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* config/obj-ecoff.c (ecoff_frob_file): Discard all open scopes,
[thirdparty/binutils-gdb.git] / gas / config / obj-ecoff.c
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 hash_ptr = allocate_shash ();
2112 err = hash_insert (tag_hash, tag, (char *) hash_ptr);
2113 if (*err != '\0')
2114 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2115 tag, err);
2116 }
2117
2118 tag_ptr = allocate_tag ();
2119 tag_ptr->forward_ref = (forward_t *) NULL;
2120 tag_ptr->hash_ptr = hash_ptr;
2121 tag_ptr->same_name = hash_ptr->tag_ptr;
2122 tag_ptr->basic_type = basic_type;
2123 tag_ptr->sym = sym;
2124 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2125 ? -1
2126 : cur_file_ptr->file_index);
2127 tag_ptr->same_block = cur_tag_head->first_tag;
2128
2129 cur_tag_head->first_tag = tag_ptr;
2130 hash_ptr->tag_ptr = tag_ptr;
2131
2132 return tag_ptr;
2133 }
2134 \f
2135 /* Add an unknown {struct, union, enum} tag. */
2136
2137 static void
2138 add_unknown_tag (ptag)
2139 tag_t *ptag; /* pointer to tag information */
2140 {
2141 shash_t *hash_ptr = ptag->hash_ptr;
2142 char *name = hash_ptr->string;
2143 localsym_t *sym;
2144 forward_t **pf;
2145
2146 #ifdef ECOFF_DEBUG
2147 if (debug > 1)
2148 {
2149 char *agg_type = "{unknown aggregate type}";
2150 switch (ptag->basic_type)
2151 {
2152 case bt_Struct: agg_type = "struct"; break;
2153 case bt_Union: agg_type = "union"; break;
2154 case bt_Enum: agg_type = "enum"; break;
2155 default: break;
2156 }
2157
2158 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2159 hash_ptr->len, name_start);
2160 }
2161 #endif
2162
2163 sym = add_ecoff_symbol (name,
2164 st_Block,
2165 sc_Info,
2166 (symbolS *) NULL,
2167 (symint_t) 0,
2168 (symint_t) 0);
2169
2170 (void) add_ecoff_symbol (name,
2171 st_End,
2172 sc_Info,
2173 (symbolS *) NULL,
2174 (symint_t) 0,
2175 (symint_t) 0);
2176
2177 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2178 ;
2179 *pf = ptag->forward_ref;
2180 }
2181 \f
2182 /* Add a procedure to the current file's list of procedures, and record
2183 this is the current procedure. */
2184
2185 static void
2186 add_procedure (func)
2187 char *func; /* func name */
2188 {
2189 register varray_t *vp;
2190 register proc_t *new_proc_ptr;
2191
2192 #ifdef ECOFF_DEBUG
2193 if (debug)
2194 fputc ('\n', stderr);
2195 #endif
2196
2197 if (cur_file_ptr == (efdr_t *) NULL)
2198 as_fatal ("no current file pointer");
2199
2200 vp = &cur_file_ptr->procs;
2201
2202 if (vp->objects_last_page == vp->objects_per_page)
2203 add_varray_page (vp);
2204
2205 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2206
2207 vp->num_allocated++;
2208
2209 new_proc_ptr->pdr.isym = -1;
2210 new_proc_ptr->pdr.iline = -1;
2211 new_proc_ptr->pdr.lnLow = -1;
2212 new_proc_ptr->pdr.lnHigh = -1;
2213
2214 /* Push the start of the function. */
2215 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2216 symbol_find_or_make (func),
2217 (symint_t) 0, (symint_t) 0);
2218
2219 ++proc_cnt;
2220
2221 /* Fill in the linenos preceding the .ent, if any. */
2222 if (noproc_lineno != (lineno_list_t *) NULL)
2223 {
2224 lineno_list_t *l;
2225
2226 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2227 l->proc = new_proc_ptr;
2228 *last_lineno_ptr = noproc_lineno;
2229 while (*last_lineno_ptr != NULL)
2230 last_lineno_ptr = &(*last_lineno_ptr)->next;
2231 noproc_lineno = (lineno_list_t *) NULL;
2232 }
2233 }
2234 \f
2235 /* Add a new filename, and set up all of the file relative
2236 virtual arrays (strings, symbols, aux syms, etc.). Record
2237 where the current file structure lives. */
2238
2239 static void
2240 add_file (file_name, indx)
2241 const char *file_name; /* file name */
2242 int indx;
2243 {
2244 register int first_ch;
2245 register efdr_t *fil_ptr;
2246
2247 #ifdef ECOFF_DEBUG
2248 if (debug)
2249 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2250 #endif
2251
2252 /* If the file name is NULL, then no .file symbol appeared, and we
2253 want to use the actual file name. Unfortunately, we don't have a
2254 clean way to access it. */
2255 if (file_name == (const char *) NULL)
2256 {
2257 extern char *logical_input_file;
2258 extern char *physical_input_file;
2259
2260 if (first_file != (efdr_t *) NULL)
2261 as_fatal ("fake .file after real one");
2262 file_name = logical_input_file;
2263 if (file_name == (const char *) NULL)
2264 {
2265 file_name = physical_input_file;
2266 if (file_name == (const char *) NULL)
2267 file_name = "UNKNOWN";
2268 }
2269 }
2270
2271 #ifndef NO_LISTING
2272 if (listing)
2273 listing_source_file (file_name);
2274 #endif
2275
2276 /* If we're creating stabs, then we don't actually make a new FDR.
2277 Instead, we just create a stabs symbol. */
2278 if (stabs_seen)
2279 {
2280 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2281 symbol_new ("L0\001", now_seg,
2282 frag_now_fix (), frag_now),
2283 0, MIPS_MARK_STAB (N_SOL));
2284 return;
2285 }
2286
2287 first_ch = *file_name;
2288
2289 /* See if the file has already been created. */
2290 for (fil_ptr = first_file;
2291 fil_ptr != (efdr_t *) NULL;
2292 fil_ptr = fil_ptr->next_file)
2293 {
2294 if (first_ch == fil_ptr->name[0]
2295 && strcmp (file_name, fil_ptr->name) == 0)
2296 {
2297 cur_file_ptr = fil_ptr;
2298 break;
2299 }
2300 }
2301
2302 /* If this is a new file, create it. */
2303 if (fil_ptr == (efdr_t *) NULL)
2304 {
2305 if (file_desc.objects_last_page == file_desc.objects_per_page)
2306 add_varray_page (&file_desc);
2307
2308 fil_ptr = cur_file_ptr =
2309 &file_desc.last->datum->file[file_desc.objects_last_page++];
2310 *fil_ptr = init_file;
2311
2312 fil_ptr->file_index = indx;
2313 ++file_desc.num_allocated;
2314
2315 /* Allocate the string hash table. */
2316 fil_ptr->str_hash = hash_new ();
2317
2318 /* Make sure 0 byte in string table is null */
2319 add_string (&fil_ptr->strings,
2320 fil_ptr->str_hash,
2321 "",
2322 (shash_t **)0);
2323
2324 if (strlen (file_name) > PAGE_USIZE - 2)
2325 as_fatal ("Filename goes over one page boundary.");
2326
2327 /* Push the start of the filename. We assume that the filename
2328 will be stored at string offset 1. */
2329 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2330 (symbolS *) NULL,
2331 (symint_t) 0, (symint_t) 0);
2332 fil_ptr->fdr.rss = 1;
2333 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2334
2335 /* Update the linked list of file descriptors. */
2336 *last_file_ptr = fil_ptr;
2337 last_file_ptr = &fil_ptr->next_file;
2338
2339 /* Add void & int types to the file (void should be first to catch
2340 errant 0's within the index fields). */
2341 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2342 hash_yes,
2343 &cur_file_ptr->thash_head[0]);
2344
2345 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2346 hash_yes,
2347 &cur_file_ptr->thash_head[0]);
2348 }
2349 }
2350 \f
2351 #ifdef ECOFF_DEBUG
2352
2353 /* Convert storage class to string. */
2354
2355 static char *
2356 sc_to_string(storage_class)
2357 sc_t storage_class;
2358 {
2359 switch(storage_class)
2360 {
2361 case sc_Nil: return "Nil,";
2362 case sc_Text: return "Text,";
2363 case sc_Data: return "Data,";
2364 case sc_Bss: return "Bss,";
2365 case sc_Register: return "Register,";
2366 case sc_Abs: return "Abs,";
2367 case sc_Undefined: return "Undefined,";
2368 case sc_CdbLocal: return "CdbLocal,";
2369 case sc_Bits: return "Bits,";
2370 case sc_CdbSystem: return "CdbSystem,";
2371 case sc_RegImage: return "RegImage,";
2372 case sc_Info: return "Info,";
2373 case sc_UserStruct: return "UserStruct,";
2374 case sc_SData: return "SData,";
2375 case sc_SBss: return "SBss,";
2376 case sc_RData: return "RData,";
2377 case sc_Var: return "Var,";
2378 case sc_Common: return "Common,";
2379 case sc_SCommon: return "SCommon,";
2380 case sc_VarRegister: return "VarRegister,";
2381 case sc_Variant: return "Variant,";
2382 case sc_SUndefined: return "SUndefined,";
2383 case sc_Init: return "Init,";
2384 case sc_Max: return "Max,";
2385 }
2386
2387 return "???,";
2388 }
2389
2390 #endif /* DEBUG */
2391 \f
2392 #ifdef ECOFF_DEBUG
2393
2394 /* Convert symbol type to string. */
2395
2396 static char *
2397 st_to_string(symbol_type)
2398 st_t symbol_type;
2399 {
2400 switch(symbol_type)
2401 {
2402 case st_Nil: return "Nil,";
2403 case st_Global: return "Global,";
2404 case st_Static: return "Static,";
2405 case st_Param: return "Param,";
2406 case st_Local: return "Local,";
2407 case st_Label: return "Label,";
2408 case st_Proc: return "Proc,";
2409 case st_Block: return "Block,";
2410 case st_End: return "End,";
2411 case st_Member: return "Member,";
2412 case st_Typedef: return "Typedef,";
2413 case st_File: return "File,";
2414 case st_RegReloc: return "RegReloc,";
2415 case st_Forward: return "Forward,";
2416 case st_StaticProc: return "StaticProc,";
2417 case st_Constant: return "Constant,";
2418 case st_Str: return "String,";
2419 case st_Number: return "Number,";
2420 case st_Expr: return "Expr,";
2421 case st_Type: return "Type,";
2422 case st_Max: return "Max,";
2423 }
2424
2425 return "???,";
2426 }
2427
2428 #endif /* DEBUG */
2429 \f
2430 /* Parse .begin directives which have a label as the first argument
2431 which gives the location of the start of the block. */
2432
2433 static void
2434 obj_ecoff_begin (ignore)
2435 int ignore;
2436 {
2437 char *name;
2438 char name_end;
2439
2440 if (cur_file_ptr == (efdr_t *) NULL)
2441 {
2442 as_warn (".begin directive without a preceding .file directive");
2443 demand_empty_rest_of_line ();
2444 return;
2445 }
2446
2447 if (cur_proc_ptr == (proc_t *) NULL)
2448 {
2449 as_warn (".begin directive without a preceding .ent directive");
2450 demand_empty_rest_of_line ();
2451 return;
2452 }
2453
2454 name = input_line_pointer;
2455 name_end = get_symbol_end ();
2456
2457 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2458 symbol_find_or_make (name),
2459 (symint_t) 0, (symint_t) 0);
2460
2461 *input_line_pointer = name_end;
2462
2463 /* The line number follows, but we don't use it. */
2464 (void) get_absolute_expression ();
2465 demand_empty_rest_of_line ();
2466 }
2467 \f
2468 /* Parse .bend directives which have a label as the first argument
2469 which gives the location of the end of the block. */
2470
2471 static void
2472 obj_ecoff_bend (ignore)
2473 int ignore;
2474 {
2475 char *name;
2476 char name_end;
2477 symbolS *endsym;
2478
2479 if (cur_file_ptr == (efdr_t *) NULL)
2480 {
