Reland Implement .eh_frame writer and disassembler.

src/codegen.cc

Index: src/codegen.cc
diff --git a/src/codegen.cc b/src/codegen.cc
index 4597ae27669a4954ea1d7c841497dec6be0142af..d4c1e438cb3654212f10476e2eeef15d44241d3e 100644
--- a/src/codegen.cc
+++ b/src/codegen.cc
@@ -11,6 +11,7 @@
 #include "src/bootstrapper.h"
 #include "src/compiler.h"
 #include "src/debug/debug.h"
+#include "src/eh-frame.h"
 #include "src/parsing/parser.h"
 #include "src/runtime/runtime.h"
 
@@ -117,8 +118,8 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info, const char* kind) {
 #endif  // DEBUG
 }
 
-
 Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
+                                             EhFrameWriter* eh_frame_writer,
                                              CompilationInfo* info) {
   Isolate* isolate = info->isolate();
 
@@ -129,6 +130,7 @@ Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
       Code::ExtractKindFromFlags(flags) == Code::OPTIMIZED_FUNCTION ||
       info->IsStub();
   masm->GetCode(&desc);
+  if (eh_frame_writer) eh_frame_writer->GetEhFrame(&desc);
   Handle<Code> code =
       isolate->factory()->NewCode(desc, flags, masm->CodeObject(),
                                   false, is_crankshafted,