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* Many files: Added gettext invocations around user-visible
[thirdparty/binutils-gdb.git] / gas / ecoff.c
1 /* ECOFF debugging support.
2 Copyright (C) 1993, 94, 95, 96, 97, 98 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 the Free
22 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 02111-1307, USA. */
24
25 #include "as.h"
26
27 /* This file is compiled conditionally for those targets which use
28 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
29 ECOFF). */
30
31 #ifdef ECOFF_DEBUGGING
32
33 #include "coff/internal.h"
34 #include "coff/symconst.h"
35 #include "ecoff.h"
36 #include "aout/stab_gnu.h"
37
38 #include <ctype.h>
39
40 /* Why isn't this in coff/sym.h? */
41 #define ST_RFDESCAPE 0xfff
42
43 /* This file constructs the information used by the ECOFF debugging
44 format. It just builds a large block of data.
45
46 We support both ECOFF style debugging and stabs debugging (the
47 stabs symbols are encapsulated in ECOFF symbols). This should let
48 us handle anything the compiler might throw at us. */
49
50 /* Here is a brief description of the MIPS ECOFF symbol table, by
51 Michael Meissner. The MIPS symbol table has the following pieces:
52
53 Symbolic Header
54 |
55 +-- Auxiliary Symbols
56 |
57 +-- Dense number table
58 |
59 +-- Optimizer Symbols
60 |
61 +-- External Strings
62 |
63 +-- External Symbols
64 |
65 +-- Relative file descriptors
66 |
67 +-- File table
68 |
69 +-- Procedure table
70 |
71 +-- Line number table
72 |
73 +-- Local Strings
74 |
75 +-- Local Symbols
76
77 The symbolic header points to each of the other tables, and also
78 contains the number of entries. It also contains a magic number
79 and MIPS compiler version number, such as 2.0.
80
81 The auxiliary table is a series of 32 bit integers, that are
82 referenced as needed from the local symbol table. Unlike standard
83 COFF, the aux. information does not follow the symbol that uses
84 it, but rather is a separate table. In theory, this would allow
85 the MIPS compilers to collapse duplicate aux. entries, but I've not
86 noticed this happening with the 1.31 compiler suite. The different
87 types of aux. entries are:
88
89 1) dnLow: Low bound on array dimension.
90
91 2) dnHigh: High bound on array dimension.
92
93 3) isym: Index to the local symbol which is the start of the
94 function for the end of function first aux. entry.
95
96 4) width: Width of structures and bitfields.
97
98 5) count: Count of ranges for variant part.
99
100 6) rndx: A relative index into the symbol table. The relative
101 index field has two parts: rfd which is a pointer into the
102 relative file index table or ST_RFDESCAPE which says the next
103 aux. entry is the file number, and index: which is the pointer
104 into the local symbol within a given file table. This is for
105 things like references to types defined in another file.
106
107 7) Type information: This is like the COFF type bits, except it
108 is 32 bits instead of 16; they still have room to add new
109 basic types; and they can handle more than 6 levels of array,
110 pointer, function, etc. Each type information field contains
111 the following structure members:
112
113 a) fBitfield: a bit that says this is a bitfield, and the
114 size in bits follows as the next aux. entry.
115
116 b) continued: a bit that says the next aux. entry is a
117 continuation of the current type information (in case
118 there are more than 6 levels of array/ptr/function).
119
120 c) bt: an integer containing the base type before adding
121 array, pointer, function, etc. qualifiers. The
122 current base types that I have documentation for are:
123
124 btNil -- undefined
125 btAdr -- address - integer same size as ptr
126 btChar -- character
127 btUChar -- unsigned character
128 btShort -- short
129 btUShort -- unsigned short
130 btInt -- int
131 btUInt -- unsigned int
132 btLong -- long
133 btULong -- unsigned long
134 btFloat -- float (real)
135 btDouble -- Double (real)
136 btStruct -- Structure (Record)
137 btUnion -- Union (variant)
138 btEnum -- Enumerated
139 btTypedef -- defined via a typedef isymRef
140 btRange -- subrange of int
141 btSet -- pascal sets
142 btComplex -- fortran complex
143 btDComplex -- fortran double complex
144 btIndirect -- forward or unnamed typedef
145 btFixedDec -- Fixed Decimal
146 btFloatDec -- Float Decimal
147 btString -- Varying Length Character String
148 btBit -- Aligned Bit String
149 btPicture -- Picture
150 btVoid -- Void (MIPS cc revision >= 2.00)
151
152 d) tq0 - tq5: type qualifier fields as needed. The
153 current type qualifier fields I have documentation for
154 are:
155
156 tqNil -- no more qualifiers
157 tqPtr -- pointer
158 tqProc -- procedure
159 tqArray -- array
160 tqFar -- 8086 far pointers
161 tqVol -- volatile
162
163
164 The dense number table is used in the front ends, and disappears by
165 the time the .o is created.
166
167 With the 1.31 compiler suite, the optimization symbols don't seem
168 to be used as far as I can tell.
169
170 The linker is the first entity that creates the relative file
171 descriptor table, and I believe it is used so that the individual
172 file table pointers don't have to be rewritten when the objects are
173 merged together into the program file.
174
175 Unlike COFF, the basic symbol & string tables are split into
176 external and local symbols/strings. The relocation information
177 only goes off of the external symbol table, and the debug
178 information only goes off of the internal symbol table. The
179 external symbols can have links to an appropriate file index and
180 symbol within the file to give it the appropriate type information.
181 Because of this, the external symbols are actually larger than the
182 internal symbols (to contain the link information), and contain the
183 local symbol structure as a member, though this member is not the
184 first member of the external symbol structure (!). I suspect this
185 split is to make strip easier to deal with.
186
187 Each file table has offsets for where the line numbers, local
188 strings, local symbols, and procedure table starts from within the
189 global tables, and the indexs are reset to 0 for each of those
190 tables for the file.
191
192 The procedure table contains the binary equivalents of the .ent
193 (start of the function address), .frame (what register is the
194 virtual frame pointer, constant offset from the register to obtain
195 the VFP, and what register holds the return address), .mask/.fmask
196 (bitmask of saved registers, and where the first register is stored
197 relative to the VFP) assembler directives. It also contains the
198 low and high bounds of the line numbers if debugging is turned on.
199
200 The line number table is a compressed form of the normal COFF line
201 table. Each line number entry is either 1 or 3 bytes long, and
202 contains a signed delta from the previous line, and an unsigned
203 count of the number of instructions this statement takes.
204
205 The local symbol table contains the following fields:
206
207 1) iss: index to the local string table giving the name of the
208 symbol.
209
210 2) value: value of the symbol (address, register number, etc.).
211
212 3) st: symbol type. The current symbol types are:
213
214 stNil -- Nuthin' special
215 stGlobal -- external symbol
216 stStatic -- static
217 stParam -- procedure argument
218 stLocal -- local variable
219 stLabel -- label
220 stProc -- External Procedure
221 stBlock -- beginning of block
222 stEnd -- end (of anything)
223 stMember -- member (of anything)
224 stTypedef -- type definition
225 stFile -- file name
226 stRegReloc -- register relocation
227 stForward -- forwarding address
228 stStaticProc -- Static procedure
229 stConstant -- const
230
231 4) sc: storage class. The current storage classes are:
232
233 scText -- text symbol
234 scData -- initialized data symbol
235 scBss -- un-initialized data symbol
236 scRegister -- value of symbol is register number
237 scAbs -- value of symbol is absolute
238 scUndefined -- who knows?
239 scCdbLocal -- variable's value is IN se->va.??
240 scBits -- this is a bit field
241 scCdbSystem -- value is IN debugger's address space
242 scRegImage -- register value saved on stack
243 scInfo -- symbol contains debugger information
244 scUserStruct -- addr in struct user for current process
245 scSData -- load time only small data
246 scSBss -- load time only small common
247 scRData -- load time only read only data
248 scVar -- Var parameter (fortranpascal)
249 scCommon -- common variable
250 scSCommon -- small common
251 scVarRegister -- Var parameter in a register
252 scVariant -- Variant record
253 scSUndefined -- small undefined(external) data
254 scInit -- .init section symbol
255
256 5) index: pointer to a local symbol or aux. entry.
257
258
259
260 For the following program:
261
262 #include <stdio.h>
263
264 main(){
265 printf("Hello World!\n");
266 return 0;
267 }
268
269 Mips-tdump produces the following information:
270
271 Global file header:
272 magic number 0x162
273 # sections 2
274 timestamp 645311799, Wed Jun 13 17:16:39 1990
275 symbolic header offset 284
276 symbolic header size 96
277 optional header 56
278 flags 0x0
279
280 Symbolic header, magic number = 0x7009, vstamp = 1.31:
281
282 Info Offset Number Bytes
283 ==== ====== ====== =====
284
285 Line numbers 380 4 4 [13]
286 Dense numbers 0 0 0
287 Procedures Tables 384 1 52
288 Local Symbols 436 16 192
289 Optimization Symbols 0 0 0
290 Auxiliary Symbols 628 39 156
291 Local Strings 784 80 80
292 External Strings 864 144 144
293 File Tables 1008 2 144
294 Relative Files 0 0 0
295 External Symbols 1152 20 320
296
297 File #0, "hello2.c"
298
299 Name index = 1 Readin = No
300 Merge = No Endian = LITTLE
301 Debug level = G2 Language = C
302 Adr = 0x00000000
303
304 Info Start Number Size Offset
305 ==== ===== ====== ==== ======
306 Local strings 0 15 15 784
307 Local symbols 0 6 72 436
308 Line numbers 0 13 13 380
309 Optimization symbols 0 0 0 0
310 Procedures 0 1 52 384
311 Auxiliary symbols 0 14 56 628
312 Relative Files 0 0 0 0
313
314 There are 6 local symbols, starting at 436
315
316 Symbol# 0: "hello2.c"
317 End+1 symbol = 6
318 String index = 1
319 Storage class = Text Index = 6
320 Symbol type = File Value = 0
321
322 Symbol# 1: "main"
323 End+1 symbol = 5
324 Type = int
325 String index = 10
326 Storage class = Text Index = 12
327 Symbol type = Proc Value = 0
328
329 Symbol# 2: ""
330 End+1 symbol = 4
331 String index = 0
332 Storage class = Text Index = 4
333 Symbol type = Block Value = 8
334
335 Symbol# 3: ""
336 First symbol = 2
337 String index = 0
338 Storage class = Text Index = 2
339 Symbol type = End Value = 28
340
341 Symbol# 4: "main"
342 First symbol = 1
343 String index = 10
344 Storage class = Text Index = 1
345 Symbol type = End Value = 52
346
347 Symbol# 5: "hello2.c"
348 First symbol = 0
349 String index = 1
350 Storage class = Text Index = 0
351 Symbol type = End Value = 0
352
353 There are 14 auxiliary table entries, starting at 628.
354
355 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
356 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
357 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
358 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
359 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
360 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
361 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
362 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
363 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
364 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
365 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
366 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
367 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
368 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
369
370 There are 1 procedure descriptor entries, starting at 0.
371
372 Procedure descriptor 0:
373 Name index = 10 Name = "main"
374 .mask 0x80000000,-4 .fmask 0x00000000,0
375 .frame $29,24,$31
376 Opt. start = -1 Symbols start = 1
377 First line # = 3 Last line # = 6
378 Line Offset = 0 Address = 0x00000000
379
380 There are 4 bytes holding line numbers, starting at 380.
381 Line 3, delta 0, count 2
382 Line 4, delta 1, count 3
383 Line 5, delta 1, count 2
384 Line 6, delta 1, count 6
385
386 File #1, "/usr/include/stdio.h"
387
388 Name index = 1 Readin = No
389 Merge = Yes Endian = LITTLE
390 Debug level = G2 Language = C
391 Adr = 0x00000000
392
393 Info Start Number Size Offset
394 ==== ===== ====== ==== ======
395 Local strings 15 65 65 799
396 Local symbols 6 10 120 508
397 Line numbers 0 0 0 380
398 Optimization symbols 0 0 0 0
399 Procedures 1 0 0 436
400 Auxiliary symbols 14 25 100 684
401 Relative Files 0 0 0 0
402
403 There are 10 local symbols, starting at 442
404
405 Symbol# 0: "/usr/include/stdio.h"
406 End+1 symbol = 10
407 String index = 1
408 Storage class = Text Index = 10
409 Symbol type = File Value = 0
410
411 Symbol# 1: "_iobuf"
412 End+1 symbol = 9
413 String index = 22
414 Storage class = Info Index = 9
415 Symbol type = Block Value = 20
416
417 Symbol# 2: "_cnt"
418 Type = int
419 String index = 29
420 Storage class = Info Index = 4
421 Symbol type = Member Value = 0
422
423 Symbol# 3: "_ptr"
424 Type = ptr to char
425 String index = 34
426 Storage class = Info Index = 15
427 Symbol type = Member Value = 32
428
429 Symbol# 4: "_base"
430 Type = ptr to char
431 String index = 39
432 Storage class = Info Index = 16
433 Symbol type = Member Value = 64
434
435 Symbol# 5: "_bufsiz"
436 Type = int
437 String index = 45
438 Storage class = Info Index = 4
439 Symbol type = Member Value = 96
440
441 Symbol# 6: "_flag"
442 Type = short
443 String index = 53
444 Storage class = Info Index = 3
445 Symbol type = Member Value = 128
446
447 Symbol# 7: "_file"
448 Type = char
449 String index = 59
450 Storage class = Info Index = 2
451 Symbol type = Member Value = 144
452
453 Symbol# 8: ""
454 First symbol = 1
455 String index = 0
456 Storage class = Info Index = 1
457 Symbol type = End Value = 0
458
459 Symbol# 9: "/usr/include/stdio.h"
460 First symbol = 0
461 String index = 1
462 Storage class = Text Index = 0
463 Symbol type = End Value = 0
464
465 There are 25 auxiliary table entries, starting at 642.
466
467 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
468 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
470 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
471 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
472 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
473 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
474 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
475 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
476 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
477 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
478 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492
493 There are 0 procedure descriptor entries, starting at 1.
494
495 There are 20 external symbols, starting at 1152
496
497 Symbol# 0: "_iob"
498 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
499 String index = 0 Ifd = 1
500 Storage class = Nil Index = 17
501 Symbol type = Global Value = 60
502
503 Symbol# 1: "fopen"
504 String index = 5 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 2: "fdopen"
509 String index = 11 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 3: "freopen"
514 String index = 18 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 4: "popen"
519 String index = 26 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 5: "tmpfile"
524 String index = 32 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 6: "ftell"
529 String index = 40 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 7: "rewind"
534 String index = 46 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 8: "setbuf"
539 String index = 53 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 9: "setbuffer"
544 String index = 60 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 10: "setlinebuf"
549 String index = 70 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 11: "fgets"
554 String index = 81 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 12: "gets"
559 String index = 87 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 13: "ctermid"
564 String index = 92 Ifd = 1
565 Storage class = Nil Index = 1048575
566 Symbol type = Proc Value = 0
567
568 Symbol# 14: "cuserid"
569 String index = 100 Ifd = 1
570 Storage class = Nil Index = 1048575
571 Symbol type = Proc Value = 0
572
573 Symbol# 15: "tempnam"
574 String index = 108 Ifd = 1
575 Storage class = Nil Index = 1048575
576 Symbol type = Proc Value = 0
577
578 Symbol# 16: "tmpnam"
579 String index = 116 Ifd = 1
580 Storage class = Nil Index = 1048575
581 Symbol type = Proc Value = 0
582
583 Symbol# 17: "sprintf"
584 String index = 123 Ifd = 1
585 Storage class = Nil Index = 1048575
586 Symbol type = Proc Value = 0
587
588 Symbol# 18: "main"
589 Type = int
590 String index = 131 Ifd = 0
591 Storage class = Text Index = 1
592 Symbol type = Proc Value = 0
593
594 Symbol# 19: "printf"
595 String index = 136 Ifd = 0
596 Storage class = Undefined Index = 1048575
597 Symbol type = Proc Value = 0
598
599 The following auxiliary table entries were unused:
600
601 #0 0 0x00000000 void
602 #2 8 0x00000008 char
603 #3 16 0x00000010 short
604 #4 24 0x00000018 int
605 #5 32 0x00000020 long
606 #6 40 0x00000028 float
607 #7 44 0x0000002c double
608 #8 12 0x0000000c unsigned char
609 #9 20 0x00000014 unsigned short
610 #10 28 0x0000001c unsigned int
611 #11 36 0x00000024 unsigned long
612 #14 0 0x00000000 void
613 #15 24 0x00000018 int
614 #19 32 0x00000020 long
615 #20 40 0x00000028 float
616 #21 44 0x0000002c double
617 #22 12 0x0000000c unsigned char
618 #23 20 0x00000014 unsigned short
619 #24 28 0x0000001c unsigned int
620 #25 36 0x00000024 unsigned long
621 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
622 */
623 \f
624 /* Redefinition of of storage classes as an enumeration for better
625 debugging. */
626
627 typedef enum sc {
628 sc_Nil = scNil, /* no storage class */
629 sc_Text = scText, /* text symbol */
630 sc_Data = scData, /* initialized data symbol */
631 sc_Bss = scBss, /* un-initialized data symbol */
632 sc_Register = scRegister, /* value of symbol is register number */
633 sc_Abs = scAbs, /* value of symbol is absolute */
634 sc_Undefined = scUndefined, /* who knows? */
635 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
636 sc_Bits = scBits, /* this is a bit field */
637 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
638 sc_RegImage = scRegImage, /* register value saved on stack */
639 sc_Info = scInfo, /* symbol contains debugger information */
640 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
641 sc_SData = scSData, /* load time only small data */
642 sc_SBss = scSBss, /* load time only small common */
643 sc_RData = scRData, /* load time only read only data */
644 sc_Var = scVar, /* Var parameter (fortran,pascal) */
645 sc_Common = scCommon, /* common variable */
646 sc_SCommon = scSCommon, /* small common */
647 sc_VarRegister = scVarRegister, /* Var parameter in a register */
648 sc_Variant = scVariant, /* Variant record */
649 sc_SUndefined = scSUndefined, /* small undefined(external) data */
650 sc_Init = scInit, /* .init section symbol */
651 sc_Max = scMax /* Max storage class+1 */
652 } sc_t;
653
654 /* Redefinition of symbol type. */
655
656 typedef enum st {
657 st_Nil = stNil, /* Nuthin' special */
658 st_Global = stGlobal, /* external symbol */
659 st_Static = stStatic, /* static */
660 st_Param = stParam, /* procedure argument */
661 st_Local = stLocal, /* local variable */
662 st_Label = stLabel, /* label */
663 st_Proc = stProc, /* " " Procedure */
664 st_Block = stBlock, /* beginning of block */
665 st_End = stEnd, /* end (of anything) */
666 st_Member = stMember, /* member (of anything - struct/union/enum */
667 st_Typedef = stTypedef, /* type definition */
668 st_File = stFile, /* file name */
669 st_RegReloc = stRegReloc, /* register relocation */
670 st_Forward = stForward, /* forwarding address */
671 st_StaticProc = stStaticProc, /* load time only static procs */
672 st_Constant = stConstant, /* const */
673 st_Str = stStr, /* string */
674 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
675 st_Expr = stExpr, /* 2+2 vs. 4 */
676 st_Type = stType, /* post-coercion SER */
677 st_Max = stMax /* max type+1 */
678 } st_t;
679
680 /* Redefinition of type qualifiers. */
681
682 typedef enum tq {
683 tq_Nil = tqNil, /* bt is what you see */
684 tq_Ptr = tqPtr, /* pointer */
685 tq_Proc = tqProc, /* procedure */
686 tq_Array = tqArray, /* duh */
687 tq_Far = tqFar, /* longer addressing - 8086/8 land */
688 tq_Vol = tqVol, /* volatile */
689 tq_Max = tqMax /* Max type qualifier+1 */
690 } tq_t;
691
692 /* Redefinition of basic types. */
693
694 typedef enum bt {
695 bt_Nil = btNil, /* undefined */
696 bt_Adr = btAdr, /* address - integer same size as pointer */
697 bt_Char = btChar, /* character */
698 bt_UChar = btUChar, /* unsigned character */
699 bt_Short = btShort, /* short */
700 bt_UShort = btUShort, /* unsigned short */
701 bt_Int = btInt, /* int */
702 bt_UInt = btUInt, /* unsigned int */
703 bt_Long = btLong, /* long */
704 bt_ULong = btULong, /* unsigned long */
705 bt_Float = btFloat, /* float (real) */
706 bt_Double = btDouble, /* Double (real) */
707 bt_Struct = btStruct, /* Structure (Record) */
708 bt_Union = btUnion, /* Union (variant) */
709 bt_Enum = btEnum, /* Enumerated */
710 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
711 bt_Range = btRange, /* subrange of int */
712 bt_Set = btSet, /* pascal sets */
713 bt_Complex = btComplex, /* fortran complex */
714 bt_DComplex = btDComplex, /* fortran double complex */
715 bt_Indirect = btIndirect, /* forward or unnamed typedef */
716 bt_FixedDec = btFixedDec, /* Fixed Decimal */
717 bt_FloatDec = btFloatDec, /* Float Decimal */
718 bt_String = btString, /* Varying Length Character String */
719 bt_Bit = btBit, /* Aligned Bit String */
720 bt_Picture = btPicture, /* Picture */
721 bt_Void = btVoid, /* Void */
722 bt_Max = btMax /* Max basic type+1 */
723 } bt_t;
724
725 #define N_TQ itqMax
726
727 /* States for whether to hash type or not. */
728 typedef enum hash_state {
729 hash_no = 0, /* don't hash type */
730 hash_yes = 1, /* ok to hash type, or use previous hash */
731 hash_record = 2 /* ok to record hash, but don't use prev. */
732 } hash_state_t;
733
734 /* Types of different sized allocation requests. */
735 enum alloc_type {
736 alloc_type_none, /* dummy value */
737 alloc_type_scope, /* nested scopes linked list */
738 alloc_type_vlinks, /* glue linking pages in varray */
739 alloc_type_shash, /* string hash element */
740 alloc_type_thash, /* type hash element */
741 alloc_type_tag, /* struct/union/tag element */
742 alloc_type_forward, /* element to hold unknown tag */
743 alloc_type_thead, /* head of type hash list */
744 alloc_type_varray, /* general varray allocation */
745 alloc_type_lineno, /* line number list */
746 alloc_type_last /* last+1 element for array bounds */
747 };
748
749 /* Types of auxiliary type information. */
750 enum aux_type {
751 aux_tir, /* TIR type information */
752 aux_rndx, /* relative index into symbol table */
753 aux_dnLow, /* low dimension */
754 aux_dnHigh, /* high dimension */
755 aux_isym, /* symbol table index (end of proc) */
756 aux_iss, /* index into string space (not used) */
757 aux_width, /* width for non-default sized struc fields */
758 aux_count /* count of ranges for variant arm */
759 };
760 \f
761 /* Structures to provide n-number of virtual arrays, each of which can
762 grow linearly, and which are written in the object file as
763 sequential pages. On systems with a BSD malloc, the
764 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
765 malloc adds it's overhead, and rounds up to the next power of 2.
