binutils/debug.h

   1 /* debug.h -- Describe generic debugging information.
   2    Copyright (C) 1995, 1996 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 2 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., 59 Temple Place - Suite 330, Boston, MA
  20    02111-1307, 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 convertor 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   /* A global variable.  */
  90   DEBUG_GLOBAL,
  91   /* A static variable.  */
  92   DEBUG_STATIC,
  93   /* A local static variable.  */
  94   DEBUG_LOCAL_STATIC,
  95   /* A local variable.  */
  96   DEBUG_LOCAL,
  97   /* A register variable.  */
  98   DEBUG_REGISTER
  99 };
 100
 101 /* Different kinds of function parameters.  */
 102
 103 enum debug_parm_kind
 104 {
 105   /* A stack based parameter.  */
 106   DEBUG_PARM_STACK,
 107   /* A register parameter.  */
 108   DEBUG_PARM_REG,
 109   /* A stack based reference parameter.  */
 110   DEBUG_PARM_REFERENCE,
 111   /* A register reference parameter.  */
 112   DEBUG_PARM_REF_REG
 113 };
 114
 115 /* Different kinds of visibility.  */
 116
 117 enum debug_visibility
 118 {
 119   /* A public field (e.g., a field in a C struct).  */
 120   DEBUG_VISIBILITY_PUBLIC,
 121   /* A protected field.  */
 122   DEBUG_VISIBILITY_PROTECTED,
 123   /* A private field.  */
 124   DEBUG_VISIBILITY_PRIVATE,
 125   /* A field which should be ignored.  */
 126   DEBUG_VISIBILITY_IGNORE
 127 };
 128
 129 /* A type.  */
 130
 131 typedef struct debug_type *debug_type;
 132
 133 #define DEBUG_TYPE_NULL ((debug_type) NULL)
 134
 135 /* A field in a struct or union.  */
 136
 137 typedef struct debug_field *debug_field;
 138
 139 #define DEBUG_FIELD_NULL ((debug_field) NULL)
 140
 141 /* A base class for an object.  */
 142
 143 typedef struct debug_baseclass *debug_baseclass;
 144
 145 #define DEBUG_BASECLASS_NULL ((debug_baseclass) NULL)
 146
 147 /* A method of an object.  */
 148
 149 typedef struct debug_method *debug_method;
 150
 151 #define DEBUG_METHOD_NULL ((debug_method) NULL)
 152
 153 /* The arguments to a method function of an object.  These indicate
 154    which method to run.  */
 155
 156 typedef struct debug_method_variant *debug_method_variant;
 157
 158 #define DEBUG_METHOD_VARIANT_NULL ((debug_method_variant) NULL)
 159
 160 /* This structure is passed to debug_write.  It holds function
 161    pointers that debug_write will call based on the accumulated
 162    debugging information.  */
 163
 164 struct debug_write_fns
 165 {
 166   /* This is called at the start of each new compilation unit with the
 167      name of the main file in the new unit.  */
 168   boolean (*start_compilation_unit) PARAMS ((PTR, const char *));
 169
 170   /* This is called at the start of each source file within a
 171      compilation unit, before outputting any global information for
 172      that file.  The argument is the name of the file.  */
 173   boolean (*start_source) PARAMS ((PTR, const char *));
 174
 175   /* Each writer must keep a stack of types.  */
 176
 177   /* Push an empty type onto the type stack.  This type can appear if
 178      there is a reference to a type which is never defined.  */
 179   boolean (*empty_type) PARAMS ((PTR));
 180
 181   /* Push a void type onto the type stack.  */
 182   boolean (*void_type) PARAMS ((PTR));
 183
 184   /* Push an integer type onto the type stack, given the size and
 185      whether it is unsigned.  */
 186   boolean (*int_type) PARAMS ((PTR, unsigned int, boolean));
 187
 188   /* Push a floating type onto the type stack, given the size.  */
 189   boolean (*float_type) PARAMS ((PTR, unsigned int));
 190
 191   /* Push a complex type onto the type stack, given the size.  */
 192   boolean (*complex_type) PARAMS ((PTR, unsigned int));
 193
 194   /* Push a boolean type onto the type stack, given the size.  */
 195   boolean (*bool_type) PARAMS ((PTR, unsigned int));
 196
 197   /* Push an enum type onto the type stack, given the tag, a NULL
 198      terminated array of names and the associated values.  If there is
 199      no tag, the tag argument will be NULL.  If this is an undefined
 200      enum, the names and values arguments will be NULL.  */
 201   boolean (*enum_type) PARAMS ((PTR, const char *, const char **,
 202                                 bfd_signed_vma *));
 203
 204   /* Pop the top type on the type stack, and push a pointer to that
 205      type onto the type stack.  */
 206   boolean (*pointer_type) PARAMS ((PTR));
 207
