gcc/output.h

   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 #else
 125 #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m)
 126 #endif
 127
 128 extern void fprint_whex (FILE *, unsigned HOST_WIDE_INT);
 129 extern void fprint_ul (FILE *, unsigned long);
 130 extern int sprint_ul (char *, unsigned long);
 131
 132 extern void asm_fprintf (FILE *file, const char *p, ...)
 133      ATTRIBUTE_ASM_FPRINTF(2, 3);
 134
 135 /* Return nonzero if this function has no function calls.  */
 136 extern int leaf_function_p (void);
 137
 138 /* Return 1 if branch is a forward branch.
 139    Uses insn_shuid array, so it works only in the final pass.  May be used by
 140    output templates to add branch prediction hints, for example.  */
 141 extern int final_forward_branch_p (rtx);
 142
 143 /* Return 1 if this function uses only the registers that can be
 144    safely renumbered.  */
 145 extern int only_leaf_regs_used (void);
 146
 147 /* Scan IN_RTX and its subexpressions, and renumber all regs into those
 148    available in leaf functions.  */
 149 extern void leaf_renumber_regs_insn (rtx);
 150
 151 /* Locate the proper template for the given insn-code.  */
 152 extern const char *get_insn_template (int, rtx);
 153
 154 /* Functions in varasm.c.  */
 155
 156 /* Emit any pending weak declarations.  */
 157 extern void weak_finish (void);
 158
 159 /* Decode an `asm' spec for a declaration as a register name.
 160    Return the register number, or -1 if nothing specified,
 161    or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized,
 162    or -3 if ASMSPEC is `cc' and is not recognized,
 163    or -4 if ASMSPEC is `memory' and is not recognized.
 164    Accept an exact spelling or a decimal number.
 165    Prefixes such as % are optional.  */
 166 extern int decode_reg_name (const char *);
 167
 168 /* Similar to decode_reg_name, but takes an extra parameter that is a
 169    pointer to the number of (internal) registers described by the
 170    external name.  */
 171 extern int decode_reg_name_and_count (const char *, int *);
 172
 173 extern void do_assemble_alias (tree, tree);
 174
 175 extern void default_assemble_visibility (tree, int);
 176
 177 /* Output a string of literal assembler code
 178    for an `asm' keyword used between functions.  */
 179 extern void assemble_asm (tree);
 180
 181 /* Output assembler code for the constant pool of a function and associated
 182    with defining the name of the function.  DECL describes the function.
 183    NAME is the function's name.  For the constant pool, we use the current
 184    constant pool data.  */
 185 extern void assemble_start_function (tree, const char *);
 186
 187 /* Output assembler code associated with defining the size of the
 188    function.  DECL describes the function.  NAME is the function's name.  */
 189 extern void assemble_end_function (tree, const char *);
 190
 191 /* Assemble everything that is needed for a variable or function declaration.
 192    Not used for automatic variables, and not used for function definitions.
 193    Should not be called for variables of incomplete structure type.
 194
 195    TOP_LEVEL is nonzero if this variable has file scope.
 196    AT_END is nonzero if this is the special handling, at end of compilation,
 197    to define things that have had only tentative definitions.
 198    DONT_OUTPUT_DATA if nonzero means don't actually output the
 199    initial value (that will be done by the caller).  */
 200 extern void assemble_variable (tree, int, int, int);
 201
 202 /* Compute the alignment of variable specified by DECL.
 203    DONT_OUTPUT_DATA is from assemble_variable.  */
 204 extern void align_variable (tree decl, bool dont_output_data);
 205
 206 /* Queue for outputting something to declare an external symbol to the
 207    assembler.  (Most assemblers don't need this, so we normally output
 208    nothing.)  Do nothing if DECL is not external.  */
 209 extern void assemble_external (tree);
 210
 211 /* Assemble code to leave SIZE bytes of zeros.  */
 212 extern void assemble_zeros (unsigned HOST_WIDE_INT);
 213
 214 /* Assemble an alignment pseudo op for an ALIGN-bit boundary.  */
 215 extern void assemble_align (int);
 216
 217 /* Assemble a string constant with the specified C string as contents.  */
 218 extern void assemble_string (const char *, int);
 219
 220 /* Similar, for calling a library function FUN.  */
 221 extern void assemble_external_libcall (rtx);
 222
 223 /* Assemble a label named NAME.  */
 224 extern void assemble_label (FILE *, const char *);
 225
 226 /* Output to FILE (an assembly file) a reference to NAME.  If NAME
 227    starts with a *, the rest of NAME is output verbatim.  Otherwise
 228    NAME is transformed in a target-specific way (usually by the
 229    addition of an underscore).  */
 230 extern void assemble_name_raw (FILE *, const char *);
 231
 232 /* Like assemble_name_raw, but should be used when NAME might refer to
 233    an entity that is also represented as a tree (like a function or
 234    variable).  If NAME does refer to such an entity, that entity will
 235    be marked as referenced.  */
 236 extern void assemble_name (FILE *, const char *);
 237
 238 /* Return the assembler directive for creating a given kind of integer
 239    object.  SIZE is the number of bytes in the object and ALIGNED_P
 240    indicates whether it is known to be aligned.  Return NULL if the
 241    assembly dialect has no such directive.
