diff -r 000000000000 -r 6474c204b198 memory/mozalloc/msvc_raise_wrappers.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/memory/mozalloc/msvc_raise_wrappers.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: sw=4 ts=4 et :
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_msvc_raise_wrappers_h
+#define mozilla_msvc_raise_wrappers_h
+
+#ifdef _XSTDDEF_
+#  error "Unable to wrap _RAISE(); CRT _RAISE() already defined"
+#endif
+#ifdef _XUTILITY_
+#  error "Unabled to wrap _X[exception]"(); CRT versions already declared"
+#endif
+
+#include "mozilla/mozalloc_abort.h"
+
+namespace std {
+
+// NB: user code is not supposed to touch the std:: namespace.  We're
+// doing this after careful review because we want to define our own
+// exception throwing semantics.  Don't try this at home!
+
+MOZALLOC_EXPORT __declspec(noreturn) void moz_Xinvalid_argument(const char*);
+MOZALLOC_EXPORT __declspec(noreturn) void moz_Xlength_error(const char*);
+MOZALLOC_EXPORT __declspec(noreturn) void moz_Xout_of_range(const char*);
+MOZALLOC_EXPORT __declspec(noreturn) void moz_Xoverflow_error(const char*);
+MOZALLOC_EXPORT __declspec(noreturn) void moz_Xruntime_error(const char*);
+
+} // namespace std
+
+#ifndef MOZALLOC_DONT_WRAP_RAISE_FUNCTIONS
+
+#  define _Xinvalid_argument  moz_Xinvalid_argument
+#  define _Xlength_error      moz_Xlength_error
+#  define _Xout_of_range      moz_Xout_of_range
+#  define _Xoverflow_error    moz_Xoverflow_error
+#  define _Xruntime_error     moz_Xruntime_error
+
+#  include <xstddef>
+#  include <xutility>
+
+#  undef _RAISE
+#  define _RAISE(x) mozalloc_abort((x).what())
+
+#endif  // ifndef MOZALLOC_DONT_WRAP_RAISE_FUNCTIONS
+
+#endif  // ifndef mozilla_msvc_raise_wrappers_h