2481 as_warn (".bend directive without a preceding .file directive");
2482 demand_empty_rest_of_line ();
2483 return;
2484 }
2485
2486 if (cur_proc_ptr == (proc_t *) NULL)
2487 {
2488 as_warn (".bend directive without a preceding .ent directive");
2489 demand_empty_rest_of_line ();
2490 return;
2491 }
2492
2493 name = input_line_pointer;
2494 name_end = get_symbol_end ();
2495
2496 /* The value is the distance between the .bend directive and the
2497 corresponding symbol. We fill in the offset when we write out
2498 the symbol. */
2499 endsym = symbol_find (name);
2500 if (endsym == (symbolS *) NULL)
2501 as_warn (".bend directive names unknown symbol");
2502 else
2503 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2504 (symint_t) 0, (symint_t) 0);
2505
2506 *input_line_pointer = name_end;
2507
2508 /* The line number follows, but we don't use it. */
2509 (void) get_absolute_expression ();
2510 demand_empty_rest_of_line ();
2511 }
2512 \f
2513 /* COFF debugging information is provided as a series of directives
2514 (.def, .scl, etc.). We build up information as we read the
2515 directives in the following static variables, and file it away when
2516 we reach the .endef directive. */
2517 static char *coff_sym_name;
2518 static type_info_t coff_type;
2519 static sc_t coff_storage_class;
2520 static st_t coff_symbol_type;
2521 static int coff_is_function;
2522 static char *coff_tag;
2523 static long coff_value; /* FIXME: Might be 64 bits. */
2524 symbolS *coff_sym_value;
2525 static int coff_inside_enumeration;
2526
2527 /* Handle a .def directive: start defining a symbol. */
2528
2529 static void
2530 obj_ecoff_def (ignore)
2531 int ignore;
2532 {
2533 char *name;
2534 char name_end;
2535
2536 SKIP_WHITESPACES ();
2537
2538 name = input_line_pointer;
2539 name_end = get_symbol_end ();
2540
2541 if (coff_sym_name != (char *) NULL)
2542 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2543 else if (*name == '\0')
2544 as_warn ("Empty symbol name in .def; ignored");
2545 else
2546 {
2547 if (coff_sym_name != (char *) NULL)
2548 free (coff_sym_name);
2549 if (coff_tag != (char *) NULL)
2550 free (coff_tag);
2551 coff_sym_name = (char *) xmalloc (strlen (name) + 1);
2552 strcpy (coff_sym_name, name);
2553 coff_type = type_info_init;
2554 coff_storage_class = sc_Nil;
2555 coff_symbol_type = st_Nil;
2556 coff_is_function = 0;
2557 coff_tag = (char *) NULL;
2558 coff_value = 0;
2559 coff_sym_value = (symbolS *) NULL;
2560 }
2561
2562 *input_line_pointer = name_end;
2563
2564 demand_empty_rest_of_line ();
2565 }
2566
2567 /* Handle a .dim directive, used to give dimensions for an array. The
2568 arguments are comma separated numbers. mips-tfile assumes that
2569 there will not be more than 6 dimensions, and gdb won't read any
2570 more than that anyhow, so I will also make that assumption. */
2571
2572 static void
2573 obj_ecoff_dim (ignore)
2574 int ignore;
2575 {
2576 int dimens[N_TQ];
2577 int i;
2578
2579 if (coff_sym_name == (char *) NULL)
2580 {
2581 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2582 demand_empty_rest_of_line ();
2583 return;
2584 }
2585
2586 for (i = 0; i < N_TQ; i++)
2587 {
2588 SKIP_WHITESPACES ();
2589 dimens[i] = get_absolute_expression ();
2590 if (*input_line_pointer == ',')
2591 ++input_line_pointer;
2592 else
2593 {
2594 if (*input_line_pointer != '\n'
2595 && *input_line_pointer != ';')
2596 as_warn ("Badly formed .dim directive");
2597 break;
2598 }
2599 }
2600
2601 if (i == N_TQ)
2602 --i;
2603
2604 /* The dimensions are stored away in reverse order. */
2605 for (; i >= 0; i--)
2606 {
2607 if (coff_type.num_dims >= N_TQ)
2608 {
2609 as_warn ("Too many .dim entries");
2610 break;
2611 }
2612 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2613 ++coff_type.num_dims;
2614 }
2615
2616 demand_empty_rest_of_line ();
2617 }
2618
2619 /* Handle a .scl directive, which sets the COFF storage class of the
2620 symbol. */
2621
2622 static void
2623 obj_ecoff_scl (ignore)
2624 int ignore;
2625 {
2626 long val;
2627
2628 if (coff_sym_name == (char *) NULL)
2629 {
2630 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2631 demand_empty_rest_of_line ();
2632 return;
2633 }
2634
2635 val = get_absolute_expression ();
2636
2637 coff_symbol_type = map_coff_sym_type[val];
2638 coff_storage_class = map_coff_storage[val];
2639
2640 demand_empty_rest_of_line ();
2641 }
2642
2643 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2644 .size can have multiple arguments. We humor it, although gcc will
2645 never generate more than one argument. */
2646
2647 static void
2648 obj_ecoff_size (ignore)
2649 int ignore;
2650 {
2651 int sizes[N_TQ];
2652 int i;
2653
2654 if (coff_sym_name == (char *) NULL)
2655 {
2656 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2657 demand_empty_rest_of_line ();
2658 return;
2659 }
2660
2661 for (i = 0; i < N_TQ; i++)
2662 {
2663 SKIP_WHITESPACES ();
2664 sizes[i] = get_absolute_expression ();
2665 if (*input_line_pointer == ',')
2666 ++input_line_pointer;
2667 else
2668 {
2669 if (*input_line_pointer != '\n'
2670 && *input_line_pointer != ';')
2671 as_warn ("Badly formed .size directive");
2672 break;
2673 }
2674 }
2675
2676 if (i == N_TQ)
2677 --i;
2678
2679 /* The sizes are stored away in reverse order. */
2680 for (; i >= 0; i--)
2681 {
2682 if (coff_type.num_sizes >= N_TQ)
2683 {
2684 as_warn ("Too many .size entries");
2685 break;
2686 }
2687 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2688 ++coff_type.num_sizes;
2689 }
2690
2691 demand_empty_rest_of_line ();
2692 }
2693
2694 /* Handle the .type directive, which gives the COFF type of the
2695 symbol. */
2696
2697 static void
2698 obj_ecoff_type (ignore)
2699 int ignore;
2700 {
2701 long val;
2702 tq_t *tq_ptr;
2703 tq_t *tq_shft;
2704
2705 if (coff_sym_name == (char *) NULL)
2706 {
2707 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2708 demand_empty_rest_of_line ();
2709 return;
2710 }
2711
2712 val = get_absolute_expression ();
2713
2714 coff_type.orig_type = BTYPE (val);
2715 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2716
2717 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2718 while (val &~ N_BTMASK)
2719 {
2720 if (tq_ptr == &coff_type.type_qualifiers[0])
2721 {
2722 as_warn ("Too derived values in .type argument");
2723 break;
2724 }
2725 if (ISPTR (val))
2726 *--tq_ptr = tq_Ptr;
2727 else if (ISFCN (val))
2728 *--tq_ptr = tq_Proc;
2729 else if (ISARY (val))
2730 *--tq_ptr = tq_Array;
2731 else
2732 as_fatal ("Unrecognized .type argument");
2733
2734 val = DECREF (val);
2735 }
2736
2737 tq_shft = &coff_type.type_qualifiers[0];
2738 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2739 *tq_shft++ = *tq_ptr++;
2740
2741 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2742 {
2743 /* If this is a function, ignore it, so that we don't get two
2744 entries (one from the .ent, and one for the .def that
2745 precedes it). Save the type information so that the end
2746 block can properly add it after the begin block index. For
2747 MIPS knows what reason, we must strip off the function type
2748 at this point. */
2749 coff_is_function = 1;
2750 tq_shft[-1] = tq_Nil;
2751 }
2752
2753 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2754 *tq_shft++ = tq_Nil;
2755
2756 demand_empty_rest_of_line ();
2757 }
2758
2759 /* Handle the .tag directive, which gives the name of a structure,
2760 union or enum. */
2761
2762 static void
2763 obj_ecoff_tag (ignore)
2764 int ignore;
2765 {
2766 char *name;
2767 char name_end;
2768
2769 if (coff_sym_name == (char *) NULL)
2770 {
2771 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2772 demand_empty_rest_of_line ();
2773 return;
2774 }
2775
2776 name = input_line_pointer;
2777 name_end = get_symbol_end ();
2778
2779 coff_tag = (char *) xmalloc (strlen (name) + 1);
2780 strcpy (coff_tag, name);
2781
2782 *input_line_pointer = name_end;
2783
2784 demand_empty_rest_of_line ();
2785 }
2786
2787 /* Handle the .val directive, which gives the value of the symbol. It
2788 may be the name of a static or global symbol. */
2789
2790 static void
2791 obj_ecoff_val (ignore)
2792 int ignore;
2793 {
2794 if (coff_sym_name == (char *) NULL)
2795 {
2796 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2797 demand_empty_rest_of_line ();
2798 return;
2799 }
2800
2801 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2802 coff_value = get_absolute_expression ();
2803 else
2804 {
2805 char *name;
2806 char name_end;
2807
2808 name = input_line_pointer;
2809 name_end = get_symbol_end ();
2810
2811 if (strcmp (name, ".") == 0)
2812 as_warn ("`.val .' not supported");
2813 else
2814 coff_sym_value = symbol_find_or_make (name);
2815
2816 *input_line_pointer = name_end;
2817
2818 /* FIXME: gcc can generate address expressions here in unusual
2819 cases (search for "obscure" in sdbout.c), although this is
2820 very unlikely for a MIPS chip. */
2821 }
2822
2823 demand_empty_rest_of_line ();
2824 }
2825
2826 /* Handle the .endef directive, which terminates processing of COFF
2827 debugging information for a symbol. */
2828
2829 static void
2830 obj_ecoff_endef (ignore)
2831 int ignore;
2832 {
2833 char *name;
2834 symint_t indx;
2835 localsym_t *sym;
2836
2837 demand_empty_rest_of_line ();
2838
2839 if (coff_sym_name == (char *) NULL)
2840 {
2841 as_warn (".endef pseudo-op used before .def; ignored");
2842 return;
2843 }
2844
2845 name = coff_sym_name;
2846 coff_sym_name = (char *) NULL;
2847
2848 /* If the symbol is a static or external, we have already gotten the
2849 appropriate type and class, so make sure we don't override those
2850 values. This is needed because there are some type and classes
2851 that are not in COFF, such as short data, etc. */
2852 if (coff_sym_value != (symbolS *) NULL)
2853 {
2854 coff_symbol_type = st_Nil;
2855 coff_storage_class = sc_Nil;
2856 }
2857
2858 coff_type.extra_sizes = coff_tag != (char *) NULL;
2859 if (coff_type.num_dims > 0)
2860 {
2861 int diff = coff_type.num_dims - coff_type.num_sizes;
2862 int i = coff_type.num_dims - 1;
2863 int j;
2864
2865 if (coff_type.num_sizes != 1 || diff < 0)
2866 {
2867 as_warn ("Bad COFF debugging info");
2868 return;
2869 }
2870
2871 /* If this is an array, make sure the same number of dimensions
2872 and sizes were passed, creating extra sizes for multiply
2873 dimensioned arrays if not passed. */
2874 coff_type.extra_sizes = 0;
2875 if (diff)
2876 {
