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Added support for v850e and v850eq instructions.
[deliverable/binutils-gdb.git] / gas / ecoff.c
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9faec336 1/* ECOFF debugging support.
8e3ff081 2 Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
9faec336
ILT		 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
8e3ff081
ILT		 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. */
9faec336
ILT		 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
012353f7 124 btNil -- undefined
9faec336 125 btAdr -- address - integer same size as ptr
012353f7
KR		 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
9faec336
ILT		 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
012353f7
KR		 156 tqNil -- no more qualifiers
157 tqPtr -- pointer
158 tqProc -- procedure
159 tqArray -- array
160 tqFar -- 8086 far pointers
161 tqVol -- volatile
9faec336
ILT		 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:
012353f7 270
9faec336
ILT		 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
012353f7 279
9faec336 280 Symbolic header, magic number = 0x7009, vstamp = 1.31:
012353f7 281
9faec336
ILT		 282 Info Offset Number Bytes
283 ==== ====== ====== =====
012353f7 284
9faec336
ILT		 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
012353f7 296
9faec336 297 File #0, "hello2.c"
012353f7 298
9faec336
ILT		 299 Name index = 1 Readin = No
300 Merge = No Endian = LITTLE
301 Debug level = G2 Language = C
302 Adr = 0x00000000
012353f7 303
9faec336
ILT		 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
012353f7 313
9faec336
ILT		 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#ifndef PAGE_SIZE
772#define PAGE_SIZE 4096 /* size of varray pages */
773#endif
774
775#define PAGE_USIZE ((unsigned long) PAGE_SIZE)
776
777
778#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
779#define MAX_CLUSTER_PAGES 63
780#endif
781
9faec336
ILT		 782/* Linked list connecting separate page allocations. */
783typedef struct vlinks {
784 struct vlinks *prev; /* previous set of pages */
785 struct vlinks *next; /* next set of pages */
786 union page *datum; /* start of page */
787 unsigned long start_index; /* starting index # of page */
788} vlinks_t;
789
790
791/* Virtual array header. */
792typedef struct varray {
793 vlinks_t *first; /* first page link */
794 vlinks_t *last; /* last page link */
795 unsigned long num_allocated; /* # objects allocated */
796 unsigned short object_size; /* size in bytes of each object */
797 unsigned short objects_per_page; /* # objects that can fit on a page */
798 unsigned short objects_last_page; /* # objects allocated on last page */
799} varray_t;
800
801#ifndef MALLOC_CHECK
802#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
803#else
804#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
805#endif
806
807#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
808 (vlinks_t *)0, /* first */ \
809 (vlinks_t *)0, /* last */ \
810 0, /* num_allocated */ \
811 sizeof (type), /* object_size */ \
812 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
813 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
814}
815
816
817/* Master type for indexes within the symbol table. */
818typedef unsigned long symint_t;
819
820
821/* Linked list support for nested scopes (file, block, structure, etc.). */
822typedef struct scope {
823 struct scope *prev; /* previous scope level */
824 struct scope *free; /* free list pointer */
825 struct localsym *lsym; /* pointer to local symbol node */
826 st_t type; /* type of the node */
827} scope_t;
828
829
830/* For a local symbol we store a gas symbol as well as the debugging
831 information we generate. The gas symbol will be NULL if this is
832 only a debugging symbol. */
833typedef struct localsym {
834 const char *name; /* symbol name */
835 symbolS *as_sym; /* symbol as seen by gas */
8e3ff081 836 bfd_vma addend; /* addend to as_sym value */
9faec336
ILT		 837 struct efdr *file_ptr; /* file pointer */
838 struct ecoff_proc *proc_ptr; /* proc pointer */
839 struct localsym *begin_ptr; /* symbol at start of block */
840 struct ecoff_aux *index_ptr; /* index value to be filled in */
841 struct forward *forward_ref; /* forward references to this symbol */
842 long sym_index; /* final symbol index */
843 EXTR ecoff_sym; /* ECOFF debugging symbol */
844} localsym_t;
845
846
847/* For aux information we keep the type and the data. */
848typedef struct ecoff_aux {
849 enum aux_type type; /* aux type */
850 AUXU data; /* aux data */
851} aux_t;
852
853/* For a procedure we store the gas symbol as well as the PDR
854 debugging information. */
855typedef struct ecoff_proc {
856 localsym_t *sym; /* associated symbol */
857 PDR pdr; /* ECOFF debugging info */
858} proc_t;
859
860/* Number of proc_t structures allocated. */
861static unsigned long proc_cnt;
862
863
864/* Forward reference list for tags referenced, but not yet defined. */
865typedef struct forward {
866 struct forward *next; /* next forward reference */
867 struct forward *free; /* free list pointer */
868 aux_t *ifd_ptr; /* pointer to store file index */
869 aux_t *index_ptr; /* pointer to store symbol index */
870} forward_t;
871
872
873/* Linked list support for tags. The first tag in the list is always
874 the current tag for that block. */
875typedef struct tag {
876 struct tag *free; /* free list pointer */
877 struct shash *hash_ptr; /* pointer to the hash table head */
878 struct tag *same_name; /* tag with same name in outer scope */
879 struct tag *same_block; /* next tag defined in the same block. */
880 struct forward *forward_ref; /* list of forward references */
881 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
882 symint_t ifd; /* file # tag defined in */
883 localsym_t *sym; /* file's local symbols */
884} tag_t;
885
886
887/* Head of a block's linked list of tags. */
888typedef struct thead {
889 struct thead *prev; /* previous block */
890 struct thead *free; /* free list pointer */
891 struct tag *first_tag; /* first tag in block defined */
892} thead_t;
893
894
895/* Union containing pointers to each the small structures which are freed up. */
896typedef union small_free {
897 scope_t *f_scope; /* scope structure */
898 thead_t *f_thead; /* tag head structure */
899 tag_t *f_tag; /* tag element structure */
900 forward_t *f_forward; /* forward tag reference */
901} small_free_t;
902
903
904/* String hash table entry. */
905
906typedef struct shash {
907 char *string; /* string we are hashing */
908 symint_t indx; /* index within string table */
909 EXTR *esym_ptr; /* global symbol pointer */
910 localsym_t *sym_ptr; /* local symbol pointer */
911 localsym_t *end_ptr; /* symbol pointer to end block */
912 tag_t *tag_ptr; /* tag pointer */
913 proc_t *proc_ptr; /* procedure descriptor pointer */
914} shash_t;
915
916
917/* Type hash table support. The size of the hash table must fit
918 within a page with the other extended file descriptor information.
919 Because unique types which are hashed are fewer in number than
920 strings, we use a smaller hash value. */
921
922#define HASHBITS 30
923
924#ifndef THASH_SIZE
925#define THASH_SIZE 113
926#endif
927
928typedef struct thash {
929 struct thash *next; /* next hash value */
930 AUXU type; /* type we are hashing */
931 symint_t indx; /* index within string table */
932} thash_t;
933
934
935/* Extended file descriptor that contains all of the support necessary
936 to add things to each file separately. */
937typedef struct efdr {
938 FDR fdr; /* File header to be written out */
939 FDR *orig_fdr; /* original file header */
940 char *name; /* filename */
d7b2038f 941 int fake; /* whether this is faked .file */
9faec336
ILT		 942 symint_t void_type; /* aux. pointer to 'void' type */
943 symint_t int_type; /* aux. pointer to 'int' type */
944 scope_t *cur_scope; /* current nested scopes */
945 symint_t file_index; /* current file number */
946 int nested_scopes; /* # nested scopes */
947 varray_t strings; /* local strings */
948 varray_t symbols; /* local symbols */
949 varray_t procs; /* procedures */
950 varray_t aux_syms; /* auxiliary symbols */
951 struct efdr *next_file; /* next file descriptor */
952 /* string/type hash tables */
953 struct hash_control *str_hash; /* string hash table */
954 thash_t *thash_head[THASH_SIZE];
955} efdr_t;
956
957/* Pre-initialized extended file structure. */
012353f7 958static const efdr_t init_file =
9faec336
ILT		 959{
960 { /* FDR structure */
961 0, /* adr: memory address of beginning of file */
962 0, /* rss: file name (of source, if known) */
963 0, /* issBase: file's string space */
964 0, /* cbSs: number of bytes in the ss */
965 0, /* isymBase: beginning of symbols */
966 0, /* csym: count file's of symbols */
967 0, /* ilineBase: file's line symbols */
968 0, /* cline: count of file's line symbols */
969 0, /* ioptBase: file's optimization entries */
970 0, /* copt: count of file's optimization entries */
971 0, /* ipdFirst: start of procedures for this file */
972 0, /* cpd: count of procedures for this file */
973 0, /* iauxBase: file's auxiliary entries */
974 0, /* caux: count of file's auxiliary entries */
975 0, /* rfdBase: index into the file indirect table */
976 0, /* crfd: count file indirect entries */
977 langC, /* lang: language for this file */
cfc71c6d 978 1, /* fMerge: whether this file can be merged */
9faec336 979 0, /* fReadin: true if read in (not just created) */
db3152ef 980 TARGET_BYTES_BIG_ENDIAN, /* fBigendian: if 1, compiled on big endian machine */
9faec336
ILT		 981 GLEVEL_2, /* glevel: level this file was compiled with */
982 0, /* reserved: reserved for future use */
983 0, /* cbLineOffset: byte offset from header for this file ln's */
984 0, /* cbLine: size of lines for this file */
985 },
986
987 (FDR *)0, /* orig_fdr: original file header pointer */
988 (char *)0, /* name: pointer to filename */
d7b2038f 989 0, /* fake: whether this is a faked .file */
9faec336
ILT		 990 0, /* void_type: ptr to aux node for void type */
991 0, /* int_type: ptr to aux node for int type */
992 (scope_t *)0, /* cur_scope: current scope being processed */
993 0, /* file_index: current file # */
994 0, /* nested_scopes: # nested scopes */
