Submit code-stubs-mips.cc.

src/mips/code-stubs-mips.h

 // Copyright 2011 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
@@ skipping 438 matching lines @@
 
  private:
   Major MajorKey() { return RegExpCEntry; }
   int MinorKey() { return 0; }
 
   bool NeedsImmovableCode() { return true; }
 
   const char* GetName() { return "RegExpCEntryStub"; }
 };
 
+// Trampoline stub to call into native code. To call safely into native code
+// in the presence of compacting GC (which can move code objects) we need to
+// keep the code which called into native pinned in the memory. Currently the
+// simplest approach is to generate such stub early enough so it can never be
+// moved by GC
+class DirectCEntryStub: public CodeStub {
+ public:
+  DirectCEntryStub() {}
+  void Generate(MacroAssembler* masm);
+  void GenerateCall(MacroAssembler* masm,
+                                ExternalReference function);
+  void GenerateCall(MacroAssembler* masm, Register target);
+
+ private:
+  Major MajorKey() { return DirectCEntry; }
+  int MinorKey() { return 0; }
+
+  bool NeedsImmovableCode() { return true; }
+
+  const char* GetName() { return "DirectCEntryStub"; }
+};
 
 class FloatingPointHelper : public AllStatic {
  public:
 
   enum Destination {
     kFPURegisters,
     kCoreRegisters
   };
 
 
@@ skipping 132 matching lines @@
 
 
 class StringDictionaryLookupStub: public CodeStub {
  public:
   enum LookupMode { POSITIVE_LOOKUP, NEGATIVE_LOOKUP };
 
   explicit StringDictionaryLookupStub(LookupMode mode) : mode_(mode) { }
 
   void Generate(MacroAssembler* masm);
 
-  static void GenerateNegativeLookup(MacroAssembler* masm,
-                                     Label* miss,
-                                     Label* done,
-                                     Register receiver,
-                                     Register properties,
-                                     String* name,
-                                     Register scratch0) ;
+  MUST_USE_RESULT static MaybeObject* GenerateNegativeLookup(
+      MacroAssembler* masm,
+      Label* miss,
+      Label* done,
+      Register receiver,
+      Register properties,
+      String* name,
+      Register scratch0);
 
   static void GeneratePositiveLookup(MacroAssembler* masm,
                                      Label* miss,
                                      Label* done,
                                      Register elements,
                                      Register name,
                                      Register r0,
                                      Register r1);
 
  private:
@@ skipping 23 matching lines @@
 
   class LookupModeBits: public BitField<LookupMode, 0, 1> {};
 
   LookupMode mode_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_MIPS_CODE_STUBS_ARM_H_