Fix GCC 4.4.4 build....

src/heap-gcchack.cc

+// Copyright 2010 the V8 project authors. 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.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// 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.
+
+#include "v8.h"
+#include "heap.h"
+#include "codegen-inl.h"
+
+// This code, by rights, should live in heap.cc. Previously, it was split off
+// from Heap::CreateFixedStubs in order to stop GCC inlining the functions and
+// generating crashy code. However, with 4.4.4 GCC got better at inlining but
+// no better at generating code, so the crashes came back :(
+//
+// So this file exists to *really* stop GCC 4.4.4 from inlining these functions.
+// See the comments in Heap::CreateFixedStubs and
+// http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39509
+
+namespace v8 {
+namespace internal {
+
+
+void Heap::CreateCEntryStub() {
+  CEntryStub stub(1);
+  set_c_entry_code(*stub.GetCode());
+}
+
+
+#if V8_TARGET_ARCH_ARM && !V8_INTERPRETED_REGEXP
+void Heap::CreateRegExpCEntryStub() {
+  RegExpCEntryStub stub;
+  set_re_c_entry_code(*stub.GetCode());
+}
+#endif
+
+
+void Heap::CreateJSEntryStub() {
+  JSEntryStub stub;
+  set_js_entry_code(*stub.GetCode());
+}
+
+
+void Heap::CreateJSConstructEntryStub() {
+  JSConstructEntryStub stub;
+  set_js_construct_entry_code(*stub.GetCode());
+}
+
+} }  // namespace v8::internal