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* app.c (input_buffer): New static variable.
[deliverable/binutils-gdb.git] / gas / ecoff.c
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252b5132
RH		 1/* ECOFF debugging support.
2 Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
5 good deal of it comes directly from mips-tfile.c, by Michael
6 Meissner <meissner@osf.org>.
7
8 This file is part of GAS.
9
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to the Free
22 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 02111-1307, USA. */
24
25#include "as.h"
26
27/* This file is compiled conditionally for those targets which use
28 ECOFF debugging information (e.g., MIPS ECOFF, MIPS ELF, Alpha
29 ECOFF). */
30
31#ifdef ECOFF_DEBUGGING
32
33#include "coff/internal.h"
34#include "coff/symconst.h"
35#include "ecoff.h"
36#include "aout/stab_gnu.h"
37
38#include <ctype.h>
39
40/* Why isn't this in coff/sym.h? */
41#define ST_RFDESCAPE 0xfff
42
43/* This file constructs the information used by the ECOFF debugging
44 format. It just builds a large block of data.
45
46 We support both ECOFF style debugging and stabs debugging (the
47 stabs symbols are encapsulated in ECOFF symbols). This should let
48 us handle anything the compiler might throw at us. */
49
50/* Here is a brief description of the MIPS ECOFF symbol table, by
51 Michael Meissner. The MIPS symbol table has the following pieces:
52
53 Symbolic Header
54 |
55 +-- Auxiliary Symbols
56 |
57 +-- Dense number table
58 |
59 +-- Optimizer Symbols
60 |
61 +-- External Strings
62 |
63 +-- External Symbols
64 |
65 +-- Relative file descriptors
66 |
67 +-- File table
68 |
69 +-- Procedure table
70 |
71 +-- Line number table
72 |
73 +-- Local Strings
74 |
75 +-- Local Symbols
76
77 The symbolic header points to each of the other tables, and also
78 contains the number of entries. It also contains a magic number
79 and MIPS compiler version number, such as 2.0.
80
81 The auxiliary table is a series of 32 bit integers, that are
82 referenced as needed from the local symbol table. Unlike standard
83 COFF, the aux. information does not follow the symbol that uses
84 it, but rather is a separate table. In theory, this would allow
85 the MIPS compilers to collapse duplicate aux. entries, but I've not
86 noticed this happening with the 1.31 compiler suite. The different
87 types of aux. entries are:
88
89 1) dnLow: Low bound on array dimension.
90
91 2) dnHigh: High bound on array dimension.
92
93 3) isym: Index to the local symbol which is the start of the
94 function for the end of function first aux. entry.
95
96 4) width: Width of structures and bitfields.
97
98 5) count: Count of ranges for variant part.
99
100 6) rndx: A relative index into the symbol table. The relative
101 index field has two parts: rfd which is a pointer into the
102 relative file index table or ST_RFDESCAPE which says the next
103 aux. entry is the file number, and index: which is the pointer
104 into the local symbol within a given file table. This is for
105 things like references to types defined in another file.
106
107 7) Type information: This is like the COFF type bits, except it
108 is 32 bits instead of 16; they still have room to add new
109 basic types; and they can handle more than 6 levels of array,
110 pointer, function, etc. Each type information field contains
111 the following structure members:
112
113 a) fBitfield: a bit that says this is a bitfield, and the
114 size in bits follows as the next aux. entry.
115
116 b) continued: a bit that says the next aux. entry is a
117 continuation of the current type information (in case
118 there are more than 6 levels of array/ptr/function).
119
120 c) bt: an integer containing the base type before adding
121 array, pointer, function, etc. qualifiers. The
122 current base types that I have documentation for are:
123
124 btNil -- undefined
125 btAdr -- address - integer same size as ptr
126 btChar -- character
127 btUChar -- unsigned character
128 btShort -- short
129 btUShort -- unsigned short
130 btInt -- int
131 btUInt -- unsigned int
132 btLong -- long
133 btULong -- unsigned long
134 btFloat -- float (real)
135 btDouble -- Double (real)
136 btStruct -- Structure (Record)
137 btUnion -- Union (variant)
138 btEnum -- Enumerated
139 btTypedef -- defined via a typedef isymRef
140 btRange -- subrange of int
141 btSet -- pascal sets
142 btComplex -- fortran complex
143 btDComplex -- fortran double complex
144 btIndirect -- forward or unnamed typedef
145 btFixedDec -- Fixed Decimal
146 btFloatDec -- Float Decimal
147 btString -- Varying Length Character String
148 btBit -- Aligned Bit String
149 btPicture -- Picture
150 btVoid -- Void (MIPS cc revision >= 2.00)
151
152 d) tq0 - tq5: type qualifier fields as needed. The
153 current type qualifier fields I have documentation for
154 are:
155
156 tqNil -- no more qualifiers
157 tqPtr -- pointer
158 tqProc -- procedure
159 tqArray -- array
160 tqFar -- 8086 far pointers
161 tqVol -- volatile
162
163
164 The dense number table is used in the front ends, and disappears by
165 the time the .o is created.
166
167 With the 1.31 compiler suite, the optimization symbols don't seem
168 to be used as far as I can tell.
169
170 The linker is the first entity that creates the relative file
171 descriptor table, and I believe it is used so that the individual
172 file table pointers don't have to be rewritten when the objects are
173 merged together into the program file.
174
175 Unlike COFF, the basic symbol & string tables are split into
176 external and local symbols/strings. The relocation information
177 only goes off of the external symbol table, and the debug
178 information only goes off of the internal symbol table. The
179 external symbols can have links to an appropriate file index and
180 symbol within the file to give it the appropriate type information.
181 Because of this, the external symbols are actually larger than the
182 internal symbols (to contain the link information), and contain the
183 local symbol structure as a member, though this member is not the
184 first member of the external symbol structure (!). I suspect this
185 split is to make strip easier to deal with.
186
187 Each file table has offsets for where the line numbers, local
188 strings, local symbols, and procedure table starts from within the
189 global tables, and the indexs are reset to 0 for each of those
190 tables for the file.
191
192 The procedure table contains the binary equivalents of the .ent
193 (start of the function address), .frame (what register is the
194 virtual frame pointer, constant offset from the register to obtain
195 the VFP, and what register holds the return address), .mask/.fmask
196 (bitmask of saved registers, and where the first register is stored
197 relative to the VFP) assembler directives. It also contains the
198 low and high bounds of the line numbers if debugging is turned on.
199
200 The line number table is a compressed form of the normal COFF line
201 table. Each line number entry is either 1 or 3 bytes long, and
202 contains a signed delta from the previous line, and an unsigned
203 count of the number of instructions this statement takes.
204
205 The local symbol table contains the following fields:
206
207 1) iss: index to the local string table giving the name of the
208 symbol.
209
210 2) value: value of the symbol (address, register number, etc.).
211
212 3) st: symbol type. The current symbol types are:
213
214 stNil -- Nuthin' special
215 stGlobal -- external symbol
216 stStatic -- static
217 stParam -- procedure argument
218 stLocal -- local variable
219 stLabel -- label
220 stProc -- External Procedure
221 stBlock -- beginning of block
222 stEnd -- end (of anything)
223 stMember -- member (of anything)
224 stTypedef -- type definition
225 stFile -- file name
226 stRegReloc -- register relocation
227 stForward -- forwarding address
228 stStaticProc -- Static procedure
229 stConstant -- const
230
231 4) sc: storage class. The current storage classes are:
232
233 scText -- text symbol
234 scData -- initialized data symbol
235 scBss -- un-initialized data symbol
236 scRegister -- value of symbol is register number
237 scAbs -- value of symbol is absolute
238 scUndefined -- who knows?
239 scCdbLocal -- variable's value is IN se->va.??
240 scBits -- this is a bit field
241 scCdbSystem -- value is IN debugger's address space
242 scRegImage -- register value saved on stack
243 scInfo -- symbol contains debugger information
244 scUserStruct -- addr in struct user for current process
245 scSData -- load time only small data
246 scSBss -- load time only small common
247 scRData -- load time only read only data
248 scVar -- Var parameter (fortranpascal)
249 scCommon -- common variable
250 scSCommon -- small common
251 scVarRegister -- Var parameter in a register
252 scVariant -- Variant record
253 scSUndefined -- small undefined(external) data
254 scInit -- .init section symbol
255
256 5) index: pointer to a local symbol or aux. entry.
257
258
259
260 For the following program:
261
262 #include <stdio.h>
263
264 main(){
265 printf("Hello World!\n");
266 return 0;
267 }
268
269 Mips-tdump produces the following information:
270
271 Global file header:
272 magic number 0x162
273 # sections 2
274 timestamp 645311799, Wed Jun 13 17:16:39 1990
275 symbolic header offset 284
276 symbolic header size 96
277 optional header 56
278 flags 0x0
279
280 Symbolic header, magic number = 0x7009, vstamp = 1.31:
281
282 Info Offset Number Bytes
283 ==== ====== ====== =====
284
285 Line numbers 380 4 4 [13]
286 Dense numbers 0 0 0
287 Procedures Tables 384 1 52
288 Local Symbols 436 16 192
289 Optimization Symbols 0 0 0
290 Auxiliary Symbols 628 39 156
291 Local Strings 784 80 80
292 External Strings 864 144 144
293 File Tables 1008 2 144
294 Relative Files 0 0 0
295 External Symbols 1152 20 320
296
297 File #0, "hello2.c"
298
299 Name index = 1 Readin = No
300 Merge = No Endian = LITTLE
301 Debug level = G2 Language = C
302 Adr = 0x00000000
303
304 Info Start Number Size Offset
305 ==== ===== ====== ==== ======
306 Local strings 0 15 15 784
307 Local symbols 0 6 72 436
308 Line numbers 0 13 13 380
309 Optimization symbols 0 0 0 0
310 Procedures 0 1 52 384
311 Auxiliary symbols 0 14 56 628
312 Relative Files 0 0 0 0
313
314 There are 6 local symbols, starting at 436
315
316 Symbol# 0: "hello2.c"
317 End+1 symbol = 6
318 String index = 1
319 Storage class = Text Index = 6
320 Symbol type = File Value = 0
321
322 Symbol# 1: "main"
323 End+1 symbol = 5
324 Type = int
325 String index = 10
326 Storage class = Text Index = 12
327 Symbol type = Proc Value = 0
328
329 Symbol# 2: ""
330 End+1 symbol = 4
331 String index = 0
332 Storage class = Text Index = 4
333 Symbol type = Block Value = 8
334
335 Symbol# 3: ""
336 First symbol = 2
337 String index = 0
338 Storage class = Text Index = 2
339 Symbol type = End Value = 28
340
341 Symbol# 4: "main"
342 First symbol = 1
343 String index = 10
344 Storage class = Text Index = 1
345 Symbol type = End Value = 52
346
347 Symbol# 5: "hello2.c"
348 First symbol = 0
349 String index = 1
350 Storage class = Text Index = 0
351 Symbol type = End Value = 0
352
353 There are 14 auxiliary table entries, starting at 628.
354
355 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
356 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
357 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
358 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
359 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
360 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
361 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
362 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
363 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
364 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
365 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
366 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
367 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
368 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
369
370 There are 1 procedure descriptor entries, starting at 0.
371
372 Procedure descriptor 0:
373 Name index = 10 Name = "main"
374 .mask 0x80000000,-4 .fmask 0x00000000,0
375 .frame $29,24,$31
376 Opt. start = -1 Symbols start = 1
377 First line # = 3 Last line # = 6
378 Line Offset = 0 Address = 0x00000000
379
380 There are 4 bytes holding line numbers, starting at 380.
381 Line 3, delta 0, count 2
382 Line 4, delta 1, count 3
383 Line 5, delta 1, count 2
384 Line 6, delta 1, count 6
385
386 File #1, "/usr/include/stdio.h"
387
388 Name index = 1 Readin = No
389 Merge = Yes Endian = LITTLE
390 Debug level = G2 Language = C
391 Adr = 0x00000000
392
393 Info Start Number Size Offset
394 ==== ===== ====== ==== ======
395 Local strings 15 65 65 799
396 Local symbols 6 10 120 508
397 Line numbers 0 0 0 380
398 Optimization symbols 0 0 0 0
399 Procedures 1 0 0 436
400 Auxiliary symbols 14 25 100 684
401 Relative Files 0 0 0 0
402
403 There are 10 local symbols, starting at 442
404
405 Symbol# 0: "/usr/include/stdio.h"
406 End+1 symbol = 10
407 String index = 1
408 Storage class = Text Index = 10
409 Symbol type = File Value = 0
410
411 Symbol# 1: "_iobuf"
412 End+1 symbol = 9
413 String index = 22
414 Storage class = Info Index = 9
415 Symbol type = Block Value = 20
416
417 Symbol# 2: "_cnt"
418 Type = int
419 String index = 29
420 Storage class = Info Index = 4
421 Symbol type = Member Value = 0
422
423 Symbol# 3: "_ptr"
424 Type = ptr to char
425 String index = 34
426 Storage class = Info Index = 15
427 Symbol type = Member Value = 32
428
429 Symbol# 4: "_base"
430 Type = ptr to char
431 String index = 39
432 Storage class = Info Index = 16
433 Symbol type = Member Value = 64
434
435 Symbol# 5: "_bufsiz"
436 Type = int
437 String index = 45
438 Storage class = Info Index = 4
439 Symbol type = Member Value = 96
440
441 Symbol# 6: "_flag"
442 Type = short
443 String index = 53
444 Storage class = Info Index = 3
445 Symbol type = Member Value = 128
446
447 Symbol# 7: "_file"
448 Type = char
449 String index = 59
450 Storage class = Info Index = 2
451 Symbol type = Member Value = 144
452
453 Symbol# 8: ""
454 First symbol = 1
455 String index = 0
456 Storage class = Info Index = 1
457 Symbol type = End Value = 0
458
459 Symbol# 9: "/usr/include/stdio.h"
460 First symbol = 0
461 String index = 1
462 Storage class = Text Index = 0
463 Symbol type = End Value = 0
464
465 There are 25 auxiliary table entries, starting at 642.
466
467 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
468 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
469 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
470 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
471 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
472 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
473 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
474 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
475 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
476 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
477 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
478 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
479 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
481 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
482 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492
493 There are 0 procedure descriptor entries, starting at 1.
494
495 There are 20 external symbols, starting at 1152
496
497 Symbol# 0: "_iob"
498 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
499 String index = 0 Ifd = 1
500 Storage class = Nil Index = 17
501 Symbol type = Global Value = 60
502
503 Symbol# 1: "fopen"
504 String index = 5 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 2: "fdopen"
509 String index = 11 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 3: "freopen"
514 String index = 18 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 4: "popen"
519 String index = 26 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 5: "tmpfile"
524 String index = 32 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 6: "ftell"
529 String index = 40 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 7: "rewind"
534 String index = 46 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 8: "setbuf"
539 String index = 53 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 9: "setbuffer"
544 String index = 60 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 10: "setlinebuf"
549 String index = 70 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 11: "fgets"
554 String index = 81 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 12: "gets"
559 String index = 87 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 13: "ctermid"
564 String index = 92 Ifd = 1
565 Storage class = Nil Index = 1048575
566 Symbol type = Proc Value = 0
567
568 Symbol# 14: "cuserid"
569 String index = 100 Ifd = 1
570 Storage class = Nil Index = 1048575
571 Symbol type = Proc Value = 0
572
573 Symbol# 15: "tempnam"
574 String index = 108 Ifd = 1
575 Storage class = Nil Index = 1048575
576 Symbol type = Proc Value = 0
577
578 Symbol# 16: "tmpnam"
579 String index = 116 Ifd = 1
580 Storage class = Nil Index = 1048575
581 Symbol type = Proc Value = 0
582
583 Symbol# 17: "sprintf"
584 String index = 123 Ifd = 1
585 Storage class = Nil Index = 1048575
586 Symbol type = Proc Value = 0
587
588 Symbol# 18: "main"
589 Type = int
590 String index = 131 Ifd = 0
591 Storage class = Text Index = 1
592 Symbol type = Proc Value = 0
593
594 Symbol# 19: "printf"
595 String index = 136 Ifd = 0
596 Storage class = Undefined Index = 1048575
597 Symbol type = Proc Value = 0
598
599 The following auxiliary table entries were unused:
600
601 #0 0 0x00000000 void
602 #2 8 0x00000008 char
603 #3 16 0x00000010 short
604 #4 24 0x00000018 int
605 #5 32 0x00000020 long
606 #6 40 0x00000028 float
607 #7 44 0x0000002c double
608 #8 12 0x0000000c unsigned char
609 #9 20 0x00000014 unsigned short
610 #10 28 0x0000001c unsigned int
611 #11 36 0x00000024 unsigned long
612 #14 0 0x00000000 void
613 #15 24 0x00000018 int
614 #19 32 0x00000020 long
615 #20 40 0x00000028 float
616 #21 44 0x0000002c double
617 #22 12 0x0000000c unsigned char
618 #23 20 0x00000014 unsigned short
619 #24 28 0x0000001c unsigned int
620 #25 36 0x00000024 unsigned long
621 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
622*/
623\f
624/* Redefinition of of storage classes as an enumeration for better
625 debugging. */
626
627typedef enum sc {
628 sc_Nil = scNil, /* no storage class */
629 sc_Text = scText, /* text symbol */
630 sc_Data = scData, /* initialized data symbol */
631 sc_Bss = scBss, /* un-initialized data symbol */
632 sc_Register = scRegister, /* value of symbol is register number */
633 sc_Abs = scAbs, /* value of symbol is absolute */
634 sc_Undefined = scUndefined, /* who knows? */
635 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
636 sc_Bits = scBits, /* this is a bit field */
637 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
638 sc_RegImage = scRegImage, /* register value saved on stack */
639 sc_Info = scInfo, /* symbol contains debugger information */
640 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
641 sc_SData = scSData, /* load time only small data */
642 sc_SBss = scSBss, /* load time only small common */
643 sc_RData = scRData, /* load time only read only data */
644 sc_Var = scVar, /* Var parameter (fortran,pascal) */
645 sc_Common = scCommon, /* common variable */
646 sc_SCommon = scSCommon, /* small common */
647 sc_VarRegister = scVarRegister, /* Var parameter in a register */
648 sc_Variant = scVariant, /* Variant record */
649 sc_SUndefined = scSUndefined, /* small undefined(external) data */
650 sc_Init = scInit, /* .init section symbol */
651 sc_Max = scMax /* Max storage class+1 */
652} sc_t;
653
654/* Redefinition of symbol type. */
655
656typedef enum st {
657 st_Nil = stNil, /* Nuthin' special */
658 st_Global = stGlobal, /* external symbol */
659 st_Static = stStatic, /* static */
660 st_Param = stParam, /* procedure argument */
661 st_Local = stLocal, /* local variable */
662 st_Label = stLabel, /* label */
663 st_Proc = stProc, /* " " Procedure */
664 st_Block = stBlock, /* beginning of block */
665 st_End = stEnd, /* end (of anything) */
666 st_Member = stMember, /* member (of anything - struct/union/enum */
667 st_Typedef = stTypedef, /* type definition */
668 st_File = stFile, /* file name */
669 st_RegReloc = stRegReloc, /* register relocation */
670 st_Forward = stForward, /* forwarding address */
671 st_StaticProc = stStaticProc, /* load time only static procs */
672 st_Constant = stConstant, /* const */
673 st_Str = stStr, /* string */
674 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
675 st_Expr = stExpr, /* 2+2 vs. 4 */
676 st_Type = stType, /* post-coercion SER */
677 st_Max = stMax /* max type+1 */
678} st_t;
679
680/* Redefinition of type qualifiers. */
681
682typedef enum tq {
683 tq_Nil = tqNil, /* bt is what you see */
684 tq_Ptr = tqPtr, /* pointer */
685 tq_Proc = tqProc, /* procedure */
686 tq_Array = tqArray, /* duh */
687 tq_Far = tqFar, /* longer addressing - 8086/8 land */
688 tq_Vol = tqVol, /* volatile */
689 tq_Max = tqMax /* Max type qualifier+1 */
690} tq_t;
691
692/* Redefinition of basic types. */
693
694typedef enum bt {
695 bt_Nil = btNil, /* undefined */
696 bt_Adr = btAdr, /* address - integer same size as pointer */
697 bt_Char = btChar, /* character */
698 bt_UChar = btUChar, /* unsigned character */
699 bt_Short = btShort, /* short */
700 bt_UShort = btUShort, /* unsigned short */
701 bt_Int = btInt, /* int */
702 bt_UInt = btUInt, /* unsigned int */
703 bt_Long = btLong, /* long */
704 bt_ULong = btULong, /* unsigned long */
705 bt_Float = btFloat, /* float (real) */
706 bt_Double = btDouble, /* Double (real) */
707 bt_Struct = btStruct, /* Structure (Record) */
708 bt_Union = btUnion, /* Union (variant) */
709 bt_Enum = btEnum, /* Enumerated */
710 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
711 bt_Range = btRange, /* subrange of int */
712 bt_Set = btSet, /* pascal sets */
713 bt_Complex = btComplex, /* fortran complex */
714 bt_DComplex = btDComplex, /* fortran double complex */
715 bt_Indirect = btIndirect, /* forward or unnamed typedef */
716 bt_FixedDec = btFixedDec, /* Fixed Decimal */
717 bt_FloatDec = btFloatDec, /* Float Decimal */
718 bt_String = btString, /* Varying Length Character String */
719 bt_Bit = btBit, /* Aligned Bit String */
720 bt_Picture = btPicture, /* Picture */
721 bt_Void = btVoid, /* Void */
722 bt_Max = btMax /* Max basic type+1 */
723} bt_t;
724
725#define N_TQ itqMax
726
727/* States for whether to hash type or not. */
728typedef enum hash_state {
729 hash_no = 0, /* don't hash type */
730 hash_yes = 1, /* ok to hash type, or use previous hash */
731 hash_record = 2 /* ok to record hash, but don't use prev. */
732} hash_state_t;
733
734/* Types of different sized allocation requests. */
735enum alloc_type {
736 alloc_type_none, /* dummy value */
737 alloc_type_scope, /* nested scopes linked list */
738 alloc_type_vlinks, /* glue linking pages in varray */
739 alloc_type_shash, /* string hash element */
740 alloc_type_thash, /* type hash element */
741 alloc_type_tag, /* struct/union/tag element */
742 alloc_type_forward, /* element to hold unknown tag */
743 alloc_type_thead, /* head of type hash list */
744 alloc_type_varray, /* general varray allocation */
745 alloc_type_lineno, /* line number list */
746 alloc_type_last /* last+1 element for array bounds */
747};
748
749/* Types of auxiliary type information. */
750enum aux_type {
751 aux_tir, /* TIR type information */
752 aux_rndx, /* relative index into symbol table */
753 aux_dnLow, /* low dimension */
754 aux_dnHigh, /* high dimension */
755 aux_isym, /* symbol table index (end of proc) */
756 aux_iss, /* index into string space (not used) */
757 aux_width, /* width for non-default sized struc fields */
758 aux_count /* count of ranges for variant arm */
759};
760\f
761/* Structures to provide n-number of virtual arrays, each of which can
762 grow linearly, and which are written in the object file as
763 sequential pages. On systems with a BSD malloc, the
764 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
765 malloc adds it's overhead, and rounds up to the next power of 2.
