gcc/c-lang.c

   1 /* Language-specific hook definitions for C front end.
   2    Copyright (C) 1991, 1995, 1997, 1998,
   3    1999, 2000, 2001 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 static void c_init_options PARAMS ((void));
  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_init_options
  46 #undef LANG_HOOKS_DECODE_OPTION
  47 #define LANG_HOOKS_DECODE_OPTION c_common_decode_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_WARN_UNUSED_GLOBAL_DECL
  71 #define LANG_HOOKS_WARN_UNUSED_GLOBAL_DECL c_warn_unused_global_decl
  72 #undef LANG_HOOKS_PRINT_IDENTIFIER
  73 #define LANG_HOOKS_PRINT_IDENTIFIER c_print_identifier
  74 #undef LANG_HOOKS_FUNCTION_ENTER_NESTED
  75 #define LANG_HOOKS_FUNCTION_ENTER_NESTED c_push_function_context
  76 #undef LANG_HOOKS_FUNCTION_LEAVE_NESTED
  77 #define LANG_HOOKS_FUNCTION_LEAVE_NESTED c_pop_function_context
  78 #undef LANG_HOOKS_DUP_LANG_SPECIFIC_DECL
  79 #define LANG_HOOKS_DUP_LANG_SPECIFIC_DECL c_dup_lang_specific_decl
  80
  81 /* Attribute hooks.  */
  82 #undef LANG_HOOKS_COMMON_ATTRIBUTE_TABLE
  83 #define LANG_HOOKS_COMMON_ATTRIBUTE_TABLE c_common_attribute_table
  84 #undef LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE
  85 #define LANG_HOOKS_FORMAT_ATTRIBUTE_TABLE c_common_format_attribute_table
  86
  87 #undef LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN
  88 #define LANG_HOOKS_TREE_INLINING_CANNOT_INLINE_TREE_FN \
  89   c_cannot_inline_tree_fn
  90 #undef LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS
  91 #define LANG_HOOKS_TREE_INLINING_DISREGARD_INLINE_LIMITS \
  92   c_disregard_inline_limits
  93 #undef LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P
  94 #define LANG_HOOKS_TREE_INLINING_ANON_AGGR_TYPE_P \
  95   anon_aggr_type_p
  96 #undef LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING
  97 #define LANG_HOOKS_TREE_INLINING_CONVERT_PARM_FOR_INLINING \
  98   c_convert_parm_for_inlining
  99 #undef LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN
 100 #define LANG_HOOKS_TREE_DUMP_DUMP_TREE_FN c_dump_tree
 101
 102 #undef LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION
 103 #define LANG_HOOKS_CALLGRAPH_EXPAND_FUNCTION c_expand_body
 104
 105 #undef LANG_HOOKS_TYPE_FOR_MODE
 106 #define LANG_HOOKS_TYPE_FOR_MODE c_common_type_for_mode
 107 #undef LANG_HOOKS_TYPE_FOR_SIZE
 108 #define LANG_HOOKS_TYPE_FOR_SIZE c_common_type_for_size
 109 #undef LANG_HOOKS_SIGNED_TYPE
 110 #define LANG_HOOKS_SIGNED_TYPE c_common_signed_type
 111 #undef LANG_HOOKS_UNSIGNED_TYPE
 112 #define LANG_HOOKS_UNSIGNED_TYPE c_common_unsigned_type
 113 #undef LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE
 114 #define LANG_HOOKS_SIGNED_OR_UNSIGNED_TYPE c_common_signed_or_unsigned_type
 115 #undef LANG_HOOKS_INCOMPLETE_TYPE_ERROR
 116 #define LANG_HOOKS_INCOMPLETE_TYPE_ERROR c_incomplete_type_error
 117 #undef LANG_HOOKS_TYPE_PROMOTES_TO
 118 #define LANG_HOOKS_TYPE_PROMOTES_TO c_type_promotes_to
 119
 120 /* ### When changing hooks, consider if ObjC needs changing too!! ### */
 121
 122 /* Each front end provides its own.  */
 123 const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
 124
 125 /* Tree code classes.  */
 126
 127 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
 128
 129 const char tree_code_type[] = {
 130 #include "tree.def"
 131   'x',
 132 #include "c-common.def"
 133 };
 134 #undef DEFTREECODE
 135
 136 /* Table indexed by tree code giving number of expression
 137    operands beyond the fixed part of the node structure.
 138    Not used for types or decls.  */
 139
 140 #define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
 141
 142 const unsigned char tree_code_length[] = {
 143 #include "tree.def"
 144   0,
 145 #include "c-common.def"
 146 };
 147 #undef DEFTREECODE
 148
 149 /* Names of tree components.
 150    Used for printing out the tree and error messages.  */
 151 #define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
 152
 153 const char *const tree_code_name[] = {
 154 #include "tree.def"
 155   "@@dummy",
 156 #include "c-common.def"
 157 };
 158 #undef DEFTREECODE
 159
 160 static void
 161 c_init_options ()
 162 {
 163   c_common_init_options (clk_c);
 164 }
 165
 166 /* Used by c-lex.c, but only for objc.  */
 167
 168 tree
 169 lookup_interface (arg)
 170      tree arg ATTRIBUTE_UNUSED;
 171 {
 172   return 0;
 173 }
 174
 175 tree
 176 is_class_name (arg)
 177     tree arg ATTRIBUTE_UNUSED;
 178 {
 179   return 0;
 180 }
 181
 182 tree
 183 objc_is_id (arg)
 184     tree arg ATTRIBUTE_UNUSED;
 185 {
 186   return 0;
 187 }
 188
 189 void
 190 objc_check_decl (decl)
 191      tree decl ATTRIBUTE_UNUSED;
 192 {
 193 }
 194
 195 int
 196 objc_comptypes (lhs, rhs, reflexive)
 197      tree lhs ATTRIBUTE_UNUSED;
 198      tree rhs ATTRIBUTE_UNUSED;
 199      int reflexive ATTRIBUTE_UNUSED;
 200 {
 201   return -1;
 202 }
 203
 204 tree
 205 objc_message_selector ()
 206 {
 207   return 0;
 208 }
 209
 210 /* Used by c-typeck.c (build_external_ref), but only for objc.  */
 211
 212 tree
 213 lookup_objc_ivar (id)
 214      tree id ATTRIBUTE_UNUSED;
 215 {
 216   return 0;
 217 }
 218
 219 void
 220 finish_file ()
 221 {
 222   c_objc_common_finish_file ();
 223 }
 224
 225 #include "gtype-c.h"