| // RUN: %clangxx_msan %s -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| |
| // RUN: %clangxx_msan %s -O1 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| |
| // RUN: %clangxx_msan %s -O2 -fsanitize=memory -fsanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| |
| // RUN: %clangxx_msan %s -fsanitize=memory -fno-sanitize-memory-use-after-dtor -o %t && MSAN_OPTIONS=poison_in_dtor=1 %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out |
| |
| // RUN: %clangxx_msan -fsanitize=memory -fsanitize-memory-use-after-dtor %s -o %t && MSAN_OPTIONS=poison_in_dtor=0 %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s --check-prefix=CHECK-NO-FLAG < %t.out |
| |
| #include <sanitizer/msan_interface.h> |
| #include <assert.h> |
| #include <stdio.h> |
| #include <new> |
| |
| struct Simple { |
| int x_; |
| Simple() { |
| x_ = 5; |
| } |
| ~Simple() { } |
| }; |
| |
| int main() { |
| unsigned long buf[1]; |
| assert(sizeof(Simple) <= sizeof(buf)); |
| |
| // The placement new operator forces the object to be constructed in the |
| // memory location &buf. Since objects made in this way must be explicitly |
| // destroyed, there are no implicit calls inserted that would interfere with |
| // test behavior. |
| Simple *s = new(&buf) Simple(); |
| s->~Simple(); |
| |
| if (__msan_test_shadow(s, sizeof(*s)) != -1) |
| printf("s is poisoned\n"); |
| else |
| printf("s is not poisoned\n"); |
| // CHECK: s is poisoned |
| // CHECK-NO-FLAG: s is not poisoned |
| |
| return 0; |
| } |