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-rw-r--r--libc/misc/dirent/opendir.c2
-rw-r--r--libc/misc/pthread/Makefile.in2
-rw-r--r--libc/misc/pthread/unlock.c27
-rw-r--r--libc/misc/pthread/weaks.c44
-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_mutex.h22
-rw-r--r--libc/sysdeps/linux/common/bits/uClibc_pthread.h7
6 files changed, 22 insertions, 82 deletions
diff --git a/libc/misc/dirent/opendir.c b/libc/misc/dirent/opendir.c
index 4a23ab061..66a5cc9e9 100644
--- a/libc/misc/dirent/opendir.c
+++ b/libc/misc/dirent/opendir.c
@@ -35,7 +35,7 @@ static DIR *fd_to_DIR(int fd, __blksize_t size)
free(ptr);
return NULL;
}
- __pthread_mutex_init(&ptr->dd_lock, NULL);
+ __UCLIBC_MUTEX_INIT_VAR(ptr->dd_lock);
return ptr;
}
diff --git a/libc/misc/pthread/Makefile.in b/libc/misc/pthread/Makefile.in
index 504aa254e..2f436ac1c 100644
--- a/libc/misc/pthread/Makefile.in
+++ b/libc/misc/pthread/Makefile.in
@@ -11,8 +11,6 @@ MISC_PTHREAD_DIR := $(top_srcdir)libc/misc/pthread
MISC_PTHREAD_OUT := $(top_builddir)libc/misc/pthread
libc-shared-$(UCLIBC_HAS_TLS) += $(MISC_PTHREAD_OUT)/tsd.os
-libc-$(UCLIBC_HAS_THREADS) += $(MISC_PTHREAD_OUT)/unlock.o
-libc-$(UCLIBC_HAS_THREADS) += $(MISC_PTHREAD_OUT)/weaks.o
objclean-y += CLEAN_libc/misc/pthread
diff --git a/libc/misc/pthread/unlock.c b/libc/misc/pthread/unlock.c
deleted file mode 100644
index 04de0df58..000000000
--- a/libc/misc/pthread/unlock.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/* The weak pthread functions for Linux.
- Copyright (C) 1996, 1997, 1998 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <pthread.h>
-#include <bits/uClibc_mutex.h>
-
-void attribute_hidden __uclibc_mutex_unlock (void *arg)
-{
- pthread_mutex_t *__mutex = (pthread_mutex_t *)arg;
- __pthread_mutex_unlock(__mutex);
-}
diff --git a/libc/misc/pthread/weaks.c b/libc/misc/pthread/weaks.c
deleted file mode 100644
index 580c3eb07..000000000
--- a/libc/misc/pthread/weaks.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/* The weak pthread functions for Linux.
- Copyright (C) 1996, 1997, 1998 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <libc-internal.h>
-
-/* Weaks for internal library use only.
- *
- * We need to define weaks here to cover all the pthread functions that
- * libc itself will use so that we aren't forced to link libc against
- * libpthread. This file is only used in libc.a and since we have
- * weaks here, they will be automatically overridden by libpthread.a
- * if it gets linked in.
