Re: what does preprocessor test "__ASSEMBLY__" mean?

["Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx>]

On Mon, 4 Jun 2007, Octavian Purdila wrote:

> On Monday 04 June 2007 11:26, Robert P. J. Day wrote:
> >   i can sort of see what it represents, but what's the exact meaning
> > of checking for that preprocessor symbol?  thanks.
> >
>
> Some of the headers are included in assembler source.  __ASSEMBLY__
> keeps out C constructs when "compiling" assembler sources.
>
> For example, ./arch/i386/relocate_kernel.S is including
> <asm-i386/page.h>, which has all kinds of C constructs like
> typedefs, functions declarations, etc. that do not make sense in
> assembly. Nethertheless, there are some usefull macro-definitions
> like PAGE_SHIT, PAGE_SIZE, etc. which we want to use even in
> assembly.

i suspected as much, i just wanted to make sure, thanks.

rday
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Robert P. J. Day
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