[ASan/Win tests] Add memcpy/strdup/strlen interception tests

llvm-svn: 208899

1 files changed, 28 insertions, 0 deletions

diff --git a/compiler-rt/test/asan/TestCases/Windows/intercept_strdup.cc b/compiler-rt/test/asan/TestCases/Windows/intercept_strdup.cc
new file mode 100644
index 00000000000..1e1a26d6a77
--- /dev/null
+++ b/compiler-rt/test/asan/TestCases/Windows/intercept_strdup.cc
@@ -0,0 +1,28 @@
+// RUN: %clangxx_asan -O0 %s -Fe%t
+// FIXME: 'cat' is needed due to PR19744.
+// RUN: not %run %t 2>&1 | cat | FileCheck %s
+
+#include <stdio.h>
+#include <string.h>
+#include <malloc.h>
+
+int main() {
+  char *ptr = _strdup("Hello");
+  int subscript = 1;
+  ptr[subscript] = '3';
+  printf("%s\n", ptr);
+  fflush(0);
+// CHECK: H3llo
+
+  subscript = -1;
+  ptr[subscript] = 42;
+// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
+// CHECK: WRITE of size 1 at [[ADDR]] thread T0
+// CHECK:   {{#0 .* main .*}}intercept_strdup.cc:[[@LINE-3]]
+// CHECK: [[ADDR]] is located 1 bytes to the left of 6-byte region
+// CHECK: allocated by thread T0 here:
+// CHECK:   {{#0 .* malloc }}
+// CHECK:   {{#1 .* _strdup }}
+// CHECK:   {{#2 .* main .*}}intercept_strdup.cc:[[@LINE-16]]
+  free(ptr);
+}