766 Pages are linked together via a linked list.
767
768 If PAGE_SIZE is > 4096, the string length in the shash_t structure
769 can't be represented (assuming there are strings > 4096 bytes). */
770
771/* FIXME: Yes, there can be such strings while emitting C++ class debug
772 info. Templates are the offender here, the test case in question
773 having a mangled class name of
774
775 t7rb_tree4Z4xkeyZt4pair2ZC4xkeyZt7xsocket1Z4UserZt9select1st2Zt4pair\
776 2ZC4xkeyZt7xsocket1Z4UserZ4xkeyZt4less1Z4xkey
777
778 Repeat that a couple dozen times while listing the class members and
779 you've got strings over 4k. Hack around this for now by increasing
780 the page size. A proper solution would abandon this structure scheme
781 certainly for very large strings, and possibly entirely. */
782
783#ifndef PAGE_SIZE
784#define PAGE_SIZE (8*1024) /* size of varray pages */
785#endif
786
787#define PAGE_USIZE ((unsigned long) PAGE_SIZE)
788
789#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
790#define MAX_CLUSTER_PAGES 63
791#endif
792
793/* Linked list connecting separate page allocations. */
794typedef struct vlinks {
795 struct vlinks *prev; /* previous set of pages */
796 struct vlinks *next; /* next set of pages */
797 union page *datum; /* start of page */
798 unsigned long start_index; /* starting index # of page */
799} vlinks_t;
800
801
802/* Virtual array header. */
803typedef struct varray {
804 vlinks_t *first; /* first page link */
805 vlinks_t *last; /* last page link */
806 unsigned long num_allocated; /* # objects allocated */
807 unsigned short object_size; /* size in bytes of each object */
808 unsigned short objects_per_page; /* # objects that can fit on a page */
809 unsigned short objects_last_page; /* # objects allocated on last page */
810} varray_t;
811
812#ifndef MALLOC_CHECK
813#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
814#else
815#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
816#endif
817
818#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
819 (vlinks_t *)0, /* first */ \
820 (vlinks_t *)0, /* last */ \
821 0, /* num_allocated */ \
822 sizeof (type), /* object_size */ \
823 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
824 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
825}
826
827
828/* Master type for indexes within the symbol table. */
829typedef unsigned long symint_t;
830
831
832/* Linked list support for nested scopes (file, block, structure, etc.). */
833typedef struct scope {
834 struct scope *prev; /* previous scope level */
835 struct scope *free; /* free list pointer */
836 struct localsym *lsym; /* pointer to local symbol node */
837 st_t type; /* type of the node */
838} scope_t;
839
840
841/* For a local symbol we store a gas symbol as well as the debugging
842 information we generate. The gas symbol will be NULL if this is
843 only a debugging symbol. */
844typedef struct localsym {
845 const char *name; /* symbol name */
846 symbolS *as_sym; /* symbol as seen by gas */
847 bfd_vma addend; /* addend to as_sym value */
848 struct efdr *file_ptr; /* file pointer */
849 struct ecoff_proc *proc_ptr; /* proc pointer */
850 struct localsym *begin_ptr; /* symbol at start of block */
851 struct ecoff_aux *index_ptr; /* index value to be filled in */
852 struct forward *forward_ref; /* forward references to this symbol */
853 long sym_index; /* final symbol index */
854 EXTR ecoff_sym; /* ECOFF debugging symbol */
855} localsym_t;
856
857
858/* For aux information we keep the type and the data. */
859typedef struct ecoff_aux {
860 enum aux_type type; /* aux type */
861 AUXU data; /* aux data */
862} aux_t;
863
864/* For a procedure we store the gas symbol as well as the PDR
865 debugging information. */
866typedef struct ecoff_proc {
867 localsym_t *sym; /* associated symbol */
868 PDR pdr; /* ECOFF debugging info */
869} proc_t;
870
871/* Number of proc_t structures allocated. */
872static unsigned long proc_cnt;
873
874
875/* Forward reference list for tags referenced, but not yet defined. */
876typedef struct forward {
877 struct forward *next; /* next forward reference */
878 struct forward *free; /* free list pointer */
879 aux_t *ifd_ptr; /* pointer to store file index */
880 aux_t *index_ptr; /* pointer to store symbol index */
881} forward_t;
882
883
884/* Linked list support for tags. The first tag in the list is always
885 the current tag for that block. */
886typedef struct tag {
887 struct tag *free; /* free list pointer */
888 struct shash *hash_ptr; /* pointer to the hash table head */
889 struct tag *same_name; /* tag with same name in outer scope */
890 struct tag *same_block; /* next tag defined in the same block. */
891 struct forward *forward_ref; /* list of forward references */
892 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
893 symint_t ifd; /* file # tag defined in */
894 localsym_t *sym; /* file's local symbols */
895} tag_t;
896
897
898/* Head of a block's linked list of tags. */
899typedef struct thead {
900 struct thead *prev; /* previous block */
901 struct thead *free; /* free list pointer */
902 struct tag *first_tag; /* first tag in block defined */
903} thead_t;
904
905
906/* Union containing pointers to each the small structures which are freed up. */
907typedef union small_free {
908 scope_t *f_scope; /* scope structure */
909 thead_t *f_thead; /* tag head structure */
910 tag_t *f_tag; /* tag element structure */
911 forward_t *f_forward; /* forward tag reference */
912} small_free_t;
913
914
915/* String hash table entry. */
916
917typedef struct shash {
918 char *string; /* string we are hashing */
919 symint_t indx; /* index within string table */
920 EXTR *esym_ptr; /* global symbol pointer */
921 localsym_t *sym_ptr; /* local symbol pointer */
922 localsym_t *end_ptr; /* symbol pointer to end block */
923 tag_t *tag_ptr; /* tag pointer */
924 proc_t *proc_ptr; /* procedure descriptor pointer */
925} shash_t;
926
927
928/* Type hash table support. The size of the hash table must fit
929 within a page with the other extended file descriptor information.
930 Because unique types which are hashed are fewer in number than
931 strings, we use a smaller hash value. */
932
933#define HASHBITS 30
934
935#ifndef THASH_SIZE
936#define THASH_SIZE 113
937#endif
938
939typedef struct thash {
940 struct thash *next; /* next hash value */
941 AUXU type; /* type we are hashing */
942 symint_t indx; /* index within string table */
943} thash_t;
944
945
946/* Extended file descriptor that contains all of the support necessary
947 to add things to each file separately. */
948typedef struct efdr {
949 FDR fdr; /* File header to be written out */
950 FDR *orig_fdr; /* original file header */
951 char *name; /* filename */
952 int fake; /* whether this is faked .file */
953 symint_t void_type; /* aux. pointer to 'void' type */
954 symint_t int_type; /* aux. pointer to 'int' type */
955 scope_t *cur_scope; /* current nested scopes */
956 symint_t file_index; /* current file number */
957 int nested_scopes; /* # nested scopes */
958 varray_t strings; /* local strings */
959 varray_t symbols; /* local symbols */
960 varray_t procs; /* procedures */
961 varray_t aux_syms; /* auxiliary symbols */
962 struct efdr *next_file; /* next file descriptor */
963 /* string/type hash tables */
964 struct hash_control *str_hash; /* string hash table */
965 thash_t *thash_head[THASH_SIZE];
966} efdr_t;
967
968/* Pre-initialized extended file structure. */
969static const efdr_t init_file =
970{
971 { /* FDR structure */
972 0, /* adr: memory address of beginning of file */
973 0, /* rss: file name (of source, if known) */
974 0, /* issBase: file's string space */
975 0, /* cbSs: number of bytes in the ss */
976 0, /* isymBase: beginning of symbols */
977 0, /* csym: count file's of symbols */
978 0, /* ilineBase: file's line symbols */
979 0, /* cline: count of file's line symbols */
980 0, /* ioptBase: file's optimization entries */
981 0, /* copt: count of file's optimization entries */
982 0, /* ipdFirst: start of procedures for this file */
983 0, /* cpd: count of procedures for this file */
984 0, /* iauxBase: file's auxiliary entries */
985 0, /* caux: count of file's auxiliary entries */
986 0, /* rfdBase: index into the file indirect table */
987 0, /* crfd: count file indirect entries */
988 langC, /* lang: language for this file */
989 1, /* fMerge: whether this file can be merged */
990 0, /* fReadin: true if read in (not just created) */
991 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
992 GLEVEL_2, /* glevel: level this file was compiled with */
993 0, /* reserved: reserved for future use */
994 0, /* cbLineOffset: byte offset from header for this file ln's */
995 0, /* cbLine: size of lines for this file */
996 },
997
998 (FDR *)0, /* orig_fdr: original file header pointer */
999 (char *)0, /* name: pointer to filename */
1000 0, /* fake: whether this is a faked .file */
1001 0, /* void_type: ptr to aux node for void type */
1002 0, /* int_type: ptr to aux node for int type */
1003 (scope_t *)0, /* cur_scope: current scope being processed */
1004 0, /* file_index: current file # */
1005 0, /* nested_scopes: # nested scopes */
1006 INIT_VARRAY (char), /* strings: local string varray */
1007 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
1008 INIT_VARRAY (proc_t), /* procs: procedure varray */
1009 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1010
1011 (struct efdr *)0, /* next_file: next file structure */
1012
1013 (struct hash_control *)0, /* str_hash: string hash table */
1014 { 0 }, /* thash_head: type hash table */
1015};
1016
1017
1018static efdr_t *first_file; /* first file descriptor */
1019static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1020
1021
1022/* Line number information is kept in a list until the assembly is
1023 finished. */
1024typedef struct lineno_list {
1025 struct lineno_list *next; /* next element in list */
1026 efdr_t *file; /* file this line is in */
1027 proc_t *proc; /* procedure this line is in */
1028 fragS *frag; /* fragment this line number is in */
1029 unsigned long paddr; /* offset within fragment */
1030 long lineno; /* actual line number */
1031} lineno_list_t;
1032
1033static lineno_list_t *first_lineno;
1034static lineno_list_t *last_lineno;
1035static lineno_list_t **last_lineno_ptr = &first_lineno;
1036
1037/* Sometimes there will be some .loc statements before a .ent. We
1038 keep them in this list so that we can fill in the procedure pointer
1039 after we see the .ent. */
1040static lineno_list_t *noproc_lineno;
1041
1042/* Union of various things that are held in pages. */
1043typedef union page {
1044 char byte [ PAGE_SIZE ];
1045 unsigned char ubyte [ PAGE_SIZE ];
1046 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1047 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1048 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1049 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1050 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1051 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1052 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1053 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1054 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1055 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1056 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1057 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1058 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1059 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1060} page_type;
1061
1062
1063/* Structure holding allocation information for small sized structures. */
1064typedef struct alloc_info {
1065 char *alloc_name; /* name of this allocation type (must be first) */
1066 page_type *cur_page; /* current page being allocated from */
1067 small_free_t free_list; /* current free list if any */
1068 int unallocated; /* number of elements unallocated on page */
1069 int total_alloc; /* total number of allocations */
1070 int total_free; /* total number of frees */
1071 int total_pages; /* total number of pages allocated */
1072} alloc_info_t;
1073
1074
1075/* Type information collected together. */
1076typedef struct type_info {
1077 bt_t basic_type; /* basic type */
1078 int orig_type; /* original COFF-based type */
1079 int num_tq; /* # type qualifiers */
1080 int num_dims; /* # dimensions */
1081 int num_sizes; /* # sizes */
1082 int extra_sizes; /* # extra sizes not tied with dims */
1083 tag_t * tag_ptr; /* tag pointer */
1084 int bitfield; /* symbol is a bitfield */
1085 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1086 symint_t dimensions [N_TQ]; /* dimensions for each array */
1087 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1088 struct/union/enum + bitfield size */
1089} type_info_t;
1090
1091/* Pre-initialized type_info struct. */
1092static const type_info_t type_info_init = {
1093 bt_Nil, /* basic type */
1094 T_NULL, /* original COFF-based type */
1095 0, /* # type qualifiers */
1096 0, /* # dimensions */
1097 0, /* # sizes */
1098 0, /* sizes not tied with dims */
1099 NULL, /* ptr to tag */
1100 0, /* bitfield */
1101 { /* type qualifiers */
1102 tq_Nil,
1103 tq_Nil,
1104 tq_Nil,
1105 tq_Nil,
1106 tq_Nil,
1107 tq_Nil,
1108 },
1109 { /* dimensions */
1110 0,
1111 0,
1112 0,
1113 0,
1114 0,
1115 0
1116 },
1117 { /* sizes */
1118 0,
1119 0,
1120 0,
1121 0,
1122 0,
1123 0,
1124 0,
1125 0,
1126 },
1127};
1128
1129/* Global hash table for the tags table and global table for file
1130 descriptors. */
1131
1132static varray_t file_desc = INIT_VARRAY (efdr_t);
1133
1134static struct hash_control *tag_hash;
1135
1136/* Static types for int and void. Also, remember the last function's
1137 type (which is set up when we encounter the declaration for the
1138 function, and used when the end block for the function is emitted. */
1139
1140static type_info_t int_type_info;
1141static type_info_t void_type_info;
1142static type_info_t last_func_type_info;
1143static symbolS *last_func_sym_value;
1144
1145
1146/* Convert COFF basic type to ECOFF basic type. The T_NULL type
1147 really should use bt_Void, but this causes the current ecoff GDB to
1148 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1149 2.0) doesn't understand it, even though the compiler generates it.
1150 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1151 suite, but for now go with what works.
