GCC Front End: Finding the location of a Symbol Definition

Hello,


I am working on a research project that has led me to a problem in the
GCC front-end.


My Problem:


I am using the Pro64 compiler, and it uses the GCC frontend for C/C++. I
am doing some work that requires the source-to-whirl-to-source
translation. The problem I am currently experiencing is that the
resulting source code will regenerate the type definition for a
composite type i.e. a struct or union that is actually defined in a
library header file. So, when the new code is compiled I get a
redefinition error.


Example:


#include <sys/stat.h>
...


struct stat mbuf;
....


is translated into:


struct stat {
...
...
} mbuf;


And so now the #include and this definition conflict. This happens
because during the retranslation the module encounters stat for the
first time in the declaration of mbuf and then creates a declaration for
it.


My Idea:


If the GCC frontend determines that struct stat is defined in another
location either a library or another file, then I want to preserve this
information to have the BE translator use it to determine whether or not
to create a definition of this type.


Does anyone have any idea of how / where I can get this kind of
information?


Thanks,


Charles




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Charles R. Hardnett CREST at Ga Tech www.crest.gatech.edu

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