topic Re: Information, warning or error message when a #pragma is missing? in CodeWarrior for MCU

Information, warning or error message when a #pragma is missing?

_hiper_ — Thu, 03 Oct 2013 08:38:35 GMT

Hello everyone! I am using CW V4.6 for HCS12(X)

If I want to move something (const or variable) to GLOBAL memory, I have to put pragmas covering the declaration AND the definition.

If I miss one of this pragmas, I mean, if I put pragmas in the declaration and not in the definition or vice versa, is there any INFORMATION, WARNING or ERROR message that could warn me that that element is not being properly allocated?

Thanks in advance.

Best regards,

hipercadi

Re: Information, warning or error message when a #pragma is missing?

ZhangJennie — Thu, 03 Oct 2013 16:05:23 GMT

CW should produce C4200 warning by default:

C4200: Other segment than in previous declaration

[DISABLE, INFORMATION, WARNING, ERROR]

Description

A object (variable or function) was declared with inconsistent segments.

Example

#pragma DATA_SEG A extern int i; #pragma DATA_SEG B int i;

Tips

Change the segment pragmas in a way that all declarations and the definition of one object are in the same segment. Otherwise wrong optimizations could happen.