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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [include/] [hp-symtab.h] - Blame information for rev 816

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/* Definitions and structures for reading debug symbols from the
2
   native HP C compiler.
3
 
4
   Written by the Center for Software Science at the University of Utah
5
   and by Cygnus Support.
6
 
7
   Copyright 1994, 1995, 1998, 1999, 2003 Free Software Foundation, Inc.
8
 
9
   This program is free software; you can redistribute it and/or modify
10
   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 2 of the License, or
12
   (at your option) any later version.
13
 
14
   This program is distributed in the hope that it will be useful,
15
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
   GNU General Public License for more details.
18
 
19
   You should have received a copy of the GNU General Public License
20
   along with this program; if not, write to the Free Software
21
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
22
 
23
#ifndef HP_SYMTAB_INCLUDED
24
#define HP_SYMTAB_INCLUDED
25
 
26
/* General information:
27
 
28
   This header file defines and describes only the data structures
29
   necessary to read debug symbols produced by the HP C compiler,
30
   HP ANSI C++ compiler, and HP FORTRAN 90 compiler using the
31
   SOM object file format.
32
   (For a full description of the debug format, ftp hpux-symtab.h from
33
   jaguar.cs.utah.edu:/dist).
34
 
35
   Additional notes (Rich Title)
36
   This file is a reverse-engineered version of a file called
37
   "symtab.h" which exists internal to HP's Computer Languages Organization
38
   in /CLO/Components/DDE/obj/som/symtab.h. Because HP's version of
39
   the file is copyrighted and not distributed, it is necessary for
40
   GDB to use the reverse-engineered version that follows.
41
   Work was done by Cygnus to reverse-engineer the C subset of symtab.h.
42
   The WDB project has extended this to also contain the C++
43
   symbol definitions, the F90 symbol definitions,
44
   and the DOC (debugging-optimized-code) symbol definitions.
45
   In some cases (the C++ symbol definitions)
46
   I have added internal documentation here that
47
   goes beyond what is supplied in HP's symtab.h. If we someday
48
   unify these files again, the extra comments should be merged back
49
   into HP's symtab.h.
50
 
51
   -------------------------------------------------------------------
52
 
53
   Debug symbols are contained entirely within an unloadable space called
54
   $DEBUG$.  $DEBUG$ contains several subspaces which group related
55
   debug symbols.
56
 
57
   $GNTT$ contains information for global variables, types and contants.
58
 
59
   $LNTT$ contains information for procedures (including nesting), scoping
60
   information, local variables, types, and constants.
61
 
62
   $SLT$ contains source line information so that code addresses may be
63
   mapped to source lines.
64
 
65
   $VT$ contains various strings and constants for named objects (variables,
66
   typedefs, functions, etc).  Strings are stored as null-terminated character
67
   lists.  Constants always begin on word boundaries.  The first byte of
68
   the VT must be zero (a null string).
69
 
70
   $XT$ is not currently used by GDB.
71
 
72
   Many structures within the subspaces point to other structures within
73
   the same subspace, or to structures within a different subspace.  These
74
   pointers are represented as a structure index from the beginning of
75
   the appropriate subspace.  */
76
 
77
/* Used to describe where a constant is stored.  */
78
enum location_type
79
{
80
  LOCATION_IMMEDIATE,
81
  LOCATION_PTR,
82
  LOCATION_VT,
83
};
84
 
85
/* Languages supported by this debug format.  Within the data structures
86
   this type is limited to 4 bits for a maximum of 16 languages.  */
87
enum hp_language
88
{
89
  HP_LANGUAGE_UNKNOWN,
90
  HP_LANGUAGE_C,
91
  HP_LANGUAGE_FORTRAN,
92
  HP_LANGUAGE_F77 = HP_LANGUAGE_FORTRAN,
93
  HP_LANGUAGE_PASCAL,
94
  HP_LANGUAGE_MODCAL,
95
  HP_LANGUAGE_COBOL,
96
  HP_LANGUAGE_BASIC,
97
  HP_LANGUAGE_ADA,
98
  HP_LANGUAGE_CPLUSPLUS,
99
  HP_LANGUAGE_DMPASCAL
100
};
101
 
102
 
103
/* Basic data types available in this debug format.  Within the data
104
   structures this type is limited to 5 bits for a maximum of 32 basic
105
   data types.  */
106
enum hp_type
107
{
108
  HP_TYPE_UNDEFINED, /* 0 */
109
  HP_TYPE_BOOLEAN, /* 1 */
110
  HP_TYPE_CHAR, /* 2 */
111
  HP_TYPE_INT, /* 3 */
112
  HP_TYPE_UNSIGNED_INT, /* 4 */
113
  HP_TYPE_REAL, /* 5 */
114
  HP_TYPE_COMPLEX, /* 6 */
115
  HP_TYPE_STRING200, /* 7 */
116
  HP_TYPE_LONGSTRING200, /* 8 */
117
  HP_TYPE_TEXT, /* 9 */
118
  HP_TYPE_FLABEL, /* 10 */
119
  HP_TYPE_FTN_STRING_SPEC, /* 11 */
120
  HP_TYPE_MOD_STRING_SPEC, /* 12 */
121
  HP_TYPE_PACKED_DECIMAL, /* 13 */
122
  HP_TYPE_REAL_3000, /* 14 */
123
  HP_TYPE_MOD_STRING_3000, /* 15 */
124
  HP_TYPE_ANYPOINTER, /* 16 */
125
  HP_TYPE_GLOBAL_ANYPOINTER, /* 17 */
126
  HP_TYPE_LOCAL_ANYPOINTER, /* 18 */
127
  HP_TYPE_COMPLEXS3000, /* 19 */
128
  HP_TYPE_FTN_STRING_S300_COMPAT, /* 20 */
129
  HP_TYPE_FTN_STRING_VAX_COMPAT, /* 21 */
130
  HP_TYPE_BOOLEAN_S300_COMPAT, /* 22 */
131
  HP_TYPE_BOOLEAN_VAX_COMPAT, /* 23 */
132
  HP_TYPE_WIDE_CHAR, /* 24 */
133
  HP_TYPE_LONG, /* 25 */
134
  HP_TYPE_UNSIGNED_LONG, /* 26 */
135
  HP_TYPE_DOUBLE, /* 27 */
136
  HP_TYPE_TEMPLATE_ARG, /* 28 */
137
  HP_TYPE_VOID /* 29 */
138
};
139
 
140
/* An immediate name and type table entry.
141
 
142
   extension and immediate will always be one.
143
   global will always be zero.
144
   hp_type is the basic type this entry describes.
145
   bitlength is the length in bits for the basic type.  */
146
struct dnttp_immediate
147
{
148
  unsigned int extension:       1;
149
  unsigned int immediate:       1;
150
  unsigned int global:          1;
151
  unsigned int type:            5;
152
  unsigned int bitlength:       24;
153
};
154
 
155
/* A nonimmediate name and type table entry.
156
 
157
   extension will always be one.
158
   immediate will always be zero.
159
   if global is zero, this entry points into the LNTT
160
   if global is one, this entry points into the GNTT
161
   index is the index within the GNTT or LNTT for this entry.  */
162
struct dnttp_nonimmediate
163
{
164
  unsigned int extension:       1;
165
  unsigned int immediate:       1;
166
  unsigned int global:          1;
167
  unsigned int index:           29;
168
};
169
 
170
/* A pointer to an entry in the GNTT and LNTT tables.  It has two
171
   forms depending on the type being described.
172
 
173
   The immediate form is used for simple entries and is one
174
   word.
175
 
176
   The nonimmediate form is used for complex entries and contains
177
   an index into the LNTT or GNTT which describes the entire type.
178
 
179
   If a dnttpointer is -1, then it is a NIL entry.  */
180
 
181
#define DNTTNIL (-1)
182
typedef union dnttpointer
183
{
184
  struct dnttp_immediate    dntti;
185
  struct dnttp_nonimmediate dnttp;
186
  int word;
187
} dnttpointer;
188
 
189
/* An index into the source line table.  As with dnttpointers, a sltpointer
190
   of -1 indicates a NIL entry.  */
191
#define SLTNIL (-1)
192
typedef int sltpointer;
193
 
194
/* Index into DOC (= "Debugging Optimized Code") line table.  */
195
#define LTNIL (-1)
196
typedef int ltpointer;
197
 
198
/* Index into context table.  */
199
#define CTXTNIL (-1)
200
typedef int ctxtpointer;
201
 
202
/* Unsigned byte offset into the VT.  */
203
typedef unsigned int vtpointer;
204
 
205
/* A DNTT entry (used within the GNTT and LNTT).
206
 
207
   DNTT entries are variable sized objects, but are always a multiple
208
   of 3 words (we call each group of 3 words a "block").
209
 
210
   The first bit in each block is an extension bit.  This bit is zero
211
   for the first block of a DNTT entry.  If the entry requires more
212
   than one block, then this bit is set to one in all blocks after
213
   the first one.  */
214
 
215
/* Each DNTT entry describes a particular debug symbol (beginning of
216
   a source file, a function, variables, structures, etc.
217
 
