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 762959b841baf410d9576cd7721fb6d6896cf125..78a4532ab55074f940f2ab976faafa1b5905ef1f 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"
 
@@ -110,6 +111,7 @@ void CodeGenerator::MakeCodePrologue(CompilationInfo* info, const char* kind) {
 }
 
 Handle<Code> CodeGenerator::MakeCodeEpilogue(MacroAssembler* masm,
+                                             EhFrameWriter* eh_frame_writer,
                                              CompilationInfo* info,
                                              Handle<Object> self_reference) {
   Isolate* isolate = info->isolate();
@@ -121,6 +123,8 @@ 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, self_reference, false, is_crankshafted,
       info->prologue_offset(), info->is_debug() && !is_crankshafted);