?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ia64-hpux patches from Steve Ellcey.
[binutils.git] / gas / ecoff.c
blob9a626faa25f6c483eba813a9923bf9997c51035c
1 /* ECOFF debugging support.
2 Copyright (C) 1993, 94, 95, 96, 97, 98, 1999 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 #include "ecoff.h"
32
33 #ifdef ECOFF_DEBUGGING
34
35 #include "coff/internal.h"
36 #include "coff/symconst.h"
37 #include "aout/stab_gnu.h"
38
39 #include <ctype.h>
40
41 /* Why isn't this in coff/sym.h? */
42 #define ST_RFDESCAPE 0xfff
43
44 /* This file constructs the information used by the ECOFF debugging
45 format. It just builds a large block of data.
46
47 We support both ECOFF style debugging and stabs debugging (the
48 stabs symbols are encapsulated in ECOFF symbols). This should let
49 us handle anything the compiler might throw at us. */
50
51 /* Here is a brief description of the MIPS ECOFF symbol table, by
52 Michael Meissner. The MIPS symbol table has the following pieces:
53
54 Symbolic Header
55 |
56 +-- Auxiliary Symbols
57 |
58 +-- Dense number table
59 |
60 +-- Optimizer Symbols
61 |
62 +-- External Strings
63 |
64 +-- External Symbols
65 |
66 +-- Relative file descriptors
67 |
68 +-- File table
69 |
70 +-- Procedure table
71 |
72 +-- Line number table
73 |
74 +-- Local Strings
75 |
76 +-- Local Symbols
77
78 The symbolic header points to each of the other tables, and also
79 contains the number of entries. It also contains a magic number
80 and MIPS compiler version number, such as 2.0.
81
82 The auxiliary table is a series of 32 bit integers, that are
83 referenced as needed from the local symbol table. Unlike standard
84 COFF, the aux. information does not follow the symbol that uses
85 it, but rather is a separate table. In theory, this would allow
86 the MIPS compilers to collapse duplicate aux. entries, but I've not
87 noticed this happening with the 1.31 compiler suite. The different
88 types of aux. entries are:
89
90 1) dnLow: Low bound on array dimension.
91
92 2) dnHigh: High bound on array dimension.
93
94 3) isym: Index to the local symbol which is the start of the
95 function for the end of function first aux. entry.
96
97 4) width: Width of structures and bitfields.
98
99 5) count: Count of ranges for variant part.
100
101 6) rndx: A relative index into the symbol table. The relative
102 index field has two parts: rfd which is a pointer into the
103 relative file index table or ST_RFDESCAPE which says the next
104 aux. entry is the file number, and index: which is the pointer
105 into the local symbol within a given file table. This is for
106 things like references to types defined in another file.
107
108 7) Type information: This is like the COFF type bits, except it
109 is 32 bits instead of 16; they still have room to add new
110 basic types; and they can handle more than 6 levels of array,
111 pointer, function, etc. Each type information field contains
112 the following structure members:
113
114 a) fBitfield: a bit that says this is a bitfield, and the
115 size in bits follows as the next aux. entry.
116
117 b) continued: a bit that says the next aux. entry is a
118 continuation of the current type information (in case
119 there are more than 6 levels of array/ptr/function).
120
121 c) bt: an integer containing the base type before adding
122 array, pointer, function, etc. qualifiers. The
123 current base types that I have documentation for are:
124
125 btNil -- undefined
126 btAdr -- address - integer same size as ptr
127 btChar -- character
128 btUChar -- unsigned character
129 btShort -- short
130 btUShort -- unsigned short
131 btInt -- int
132 btUInt -- unsigned int
133 btLong -- long
134 btULong -- unsigned long
135 btFloat -- float (real)
136 btDouble -- Double (real)
137 btStruct -- Structure (Record)
138 btUnion -- Union (variant)
139 btEnum -- Enumerated
140 btTypedef -- defined via a typedef isymRef
141 btRange -- subrange of int
142 btSet -- pascal sets
143 btComplex -- fortran complex
144 btDComplex -- fortran double complex
145 btIndirect -- forward or unnamed typedef
146 btFixedDec -- Fixed Decimal
147 btFloatDec -- Float Decimal
148 btString -- Varying Length Character String
149 btBit -- Aligned Bit String
150 btPicture -- Picture
151 btVoid -- Void (MIPS cc revision >= 2.00)
152
153 d) tq0 - tq5: type qualifier fields as needed. The
154 current type qualifier fields I have documentation for
155 are:
156
157 tqNil -- no more qualifiers
158 tqPtr -- pointer
159 tqProc -- procedure
160 tqArray -- array
161 tqFar -- 8086 far pointers
162 tqVol -- volatile
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 For the following program:
259
260 #include <stdio.h>
261
262 main(){
263 printf("Hello World!\n");
264 return 0;
265 }
266
267 Mips-tdump produces the following information:
268
269 Global file header:
270 magic number 0x162
271 # sections 2
272 timestamp 645311799, Wed Jun 13 17:16:39 1990
273 symbolic header offset 284
274 symbolic header size 96
275 optional header 56
276 flags 0x0
277
278 Symbolic header, magic number = 0x7009, vstamp = 1.31:
279
280 Info Offset Number Bytes
281 ==== ====== ====== =====
282
283 Line numbers 380 4 4 [13]
284 Dense numbers 0 0 0
285 Procedures Tables 384 1 52
286 Local Symbols 436 16 192
287 Optimization Symbols 0 0 0
288 Auxiliary Symbols 628 39 156
289 Local Strings 784 80 80
290 External Strings 864 144 144
291 File Tables 1008 2 144
292 Relative Files 0 0 0
293 External Symbols 1152 20 320
294
295 File #0, "hello2.c"
296
297 Name index = 1 Readin = No
298 Merge = No Endian = LITTLE
299 Debug level = G2 Language = C
300 Adr = 0x00000000
301
302 Info Start Number Size Offset
303 ==== ===== ====== ==== ======
304 Local strings 0 15 15 784
305 Local symbols 0 6 72 436
306 Line numbers 0 13 13 380
307 Optimization symbols 0 0 0 0
308 Procedures 0 1 52 384
309 Auxiliary symbols 0 14 56 628
310 Relative Files 0 0 0 0
311
312 There are 6 local symbols, starting at 436
313
314 Symbol# 0: "hello2.c"
315 End+1 symbol = 6
316 String index = 1
317 Storage class = Text Index = 6
318 Symbol type = File Value = 0
319
320 Symbol# 1: "main"
321 End+1 symbol = 5
322 Type = int
323 String index = 10
324 Storage class = Text Index = 12
325 Symbol type = Proc Value = 0
326
327 Symbol# 2: ""
328 End+1 symbol = 4
329 String index = 0
330 Storage class = Text Index = 4
331 Symbol type = Block Value = 8
332
333 Symbol# 3: ""
334 First symbol = 2
335 String index = 0
336 Storage class = Text Index = 2
337 Symbol type = End Value = 28
338
339 Symbol# 4: "main"
340 First symbol = 1
341 String index = 10
342 Storage class = Text Index = 1
343 Symbol type = End Value = 52
344
345 Symbol# 5: "hello2.c"
346 First symbol = 0
347 String index = 1
348 Storage class = Text Index = 0
349 Symbol type = End Value = 0
350
351 There are 14 auxiliary table entries, starting at 628.
352
353 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
354 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
355 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
356 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
357 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
358 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
359 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
360 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
361 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
362 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
363 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
364 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
365 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
366 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
367
368 There are 1 procedure descriptor entries, starting at 0.
369
370 Procedure descriptor 0:
371 Name index = 10 Name = "main"
372 .mask 0x80000000,-4 .fmask 0x00000000,0
373 .frame $29,24,$31
374 Opt. start = -1 Symbols start = 1
375 First line # = 3 Last line # = 6
376 Line Offset = 0 Address = 0x00000000
377
378 There are 4 bytes holding line numbers, starting at 380.
379 Line 3, delta 0, count 2
380 Line 4, delta 1, count 3
381 Line 5, delta 1, count 2
382 Line 6, delta 1, count 6
383
384 File #1, "/usr/include/stdio.h"
385
386 Name index = 1 Readin = No
387 Merge = Yes Endian = LITTLE
388 Debug level = G2 Language = C
389 Adr = 0x00000000
390
391 Info Start Number Size Offset
392 ==== ===== ====== ==== ======
393 Local strings 15 65 65 799
394 Local symbols 6 10 120 508
395 Line numbers 0 0 0 380
396 Optimization symbols 0 0 0 0
397 Procedures 1 0 0 436
398 Auxiliary symbols 14 25 100 684
399 Relative Files 0 0 0 0
400
401 There are 10 local symbols, starting at 442
402
403 Symbol# 0: "/usr/include/stdio.h"
404 End+1 symbol = 10
405 String index = 1
406 Storage class = Text Index = 10
407 Symbol type = File Value = 0
408
409 Symbol# 1: "_iobuf"
410 End+1 symbol = 9
411 String index = 22
412 Storage class = Info Index = 9
413 Symbol type = Block Value = 20
414
415 Symbol# 2: "_cnt"
416 Type = int
417 String index = 29
418 Storage class = Info Index = 4
419 Symbol type = Member Value = 0
420
421 Symbol# 3: "_ptr"
422 Type = ptr to char
423 String index = 34
424 Storage class = Info Index = 15
425 Symbol type = Member Value = 32
426
427 Symbol# 4: "_base"
428 Type = ptr to char
429 String index = 39
430 Storage class = Info Index = 16
431 Symbol type = Member Value = 64
432
433 Symbol# 5: "_bufsiz"
434 Type = int
435 String index = 45
436 Storage class = Info Index = 4
437 Symbol type = Member Value = 96
438
439 Symbol# 6: "_flag"
440 Type = short
441 String index = 53
442 Storage class = Info Index = 3
443 Symbol type = Member Value = 128
444
445 Symbol# 7: "_file"
446 Type = char
447 String index = 59
448 Storage class = Info Index = 2
449 Symbol type = Member Value = 144
450
451 Symbol# 8: ""
452 First symbol = 1
453 String index = 0
454 Storage class = Info Index = 1
455 Symbol type = End Value = 0
456
457 Symbol# 9: "/usr/include/stdio.h"
458 First symbol = 0
459 String index = 1
460 Storage class = Text Index = 0
461 Symbol type = End Value = 0
462
463 There are 25 auxiliary table entries, starting at 642.
464
465 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
466 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
467 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
468 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
469 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
470 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
471 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
472 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
473 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
474 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
475 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
476 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
477 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
478 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490
491 There are 0 procedure descriptor entries, starting at 1.
492
493 There are 20 external symbols, starting at 1152
494
495 Symbol# 0: "_iob"
496 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
497 String index = 0 Ifd = 1
498 Storage class = Nil Index = 17
499 Symbol type = Global Value = 60
500
501 Symbol# 1: "fopen"
502 String index = 5 Ifd = 1
503 Storage class = Nil Index = 1048575
504 Symbol type = Proc Value = 0
505
506 Symbol# 2: "fdopen"
507 String index = 11 Ifd = 1
508 Storage class = Nil Index = 1048575
509 Symbol type = Proc Value = 0
510
511 Symbol# 3: "freopen"
512 String index = 18 Ifd = 1
513 Storage class = Nil Index = 1048575
514 Symbol type = Proc Value = 0
515
516 Symbol# 4: "popen"
517 String index = 26 Ifd = 1
518 Storage class = Nil Index = 1048575
519 Symbol type = Proc Value = 0
520
521 Symbol# 5: "tmpfile"
522 String index = 32 Ifd = 1
523 Storage class = Nil Index = 1048575
524 Symbol type = Proc Value = 0
525
526 Symbol# 6: "ftell"
527 String index = 40 Ifd = 1
528 Storage class = Nil Index = 1048575
529 Symbol type = Proc Value = 0
530
531 Symbol# 7: "rewind"
532 String index = 46 Ifd = 1
533 Storage class = Nil Index = 1048575
534 Symbol type = Proc Value = 0
535
536 Symbol# 8: "setbuf"
537 String index = 53 Ifd = 1
538 Storage class = Nil Index = 1048575
539 Symbol type = Proc Value = 0
540
541 Symbol# 9: "setbuffer"
542 String index = 60 Ifd = 1
543 Storage class = Nil Index = 1048575
544 Symbol type = Proc Value = 0
545
546 Symbol# 10: "setlinebuf"
547 String index = 70 Ifd = 1
548 Storage class = Nil Index = 1048575
549 Symbol type = Proc Value = 0
550
551 Symbol# 11: "fgets"
552 String index = 81 Ifd = 1
553 Storage class = Nil Index = 1048575
554 Symbol type = Proc Value = 0
555
556 Symbol# 12: "gets"
557 String index = 87 Ifd = 1
558 Storage class = Nil Index = 1048575
559 Symbol type = Proc Value = 0
560
561 Symbol# 13: "ctermid"
562 String index = 92 Ifd = 1
563 Storage class = Nil Index = 1048575
564 Symbol type = Proc Value = 0
565
566 Symbol# 14: "cuserid"
567 String index = 100 Ifd = 1
568 Storage class = Nil Index = 1048575
569 Symbol type = Proc Value = 0
570
571 Symbol# 15: "tempnam"
572 String index = 108 Ifd = 1
573 Storage class = Nil Index = 1048575
574 Symbol type = Proc Value = 0
575
576 Symbol# 16: "tmpnam"
577 String index = 116 Ifd = 1
578 Storage class = Nil Index = 1048575
579 Symbol type = Proc Value = 0
580
581 Symbol# 17: "sprintf"
582 String index = 123 Ifd = 1
583 Storage class = Nil Index = 1048575
584 Symbol type = Proc Value = 0
585
586 Symbol# 18: "main"
587 Type = int
588 String index = 131 Ifd = 0
589 Storage class = Text Index = 1
590 Symbol type = Proc Value = 0
591
592 Symbol# 19: "printf"
593 String index = 136 Ifd = 0
594 Storage class = Undefined Index = 1048575
595 Symbol type = Proc Value = 0
596
597 The following auxiliary table entries were unused:
598
599 #0 0 0x00000000 void
600 #2 8 0x00000008 char
601 #3 16 0x00000010 short
602 #4 24 0x00000018 int
603 #5 32 0x00000020 long
604 #6 40 0x00000028 float
605 #7 44 0x0000002c double
606 #8 12 0x0000000c unsigned char
607 #9 20 0x00000014 unsigned short
608 #10 28 0x0000001c unsigned int
609 #11 36 0x00000024 unsigned long
610 #14 0 0x00000000 void
611 #15 24 0x00000018 int
612 #19 32 0x00000020 long
613 #20 40 0x00000028 float
614 #21 44 0x0000002c double
615 #22 12 0x0000000c unsigned char
616 #23 20 0x00000014 unsigned short
617 #24 28 0x0000001c unsigned int
618 #25 36 0x00000024 unsigned long
619 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
620 */
621 \f
622 /* Redefinition of of storage classes as an enumeration for better
623 debugging. */
624
625 typedef enum sc {
626 sc_Nil = scNil, /* no storage class */
627 sc_Text = scText, /* text symbol */
628 sc_Data = scData, /* initialized data symbol */
629 sc_Bss = scBss, /* un-initialized data symbol */
630 sc_Register = scRegister, /* value of symbol is register number */
631 sc_Abs = scAbs, /* value of symbol is absolute */
632 sc_Undefined = scUndefined, /* who knows? */
633 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
634 sc_Bits = scBits, /* this is a bit field */
635 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
636 sc_RegImage = scRegImage, /* register value saved on stack */
637 sc_Info = scInfo, /* symbol contains debugger information */
638 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
639 sc_SData = scSData, /* load time only small data */
640 sc_SBss = scSBss, /* load time only small common */
641 sc_RData = scRData, /* load time only read only data */
642 sc_Var = scVar, /* Var parameter (fortran,pascal) */
643 sc_Common = scCommon, /* common variable */
644 sc_SCommon = scSCommon, /* small common */
645 sc_VarRegister = scVarRegister, /* Var parameter in a register */
646 sc_Variant = scVariant, /* Variant record */
647 sc_SUndefined = scSUndefined, /* small undefined(external) data */
648 sc_Init = scInit, /* .init section symbol */
649 sc_Max = scMax /* Max storage class+1 */
650 } sc_t;
651
652 /* Redefinition of symbol type. */
653
654 typedef enum st {
655 st_Nil = stNil, /* Nuthin' special */
656 st_Global = stGlobal, /* external symbol */
657 st_Static = stStatic, /* static */
658 st_Param = stParam, /* procedure argument */
659 st_Local = stLocal, /* local variable */
660 st_Label = stLabel, /* label */
661 st_Proc = stProc, /* " " Procedure */
662 st_Block = stBlock, /* beginning of block */
663 st_End = stEnd, /* end (of anything) */
664 st_Member = stMember, /* member (of anything - struct/union/enum */
665 st_Typedef = stTypedef, /* type definition */
666 st_File = stFile, /* file name */
667 st_RegReloc = stRegReloc, /* register relocation */
668 st_Forward = stForward, /* forwarding address */
669 st_StaticProc = stStaticProc, /* load time only static procs */
670 st_Constant = stConstant, /* const */
671 st_Str = stStr, /* string */
672 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
673 st_Expr = stExpr, /* 2+2 vs. 4 */
674 st_Type = stType, /* post-coercion SER */
675 st_Max = stMax /* max type+1 */
676 } st_t;
677
678 /* Redefinition of type qualifiers. */
679
680 typedef enum tq {
681 tq_Nil = tqNil, /* bt is what you see */
682 tq_Ptr = tqPtr, /* pointer */
683 tq_Proc = tqProc, /* procedure */
684 tq_Array = tqArray, /* duh */
685 tq_Far = tqFar, /* longer addressing - 8086/8 land */
686 tq_Vol = tqVol, /* volatile */
687 tq_Max = tqMax /* Max type qualifier+1 */
688 } tq_t;
689
690 /* Redefinition of basic types. */
691
692 typedef enum bt {
693 bt_Nil = btNil, /* undefined */
694 bt_Adr = btAdr, /* address - integer same size as pointer */
695 bt_Char = btChar, /* character */
696 bt_UChar = btUChar, /* unsigned character */
697 bt_Short = btShort, /* short */
698 bt_UShort = btUShort, /* unsigned short */
699 bt_Int = btInt, /* int */
700 bt_UInt = btUInt, /* unsigned int */
701 bt_Long = btLong, /* long */
702 bt_ULong = btULong, /* unsigned long */
703 bt_Float = btFloat, /* float (real) */
704 bt_Double = btDouble, /* Double (real) */
705 bt_Struct = btStruct, /* Structure (Record) */
706 bt_Union = btUnion, /* Union (variant) */
707 bt_Enum = btEnum, /* Enumerated */
708 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
709 bt_Range = btRange, /* subrange of int */
710 bt_Set = btSet, /* pascal sets */
711 bt_Complex = btComplex, /* fortran complex */
712 bt_DComplex = btDComplex, /* fortran double complex */
713 bt_Indirect = btIndirect, /* forward or unnamed typedef */
714 bt_FixedDec = btFixedDec, /* Fixed Decimal */
715 bt_FloatDec = btFloatDec, /* Float Decimal */
716 bt_String = btString, /* Varying Length Character String */
717 bt_Bit = btBit, /* Aligned Bit String */
718 bt_Picture = btPicture, /* Picture */
719 bt_Void = btVoid, /* Void */
720 bt_Max = btMax /* Max basic type+1 */
721 } bt_t;
722
723 #define N_TQ itqMax
724
725 /* States for whether to hash type or not. */
726 typedef enum hash_state {
727 hash_no = 0, /* Don't hash type */
728 hash_yes = 1, /* OK to hash type, or use previous hash */
729 hash_record = 2 /* OK to record hash, but don't use prev. */
730 } hash_state_t;
731
732 /* Types of different sized allocation requests. */
733 enum alloc_type {
734 alloc_type_none, /* dummy value */
735 alloc_type_scope, /* nested scopes linked list */
736 alloc_type_vlinks, /* glue linking pages in varray */
737 alloc_type_shash, /* string hash element */
738 alloc_type_thash, /* type hash element */
739 alloc_type_tag, /* struct/union/tag element */
740 alloc_type_forward, /* element to hold unknown tag */
741 alloc_type_thead, /* head of type hash list */
742 alloc_type_varray, /* general varray allocation */
743 alloc_type_lineno, /* line number list */
744 alloc_type_last /* last+1 element for array bounds */
745 };
746
747 /* Types of auxiliary type information. */
748 enum aux_type {
749 aux_tir, /* TIR type information */
750 aux_rndx, /* relative index into symbol table */
751 aux_dnLow, /* low dimension */
752 aux_dnHigh, /* high dimension */
753 aux_isym, /* symbol table index (end of proc) */
754 aux_iss, /* index into string space (not used) */
755 aux_width, /* width for non-default sized struc fields */
756 aux_count /* count of ranges for variant arm */
757 };
758 \f
759 /* Structures to provide n-number of virtual arrays, each of which can
760 grow linearly, and which are written in the object file as
761 sequential pages. On systems with a BSD malloc, the
762 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
763 malloc adds it's overhead, and rounds up to the next power of 2.