218
   The type of the DNTT entry is stored in the "kind" field within the
219
   DNTT entry itself.  */
220
 
221
enum dntt_entry_type
222
{
223
  DNTT_TYPE_NIL = -1,
224
  DNTT_TYPE_SRCFILE,
225
  DNTT_TYPE_MODULE,
226
  DNTT_TYPE_FUNCTION,
227
  DNTT_TYPE_ENTRY,
228
  DNTT_TYPE_BEGIN,
229
  DNTT_TYPE_END,
230
  DNTT_TYPE_IMPORT,
231
  DNTT_TYPE_LABEL,
232
  DNTT_TYPE_FPARAM,
233
  DNTT_TYPE_SVAR,
234
  DNTT_TYPE_DVAR,
235
  DNTT_TYPE_HOLE1,
236
  DNTT_TYPE_CONST,
237
  DNTT_TYPE_TYPEDEF,
238
  DNTT_TYPE_TAGDEF,
239
  DNTT_TYPE_POINTER,
240
  DNTT_TYPE_ENUM,
241
  DNTT_TYPE_MEMENUM,
242
  DNTT_TYPE_SET,
243
  DNTT_TYPE_SUBRANGE,
244
  DNTT_TYPE_ARRAY,
245
  DNTT_TYPE_STRUCT,
246
  DNTT_TYPE_UNION,
247
  DNTT_TYPE_FIELD,
248
  DNTT_TYPE_VARIANT,
249
  DNTT_TYPE_FILE,
250
  DNTT_TYPE_FUNCTYPE,
251
  DNTT_TYPE_WITH,
252
  DNTT_TYPE_COMMON,
253
  DNTT_TYPE_COBSTRUCT,
254
  DNTT_TYPE_XREF,
255
  DNTT_TYPE_SA,
256
  DNTT_TYPE_MACRO,
257
  DNTT_TYPE_BLOCKDATA,
258
  DNTT_TYPE_CLASS_SCOPE,
259
  DNTT_TYPE_REFERENCE,
260
  DNTT_TYPE_PTRMEM,
261
  DNTT_TYPE_PTRMEMFUNC,
262
  DNTT_TYPE_CLASS,
263
  DNTT_TYPE_GENFIELD,
264
  DNTT_TYPE_VFUNC,
265
  DNTT_TYPE_MEMACCESS,
266
  DNTT_TYPE_INHERITANCE,
267
  DNTT_TYPE_FRIEND_CLASS,
268
  DNTT_TYPE_FRIEND_FUNC,
269
  DNTT_TYPE_MODIFIER,
270
  DNTT_TYPE_OBJECT_ID,
271
  DNTT_TYPE_MEMFUNC,
272
  DNTT_TYPE_TEMPLATE,
273
  DNTT_TYPE_TEMPLATE_ARG,
274
  DNTT_TYPE_FUNC_TEMPLATE,
275
  DNTT_TYPE_LINK,
276
  DNTT_TYPE_DYN_ARRAY_DESC,
277
  DNTT_TYPE_DESC_SUBRANGE,
278
  DNTT_TYPE_BEGIN_EXT,
279
  DNTT_TYPE_INLN,
280
  DNTT_TYPE_INLN_LIST,
281
  DNTT_TYPE_ALIAS,
282
  DNTT_TYPE_DOC_FUNCTION,
283
  DNTT_TYPE_DOC_MEMFUNC,
284
  DNTT_TYPE_MAX
285
};
286
 
287
/* DNTT_TYPE_SRCFILE:
288
 
289
   One DNTT_TYPE_SRCFILE symbol is output for the start of each source
290
   file and at the begin and end of an included file.  A DNTT_TYPE_SRCFILE
291
   entry is also output before each DNTT_TYPE_FUNC symbol so that debuggers
292
   can determine what file a function was defined in.
293
 
294
   LANGUAGE describes the source file's language.
295
 
296
   NAME points to an VT entry providing the source file's name.
297
 
298
   Note the name used for DNTT_TYPE_SRCFILE entries are exactly as seen
299
   by the compiler (ie they may be relative or absolute).  C include files
300
   via <> inclusion must use absolute paths.
301
 
302
   ADDRESS points to an SLT entry from which line number and code locations
303
   may be determined.  */
304
 
305
struct dntt_type_srcfile
306
{
307
  unsigned int extension:       1;
308
  unsigned int kind:            10;    /* DNTT_TYPE_SRCFILE */
309
  unsigned int language:        4;
310
  unsigned int unused:          17;
311
  vtpointer name;
312
  sltpointer address;
313
};
314
 
315
/* DNTT_TYPE_MODULE:
316
 
317
   A DNTT_TYPE_MODULE symbol is emitted for the start of a pascal
318
   module or C source file. A module indicates a compilation unit
319
   for name-scoping purposes; in that regard there should be
320
   a 1-1 correspondence between GDB "symtab"'s and MODULE symbol records.
321
 
322
   Each DNTT_TYPE_MODULE must have an associated DNTT_TYPE_END symbol.
323
 
324
   NAME points to a VT entry providing the module's name.  Note C
325
   source files are considered nameless modules.
326
 
327
   ALIAS point to a VT entry providing a secondary name.
328
 
329
   ADDRESS points to an SLT entry from which line number and code locations
330
   may be determined.  */
331
 
332
struct dntt_type_module
333
{
334
  unsigned int extension:       1;
335
  unsigned int kind:            10;     /* DNTT_TYPE_MODULE */
336
  unsigned int unused:          21;
337
  vtpointer name;
338
  vtpointer alias;
339
  dnttpointer unused2;
340
  sltpointer address;
341
};
342
 
343
/* DNTT_TYPE_FUNCTION,
344
   DNTT_TYPE_ENTRY,
345
   DNTT_TYPE_BLOCKDATA,
346
   DNTT_TYPE_MEMFUNC:
347
 
348
   A DNTT_TYPE_FUNCTION symbol is emitted for each function definition;
349
   a DNTT_TYPE_ENTRY symbols is used for secondary entry points.  Both
350
   symbols used the dntt_type_function structure.
351
   A DNTT_TYPE_BLOCKDATA symbol is emitted ...?
352
   A DNTT_TYPE_MEMFUNC symbol is emitted for inlined member functions (C++).
353
 
354
   Each of DNTT_TYPE_FUNCTION must have a matching DNTT_TYPE_END.
355
 
356
   GLOBAL is nonzero if the function has global scope.
357
 
358
   LANGUAGE describes the function's source language.
359
 
360
   OPT_LEVEL describes the optimization level the function was compiled
361
   with.
362
 
363
   VARARGS is nonzero if the function uses varargs.
364
 
365
   NAME points to a VT entry providing the function's name.
366
 
367
   ALIAS points to a VT entry providing a secondary name for the function.
368
 
369
   FIRSTPARAM points to a LNTT entry which describes the parameter list.
370
 
371
   ADDRESS points to an SLT entry from which line number and code locations
372
   may be determined.
373
 
374
   ENTRYADDR is the memory address corresponding the function's entry point
375
 
376
   RETVAL points to a LNTT entry describing the function's return value.
377
 
378
   LOWADDR is the lowest memory address associated with this function.
379
 
380
   HIADDR is the highest memory address associated with this function.  */
381
 
382
struct dntt_type_function
383
{
384
  unsigned int extension:       1;
385
  unsigned int kind:            10;     /* DNTT_TYPE_FUNCTION,
386
                                           DNTT_TYPE_ENTRY,
387
                                           DNTT_TYPE_BLOCKDATA
388
                                           or DNTT_TYPE_MEMFUNC */
389
  unsigned int global:          1;
390
  unsigned int language:        4;
391
  unsigned int nest_level:      5;
392
  unsigned int opt_level:       2;
393
  unsigned int varargs:         1;
394
  unsigned int lang_info:       4;
395
  unsigned int inlined:         1;
396
  unsigned int localalloc:      1;
397
  unsigned int expansion:       1;
398
  unsigned int unused:          1;
399
  vtpointer name;
400
  vtpointer alias;
401
  dnttpointer firstparam;
402
  sltpointer address;
403
  CORE_ADDR entryaddr;
404
  dnttpointer retval;
405
  CORE_ADDR lowaddr;
406
  CORE_ADDR hiaddr;
407
};
408
 
409
/* DNTT_TYPE_BEGIN:
410
 
411
   A DNTT_TYPE_BEGIN symbol is emitted to begin a new nested scope.
412
   Every DNTT_TYPE_BEGIN symbol must have a matching DNTT_TYPE_END symbol.
413
 
414
   CLASSFLAG is nonzero if this is the beginning of a c++ class definition.
415
 
416
   ADDRESS points to an SLT entry from which line number and code locations
417
   may be determined.  */
418
 
419
struct dntt_type_begin
420
{
421
  unsigned int extension:       1;
422
  unsigned int kind:            10;
423
  unsigned int classflag:       1;
424
  unsigned int unused:          20;
425
  sltpointer address;
426
};
427
 
428
/* DNTT_TYPE_END:
429
 
430
   A DNTT_TYPE_END symbol is emitted when closing a scope started by
431
   a DNTT_TYPE_MODULE, DNTT_TYPE_FUNCTION, DNTT_TYPE_WITH,
432
   DNTT_TYPE_COMMON, DNTT_TYPE_BEGIN, and DNTT_TYPE_CLASS_SCOPE symbols.
433
 
434
   ENDKIND describes what type of scope the DNTT_TYPE_END is closing
435
   (one of the above 6 kinds).
436
 
437
   CLASSFLAG is nonzero if this is the end of a c++ class definition.
438
 
439
   ADDRESS points to an SLT entry from which line number and code locations
440
   may be determined.
441
 
442
   BEGINSCOPE points to the LNTT entry which opened the scope.  */
443
 
444
struct dntt_type_end
445
{
446
  unsigned int extension:       1;
447
  unsigned int kind:            10;
448
  unsigned int endkind:         10;
449
  unsigned int classflag:       1;
450
  unsigned int unused:          10;
451
  sltpointer address;
452
  dnttpointer beginscope;
453
};
454
 
455
/* DNTT_TYPE_IMPORT is unused by GDB.  */
456
/* DNTT_TYPE_LABEL is unused by GDB.  */
457
 
458
/* DNTT_TYPE_FPARAM:
459
 
460
   A DNTT_TYPE_FPARAM symbol is emitted for a function argument.  When
461
   chained together the symbols represent an argument list for a function.
462
 
463
   REGPARAM is nonzero if this parameter was passed in a register.
464
 
465
   INDIRECT is nonzero if this parameter is a pointer to the parameter
466
   (pass by reference or pass by value for large items).
467
 
468
   LONGADDR is nonzero if the parameter is a 64bit pointer.
469
 
470
   NAME is a pointer into the VT for the parameter's name.
471
 
472
   LOCATION describes where the parameter is stored.  Depending on the
473
   parameter type LOCATION could be a register number, or an offset
474
   from the stack pointer.
475
 
476
   TYPE points to a NTT entry describing the type of this parameter.
477
 
478
   NEXTPARAM points to the LNTT entry describing the next parameter.  */
479
 
480
struct dntt_type_fparam
481
{
482
  unsigned int extension:       1;
483
  unsigned int kind:            10;
484
  unsigned int regparam:        1;
485
  unsigned int indirect:        1;
486
  unsigned int longaddr:        1;
487
  unsigned int copyparam:       1;
488
  unsigned int dflt:            1;
489
  unsigned int doc_ranges:      1;
490
  unsigned int misc_kind:       1;
491
  unsigned int unused:          14;
492
  vtpointer name;
493
  CORE_ADDR location;
494
  dnttpointer type;
495
  dnttpointer nextparam;
496
  int misc;
497
};
498
 
