exit, void, (void *retval), (retval), exit (EXIT_SUCCESS))
-strong_alias (__pthread_exit, pthread_exit);
-
-
-FORWARD (pthread_getschedparam,
- (pthread_t target_thread, int *policy, struct sched_param *param),
- (target_thread, policy, param), 0)
-FORWARD (pthread_setschedparam,
- (pthread_t target_thread, int policy,
- const struct sched_param *param), (target_thread, policy, param), 0)
-
-
-FORWARD (pthread_mutex_destroy, (pthread_mutex_t *mutex), (mutex), 0)
-
-FORWARD (pthread_mutex_init,
- (pthread_mutex_t *mutex, const pthread_mutexattr_t *mutexattr),
- (mutex, mutexattr), 0)
-
-FORWARD (pthread_mutex_lock, (pthread_mutex_t *mutex), (mutex), 0)
-weak_alias (pthread_mutex_lock, __pthread_mutex_lock)
-
-FORWARD (pthread_mutex_unlock, (pthread_mutex_t *mutex), (mutex), 0)
-weak_alias (pthread_mutex_unlock, __pthread_mutex_unlock)
-
-FORWARD2 (pthread_self, pthread_t, (void), (), return 0)
-
-
-FORWARD (pthread_setcancelstate, (int state, int *oldstate), (state, oldstate),
- 0)
-
-FORWARD (pthread_setcanceltype, (int type, int *oldtype), (type, oldtype), 0)
-
-#define return /* value is void */
-FORWARD2(_pthread_cleanup_push_defer,
- void, (struct _pthread_cleanup_buffer *buffer, void (*routine)(void *), void *arg),
- (buffer, routine, arg),
- { buffer->__routine = routine; buffer->__arg = arg; });
-
-FORWARD2(_pthread_cleanup_pop_restore,
- void, (struct _pthread_cleanup_buffer *buffer, int execute),
- (buffer, execute),
- if (execute) { buffer->__routine(buffer->__arg); });
-
-FORWARD2(__pthread_unwind,
- void attribute_hidden __attribute ((noreturn)) __cleanup_fct_attribute,
- (__pthread_unwind_buf_t *buf), (buf), {
- /* We cannot call abort() here. */
- INTERNAL_SYSCALL_DECL (err);
- INTERNAL_SYSCALL (kill, err, 1, SIGKILL);
-#if __GNUC_PREREQ(4, 5)
- __builtin_unreachable();
-#else
- while(1);
-#endif
- })
-#undef return