topic Re: A compile problem in S12 / MagniV Microcontrollers

A compile problem

user_112139582 — Sun, 26 May 2013 01:47:08 GMT

Please help me.

When I compile my code,a warning will come. The warning is "SP debug info incorrect because of optimization or inline assembler". How can I deal with it.

Re: A compile problem

TICS_Fiona — Mon, 27 May 2013 02:19:04 GMT

regarding this warning, here is the explanation given by the manual:

C12056: SP debug info incorrect because of optimization or inline assembler Description The compiler investigates the generated code to detect the current SP value for every instruction.

During this process, he detects that two different control flows generate different SP values for a single instruction.

This situation may arise because of different situations: – inline assembler: In inline assembler code, it is legal to have this situation as long as the stack is correct at the end of the inline assembler block.

– optimization: Especially because of the common code optimization -Of/-Onf there are situations where this occurs in correct code.

It is impossible to generate correct debug info for this optimization in some cases.

The debugger may show local variables and the call chain incorrect for some parts in a function, for which this message occurs.

But this message does not mean that the code generated is wrong in any sense.

Previous versions of the compiler did generate this warning in other situations, for which this version generates correct debug info.

Re: A compile problem

Monica — Thu, 13 Jun 2013 20:42:07 GMT

Hello!

Were these hints helpful? Please don't forget to keep us posted! :smileywink:

Best regards,

Monica.

Re: A compile problem

ZhangJennie — Mon, 17 Jun 2013 10:00:11 GMT

hello, if you can't solve your problem by the suggestion, please post your project here. or create a SR and send the project to Freescale support. thus we can check it directly.