499
/* DNTT_TYPE_SVAR:
500
 
501
   A DNTT_TYPE_SVAR is emitted to describe a variable in static storage.
502
 
503
   GLOBAL is nonzero if the variable has global scope.
504
 
505
   INDIRECT is nonzero if the variable is a pointer to an object.
506
 
507
   LONGADDR is nonzero if the variable is in long pointer space.
508
 
509
   STATICMEM is nonzero if the variable is a member of a class.
510
 
511
   A_UNION is nonzero if the variable is an anonymous union member.
512
 
513
   NAME is a pointer into the VT for the variable's name.
514
 
515
   LOCATION provides the memory address for the variable.
516
 
517
   TYPE is a pointer into either the GNTT or LNTT which describes
518
   the type of this variable.  */
519
 
520
struct dntt_type_svar
521
{
522
  unsigned int extension:       1;
523
  unsigned int kind:            10;
524
  unsigned int global:          1;
525
  unsigned int indirect:        1;
526
  unsigned int longaddr:        1;
527
  unsigned int staticmem:       1;
528
  unsigned int a_union:         1;
529
  unsigned int unused1:         1;
530
  unsigned int thread_specific: 1;
531
  unsigned int unused2:         14;
532
  vtpointer name;
533
  CORE_ADDR location;
534
  dnttpointer type;
535
  unsigned int offset;
536
  unsigned int displacement;
537
};
538
 
539
/* DNTT_TYPE_DVAR:
540
 
541
   A DNTT_TYPE_DVAR is emitted to describe automatic variables and variables
542
   held in registers.
543
 
544
   GLOBAL is nonzero if the variable has global scope.
545
 
546
   INDIRECT is nonzero if the variable is a pointer to an object.
547
 
548
   REGVAR is nonzero if the variable is in a register.
549
 
550
   A_UNION is nonzero if the variable is an anonymous union member.
551
 
552
   NAME is a pointer into the VT for the variable's name.
553
 
554
   LOCATION provides the memory address or register number for the variable.
555
 
556
   TYPE is a pointer into either the GNTT or LNTT which describes
557
   the type of this variable.  */
558
 
559
struct dntt_type_dvar
560
{
561
  unsigned int extension:       1;
562
  unsigned int kind:            10;
563
  unsigned int global:          1;
564
  unsigned int indirect:        1;
565
  unsigned int regvar:          1;
566
  unsigned int a_union:         1;
567
  unsigned int unused:          17;
568
  vtpointer name;
569
  int location;
570
  dnttpointer type;
571
  unsigned int offset;
572
};
573
 
574
/* DNTT_TYPE_CONST:
575
 
576
   A DNTT_TYPE_CONST symbol is emitted for program constants.
577
 
578
   GLOBAL is nonzero if the constant has global scope.
579
 
580
   INDIRECT is nonzero if the constant is a pointer to an object.
581
 
582
   LOCATION_TYPE describes where to find the constant's value
583
   (in the VT, memory, or embedded in an instruction).
584
 
585
   CLASSMEM is nonzero if the constant is a member of a class.
586
 
587
   NAME is a pointer into the VT for the constant's name.
588
 
589
   LOCATION provides the memory address, register number or pointer
590
   into the VT for the constant's value.
591
 
592
   TYPE is a pointer into either the GNTT or LNTT which describes
593
   the type of this variable.  */
594
 
595
struct dntt_type_const
596
{
597
  unsigned int extension:       1;
598
  unsigned int kind:            10;
599
  unsigned int global:          1;
600
  unsigned int indirect:        1;
601
  unsigned int location_type:   3;
602
  unsigned int classmem:        1;
603
  unsigned int unused:          15;
604
  vtpointer name;
605
  CORE_ADDR location;
606
  dnttpointer type;
607
  unsigned int offset;
608
  unsigned int displacement;
609
};
610
 
611
/* DNTT_TYPE_TYPEDEF and DNTT_TYPE_TAGDEF:
612
 
613
   The same structure is used to describe typedefs and tagdefs.
614
 
615
   DNTT_TYPE_TYPEDEFS are associated with C "typedefs".
616
 
617
   DNTT_TYPE_TAGDEFs are associated with C "struct", "union", and "enum"
618
   tags, which may have the same name as a typedef in the same scope.
619
   Also they are associated with C++ "class" tags, which implicitly have
620
   the same name as the class type.
621
 
622
   GLOBAL is nonzero if the typedef/tagdef has global scope.
623
 
624
   TYPEINFO is used to determine if full type information is available
625
   for a tag.  (usually 1, but can be zero for opaque types in C).
626
 
627
   NAME is a pointer into the VT for the constant's name.
628
 
629
   TYPE points to the underlying type for the typedef/tagdef in the
630
   GNTT or LNTT.  */
631
 
632
struct dntt_type_type
633
{
634
  unsigned int extension:       1;
635
  unsigned int kind:            10;    /* DNTT_TYPE_TYPEDEF or
636
                                          DNTT_TYPE_TAGDEF.  */
637
  unsigned int global:          1;
638
  unsigned int typeinfo:        1;
639
  unsigned int unused:          19;
640
  vtpointer name;
641
  dnttpointer type;                    /* Underlying type, which for TAGDEF's may be
642
                                          DNTT_TYPE_STRUCT, DNTT_TYPE_UNION,
643
                                          DNTT_TYPE_ENUM, or DNTT_TYPE_CLASS.
644
                                          For TYPEDEF's other underlying types
645
                                          are also possible.  */
646
};
647
 
648
/* DNTT_TYPE_POINTER:
649
 
650
   Used to describe a pointer to an underlying type.
651
 
652
   POINTSTO is a pointer into the GNTT or LNTT for the type which this
653
   pointer points to.
654
 
655
   BITLENGTH is the length of the pointer (not the underlying type). */
656
 
657
struct dntt_type_pointer
658
{
659
  unsigned int extension:       1;
660
  unsigned int kind:            10;
661
  unsigned int unused:          21;
662
  dnttpointer pointsto;
663
  unsigned int bitlength;
664
};
665
 
666
 
667
/* DNTT_TYPE_ENUM:
668
 
669
   Used to describe enumerated types.
670
 
671
   FIRSTMEM is a pointer to a DNTT_TYPE_MEMENUM in the GNTT/LNTT which
672
   describes the first member (and contains a pointer to the chain of
673
   members).
674
 
675
   BITLENGTH is the number of bits used to hold the values of the enum's
676
   members.  */
677
 
678
struct dntt_type_enum
679
{
680
  unsigned int extension:       1;
681
  unsigned int kind:    10;
682
  unsigned int unused:          21;
683
  dnttpointer firstmem;
684
  unsigned int bitlength;
685
};
686
 
687
/* DNTT_TYPE_MEMENUM
688
 
689
   Used to describe members of an enumerated type.
690
 
691
   CLASSMEM is nonzero if this member is part of a class.
692
 
693
   NAME points into the VT for the name of this member.
694
 
695
   VALUE is the value of this enumeration member.
696
 
697
   NEXTMEM points to the next DNTT_TYPE_MEMENUM in the chain.  */
698
 
699
struct dntt_type_memenum
700
{
701
  unsigned int extension:       1;
702
  unsigned int kind:    10;
703
  unsigned int classmem:        1;
704
  unsigned int unused:          20;
705
  vtpointer name;
706
  unsigned int value;
707
  dnttpointer nextmem;
708
};
709
 
710
/* DNTT_TYPE_SET
711
 
712
   Used to describe PASCAL "set" type.
713
 
714
   DECLARATION describes the bitpacking of the set.
715
 
716
   SUBTYPE points to a DNTT entry describing the type of the members.
717
 
718
   BITLENGTH is the size of the set.  */
719
 
720
struct dntt_type_set
721
{
722
  unsigned int extension:       1;
723
  unsigned int kind:    10;
724
  unsigned int declaration:     2;
725
  unsigned int unused:          19;
726
  dnttpointer subtype;
727
  unsigned int bitlength;
728
};
729
 
730
/* DNTT_TYPE_SUBRANGE
731
 
732
   Used to describe subrange type.
733
 
734
   DYN_LOW describes the lower bound of the subrange:
735
 
736
     00 for a constant lower bound (found in LOWBOUND).
737
 
738
     01 for a dynamic lower bound with the lower bound found in the
739
     memory address pointed to by LOWBOUND.
740
 
741
     10 for a dynamic lower bound described by an variable found in the
742
     DNTT/LNTT (LOWBOUND would be a pointer into the DNTT/LNTT).
743
 
744
   DYN_HIGH is similar to DYN_LOW, except it describes the upper bound.
745
 
746
   SUBTYPE points to the type of the subrange.
747
 
748
   BITLENGTH is the length in bits needed to describe the subrange's
749
   values.  */
750
 
751
struct dntt_type_subrange
752
{
753
  unsigned int extension:       1;
754
  unsigned int kind:    10;
755
  unsigned int dyn_low:         2;
756
  unsigned int dyn_high:        2;
757
  unsigned int unused:          17;
758
  int lowbound;
759
  int highbound;
760
  dnttpointer subtype;
761
  unsigned int bitlength;
762
};
763
 
764
/* DNTT_TYPE_ARRAY
765
 
766
   Used to describe an array type.
767
 
768
   DECLARATION describes the bit packing used in the array.
769
 
770
   ARRAYISBYTES is nonzero if the field in arraylength describes the
771
   length in bytes rather than in bits.  A value of zero is used to
772
   describe an array with size 2**32.
773
 
774
   ELEMISBYTES is nonzero if the length if each element in the array
775
   is describes in bytes rather than bits.  A value of zero is used
776
   to an element with size 2**32.
777
 
