1 /* Declarations for insn-output.c and other code to write to asm_out_file. 2 These functions are defined in final.c, and varasm.c. 3 Copyright (C) 1987-2019 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 3, 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 COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_OUTPUT_H 22 #define GCC_OUTPUT_H 23 24 /* Initialize data in final at the beginning of a compilation. */ 25 extern void init_final (const char *); 26 27 /* Enable APP processing of subsequent output. 28 Used before the output from an `asm' statement. */ 29 extern void app_enable (void); 30 31 /* Disable APP processing of subsequent output. 32 Called from varasm.c before most kinds of output. */ 33 extern void app_disable (void); 34 35 /* Return the number of slots filled in the current 36 delayed branch sequence (we don't count the insn needing the 37 delay slot). Zero if not in a delayed branch sequence. */ 38 extern int dbr_sequence_length (void); 39 40 /* Indicate that branch shortening hasn't yet been done. */ 41 extern void init_insn_lengths (void); 42 43 /* Obtain the current length of an insn. If branch shortening has been done, 44 get its actual length. Otherwise, get its maximum length. */ 45 extern int get_attr_length (rtx_insn *); 46 47 /* Obtain the current length of an insn. If branch shortening has been done, 48 get its actual length. Otherwise, get its minimum length. */ 49 extern int get_attr_min_length (rtx_insn *); 50 51 /* Make a pass over all insns and compute their actual lengths by shortening 52 any branches of variable length if possible. */ 53 extern void shorten_branches (rtx_insn *); 54 55 const char *get_some_local_dynamic_name (); 56 57 /* Output assembler code for the start of a function, 58 and initialize some of the variables in this file 59 for the new function. The label for the function and associated 60 assembler pseudo-ops have already been output in 61 `assemble_start_function'. */ 62 extern void final_start_function (rtx_insn *, FILE *, int); 63 64 /* Output assembler code for the end of a function. 65 For clarity, args are same as those of `final_start_function' 66 even though not all of them are needed. */ 67 extern void final_end_function (void); 68 69 /* Output assembler code for some insns: all or part of a function. */ 70 extern void final (rtx_insn *, FILE *, int); 71 72 /* The final scan for one insn, INSN. Args are same as in `final', except 73 that INSN is the insn being scanned. Value returned is the next insn to 74 be scanned. */ 75 extern rtx_insn *final_scan_insn (rtx_insn *, FILE *, int, int, int *); 76 77 /* Replace a SUBREG with a REG or a MEM, based on the thing it is a 78 subreg of. */ 79 extern rtx alter_subreg (rtx *, bool); 80 81 /* Print an operand using machine-dependent assembler syntax. */ 82 extern void output_operand (rtx, int); 83 84 /* Report inconsistency between the assembler template and the operands. 85 In an `asm', it's the user's fault; otherwise, the compiler's fault. */ 86 extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1; 87 88 /* Output a string of assembler code, substituting insn operands. 89 Defined in final.c. */ 90 extern void output_asm_insn (const char *, rtx *); 91 92 /* Compute a worst-case reference address of a branch so that it 93 can be safely used in the presence of aligned labels. 94 Defined in final.c. */ 95 extern int insn_current_reference_address (rtx_insn *); 96 97 /* Find the alignment associated with a CODE_LABEL. 98 Defined in final.c. */ 99 extern align_flags label_to_alignment (rtx); 100 101 /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ 102 extern void output_asm_label (rtx); 103 104 /* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */ 105 extern void mark_symbol_refs_as_used (rtx); 106 107 /* Print a memory reference operand for address X with access mode MODE 108 using machine-dependent assembler syntax. */ 109 extern void output_address (machine_mode, rtx); 110 111 /* Print an integer constant expression in assembler syntax. 