Mercurial > hg > CbC > CbC_gcc
annotate gcc/output.h @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 111 | 1 /* Declarations for insn-output.c and other code to write to asm_out_file. |
| 2 These functions are defined in final.c, and varasm.c. | |
| 145 | 3 Copyright (C) 1987-2020 Free Software Foundation, Inc. |
| 0 | 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.c 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. */ | |
| 111 | 45 extern int get_attr_length (rtx_insn *); |
| 0 | 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. */ | |
| 111 | 49 extern int get_attr_min_length (rtx_insn *); |
| 0 | 50 |
| 51 /* Make a pass over all insns and compute their actual lengths by shortening | |
| 52 any branches of variable length if possible. */ | |
| 111 | 53 extern void shorten_branches (rtx_insn *); |
| 54 | |
| 55 const char *get_some_local_dynamic_name (); | |
| 0 | 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'. */ | |
| 111 | 62 extern void final_start_function (rtx_insn *, FILE *, int); |
| 0 | 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. */ | |
| 111 | 70 extern void final (rtx_insn *, FILE *, int); |
| 0 | 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. */ | |
| 111 | 75 extern rtx_insn *final_scan_insn (rtx_insn *, FILE *, int, int, int *); |
| 0 | 76 |
| 77 /* Replace a SUBREG with a REG or a MEM, based on the thing it is a | |
| 78 subreg of. */ | |
| 111 | 79 extern rtx alter_subreg (rtx *, bool); |
| 0 | 80 |
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81 /* Print an operand using machine-dependent assembler syntax. */ |
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82 extern void output_operand (rtx, int); |
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83 |
| 0 | 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. */ | |
| 111 | 95 extern int insn_current_reference_address (rtx_insn *); |
| 0 | 96 |
| 97 /* Find the alignment associated with a CODE_LABEL. | |
| 98 Defined in final.c. */ | |
| 131 | 99 extern align_flags label_to_alignment (rtx); |
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100 |
| 0 | 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 | |
| 111 | 107 /* Print a memory reference operand for address X with access mode MODE |
| 0 | 108 using machine-dependent assembler syntax. */ |
| 111 | 109 extern void output_address (machine_mode, rtx); |
| 0 | 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 | |
| 111 | 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 | |
| 0 | 128 extern void asm_fprintf (FILE *file, const char *p, ...) |
| 129 ATTRIBUTE_ASM_FPRINTF(2, 3); | |
| 130 | |
| 131 /* Return nonzero if this function has no function calls. */ | |
| 132 extern int leaf_function_p (void); | |
| 133 | |
| 134 /* Return 1 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. */ | |
| 111 | 137 extern int final_forward_branch_p (rtx_insn *); |
| 0 | 138 |
| 139 /* Return 1 if this function uses only the registers that can be | |
| 140 safely renumbered. */ | |
| 141 extern int 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. */ | |
| 131 | 148 extern const char *get_insn_template (int, rtx_insn *); |
| 0 | 149 |
| 150 /* Functions in varasm.c. */ | |
| 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 | |
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164 /* Similar to decode_reg_name, but takes an extra parameter that is a |
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165 pointer to the number of (internal) registers described by the |
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166 external name. */ |
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167 extern int decode_reg_name_and_count (const char *, int *); |
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168 |
| 111 | 169 extern void do_assemble_alias (tree, tree); |
| 145 | 170 extern void do_assemble_symver (tree, tree); |
| 0 | 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 | |
| 111 | 178 /* Get the function's name from a decl, as described by its RTL. */ |
| 179 extern const char *get_fnname_from_decl (tree); | |
| 180 | |
| 0 | 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 | |
| 111 | 202 /* Put the vtable verification constructor initialization function |
| 203 into the preinit array. */ | |