778
   ELEMORDER is nonzero if the elements are indexed in increasing order.
779
 
780
   JUSTIFIED if the elements are left justified to index zero.
781
 
782
   ARRAYLENGTH is the length of the array.
783
 
784
   INDEXTYPE is a DNTT pointer to the type used to index the array.
785
 
786
   ELEMTYPE is a DNTT pointer to the type for the array elements.
787
 
788
   ELEMLENGTH is the length of each element in the array (including
789
   any padding).
790
 
791
   Multi-dimensional arrays are represented by ELEMTYPE pointing to
792
   another DNTT_TYPE_ARRAY.  */
793
 
794
struct dntt_type_array
795
{
796
  unsigned int extension:       1;
797
  unsigned int kind:    10;
798
  unsigned int declaration:     2;
799
  unsigned int dyn_low:         2;
800
  unsigned int dyn_high:        2;
801
  unsigned int arrayisbytes:    1;
802
  unsigned int elemisbytes:     1;
803
  unsigned int elemorder:       1;
804
  unsigned int justified:       1;
805
  unsigned int unused:          11;
806
  unsigned int arraylength;
807
  dnttpointer indextype;
808
  dnttpointer elemtype;
809
  unsigned int elemlength;
810
};
811
 
812
/* DNTT_TYPE_STRUCT
813
 
814
   DNTT_TYPE_STRUCT is used to describe a C structure.
815
 
816
   DECLARATION describes the bitpacking used.
817
 
818
   FIRSTFIELD is a DNTT pointer to the first field of the structure
819
   (each field contains a pointer to the next field, walk the list
820
   to access all fields of the structure).
821
 
822
   VARTAGFIELD and VARLIST are used for Pascal variant records.
823
 
824
   BITLENGTH is the size of the structure in bits.  */
825
 
826
struct dntt_type_struct
827
{
828
  unsigned int extension:       1;
829
  unsigned int kind:    10;
830
  unsigned int declaration:     2;
831
  unsigned int unused:          19;
832
  dnttpointer firstfield;
833
  dnttpointer vartagfield;
834
  dnttpointer varlist;
835
  unsigned int bitlength;
836
};
837
 
838
/* DNTT_TYPE_UNION
839
 
840
   DNTT_TYPE_UNION is used to describe a C union.
841
 
842
   FIRSTFIELD is a DNTT pointer to the beginning of the field chain.
843
 
844
   BITLENGTH is the size of the union in bits.  */
845
 
846
struct dntt_type_union
847
{
848
  unsigned int extension:       1;
849
  unsigned int kind:    10;
850
  unsigned int unused:          21;
851
  dnttpointer firstfield;
852
  unsigned int bitlength;
853
};
854
 
855
/* DNTT_TYPE_FIELD
856
 
857
   DNTT_TYPE_FIELD describes one field in a structure or union
858
   or C++ class.
859
 
860
   VISIBILITY is used to describe the visibility of the field
861
   (for c++.  public = 0, protected = 1, private = 2).
862
 
863
   A_UNION is nonzero if this field is a member of an anonymous union.
864
 
865
   STATICMEM is nonzero if this field is a static member of a template.
866
 
867
   NAME is a pointer into the VT for the name of the field.
868
 
869
   BITOFFSET gives the offset of this field in bits from the beginning
870
   of the structure or union this field is a member of.
871
 
872
   TYPE is a DNTT pointer to the type describing this field.
873
 
874
   BITLENGTH is the size of the entry in bits.
875
 
876
   NEXTFIELD is a DNTT pointer to the next field in the chain.  */
877
 
878
struct dntt_type_field
879
{
880
  unsigned int extension:       1;
881
  unsigned int kind:    10;
882
  unsigned int visibility:      2;
883
  unsigned int a_union:         1;
884
  unsigned int staticmem:       1;
885
  unsigned int unused:          17;
886
  vtpointer name;
887
  unsigned int bitoffset;
888
  dnttpointer type;
889
  unsigned int bitlength;
890
  dnttpointer nextfield;
891
};
892
 
893
/* DNTT_TYPE_VARIANT is unused by GDB.  */
894
/* DNTT_TYPE_FILE is unused by GDB.  */
895
 
896
/* DNTT_TYPE_FUNCTYPE
897
 
898
   I think this is used to describe a function type (e.g., would
899
   be emitted as part of a function-pointer description).
900
 
901
   VARARGS is nonzero if this function uses varargs.
902
 
903
   FIRSTPARAM is a DNTT pointer to the first entry in the parameter
904
   chain.
905
 
906
   RETVAL is a DNTT pointer to the type of the return value.  */
907
 
908
struct dntt_type_functype
909
{
910
  unsigned int extension:       1;
911
  unsigned int kind:            10;
912
  unsigned int varargs:         1;
913
  unsigned int info:            4;
914
  unsigned int unused:          16;
915
  unsigned int bitlength;
916
  dnttpointer firstparam;
917
  dnttpointer retval;
918
};
919
 
920
/* DNTT_TYPE_WITH is emitted by C++ to indicate "with" scoping semantics.
921
   (Probably also emitted by PASCAL to support "with"...).
922
 
923
   C++ example: Say "memfunc" is a method of class "c", and say
924
   "m" is a data member of class "c". Then from within "memfunc",
925
   it is legal to reference "m" directly (e.g. you don't have to
926
   say "this->m". The symbol table indicates
927
   this by emitting a DNTT_TYPE_WITH symbol within the function "memfunc",
928
   pointing to the type symbol for class "c".
929
 
930
   In GDB, this symbol record is unnecessary,
931
   because GDB's symbol lookup algorithm
932
   infers the "with" semantics when it sees a "this" argument to the member
933
   function. So GDB can safely ignore the DNTT_TYPE_WITH record.
934
 
935
   A DNTT_TYPE_WITH has a matching DNTT_TYPE_END symbol.  */
936
 
937
struct dntt_type_with
938
{
939
  unsigned int extension:       1;    /* always zero */
940
  unsigned int kind:            10;   /* always DNTT_TYPE_WITH */
941
  unsigned int addrtype:        2;    /* 0 => STATTYPE                */
942
                                      /* 1 => DYNTYPE                 */
943
                                      /* 2 => REGTYPE                 */
944
  unsigned int indirect:        1;    /* 1 => pointer to object       */
945
  unsigned int longaddr:        1;    /* 1 => in long pointer space   */
946
  unsigned int nestlevel:       6;    /* # of nesting levels back     */
947
  unsigned int doc_ranges:      1;    /* 1 => location is range list  */
948
  unsigned int unused:          10;
949
  long location;                      /* where stored (allocated)     */
950
  sltpointer address;
951
  dnttpointer type;                   /* type of with expression      */
952
  vtpointer name;                     /* name of with expression      */
953
  unsigned long  offset;              /* byte offset from location    */
954
};
955
 
956
/* DNTT_TYPE_COMMON is unsupported by GDB.  */
957
/* A DNTT_TYPE_COMMON symbol must have a matching DNTT_TYPE_END symbol */
958
 
959
/* DNTT_TYPE_COBSTRUCT is unsupported by GDB.  */
960
/* DNTT_TYPE_XREF is unsupported by GDB.  */
961
/* DNTT_TYPE_SA is unsupported by GDB.  */
962
/* DNTT_TYPE_MACRO is unsupported by GDB */
963
 
964
/* DNTT_TYPE_BLOCKDATA has the same structure as DNTT_TYPE_FUNCTION */
965
 
966
/* The following are the C++ specific SOM records */
967
 
968
/*  The purpose of the DNTT_TYPE_CLASS_SCOPE is to bracket C++ methods
969
    and indicate the method name belongs in the "class scope" rather
970
    than in the module they are being defined in. For example:
971
 
972
    class c {
973
    ...
974
    void memfunc(); // member function
975
    };
976
 
977
    void c::memfunc()   // definition of class c's "memfunc"
978
    {
979
    ...
980
    }
981
 
982
    main()
983
    {
984
    ...
985
    }
986
 
987
    In the above, the name "memfunc" is not directly visible from "main".
988
    I.e., you have to say "break c::memfunc".
989
    If it were a normal function (not a method), it would be visible
990
    via the simple "break memfunc". Since "memfunc" otherwise looks
991
    like a normal FUNCTION in the symbol table, the bracketing
992
    CLASS_SCOPE is what is used to indicate it is really a method.
993
 
994
 
995
   A DNTT_TYPE_CLASS_SCOPE symbol must have a matching DNTT_TYPE_END symbol.  */
996
 
997
struct dntt_type_class_scope
998
{
999
  unsigned int extension:   1;     /* Always zero.  */
1000
  unsigned int kind:       10;     /* Always DNTT_TYPE_CLASS_SCOPE.  */
1001
  unsigned int unused:     21;
1002
  sltpointer address         ;     /* Pointer to SLT entry.  */
1003
  dnttpointer type           ;     /* Pointer to class type DNTT.  */
1004
};
1005
 
1006
/* C++ reference parameter.
1007
   The structure of this record is the same as DNTT_TYPE_POINTER -
1008
   refer to struct dntt_type_pointer.  */
1009
 
1010
/* The next two describe C++ pointer-to-data-member type, and
1011
   pointer-to-member-function type, respectively.
1012
   DNTT_TYPE_PTRMEM and DNTT_TYPE_PTRMEMFUNC have the same structure.  */
1013
 
1014
struct dntt_type_ptrmem
1015
{
1016
  unsigned int extension:   1;     /* Always zero.  */
1017
  unsigned int kind:       10;     /* Always DNTT_TYPE_PTRMEM.  */
1018
  unsigned int unused:     21;
1019
  dnttpointer pointsto       ;     /* Pointer to class DNTT.  */
1020
  dnttpointer memtype        ;     /* Type of member.  */
1021
};
1022
 
1023
struct dntt_type_ptrmemfunc
1024
{
1025
  unsigned int extension:   1;     /* Always zero.  */
1026
  unsigned int kind:       10;     /* Always DNTT_TYPE_PTRMEMFUNC.  */
1027
  unsigned int unused:     21;
1028
  dnttpointer pointsto       ;     /* Pointer to class DNTT.  */
1029
  dnttpointer memtype        ;     /* Type of member.  */
1030
};
1031
 
1032
/* The DNTT_TYPE_CLASS symbol is emitted to describe a class type.
1033
   "memberlist" points to a chained list of FIELD or GENFIELD records
1034
   indicating the class members. "parentlist" points to a chained list
1035
   of INHERITANCE records indicating classes from which we inherit
1036
   fields.  */
1037
 
