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Diffstat (limited to 'test/asan/TestCases/Windows/dll_operator_array_new_left_oob.cc')
-rw-r--r--test/asan/TestCases/Windows/dll_operator_array_new_left_oob.cc25
1 files changed, 25 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/dll_operator_array_new_left_oob.cc b/test/asan/TestCases/Windows/dll_operator_array_new_left_oob.cc
new file mode 100644
index 000000000000..736ce80cc32a
--- /dev/null
+++ b/test/asan/TestCases/Windows/dll_operator_array_new_left_oob.cc
@@ -0,0 +1,25 @@
+// RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t
+// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll
+// RUN: not %run %t %t.dll 2>&1 | FileCheck %s
+
+extern "C" __declspec(dllexport)
+int test_function() {
+ char *buffer = new char[42];
+ buffer[-1] = 42;
+// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
+// CHECK: WRITE of size 1 at [[ADDR]] thread T0
+// CHECK-NEXT: test_function {{.*}}dll_operator_array_new_left_oob.cc:[[@LINE-3]]
+// CHECK-NEXT: main {{.*}}dll_host.cc
+//
+// CHECK: [[ADDR]] is located 1 bytes to the left of 42-byte region
+// CHECK-LABEL: allocated by thread T0 here:
+// FIXME: Should get rid of the malloc/free frames called from the inside of
+// operator new/delete in DLLs when using -MT CRT.
+// FIXME: The 'operator new' frame should have [].
+// CHECK: operator new
+// CHECK-NEXT: test_function {{.*}}dll_operator_array_new_left_oob.cc:[[@LINE-13]]
+// CHECK-NEXT: main {{.*}}dll_host.cc
+// CHECK-LABEL: SUMMARY
+ delete [] buffer;
+ return 0;
+}