gdb 脚本:在选定的断点处执行命令 [英] gdb scripting: execute commands at selected breakpoint

问题描述

我想在 gdb 脚本中预定义一些断点，并在这些断点处调用一些特殊命令，然后自动继续程序执行.因此，理想情况下，我想要一个如下所示的 gdb 脚本:

I'd like to predefine some breakpoints in a gdb script and to invoke some special commands at these breakpoints and afterwards to automatically continue the program execution. So, ideally, I'd like to have a gdb script like the following:

b someFunction
...
if breakpoint from above reached do:
  print var1
  call someOtherFunction
  continue
done

另外一个不幸的事实是，我不能依赖 python 接口来使用断点，因为我目前工作的服务器上的 gdb 版本太旧了！

Additionally an unfortunate fact is, that I can't rely on the python interface for using breakpoints, as the gdb version at the server I currently work at is too old!

推荐答案

您应该看看 command 命令，它使您能够在遇到断点时添加 gdb 命令.请参阅 gdb 手册的断点命令列表部分.

You should take a look at the command command, which enables you to add gdb commands as a breakpoint is hit. See the breakpoint command list section of the gdb manual.

例如:

break someFunction
commands
print var1
end

当 someFunction 上的断点被命中时，会自动打印 var1.

will, when the breakpoint on someFunction is hit, automatically print var1.

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