In libobjc/:

       Implemented objc_sync_enter() and objc_sync_exit(), which are
       required by @synchronized() to work.
       * objc-sync.c: New file.
       * objc/objc-sync.h: New file.
       * objc-private/objc-sync.h: New file.
       * init.c (__objc_exec_class): Call __objc_sync_init() during the
       Objective-C runtime startup.
       * Makefile.in: Added objc-sync.c and objc-sync.h.
       * configure.ac: Added GCC_CHECK_TLS.
       * acinclude.m4: Include ../config/enable.m4 and ../config/tls.m4.
       * configure: Regenerated.
       * config.h.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@164276 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 41 insertions, 0 deletions

diff --git a/libobjc/objc-private/objc-sync.h b/libobjc/objc-private/objc-sync.h
new file mode 100644
index 00000000000..e69d756d3ad
--- /dev/null
+++ b/libobjc/objc-private/objc-sync.h
@@ -0,0 +1,41 @@
+/* GNU Objective C Runtime @synchronized implementation - Private functions
+   Copyright (C) 2010 Free Software Foundation, Inc.
+   Contributed by Nicola Pero <nicola.pero@meta-innovation.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3, or (at your option) any later version.
+
+GCC 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 General Public License for more
+details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef __objc_private_objc_sync_INCLUDE_GNU
+#define __objc_private_objc_sync_INCLUDE_GNU
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/* This function needs to be called at startup before @synchronized()
+   can be used.  */
+void
+__objc_sync_init (void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* not __objc_private_objc_sync_INCLUDE_GNU */