2877 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2878 while (j >= 0)
2879 {
2880 coff_type.sizes[j] = (((j - diff) >= 0)
2881 ? coff_type.sizes[j - diff]
2882 : 0);
2883 j--;
2884 }
2885
2886 coff_type.num_sizes = i + 1;
2887 for (i--; i >= 0; i--)
2888 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2889 / coff_type.dimensions[i + 1]);
2890 }
2891 }
2892 else if (coff_symbol_type == st_Member
2893 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2894 {
2895 /* Is this a bitfield? This is indicated by a structure memeber
2896 having a size field that isn't an array. */
2897 coff_type.bitfield = 1;
2898 }
2899
2900 /* Except for enumeration members & begin/ending of scopes, put the
2901 type word in the aux. symbol table. */
2902 if (coff_symbol_type == st_Block || coff_symbol_type == st_End)
2903 indx = 0;
2904 else if (coff_inside_enumeration)
2905 indx = cur_file_ptr->void_type;
2906 else
2907 {
2908 if (coff_type.basic_type == bt_Struct
2909 || coff_type.basic_type == bt_Union
2910 || coff_type.basic_type == bt_Enum)
2911 {
2912 if (coff_tag == (char *) NULL)
2913 {
2914 as_warn ("No tag specified for %s", name);
2915 return;
2916 }
2917
2918 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2919 coff_type.basic_type);
2920 }
2921
2922 if (coff_is_function)
2923 {
2924 last_func_type_info = coff_type;
2925 last_func_sym_value = coff_sym_value;
2926 return;
2927 }
2928
2929 indx = add_aux_sym_tir (&coff_type,
2930 hash_yes,
2931 &cur_file_ptr->thash_head[0]);
2932 }
2933
2934 /* Do any last minute adjustments that are necessary. */
2935 switch (coff_symbol_type)
2936 {
2937 default:
2938 break;
2939
2940 /* For the beginning of structs, unions, and enumerations, the
2941 size info needs to be passed in the value field. */
2942 case st_Block:
2943 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2944 != 1)
2945 {
2946 as_warn ("Bad COFF debugging information");
2947 return;
2948 }
2949 else
2950 coff_value = coff_type.sizes[0];
2951
2952 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2953 break;
2954
2955 /* For the end of structs, unions, and enumerations, omit the
2956 name which is always ".eos". This needs to be done last, so
2957 that any error reporting above gives the correct name. */
2958 case st_End:
2959 free (name);
2960 name = (char *) NULL;
2961 coff_value = 0;
2962 coff_inside_enumeration = 0;
2963 break;
2964
2965 /* Members of structures and unions that aren't bitfields, need
2966 to adjust the value from a byte offset to a bit offset.
2967 Members of enumerations do not have the value adjusted, and
2968 can be distinguished by indx == indexNil. For enumerations,
2969 update the maximum enumeration value. */
2970 case st_Member:
2971 if (! coff_type.bitfield && ! coff_inside_enumeration)
2972 coff_value *= 8;
2973
2974 break;
2975 }
2976
2977 /* Add the symbol. */
2978 sym = add_ecoff_symbol (name,
2979 coff_symbol_type,
2980 coff_storage_class,
2981 coff_sym_value,
2982 coff_value,
2983 indx);
2984
2985 /* deal with struct, union, and enum tags. */
2986 if (coff_symbol_type == st_Block)
2987 {
2988 /* Create or update the tag information. */
2989 tag_t *tag_ptr = get_tag (name,
2990 sym,
2991 coff_type.basic_type);
2992 forward_t **pf;
2993
2994 /* Remember any forward references. */
2995 for (pf = &sym->forward_ref;
2996 *pf != (forward_t *) NULL;
2997 pf = &(*pf)->next)
2998 ;
2999 *pf = tag_ptr->forward_ref;
3000 tag_ptr->forward_ref = (forward_t *) NULL;
3001 }
3002 }
3003 \f
3004 /* Parse .end directives. */
3005
3006 static void
3007 obj_ecoff_end (ignore)
3008 int ignore;
3009 {
3010 char *name;
3011 char name_end;
3012 register int ch;
3013 symbolS *ent;
3014
3015 if (cur_file_ptr == (efdr_t *) NULL)
3016 {
3017 as_warn (".end directive without a preceding .file directive");
3018 demand_empty_rest_of_line ();
3019 return;
3020 }
3021
3022 if (cur_proc_ptr == (proc_t *) NULL)
3023 {
3024 as_warn (".end directive without a preceding .ent directive");
3025 demand_empty_rest_of_line ();
3026 return;
3027 }
3028
3029 name = input_line_pointer;
3030 name_end = get_symbol_end ();
3031
3032 ch = *name;
3033 if (! is_name_beginner (ch))
3034 {
3035 as_warn (".end directive has no name");
3036 *input_line_pointer = name_end;
3037 demand_empty_rest_of_line ();
3038 return;
3039 }
3040
3041 /* The value is the distance between the .end directive and the
3042 corresponding symbol. We create a fake symbol to hold the
3043 current location, and put in the offset when we write out the
3044 symbol. */
3045 ent = symbol_find (name);
3046 if (ent == (symbolS *) NULL)
3047 as_warn (".end directive names unknown symbol");
3048 else
3049 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3050 symbol_new ("L0\001", now_seg,
3051 frag_now_fix (), frag_now),
3052 (symint_t) 0, (symint_t) 0);
3053
3054 cur_proc_ptr = (proc_t *) NULL;
3055
3056 *input_line_pointer = name_end;
3057 demand_empty_rest_of_line ();
3058 }
3059 \f
3060 /* Parse .ent directives. */
3061
3062 static void
3063 obj_ecoff_ent (ignore)
3064 int ignore;
3065 {
3066 char *name;
3067 char name_end;
3068 register int ch;
3069
3070 if (cur_file_ptr == (efdr_t *) NULL)
3071 add_file ((const char *) NULL, 0);
3072
3073 if (cur_proc_ptr != (proc_t *) NULL)
3074 {
3075 as_warn ("second .ent directive found before .end directive");
3076 demand_empty_rest_of_line ();
3077 return;
3078 }
3079
3080 name = input_line_pointer;
3081 name_end = get_symbol_end ();
3082
3083 ch = *name;
3084 if (! is_name_beginner (ch))
3085 {
3086 as_warn (".ent directive has no name");
3087 *input_line_pointer = name_end;
3088 demand_empty_rest_of_line ();
3089 return;
3090 }
3091
3092 add_procedure (name);
3093
3094 *input_line_pointer = name_end;
3095 demand_empty_rest_of_line ();
3096 }
3097 \f
3098 /* Parse .file directives. */
3099
3100 static void
3101 obj_ecoff_file (ignore)
3102 int ignore;
3103 {
3104 int indx;
3105 char *name;
3106 int len;
3107
3108 if (cur_proc_ptr != (proc_t *) NULL)
3109 {
3110 as_warn ("No way to handle .file within .ent/.end section");
3111 demand_empty_rest_of_line ();
3112 return;
3113 }
3114
3115 indx = (int) get_absolute_expression ();
3116
3117 /* FIXME: we don't have to save the name here. */
3118 name = demand_copy_C_string (&len);
3119
3120 add_file (name, indx - 1);
3121
3122 demand_empty_rest_of_line ();
3123 }
3124 \f
3125 /* Parse .fmask directives. */
3126
3127 static void
3128 obj_ecoff_fmask (ignore)
3129 int ignore;
3130 {
3131 long val;
3132
3133 if (cur_proc_ptr == (proc_t *) NULL)
3134 {
3135 as_warn (".fmask outside of .ent");
3136 demand_empty_rest_of_line ();
3137 return;
3138 }
3139
3140 if (get_absolute_expression_and_terminator (&val) != ',')
3141 {
3142 as_warn ("Bad .fmask directive");
3143 --input_line_pointer;
3144 demand_empty_rest_of_line ();
3145 return;
3146 }
3147
3148 cur_proc_ptr->pdr.fregmask = val;
3149 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3150
3151 demand_empty_rest_of_line ();
3152 }
3153 \f
3154 /* Parse .frame directives. */
3155
3156 static void
3157 obj_ecoff_frame (ignore)
3158 int ignore;
3159 {
3160 long val;
3161
3162 if (cur_proc_ptr == (proc_t *) NULL)
3163 {
3164 as_warn (".frame outside of .ent");
3165 demand_empty_rest_of_line ();
3166 return;
3167 }
3168
3169 cur_proc_ptr->pdr.framereg = tc_get_register ();
3170
3171 SKIP_WHITESPACE ();
3172 if (*input_line_pointer++ != ','
3173 || get_absolute_expression_and_terminator (&val) != ',')
3174 {
3175 as_warn ("Bad .frame directive");
3176 --input_line_pointer;
3177 demand_empty_rest_of_line ();
3178 return;
3179 }
3180
3181 cur_proc_ptr->pdr.frameoffset = val;
3182
3183 cur_proc_ptr->pdr.pcreg = tc_get_register ();
3184
3185 demand_empty_rest_of_line ();
3186 }
3187 \f
3188 /* Parse .mask directives. */
3189
3190 static void
3191 obj_ecoff_mask (ignore)
3192 int ignore;
3193 {
3194 long val;
3195
3196 if (cur_proc_ptr == (proc_t *) NULL)
3197 {
3198 as_warn (".mask outside of .ent");
3199 demand_empty_rest_of_line ();
3200 return;
3201 }
3202
3203 if (get_absolute_expression_and_terminator (&val) != ',')
3204 {
3205 as_warn ("Bad .mask directive");
3206 --input_line_pointer;
3207 demand_empty_rest_of_line ();
3208 return;
3209 }
3210
3211 cur_proc_ptr->pdr.regmask = val;
3212 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3213
3214 demand_empty_rest_of_line ();
3215 }
3216 \f
3217 /* Parse .loc directives. */
3218
3219 static void
3220 obj_ecoff_loc (ignore)
3221 int ignore;
3222 {
3223 lineno_list_t *list;
3224 int lineno;
3225
3226 if (cur_file_ptr == (efdr_t *) NULL)
3227 {
3228 as_warn (".loc before .file");
3229 demand_empty_rest_of_line ();
3230 return;
3231 }
3232
3233 if (now_seg != text_section)
3234 {
3235 as_warn (".loc outside of .text");
3236 demand_empty_rest_of_line ();
3237 return;
3238 }
3239
3240 /* Skip the file number. */
3241 SKIP_WHITESPACE ();
3242 get_absolute_expression ();
3243 SKIP_WHITESPACE ();
3244
3245 lineno = get_absolute_expression ();
3246
3247 #ifndef NO_LISTING
3248 if (listing)
3249 listing_source_line (lineno);
3250 #endif
3251
3252 /* If we're building stabs, then output a special label rather than
3253 ECOFF line number info. */
3254 if (stabs_seen)
3255 {
3256 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3257 symbol_new ("L0\001", now_seg,
3258 frag_now_fix (), frag_now),
3259 0, lineno);
3260 return;
3261 }
3262
3263 list = allocate_lineno_list ();
3264
3265 list->next = (lineno_list_t *) NULL;
3266 list->file = cur_file_ptr;
3267 list->proc = cur_proc_ptr;
3268 list->frag = frag_now;
3269 list->paddr = frag_now_fix ();
3270 list->lineno = lineno;
3271
3272 /* A .loc directive will sometimes appear before a .ent directive,
3273 which means that cur_proc_ptr will be NULL here. Arrange to
3274 patch this up. */
3275 if (cur_proc_ptr == (proc_t *) NULL)
3276 {
3277 lineno_list_t **pl;
3278
3279 pl = &noproc_lineno;
3280 while (*pl != (lineno_list_t *) NULL)
3281 pl = &(*pl)->next;
3282 *pl = list;
3283 }
3284 else
3285 {
3286 *last_lineno_ptr = list;
3287 last_lineno_ptr = &list->next;
3288 }
3289 }
3290 \f
3291 /* Make sure the @stabs symbol is emitted. */
3292
3293 static void
3294 mark_stabs (ignore)
3295 int ignore;
3296 {
3297 if (! stabs_seen)
3298 {
3299 /* Add a dummy @stabs dymbol. */
3300 stabs_seen = 1;
3301 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3302 (symbolS *) NULL,
3303 (symint_t) -1, MIPS_MARK_STAB (0));
3304 }
3305 }
3306 \f
3307 /* Parse .stabs directives.