766 Pages are linked together via a linked list.
767
768 If PAGE_SIZE is > 4096, the string length in the shash_t structure
769 can't be represented (assuming there are strings > 4096 bytes). */
770
771 /* FIXME: Yes, there can be such strings while emitting C++ class debug
772 info. Templates are the offender here, the test case in question
773 having a mangled class name of
774
775 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
776 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
777
778 Repeat that a couple dozen times while listing the class members and
779 you've got strings over 4k. Hack around this for now by increasing
780 the page size. A proper solution would abandon this structure scheme
781 certainly for very large strings, and possibly entirely. */
782
783 #ifndef PAGE_SIZE
784 #define PAGE_SIZE (8*1024) /* size of varray pages */
785 #endif
786
787 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
788
789 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
790 #define MAX_CLUSTER_PAGES 63
791 #endif
792
793 /* Linked list connecting separate page allocations. */
794 typedef struct vlinks {
795 struct vlinks *prev; /* previous set of pages */
796 struct vlinks *next; /* next set of pages */
797 union page *datum; /* start of page */
798 unsigned long start_index; /* starting index # of page */
799 } vlinks_t;
800
801
802 /* Virtual array header. */
803 typedef struct varray {
804 vlinks_t *first; /* first page link */
805 vlinks_t *last; /* last page link */
806 unsigned long num_allocated; /* # objects allocated */
807 unsigned short object_size; /* size in bytes of each object */
808 unsigned short objects_per_page; /* # objects that can fit on a page */
809 unsigned short objects_last_page; /* # objects allocated on last page */
810 } varray_t;
811
812 #ifndef MALLOC_CHECK
813 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
814 #else
815 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
816 #endif
817
818 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
819 (vlinks_t *)0, /* first */ \
820 (vlinks_t *)0, /* last */ \
821 0, /* num_allocated */ \
822 sizeof (type), /* object_size */ \
823 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
824 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
825 }
826
827
828 /* Master type for indexes within the symbol table. */
829 typedef unsigned long symint_t;
830
831
832 /* Linked list support for nested scopes (file, block, structure, etc.). */
833 typedef struct scope {
834 struct scope *prev; /* previous scope level */
835 struct scope *free; /* free list pointer */
836 struct localsym *lsym; /* pointer to local symbol node */
837 st_t type; /* type of the node */
838 } scope_t;
839
840
841 /* For a local symbol we store a gas symbol as well as the debugging
842 information we generate. The gas symbol will be NULL if this is
843 only a debugging symbol. */
844 typedef struct localsym {
845 const char *name; /* symbol name */
846 symbolS *as_sym; /* symbol as seen by gas */
847 bfd_vma addend; /* addend to as_sym value */
848 struct efdr *file_ptr; /* file pointer */
849 struct ecoff_proc *proc_ptr; /* proc pointer */
850 struct localsym *begin_ptr; /* symbol at start of block */
851 struct ecoff_aux *index_ptr; /* index value to be filled in */
852 struct forward *forward_ref; /* forward references to this symbol */
853 long sym_index; /* final symbol index */
854 EXTR ecoff_sym; /* ECOFF debugging symbol */
855 } localsym_t;
856
857
858 /* For aux information we keep the type and the data. */
859 typedef struct ecoff_aux {
860 enum aux_type type; /* aux type */
861 AUXU data; /* aux data */
862 } aux_t;
863
864 /* For a procedure we store the gas symbol as well as the PDR
865 debugging information. */
866 typedef struct ecoff_proc {
867 localsym_t *sym; /* associated symbol */
868 PDR pdr; /* ECOFF debugging info */
869 } proc_t;
870
871 /* Number of proc_t structures allocated. */
872 static unsigned long proc_cnt;
873
874
875 /* Forward reference list for tags referenced, but not yet defined. */
876 typedef struct forward {
877 struct forward *next; /* next forward reference */
878 struct forward *free; /* free list pointer */
879 aux_t *ifd_ptr; /* pointer to store file index */
880 aux_t *index_ptr; /* pointer to store symbol index */
881 } forward_t;
882
883
884 /* Linked list support for tags. The first tag in the list is always
885 the current tag for that block. */
886 typedef struct tag {
887 struct tag *free; /* free list pointer */
888 struct shash *hash_ptr; /* pointer to the hash table head */
889 struct tag *same_name; /* tag with same name in outer scope */
890 struct tag *same_block; /* next tag defined in the same block. */
891 struct forward *forward_ref; /* list of forward references */
892 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
893 symint_t ifd; /* file # tag defined in */
894 localsym_t *sym; /* file's local symbols */
895 } tag_t;
896
897
898 /* Head of a block's linked list of tags. */
899 typedef struct thead {
900 struct thead *prev; /* previous block */
901 struct thead *free; /* free list pointer */
902 struct tag *first_tag; /* first tag in block defined */
903 } thead_t;
904
905
906 /* Union containing pointers to each the small structures which are freed up. */
907 typedef union small_free {
908 scope_t *f_scope; /* scope structure */
909 thead_t *f_thead; /* tag head structure */
910 tag_t *f_tag; /* tag element structure */
911 forward_t *f_forward; /* forward tag reference */
912 } small_free_t;
913
914
915 /* String hash table entry. */
916
917 typedef struct shash {
918 char *string; /* string we are hashing */
919 symint_t indx; /* index within string table */
920 EXTR *esym_ptr; /* global symbol pointer */
921 localsym_t *sym_ptr; /* local symbol pointer */
922 localsym_t *end_ptr; /* symbol pointer to end block */
923 tag_t *tag_ptr; /* tag pointer */
924 proc_t *proc_ptr; /* procedure descriptor pointer */
925 } shash_t;
926
927
928 /* Type hash table support. The size of the hash table must fit
929 within a page with the other extended file descriptor information.
930 Because unique types which are hashed are fewer in number than
931 strings, we use a smaller hash value. */
932
933 #define HASHBITS 30
934
935 #ifndef THASH_SIZE
936 #define THASH_SIZE 113
937 #endif
938
939 typedef struct thash {
940 struct thash *next; /* next hash value */
941 AUXU type; /* type we are hashing */
942 symint_t indx; /* index within string table */
943 } thash_t;
944
945
946 /* Extended file descriptor that contains all of the support necessary
947 to add things to each file separately. */
948 typedef struct efdr {
949 FDR fdr; /* File header to be written out */
950 FDR *orig_fdr; /* original file header */
951 char *name; /* filename */
952 int fake; /* whether this is faked .file */
953 symint_t void_type; /* aux. pointer to 'void' type */
954 symint_t int_type; /* aux. pointer to 'int' type */
955 scope_t *cur_scope; /* current nested scopes */
956 symint_t file_index; /* current file number */
957 int nested_scopes; /* # nested scopes */
958 varray_t strings; /* local strings */
959 varray_t symbols; /* local symbols */
960 varray_t procs; /* procedures */
961 varray_t aux_syms; /* auxiliary symbols */
962 struct efdr *next_file; /* next file descriptor */
963 /* string/type hash tables */
964 struct hash_control *str_hash; /* string hash table */
965 thash_t *thash_head[THASH_SIZE];
966 } efdr_t;
967
968 /* Pre-initialized extended file structure. */
969 static const efdr_t init_file =
970 {
971 { /* FDR structure */
972 0, /* adr: memory address of beginning of file */
973 0, /* rss: file name (of source, if known) */
974 0, /* issBase: file's string space */
975 0, /* cbSs: number of bytes in the ss */
976 0, /* isymBase: beginning of symbols */
977 0, /* csym: count file's of symbols */
978 0, /* ilineBase: file's line symbols */
979 0, /* cline: count of file's line symbols */
980 0, /* ioptBase: file's optimization entries */
981 0, /* copt: count of file's optimization entries */
982 0, /* ipdFirst: start of procedures for this file */
983 0, /* cpd: count of procedures for this file */
984 0, /* iauxBase: file's auxiliary entries */
985 0, /* caux: count of file's auxiliary entries */
986 0, /* rfdBase: index into the file indirect table */
987 0, /* crfd: count file indirect entries */
988 langC, /* lang: language for this file */
989 1, /* fMerge: whether this file can be merged */
990 0, /* fReadin: true if read in (not just created) */
991 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
992 GLEVEL_2, /* glevel: level this file was compiled with */
993 0, /* reserved: reserved for future use */
994 0, /* cbLineOffset: byte offset from header for this file ln's */
995 0, /* cbLine: size of lines for this file */
996 },
997
998 (FDR *)0, /* orig_fdr: original file header pointer */
999 (char *)0, /* name: pointer to filename */
1000 0, /* fake: whether this is a faked .file */
1001 0, /* void_type: ptr to aux node for void type */
1002 0, /* int_type: ptr to aux node for int type */
1003 (scope_t *)0, /* cur_scope: current scope being processed */
1004 0, /* file_index: current file # */
1005 0, /* nested_scopes: # nested scopes */
1006 INIT_VARRAY (char), /* strings: local string varray */
1007 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
1008 INIT_VARRAY (proc_t), /* procs: procedure varray */
1009 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1010
1011 (struct efdr *)0, /* next_file: next file structure */
1012
1013 (struct hash_control *)0, /* str_hash: string hash table */
1014 { 0 }, /* thash_head: type hash table */
1015 };
1016
1017
1018 static efdr_t *first_file; /* first file descriptor */
1019 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1020
1021
1022 /* Line number information is kept in a list until the assembly is
1023 finished. */
1024 typedef struct lineno_list {
1025 struct lineno_list *next; /* next element in list */
1026 efdr_t *file; /* file this line is in */
1027 proc_t *proc; /* procedure this line is in */
1028 fragS *frag; /* fragment this line number is in */
1029 unsigned long paddr; /* offset within fragment */
1030 long lineno; /* actual line number */
1031 } lineno_list_t;
1032
1033 static lineno_list_t *first_lineno;
1034 static lineno_list_t *last_lineno;
1035 static lineno_list_t **last_lineno_ptr = &first_lineno;
1036
1037 /* Sometimes there will be some .loc statements before a .ent. We
1038 keep them in this list so that we can fill in the procedure pointer
1039 after we see the .ent. */
1040 static lineno_list_t *noproc_lineno;
1041
1042 /* Union of various things that are held in pages. */
1043 typedef union page {
1044 char byte [ PAGE_SIZE ];
1045 unsigned char ubyte [ PAGE_SIZE ];
1046 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1047 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1048 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1049 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1050 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1051 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1052 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1053 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1054 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1055 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1056 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1057 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1058 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1059 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1060 } page_type;
1061
1062
1063 /* Structure holding allocation information for small sized structures. */
1064 typedef struct alloc_info {
1065 char *alloc_name; /* name of this allocation type (must be first) */
1066 page_type *cur_page; /* current page being allocated from */
1067 small_free_t free_list; /* current free list if any */
1068 int unallocated; /* number of elements unallocated on page */
1069 int total_alloc; /* total number of allocations */
1070 int total_free; /* total number of frees */
1071 int total_pages; /* total number of pages allocated */
1072 } alloc_info_t;
1073
1074
1075 /* Type information collected together. */
1076 typedef struct type_info {
1077 bt_t basic_type; /* basic type */
1078 int orig_type; /* original COFF-based type */
1079 int num_tq; /* # type qualifiers */
1080 int num_dims; /* # dimensions */
1081 int num_sizes; /* # sizes */
1082 int extra_sizes; /* # extra sizes not tied with dims */
1083 tag_t * tag_ptr; /* tag pointer */
1084 int bitfield; /* symbol is a bitfield */
1085 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1086 symint_t dimensions [N_TQ]; /* dimensions for each array */
1087 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1088 struct/union/enum + bitfield size */
1089 } type_info_t;
1090
1091 /* Pre-initialized type_info struct. */
1092 static const type_info_t type_info_init = {
1093 bt_Nil, /* basic type */
1094 T_NULL, /* original COFF-based type */
1095 0, /* # type qualifiers */
1096 0, /* # dimensions */
1097 0, /* # sizes */
1098 0, /* sizes not tied with dims */
1099 NULL, /* ptr to tag */
1100 0, /* bitfield */
1101 { /* type qualifiers */
1102 tq_Nil,
1103 tq_Nil,
1104 tq_Nil,
1105 tq_Nil,
1106 tq_Nil,
1107 tq_Nil,
1108 },
1109 { /* dimensions */
1110 0,
1111 0,
1112 0,
1113 0,
1114 0,
1115 0
1116 },
1117 { /* sizes */
1118 0,
1119 0,
1120 0,
1121 0,
1122 0,
1123 0,
1124 0,
1125 0,
1126 },
1127 };
1128
1129 /* Global hash table for the tags table and global table for file
1130 descriptors. */
1131
1132 static varray_t file_desc = INIT_VARRAY (efdr_t);
1133
1134 static struct hash_control *tag_hash;
1135
1136 /* Static types for int and void. Also, remember the last function's
1137 type (which is set up when we encounter the declaration for the
1138 function, and used when the end block for the function is emitted. */
1139
1140 static type_info_t int_type_info;
1141 static type_info_t void_type_info;
1142 static type_info_t last_func_type_info;
1143 static symbolS *last_func_sym_value;
1144
1145
1146 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1147 really should use bt_Void, but this causes the current ecoff GDB to
1148 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1149 2.0) doesn't understand it, even though the compiler generates it.
1150 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1151 suite, but for now go with what works.
