/* Copyright (C) 2005 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 <inttypes.h>

#include <assert.h>

#include ELFUTILS_HEADER(dwfl)

#include <argp.h>

#include <stdio.h>

#include <locale.h>

#include <stdlib.h>

#include <string.h>

#include "system.h"

static void

print_address (Dwfl_Module *mod, Dwarf_Addr address)

{

  int n = dwfl_module_relocations (mod);

  if (n < 0)

    error (0, 0, "dwfl_module_relocations: %s", dwfl_errmsg (-1));

  else if (n > 0)

    {

      int i = dwfl_module_relocate_address (mod, &address);

      if (i < 0)

	error (0, 0, "dwfl_module_relocate_address: %s", dwfl_errmsg (-1));

      else

	{

	  const char *modname = dwfl_module_info (mod, NULL, NULL, NULL,

						  NULL, NULL, NULL, NULL);

	  const char *secname = dwfl_module_relocation_info (mod, i, NULL);

	  if (n > 1 || secname[0] != '\0')

	    printf ("%s(%s)+%#" PRIx64, modname, secname, address);

	  else

	    printf ("%s+%#" PRIx64, modname, address);

	  return;

	}

    }

  printf ("%#" PRIx64, address);

}

struct args

{

  const char *arg;

  char *file;

  int line;

};

static int

handle_module (Dwfl_Module *mod __attribute__ ((unused)),

	       void **udata __attribute__ ((unused)),

	       const char *modname, Dwarf_Addr base __attribute__ ((unused)),

	       Dwarf *dbg __attribute__ ((unused)),

	       Dwarf_Addr bias __attribute__ ((unused)), void *arg)

{

  const struct args *const a = arg;

  Dwfl_Line **lines = NULL;

  size_t nlines = 0;

  if (dwfl_module_getsrc_file (mod, a->file, a->line, 0, &lines, &nlines) == 0)

    {

      for (size_t inner = 0; inner < nlines; ++inner)

	{

	  Dwarf_Addr addr;

	  int line = a->line, col = 0;

	  const char *file = dwfl_lineinfo (lines[inner], &addr, &line, &col,

					    NULL, NULL);

	  if (file != NULL)

	    {

	      printf ("%s -> ", a->arg);

	      print_address (mod, addr);

	      if (modname[0] != '\0')

		printf (" (%s:", modname);

	      if (strcmp (file, a->file) || line != a->line || col != 0)

		printf (" %s%s:%d", modname[0] != '\0' ? "" : "(",

			file, line);

	      if (col != 0)

		printf (":%d", col);

	      if (modname[0] != '\0'

		  || strcmp (file, a->file) || line != a->line || col != 0)

		puts (")");

	      else

		puts ("");

	    }

	}

      free (lines);

    }

  return DWARF_CB_OK;

}

int

main (int argc, char *argv[])

{

  int cnt;

  /* Set locale.  */

  (void) setlocale (LC_ALL, "");

  Dwfl *dwfl = NULL;

  (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &cnt, &dwfl);

  assert (dwfl != NULL);

  for (; cnt < argc; ++cnt)

    {

      struct args a = { .arg = argv[cnt] };

      switch (sscanf (a.arg, "%m[^:]:%d", &a.file, &a.line))

	{

	default:

	case 0:

	  printf ("ignored %s\n", argv[cnt]);

	  continue;

	case 1:

	  a.line = 0;

	  break;

	case 2:

	  break;

	}

      (void) dwfl_getdwarf (dwfl, &handle_module, &a, 0);

      free (a.file);

    }

  dwfl_end (dwfl);

  return 0;

}