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/* 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,
4
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007
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
/* Report inconsistency between the assembler template and the operands.
82
   In an `asm', it's the user's fault; otherwise, the compiler's fault.  */
83
extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1;
84
 
85
/* Output a string of assembler code, substituting insn operands.
86
   Defined in final.c.  */
87
extern void output_asm_insn (const char *, rtx *);
88
 
89
/* Compute a worst-case reference address of a branch so that it
90
   can be safely used in the presence of aligned labels.
91
   Defined in final.c.  */
92
extern int insn_current_reference_address (rtx);
93
 
94
/* Find the alignment associated with a CODE_LABEL.
95
   Defined in final.c.  */
96
extern int label_to_alignment (rtx);
97
 
98
/* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol.  */
99
extern void output_asm_label (rtx);
100
 
101
/* Print a memory reference operand for address X
102
   using machine-dependent assembler syntax.  */
103
extern void output_address (rtx);
104
 
105
/* Print an integer constant expression in assembler syntax.
106
   Addition and subtraction are the only arithmetic
107
   that may appear in these expressions.  */
108
extern void output_addr_const (FILE *, rtx);
109
 
110
/* Output a string of assembler code, substituting numbers, strings
111
   and fixed syntactic prefixes.  */
112
#if GCC_VERSION >= 3004
113
#define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m)
114
/* This is a magic identifier which allows GCC to figure out the type
115
   of HOST_WIDE_INT for %wd specifier checks.  You must issue this
116
   typedef before using the __asm_fprintf__ format attribute.  */
117
typedef HOST_WIDE_INT __gcc_host_wide_int__;
118
#else
119
#define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m)
120
#endif
121
 
122
extern void asm_fprintf (FILE *file, const char *p, ...)
123
     ATTRIBUTE_ASM_FPRINTF(2, 3);
124
 
125
/* Split up a CONST_DOUBLE or integer constant rtx into two rtx's for single
126
   words.  */
127
extern void split_double (rtx, rtx *, rtx *);
128
 
129
/* Return nonzero if this function has no function calls.  */
130
extern int leaf_function_p (void);
131
 
132
/* Return 1 if branch is a forward branch.
133
   Uses insn_shuid array, so it works only in the final pass.  May be used by
134
   output templates to add branch prediction hints, for example.  */
135
extern int final_forward_branch_p (rtx);
136
 
137
/* Return 1 if this function uses only the registers that can be
138
   safely renumbered.  */
139
extern int only_leaf_regs_used (void);
140
 
141
/* Scan IN_RTX and its subexpressions, and renumber all regs into those
142
   available in leaf functions.  */
143
extern void leaf_renumber_regs_insn (rtx);
144
 
145
/* Locate the proper template for the given insn-code.  */
146
extern const char *get_insn_template (int, rtx);
147
 
148
/* Functions in flow.c */
149
extern int regno_clobbered_at_setjmp (int);
150
 
151
/* Functions in varasm.c.  */
152
 
153
/* Declare DECL to be a weak symbol.  */
154
extern void declare_weak (tree);
155
/* Merge weak status.  */
156
extern void merge_weak (tree, tree);
157
 
158
/* Emit any pending weak declarations.  */
159
extern void weak_finish (void);
160
 
161
/* Decode an `asm' spec for a declaration as a register name.
162
   Return the register number, or -1 if nothing specified,
163
   or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized,
164
   or -3 if ASMSPEC is `cc' and is not recognized,
165
   or -4 if ASMSPEC is `memory' and is not recognized.
166
   Accept an exact spelling or a decimal number.
167
   Prefixes such as % are optional.  */
168
extern int decode_reg_name (const char *);
169
 
170
extern void assemble_alias (tree, tree);
171
 
172
extern void default_assemble_visibility (tree, int);
173
 
174
/* Output a string of literal assembler code
175
   for an `asm' keyword used between functions.  */
176
extern void assemble_asm (tree);
177
 
