gcc/varasm.h

   1 /* Declarations for varasm.h.
   2    Copyright (C) 2013-2014 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef GCC_VARASM_H
  21 #define GCC_VARASM_H
  22
  23 extern tree tree_output_constant_def (tree);
  24 extern void make_decl_rtl (tree);
  25 extern rtx make_decl_rtl_for_debug (tree);
  26 extern void make_decl_one_only (tree, tree);
  27 extern int supports_one_only (void);
  28 extern void resolve_unique_section (tree, int, int);
  29 extern void mark_referenced (tree);
  30 extern void mark_decl_referenced (tree);
  31 extern void notice_global_symbol (tree);
  32 extern void set_user_assembler_name (tree, const char *);
  33 extern void process_pending_assemble_externals (void);
  34 extern bool decl_replaceable_p (tree);
  35 extern bool decl_binds_to_current_def_p (tree);
  36 extern enum tls_model decl_default_tls_model (const_tree);
  37
  38 /* Declare DECL to be a weak symbol.  */
  39 extern void declare_weak (tree);
  40
  41 /* Merge weak status.  */
  42 extern void merge_weak (tree, tree);
  43
  44 /* Make one symbol an alias for another.  */
  45 extern void assemble_alias (tree, tree);
  46
  47 /* Return nonzero if VALUE is a valid constant-valued expression
  48    for use in initializing a static variable; one that can be an
  49    element of a "constant" initializer.
  50
  51    Return null_pointer_node if the value is absolute;
  52    if it is relocatable, return the variable that determines the relocation.
  53    We assume that VALUE has been folded as much as possible;
  54    therefore, we do not need to check for such things as
  55    arithmetic-combinations of integers.  */
  56 extern tree initializer_constant_valid_p (tree, tree);
  57
  58 /* Return true if VALUE is a valid constant-valued expression
  59    for use in initializing a static bit-field; one that can be
  60    an element of a "constant" initializer.  */
  61 extern bool initializer_constant_valid_for_bitfield_p (tree);
  62
  63 /* Whether a constructor CTOR is a valid static constant initializer if all
  64    its elements are.  This used to be internal to initializer_constant_valid_p
  65    and has been exposed to let other functions like categorize_ctor_elements
  66    evaluate the property while walking a constructor for other purposes.  */
  67 extern bool constructor_static_from_elts_p (const_tree);
  68
  69 #endif  // GCC_VARASM_H