split_link tool, config, and scripts for windows build

chrome/split_dll_fake_entry.cc

Index: chrome/split_dll_fake_entry.cc
diff --git a/chrome/split_dll_fake_entry.cc b/chrome/split_dll_fake_entry.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b5922e58ae858a14a275550afb18a3c8f3ab21ed
--- /dev/null
+++ b/chrome/split_dll_fake_entry.cc
@@ -0,0 +1,30 @@
+// Copyright 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 <windows.h>
+
+static HINSTANCE g_saved_hinstance;
+static DWORD g_saved_reason;
+static LPVOID g_saved_reserved;
+

[cpu_(ooo_6.6-7.5), 2013/05/13 19:29:52]

some comment here as well. 

I might remove the statics on my CL since the instance and reason should be the
typical ones.

[scottmg, 2013/05/13 20:00:11]

Removed & simplified per discussion.

+extern "C" {
+
+BOOL WINAPI ChromeEmptyEntry(HINSTANCE hinstance,
+                             DWORD reason,
+                             LPVOID reserved) {
+  g_saved_hinstance = hinstance;
+  g_saved_reason = reason;
+  g_saved_reserved = reserved;
+  return 1;
+}
+

[cpu_(ooo_6.6-7.5), 2013/05/13 19:29:52]

is this function exported?

[scottmg, 2013/05/13 20:00:11]

No, just public in the CRT libs.

+BOOL WINAPI _DllMainCRTStartup(HINSTANCE, DWORD, LPVOID);
+
+__declspec(dllexport) void __stdcall DoDeferredCrtInit() {
+  _DllMainCRTStartup(g_saved_hinstance, g_saved_reason, g_saved_reserved);
+}
+
+int main() {}
+

[cpu_(ooo_6.6-7.5), 2013/05/13 19:29:52]

why do we need main?

[scottmg, 2013/05/13 20:00:11]

Added comment and __debugbreak.

+}