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partial revert

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@33115 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2011-05-25 15:53:17 +00:00
parent 8a5f6fd2d5
commit eb39994378
2 changed files with 38 additions and 10 deletions
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22
ChangeLog
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@ -1,3 +1,9 @@
2011-05-25 Richard Frith-Macdonald <rfm@gnu.org>
* Source/NSObject.m:
Make last assembler attempt conditional ... I'm far from sure it's
correct.
2011-05-25 11:15 David Chisnall <theraven@gna.org>
* Headers/Foundation/NSZone.h,
@ -7,14 +13,14 @@
* Source/NSNotificationCenter.m,
* Source/NSObject.m,
* Source/NSZone.m:
More tweaks for garbage collection mode, including making
NSNotificationCenter use weak pointers (things are never removed if it
uses strong pointers because they remove themselves in the -dealloc
method, which is never called, and can't remove themselves in the
-finalize method because the -finalize method would not be called until
after they have been removed - this is consistent with Apple behaviour).
Gorm now works correctly when built with GC enabled.
More tweaks for garbage collection mode, including making
NSNotificationCenter use weak pointers (things are never removed if it
uses strong pointers because they remove themselves in the -dealloc
method, which is never called, and can't remove themselves in the
-finalize method because the -finalize method would not be called
until after they have been removed - this is consistent with Apple
behaviour).
Gorm now works correctly when built with GC enabled.
2011-05-25 Richard Frith-Macdonald <rfm@gnu.org>

26
Source/NSObject.m
View file

@ -226,7 +226,8 @@ typedef int32_t volatile *gsatomic_t;
#define GSATOMICREAD(X) (*(X))
int
#ifdef ATOMICTEST
static __inline__ int
GSAtomicIncrement(gsatomic_t X)
{
int32_t tmp = 1;
@ -238,7 +239,7 @@ GSAtomicIncrement(gsatomic_t X)
return tmp;
}
int
static __inline__ int
GSAtomicDecrement(gsatomic_t X)
{
int32_t tmp = -1;
@ -249,6 +250,27 @@ GSAtomicDecrement(gsatomic_t X)
:"memory" );
return tmp;
}
#else
static __inline__ int
GSAtomicIncrement(gsatomic_t X)
{
__asm__ __volatile__ (
"lock addl $1, %0"
:"=m" (*X));
return *X;
}
static __inline__ int
GSAtomicDecrement(gsatomic_t X)
{
__asm__ __volatile__ (
"lock subl $1, %0"
:"=m" (*X));
return *X;
}
#endif
#elif defined(__PPC__) || defined(__POWERPC__)