binutils/debug.h

   1 /* debug.h -- Describe generic debugging information.
   2    Copyright (C) 1995-2020 Free Software Foundation, Inc.
   3    Written by Ian Lance Taylor <ian@cygnus.com>.
   4
   5    This file is part of GNU Binutils.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  20    02110-1301, USA.  */
  21
  22 #ifndef DEBUG_H
  23 #define DEBUG_H
  24
  25 /* This header file describes a generic debugging information format.
  26    We may eventually have readers which convert different formats into
  27    this generic format, and writers which write it out.  The initial
  28    impetus for this was writing a converter from stabs to HP IEEE-695
  29    debugging format.  */
  30
  31 /* Different kinds of types.  */
  32
  33 enum debug_type_kind
  34 {
  35   /* Not used.  */
  36   DEBUG_KIND_ILLEGAL,
  37   /* Indirect via a pointer.  */
  38   DEBUG_KIND_INDIRECT,
  39   /* Void.  */
  40   DEBUG_KIND_VOID,
  41   /* Integer.  */
  42   DEBUG_KIND_INT,
  43   /* Floating point.  */
  44   DEBUG_KIND_FLOAT,
  45   /* Complex.  */
  46   DEBUG_KIND_COMPLEX,
  47   /* Boolean.  */
  48   DEBUG_KIND_BOOL,
  49   /* Struct.  */
  50   DEBUG_KIND_STRUCT,
  51   /* Union.  */
  52   DEBUG_KIND_UNION,
  53   /* Class.  */
  54   DEBUG_KIND_CLASS,
  55   /* Union class (can this really happen?).  */
  56   DEBUG_KIND_UNION_CLASS,
  57   /* Enumeration type.  */
  58   DEBUG_KIND_ENUM,
  59   /* Pointer.  */
  60   DEBUG_KIND_POINTER,
  61   /* Function.  */
  62   DEBUG_KIND_FUNCTION,
  63   /* Reference.  */
  64   DEBUG_KIND_REFERENCE,
  65   /* Range.  */
  66   DEBUG_KIND_RANGE,
  67   /* Array.  */
  68   DEBUG_KIND_ARRAY,
  69   /* Set.  */
  70   DEBUG_KIND_SET,
  71   /* Based pointer.  */
  72   DEBUG_KIND_OFFSET,
  73   /* Method.  */
  74   DEBUG_KIND_METHOD,
  75   /* Const qualified type.  */
  76   DEBUG_KIND_CONST,
  77   /* Volatile qualified type.  */
  78   DEBUG_KIND_VOLATILE,
  79   /* Named type.  */
  80   DEBUG_KIND_NAMED,
  81   /* Tagged type.  */
  82   DEBUG_KIND_TAGGED
  83 };
  84
  85 /* Different kinds of variables.  */
  86
  87 enum debug_var_kind
  88 {
  89   /* Not used.  */
  90   DEBUG_VAR_ILLEGAL,
  91   /* A global variable.  */
  92   DEBUG_GLOBAL,
  93   /* A static variable.  */
  94   DEBUG_STATIC,
  95   /* A local static variable.  */
  96   DEBUG_LOCAL_STATIC,
  97   /* A local variable.  */
  98   DEBUG_LOCAL,
  99   /* A register variable.  */
 100   DEBUG_REGISTER
 101 };
 102
 103 /* Different kinds of function parameters.  */
 104
 105 enum debug_parm_kind
 106 {
 107   /* Not used.  */
 108   DEBUG_PARM_ILLEGAL,
 109   /* A stack based parameter.  */
 110   DEBUG_PARM_STACK,
 111   /* A register parameter.  */
 112   DEBUG_PARM_REG,
 113   /* A stack based reference parameter.  */
 114   DEBUG_PARM_REFERENCE,
 115   /* A register reference parameter.  */
 116   DEBUG_PARM_REF_REG
 117 };
 118
 119 /* Different kinds of visibility.  */
 120
 121 enum debug_visibility
 122 {
 123   /* A public field (e.g., a field in a C struct).  */
 124   DEBUG_VISIBILITY_PUBLIC,
 125   /* A protected field.  */
 126   DEBUG_VISIBILITY_PROTECTED,
 127   /* A private field.  */
 128   DEBUG_VISIBILITY_PRIVATE,
 129   /* A field which should be ignored.  */
 130   DEBUG_VISIBILITY_IGNORE
 131 };
 132
 133 /* A type.  */
 134
 135 typedef struct debug_type_s *debug_type;
 136
 137 #define DEBUG_TYPE_NULL ((debug_type) NULL)
 138
 139 /* A field in a struct or union.  */
 140
 141 typedef struct debug_field_s *debug_field;
 142
 143 #define DEBUG_FIELD_NULL ((debug_field) NULL)
 144
 145 /* A base class for an object.  */
 146
 147 typedef struct debug_baseclass_s *debug_baseclass;
 148
 149 #define DEBUG_BASECLASS_NULL ((debug_baseclass) NULL)
 150
 151 /* A method of an object.  */
 152
 153 typedef struct debug_method_s *debug_method;
 154
 155 #define DEBUG_METHOD_NULL ((debug_method) NULL)
 156
 157 /* The arguments to a method function of an object.  These indicate
 158    which method to run.  */
 159
 160 typedef struct debug_method_variant_s *debug_method_variant;
 161
 162 #define DEBUG_METHOD_VARIANT_NULL ((debug_method_variant) NULL)
 163
 164 /* This structure is passed to debug_write.  It holds function
 165    pointers that debug_write will call based on the accumulated
 166    debugging information.  */
