Re: How to debug?

From: "David C. Hoos" <david.c.hoos.sr@ada95.com>
To: <amado.alves@netcabo.pt>,
	"comp.lang.ada@ada.eu.org" <comp.lang.ada@ada-france.org>
Subject: Re: How to debug?
Date: Wed, 5 May 2004 13:27:12 -0500
Date: 2004-05-05T13:27:12-05:00	[thread overview]
Message-ID: <mailman.77.1083781652.313.comp.lang.ada@ada-france.org> (raw)
In-Reply-To: 200405051830.03021.maa@liacc.up.pt

The Gnat 3.15 User's Guide says under Binder Switches, the following:

Store tracebacks in exception occurrences when the target supports it. This
is the default with the zero cost exception mechanism. This option is
currently supported on the following targets: all x86 ports, Solaris,
Windows, HP-UX, AIX, PowerPC VxWorks and Alpha VxWorks. See also the
packages GNAT.Traceback and GNAT.Traceback.Symbolic for more information.
Note that on x86 ports, you must not use -fomit-frame-pointer gcc option.

I have not tried this on Windows, as almost all of my work is on Unix/Linux
platforms. Putting an exception handler at the end of the main procedure
and at the end of all tasks works very well for me.  These exception
handlers use the SymbolicTraceback facilities.

----- Original Message ----- 
From: "Marius Amado Alves" <maa@liacc.up.pt>
To: <comp.lang.ada@ada-france.org>
Sent: Wednesday, May 05, 2004 12:30 PM
Subject: How to debug?

How do I inspect the call stack (preferably symbolic information i.e. source
code unit name + line number + subprogram names), upon an unhandled
exception
occurrence?

I'm on Windows XP, with GNAT 3.15p. I tried GVD and gdb to no avail (yes,
compiled with the -g option). Would it work on Linux?

Do I have to catch the exception, perhaps just to put a breakpoint in the
handler?

Sometime ago, I think with GNAT 3.13p or 3.14p, I also tried instrumenting
my
code with GNAT's Symbolic_Traceback but it also didn't work. Would it work
now with version 3.15p?

Would GPS do the trick?

Thanks a lot.

/* So far I seem to have been able to produce working Ada programs without a
debugger. I instrument. But now I'm tired. And it's rather irritating that
Ada, GNAT, the 'p' versions, does not facilitate debugging like e.g. the
Borland products did. I miss that aspect of them. I whish there was a Turbo
Ada. */

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