1152
1153 It would make sense for the .type and .scl directives to use the
1154 ECOFF numbers directly, rather than using the COFF numbers and
1155 mapping them. Unfortunately, this is historically what mips-tfile
1156 expects, and changing gcc now would be a considerable pain (the
1157 native compiler generates debugging information internally, rather
1158 than via the assembler, so it will never use .type or .scl). */
1159
1160 static const bt_t map_coff_types[] = {
1161 bt_Nil, /* T_NULL */
1162 bt_Nil, /* T_ARG */
1163 bt_Char, /* T_CHAR */
1164 bt_Short, /* T_SHORT */
1165 bt_Int, /* T_INT */
1166 bt_Long, /* T_LONG */
1167 bt_Float, /* T_FLOAT */
1168 bt_Double, /* T_DOUBLE */
1169 bt_Struct, /* T_STRUCT */
1170 bt_Union, /* T_UNION */
1171 bt_Enum, /* T_ENUM */
1172 bt_Enum, /* T_MOE */
1173 bt_UChar, /* T_UCHAR */
1174 bt_UShort, /* T_USHORT */
1175 bt_UInt, /* T_UINT */
1176 bt_ULong /* T_ULONG */
1177 };
1178
1179 /* Convert COFF storage class to ECOFF storage class. */
1180 static const sc_t map_coff_storage[] = {
1181 sc_Nil, /* 0: C_NULL */
1182 sc_Abs, /* 1: C_AUTO auto var */
1183 sc_Undefined, /* 2: C_EXT external */
1184 sc_Data, /* 3: C_STAT static */
1185 sc_Register, /* 4: C_REG register */
1186 sc_Undefined, /* 5: C_EXTDEF ??? */
1187 sc_Text, /* 6: C_LABEL label */
1188 sc_Text, /* 7: C_ULABEL user label */
1189 sc_Info, /* 8: C_MOS member of struct */
1190 sc_Abs, /* 9: C_ARG argument */
1191 sc_Info, /* 10: C_STRTAG struct tag */
1192 sc_Info, /* 11: C_MOU member of union */
1193 sc_Info, /* 12: C_UNTAG union tag */
1194 sc_Info, /* 13: C_TPDEF typedef */
1195 sc_Data, /* 14: C_USTATIC ??? */
1196 sc_Info, /* 15: C_ENTAG enum tag */
1197 sc_Info, /* 16: C_MOE member of enum */
1198 sc_Register, /* 17: C_REGPARM register parameter */
1199 sc_Bits, /* 18; C_FIELD bitfield */
1200 sc_Nil, /* 19 */
1201 sc_Nil, /* 20 */
1202 sc_Nil, /* 21 */
1203 sc_Nil, /* 22 */
1204 sc_Nil, /* 23 */
1205 sc_Nil, /* 24 */
1206 sc_Nil, /* 25 */
1207 sc_Nil, /* 26 */
1208 sc_Nil, /* 27 */
1209 sc_Nil, /* 28 */
1210 sc_Nil, /* 29 */
1211 sc_Nil, /* 30 */
1212 sc_Nil, /* 31 */
1213 sc_Nil, /* 32 */
1214 sc_Nil, /* 33 */
1215 sc_Nil, /* 34 */
1216 sc_Nil, /* 35 */
1217 sc_Nil, /* 36 */
1218 sc_Nil, /* 37 */
1219 sc_Nil, /* 38 */
1220 sc_Nil, /* 39 */
1221 sc_Nil, /* 40 */
1222 sc_Nil, /* 41 */
1223 sc_Nil, /* 42 */
1224 sc_Nil, /* 43 */
1225 sc_Nil, /* 44 */
1226 sc_Nil, /* 45 */
1227 sc_Nil, /* 46 */
1228 sc_Nil, /* 47 */
1229 sc_Nil, /* 48 */
1230 sc_Nil, /* 49 */
1231 sc_Nil, /* 50 */
1232 sc_Nil, /* 51 */
1233 sc_Nil, /* 52 */
1234 sc_Nil, /* 53 */
1235 sc_Nil, /* 54 */
1236 sc_Nil, /* 55 */
1237 sc_Nil, /* 56 */
1238 sc_Nil, /* 57 */
1239 sc_Nil, /* 58 */
1240 sc_Nil, /* 59 */
1241 sc_Nil, /* 60 */
1242 sc_Nil, /* 61 */
1243 sc_Nil, /* 62 */
1244 sc_Nil, /* 63 */
1245 sc_Nil, /* 64 */
1246 sc_Nil, /* 65 */
1247 sc_Nil, /* 66 */
1248 sc_Nil, /* 67 */
1249 sc_Nil, /* 68 */
1250 sc_Nil, /* 69 */
1251 sc_Nil, /* 70 */
1252 sc_Nil, /* 71 */
1253 sc_Nil, /* 72 */
1254 sc_Nil, /* 73 */
1255 sc_Nil, /* 74 */
1256 sc_Nil, /* 75 */
1257 sc_Nil, /* 76 */
1258 sc_Nil, /* 77 */
1259 sc_Nil, /* 78 */
1260 sc_Nil, /* 79 */
1261 sc_Nil, /* 80 */
1262 sc_Nil, /* 81 */
1263 sc_Nil, /* 82 */
1264 sc_Nil, /* 83 */
1265 sc_Nil, /* 84 */
1266 sc_Nil, /* 85 */
1267 sc_Nil, /* 86 */
1268 sc_Nil, /* 87 */
1269 sc_Nil, /* 88 */
1270 sc_Nil, /* 89 */
1271 sc_Nil, /* 90 */
1272 sc_Nil, /* 91 */
1273 sc_Nil, /* 92 */
1274 sc_Nil, /* 93 */
1275 sc_Nil, /* 94 */
1276 sc_Nil, /* 95 */
1277 sc_Nil, /* 96 */
1278 sc_Nil, /* 97 */
1279 sc_Nil, /* 98 */
1280 sc_Nil, /* 99 */
1281 sc_Text, /* 100: C_BLOCK block start/end */
1282 sc_Text, /* 101: C_FCN function start/end */
1283 sc_Info, /* 102: C_EOS end of struct/union/enum */
1284 sc_Nil, /* 103: C_FILE file start */
1285 sc_Nil, /* 104: C_LINE line number */
1286 sc_Nil, /* 105: C_ALIAS combined type info */
1287 sc_Nil, /* 106: C_HIDDEN ??? */
1288 };
1289
1290 /* Convert COFF storage class to ECOFF symbol type. */
1291 static const st_t map_coff_sym_type[] = {
1292 st_Nil, /* 0: C_NULL */
1293 st_Local, /* 1: C_AUTO auto var */
1294 st_Global, /* 2: C_EXT external */
1295 st_Static, /* 3: C_STAT static */
1296 st_Local, /* 4: C_REG register */
1297 st_Global, /* 5: C_EXTDEF ??? */
1298 st_Label, /* 6: C_LABEL label */
1299 st_Label, /* 7: C_ULABEL user label */
1300 st_Member, /* 8: C_MOS member of struct */
1301 st_Param, /* 9: C_ARG argument */
1302 st_Block, /* 10: C_STRTAG struct tag */
1303 st_Member, /* 11: C_MOU member of union */
1304 st_Block, /* 12: C_UNTAG union tag */
1305 st_Typedef, /* 13: C_TPDEF typedef */
1306 st_Static, /* 14: C_USTATIC ??? */
1307 st_Block, /* 15: C_ENTAG enum tag */
1308 st_Member, /* 16: C_MOE member of enum */
1309 st_Param, /* 17: C_REGPARM register parameter */
1310 st_Member, /* 18; C_FIELD bitfield */
1311 st_Nil, /* 19 */
1312 st_Nil, /* 20 */
1313 st_Nil, /* 21 */
1314 st_Nil, /* 22 */
1315 st_Nil, /* 23 */
1316 st_Nil, /* 24 */
1317 st_Nil, /* 25 */
1318 st_Nil, /* 26 */
1319 st_Nil, /* 27 */
1320 st_Nil, /* 28 */
1321 st_Nil, /* 29 */
1322 st_Nil, /* 30 */
1323 st_Nil, /* 31 */
1324 st_Nil, /* 32 */
1325 st_Nil, /* 33 */
1326 st_Nil, /* 34 */
1327 st_Nil, /* 35 */
1328 st_Nil, /* 36 */
1329 st_Nil, /* 37 */
1330 st_Nil, /* 38 */
1331 st_Nil, /* 39 */
1332 st_Nil, /* 40 */
1333 st_Nil, /* 41 */
1334 st_Nil, /* 42 */
1335 st_Nil, /* 43 */
1336 st_Nil, /* 44 */
1337 st_Nil, /* 45 */
1338 st_Nil, /* 46 */
1339 st_Nil, /* 47 */
1340 st_Nil, /* 48 */
1341 st_Nil, /* 49 */
1342 st_Nil, /* 50 */
1343 st_Nil, /* 51 */
1344 st_Nil, /* 52 */
1345 st_Nil, /* 53 */
1346 st_Nil, /* 54 */
1347 st_Nil, /* 55 */
1348 st_Nil, /* 56 */
1349 st_Nil, /* 57 */
1350 st_Nil, /* 58 */
1351 st_Nil, /* 59 */
1352 st_Nil, /* 60 */
1353 st_Nil, /* 61 */
1354 st_Nil, /* 62 */
1355 st_Nil, /* 63 */
1356 st_Nil, /* 64 */
1357 st_Nil, /* 65 */
1358 st_Nil, /* 66 */
1359 st_Nil, /* 67 */
1360 st_Nil, /* 68 */
1361 st_Nil, /* 69 */
1362 st_Nil, /* 70 */
1363 st_Nil, /* 71 */
1364 st_Nil, /* 72 */
1365 st_Nil, /* 73 */
1366 st_Nil, /* 74 */
1367 st_Nil, /* 75 */
1368 st_Nil, /* 76 */
1369 st_Nil, /* 77 */
1370 st_Nil, /* 78 */
1371 st_Nil, /* 79 */
1372 st_Nil, /* 80 */
1373 st_Nil, /* 81 */
1374 st_Nil, /* 82 */
1375 st_Nil, /* 83 */
1376 st_Nil, /* 84 */
1377 st_Nil, /* 85 */
1378 st_Nil, /* 86 */
1379 st_Nil, /* 87 */
1380 st_Nil, /* 88 */
1381 st_Nil, /* 89 */
1382 st_Nil, /* 90 */
1383 st_Nil, /* 91 */
1384 st_Nil, /* 92 */
1385 st_Nil, /* 93 */
1386 st_Nil, /* 94 */
1387 st_Nil, /* 95 */
1388 st_Nil, /* 96 */
1389 st_Nil, /* 97 */
1390 st_Nil, /* 98 */
1391 st_Nil, /* 99 */
1392 st_Block, /* 100: C_BLOCK block start/end */
1393 st_Proc, /* 101: C_FCN function start/end */
1394 st_End, /* 102: C_EOS end of struct/union/enum */
1395 st_File, /* 103: C_FILE file start */
1396 st_Nil, /* 104: C_LINE line number */
1397 st_Nil, /* 105: C_ALIAS combined type info */
1398 st_Nil, /* 106: C_HIDDEN ??? */
1399 };
1400
1401
1402 /* Keep track of different sized allocation requests. */
1403 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1404 \f
1405 /* Record whether we have seen any debugging information. */
1406 int ecoff_debugging_seen = 0;
1407
1408 /* Various statics. */
1409 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1410 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1411 static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1412 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1413 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1414 #ifdef ECOFF_DEBUG
1415 static int debug = 0; /* trace functions */
1416 #endif
1417 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1418
1419 static int current_file_idx;
1420 static const char *current_stabs_filename;
1421
1422 /* Pseudo symbol to use when putting stabs into the symbol table. */
1423 #ifndef STABS_SYMBOL
1424 #define STABS_SYMBOL "@stabs"
1425 #endif
1426
1427 static char stabs_symbol[] = STABS_SYMBOL;
1428 \f
1429 /* Prototypes for functions defined in this file. */
1430
1431 static void add_varray_page PARAMS ((varray_t *vp));
1432 static symint_t add_string PARAMS ((varray_t *vp,
1433 struct hash_control *hash_tbl,
1434 const char *str,
1435 shash_t **ret_hash));
1436 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1437 sc_t storage, symbolS *sym,
1438 bfd_vma addend, symint_t value,
1439 symint_t indx));
1440 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1441 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1442 symint_t sym_index));
1443 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1444 hash_state_t state,
1445 thash_t **hash_tbl));
1446 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1447 bt_t basic_type));
1448 static void add_unknown_tag PARAMS ((tag_t *ptag));
1449 static void add_procedure PARAMS ((char *func));
1450 static void add_file PARAMS ((const char *file_name, int indx, int fake));
1451 #ifdef ECOFF_DEBUG
1452 static char *sc_to_string PARAMS ((sc_t storage_class));
1453 static char *st_to_string PARAMS ((st_t symbol_type));
1454 #endif
1455 static void mark_stabs PARAMS ((int));
1456 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1457 char *bufptr, unsigned long need));
1458 static unsigned long ecoff_padding_adjust
1459 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1460 unsigned long offset, char **bufptrptr));
1461 static unsigned long ecoff_build_lineno
1462 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1463 unsigned long offset, long *linecntptr));
1464 static unsigned long ecoff_build_symbols
1465 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1466 unsigned long offset));
1467 static unsigned long ecoff_build_procs
1468 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1469 unsigned long offset));
1470 static unsigned long ecoff_build_aux
1471 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1472 unsigned long offset));
1473 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1474 unsigned long offset,
1475 varray_t *vp));
1476 static unsigned long ecoff_build_ss
1477 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1478 unsigned long offset));
1479 static unsigned long ecoff_build_fdr
1480 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1481 unsigned long offset));
1482 static void ecoff_setup_ext PARAMS ((void));
1483 static page_type *allocate_cluster PARAMS ((unsigned long npages));
1484 static page_type *allocate_page PARAMS ((void));
1485 static scope_t *allocate_scope PARAMS ((void));
1486 static void free_scope PARAMS ((scope_t *ptr));
1487 static vlinks_t *allocate_vlinks PARAMS ((void));
1488 static shash_t *allocate_shash PARAMS ((void));
1489 static thash_t *allocate_thash PARAMS ((void));
1490 static tag_t *allocate_tag PARAMS ((void));
1491 static void free_tag PARAMS ((tag_t *ptr));
1492 static forward_t *allocate_forward PARAMS ((void));
1493 static thead_t *allocate_thead PARAMS ((void));
1494 static void free_thead PARAMS ((thead_t *ptr));
1495 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1496 \f
1497 /* This function should be called when the assembler starts up. */
1498
1499 void
1500 ecoff_read_begin_hook ()
1501 {
1502 tag_hash = hash_new ();
1503 top_tag_head = allocate_thead ();
1504 top_tag_head->first_tag = (tag_t *) NULL;
1505 top_tag_head->free = (thead_t *) NULL;
1506 top_tag_head->prev = cur_tag_head;
1507 cur_tag_head = top_tag_head;
1508 }
1509
1510 /* This function should be called when a symbol is created. */
1511
1512 void
1513 ecoff_symbol_new_hook (symbolP)
1514 symbolS *symbolP;
1515 {
1516 /* Make sure that we have a file pointer, but only if we have seen a
1517 file. If we haven't seen a file, then this is a probably special
1518 symbol created by md_begin which may required special handling at
1519 some point. Creating a dummy file with a dummy name is certainly
1520 wrong. */
1521 if (cur_file_ptr == (efdr_t *) NULL
1522 && seen_at_least_1_file ())
1523 add_file ((const char *) NULL, 0, 1);
1524 symbolP->ecoff_file = cur_file_ptr;
1525 symbolP->ecoff_symbol = NULL;
1526 symbolP->ecoff_extern_size = 0;
1527 }
1528 \f
1529 /* Add a page to a varray object. */
1530
1531 static void
1532 add_varray_page (vp)
1533 varray_t *vp; /* varray to add page to */
1534 {
1535 vlinks_t *new_links = allocate_vlinks ();
1536
1537 #ifdef MALLOC_CHECK
1538 if (vp->object_size > 1)
1539 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1540 else
1541 #endif
1542 new_links->datum = allocate_page ();
1543
1544 alloc_counts[(int)alloc_type_varray].total_alloc++;
1545 alloc_counts[(int)alloc_type_varray].total_pages++;
1546
1547 new_links->start_index = vp->num_allocated;
1548 vp->objects_last_page = 0;
1549
1550 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1551 vp->first = vp->last = new_links;
1552 else
1553 { /* 2nd or greater allocation */
1554 new_links->prev = vp->last;
1555 vp->last->next = new_links;
1556 vp->last = new_links;
1557 }
1558 }
1559 \f
1560 /* Add a string (and null pad) to one of the string tables. */
1561
1562 static symint_t
1563 add_string (vp, hash_tbl, str, ret_hash)
1564 varray_t *vp; /* string obstack */
1565 struct hash_control *hash_tbl; /* ptr to hash table */
1566 const char *str; /* string */
1567 shash_t **ret_hash; /* return hash pointer */
1568 {
1569 register unsigned long len = strlen (str);
1570 register shash_t *hash_ptr;
1571
1572 if (len >= PAGE_USIZE)
1573 as_fatal (_("String too big (%lu bytes)"), len);
1574
1575 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1576 if (hash_ptr == (shash_t *) NULL)
1577 {
1578 register const char *err;
1579
1580 if (vp->objects_last_page + len >= PAGE_USIZE)
1581 {
1582 vp->num_allocated =
1583 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1584 add_varray_page (vp);
1585 }
1586
1587 hash_ptr = allocate_shash ();
1588 hash_ptr->indx = vp->num_allocated;
1589
1590 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1591
1592 vp->objects_last_page += len + 1;
1593 vp->num_allocated += len + 1;
1594
1595 strcpy (hash_ptr->string, str);
1596
1597 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1598 if (err)
1599 as_fatal (_("Inserting \"%s\" into string hash table: %s"),
1600 str, err);
1601 }
1602
1603 if (ret_hash != (shash_t **) NULL)
1604 *ret_hash = hash_ptr;
1605
1606 return hash_ptr->indx;
1607 }
1608 \f
1609 /* Add debugging information for a symbol. */
1610
1611 static localsym_t *
1612 add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
1613 const char *str; /* symbol name */
1614 st_t type; /* symbol type */
1615 sc_t storage; /* storage class */
1616 symbolS *sym_value; /* associated symbol. */
1617 bfd_vma addend; /* addend to sym_value. */
1618 symint_t value; /* value of symbol */
1619 symint_t indx; /* index to local/aux. syms */
1620 {
1621 localsym_t *psym;
1622 register scope_t *pscope;
1623 register thead_t *ptag_head;
1624 register tag_t *ptag;
1625 register tag_t *ptag_next;
1626 register varray_t *vp;
1627 register int scope_delta = 0;
1628 shash_t *hash_ptr = (shash_t *) NULL;
1629
1630 if (cur_file_ptr == (efdr_t *) NULL)
1631 as_fatal (_("no current file pointer"));
1632
1633 vp = &cur_file_ptr->symbols;
1634
1635 if (vp->objects_last_page == vp->objects_per_page)
1636 add_varray_page (vp);
1637
1638 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1639
1640 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1641 psym->name = S_GET_NAME (sym_value);
1642 else
1643 psym->name = str;
1644 psym->as_sym = sym_value;
1645 if (sym_value != (symbolS *) NULL)
1646 sym_value->ecoff_symbol = psym;
1647 psym->addend = addend;
1648 psym->file_ptr = cur_file_ptr;
1649 psym->proc_ptr = cur_proc_ptr;
1650 psym->begin_ptr = (localsym_t *) NULL;
1651 psym->index_ptr = (aux_t *) NULL;
1652 psym->forward_ref = (forward_t *) NULL;
1653 psym->sym_index = -1;
1654 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1655 psym->ecoff_sym.asym.value = value;
1656 psym->ecoff_sym.asym.st = (unsigned) type;
1657 psym->ecoff_sym.asym.sc = (unsigned) storage;
1658 psym->ecoff_sym.asym.index = indx;
1659
1660 /* If there is an associated symbol, we wait until the end of the
1661 assembly before deciding where to put the name (it may be just an
1662 external symbol). Otherwise, this is just a debugging symbol and
1663 the name should go with the current file. */
1664 if (sym_value == (symbolS *) NULL)
1665 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1666 ? 0
1667 : add_string (&cur_file_ptr->strings,
1668 cur_file_ptr->str_hash,
1669 str,
1670 &hash_ptr));
1671
1672 ++vp->num_allocated;
1673
1674 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1675 return psym;
1676
1677 /* Save the symbol within the hash table if this is a static
1678 item, and it has a name. */
1679 if (hash_ptr != (shash_t *) NULL
1680 && (type == st_Global || type == st_Static || type == st_Label
1681 || type == st_Proc || type == st_StaticProc))
1682 hash_ptr->sym_ptr = psym;
1683
1684 /* push or pop a scope if appropriate. */
1685 switch (type)
1686 {
1687 default:
1688 break;
1689
1690 case st_File: /* beginning of file */
1691 case st_Proc: /* procedure */
1692 case st_StaticProc: /* static procedure */
1693 case st_Block: /* begin scope */
1694 pscope = allocate_scope ();
1695 pscope->prev = cur_file_ptr->cur_scope;
1696 pscope->lsym = psym;
1697 pscope->type = type;
1698 cur_file_ptr->cur_scope = pscope;
1699
1700 if (type != st_File)
1701 scope_delta = 1;
1702
1703 /* For every block type except file, struct, union, or
1704 enumeration blocks, push a level on the tag stack. We omit
1705 file types, so that tags can span file boundaries. */
1706 if (type != st_File && storage != sc_Info)
1707 {
1708 ptag_head = allocate_thead ();
1709 ptag_head->first_tag = 0;
1710 ptag_head->prev = cur_tag_head;
1711 cur_tag_head = ptag_head;
1712 }
1713 break;
1714
1715 case st_End:
1716 pscope = cur_file_ptr->cur_scope;
1717 if (pscope == (scope_t *) NULL)
1718 as_fatal (_("too many st_End's"));
1719 else
1720 {
1721 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1722
1723 psym->begin_ptr = pscope->lsym;
1724
1725 if (begin_type != st_File)
1726 scope_delta = -1;
1727
1728 /* Except for file, structure, union, or enumeration end
1729 blocks remove all tags created within this scope. */
1730 if (begin_type != st_File && storage != sc_Info)
1731 {
1732 ptag_head = cur_tag_head;
1733 cur_tag_head = ptag_head->prev;
1734
1735 for (ptag = ptag_head->first_tag;
1736 ptag != (tag_t *) NULL;
1737 ptag = ptag_next)
1738 {
1739 if (ptag->forward_ref != (forward_t *) NULL)
1740 add_unknown_tag (ptag);
1741
1742 ptag_next = ptag->same_block;
1743 ptag->hash_ptr->tag_ptr = ptag->same_name;
1744 free_tag (ptag);
1745 }
1746
1747 free_thead (ptag_head);
1748 }
1749
1750 cur_file_ptr->cur_scope = pscope->prev;
1751
1752 /* block begin gets next sym #. This is set when we know
1753 the symbol index value. */
1754
1755 /* Functions push two or more aux words as follows:
1756 1st word: index+1 of the end symbol (filled in later).
1757 2nd word: type of the function (plus any aux words needed).
1758 Also, tie the external pointer back to the function begin symbol. */
1759 if (begin_type != st_File && begin_type != st_Block)
1760 {
1761 symint_t ty;
1762 varray_t *svp = &cur_file_ptr->aux_syms;
1763
1764 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1765 pscope->lsym->index_ptr =
1766 &svp->last->datum->aux[svp->objects_last_page - 1];
1767 ty = add_aux_sym_tir (&last_func_type_info,
1768 hash_no,
1769 &cur_file_ptr->thash_head[0]);
1770
1771 /* This seems to be unnecessary. I'm not even sure what it is
1772 * intended to do. It's from mips-tfile.