 167
 168 struct debug_write_fns
 169 {
 170   /* This is called at the start of each new compilation unit with the
 171      name of the main file in the new unit.  */
 172   bfd_boolean (*start_compilation_unit) (void *, const char *);
 173
 174   /* This is called at the start of each source file within a
 175      compilation unit, before outputting any global information for
 176      that file.  The argument is the name of the file.  */
 177   bfd_boolean (*start_source) (void *, const char *);
 178
 179   /* Each writer must keep a stack of types.  */
 180
 181   /* Push an empty type onto the type stack.  This type can appear if
 182      there is a reference to a type which is never defined.  */
 183   bfd_boolean (*empty_type) (void *);
 184
 185   /* Push a void type onto the type stack.  */
 186   bfd_boolean (*void_type) (void *);
 187
 188   /* Push an integer type onto the type stack, given the size and
 189      whether it is unsigned.  */
 190   bfd_boolean (*int_type) (void *, unsigned int, bfd_boolean);
 191
 192   /* Push a floating type onto the type stack, given the size.  */
 193   bfd_boolean (*float_type) (void *, unsigned int);
 194
 195   /* Push a complex type onto the type stack, given the size.  */
 196   bfd_boolean (*complex_type) (void *, unsigned int);
 197
 198   /* Push a bfd_boolean type onto the type stack, given the size.  */
 199   bfd_boolean (*bool_type) (void *, unsigned int);
 200
 201   /* Push an enum type onto the type stack, given the tag, a NULL
 202      terminated array of names and the associated values.  If there is
 203      no tag, the tag argument will be NULL.  If this is an undefined
 204      enum, the names and values arguments will be NULL.  */
 205   bfd_boolean (*enum_type)
 206     (void *, const char *, const char **, bfd_signed_vma *);
 207
 208   /* Pop the top type on the type stack, and push a pointer to that
 209      type onto the type stack.  */
 210   bfd_boolean (*pointer_type) (void *);
 211
 212   /* Push a function type onto the type stack.  The second argument
 213      indicates the number of argument types that have been pushed onto
 214      the stack.  If the number of argument types is passed as -1, then
 215      the argument types of the function are unknown, and no types have
 216      been pushed onto the stack.  The third argument is TRUE if the
 217      function takes a variable number of arguments.  The return type
 218      of the function is pushed onto the type stack below the argument
 219      types, if any.  */
 220   bfd_boolean (*function_type) (void *, int, bfd_boolean);
 221
 222   /* Pop the top type on the type stack, and push a reference to that
 223      type onto the type stack.  */
 224   bfd_boolean (*reference_type) (void *);
 225
 226   /* Pop the top type on the type stack, and push a range of that type
 227      with the given lower and upper bounds onto the type stack.  */
 228   bfd_boolean (*range_type) (void *, bfd_signed_vma, bfd_signed_vma);
 229
 230   /* Push an array type onto the type stack.  The top type on the type
 231      stack is the range, and the next type on the type stack is the
 232      element type.  These should be popped before the array type is
 233      pushed.  The arguments are the lower bound, the upper bound, and
 234      whether the array is a string.  */
 235   bfd_boolean (*array_type)
 236     (void *, bfd_signed_vma, bfd_signed_vma, bfd_boolean);
 237
 238   /* Pop the top type on the type stack, and push a set of that type
 239      onto the type stack.  The argument indicates whether this set is
 240      a bitstring.  */
 241   bfd_boolean (*set_type) (void *, bfd_boolean);
 242
 243   /* Push an offset type onto the type stack.  The top type on the
 244      type stack is the target type, and the next type on the type
 245      stack is the base type.  These should be popped before the offset
 246      type is pushed.  */
 247   bfd_boolean (*offset_type) (void *);
 248
 249   /* Push a method type onto the type stack.  If the second argument
 250      is TRUE, the top type on the stack is the class to which the
 251      method belongs; otherwise, the class must be determined by the
 252      class to which the method is attached.  The third argument is the
 253      number of argument types; these are pushed onto the type stack in