112 Addition and subtraction are the only arithmetic 113 that may appear in these expressions. */ 114 extern void output_addr_const (FILE *, rtx); 115 116 /* Output a string of assembler code, substituting numbers, strings 117 and fixed syntactic prefixes. */ 118 #if GCC_VERSION >= 3004 119 #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m) 120 #else 121 #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m) 122 #endif 123 124 extern void fprint_whex (FILE *, unsigned HOST_WIDE_INT); 125 extern void fprint_ul (FILE *, unsigned long); 126 extern int sprint_ul (char *, unsigned long); 127 128 extern void asm_fprintf (FILE *file, const char *p, ...) 129 ATTRIBUTE_ASM_FPRINTF(2, 3); 130 131 /* Return nonzero if this function has no function calls. */ 132 extern int leaf_function_p (void); 133 134 /* Return 1 if branch is a forward branch. 135 Uses insn_shuid array, so it works only in the final pass. May be used by 136 output templates to add branch prediction hints, for example. */ 137 extern int final_forward_branch_p (rtx_insn *); 138 139 /* Return 1 if this function uses only the registers that can be 140 safely renumbered. */ 141 extern int only_leaf_regs_used (void); 142 143 /* Scan IN_RTX and its subexpressions, and renumber all regs into those 144 available in leaf functions. */ 145 extern void leaf_renumber_regs_insn (rtx); 146 147 /* Locate the proper template for the given insn-code. */ 148 extern const char *get_insn_template (int, rtx_insn *); 149 150 /* Functions in varasm.c. */ 151 152 /* Emit any pending weak declarations. */ 153 extern void weak_finish (void); 154 155 /* Decode an `asm' spec for a declaration as a register name. 156 Return the register number, or -1 if nothing specified, 157 or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, 158 or -3 if ASMSPEC is `cc' and is not recognized, 159 or -4 if ASMSPEC is `memory' and is not recognized. 160 Accept an exact spelling or a decimal number. 161 Prefixes such as % are optional. */ 162 extern int decode_reg_name (const char *); 163 164 /* Similar to decode_reg_name, but takes an extra parameter that is a 165 pointer to the number of (internal) registers described by the 166 external name. */ 167 extern int decode_reg_name_and_count (const char *, int *); 168 169 extern void do_assemble_alias (tree, tree); 170 171 extern void default_assemble_visibility (tree, int); 172 173 /* Output a string of literal assembler code 174 for an `asm' keyword used between functions. */ 175 extern void assemble_asm (tree); 176 177 /* Get the function's name from a decl, as described by its RTL. */ 178 extern const char *get_fnname_from_decl (tree); 179 180 /* Output assembler code for the constant pool of a function and associated 181 with defining the name of the function. DECL describes the function. 182 NAME is the function's name. For the constant pool, we use the current 183 constant pool data. */ 184 extern void assemble_start_function (tree, const char *); 185 186 /* Output assembler code associated with defining the size of the 187 function. DECL describes the function. NAME is the function's name. */ 188 extern void assemble_end_function (tree, const char *); 189 190 /* Assemble everything that is needed for a variable or function declaration. 191 Not used for automatic variables, and not used for function definitions. 192 Should not be called for variables of incomplete structure type. 193 194 TOP_LEVEL is nonzero if this variable has file scope. 195 AT_END is nonzero if this is the special handling, at end of compilation, 196 to define things that have had only tentative definitions. 197 DONT_OUTPUT_DATA if nonzero means don't actually output the 198 initial value (that will be done by the caller). */ 199 extern void assemble_variable (tree, int, int, int); 200 201 /* Put the vtable verification constructor initialization function 202 into the preinit array. */ 203 extern void assemble_vtv_preinit_initializer (tree); 204 205 /* Assemble everything that is needed for a variable declaration that has 206 no definition in the current translation unit. */ 207 extern void assemble_undefined_decl (tree); 208 209 /* Compute the alignment of variable specified by DECL. 210 DONT_OUTPUT_DATA is from assemble_variable. */ 211 extern void align_variable (tree decl, bool dont_output_data); 212 213 /* Queue for outputting something to declare an external symbol to the 214 assembler. (Most assemblers don't need this, so we normally output 215 