1 /* Defs for interface to demanglers. 2 Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 3 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Library General Public License 7 as published by the Free Software Foundation; either version 2, or 8 (at your option) any later version. 9 10 In addition to the permissions in the GNU Library General Public 11 License, the Free Software Foundation gives you unlimited 12 permission to link the compiled version of this file into 13 combinations with other programs, and to distribute those 14 combinations without any restriction coming from the use of this 15 file. (The Library Public License restrictions do apply in other 16 respects; for example, they cover modification of the file, and 17 distribution when not linked into a combined executable.) 18 19 This program is distributed in the hope that it will be useful, but 20 WITHOUT ANY WARRANTY; without even the implied warranty of 21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 22 Library General Public License for more details. 23 24 You should have received a copy of the GNU Library General Public 25 License along with this program; if not, write to the Free Software 26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 27 02110-1301, USA. */ 28 29 30 #if !defined (DEMANGLE_H) 31 #define DEMANGLE_H 32 33 #include "libiberty.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif /* __cplusplus */ 38 39 /* Options passed to cplus_demangle (in 2nd parameter). */ 40 41 #define DMGL_NO_OPTS 0 /* For readability... */ 42 #define DMGL_PARAMS (1 << 0) /* Include function args */ 43 #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ 44 #define DMGL_JAVA (1 << 2) /* Demangle as Java rather than C++. */ 45 #define DMGL_VERBOSE (1 << 3) /* Include implementation details. */ 46 #define DMGL_TYPES (1 << 4) /* Also try to demangle type encodings. */ 47 #define DMGL_RET_POSTFIX (1 << 5) /* Print function return types (when 48 present) after function signature. 49 It applies only to the toplevel 50 function type. */ 51 #define DMGL_RET_DROP (1 << 6) /* Suppress printing function return 52 types, even if present. It applies 53 only to the toplevel function type. 54 */ 55 56 #define DMGL_AUTO (1 << 8) 57 #define DMGL_GNU (1 << 9) 58 #define DMGL_LUCID (1 << 10) 59 #define DMGL_ARM (1 << 11) 60 #define DMGL_HP (1 << 12) /* For the HP aCC compiler; 61 same as ARM except for 62 template arguments, etc. */ 63 #define DMGL_EDG (1 << 13) 64 #define DMGL_GNU_V3 (1 << 14) 65 #define DMGL_GNAT (1 << 15) 66 67 /* If none of these are set, use 'current_demangling_style' as the default. */ 68 #define DMGL_STYLE_MASK (DMGL_AUTO|DMGL_GNU|DMGL_LUCID|DMGL_ARM|DMGL_HP|DMGL_EDG|DMGL_GNU_V3|DMGL_JAVA|DMGL_GNAT) 69 70 /* Enumeration of possible demangling styles. 71 72 Lucid and ARM styles are still kept logically distinct, even though 73 they now both behave identically. The resulting style is actual the 74 union of both. I.E. either style recognizes both "__pt__" and "__rf__" 75 for operator "->", even though the first is lucid style and the second 76 is ARM style. (FIXME?) */ 77 78 extern enum demangling_styles 79 { 80 no_demangling = -1, 81 unknown_demangling = 0, 82 auto_demangling = DMGL_AUTO, 83 gnu_demangling = DMGL_GNU, 84 lucid_demangling = DMGL_LUCID, 85 arm_demangling = DMGL_ARM, 86 hp_demangling = DMGL_HP, 87 edg_demangling = DMGL_EDG, 88 gnu_v3_demangling = DMGL_GNU_V3, 89 java_demangling = DMGL_JAVA, 90 gnat_demangling = DMGL_GNAT 91 } current_demangling_style; 92 93 /* Define string names for the various demangling styles. */ 94 95 #define NO_DEMANGLING_STYLE_STRING "none" 96 #define AUTO_DEMANGLING_STYLE_STRING "auto" 97 #define