1 /* Declarations for insn-output.c. These functions are defined in recog.c, 2 final.c, and varasm.c. 3 Copyright (C) 1987, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002, 4 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 5 Free Software Foundation, Inc. 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify it under 10 the terms of the GNU General Public License as published by the Free 11 Software Foundation; either version 3, or (at your option) any later 12 version. 13 14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 15 WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 #ifndef GCC_OUTPUT_H 24 #define GCC_OUTPUT_H 25 26 /* Initialize data in final at the beginning of a compilation. */ 27 extern void init_final (const char *); 28 29 /* Enable APP processing of subsequent output. 30 Used before the output from an `asm' statement. */ 31 extern void app_enable (void); 32 33 /* Disable APP processing of subsequent output. 34 Called from varasm.c before most kinds of output. */ 35 extern void app_disable (void); 36 37 /* Return the number of slots filled in the current 38 delayed branch sequence (we don't count the insn needing the 39 delay slot). Zero if not in a delayed branch sequence. */ 40 extern int dbr_sequence_length (void); 41 42 /* Indicate that branch shortening hasn't yet been done. */ 43 extern void init_insn_lengths (void); 44 45 /* Obtain the current length of an insn. If branch shortening has been done, 46 get its actual length. Otherwise, get its maximum length. */ 47 extern int get_attr_length (rtx); 48 49 /* Obtain the current length of an insn. If branch shortening has been done, 50 get its actual length. Otherwise, get its minimum length. */ 51 extern int get_attr_min_length (rtx); 52 53 /* Make a pass over all insns and compute their actual lengths by shortening 54 any branches of variable length if possible. */ 55 extern void shorten_branches (rtx); 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, 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, 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 final_scan_insn (rtx, 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 *); 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); 96 97 /* Find the alignment associated with a CODE_LABEL. 98 Defined in final.c. */ 99 extern int label_to_alignment (rtx); 100 101 /* Find the alignment maximum skip associated with a CODE_LABEL. 102 Defined in final.c. */ 103 extern int label_to_max_skip (rtx); 104 105 /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ 106 extern void output_asm_label (rtx); 107 108 /* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */ 109 extern void mark_symbol_refs_as_used (rtx); 110 111 /* Print a memory reference operand for address X 112 using machine-dependent assembler syntax. */ 113 extern void output_address (rtx); 114 115 /* Print an integer constant expression in assembler syntax. 116 Addition and subtraction are the only arithmetic 117 that may appear in these expressions. */ 118 extern void output_addr_const (FILE *, rtx); 119 120 /* Output a string of assembler code, substituting numbers, strings 121 and fixed syntactic prefixes. */ 122 #if GCC_VERSION >= 3004 123 #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m) 124 /* This is a magic identifier which allows GCC to figure out the type 125 of HOST_WIDE_INT for %wd specifier checks. You must issue this 126 typedef before using the __asm_fprintf__ format attribute. */ 127 typedef HOST_WIDE_INT __gcc_host_wide_int__; 128 #else 129 #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m) 130 #endif 131 132 extern void asm_fprintf (FILE *file, const char *p, ...) 133 ATTRIBUTE_ASM_FPRINTF(2, 3); 134 135 /* Split up a CONST_DOUBLE or integer constant rtx into two rtx's for single 136 words. */ 137 extern void split_double (rtx, rtx *, rtx *); 138 139 /* Return nonzero if this function has no function calls. */ 140 extern int leaf_function_p (void); 141 142 /* Return 1 if branch is a forward branch. 