.NET Profiler enter/leave function hooks not called

Question

I want to use a .NET profiler to trace the called functions of an application. I used CLR Profiler as a template, but didn't change the profiler (Project ProfilerOBJ) itself (except the GUID). When I try to profile an application the enter/leave function hooks (besides other callbacks like JITCompilationStarted) are not called. But there are also some callbacks which are called (e.g. Shutdown) (which tells me that the profiler is loaded in the process).

I tried running the processes in 32 and 64 bit (with 64 bit the function hooks seem to be defined somewhere) without success.

The test application I profiled is as follows:

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Press Enter to allocate object");
        Console.ReadLine();
        var obj = new Person();

        Console.WriteLine("Press Enter to call method on allocated object");
        Console.ReadLine();
        obj.Walk();

        Console.WriteLine("Press Enter to exit");
        Console.ReadLine();
    }
}

class Person
{
    private int walked = 0;

    public void Walk()
    {
        this.walked++;
    }
}

I expected at least the callbacks ICorProfilerCallback::ObjectAllocated and the enter/leave function hooks to be called. But the only callback called was ICorProfilerCallback::Shutdown.

It seems that even the original CLR profiler's enter/leave function hooks are not called (I tried to output a message in the callback).

What am I missing? Is there more to do than registering the enter/leave function hooks? Or am I making wrong assumptions about the enter/leave function hooks?

Answer 1

I just read that there are additional flags you may set to specify in which events you are interested. One of them is COR_PRF_MONITOR_ENTERLEAVE which does exactly what I was looking for. Thanks rubberduck.