764 Pages are linked together via a linked list.
765
766 If PAGE_SIZE is > 4096, the string length in the shash_t structure
767 can't be represented (assuming there are strings > 4096 bytes). */
768
769 /* FIXME: Yes, there can be such strings while emitting C++ class debug
770 info. Templates are the offender here, the test case in question
771 having a mangled class name of
772
773 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
774 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
775
776 Repeat that a couple dozen times while listing the class members and
777 you've got strings over 4k. Hack around this for now by increasing
778 the page size. A proper solution would abandon this structure scheme
779 certainly for very large strings, and possibly entirely. */
780
781 #ifndef PAGE_SIZE
782 #define PAGE_SIZE (8*1024) /* size of varray pages */
783 #endif
784
785 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
786
787 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
788 #define MAX_CLUSTER_PAGES 63
789 #endif
790
791 /* Linked list connecting separate page allocations. */
792 typedef struct vlinks {
793 struct vlinks *prev; /* previous set of pages */
794 struct vlinks *next; /* next set of pages */
795 union page *datum; /* start of page */
796 unsigned long start_index; /* starting index # of page */
797 } vlinks_t;
798
799 /* Virtual array header. */
800 typedef struct varray {
801 vlinks_t *first; /* first page link */
802 vlinks_t *last; /* last page link */
803 unsigned long num_allocated; /* # objects allocated */
804 unsigned short object_size; /* size in bytes of each object */
805 unsigned short objects_per_page; /* # objects that can fit on a page */
806 unsigned short objects_last_page; /* # objects allocated on last page */
807 } varray_t;
808
809 #ifndef MALLOC_CHECK
810 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
811 #else
812 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
813 #endif
814
815 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
816 (vlinks_t *)0, /* first */ \
817 (vlinks_t *)0, /* last */ \
818 0, /* num_allocated */ \
819 sizeof (type), /* object_size */ \
820 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
821 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
822 }
823
824 /* Master type for indexes within the symbol table. */
825 typedef unsigned long symint_t;
826
827 /* Linked list support for nested scopes (file, block, structure, etc.). */
828 typedef struct scope {
829 struct scope *prev; /* previous scope level */
830 struct scope *free; /* free list pointer */
831 struct localsym *lsym; /* pointer to local symbol node */
832 st_t type; /* type of the node */
833 } scope_t;
834
835 /* For a local symbol we store a gas symbol as well as the debugging
836 information we generate. The gas symbol will be NULL if this is
837 only a debugging symbol. */
838 typedef struct localsym {
839 const char *name; /* symbol name */
840 symbolS *as_sym; /* symbol as seen by gas */
841 bfd_vma addend; /* addend to as_sym value */
842 struct efdr *file_ptr; /* file pointer */
843 struct ecoff_proc *proc_ptr; /* proc pointer */
844 struct localsym *begin_ptr; /* symbol at start of block */
845 struct ecoff_aux *index_ptr; /* index value to be filled in */
846 struct forward *forward_ref; /* forward references to this symbol */
847 long sym_index; /* final symbol index */
848 EXTR ecoff_sym; /* ECOFF debugging symbol */
849 } localsym_t;
850
851 /* For aux information we keep the type and the data. */
852 typedef struct ecoff_aux {
853 enum aux_type type; /* aux type */
854 AUXU data; /* aux data */
855 } aux_t;
856
857 /* For a procedure we store the gas symbol as well as the PDR
858 debugging information. */
859 typedef struct ecoff_proc {
860 localsym_t *sym; /* associated symbol */
861 PDR pdr; /* ECOFF debugging info */
862 } proc_t;
863
864 /* Number of proc_t structures allocated. */
865 static unsigned long proc_cnt;
866
867 /* Forward reference list for tags referenced, but not yet defined. */
868 typedef struct forward {
869 struct forward *next; /* next forward reference */
870 struct forward *free; /* free list pointer */
871 aux_t *ifd_ptr; /* pointer to store file index */
872 aux_t *index_ptr; /* pointer to store symbol index */
873 } forward_t;
874
875 /* Linked list support for tags. The first tag in the list is always
876 the current tag for that block. */
877 typedef struct tag {
878 struct tag *free; /* free list pointer */
879 struct shash *hash_ptr; /* pointer to the hash table head */
880 struct tag *same_name; /* tag with same name in outer scope */
881 struct tag *same_block; /* next tag defined in the same block. */
882 struct forward *forward_ref; /* list of forward references */
883 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
884 symint_t ifd; /* file # tag defined in */
885 localsym_t *sym; /* file's local symbols */
886 } tag_t;
887
888 /* Head of a block's linked list of tags. */
889 typedef struct thead {
890 struct thead *prev; /* previous block */
891 struct thead *free; /* free list pointer */
892 struct tag *first_tag; /* first tag in block defined */
893 } thead_t;
894
895 /* Union containing pointers to each the small structures which are freed up. */
896 typedef union small_free {
897 scope_t *f_scope; /* scope structure */
898 thead_t *f_thead; /* tag head structure */
899 tag_t *f_tag; /* tag element structure */
900 forward_t *f_forward; /* forward tag reference */
901 } small_free_t;
902
903 /* String hash table entry. */
904
905 typedef struct shash {
906 char *string; /* string we are hashing */
907 symint_t indx; /* index within string table */
908 EXTR *esym_ptr; /* global symbol pointer */
909 localsym_t *sym_ptr; /* local symbol pointer */
910 localsym_t *end_ptr; /* symbol pointer to end block */
911 tag_t *tag_ptr; /* tag pointer */
912 proc_t *proc_ptr; /* procedure descriptor pointer */
913 } shash_t;
914
915 /* Type hash table support. The size of the hash table must fit
916 within a page with the other extended file descriptor information.
917 Because unique types which are hashed are fewer in number than
918 strings, we use a smaller hash value. */
919
920 #define HASHBITS 30
921
922 #ifndef THASH_SIZE
923 #define THASH_SIZE 113
924 #endif
925
926 typedef struct thash {
927 struct thash *next; /* next hash value */
928 AUXU type; /* type we are hashing */
929 symint_t indx; /* index within string table */
930 } thash_t;
931
932 /* Extended file descriptor that contains all of the support necessary
933 to add things to each file separately. */
934 typedef struct efdr {
935 FDR fdr; /* File header to be written out */
936 FDR *orig_fdr; /* original file header */
937 char *name; /* filename */
938 int fake; /* whether this is faked .file */
939 symint_t void_type; /* aux. pointer to 'void' type */
940 symint_t int_type; /* aux. pointer to 'int' type */
941 scope_t *cur_scope; /* current nested scopes */
942 symint_t file_index; /* current file number */
943 int nested_scopes; /* # nested scopes */
944 varray_t strings; /* local strings */
945 varray_t symbols; /* local symbols */
946 varray_t procs; /* procedures */
947 varray_t aux_syms; /* auxiliary symbols */
948 struct efdr *next_file; /* next file descriptor */
949 /* string/type hash tables */
950 struct hash_control *str_hash; /* string hash table */
951 thash_t *thash_head[THASH_SIZE];
952 } efdr_t;
953
954 /* Pre-initialized extended file structure. */
955 static const efdr_t init_file = {
956 { /* FDR structure */
957 0, /* adr: memory address of beginning of file */
958 0, /* rss: file name (of source, if known) */
959 0, /* issBase: file's string space */
960 0, /* cbSs: number of bytes in the ss */
961 0, /* isymBase: beginning of symbols */
962 0, /* csym: count file's of symbols */
963 0, /* ilineBase: file's line symbols */
964 0, /* cline: count of file's line symbols */
965 0, /* ioptBase: file's optimization entries */
966 0, /* copt: count of file's optimization entries */
967 0, /* ipdFirst: start of procedures for this file */
968 0, /* cpd: count of procedures for this file */
969 0, /* iauxBase: file's auxiliary entries */
970 0, /* caux: count of file's auxiliary entries */
971 0, /* rfdBase: index into the file indirect table */
972 0, /* crfd: count file indirect entries */
973 langC, /* lang: language for this file */
974 1, /* fMerge: whether this file can be merged */
975 0, /* fReadin: true if read in (not just created) */
976 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
977 GLEVEL_2, /* glevel: level this file was compiled with */
978 0, /* reserved: reserved for future use */
979 0, /* cbLineOffset: byte offset from header for this file ln's */
980 0, /* cbLine: size of lines for this file */
981 },
982
983 (FDR *)0, /* orig_fdr: original file header pointer */
984 (char *)0, /* name: pointer to filename */
985 0, /* fake: whether this is a faked .file */
986 0, /* void_type: ptr to aux node for void type */
987 0, /* int_type: ptr to aux node for int type */
988 (scope_t *)0, /* cur_scope: current scope being processed */
989 0, /* file_index: current file # */
990 0, /* nested_scopes: # nested scopes */
991 INIT_VARRAY (char), /* strings: local string varray */
992 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
993 INIT_VARRAY (proc_t), /* procs: procedure varray */
994 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
995
996 (struct efdr *)0, /* next_file: next file structure */
997
998 (struct hash_control *)0, /* str_hash: string hash table */
999 { 0 }, /* thash_head: type hash table */
1000 };
1001
1002 static efdr_t *first_file; /* first file descriptor */
1003 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1004
1005 /* Line number information is kept in a list until the assembly is
1006 finished. */
1007 typedef struct lineno_list {
1008 struct lineno_list *next; /* next element in list */
1009 efdr_t *file; /* file this line is in */
1010 proc_t *proc; /* procedure this line is in */
1011 fragS *frag; /* fragment this line number is in */
1012 unsigned long paddr; /* offset within fragment */
1013 long lineno; /* actual line number */
1014 } lineno_list_t;
1015
1016 static lineno_list_t *first_lineno;
1017 static lineno_list_t *last_lineno;
1018 static lineno_list_t **last_lineno_ptr = &first_lineno;
1019
1020 /* Sometimes there will be some .loc statements before a .ent. We
1021 keep them in this list so that we can fill in the procedure pointer
1022 after we see the .ent. */
1023 static lineno_list_t *noproc_lineno;
1024
1025 /* Union of various things that are held in pages. */
1026 typedef union page {
1027 char byte [ PAGE_SIZE ];
1028 unsigned char ubyte [ PAGE_SIZE ];
1029 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1030 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1031 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1032 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1033 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1034 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1035 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1036 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1037 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1038 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1039 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1040 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1041 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1042 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1043 } page_type;
1044
1045 /* Structure holding allocation information for small sized structures. */
1046 typedef struct alloc_info {
1047 char *alloc_name; /* name of this allocation type (must be first) */
1048 page_type *cur_page; /* current page being allocated from */
1049 small_free_t free_list; /* current free list if any */
1050 int unallocated; /* number of elements unallocated on page */
1051 int total_alloc; /* total number of allocations */
1052 int total_free; /* total number of frees */
1053 int total_pages; /* total number of pages allocated */
1054 } alloc_info_t;
1055
1056 /* Type information collected together. */
1057 typedef struct type_info {
1058 bt_t basic_type; /* basic type */
1059 int orig_type; /* original COFF-based type */
1060 int num_tq; /* # type qualifiers */
1061 int num_dims; /* # dimensions */
1062 int num_sizes; /* # sizes */
1063 int extra_sizes; /* # extra sizes not tied with dims */
1064 tag_t * tag_ptr; /* tag pointer */
1065 int bitfield; /* symbol is a bitfield */
1066 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1067 symint_t dimensions [N_TQ]; /* dimensions for each array */
1068 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1069 struct/union/enum + bitfield size */
1070 } type_info_t;
1071
1072 /* Pre-initialized type_info struct. */
1073 static const type_info_t type_info_init = {
1074 bt_Nil, /* basic type */
1075 T_NULL, /* original COFF-based type */
1076 0, /* # type qualifiers */
1077 0, /* # dimensions */
1078 0, /* # sizes */
1079 0, /* sizes not tied with dims */
1080 NULL, /* ptr to tag */
1081 0, /* bitfield */
1082 { /* type qualifiers */
1083 tq_Nil,
1084 tq_Nil,
1085 tq_Nil,
1086 tq_Nil,
1087 tq_Nil,
1088 tq_Nil,
1089 },
1090 { /* dimensions */
1091 0,
1092 0,
1093 0,
1094 0,
1095 0,
1096 0
1097 },
1098 { /* sizes */
1099 0,
1100 0,
1101 0,
1102 0,
1103 0,
1104 0,
1105 0,
1106 0,
1107 },
1108 };
1109
1110 /* Global hash table for the tags table and global table for file
1111 descriptors. */
1112
1113 static varray_t file_desc = INIT_VARRAY (efdr_t);
1114
1115 static struct hash_control *tag_hash;
1116
1117 /* Static types for int and void. Also, remember the last function's
1118 type (which is set up when we encounter the declaration for the
1119 function, and used when the end block for the function is emitted. */
1120
1121 static type_info_t int_type_info;
1122 static type_info_t void_type_info;
1123 static type_info_t last_func_type_info;
1124 static symbolS *last_func_sym_value;
1125
1126 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1127 really should use bt_Void, but this causes the current ecoff GDB to
1128 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1129 2.0) doesn't understand it, even though the compiler generates it.
1130 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1131 suite, but for now go with what works.
1132
1133 It would make sense for the .type and .scl directives to use the
1134 ECOFF numbers directly, rather than using the COFF numbers and
1135 mapping them. Unfortunately, this is historically what mips-tfile
1136 expects, and changing gcc now would be a considerable pain (the
1137 native compiler generates debugging information internally, rather
1138 than via the assembler, so it will never use .type or .scl). */
1139
1140 static const bt_t map_coff_types[] = {
1141 bt_Nil, /* T_NULL */
1142 bt_Nil, /* T_ARG */
1143 bt_Char, /* T_CHAR */
1144 bt_Short, /* T_SHORT */
1145 bt_Int, /* T_INT */
1146 bt_Long, /* T_LONG */
1147 bt_Float, /* T_FLOAT */
1148 bt_Double, /* T_DOUBLE */
1149 bt_Struct, /* T_STRUCT */
1150 bt_Union, /* T_UNION */
1151 bt_Enum, /* T_ENUM */
1152 bt_Enum, /* T_MOE */
1153 bt_UChar, /* T_UCHAR */
1154 bt_UShort, /* T_USHORT */
1155 bt_UInt, /* T_UINT */
1156 bt_ULong /* T_ULONG */
1157 };
1158
1159 /* Convert COFF storage class to ECOFF storage class. */
1160 static const sc_t map_coff_storage[] = {
1161 sc_Nil, /* 0: C_NULL */
1162 sc_Abs, /* 1: C_AUTO auto var */
1163 sc_Undefined, /* 2: C_EXT external */
1164 sc_Data, /* 3: C_STAT static */
1165 sc_Register, /* 4: C_REG register */
1166 sc_Undefined, /* 5: C_EXTDEF ??? */
1167 sc_Text, /* 6: C_LABEL label */
1168 sc_Text, /* 7: C_ULABEL user label */
1169 sc_Info, /* 8: C_MOS member of struct */
1170 sc_Abs, /* 9: C_ARG argument */
1171 sc_Info, /* 10: C_STRTAG struct tag */
1172 sc_Info, /* 11: C_MOU member of union */
1173 sc_Info, /* 12: C_UNTAG union tag */
1174 sc_Info, /* 13: C_TPDEF typedef */
1175 sc_Data, /* 14: C_USTATIC ??? */
1176 sc_Info, /* 15: C_ENTAG enum tag */
1177 sc_Info, /* 16: C_MOE member of enum */
1178 sc_Register, /* 17: C_REGPARM register parameter */
1179 sc_Bits, /* 18; C_FIELD bitfield */
1180 sc_Nil, /* 19 */
1181 sc_Nil, /* 20 */
1182 sc_Nil, /* 21 */
1183 sc_Nil, /* 22 */
1184 sc_Nil, /* 23 */
1185 sc_Nil, /* 24 */
1186 sc_Nil, /* 25 */
1187 sc_Nil, /* 26 */
1188 sc_Nil, /* 27 */
1189 sc_Nil, /* 28 */
1190 sc_Nil, /* 29 */
1191 sc_Nil, /* 30 */
1192 sc_Nil, /* 31 */
1193 sc_Nil, /* 32 */
1194 sc_Nil, /* 33 */
1195 sc_Nil, /* 34 */
1196 sc_Nil, /* 35 */
1197 sc_Nil, /* 36 */
1198 sc_Nil, /* 37 */
1199 sc_Nil, /* 38 */
1200 sc_Nil, /* 39 */
1201 sc_Nil, /* 40 */
1202 sc_Nil, /* 41 */
1203 sc_Nil, /* 42 */
1204 sc_Nil, /* 43 */
1205 sc_Nil, /* 44 */
1206 sc_Nil, /* 45 */
1207 sc_Nil, /* 46 */
1208 sc_Nil, /* 47 */
1209 sc_Nil, /* 48 */
1210 sc_Nil, /* 49 */
1211 sc_Nil, /* 50 */
1212 sc_Nil, /* 51 */
1213 sc_Nil, /* 52 */
1214 sc_Nil, /* 53 */
1215 sc_Nil, /* 54 */
1216 sc_Nil, /* 55 */
1217 sc_Nil, /* 56 */
1218 sc_Nil, /* 57 */
1219 sc_Nil, /* 58 */
1220 sc_Nil, /* 59 */
1221 sc_Nil, /* 60 */
1222 sc_Nil, /* 61 */
1223 sc_Nil, /* 62 */
1224 sc_Nil, /* 63 */
1225 sc_Nil, /* 64 */
1226 sc_Nil, /* 65 */
1227 sc_Nil, /* 66 */
1228 sc_Nil, /* 67 */
1229 sc_Nil, /* 68 */
1230 sc_Nil, /* 69 */
1231 sc_Nil, /* 70 */
1232 sc_Nil, /* 71 */
1233 sc_Nil, /* 72 */
1234 sc_Nil, /* 73 */
1235 sc_Nil, /* 74 */
1236 sc_Nil, /* 75 */
1237 sc_Nil, /* 76 */
1238 sc_Nil, /* 77 */
1239 sc_Nil, /* 78 */
1240 sc_Nil, /* 79 */
1241 sc_Nil, /* 80 */
1242 sc_Nil, /* 81 */
1243 sc_Nil, /* 82 */
1244 sc_Nil, /* 83 */
1245 sc_Nil, /* 84 */
1246 sc_Nil, /* 85 */
1247 sc_Nil, /* 86 */
1248 sc_Nil, /* 87 */
1249 sc_Nil, /* 88 */
1250 sc_Nil, /* 89 */
1251 sc_Nil, /* 90 */
1252 sc_Nil, /* 91 */
1253 sc_Nil, /* 92 */
1254 sc_Nil, /* 93 */
1255 sc_Nil, /* 94 */
1256 sc_Nil, /* 95 */
1257 sc_Nil, /* 96 */
1258 sc_Nil, /* 97 */
1259 sc_Nil, /* 98 */
1260 sc_Nil, /* 99 */
1261 sc_Text, /* 100: C_BLOCK block start/end */
1262 sc_Text, /* 101: C_FCN function start/end */
1263 sc_Info, /* 102: C_EOS end of struct/union/enum */
1264 sc_Nil, /* 103: C_FILE file start */
1265 sc_Nil, /* 104: C_LINE line number */
1266 sc_Nil, /* 105: C_ALIAS combined type info */
1267 sc_Nil, /* 106: C_HIDDEN ??? */
1268 };
1269
1270 /* Convert COFF storage class to ECOFF symbol type. */
1271 static const st_t map_coff_sym_type[] = {
1272 st_Nil, /* 0: C_NULL */
1273 st_Local, /* 1: C_AUTO auto var */
1274 st_Global, /* 2: C_EXT external */
1275 st_Static, /* 3: C_STAT static */
1276 st_Local, /* 4: C_REG register */
1277 st_Global, /* 5: C_EXTDEF ??? */
1278 st_Label, /* 6: C_LABEL label */
1279 st_Label, /* 7: C_ULABEL user label */
1280 st_Member, /* 8: C_MOS member of struct */
1281 st_Param, /* 9: C_ARG argument */
1282 st_Block, /* 10: C_STRTAG struct tag */
1283 st_Member, /* 11: C_MOU member of union */
1284 st_Block, /* 12: C_UNTAG union tag */
1285 st_Typedef, /* 13: C_TPDEF typedef */
1286 st_Static, /* 14: C_USTATIC ??? */
1287 st_Block, /* 15: C_ENTAG enum tag */
1288 st_Member, /* 16: C_MOE member of enum */
1289 st_Param, /* 17: C_REGPARM register parameter */
1290 st_Member, /* 18; C_FIELD bitfield */
1291 st_Nil, /* 19 */
1292 st_Nil, /* 20 */
1293 st_Nil, /* 21 */
1294 st_Nil, /* 22 */
1295 st_Nil, /* 23 */
1296 st_Nil, /* 24 */
1297 st_Nil, /* 25 */
1298 st_Nil, /* 26 */
1299 st_Nil, /* 27 */
1300 st_Nil, /* 28 */
1301 st_Nil, /* 29 */
1302 st_Nil, /* 30 */
1303 st_Nil, /* 31 */
1304 st_Nil, /* 32 */
1305 st_Nil, /* 33 */
1306 st_Nil, /* 34 */
1307 st_Nil, /* 35 */
1308 st_Nil, /* 36 */
1309 st_Nil, /* 37 */
1310 st_Nil, /* 38 */
1311 st_Nil, /* 39 */
