Move V8 to external/v8

Change-Id: If68025d67453785a651c5dfb34fad298c16676a4

1 files changed, 148 insertions, 0 deletions

diff --git a/src/code-stubs.cc b/src/code-stubs.cc
new file mode 100644
index 00000000..9c24c60b
--- /dev/null
+++ b/src/code-stubs.cc
@@ -0,0 +1,148 @@
+// 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()->FindEntry(key);
+  if (index == NumberDictionary::kNotFound) {
+    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, InLoop());
+    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(Logger::STUB_TAG, *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<NumberDictionary> dict =
+        Factory::DictionaryAtNumberPut(
+            Handle<NumberDictionary>(Heap::code_stubs()),
+            key,
+            code);
+    Heap::public_set_code_stubs(*dict);
+    index = Heap::code_stubs()->FindEntry(key);
+  }
+  ASSERT(index != NumberDictionary::kNotFound);
+
+  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";
+    case ConvertToDouble:
+      return "ConvertToDouble";
+    case WriteInt32ToHeapNumber:
+      return "WriteInt32ToHeapNumber";
+    default:
+      UNREACHABLE();
+      return NULL;
+  }
+}
+
+
+} }  // namespace v8::internal