1152
1153 It would make sense for the .type and .scl directives to use the
1154 ECOFF numbers directly, rather than using the COFF numbers and
1155 mapping them. Unfortunately, this is historically what mips-tfile
1156 expects, and changing gcc now would be a considerable pain (the
1157 native compiler generates debugging information internally, rather
1158 than via the assembler, so it will never use .type or .scl). */
1159
1160static const bt_t map_coff_types[] = {
1161 bt_Nil, /* T_NULL */
1162 bt_Nil, /* T_ARG */
1163 bt_Char, /* T_CHAR */
1164 bt_Short, /* T_SHORT */
1165 bt_Int, /* T_INT */
1166 bt_Long, /* T_LONG */
1167 bt_Float, /* T_FLOAT */
1168 bt_Double, /* T_DOUBLE */
1169 bt_Struct, /* T_STRUCT */
1170 bt_Union, /* T_UNION */
1171 bt_Enum, /* T_ENUM */
1172 bt_Enum, /* T_MOE */
1173 bt_UChar, /* T_UCHAR */
1174 bt_UShort, /* T_USHORT */
1175 bt_UInt, /* T_UINT */
1176 bt_ULong /* T_ULONG */
1177};
1178
1179/* Convert COFF storage class to ECOFF storage class. */
1180static const sc_t map_coff_storage[] = {
1181 sc_Nil, /* 0: C_NULL */
1182 sc_Abs, /* 1: C_AUTO auto var */
1183 sc_Undefined, /* 2: C_EXT external */
1184 sc_Data, /* 3: C_STAT static */
1185 sc_Register, /* 4: C_REG register */
1186 sc_Undefined, /* 5: C_EXTDEF ??? */
1187 sc_Text, /* 6: C_LABEL label */
1188 sc_Text, /* 7: C_ULABEL user label */
1189 sc_Info, /* 8: C_MOS member of struct */
1190 sc_Abs, /* 9: C_ARG argument */
1191 sc_Info, /* 10: C_STRTAG struct tag */
1192 sc_Info, /* 11: C_MOU member of union */
1193 sc_Info, /* 12: C_UNTAG union tag */
1194 sc_Info, /* 13: C_TPDEF typedef */
1195 sc_Data, /* 14: C_USTATIC ??? */
1196 sc_Info, /* 15: C_ENTAG enum tag */
1197 sc_Info, /* 16: C_MOE member of enum */
1198 sc_Register, /* 17: C_REGPARM register parameter */
1199 sc_Bits, /* 18; C_FIELD bitfield */
1200 sc_Nil, /* 19 */
1201 sc_Nil, /* 20 */
1202 sc_Nil, /* 21 */
1203 sc_Nil, /* 22 */
1204 sc_Nil, /* 23 */
1205 sc_Nil, /* 24 */
1206 sc_Nil, /* 25 */
1207 sc_Nil, /* 26 */
1208 sc_Nil, /* 27 */
1209 sc_Nil, /* 28 */
1210 sc_Nil, /* 29 */
1211 sc_Nil, /* 30 */
1212 sc_Nil, /* 31 */
1213 sc_Nil, /* 32 */
1214 sc_Nil, /* 33 */
1215 sc_Nil, /* 34 */
1216 sc_Nil, /* 35 */
1217 sc_Nil, /* 36 */
1218 sc_Nil, /* 37 */
1219 sc_Nil, /* 38 */
1220 sc_Nil, /* 39 */
1221 sc_Nil, /* 40 */
1222 sc_Nil, /* 41 */
1223 sc_Nil, /* 42 */
1224 sc_Nil, /* 43 */
1225 sc_Nil, /* 44 */
1226 sc_Nil, /* 45 */
1227 sc_Nil, /* 46 */
1228 sc_Nil, /* 47 */
1229 sc_Nil, /* 48 */
1230 sc_Nil, /* 49 */
1231 sc_Nil, /* 50 */
1232 sc_Nil, /* 51 */
1233 sc_Nil, /* 52 */
1234 sc_Nil, /* 53 */
1235 sc_Nil, /* 54 */
1236 sc_Nil, /* 55 */
1237 sc_Nil, /* 56 */
1238 sc_Nil, /* 57 */
1239 sc_Nil, /* 58 */
1240 sc_Nil, /* 59 */
1241 sc_Nil, /* 60 */
1242 sc_Nil, /* 61 */
1243 sc_Nil, /* 62 */
1244 sc_Nil, /* 63 */
1245 sc_Nil, /* 64 */
1246 sc_Nil, /* 65 */
1247 sc_Nil, /* 66 */
1248 sc_Nil, /* 67 */
1249 sc_Nil, /* 68 */
1250 sc_Nil, /* 69 */
1251 sc_Nil, /* 70 */
1252 sc_Nil, /* 71 */
1253 sc_Nil, /* 72 */
1254 sc_Nil, /* 73 */
1255 sc_Nil, /* 74 */
1256 sc_Nil, /* 75 */
1257 sc_Nil, /* 76 */
1258 sc_Nil, /* 77 */
1259 sc_Nil, /* 78 */
1260 sc_Nil, /* 79 */
1261 sc_Nil, /* 80 */
1262 sc_Nil, /* 81 */
1263 sc_Nil, /* 82 */
1264 sc_Nil, /* 83 */
1265 sc_Nil, /* 84 */
1266 sc_Nil, /* 85 */
1267 sc_Nil, /* 86 */
1268 sc_Nil, /* 87 */
1269 sc_Nil, /* 88 */
1270 sc_Nil, /* 89 */
1271 sc_Nil, /* 90 */
1272 sc_Nil, /* 91 */
1273 sc_Nil, /* 92 */
1274 sc_Nil, /* 93 */
1275 sc_Nil, /* 94 */
1276 sc_Nil, /* 95 */
1277 sc_Nil, /* 96 */
1278 sc_Nil, /* 97 */
1279 sc_Nil, /* 98 */
1280 sc_Nil, /* 99 */
1281 sc_Text, /* 100: C_BLOCK block start/end */
1282 sc_Text, /* 101: C_FCN function start/end */
1283 sc_Info, /* 102: C_EOS end of struct/union/enum */
1284 sc_Nil, /* 103: C_FILE file start */
1285 sc_Nil, /* 104: C_LINE line number */
1286 sc_Nil, /* 105: C_ALIAS combined type info */
1287 sc_Nil, /* 106: C_HIDDEN ??? */
1288};
1289
1290/* Convert COFF storage class to ECOFF symbol type. */
1291static const st_t map_coff_sym_type[] = {
1292 st_Nil, /* 0: C_NULL */
1293 st_Local, /* 1: C_AUTO auto var */
1294 st_Global, /* 2: C_EXT external */
1295 st_Static, /* 3: C_STAT static */
1296 st_Local, /* 4: C_REG register */
1297 st_Global, /* 5: C_EXTDEF ??? */
1298 st_Label, /* 6: C_LABEL label */
1299 st_Label, /* 7: C_ULABEL user label */
1300 st_Member, /* 8: C_MOS member of struct */
1301 st_Param, /* 9: C_ARG argument */
1302 st_Block, /* 10: C_STRTAG struct tag */
1303 st_Member, /* 11: C_MOU member of union */
1304 st_Block, /* 12: C_UNTAG union tag */
1305 st_Typedef, /* 13: C_TPDEF typedef */
1306 st_Static, /* 14: C_USTATIC ??? */
1307 st_Block, /* 15: C_ENTAG enum tag */
1308 st_Member, /* 16: C_MOE member of enum */
1309 st_Param, /* 17: C_REGPARM register parameter */
1310 st_Member, /* 18; C_FIELD bitfield */
1311 st_Nil, /* 19 */
1312 st_Nil, /* 20 */
1313 st_Nil, /* 21 */
1314 st_Nil, /* 22 */
1315 st_Nil, /* 23 */
1316 st_Nil, /* 24 */
1317 st_Nil, /* 25 */
1318 st_Nil, /* 26 */
1319 st_Nil, /* 27 */
1320 st_Nil, /* 28 */
1321 st_Nil, /* 29 */
1322 st_Nil, /* 30 */
1323 st_Nil, /* 31 */
1324 st_Nil, /* 32 */
1325 st_Nil, /* 33 */
1326 st_Nil, /* 34 */
1327 st_Nil, /* 35 */
1328 st_Nil, /* 36 */
1329 st_Nil, /* 37 */
1330 st_Nil, /* 38 */
1331 st_Nil, /* 39 */
1332 st_Nil, /* 40 */
1333 st_Nil, /* 41 */
1334 st_Nil, /* 42 */
1335 st_Nil, /* 43 */
1336 st_Nil, /* 44 */
1337 st_Nil, /* 45 */
1338 st_Nil, /* 46 */
1339 st_Nil, /* 47 */
1340 st_Nil, /* 48 */
1341 st_Nil, /* 49 */
1342 st_Nil, /* 50 */
1343 st_Nil, /* 51 */
1344 st_Nil, /* 52 */
1345 st_Nil, /* 53 */
1346 st_Nil, /* 54 */
1347 st_Nil, /* 55 */
1348 st_Nil, /* 56 */
1349 st_Nil, /* 57 */
1350 st_Nil, /* 58 */
1351 st_Nil, /* 59 */
1352 st_Nil, /* 60 */
1353 st_Nil, /* 61 */
1354 st_Nil, /* 62 */
1355 st_Nil, /* 63 */
1356 st_Nil, /* 64 */
1357 st_Nil, /* 65 */
1358 st_Nil, /* 66 */
1359 st_Nil, /* 67 */
1360 st_Nil, /* 68 */
1361 st_Nil, /* 69 */
1362 st_Nil, /* 70 */
1363 st_Nil, /* 71 */
1364 st_Nil, /* 72 */
1365 st_Nil, /* 73 */
1366 st_Nil, /* 74 */
1367 st_Nil, /* 75 */
1368 st_Nil, /* 76 */
1369 st_Nil, /* 77 */
1370 st_Nil, /* 78 */
1371 st_Nil, /* 79 */
1372 st_Nil, /* 80 */
1373 st_Nil, /* 81 */
1374 st_Nil, /* 82 */
1375 st_Nil, /* 83 */
1376 st_Nil, /* 84 */
1377 st_Nil, /* 85 */
1378 st_Nil, /* 86 */
1379 st_Nil, /* 87 */
1380 st_Nil, /* 88 */
1381 st_Nil, /* 89 */
1382 st_Nil, /* 90 */
1383 st_Nil, /* 91 */
1384 st_Nil, /* 92 */
1385 st_Nil, /* 93 */
1386 st_Nil, /* 94 */
1387 st_Nil, /* 95 */
1388 st_Nil, /* 96 */
1389 st_Nil, /* 97 */
1390 st_Nil, /* 98 */
1391 st_Nil, /* 99 */
1392 st_Block, /* 100: C_BLOCK block start/end */
1393 st_Proc, /* 101: C_FCN function start/end */
1394 st_End, /* 102: C_EOS end of struct/union/enum */
1395 st_File, /* 103: C_FILE file start */
1396 st_Nil, /* 104: C_LINE line number */
1397 st_Nil, /* 105: C_ALIAS combined type info */
1398 st_Nil, /* 106: C_HIDDEN ??? */
1399};
1400
1401
1402/* Keep track of different sized allocation requests. */
1403static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1404\f
1405/* Record whether we have seen any debugging information. */
1406int ecoff_debugging_seen = 0;
1407
1408/* Various statics. */
1409static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1410static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1411static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
1412static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1413static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1414#ifdef ECOFF_DEBUG
1415static int debug = 0; /* trace functions */
1416#endif
1417static int stabs_seen = 0; /* != 0 if stabs have been seen */
1418
1419static int current_file_idx;
1420static const char *current_stabs_filename;
1421
1422/* Pseudo symbol to use when putting stabs into the symbol table. */
1423#ifndef STABS_SYMBOL
1424#define STABS_SYMBOL "@stabs"
1425#endif
1426
1427static char stabs_symbol[] = STABS_SYMBOL;
1428\f
1429/* Prototypes for functions defined in this file. */
1430
1431static void add_varray_page PARAMS ((varray_t *vp));
1432static symint_t add_string PARAMS ((varray_t *vp,
1433 struct hash_control *hash_tbl,
1434 const char *str,
1435 shash_t **ret_hash));
1436static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1437 sc_t storage, symbolS *sym,
1438 bfd_vma addend, symint_t value,
1439 symint_t indx));
1440static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1441static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1442 symint_t sym_index));
1443static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1444 hash_state_t state,
1445 thash_t **hash_tbl));
1446static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1447 bt_t basic_type));
1448static void add_unknown_tag PARAMS ((tag_t *ptag));
1449static void add_procedure PARAMS ((char *func));
1450static void add_file PARAMS ((const char *file_name, int indx, int fake));
1451#ifdef ECOFF_DEBUG
1452static char *sc_to_string PARAMS ((sc_t storage_class));
1453static char *st_to_string PARAMS ((st_t symbol_type));
1454#endif
1455static void mark_stabs PARAMS ((int));
1456static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1457 char *bufptr, unsigned long need));
1458static unsigned long ecoff_padding_adjust
1459 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1460 unsigned long offset, char **bufptrptr));
1461static unsigned long ecoff_build_lineno
1462 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1463 unsigned long offset, long *linecntptr));
1464static unsigned long ecoff_build_symbols
1465 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1466 unsigned long offset));
1467static unsigned long ecoff_build_procs
1468 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1469 unsigned long offset));
1470static unsigned long ecoff_build_aux
1471 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1472 unsigned long offset));
1473static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1474 unsigned long offset,
1475 varray_t *vp));
1476static unsigned long ecoff_build_ss
1477 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1478 unsigned long offset));
1479static unsigned long ecoff_build_fdr
1480 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1481 unsigned long offset));
1482static void ecoff_setup_ext PARAMS ((void));
1483static page_type *allocate_cluster PARAMS ((unsigned long npages));
1484static page_type *allocate_page PARAMS ((void));
1485static scope_t *allocate_scope PARAMS ((void));
1486static void free_scope PARAMS ((scope_t *ptr));
1487static vlinks_t *allocate_vlinks PARAMS ((void));
1488static shash_t *allocate_shash PARAMS ((void));
1489static thash_t *allocate_thash PARAMS ((void));
1490static tag_t *allocate_tag PARAMS ((void));
1491static void free_tag PARAMS ((tag_t *ptr));
1492static forward_t *allocate_forward PARAMS ((void));
1493static thead_t *allocate_thead PARAMS ((void));
1494static void free_thead PARAMS ((thead_t *ptr));
1495static lineno_list_t *allocate_lineno_list PARAMS ((void));
1496\f
1497/* This function should be called when the assembler starts up. */
1498
1499void
1500ecoff_read_begin_hook ()
1501{
1502 tag_hash = hash_new ();
1503 top_tag_head = allocate_thead ();
1504 top_tag_head->first_tag = (tag_t *) NULL;
1505 top_tag_head->free = (thead_t *) NULL;
1506 top_tag_head->prev = cur_tag_head;
1507 cur_tag_head = top_tag_head;
1508}
1509
1510/* This function should be called when a symbol is created. */
1511
1512void
1513ecoff_symbol_new_hook (symbolP)
1514 symbolS *symbolP;
1515{
1516 /* Make sure that we have a file pointer, but only if we have seen a
1517 file. If we haven't seen a file, then this is a probably special
1518 symbol created by md_begin which may required special handling at
1519 some point. Creating a dummy file with a dummy name is certainly
1520 wrong. */
1521 if (cur_file_ptr == (efdr_t *) NULL
1522 && seen_at_least_1_file ())
1523 add_file ((const char *) NULL, 0, 1);
1524 symbolP->ecoff_file = cur_file_ptr;
1525 symbolP->ecoff_symbol = NULL;
1526 symbolP->ecoff_extern_size = 0;
1527}
1528\f
1529/* Add a page to a varray object. */
1530
1531static void
1532add_varray_page (vp)
1533 varray_t *vp; /* varray to add page to */
1534{
1535 vlinks_t *new_links = allocate_vlinks ();
1536
1537#ifdef MALLOC_CHECK
1538 if (vp->object_size > 1)
1539 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
1540 else
1541#endif
1542 new_links->datum = allocate_page ();
1543
1544 alloc_counts[(int)alloc_type_varray].total_alloc++;
1545 alloc_counts[(int)alloc_type_varray].total_pages++;
1546
1547 new_links->start_index = vp->num_allocated;
1548 vp->objects_last_page = 0;
1549
1550 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1551 vp->first = vp->last = new_links;
1552 else
1553 { /* 2nd or greater allocation */
1554 new_links->prev = vp->last;
1555 vp->last->next = new_links;
1556 vp->last = new_links;
1557 }
1558}
1559\f
1560/* Add a string (and null pad) to one of the string tables. */
1561
1562static symint_t
1563add_string (vp, hash_tbl, str, ret_hash)
1564 varray_t *vp; /* string obstack */
1565 struct hash_control *hash_tbl; /* ptr to hash table */
1566 const char *str; /* string */
1567 shash_t **ret_hash; /* return hash pointer */
1568{
1569 register unsigned long len = strlen (str);
1570 register shash_t *hash_ptr;
1571
1572 if (len >= PAGE_USIZE)
1573 as_fatal (_("String too big (%lu bytes)"), len);
1574
1575 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1576 if (hash_ptr == (shash_t *) NULL)
1577 {
1578 register const char *err;
1579
1580 if (vp->objects_last_page + len >= PAGE_USIZE)
1581 {
1582 vp->num_allocated =
1583 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1584 add_varray_page (vp);
1585 }
1586
1587 hash_ptr = allocate_shash ();
1588 hash_ptr->indx = vp->num_allocated;
1589
1590 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1591
1592 vp->objects_last_page += len + 1;
1593 vp->num_allocated += len + 1;
1594
1595 strcpy (hash_ptr->string, str);
1596
1597 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1598 if (err)
1599 as_fatal (_("Inserting \"%s\" into string hash table: %s"),
1600 str, err);
1601 }
1602
1603 if (ret_hash != (shash_t **) NULL)
1604 *ret_hash = hash_ptr;
1605
1606 return hash_ptr->indx;
1607}
1608\f
1609/* Add debugging information for a symbol. */
1610
1611static localsym_t *
1612add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
1613 const char *str; /* symbol name */
1614 st_t type; /* symbol type */
1615 sc_t storage; /* storage class */
1616 symbolS *sym_value; /* associated symbol. */
1617 bfd_vma addend; /* addend to sym_value. */
1618 symint_t value; /* value of symbol */
1619 symint_t indx; /* index to local/aux. syms */
1620{
1621 localsym_t *psym;
1622 register scope_t *pscope;
1623 register thead_t *ptag_head;
1624 register tag_t *ptag;
1625 register tag_t *ptag_next;
1626 register varray_t *vp;
1627 register int scope_delta = 0;
1628 shash_t *hash_ptr = (shash_t *) NULL;
1629
1630 if (cur_file_ptr == (efdr_t *) NULL)
1631 as_fatal (_("no current file pointer"));
1632
1633 vp = &cur_file_ptr->symbols;
1634
1635 if (vp->objects_last_page == vp->objects_per_page)
1636 add_varray_page (vp);
1637
1638 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1639
1640 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1641 psym->name = S_GET_NAME (sym_value);
1642 else
1643 psym->name = str;
1644 psym->as_sym = sym_value;
1645 if (sym_value != (symbolS *) NULL)
1646 sym_value->ecoff_symbol = psym;
1647 psym->addend = addend;
1648 psym->file_ptr = cur_file_ptr;
1649 psym->proc_ptr = cur_proc_ptr;
1650 psym->begin_ptr = (localsym_t *) NULL;
1651 psym->index_ptr = (aux_t *) NULL;
1652 psym->forward_ref = (forward_t *) NULL;
1653 psym->sym_index = -1;
1654 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1655 psym->ecoff_sym.asym.value = value;
1656 psym->ecoff_sym.asym.st = (unsigned) type;
1657 psym->ecoff_sym.asym.sc = (unsigned) storage;
1658 psym->ecoff_sym.asym.index = indx;
1659
1660 /* If there is an associated symbol, we wait until the end of the
1661 assembly before deciding where to put the name (it may be just an
1662 external symbol). Otherwise, this is just a debugging symbol and
1663 the name should go with the current file. */
1664 if (sym_value == (symbolS *) NULL)
1665 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1666 ? 0
1667 : add_string (&cur_file_ptr->strings,
1668 cur_file_ptr->str_hash,
1669 str,
1670 &hash_ptr));
1671
1672 ++vp->num_allocated;
1673
1674 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1675 return psym;
1676
1677 /* Save the symbol within the hash table if this is a static
1678 item, and it has a name. */
1679 if (hash_ptr != (shash_t *) NULL
1680 && (type == st_Global || type == st_Static || type == st_Label
1681 || type == st_Proc || type == st_StaticProc))
1682 hash_ptr->sym_ptr = psym;
1683
1684 /* push or pop a scope if appropriate. */
1685 switch (type)
1686 {
1687 default:
1688 break;
1689
1690 case st_File: /* beginning of file */
1691 case st_Proc: /* procedure */
1692 case st_StaticProc: /* static procedure */
1693 case st_Block: /* begin scope */
1694 pscope = allocate_scope ();
1695 pscope->prev = cur_file_ptr->cur_scope;
1696 pscope->lsym = psym;
1697 pscope->type = type;
1698 cur_file_ptr->cur_scope = pscope;
1699
1700 if (type != st_File)
1701 scope_delta = 1;
1702
1703 /* For every block type except file, struct, union, or
1704 enumeration blocks, push a level on the tag stack. We omit
1705 file types, so that tags can span file boundaries. */
1706 if (type != st_File && storage != sc_Info)
1707 {
1708 ptag_head = allocate_thead ();
1709 ptag_head->first_tag = 0;
1710 ptag_head->prev = cur_tag_head;
1711 cur_tag_head = ptag_head;
1712 }
1713 break;
1714
1715 case st_End:
1716 pscope = cur_file_ptr->cur_scope;
1717 if (pscope == (scope_t *) NULL)
1718 as_fatal (_("too many st_End's"));
1719 else
1720 {
1721 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1722
1723 psym->begin_ptr = pscope->lsym;
1724
1725 if (begin_type != st_File)
1726 scope_delta = -1;
1727
1728 /* Except for file, structure, union, or enumeration end
1729 blocks remove all tags created within this scope. */
1730 if (begin_type != st_File && storage != sc_Info)
1731 {
1732 ptag_head = cur_tag_head;
1733 cur_tag_head = ptag_head->prev;
1734
1735 for (ptag = ptag_head->first_tag;
1736 ptag != (tag_t *) NULL;
1737 ptag = ptag_next)
1738 {
1739 if (ptag->forward_ref != (forward_t *) NULL)
1740 add_unknown_tag (ptag);
1741
1742 ptag_next = ptag->same_block;
1743 ptag->hash_ptr->tag_ptr = ptag->same_name;
1744 free_tag (ptag);
1745 }
1746
1747 free_thead (ptag_head);
1748 }
1749
1750 cur_file_ptr->cur_scope = pscope->prev;
1751
1752 /* block begin gets next sym #. This is set when we know
1753 the symbol index value. */
1754
1755 /* Functions push two or more aux words as follows:
1756 1st word: index+1 of the end symbol (filled in later).
1757 2nd word: type of the function (plus any aux words needed).
1758 Also, tie the external pointer back to the function begin symbol. */
1759 if (begin_type != st_File && begin_type != st_Block)
1760 {
1761 symint_t ty;
1762 varray_t *svp = &cur_file_ptr->aux_syms;
1763
1764 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1765 pscope->lsym->index_ptr =
1766 &svp->last->datum->aux[svp->objects_last_page - 1];
1767 ty = add_aux_sym_tir (&last_func_type_info,
1768 hash_no,
1769 &cur_file_ptr->thash_head[0]);
1770
1771/* This seems to be unnecessary. I'm not even sure what it is
1772 * intended to do. It's from mips-tfile.