 254      reverse order (the first type popped is the last argument to the
 255      method).  A value of -1 for the third argument means that no
 256      argument information is available.  The fourth argument is TRUE
 257      if the function takes a variable number of arguments.  The next
 258      type on the type stack below the domain and the argument types is
 259      the return type of the method.  All these types must be popped,
 260      and then the method type must be pushed.  */
 261   bfd_boolean (*method_type) (void *, bfd_boolean, int, bfd_boolean);
 262
 263   /* Pop the top type off the type stack, and push a const qualified
 264      version of that type onto the type stack.  */
 265   bfd_boolean (*const_type) (void *);
 266
 267   /* Pop the top type off the type stack, and push a volatile
 268      qualified version of that type onto the type stack.  */
 269   bfd_boolean (*volatile_type) (void *);
 270
 271   /* Start building a struct.  This is followed by calls to the
 272      struct_field function, and finished by a call to the
 273      end_struct_type function.  The second argument is the tag; this
 274      will be NULL if there isn't one.  If the second argument is NULL,
 275      the third argument is a constant identifying this struct for use
 276      with tag_type.  The fourth argument is TRUE for a struct, FALSE
 277      for a union.  The fifth argument is the size.  If this is an
 278      undefined struct or union, the size will be 0 and struct_field
 279      will not be called before end_struct_type is called.  */
 280   bfd_boolean (*start_struct_type)
 281     (void *, const char *, unsigned int, bfd_boolean, unsigned int);
 282
 283   /* Add a field to the struct type currently being built.  The type
 284      of the field should be popped off the type stack.  The arguments
 285      are the name, the bit position, the bit size (may be zero if the
 286      field is not packed), and the visibility.  */
 287   bfd_boolean (*struct_field)
 288     (void *, const char *, bfd_vma, bfd_vma, enum debug_visibility);
 289
 290   /* Finish building a struct, and push it onto the type stack.  */
 291   bfd_boolean (*end_struct_type) (void *);
 292
 293   /* Start building a class.  This is followed by calls to several
 294      functions: struct_field, class_static_member, class_baseclass,
 295      class_start_method, class_method_variant,
 296      class_static_method_variant, and class_end_method.  The class is
 297      finished by a call to end_class_type.  The first five arguments
 298      are the same as for start_struct_type.  The sixth argument is
 299      TRUE if there is a virtual function table; if there is, the
 300      seventh argument is TRUE if the virtual function table can be
 301      found in the type itself, and is FALSE if the type of the object
 302      holding the virtual function table should be popped from the type
 303      stack.  */
 304   bfd_boolean (*start_class_type)
 305     (void *, const char *, unsigned int, bfd_boolean, unsigned int,
 306      bfd_boolean, bfd_boolean);
 307
 308   /* Add a static member to the class currently being built.  The
 309      arguments are the field name, the physical name, and the
 310      visibility.  The type must be popped off the type stack.  */
 311   bfd_boolean (*class_static_member)
 312     (void *, const char *, const char *, enum debug_visibility);
 313
 314   /* Add a baseclass to the class currently being built.  The type of
 315      the baseclass must be popped off the type stack.  The arguments
 316      are the bit position, whether the class is virtual, and the
 317      visibility.  */
 318   bfd_boolean (*class_baseclass)
 319     (void *, bfd_vma, bfd_boolean, enum debug_visibility);
 320
 321   /* Start adding a method to the class currently being built.  This
 322      is followed by calls to class_method_variant and
 323      class_static_method_variant to describe different variants of the
 324      method which take different arguments.  The method is finished
 325      with a call to class_end_method.  The argument is the method
 326      name.  */
 327   bfd_boolean (*class_start_method) (void *, const char *);
 328
 329   /* Describe a variant to the class method currently being built.
