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Add additional memory barriers into ARM GCC asm code to ensure no re-ordering across asm code as optimisers get more aggressive.

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This commit is contained in:
Richard Barry 2017-03-07 04:06:10 +00:00
parent c3acc441ac
commit b9fe24962e
16 changed files with 100 additions and 98 deletions
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FreeRTOS/Source/portable/GCC/ARM_CA9/portmacro.h
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@ -127,7 +127,7 @@ extern uint32_t ulPortYieldRequired; \
}
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
#define portYIELD() __asm volatile ( "SWI 0" );
#define portYIELD() __asm volatile ( "SWI 0" ::: "memory" );
/*-----------------------------------------------------------