1773 * if (last_func_sym_value != (symbolS *) NULL)
1774 * {
1775 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1776 * last_func_sym_value->index = ty;
1777 * }
1778 */
1779 }
1780
1781 free_scope (pscope);
1782 }
1783 }
1784
1785 cur_file_ptr->nested_scopes += scope_delta;
1786
1787 #ifdef ECOFF_DEBUG
1788 if (debug && type != st_File
1789 && (debug > 2 || type == st_Block || type == st_End
1790 || type == st_Proc || type == st_StaticProc))
1791 {
1792 char *sc_str = sc_to_string (storage);
1793 char *st_str = st_to_string (type);
1794 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1795
1796 fprintf (stderr,
1797 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1798 value, depth, sc_str);
1799
1800 if (str_start && str_end_p1 - str_start > 0)
1801 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1802 else
1803 {
1804 unsigned long len = strlen (st_str);
1805 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1806 }
1807 }
1808 #endif
1809
1810 return psym;
1811 }
1812 \f
1813 /* Add an auxiliary symbol (passing a symint). This is actually used
1814 for integral aux types, not just symints. */
1815
1816 static symint_t
1817 add_aux_sym_symint (aux_word)
1818 symint_t aux_word; /* auxiliary information word */
1819 {
1820 register varray_t *vp;
1821 register aux_t *aux_ptr;
1822
1823 if (cur_file_ptr == (efdr_t *) NULL)
1824 as_fatal (_("no current file pointer"));
1825
1826 vp = &cur_file_ptr->aux_syms;
1827
1828 if (vp->objects_last_page == vp->objects_per_page)
1829 add_varray_page (vp);
1830
1831 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1832 aux_ptr->type = aux_isym;
1833 aux_ptr->data.isym = aux_word;
1834
1835 return vp->num_allocated++;
1836 }
1837
1838
1839 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1840
1841 static symint_t
1842 add_aux_sym_rndx (file_index, sym_index)
1843 int file_index;
1844 symint_t sym_index;
1845 {
1846 register varray_t *vp;
1847 register aux_t *aux_ptr;
1848
1849 if (cur_file_ptr == (efdr_t *) NULL)
1850 as_fatal (_("no current file pointer"));
1851
1852 vp = &cur_file_ptr->aux_syms;
1853
1854 if (vp->objects_last_page == vp->objects_per_page)
1855 add_varray_page (vp);
1856
1857 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1858 aux_ptr->type = aux_rndx;
1859 aux_ptr->data.rndx.rfd = file_index;
1860 aux_ptr->data.rndx.index = sym_index;
1861
1862 return vp->num_allocated++;
1863 }
1864 \f
1865 /* Add an auxiliary symbol (passing the basic type and possibly
1866 type qualifiers). */
1867
1868 static symint_t
1869 add_aux_sym_tir (t, state, hash_tbl)
1870 type_info_t *t; /* current type information */
1871 hash_state_t state; /* whether to hash type or not */
1872 thash_t **hash_tbl; /* pointer to hash table to use */
1873 {
1874 register varray_t *vp;
1875 register aux_t *aux_ptr;
1876 static AUXU init_aux;
1877 symint_t ret;
1878 int i;
1879 AUXU aux;
1880
1881 if (cur_file_ptr == (efdr_t *) NULL)
1882 as_fatal (_("no current file pointer"));
1883
1884 vp = &cur_file_ptr->aux_syms;
1885
1886 aux = init_aux;
1887 aux.ti.bt = (int) t->basic_type;
1888 aux.ti.continued = 0;
1889 aux.ti.fBitfield = t->bitfield;
1890
1891 aux.ti.tq0 = (int) t->type_qualifiers[0];
1892 aux.ti.tq1 = (int) t->type_qualifiers[1];
1893 aux.ti.tq2 = (int) t->type_qualifiers[2];
1894 aux.ti.tq3 = (int) t->type_qualifiers[3];
1895 aux.ti.tq4 = (int) t->type_qualifiers[4];
1896 aux.ti.tq5 = (int) t->type_qualifiers[5];
1897
1898
1899 /* For anything that adds additional information, we must not hash,
1900 so check here, and reset our state. */
1901
1902 if (state != hash_no
1903 && (t->type_qualifiers[0] == tq_Array
1904 || t->type_qualifiers[1] == tq_Array
1905 || t->type_qualifiers[2] == tq_Array
1906 || t->type_qualifiers[3] == tq_Array
1907 || t->type_qualifiers[4] == tq_Array
1908 || t->type_qualifiers[5] == tq_Array
1909 || t->basic_type == bt_Struct
1910 || t->basic_type == bt_Union
1911 || t->basic_type == bt_Enum
1912 || t->bitfield
1913 || t->num_dims > 0))
1914 state = hash_no;
1915
1916 /* See if we can hash this type, and save some space, but some types
1917 can't be hashed (because they contain arrays or continuations),
1918 and others can be put into the hash list, but cannot use existing
1919 types because other aux entries precede this one. */
1920
1921 if (state != hash_no)
1922 {
1923 register thash_t *hash_ptr;
1924 register symint_t hi;
1925
1926 hi = aux.isym & ((1 << HASHBITS) - 1);
1927 hi %= THASH_SIZE;
1928
1929 for (hash_ptr = hash_tbl[hi];
1930 hash_ptr != (thash_t *)0;
1931 hash_ptr = hash_ptr->next)
1932 {
1933 if (aux.isym == hash_ptr->type.isym)
1934 break;
1935 }
1936
1937 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1938 return hash_ptr->indx;
1939
1940 if (hash_ptr == (thash_t *) NULL)
1941 {
1942 hash_ptr = allocate_thash ();
1943 hash_ptr->next = hash_tbl[hi];
1944 hash_ptr->type = aux;
1945 hash_ptr->indx = vp->num_allocated;
1946 hash_tbl[hi] = hash_ptr;
1947 }
1948 }
1949
1950 /* Everything is set up, add the aux symbol. */
1951 if (vp->objects_last_page == vp->objects_per_page)
1952 add_varray_page (vp);
1953
1954 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1955 aux_ptr->type = aux_tir;
1956 aux_ptr->data = aux;
1957
1958 ret = vp->num_allocated++;
1959
1960 /* Add bitfield length if it exists.
1961
1962 NOTE: Mips documentation claims bitfield goes at the end of the
1963 AUX record, but the DECstation compiler emits it here.
1964 (This would only make a difference for enum bitfields.)
1965
1966 Also note: We use the last size given since gcc may emit 2
1967 for an enum bitfield. */
1968
1969 if (t->bitfield)
1970 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1971
1972
1973 /* Add tag information if needed. Structure, union, and enum
1974 references add 2 aux symbols: a [file index, symbol index]
1975 pointer to the structure type, and the current file index. */
1976
1977 if (t->basic_type == bt_Struct
1978 || t->basic_type == bt_Union
1979 || t->basic_type == bt_Enum)
1980 {
1981 register symint_t file_index = t->tag_ptr->ifd;
1982 register localsym_t *sym = t->tag_ptr->sym;
1983 register forward_t *forward_ref = allocate_forward ();
1984
1985 if (sym != (localsym_t *) NULL)
1986 {
1987 forward_ref->next = sym->forward_ref;
1988 sym->forward_ref = forward_ref;
1989 }
1990 else
1991 {
1992 forward_ref->next = t->tag_ptr->forward_ref;
1993 t->tag_ptr->forward_ref = forward_ref;
1994 }
1995
1996 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1997 forward_ref->index_ptr
1998 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1999
2000 (void) add_aux_sym_symint (file_index);
2001 forward_ref->ifd_ptr
2002 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2003 }
2004
2005 /* Add information about array bounds if they exist. */
2006 for (i = 0; i < t->num_dims; i++)
2007 {
2008 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2009 cur_file_ptr->int_type);
2010
2011 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2012 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2013 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2014 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2015 ? 0
2016 : (t->sizes[i] * 8) / t->dimensions[i]);
2017 };
2018
2019 /* NOTE: Mips documentation claims that the bitfield width goes here.
2020 But it needs to be emitted earlier. */
2021
2022 return ret;
2023 }
2024 \f
2025 /* Add a tag to the tag table (unless it already exists). */
2026
2027 static tag_t *
2028 get_tag (tag, sym, basic_type)
2029 const char *tag; /* tag name */
2030 localsym_t *sym; /* tag start block */
2031 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2032 {
2033 shash_t *hash_ptr;
2034 const char *err;
2035 tag_t *tag_ptr;
2036
2037 if (cur_file_ptr == (efdr_t *) NULL)
2038 as_fatal (_("no current file pointer"));
2039
2040 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2041
2042 if (hash_ptr != (shash_t *) NULL
2043 && hash_ptr->tag_ptr != (tag_t *) NULL)
2044 {
2045 tag_ptr = hash_ptr->tag_ptr;
2046 if (sym != (localsym_t *) NULL)
2047 {
2048 tag_ptr->basic_type = basic_type;
2049 tag_ptr->ifd = cur_file_ptr->file_index;
2050 tag_ptr->sym = sym;
2051 }
2052 return tag_ptr;
2053 }
2054
2055 if (hash_ptr == (shash_t *) NULL)
2056 {
2057 char *perm;
2058
2059 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2060 strcpy (perm, tag);
2061 hash_ptr = allocate_shash ();
2062 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2063 if (err)
2064 as_fatal (_("Inserting \"%s\" into tag hash table: %s"),
2065 tag, err);
2066 hash_ptr->string = perm;
2067 }
2068
2069 tag_ptr = allocate_tag ();
2070 tag_ptr->forward_ref = (forward_t *) NULL;
2071 tag_ptr->hash_ptr = hash_ptr;
2072 tag_ptr->same_name = hash_ptr->tag_ptr;
2073 tag_ptr->basic_type = basic_type;
2074 tag_ptr->sym = sym;
2075 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2076 ? (symint_t) -1
2077 : cur_file_ptr->file_index);
2078 tag_ptr->same_block = cur_tag_head->first_tag;
2079
2080 cur_tag_head->first_tag = tag_ptr;
2081 hash_ptr->tag_ptr = tag_ptr;
2082
2083 return tag_ptr;
2084 }
2085 \f
2086 /* Add an unknown {struct, union, enum} tag. */
2087
2088 static void
2089 add_unknown_tag (ptag)
2090 tag_t *ptag; /* pointer to tag information */
2091 {
2092 shash_t *hash_ptr = ptag->hash_ptr;
2093 char *name = hash_ptr->string;
2094 localsym_t *sym;
2095 forward_t **pf;
2096
2097 #ifdef ECOFF_DEBUG
2098 if (debug > 1)
2099 {
2100 char *agg_type = "{unknown aggregate type}";
2101 switch (ptag->basic_type)
2102 {
2103 case bt_Struct: agg_type = "struct"; break;
2104 case bt_Union: agg_type = "union"; break;
2105 case bt_Enum: agg_type = "enum"; break;
2106 default: break;
2107 }
2108
2109 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2110 hash_ptr->len, name_start);
2111 }
2112 #endif
2113
2114 sym = add_ecoff_symbol (name,
2115 st_Block,
2116 sc_Info,
2117 (symbolS *) NULL,
2118 (bfd_vma) 0,
2119 (symint_t) 0,
2120 (symint_t) 0);
2121
2122 (void) add_ecoff_symbol (name,
2123 st_End,
2124 sc_Info,
2125 (symbolS *) NULL,
2126 (bfd_vma) 0,
2127 (symint_t) 0,
2128 (symint_t) 0);
2129
2130 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2131 ;
2132 *pf = ptag->forward_ref;
2133 }
2134 \f
2135 /* Add a procedure to the current file's list of procedures, and record
2136 this is the current procedure. */
2137
2138 static void
2139 add_procedure (func)
2140 char *func; /* func name */
2141 {
2142 register varray_t *vp;
2143 register proc_t *new_proc_ptr;
2144 symbolS *sym;
2145
2146 #ifdef ECOFF_DEBUG
2147 if (debug)
2148 fputc ('\n', stderr);
2149 #endif
2150
2151 if (cur_file_ptr == (efdr_t *) NULL)
2152 as_fatal (_("no current file pointer"));
2153
2154 vp = &cur_file_ptr->procs;
2155
2156 if (vp->objects_last_page == vp->objects_per_page)
2157 add_varray_page (vp);
2158
2159 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2160
2161 if (first_proc_ptr == (proc_t *) NULL)
2162 first_proc_ptr = new_proc_ptr;
2163
2164 vp->num_allocated++;
2165
2166 new_proc_ptr->pdr.isym = -1;
2167 new_proc_ptr->pdr.iline = -1;
2168 new_proc_ptr->pdr.lnLow = -1;
2169 new_proc_ptr->pdr.lnHigh = -1;
2170
2171 /* Set the BSF_FUNCTION flag for the symbol. */
2172 sym = symbol_find_or_make (func);
2173 sym->bsym->flags |= BSF_FUNCTION;
2174
2175 /* Push the start of the function. */
2176 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2177 sym, (bfd_vma) 0, (symint_t) 0,
2178 (symint_t) 0);
2179
2180 ++proc_cnt;
2181
2182 /* Fill in the linenos preceding the .ent, if any. */
2183 if (noproc_lineno != (lineno_list_t *) NULL)
2184 {
2185 lineno_list_t *l;
2186
2187 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2188 l->proc = new_proc_ptr;
2189 *last_lineno_ptr = noproc_lineno;
2190 while (*last_lineno_ptr != NULL)
2191 {
2192 last_lineno = *last_lineno_ptr;
2193 last_lineno_ptr = &last_lineno->next;
2194 }
2195 noproc_lineno = (lineno_list_t *) NULL;
2196 }
2197 }
2198 \f
2199 /* Add a new filename, and set up all of the file relative
2200 virtual arrays (strings, symbols, aux syms, etc.). Record
2201 where the current file structure lives. */
2202
2203 static void
2204 add_file (file_name, indx, fake)
2205 const char *file_name; /* file name */
2206 int indx;
2207 int fake;
2208 {
2209 register int first_ch;
2210 register efdr_t *fil_ptr;
2211
2212 #ifdef ECOFF_DEBUG
2213 if (debug)
2214 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2215 #endif
2216
2217 /* If the file name is NULL, then no .file symbol appeared, and we
2218 want to use the actual file name. */
2219 if (file_name == (const char *) NULL)
2220 {
2221 char *file;
2222
2223 if (first_file != (efdr_t *) NULL)
2224 as_fatal (_("fake .file after real one"));
2225 as_where (&file, (unsigned int *) NULL);
2226 file_name = (const char *) file;
2227
2228 /* Automatically generate ECOFF debugging information, since I
2229 think that's what other ECOFF assemblers do. We don't do
2230 this if we see a .file directive with a string, since that
2231 implies that some sort of debugging information is being
2232 provided. */
2233 if (! symbol_table_frozen && debug_type == DEBUG_NONE)
2234 debug_type = DEBUG_ECOFF;
2235 }
2236
2237 #ifndef NO_LISTING
2238 if (listing)
2239 listing_source_file (file_name);
2240 #endif
2241
2242 current_stabs_filename = file_name;
2243
2244 /* If we're creating stabs, then we don't actually make a new FDR.
2245 Instead, we just create a stabs symbol. */
2246 if (stabs_seen)
2247 {
2248 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2249 symbol_new ("L0\001", now_seg,
2250 (valueT) frag_now_fix (),
2251 frag_now),
2252 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2253 return;
2254 }
2255
2256 first_ch = *file_name;
2257
2258 /* FIXME: We can't safely merge files which have line number
2259 information (fMerge will be zero in this case). Otherwise, we
2260 get incorrect line number debugging info. See for instance
2261 ecoff_build_lineno, which will end up setting all file->fdr.*
2262 fields multiple times, resulting in incorrect debug info. In
2263 order to make this work right, all line number and symbol info
2264 for the same source file has to be adjacent in the object file,
2265 so that a single file descriptor can be used to point to them.
