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 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 2, 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 COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22
  23 #include "config.h"
  24 #include "system.h"
  25 #include "coretypes.h"
  26 #include "tm.h"
  27 #include "tree.h"
  28 #include "c-tree.h"
  29 #include "c-common.h"
  30 #include "ggc.h"
  31 #include "langhooks.h"
  32 #include "langhooks-def.h"
  33
  34 enum c_language_kind c_language = clk_c;
  35
  36 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
  37
  38 #undef LANG_HOOKS_NAME
  39 #define LANG_HOOKS_NAME "GNU C"
  40 #undef LANG_HOOKS_INIT
  41 #define LANG_HOOKS_INIT c_objc_common_init
  42 #undef LANG_HOOKS_FINISH
  43 #define LANG_HOOKS_FINISH c_common_finish
  44 #undef LANG_HOOKS_INIT_OPTIONS
  45 #define LANG_HOOKS_INIT_OPTIONS c_common_init_options
  46 #undef LANG_HOOKS_HANDLE_OPTION
  47 #define LANG_HOOKS_HANDLE_OPTION c_common_handle_option
  48 #undef LANG_HOOKS_POST_OPTIONS
  49 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
  50 #undef LANG_HOOKS_GET_ALIAS_SET
  51 #define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
  52 #undef LANG_HOOKS_SAFE_FROM_P
  53 #define LANG_HOOKS_SAFE_FROM_P c_safe_from_p
  54 #undef LANG_HOOKS_EXPAND_EXPR
  55 #define LANG_HOOKS_EXPAND_EXPR c_expand_expr
  56 #undef LANG_HOOKS_MARK_ADDRESSABLE
  57 #define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
  58 #undef LANG_HOOKS_PARSE_FILE
  59 #define LANG_HOOKS_PARSE_FILE c_common_parse_file
  60 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
  61 #define LANG_HOOKS_TRUTHVALUE_CONVERSION c_common_truthvalue_conversion
  62 #undef LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES
  63 #define LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES c_insert_default_attributes
  64 #undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
  65 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
  66 #undef LANG_HOOKS_UNSAFE_FOR_REEVAL
  67 #define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
  68 #undef LANG_HOOKS_STATICP
  69 #define LANG_HOOKS_STATICP c_staticp
  70 #undef LANG_HOOKS_NO_BODY_BLOCKS
  71 #define LANG_HOOKS_NO_BODY_BLOCKS true
  72 #undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
  73 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
  74 #undef LANG_HOOKS_PRINT_IDENTIFIER
  75 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
  76 #undef LANG_HOOKS_FUNCTION_ENTER_NESTED
  77 #define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
  78 #undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
  79 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
  80 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
  81 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
  82
  83 /* Attribute hooks.  */
  84 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
  85 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
  86 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
  87 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
  88
  89 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  90 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  91   c_cannot_inline_tree_fn
  92 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  93 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  94   c_disregard_inline_limits
  95 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
  96 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  97   anon_aggr_type_p
  98 #undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
  99 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 100   c_convert_parm_for_inlining
 101 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
 102 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
 103
 104 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
 105 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
 106
 107 #undef LANG_HOOKS_TYPE_FOR_MODE
 108 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
 109 #undef LANG_HOOKS_TYPE_FOR_SIZE
 110 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
 111 #undef LANG_HOOKS_SIGNED_TYPE
 112 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
 113 #undef LANG_HOOKS_UNSIGNED_TYPE
 114 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
 115 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
 116 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
 117 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
 118 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
 119 #undef LANG_HOOKS_TYPE_PROMOTES_TO
 120 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
 121
 122 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
 123
 124 /* Each front end provides its own.  */
 125 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
 126
 127 /* Tree code classes.  */
 128
 129 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
 130
 131 const char tree_code_type[] = {
 132 #include "tree.def"
 133   'x',
 134 #include "c-common.def"
 135 };
 136 #undef DEFTREECODE
 137
 138 /* Table indexed by tree code giving number of expression
 139    operands beyond the fixed part of the node structure.
 140    Not used for types or decls.  */
 141
 142 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
 143
 144 const unsigned char tree_code_length[] = {
 145 #include "tree.def"
 146   0,
 147 #include "c-common.def"
 148 };
 149 #undef DEFTREECODE
 150
 151 /* Names of tree components.
 152    Used for printing out the tree and error messages.  */
 153 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
 154
 155 const char *const tree_code_name[] = {
 156 #include "tree.def"
 157   "@@dummy",
 158 #include "c-common.def"
 159 };
 160 #undef DEFTREECODE
 161
 162 /* Used by c-lex.c, but only for objc.  */
 163
 164 tree
 165 lookup_interface (tree arg ATTRIBUTE_UNUSED)
 166 {
 167   return 0;
 168 }
 169
 170 tree
 171 is_class_name (tree arg ATTRIBUTE_UNUSED)
 172 {
 173   return 0;
 174 }
 175
 176 tree
 177 objc_is_id (tree arg ATTRIBUTE_UNUSED)
 178 {
 179   return 0;
 180 }
 181
 182 void
 183 objc_check_decl (tree decl ATTRIBUTE_UNUSED)
 184 {
 185 }
 186
 187 int
 188 objc_comptypes (tree lhs ATTRIBUTE_UNUSED, tree rhs ATTRIBUTE_UNUSED,
 189                 int reflexive ATTRIBUTE_UNUSED)
 190 {
 191   return -1;
 192 }
 193
 194 tree
 195 objc_message_selector (void)
 196 {
 197   return 0;
 198 }
 199
 200 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 201
 202 tree
 203 lookup_objc_ivar (tree id ATTRIBUTE_UNUSED)
 204 {
 205   return 0;
 206 }
 207
 208 void
 209 finish_file (void)
 210 {
 211   c_objc_common_finish_file ();
 212 }
 213
 214 #include "gtype-c.h"