Add X32 port into V8

src/frames.h

Index: src/frames.h
===================================================================
--- src/frames.h	(revision 15486)
+++ src/frames.h	(working copy)
@@ -92,7 +92,11 @@
   static const int kContextOffset  = 3 * kPointerSize;
   static const int kFPOffset       = 4 * kPointerSize;
 
+#ifndef V8_TARGET_ARCH_X32
   static const int kSize = kFPOffset + kPointerSize;
+#else
+  static const int kSize = kFPOffset + kHWRegSize;

[danno, 2013/07/17 13:33:21]

There should be no platform-specific #ifs in this file at all, see my previous
comments, but I think you want:

static const int kSize = kFPOffset + kFPOnStackSize;

+#endif
   static const int kSlotCount = kSize >> kPointerSizeLog2;
 };
 
@@ -168,6 +172,7 @@
   // context and function.
   // StandardFrame::IterateExpressions assumes that kContextOffset is the last
   // object pointer.
+#ifndef V8_TARGET_ARCH_X32
   static const int kFixedFrameSize    =  4 * kPointerSize;
   static const int kExpressionsOffset = -3 * kPointerSize;
   static const int kMarkerOffset      = -2 * kPointerSize;
@@ -175,6 +180,15 @@
   static const int kCallerFPOffset    =  0 * kPointerSize;
   static const int kCallerPCOffset    = +1 * kPointerSize;
   static const int kCallerSPOffset    = +2 * kPointerSize;
+#else
+  static const int kFixedFrameSize    =  2 * kPointerSize + 2 * kHWRegSize;

[danno, 2013/07/17 13:33:21]

See above, if you have the right constants, I think this code doesn't need to be
platform-specific

+  static const int kExpressionsOffset = -3 * kPointerSize;
+  static const int kMarkerOffset      = -2 * kPointerSize;
+  static const int kContextOffset     = -1 * kPointerSize;
+  static const int kCallerFPOffset    =  0 * kPointerSize;
+  static const int kCallerPCOffset    = +1 * kHWRegSize;
+  static const int kCallerSPOffset    = +2 * kHWRegSize;
+#endif
 };