 330      The type of the variant must be popped off the type stack.  The
 331      second argument is the physical name of the function.  The
 332      following arguments are the visibility, whether the variant is
 333      const, whether the variant is volatile, the offset in the virtual
 334      function table, and whether the context is on the type stack
 335      (below the variant type).  */
 336   bfd_boolean (*class_method_variant)
 337     (void *, const char *, enum debug_visibility, bfd_boolean,
 338      bfd_boolean, bfd_vma, bfd_boolean);
 339
 340   /* Describe a static variant to the class method currently being
 341      built.  The arguments are the same as for class_method_variant,
 342      except that the last two arguments are omitted.  The type of the
 343      variant must be popped off the type stack.  */
 344   bfd_boolean (*class_static_method_variant)
 345     (void *, const char *, enum debug_visibility, bfd_boolean,
 346      bfd_boolean);
 347
 348   /* Finish describing a class method.  */
 349   bfd_boolean (*class_end_method) (void *);
 350
 351   /* Finish describing a class, and push it onto the type stack.  */
 352   bfd_boolean (*end_class_type) (void *);
 353
 354   /* Push a type on the stack which was given a name by an earlier
 355      call to typdef.  */
 356   bfd_boolean (*typedef_type) (void *, const char *);
 357
 358   /* Push a tagged type on the stack which was defined earlier.  If
 359      the second argument is not NULL, the type was defined by a call
 360      to tag.  If the second argument is NULL, the type was defined by
 361      a call to start_struct_type or start_class_type with a tag of
 362      NULL and the number of the third argument.  Either way, the
 363      fourth argument is the tag kind.  Note that this may be called
 364      for a struct (class) being defined, in between the call to
 365      start_struct_type (start_class_type) and the call to
 366      end_struct_type (end_class_type).  */
 367   bfd_boolean (*tag_type)
 368     (void *, const char *, unsigned int, enum debug_type_kind);
 369
 370   /* Pop the type stack, and typedef it to the given name.  */
 371   bfd_boolean (*typdef) (void *, const char *);
 372
 373   /* Pop the type stack, and declare it as a tagged struct or union or
 374      enum or whatever.  The tag passed down here is redundant, since
 375      was also passed when enum_type, start_struct_type, or
 376      start_class_type was called.  */
 377   bfd_boolean (*tag) (void *, const char *);
 378
 379   /* This is called to record a named integer constant.  */
 380   bfd_boolean (*int_constant) (void *, const char *, bfd_vma);
 381
 382   /* This is called to record a named floating point constant.  */
 383   bfd_boolean (*float_constant) (void *, const char *, double);
 384
 385   /* This is called to record a typed integer constant.  The type is
 386      popped off the type stack.  */
 387   bfd_boolean (*typed_constant) (void *, const char *, bfd_vma);
 388
 389   /* This is called to record a variable.  The type is popped off the
 390      type stack.  */
 391   bfd_boolean (*variable)