1312 st_Nil, /* 40 */
1313 st_Nil, /* 41 */
1314 st_Nil, /* 42 */
1315 st_Nil, /* 43 */
1316 st_Nil, /* 44 */
1317 st_Nil, /* 45 */
1318 st_Nil, /* 46 */
1319 st_Nil, /* 47 */
1320 st_Nil, /* 48 */
1321 st_Nil, /* 49 */
1322 st_Nil, /* 50 */
1323 st_Nil, /* 51 */
1324 st_Nil, /* 52 */
1325 st_Nil, /* 53 */
1326 st_Nil, /* 54 */
1327 st_Nil, /* 55 */
1328 st_Nil, /* 56 */
1329 st_Nil, /* 57 */
1330 st_Nil, /* 58 */
1331 st_Nil, /* 59 */
1332 st_Nil, /* 60 */
1333 st_Nil, /* 61 */
1334 st_Nil, /* 62 */
1335 st_Nil, /* 63 */
1336 st_Nil, /* 64 */
1337 st_Nil, /* 65 */
1338 st_Nil, /* 66 */
1339 st_Nil, /* 67 */
1340 st_Nil, /* 68 */
1341 st_Nil, /* 69 */
1342 st_Nil, /* 70 */
1343 st_Nil, /* 71 */
1344 st_Nil, /* 72 */
1345 st_Nil, /* 73 */
1346 st_Nil, /* 74 */
1347 st_Nil, /* 75 */
1348 st_Nil, /* 76 */
1349 st_Nil, /* 77 */
1350 st_Nil, /* 78 */
1351 st_Nil, /* 79 */
1352 st_Nil, /* 80 */
1353 st_Nil, /* 81 */
1354 st_Nil, /* 82 */
1355 st_Nil, /* 83 */
1356 st_Nil, /* 84 */
1357 st_Nil, /* 85 */
1358 st_Nil, /* 86 */
1359 st_Nil, /* 87 */
1360 st_Nil, /* 88 */
1361 st_Nil, /* 89 */
1362 st_Nil, /* 90 */
1363 st_Nil, /* 91 */
1364 st_Nil, /* 92 */
1365 st_Nil, /* 93 */
1366 st_Nil, /* 94 */
1367 st_Nil, /* 95 */
1368 st_Nil, /* 96 */
1369 st_Nil, /* 97 */
1370 st_Nil, /* 98 */
1371 st_Nil, /* 99 */
1372 st_Block, /* 100: C_BLOCK block start/end */
1373 st_Proc, /* 101: C_FCN function start/end */
1374 st_End, /* 102: C_EOS end of struct/union/enum */
1375 st_File, /* 103: C_FILE file start */
1376 st_Nil, /* 104: C_LINE line number */
1377 st_Nil, /* 105: C_ALIAS combined type info */
1378 st_Nil, /* 106: C_HIDDEN ??? */
1379 };
1380
1381 /* Keep track of different sized allocation requests. */
1382 static alloc_info_t alloc_counts[(int) alloc_type_last];
1383 \f
1384 /* Record whether we have seen any debugging information. */
1385 int ecoff_debugging_seen = 0;
1386
1387 /* Various statics. */
1388 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1389 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1390 static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1391 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1392 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1393 #ifdef ECOFF_DEBUG
1394 static int debug = 0; /* trace functions */
1395 #endif
1396 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1397
1398 static int current_file_idx;
1399 static const char *current_stabs_filename;
1400
1401 /* Pseudo symbol to use when putting stabs into the symbol table. */
1402 #ifndef STABS_SYMBOL
1403 #define STABS_SYMBOL "@stabs"
1404 #endif
1405
1406 static char stabs_symbol[] = STABS_SYMBOL;
1407 \f
1408 /* Prototypes for functions defined in this file. */
1409
1410 static void add_varray_page PARAMS ((varray_t *vp));
1411 static symint_t add_string PARAMS ((varray_t *vp,
1412 struct hash_control *hash_tbl,
1413 const char *str,
1414 shash_t **ret_hash));
1415 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1416 sc_t storage, symbolS *sym,
1417 bfd_vma addend, symint_t value,
1418 symint_t indx));
1419 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1420 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1421 symint_t sym_index));
1422 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1423 hash_state_t state,
1424 thash_t **hash_tbl));
1425 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1426 bt_t basic_type));
1427 static void add_unknown_tag PARAMS ((tag_t *ptag));
1428 static void add_procedure PARAMS ((char *func));
1429 static void add_file PARAMS ((const char *file_name, int indx, int fake));
1430 #ifdef ECOFF_DEBUG
1431 static char *sc_to_string PARAMS ((sc_t storage_class));
1432 static char *st_to_string PARAMS ((st_t symbol_type));
1433 #endif
1434 static void mark_stabs PARAMS ((int));
1435 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1436 char *bufptr, unsigned long need));
1437 static unsigned long ecoff_padding_adjust
1438 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1439 unsigned long offset, char **bufptrptr));
1440 static unsigned long ecoff_build_lineno
1441 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1442 unsigned long offset, long *linecntptr));
1443 static unsigned long ecoff_build_symbols
1444 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1445 unsigned long offset));
1446 static unsigned long ecoff_build_procs
1447 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1448 unsigned long offset));
1449 static unsigned long ecoff_build_aux
1450 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1451 unsigned long offset));
1452 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1453 unsigned long offset,
1454 varray_t *vp));
1455 static unsigned long ecoff_build_ss
1456 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1457 unsigned long offset));
1458 static unsigned long ecoff_build_fdr
1459 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1460 unsigned long offset));
1461 static void ecoff_setup_ext PARAMS ((void));
1462 static page_type *allocate_cluster PARAMS ((unsigned long npages));
1463 static page_type *allocate_page PARAMS ((void));
1464 static scope_t *allocate_scope PARAMS ((void));
1465 static void free_scope PARAMS ((scope_t *ptr));
1466 static vlinks_t *allocate_vlinks PARAMS ((void));
1467 static shash_t *allocate_shash PARAMS ((void));
1468 static thash_t *allocate_thash PARAMS ((void));
1469 static tag_t *allocate_tag PARAMS ((void));
1470 static void free_tag PARAMS ((tag_t *ptr));
1471 static forward_t *allocate_forward PARAMS ((void));
1472 static thead_t *allocate_thead PARAMS ((void));
1473 static void free_thead PARAMS ((thead_t *ptr));
1474 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1475 \f
1476 /* This function should be called when the assembler starts up. */
1477
1478 void
1479 ecoff_read_begin_hook ()
1480 {
1481 tag_hash = hash_new ();
1482 top_tag_head = allocate_thead ();
1483 top_tag_head->first_tag = (tag_t *) NULL;
1484 top_tag_head->free = (thead_t *) NULL;
1485 top_tag_head->prev = cur_tag_head;
1486 cur_tag_head = top_tag_head;
1487 }
1488
1489 /* This function should be called when a symbol is created. */
1490
1491 void
1492 ecoff_symbol_new_hook (symbolP)
1493 symbolS *symbolP;
1494 {
1495 OBJ_SYMFIELD_TYPE *obj;
1496
1497 /* Make sure that we have a file pointer, but only if we have seen a
1498 file. If we haven't seen a file, then this is a probably special
1499 symbol created by md_begin which may required special handling at
1500 some point. Creating a dummy file with a dummy name is certainly
1501 wrong. */
1502 if (cur_file_ptr == (efdr_t *) NULL
1503 && seen_at_least_1_file ())
1504 add_file ((const char *) NULL, 0, 1);
1505 obj = symbol_get_obj (symbolP);
1506 obj->ecoff_file = cur_file_ptr;
1507 obj->ecoff_symbol = NULL;
1508 obj->ecoff_extern_size = 0;
1509 }
1510 \f
1511 /* Add a page to a varray object. */
1512
1513 static void
1514 add_varray_page (vp)
1515 varray_t *vp; /* varray to add page to */
1516 {
1517 vlinks_t *new_links = allocate_vlinks ();
1518
1519 #ifdef MALLOC_CHECK
1520 if (vp->object_size > 1)
1521 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1522 else
1523 #endif
1524 new_links->datum = allocate_page ();
1525
1526 alloc_counts[(int) alloc_type_varray].total_alloc++;
1527 alloc_counts[(int) alloc_type_varray].total_pages++;
1528
1529 new_links->start_index = vp->num_allocated;
1530 vp->objects_last_page = 0;
1531
1532 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1533 vp->first = vp->last = new_links;
1534 else
1535 { /* 2nd or greater allocation */
1536 new_links->prev = vp->last;
1537 vp->last->next = new_links;
1538 vp->last = new_links;
1539 }
1540 }
1541 \f
1542 /* Add a string (and null pad) to one of the string tables. */
1543
1544 static symint_t
1545 add_string (vp, hash_tbl, str, ret_hash)
1546 varray_t *vp; /* string obstack */
1547 struct hash_control *hash_tbl; /* ptr to hash table */
1548 const char *str; /* string */
1549 shash_t **ret_hash; /* return hash pointer */
1550 {
1551 register unsigned long len = strlen (str);
1552 register shash_t *hash_ptr;
1553
1554 if (len >= PAGE_USIZE)
1555 as_fatal (_("String too big (%lu bytes)"), len);
1556
1557 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1558 if (hash_ptr == (shash_t *) NULL)
1559 {
1560 register const char *err;
1561
1562 if (vp->objects_last_page + len >= PAGE_USIZE)
1563 {
1564 vp->num_allocated =
1565 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1566 add_varray_page (vp);
1567 }
1568
1569 hash_ptr = allocate_shash ();
1570 hash_ptr->indx = vp->num_allocated;
1571
1572 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1573
1574 vp->objects_last_page += len + 1;
1575 vp->num_allocated += len + 1;
1576
1577 strcpy (hash_ptr->string, str);
1578
1579 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1580 if (err)
1581 as_fatal (_("Inserting \"%s\" into string hash table: %s"),
1582 str, err);
1583 }
1584
1585 if (ret_hash != (shash_t **) NULL)
1586 *ret_hash = hash_ptr;
1587
1588 return hash_ptr->indx;
1589 }
1590 \f
1591 /* Add debugging information for a symbol. */
1592
1593 static localsym_t *
1594 add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
1595 const char *str; /* symbol name */
1596 st_t type; /* symbol type */
1597 sc_t storage; /* storage class */
1598 symbolS *sym_value; /* associated symbol. */
1599 bfd_vma addend; /* addend to sym_value. */
1600 symint_t value; /* value of symbol */
1601 symint_t indx; /* index to local/aux. syms */
1602 {
1603 localsym_t *psym;
1604 register scope_t *pscope;
1605 register thead_t *ptag_head;
1606 register tag_t *ptag;
1607 register tag_t *ptag_next;
1608 register varray_t *vp;
1609 register int scope_delta = 0;
1610 shash_t *hash_ptr = (shash_t *) NULL;
1611
1612 if (cur_file_ptr == (efdr_t *) NULL)
1613 as_fatal (_("no current file pointer"));
1614
1615 vp = &cur_file_ptr->symbols;
1616
1617 if (vp->objects_last_page == vp->objects_per_page)
1618 add_varray_page (vp);
1619
1620 psym = &vp->last->datum->sym[vp->objects_last_page++];
1621
1622 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1623 psym->name = S_GET_NAME (sym_value);
1624 else
1625 psym->name = str;
1626 psym->as_sym = sym_value;
1627 if (sym_value != (symbolS *) NULL)
1628 symbol_get_obj (sym_value)->ecoff_symbol = psym;
1629 psym->addend = addend;
1630 psym->file_ptr = cur_file_ptr;
1631 psym->proc_ptr = cur_proc_ptr;
1632 psym->begin_ptr = (localsym_t *) NULL;
1633 psym->index_ptr = (aux_t *) NULL;
1634 psym->forward_ref = (forward_t *) NULL;
1635 psym->sym_index = -1;
1636 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1637 psym->ecoff_sym.asym.value = value;
1638 psym->ecoff_sym.asym.st = (unsigned) type;
1639 psym->ecoff_sym.asym.sc = (unsigned) storage;
1640 psym->ecoff_sym.asym.index = indx;
1641
1642 /* If there is an associated symbol, we wait until the end of the
1643 assembly before deciding where to put the name (it may be just an
1644 external symbol). Otherwise, this is just a debugging symbol and
1645 the name should go with the current file. */
1646 if (sym_value == (symbolS *) NULL)
1647 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1648 ? 0
1649 : add_string (&cur_file_ptr->strings,
1650 cur_file_ptr->str_hash,
1651 str,
1652 &hash_ptr));
1653
1654 ++vp->num_allocated;
1655
1656 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1657 return psym;
1658
1659 /* Save the symbol within the hash table if this is a static
1660 item, and it has a name. */
1661 if (hash_ptr != (shash_t *) NULL
1662 && (type == st_Global || type == st_Static || type == st_Label
1663 || type == st_Proc || type == st_StaticProc))
1664 hash_ptr->sym_ptr = psym;
1665
1666 /* push or pop a scope if appropriate. */
1667 switch (type)
1668 {
1669 default:
1670 break;
1671
1672 case st_File: /* beginning of file */
1673 case st_Proc: /* procedure */
1674 case st_StaticProc: /* static procedure */
1675 case st_Block: /* begin scope */
1676 pscope = allocate_scope ();
1677 pscope->prev = cur_file_ptr->cur_scope;
1678 pscope->lsym = psym;
1679 pscope->type = type;
1680 cur_file_ptr->cur_scope = pscope;
1681
1682 if (type != st_File)
1683 scope_delta = 1;
1684
1685 /* For every block type except file, struct, union, or
1686 enumeration blocks, push a level on the tag stack. We omit
1687 file types, so that tags can span file boundaries. */
1688 if (type != st_File && storage != sc_Info)
1689 {
1690 ptag_head = allocate_thead ();
1691 ptag_head->first_tag = 0;
1692 ptag_head->prev = cur_tag_head;
1693 cur_tag_head = ptag_head;
1694 }
1695 break;
1696
1697 case st_End:
1698 pscope = cur_file_ptr->cur_scope;
1699 if (pscope == (scope_t *) NULL)
1700 as_fatal (_("too many st_End's"));
1701 else
1702 {
1703 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1704
1705 psym->begin_ptr = pscope->lsym;
1706
1707 if (begin_type != st_File)
1708 scope_delta = -1;
1709
1710 /* Except for file, structure, union, or enumeration end
1711 blocks remove all tags created within this scope. */
1712 if (begin_type != st_File && storage != sc_Info)
1713 {
1714 ptag_head = cur_tag_head;
1715 cur_tag_head = ptag_head->prev;
1716
1717 for (ptag = ptag_head->first_tag;
1718 ptag != (tag_t *) NULL;
1719 ptag = ptag_next)
1720 {
1721 if (ptag->forward_ref != (forward_t *) NULL)
1722 add_unknown_tag (ptag);
1723
1724 ptag_next = ptag->same_block;
1725 ptag->hash_ptr->tag_ptr = ptag->same_name;
1726 free_tag (ptag);
1727 }
1728
1729 free_thead (ptag_head);
1730 }
1731
1732 cur_file_ptr->cur_scope = pscope->prev;
1733
1734 /* block begin gets next sym #. This is set when we know
1735 the symbol index value. */
1736
1737 /* Functions push two or more aux words as follows:
1738 1st word: index+1 of the end symbol (filled in later).
1739 2nd word: type of the function (plus any aux words needed).
1740 Also, tie the external pointer back to the function begin symbol. */
1741 if (begin_type != st_File && begin_type != st_Block)
1742 {
1743 symint_t ty;
1744 varray_t *svp = &cur_file_ptr->aux_syms;
1745
1746 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1747 pscope->lsym->index_ptr =
1748 &svp->last->datum->aux[svp->objects_last_page - 1];
1749 ty = add_aux_sym_tir (&last_func_type_info,
1750 hash_no,
1751 &cur_file_ptr->thash_head[0]);
1752
1753 /* This seems to be unnecessary. I'm not even sure what it is
1754 * intended to do. It's from mips-tfile.
1755 * if (last_func_sym_value != (symbolS *) NULL)
1756 * {
1757 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1758 * last_func_sym_value->index = ty;
1759 * }
1760 */
1761 }
1762
1763 free_scope (pscope);
1764 }
1765 }
1766
1767 cur_file_ptr->nested_scopes += scope_delta;
1768
1769 #ifdef ECOFF_DEBUG
1770 if (debug && type != st_File
1771 && (debug > 2 || type == st_Block || type == st_End
1772 || type == st_Proc || type == st_StaticProc))
1773 {
1774 char *sc_str = sc_to_string (storage);
1775 char *st_str = st_to_string (type);
1776 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1777
1778 fprintf (stderr,
1779 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1780 value, depth, sc_str);
1781
1782 if (str_start && str_end_p1 - str_start > 0)
1783 fprintf (stderr, " st= %-11s name= %.*s\n",
1784 st_str, str_end_p1 - str_start, str_start);
1785 else
1786 {
1787 unsigned long len = strlen (st_str);
1788 fprintf (stderr, " st= %.*s\n", len - 1, st_str);
1789 }
1790 }
1791 #endif
1792
1793 return psym;
1794 }
1795 \f
1796 /* Add an auxiliary symbol (passing a symint). This is actually used
1797 for integral aux types, not just symints. */
1798
1799 static symint_t
1800 add_aux_sym_symint (aux_word)
1801 symint_t aux_word; /* auxiliary information word */
1802 {
1803 register varray_t *vp;
1804 register aux_t *aux_ptr;
1805
1806 if (cur_file_ptr == (efdr_t *) NULL)
1807 as_fatal (_("no current file pointer"));
1808
1809 vp = &cur_file_ptr->aux_syms;
1810
1811 if (vp->objects_last_page == vp->objects_per_page)
1812 add_varray_page (vp);
1813
1814 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1815 aux_ptr->type = aux_isym;
1816 aux_ptr->data.isym = aux_word;
1817
1818 return vp->num_allocated++;
1819 }
1820
1821 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1822
1823 static symint_t
1824 add_aux_sym_rndx (file_index, sym_index)
1825 int file_index;
1826 symint_t sym_index;
1827 {
1828 register varray_t *vp;
1829 register aux_t *aux_ptr;
1830
1831 if (cur_file_ptr == (efdr_t *) NULL)
1832 as_fatal (_("no current file pointer"));
1833
1834 vp = &cur_file_ptr->aux_syms;
1835
1836 if (vp->objects_last_page == vp->objects_per_page)
1837 add_varray_page (vp);
1838
1839 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1840 aux_ptr->type = aux_rndx;
1841 aux_ptr->data.rndx.rfd = file_index;
1842 aux_ptr->data.rndx.index = sym_index;
1843
1844 return vp->num_allocated++;
1845 }
1846 \f
1847 /* Add an auxiliary symbol (passing the basic type and possibly
1848 type qualifiers). */
1849
1850 static symint_t
1851 add_aux_sym_tir (t, state, hash_tbl)
1852 type_info_t *t; /* current type information */
1853 hash_state_t state; /* whether to hash type or not */
1854 thash_t **hash_tbl; /* pointer to hash table to use */
1855 {
1856 register varray_t *vp;
1857 register aux_t *aux_ptr;
1858 static AUXU init_aux;
1859 symint_t ret;
1860 int i;
1861 AUXU aux;
1862
1863 if (cur_file_ptr == (efdr_t *) NULL)
1864 as_fatal (_("no current file pointer"));
1865
1866 vp = &cur_file_ptr->aux_syms;
1867
1868 aux = init_aux;
1869 aux.ti.bt = (int) t->basic_type;
1870 aux.ti.continued = 0;
1871 aux.ti.fBitfield = t->bitfield;
1872
1873 aux.ti.tq0 = (int) t->type_qualifiers[0];
1874 aux.ti.tq1 = (int) t->type_qualifiers[1];
1875 aux.ti.tq2 = (int) t->type_qualifiers[2];
1876 aux.ti.tq3 = (int) t->type_qualifiers[3];
1877 aux.ti.tq4 = (int) t->type_qualifiers[4];
1878 aux.ti.tq5 = (int) t->type_qualifiers[5];
1879
1880 /* For anything that adds additional information, we must not hash,
1881 so check here, and reset our state. */
1882
1883 if (state != hash_no
1884 && (t->type_qualifiers[0] == tq_Array
1885 || t->type_qualifiers[1] == tq_Array
1886 || t->type_qualifiers[2] == tq_Array
1887 || t->type_qualifiers[3] == tq_Array
1888 || t->type_qualifiers[4] == tq_Array
1889 || t->type_qualifiers[5] == tq_Array
1890 || t->basic_type == bt_Struct
1891 || t->basic_type == bt_Union
1892 || t->basic_type == bt_Enum
1893 || t->bitfield
1894 || t->num_dims > 0))
1895 state = hash_no;
1896
1897 /* See if we can hash this type, and save some space, but some types
1898 can't be hashed (because they contain arrays or continuations),
1899 and others can be put into the hash list, but cannot use existing
1900 types because other aux entries precede this one. */
1901
1902 if (state != hash_no)
1903 {
1904 register thash_t *hash_ptr;
1905 register symint_t hi;
1906
1907 hi = aux.isym & ((1 << HASHBITS) - 1);
1908 hi %= THASH_SIZE;
1909
1910 for (hash_ptr = hash_tbl[hi];
1911 hash_ptr != (thash_t *)0;
1912 hash_ptr = hash_ptr->next)
1913 {
1914 if (aux.isym == hash_ptr->type.isym)
1915 break;
1916 }
1917
1918 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1919 return hash_ptr->indx;
1920
1921 if (hash_ptr == (thash_t *) NULL)
1922 {
1923 hash_ptr = allocate_thash ();
1924 hash_ptr->next = hash_tbl[hi];
1925 hash_ptr->type = aux;
1926 hash_ptr->indx = vp->num_allocated;
1927 hash_tbl[hi] = hash_ptr;
1928 }
1929 }
1930
1931 /* Everything is set up, add the aux symbol. */
1932 if (vp->objects_last_page == vp->objects_per_page)
1933 add_varray_page (vp);
1934
1935 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1936 aux_ptr->type = aux_tir;
1937 aux_ptr->data = aux;
1938
1939 ret = vp->num_allocated++;
1940
1941 /* Add bitfield length if it exists.