- */
-
-static int __pthread_return_0 (void) { return 0; }
-static void __pthread_return_void (void) { return; }
-
-weak_alias (__pthread_return_0, __pthread_mutex_init)
-weak_alias (__pthread_return_0, __pthread_mutex_lock)
-weak_alias (__pthread_return_0, __pthread_mutex_trylock)
-weak_alias (__pthread_return_0, __pthread_mutex_unlock)
-weak_alias (__pthread_return_void, _pthread_cleanup_push_defer)
-weak_alias (__pthread_return_void, _pthread_cleanup_pop_restore)
-#ifdef __UCLIBC_HAS_THREADS_NATIVE__
-weak_alias (__pthread_return_0, __pthread_mutexattr_init)
-weak_alias (__pthread_return_0, __pthread_mutexattr_destroy)
-weak_alias (__pthread_return_0, __pthread_mutexattr_settype)
-#endif
diff --git a/libc/sysdeps/linux/common/bits/uClibc_mutex.h b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
index c6094c3d2..02bcc7225 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_mutex.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_mutex.h
@@ -13,8 +13,16 @@
#ifdef __UCLIBC_HAS_THREADS__
#include <pthread.h>
+#include <bits/libc-lock.h>
#include <bits/uClibc_pthread.h>
+#define __uclibc_maybe_call(FUNC, ARGS) \
+ (__extension__ ({ \
+ __typeof (FUNC) *_fn = (FUNC); \
+ if (_fn != NULL) { (*_fn) ARGS; } \
+ }))
+
+
#define __UCLIBC_MUTEX_TYPE pthread_mutex_t
#define __UCLIBC_MUTEX(M) pthread_mutex_t M
@@ -22,19 +30,23 @@
#define __UCLIBC_MUTEX_STATIC(M,I) static pthread_mutex_t M = I
#define __UCLIBC_MUTEX_EXTERN(M) extern pthread_mutex_t M
+#define __UCLIBC_MUTEX_INIT_VAR(M) \
+ __uclibc_maybe_call(__pthread_mutex_init,(&(M),NULL))
+
#define __UCLIBC_MUTEX_LOCK_CANCEL_UNSAFE(M) \
- __pthread_mutex_lock(&(M))
+ __uclibc_maybe_call(__pthread_mutex_lock,(&(M)))
#define __UCLIBC_MUTEX_UNLOCK_CANCEL_UNSAFE(M) \
- __pthread_mutex_unlock(&(M))
+ __uclibc_maybe_call(__pthread_mutex_unlock,(&(M)))
#define __UCLIBC_MUTEX_TRYLOCK_CANCEL_UNSAFE(M) \
- __pthread_mutex_trylock(&(M))
+ __uclibc_maybe_call(__pthread_mutex_trylock,(&(M)))
#define __UCLIBC_MUTEX_CONDITIONAL_LOCK(M,C) \
do { \
struct _pthread_cleanup_buffer __infunc_pthread_cleanup_buffer; \
- if (C) { \
+ int __infunc_need_locking = ((C) && (__pthread_mutex_lock != NULL)); \
+ if (__infunc_need_locking) { \
_pthread_cleanup_push_defer(&__infunc_pthread_cleanup_buffer, \
(void (*) (void *))__pthread_mutex_unlock, \
&(M)); \
@@ -43,7 +55,7 @@
((void)0)
#define __UCLIBC_MUTEX_CONDITIONAL_UNLOCK(M,C) \
- if (C) { \
+ if (__infunc_need_locking) { \
_pthread_cleanup_pop_restore(&__infunc_pthread_cleanup_buffer,1); \
} \
} while (0)
diff --git a/libc/sysdeps/linux/common/bits/uClibc_pthread.h b/libc/sysdeps/linux/common/bits/uClibc_pthread.h
index 1d6209f5e..15aa1deed 100644
--- a/libc/sysdeps/linux/common/bits/uClibc_pthread.h
+++ b/libc/sysdeps/linux/common/bits/uClibc_pthread.h
@@ -28,6 +28,9 @@
#endif
#if defined _LIBC && (defined IS_IN_libc || defined NOT_IN_libc)
+
+struct _pthread_cleanup_buffer;
+
/* Threading functions internal to uClibc. Make these thread functions
* weak so that we can elide them from single-threaded processes. */
extern int weak_function __pthread_mutex_init (pthread_mutex_t *__mutex,
@@ -35,16 +38,14 @@ extern int weak_function __pthread_mutex_init (pthread_mutex_t *__mutex,
extern int weak_function __pthread_mutex_destroy (pthread_mutex_t *__mutex);
extern int weak_function __pthread_mutex_lock (pthread_mutex_t *__mutex);
extern int weak_function __pthread_mutex_unlock (pthread_mutex_t *__mutex);
-extern void __uclibc_mutex_unlock (void *) attribute_hidden;
extern int weak_function __pthread_mutex_trylock (pthread_mutex_t *__mutex);
-# ifndef __UCLIBC_HAS_THREADS_NATIVE__
extern void weak_function _pthread_cleanup_push_defer (
struct _pthread_cleanup_buffer *__buffer,
void (*__routine) (void *), void *__arg);
extern void weak_function _pthread_cleanup_pop_restore (
struct _pthread_cleanup_buffer *__buffer,
int __execute);
-# endif
+
#endif
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 23:30:02 +0000