 392     (void *, const char *, enum debug_var_kind, bfd_vma);
 393
 394   /* Start writing out a function.  The return type must be popped off
 395      the stack.  The bfd_boolean is TRUE if the function is global.  This
 396      is followed by calls to function_parameter, followed by block
 397      information.  */
 398   bfd_boolean (*start_function) (void *, const char *, bfd_boolean);
 399
 400   /* Record a function parameter for the current function.  The type
 401      must be popped off the stack.  */
 402   bfd_boolean (*function_parameter)
 403     (void *, const char *, enum debug_parm_kind, bfd_vma);
 404
 405   /* Start writing out a block.  There is at least one top level block
 406      per function.  Blocks may be nested.  The argument is the
 407      starting address of the block.  */
 408   bfd_boolean (*start_block) (void *, bfd_vma);
 409
 410   /* Finish writing out a block.  The argument is the ending address
 411      of the block.  */
 412   bfd_boolean (*end_block) (void *, bfd_vma);
 413
 414   /* Finish writing out a function.  */
 415   bfd_boolean (*end_function) (void *);
 416
 417   /* Record line number information for the current compilation unit.  */
 418   bfd_boolean (*lineno) (void *, const char *, unsigned long, bfd_vma);
 419 };
 420
 421 /* Exported functions.  */
 422
 423 /* The first argument to most of these functions is a handle.  This
 424    handle is returned by the debug_init function.  The purpose of the
 425    handle is to permit the debugging routines to not use static
 426    variables, and hence to be reentrant.  This would be useful for a
 427    program which wanted to handle two executables simultaneously.  */
 428
 429 /* Return a debugging handle.  */
 430
 431 extern void *debug_init (void);
 432
 433 /* Set the source filename.  This implicitly starts a new compilation
 434    unit.  */
 435
 436 extern bfd_boolean debug_set_filename (void *, const char *);
 437
 438 /* Change source files to the given file name.  This is used for
 439    include files in a single compilation unit.  */
 440
 441 extern bfd_boolean debug_start_source (void *, const char *);
 442
 443 /* Record a function definition.  This implicitly starts a function
 444    block.  The debug_type argument is the type of the return value.
 445    The bfd_boolean indicates whether the function is globally visible.
 446    The bfd_vma is the address of the start of the function.  Currently
 447    the parameter types are specified by calls to
 448    debug_record_parameter.  */
 449
 450 extern bfd_boolean debug_record_function
 451   (void *, const char *, debug_type, bfd_boolean, bfd_vma);
 452
 453 /* Record a parameter for the current function.  */
 454
 455 extern bfd_boolean debug_record_parameter
 456   (void *, const char *, debug_type, enum debug_parm_kind, bfd_vma);
 457
 458 /* End a function definition.  The argument is the address where the
 459    function ends.  */
 460
 461 extern bfd_boolean debug_end_function (void *, bfd_vma);
 462
 463 /* Start a block in a function.  All local information will be
 464    recorded in this block, until the matching call to debug_end_block.