1942
1943 NOTE: Mips documentation claims bitfield goes at the end of the
1944 AUX record, but the DECstation compiler emits it here.
1945 (This would only make a difference for enum bitfields.)
1946
1947 Also note: We use the last size given since gcc may emit 2
1948 for an enum bitfield. */
1949
1950 if (t->bitfield)
1951 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes - 1]);
1952
1953 /* Add tag information if needed. Structure, union, and enum
1954 references add 2 aux symbols: a [file index, symbol index]
1955 pointer to the structure type, and the current file index. */
1956
1957 if (t->basic_type == bt_Struct
1958 || t->basic_type == bt_Union
1959 || t->basic_type == bt_Enum)
1960 {
1961 register symint_t file_index = t->tag_ptr->ifd;
1962 register localsym_t *sym = t->tag_ptr->sym;
1963 register forward_t *forward_ref = allocate_forward ();
1964
1965 if (sym != (localsym_t *) NULL)
1966 {
1967 forward_ref->next = sym->forward_ref;
1968 sym->forward_ref = forward_ref;
1969 }
1970 else
1971 {
1972 forward_ref->next = t->tag_ptr->forward_ref;
1973 t->tag_ptr->forward_ref = forward_ref;
1974 }
1975
1976 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1977 forward_ref->index_ptr
1978 = &vp->last->datum->aux[vp->objects_last_page - 1];
1979
1980 (void) add_aux_sym_symint (file_index);
1981 forward_ref->ifd_ptr
1982 = &vp->last->datum->aux[vp->objects_last_page - 1];
1983 }
1984
1985 /* Add information about array bounds if they exist. */
1986 for (i = 0; i < t->num_dims; i++)
1987 {
1988 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1989 cur_file_ptr->int_type);
1990
1991 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
1992 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
1993 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
1994 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
1995 ? 0
1996 : (t->sizes[i] * 8) / t->dimensions[i]);
1997 };
1998
1999 /* NOTE: Mips documentation claims that the bitfield width goes here.
2000 But it needs to be emitted earlier. */
2001
2002 return ret;
2003 }
2004 \f
2005 /* Add a tag to the tag table (unless it already exists). */
2006
2007 static tag_t *
2008 get_tag (tag, sym, basic_type)
2009 const char *tag; /* tag name */
2010 localsym_t *sym; /* tag start block */
2011 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2012 {
2013 shash_t *hash_ptr;
2014 const char *err;
2015 tag_t *tag_ptr;
2016
2017 if (cur_file_ptr == (efdr_t *) NULL)
2018 as_fatal (_("no current file pointer"));
2019
2020 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2021
2022 if (hash_ptr != (shash_t *) NULL
2023 && hash_ptr->tag_ptr != (tag_t *) NULL)
2024 {
2025 tag_ptr = hash_ptr->tag_ptr;
2026 if (sym != (localsym_t *) NULL)
2027 {
2028 tag_ptr->basic_type = basic_type;
2029 tag_ptr->ifd = cur_file_ptr->file_index;
2030 tag_ptr->sym = sym;
2031 }
2032 return tag_ptr;
2033 }
2034
2035 if (hash_ptr == (shash_t *) NULL)
2036 {
2037 char *perm;
2038
2039 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2040 strcpy (perm, tag);
2041 hash_ptr = allocate_shash ();
2042 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2043 if (err)
2044 as_fatal (_("Inserting \"%s\" into tag hash table: %s"),
2045 tag, err);
2046 hash_ptr->string = perm;
2047 }
2048
2049 tag_ptr = allocate_tag ();
2050 tag_ptr->forward_ref = (forward_t *) NULL;
2051 tag_ptr->hash_ptr = hash_ptr;
2052 tag_ptr->same_name = hash_ptr->tag_ptr;
2053 tag_ptr->basic_type = basic_type;
2054 tag_ptr->sym = sym;
2055 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2056 ? (symint_t) -1
2057 : cur_file_ptr->file_index);
2058 tag_ptr->same_block = cur_tag_head->first_tag;
2059
2060 cur_tag_head->first_tag = tag_ptr;
2061 hash_ptr->tag_ptr = tag_ptr;
2062
2063 return tag_ptr;
2064 }
2065 \f
2066 /* Add an unknown {struct, union, enum} tag. */
2067
2068 static void
2069 add_unknown_tag (ptag)
2070 tag_t *ptag; /* pointer to tag information */
2071 {
2072 shash_t *hash_ptr = ptag->hash_ptr;
2073 char *name = hash_ptr->string;
2074 localsym_t *sym;
2075 forward_t **pf;
2076
2077 #ifdef ECOFF_DEBUG
2078 if (debug > 1)
2079 {
2080 char *agg_type = "{unknown aggregate type}";
2081 switch (ptag->basic_type)
2082 {
2083 case bt_Struct: agg_type = "struct"; break;
2084 case bt_Union: agg_type = "union"; break;
2085 case bt_Enum: agg_type = "enum"; break;
2086 default: break;
2087 }
2088
2089 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2090 hash_ptr->len, name_start);
2091 }
2092 #endif
2093
2094 sym = add_ecoff_symbol (name,
2095 st_Block,
2096 sc_Info,
2097 (symbolS *) NULL,
2098 (bfd_vma) 0,
2099 (symint_t) 0,
2100 (symint_t) 0);
2101
2102 (void) add_ecoff_symbol (name,
2103 st_End,
2104 sc_Info,
2105 (symbolS *) NULL,
2106 (bfd_vma) 0,
2107 (symint_t) 0,
2108 (symint_t) 0);
2109
2110 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2111 ;
2112 *pf = ptag->forward_ref;
2113 }
2114 \f
2115 /* Add a procedure to the current file's list of procedures, and record
2116 this is the current procedure. */
2117
2118 static void
2119 add_procedure (func)
2120 char *func; /* func name */
2121 {
2122 register varray_t *vp;
2123 register proc_t *new_proc_ptr;
2124 symbolS *sym;
2125
2126 #ifdef ECOFF_DEBUG
2127 if (debug)
2128 fputc ('\n', stderr);
2129 #endif
2130
2131 if (cur_file_ptr == (efdr_t *) NULL)
2132 as_fatal (_("no current file pointer"));
2133
2134 vp = &cur_file_ptr->procs;
2135
2136 if (vp->objects_last_page == vp->objects_per_page)
2137 add_varray_page (vp);
2138
2139 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2140
2141 if (first_proc_ptr == (proc_t *) NULL)
2142 first_proc_ptr = new_proc_ptr;
2143
2144 vp->num_allocated++;
2145
2146 new_proc_ptr->pdr.isym = -1;
2147 new_proc_ptr->pdr.iline = -1;
2148 new_proc_ptr->pdr.lnLow = -1;
2149 new_proc_ptr->pdr.lnHigh = -1;
2150
2151 /* Set the BSF_FUNCTION flag for the symbol. */
2152 sym = symbol_find_or_make (func);
2153 symbol_get_bfdsym (sym)->flags |= BSF_FUNCTION;
2154
2155 /* Push the start of the function. */
2156 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2157 sym, (bfd_vma) 0, (symint_t) 0,
2158 (symint_t) 0);
2159
2160 ++proc_cnt;
2161
2162 /* Fill in the linenos preceding the .ent, if any. */
2163 if (noproc_lineno != (lineno_list_t *) NULL)
2164 {
2165 lineno_list_t *l;
2166
2167 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2168 l->proc = new_proc_ptr;
2169 *last_lineno_ptr = noproc_lineno;
2170 while (*last_lineno_ptr != NULL)
2171 {
2172 last_lineno = *last_lineno_ptr;
2173 last_lineno_ptr = &last_lineno->next;
2174 }
2175 noproc_lineno = (lineno_list_t *) NULL;
2176 }
2177 }
2178
2179 symbolS *
2180 ecoff_get_cur_proc_sym ()
2181 {
2182 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL);
2183 }
2184 \f
2185 /* Add a new filename, and set up all of the file relative
2186 virtual arrays (strings, symbols, aux syms, etc.). Record
2187 where the current file structure lives. */
2188
2189 static void
2190 add_file (file_name, indx, fake)
2191 const char *file_name; /* file name */
2192 int indx;
2193 int fake;
2194 {
2195 register int first_ch;
2196 register efdr_t *fil_ptr;
2197
2198 #ifdef ECOFF_DEBUG
2199 if (debug)
2200 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2201 #endif
2202
2203 /* If the file name is NULL, then no .file symbol appeared, and we
2204 want to use the actual file name. */
2205 if (file_name == (const char *) NULL)
2206 {
2207 char *file;
2208
2209 if (first_file != (efdr_t *) NULL)
2210 as_fatal (_("fake .file after real one"));
2211 as_where (&file, (unsigned int *) NULL);
2212 file_name = (const char *) file;
2213
2214 /* Automatically generate ECOFF debugging information, since I
2215 think that's what other ECOFF assemblers do. We don't do
2216 this if we see a .file directive with a string, since that
2217 implies that some sort of debugging information is being
2218 provided. */
2219 if (! symbol_table_frozen && debug_type == DEBUG_NONE)
2220 debug_type = DEBUG_ECOFF;
2221 }
2222
2223 #ifndef NO_LISTING
2224 if (listing)
2225 listing_source_file (file_name);
2226 #endif
2227
2228 current_stabs_filename = file_name;
2229
2230 /* If we're creating stabs, then we don't actually make a new FDR.
2231 Instead, we just create a stabs symbol. */
2232 if (stabs_seen)
2233 {
2234 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2235 symbol_new ("L0\001", now_seg,
2236 (valueT) frag_now_fix (),
2237 frag_now),
2238 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2239 return;
2240 }
2241
2242 first_ch = *file_name;
2243
2244 /* FIXME: We can't safely merge files which have line number
2245 information (fMerge will be zero in this case). Otherwise, we
2246 get incorrect line number debugging info. See for instance
2247 ecoff_build_lineno, which will end up setting all file->fdr.*
2248 fields multiple times, resulting in incorrect debug info. In
2249 order to make this work right, all line number and symbol info
2250 for the same source file has to be adjacent in the object file,
2251 so that a single file descriptor can be used to point to them.
2252 This would require maintaining file specific lists of line
2253 numbers and symbols for each file, so that they can be merged
2254 together (or output together) when two .file pseudo-ops are
2255 merged into one file descriptor. */
2256
2257 /* See if the file has already been created. */
2258 for (fil_ptr = first_file;
2259 fil_ptr != (efdr_t *) NULL;
2260 fil_ptr = fil_ptr->next_file)
2261 {
2262 if (first_ch == fil_ptr->name[0]
2263 && strcmp (file_name, fil_ptr->name) == 0
2264 && fil_ptr->fdr.fMerge)
2265 {
2266 cur_file_ptr = fil_ptr;
2267 if (! fake)
2268 cur_file_ptr->fake = 0;
2269 break;
2270 }
2271 }
2272
2273 /* If this is a new file, create it. */
2274 if (fil_ptr == (efdr_t *) NULL)
2275 {
2276 if (file_desc.objects_last_page == file_desc.objects_per_page)
2277 add_varray_page (&file_desc);
2278
2279 fil_ptr = cur_file_ptr =
2280 &file_desc.last->datum->file[file_desc.objects_last_page++];
2281 *fil_ptr = init_file;
2282
2283 fil_ptr->file_index = current_file_idx++;
2284 ++file_desc.num_allocated;
2285
2286 fil_ptr->fake = fake;
2287
2288 /* Allocate the string hash table. */
2289 fil_ptr->str_hash = hash_new ();
2290
2291 /* Make sure 0 byte in string table is null */
2292 add_string (&fil_ptr->strings,
2293 fil_ptr->str_hash,
2294 "",
2295 (shash_t **)0);
2296
2297 if (strlen (file_name) > PAGE_USIZE - 2)
2298 as_fatal (_("Filename goes over one page boundary."));
2299
2300 /* Push the start of the filename. We assume that the filename
2301 will be stored at string offset 1. */
2302 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2303 (symbolS *) NULL, (bfd_vma) 0,
2304 (symint_t) 0, (symint_t) 0);
2305 fil_ptr->fdr.rss = 1;
2306 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2307
2308 /* Update the linked list of file descriptors. */
2309 *last_file_ptr = fil_ptr;
2310 last_file_ptr = &fil_ptr->next_file;
2311
2312 /* Add void & int types to the file (void should be first to catch
2313 errant 0's within the index fields). */
2314 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2315 hash_yes,
2316 &cur_file_ptr->thash_head[0]);
2317
2318 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2319 hash_yes,
2320 &cur_file_ptr->thash_head[0]);
2321 }
2322 }
2323
2324 /* This function is called when the assembler notices a preprocessor
2325 directive switching to a new file. This will not happen in
2326 compiler output, only in hand coded assembler. */
2327
2328 void
2329 ecoff_new_file (name)
2330 const char *name;
2331 {
2332 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2333 return;
2334 add_file (name, 0, 0);
2335
2336 /* This is a hand coded assembler file, so automatically turn on
2337 debugging information. */
2338 if (debug_type == DEBUG_NONE)
2339 debug_type = DEBUG_ECOFF;
2340 }
2341 \f
2342 #ifdef ECOFF_DEBUG
2343
2344 /* Convert storage class to string. */
2345
2346 static char *
2347 sc_to_string (storage_class)
2348 sc_t storage_class;
2349 {
2350 switch (storage_class)
2351 {
2352 case sc_Nil: return "Nil,";
2353 case sc_Text: return "Text,";
2354 case sc_Data: return "Data,";
2355 case sc_Bss: return "Bss,";
2356 case sc_Register: return "Register,";
2357 case sc_Abs: return "Abs,";
2358 case sc_Undefined: return "Undefined,";
2359 case sc_CdbLocal: return "CdbLocal,";
2360 case sc_Bits: return "Bits,";
2361 case sc_CdbSystem: return "CdbSystem,";
2362 case sc_RegImage: return "RegImage,";
2363 case sc_Info: return "Info,";
2364 case sc_UserStruct: return "UserStruct,";
2365 case sc_SData: return "SData,";
2366 case sc_SBss: return "SBss,";
2367 case sc_RData: return "RData,";
2368 case sc_Var: return "Var,";
2369 case sc_Common: return "Common,";
2370 case sc_SCommon: return "SCommon,";
2371 case sc_VarRegister: return "VarRegister,";
2372 case sc_Variant: return "Variant,";
2373 case sc_SUndefined: return "SUndefined,";
2374 case sc_Init: return "Init,";
2375 case sc_Max: return "Max,";
2376 }
2377
2378 return "???,";
2379 }
2380
2381 #endif /* DEBUG */
2382 \f
2383 #ifdef ECOFF_DEBUG
2384
2385 /* Convert symbol type to string. */
2386
2387 static char *
2388 st_to_string (symbol_type)
2389 st_t symbol_type;
2390 {
2391 switch (symbol_type)
2392 {
2393 case st_Nil: return "Nil,";
2394 case st_Global: return "Global,";
2395 case st_Static: return "Static,";
2396 case st_Param: return "Param,";
2397 case st_Local: return "Local,";
2398 case st_Label: return "Label,";
2399 case st_Proc: return "Proc,";
2400 case st_Block: return "Block,";
2401 case st_End: return "End,";
2402 case st_Member: return "Member,";
2403 case st_Typedef: return "Typedef,";
2404 case st_File: return "File,";
2405 case st_RegReloc: return "RegReloc,";
2406 case st_Forward: return "Forward,";
2407 case st_StaticProc: return "StaticProc,";
2408 case st_Constant: return "Constant,";
2409 case st_Str: return "String,";
2410 case st_Number: return "Number,";
2411 case st_Expr: return "Expr,";
2412 case st_Type: return "Type,";
2413 case st_Max: return "Max,";
2414 }
2415
2416 return "???,";
2417 }
2418
2419 #endif /* DEBUG */
2420 \f
2421 /* Parse .begin directives which have a label as the first argument
2422 which gives the location of the start of the block. */
2423
2424 void
2425 ecoff_directive_begin (ignore)
2426 int ignore;
2427 {
2428 char *name;
2429 char name_end;
2430
2431 if (cur_file_ptr == (efdr_t *) NULL)
2432 {
2433 as_warn (_(".begin directive without a preceding .file directive"));
2434 demand_empty_rest_of_line ();
2435 return;
2436 }
2437
2438 if (cur_proc_ptr == (proc_t *) NULL)
2439 {
2440 as_warn (_(".begin directive without a preceding .ent directive"));
2441 demand_empty_rest_of_line ();
2442 return;
2443 }
2444
2445 name = input_line_pointer;
2446 name_end = get_symbol_end ();
2447
2448 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2449 symbol_find_or_make (name),
2450 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2451
2452 *input_line_pointer = name_end;
2453
2454 /* The line number follows, but we don't use it. */
2455 (void) get_absolute_expression ();
2456 demand_empty_rest_of_line ();
2457 }
2458 \f
2459 /* Parse .bend directives which have a label as the first argument
2460 which gives the location of the end of the block. */
2461
2462 void
2463 ecoff_directive_bend (ignore)
2464 int ignore;
2465 {
2466 char *name;
2467 char name_end;
2468 symbolS *endsym;
2469
2470 if (cur_file_ptr == (efdr_t *) NULL)
2471 {
2472 as_warn (_(".bend directive without a preceding .file directive"));
2473 demand_empty_rest_of_line ();
2474 return;
2475 }
2476
2477 if (cur_proc_ptr == (proc_t *) NULL)
2478 {
2479 as_warn (_(".bend directive without a preceding .ent directive"));
2480 demand_empty_rest_of_line ();
2481 return;
2482 }
2483
2484 name = input_line_pointer;
2485 name_end = get_symbol_end ();
2486
2487 /* The value is the distance between the .bend directive and the
2488 corresponding symbol. We fill in the offset when we write out
2489 the symbol. */
2490 endsym = symbol_find (name);
2491 if (endsym == (symbolS *) NULL)
2492 as_warn (_(".bend directive names unknown symbol"));
2493 else
2494 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2495 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2496
2497 *input_line_pointer = name_end;
2498
2499 /* The line number follows, but we don't use it. */
2500 (void) get_absolute_expression ();
2501 demand_empty_rest_of_line ();
2502 }
2503 \f
2504 /* COFF debugging information is provided as a series of directives
2505 (.def, .scl, etc.). We build up information as we read the
2506 directives in the following static variables, and file it away when
2507 we reach the .endef directive. */
2508 static char *coff_sym_name;
2509 static type_info_t coff_type;
2510 static sc_t coff_storage_class;
2511 static st_t coff_symbol_typ;
2512 static int coff_is_function;
2513 static char *coff_tag;
2514 static valueT coff_value;
2515 static symbolS *coff_sym_value;
2516 static bfd_vma coff_sym_addend;
2517 static int coff_inside_enumeration;
2518
2519 /* Handle a .def directive: start defining a symbol. */
2520
2521 void
2522 ecoff_directive_def (ignore)
2523 int ignore;
2524 {
2525 char *name;
2526 char name_end;
2527
2528 ecoff_debugging_seen = 1;
2529
2530 SKIP_WHITESPACE ();
2531
2532 name = input_line_pointer;
2533 name_end = get_symbol_end ();
2534
2535 if (coff_sym_name != (char *) NULL)
2536 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2537 else if (*name == '\0')
2538 as_warn (_("Empty symbol name in .def; ignored"));
2539 else
2540 {
2541 if (coff_sym_name != (char *) NULL)
2542 free (coff_sym_name);
2543 if (coff_tag != (char *) NULL)
2544 free (coff_tag);
2545 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2546 strcpy (coff_sym_name, name);
2547 coff_type = type_info_init;
2548 coff_storage_class = sc_Nil;
2549 coff_symbol_typ = st_Nil;
2550 coff_is_function = 0;
2551 coff_tag = (char *) NULL;
2552 coff_value = 0;
2553 coff_sym_value = (symbolS *) NULL;
2554 coff_sym_addend = 0;
2555 }
2556
2557 *input_line_pointer = name_end;
2558
2559 demand_empty_rest_of_line ();
2560 }
2561
2562 /* Handle a .dim directive, used to give dimensions for an array. The
2563 arguments are comma separated numbers. mips-tfile assumes that
2564 there will not be more than 6 dimensions, and gdb won't read any
2565 more than that anyhow, so I will also make that assumption. */
2566
2567 void
2568 ecoff_directive_dim (ignore)
2569 int ignore;
2570 {
2571 int dimens[N_TQ];
2572 int i;
2573
2574 if (coff_sym_name == (char *) NULL)
2575 {
2576 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2577 demand_empty_rest_of_line ();
2578 return;
2579 }
2580
2581 for (i = 0; i < N_TQ; i++)
2582 {
2583 SKIP_WHITESPACE ();
2584 dimens[i] = get_absolute_expression ();
2585 if (*input_line_pointer == ',')
2586 ++input_line_pointer;
2587 else
2588 {
2589 if (*input_line_pointer != '\n'
2590 && *input_line_pointer != ';')
2591 as_warn (_("Badly formed .dim directive"));
2592 break;
2593 }
2594 }
2595
2596 if (i == N_TQ)
2597 --i;
2598
2599 /* The dimensions are stored away in reverse order. */
2600 for (; i >= 0; i--)
2601 {
2602 if (coff_type.num_dims >= N_TQ)
2603 {
2604 as_warn (_("Too many .dim entries"));
2605 break;
2606 }
2607 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2608 ++coff_type.num_dims;
2609 }
2610
2611 demand_empty_rest_of_line ();
2612 }
2613
2614 /* Handle a .scl directive, which sets the COFF storage class of the
2615 symbol. */
2616
2617 void
2618 ecoff_directive_scl (ignore)
2619 int ignore;
2620 {
2621 long val;
2622
2623 if (coff_sym_name == (char *) NULL)
2624 {
2625 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2626 demand_empty_rest_of_line ();
2627 return;
2628 }
2629
2630 val = get_absolute_expression ();
2631
2632 coff_symbol_typ = map_coff_sym_type[val];
2633 coff_storage_class = map_coff_storage[val];
2634
2635 demand_empty_rest_of_line ();
2636 }
2637
2638 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2639 .size can have multiple arguments. We humor it, although gcc will
2640 never generate more than one argument. */
2641
2642 void
2643 ecoff_directive_size (ignore)
2644 int ignore;
2645 {
2646 int sizes[N_TQ];
2647 int i;
2648
2649 if (coff_sym_name == (char *) NULL)
2650 {
2651 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2652 demand_empty_rest_of_line ();
2653 return;
2654 }
2655
2656 for (i = 0; i < N_TQ; i++)
2657 {
2658 SKIP_WHITESPACE ();
2659 sizes[i] = get_absolute_expression ();
2660 if (*input_line_pointer == ',')
2661 ++input_line_pointer;
2662 else
2663 {
2664 if (*input_line_pointer != '\n'
2665 && *input_line_pointer != ';')
2666 as_warn (_("Badly formed .size directive"));
2667 break;
2668 }
2669 }
2670
2671 if (i == N_TQ)
2672 --i;
2673
2674 /* The sizes are stored away in reverse order. */
2675 for (; i >= 0; i--)
2676 {
2677 if (coff_type.num_sizes >= N_TQ)
2678 {
2679 as_warn (_("Too many .size entries"));
2680 break;
2681 }
2682 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2683 ++coff_type.num_sizes;
2684 }
2685
2686 demand_empty_rest_of_line ();
2687 }
2688
2689 /* Handle the .type directive, which gives the COFF type of the
2690 symbol. */
2691
2692 void
2693 ecoff_directive_type (ignore)
2694 int ignore;
2695 {
2696 long val;
2697 tq_t *tq_ptr;
2698 tq_t *tq_shft;
2699
2700 if (coff_sym_name == (char *) NULL)
2701 {
2702 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2703 demand_empty_rest_of_line ();
2704 return;
2705 }
2706
2707 val = get_absolute_expression ();
2708
2709 coff_type.orig_type = BTYPE (val);
2710 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2711
2712 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2713 while (val & ~N_BTMASK)
2714 {
2715 if (tq_ptr == &coff_type.type_qualifiers[0])
2716 {
2717 /* FIXME: We could handle this by setting the continued bit.
