[hwasan] more heap-buffer-overflow tests
-// RUN: %clang_hwasan %s -o %t && not %run %t 2>&1 | FileCheck %s
+// RUN: %clang_hwasan %s -o %t
+// RUN: not %run %t 40 2>&1 | FileCheck %s --check-prefix=CHECK40
+// RUN: not %run %t 80 2>&1 | FileCheck %s --check-prefix=CHECK80
+// RUN: not %run %t -30 2>&1 | FileCheck %s --check-prefix=CHECKm30
// REQUIRES: stable-runtime
-// TODO: test more cases.
#include <stdlib.h>
#include <stdio.h>
#include <sanitizer/hwasan_interface.h>
-int main() {
+int main(int argc, char **argv) {
__hwasan_enable_allocator_tagging();
+ int offset = argc < 2 ? 40 : atoi(argv[1]);
char * volatile x = (char*)malloc(30);
- x[40] = 42;
-// CHECK: is located 10 bytes to the right of 30-byte region
+ x[offset] = 42;
+// CHECK40: is located 10 bytes to the right of 30-byte region
+// CHECK80: is located 50 bytes to the right of 30-byte region
+// CHECKm30: is located 30 bytes to the left of 30-byte region
free(x);
}
