Dwarf Error: wrong version in compilation unit header (is 4,
问题描述: 在gcc4.9,gdb7.0环境下,启动gdb时出现了如下错误:Dwarf Error: wrong version in compilation unit header (is 4, should be 2) [in module /dawnfs/users/ 出现此错误的原因主要是gcc4.9生成的调试信息是dawnfs4,而gdb7.0支持的是 dawnfs2
问题描述:在gcc4.9,gdb7.0环境下,启动gdb时出现了如下错误:Dwarf Error: wrong version in compilation unit header (is 4, should be 2) [in module /dawnfs/users/ 出现此错误的原因主要是gcc4.9生成的调试信息是dawnfs4,而gdb7.0支持的是dawnfs2
解决方案:这个问题其实是编译环境的问题,可以更改gcc和gdb的版本,这需要去寻找合适的版本。当然也可以给gcc增加编译参数,使其生成dawnfs2调试信息,主要参数为-gdwarf-2 -gstrict-dwarf,做法如下:
在.bashrc中加入alias gcc='gcc -gdwarf-2 -gstrict-dwarf',重启终端使其生效
这样gdb可以使用,也不会出现上面的错误。
参考gcc文档:https://gcc.gnu.org/gcc-4.5/changes.html

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