gcc/varasm.h

   1 /* Declarations for varasm.h.
   2    Copyright (C) 2013-2021 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 /* The following global holds the "function name" for the code in the
  24    cold section of a function, if hot/cold function splitting is enabled
  25    and there was actually code that went into the cold section.  A
  26    pseudo function name is needed for the cold section of code for some
  27    debugging tools that perform symbolization. */
  28 extern tree cold_function_name;
  29
  30 extern tree tree_output_constant_def (tree);
  31 extern void make_decl_rtl (tree);
  32 extern rtx make_decl_rtl_for_debug (tree);
  33 extern void make_decl_one_only (tree, tree);
  34 extern int supports_one_only (void);
  35 extern void resolve_unique_section (tree, int, int);
  36 extern void mark_referenced (tree);
  37 extern void mark_decl_referenced (tree);
  38 extern void notice_global_symbol (tree);
  39 extern void set_user_assembler_name (tree, const char *);
  40 extern void process_pending_assemble_externals (void);
  41 extern bool decl_replaceable_p (tree);
  42 extern bool decl_binds_to_current_def_p (const_tree);
  43 extern enum tls_model decl_default_tls_model (const_tree);
  44
  45 /* Declare DECL to be a weak symbol.  */
  46 extern void declare_weak (tree);
  47
  48 /* Merge weak status.  */
  49 extern void merge_weak (tree, tree);
  50
  51 /* Make one symbol an alias for another.  */
  52 extern void assemble_alias (tree, tree);
  53
  54 /* Return nonzero if VALUE is a valid constant-valued expression
  55    for use in initializing a static variable; one that can be an
  56    element of a "constant" initializer.
  57
  58    Return null_pointer_node if the value is absolute;
  59    if it is relocatable, return the variable that determines the relocation.
  60    We assume that VALUE has been folded as much as possible;
  61    therefore, we do not need to check for such things as
  62    arithmetic-combinations of integers.  */
  63 extern tree initializer_constant_valid_p (tree, tree, bool = false);
  64
  65 /* Return true if VALUE is a valid constant-valued expression
  66    for use in initializing a static bit-field; one that can be
  67    an element of a "constant" initializer.  */
  68 extern bool initializer_constant_valid_for_bitfield_p (tree);
  69
  70 /* Whether a constructor CTOR is a valid static constant initializer if all
  71    its elements are.  This used to be internal to initializer_constant_valid_p
  72    and has been exposed to let other functions like categorize_ctor_elements
  73    evaluate the property while walking a constructor for other purposes.  */
  74 extern bool constructor_static_from_elts_p (const_tree);
  75
  76 extern void init_varasm_status (void);
  77
  78 extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
  79
  80 extern rtx assemble_trampoline_template (void);
  81
  82 #endif  // GCC_VARASM_H