1 | /* Declarations for insn-output.cc and other code to write to asm_out_file. |
2 | These functions are defined in final.cc, and varasm.cc. |
3 | Copyright (C) 1987-2024 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.cc before most kinds of output. */ |
33 | extern void app_disable (void); |
34 | |
35 | /* Return the number of slots filled in the current |
36 | delayed branch sequence (we don't count the insn needing the |
37 | delay slot). Zero if not in a delayed branch sequence. */ |
38 | extern int dbr_sequence_length (void); |
39 | |
40 | /* Indicate that branch shortening hasn't yet been done. */ |
41 | extern void init_insn_lengths (void); |
42 | |
43 | /* Obtain the current length of an insn. If branch shortening has been done, |
44 | get its actual length. Otherwise, get its maximum length. */ |
45 | extern int get_attr_length (rtx_insn *); |
46 | |
47 | /* Obtain the current length of an insn. If branch shortening has been done, |
48 | get its actual length. Otherwise, get its minimum length. */ |
49 | extern int get_attr_min_length (rtx_insn *); |
50 | |
51 | /* Make a pass over all insns and compute their actual lengths by shortening |
52 | any branches of variable length if possible. */ |
53 | extern void shorten_branches (rtx_insn *); |
54 | |
55 | const char *get_some_local_dynamic_name (); |
56 | |
57 | /* Output assembler code for the start of a function, |
58 | and initialize some of the variables in this file |
59 | for the new function. The label for the function and associated |
60 | assembler pseudo-ops have already been output in |
61 | `assemble_start_function'. */ |
62 | extern void final_start_function (rtx_insn *, FILE *, int); |
63 | |
64 | /* Output assembler code for the end of a function. |
65 | For clarity, args are same as those of `final_start_function' |
66 | even though not all of them are needed. */ |
67 | extern void final_end_function (void); |
68 | |
69 | /* Output assembler code for some insns: all or part of a function. */ |
70 | extern void final (rtx_insn *, FILE *, int); |
71 | |
72 | /* The final scan for one insn, INSN. Args are same as in `final', except |
73 | that INSN is the insn being scanned. Value returned is the next insn to |
74 | be scanned. */ |
75 | extern rtx_insn *final_scan_insn (rtx_insn *, FILE *, int, int, int *); |
76 | |
77 | /* Replace a SUBREG with a REG or a MEM, based on the thing it is a |
78 | subreg of. */ |
79 | extern rtx alter_subreg (rtx *, bool); |
80 | |
81 | /* Print an operand using machine-dependent assembler syntax. */ |
82 | extern void output_operand (rtx, int); |
83 | |
84 | /* Report inconsistency between the assembler template and the operands. |
85 | In an `asm', it's the user's fault; otherwise, the compiler's fault. */ |
86 | extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1; |
87 | |
88 | /* Output a string of assembler code, substituting insn operands. |
89 | Defined in final.cc. */ |
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.cc. */ |
95 | extern int insn_current_reference_address (rtx_insn *); |
96 | |
97 | /* Find the alignment associated with a CODE_LABEL. |
98 | Defined in final.cc. */ |
99 | extern align_flags label_to_alignment (rtx); |
100 | |
101 | /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ |
102 | extern void output_asm_label (rtx); |
103 | |
104 | /* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */ |
105 | extern void mark_symbol_refs_as_used (rtx); |
106 | |
107 | /* Print a memory reference operand for address X with access mode MODE |
108 | using machine-dependent assembler syntax. */ |
109 | extern void output_address (machine_mode, rtx); |
110 | |
111 | /* Print an integer constant expression in assembler syntax. |
112 | Addition and subtraction are the only arithmetic |
113 | that may appear in these expressions. */ |
114 | extern void output_addr_const (FILE *, rtx); |
115 | |
116 | /* Output a string of assembler code, substituting numbers, strings |
117 | and fixed syntactic prefixes. */ |
118 | #if GCC_VERSION >= 3004 |
119 | #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m) |
120 | #else |
121 | #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m) |
122 | #endif |
123 | |
124 | extern void fprint_whex (FILE *, unsigned HOST_WIDE_INT); |
125 | extern void fprint_ul (FILE *, unsigned long); |
126 | extern int sprint_ul (char *, unsigned long); |
127 | |