3308
3309 .stabs directives have five fields:
3310 "string" a string, encoding the type information.
3311 code a numeric code, defined in <stab.h>
3312 0 a zero
3313 0 a zero or line number
3314 value a numeric value or an address.
3315
3316 If the value is relocatable, we transform this into:
3317 iss points as an index into string space
3318 value value from lookup of the name
3319 st st from lookup of the name
3320 sc sc from lookup of the name
3321 index code|CODE_MASK
3322
3323 If the value is not relocatable, we transform this into:
3324 iss points as an index into string space
3325 value value
3326 st st_Nil
3327 sc sc_Nil
3328 index code|CODE_MASK
3329
3330 .stabn directives have four fields (string is null):
3331 code a numeric code, defined in <stab.h>
3332 0 a zero
3333 0 a zero or a line number
3334 value a numeric value or an address. */
3335
3336 static void
3337 obj_ecoff_stab (type)
3338 int type;
3339 {
3340 char *string;
3341 efdr_t *save_file_ptr = cur_file_ptr;
3342 symint_t code;
3343 symint_t value;
3344 symbolS *sym;
3345 st_t st;
3346 sc_t sc;
3347
3348 if (cur_file_ptr == (efdr_t *) NULL)
3349 {
3350 add_file ((const char *) NULL, 0);
3351 save_file_ptr = cur_file_ptr;
3352 }
3353
3354 if (stabs_seen == 0)
3355 mark_stabs (0);
3356
3357 if (type != 's')
3358 string = (char *) NULL;
3359 else
3360 {
3361 int len;
3362
3363 string = demand_copy_C_string (&len);
3364 SKIP_WHITESPACE ();
3365 if (*input_line_pointer == ',')
3366 input_line_pointer++;
3367 else
3368 {
3369 as_warn ("Bad .stab%c directive", type);
3370 demand_empty_rest_of_line ();
3371 return;
3372 }
3373 }
3374
3375 code = (symint_t) get_absolute_expression ();
3376
3377 SKIP_WHITESPACE ();
3378 if (*input_line_pointer++ != ',')
3379 {
3380 as_warn ("Bad .stab%c directive", type);
3381 --input_line_pointer;
3382 demand_empty_rest_of_line ();
3383 return;
3384 }
3385
3386 if (get_absolute_expression () != 0)
3387 {
3388 as_warn ("Bad .stab%c directive (expected 0)", type);
3389 demand_empty_rest_of_line ();
3390 return;
3391 }
3392
3393 SKIP_WHITESPACE ();
3394 if (*input_line_pointer++ != ',')
3395 {
3396 as_warn ("Bad .stab%c directive", type);
3397 --input_line_pointer;
3398 demand_empty_rest_of_line ();
3399 return;
3400 }
3401
3402 /* Line number stabs are handled differently, since they have two values,
3403 the line number and the address of the label. We use the index field
3404 (aka code) to hold the line number, and the value field to hold the
3405 address. The symbol type is st_Label, which should be different from
3406 the other stabs, so that gdb can recognize it. */
3407 if (code == N_SLINE)
3408 {
3409 SYMR dummy_symr;
3410 char *name;
3411 char name_end;
3412
3413 code = (symint_t) get_absolute_expression ();
3414
3415 #ifndef NO_LISTING
3416 if (listing)
3417 listing_source_line (code);
3418 #endif
3419
3420 if (*input_line_pointer++ != ',')
3421 {
3422 as_warn ("Bad .stab%c directive", type);
3423 --input_line_pointer;
3424 demand_empty_rest_of_line ();
3425 return;
3426 }
3427
3428 dummy_symr.index = code;
3429 if (dummy_symr.index != code)
3430 {
3431 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3432 code, type);
3433 demand_empty_rest_of_line ();
3434 return;
3435 }
3436
3437 SKIP_WHITESPACE ();
3438 name = input_line_pointer;
3439 name_end = get_symbol_end ();
3440
3441 sym = symbol_find_or_make (name);
3442 *input_line_pointer = name_end;
3443
3444 value = 0;
3445 st = st_Label;
3446 sc = sc_Text;
3447 }
3448 else
3449 {
3450 #ifndef NO_LISTING
3451 if (listing && (code == N_SO || code == N_SOL))
3452 listing_source_file (string);
3453 #endif
3454
3455 /* The next number is sometimes the line number of the
3456 declaration. We have nowhere to put it, so we just ignore
3457 it. */
3458 (void) get_absolute_expression ();
3459
3460 SKIP_WHITESPACE ();
3461 if (*input_line_pointer++ != ',')
3462 {
3463 as_warn ("Bad .stab%c directive", type);
3464 --input_line_pointer;
3465 demand_empty_rest_of_line ();
3466 return;
3467 }
3468
3469 SKIP_WHITESPACE ();
3470 if (isdigit (*input_line_pointer)
3471 || *input_line_pointer == '-'
3472 || *input_line_pointer == '+')
3473 {
3474 st = st_Nil;
3475 sc = sc_Nil;
3476 sym = (symbolS *) NULL;
3477 value = get_absolute_expression ();
3478 }
3479 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3480 {
3481 as_warn ("Illegal .stab%c directive, bad character", type);
3482 demand_empty_rest_of_line ();
3483 return;
3484 }
3485 else
3486 {
3487 char *name;
3488 char name_end;
3489
3490 name = input_line_pointer;
3491 name_end = get_symbol_end ();
3492
3493 sym = symbol_find_or_make (name);
3494
3495 sc = sc_Nil;
3496 st = st_Nil;
3497 value = 0;
3498
3499 *input_line_pointer = name_end;
3500 if (name_end == '+' || name_end == '-')
3501 {
3502 ++input_line_pointer;
3503 value = get_absolute_expression ();
3504 if (name_end == '-')
3505 value = - value;
3506 }
3507 }
3508
3509 code = MIPS_MARK_STAB (code);
3510 }
3511
3512 (void) add_ecoff_symbol (string, st, sc, sym, value, code);
3513
3514 /* Restore normal file type. */
3515 cur_file_ptr = save_file_ptr;
3516 }
3517 \f
3518 /* Add bytes to the symbolic information buffer. */
3519
3520 static char *
3521 ecoff_add_bytes (buf, bufend, bufptr, need)
3522 char **buf;
3523 char **bufend;
3524 char *bufptr;
3525 long need;
3526 {
3527 unsigned long at;
3528 unsigned long want;
3529
3530 at = bufptr - *buf;
3531 need -= *bufend - bufptr;
3532 if (need < PAGE_SIZE)
3533 need = PAGE_SIZE;
3534 want = (*bufend - *buf) + need;
3535 *buf = xrealloc (*buf, want);
3536 *bufend = *buf + want;
3537 return *buf + at;
3538 }
3539
3540 /* Adjust the symbolic information buffer to a longword boundary. */
3541
3542 static long
3543 ecoff_longword_adjust (buf, bufend, offset, bufptrptr)
3544 char **buf;
3545 char **bufend;
3546 long offset;
3547 char **bufptrptr;
3548 {
3549 if ((offset & 3) != 0)
3550 {
3551 long add;
3552
3553 add = 4 - (offset & 3);
3554 if (*bufend - (*buf + offset) < add)
3555 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3556 memset (*buf + offset, 0, add);
3557 offset += add;
3558 if (bufptrptr != (char **) NULL)
3559 *bufptrptr = *buf + offset;
3560 }
3561
3562 return offset;
3563 }
3564
3565 /* Build the line number information. */
3566
3567 static long
3568 ecoff_build_lineno (buf, bufend, offset, linecntptr)
3569 char **buf;
3570 char **bufend;
3571 long offset;
3572 long *linecntptr;
3573 {
3574 char *bufptr;
3575 register lineno_list_t *l;
3576 lineno_list_t *last;
3577 efdr_t *file;
3578 proc_t *proc;
3579 long c;
3580 long iline;
3581 long totcount;
3582
3583 if (linecntptr != (long *) NULL)
3584 *linecntptr = 0;
3585
3586 bufptr = *buf + offset;
3587
3588 file = (efdr_t *) NULL;
3589 proc = (proc_t *) NULL;
3590 last = (lineno_list_t *) NULL;
3591 c = offset;
3592 iline = 0;
3593 totcount = 0;
3594 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3595 {
3596 long count;
3597 long delta;
3598
3599 /* Get the offset to the memory address of the next line number
3600 (in words). Do this first, so that we can skip ahead to the
3601 next useful line number entry. */
3602 if (l->next == (lineno_list_t *) NULL)
3603 count = 0;
3604 else
3605 {
3606 count = ((l->next->frag->fr_address + l->next->paddr
3607 - (l->frag->fr_address + l->paddr))
3608 >> 2);
3609 if (count <= 0)
3610 {
3611 /* Don't change last, so we still get the right delta. */
3612 continue;
3613 }
3614 }
3615
3616 if (l->file != file || l->proc != proc)
3617 {
3618 if (l->proc != proc && proc != (proc_t *) NULL)
3619 proc->pdr.lnHigh = last->lineno;
3620 if (l->file != file && file != (efdr_t *) NULL)
3621 {