178
/* Output assembler code for the constant pool of a function and associated
179
   with defining the name of the function.  DECL describes the function.
180
   NAME is the function's name.  For the constant pool, we use the current
181
   constant pool data.  */
182
extern void assemble_start_function (tree, const char *);
183
 
184
/* Output assembler code associated with defining the size of the
185
   function.  DECL describes the function.  NAME is the function's name.  */
186
extern void assemble_end_function (tree, const char *);
187
 
188
/* Assemble everything that is needed for a variable or function declaration.
189
   Not used for automatic variables, and not used for function definitions.
190
   Should not be called for variables of incomplete structure type.
191
 
192
   TOP_LEVEL is nonzero if this variable has file scope.
193
   AT_END is nonzero if this is the special handling, at end of compilation,
194
   to define things that have had only tentative definitions.
195
   DONT_OUTPUT_DATA if nonzero means don't actually output the
196
   initial value (that will be done by the caller).  */
197
extern void assemble_variable (tree, int, int, int);
198
 
199
/* Compute the alignment of variable specified by DECL.
200
   DONT_OUTPUT_DATA is from assemble_variable.  */
201
extern void align_variable (tree decl, bool dont_output_data);
202
 
203
/* Output something to declare an external symbol to the assembler.
204
   (Most assemblers don't need this, so we normally output nothing.)
205
   Do nothing if DECL is not external.  */
206
extern void assemble_external (tree);
207
 
208
/* Assemble code to leave SIZE bytes of zeros.  */
209
extern void assemble_zeros (unsigned HOST_WIDE_INT);
210
 
211
/* Assemble an alignment pseudo op for an ALIGN-bit boundary.  */
212
extern void assemble_align (int);
213
 
214
/* Assemble a string constant with the specified C string as contents.  */
215
extern void assemble_string (const char *, int);
216
 
217
/* Similar, for calling a library function FUN.  */
218
extern void assemble_external_libcall (rtx);
219
 
220
/* Assemble a label named NAME.  */
221
extern void assemble_label (const char *);
222
 
223
/* Output to FILE (an assembly file) a reference to NAME.  If NAME
224
   starts with a *, the rest of NAME is output verbatim.  Otherwise
225
   NAME is transformed in a target-specific way (usually by the
226
   addition of an underscore).  */
227
extern void assemble_name_raw (FILE *, const char *);
228
 
229
/* Like assemble_name_raw, but should be used when NAME might refer to
230
   an entity that is also represented as a tree (like a function or
231
   variable).  If NAME does refer to such an entity, that entity will
232
   be marked as referenced.  */
233
extern void assemble_name (FILE *, const char *);
234
 
235
/* Return the assembler directive for creating a given kind of integer
236
   object.  SIZE is the number of bytes in the object and ALIGNED_P
237
   indicates whether it is known to be aligned.  Return NULL if the
238
   assembly dialect has no such directive.
239
 
240
   The returned string should be printed at the start of a new line and
241
   be followed immediately by the object's initial value.  */
242
extern const char *integer_asm_op (int, int);
243
 
244
/* Use directive OP to assemble an integer object X.  Print OP at the
245
   start of the line, followed immediately by the value of X.  */
246
extern void assemble_integer_with_op (const char *, rtx);
247
 
248
/* The default implementation of the asm_out.integer target hook.  */
249
extern bool default_assemble_integer (rtx, unsigned int, int);
250
 
251
/* Assemble the integer constant X into an object of SIZE bytes.  ALIGN is
252
   the alignment of the integer in bits.  Return 1 if we were able to output
253
   the constant, otherwise 0.  If FORCE is nonzero the constant must
254
   be outputable. */
255
extern bool assemble_integer (rtx, unsigned, unsigned, int);
256
 
257
/* An interface to assemble_integer for the common case in which a value is
258
   fully aligned and must be printed.  VALUE is the value of the integer
259
   object and SIZE is the number of bytes it contains.  */
260
#define assemble_aligned_integer(SIZE, VALUE) \
261
  assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1)
262
 
