Debuginfodのソースを表示

[[Category:Package development]]
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{{Related|Debugging/Getting traces}}
{{Related articles end}}

[https://sourceware.org/elfutils/Debuginfod.html Debuginfod] is a service providing debug information over a HTTP API.

== Installation ==

[[Install]] {{Pkg|debuginfod}}.

== Usage ==

{{Note|''debuginfod'' after version {{ic|0.186-3}} adds {{ic|DEBUGINFOD_URLS}} to the environment on login.}}

Set the [[environment variable]] which tells the tooling where to look for debug symbols:

 export DEBUGINFOD_URLS="<nowiki>https://debuginfod.archlinux.org/</nowiki>"

One can also use {{ic|<nowiki>https://debuginfod.elfutils.org/</nowiki>}} which works as a federated server and queries all available debuginfod servers.

Now a debugger can fetch debug symbols without having to install the appropriate debug package. 

{{hc|$ gdb /usr/bin/i3|
[...]
Reading symbols from /usr/bin/i3...
Downloading 1.56 MB separate debug info for /usr/bin/i3
Reading symbols from /home/user/.cache/debuginfod_client/29129d26dbe557d2b56daf90327f64f527304dc1/debuginfo...
(gdb)
}}

See {{man|1|debuginfod-find}} for usage.

== Debugger support ==

Several debuggers support utilizing debuginfod to find debug symbol and source code listing.

{| class="wikitable"
|-
! Package !! Status !! Notes
|-
| {{Pkg|gdb}} || {{G|Supported}} || 
|-
| {{Pkg|delve}} || {{Y|Partial Support}} || Supports debug symbols, missing [https://github.com/go-delve/delve/pull/2885 source listing]
|-
|KDE Crash Report || {{G|Supported}} ||
|}

== See also ==

* [https://sourceware.org/elfutils/Debuginfod.html Homepage]
* [https://www.youtube.com/watch?v=_iaK9L7akJU The elfutils debuginfod server, FOSDEM 2020]