GNU_DEMANGLING_STYLE_STRING "gnu" 98 #define LUCID_DEMANGLING_STYLE_STRING "lucid" 99 #define ARM_DEMANGLING_STYLE_STRING "arm" 100 #define HP_DEMANGLING_STYLE_STRING "hp" 101 #define EDG_DEMANGLING_STYLE_STRING "edg" 102 #define GNU_V3_DEMANGLING_STYLE_STRING "gnu-v3" 103 #define JAVA_DEMANGLING_STYLE_STRING "java" 104 #define GNAT_DEMANGLING_STYLE_STRING "gnat" 105 106 /* Some macros to test what demangling style is active. */ 107 108 #define CURRENT_DEMANGLING_STYLE current_demangling_style 109 #define AUTO_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_AUTO) 110 #define GNU_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU) 111 #define LUCID_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_LUCID) 112 #define ARM_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_ARM) 113 #define HP_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_HP) 114 #define EDG_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_EDG) 115 #define GNU_V3_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNU_V3) 116 #define JAVA_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_JAVA) 117 #define GNAT_DEMANGLING (((int) CURRENT_DEMANGLING_STYLE) & DMGL_GNAT) 118 119 /* Provide information about the available demangle styles. This code is 120 pulled from gdb into libiberty because it is useful to binutils also. */ 121 122 extern const struct demangler_engine 123 { 124 const char *const demangling_style_name; 125 const enum demangling_styles demangling_style; 126 const char *const demangling_style_doc; 127 } libiberty_demanglers[]; 128 129 extern char * 130 cplus_demangle (const char *mangled, int options); 131 132 extern int 133 cplus_demangle_opname (const char *opname, char *result, int options); 134 135 extern const char * 136 cplus_mangle_opname (const char *opname, int options); 137 138 /* Note: This sets global state. FIXME if you care about multi-threading. */ 139 140 extern void 141 set_cplus_marker_for_demangling (int ch); 142 143 extern enum demangling_styles 144 cplus_demangle_set_style (enum demangling_styles style); 145 146 extern enum demangling_styles 147 cplus_demangle_name_to_style (const char *name); 148 149 /* Callback typedef for allocation-less demangler interfaces. */ 150 typedef void (*demangle_callbackref) (const char *, size_t, void *); 151 152 /* V3 ABI demangling entry points, defined in cp-demangle.c. Callback 153 variants return non-zero on success, zero on error. char* variants 154 return a string allocated by malloc on success, NULL on error. */ 155 extern int 156 cplus_demangle_v3_callback (const char *mangled, int options, 157 demangle_callbackref callback, void *opaque); 158 159 extern char* 160 cplus_demangle_v3 (const char *mangled, int options); 161 162 extern int 163 java_demangle_v3_callback (const char *mangled, 164 demangle_callbackref callback, void *opaque); 165 166 extern char* 167 java_demangle_v3 (const char *mangled); 168 169 char * 170 ada_demangle (const char *mangled, int options); 171 172 enum gnu_v3_ctor_kinds { 173 gnu_v3_complete_object_ctor = 1, 174 gnu_v3_base_object_ctor, 175 gnu_v3_complete_object_allocating_ctor, 176 gnu_v3_object_ctor_group 177 }; 178 179 /* Return non-zero iff NAME is the mangled form of a constructor name 180 in the G++ V3 ABI demangling style. Specifically, return an `enum 181 gnu_v3_ctor_kinds' value indicating what kind of constructor 182 it is. */ 183 extern enum gnu_v3_ctor_kinds 184 is_gnu_v3_mangled_ctor (const char *name); 185 186 187 enum gnu_v3_dtor_kinds { 188 gnu_v3_deleting_dtor = 1, 189 gnu_v3_complete_object_dtor, 190 gnu_v3_base_object_dtor, 191 gnu_v3_object_dtor_group 192 }; 193 194 /* Return non-zero iff NAME is the mangled form