128 | extern void asm_fprintf (FILE *file, const char *p, ...) |
129 | ATTRIBUTE_ASM_FPRINTF(2, 3); |
130 | |
131 | /* Return true if this function has no function calls. */ |
132 | extern bool leaf_function_p (void); |
133 | |
134 | /* Return true if branch is a forward branch. |
135 | Uses insn_shuid array, so it works only in the final pass. May be used by |
136 | output templates to add branch prediction hints, for example. */ |
137 | extern bool final_forward_branch_p (rtx_insn *); |
138 | |
139 | /* Return true if this function uses only the registers that can be |
140 | safely renumbered. */ |
141 | extern bool only_leaf_regs_used (void); |
142 | |
143 | /* Scan IN_RTX and its subexpressions, and renumber all regs into those |
144 | available in leaf functions. */ |
145 | extern void leaf_renumber_regs_insn (rtx); |
146 | |
147 | /* Locate the proper template for the given insn-code. */ |
148 | extern const char *get_insn_template (int, rtx_insn *); |
149 | |
150 | /* Functions in varasm.cc. */ |
151 | |
152 | /* Emit any pending weak declarations. */ |
153 | extern void weak_finish (void); |
154 | |
155 | /* Decode an `asm' spec for a declaration as a register name. |
156 | Return the register number, or -1 if nothing specified, |
157 | or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, |
158 | or -3 if ASMSPEC is `cc' and is not recognized, |
159 | or -4 if ASMSPEC is `memory' and is not recognized. |
160 | Accept an exact spelling or a decimal number. |
161 | Prefixes such as % are optional. */ |
162 | extern int decode_reg_name (const char *); |
163 | |
164 | /* Similar to decode_reg_name, but takes an extra parameter that is a |
165 | pointer to the number of (internal) registers described by the |
166 | external name. */ |
167 | extern int decode_reg_name_and_count (const char *, int *); |
168 | |
169 | extern void do_assemble_alias (tree, tree); |
170 | extern void do_assemble_symver (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 | /* Get the function's name from a decl, as described by its RTL. */ |
179 | extern const char *get_fnname_from_decl (tree); |
180 | |
181 | /* Output function label, possibly with accompanying metadata. No additional |
182 | code or data is output after the label. */ |
183 | extern void assemble_function_label_raw (FILE *, const char *); |
184 | |
185 | /* Finish outputting function label. Needs to be called when outputting |
186 | function label without using assemble_function_label_raw (). */ |
187 | extern void assemble_function_label_final (void); |
188 | |
189 | /* Output assembler code for the constant pool of a function and associated |
190 | with defining the name of the function. DECL describes the function. |
191 | NAME is the function's name. For the constant pool, we use the current |
192 | constant pool data. */ |
193 | extern void assemble_start_function (tree, const char *); |
194 | |
195 | /* Output assembler code associated with defining the size of the |
196 | function. DECL describes the function. NAME is the function's name. */ |
197 | extern void assemble_end_function (tree, const char *); |
198 | |
199 | /* Assemble everything that is needed for a variable or function declaration. |
200 | Not used for automatic variables, and not used for function definitions. |
201 | Should not be called for variables of incomplete structure type. |
202 | |
203 | TOP_LEVEL is nonzero if this variable has file scope. |
204 | AT_END is nonzero if this is the special handling, at end of compilation, |
205 | to define things that have had only tentative definitions. |
206 | DONT_OUTPUT_DATA if nonzero means don't actually output the |
207 | initial value (that will be done by the caller). */ |
208 | extern void assemble_variable (tree, int, int, int); |
209 | |
210 | /* Assemble everything that is needed for a variable declaration that has |
211 | no definition in the current translation unit. */ |
212 | extern void assemble_undefined_decl (tree); |
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 (unsigned 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 | /* Return NAME that should actually be emitted, looking through |
245 | transparent aliases. If NAME refers to an entity that is also |
246 | represented as a tree (like a function or variable), mark the entity |
247 | as referenced. */ |
248 | extern const char *assemble_name_resolve (const char *); |
249 | |
