Add mips64 port.

src/gdb-jit.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifdef ENABLE_GDB_JIT_INTERFACE
 #include "src/v8.h"
 
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
 #include "src/compiler.h"
@@ skipping 1076 matching lines @@
       Writer::Slot<uint32_t> fb_block_size = w->CreateSlotHere<uint32_t>();
       uintptr_t fb_block_start = w->position();
 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
       w->Write<uint8_t>(DW_OP_reg5);  // The frame pointer's here on ia32
 #elif V8_TARGET_ARCH_X64
       w->Write<uint8_t>(DW_OP_reg6);  // and here on x64.
 #elif V8_TARGET_ARCH_ARM
       UNIMPLEMENTED();
 #elif V8_TARGET_ARCH_MIPS
       UNIMPLEMENTED();
+#elif V8_TARGET_ARCH_MIPS64
+      UNIMPLEMENTED();
 #else
 #error Unsupported target architecture.
 #endif
       fb_block_size.set(static_cast<uint32_t>(w->position() - fb_block_start));
 
       int params = scope->num_parameters();
       int slots = scope->num_stack_slots();
       int context_slots = scope->ContextLocalCount();
       // The real slot ID is internal_slots + context_slot_id.
       int internal_slots = Context::MIN_CONTEXT_SLOTS;
@@ skipping 1063 matching lines @@
   base::LockGuard<base::Mutex> lock_guard(mutex.Pointer());
   ASSERT(!IsLineInfoTagged(line_info));
   HashMap::Entry* e = GetEntries()->Lookup(code, HashForCodeObject(code), true);
   ASSERT(e->value == NULL);
   e->value = TagLineInfo(line_info);
 }
 
 
 } }  // namespace v8::internal
 #endif