gcc/testsuite/c-c++-common/asan/misalign-1.c

   1 /* { dg-do run { target { ilp32 || lp64 } } } */
   2 /* { dg-skip-if "" { *-*-* }  { "*" } { "-O2 -Wno-address-of-packed-member" } } */
   3 /* { dg-additional-options "-fno-omit-frame-pointer" { target *-*-darwin* } } */
   4 /* { dg-shouldfail "asan" } */
   5
   6 struct S { int i; } __attribute__ ((packed));
   7
   8 __attribute__((noinline, noclone)) int
   9 foo (struct S *s)
  10 {
  11   return s->i;
  12 }
  13
  14 __attribute__((noinline, noclone)) int
  15 bar (int *s)
  16 {
  17   return *s;
  18 }
  19
  20 __attribute__((noinline, noclone)) struct S
  21 baz (struct S *s)
  22 {
  23   return *s;
  24 }
  25
  26 int
  27 main ()
  28 {
  29   struct T { char a[3]; struct S b[3]; char c; } t;
  30   int v = 5;
  31   struct S *p = t.b;
  32   asm volatile ("" : "+rm" (p));
  33   p += 3;
  34   if (bar (&v) != 5) __builtin_abort ();
  35   volatile int w = foo (p);
  36   return 0;
  37 }
  38
  39 /* { dg-output "ERROR: AddressSanitizer:\[^\n\r]*on address\[^\n\r]*" } */
  40 /* { dg-output "0x\[0-9a-f\]+ at pc 0x\[0-9a-f\]+ bp 0x\[0-9a-f\]+ sp 0x\[0-9a-f\]+\[^\n\r]*(\n|\r\n|\r)" } */
  41 /* { dg-output "\[^\n\r]*READ of size 4 at 0x\[0-9a-f\]+ thread T0\[^\n\r]*(\n|\r\n|\r)" } */
  42 /* { dg-output "    #0 0x\[0-9a-f\]+ +(in _*foo(\[^\n\r]*misalign-1.c:1\[01]|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\])\[^\n\r]*(\n|\r\n|\r)" } */
  43 /* { dg-output "    #1 0x\[0-9a-f\]+ +(in _*main (\[^\n\r]*misalign-1.c:3\[45]|\[^\n\r]*:0|\[^\n\r]*\\+0x\[0-9a-z\]*)|\[(\]).*(\n|\r\n|\r)" } */