995 INIT_VARRAY (char), /* strings: local string varray */
996 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
997 INIT_VARRAY (proc_t), /* procs: procedure varray */
998 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
999
1000 (struct efdr *)0, /* next_file: next file structure */
1001
1002 (struct hash_control *)0, /* str_hash: string hash table */
1003 { 0 }, /* thash_head: type hash table */
1004};
1005
1006
1007static efdr_t *first_file; /* first file descriptor */
1008static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1009
1010
1011/* Line number information is kept in a list until the assembly is
1012 finished. */
1013typedef struct lineno_list {
1014 struct lineno_list *next; /* next element in list */
1015 efdr_t *file; /* file this line is in */
1016 proc_t *proc; /* procedure this line is in */
1017 fragS *frag; /* fragment this line number is in */
1018 unsigned long paddr; /* offset within fragment */
1019 long lineno; /* actual line number */
1020} lineno_list_t;
1021
1022static lineno_list_t *first_lineno;
cfc71c6d 1023static lineno_list_t *last_lineno;
9faec336
ILT		 1024static lineno_list_t **last_lineno_ptr = &first_lineno;
1025
1026/* Sometimes there will be some .loc statements before a .ent. We
1027 keep them in this list so that we can fill in the procedure pointer
1028 after we see the .ent. */
1029static lineno_list_t *noproc_lineno;
1030
1031/* Union of various things that are held in pages. */
1032typedef union page {
1033 char byte [ PAGE_SIZE ];
1034 unsigned char ubyte [ PAGE_SIZE ];
1035 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1036 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1037 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1038 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1039 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1040 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1041 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1042 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1043 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1044 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1045 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1046 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1047 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1048 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
db3152ef 1049} page_type;
9faec336
ILT		 1050
1051
1052/* Structure holding allocation information for small sized structures. */
1053typedef struct alloc_info {
1054 char *alloc_name; /* name of this allocation type (must be first) */
db3152ef 1055 page_type *cur_page; /* current page being allocated from */
9faec336
ILT		 1056 small_free_t free_list; /* current free list if any */
1057 int unallocated; /* number of elements unallocated on page */
1058 int total_alloc; /* total number of allocations */
1059 int total_free; /* total number of frees */
1060 int total_pages; /* total number of pages allocated */
1061} alloc_info_t;
1062
1063
1064/* Type information collected together. */
1065typedef struct type_info {
1066 bt_t basic_type; /* basic type */
1067 int orig_type; /* original COFF-based type */
1068 int num_tq; /* # type qualifiers */
1069 int num_dims; /* # dimensions */
1070 int num_sizes; /* # sizes */
1071 int extra_sizes; /* # extra sizes not tied with dims */
1072 tag_t * tag_ptr; /* tag pointer */
1073 int bitfield; /* symbol is a bitfield */
1074 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1075 symint_t dimensions [N_TQ]; /* dimensions for each array */
1076 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1077 struct/union/enum + bitfield size */
1078} type_info_t;
1079
1080/* Pre-initialized type_info struct. */
1081static const type_info_t type_info_init = {
1082 bt_Nil, /* basic type */
1083 T_NULL, /* original COFF-based type */
1084 0, /* # type qualifiers */
1085 0, /* # dimensions */
1086 0, /* # sizes */
1087 0, /* sizes not tied with dims */
1088 NULL, /* ptr to tag */
1089 0, /* bitfield */
1090 { /* type qualifiers */
1091 tq_Nil,
1092 tq_Nil,
1093 tq_Nil,
1094 tq_Nil,
1095 tq_Nil,
1096 tq_Nil,
1097 },
1098 { /* dimensions */
1099 0,
1100 0,
1101 0,
1102 0,
1103 0,
1104 0
1105 },
1106 { /* sizes */
1107 0,
1108 0,
1109 0,
1110 0,
1111 0,
1112 0,
1113 0,
1114 0,
1115 },
1116};
1117
1118/* Global hash table for the tags table and global table for file
1119 descriptors. */
1120
1121static varray_t file_desc = INIT_VARRAY (efdr_t);
1122
1123static struct hash_control *tag_hash;
1124
1125/* Static types for int and void. Also, remember the last function's
1126 type (which is set up when we encounter the declaration for the
1127 function, and used when the end block for the function is emitted. */
1128
1129static type_info_t int_type_info;
1130static type_info_t void_type_info;
1131static type_info_t last_func_type_info;
1132static symbolS *last_func_sym_value;
1133
1134
1135/* Convert COFF basic type to ECOFF basic type. The T_NULL type
1136 really should use bt_Void, but this causes the current ecoff GDB to
1137 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1138 2.0) doesn't understand it, even though the compiler generates it.
1139 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1140 suite, but for now go with what works.
1141
1142 It would make sense for the .type and .scl directives to use the
1143 ECOFF numbers directly, rather than using the COFF numbers and
1144 mapping them. Unfortunately, this is historically what mips-tfile
1145 expects, and changing gcc now would be a considerable pain (the
1146 native compiler generates debugging information internally, rather
1147 than via the assembler, so it will never use .type or .scl). */
1148
1149static const bt_t map_coff_types[] = {
1150 bt_Nil, /* T_NULL */
1151 bt_Nil, /* T_ARG */
1152 bt_Char, /* T_CHAR */
1153 bt_Short, /* T_SHORT */
1154 bt_Int, /* T_INT */
1155 bt_Long, /* T_LONG */
1156 bt_Float, /* T_FLOAT */
1157 bt_Double, /* T_DOUBLE */
1158 bt_Struct, /* T_STRUCT */
1159 bt_Union, /* T_UNION */
1160 bt_Enum, /* T_ENUM */
1161 bt_Enum, /* T_MOE */
1162 bt_UChar, /* T_UCHAR */
1163 bt_UShort, /* T_USHORT */
1164 bt_UInt, /* T_UINT */
1165 bt_ULong /* T_ULONG */
1166};
1167
1168/* Convert COFF storage class to ECOFF storage class. */
1169static const sc_t map_coff_storage[] = {
1170 sc_Nil, /* 0: C_NULL */
1171 sc_Abs, /* 1: C_AUTO auto var */
1172 sc_Undefined, /* 2: C_EXT external */
1173 sc_Data, /* 3: C_STAT static */
1174 sc_Register, /* 4: C_REG register */
1175 sc_Undefined, /* 5: C_EXTDEF ??? */
1176 sc_Text, /* 6: C_LABEL label */
1177 sc_Text, /* 7: C_ULABEL user label */
1178 sc_Info, /* 8: C_MOS member of struct */
1179 sc_Abs, /* 9: C_ARG argument */
1180 sc_Info, /* 10: C_STRTAG struct tag */
1181 sc_Info, /* 11: C_MOU member of union */
1182 sc_Info, /* 12: C_UNTAG union tag */
1183 sc_Info, /* 13: C_TPDEF typedef */
1184 sc_Data, /* 14: C_USTATIC ??? */
1185 sc_Info, /* 15: C_ENTAG enum tag */
1186 sc_Info, /* 16: C_MOE member of enum */
1187 sc_Register, /* 17: C_REGPARM register parameter */
1188 sc_Bits, /* 18; C_FIELD bitfield */
1189 sc_Nil, /* 19 */
1190 sc_Nil, /* 20 */
1191 sc_Nil, /* 21 */
1192 sc_Nil, /* 22 */
1193 sc_Nil, /* 23 */
1194 sc_Nil, /* 24 */
1195 sc_Nil, /* 25 */
1196 sc_Nil, /* 26 */
1197 sc_Nil, /* 27 */
1198 sc_Nil, /* 28 */
1199 sc_Nil, /* 29 */
1200 sc_Nil, /* 30 */
1201 sc_Nil, /* 31 */
1202 sc_Nil, /* 32 */
1203 sc_Nil, /* 33 */
1204 sc_Nil, /* 34 */
1205 sc_Nil, /* 35 */
1206 sc_Nil, /* 36 */
1207 sc_Nil, /* 37 */
1208 sc_Nil, /* 38 */
1209 sc_Nil, /* 39 */
1210 sc_Nil, /* 40 */
1211 sc_Nil, /* 41 */
1212 sc_Nil, /* 42 */
1213 sc_Nil, /* 43 */
1214 sc_Nil, /* 44 */
1215 sc_Nil, /* 45 */
1216 sc_Nil, /* 46 */
1217 sc_Nil, /* 47 */
1218 sc_Nil, /* 48 */
1219 sc_Nil, /* 49 */
1220 sc_Nil, /* 50 */
1221 sc_Nil, /* 51 */
1222 sc_Nil, /* 52 */
1223 sc_Nil, /* 53 */
1224 sc_Nil, /* 54 */
1225 sc_Nil, /* 55 */
1226 sc_Nil, /* 56 */
1227 sc_Nil, /* 57 */
1228 sc_Nil, /* 58 */
1229 sc_Nil, /* 59 */
1230 sc_Nil, /* 60 */
1231 sc_Nil, /* 61 */
1232 sc_Nil, /* 62 */
1233 sc_Nil, /* 63 */
1234 sc_Nil, /* 64 */
1235 sc_Nil, /* 65 */
1236 sc_Nil, /* 66 */
1237 sc_Nil, /* 67 */
1238 sc_Nil, /* 68 */
1239 sc_Nil, /* 69 */
1240 sc_Nil, /* 70 */
1241 sc_Nil, /* 71 */
1242 sc_Nil, /* 72 */
1243 sc_Nil, /* 73 */
1244 sc_Nil, /* 74 */
1245 sc_Nil, /* 75 */
1246 sc_Nil, /* 76 */
1247 sc_Nil, /* 77 */
1248 sc_Nil, /* 78 */
1249 sc_Nil, /* 79 */
1250 sc_Nil, /* 80 */
1251 sc_Nil, /* 81 */
1252 sc_Nil, /* 82 */
1253 sc_Nil, /* 83 */
1254 sc_Nil, /* 84 */
1255 sc_Nil, /* 85 */
1256 sc_Nil, /* 86 */
1257 sc_Nil, /* 87 */
1258 sc_Nil, /* 88 */
1259 sc_Nil, /* 89 */
1260 sc_Nil, /* 90 */
1261 sc_Nil, /* 91 */
1262 sc_Nil, /* 92 */
1263 sc_Nil, /* 93 */
1264 sc_Nil, /* 94 */
1265 sc_Nil, /* 95 */
1266 sc_Nil, /* 96 */
1267 sc_Nil, /* 97 */
1268 sc_Nil, /* 98 */
1269 sc_Nil, /* 99 */
1270 sc_Text, /* 100: C_BLOCK block start/end */
1271 sc_Text, /* 101: C_FCN function start/end */
1272 sc_Info, /* 102: C_EOS end of struct/union/enum */
1273 sc_Nil, /* 103: C_FILE file start */
1274 sc_Nil, /* 104: C_LINE line number */
1275 sc_Nil, /* 105: C_ALIAS combined type info */
1276 sc_Nil, /* 106: C_HIDDEN ??? */
1277};
1278
1279/* Convert COFF storage class to ECOFF symbol type. */
1280static const st_t map_coff_sym_type[] = {
1281 st_Nil, /* 0: C_NULL */
1282 st_Local, /* 1: C_AUTO auto var */
1283 st_Global, /* 2: C_EXT external */
1284 st_Static, /* 3: C_STAT static */
1285 st_Local, /* 4: C_REG register */
1286 st_Global, /* 5: C_EXTDEF ??? */
1287 st_Label, /* 6: C_LABEL label */
1288 st_Label, /* 7: C_ULABEL user label */
1289 st_Member, /* 8: C_MOS member of struct */
1290 st_Param, /* 9: C_ARG argument */
1291 st_Block, /* 10: C_STRTAG struct tag */
1292 st_Member, /* 11: C_MOU member of union */
1293 st_Block, /* 12: C_UNTAG union tag */
1294 st_Typedef, /* 13: C_TPDEF typedef */
1295 st_Static, /* 14: C_USTATIC ??? */
1296 st_Block, /* 15: C_ENTAG enum tag */
1297 st_Member, /* 16: C_MOE member of enum */
1298 st_Param, /* 17: C_REGPARM register parameter */
1299 st_Member, /* 18; C_FIELD bitfield */
1300 st_Nil, /* 19 */
1301 st_Nil, /* 20 */
1302 st_Nil, /* 21 */
1303 st_Nil, /* 22 */
