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-// 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.
-
-#include "v8.h"
-
-#include "bootstrapper.h"
-#include "code-stubs.h"
-#include "factory.h"
-#include "macro-assembler.h"
-
-namespace v8 { namespace internal {
-
-Handle<Code> CodeStub::GetCode() {
- uint32_t key = GetKey();
- int index = Heap::code_stubs()->FindNumberEntry(key);
- if (index == -1) {
- HandleScope scope;
-
- // Update the static counter each time a new code stub is generated.
- Counters::code_stubs.Increment();
-
- // Generate the new code.
- MacroAssembler masm(NULL, 256);
-
- // Nested stubs are not allowed for leafs.
- masm.set_allow_stub_calls(AllowsStubCalls());
-
- // Generate the code for the stub.
- masm.set_generating_stub(true);
- Generate(&masm);
-
- // Create the code object.
- CodeDesc desc;
- masm.GetCode(&desc);
-
- // Copy the generated code into a heap object, and store the major key.
- Code::Flags flags = Code::ComputeFlags(Code::STUB);
- Handle<Code> code = Factory::NewCode(desc, NULL, flags, masm.CodeObject());
- code->set_major_key(MajorKey());
-
- // Add unresolved entries in the code to the fixup list.
- Bootstrapper::AddFixup(*code, &masm);
-
- LOG(CodeCreateEvent("Stub", *code, GetName()));
- Counters::total_stubs_code_size.Increment(code->instruction_size());
-
-#ifdef ENABLE_DISASSEMBLER
- if (FLAG_print_code_stubs) {
-#ifdef DEBUG
- Print();
-#endif
- code->Disassemble(GetName());
- PrintF("\n");
- }
-#endif
-
- // Update the dictionary and the root in Heap.
- Handle<Dictionary> dict =
- Factory::DictionaryAtNumberPut(Handle<Dictionary>(Heap::code_stubs()),
- key,
- code);
- Heap::set_code_stubs(*dict);
- index = Heap::code_stubs()->FindNumberEntry(key);
- }
- ASSERT(index != -1);
-
- return Handle<Code>(Code::cast(Heap::code_stubs()->ValueAt(index)));
-}
-
-
-const char* CodeStub::MajorName(CodeStub::Major major_key) {
- switch (major_key) {
- case CallFunction:
- return "CallFunction";
- case GenericBinaryOp:
- return "GenericBinaryOp";
- case SmiOp:
- return "SmiOp";
- case Compare:
- return "Compare";
- case RecordWrite:
- return "RecordWrite";
- case StackCheck:
- return "StackCheck";
- case UnarySub:
- return "UnarySub";
- case RevertToNumber:
- return "RevertToNumber";
- case ToBoolean:
- return "ToBoolean";
- case Instanceof:
- return "Instanceof";
- case CounterOp:
- return "CounterOp";
- case ArgumentsAccess:
- return "ArgumentsAccess";
- case Runtime:
- return "Runtime";
- case CEntry:
- return "CEntry";
- case JSEntry:
- return "JSEntry";
- case GetProperty:
- return "GetProperty";
- case SetProperty:
- return "SetProperty";
- case InvokeBuiltin:
- return "InvokeBuiltin";
- case JSExit:
- return "JSExit";
- default:
- UNREACHABLE();
- return NULL;
- }
-}
-
-
-} } // namespace v8::internal