 242
 243    The returned string should be printed at the start of a new line and
 244    be followed immediately by the object's initial value.  */
 245 extern const char *integer_asm_op (int, int);
 246
 247 /* Use directive OP to assemble an integer object X.  Print OP at the
 248    start of the line, followed immediately by the value of X.  */
 249 extern void assemble_integer_with_op (const char *, rtx);
 250
 251 /* The default implementation of the asm_out.integer target hook.  */
 252 extern bool default_assemble_integer (rtx, unsigned int, int);
 253
 254 /* Assemble the integer constant X into an object of SIZE bytes.  ALIGN is
 255    the alignment of the integer in bits.  Return 1 if we were able to output
 256    the constant, otherwise 0.  If FORCE is nonzero the constant must
 257    be outputable. */
 258 extern bool assemble_integer (rtx, unsigned, unsigned, int);
 259
 260 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL)
 261    is NULL.  */
 262 extern section *get_named_text_section (tree, const char *, const char *);
 263
 264 /* An interface to assemble_integer for the common case in which a value is
 265    fully aligned and must be printed.  VALUE is the value of the integer
 266    object and SIZE is the number of bytes it contains.  */
 267 #define assemble_aligned_integer(SIZE, VALUE) \
 268   assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1)
 269
 270 #ifdef REAL_VALUE_TYPE_SIZE
 271 /* Assemble the floating-point constant D into an object of size MODE.  */
 272 extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned);
 273 #endif
 274
 275 /* Write the address of the entity given by SYMBOL to SEC.  */
 276 extern void assemble_addr_to_section (rtx, section *);
 277
 278 /* Return the size of the constant pool.  */
 279 extern int get_pool_size (void);
 280
 281 #ifdef HAVE_peephole
 282 extern rtx peephole (rtx);
 283 #endif
 284
 285 extern void output_shared_constant_pool (void);
 286
 287 extern void output_object_blocks (void);
 288
 289 extern void output_quoted_string (FILE *, const char *);
 290
 291 /* Output assembler code for constant EXP to FILE, with no label.
 292    This includes the pseudo-op such as ".int" or ".byte", and a newline.
 293    Assumes output_addressed_constants has been done on EXP already.
 294
 295    Generate exactly SIZE bytes of assembler data, padding at the end
 296    with zeros if necessary.  SIZE must always be specified.
 297
 298    ALIGN is the alignment in bits that may be assumed for the data.  */
 299 extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int);
 300
 301 /* When outputting delayed branch sequences, this rtx holds the
 302    sequence being output.  It is null when no delayed branch
 303    sequence is being output, so it can be used as a test in the
 304    insn output code.
 305
 306    This variable is defined  in final.c.  */
 307 extern rtx final_sequence;
 308
 309 /* The line number of the beginning of the current function.  Various
 310    md code needs this so that it can output relative linenumbers.  */
 311
 312 #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers.  */
 313 extern int sdb_begin_function_line;
 314 #endif
 315
 316 /* File in which assembler code is being written.  */
 317
 318 #ifdef BUFSIZ
 319 extern FILE *asm_out_file;
 320 #endif
 321
 322 /* The first global object in the file.  */
 323 extern const char *first_global_object_name;
 324
 325 /* The first weak object in the file.  */
 326 extern const char *weak_global_object_name;
 327
 328 /* Nonzero if function being compiled doesn't contain any calls
 329    (ignoring the prologue and epilogue).  This is set prior to
 330    local register allocation and is valid for the remaining
 331    compiler passes.  */
 332
 333 extern int current_function_is_leaf;
 334
 335 /* Nonzero if function being compiled doesn't modify the stack pointer
 336    (ignoring the prologue and epilogue).  This is only valid after
 337    pass_stack_ptr_mod has run.  */
 338
 339 extern int current_function_sp_is_unchanging;
 340
 341 /* Nonzero if the function being compiled is a leaf function which only
 342    uses leaf registers.  This is valid after reload (specifically after
 343    sched2) and is useful only if the port defines LEAF_REGISTERS.  */
 344
 345 extern int current_function_uses_only_leaf_regs;
 346
 347 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern.  */
 348 extern rtx current_insn_predicate;
 349
 350 /* Last insn processed by final_scan_insn.  */
 351 extern rtx current_output_insn;
 352
 353 /* Nonzero while outputting an `asm' with operands.
