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0c2768fc RS |
1 | /* Declarations for insn-output.c. These functions are defined in recog.c, |
2 | final.c, and varasm.c. | |
af841dbd | 3 | Copyright (C) 1987, 1991, 1994, 1997, 1998, |
ad616de1 | 4 | 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
0c2768fc | 5 | |
1322177d | 6 | This file is part of GCC. |
0c2768fc | 7 | |
1322177d LB |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
10 | Software Foundation; either version 2, or (at your option) any later | |
11 | version. | |
0c2768fc | 12 | |
1322177d LB |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
0c2768fc RS |
17 | |
18 | You should have received a copy of the GNU General Public License | |
1322177d LB |
19 | along with GCC; see the file COPYING. If not, write to the Free |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
0c2768fc | 22 | |
e91e4f6c KG |
23 | #ifndef GCC_OUTPUT_H |
24 | #define GCC_OUTPUT_H | |
25 | ||
247a370b | 26 | /* Compute branch alignments based on frequency information in the CFG. */ |
0c20a65f | 27 | extern void compute_alignments (void); |
247a370b | 28 | |
9b1d8cd6 | 29 | /* Initialize data in final at the beginning of a compilation. */ |
0c20a65f | 30 | extern void init_final (const char *); |
9b1d8cd6 | 31 | |
9b1d8cd6 RK |
32 | /* Enable APP processing of subsequent output. |
33 | Used before the output from an `asm' statement. */ | |
0c20a65f | 34 | extern void app_enable (void); |
9b1d8cd6 RK |
35 | |
36 | /* Disable APP processing of subsequent output. | |
37 | Called from varasm.c before most kinds of output. */ | |
0c20a65f | 38 | extern void app_disable (void); |
9b1d8cd6 | 39 | |
a4f31c00 | 40 | /* Return the number of slots filled in the current |
9b1d8cd6 RK |
41 | delayed branch sequence (we don't count the insn needing the |
42 | delay slot). Zero if not in a delayed branch sequence. */ | |
0c20a65f | 43 | extern int dbr_sequence_length (void); |
9b1d8cd6 RK |
44 | |
45 | /* Indicate that branch shortening hasn't yet been done. */ | |
0c20a65f | 46 | extern void init_insn_lengths (void); |
9b1d8cd6 RK |
47 | |
48 | /* Obtain the current length of an insn. If branch shortening has been done, | |
49 | get its actual length. Otherwise, get its maximum length. */ | |
0c20a65f | 50 | extern int get_attr_length (rtx); |
9b1d8cd6 RK |
51 | |
52 | /* Make a pass over all insns and compute their actual lengths by shortening | |
53 | any branches of variable length if possible. */ | |
0c20a65f | 54 | extern void shorten_branches (rtx); |
9b1d8cd6 RK |
55 | |
56 | /* Output assembler code for the start of a function, | |
57 | and initialize some of the variables in this file | |
58 | for the new function. The label for the function and associated | |
59 | assembler pseudo-ops have already been output in | |
60 | `assemble_start_function'. */ | |
0c20a65f | 61 | extern void final_start_function (rtx, FILE *, int); |
9b1d8cd6 RK |
62 | |
63 | /* Output assembler code for the end of a function. | |
64 | For clarity, args are same as those of `final_start_function' | |
65 | even though not all of them are needed. */ | |
0c20a65f | 66 | extern void final_end_function (void); |
9b1d8cd6 RK |
67 | |
68 | /* Output assembler code for some insns: all or part of a function. */ | |
c9d691e9 | 69 | extern void final (rtx, FILE *, int); |
9b1d8cd6 | 70 | |
5cfc5f84 DJ |
71 | /* The final scan for one insn, INSN. Args are same as in `final', except |
72 | that INSN is the insn being scanned. Value returned is the next insn to | |
73 | be scanned. */ | |
c9d691e9 | 74 | extern rtx final_scan_insn (rtx, FILE *, int, int, int *); |
5cfc5f84 | 75 | |
9b1d8cd6 RK |