 208   /* Push a function type onto the type stack.  The second argument
 209      indicates the number of argument types that have been pushed onto
 210      the stack.  If the number of argument types is passed as -1, then
 211      the argument types of the function are unknown, and no types have
 212      been pushed onto the stack.  The third argument is true if the
 213      function takes a variable number of arguments.  The return type
 214      of the function is pushed onto the type stack below the argument
 215      types, if any.  */
 216   boolean (*function_type) PARAMS ((PTR, int, boolean));
 217
 218   /* Pop the top type on the type stack, and push a reference to that
 219      type onto the type stack.  */
 220   boolean (*reference_type) PARAMS ((PTR));
 221
 222   /* Pop the top type on the type stack, and push a range of that type
 223      with the given lower and upper bounds onto the type stack.  */
 224   boolean (*range_type) PARAMS ((PTR, bfd_signed_vma, bfd_signed_vma));
 225
 226   /* Push an array type onto the type stack.  The top type on the type
 227      stack is the range, and the next type on the type stack is the
 228      element type.  These should be popped before the array type is
 229      pushed.  The arguments are the lower bound, the upper bound, and
 230      whether the array is a string.  */
 231   boolean (*array_type) PARAMS ((PTR, bfd_signed_vma, bfd_signed_vma,
 232                                  boolean));
 233
 234   /* Pop the top type on the type stack, and push a set of that type
 235      onto the type stack.  The argument indicates whether this set is
 236      a bitstring.  */
 237   boolean (*set_type) PARAMS ((PTR, boolean));
 238
 239   /* Push an offset type onto the type stack.  The top type on the
 240      type stack is the target type, and the next type on the type
 241      stack is the base type.  These should be popped before the offset
 242      type is pushed.  */
 243   boolean (*offset_type) PARAMS ((PTR));
 244
 245   /* Push a method type onto the type stack.  If the second argument
 246      is true, the top type on the stack is the class to which the
 247      method belongs; otherwise, the class must be determined by the
 248      class to which the method is attached.  The third argument is the
 249      number of argument types; these are pushed onto the type stack in
 250      reverse order (the first type popped is the last argument to the
 251      method).  A value of -1 for the third argument means that no
 252      argument information is available.  The fourth argument is true
 253      if the function takes a variable number of arguments.  The next
 254      type on the type stack below the domain and the argument types is
 255      the return type of the method.  All these types must be popped,
 256      and then the method type must be pushed.  */
 257   boolean (*method_type) PARAMS ((PTR, boolean, int, boolean));
 258
 259   /* Pop the top type off the type stack, and push a const qualified
 260      version of that type onto the type stack.  */
 261   boolean (*const_type) PARAMS ((PTR));
 262
 263   /* Pop the top type off the type stack, and push a volatile
 264      qualified version of that type onto the type stack.  */
 265   boolean (*volatile_type) PARAMS ((PTR));
 266
 267   /* Start building a struct.  This is followed by calls to the
 268      struct_field function, and finished by a call to the
 269      end_struct_type function.  The second argument is the tag; this
 270      will be NULL if there isn't one.  If the second argument is NULL,
 271      the third argument is a constant identifying this struct for use
 272      with tag_type.  The fourth argument is true for a struct, false
 273      for a union.  The fifth argument is the size.  If this is an
 274      undefined struct or union, the size will be 0 and struct_field
 275      will not be called before end_struct_type is called.  */
 276   boolean (*start_struct_type) PARAMS ((PTR, const char *, unsigned int,
 277                                         boolean, unsigned int));
 278
 279   /* Add a field to the struct type currently being built.  The type
 280      of the field should be popped off the type stack.  The arguments
 281      are the name, the bit position, the bit size (may be zero if the
 282      field is not packed), and the visibility.  */
 283   boolean (*struct_field) PARAMS ((PTR, const char *, bfd_vma, bfd_vma,
 284                                    enum debug_visibility));
 285