 354    This means that inconsistencies are the user's fault, so don't die.
 355    The precise value is the insn being output, to pass to error_for_asm.  */
 356 extern rtx this_is_asm_operands;
 357
 358 /* Carry information from ASM_DECLARE_OBJECT_NAME
 359    to ASM_FINISH_DECLARE_OBJECT.  */
 360 extern int size_directive_output;
 361 extern tree last_assemble_variable_decl;
 362
 363 extern bool first_function_block_is_cold;
 364
 365 /* Decide whether DECL needs to be in a writable section.
 366    RELOC is the same as for SELECT_SECTION.  */
 367 extern bool decl_readonly_section (const_tree, int);
 368
 369 /* This can be used to compute RELOC for the function above, when
 370    given a constant expression.  */
 371 extern int compute_reloc_for_constant (tree);
 372
 373 /* User label prefix in effect for this compilation.  */
 374 extern const char *user_label_prefix;
 375
 376 /* Default target function prologue and epilogue assembler output.  */
 377 extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT);
 378
 379 /* Default target function switched text sections.  */
 380 extern void default_function_switched_text_sections (FILE *, tree, bool);
 381
 382 /* Default target hook that outputs nothing to a stream.  */
 383 extern void no_asm_to_stream (FILE *);
 384
 385 /* Flags controlling properties of a section.  */
 386 #define SECTION_ENTSIZE  0x000ff        /* entity size in section */
 387 #define SECTION_CODE     0x00100        /* contains code */
 388 #define SECTION_WRITE    0x00200        /* data is writable */
 389 #define SECTION_DEBUG    0x00400        /* contains debug data */
 390 #define SECTION_LINKONCE 0x00800        /* is linkonce */
 391 #define SECTION_SMALL    0x01000        /* contains "small data" */
 392 #define SECTION_BSS      0x02000        /* contains zeros only */
 393 #define SECTION_FORGET   0x04000        /* forget that we've entered the section */
 394 #define SECTION_MERGE    0x08000        /* contains mergeable data */
 395 #define SECTION_STRINGS  0x10000        /* contains zero terminated strings without
 396                                            embedded zeros */
 397 #define SECTION_OVERRIDE 0x20000        /* allow override of default flags */
 398 #define SECTION_TLS      0x40000        /* contains thread-local storage */
 399 #define SECTION_NOTYPE   0x80000        /* don't output @progbits */
 400 #define SECTION_DECLARED 0x100000       /* section has been used */
 401 #define SECTION_STYLE_MASK 0x600000     /* bits used for SECTION_STYLE */
 402 #define SECTION_COMMON   0x800000       /* contains common data */
 403 #define SECTION_RELRO    0x1000000      /* data is readonly after relocation processing */
 404 #define SECTION_EXCLUDE  0x2000000      /* discarded by the linker */
 405 #define SECTION_MACH_DEP 0x4000000      /* subsequent bits reserved for target */
 406
 407 /* This SECTION_STYLE is used for unnamed sections that we can switch
 408    to using a special assembler directive.  */
 409 #define SECTION_UNNAMED  0x000000
 410
 411 /* This SECTION_STYLE is used for named sections that we can switch
 412    to using a general section directive.  */
 413 #define SECTION_NAMED    0x200000
 414
 415 /* This SECTION_STYLE is used for sections that we cannot switch to at
 416    all.  The choice of section is implied by the directive that we use
 417    to declare the object.  */
 418 #define SECTION_NOSWITCH 0x400000
 419
 420 /* A helper function for default_elf_select_section and
 421    default_elf_unique_section.  Categorizes the DECL.  */
 422
 423 enum section_category
 424 {
 425   SECCAT_TEXT,
 426
 427   SECCAT_RODATA,
 428   SECCAT_RODATA_MERGE_STR,
 429   SECCAT_RODATA_MERGE_STR_INIT,
 430   SECCAT_RODATA_MERGE_CONST,
 431   SECCAT_SRODATA,
 432
 433   SECCAT_DATA,
 434
 435   /* To optimize loading of shared programs, define following subsections
 436      of data section:
 437         _REL    Contains data that has relocations, so they get grouped
 438                 together and dynamic linker will visit fewer pages in memory.
