1// In a non-forking sandbox, we fallback to dladdr(). Test that we provide
2// properly demangled C++ names in that case.
3
4// RUN: %clangxx_asan -O0 %s -o %t
5// RUN: not %run %t 2>&1 | FileCheck %s
6// RUN: %env_asan_opts=verbosity=2 not %run sandbox-exec -p '(version 1)(allow default)(deny process-fork)' %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-DLADDR
7
8// sandbox-exec isn't available on iOS
9// UNSUPPORTED: ios
10
11#include <stdlib.h>
12
13class MyClass {
14 public:
15 int my_function(int n) {
16 char *x = (char*)malloc(size: n * sizeof(char));
17 free(ptr: x);
18 return x[5];
19 // CHECK-DLADDR: Using dladdr symbolizer
20 // CHECK: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
21 // CHECK: {{READ of size 1 at 0x.* thread T0}}
22 // CHECK-DLADDR: failed to spawn external symbolizer
23 // CHECK: {{ #0 0x.* in MyClass::my_function\(int\)}}
24 // CHECK: {{freed by thread T0 here:}}
25 // CHECK: {{ #0 0x.* in free}}
26 // CHECK: {{ #1 0x.* in MyClass::my_function\(int\)}}
27 // CHECK: {{previously allocated by thread T0 here:}}
28 // CHECK: {{ #0 0x.* in malloc}}
29 // CHECK: {{ #1 0x.* in MyClass::my_function\(int\)}}
30 }
31};
32
33int main() {
34 MyClass o;
35 return o.my_function(n: 10);
36}
37

source code of compiler-rt/test/asan/TestCases/Darwin/dladdr-demangling.cpp