memcheck/tests/badjump.c

   1 #include "tests/sys_mman.h"
   2
   3 int main ( void )
   4 {
   5 #if defined(__powerpc64__) && _CALL_ELF != 2
   6    /* on ppc64-linux, a function pointer points to a function
   7       descriptor, not to the function's entry point.  Hence to get
   8       uniform behaviour on all supported targets - a jump to an
   9       unmapped page - the following is needed. */
  10    unsigned long long int p[3];
  11    p[0] = (unsigned long long int)get_unmapped_page();
  12    p[1] = 0;
  13    p[2] = 0;
  14 #else
  15    char* p = get_unmapped_page();
  16 #endif
  17    return ((int(*)(void)) p) ();
  18 }
  19