diff options
Diffstat (limited to 'lib/asan/lit_tests/TestCases/use-after-poison.cc')
-rw-r--r-- | lib/asan/lit_tests/TestCases/use-after-poison.cc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/TestCases/use-after-poison.cc b/lib/asan/lit_tests/TestCases/use-after-poison.cc new file mode 100644 index 000000000000..e3bc6ecee7f2 --- /dev/null +++ b/lib/asan/lit_tests/TestCases/use-after-poison.cc @@ -0,0 +1,20 @@ +// Check that __asan_poison_memory_region works. +// RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s +// +// Check that we can disable it +// RUN: ASAN_OPTIONS=allow_user_poisoning=0 %t + +#include <stdlib.h> + +extern "C" void __asan_poison_memory_region(void *, size_t); + +int main(int argc, char **argv) { + char *x = new char[16]; + x[10] = 0; + __asan_poison_memory_region(x, 16); + int res = x[argc * 10]; // BOOOM + // CHECK: ERROR: AddressSanitizer: use-after-poison + // CHECK: main{{.*}}use-after-poison.cc:[[@LINE-2]] + delete [] x; + return res; +} |