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) 1987-2013 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); 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); 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); 54 55 /* Output assembler code for the start of a function, 56 and initialize some of the variables in this file 57 for the new function. The label for the function and associated 58 assembler pseudo-ops have already been output in 59 `assemble_start_function'. */ 60 extern void final_start_function (rtx, FILE *, int); 61 62 /* Output assembler code for the end of a function. 63 For clarity, args are same as those of `final_start_function' 64 even though not all of them are needed. */ 65 extern void final_end_function (void); 66 67 /* Output assembler code for some insns: all or part of a function. */ 68 extern void final (rtx, FILE *, int); 69 70 /* The final scan for one insn, INSN. Args are same as in `final', except 71 that INSN is the insn being scanned. Value returned is the next insn to 72 be scanned. */ 73 extern rtx final_scan_insn (rtx, FILE *, int, int, int *); 74 75 /* Replace a SUBREG with a REG or a MEM, based on the thing it is a 76 subreg of. */ 77 extern rtx alter_subreg (rtx *, bool); 78 79 /* Print an operand using machine-dependent assembler syntax. */ 80 extern void output_operand (rtx, int); 81 82 /* Report inconsistency between the assembler template and the operands. 83 In an `asm', it's the user's fault; otherwise, the compiler's fault. */ 84 extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1; 85 86 /* Output a string of assembler code, substituting insn operands. 87 Defined in final.c. */ 88 extern void output_asm_insn (const char *, rtx *); 89 90 /* Compute a worst-case reference address of a branch so that it 91 can be safely used in the presence of aligned labels. 92 Defined in final.c. */ 93 extern int insn_current_reference_address (rtx); 94 95 /* Find the alignment associated with a CODE_LABEL. 96 Defined in final.c. */ 97 extern int label_to_alignment (rtx); 98 99 /* Find the alignment maximum skip associated with a CODE_LABEL. 100 Defined in final.c. */ 101 extern int label_to_max_skip (rtx); 102 103 /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ 104 extern void output_asm_label (rtx); 105 106 /* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */ 107 extern void mark_symbol_refs_as_used (rtx); 108 109 /* Print a memory reference operand for address X 110 using machine-dependent assembler syntax. */ 111 extern void output_address (rtx); 112 113 /* Print an integer constant expression in assembler syntax. 114 Addition and subtraction are the only arithmetic 115 that may appear in these expressions. */ 116 extern void output_addr_const (FILE *, rtx); 117 118 /* Output a string of assembler code, substituting numbers, strings 119 and fixed syntactic prefixes. */ 120 #if GCC_VERSION >= 3004 121 #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m) 122 #else 123 #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m) 124 #endif 125 126 extern void fprint_whex (FILE *, unsigned HOST_WIDE_INT); 127 extern void fprint_ul (FILE *, unsigned long); 128 extern int sprint_ul (char *, unsigned long); 129 130 extern void asm_fprintf (FILE *file, const char *p, ...) 131 ATTRIBUTE_ASM_FPRINTF(2, 3); 132 133 /* Return nonzero if this function has no function calls. */ 134 extern int leaf_function_p (void); 135 136 /* Return 1 if branch is a forward branch. 137 Uses insn_shuid array, so it works only in the final pass. May be used by 138 output templates to add branch prediction hints, for example. */ 139 extern int final_forward_branch_p (rtx); 140 141 /* Return 1 if this function uses only the registers that can be 142 safely renumbered. */ 143 extern int only_leaf_regs_used (void); 144 145 /* Scan IN_RTX and its subexpressions, and renumber all regs into those 146 available in leaf functions. */ 147 extern void leaf_renumber_regs_insn (rtx); 148 149 /* Locate the proper template for the given insn-code. */ 150 extern const char *get_insn_template (int, rtx); 151 152 /* Functions in varasm.c. */ 153 154 /* Emit any pending weak declarations. */ 155 extern void weak_finish (void); 156 157 /* Decode an `asm' spec for a declaration as a register name. 158 Return the register number, or -1 if nothing specified, 159 or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, 160 or -3 if ASMSPEC is `cc' and is not recognized, 161 or -4 if ASMSPEC is `memory' and is not recognized. 