of a destructor name 195 in the G++ V3 ABI demangling style. Specifically, return an `enum 196 gnu_v3_dtor_kinds' value, indicating what kind of destructor 197 it is. */ 198 extern enum gnu_v3_dtor_kinds 199 is_gnu_v3_mangled_dtor (const char *name); 200 201 /* The V3 demangler works in two passes. The first pass builds a tree 202 representation of the mangled name, and the second pass turns the 203 tree representation into a demangled string. Here we define an 204 interface to permit a caller to build their own tree 205 representation, which they can pass to the demangler to get a 206 demangled string. This can be used to canonicalize user input into 207 something which the demangler might output. It could also be used 208 by other demanglers in the future. */ 209 210 /* These are the component types which may be found in the tree. Many 211 component types have one or two subtrees, referred to as left and 212 right (a component type with only one subtree puts it in the left 213 subtree). */ 214 215 enum demangle_component_type 216 { 217 /* A name, with a length and a pointer to a string. */ 218 DEMANGLE_COMPONENT_NAME, 219 /* A qualified name. The left subtree is a class or namespace or 220 some such thing, and the right subtree is a name qualified by 221 that class. */ 222 DEMANGLE_COMPONENT_QUAL_NAME, 223 /* A local name. The left subtree describes a function, and the 224 right subtree is a name which is local to that function. */ 225 DEMANGLE_COMPONENT_LOCAL_NAME, 226 /* A typed name. The left subtree is a name, and the right subtree 227 describes that name as a function. */ 228 DEMANGLE_COMPONENT_TYPED_NAME, 229 /* A template. The left subtree is a template name, and the right 230 subtree is a template argument list. */ 231 DEMANGLE_COMPONENT_TEMPLATE, 232 /* A template parameter. This holds a number, which is the template 233 parameter index. */ 234 DEMANGLE_COMPONENT_TEMPLATE_PARAM, 235 /* A function parameter. This holds a number, which is the index. */ 236 DEMANGLE_COMPONENT_FUNCTION_PARAM, 237 /* A constructor. This holds a name and the kind of 238 constructor. */ 239 DEMANGLE_COMPONENT_CTOR, 240 /* A destructor. This holds a name and the kind of destructor. */ 241 DEMANGLE_COMPONENT_DTOR, 242 /* A vtable. This has one subtree, the type for which this is a 243 vtable. */ 244 DEMANGLE_COMPONENT_VTABLE, 245 /* A VTT structure. This has one subtree, the type for which this 246 is a VTT. */ 247 DEMANGLE_COMPONENT_VTT, 248 /* A construction vtable. The left subtree is the type for which 249 this is a vtable, and the right subtree is the derived type for 250 which this vtable is built. */ 251 DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE, 252 /* A typeinfo structure. This has one subtree, the type for which 253 this is the tpeinfo structure. */ 254 DEMANGLE_COMPONENT_TYPEINFO, 255 /* A typeinfo name. This has one subtree, the type for which this 256 is the typeinfo name. */ 257 DEMANGLE_COMPONENT_TYPEINFO_NAME, 258 /* A typeinfo function. This has one subtree, the type for which 259 this is the tpyeinfo function. */ 260 DEMANGLE_COMPONENT_TYPEINFO_FN, 261 /* A thunk. This has one subtree, the name for which this is a 262 thunk. */ 263 DEMANGLE_COMPONENT_THUNK, 264 /* A virtual thunk. This has one subtree, the name for which this 265 is a virtual thunk. */ 266 DEMANGLE_COMPONENT_VIRTUAL_THUNK, 267 /* A covariant thunk. This has one subtree, the name for which this 268 is a covariant thunk. */ 269 DEMANGLE_COMPONENT_COVARIANT_THUNK, 270 /* A Java class. This has one subtree, the type. */ 271 DEMANGLE_COMPONENT_JAVA_CLASS, 272 /* A guard variable. This has one subtree, the name for which this 273 is a guard