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From: =?UTF-8?B?QmrDtnJu?= Persson <bjorn@xn--rombobjrn-67a.se>
Newsgroups: comp.lang.ada
Subject: Re: About static libraries and Debian policy
Followup-To: comp.lang.ada
Date: Wed, 19 May 2010 23:59 +0200
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Date: 2010-05-19T23:59:00+02:00
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Ludovic Brenta wrote:

> Traceback is always available, either in symbolic or numeric form.  To
> get the symbolic form, you need the -dbg package installed.

Is that libgnat-4.3-dbg that needs to be installed (on Etch)?

I can't get symbolic traceback to work; I get Storage_Error instead. Below 
is my test program and how I compile and run it. Do you have any idea of 
what's wrong?

with Ada.Text_IO;
with GNAT.Traceback.Symbolic;

procedure Stack_Trace_Test is

   Oopsie : Exception;

   procedure Eledile is
   begin
      raise Oopsie with "How unfortunate!";
   end Eledile;

   procedure Crocophant is
   begin
      Eledile;
   end Crocophant;

begin
   Crocophant;
exception
   when E : others =>
      Ada.Text_IO.Put_Line(GNAT.Traceback.Symbolic.Symbolic_Traceback(E));
end Stack_Trace_Test;

$ gnatmake stack_trace_test.adb -g -bargs -E
gcc-4.3 -c -g stack_trace_test.adb
gnatbind -E -x stack_trace_test.ali
gnatlink stack_trace_test.ali -g
$ ./stack_trace_test 

Execution terminated by unhandled exception
Exception name: STORAGE_ERROR
Message: stack overflow (or erroneous memory access)
Call stack traceback locations:
0xb7e7c56b
$ addr2line --functions --exe=stack_trace_test 0xb7e7c56b
??
??:0

-- 
Björn Persson
PGP key A88682FD