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_HANDLE_FILENAME
  49 #define LANG_HOOKS_HANDLE_FILENAME c_common_handle_filename
  50 #undef LANG_HOOKS_MISSING_ARGUMENT
  51 #define LANG_HOOKS_MISSING_ARGUMENT c_common_missing_argument
  52 #undef LANG_HOOKS_POST_OPTIONS
  53 #define LANG_HOOKS_POST_OPTIONS c_common_post_options
  54 #undef LANG_HOOKS_GET_ALIAS_SET
  55 #define LANG_HOOKS_GET_ALIAS_SET c_common_get_alias_set
  56 #undef LANG_HOOKS_SAFE_FROM_P
  57 #define LANG_HOOKS_SAFE_FROM_P c_safe_from_p
  58 #undef LANG_HOOKS_EXPAND_EXPR
  59 #define LANG_HOOKS_EXPAND_EXPR c_expand_expr
  60 #undef LANG_HOOKS_MARK_ADDRESSABLE
  61 #define LANG_HOOKS_MARK_ADDRESSABLE c_mark_addressable
  62 #undef LANG_HOOKS_PARSE_FILE
  63 #define LANG_HOOKS_PARSE_FILE c_common_parse_file
  64 #undef LANG_HOOKS_TRUTHVALUE_CONVERSION
  65 #define LANG_HOOKS_TRUTHVALUE_CONVERSION c_common_truthvalue_conversion
  66 #undef LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES
  67 #define LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES c_insert_default_attributes
  68 #undef LANG_HOOKS_FINISH_INCOMPLETE_DECL
  69 #define LANG_HOOKS_FINISH_INCOMPLETE_DECL c_finish_incomplete_decl
  70 #undef LANG_HOOKS_UNSAFE_FOR_REEVAL
  71 #define LANG_HOOKS_UNSAFE_FOR_REEVAL c_common_unsafe_for_reeval
  72 #undef LANG_HOOKS_STATICP
  73 #define LANG_HOOKS_STATICP c_staticp
  74 #undef LANG_HOOKS_NO_BODY_BLOCKS
  75 #define LANG_HOOKS_NO_BODY_BLOCKS true
  76 #undef LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL
  77 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
  78 #undef LANG_HOOKS_PRINT_IDENTIFIER
  79 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
  80 #undef LANG_HOOKS_FUNCTION_ENTER_NESTED
  81 #define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
  82 #undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
  83 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
  84 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
  85 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
  86
  87 /* Attribute hooks.  */
  88 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
  89 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
  90 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
  91 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
  92
  93 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  94 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  95   c_cannot_inline_tree_fn
  96 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  97 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  98   c_disregard_inline_limits
  99 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
 100 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
 101   anon_aggr_type_p
 102 #undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
 103 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
 104   c_convert_parm_for_inlining
 105 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
 106 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
 107
 108 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
 109 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
 110
 111 #undef LANG_HOOKS_TYPE_FOR_MODE
 112 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
 113 #undef LANG_HOOKS_TYPE_FOR_SIZE
 114 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
 115 #undef LANG_HOOKS_SIGNED_TYPE
 116 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
 117 #undef LANG_HOOKS_UNSIGNED_TYPE
 118 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
 119 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
 120 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
 121 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
 122 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
 123 #undef LANG_HOOKS_TYPE_PROMOTES_TO
 124 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
 125
 126 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
 127
 128 /* Each front end provides its own.  */
 129 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
 130
 131 /* Tree code classes.  */
 132
 133 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
 134
 135 const char tree_code_type[] = {
 136 #include "tree.def"
 137   'x',
 138 #include "c-common.def"
 139 };
 140 #undef DEFTREECODE
 141
 142 /* Table indexed by tree code giving number of expression
 143    operands beyond the fixed part of the node structure.
 144    Not used for types or decls.  */
 145
 146 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
 147
 148 const unsigned char tree_code_length[] = {
 149 #include "tree.def"
 150   0,
 151 #include "c-common.def"
 152 };
 153 #undef DEFTREECODE
 154
 155 /* Names of tree components.
 156    Used for printing out the tree and error messages.  */
 157 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
 158
 159 const char *const tree_code_name[] = {
 160 #include "tree.def"
 161   "@@dummy",
 162 #include "c-common.def"
 163 };
 164 #undef DEFTREECODE
 165
 166 /* Used by c-lex.c, but only for objc.  */
 167
 168 tree
 169 lookup_interface (tree arg ATTRIBUTE_UNUSED)
 170 {
 171   return 0;
 172 }
 173
 174 tree
 175 is_class_name (tree arg ATTRIBUTE_UNUSED)
 176 {
 177   return 0;
 178 }
 179
 180 tree
 181 objc_is_id (tree arg ATTRIBUTE_UNUSED)
 182 {
 183   return 0;
 184 }
 185
 186 void
 187 objc_check_decl (tree decl ATTRIBUTE_UNUSED)
 188 {
 189 }
 190
 191 int
 192 objc_comptypes (tree lhs ATTRIBUTE_UNUSED, tree rhs ATTRIBUTE_UNUSED,
 193                 int reflexive ATTRIBUTE_UNUSED)
 194 {
 195   return -1;
 196 }
 197
 198 tree
 199 objc_message_selector (void)
 200 {
 201   return 0;
 202 }
 203
 204 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 205
 206 tree
 207 lookup_objc_ivar (tree id ATTRIBUTE_UNUSED)
 208 {
 209   return 0;
 210 }
 211
 212 void
 213 finish_file (void)
 214 {
 215   c_objc_common_finish_file ();
 216 }
 217
 218 #include "gtype-c.h"