1304 st_Nil, /* 23 */
1305 st_Nil, /* 24 */
1306 st_Nil, /* 25 */
1307 st_Nil, /* 26 */
1308 st_Nil, /* 27 */
1309 st_Nil, /* 28 */
1310 st_Nil, /* 29 */
1311 st_Nil, /* 30 */
1312 st_Nil, /* 31 */
1313 st_Nil, /* 32 */
1314 st_Nil, /* 33 */
1315 st_Nil, /* 34 */
1316 st_Nil, /* 35 */
1317 st_Nil, /* 36 */
1318 st_Nil, /* 37 */
1319 st_Nil, /* 38 */
1320 st_Nil, /* 39 */
1321 st_Nil, /* 40 */
1322 st_Nil, /* 41 */
1323 st_Nil, /* 42 */
1324 st_Nil, /* 43 */
1325 st_Nil, /* 44 */
1326 st_Nil, /* 45 */
1327 st_Nil, /* 46 */
1328 st_Nil, /* 47 */
1329 st_Nil, /* 48 */
1330 st_Nil, /* 49 */
1331 st_Nil, /* 50 */
1332 st_Nil, /* 51 */
1333 st_Nil, /* 52 */
1334 st_Nil, /* 53 */
1335 st_Nil, /* 54 */
1336 st_Nil, /* 55 */
1337 st_Nil, /* 56 */
1338 st_Nil, /* 57 */
1339 st_Nil, /* 58 */
1340 st_Nil, /* 59 */
1341 st_Nil, /* 60 */
1342 st_Nil, /* 61 */
1343 st_Nil, /* 62 */
1344 st_Nil, /* 63 */
1345 st_Nil, /* 64 */
1346 st_Nil, /* 65 */
1347 st_Nil, /* 66 */
1348 st_Nil, /* 67 */
1349 st_Nil, /* 68 */
1350 st_Nil, /* 69 */
1351 st_Nil, /* 70 */
1352 st_Nil, /* 71 */
1353 st_Nil, /* 72 */
1354 st_Nil, /* 73 */
1355 st_Nil, /* 74 */
1356 st_Nil, /* 75 */
1357 st_Nil, /* 76 */
1358 st_Nil, /* 77 */
1359 st_Nil, /* 78 */
1360 st_Nil, /* 79 */
1361 st_Nil, /* 80 */
1362 st_Nil, /* 81 */
1363 st_Nil, /* 82 */
1364 st_Nil, /* 83 */
1365 st_Nil, /* 84 */
1366 st_Nil, /* 85 */
1367 st_Nil, /* 86 */
1368 st_Nil, /* 87 */
1369 st_Nil, /* 88 */
1370 st_Nil, /* 89 */
1371 st_Nil, /* 90 */
1372 st_Nil, /* 91 */
1373 st_Nil, /* 92 */
1374 st_Nil, /* 93 */
1375 st_Nil, /* 94 */
1376 st_Nil, /* 95 */
1377 st_Nil, /* 96 */
1378 st_Nil, /* 97 */
1379 st_Nil, /* 98 */
1380 st_Nil, /* 99 */
1381 st_Block, /* 100: C_BLOCK block start/end */
1382 st_Proc, /* 101: C_FCN function start/end */
1383 st_End, /* 102: C_EOS end of struct/union/enum */
1384 st_File, /* 103: C_FILE file start */
1385 st_Nil, /* 104: C_LINE line number */
1386 st_Nil, /* 105: C_ALIAS combined type info */
1387 st_Nil, /* 106: C_HIDDEN ??? */
1388};
1389
1390
1391/* Keep track of different sized allocation requests. */
1392static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1393\f
22ba90ce
ILT		 1394/* Record whether we have seen any debugging information. */
1395int ecoff_debugging_seen = 0;
1396
9faec336
ILT		 1397/* Various statics. */
1398static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1399static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
daad3bbf 1400static proc_t *first_proc_ptr = (proc_t *) 0; /* first procedure header */
9faec336
ILT		 1401static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1402static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1403#ifdef ECOFF_DEBUG
1404static int debug = 0; /* trace functions */
1405#endif
1406static int stabs_seen = 0; /* != 0 if stabs have been seen */
1407
012353f7 1408static int current_file_idx;
a2a1a548 1409static const char *current_stabs_filename;
9faec336
ILT		 1410
1411/* Pseudo symbol to use when putting stabs into the symbol table. */
1412#ifndef STABS_SYMBOL
1413#define STABS_SYMBOL "@stabs"
1414#endif
1415
1416static char stabs_symbol[] = STABS_SYMBOL;
1417\f
1418/* Prototypes for functions defined in this file. */
1419
1420static void add_varray_page PARAMS ((varray_t *vp));
1421static symint_t add_string PARAMS ((varray_t *vp,
1422 struct hash_control *hash_tbl,
1423 const char *str,
1424 shash_t **ret_hash));
1425static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1426 sc_t storage, symbolS *sym,
8e3ff081 1427 bfd_vma addend, symint_t value,
9faec336
ILT		 1428 symint_t indx));
1429static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1430static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1431 symint_t sym_index));
1432static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1433 hash_state_t state,
1434 thash_t **hash_tbl));
1435static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1436 bt_t basic_type));
1437static void add_unknown_tag PARAMS ((tag_t *ptag));
1438static void add_procedure PARAMS ((char *func));
d7b2038f 1439static void add_file PARAMS ((const char *file_name, int indx, int fake));
9faec336
ILT		 1440#ifdef ECOFF_DEBUG
1441static char *sc_to_string PARAMS ((sc_t storage_class));
1442static char *st_to_string PARAMS ((st_t symbol_type));
1443#endif
1444static void mark_stabs PARAMS ((int));
1445static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1446 char *bufptr, unsigned long need));
1447static unsigned long ecoff_padding_adjust
1448 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1449 unsigned long offset, char **bufptrptr));
1450static unsigned long ecoff_build_lineno
1451 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1452 unsigned long offset, long *linecntptr));
1453static unsigned long ecoff_build_symbols
1454 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1455 unsigned long offset));
1456static unsigned long ecoff_build_procs
1457 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1458 unsigned long offset));
1459static unsigned long ecoff_build_aux
1460 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1461 unsigned long offset));
1462static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1463 unsigned long offset,
1464 varray_t *vp));
1465static unsigned long ecoff_build_ss
1466 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1467 unsigned long offset));
1468static unsigned long ecoff_build_fdr
1469 PARAMS ((const struct ecoff_debug_swap *backend, char **buf, char **bufend,
1470 unsigned long offset));
012353f7 1471static void ecoff_setup_ext PARAMS ((void));
db3152ef
JL		 1472static page_type *allocate_cluster PARAMS ((unsigned long npages));
1473static page_type *allocate_page PARAMS ((void));
9faec336
ILT		 1474static scope_t *allocate_scope PARAMS ((void));
1475static void free_scope PARAMS ((scope_t *ptr));
1476static vlinks_t *allocate_vlinks PARAMS ((void));
1477static shash_t *allocate_shash PARAMS ((void));
1478static thash_t *allocate_thash PARAMS ((void));
1479static tag_t *allocate_tag PARAMS ((void));
1480static void free_tag PARAMS ((tag_t *ptr));
1481static forward_t *allocate_forward PARAMS ((void));
1482static thead_t *allocate_thead PARAMS ((void));
1483static void free_thead PARAMS ((thead_t *ptr));
1484static lineno_list_t *allocate_lineno_list PARAMS ((void));
daad3bbf 1485static void generate_ecoff_stab PARAMS ((int, const char *, int, int, int));
9faec336
ILT		 1486\f
1487/* This function should be called when the assembler starts up. */
1488
1489void
1490ecoff_read_begin_hook ()
1491{
1492 tag_hash = hash_new ();
1493 top_tag_head = allocate_thead ();
1494 top_tag_head->first_tag = (tag_t *) NULL;
1495 top_tag_head->free = (thead_t *) NULL;
1496 top_tag_head->prev = cur_tag_head;
1497 cur_tag_head = top_tag_head;
1498}
1499
1500/* This function should be called when a symbol is created. */
1501
1502void
1503ecoff_symbol_new_hook (symbolP)
1504 symbolS *symbolP;
1505{
3ffbc907
ILT		 1506 /* Make sure that we have a file pointer, but only if we have seen a
1507 file. If we haven't seen a file, then this is a probably special
1508 symbol created by md_begin which may required special handling at
1509 some point. Creating a dummy file with a dummy name is certainly
1510 wrong. */
1511 if (cur_file_ptr == (efdr_t *) NULL
1512 && seen_at_least_1_file ())
d7b2038f 1513 add_file ((const char *) NULL, 0, 1);
9faec336
ILT		 1514 symbolP->ecoff_file = cur_file_ptr;
1515 symbolP->ecoff_symbol = NULL;
f85ad9d5 1516 symbolP->ecoff_extern_size = 0;
9faec336
ILT		 1517}
1518\f
1519/* Add a page to a varray object. */
1520
1521static void
1522add_varray_page (vp)
1523 varray_t *vp; /* varray to add page to */
1524{
1525 vlinks_t *new_links = allocate_vlinks ();
1526
1527#ifdef MALLOC_CHECK
1528 if (vp->object_size > 1)
db3152ef 1529 new_links->datum = (page_type *) xcalloc (1, vp->object_size);
9faec336
ILT		 1530 else
1531#endif
1532 new_links->datum = allocate_page ();
1533
1534 alloc_counts[(int)alloc_type_varray].total_alloc++;
1535 alloc_counts[(int)alloc_type_varray].total_pages++;
1536
1537 new_links->start_index = vp->num_allocated;
1538 vp->objects_last_page = 0;
1539
1540 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1541 vp->first = vp->last = new_links;
1542 else
1543 { /* 2nd or greater allocation */
1544 new_links->prev = vp->last;
1545 vp->last->next = new_links;
1546 vp->last = new_links;
1547 }
1548}
1549\f
1550/* Add a string (and null pad) to one of the string tables. */
1551
1552static symint_t
1553add_string (vp, hash_tbl, str, ret_hash)
1554 varray_t *vp; /* string obstack */
1555 struct hash_control *hash_tbl; /* ptr to hash table */
1556 const char *str; /* string */
1557 shash_t **ret_hash; /* return hash pointer */
1558{
1559 register unsigned long len = strlen (str);
1560 register shash_t *hash_ptr;
1561
1562 if (len >= PAGE_USIZE)
1563 as_fatal ("String too big (%lu bytes)", len);
1564
1565 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1566 if (hash_ptr == (shash_t *) NULL)
1567 {
1568 register const char *err;
1569
1570 if (vp->objects_last_page + len >= PAGE_USIZE)
1571 {
1572 vp->num_allocated =
1573 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1574 add_varray_page (vp);
1575 }
1576
1577 hash_ptr = allocate_shash ();
1578 hash_ptr->indx = vp->num_allocated;
1579
1580 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1581
1582 vp->objects_last_page += len + 1;
1583 vp->num_allocated += len + 1;
1584
1585 strcpy (hash_ptr->string, str);
1586
1587 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1588 if (err)
1589 as_fatal ("Inserting \"%s\" into string hash table: %s",
1590 str, err);
1591 }
1592
1593 if (ret_hash != (shash_t **) NULL)
1594 *ret_hash = hash_ptr;
1595
1596 return hash_ptr->indx;
1597}
1598\f
1599/* Add debugging information for a symbol. */
1600
1601static localsym_t *
8e3ff081 1602add_ecoff_symbol (str, type, storage, sym_value, addend, value, indx)
9faec336
ILT		 1603 const char *str; /* symbol name */
1604 st_t type; /* symbol type */
1605 sc_t storage; /* storage class */
1606 symbolS *sym_value; /* associated symbol. */
8e3ff081 1607 bfd_vma addend; /* addend to sym_value. */
9faec336
ILT		 1608 symint_t value; /* value of symbol */