 465    debug_start_block and debug_end_block may be nested.  The argument
 466    is the address at which this block starts.  */
 467
 468 extern bfd_boolean debug_start_block (void *, bfd_vma);
 469
 470 /* Finish a block in a function.  This matches the call to
 471    debug_start_block.  The argument is the address at which this block
 472    ends.  */
 473
 474 extern bfd_boolean debug_end_block (void *, bfd_vma);
 475
 476 /* Associate a line number in the current source file with a given
 477    address.  */
 478
 479 extern bfd_boolean debug_record_line (void *, unsigned long, bfd_vma);
 480
 481 /* Start a named common block.  This is a block of variables that may
 482    move in memory.  */
 483
 484 extern bfd_boolean debug_start_common_block (void *, const char *);
 485
 486 /* End a named common block.  */
 487
 488 extern bfd_boolean debug_end_common_block (void *, const char *);
 489
 490 /* Record a named integer constant.  */
 491
 492 extern bfd_boolean debug_record_int_const (void *, const char *, bfd_vma);
 493
 494 /* Record a named floating point constant.  */
 495
 496 extern bfd_boolean debug_record_float_const (void *, const char *, double);
 497
 498 /* Record a typed constant with an integral value.  */
 499
 500 extern bfd_boolean debug_record_typed_const
 501   (void *, const char *, debug_type, bfd_vma);
 502
 503 /* Record a label.  */
 504
 505 extern bfd_boolean debug_record_label
 506   (void *, const char *, debug_type, bfd_vma);
 507
 508 /* Record a variable.  */
 509
 510 extern bfd_boolean debug_record_variable
 511   (void *, const char *, debug_type, enum debug_var_kind, bfd_vma);
 512
 513 /* Make an indirect type.  The first argument is a pointer to the
 514    location where the real type will be placed.  The second argument
 515    is the type tag, if there is one; this may be NULL; the only
 516    purpose of this argument is so that debug_get_type_name can return
 517    something useful.  This function may be used when a type is
 518    referenced before it is defined.  */
 519
 520 extern debug_type debug_make_indirect_type
 521   (void *, debug_type *, const char *);
 522
 523 /* Make a void type.  */
 524
 525 extern debug_type debug_make_void_type (void *);
 526
 527 /* Make an integer type of a given size.  The bfd_boolean argument is TRUE
 528    if the integer is unsigned.  */
 529
 530 extern debug_type debug_make_int_type (void *, unsigned int, bfd_boolean);
 531
 532 /* Make a floating point type of a given size.  FIXME: On some
 533    platforms, like an Alpha, you probably need to be able to specify
 534    the format.  */
 535
 536 extern debug_type debug_make_float_type (void *, unsigned int);
 537
 538 /* Make a boolean type of a given size.  */
 539
 540 extern debug_type debug_make_bool_type (void *, unsigned int);
 541
 542 /* Make a complex type of a given size.  */
 543
 544 extern debug_type debug_make_complex_type (void *, unsigned int);
 545
 546 /* Make a structure type.  The second argument is TRUE for a struct,
 547    FALSE for a union.  The third argument is the size of the struct.
 548    The fourth argument is a NULL terminated array of fields.  */
 549
 550 extern debug_type debug_make_struct_type
 551   (void *, bfd_boolean, bfd_vma, debug_field *);
 552
 553 /* Make an object type.  The first three arguments after the handle
 554    are the same as for debug_make_struct_type.  The next arguments are
 555    a NULL terminated array of base classes, a NULL terminated array of
 556    methods, the type of the object holding the virtual function table
 557    if it is not this object, and a bfd_boolean which is TRUE if this
 558    object has its own virtual function table.  */
 559
 560 extern debug_type debug_make_object_type
 561   (void *, bfd_boolean, bfd_vma, debug_field *, debug_baseclass *,
 562    debug_method *, debug_type, bfd_boolean);
 563
 564 /* Make an enumeration type.  The arguments are a null terminated
 565    array of strings, and an array of corresponding values.  */
 566
 567 extern debug_type debug_make_enum_type
 568   (void *, const char **, bfd_signed_vma *);
 569
 570 /* Make a pointer to a given type.  */
 571
 572 extern debug_type debug_make_pointer_type (void *, debug_type);
 573
 574 /* Make a function type.  The second argument is the return type.  The
 575    third argument is a NULL terminated array of argument types.  The
 576    fourth argument is TRUE if the function takes a variable number of
 577    arguments.  If the third argument is NULL, then the argument types