1773 * if (last_func_sym_value != (symbolS *) NULL)
1774 * {
1775 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1776 * last_func_sym_value->index = ty;
1777 * }
1778 */
1779 }
1780
1781 free_scope (pscope);
1782 }
1783 }
1784
1785 cur_file_ptr->nested_scopes += scope_delta;
1786
1787#ifdef ECOFF_DEBUG
1788 if (debug && type != st_File
1789 && (debug > 2 || type == st_Block || type == st_End
1790 || type == st_Proc || type == st_StaticProc))
1791 {
1792 char *sc_str = sc_to_string (storage);
1793 char *st_str = st_to_string (type);
1794 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1795
1796 fprintf (stderr,
1797 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1798 value, depth, sc_str);
1799
1800 if (str_start && str_end_p1 - str_start > 0)
1801 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1802 else
1803 {
1804 unsigned long len = strlen (st_str);
1805 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1806 }
1807 }
1808#endif
1809
1810 return psym;
1811}
1812\f
1813/* Add an auxiliary symbol (passing a symint). This is actually used
1814 for integral aux types, not just symints. */
1815
1816static symint_t
1817add_aux_sym_symint (aux_word)
1818 symint_t aux_word; /* auxiliary information word */
1819{
1820 register varray_t *vp;
1821 register aux_t *aux_ptr;
1822
1823 if (cur_file_ptr == (efdr_t *) NULL)
1824 as_fatal (_("no current file pointer"));
1825
1826 vp = &cur_file_ptr->aux_syms;
1827
1828 if (vp->objects_last_page == vp->objects_per_page)
1829 add_varray_page (vp);
1830
1831 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1832 aux_ptr->type = aux_isym;
1833 aux_ptr->data.isym = aux_word;
1834
1835 return vp->num_allocated++;
1836}
1837
1838
1839/* Add an auxiliary symbol (passing a file/symbol index combo). */
1840
1841static symint_t
1842add_aux_sym_rndx (file_index, sym_index)
1843 int file_index;
1844 symint_t sym_index;
1845{
1846 register varray_t *vp;
1847 register aux_t *aux_ptr;
1848
1849 if (cur_file_ptr == (efdr_t *) NULL)
1850 as_fatal (_("no current file pointer"));
1851
1852 vp = &cur_file_ptr->aux_syms;
1853
1854 if (vp->objects_last_page == vp->objects_per_page)
1855 add_varray_page (vp);
1856
1857 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1858 aux_ptr->type = aux_rndx;
1859 aux_ptr->data.rndx.rfd = file_index;
1860 aux_ptr->data.rndx.index = sym_index;
1861
1862 return vp->num_allocated++;
1863}
1864\f
1865/* Add an auxiliary symbol (passing the basic type and possibly
1866 type qualifiers). */
1867
1868static symint_t
1869add_aux_sym_tir (t, state, hash_tbl)
1870 type_info_t *t; /* current type information */
1871 hash_state_t state; /* whether to hash type or not */
1872 thash_t **hash_tbl; /* pointer to hash table to use */
1873{
1874 register varray_t *vp;
1875 register aux_t *aux_ptr;
1876 static AUXU init_aux;
1877 symint_t ret;
1878 int i;
1879 AUXU aux;
1880
1881 if (cur_file_ptr == (efdr_t *) NULL)
1882 as_fatal (_("no current file pointer"));
1883
1884 vp = &cur_file_ptr->aux_syms;
1885
1886 aux = init_aux;
1887 aux.ti.bt = (int) t->basic_type;
1888 aux.ti.continued = 0;
1889 aux.ti.fBitfield = t->bitfield;
1890
1891 aux.ti.tq0 = (int) t->type_qualifiers[0];
1892 aux.ti.tq1 = (int) t->type_qualifiers[1];
1893 aux.ti.tq2 = (int) t->type_qualifiers[2];
1894 aux.ti.tq3 = (int) t->type_qualifiers[3];
1895 aux.ti.tq4 = (int) t->type_qualifiers[4];
1896 aux.ti.tq5 = (int) t->type_qualifiers[5];
1897
1898
1899 /* For anything that adds additional information, we must not hash,
1900 so check here, and reset our state. */
1901
1902 if (state != hash_no
1903 && (t->type_qualifiers[0] == tq_Array
1904 || t->type_qualifiers[1] == tq_Array
1905 || t->type_qualifiers[2] == tq_Array
1906 || t->type_qualifiers[3] == tq_Array
1907 || t->type_qualifiers[4] == tq_Array
1908 || t->type_qualifiers[5] == tq_Array
1909 || t->basic_type == bt_Struct
1910 || t->basic_type == bt_Union
1911 || t->basic_type == bt_Enum
1912 || t->bitfield
1913 || t->num_dims > 0))
1914 state = hash_no;
1915
1916 /* See if we can hash this type, and save some space, but some types
1917 can't be hashed (because they contain arrays or continuations),
1918 and others can be put into the hash list, but cannot use existing
1919 types because other aux entries precede this one. */
1920
1921 if (state != hash_no)
1922 {
1923 register thash_t *hash_ptr;
1924 register symint_t hi;
1925
1926 hi = aux.isym & ((1 << HASHBITS) - 1);
1927 hi %= THASH_SIZE;
1928
1929 for (hash_ptr = hash_tbl[hi];
1930 hash_ptr != (thash_t *)0;
1931 hash_ptr = hash_ptr->next)
1932 {
1933 if (aux.isym == hash_ptr->type.isym)
1934 break;
1935 }
1936
1937 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1938 return hash_ptr->indx;
1939
1940 if (hash_ptr == (thash_t *) NULL)
1941 {
1942 hash_ptr = allocate_thash ();
1943 hash_ptr->next = hash_tbl[hi];
1944 hash_ptr->type = aux;
1945 hash_ptr->indx = vp->num_allocated;
1946 hash_tbl[hi] = hash_ptr;
1947 }
1948 }
1949
1950 /* Everything is set up, add the aux symbol. */
1951 if (vp->objects_last_page == vp->objects_per_page)
1952 add_varray_page (vp);
1953
1954 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1955 aux_ptr->type = aux_tir;
1956 aux_ptr->data = aux;
1957
1958 ret = vp->num_allocated++;
1959
1960 /* Add bitfield length if it exists.
1961
1962 NOTE: Mips documentation claims bitfield goes at the end of the
1963 AUX record, but the DECstation compiler emits it here.
1964 (This would only make a difference for enum bitfields.)
1965
1966 Also note: We use the last size given since gcc may emit 2
1967 for an enum bitfield. */
1968
1969 if (t->bitfield)
1970 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1971
1972
1973 /* Add tag information if needed. Structure, union, and enum
1974 references add 2 aux symbols: a [file index, symbol index]
1975 pointer to the structure type, and the current file index. */
1976
1977 if (t->basic_type == bt_Struct
1978 || t->basic_type == bt_Union
1979 || t->basic_type == bt_Enum)
1980 {
1981 register symint_t file_index = t->tag_ptr->ifd;
1982 register localsym_t *sym = t->tag_ptr->sym;
1983 register forward_t *forward_ref = allocate_forward ();
1984
1985 if (sym != (localsym_t *) NULL)
1986 {
1987 forward_ref->next = sym->forward_ref;
1988 sym->forward_ref = forward_ref;
1989 }
1990 else
1991 {
1992 forward_ref->next = t->tag_ptr->forward_ref;
1993 t->tag_ptr->forward_ref = forward_ref;
1994 }
1995
1996 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1997 forward_ref->index_ptr
1998 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1999
2000 (void) add_aux_sym_symint (file_index);
2001 forward_ref->ifd_ptr
2002 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2003 }
2004
2005 /* Add information about array bounds if they exist. */
2006 for (i = 0; i < t->num_dims; i++)
2007 {
2008 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2009 cur_file_ptr->int_type);
2010
2011 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2012 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2013 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2014 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2015 ? 0
2016 : (t->sizes[i] * 8) / t->dimensions[i]);
2017 };
2018
2019 /* NOTE: Mips documentation claims that the bitfield width goes here.
2020 But it needs to be emitted earlier. */
2021
2022 return ret;
2023}
2024\f
2025/* Add a tag to the tag table (unless it already exists). */
2026
2027static tag_t *
2028get_tag (tag, sym, basic_type)
2029 const char *tag; /* tag name */
2030 localsym_t *sym; /* tag start block */
2031 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2032{
2033 shash_t *hash_ptr;
2034 const char *err;
2035 tag_t *tag_ptr;
2036
2037 if (cur_file_ptr == (efdr_t *) NULL)
2038 as_fatal (_("no current file pointer"));
2039
2040 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2041
2042 if (hash_ptr != (shash_t *) NULL
2043 && hash_ptr->tag_ptr != (tag_t *) NULL)
2044 {
2045 tag_ptr = hash_ptr->tag_ptr;
2046 if (sym != (localsym_t *) NULL)
2047 {
2048 tag_ptr->basic_type = basic_type;
2049 tag_ptr->ifd = cur_file_ptr->file_index;
2050 tag_ptr->sym = sym;
2051 }
2052 return tag_ptr;
2053 }
2054
2055 if (hash_ptr == (shash_t *) NULL)
2056 {
2057 char *perm;
2058
2059 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2060 strcpy (perm, tag);
2061 hash_ptr = allocate_shash ();
2062 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2063 if (err)
2064 as_fatal (_("Inserting \"%s\" into tag hash table: %s"),
2065 tag, err);
2066 hash_ptr->string = perm;
2067 }
2068
2069 tag_ptr = allocate_tag ();
2070 tag_ptr->forward_ref = (forward_t *) NULL;
2071 tag_ptr->hash_ptr = hash_ptr;
2072 tag_ptr->same_name = hash_ptr->tag_ptr;
2073 tag_ptr->basic_type = basic_type;
2074 tag_ptr->sym = sym;
2075 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2076 ? (symint_t) -1
2077 : cur_file_ptr->file_index);
2078 tag_ptr->same_block = cur_tag_head->first_tag;
2079
2080 cur_tag_head->first_tag = tag_ptr;
2081 hash_ptr->tag_ptr = tag_ptr;
2082
2083 return tag_ptr;
2084}
2085\f
2086/* Add an unknown {struct, union, enum} tag. */
2087
2088static void
2089add_unknown_tag (ptag)
2090 tag_t *ptag; /* pointer to tag information */
2091{
2092 shash_t *hash_ptr = ptag->hash_ptr;
2093 char *name = hash_ptr->string;
2094 localsym_t *sym;
2095 forward_t **pf;
2096
2097#ifdef ECOFF_DEBUG
2098 if (debug > 1)
2099 {
2100 char *agg_type = "{unknown aggregate type}";
2101 switch (ptag->basic_type)
2102 {
2103 case bt_Struct: agg_type = "struct"; break;
2104 case bt_Union: agg_type = "union"; break;
2105 case bt_Enum: agg_type = "enum"; break;
2106 default: break;
2107 }
2108
2109 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2110 hash_ptr->len, name_start);
2111 }
2112#endif
2113
2114 sym = add_ecoff_symbol (name,
2115 st_Block,
2116 sc_Info,
2117 (symbolS *) NULL,
2118 (bfd_vma) 0,
2119 (symint_t) 0,
2120 (symint_t) 0);
2121
2122 (void) add_ecoff_symbol (name,
2123 st_End,
2124 sc_Info,
2125 (symbolS *) NULL,
2126 (bfd_vma) 0,
2127 (symint_t) 0,
2128 (symint_t) 0);
2129
2130 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2131 ;
2132 *pf = ptag->forward_ref;
2133}
2134\f
2135/* Add a procedure to the current file's list of procedures, and record
2136 this is the current procedure. */
2137
2138static void
2139add_procedure (func)
2140 char *func; /* func name */
2141{
2142 register varray_t *vp;
2143 register proc_t *new_proc_ptr;
2144 symbolS *sym;
2145
2146#ifdef ECOFF_DEBUG
2147 if (debug)
2148 fputc ('\n', stderr);
2149#endif
2150
2151 if (cur_file_ptr == (efdr_t *) NULL)
2152 as_fatal (_("no current file pointer"));
2153
2154 vp = &cur_file_ptr->procs;
2155
2156 if (vp->objects_last_page == vp->objects_per_page)
2157 add_varray_page (vp);
2158
2159 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2160
2161 if (first_proc_ptr == (proc_t *) NULL)
2162 first_proc_ptr = new_proc_ptr;
2163
2164 vp->num_allocated++;
2165
2166 new_proc_ptr->pdr.isym = -1;
2167 new_proc_ptr->pdr.iline = -1;
2168 new_proc_ptr->pdr.lnLow = -1;
2169 new_proc_ptr->pdr.lnHigh = -1;
2170
2171 /* Set the BSF_FUNCTION flag for the symbol. */
2172 sym = symbol_find_or_make (func);
2173 sym->bsym->flags |= BSF_FUNCTION;
2174
2175 /* Push the start of the function. */
2176 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2177 sym, (bfd_vma) 0, (symint_t) 0,
2178 (symint_t) 0);
2179
2180 ++proc_cnt;
2181
2182 /* Fill in the linenos preceding the .ent, if any. */
2183 if (noproc_lineno != (lineno_list_t *) NULL)
2184 {
2185 lineno_list_t *l;
2186
2187 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2188 l->proc = new_proc_ptr;
2189 *last_lineno_ptr = noproc_lineno;
2190 while (*last_lineno_ptr != NULL)
2191 {
2192 last_lineno = *last_lineno_ptr;
2193 last_lineno_ptr = &last_lineno->next;
2194 }
2195 noproc_lineno = (lineno_list_t *) NULL;
2196 }
2197}
2198
2199symbolS *
2200ecoff_get_cur_proc_sym ()
2201{
2202 return (cur_proc_ptr ? cur_proc_ptr->sym->as_sym : NULL);
2203}
2204\f
2205/* Add a new filename, and set up all of the file relative
2206 virtual arrays (strings, symbols, aux syms, etc.). Record
2207 where the current file structure lives. */
2208
2209static void
2210add_file (file_name, indx, fake)
2211 const char *file_name; /* file name */
2212 int indx;
2213 int fake;
2214{
2215 register int first_ch;
2216 register efdr_t *fil_ptr;
2217
2218#ifdef ECOFF_DEBUG
2219 if (debug)
2220 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2221#endif
2222
2223 /* If the file name is NULL, then no .file symbol appeared, and we
2224 want to use the actual file name. */
2225 if (file_name == (const char *) NULL)
2226 {
2227 char *file;
2228
2229 if (first_file != (efdr_t *) NULL)
2230 as_fatal (_("fake .file after real one"));
2231 as_where (&file, (unsigned int *) NULL);
2232 file_name = (const char *) file;
2233
2234 /* Automatically generate ECOFF debugging information, since I
2235 think that's what other ECOFF assemblers do. We don't do
2236 this if we see a .file directive with a string, since that
2237 implies that some sort of debugging information is being
2238 provided. */
2239 if (! symbol_table_frozen && debug_type == DEBUG_NONE)
2240 debug_type = DEBUG_ECOFF;
2241 }
2242
2243#ifndef NO_LISTING
2244 if (listing)
2245 listing_source_file (file_name);
2246#endif
2247
2248 current_stabs_filename = file_name;
2249
2250 /* If we're creating stabs, then we don't actually make a new FDR.
2251 Instead, we just create a stabs symbol. */
2252 if (stabs_seen)
2253 {
2254 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2255 symbol_new ("L0\001", now_seg,
2256 (valueT) frag_now_fix (),
2257 frag_now),
2258 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
2259 return;
2260 }
2261
2262 first_ch = *file_name;
2263
2264 /* FIXME: We can't safely merge files which have line number
2265 information (fMerge will be zero in this case). Otherwise, we
2266 get incorrect line number debugging info. See for instance
2267 ecoff_build_lineno, which will end up setting all file->fdr.*
2268 fields multiple times, resulting in incorrect debug info. In
2269 order to make this work right, all line number and symbol info
2270 for the same source file has to be adjacent in the object file,
2271 so that a single file descriptor can be used to point to them.
2272 This would require maintaining file specific lists of line
2273 numbers and symbols for each file, so that they can be merged
2274 together (or output together) when two .file pseudo-ops are
2275 merged into one file descriptor. */
2276
2277 /* See if the file has already been created. */
2278 for (fil_ptr = first_file;
2279 fil_ptr != (efdr_t *) NULL;
2280 fil_ptr = fil_ptr->next_file)
2281 {
2282 if (first_ch == fil_ptr->name[0]
2283 && strcmp (file_name, fil_ptr->name) == 0
2284 && fil_ptr->fdr.fMerge)
2285 {
2286 cur_file_ptr = fil_ptr;
2287 if (! fake)
2288 cur_file_ptr->fake = 0;
2289 break;
2290 }
2291 }
2292
2293 /* If this is a new file, create it. */
2294 if (fil_ptr == (efdr_t *) NULL)
2295 {
2296 if (file_desc.objects_last_page == file_desc.objects_per_page)
2297 add_varray_page (&file_desc);
2298
2299 fil_ptr = cur_file_ptr =
2300 &file_desc.last->datum->file[file_desc.objects_last_page++];
2301 *fil_ptr = init_file;
2302
2303 fil_ptr->file_index = current_file_idx++;
2304 ++file_desc.num_allocated;
2305
2306 fil_ptr->fake = fake;
2307
2308 /* Allocate the string hash table. */
2309 fil_ptr->str_hash = hash_new ();
2310
2311 /* Make sure 0 byte in string table is null */
2312 add_string (&fil_ptr->strings,
2313 fil_ptr->str_hash,
2314 "",
2315 (shash_t **)0);
2316
2317 if (strlen (file_name) > PAGE_USIZE - 2)
2318 as_fatal (_("Filename goes over one page boundary."));
2319
2320 /* Push the start of the filename. We assume that the filename
2321 will be stored at string offset 1. */
2322 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2323 (symbolS *) NULL, (bfd_vma) 0,
2324 (symint_t) 0, (symint_t) 0);
2325 fil_ptr->fdr.rss = 1;
2326 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2327
2328 /* Update the linked list of file descriptors. */
2329 *last_file_ptr = fil_ptr;
2330 last_file_ptr = &fil_ptr->next_file;
2331
2332 /* Add void & int types to the file (void should be first to catch
2333 errant 0's within the index fields). */
2334 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2335 hash_yes,
2336 &cur_file_ptr->thash_head[0]);
2337
2338 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2339 hash_yes,
2340 &cur_file_ptr->thash_head[0]);
2341 }
2342}
2343
2344/* This function is called when the assembler notices a preprocessor
2345 directive switching to a new file. This will not happen in
2346 compiler output, only in hand coded assembler. */
2347
2348void
2349ecoff_new_file (name)
2350 const char *name;
2351{
2352 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2353 return;
2354 add_file (name, 0, 0);
2355
