testing GCC

[Jane chen]

Thank you so much for your reply. They are pretty
useful. There are no ALL_FLAGS in the Makefile I'm
working on and I tried to put the coverage option in
different places. For example, I put it into
BASE_FLAGS_TO_PASS (in the comments, it said those are
"flags to pass down to all sub_makes"). However, there
are totally 106 *.bb files generated. And there are
totally 139 *.c files existed.
My question is: Is that true that each .c file will
have a corresponding .bb file if I put the coverage
option in right place?

Jane
--- Jim Wilson <wilson@specifixinc.com> wrote:
> On Tue, 2004-02-24 at 19:55, Jane chen wrote:
> > By now, I did not run the testsuite yet. But I've
> got
> > 48.77% covered for genrtl.c. 
> 
> The "make bootstrap" command causes gcc to be built
> 3 times.  The first
> time it is built by the compiler in the path.  The
> second and third
> times it builds itself.  This allows us to perform a
> consistency check
> to make sure the compiler is working before it is
> installed.
> 
> Since the instrumented compiler is building itself,
> it will generate
> profile data when this happens.
> 
> Also, the "make bootstrap" command causes various
> libraries to be built,
> and profile data will be generated when the
> libraries are built.
> 
> If you want to ignore this profile data, you can
> delete the .da (.gcda)
> files before running the testsuite.
> 
> > I modified the Makefile because only by adding
> > --enable-coverage no .bb file generated. Therefore
> > gcov cannot be used. 
> 
> This is because gcc-2.95 is old, and does not
> support the
> --enable-coverage configure option.  This configure
> option just gets
> silently ignored.  You need gcc-3.3 or later for
> this to work.  Hence
> for gcc-2.95 you have to modify the Makefile.
> 
> Setting CC is probably wrong.  This only gets used
> for the first
> compiler build.  It will not be used for the second
> or third compiler
> builds.  I think you want to put the options in
> ALL_CFLAGS instead,
> which is what gcc-3.3 does.
> -- 
> Jim Wilson, GNU Tools Support,
> http://www.SpecifixInc.com
> 


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