1 /* Declarations for varasm.h. 2 Copyright (C) 2013-2020 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 83