radareorg/radare2

Support interfacing with debuginfod from binutils

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#15,853 opened on Jan 19, 2020

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DWARFRBindebug-infogood first issuehackaton

Description

With GNU Binutils 2.34 comes debuginfod support, which is the HTTP server catching our eye while the debuginfod server is distributed as part of the latest elfutils package. This isn't for a general purpose web server thankfully but is an HTTP server for distributing ELF/DWARF debugging information and source code. With debuginfod enabled, Binutils' readelf and objdump utilities can query the HTTP server(s) for debug files that cannot otherwise be found. Enabling this option requires building Binutils using --with-debuginfod.

See https://developers.redhat.com/blog/2019/10/14/introducing-debuginfod-the-elfutils-debuginfo-server/ for more information.

Contributor guide

Tech stack
c
Domain
tooling
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
C programmingUnderstanding of ELF/DWARF formatFamiliarity with radare2 build system
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
20
Research direction
Investigate the debuginfod client library from elfutils (libdebuginfod) and how it is integrated in binutils. Review radare2's existing debug information handling and build system to determine where to add debuginfod support. Look at the official documentation and the redhat blog post for API details. Consider adding a configuration option with debuginfod similar to binutils.
Support interfacing with debuginfod from binutils · radareorg/radare2#15853 | Good First Issue