1 files changed, 46 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/initialization-bug.cc b/lib/asan/lit_tests/initialization-bug.cc
new file mode 100644
index 000000000000..8f4e33ef5a35
--- /dev/null
+++ b/lib/asan/lit_tests/initialization-bug.cc
@@ -0,0 +1,46 @@
+// Test to make sure basic initialization order errors are caught.
+
+// RUN: %clangxx_asan -m64 -O0 %s %p/Helpers/initialization-bug-extra2.cc\
+// RUN:   -fsanitize=init-order -o %t && %t 2>&1 \
+// RUN:    | %symbolize | FileCheck %s
+// RUN: %clangxx_asan -m32 -O0 %s %p/Helpers/initialization-bug-extra2.cc\
+// RUN:   -fsanitize=init-order -o %t && %t 2>&1 \
+// RUN:     | %symbolize | FileCheck %s
+
+// Do not test with optimization -- the error may be optimized away.
+
+#include <cstdio>
+
+// The structure of the test is:
+// "x", "y", "z" are dynamically initialized globals.
+// Value of "x" depends on "y", value of "y" depends on "z".
+// "x" and "z" are defined in this TU, "y" is defined in another one.
+// Thus we shoud stably report initialization order fiasco independently of
+// the translation unit order.
+
+int initZ() {
+  return 5;
+}
+int z = initZ();
+
+// 'y' is a dynamically initialized global residing in a different TU.  This
+// dynamic initializer will read the value of 'y' before main starts.  The
+// result is undefined behavior, which should be caught by initialization order
+// checking.
+extern int y;
+int __attribute__((noinline)) initX() {
+  return y + 1;
+  // CHECK: {{AddressSanitizer: initialization-order-fiasco}}
+  // CHECK: {{READ of size .* at 0x.* thread T0}}
+  // CHECK: {{0x.* is located 0 bytes inside of global variable .*(y|z).*}}
+}
+
+// This initializer begins our initialization order problems.
+static int x = initX();
+
+int main() {
+  // ASan should have caused an exit before main runs.
+  printf("PASS\n");
+  // CHECK-NOT: PASS
+  return 0;
+}