2266 This would require maintaining file specific lists of line
2267 numbers and symbols for each file, so that they can be merged
2268 together (or output together) when two .file pseudo-ops are
2269 merged into one file descriptor. */
2270
2271 /* See if the file has already been created. */
2272 for (fil_ptr = first_file;
2273 fil_ptr != (efdr_t *) NULL;
2274 fil_ptr = fil_ptr->next_file)
2275 {
2276 if (first_ch == fil_ptr->name[0]
2277 && strcmp (file_name, fil_ptr->name) == 0
2278 && fil_ptr->fdr.fMerge)
2279 {
2280 cur_file_ptr = fil_ptr;
2281 if (! fake)
2282 cur_file_ptr->fake = 0;
2283 break;
2284 }
2285 }
2286
2287 /* If this is a new file, create it. */
2288 if (fil_ptr == (efdr_t *) NULL)
2289 {
2290 if (file_desc.objects_last_page == file_desc.objects_per_page)
2291 add_varray_page (&file_desc);
2292
2293 fil_ptr = cur_file_ptr =
2294 &file_desc.last->datum->file[file_desc.objects_last_page++];
2295 *fil_ptr = init_file;
2296
2297 fil_ptr->file_index = current_file_idx++;
2298 ++file_desc.num_allocated;
2299
2300 fil_ptr->fake = fake;
2301
2302 /* Allocate the string hash table. */
2303 fil_ptr->str_hash = hash_new ();
2304
2305 /* Make sure 0 byte in string table is null */
2306 add_string (&fil_ptr->strings,
2307 fil_ptr->str_hash,
2308 "",
2309 (shash_t **)0);
2310
2311 if (strlen (file_name) > PAGE_USIZE - 2)
2312 as_fatal (_("Filename goes over one page boundary."));
2313
2314 /* Push the start of the filename. We assume that the filename
2315 will be stored at string offset 1. */
2316 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2317 (symbolS *) NULL, (bfd_vma) 0,
2318 (symint_t) 0, (symint_t) 0);
2319 fil_ptr->fdr.rss = 1;
2320 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2321
2322 /* Update the linked list of file descriptors. */
2323 *last_file_ptr = fil_ptr;
2324 last_file_ptr = &fil_ptr->next_file;
2325
2326 /* Add void & int types to the file (void should be first to catch
2327 errant 0's within the index fields). */
2328 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2329 hash_yes,
2330 &cur_file_ptr->thash_head[0]);
2331
2332 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2333 hash_yes,
2334 &cur_file_ptr->thash_head[0]);
2335 }
2336 }
2337
2338 /* This function is called when the assembler notices a preprocessor
2339 directive switching to a new file. This will not happen in
2340 compiler output, only in hand coded assembler. */
2341
2342 void
2343 ecoff_new_file (name)
2344 const char *name;
2345 {
2346 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2347 return;
2348 add_file (name, 0, 0);
2349
2350 /* This is a hand coded assembler file, so automatically turn on
2351 debugging information. */
2352 if (debug_type == DEBUG_NONE)
2353 debug_type = DEBUG_ECOFF;
2354 }
2355 \f
2356 #ifdef ECOFF_DEBUG
2357
2358 /* Convert storage class to string. */
2359
2360 static char *
2361 sc_to_string(storage_class)
2362 sc_t storage_class;
2363 {
2364 switch(storage_class)
2365 {
2366 case sc_Nil: return "Nil,";
2367 case sc_Text: return "Text,";
2368 case sc_Data: return "Data,";
2369 case sc_Bss: return "Bss,";
2370 case sc_Register: return "Register,";
2371 case sc_Abs: return "Abs,";
2372 case sc_Undefined: return "Undefined,";
2373 case sc_CdbLocal: return "CdbLocal,";
2374 case sc_Bits: return "Bits,";
2375 case sc_CdbSystem: return "CdbSystem,";
2376 case sc_RegImage: return "RegImage,";
2377 case sc_Info: return "Info,";
2378 case sc_UserStruct: return "UserStruct,";
2379 case sc_SData: return "SData,";
2380 case sc_SBss: return "SBss,";
2381 case sc_RData: return "RData,";
2382 case sc_Var: return "Var,";
2383 case sc_Common: return "Common,";
2384 case sc_SCommon: return "SCommon,";
2385 case sc_VarRegister: return "VarRegister,";
2386 case sc_Variant: return "Variant,";
2387 case sc_SUndefined: return "SUndefined,";
2388 case sc_Init: return "Init,";
2389 case sc_Max: return "Max,";
2390 }
2391
2392 return "???,";
2393 }
2394
2395 #endif /* DEBUG */
2396 \f
2397 #ifdef ECOFF_DEBUG
2398
2399 /* Convert symbol type to string. */
2400
2401 static char *
2402 st_to_string(symbol_type)
2403 st_t symbol_type;
2404 {
2405 switch(symbol_type)
2406 {
2407 case st_Nil: return "Nil,";
2408 case st_Global: return "Global,";
2409 case st_Static: return "Static,";
2410 case st_Param: return "Param,";
2411 case st_Local: return "Local,";
2412 case st_Label: return "Label,";
2413 case st_Proc: return "Proc,";
2414 case st_Block: return "Block,";
2415 case st_End: return "End,";
2416 case st_Member: return "Member,";
2417 case st_Typedef: return "Typedef,";
2418 case st_File: return "File,";
2419 case st_RegReloc: return "RegReloc,";
2420 case st_Forward: return "Forward,";
2421 case st_StaticProc: return "StaticProc,";
2422 case st_Constant: return "Constant,";
2423 case st_Str: return "String,";
2424 case st_Number: return "Number,";
2425 case st_Expr: return "Expr,";
2426 case st_Type: return "Type,";
2427 case st_Max: return "Max,";
2428 }
2429
2430 return "???,";
2431 }
2432
2433 #endif /* DEBUG */
2434 \f
2435 /* Parse .begin directives which have a label as the first argument
2436 which gives the location of the start of the block. */
2437
2438 void
2439 ecoff_directive_begin (ignore)
2440 int ignore;
2441 {
2442 char *name;
2443 char name_end;
2444
2445 if (cur_file_ptr == (efdr_t *) NULL)
2446 {
2447 as_warn (_(".begin directive without a preceding .file directive"));
2448 demand_empty_rest_of_line ();
2449 return;
2450 }
2451
2452 if (cur_proc_ptr == (proc_t *) NULL)
2453 {
2454 as_warn (_(".begin directive without a preceding .ent directive"));
2455 demand_empty_rest_of_line ();
2456 return;
2457 }
2458
2459 name = input_line_pointer;
2460 name_end = get_symbol_end ();
2461
2462 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2463 symbol_find_or_make (name),
2464 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2465
2466 *input_line_pointer = name_end;
2467
2468 /* The line number follows, but we don't use it. */
2469 (void) get_absolute_expression ();
2470 demand_empty_rest_of_line ();
2471 }
2472 \f
2473 /* Parse .bend directives which have a label as the first argument
2474 which gives the location of the end of the block. */
2475
2476 void
2477 ecoff_directive_bend (ignore)
2478 int ignore;
2479 {
2480 char *name;
2481 char name_end;
2482 symbolS *endsym;
2483
2484 if (cur_file_ptr == (efdr_t *) NULL)
2485 {
2486 as_warn (_(".bend directive without a preceding .file directive"));
2487 demand_empty_rest_of_line ();
2488 return;
2489 }
2490
2491 if (cur_proc_ptr == (proc_t *) NULL)
2492 {
2493 as_warn (_(".bend directive without a preceding .ent directive"));
2494 demand_empty_rest_of_line ();
2495 return;
2496 }
2497
2498 name = input_line_pointer;
2499 name_end = get_symbol_end ();
2500
2501 /* The value is the distance between the .bend directive and the
2502 corresponding symbol. We fill in the offset when we write out
2503 the symbol. */
2504 endsym = symbol_find (name);
2505 if (endsym == (symbolS *) NULL)
2506 as_warn (_(".bend directive names unknown symbol"));
2507 else
2508 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2509 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2510
2511 *input_line_pointer = name_end;
2512
2513 /* The line number follows, but we don't use it. */
2514 (void) get_absolute_expression ();
2515 demand_empty_rest_of_line ();
2516 }
2517 \f
2518 /* COFF debugging information is provided as a series of directives
2519 (.def, .scl, etc.). We build up information as we read the
2520 directives in the following static variables, and file it away when
2521 we reach the .endef directive. */
2522 static char *coff_sym_name;
2523 static type_info_t coff_type;
2524 static sc_t coff_storage_class;
2525 static st_t coff_symbol_typ;
2526 static int coff_is_function;
2527 static char *coff_tag;
2528 static valueT coff_value;
2529 static symbolS *coff_sym_value;
2530 static bfd_vma coff_sym_addend;
2531 static int coff_inside_enumeration;
2532
2533 /* Handle a .def directive: start defining a symbol. */
2534
2535 void
2536 ecoff_directive_def (ignore)
2537 int ignore;
2538 {
2539 char *name;
2540 char name_end;
2541
2542 ecoff_debugging_seen = 1;
2543
2544 SKIP_WHITESPACE ();
2545
2546 name = input_line_pointer;
2547 name_end = get_symbol_end ();
2548
2549 if (coff_sym_name != (char *) NULL)
2550 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2551 else if (*name == '\0')
2552 as_warn (_("Empty symbol name in .def; ignored"));
2553 else
2554 {
2555 if (coff_sym_name != (char *) NULL)
2556 free (coff_sym_name);
2557 if (coff_tag != (char *) NULL)
2558 free (coff_tag);
2559 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2560 strcpy (coff_sym_name, name);
2561 coff_type = type_info_init;
2562 coff_storage_class = sc_Nil;
2563 coff_symbol_typ = st_Nil;
2564 coff_is_function = 0;
2565 coff_tag = (char *) NULL;
2566 coff_value = 0;
2567 coff_sym_value = (symbolS *) NULL;
2568 coff_sym_addend = 0;
2569 }
2570
2571 *input_line_pointer = name_end;
2572
2573 demand_empty_rest_of_line ();
2574 }
2575
2576 /* Handle a .dim directive, used to give dimensions for an array. The
2577 arguments are comma separated numbers. mips-tfile assumes that
2578 there will not be more than 6 dimensions, and gdb won't read any
2579 more than that anyhow, so I will also make that assumption. */
2580
2581 void
2582 ecoff_directive_dim (ignore)
2583 int ignore;
2584 {
2585 int dimens[N_TQ];
2586 int i;
2587
2588 if (coff_sym_name == (char *) NULL)
2589 {
2590 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2591 demand_empty_rest_of_line ();
2592 return;
2593 }
2594
2595 for (i = 0; i < N_TQ; i++)
2596 {
2597 SKIP_WHITESPACE ();
2598 dimens[i] = get_absolute_expression ();
2599 if (*input_line_pointer == ',')
2600 ++input_line_pointer;
2601 else
2602 {
2603 if (*input_line_pointer != '\n'
2604 && *input_line_pointer != ';')
2605 as_warn (_("Badly formed .dim directive"));
2606 break;
2607 }
2608 }
2609
2610 if (i == N_TQ)
2611 --i;
2612
2613 /* The dimensions are stored away in reverse order. */
2614 for (; i >= 0; i--)
2615 {
2616 if (coff_type.num_dims >= N_TQ)
2617 {
2618 as_warn (_("Too many .dim entries"));
2619 break;
2620 }
2621 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2622 ++coff_type.num_dims;
2623 }
2624
2625 demand_empty_rest_of_line ();
2626 }
2627
2628 /* Handle a .scl directive, which sets the COFF storage class of the
2629 symbol. */
2630
2631 void
2632 ecoff_directive_scl (ignore)
2633 int ignore;
2634 {
2635 long val;
2636
2637 if (coff_sym_name == (char *) NULL)
2638 {
2639 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2640 demand_empty_rest_of_line ();
2641 return;
2642 }
2643
2644 val = get_absolute_expression ();
2645
2646 coff_symbol_typ = map_coff_sym_type[val];
2647 coff_storage_class = map_coff_storage[val];
2648
2649 demand_empty_rest_of_line ();
2650 }
2651
2652 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2653 .size can have multiple arguments. We humor it, although gcc will
2654 never generate more than one argument. */
2655
2656 void
2657 ecoff_directive_size (ignore)
2658 int ignore;
2659 {
2660 int sizes[N_TQ];
2661 int i;
2662
2663 if (coff_sym_name == (char *) NULL)
2664 {
2665 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2666 demand_empty_rest_of_line ();
2667 return;
2668 }
2669
2670 for (i = 0; i < N_TQ; i++)
2671 {
2672 SKIP_WHITESPACE ();
2673 sizes[i] = get_absolute_expression ();
2674 if (*input_line_pointer == ',')
2675 ++input_line_pointer;
2676 else
2677 {
2678 if (*input_line_pointer != '\n'
2679 && *input_line_pointer != ';')
2680 as_warn (_("Badly formed .size directive"));
2681 break;
2682 }
2683 }
2684
2685 if (i == N_TQ)
2686 --i;
2687
2688 /* The sizes are stored away in reverse order. */
2689 for (; i >= 0; i--)
2690 {
2691 if (coff_type.num_sizes >= N_TQ)
2692 {
2693 as_warn (_("Too many .size entries"));
2694 break;
2695 }
2696 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2697 ++coff_type.num_sizes;
2698 }
2699
2700 demand_empty_rest_of_line ();
2701 }
2702
2703 /* Handle the .type directive, which gives the COFF type of the
2704 symbol. */
2705
2706 void
2707 ecoff_directive_type (ignore)
2708 int ignore;
2709 {
2710 long val;
2711 tq_t *tq_ptr;
2712 tq_t *tq_shft;
2713
2714 if (coff_sym_name == (char *) NULL)
2715 {
2716 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2717 demand_empty_rest_of_line ();
2718 return;
2719 }
2720
2721 val = get_absolute_expression ();
2722
2723 coff_type.orig_type = BTYPE (val);
2724 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2725
2726 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2727 while (val &~ N_BTMASK)
2728 {
2729 if (tq_ptr == &coff_type.type_qualifiers[0])
2730 {
2731 /* FIXME: We could handle this by setting the continued bit.
2732 There would still be a limit: the .type argument can not
2733 be infinite. */
2734 as_warn (_("The type of %s is too complex; it will be simplified"),
2735 coff_sym_name);
2736 break;
2737 }
2738 if (ISPTR (val))
2739 *--tq_ptr = tq_Ptr;
2740 else if (ISFCN (val))
2741 *--tq_ptr = tq_Proc;
2742 else if (ISARY (val))
2743 *--tq_ptr = tq_Array;
2744 else
2745 as_fatal (_("Unrecognized .type argument"));
2746
2747 val = DECREF (val);
2748 }
2749
2750 tq_shft = &coff_type.type_qualifiers[0];
2751 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2752 *tq_shft++ = *tq_ptr++;
2753
2754 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2755 {
2756 /* If this is a function, ignore it, so that we don't get two
2757 entries (one from the .ent, and one for the .def that
2758 precedes it). Save the type information so that the end
2759 block can properly add it after the begin block index. For
2760 MIPS knows what reason, we must strip off the function type
2761 at this point. */
2762 coff_is_function = 1;
2763 tq_shft[-1] = tq_Nil;
2764 }
2765
2766 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2767 *tq_shft++ = tq_Nil;
2768
2769 demand_empty_rest_of_line ();
2770 }
2771
2772 /* Handle the .tag directive, which gives the name of a structure,
2773 union or enum. */
2774
2775 void
2776 ecoff_directive_tag (ignore)
2777 int ignore;
2778 {
2779 char *name;
2780 char name_end;
2781
2782 if (coff_sym_name == (char *) NULL)
2783 {
2784 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2785 demand_empty_rest_of_line ();
2786 return;
2787 }
2788
2789 name = input_line_pointer;
2790 name_end = get_symbol_end ();
2791
2792 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2793 strcpy (coff_tag, name);
2794
2795 *input_line_pointer = name_end;
2796
2797 demand_empty_rest_of_line ();
2798 }
2799
2800 /* Handle the .val directive, which gives the value of the symbol. It
2801 may be the name of a static or global symbol. */
2802
2803 void
2804 ecoff_directive_val (ignore)
2805 int ignore;
2806 {
2807 expressionS exp;
2808
2809 if (coff_sym_name == (char *) NULL)
2810 {
2811 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2812 demand_empty_rest_of_line ();
2813 return;
2814 }
2815
2816 expression (&exp);
2817 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2818 {
2819 as_bad (_(".val expression is too copmlex"));
2820 demand_empty_rest_of_line ();
2821 return;
2822 }
2823
2824 if (exp.X_op == O_constant)
2825 coff_value = exp.X_add_number;
2826 else
2827 {
2828 coff_sym_value = exp.X_add_symbol;
2829 coff_sym_addend = exp.X_add_number;
2830 }
2831
2832 demand_empty_rest_of_line ();
2833 }
2834
2835 /* Handle the .endef directive, which terminates processing of COFF
2836 debugging information for a symbol. */
2837
2838 void
2839 ecoff_directive_endef (ignore)
2840 int ignore;
2841 {
2842 char *name;
2843 symint_t indx;
2844 localsym_t *sym;
2845
2846 demand_empty_rest_of_line ();
2847
2848 if (coff_sym_name == (char *) NULL)
2849 {
2850 as_warn (_(".endef pseudo-op used before .def; ignored"));
2851 return;
2852 }
2853
2854 name = coff_sym_name;
2855 coff_sym_name = (char *) NULL;
2856
2857 /* If the symbol is a static or external, we have already gotten the
2858 appropriate type and class, so make sure we don't override those
2859 values. This is needed because there are some type and classes
2860 that are not in COFF, such as short data, etc. */
2861 if (coff_sym_value != (symbolS *) NULL)
2862 {
2863 coff_symbol_typ = st_Nil;
2864 coff_storage_class = sc_Nil;
2865 }
2866
2867 coff_type.extra_sizes = coff_tag != (char *) NULL;
2868 if (coff_type.num_dims > 0)
2869 {
2870 int diff = coff_type.num_dims - coff_type.num_sizes;
2871 int i = coff_type.num_dims - 1;
2872 int j;
2873
2874 if (coff_type.num_sizes != 1 || diff < 0)
2875 {
2876 as_warn (_("Bad COFF debugging info"));
2877 return;
2878 }
2879
2880 /* If this is an array, make sure the same number of dimensions
2881 and sizes were passed, creating extra sizes for multiply
2882 dimensioned arrays if not passed. */
2883 coff_type.extra_sizes = 0;
2884 if (diff)
2885 {
2886 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2887 while (j >= 0)
2888 {
2889 coff_type.sizes[j] = (((j - diff) >= 0)
2890 ? coff_type.sizes[j - diff]
2891 : 0);
2892 j--;
2893 }
2894
2895 coff_type.num_sizes = i + 1;
2896 for (i--; i >= 0; i--)
2897 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2898 ? 0
2899 : (coff_type.sizes[i + 1]
2900 / coff_type.dimensions[i + 1]));
2901 }
2902 }
2903 else if (coff_symbol_typ == st_Member
2904 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2905 {
2906 /* Is this a bitfield? This is indicated by a structure memeber
2907 having a size field that isn't an array. */
2908 coff_type.bitfield = 1;
2909 }
2910
2911 /* Except for enumeration members & begin/ending of scopes, put the
2912 type word in the aux. symbol table. */
2913 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2914 indx = 0;
2915 else if (coff_inside_enumeration)
2916 indx = cur_file_ptr->void_type;
2917 else
2918 {
2919 if (coff_type.basic_type == bt_Struct
2920 || coff_type.basic_type == bt_Union
2921 || coff_type.basic_type == bt_Enum)
2922 {
2923 if (coff_tag == (char *) NULL)
2924 {
2925 as_warn (_("No tag specified for %s"), name);
2926 return;
2927 }
2928
2929 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2930 coff_type.basic_type);
2931 }
2932
2933 if (coff_is_function)
2934 {
2935 last_func_type_info = coff_type;
2936 last_func_sym_value = coff_sym_value;
2937 return;
2938 }
2939
2940 indx = add_aux_sym_tir (&coff_type,
2941 hash_yes,
2942 &cur_file_ptr->thash_head[0]);
2943 }
2944
2945 /* Do any last minute adjustments that are necessary. */
2946 switch (coff_symbol_typ)
2947 {
2948 default:
2949 break;
2950
2951 /* For the beginning of structs, unions, and enumerations, the
2952 size info needs to be passed in the value field. */
2953 case st_Block:
2954 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2955 != 1)
2956 {
2957 as_warn (_("Bad COFF debugging information"));
2958 return;
2959 }
2960 else
2961 coff_value = coff_type.sizes[0];
2962
2963 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2964 break;
2965
2966 /* For the end of structs, unions, and enumerations, omit the
2967 name which is always ".eos". This needs to be done last, so
2968 that any error reporting above gives the correct name. */
2969 case st_End:
2970 free (name);
2971 name = (char *) NULL;
2972 coff_value = 0;
2973 coff_inside_enumeration = 0;
2974 break;
2975
2976 /* Members of structures and unions that aren't bitfields, need
2977 to adjust the value from a byte offset to a bit offset.