76 | /* Replace a SUBREG with a REG or a MEM, based on the thing it is a |
77 | subreg of. */ | |
0c20a65f | 78 | extern rtx alter_subreg (rtx *); |
9b1d8cd6 RK |
79 | |
80 | /* Report inconsistency between the assembler template and the operands. | |
81 | In an `asm', it's the user's fault; otherwise, the compiler's fault. */ | |
0c20a65f | 82 | extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1; |
cf1c49cb | 83 | |
0c2768fc RS |
84 | /* Output a string of assembler code, substituting insn operands. |
85 | Defined in final.c. */ | |
0c20a65f | 86 | extern void output_asm_insn (const char *, rtx *); |
0c2768fc | 87 | |
487a6e06 KG |
88 | /* Compute a worst-case reference address of a branch so that it |
89 | can be safely used in the presence of aligned labels. | |
90 | Defined in final.c. */ | |
0c20a65f | 91 | extern int insn_current_reference_address (rtx); |
487a6e06 | 92 | |
3873d24b RH |
93 | /* Find the alignment associated with a CODE_LABEL. |
94 | Defined in final.c. */ | |
0c20a65f | 95 | extern int label_to_alignment (rtx); |
3873d24b | 96 | |
9b1d8cd6 | 97 | /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */ |
0c20a65f | 98 | extern void output_asm_label (rtx); |
9b1d8cd6 RK |
99 | |
100 | /* Print a memory reference operand for address X | |
101 | using machine-dependent assembler syntax. */ | |
0c20a65f | 102 | extern void output_address (rtx); |
1428a6b3 | 103 | |
aaff8ce0 CH |
104 | /* Print an integer constant expression in assembler syntax. |
105 | Addition and subtraction are the only arithmetic | |
106 | that may appear in these expressions. */ | |
0c20a65f | 107 | extern void output_addr_const (FILE *, rtx); |
aaff8ce0 | 108 | |
9b1d8cd6 RK |
109 | /* Output a string of assembler code, substituting numbers, strings |
110 | and fixed syntactic prefixes. */ | |
3ae1d4c2 KG |
111 | #if GCC_VERSION >= 3004 |
112 | #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m) | |
113 | /* This is a magic identifier which allows GCC to figure out the type | |
114 | of HOST_WIDE_INT for %wd specifier checks. You must issue this | |
115 | typedef before using the __asm_fprintf__ format attribute. */ | |
116 | typedef HOST_WIDE_INT __gcc_host_wide_int__; | |
117 | #else | |
118 | #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m) | |
119 | #endif | |
120 | ||
0c20a65f AJ |
121 | extern void asm_fprintf (FILE *file, const char *p, ...) |
122 | ATTRIBUTE_ASM_FPRINTF(2, 3); | |
9b1d8cd6 RK |
123 | |
124 | /* Split up a CONST_DOUBLE or integer constant rtx into two rtx's for single | |
125 | words. */ | |
0c20a65f | 126 | extern void split_double (rtx, rtx *, rtx *); |
9b1d8cd6 RK |
127 | |
128 | /* Return nonzero if this function has no function calls. */ | |
0c20a65f | 129 | extern int leaf_function_p (void); |
9b1d8cd6 | 130 | |
09da1532 | 131 | /* Return 1 if branch is a forward branch. |
a4f31c00 AJ |
132 | Uses insn_shuid array, so it works only in the final pass. May be used by |
133 | output templates to add branch prediction hints, for example. */ | |
0c20a65f | 134 | extern int final_forward_branch_p (rtx); |
a4f31c00 | 135 | |
9b1d8cd6 RK |
136 | /* Return 1 if this function uses only the registers that can be |
137 | safely renumbered. */ | |
0c20a65f | 138 | extern int only_leaf_regs_used (void); |
9b1d8cd6 RK |
139 | |
140 | /* Scan IN_RTX and its subexpressions, and renumber all regs into those | |
141 | available in leaf functions. */ | |
0c20a65f | 142 | extern void leaf_renumber_regs_insn (rtx); |
a1493f9f | 143 | |
4bbf910e | 144 | /* Locate the proper template for the given insn-code. */ |
0c20a65f | 145 | extern const char *get_insn_template (int, rtx); |
4bbf910e | 146 | |
a1493f9f | 147 | /* Functions in flow.c */ |