1609 symint_t indx; /* index to local/aux. syms */
1610{
1611 localsym_t *psym;
1612 register scope_t *pscope;
1613 register thead_t *ptag_head;
1614 register tag_t *ptag;
1615 register tag_t *ptag_next;
1616 register varray_t *vp;
1617 register int scope_delta = 0;
1618 shash_t *hash_ptr = (shash_t *) NULL;
1619
1620 if (cur_file_ptr == (efdr_t *) NULL)
1621 as_fatal ("no current file pointer");
1622
1623 vp = &cur_file_ptr->symbols;
1624
1625 if (vp->objects_last_page == vp->objects_per_page)
1626 add_varray_page (vp);
1627
1628 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1629
1630 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1631 psym->name = S_GET_NAME (sym_value);
1632 else
1633 psym->name = str;
1634 psym->as_sym = sym_value;
1635 if (sym_value != (symbolS *) NULL)
1636 sym_value->ecoff_symbol = psym;
8e3ff081 1637 psym->addend = addend;
9faec336
ILT		 1638 psym->file_ptr = cur_file_ptr;
1639 psym->proc_ptr = cur_proc_ptr;
1640 psym->begin_ptr = (localsym_t *) NULL;
1641 psym->index_ptr = (aux_t *) NULL;
1642 psym->forward_ref = (forward_t *) NULL;
1643 psym->sym_index = -1;
1644 memset (&psym->ecoff_sym, 0, sizeof (EXTR));
1645 psym->ecoff_sym.asym.value = value;
1646 psym->ecoff_sym.asym.st = (unsigned) type;
1647 psym->ecoff_sym.asym.sc = (unsigned) storage;
1648 psym->ecoff_sym.asym.index = indx;
1649
1650 /* If there is an associated symbol, we wait until the end of the
1651 assembly before deciding where to put the name (it may be just an
1652 external symbol). Otherwise, this is just a debugging symbol and
1653 the name should go with the current file. */
1654 if (sym_value == (symbolS *) NULL)
1655 psym->ecoff_sym.asym.iss = ((str == (const char *) NULL)
1656 ? 0
1657 : add_string (&cur_file_ptr->strings,
1658 cur_file_ptr->str_hash,
1659 str,
1660 &hash_ptr));
1661
1662 ++vp->num_allocated;
1663
1664 if (ECOFF_IS_STAB (&psym->ecoff_sym.asym))
1665 return psym;
1666
1667 /* Save the symbol within the hash table if this is a static
1668 item, and it has a name. */
1669 if (hash_ptr != (shash_t *) NULL
1670 && (type == st_Global || type == st_Static || type == st_Label
1671 || type == st_Proc || type == st_StaticProc))
1672 hash_ptr->sym_ptr = psym;
1673
1674 /* push or pop a scope if appropriate. */
1675 switch (type)
1676 {
1677 default:
1678 break;
1679
1680 case st_File: /* beginning of file */
1681 case st_Proc: /* procedure */
1682 case st_StaticProc: /* static procedure */
1683 case st_Block: /* begin scope */
1684 pscope = allocate_scope ();
1685 pscope->prev = cur_file_ptr->cur_scope;
1686 pscope->lsym = psym;
1687 pscope->type = type;
1688 cur_file_ptr->cur_scope = pscope;
1689
1690 if (type != st_File)
1691 scope_delta = 1;
1692
1693 /* For every block type except file, struct, union, or
1694 enumeration blocks, push a level on the tag stack. We omit
1695 file types, so that tags can span file boundaries. */
1696 if (type != st_File && storage != sc_Info)
1697 {
1698 ptag_head = allocate_thead ();
1699 ptag_head->first_tag = 0;
1700 ptag_head->prev = cur_tag_head;
1701 cur_tag_head = ptag_head;
1702 }
1703 break;
1704
1705 case st_End:
1706 pscope = cur_file_ptr->cur_scope;
1707 if (pscope == (scope_t *) NULL)
1708 as_fatal ("too many st_End's");
1709 else
1710 {
1711 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.asym.st;
1712
1713 psym->begin_ptr = pscope->lsym;
1714
1715 if (begin_type != st_File)
1716 scope_delta = -1;
1717
1718 /* Except for file, structure, union, or enumeration end
1719 blocks remove all tags created within this scope. */
1720 if (begin_type != st_File && storage != sc_Info)
1721 {
1722 ptag_head = cur_tag_head;
1723 cur_tag_head = ptag_head->prev;
1724
1725 for (ptag = ptag_head->first_tag;
1726 ptag != (tag_t *) NULL;
1727 ptag = ptag_next)
1728 {
1729 if (ptag->forward_ref != (forward_t *) NULL)
1730 add_unknown_tag (ptag);
1731
1732 ptag_next = ptag->same_block;
1733 ptag->hash_ptr->tag_ptr = ptag->same_name;
1734 free_tag (ptag);
1735 }
1736
1737 free_thead (ptag_head);
1738 }
1739
1740 cur_file_ptr->cur_scope = pscope->prev;
1741
1742 /* block begin gets next sym #. This is set when we know
1743 the symbol index value. */
1744
1745 /* Functions push two or more aux words as follows:
1746 1st word: index+1 of the end symbol (filled in later).
1747 2nd word: type of the function (plus any aux words needed).
1748 Also, tie the external pointer back to the function begin symbol. */
1749 if (begin_type != st_File && begin_type != st_Block)
1750 {
1751 symint_t ty;
1752 varray_t *svp = &cur_file_ptr->aux_syms;
1753
1754 pscope->lsym->ecoff_sym.asym.index = add_aux_sym_symint (0);
1755 pscope->lsym->index_ptr =
1756 &svp->last->datum->aux[svp->objects_last_page - 1];
1757 ty = add_aux_sym_tir (&last_func_type_info,
1758 hash_no,
1759 &cur_file_ptr->thash_head[0]);
1760
1761/* This seems to be unnecessary. I'm not even sure what it is
1762 * intended to do. It's from mips-tfile.
1763 * if (last_func_sym_value != (symbolS *) NULL)
1764 * {
1765 * last_func_sym_value->ifd = cur_file_ptr->file_index;
1766 * last_func_sym_value->index = ty;
1767 * }
1768 */
1769 }
1770
1771 free_scope (pscope);
1772 }
1773 }
1774
1775 cur_file_ptr->nested_scopes += scope_delta;
1776
1777#ifdef ECOFF_DEBUG
1778 if (debug && type != st_File
1779 && (debug > 2 || type == st_Block || type == st_End
1780 || type == st_Proc || type == st_StaticProc))
1781 {
1782 char *sc_str = sc_to_string (storage);
1783 char *st_str = st_to_string (type);
1784 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1785
1786 fprintf (stderr,
1787 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1788 value, depth, sc_str);
1789
1790 if (str_start && str_end_p1 - str_start > 0)
1791 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1792 else
1793 {
1794 unsigned long len = strlen (st_str);
1795 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1796 }
1797 }
1798#endif
1799
1800 return psym;
1801}
1802\f
1803/* Add an auxiliary symbol (passing a symint). This is actually used
1804 for integral aux types, not just symints. */
1805
1806static symint_t
1807add_aux_sym_symint (aux_word)
1808 symint_t aux_word; /* auxiliary information word */
1809{
1810 register varray_t *vp;
1811 register aux_t *aux_ptr;
1812
1813 if (cur_file_ptr == (efdr_t *) NULL)
1814 as_fatal ("no current file pointer");
1815
1816 vp = &cur_file_ptr->aux_syms;
1817
1818 if (vp->objects_last_page == vp->objects_per_page)
1819 add_varray_page (vp);
1820
1821 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1822 aux_ptr->type = aux_isym;
1823 aux_ptr->data.isym = aux_word;
1824
1825 return vp->num_allocated++;
1826}
1827
1828
1829/* Add an auxiliary symbol (passing a file/symbol index combo). */
1830
1831static symint_t
1832add_aux_sym_rndx (file_index, sym_index)
1833 int file_index;
1834 symint_t sym_index;
1835{
1836 register varray_t *vp;
1837 register aux_t *aux_ptr;
1838
1839 if (cur_file_ptr == (efdr_t *) NULL)
1840 as_fatal ("no current file pointer");
1841
1842 vp = &cur_file_ptr->aux_syms;
1843
1844 if (vp->objects_last_page == vp->objects_per_page)
1845 add_varray_page (vp);
1846
1847 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1848 aux_ptr->type = aux_rndx;
1849 aux_ptr->data.rndx.rfd = file_index;
1850 aux_ptr->data.rndx.index = sym_index;
1851
1852 return vp->num_allocated++;
1853}
1854\f
1855/* Add an auxiliary symbol (passing the basic type and possibly
1856 type qualifiers). */
1857
1858static symint_t
1859add_aux_sym_tir (t, state, hash_tbl)
1860 type_info_t *t; /* current type information */
1861 hash_state_t state; /* whether to hash type or not */
1862 thash_t **hash_tbl; /* pointer to hash table to use */
1863{
1864 register varray_t *vp;
1865 register aux_t *aux_ptr;
1866 static AUXU init_aux;
1867 symint_t ret;
1868 int i;
1869 AUXU aux;
1870
1871 if (cur_file_ptr == (efdr_t *) NULL)
1872 as_fatal ("no current file pointer");
1873
1874 vp = &cur_file_ptr->aux_syms;
1875
1876 aux = init_aux;
1877 aux.ti.bt = (int) t->basic_type;
1878 aux.ti.continued = 0;
1879 aux.ti.fBitfield = t->bitfield;
1880
1881 aux.ti.tq0 = (int) t->type_qualifiers[0];
1882 aux.ti.tq1 = (int) t->type_qualifiers[1];
1883 aux.ti.tq2 = (int) t->type_qualifiers[2];
1884 aux.ti.tq3 = (int) t->type_qualifiers[3];
1885 aux.ti.tq4 = (int) t->type_qualifiers[4];
1886 aux.ti.tq5 = (int) t->type_qualifiers[5];
1887
1888
1889 /* For anything that adds additional information, we must not hash,
1890 so check here, and reset our state. */
1891
1892 if (state != hash_no
1893 && (t->type_qualifiers[0] == tq_Array
1894 || t->type_qualifiers[1] == tq_Array
1895 || t->type_qualifiers[2] == tq_Array
1896 || t->type_qualifiers[3] == tq_Array
1897 || t->type_qualifiers[4] == tq_Array
1898 || t->type_qualifiers[5] == tq_Array
1899 || t->basic_type == bt_Struct
1900 || t->basic_type == bt_Union
1901 || t->basic_type == bt_Enum
1902 || t->bitfield
1903 || t->num_dims > 0))
1904 state = hash_no;
1905
1906 /* See if we can hash this type, and save some space, but some types
1907 can't be hashed (because they contain arrays or continuations),
1908 and others can be put into the hash list, but cannot use existing
1909 types because other aux entries precede this one. */
1910
1911 if (state != hash_no)
1912 {
1913 register thash_t *hash_ptr;
1914 register symint_t hi;
1915
1916 hi = aux.isym & ((1 << HASHBITS) - 1);
1917 hi %= THASH_SIZE;
1918
1919 for (hash_ptr = hash_tbl[hi];
1920 hash_ptr != (thash_t *)0;
1921 hash_ptr = hash_ptr->next)
1922 {
1923 if (aux.isym == hash_ptr->type.isym)
1924 break;
1925 }
1926
1927 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1928 return hash_ptr->indx;
1929
1930 if (hash_ptr == (thash_t *) NULL)
1931 {
1932 hash_ptr = allocate_thash ();
1933 hash_ptr->next = hash_tbl[hi];
1934 hash_ptr->type = aux;
1935 hash_ptr->indx = vp->num_allocated;
1936 hash_tbl[hi] = hash_ptr;
1937 }
1938 }
1939
1940 /* Everything is set up, add the aux symbol. */
1941 if (vp->objects_last_page == vp->objects_per_page)
1942 add_varray_page (vp);
1943
1944 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1945 aux_ptr->type = aux_tir;
1946 aux_ptr->data = aux;
1947
1948 ret = vp->num_allocated++;
1949
1950 /* Add bitfield length if it exists.
