Processor expert bug??

claybarclay — Mon, 10 Mar 2014 20:16:00 GMT

Hello,

I am using the PE FLASH_LDD for Kinetis in CW 10.5 and it throws a compiler warning when I turn on optimization.

IntFlashLdd1.c:550:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]

Here is the function that gets this warning:

static void SafeRoutineCaller(void) 
{ 
LDD_FLASH_TSafeRoutine SaveRoutineStackSpace; LDD_FLASH_TSafeRoutinePtr SafeRoutinePtr;  /* The safe routine must be aligned to 16bit word */ 
SafeRoutinePtr = (LDD_FLASH_TSafeRoutinePtr)(((uint32_t)&SaveRoutineStackSpace + 1U) & ~(uint32_t)1U); /* Copy the safe routine's code to a buffer on the stack */ 
*(LDD_FLASH_TSafeRoutine *)(void *)SafeRoutinePtr = *(LDD_FLASH_TSafeRoutine *)(void *)&SafeRoutine; /* {Default RTOS Adapter} Critical section begin, general PE function is used */ 
EnterCritical(); ((LDD_FLASH_TSafeRoutinePtr)((uint32_t)(SafeRoutinePtr) | 1U))(); /* Run the Safe routine */ /* {Default RTOS Adapter} Critical section end, general PE function is used */ 
ExitCritical(); 
}

I would assume since this is automatically generated that I found a PE bug. Can anyone help me?

thanks

clay

Re: Processor expert bug??

ZhangJennie — Wed, 12 Mar 2014 01:22:43 GMT

can you please upload your demo project and detail how to reproduce the problem with it? thanks!

topic Processor expert bug?? in CodeWarrior Development Tools

Processor expert bug??

Re: Processor expert bug??