| 204 extern void assemble_vtv_preinit_initializer (tree); | |
| 205 | |
| 206 /* Assemble everything that is needed for a variable declaration that has | |
| 207 no definition in the current translation unit. */ | |
| 208 extern void assemble_undefined_decl (tree); | |
| 209 | |
| 0 | 210 /* Compute the alignment of variable specified by DECL. |
| 211 DONT_OUTPUT_DATA is from assemble_variable. */ | |
| 212 extern void align_variable (tree decl, bool dont_output_data); | |
| 213 | |
| 214 /* Queue for outputting something to declare an external symbol to the | |
| 215 assembler. (Most assemblers don't need this, so we normally output | |
| 216 nothing.) Do nothing if DECL is not external. */ | |
| 217 extern void assemble_external (tree); | |
| 218 | |
| 219 /* Assemble code to leave SIZE bytes of zeros. */ | |
| 220 extern void assemble_zeros (unsigned HOST_WIDE_INT); | |
| 221 | |
| 222 /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */ | |
| 145 | 223 extern void assemble_align (unsigned int); |
| 0 | 224 |
| 225 /* Assemble a string constant with the specified C string as contents. */ | |
| 226 extern void assemble_string (const char *, int); | |
| 227 | |
| 228 /* Similar, for calling a library function FUN. */ | |
| 229 extern void assemble_external_libcall (rtx); | |
| 230 | |
| 231 /* Assemble a label named NAME. */ | |
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232 extern void assemble_label (FILE *, const char *); |
| 0 | 233 |
| 234 /* Output to FILE (an assembly file) a reference to NAME. If NAME | |
| 235 starts with a *, the rest of NAME is output verbatim. Otherwise | |
| 236 NAME is transformed in a target-specific way (usually by the | |
| 237 addition of an underscore). */ | |
| 238 extern void assemble_name_raw (FILE *, const char *); | |
| 239 | |
| 145 | 240 /* Return NAME that should actually be emitted, looking through |
| 241 transparent aliases. If NAME refers to an entity that is also | |
| 242 represented as a tree (like a function or variable), mark the entity | |
| 243 as referenced. */ | |
| 244 extern const char *assemble_name_resolve (const char *); | |
| 245 | |
| 0 | 246 /* Like assemble_name_raw, but should be used when NAME might refer to |
| 247 an entity that is also represented as a tree (like a function or | |
| 248 variable). If NAME does refer to such an entity, that entity will | |
| 249 be marked as referenced. */ | |
| 250 extern void assemble_name (FILE *, const char *); | |
| 251 | |
| 252 /* Return the assembler directive for creating a given kind of integer | |
| 253 object. SIZE is the number of bytes in the object and ALIGNED_P | |
| 254 indicates whether it is known to be aligned. Return NULL if the | |
| 255 assembly dialect has no such directive. | |
| 256 | |
| 257 The returned string should be printed at the start of a new line and | |
| 258 be followed immediately by the object's initial value. */ | |
| 259 extern const char *integer_asm_op (int, int); | |
| 260 | |
| 261 /* Use directive OP to assemble an integer object X. Print OP at the | |
| 262 start of the line, followed immediately by the value of X. */ | |
| 263 extern void assemble_integer_with_op (const char *, rtx); | |
| 264 | |
| 265 /* The default implementation of the asm_out.integer target hook. */ | |
| 266 extern bool default_assemble_integer (rtx, unsigned int, int); | |
| 267 | |
| 268 /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is | |
| 269 the alignment of the integer in bits. Return 1 if we were able to output | |
| 270 the constant, otherwise 0. If FORCE is nonzero the constant must | |
| 271 be outputable. */ | |
| 272 extern bool assemble_integer (rtx, unsigned, unsigned, int); | |
| 273 | |
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274 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL) |
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275 is NULL. */ |
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276 extern section *get_named_text_section (tree, const char *, const char *); |
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277 |
| 0 | 278 /* An interface to assemble_integer for the common case in which a value is |
| 279 fully aligned and must be printed. VALUE is the value of the integer | |
| 280 object and SIZE is the number of bytes it contains. */ | |