1038
struct dntt_type_class
1039
{
1040
  unsigned int extension:   1;     /* Always zero.  */
1041
  unsigned int kind:       10;     /* Always DNTT_TYPE_CLASS.  */
1042
  unsigned int abstract:    1;     /* Is this an abstract class?  */
1043
  unsigned int class_decl:  2;     /* 0=class,1=union,2=struct.  */
1044
  unsigned int expansion:   1;     /* 1=template expansion.  */
1045
  unsigned int unused:     17;
1046
  dnttpointer memberlist     ;     /* Ptr to chain of [GEN]FIELDs.  */
1047
  unsigned long vtbl_loc     ;     /* Offset in obj of ptr to vtbl.  */
1048
  dnttpointer parentlist     ;     /* Ptr to K_INHERITANCE list.  */
1049
  unsigned long bitlength    ;     /* Total at this level.  */
1050
  dnttpointer identlist      ;     /* Ptr to chain of class ident's.  */
1051
  dnttpointer friendlist     ;     /* Ptr to K_FRIEND list.  */
1052
  dnttpointer templateptr    ;     /* Ptr to template.  */
1053
  dnttpointer nextexp        ;     /* Ptr to next expansion.  */
1054
};
1055
 
1056
/* Class members are indicated via either the FIELD record (for
1057
   data members, same as for C struct fields), or by the GENFIELD record
1058
   (for member functions).  */
1059
 
1060
struct dntt_type_genfield
1061
{
1062
  unsigned int extension:   1;     /* Always zero.  */
1063
  unsigned int kind:       10;     /* Always DNTT_TYPE_GENFIELD.  */
1064
  unsigned int visibility:  2;     /* Pub = 0, prot = 1, priv = 2.  */
1065
  unsigned int a_union:     1;     /* 1 => anonymous union member.  */
1066
  unsigned int unused:     18;
1067
  dnttpointer field          ;     /* Pointer to field or qualifier.  */
1068
  dnttpointer nextfield      ;     /* Pointer to next field.  */
1069
};
1070
 
1071
/* C++ virtual functions.  */
1072
 
1073
struct dntt_type_vfunc
1074
{
1075
  unsigned int extension:   1;     /* always zero */
1076
  unsigned int kind:       10;     /* always DNTT_TYPE_VFUNC */
1077
  unsigned int pure:        1;     /* pure virtual function ?       */
1078
  unsigned int unused:     20;
1079
  dnttpointer funcptr        ;     /* points to FUNCTION symbol     */
1080
  unsigned long vtbl_offset  ;     /* offset into vtbl for virtual  */
1081
};
1082
 
1083
/* Not precisely sure what this is intended for - DDE ignores it.  */
1084
 
1085
struct dntt_type_memaccess
1086
{
1087
  unsigned int extension:   1;     /* always zero */
1088
  unsigned int kind:       10;     /* always DNTT_TYPE_MEMACCESS */
1089
  unsigned int unused:     21;
1090
  dnttpointer classptr       ;     /* pointer to base class         */
1091
  dnttpointer field          ;     /* pointer field                 */
1092
};
1093
 
1094
/* The DNTT_TYPE_INHERITANCE record describes derived classes.
1095
   In particular, the "parentlist" field of the CLASS record points
1096
   to a list of INHERITANCE records for classes from which we
1097
   inherit members.  */
1098
 
1099
struct dntt_type_inheritance
1100
{
1101
  unsigned int extension:   1;     /* always zero */
1102
  unsigned int kind:       10;     /* always DNTT_TYPE_INHERITANCE */
1103
  unsigned int Virtual:     1;     /* virtual base class ?          */
1104
  unsigned int visibility:  2;     /* pub = 0, prot = 1, priv = 2   */
1105
  unsigned int unused:     18;
1106
  dnttpointer classname      ;     /* first parent class, if any    */
1107
  unsigned long offset       ;     /* offset to start of base class */
1108
  dnttpointer next           ;     /* pointer to next K_INHERITANCE */
1109
  unsigned long future[2]    ;     /* padding to 3-word block end   */
1110
};
1111
 
1112
/* C++ "friend" classes ... */
1113
 
1114
struct dntt_type_friend_class
1115
{
1116
  unsigned int extension:   1;     /* always zero */
1117
  unsigned int kind:       10;     /* always DNTT_TYPE_FRIEND_CLASS */
1118
  unsigned int unused:     21;
1119
  dnttpointer classptr       ;     /* pointer to class DNTT         */
1120
  dnttpointer next           ;     /* next DNTT_FRIEND              */
1121
};
1122
 
1123
struct dntt_type_friend_func
1124
{
1125
  unsigned int extension:   1;     /* always zero */
1126
  unsigned int kind:       10;     /* always DNTT_TYPE_FRIEND_FUNC */
1127
  unsigned int unused:     21;
1128
  dnttpointer funcptr        ;     /* pointer to function           */
1129
  dnttpointer classptr       ;     /* pointer to class DNTT         */
1130
  dnttpointer next           ;     /* next DNTT_FRIEND              */
1131
  unsigned long future[2]    ;     /* padding to 3-word block end   */
1132
};
1133
 
1134
/* DDE appears to ignore the DNTT_TYPE_MODIFIER record.
1135
   It could perhaps be used to give better "ptype" output in GDB;
1136
   otherwise it is probably safe for GDB to ignore it also.  */
1137
 
1138
struct dntt_type_modifier
1139
{
1140
  unsigned int extension:   1;     /* always zero */
1141
  unsigned int kind:       10;     /* always DNTT_TYPE_MODIFIER */
1142
  unsigned int m_const:     1;     /* const                         */
1143
  unsigned int m_static:    1;     /* static                        */
1144
  unsigned int m_void:      1;     /* void                          */
1145
  unsigned int m_volatile:  1;     /* volatile                      */
1146
  unsigned int m_duplicate: 1;     /* duplicate                     */
1147
  unsigned int unused:     16;
1148
  dnttpointer type           ;     /* subtype                       */
1149
  unsigned long future       ;     /* padding to 3-word block end   */
1150
};
1151
 
1152
/* I'm not sure what this was intended for - DDE ignores it.  */
1153
 
1154
struct dntt_type_object_id
1155
{
1156
  unsigned int extension:   1;     /* always zero */
1157
  unsigned int kind:       10;     /* always DNTT_TYPE_OBJECT_ID */
1158
  unsigned int indirect:    1;     /* Is object_ident addr of addr? */
1159
  unsigned int unused:     20;
1160
  unsigned long object_ident ;     /* object identifier             */
1161
  unsigned long offset       ;     /* offset to start of base class */
1162
  dnttpointer next           ;     /* pointer to next K_OBJECT_ID   */
1163
  unsigned long segoffset    ;     /* for linker fixup              */
1164
  unsigned long future       ;     /* padding to 3-word block end   */
1165
};
1166
 
1167
/* No separate dntt_type_memfunc; same as dntt_type_func */
1168
 
1169
/* Symbol records to support templates. These only get used
1170
   in DDE's "describe" output (like GDB's "ptype").  */
1171
 
1172
/* The TEMPLATE record is the header for a template-class.
1173
   Like the CLASS record, a TEMPLATE record has a memberlist that
1174
   points to a list of template members. It also has an arglist
1175
   pointing to a list of TEMPLATE_ARG records.  */
1176
 
1177
struct dntt_type_template
1178
{
1179
  unsigned int extension:   1;     /* always zero */
1180
  unsigned int kind:       10;     /* always DNTT_TYPE_TEMPLATE */
1181
  unsigned int abstract:    1;     /* is this an abstract class?    */
1182
  unsigned int class_decl:  2;     /* 0=class,1=union,2=struct      */
1183
  unsigned int unused:     18;
1184
  dnttpointer memberlist     ;     /* ptr to chain of K_[GEN]FIELDs */
1185
  long unused2               ;     /* offset in obj of ptr to vtbl  */
1186
  dnttpointer parentlist     ;     /* ptr to K_INHERITANCE list     */
1187
  unsigned long bitlength    ;     /* total at this level           */
1188
  dnttpointer identlist      ;     /* ptr to chain of class ident's */
1189
  dnttpointer friendlist     ;     /* ptr to K_FRIEND list          */
1190
  dnttpointer arglist        ;     /* ptr to argument list          */
1191
  dnttpointer expansions     ;     /* ptr to expansion list         */
1192
};
1193
 
1194
/* Template-class arguments are a list of TEMPL_ARG records
1195
   chained together. The "name" field is the name of the formal.
1196
   E.g.:
1197
 
1198
     template <class T> class q { ... };
1199
 
1200
   Then "T" is the name of the formal argument.  */
1201
 
1202
struct dntt_type_templ_arg
1203
{
1204
  unsigned int extension:   1;     /* always zero */
1205
  unsigned int kind:       10;     /* always DNTT_TYPE_TEMPL_ARG */
1206
  unsigned int usagetype:   1;     /* 0 type-name 1 expression     */
1207
  unsigned int unused:     20;
1208
  vtpointer name             ;     /* name of argument             */
1209
  dnttpointer type           ;     /* for non type arguments       */
1210
  dnttpointer nextarg        ;     /* Next argument if any         */
1211
  long future[2]             ;     /* padding to 3-word block end  */
1212
};
1213
 
1214
/* FUNC_TEMPLATE records are sort of like FUNCTION, but are emitted
1215
   for template member functions. E.g.,
1216
 
1217
     template <class T> class q
1218
     {
1219
        ...
1220
        void f();
1221
        ...
1222
     };
1223
 
1224
   Within the list of FIELDs/GENFIELDs defining the member list
1225
   of the template "q", "f" would appear as a FUNC_TEMPLATE.
1226
   We'll also see instances of FUNCTION "f" records for each
1227
   instantiation of the template.  */
1228
 
