diff options
Diffstat (limited to 'lib/asan/lit_tests/TestCases/Linux/malloc_delete_mismatch.cc')
-rw-r--r-- | lib/asan/lit_tests/TestCases/Linux/malloc_delete_mismatch.cc | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/Linux/malloc_delete_mismatch.cc b/lib/asan/lit_tests/TestCases/Linux/malloc_delete_mismatch.cc new file mode 100644 index 000000000000..7010eb2de2e7 --- /dev/null +++ b/lib/asan/lit_tests/TestCases/Linux/malloc_delete_mismatch.cc @@ -0,0 +1,31 @@ +// Check that we detect malloc/delete mismatch only if the approptiate flag +// is set. + +// RUN: %clangxx_asan -g %s -o %t 2>&1 + +// Find error and provide malloc context. +// RUN: ASAN_OPTIONS=alloc_dealloc_mismatch=1 not %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=ALLOC-STACK + +// No error here. +// RUN: ASAN_OPTIONS=alloc_dealloc_mismatch=0 %t + +// Also works if no malloc context is available. +// RUN: ASAN_OPTIONS=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=0 not %t 2>&1 | FileCheck %s +// RUN: ASAN_OPTIONS=alloc_dealloc_mismatch=1:malloc_context_size=0:fast_unwind_on_malloc=1 not %t 2>&1 | FileCheck %s +#include <stdlib.h> + +static volatile char *x; + +int main() { + x = (char*)malloc(10); + x[0] = 0; + delete x; +} +// CHECK: ERROR: AddressSanitizer: alloc-dealloc-mismatch (malloc vs operator delete) on 0x +// CHECK-NEXT: #0{{.*}}operator delete +// CHECK: #{{.*}}main +// CHECK: is located 0 bytes inside of 10-byte region +// CHECK-NEXT: allocated by thread T0 here: +// ALLOC-STACK-NEXT: #0{{.*}}malloc +// ALLOC-STACK: #{{.*}}main +// CHECK: HINT: {{.*}} you may set ASAN_OPTIONS=alloc_dealloc_mismatch=0 |