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Code Issues Releases Activity

The destination register of an exclusive store must be

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different from both the value and address register.  Fix building with
recent binutils by marking the result as early clobber.
This commit is contained in:
Michael Hope 2012-06-22 20:22:43 +12:00 committed by James Cotton
parent d78e4f2ca5
commit 0efb24a54b
1 changed files with 2 additions and 2 deletions
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4
flight/PiOS/STM32F10x/Libraries/CMSIS/Core/CM3/core_cm3.c
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@ -733,7 +733,7 @@ uint32_t __STREXB(uint8_t value, uint8_t *addr)
{ {
uint32_t result=0; uint32_t result=0;
__ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) ); __ASM volatile ("strexb %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
return(result); return(result);
} }
@ -750,7 +750,7 @@ uint32_t __STREXH(uint16_t value, uint16_t *addr)
{ {
uint32_t result=0; uint32_t result=0;
__ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) ); __ASM volatile ("strexh %0, %2, [%1]" : "=&r" (result) : "r" (addr), "r" (value) );
return(result); return(result);
} }