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Diffstat (limited to 'test/asan/TestCases/Windows/dll_intercept_memcpy.cc')
-rw-r--r--test/asan/TestCases/Windows/dll_intercept_memcpy.cc32
1 files changed, 32 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/dll_intercept_memcpy.cc b/test/asan/TestCases/Windows/dll_intercept_memcpy.cc
new file mode 100644
index 0000000000000..736e6969d521e
--- /dev/null
+++ b/test/asan/TestCases/Windows/dll_intercept_memcpy.cc
@@ -0,0 +1,32 @@
+// 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
+
+// Test that it works correctly even with ICF enabled.
+// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll -link /OPT:REF /OPT:ICF
+// RUN: not %run %t %t.dll 2>&1 | FileCheck %s
+
+#include <stdio.h>
+#include <string.h>
+
+extern "C" __declspec(dllexport)
+int test_function() {
+ char buff1[6] = "Hello", buff2[5];
+
+ memcpy(buff2, buff1, 5);
+ if (buff1[2] != buff2[2])
+ return 2;
+ printf("Initial test OK\n");
+ fflush(0);
+// CHECK: Initial test OK
+
+ memcpy(buff2, buff1, 6);
+// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
+// CHECK: WRITE of size 6 at [[ADDR]] thread T0
+// CHECK-NEXT: __asan_{{.*}}memcpy
+// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy.cc:[[@LINE-4]]
+// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
+// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy.cc
+// CHECK: 'buff2' <== Memory access at offset {{.*}} overflows this variable
+ return 0;
+}