1229
struct dntt_type_func_template
1230
{
1231
  unsigned int extension:   1;     /* always zero */
1232
  unsigned int kind:       10;     /* always DNTT_TYPE_FUNC_TEMPLATE */
1233
  unsigned int public:      1;     /* 1 => globally visible        */
1234
  unsigned int language:    4;     /* type of language             */
1235
  unsigned int level:       5;     /* nesting level (top level = 0)*/
1236
  unsigned int optimize:    2;     /* level of optimization        */
1237
  unsigned int varargs:     1;     /* ellipses.  Pascal/800 later  */
1238
  unsigned int info:        4;     /* lang-specific stuff; F_xxxx  */
1239
  unsigned int inlined:     1;
1240
  unsigned int localloc:    1;     /* 0 at top, 1 at end of block  */
1241
  unsigned int unused:      2;
1242
  vtpointer name             ;     /* name of function             */
1243
  vtpointer alias            ;     /* alternate name, if any       */
1244
  dnttpointer firstparam     ;     /* first FPARAM, if any         */
1245
  dnttpointer retval         ;     /* return type, if any          */
1246
  dnttpointer arglist        ;     /* ptr to argument list         */
1247
};
1248
 
1249
/* LINK is apparently intended to link together function template
1250
   definitions with their instantiations. However, it is not clear
1251
   why this would be needed, except to provide the information on
1252
   a "ptype" command. And as far as I can tell, aCC does not
1253
   generate this record.  */
1254
 
1255
struct dntt_type_link
1256
{
1257
  unsigned int extension:   1;     /* always zero */
1258
  unsigned int kind:       10;     /* always DNTT_TYPE_LINK */
1259
  unsigned int linkKind:    4;     /* always LINK_UNKNOWN          */
1260
  unsigned int unused:     17;
1261
  long future1               ;     /* expansion                    */
1262
  dnttpointer ptr1           ;     /* link from template           */
1263
  dnttpointer ptr2           ;     /* to expansion                 */
1264
  long future[2]             ;     /* padding to 3-word block end  */
1265
};
1266
 
1267
/* end of C++ specific SOM's.  */
1268
 
1269
/* DNTT_TYPE_DYN_ARRAY_DESC is unused by GDB */
1270
/* DNTT_TYPE_DESC_SUBRANGE is unused by GDB */
1271
/* DNTT_TYPE_BEGIN_EXT is unused by GDB */
1272
/* DNTT_TYPE_INLN is unused by GDB */
1273
/* DNTT_TYPE_INLN_LIST is unused by GDB */
1274
/* DNTT_TYPE_ALIAS is unused by GDB */
1275
 
1276
struct dntt_type_doc_function
1277
{
1278
  unsigned int extension: 1;   /* always zero                  */
1279
  unsigned int kind:     10;   /* K_DOC_FUNCTION or            */
1280
                               /* K_DOC_MEMFUNC                */
1281
  unsigned int global:    1;   /* 1 => globally visible        */
1282
  unsigned int language:  4;   /* type of language             */
1283
  unsigned int level:     5;   /* nesting level (top level = 0)*/
1284
  unsigned int optimize:  2;   /* level of optimization        */
1285
  unsigned int varargs:   1;   /* ellipses.  Pascal/800 later  */
1286
  unsigned int info:      4;   /* lang-specific stuff; F_xxxx  */
1287
  unsigned int inlined:   1;
1288
  unsigned int localloc:  1;   /* 0 at top, 1 at end of block  */
1289
  unsigned int expansion: 1;   /* 1 = function expansion       */
1290
  unsigned int doc_clone: 1;
1291
  vtpointer name;              /* name of function             */
1292
  vtpointer alias;             /* alternate name, if any       */
1293
  dnttpointer firstparam;      /* first FPARAM, if any         */
1294
  sltpointer address;          /* code and text locations      */
1295
  CORE_ADDR entryaddr;         /* address of entry point       */
1296
  dnttpointer retval;          /* return type, if any          */
1297
  CORE_ADDR lowaddr;           /* lowest address of function   */
1298
  CORE_ADDR hiaddr;            /* highest address of function  */
1299
  dnttpointer inline_list;     /* pointer to first inline    */
1300
  ltpointer lt_offset;         /* start of frag/cp line table  */
1301
  ctxtpointer ctxt_offset;     /* start of context table for this routine */
1302
};
1303
 
1304
/* DNTT_TYPE_DOC_MEMFUNC is unused by GDB */
1305
 
1306
/* DNTT_TYPE_GENERIC and DNTT_TYPE_BLOCK are convience structures
1307
   so we can examine a DNTT entry in a generic fashion.  */
1308
struct dntt_type_generic
1309
{
1310
  unsigned int word[9];
1311
};
1312
 
1313
struct dntt_type_block
1314
{
1315
  unsigned int extension:       1;
1316
  unsigned int kind:            10;
1317
  unsigned int unused:          21;
1318
  unsigned int word[2];
1319
};
1320
 
1321
/* One entry in a DNTT (either the LNTT or GNTT).
1322
   This is a union of the above 60 or so structure definitions.  */
1323
 
1324
union dnttentry
1325
{
1326
  struct dntt_type_srcfile dsfile;
1327
  struct dntt_type_module dmodule;
1328
  struct dntt_type_function dfunc;
1329
  struct dntt_type_function dentry;
1330
  struct dntt_type_begin dbegin;
1331
  struct dntt_type_end dend;
1332
  struct dntt_type_fparam dfparam;
1333
  struct dntt_type_svar dsvar;
1334
  struct dntt_type_dvar ddvar;
1335
  struct dntt_type_const dconst;
1336
  struct dntt_type_type dtype;
1337
  struct dntt_type_type dtag;
1338
  struct dntt_type_pointer dptr;
1339
  struct dntt_type_enum denum;
1340
  struct dntt_type_memenum dmember;
1341
  struct dntt_type_set dset;
1342
  struct dntt_type_subrange dsubr;
1343
  struct dntt_type_array darray;
1344
  struct dntt_type_struct dstruct;
1345
  struct dntt_type_union dunion;
1346
  struct dntt_type_field dfield;
1347
  struct dntt_type_functype dfunctype;
1348
  struct dntt_type_with dwith;
1349
  struct dntt_type_function dblockdata;
1350
  struct dntt_type_class_scope dclass_scope;
1351
  struct dntt_type_pointer dreference;
1352
  struct dntt_type_ptrmem dptrmem;
1353
  struct dntt_type_ptrmemfunc dptrmemfunc;
1354
  struct dntt_type_class dclass;
1355
  struct dntt_type_genfield dgenfield;
1356
  struct dntt_type_vfunc dvfunc;
1357
  struct dntt_type_memaccess dmemaccess;
1358
  struct dntt_type_inheritance dinheritance;
1359
  struct dntt_type_friend_class dfriend_class;
1360
  struct dntt_type_friend_func dfriend_func;
1361
  struct dntt_type_modifier dmodifier;
1362
  struct dntt_type_object_id dobject_id;
1363
  struct dntt_type_template dtemplate;
1364
  struct dntt_type_templ_arg dtempl_arg;
1365
  struct dntt_type_func_template dfunc_template;
1366
  struct dntt_type_link dlink;
1367
  struct dntt_type_doc_function ddocfunc;
1368
  struct dntt_type_generic dgeneric;
1369
  struct dntt_type_block dblock;
1370
};
1371
 
1372
/* Source line entry types.  */
1373
enum slttype
1374
{
1375
  SLT_NORMAL,
1376
  SLT_SRCFILE,
1377
  SLT_MODULE,
1378
  SLT_FUNCTION,
1379
  SLT_ENTRY,
1380
  SLT_BEGIN,
1381
  SLT_END,
1382
  SLT_WITH,
1383
  SLT_EXIT,
1384
  SLT_ASSIST,
1385
  SLT_MARKER,
1386
  SLT_CLASS_SCOPE,
1387
  SLT_INLN,
1388
  SLT_NORMAL_OFFSET,
1389
};
1390
 
1391
/* A normal source line entry.  Simply provides a mapping of a source
1392
   line number to a code address.
1393
 
1394
   SLTDESC will always be SLT_NORMAL or SLT_EXIT.  */
1395
 
1396
struct slt_normal
1397
{
1398
  unsigned int sltdesc: 4;
1399
  unsigned int line:    28;
1400
  CORE_ADDR address;
1401
};
1402
 
1403
struct slt_normal_off
1404
{
1405
  unsigned int sltdesc: 4;
1406
  unsigned int offset:  6;
1407
  unsigned int line:    22;
1408
  CORE_ADDR address;
1409
};
1410
 
1411
/* A special source line entry.  Provides a mapping of a declaration
1412
   to a line number.  These entries point back into the DNTT which
1413
   references them.  */
1414
 
1415
struct slt_special
1416
{
1417
  unsigned int sltdesc: 4;
1418
  unsigned int line:    28;
1419
  dnttpointer backptr;
1420
};
1421
 
1422
/* Used to describe nesting.
1423
 
1424
   For nested languages, an slt_assist entry must follow each SLT_FUNC
1425
   entry in the SLT.  The address field will point forward to the
1426
   first slt_normal entry within the function's scope.  */
1427
 
1428
struct slt_assist
1429
{
1430
  unsigned int sltdesc: 4;
1431
  unsigned int unused:  28;
1432
  sltpointer address;
1433
};
1434
 
1435
struct slt_generic
1436
{
1437
  unsigned int word[2];
1438
};
1439
 
1440
union sltentry
1441
{
1442
  struct slt_normal snorm;
1443
  struct slt_normal_off snormoff;
1444
  struct slt_special sspec;
1445
  struct slt_assist sasst;
1446
  struct slt_generic sgeneric;
1447
};
1448
 
1449
/* $LINES$ declarations
1450
   This is the line table used for optimized code, which is only present
1451
   in the new $PROGRAM_INFO$ debug space.  */
1452
 
1453
#define DST_LN_ESCAPE_FLAG1   15
1454
#define DST_LN_ESCAPE_FLAG2   14
1455
#define DST_LN_CTX_SPEC1      13  
1456
#define DST_LN_CTX_SPEC2      12
1457
 