 286   /* Finish building a struct, and push it onto the type stack.  */
 287   boolean (*end_struct_type) PARAMS ((PTR));
 288
 289   /* Start building a class.  This is followed by calls to several
 290      functions: struct_field, class_static_member, class_baseclass,
 291      class_start_method, class_method_variant,
 292      class_static_method_variant, and class_end_method.  The class is
 293      finished by a call to end_class_type.  The first five arguments
 294      are the same as for start_struct_type.  The sixth argument is
 295      true if there is a virtual function table; if there is, the
 296      seventh argument is true if the virtual function table can be
 297      found in the type itself, and is false if the type of the object
 298      holding the virtual function table should be popped from the type
 299      stack.  */
 300   boolean (*start_class_type) PARAMS ((PTR, const char *, unsigned int,
 301                                        boolean, unsigned int, boolean,
 302                                        boolean));
 303
 304   /* Add a static member to the class currently being built.  The
 305      arguments are the field name, the physical name, and the
 306      visibility.  The type must be popped off the type stack.  */
 307   boolean (*class_static_member) PARAMS ((PTR, const char *, const char *,
 308                                           enum debug_visibility));
 309
 310   /* Add a baseclass to the class currently being built.  The type of
 311      the baseclass must be popped off the type stack.  The arguments
 312      are the bit position, whether the class is virtual, and the
 313      visibility.  */
 314   boolean (*class_baseclass) PARAMS ((PTR, bfd_vma, boolean,
 315                                       enum debug_visibility));
 316
 317   /* Start adding a method to the class currently being built.  This
 318      is followed by calls to class_method_variant and
 319      class_static_method_variant to describe different variants of the
 320      method which take different arguments.  The method is finished
 321      with a call to class_end_method.  The argument is the method
 322      name.  */
 323   boolean (*class_start_method) PARAMS ((PTR, const char *));
 324
 325   /* Describe a variant to the class method currently being built.
 326      The type of the variant must be popped off the type stack.  The
 327      second argument is the physical name of the function.  The
 328      following arguments are the visibility, whether the variant is
 329      const, whether the variant is volatile, the offset in the virtual
 330      function table, and whether the context is on the type stack
 331      (below the variant type).  */
 332   boolean (*class_method_variant) PARAMS ((PTR, const char *,
 333                                            enum debug_visibility,
 334                                            boolean, boolean,
 335                                            bfd_vma, boolean));
 336
 337   /* Describe a static variant to the class method currently being
 338      built.  The arguments are the same as for class_method_variant,
 339      except that the last two arguments are omitted.  The type of the
 340      variant must be popped off the type stack.  */
 341   boolean (*class_static_method_variant) PARAMS ((PTR, const char *,
 342                                                   enum debug_visibility,
 343                                                   boolean, boolean));
 344
 345   /* Finish describing a class method.  */
 346   boolean (*class_end_method) PARAMS ((PTR));
 347
 348   /* Finish describing a class, and push it onto the type stack.  */
 349   boolean (*end_class_type) PARAMS ((PTR));
 350
 351   /* Push a type on the stack which was given a name by an earlier
 352      call to typdef.  */
 353   boolean (*typedef_type) PARAMS ((PTR, const char *));
 354
 355   /* Push a tagged type on the stack which was defined earlier.  If
 356      the second argument is not NULL, the type was defined by a call
 357      to tag.  If the second argument is NULL, the type was defined by
 358      a call to start_struct_type or start_class_type with a tag of
 359      NULL and the number of the third argument.  Either way, the
 360      fourth argument is the tag kind.  Note that this may be called
 361      for a struct (class) being defined, in between the call to
 362      start_struct_type (start_class_type) and the call to
 363      end_struct_type (end_class_type).  */