0c20a65f | 148 | extern int regno_clobbered_at_setjmp (int); |
ed068cf5 RK |
149 | |
150 | /* Functions in varasm.c. */ | |
151 | ||
152 | /* Tell assembler to switch to text section. */ | |
0c20a65f | 153 | extern void text_section (void); |
ed068cf5 | 154 | |
750054a2 CT |
155 | /* Tell assembler to switch to unlikely-to-be-executed text section. */ |
156 | extern void unlikely_text_section (void); | |
157 | ||
ed068cf5 | 158 | /* Tell assembler to switch to data section. */ |
0c20a65f | 159 | extern void data_section (void); |
ed068cf5 RK |
160 | |
161 | /* Tell assembler to switch to read-only data section. This is normally | |
162 | the text section. */ | |
0c20a65f | 163 | extern void readonly_data_section (void); |
ed068cf5 | 164 | |
2ba84f36 | 165 | /* Determine if we're in the text section. */ |
0c20a65f | 166 | extern int in_text_section (void); |
ed068cf5 | 167 | |
750054a2 CT |
168 | /* Determine if we're in the unlikely-to-be-executed text section. */ |
169 | extern int in_unlikely_text_section (void); | |
170 | ||
7751947b | 171 | #ifdef CTORS_SECTION_ASM_OP |
0c20a65f | 172 | extern void ctors_section (void); |
7751947b KG |
173 | #endif |
174 | ||
175 | #ifdef DTORS_SECTION_ASM_OP | |
0c20a65f | 176 | extern void dtors_section (void); |
7751947b KG |
177 | #endif |
178 | ||
179 | #ifdef BSS_SECTION_ASM_OP | |
0c20a65f | 180 | extern void bss_section (void); |
7751947b KG |
181 | #endif |
182 | ||
4dc94be7 | 183 | #ifdef INIT_SECTION_ASM_OP |
0c20a65f | 184 | extern void init_section (void); |
4dc94be7 KG |
185 | #endif |
186 | ||
187 | #ifdef FINI_SECTION_ASM_OP | |
0c20a65f | 188 | extern void fini_section (void); |
4dc94be7 | 189 | #endif |
7751947b | 190 | |
c3fb23f4 | 191 | #ifdef EXPORTS_SECTION_ASM_OP |
0c20a65f | 192 | extern void exports_section (void); |
c3fb23f4 KG |
193 | #endif |
194 | ||
adf97f58 | 195 | #ifdef DRECTVE_SECTION_ASM_OP |
0c20a65f | 196 | extern void drectve_section (void); |
adf97f58 KG |
197 | #endif |
198 | ||
40cdfca6 | 199 | #ifdef SDATA_SECTION_ASM_OP |
0c20a65f | 200 | extern void sdata_section (void); |
40cdfca6 KG |
201 | #endif |
202 | ||
ed068cf5 RK |
203 | /* Tell assembler to change to section NAME for DECL. |
204 | If DECL is NULL, just switch to section NAME. | |
ad4ff310 JM |
205 | If NAME is NULL, get the name from DECL. |
206 | If RELOC is 1, the initializer for DECL contains relocs. */ | |
0c20a65f | 207 | extern void named_section (tree, const char *, int); |
ed068cf5 | 208 | |
4d1065ed | 209 | /* Tell assembler to switch to the section for function DECL. */ |
0c20a65f | 210 | extern void function_section (tree); |
4d1065ed | 211 | |
87c8b4be CT |
212 | /* Tell assembler to switch to the most recently used text section. */ |
213 | extern void current_function_section (tree); | |
214 | ||
201556f0 | 215 | /* Tell assembler to switch to the section for string merging. */ |
0c20a65f AJ |
216 | extern void mergeable_string_section (tree, unsigned HOST_WIDE_INT, |
217 | unsigned int); | |
201556f0 JJ |
218 | |
219 | /* Tell assembler to switch to the section for constant merging. */ | |
0c20a65f AJ |
220 | extern void mergeable_constant_section (enum machine_mode, |
221 | unsigned HOST_WIDE_INT, unsigned int); | |
201556f0 | 222 | |
d6f4ec51 | 223 | /* Declare DECL to be a weak symbol. */ |
0c20a65f | 224 | extern void declare_weak (tree); |
45806a3f | 225 | /* Merge weak status. */ |
0c20a65f | 226 | extern void merge_weak (tree, tree); |
d6f4ec51 | 227 | |
50b2596f | 228 | /* Emit any pending weak declarations. */ |
0c20a65f | 229 | extern void weak_finish (void); |
50b2596f | 230 | |
ed068cf5 RK |
231 | /* Decode an `asm' spec for a declaration as a register name. |
