Symbols in /usr/lib/debug aren't automatically loaded · radareorg/radare2#8666

(12 comments) (2 reactions) (0 assignees)C (23,826 stars) (3,229 forks)batch import

RBindebug-infogood first issuehigh-priority

説明

See https://github.com/radare/radare2/issues/4888 for context.

Several linux systems split debug symbols from executables and installs them under /usr/lib/debug/ e.g. /usr/path/to/bin/cmd has symbols at /usr/lib/debug/usr/path/to/bin/cmd. radare2 1.6.0 doesn't appear to load these symbols. The symbols for calls are missing, attemping to seek, s, to a function fails, etc. On the other hand, gdb automatically loads the symbols from these files.

コントリビューターガイド

技術スタック: c
領域: clisecurity
Issue 種別: feature
難度: 3
推定時間: 1-2 days
活動状況: stale
明確さ: clear
前提条件: Understanding of ELF binary formatFamiliarity with radare2's source codeKnowledge of Linux debug symbol paths
初心者向け度: 30
調査方針: Examine the issue #4888 referenced in the description for prior context. Review radare2's symbol loading code, likely in libr/bin or libr/core, to understand how debug symbols are currently searched. Compare with gdb's behavior to determine the expected file path pattern. Implement a function to automatically search for debug symbols in /usr/lib/debug/ based on the executable's path. Test with a Linux system that has split debug symbols.