2718 There would still be a limit: the .type argument can not
2719 be infinite. */
2720 as_warn (_("The type of %s is too complex; it will be simplified"),
2721 coff_sym_name);
2722 break;
2723 }
2724 if (ISPTR (val))
2725 *--tq_ptr = tq_Ptr;
2726 else if (ISFCN (val))
2727 *--tq_ptr = tq_Proc;
2728 else if (ISARY (val))
2729 *--tq_ptr = tq_Array;
2730 else
2731 as_fatal (_("Unrecognized .type argument"));
2732
2733 val = DECREF (val);
2734 }
2735
2736 tq_shft = &coff_type.type_qualifiers[0];
2737 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2738 *tq_shft++ = *tq_ptr++;
2739
2740 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2741 {
2742 /* If this is a function, ignore it, so that we don't get two
2743 entries (one from the .ent, and one for the .def that
2744 precedes it). Save the type information so that the end
2745 block can properly add it after the begin block index. For
2746 MIPS knows what reason, we must strip off the function type
2747 at this point. */
2748 coff_is_function = 1;
2749 tq_shft[-1] = tq_Nil;
2750 }
2751
2752 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2753 *tq_shft++ = tq_Nil;
2754
2755 demand_empty_rest_of_line ();
2756 }
2757
2758 /* Handle the .tag directive, which gives the name of a structure,
2759 union or enum. */
2760
2761 void
2762 ecoff_directive_tag (ignore)
2763 int ignore;
2764 {
2765 char *name;
2766 char name_end;
2767
2768 if (coff_sym_name == (char *) NULL)
2769 {
2770 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2771 demand_empty_rest_of_line ();
2772 return;
2773 }
2774
2775 name = input_line_pointer;
2776 name_end = get_symbol_end ();
2777
2778 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2779 strcpy (coff_tag, name);
2780
2781 *input_line_pointer = name_end;
2782
2783 demand_empty_rest_of_line ();
2784 }
2785
2786 /* Handle the .val directive, which gives the value of the symbol. It
2787 may be the name of a static or global symbol. */
2788
2789 void
2790 ecoff_directive_val (ignore)
2791 int ignore;
2792 {
2793 expressionS exp;
2794
2795 if (coff_sym_name == (char *) NULL)
2796 {
2797 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2798 demand_empty_rest_of_line ();
2799 return;
2800 }
2801
2802 expression (&exp);
2803 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2804 {
2805 as_bad (_(".val expression is too copmlex"));
2806 demand_empty_rest_of_line ();
2807 return;
2808 }
2809
2810 if (exp.X_op == O_constant)
2811 coff_value = exp.X_add_number;
2812 else
2813 {
2814 coff_sym_value = exp.X_add_symbol;
2815 coff_sym_addend = exp.X_add_number;
2816 }
2817
2818 demand_empty_rest_of_line ();
2819 }
2820
2821 /* Handle the .endef directive, which terminates processing of COFF
2822 debugging information for a symbol. */
2823
2824 void
2825 ecoff_directive_endef (ignore)
2826 int ignore;
2827 {
2828 char *name;
2829 symint_t indx;
2830 localsym_t *sym;
2831
2832 demand_empty_rest_of_line ();
2833
2834 if (coff_sym_name == (char *) NULL)
2835 {
2836 as_warn (_(".endef pseudo-op used before .def; ignored"));
2837 return;
2838 }
2839
2840 name = coff_sym_name;
2841 coff_sym_name = (char *) NULL;
2842
2843 /* If the symbol is a static or external, we have already gotten the
2844 appropriate type and class, so make sure we don't override those
2845 values. This is needed because there are some type and classes
2846 that are not in COFF, such as short data, etc. */
2847 if (coff_sym_value != (symbolS *) NULL)
2848 {
2849 coff_symbol_typ = st_Nil;
2850 coff_storage_class = sc_Nil;
2851 }
2852
2853 coff_type.extra_sizes = coff_tag != (char *) NULL;
2854 if (coff_type.num_dims > 0)
2855 {
2856 int diff = coff_type.num_dims - coff_type.num_sizes;
2857 int i = coff_type.num_dims - 1;
2858 int j;
2859
2860 if (coff_type.num_sizes != 1 || diff < 0)
2861 {
2862 as_warn (_("Bad COFF debugging info"));
2863 return;
2864 }
2865
2866 /* If this is an array, make sure the same number of dimensions
2867 and sizes were passed, creating extra sizes for multiply
2868 dimensioned arrays if not passed. */
2869 coff_type.extra_sizes = 0;
2870 if (diff)
2871 {
2872 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2873 while (j >= 0)
2874 {
2875 coff_type.sizes[j] = (((j - diff) >= 0)
2876 ? coff_type.sizes[j - diff]
2877 : 0);
2878 j--;
2879 }
2880
2881 coff_type.num_sizes = i + 1;
2882 for (i--; i >= 0; i--)
2883 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2884 ? 0
2885 : (coff_type.sizes[i + 1]
2886 / coff_type.dimensions[i + 1]));
2887 }
2888 }
2889 else if (coff_symbol_typ == st_Member
2890 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2891 {
2892 /* Is this a bitfield? This is indicated by a structure memeber
2893 having a size field that isn't an array. */
2894 coff_type.bitfield = 1;
2895 }
2896
2897 /* Except for enumeration members & begin/ending of scopes, put the
2898 type word in the aux. symbol table. */
2899 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2900 indx = 0;
2901 else if (coff_inside_enumeration)
2902 indx = cur_file_ptr->void_type;
2903 else
2904 {
2905 if (coff_type.basic_type == bt_Struct
2906 || coff_type.basic_type == bt_Union
2907 || coff_type.basic_type == bt_Enum)
2908 {
2909 if (coff_tag == (char *) NULL)
2910 {
2911 as_warn (_("No tag specified for %s"), name);
2912 return;
2913 }
2914
2915 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2916 coff_type.basic_type);
2917 }
2918
2919 if (coff_is_function)
2920 {
2921 last_func_type_info = coff_type;
2922 last_func_sym_value = coff_sym_value;
2923 return;
2924 }
2925
2926 indx = add_aux_sym_tir (&coff_type,
2927 hash_yes,
2928 &cur_file_ptr->thash_head[0]);
2929 }
2930
2931 /* Do any last minute adjustments that are necessary. */
2932 switch (coff_symbol_typ)
2933 {
2934 default:
2935 break;
2936
2937 /* For the beginning of structs, unions, and enumerations, the
2938 size info needs to be passed in the value field. */
2939 case st_Block:
2940 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2941 != 1)
2942 {
2943 as_warn (_("Bad COFF debugging information"));
2944 return;
2945 }
2946 else
2947 coff_value = coff_type.sizes[0];
2948
2949 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2950 break;
2951
2952 /* For the end of structs, unions, and enumerations, omit the
2953 name which is always ".eos". This needs to be done last, so
2954 that any error reporting above gives the correct name. */
2955 case st_End:
2956 free (name);
2957 name = (char *) NULL;
2958 coff_value = 0;
2959 coff_inside_enumeration = 0;
2960 break;
2961
2962 /* Members of structures and unions that aren't bitfields, need
2963 to adjust the value from a byte offset to a bit offset.
2964 Members of enumerations do not have the value adjusted, and
2965 can be distinguished by indx == indexNil. For enumerations,
2966 update the maximum enumeration value. */
2967 case st_Member:
2968 if (! coff_type.bitfield && ! coff_inside_enumeration)
2969 coff_value *= 8;
2970
2971 break;
2972 }
2973
2974 /* Add the symbol. */
2975 sym = add_ecoff_symbol (name,
2976 coff_symbol_typ,
2977 coff_storage_class,
2978 coff_sym_value,
2979 coff_sym_addend,
2980 (symint_t) coff_value,
2981 indx);
2982
2983 /* deal with struct, union, and enum tags. */
2984 if (coff_symbol_typ == st_Block)
2985 {
2986 /* Create or update the tag information. */
2987 tag_t *tag_ptr = get_tag (name,
2988 sym,
2989 coff_type.basic_type);
2990 forward_t **pf;
2991
2992 /* Remember any forward references. */
2993 for (pf = &sym->forward_ref;
2994 *pf != (forward_t *) NULL;
2995 pf = &(*pf)->next)
2996 ;
2997 *pf = tag_ptr->forward_ref;
2998 tag_ptr->forward_ref = (forward_t *) NULL;
2999 }
3000 }
3001 \f
3002 /* Parse .end directives. */
3003
3004 void
3005 ecoff_directive_end (ignore)
3006 int ignore;
3007 {
3008 char *name;
3009 char name_end;
3010 register int ch;
3011 symbolS *ent;
3012
3013 if (cur_file_ptr == (efdr_t *) NULL)
3014 {
3015 as_warn (_(".end directive without a preceding .file directive"));
3016 demand_empty_rest_of_line ();
3017 return;
3018 }
3019
3020 if (cur_proc_ptr == (proc_t *) NULL)
3021 {
3022 as_warn (_(".end directive without a preceding .ent directive"));
3023 demand_empty_rest_of_line ();
3024 return;
3025 }
3026
3027 name = input_line_pointer;
3028 name_end = get_symbol_end ();
3029
3030 ch = *name;
3031 if (! is_name_beginner (ch))
3032 {
3033 as_warn (_(".end directive has no name"));
3034 *input_line_pointer = name_end;
3035 demand_empty_rest_of_line ();
3036 return;
3037 }
3038
3039 /* The value is the distance between the .end directive and the
3040 corresponding symbol. We create a fake symbol to hold the
3041 current location, and put in the offset when we write out the
3042 symbol. */
3043 ent = symbol_find (name);
3044 if (ent == (symbolS *) NULL)
3045 as_warn (_(".end directive names unknown symbol"));
3046 else
3047 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3048 symbol_new ("L0\001", now_seg,
3049 (valueT) frag_now_fix (),
3050 frag_now),
3051 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3052
3053 cur_proc_ptr = (proc_t *) NULL;
3054
3055 *input_line_pointer = name_end;
3056 demand_empty_rest_of_line ();
3057 }
3058 \f
3059 /* Parse .ent directives. */
3060
3061 void
3062 ecoff_directive_ent (ignore)
3063 int ignore;
3064 {
3065 char *name;
3066 char name_end;
3067 register int ch;
3068
3069 if (cur_file_ptr == (efdr_t *) NULL)
3070 add_file ((const char *) NULL, 0, 1);
3071
3072 if (cur_proc_ptr != (proc_t *) NULL)
3073 {
3074 as_warn (_("second .ent directive found before .end directive"));
3075 demand_empty_rest_of_line ();
3076 return;
3077 }
3078
3079 name = input_line_pointer;
3080 name_end = get_symbol_end ();
3081
3082 ch = *name;
3083 if (! is_name_beginner (ch))
3084 {
3085 as_warn (_(".ent directive has no name"));
3086 *input_line_pointer = name_end;
3087 demand_empty_rest_of_line ();
3088 return;
3089 }
3090
3091 add_procedure (name);
3092
3093 *input_line_pointer = name_end;
3094
3095 /* The .ent directive is sometimes followed by a number. I'm not
3096 really sure what the number means. I don't see any way to store
3097 the information in the PDR. The Irix 4 assembler seems to ignore
3098 the information. */
3099 SKIP_WHITESPACE ();
3100 if (*input_line_pointer == ',')
3101 {
3102 ++input_line_pointer;
3103 SKIP_WHITESPACE ();
3104 }
3105 if (isdigit ((unsigned char) *input_line_pointer)
3106 || *input_line_pointer == '-')
3107 (void) get_absolute_expression ();
3108
3109 demand_empty_rest_of_line ();
3110 }
3111 \f
3112 /* Parse .extern directives. */
3113
3114 void
3115 ecoff_directive_extern (ignore)
3116 int ignore;
3117 {
3118 char *name;
3119 int c;
3120 symbolS *symbolp;
3121 valueT size;
3122
3123 name = input_line_pointer;
3124 c = get_symbol_end ();
3125 symbolp = symbol_find_or_make (name);
3126 *input_line_pointer = c;
3127
3128 S_SET_EXTERNAL (symbolp);
3129
3130 if (*input_line_pointer == ',')
3131 ++input_line_pointer;
3132 size = get_absolute_expression ();
3133
3134 symbol_get_obj (symbolp)->ecoff_extern_size = size;
3135 }
3136 \f
3137 /* Parse .file directives. */
3138
3139 void
3140 ecoff_directive_file (ignore)
3141 int ignore;
3142 {
3143 int indx;
3144 char *name;
3145 int len;
3146
3147 if (cur_proc_ptr != (proc_t *) NULL)
3148 {
3149 as_warn (_("No way to handle .file within .ent/.end section"));
3150 demand_empty_rest_of_line ();
3151 return;
3152 }
3153
3154 indx = (int) get_absolute_expression ();
3155
3156 /* FIXME: we don't have to save the name here. */
3157 name = demand_copy_C_string (&len);
3158
3159 add_file (name, indx - 1, 0);
3160
3161 demand_empty_rest_of_line ();
3162 }
3163 \f
3164 /* Parse .fmask directives. */
3165
3166 void
3167 ecoff_directive_fmask (ignore)
3168 int ignore;
3169 {
3170 long val;
3171
3172 if (cur_proc_ptr == (proc_t *) NULL)
3173 {
3174 as_warn (_(".fmask outside of .ent"));
3175 demand_empty_rest_of_line ();
3176 return;
3177 }
3178
3179 if (get_absolute_expression_and_terminator (&val) != ',')
3180 {
3181 as_warn (_("Bad .fmask directive"));
3182 --input_line_pointer;
3183 demand_empty_rest_of_line ();
3184 return;
3185 }
3186
3187 cur_proc_ptr->pdr.fregmask = val;
3188 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3189
3190 demand_empty_rest_of_line ();
3191 }
3192 \f
3193 /* Parse .frame directives. */
3194
3195 void
3196 ecoff_directive_frame (ignore)
3197 int ignore;
3198 {
3199 long val;
3200
3201 if (cur_proc_ptr == (proc_t *) NULL)
3202 {
3203 as_warn (_(".frame outside of .ent"));
3204 demand_empty_rest_of_line ();
3205 return;
3206 }
3207
3208 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3209
3210 SKIP_WHITESPACE ();
3211 if (*input_line_pointer++ != ','
3212 || get_absolute_expression_and_terminator (&val) != ',')
3213 {
3214 as_warn (_("Bad .frame directive"));
3215 --input_line_pointer;
3216 demand_empty_rest_of_line ();
3217 return;
3218 }
3219
3220 cur_proc_ptr->pdr.frameoffset = val;
3221
3222 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3223
3224 #if 0
3225 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according to
3226 Sandro. I don't yet know where this value should be stored, if
3227 anywhere. */
3228 demand_empty_rest_of_line ();
3229 #else
3230 s_ignore (42);
3231 #endif
3232 }
3233 \f
3234 /* Parse .mask directives. */
3235
3236 void
3237 ecoff_directive_mask (ignore)
3238 int ignore;
3239 {
3240 long val;
3241
3242 if (cur_proc_ptr == (proc_t *) NULL)
3243 {
3244 as_warn (_(".mask outside of .ent"));
3245 demand_empty_rest_of_line ();
3246 return;
3247 }
3248
3249 if (get_absolute_expression_and_terminator (&val) != ',')
3250 {
3251 as_warn (_("Bad .mask directive"));
3252 --input_line_pointer;
3253 demand_empty_rest_of_line ();
3254 return;
3255 }
3256
3257 cur_proc_ptr->pdr.regmask = val;
3258 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3259
3260 demand_empty_rest_of_line ();
3261 }
3262 \f
3263 /* Parse .loc directives. */
3264
3265 void
3266 ecoff_directive_loc (ignore)
3267 int ignore;
3268 {
3269 lineno_list_t *list;
3270 symint_t lineno;
3271
3272 if (cur_file_ptr == (efdr_t *) NULL)
3273 {
3274 as_warn (_(".loc before .file"));
3275 demand_empty_rest_of_line ();
3276 return;
3277 }
3278
3279 if (now_seg != text_section)
3280 {
3281 as_warn (_(".loc outside of .text"));
3282 demand_empty_rest_of_line ();
3283 return;
3284 }
3285
3286 /* Skip the file number. */
3287 SKIP_WHITESPACE ();
3288 get_absolute_expression ();
3289 SKIP_WHITESPACE ();
3290
3291 lineno = get_absolute_expression ();
3292
3293 #ifndef NO_LISTING
3294 if (listing)
3295 listing_source_line (lineno);
3296 #endif
3297
3298 /* If we're building stabs, then output a special label rather than
3299 ECOFF line number info. */
3300 if (stabs_seen)
3301 {
3302 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3303 symbol_new ("L0\001", now_seg,
3304 (valueT) frag_now_fix (),
3305 frag_now),
3306 (bfd_vma) 0, 0, lineno);
3307 return;
3308 }
3309
3310 list = allocate_lineno_list ();
3311
3312 list->next = (lineno_list_t *) NULL;
3313 list->file = cur_file_ptr;
3314 list->proc = cur_proc_ptr;
3315 list->frag = frag_now;
3316 list->paddr = frag_now_fix ();
3317 list->lineno = lineno;
3318
3319 /* We don't want to merge files which have line numbers. */
3320 cur_file_ptr->fdr.fMerge = 0;
3321
3322 /* A .loc directive will sometimes appear before a .ent directive,
3323 which means that cur_proc_ptr will be NULL here. Arrange to
3324 patch this up. */
3325 if (cur_proc_ptr == (proc_t *) NULL)
3326 {
3327 lineno_list_t **pl;
3328
3329 pl = &noproc_lineno;
3330 while (*pl != (lineno_list_t *) NULL)
3331 pl = &(*pl)->next;
3332 *pl = list;
3333 }
3334 else
3335 {
3336 last_lineno = list;
3337 *last_lineno_ptr = list;
3338 last_lineno_ptr = &list->next;
3339 }
3340 }
3341
3342 /* The MIPS assembler sometimes inserts nop instructions in the
3343 instruction stream. When this happens, we must patch up the .loc
3344 information so that it points to the instruction after the nop. */
3345
3346 void
3347 ecoff_fix_loc (old_frag, old_frag_offset)
3348 fragS *old_frag;
3349 unsigned long old_frag_offset;
3350 {
3351 if (last_lineno != NULL
3352 && last_lineno->frag == old_frag
3353 && last_lineno->paddr == old_frag_offset)
3354 {
3355 last_lineno->frag = frag_now;
3356 last_lineno->paddr = frag_now_fix ();
3357 }
3358 }
3359 \f
3360 /* Make sure the @stabs symbol is emitted. */
3361
3362 static void
3363 mark_stabs (ignore)
3364 int ignore;
3365 {
3366 if (! stabs_seen)
3367 {
3368 /* Add a dummy @stabs dymbol. */
3369 stabs_seen = 1;
3370 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3371 (symbolS *) NULL,
3372 (bfd_vma) 0, (symint_t) -1,
3373 ECOFF_MARK_STAB (0));
3374 }
3375 }
3376 \f
3377 /* Parse .weakext directives. */
3378 #ifndef TC_MIPS
3379 /* For TC_MIPS use the version in tc-mips.c. */
3380 void
3381 ecoff_directive_weakext (ignore)
3382 int ignore;
3383 {
3384 char *name;
3385 int c;
3386 symbolS *symbolP;
3387 expressionS exp;
3388
3389 name = input_line_pointer;
3390 c = get_symbol_end ();
3391 symbolP = symbol_find_or_make (name);
3392 *input_line_pointer = c;
3393
3394 SKIP_WHITESPACE ();
3395
3396 if (*input_line_pointer == ',')
3397 {
3398 if (S_IS_DEFINED (symbolP))
3399 {
3400 as_bad (_("Ignoring attempt to redefine symbol `%s'."),
3401 S_GET_NAME (symbolP));
3402 ignore_rest_of_line ();
3403 return;
3404 }
3405
3406 ++input_line_pointer;
3407 SKIP_WHITESPACE ();
3408 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3409 {
3410 expression (&exp);
3411 if (exp.X_op != O_symbol)
3412 {
3413 as_bad (_("bad .weakext directive"));
3414 ignore_rest_of_line ();
3415 return;
3416 }
3417 symbol_set_value_expression (symbolP, &exp);
3418 }
3419 }
3420
3421 S_SET_WEAK (symbolP);
3422
3423 demand_empty_rest_of_line ();
3424 }
3425 #endif /* not TC_MIPS */
3426 \f
3427 /* Handle .stabs directives. The actual parsing routine is done by a
3428 generic routine. This routine is called via OBJ_PROCESS_STAB.
