Introduce x87 port

src/frames.cc

 // Copyright 2012 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.
 
 #include "v8.h"
 
 #include "ast.h"
 #include "deoptimizer.h"
 #include "frames-inl.h"
 #include "full-codegen.h"
@@ skipping 432 matching lines @@
 #endif
 
 
 StackFrame::Type StackFrame::GetCallerState(State* state) const {
   ComputeCallerState(state);
   return ComputeType(iterator_, state);
 }
 
 
 Address StackFrame::UnpaddedFP() const {
-#if V8_TARGET_ARCH_IA32
+#if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87
   if (!is_optimized()) return fp();
   int32_t alignment_state = Memory::int32_at(
     fp() + JavaScriptFrameConstants::kDynamicAlignmentStateOffset);
 
   return (alignment_state == kAlignmentPaddingPushed) ?
     (fp() + kPointerSize) : fp();
 #else
   return fp();
 #endif
 }
@@ skipping 1152 matching lines @@
   ZoneList<StackFrame*> list(10, zone);
   for (StackFrameIterator it(isolate); !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame(), zone);
     list.Add(frame, zone);
   }
   return list.ToVector();
 }
 
 
 } }  // namespace v8::internal