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gc_locks.h: For __ARM_EABI__ define GC_test_and_set GC_clear to use the atomic builtins.

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2009-12-09  Matthias Klose  <doko@ubuntu.com> 

        * include/private/gc_locks.h: For __ARM_EABI__ define
        GC_test_and_set  GC_clear to use the atomic builtins.

From-SVN: r155198
This commit is contained in:
Matthias Klose 2009-12-13 22:44:27 +00:00 committed by Matthias Klose
parent 38fb287358
commit 840a82bab8
2 changed files with 12 additions and 1 deletions
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5
boehm-gc/ChangeLog
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@ -1,3 +1,8 @@
2009-12-09 Matthias Klose <doko@ubuntu.com>
* include/private/gc_locks.h: For __ARM_EABI__ define
GC_test_and_set GC_clear to use the atomic builtins.
2009-12-05 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* Makefile.in: Regenerate.

8
boehm-gc/include/private/gc_locks.h
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@ -207,6 +207,12 @@
# define GC_CLEAR_DEFINED
# endif /* ALPHA */
# ifdef ARM32
# define GC_TEST_AND_SET_DEFINED
# if (__GNUC__>4)||((__GNUC__==4)&&(__GNUC_MINOR__>=5)) && defined(__ARM_EABI__)
# define GC_CLEAR_DEFINED
# define GC_test_and_set(addr) __sync_lock_test_and_set (addr, 1)
# define GC_clear(addr) __sync_lock_release (addr)
# else
inline static int GC_test_and_set(volatile unsigned int *addr) {
int oldval;
/* SWP on ARM is very similar to XCHG on x86. Doesn't lock the
@ -219,7 +225,7 @@
: "memory");
return oldval;
}
# define GC_TEST_AND_SET_DEFINED
# endif
# endif /* ARM32 */
# ifdef CRIS
inline static int GC_test_and_set(volatile unsigned int *addr) {