Re: RFA: Recognize bottom of stack on Linux

[Michael Snyder <msnyder at redhat dot com>]

Daniel Jacobowitz wrote:
> 
> On Sun, Feb 03, 2002 at 09:06:36PM -0500, Jim Blandy wrote:
> >
> > Now, some folks feel that GDB should show the whole stack, including
> > _start, __libc_start_main, and anything else that's there.  However,
> > this isn't the way GDB has ever traditionally behaved on native
> > targets.  So this patch makes GDB's backtraces end after main.
> >
> > 2002-02-03  Jim Blandy  <jimb@redhat.com>
> >
> >       * i386-linux-tdep.c (i386_linux_frame_chain): Stop the frame chain
> >       after `main', not just after the compilation unit containing the
> >       entry point.
> 
> Shouldn't we use func_frame_chain_valid instead of
> file_frame_chain_valid instead of duplicating this?
> 
> I don't understand why that function doesn't have more callers.  It
> seems that at least all non-embedded targets, or at the very least all
> Linux targets, should use it.

It doesn't always work as advertised...