vmmap-example.c

// gcc -o vmmap-example -c vmmap-example.c
// ./vmmap-example &
// vmmap <pid>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

//int global_j;
//const int ci = 24;

int main (int argc, char **argv)
{
    //int local_stack = 0;
    //char *const_data = "This data is constant";
    //char *tiny = malloc (32);            /* allocate 32 bytes */
    //char *small = malloc (2*1024);       /* Allocate 2K */
    //char *large = malloc (1*1024*1024);  /* Allocate 1MB */
        
    //printf("Text is %p\n", main);
    //printf("Global Data is %p\n", &global_j);
    //printf("Local (Stack) is %p\n", &local_stack);
    //printf("Constant data is %p\n", &ci);
    //printf("Hardcoded string (also constant) are at %p\n", const_data);
    //printf("Tiny allocations from %p\n", tiny);
    //printf("Small allocations from %p\n", small);
    //printf("Large allocations from %p\n", large);
    //printf("Malloc (i.e. libSystem) is at %p\n", malloc);
    //sleep(100); /* so we can use vmmap on this process before it exits */
    usleep(1000);
    return 1;
}