263
#ifdef REAL_VALUE_TYPE_SIZE
264
/* Assemble the floating-point constant D into an object of size MODE.  */
265
extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned);
266
#endif
267
 
268
/* Return the size of the constant pool.  */
269
extern int get_pool_size (void);
270
 
271
#ifdef HAVE_peephole
272
extern rtx peephole (rtx);
273
#endif
274
 
275
extern void output_shared_constant_pool (void);
276
 
277
extern void output_object_blocks (void);
278
 
279
/* Whether a constructor CTOR is a valid static constant initializer if all
280
   its elements are.  This used to be internal to initializer_constant_valid_p
281
   and has been exposed to let other functions like categorize_ctor_elements
282
   evaluate the property while walking a constructor for other purposes.  */
283
 
284
extern bool constructor_static_from_elts_p (tree);
285
 
286
/* Return nonzero if VALUE is a valid constant-valued expression
287
   for use in initializing a static variable; one that can be an
288
   element of a "constant" initializer.
289
 
290
   Return null_pointer_node if the value is absolute;
291
   if it is relocatable, return the variable that determines the relocation.
292
   We assume that VALUE has been folded as much as possible;
293
   therefore, we do not need to check for such things as
294
   arithmetic-combinations of integers.  */
295
extern tree initializer_constant_valid_p (tree, tree);
296
 
297
/* Output assembler code for constant EXP to FILE, with no label.
298
   This includes the pseudo-op such as ".int" or ".byte", and a newline.
299
   Assumes output_addressed_constants has been done on EXP already.
300
 
301
   Generate exactly SIZE bytes of assembler data, padding at the end
302
   with zeros if necessary.  SIZE must always be specified.
303
 
304
   ALIGN is the alignment in bits that may be assumed for the data.  */
305
extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int);
306
 
307
/* When outputting delayed branch sequences, this rtx holds the
308
   sequence being output.  It is null when no delayed branch
309
   sequence is being output, so it can be used as a test in the
310
   insn output code.
311
 
312
   This variable is defined  in final.c.  */
313
extern rtx final_sequence;
314
 
315
/* The line number of the beginning of the current function.  Various
316
   md code needs this so that it can output relative linenumbers.  */
317
 
318
#ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers.  */
319
extern int sdb_begin_function_line;
320
#endif
321
 
322
/* File in which assembler code is being written.  */
323
 
324
#ifdef BUFSIZ
325
extern FILE *asm_out_file;
326
#endif
327
 
328
/* The first global object in the file.  */
329
extern const char *first_global_object_name;
330
 
331
/* The first weak object in the file.  */
332
extern const char *weak_global_object_name;
333
 
334
/* Nonzero if function being compiled doesn't contain any calls
335
   (ignoring the prologue and epilogue).  This is set prior to
336
   local register allocation and is valid for the remaining
337
   compiler passes.  */
338
 
339
extern int current_function_is_leaf;
340
 
341
/* Nonzero if function being compiled doesn't modify the stack pointer
342
   (ignoring the prologue and epilogue).  This is only valid after
343
   life_analysis has run.  */
344
 
345
extern int current_function_sp_is_unchanging;
346
 
347
/* Nonzero if the function being compiled is a leaf function which only
348
   uses leaf registers.  This is valid after reload (specifically after
349
   sched2) and is useful only if the port defines LEAF_REGISTERS.  */
350
 
351
extern int current_function_uses_only_leaf_regs;
352
 
353
/* Default file in which to dump debug output.  */
354
 
355
#ifdef BUFSIZ
356
extern FILE *dump_file;
357
#endif
358
 
359
/* Nonnull if the insn currently being emitted was a COND_EXEC pattern.  */
360
extern rtx current_insn_predicate;
361
 
362
/* Last insn processed by final_scan_insn.  */
363
extern rtx current_output_insn;
364
 
