Debug just a function in .dll or .so

[Juaneme]

I want to debug a c++ .dll using dr memory (memory leak), just for a specific function in dll

I found in the doc that we can use fuzz arguments to debug .dll or .so

void func(int a, int b)
{
int *tab = new int[5];
}

int main()
{
f();
func(1,2);
DrMemory a;
float res = a.sum(5,4.3,6);
std::cout << res;
return 0;
}
I wand just debug function "func(int a, int b)"

The cmd : drmemory -fuzz module Dr_Memory.exe -fuzz_function func debug all the program
Any suggestions,

[Derek Bruening]

The fuzzing control is for running a function over and over again: I don't think it is what you are looking for.  Probably what you want is to only report leaks with your function in the callstack.  The closest might be to limit to the file containing that function with the -src_whitelist runtime option (https://dynamorio.org/drmemory_docs/page_running.html#sec_potential_errors, https://dynamorio.org/drmemory_docs/page_options.html).

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[Juaneme]

Yes, " Probably what you want is to only report leaks with your function in the callstack" That is what I want

How can I specify a function from whole program ??

drmemory -src_whitelist func -- Dr_Memory.exe ??

Thanks,

On Monday, May 4, 2020 at 5:10:52 PM UTC+1, Derek Bruening wrote:

The fuzzing control is for running a function over and over again: I don't think it is what you are looking for.  Probably what you want is to only report leaks with your function in the callstack.  The closest might be to limit to the file containing that function with the -src_whitelist runtime option (https://dynamorio.org/drmemory_docs/page_running.html#sec_potential_errors, https://dynamorio.org/drmemory_docs/page_options.html).

On Mon, May 4, 2020 at 9:13 AM Juaneme <contact....@gmail.com> wrote:

I want to debug a c++ .dll using dr memory (memory leak), just for a specific function in dll

I found in the doc that we can use fuzz arguments to debug .dll or .so

void func(int a, int b)
{
    int *tab = new int[5];
}

int main()
{
    f();
    func(1,2);
    DrMemory a;
    float res = a.sum(5,4.3,6);
    std::cout << res;
    return 0;
}
I wand just debug function "func(int a, int b)"

The cmd : drmemory -fuzz module Dr_Memory.exe -fuzz_function func debug all the program
Any suggestions,

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