3622 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3623 /* The cline field is ill-documented. This is a guess
3624 at the right value. */
3625 file->fdr.cline = totcount + count;
3626 if (linecntptr != (long *) NULL)
3627 *linecntptr += totcount + count;
3628 totcount = 0;
3629 }
3630
3631 if (l->file != file)
3632 {
3633 file = l->file;
3634 file->fdr.ilineBase = iline;
3635 file->fdr.cbLineOffset = c;
3636 }
3637 if (l->proc != proc)
3638 {
3639 proc = l->proc;
3640 if (proc != (proc_t *) NULL)
3641 {
3642 proc->pdr.lnLow = l->lineno;
3643 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3644 /* The iline field is ill-documented. This is a
3645 guess at the right value. */
3646 proc->pdr.iline = totcount;
3647 }
3648 }
3649
3650 last = (lineno_list_t *) NULL;
3651 }
3652
3653 totcount += count;
3654
3655 /* Get the offset to this line number. */
3656 if (last == (lineno_list_t *) NULL)
3657 delta = 0;
3658 else
3659 delta = l->lineno - last->lineno;
3660
3661 /* Put in the offset to this line number. */
3662 while (delta != 0)
3663 {
3664 int setcount;
3665
3666 /* 1 is added to each count read. */
3667 --count;
3668 /* We can only adjust the word count by up to 15 words at a
3669 time. */
3670 if (count <= 0x0f)
3671 {
3672 setcount = count;
3673 count = 0;
3674 }
3675 else
3676 {
3677 setcount = 0x0f;
3678 count -= 0x0f;
3679 }
3680 if (delta >= -7 && delta <= 7)
3681 {
3682 if (bufptr >= *bufend)
3683 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3684 *bufptr++ = setcount + (delta << 4);
3685 delta = 0;
3686 ++c;
3687 }
3688 else
3689 {
3690 int set;
3691
3692 if (*bufend - bufptr < 3)
3693 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3694 *bufptr++ = setcount + (8 << 4);
3695 if (delta < -0x8000)
3696 {
3697 set = -0x8000;
3698 delta += 0x8000;
3699 }
3700 else if (delta > 0x7fff)
3701 {
3702 set = 0x7fff;
3703 delta -= 0x7fff;
3704 }
3705 else
3706 {
3707 set = delta;
3708 delta = 0;
3709 }
3710 *bufptr++ = set >> 8;
3711 *bufptr++ = set & 0xffff;
3712 c += 3;
3713 }
3714 }
3715
3716 /* Finish adjusting the count. */
3717 while (count > 0)
3718 {
3719 if (bufptr >= *bufend)
3720 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3721 /* 1 is added to each count read. */
3722 --count;
3723 if (count > 0x0f)
3724 {
3725 *bufptr++ = 0x0f;
3726 count -= 0x0f;
3727 }
3728 else
3729 {
3730 *bufptr++ = count;
3731 count = 0;
3732 }
3733 ++c;
3734 }
3735
3736 ++iline;
3737 last = l;
3738 }
3739
3740 if (proc != (proc_t *) NULL)
3741 proc->pdr.lnHigh = last->lineno;
3742 if (file != (efdr_t *) NULL)
3743 {
3744 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3745 file->fdr.cline = totcount;
3746 }
3747
3748 if (linecntptr != (long *) NULL)
3749 *linecntptr += totcount;
3750
3751 c = ecoff_longword_adjust (buf, bufend, c, &bufptr);
3752
3753 return c;
3754 }
3755
3756 /* Build and swap out the symbols. */
3757
3758 static long
3759 ecoff_build_symbols (buf,
3760 bufend,
3761 offset,
3762 extbuf,
3763 extbufend,
3764 extoffset,
3765 ext_strings,
3766 ext_str_hash)
3767 char **buf;
3768 char **bufend;
3769 long offset;
3770 char **extbuf;
3771 char **extbufend;
3772 long *extoffset;
3773 varray_t *ext_strings;
3774 struct hash_control *ext_str_hash;
3775 {
3776 struct sym_ext *sym_out;
3777 struct ext_ext *ext_out;
3778 long isym;
3779 long iext;
3780 vlinks_t *file_link;
3781
3782 sym_out = (struct sym_ext *) (*buf + offset);
3783 ext_out = (struct ext_ext *) (*extbuf + *extoffset);
3784
3785 isym = 0;
3786 iext = 0;
3787
3788 /* The symbols are stored by file. */
3789 for (file_link = file_desc.first;
3790 file_link != (vlinks_t *) NULL;
3791 file_link = file_link->next)
3792 {
3793 int ifilesym;
3794 int fil_cnt;
3795 efdr_t *fil_ptr;
3796 efdr_t *fil_end;
3797
3798 if (file_link->next == (vlinks_t *) NULL)
3799 fil_cnt = file_desc.objects_last_page;
3800 else
3801 fil_cnt = file_desc.objects_per_page;
3802 fil_ptr = file_link->datum->file;
3803 fil_end = fil_ptr + fil_cnt;
3804 for (; fil_ptr < fil_end; fil_ptr++)
3805 {
3806 vlinks_t *sym_link;
3807
3808 fil_ptr->fdr.isymBase = isym;
3809 ifilesym = isym;
3810 for (sym_link = fil_ptr->symbols.first;
3811 sym_link != (vlinks_t *) NULL;
3812 sym_link = sym_link->next)
3813 {
3814 int sym_cnt;
3815 localsym_t *sym_ptr;
3816 localsym_t *sym_end;
3817
3818 if (sym_link->next == (vlinks_t *) NULL)
3819 sym_cnt = fil_ptr->symbols.objects_last_page;
3820 else
3821 sym_cnt = fil_ptr->symbols.objects_per_page;
3822 sym_ptr = sym_link->datum->sym;
3823 sym_end = sym_ptr + sym_cnt;
3824 for (; sym_ptr < sym_end; sym_ptr++)
3825 {
3826 int local;
3827 symbolS *as_sym;
3828 forward_t *f;
3829
3830 know (sym_ptr->file_ptr == fil_ptr);
3831
3832 /* If there is no associated gas symbol, then this
3833 is a pure debugging symbol. We have already
3834 added the name (if any) to fil_ptr->strings.
3835 Otherwise we must decide whether this is an
3836 external or a local symbol (actually, it may be
3837 both if the local provides additional debugging
3838 information for the external). */
3839 local = 1;
3840 as_sym = sym_ptr->as_sym;
3841 if (as_sym != (symbolS *) NULL)
3842 {
3843 symint_t indx;
3844
3845 /* The value of a block start symbol is the
3846 offset from the start of the procedure. For
3847 other symbols we just use the gas value. */
3848 if (sym_ptr->ecoff_sym.st == (int) st_Block
3849 && sym_ptr->ecoff_sym.sc == (int) sc_Text)
3850 {
3851 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3852 sym_ptr->ecoff_sym.value =
3853 (bfd_asymbol_value (as_sym->bsym)
3854 - bfd_asymbol_value (sym_ptr->proc_ptr->sym
3855 ->as_sym->bsym));
3856 }
3857 else
3858 sym_ptr->ecoff_sym.value =
3859 bfd_asymbol_value (as_sym->bsym);
3860
3861 /* Set st_Proc to st_StaticProc for local
3862 functions. */
3863 if (sym_ptr->ecoff_sym.st == st_Proc
3864 && S_IS_DEFINED (as_sym)
3865 && ! S_IS_EXTERNAL (as_sym))
3866 sym_ptr->ecoff_sym.st = st_StaticProc;
3867
3868 /* Get the type and storage class based on where
3869 the symbol actually wound up. Traditionally,
3870 N_LBRAC and N_RBRAC are *not* relocated. */
3871 indx = sym_ptr->ecoff_sym.index;
3872 if (sym_ptr->ecoff_sym.st == st_Nil
3873 && sym_ptr->ecoff_sym.sc == sc_Nil
3874 && (! MIPS_IS_STAB (&sym_ptr->ecoff_sym)
3875 || ((MIPS_UNMARK_STAB (indx) != N_LBRAC)
3876 && (MIPS_UNMARK_STAB (indx) != N_RBRAC))))
3877 {
3878 segT seg;
3879 const char *segname;
3880 st_t st;
3881 sc_t sc;
3882
3883 seg = S_GET_SEGMENT (as_sym);
3884 segname = segment_name (seg);
3885
3886 if (S_IS_EXTERNAL (as_sym)
3887 || ! S_IS_DEFINED (as_sym))
3888 st = st_Global;
3889 else if (seg == text_section)
3890 st = st_Label;
3891 else
3892 st = st_Static;
3893
3894 if (! S_IS_DEFINED (as_sym)
3895 || as_sym->ecoff_undefined)
3896 {
3897 if (S_GET_VALUE (as_sym) > 0
3898 && (S_GET_VALUE (as_sym)
3899 <= bfd_get_gp_size (stdoutput)))
3900 sc = sc_SUndefined;
3901 else
3902 sc = sc_Undefined;
3903 }
3904 else if (S_IS_COMMON (as_sym))
3905 {
3906 if (S_GET_VALUE (as_sym) > 0
3907 && (S_GET_VALUE (as_sym)
3908 <= bfd_get_gp_size (stdoutput)))
3909 sc = sc_SCommon;
3910 else
3911 sc = sc_Common;
3912 }
3913 else if (seg == text_section)
3914 sc = sc_Text;
3915 else if (seg == data_section)
3916 sc = sc_Data;
3917 else if (strcmp (segname, ".rdata") == 0)
3918 sc = sc_RData;
3919 else if (strcmp (segname, ".sdata") == 0)
3920 sc = sc_SData;
3921 else if (seg == bss_section)
3922 sc = sc_Bss;
3923 else if (strcmp (segname, ".sbss") == 0)
3924 sc = sc_SBss;
3925 else if (seg == &bfd_abs_section)
3926 sc = sc_Abs;
3927 else
3928 abort ();
3929
3930 sym_ptr->ecoff_sym.st = (int) st;
3931 sym_ptr->ecoff_sym.sc = (int) sc;
3932 }
3933
3934 /* This is just an external symbol if it is
3935 outside a procedure and it has a type.
