memcheck/tests/brk2.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3
   4 #define MAX 3000
   5
   6 // At one time, this was causing a seg fault within Valgrind -- it was when
   7 // extending the brk segment onto a new page.  Fixed in vg_syscalls.c 1.129.
   8
   9 int main () {
  10   char* ptr;
  11   int i;
  12
  13   for (i=0; i<MAX; i++) {
  14     ptr = sbrk(1);
  15
  16     if (ptr == (void*)-1) {
  17       printf ("sbrk() failed!\n");
  18       return 0;
  19     }
  20
  21     *ptr = 0;
  22   }
  23
  24   return 0;
  25 }