gcc/c-lang.c

   1 /* Language-specific hook definitions for C front end.
   2    Copyright (C) 1991, 1995, 1997, 1998,
   3    1999, 2000, 2001, 2003, 2004, 2005, 2007 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
  22 #include "config.h"
  23 #include "system.h"
  24 #include "coretypes.h"
  25 #include "tm.h"
  26 #include "tree.h"
  27 #include "c-tree.h"
  28 #include "c-common.h"
  29 #include "ggc.h"
  30 #include "langhooks.h"
  31 #include "langhooks-def.h"
  32 #include "tree-inline.h"
  33 #include "diagnostic.h"
  34 #include "c-objc-common.h"
  35 #include "c-pragma.h"
  36
  37 enum c_language_kind c_language = clk_c;
  38
  39 /* Lang hooks common to C and ObjC are declared in c-objc-common.h;
  40    consequently, there should be very few hooks below.  */
  41
  42 #undef LANG_HOOKS_NAME
  43 #define LANG_HOOKS_NAME "GNU C"
  44 #undef LANG_HOOKS_INIT
  45 #define LANG_HOOKS_INIT c_objc_common_init
  46
  47 /* Each front end provides its own lang hook initializer.  */
  48 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
  49
  50 /* Tree code classes.  */
  51
  52 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
  53
  54 const enum tree_code_class tree_code_type[] = {
  55 #include "tree.def"
  56   tcc_exceptional,
  57 #include "c-common.def"
  58 };
  59 #undef DEFTREECODE
  60
  61 /* Table indexed by tree code giving number of expression
  62    operands beyond the fixed part of the node structure.
  63    Not used for types or decls.  */
  64
  65 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
  66
  67 const unsigned char tree_code_length[] = {
  68 #include "tree.def"
  69   0,
  70 #include "c-common.def"
  71 };
  72 #undef DEFTREECODE
  73
  74 /* Names of tree components.
  75    Used for printing out the tree and error messages.  */
  76 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
  77
  78 const char *const tree_code_name[] = {
  79 #include "tree.def"
  80   "@@dummy",
  81 #include "c-common.def"
  82 };
  83 #undef DEFTREECODE
  84
  85 /* Final processing of file-scope data.  The Objective-C version of
  86    this function still does something.  */
  87 void
  88 finish_file (void)
  89 {
  90 }
  91
  92 #include "gtype-c.h"