 439         _RO     Contains data that is otherwise read-only.  This is useful
 440                 with prelinking as most relocations won't be dynamically
 441                 linked and thus stay read only.
 442         _LOCAL  Marks data containing relocations only to local objects.
 443                 These relocations will get fully resolved by prelinking.  */
 444   SECCAT_DATA_REL,
 445   SECCAT_DATA_REL_LOCAL,
 446   SECCAT_DATA_REL_RO,
 447   SECCAT_DATA_REL_RO_LOCAL,
 448
 449   SECCAT_SDATA,
 450   SECCAT_TDATA,
 451
 452   SECCAT_BSS,
 453   SECCAT_SBSS,
 454   SECCAT_TBSS
 455 };
 456
 457 /* Information that is provided by all instances of the section type.  */
 458 struct GTY(()) section_common {
 459   /* The set of SECTION_* flags that apply to this section.  */
 460   unsigned int flags;
 461 };
 462
 463 /* Information about a SECTION_NAMED section.  */
 464 struct GTY(()) named_section {
 465   struct section_common common;
 466
 467   /* The name of the section.  */
 468   const char *name;
 469
 470   /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the
 471      section is associated.  */
 472   tree decl;
 473 };
 474
 475 /* A callback that writes the assembly code for switching to an unnamed
 476    section.  The argument provides callback-specific data.  */
 477 typedef void (*unnamed_section_callback) (const void *);
 478
 479 /* Information about a SECTION_UNNAMED section.  */
 480 struct GTY(()) unnamed_section {
 481   struct section_common common;
 482
 483   /* The callback used to switch to the section, and the data that
 484      should be passed to the callback.  */
 485   unnamed_section_callback GTY ((skip)) callback;
 486   const void *GTY ((skip)) data;
 487
 488   /* The next entry in the chain of unnamed sections.  */
 489   section *next;
 490 };
 491
 492 /* A callback that writes the assembly code for a decl in a
 493    SECTION_NOSWITCH section.  DECL is the decl that should be assembled
 494    and NAME is the name of its SYMBOL_REF.  SIZE is the size of the decl
 495    in bytes and ROUNDED is that size rounded up to the next
 496    BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary.
 497
 498    Return true if the callback used DECL_ALIGN to set the object's
 499    alignment.  A false return value implies that we are relying
 500    on the rounded size to align the decl.  */
 501 typedef bool (*noswitch_section_callback) (tree decl, const char *name,
 502                                            unsigned HOST_WIDE_INT size,
 503                                            unsigned HOST_WIDE_INT rounded);
 504
 505 /* Information about a SECTION_NOSWITCH section.  */
 506 struct GTY(()) noswitch_section {
 507   struct section_common common;
 508
 509   /* The callback used to assemble decls in this section.  */
 510   noswitch_section_callback GTY ((skip)) callback;
 511 };
 512
 513 /* Information about a section, which may be named or unnamed.  */
 514 union GTY ((desc ("SECTION_STYLE (&(%h))"))) section {
 515   struct section_common GTY ((skip)) common;
 516   struct named_section GTY ((tag ("SECTION_NAMED"))) named;
 517   struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed;
 518   struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch;
 519 };
 520
 521 /* Return the style of section SECT.  */
 522 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK)
 523
 524 struct object_block;
 525
 526 /* Special well-known sections.  */
 527 extern GTY(()) section *text_section;
 528 extern GTY(()) section *data_section;
 529 extern GTY(()) section *readonly_data_section;
 530 extern GTY(()) section *sdata_section;
 531 extern GTY(()) section *ctors_section;
 532 extern GTY(()) section *dtors_section;
 533 extern GTY(()) section *bss_section;
 534 extern GTY(()) section *sbss_section;
 535 extern GTY(()) section *exception_section;
 536 extern GTY(()) section *eh_frame_section;
 537 extern GTY(()) section *tls_comm_section;
 538 extern GTY(()) section *comm_section;
 539 extern GTY(()) section *lcomm_section;
 540 extern GTY(()) section *bss_noswitch_section;
 541
 542 extern GTY(()) section *in_section;
 543 extern GTY(()) bool in_cold_section_p;
 544
 545 extern section *get_unnamed_section (unsigned int, void (*) (const void *),
 546                                      const void *);
 547 extern section *get_section (const char *, unsigned int, tree);
 548 extern section *get_named_section (tree, const char *, int);
 549 extern section *get_variable_section (tree, bool);
