compiler-rt/test/hwasan/TestCases/stack-oob.c

   1 // RUN: %clang_hwasan_oldrt -DSIZE=2 -O0 %s -o %t && %run %t
   2 // RUN: %clang_hwasan -DSIZE=2 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   3 // RUN: %clang_hwasan_oldrt -DSIZE=15 -O0 %s -o %t && %run %t
   4 // RUN: %clang_hwasan -DSIZE=15 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   5 // RUN: %clang_hwasan_oldrt -DSIZE=16 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   6 // RUN: %clang_hwasan -DSIZE=16 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   7 // RUN: %clang_hwasan -DSIZE=64 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   8 // RUN: %clang_hwasan -DSIZE=0x1000 -O0 %s -o %t && not %run %t 2>&1 | FileCheck %s
   9
  10 // REQUIRES: stable-runtime
  11
  12 // Stack short granules are currently not implemented on x86.
  13 // XFAIL: x86_64
  14
  15 #include <stdlib.h>
  16 #include <sanitizer/hwasan_interface.h>
  17
  18 __attribute__((noinline))
  19 int f() {
  20   char z[SIZE];
  21   char *volatile p = z;
  22   return p[SIZE];
  23 }
  24
  25 int main() {
  26   f();
  27   // CHECK: READ of size 1 at
  28   // CHECK: #0 {{.*}} in f{{.*}}stack-oob.c:[[@LINE-6]]
  29
  30   // CHECK-NOT: Cause: global-overflow
  31   // CHECK: Cause: stack tag-mismatch
  32   // CHECK: is located in stack of threa
  33   // CHECK-NOT: Cause: global-overflow
  34
  35   // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in f
  36 }