DebuggingProgramCrash

Differences between revisions 1 and 30 (spanning 29 versions)
⇤ ← Revision 1 as of 2005-05-28 20:36:44 →
Size: 1040
Editor: adsl-213-190-44-43
Comment: imported from the old wiki
← Revision 30 as of 2007-02-04 21:45:29 → ⇥
Size: 2613
Editor: c-24-21-235-175
Comment: Formatting of addition for Feisty
Deletions are marked like this. Additions are marked like this.
Line 1: Line 1:
= DebuggingProgramCrash = ||<tablestyle="float:right; font-size: 0.9em; width:40%; background:#F1F1ED; margin: 0 0 1em 1em;" style="padding:0.5em;">'''Contents'''[[BR]][[TableOfContents]]||

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`:
 {{{deb http://people.ubuntu.com/~pitti/ddebs edgy main universe
}}}

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
}}}

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

=== References ===

 * Announcement: https://lists.ubuntu.com/archives/ubuntu-devel-announce/2006-September/000195.html


== 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
}}}


== Prior Ubuntu versions ==

Use this section if you are using an Ubuntu version prior to Edgy 6.10.
Line 5: Line 52:
  a. Install the build-time dependencies for the package: {{{
   * 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

  a. Install the development scripts:
  {{{
sudo apt-get install devscripts
}}}
  a. Install the build-time dependencies for the package:
  {{{
Line 8: Line 63:
  a. Build .debs for debugging: {{{
DEB_BUILD_OPTIONS="nostrip noopt" sudo apt-get source -b <package>		   a. Build .debs for debugging:
  {{{
export DEB_BUILD_OPTIONS="debug nostrip noopt"
fakeroot apt-get source -b <package>
Line 11: Line 68:
  a. Install the needed .debs (they will be in the current working directory if the build succeeded): {{{
sudo dpkg --install <package.deb>		   a. Install the needed .debs (they will be in the current working directory if the build succeeded):
  {{{
sudo debi <package>*.changes
Line 14: Line 72:
 1. Start the program under control of `gdb`: {{{
gdb <program>
(gdb) run <arguments, if any>
}}}
 1. The program will start. Perform any actions necessary to reproduce the crash
 1. Retrieve a backtrace of the crash: {{{
(gdb) thread apply all bt full }}}
Line 22: Line 73:
 1. Include the complete output from gdb in your bug report
Line 24: Line 74:
* 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. * 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

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
    2. Install the build-time dependencies for the package: 
      sudo apt-get build-dep <package>
    3. Build .debs for debugging: 
      export DEB_BUILD_OPTIONS="debug nostrip noopt"
fakeroot apt-get source -b <package>
    4. 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 2022-12-20 22:13:06 by sergiodj)