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_INLINING_ESTIMATE_NUM_INSNS
 106 #define LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS c_estimate_num_insns
 107 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
 108 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
 109
 110 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
 111 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
 112
 113 #undef LANG_HOOKS_TYPE_FOR_MODE
 114 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
 115 #undef LANG_HOOKS_TYPE_FOR_SIZE
 116 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
 117 #undef LANG_HOOKS_SIGNED_TYPE
 118 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
 119 #undef LANG_HOOKS_UNSIGNED_TYPE
 120 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
 121 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
 122 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
 123 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
 124 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
 125 #undef LANG_HOOKS_TYPE_PROMOTES_TO
 126 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
 127
 128 #undef LANG_HOOKS_WRITE_GLOBALS
 129 #define LANG_HOOKS_WRITE_GLOBALS c_write_global_declarations
 130
 131 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
 132
 133 /* Each front end provides its own.  */
 134 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
 135
 136 /* Tree code classes.  */
 137
 138 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
 139
 140 const char tree_code_type[] = {
 141 #include "tree.def"
 142   'x',
 143 #include "c-common.def"
 144 };
 145 #undef DEFTREECODE
 146
 147 /* Table indexed by tree code giving number of expression
 148    operands beyond the fixed part of the node structure.
 149    Not used for types or decls.  */
 150
 151 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
 152
 153 const unsigned char tree_code_length[] = {
 154 #include "tree.def"
 155   0,
 156 #include "c-common.def"
 157 };
 158 #undef DEFTREECODE
 159
 160 /* Names of tree components.
 161    Used for printing out the tree and error messages.  */
 162 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
 163
 164 const char *const tree_code_name[] = {
 165 #include "tree.def"
 166   "@@dummy",
 167 #include "c-common.def"
 168 };
 169 #undef DEFTREECODE
 170
 171 /* Used by c-lex.c, but only for objc.  */
 172
 173 tree
 174 lookup_interface (tree arg ATTRIBUTE_UNUSED)
 175 {
 176   return 0;
 177 }
 178
 179 tree
 180 is_class_name (tree arg ATTRIBUTE_UNUSED)
 181 {
 182   return 0;
 183 }
 184
 185 tree
 186 objc_is_id (tree arg ATTRIBUTE_UNUSED)
 187 {
 188   return 0;
 189 }
 190
 191 void
 192 objc_check_decl (tree decl ATTRIBUTE_UNUSED)
 193 {
 194 }
 195
 196 int
 197 objc_comptypes (tree lhs ATTRIBUTE_UNUSED, tree rhs ATTRIBUTE_UNUSED,
 198                 int reflexive ATTRIBUTE_UNUSED)
 199 {
 200   return -1;
 201 }
 202
 203 tree
 204 objc_message_selector (void)
 205 {
 206   return 0;
 207 }
 208
 209 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 210
 211 tree
 212 lookup_objc_ivar (tree id ATTRIBUTE_UNUSED)
 213 {
 214   return 0;
 215 }
 216
 217 void
 218 finish_file (void)
 219 {
 220   c_objc_common_finish_file ();
 221 }
 222
 223 #include "gtype-c.h"