/* Copyright (C) 2002, 2004 Red Hat, Inc.

   This file is part of elfutils.

   Written by Ulrich Drepper <drepper@redhat.com>, 2002.

   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 <libelf.h>

#include ELFUTILS_HEADER(dw)

#include <stdio.h>

#include <unistd.h>

static const Dwarf_Addr testaddr[] =

{

  0x804842b, 0x804842c, 0x804843c, 0x8048459, 0x804845a,

  0x804845b, 0x804845c, 0x8048460, 0x8048465, 0x8048466,

  0x8048467, 0x8048468, 0x8048470, 0x8048471, 0x8048472

};

#define ntestaddr (sizeof (testaddr) / sizeof (testaddr[0]))

int

main (int argc, char *argv[])

{

  int result = 0;

  int cnt;

  for (cnt = 1; cnt < argc; ++cnt)

    {

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

      Dwarf *dbg = dwarf_begin (fd, DWARF_C_READ);

      if (dbg == NULL)

	{

	  printf ("%s not usable\n", argv[cnt]);

	  result = 1;

	  close (fd);

	  continue;

	}

      Dwarf_Aranges *aranges;

      size_t naranges;

      if (dwarf_getaranges (dbg, &aranges, &naranges) != 0)

	printf ("%s: cannot get aranges\n", argv[cnt]);

      else

	{

	  for (size_t i = 0; i < ntestaddr; ++i)

	    {

	      Dwarf_Arange *found;

	      found = dwarf_getarange_addr (aranges, testaddr[i]);

	      if (found != NULL)

		{

		  Dwarf_Off cu_offset;

		  if (dwarf_getarangeinfo (found, NULL, NULL, &cu_offset) != 0)

		    {

		      puts ("failed to get CU die offset");

		      result = 1;

		    }

		  else

		    {

		      const char *cuname;

		      Dwarf_Die cu_die;

		      if (dwarf_offdie (dbg, cu_offset, &cu_die) == NULL

			  || (cuname = dwarf_diename (&cu_die)) == NULL)

			{

			  puts ("failed to get CU die");

			  result = 1;

			}

		      else

			printf ("CU name: \"%s\"\n", cuname);

		    }

		}

	      else

		printf ("%#llx: not in range\n",

			(unsigned long long int) testaddr[i]);

	    }

	  for (size_t i = 0; i < naranges; ++i)

	    {

	      Dwarf_Arange *arange = dwarf_onearange (aranges, i);

	      if (arange == NULL)

		{

		  printf ("cannot get arange %zu: %s\n", i, dwarf_errmsg (-1));

		  break;

		}

	      Dwarf_Addr start;

	      Dwarf_Word length;

	      Dwarf_Off cu_offset;

	      if (dwarf_getarangeinfo (arange, &start, &length, &cu_offset)

		  != 0)

		{

		  printf ("cannot get info from aranges[%zu]\n", i);

		  result = 1;

		}

	      else

		{

		  printf (" [%2zu] start: %#llx, length: %llu, cu: %llu\n",

			  i, (unsigned long long int) start,

			  (unsigned long long int) length,

			  (unsigned long long int) cu_offset);

		  const char *cuname;

		  Dwarf_Die cu_die;

		  if (dwarf_offdie (dbg, cu_offset, &cu_die) == NULL

		      || (cuname = dwarf_diename (&cu_die)) == NULL)

		    {

		      puts ("failed to get CU die");

		      result = 1;

		    }

		  else

		    printf ("CU name: \"%s\"\n", cuname);

		}

	    }

	}

      dwarf_end (dbg);

      close (fd);

    }

  return result;

}