012353f7 1951
9faec336
ILT		 1952 NOTE: Mips documentation claims bitfield goes at the end of the
1953 AUX record, but the DECstation compiler emits it here.
1954 (This would only make a difference for enum bitfields.)
1955
1956 Also note: We use the last size given since gcc may emit 2
1957 for an enum bitfield. */
1958
1959 if (t->bitfield)
1960 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
1961
1962
1963 /* Add tag information if needed. Structure, union, and enum
1964 references add 2 aux symbols: a [file index, symbol index]
1965 pointer to the structure type, and the current file index. */
1966
1967 if (t->basic_type == bt_Struct
1968 || t->basic_type == bt_Union
1969 || t->basic_type == bt_Enum)
1970 {
1971 register symint_t file_index = t->tag_ptr->ifd;
1972 register localsym_t *sym = t->tag_ptr->sym;
1973 register forward_t *forward_ref = allocate_forward ();
1974
1975 if (sym != (localsym_t *) NULL)
1976 {
1977 forward_ref->next = sym->forward_ref;
1978 sym->forward_ref = forward_ref;
1979 }
1980 else
1981 {
1982 forward_ref->next = t->tag_ptr->forward_ref;
1983 t->tag_ptr->forward_ref = forward_ref;
1984 }
1985
1986 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
1987 forward_ref->index_ptr
1988 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1989
1990 (void) add_aux_sym_symint (file_index);
1991 forward_ref->ifd_ptr
1992 = &vp->last->datum->aux[ vp->objects_last_page - 1];
1993 }
1994
1995 /* Add information about array bounds if they exist. */
1996 for (i = 0; i < t->num_dims; i++)
1997 {
1998 (void) add_aux_sym_rndx (ST_RFDESCAPE,
1999 cur_file_ptr->int_type);
2000
2001 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2002 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2003 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2004 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2005 ? 0
2006 : (t->sizes[i] * 8) / t->dimensions[i]);
2007 };
2008
2009 /* NOTE: Mips documentation claims that the bitfield width goes here.
2010 But it needs to be emitted earlier. */
2011
2012 return ret;
2013}
2014\f
2015/* Add a tag to the tag table (unless it already exists). */
2016
2017static tag_t *
2018get_tag (tag, sym, basic_type)
2019 const char *tag; /* tag name */
2020 localsym_t *sym; /* tag start block */
2021 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2022{
2023 shash_t *hash_ptr;
2024 const char *err;
2025 tag_t *tag_ptr;
2026
2027 if (cur_file_ptr == (efdr_t *) NULL)
2028 as_fatal ("no current file pointer");
2029
2030 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2031
2032 if (hash_ptr != (shash_t *) NULL
2033 && hash_ptr->tag_ptr != (tag_t *) NULL)
2034 {
2035 tag_ptr = hash_ptr->tag_ptr;
2036 if (sym != (localsym_t *) NULL)
2037 {
2038 tag_ptr->basic_type = basic_type;
2039 tag_ptr->ifd = cur_file_ptr->file_index;
2040 tag_ptr->sym = sym;
2041 }
2042 return tag_ptr;
2043 }
2044
2045 if (hash_ptr == (shash_t *) NULL)
2046 {
2047 char *perm;
2048
2049 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2050 strcpy (perm, tag);
2051 hash_ptr = allocate_shash ();
2052 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2053 if (err)
2054 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2055 tag, err);
2056 hash_ptr->string = perm;
2057 }
2058
2059 tag_ptr = allocate_tag ();
2060 tag_ptr->forward_ref = (forward_t *) NULL;
2061 tag_ptr->hash_ptr = hash_ptr;
2062 tag_ptr->same_name = hash_ptr->tag_ptr;
2063 tag_ptr->basic_type = basic_type;
2064 tag_ptr->sym = sym;
2065 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2066 ? (symint_t) -1
2067 : cur_file_ptr->file_index);
2068 tag_ptr->same_block = cur_tag_head->first_tag;
2069
2070 cur_tag_head->first_tag = tag_ptr;
2071 hash_ptr->tag_ptr = tag_ptr;
2072
2073 return tag_ptr;
2074}
2075\f
2076/* Add an unknown {struct, union, enum} tag. */
2077
2078static void
2079add_unknown_tag (ptag)
2080 tag_t *ptag; /* pointer to tag information */
2081{
2082 shash_t *hash_ptr = ptag->hash_ptr;
2083 char *name = hash_ptr->string;
2084 localsym_t *sym;
2085 forward_t **pf;
2086
2087#ifdef ECOFF_DEBUG
2088 if (debug > 1)
2089 {
2090 char *agg_type = "{unknown aggregate type}";
2091 switch (ptag->basic_type)
2092 {
2093 case bt_Struct: agg_type = "struct"; break;
2094 case bt_Union: agg_type = "union"; break;
2095 case bt_Enum: agg_type = "enum"; break;
2096 default: break;
2097 }
2098
2099 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2100 hash_ptr->len, name_start);
2101 }
2102#endif
2103
2104 sym = add_ecoff_symbol (name,
2105 st_Block,
2106 sc_Info,
2107 (symbolS *) NULL,
8e3ff081 2108 (bfd_vma) 0,
9faec336
ILT		 2109 (symint_t) 0,
2110 (symint_t) 0);
2111
2112 (void) add_ecoff_symbol (name,
2113 st_End,
2114 sc_Info,
2115 (symbolS *) NULL,
8e3ff081 2116 (bfd_vma) 0,
9faec336
ILT		 2117 (symint_t) 0,
2118 (symint_t) 0);
2119
2120 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2121 ;
2122 *pf = ptag->forward_ref;
2123}
2124\f
2125/* Add a procedure to the current file's list of procedures, and record
2126 this is the current procedure. */
2127
2128static void
2129add_procedure (func)
2130 char *func; /* func name */
2131{
2132 register varray_t *vp;
2133 register proc_t *new_proc_ptr;
c15ea23a 2134 symbolS *sym;
9faec336
ILT		 2135
2136#ifdef ECOFF_DEBUG
2137 if (debug)
2138 fputc ('\n', stderr);
2139#endif
2140
2141 if (cur_file_ptr == (efdr_t *) NULL)
2142 as_fatal ("no current file pointer");
2143
2144 vp = &cur_file_ptr->procs;
2145
2146 if (vp->objects_last_page == vp->objects_per_page)
2147 add_varray_page (vp);
2148
2149 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2150
daad3bbf
KH		 2151 if (first_proc_ptr == (proc_t *) NULL)
2152 first_proc_ptr = new_proc_ptr;
2153
9faec336
ILT		 2154 vp->num_allocated++;
2155
2156 new_proc_ptr->pdr.isym = -1;
2157 new_proc_ptr->pdr.iline = -1;
2158 new_proc_ptr->pdr.lnLow = -1;
2159 new_proc_ptr->pdr.lnHigh = -1;
2160
c15ea23a
ILT		 2161 /* Set the BSF_FUNCTION flag for the symbol. */
2162 sym = symbol_find_or_make (func);
2163 sym->bsym->flags |= BSF_FUNCTION;
2164
9faec336
ILT		 2165 /* Push the start of the function. */
2166 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
c15ea23a 2167 sym, (bfd_vma) 0, (symint_t) 0,
8e3ff081 2168 (symint_t) 0);
9faec336
ILT		 2169
2170 ++proc_cnt;
2171
2172 /* Fill in the linenos preceding the .ent, if any. */
2173 if (noproc_lineno != (lineno_list_t *) NULL)
2174 {
2175 lineno_list_t *l;
2176
2177 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2178 l->proc = new_proc_ptr;
2179 *last_lineno_ptr = noproc_lineno;
2180 while (*last_lineno_ptr != NULL)
cfc71c6d
ILT		 2181 {
2182 last_lineno = *last_lineno_ptr;
2183 last_lineno_ptr = &last_lineno->next;
2184 }
9faec336
ILT		 2185 noproc_lineno = (lineno_list_t *) NULL;
2186 }
2187}
2188\f
2189/* Add a new filename, and set up all of the file relative
2190 virtual arrays (strings, symbols, aux syms, etc.). Record
2191 where the current file structure lives. */
2192
2193static void
d7b2038f 2194add_file (file_name, indx, fake)
9faec336
ILT		 2195 const char *file_name; /* file name */
2196 int indx;
d7b2038f 2197 int fake;
9faec336
ILT		 2198{
2199 register int first_ch;
2200 register efdr_t *fil_ptr;
2201
2202#ifdef ECOFF_DEBUG
2203 if (debug)
2204 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2205#endif
2206
2207 /* If the file name is NULL, then no .file symbol appeared, and we
2208 want to use the actual file name. */
2209 if (file_name == (const char *) NULL)
2210 {
2211 char *file;
2212
2213 if (first_file != (efdr_t *) NULL)
2214 as_fatal ("fake .file after real one");
2215 as_where (&file, (unsigned int *) NULL);
2216 file_name = (const char *) file;
326d16ca 2217
3ffbc907 2218 if (! symbol_table_frozen)
326d16ca 2219 generate_asm_lineno = 1;
9faec336 2220 }
daad3bbf 2221 else
326d16ca 2222 generate_asm_lineno = 0;
9faec336
ILT		 2223
2224#ifndef NO_LISTING
2225 if (listing)
2226 listing_source_file (file_name);
2227#endif
2228
a2a1a548
ILT		 2229 current_stabs_filename = file_name;
2230
9faec336
ILT		 2231 /* If we're creating stabs, then we don't actually make a new FDR.