232 | Return the register number, or -1 if nothing specified, | |
233 | or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized, | |
234 | or -3 if ASMSPEC is `cc' and is not recognized, | |
235 | or -4 if ASMSPEC is `memory' and is not recognized. | |
236 | Accept an exact spelling or a decimal number. | |
237 | Prefixes such as % are optional. */ | |
0c20a65f | 238 | extern int decode_reg_name (const char *); |
ed068cf5 | 239 | |
ed068cf5 RK |
240 | /* Make the rtl for variable VAR be volatile. |
241 | Use this only for static variables. */ | |
0c20a65f | 242 | extern void make_var_volatile (tree); |
ed068cf5 | 243 | |
0c20a65f | 244 | extern void assemble_alias (tree, tree); |
d6f4ec51 | 245 | |
0c20a65f | 246 | extern void default_assemble_visibility (tree, int); |
47bd70b5 | 247 | |
ed068cf5 RK |
248 | /* Output a string of literal assembler code |
249 | for an `asm' keyword used between functions. */ | |
0c20a65f | 250 | extern void assemble_asm (tree); |
ed068cf5 | 251 | |
ed068cf5 RK |
252 | /* Output assembler code for the constant pool of a function and associated |
253 | with defining the name of the function. DECL describes the function. | |
254 | NAME is the function's name. For the constant pool, we use the current | |
255 | constant pool data. */ | |
0c20a65f | 256 | extern void assemble_start_function (tree, const char *); |
ed068cf5 RK |
257 | |
258 | /* Output assembler code associated with defining the size of the | |
259 | function. DECL describes the function. NAME is the function's name. */ | |
0c20a65f | 260 | extern void assemble_end_function (tree, const char *); |
ed068cf5 | 261 | |
ed068cf5 RK |
262 | /* Assemble everything that is needed for a variable or function declaration. |
263 | Not used for automatic variables, and not used for function definitions. | |
264 | Should not be called for variables of incomplete structure type. | |
265 | ||
266 | TOP_LEVEL is nonzero if this variable has file scope. | |
267 | AT_END is nonzero if this is the special handling, at end of compilation, | |
268 | to define things that have had only tentative definitions. | |
269 | DONT_OUTPUT_DATA if nonzero means don't actually output the | |
270 | initial value (that will be done by the caller). */ | |
0c20a65f | 271 | extern void assemble_variable (tree, int, int, int); |
ed068cf5 | 272 | |
ed068cf5 RK |
273 | /* Output something to declare an external symbol to the assembler. |
274 | (Most assemblers don't need this, so we normally output nothing.) | |
275 | Do nothing if DECL is not external. */ | |
0c20a65f | 276 | extern void assemble_external (tree); |
ed068cf5 | 277 | |
d8d79d15 | 278 | /* Assemble code to leave SIZE bytes of zeros. */ |
0c20a65f | 279 | extern void assemble_zeros (unsigned HOST_WIDE_INT); |
d8d79d15 RE |
280 | |
281 | /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */ | |
0c20a65f | 282 | extern void assemble_align (int); |
d8d79d15 RE |
283 | |
284 | /* Assemble a string constant with the specified C string as contents. */ | |
0c20a65f | 285 | extern void assemble_string (const char *, int); |
d8d79d15 | 286 | |
ed068cf5 | 287 | /* Similar, for calling a library function FUN. */ |
0c20a65f | 288 | extern void assemble_external_libcall (rtx); |
9b1d8cd6 | 289 | |
ed068cf5 | 290 | /* Assemble a label named NAME. */ |
0c20a65f | 291 | extern void assemble_label (const char *); |
ed068cf5 | 292 | |
57829bc4 MM |
293 | /* Output to FILE (an assembly file) a reference to NAME. If NAME |
294 | starts with a *, the rest of NAME is output verbatim. Otherwise | |
295 | NAME is transformed in a target-specific way (usually by the | |
296 | addition of an underscore). */ | |
297 | extern void assemble_name_raw (FILE *, const char *); | |
