radareorg/radare2

Symbols in /usr/lib/debug aren't automatically loaded

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#8,666 创建于 2017年10月9日

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RBindebug-infogood first issuehigh-priority

描述

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.

贡献者指南

技术栈
c
领域
clisecurity
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-2 days
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Understanding of ELF binary formatFamiliarity with radare2's source codeKnowledge of Linux debug symbol paths
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
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.
Symbols in /usr/lib/debug aren't automatically loaded · radareorg/radare2#8666 | Good First Issue