250 | /* Like assemble_name_raw, but should be used when NAME might refer to |
251 | an entity that is also represented as a tree (like a function or |
252 | variable). If NAME does refer to such an entity, that entity will |
253 | be marked as referenced. */ |
254 | extern void assemble_name (FILE *, const char *); |
255 | |
256 | /* Return the assembler directive for creating a given kind of integer |
257 | object. SIZE is the number of bytes in the object and ALIGNED_P |
258 | indicates whether it is known to be aligned. Return NULL if the |
259 | assembly dialect has no such directive. |
260 | |
261 | The returned string should be printed at the start of a new line and |
262 | be followed immediately by the object's initial value. */ |
263 | extern const char *integer_asm_op (int, int); |
264 | |
265 | /* Use directive OP to assemble an integer object X. Print OP at the |
266 | start of the line, followed immediately by the value of X. */ |
267 | extern void assemble_integer_with_op (const char *, rtx); |
268 | |
269 | /* The default implementation of the asm_out.integer target hook. */ |
270 | extern bool default_assemble_integer (rtx, unsigned int, int); |
271 | |
272 | /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is |
273 | the alignment of the integer in bits. Return 1 if we were able to output |
274 | the constant, otherwise 0. If FORCE is nonzero the constant must |
275 | be outputable. */ |
276 | extern bool assemble_integer (rtx, unsigned, unsigned, int); |
277 | |
278 | /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL) |
279 | is NULL. */ |
280 | extern section *get_named_text_section (tree, const char *, const char *); |
281 | |
282 | /* An interface to assemble_integer for the common case in which a value is |
283 | fully aligned and must be printed. VALUE is the value of the integer |
284 | object and SIZE is the number of bytes it contains. */ |
285 | #define assemble_aligned_integer(SIZE, VALUE) \ |
286 | assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) |
287 | |
288 | /* Assemble the floating-point constant D into an object of size MODE. ALIGN |
289 | is the alignment of the constant in bits. If REVERSE is true, D is output |
290 | in reverse storage order. */ |
291 | extern void assemble_real (REAL_VALUE_TYPE, scalar_float_mode, unsigned, |
292 | bool = false); |
293 | |
294 | /* Write the address of the entity given by SYMBOL to SEC. */ |
295 | extern void assemble_addr_to_section (rtx, section *); |
296 | |
297 | /* Return TRUE if and only if the constant pool has no entries. Note |
298 | that even entries we might end up choosing not to emit are counted |
299 | here, so there is the potential for missed optimizations. */ |
300 | extern bool constant_pool_empty_p (void); |
301 | |
302 | extern rtx_insn *peephole (rtx_insn *); |
303 | |
304 | extern void output_shared_constant_pool (void); |
305 | |
306 | extern void output_object_blocks (void); |
307 | |
308 | extern void output_quoted_string (FILE *, const char *); |
309 | |
310 | /* When outputting delayed branch sequences, this rtx holds the |
311 | sequence being output. It is null when no delayed branch |
312 | sequence is being output, so it can be used as a test in the |
313 | insn output code. |
314 | |
315 | This variable is defined in final.cc. */ |
316 | extern rtx_sequence *final_sequence; |
317 | |
318 | /* File in which assembler code is being written. */ |
319 | |
320 | #ifdef BUFSIZ |
321 | extern FILE *asm_out_file; |
322 | #endif |
323 | |
324 | /* The first global object in the file. */ |
325 | extern const char *first_global_object_name; |
326 | |
327 | /* The first weak object in the file. */ |
328 | extern const char *weak_global_object_name; |
329 | |
330 | /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ |
331 | extern rtx current_insn_predicate; |
332 | |
333 | /* Last insn processed by final_scan_insn. */ |
334 | extern rtx_insn *current_output_insn; |
335 | |
336 | /* Nonzero while outputting an `asm' with operands. |
337 | This means that inconsistencies are the user's fault, so don't die. |
338 | The precise value is the insn being output, to pass to error_for_asm. */ |
339 | extern const rtx_insn *this_is_asm_operands; |
340 | |
341 | /* Carry information from ASM_DECLARE_OBJECT_NAME |
342 | to ASM_FINISH_DECLARE_OBJECT. */ |
343 | extern int size_directive_output; |