143 Uses insn_shuid array, so it works only in the final pass. May be used by 144 output templates to add branch prediction hints, for example. */ 145 extern int final_forward_branch_p (rtx); 146 147 /* Return 1 if this function uses only the registers that can be 148 safely renumbered. */ 149 extern int only_leaf_regs_used (void); 150 151 /* Scan IN_RTX and its subexpressions, and renumber all regs into those 152 available in leaf functions. */ 153 extern void leaf_renumber_regs_insn (rtx); 154 155 /* Locate the proper template for the given insn-code. */ 156 extern const char *get_insn_template (int, rtx); 157 158 /* Functions in varasm.c. */ 159 160 /* Declare DECL to be a weak symbol. */ 161 extern void declare_weak (tree); 162 /* Merge weak status. */ 163 extern void merge_weak (tree, tree); 164 165 /* Emit any pending weak declarations. */ 166 extern void weak_finish (void); 167 168 /* Return the default TLS model for a given variable. */ 169 extern enum tls_model decl_default_tls_model (const_tree); 170 171 /* Decode an `asm' spec for a declaration as a register name. 172 Return the register number, or -1 if nothing specified, 173 or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, 174 or -3 if ASMSPEC is `cc' and is not recognized, 175 or -4 if ASMSPEC is `memory' and is not recognized. 176 Accept an exact spelling or a decimal number. 177 Prefixes such as % are optional. */ 178 extern int decode_reg_name (const char *); 179 180 /* Similar to decode_reg_name, but takes an extra parameter that is a 181 pointer to the number of (internal) registers described by the 182 external name. */ 183 extern int decode_reg_name_and_count (const char *, int *); 184 185 extern void assemble_alias (tree, tree); 186 187 extern void default_assemble_visibility (tree, int); 188 189 /* Output a string of literal assembler code 190 for an `asm' keyword used between functions. */ 191 extern void assemble_asm (tree); 192 193 /* Output assembler code for the constant pool of a function and associated 194 with defining the name of the function. DECL describes the function. 195 NAME is the function's name. For the constant pool, we use the current 196 constant pool data. */ 197 extern void assemble_start_function (tree, const char *); 198 199 /* Output assembler code associated with defining the size of the 200 function. DECL describes the function. NAME is the function's name. */ 201 extern void assemble_end_function (tree, const char *); 202 203 /* Assemble everything that is needed for a variable or function declaration. 204 Not used for automatic variables, and not used for function definitions. 205 Should not be called for variables of incomplete structure type. 206 207 TOP_LEVEL is nonzero if this variable has file scope. 208 AT_END is nonzero if this is the special handling, at end of compilation, 209 to define things that have had only tentative definitions. 210 DONT_OUTPUT_DATA if nonzero means don't actually output the 211 initial value (that will be done by the caller). */ 212 extern void assemble_variable (tree, int, int, int); 213 214 /* Compute the alignment of variable specified by DECL. 215 DONT_OUTPUT_DATA is from assemble_variable. */ 216 extern void align_variable (tree decl, bool dont_output_data); 217 218 /* Queue for outputting something to declare an external symbol to the 219 assembler. (Most assemblers don't need this, so we normally output 220 nothing.) Do nothing if DECL is not external. */ 221 extern void assemble_external (tree); 222 223 /* Assemble code to leave SIZE bytes of zeros. */ 224 extern void assemble_zeros (unsigned HOST_WIDE_INT); 225 226 /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */ 227 extern void assemble_align (int); 228 229 /* Assemble a string constant with the specified C string as contents. */ 230 extern void assemble_string (const char *, int); 231 232 /* Similar, for calling a library function FUN. */ 233 extern void assemble_external_libcall (rtx); 234 235 /* Assemble a label named NAME. */ 236 extern void assemble_label (FILE *, const char *); 237 238 /* Output to FILE (an assembly file) a reference to NAME. If NAME 239 starts with a *, the rest of NAME is output verbatim. Otherwise 240 NAME is transformed in a target-specific way (usually by the 241 addition of an underscore). */ 242 extern void assemble_name_raw (FILE *, const char *); 243 244 /* Like assemble_name_raw, but should be used when NAME might refer to 245 an entity that is also represented as a tree (like a function or 246 variable). If NAME does refer to such an entity, that entity will 247 be marked as referenced. */ 248 extern void assemble_name (FILE *, const char *); 249 250 /* Return the assembler directive for creating a given kind of integer 251 object. SIZE is the number of bytes in the object and ALIGNED_P 252 indicates whether it is known to be aligned. Return NULL if the 253 assembly dialect has no such directive. 