365
/* Nonzero while outputting an `asm' with operands.
366
   This means that inconsistencies are the user's fault, so don't die.
367
   The precise value is the insn being output, to pass to error_for_asm.  */
368
extern rtx this_is_asm_operands;
369
 
370
/* Carry information from ASM_DECLARE_OBJECT_NAME
371
   to ASM_FINISH_DECLARE_OBJECT.  */
372
extern int size_directive_output;
373
extern tree last_assemble_variable_decl;
374
 
375
extern bool first_function_block_is_cold;
376
 
377
/* Decide whether DECL needs to be in a writable section.
378
   RELOC is the same as for SELECT_SECTION.  */
379
extern bool decl_readonly_section (tree, int);
380
 
381
/* This can be used to compute RELOC for the function above, when
382
   given a constant expression.  */
383
extern int compute_reloc_for_constant (tree);
384
 
385
/* User label prefix in effect for this compilation.  */
386
extern const char *user_label_prefix;
387
 
388
/* Default target function prologue and epilogue assembler output.  */
389
extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT);
390
 
391
/* Default target hook that outputs nothing to a stream.  */
392
extern void no_asm_to_stream (FILE *);
393
 
394
/* Flags controlling properties of a section.  */
395
#define SECTION_ENTSIZE  0x000ff        /* entity size in section */
396
#define SECTION_CODE     0x00100        /* contains code */
397
#define SECTION_WRITE    0x00200        /* data is writable */
398
#define SECTION_DEBUG    0x00400        /* contains debug data */
399
#define SECTION_LINKONCE 0x00800        /* is linkonce */
400
#define SECTION_SMALL    0x01000        /* contains "small data" */
401
#define SECTION_BSS      0x02000        /* contains zeros only */
402
#define SECTION_FORGET   0x04000        /* forget that we've entered the section */
403
#define SECTION_MERGE    0x08000        /* contains mergeable data */
404
#define SECTION_STRINGS  0x10000        /* contains zero terminated strings without
405
                                           embedded zeros */
406
#define SECTION_OVERRIDE 0x20000        /* allow override of default flags */
407
#define SECTION_TLS      0x40000        /* contains thread-local storage */
408
#define SECTION_NOTYPE   0x80000        /* don't output @progbits */
409
#define SECTION_DECLARED 0x100000       /* section has been used */
410
#define SECTION_STYLE_MASK 0x600000     /* bits used for SECTION_STYLE */
411
#define SECTION_COMMON   0x800000       /* contains common data */
412
#define SECTION_MACH_DEP 0x1000000      /* subsequent bits reserved for target */
413
 
414
/* This SECTION_STYLE is used for unnamed sections that we can switch
415
   to using a special assembler directive.  */
416
#define SECTION_UNNAMED  0x000000
417
 
418
/* This SECTION_STYLE is used for named sections that we can switch
419
   to using a general section directive.  */
420
#define SECTION_NAMED    0x200000
421
 
422
/* This SECTION_STYLE is used for sections that we cannot switch to at
423
   all.  The choice of section is implied by the directive that we use
424
   to declare the object.  */
425
#define SECTION_NOSWITCH 0x400000
426
 
427
/* A helper function for default_elf_select_section and
428
   default_elf_unique_section.  Categorizes the DECL.  */
429
 
430
enum section_category
431
{
432
  SECCAT_TEXT,
433
 
434
  SECCAT_RODATA,
435
  SECCAT_RODATA_MERGE_STR,
436
  SECCAT_RODATA_MERGE_STR_INIT,
437
  SECCAT_RODATA_MERGE_CONST,
438
  SECCAT_SRODATA,
439
 