3936 FIXME: g++ will generate symbols which have
3937 different names in the debugging information
3938 than the actual symbol. Should we handle
3939 them here? */
3940 if ((S_IS_EXTERNAL (as_sym)
3941 || ! S_IS_DEFINED (as_sym))
3942 && sym_ptr->proc_ptr == (proc_t *) NULL
3943 && sym_ptr->ecoff_sym.st != (int) st_Nil
3944 && ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
3945 local = 0;
3946
3947 /* If an st_end symbol has an associated gas
3948 symbol, then it is a local label created for
3949 a .bend or .end directive. Stabs line
3950 numbers will have \001 in the names. */
3951 if (local
3952 && sym_ptr->ecoff_sym.st != st_End
3953 && strchr (sym_ptr->name, '\001') == 0)
3954 sym_ptr->ecoff_sym.iss =
3955 add_string (&fil_ptr->strings,
3956 fil_ptr->str_hash,
3957 sym_ptr->name,
3958 (shash_t **) NULL);
3959 }
3960
3961 /* We now know the index of this symbol; fill in
3962 locations that have been waiting for that
3963 information. */
3964 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3965 {
3966 localsym_t *begin_ptr;
3967 st_t begin_type;
3968
3969 know (local);
3970 begin_ptr = sym_ptr->begin_ptr;
3971 know (begin_ptr->sym_index != -1);
3972 sym_ptr->ecoff_sym.index = begin_ptr->sym_index;
3973 if (sym_ptr->ecoff_sym.sc != (int) sc_Info)
3974 sym_ptr->ecoff_sym.iss = begin_ptr->ecoff_sym.iss;
3975
3976 begin_type = begin_ptr->ecoff_sym.st;
3977 if (begin_type == st_File
3978 || begin_type == st_Block)
3979 {
3980 begin_ptr->ecoff_sym.index = isym - ifilesym + 1;
3981 ecoff_swap_sym_out (stdoutput,
3982 &begin_ptr->ecoff_sym,
3983 (((struct sym_ext *)
3984 (*buf + offset))
3985 + begin_ptr->sym_index));
3986 }
3987 else
3988 {
3989 know (begin_ptr->index_ptr != (aux_t *) NULL);
3990 begin_ptr->index_ptr->data.isym =
3991 isym - ifilesym + 1;
3992 }
3993
3994 /* The value of the symbol marking the end of a
3995 procedure is the size of the procedure. The
3996 value of the symbol marking the end of a
3997 block is the offset from the start of the
3998 procedure to the block. */
3999 if (begin_type == st_Proc)
4000 {
4001 know (as_sym != (symbolS *) NULL);
4002 know (begin_ptr->as_sym != (symbolS *) NULL);
4003 sym_ptr->ecoff_sym.value =
4004 (bfd_asymbol_value (as_sym->bsym)
4005 - bfd_asymbol_value (begin_ptr->as_sym->bsym));
4006 }
4007 else if (begin_type == st_Block
4008 && sym_ptr->ecoff_sym.sc != (int) sc_Info)
4009 {
4010 know (as_sym != (symbolS *) NULL);
4011 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4012 sym_ptr->ecoff_sym.value =
4013 (bfd_asymbol_value (as_sym->bsym)
4014 - bfd_asymbol_value (sym_ptr->proc_ptr->sym
4015 ->as_sym->bsym));
4016 }
4017 }
4018
4019 for (f = sym_ptr->forward_ref;
4020 f != (forward_t *) NULL;
4021 f = f->next)
4022 {
4023 know (local);
4024 f->ifd_ptr->data.isym = fil_ptr->file_index;
4025 f->index_ptr->data.rndx.index = isym - ifilesym;
4026 }
4027
4028 if (local)
4029 {
4030 if (*bufend - (char *) sym_out < sizeof (struct sym_ext))
4031 sym_out = ((struct sym_ext *)
4032 ecoff_add_bytes (buf, bufend,
4033 (char *) sym_out,
4034 sizeof (struct sym_ext)));
4035 ecoff_swap_sym_out (stdoutput, &sym_ptr->ecoff_sym,
4036 sym_out);
4037 ++sym_out;
4038
4039 sym_ptr->sym_index = isym;
4040
4041 if (sym_ptr->proc_ptr != (proc_t *) NULL
4042 && sym_ptr->proc_ptr->sym == sym_ptr)
4043 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4044
4045 ++isym;
4046 }
4047
4048 /* If this is an external symbol, swap it out. */
4049 if (as_sym != (symbolS *) NULL
4050 && (S_IS_EXTERNAL (as_sym)
4051 || ! S_IS_DEFINED (as_sym))
4052 && ! MIPS_IS_STAB (&sym_ptr->ecoff_sym))
4053 {
4054 EXTR ext;
4055
4056 memset (&ext, 0, sizeof ext);
4057 ext.asym = sym_ptr->ecoff_sym;
4058 if (sym_ptr->ecoff_sym.st == st_Proc
4059 || sym_ptr->ecoff_sym.st == st_StaticProc)
4060 {
4061 know (local);
4062 ext.asym.index = isym - ifilesym - 1;
4063 }
4064 ext.ifd = fil_ptr->file_index;
4065 ext.asym.iss = add_string (ext_strings,
4066 ext_str_hash,
4067 S_GET_NAME (as_sym),
4068 (shash_t **) NULL);
4069 if (*extbufend - (char *) ext_out
4070 < sizeof (struct ext_ext))
4071 ext_out = ((struct ext_ext *)
4072 ecoff_add_bytes (extbuf, extbufend,
4073 (char *) ext_out,
4074 sizeof (struct ext_ext)));
4075 ecoff_swap_ext_out (stdoutput, &ext, ext_out);
4076 ecoff_set_sym_index (as_sym->bsym, iext);
4077 ++ext_out;
4078 ++iext;
4079 }
4080 }
4081 }
4082 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4083 }
4084 }
4085
4086 *extoffset += iext * sizeof (struct ext_ext);
4087 return offset + isym * sizeof (struct sym_ext);
4088 }
4089
4090 /* Swap out the procedure information. */
4091
4092 static long
4093 ecoff_build_procs (buf, bufend, offset)
4094 char **buf;
4095 char **bufend;
4096 long offset;
4097 {
4098 struct pdr_ext *pdr_out;
4099 int first_fil;
4100 long iproc;
4101 vlinks_t *file_link;
4102
4103 pdr_out = (struct pdr_ext *) (*buf + offset);
4104
4105 first_fil = 1;
4106 iproc = 0;
4107
4108 /* The procedures are stored by file. */
4109 for (file_link = file_desc.first;
4110 file_link != (vlinks_t *) NULL;
4111 file_link = file_link->next)
4112 {
4113 int fil_cnt;
4114 efdr_t *fil_ptr;
4115 efdr_t *fil_end;
4116
4117 if (file_link->next == (vlinks_t *) NULL)
4118 fil_cnt = file_desc.objects_last_page;
4119 else
4120 fil_cnt = file_desc.objects_per_page;
4121 fil_ptr = file_link->datum->file;
4122 fil_end = fil_ptr + fil_cnt;
4123 for (; fil_ptr < fil_end; fil_ptr++)
4124 {
4125 vlinks_t *proc_link;
4126 int first;
4127
4128 fil_ptr->fdr.ipdFirst = iproc;
4129 first = 1;
4130 for (proc_link = fil_ptr->procs.first;
4131 proc_link != (vlinks_t *) NULL;
4132 proc_link = proc_link->next)
4133 {
4134 int proc_cnt;
4135 proc_t *proc_ptr;
4136 proc_t *proc_end;
4137
4138 if (proc_link->next == (vlinks_t *) NULL)
4139 proc_cnt = fil_ptr->procs.objects_last_page;
4140 else
4141 proc_cnt = fil_ptr->procs.objects_per_page;
4142 proc_ptr = proc_link->datum->proc;
4143 proc_end = proc_ptr + proc_cnt;
4144 for (; proc_ptr < proc_end; proc_ptr++)
4145 {
4146 unsigned long adr;
4147
4148 adr = bfd_asymbol_value (proc_ptr->sym->as_sym->bsym);
4149 if (first)
4150 {
4151 if (first_fil)
4152 first_fil = 0;
4153 else
4154 fil_ptr->fdr.adr = adr;
4155 first = 0;
4156 }
4157 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4158 if (*bufend - (char *) pdr_out < sizeof (struct pdr_ext))
4159 pdr_out = ((struct pdr_ext *)
4160 ecoff_add_bytes (buf, bufend,
4161 (char *) pdr_out,
4162 sizeof (struct pdr_ext)));
4163 ecoff_swap_pdr_out (stdoutput, &proc_ptr->pdr, pdr_out);
4164 ++pdr_out;
4165 ++iproc;
4166 }
4167 }
4168 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4169 }
4170 }
4171
4172 return offset + iproc * sizeof (struct pdr_ext);
4173 }
4174
4175 /* Swap out the aux information. */
4176
4177 static long
4178 ecoff_build_aux (buf, bufend, offset)
4179 char **buf;
4180 char **bufend;
4181 long offset;
4182 {
4183 int bigendian;
4184 union aux_ext *aux_out;
4185 long iaux;
4186 vlinks_t *file_link;
4187
4188 bigendian = stdoutput->xvec->header_byteorder_big_p;
4189
4190 aux_out = (union aux_ext *) (*buf + offset);
4191
4192 iaux = 0;
4193
4194 /* The aux entries are stored by file. */
4195 for (file_link = file_desc.first;
4196 file_link != (vlinks_t *) NULL;
4197 file_link = file_link->next)
4198 {
4199 int fil_cnt;
4200 efdr_t *fil_ptr;
4201 efdr_t *fil_end;
4202
4203 if (file_link->next == (vlinks_t *) NULL)
4204 fil_cnt = file_desc.objects_last_page;
4205 else
4206 fil_cnt = file_desc.objects_per_page;
4207 fil_ptr = file_link->datum->file;
4208 fil_end = fil_ptr + fil_cnt;
4209 for (; fil_ptr < fil_end; fil_ptr++)
4210 {
4211 vlinks_t *aux_link;
4212
4213 fil_ptr->fdr.fBigendian = bigendian;
4214 fil_ptr->fdr.iauxBase = iaux;
4215 for (aux_link = fil_ptr->aux_syms.first;
4216 aux_link != (vlinks_t *) NULL;
4217 aux_link = aux_link->next)
4218 {
4219 int aux_cnt;
4220 aux_t *aux_ptr;
4221 aux_t *aux_end;
4222
4223 if (aux_link->next == (vlinks_t *) NULL)
4224 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4225 else
4226 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4227 aux_ptr = aux_link->datum->aux;
4228 aux_end = aux_ptr + aux_cnt;
4229 for (; aux_ptr < aux_end; aux_ptr++)
4230 {
4231 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4232 aux_out = ((union aux_ext *)
4233 ecoff_add_bytes (buf, bufend,
4234 (char *) aux_out,
4235 sizeof (union aux_ext)));
4236 switch (aux_ptr->type)
4237 {
4238 case aux_tir:
4239 ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
4240 &aux_out->a_ti);
4241 break;
4242 case aux_rndx:
4243 ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
4244 &aux_out->a_rndx);
4245 break;
4246 case aux_dnLow:
4247 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4248 aux_out);
4249 break;
4250 case aux_dnHigh:
4251 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4252 aux_out);
4253 break;
4254 case aux_isym:
4255 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4256 aux_out);
4257 break;
4258 case aux_iss:
4259 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4260 aux_out);
4261 break;
4262 case aux_width:
4263 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4264 aux_out);
4265 break;
4266 case aux_count:
4267 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4268 aux_out);
4269 break;
4270 }
4271
4272 ++aux_out;
4273 ++iaux;
4274 }
4275 }
4276 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4277 }
4278 }
4279
4280 return offset + iaux * sizeof (union aux_ext);
4281 }
4282
4283 /* Copy out the strings from a varray_t. This returns the number of
4284 bytes copied, rather than the new offset. */
4285
4286 static long
4287 ecoff_build_strings (buf, bufend, offset, vp)
4288 char **buf;
4289 char **bufend;
4290 long offset;
4291 varray_t *vp;
4292 {
4293 long istr;
4294 char *str_out;
4295 vlinks_t *str_link;
4296
4297 str_out = *buf + offset;
4298
4299 istr = 0;
4300
4301 for (str_link = vp->first;
4302 str_link != (vlinks_t *) NULL;
4303 str_link = str_link->next)
4304 {
4305 long str_cnt;
4306
4307 if (str_link->next == (vlinks_t *) NULL)
4308 str_cnt = vp->objects_last_page;
4309 else
4310 str_cnt = vp->objects_per_page;
4311
4312 if (*bufend - str_out < str_cnt)
4313 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4314
4315 memcpy (str_out, str_link->datum->byte, str_cnt);
4316 str_out += str_cnt;
4317 istr += str_cnt;
4318 }
4319
4320 return istr;
4321 }
4322
4323 /* Dump out the local strings. */
4324
4325 static long
4326 ecoff_build_ss (buf, bufend, offset)
4327 char **buf;
4328 char **bufend;
4329 long offset;
4330 {
4331 long iss;
4332 vlinks_t *file_link;
4333
4334 iss = 0;
4335
4336 for (file_link = file_desc.first;
4337 file_link != (vlinks_t *) NULL;
4338 file_link = file_link->next)
4339 {
4340 int fil_cnt;
4341 efdr_t *fil_ptr;
4342 efdr_t *fil_end;
4343
4344 if (file_link->next == (vlinks_t *) NULL)
4345 fil_cnt = file_desc.objects_last_page;
4346 else
4347 fil_cnt = file_desc.objects_per_page;
4348 fil_ptr = file_link->datum->file;
4349 fil_end = fil_ptr + fil_cnt;
4350 for (; fil_ptr < fil_end; fil_ptr++)
4351 {
4352 long ss_cnt;
4353
4354 fil_ptr->fdr.issBase = iss;
4355 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4356 &fil_ptr->strings);
4357 fil_ptr->fdr.cbSs = ss_cnt;
4358 iss += ss_cnt;
4359 }
4360 }
4361
4362 return ecoff_longword_adjust (buf, bufend, offset + iss, (char **) NULL);
4363 }
4364
4365 /* Swap out the file descriptors. */
4366
4367 static long
4368 ecoff_build_fdr (buf, bufend, offset)
4369 char **buf;
4370 char **bufend;
4371 long offset;
4372 {
4373 long ifile;
4374 struct fdr_ext *fdr_out;
4375 vlinks_t *file_link;
4376
4377 ifile = 0;
4378
4379 fdr_out = (struct fdr_ext *) (*buf + offset);
4380
4381 for (file_link = file_desc.first;
4382 file_link != (vlinks_t *) NULL;
4383 file_link = file_link->next)
4384 {
4385 int fil_cnt;
4386 efdr_t *fil_ptr;
4387 efdr_t *fil_end;
4388
4389 if (file_link->next == (vlinks_t *) NULL)
4390 fil_cnt = file_desc.objects_last_page;
4391 else
4392 fil_cnt = file_desc.objects_per_page;
4393 fil_ptr = file_link->datum->file;
4394 fil_end = fil_ptr + fil_cnt;
4395 for (; fil_ptr < fil_end; fil_ptr++)
4396 {
4397 if (*bufend - (char *) fdr_out < sizeof (struct fdr_ext))
4398 fdr_out = ((struct fdr_ext *)
4399 ecoff_add_bytes (buf, bufend, (char *) fdr_out,
4400 sizeof (struct fdr_ext)));
4401 ecoff_swap_fdr_out (stdoutput, &fil_ptr->fdr, fdr_out);
4402 ++fdr_out;
4403 ++ifile;
4404 }
4405 }
4406
4407 return offset + ifile * sizeof (struct fdr_ext);
4408 }
4409
4410 /* Swap out the symbols and debugging information for BFD. */
4411
4412 void
4413 ecoff_frob_file ()
4414 {
4415 tag_t *ptag;
4416 tag_t *ptag_next;
4417 efdr_t *fil_ptr;
4418 int end_warning;
4419 efdr_t *hold_file_ptr;
4420 proc_t * hold_proc_ptr;
4421 bfd_vma addr;
4422 asection *sec;
4423 symbolS *sym;
4424 HDRR *hdr;
4425 char *buf;
4426 char *bufend;
4427 long offset;
4428 char *extbuf;
4429 char *extbufend;
4430 long extoffset;
4431 varray_t ext_strings;
4432 static varray_t init_ext_strings = INIT_VARRAY (char);
4433 struct hash_control *ext_str_hash;
4434 char *set;
4435
4436 /* Make sure we have a file. */
4437 if (first_file == (efdr_t *) NULL)
4438 add_file ((const char *) NULL, 0);
4439
4440 /* Handle any top level tags. */
4441 for (ptag = top_tag_head->first_tag;
4442 ptag != (tag_t *) NULL;
4443 ptag = ptag_next)
4444 {
4445 if (ptag->forward_ref != (forward_t *) NULL)
4446 add_unknown_tag (ptag);
4447
4448 ptag_next = ptag->same_block;
4449 ptag->hash_ptr->tag_ptr = ptag->same_name;
4450 free_tag (ptag);
4451 }
4452
4453 free_thead (top_tag_head);
4454
4455 /* Output an ending symbol for all the files. We have to do this
4456 here for the last file, so we may as well do it for all of the
4457 files. */
4458 end_warning = 0;
4459 for (fil_ptr = first_file;
4460 fil_ptr != (efdr_t *) NULL;
4461 fil_ptr = fil_ptr->next_file)
4462 {
4463 cur_file_ptr = fil_ptr;
4464 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4465 {
4466 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4467 if (! end_warning)
4468 {
4469 as_warn ("Missing .end or .bend at end of file");
4470 end_warning = 1;
4471 }
4472 }
4473 (void) add_ecoff_symbol ((const char *) NULL,
4474 st_End, sc_Text,
4475 (symbolS *) NULL,
4476 (symint_t) 0,
4477 (symint_t) 0);
4478 }
4479
4480 /* Set the section VMA values. */
4481 addr = 0;
4482 for (sec = stdoutput->sections; sec != (asection *) NULL; sec = sec->next)
4483 {
4484 bfd_set_section_vma (stdoutput, sec, addr);
4485 addr += bfd_section_size (stdoutput, sec);
4486 }
4487
4488 /* Look through the symbols. Add debugging information for each
4489 symbol that has not already received it. */
4490 hold_file_ptr = cur_file_ptr;
4491 hold_proc_ptr = cur_proc_ptr;
4492 cur_proc_ptr = (proc_t *) NULL;
4493 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4494 {
4495 if (sym->ecoff_symbol
4496 || sym->ecoff_file == (efdr_t *) NULL
4497 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4498 continue;
4499
4500 cur_file_ptr = sym->ecoff_file;
4501 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4502 bfd_asymbol_value (sym->bsym), indexNil);
4503 }
4504 cur_proc_ptr = hold_proc_ptr;
4505 cur_file_ptr = hold_file_ptr;
4506
4507 /* Build the symbolic information. */
4508 hdr = &ecoff_data (stdoutput)->symbolic_header;
4509 offset = 0;
4510 buf = xmalloc (PAGE_SIZE);
4511 bufend = buf + PAGE_SIZE;
4512
4513 /* Build the line number information. */
4514 hdr->cbLineOffset = offset;
4515 offset = ecoff_build_lineno (&buf, &bufend, offset, &hdr->ilineMax);
4516 hdr->cbLine = offset - hdr->cbLineOffset;
4517
4518 /* We don't use dense numbers at all. */
4519 hdr->idnMax = 0;
4520 hdr->cbDnOffset = 0;
4521
4522 /* We can't build the PDR table until we have built the symbols,
4523 because a PDR contains a symbol index. However, we set aside
4524 space at this point. */
4525 hdr->ipdMax = proc_cnt;
4526 hdr->cbPdOffset = offset;
4527 if (bufend - (buf + offset) < proc_cnt * sizeof (struct pdr_ext))
4528 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4529 proc_cnt * sizeof (struct pdr_ext));
4530 offset += proc_cnt * sizeof (struct pdr_ext);
4531
4532 /* Build the symbols. It's convenient to build both the local and
4533 external symbols at the same time. We can put the local symbols
4534 directly into the buffer, but we have to hold the external
4535 symbols apart until we know where they are going to go. */
4536 extbuf = xmalloc (PAGE_SIZE);
4537 extbufend = extbuf + PAGE_SIZE;
4538 extoffset = 0;
4539 ext_strings = init_ext_strings;
4540 ext_str_hash = hash_new ();
4541 hdr->cbSymOffset = offset;
4542 offset = ecoff_build_symbols (&buf, &bufend, offset,
4543 &extbuf, &extbufend, &extoffset,
4544 &ext_strings, ext_str_hash);
4545 hdr->isymMax = (offset - hdr->cbSymOffset) / sizeof (struct sym_ext);
4546
4547 /* Building the symbols initializes the symbol index in the PDR's.
