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1 /* ECOFF object file format.
2 Copyright (C) 1993 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
5 good deal of it comes directly from mips-tfile.c, by Michael
6 Meissner <meissner@osf.org>.
7
8 This file is part of GAS.
9
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24 #include "as.h"
25 #include "coff/internal.h"
26 #include "coff/mips.h"
27 #include "coff/sym.h"
28 #include "coff/symconst.h"
29 #include "coff/ecoff-ext.h"
30 #include "aout/stab_gnu.h"
31 #include "../bfd/libecoff.h"
32
33 #include <ctype.h>
34
35 /* Why isn't this in coff/sym.h? */
36 #define ST_RFDESCAPE 0xfff
37
38 /* Why isn't this in listing.h? */
39 extern int listing;
40
41 /* The ECOFF file format uses COFF style sections, but with a unique
42 debugging format. We just build generic BFD sections since BFD
43 knows how to write them out. The debugging format, however, we
44 must construct here; all BFD knows at the moment is to write it out
45 as a large block of data.
46
47 We support both COFF style debugging and stabs debugging (the stabs
48 symbols are encapsulated in COFF symbols). This should let us
49 handle anything the compiler might throw at us. Parsing the COFF
50 and stabs debugging information is similar to work done by COFF and
51 a.out targets, but since the result is completely different the
52 code is not shared. */
53
54 /* Here is a brief description of the MIPS ECOFF symbol table, by
55 Michael Meissner. The MIPS symbol table has the following pieces:
56
57 Symbolic Header
58 |
59 +-- Auxiliary Symbols
60 |
61 +-- Dense number table
62 |
63 +-- Optimizer Symbols
64 |
65 +-- External Strings
66 |
67 +-- External Symbols
68 |
69 +-- Relative file descriptors
70 |
71 +-- File table
72 |
73 +-- Procedure table
74 |
75 +-- Line number table
76 |
77 +-- Local Strings
78 |
79 +-- Local Symbols
80
81 The symbolic header points to each of the other tables, and also
82 contains the number of entries. It also contains a magic number
83 and MIPS compiler version number, such as 2.0.
84
85 The auxiliary table is a series of 32 bit integers, that are
86 referenced as needed from the local symbol table. Unlike standard
87 COFF, the aux. information does not follow the symbol that uses
88 it, but rather is a separate table. In theory, this would allow
89 the MIPS compilers to collapse duplicate aux. entries, but I've not
90 noticed this happening with the 1.31 compiler suite. The different
91 types of aux. entries are:
92
93 1) dnLow: Low bound on array dimension.
94
95 2) dnHigh: High bound on array dimension.
96
97 3) isym: Index to the local symbol which is the start of the
98 function for the end of function first aux. entry.
99
100 4) width: Width of structures and bitfields.
101
102 5) count: Count of ranges for variant part.
103
104 6) rndx: A relative index into the symbol table. The relative
105 index field has two parts: rfd which is a pointer into the
106 relative file index table or ST_RFDESCAPE which says the next
107 aux. entry is the file number, and index: which is the pointer
108 into the local symbol within a given file table. This is for
109 things like references to types defined in another file.
110
111 7) Type information: This is like the COFF type bits, except it
112 is 32 bits instead of 16; they still have room to add new
113 basic types; and they can handle more than 6 levels of array,
114 pointer, function, etc. Each type information field contains
115 the following structure members:
116
117 a) fBitfield: a bit that says this is a bitfield, and the
118 size in bits follows as the next aux. entry.
119
120 b) continued: a bit that says the next aux. entry is a
121 continuation of the current type information (in case
122 there are more than 6 levels of array/ptr/function).
123
124 c) bt: an integer containing the base type before adding
125 array, pointer, function, etc. qualifiers. The
126 current base types that I have documentation for are:
127
128 btNil -- undefined
129 btAdr -- address - integer same size as ptr
130 btChar -- character
131 btUChar -- unsigned character
132 btShort -- short
133 btUShort -- unsigned short
134 btInt -- int
135 btUInt -- unsigned int
136 btLong -- long
137 btULong -- unsigned long
138 btFloat -- float (real)
139 btDouble -- Double (real)
140 btStruct -- Structure (Record)
141 btUnion -- Union (variant)
142 btEnum -- Enumerated
143 btTypedef -- defined via a typedef isymRef
144 btRange -- subrange of int
145 btSet -- pascal sets
146 btComplex -- fortran complex
147 btDComplex -- fortran double complex
148 btIndirect -- forward or unnamed typedef
149 btFixedDec -- Fixed Decimal
150 btFloatDec -- Float Decimal
151 btString -- Varying Length Character String
152 btBit -- Aligned Bit String
153 btPicture -- Picture
154 btVoid -- Void (MIPS cc revision >= 2.00)
155
156 d) tq0 - tq5: type qualifier fields as needed. The
157 current type qualifier fields I have documentation for
158 are:
159
160 tqNil -- no more qualifiers
161 tqPtr -- pointer
162 tqProc -- procedure
163 tqArray -- array
164 tqFar -- 8086 far pointers
165 tqVol -- volatile
166
167
168 The dense number table is used in the front ends, and disappears by
169 the time the .o is created.
170
171 With the 1.31 compiler suite, the optimization symbols don't seem
172 to be used as far as I can tell.
173
174 The linker is the first entity that creates the relative file
175 descriptor table, and I believe it is used so that the individual
176 file table pointers don't have to be rewritten when the objects are
177 merged together into the program file.
178
179 Unlike COFF, the basic symbol & string tables are split into
180 external and local symbols/strings. The relocation information
181 only goes off of the external symbol table, and the debug
182 information only goes off of the internal symbol table. The
183 external symbols can have links to an appropriate file index and
184 symbol within the file to give it the appropriate type information.
185 Because of this, the external symbols are actually larger than the
186 internal symbols (to contain the link information), and contain the
187 local symbol structure as a member, though this member is not the
188 first member of the external symbol structure (!). I suspect this
189 split is to make strip easier to deal with.
190
191 Each file table has offsets for where the line numbers, local
192 strings, local symbols, and procedure table starts from within the
193 global tables, and the indexs are reset to 0 for each of those
194 tables for the file.
195
196 The procedure table contains the binary equivalents of the .ent
197 (start of the function address), .frame (what register is the
198 virtual frame pointer, constant offset from the register to obtain
199 the VFP, and what register holds the return address), .mask/.fmask
200 (bitmask of saved registers, and where the first register is stored
201 relative to the VFP) assembler directives. It also contains the
202 low and high bounds of the line numbers if debugging is turned on.
203
204 The line number table is a compressed form of the normal COFF line
205 table. Each line number entry is either 1 or 3 bytes long, and
206 contains a signed delta from the previous line, and an unsigned
207 count of the number of instructions this statement takes.
208
209 The local symbol table contains the following fields:
210
211 1) iss: index to the local string table giving the name of the
212 symbol.
213
214 2) value: value of the symbol (address, register number, etc.).
215
216 3) st: symbol type. The current symbol types are:
217
218 stNil -- Nuthin' special
219 stGlobal -- external symbol
220 stStatic -- static
221 stParam -- procedure argument
222 stLocal -- local variable
223 stLabel -- label
224 stProc -- External Procedure
225 stBlock -- beginning of block
226 stEnd -- end (of anything)
227 stMember -- member (of anything)
228 stTypedef -- type definition
229 stFile -- file name
230 stRegReloc -- register relocation
231 stForward -- forwarding address
232 stStaticProc -- Static procedure
233 stConstant -- const
234
235 4) sc: storage class. The current storage classes are:
236
237 scText -- text symbol
238 scData -- initialized data symbol
239 scBss -- un-initialized data symbol
240 scRegister -- value of symbol is register number
241 scAbs -- value of symbol is absolute
242 scUndefined -- who knows?
243 scCdbLocal -- variable's value is IN se->va.??
244 scBits -- this is a bit field
245 scCdbSystem -- value is IN debugger's address space
246 scRegImage -- register value saved on stack
247 scInfo -- symbol contains debugger information
248 scUserStruct -- addr in struct user for current process
249 scSData -- load time only small data
250 scSBss -- load time only small common
251 scRData -- load time only read only data
252 scVar -- Var parameter (fortranpascal)
253 scCommon -- common variable
254 scSCommon -- small common
255 scVarRegister -- Var parameter in a register
256 scVariant -- Variant record
257 scSUndefined -- small undefined(external) data
258 scInit -- .init section symbol
259
260 5) index: pointer to a local symbol or aux. entry.
261
262
263
264 For the following program:
265
266 #include <stdio.h>
267
268 main(){
269 printf("Hello World!\n");
270 return 0;
271 }
272
273 Mips-tdump produces the following information:
274
275 Global file header:
276 magic number 0x162
277 # sections 2
278 timestamp 645311799, Wed Jun 13 17:16:39 1990
279 symbolic header offset 284
280 symbolic header size 96
281 optional header 56
282 flags 0x0
283
284 Symbolic header, magic number = 0x7009, vstamp = 1.31:
285
286 Info Offset Number Bytes
287 ==== ====== ====== =====
288
289 Line numbers 380 4 4 [13]
290 Dense numbers 0 0 0
291 Procedures Tables 384 1 52
292 Local Symbols 436 16 192
293 Optimization Symbols 0 0 0
294 Auxiliary Symbols 628 39 156
295 Local Strings 784 80 80
296 External Strings 864 144 144
297 File Tables 1008 2 144
298 Relative Files 0 0 0
299 External Symbols 1152 20 320
300
301 File #0, "hello2.c"
302
303 Name index = 1 Readin = No
304 Merge = No Endian = LITTLE
305 Debug level = G2 Language = C
306 Adr = 0x00000000
307
308 Info Start Number Size Offset
309 ==== ===== ====== ==== ======
310 Local strings 0 15 15 784
311 Local symbols 0 6 72 436
312 Line numbers 0 13 13 380
313 Optimization symbols 0 0 0 0
314 Procedures 0 1 52 384
315 Auxiliary symbols 0 14 56 628
316 Relative Files 0 0 0 0
317
318 There are 6 local symbols, starting at 436
319
320 Symbol# 0: "hello2.c"
321 End+1 symbol = 6
322 String index = 1
323 Storage class = Text Index = 6
324 Symbol type = File Value = 0
325
326 Symbol# 1: "main"
327 End+1 symbol = 5
328 Type = int
329 String index = 10
330 Storage class = Text Index = 12
331 Symbol type = Proc Value = 0
332
333 Symbol# 2: ""
334 End+1 symbol = 4
335 String index = 0
336 Storage class = Text Index = 4
337 Symbol type = Block Value = 8
338
339 Symbol# 3: ""
340 First symbol = 2
341 String index = 0
342 Storage class = Text Index = 2
343 Symbol type = End Value = 28
344
345 Symbol# 4: "main"
346 First symbol = 1
347 String index = 10
348 Storage class = Text Index = 1
349 Symbol type = End Value = 52
350
351 Symbol# 5: "hello2.c"
352 First symbol = 0
353 String index = 1
354 Storage class = Text Index = 0
355 Symbol type = End Value = 0
356
357 There are 14 auxiliary table entries, starting at 628.
358
359 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
360 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
361 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
362 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
363 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
364 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
365 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
366 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
367 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
368 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
369 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
370 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
371 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
372 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
373
374 There are 1 procedure descriptor entries, starting at 0.
375
376 Procedure descriptor 0:
377 Name index = 10 Name = "main"
378 .mask 0x80000000,-4 .fmask 0x00000000,0
379 .frame $29,24,$31
380 Opt. start = -1 Symbols start = 1
381 First line # = 3 Last line # = 6
382 Line Offset = 0 Address = 0x00000000
383
384 There are 4 bytes holding line numbers, starting at 380.
385 Line 3, delta 0, count 2
386 Line 4, delta 1, count 3
387 Line 5, delta 1, count 2
388 Line 6, delta 1, count 6
389
390 File #1, "/usr/include/stdio.h"
391
392 Name index = 1 Readin = No
393 Merge = Yes Endian = LITTLE
394 Debug level = G2 Language = C
395 Adr = 0x00000000
396
397 Info Start Number Size Offset
398 ==== ===== ====== ==== ======
399 Local strings 15 65 65 799
400 Local symbols 6 10 120 508
401 Line numbers 0 0 0 380
402 Optimization symbols 0 0 0 0
403 Procedures 1 0 0 436
404 Auxiliary symbols 14 25 100 684
405 Relative Files 0 0 0 0
406
407 There are 10 local symbols, starting at 442
408
409 Symbol# 0: "/usr/include/stdio.h"
410 End+1 symbol = 10
411 String index = 1
412 Storage class = Text Index = 10
413 Symbol type = File Value = 0
414
415 Symbol# 1: "_iobuf"
416 End+1 symbol = 9
417 String index = 22
418 Storage class = Info Index = 9
419 Symbol type = Block Value = 20
420
421 Symbol# 2: "_cnt"
422 Type = int
423 String index = 29
424 Storage class = Info Index = 4
425 Symbol type = Member Value = 0
426
427 Symbol# 3: "_ptr"
428 Type = ptr to char
429 String index = 34
430 Storage class = Info Index = 15
431 Symbol type = Member Value = 32
432
433 Symbol# 4: "_base"
434 Type = ptr to char
435 String index = 39
436 Storage class = Info Index = 16
437 Symbol type = Member Value = 64
438
439 Symbol# 5: "_bufsiz"
440 Type = int
441 String index = 45
442 Storage class = Info Index = 4
443 Symbol type = Member Value = 96
444
445 Symbol# 6: "_flag"
446 Type = short
447 String index = 53
448 Storage class = Info Index = 3
449 Symbol type = Member Value = 128
450
451 Symbol# 7: "_file"
452 Type = char
453 String index = 59
454 Storage class = Info Index = 2
455 Symbol type = Member Value = 144
456
457 Symbol# 8: ""
458 First symbol = 1
459 String index = 0
460 Storage class = Info Index = 1
461 Symbol type = End Value = 0
462
463 Symbol# 9: "/usr/include/stdio.h"
464 First symbol = 0
465 String index = 1
466 Storage class = Text Index = 0
467 Symbol type = End Value = 0
468
469 There are 25 auxiliary table entries, starting at 642.
470
471 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
472 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
473 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
474 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
475 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
476 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
477 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
478 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
479 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
481 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
482 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
493 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
494 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
495 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
496
497 There are 0 procedure descriptor entries, starting at 1.
498
499 There are 20 external symbols, starting at 1152
500
501 Symbol# 0: "_iob"
502 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
503 String index = 0 Ifd = 1
504 Storage class = Nil Index = 17
505 Symbol type = Global Value = 60
506
507 Symbol# 1: "fopen"
508 String index = 5 Ifd = 1
509 Storage class = Nil Index = 1048575
510 Symbol type = Proc Value = 0
511
512 Symbol# 2: "fdopen"
513 String index = 11 Ifd = 1
514 Storage class = Nil Index = 1048575
515 Symbol type = Proc Value = 0
516
517 Symbol# 3: "freopen"
518 String index = 18 Ifd = 1
519 Storage class = Nil Index = 1048575
520 Symbol type = Proc Value = 0
521
522 Symbol# 4: "popen"
523 String index = 26 Ifd = 1
524 Storage class = Nil Index = 1048575
525 Symbol type = Proc Value = 0
526
527 Symbol# 5: "tmpfile"
528 String index = 32 Ifd = 1
529 Storage class = Nil Index = 1048575
530 Symbol type = Proc Value = 0
531
532 Symbol# 6: "ftell"
533 String index = 40 Ifd = 1
534 Storage class = Nil Index = 1048575
535 Symbol type = Proc Value = 0
536
537 Symbol# 7: "rewind"
538 String index = 46 Ifd = 1
539 Storage class = Nil Index = 1048575
540 Symbol type = Proc Value = 0
541
542 Symbol# 8: "setbuf"
543 String index = 53 Ifd = 1
544 Storage class = Nil Index = 1048575
545 Symbol type = Proc Value = 0
546
547 Symbol# 9: "setbuffer"
548 String index = 60 Ifd = 1
549 Storage class = Nil Index = 1048575
550 Symbol type = Proc Value = 0
551
552 Symbol# 10: "setlinebuf"
553 String index = 70 Ifd = 1
554 Storage class = Nil Index = 1048575
555 Symbol type = Proc Value = 0
556
557 Symbol# 11: "fgets"
558 String index = 81 Ifd = 1
559 Storage class = Nil Index = 1048575
560 Symbol type = Proc Value = 0
561
562 Symbol# 12: "gets"
563 String index = 87 Ifd = 1
564 Storage class = Nil Index = 1048575
565 Symbol type = Proc Value = 0
566
567 Symbol# 13: "ctermid"
568 String index = 92 Ifd = 1
569 Storage class = Nil Index = 1048575
570 Symbol type = Proc Value = 0
571
572 Symbol# 14: "cuserid"
573 String index = 100 Ifd = 1
574 Storage class = Nil Index = 1048575
575 Symbol type = Proc Value = 0
576
577 Symbol# 15: "tempnam"
578 String index = 108 Ifd = 1
579 Storage class = Nil Index = 1048575
580 Symbol type = Proc Value = 0
581
582 Symbol# 16: "tmpnam"
583 String index = 116 Ifd = 1
584 Storage class = Nil Index = 1048575
585 Symbol type = Proc Value = 0
586
587 Symbol# 17: "sprintf"
588 String index = 123 Ifd = 1
589 Storage class = Nil Index = 1048575
590 Symbol type = Proc Value = 0
591
592 Symbol# 18: "main"
593 Type = int
594 String index = 131 Ifd = 0
595 Storage class = Text Index = 1
596 Symbol type = Proc Value = 0
597
598 Symbol# 19: "printf"
599 String index = 136 Ifd = 0
600 Storage class = Undefined Index = 1048575
601 Symbol type = Proc Value = 0
602
603 The following auxiliary table entries were unused:
604
605 #0 0 0x00000000 void
606 #2 8 0x00000008 char
607 #3 16 0x00000010 short
608 #4 24 0x00000018 int
609 #5 32 0x00000020 long
610 #6 40 0x00000028 float
611 #7 44 0x0000002c double
612 #8 12 0x0000000c unsigned char
613 #9 20 0x00000014 unsigned short
614 #10 28 0x0000001c unsigned int
615 #11 36 0x00000024 unsigned long
616 #14 0 0x00000000 void
617 #15 24 0x00000018 int
618 #19 32 0x00000020 long
619 #20 40 0x00000028 float
620 #21 44 0x0000002c double
621 #22 12 0x0000000c unsigned char
622 #23 20 0x00000014 unsigned short
623 #24 28 0x0000001c unsigned int
624 #25 36 0x00000024 unsigned long
625 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
626 \f
627 */
628 /* Redefinition of of storage classes as an enumeration for better
629 debugging. */
630
631 typedef enum sc {
632 sc_Nil = scNil, /* no storage class */
633 sc_Text = scText, /* text symbol */
634 sc_Data = scData, /* initialized data symbol */
635 sc_Bss = scBss, /* un-initialized data symbol */
636 sc_Register = scRegister, /* value of symbol is register number */
637 sc_Abs = scAbs, /* value of symbol is absolute */
638 sc_Undefined = scUndefined, /* who knows? */
639 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
640 sc_Bits = scBits, /* this is a bit field */
641 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
642 sc_RegImage = scRegImage, /* register value saved on stack */
643 sc_Info = scInfo, /* symbol contains debugger information */
644 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
645 sc_SData = scSData, /* load time only small data */
646 sc_SBss = scSBss, /* load time only small common */
647 sc_RData = scRData, /* load time only read only data */
648 sc_Var = scVar, /* Var parameter (fortran,pascal) */
649 sc_Common = scCommon, /* common variable */
650 sc_SCommon = scSCommon, /* small common */
651 sc_VarRegister = scVarRegister, /* Var parameter in a register */
652 sc_Variant = scVariant, /* Variant record */
653 sc_SUndefined = scSUndefined, /* small undefined(external) data */
654 sc_Init = scInit, /* .init section symbol */
655 sc_Max = scMax /* Max storage class+1 */
656 } sc_t;
657
658 /* Redefinition of symbol type. */
659
660 typedef enum st {
661 st_Nil = stNil, /* Nuthin' special */
662 st_Global = stGlobal, /* external symbol */
663 st_Static = stStatic, /* static */
664 st_Param = stParam, /* procedure argument */
665 st_Local = stLocal, /* local variable */
666 st_Label = stLabel, /* label */
667 st_Proc = stProc, /* " " Procedure */
668 st_Block = stBlock, /* beginning of block */
669 st_End = stEnd, /* end (of anything) */
670 st_Member = stMember, /* member (of anything - struct/union/enum */
671 st_Typedef = stTypedef, /* type definition */
672 st_File = stFile, /* file name */
673 st_RegReloc = stRegReloc, /* register relocation */
674 st_Forward = stForward, /* forwarding address */
675 st_StaticProc = stStaticProc, /* load time only static procs */
676 st_Constant = stConstant, /* const */
677 st_Str = stStr, /* string */
678 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
679 st_Expr = stExpr, /* 2+2 vs. 4 */
680 st_Type = stType, /* post-coercion SER */
681 st_Max = stMax /* max type+1 */
682 } st_t;
683
684 /* Redefinition of type qualifiers. */
685
686 typedef enum tq {
687 tq_Nil = tqNil, /* bt is what you see */
688 tq_Ptr = tqPtr, /* pointer */
689 tq_Proc = tqProc, /* procedure */
690 tq_Array = tqArray, /* duh */
691 tq_Far = tqFar, /* longer addressing - 8086/8 land */
692 tq_Vol = tqVol, /* volatile */
693 tq_Max = tqMax /* Max type qualifier+1 */
694 } tq_t;
695
696 /* Redefinition of basic types. */
697
698 typedef enum bt {
699 bt_Nil = btNil, /* undefined */
700 bt_Adr = btAdr, /* address - integer same size as pointer */
701 bt_Char = btChar, /* character */
702 bt_UChar = btUChar, /* unsigned character */
703 bt_Short = btShort, /* short */
704 bt_UShort = btUShort, /* unsigned short */
705 bt_Int = btInt, /* int */
706 bt_UInt = btUInt, /* unsigned int */
707 bt_Long = btLong, /* long */
708 bt_ULong = btULong, /* unsigned long */
709 bt_Float = btFloat, /* float (real) */
710 bt_Double = btDouble, /* Double (real) */
711 bt_Struct = btStruct, /* Structure (Record) */
712 bt_Union = btUnion, /* Union (variant) */
713 bt_Enum = btEnum, /* Enumerated */
714 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
715 bt_Range = btRange, /* subrange of int */
716 bt_Set = btSet, /* pascal sets */
717 bt_Complex = btComplex, /* fortran complex */
718 bt_DComplex = btDComplex, /* fortran double complex */
719 bt_Indirect = btIndirect, /* forward or unnamed typedef */
720 bt_FixedDec = btFixedDec, /* Fixed Decimal */
721 bt_FloatDec = btFloatDec, /* Float Decimal */
722 bt_String = btString, /* Varying Length Character String */
723 bt_Bit = btBit, /* Aligned Bit String */
724 bt_Picture = btPicture, /* Picture */
725 bt_Void = btVoid, /* Void */
726 bt_Max = btMax /* Max basic type+1 */
727 } bt_t;
728
729 #define N_TQ itqMax
730
731 /* States for whether to hash type or not. */
732 typedef enum hash_state {
733 hash_no = 0, /* don't hash type */
734 hash_yes = 1, /* ok to hash type, or use previous hash */
735 hash_record = 2 /* ok to record hash, but don't use prev. */
736 } hash_state_t;
737
738 /* Types of different sized allocation requests. */
739 enum alloc_type {
740 alloc_type_none, /* dummy value */
741 alloc_type_scope, /* nested scopes linked list */
742 alloc_type_vlinks, /* glue linking pages in varray */
743 alloc_type_shash, /* string hash element */
744 alloc_type_thash, /* type hash element */
745 alloc_type_tag, /* struct/union/tag element */
746 alloc_type_forward, /* element to hold unknown tag */
747 alloc_type_thead, /* head of type hash list */
748 alloc_type_varray, /* general varray allocation */
749 alloc_type_lineno, /* line number list */
750 alloc_type_last /* last+1 element for array bounds */
751 };
752
753 /* Types of auxiliary type information. */
754 enum aux_type {
755 aux_tir, /* TIR type information */
756 aux_rndx, /* relative index into symbol table */
757 aux_dnLow, /* low dimension */
758 aux_dnHigh, /* high dimension */
759 aux_isym, /* symbol table index (end of proc) */
760 aux_iss, /* index into string space (not used) */
761 aux_width, /* width for non-default sized struc fields */
762 aux_count /* count of ranges for variant arm */
763 };
764 \f
765 /* Structures to provide n-number of virtual arrays, each of which can
766 grow linearly, and which are written in the object file as
767 sequential pages. On systems with a BSD malloc, the
768 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
769 malloc adds it's overhead, and rounds up to the next power of 2.