 578    are unknown.  */
 579
 580 extern debug_type debug_make_function_type
 581   (void *, debug_type, debug_type *, bfd_boolean);
 582
 583 /* Make a reference to a given type.  */
 584
 585 extern debug_type debug_make_reference_type (void *, debug_type);
 586
 587 /* Make a range of a given type from a lower to an upper bound.  */
 588
 589 extern debug_type debug_make_range_type
 590   (void *, debug_type, bfd_signed_vma, bfd_signed_vma);
 591
 592 /* Make an array type.  The second argument is the type of an element
 593    of the array.  The third argument is the type of a range of the
 594    array.  The fourth and fifth argument are the lower and upper
 595    bounds, respectively (if the bounds are not known, lower should be
 596    0 and upper should be -1).  The sixth argument is TRUE if this
 597    array is actually a string, as in C.  */
 598
 599 extern debug_type debug_make_array_type
 600   (void *, debug_type, debug_type, bfd_signed_vma, bfd_signed_vma,
 601    bfd_boolean);
 602
 603 /* Make a set of a given type.  For example, a Pascal set type.  The
 604    bfd_boolean argument is TRUE if this set is actually a bitstring, as in
 605    CHILL.  */
 606
 607 extern debug_type debug_make_set_type (void *, debug_type, bfd_boolean);
 608
 609 /* Make a type for a pointer which is relative to an object.  The
 610    second argument is the type of the object to which the pointer is
 611    relative.  The third argument is the type that the pointer points
 612    to.  */
 613
 614 extern debug_type debug_make_offset_type (void *, debug_type, debug_type);
 615
 616 /* Make a type for a method function.  The second argument is the
 617    return type.  The third argument is the domain.  The fourth
 618    argument is a NULL terminated array of argument types.  The fifth
 619    argument is TRUE if the function takes a variable number of
 620    arguments, in which case the array of argument types indicates the
 621    types of the first arguments.  The domain and the argument array
 622    may be NULL, in which case this is a stub method and that
 623    information is not available.  Stabs debugging uses this, and gets
 624    the argument types from the mangled name.  */
 625
 626 extern debug_type debug_make_method_type
 627   (void *, debug_type, debug_type, debug_type *, bfd_boolean);
 628
 629 /* Make a const qualified version of a given type.  */
 630
 631 extern debug_type debug_make_const_type (void *, debug_type);
 632
 633 /* Make a volatile qualified version of a given type.  */
 634
 635 extern debug_type debug_make_volatile_type (void *, debug_type);
 636
 637 /* Make an undefined tagged type.  For example, a struct which has
 638    been mentioned, but not defined.  */
 639
 640 extern debug_type debug_make_undefined_tagged_type
 641   (void *, const char *, enum debug_type_kind);
 642
 643 /* Make a base class for an object.  The second argument is the base
 644    class type.  The third argument is the bit position of this base
 645    class in the object.  The fourth argument is whether this is a
 646    virtual class.  The fifth argument is the visibility of the base
 647    class.  */
 648
 649 extern debug_baseclass debug_make_baseclass
 650   (void *, debug_type, bfd_vma, bfd_boolean, enum debug_visibility);
 651
 652 /* Make a field for a struct.  The second argument is the name.  The
 653    third argument is the type of the field.  The fourth argument is
 654    the bit position of the field.  The fifth argument is the size of
 655    the field (it may be zero).  The sixth argument is the visibility
 656    of the field.  */
 657
 658 extern debug_field debug_make_field
 659   (void *, const char *, debug_type, bfd_vma, bfd_vma, enum debug_visibility);
 660
 661 /* Make a static member of an object.  The second argument is the
 662    name.  The third argument is the type of the member.  The fourth
 663    argument is the physical name of the member (i.e., the name as a
 664    global variable).  The fifth argument is the visibility of the
 665    member.  */
 666
 667 extern debug_field debug_make_static_member
 668   (void *, const char *, debug_type, const char *, enum debug_visibility);
 669
 670 /* Make a method.  The second argument is the name, and the third
 671    argument is a NULL terminated array of method variants.  Each
 672    method variant is a method with this name but with different
 673    argument types.  */
 674
 675 extern debug_method debug_make_method
 676   (void *, const char *, debug_method_variant *);
 677