4548 Now we can swap out the PDR's. */
4549 (void) ecoff_build_procs (&buf, &bufend, hdr->cbPdOffset);
4550
4551 /* We don't use optimization symbols. */
4552 hdr->ioptMax = 0;
4553 hdr->cbOptOffset = 0;
4554
4555 /* Swap out the auxiliary type information. */
4556 hdr->cbAuxOffset = offset;
4557 offset = ecoff_build_aux (&buf, &bufend, offset);
4558 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4559
4560 /* Copy out the local strings. */
4561 hdr->cbSsOffset = offset;
4562 offset = ecoff_build_ss (&buf, &bufend, offset);
4563 hdr->issMax = offset - hdr->cbSsOffset;
4564
4565 /* Copy out the external strings. */
4566 hdr->cbSsExtOffset = offset;
4567 offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
4568 offset = ecoff_longword_adjust (&buf, &bufend, offset, (char **) NULL);
4569 hdr->issExtMax = offset - hdr->cbSsExtOffset;
4570
4571 /* We don't use relative file descriptors. */
4572 hdr->crfd = 0;
4573 hdr->cbRfdOffset = 0;
4574
4575 /* Swap out the file descriptors. */
4576 hdr->cbFdOffset = offset;
4577 offset = ecoff_build_fdr (&buf, &bufend, offset);
4578 hdr->ifdMax = (offset - hdr->cbFdOffset) / sizeof (struct fdr_ext);
4579
4580 /* Copy out the external symbols. */
4581 hdr->cbExtOffset = offset;
4582 if (bufend - (buf + offset) < extoffset)
4583 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
4584 memcpy (buf + offset, extbuf, extoffset);
4585 offset += extoffset;
4586 hdr->iextMax = (offset - hdr->cbExtOffset) / sizeof (struct ext_ext);
4587
4588 know ((offset & 3) == 0);
4589
4590 /* That completes the symbolic debugging information. We must now
4591 finish up the symbolic header and the ecoff_tdata structure. */
4592 set = buf;
4593 #define SET(ptr, count, type) \
4594 ecoff_data (stdoutput)->ptr = (type *) set; \
4595 set += hdr->count * sizeof (type)
4596
4597 SET (line, cbLine, unsigned char);
4598 SET (external_dnr, idnMax, struct dnr_ext);
4599 SET (external_pdr, ipdMax, struct pdr_ext);
4600 SET (external_sym, isymMax, struct sym_ext);
4601 SET (external_opt, ioptMax, struct opt_ext);
4602 SET (external_aux, iauxMax, union aux_ext);
4603 SET (ss, issMax, char);
4604 SET (ssext, issExtMax, char);
4605 SET (external_rfd, crfd, struct rfd_ext);
4606 SET (external_fdr, ifdMax, struct fdr_ext);
4607 SET (external_ext, iextMax, struct ext_ext);
4608
4609 #undef SET
4610
4611 /* FIXME: set the register masks. */
4612
4613 ecoff_data (stdoutput)->raw_size = offset;
4614 ecoff_data (stdoutput)->raw_syments = buf;
4615
4616 hdr->magic = magicSym;
4617 /* FIXME: what should hdr->vstamp be? */
4618
4619 bfd_set_symtab (stdoutput, bfd_get_outsymbols (stdoutput),
4620 hdr->isymMax + hdr->iextMax);
4621 }
4622 \f
4623 /* Allocate a cluster of pages. */
4624
4625 #ifndef MALLOC_CHECK
4626
4627 static page_t *
4628 allocate_cluster (npages)
4629 unsigned long npages;
4630 {
4631 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4632
4633 #ifdef ECOFF_DEBUG
4634 if (debug > 3)
4635 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4636 #endif
4637
4638 memset (value, 0, npages * PAGE_USIZE);
4639
4640 return value;
4641 }
4642
4643
4644 static page_t *cluster_ptr = NULL;
4645 static unsigned long pages_left = 0;
4646
4647 #endif /* MALLOC_CHECK */
4648
4649 /* Allocate one page (which is initialized to 0). */
4650
4651 static page_t *
4652 allocate_page ()
4653 {
4654 #ifndef MALLOC_CHECK
4655
4656 if (pages_left == 0)
4657 {
4658 pages_left = MAX_CLUSTER_PAGES;
4659 cluster_ptr = allocate_cluster (pages_left);
4660 }
4661
4662 pages_left--;
4663 return cluster_ptr++;
4664
4665 #else /* MALLOC_CHECK */
4666
4667 page_t *ptr;
4668
4669 ptr = xmalloc (PAGE_USIZE);
4670 memset (ptr, 0, PAGE_USIZE);
4671 return ptr;
4672
4673 #endif /* MALLOC_CHECK */
4674 }
4675 \f
4676 /* Allocate scoping information. */
4677
4678 static scope_t *
4679 allocate_scope ()
4680 {
4681 register scope_t *ptr;
4682 static scope_t initial_scope;
4683
4684 #ifndef MALLOC_CHECK
4685
4686 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4687 if (ptr != (scope_t *) NULL)
4688 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4689 else
4690 {
4691 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4692 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4693
4694 if (unallocated == 0)
4695 {
4696 unallocated = PAGE_SIZE / sizeof (scope_t);
4697 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4698 alloc_counts[(int)alloc_type_scope].total_pages++;
4699 }
4700
4701 ptr = &cur_page->scope[--unallocated];
4702 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4703 }
4704
4705 #else
4706
4707 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4708
4709 #endif
4710
4711 alloc_counts[(int)alloc_type_scope].total_alloc++;
4712 *ptr = initial_scope;
4713 return ptr;
4714 }
4715
4716 /* Free scoping information. */
4717
4718 static void
4719 free_scope (ptr)
4720 scope_t *ptr;
4721 {
4722 alloc_counts[(int)alloc_type_scope].total_free++;
4723
4724 #ifndef MALLOC_CHECK
4725 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4726 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4727 #else
4728 free ((PTR) ptr);
4729 #endif
4730 }
4731 \f
4732 /* Allocate links for pages in a virtual array. */
4733
4734 static vlinks_t *
4735 allocate_vlinks ()
4736 {
4737 register vlinks_t *ptr;
4738 static vlinks_t initial_vlinks;
4739
4740 #ifndef MALLOC_CHECK
4741
4742 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4743 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4744
4745 if (unallocated == 0)
4746 {
4747 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4748 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4749 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4750 }
4751
4752 ptr = &cur_page->vlinks[--unallocated];
4753 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4754
4755 #else
4756
4757 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4758
4759 #endif
4760
4761 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4762 *ptr = initial_vlinks;
4763 return ptr;
4764 }
4765 \f
4766 /* Allocate string hash buckets. */
4767
4768 static shash_t *
4769 allocate_shash ()
4770 {
4771 register shash_t *ptr;
4772 static shash_t initial_shash;
4773
4774 #ifndef MALLOC_CHECK
4775
4776 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4777 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4778
4779 if (unallocated == 0)
4780 {
4781 unallocated = PAGE_SIZE / sizeof (shash_t);
4782 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4783 alloc_counts[(int)alloc_type_shash].total_pages++;
4784 }
4785
4786 ptr = &cur_page->shash[--unallocated];
4787 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4788
4789 #else
4790
4791 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4792
4793 #endif
4794
4795 alloc_counts[(int)alloc_type_shash].total_alloc++;
4796 *ptr = initial_shash;
4797 return ptr;
4798 }
4799 \f
4800 /* Allocate type hash buckets. */
4801
4802 static thash_t *
4803 allocate_thash ()
4804 {
4805 register thash_t *ptr;
4806 static thash_t initial_thash;
4807
4808 #ifndef MALLOC_CHECK
4809
4810 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4811 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4812
4813 if (unallocated == 0)
4814 {
4815 unallocated = PAGE_SIZE / sizeof (thash_t);
4816 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4817 alloc_counts[(int)alloc_type_thash].total_pages++;
4818 }
4819
4820 ptr = &cur_page->thash[--unallocated];
4821 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4822
4823 #else
4824
4825 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4826
4827 #endif
4828
4829 alloc_counts[(int)alloc_type_thash].total_alloc++;
4830 *ptr = initial_thash;
4831 return ptr;
4832 }
4833 \f
4834 /* Allocate structure, union, or enum tag information. */
4835
4836 static tag_t *
4837 allocate_tag ()
4838 {
4839 register tag_t *ptr;
4840 static tag_t initial_tag;
4841
4842 #ifndef MALLOC_CHECK
4843
4844 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4845 if (ptr != (tag_t *) NULL)
4846 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4847 else
4848 {
4849 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4850 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4851
4852 if (unallocated == 0)
4853 {
4854 unallocated = PAGE_SIZE / sizeof (tag_t);
4855 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4856 alloc_counts[(int)alloc_type_tag].total_pages++;
4857 }
4858
4859 ptr = &cur_page->tag[--unallocated];
4860 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4861 }
4862
4863 #else
4864
4865 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4866
4867 #endif
4868
4869 alloc_counts[(int)alloc_type_tag].total_alloc++;
4870 *ptr = initial_tag;
4871 return ptr;
4872 }
4873
4874 /* Free scoping information. */
4875
4876 static void
4877 free_tag (ptr)
4878 tag_t *ptr;
4879 {
4880 alloc_counts[(int)alloc_type_tag].total_free++;
4881
4882 #ifndef MALLOC_CHECK
4883 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4884 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4885 #else
4886 free ((PTR_T) ptr);
4887 #endif
4888 }
4889 \f
4890 /* Allocate forward reference to a yet unknown tag. */
4891
4892 static forward_t *
4893 allocate_forward ()
4894 {
4895 register forward_t *ptr;
4896 static forward_t initial_forward;
4897
4898 #ifndef MALLOC_CHECK
4899
4900 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4901 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4902
4903 if (unallocated == 0)
4904 {
4905 unallocated = PAGE_SIZE / sizeof (forward_t);
4906 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4907 alloc_counts[(int)alloc_type_forward].total_pages++;
4908 }
4909
4910 ptr = &cur_page->forward[--unallocated];
4911 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4912
4913 #else
4914
4915 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4916
4917 #endif
4918
4919 alloc_counts[(int)alloc_type_forward].total_alloc++;
4920 *ptr = initial_forward;
4921 return ptr;
4922 }
4923 \f
4924 /* Allocate head of type hash list. */
4925
4926 static thead_t *
4927 allocate_thead ()
4928 {
4929 register thead_t *ptr;
4930 static thead_t initial_thead;
4931
4932 #ifndef MALLOC_CHECK
4933
4934 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4935 if (ptr != (thead_t *) NULL)
4936 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4937 else
4938 {
4939 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4940 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4941
4942 if (unallocated == 0)
4943 {
4944 unallocated = PAGE_SIZE / sizeof (thead_t);
4945 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4946 alloc_counts[(int)alloc_type_thead].total_pages++;
4947 }
4948
4949 ptr = &cur_page->thead[--unallocated];
4950 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4951 }
4952
4953 #else
4954
4955 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4956
4957 #endif
4958
4959 alloc_counts[(int)alloc_type_thead].total_alloc++;
4960 *ptr = initial_thead;
4961 return ptr;
4962 }
4963
4964 /* Free scoping information. */
4965
4966 static void
4967 free_thead (ptr)
4968 thead_t *ptr;
4969 {
4970 alloc_counts[(int)alloc_type_thead].total_free++;
4971
4972 #ifndef MALLOC_CHECK
4973 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4974 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4975 #else
4976 free ((PTR_T) ptr);
4977 #endif
4978 }
4979 \f
4980 static lineno_list_t *
4981 allocate_lineno_list ()
4982 {
4983 register lineno_list_t *ptr;
4984 static lineno_list_t initial_lineno_list;
4985
4986 #ifndef MALLOC_CHECK
4987
4988 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4989 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4990
4991 if (unallocated == 0)
4992 {
4993 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4994 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
4995 alloc_counts[(int)alloc_type_lineno].total_pages++;
4996 }
4997
4998 ptr = &cur_page->lineno[--unallocated];
4999 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5000
5001 #else
5002
5003 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5004
5005 #endif
5006
5007 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5008 *ptr = initial_lineno_list;
5009 return ptr;
5010 }
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