770 Pages are linked together via a linked list.
771
772 If PAGE_SIZE is > 4096, the string length in the shash_t structure
773 can't be represented (assuming there are strings > 4096 bytes). */
774
775 #ifndef PAGE_SIZE
776 #define PAGE_SIZE 4096 /* size of varray pages */
777 #endif
778
779 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
780
781
782 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
783 #define MAX_CLUSTER_PAGES 63
784 #endif
785
786
787 /* Linked list connecting separate page allocations. */
788 typedef struct vlinks {
789 struct vlinks *prev; /* previous set of pages */
790 struct vlinks *next; /* next set of pages */
791 union page *datum; /* start of page */
792 unsigned long start_index; /* starting index # of page */
793 } vlinks_t;
794
795
796 /* Virtual array header. */
797 typedef struct varray {
798 vlinks_t *first; /* first page link */
799 vlinks_t *last; /* last page link */
800 unsigned long num_allocated; /* # objects allocated */
801 unsigned short object_size; /* size in bytes of each object */
802 unsigned short objects_per_page; /* # objects that can fit on a page */
803 unsigned short objects_last_page; /* # objects allocated on last page */
804 } varray_t;
805
806 #ifndef MALLOC_CHECK
807 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
808 #else
809 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
810 #endif
811
812 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
813 (vlinks_t *)0, /* first */ \
814 (vlinks_t *)0, /* last */ \
815 0, /* num_allocated */ \
816 sizeof (type), /* object_size */ \
817 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
818 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
819 }
820
821
822 /* Master type for indexes within the symbol table. */
823 typedef unsigned long symint_t;
824
825
826 /* Linked list support for nested scopes (file, block, structure, etc.). */
827 typedef struct scope {
828 struct scope *prev; /* previous scope level */
829 struct scope *free; /* free list pointer */
830 struct localsym *lsym; /* pointer to local symbol node */
831 st_t type; /* type of the node */
832 } scope_t;
833
834
835 /* For a local symbol we store a gas symbol as well as the debugging
836 information we generate. The gas symbol will be NULL if this is
837 only a debugging symbol. */
838 typedef struct localsym {
839 const char *name; /* symbol name */
840 symbolS *as_sym; /* symbol as seen by gas */
841 struct efdr *file_ptr; /* file pointer */
842 struct ecoff_proc *proc_ptr; /* proc pointer */
843 struct localsym *begin_ptr; /* symbol at start of block */
844 struct ecoff_aux *index_ptr; /* index value to be filled in */
845 struct forward *forward_ref; /* forward references to this symbol */
846 long sym_index; /* final symbol index */
847 SYMR ecoff_sym; /* ECOFF debugging symbol */
848 } localsym_t;
849
850
851 /* For aux information we keep the type and the data. */
852 typedef struct ecoff_aux {
853 enum aux_type type; /* aux type */
854 AUXU data; /* aux data */
855 } aux_t;
856
857 /* For a procedure we store the gas symbol as well as the PDR
858 debugging information. */
859 typedef struct ecoff_proc {
860 localsym_t *sym; /* associated symbol */
861 PDR pdr; /* ECOFF debugging info */
862 } proc_t;
863
864 /* Number of proc_t structures allocated. */
865 static unsigned long proc_cnt;
866
867
868 /* Forward reference list for tags referenced, but not yet defined. */
869 typedef struct forward {
870 struct forward *next; /* next forward reference */
871 struct forward *free; /* free list pointer */
872 aux_t *ifd_ptr; /* pointer to store file index */
873 aux_t *index_ptr; /* pointer to store symbol index */
874 } forward_t;
875
876
877 /* Linked list support for tags. The first tag in the list is always
878 the current tag for that block. */
879 typedef struct tag {
880 struct tag *free; /* free list pointer */
881 struct shash *hash_ptr; /* pointer to the hash table head */
882 struct tag *same_name; /* tag with same name in outer scope */
883 struct tag *same_block; /* next tag defined in the same block. */
884 struct forward *forward_ref; /* list of forward references */
885 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
886 symint_t ifd; /* file # tag defined in */
887 localsym_t *sym; /* file's local symbols */
888 } tag_t;
889
890
891 /* Head of a block's linked list of tags. */
892 typedef struct thead {
893 struct thead *prev; /* previous block */
894 struct thead *free; /* free list pointer */
895 struct tag *first_tag; /* first tag in block defined */
896 } thead_t;
897
898
899 /* Union containing pointers to each the small structures which are freed up. */
900 typedef union small_free {
901 scope_t *f_scope; /* scope structure */
902 thead_t *f_thead; /* tag head structure */
903 tag_t *f_tag; /* tag element structure */
904 forward_t *f_forward; /* forward tag reference */
905 } small_free_t;
906
907
908 /* String hash table entry. */
909
910 typedef struct shash {
911 char *string; /* string we are hashing */
912 symint_t indx; /* index within string table */
913 EXTR *esym_ptr; /* global symbol pointer */
914 localsym_t *sym_ptr; /* local symbol pointer */
915 localsym_t *end_ptr; /* symbol pointer to end block */
916 tag_t *tag_ptr; /* tag pointer */
917 proc_t *proc_ptr; /* procedure descriptor pointer */
918 } shash_t;
919
920
921 /* Type hash table support. The size of the hash table must fit
922 within a page with the other extended file descriptor information.
923 Because unique types which are hashed are fewer in number than
924 strings, we use a smaller hash value. */
925
926 #define HASHBITS 30
927
928 #ifndef THASH_SIZE
929 #define THASH_SIZE 113
930 #endif
931
932 typedef struct thash {
933 struct thash *next; /* next hash value */
934 AUXU type; /* type we are hashing */
935 symint_t indx; /* index within string table */
936 } thash_t;
937
938
939 /* Extended file descriptor that contains all of the support necessary
940 to add things to each file separately. */
941 typedef struct efdr {
942 FDR fdr; /* File header to be written out */
943 FDR *orig_fdr; /* original file header */
944 char *name; /* filename */
945 symint_t void_type; /* aux. pointer to 'void' type */
946 symint_t int_type; /* aux. pointer to 'int' type */
947 scope_t *cur_scope; /* current nested scopes */
948 symint_t file_index; /* current file number */
949 int nested_scopes; /* # nested scopes */
950 varray_t strings; /* local strings */
951 varray_t symbols; /* local symbols */
952 varray_t procs; /* procedures */
953 varray_t aux_syms; /* auxiliary symbols */
954 struct efdr *next_file; /* next file descriptor */
955 /* string/type hash tables */
956 struct hash_control *str_hash; /* string hash table */
957 thash_t *thash_head[THASH_SIZE];
958 } efdr_t;
959
960 /* Pre-initialized extended file structure. */
961 static const efdr_t init_file =
962 {
963 { /* FDR structure */
964 0, /* adr: memory address of beginning of file */
965 0, /* rss: file name (of source, if known) */
966 0, /* issBase: file's string space */
967 0, /* cbSs: number of bytes in the ss */
968 0, /* isymBase: beginning of symbols */
969 0, /* csym: count file's of symbols */
970 0, /* ilineBase: file's line symbols */
971 0, /* cline: count of file's line symbols */
972 0, /* ioptBase: file's optimization entries */
973 0, /* copt: count of file's optimization entries */
974 0, /* ipdFirst: start of procedures for this file */
975 0, /* cpd: count of procedures for this file */
976 0, /* iauxBase: file's auxiliary entries */
977 0, /* caux: count of file's auxiliary entries */
978 0, /* rfdBase: index into the file indirect table */
979 0, /* crfd: count file indirect entries */
980 langC, /* lang: language for this file */
981 0, /* fMerge: whether this file can be merged */
982 0, /* fReadin: true if read in (not just created) */
983 #ifdef TARGET_BYTES_BIG_ENDIAN
984 1, /* fBigendian: if 1, compiled on big endian machine */
985 #else
986 0, /* fBigendian: if 1, compiled on big endian machine */
987 #endif
988 GLEVEL_2, /* glevel: level this file was compiled with */
989 0, /* reserved: reserved for future use */
990 0, /* cbLineOffset: byte offset from header for this file ln's */
991 0, /* cbLine: size of lines for this file */
992 },
993
994 (FDR *)0, /* orig_fdr: original file header pointer */
995 (char *)0, /* name: pointer to filename */
996 0, /* void_type: ptr to aux node for void type */
997 0, /* int_type: ptr to aux node for int type */
998 (scope_t *)0, /* cur_scope: current scope being processed */
999 0, /* file_index: current file # */
1000 0, /* nested_scopes: # nested scopes */
1001 INIT_VARRAY (char), /* strings: local string varray */
1002 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
1003 INIT_VARRAY (proc_t), /* procs: procedure varray */
1004 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1005
1006 (struct efdr *)0, /* next_file: next file structure */
1007
1008 (struct hash_control *)0, /* str_hash: string hash table */
1009 { 0 }, /* thash_head: type hash table */
1010 };
1011
1012
1013 static efdr_t *first_file; /* first file descriptor */
1014 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1015
1016
1017 /* Line number information is kept in a list until the assembly is
1018 finished. */
1019 typedef struct lineno_list {
1020 struct lineno_list *next; /* next element in list */
1021 efdr_t *file; /* file this line is in */
1022 proc_t *proc; /* procedure this line is in */
1023 fragS *frag; /* fragment this line number is in */
1024 unsigned long paddr; /* offset within fragment */
1025 long lineno; /* actual line number */
1026 } lineno_list_t;
1027
1028 static lineno_list_t *first_lineno;
1029 static lineno_list_t **last_lineno_ptr = &first_lineno;
1030
1031 /* Sometimes there will be some .loc statements before a .ent. We
1032 keep them in this list so that we can fill in the procedure pointer
1033 after we see the .ent. */
1034 static lineno_list_t *noproc_lineno;
1035
1036 /* Union of various things that are held in pages. */
1037 typedef union page {
1038 char byte [ PAGE_SIZE ];
1039 unsigned char ubyte [ PAGE_SIZE ];
1040 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1041 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1042 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1043 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1044 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1045 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1046 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1047 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1048 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1049 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1050 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1051 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1052 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1053 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1054 } page_t;
1055
1056
1057 /* Structure holding allocation information for small sized structures. */
1058 typedef struct alloc_info {
1059 char *alloc_name; /* name of this allocation type (must be first) */
1060 page_t *cur_page; /* current page being allocated from */
1061 small_free_t free_list; /* current free list if any */
1062 int unallocated; /* number of elements unallocated on page */
1063 int total_alloc; /* total number of allocations */
1064 int total_free; /* total number of frees */
1065 int total_pages; /* total number of pages allocated */
1066 } alloc_info_t;
1067
1068
1069 /* Type information collected together. */
1070 typedef struct type_info {
1071 bt_t basic_type; /* basic type */
1072 int orig_type; /* original COFF-based type */
1073 int num_tq; /* # type qualifiers */
1074 int num_dims; /* # dimensions */
1075 int num_sizes; /* # sizes */
1076 int extra_sizes; /* # extra sizes not tied with dims */
1077 tag_t * tag_ptr; /* tag pointer */
1078 int bitfield; /* symbol is a bitfield */
1079 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1080 symint_t dimensions [N_TQ]; /* dimensions for each array */
1081 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1082 struct/union/enum + bitfield size */
1083 } type_info_t;
1084
1085 /* Pre-initialized type_info struct. */
1086 static const type_info_t type_info_init = {
1087 bt_Nil, /* basic type */
1088 T_NULL, /* original COFF-based type */
1089 0, /* # type qualifiers */
1090 0, /* # dimensions */
1091 0, /* # sizes */
1092 0, /* sizes not tied with dims */
1093 NULL, /* ptr to tag */
1094 0, /* bitfield */
1095 { /* type qualifiers */
1096 tq_Nil,
1097 tq_Nil,
1098 tq_Nil,
1099 tq_Nil,
1100 tq_Nil,
1101 tq_Nil,
1102 },
1103 { /* dimensions */
1104 0,
1105 0,
1106 0,
1107 0,
1108 0,
1109 0
1110 },
1111 { /* sizes */
1112 0,
1113 0,
1114 0,
1115 0,
1116 0,
1117 0,
1118 0,
1119 0,
1120 },
1121 };
1122
1123 /* Global hash table for the tags table and global table for file
1124 descriptors. */
1125
1126 static varray_t file_desc = INIT_VARRAY (efdr_t);
1127
1128 static struct hash_control *tag_hash;
1129
1130 /* Static types for int and void. Also, remember the last function's
1131 type (which is set up when we encounter the declaration for the
1132 function, and used when the end block for the function is emitted. */
1133
1134 static type_info_t int_type_info;
1135 static type_info_t void_type_info;
1136 static type_info_t last_func_type_info;
1137 static symbolS *last_func_sym_value;
1138
1139
1140 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1141 really should use bt_Void, but this causes the current ecoff GDB to
1142 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1143 2.0) doesn't understand it, even though the compiler generates it.
1144 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1145 suite, but for now go with what works.