1458
/* Escape function codes:  */
1459
 
1460
typedef enum
1461
{
1462
  dst_ln_pad,          /* pad byte */
1463
  dst_ln_escape_1,     /* reserved */
1464
  dst_ln_dpc1_dln1,    /* 1 byte line delta, 1 byte pc delta */
1465
  dst_ln_dpc2_dln2,    /* 2 bytes line delta, 2 bytes pc delta */
1466
  dst_ln_pc4_ln4,      /* 4 bytes ABSOLUTE line number, 4 bytes ABSOLUTE pc */
1467
  dst_ln_dpc0_dln1,    /* 1 byte line delta, pc delta = 0 */
1468
  dst_ln_ln_off_1,     /* statement escape, stmt # = 1 (2nd stmt on line) */
1469
  dst_ln_ln_off,       /* statement escape, stmt # = next byte */
1470
  dst_ln_entry,        /* entry escape, next byte is entry number */
1471
  dst_ln_exit,         /* exit escape */
1472
  dst_ln_stmt_end,     /* gap escape, 4 bytes pc delta */
1473
  dst_ln_stmt_cp,      /* current stmt is a critical point */
1474
  dst_ln_escape_12,    /* reserved */
1475
  dst_ln_escape_13,    /* this is an exception site record */
1476
  dst_ln_nxt_byte,     /* next byte contains the real escape code */
1477
  dst_ln_end,          /* end escape, final entry follows */
1478
  dst_ln_escape1_END_OF_ENUM
1479
}
1480
dst_ln_escape1_t;
1481
 
1482
typedef enum
1483
{
1484
  dst_ln_ctx_1,         /* next byte describes context switch with 5-bit */
1485
                        /* index into the image table and 3-bit run length. */
1486
                        /* If run length is 0, end with another cxt specifier or ctx_end */
1487
  dst_ln_ctx_2,         /* next 2 bytes switch context: 13 bit index, 3 bit run length */
1488
  dst_ln_ctx_4,         /* next 4 bytes switch context: 29 bit index, 3 bit run length */
1489
  dst_ln_ctx_end,       /* end current context */
1490
  dst_ln_col_run_1,     /* next byte is column position of start of next statement, */
1491
                        /* following byte is length of statement */
1492
  dst_ln_col_run_2,     /* next 2 bytes is column position of start of next statement, */
1493
                        /* following 2 bytes is length of statement */
1494
  dst_ln_init_base1,    /* next 4 bytes are absolute PC, followed by 1 byte of line number */
1495
  dst_ln_init_base2,    /* next 4 bytes are absolute PC, followed by 2 bytes of line number */
1496
  dst_ln_init_base3,    /* next 4 bytes are absolute PC, followed by 3 bytes of line number */
1497
  dst_ln_escape2_END_OF_ENUM
1498
}
1499
dst_ln_escape2_t;
1500
 
1501
typedef union
1502
{
1503
  struct
1504
  {
1505
    unsigned int     pc_delta : 4;      /* 4 bit pc delta */
1506
    int              ln_delta : 4;      /* 4 bit line number delta */
1507
  }
1508
  delta;
1509
 
1510
  struct
1511
  {
1512
    unsigned int     esc_flag : 4;      /* alias for pc_delta  */
1513
    unsigned int     esc_code : 4;      /* escape function code (dst_ln_escape1_t, or ...2_t */
1514
  }
1515
  esc;
1516
 
1517
  struct
1518
  {
1519
    unsigned int     esc_flag   : 4;      /* dst_ln_ctx_spec1, or dst_ln_ctx_spec2 */
1520
    unsigned int     run_length : 2;
1521
    unsigned int     ctx_index  : 2;      /* ...spec2 contains index;  ...spec1, index - 4 */
1522
  }
1523
  ctx_spec;
1524
 
1525
  char               sdata;               /* signed data byte */
1526
  unsigned char      udata;               /* unsigned data byte */
1527
}
1528
dst_ln_entry_t,
1529
  * dst_ln_entry_ptr_t;
1530
 
1531
/* Warning: although the above union occupies only 1 byte the compiler treats
1532
   it as having size 2 (the minimum size of a struct).  Therefore a sequence of
1533
   dst_ln_entry_t's cannot be described as an array, and walking through such a
1534
   sequence requires convoluted code such as
1535
        ln_ptr = (dst_ln_entry_ptr_t) (char*) ln_ptr + 1
1536
   We regret the inconvenience.  */
1537
 
1538
/* Structure for interpreting the byte following a dst_ln_ctx1 entry.  */
1539
typedef struct
1540
{
1541
    unsigned int          ctx1_index : 5;      /* 5 bit index into context table */
1542
    unsigned int          ctx1_run_length : 3; /* 3 bit run length */
1543
} dst_ln_ctx1_t,
1544
  *dst_ln_ctx1_ptr_t;
1545
 
1546
/* Structure for interpreting the bytes following a dst_ln_ctx2 entry.  */
1547
typedef struct
1548
{
1549
    unsigned int          ctx2_index : 13;     /* 13 bit index into context table */
1550
    unsigned int          ctx2_run_length : 3; /* 3 bit run length */
1551
} dst_ln_ctx2_t,
1552
  *dst_ln_ctx2_ptr_t;
1553
 
1554
/* Structure for interpreting the bytes following a dst_ln_ctx4 entry.  */
1555
typedef struct
1556
{
1557
    unsigned int          ctx4_index : 29;     /* 29 bit index into context table */
1558
    unsigned int          ctx4_run_length : 3; /* 3 bit run length */
1559
} dst_ln_ctx4_t,
1560
  *dst_ln_ctx4_ptr_t;
1561
 
1562
 
1563
/*  PXDB definitions.
1564
 
1565
   PXDB is a post-processor which takes the executable file
1566
   and massages the debug information so that the debugger may
1567
   start up and run more efficiently.  Some of the tasks
1568
   performed by PXDB are:
1569
 
1570
   o   Remove duplicate global type and variable information
1571
       from the GNTT,
1572
 
1573
   o   Append the GNTT onto the end of the LNTT and place both
1574
       back in the LNTT section,
1575
 
1576
   o   Build quick look-up tables (description follows) for
1577
       files, procedures, modules, and paragraphs (for Cobol),
1578
       placing these in the GNTT section,
1579
 
1580
   o   Reconstruct the header appearing in the header section
1581
       to access this information.
1582
 
1583
   The "quick look-up" tables are in the $GNTT$ sub-space, in
1584
   the following order:
1585
 
1586
       Procedures    -sorted by address
1587
       Source files  -sorted by address (of the
1588
                      generated code from routines)
1589
       Modules       -sorted by address
1590
       Classes       -<unsorted?>
1591
       Address Alias -sorted by index <?>
1592
       Object IDs    -sorted by object identifier
1593
 
1594
   Most quick entries have (0-based) indices into the LNTT tables to
1595
   the full entries for the item it describes.
1596
 
1597
   The post-PXDB header is in the $HEADER$ sub-space.  Alas, it
1598
   occurs in different forms, depending on the optimization level
1599
   in the compilation step and whether PXDB was run or not. The
1600
   worst part is the forms aren't self-describing, so we'll have
1601
   to grovel in the bits to figure out what kind we're looking at
1602
   (see hp_get_header in hp-psymtab-read.c).  */
1603
 
1604
/* PXDB versions.  */
1605
 
1606
#define PXDB_VERSION_CPLUSPLUS  1
1607
#define PXDB_VERSION_7_4        2
1608
#define PXDB_VERSION_CPP_30     3
1609
#define PXDB_VERSION_DDE_3_2A   4
1610
#define PXDB_VERSION_DDE_3_2    5
1611
#define PXDB_VERSION_DDE_4_0    6
1612
 
1613
#define PXDB_VERSION_2_1        1
1614
 
1615
/* Header version for the case that there is no DOC info
1616
   but the executable has been processed by pxdb (the easy
1617
   case, from "cc -g").  */
1618
 
1619
typedef struct PXDB_struct
1620
{
1621
  int              pd_entries;   /* # of entries in function look-up table */
1622
  int              fd_entries;   /* # of entries in file look-up table */
1623
  int              md_entries;   /* # of entries in module look-up table */
1624
  unsigned int     pxdbed : 1;   /* 1 => file has been preprocessed      */
1625
  unsigned int     bighdr : 1;   /* 1 => this header contains 'time' word */
1626
  unsigned int     sa_header : 1;/* 1 => created by SA version of pxdb */
1627
                                   /*   used for version check in xdb */
1628
  unsigned int     inlined: 1;   /* one or more functions have been inlined */
1629
  unsigned int     spare:12;
1630
  short            version;      /* pxdb header version */
1631
  int              globals;      /* index into the DNTT where GNTT begins */
1632
  unsigned int     time;         /* modify time of file before being pxdbed */
1633
  int              pg_entries;   /* # of entries in label look-up table */
1634
  int              functions;    /* actual number of functions */
1635
  int              files;        /* actual number of files */
1636
  int              cd_entries;   /* # of entries in class look-up table */
1637
  int              aa_entries;   /* # of entries in addr alias look-up table */
1638
  int              oi_entries;   /* # of entries in object id look-up table */
1639
} PXDB_header, *PXDB_header_ptr;
1640
 
1641
/* Header version for the case that there is no DOC info and the
1642
   executable has NOT been processed by pxdb.  */
1643
 
1644
typedef struct XDB_header_struct
1645
{
1646
  long gntt_length;
1647
  long lntt_length;
1648
  long slt_length;
1649
  long vt_length;
1650
  long xt_length;
1651
} XDB_header;
1652
 
1653
/* Header version for the case that there is DOC info and the
1654
   executable has been processed by pxdb. */
1655
 
1656
typedef struct DOC_info_PXDB_header_struct
1657
{
1658
  unsigned int xdb_header: 1;         /* bit set if this is post-3.1 xdb */
1659
  unsigned int doc_header: 1;         /* bit set if this is doc-style header */
1660
  unsigned int version: 8;            /* version of pxdb see defines
1661
                                         PXDB_VERSION_* in this file.  */
1662
  unsigned int reserved_for_flags: 16;/* for future use; -- must be
1663
                                         set to zero.  */
1664
  unsigned int has_aux_pd_table: 1;   /* $GNTT$ has aux PD table */
1665
  unsigned int has_expr_table: 1;     /* space has $EXPR$ */
1666
  unsigned int has_range_table: 1;    /* space has $RANGE$ */
1667
  unsigned int has_context_table: 1;  /* space has $SRC_CTXT$ */
1668
  unsigned int has_lines_table: 1;    /* space contains a $LINES$
1669
                                         subspace for line tables.  */
1670
  unsigned int has_lt_offset_map: 1;  /* space contains an lt_offset
1671
                                         subspace for line table mapping.  */
1672
  /* The following fields are the same as those in the PXDB_header in $DEBUG$ */
1673
  int           pd_entries;   /* # of entries in function look-up table */
1674
  int           fd_entries;   /* # of entries in file look-up table */
1675
  int           md_entries;   /* # of entries in module look-up table */
1676
  unsigned int  pxdbed : 1;   /* 1 => file has been preprocessed      */
1677
  unsigned int  bighdr : 1;   /* 1 => this header contains 'time' word */
1678
  unsigned int  sa_header : 1;/* 1 => created by SA version of pxdb */
1679
                              /*   used for version check in xdb */
1680
  unsigned int  inlined: 1;   /* one or more functions have been inlined */
1681
  unsigned int  spare : 28;
1682
  int           globals;      /* index into the DNTT where GNTT begins */
1683
  unsigned int  time;         /* modify time of file before being pxdbed */
1684
  int           pg_entries;   /* # of entries in label look-up table */
1685
  int           functions;    /* actual number of functions */
1686
  int           files;        /* actual number of files */
1687
  int           cd_entries;   /* # of entries in class look-up table */
1688
  int           aa_entries;   /* # of entries in addr alias look-up table */
1689
  int           oi_entries;   /* # of entries in object id look-up table */
1690
} DOC_info_PXDB_header;
1691
 
