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return: Fix PowerPC assembly #113

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return: Fix PowerPC assembly #113

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13 changes: 3 additions & 10 deletions return.h
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Original file line number Diff line number Diff line change
Expand Up @@ -260,20 +260,13 @@ asm void ASM_GET_RET_ADDR(file)
/*************************************/

/*
* For Powerpc 603 based system running LynxOS 2.3.1 using gcc/gas.
*/
#if defined(__powerpc__) && defined(__GNUC__) && !defined(__OPTIMIZE__)

/*
* This won't compile if "-O2" is used, but it seems to work fine with
* "-O0". I'm no assembler expert; I was happy enough to come up with
* something that works at all... :-)
* For PowerPC using gcc/gas.
*/
#if defined(__powerpc__) && defined(__GNUC__)

#define GET_RET_ADDR(file) \
do { \
asm("mflr 0"); \
asm("stw 0,%0" : "=g" (file)); \
asm("mflr %0" : "=r" (file)); \
} while(0)

#endif /* __powerpc__ && __GNUC__ && !__OPTIMIZE__ */
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