linux下分析C++中某个函数的每行代码运行时间的profiler

[xibei123]

求问有没有linux下能够分析C++中某个函数的每行代码运行时间或占比的profiler？
搜到gprof -l，但是新的gcc编译器已经不支持了，
gcov貌似也只是统计每行代码的执行次数，没有统计运行时间。

[xibei123]

引用 1 楼 fefe82 的回复:

valgrind --tool=callgrind 可能得在加点别的参数，可以到指令。 http://valgrind.org/docs/manual/cl-manual.html

引用

--dump-line=<no|yes> [default: yes] This specifies that event counting should be performed at source line granularity. This allows source annotation for sources which are compiled with debug information (-g). --dump-instr=<no|yes> [default: no] This specifies that event counting should be performed at per-instruction granularity. This allows for assembly code annotation. Currently the results can only be displayed by KCachegrind.

谢谢，但看描述似乎还是只得到每行的执行次数（event counting）？

[fefe82]

valgrind --tool=callgrind 可能得在加点别的参数，可以到指令。 http://valgrind.org/docs/manual/cl-manual.html

引用

--dump-line=<no|yes> [default: yes] This specifies that event counting should be performed at source line granularity. This allows source annotation for sources which are compiled with debug information (-g). --dump-instr=<no|yes> [default: no] This specifies that event counting should be performed at per-instruction granularity. This allows for assembly code annotation. Currently the results can only be displayed by KCachegrind.