1692
/* Header version for the case that there is DOC info and the
1693
   executable has NOT been processed by pxdb.  */
1694
 
1695
typedef struct DOC_info_header_struct
1696
{
1697
  unsigned int xdb_header: 1;   /* bit set if this is post-3.1 xdb */
1698
  unsigned int doc_header: 1;     /* bit set if this is doc-style header*/
1699
  unsigned int version: 8;      /* version of debug/header
1700
                                   format. For 10.0 the value
1701
                                   will be 1. For "Davis" the value is 2.  */
1702
  unsigned int reserved_for_flags: 18; /* for future use; -- must be set to zero.  */
1703
  unsigned int has_range_table: 1;     /* space contains a $RANGE$ subspace for variable ranges.  */
1704
  unsigned int has_context_table: 1;   /* space contains a $CTXT$ subspace for context/inline table.  */
1705
  unsigned int has_lines_table: 1;     /* space contains a $LINES$ subspace for line tables. */
1706
  unsigned int has_lt_offset_map: 1;   /* space contains an lt_offset subspace for line table mapping.  */
1707
 
1708
  long   gntt_length;  /* same as old header */
1709
  long   lntt_length;  /* same as old header */
1710
  long   slt_length;   /* same as old header */
1711
  long   vt_length;    /* same as old header */
1712
  long   xt_length;    /* same as old header */
1713
  long   ctxt_length;  /* present only if version >= 2 */
1714
  long   range_length; /* present only if version >= 2 */
1715
  long   expr_length;  /* present only if version >= 2 */
1716
 
1717
} DOC_info_header;
1718
 
1719
typedef union GenericDebugHeader_union
1720
{
1721
   PXDB_header          no_doc;
1722
   DOC_info_PXDB_header doc;
1723
   XDB_header           no_pxdb_no_doc;
1724
   DOC_info_header      no_pxdb_doc;
1725
} GenericDebugHeader;
1726
 
1727
 
1728
/*  Procedure Descriptor:
1729
    An element of the procedure quick look-up table.  */
1730
 
1731
typedef struct quick_procedure
1732
{
1733
  long           isym;          /* 0-based index of first symbol
1734
                                   for procedure in $LNTT$,
1735
                                   i.e. the procedure itself.  */
1736
  CORE_ADDR      adrStart;      /* memory adr of start of proc  */
1737
  CORE_ADDR      adrEnd;        /* memory adr of end of proc    */
1738
  char          *sbAlias;       /* alias name of procedure      */
1739
  char          *sbProc;        /* real name of procedure       */
1740
  CORE_ADDR      adrBp;         /* address of entry breakpoint  */
1741
  CORE_ADDR      adrExitBp;     /* address of exit breakpoint   */
1742
  int            icd;           /* member of this class (index) */
1743
  unsigned int   ipd;           /* index of template for this   */
1744
                                /* function (index)           */
1745
  unsigned int   unused:    5;
1746
  unsigned int   no_lt_offset: 1;/* no entry in lt_offset table */
1747
  unsigned int   fTemplate: 1;  /* function template            */
1748
  unsigned int   fExpansion: 1; /* function expansion           */
1749
  unsigned int   linked   : 1;  /* linked with other expansions */
1750
  unsigned int   duplicate: 1;  /* clone of another procedure   */
1751
  unsigned int   overloaded:1;  /* overloaded function          */
1752
  unsigned int   member:    1;  /* class member function        */
1753
  unsigned int   constructor:1; /* constructor function         */
1754
  unsigned int   destructor:1;  /* destructor function          */
1755
  unsigned int   Static:    1;  /* static function              */
1756
  unsigned int   Virtual:   1;  /* virtual function             */
1757
  unsigned int   constant:  1;  /* constant function            */
1758
  unsigned int   pure:      1;  /* pure (virtual) function      */
1759
  unsigned int   language:  4;  /* procedure's language         */
1760
  unsigned int   inlined:   1;  /* function has been inlined    */
1761
  unsigned int   Operator:  1;  /* operator function            */
1762
  unsigned int   stub:      1;  /* bodyless function            */
1763
  unsigned int   optimize:  2;  /* optimization level           */
1764
  unsigned int   level:     5;  /* nesting level (top=0)        */
1765
} quick_procedure_entry, *quick_procedure_entry_ptr;
1766
 
1767
/*  Source File Descriptor:
1768
    An element of the source file quick look-up table.  */
1769
 
1770
typedef struct quick_source
1771
{
1772
  long           isym;          /* 0-based index in $LNTT$ of
1773
                                   first symbol for this file.     */
1774
  CORE_ADDR      adrStart;      /* mem adr of start of file's code */
1775
  CORE_ADDR      adrEnd;        /* mem adr of end of file's code   */
1776
  char          *sbFile;        /* name of source file             */
1777
  unsigned int   fHasDecl: 1;   /* do we have a .d file?           */
1778
  unsigned int   fWarned:  1;   /* have warned about age problems? */
1779
  unsigned int   fSrcfile: 1;   /* 0 => include 1=> source         */
1780
  unsigned short ilnMac;        /* lines in file (0 if don't know) */
1781
  int            ipd;           /* 0-based index of first procedure
1782
                                   in this file, in the quick
1783
                                   look-up table of procedures.    */
1784
  unsigned int  *rgLn;          /* line pointer array, if any      */
1785
} quick_file_entry, *quick_file_entry_ptr;
1786
 
1787
/*  Module Descriptor:
1788
    An element of the module quick reference table.  */
1789
 
1790
typedef struct quick_module
1791
{
1792
  long           isym;             /* 0-based index of first
1793
                                      symbol for module.        */
1794
  CORE_ADDR      adrStart;         /* adr of start of mod.      */
1795
  CORE_ADDR      adrEnd;           /* adr of end of mod.        */
1796
  char          *sbAlias;          /* alias name of module      */
1797
  char          *sbMod;            /* real name of module       */
1798
  unsigned int   imports:       1; /* module have any imports?  */
1799
  unsigned int   vars_in_front: 1; /* module globals in front?  */
1800
  unsigned int   vars_in_gaps:  1; /* module globals in gaps?   */
1801
  unsigned int   language:      4; /* type of language          */
1802
  unsigned int   unused      : 25;
1803
  unsigned int   unused2;          /* space for future stuff    */
1804
} quick_module_entry, *quick_module_entry_ptr;
1805
 
1806
/*  Auxiliary Procedure Descriptor:
1807
    An element of the auxiliary procedure quick look-up table.  */
1808
 
1809
typedef struct quick_aux_procedure
1810
{
1811
  long   isym_inln;     /* start on inline list for proc */
1812
  long   spare;
1813
} quick_aux_procedure_entry, *quick_aux_procedure_entry_ptr;
1814
 
1815
/*  Paragraph Descriptor:
1816
    An element of the paragraph quick look-up table.  */
1817
 
1818
typedef struct quick_paragraph
1819
{
1820
  long             isym;       /* first symbol for label (index)  */
1821
  CORE_ADDR        adrStart;   /* memory adr of start of label    */
1822
  CORE_ADDR        adrEnd;     /* memory adr of end of label      */
1823
  char            *sbLab;      /* name of label                   */
1824
  unsigned int     inst;       /* Used in xdb to store inst @ bp  */
1825
  unsigned int     sect:    1; /* true = section, false = parag.  */
1826
  unsigned int     unused: 31; /* future use                      */
1827
} quick_paragraph_entry, *quick_paragraph_entry_ptr;
1828
 
1829
/* Class Descriptor:
1830
   An element of the class quick look-up table.  */
1831
 
1832
typedef struct quick_class
1833
{
1834
  char           *sbClass;      /* name of class                */
1835
  long            isym;         /* class symbol (tag)           */
1836
  unsigned int    type : 2;     /* 0=class, 1=union, 2=struct   */
1837
  unsigned int    fTemplate : 1;/* class template               */
1838
  unsigned int    expansion : 1;/* template expansion           */
1839
  unsigned int    unused    :28;
1840
  sltpointer      lowscope;     /* beginning of defined scope   */
1841
  sltpointer      hiscope;      /* end of defined scope         */
1842
} quick_class_entry, *quick_class_entry_ptr;
1843
 
1844
/* Address Alias Entry
1845
   An element of the address alias quick look-up table.  */
1846
 
1847
typedef struct quick_alias
1848
{
1849
  CORE_ADDR     low;
1850
  CORE_ADDR     high;
1851
  int           index;
1852
  unsigned int  unused : 31;
1853
  unsigned int  alternate : 1;  /* alternate unnamed aliases?   */
1854
} quick_alias_entry, *quick_alias_entry_ptr;
1855
 
1856
/* Object Identification Entry
1857
   An element of the object identification quick look-up table.  */
1858
 
1859
typedef struct quick_obj_ID
1860
{
1861
  CORE_ADDR    obj_ident;       /* class identifier         */
1862
  long         isym;            /* class symbol             */
1863
  long         offset;          /* offset to object start   */
1864
} quick_obj_ID_entry, *quick_obj_ID_entry_ptr;
1865
 
1866
#endif /* HP_SYMTAB_INCLUDED */

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