298 | ||
299 | /* Like assemble_name_raw, but should be used when NAME might refer to | |
300 | an entity that is also represented as a tree (like a function or | |
301 | variable). If NAME does refer to such an entity, that entity will | |
302 | be marked as referenced. */ | |
0c20a65f | 303 | extern void assemble_name (FILE *, const char *); |
ed068cf5 | 304 | |
301d03af RS |
305 | /* Return the assembler directive for creating a given kind of integer |
306 | object. SIZE is the number of bytes in the object and ALIGNED_P | |
307 | indicates whether it is known to be aligned. Return NULL if the | |
308 | assembly dialect has no such directive. | |
309 | ||
310 | The returned string should be printed at the start of a new line and | |
311 | be followed immediately by the object's initial value. */ | |
0c20a65f | 312 | extern const char *integer_asm_op (int, int); |
301d03af | 313 | |
301d03af RS |
314 | /* Use directive OP to assemble an integer object X. Print OP at the |
315 | start of the line, followed immediately by the value of X. */ | |
0c20a65f | 316 | extern void assemble_integer_with_op (const char *, rtx); |
301d03af RS |
317 | |
318 | /* The default implementation of the asm_out.integer target hook. */ | |
0c20a65f | 319 | extern bool default_assemble_integer (rtx, unsigned int, int); |
301d03af | 320 | |
c8af3574 RH |
321 | /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is |
322 | the alignment of the integer in bits. Return 1 if we were able to output | |
40f03658 | 323 | the constant, otherwise 0. If FORCE is nonzero, abort if we can't output |
c8af3574 | 324 | the constant. */ |
0c20a65f | 325 | extern bool assemble_integer (rtx, unsigned, unsigned, int); |
301d03af RS |
326 | |
327 | /* An interface to assemble_integer for the common case in which a value is | |
328 | fully aligned and must be printed. VALUE is the value of the integer | |
329 | object and SIZE is the number of bytes it contains. */ | |
330 | #define assemble_aligned_integer(SIZE, VALUE) \ | |
331 | assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) | |
ed068cf5 | 332 | |
e2500fed | 333 | #ifdef REAL_VALUE_TYPE_SIZE |
ed068cf5 | 334 | /* Assemble the floating-point constant D into an object of size MODE. */ |
0c20a65f | 335 | extern void assemble_real (REAL_VALUE_TYPE, enum machine_mode, unsigned); |
ed068cf5 | 336 | #endif |
ed068cf5 | 337 | |
ed068cf5 | 338 | /* Return the size of the constant pool. */ |
0c20a65f | 339 | extern int get_pool_size (void); |
ed068cf5 | 340 | |
36f0e0a6 | 341 | #ifdef HAVE_peephole |
0c20a65f | 342 | extern rtx peephole (rtx); |
36f0e0a6 KG |
343 | #endif |
344 | ||
ed068cf5 | 345 | /* Write all the constants in the constant pool. */ |
0c20a65f | 346 | extern void output_constant_pool (const char *, tree); |
ed068cf5 | 347 | |
14a774a9 RK |
348 | /* Return nonzero if VALUE is a valid constant-valued expression |
349 | for use in initializing a static variable; one that can be an | |
350 | element of a "constant" initializer. | |
351 | ||
352 | Return null_pointer_node if the value is absolute; | |
353 | if it is relocatable, return the variable that determines the relocation. | |
354 | We assume that VALUE has been folded as much as possible; | |
355 | therefore, we do not need to check for such things as | |
356 | arithmetic-combinations of integers. */ | |
0c20a65f | 357 | extern tree initializer_constant_valid_p (tree, tree); |
14a774a9 | 358 | |
ed068cf5 RK |
359 | /* Output assembler code for constant EXP to FILE, with no label. |
360 | This includes the pseudo-op such as ".int" or ".byte", and a newline. | |
361 | Assumes output_addressed_constants has been done on EXP already. | |
362 | ||
