228     void vSystemCallEnter( uint32_t * pulTaskStack,
336         xMPUSettings->xSystemCallStackInfo.pulTaskStack = NULL;  in pxPortInitialiseStack()
479     void vSystemCallEnter( uint32_t * pulTaskStack,  in vSystemCallEnter()  argument
500         ulSystemCallLocation = pulTaskStack[ portOFFSET_TO_PC ];  in vSystemCallEnter()
517             ( pxMpuSettings->xSystemCallStackInfo.pulTaskStack == NULL ) &&  in vSystemCallEnter()
528                 pulSystemCallStack[ i ] = pulTaskStack[ i ];  in vSystemCallEnter()
544             pxMpuSettings->xSystemCallStackInfo.pulTaskStack = pulTaskStack + ulStackFrameSize;  in vSystemCallEnter()
550 …pxMpuSettings->xSystemCallStackInfo.ulLinkRegisterAtSystemCallEntry = pulTaskStack[ portOFFSET_TO_…  in vSystemCallEnter()
560 …if( ( pulTaskStack[ portOFFSET_TO_PSR ] & portPSR_STACK_PADDING_MASK ) == portPSR_STACK_PADDING_MA…  in vSystemCallEnter()
595         uint32_t * pulTaskStack;  in vSystemCallExit()  local
624             ( pxMpuSettings->xSystemCallStackInfo.pulTaskStack != NULL ) )  in vSystemCallExit()
626             pulTaskStack = pxMpuSettings->xSystemCallStackInfo.pulTaskStack;  in vSystemCallExit()
629             pulTaskStack = pulTaskStack - ulStackFrameSize;  in vSystemCallExit()
634                 pulTaskStack[ i ] = pulSystemCallStack[ i ];  in vSystemCallExit()
638             __asm volatile ( "msr psp, %0" : : "r" ( pulTaskStack ) );  in vSystemCallExit()
650 …pulTaskStack[ portOFFSET_TO_PC ] = pxMpuSettings->xSystemCallStackInfo.ulLinkRegisterAtSystemCallE…  in vSystemCallExit()
652 …pulTaskStack[ portOFFSET_TO_LR ] = pxMpuSettings->xSystemCallStackInfo.ulLinkRegisterAtSystemCallE…  in vSystemCallExit()
659                 pulTaskStack[ portOFFSET_TO_PSR ] |= portPSR_STACK_PADDING_MASK;  in vSystemCallExit()
663                 pulTaskStack[ portOFFSET_TO_PSR ] &= ( ~portPSR_STACK_PADDING_MASK );  in vSystemCallExit()
667             pxMpuSettings->xSystemCallStackInfo.pulTaskStack = NULL;  in vSystemCallExit()