1146
1147 It would make sense for the .type and .scl directives to use the
1148 ECOFF numbers directly, rather than using the COFF numbers and
1149 mapping them. Unfortunately, this is historically what mips-tfile
1150 expects, and changing gcc now would be a considerable pain (the
1151 native compiler generates debugging information internally, rather
1152 than via the assembler, so it will never use .type or .scl). */
1153
1154 static const bt_t map_coff_types[] = {
1155 bt_Nil, /* T_NULL */
1156 bt_Nil, /* T_ARG */
1157 bt_Char, /* T_CHAR */
1158 bt_Short, /* T_SHORT */
1159 bt_Int, /* T_INT */
1160 bt_Long, /* T_LONG */
1161 bt_Float, /* T_FLOAT */
1162 bt_Double, /* T_DOUBLE */
1163 bt_Struct, /* T_STRUCT */
1164 bt_Union, /* T_UNION */
1165 bt_Enum, /* T_ENUM */
1166 bt_Enum, /* T_MOE */
1167 bt_UChar, /* T_UCHAR */
1168 bt_UShort, /* T_USHORT */
1169 bt_UInt, /* T_UINT */
1170 bt_ULong /* T_ULONG */
1171 };
1172
1173 /* Convert COFF storage class to ECOFF storage class. */
1174 static const sc_t map_coff_storage[] = {
1175 sc_Nil, /* 0: C_NULL */
1176 sc_Abs, /* 1: C_AUTO auto var */
1177 sc_Undefined, /* 2: C_EXT external */
1178 sc_Data, /* 3: C_STAT static */
1179 sc_Register, /* 4: C_REG register */
1180 sc_Undefined, /* 5: C_EXTDEF ??? */
1181 sc_Text, /* 6: C_LABEL label */
1182 sc_Text, /* 7: C_ULABEL user label */
1183 sc_Info, /* 8: C_MOS member of struct */
1184 sc_Abs, /* 9: C_ARG argument */
1185 sc_Info, /* 10: C_STRTAG struct tag */
1186 sc_Info, /* 11: C_MOU member of union */
1187 sc_Info, /* 12: C_UNTAG union tag */
1188 sc_Info, /* 13: C_TPDEF typedef */
1189 sc_Data, /* 14: C_USTATIC ??? */
1190 sc_Info, /* 15: C_ENTAG enum tag */
1191 sc_Info, /* 16: C_MOE member of enum */
1192 sc_Register, /* 17: C_REGPARM register parameter */
1193 sc_Bits, /* 18; C_FIELD bitfield */
1194 sc_Nil, /* 19 */
1195 sc_Nil, /* 20 */
1196 sc_Nil, /* 21 */
1197 sc_Nil, /* 22 */
1198 sc_Nil, /* 23 */
1199 sc_Nil, /* 24 */
1200 sc_Nil, /* 25 */
1201 sc_Nil, /* 26 */
1202 sc_Nil, /* 27 */
1203 sc_Nil, /* 28 */
1204 sc_Nil, /* 29 */
1205 sc_Nil, /* 30 */
1206 sc_Nil, /* 31 */
1207 sc_Nil, /* 32 */
1208 sc_Nil, /* 33 */
1209 sc_Nil, /* 34 */
1210 sc_Nil, /* 35 */
1211 sc_Nil, /* 36 */
1212 sc_Nil, /* 37 */
1213 sc_Nil, /* 38 */
1214 sc_Nil, /* 39 */
1215 sc_Nil, /* 40 */
1216 sc_Nil, /* 41 */
1217 sc_Nil, /* 42 */
1218 sc_Nil, /* 43 */
1219 sc_Nil, /* 44 */
1220 sc_Nil, /* 45 */
1221 sc_Nil, /* 46 */
1222 sc_Nil, /* 47 */
1223 sc_Nil, /* 48 */
1224 sc_Nil, /* 49 */
1225 sc_Nil, /* 50 */
1226 sc_Nil, /* 51 */
1227 sc_Nil, /* 52 */
1228 sc_Nil, /* 53 */
1229 sc_Nil, /* 54 */
1230 sc_Nil, /* 55 */
1231 sc_Nil, /* 56 */
1232 sc_Nil, /* 57 */
1233 sc_Nil, /* 58 */
1234 sc_Nil, /* 59 */
1235 sc_Nil, /* 60 */
1236 sc_Nil, /* 61 */
1237 sc_Nil, /* 62 */
1238 sc_Nil, /* 63 */
1239 sc_Nil, /* 64 */
1240 sc_Nil, /* 65 */
1241 sc_Nil, /* 66 */
1242 sc_Nil, /* 67 */
1243 sc_Nil, /* 68 */
1244 sc_Nil, /* 69 */
1245 sc_Nil, /* 70 */
1246 sc_Nil, /* 71 */
1247 sc_Nil, /* 72 */
1248 sc_Nil, /* 73 */
1249 sc_Nil, /* 74 */
1250 sc_Nil, /* 75 */
1251 sc_Nil, /* 76 */
1252 sc_Nil, /* 77 */
1253 sc_Nil, /* 78 */
1254 sc_Nil, /* 79 */
1255 sc_Nil, /* 80 */
1256 sc_Nil, /* 81 */
1257 sc_Nil, /* 82 */
1258 sc_Nil, /* 83 */
1259 sc_Nil, /* 84 */
1260 sc_Nil, /* 85 */
1261 sc_Nil, /* 86 */
1262 sc_Nil, /* 87 */
1263 sc_Nil, /* 88 */
1264 sc_Nil, /* 89 */
1265 sc_Nil, /* 90 */
1266 sc_Nil, /* 91 */
1267 sc_Nil, /* 92 */
1268 sc_Nil, /* 93 */
1269 sc_Nil, /* 94 */
1270 sc_Nil, /* 95 */
1271 sc_Nil, /* 96 */
1272 sc_Nil, /* 97 */
1273 sc_Nil, /* 98 */
1274 sc_Nil, /* 99 */
1275 sc_Text, /* 100: C_BLOCK block start/end */
1276 sc_Text, /* 101: C_FCN function start/end */
1277 sc_Info, /* 102: C_EOS end of struct/union/enum */
1278 sc_Nil, /* 103: C_FILE file start */
1279 sc_Nil, /* 104: C_LINE line number */
1280 sc_Nil, /* 105: C_ALIAS combined type info */
1281 sc_Nil, /* 106: C_HIDDEN ??? */
1282 };
1283
1284 /* Convert COFF storage class to ECOFF symbol type. */
1285 static const st_t map_coff_sym_type[] = {
1286 st_Nil, /* 0: C_NULL */
1287 st_Local, /* 1: C_AUTO auto var */
1288 st_Global, /* 2: C_EXT external */
1289 st_Static, /* 3: C_STAT static */
1290 st_Local, /* 4: C_REG register */
1291 st_Global, /* 5: C_EXTDEF ??? */
1292 st_Label, /* 6: C_LABEL label */
1293 st_Label, /* 7: C_ULABEL user label */
1294 st_Member, /* 8: C_MOS member of struct */
1295 st_Param, /* 9: C_ARG argument */
1296 st_Block, /* 10: C_STRTAG struct tag */
1297 st_Member, /* 11: C_MOU member of union */
1298 st_Block, /* 12: C_UNTAG union tag */
1299 st_Typedef, /* 13: C_TPDEF typedef */
1300 st_Static, /* 14: C_USTATIC ??? */
1301 st_Block, /* 15: C_ENTAG enum tag */
1302 st_Member, /* 16: C_MOE member of enum */
1303 st_Param, /* 17: C_REGPARM register parameter */
1304 st_Member, /* 18; C_FIELD bitfield */
1305 st_Nil, /* 19 */
1306 st_Nil, /* 20 */
1307 st_Nil, /* 21 */
1308 st_Nil, /* 22 */
1309 st_Nil, /* 23 */
1310 st_Nil, /* 24 */
1311 st_Nil, /* 25 */
1312 st_Nil, /* 26 */
1313 st_Nil, /* 27 */
1314 st_Nil, /* 28 */
1315 st_Nil, /* 29 */
1316 st_Nil, /* 30 */
1317 st_Nil, /* 31 */
1318 st_Nil, /* 32 */
1319 st_Nil, /* 33 */
1320 st_Nil, /* 34 */
1321 st_Nil, /* 35 */
1322 st_Nil, /* 36 */
1323 st_Nil, /* 37 */
1324 st_Nil, /* 38 */
1325 st_Nil, /* 39 */
1326 st_Nil, /* 40 */
1327 st_Nil, /* 41 */
1328 st_Nil, /* 42 */
1329 st_Nil, /* 43 */
1330 st_Nil, /* 44 */
1331 st_Nil, /* 45 */
1332 st_Nil, /* 46 */
1333 st_Nil, /* 47 */
1334 st_Nil, /* 48 */
1335 st_Nil, /* 49 */
1336 st_Nil, /* 50 */
1337 st_Nil, /* 51 */
1338 st_Nil, /* 52 */
1339 st_Nil, /* 53 */
1340 st_Nil, /* 54 */
1341 st_Nil, /* 55 */
1342 st_Nil, /* 56 */
1343 st_Nil, /* 57 */
1344 st_Nil, /* 58 */
1345 st_Nil, /* 59 */
1346 st_Nil, /* 60 */
1347 st_Nil, /* 61 */
1348 st_Nil, /* 62 */
1349 st_Nil, /* 63 */
1350 st_Nil, /* 64 */
1351 st_Nil, /* 65 */
1352 st_Nil, /* 66 */
1353 st_Nil, /* 67 */
1354 st_Nil, /* 68 */
1355 st_Nil, /* 69 */
1356 st_Nil, /* 70 */
1357 st_Nil, /* 71 */
1358 st_Nil, /* 72 */
1359 st_Nil, /* 73 */
1360 st_Nil, /* 74 */
1361 st_Nil, /* 75 */
1362 st_Nil, /* 76 */
1363 st_Nil, /* 77 */
1364 st_Nil, /* 78 */
1365 st_Nil, /* 79 */
1366 st_Nil, /* 80 */
1367 st_Nil, /* 81 */
1368 st_Nil, /* 82 */
1369 st_Nil, /* 83 */
1370 st_Nil, /* 84 */
1371 st_Nil, /* 85 */
1372 st_Nil, /* 86 */
1373 st_Nil, /* 87 */
1374 st_Nil, /* 88 */
1375 st_Nil, /* 89 */
1376 st_Nil, /* 90 */
1377 st_Nil, /* 91 */
1378 st_Nil, /* 92 */
1379 st_Nil, /* 93 */
1380 st_Nil, /* 94 */
1381 st_Nil, /* 95 */
1382 st_Nil, /* 96 */
1383 st_Nil, /* 97 */
1384 st_Nil, /* 98 */
1385 st_Nil, /* 99 */
1386 st_Block, /* 100: C_BLOCK block start/end */
1387 st_Proc, /* 101: C_FCN function start/end */
1388 st_End, /* 102: C_EOS end of struct/union/enum */
1389 st_File, /* 103: C_FILE file start */
1390 st_Nil, /* 104: C_LINE line number */
1391 st_Nil, /* 105: C_ALIAS combined type info */
1392 st_Nil, /* 106: C_HIDDEN ??? */
1393 };
1394
1395
1396 /* Keep track of different sized allocation requests. */
1397 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1398 \f
1399 /* Various statics. */
1400 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1401 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1402 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1403 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1404 #ifdef ECOFF_DEBUG
1405 static int debug = 0; /* trace functions */
1406 #endif
1407 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1408
1409
1410 /* Pseudo symbol to use when putting stabs into the symbol table. */
1411 #ifndef STABS_SYMBOL
1412 #define STABS_SYMBOL "@stabs"
1413 #endif
1414
1415 static char stabs_symbol[] = STABS_SYMBOL;
1416 \f
1417 /* Prototypes for functions defined in this file. */
1418
1419 static void add_varray_page PARAMS ((varray_t *vp));
1420 static symint_t add_string PARAMS ((varray_t *vp,
1421 struct hash_control *hash_tbl,
1422 const char *str,
1423 shash_t **ret_hash));
1424 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1425 sc_t storage, symbolS *sym,
1426 symint_t value,
1427 symint_t indx));
1428 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1429 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1430 symint_t sym_index));
1431 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1432 hash_state_t state,
1433 thash_t **hash_tbl));
1434 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1435 bt_t basic_type));
1436 static void add_unknown_tag PARAMS ((tag_t *ptag));
1437 static void add_procedure PARAMS ((char *func));
1438 static void add_file PARAMS ((const char *file_name, int indx));
1439 #ifdef ECOFF_DEBUG
1440 static char *sc_to_string PARAMS ((sc_t storage_class));
1441 static char *st_to_string PARAMS ((st_t symbol_type));
1442 #endif
1443 static void obj_ecoff_def PARAMS ((int));
1444 static void obj_ecoff_dim PARAMS ((int));
1445 static void obj_ecoff_endef PARAMS ((int));
1446 static void obj_ecoff_file PARAMS ((int));
1447 static void obj_ecoff_scl PARAMS ((int));
1448 static void obj_ecoff_size PARAMS ((int));
1449 static void obj_ecoff_tag PARAMS ((int));
1450 static void obj_ecoff_type PARAMS ((int));
1451 static void obj_ecoff_val PARAMS ((int));
1452 static void obj_ecoff_stab PARAMS ((int));
1453 static void obj_ecoff_ent PARAMS ((int));
1454 static void obj_ecoff_begin PARAMS ((int));
1455 static void obj_ecoff_bend PARAMS ((int));
1456 static void obj_ecoff_end PARAMS ((int));
1457 static void obj_ecoff_fmask PARAMS ((int));
1458 static void obj_ecoff_frame PARAMS ((int));
1459 static void obj_ecoff_loc PARAMS ((int));
1460 static void obj_ecoff_mask PARAMS ((int));
1461 static void mark_stabs PARAMS ((int));
1462 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1463 char *bufptr, long need));
1464 static long ecoff_longword_adjust PARAMS ((char **buf, char **bufend,
1465 long offset, char **bufptrptr));
1466 static long ecoff_build_lineno PARAMS ((char **buf, char **bufend,
1467 long offset, long *linecntptr));
1468 static long ecoff_build_symbols PARAMS ((char **buf, char **bufend,
1469 long offset,
1470 char **extbuf, char **extbufend,
1471 long *extoffset,
1472 varray_t *ext_strings,
1473 struct hash_control *ext_str_hash));
1474 static long ecoff_build_procs PARAMS ((char **buf, char **bufend,
1475 long offset));
1476 static long ecoff_build_aux PARAMS ((char **buf, char **bufend,
1477 long offset));
1478 static long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1479 long offset,
1480 varray_t *vp));
1481 static long ecoff_build_ss PARAMS ((char **buf, char **bufend,
1482 long offset));
1483 static long ecoff_build_fdr PARAMS ((char **buf, char **bufend,
1484 long offset));
1485 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1486 static page_t *allocate_page PARAMS ((void));
1487 static scope_t *allocate_scope PARAMS ((void));
1488 static void free_scope PARAMS ((scope_t *ptr));
1489 static vlinks_t *allocate_vlinks PARAMS ((void));
1490 static shash_t *allocate_shash PARAMS ((void));
1491 static thash_t *allocate_thash PARAMS ((void));
1492 static tag_t *allocate_tag PARAMS ((void));
1493 static void free_tag PARAMS ((tag_t *ptr));
1494 static forward_t *allocate_forward PARAMS ((void));
1495 static thead_t *allocate_thead PARAMS ((void));
1496 static void free_thead PARAMS ((thead_t *ptr));
1497 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1498
1499 /* Why isn't this in some header file somewhere? In fact, is it even
1500 necessary? */
1501 #define SKIP_WHITESPACES() \
1502 do \
1503 { \
1504 while (*input_line_pointer == ' ' \
1505 || *input_line_pointer == '\t') \
1506 ++input_line_pointer; \
1507 } \
1508 while (0)
1509 \f
1510 /* These are the pseudo-ops we support in this file. Only those
1511 relating to debugging information are supported here.
1512
1513 The following pseudo-ops from the Kane and Heinrich MIPS book
1514 should be defined here, but are currently unsupported: .aent,
1515 .bgnb, .endb, .verstamp, .vreg.
1516
1517 The following pseudo-ops from the Kane and Heinrich MIPS book are
1518 MIPS CPU specific, and should be defined by tc-mips.c: .alias,
1519 .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option,
1520 .rdata, .sdata, .set.
1521
1522 The following pseudo-ops from the Kane and Heinrich MIPS book are
1523 not MIPS CPU specific, but are also not ECOFF specific. I have
1524 only listed the ones which are not already in read.c. It's not
1525 completely clear where these should be defined, but tc-mips.c is
1526 probably the most reasonable place: .asciiz, .asm0, .endr, .err,
1527 .half, .lab, .repeat, .struct, .weakext. */
1528
1529 const pseudo_typeS obj_pseudo_table[] =
1530 {
1531 /* COFF style debugging information. .ln is not used; .loc is used
1532 instead. */
1533 { "def", obj_ecoff_def, 0 },
1534 { "dim", obj_ecoff_dim, 0 },
1535 { "endef", obj_ecoff_endef, 0 },
1536 { "file", obj_ecoff_file, 0 },
1537 { "scl", obj_ecoff_scl, 0 },
1538 { "size", obj_ecoff_size, 0 },
1539 { "tag", obj_ecoff_tag, 0 },
1540 { "type", obj_ecoff_type, 0 },
1541 { "val", obj_ecoff_val, 0 },
1542
1543 /* stabs debugging information. */
1544 { "stabd", obj_ecoff_stab, 'd' },
1545 { "stabn", obj_ecoff_stab, 'n' },
1546 { "stabs", obj_ecoff_stab, 's' },
1547
1548 /* ECOFF specific debugging information. */
1549 { "begin", obj_ecoff_begin, 0 },
1550 { "bend", obj_ecoff_bend, 0 },
1551 { "end", obj_ecoff_end, 0 },
1552 { "ent", obj_ecoff_ent, 0 },
1553 { "fmask", obj_ecoff_fmask, 0 },
1554 { "frame", obj_ecoff_frame, 0 },
1555 { "loc", obj_ecoff_loc, 0 },
1556 { "mask", obj_ecoff_mask, 0 },
1557
1558 /* Sentinel. */
1559 { NULL }
1560 };
1561 \f
1562 /* This function is called when the assembler starts up. */
1563
1564 void
1565 obj_read_begin_hook ()
1566 {
1567 tag_hash = hash_new ();
1568 top_tag_head = allocate_thead ();
1569 top_tag_head->first_tag = (tag_t *) NULL;
1570 top_tag_head->free = (thead_t *) NULL;
1571 top_tag_head->prev = cur_tag_head;
1572 cur_tag_head = top_tag_head;
1573 }
1574
1575 /* This function is called when a symbol is created. */
1576
1577 void
1578 obj_symbol_new_hook (symbolP)
1579 symbolS *symbolP;
1580 {
1581 if (cur_file_ptr == (efdr_t *) NULL)
1582 add_file ((const char *) NULL, 0);
1583 symbolP->ecoff_file = cur_file_ptr;
1584 symbolP->ecoff_symbol = 0;
1585 symbolP->ecoff_undefined = 0;
1586 }
1587 \f
1588 /* Add a page to a varray object. */
1589
1590 static void
1591 add_varray_page (vp)
1592 varray_t *vp; /* varray to add page to */
1593 {
1594 vlinks_t *new_links = allocate_vlinks ();
1595
1596 #ifdef MALLOC_CHECK
1597 if (vp->object_size > 1)
1598 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1599 else
1600 #endif
1601 new_links->datum = allocate_page ();
1602
1603 alloc_counts[(int)alloc_type_varray].total_alloc++;
1604 alloc_counts[(int)alloc_type_varray].total_pages++;
1605
1606 new_links->start_index = vp->num_allocated;
1607 vp->objects_last_page = 0;
1608
1609 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1610 vp->first = vp->last = new_links;
1611 else
1612 { /* 2nd or greater allocation */
1613 new_links->prev = vp->last;
1614 vp->last->next = new_links;
1615 vp->last = new_links;
1616 }
1617 }
1618 \f
1619 /* Add a string (and null pad) to one of the string tables. */
1620
1621 static symint_t
1622 add_string (vp, hash_tbl, str, ret_hash)
1623 varray_t *vp; /* string obstack */
1624 struct hash_control *hash_tbl; /* ptr to hash table */
1625 const char *str; /* string */
1626 shash_t **ret_hash; /* return hash pointer */
1627 {
1628 register unsigned int len = strlen (str);
1629 register shash_t *hash_ptr;
1630
1631 if (len >= PAGE_USIZE)
1632 as_fatal ("String too big (%lu bytes)", len);
1633
1634 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1635 if (hash_ptr == (shash_t *) NULL)
1636 {
1637 register char *err;
1638
1639 if (vp->objects_last_page + len >= PAGE_USIZE)
1640 {
1641 vp->num_allocated =
1642 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1643 add_varray_page (vp);
1644 }
1645
1646 hash_ptr = allocate_shash ();
1647 hash_ptr->indx = vp->num_allocated;
1648
1649 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1650
1651 vp->objects_last_page += len + 1;
1652 vp->num_allocated += len + 1;
1653
1654 strcpy (hash_ptr->string, str);
1655
1656 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1657 if (*err != '\0')
1658 as_fatal ("Inserting \"%s\" into string hash table: %s",
1659 str, err);
1660 }
1661
1662 if (ret_hash != (shash_t **) NULL)
1663 *ret_hash = hash_ptr;
1664
1665 return hash_ptr->indx;
1666 }
1667 \f
1668 /* Add debugging information for a symbol. */
1669
1670 static localsym_t *
1671 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1672 const char *str; /* symbol name */
1673 st_t type; /* symbol type */
1674 sc_t storage; /* storage class */
1675 symbolS *sym_value; /* associated symbol. */
1676 symint_t value; /* value of symbol */
1677 symint_t indx; /* index to local/aux. syms */
1678 {
1679 localsym_t *psym;
1680 register scope_t *pscope;
1681 register thead_t *ptag_head;
1682 register tag_t *ptag;
1683 register tag_t *ptag_next;
1684 register varray_t *vp;
1685 register int scope_delta = 0;
1686 shash_t *hash_ptr = (shash_t *) NULL;
1687
1688 if (cur_file_ptr == (efdr_t *) NULL)
1689 as_fatal ("no current file pointer");
1690
1691 vp = &cur_file_ptr->symbols;
1692
1693 if (vp->objects_last_page == vp->objects_per_page)
1694 add_varray_page (vp);
1695
1696 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1697
1698 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1699 psym->name = S_GET_NAME (sym_value);
1700 else
1701 psym->name = str;
1702 psym->as_sym = sym_value;
1703 if (sym_value != (symbolS *) NULL)
1704 sym_value->ecoff_symbol = 1;
1705 psym->file_ptr = cur_file_ptr;
1706 psym->proc_ptr = cur_proc_ptr;
1707 psym->begin_ptr = (localsym_t *) NULL;
1708 psym->index_ptr = (aux_t *) NULL;
1709 psym->forward_ref = (forward_t *) NULL;
1710 psym->sym_index = -1;
1711 psym->ecoff_sym.value = value;
1712 psym->ecoff_sym.st = (unsigned) type;
1713 psym->ecoff_sym.sc = (unsigned) storage;
1714 psym->ecoff_sym.index = indx;
1715
1716 /* If there is an associated symbol, we wait until the end of the
1717 assembly before deciding where to put the name (it may be just an
1718 external symbol). Otherwise, this is just a debugging symbol and
1719 the name should go with the current file. */
1720 if (sym_value == (symbolS *) NULL)
1721 psym->ecoff_sym.iss = ((str == (const char *) NULL)
1722 ? 0
1723 : add_string (&cur_file_ptr->strings,
1724 cur_file_ptr->str_hash,
1725 str,
1726 &hash_ptr));
1727
1728 ++vp->num_allocated;
1729
1730 if (MIPS_IS_STAB (&psym->ecoff_sym))
1731 return psym;
1732
1733 /* Save the symbol within the hash table if this is a static
1734 item, and it has a name. */
1735 if (hash_ptr != (shash_t *) NULL
1736 && (type == st_Global || type == st_Static || type == st_Label
1737 || type == st_Proc || type == st_StaticProc))
1738 hash_ptr->sym_ptr = psym;
1739
1740 /* push or pop a scope if appropriate. */
1741 switch (type)
1742 {
1743 default:
1744 break;
1745
1746 case st_File: /* beginning of file */
1747 case st_Proc: /* procedure */
1748 case st_StaticProc: /* static procedure */
1749 case st_Block: /* begin scope */
1750 pscope = allocate_scope ();
1751 pscope->prev = cur_file_ptr->cur_scope;
1752 pscope->lsym = psym;
1753 pscope->type = type;
1754 cur_file_ptr->cur_scope = pscope;
1755
1756 if (type != st_File)
1757 scope_delta = 1;
1758
1759 /* For every block type except file, struct, union, or
1760 enumeration blocks, push a level on the tag stack. We omit
1761 file types, so that tags can span file boundaries. */
1762 if (type != st_File && storage != sc_Info)
1763 {
1764 ptag_head = allocate_thead ();
1765 ptag_head->first_tag = 0;
1766 ptag_head->prev = cur_tag_head;
1767 cur_tag_head = ptag_head;
1768 }
1769 break;
1770
1771 case st_End:
1772 pscope = cur_file_ptr->cur_scope;
1773 if (pscope == (scope_t *) NULL)
1774 as_fatal ("too many st_End's");
1775 else
1776 {
1777 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.st;
1778
1779 psym->begin_ptr = pscope->lsym;
1780
1781 if (begin_type != st_File)
1782 scope_delta = -1;
1783
1784 /* Except for file, structure, union, or enumeration end
1785 blocks remove all tags created within this scope. */
1786 if (begin_type != st_File && storage != sc_Info)
1787 {
1788 ptag_head = cur_tag_head;
1789 cur_tag_head = ptag_head->prev;
1790
1791 for (ptag = ptag_head->first_tag;
1792 ptag != (tag_t *) NULL;
1793 ptag = ptag_next)
1794 {
1795 if (ptag->forward_ref != (forward_t *) NULL)
1796 add_unknown_tag (ptag);
1797
1798 ptag_next = ptag->same_block;
1799 ptag->hash_ptr->tag_ptr = ptag->same_name;
1800 free_tag (ptag);
1801 }
1802
1803 free_thead (ptag_head);
1804 }
1805
1806 cur_file_ptr->cur_scope = pscope->prev;
1807
1808 /* block begin gets next sym #. This is set when we know
1809 the symbol index value. */
1810
1811 /* Functions push two or more aux words as follows:
1812 1st word: index+1 of the end symbol (filled in later).
