Re: Fwd: how to determine location of source?

[Joel Brobecker <brobecker@adacore.com>]

> Hmm... info sources and maintenance print psymbols PSYMS gives me
> relative, not absolute paths. Maybe that's all that's encoded into my
> binaries

Yes and no. I will assume that you are building on a target that
runs ELF binaries and that your debugging info is DWARF, but the
principles are the same regardless.

Usually, what the compiler provides a debugging information is
one attribute that tells you the name of the directory from which
the compilation was done. Check out the DW_AT_comp_dir attribute,
and then one attribute that gives you the name of the source file
as it was given to GCC.

   /my/sources% gcc -c -g subdir/foo.c

Will result in:
   DW_AT_comp_dir = /my/sources
   DW_AT_name = subdir/foo.c

This is of course not standardized, so any combination of comp_dir/name
can happen, but this is what GCC does as far as I know. The DWARF
dumper will give you that info.

-- 
Joel