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Use local labels in PowerPC assembler code of GSAtomic{In,De}crement

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to avoid a compile error when this code is inlined more than once. In
addition, use the optimized assembler definitions also on PowerPC
machines running Darwin/Mac OS X.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@30239 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
wlux 2010-04-26 21:32:22 +00:00
parent b1570e8a1c
commit a9a949c4ef
2 changed files with 13 additions and 5 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2010-04-26 Wolfgang Lux <wolfgang.lux@gmail.com>
* Source/NSObject.m (GSAtomicIncrement, GSAtomicDecrement): Use
local labels in PowerPC assembler code to avoid a compile error
when this code is inlined more than once. In addition, use the
optimized assembler definitions also on PowerPC machines running
Darwin/Mac OS X.
2010-04-23 Richard Frith-Macdonald <rfm@gnu.org> 2010-04-23 Richard Frith-Macdonald <rfm@gnu.org>
* Source/Additions/NSFileHandle+GNUstepBase.m: fix to only build on OSX * Source/Additions/NSFileHandle+GNUstepBase.m: fix to only build on OSX

10
Source/NSObject.m
View file

@ -244,7 +244,7 @@ GSAtomicDecrement(gsatomic_t X)
return *X; return *X;
} }
#elif defined(__PPC__) #elif defined(__PPC__) || defined(__POWERPC__)
typedef int32_t volatile *gsatomic_t; typedef int32_t volatile *gsatomic_t;
@ -255,11 +255,11 @@ GSAtomicIncrement(gsatomic_t X)
{ {
int tmp; int tmp;
__asm__ __volatile__ ( __asm__ __volatile__ (
"incmodified:" "0:"
"lwarx %0,0,%1 \n" "lwarx %0,0,%1 \n"
"addic %0,%0,1 \n" "addic %0,%0,1 \n"
"stwcx. %0,0,%1 \n" "stwcx. %0,0,%1 \n"
"bne- incmodified \n" "bne- 0b \n"
:"=&r" (tmp) :"=&r" (tmp)
:"r" (X) :"r" (X)
:"cc", "memory"); :"cc", "memory");
@ -271,11 +271,11 @@ GSAtomicDecrement(gsatomic_t X)
{ {
int tmp; int tmp;
__asm__ __volatile__ ( __asm__ __volatile__ (
"decmodified:" "0:"
"lwarx %0,0,%1 \n" "lwarx %0,0,%1 \n"
"addic %0,%0,-1 \n" "addic %0,%0,-1 \n"
"stwcx. %0,0,%1 \n" "stwcx. %0,0,%1 \n"
"bne- decmodified \n" "bne- 0b \n"
:"=&r" (tmp) :"=&r" (tmp)
:"r" (X) :"r" (X)
:"cc", "memory"); :"cc", "memory");