DebuggingProgramCrash

Differences between revisions 16 and 21 (spanning 5 versions)
⇤ ← Revision 16 as of 2006-06-19 16:06:44 →
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← Revision 21 as of 2006-10-09 16:25:51 → ⇥
Size: 1154
Editor: stjhnf0111w-142162140177
Comment: sudo isn't necessary to build source packages... fakeroot will do.
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#REFRESH 0 http://help.ubuntu.com/community/DebuggingProgramCrash  1. Check if the package has a debugging version available. In general, debugging packages will be named with a `-dbg` suffix
 1. 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

  a. Install the development scripts: {{{
sudo apt-get install devscripts
}}}
  a. Install the build-time dependencies for the package: {{{
sudo apt-get build-dep <package>
}}}
  a. Build .debs for debugging: {{{
export DEB_BUILD_OPTIONS="debug nostrip noopt"
fakeroot apt-get source -b <package>
}}}
  a. Install the needed .debs (they will be in the current working directory if the build succeeded): {{{
sudo debi <package>*.changes
}}}
 1. Now you make a ["Backtrace"].
 1. You can also run ["Valgrind"], if the program crashes with a "Segmentation fault" or "Bus error".
 1. Optionally, you may be asked to produce an ["Strace"].

* 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.

CategoryBugSquad

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

* 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.

CategoryBugSquad

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