1 files changed, 28 insertions, 0 deletions
diff --git a/test/asan/TestCases/Linux/odr_c_test.c b/test/asan/TestCases/Linux/odr_c_test.c
new file mode 100644
index 000000000000..b1d23493b570
--- /dev/null
+++ b/test/asan/TestCases/Linux/odr_c_test.c
@@ -0,0 +1,28 @@
+// Test that we can properly report an ODR violation
+// between an instrumented global and a non-instrumented global.
+
+// RUN: %clang_asan %s -fPIC -shared -o %t-1.so  -DFILE1
+// RUN: %clang_asan %s -fPIC -shared -o %t-2.so  -DFILE2
+// RUN: %clang_asan %s -fPIE %t-1.so %t-2.so -Wl,-R`pwd` -o %t
+// RUN: not %run %t 2>&1 | FileCheck %s
+//
+// REQUIRES: x86_64-target-arch
+//
+// CHECK: The following global variable is not properly aligned.
+// CHECK: ERROR: AddressSanitizer: odr-violation
+#if defined(FILE1)
+__attribute__((aligned(8))) int x;
+__attribute__((aligned(1))) char y;
+// The gold linker puts ZZZ at the start of bss (where it is aligned)
+// unless we have a large alternative like Displace:
+__attribute__((aligned(1))) char Displace[105];
+__attribute__((aligned(1))) char ZZZ[100];
+#elif defined(FILE2)
+int ZZZ = 1;
+#else
+extern int ZZZ;
+int main() {
+  return ZZZ;
+}
+#endif
+