440
  SECCAT_DATA,
441
 
442
  /* To optimize loading of shared programs, define following subsections
443
     of data section:
444
        _REL    Contains data that has relocations, so they get grouped
445
                together and dynamic linker will visit fewer pages in memory.
446
        _RO     Contains data that is otherwise read-only.  This is useful
447
                with prelinking as most relocations won't be dynamically
448
                linked and thus stay read only.
449
        _LOCAL  Marks data containing relocations only to local objects.
450
                These relocations will get fully resolved by prelinking.  */
451
  SECCAT_DATA_REL,
452
  SECCAT_DATA_REL_LOCAL,
453
  SECCAT_DATA_REL_RO,
454
  SECCAT_DATA_REL_RO_LOCAL,
455
 
456
  SECCAT_SDATA,
457
  SECCAT_TDATA,
458
 
459
  SECCAT_BSS,
460
  SECCAT_SBSS,
461
  SECCAT_TBSS
462
};
463
 
464
/* Information that is provided by all instances of the section type.  */
465
struct section_common GTY(()) {
466
  /* The set of SECTION_* flags that apply to this section.  */
467
  unsigned int flags;
468
};
469
 
470
/* Information about a SECTION_NAMED section.  */
471
struct named_section GTY(()) {
472
  struct section_common common;
473
 
474
  /* The name of the section.  */
475
  const char *name;
476
 
477
  /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the
478
     section is associated.  */
479
  tree decl;
480
};
481
 
482
/* A callback that writes the assembly code for switching to an unnamed
483
   section.  The argument provides callback-specific data.  */
484
typedef void (*unnamed_section_callback) (const void *);
485
 
486
/* Information about a SECTION_UNNAMED section.  */
487
struct unnamed_section GTY(()) {
488
  struct section_common common;
489
 
490
  /* The callback used to switch to the section, and the data that
491
     should be passed to the callback.  */
492
  unnamed_section_callback GTY ((skip)) callback;
493
  const void *GTY ((skip)) data;
494
 
495
  /* The next entry in the chain of unnamed sections.  */
496
  section *next;
497
};
498
 
499
/* A callback that writes the assembly code for a decl in a
500
   SECTION_NOSWITCH section.  DECL is the decl that should be assembled
501
   and NAME is the name of its SYMBOL_REF.  SIZE is the size of the decl
502
   in bytes and ROUNDED is that size rounded up to the next
503
   BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary.
504
 
505
   Return true if the callback used DECL_ALIGN to set the object's
506
   alignment.  A false return value implies that we are relying
507
   on the rounded size to align the decl.  */
508
typedef bool (*noswitch_section_callback) (tree decl, const char *name,
509
                                           unsigned HOST_WIDE_INT size,
510
                                           unsigned HOST_WIDE_INT rounded);
511
 
512
/* Information about a SECTION_NOSWITCH section.  */
513
struct noswitch_section GTY(()) {
514
  struct section_common common;
515
 
516
  /* The callback used to assemble decls in this section.  */
517
  noswitch_section_callback GTY ((skip)) callback;
518
};
519
 
520
/* Information about a section, which may be named or unnamed.  */
521
union section GTY ((desc ("SECTION_STYLE (&(%h))")))
522
{
523
  struct section_common GTY ((skip)) common;
524
  struct named_section GTY ((tag ("SECTION_NAMED"))) named;
525
  struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed;
526
  struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch;
527
};
528
 
529
/* Return the style of section SECT.  */
530
#define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK)
531
 
532
struct object_block;
533
 
534
/* Special well-known sections.  */
535
extern GTY(()) section *text_section;
536
extern GTY(()) section *data_section;
537
extern GTY(()) section *readonly_data_section;
538
extern GTY(()) section *sdata_section;
539
extern GTY(()) section *ctors_section;
540
extern GTY(()) section *dtors_section;
541
extern GTY(()) section *bss_section;
542
extern GTY(()) section *sbss_section;
543
extern GTY(()) section *exception_section;
544
extern GTY(()) section *eh_frame_section;
545
extern GTY(()) section *tls_comm_section;
546
extern GTY(()) section *comm_section;
547
extern GTY(()) section *lcomm_section;
548
extern GTY(()) section *bss_noswitch_section;
549
 
