DebuggingProgramCrash

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== Debugging Program Crashes == ||<tablestyle="float:right; font-size: 0.9em; width:40%; background:#F1F1ED; margin: 0 0 1em 1em;" style="padding:0.5em;">'''Contents'''[[BR]][[TableOfContents]]||
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{{{See the section below if you are using an Ubuntu version prior to Edgy (6.10)}}} This document describes how to install debug packages on Ubuntu, which will aid in providing information for bugs.

== Edgy Eft 6.10 ==

Use this section only if you are using Ubuntu Edgy 6.10. See the following section if you are using a prior version.
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{{{
deb http://people.ubuntu.com/~pitti/ddebs edgy main universe		  {{{deb http://people.ubuntu.com/~pitti/ddebs edgy main universe
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{{{  {{{
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{{{  {{{
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4. The debug symbol packages have the `-dbgsym` suffix attached, so to install the debug symbols for the package `yelp`, you run:
{{{		 4. The debug symbol packages have the '-dbgsym' suffix attached, so to install the debug symbols for the package 'yelp', you run:
 {{{
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 * Announce: https://lists.ubuntu.com/archives/ubuntu-devel-announce/2006-September/000195.html  * Announcement: https://lists.ubuntu.com/archives/ubuntu-devel-announce/2006-September/000195.html
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== Debugging Crash before Edgy ==
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{{{
Use this section if you are using an Ubuntu version prior to Edgy (6.10)		 == Feisty Fawn 7.04 ==

The steps described above for Edgy also work for Feisty, just add the following line to `/etc/apt/sources.list`:

 {{{deb http://people.ubuntu.com/~pitti/ddebs feisty main universe
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== Prior Ubuntu versions ==

Use this section if you are using an Ubuntu version prior to Edgy 6.10.
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   * Something to keep in mind: if you would like to create a build you're going to need to have the relevant deb-src lines in your /etc/apt/sources.list Something to keep in mind: if you would like to create a build you're going to need to have the relevant deb-src lines in your /etc/apt/sources.list
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  a. Install the development scripts: {{{
sudo apt-get install devscripts		   a. Install the development scripts:
  {{{
sudo apt-get install devscripts fakeroot
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  a. Install the build-time dependencies for the package: {{{
  a. Find out to which package your program belongs to:
  {{{
dpkg --search <program>
}}}

 a. Install the build-time dependencies for the package:
  {{{
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  a. Build .debs for debugging: {{{   a. Build .debs for debugging:
  {{{
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  a. Install the needed .debs (they will be in the current working directory if the build succeeded): {{{   a. Install the needed .debs (they will be in the current working directory if the build succeeded):
  {{{
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* most of the packages support the build of debugging version in this way. If that doesn't work for a package you can open a bug against it.
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* Most packages support the build of debugging version in this way. If this process doesn't work for a package, please open a bug against it.

This document describes how to install debug packages on Ubuntu, which will aid in providing information for bugs.

Edgy Eft 6.10

Use this section only if you are using Ubuntu Edgy 6.10. See the following section if you are using a prior version.

1. Add the following line to /etc/apt/sources.list:

}}}

2. Import Martin's public key to your keyring: 

  • wget "http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0x0DE7276D5E0577F2" -O - | sudo apt-key add -

3. Then run 

  • sudo apt-get update

to update your package list.

4. The debug symbol packages have the '-dbgsym' suffix attached, so to install the debug symbols for the package 'yelp', you run: 

  • sudo apt-get install yelp-dbgsym
  • Now you make a ["Backtrace"].
  • You can also run ["Valgrind"], if the program crashes with a "Segmentation fault" or "Bus error".
  • Optionally, you may be asked to produce an ["Strace"].

References

Feisty Fawn 7.04

The steps described above for Edgy also work for Feisty, just add the following line to /etc/apt/sources.list:

}}}

Prior Ubuntu versions

Use this section if you are using an Ubuntu version prior to Edgy 6.10.

  1. Check if the package has a debugging version available. In general, debugging packages will be named with a -dbg suffix

  2. If not, you can generally* build one this way:

Something to keep in mind: if you would like to create a build you're going to need to have the relevant deb-src lines in your /etc/apt/sources.list

  1. Install the development scripts: 
    sudo apt-get install devscripts fakeroot
  2. Find out to which package your program belongs to: 
    dpkg --search <program>
  3. Install the build-time dependencies for the package: 
    sudo apt-get build-dep <package>
  4. Build .debs for debugging: 
    export DEB_BUILD_OPTIONS="debug nostrip noopt"
fakeroot apt-get source -b <package>
  5. Install the needed .debs (they will be in the current working directory if the build succeeded): 
    sudo debi <package>*.changes

* Most packages support the build of debugging version in this way. If this process doesn't work for a package, please open a bug against it.

CategoryBugSquad

DebuggingProgramCrash (last edited 2026-01-27 15:38:17 by sombrafam)