nothing.) Do nothing if DECL is not external. */ 216 extern void assemble_external (tree); 217 218 /* Assemble code to leave SIZE bytes of zeros. */ 219 extern void assemble_zeros (unsigned HOST_WIDE_INT); 220 221 /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */ 222 extern void assemble_align (unsigned int); 223 224 /* Assemble a string constant with the specified C string as contents. */ 225 extern void assemble_string (const char *, int); 226 227 /* Similar, for calling a library function FUN. */ 228 extern void assemble_external_libcall (rtx); 229 230 /* Assemble a label named NAME. */ 231 extern void assemble_label (FILE *, const char *); 232 233 /* Output to FILE (an assembly file) a reference to NAME. If NAME 234 starts with a *, the rest of NAME is output verbatim. Otherwise 235 NAME is transformed in a target-specific way (usually by the 236 addition of an underscore). */ 237 extern void assemble_name_raw (FILE *, const char *); 238 239 /* Return NAME that should actually be emitted, looking through 240 transparent aliases. If NAME refers to an entity that is also 241 represented as a tree (like a function or variable), mark the entity 242 as referenced. */ 243 extern const char *assemble_name_resolve (const char *); 244 245 /* Like assemble_name_raw, but should be used when NAME might refer to 246 an entity that is also represented as a tree (like a function or 247 variable). If NAME does refer to such an entity, that entity will 248 be marked as referenced. */ 249 extern void assemble_name (FILE *, const char *); 250 251 /* Return the assembler directive for creating a given kind of integer 252 object. SIZE is the number of bytes in the object and ALIGNED_P 253 indicates whether it is known to be aligned. Return NULL if the 254 assembly dialect has no such directive. 255 256 The returned string should be printed at the start of a new line and 257 be followed immediately by the object's initial value. */ 258 extern const char *integer_asm_op (int, int); 259 260 /* Use directive OP to assemble an integer object X. Print OP at the 261 start of the line, followed immediately by the value of X. */ 262 extern void assemble_integer_with_op (const char *, rtx); 263 264 /* The default implementation of the asm_out.integer target hook. */ 265 extern bool default_assemble_integer (rtx, unsigned int, int); 266 267 /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is 268 the alignment of the integer in bits. Return 1 if we were able to output 269 the constant, otherwise 0. If FORCE is nonzero the constant must 270 be outputable. */ 271 extern bool assemble_integer (rtx, unsigned, unsigned, int); 272 273 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL) 274 is NULL. */ 275 extern section *get_named_text_section (tree, const char *, const char *); 276 277 /* An interface to assemble_integer for the common case in which a value is 278 fully aligned and must be printed. VALUE is the value of the integer 279 object and SIZE is the number of bytes it contains. */ 280 #define assemble_aligned_integer(SIZE, VALUE) \ 281 assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) 282 283 /* Assemble the floating-point constant D into an object of size MODE. ALIGN 284 is the alignment of the constant in bits. If REVERSE is true, D is output 285 in reverse storage order. */ 286 extern void assemble_real (REAL_VALUE_TYPE, scalar_float_mode, unsigned, 287 bool = false); 288 289 /* Write the address of the entity given by SYMBOL to SEC. */ 290 extern void assemble_addr_to_section (rtx, section *); 291 292 /* Return TRUE if and only if the constant pool has no entries. Note 293 that even entries we might end up choosing not to emit are counted 294 here, so there is the potential for missed optimizations. */ 295 extern bool constant_pool_empty_p (void); 296 297 extern rtx_insn *peephole (rtx_insn *); 298 299 extern void output_shared_constant_pool (void); 300 301 extern void output_object_blocks (void); 302 303 extern void output_quoted_string (FILE *, const char *); 304 305 /* When outputting delayed branch sequences, this rtx holds the 306 sequence being output. It is null when no delayed branch 307 sequence is being output, so it can be used as a test in the 308 insn output code. 309 310 