From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22730 invoked by alias); 24 Mar 2003 20:07:34 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 22716 invoked from network); 24 Mar 2003 20:07:34 -0000 Received: from unknown (HELO hub.ott.qnx.com) (209.226.137.76) by sources.redhat.com with SMTP; 24 Mar 2003 20:07:34 -0000 Received: from smtp.ott.qnx.com (smtp.ott.qnx.com [10.0.2.158]) by hub.ott.qnx.com (8.9.3/8.9.3) with ESMTP id OAA12317 for ; Mon, 24 Mar 2003 14:52:57 -0500 Received: from catdog ([10.4.2.2]) by smtp.ott.qnx.com (8.8.8/8.6.12) with SMTP id PAA21721 for ; Mon, 24 Mar 2003 15:07:33 -0500 Message-ID: <003101c2f241$078b7050$0202040a@catdog> From: "Kris Warkentin" To: Subject: problem with exec-file when targetting remote machine Date: Mon, 24 Mar 2003 20:07:00 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SW-Source: 2003-03/txt/msg00330.txt.bz2 This problem comes up when using the QNX remote protocol but it's probably more generic than that. I'm not asking for a fix but more for some guidance as to what might be happening. The long and short of it is that if I attach to a process on a remote machine after having read the symbols, everything works fine. I run gdb, load symbols, set a breakpoint on main, run and get: Breakpoint 1, main (argc=1, argv=0x803fcc4) at NetController.cpp:62 62 int lSuccessCode = 0; // Success as one might expect. If, however, exec-file has been set, either explicitly or implicitly by calling "gdb myapp" from the command line, I get something like: Breakpoint 1, 0x40380000 in ?? () (gdb) bt #0 0x40380000 in ?? () #1 0x00000001 in ?? () Note that this doesn't happen with everything - it seems to be mostly with large projects, particularily C++. There's obviously some data being read by gdb based on what the exec-file is set as that is causing a problem. Can anyone give me an idea as to what gdb might be doing differently when exec-file has been set? cheers, Kris