 364   boolean (*tag_type) PARAMS ((PTR, const char *, unsigned int,
 365                                enum debug_type_kind));
 366
 367   /* Pop the type stack, and typedef it to the given name.  */
 368   boolean (*typdef) PARAMS ((PTR, const char *));
 369
 370   /* Pop the type stack, and declare it as a tagged struct or union or
 371      enum or whatever.  The tag passed down here is redundant, since
 372      was also passed when enum_type, start_struct_type, or
 373      start_class_type was called.  */
 374   boolean (*tag) PARAMS ((PTR, const char *));
 375
 376   /* This is called to record a named integer constant.  */
 377   boolean (*int_constant) PARAMS ((PTR, const char *, bfd_vma));
 378
 379   /* This is called to record a named floating point constant.  */
 380   boolean (*float_constant) PARAMS ((PTR, const char *, double));
 381
 382   /* This is called to record a typed integer constant.  The type is
 383      popped off the type stack.  */
 384   boolean (*typed_constant) PARAMS ((PTR, const char *, bfd_vma));
 385
 386   /* This is called to record a variable.  The type is popped off the
 387      type stack.  */
 388   boolean (*variable) PARAMS ((PTR, const char *, enum debug_var_kind,
 389                                bfd_vma));
 390
 391   /* Start writing out a function.  The return type must be popped off
 392      the stack.  The boolean is true if the function is global.  This
 393      is followed by calls to function_parameter, followed by block
 394      information.  */
 395   boolean (*start_function) PARAMS ((PTR, const char *, boolean));
 396
 397   /* Record a function parameter for the current function.  The type
 398      must be popped off the stack.  */
 399   boolean (*function_parameter) PARAMS ((PTR, const char *,
 400                                          enum debug_parm_kind, bfd_vma));
 401
 402   /* Start writing out a block.  There is at least one top level block
 403      per function.  Blocks may be nested.  The argument is the
 404      starting address of the block.  */
 405   boolean (*start_block) PARAMS ((PTR, bfd_vma));
 406
 407   /* Finish writing out a block.  The argument is the ending address
 408      of the block.  */
 409   boolean (*end_block) PARAMS ((PTR, bfd_vma));
 410
 411   /* Finish writing out a function.  */
 412   boolean (*end_function) PARAMS ((PTR));
 413
 414   /* Record line number information for the current compilation unit.  */
 415   boolean (*lineno) PARAMS ((PTR, const char *, unsigned long, bfd_vma));
 416 };
 417
 418 /* Exported functions.  */
 419
 420 /* The first argument to most of these functions is a handle.  This
 421    handle is returned by the debug_init function.  The purpose of the
 422    handle is to permit the debugging routines to not use static
 423    variables, and hence to be reentrant.  This would be useful for a
 424    program which wanted to handle two executables simultaneously.  */
 425
 426 /* Return a debugging handle.  */
 427
 428 extern PTR debug_init PARAMS ((void));
 429
 430 /* Set the source filename.  This implicitly starts a new compilation
 431    unit.  */
 432
 433 extern boolean debug_set_filename PARAMS ((PTR, const char *));
 434
 435 /* Append a string to the source filename.  */
 436
 437 extern boolean debug_append_filename PARAMS ((PTR, const char *));
 438
 439 /* Change source files to the given file name.  This is used for
 440    include files in a single compilation unit.  */
 441
 442 extern boolean debug_start_source PARAMS ((PTR, const char *));
 443
 444 /* Record a function definition.  This implicitly starts a function
 445    block.  The debug_type argument is the type of the return value.
 446    The boolean indicates whether the function is globally visible.
 447    The bfd_vma is the address of the start of the function.  Currently
 448    the parameter types are specified by calls to
 449    debug_record_parameter.  */
 450
 451 extern boolean debug_record_function
 452   PARAMS ((PTR, const char *, debug_type, boolean, bfd_vma));
 453
 454 /* Record a parameter for the current function.  */
 455
 456 extern boolean debug_record_parameter
 457   PARAMS ((PTR, const char *, debug_type, enum debug_parm_kind, bfd_vma));
 458
 459 /* End a function definition.  The argument is the address where the
 460    function ends.  */
 461
 462 extern boolean debug_end_function PARAMS ((PTR, bfd_vma));
 463
 464 /* Start a block in a function.  All local information will be
 465    recorded in this block, until the matching call to debug_end_block.