This variable is defined in final.c. */ 311 extern rtx_sequence *final_sequence; 312 313 /* File in which assembler code is being written. */ 314 315 #ifdef BUFSIZ 316 extern FILE *asm_out_file; 317 #endif 318 319 /* The first global object in the file. */ 320 extern const char *first_global_object_name; 321 322 /* The first weak object in the file. */ 323 extern const char *weak_global_object_name; 324 325 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ 326 extern rtx current_insn_predicate; 327 328 /* Last insn processed by final_scan_insn. */ 329 extern rtx_insn *current_output_insn; 330 331 /* Nonzero while outputting an `asm' with operands. 332 This means that inconsistencies are the user's fault, so don't die. 333 The precise value is the insn being output, to pass to error_for_asm. */ 334 extern const rtx_insn *this_is_asm_operands; 335 336 /* Carry information from ASM_DECLARE_OBJECT_NAME 337 to ASM_FINISH_DECLARE_OBJECT. */ 338 extern int size_directive_output; 339 extern tree last_assemble_variable_decl; 340 341 extern bool first_function_block_is_cold; 342 343 /* Decide whether DECL needs to be in a writable section. 344 RELOC is the same as for SELECT_SECTION. */ 345 extern bool decl_readonly_section (const_tree, int); 346 347 /* This can be used to compute RELOC for the function above, when 348 given a constant expression. */ 349 extern int compute_reloc_for_constant (tree); 350 351 /* User label prefix in effect for this compilation. */ 352 extern const char *user_label_prefix; 353 354 /* Default target function prologue and epilogue assembler output. */ 355 extern void default_function_pro_epilogue (FILE *); 356 357 /* Default target function switched text sections. */ 358 extern void default_function_switched_text_sections (FILE *, tree, bool); 359 360 /* Default target hook that outputs nothing to a stream. */ 361 extern void no_asm_to_stream (FILE *); 362 363 /* Flags controlling properties of a section. */ 364 #define SECTION_ENTSIZE 0x000ff /* entity size in section */ 365 #define SECTION_CODE 0x00100 /* contains code */ 366 #define SECTION_WRITE 0x00200 /* data is writable */ 367 #define SECTION_DEBUG 0x00400 /* contains debug data */ 368 #define SECTION_LINKONCE 0x00800 /* is linkonce */ 369 #define SECTION_SMALL 0x01000 /* contains "small data" */ 370 #define SECTION_BSS 0x02000 /* contains zeros only */ 371 #define SECTION_FORGET 0x04000 /* forget that we've entered the section */ 372 #define SECTION_MERGE 0x08000 /* contains mergeable data */ 373 #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without 374 embedded zeros */ 375 #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */ 376 #define SECTION_TLS 0x40000 /* contains thread-local storage */ 377 #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ 378 #define SECTION_DECLARED 0x100000 /* section has been used */ 379 #define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */ 380 #define SECTION_COMMON 0x800000 /* contains common data */ 381 #define SECTION_RELRO 0x1000000 /* data is readonly after relocation processing */ 382 #define SECTION_EXCLUDE 0x2000000 /* discarded by the linker */ 383 #define SECTION_MACH_DEP 0x4000000 /* subsequent bits reserved for target */ 384 385 /* This SECTION_STYLE is used for unnamed sections that we can switch 386 to using a special assembler directive. */ 387 #define SECTION_UNNAMED 0x000000 388 389 /* This SECTION_STYLE is used for named sections that we can switch 390 to using a general section directive. */ 391 #define SECTION_NAMED 0x200000 392 393 /* This SECTION_STYLE is used for sections that we cannot switch to at 394 all. The choice of section is implied by the directive that we use 395 to declare the object. */ 396 #define SECTION_NOSWITCH 0x400000 397 398 /* A helper function for default_elf_select_section and 399 default_elf_unique_section. Categorizes the DECL. */ 400 401 enum section_category 402 { 403 SECCAT_TEXT, 404 405 SECCAT_RODATA, 406 SECCAT_RODATA_MERGE_STR, 407 SECCAT_RODATA_MERGE_STR_INIT, 408 SECCAT_RODATA_MERGE_CONST, 409 SECCAT_SRODATA, 410 411 SECCAT_DATA, 412 413 /* To optimize loading of shared programs, define following subsections 414 of data section: 415 _REL Contains data that has relocations, so they get grouped 416 together and dynamic linker will visit fewer pages in memory. 