gcc/input.c

   1 /* Data and functions related to line maps and input files.
   2    Copyright (C) 2004, 2007, 2008, 2009, 2010
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "intl.h"
  25 #include "input.h"
  26
  27 /* Current position in real source file.  */
  28
  29 location_t input_location;
  30
  31 struct line_maps *line_table;
  32
  33 expanded_location
  34 expand_location (source_location loc)
  35 {
  36   expanded_location xloc;
  37   if (loc <= BUILTINS_LOCATION)
  38     {
  39       xloc.file = loc == UNKNOWN_LOCATION ? NULL : _("<built-in>");
  40       xloc.line = 0;
  41       xloc.column = 0;
  42       xloc.sysp = 0;
  43     }
  44   else
  45     {
  46       const struct line_map *map = linemap_lookup (line_table, loc);
  47       xloc.file = map->to_file;
  48       xloc.line = SOURCE_LINE (map, loc);
  49       xloc.column = SOURCE_COLUMN (map, loc);
  50       xloc.sysp = map->sysp != 0;
  51     };
  52   return xloc;
  53 }