variable. */ 274 DEMANGLE_COMPONENT_GUARD, 275 /* A reference temporary. This has one subtree, the name for which 276 this is a temporary. */ 277 DEMANGLE_COMPONENT_REFTEMP, 278 /* A hidden alias. This has one subtree, the encoding for which it 279 is providing alternative linkage. */ 280 DEMANGLE_COMPONENT_HIDDEN_ALIAS, 281 /* A standard substitution. This holds the name of the 282 substitution. */ 283 DEMANGLE_COMPONENT_SUB_STD, 284 /* The restrict qualifier. The one subtree is the type which is 285 being qualified. */ 286 DEMANGLE_COMPONENT_RESTRICT, 287 /* The volatile qualifier. The one subtree is the type which is 288 being qualified. */ 289 DEMANGLE_COMPONENT_VOLATILE, 290 /* The const qualifier. The one subtree is the type which is being 291 qualified. */ 292 DEMANGLE_COMPONENT_CONST, 293 /* The restrict qualifier modifying a member function. The one 294 subtree is the type which is being qualified. */ 295 DEMANGLE_COMPONENT_RESTRICT_THIS, 296 /* The volatile qualifier modifying a member function. The one 297 subtree is the type which is being qualified. */ 298 DEMANGLE_COMPONENT_VOLATILE_THIS, 299 /* The const qualifier modifying a member function. The one subtree 300 is the type which is being qualified. */ 301 DEMANGLE_COMPONENT_CONST_THIS, 302 /* A vendor qualifier. The left subtree is the type which is being 303 qualified, and the right subtree is the name of the 304 qualifier. */ 305 DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL, 306 /* A pointer. The one subtree is the type which is being pointed 307 to. */ 308 DEMANGLE_COMPONENT_POINTER, 309 /* A reference. The one subtree is the type which is being 310 referenced. */ 311 DEMANGLE_COMPONENT_REFERENCE, 312 /* C++0x: An rvalue reference. The one subtree is the type which is 313 being referenced. */ 314 DEMANGLE_COMPONENT_RVALUE_REFERENCE, 315 /* A complex type. The one subtree is the base type. */ 316 DEMANGLE_COMPONENT_COMPLEX, 317 /* An imaginary type. The one subtree is the base type. */ 318 DEMANGLE_COMPONENT_IMAGINARY, 319 /* A builtin type. This holds the builtin type information. */ 320 DEMANGLE_COMPONENT_BUILTIN_TYPE, 321 /* A vendor's builtin type. This holds the name of the type. */ 322 DEMANGLE_COMPONENT_VENDOR_TYPE, 323 /* A function type. The left subtree is the return type. The right 324 subtree is a list of ARGLIST nodes. Either or both may be 325 NULL. */ 326 DEMANGLE_COMPONENT_FUNCTION_TYPE, 327 /* An array type. The left subtree is the dimension, which may be 328 NULL, or a string (represented as DEMANGLE_COMPONENT_NAME), or an 329 expression. The right subtree is the element type. */ 330 DEMANGLE_COMPONENT_ARRAY_TYPE, 331 /* A pointer to member type. The left subtree is the class type, 332 and the right subtree is the member type. CV-qualifiers appear 333 on the latter. */ 334 DEMANGLE_COMPONENT_PTRMEM_TYPE, 335 /* A fixed-point type. */ 336 DEMANGLE_COMPONENT_FIXED_TYPE, 337 /* A vector type. The left subtree is the number of elements, 338 the right subtree is the element type. */ 339 DEMANGLE_COMPONENT_VECTOR_TYPE, 340 /* An argument list. The left subtree is the current argument, and 341 the right subtree is either NULL or another ARGLIST node. */ 342 DEMANGLE_COMPONENT_ARGLIST, 343 /* A template argument list. The left subtree is the current 344 template argument, and the right subtree is either NULL or 345 another TEMPLATE_ARGLIST node. */ 346 DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, 347 /* An initializer list. The left subtree is either an explicit type or 348 NULL, and the right subtree is a DEMANGLE_COMPONENT_ARGLIST. */ 349 DEMANGLE_COMPONENT_INITIALIZER_LIST, 350 /* An operator. This holds information about a