1813 2nd word: type of the function (plus any aux words needed).
1814 Also, tie the external pointer back to the function begin symbol. */
1815 if (begin_type != st_File && begin_type != st_Block)
1816 {
1817 symint_t type;
1818 varray_t *vp = &cur_file_ptr->aux_syms;
1819
1820 pscope->lsym->ecoff_sym.index = add_aux_sym_symint (0);
1821 pscope->lsym->index_ptr =
1822 &vp->last->datum->aux[vp->objects_last_page - 1];
1823 type = add_aux_sym_tir (&last_func_type_info,
1824 hash_no,
1825 &cur_file_ptr->thash_head[0]);
1826 /*
1827 if (last_func_sym_value != (symbolS *) NULL)
1828 {
1829 last_func_sym_value->ifd = cur_file_ptr->file_index;
1830 last_func_sym_value->index = type;
1831 }
1832 */
1833 }
1834
1835 free_scope (pscope);
1836 }
1837 }
1838
1839 cur_file_ptr->nested_scopes += scope_delta;
1840
1841 #ifdef ECOFF_DEBUG
1842 if (debug && type != st_File
1843 && (debug > 2 || type == st_Block || type == st_End
1844 || type == st_Proc || type == st_StaticProc))
1845 {
1846 char *sc_str = sc_to_string (storage);
1847 char *st_str = st_to_string (type);
1848 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1849
1850 fprintf (stderr,
1851 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1852 value, depth, sc_str);
1853
1854 if (str_start && str_end_p1 - str_start > 0)
1855 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1856 else
1857 {
1858 unsigned long len = strlen (st_str);
1859 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1860 }
1861 }
1862 #endif
1863
1864 return psym;
1865 }
1866 \f
1867 /* Add an auxiliary symbol (passing a symint). This is actually used
1868 for integral aux types, not just symints. */
1869
1870 static symint_t
1871 add_aux_sym_symint (aux_word)
1872 symint_t aux_word; /* auxiliary information word */
1873 {
1874 register varray_t *vp;
1875 register aux_t *aux_ptr;
1876
1877 if (cur_file_ptr == (efdr_t *) NULL)
1878 as_fatal ("no current file pointer");
1879
1880 vp = &cur_file_ptr->aux_syms;
1881
1882 if (vp->objects_last_page == vp->objects_per_page)
1883 add_varray_page (vp);
1884
1885 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1886 aux_ptr->type = aux_isym;
1887 aux_ptr->data.isym = aux_word;
1888
1889 return vp->num_allocated++;
1890 }
1891
1892
1893 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1894
1895 static symint_t
1896 add_aux_sym_rndx (file_index, sym_index)
1897 int file_index;
1898 symint_t sym_index;
1899 {
1900 register varray_t *vp;
1901 register aux_t *aux_ptr;
1902
1903 if (cur_file_ptr == (efdr_t *) NULL)
1904 as_fatal ("no current file pointer");
1905
1906 vp = &cur_file_ptr->aux_syms;
1907
1908 if (vp->objects_last_page == vp->objects_per_page)
1909 add_varray_page (vp);
1910
1911 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1912 aux_ptr->type = aux_rndx;
1913 aux_ptr->data.rndx.rfd = file_index;
1914 aux_ptr->data.rndx.index = sym_index;
1915
1916 return vp->num_allocated++;
1917 }
1918 \f
1919 /* Add an auxiliary symbol (passing the basic type and possibly
1920 type qualifiers). */
1921
1922 static symint_t
1923 add_aux_sym_tir (t, state, hash_tbl)
1924 type_info_t *t; /* current type information */
1925 hash_state_t state; /* whether to hash type or not */
1926 thash_t **hash_tbl; /* pointer to hash table to use */
1927 {
1928 register varray_t *vp;
1929 register aux_t *aux_ptr;
1930 static AUXU init_aux;
1931 symint_t ret;
1932 int i;
1933 AUXU aux;
1934
1935 if (cur_file_ptr == (efdr_t *) NULL)
1936 as_fatal ("no current file pointer");
1937
1938 vp = &cur_file_ptr->aux_syms;
1939
1940 aux = init_aux;
1941 aux.ti.bt = (int) t->basic_type;
1942 aux.ti.continued = 0;
1943 aux.ti.fBitfield = t->bitfield;
1944
1945 aux.ti.tq0 = (int) t->type_qualifiers[0];
1946 aux.ti.tq1 = (int) t->type_qualifiers[1];
1947 aux.ti.tq2 = (int) t->type_qualifiers[2];
1948 aux.ti.tq3 = (int) t->type_qualifiers[3];
1949 aux.ti.tq4 = (int) t->type_qualifiers[4];
1950 aux.ti.tq5 = (int) t->type_qualifiers[5];
1951
1952
1953 /* For anything that adds additional information, we must not hash,
1954 so check here, and reset our state. */
1955
1956 if (state != hash_no
1957 && (t->type_qualifiers[0] == tq_Array
1958 || t->type_qualifiers[1] == tq_Array
1959 || t->type_qualifiers[2] == tq_Array
1960 || t->type_qualifiers[3] == tq_Array
1961 || t->type_qualifiers[4] == tq_Array
1962 || t->type_qualifiers[5] == tq_Array
1963 || t->basic_type == bt_Struct
1964 || t->basic_type == bt_Union
1965 || t->basic_type == bt_Enum
1966 || t->bitfield
1967 || t->num_dims > 0))
1968 state = hash_no;
1969
1970 /* See if we can hash this type, and save some space, but some types
1971 can't be hashed (because they contain arrays or continuations),
1972 and others can be put into the hash list, but cannot use existing
1973 types because other aux entries precede this one. */
1974
1975 if (state != hash_no)
1976 {
1977 register thash_t *hash_ptr;
1978 register symint_t hi;
1979
1980 hi = aux.isym & ((1 << HASHBITS) - 1);
1981 hi %= THASH_SIZE;
1982
1983 for (hash_ptr = hash_tbl[hi];
1984 hash_ptr != (thash_t *)0;
1985 hash_ptr = hash_ptr->next)
1986 {
1987 if (aux.isym == hash_ptr->type.isym)
1988 break;
1989 }
1990
1991 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1992 return hash_ptr->indx;
1993
1994 if (hash_ptr == (thash_t *) NULL)
1995 {
1996 hash_ptr = allocate_thash ();
1997 hash_ptr->next = hash_tbl[hi];
1998 hash_ptr->type = aux;
1999 hash_ptr->indx = vp->num_allocated;
2000 hash_tbl[hi] = hash_ptr;
2001 }
2002 }
2003
2004 /* Everything is set up, add the aux symbol. */
2005 if (vp->objects_last_page == vp->objects_per_page)
2006 add_varray_page (vp);
2007
2008 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2009 aux_ptr->type = aux_tir;
2010 aux_ptr->data = aux;
2011
2012 ret = vp->num_allocated++;
2013
2014 /* Add bitfield length if it exists.
2015
2016 NOTE: Mips documentation claims bitfield goes at the end of the
2017 AUX record, but the DECstation compiler emits it here.
2018 (This would only make a difference for enum bitfields.)
2019
2020 Also note: We use the last size given since gcc may emit 2
2021 for an enum bitfield. */
2022
2023 if (t->bitfield)
2024 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2025
2026
2027 /* Add tag information if needed. Structure, union, and enum
2028 references add 2 aux symbols: a [file index, symbol index]
2029 pointer to the structure type, and the current file index. */
2030
2031 if (t->basic_type == bt_Struct
2032 || t->basic_type == bt_Union
2033 || t->basic_type == bt_Enum)
2034 {
2035 register symint_t file_index = t->tag_ptr->ifd;
2036 register localsym_t *sym = t->tag_ptr->sym;
2037 register forward_t *forward_ref = allocate_forward ();
2038
2039 if (sym != (localsym_t *) NULL)
2040 {
2041 forward_ref->next = sym->forward_ref;
2042 sym->forward_ref = forward_ref;
2043 }
2044 else
2045 {
2046 forward_ref->next = t->tag_ptr->forward_ref;
2047 t->tag_ptr->forward_ref = forward_ref;
2048 }
2049
2050 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
2051 forward_ref->index_ptr
2052 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2053
2054 (void) add_aux_sym_symint (file_index);
2055 forward_ref->ifd_ptr
2056 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2057 }
2058
2059 /* Add information about array bounds if they exist. */
2060 for (i = 0; i < t->num_dims; i++)
2061 {
2062 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2063 cur_file_ptr->int_type);
2064
2065 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2066 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2067 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2068 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2069 ? 0
2070 : (t->sizes[i] * 8) / t->dimensions[i]);
2071 };
2072
2073 /* NOTE: Mips documentation claims that the bitfield width goes here.
2074 But it needs to be emitted earlier. */
2075
2076 return ret;
2077 }
2078 \f
2079 /* Add a tag to the tag table (unless it already exists). */
2080
2081 static tag_t *
2082 get_tag (tag, sym, basic_type)
2083 const char *tag; /* tag name */
2084 localsym_t *sym; /* tag start block */
2085 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2086 {
2087 shash_t *hash_ptr;
2088 char *err;
2089 tag_t *tag_ptr;
2090
2091 if (cur_file_ptr == (efdr_t *) NULL)
2092 as_fatal ("no current file pointer");
2093
2094 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2095
2096 if (hash_ptr != (shash_t *) NULL
2097 && hash_ptr->tag_ptr != (tag_t *) NULL)
2098 {
2099 tag_ptr = hash_ptr->tag_ptr;
2100 if (sym != (localsym_t *) NULL)
2101 {
2102 tag_ptr->basic_type = basic_type;
2103 tag_ptr->ifd = cur_file_ptr->file_index;
2104 tag_ptr->sym = sym;
2105 }
2106 return tag_ptr;
2107 }
2108
2109 if (hash_ptr == (shash_t *) NULL)
2110 {
2111 char *perm;
2112
2113 perm = xmalloc (strlen (tag) + 1);
2114 strcpy (perm, tag);
2115 hash_ptr = allocate_shash ();
2116 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2117 if (*err != '\0')
2118 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2119 tag, err);
2120 hash_ptr->string = perm;
2121 }
2122
2123 tag_ptr = allocate_tag ();
2124 tag_ptr->forward_ref = (forward_t *) NULL;
2125 tag_ptr->hash_ptr = hash_ptr;
2126 tag_ptr->same_name = hash_ptr->tag_ptr;
2127 tag_ptr->basic_type = basic_type;
2128 tag_ptr->sym = sym;
2129 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2130 ? -1
2131 : cur_file_ptr->file_index);
2132 tag_ptr->same_block = cur_tag_head->first_tag;
2133
2134 cur_tag_head->first_tag = tag_ptr;
2135 hash_ptr->tag_ptr = tag_ptr;
2136
2137 return tag_ptr;
2138 }
2139 \f
2140 /* Add an unknown {struct, union, enum} tag. */
2141
2142 static void
2143 add_unknown_tag (ptag)
2144 tag_t *ptag; /* pointer to tag information */
2145 {
2146 shash_t *hash_ptr = ptag->hash_ptr;
2147 char *name = hash_ptr->string;
2148 localsym_t *sym;
2149 forward_t **pf;
2150
2151 #ifdef ECOFF_DEBUG
2152 if (debug > 1)
2153 {
2154 char *agg_type = "{unknown aggregate type}";
2155 switch (ptag->basic_type)
2156 {
2157 case bt_Struct: agg_type = "struct"; break;
2158 case bt_Union: agg_type = "union"; break;
2159 case bt_Enum: agg_type = "enum"; break;
2160 default: break;
2161 }
2162
2163 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2164 hash_ptr->len, name_start);
2165 }
2166 #endif
2167
2168 sym = add_ecoff_symbol (name,
2169 st_Block,
2170 sc_Info,
2171 (symbolS *) NULL,
2172 (symint_t) 0,
2173 (symint_t) 0);
2174
2175 (void) add_ecoff_symbol (name,
2176 st_End,
2177 sc_Info,
2178 (symbolS *) NULL,
2179 (symint_t) 0,
2180 (symint_t) 0);
2181
2182 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2183 ;
2184 *pf = ptag->forward_ref;
2185 }
2186 \f
2187 /* Add a procedure to the current file's list of procedures, and record
2188 this is the current procedure. */
2189
2190 static void
2191 add_procedure (func)
2192 char *func; /* func name */
2193 {
2194 register varray_t *vp;
2195 register proc_t *new_proc_ptr;
2196
2197 #ifdef ECOFF_DEBUG
2198 if (debug)
2199 fputc ('\n', stderr);
2200 #endif
2201
2202 if (cur_file_ptr == (efdr_t *) NULL)
2203 as_fatal ("no current file pointer");
2204
2205 vp = &cur_file_ptr->procs;
2206
2207 if (vp->objects_last_page == vp->objects_per_page)
2208 add_varray_page (vp);
2209
2210 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2211
2212 vp->num_allocated++;
2213
2214 new_proc_ptr->pdr.isym = -1;
2215 new_proc_ptr->pdr.iline = -1;
2216 new_proc_ptr->pdr.lnLow = -1;
2217 new_proc_ptr->pdr.lnHigh = -1;
2218
2219 /* Push the start of the function. */
2220 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2221 symbol_find_or_make (func),
2222 (symint_t) 0, (symint_t) 0);
2223
2224 ++proc_cnt;
2225
2226 /* Fill in the linenos preceding the .ent, if any. */
2227 if (noproc_lineno != (lineno_list_t *) NULL)
2228 {
2229 lineno_list_t *l;
2230
2231 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2232 l->proc = new_proc_ptr;
2233 *last_lineno_ptr = noproc_lineno;
2234 while (*last_lineno_ptr != NULL)
2235 last_lineno_ptr = &(*last_lineno_ptr)->next;
2236 noproc_lineno = (lineno_list_t *) NULL;
2237 }
2238 }
2239 \f
2240 /* Add a new filename, and set up all of the file relative
2241 virtual arrays (strings, symbols, aux syms, etc.). Record
2242 where the current file structure lives. */
2243
2244 static void
2245 add_file (file_name, indx)
2246 const char *file_name; /* file name */
2247 int indx;
2248 {
2249 register int first_ch;
2250 register efdr_t *fil_ptr;
2251
2252 #ifdef ECOFF_DEBUG
2253 if (debug)
2254 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2255 #endif
2256
2257 /* If the file name is NULL, then no .file symbol appeared, and we
2258 want to use the actual file name. Unfortunately, we don't have a
2259 clean way to access it. */
2260 if (file_name == (const char *) NULL)
2261 {
2262 extern char *logical_input_file;
2263 extern char *physical_input_file;
2264
2265 if (first_file != (efdr_t *) NULL)
2266 as_fatal ("fake .file after real one");
2267 file_name = logical_input_file;
2268 if (file_name == (const char *) NULL)
2269 {
2270 file_name = physical_input_file;
2271 if (file_name == (const char *) NULL)
2272 file_name = "UNKNOWN";
2273 }
2274 }
2275
2276 #ifndef NO_LISTING
2277 if (listing)
2278 listing_source_file (file_name);
2279 #endif
2280
2281 /* If we're creating stabs, then we don't actually make a new FDR.
