Consistency of function attributes between prototype and definition

Florian Weimer
Mon Oct 5 09:20:00 GMT 2015

On 10/02/2015 09:37 PM, Segher Boessenkool wrote:
> On Fri, Oct 02, 2015 at 01:25:31PM +0200, Florian Weimer wrote:
>> glibc has a preprocessor macro called internal_function which switches
>> to a different calling convention on certain targets (i386 uses stdcall
>> and regparams).  For non-K&R function definitions, the compiler enforces
>> that both the prototype declaration and the definition match.
>> When someone writes a patch on a different architecture than i386 and
>> forgets to specify internal_function on both prototype and definition,
>> the build will pass, even though i386 will not compile.
>> Is there a way to use a certain harmless attribute to detect this
>> mismatch even on architectures where internal_function has no effect?
> Maybe aligned(1) will do what you want?

Interesting idea.  Would this alter generated code?


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