2356 /* This is a hand coded assembler file, so automatically turn on
2357 debugging information. */
2358 if (debug_type == DEBUG_NONE)
2359 debug_type = DEBUG_ECOFF;
2360}
2361\f
2362#ifdef ECOFF_DEBUG
2363
2364/* Convert storage class to string. */
2365
2366static char *
2367sc_to_string(storage_class)
2368 sc_t storage_class;
2369{
2370 switch(storage_class)
2371 {
2372 case sc_Nil: return "Nil,";
2373 case sc_Text: return "Text,";
2374 case sc_Data: return "Data,";
2375 case sc_Bss: return "Bss,";
2376 case sc_Register: return "Register,";
2377 case sc_Abs: return "Abs,";
2378 case sc_Undefined: return "Undefined,";
2379 case sc_CdbLocal: return "CdbLocal,";
2380 case sc_Bits: return "Bits,";
2381 case sc_CdbSystem: return "CdbSystem,";
2382 case sc_RegImage: return "RegImage,";
2383 case sc_Info: return "Info,";
2384 case sc_UserStruct: return "UserStruct,";
2385 case sc_SData: return "SData,";
2386 case sc_SBss: return "SBss,";
2387 case sc_RData: return "RData,";
2388 case sc_Var: return "Var,";
2389 case sc_Common: return "Common,";
2390 case sc_SCommon: return "SCommon,";
2391 case sc_VarRegister: return "VarRegister,";
2392 case sc_Variant: return "Variant,";
2393 case sc_SUndefined: return "SUndefined,";
2394 case sc_Init: return "Init,";
2395 case sc_Max: return "Max,";
2396 }
2397
2398 return "???,";
2399}
2400
2401#endif /* DEBUG */
2402\f
2403#ifdef ECOFF_DEBUG
2404
2405/* Convert symbol type to string. */
2406
2407static char *
2408st_to_string(symbol_type)
2409 st_t symbol_type;
2410{
2411 switch(symbol_type)
2412 {
2413 case st_Nil: return "Nil,";
2414 case st_Global: return "Global,";
2415 case st_Static: return "Static,";
2416 case st_Param: return "Param,";
2417 case st_Local: return "Local,";
2418 case st_Label: return "Label,";
2419 case st_Proc: return "Proc,";
2420 case st_Block: return "Block,";
2421 case st_End: return "End,";
2422 case st_Member: return "Member,";
2423 case st_Typedef: return "Typedef,";
2424 case st_File: return "File,";
2425 case st_RegReloc: return "RegReloc,";
2426 case st_Forward: return "Forward,";
2427 case st_StaticProc: return "StaticProc,";
2428 case st_Constant: return "Constant,";
2429 case st_Str: return "String,";
2430 case st_Number: return "Number,";
2431 case st_Expr: return "Expr,";
2432 case st_Type: return "Type,";
2433 case st_Max: return "Max,";
2434 }
2435
2436 return "???,";
2437}
2438
2439#endif /* DEBUG */
2440\f
2441/* Parse .begin directives which have a label as the first argument
2442 which gives the location of the start of the block. */
2443
2444void
2445ecoff_directive_begin (ignore)
2446 int ignore;
2447{
2448 char *name;
2449 char name_end;
2450
2451 if (cur_file_ptr == (efdr_t *) NULL)
2452 {
2453 as_warn (_(".begin directive without a preceding .file directive"));
2454 demand_empty_rest_of_line ();
2455 return;
2456 }
2457
2458 if (cur_proc_ptr == (proc_t *) NULL)
2459 {
2460 as_warn (_(".begin directive without a preceding .ent directive"));
2461 demand_empty_rest_of_line ();
2462 return;
2463 }
2464
2465 name = input_line_pointer;
2466 name_end = get_symbol_end ();
2467
2468 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2469 symbol_find_or_make (name),
2470 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2471
2472 *input_line_pointer = name_end;
2473
2474 /* The line number follows, but we don't use it. */
2475 (void) get_absolute_expression ();
2476 demand_empty_rest_of_line ();
2477}
2478\f
2479/* Parse .bend directives which have a label as the first argument
2480 which gives the location of the end of the block. */
2481
2482void
2483ecoff_directive_bend (ignore)
2484 int ignore;
2485{
2486 char *name;
2487 char name_end;
2488 symbolS *endsym;
2489
2490 if (cur_file_ptr == (efdr_t *) NULL)
2491 {
2492 as_warn (_(".bend directive without a preceding .file directive"));
2493 demand_empty_rest_of_line ();
2494 return;
2495 }
2496
2497 if (cur_proc_ptr == (proc_t *) NULL)
2498 {
2499 as_warn (_(".bend directive without a preceding .ent directive"));
2500 demand_empty_rest_of_line ();
2501 return;
2502 }
2503
2504 name = input_line_pointer;
2505 name_end = get_symbol_end ();
2506
2507 /* The value is the distance between the .bend directive and the
2508 corresponding symbol. We fill in the offset when we write out
2509 the symbol. */
2510 endsym = symbol_find (name);
2511 if (endsym == (symbolS *) NULL)
2512 as_warn (_(".bend directive names unknown symbol"));
2513 else
2514 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2515 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
2516
2517 *input_line_pointer = name_end;
2518
2519 /* The line number follows, but we don't use it. */
2520 (void) get_absolute_expression ();
2521 demand_empty_rest_of_line ();
2522}
2523\f
2524/* COFF debugging information is provided as a series of directives
2525 (.def, .scl, etc.). We build up information as we read the
2526 directives in the following static variables, and file it away when
2527 we reach the .endef directive. */
2528static char *coff_sym_name;
2529static type_info_t coff_type;
2530static sc_t coff_storage_class;
2531static st_t coff_symbol_typ;
2532static int coff_is_function;
2533static char *coff_tag;
2534static valueT coff_value;
2535static symbolS *coff_sym_value;
2536static bfd_vma coff_sym_addend;
2537static int coff_inside_enumeration;
2538
2539/* Handle a .def directive: start defining a symbol. */
2540
2541void
2542ecoff_directive_def (ignore)
2543 int ignore;
2544{
2545 char *name;
2546 char name_end;
2547
2548 ecoff_debugging_seen = 1;
2549
2550 SKIP_WHITESPACE ();
2551
2552 name = input_line_pointer;
2553 name_end = get_symbol_end ();
2554
2555 if (coff_sym_name != (char *) NULL)
2556 as_warn (_(".def pseudo-op used inside of .def/.endef; ignored"));
2557 else if (*name == '\0')
2558 as_warn (_("Empty symbol name in .def; ignored"));
2559 else
2560 {
2561 if (coff_sym_name != (char *) NULL)
2562 free (coff_sym_name);
2563 if (coff_tag != (char *) NULL)
2564 free (coff_tag);
2565 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2566 strcpy (coff_sym_name, name);
2567 coff_type = type_info_init;
2568 coff_storage_class = sc_Nil;
2569 coff_symbol_typ = st_Nil;
2570 coff_is_function = 0;
2571 coff_tag = (char *) NULL;
2572 coff_value = 0;
2573 coff_sym_value = (symbolS *) NULL;
2574 coff_sym_addend = 0;
2575 }
2576
2577 *input_line_pointer = name_end;
2578
2579 demand_empty_rest_of_line ();
2580}
2581
2582/* Handle a .dim directive, used to give dimensions for an array. The
2583 arguments are comma separated numbers. mips-tfile assumes that
2584 there will not be more than 6 dimensions, and gdb won't read any
2585 more than that anyhow, so I will also make that assumption. */
2586
2587void
2588ecoff_directive_dim (ignore)
2589 int ignore;
2590{
2591 int dimens[N_TQ];
2592 int i;
2593
2594 if (coff_sym_name == (char *) NULL)
2595 {
2596 as_warn (_(".dim pseudo-op used outside of .def/.endef; ignored"));
2597 demand_empty_rest_of_line ();
2598 return;
2599 }
2600
2601 for (i = 0; i < N_TQ; i++)
2602 {
2603 SKIP_WHITESPACE ();
2604 dimens[i] = get_absolute_expression ();
2605 if (*input_line_pointer == ',')
2606 ++input_line_pointer;
2607 else
2608 {
2609 if (*input_line_pointer != '\n'
2610 && *input_line_pointer != ';')
2611 as_warn (_("Badly formed .dim directive"));
2612 break;
2613 }
2614 }
2615
2616 if (i == N_TQ)
2617 --i;
2618
2619 /* The dimensions are stored away in reverse order. */
2620 for (; i >= 0; i--)
2621 {
2622 if (coff_type.num_dims >= N_TQ)
2623 {
2624 as_warn (_("Too many .dim entries"));
2625 break;
2626 }
2627 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2628 ++coff_type.num_dims;
2629 }
2630
2631 demand_empty_rest_of_line ();
2632}
2633
2634/* Handle a .scl directive, which sets the COFF storage class of the
2635 symbol. */
2636
2637void
2638ecoff_directive_scl (ignore)
2639 int ignore;
2640{
2641 long val;
2642
2643 if (coff_sym_name == (char *) NULL)
2644 {
2645 as_warn (_(".scl pseudo-op used outside of .def/.endef; ignored"));
2646 demand_empty_rest_of_line ();
2647 return;
2648 }
2649
2650 val = get_absolute_expression ();
2651
2652 coff_symbol_typ = map_coff_sym_type[val];
2653 coff_storage_class = map_coff_storage[val];
2654
2655 demand_empty_rest_of_line ();
2656}
2657
2658/* Handle a .size directive. For some reason mips-tfile.c thinks that
2659 .size can have multiple arguments. We humor it, although gcc will
2660 never generate more than one argument. */
2661
2662void
2663ecoff_directive_size (ignore)
2664 int ignore;
2665{
2666 int sizes[N_TQ];
2667 int i;
2668
2669 if (coff_sym_name == (char *) NULL)
2670 {
2671 as_warn (_(".size pseudo-op used outside of .def/.endef; ignored"));
2672 demand_empty_rest_of_line ();
2673 return;
2674 }
2675
2676 for (i = 0; i < N_TQ; i++)
2677 {
2678 SKIP_WHITESPACE ();
2679 sizes[i] = get_absolute_expression ();
2680 if (*input_line_pointer == ',')
2681 ++input_line_pointer;
2682 else
2683 {
2684 if (*input_line_pointer != '\n'
2685 && *input_line_pointer != ';')
2686 as_warn (_("Badly formed .size directive"));
2687 break;
2688 }
2689 }
2690
2691 if (i == N_TQ)
2692 --i;
2693
2694 /* The sizes are stored away in reverse order. */
2695 for (; i >= 0; i--)
2696 {
2697 if (coff_type.num_sizes >= N_TQ)
2698 {
2699 as_warn (_("Too many .size entries"));
2700 break;
2701 }
2702 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2703 ++coff_type.num_sizes;
2704 }
2705
2706 demand_empty_rest_of_line ();
2707}
2708
2709/* Handle the .type directive, which gives the COFF type of the
2710 symbol. */
2711
2712void
2713ecoff_directive_type (ignore)
2714 int ignore;
2715{
2716 long val;
2717 tq_t *tq_ptr;
2718 tq_t *tq_shft;
2719
2720 if (coff_sym_name == (char *) NULL)
2721 {
2722 as_warn (_(".type pseudo-op used outside of .def/.endef; ignored"));
2723 demand_empty_rest_of_line ();
2724 return;
2725 }
2726
2727 val = get_absolute_expression ();
2728
2729 coff_type.orig_type = BTYPE (val);
2730 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2731
2732 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2733 while (val &~ N_BTMASK)
2734 {
2735 if (tq_ptr == &coff_type.type_qualifiers[0])
2736 {
2737 /* FIXME: We could handle this by setting the continued bit.
2738 There would still be a limit: the .type argument can not
2739 be infinite. */
2740 as_warn (_("The type of %s is too complex; it will be simplified"),
2741 coff_sym_name);
2742 break;
2743 }
2744 if (ISPTR (val))
2745 *--tq_ptr = tq_Ptr;
2746 else if (ISFCN (val))
2747 *--tq_ptr = tq_Proc;
2748 else if (ISARY (val))
2749 *--tq_ptr = tq_Array;
2750 else
2751 as_fatal (_("Unrecognized .type argument"));
2752
2753 val = DECREF (val);
2754 }
2755
2756 tq_shft = &coff_type.type_qualifiers[0];
2757 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2758 *tq_shft++ = *tq_ptr++;
2759
2760 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2761 {
2762 /* If this is a function, ignore it, so that we don't get two
2763 entries (one from the .ent, and one for the .def that
2764 precedes it). Save the type information so that the end
2765 block can properly add it after the begin block index. For
2766 MIPS knows what reason, we must strip off the function type
2767 at this point. */
2768 coff_is_function = 1;
2769 tq_shft[-1] = tq_Nil;
2770 }
2771
2772 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2773 *tq_shft++ = tq_Nil;
2774
2775 demand_empty_rest_of_line ();
2776}
2777
2778/* Handle the .tag directive, which gives the name of a structure,
2779 union or enum. */
2780
2781void
2782ecoff_directive_tag (ignore)
2783 int ignore;
2784{
2785 char *name;
2786 char name_end;
2787
2788 if (coff_sym_name == (char *) NULL)
2789 {
2790 as_warn (_(".tag pseudo-op used outside of .def/.endef; ignored"));
2791 demand_empty_rest_of_line ();
2792 return;
2793 }
2794
2795 name = input_line_pointer;
2796 name_end = get_symbol_end ();
2797
2798 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2799 strcpy (coff_tag, name);
2800
2801 *input_line_pointer = name_end;
2802
2803 demand_empty_rest_of_line ();
2804}
2805
2806/* Handle the .val directive, which gives the value of the symbol. It
2807 may be the name of a static or global symbol. */
2808
2809void
2810ecoff_directive_val (ignore)
2811 int ignore;
2812{
2813 expressionS exp;
2814
2815 if (coff_sym_name == (char *) NULL)
2816 {
2817 as_warn (_(".val pseudo-op used outside of .def/.endef; ignored"));
2818 demand_empty_rest_of_line ();
2819 return;
2820 }
2821
2822 expression (&exp);
2823 if (exp.X_op != O_constant && exp.X_op != O_symbol)
2824 {
2825 as_bad (_(".val expression is too copmlex"));
2826 demand_empty_rest_of_line ();
2827 return;
2828 }
2829
2830 if (exp.X_op == O_constant)
2831 coff_value = exp.X_add_number;
2832 else
2833 {
2834 coff_sym_value = exp.X_add_symbol;
2835 coff_sym_addend = exp.X_add_number;
2836 }
2837
2838 demand_empty_rest_of_line ();
2839}
2840
2841/* Handle the .endef directive, which terminates processing of COFF
2842 debugging information for a symbol. */
2843
2844void
2845ecoff_directive_endef (ignore)
2846 int ignore;
2847{
2848 char *name;
2849 symint_t indx;
2850 localsym_t *sym;
2851
2852 demand_empty_rest_of_line ();
2853
2854 if (coff_sym_name == (char *) NULL)
2855 {
2856 as_warn (_(".endef pseudo-op used before .def; ignored"));
2857 return;
2858 }
2859
2860 name = coff_sym_name;
2861 coff_sym_name = (char *) NULL;
2862
2863 /* If the symbol is a static or external, we have already gotten the
2864 appropriate type and class, so make sure we don't override those
2865 values. This is needed because there are some type and classes
2866 that are not in COFF, such as short data, etc. */
2867 if (coff_sym_value != (symbolS *) NULL)
2868 {
2869 coff_symbol_typ = st_Nil;
2870 coff_storage_class = sc_Nil;
2871 }
2872
2873 coff_type.extra_sizes = coff_tag != (char *) NULL;
2874 if (coff_type.num_dims > 0)
2875 {
2876 int diff = coff_type.num_dims - coff_type.num_sizes;
2877 int i = coff_type.num_dims - 1;
2878 int j;
2879
2880 if (coff_type.num_sizes != 1 || diff < 0)
2881 {
2882 as_warn (_("Bad COFF debugging info"));
2883 return;
2884 }
2885
2886 /* If this is an array, make sure the same number of dimensions
2887 and sizes were passed, creating extra sizes for multiply
2888 dimensioned arrays if not passed. */
2889 coff_type.extra_sizes = 0;
2890 if (diff)
2891 {
2892 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2893 while (j >= 0)
2894 {
2895 coff_type.sizes[j] = (((j - diff) >= 0)
2896 ? coff_type.sizes[j - diff]
2897 : 0);
2898 j--;
2899 }
2900
2901 coff_type.num_sizes = i + 1;
2902 for (i--; i >= 0; i--)
2903 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2904 ? 0
2905 : (coff_type.sizes[i + 1]
2906 / coff_type.dimensions[i + 1]));
2907 }
2908 }
2909 else if (coff_symbol_typ == st_Member
2910 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2911 {
2912 /* Is this a bitfield? This is indicated by a structure memeber
2913 having a size field that isn't an array. */
2914 coff_type.bitfield = 1;
2915 }
2916
2917 /* Except for enumeration members & begin/ending of scopes, put the
2918 type word in the aux. symbol table. */
2919 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2920 indx = 0;
2921 else if (coff_inside_enumeration)
2922 indx = cur_file_ptr->void_type;
2923 else
2924 {
2925 if (coff_type.basic_type == bt_Struct
2926 || coff_type.basic_type == bt_Union
2927 || coff_type.basic_type == bt_Enum)
2928 {
2929 if (coff_tag == (char *) NULL)
2930 {
2931 as_warn (_("No tag specified for %s"), name);
2932 return;
2933 }
2934
2935 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2936 coff_type.basic_type);
2937 }
2938
2939 if (coff_is_function)
2940 {
2941 last_func_type_info = coff_type;
2942 last_func_sym_value = coff_sym_value;
2943 return;
2944 }
2945
2946 indx = add_aux_sym_tir (&coff_type,
2947 hash_yes,
2948 &cur_file_ptr->thash_head[0]);
2949 }
2950
2951 /* Do any last minute adjustments that are necessary. */
2952 switch (coff_symbol_typ)
2953 {
2954 default:
2955 break;
2956
2957 /* For the beginning of structs, unions, and enumerations, the
2958 size info needs to be passed in the value field. */
2959 case st_Block:
2960 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2961 != 1)
2962 {
2963 as_warn (_("Bad COFF debugging information"));
2964 return;
2965 }
2966 else
2967 coff_value = coff_type.sizes[0];
2968
2969 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2970 break;
2971
2972 /* For the end of structs, unions, and enumerations, omit the
2973 name which is always ".eos". This needs to be done last, so
2974 that any error reporting above gives the correct name. */
2975 case st_End:
2976 free (name);
2977 name = (char *) NULL;
2978 coff_value = 0;
2979 coff_inside_enumeration = 0;
2980 break;
2981
2982 /* Members of structures and unions that aren't bitfields, need
2983 to adjust the value from a byte offset to a bit offset.