3429 When this is called, input_line_pointer will be pointing at the
3430 value field of the stab.
3431
3432 .stabs directives have five fields:
3433 "string" a string, encoding the type information.
3434 code a numeric code, defined in <stab.h>
3435 0 a zero
3436 desc a zero or line number
3437 value a numeric value or an address.
3438
3439 If the value is relocatable, we transform this into:
3440 iss points as an index into string space
3441 value value from lookup of the name
3442 st st from lookup of the name
3443 sc sc from lookup of the name
3444 index code|CODE_MASK
3445
3446 If the value is not relocatable, we transform this into:
3447 iss points as an index into string space
3448 value value
3449 st st_Nil
3450 sc sc_Nil
3451 index code|CODE_MASK
3452
3453 .stabn directives have four fields (string is null):
3454 code a numeric code, defined in <stab.h>
3455 0 a zero
3456 desc a zero or a line number
3457 value a numeric value or an address. */
3458
3459 void
3460 ecoff_stab (sec, what, string, type, other, desc)
3461 segT sec;
3462 int what;
3463 const char *string;
3464 int type;
3465 int other;
3466 int desc;
3467 {
3468 efdr_t *save_file_ptr = cur_file_ptr;
3469 symbolS *sym;
3470 symint_t value;
3471 bfd_vma addend;
3472 st_t st;
3473 sc_t sc;
3474 symint_t indx;
3475 localsym_t *hold = NULL;
3476
3477 ecoff_debugging_seen = 1;
3478
3479 /* We don't handle .stabd. */
3480 if (what != 's' && what != 'n')
3481 {
3482 as_bad (_(".stab%c is not supported"), what);
3483 return;
3484 }
3485
3486 /* A .stabn uses a null name, not an empty string. */
3487 if (what == 'n')
3488 string = NULL;
3489
3490 /* We ignore the other field. */
3491 if (other != 0)
3492 as_warn (_(".stab%c: ignoring non-zero other field"), what);
3493
3494 /* Make sure we have a current file. */
3495 if (cur_file_ptr == (efdr_t *) NULL)
3496 {
3497 add_file ((const char *) NULL, 0, 1);
3498 save_file_ptr = cur_file_ptr;
3499 }
3500
3501 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3502 signal to gdb. */
3503 if (stabs_seen == 0)
3504 mark_stabs (0);
3505
3506 /* Line number stabs are handled differently, since they have two
3507 values, the line number and the address of the label. We use the
3508 index field (aka desc) to hold the line number, and the value
3509 field to hold the address. The symbol type is st_Label, which
3510 should be different from the other stabs, so that gdb can
3511 recognize it. */
3512 if (type == N_SLINE)
3513 {
3514 SYMR dummy_symr;
3515 char *name;
3516 char name_end;
3517
3518 #ifndef NO_LISTING
3519 if (listing)
3520 listing_source_line ((unsigned int) desc);
3521 #endif
3522
3523 dummy_symr.index = desc;
3524 if (dummy_symr.index != desc)
3525 {
3526 as_warn (_("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3527 desc, what);
3528 return;
3529 }
3530
3531 name = input_line_pointer;
3532 name_end = get_symbol_end ();
3533
3534 sym = symbol_find_or_make (name);
3535 *input_line_pointer = name_end;
3536
3537 value = 0;
3538 addend = 0;
3539 st = st_Label;
3540 sc = sc_Text;
3541 indx = desc;
3542 }
3543 else
3544 {
3545 #ifndef NO_LISTING
3546 if (listing && (type == N_SO || type == N_SOL))
3547 listing_source_file (string);
3548 #endif
3549
3550 if (isdigit ((unsigned char) *input_line_pointer)
3551 || *input_line_pointer == '-'
3552 || *input_line_pointer == '+')
3553 {
3554 st = st_Nil;
3555 sc = sc_Nil;
3556 sym = (symbolS *) NULL;
3557 value = get_absolute_expression ();
3558 addend = 0;
3559 }
3560 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3561 {
3562 as_warn (_("Illegal .stab%c directive, bad character"), what);
3563 return;
3564 }
3565 else
3566 {
3567 expressionS exp;
3568
3569 sc = sc_Nil;
3570 st = st_Nil;
3571
3572 expression (&exp);
3573 if (exp.X_op == O_constant)
3574 {
3575 sym = NULL;
3576 value = exp.X_add_number;
3577 addend = 0;
3578 }
3579 else if (exp.X_op == O_symbol)
3580 {
3581 sym = exp.X_add_symbol;
3582 value = 0;
3583 addend = exp.X_add_number;
3584 }
3585 else
3586 {
3587 sym = make_expr_symbol (&exp);
3588 value = 0;
3589 addend = 0;
3590 }
3591 }
3592
3593 indx = ECOFF_MARK_STAB (type);
3594 }
3595
3596 /* Don't store the stabs symbol we are creating as the type of the
3597 ECOFF symbol. We want to compute the type of the ECOFF symbol
3598 independently. */
3599 if (sym != (symbolS *) NULL)
3600 hold = symbol_get_obj (sym)->ecoff_symbol;
3601
3602 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3603
3604 if (sym != (symbolS *) NULL)
3605 symbol_get_obj (sym)->ecoff_symbol = hold;
3606
3607 /* Restore normal file type. */
3608 cur_file_ptr = save_file_ptr;
3609 }
3610 \f
3611 /* Frob an ECOFF symbol. Small common symbols go into a special
3612 .scommon section rather than bfd_com_section. */
3613
3614 void
3615 ecoff_frob_symbol (sym)
3616 symbolS *sym;
3617 {
3618 if (S_IS_COMMON (sym)
3619 && S_GET_VALUE (sym) > 0
3620 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3621 {
3622 static asection scom_section;
3623 static asymbol scom_symbol;
3624
3625 /* We must construct a fake section similar to bfd_com_section
3626 but with the name .scommon. */
3627 if (scom_section.name == NULL)
3628 {
3629 scom_section = bfd_com_section;
3630 scom_section.name = ".scommon";
3631 scom_section.output_section = &scom_section;
3632 scom_section.symbol = &scom_symbol;
3633 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3634 scom_symbol = *bfd_com_section.symbol;
3635 scom_symbol.name = ".scommon";
3636 scom_symbol.section = &scom_section;
3637 }
3638 S_SET_SEGMENT (sym, &scom_section);
3639 }
3640
3641 /* Double check weak symbols. */
3642 if (S_IS_WEAK (sym))
3643 {
3644 if (S_IS_COMMON (sym))
3645 as_bad (_("Symbol `%s' can not be both weak and common"),
3646 S_GET_NAME (sym));
3647 }
3648 }
3649 \f
3650 /* Add bytes to the symbolic information buffer. */
3651
3652 static char *
3653 ecoff_add_bytes (buf, bufend, bufptr, need)
3654 char **buf;
3655 char **bufend;
3656 char *bufptr;
3657 unsigned long need;
3658 {
3659 unsigned long at;
3660 unsigned long want;
3661
3662 at = bufptr - *buf;
3663 need -= *bufend - bufptr;
3664 if (need < PAGE_SIZE)
3665 need = PAGE_SIZE;
3666 want = (*bufend - *buf) + need;
3667 *buf = xrealloc (*buf, want);
3668 *bufend = *buf + want;
3669 return *buf + at;
3670 }
3671
3672 /* Adjust the symbolic information buffer to the alignment required
3673 for the ECOFF target debugging information. */
3674
3675 static unsigned long
3676 ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3677 const struct ecoff_debug_swap *backend;
3678 char **buf;
3679 char **bufend;
3680 unsigned long offset;
3681 char **bufptrptr;
3682 {
3683 bfd_size_type align;
3684
3685 align = backend->debug_align;
3686 if ((offset & (align - 1)) != 0)
3687 {
3688 unsigned long add;
3689
3690 add = align - (offset & (align - 1));
3691 if (*bufend - (*buf + offset) < add)
3692 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3693 memset (*buf + offset, 0, add);
3694 offset += add;
3695 if (bufptrptr != (char **) NULL)
3696 *bufptrptr = *buf + offset;
3697 }
3698
3699 return offset;
3700 }
3701
3702 /* Build the line number information. */
3703
3704 static unsigned long
3705 ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3706 const struct ecoff_debug_swap *backend;
3707 char **buf;
3708 char **bufend;
3709 unsigned long offset;
3710 long *linecntptr;
3711 {
3712 char *bufptr;
3713 register lineno_list_t *l;
3714 lineno_list_t *last;
3715 efdr_t *file;
3716 proc_t *proc;
3717 unsigned long c;
3718 long iline;
3719 long totcount;
3720 lineno_list_t first;
3721 lineno_list_t *local_first_lineno = first_lineno;
3722
3723 if (linecntptr != (long *) NULL)
3724 *linecntptr = 0;
3725
3726 bufptr = *buf + offset;
3727
3728 file = (efdr_t *) NULL;
3729 proc = (proc_t *) NULL;
3730 last = (lineno_list_t *) NULL;
3731 c = offset;
3732 iline = 0;
3733 totcount = 0;
3734
3735 /* For some reason the address of the first procedure is ignored
3736 when reading line numbers. This doesn't matter if the address of
3737 the first procedure is 0, but when gcc is generating MIPS
3738 embedded PIC code, it will put strings in the .text section
3739 before the first procedure. We cope by inserting a dummy line if
3740 the address of the first procedure is not 0. Hopefully this
3741 won't screw things up too badly.
3742
3743 Don't do this for ECOFF assembly source line numbers. They work
3744 without this extra attention. */
3745 if (debug_type != DEBUG_ECOFF
3746 && first_proc_ptr != (proc_t *) NULL
3747 && local_first_lineno != (lineno_list_t *) NULL
3748 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3749 + bfd_get_section_vma (stdoutput,
3750 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3751 != 0))
3752 {
3753 first.file = local_first_lineno->file;
3754 first.proc = local_first_lineno->proc;
3755 first.frag = &zero_address_frag;
3756 first.paddr = 0;
3757 first.lineno = 0;
3758
3759 first.next = local_first_lineno;
3760 local_first_lineno = &first;
3761 }
3762
3763 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3764 {
3765 long count;
3766 long delta;
3767
3768 /* Get the offset to the memory address of the next line number
3769 (in words). Do this first, so that we can skip ahead to the
3770 next useful line number entry. */
3771 if (l->next == (lineno_list_t *) NULL)
3772 {
3773 /* We want a count of zero, but it will be decremented
3774 before it is used. */
3775 count = 1;
3776 }
3777 else if (l->next->frag->fr_address + l->next->paddr
3778 > l->frag->fr_address + l->paddr)
3779 {
3780 count = ((l->next->frag->fr_address + l->next->paddr
3781 - (l->frag->fr_address + l->paddr))
3782 >> 2);
3783 }
3784 else
3785 {
3786 /* Don't change last, so we still get the right delta. */
3787 continue;
3788 }
3789
3790 if (l->file != file || l->proc != proc)
3791 {
3792 if (l->proc != proc && proc != (proc_t *) NULL)
3793 proc->pdr.lnHigh = last->lineno;
3794 if (l->file != file && file != (efdr_t *) NULL)
3795 {
3796 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3797 file->fdr.cline = totcount + count;
3798 if (linecntptr != (long *) NULL)
3799 *linecntptr += totcount + count;
3800 totcount = 0;
3801 }
3802
3803 if (l->file != file)
3804 {
3805 efdr_t *last_file = file;
3806
3807 file = l->file;
3808 if (last_file != (efdr_t *) NULL)
3809 file->fdr.ilineBase
3810 = last_file->fdr.ilineBase + last_file->fdr.cline;
3811 else
3812 file->fdr.ilineBase = 0;
3813 file->fdr.cbLineOffset = c;
3814 }
3815 if (l->proc != proc)
3816 {
3817 proc = l->proc;
3818 if (proc != (proc_t *) NULL)
3819 {
3820 proc->pdr.lnLow = l->lineno;
3821 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3822 proc->pdr.iline = totcount;
3823 }
3824 }
3825
3826 last = (lineno_list_t *) NULL;
3827 }
3828
3829 totcount += count;
3830
3831 /* Get the offset to this line number. */
3832 if (last == (lineno_list_t *) NULL)
3833 delta = 0;
3834 else
3835 delta = l->lineno - last->lineno;
3836
3837 /* Put in the offset to this line number. */
3838 while (delta != 0)
3839 {
3840 int setcount;
3841
3842 /* 1 is added to each count read. */
3843 --count;
3844 /* We can only adjust the word count by up to 15 words at a
3845 time. */
3846 if (count <= 0x0f)
3847 {
3848 setcount = count;
3849 count = 0;
3850 }
3851 else
3852 {
3853 setcount = 0x0f;
3854 count -= 0x0f;
3855 }
3856 if (delta >= -7 && delta <= 7)
3857 {
3858 if (bufptr >= *bufend)
3859 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3860 *bufptr++ = setcount + (delta << 4);
3861 delta = 0;
3862 ++c;
3863 }
3864 else
3865 {
3866 int set;
3867
3868 if (*bufend - bufptr < 3)
3869 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3870 *bufptr++ = setcount + (8 << 4);
3871 if (delta < -0x8000)
3872 {
3873 set = -0x8000;
3874 delta += 0x8000;
3875 }
3876 else if (delta > 0x7fff)
3877 {
3878 set = 0x7fff;
3879 delta -= 0x7fff;
3880 }
3881 else
3882 {
3883 set = delta;
3884 delta = 0;
3885 }
3886 *bufptr++ = set >> 8;
3887 *bufptr++ = set & 0xffff;
3888 c += 3;
3889 }
3890 }
3891
3892 /* Finish adjusting the count. */
3893 while (count > 0)
3894 {
3895 if (bufptr >= *bufend)
3896 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3897 /* 1 is added to each count read. */
3898 --count;
3899 if (count > 0x0f)
3900 {
3901 *bufptr++ = 0x0f;
3902 count -= 0x0f;
3903 }
3904 else
3905 {
3906 *bufptr++ = count;
3907 count = 0;
3908 }
3909 ++c;
3910 }
3911
3912 ++iline;
3913 last = l;
3914 }
3915
3916 if (proc != (proc_t *) NULL)
3917 proc->pdr.lnHigh = last->lineno;
3918 if (file != (efdr_t *) NULL)
3919 {
3920 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3921 file->fdr.cline = totcount;
3922 }
3923
3924 if (linecntptr != (long *) NULL)
3925 *linecntptr += totcount;
3926
3927 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3928
3929 return c;
3930 }
3931
3932 /* Build and swap out the symbols. */
3933
3934 static unsigned long
3935 ecoff_build_symbols (backend, buf, bufend, offset)
3936 const struct ecoff_debug_swap *backend;
3937 char **buf;
3938 char **bufend;
3939 unsigned long offset;
3940 {
3941 const bfd_size_type external_sym_size = backend->external_sym_size;
3942 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3943 = backend->swap_sym_out;
3944 char *sym_out;
3945 long isym;
3946 vlinks_t *file_link;
3947
3948 sym_out = *buf + offset;
3949
3950 isym = 0;
3951
3952 /* The symbols are stored by file. */
3953 for (file_link = file_desc.first;
3954 file_link != (vlinks_t *) NULL;
3955 file_link = file_link->next)
3956 {
3957 int ifilesym;
3958 int fil_cnt;
3959 efdr_t *fil_ptr;
3960 efdr_t *fil_end;
3961
3962 if (file_link->next == (vlinks_t *) NULL)
3963 fil_cnt = file_desc.objects_last_page;
3964 else
3965 fil_cnt = file_desc.objects_per_page;
3966 fil_ptr = file_link->datum->file;
3967 fil_end = fil_ptr + fil_cnt;
3968 for (; fil_ptr < fil_end; fil_ptr++)
3969 {
3970 vlinks_t *sym_link;
3971
3972 fil_ptr->fdr.isymBase = isym;
3973 ifilesym = isym;
3974 for (sym_link = fil_ptr->symbols.first;
3975 sym_link != (vlinks_t *) NULL;
3976 sym_link = sym_link->next)
3977 {
3978 int sym_cnt;
3979 localsym_t *sym_ptr;
3980 localsym_t *sym_end;
3981
3982 if (sym_link->next == (vlinks_t *) NULL)
3983 sym_cnt = fil_ptr->symbols.objects_last_page;
3984 else
3985 sym_cnt = fil_ptr->symbols.objects_per_page;
3986 sym_ptr = sym_link->datum->sym;
3987 sym_end = sym_ptr + sym_cnt;
3988 for (; sym_ptr < sym_end; sym_ptr++)
3989 {
3990 int local;
3991 symbolS *as_sym;
3992 forward_t *f;
3993
3994 know (sym_ptr->file_ptr == fil_ptr);
3995
3996 /* If there is no associated gas symbol, then this
3997 is a pure debugging symbol. We have already
3998 added the name (if any) to fil_ptr->strings.