162 Accept an exact spelling or a decimal number. 163 Prefixes such as % are optional. */ 164 extern int decode_reg_name (const char *); 165 166 /* Similar to decode_reg_name, but takes an extra parameter that is a 167 pointer to the number of (internal) registers described by the 168 external name. */ 169 extern int decode_reg_name_and_count (const char *, int *); 170 171 extern void do_assemble_alias (tree, tree); 172 173 extern void default_assemble_visibility (tree, int); 174 175 /* Output a string of literal assembler code 176 for an `asm' keyword used between functions. */ 177 extern void assemble_asm (tree); 178 179 /* Output assembler code for the constant pool of a function and associated 180 with defining the name of the function. DECL describes the function. 181 NAME is the function's name. For the constant pool, we use the current 182 constant pool data. */ 183 extern void assemble_start_function (tree, const char *); 184 185 /* Output assembler code associated with defining the size of the 186 function. DECL describes the function. NAME is the function's name. */ 187 extern void assemble_end_function (tree, const char *); 188 189 /* Assemble everything that is needed for a variable or function declaration. 190 Not used for automatic variables, and not used for function definitions. 191 Should not be called for variables of incomplete structure type. 192 193 TOP_LEVEL is nonzero if this variable has file scope. 194 AT_END is nonzero if this is the special handling, at end of compilation, 195 to define things that have had only tentative definitions. 196 DONT_OUTPUT_DATA if nonzero means don't actually output the 197 initial value (that will be done by the caller). */ 198 extern void assemble_variable (tree, int, int, int); 199 200 /* Compute the alignment of variable specified by DECL. 201 DONT_OUTPUT_DATA is from assemble_variable. */ 202 extern void align_variable (tree decl, bool dont_output_data); 203 204 /* Queue for outputting something to declare an external symbol to the 205 assembler. (Most assemblers don't need this, so we normally output 206 nothing.) Do nothing if DECL is not external. */ 207 extern void assemble_external (tree); 208 209 /* Assemble code to leave SIZE bytes of zeros. */ 210 extern void assemble_zeros (unsigned HOST_WIDE_INT); 211 212 /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */ 213 extern void assemble_align (int); 214 215 /* Assemble a string constant with the specified C string as contents. */ 216 extern void assemble_string (const char *, int); 217 218 /* Similar, for calling a library function FUN. */ 219 extern void assemble_external_libcall (rtx); 220 221 /* Assemble a label named NAME. */ 222 extern void assemble_label (FILE *, const char *); 223 224 /* Output to FILE (an assembly file) a reference to NAME. If NAME 225 starts with a *, the rest of NAME is output verbatim. Otherwise 226 NAME is transformed in a target-specific way (usually by the 227 addition of an underscore). */ 228 extern void assemble_name_raw (FILE *, const char *); 229 230 /* Like assemble_name_raw, but should be used when NAME might refer to 231 an entity that is also represented as a tree (like a function or 232 variable). If NAME does refer to such an entity, that entity will 233 be marked as referenced. */ 234 extern void assemble_name (FILE *, const char *); 235 236 /* Return the assembler directive for creating a given kind of integer 237 object. SIZE is the number of bytes in the object and ALIGNED_P 238 indicates whether it is known to be aligned. Return NULL if the 239 assembly dialect has no such directive. 