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From: Jan Beich <jbeich@FreeBSD.org>
To: Guido Falsi <mad@madpilot.net>
Cc: Piotr Kubaj <pkubaj@anongoth.pl>, freebsd-ports@freebsd.org
Subject: Re: Debugging ports
References: <20171017160445.GA31080@smtp.iq.pl>
 <b612c6d0-41f1-4b6a-b424-033fa567d8bf@madpilot.net>
 <fa8be1ce-2408-3e5b-619a-d95accc8631e@madpilot.net>
Date: Tue, 17 Oct 2017 23:29:47 +0200
In-Reply-To: <fa8be1ce-2408-3e5b-619a-d95accc8631e@madpilot.net> (Guido
 Falsi's message of "Tue, 17 Oct 2017 23:16:46 +0200")
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Guido Falsi <mad@madpilot.net> writes:

> On 10/17/2017 23:11, Guido Falsi wrote:
>
>>>
>>> Thing is, recompiling with WITH_DEBUG doesn't help (I only get
>>> memory addresses in gdb), nor does -DCMAKE_BUILD_TYPE=Debug to
>>> CMAKE_ARGS (the port uses CMake).
>
> Sorry, I clearly did not parse your message correctly.
>
> Looks strange though, WITH_DEBUG always worked for me... Usually I
> compile the whole set in poudriere with WITH_DEBUG, to make sure all
> libraries have symbols too.

WITH_DEBUG doesn't disable vendor optimizations like -fomit-frame-pointer
which may hinder stack unwinding, doesn't enable debug symbols for ports
not respecting CFLAGS, often a nop for non-C/C++ ports, etc.

Without an example it's hard to guess.