2232 Instead, we just create a stabs symbol. */
2233 if (stabs_seen)
2234 {
2235 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2236 symbol_new ("L0\001", now_seg,
2237 (valueT) frag_now_fix (),
2238 frag_now),
8e3ff081 2239 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SOL));
9faec336
ILT		 2240 return;
2241 }
2242
2243 first_ch = *file_name;
2244
cfc71c6d
ILT		 2245 /* FIXME: We can't safely merge files which have line number
2246 information (fMerge will be zero in this case). Otherwise, we
2247 get incorrect line number debugging info. See for instance
2248 ecoff_build_lineno, which will end up setting all file->fdr.*
2249 fields multiple times, resulting in incorrect debug info. In
2250 order to make this work right, all line number and symbol info
2251 for the same source file has to be adjacent in the object file,
2252 so that a single file descriptor can be used to point to them.
2253 This would require maintaining file specific lists of line
2254 numbers and symbols for each file, so that they can be merged
2255 together (or output together) when two .file pseudo-ops are
2256 merged into one file descriptor. */
d7b2038f 2257
9faec336
ILT		 2258 /* See if the file has already been created. */
2259 for (fil_ptr = first_file;
2260 fil_ptr != (efdr_t *) NULL;
2261 fil_ptr = fil_ptr->next_file)
2262 {
2263 if (first_ch == fil_ptr->name[0]
cfc71c6d
ILT		 2264 && strcmp (file_name, fil_ptr->name) == 0
2265 && fil_ptr->fdr.fMerge)
9faec336
ILT		 2266 {
2267 cur_file_ptr = fil_ptr;
d7b2038f
ILT		 2268 if (! fake)
2269 cur_file_ptr->fake = 0;
9faec336
ILT		 2270 break;
2271 }
2272 }
2273
2274 /* If this is a new file, create it. */
2275 if (fil_ptr == (efdr_t *) NULL)
2276 {
2277 if (file_desc.objects_last_page == file_desc.objects_per_page)
2278 add_varray_page (&file_desc);
2279
2280 fil_ptr = cur_file_ptr =
2281 &file_desc.last->datum->file[file_desc.objects_last_page++];
2282 *fil_ptr = init_file;
2283
012353f7 2284 fil_ptr->file_index = current_file_idx++;
9faec336
ILT		 2285 ++file_desc.num_allocated;
2286
d7b2038f
ILT		 2287 fil_ptr->fake = fake;
2288
9faec336
ILT		 2289 /* Allocate the string hash table. */
2290 fil_ptr->str_hash = hash_new ();
2291
2292 /* Make sure 0 byte in string table is null */
2293 add_string (&fil_ptr->strings,
2294 fil_ptr->str_hash,
2295 "",
2296 (shash_t **)0);
2297
2298 if (strlen (file_name) > PAGE_USIZE - 2)
2299 as_fatal ("Filename goes over one page boundary.");
2300
2301 /* Push the start of the filename. We assume that the filename
2302 will be stored at string offset 1. */
2303 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
8e3ff081 2304 (symbolS *) NULL, (bfd_vma) 0,
9faec336
ILT		 2305 (symint_t) 0, (symint_t) 0);
2306 fil_ptr->fdr.rss = 1;
2307 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2308
2309 /* Update the linked list of file descriptors. */
2310 *last_file_ptr = fil_ptr;
2311 last_file_ptr = &fil_ptr->next_file;
2312
2313 /* Add void & int types to the file (void should be first to catch
2314 errant 0's within the index fields). */
2315 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2316 hash_yes,
2317 &cur_file_ptr->thash_head[0]);
2318
2319 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2320 hash_yes,
2321 &cur_file_ptr->thash_head[0]);
326d16ca
KH		 2322 /* gas used to have a bug that if the file does not have any
2323 symbol, it either will abort or will not build the file,
2324 the following is to get around that problem. ---kung*/
2325#if 0
2326 if (generate_asm_lineno)
daad3bbf 2327 {
daad3bbf
KH		 2328 mark_stabs (0);
2329 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
3ffbc907
ILT		 2330 symbol_new ("L0\001", now_seg,
2331 (valueT) frag_now_fix (),
2332 frag_now),
8e3ff081 2333 (bfd_vma) 0, 0, ECOFF_MARK_STAB (N_SO));
3ffbc907 2334 (void) add_ecoff_symbol ("void:t1=1", st_Nil, sc_Nil,
8e3ff081 2335 (symbolS *) NULL, (bfd_vma) 0, 0,
3ffbc907 2336 ECOFF_MARK_STAB (N_LSYM));
daad3bbf 2337 }
326d16ca 2338#endif
9faec336
ILT		 2339 }
2340}
cfc71c6d
ILT		 2341
2342/* This function is called when the assembler notices a preprocessor
2343 directive switching to a new file. This will not happen in
2344 compiler output, only in hand coded assembler. */
2345
2346void
2347ecoff_new_file (name)
2348 const char *name;
2349{
475c826b
ILT		 2350 if (cur_file_ptr != NULL && strcmp (cur_file_ptr->name, name) == 0)
2351 return;
cfc71c6d
ILT		 2352 add_file (name, 0, 0);
2353 generate_asm_lineno = 1;
2354}
9faec336
ILT		 2355\f
2356#ifdef ECOFF_DEBUG
2357
2358/* Convert storage class to string. */
2359
2360static char *
2361sc_to_string(storage_class)
2362 sc_t storage_class;
2363{
2364 switch(storage_class)
2365 {
2366 case sc_Nil: return "Nil,";
2367 case sc_Text: return "Text,";
2368 case sc_Data: return "Data,";
2369 case sc_Bss: return "Bss,";
2370 case sc_Register: return "Register,";
2371 case sc_Abs: return "Abs,";
2372 case sc_Undefined: return "Undefined,";
2373 case sc_CdbLocal: return "CdbLocal,";
2374 case sc_Bits: return "Bits,";
2375 case sc_CdbSystem: return "CdbSystem,";
2376 case sc_RegImage: return "RegImage,";
2377 case sc_Info: return "Info,";
2378 case sc_UserStruct: return "UserStruct,";
2379 case sc_SData: return "SData,";
2380 case sc_SBss: return "SBss,";
2381 case sc_RData: return "RData,";
2382 case sc_Var: return "Var,";
2383 case sc_Common: return "Common,";
2384 case sc_SCommon: return "SCommon,";
2385 case sc_VarRegister: return "VarRegister,";
2386 case sc_Variant: return "Variant,";
2387 case sc_SUndefined: return "SUndefined,";
2388 case sc_Init: return "Init,";
2389 case sc_Max: return "Max,";
2390 }
2391
2392 return "???,";
2393}
2394
2395#endif /* DEBUG */
2396\f
2397#ifdef ECOFF_DEBUG
2398
2399/* Convert symbol type to string. */
2400
2401static char *
2402st_to_string(symbol_type)
2403 st_t symbol_type;
2404{
2405 switch(symbol_type)
2406 {
2407 case st_Nil: return "Nil,";
2408 case st_Global: return "Global,";
2409 case st_Static: return "Static,";
2410 case st_Param: return "Param,";
2411 case st_Local: return "Local,";
2412 case st_Label: return "Label,";
2413 case st_Proc: return "Proc,";
2414 case st_Block: return "Block,";
2415 case st_End: return "End,";
2416 case st_Member: return "Member,";
2417 case st_Typedef: return "Typedef,";
2418 case st_File: return "File,";
2419 case st_RegReloc: return "RegReloc,";
2420 case st_Forward: return "Forward,";
2421 case st_StaticProc: return "StaticProc,";
2422 case st_Constant: return "Constant,";
2423 case st_Str: return "String,";
2424 case st_Number: return "Number,";
2425 case st_Expr: return "Expr,";
2426 case st_Type: return "Type,";
2427 case st_Max: return "Max,";
2428 }
2429
2430 return "???,";
2431}
2432
2433#endif /* DEBUG */
2434\f
2435/* Parse .begin directives which have a label as the first argument
2436 which gives the location of the start of the block. */
2437
2438void
2439ecoff_directive_begin (ignore)
2440 int ignore;
2441{
2442 char *name;
2443 char name_end;
2444
2445 if (cur_file_ptr == (efdr_t *) NULL)
2446 {
2447 as_warn (".begin directive without a preceding .file directive");
2448 demand_empty_rest_of_line ();
2449 return;
2450 }
2451
2452 if (cur_proc_ptr == (proc_t *) NULL)
2453 {
2454 as_warn (".begin directive without a preceding .ent directive");
2455 demand_empty_rest_of_line ();
2456 return;
2457 }
012353f7 2458
9faec336
ILT		 2459 name = input_line_pointer;
2460 name_end = get_symbol_end ();
2461
2462 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2463 symbol_find_or_make (name),
8e3ff081 2464 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
9faec336
ILT		 2465
2466 *input_line_pointer = name_end;
2467
2468 /* The line number follows, but we don't use it. */
2469 (void) get_absolute_expression ();
2470 demand_empty_rest_of_line ();
2471}
2472\f
2473/* Parse .bend directives which have a label as the first argument
2474 which gives the location of the end of the block. */
2475
2476void
2477ecoff_directive_bend (ignore)
2478 int ignore;
2479{
2480 char *name;
2481 char name_end;
2482 symbolS *endsym;
2483
2484 if (cur_file_ptr == (efdr_t *) NULL)
2485 {
2486 as_warn (".bend directive without a preceding .file directive");
2487 demand_empty_rest_of_line ();
2488 return;
2489 }
2490
2491 if (cur_proc_ptr == (proc_t *) NULL)
2492 {
2493 as_warn (".bend directive without a preceding .ent directive");
2494 demand_empty_rest_of_line ();
2495 return;
2496 }
2497
2498 name = input_line_pointer;
2499 name_end = get_symbol_end ();
2500
2501 /* The value is the distance between the .bend directive and the
2502 corresponding symbol. We fill in the offset when we write out
2503 the symbol. */
2504 endsym = symbol_find (name);
2505 if (endsym == (symbolS *) NULL)
2506 as_warn (".bend directive names unknown symbol");
2507 else
2508 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
8e3ff081 2509 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