344 | extern tree last_assemble_variable_decl; |
345 | |
346 | extern bool first_function_block_is_cold; |
347 | |
348 | /* Decide whether DECL needs to be in a writable section. |
349 | RELOC is the same as for SELECT_SECTION. */ |
350 | extern bool decl_readonly_section (const_tree, int); |
351 | |
352 | /* This can be used to compute RELOC for the function above, when |
353 | given a constant expression. */ |
354 | extern int compute_reloc_for_constant (tree); |
355 | |
356 | /* This can be used to compute RELOC for get_variable_section. */ |
357 | extern int compute_reloc_for_var (tree); |
358 | |
359 | /* User label prefix in effect for this compilation. */ |
360 | extern const char *user_label_prefix; |
361 | |
362 | /* Default target function prologue and epilogue assembler output. */ |
363 | extern void default_function_pro_epilogue (FILE *); |
364 | |
365 | /* Default target function switched text sections. */ |
366 | extern void default_function_switched_text_sections (FILE *, tree, bool); |
367 | |
368 | /* Default target hook that outputs nothing to a stream. */ |
369 | extern void no_asm_to_stream (FILE *); |
370 | |
371 | /* Flags controlling properties of a section. */ |
372 | enum section_flag |
373 | { |
374 | /* This SECTION_STYLE is used for unnamed sections that we can switch |
375 | to using a special assembler directive. */ |
376 | SECTION_UNNAMED = 0, |
377 | |
378 | SECTION_ENTSIZE = (1UL << 8) - 1, /* entity size in section */ |
379 | SECTION_CODE = 1UL << 8, /* contains code */ |
380 | SECTION_WRITE = 1UL << 9, /* data is writable */ |
381 | |
382 | SECTION_DEBUG = 1UL << 10, /* contains debug data */ |
383 | SECTION_LINKONCE = 1UL << 11, /* is linkonce */ |
384 | SECTION_SMALL = 1UL << 12, /* contains "small data" */ |
385 | SECTION_BSS = 1UL << 13, /* contains zeros only */ |
386 | SECTION_MERGE = 1UL << 14, /* contains mergeable data */ |
387 | SECTION_STRINGS = 1UL << 15, /* contains zero terminated strings |
388 | without embedded zeros */ |
389 | SECTION_OVERRIDE = 1UL << 16, /* allow override of default flags */ |
390 | SECTION_TLS = 1UL << 17, /* contains thread-local storage */ |
391 | SECTION_NOTYPE = 1UL << 18, /* don't output @progbits */ |
392 | SECTION_DECLARED = 1UL << 19, /* section has been used */ |
393 | |
394 | /* This SECTION_STYLE is used for named sections that we can switch |
395 | to using a general section directive. */ |
396 | SECTION_NAMED = 1UL << 20, |
397 | |
398 | /* This SECTION_STYLE is used for sections that we cannot switch to at |
399 | all. The choice of section is implied by the directive that we use |
400 | to declare the object. */ |
401 | SECTION_NOSWITCH = 1UL << 21, |
402 | |
403 | /* bits used for SECTION_STYLE */ |
404 | SECTION_STYLE_MASK = SECTION_NAMED | SECTION_NOSWITCH, |
405 | |
406 | SECTION_COMMON = 1UL << 22, /* contains common data */ |
407 | SECTION_RELRO = 1UL << 23, /* data is readonly after |
408 | relocation processing */ |
409 | SECTION_EXCLUDE = 1UL << 24, /* discarded by the linker */ |
410 | SECTION_RETAIN = 1UL << 25, /* retained by the linker. */ |
411 | SECTION_LINK_ORDER = 1UL << 26, /* section needs link-order. */ |
412 | |
413 | /* NB: The maximum SECTION_MACH_DEP is (1UL << 28) since AVR needs 4 bits |
414 | in SECTION_MACH_DEP. */ |
415 | SECTION_MACH_DEP = 1UL << 27, |
416 | |
417 | /* subsequent bits reserved for target */ |
418 | }; |
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 char *); |
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 ((callback)) callback; |
486 | const char *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 ((callback)) callback; |
511 | }; |
512 | |
513 | /* Information about a section, which may be named or unnamed. */ |
514 | union GTY ((desc ("SECTION_STYLE (&(%h))" ), for_user)) 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 char *), |
546 | const char *); |
547 | extern section *get_section (const char *, unsigned int, tree, |
548 | bool not_existing = false); |
549 | extern section *get_named_section (tree, const char *, int); |
550 | extern section *get_variable_section (tree, bool); |
551 | extern void place_block_symbol (rtx); |
552 | extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, |
553 | enum tls_model); |
554 | extern section *mergeable_constant_section (machine_mode, |
555 | unsigned HOST_WIDE_INT, |
556 | unsigned int); |
557 | extern section *function_section (tree); |
