General search for symbols...

[Stephen Biggs]

On Wed, 2003-04-02 at 13:34, Hans-Peter Nilsson wrote:
> On 2 Apr 2003, Stephen Biggs wrote:
> > I am trying to port GCC to another machine.
> >
> > Given that I have a file <new gcc
> > path>/gcc/config/<machine>/<machine>.c, how would I, within any of the
> > functions in that file find out if a certain symbol has been defined by
> > a "#define" statement in the C source that is being compiled?
> 
> That's an odd need for a new port.  Care to elaborate; example?
> (It might turn out to be a misunderstanding or a need covered
> by an existing mechanism, that's mainly why I ask.)

Thanks for the reply.

E.g., I need to do something different in the assembly output based on
whether varargs.h or stdarg.h was included in the C source file. I
thought to check to see if either "_VARARGS_H" or "_STDARG_H" was
defined.  I am also going to need this for other things.

> 
> brgds, H-P
> 
>