550
extern GTY(()) section *in_section;
551
extern GTY(()) bool in_cold_section_p;
552
 
553
extern section *get_unnamed_section (unsigned int, void (*) (const void *),
554
                                     const void *);
555
extern section *get_section (const char *, unsigned int, tree);
556
extern section *get_named_section (tree, const char *, int);
557
extern void place_block_symbol (rtx);
558
extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT,
559
                               enum tls_model);
560
extern section *mergeable_constant_section (enum machine_mode,
561
                                            unsigned HOST_WIDE_INT,
562
                                            unsigned int);
563
extern section *function_section (tree);
564
extern section *unlikely_text_section (void);
565
extern section *current_function_section (void);
566
 
567
extern bool unlikely_text_section_p (section *);
568
extern void switch_to_section (section *);
569
extern void output_section_asm_op (const void *);
570
 
571
extern unsigned int default_section_type_flags (tree, const char *, int);
572
 
573
extern bool have_global_bss_p (void);
574
extern void default_no_named_section (const char *, unsigned int, tree);
575
extern void default_elf_asm_named_section (const char *, unsigned int, tree);
576
extern enum section_category categorize_decl_for_section (tree, int);
577
extern void default_coff_asm_named_section (const char *, unsigned int, tree);
578
extern void default_pe_asm_named_section (const char *, unsigned int, tree);
579
 
580
extern void default_stabs_asm_out_destructor (rtx, int);
581
extern void default_named_section_asm_out_destructor (rtx, int);
582
extern void default_dtor_section_asm_out_destructor (rtx, int);
583
extern void default_stabs_asm_out_constructor (rtx, int);
584
extern void default_named_section_asm_out_constructor (rtx, int);
585
extern void default_ctor_section_asm_out_constructor (rtx, int);
586
 
587
extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT);
588
extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT);
589
extern void default_unique_section (tree, int);
590
extern section *default_function_rodata_section (tree);
591
extern section *default_no_function_rodata_section (tree);
592
extern section *default_select_rtx_section (enum machine_mode, rtx,
593
                                            unsigned HOST_WIDE_INT);
594
extern section *default_elf_select_rtx_section (enum machine_mode, rtx,
595
                                                unsigned HOST_WIDE_INT);
596
extern void default_encode_section_info (tree, rtx, int);
597
extern const char *default_strip_name_encoding (const char *);
598
extern void default_asm_output_anchor (rtx);
599
extern bool default_use_anchors_for_symbol_p (rtx);
600
extern bool default_binds_local_p (tree);
601
extern bool default_binds_local_p_1 (tree, int);
602
extern void default_globalize_label (FILE *, const char *);
603
extern void default_emit_unwind_label (FILE *, tree, int, int);
604
extern void default_emit_except_table_label (FILE *);
605
extern void default_internal_label (FILE *, const char *, unsigned long);
606
extern void default_file_start (void);
607
extern void file_end_indicate_exec_stack (void);
608
extern bool default_valid_pointer_mode (enum machine_mode);
609
 
610
extern int default_address_cost (rtx);
611
 
612
/* dbxout helper functions */
613
#if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO
614
 
615
extern void dbxout_int (int);
616
extern void dbxout_stabd (int, int);
617
extern void dbxout_begin_stabn (int);
618
extern void dbxout_begin_stabn_sline (int);
619
extern void dbxout_begin_empty_stabs (int);
620
extern void dbxout_begin_simple_stabs (const char *, int);
621
extern void dbxout_begin_simple_stabs_desc (const char *, int, int);
622
 
623
extern void dbxout_stab_value_zero (void);
624
extern void dbxout_stab_value_label (const char *);
625
extern void dbxout_stab_value_label_diff (const char *, const char *);
626
extern void dbxout_stab_value_internal_label (const char *, int *);
627
extern void dbxout_stab_value_internal_label_diff (const char *, int *,
628
                                                   const char *);
629
 
630
#endif
631
 
632
#endif /* ! GCC_OUTPUT_H */

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