558 | extern section *unlikely_text_section (void); |
559 | extern section *current_function_section (void); |
560 | extern void switch_to_other_text_partition (void); |
561 | |
562 | /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if |
563 | not) section for PRIORITY. */ |
564 | extern section *get_cdtor_priority_section (int, bool); |
565 | |
566 | extern bool unlikely_text_section_p (section *); |
567 | extern void switch_to_section (section *, tree = nullptr); |
568 | extern void output_section_asm_op (const char *); |
569 | |
570 | extern void record_tm_clone_pair (tree, tree); |
571 | extern void finish_tm_clone_pairs (void); |
572 | extern tree get_tm_clone_pair (tree); |
573 | |
574 | extern void default_asm_output_source_filename (FILE *, const char *); |
575 | extern void output_file_directive (FILE *, const char *); |
576 | |
577 | extern unsigned int default_section_type_flags (tree, const char *, int); |
578 | |
579 | extern bool have_global_bss_p (void); |
580 | extern bool bss_initializer_p (const_tree, bool = false); |
581 | |
582 | extern void default_no_named_section (const char *, unsigned int, tree); |
583 | extern void default_elf_asm_named_section (const char *, unsigned int, tree); |
584 | extern enum section_category categorize_decl_for_section (const_tree, int); |
585 | extern void default_coff_asm_named_section (const char *, unsigned int, tree); |
586 | extern void default_pe_asm_named_section (const char *, unsigned int, tree); |
587 | |
588 | extern void default_named_section_asm_out_destructor (rtx, int); |
589 | extern void default_dtor_section_asm_out_destructor (rtx, int); |
590 | extern void default_named_section_asm_out_constructor (rtx, int); |
591 | extern void default_ctor_section_asm_out_constructor (rtx, int); |
592 | |
593 | extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT); |
594 | extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); |
595 | extern void default_unique_section (tree, int); |
596 | extern section *default_function_rodata_section (tree, bool); |
597 | extern section *default_no_function_rodata_section (tree, bool); |
598 | extern section *default_clone_table_section (void); |
599 | extern section *default_select_rtx_section (machine_mode, rtx, |
600 | unsigned HOST_WIDE_INT); |
601 | extern section *default_elf_select_rtx_section (machine_mode, rtx, |
602 | unsigned HOST_WIDE_INT); |
603 | extern void default_encode_section_info (tree, rtx, int); |
604 | extern const char *default_strip_name_encoding (const char *); |
605 | extern void default_asm_output_anchor (rtx); |
606 | extern bool default_use_anchors_for_symbol_p (const_rtx); |
607 | extern bool default_binds_local_p (const_tree); |
608 | extern bool default_binds_local_p_1 (const_tree, int); |
609 | extern bool default_binds_local_p_2 (const_tree); |
610 | extern bool default_binds_local_p_3 (const_tree, bool, bool, bool, bool); |
611 | extern void default_globalize_label (FILE *, const char *); |
612 | extern void default_globalize_decl_name (FILE *, tree); |
613 | extern void default_emit_unwind_label (FILE *, tree, int, int); |
614 | extern void default_emit_except_table_label (FILE *); |
615 | extern void default_generate_internal_label (char *, const char *, |
616 | unsigned long); |
617 | extern void default_internal_label (FILE *, const char *, unsigned long); |
618 | extern void default_asm_declare_constant_name (FILE *, const char *, |
619 | const_tree, HOST_WIDE_INT); |
620 | extern void default_file_start (void); |
621 | extern void file_end_indicate_exec_stack (void); |
622 | extern void file_end_indicate_split_stack (void); |
623 | |
624 | extern void default_elf_asm_output_external (FILE *file, tree, |
625 | const char *); |
626 | extern void default_elf_asm_output_limited_string (FILE *, const char *); |
627 | extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int); |
628 | extern void default_elf_internal_label (FILE *, const char *, unsigned long); |
629 | |
630 | extern void default_elf_init_array_asm_out_constructor (rtx, int); |
631 | extern void default_elf_fini_array_asm_out_destructor (rtx, int); |
632 | extern bool maybe_assemble_visibility (tree); |
633 | |
634 | extern int default_address_cost (rtx, machine_mode, addr_space_t, bool); |
635 | |
636 | /* Stack usage. */ |
637 | extern void output_stack_usage (void); |
638 | |
639 | #endif /* ! GCC_OUTPUT_H */ |
640 | |