Hi Anuj,
You may need to provide a few more details, but DTrace allows you to
trace exactly what you want. Just specify the function component of
the pid provider probe:
pid123::foo:entry
You should take a look at the chapter in the DTrace docs on tracing
user-land processes.
- ahl
[$]
On Feb 20, 2008, at 6:06 PM, Anuj Goyal <[EMAIL PROTECTED]> wrote:
> How would I get a set of functions being called from within a
> thread? eg. I want bar() and collect() to be flagged, but not foo()
> and main().
>
> e.g. I would want
>
>
> #include <stdio.h>
> #include <math.h>
> #include <pthread.h>
>
> #define NGRPS 30
> #define NTHRS 10
>
> int object_count = 0;
> int* object_array;
> int group_array[NGRPS];
> int total_count = 0;
>
> void bar(){return;}
>
> void* collect(void* arg)
> {
> int j;
>
> int group_id = *((int *) arg);
> int group_count = 0;
>
> for (j = 0; j < object_count; j++) {
> int current_object = object_array[j];
> group_count++;
> }
> total_count += group_count;
> bar();
> return NULL;
> }
>
> void foo() {int i;}
>
> int main(int argc, char** argv)
> {
> int i;
> pthread_t pids[NTHRS -1];
>
> object_count = argv[1];
>
> for (i = 0; i < NTHRS; i++) {
> pthread_create(&pids[i], NULL, collect, (void*) &i);
> }
>
> if (total_count != object_count) {
> printf(" the collected object count %d doesn't match the
> original object count %d\n",
> total_count, object_count);
> }
> return 0;
> }
>
>
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