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Date: Mon, 26 Apr 2004 19:46:00 -0000
From: Kevin Buettner <kevinb@redhat.com>
To: gdb@sources.redhat.com
Subject: Re: #1 0x1234456765432189 in <signal handler>
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On Fri, 23 Apr 2004 11:00:03 -0400
Andrew Cagney <cagney@gnu.org> wrote:

> At present a signal handler, in a backtrace is displayed as:
> 
> #0  catcher (signal=26) at 
> /home/cygnus/cagney/GDB/src/gdb/testsuite/gdb.base/sigaltstack.c:71
> #1  <signal handler called>
> #2  0x0000000000400751 in thrower (next_level=INNER, sig=26, itimer=1, 
> on_stack=134217728) at /home/cygnus/cagney/GD
> 
> It isn't exactly informative.  Since we're now expecting GDB to do 
> something sane with a signal handlers, I think how it is displayed 
> should be changed.  In particular the output should be changed to:
> 
> #1  0xffff01111111 in <signal handler>
> 
> thoughts?

I have no objection to printing an address, but I don't think
that referring to the thing in frame #1 as "<signal handler>"
is correct.  The signal handler in this case is actually catcher().
Frame #1 is created by the OS to hold the process's state prior to
receiving the signal in question.  That being the case, I'd like to
see either:

#1  0xffff01111111 in <signal handler caller>

or:

#1  0xffff01111111 in <signal context frame>

Kevin