240 241 The returned string should be printed at the start of a new line and 242 be followed immediately by the object's initial value. */ 243 extern const char *integer_asm_op (int, int); 244 245 /* Use directive OP to assemble an integer object X. Print OP at the 246 start of the line, followed immediately by the value of X. */ 247 extern void assemble_integer_with_op (const char *, rtx); 248 249 /* The default implementation of the asm_out.integer target hook. */ 250 extern bool default_assemble_integer (rtx, unsigned int, int); 251 252 /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is 253 the alignment of the integer in bits. Return 1 if we were able to output 254 the constant, otherwise 0. If FORCE is nonzero the constant must 255 be outputable. */ 256 extern bool assemble_integer (rtx, unsigned, unsigned, int); 257 258 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL) 259 is NULL. */ 260 extern section *get_named_text_section (tree, const char *, const char *); 261 262 /* An interface to assemble_integer for the common case in which a value is 263 fully aligned and must be printed. VALUE is the value of the integer 264 object and SIZE is the number of bytes it contains. */ 265 #define assemble_aligned_integer(SIZE, VALUE) \ 266 assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) 267 268 #ifdef REAL_VALUE_TYPE_SIZE 269 /* Assemble the floating-point constant D into an object of size MODE. */ 270 extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned); 271 #endif 272 273 /* Write the address of the entity given by SYMBOL to SEC. */ 274 extern void assemble_addr_to_section (rtx, section *); 275 276 /* Return the size of the constant pool. */ 277 extern int get_pool_size (void); 278 279 #ifdef HAVE_peephole 280 extern rtx peephole (rtx); 281 #endif 282 283 extern void output_shared_constant_pool (void); 284 285 extern void output_object_blocks (void); 286 287 extern void output_quoted_string (FILE *, const char *); 288 289 /* Output assembler code for constant EXP to FILE, with no label. 290 This includes the pseudo-op such as ".int" or ".byte", and a newline. 291 Assumes output_addressed_constants has been done on EXP already. 292 293 Generate exactly SIZE bytes of assembler data, padding at the end 294 with zeros if necessary. SIZE must always be specified. 295 296 ALIGN is the alignment in bits that may be assumed for the data. */ 297 extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int); 298 299 /* When outputting delayed branch sequences, this rtx holds the 300 sequence being output. It is null when no delayed branch 301 sequence is being output, so it can be used as a test in the 302 insn output code. 303 304 This variable is defined in final.c. */ 305 extern rtx final_sequence; 306 307 /* The line number of the beginning of the current function. Various 308 md code needs this so that it can output relative linenumbers. */ 309 310 #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */ 311 extern int sdb_begin_function_line; 312 #endif 313 314 /* File in which assembler code is being written. */ 315 316 #ifdef BUFSIZ 317 extern FILE *asm_out_file; 318 #endif 319 320 /* The first global object in the file. */ 321 extern const char *first_global_object_name; 322 323 /* The first weak object in the file. */ 324 extern const char *weak_global_object_name; 325 326 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ 327 extern rtx current_insn_predicate; 328 329 /* Last insn processed by final_scan_insn. */ 330 extern rtx current_output_insn; 331 332 /* Nonzero while outputting an `asm' with operands. 333 This means that inconsistencies are the user's fault, so don't die. 334 The precise value is the insn being output, to pass to error_for_asm. */ 335 extern rtx this_is_asm_operands; 336 337 /* Carry information from ASM_DECLARE_OBJECT_NAME 338 to ASM_FINISH_DECLARE_OBJECT. */ 339 extern int size_directive_output; 340 extern tree last_assemble_variable_decl; 341 342 extern bool first_function_block_is_cold; 343 344 /* Decide whether DECL needs to be in a writable section. 345 RELOC is the same as for SELECT_SECTION. */ 346 extern bool decl_readonly_section (const_tree, int); 347 348 /* This can be used to compute RELOC for the function above, when 349 given a constant expression. */ 350 extern int compute_reloc_for_constant (tree); 351 352 /* User label prefix in effect for this compilation. */ 353 extern const char *user_label_prefix; 354 355 /* Default target function prologue and epilogue assembler output. */ 356 extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT); 357 358 /* Default target function switched text sections. */ 359 extern void default_function_switched_text_sections (FILE *, tree, bool); 360 361 /* Default target hook that outputs nothing to a