9faec336
ILT		 2510
2511 *input_line_pointer = name_end;
2512
2513 /* The line number follows, but we don't use it. */
2514 (void) get_absolute_expression ();
2515 demand_empty_rest_of_line ();
2516}
2517\f
2518/* COFF debugging information is provided as a series of directives
2519 (.def, .scl, etc.). We build up information as we read the
2520 directives in the following static variables, and file it away when
2521 we reach the .endef directive. */
2522static char *coff_sym_name;
2523static type_info_t coff_type;
2524static sc_t coff_storage_class;
2525static st_t coff_symbol_typ;
2526static int coff_is_function;
2527static char *coff_tag;
2528static valueT coff_value;
8e3ff081
ILT		 2529static symbolS *coff_sym_value;
2530static bfd_vma coff_sym_addend;
9faec336
ILT		 2531static int coff_inside_enumeration;
2532
2533/* Handle a .def directive: start defining a symbol. */
2534
2535void
2536ecoff_directive_def (ignore)
2537 int ignore;
2538{
2539 char *name;
2540 char name_end;
2541
22ba90ce
ILT		 2542 ecoff_debugging_seen = 1;
2543
9faec336
ILT		 2544 SKIP_WHITESPACE ();
2545
2546 name = input_line_pointer;
2547 name_end = get_symbol_end ();
2548
2549 if (coff_sym_name != (char *) NULL)
2550 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2551 else if (*name == '\0')
2552 as_warn ("Empty symbol name in .def; ignored");
2553 else
2554 {
2555 if (coff_sym_name != (char *) NULL)
2556 free (coff_sym_name);
2557 if (coff_tag != (char *) NULL)
2558 free (coff_tag);
2559 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2560 strcpy (coff_sym_name, name);
2561 coff_type = type_info_init;
2562 coff_storage_class = sc_Nil;
2563 coff_symbol_typ = st_Nil;
2564 coff_is_function = 0;
2565 coff_tag = (char *) NULL;
2566 coff_value = 0;
2567 coff_sym_value = (symbolS *) NULL;
8e3ff081 2568 coff_sym_addend = 0;
9faec336
ILT		 2569 }
2570
2571 *input_line_pointer = name_end;
2572
2573 demand_empty_rest_of_line ();
2574}
2575
2576/* Handle a .dim directive, used to give dimensions for an array. The
2577 arguments are comma separated numbers. mips-tfile assumes that
2578 there will not be more than 6 dimensions, and gdb won't read any
2579 more than that anyhow, so I will also make that assumption. */
2580
2581void
2582ecoff_directive_dim (ignore)
2583 int ignore;
2584{
2585 int dimens[N_TQ];
2586 int i;
2587
2588 if (coff_sym_name == (char *) NULL)
2589 {
2590 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2591 demand_empty_rest_of_line ();
2592 return;
2593 }
2594
2595 for (i = 0; i < N_TQ; i++)
2596 {
2597 SKIP_WHITESPACE ();
2598 dimens[i] = get_absolute_expression ();
2599 if (*input_line_pointer == ',')
2600 ++input_line_pointer;
2601 else
2602 {
2603 if (*input_line_pointer != '\n'
2604 && *input_line_pointer != ';')
2605 as_warn ("Badly formed .dim directive");
2606 break;
2607 }
2608 }
2609
2610 if (i == N_TQ)
2611 --i;
2612
2613 /* The dimensions are stored away in reverse order. */
2614 for (; i >= 0; i--)
2615 {
2616 if (coff_type.num_dims >= N_TQ)
2617 {
2618 as_warn ("Too many .dim entries");
2619 break;
2620 }
2621 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2622 ++coff_type.num_dims;
2623 }
2624
2625 demand_empty_rest_of_line ();
2626}
2627
2628/* Handle a .scl directive, which sets the COFF storage class of the
2629 symbol. */
2630
2631void
2632ecoff_directive_scl (ignore)
2633 int ignore;
2634{
2635 long val;
2636
2637 if (coff_sym_name == (char *) NULL)
2638 {
2639 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2640 demand_empty_rest_of_line ();
2641 return;
2642 }
2643
2644 val = get_absolute_expression ();
2645
2646 coff_symbol_typ = map_coff_sym_type[val];
2647 coff_storage_class = map_coff_storage[val];
2648
2649 demand_empty_rest_of_line ();
2650}
2651
2652/* Handle a .size directive. For some reason mips-tfile.c thinks that
2653 .size can have multiple arguments. We humor it, although gcc will
2654 never generate more than one argument. */
2655
2656void
2657ecoff_directive_size (ignore)
2658 int ignore;
2659{
2660 int sizes[N_TQ];
2661 int i;
2662
2663 if (coff_sym_name == (char *) NULL)
2664 {
2665 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2666 demand_empty_rest_of_line ();
2667 return;
2668 }
2669
2670 for (i = 0; i < N_TQ; i++)
2671 {
2672 SKIP_WHITESPACE ();
2673 sizes[i] = get_absolute_expression ();
2674 if (*input_line_pointer == ',')
2675 ++input_line_pointer;
2676 else
2677 {
2678 if (*input_line_pointer != '\n'
2679 && *input_line_pointer != ';')
2680 as_warn ("Badly formed .size directive");
2681 break;
2682 }
2683 }
2684
2685 if (i == N_TQ)
2686 --i;
2687
2688 /* The sizes are stored away in reverse order. */
2689 for (; i >= 0; i--)
2690 {
2691 if (coff_type.num_sizes >= N_TQ)
2692 {
2693 as_warn ("Too many .size entries");
2694 break;
2695 }
2696 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2697 ++coff_type.num_sizes;
2698 }
2699
2700 demand_empty_rest_of_line ();
2701}
2702
2703/* Handle the .type directive, which gives the COFF type of the
2704 symbol. */
2705
2706void
2707ecoff_directive_type (ignore)
2708 int ignore;
2709{
2710 long val;
2711 tq_t *tq_ptr;
2712 tq_t *tq_shft;
2713
2714 if (coff_sym_name == (char *) NULL)
2715 {
2716 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2717 demand_empty_rest_of_line ();
2718 return;
2719 }
2720
2721 val = get_absolute_expression ();
2722
2723 coff_type.orig_type = BTYPE (val);
2724 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2725
2726 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2727 while (val &~ N_BTMASK)
2728 {
2729 if (tq_ptr == &coff_type.type_qualifiers[0])
2730 {
22ba90ce
ILT		 2731 /* FIXME: We could handle this by setting the continued bit.
2732 There would still be a limit: the .type argument can not
2733 be infinite. */
2734 as_warn ("The type of %s is too complex; it will be simplified",
2735 coff_sym_name);
9faec336
ILT		 2736 break;
2737 }
2738 if (ISPTR (val))
2739 *--tq_ptr = tq_Ptr;
2740 else if (ISFCN (val))
2741 *--tq_ptr = tq_Proc;
2742 else if (ISARY (val))
2743 *--tq_ptr = tq_Array;
2744 else
2745 as_fatal ("Unrecognized .type argument");
2746
2747 val = DECREF (val);
2748 }
2749
2750 tq_shft = &coff_type.type_qualifiers[0];
2751 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2752 *tq_shft++ = *tq_ptr++;
2753
2754 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2755 {
2756 /* If this is a function, ignore it, so that we don't get two
2757 entries (one from the .ent, and one for the .def that
2758 precedes it). Save the type information so that the end
2759 block can properly add it after the begin block index. For
2760 MIPS knows what reason, we must strip off the function type
2761 at this point. */
2762 coff_is_function = 1;
2763 tq_shft[-1] = tq_Nil;
2764 }
2765
2766 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2767 *tq_shft++ = tq_Nil;
2768
2769 demand_empty_rest_of_line ();
2770}
2771
2772/* Handle the .tag directive, which gives the name of a structure,
2773 union or enum. */
2774
2775void
2776ecoff_directive_tag (ignore)
2777 int ignore;
2778{
2779 char *name;
2780 char name_end;
2781
2782 if (coff_sym_name == (char *) NULL)
2783 {
2784 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2785 demand_empty_rest_of_line ();
2786 return;
2787 }
2788
2789 name = input_line_pointer;
2790 name_end = get_symbol_end ();
2791
2792 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2793 strcpy (coff_tag, name);
2794
2795 *input_line_pointer = name_end;
2796
2797 demand_empty_rest_of_line ();
2798}
2799
2800/* Handle the .val directive, which gives the value of the symbol. It
2801 may be the name of a static or global symbol. */
2802
2803void
2804ecoff_directive_val (ignore)
2805 int ignore;
2806{
8e3ff081
ILT		 2807 expressionS exp;
2808
9faec336
ILT		 2809 if (coff_sym_name == (char *) NULL)
2810 {
2811 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2812 demand_empty_rest_of_line ();
2813 return;
2814 }
2815
8e3ff081
ILT		 2816 expression (&exp);
2817 if (exp.X_op != O_constant && exp.X_op != O_symbol)
9faec336 2818 {
8e3ff081
ILT		 2819 as_bad (".val expression is too copmlex");
2820 demand_empty_rest_of_line ();
2821 return;
2822 }
9faec336 2823
8e3ff081
ILT		 2824 if (exp.X_op == O_constant)
2825 coff_value = exp.X_add_number;
2826 else
2827 {
2828 coff_sym_value = exp.X_add_symbol;
2829 coff_sym_addend = exp.X_add_number;
9faec336
ILT		 2830 }
2831
2832 demand_empty_rest_of_line ();
2833}
2834
2835/* Handle the .endef directive, which terminates processing of COFF
2836 debugging information for a symbol. */
2837
2838void
2839ecoff_directive_endef (ignore)
2840 int ignore;
2841{
2842 char *name;
2843 symint_t indx;
2844 localsym_t *sym;
2845
2846 demand_empty_rest_of_line ();
2847
2848 if (coff_sym_name == (char *) NULL)
2849 {
2850 as_warn (".endef pseudo-op used before .def; ignored");
2851 return;
2852 }
2853