2984 Members of enumerations do not have the value adjusted, and
2985 can be distinguished by indx == indexNil. For enumerations,
2986 update the maximum enumeration value. */
2987 case st_Member:
2988 if (! coff_type.bitfield && ! coff_inside_enumeration)
2989 coff_value *= 8;
2990
2991 break;
2992 }
2993
2994 /* Add the symbol. */
2995 sym = add_ecoff_symbol (name,
2996 coff_symbol_typ,
2997 coff_storage_class,
2998 coff_sym_value,
2999 coff_sym_addend,
3000 (symint_t) coff_value,
3001 indx);
3002
3003 /* deal with struct, union, and enum tags. */
3004 if (coff_symbol_typ == st_Block)
3005 {
3006 /* Create or update the tag information. */
3007 tag_t *tag_ptr = get_tag (name,
3008 sym,
3009 coff_type.basic_type);
3010 forward_t **pf;
3011
3012 /* Remember any forward references. */
3013 for (pf = &sym->forward_ref;
3014 *pf != (forward_t *) NULL;
3015 pf = &(*pf)->next)
3016 ;
3017 *pf = tag_ptr->forward_ref;
3018 tag_ptr->forward_ref = (forward_t *) NULL;
3019 }
3020}
3021\f
3022/* Parse .end directives. */
3023
3024void
3025ecoff_directive_end (ignore)
3026 int ignore;
3027{
3028 char *name;
3029 char name_end;
3030 register int ch;
3031 symbolS *ent;
3032
3033 if (cur_file_ptr == (efdr_t *) NULL)
3034 {
3035 as_warn (_(".end directive without a preceding .file directive"));
3036 demand_empty_rest_of_line ();
3037 return;
3038 }
3039
3040 if (cur_proc_ptr == (proc_t *) NULL)
3041 {
3042 as_warn (_(".end directive without a preceding .ent directive"));
3043 demand_empty_rest_of_line ();
3044 return;
3045 }
3046
3047 name = input_line_pointer;
3048 name_end = get_symbol_end ();
3049
3050 ch = *name;
3051 if (! is_name_beginner (ch))
3052 {
3053 as_warn (_(".end directive has no name"));
3054 *input_line_pointer = name_end;
3055 demand_empty_rest_of_line ();
3056 return;
3057 }
3058
3059 /* The value is the distance between the .end directive and the
3060 corresponding symbol. We create a fake symbol to hold the
3061 current location, and put in the offset when we write out the
3062 symbol. */
3063 ent = symbol_find (name);
3064 if (ent == (symbolS *) NULL)
3065 as_warn (_(".end directive names unknown symbol"));
3066 else
3067 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3068 symbol_new ("L0\001", now_seg,
3069 (valueT) frag_now_fix (),
3070 frag_now),
3071 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
3072
3073 cur_proc_ptr = (proc_t *) NULL;
3074
3075 *input_line_pointer = name_end;
3076 demand_empty_rest_of_line ();
3077}
3078\f
3079/* Parse .ent directives. */
3080
3081void
3082ecoff_directive_ent (ignore)
3083 int ignore;
3084{
3085 char *name;
3086 char name_end;
3087 register int ch;
3088
3089 if (cur_file_ptr == (efdr_t *) NULL)
3090 add_file ((const char *) NULL, 0, 1);
3091
3092 if (cur_proc_ptr != (proc_t *) NULL)
3093 {
3094 as_warn (_("second .ent directive found before .end directive"));
3095 demand_empty_rest_of_line ();
3096 return;
3097 }
3098
3099 name = input_line_pointer;
3100 name_end = get_symbol_end ();
3101
3102 ch = *name;
3103 if (! is_name_beginner (ch))
3104 {
3105 as_warn (_(".ent directive has no name"));
3106 *input_line_pointer = name_end;
3107 demand_empty_rest_of_line ();
3108 return;
3109 }
3110
3111 add_procedure (name);
3112
3113 *input_line_pointer = name_end;
3114
3115 /* The .ent directive is sometimes followed by a number. I'm not
3116 really sure what the number means. I don't see any way to store
3117 the information in the PDR. The Irix 4 assembler seems to ignore
3118 the information. */
3119 SKIP_WHITESPACE ();
3120 if (*input_line_pointer == ',')
3121 {
3122 ++input_line_pointer;
3123 SKIP_WHITESPACE ();
3124 }
d9a62219
DE		 3125 if (isdigit ((unsigned char) *input_line_pointer)
3126 || *input_line_pointer == '-')
252b5132
RH		 3127 (void) get_absolute_expression ();
3128
3129 demand_empty_rest_of_line ();
3130}
3131\f
3132/* Parse .extern directives. */
3133
3134void
3135ecoff_directive_extern (ignore)
3136 int ignore;
3137{
3138 char *name;
3139 int c;
3140 symbolS *symbolp;
3141 valueT size;
3142
3143 name = input_line_pointer;
3144 c = get_symbol_end ();
3145 symbolp = symbol_find_or_make (name);
3146 *input_line_pointer = c;
3147
3148 S_SET_EXTERNAL (symbolp);
3149
3150 if (*input_line_pointer == ',')
3151 ++input_line_pointer;
3152 size = get_absolute_expression ();
3153
3154 symbolp->ecoff_extern_size = size;
3155}
3156\f
3157/* Parse .file directives. */
3158
3159void
3160ecoff_directive_file (ignore)
3161 int ignore;
3162{
3163 int indx;
3164 char *name;
3165 int len;
3166
3167 if (cur_proc_ptr != (proc_t *) NULL)
3168 {
3169 as_warn (_("No way to handle .file within .ent/.end section"));
3170 demand_empty_rest_of_line ();
3171 return;
3172 }
3173
3174 indx = (int) get_absolute_expression ();
3175
3176 /* FIXME: we don't have to save the name here. */
3177 name = demand_copy_C_string (&len);
3178
3179 add_file (name, indx - 1, 0);
3180
3181 demand_empty_rest_of_line ();
3182}
3183\f
3184/* Parse .fmask directives. */
3185
3186void
3187ecoff_directive_fmask (ignore)
3188 int ignore;
3189{
3190 long val;
3191
3192 if (cur_proc_ptr == (proc_t *) NULL)
3193 {
3194 as_warn (_(".fmask outside of .ent"));
3195 demand_empty_rest_of_line ();
3196 return;
3197 }
3198
3199 if (get_absolute_expression_and_terminator (&val) != ',')
3200 {
3201 as_warn (_("Bad .fmask directive"));
3202 --input_line_pointer;
3203 demand_empty_rest_of_line ();
3204 return;
3205 }
3206
3207 cur_proc_ptr->pdr.fregmask = val;
3208 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3209
3210 demand_empty_rest_of_line ();
3211}
3212\f
3213/* Parse .frame directives. */
3214
3215void
3216ecoff_directive_frame (ignore)
3217 int ignore;
3218{
3219 long val;
3220
3221 if (cur_proc_ptr == (proc_t *) NULL)
3222 {
3223 as_warn (_(".frame outside of .ent"));
3224 demand_empty_rest_of_line ();
3225 return;
3226 }
3227
3228 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3229
3230 SKIP_WHITESPACE ();
3231 if (*input_line_pointer++ != ','
3232 || get_absolute_expression_and_terminator (&val) != ',')
3233 {
3234 as_warn (_("Bad .frame directive"));
3235 --input_line_pointer;
3236 demand_empty_rest_of_line ();
3237 return;
3238 }
3239
3240 cur_proc_ptr->pdr.frameoffset = val;
3241
3242 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3243
3244#if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3245 to Sandro. I don't yet know where this value should be stored, if
3246 anywhere. */
3247 demand_empty_rest_of_line ();
3248#else
3249 s_ignore (42);
3250#endif
3251}
3252\f
3253/* Parse .mask directives. */
3254
3255void
3256ecoff_directive_mask (ignore)
3257 int ignore;
3258{
3259 long val;
3260
3261 if (cur_proc_ptr == (proc_t *) NULL)
3262 {
3263 as_warn (_(".mask outside of .ent"));
3264 demand_empty_rest_of_line ();
3265 return;
3266 }
3267
3268 if (get_absolute_expression_and_terminator (&val) != ',')
3269 {
3270 as_warn (_("Bad .mask directive"));
3271 --input_line_pointer;
3272 demand_empty_rest_of_line ();
3273 return;
3274 }
3275
3276 cur_proc_ptr->pdr.regmask = val;
3277 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3278
3279 demand_empty_rest_of_line ();
3280}
3281\f
3282/* Parse .loc directives. */
3283
3284void
3285ecoff_directive_loc (ignore)
3286 int ignore;
3287{
3288 lineno_list_t *list;
3289 symint_t lineno;
3290
3291 if (cur_file_ptr == (efdr_t *) NULL)
3292 {
3293 as_warn (_(".loc before .file"));
3294 demand_empty_rest_of_line ();
3295 return;
3296 }
3297
3298 if (now_seg != text_section)
3299 {
3300 as_warn (_(".loc outside of .text"));
3301 demand_empty_rest_of_line ();
3302 return;
3303 }
3304
3305 /* Skip the file number. */
3306 SKIP_WHITESPACE ();
3307 get_absolute_expression ();
3308 SKIP_WHITESPACE ();
3309
3310 lineno = get_absolute_expression ();
3311
3312#ifndef NO_LISTING
3313 if (listing)
3314 listing_source_line (lineno);
3315#endif
3316
3317 /* If we're building stabs, then output a special label rather than
3318 ECOFF line number info. */
3319 if (stabs_seen)
3320 {
3321 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3322 symbol_new ("L0\001", now_seg,
3323 (valueT) frag_now_fix (),
3324 frag_now),
3325 (bfd_vma) 0, 0, lineno);
3326 return;
3327 }
3328
3329 list = allocate_lineno_list ();
3330
3331 list->next = (lineno_list_t *) NULL;
3332 list->file = cur_file_ptr;
3333 list->proc = cur_proc_ptr;
3334 list->frag = frag_now;
3335 list->paddr = frag_now_fix ();
3336 list->lineno = lineno;
3337
3338 /* We don't want to merge files which have line numbers. */
3339 cur_file_ptr->fdr.fMerge = 0;
3340
3341 /* A .loc directive will sometimes appear before a .ent directive,
3342 which means that cur_proc_ptr will be NULL here. Arrange to
3343 patch this up. */
3344 if (cur_proc_ptr == (proc_t *) NULL)
3345 {
3346 lineno_list_t **pl;
3347
3348 pl = &noproc_lineno;
3349 while (*pl != (lineno_list_t *) NULL)
3350 pl = &(*pl)->next;
3351 *pl = list;
3352 }
3353 else
3354 {
3355 last_lineno = list;
3356 *last_lineno_ptr = list;
3357 last_lineno_ptr = &list->next;
3358 }
3359}
3360
3361/* The MIPS assembler sometimes inserts nop instructions in the
3362 instruction stream. When this happens, we must patch up the .loc
3363 information so that it points to the instruction after the nop. */
3364
3365void
3366ecoff_fix_loc (old_frag, old_frag_offset)
3367 fragS *old_frag;
3368 unsigned long old_frag_offset;
3369{
3370 if (last_lineno != NULL
3371 && last_lineno->frag == old_frag
3372 && last_lineno->paddr == old_frag_offset)
3373 {
3374 last_lineno->frag = frag_now;
3375 last_lineno->paddr = frag_now_fix ();
3376 }
3377}
3378\f
3379/* Make sure the @stabs symbol is emitted. */
3380
3381static void
3382mark_stabs (ignore)
3383 int ignore;
3384{
3385 if (! stabs_seen)
3386 {
3387 /* Add a dummy @stabs dymbol. */
3388 stabs_seen = 1;
3389 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3390 (symbolS *) NULL,
3391 (bfd_vma) 0, (symint_t) -1,
3392 ECOFF_MARK_STAB (0));
3393 }
3394}
3395\f
3396/* Parse .weakext directives. */
3397#ifndef TC_MIPS
3398/* For TC_MIPS use the version in tc-mips.c. */
3399void
3400ecoff_directive_weakext (ignore)
3401 int ignore;
3402{
3403 char *name;
3404 int c;
3405 symbolS *symbolP;
3406 expressionS exp;
3407
3408 name = input_line_pointer;
3409 c = get_symbol_end ();
3410 symbolP = symbol_find_or_make (name);
3411 *input_line_pointer = c;
3412
3413 SKIP_WHITESPACE ();
3414
3415 if (*input_line_pointer == ',')
3416 {
3417 if (S_IS_DEFINED (symbolP))
3418 {
3419 as_bad (_("Ignoring attempt to redefine symbol `%s'."),
3420 S_GET_NAME (symbolP));
3421 ignore_rest_of_line ();
3422 return;
3423 }
3424
3425 ++input_line_pointer;
3426 SKIP_WHITESPACE ();
3427 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3428 {
3429 expression (&exp);
3430 if (exp.X_op != O_symbol)
3431 {
3432 as_bad (_("bad .weakext directive"));
3433 ignore_rest_of_line();
3434 return;
3435 }
3436 symbolP->sy_value = exp;
3437 }
3438 }
3439
3440 S_SET_WEAK (symbolP);
3441
3442 demand_empty_rest_of_line ();
3443}
3444#endif /* not TC_MIPS */
3445\f
3446/* Handle .stabs directives. The actual parsing routine is done by a
3447 generic routine. This routine is called via OBJ_PROCESS_STAB.
3448 When this is called, input_line_pointer will be pointing at the
3449 value field of the stab.
3450
3451 .stabs directives have five fields:
3452 "string" a string, encoding the type information.
3453 code a numeric code, defined in <stab.h>
3454 0 a zero
3455 desc a zero or line number
3456 value a numeric value or an address.
3457
3458 If the value is relocatable, we transform this into:
3459 iss points as an index into string space
3460 value value from lookup of the name
3461 st st from lookup of the name
3462 sc sc from lookup of the name
3463 index code|CODE_MASK
3464
3465 If the value is not relocatable, we transform this into:
3466 iss points as an index into string space
3467 value value
3468 st st_Nil
3469 sc sc_Nil
3470 index code|CODE_MASK
3471
3472 .stabn directives have four fields (string is null):
3473 code a numeric code, defined in <stab.h>
3474 0 a zero
3475 desc a zero or a line number
3476 value a numeric value or an address. */
3477
3478void
3479ecoff_stab (sec, what, string, type, other, desc)
3480 segT sec;
3481 int what;
3482 const char *string;
3483 int type;
3484 int other;
3485 int desc;
3486{
3487 efdr_t *save_file_ptr = cur_file_ptr;
3488 symbolS *sym;
3489 symint_t value;
3490 bfd_vma addend;
3491 st_t st;
3492 sc_t sc;
3493 symint_t indx;
3494 localsym_t *hold = NULL;
3495
3496 ecoff_debugging_seen = 1;
3497
3498 /* We don't handle .stabd. */
3499 if (what != 's' && what != 'n')
3500 {
3501 as_bad (_(".stab%c is not supported"), what);
3502 return;
3503 }
3504
3505 /* A .stabn uses a null name, not an empty string. */
3506 if (what == 'n')
3507 string = NULL;
3508
3509 /* We ignore the other field. */
3510 if (other != 0)
3511 as_warn (_(".stab%c: ignoring non-zero other field"), what);
3512
3513 /* Make sure we have a current file. */
3514 if (cur_file_ptr == (efdr_t *) NULL)
3515 {
3516 add_file ((const char *) NULL, 0, 1);
3517 save_file_ptr = cur_file_ptr;
3518 }
3519
3520 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3521 signal to gdb. */
3522 if (stabs_seen == 0)
3523 mark_stabs (0);
3524
3525 /* Line number stabs are handled differently, since they have two
3526 values, the line number and the address of the label. We use the
3527 index field (aka desc) to hold the line number, and the value
3528 field to hold the address. The symbol type is st_Label, which
3529 should be different from the other stabs, so that gdb can
3530 recognize it. */
3531 if (type == N_SLINE)
3532 {
3533 SYMR dummy_symr;
3534 char *name;
3535 char name_end;
3536
3537#ifndef NO_LISTING
3538 if (listing)
3539 listing_source_line ((unsigned int) desc);
3540#endif
3541
3542 dummy_symr.index = desc;
3543 if (dummy_symr.index != desc)
3544 {
3545 as_warn (_("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)"),
3546 desc, what);
3547 return;
3548 }
3549
3550 name = input_line_pointer;
3551 name_end = get_symbol_end ();
3552
3553 sym = symbol_find_or_make (name);
3554 *input_line_pointer = name_end;
3555
3556 value = 0;
3557 addend = 0;
3558 st = st_Label;
3559 sc = sc_Text;
3560 indx = desc;
3561 }
3562 else
3563 {
3564#ifndef NO_LISTING
3565 if (listing && (type == N_SO || type == N_SOL))
3566 listing_source_file (string);
3567#endif
3568
d9a62219 3569 if (isdigit ((unsigned char) *input_line_pointer)
252b5132
RH		 3570 || *input_line_pointer == '-'
3571 || *input_line_pointer == '+')
3572 {
3573 st = st_Nil;
3574 sc = sc_Nil;
3575 sym = (symbolS *) NULL;
3576 value = get_absolute_expression ();
3577 addend = 0;
3578 }
3579 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3580 {
3581 as_warn (_("Illegal .stab%c directive, bad character"), what);
3582 return;
3583 }
3584 else
3585 {
3586 expressionS exp;
3587
3588 sc = sc_Nil;
3589 st = st_Nil;
3590
3591 expression (&exp);
3592 if (exp.X_op == O_constant)
3593 {
3594 sym = NULL;
3595 value = exp.X_add_number;
3596 addend = 0;
3597 }
3598 else if (exp.X_op == O_symbol)
3599 {
3600 sym = exp.X_add_symbol;
3601 value = 0;
3602 addend = exp.X_add_number;
3603 }
3604 else
3605 {
3606 sym = make_expr_symbol (&exp);
3607 value = 0;
3608 addend = 0;
3609 }
3610 }
3611
3612 indx = ECOFF_MARK_STAB (type);
3613 }
3614
3615 /* Don't store the stabs symbol we are creating as the type of the
3616 ECOFF symbol. We want to compute the type of the ECOFF symbol
3617 independently. */
3618 if (sym != (symbolS *) NULL)
3619 hold = sym->ecoff_symbol;
3620
3621 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
3622
3623 if (sym != (symbolS *) NULL)
3624 sym->ecoff_symbol = hold;
3625
3626 /* Restore normal file type. */
3627 cur_file_ptr = save_file_ptr;
3628}
3629\f
3630/* Frob an ECOFF symbol. Small common symbols go into a special
3631 .scommon section rather than bfd_com_section. */
3632
3633void
3634ecoff_frob_symbol (sym)
3635 symbolS *sym;
3636{
3637 if (S_IS_COMMON (sym)
3638 && S_GET_VALUE (sym) > 0
3639 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
3640 {
3641 static asection scom_section;
3642 static asymbol scom_symbol;
3643
3644 /* We must construct a fake section similar to bfd_com_section
3645 but with the name .scommon. */
3646 if (scom_section.name == NULL)
3647 {
3648 scom_section = bfd_com_section;
3649 scom_section.name = ".scommon";
3650 scom_section.output_section = &scom_section;
3651 scom_section.symbol = &scom_symbol;
3652 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3653 scom_symbol = *bfd_com_section.symbol;
3654 scom_symbol.name = ".scommon";
3655 scom_symbol.section = &scom_section;
3656 }
3657 S_SET_SEGMENT (sym, &scom_section);
3658 }
3659
3660 /* Double check weak symbols. */
3661 if (sym->bsym->flags & BSF_WEAK)
3662 {
3663 if (S_IS_COMMON (sym))
3664 as_bad (_("Symbol `%s' can not be both weak and common"),
3665 S_GET_NAME (sym));
3666 }
3667}
3668\f
3669/* Add bytes to the symbolic information buffer. */
3670
3671static char *
3672ecoff_add_bytes (buf, bufend, bufptr, need)
3673 char **buf;
3674 char **bufend;
3675 char *bufptr;
3676 unsigned long need;
3677{
3678 unsigned long at;
3679 unsigned long want;
3680
3681 at = bufptr - *buf;
3682 need -= *bufend - bufptr;
3683 if (need < PAGE_SIZE)
3684 need = PAGE_SIZE;
3685 want = (*bufend - *buf) + need;
3686 *buf = xrealloc (*buf, want);
3687 *bufend = *buf + want;
3688 return *buf + at;
3689}
3690
3691/* Adjust the symbolic information buffer to the alignment required
3692 for the ECOFF target debugging information. */
3693
3694static unsigned long
3695ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3696 const struct ecoff_debug_swap *backend;
3697 char **buf;
3698 char **bufend;
3699 unsigned long offset;
3700 char **bufptrptr;
3701{
3702 bfd_size_type align;
3703
3704 align = backend->debug_align;
3705 if ((offset & (align - 1)) != 0)
3706 {
3707 unsigned long add;
3708
3709 add = align - (offset & (align - 1));
3710 if (*bufend - (*buf + offset) < add)
3711 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3712 memset (*buf + offset, 0, add);
3713 offset += add;
3714 if (bufptrptr != (char **) NULL)
3715 *bufptrptr = *buf + offset;
3716 }
3717
3718 return offset;
3719}
3720
3721/* Build the line number information. */
3722
3723static unsigned long
3724ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3725 const struct ecoff_debug_swap *backend;
3726 char **buf;
3727 char **bufend;
3728 unsigned long offset;
3729 long *linecntptr;
3730{
3731 char *bufptr;
3732 register lineno_list_t *l;
3733 lineno_list_t *last;
3734 efdr_t *file;
3735 proc_t *proc;
3736 unsigned long c;
3737 long iline;
3738 long totcount;
3739 lineno_list_t first;
3740 lineno_list_t *local_first_lineno = first_lineno;
3741
3742 if (linecntptr != (long *) NULL)
3743 *linecntptr = 0;
3744
3745 bufptr = *buf + offset;
3746
3747 file = (efdr_t *) NULL;
3748 proc = (proc_t *) NULL;
3749 last = (lineno_list_t *) NULL;
3750 c = offset;
3751 iline = 0;
3752 totcount = 0;
3753
3754 /* For some reason the address of the first procedure is ignored
3755 when reading line numbers. This doesn't matter if the address of
3756 the first procedure is 0, but when gcc is generating MIPS
3757 embedded PIC code, it will put strings in the .text section
3758 before the first procedure. We cope by inserting a dummy line if
3759 the address of the first procedure is not 0. Hopefully this
3760 won't screw things up too badly.
3761
3762 Don't do this for ECOFF assembly source line numbers. They work
3763 without this extra attention. */
3764 if (debug_type != DEBUG_ECOFF
3765 && first_proc_ptr != (proc_t *) NULL
3766 && local_first_lineno != (lineno_list_t *) NULL
3767 && ((S_GET_VALUE (first_proc_ptr->sym->as_sym)
3768 + bfd_get_section_vma (stdoutput,
3769 S_GET_SEGMENT (first_proc_ptr->sym->as_sym)))
3770 != 0))
3771 {
3772 first.file = local_first_lineno->file;
3773 first.proc = local_first_lineno->proc;
3774 first.frag = &zero_address_frag;
3775 first.paddr = 0;
3776 first.lineno = 0;
3777
3778 first.next = local_first_lineno;
3779 local_first_lineno = &first;
3780 }
3781
3782 for (l = local_first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3783 {
3784 long count;
3785 long delta;
3786
3787 /* Get the offset to the memory address of the next line number
3788 (in words). Do this first, so that we can skip ahead to the
3789 next useful line number entry. */
3790 if (l->next == (lineno_list_t *) NULL)
3791 {
3792 /* We want a count of zero, but it will be decremented
3793 before it is used. */
3794 count = 1;
3795 }
3796 else if (l->next->frag->fr_address + l->next->paddr
3797 > l->frag->fr_address + l->paddr)
3798 {
3799 count = ((l->next->frag->fr_address + l->next->paddr
3800 - (l->frag->fr_address + l->paddr))
3801 >> 2);
3802 }
3803 else
3804 {
3805 /* Don't change last, so we still get the right delta. */
3806 continue;
3807 }
3808
3809 if (l->file != file || l->proc != proc)
3810 {
3811 if (l->proc != proc && proc != (proc_t *) NULL)
3812 proc->pdr.lnHigh = last->lineno;
3813 if (l->file != file && file != (efdr_t *) NULL)
3814 {
3815 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3816 file->fdr.cline = totcount + count;
3817 if (linecntptr != (long *) NULL)
3818 *linecntptr += totcount + count;
3819 totcount = 0;
3820 }
3821
3822 if (l->file != file)
3823 {
3824 efdr_t *last_file = file;
3825
3826 file = l->file;
3827 if (last_file != (efdr_t *) NULL)
3828 file->fdr.ilineBase
3829 = last_file->fdr.ilineBase + last_file->fdr.cline;
3830 else
3831 file->fdr.ilineBase = 0;
3832 file->fdr.cbLineOffset = c;
3833 }
3834 if (l->proc != proc)
3835 {
3836 proc = l->proc;
3837 if (proc != (proc_t *) NULL)
3838 {
3839 proc->pdr.lnLow = l->lineno;
3840 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3841 proc->pdr.iline = totcount;
3842 }
3843 }
3844
3845 last = (lineno_list_t *) NULL;
3846 }
3847
3848 totcount += count;
3849
3850 /* Get the offset to this line number. */
3851 if (last == (lineno_list_t *) NULL)
3852 delta = 0;
3853 else
3854 delta = l->lineno - last->lineno;
3855
3856 /* Put in the offset to this line number. */
3857 while (delta != 0)
3858 {
3859 int setcount;
3860
3861 /* 1 is added to each count read. */
3862 --count;
3863 /* We can only adjust the word count by up to 15 words at a
3864 time. */
3865 if (count <= 0x0f)
3866 {
3867 setcount = count;
3868 count = 0;
3869 }
3870 else
3871 {
3872 setcount = 0x0f;
3873 count -= 0x0f;
3874 }
3875 if (delta >= -7 && delta <= 7)
3876 {
3877 if (bufptr >= *bufend)
3878 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3879 *bufptr++ = setcount + (delta << 4);
3880 delta = 0;
3881 ++c;
3882 }
3883 else
3884 {
3885 int set;
3886
3887 if (*bufend - bufptr < 3)
3888 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3889 *bufptr++ = setcount + (8 << 4);
3890 if (delta < -0x8000)
3891 {
3892 set = -0x8000;
3893 delta += 0x8000;
3894 }
3895 else if (delta > 0x7fff)
3896 {
3897 set = 0x7fff;
3898 delta -= 0x7fff;
3899 }
3900 else
3901 {
3902 set = delta;
3903 delta = 0;
3904 }
3905 *bufptr++ = set >> 8;
3906 *bufptr++ = set & 0xffff;
3907 c += 3;
3908 }
3909 }
3910
3911 /* Finish adjusting the count. */
3912 while (count > 0)
3913 {
3914 if (bufptr >= *bufend)
3915 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3916 /* 1 is added to each count read. */
3917 --count;
3918 if (count > 0x0f)
3919 {
3920 *bufptr++ = 0x0f;
3921 count -= 0x0f;
3922 }
3923 else
3924 {
3925 *bufptr++ = count;
3926 count = 0;
3927 }
3928 ++c;
3929 }
3930
3931 ++iline;
3932 last = l;
3933 }
3934
3935 if (proc != (proc_t *) NULL)
3936 proc->pdr.lnHigh = last->lineno;
3937 if (file != (efdr_t *) NULL)
3938 {
3939 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3940 file->fdr.cline = totcount;
3941 }
3942
3943 if (linecntptr != (long *) NULL)
3944 *linecntptr += totcount;
3945
3946 c = ecoff_padding_adjust (backend, buf, bufend, c, &bufptr);
3947
3948 return c;
3949}
3950
3951/* Build and swap out the symbols. */
3952
3953static unsigned long
3954ecoff_build_symbols (backend, buf, bufend, offset)
3955 const struct ecoff_debug_swap *backend;
3956 char **buf;
3957 char **bufend;
3958 unsigned long offset;
3959{
3960 const bfd_size_type external_sym_size = backend->external_sym_size;
3961 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3962 = backend->swap_sym_out;
3963 char *sym_out;
3964 long isym;
3965 vlinks_t *file_link;
3966
3967 sym_out = *buf + offset;
3968
3969 isym = 0;
3970
3971 /* The symbols are stored by file. */
3972 for (file_link = file_desc.first;
3973 file_link != (vlinks_t *) NULL;
3974 file_link = file_link->next)
3975 {
3976 int ifilesym;
3977 int fil_cnt;
3978 efdr_t *fil_ptr;
3979 efdr_t *fil_end;
3980
3981 if (file_link->next == (vlinks_t *) NULL)
3982 fil_cnt = file_desc.objects_last_page;
3983 else
3984 fil_cnt = file_desc.objects_per_page;
3985 fil_ptr = file_link->datum->file;
3986 fil_end = fil_ptr + fil_cnt;
3987 for (; fil_ptr < fil_end; fil_ptr++)
3988 {
3989 vlinks_t *sym_link;
3990
3991 fil_ptr->fdr.isymBase = isym;
3992 ifilesym = isym;
3993 for (sym_link = fil_ptr->symbols.first;
3994 sym_link != (vlinks_t *) NULL;
3995 sym_link = sym_link->next)
3996 {
3997 int sym_cnt;
3998 localsym_t *sym_ptr;
3999 localsym_t *sym_end;
4000
4001 if (sym_link->next == (vlinks_t *) NULL)
4002 sym_cnt = fil_ptr->symbols.objects_last_page;
4003 else
4004 sym_cnt = fil_ptr->symbols.objects_per_page;
4005 sym_ptr = sym_link->datum->sym;
4006 sym_end = sym_ptr + sym_cnt;
4007 for (; sym_ptr < sym_end; sym_ptr++)
4008 {
4009 int local;
4010 symbolS *as_sym;
4011 forward_t *f;
4012
4013 know (sym_ptr->file_ptr == fil_ptr);
4014
4015 /* If there is no associated gas symbol, then this
4016 is a pure debugging symbol. We have already
4017 added the name (if any) to fil_ptr->strings.
