1// RUN: %clangxx_asan -O0 -fsanitize-address-field-padding=1 %s -o %t
2// RUN: not %run %t 11 2>&1 | FileCheck %s
3// RUN: %run %t 10
4//
5// FIXME: fix 32-bits.
6// REQUIRES: asan-64-bits, shadow-scale-3
7// FIXME: Implement ASan intra-object padding in Clang's MS record layout
8// UNSUPPORTED: target={{.*windows-msvc.*}}
9#include <stdio.h>
10#include <stdlib.h>
11class Foo {
12 public:
13 Foo() : pre1(1), pre2(2), post1(3), post2(4) {
14 }
15 virtual ~Foo() {
16 }
17 void set(int i, int val) { a[i] = val; }
18// CHECK: ERROR: AddressSanitizer: intra-object-overflow
19// CHECK: #0 {{.*}}Foo::set{{.*}}intra-object-overflow.cpp:[[@LINE-2]]
20 private:
21 int pre1, pre2;
22 int a[11];
23 int post1, post2;
24};
25
26int main(int argc, char **argv) {
27 int idx = argc == 2 ? atoi(nptr: argv[1]) : 0;
28 Foo *foo = new Foo;
29 foo->set(i: idx, val: 42);
30// CHECK: #1 {{.*}}main{{.*}}intra-object-overflow.cpp:[[@LINE-1]]
31// CHECK: is located 84 bytes inside of 128-byte region
32 delete foo;
33}
34

source code of compiler-rt/test/asan/TestCases/intra-object-overflow.cpp