This patch adds a new third-party library that implements an ELF dynamic linker.

third_party/crazy_linker/crazy_linker/tests/bar_with_relro.cpp

Index: third_party/crazy_linker/crazy_linker/tests/bar_with_relro.cpp
diff --git a/third_party/crazy_linker/crazy_linker/tests/bar_with_relro.cpp b/third_party/crazy_linker/crazy_linker/tests/bar_with_relro.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..40dddc7bee4ac803acb14cd0bfb81acae9a5a1ed
--- /dev/null
+++ b/third_party/crazy_linker/crazy_linker/tests/bar_with_relro.cpp
@@ -0,0 +1,47 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <android/log.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+// A variant of bar.cpp that also includes a large RELRO section.
+// Used to test RELRO sharing with two different libraries at the
+// same time.
+
+// This is a large table that contains pointers to ensure that it
+// gets put inside the RELRO section.
+#define LINE   "another example string",
+#define LINE8     LINE    LINE    LINE    LINE    LINE    LINE    LINE    LINE
+#define LINE64    LINE8   LINE8   LINE8   LINE8   LINE8   LINE8   LINE8   LINE8
+#define LINE512   LINE64  LINE64  LINE64  LINE64  LINE64  LINE64  LINE64  LINE64
+#define LINE4096  LINE512 LINE512 LINE512 LINE512 LINE512 LINE512 LINE512 LINE512
+
+const char* const kStrings[] = {
+  LINE4096
+  LINE4096
+  LINE4096
+  LINE4096
+};
+
+extern "C" void Foo();
+
+extern "C" void Bar() {
+  printf("%s: Entering\n", __FUNCTION__);
+  __android_log_print(ANDROID_LOG_INFO, "bar", "Hi There!");
+  fprintf(stderr, "Hi There! from Bar\n");
+
+  for (size_t n = 0; n < sizeof(kStrings)/sizeof(kStrings[0]); ++n) {
+    const char* ptr = kStrings[n];
+    if (strcmp(ptr, "another example string")) {
+      printf("%s: Bad string at offset=%d\n", __FUNCTION__, n);
+      exit(1);
+    }
+  }
+
+  printf("%s: Calling Foo()\n", __FUNCTION__);
+  Foo();
+
+  printf("%s: Exiting\n", __FUNCTION__);
+}