stream. */ 362 extern void no_asm_to_stream (FILE *); 363 364 /* Flags controlling properties of a section. */ 365 #define SECTION_ENTSIZE 0x000ff /* entity size in section */ 366 #define SECTION_CODE 0x00100 /* contains code */ 367 #define SECTION_WRITE 0x00200 /* data is writable */ 368 #define SECTION_DEBUG 0x00400 /* contains debug data */ 369 #define SECTION_LINKONCE 0x00800 /* is linkonce */ 370 #define SECTION_SMALL 0x01000 /* contains "small data" */ 371 #define SECTION_BSS 0x02000 /* contains zeros only */ 372 #define SECTION_FORGET 0x04000 /* forget that we've entered the section */ 373 #define SECTION_MERGE 0x08000 /* contains mergeable data */ 374 #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without 375 embedded zeros */ 376 #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */ 377 #define SECTION_TLS 0x40000 /* contains thread-local storage */ 378 #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ 379 #define SECTION_DECLARED 0x100000 /* section has been used */ 380 #define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */ 381 #define SECTION_COMMON 0x800000 /* contains common data */ 382 #define SECTION_RELRO 0x1000000 /* data is readonly after relocation processing */ 383 #define SECTION_EXCLUDE 0x2000000 /* discarded by the linker */ 384 #define SECTION_MACH_DEP 0x4000000 /* subsequent bits reserved for target */ 385 386 /* This SECTION_STYLE is used for unnamed sections that we can switch 387 to using a special assembler directive. */ 388 #define SECTION_UNNAMED 0x000000 389 390 /* This SECTION_STYLE is used for named sections that we can switch 391 to using a general section directive. */ 392 #define SECTION_NAMED 0x200000 393 394 /* This SECTION_STYLE is used for sections that we cannot switch to at 395 all. The choice of section is implied by the directive that we use 396 to declare the object. */ 397 #define SECTION_NOSWITCH 0x400000 398 399 /* A helper function for default_elf_select_section and 400 default_elf_unique_section. Categorizes the DECL. */ 401 402 enum section_category 403 { 404 SECCAT_TEXT, 405 406 SECCAT_RODATA, 407 SECCAT_RODATA_MERGE_STR, 408 SECCAT_RODATA_MERGE_STR_INIT, 409 SECCAT_RODATA_MERGE_CONST, 410 SECCAT_SRODATA, 411 412 SECCAT_DATA, 413 414 /* To optimize loading of shared programs, define following subsections 415 of data section: 416 _REL Contains data that has relocations, so they get grouped 417 together and dynamic linker will visit fewer pages in memory. 418 _RO Contains data that is otherwise read-only. This is useful 419 with prelinking as most relocations won't be dynamically 420 linked and thus stay read only. 421 _LOCAL Marks data containing relocations only to local objects. 422 These relocations will get fully resolved by prelinking. */ 423 SECCAT_DATA_REL, 424 SECCAT_DATA_REL_LOCAL, 425 SECCAT_DATA_REL_RO, 426 SECCAT_DATA_REL_RO_LOCAL, 427 428 SECCAT_SDATA, 429 SECCAT_TDATA, 430 431 SECCAT_BSS, 432 SECCAT_SBSS, 433 SECCAT_TBSS 434 }; 435 436 /* Information that is provided by all instances of the section type. */ 437 struct GTY(()) section_common { 438 /* The set of SECTION_* flags that apply to this section. */ 439 unsigned int flags; 440 }; 441 442 /* Information about a SECTION_NAMED section. */ 443 struct GTY(()) named_section { 444 struct section_common common; 445 446 /* The name of the section. */ 447 const char *name; 448 449 /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the 450 section is associated. */ 451 tree decl; 452 }; 453 454 /* A callback that writes the assembly code for switching to an unnamed 455 section. The argument provides callback-specific data. */ 456 typedef void (*unnamed_section_callback) (const void *); 457 458 /* Information about a SECTION_UNNAMED section. */ 459 struct GTY(()) unnamed_section { 460 struct section_common common; 461 462 /* The callback used to switch to the section, and the data that 463 should be passed to the callback. */ 464 unnamed_section_callback GTY ((skip)) callback; 465 const void *GTY ((skip)) data; 466 467 /* The next entry in the chain of unnamed sections. */ 468 section *next; 469 }; 470 471 /* A callback that writes the assembly code for a decl in a 472 SECTION_NOSWITCH section. DECL is the decl that should be assembled 473 and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl 474 in bytes and ROUNDED is that size rounded up to the next 475 BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary. 476 477 Return true if the callback used DECL_ALIGN to set the object's 478 alignment. A false return value implies that we are relying 479 on the rounded size to align the decl. */ 480 typedef bool (*noswitch_section_callback) (tree decl, const char *name, 481 unsigned HOST_WIDE_INT size, 482 unsigned HOST_WIDE_INT rounded); 483 484 /* Information about a SECTION_NOSWITCH section. */ 485 struct GTY(()) noswitch_section { 486 struct section_common common; 487 488 /* The callback used to assemble decls in this section. */ 489 noswitch_section_callback GTY ((skip)) callback; 490 }; 491 492 /* Information about a section, which may be named or unnamed. */ 493 union GTY ((desc ("SECTION_STYLE (&(%h))"))) section { 494 struct section_common GTY ((skip)) common; 495 struct named_section GTY ((tag ("SECTION_NAMED"))) named; 496 struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed; 497 struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch; 498 }; 499 500 /* Return the style of section SECT. */ 501 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK) 502 503 struct object_block; 504 505 /* Special well-known sections. */ 506 extern GTY(()) section *text_section; 507 extern GTY(()) section *data_section; 508 extern GTY(()) section *readonly_data_section; 509 extern GTY(()) section *sdata_section; 510 extern GTY(()) section *ctors_section; 511 extern GTY(()) section *dtors_section; 512 extern GTY(()) section *bss_section; 513 extern GTY(()) section *sbss_section; 514 extern GTY(()) section *exception_section; 515 extern GTY(()) section *eh_frame_section; 516 extern GTY(()) section *tls_comm_section; 517 extern GTY(()) section *comm_section; 518 extern GTY(()) section *lcomm_section; 519 extern GTY(()) section *bss_noswitch_section; 520 521 extern GTY(()) section *in_section; 522 extern GTY(()) bool in_cold_section_p; 523 524 extern section *get_unnamed_section (unsigned int, void (*) (const void *), 525 const void *); 526 extern section *get_section (const char *, unsigned int, tree); 527 extern section *get_named_section (tree, const char *, int); 528 extern section *get_variable_section (tree, bool); 529 extern void place_block_symbol (rtx); 530 extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, 531 enum tls_model); 532 extern section *mergeable_constant_section (enum machine_mode, 533 unsigned HOST_WIDE_INT, 534 unsigned int); 535 extern section *function_section (tree); 536 extern section *unlikely_text_section (void); 537 extern section *current_function_section (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); 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 (enum machine_mode, rtx, 577 unsigned HOST_WIDE_INT); 578 extern section *default_elf_select_rtx_section (enum 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 void default_globalize_label (FILE *, const char *); 587 extern void default_globalize_decl_name (FILE *, tree); 588 extern void default_emit_unwind_label (FILE *, tree, int, int); 589 extern void default_emit_except_table_label (FILE *); 590 extern void default_generate_internal_label (char *, const char *, 591 unsigned long); 592 extern void default_internal_label (FILE *, const char *, unsigned long); 593 extern void default_asm_declare_constant_name (FILE *, const char *, 594 const_tree, HOST_WIDE_INT); 595 extern void default_file_start (void); 596 extern void file_end_indicate_exec_stack (void); 597 extern void file_end_indicate_split_stack (void); 598 599 extern void default_elf_asm_output_external (FILE *file, tree, 600 const char *); 601 extern void default_elf_asm_output_limited_string (FILE *, const char *); 602 extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int); 603 extern void default_elf_internal_label (FILE *, const char *, unsigned long); 604 605 extern void default_elf_init_array_asm_out_constructor (rtx, int); 606 extern void default_elf_fini_array_asm_out_destructor (rtx, int); 607 extern int maybe_assemble_visibility (tree); 608 609 extern int default_address_cost (rtx, enum machine_mode, addr_space_t, bool); 610 611 /* Output stack usage information. */ 612 extern void output_stack_usage (void); 613 614 #endif /* ! GCC_OUTPUT_H */ 615