363 | Generate exactly SIZE bytes of assembler data, padding at the end | |
c8af3574 RH |
364 | with zeros if necessary. SIZE must always be specified. |
365 | ||
366 | ALIGN is the alignment in bits that may be assumed for the data. */ | |
0c20a65f | 367 | extern void output_constant (tree, unsigned HOST_WIDE_INT, unsigned int); |
aaff8ce0 | 368 | |
0c2768fc RS |
369 | /* When outputting delayed branch sequences, this rtx holds the |
370 | sequence being output. It is null when no delayed branch | |
371 | sequence is being output, so it can be used as a test in the | |
372 | insn output code. | |
373 | ||
374 | This variable is defined in final.c. */ | |
375 | extern rtx final_sequence; | |
376 | ||
f4dc8d96 NB |
377 | /* The line number of the beginning of the current function. Various |
378 | md code needs this so that it can output relative linenumbers. */ | |
379 | ||
380 | #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */ | |
381 | extern int sdb_begin_function_line; | |
382 | #endif | |
383 | ||
49ad7cfa | 384 | /* File in which assembler code is being written. */ |
0c2768fc | 385 | |
49ad7cfa BS |
386 | #ifdef BUFSIZ |
387 | extern FILE *asm_out_file; | |
388 | #endif | |
3b304f5b ZW |
389 | |
390 | /* The first global object in the file. */ | |
391 | extern const char *first_global_object_name; | |
392 | ||
393 | /* The first weak object in the file. */ | |
394 | extern const char *weak_global_object_name; | |
395 | ||
54ff41b7 JW |
396 | /* Nonzero if function being compiled doesn't contain any calls |
397 | (ignoring the prologue and epilogue). This is set prior to | |
398 | local register allocation and is valid for the remaining | |
2ba84f36 | 399 | compiler passes. */ |
54ff41b7 JW |
400 | |
401 | extern int current_function_is_leaf; | |
402 | ||
fdb8a883 JW |
403 | /* Nonzero if function being compiled doesn't modify the stack pointer |
404 | (ignoring the prologue and epilogue). This is only valid after | |
2ba84f36 | 405 | life_analysis has run. */ |
fdb8a883 JW |
406 | |
407 | extern int current_function_sp_is_unchanging; | |
408 | ||
54ff41b7 JW |
409 | /* Nonzero if the function being compiled is a leaf function which only |
410 | uses leaf registers. This is valid after reload (specifically after | |
411 | sched2) and is useful only if the port defines LEAF_REGISTERS. */ | |
412 | ||
413 | extern int current_function_uses_only_leaf_regs; | |
414 | ||
a86d864c RH |
415 | /* Default file in which to dump debug output. */ |
416 | ||
417 | #ifdef BUFSIZ | |
c263766c | 418 | extern FILE *dump_file; |
a86d864c RH |
419 | #endif |
420 | ||
afe48e06 | 421 | /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ |
bcda12f4 | 422 | extern rtx current_insn_predicate; |
afe48e06 | 423 | |
b1a9f6a0 | 424 | /* Last insn processed by final_scan_insn. */ |
bcda12f4 | 425 | extern rtx current_output_insn; |
b1a9f6a0 | 426 | |
c8b94768 RH |
427 | /* Nonzero while outputting an `asm' with operands. |
428 | This means that inconsistencies are the user's fault, so don't abort. | |
429 | The precise value is the insn being output, to pass to error_for_asm. */ | |
430 | extern rtx this_is_asm_operands; | |
431 | ||
f6db1481 RH |
432 | /* Carry information from ASM_DECLARE_OBJECT_NAME |
433 | to ASM_FINISH_DECLARE_OBJECT. */ | |
434 | extern int size_directive_output; | |
435 | extern tree last_assemble_variable_decl; | |
436 | ||
87c8b4be CT |
437 | enum in_section { no_section, in_text, in_unlikely_executed_text, in_data, |
438 | in_named | |
439 | #ifdef BSS_SECTION_ASM_OP | |
440 | , in_bss | |
441 | #endif | |
442 | #ifdef CTORS_SECTION_ASM_OP | |
443 | , in_ctors | |
444 | #endif | |
445 | #ifdef DTORS_SECTION_ASM_OP | |
