gdb/testsuite/gdb.base/attach2.c

   1 /* This program is intended to be started outside of gdb, and then
   2    attached to by gdb.  Thus, it simply spins in a loop.  The loop
   3    is exited when & if the variable 'should_exit' is non-zero.  (It
   4    is initialized to zero in this program, so the loop will never
   5    exit unless/until gdb sets the variable to non-zero.)
   6    */
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10
  11 float  bidule = 0.0;
  12 volatile int  should_exit = 0;
  13
  14 int main ()
  15 {
  16   int  local_i = 0;
  17
  18   /* Cannot sleep a very long time, as attach.exp assumes the
  19      process will exit before the standard GDB timeout.  */
  20   sleep( 10 ); /* System call causes register fetch to fail */
  21                /* This is a known HPUX "feature"            */
  22   while (! should_exit)
  23     {
  24       local_i++;
  25     }
  26   return (0);
  27 }