254 255 The returned string should be printed at the start of a new line and 256 be followed immediately by the object's initial value. */ 257 extern const char *integer_asm_op (int, int); 258 259 /* Use directive OP to assemble an integer object X. Print OP at the 260 start of the line, followed immediately by the value of X. */ 261 extern void assemble_integer_with_op (const char *, rtx); 262 263 /* The default implementation of the asm_out.integer target hook. */ 264 extern bool default_assemble_integer (rtx, unsigned int, int); 265 266 /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is 267 the alignment of the integer in bits. Return 1 if we were able to output 268 the constant, otherwise 0. If FORCE is nonzero the constant must 269 be outputable. */ 270 extern bool assemble_integer (rtx, unsigned, unsigned, int); 271 272 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL) 273 is NULL. */ 274 extern section *get_named_text_section (tree, const char *, const char *); 275 276 /* An interface to assemble_integer for the common case in which a value is 277 fully aligned and must be printed. VALUE is the value of the integer 278 object and SIZE is the number of bytes it contains. */ 279 #define assemble_aligned_integer(SIZE, VALUE) \ 280 assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) 281 282 #ifdef REAL_VALUE_TYPE_SIZE 283 /* Assemble the floating-point constant D into an object of size MODE. */ 284 extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned); 285 #endif 286 287 /* Write the address of the entity given by SYMBOL to SEC. */ 288 extern void assemble_addr_to_section (rtx, section *); 289 290 /* Return the size of the constant pool. */ 291 extern int get_pool_size (void); 292 293 #ifdef HAVE_peephole 294 extern rtx peephole (rtx); 295 #endif 296 297 extern void output_shared_constant_pool (void); 298 299 extern void output_object_blocks (void); 300 301 extern void output_quoted_string (FILE *, const char *); 302 303 /* Whether a constructor CTOR is a valid static constant initializer if all 304 its elements are. This used to be internal to initializer_constant_valid_p 305 and has been exposed to let other functions like categorize_ctor_elements 306 evaluate the property while walking a constructor for other purposes. */ 307 308 extern bool constructor_static_from_elts_p (const_tree); 309 310 /* Return nonzero if VALUE is a valid constant-valued expression 311 for use in initializing a static variable; one that can be an 312 element of a "constant" initializer. 313 314 Return null_pointer_node if the value is absolute; 315 if it is relocatable, return the variable that determines the relocation. 316 We assume that VALUE has been folded as much as possible; 317 therefore, we do not need to check for such things as 318 arithmetic-combinations of integers. */ 319 extern tree initializer_constant_valid_p (tree, tree); 320 321 /* Return true if VALUE is a valid constant-valued expression 322 for use in initializing a static bit-field; one that can be 323 an element of a "constant" initializer. */ 324 extern bool initializer_constant_valid_for_bitfield_p (tree); 325 326 /* Output assembler code for constant EXP to FILE, with no label. 327 This includes the pseudo-op such as ".int" or ".byte", and a newline. 328 Assumes output_addressed_constants has been done on EXP already. 329 330 Generate exactly SIZE bytes of assembler data, padding at the end 331 with zeros if necessary. SIZE must always be specified. 332 333 ALIGN is the alignment in bits that may be assumed for the data. */ 334 extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int); 335 336 /* When outputting delayed branch sequences, this rtx holds the 337 sequence being output. It is null when no delayed branch 338 sequence is being output, so it can be used as a test in the 339 insn output code. 340 341 This variable is defined in final.c. */ 342 extern rtx final_sequence; 343 344 /* The line number of the beginning of the current function. Various 345 md code needs this so that it can output relative linenumbers. */ 346 347 #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */ 348 extern int sdb_begin_function_line; 349 #endif 350 351 /* File in which assembler code is being written. */ 352 353 #ifdef BUFSIZ 354 extern FILE *asm_out_file; 355 #endif 356 357 /* The first global object in the file. */ 358 extern const char *first_global_object_name; 359 360 /* The first weak object in the file. */ 361 extern const char *weak_global_object_name; 362 363 /* Nonzero