usr/src/test/os-tests/tests/secflags/addrs.c

   1 #include <sys/mman.h>
   2
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5 #include <err.h>
   6
   7 int
   8 main(int argc, char **argv)
   9 {
  10         int stack = 0;
  11         void *heap = NULL;
  12         void *mapping = NULL;
  13
  14         if ((heap = malloc(10)) == NULL)
  15                 err(1, "couldn't allocate");
  16
  17         if ((mapping = mmap((caddr_t)0, 10, (PROT_READ | PROT_WRITE),
  18             MAP_ANON|MAP_PRIVATE, -1, 0)) == (void*)-1)
  19                 err(1, "couldn't map");
  20
  21         printf("  stack: 0x%p\n", &stack);
  22         printf("   heap: 0x%p\n", heap);
  23         printf("mapping: 0x%p\n", mapping);
  24         printf("   text: 0x%p\n", &main);
  25         return (0);
  26 }