| 281 #define assemble_aligned_integer(SIZE, VALUE) \ | |
| 282 assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1) | |
| 283 | |
| 111 | 284 /* Assemble the floating-point constant D into an object of size MODE. ALIGN |
| 285 is the alignment of the constant in bits. If REVERSE is true, D is output | |
| 286 in reverse storage order. */ | |
| 287 extern void assemble_real (REAL_VALUE_TYPE, scalar_float_mode, unsigned, | |
| 288 bool = false); | |
| 0 | 289 |
| 290 /* Write the address of the entity given by SYMBOL to SEC. */ | |
| 291 extern void assemble_addr_to_section (rtx, section *); | |
| 292 | |
| 111 | 293 /* Return TRUE if and only if the constant pool has no entries. Note |
| 294 that even entries we might end up choosing not to emit are counted | |
| 295 here, so there is the potential for missed optimizations. */ | |
| 296 extern bool constant_pool_empty_p (void); | |
| 0 | 297 |
| 111 | 298 extern rtx_insn *peephole (rtx_insn *); |
| 0 | 299 |
| 300 extern void output_shared_constant_pool (void); | |
| 301 | |
| 302 extern void output_object_blocks (void); | |
| 303 | |
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304 extern void output_quoted_string (FILE *, const char *); |
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305 |
| 0 | 306 /* When outputting delayed branch sequences, this rtx holds the |
| 307 sequence being output. It is null when no delayed branch | |
| 308 sequence is being output, so it can be used as a test in the | |
| 309 insn output code. | |
| 310 | |
| 311 This variable is defined in final.c. */ | |
| 111 | 312 extern rtx_sequence *final_sequence; |
| 0 | 313 |
| 314 /* File in which assembler code is being written. */ | |
| 315 | |
| 316 #ifdef BUFSIZ | |
| 317 extern FILE *asm_out_file; | |
| 318 #endif | |
| 319 | |
| 320 /* The first global object in the file. */ | |
| 321 extern const char *first_global_object_name; | |
| 322 | |
| 323 /* The first weak object in the file. */ | |
| 324 extern const char *weak_global_object_name; | |
| 325 | |
| 326 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */ | |
| 327 extern rtx current_insn_predicate; | |
| 328 | |
| 329 /* Last insn processed by final_scan_insn. */ | |
| 111 | 330 extern rtx_insn *current_output_insn; |
| 0 | 331 |
| 332 /* Nonzero while outputting an `asm' with operands. | |
| 333 This means that inconsistencies are the user's fault, so don't die. | |
| 334 The precise value is the insn being output, to pass to error_for_asm. */ | |
| 111 | 335 extern const rtx_insn *this_is_asm_operands; |
| 0 | 336 |
| 337 /* Carry information from ASM_DECLARE_OBJECT_NAME | |
| 338 to ASM_FINISH_DECLARE_OBJECT. */ | |
| 339 extern int size_directive_output; | |
| 340 extern tree last_assemble_variable_decl; | |
| 341 | |
| 342 extern bool first_function_block_is_cold; | |
| 343 | |
| 344 /* Decide whether DECL needs to be in a writable section. | |
| 345 RELOC is the same as for SELECT_SECTION. */ | |
| 346 extern bool decl_readonly_section (const_tree, int); | |
| 347 | |
| 348 /* This can be used to compute RELOC for the function above, when | |
| 349 given a constant expression. */ | |
| 350 extern int compute_reloc_for_constant (tree); | |
| 351 | |
| 352 /* User label prefix in effect for this compilation. */ | |
| 353 extern const char *user_label_prefix; | |
| 354 | |
| 355 /* Default target function prologue and epilogue assembler output. */ | |
| 111 | 356 extern void default_function_pro_epilogue (FILE *); |
| 0 | 357 |
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358 /* Default target function switched text sections. */ |
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359 extern void default_function_switched_text_sections (FILE *, tree, bool); |
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360 |
| 0 | 361 /* Default target hook that outputs nothing to a stream. */ |
| 362 extern void no_asm_to_stream (FILE *); | |
| 363 | |
| 364 /* Flags controlling properties of a section. */ | |
| 365 #define SECTION_ENTSIZE 0x000ff /* entity size in section */ | |
| 366 #define SECTION_CODE 0x00100 /* contains code */ | |
| 367 #define SECTION_WRITE 0x00200 /* data is writable */ | |
| 368 #define SECTION_DEBUG 0x00400 /* contains debug data */ | |
| 369 #define SECTION_LINKONCE 0x00800 /* is linkonce */ | |
