Update V8 to r6387 as required by WebKit r76408
Change-Id: Icfc5385b0996bd592f8b1ac8cbb44767ee09f1f6
diff --git a/src/gdb-jit.h b/src/gdb-jit.h
new file mode 100644
index 0000000..5d348b6
--- /dev/null
+++ b/src/gdb-jit.h
@@ -0,0 +1,136 @@
+// 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.
+
+#ifndef V8_GDB_JIT_H_
+#define V8_GDB_JIT_H_
+
+//
+// Basic implementation of GDB JIT Interface client.
+// GBD JIT Interface is supported in GDB 7.0 and above.
+// Currently on x64 and ia32 architectures and Linux OS are supported.
+//
+
+#ifdef ENABLE_GDB_JIT_INTERFACE
+#include "v8.h"
+#include "factory.h"
+
+namespace v8 {
+namespace internal {
+
+#define CODE_TAGS_LIST(V) \
+ V(LOAD_IC) \
+ V(KEYED_LOAD_IC) \
+ V(STORE_IC) \
+ V(KEYED_STORE_IC) \
+ V(CALL_IC) \
+ V(CALL_INITIALIZE) \
+ V(CALL_PRE_MONOMORPHIC) \
+ V(CALL_NORMAL) \
+ V(CALL_MEGAMORPHIC) \
+ V(CALL_MISS) \
+ V(STUB) \
+ V(BUILTIN) \
+ V(SCRIPT) \
+ V(EVAL)
+
+class GDBJITLineInfo : public Malloced {
+ public:
+ GDBJITLineInfo()
+ : pc_info_(10) { }
+
+ void SetPosition(intptr_t pc, int pos, bool is_statement) {
+ AddPCInfo(PCInfo(pc, pos, is_statement));
+ }
+
+ struct PCInfo {
+ PCInfo(intptr_t pc, int pos, bool is_statement)
+ : pc_(pc), pos_(pos), is_statement_(is_statement) { }
+
+ intptr_t pc_;
+ int pos_;
+ bool is_statement_;
+ };
+
+ List<PCInfo>* pc_info() {
+ return &pc_info_;
+ }
+
+ private:
+ void AddPCInfo(const PCInfo& pc_info) {
+ pc_info_.Add(pc_info);
+ }
+
+ List<PCInfo> pc_info_;
+};
+
+
+class GDBJITInterface: public AllStatic {
+ public:
+ enum CodeTag {
+#define V(x) x,
+ CODE_TAGS_LIST(V)
+#undef V
+ TAG_COUNT
+ };
+
+ static const char* Tag2String(CodeTag tag) {
+ switch (tag) {
+#define V(x) case x: return #x;
+ CODE_TAGS_LIST(V)
+#undef V
+ default:
+ return NULL;
+ }
+ }
+
+ static void AddCode(const char* name,
+ Code* code,
+ Script* script = NULL);
+
+ static void AddCode(Handle<String> name,
+ Handle<Script> script,
+ Handle<Code> code);
+
+ static void AddCode(CodeTag tag, String* name, Code* code);
+
+ static void AddCode(CodeTag tag, const char* name, Code* code);
+
+ static void AddCode(CodeTag tag, Code* code);
+
+ static void RemoveCode(Code* code);
+
+ static void RegisterDetailedLineInfo(Code* code, GDBJITLineInfo* line_info);
+};
+
+#define GDBJIT(action) GDBJITInterface::action
+
+} } // namespace v8::internal
+#else
+#define GDBJIT(action) ((void) 0)
+#endif
+
+#endif