standard 351 operator. */ 352 DEMANGLE_COMPONENT_OPERATOR, 353 /* An extended operator. This holds the number of arguments, and 354 the name of the extended operator. */ 355 DEMANGLE_COMPONENT_EXTENDED_OPERATOR, 356 /* A typecast, represented as a unary operator. The one subtree is 357 the type to which the argument should be cast. */ 358 DEMANGLE_COMPONENT_CAST, 359 /* A nullary expression. The left subtree is the operator. */ 360 DEMANGLE_COMPONENT_NULLARY, 361 /* A unary expression. The left subtree is the operator, and the 362 right subtree is the single argument. */ 363 DEMANGLE_COMPONENT_UNARY, 364 /* A binary expression. The left subtree is the operator, and the 365 right subtree is a BINARY_ARGS. */ 366 DEMANGLE_COMPONENT_BINARY, 367 /* Arguments to a binary expression. The left subtree is the first 368 argument, and the right subtree is the second argument. */ 369 DEMANGLE_COMPONENT_BINARY_ARGS, 370 /* A trinary expression. The left subtree is the operator, and the 371 right subtree is a TRINARY_ARG1. */ 372 DEMANGLE_COMPONENT_TRINARY, 373 /* Arguments to a trinary expression. The left subtree is the first 374 argument, and the right subtree is a TRINARY_ARG2. */ 375 DEMANGLE_COMPONENT_TRINARY_ARG1, 376 /* More arguments to a trinary expression. The left subtree is the 377 second argument, and the right subtree is the third argument. */ 378 DEMANGLE_COMPONENT_TRINARY_ARG2, 379 /* A literal. The left subtree is the type, and the right subtree 380 is the value, represented as a DEMANGLE_COMPONENT_NAME. */ 381 DEMANGLE_COMPONENT_LITERAL, 382 /* A negative literal. Like LITERAL, but the value is negated. 383 This is a minor hack: the NAME used for LITERAL points directly 384 to the mangled string, but since negative numbers are mangled 385 using 'n' instead of '-', we want a way to indicate a negative 386 number which involves neither modifying the mangled string nor 387 allocating a new copy of the literal in memory. */ 388 DEMANGLE_COMPONENT_LITERAL_NEG, 389 /* A libgcj compiled resource. The left subtree is the name of the 390 resource. */ 391 DEMANGLE_COMPONENT_JAVA_RESOURCE, 392 /* A name formed by the concatenation of two parts. The left 393 subtree is the first part and the right subtree the second. */ 394 DEMANGLE_COMPONENT_COMPOUND_NAME, 395 /* A name formed by a single character. */ 396 DEMANGLE_COMPONENT_CHARACTER, 397 /* A number. */ 398 DEMANGLE_COMPONENT_NUMBER, 399 /* A decltype type. */ 400 DEMANGLE_COMPONENT_DECLTYPE, 401 /* Global constructors keyed to name. */ 402 DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS, 403 /* Global destructors keyed to name. */ 404 DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS, 405 /* A lambda closure type. */ 406 DEMANGLE_COMPONENT_LAMBDA, 407 /* A default argument scope. */ 408 DEMANGLE_COMPONENT_DEFAULT_ARG, 409 /* An unnamed type. */ 410 DEMANGLE_COMPONENT_UNNAMED_TYPE, 411 /* A transactional clone. This has one subtree, the encoding for 412 which it is providing alternative linkage. */ 413 DEMANGLE_COMPONENT_TRANSACTION_CLONE, 414 /* A non-transactional clone entry point. In the i386/x86_64 abi, 415 the unmangled symbol of a tm_callable becomes a thunk and the 416 non-transactional function version is mangled thus. */ 417 DEMANGLE_COMPONENT_NONTRANSACTION_CLONE, 418 /* A pack expansion. */ 419 DEMANGLE_COMPONENT_PACK_EXPANSION, 420 /* A cloned function. */ 421 DEMANGLE_COMPONENT_CLONE 422 }; 423 424 /* Types which are only used internally. */ 425 426 struct demangle_operator_info; 427 struct demangle_builtin_type_info; 428 429 /* A node in the tree representation is an instance of a struct 430 demangle_component. Note that the field names of the struct