| 370 #define SECTION_SMALL 0x01000 /* contains "small data" */ | |
| 371 #define SECTION_BSS 0x02000 /* contains zeros only */ | |
| 372 #define SECTION_FORGET 0x04000 /* forget that we've entered the section */ | |
| 373 #define SECTION_MERGE 0x08000 /* contains mergeable data */ | |
| 374 #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without | |
| 375 embedded zeros */ | |
| 376 #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */ | |
| 377 #define SECTION_TLS 0x40000 /* contains thread-local storage */ | |
| 378 #define SECTION_NOTYPE 0x80000 /* don't output @progbits */ | |
| 379 #define SECTION_DECLARED 0x100000 /* section has been used */ | |
| 380 #define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */ | |
| 381 #define SECTION_COMMON 0x800000 /* contains common data */ | |
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382 #define SECTION_RELRO 0x1000000 /* data is readonly after relocation processing */ |
| 111 | 383 #define SECTION_EXCLUDE 0x2000000 /* discarded by the linker */ |
| 384 #define SECTION_MACH_DEP 0x4000000 /* subsequent bits reserved for target */ | |
| 0 | 385 |
| 386 /* This SECTION_STYLE is used for unnamed sections that we can switch | |
| 387 to using a special assembler directive. */ | |
| 388 #define SECTION_UNNAMED 0x000000 | |
| 389 | |
| 390 /* This SECTION_STYLE is used for named sections that we can switch | |
| 391 to using a general section directive. */ | |
| 392 #define SECTION_NAMED 0x200000 | |
| 393 | |
| 394 /* This SECTION_STYLE is used for sections that we cannot switch to at | |
| 395 all. The choice of section is implied by the directive that we use | |
| 396 to declare the object. */ | |
| 397 #define SECTION_NOSWITCH 0x400000 | |
| 398 | |
| 399 /* A helper function for default_elf_select_section and | |
| 400 default_elf_unique_section. Categorizes the DECL. */ | |
| 401 | |
| 402 enum section_category | |
| 403 { | |
| 404 SECCAT_TEXT, | |
| 405 | |
| 406 SECCAT_RODATA, | |
| 407 SECCAT_RODATA_MERGE_STR, | |
| 408 SECCAT_RODATA_MERGE_STR_INIT, | |
| 409 SECCAT_RODATA_MERGE_CONST, | |
| 410 SECCAT_SRODATA, | |
| 411 | |
| 412 SECCAT_DATA, | |
| 413 | |
| 414 /* To optimize loading of shared programs, define following subsections | |
| 415 of data section: | |
| 416 _REL Contains data that has relocations, so they get grouped | |
| 417 together and dynamic linker will visit fewer pages in memory. | |
| 418 _RO Contains data that is otherwise read-only. This is useful | |
| 419 with prelinking as most relocations won't be dynamically | |
| 420 linked and thus stay read only. | |
| 421 _LOCAL Marks data containing relocations only to local objects. | |
| 422 These relocations will get fully resolved by prelinking. */ | |
| 423 SECCAT_DATA_REL, | |
| 424 SECCAT_DATA_REL_LOCAL, | |
| 425 SECCAT_DATA_REL_RO, | |
| 426 SECCAT_DATA_REL_RO_LOCAL, | |
| 427 | |
| 428 SECCAT_SDATA, | |
| 429 SECCAT_TDATA, | |
| 430 | |
| 431 SECCAT_BSS, | |
| 432 SECCAT_SBSS, | |
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433 SECCAT_TBSS |
| 0 | 434 }; |
| 435 | |
| 436 /* Information that is provided by all instances of the section type. */ | |
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437 struct GTY(()) section_common { |
| 0 | 438 /* The set of SECTION_* flags that apply to this section. */ |
| 439 unsigned int flags; | |
| 440 }; | |
| 441 | |
| 442 /* Information about a SECTION_NAMED section. */ | |
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443 struct GTY(()) named_section { |
| 0 | 444 struct section_common common; |
| 445 | |
| 446 /* The name of the section. */ | |
| 447 const char *name; | |
| 448 | |
| 449 /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the | |
| 450 section is associated. */ | |
| 451 tree decl; | |
| 452 }; | |
| 453 | |
| 454 /* A callback that writes the assembly code for switching to an unnamed | |
| 455 section. The argument provides callback-specific data. */ | |
| 456 typedef void (*unnamed_section_callback) (const void *); | |
| 457 | |
| 458 /* Information about a SECTION_UNNAMED section. */ | |
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459 struct GTY(()) unnamed_section { |
| 0 | 460 struct section_common common; |
| 461 | |
| 462 /* The callback used to switch to the section, and the data that | |
| 463 should be passed to the callback. */ | |
