如何告诉GCC仪器的code。与调用我自己的函数code的每个_LINE_？ [英] How to tell gcc to instrument the code with calls to my own function each _line_ of code?

问题描述

例如，存在的来源：

void my_special_debugging_function(const char* function_name, const char* file_name, int line_number);

void func1() {
    func3();
    func4();
}

void foo() {
    func1();
    if(qqq) {
        func2();
    };
    func3();
    func4();
    for(...) {
        func5();
    }
}

这应该编译：

void my_special_debugging_function(const char* function_name, const char* file_name, int line_number);

void func1() {
    my_special_debugging_function("func1", "prog.c", 3);
    func3();
    my_special_debugging_function("func1", "prog.c", 4);
    func4();
    my_special_debugging_function("func1", "prog.c", 5);
}

void foo() {
    my_special_debugging_function("foo", "prog.c", 8);
    func1();
    my_special_debugging_function("foo", "prog.c", 9);
    if(qqq) {
        my_special_debugging_function("foo", "prog.c", 10);
        func2();
        my_special_debugging_function("foo", "prog.c", 11);
    };
    my_special_debugging_function("foo", "prog.c", 12);
    func3();
    my_special_debugging_function("foo", "prog.c", 13);
    func4();
    my_special_debugging_function("foo", "prog.c", 14);
    for(...) {
        my_special_debugging_function("foo", "prog.c", 15);
        func5();
        my_special_debugging_function("foo", "prog.c", 16);
    }
    my_special_debugging_function("foo", "prog.c", 17);
}

当然，my_special_debugging_function应该可以使用回溯功能。

有GCC的选项呢？或者是有在烃源$ C ​​$ C级做的工具吗？ （例如生成与我的功能，其他的C源集）

Is there option of gcc to do it? Or is there a tool to do it at souce code level? (e.g. generate other C souce with my function)

@related http://stackoverflow.com/questions/3989992/how-to-interleave-c-c-souce-with-my-string-only-inside-functions-at-appropri

@related http://stackoverflow.com/questions/3992587/what-profiler-should-i-use-to-measure-real-time-including-waiting-for-syscalls

推荐答案

请参阅 -finstrument函数 GCC的文档中获得。您可能需要使用提供dladdr（）中的调试功能，也可能需要使用 -Wl，-export动态。

See -finstrument-functions in the GCC documentation. You may want to use dladdr() in the debugging function, which may also require linking with -Wl,-export-dynamic.

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