if function being compiled doesn't contain any calls 364 (ignoring the prologue and epilogue). This is set prior to 365 local register allocation and is valid for the remaining 366 compiler passes. */ 367 368 extern int current_function_is_leaf; 369 370 /* Nonzero if function being compiled doesn't modify the stack pointer 371 (ignoring the prologue and epilogue). This is only valid after 372 pass_stack_ptr_mod has run. */ 373 374 extern int current_function_sp_is_unchanging; 375 376 /* Nonzero if the function being compiled is a leaf function which only 377 uses leaf registers. This is valid after reload (specifically after 378 sched2) and is useful only if the port defines LEAF_REGISTERS. */ 379 380 extern int current_function_uses_only_leaf_regs; 381 382 /* Default file in which to dump debug output. */ 383 384 #ifdef BUFSIZ 385 extern FILE *dump_file; 386 #endif 387 388 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ 389 extern rtx current_insn_predicate; 390 391 /* Last insn processed by final_scan_insn. */ 392 extern rtx current_output_insn; 393 394 /* Nonzero while outputting an `asm' with operands. 395 This means that inconsistencies are the user's fault, so don't die. 396 The precise value is the insn being output, to pass to error_for_asm. */ 397 extern rtx this_is_asm_operands; 398 399 /* Carry information from ASM_DECLARE_OBJECT_NAME 400 to ASM_FINISH_DECLARE_OBJECT. */ 401 extern int size_directive_output; 402 extern tree last_assemble_variable_decl; 403 404 extern bool first_function_block_is_cold; 405 406 /* Decide whether DECL needs to be in a writable section. 407 RELOC is the same as for SELECT_SECTION. */ 408 extern bool decl_readonly_section (const_tree, int); 409 410 /* This can be used to compute RELOC for the function above, when 411 given a constant expression. */ 412 extern int compute_reloc_for_constant (tree); 413 414 /* User label prefix in effect for this compilation. */ 415 extern const char *user_label_prefix; 416 417 /* Default target function prologue and epilogue assembler output. */ 418 extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT); 419 420 /* Default target function switched text sections. */ 421 extern void default_function_switched_text_sections (FILE *, tree, bool); 422 423 /* Default target hook that outputs nothing to a stream. */ 424 extern void no_asm_to_stream (FILE *); 425 426 /* Flags controlling properties of a section. */ 427 #define SECTION_ENTSIZE 0x000ff /* entity size in section */ 428 #define SECTION_CODE 0x00100 /* contains code */ 429 #define SECTION_WRITE 0x00200 /* data is writable */ 430 #define SECTION_DEBUG 0x00400 /* contains debug data */ 431 #define SECTION_LINKONCE 0x00800 /* is linkonce */ 432 #define SECTION_SMALL 0x01000 /* contains "small data" */ 433 #define SECTION_BSS 0x02000 /* contains zeros only */ 434 #define SECTION_FORGET 0x04000 /* forget that we've entered the section */ 435 #define SECTION_MERGE 0x08000 /* contains mergeable data */ 436 #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without 437 embedded zeros */ 438 #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */ 439 #define SECTION_TLS 0x40000 /* contains thread-local storage */ 440 #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ 441 #define SECTION_DECLARED 0x100000 /* section has been used */ 442 #define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */ 443 #define SECTION_COMMON 0x800000 /* contains common data */ 444 #define SECTION_RELRO 0x1000000 /* data is readonly after relocation processing */ 445 #define SECTION_MACH_DEP 0x2000000 /* subsequent bits reserved for target */ 446 #define SECTION_EXCLUDE 0x4000000 /* discarded by the linker */ 447 448 /* This SECTION_STYLE is used for unnamed sections that we can switch 449 to using a special assembler directive. */ 450 #define SECTION_UNNAMED 0x000000 451 452 /* This SECTION_STYLE is used for named sections that we can switch 453 to using a general section directive. */ 454 #define SECTION_NAMED 0x200000 455 456 /* This SECTION_STYLE is used for sections that we cannot switch to at 457 all. The choice of section is implied by the directive that we use 458 to declare the object. */ 459 #define SECTION_NOSWITCH 0x400000 460 461 /* A helper function for default_elf_select_section and 462 default_elf_unique_section. Categorizes the DECL. */ 463 464 enum section_category 465 { 466 SECCAT_TEXT, 467 468 SECCAT_RODATA, 469 SECCAT_RODATA_MERGE_STR, 470 SECCAT_RODATA_MERGE_STR_INIT, 471 SECCAT_RODATA_MERGE_CONST, 472 SECCAT_SRODATA, 473 474 SECCAT_DATA, 475 476 /* To optimize loading of shared programs, define following subsections 477 of data section: 478 _REL Contains data that has relocations, so they get grouped 479 together and dynamic linker will visit fewer pages in memory. 