gnu/dist/gdb6/gdb/testsuite/gdb.base/step-test.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3
   4 /* Test various kinds of stepping.
   5 */
   6 int myglob = 0;
   7
   8 int callee() {
   9     myglob++; return 0;
  10 }
  11
  12 /* A structure which, we hope, will need to be passed using memcpy.  */
  13 struct rhomboidal {
  14   int rather_large[100];
  15 };
  16
  17 void
  18 large_struct_by_value (struct rhomboidal r)
  19 {
  20   myglob += r.rather_large[42]; /* step-test.exp: arrive here 1 */
  21 }
  22
  23 int main () {
  24    int w,x,y,z;
  25    int a[10], b[10];
  26
  27    /* Test "next" and "step" */
  28    w = 0;
  29    x = 1;
  30    y = 2;
  31    z = 3;
  32    w = w + 2;
  33    x = x + 3;
  34    y = y + 4;
  35    z = z + 5;
  36
  37    /* Test that "next" goes over a call */
  38    callee(); /* OVER */
  39
  40    /* Test that "step" doesn't */
  41    callee(); /* INTO */
  42
  43    /* Test "stepi" */
  44    a[5] = a[3] - a[4];
  45    callee(); /* STEPI */
  46
  47    /* Test "nexti" */
  48    callee(); /* NEXTI */
  49
  50    y = w + z;
  51
  52    {
  53      struct rhomboidal r;
  54      memset (r.rather_large, 0, sizeof (r.rather_large));
  55      r.rather_large[42] = 10;
  56      large_struct_by_value (r);  /* step-test.exp: large struct by value */
  57    }
  58
  59    exit (0);
  60 }
  61