2282 Instead, we just create a stabs symbol. */
2283 if (stabs_seen)
2284 {
2285 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2286 symbol_new ("L0\001", now_seg,
2287 frag_now_fix (), frag_now),
2288 0, MIPS_MARK_STAB (N_SOL));
2289 return;
2290 }
2291
2292 first_ch = *file_name;
2293
2294 /* See if the file has already been created. */
2295 for (fil_ptr = first_file;
2296 fil_ptr != (efdr_t *) NULL;
2297 fil_ptr = fil_ptr->next_file)
2298 {
2299 if (first_ch == fil_ptr->name[0]
2300 && strcmp (file_name, fil_ptr->name) == 0)
2301 {
2302 cur_file_ptr = fil_ptr;
2303 break;
2304 }
2305 }
2306
2307 /* If this is a new file, create it. */
2308 if (fil_ptr == (efdr_t *) NULL)
2309 {
2310 if (file_desc.objects_last_page == file_desc.objects_per_page)
2311 add_varray_page (&file_desc);
2312
2313 fil_ptr = cur_file_ptr =
2314 &file_desc.last->datum->file[file_desc.objects_last_page++];
2315 *fil_ptr = init_file;
2316
2317 fil_ptr->file_index = indx;
2318 ++file_desc.num_allocated;
2319
2320 /* Allocate the string hash table. */
2321 fil_ptr->str_hash = hash_new ();
2322
2323 /* Make sure 0 byte in string table is null */
2324 add_string (&fil_ptr->strings,
2325 fil_ptr->str_hash,
2326 "",
2327 (shash_t **)0);
2328
2329 if (strlen (file_name) > PAGE_USIZE - 2)
2330 as_fatal ("Filename goes over one page boundary.");
2331
2332 /* Push the start of the filename. We assume that the filename
2333 will be stored at string offset 1. */
2334 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2335 (symbolS *) NULL,
2336 (symint_t) 0, (symint_t) 0);
2337 fil_ptr->fdr.rss = 1;
2338 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2339
2340 /* Update the linked list of file descriptors. */
2341 *last_file_ptr = fil_ptr;
2342 last_file_ptr = &fil_ptr->next_file;
2343
2344 /* Add void & int types to the file (void should be first to catch
2345 errant 0's within the index fields). */
2346 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2347 hash_yes,
2348 &cur_file_ptr->thash_head[0]);
2349
2350 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2351 hash_yes,
2352 &cur_file_ptr->thash_head[0]);
2353 }
2354 }
2355 \f
2356 #ifdef ECOFF_DEBUG
2357
2358 /* Convert storage class to string. */
2359
2360 static char *
2361 sc_to_string(storage_class)
2362 sc_t storage_class;
2363 {
2364 switch(storage_class)
2365 {
2366 case sc_Nil: return "Nil,";
2367 case sc_Text: return "Text,";
2368 case sc_Data: return "Data,";
2369 case sc_Bss: return "Bss,";
2370 case sc_Register: return "Register,";
2371 case sc_Abs: return "Abs,";
2372 case sc_Undefined: return "Undefined,";
2373 case sc_CdbLocal: return "CdbLocal,";
2374 case sc_Bits: return "Bits,";
2375 case sc_CdbSystem: return "CdbSystem,";
2376 case sc_RegImage: return "RegImage,";
2377 case sc_Info: return "Info,";
2378 case sc_UserStruct: return "UserStruct,";
2379 case sc_SData: return "SData,";
2380 case sc_SBss: return "SBss,";
2381 case sc_RData: return "RData,";
2382 case sc_Var: return "Var,";
2383 case sc_Common: return "Common,";
2384 case sc_SCommon: return "SCommon,";
2385 case sc_VarRegister: return "VarRegister,";
2386 case sc_Variant: return "Variant,";
2387 case sc_SUndefined: return "SUndefined,";
2388 case sc_Init: return "Init,";
2389 case sc_Max: return "Max,";
2390 }
2391
2392 return "???,";
2393 }
2394
2395 #endif /* DEBUG */
2396 \f
2397 #ifdef ECOFF_DEBUG
2398
2399 /* Convert symbol type to string. */
2400
2401 static char *
2402 st_to_string(symbol_type)
2403 st_t symbol_type;
2404 {
2405 switch(symbol_type)
2406 {
2407 case st_Nil: return "Nil,";
2408 case st_Global: return "Global,";
2409 case st_Static: return "Static,";
2410 case st_Param: return "Param,";
2411 case st_Local: return "Local,";
2412 case st_Label: return "Label,";
2413 case st_Proc: return "Proc,";
2414 case st_Block: return "Block,";
2415 case st_End: return "End,";
2416 case st_Member: return "Member,";
2417 case st_Typedef: return "Typedef,";
2418 case st_File: return "File,";
2419 case st_RegReloc: return "RegReloc,";
2420 case st_Forward: return "Forward,";
2421 case st_StaticProc: return "StaticProc,";
2422 case st_Constant: return "Constant,";
2423 case st_Str: return "String,";
2424 case st_Number: return "Number,";
2425 case st_Expr: return "Expr,";
2426 case st_Type: return "Type,";
2427 case st_Max: return "Max,";
2428 }
2429
2430 return "???,";
2431 }
2432
2433 #endif /* DEBUG */
2434 \f
2435 /* Parse .begin directives which have a label as the first argument
2436 which gives the location of the start of the block. */
2437
2438 static void
2439 obj_ecoff_begin (ignore)
2440 int ignore;
2441 {
2442 char *name;
2443 char name_end;
2444
2445 if (cur_file_ptr == (efdr_t *) NULL)
2446 {
2447 as_warn (".begin directive without a preceding .file directive");
2448 demand_empty_rest_of_line ();
2449 return;
2450 }
2451
2452 if (cur_proc_ptr == (proc_t *) NULL)
2453 {
2454 as_warn (".begin directive without a preceding .ent directive");
2455 demand_empty_rest_of_line ();
2456 return;
2457 }
2458
2459 name = input_line_pointer;
2460 name_end = get_symbol_end ();
2461
2462 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2463 symbol_find_or_make (name),
2464 (symint_t) 0, (symint_t) 0);
2465
2466 *input_line_pointer = name_end;
2467
2468 /* The line number follows, but we don't use it. */
2469 (void) get_absolute_expression ();
2470 demand_empty_rest_of_line ();
2471 }
2472 \f
2473 /* Parse .bend directives which have a label as the first argument
2474 which gives the location of the end of the block. */
2475
2476 static void
2477 obj_ecoff_bend (ignore)
2478 int ignore;
2479 {
2480 char *name;
2481 char name_end;
2482 symbolS *endsym;
2483
2484 if (cur_file_ptr == (efdr_t *) NULL)
2485 {
2486 as_warn (".bend directive without a preceding .file directive");
2487 demand_empty_rest_of_line ();
2488 return;
2489 }
2490
2491 if (cur_proc_ptr == (proc_t *) NULL)
2492 {
2493 as_warn (".bend directive without a preceding .ent directive");
2494 demand_empty_rest_of_line ();
2495 return;
2496 }
2497
2498 name = input_line_pointer;
2499 name_end = get_symbol_end ();
2500
2501 /* The value is the distance between the .bend directive and the
2502 corresponding symbol. We fill in the offset when we write out
2503 the symbol. */
2504 endsym = symbol_find (name);
2505 if (endsym == (symbolS *) NULL)
2506 as_warn (".bend directive names unknown symbol");
2507 else
2508 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2509 (symint_t) 0, (symint_t) 0);
2510
2511 *input_line_pointer = name_end;
2512
2513 /* The line number follows, but we don't use it. */
2514 (void) get_absolute_expression ();
2515 demand_empty_rest_of_line ();
2516 }
2517 \f
2518 /* COFF debugging information is provided as a series of directives
2519 (.def, .scl, etc.). We build up information as we read the
2520 directives in the following static variables, and file it away when
2521 we reach the .endef directive. */
2522 static char *coff_sym_name;
2523 static type_info_t coff_type;
2524 static sc_t coff_storage_class;
2525 static st_t coff_symbol_type;
2526 static int coff_is_function;
2527 static char *coff_tag;
2528 static long coff_value; /* FIXME: Might be 64 bits. */
2529 symbolS *coff_sym_value;
2530 static int coff_inside_enumeration;
2531
2532 /* Handle a .def directive: start defining a symbol. */
2533
2534 static void
2535 obj_ecoff_def (ignore)
2536 int ignore;
2537 {
2538 char *name;
2539 char name_end;
2540
2541 SKIP_WHITESPACES ();
2542
2543 name = input_line_pointer;
2544 name_end = get_symbol_end ();
2545
2546 if (coff_sym_name != (char *) NULL)
2547 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2548 else if (*name == '\0')
2549 as_warn ("Empty symbol name in .def; ignored");
2550 else
2551 {
2552 if (coff_sym_name != (char *) NULL)
2553 free (coff_sym_name);
2554 if (coff_tag != (char *) NULL)
2555 free (coff_tag);
2556 coff_sym_name = (char *) xmalloc (strlen (name) + 1);
2557 strcpy (coff_sym_name, name);
2558 coff_type = type_info_init;
2559 coff_storage_class = sc_Nil;
2560 coff_symbol_type = st_Nil;
2561 coff_is_function = 0;
2562 coff_tag = (char *) NULL;
2563 coff_value = 0;
2564 coff_sym_value = (symbolS *) NULL;
2565 }
2566
2567 *input_line_pointer = name_end;
2568
2569 demand_empty_rest_of_line ();
2570 }
2571
2572 /* Handle a .dim directive, used to give dimensions for an array. The
2573 arguments are comma separated numbers. mips-tfile assumes that
2574 there will not be more than 6 dimensions, and gdb won't read any
2575 more than that anyhow, so I will also make that assumption. */
2576
2577 static void
2578 obj_ecoff_dim (ignore)
2579 int ignore;
2580 {
2581 int dimens[N_TQ];
2582 int i;
2583
2584 if (coff_sym_name == (char *) NULL)
2585 {
2586 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2587 demand_empty_rest_of_line ();
2588 return;
2589 }
2590
2591 for (i = 0; i < N_TQ; i++)
2592 {
2593 SKIP_WHITESPACES ();
2594 dimens[i] = get_absolute_expression ();
2595 if (*input_line_pointer == ',')
2596 ++input_line_pointer;
2597 else
2598 {
2599 if (*input_line_pointer != '\n'
2600 && *input_line_pointer != ';')
2601 as_warn ("Badly formed .dim directive");
2602 break;
2603 }
2604 }
2605
2606 if (i == N_TQ)
2607 --i;
2608
2609 /* The dimensions are stored away in reverse order. */
2610 for (; i >= 0; i--)
2611 {
2612 if (coff_type.num_dims >= N_TQ)
2613 {
2614 as_warn ("Too many .dim entries");
2615 break;
2616 }
2617 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2618 ++coff_type.num_dims;
2619 }
2620
2621 demand_empty_rest_of_line ();
2622 }
2623
2624 /* Handle a .scl directive, which sets the COFF storage class of the
2625 symbol. */
2626
2627 static void
2628 obj_ecoff_scl (ignore)
2629 int ignore;
2630 {
2631 long val;
2632
2633 if (coff_sym_name == (char *) NULL)
2634 {
2635 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2636 demand_empty_rest_of_line ();
2637 return;
2638 }
2639
2640 val = get_absolute_expression ();
2641
2642 coff_symbol_type = map_coff_sym_type[val];
2643 coff_storage_class = map_coff_storage[val];
2644
2645 demand_empty_rest_of_line ();
2646 }
2647
2648 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2649 .size can have multiple arguments. We humor it, although gcc will
2650 never generate more than one argument. */
2651
2652 static void
2653 obj_ecoff_size (ignore)
2654 int ignore;
2655 {
2656 int sizes[N_TQ];
2657 int i;
2658
2659 if (coff_sym_name == (char *) NULL)
2660 {
2661 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2662 demand_empty_rest_of_line ();
2663 return;
2664 }
2665
2666 for (i = 0; i < N_TQ; i++)
2667 {
2668 SKIP_WHITESPACES ();
2669 sizes[i] = get_absolute_expression ();
2670 if (*input_line_pointer == ',')
2671 ++input_line_pointer;
2672 else
2673 {
2674 if (*input_line_pointer != '\n'
2675 && *input_line_pointer != ';')
2676 as_warn ("Badly formed .size directive");
2677 break;
2678 }
2679 }
2680
2681 if (i == N_TQ)
2682 --i;
2683
2684 /* The sizes are stored away in reverse order. */
2685 for (; i >= 0; i--)
2686 {
2687 if (coff_type.num_sizes >= N_TQ)
2688 {
2689 as_warn ("Too many .size entries");
2690 break;
2691 }
2692 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2693 ++coff_type.num_sizes;
2694 }
2695
2696 demand_empty_rest_of_line ();
2697 }
2698
2699 /* Handle the .type directive, which gives the COFF type of the
2700 symbol. */
2701
2702 static void
2703 obj_ecoff_type (ignore)
2704 int ignore;
2705 {
2706 long val;
2707 tq_t *tq_ptr;
2708 tq_t *tq_shft;
2709
2710 if (coff_sym_name == (char *) NULL)
2711 {
2712 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2713 demand_empty_rest_of_line ();
2714 return;
2715 }
2716
2717 val = get_absolute_expression ();
2718
2719 coff_type.orig_type = BTYPE (val);
2720 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2721
2722 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2723 while (val &~ N_BTMASK)
2724 {
2725 if (tq_ptr == &coff_type.type_qualifiers[0])
2726 {
2727 as_warn ("Too derived values in .type argument");
2728 break;
2729 }
2730 if (ISPTR (val))
2731 *--tq_ptr = tq_Ptr;
2732 else if (ISFCN (val))
2733 *--tq_ptr = tq_Proc;
2734 else if (ISARY (val))
2735 *--tq_ptr = tq_Array;
2736 else
2737 as_fatal ("Unrecognized .type argument");
2738
2739 val = DECREF (val);
2740 }
2741
2742 tq_shft = &coff_type.type_qualifiers[0];
2743 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2744 *tq_shft++ = *tq_ptr++;
2745
2746 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2747 {
2748 /* If this is a function, ignore it, so that we don't get two
2749 entries (one from the .ent, and one for the .def that
2750 precedes it). Save the type information so that the end
2751 block can properly add it after the begin block index. For
2752 MIPS knows what reason, we must strip off the function type
2753 at this point. */
2754 coff_is_function = 1;
2755 tq_shft[-1] = tq_Nil;
2756 }
2757
2758 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2759 *tq_shft++ = tq_Nil;
2760
2761 demand_empty_rest_of_line ();
2762 }
2763
2764 /* Handle the .tag directive, which gives the name of a structure,
2765 union or enum. */
2766
2767 static void
2768 obj_ecoff_tag (ignore)
2769 int ignore;
2770 {
2771 char *name;
2772 char name_end;
2773
2774 if (coff_sym_name == (char *) NULL)
2775 {
2776 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2777 demand_empty_rest_of_line ();
2778 return;
2779 }
2780
2781 name = input_line_pointer;
2782 name_end = get_symbol_end ();
2783
2784 coff_tag = (char *) xmalloc (strlen (name) + 1);
2785 strcpy (coff_tag, name);
2786
2787 *input_line_pointer = name_end;
2788
2789 demand_empty_rest_of_line ();
2790 }
2791
2792 /* Handle the .val directive, which gives the value of the symbol. It
2793 may be the name of a static or global symbol. */
2794
2795 static void
2796 obj_ecoff_val (ignore)
2797 int ignore;
2798 {
2799 if (coff_sym_name == (char *) NULL)
2800 {
2801 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2802 demand_empty_rest_of_line ();
2803 return;
2804 }
2805
2806 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2807 coff_value = get_absolute_expression ();
2808 else
2809 {
2810 char *name;
2811 char name_end;
2812
2813 name = input_line_pointer;
2814 name_end = get_symbol_end ();
2815
2816 if (strcmp (name, ".") == 0)
2817 as_warn ("`.val .' not supported");
2818 else
2819 coff_sym_value = symbol_find_or_make (name);
2820
2821 *input_line_pointer = name_end;
2822
2823 /* FIXME: gcc can generate address expressions here in unusual
2824 cases (search for "obscure" in sdbout.c), although this is
2825 very unlikely for a MIPS chip. */
2826 }
2827
2828 demand_empty_rest_of_line ();
2829 }
2830
2831 /* Handle the .endef directive, which terminates processing of COFF
2832 debugging information for a symbol. */
2833
2834 static void
2835 obj_ecoff_endef (ignore)
2836 int ignore;
2837 {
2838 char *name;
2839 symint_t indx;
2840 localsym_t *sym;
2841
2842 demand_empty_rest_of_line ();
2843
2844 if (coff_sym_name == (char *) NULL)
2845 {
2846 as_warn (".endef pseudo-op used before .def; ignored");
2847 return;
2848 }
2849
2850 name = coff_sym_name;
2851 coff_sym_name = (char *) NULL;
2852
2853 /* If the symbol is a static or external, we have already gotten the
2854 appropriate type and class, so make sure we don't override those
2855 values. This is needed because there are some type and classes
2856 that are not in COFF, such as short data, etc. */
2857 if (coff_sym_value != (symbolS *) NULL)
2858 {
2859 coff_symbol_type = st_Nil;
2860 coff_storage_class = sc_Nil;
2861 }
2862
2863 coff_type.extra_sizes = coff_tag != (char *) NULL;
2864 if (coff_type.num_dims > 0)
2865 {
2866 int diff = coff_type.num_dims - coff_type.num_sizes;
2867 int i = coff_type.num_dims - 1;
2868 int j;
2869
2870 if (coff_type.num_sizes != 1 || diff < 0)
2871 {
2872 as_warn ("Bad COFF debugging info");
2873 return;
2874 }
2875
2876 /* If this is an array, make sure the same number of dimensions
2877 and sizes were passed, creating extra sizes for multiply
2878 dimensioned arrays if not passed. */
2879 coff_type.extra_sizes = 0;
2880 if (diff)
2881 {
2882 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2883 while (j >= 0)
2884 {
2885 coff_type.sizes[j] = (((j - diff) >= 0)
2886 ? coff_type.sizes[j - diff]
2887 : 0);
2888 j--;
2889 }
2890
2891 coff_type.num_sizes = i + 1;
2892 for (i--; i >= 0; i--)
2893 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2894 / coff_type.dimensions[i + 1]);
2895 }
2896 }
2897 else if (coff_symbol_type == st_Member
2898 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2899 {
2900 /* Is this a bitfield? This is indicated by a structure memeber
2901 having a size field that isn't an array. */
2902 coff_type.bitfield = 1;
2903 }
2904
2905 /* Except for enumeration members & begin/ending of scopes, put the
2906 type word in the aux. symbol table. */
2907 if (coff_symbol_type == st_Block || coff_symbol_type == st_End)
2908 indx = 0;
2909 else if (coff_inside_enumeration)
2910 indx = cur_file_ptr->void_type;
2911 else
2912 {
2913 if (coff_type.basic_type == bt_Struct
2914 || coff_type.basic_type == bt_Union
2915 || coff_type.basic_type == bt_Enum)
2916 {
2917 if (coff_tag == (char *) NULL)
2918 {
2919 as_warn ("No tag specified for %s", name);
2920 return;
2921 }
2922
2923 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2924 coff_type.basic_type);
2925 }
2926
2927 if (coff_is_function)
2928 {
2929 last_func_type_info = coff_type;
2930 last_func_sym_value = coff_sym_value;
2931 return;
2932 }
2933
2934 indx = add_aux_sym_tir (&coff_type,
2935 hash_yes,
2936 &cur_file_ptr->thash_head[0]);
2937 }
2938
2939 /* Do any last minute adjustments that are necessary. */
2940 switch (coff_symbol_type)
2941 {
2942 default:
2943 break;
2944
2945 /* For the beginning of structs, unions, and enumerations, the
2946 size info needs to be passed in the value field. */
2947 case st_Block:
2948 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2949 != 1)
2950 {
2951 as_warn ("Bad COFF debugging information");
2952 return;
2953 }
2954 else
2955 coff_value = coff_type.sizes[0];
2956
2957 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2958 break;
2959
2960 /* For the end of structs, unions, and enumerations, omit the
2961 name which is always ".eos". This needs to be done last, so
2962 that any error reporting above gives the correct name. */
2963 case st_End:
2964 free (name);
2965 name = (char *) NULL;
2966 coff_value = 0;
2967 coff_inside_enumeration = 0;
2968 break;
2969
2970 /* Members of structures and unions that aren't bitfields, need
2971 to adjust the value from a byte offset to a bit offset.