 466    debug_start_block and debug_end_block may be nested.  The argument
 467    is the address at which this block starts.  */
 468
 469 extern boolean debug_start_block PARAMS ((PTR, bfd_vma));
 470
 471 /* Finish a block in a function.  This matches the call to
 472    debug_start_block.  The argument is the address at which this block
 473    ends.  */
 474
 475 extern boolean debug_end_block PARAMS ((PTR, bfd_vma));
 476
 477 /* Associate a line number in the current source file with a given
 478    address.  */
 479
 480 extern boolean debug_record_line PARAMS ((PTR, unsigned long, bfd_vma));
 481
 482 /* Start a named common block.  This is a block of variables that may
 483    move in memory.  */
 484
 485 extern boolean debug_start_common_block PARAMS ((PTR, const char *));
 486
 487 /* End a named common block.  */
 488
 489 extern boolean debug_end_common_block PARAMS ((PTR, const char *));
 490
 491 /* Record a named integer constant.  */
 492
 493 extern boolean debug_record_int_const PARAMS ((PTR, const char *, bfd_vma));
 494
 495 /* Record a named floating point constant.  */
 496
 497 extern boolean debug_record_float_const PARAMS ((PTR, const char *, double));
 498
 499 /* Record a typed constant with an integral value.  */
 500
 501 extern boolean debug_record_typed_const
 502   PARAMS ((PTR, const char *, debug_type, bfd_vma));
 503
 504 /* Record a label.  */
 505
 506 extern boolean debug_record_label
 507   PARAMS ((PTR, const char *, debug_type, bfd_vma));
 508
 509 /* Record a variable.  */
 510
 511 extern boolean debug_record_variable
 512   PARAMS ((PTR, const char *, debug_type, enum debug_var_kind, bfd_vma));
 513
 514 /* Make an indirect type.  The first argument is a pointer to the
 515    location where the real type will be placed.  The second argument
 516    is the type tag, if there is one; this may be NULL; the only
 517    purpose of this argument is so that debug_get_type_name can return
 518    something useful.  This function may be used when a type is
 519    referenced before it is defined.  */
 520
 521 extern debug_type debug_make_indirect_type
 522   PARAMS ((PTR, debug_type *, const char *));
 523
 524 /* Make a void type.  */
 525
 526 extern debug_type debug_make_void_type PARAMS ((PTR));
 527
 528 /* Make an integer type of a given size.  The boolean argument is true
 529    if the integer is unsigned.  */
 530
 531 extern debug_type debug_make_int_type PARAMS ((PTR, unsigned int, boolean));
 532
 533 /* Make a floating point type of a given size.  FIXME: On some
 534    platforms, like an Alpha, you probably need to be able to specify
 535    the format.  */
 536
 537 extern debug_type debug_make_float_type PARAMS ((PTR, unsigned int));
 538
 539 /* Make a boolean type of a given size.  */
 540
 541 extern debug_type debug_make_bool_type PARAMS ((PTR, unsigned int));
 542
 543 /* Make a complex type of a given size.  */
 544
 545 extern debug_type debug_make_complex_type PARAMS ((PTR, unsigned int));
 546
 547 /* Make a structure type.  The second argument is true for a struct,
 548    false for a union.  The third argument is the size of the struct.