3999 Otherwise we must decide whether this is an
4000 external or a local symbol (actually, it may be
4001 both if the local provides additional debugging
4002 information for the external). */
4003 local = 1;
4004 as_sym = sym_ptr->as_sym;
4005 if (as_sym != (symbolS *) NULL)
4006 {
4007 symint_t indx;
4008
4009 /* The value of a block start symbol is the
4010 offset from the start of the procedure. For
4011 other symbols we just use the gas value (but
4012 we must offset it by the vma of the section,
4013 just as BFD does, because BFD will not see
4014 this value). */
4015 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4016 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4017 {
4018 symbolS *begin_sym;
4019
4020 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4021 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4022 if (S_GET_SEGMENT (as_sym)
4023 != S_GET_SEGMENT (begin_sym))
4024 as_warn (_(".begin/.bend in different segments"));
4025 sym_ptr->ecoff_sym.asym.value =
4026 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4027 }
4028 else
4029 sym_ptr->ecoff_sym.asym.value =
4030 (S_GET_VALUE (as_sym)
4031 + bfd_get_section_vma (stdoutput,
4032 S_GET_SEGMENT (as_sym))
4033 + sym_ptr->addend);
4034
4035 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4036
4037 /* Set st_Proc to st_StaticProc for local
4038 functions. */
4039 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4040 && S_IS_DEFINED (as_sym)
4041 && ! S_IS_EXTERNAL (as_sym)
4042 && ! S_IS_WEAK (as_sym))
4043 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4044
4045 /* Get the type and storage class based on where
4046 the symbol actually wound up. Traditionally,
4047 N_LBRAC and N_RBRAC are *not* relocated. */
4048 indx = sym_ptr->ecoff_sym.asym.index;
4049 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4050 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4051 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4052 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4053 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4054 {
4055 segT seg;
4056 const char *segname;
4057 st_t st;
4058 sc_t sc;
4059
4060 seg = S_GET_SEGMENT (as_sym);
4061 segname = segment_name (seg);
4062
4063 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4064 && (S_IS_EXTERNAL (as_sym)
4065 || S_IS_WEAK (as_sym)
4066 || ! S_IS_DEFINED (as_sym)))
4067 {
4068 if ((symbol_get_bfdsym (as_sym)->flags
4069 & BSF_FUNCTION) != 0)
4070 st = st_Proc;
4071 else
4072 st = st_Global;
4073 }
4074 else if (seg == text_section)
4075 st = st_Label;
4076 else
4077 st = st_Static;
4078
4079 if (! S_IS_DEFINED (as_sym))
4080 {
4081 valueT s;
4082
4083 s = symbol_get_obj (as_sym)->ecoff_extern_size;
4084 if (s == 0
4085 || s > bfd_get_gp_size (stdoutput))
4086 sc = sc_Undefined;
4087 else
4088 {
4089 sc = sc_SUndefined;
4090 sym_ptr->ecoff_sym.asym.value = s;
4091 }
4092 #ifdef S_SET_SIZE
4093 S_SET_SIZE (as_sym, s);
4094 #endif
4095 }
4096 else if (S_IS_COMMON (as_sym))
4097 {
4098 if (S_GET_VALUE (as_sym) > 0
4099 && (S_GET_VALUE (as_sym)
4100 <= bfd_get_gp_size (stdoutput)))
4101 sc = sc_SCommon;
4102 else
4103 sc = sc_Common;
4104 }
4105 else if (seg == text_section)
4106 sc = sc_Text;
4107 else if (seg == data_section)
4108 sc = sc_Data;
4109 else if (strcmp (segname, ".rdata") == 0
4110 || strcmp (segname, ".rodata") == 0)
4111 sc = sc_RData;
4112 else if (strcmp (segname, ".sdata") == 0)
4113 sc = sc_SData;
4114 else if (seg == bss_section)
4115 sc = sc_Bss;
4116 else if (strcmp (segname, ".sbss") == 0)
4117 sc = sc_SBss;
4118 else if (seg == &bfd_abs_section)
4119 sc = sc_Abs;
4120 else
4121 {
4122 /* This must be a user named section.
4123 This is not possible in ECOFF, but it
4124 is in ELF. */
4125 sc = sc_Data;
4126 }
4127
4128 sym_ptr->ecoff_sym.asym.st = (int) st;
4129 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4130 }
4131
4132 /* This is just an external symbol if it is
4133 outside a procedure and it has a type.
4134 FIXME: g++ will generate symbols which have
4135 different names in the debugging information
4136 than the actual symbol. Should we handle
4137 them here? */
4138 if ((S_IS_EXTERNAL (as_sym)
4139 || S_IS_WEAK (as_sym)
4140 || ! S_IS_DEFINED (as_sym))
4141 && sym_ptr->proc_ptr == (proc_t *) NULL
4142 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4143 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4144 local = 0;
4145
4146 /* This is just an external symbol if it is a
4147 common symbol. */
4148 if (S_IS_COMMON (as_sym))
4149 local = 0;
4150
4151 /* If an st_end symbol has an associated gas
4152 symbol, then it is a local label created for
4153 a .bend or .end directive. Stabs line
4154 numbers will have \001 in the names. */
4155 if (local
4156 && sym_ptr->ecoff_sym.asym.st != st_End
4157 && strchr (sym_ptr->name, '\001') == 0)
4158 sym_ptr->ecoff_sym.asym.iss =
4159 add_string (&fil_ptr->strings,
4160 fil_ptr->str_hash,
4161 sym_ptr->name,
4162 (shash_t **) NULL);
4163 }
4164
4165 /* We now know the index of this symbol; fill in
4166 locations that have been waiting for that
4167 information. */
4168 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4169 {
4170 localsym_t *begin_ptr;
4171 st_t begin_type;
4172
4173 know (local);
4174 begin_ptr = sym_ptr->begin_ptr;
4175 know (begin_ptr->sym_index != -1);
4176 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4177 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4178 sym_ptr->ecoff_sym.asym.iss =
4179 begin_ptr->ecoff_sym.asym.iss;
4180
4181 begin_type = begin_ptr->ecoff_sym.asym.st;
4182 if (begin_type == st_File
4183 || begin_type == st_Block)
4184 {
4185 begin_ptr->ecoff_sym.asym.index =
4186 isym - ifilesym + 1;
4187 (*swap_sym_out) (stdoutput,
4188 &begin_ptr->ecoff_sym.asym,
4189 (*buf
4190 + offset
4191 + (begin_ptr->sym_index
4192 * external_sym_size)));
4193 }
4194 else
4195 {
4196 know (begin_ptr->index_ptr != (aux_t *) NULL);
4197 begin_ptr->index_ptr->data.isym =
4198 isym - ifilesym + 1;
4199 }
4200
4201 /* The value of the symbol marking the end of a
4202 procedure is the size of the procedure. The
4203 value of the symbol marking the end of a
4204 block is the offset from the start of the
4205 procedure to the block. */
4206 if (begin_type == st_Proc
4207 || begin_type == st_StaticProc)
4208 {
4209 know (as_sym != (symbolS *) NULL);
4210 know (begin_ptr->as_sym != (symbolS *) NULL);
4211 if (S_GET_SEGMENT (as_sym)
4212 != S_GET_SEGMENT (begin_ptr->as_sym))
4213 as_warn (_(".begin/.bend in different segments"));
4214 sym_ptr->ecoff_sym.asym.value =
4215 (S_GET_VALUE (as_sym)
4216 - S_GET_VALUE (begin_ptr->as_sym));
4217
4218 /* If the size is odd, this is probably a
4219 mips16 function; force it to be even. */
4220 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4221 ++sym_ptr->ecoff_sym.asym.value;
4222
4223 #ifdef S_SET_SIZE
4224 S_SET_SIZE (begin_ptr->as_sym,
4225 sym_ptr->ecoff_sym.asym.value);
4226 #endif
4227 }
4228 else if (begin_type == st_Block
4229 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4230 {
4231 symbolS *begin_sym;
4232
4233 know (as_sym != (symbolS *) NULL);
4234 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4235 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4236 if (S_GET_SEGMENT (as_sym)
4237 != S_GET_SEGMENT (begin_sym))
4238 as_warn (_(".begin/.bend in different segments"));
4239 sym_ptr->ecoff_sym.asym.value =
4240 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4241 }
4242 }
4243
4244 for (f = sym_ptr->forward_ref;
4245 f != (forward_t *) NULL;
4246 f = f->next)
4247 {
4248 know (local);
4249 f->ifd_ptr->data.isym = fil_ptr->file_index;
4250 f->index_ptr->data.rndx.index = isym - ifilesym;
4251 }
4252
4253 if (local)
4254 {
4255 if (*bufend - sym_out < external_sym_size)
4256 sym_out = ecoff_add_bytes (buf, bufend,
4257 sym_out,
4258 external_sym_size);
4259 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4260 sym_out);
4261 sym_out += external_sym_size;
4262
4263 sym_ptr->sym_index = isym;
4264
4265 if (sym_ptr->proc_ptr != (proc_t *) NULL
4266 && sym_ptr->proc_ptr->sym == sym_ptr)
4267 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4268
4269 ++isym;
4270 }
4271
4272 /* Record the local symbol index and file number in
4273 case this is an external symbol. Note that this
4274 destroys the asym.index field. */
4275 if (as_sym != (symbolS *) NULL
4276 && symbol_get_obj (as_sym)->ecoff_symbol == sym_ptr)
4277 {
4278 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4279 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4280 && local)
4281 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4282 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4283
4284 /* Don't try to merge an FDR which has an
4285 external symbol attached to it. */
4286 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4287 fil_ptr->fdr.fMerge = 0;
4288 }
4289 }
4290 }
4291 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4292 }
4293 }
4294
4295 return offset + isym * external_sym_size;
4296 }
4297
4298 /* Swap out the procedure information. */
4299
4300 static unsigned long
4301 ecoff_build_procs (backend, buf, bufend, offset)
4302 const struct ecoff_debug_swap *backend;
4303 char **buf;
4304 char **bufend;
4305 unsigned long offset;
4306 {
4307 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4308 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4309 = backend->swap_pdr_out;
4310 char *pdr_out;
4311 long iproc;
4312 vlinks_t *file_link;
4313
4314 pdr_out = *buf + offset;
4315
4316 iproc = 0;
4317
4318 /* The procedures are stored by file. */
4319 for (file_link = file_desc.first;
4320 file_link != (vlinks_t *) NULL;
4321 file_link = file_link->next)
4322 {
4323 int fil_cnt;
4324 efdr_t *fil_ptr;
4325 efdr_t *fil_end;
4326
4327 if (file_link->next == (vlinks_t *) NULL)
4328 fil_cnt = file_desc.objects_last_page;
4329 else
4330 fil_cnt = file_desc.objects_per_page;
4331 fil_ptr = file_link->datum->file;
4332 fil_end = fil_ptr + fil_cnt;
4333 for (; fil_ptr < fil_end; fil_ptr++)
4334 {
4335 vlinks_t *proc_link;
4336 int first;
4337
4338 fil_ptr->fdr.ipdFirst = iproc;
4339 first = 1;
4340 for (proc_link = fil_ptr->procs.first;
4341 proc_link != (vlinks_t *) NULL;
4342 proc_link = proc_link->next)
4343 {
4344 int prc_cnt;
4345 proc_t *proc_ptr;
4346 proc_t *proc_end;
4347
4348 if (proc_link->next == (vlinks_t *) NULL)
4349 prc_cnt = fil_ptr->procs.objects_last_page;
4350 else
4351 prc_cnt = fil_ptr->procs.objects_per_page;
4352 proc_ptr = proc_link->datum->proc;
4353 proc_end = proc_ptr + prc_cnt;
4354 for (; proc_ptr < proc_end; proc_ptr++)
4355 {
4356 symbolS *adr_sym;
4357 unsigned long adr;
4358
4359 adr_sym = proc_ptr->sym->as_sym;
4360 adr = (S_GET_VALUE (adr_sym)
4361 + bfd_get_section_vma (stdoutput,
4362 S_GET_SEGMENT (adr_sym)));
4363 if (first)
4364 {
4365 /* This code used to force the adr of the very
4366 first fdr to be 0. However, the native tools
4367 don't do that, and I can't remember why it
4368 used to work that way, so I took it out. */
4369 fil_ptr->fdr.adr = adr;
4370 first = 0;
4371 }
4372 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4373 if (*bufend - pdr_out < external_pdr_size)
4374 pdr_out = ecoff_add_bytes (buf, bufend,
4375 pdr_out,
4376 external_pdr_size);
4377 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4378 pdr_out += external_pdr_size;
4379 ++iproc;
4380 }
4381 }
4382 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4383 }
4384 }
4385
4386 return offset + iproc * external_pdr_size;
4387 }
4388
4389 /* Swap out the aux information. */
4390
4391 static unsigned long
4392 ecoff_build_aux (backend, buf, bufend, offset)
4393 const struct ecoff_debug_swap *backend;
4394 char **buf;
4395 char **bufend;
4396 unsigned long offset;
4397 {
4398 int bigendian;
4399 union aux_ext *aux_out;
4400 long iaux;
4401 vlinks_t *file_link;
4402
4403 bigendian = bfd_big_endian (stdoutput);
4404
4405 aux_out = (union aux_ext *) (*buf + offset);
4406
4407 iaux = 0;
4408
4409 /* The aux entries are stored by file. */
4410 for (file_link = file_desc.first;
4411 file_link != (vlinks_t *) NULL;
4412 file_link = file_link->next)
4413 {
4414 int fil_cnt;
4415 efdr_t *fil_ptr;
4416 efdr_t *fil_end;
4417
4418 if (file_link->next == (vlinks_t *) NULL)
4419 fil_cnt = file_desc.objects_last_page;
4420 else
4421 fil_cnt = file_desc.objects_per_page;
4422 fil_ptr = file_link->datum->file;
4423 fil_end = fil_ptr + fil_cnt;
4424 for (; fil_ptr < fil_end; fil_ptr++)
4425 {
4426 vlinks_t *aux_link;
4427
4428 fil_ptr->fdr.fBigendian = bigendian;
4429 fil_ptr->fdr.iauxBase = iaux;
4430 for (aux_link = fil_ptr->aux_syms.first;
4431 aux_link != (vlinks_t *) NULL;
4432 aux_link = aux_link->next)
4433 {
4434 int aux_cnt;
4435 aux_t *aux_ptr;
4436 aux_t *aux_end;
4437
4438 if (aux_link->next == (vlinks_t *) NULL)
4439 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4440 else
4441 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4442 aux_ptr = aux_link->datum->aux;
4443 aux_end = aux_ptr + aux_cnt;
4444 for (; aux_ptr < aux_end; aux_ptr++)
4445 {
4446 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4447 aux_out = ((union aux_ext *)
4448 ecoff_add_bytes (buf, bufend,
4449 (char *) aux_out,
4450 sizeof (union aux_ext)));
4451 switch (aux_ptr->type)
4452 {
4453 case aux_tir:
4454 (*backend->swap_tir_out) (bigendian,
4455 &aux_ptr->data.ti,
4456 &aux_out->a_ti);
4457 break;
4458 case aux_rndx:
4459 (*backend->swap_rndx_out) (bigendian,
4460 &aux_ptr->data.rndx,
4461 &aux_out->a_rndx);
4462 break;
4463 case aux_dnLow:
4464 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4465 aux_out);
4466 break;
4467 case aux_dnHigh:
4468 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4469 aux_out);
4470 break;
4471 case aux_isym:
4472 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4473 aux_out);
4474 break;
4475 case aux_iss:
4476 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4477 aux_out);
4478 break;
4479 case aux_width:
4480 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4481 aux_out);
4482 break;
4483 case aux_count:
4484 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4485 aux_out);
4486 break;
4487 }
4488
4489 ++aux_out;
4490 ++iaux;
4491 }
4492 }
4493 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4494 }
4495 }
4496
4497 return ecoff_padding_adjust (backend, buf, bufend,
4498 offset + iaux * sizeof (union aux_ext),
4499 (char **) NULL);
4500 }
4501
4502 /* Copy out the strings from a varray_t. This returns the number of
4503 bytes copied, rather than the new offset. */
4504
4505 static unsigned long
4506 ecoff_build_strings (buf, bufend, offset, vp)
4507 char **buf;
4508 char **bufend;
4509 unsigned long offset;
4510 varray_t *vp;
4511 {
4512 unsigned long istr;
4513 char *str_out;
4514 vlinks_t *str_link;
4515
4516 str_out = *buf + offset;
4517
4518 istr = 0;
4519
4520 for (str_link = vp->first;
4521 str_link != (vlinks_t *) NULL;
4522 str_link = str_link->next)
4523 {
4524 unsigned long str_cnt;
4525
4526 if (str_link->next == (vlinks_t *) NULL)
4527 str_cnt = vp->objects_last_page;
4528 else
4529 str_cnt = vp->objects_per_page;
4530
4531 if (*bufend - str_out < str_cnt)
4532 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4533
4534 memcpy (str_out, str_link->datum->byte, str_cnt);
4535 str_out += str_cnt;
4536 istr += str_cnt;
4537 }
4538
4539 return istr;
4540 }
4541
4542 /* Dump out the local strings. */
4543
4544 static unsigned long
4545 ecoff_build_ss (backend, buf, bufend, offset)
4546 const struct ecoff_debug_swap *backend;
4547 char **buf;
4548 char **bufend;
4549 unsigned long offset;
4550 {
4551 long iss;
4552 vlinks_t *file_link;
4553
4554 iss = 0;
4555
4556 for (file_link = file_desc.first;
4557 file_link != (vlinks_t *) NULL;
4558 file_link = file_link->next)
4559 {
4560 int fil_cnt;
4561 efdr_t *fil_ptr;
4562 efdr_t *fil_end;
4563
4564 if (file_link->next == (vlinks_t *) NULL)
4565 fil_cnt = file_desc.objects_last_page;
4566 else
4567 fil_cnt = file_desc.objects_per_page;
4568 fil_ptr = file_link->datum->file;
4569 fil_end = fil_ptr + fil_cnt;
4570 for (; fil_ptr < fil_end; fil_ptr++)
4571 {
4572 long ss_cnt;
4573
4574 fil_ptr->fdr.issBase = iss;
4575 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4576 &fil_ptr->strings);
4577 fil_ptr->fdr.cbSs = ss_cnt;
4578 iss += ss_cnt;
4579 }
4580 }
4581
4582 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4583 (char **) NULL);
4584 }
4585
4586 /* Swap out the file descriptors. */
4587
4588 static unsigned long
4589 ecoff_build_fdr (backend, buf, bufend, offset)
4590 const struct ecoff_debug_swap *backend;
4591 char **buf;
4592 char **bufend;
4593 unsigned long offset;
4594 {
4595 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4596 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4597 = backend->swap_fdr_out;
4598 long ifile;
4599 char *fdr_out;
4600 vlinks_t *file_link;
4601
4602 ifile = 0;
4603
4604 fdr_out = *buf + offset;
4605
4606 for (file_link = file_desc.first;
4607 file_link != (vlinks_t *) NULL;
4608 file_link = file_link->next)
4609 {
4610 int fil_cnt;
4611 efdr_t *fil_ptr;
4612 efdr_t *fil_end;
4613
4614 if (file_link->next == (vlinks_t *) NULL)
4615 fil_cnt = file_desc.objects_last_page;
4616 else
4617 fil_cnt = file_desc.objects_per_page;
4618 fil_ptr = file_link->datum->file;
4619 fil_end = fil_ptr + fil_cnt;
4620 for (; fil_ptr < fil_end; fil_ptr++)
4621 {
4622 if (*bufend - fdr_out < external_fdr_size)
4623 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4624 external_fdr_size);
4625 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4626 fdr_out += external_fdr_size;
4627 ++ifile;
4628 }
4629 }
4630
4631 return offset + ifile * external_fdr_size;
4632 }
4633
4634 /* Set up the external symbols. These are supposed to be handled by
4635 the backend. This routine just gets the right information and
4636 calls a backend function to deal with it. */
4637
4638 static void
4639 ecoff_setup_ext ()
4640 {
4641 register symbolS *sym;
4642
4643 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4644 {
4645 if (symbol_get_obj (sym)->ecoff_symbol == NULL)
4646 continue;
4647
4648 /* If this is a local symbol, then force the fields to zero. */
4649 if (! S_IS_EXTERNAL (sym)
4650 && ! S_IS_WEAK (sym)
4651 && S_IS_DEFINED (sym))
4652 {
4653 struct localsym *lsym;
4654
4655 lsym = symbol_get_obj (sym)->ecoff_symbol;
4656 lsym->ecoff_sym.asym.value = 0;
4657 lsym->ecoff_sym.asym.st = (int) st_Nil;
4658 lsym->ecoff_sym.asym.sc = (int) sc_Nil;
4659 lsym->ecoff_sym.asym.index = indexNil;
4660 }
4661
4662 obj_ecoff_set_ext (sym, &symbol_get_obj (sym)->ecoff_symbol->ecoff_sym);
4663 }
4664 }
4665
4666 /* Build the ECOFF debugging information. */
4667
4668 unsigned long
4669 ecoff_build_debug (hdr, bufp, backend)
4670 HDRR *hdr;
4671 char **bufp;
4672 const struct ecoff_debug_swap *backend;
4673 {
4674 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4675 tag_t *ptag;
4676 tag_t *ptag_next;
4677 efdr_t *fil_ptr;
4678 int end_warning;
4679 efdr_t *hold_file_ptr;
4680 proc_t *hold_proc_ptr;
4681 symbolS *sym;
4682 char *buf;
4683 char *bufend;
4684 unsigned long offset;
4685
4686 /* Make sure we have a file. */
4687 if (first_file == (efdr_t *) NULL)
4688 add_file ((const char *) NULL, 0, 1);
4689
4690 /* Handle any top level tags. */
4691 for (ptag = top_tag_head->first_tag;
4692 ptag != (tag_t *) NULL;
4693 ptag = ptag_next)
4694 {
4695 if (ptag->forward_ref != (forward_t *) NULL)
4696 add_unknown_tag (ptag);
4697
4698 ptag_next = ptag->same_block;
4699 ptag->hash_ptr->tag_ptr = ptag->same_name;
4700 free_tag (ptag);
4701 }
4702
4703 free_thead (top_tag_head);
4704
4705 /* Look through the symbols. Add debugging information for each
4706 symbol that has not already received it. */
4707 hold_file_ptr = cur_file_ptr;
4708 hold_proc_ptr = cur_proc_ptr;
4709 cur_proc_ptr = (proc_t *) NULL;
4710 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4711 {
4712 if (symbol_get_obj (sym)->ecoff_symbol != NULL
4713 || symbol_get_obj (sym)->ecoff_file == (efdr_t *) NULL
4714 || (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0)
4715 continue;
4716
4717 cur_file_ptr = symbol_get_obj (sym)->ecoff_file;
4718 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4719 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4720 }
4721 cur_proc_ptr = hold_proc_ptr;
4722 cur_file_ptr = hold_file_ptr;
4723
4724 /* Output an ending symbol for all the files. We have to do this
4725 here for the last file, so we may as well do it for all of the
4726 files. */
4727 end_warning = 0;
4728 for (fil_ptr = first_file;
4729 fil_ptr != (efdr_t *) NULL;
4730 fil_ptr = fil_ptr->next_file)
4731 {
4732 cur_file_ptr = fil_ptr;
4733 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4734 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4735 {
4736 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4737 if (! end_warning && ! cur_file_ptr->fake)
4738 {
4739 as_warn (_("Missing .end or .bend at end of file"));
4740 end_warning = 1;
4741 }
4742 }
4743 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4744 (void) add_ecoff_symbol ((const char *) NULL,
4745 st_End, sc_Text,
4746 (symbolS *) NULL,
4747 (bfd_vma) 0,
4748 (symint_t) 0,
4749 (symint_t) 0);
4750 }
4751
4752 /* Build the symbolic information. */
4753 offset = 0;
4754 buf = xmalloc (PAGE_SIZE);
4755 bufend = buf + PAGE_SIZE;
4756
4757 /* Build the line number information. */
4758 hdr->cbLineOffset = offset;
4759 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4760 &hdr->ilineMax);
4761 hdr->cbLine = offset - hdr->cbLineOffset;
4762
4763 /* We don't use dense numbers at all. */
4764 hdr->idnMax = 0;
4765 hdr->cbDnOffset = 0;
4766
4767 /* We can't build the PDR table until we have built the symbols,
4768 because a PDR contains a symbol index. However, we set aside
4769 space at this point. */
4770 hdr->ipdMax = proc_cnt;
4771 hdr->cbPdOffset = offset;
4772 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4773 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4774 proc_cnt * external_pdr_size);
4775 offset += proc_cnt * external_pdr_size;
4776
4777 /* Build the local symbols. */
4778 hdr->cbSymOffset = offset;
4779 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4780 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4781
4782 /* Building the symbols initializes the symbol index in the PDR's.