2972 Members of enumerations do not have the value adjusted, and
2973 can be distinguished by indx == indexNil. For enumerations,
2974 update the maximum enumeration value. */
2975 case st_Member:
2976 if (! coff_type.bitfield && ! coff_inside_enumeration)
2977 coff_value *= 8;
2978
2979 break;
2980 }
2981
2982 /* Add the symbol. */
2983 sym = add_ecoff_symbol (name,
2984 coff_symbol_type,
2985 coff_storage_class,
2986 coff_sym_value,
2987 coff_value,
2988 indx);
2989
2990 /* deal with struct, union, and enum tags. */
2991 if (coff_symbol_type == st_Block)
2992 {
2993 /* Create or update the tag information. */
2994 tag_t *tag_ptr = get_tag (name,
2995 sym,
2996 coff_type.basic_type);
2997 forward_t **pf;
2998
2999 /* Remember any forward references. */
3000 for (pf = &sym->forward_ref;
3001 *pf != (forward_t *) NULL;
3002 pf = &(*pf)->next)
3003 ;
3004 *pf = tag_ptr->forward_ref;
3005 tag_ptr->forward_ref = (forward_t *) NULL;
3006 }
3007 }
3008 \f
3009 /* Parse .end directives. */
3010
3011 static void
3012 obj_ecoff_end (ignore)
3013 int ignore;
3014 {
3015 char *name;
3016 char name_end;
3017 register int ch;
3018 symbolS *ent;
3019
3020 if (cur_file_ptr == (efdr_t *) NULL)
3021 {
3022 as_warn (".end directive without a preceding .file directive");
3023 demand_empty_rest_of_line ();
3024 return;
3025 }
3026
3027 if (cur_proc_ptr == (proc_t *) NULL)
3028 {
3029 as_warn (".end directive without a preceding .ent directive");
3030 demand_empty_rest_of_line ();
3031 return;
3032 }
3033
3034 name = input_line_pointer;
3035 name_end = get_symbol_end ();
3036
3037 ch = *name;
3038 if (! is_name_beginner (ch))
3039 {
3040 as_warn (".end directive has no name");
3041 *input_line_pointer = name_end;
3042 demand_empty_rest_of_line ();
3043 return;
3044 }
3045
3046 /* The value is the distance between the .end directive and the
3047 corresponding symbol. We create a fake symbol to hold the
3048 current location, and put in the offset when we write out the
3049 symbol. */
3050 ent = symbol_find (name);
3051 if (ent == (symbolS *) NULL)
3052 as_warn (".end directive names unknown symbol");
3053 else
3054 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3055 symbol_new ("L0\001", now_seg,
3056 frag_now_fix (), frag_now),
3057 (symint_t) 0, (symint_t) 0);
3058
3059 cur_proc_ptr = (proc_t *) NULL;
3060
3061 *input_line_pointer = name_end;
3062 demand_empty_rest_of_line ();
3063 }
3064 \f
3065 /* Parse .ent directives. */
3066
3067 static void
3068 obj_ecoff_ent (ignore)
3069 int ignore;
3070 {
3071 char *name;
3072 char name_end;
3073 register int ch;
3074
3075 if (cur_file_ptr == (efdr_t *) NULL)
3076 add_file ((const char *) NULL, 0);
3077
3078 if (cur_proc_ptr != (proc_t *) NULL)
3079 {
3080 as_warn ("second .ent directive found before .end directive");
3081 demand_empty_rest_of_line ();
3082 return;
3083 }
3084
3085 name = input_line_pointer;
3086 name_end = get_symbol_end ();
3087
3088 ch = *name;
3089 if (! is_name_beginner (ch))
3090 {
3091 as_warn (".ent directive has no name");
3092 *input_line_pointer = name_end;
3093 demand_empty_rest_of_line ();
3094 return;
3095 }
3096
3097 add_procedure (name);
3098
3099 *input_line_pointer = name_end;
3100 demand_empty_rest_of_line ();
3101 }
3102 \f
3103 /* Parse .file directives. */
3104
3105 static void
3106 obj_ecoff_file (ignore)
3107 int ignore;
3108 {
3109 int indx;
3110 char *name;
3111 int len;
3112
3113 if (cur_proc_ptr != (proc_t *) NULL)
3114 {
3115 as_warn ("No way to handle .file within .ent/.end section");
3116 demand_empty_rest_of_line ();
3117 return;
3118 }
3119
3120 indx = (int) get_absolute_expression ();
3121
3122 /* FIXME: we don't have to save the name here. */
3123 name = demand_copy_C_string (&len);
3124
3125 add_file (name, indx - 1);
3126
3127 demand_empty_rest_of_line ();
3128 }
3129 \f
3130 /* Parse .fmask directives. */
3131
3132 static void
3133 obj_ecoff_fmask (ignore)
3134 int ignore;
3135 {
3136 long val;
3137
3138 if (cur_proc_ptr == (proc_t *) NULL)
3139 {
3140 as_warn (".fmask outside of .ent");
3141 demand_empty_rest_of_line ();
3142 return;
3143 }
3144
3145 if (get_absolute_expression_and_terminator (&val) != ',')
3146 {
3147 as_warn ("Bad .fmask directive");
3148 --input_line_pointer;
3149 demand_empty_rest_of_line ();
3150 return;
3151 }
3152
3153 cur_proc_ptr->pdr.fregmask = val;
3154 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3155
3156 demand_empty_rest_of_line ();
3157 }
3158 \f
3159 /* Parse .frame directives. */
3160
3161 static void
3162 obj_ecoff_frame (ignore)
3163 int ignore;
3164 {
3165 long val;
3166
3167 if (cur_proc_ptr == (proc_t *) NULL)
3168 {
3169 as_warn (".frame outside of .ent");
3170 demand_empty_rest_of_line ();
3171 return;
3172 }
3173
3174 cur_proc_ptr->pdr.framereg = tc_get_register ();
3175
3176 SKIP_WHITESPACE ();
3177 if (*input_line_pointer++ != ','
3178 || get_absolute_expression_and_terminator (&val) != ',')
3179 {
3180 as_warn ("Bad .frame directive");
3181 --input_line_pointer;
3182 demand_empty_rest_of_line ();
3183 return;
3184 }
3185
3186 cur_proc_ptr->pdr.frameoffset = val;
3187
3188 cur_proc_ptr->pdr.pcreg = tc_get_register ();
3189
3190 demand_empty_rest_of_line ();
3191 }
3192 \f
3193 /* Parse .mask directives. */
3194
3195 static void
3196 obj_ecoff_mask (ignore)
3197 int ignore;
3198 {
3199 long val;
3200
3201 if (cur_proc_ptr == (proc_t *) NULL)
3202 {
3203 as_warn (".mask outside of .ent");
3204 demand_empty_rest_of_line ();
3205 return;
3206 }
3207
3208 if (get_absolute_expression_and_terminator (&val) != ',')
3209 {
3210 as_warn ("Bad .mask directive");
3211 --input_line_pointer;
3212 demand_empty_rest_of_line ();
3213 return;
3214 }
3215
3216 cur_proc_ptr->pdr.regmask = val;
3217 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3218
3219 demand_empty_rest_of_line ();
3220 }
3221 \f
3222 /* Parse .loc directives. */
3223
3224 static void
3225 obj_ecoff_loc (ignore)
3226 int ignore;
3227 {
3228 lineno_list_t *list;
3229 int lineno;
3230
3231 if (cur_file_ptr == (efdr_t *) NULL)
3232 {
3233 as_warn (".loc before .file");
3234 demand_empty_rest_of_line ();
3235 return;
3236 }
3237
3238 if (now_seg != text_section)
3239 {
3240 as_warn (".loc outside of .text");
3241 demand_empty_rest_of_line ();
3242 return;
3243 }
3244
3245 /* Skip the file number. */
3246 SKIP_WHITESPACE ();
3247 get_absolute_expression ();
3248 SKIP_WHITESPACE ();
3249
3250 lineno = get_absolute_expression ();
3251
3252 #ifndef NO_LISTING
3253 if (listing)
3254 listing_source_line (lineno);
3255 #endif
3256
3257 /* If we're building stabs, then output a special label rather than
3258 ECOFF line number info. */
3259 if (stabs_seen)
3260 {
3261 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3262 symbol_new ("L0\001", now_seg,
3263 frag_now_fix (), frag_now),
3264 0, lineno);
3265 return;
3266 }
3267
3268 list = allocate_lineno_list ();
3269
3270 list->next = (lineno_list_t *) NULL;
3271 list->file = cur_file_ptr;
3272 list->proc = cur_proc_ptr;
3273 list->frag = frag_now;
3274 list->paddr = frag_now_fix ();
3275 list->lineno = lineno;
3276
3277 /* A .loc directive will sometimes appear before a .ent directive,
3278 which means that cur_proc_ptr will be NULL here. Arrange to
3279 patch this up. */
3280 if (cur_proc_ptr == (proc_t *) NULL)
3281 {
3282 lineno_list_t **pl;
3283
3284 pl = &noproc_lineno;
3285 while (*pl != (lineno_list_t *) NULL)
3286 pl = &(*pl)->next;
3287 *pl = list;
3288 }
3289 else
3290 {
3291 *last_lineno_ptr = list;
3292 last_lineno_ptr = &list->next;
3293 }
3294 }
3295 \f
3296 /* Make sure the @stabs symbol is emitted. */
3297
3298 static void
3299 mark_stabs (ignore)
3300 int ignore;
3301 {
3302 if (! stabs_seen)
3303 {
3304 /* Add a dummy @stabs dymbol. */
3305 stabs_seen = 1;
3306 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3307 (symbolS *) NULL,
3308 (symint_t) -1, MIPS_MARK_STAB (0));
3309 }
3310 }
3311 \f
3312 /* Parse .stabs directives.
3313
3314 .stabs directives have five fields:
3315 "string" a string, encoding the type information.
3316 code a numeric code, defined in <stab.h>
3317 0 a zero
3318 0 a zero or line number
3319 value a numeric value or an address.
3320
3321 If the value is relocatable, we transform this into:
3322 iss points as an index into string space
3323 value value from lookup of the name
3324 st st from lookup of the name
3325 sc sc from lookup of the name
3326 index code|CODE_MASK
3327
3328 If the value is not relocatable, we transform this into:
3329 iss points as an index into string space
3330 value value
3331 st st_Nil
3332 sc sc_Nil
3333 index code|CODE_MASK
3334
3335 .stabn directives have four fields (string is null):
3336 code a numeric code, defined in <stab.h>
3337 0 a zero
3338 0 a zero or a line number
3339 value a numeric value or an address. */
3340
3341 static void
3342 obj_ecoff_stab (type)
3343 int type;
3344 {
3345 char *string;
3346 efdr_t *save_file_ptr = cur_file_ptr;
3347 symint_t code;
3348 symint_t value;
3349 symbolS *sym;
3350 st_t st;
3351 sc_t sc;
3352
3353 if (cur_file_ptr == (efdr_t *) NULL)
3354 {
3355 add_file ((const char *) NULL, 0);
3356 save_file_ptr = cur_file_ptr;
3357 }
3358
3359 if (stabs_seen == 0)
3360 mark_stabs (0);
3361
3362 if (type != 's')
3363 string = (char *) NULL;
3364 else
3365 {
3366 int len;
3367
3368 string = demand_copy_C_string (&len);
3369 SKIP_WHITESPACE ();
3370 if (*input_line_pointer == ',')
3371 input_line_pointer++;
3372 else
3373 {
3374 as_warn ("Bad .stab%c directive", type);
3375 demand_empty_rest_of_line ();
3376 return;
3377 }
3378 }
3379
3380 code = (symint_t) get_absolute_expression ();
3381
3382 SKIP_WHITESPACE ();
3383 if (*input_line_pointer++ != ',')
3384 {
3385 as_warn ("Bad .stab%c directive", type);
3386 --input_line_pointer;
3387 demand_empty_rest_of_line ();
3388 return;
3389 }
3390
3391 if (get_absolute_expression () != 0)
3392 {
3393 as_warn ("Bad .stab%c directive (expected 0)", type);
3394 demand_empty_rest_of_line ();
3395 return;
3396 }
3397
3398 SKIP_WHITESPACE ();
3399 if (*input_line_pointer++ != ',')
3400 {
3401 as_warn ("Bad .stab%c directive", type);
3402 --input_line_pointer;
3403 demand_empty_rest_of_line ();
3404 return;
3405 }
3406
3407 /* Line number stabs are handled differently, since they have two values,
3408 the line number and the address of the label. We use the index field
3409 (aka code) to hold the line number, and the value field to hold the
3410 address. The symbol type is st_Label, which should be different from
3411 the other stabs, so that gdb can recognize it. */
3412 if (code == N_SLINE)
3413 {
3414 SYMR dummy_symr;
3415 char *name;
3416 char name_end;
3417
3418 code = (symint_t) get_absolute_expression ();
3419
3420 #ifndef NO_LISTING
3421 if (listing)
3422 listing_source_line (code);
3423 #endif
3424
3425 if (*input_line_pointer++ != ',')
3426 {
3427 as_warn ("Bad .stab%c directive", type);
3428 --input_line_pointer;
3429 demand_empty_rest_of_line ();
3430 return;
3431 }
3432
3433 dummy_symr.index = code;
3434 if (dummy_symr.index != code)
3435 {
3436 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3437 code, type);
3438 demand_empty_rest_of_line ();
3439 return;
3440 }
3441
3442 SKIP_WHITESPACE ();
3443 name = input_line_pointer;
3444 name_end = get_symbol_end ();
3445
3446 sym = symbol_find_or_make (name);
3447 *input_line_pointer = name_end;
3448
3449 value = 0;
3450 st = st_Label;
3451 sc = sc_Text;
3452 }
3453 else
3454 {
3455 #ifndef NO_LISTING
3456 if (listing && (code == N_SO || code == N_SOL))
3457 listing_source_file (string);
3458 #endif
3459
3460 /* The next number is sometimes the line number of the
3461 declaration. We have nowhere to put it, so we just ignore
3462 it. */
3463 (void) get_absolute_expression ();
3464
3465 SKIP_WHITESPACE ();
3466 if (*input_line_pointer++ != ',')
3467 {
3468 as_warn ("Bad .stab%c directive", type);
3469 --input_line_pointer;
3470 demand_empty_rest_of_line ();
3471 return;
3472 }
3473
3474 SKIP_WHITESPACE ();
3475 if (isdigit (*input_line_pointer)
3476 || *input_line_pointer == '-'
3477 || *input_line_pointer == '+')
3478 {
3479 st = st_Nil;
3480 sc = sc_Nil;
3481 sym = (symbolS *) NULL;
3482 value = get_absolute_expression ();
3483 }
3484 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3485 {
3486 as_warn ("Illegal .stab%c directive, bad character", type);
3487 demand_empty_rest_of_line ();
3488 return;
3489 }
3490 else
3491 {
3492 char *name;
3493 char name_end;
3494
3495 name = input_line_pointer;
3496 name_end = get_symbol_end ();
3497
3498 sym = symbol_find_or_make (name);
3499
3500 sc = sc_Nil;
3501 st = st_Nil;
3502 value = 0;
3503
3504 *input_line_pointer = name_end;
3505 if (name_end == '+' || name_end == '-')
3506 {
3507 ++input_line_pointer;
3508 value = get_absolute_expression ();
3509 if (name_end == '-')
3510 value = - value;
3511 }
3512 }
3513
3514 code = MIPS_MARK_STAB (code);
3515 }
3516
3517 (void) add_ecoff_symbol (string, st, sc, sym, value, code);
3518
3519 /* Restore normal file type. */
3520 cur_file_ptr = save_file_ptr;
3521 }
3522 \f
3523 /* Add bytes to the symbolic information buffer. */
3524
3525 static char *
3526 ecoff_add_bytes (buf, bufend, bufptr, need)
3527 char **buf;
3528 char **bufend;
3529 char *bufptr;
3530 long need;
3531 {
3532 unsigned long at;
3533 unsigned long want;
3534
3535 at = bufptr - *buf;
3536 need -= *bufend - bufptr;
3537 if (need < PAGE_SIZE)
3538 need = PAGE_SIZE;
3539 want = (*bufend - *buf) + need;
3540 *buf = xrealloc (*buf, want);
3541 *bufend = *buf + want;
3542 return *buf + at;
3543 }
3544
3545 /* Adjust the symbolic information buffer to a longword boundary. */
3546
3547 static long
3548 ecoff_longword_adjust (buf, bufend, offset, bufptrptr)
3549 char **buf;
3550 char **bufend;
3551 long offset;
3552 char **bufptrptr;
3553 {
3554 if ((offset & 3) != 0)
3555 {
3556 long add;
3557
3558 add = 4 - (offset & 3);
3559 if (*bufend - (*buf + offset) < add)
3560 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3561 memset (*buf + offset, 0, add);
3562 offset += add;
3563 if (bufptrptr != (char **) NULL)
3564 *bufptrptr = *buf + offset;
3565 }
3566
3567 return offset;
3568 }
3569
3570 /* Build the line number information. */
3571
3572 static long
3573 ecoff_build_lineno (buf, bufend, offset, linecntptr)
3574 char **buf;
3575 char **bufend;
3576 long offset;
3577 long *linecntptr;
3578 {
3579 char *bufptr;
3580 register lineno_list_t *l;
3581 lineno_list_t *last;
3582 efdr_t *file;
3583 proc_t *proc;
3584 long c;
3585 long iline;
3586 long totcount;
3587
3588 if (linecntptr != (long *) NULL)
3589 *linecntptr = 0;
3590
3591 bufptr = *buf + offset;
3592
3593 file = (efdr_t *) NULL;
3594 proc = (proc_t *) NULL;
3595 last = (lineno_list_t *) NULL;
3596 c = offset;
3597 iline = 0;
3598 totcount = 0;
3599 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3600 {
3601 long count;
3602 long delta;
3603
3604 /* Get the offset to the memory address of the next line number
3605 (in words). Do this first, so that we can skip ahead to the
3606 next useful line number entry. */
3607 if (l->next == (lineno_list_t *) NULL)
3608 count = 0;
3609 else
3610 {
3611 count = ((l->next->frag->fr_address + l->next->paddr
3612 - (l->frag->fr_address + l->paddr))
3613 >> 2);
3614 if (count <= 0)
3615 {
3616 /* Don't change last, so we still get the right delta. */
3617 continue;
3618 }
3619 }
3620
3621 if (l->file != file || l->proc != proc)
3622 {
3623 if (l->proc != proc && proc != (proc_t *) NULL)
3624 proc->pdr.lnHigh = last->lineno;
3625 if (l->file != file && file != (efdr_t *) NULL)
3626 {
3627 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3628 /* The cline field is ill-documented. This is a guess
3629 at the right value. */
3630 file->fdr.cline = totcount + count;
3631 if (linecntptr != (long *) NULL)
3632 *linecntptr += totcount + count;
3633 totcount = 0;
3634 }
3635
3636 if (l->file != file)
3637 {
3638 file = l->file;
3639 file->fdr.ilineBase = iline;
3640 file->fdr.cbLineOffset = c;
3641 }
3642 if (l->proc != proc)
3643 {
3644 proc = l->proc;
3645 if (proc != (proc_t *) NULL)
3646 {
3647 proc->pdr.lnLow = l->lineno;
3648 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3649 /* The iline field is ill-documented. This is a
3650 guess at the right value. */
3651 proc->pdr.iline = totcount;
3652 }
3653 }
3654
3655 last = (lineno_list_t *) NULL;
3656 }
3657
3658 totcount += count;
3659
3660 /* Get the offset to this line number. */
3661 if (last == (lineno_list_t *) NULL)
3662 delta = 0;
3663 else
3664 delta = l->lineno - last->lineno;
3665
3666 /* Put in the offset to this line number. */
3667 while (delta != 0)
3668 {
3669 int setcount;
3670
3671 /* 1 is added to each count read. */
3672 --count;
3673 /* We can only adjust the word count by up to 15 words at a
3674 time. */
3675 if (count <= 0x0f)
3676 {
3677 setcount = count;
3678 count = 0;
3679 }
3680 else
3681 {
3682 setcount = 0x0f;
3683 count -= 0x0f;
3684 }
3685 if (delta >= -7 && delta <= 7)
3686 {
3687 if (bufptr >= *bufend)
3688 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3689 *bufptr++ = setcount + (delta << 4);
3690 delta = 0;
3691 ++c;
3692 }
3693 else
3694 {
3695 int set;
3696
3697 if (*bufend - bufptr < 3)
3698 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3699 *bufptr++ = setcount + (8 << 4);
3700 if (delta < -0x8000)
3701 {
3702 set = -0x8000;
3703 delta += 0x8000;
3704 }
3705 else if (delta > 0x7fff)
3706 {
3707 set = 0x7fff;
3708 delta -= 0x7fff;
3709 }
3710 else
3711 {
3712 set = delta;
3713 delta = 0;
3714 }
3715 *bufptr++ = set >> 8;
3716 *bufptr++ = set & 0xffff;
3717 c += 3;
3718 }
3719 }
3720
3721 /* Finish adjusting the count. */
3722 while (count > 0)
3723 {
3724 if (bufptr >= *bufend)
3725 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3726 /* 1 is added to each count read. */
3727 --count;
3728 if (count > 0x0f)
3729 {
3730 *bufptr++ = 0x0f;
3731 count -= 0x0f;
3732 }
3733 else
3734 {
3735 *bufptr++ = count;
3736 count = 0;
3737 }
3738 ++c;
3739 }
3740
3741 ++iline;
3742 last = l;
3743 }
3744
3745 if (proc != (proc_t *) NULL)
3746 proc->pdr.lnHigh = last->lineno;
3747 if (file != (efdr_t *) NULL)
3748 {
3749 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3750 file->fdr.cline = totcount;
3751 }
3752
3753 if (linecntptr != (long *) NULL)
3754 *linecntptr += totcount;
3755
3756 c = ecoff_longword_adjust (buf, bufend, c, &bufptr);
3757
3758 return c;
3759 }
3760
3761 /* Build and swap out the symbols. */
3762
3763 static long
3764 ecoff_build_symbols (buf,
3765 bufend,
3766 offset,
3767 extbuf,
3768 extbufend,
3769 extoffset,
3770 ext_strings,
3771 ext_str_hash)
3772 char **buf;
3773 char **bufend;
3774 long offset;
3775 char **extbuf;
3776 char **extbufend;
3777 long *extoffset;
3778 varray_t *ext_strings;
3779 struct hash_control *ext_str_hash;
3780 {
3781 struct sym_ext *sym_out;
3782 struct ext_ext *ext_out;
3783 long isym;
3784 long iext;
3785 vlinks_t *file_link;
3786
3787 sym_out = (struct sym_ext *) (*buf + offset);
3788 ext_out = (struct ext_ext *) (*extbuf + *extoffset);
3789
3790 isym = 0;
3791 iext = 0;
3792
3793 /* The symbols are stored by file. */
3794 for (file_link = file_desc.first;
3795 file_link != (vlinks_t *) NULL;
3796 file_link = file_link->next)
3797 {
3798 int ifilesym;
3799 int fil_cnt;
3800 efdr_t *fil_ptr;
3801 efdr_t *fil_end;
3802
3803 if (file_link->next == (vlinks_t *) NULL)
3804 fil_cnt = file_desc.objects_last_page;
3805 else
3806 fil_cnt = file_desc.objects_per_page;
3807 fil_ptr = file_link->datum->file;
3808 fil_end = fil_ptr + fil_cnt;
3809 for (; fil_ptr < fil_end; fil_ptr++)
3810 {
3811 vlinks_t *sym_link;
3812
3813 fil_ptr->fdr.isymBase = isym;
3814 ifilesym = isym;
3815 for (sym_link = fil_ptr->symbols.first;
3816 sym_link != (vlinks_t *) NULL;
3817 sym_link = sym_link->next)
3818 {
3819 int sym_cnt;
3820 localsym_t *sym_ptr;
3821 localsym_t *sym_end;
3822
3823 if (sym_link->next == (vlinks_t *) NULL)
3824 sym_cnt = fil_ptr->symbols.objects_last_page;
3825 else
3826 sym_cnt = fil_ptr->symbols.objects_per_page;
3827 sym_ptr = sym_link->datum->sym;
3828 sym_end = sym_ptr + sym_cnt;
3829 for (; sym_ptr < sym_end; sym_ptr++)
3830 {
3831 int local;
3832 symbolS *as_sym;
3833 forward_t *f;
3834
3835 know (sym_ptr->file_ptr == fil_ptr);
3836
3837 /* If there is no associated gas symbol, then this
3838 is a pure debugging symbol. We have already
3839 added the name (if any) to fil_ptr->strings.
