diff --git a/linker/linker_relocate.h b/linker/linker_relocate.h
new file mode 100644
index 0000000..bf2acc9
--- /dev/null
+++ b/linker/linker_relocate.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <link.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include <utility>
+#include <vector>
+
+#include "linker_common_types.h"
+#include "linker_globals.h"
+#include "linker_soinfo.h"
+
+static constexpr ElfW(Versym) kVersymHiddenBit = 0x8000;
+
+enum RelocationKind {
+  kRelocAbsolute = 0,
+  kRelocRelative,
+  kRelocSymbol,
+  kRelocSymbolCached,
+  kRelocMax
+};
+
+void count_relocation(RelocationKind kind);
+
+template <bool Enabled> void count_relocation_if(RelocationKind kind) {
+  if (Enabled) count_relocation(kind);
+}
+
+void print_linker_stats();
+
+inline bool is_symbol_global_and_defined(const soinfo* si, const ElfW(Sym)* s) {
+  if (__predict_true(ELF_ST_BIND(s->st_info) == STB_GLOBAL ||
+                     ELF_ST_BIND(s->st_info) == STB_WEAK)) {
+    return s->st_shndx != SHN_UNDEF;
+  } else if (__predict_false(ELF_ST_BIND(s->st_info) != STB_LOCAL)) {
+    DL_WARN("Warning: unexpected ST_BIND value: %d for \"%s\" in \"%s\" (ignoring)",
+            ELF_ST_BIND(s->st_info), si->get_string(s->st_name), si->get_realpath());
+  }
+  return false;
+}