2978 Members of enumerations do not have the value adjusted, and
2979 can be distinguished by indx == indexNil. For enumerations,
2980 update the maximum enumeration value. */
2981 case st_Member:
2982 if (! coff_type.bitfield && ! coff_inside_enumeration)
2983 coff_value *= 8;
2984
2985 break;
2986 }
2987
2988 /* Add the symbol. */
2989 sym = add_ecoff_symbol (name,
2990 coff_symbol_typ,
2991 coff_storage_class,
2992 coff_sym_value,
2993 coff_sym_addend,
2994 (symint_t) coff_value,
2995 indx);
2996
2997 /* deal with struct, union, and enum tags. */
2998 if (coff_symbol_typ == st_Block)
2999 {
3000 /* Create or update the tag information. */
3001 tag_t *tag_ptr = get_tag (name,
3002 sym,
3003 coff_type.basic_type);
3004 forward_t **pf;
3005
3006 /* Remember any forward references. */
3007 for (pf = &sym->forward_ref;
3008 *pf != (forward_t *) NULL;
3009 pf = &(*pf)->next)
3010 ;
3011 *pf = tag_ptr->forward_ref;
3012 tag_ptr->forward_ref = (forward_t *) NULL;
3013 }
3014 }
3015 \f
3016 /* Parse .end directives. */
3017
3018 void
3019 ecoff_directive_end (ignore)
3020 int ignore;
3021 {
3022 char *name;
3023 char name_end;
3024 register int ch;
3025 symbolS *ent;
3026
3027 if (cur_file_ptr == (efdr_t *) NULL)
3028 {
3029 as_warn (_(".end directive without a preceding .file directive"));
3030 demand_empty_rest_of_line ();
3031 return;
3032 }
3033
3034 if (cur_proc_ptr == (proc_t *) NULL)
3035 {
3036 as_warn (_(".end directive without a preceding .ent directive"));
3037 demand_empty_rest_of_line ();
3038 return;
3039 }
3040
3041 name = input_line_pointer;
3042 name_end = get_symbol_end ();
3043
3044 ch = *name;
3045 if (! is_name_beginner (ch))
3046 {
3047 as_warn (_(".end directive has no name"));
3048 *input_line_pointer = name_end;
3049 demand_empty_rest_of_line ();
3050 return;
3051 }
3052
3053 /* The value is the distance between the .end directive and the
3054 corresponding symbol. We create a fake symbol to hold the
3055 current location, and put in the offset when we write out the
3056 symbol. */
3057 ent = symbol_find (name);
3058 if (ent == (symbolS *) NULL)
3059 as_warn (_(".end directive names unknown symbol"));
3060 else
3061 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3062 symbol_new ("L0\001", now_seg,
3063 (valueT) frag_now_fix (),
3064 frag_now),
3065 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3066
3067 cur_proc_ptr = (proc_t *) NULL;
3068
3069 *input_line_pointer = name_end;
3070 demand_empty_rest_of_line ();
3071 }
3072 \f
3073 /* Parse .ent directives. */
3074
3075 void
3076 ecoff_directive_ent (ignore)
3077 int ignore;
3078 {
3079 char *name;
3080 char name_end;
3081 register int ch;
3082
3083 if (cur_file_ptr == (efdr_t *) NULL)
3084 add_file ((const char *) NULL, 0, 1);
3085
3086 if (cur_proc_ptr != (proc_t *) NULL)
3087 {
3088 as_warn (_("second .ent directive found before .end directive"));
3089 demand_empty_rest_of_line ();
3090 return;
3091 }
3092
3093 name = input_line_pointer;
3094 name_end = get_symbol_end ();
3095
3096 ch = *name;
3097 if (! is_name_beginner (ch))
3098 {
3099 as_warn (_(".ent directive has no name"));
3100 *input_line_pointer = name_end;
3101 demand_empty_rest_of_line ();
3102 return;
3103 }
3104
3105 add_procedure (name);
3106
3107 *input_line_pointer = name_end;
3108
3109 /* The .ent directive is sometimes followed by a number. I'm not
3110 really sure what the number means. I don't see any way to store
3111 the information in the PDR. The Irix 4 assembler seems to ignore
3112 the information. */
3113 SKIP_WHITESPACE ();
3114 if (*input_line_pointer == ',')
3115 {
3116 ++input_line_pointer;
3117 SKIP_WHITESPACE ();
3118 }
3119 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3120 (void) get_absolute_expression ();
3121
3122 demand_empty_rest_of_line ();
3123 }
3124 \f
3125 /* Parse .extern directives. */
3126
3127 void
3128 ecoff_directive_extern (ignore)
3129 int ignore;
3130 {
3131 char *name;
3132 int c;
3133 symbolS *symbolp;
3134 valueT size;
3135
3136 name = input_line_pointer;
3137 c = get_symbol_end ();
3138 symbolp = symbol_find_or_make (name);
3139 *input_line_pointer = c;
3140
3141 S_SET_EXTERNAL (symbolp);
3142
3143 if (*input_line_pointer == ',')
3144 ++input_line_pointer;
3145 size = get_absolute_expression ();
3146
3147 symbolp->ecoff_extern_size = size;
3148 }
3149 \f
3150 /* Parse .file directives. */
3151
3152 void
3153 ecoff_directive_file (ignore)
3154 int ignore;
3155 {
3156 int indx;
3157 char *name;
3158 int len;
3159
3160 if (cur_proc_ptr != (proc_t *) NULL)
3161 {
3162 as_warn (_("No way to handle .file within .ent/.end section"));
3163 demand_empty_rest_of_line ();
3164 return;
3165 }
3166
3167 indx = (int) get_absolute_expression ();
3168
3169 /* FIXME: we don't have to save the name here. */
3170 name = demand_copy_C_string (&len);
3171
3172 add_file (name, indx - 1, 0);
3173
3174 demand_empty_rest_of_line ();
3175 }
3176 \f
3177 /* Parse .fmask directives. */
3178
3179 void
3180 ecoff_directive_fmask (ignore)
3181 int ignore;
3182 {
3183 long val;
3184
3185 if (cur_proc_ptr == (proc_t *) NULL)
3186 {
3187 as_warn (_(".fmask outside of .ent"));
3188 demand_empty_rest_of_line ();
3189 return;
3190 }
3191
3192 if (get_absolute_expression_and_terminator (&val) != ',')
3193 {
3194 as_warn (_("Bad .fmask directive"));
3195 --input_line_pointer;
3196 demand_empty_rest_of_line ();
3197 return;
3198 }
3199
3200 cur_proc_ptr->pdr.fregmask = val;
3201 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3202
3203 demand_empty_rest_of_line ();
3204 }
3205 \f
3206 /* Parse .frame directives. */
3207
3208 void
3209 ecoff_directive_frame (ignore)
3210 int ignore;
3211 {
3212 long val;
3213
3214 if (cur_proc_ptr == (proc_t *) NULL)
3215 {
3216 as_warn (_(".frame outside of .ent"));
3217 demand_empty_rest_of_line ();
3218 return;
3219 }
3220
3221 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3222
3223 SKIP_WHITESPACE ();
3224 if (*input_line_pointer++ != ','
3225 || get_absolute_expression_and_terminator (&val) != ',')
3226 {
3227 as_warn (_("Bad .frame directive"));
3228 --input_line_pointer;
3229 demand_empty_rest_of_line ();
3230 return;
3231 }
3232
3233 cur_proc_ptr->pdr.frameoffset = val;
3234
3235 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3236
3237 #if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3238 to Sandro. I don't yet know where this value should be stored, if
3239 anywhere. */
3240 demand_empty_rest_of_line ();
3241 #else
3242 s_ignore (42);
3243 #endif
3244 }
3245 \f
3246 /* Parse .mask directives. */
3247
3248 void
3249 ecoff_directive_mask (ignore)
3250 int ignore;
3251 {
3252 long val;
3253
3254 if (cur_proc_ptr == (proc_t *) NULL)
3255 {
3256 as_warn (_(".mask outside of .ent"));
3257 demand_empty_rest_of_line ();
3258 return;
3259 }
3260
3261 if (get_absolute_expression_and_terminator (&val) != ',')
3262 {
3263 as_warn (_("Bad .mask directive"));
3264 --input_line_pointer;
3265 demand_empty_rest_of_line ();
3266 return;
3267 }
3268
3269 cur_proc_ptr->pdr.regmask = val;
3270 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3271
3272 demand_empty_rest_of_line ();
3273 }
3274 \f
3275 /* Parse .loc directives. */
3276
3277 void
3278 ecoff_directive_loc (ignore)
3279 int ignore;
3280 {
3281 lineno_list_t *list;
3282 symint_t lineno;
3283
3284 if (cur_file_ptr == (efdr_t *) NULL)
3285 {
3286 as_warn (_(".loc before .file"));
3287 demand_empty_rest_of_line ();
3288 return;
3289 }
3290
3291 if (now_seg != text_section)
3292 {
3293 as_warn (_(".loc outside of .text"));
3294 demand_empty_rest_of_line ();
3295 return;
3296 }
3297
3298 /* Skip the file number. */
3299 SKIP_WHITESPACE ();
3300 get_absolute_expression ();
3301 SKIP_WHITESPACE ();
3302
3303 lineno = get_absolute_expression ();
3304
3305 #ifndef NO_LISTING
3306 if (listing)
3307 listing_source_line (lineno);
3308 #endif
3309
3310 /* If we're building stabs, then output a special label rather than
3311 ECOFF line number info. */
3312 if (stabs_seen)
3313 {
3314 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3315 symbol_new ("L0\001", now_seg,
3316 (valueT) frag_now_fix (),
3317 frag_now),
3318 (bfd_vma) 0, 0, lineno);
3319 return;
3320 }
3321
3322 list = allocate_lineno_list ();
3323
3324 list->next = (lineno_list_t *) NULL;
3325 list->file = cur_file_ptr;
3326 list->proc = cur_proc_ptr;
3327 list->frag = frag_now;
3328 list->paddr = frag_now_fix ();
3329 list->lineno = lineno;
3330
3331 /* We don't want to merge files which have line numbers. */
3332 cur_file_ptr->fdr.fMerge = 0;
3333
3334 /* A .loc directive will sometimes appear before a .ent directive,
3335 which means that cur_proc_ptr will be NULL here. Arrange to
3336 patch this up. */
3337 if (cur_proc_ptr == (proc_t *) NULL)
3338 {
3339 lineno_list_t **pl;
3340
3341 pl = &noproc_lineno;
3342 while (*pl != (lineno_list_t *) NULL)
3343 pl = &(*pl)->next;
3344 *pl = list;
3345 }
3346 else
3347 {
3348 last_lineno = list;
3349 *last_lineno_ptr = list;
3350 last_lineno_ptr = &list->next;
3351 }
3352 }
3353
3354 /* The MIPS assembler sometimes inserts nop instructions in the
3355 instruction stream. When this happens, we must patch up the .loc
3356 information so that it points to the instruction after the nop. */
3357
3358 void
3359 ecoff_fix_loc (old_frag, old_frag_offset)
3360 fragS *old_frag;
3361 unsigned long old_frag_offset;
3362 {
3363 if (last_lineno != NULL
3364 && last_lineno->frag == old_frag
3365 && last_lineno->paddr == old_frag_offset)
3366 {
3367 last_lineno->frag = frag_now;
3368 last_lineno->paddr = frag_now_fix ();
3369 }
3370 }
3371 \f
3372 /* Make sure the @stabs symbol is emitted. */
3373
3374 static void
3375 mark_stabs (ignore)
3376 int ignore;
3377 {
3378 if (! stabs_seen)
3379 {
3380 /* Add a dummy @stabs dymbol. */
3381 stabs_seen = 1;
3382 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3383 (symbolS *) NULL,
3384 (bfd_vma) 0, (symint_t) -1,
3385 ECOFF_MARK_STAB (0));
3386 }
3387 }
3388 \f
3389 /* Parse .weakext directives. */
3390 #ifndef TC_MIPS
3391 /* For TC_MIPS use the version in tc-mips.c. */
3392 void
3393 ecoff_directive_weakext (ignore)
3394 int ignore;
3395 {
3396 char *name;
3397 int c;
3398 symbolS *symbolP;
3399 expressionS exp;
3400
3401 name = input_line_pointer;
3402 c = get_symbol_end ();
3403 symbolP = symbol_find_or_make (name);
3404 *input_line_pointer = c;
3405
3406 SKIP_WHITESPACE ();
3407
3408 if (*input_line_pointer == ',')
3409 {
3410 if (S_IS_DEFINED (symbolP))
3411 {
3412 as_bad (_("Ignoring attempt to redefine symbol `%s'."),
3413 S_GET_NAME (symbolP));
3414 ignore_rest_of_line ();
3415 return;
3416 }
3417
3418 ++input_line_pointer;
3419 SKIP_WHITESPACE ();
3420 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3421 {
3422 expression (&exp);
3423 if (exp.X_op != O_symbol)
3424 {
3425 as_bad (_("bad .weakext directive"));
3426 ignore_rest_of_line();
3427 return;
3428 }
3429 symbolP->sy_value = exp;
3430 }
3431 }
3432
3433 S_SET_WEAK (symbolP);
3434
3435 demand_empty_rest_of_line ();
3436 }
3437 #endif /* not TC_MIPS */
3438 \f
3439 /* Handle .stabs directives. The actual parsing routine is done by a
3440 generic routine. This routine is called via OBJ_PROCESS_STAB.
3441 When this is called, input_line_pointer will be pointing at the
3442 value field of the stab.
3443
3444 .stabs directives have five fields:
3445 "string" a string, encoding the type information.
3446 code a numeric code, defined in <stab.h>
3447 0 a zero
3448 desc a zero or line number
3449 value a numeric value or an address.
3450
3451 If the value is relocatable, we transform this into:
3452 iss points as an index into string space
3453 value value from lookup of the name
3454 st st from lookup of the name
3455 sc sc from lookup of the name
3456 index code|CODE_MASK
3457
3458 If the value is not relocatable, we transform this into:
3459 iss points as an index into string space
3460 value value
3461 st st_Nil
3462 sc sc_Nil
3463 index code|CODE_MASK
3464
3465 .stabn directives have four fields (string is null):
3466 code a numeric code, defined in <stab.h>
3467 0 a zero
3468 desc a zero or a line number
3469 value a numeric value or an address. */
3470
3471 void
3472 ecoff_stab (sec, what, string, type, other, desc)
3473 segT sec;
3474 int what;
3475 const char *string;
3476 int type;
3477 int other;
3478 int desc;
3479 {
3480 efdr_t *save_file_ptr = cur_file_ptr;
3481 symbolS *sym;
3482 symint_t value;
3483 bfd_vma addend;
3484 st_t st;
3485 sc_t sc;
3486 symint_t indx;
3487 localsym_t *hold = NULL;
3488
3489 ecoff_debugging_seen = 1;
3490
3491 /* We don't handle .stabd. */
3492 if (what != 's' && what != 'n')
3493 {
3494 as_bad (_(".stab%c is not supported"), what);
3495 return;
3496 }
3497
3498 /* A .stabn uses a null name, not an empty string. */
3499 if (what == 'n')
3500 string = NULL;
3501
3502 /* We ignore the other field. */
3503 if (other != 0)
3504 as_warn (_(".stab%c: ignoring non-zero other field"), what);
3505
3506 /* Make sure we have a current file. */
3507 if (cur_file_ptr == (efdr_t *) NULL)
3508 {
3509 add_file ((const char *) NULL, 0, 1);
3510 save_file_ptr = cur_file_ptr;
3511 }
3512
3513 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3514 signal to gdb. */
3515 if (stabs_seen == 0)
3516 mark_stabs (0);
3517
3518 /* Line number stabs are handled differently, since they have two
3519 values, the line number and the address of the label. We use the
3520 index field (aka desc) to hold the line number, and the value
3521 field to hold the address. The symbol type is st_Label, which
3522 should be different from the other stabs, so that gdb can
3523 recognize it. */
3524 if (type == N_SLINE)
3525 {
3526 SYMR dummy_symr;
3527 char *name;
3528 char name_end;
3529
3530 #ifndef NO_LISTING
3531 if (listing)
3532 listing_source_line ((unsigned int) desc);
3533 #endif
3534
3535 dummy_symr.index = desc;
3536 if (dummy_symr.index != desc)
3537 {
3538 as_warn (_("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3539 desc, what);
3540 return;
3541 }
3542
3543 name = input_line_pointer;
3544 name_end = get_symbol_end ();
3545
3546 sym = symbol_find_or_make (name);
3547 *input_line_pointer = name_end;
3548
3549 value = 0;
3550 addend = 0;
3551 st = st_Label;
3552 sc = sc_Text;
3553 indx = desc;
3554 }
3555 else
3556 {
3557 #ifndef NO_LISTING
3558 if (listing && (type == N_SO || type == N_SOL))
3559 listing_source_file (string);
3560 #endif
3561
3562 if (isdigit (*input_line_pointer)
3563 || *input_line_pointer == '-'
3564 || *input_line_pointer == '+')
3565 {
3566 st = st_Nil;
3567 sc = sc_Nil;
3568 sym = (symbolS *) NULL;
3569 value = get_absolute_expression ();
3570 addend = 0;
3571 }
3572 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3573 {
3574 as_warn (_("Illegal .stab%c directive, bad character"), what);
3575 return;
3576 }
3577 else
3578 {
3579 expressionS exp;
3580
3581 sc = sc_Nil;
3582 st = st_Nil;
3583
3584 expression (&exp);
3585 if (exp.X_op == O_constant)
3586 {
3587 sym = NULL;
3588 value = exp.X_add_number;
3589 addend = 0;
3590 }
3591 else if (exp.X_op == O_symbol)
3592 {
3593 sym = exp.X_add_symbol;
3594 value = 0;
3595 addend = exp.X_add_number;
3596 }
3597 else
3598 {
3599 sym = make_expr_symbol (&exp);
3600 value = 0;
3601 addend = 0;
3602 }
3603 }
3604
3605 indx = ECOFF_MARK_STAB (type);
3606 }
3607
3608 /* Don't store the stabs symbol we are creating as the type of the
3609 ECOFF symbol. We want to compute the type of the ECOFF symbol
3610 independently. */
3611 if (sym != (symbolS *) NULL)
3612 hold = sym->ecoff_symbol;
3613
3614 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3615
3616 if (sym != (symbolS *) NULL)
3617 sym->ecoff_symbol = hold;
3618
3619 /* Restore normal file type. */
3620 cur_file_ptr = save_file_ptr;
3621 }
3622 \f
3623 /* Frob an ECOFF symbol. Small common symbols go into a special
3624 .scommon section rather than bfd_com_section. */
3625
3626 void
3627 ecoff_frob_symbol (sym)
3628 symbolS *sym;
3629 {
3630 if (S_IS_COMMON (sym)
3631 && S_GET_VALUE (sym) > 0
3632 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3633 {
3634 static asection scom_section;
3635 static asymbol scom_symbol;
3636
3637 /* We must construct a fake section similar to bfd_com_section
3638 but with the name .scommon. */
3639 if (scom_section.name == NULL)
3640 {
3641 scom_section = bfd_com_section;
3642 scom_section.name = ".scommon";
3643 scom_section.output_section = &scom_section;
3644 scom_section.symbol = &scom_symbol;
3645 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3646 scom_symbol = *bfd_com_section.symbol;
3647 scom_symbol.name = ".scommon";
3648 scom_symbol.section = &scom_section;
3649 }
3650 S_SET_SEGMENT (sym, &scom_section);
3651 }
3652
3653 /* Double check weak symbols. */
3654 if (sym->bsym->flags & BSF_WEAK)
3655 {
3656 if (S_IS_COMMON (sym))
3657 as_bad (_("Symbol `%s' can not be both weak and common"),
3658 S_GET_NAME (sym));
3659 }
3660 }
3661 \f
3662 /* Add bytes to the symbolic information buffer. */
3663
3664 static char *
3665 ecoff_add_bytes (buf, bufend, bufptr, need)
3666 char **buf;
3667 char **bufend;
3668 char *bufptr;
3669 unsigned long need;
3670 {
3671 unsigned long at;
3672 unsigned long want;
3673
3674 at = bufptr - *buf;
3675 need -= *bufend - bufptr;
3676 if (need < PAGE_SIZE)
3677 need = PAGE_SIZE;
3678 want = (*bufend - *buf) + need;
3679 *buf = xrealloc (*buf, want);
3680 *bufend = *buf + want;
3681 return *buf + at;
3682 }
3683
3684 /* Adjust the symbolic information buffer to the alignment required
3685 for the ECOFF target debugging information. */
3686
3687 static unsigned long
3688 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3689 const struct ecoff_debug_swap *backend;
3690 char **buf;
3691 char **bufend;
3692 unsigned long offset;
3693 char **bufptrptr;
3694 {
3695 bfd_size_type align;
3696
3697 align = backend->debug_align;
3698 if ((offset & (align - 1)) != 0)
3699 {
3700 unsigned long add;
3701
3702 add = align - (offset & (align - 1));
3703 if (*bufend - (*buf + offset) < add)
3704 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3705 memset (*buf + offset, 0, add);
3706 offset += add;
3707 if (bufptrptr != (char **) NULL)
3708 *bufptrptr = *buf + offset;
3709 }
3710
3711 return offset;
3712 }
3713
3714 /* Build the line number information. */
3715
3716 static unsigned long
3717 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3718 const struct ecoff_debug_swap *backend;
3719 char **buf;
3720 char **bufend;
3721 unsigned long offset;
3722 long *linecntptr;
3723 {
3724 char *bufptr;
3725 register lineno_list_t *l;
3726 lineno_list_t *last;
3727 efdr_t *file;
3728 proc_t *proc;
3729 unsigned long c;
3730 long iline;
3731 long totcount;
3732 lineno_list_t first;
3733
3734 if (linecntptr != (long *) NULL)
3735 *linecntptr = 0;
3736
3737 bufptr = *buf + offset;
3738
3739 file = (efdr_t *) NULL;
3740 proc = (proc_t *) NULL;
3741 last = (lineno_list_t *) NULL;
3742 c = offset;
3743 iline = 0;
3744 totcount = 0;
3745
3746 /* For some reason the address of the first procedure is ignored
3747 when reading line numbers. This doesn't matter if the address of
3748 the first procedure is 0, but when gcc is generating MIPS
3749 embedded PIC code, it will put strings in the .text section
3750 before the first procedure. We cope by inserting a dummy line if
3751 the address of the first procedure is not 0. Hopefully this
3752 won't screw things up too badly. */
3753 if (first_proc_ptr != (proc_t *) NULL
3754 && first_lineno != (lineno_list_t *) NULL
3755 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3756 + bfd_get_section_vma (stdoutput,
3757 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3758 != 0))
3759 {
3760 first.file = first_lineno->file;
3761 first.proc = first_lineno->proc;
3762 first.frag = &zero_address_frag;
3763 first.paddr = 0;
3764 first.lineno = 0;
3765
3766 first.next = first_lineno;
3767 first_lineno = &first;
3768 }
3769
3770 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3771 {
3772 long count;
3773 long delta;
3774
3775 /* Get the offset to the memory address of the next line number
3776 (in words). Do this first, so that we can skip ahead to the
3777 next useful line number entry. */
3778 if (l->next == (lineno_list_t *) NULL)
3779 {
3780 /* We want a count of zero, but it will be decremented
3781 before it is used. */
3782 count = 1;
3783 }
3784 else if (l->next->frag->fr_address + l->next->paddr
3785 > l->frag->fr_address + l->paddr)
3786 {
3787 count = ((l->next->frag->fr_address + l->next->paddr
3788 - (l->frag->fr_address + l->paddr))
3789 >> 2);
3790 }
3791 else
3792 {
3793 /* Don't change last, so we still get the right delta. */
3794 continue;
3795 }
3796
3797 if (l->file != file || l->proc != proc)
3798 {
3799 if (l->proc != proc && proc != (proc_t *) NULL)
3800 proc->pdr.lnHigh = last->lineno;
3801 if (l->file != file && file != (efdr_t *) NULL)
3802 {
3803 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3804 file->fdr.cline = totcount + count;
3805 if (linecntptr != (long *) NULL)
3806 *linecntptr += totcount + count;
3807 totcount = 0;
3808 }
3809
3810 if (l->file != file)
3811 {
3812 efdr_t *last_file = file;
3813
3814 file = l->file;
3815 if (last_file != (efdr_t *) NULL)
3816 file->fdr.ilineBase
3817 = last_file->fdr.ilineBase + last_file->fdr.cline;
3818 else
3819 file->fdr.ilineBase = 0;
3820 file->fdr.cbLineOffset = c;
3821 }
3822 if (l->proc != proc)
3823 {
3824 proc = l->proc;
3825 if (proc != (proc_t *) NULL)
3826 {
3827 proc->pdr.lnLow = l->lineno;
3828 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3829 proc->pdr.iline = totcount;
3830 }
3831 }
3832
3833 last = (lineno_list_t *) NULL;
3834 }
3835
3836 totcount += count;
3837
3838 /* Get the offset to this line number. */
3839 if (last == (lineno_list_t *) NULL)
3840 delta = 0;
3841 else
3842 delta = l->lineno - last->lineno;
3843
3844 /* Put in the offset to this line number. */
3845 while (delta != 0)
3846 {
3847 int setcount;
3848
3849 /* 1 is added to each count read. */
3850 --count;
3851 /* We can only adjust the word count by up to 15 words at a
3852 time. */
3853 if (count <= 0x0f)
3854 {
3855 setcount = count;
3856 count = 0;
3857 }
3858 else
3859 {
3860 setcount = 0x0f;
3861 count -= 0x0f;
3862 }
3863 if (delta >= -7 && delta <= 7)
3864 {
3865 if (bufptr >= *bufend)
3866 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3867 *bufptr++ = setcount + (delta << 4);
3868 delta = 0;
3869 ++c;
3870 }
3871 else
3872 {
3873 int set;
3874
3875 if (*bufend - bufptr < 3)
3876 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3877 *bufptr++ = setcount + (8 << 4);
3878 if (delta < -0x8000)
3879 {
3880 set = -0x8000;
3881 delta += 0x8000;
3882 }
3883 else if (delta > 0x7fff)
3884 {
3885 set = 0x7fff;
3886 delta -= 0x7fff;
3887 }
3888 else
3889 {
3890 set = delta;
3891 delta = 0;
3892 }
3893 *bufptr++ = set >> 8;
3894 *bufptr++ = set & 0xffff;
3895 c += 3;
3896 }
3897 }
3898
3899 /* Finish adjusting the count. */
3900 while (count > 0)
3901 {
3902 if (bufptr >= *bufend)
3903 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3904 /* 1 is added to each count read. */
3905 --count;
3906 if (count > 0x0f)
3907 {
3908 *bufptr++ = 0x0f;
3909 count -= 0x0f;
3910 }
3911 else
3912 {
3913 *bufptr++ = count;
3914 count = 0;
3915 }
3916 ++c;
3917 }
3918
3919 ++iline;
3920 last = l;
3921 }
3922
3923 if (proc != (proc_t *) NULL)
3924 proc->pdr.lnHigh = last->lineno;
3925 if (file != (efdr_t *) NULL)
3926 {
3927 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3928 file->fdr.cline = totcount;
3929 }
3930
3931 if (linecntptr != (long *) NULL)
3932 *linecntptr += totcount;
3933
3934 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3935
3936 return c;
3937 }
3938
3939 /* Build and swap out the symbols. */
3940
3941 static unsigned long
3942 ecoff_build_symbols (backend, buf, bufend, offset)
3943 const struct ecoff_debug_swap *backend;
3944 char **buf;
3945 char **bufend;
3946 unsigned long offset;
3947 {
3948 const bfd_size_type external_sym_size = backend->external_sym_size;
3949 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3950 = backend->swap_sym_out;
3951 char *sym_out;
3952 long isym;
3953 vlinks_t *file_link;
3954
3955 sym_out = *buf + offset;
3956
3957 isym = 0;
3958
3959 /* The symbols are stored by file. */
3960 for (file_link = file_desc.first;
3961 file_link != (vlinks_t *) NULL;
3962 file_link = file_link->next)
3963 {
3964 int ifilesym;
3965 int fil_cnt;
3966 efdr_t *fil_ptr;
3967 efdr_t *fil_end;
3968
3969 if (file_link->next == (vlinks_t *) NULL)
3970 fil_cnt = file_desc.objects_last_page;
3971 else
3972 fil_cnt = file_desc.objects_per_page;
3973 fil_ptr = file_link->datum->file;
3974 fil_end = fil_ptr + fil_cnt;
3975 for (; fil_ptr < fil_end; fil_ptr++)
3976 {
3977 vlinks_t *sym_link;
3978
3979 fil_ptr->fdr.isymBase = isym;
3980 ifilesym = isym;
3981 for (sym_link = fil_ptr->symbols.first;
3982 sym_link != (vlinks_t *) NULL;
3983 sym_link = sym_link->next)
3984 {
3985 int sym_cnt;
3986 localsym_t *sym_ptr;
3987 localsym_t *sym_end;
3988
3989 if (sym_link->next == (vlinks_t *) NULL)
3990 sym_cnt = fil_ptr->symbols.objects_last_page;
3991 else
3992 sym_cnt = fil_ptr->symbols.objects_per_page;
3993 sym_ptr = sym_link->datum->sym;
3994 sym_end = sym_ptr + sym_cnt;
3995 for (; sym_ptr < sym_end; sym_ptr++)
3996 {
3997 int local;
3998 symbolS *as_sym;
3999 forward_t *f;
4000
4001 know (sym_ptr->file_ptr == fil_ptr);
4002
4003 /* If there is no associated gas symbol, then this
4004 is a pure debugging symbol. We have already
4005 added the name (if any) to fil_ptr->strings.