417 _RO Contains data that is otherwise read-only. This is useful 418 with prelinking as most relocations won't be dynamically 419 linked and thus stay read only. 420 _LOCAL Marks data containing relocations only to local objects. 421 These relocations will get fully resolved by prelinking. */ 422 SECCAT_DATA_REL, 423 SECCAT_DATA_REL_LOCAL, 424 SECCAT_DATA_REL_RO, 425 SECCAT_DATA_REL_RO_LOCAL, 426 427 SECCAT_SDATA, 428 SECCAT_TDATA, 429 430 SECCAT_BSS, 431 SECCAT_SBSS, 432 SECCAT_TBSS 433 }; 434 435 /* Information that is provided by all instances of the section type. */ 436 struct GTY(()) section_common { 437 /* The set of SECTION_* flags that apply to this section. */ 438 unsigned int flags; 439 }; 440 441 /* Information about a SECTION_NAMED section. */ 442 struct GTY(()) named_section { 443 struct section_common common; 444 445 /* The name of the section. */ 446 const char *name; 447 448 /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the 449 section is associated. */ 450 tree decl; 451 }; 452 453 /* A callback that writes the assembly code for switching to an unnamed 454 section. The argument provides callback-specific data. */ 455 typedef void (*unnamed_section_callback) (const void *); 456 457 /* Information about a SECTION_UNNAMED section. */ 458 struct GTY(()) unnamed_section { 459 struct section_common common; 460 461 /* The callback used to switch to the section, and the data that 462 should be passed to the callback. */ 463 unnamed_section_callback GTY ((skip)) callback; 464 const void *GTY ((skip)) data; 465 466 /* The next entry in the chain of unnamed sections. */ 467 section *next; 468 }; 469 470 /* A callback that writes the assembly code for a decl in a 471 SECTION_NOSWITCH section. DECL is the decl that should be assembled 472 and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl 473 in bytes and ROUNDED is that size rounded up to the next 474 BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary. 475 476 Return true if the callback used DECL_ALIGN to set the object's 477 alignment. A false return value implies that we are relying 478 on the rounded size to align the decl. */ 479 typedef bool (*noswitch_section_callback) (tree decl, const char *name, 480 unsigned HOST_WIDE_INT size, 481 unsigned HOST_WIDE_INT rounded); 482 483 /* Information about a SECTION_NOSWITCH section. */ 484 struct GTY(()) noswitch_section { 485 struct section_common common; 486 487 /* The callback used to assemble decls in this section. */ 488 noswitch_section_callback GTY ((skip)) callback; 489 }; 490 491 /* Information about a section, which may be named or unnamed. */ 492 union GTY ((desc ("SECTION_STYLE (&(%h))"), for_user)) section { 493 struct section_common GTY ((skip)) common; 494 struct named_section GTY ((tag ("SECTION_NAMED"))) named; 495 struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed; 496 struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch; 497 }; 498 499 /* Return the style of section SECT. */ 500 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK) 501 502 struct object_block; 503 504 /* Special well-known sections. */ 505 extern GTY(()) section *text_section; 506 extern GTY(()) section *data_section; 507 extern GTY(()) section *readonly_data_section; 508 extern GTY(()) section *sdata_section; 509 extern GTY(()) section *ctors_section; 510 extern GTY(()) section *dtors_section; 511 extern GTY(()) section *bss_section; 512 extern GTY(()) section *sbss_section; 513 extern GTY(()) section *exception_section; 514 extern GTY(()) section *eh_frame_section; 515 extern GTY(()) section *tls_comm_section; 516 extern GTY(()) section *comm_section; 517 extern GTY(()) section *lcomm_section; 518 extern GTY(()) section *bss_noswitch_section; 519 520 extern GTY(()) section *in_section; 521 extern GTY(()) bool in_cold_section_p; 522 523 extern section *get_unnamed_section (unsigned int, void (*) (const void *), 524 const void *); 525 extern section *get_section (const char *, unsigned int, tree); 526 extern section *get_named_section (tree, const char *, int); 527 extern section *get_variable_section (tree, bool); 528 extern void place_block_symbol (rtx); 529 extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, 