path: root/lib/CodeGen/DwarfWriter.cpp

//===-- llvm/CodeGen/DwarfWriter.cpp - Dwarf Framework ----------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file was developed by James M. Laskey and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains support for writing dwarf debug info into asm files.
//
//===----------------------------------------------------------------------===//

#include "llvm/CodeGen/DwarfWriter.h"

#include "llvm/ADT/StringExtras.h"
#include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineDebugInfo.h"
#include "llvm/Support/CommandLine.h"

#include <iostream>

using namespace llvm;

static cl::opt<bool>
DwarfVerbose("dwarf-verbose", cl::Hidden,
                                cl::desc("Add comments to Dwarf directives."));

//===----------------------------------------------------------------------===//
// Dwarf abbreviations used by this emitter.
//

static const unsigned char AbbrevTAG_compile_unit[] = {
  DW_TAG_compile_unit,     DW_CHILDREN_yes,
  DW_AT_stmt_list,         DW_FORM_data4,
  DW_AT_high_pc,           DW_FORM_addr,
  DW_AT_low_pc,            DW_FORM_addr,
  DW_AT_producer,          DW_FORM_string,
  DW_AT_language,          DW_FORM_data1,
  DW_AT_name,              DW_FORM_string,
  DW_AT_comp_dir,          DW_FORM_string,
  0,                       0
};
  
static const unsigned char AbbrevTAG_subprogram[] = {
  DW_TAG_subprogram,       DW_CHILDREN_yes,
  DW_AT_sibling,           DW_FORM_ref4,
  DW_AT_external,          DW_FORM_flag,
  DW_AT_name,              DW_FORM_string,
  DW_AT_decl_file,         DW_FORM_data1,
  DW_AT_decl_line,         DW_FORM_data1,
  DW_AT_prototyped,        DW_FORM_flag,
  DW_AT_type,              DW_FORM_ref4,
  DW_AT_low_pc,            DW_FORM_addr,
  DW_AT_high_pc,           DW_FORM_addr,
  DW_AT_frame_base,        DW_FORM_block1,
  0,                       0
};
  
static