File: badjump.c

package info (click to toggle)
valgrind 1%3A3.12.0~svn20160714-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 120,428 kB
  • ctags: 70,855
  • sloc: ansic: 674,645; exp: 26,134; xml: 21,574; asm: 7,570; cpp: 7,567; makefile: 7,380; sh: 6,188; perl: 5,855; haskell: 195
file content (19 lines) | stat: -rw-r--r-- 533 bytes parent folder | download | duplicates (9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
#include "tests/sys_mman.h"

int main ( void )
{
#if defined(__powerpc64__) && _CALL_ELF != 2
   /* on ppc64-linux, a function pointer points to a function
      descriptor, not to the function's entry point.  Hence to get
      uniform behaviour on all supported targets - a jump to an
      unmapped page - the following is needed. */
   unsigned long long int p[3];
   p[0] = (unsigned long long int)get_unmapped_page();
   p[1] = 0;
   p[2] = 0;
#else
   char* p = get_unmapped_page();
#endif
   return ((int(*)(void)) p) ();
}