From owner-freebsd-questions@freebsd.org Tue Nov 15 18:51:51 2016 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AC1C7C4310D for ; Tue, 15 Nov 2016 18:51:51 +0000 (UTC) (envelope-from freebsd@dreamchaser.org) Received: from nightmare.dreamchaser.org (ns.dreamchaser.org [66.109.141.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 537441ABF for ; Tue, 15 Nov 2016 18:51:50 +0000 (UTC) (envelope-from freebsd@dreamchaser.org) Received: from breakaway.dreamchaser.org (breakaway.dreamchaser.org. [192.168.151.122]) by nightmare.dreamchaser.org (8.13.6/8.13.6) with ESMTP id uAFIpcNa009899 for ; Tue, 15 Nov 2016 11:51:39 -0700 (MST) (envelope-from freebsd@dreamchaser.org) Subject: Re: gdb / dwarf issue Reply-To: freebsd@dreamchaser.org, freebsd@dreamchaser.org References: To: FreeBSD Mailing List From: Gary Aitken Message-ID: Date: Tue, 15 Nov 2016 11:51:39 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (nightmare.dreamchaser.org [192.168.151.101]); Tue, 15 Nov 2016 11:51:39 -0700 (MST) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Nov 2016 18:51:51 -0000 On 11/14/16 22:55, Gary Aitken wrote: > I'm having trouble getting gdb to agree to look at symbols: > > $ cd /usr/ports/graphics/rawtherapee > $ make showconfig > ===> The following configuration options are available for rawtherapee-4.2_3: > OPENMP=on: Enable multicore processing using OpenMP > OPTIMIZED_CFLAGS=off: Use extra compiler optimizations (requires SSE support) > > $ file /usr/local/bin/rawtherapee > /usr/local/bin/rawtherapee: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, for FreeBSD 10.3, not stripped > > $ gdb /usr/local/bin/rawtherapee > GNU gdb 6.1.1 [FreeBSD] > > This GDB was configured as "amd64-marcel-freebsd"...Dwarf Error: wrong version in compilation unit header (is 4, should be 2) [in module /usr/local/bin/rawtherapee] > (gdb) break main > No symbol table is loaded. Use the "file" command. > > My search found implications that a single dependent library with > optimization turned on could cause this to happen; is that what I'm > seeing here, or something else? > > If so, is there an easy way to find out which libraries have compiler > optimization turned on that causes this? > > Or do I need to be running something else like the gdb66 port? > > Or?... now I'm really puzzled: $ nm /usr/local/bin/rawtherapee | grep main 0000000000c2b45c T KLTCountRemainingFeatures 00000000007fecab t _GLOBAL__sub_I_main.cc 00000000011f76e0 b _ZGVZ4mainE8settings 000000000055516c T _ZN10EditWindow21on_mainNB_switch_pageEP16_GtkNotebookPagej 00000000005da0b8 T _ZN8RTWindow21on_mainNB_switch_pageEP16_GtkNotebookPagej 00000000011f76e8 b _ZZ4mainE8settings U gtk_main_quit 00000000007f8905 T main 00000000011f75e0 B mainThread $ gdb /usr/local/bin/rawtherapee GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. This GDB was configured as "amd64-marcel-freebsd"...Dwarf Error: wrong version in compilation unit header (is 4, should be 2) [in module /usr/local/bin/rawtherapee] How do I get the right header, or what is the correct gdb to use? Thanks for any pointers, Gary