530 enum tls_model); 531 extern section *mergeable_constant_section (machine_mode, 532 unsigned HOST_WIDE_INT, 533 unsigned int); 534 extern section *function_section (tree); 535 extern section *unlikely_text_section (void); 536 extern section *current_function_section (void); 537 extern void switch_to_other_text_partition (void); 538 539 /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if 540 not) section for PRIORITY. */ 541 extern section *get_cdtor_priority_section (int, bool); 542 543 extern bool unlikely_text_section_p (section *); 544 extern void switch_to_section (section *); 545 extern void output_section_asm_op (const void *); 546 547 extern void record_tm_clone_pair (tree, tree); 548 extern void finish_tm_clone_pairs (void); 549 extern tree get_tm_clone_pair (tree); 550 551 extern void default_asm_output_source_filename (FILE *, const char *); 552 extern void output_file_directive (FILE *, const char *); 553 554 extern unsigned int default_section_type_flags (tree, const char *, int); 555 556 extern bool have_global_bss_p (void); 557 extern bool bss_initializer_p (const_tree, bool = false); 558 559 extern void default_no_named_section (const char *, unsigned int, tree); 560 extern void default_elf_asm_named_section (const char *, unsigned int, tree); 561 extern enum section_category categorize_decl_for_section (const_tree, int); 562 extern void default_coff_asm_named_section (const char *, unsigned int, tree); 563 extern void default_pe_asm_named_section (const char *, unsigned int, tree); 564 565 extern void default_named_section_asm_out_destructor (rtx, int); 566 extern void default_dtor_section_asm_out_destructor (rtx, int); 567 extern void default_named_section_asm_out_constructor (rtx, int); 568 extern void default_ctor_section_asm_out_constructor (rtx, int); 569 570 extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT); 571 extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); 572 extern void default_unique_section (tree, int); 573 extern section *default_function_rodata_section (tree); 574 extern section *default_no_function_rodata_section (tree); 575 extern section *default_clone_table_section (void); 576 extern section *default_select_rtx_section (machine_mode, rtx, 577 unsigned HOST_WIDE_INT); 578 extern section *default_elf_select_rtx_section (machine_mode, rtx, 579 unsigned HOST_WIDE_INT); 580 extern void default_encode_section_info (tree, rtx, int); 581 extern const char *default_strip_name_encoding (const char *); 582 extern void default_asm_output_anchor (rtx); 583 extern bool default_use_anchors_for_symbol_p (const_rtx); 584 extern bool default_binds_local_p (const_tree); 585 extern bool default_binds_local_p_1 (const_tree, int); 586 extern bool default_binds_local_p_2 (const_tree); 587 extern bool default_binds_local_p_3 (const_tree, bool, bool, bool, bool); 588 extern void default_globalize_label (FILE *, const char *); 589 extern void default_globalize_decl_name (FILE *, tree); 590 extern void default_emit_unwind_label (FILE *, tree, int, int); 591 extern void default_emit_except_table_label (FILE *); 592 extern void default_generate_internal_label (char *, const char *, 593 unsigned long); 594 extern void default_internal_label (FILE *, const char *, unsigned long); 595 extern void default_asm_declare_constant_name (FILE *, const char *, 596 const_tree, HOST_WIDE_INT); 597 extern void default_file_start (void); 598 extern void file_end_indicate_exec_stack (void); 599 extern void file_end_indicate_split_stack (void); 600 601 extern void default_elf_asm_output_external (FILE *file, tree, 602 const char *); 603 extern void default_elf_asm_output_limited_string (FILE *, const char *); 604 extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int); 605 extern void default_elf_internal_label (FILE *, const char *, unsigned long); 606 607 extern void default_elf_init_array_asm_out_constructor (rtx, int); 608 extern void default_elf_fini_array_asm_out_destructor (rtx, int); 609 extern int maybe_assemble_visibility (tree); 610 611 extern int default_address_cost (rtx, machine_mode, addr_space_t, bool); 612 613 /* Output stack usage information. */ 614 extern void output_stack_usage (void); 615 616 #endif /* ! GCC_OUTPUT_H */ 617