/* A variant of get-files test that uses dwarf_next_lines.

   Copyright (C) 2002, 2004, 2005, 2007, 2014, 2018 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 <inttypes.h>

#include <libelf.h>

#include ELFUTILS_HEADER(dw)

#include <stdio.h>

#include <unistd.h>

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;

	  if (fd != -1)

	    close (fd);

	  continue;

	}

      Dwarf_Off off;

      Dwarf_Off next_off = 0;

      Dwarf_CU *cu = NULL;

      Dwarf_Files *files;

      size_t nfiles;

      int res;

      while ((res = dwarf_next_lines (dbg, off = next_off, &next_off, &cu,

				      &files, &nfiles, NULL, NULL)) == 0)

	{

	  printf ("off = %" PRIu64 "\n", off);

	  const char *const *dirs;

	  size_t ndirs;

	  if (dwarf_getsrcdirs (files, &dirs, &ndirs) != 0)

	    {

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

	      result = 1;

	      break;

	    }

	  if (dirs[0] == NULL)

	    puts (" dirs[0] = (null)");

	  else

	    printf (" dirs[0] = \"%s\"\n", dirs[0]);

	  for (size_t i = 1; i < ndirs; ++i)

	    printf (" dirs[%zu] = \"%s\"\n", i, dirs[i]);

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

	    printf (" file[%zu] = \"%s\"\n", i,

		    dwarf_filesrc (files, i, NULL, NULL));

	}

      if (res < 0)

	{

	  printf ("dwarf_next_lines failed: %s\n", dwarf_errmsg (-1));

	  result = 1;

	}

      dwarf_end (dbg);

      close (fd);

    }

  return result;

}