1 files changed, 28 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/dll_intercept_strlen.cc b/test/asan/TestCases/Windows/dll_intercept_strlen.cc
new file mode 100644
index 0000000000000..f41d47858bee9
--- /dev/null
+++ b/test/asan/TestCases/Windows/dll_intercept_strlen.cc
@@ -0,0 +1,28 @@
+// 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
+
+#include <stdio.h>
+#include <string.h>
+
+extern "C" __declspec(dllexport)
+int test_function() {
+  char str[] = "Hello!";
+  if (6 != strlen(str))
+    return 1;
+  printf("Initial test OK\n");
+  fflush(0);
+// CHECK: Initial test OK
+
+  str[6] = '!';  // Removes '\0' at the end!
+  int len = strlen(str);
+// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
+// FIXME: Should be READ of size 1, see issue 155.
+// CHECK: READ of size {{[0-9]+}} at [[ADDR]] thread T0
+// CHECK-NEXT: {{#0 .*}}strlen
+// CHECK-NEXT: {{#1 .* test_function .*}}dll_intercept_strlen.cc:[[@LINE-5]]
+//
+// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
+// CHECK-NEXT: test_function {{.*}}dll_intercept_strlen.cc:
+  return len > 42;
+}