GDB-将地址映射到源代码中的行和列 [英] GDB - map address to line and column in source code

问题描述

gcc和clang都具有选项 -gcolumn-info ，其描述方式如下:

Both gcc and clang have option -gcolumn-info, which is described this way:

将位置列信息发送到DWARF调试信息中，而不仅仅是文件和行.

Emit location column information into DWARF debugging information, rather than just file and line.

我已经使用此选项编译了二进制文件.现在，我有一些说明的地址，并想将其翻译回源文件，行号和列.有没有办法在gdb中做到这一点?还有其他一些工具可以提取此信息吗?

I have compiled my binary with this option. Now I have address of some instruction and want to translate it back to source file, line number and column. Is there a way to do it in gdb? Is there some other tool that can extract this information?

我知道我可以在gdb中使用 info行* 0xabcd1234 来获取源文件和与该地址对应的行，但是它不会显示该列.

I know that I can use info line *0xabcd1234 in gdb to get the source file and line corresponding to that address, but it does not show the column.

推荐答案

在回答我的问题时，我发现了一种使用 lldb 和 image lookup 命令获取信息的方法:

Answering my guestion, I found one way to get the information using lldb and image lookup command:

(lldb) image lookup --address 0x134adc
      Address: libaaa.so[0x0000000000134adc] (libaaa.so.PT_LOAD[0]..text + 1030908)
      Summary: libaaa.so`test() + 272 at test.cpp:1842:124

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