gprof一个库-问题 [英] gprof a library - question

问题描述

我需要在我们的系统中gprof一个库来检查函数调用，并查看是否可以对其进行优化.基本上，我拥有的是

I need to gprof a library in our system to examine the function calls and see if we can optimize it any more. Basically, what I have is

使用共享库myLib.so的可执行文件A

Executable A which uses a shared Library myLib.so

我要gprof myLib.so.当我使用-pg选项编译myLib.so源代码时，它会生成一个.so文件.

I want to gprof the myLib.so. When I compile myLib.so source using -pg option, it produces a .so file just fine.

但是，由于某种原因，针对该库重新编译可执行文件A并不会生成* .gmon文件.需要做什么?我应该静态链接myLib吗?如果是这样，请告诉我如何.我是新手，所以请原谅我的无知.我每天都在学习

But, recompiling the Executable A against that library is not producing the *.gmon file for some reason. What needs to be done? Should I link the myLib statically? If so, please tell me how. I am a newbie, so pardon my ignorance. I am learning everyday

提前谢谢.

推荐答案

您可以做得比 gprof .

您可以使用良好的采样分析器，例如 RotateRight/Zoom ，也可以尝试

You could use a good sampling profiler like RotateRight/Zoom, or you could try this technique. Also lsstack serves well. pstack does too, but is more work for you.

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