480 _RO Contains data that is otherwise read-only. This is useful 481 with prelinking as most relocations won't be dynamically 482 linked and thus stay read only. 483 _LOCAL Marks data containing relocations only to local objects. 484 These relocations will get fully resolved by prelinking. */ 485 SECCAT_DATA_REL, 486 SECCAT_DATA_REL_LOCAL, 487 SECCAT_DATA_REL_RO, 488 SECCAT_DATA_REL_RO_LOCAL, 489 490 SECCAT_SDATA, 491 SECCAT_TDATA, 492 493 SECCAT_BSS, 494 SECCAT_SBSS, 495 SECCAT_TBSS 496 }; 497 498 /* Information that is provided by all instances of the section type. */ 499 struct GTY(()) section_common { 500 /* The set of SECTION_* flags that apply to this section. */ 501 unsigned int flags; 502 }; 503 504 /* Information about a SECTION_NAMED section. */ 505 struct GTY(()) named_section { 506 struct section_common common; 507 508 /* The name of the section. */ 509 const char *name; 510 511 /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the 512 section is associated. */ 513 tree decl; 514 }; 515 516 /* A callback that writes the assembly code for switching to an unnamed 517 section. The argument provides callback-specific data. */ 518 typedef void (*unnamed_section_callback) (const void *); 519 520 /* Information about a SECTION_UNNAMED section. */ 521 struct GTY(()) unnamed_section { 522 struct section_common common; 523 524 /* The callback used to switch to the section, and the data that 525 should be passed to the callback. */ 526 unnamed_section_callback GTY ((skip)) callback; 527 const void *GTY ((skip)) data; 528 529 /* The next entry in the chain of unnamed sections. */ 530 section *next; 531 }; 532 533 /* A callback that writes the assembly code for a decl in a 534 SECTION_NOSWITCH section. DECL is the decl that should be assembled 535 and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl 536 in bytes and ROUNDED is that size rounded up to the next 537 BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary. 538 539 Return true if the callback used DECL_ALIGN to set the object's 540 alignment. A false return value implies that we are relying 541 on the rounded size to align the decl. */ 542 typedef bool (*noswitch_section_callback) (tree decl, const char *name, 543 unsigned HOST_WIDE_INT size, 544 unsigned HOST_WIDE_INT rounded); 545 546 /* Information about a SECTION_NOSWITCH section. */ 547 struct GTY(()) noswitch_section { 548 struct section_common common; 549 550 /* The callback used to assemble decls in this section. */ 551 noswitch_section_callback GTY ((skip)) callback; 552 }; 553 554 /* Information about a section, which may be named or unnamed. */ 555 union GTY ((desc ("SECTION_STYLE (&(%h))"))) section { 556 struct section_common GTY ((skip)) common; 557 struct named_section GTY ((tag ("SECTION_NAMED"))) named; 558 struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed; 559 struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch; 560 }; 561 562 /* Return the style of section SECT. */ 563 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK) 564 565 struct object_block; 566 567 /* Special well-known sections. */ 568 extern GTY(()) section *text_section; 569 extern GTY(()) section *data_section; 570 extern GTY(()) section *readonly_data_section; 571 extern GTY(()) section *sdata_section; 572 extern GTY(()) section *ctors_section; 573 extern GTY(()) section *dtors_section; 574 extern GTY(()) section *bss_section; 575 extern GTY(()) section *sbss_section; 576 extern GTY(()) section *exception_section; 577 extern GTY(()) section *eh_frame_section; 578 extern GTY(()) section *tls_comm_section; 579 extern GTY(()) section *comm_section; 580 extern GTY(()) section *lcomm_section; 581 extern GTY(()) section *bss_noswitch_section; 582 583 extern GTY(()) section *in_section; 584 extern GTY(()) bool in_cold_section_p; 585 586 extern section *get_unnamed_section (unsigned int, void (*) (const void *), 587 const void *); 588 extern section *get_section (const char *, unsigned int, tree); 589 extern section *get_named_section (tree, const char *, int); 590 extern section *get_variable_section (tree, bool); 591 extern void place_block_symbol (rtx); 592 extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, 