 549    The fourth argument is a NULL terminated array of fields.  */
 550
 551 extern debug_type debug_make_struct_type
 552   PARAMS ((PTR, boolean, bfd_vma, debug_field *));
 553
 554 /* Make an object type.  The first three arguments after the handle
 555    are the same as for debug_make_struct_type.  The next arguments are
 556    a NULL terminated array of base classes, a NULL terminated array of
 557    methods, the type of the object holding the virtual function table
 558    if it is not this object, and a boolean which is true if this
 559    object has its own virtual function table.  */
 560
 561 extern debug_type debug_make_object_type
 562   PARAMS ((PTR, boolean, bfd_vma, debug_field *, debug_baseclass *,
 563            debug_method *, debug_type, boolean));
 564
 565 /* Make an enumeration type.  The arguments are a null terminated
 566    array of strings, and an array of corresponding values.  */
 567
 568 extern debug_type debug_make_enum_type
 569   PARAMS ((PTR, const char **, bfd_signed_vma *));
 570
 571 /* Make a pointer to a given type.  */
 572
 573 extern debug_type debug_make_pointer_type
 574   PARAMS ((PTR, debug_type));
 575
 576 /* Make a function type.  The second argument is the return type.  The
 577    third argument is a NULL terminated array of argument types.  The
 578    fourth argument is true if the function takes a variable number of
 579    arguments.  If the third argument is NULL, then the argument types
 580    are unknown.  */
 581
 582 extern debug_type debug_make_function_type
 583   PARAMS ((PTR, debug_type, debug_type *, boolean));
 584
 585 /* Make a reference to a given type.  */
 586
 587 extern debug_type debug_make_reference_type PARAMS ((PTR, debug_type));
 588
 589 /* Make a range of a given type from a lower to an upper bound.  */
 590
 591 extern debug_type debug_make_range_type
 592   PARAMS ((PTR, debug_type, bfd_signed_vma, bfd_signed_vma));
 593
 594 /* Make an array type.  The second argument is the type of an element
 595    of the array.  The third argument is the type of a range of the
 596    array.  The fourth and fifth argument are the lower and upper
 597    bounds, respectively (if the bounds are not known, lower should be
 598    0 and upper should be -1).  The sixth argument is true if this
 599    array is actually a string, as in C.  */
 600
 601 extern debug_type debug_make_array_type
 602   PARAMS ((PTR, debug_type, debug_type, bfd_signed_vma, bfd_signed_vma,
 603            boolean));
 604
 605 /* Make a set of a given type.  For example, a Pascal set type.  The
 606    boolean argument is true if this set is actually a bitstring, as in
 607    CHILL.  */
 608
 609 extern debug_type debug_make_set_type PARAMS ((PTR, debug_type, boolean));
 610
 611 /* Make a type for a pointer which is relative to an object.  The
 612    second argument is the type of the object to which the pointer is
 613    relative.  The third argument is the type that the pointer points
 614    to.  */
 615
 616 extern debug_type debug_make_offset_type
 617   PARAMS ((PTR, debug_type, debug_type));
 618
 619 /* Make a type for a method function.  The second argument is the
 620    return type.  The third argument is the domain.  The fourth
 621    argument is a NULL terminated array of argument types.  The fifth
 622    argument is true if the function takes a variable number of
 623    arguments, in which case the array of argument types indicates the
 624    types of the first arguments.  The domain and the argument array
 625    may be NULL, in which case this is a stub method and that
 626    information is not available.  Stabs debugging uses this, and gets
 627    the argument types from the mangled name.  */
 628
 629 extern debug_type debug_make_method_type
 630   PARAMS ((PTR, debug_type, debug_type, debug_type *, boolean));
 631
 632 /* Make a const qualified version of a given type.  */
 633
 634 extern debug_type debug_make_const_type PARAMS ((PTR, debug_type));
 635
 636 /* Make a volatile qualified version of a given type.  */
 637
 638 extern debug_type debug_make_volatile_type PARAMS ((PTR, debug_type));
 639
 640 /* Make an undefined tagged type.  For example, a struct which has
 641    been mentioned, but not defined.  */
 642
 643 extern debug_type debug_make_undefined_tagged_type
 644   PARAMS ((PTR, const char *, enum debug_type_kind));
 645
 646 /* Make a base class for an object.  The second argument is the base
 647    class type.  The third argument is the bit position of this base
 648    class in the object (always 0 unless doing multiple inheritance).