are 431 not well protected against macros defined by the file including 432 this one. We can fix this if it ever becomes a problem. */ 433 434 struct demangle_component 435 { 436 /* The type of this component. */ 437 enum demangle_component_type type; 438 439 union 440 { 441 /* For DEMANGLE_COMPONENT_NAME. */ 442 struct 443 { 444 /* A pointer to the name (which need not NULL terminated) and 445 its length. */ 446 const char *s; 447 int len; 448 } s_name; 449 450 /* For DEMANGLE_COMPONENT_OPERATOR. */ 451 struct 452 { 453 /* Operator. */ 454 const struct demangle_operator_info *op; 455 } s_operator; 456 457 /* For DEMANGLE_COMPONENT_EXTENDED_OPERATOR. */ 458 struct 459 { 460 /* Number of arguments. */ 461 int args; 462 /* Name. */ 463 struct demangle_component *name; 464 } s_extended_operator; 465 466 /* For DEMANGLE_COMPONENT_FIXED_TYPE. */ 467 struct 468 { 469 /* The length, indicated by a C integer type name. */ 470 struct demangle_component *length; 471 /* _Accum or _Fract? */ 472 short accum; 473 /* Saturating or not? */ 474 short sat; 475 } s_fixed; 476 477 /* For DEMANGLE_COMPONENT_CTOR. */ 478 struct 479 { 480 /* Kind of constructor. */ 481 enum gnu_v3_ctor_kinds kind; 482 /* Name. */ 483 struct demangle_component *name; 484 } s_ctor; 485 486 /* For DEMANGLE_COMPONENT_DTOR. */ 487 struct 488 { 489 /* Kind of destructor. */ 490 enum gnu_v3_dtor_kinds kind; 491 /* Name. */ 492 struct demangle_component *name; 493 } s_dtor; 494 495 /* For DEMANGLE_COMPONENT_BUILTIN_TYPE. */ 496 struct 497 { 498 /* Builtin type. */ 499 const struct demangle_builtin_type_info *type; 500 } s_builtin; 501 502 /* For DEMANGLE_COMPONENT_SUB_STD. */ 503 struct 504 { 505 /* Standard substitution string. */ 506 const char* string; 507 /* Length of string. */ 508 int len; 509 } s_string; 510 511 /* For DEMANGLE_COMPONENT_*_PARAM. */ 512 struct 513 { 514 /* Parameter index. */ 515 long number; 516 } s_number; 517 518 /* For DEMANGLE_COMPONENT_CHARACTER. */ 519 struct 520 { 521 int character; 522 } s_character; 523 524 /* For other types. */ 525 struct 526 { 527 /* Left (or only) subtree. */ 528 struct demangle_component *left; 529 /* Right subtree. */ 530 struct demangle_component *right; 531 } s_binary; 532 533 struct 534 { 535 /* subtree, same place as d_left. */ 536 struct demangle_component *sub; 537 /* integer. */ 538 int num; 539 } s_unary_num; 540 541 } u; 542 }; 543 544 /* People building mangled trees are expected to allocate instances of 545 struct demangle_component themselves. They can then call one of 546 the following functions to fill them in. */ 547 548 /* Fill in most component types with a left subtree and a right 549 subtree. Returns non-zero on success, zero on failure, such as an 550 unrecognized or inappropriate component type. */ 551 552 extern int 553 cplus_demangle_fill_component (struct demangle_component *fill, 554 enum demangle_component_type, 555 struct demangle_component *left, 556 struct demangle_component *right); 557 558 /* Fill in a DEMANGLE_COMPONENT_NAME. Returns non-zero on success, 559 zero for bad arguments. */ 560 561 extern int 562 cplus_demangle_fill_name (struct demangle_component *fill, 563 const char *, int); 564 565 /* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE, using the name of the 566 builtin type (e.g., "int", etc.). Returns non-zero on success, 567 zero if the type is not recognized. */ 568 569 extern int 570 cplus_demangle_fill_builtin_type (struct demangle_component *fill, 571 const char *type_name); 572 573 /* Fill in a DEMANGLE_COMPONENT_OPERATOR, using the name of the 574 operator and the number of arguments which it takes (the latter is 575 used to disambiguate operators which can