Gdb Error Accessing Memory Address Unknown Error
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Gdb Cannot Access Memory At Address
8822 times) zalzane Single posting newcomer Posts: 7 GDB having problems setting breakpoints. « on: June 09, 2011, 11:11:08 pm » So what I do is set a breakpoint inside this one constructor, and go to start debug. The full debug console then spews out this info:Code: [Select]PATH=.;G:\Infinita\SDL-1.2.14\include;G:\Infinita\SDL-1.2.14\lib;O:\CodeBlocks\MinGW\bin;E:\Windows\system32;E:\Windows;E:\Windows\System32\Wbem;E:\Windows\System32\WindowsPowerShell\v1.0\ Bug8953 - breakpoint (Error accessing memory address) Summary: breakpoint (Error accessing memory address) Status: ASSIGNED Alias: None Product: gdb Classification: Unclassified Component: breakpoints (show other bugs) Version: 6.3 Importance: P2 critical Target Milestone: --- Assignee: Not yet assigned to anyone URL: Keywords: Depends on: Blocks: Reported: 2005-01-20 02:28 UTC by desimoi Modified: 2008-12-18 19:42 UTC (History) CC List: 4 users (show) gdb-prs jacopo.desimoi kettenis mark.kettenis See Also: Host: Target: Build: Last reconfirmed: Attachments Add an attachment (proposed patch, testcase, etc.) Note You need to log http://forums.codeblocks.org/index.php?topic=14847.0 in before you can comment on or make changes to this bug. Description desimoi 2005-01-20 02:28:00 UTC [Converted from Gnats 1848] I can't insert a breakpoint in any program, I always get an error such as: Error accessing memory address 0xblabla: Input/Output Error Release: GNU gdb 6.3 and previous Environment: Gentoo 2004.3 Linux on amd64 Kernel 2.6.9-gentoo-r9 Comment 1 mark.kettenis 2005-01-22 15:57:16 UTC https://sourceware.org/bugzilla/show_bug.cgi?id=8953 From: Mark Kettenis HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Non-*NIX Forums > Programming [SOLVED] kgdb module debugging question User Name Remember Me? Password http://www.linuxquestions.org/questions/programming-9/kgdb-module-debugging-question-906503/ Programming This forum is for all programming questions. The question does not have to be directly related to Linux and any language is fair game. Notices Welcome to LinuxQuestions.org, a friendly http://lists.denx.de/pipermail/u-boot/2003-February/000426.html and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe gdb cannot to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process cannot insert breakpoint or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. Search this Thread 10-05-2011, 04:02 AM #1 meenajain LQ Newbie Registered: Sep 2011 Posts: 3 Rep: kgdb module debugging question Hi, I am trying to debug my loadable kernel modul the source files Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] I have come across an issue in gdb that prevents me from using gdb to step through flash-resident code. gdb 5.0 appears to behave correctly, but gdb 5.1 and above do not. The issue is as follows: I am using BDI-2000 w/ MPC8245 processor. The bdi is configured to use hardware breakpoints (required for setting breakpoint in read-only memory.) However, the 8245 only contains a single hardware breakpoint register. It appears that the later versions of gdb are attempting to set a breakpoint at program start (reset vector). The scenario is this: connect to target, set arbitrary breakpoint in flash, then type 'cont' to begin execution from reset vector. This results in the error "Cannot insert breakpoint 1" because the hardware breakpoint resource was consumed when the user set the breakpoint, and subsequently gdb tries to set it's own breakpoint at the reset vector. It fails, predictably, because gdb can't write into read-only memory. Here is the trace with remote debugging enabled. Start of gdb session: (gdb) target remote bdi:2001
Command-line: O:\CodeBlocks\MinGW\bin\gdb.exe -nx -fullname -quiet -args bin/Debug/Infinita.exe
Working dir : G:\Infinita\
> set prompt >>>>>>cb_gdb:
Reading symbols from G:\Infinita/bin/Debug/Infinita.exe...done.
(gdb) >>>>>>cb_gdb:
> show version
GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-mingw32".
For bug reporting instructions, please see:
>>>>>>cb_gdb:
> set confirm off
>>>>>>cb_gdb:
> set width 0
>>>>>>cb_gdb:
> set height 0
>>>>>>cb_gdb:
> set breakpoint pending on
>>>>>>cb_gdb:
> set print asm-demangle on
>>>>>>cb_gdb:
> set unwindonsignal on
>>>>>>cb_gdb:
> set debugevents on