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In libobjc/: Implemented objc_sync_enter() and objc_sync_exit(), which are required by @synchronized() to work.

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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.

From-SVN: r164276
This commit is contained in:
Nicola Pero 2010-09-14 10:23:37 +00:00 • committed by Nicola Pero
parent 4359dc2a31
commit fd3125375f
10 changed files with 846 additions and 4 deletions
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41
libobjc/objc-private/objc-sync.h Normal file
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/* 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 */