mirror of
https://github.com/JakeHillion/drgn.git
synced 2024-12-23 09:43:06 +00:00
8358c31d26
I couldn't find any good summaries of how to get debugging symbols on various distros, so I guess we'll have to maintain our own. Signed-off-by: Omar Sandoval <osandov@osandov.com>
120 lines
3.7 KiB
ReStructuredText
120 lines
3.7 KiB
ReStructuredText
Getting Debugging Symbols
|
|
=========================
|
|
|
|
.. highlight:: console
|
|
|
|
Most Linux distributions don't install debugging symbols for installed packages
|
|
by default. This page documents how to install debugging symbols on common
|
|
distributions. If drgn prints an error like::
|
|
|
|
$ sudo drgn
|
|
could not get debugging information for:
|
|
kernel (could not find vmlinux for 5.14.14-200.fc34.x86_64)
|
|
...
|
|
|
|
Then you need to install debugging symbols.
|
|
|
|
Fedora
|
|
------
|
|
|
|
Fedora makes it very easy to install debugging symbols with the `DNF
|
|
debuginfo-install plugin
|
|
<https://dnf-plugins-core.readthedocs.io/en/latest/debuginfo-install.html>`_,
|
|
which is installed by default. Simply run ``sudo dnf debuginfo-install
|
|
$package``::
|
|
|
|
$ sudo dnf debuginfo-install python3
|
|
|
|
To find out what package owns a binary, use ``rpm -qf``::
|
|
|
|
$ rpm -qf $(which python3)
|
|
python3-3.9.7-1.fc34.x86_64
|
|
|
|
To install symbols for the running kernel::
|
|
|
|
$ sudo dnf debuginfo-install kernel-$(uname -r)
|
|
|
|
Also see the `Fedora documentation
|
|
<https://fedoraproject.org/wiki/StackTraces>`_.
|
|
|
|
Debian
|
|
------
|
|
|
|
Debian requires you to manually add the debugging symbol repositories::
|
|
|
|
$ sudo tee /etc/apt/sources.list.d/debug.list << EOF
|
|
deb http://deb.debian.org/debian-debug/ $(lsb_release -cs)-debug main
|
|
deb http://deb.debian.org/debian-debug/ $(lsb_release -cs)-proposed-updates-debug main
|
|
EOF
|
|
$ sudo apt update
|
|
|
|
Then, debugging symbol packages can be installed with ``sudo apt install``.
|
|
Some debugging symbol packages are named with a ``-dbg`` suffix::
|
|
|
|
$ sudo apt install python3-dbg
|
|
|
|
And some are named with a ``-dbgsym`` suffix::
|
|
|
|
$ sudo apt install coreutils-dbgsym
|
|
|
|
You can use the ``find-dbgsym-packages`` command from the ``debian-goodies``
|
|
package to find the correct name::
|
|
|
|
$ sudo apt install debian-goodies
|
|
$ find-dbgsym-packages $(which python3)
|
|
libc6-dbg libexpat1-dbgsym python3.9-dbg zlib1g-dbgsym
|
|
$ find-dbgsym-packages $(which cat)
|
|
coreutils-dbgsym libc6-dbg
|
|
|
|
To install symbols for the running kernel::
|
|
|
|
$ sudo apt install linux-image-$(uname -r)-dbg
|
|
|
|
Also see the `Debian documentation
|
|
<https://wiki.debian.org/HowToGetABacktrace>`_.
|
|
|
|
Ubuntu
|
|
------
|
|
|
|
On Ubuntu, you must install the debugging symbol archive signing key and
|
|
manually add the debugging symbol repositories::
|
|
|
|
$ sudo apt update
|
|
$ sudo apt install ubuntu-dbgsym-keyring
|
|
$ sudo tee /etc/apt/sources.list.d/debug.list << EOF
|
|
deb http://ddebs.ubuntu.com $(lsb_release -cs) main restricted universe multiverse
|
|
deb http://ddebs.ubuntu.com $(lsb_release -cs)-updates main restricted universe multiverse
|
|
deb http://ddebs.ubuntu.com $(lsb_release -cs)-proposed main restricted universe multiverse
|
|
EOF
|
|
$ sudo apt update
|
|
|
|
Like Debian, some debugging symbol packages are named with a ``-dbg`` suffix
|
|
and some are named with a ``-dbgsym`` suffix::
|
|
|
|
$ sudo apt install python3-dbg
|
|
$ sudo apt install coreutils-dbgsym
|
|
|
|
You can use the ``find-dbgsym-packages`` command from the ``debian-goodies``
|
|
package to find the correct name::
|
|
|
|
$ sudo apt install debian-goodies
|
|
$ find-dbgsym-packages $(which python3)
|
|
libc6-dbg libexpat1-dbgsym python3.9-dbg zlib1g-dbgsym
|
|
$ find-dbgsym-packages $(which cat)
|
|
coreutils-dbgsym libc6-dbg
|
|
|
|
To install symbols for the running kernel::
|
|
|
|
$ sudo apt install linux-image-$(uname -r)-dbgsym
|
|
|
|
Also see the `Ubuntu documentation
|
|
<https://wiki.ubuntu.com/Debug%20Symbol%20Packages>`_.
|
|
|
|
Arch Linux
|
|
----------
|
|
|
|
Arch Linux unfortunately does not make debugging symbols available. Packages
|
|
must be manually rebuilt with debugging symbols enabled. See the `ArchWiki
|
|
<https://wiki.archlinux.org/title/Debugging/Getting_traces>`_ and the `feature
|
|
request <https://bugs.archlinux.org/task/38755?project=1>`_.
|