Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/src/code-stubs.h b/src/code-stubs.h
new file mode 100644
index 0000000..ae86c20
--- /dev/null
+++ b/src/code-stubs.h
@@ -0,0 +1,117 @@
+// Copyright 2006-2008 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.
+
+#ifndef V8_CODE_STUBS_H_
+#define V8_CODE_STUBS_H_
+
+namespace v8 {
+namespace internal {
+
+
+// Stub is base classes of all stubs.
+class CodeStub BASE_EMBEDDED {
+ public:
+ enum Major {
+ CallFunction,
+ GenericBinaryOp,
+ SmiOp,
+ Compare,
+ RecordWrite, // Last stub that allows stub calls inside.
+ ConvertToDouble,
+ WriteInt32ToHeapNumber,
+ StackCheck,
+ UnarySub,
+ RevertToNumber,
+ ToBoolean,
+ Instanceof,
+ CounterOp,
+ ArgumentsAccess,
+ Runtime,
+ CEntry,
+ JSEntry,
+ GetProperty, // ARM only
+ SetProperty, // ARM only
+ InvokeBuiltin, // ARM only
+ JSExit, // ARM only
+ RegExpCEntry, // ARM only
+ NUMBER_OF_IDS
+ };
+
+ // Retrieve the code for the stub. Generate the code if needed.
+ Handle<Code> GetCode();
+
+ static Major MajorKeyFromKey(uint32_t key) {
+ return static_cast<Major>(MajorKeyBits::decode(key));
+ };
+ static int MinorKeyFromKey(uint32_t key) {
+ return MinorKeyBits::decode(key);
+ };
+ static const char* MajorName(Major major_key);
+
+ virtual ~CodeStub() {}
+
+ protected:
+ static const int kMajorBits = 5;
+ static const int kMinorBits = kBitsPerInt - kSmiTagSize - kMajorBits;
+
+ private:
+ // Generates the assembler code for the stub.
+ virtual void Generate(MacroAssembler* masm) = 0;
+
+ // Returns information for computing the number key.
+ virtual Major MajorKey() = 0;
+ virtual int MinorKey() = 0;
+
+ // The CallFunctionStub needs to override this so it can encode whether a
+ // lazily generated function should be fully optimized or not.
+ virtual InLoopFlag InLoop() { return NOT_IN_LOOP; }
+
+ // Returns a name for logging/debugging purposes.
+ virtual const char* GetName() { return MajorName(MajorKey()); }
+
+#ifdef DEBUG
+ virtual void Print() { PrintF("%s\n", GetName()); }
+#endif
+
+ // Computes the key based on major and minor.
+ uint32_t GetKey() {
+ ASSERT(static_cast<int>(MajorKey()) < NUMBER_OF_IDS);
+ return MinorKeyBits::encode(MinorKey()) |
+ MajorKeyBits::encode(MajorKey());
+ }
+
+ bool AllowsStubCalls() { return MajorKey() <= RecordWrite; }
+
+ class MajorKeyBits: public BitField<uint32_t, 0, kMajorBits> {};
+ class MinorKeyBits: public BitField<uint32_t, kMajorBits, kMinorBits> {};
+
+ friend class BreakPointIterator;
+};
+
+} } // namespace v8::internal
+
+#endif // V8_CODE_STUBS_H_