446 | , in_dtors | |
447 | #endif | |
448 | #ifdef READONLY_DATA_SECTION_ASM_OP | |
449 | , in_readonly_data | |
450 | #endif | |
451 | #ifdef EXTRA_SECTIONS | |
452 | , EXTRA_SECTIONS | |
453 | #endif | |
454 | }; | |
455 | ||
c3c822d5 CT |
456 | extern char *unlikely_section_label; |
457 | extern char *hot_section_label; | |
458 | extern char *hot_section_end_label; | |
459 | extern char *cold_section_end_label; | |
460 | extern char *unlikely_text_section_name; | |
87c8b4be CT |
461 | extern const char *last_text_section_name; |
462 | extern enum in_section last_text_section; | |
463 | extern bool first_function_block_is_cold; | |
464 | ||
4e4d733e L |
465 | /* Decide whether DECL needs to be in a writable section. |
466 | RELOC is the same as for SELECT_SECTION. */ | |
0c20a65f AJ |
467 | extern bool decl_readonly_section (tree, int); |
468 | extern bool decl_readonly_section_1 (tree, int, int); | |
19283265 | 469 | |
b2218cc1 AO |
470 | /* This can be used to compute RELOC for the function above, when |
471 | given a constant expression. */ | |
472 | extern int compute_reloc_for_constant (tree); | |
473 | ||
19283265 | 474 | /* User label prefix in effect for this compilation. */ |
87e11268 | 475 | extern const char *user_label_prefix; |
98577d03 | 476 | |
08c148a8 | 477 | /* Default target function prologue and epilogue assembler output. */ |
0c20a65f | 478 | extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT); |
b4c25db2 | 479 | |
f3a8e4f5 | 480 | /* Tell assembler to switch to the section for the exception table. */ |
0c20a65f | 481 | extern void default_exception_section (void); |
f3a8e4f5 KG |
482 | |
483 | /* Tell assembler to switch to the section for the EH frames. */ | |
9d340419 RO |
484 | extern void named_section_eh_frame_section (void); |
485 | extern void collect2_eh_frame_section (void); | |
0c20a65f | 486 | extern void default_eh_frame_section (void); |
f3a8e4f5 | 487 | |
b4c25db2 | 488 | /* Default target hook that outputs nothing to a stream. */ |
0c20a65f | 489 | extern void no_asm_to_stream (FILE *); |
7c262518 | 490 | |
d55d8fc7 | 491 | /* Flags controlling properties of a section. */ |
201556f0 JJ |
492 | #define SECTION_ENTSIZE 0x000ff /* entity size in section */ |
493 | #define SECTION_CODE 0x00100 /* contains code */ | |
494 | #define SECTION_WRITE 0x00200 /* data is writable */ | |
495 | #define SECTION_DEBUG 0x00400 /* contains debug data */ | |
496 | #define SECTION_LINKONCE 0x00800 /* is linkonce */ | |
497 | #define SECTION_SMALL 0x01000 /* contains "small data" */ | |
498 | #define SECTION_BSS 0x02000 /* contains zeros only */ | |
499 | #define SECTION_FORGET 0x04000 /* forget that we've entered the section */ | |
500 | #define SECTION_MERGE 0x08000 /* contains mergeable data */ | |
501 | #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without | |
502 | embedded zeros */ | |
10c45943 | 503 | #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */ |
3d78f2e9 | 504 | #define SECTION_TLS 0x40000 /* contains thread-local storage */ |
6a0a6ac4 AM |
505 | #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ |
506 | #define SECTION_MACH_DEP 0x100000 /* subsequent bits reserved for target */ | |
7c262518 | 507 | |
0c20a65f | 508 | extern bool set_named_section_flags (const char *, unsigned int); |
c18a5b6c MM |
509 | #define named_section_flags(NAME, FLAGS) \ |
510 | named_section_real((NAME), (FLAGS), /*decl=*/NULL_TREE) | |
511 | extern void named_section_real (const char *, unsigned int, tree); | |
0c20a65f | 512 | extern bool named_section_first_declaration (const char *); |
bcda12f4 SB |
513 | extern unsigned int default_section_type_flags (tree, const char *, int); |