4006 Otherwise we must decide whether this is an
4007 external or a local symbol (actually, it may be
4008 both if the local provides additional debugging
4009 information for the external). */
4010 local = 1;
4011 as_sym = sym_ptr->as_sym;
4012 if (as_sym != (symbolS *) NULL)
4013 {
4014 symint_t indx;
4015
4016 /* The value of a block start symbol is the
4017 offset from the start of the procedure. For
4018 other symbols we just use the gas value (but
4019 we must offset it by the vma of the section,
4020 just as BFD does, because BFD will not see
4021 this value). */
4022 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4023 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4024 {
4025 symbolS *begin_sym;
4026
4027 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4028 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4029 if (S_GET_SEGMENT (as_sym)
4030 != S_GET_SEGMENT (begin_sym))
4031 as_warn (_(".begin/.bend in different segments"));
4032 sym_ptr->ecoff_sym.asym.value =
4033 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4034 }
4035 else
4036 sym_ptr->ecoff_sym.asym.value =
4037 (S_GET_VALUE (as_sym)
4038 + bfd_get_section_vma (stdoutput,
4039 S_GET_SEGMENT (as_sym))
4040 + sym_ptr->addend);
4041
4042 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4043
4044 /* Set st_Proc to st_StaticProc for local
4045 functions. */
4046 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4047 && S_IS_DEFINED (as_sym)
4048 && ! S_IS_EXTERNAL (as_sym)
4049 && ! S_IS_WEAK (as_sym))
4050 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4051
4052 /* Get the type and storage class based on where
4053 the symbol actually wound up. Traditionally,
4054 N_LBRAC and N_RBRAC are *not* relocated. */
4055 indx = sym_ptr->ecoff_sym.asym.index;
4056 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4057 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4058 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4059 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4060 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4061 {
4062 segT seg;
4063 const char *segname;
4064 st_t st;
4065 sc_t sc;
4066
4067 seg = S_GET_SEGMENT (as_sym);
4068 segname = segment_name (seg);
4069
4070 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4071 && (S_IS_EXTERNAL (as_sym)
4072 || S_IS_WEAK (as_sym)
4073 || ! S_IS_DEFINED (as_sym)))
4074 {
4075 if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
4076 st = st_Proc;
4077 else
4078 st = st_Global;
4079 }
4080 else if (seg == text_section)
4081 st = st_Label;
4082 else
4083 st = st_Static;
4084
4085 if (! S_IS_DEFINED (as_sym))
4086 {
4087 if (as_sym->ecoff_extern_size == 0
4088 || (as_sym->ecoff_extern_size
4089 > bfd_get_gp_size (stdoutput)))
4090 sc = sc_Undefined;
4091 else
4092 {
4093 sc = sc_SUndefined;
4094 sym_ptr->ecoff_sym.asym.value =
4095 as_sym->ecoff_extern_size;
4096 }
4097 #ifdef S_SET_SIZE
4098 S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
4099 #endif
4100 }
4101 else if (S_IS_COMMON (as_sym))
4102 {
4103 if (S_GET_VALUE (as_sym) > 0
4104 && (S_GET_VALUE (as_sym)
4105 <= bfd_get_gp_size (stdoutput)))
4106 sc = sc_SCommon;
4107 else
4108 sc = sc_Common;
4109 }
4110 else if (seg == text_section)
4111 sc = sc_Text;
4112 else if (seg == data_section)
4113 sc = sc_Data;
4114 else if (strcmp (segname, ".rdata") == 0
4115 || strcmp (segname, ".rodata") == 0)
4116 sc = sc_RData;
4117 else if (strcmp (segname, ".sdata") == 0)
4118 sc = sc_SData;
4119 else if (seg == bss_section)
4120 sc = sc_Bss;
4121 else if (strcmp (segname, ".sbss") == 0)
4122 sc = sc_SBss;
4123 else if (seg == &bfd_abs_section)
4124 sc = sc_Abs;
4125 else
4126 {
4127 /* This must be a user named section.
4128 This is not possible in ECOFF, but it
4129 is in ELF. */
4130 sc = sc_Data;
4131 }
4132
4133 sym_ptr->ecoff_sym.asym.st = (int) st;
4134 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4135 }
4136
4137 /* This is just an external symbol if it is
4138 outside a procedure and it has a type.
4139 FIXME: g++ will generate symbols which have
4140 different names in the debugging information
4141 than the actual symbol. Should we handle
4142 them here? */
4143 if ((S_IS_EXTERNAL (as_sym)
4144 || S_IS_WEAK (as_sym)
4145 || ! S_IS_DEFINED (as_sym))
4146 && sym_ptr->proc_ptr == (proc_t *) NULL
4147 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4148 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4149 local = 0;
4150
4151 /* This is just an external symbol if it is a
4152 common symbol. */
4153 if (S_IS_COMMON (as_sym))
4154 local = 0;
4155
4156 /* If an st_end symbol has an associated gas
4157 symbol, then it is a local label created for
4158 a .bend or .end directive. Stabs line
4159 numbers will have \001 in the names. */
4160 if (local
4161 && sym_ptr->ecoff_sym.asym.st != st_End
4162 && strchr (sym_ptr->name, '\001') == 0)
4163 sym_ptr->ecoff_sym.asym.iss =
4164 add_string (&fil_ptr->strings,
4165 fil_ptr->str_hash,
4166 sym_ptr->name,
4167 (shash_t **) NULL);
4168 }
4169
4170 /* We now know the index of this symbol; fill in
4171 locations that have been waiting for that
4172 information. */
4173 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4174 {
4175 localsym_t *begin_ptr;
4176 st_t begin_type;
4177
4178 know (local);
4179 begin_ptr = sym_ptr->begin_ptr;
4180 know (begin_ptr->sym_index != -1);
4181 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4182 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4183 sym_ptr->ecoff_sym.asym.iss =
4184 begin_ptr->ecoff_sym.asym.iss;
4185
4186 begin_type = begin_ptr->ecoff_sym.asym.st;
4187 if (begin_type == st_File
4188 || begin_type == st_Block)
4189 {
4190 begin_ptr->ecoff_sym.asym.index =
4191 isym - ifilesym + 1;
4192 (*swap_sym_out) (stdoutput,
4193 &begin_ptr->ecoff_sym.asym,
4194 (*buf
4195 + offset
4196 + (begin_ptr->sym_index
4197 * external_sym_size)));
4198 }
4199 else
4200 {
4201 know (begin_ptr->index_ptr != (aux_t *) NULL);
4202 begin_ptr->index_ptr->data.isym =
4203 isym - ifilesym + 1;
4204 }
4205
4206 /* The value of the symbol marking the end of a
4207 procedure is the size of the procedure. The
4208 value of the symbol marking the end of a
4209 block is the offset from the start of the
4210 procedure to the block. */
4211 if (begin_type == st_Proc
4212 || begin_type == st_StaticProc)
4213 {
4214 know (as_sym != (symbolS *) NULL);
4215 know (begin_ptr->as_sym != (symbolS *) NULL);
4216 if (S_GET_SEGMENT (as_sym)
4217 != S_GET_SEGMENT (begin_ptr->as_sym))
4218 as_warn (_(".begin/.bend in different segments"));
4219 sym_ptr->ecoff_sym.asym.value =
4220 (S_GET_VALUE (as_sym)
4221 - S_GET_VALUE (begin_ptr->as_sym));
4222
4223 /* If the size is odd, this is probably a
4224 mips16 function; force it to be even. */
4225 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4226 ++sym_ptr->ecoff_sym.asym.value;
4227
4228 #ifdef S_SET_SIZE
4229 S_SET_SIZE (begin_ptr->as_sym,
4230 sym_ptr->ecoff_sym.asym.value);
4231 #endif
4232 }
4233 else if (begin_type == st_Block
4234 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4235 {
4236 symbolS *begin_sym;
4237
4238 know (as_sym != (symbolS *) NULL);
4239 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4240 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4241 if (S_GET_SEGMENT (as_sym)
4242 != S_GET_SEGMENT (begin_sym))
4243 as_warn (_(".begin/.bend in different segments"));
4244 sym_ptr->ecoff_sym.asym.value =
4245 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4246 }
4247 }
4248
4249 for (f = sym_ptr->forward_ref;
4250 f != (forward_t *) NULL;
4251 f = f->next)
4252 {
4253 know (local);
4254 f->ifd_ptr->data.isym = fil_ptr->file_index;
4255 f->index_ptr->data.rndx.index = isym - ifilesym;
4256 }
4257
4258 if (local)
4259 {
4260 if (*bufend - sym_out < external_sym_size)
4261 sym_out = ecoff_add_bytes (buf, bufend,
4262 sym_out,
4263 external_sym_size);
4264 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4265 sym_out);
4266 sym_out += external_sym_size;
4267
4268 sym_ptr->sym_index = isym;
4269
4270 if (sym_ptr->proc_ptr != (proc_t *) NULL
4271 && sym_ptr->proc_ptr->sym == sym_ptr)
4272 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4273
4274 ++isym;
4275 }
4276
4277 /* Record the local symbol index and file number in
4278 case this is an external symbol. Note that this
4279 destroys the asym.index field. */
4280 if (as_sym != (symbolS *) NULL
4281 && as_sym->ecoff_symbol == sym_ptr)
4282 {
4283 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4284 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4285 && local)
4286 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4287 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4288
4289 /* Don't try to merge an FDR which has an
4290 external symbol attached to it. */
4291 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4292 fil_ptr->fdr.fMerge = 0;
4293 }
4294 }
4295 }
4296 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4297 }
4298 }
4299
4300 return offset + isym * external_sym_size;
4301 }
4302
4303 /* Swap out the procedure information. */
4304
4305 static unsigned long
4306 ecoff_build_procs (backend, buf, bufend, offset)
4307 const struct ecoff_debug_swap *backend;
4308 char **buf;
4309 char **bufend;
4310 unsigned long offset;
4311 {
4312 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4313 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4314 = backend->swap_pdr_out;
4315 char *pdr_out;
4316 long iproc;
4317 vlinks_t *file_link;
4318
4319 pdr_out = *buf + offset;
4320
4321 iproc = 0;
4322
4323 /* The procedures are stored by file. */
4324 for (file_link = file_desc.first;
4325 file_link != (vlinks_t *) NULL;
4326 file_link = file_link->next)
4327 {
4328 int fil_cnt;
4329 efdr_t *fil_ptr;
4330 efdr_t *fil_end;
4331
4332 if (file_link->next == (vlinks_t *) NULL)
4333 fil_cnt = file_desc.objects_last_page;
4334 else
4335 fil_cnt = file_desc.objects_per_page;
4336 fil_ptr = file_link->datum->file;
4337 fil_end = fil_ptr + fil_cnt;
4338 for (; fil_ptr < fil_end; fil_ptr++)
4339 {
4340 vlinks_t *proc_link;
4341 int first;
4342
4343 fil_ptr->fdr.ipdFirst = iproc;
4344 first = 1;
4345 for (proc_link = fil_ptr->procs.first;
4346 proc_link != (vlinks_t *) NULL;
4347 proc_link = proc_link->next)
4348 {
4349 int prc_cnt;
4350 proc_t *proc_ptr;
4351 proc_t *proc_end;
4352
4353 if (proc_link->next == (vlinks_t *) NULL)
4354 prc_cnt = fil_ptr->procs.objects_last_page;
4355 else
4356 prc_cnt = fil_ptr->procs.objects_per_page;
4357 proc_ptr = proc_link->datum->proc;
4358 proc_end = proc_ptr + prc_cnt;
4359 for (; proc_ptr < proc_end; proc_ptr++)
4360 {
4361 symbolS *adr_sym;
4362 unsigned long adr;
4363
4364 adr_sym = proc_ptr->sym->as_sym;
4365 adr = (S_GET_VALUE (adr_sym)
4366 + bfd_get_section_vma (stdoutput,
4367 S_GET_SEGMENT (adr_sym)));
4368 if (first)
4369 {
4370 /* This code used to force the adr of the very
4371 first fdr to be 0. However, the native tools
4372 don't do that, and I can't remember why it
4373 used to work that way, so I took it out. */
4374 fil_ptr->fdr.adr = adr;
4375 first = 0;
4376 }
4377 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4378 if (*bufend - pdr_out < external_pdr_size)
4379 pdr_out = ecoff_add_bytes (buf, bufend,
4380 pdr_out,
4381 external_pdr_size);
4382 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4383 pdr_out += external_pdr_size;
4384 ++iproc;
4385 }
4386 }
4387 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4388 }
4389 }
4390
4391 return offset + iproc * external_pdr_size;
4392 }
4393
4394 /* Swap out the aux information. */
4395
4396 static unsigned long
4397 ecoff_build_aux (backend, buf, bufend, offset)
4398 const struct ecoff_debug_swap *backend;
4399 char **buf;
4400 char **bufend;
4401 unsigned long offset;
4402 {
4403 int bigendian;
4404 union aux_ext *aux_out;
4405 long iaux;
4406 vlinks_t *file_link;
4407
4408 bigendian = bfd_big_endian (stdoutput);
4409
4410 aux_out = (union aux_ext *) (*buf + offset);
4411
4412 iaux = 0;
4413
4414 /* The aux entries are stored by file. */
4415 for (file_link = file_desc.first;
4416 file_link != (vlinks_t *) NULL;
4417 file_link = file_link->next)
4418 {
4419 int fil_cnt;
4420 efdr_t *fil_ptr;
4421 efdr_t *fil_end;
4422
4423 if (file_link->next == (vlinks_t *) NULL)
4424 fil_cnt = file_desc.objects_last_page;
4425 else
4426 fil_cnt = file_desc.objects_per_page;
4427 fil_ptr = file_link->datum->file;
4428 fil_end = fil_ptr + fil_cnt;
4429 for (; fil_ptr < fil_end; fil_ptr++)
4430 {
4431 vlinks_t *aux_link;
4432
4433 fil_ptr->fdr.fBigendian = bigendian;
4434 fil_ptr->fdr.iauxBase = iaux;
4435 for (aux_link = fil_ptr->aux_syms.first;
4436 aux_link != (vlinks_t *) NULL;
4437 aux_link = aux_link->next)
4438 {
4439 int aux_cnt;
4440 aux_t *aux_ptr;
4441 aux_t *aux_end;
4442
4443 if (aux_link->next == (vlinks_t *) NULL)
4444 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4445 else
4446 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4447 aux_ptr = aux_link->datum->aux;
4448 aux_end = aux_ptr + aux_cnt;
4449 for (; aux_ptr < aux_end; aux_ptr++)
4450 {
4451 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4452 aux_out = ((union aux_ext *)
4453 ecoff_add_bytes (buf, bufend,
4454 (char *) aux_out,
4455 sizeof (union aux_ext)));
4456 switch (aux_ptr->type)
4457 {
4458 case aux_tir:
4459 (*backend->swap_tir_out) (bigendian,
4460 &aux_ptr->data.ti,
4461 &aux_out->a_ti);
4462 break;
4463 case aux_rndx:
4464 (*backend->swap_rndx_out) (bigendian,
4465 &aux_ptr->data.rndx,
4466 &aux_out->a_rndx);
4467 break;
4468 case aux_dnLow:
4469 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4470 aux_out);
4471 break;
4472 case aux_dnHigh:
4473 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4474 aux_out);
4475 break;
4476 case aux_isym:
4477 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4478 aux_out);
4479 break;
4480 case aux_iss:
4481 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4482 aux_out);
4483 break;
4484 case aux_width:
4485 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4486 aux_out);
4487 break;
4488 case aux_count:
4489 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4490 aux_out);
4491 break;
4492 }
4493
4494 ++aux_out;
4495 ++iaux;
4496 }
4497 }
4498 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4499 }
4500 }
4501
4502 return ecoff_padding_adjust (backend, buf, bufend,
4503 offset + iaux * sizeof (union aux_ext),
4504 (char **) NULL);
4505 }
4506
4507 /* Copy out the strings from a varray_t. This returns the number of
4508 bytes copied, rather than the new offset. */
4509
4510 static unsigned long
4511 ecoff_build_strings (buf, bufend, offset, vp)
4512 char **buf;
4513 char **bufend;
4514 unsigned long offset;
4515 varray_t *vp;
4516 {
4517 unsigned long istr;
4518 char *str_out;
4519 vlinks_t *str_link;
4520
4521 str_out = *buf + offset;
4522
4523 istr = 0;
4524
4525 for (str_link = vp->first;
4526 str_link != (vlinks_t *) NULL;
4527 str_link = str_link->next)
4528 {
4529 unsigned long str_cnt;
4530
4531 if (str_link->next == (vlinks_t *) NULL)
4532 str_cnt = vp->objects_last_page;
4533 else
4534 str_cnt = vp->objects_per_page;
4535
4536 if (*bufend - str_out < str_cnt)
4537 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4538
4539 memcpy (str_out, str_link->datum->byte, str_cnt);
4540 str_out += str_cnt;
4541 istr += str_cnt;
4542 }
4543
4544 return istr;
4545 }
4546
4547 /* Dump out the local strings. */
4548
4549 static unsigned long
4550 ecoff_build_ss (backend, buf, bufend, offset)
4551 const struct ecoff_debug_swap *backend;
4552 char **buf;
4553 char **bufend;
4554 unsigned long offset;
4555 {
4556 long iss;
4557 vlinks_t *file_link;
4558
4559 iss = 0;
4560
4561 for (file_link = file_desc.first;
4562 file_link != (vlinks_t *) NULL;
4563 file_link = file_link->next)
4564 {
4565 int fil_cnt;
4566 efdr_t *fil_ptr;
4567 efdr_t *fil_end;
4568
4569 if (file_link->next == (vlinks_t *) NULL)
4570 fil_cnt = file_desc.objects_last_page;
4571 else
4572 fil_cnt = file_desc.objects_per_page;
4573 fil_ptr = file_link->datum->file;
4574 fil_end = fil_ptr + fil_cnt;
4575 for (; fil_ptr < fil_end; fil_ptr++)
4576 {
4577 long ss_cnt;
4578
4579 fil_ptr->fdr.issBase = iss;
4580 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4581 &fil_ptr->strings);
4582 fil_ptr->fdr.cbSs = ss_cnt;
4583 iss += ss_cnt;
4584 }
4585 }
4586
4587 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4588 (char **) NULL);
4589 }
4590
4591 /* Swap out the file descriptors. */
4592
4593 static unsigned long
4594 ecoff_build_fdr (backend, buf, bufend, offset)
4595 const struct ecoff_debug_swap *backend;
4596 char **buf;
4597 char **bufend;
4598 unsigned long offset;
4599 {
4600 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4601 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4602 = backend->swap_fdr_out;
4603 long ifile;
4604 char *fdr_out;
4605 vlinks_t *file_link;
4606
4607 ifile = 0;
4608
4609 fdr_out = *buf + offset;
4610
4611 for (file_link = file_desc.first;
4612 file_link != (vlinks_t *) NULL;
4613 file_link = file_link->next)
4614 {
4615 int fil_cnt;
4616 efdr_t *fil_ptr;
4617 efdr_t *fil_end;
4618
4619 if (file_link->next == (vlinks_t *) NULL)
4620 fil_cnt = file_desc.objects_last_page;
4621 else
4622 fil_cnt = file_desc.objects_per_page;
4623 fil_ptr = file_link->datum->file;
4624 fil_end = fil_ptr + fil_cnt;
4625 for (; fil_ptr < fil_end; fil_ptr++)
4626 {
4627 if (*bufend - fdr_out < external_fdr_size)
4628 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4629 external_fdr_size);