 550 extern void place_block_symbol (rtx);
 551 extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT,
 552                                enum tls_model);
 553 extern section *mergeable_constant_section (enum machine_mode,
 554                                             unsigned HOST_WIDE_INT,
 555                                             unsigned int);
 556 extern section *function_section (tree);
 557 extern section *unlikely_text_section (void);
 558 extern section *current_function_section (void);
 559
 560 /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if
 561    not) section for PRIORITY.  */
 562 extern section *get_cdtor_priority_section (int, bool);
 563
 564 extern bool unlikely_text_section_p (section *);
 565 extern void switch_to_section (section *);
 566 extern void output_section_asm_op (const void *);
 567
 568 extern void record_tm_clone_pair (tree, tree);
 569 extern void finish_tm_clone_pairs (void);
 570 extern tree get_tm_clone_pair (tree);
 571
 572 extern void default_asm_output_source_filename (FILE *, const char *);
 573 extern void output_file_directive (FILE *, const char *);
 574
 575 extern unsigned int default_section_type_flags (tree, const char *, int);
 576
 577 extern bool have_global_bss_p (void);
 578 extern void default_no_named_section (const char *, unsigned int, tree);
 579 extern void default_elf_asm_named_section (const char *, unsigned int, tree);
 580 extern enum section_category categorize_decl_for_section (const_tree, int);
 581 extern void default_coff_asm_named_section (const char *, unsigned int, tree);
 582 extern void default_pe_asm_named_section (const char *, unsigned int, tree);
 583
 584 extern void default_named_section_asm_out_destructor (rtx, int);
 585 extern void default_dtor_section_asm_out_destructor (rtx, int);
 586 extern void default_named_section_asm_out_constructor (rtx, int);
 587 extern void default_ctor_section_asm_out_constructor (rtx, int);
 588
 589 extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT);
 590 extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT);
 591 extern void default_unique_section (tree, int);
 592 extern section *default_function_rodata_section (tree);
 593 extern section *default_no_function_rodata_section (tree);
 594 extern section *default_clone_table_section (void);
 595 extern section *default_select_rtx_section (enum machine_mode, rtx,
 596                                             unsigned HOST_WIDE_INT);
 597 extern section *default_elf_select_rtx_section (enum machine_mode, rtx,
 598                                                 unsigned HOST_WIDE_INT);
 599 extern void default_encode_section_info (tree, rtx, int);
 600 extern const char *default_strip_name_encoding (const char *);
 601 extern void default_asm_output_anchor (rtx);
 602 extern bool default_use_anchors_for_symbol_p (const_rtx);
 603 extern bool default_binds_local_p (const_tree);
 604 extern bool default_binds_local_p_1 (const_tree, int);
 605 extern void default_globalize_label (FILE *, const char *);
 606 extern void default_globalize_decl_name (FILE *, tree);
 607 extern void default_emit_unwind_label (FILE *, tree, int, int);
 608 extern void default_emit_except_table_label (FILE *);
 609 extern void default_generate_internal_label (char *, const char *,
 610                                              unsigned long);
 611 extern void default_internal_label (FILE *, const char *, unsigned long);
 612 extern void default_asm_declare_constant_name (FILE *, const char *,
 613                                                const_tree, HOST_WIDE_INT);
 614 extern void default_file_start (void);
 615 extern void file_end_indicate_exec_stack (void);
 616 extern void file_end_indicate_split_stack (void);
 617
 618 extern void default_elf_asm_output_external (FILE *file, tree,
 619                                              const char *);
 620 extern void default_elf_asm_output_limited_string (FILE *, const char *);
 621 extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int);
 622 extern void default_elf_internal_label (FILE *, const char *, unsigned long);
 623
 624 extern void default_elf_init_array_asm_out_constructor (rtx, int);
 625 extern void default_elf_fini_array_asm_out_destructor (rtx, int);
 626 extern int maybe_assemble_visibility (tree);
 627
 628 extern int default_address_cost (rtx, bool);
 629
 630 /* Output stack usage information.  */
 631 extern void output_stack_usage (void);
 632
 633 #endif /* ! GCC_OUTPUT_H */