I've created the new patch. Here is example of usage patched gdb:

(gdb) backtrace
#0  main () at /home/eldar/testdir/test.c:4

(gdb) set backtrace filename-display basename
(gdb) backtrace
#0  main () at test.c:4

(gdb) set backtrace filename-display without-compile-dir
(gdb) backtrace
#0  main () at testdir/test.c:4

(gdb) set backtrace filename-display full
(gdb) backtrace
#0  main () at /home/eldar/testdir/test.c:4

I can change something if you want. If this implementation is good I
will prepare ChangeLog and testsuite.

On Thu, Jul 28, 2011 at 7:17 PM, Tom Tromey <tromey@redhat.com> wrote:
> I forget (I never keep records of this, I think perhaps I should) -- did
> we get you started on the copyright assignment paperwork?

Not yet, because my previous patches is very different. I mean the
different files was changed and I don't know which files I need to
change in the next patch.
I hope some people here can accept implementation in this last patch.
After I can start the copyright assignment.

> iam> +static int backtrace_skip_compile;
> iam> +static void
>
> Newline between these two lines.

I'm not sure that's right because I see that there's no newline in
this case (if you look at other places related 'set backtrace ...').

> iam> +char *
> iam> +get_display_filename_from_sal (struct symtab_and_line *sal)
>
> Should have an introductory comment before this function.

Comment was added in 'frame.h'

> Ah, ok -- you are using the absolute file name when compiling.
> That seems weird to me, but I understand now.

Some big build systems uses absolute file name (e.g. Mozilla) because
I started this topic. I wrote about motivation idea in my first
message with patch.

With best regards,
Eldar.