/* Copyright (C) 2012, 2013, 2015 Red Hat, Inc.

   This file is part of elfutils.

   This file is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   elfutils is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <fcntl.h>

#include ELFUTILS_HEADER(dw)

#include <stdio.h>

#include <unistd.h>

#include <dwarf.h>

#include <inttypes.h>

int

main (int argc, char *argv[])

{

  for (int i = 1; i < argc; ++i)

    {

      int fd = open (argv[i], O_RDONLY);

      Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);

      if (dbg != NULL)

	{

	  Dwarf_Off off = 0;

	  size_t cuhl;

	  Dwarf_Off noff;

	  uint64_t type_sig;

	  while (dwarf_next_unit (dbg, off, &noff, &cuhl, NULL, NULL, NULL,

				  NULL, &type_sig, NULL) == 0)

	    {

	      Dwarf_Die die_mem;

	      dwarf_offdie_types (dbg, off + cuhl, &die_mem);

	      off = noff;

	    }

	  off = 0;

	  while (dwarf_nextcu (dbg, off, &noff, &cuhl, NULL, NULL, NULL) == 0)

	    {

	      Dwarf_Die die_mem;

	      Dwarf_Die *die = dwarf_offdie (dbg, off + cuhl, &die_mem);

	      Dwarf_Die iter_mem;

	      Dwarf_Die *iter = &iter_mem;

	      dwarf_child (die, &iter_mem);

	      while (1)

		{

		  if (dwarf_tag (iter) == DW_TAG_variable)

		    {

		      Dwarf_Attribute attr_mem;

		      Dwarf_Die form_mem, *form;

		      form = dwarf_formref_die (dwarf_attr (iter, DW_AT_type,

							    &attr_mem),

						&form_mem);

		      if (form == NULL)

			printf ("fail\n");

		      else

			printf ("ok %s [%" PRIx64 "]\n",

				dwarf_diename (form), dwarf_dieoffset (form));

		    }

		  if (dwarf_siblingof (iter, &iter_mem) != 0)

		    break;

		}

	      off = noff;

	    }

	  dwarf_end (dbg);

	}

      close (fd);

    }

}