593 enum tls_model); 594 extern section *mergeable_constant_section (enum machine_mode, 595 unsigned HOST_WIDE_INT, 596 unsigned int); 597 extern section *function_section (tree); 598 extern section *unlikely_text_section (void); 599 extern section *current_function_section (void); 600 601 /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if 602 not) section for PRIORITY. */ 603 extern section *get_cdtor_priority_section (int, bool); 604 605 extern bool unlikely_text_section_p (section *); 606 extern void switch_to_section (section *); 607 extern void output_section_asm_op (const void *); 608 609 extern void default_asm_output_source_filename (FILE *, const char *); 610 extern void output_file_directive (FILE *, const char *); 611 612 extern unsigned int default_section_type_flags (tree, const char *, int); 613 614 extern bool have_global_bss_p (void); 615 extern void default_no_named_section (const char *, unsigned int, tree); 616 extern void default_elf_asm_named_section (const char *, unsigned int, tree); 617 extern enum section_category categorize_decl_for_section (const_tree, int); 618 extern void default_coff_asm_named_section (const char *, unsigned int, tree); 619 extern void default_pe_asm_named_section (const char *, unsigned int, tree); 620 621 extern void default_stabs_asm_out_destructor (rtx, int); 622 extern void default_named_section_asm_out_destructor (rtx, int); 623 extern void default_dtor_section_asm_out_destructor (rtx, int); 624 extern void default_stabs_asm_out_constructor (rtx, int); 625 extern void default_named_section_asm_out_constructor (rtx, int); 626 extern void default_ctor_section_asm_out_constructor (rtx, int); 627 628 extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT); 629 extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); 630 extern void default_unique_section (tree, int); 631 extern section *default_function_rodata_section (tree); 632 extern section *default_no_function_rodata_section (tree); 633 extern section *default_select_rtx_section (enum machine_mode, rtx, 634 unsigned HOST_WIDE_INT); 635 extern section *default_elf_select_rtx_section (enum machine_mode, rtx, 636 unsigned HOST_WIDE_INT); 637 extern void default_encode_section_info (tree, rtx, int); 638 extern const char *default_strip_name_encoding (const char *); 639 extern void default_asm_output_anchor (rtx); 640 extern bool default_use_anchors_for_symbol_p (const_rtx); 641 extern bool default_binds_local_p (const_tree); 642 extern bool default_binds_local_p_1 (const_tree, int); 643 extern void default_globalize_label (FILE *, const char *); 644 extern void default_globalize_decl_name (FILE *, tree); 645 extern void default_emit_unwind_label (FILE *, tree, int, int); 646 extern void default_emit_except_table_label (FILE *); 647 extern void default_generate_internal_label (char *, const char *, 648 unsigned long); 649 extern void default_internal_label (FILE *, const char *, unsigned long); 650 extern void default_asm_declare_constant_name (FILE *, const char *, 651 const_tree, HOST_WIDE_INT); 652 extern void default_file_start (void); 653 extern void file_end_indicate_exec_stack (void); 654 extern void file_end_indicate_split_stack (void); 655 656 extern void default_elf_asm_output_external (FILE *file, tree, 657 const char *); 658 extern void default_elf_init_array_asm_out_constructor (rtx, int); 659 extern void default_elf_fini_array_asm_out_destructor (rtx, int); 660 extern int maybe_assemble_visibility (tree); 661 662 extern int default_address_cost (rtx, bool); 663 664 /* Output stack usage information. */ 665 extern void output_stack_usage (void); 666 667 /* dbxout helper functions */ 668 #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO 669 670 extern void dbxout_int (int); 671 extern void dbxout_stabd (int, int); 672 extern void dbxout_begin_stabn (int); 673 extern void dbxout_begin_stabn_sline (int); 674 extern void dbxout_begin_empty_stabs (int); 675 extern void dbxout_begin_simple_stabs (const char *, int); 676 extern void dbxout_begin_simple_stabs_desc (const char *, int, int); 677 678 extern void dbxout_stab_value_zero (void); 679 extern void dbxout_stab_value_label (const char *); 680 extern void dbxout_stab_value_label_diff (const char *, const char *); 681 extern void dbxout_stab_value_internal_label (const char *, int *); 682 extern void dbxout_stab_value_internal_label_diff (const char *, int *, 683 const char *); 684 685 #endif 686 687 #endif /* ! GCC_OUTPUT_H */ 688