514 | extern unsigned int default_section_type_flags_1 (tree, const char *, int, int); | |
0c20a65f | 515 | |
c18a5b6c MM |
516 | extern void default_no_named_section (const char *, unsigned int, tree); |
517 | extern void default_elf_asm_named_section (const char *, unsigned int, tree); | |
518 | extern void default_coff_asm_named_section (const char *, unsigned int, tree); | |
519 | extern void default_pe_asm_named_section (const char *, unsigned int, tree); | |
0c20a65f | 520 | |
bcda12f4 SB |
521 | extern void default_stabs_asm_out_destructor (rtx, int); |
522 | extern void default_named_section_asm_out_destructor (rtx, int); | |
523 | extern void default_dtor_section_asm_out_destructor (rtx, int); | |
524 | extern void default_stabs_asm_out_constructor (rtx, int); | |
525 | extern void default_named_section_asm_out_constructor (rtx, int); | |
526 | extern void default_ctor_section_asm_out_constructor (rtx, int); | |
0c20a65f AJ |
527 | |
528 | extern void default_select_section (tree, int, unsigned HOST_WIDE_INT); | |
529 | extern void default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); | |
530 | extern void default_elf_select_section_1 (tree, int, | |
531 | unsigned HOST_WIDE_INT, int); | |
532 | extern void default_unique_section (tree, int); | |
533 | extern void default_unique_section_1 (tree, int, int); | |
ab5c8549 JJ |
534 | extern void default_function_rodata_section (tree); |
535 | extern void default_no_function_rodata_section (tree); | |
0c20a65f AJ |
536 | extern void default_select_rtx_section (enum machine_mode, rtx, |
537 | unsigned HOST_WIDE_INT); | |
538 | extern void default_elf_select_rtx_section (enum machine_mode, rtx, | |
539 | unsigned HOST_WIDE_INT); | |
540 | extern void default_encode_section_info (tree, rtx, int); | |
541 | extern const char *default_strip_name_encoding (const char *); | |
542 | extern bool default_binds_local_p (tree); | |
543 | extern bool default_binds_local_p_1 (tree, int); | |
544 | extern void default_globalize_label (FILE *, const char *); | |
eeab4d81 | 545 | extern void default_emit_unwind_label (FILE *, tree, int, int); |
0c20a65f AJ |
546 | extern void default_internal_label (FILE *, const char *, unsigned long); |
547 | extern void default_file_start (void); | |
548 | extern void file_end_indicate_exec_stack (void); | |
549 | extern bool default_valid_pointer_mode (enum machine_mode); | |
772c5265 | 550 | |
0c20a65f | 551 | extern int default_address_cost (rtx); |
e91e4f6c | 552 | |
87c8b4be CT |
553 | /* When performing hot/cold basic block partitioning, insert note in |
554 | instruction stream indicating boundary between hot and cold sections. */ | |
555 | extern void insert_section_boundary_note (void); | |
556 | ||
93a27b7b ZW |
557 | /* dbxout helper functions */ |
558 | #if defined DBX_DEBUGGING_INFO || defined XCOFF_DEBUGGING_INFO | |
559 | ||
560 | extern void dbxout_int (int); | |
561 | extern void dbxout_stabd (int, int); | |
562 | extern void dbxout_begin_stabn (int); | |
563 | extern void dbxout_begin_stabn_sline (int); | |
564 | extern void dbxout_begin_empty_stabs (int); | |
565 | extern void dbxout_begin_simple_stabs (const char *, int); | |
566 | extern void dbxout_begin_simple_stabs_desc (const char *, int, int); | |
567 | ||
568 | extern void dbxout_stab_value_zero (void); | |
569 | extern void dbxout_stab_value_label (const char *); | |
570 | extern void dbxout_stab_value_label_diff (const char *, const char *); | |
571 | extern void dbxout_stab_value_internal_label (const char *, int *); | |
572 | extern void dbxout_stab_value_internal_label_diff (const char *, int *, | |
573 | const char *); | |
574 | ||
575 | #endif | |
576 | ||
e91e4f6c | 577 | #endif /* ! GCC_OUTPUT_H */ |