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re PR target/28307 (pthread functions in libgcc not weak any more on Tru64 UNIX)

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PR target/28307
	* gthr-posix.h [SUPPORTS_WEAK && GTHREAD_USE_WEAK]
	(__gthrw_pragma): Provide default definition.
	(__gthrw2): Use it.
	* gthr-posix.c (__gthrw_pragma): Define.

From-SVN: r126253
This commit is contained in:
Rainer Orth 2007-07-03 13:41:00 +00:00 committed by Rainer Orth
parent 78d3c323b9
commit b36e79e550
3 changed files with 17 additions and 4 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2007-07-03 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
PR target/28307
* gthr-posix.h [SUPPORTS_WEAK && GTHREAD_USE_WEAK]
(__gthrw_pragma): Provide default definition.
(__gthrw2): Use it.
* gthr-posix.c (__gthrw_pragma): Define.
2007-07-03 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-sccvn.c (set_ssa_val_to): Check for operand_equal_p

5
gcc/gthr-posix.c
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@ -1,6 +1,6 @@
/* POSIX threads dummy routines for systems without weak definitions. */
/* Compile this one with gcc. */
/* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
/* Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
This file is part of GCC.
@ -28,6 +28,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
#include "tconfig.h"
#include "tm.h"
# define __gthrw_pragma(pragma) _Pragma (#pragma)
/* Define so we provide weak definitions of functions used by libobjc only. */
#define _LIBOBJC_WEAK
#include "gthr.h"
@ -75,7 +76,7 @@ pthread_create (pthread_t *thread ATTRIBUTE_UNUSED,
}
int
pthread_cancel(pthread_t thread ATTRIBUTE_UNUSED)
pthread_cancel (pthread_t thread ATTRIBUTE_UNUSED)
{
return 0;
}

8
gcc/gthr-posix.h
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@ -1,6 +1,6 @@
/* Threads compatibility routines for libgcc2 and libobjc. */
/* Compile this one with gcc. */
/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
/* Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of GCC.
@ -59,8 +59,12 @@ typedef pthread_mutex_t __gthread_recursive_mutex_t;
#endif
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
# ifndef __gthrw_pragma
# define __gthrw_pragma(pragma)
# endif
# define __gthrw2(name,name2,type) \
static __typeof(type) name __attribute__ ((__weakref__(#name2)));
static __typeof(type) name __attribute__ ((__weakref__(#name2))); \
__gthrw_pragma(weak type)
# define __gthrw_(name) __gthrw_ ## name
#else
# define __gthrw2(name,name2,type)