3840 Otherwise we must decide whether this is an
3841 external or a local symbol (actually, it may be
3842 both if the local provides additional debugging
3843 information for the external). */
3844 local = 1;
3845 as_sym = sym_ptr->as_sym;
3846 if (as_sym != (symbolS *) NULL)
3847 {
3848 symint_t indx;
3849
3850 /* The value of a block start symbol is the
3851 offset from the start of the procedure. For
3852 other symbols we just use the gas value (but
3853 we must offset it by the vma of the section,
3854 just as BFD does, because BFD will not see
3855 this value). */
3856 if (sym_ptr->ecoff_sym.st == (int) st_Block
3857 && sym_ptr->ecoff_sym.sc == (int) sc_Text)
3858 {
3859 symbolS *begin_sym;
3860
3861 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3862 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3863 if (S_GET_SEGMENT (as_sym)
3864 != S_GET_SEGMENT (begin_sym))
3865 as_warn (".begin/.bend in different segments");
3866 sym_ptr->ecoff_sym.value =
3867 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3868 }
3869 else
3870 sym_ptr->ecoff_sym.value =
3871 (S_GET_VALUE (as_sym)
3872 + bfd_get_section_vma (stdoutput,
3873 S_GET_SEGMENT (as_sym)));
3874
3875 /* Set st_Proc to st_StaticProc for local
3876 functions. */
3877 if (sym_ptr->ecoff_sym.st == st_Proc
3878 && S_IS_DEFINED (as_sym)
3879 && ! S_IS_EXTERNAL (as_sym))
3880 sym_ptr->ecoff_sym.st = st_StaticProc;
3881
3882 /* Get the type and storage class based on where
3883 the symbol actually wound up. Traditionally,
3884 N_LBRAC and N_RBRAC are *not* relocated. */
3885 indx = sym_ptr->ecoff_sym.index;
3886 if (sym_ptr->ecoff_sym.st == st_Nil
3887 && sym_ptr->ecoff_sym.sc == sc_Nil
3888 && (! MIPS_IS_STAB (&sym_ptr->ecoff_sym)
3889 || ((MIPS_UNMARK_STAB (indx) != N_LBRAC)
3890 && (MIPS_UNMARK_STAB (indx) != N_RBRAC))))
3891 {
3892 segT seg;
3893 const char *segname;
3894 st_t st;
3895 sc_t sc;
3896
3897 seg = S_GET_SEGMENT (as_sym);
3898 segname = segment_name (seg);
3899
3900 if (S_IS_EXTERNAL (as_sym)
3901 || ! S_IS_DEFINED (as_sym))
3902 st = st_Global;
3903 else if (seg == text_section)
3904 st = st_Label;
3905 else
3906 st = st_Static;
3907
3908 if (! S_IS_DEFINED (as_sym)
3909 || as_sym->ecoff_undefined)
3910 {
3911 if (S_GET_VALUE (as_sym) > 0
3912 && (S_GET_VALUE (as_sym)
3913 <= bfd_get_gp_size (stdoutput)))
3914 sc = sc_SUndefined;
3915 else
3916 sc = sc_Undefined;
3917 }
3918 else if (S_IS_COMMON (as_sym))
3919 {
3920 if (S_GET_VALUE (as_sym) > 0
3921 && (S_GET_VALUE (as_sym)
3922 <= bfd_get_gp_size (stdoutput)))
3923 sc = sc_SCommon;
3924 else
3925 sc = sc_Common;
3926 }
3927 else if (seg == text_section)
3928 sc = sc_Text;
3929 else if (seg == data_section)
3930 sc = sc_Data;
3931 else if (strcmp (segname, ".rdata") == 0)
3932 sc = sc_RData;
3933 else if (strcmp (segname, ".sdata") == 0)
3934 sc = sc_SData;
3935 else if (seg == bss_section)
3936 sc = sc_Bss;
3937 else if (strcmp (segname, ".sbss") == 0)
3938 sc = sc_SBss;
3939 else if (seg == &bfd_abs_section)
3940 sc = sc_Abs;
3941 else
3942 abort ();
3943
3944 sym_ptr->ecoff_sym.st = (int) st;
3945 sym_ptr->ecoff_sym.sc = (int) sc;
3946 }
3947
3948 /* This is just an external symbol if it is
3949 outside a procedure and it has a type.
3950 FIXME: g++ will generate symbols which have
3951 different names in the debugging information
3952 than the actual symbol. Should we handle
3953 them here? */
3954 if ((S_IS_EXTERNAL (as_sym)
3955 || ! S_IS_DEFINED (as_sym))
3956 && sym_ptr->proc_ptr == (proc_t *) NULL
3957 && sym_ptr->ecoff_sym.st != (int) st_Nil
3958 && ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
3959 local = 0;
3960
3961 /* If an st_end symbol has an associated gas
3962 symbol, then it is a local label created for
3963 a .bend or .end directive. Stabs line
3964 numbers will have \001 in the names. */
3965 if (local
3966 && sym_ptr->ecoff_sym.st != st_End
3967 && strchr (sym_ptr->name, '\001') == 0)
3968 sym_ptr->ecoff_sym.iss =
3969 add_string (&fil_ptr->strings,
3970 fil_ptr->str_hash,
3971 sym_ptr->name,
3972 (shash_t **) NULL);
3973 }
3974
3975 /* We now know the index of this symbol; fill in
3976 locations that have been waiting for that
3977 information. */
3978 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3979 {
3980 localsym_t *begin_ptr;
3981 st_t begin_type;
3982
3983 know (local);
3984 begin_ptr = sym_ptr->begin_ptr;
3985 know (begin_ptr->sym_index != -1);
3986 sym_ptr->ecoff_sym.index = begin_ptr->sym_index;
3987 if (sym_ptr->ecoff_sym.sc != (int) sc_Info)
3988 sym_ptr->ecoff_sym.iss = begin_ptr->ecoff_sym.iss;
3989
3990 begin_type = begin_ptr->ecoff_sym.st;
3991 if (begin_type == st_File
3992 || begin_type == st_Block)
3993 {
3994 begin_ptr->ecoff_sym.index = isym - ifilesym + 1;
3995 ecoff_swap_sym_out (stdoutput,
3996 &begin_ptr->ecoff_sym,
3997 (((struct sym_ext *)
3998 (*buf + offset))
3999 + begin_ptr->sym_index));
4000 }
4001 else
4002 {
4003 know (begin_ptr->index_ptr != (aux_t *) NULL);
4004 begin_ptr->index_ptr->data.isym =
4005 isym - ifilesym + 1;
4006 }
4007
4008 /* The value of the symbol marking the end of a
4009 procedure is the size of the procedure. The
4010 value of the symbol marking the end of a
4011 block is the offset from the start of the
4012 procedure to the block. */
4013 if (begin_type == st_Proc)
4014 {
4015 know (as_sym != (symbolS *) NULL);
4016 know (begin_ptr->as_sym != (symbolS *) NULL);
4017 if (S_GET_SEGMENT (as_sym)
4018 != S_GET_SEGMENT (begin_ptr->as_sym))
4019 as_warn (".begin/.bend in different segments");
4020 sym_ptr->ecoff_sym.value =
4021 (S_GET_VALUE (as_sym)
4022 - S_GET_VALUE (begin_ptr->as_sym));
4023 }
4024 else if (begin_type == st_Block
4025 && sym_ptr->ecoff_sym.sc != (int) sc_Info)
4026 {
4027 symbolS *begin_sym;
4028
4029 know (as_sym != (symbolS *) NULL);
4030 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4031 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4032 if (S_GET_SEGMENT (as_sym)
4033 != S_GET_SEGMENT (begin_sym))
4034 as_warn (".begin/.bend in different segments");
4035 sym_ptr->ecoff_sym.value =
4036 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4037 }
4038 }
4039
4040 for (f = sym_ptr->forward_ref;
4041 f != (forward_t *) NULL;
4042 f = f->next)
4043 {
4044 know (local);
4045 f->ifd_ptr->data.isym = fil_ptr->file_index;
4046 f->index_ptr->data.rndx.index = isym - ifilesym;
4047 }
4048
4049 if (local)
4050 {
4051 if (*bufend - (char *) sym_out < sizeof (struct sym_ext))
4052 sym_out = ((struct sym_ext *)
4053 ecoff_add_bytes (buf, bufend,
4054 (char *) sym_out,
4055 sizeof (struct sym_ext)));
4056 ecoff_swap_sym_out (stdoutput, &sym_ptr->ecoff_sym,
4057 sym_out);
4058 ++sym_out;
4059
4060 sym_ptr->sym_index = isym;
4061
4062 if (sym_ptr->proc_ptr != (proc_t *) NULL
4063 && sym_ptr->proc_ptr->sym == sym_ptr)
4064 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4065
4066 ++isym;
4067 }
4068
4069 /* If this is an external symbol, swap it out. */
4070 if (as_sym != (symbolS *) NULL
4071 && (S_IS_EXTERNAL (as_sym)
4072 || ! S_IS_DEFINED (as_sym))
4073 && ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
4074 {
4075 EXTR ext;
4076
4077 memset (&ext, 0, sizeof ext);
4078 ext.asym = sym_ptr->ecoff_sym;
4079 if (sym_ptr->ecoff_sym.st == st_Proc
4080 || sym_ptr->ecoff_sym.st == st_StaticProc)
4081 {
4082 know (local);
4083 ext.asym.index = isym - ifilesym - 1;
4084 }
4085 ext.ifd = fil_ptr->file_index;
4086 ext.asym.iss = add_string (ext_strings,
4087 ext_str_hash,
4088 S_GET_NAME (as_sym),
4089 (shash_t **) NULL);
4090 if (*extbufend - (char *) ext_out
4091 < sizeof (struct ext_ext))
4092 ext_out = ((struct ext_ext *)
4093 ecoff_add_bytes (extbuf, extbufend,
4094 (char *) ext_out,
4095 sizeof (struct ext_ext)));
4096 ecoff_swap_ext_out (stdoutput, &ext, ext_out);
4097 ecoff_set_sym_index (as_sym->bsym, iext);
4098 ++ext_out;
4099 ++iext;
4100 }
4101 }
4102 }
4103 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4104 }
4105 }
4106
4107 *extoffset += iext * sizeof (struct ext_ext);
4108 return offset + isym * sizeof (struct sym_ext);
4109 }
4110
4111 /* Swap out the procedure information. */
4112
4113 static long
4114 ecoff_build_procs (buf, bufend, offset)
4115 char **buf;
4116 char **bufend;
4117 long offset;
4118 {
4119 struct pdr_ext *pdr_out;
4120 int first_fil;
4121 long iproc;
4122 vlinks_t *file_link;
4123
4124 pdr_out = (struct pdr_ext *) (*buf + offset);
4125
4126 first_fil = 1;
4127 iproc = 0;
4128
4129 /* The procedures are stored by file. */
4130 for (file_link = file_desc.first;
4131 file_link != (vlinks_t *) NULL;
4132 file_link = file_link->next)
4133 {
4134 int fil_cnt;
4135 efdr_t *fil_ptr;
4136 efdr_t *fil_end;
4137
4138 if (file_link->next == (vlinks_t *) NULL)
4139 fil_cnt = file_desc.objects_last_page;
4140 else
4141 fil_cnt = file_desc.objects_per_page;
4142 fil_ptr = file_link->datum->file;
4143 fil_end = fil_ptr + fil_cnt;
4144 for (; fil_ptr < fil_end; fil_ptr++)
4145 {
4146 vlinks_t *proc_link;
4147 int first;
4148
4149 fil_ptr->fdr.ipdFirst = iproc;
4150 first = 1;
4151 for (proc_link = fil_ptr->procs.first;
4152 proc_link != (vlinks_t *) NULL;
4153 proc_link = proc_link->next)
4154 {
4155 int proc_cnt;
4156 proc_t *proc_ptr;
4157 proc_t *proc_end;
4158
4159 if (proc_link->next == (vlinks_t *) NULL)
4160 proc_cnt = fil_ptr->procs.objects_last_page;
4161 else
4162 proc_cnt = fil_ptr->procs.objects_per_page;
4163 proc_ptr = proc_link->datum->proc;
4164 proc_end = proc_ptr + proc_cnt;
4165 for (; proc_ptr < proc_end; proc_ptr++)
4166 {
4167 symbolS *adr_sym;
4168 unsigned long adr;
4169
4170 adr_sym = proc_ptr->sym->as_sym;
4171 adr = (S_GET_VALUE (adr_sym)
4172 + bfd_get_section_vma (stdoutput,
4173 S_GET_SEGMENT (adr_sym)));
4174 if (first)
4175 {
4176 if (first_fil)
4177 first_fil = 0;
4178 else
4179 fil_ptr->fdr.adr = adr;
4180 first = 0;
4181 }
4182 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4183 if (*bufend - (char *) pdr_out < sizeof (struct pdr_ext))
4184 pdr_out = ((struct pdr_ext *)
4185 ecoff_add_bytes (buf, bufend,
4186 (char *) pdr_out,
4187 sizeof (struct pdr_ext)));
4188 ecoff_swap_pdr_out (stdoutput, &proc_ptr->pdr, pdr_out);
4189 ++pdr_out;
4190 ++iproc;
4191 }
4192 }
4193 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4194 }
4195 }
4196
4197 return offset + iproc * sizeof (struct pdr_ext);
4198 }
4199
4200 /* Swap out the aux information. */
4201
4202 static long
4203 ecoff_build_aux (buf, bufend, offset)
4204 char **buf;
4205 char **bufend;
4206 long offset;
4207 {
4208 int bigendian;
4209 union aux_ext *aux_out;
4210 long iaux;
4211 vlinks_t *file_link;
4212
4213 bigendian = stdoutput->xvec->header_byteorder_big_p;
4214
4215 aux_out = (union aux_ext *) (*buf + offset);
4216
4217 iaux = 0;
4218
4219 /* The aux entries are stored by file. */
4220 for (file_link = file_desc.first;
4221 file_link != (vlinks_t *) NULL;
4222 file_link = file_link->next)
4223 {
4224 int fil_cnt;
4225 efdr_t *fil_ptr;
4226 efdr_t *fil_end;
4227
4228 if (file_link->next == (vlinks_t *) NULL)
4229 fil_cnt = file_desc.objects_last_page;
4230 else
4231 fil_cnt = file_desc.objects_per_page;
4232 fil_ptr = file_link->datum->file;
4233 fil_end = fil_ptr + fil_cnt;
4234 for (; fil_ptr < fil_end; fil_ptr++)
4235 {
4236 vlinks_t *aux_link;
4237
4238 fil_ptr->fdr.fBigendian = bigendian;
4239 fil_ptr->fdr.iauxBase = iaux;
4240 for (aux_link = fil_ptr->aux_syms.first;
4241 aux_link != (vlinks_t *) NULL;
4242 aux_link = aux_link->next)
4243 {
4244 int aux_cnt;
4245 aux_t *aux_ptr;
4246 aux_t *aux_end;
4247
4248 if (aux_link->next == (vlinks_t *) NULL)
4249 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4250 else
4251 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4252 aux_ptr = aux_link->datum->aux;
4253 aux_end = aux_ptr + aux_cnt;
4254 for (; aux_ptr < aux_end; aux_ptr++)
4255 {
4256 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4257 aux_out = ((union aux_ext *)
4258 ecoff_add_bytes (buf, bufend,
4259 (char *) aux_out,
4260 sizeof (union aux_ext)));
4261 switch (aux_ptr->type)
4262 {
4263 case aux_tir:
4264 ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
4265 &aux_out->a_ti);
4266 break;
4267 case aux_rndx:
4268 ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
4269 &aux_out->a_rndx);
4270 break;
4271 case aux_dnLow:
4272 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4273 aux_out);
4274 break;
4275 case aux_dnHigh:
4276 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4277 aux_out);
4278 break;
4279 case aux_isym:
4280 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4281 aux_out);
4282 break;
4283 case aux_iss:
4284 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4285 aux_out);
4286 break;
4287 case aux_width:
4288 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4289 aux_out);
4290 break;
4291 case aux_count:
4292 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4293 aux_out);
4294 break;
4295 }
4296
4297 ++aux_out;
4298 ++iaux;
4299 }
4300 }
4301 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4302 }
4303 }
4304
4305 return offset + iaux * sizeof (union aux_ext);
4306 }
4307
4308 /* Copy out the strings from a varray_t. This returns the number of
4309 bytes copied, rather than the new offset. */
4310
4311 static long
4312 ecoff_build_strings (buf, bufend, offset, vp)
4313 char **buf;
4314 char **bufend;
4315 long offset;
4316 varray_t *vp;
4317 {
4318 long istr;
4319 char *str_out;
4320 vlinks_t *str_link;
4321
4322 str_out = *buf + offset;
4323
4324 istr = 0;
4325
4326 for (str_link = vp->first;
4327 str_link != (vlinks_t *) NULL;
4328 str_link = str_link->next)
4329 {
4330 long str_cnt;
4331
4332 if (str_link->next == (vlinks_t *) NULL)
4333 str_cnt = vp->objects_last_page;
4334 else
4335 str_cnt = vp->objects_per_page;
4336
4337 if (*bufend - str_out < str_cnt)
4338 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4339
4340 memcpy (str_out, str_link->datum->byte, str_cnt);
4341 str_out += str_cnt;
4342 istr += str_cnt;
4343 }
4344
4345 return istr;
4346 }
4347
4348 /* Dump out the local strings. */
4349
4350 static long
4351 ecoff_build_ss (buf, bufend, offset)
4352 char **buf;
4353 char **bufend;
4354 long offset;
4355 {
4356 long iss;
4357 vlinks_t *file_link;
4358
4359 iss = 0;
4360
4361 for (file_link = file_desc.first;
4362 file_link != (vlinks_t *) NULL;
4363 file_link = file_link->next)
4364 {
4365 int fil_cnt;
4366 efdr_t *fil_ptr;
4367 efdr_t *fil_end;
4368
4369 if (file_link->next == (vlinks_t *) NULL)
4370 fil_cnt = file_desc.objects_last_page;
4371 else
4372 fil_cnt = file_desc.objects_per_page;
4373 fil_ptr = file_link->datum->file;
4374 fil_end = fil_ptr + fil_cnt;
4375 for (; fil_ptr < fil_end; fil_ptr++)
4376 {
4377 long ss_cnt;
4378
4379 fil_ptr->fdr.issBase = iss;
4380 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4381 &fil_ptr->strings);
4382 fil_ptr->fdr.cbSs = ss_cnt;
4383 iss += ss_cnt;
4384 }
4385 }
4386
4387 return ecoff_longword_adjust (buf, bufend, offset + iss, (char **) NULL);
4388 }
4389
4390 /* Swap out the file descriptors. */
4391
4392 static long
4393 ecoff_build_fdr (buf, bufend, offset)
4394 char **buf;
4395 char **bufend;
4396 long offset;
4397 {
4398 long ifile;
4399 struct fdr_ext *fdr_out;
4400 vlinks_t *file_link;
4401
4402 ifile = 0;
4403
4404 fdr_out = (struct fdr_ext *) (*buf + offset);
4405
4406 for (file_link = file_desc.first;
4407 file_link != (vlinks_t *) NULL;
4408 file_link = file_link->next)
4409 {
4410 int fil_cnt;
4411 efdr_t *fil_ptr;
4412 efdr_t *fil_end;
4413
4414 if (file_link->next == (vlinks_t *) NULL)
4415 fil_cnt = file_desc.objects_last_page;
4416 else
4417 fil_cnt = file_desc.objects_per_page;
4418 fil_ptr = file_link->datum->file;
4419 fil_end = fil_ptr + fil_cnt;
4420 for (; fil_ptr < fil_end; fil_ptr++)
4421 {
4422 if (*bufend - (char *) fdr_out < sizeof (struct fdr_ext))
4423 fdr_out = ((struct fdr_ext *)
4424 ecoff_add_bytes (buf, bufend, (char *) fdr_out,
4425 sizeof (struct fdr_ext)));
4426 ecoff_swap_fdr_out (stdoutput, &fil_ptr->fdr, fdr_out);
4427 ++fdr_out;
4428 ++ifile;
4429 }
4430 }
4431
4432 return offset + ifile * sizeof (struct fdr_ext);
4433 }
4434
4435 /* Swap out the symbols and debugging information for BFD. */
4436
4437 void
4438 ecoff_frob_file ()
4439 {
4440 tag_t *ptag;
4441 tag_t *ptag_next;
4442 efdr_t *fil_ptr;
4443 int end_warning;
4444 efdr_t *hold_file_ptr;
4445 proc_t * hold_proc_ptr;
4446 bfd_vma addr;