 678 /* Make a method variant.  The second argument is the physical name of
 679    the function.  The third argument is the type of the function,
 680    probably constructed by debug_make_method_type.  The fourth
 681    argument is the visibility.  The fifth argument is whether this is
 682    a const function.  The sixth argument is whether this is a volatile
 683    function.  The seventh argument is the index in the virtual
 684    function table, if any.  The eighth argument is the virtual
 685    function context.  */
 686
 687 extern debug_method_variant debug_make_method_variant
 688   (void *, const char *, debug_type, enum debug_visibility, bfd_boolean,
 689    bfd_boolean, bfd_vma, debug_type);
 690
 691 /* Make a static method argument.  The arguments are the same as for
 692    debug_make_method_variant, except that the last two are omitted
 693    since a static method can not also be virtual.  */
 694
 695 extern debug_method_variant debug_make_static_method_variant
 696   (void *, const char *, debug_type, enum debug_visibility, bfd_boolean,
 697    bfd_boolean);
 698
 699 /* Name a type.  This returns a new type with an attached name.  */
 700
 701 extern debug_type debug_name_type (void *, const char *, debug_type);
 702
 703 /* Give a tag to a type, such as a struct or union.  This returns a
 704    new type with an attached tag.  */
 705
 706 extern debug_type debug_tag_type (void *, const char *, debug_type);
 707
 708 /* Record the size of a given type.  */
 709
 710 extern bfd_boolean debug_record_type_size (void *, debug_type, unsigned int);
 711
 712 /* Find a named type.  */
 713
 714 extern debug_type debug_find_named_type (void *, const char *);
 715
 716 /* Find a tagged type.  */
 717
 718 extern debug_type debug_find_tagged_type
 719   (void *, const char *, enum debug_type_kind);
 720
 721 /* Get the kind of a type.  */
 722
 723 extern enum debug_type_kind debug_get_type_kind (void *, debug_type);
 724
 725 /* Get the name of a type.  */
 726
 727 extern const char *debug_get_type_name (void *, debug_type);
 728
 729 /* Get the size of a type.  */
 730
 731 extern bfd_vma debug_get_type_size (void *, debug_type);
 732
 733 /* Get the return type of a function or method type.  */
 734
 735 extern debug_type debug_get_return_type (void *, debug_type);
 736
 737 /* Get the NULL terminated array of parameter types for a function or
 738    method type (actually, parameter types are not currently stored for
 739    function types).  This may be used to determine whether a method
 740    type is a stub method or not.  The last argument points to a
 741    bfd_boolean which is set to TRUE if the function takes a variable
 742    number of arguments.  */
 743
 744 extern const debug_type *debug_get_parameter_types
 745   (void *, debug_type, bfd_boolean *);
 746
 747 /* Get the target type of a pointer or reference or const or volatile
 748    type.  */
 749
 750 extern debug_type debug_get_target_type (void *, debug_type);
 751
 752 /* Get the NULL terminated array of fields for a struct, union, or
 753    class.  */
 754
 755 extern const debug_field *debug_get_fields (void *, debug_type);
 756
 757 /* Get the type of a field.  */
 758
 759 extern debug_type debug_get_field_type (void *, debug_field);
 760
 761 /* Get the name of a field.  */
 762
 763 extern const char *debug_get_field_name (void *, debug_field);
 764
 765 /* Get the bit position of a field within the containing structure.
 766    If the field is a static member, this will return (bfd_vma) -1.  */
 767
 768 extern bfd_vma debug_get_field_bitpos (void *, debug_field);
 769
 770 /* Get the bit size of a field.  If the field is a static member, this
 771    will return (bfd_vma) -1.  */
 772
 773 extern bfd_vma debug_get_field_bitsize (void *, debug_field);
 774
 775 /* Get the visibility of a field.  */
 776
 777 extern enum debug_visibility debug_get_field_visibility (void *, debug_field);
 778
 779 /* Get the physical name of a field, if it is a static member.  If the
 780    field is not a static member, this will return NULL.  */
 781
 782 extern const char *debug_get_field_physname (void *, debug_field);
 783
 784 /* Write out the recorded debugging information.  This takes a set of
 785    function pointers which are called to do the actual writing.  The
 786    first void * is the debugging handle.  The second void * is a handle
 787    which is passed to the functions.  */
 788
 789 extern bfd_boolean debug_write
 790   (void *, const struct debug_write_fns *, void *);
 791
 792 #endif /* DEBUG_H */