4018 Otherwise we must decide whether this is an
4019 external or a local symbol (actually, it may be
4020 both if the local provides additional debugging
4021 information for the external). */
4022 local = 1;
4023 as_sym = sym_ptr->as_sym;
4024 if (as_sym != (symbolS *) NULL)
4025 {
4026 symint_t indx;
4027
4028 /* The value of a block start symbol is the
4029 offset from the start of the procedure. For
4030 other symbols we just use the gas value (but
4031 we must offset it by the vma of the section,
4032 just as BFD does, because BFD will not see
4033 this value). */
4034 if (sym_ptr->ecoff_sym.asym.st == (int) st_Block
4035 && sym_ptr->ecoff_sym.asym.sc == (int) sc_Text)
4036 {
4037 symbolS *begin_sym;
4038
4039 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4040 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4041 if (S_GET_SEGMENT (as_sym)
4042 != S_GET_SEGMENT (begin_sym))
4043 as_warn (_(".begin/.bend in different segments"));
4044 sym_ptr->ecoff_sym.asym.value =
4045 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4046 }
4047 else
4048 sym_ptr->ecoff_sym.asym.value =
4049 (S_GET_VALUE (as_sym)
4050 + bfd_get_section_vma (stdoutput,
4051 S_GET_SEGMENT (as_sym))
4052 + sym_ptr->addend);
4053
4054 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4055
4056 /* Set st_Proc to st_StaticProc for local
4057 functions. */
4058 if (sym_ptr->ecoff_sym.asym.st == st_Proc
4059 && S_IS_DEFINED (as_sym)
4060 && ! S_IS_EXTERNAL (as_sym)
4061 && ! S_IS_WEAK (as_sym))
4062 sym_ptr->ecoff_sym.asym.st = st_StaticProc;
4063
4064 /* Get the type and storage class based on where
4065 the symbol actually wound up. Traditionally,
4066 N_LBRAC and N_RBRAC are *not* relocated. */
4067 indx = sym_ptr->ecoff_sym.asym.index;
4068 if (sym_ptr->ecoff_sym.asym.st == st_Nil
4069 && sym_ptr->ecoff_sym.asym.sc == sc_Nil
4070 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4071 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
4072 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
4073 {
4074 segT seg;
4075 const char *segname;
4076 st_t st;
4077 sc_t sc;
4078
4079 seg = S_GET_SEGMENT (as_sym);
4080 segname = segment_name (seg);
4081
4082 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4083 && (S_IS_EXTERNAL (as_sym)
4084 || S_IS_WEAK (as_sym)
4085 || ! S_IS_DEFINED (as_sym)))
4086 {
4087 if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
4088 st = st_Proc;
4089 else
4090 st = st_Global;
4091 }
4092 else if (seg == text_section)
4093 st = st_Label;
4094 else
4095 st = st_Static;
4096
4097 if (! S_IS_DEFINED (as_sym))
4098 {
4099 if (as_sym->ecoff_extern_size == 0
4100 || (as_sym->ecoff_extern_size
4101 > bfd_get_gp_size (stdoutput)))
4102 sc = sc_Undefined;
4103 else
4104 {
4105 sc = sc_SUndefined;
4106 sym_ptr->ecoff_sym.asym.value =
4107 as_sym->ecoff_extern_size;
4108 }
4109#ifdef S_SET_SIZE
4110 S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
4111#endif
4112 }
4113 else if (S_IS_COMMON (as_sym))
4114 {
4115 if (S_GET_VALUE (as_sym) > 0
4116 && (S_GET_VALUE (as_sym)
4117 <= bfd_get_gp_size (stdoutput)))
4118 sc = sc_SCommon;
4119 else
4120 sc = sc_Common;
4121 }
4122 else if (seg == text_section)
4123 sc = sc_Text;
4124 else if (seg == data_section)
4125 sc = sc_Data;
4126 else if (strcmp (segname, ".rdata") == 0
4127 || strcmp (segname, ".rodata") == 0)
4128 sc = sc_RData;
4129 else if (strcmp (segname, ".sdata") == 0)
4130 sc = sc_SData;
4131 else if (seg == bss_section)
4132 sc = sc_Bss;
4133 else if (strcmp (segname, ".sbss") == 0)
4134 sc = sc_SBss;
4135 else if (seg == &bfd_abs_section)
4136 sc = sc_Abs;
4137 else
4138 {
4139 /* This must be a user named section.
4140 This is not possible in ECOFF, but it
4141 is in ELF. */
4142 sc = sc_Data;
4143 }
4144
4145 sym_ptr->ecoff_sym.asym.st = (int) st;
4146 sym_ptr->ecoff_sym.asym.sc = (int) sc;
4147 }
4148
4149 /* This is just an external symbol if it is
4150 outside a procedure and it has a type.
4151 FIXME: g++ will generate symbols which have
4152 different names in the debugging information
4153 than the actual symbol. Should we handle
4154 them here? */
4155 if ((S_IS_EXTERNAL (as_sym)
4156 || S_IS_WEAK (as_sym)
4157 || ! S_IS_DEFINED (as_sym))
4158 && sym_ptr->proc_ptr == (proc_t *) NULL
4159 && sym_ptr->ecoff_sym.asym.st != (int) st_Nil
4160 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym))
4161 local = 0;
4162
4163 /* This is just an external symbol if it is a
4164 common symbol. */
4165 if (S_IS_COMMON (as_sym))
4166 local = 0;
4167
4168 /* If an st_end symbol has an associated gas
4169 symbol, then it is a local label created for
4170 a .bend or .end directive. Stabs line
4171 numbers will have \001 in the names. */
4172 if (local
4173 && sym_ptr->ecoff_sym.asym.st != st_End
4174 && strchr (sym_ptr->name, '\001') == 0)
4175 sym_ptr->ecoff_sym.asym.iss =
4176 add_string (&fil_ptr->strings,
4177 fil_ptr->str_hash,
4178 sym_ptr->name,
4179 (shash_t **) NULL);
4180 }
4181
4182 /* We now know the index of this symbol; fill in
4183 locations that have been waiting for that
4184 information. */
4185 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
4186 {
4187 localsym_t *begin_ptr;
4188 st_t begin_type;
4189
4190 know (local);
4191 begin_ptr = sym_ptr->begin_ptr;
4192 know (begin_ptr->sym_index != -1);
4193 sym_ptr->ecoff_sym.asym.index = begin_ptr->sym_index;
4194 if (sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4195 sym_ptr->ecoff_sym.asym.iss =
4196 begin_ptr->ecoff_sym.asym.iss;
4197
4198 begin_type = begin_ptr->ecoff_sym.asym.st;
4199 if (begin_type == st_File
4200 || begin_type == st_Block)
4201 {
4202 begin_ptr->ecoff_sym.asym.index =
4203 isym - ifilesym + 1;
4204 (*swap_sym_out) (stdoutput,
4205 &begin_ptr->ecoff_sym.asym,
4206 (*buf
4207 + offset
4208 + (begin_ptr->sym_index
4209 * external_sym_size)));
4210 }
4211 else
4212 {
4213 know (begin_ptr->index_ptr != (aux_t *) NULL);
4214 begin_ptr->index_ptr->data.isym =
4215 isym - ifilesym + 1;
4216 }
4217
4218 /* The value of the symbol marking the end of a
4219 procedure is the size of the procedure. The
4220 value of the symbol marking the end of a
4221 block is the offset from the start of the
4222 procedure to the block. */
4223 if (begin_type == st_Proc
4224 || begin_type == st_StaticProc)
4225 {
4226 know (as_sym != (symbolS *) NULL);
4227 know (begin_ptr->as_sym != (symbolS *) NULL);
4228 if (S_GET_SEGMENT (as_sym)
4229 != S_GET_SEGMENT (begin_ptr->as_sym))
4230 as_warn (_(".begin/.bend in different segments"));
4231 sym_ptr->ecoff_sym.asym.value =
4232 (S_GET_VALUE (as_sym)
4233 - S_GET_VALUE (begin_ptr->as_sym));
4234
4235 /* If the size is odd, this is probably a
4236 mips16 function; force it to be even. */
4237 if ((sym_ptr->ecoff_sym.asym.value & 1) != 0)
4238 ++sym_ptr->ecoff_sym.asym.value;
4239
4240#ifdef S_SET_SIZE
4241 S_SET_SIZE (begin_ptr->as_sym,
4242 sym_ptr->ecoff_sym.asym.value);
4243#endif
4244 }
4245 else if (begin_type == st_Block
4246 && sym_ptr->ecoff_sym.asym.sc != (int) sc_Info)
4247 {
4248 symbolS *begin_sym;
4249
4250 know (as_sym != (symbolS *) NULL);
4251 know (sym_ptr->proc_ptr != (proc_t *) NULL);
4252 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
4253 if (S_GET_SEGMENT (as_sym)
4254 != S_GET_SEGMENT (begin_sym))
4255 as_warn (_(".begin/.bend in different segments"));
4256 sym_ptr->ecoff_sym.asym.value =
4257 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4258 }
4259 }
4260
4261 for (f = sym_ptr->forward_ref;
4262 f != (forward_t *) NULL;
4263 f = f->next)
4264 {
4265 know (local);
4266 f->ifd_ptr->data.isym = fil_ptr->file_index;
4267 f->index_ptr->data.rndx.index = isym - ifilesym;
4268 }
4269
4270 if (local)
4271 {
4272 if (*bufend - sym_out < external_sym_size)
4273 sym_out = ecoff_add_bytes (buf, bufend,
4274 sym_out,
4275 external_sym_size);
4276 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym.asym,
4277 sym_out);
4278 sym_out += external_sym_size;
4279
4280 sym_ptr->sym_index = isym;
4281
4282 if (sym_ptr->proc_ptr != (proc_t *) NULL
4283 && sym_ptr->proc_ptr->sym == sym_ptr)
4284 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4285
4286 ++isym;
4287 }
4288
4289 /* Record the local symbol index and file number in
4290 case this is an external symbol. Note that this
4291 destroys the asym.index field. */
4292 if (as_sym != (symbolS *) NULL
4293 && as_sym->ecoff_symbol == sym_ptr)
4294 {
4295 if ((sym_ptr->ecoff_sym.asym.st == st_Proc
4296 || sym_ptr->ecoff_sym.asym.st == st_StaticProc)
4297 && local)
4298 sym_ptr->ecoff_sym.asym.index = isym - ifilesym - 1;
4299 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4300
4301 /* Don't try to merge an FDR which has an
4302 external symbol attached to it. */
4303 if (S_IS_EXTERNAL (as_sym) || S_IS_WEAK (as_sym))
4304 fil_ptr->fdr.fMerge = 0;
4305 }
4306 }
4307 }
4308 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4309 }
4310 }
4311
4312 return offset + isym * external_sym_size;
4313}
4314
4315/* Swap out the procedure information. */
4316
4317static unsigned long
4318ecoff_build_procs (backend, buf, bufend, offset)
4319 const struct ecoff_debug_swap *backend;
4320 char **buf;
4321 char **bufend;
4322 unsigned long offset;
4323{
4324 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4325 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4326 = backend->swap_pdr_out;
4327 char *pdr_out;
4328 long iproc;
4329 vlinks_t *file_link;
4330
4331 pdr_out = *buf + offset;
4332
4333 iproc = 0;
4334
4335 /* The procedures are stored by file. */
4336 for (file_link = file_desc.first;
4337 file_link != (vlinks_t *) NULL;
4338 file_link = file_link->next)
4339 {
4340 int fil_cnt;
4341 efdr_t *fil_ptr;
4342 efdr_t *fil_end;
4343
4344 if (file_link->next == (vlinks_t *) NULL)
4345 fil_cnt = file_desc.objects_last_page;
4346 else
4347 fil_cnt = file_desc.objects_per_page;
4348 fil_ptr = file_link->datum->file;
4349 fil_end = fil_ptr + fil_cnt;
4350 for (; fil_ptr < fil_end; fil_ptr++)
4351 {
4352 vlinks_t *proc_link;
4353 int first;
4354
4355 fil_ptr->fdr.ipdFirst = iproc;
4356 first = 1;
4357 for (proc_link = fil_ptr->procs.first;
4358 proc_link != (vlinks_t *) NULL;
4359 proc_link = proc_link->next)
4360 {
4361 int prc_cnt;
4362 proc_t *proc_ptr;
4363 proc_t *proc_end;
4364
4365 if (proc_link->next == (vlinks_t *) NULL)
4366 prc_cnt = fil_ptr->procs.objects_last_page;
4367 else
4368 prc_cnt = fil_ptr->procs.objects_per_page;
4369 proc_ptr = proc_link->datum->proc;
4370 proc_end = proc_ptr + prc_cnt;
4371 for (; proc_ptr < proc_end; proc_ptr++)
4372 {
4373 symbolS *adr_sym;
4374 unsigned long adr;
4375
4376 adr_sym = proc_ptr->sym->as_sym;
4377 adr = (S_GET_VALUE (adr_sym)
4378 + bfd_get_section_vma (stdoutput,
4379 S_GET_SEGMENT (adr_sym)));
4380 if (first)
4381 {
4382 /* This code used to force the adr of the very
4383 first fdr to be 0. However, the native tools
4384 don't do that, and I can't remember why it
4385 used to work that way, so I took it out. */
4386 fil_ptr->fdr.adr = adr;
4387 first = 0;
4388 }
4389 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4390 if (*bufend - pdr_out < external_pdr_size)
4391 pdr_out = ecoff_add_bytes (buf, bufend,
4392 pdr_out,
4393 external_pdr_size);
4394 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4395 pdr_out += external_pdr_size;
4396 ++iproc;
4397 }
4398 }
4399 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4400 }
4401 }
4402
4403 return offset + iproc * external_pdr_size;
4404}
4405
4406/* Swap out the aux information. */
4407
4408static unsigned long
4409ecoff_build_aux (backend, buf, bufend, offset)
4410 const struct ecoff_debug_swap *backend;
4411 char **buf;
4412 char **bufend;
4413 unsigned long offset;
4414{
4415 int bigendian;
4416 union aux_ext *aux_out;
4417 long iaux;
4418 vlinks_t *file_link;
4419
4420 bigendian = bfd_big_endian (stdoutput);
4421
4422 aux_out = (union aux_ext *) (*buf + offset);
4423
4424 iaux = 0;
4425
4426 /* The aux entries are stored by file. */
4427 for (file_link = file_desc.first;
4428 file_link != (vlinks_t *) NULL;
4429 file_link = file_link->next)
4430 {
4431 int fil_cnt;
4432 efdr_t *fil_ptr;
4433 efdr_t *fil_end;
4434
4435 if (file_link->next == (vlinks_t *) NULL)
4436 fil_cnt = file_desc.objects_last_page;
4437 else
4438 fil_cnt = file_desc.objects_per_page;
4439 fil_ptr = file_link->datum->file;
4440 fil_end = fil_ptr + fil_cnt;
4441 for (; fil_ptr < fil_end; fil_ptr++)
4442 {
4443 vlinks_t *aux_link;
4444
4445 fil_ptr->fdr.fBigendian = bigendian;
4446 fil_ptr->fdr.iauxBase = iaux;
4447 for (aux_link = fil_ptr->aux_syms.first;
4448 aux_link != (vlinks_t *) NULL;
4449 aux_link = aux_link->next)
4450 {
4451 int aux_cnt;
4452 aux_t *aux_ptr;
4453 aux_t *aux_end;
4454
4455 if (aux_link->next == (vlinks_t *) NULL)
4456 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4457 else
4458 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4459 aux_ptr = aux_link->datum->aux;
4460 aux_end = aux_ptr + aux_cnt;
4461 for (; aux_ptr < aux_end; aux_ptr++)
4462 {
4463 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4464 aux_out = ((union aux_ext *)
4465 ecoff_add_bytes (buf, bufend,
4466 (char *) aux_out,
4467 sizeof (union aux_ext)));
4468 switch (aux_ptr->type)
4469 {
4470 case aux_tir:
4471 (*backend->swap_tir_out) (bigendian,
4472 &aux_ptr->data.ti,
4473 &aux_out->a_ti);
4474 break;
4475 case aux_rndx:
4476 (*backend->swap_rndx_out) (bigendian,
4477 &aux_ptr->data.rndx,
4478 &aux_out->a_rndx);
4479 break;
4480 case aux_dnLow:
4481 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4482 aux_out);
4483 break;
4484 case aux_dnHigh:
4485 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4486 aux_out);
4487 break;
4488 case aux_isym:
4489 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4490 aux_out);
4491 break;
4492 case aux_iss:
4493 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4494 aux_out);
4495 break;
4496 case aux_width:
4497 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4498 aux_out);
4499 break;
4500 case aux_count:
4501 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4502 aux_out);
4503 break;
4504 }
4505
4506 ++aux_out;
4507 ++iaux;
4508 }
4509 }
4510 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4511 }
4512 }
4513
4514 return ecoff_padding_adjust (backend, buf, bufend,
4515 offset + iaux * sizeof (union aux_ext),
4516 (char **) NULL);
4517}
4518
4519/* Copy out the strings from a varray_t. This returns the number of
4520 bytes copied, rather than the new offset. */
4521
4522static unsigned long
4523ecoff_build_strings (buf, bufend, offset, vp)
4524 char **buf;
4525 char **bufend;
4526 unsigned long offset;
4527 varray_t *vp;
4528{
4529 unsigned long istr;
4530 char *str_out;
4531 vlinks_t *str_link;
4532
4533 str_out = *buf + offset;
4534
4535 istr = 0;
4536
4537 for (str_link = vp->first;
4538 str_link != (vlinks_t *) NULL;
4539 str_link = str_link->next)
4540 {
4541 unsigned long str_cnt;
4542
4543 if (str_link->next == (vlinks_t *) NULL)
4544 str_cnt = vp->objects_last_page;
4545 else
4546 str_cnt = vp->objects_per_page;
4547
4548 if (*bufend - str_out < str_cnt)
4549 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4550
4551 memcpy (str_out, str_link->datum->byte, str_cnt);
4552 str_out += str_cnt;
4553 istr += str_cnt;
4554 }
4555
4556 return istr;
4557}
4558
4559/* Dump out the local strings. */
4560
4561static unsigned long
4562ecoff_build_ss (backend, buf, bufend, offset)
4563 const struct ecoff_debug_swap *backend;
4564 char **buf;
4565 char **bufend;
4566 unsigned long offset;
4567{
4568 long iss;
4569 vlinks_t *file_link;
4570
4571 iss = 0;
4572
4573 for (file_link = file_desc.first;
4574 file_link != (vlinks_t *) NULL;
4575 file_link = file_link->next)
4576 {
4577 int fil_cnt;
4578 efdr_t *fil_ptr;
4579 efdr_t *fil_end;
4580
4581 if (file_link->next == (vlinks_t *) NULL)
4582 fil_cnt = file_desc.objects_last_page;
4583 else
4584 fil_cnt = file_desc.objects_per_page;
4585 fil_ptr = file_link->datum->file;
4586 fil_end = fil_ptr + fil_cnt;
4587 for (; fil_ptr < fil_end; fil_ptr++)
4588 {
4589 long ss_cnt;
4590
4591 fil_ptr->fdr.issBase = iss;
4592 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4593 &fil_ptr->strings);
4594 fil_ptr->fdr.cbSs = ss_cnt;
4595 iss += ss_cnt;
4596 }
4597 }
4598
4599 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4600 (char **) NULL);
4601}
4602
4603/* Swap out the file descriptors. */
4604
4605static unsigned long
4606ecoff_build_fdr (backend, buf, bufend, offset)
4607 const struct ecoff_debug_swap *backend;
4608 char **buf;
4609 char **bufend;
4610 unsigned long offset;
4611{
4612 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4613 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4614 = backend->swap_fdr_out;
4615 long ifile;
4616 char *fdr_out;
4617 vlinks_t *file_link;
4618
4619 ifile = 0;
4620
4621 fdr_out = *buf + offset;
4622
4623 for (file_link = file_desc.first;
4624 file_link != (vlinks_t *) NULL;
4625 file_link = file_link->next)
4626 {
4627 int fil_cnt;
4628 efdr_t *fil_ptr;
4629 efdr_t *fil_end;
4630
4631 if (file_link->next == (vlinks_t *) NULL)
4632 fil_cnt = file_desc.objects_last_page;
4633 else
4634 fil_cnt = file_desc.objects_per_page;
4635 fil_ptr = file_link->datum->file;
4636 fil_end = fil_ptr + fil_cnt;
4637 for (; fil_ptr < fil_end; fil_ptr++)
4638 {
4639 if (*bufend - fdr_out < external_fdr_size)
4640 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4641 external_fdr_size);
4642 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4643 fdr_out += external_fdr_size;