4630 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4631 fdr_out += external_fdr_size;
4632 ++ifile;
4633 }
4634 }
4635
4636 return offset + ifile * external_fdr_size;
4637 }
4638
4639 /* Set up the external symbols. These are supposed to be handled by
4640 the backend. This routine just gets the right information and
4641 calls a backend function to deal with it. */
4642
4643 static void
4644 ecoff_setup_ext ()
4645 {
4646 register symbolS *sym;
4647
4648 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4649 {
4650 if (sym->ecoff_symbol == NULL)
4651 continue;
4652
4653 /* If this is a local symbol, then force the fields to zero. */
4654 if (! S_IS_EXTERNAL (sym)
4655 && ! S_IS_WEAK (sym)
4656 && S_IS_DEFINED (sym))
4657 {
4658 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4659 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4660 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4661 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4662 }
4663
4664 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4665 }
4666 }
4667
4668 /* Build the ECOFF debugging information. */
4669
4670 unsigned long
4671 ecoff_build_debug (hdr, bufp, backend)
4672 HDRR *hdr;
4673 char **bufp;
4674 const struct ecoff_debug_swap *backend;
4675 {
4676 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4677 tag_t *ptag;
4678 tag_t *ptag_next;
4679 efdr_t *fil_ptr;
4680 int end_warning;
4681 efdr_t *hold_file_ptr;
4682 proc_t * hold_proc_ptr;
4683 symbolS *sym;
4684 char *buf;
4685 char *bufend;
4686 unsigned long offset;
4687
4688 /* Make sure we have a file. */
4689 if (first_file == (efdr_t *) NULL)
4690 add_file ((const char *) NULL, 0, 1);
4691
4692 /* Handle any top level tags. */
4693 for (ptag = top_tag_head->first_tag;
4694 ptag != (tag_t *) NULL;
4695 ptag = ptag_next)
4696 {
4697 if (ptag->forward_ref != (forward_t *) NULL)
4698 add_unknown_tag (ptag);
4699
4700 ptag_next = ptag->same_block;
4701 ptag->hash_ptr->tag_ptr = ptag->same_name;
4702 free_tag (ptag);
4703 }
4704
4705 free_thead (top_tag_head);
4706
4707 /* Look through the symbols. Add debugging information for each
4708 symbol that has not already received it. */
4709 hold_file_ptr = cur_file_ptr;
4710 hold_proc_ptr = cur_proc_ptr;
4711 cur_proc_ptr = (proc_t *) NULL;
4712 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4713 {
4714 if (sym->ecoff_symbol != NULL
4715 || sym->ecoff_file == (efdr_t *) NULL
4716 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4717 continue;
4718
4719 cur_file_ptr = sym->ecoff_file;
4720 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4721 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4722 }
4723 cur_proc_ptr = hold_proc_ptr;
4724 cur_file_ptr = hold_file_ptr;
4725
4726 /* Output an ending symbol for all the files. We have to do this
4727 here for the last file, so we may as well do it for all of the
4728 files. */
4729 end_warning = 0;
4730 for (fil_ptr = first_file;
4731 fil_ptr != (efdr_t *) NULL;
4732 fil_ptr = fil_ptr->next_file)
4733 {
4734 cur_file_ptr = fil_ptr;
4735 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4736 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4737 {
4738 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4739 if (! end_warning && ! cur_file_ptr->fake)
4740 {
4741 as_warn (_("Missing .end or .bend at end of file"));
4742 end_warning = 1;
4743 }
4744 }
4745 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4746 (void) add_ecoff_symbol ((const char *) NULL,
4747 st_End, sc_Text,
4748 (symbolS *) NULL,
4749 (bfd_vma) 0,
4750 (symint_t) 0,
4751 (symint_t) 0);
4752 }
4753
4754 /* Build the symbolic information. */
4755 offset = 0;
4756 buf = xmalloc (PAGE_SIZE);
4757 bufend = buf + PAGE_SIZE;
4758
4759 /* Build the line number information. */
4760 hdr->cbLineOffset = offset;
4761 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4762 &hdr->ilineMax);
4763 hdr->cbLine = offset - hdr->cbLineOffset;
4764
4765 /* We don't use dense numbers at all. */
4766 hdr->idnMax = 0;
4767 hdr->cbDnOffset = 0;
4768
4769 /* We can't build the PDR table until we have built the symbols,
4770 because a PDR contains a symbol index. However, we set aside
4771 space at this point. */
4772 hdr->ipdMax = proc_cnt;
4773 hdr->cbPdOffset = offset;
4774 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4775 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4776 proc_cnt * external_pdr_size);
4777 offset += proc_cnt * external_pdr_size;
4778
4779 /* Build the local symbols. */
4780 hdr->cbSymOffset = offset;
4781 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4782 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4783
4784 /* Building the symbols initializes the symbol index in the PDR's.
4785 Now we can swap out the PDR's. */
4786 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4787
4788 /* We don't use optimization symbols. */
4789 hdr->ioptMax = 0;
4790 hdr->cbOptOffset = 0;
4791
4792 /* Swap out the auxiliary type information. */
4793 hdr->cbAuxOffset = offset;
4794 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4795 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4796
4797 /* Copy out the local strings. */
4798 hdr->cbSsOffset = offset;
4799 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4800 hdr->issMax = offset - hdr->cbSsOffset;
4801
4802 /* We don't use relative file descriptors. */
4803 hdr->crfd = 0;
4804 hdr->cbRfdOffset = 0;
4805
4806 /* Swap out the file descriptors. */
4807 hdr->cbFdOffset = offset;
4808 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4809 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4810
4811 /* Set up the external symbols, which are handled by the BFD back
4812 end. */
4813 hdr->issExtMax = 0;
4814 hdr->cbSsExtOffset = 0;
4815 hdr->iextMax = 0;
4816 hdr->cbExtOffset = 0;
4817 ecoff_setup_ext ();
4818
4819 know ((offset & (backend->debug_align - 1)) == 0);
4820
4821 /* FIXME: This value should be determined from the .verstamp directive,
4822 with reasonable defaults in config files. */
4823 #ifdef TC_ALPHA
4824 hdr->vstamp = 0x030b;
4825 #else
4826 hdr->vstamp = 0x020b;
4827 #endif
4828
4829 *bufp = buf;
4830 return offset;
4831 }
4832 \f
4833 /* Allocate a cluster of pages. */
4834
4835 #ifndef MALLOC_CHECK
4836
4837 static page_type *
4838 allocate_cluster (npages)
4839 unsigned long npages;
4840 {
4841 register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4842
4843 #ifdef ECOFF_DEBUG
4844 if (debug > 3)
4845 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4846 #endif
4847
4848 memset (value, 0, npages * PAGE_USIZE);
4849
4850 return value;
4851 }
4852
4853
4854 static page_type *cluster_ptr = NULL;
4855 static unsigned long pages_left = 0;
4856
4857 #endif /* MALLOC_CHECK */
4858
4859 /* Allocate one page (which is initialized to 0). */
4860
4861 static page_type *
4862 allocate_page ()
4863 {
4864 #ifndef MALLOC_CHECK
4865
4866 if (pages_left == 0)
4867 {
4868 pages_left = MAX_CLUSTER_PAGES;
4869 cluster_ptr = allocate_cluster (pages_left);
4870 }
4871
4872 pages_left--;
4873 return cluster_ptr++;
4874
4875 #else /* MALLOC_CHECK */
4876
4877 page_type *ptr;
4878
4879 ptr = xmalloc (PAGE_USIZE);
4880 memset (ptr, 0, PAGE_USIZE);
4881 return ptr;
4882
4883 #endif /* MALLOC_CHECK */
4884 }
4885 \f
4886 /* Allocate scoping information. */
4887
4888 static scope_t *
4889 allocate_scope ()
4890 {
4891 register scope_t *ptr;
4892 static scope_t initial_scope;
4893
4894 #ifndef MALLOC_CHECK
4895
4896 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4897 if (ptr != (scope_t *) NULL)
4898 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4899 else
4900 {
4901 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4902 register page_type *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4903
4904 if (unallocated == 0)
4905 {
4906 unallocated = PAGE_SIZE / sizeof (scope_t);
4907 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4908 alloc_counts[(int)alloc_type_scope].total_pages++;
4909 }
4910
4911 ptr = &cur_page->scope[--unallocated];
4912 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4913 }
4914
4915 #else
4916
4917 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4918
4919 #endif
4920
4921 alloc_counts[(int)alloc_type_scope].total_alloc++;
4922 *ptr = initial_scope;
4923 return ptr;
4924 }
4925
4926 /* Free scoping information. */
4927
4928 static void
4929 free_scope (ptr)
4930 scope_t *ptr;
4931 {
4932 alloc_counts[(int)alloc_type_scope].total_free++;
4933
4934 #ifndef MALLOC_CHECK
4935 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4936 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4937 #else
4938 free ((PTR) ptr);
4939 #endif
4940 }
4941 \f
4942 /* Allocate links for pages in a virtual array. */
4943
4944 static vlinks_t *
4945 allocate_vlinks ()
4946 {
4947 register vlinks_t *ptr;
4948 static vlinks_t initial_vlinks;
4949
4950 #ifndef MALLOC_CHECK
4951
4952 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4953 register page_type *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4954
4955 if (unallocated == 0)
4956 {
4957 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4958 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4959 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4960 }
4961
4962 ptr = &cur_page->vlinks[--unallocated];
4963 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4964
4965 #else
4966
4967 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4968
4969 #endif
4970
4971 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4972 *ptr = initial_vlinks;
4973 return ptr;
4974 }
4975 \f
4976 /* Allocate string hash buckets. */
4977
4978 static shash_t *
4979 allocate_shash ()
4980 {
4981 register shash_t *ptr;
4982 static shash_t initial_shash;
4983
4984 #ifndef MALLOC_CHECK
4985
4986 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4987 register page_type *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4988
4989 if (unallocated == 0)
4990 {
4991 unallocated = PAGE_SIZE / sizeof (shash_t);
4992 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4993 alloc_counts[(int)alloc_type_shash].total_pages++;
4994 }
4995
4996 ptr = &cur_page->shash[--unallocated];
4997 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4998
4999 #else
5000
5001 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5002
5003 #endif
5004
5005 alloc_counts[(int)alloc_type_shash].total_alloc++;
5006 *ptr = initial_shash;
5007 return ptr;
5008 }
5009 \f
5010 /* Allocate type hash buckets. */
5011
5012 static thash_t *
5013 allocate_thash ()
5014 {
5015 register thash_t *ptr;
5016 static thash_t initial_thash;
5017
5018 #ifndef MALLOC_CHECK
5019
5020 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
5021 register page_type *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
5022
5023 if (unallocated == 0)
5024 {
5025 unallocated = PAGE_SIZE / sizeof (thash_t);
5026 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
5027 alloc_counts[(int)alloc_type_thash].total_pages++;
5028 }
5029
5030 ptr = &cur_page->thash[--unallocated];
5031 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
5032
5033 #else
5034
5035 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5036
5037 #endif
5038
5039 alloc_counts[(int)alloc_type_thash].total_alloc++;
5040 *ptr = initial_thash;
5041 return ptr;
5042 }
5043 \f
5044 /* Allocate structure, union, or enum tag information. */
5045
5046 static tag_t *
5047 allocate_tag ()
5048 {
5049 register tag_t *ptr;
5050 static tag_t initial_tag;
5051
5052 #ifndef MALLOC_CHECK
5053
5054 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5055 if (ptr != (tag_t *) NULL)
5056 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
5057 else
5058 {
5059 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
5060 register page_type *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
5061
5062 if (unallocated == 0)
5063 {
5064 unallocated = PAGE_SIZE / sizeof (tag_t);
5065 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
5066 alloc_counts[(int)alloc_type_tag].total_pages++;
5067 }
5068
5069 ptr = &cur_page->tag[--unallocated];
5070 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
5071 }
5072
5073 #else
5074
5075 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5076
5077 #endif
5078
5079 alloc_counts[(int)alloc_type_tag].total_alloc++;
5080 *ptr = initial_tag;
5081 return ptr;
5082 }
5083
5084 /* Free scoping information. */
5085
5086 static void
5087 free_tag (ptr)
5088 tag_t *ptr;
5089 {
5090 alloc_counts[(int)alloc_type_tag].total_free++;
5091
5092 #ifndef MALLOC_CHECK
5093 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5094 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
5095 #else
5096 free ((PTR_T) ptr);
5097 #endif
5098 }
5099 \f
5100 /* Allocate forward reference to a yet unknown tag. */
5101
5102 static forward_t *
5103 allocate_forward ()
5104 {
5105 register forward_t *ptr;
5106 static forward_t initial_forward;
5107
5108 #ifndef MALLOC_CHECK
5109
5110 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
5111 register page_type *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
5112
5113 if (unallocated == 0)
5114 {
5115 unallocated = PAGE_SIZE / sizeof (forward_t);
5116 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
5117 alloc_counts[(int)alloc_type_forward].total_pages++;
5118 }
5119
5120 ptr = &cur_page->forward[--unallocated];
5121 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
5122
5123 #else
5124
5125 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5126
5127 #endif
5128
5129 alloc_counts[(int)alloc_type_forward].total_alloc++;
5130 *ptr = initial_forward;
5131 return ptr;
5132 }
5133 \f
5134 /* Allocate head of type hash list. */
5135
5136 static thead_t *
5137 allocate_thead ()
5138 {
5139 register thead_t *ptr;
5140 static thead_t initial_thead;
5141
5142 #ifndef MALLOC_CHECK
5143
5144 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5145 if (ptr != (thead_t *) NULL)
5146 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5147 else
5148 {
5149 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
5150 register page_type *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
5151
5152 if (unallocated == 0)
5153 {
5154 unallocated = PAGE_SIZE / sizeof (thead_t);
5155 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
5156 alloc_counts[(int)alloc_type_thead].total_pages++;
5157 }
5158
5159 ptr = &cur_page->thead[--unallocated];
5160 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
5161 }
5162
5163 #else
5164
5165 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5166
5167 #endif
5168
5169 alloc_counts[(int)alloc_type_thead].total_alloc++;
5170 *ptr = initial_thead;
5171 return ptr;
5172 }
5173
5174 /* Free scoping information. */
5175
5176 static void
5177 free_thead (ptr)
5178 thead_t *ptr;
5179 {
5180 alloc_counts[(int)alloc_type_thead].total_free++;
5181
5182 #ifndef MALLOC_CHECK
5183 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5184 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5185 #else
5186 free ((PTR_T) ptr);
5187 #endif
5188 }
5189 \f
5190 static lineno_list_t *
5191 allocate_lineno_list ()
5192 {
5193 register lineno_list_t *ptr;
5194 static lineno_list_t initial_lineno_list;
5195
5196 #ifndef MALLOC_CHECK
5197
5198 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
5199 register page_type *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
5200
5201 if (unallocated == 0)
5202 {
5203 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5204 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5205 alloc_counts[(int)alloc_type_lineno].total_pages++;
5206 }
5207
5208 ptr = &cur_page->lineno[--unallocated];
5209 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5210
5211 #else
5212
5213 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5214
5215 #endif
5216
5217 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5218 *ptr = initial_lineno_list;
5219 return ptr;
5220 }
5221
5222 void
5223 ecoff_set_gp_prolog_size (sz)
5224 int sz;
5225 {
5226 if (cur_proc_ptr == 0)
5227 return;
5228
5229 cur_proc_ptr->pdr.gp_prologue = sz;
5230 if (cur_proc_ptr->pdr.gp_prologue != sz)
5231 {
5232 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5233 cur_proc_ptr->pdr.gp_prologue = 0;
5234 }
5235
5236 cur_proc_ptr->pdr.gp_used = 1;
5237 }
5238
5239 int
5240 ecoff_no_current_file ()
5241 {
5242 return cur_file_ptr == (efdr_t *) NULL;
5243 }
5244
5245 void
5246 ecoff_generate_asm_lineno (filename, lineno)
5247 const char *filename;
5248 int lineno;
5249 {
5250 lineno_list_t *list;
5251
5252 if (current_stabs_filename == (char *)NULL
5253 || strcmp (current_stabs_filename, filename))
5254 add_file (filename, 0, 1);
5255
5256 list = allocate_lineno_list ();
5257
5258 list->next = (lineno_list_t *) NULL;
5259 list->file = cur_file_ptr;
5260 list->proc = cur_proc_ptr;
5261 list->frag = frag_now;
5262 list->paddr = frag_now_fix ();
5263 list->lineno = lineno;
5264
5265 /* We don't want to merge files which have line numbers. */
5266 cur_file_ptr->fdr.fMerge = 0;
5267
5268 /* A .loc directive will sometimes appear before a .ent directive,
5269 which means that cur_proc_ptr will be NULL here. Arrange to
5270 patch this up. */
5271 if (cur_proc_ptr == (proc_t *) NULL)
5272 {
5273 lineno_list_t **pl;
5274
5275 pl = &noproc_lineno;
5276 while (*pl != (lineno_list_t *) NULL)
5277 pl = &(*pl)->next;
5278 *pl = list;
5279 }
5280 else
5281 {
5282 last_lineno = list;
5283 *last_lineno_ptr = list;
5284 last_lineno_ptr = &list->next;
5285 }
5286 }
5287
5288 #endif /* ECOFF_DEBUGGING */
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