Is there a way to generate a cross reference listing for a c/c++ program using gcc?

[Paul Albrecht]

Is there a way to generate a cross reference listing for a c/c++ program
using gcc?

Re: Is there a way to generate a cross reference listing for a c/c++ program using gcc?

[Paul Albrecht]

Eric writes:

>
> -Wl,-Map=mapfile.map,--cref
>

I'm not looking for a cross-reference from a symbol to its memory location
in linked file, rather a cross-reference from a symbol definition in a
program source file to its line number references in all the program source
files.

Re: Is there a way to generate a cross reference listing for a c/c++ program using gcc?

[Paul Albrecht]

William Beebe writes:

>
>If you want that kind of cross referencing, then you shouild look at
Doxygen (http://www.stack.nl/~dimitri/doxygen/)
>

I need the cross-reference output from the compiler because I want to write
a source code browser like LXR.  That's why I asked the question.  Again, is
there a way to generate a cross-reference listing for a c/c++ program using
gcc?  If not, the has anyone considered adding a gcc compiler option to
output cross-reference information?

Re: Is there a way to generate a cross reference listing for a c/c++ program using gcc?

[Paul Albrecht]

William Beebe writes:

>
>... If you want what LXR provides (and yes, I looked it up) then get
Doxygen
>

Not only does Doxygen not meet my requirements, but also it doesn't make
much sense to me for each cross-reference tool to implement its own source
code parser and symbol database when the symbol information could be
(optionally)
output by the compiler and subsequently processed into a database file by a
utility program. But, I guess we'll just have to agree to disagree.

>
>... why don't you write that cross-reference output feature?
>

Is anyone else planning on or interested in adding a symbol cross-reference
option to gcc for the "C" programming language? Are there any objections to
adding a symbol cross-reference option to gcc for the "C" programming
language?

gcc cross-reference

[Paul Albrecht]

A while back I asked whether gcc provided a cross-reference utility and the 
answer was "NO" so I
prototyped my own cross-referencing program using gcc and tcl/tk. I'd like to 
get some feedback--for
example, usability of the program relative to other cross-referencing 
programs--so I have
cross-referenced linux and gcc sources and made the program and databases 
available for download
from my web site www.pjalbrecht.com.

Paul Albrecht

question about gcc

[Paul Albrecht]

Is there some reason gcc hasn't been or can't be enhanced to provide output for 
a cross-referencing
programs?

Paul Albrecht

Re: question about gcc

[Paul Albrecht]

From: "Robert Dewar" <[EMAIL PROTECTED]>

> Paul Albrecht wrote:
> > Is there some reason gcc hasn't been or can't be enhanced to provide output 
> > for a
> > cross-referencing programs?
> >
>
> No reason why it can't be, and the reason it hasn't is that no one has done 
> it. Actually strictly
you don't mean gcc
> here, you are referring to particular front ends, since the notion of 
> referencing is somewhat
language dependent.
> So probably you are thinking of C and/or C++. Note that GNAT, the Ada front 
> end, does indeed
output full
> information for xref purposes, in the form of alibfiles (it would indeed be 
> nice if the C++
compiler
> would generate something similar!)
>
>

I took a swipe at the c front end and have cross-referenced linux and gcc using 
my hacked gcc. I'd
like to get some feedback from the gcc community. You can check out my results 
at my web site
www.pjalbrecht.com.

Paul Albrecht

Re: question about gcc

[Paul Albrecht]

From: "Jim Wilson" <[EMAIL PROTECTED]>

> Paul Albrecht wrote:
> > Is there some reason gcc hasn't been or can't be enhanced to provide output 
> > for
> > cross-referencing programs?
>
> FYI, there are a number of tools available for producing
> cross-referencing info.  See for instance
>  http://www.gnu.org/software/global/links.html
> and try looking at the up-link to global itself also.  I found this by
> searching on the GNU web site.  I've never used global myself.
>

I'm not really so much interested in particular cross-referencing programs as I 
am interested in
whether the gcc community has considered providing compiler output to 
cross-referencing programs via
a front end option.

Paul Albrecht