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authorUlrich Drepper <drepper@redhat.com>2003-09-30 02:15:31 +0000
committerUlrich Drepper <drepper@redhat.com>2003-09-30 02:15:31 +0000
commit94ae6d75adab2808237d284f9f5a927cf2845ec0 (patch)
tree3368fad0f34d8d515b1c91b3ddd1d43cec974aed /linuxthreads/sysdeps
parent3c6904fb49841a94395bcfe863eb6c8bf10a29d2 (diff)
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Update.
* sysdeps/pthread/malloc-machine.h: New file. 2003-09-27 Wolfram Gloger <wg@malloc.de>
Diffstat (limited to 'linuxthreads/sysdeps')
-rw-r--r--linuxthreads/sysdeps/pthread/malloc-machine.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/pthread/malloc-machine.h b/linuxthreads/sysdeps/pthread/malloc-machine.h
new file mode 100644
index 0000000000..7eff836285
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/malloc-machine.h
@@ -0,0 +1,83 @@
+/* Basic platform-independent macro definitions for mutexes,
+ thread-specific data and parameters for malloc.
+ Copyright (C) 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MALLOC_MACHINE_H
+#define _MALLOC_MACHINE_H
+
+#undef thread_atfork_static
+
+#include <atomic.h>
+#include <bits/libc-lock.h>
+
+__libc_lock_define (typedef, mutex_t)
+
+#if defined(__libc_maybe_call2)
+
+#define mutex_init(m) \
+ __libc_maybe_call2 (pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
+#define mutex_lock(m) \
+ __libc_maybe_call2 (pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
+#define mutex_trylock(m) \
+ __libc_maybe_call2 (pthread_mutex_trylock, (m), \
+ (*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
+#define mutex_unlock(m) \
+ __libc_maybe_call2 (pthread_mutex_unlock, (m), (*(int *)(m) = 0))
+
+#else
+
+#define mutex_init(m) \
+ __libc_maybe_call (__pthread_mutex_init, (m, NULL), (*(int *)(m) = 0))
+#define mutex_lock(m) \
+ __libc_maybe_call (__pthread_mutex_lock, (m), ((*(int *)(m) = 1), 0))
+#define mutex_trylock(m) \
+ __libc_maybe_call (__pthread_mutex_trylock, (m), \
+ (*(int *)(m) ? 1 : ((*(int *)(m) = 1), 0)))
+#define mutex_unlock(m) \
+ __libc_maybe_call (__pthread_mutex_unlock, (m), (*(int *)(m) = 0))
+
+#endif
+
+/* This is defined by newer gcc version unique for each module. */
+extern void *__dso_handle __attribute__ ((__weak__));
+
+#include <fork.h>
+
+#ifdef SHARED
+# define thread_atfork(prepare, parent, child) \
+ __register_atfork (prepare, parent, child, __dso_handle)
+#else
+# define thread_atfork(prepare, parent, child) \
+ __register_atfork (prepare, parent, child, \
+ &__dso_handle == NULL ? NULL : __dso_handle)
+#endif
+
+/* thread specific data for glibc */
+
+#include <bits/libc-tsd.h>
+
+typedef int tsd_key_t[1]; /* no key data structure, libc magic does it */
+__libc_tsd_define (static, MALLOC) /* declaration/common definition */
+#define tsd_key_create(key, destr) ((void) (key))
+#define tsd_setspecific(key, data) __libc_tsd_set (MALLOC, (data))
+#define tsd_getspecific(key, vptr) ((vptr) = __libc_tsd_get (MALLOC))
+
+#include <sysdeps/generic/malloc-machine.h>
+
+#endif /* !defined(_MALLOC_MACHINE_H) */