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1 /* Declarations for varasm.h.
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2 Copyright (C) 2013-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #ifndef GCC_VARASM_H
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21 #define GCC_VARASM_H
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22
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23 /* The following global holds the "function name" for the code in the
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24 cold section of a function, if hot/cold function splitting is enabled
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25 and there was actually code that went into the cold section. A
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26 pseudo function name is needed for the cold section of code for some
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27 debugging tools that perform symbolization. */
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28 extern tree cold_function_name;
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29
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30 extern tree tree_output_constant_def (tree);
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31 extern void make_decl_rtl (tree);
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32 extern rtx make_decl_rtl_for_debug (tree);
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33 extern void make_decl_one_only (tree, tree);
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34 extern int supports_one_only (void);
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35 extern void resolve_unique_section (tree, int, int);
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36 extern void mark_referenced (tree);
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37 extern void mark_decl_referenced (tree);
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38 extern void notice_global_symbol (tree);
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39 extern void set_user_assembler_name (tree, const char *);
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40 extern void process_pending_assemble_externals (void);
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41 extern bool decl_replaceable_p (tree);
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42 extern bool decl_binds_to_current_def_p (const_tree);
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43 extern enum tls_model decl_default_tls_model (const_tree);
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44
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45 /* Declare DECL to be a weak symbol. */
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46 extern void declare_weak (tree);
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47
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48 /* Merge weak status. */
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49 extern void merge_weak (tree, tree);
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50
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51 /* Make one symbol an alias for another. */
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52 extern void assemble_alias (tree, tree);
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53
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54 /* Return nonzero if VALUE is a valid constant-valued expression
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55 for use in initializing a static variable; one that can be an
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56 element of a "constant" initializer.
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57
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58 Return null_pointer_node if the value is absolute;
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59 if it is relocatable, return the variable that determines the relocation.
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60 We assume that VALUE has been folded as much as possible;
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61 therefore, we do not need to check for such things as
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62 arithmetic-combinations of integers. */
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63 extern tree initializer_constant_valid_p (tree, tree, bool = false);
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64
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65 /* Return true if VALUE is a valid constant-valued expression
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66 for use in initializing a static bit-field; one that can be
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67 an element of a "constant" initializer. */
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68 extern bool initializer_constant_valid_for_bitfield_p (tree);
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69
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70 /* Whether a constructor CTOR is a valid static constant initializer if all
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71 its elements are. This used to be internal to initializer_constant_valid_p
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72 and has been exposed to let other functions like categorize_ctor_elements
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73 evaluate the property while walking a constructor for other purposes. */
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74 extern bool constructor_static_from_elts_p (const_tree);
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75
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76 extern void init_varasm_status (void);
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77
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78 extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
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79
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80 extern rtx assemble_trampoline_template (void);
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81
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82 #endif // GCC_VARASM_H
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