4783 Now we can swap out the PDR's. */
4784 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4785
4786 /* We don't use optimization symbols. */
4787 hdr->ioptMax = 0;
4788 hdr->cbOptOffset = 0;
4789
4790 /* Swap out the auxiliary type information. */
4791 hdr->cbAuxOffset = offset;
4792 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4793 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4794
4795 /* Copy out the local strings. */
4796 hdr->cbSsOffset = offset;
4797 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4798 hdr->issMax = offset - hdr->cbSsOffset;
4799
4800 /* We don't use relative file descriptors. */
4801 hdr->crfd = 0;
4802 hdr->cbRfdOffset = 0;
4803
4804 /* Swap out the file descriptors. */
4805 hdr->cbFdOffset = offset;
4806 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4807 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4808
4809 /* Set up the external symbols, which are handled by the BFD back
4810 end. */
4811 hdr->issExtMax = 0;
4812 hdr->cbSsExtOffset = 0;
4813 hdr->iextMax = 0;
4814 hdr->cbExtOffset = 0;
4815 ecoff_setup_ext ();
4816
4817 know ((offset & (backend->debug_align - 1)) == 0);
4818
4819 /* FIXME: This value should be determined from the .verstamp directive,
4820 with reasonable defaults in config files. */
4821 #ifdef TC_ALPHA
4822 hdr->vstamp = 0x030b;
4823 #else
4824 hdr->vstamp = 0x020b;
4825 #endif
4826
4827 *bufp = buf;
4828 return offset;
4829 }
4830 \f
4831 /* Allocate a cluster of pages. */
4832
4833 #ifndef MALLOC_CHECK
4834
4835 static page_type *
4836 allocate_cluster (npages)
4837 unsigned long npages;
4838 {
4839 register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4840
4841 #ifdef ECOFF_DEBUG
4842 if (debug > 3)
4843 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4844 #endif
4845
4846 memset (value, 0, npages * PAGE_USIZE);
4847
4848 return value;
4849 }
4850
4851 static page_type *cluster_ptr = NULL;
4852 static unsigned long pages_left = 0;
4853
4854 #endif /* MALLOC_CHECK */
4855
4856 /* Allocate one page (which is initialized to 0). */
4857
4858 static page_type *
4859 allocate_page ()
4860 {
4861 #ifndef MALLOC_CHECK
4862
4863 if (pages_left == 0)
4864 {
4865 pages_left = MAX_CLUSTER_PAGES;
4866 cluster_ptr = allocate_cluster (pages_left);
4867 }
4868
4869 pages_left--;
4870 return cluster_ptr++;
4871
4872 #else /* MALLOC_CHECK */
4873
4874 page_type *ptr;
4875
4876 ptr = xmalloc (PAGE_USIZE);
4877 memset (ptr, 0, PAGE_USIZE);
4878 return ptr;
4879
4880 #endif /* MALLOC_CHECK */
4881 }
4882 \f
4883 /* Allocate scoping information. */
4884
4885 static scope_t *
4886 allocate_scope ()
4887 {
4888 register scope_t *ptr;
4889 static scope_t initial_scope;
4890
4891 #ifndef MALLOC_CHECK
4892
4893 ptr = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4894 if (ptr != (scope_t *) NULL)
4895 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr->free;
4896 else
4897 {
4898 register int unallocated = alloc_counts[(int) alloc_type_scope].unallocated;
4899 register page_type *cur_page = alloc_counts[(int) alloc_type_scope].cur_page;
4900
4901 if (unallocated == 0)
4902 {
4903 unallocated = PAGE_SIZE / sizeof (scope_t);
4904 alloc_counts[(int) alloc_type_scope].cur_page = cur_page = allocate_page ();
4905 alloc_counts[(int) alloc_type_scope].total_pages++;
4906 }
4907
4908 ptr = &cur_page->scope[--unallocated];
4909 alloc_counts[(int) alloc_type_scope].unallocated = unallocated;
4910 }
4911
4912 #else
4913
4914 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4915
4916 #endif
4917
4918 alloc_counts[(int) alloc_type_scope].total_alloc++;
4919 *ptr = initial_scope;
4920 return ptr;
4921 }
4922
4923 /* Free scoping information. */
4924
4925 static void
4926 free_scope (ptr)
4927 scope_t *ptr;
4928 {
4929 alloc_counts[(int) alloc_type_scope].total_free++;
4930
4931 #ifndef MALLOC_CHECK
4932 ptr->free = alloc_counts[(int) alloc_type_scope].free_list.f_scope;
4933 alloc_counts[(int) alloc_type_scope].free_list.f_scope = ptr;
4934 #else
4935 free ((PTR) ptr);
4936 #endif
4937 }
4938 \f
4939 /* Allocate links for pages in a virtual array. */
4940
4941 static vlinks_t *
4942 allocate_vlinks ()
4943 {
4944 register vlinks_t *ptr;
4945 static vlinks_t initial_vlinks;
4946
4947 #ifndef MALLOC_CHECK
4948
4949 register int unallocated = alloc_counts[(int) alloc_type_vlinks].unallocated;
4950 register page_type *cur_page = alloc_counts[(int) alloc_type_vlinks].cur_page;
4951
4952 if (unallocated == 0)
4953 {
4954 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4955 alloc_counts[(int) alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4956 alloc_counts[(int) alloc_type_vlinks].total_pages++;
4957 }
4958
4959 ptr = &cur_page->vlinks[--unallocated];
4960 alloc_counts[(int) alloc_type_vlinks].unallocated = unallocated;
4961
4962 #else
4963
4964 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4965
4966 #endif
4967
4968 alloc_counts[(int) alloc_type_vlinks].total_alloc++;
4969 *ptr = initial_vlinks;
4970 return ptr;
4971 }
4972 \f
4973 /* Allocate string hash buckets. */
4974
4975 static shash_t *
4976 allocate_shash ()
4977 {
4978 register shash_t *ptr;
4979 static shash_t initial_shash;
4980
4981 #ifndef MALLOC_CHECK
4982
4983 register int unallocated = alloc_counts[(int) alloc_type_shash].unallocated;
4984 register page_type *cur_page = alloc_counts[(int) alloc_type_shash].cur_page;
4985
4986 if (unallocated == 0)
4987 {
4988 unallocated = PAGE_SIZE / sizeof (shash_t);
4989 alloc_counts[(int) alloc_type_shash].cur_page = cur_page = allocate_page ();
4990 alloc_counts[(int) alloc_type_shash].total_pages++;
4991 }
4992
4993 ptr = &cur_page->shash[--unallocated];
4994 alloc_counts[(int) alloc_type_shash].unallocated = unallocated;
4995
4996 #else
4997
4998 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4999
5000 #endif
5001
5002 alloc_counts[(int) alloc_type_shash].total_alloc++;
5003 *ptr = initial_shash;
5004 return ptr;
5005 }
5006 \f
5007 /* Allocate type hash buckets. */
5008
5009 static thash_t *
5010 allocate_thash ()
5011 {
5012 register thash_t *ptr;
5013 static thash_t initial_thash;
5014
5015 #ifndef MALLOC_CHECK
5016
5017 register int unallocated = alloc_counts[(int) alloc_type_thash].unallocated;
5018 register page_type *cur_page = alloc_counts[(int) alloc_type_thash].cur_page;
5019
5020 if (unallocated == 0)
5021 {
5022 unallocated = PAGE_SIZE / sizeof (thash_t);
5023 alloc_counts[(int) alloc_type_thash].cur_page = cur_page = allocate_page ();
5024 alloc_counts[(int) alloc_type_thash].total_pages++;
5025 }
5026
5027 ptr = &cur_page->thash[--unallocated];
5028 alloc_counts[(int) alloc_type_thash].unallocated = unallocated;
5029
5030 #else
5031
5032 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5033
5034 #endif
5035
5036 alloc_counts[(int) alloc_type_thash].total_alloc++;
5037 *ptr = initial_thash;
5038 return ptr;
5039 }
5040 \f
5041 /* Allocate structure, union, or enum tag information. */
5042
5043 static tag_t *
5044 allocate_tag ()
5045 {
5046 register tag_t *ptr;
5047 static tag_t initial_tag;
5048
5049 #ifndef MALLOC_CHECK
5050
5051 ptr = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5052 if (ptr != (tag_t *) NULL)
5053 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr->free;
5054 else
5055 {
5056 register int unallocated = alloc_counts[(int) alloc_type_tag].unallocated;
5057 register page_type *cur_page = alloc_counts[(int) alloc_type_tag].cur_page;
5058
5059 if (unallocated == 0)
5060 {
5061 unallocated = PAGE_SIZE / sizeof (tag_t);
5062 alloc_counts[(int) alloc_type_tag].cur_page = cur_page = allocate_page ();
5063 alloc_counts[(int) alloc_type_tag].total_pages++;
5064 }
5065
5066 ptr = &cur_page->tag[--unallocated];
5067 alloc_counts[(int) alloc_type_tag].unallocated = unallocated;
5068 }
5069
5070 #else
5071
5072 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5073
5074 #endif
5075
5076 alloc_counts[(int) alloc_type_tag].total_alloc++;
5077 *ptr = initial_tag;
5078 return ptr;
5079 }
5080
5081 /* Free scoping information. */
5082
5083 static void
5084 free_tag (ptr)
5085 tag_t *ptr;
5086 {
5087 alloc_counts[(int) alloc_type_tag].total_free++;
5088
5089 #ifndef MALLOC_CHECK
5090 ptr->free = alloc_counts[(int) alloc_type_tag].free_list.f_tag;
5091 alloc_counts[(int) alloc_type_tag].free_list.f_tag = ptr;
5092 #else
5093 free ((PTR_T) ptr);
5094 #endif
5095 }
5096 \f
5097 /* Allocate forward reference to a yet unknown tag. */
5098
5099 static forward_t *
5100 allocate_forward ()
5101 {
5102 register forward_t *ptr;
5103 static forward_t initial_forward;
5104
5105 #ifndef MALLOC_CHECK
5106
5107 register int unallocated = alloc_counts[(int) alloc_type_forward].unallocated;
5108 register page_type *cur_page = alloc_counts[(int) alloc_type_forward].cur_page;
5109
5110 if (unallocated == 0)
5111 {
5112 unallocated = PAGE_SIZE / sizeof (forward_t);
5113 alloc_counts[(int) alloc_type_forward].cur_page = cur_page = allocate_page ();
5114 alloc_counts[(int) alloc_type_forward].total_pages++;
5115 }
5116
5117 ptr = &cur_page->forward[--unallocated];
5118 alloc_counts[(int) alloc_type_forward].unallocated = unallocated;
5119
5120 #else
5121
5122 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5123
5124 #endif
5125
5126 alloc_counts[(int) alloc_type_forward].total_alloc++;
5127 *ptr = initial_forward;
5128 return ptr;
5129 }
5130 \f
5131 /* Allocate head of type hash list. */
5132
5133 static thead_t *
5134 allocate_thead ()
5135 {
5136 register thead_t *ptr;
5137 static thead_t initial_thead;
5138
5139 #ifndef MALLOC_CHECK
5140
5141 ptr = alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5142 if (ptr != (thead_t *) NULL)
5143 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr->free;
5144 else
5145 {
5146 register int unallocated = alloc_counts[(int) alloc_type_thead].unallocated;
5147 register page_type *cur_page = alloc_counts[(int) alloc_type_thead].cur_page;
5148
5149 if (unallocated == 0)
5150 {
5151 unallocated = PAGE_SIZE / sizeof (thead_t);
5152 alloc_counts[(int) alloc_type_thead].cur_page = cur_page = allocate_page ();
5153 alloc_counts[(int) alloc_type_thead].total_pages++;
5154 }
5155
5156 ptr = &cur_page->thead[--unallocated];
5157 alloc_counts[(int) alloc_type_thead].unallocated = unallocated;
5158 }
5159
5160 #else
5161
5162 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5163
5164 #endif
5165
5166 alloc_counts[(int) alloc_type_thead].total_alloc++;
5167 *ptr = initial_thead;
5168 return ptr;
5169 }
5170
5171 /* Free scoping information. */
5172
5173 static void
5174 free_thead (ptr)
5175 thead_t *ptr;
5176 {
5177 alloc_counts[(int) alloc_type_thead].total_free++;
5178
5179 #ifndef MALLOC_CHECK
5180 ptr->free = (thead_t *) alloc_counts[(int) alloc_type_thead].free_list.f_thead;
5181 alloc_counts[(int) alloc_type_thead].free_list.f_thead = ptr;
5182 #else
5183 free ((PTR_T) ptr);
5184 #endif
5185 }
5186 \f
5187 static lineno_list_t *
5188 allocate_lineno_list ()
5189 {
5190 register lineno_list_t *ptr;
5191 static lineno_list_t initial_lineno_list;
5192
5193 #ifndef MALLOC_CHECK
5194
5195 register int unallocated = alloc_counts[(int) alloc_type_lineno].unallocated;
5196 register page_type *cur_page = alloc_counts[(int) alloc_type_lineno].cur_page;
5197
5198 if (unallocated == 0)
5199 {
5200 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5201 alloc_counts[(int) alloc_type_lineno].cur_page = cur_page = allocate_page ();
5202 alloc_counts[(int) alloc_type_lineno].total_pages++;
5203 }
5204
5205 ptr = &cur_page->lineno[--unallocated];
5206 alloc_counts[(int) alloc_type_lineno].unallocated = unallocated;
5207
5208 #else
5209
5210 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5211
5212 #endif
5213
5214 alloc_counts[(int) alloc_type_lineno].total_alloc++;
5215 *ptr = initial_lineno_list;
5216 return ptr;
5217 }
5218
5219 void
5220 ecoff_set_gp_prolog_size (sz)
5221 int sz;
5222 {
5223 if (cur_proc_ptr == 0)
5224 return;
5225
5226 cur_proc_ptr->pdr.gp_prologue = sz;
5227 if (cur_proc_ptr->pdr.gp_prologue != sz)
5228 {
5229 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5230 cur_proc_ptr->pdr.gp_prologue = 0;
5231 }
5232
5233 cur_proc_ptr->pdr.gp_used = 1;
5234 }
5235
5236 int
5237 ecoff_no_current_file ()
5238 {
5239 return cur_file_ptr == (efdr_t *) NULL;
5240 }
5241
5242 void
5243 ecoff_generate_asm_lineno ()
5244 {
5245 unsigned int lineno;
5246 char *filename;
5247 lineno_list_t *list;
5248
5249 as_where (&filename, &lineno);
5250
5251 if (current_stabs_filename == (char *) NULL
5252 || strcmp (current_stabs_filename, filename))
5253 add_file (filename, 0, 1);
5254
5255 list = allocate_lineno_list ();
5256
5257 list->next = (lineno_list_t *) NULL;
5258 list->file = cur_file_ptr;
5259 list->proc = cur_proc_ptr;
5260 list->frag = frag_now;
5261 list->paddr = frag_now_fix ();
5262 list->lineno = lineno;
5263
5264 /* We don't want to merge files which have line numbers. */
5265 cur_file_ptr->fdr.fMerge = 0;
5266
5267 /* A .loc directive will sometimes appear before a .ent directive,
5268 which means that cur_proc_ptr will be NULL here. Arrange to
5269 patch this up. */
5270 if (cur_proc_ptr == (proc_t *) NULL)
5271 {
5272 lineno_list_t **pl;
5273
5274 pl = &noproc_lineno;
5275 while (*pl != (lineno_list_t *) NULL)
5276 pl = &(*pl)->next;
5277 *pl = list;
5278 }
5279 else
5280 {
5281 last_lineno = list;
5282 *last_lineno_ptr = list;
5283 last_lineno_ptr = &list->next;
5284 }
5285 }
5286
5287 #else
5288
5289 void
5290 ecoff_generate_asm_lineno ()
5291 {
5292 }
5293
5294 #endif /* ECOFF_DEBUGGING */
git-cvsimport of binutils cvsroot