egcs projects compiler system

Exact copy of the snapshot, except for the removal of
	texinfo/
	gcc/ch/
	libchill/

1 files changed, 112 insertions, 0 deletions

diff --git a/gnu/egcs/libio/config/linuxaxp1-libc-lock.h b/gnu/egcs/libio/config/linuxaxp1-libc-lock.h
new file mode 100644
index 00000000000..2523a0d5157
--- /dev/null
+++ b/gnu/egcs/libio/config/linuxaxp1-libc-lock.h
@@ -0,0 +1,112 @@
+/* libc-internal interface for mutex locks.  LinuxThreads version.
+   Copyright (C) 1996 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.  */
+
+#ifndef _LIBC_LOCK_H
+#define _LIBC_LOCK_H 1
+
+#include <pthread.h>
+#define __libc_lock_t pthread_mutex_t
+
+/* Define a lock variable NAME with storage class CLASS.  The lock must be
+   initialized with __libc_lock_init before it can be used (or define it
+   with __libc_lock_define_initialized, below).  Use `extern' for CLASS to
+   declare a lock defined in another module.  In public structure
+   definitions you must use a pointer to the lock structure (i.e., NAME
+   begins with a `*'), because its storage size will not be known outside
+   of libc.  */
+#define __libc_lock_define(CLASS,NAME) \
+  CLASS __libc_lock_t NAME;
+
+/* Define an initialized lock variable NAME with storage class CLASS.  */
+#define __libc_lock_define_initialized(CLASS,NAME) \
+  CLASS __libc_lock_t NAME = PTHREAD_MUTEX_INITIALIZER;
+
+/* Initialize the named lock variable, leaving it in a consistent, unlocked
+   state.  */
+#define __libc_lock_init(NAME) \
+  (__pthread_mutex_init != NULL ? __pthread_mutex_init (&(NAME), NULL) : 0);
+
+/* Same as last but this time we initialize a recursive mutex.  */
+#define __libc_lock_init_recursive(NAME) \
+  do {                                                                      \
+    if (__pthread_mutex_init != NULL)                                       \
+      {                                                                     \
+      pthread_mutexattr_t __attr;                                           \
+      __pthread_mutexattr_init (&__attr);                                   \
+      __pthread_mutexattr_setkind_np (&__attr, PTHREAD_MUTEX_RECURSIVE_NP); \
+      __pthread_mutex_init (&(NAME), &__attr);                              \
+      __pthread_mutexattr_destroy (&__attr);                                \
+      }                                                                             \
+  } while (0);
+
+/* Finalize the named lock variable, which must be locked.  It cannot be
+   used again until __libc_lock_init is called again on it.  This must be
+   called on a lock variable before the containing storage is reused.  */
+#define __libc_lock_fini(NAME) \
+  (__pthread_mutex_destroy != NULL ? __pthread_mutex_destroy (&(NAME)) : 0);
+
+/* Lock the named lock variable.  */
+#define __libc_lock_lock(NAME) \
+  (__pthread_mutex_lock != NULL ? __pthread_mutex_lock (&(NAME)) : 0);
+
+/* Try to lock the named lock variable.  */
+#define __libc_lock_trylock(NAME) \
+  (__pthread_mutex_trylock != NULL ? __pthread_mutex_trylock (&(NAME)) : 0);
+
+/* Unlock the named lock variable.  */
+#define __libc_lock_unlock(NAME) \
+  (__pthread_mutex_unlock != NULL ? __pthread_mutex_unlock (&(NAME)) : 0);
+
+/* Start critical region with cleanup.  */
+#define __libc_cleanup_region_start(FCT, ARG) \
+  { struct _pthread_cleanup_buffer _buffer;                                 \
+    if (_pthread_cleanup_push_defer != NULL) {                              \
+      _pthread_cleanup_push_defer (&_buffer, (FCT), (ARG));                 \
+    }
+
+/* End critical region with cleanup.  */
+#define __libc_cleanup_region_end(DOIT) \
+    if (_pthread_cleanup_push_defer != NULL) {                              \
+      _pthread_cleanup_pop_restore (&_buffer, (DOIT));                      \
+    }                                                                       \
+  }
+
+/* Make the pthread functions weak so that we can elide them from
+   single-threaded processes.  */
+#pragma weak __pthread_mutex_init
+#pragma weak __pthread_mutex_destroy
+#pragma weak __pthread_mutex_lock
+#pragma weak __pthread_mutex_trylock
+#pragma weak __pthread_mutex_unlock
+#pragma weak __pthread_mutexattr_init
+#pragma weak __pthread_mutexattr_destroy
+#pragma weak __pthread_mutexattr_setkind_np
+#pragma weak __pthread_key_create
+#pragma weak __pthread_setspecific
+#pragma weak __pthread_getspecific
+#pragma weak __pthread_initialize
+#pragma weak _pthread_cleanup_push_defer
+#pragma weak _pthread_cleanup_pop_restore
+
+/* We need portable names for some functions.  E.g., when they are
+   used as argument to __libc_cleanup_region_start.  */
+#define __libc_mutex_unlock __pthread_mutex_unlock
+
+#endif        /* libc-lock.h */
+