be both binary and unary, 576 such as '-'). Returns non-zero on success, zero if the operator is 577 not recognized. */ 578 579 extern int 580 cplus_demangle_fill_operator (struct demangle_component *fill, 581 const char *opname, int args); 582 583 /* Fill in a DEMANGLE_COMPONENT_EXTENDED_OPERATOR, providing the 584 number of arguments and the name. Returns non-zero on success, 585 zero for bad arguments. */ 586 587 extern int 588 cplus_demangle_fill_extended_operator (struct demangle_component *fill, 589 int numargs, 590 struct demangle_component *nm); 591 592 /* Fill in a DEMANGLE_COMPONENT_CTOR. Returns non-zero on success, 593 zero for bad arguments. */ 594 595 extern int 596 cplus_demangle_fill_ctor (struct demangle_component *fill, 597 enum gnu_v3_ctor_kinds kind, 598 struct demangle_component *name); 599 600 /* Fill in a DEMANGLE_COMPONENT_DTOR. Returns non-zero on success, 601 zero for bad arguments. */ 602 603 extern int 604 cplus_demangle_fill_dtor (struct demangle_component *fill, 605 enum gnu_v3_dtor_kinds kind, 606 struct demangle_component *name); 607 608 /* This function translates a mangled name into a struct 609 demangle_component tree. The first argument is the mangled name. 610 The second argument is DMGL_* options. This returns a pointer to a 611 tree on success, or NULL on failure. On success, the third 612 argument is set to a block of memory allocated by malloc. This 613 block should be passed to free when the tree is no longer 614 needed. */ 615 616 extern struct demangle_component * 617 cplus_demangle_v3_components (const char *mangled, int options, void **mem); 618 619 /* This function takes a struct demangle_component tree and returns 620 the corresponding demangled string. The first argument is DMGL_* 621 options. The second is the tree to demangle. The third is a guess 622 at the length of the demangled string, used to initially allocate 623 the return buffer. The fourth is a pointer to a size_t. On 624 success, this function returns a buffer allocated by malloc(), and 625 sets the size_t pointed to by the fourth argument to the size of 626 the allocated buffer (not the length of the returned string). On 627 failure, this function returns NULL, and sets the size_t pointed to 628 by the fourth argument to 0 for an invalid tree, or to 1 for a 629 memory allocation error. */ 630 631 extern char * 632 cplus_demangle_print (int options, 633 const struct demangle_component *tree, 634 int estimated_length, 635 size_t *p_allocated_size); 636 637 /* This function takes a struct demangle_component tree and passes back 638 a demangled string in one or more calls to a callback function. 639 The first argument is DMGL_* options. The second is the tree to 640 demangle. The third is a pointer to a callback function; on each call 641 this receives an element of the demangled string, its length, and an 642 opaque value. The fourth is the opaque value passed to the callback. 643 The callback is called once or more to return the full demangled 644 string. The demangled element string is always nul-terminated, though 645 its length is also provided for convenience. In contrast to 646 cplus_demangle_print(), this function does not allocate heap memory 647 to grow output strings (except perhaps where alloca() is implemented 648 by malloc()), and so is normally safe for use where the heap has been 649 corrupted. On success, this function returns 1; on failure, 0. */ 650 651 extern int 652 cplus_demangle_print_callback (int options, 653 const struct demangle_component *tree, 654 demangle_callbackref callback, void *opaque); 655 656 #ifdef __cplusplus 657 } 658 #endif /* __cplusplus */ 659 660 #endif /* DEMANGLE_H */ 661