4447 asection *sec;
4448 symbolS *sym;
4449 HDRR *hdr;
4450 char *buf;
4451 char *bufend;
4452 long offset;
4453 char *extbuf;
4454 char *extbufend;
4455 long extoffset;
4456 varray_t ext_strings;
4457 static varray_t init_ext_strings = INIT_VARRAY (char);
4458 struct hash_control *ext_str_hash;
4459 char *set;
4460
4461 /* Make sure we have a file. */
4462 if (first_file == (efdr_t *) NULL)
4463 add_file ((const char *) NULL, 0);
4464
4465 /* Handle any top level tags. */
4466 for (ptag = top_tag_head->first_tag;
4467 ptag != (tag_t *) NULL;
4468 ptag = ptag_next)
4469 {
4470 if (ptag->forward_ref != (forward_t *) NULL)
4471 add_unknown_tag (ptag);
4472
4473 ptag_next = ptag->same_block;
4474 ptag->hash_ptr->tag_ptr = ptag->same_name;
4475 free_tag (ptag);
4476 }
4477
4478 free_thead (top_tag_head);
4479
4480 /* Output an ending symbol for all the files. We have to do this
4481 here for the last file, so we may as well do it for all of the
4482 files. */
4483 end_warning = 0;
4484 for (fil_ptr = first_file;
4485 fil_ptr != (efdr_t *) NULL;
4486 fil_ptr = fil_ptr->next_file)
4487 {
4488 cur_file_ptr = fil_ptr;
4489 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4490 {
4491 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4492 if (! end_warning)
4493 {
4494 as_warn ("Missing .end or .bend at end of file");
4495 end_warning = 1;
4496 }
4497 }
4498 (void) add_ecoff_symbol ((const char *) NULL,
4499 st_End, sc_Text,
4500 (symbolS *) NULL,
4501 (symint_t) 0,
4502 (symint_t) 0);
4503 }
4504
4505 /* Set the section VMA values. */
4506 addr = 0;
4507 for (sec = stdoutput->sections; sec != (asection *) NULL; sec = sec->next)
4508 {
4509 bfd_set_section_vma (stdoutput, sec, addr);
4510 addr += bfd_section_size (stdoutput, sec);
4511 }
4512
4513 /* Look through the symbols. Add debugging information for each
4514 symbol that has not already received it. */
4515 hold_file_ptr = cur_file_ptr;
4516 hold_proc_ptr = cur_proc_ptr;
4517 cur_proc_ptr = (proc_t *) NULL;
4518 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4519 {
4520 if (sym->ecoff_symbol
4521 || sym->ecoff_file == (efdr_t *) NULL
4522 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4523 continue;
4524
4525 cur_file_ptr = sym->ecoff_file;
4526 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4527 S_GET_VALUE (sym), indexNil);
4528 }
4529 cur_proc_ptr = hold_proc_ptr;
4530 cur_file_ptr = hold_file_ptr;
4531
4532 /* Build the symbolic information. */
4533 hdr = &ecoff_data (stdoutput)->symbolic_header;
4534 offset = 0;
4535 buf = xmalloc (PAGE_SIZE);
4536 bufend = buf + PAGE_SIZE;
4537
4538 /* Build the line number information. */
4539 hdr->cbLineOffset = offset;
4540 offset = ecoff_build_lineno (&buf, &bufend, offset, &hdr->ilineMax);
4541 hdr->cbLine = offset - hdr->cbLineOffset;
4542
4543 /* We don't use dense numbers at all. */
4544 hdr->idnMax = 0;
4545 hdr->cbDnOffset = 0;
4546
4547 /* We can't build the PDR table until we have built the symbols,
4548 because a PDR contains a symbol index. However, we set aside
4549 space at this point. */
4550 hdr->ipdMax = proc_cnt;
4551 hdr->cbPdOffset = offset;
4552 if (bufend - (buf + offset) < proc_cnt * sizeof (struct pdr_ext))
4553 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4554 proc_cnt * sizeof (struct pdr_ext));
4555 offset += proc_cnt * sizeof (struct pdr_ext);
4556
4557 /* Build the symbols. It's convenient to build both the local and
4558 external symbols at the same time. We can put the local symbols
4559 directly into the buffer, but we have to hold the external
4560 symbols apart until we know where they are going to go. */
4561 extbuf = xmalloc (PAGE_SIZE);
4562 extbufend = extbuf + PAGE_SIZE;
4563 extoffset = 0;
4564 ext_strings = init_ext_strings;
4565 ext_str_hash = hash_new ();
4566 hdr->cbSymOffset = offset;
4567 offset = ecoff_build_symbols (&buf, &bufend, offset,
4568 &extbuf, &extbufend, &extoffset,
4569 &ext_strings, ext_str_hash);
4570 hdr->isymMax = (offset - hdr->cbSymOffset) / sizeof (struct sym_ext);
4571
4572 /* Building the symbols initializes the symbol index in the PDR's.
4573 Now we can swap out the PDR's. */
4574 (void) ecoff_build_procs (&buf, &bufend, hdr->cbPdOffset);
4575
4576 /* We don't use optimization symbols. */
4577 hdr->ioptMax = 0;
4578 hdr->cbOptOffset = 0;
4579
4580 /* Swap out the auxiliary type information. */
4581 hdr->cbAuxOffset = offset;
4582 offset = ecoff_build_aux (&buf, &bufend, offset);
4583 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4584
4585 /* Copy out the local strings. */
4586 hdr->cbSsOffset = offset;
4587 offset = ecoff_build_ss (&buf, &bufend, offset);
4588 hdr->issMax = offset - hdr->cbSsOffset;
4589
4590 /* Copy out the external strings. */
4591 hdr->cbSsExtOffset = offset;
4592 offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
4593 offset = ecoff_longword_adjust (&buf, &bufend, offset, (char **) NULL);
4594 hdr->issExtMax = offset - hdr->cbSsExtOffset;
4595
4596 /* We don't use relative file descriptors. */
4597 hdr->crfd = 0;
4598 hdr->cbRfdOffset = 0;
4599
4600 /* Swap out the file descriptors. */
4601 hdr->cbFdOffset = offset;
4602 offset = ecoff_build_fdr (&buf, &bufend, offset);
4603 hdr->ifdMax = (offset - hdr->cbFdOffset) / sizeof (struct fdr_ext);
4604
4605 /* Copy out the external symbols. */
4606 hdr->cbExtOffset = offset;
4607 if (bufend - (buf + offset) < extoffset)
4608 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
4609 memcpy (buf + offset, extbuf, extoffset);
4610 offset += extoffset;
4611 hdr->iextMax = (offset - hdr->cbExtOffset) / sizeof (struct ext_ext);
4612
4613 know ((offset & 3) == 0);
4614
4615 /* That completes the symbolic debugging information. We must now
4616 finish up the symbolic header and the ecoff_tdata structure. */
4617 set = buf;
4618 #define SET(ptr, count, type) \
4619 ecoff_data (stdoutput)->ptr = (type *) set; \
4620 set += hdr->count * sizeof (type)
4621
4622 SET (line, cbLine, unsigned char);
4623 SET (external_dnr, idnMax, struct dnr_ext);
4624 SET (external_pdr, ipdMax, struct pdr_ext);
4625 SET (external_sym, isymMax, struct sym_ext);
4626 SET (external_opt, ioptMax, struct opt_ext);
4627 SET (external_aux, iauxMax, union aux_ext);
4628 SET (ss, issMax, char);
4629 SET (ssext, issExtMax, char);
4630 SET (external_rfd, crfd, struct rfd_ext);
4631 SET (external_fdr, ifdMax, struct fdr_ext);
4632 SET (external_ext, iextMax, struct ext_ext);
4633
4634 #undef SET
4635
4636 /* FIXME: set the register masks. */
4637
4638 ecoff_data (stdoutput)->raw_size = offset;
4639 ecoff_data (stdoutput)->raw_syments = buf;
4640
4641 hdr->magic = magicSym;
4642 /* FIXME: what should hdr->vstamp be? */
4643
4644 bfd_set_symtab (stdoutput, bfd_get_outsymbols (stdoutput),
4645 hdr->isymMax + hdr->iextMax);
4646 }
4647 \f
4648 /* Allocate a cluster of pages. */
4649
4650 #ifndef MALLOC_CHECK
4651
4652 static page_t *
4653 allocate_cluster (npages)
4654 unsigned long npages;
4655 {
4656 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4657
4658 #ifdef ECOFF_DEBUG
4659 if (debug > 3)
4660 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4661 #endif
4662
4663 memset (value, 0, npages * PAGE_USIZE);
4664
4665 return value;
4666 }
4667
4668
4669 static page_t *cluster_ptr = NULL;
4670 static unsigned long pages_left = 0;
4671
4672 #endif /* MALLOC_CHECK */
4673
4674 /* Allocate one page (which is initialized to 0). */
4675
4676 static page_t *
4677 allocate_page ()
4678 {
4679 #ifndef MALLOC_CHECK
4680
4681 if (pages_left == 0)
4682 {
4683 pages_left = MAX_CLUSTER_PAGES;
4684 cluster_ptr = allocate_cluster (pages_left);
4685 }
4686
4687 pages_left--;
4688 return cluster_ptr++;
4689
4690 #else /* MALLOC_CHECK */
4691
4692 page_t *ptr;
4693
4694 ptr = xmalloc (PAGE_USIZE);
4695 memset (ptr, 0, PAGE_USIZE);
4696 return ptr;
4697
4698 #endif /* MALLOC_CHECK */
4699 }
4700 \f
4701 /* Allocate scoping information. */
4702
4703 static scope_t *
4704 allocate_scope ()
4705 {
4706 register scope_t *ptr;
4707 static scope_t initial_scope;
4708
4709 #ifndef MALLOC_CHECK
4710
4711 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4712 if (ptr != (scope_t *) NULL)
4713 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4714 else
4715 {
4716 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4717 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4718
4719 if (unallocated == 0)
4720 {
4721 unallocated = PAGE_SIZE / sizeof (scope_t);
4722 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4723 alloc_counts[(int)alloc_type_scope].total_pages++;
4724 }
4725
4726 ptr = &cur_page->scope[--unallocated];
4727 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4728 }
4729
4730 #else
4731
4732 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4733
4734 #endif
4735
4736 alloc_counts[(int)alloc_type_scope].total_alloc++;
4737 *ptr = initial_scope;
4738 return ptr;
4739 }
4740
4741 /* Free scoping information. */
4742
4743 static void
4744 free_scope (ptr)
4745 scope_t *ptr;
4746 {
4747 alloc_counts[(int)alloc_type_scope].total_free++;
4748
4749 #ifndef MALLOC_CHECK
4750 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4751 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4752 #else
4753 free ((PTR) ptr);
4754 #endif
4755 }
4756 \f
4757 /* Allocate links for pages in a virtual array. */
4758
4759 static vlinks_t *
4760 allocate_vlinks ()
4761 {
4762 register vlinks_t *ptr;
4763 static vlinks_t initial_vlinks;
4764
4765 #ifndef MALLOC_CHECK
4766
4767 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4768 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4769
4770 if (unallocated == 0)
4771 {
4772 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4773 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4774 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4775 }
4776
4777 ptr = &cur_page->vlinks[--unallocated];
4778 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4779
4780 #else
4781
4782 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4783
4784 #endif
4785
4786 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4787 *ptr = initial_vlinks;
4788 return ptr;
4789 }
4790 \f
4791 /* Allocate string hash buckets. */
4792
4793 static shash_t *
4794 allocate_shash ()
4795 {
4796 register shash_t *ptr;
4797 static shash_t initial_shash;
4798
4799 #ifndef MALLOC_CHECK
4800
4801 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4802 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4803
4804 if (unallocated == 0)
4805 {
4806 unallocated = PAGE_SIZE / sizeof (shash_t);
4807 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4808 alloc_counts[(int)alloc_type_shash].total_pages++;
4809 }
4810
4811 ptr = &cur_page->shash[--unallocated];
4812 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4813
4814 #else
4815
4816 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4817
4818 #endif
4819
4820 alloc_counts[(int)alloc_type_shash].total_alloc++;
4821 *ptr = initial_shash;
4822 return ptr;
4823 }
4824 \f
4825 /* Allocate type hash buckets. */
4826
4827 static thash_t *
4828 allocate_thash ()
4829 {
4830 register thash_t *ptr;
4831 static thash_t initial_thash;
4832
4833 #ifndef MALLOC_CHECK
4834
4835 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4836 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4837
4838 if (unallocated == 0)
4839 {
4840 unallocated = PAGE_SIZE / sizeof (thash_t);
4841 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4842 alloc_counts[(int)alloc_type_thash].total_pages++;
4843 }
4844
4845 ptr = &cur_page->thash[--unallocated];
4846 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4847
4848 #else
4849
4850 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4851
4852 #endif
4853
4854 alloc_counts[(int)alloc_type_thash].total_alloc++;
4855 *ptr = initial_thash;
4856 return ptr;
4857 }
4858 \f
4859 /* Allocate structure, union, or enum tag information. */
4860
4861 static tag_t *
4862 allocate_tag ()
4863 {
4864 register tag_t *ptr;
4865 static tag_t initial_tag;
4866
4867 #ifndef MALLOC_CHECK
4868
4869 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4870 if (ptr != (tag_t *) NULL)
4871 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4872 else
4873 {
4874 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4875 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4876
4877 if (unallocated == 0)
4878 {
4879 unallocated = PAGE_SIZE / sizeof (tag_t);
4880 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4881 alloc_counts[(int)alloc_type_tag].total_pages++;
4882 }
4883
4884 ptr = &cur_page->tag[--unallocated];
4885 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4886 }
4887
4888 #else
4889
4890 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4891
4892 #endif
4893
4894 alloc_counts[(int)alloc_type_tag].total_alloc++;
4895 *ptr = initial_tag;
4896 return ptr;
4897 }
4898
4899 /* Free scoping information. */
4900
4901 static void
4902 free_tag (ptr)
4903 tag_t *ptr;
4904 {
4905 alloc_counts[(int)alloc_type_tag].total_free++;
4906
4907 #ifndef MALLOC_CHECK
4908 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4909 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4910 #else
4911 free ((PTR_T) ptr);
4912 #endif
4913 }
4914 \f
4915 /* Allocate forward reference to a yet unknown tag. */
4916
4917 static forward_t *
4918 allocate_forward ()
4919 {
4920 register forward_t *ptr;
4921 static forward_t initial_forward;
4922
4923 #ifndef MALLOC_CHECK
4924
4925 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4926 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4927
4928 if (unallocated == 0)
4929 {
4930 unallocated = PAGE_SIZE / sizeof (forward_t);
4931 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4932 alloc_counts[(int)alloc_type_forward].total_pages++;
4933 }
4934
4935 ptr = &cur_page->forward[--unallocated];
4936 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4937
4938 #else
4939
4940 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4941
4942 #endif
4943
4944 alloc_counts[(int)alloc_type_forward].total_alloc++;
4945 *ptr = initial_forward;
4946 return ptr;
4947 }
4948 \f
4949 /* Allocate head of type hash list. */
4950
4951 static thead_t *
4952 allocate_thead ()
4953 {
4954 register thead_t *ptr;
4955 static thead_t initial_thead;
4956
4957 #ifndef MALLOC_CHECK
4958
4959 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4960 if (ptr != (thead_t *) NULL)
4961 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4962 else
4963 {
4964 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4965 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4966
4967 if (unallocated == 0)
4968 {
4969 unallocated = PAGE_SIZE / sizeof (thead_t);
4970 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4971 alloc_counts[(int)alloc_type_thead].total_pages++;
4972 }
4973
4974 ptr = &cur_page->thead[--unallocated];
4975 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4976 }
4977
4978 #else
4979
4980 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4981
4982 #endif
4983
4984 alloc_counts[(int)alloc_type_thead].total_alloc++;
4985 *ptr = initial_thead;
4986 return ptr;
4987 }
4988
4989 /* Free scoping information. */
4990
4991 static void
4992 free_thead (ptr)
4993 thead_t *ptr;
4994 {
4995 alloc_counts[(int)alloc_type_thead].total_free++;
4996
4997 #ifndef MALLOC_CHECK
4998 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4999 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5000 #else
5001 free ((PTR_T) ptr);
5002 #endif
5003 }
5004 \f
5005 static lineno_list_t *
5006 allocate_lineno_list ()
5007 {
5008 register lineno_list_t *ptr;
5009 static lineno_list_t initial_lineno_list;
5010
5011 #ifndef MALLOC_CHECK
5012
5013 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
5014 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
5015
5016 if (unallocated == 0)
5017 {
5018 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5019 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5020 alloc_counts[(int)alloc_type_lineno].total_pages++;
5021 }
5022
5023 ptr = &cur_page->lineno[--unallocated];
5024 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5025
5026 #else
5027
5028 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5029
5030 #endif
5031
5032 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5033 *ptr = initial_lineno_list;
5034 return ptr;
5035 }
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