 649    The fourth argument is whether this is a virtual class.  The fifth
 650    argument is the visibility of the base class.  */
 651
 652 extern debug_baseclass debug_make_baseclass
 653   PARAMS ((PTR, debug_type, bfd_vma, boolean, enum debug_visibility));
 654
 655 /* Make a field for a struct.  The second argument is the name.  The
 656    third argument is the type of the field.  The fourth argument is
 657    the bit position of the field.  The fifth argument is the size of
 658    the field (it may be zero).  The sixth argument is the visibility
 659    of the field.  */
 660
 661 extern debug_field debug_make_field
 662   PARAMS ((PTR, const char *, debug_type, bfd_vma, bfd_vma,
 663            enum debug_visibility));
 664
 665 /* Make a static member of an object.  The second argument is the
 666    name.  The third argument is the type of the member.  The fourth
 667    argument is the physical name of the member (i.e., the name as a
 668    global variable).  The fifth argument is the visibility of the
 669    member.  */
 670
 671 extern debug_field debug_make_static_member
 672   PARAMS ((PTR, const char *, debug_type, const char *,
 673            enum debug_visibility));
 674
 675 /* Make a method.  The second argument is the name, and the third
 676    argument is a NULL terminated array of method variants.  Each
 677    method variant is a method with this name but with different
 678    argument types.  */
 679
 680 extern debug_method debug_make_method
 681   PARAMS ((PTR, const char *, debug_method_variant *));
 682
 683 /* Make a method variant.  The second argument is the physical name of
 684    the function.  The third argument is the type of the function,
 685    probably constructed by debug_make_method_type.  The fourth
 686    argument is the visibility.  The fifth argument is whether this is
 687    a const function.  The sixth argument is whether this is a volatile
 688    function.  The seventh argument is the offset in the virtual
 689    function table, if any.  The eighth argument is the virtual
 690    function context.  FIXME: Are the const and volatile arguments
 691    necessary?  Could we just use debug_make_const_type?  The handling
 692    of the second argument is biased toward the way that stabs works.  */
 693
 694 extern debug_method_variant debug_make_method_variant
 695   PARAMS ((PTR, const char *, debug_type, enum debug_visibility, boolean,
 696            boolean, bfd_vma, debug_type));
 697
 698 /* Make a static method argument.  The arguments are the same as for
 699    debug_make_method_variant, except that the last two are omitted
 700    since a static method can not also be virtual.  */
 701
 702 extern debug_method_variant debug_make_static_method_variant
 703   PARAMS ((PTR, const char *, debug_type, enum debug_visibility, boolean,
 704            boolean));
 705
 706 /* Name a type.  This returns a new type with an attached name.  */
 707
 708 extern debug_type debug_name_type PARAMS ((PTR, const char *, debug_type));
 709
 710 /* Give a tag to a type, such as a struct or union.  This returns a
 711    new type with an attached tag.  */
 712
 713 extern debug_type debug_tag_type PARAMS ((PTR, const char *, debug_type));
 714
 715 /* Record the size of a given type.  */
 716
 717 extern boolean debug_record_type_size PARAMS ((PTR, debug_type, unsigned int));
 718
 719 /* Find a named type.  */
 720
 721 extern debug_type debug_find_named_type PARAMS ((PTR, const char *));
 722
 723 /* Find a tagged type.  */
 724
 725 extern debug_type debug_find_tagged_type
 726   PARAMS ((PTR, const char *, enum debug_type_kind));
 727
 728 /* Get the kind of a type.  */
 729
 730 extern enum debug_type_kind debug_get_type_kind PARAMS ((PTR, debug_type));
 731
 732 /* Get the name of a type.  */
 733
 734 extern const char *debug_get_type_name PARAMS ((PTR, debug_type));
 735
 736 /* Get the return type of a function or method type.  */
 737
 738 extern debug_type debug_get_return_type PARAMS ((PTR, debug_type));
 739
 740 /* Get the NULL terminated array of parameter types for a function or
 741    method type (actually, parameter types are not currently stored for
 742    function types).  This may be used to determine whether a method
 743    type is a stub method or not.  The last argument points to a
 744    boolean which is set to true if the function takes a variable
 745    number of arguments.  */
 746
 747 extern const debug_type *debug_get_parameter_types PARAMS ((PTR,
 748                                                             debug_type,
 749                                                             boolean *));
 750
 751 /* Get the target type of a pointer or reference or const or volatile
 752    type.  */
 753
 754 extern debug_type debug_get_target_type PARAMS ((PTR, debug_type));
 755
 756 /* Get the NULL terminated array of fields for a struct, union, or
 757    class.  */
 758
 759 extern const debug_field *debug_get_fields PARAMS ((PTR, debug_type));
 760
 761 /* Get the type of a field.  */
 762
 763 extern debug_type debug_get_field_type PARAMS ((PTR, debug_field));
 764
 765 /* Write out the recorded debugging information.  This takes a set of
 766    function pointers which are called to do the actual writing.  The
 767    first PTR is the debugging handle.  The second PTR is a handle
 768    which is passed to the functions.  */
 769
 770 extern boolean debug_write PARAMS ((PTR, const struct debug_write_fns *, PTR));
 771
 772 #endif /* DEBUG_H */