| 464 unnamed_section_callback GTY ((skip)) callback; | |
| 465 const void *GTY ((skip)) data; | |
| 466 | |
| 467 /* The next entry in the chain of unnamed sections. */ | |
| 468 section *next; | |
| 469 }; | |
| 470 | |
| 471 /* A callback that writes the assembly code for a decl in a | |
| 472 SECTION_NOSWITCH section. DECL is the decl that should be assembled | |
| 473 and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl | |
| 474 in bytes and ROUNDED is that size rounded up to the next | |
| 475 BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary. | |
| 476 | |
| 477 Return true if the callback used DECL_ALIGN to set the object's | |
| 478 alignment. A false return value implies that we are relying | |
| 479 on the rounded size to align the decl. */ | |
| 480 typedef bool (*noswitch_section_callback) (tree decl, const char *name, | |
| 481 unsigned HOST_WIDE_INT size, | |
| 482 unsigned HOST_WIDE_INT rounded); | |
| 483 | |
| 484 /* Information about a SECTION_NOSWITCH section. */ | |
|
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485 struct GTY(()) noswitch_section { |
| 0 | 486 struct section_common common; |
| 487 | |
| 488 /* The callback used to assemble decls in this section. */ | |
| 489 noswitch_section_callback GTY ((skip)) callback; | |
| 490 }; | |
| 491 | |
| 492 /* Information about a section, which may be named or unnamed. */ | |
| 111 | 493 union GTY ((desc ("SECTION_STYLE (&(%h))"), for_user)) section { |
| 0 | 494 struct section_common GTY ((skip)) common; |
| 495 struct named_section GTY ((tag ("SECTION_NAMED"))) named; | |
| 496 struct unnamed_section GTY ((tag ("SECTION_UNNAMED"))) unnamed; | |
| 497 struct noswitch_section GTY ((tag ("SECTION_NOSWITCH"))) noswitch; | |
| 498 }; | |
| 499 | |
| 500 /* Return the style of section SECT. */ | |
| 501 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK) | |
| 502 | |
| 503 struct object_block; | |
| 504 | |
| 505 /* Special well-known sections. */ | |
| 506 extern GTY(()) section *text_section; | |
| 507 extern GTY(()) section *data_section; | |
| 508 extern GTY(()) section *readonly_data_section; | |
| 509 extern GTY(()) section *sdata_section; | |
| 510 extern GTY(()) section *ctors_section; | |
| 511 extern GTY(()) section *dtors_section; | |
| 512 extern GTY(()) section *bss_section; | |
| 513 extern GTY(()) section *sbss_section; | |
| 514 extern GTY(()) section *exception_section; | |
| 515 extern GTY(()) section *eh_frame_section; | |
| 516 extern GTY(()) section *tls_comm_section; | |
| 517 extern GTY(()) section *comm_section; | |
| 518 extern GTY(()) section *lcomm_section; | |
| 519 extern GTY(()) section *bss_noswitch_section; | |
| 520 | |
| 521 extern GTY(()) section *in_section; | |
| 522 extern GTY(()) bool in_cold_section_p; | |
| 523 | |
| 524 extern section *get_unnamed_section (unsigned int, void (*) (const void *), | |
| 525 const void *); | |
| 526 extern section *get_section (const char *, unsigned int, tree); | |
| 527 extern section *get_named_section (tree, const char *, int); | |
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528 extern section *get_variable_section (tree, bool); |
| 0 | 529 extern void place_block_symbol (rtx); |
| 530 extern rtx get_section_anchor (struct object_block *, HOST_WIDE_INT, | |
| 531 enum tls_model); | |
| 111 | 532 extern section *mergeable_constant_section (machine_mode, |
| 0 | 533 unsigned HOST_WIDE_INT, |
| 534 unsigned int); | |
| 535 extern section *function_section (tree); | |
| 536 extern section *unlikely_text_section (void); | |
| 537 extern section *current_function_section (void); | |
| 111 | 538 extern void switch_to_other_text_partition (void); |
| 0 | 539 |
| 540 /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if | |
| 541 not) section for PRIORITY. */ | |
| 542 extern section *get_cdtor_priority_section (int, bool); | |
| 543 | |
| 544 extern bool unlikely_text_section_p (section *); | |
| 545 extern void switch_to_section (section *); | |
| 546 extern void output_section_asm_op (const void *); | |
| 547 | |
| 111 | 548 extern void record_tm_clone_pair (tree, tree); |
| 549 extern void finish_tm_clone_pairs (void); | |
| 550 extern tree get_tm_clone_pair (tree); | |
| 551 | |
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552 extern void default_asm_output_source_filename (FILE *, const char *); |