4644 ++ifile;
4645 }
4646 }
4647
4648 return offset + ifile * external_fdr_size;
4649}
4650
4651/* Set up the external symbols. These are supposed to be handled by
4652 the backend. This routine just gets the right information and
4653 calls a backend function to deal with it. */
4654
4655static void
4656ecoff_setup_ext ()
4657{
4658 register symbolS *sym;
4659
4660 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4661 {
4662 if (sym->ecoff_symbol == NULL)
4663 continue;
4664
4665 /* If this is a local symbol, then force the fields to zero. */
4666 if (! S_IS_EXTERNAL (sym)
4667 && ! S_IS_WEAK (sym)
4668 && S_IS_DEFINED (sym))
4669 {
4670 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4671 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4672 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4673 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4674 }
4675
4676 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
4677 }
4678}
4679
4680/* Build the ECOFF debugging information. */
4681
4682unsigned long
4683ecoff_build_debug (hdr, bufp, backend)
4684 HDRR *hdr;
4685 char **bufp;
4686 const struct ecoff_debug_swap *backend;
4687{
4688 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4689 tag_t *ptag;
4690 tag_t *ptag_next;
4691 efdr_t *fil_ptr;
4692 int end_warning;
4693 efdr_t *hold_file_ptr;
4694 proc_t * hold_proc_ptr;
4695 symbolS *sym;
4696 char *buf;
4697 char *bufend;
4698 unsigned long offset;
4699
4700 /* Make sure we have a file. */
4701 if (first_file == (efdr_t *) NULL)
4702 add_file ((const char *) NULL, 0, 1);
4703
4704 /* Handle any top level tags. */
4705 for (ptag = top_tag_head->first_tag;
4706 ptag != (tag_t *) NULL;
4707 ptag = ptag_next)
4708 {
4709 if (ptag->forward_ref != (forward_t *) NULL)
4710 add_unknown_tag (ptag);
4711
4712 ptag_next = ptag->same_block;
4713 ptag->hash_ptr->tag_ptr = ptag->same_name;
4714 free_tag (ptag);
4715 }
4716
4717 free_thead (top_tag_head);
4718
4719 /* Look through the symbols. Add debugging information for each
4720 symbol that has not already received it. */
4721 hold_file_ptr = cur_file_ptr;
4722 hold_proc_ptr = cur_proc_ptr;
4723 cur_proc_ptr = (proc_t *) NULL;
4724 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4725 {
4726 if (sym->ecoff_symbol != NULL
4727 || sym->ecoff_file == (efdr_t *) NULL
4728 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4729 continue;
4730
4731 cur_file_ptr = sym->ecoff_file;
4732 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4733 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
4734 }
4735 cur_proc_ptr = hold_proc_ptr;
4736 cur_file_ptr = hold_file_ptr;
4737
4738 /* Output an ending symbol for all the files. We have to do this
4739 here for the last file, so we may as well do it for all of the
4740 files. */
4741 end_warning = 0;
4742 for (fil_ptr = first_file;
4743 fil_ptr != (efdr_t *) NULL;
4744 fil_ptr = fil_ptr->next_file)
4745 {
4746 cur_file_ptr = fil_ptr;
4747 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4748 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4749 {
4750 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4751 if (! end_warning && ! cur_file_ptr->fake)
4752 {
4753 as_warn (_("Missing .end or .bend at end of file"));
4754 end_warning = 1;
4755 }
4756 }
4757 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4758 (void) add_ecoff_symbol ((const char *) NULL,
4759 st_End, sc_Text,
4760 (symbolS *) NULL,
4761 (bfd_vma) 0,
4762 (symint_t) 0,
4763 (symint_t) 0);
4764 }
4765
4766 /* Build the symbolic information. */
4767 offset = 0;
4768 buf = xmalloc (PAGE_SIZE);
4769 bufend = buf + PAGE_SIZE;
4770
4771 /* Build the line number information. */
4772 hdr->cbLineOffset = offset;
4773 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4774 &hdr->ilineMax);
4775 hdr->cbLine = offset - hdr->cbLineOffset;
4776
4777 /* We don't use dense numbers at all. */
4778 hdr->idnMax = 0;
4779 hdr->cbDnOffset = 0;
4780
4781 /* We can't build the PDR table until we have built the symbols,
4782 because a PDR contains a symbol index. However, we set aside
4783 space at this point. */
4784 hdr->ipdMax = proc_cnt;
4785 hdr->cbPdOffset = offset;
4786 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4787 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4788 proc_cnt * external_pdr_size);
4789 offset += proc_cnt * external_pdr_size;
4790
4791 /* Build the local symbols. */
4792 hdr->cbSymOffset = offset;
4793 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4794 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4795
4796 /* Building the symbols initializes the symbol index in the PDR's.
4797 Now we can swap out the PDR's. */
4798 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4799
4800 /* We don't use optimization symbols. */
4801 hdr->ioptMax = 0;
4802 hdr->cbOptOffset = 0;
4803
4804 /* Swap out the auxiliary type information. */
4805 hdr->cbAuxOffset = offset;
4806 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4807 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4808
4809 /* Copy out the local strings. */
4810 hdr->cbSsOffset = offset;
4811 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4812 hdr->issMax = offset - hdr->cbSsOffset;
4813
4814 /* We don't use relative file descriptors. */
4815 hdr->crfd = 0;
4816 hdr->cbRfdOffset = 0;
4817
4818 /* Swap out the file descriptors. */
4819 hdr->cbFdOffset = offset;
4820 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4821 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4822
4823 /* Set up the external symbols, which are handled by the BFD back
4824 end. */
4825 hdr->issExtMax = 0;
4826 hdr->cbSsExtOffset = 0;
4827 hdr->iextMax = 0;
4828 hdr->cbExtOffset = 0;
4829 ecoff_setup_ext ();
4830
4831 know ((offset & (backend->debug_align - 1)) == 0);
4832
4833 /* FIXME: This value should be determined from the .verstamp directive,
4834 with reasonable defaults in config files. */
4835#ifdef TC_ALPHA
4836 hdr->vstamp = 0x030b;
4837#else
4838 hdr->vstamp = 0x020b;
4839#endif
4840
4841 *bufp = buf;
4842 return offset;
4843}
4844\f
4845/* Allocate a cluster of pages. */
4846
4847#ifndef MALLOC_CHECK
4848
4849static page_type *
4850allocate_cluster (npages)
4851 unsigned long npages;
4852{
4853 register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
4854
4855#ifdef ECOFF_DEBUG
4856 if (debug > 3)
4857 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4858#endif
4859
4860 memset (value, 0, npages * PAGE_USIZE);
4861
4862 return value;
4863}
4864
4865
4866static page_type *cluster_ptr = NULL;
4867static unsigned long pages_left = 0;
4868
4869#endif /* MALLOC_CHECK */
4870
4871/* Allocate one page (which is initialized to 0). */
4872
4873static page_type *
4874allocate_page ()
4875{
4876#ifndef MALLOC_CHECK
4877
4878 if (pages_left == 0)
4879 {
4880 pages_left = MAX_CLUSTER_PAGES;
4881 cluster_ptr = allocate_cluster (pages_left);
4882 }
4883
4884 pages_left--;
4885 return cluster_ptr++;
4886
4887#else /* MALLOC_CHECK */
4888
4889 page_type *ptr;
4890
4891 ptr = xmalloc (PAGE_USIZE);
4892 memset (ptr, 0, PAGE_USIZE);
4893 return ptr;
4894
4895#endif /* MALLOC_CHECK */
4896}
4897\f
4898/* Allocate scoping information. */
4899
4900static scope_t *
4901allocate_scope ()
4902{
4903 register scope_t *ptr;
4904 static scope_t initial_scope;
4905
4906#ifndef MALLOC_CHECK
4907
4908 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4909 if (ptr != (scope_t *) NULL)
4910 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4911 else
4912 {
4913 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4914 register page_type *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4915
4916 if (unallocated == 0)
4917 {
4918 unallocated = PAGE_SIZE / sizeof (scope_t);
4919 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4920 alloc_counts[(int)alloc_type_scope].total_pages++;
4921 }
4922
4923 ptr = &cur_page->scope[--unallocated];
4924 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4925 }
4926
4927#else
4928
4929 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4930
4931#endif
4932
4933 alloc_counts[(int)alloc_type_scope].total_alloc++;
4934 *ptr = initial_scope;
4935 return ptr;
4936}
4937
4938/* Free scoping information. */
4939
4940static void
4941free_scope (ptr)
4942 scope_t *ptr;
4943{
4944 alloc_counts[(int)alloc_type_scope].total_free++;
4945
4946#ifndef MALLOC_CHECK
4947 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4948 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4949#else
4950 free ((PTR) ptr);
4951#endif
4952}
4953\f
4954/* Allocate links for pages in a virtual array. */
4955
4956static vlinks_t *
4957allocate_vlinks ()
4958{
4959 register vlinks_t *ptr;
4960 static vlinks_t initial_vlinks;
4961
4962#ifndef MALLOC_CHECK
4963
4964 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4965 register page_type *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4966
4967 if (unallocated == 0)
4968 {
4969 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4970 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4971 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4972 }
4973
4974 ptr = &cur_page->vlinks[--unallocated];
4975 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4976
4977#else
4978
4979 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4980
4981#endif
4982
4983 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4984 *ptr = initial_vlinks;
4985 return ptr;
4986}
4987\f
4988/* Allocate string hash buckets. */
4989
4990static shash_t *
4991allocate_shash ()
4992{
4993 register shash_t *ptr;
4994 static shash_t initial_shash;
4995
4996#ifndef MALLOC_CHECK
4997
4998 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4999 register page_type *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
5000
5001 if (unallocated == 0)
5002 {
5003 unallocated = PAGE_SIZE / sizeof (shash_t);
5004 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
5005 alloc_counts[(int)alloc_type_shash].total_pages++;
5006 }
5007
5008 ptr = &cur_page->shash[--unallocated];
5009 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
5010
5011#else
5012
5013 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5014
5015#endif
5016
5017 alloc_counts[(int)alloc_type_shash].total_alloc++;
5018 *ptr = initial_shash;
5019 return ptr;
5020}
5021\f
5022/* Allocate type hash buckets. */
5023
5024static thash_t *
5025allocate_thash ()
5026{
5027 register thash_t *ptr;
5028 static thash_t initial_thash;
5029
5030#ifndef MALLOC_CHECK
5031
5032 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
5033 register page_type *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
5034
5035 if (unallocated == 0)
5036 {
5037 unallocated = PAGE_SIZE / sizeof (thash_t);
5038 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
5039 alloc_counts[(int)alloc_type_thash].total_pages++;
5040 }
5041
5042 ptr = &cur_page->thash[--unallocated];
5043 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
5044
5045#else
5046
5047 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5048
5049#endif
5050
5051 alloc_counts[(int)alloc_type_thash].total_alloc++;
5052 *ptr = initial_thash;
5053 return ptr;
5054}
5055\f
5056/* Allocate structure, union, or enum tag information. */
5057
5058static tag_t *
5059allocate_tag ()
5060{
5061 register tag_t *ptr;
5062 static tag_t initial_tag;
5063
5064#ifndef MALLOC_CHECK
5065
5066 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5067 if (ptr != (tag_t *) NULL)
5068 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
5069 else
5070 {
5071 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
5072 register page_type *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
5073
5074 if (unallocated == 0)
5075 {
5076 unallocated = PAGE_SIZE / sizeof (tag_t);
5077 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
5078 alloc_counts[(int)alloc_type_tag].total_pages++;
5079 }
5080
5081 ptr = &cur_page->tag[--unallocated];
5082 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
5083 }
5084
5085#else
5086
5087 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5088
5089#endif
5090
5091 alloc_counts[(int)alloc_type_tag].total_alloc++;
5092 *ptr = initial_tag;
5093 return ptr;
5094}
5095
5096/* Free scoping information. */
5097
5098static void
5099free_tag (ptr)
5100 tag_t *ptr;
5101{
5102 alloc_counts[(int)alloc_type_tag].total_free++;
5103
5104#ifndef MALLOC_CHECK
5105 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5106 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
5107#else
5108 free ((PTR_T) ptr);
5109#endif
5110}
5111\f
5112/* Allocate forward reference to a yet unknown tag. */
5113
5114static forward_t *
5115allocate_forward ()
5116{
5117 register forward_t *ptr;
5118 static forward_t initial_forward;
5119
5120#ifndef MALLOC_CHECK
5121
5122 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
5123 register page_type *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
5124
5125 if (unallocated == 0)
5126 {
5127 unallocated = PAGE_SIZE / sizeof (forward_t);
5128 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
5129 alloc_counts[(int)alloc_type_forward].total_pages++;
5130 }
5131
5132 ptr = &cur_page->forward[--unallocated];
5133 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
5134
5135#else
5136
5137 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5138
5139#endif
5140
5141 alloc_counts[(int)alloc_type_forward].total_alloc++;
5142 *ptr = initial_forward;
5143 return ptr;
5144}
5145\f
5146/* Allocate head of type hash list. */
5147
5148static thead_t *
5149allocate_thead ()
5150{
5151 register thead_t *ptr;
5152 static thead_t initial_thead;
5153
5154#ifndef MALLOC_CHECK
5155
5156 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5157 if (ptr != (thead_t *) NULL)
5158 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5159 else
5160 {
5161 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
5162 register page_type *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
5163
5164 if (unallocated == 0)
5165 {
5166 unallocated = PAGE_SIZE / sizeof (thead_t);
5167 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
5168 alloc_counts[(int)alloc_type_thead].total_pages++;
5169 }
5170
5171 ptr = &cur_page->thead[--unallocated];
5172 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
5173 }
5174
5175#else
5176
5177 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5178
5179#endif
5180
5181 alloc_counts[(int)alloc_type_thead].total_alloc++;
5182 *ptr = initial_thead;
5183 return ptr;
5184}
5185
5186/* Free scoping information. */
5187
5188static void
5189free_thead (ptr)
5190 thead_t *ptr;
5191{
5192 alloc_counts[(int)alloc_type_thead].total_free++;
5193
5194#ifndef MALLOC_CHECK
5195 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5196 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5197#else
5198 free ((PTR_T) ptr);
5199#endif
5200}
5201\f
5202static lineno_list_t *
5203allocate_lineno_list ()
5204{
5205 register lineno_list_t *ptr;
5206 static lineno_list_t initial_lineno_list;
5207
5208#ifndef MALLOC_CHECK
5209
5210 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
5211 register page_type *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
5212
5213 if (unallocated == 0)
5214 {
5215 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5216 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5217 alloc_counts[(int)alloc_type_lineno].total_pages++;
5218 }
5219
5220 ptr = &cur_page->lineno[--unallocated];
5221 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5222
5223#else
5224
5225 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5226
5227#endif
5228
5229 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5230 *ptr = initial_lineno_list;
5231 return ptr;
5232}
5233
5234void
5235ecoff_set_gp_prolog_size (sz)
5236 int sz;
5237{
5238 if (cur_proc_ptr == 0)
5239 return;
5240
5241 cur_proc_ptr->pdr.gp_prologue = sz;
5242 if (cur_proc_ptr->pdr.gp_prologue != sz)
5243 {
5244 as_warn (_("GP prologue size exceeds field size, using 0 instead"));
5245 cur_proc_ptr->pdr.gp_prologue = 0;
5246 }
5247
5248 cur_proc_ptr->pdr.gp_used = 1;
5249}
5250
5251int
5252ecoff_no_current_file ()
5253{
5254 return cur_file_ptr == (efdr_t *) NULL;
5255}
5256
5257void
5258ecoff_generate_asm_lineno ()
5259{
5260 unsigned int lineno;
5261 char *filename;
5262 lineno_list_t *list;
5263
5264 as_where (&filename, &lineno);
5265
5266 if (current_stabs_filename == (char *)NULL
5267 || strcmp (current_stabs_filename, filename))
5268 add_file (filename, 0, 1);
5269
5270 list = allocate_lineno_list ();
5271
5272 list->next = (lineno_list_t *) NULL;
5273 list->file = cur_file_ptr;
5274 list->proc = cur_proc_ptr;
5275 list->frag = frag_now;
5276 list->paddr = frag_now_fix ();
5277 list->lineno = lineno;
5278
5279 /* We don't want to merge files which have line numbers. */
5280 cur_file_ptr->fdr.fMerge = 0;
5281
5282 /* A .loc directive will sometimes appear before a .ent directive,
5283 which means that cur_proc_ptr will be NULL here. Arrange to
5284 patch this up. */
5285 if (cur_proc_ptr == (proc_t *) NULL)
5286 {
5287 lineno_list_t **pl;
5288
5289 pl = &noproc_lineno;
5290 while (*pl != (lineno_list_t *) NULL)
5291 pl = &(*pl)->next;
5292 *pl = list;
5293 }
5294 else
5295 {
5296 last_lineno = list;
5297 *last_lineno_ptr = list;
5298 last_lineno_ptr = &list->next;
5299 }
5300}
5301
5302#else
5303
5304void
5305ecoff_generate_asm_lineno ()
5306{
5307}
5308
5309#endif /* ECOFF_DEBUGGING */
GDB Binutils - Deliverables
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