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553 extern void output_file_directive (FILE *, const char *); |
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554 |
| 0 | 555 extern unsigned int default_section_type_flags (tree, const char *, int); |
| 556 | |
| 557 extern bool have_global_bss_p (void); | |
| 131 | 558 extern bool bss_initializer_p (const_tree, bool = false); |
| 111 | 559 |
| 0 | 560 extern void default_no_named_section (const char *, unsigned int, tree); |
| 561 extern void default_elf_asm_named_section (const char *, unsigned int, tree); | |
| 562 extern enum section_category categorize_decl_for_section (const_tree, int); | |
| 563 extern void default_coff_asm_named_section (const char *, unsigned int, tree); | |
| 564 extern void default_pe_asm_named_section (const char *, unsigned int, tree); | |
| 565 | |
| 566 extern void default_named_section_asm_out_destructor (rtx, int); | |
| 567 extern void default_dtor_section_asm_out_destructor (rtx, int); | |
| 568 extern void default_named_section_asm_out_constructor (rtx, int); | |
| 569 extern void default_ctor_section_asm_out_constructor (rtx, int); | |
| 570 | |
| 571 extern section *default_select_section (tree, int, unsigned HOST_WIDE_INT); | |
| 572 extern section *default_elf_select_section (tree, int, unsigned HOST_WIDE_INT); | |
| 573 extern void default_unique_section (tree, int); | |
| 574 extern section *default_function_rodata_section (tree); | |
| 575 extern section *default_no_function_rodata_section (tree); | |
| 111 | 576 extern section *default_clone_table_section (void); |
| 577 extern section *default_select_rtx_section (machine_mode, rtx, | |
| 0 | 578 unsigned HOST_WIDE_INT); |
| 111 | 579 extern section *default_elf_select_rtx_section (machine_mode, rtx, |
| 0 | 580 unsigned HOST_WIDE_INT); |
| 581 extern void default_encode_section_info (tree, rtx, int); | |
| 582 extern const char *default_strip_name_encoding (const char *); | |
| 583 extern void default_asm_output_anchor (rtx); | |
| 584 extern bool default_use_anchors_for_symbol_p (const_rtx); | |
| 585 extern bool default_binds_local_p (const_tree); | |
| 586 extern bool default_binds_local_p_1 (const_tree, int); | |
| 111 | 587 extern bool default_binds_local_p_2 (const_tree); |
| 588 extern bool default_binds_local_p_3 (const_tree, bool, bool, bool, bool); | |
| 0 | 589 extern void default_globalize_label (FILE *, const char *); |
| 590 extern void default_globalize_decl_name (FILE *, tree); | |
| 591 extern void default_emit_unwind_label (FILE *, tree, int, int); | |
| 592 extern void default_emit_except_table_label (FILE *); | |
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593 extern void default_generate_internal_label (char *, const char *, |
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594 unsigned long); |
| 0 | 595 extern void default_internal_label (FILE *, const char *, unsigned long); |
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596 extern void default_asm_declare_constant_name (FILE *, const char *, |
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597 const_tree, HOST_WIDE_INT); |
| 0 | 598 extern void default_file_start (void); |
| 599 extern void file_end_indicate_exec_stack (void); | |
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600 extern void file_end_indicate_split_stack (void); |
| 0 | 601 |
| 602 extern void default_elf_asm_output_external (FILE *file, tree, | |
| 603 const char *); | |
| 111 | 604 extern void default_elf_asm_output_limited_string (FILE *, const char *); |
| 605 extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int); | |
| 606 extern void default_elf_internal_label (FILE *, const char *, unsigned long); | |
| 607 | |
| 608 extern void default_elf_init_array_asm_out_constructor (rtx, int); | |
| 609 extern void default_elf_fini_array_asm_out_destructor (rtx, int); | |
| 0 | 610 extern int maybe_assemble_visibility (tree); |
| 611 | |
| 111 | 612 extern int default_address_cost (rtx, machine_mode, addr_space_t, bool); |
| 0 | 613 |
| 145 | 614 /* Stack usage. */ |
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615 extern void output_stack_usage (void); |
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616 |
| 0 | 617 #endif /* ! GCC_OUTPUT_H */ |