2854 name = coff_sym_name;
2855 coff_sym_name = (char *) NULL;
2856
2857 /* If the symbol is a static or external, we have already gotten the
2858 appropriate type and class, so make sure we don't override those
2859 values. This is needed because there are some type and classes
2860 that are not in COFF, such as short data, etc. */
2861 if (coff_sym_value != (symbolS *) NULL)
2862 {
2863 coff_symbol_typ = st_Nil;
2864 coff_storage_class = sc_Nil;
2865 }
2866
2867 coff_type.extra_sizes = coff_tag != (char *) NULL;
2868 if (coff_type.num_dims > 0)
2869 {
2870 int diff = coff_type.num_dims - coff_type.num_sizes;
2871 int i = coff_type.num_dims - 1;
2872 int j;
2873
2874 if (coff_type.num_sizes != 1 || diff < 0)
2875 {
2876 as_warn ("Bad COFF debugging info");
2877 return;
2878 }
2879
2880 /* If this is an array, make sure the same number of dimensions
2881 and sizes were passed, creating extra sizes for multiply
2882 dimensioned arrays if not passed. */
2883 coff_type.extra_sizes = 0;
2884 if (diff)
2885 {
2886 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2887 while (j >= 0)
2888 {
2889 coff_type.sizes[j] = (((j - diff) >= 0)
2890 ? coff_type.sizes[j - diff]
2891 : 0);
2892 j--;
2893 }
2894
2895 coff_type.num_sizes = i + 1;
2896 for (i--; i >= 0; i--)
cfc71c6d
ILT		 2897 coff_type.sizes[i] = (coff_type.dimensions[i + 1] == 0
2898 ? 0
2899 : (coff_type.sizes[i + 1]
2900 / coff_type.dimensions[i + 1]));
9faec336
ILT		 2901 }
2902 }
2903 else if (coff_symbol_typ == st_Member
2904 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2905 {
2906 /* Is this a bitfield? This is indicated by a structure memeber
2907 having a size field that isn't an array. */
2908 coff_type.bitfield = 1;
2909 }
2910
2911 /* Except for enumeration members & begin/ending of scopes, put the
2912 type word in the aux. symbol table. */
2913 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2914 indx = 0;
2915 else if (coff_inside_enumeration)
2916 indx = cur_file_ptr->void_type;
2917 else
2918 {
2919 if (coff_type.basic_type == bt_Struct
2920 || coff_type.basic_type == bt_Union
2921 || coff_type.basic_type == bt_Enum)
2922 {
2923 if (coff_tag == (char *) NULL)
2924 {
2925 as_warn ("No tag specified for %s", name);
2926 return;
2927 }
2928
2929 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2930 coff_type.basic_type);
2931 }
2932
2933 if (coff_is_function)
2934 {
2935 last_func_type_info = coff_type;
2936 last_func_sym_value = coff_sym_value;
2937 return;
2938 }
2939
2940 indx = add_aux_sym_tir (&coff_type,
2941 hash_yes,
2942 &cur_file_ptr->thash_head[0]);
2943 }
2944
2945 /* Do any last minute adjustments that are necessary. */
2946 switch (coff_symbol_typ)
2947 {
2948 default:
2949 break;
2950
2951 /* For the beginning of structs, unions, and enumerations, the
2952 size info needs to be passed in the value field. */
2953 case st_Block:
2954 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2955 != 1)
2956 {
2957 as_warn ("Bad COFF debugging information");
2958 return;
2959 }
2960 else
2961 coff_value = coff_type.sizes[0];
2962
2963 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2964 break;
2965
2966 /* For the end of structs, unions, and enumerations, omit the
2967 name which is always ".eos". This needs to be done last, so
2968 that any error reporting above gives the correct name. */
2969 case st_End:
2970 free (name);
2971 name = (char *) NULL;
2972 coff_value = 0;
2973 coff_inside_enumeration = 0;
2974 break;
2975
2976 /* Members of structures and unions that aren't bitfields, need
2977 to adjust the value from a byte offset to a bit offset.
2978 Members of enumerations do not have the value adjusted, and
2979 can be distinguished by indx == indexNil. For enumerations,
2980 update the maximum enumeration value. */
2981 case st_Member:
2982 if (! coff_type.bitfield && ! coff_inside_enumeration)
2983 coff_value *= 8;
2984
2985 break;
2986 }
2987
2988 /* Add the symbol. */
2989 sym = add_ecoff_symbol (name,
2990 coff_symbol_typ,
2991 coff_storage_class,
2992 coff_sym_value,
8e3ff081 2993 coff_sym_addend,
9faec336
ILT		 2994 (symint_t) coff_value,
2995 indx);
2996
2997 /* deal with struct, union, and enum tags. */
2998 if (coff_symbol_typ == st_Block)
2999 {
3000 /* Create or update the tag information. */
3001 tag_t *tag_ptr = get_tag (name,
3002 sym,
3003 coff_type.basic_type);
3004 forward_t **pf;
3005
3006 /* Remember any forward references. */
3007 for (pf = &sym->forward_ref;
3008 *pf != (forward_t *) NULL;
3009 pf = &(*pf)->next)
3010 ;
3011 *pf = tag_ptr->forward_ref;
3012 tag_ptr->forward_ref = (forward_t *) NULL;
3013 }
3014}
3015\f
3016/* Parse .end directives. */
3017
3018void
3019ecoff_directive_end (ignore)
3020 int ignore;
3021{
3022 char *name;
3023 char name_end;
3024 register int ch;
3025 symbolS *ent;
3026
3027 if (cur_file_ptr == (efdr_t *) NULL)
3028 {
3029 as_warn (".end directive without a preceding .file directive");
3030 demand_empty_rest_of_line ();
3031 return;
3032 }
3033
3034 if (cur_proc_ptr == (proc_t *) NULL)
3035 {
3036 as_warn (".end directive without a preceding .ent directive");
3037 demand_empty_rest_of_line ();
3038 return;
3039 }
3040
3041 name = input_line_pointer;
3042 name_end = get_symbol_end ();
012353f7 3043
9faec336
ILT		 3044 ch = *name;
3045 if (! is_name_beginner (ch))
3046 {
3047 as_warn (".end directive has no name");
3048 *input_line_pointer = name_end;
3049 demand_empty_rest_of_line ();
3050 return;
3051 }
3052
3053 /* The value is the distance between the .end directive and the
3054 corresponding symbol. We create a fake symbol to hold the
3055 current location, and put in the offset when we write out the
3056 symbol. */
3057 ent = symbol_find (name);
3058 if (ent == (symbolS *) NULL)
3059 as_warn (".end directive names unknown symbol");
3060 else
daad3bbf
KH		 3061 {
3062 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
8e3ff081
ILT		 3063 symbol_new ("L0\001", now_seg,
3064 (valueT) frag_now_fix (),
3065 frag_now),
3066 (bfd_vma) 0, (symint_t) 0, (symint_t) 0);
326d16ca
KH		 3067
3068 if (stabs_seen && generate_asm_lineno)
daad3bbf
KH		 3069 {
3070 char *n;
3071
3072 n = xmalloc (strlen (name) + 4);
3073 strcpy (n, name);
3074 strcat (n, ":F1");
3075 (void) add_ecoff_symbol ((const char *) n, stGlobal, scText,
8e3ff081
ILT		 3076 ent, (bfd_vma) 0, 0,
3077 ECOFF_MARK_STAB (N_FUN));
daad3bbf
KH		 3078 }
3079 }
9faec336
ILT		 3080
3081 cur_proc_ptr = (proc_t *) NULL;
3082
3083 *input_line_pointer = name_end;
3084 demand_empty_rest_of_line ();
3085}
3086\f
3087/* Parse .ent directives. */
3088
3089void
3090ecoff_directive_ent (ignore)
3091 int ignore;
3092{
3093 char *name;
3094 char name_end;
3095 register int ch;
3096
3097 if (cur_file_ptr == (efdr_t *) NULL)
d7b2038f 3098 add_file ((const char *) NULL, 0, 1);
9faec336
ILT		 3099
3100 if (cur_proc_ptr != (proc_t *) NULL)
3101 {
3102 as_warn ("second .ent directive found before .end directive");
3103 demand_empty_rest_of_line ();
3104 return;
3105 }
3106
3107 name = input_line_pointer;
3108 name_end = get_symbol_end ();
3109
3110 ch = *name;
3111 if (! is_name_beginner (ch))
3112 {
3113 as_warn (".ent directive has no name");
3114 *input_line_pointer = name_end;
3115 demand_empty_rest_of_line ();
3116 return;
3117 }
3118
3119 add_procedure (name);
3120
3121 *input_line_pointer = name_end;
3122
3123 /* The .ent directive is sometimes followed by a number. I'm not
3124 really sure what the number means. I don't see any way to store
3125 the information in the PDR. The Irix 4 assembler seems to ignore
3126 the information. */
3127 SKIP_WHITESPACE ();
3128 if (*input_line_pointer == ',')
3129 {
3130 ++input_line_pointer;
3131 SKIP_WHITESPACE ();
3132 }
3133 if (isdigit (*input_line_pointer) || *input_line_pointer == '-')
3134 (void) get_absolute_expression ();
3135
3136 demand_empty_rest_of_line ();
3137}
3138\f
d7b2038f
ILT		 3139/* Parse .extern directives. */
3140
3141void
3142ecoff_directive_extern (ignore)
3143 int ignore;
3144{
3145 char *name;
3146 int c;
3147 symbolS *symbolp;
3148 valueT size;
3149
3150 name = input_line_pointer;
3151 c = get_symbol_end ();
3152 symbolp = symbol_find_or_make (name);
3153 *input_line_pointer = c;
3154
3155 S_SET_EXTERNAL (symbolp);
3156
3157 if (*input_line_pointer == ',')
3158 ++input_line_pointer;
3159 size = get_absolute_expression ();
3160
3161 symbolp->ecoff_extern_size = size;
3162}
3163\f
9faec336
ILT		 3164/* Parse .file directives. */
3165
3166void
3167ecoff_directive_file (ignore)
3168 int ignore;
3169{
3170 int indx;
3171 char *name;
3172 int len;
3173
3174 if (cur_proc_ptr != (proc_t *) NULL)
3175 {
3176 as_warn ("No way to handle .file within .ent/.end section");
3177 demand_empty_rest_of_line ();
3178 return;
3179 }
3180
3181 indx = (int) get_absolute_expression ();
3182
3183 /* FIXME: we don't have to save the name here. */
3184 name = demand_copy_C_string (&len);
3185
d7b2038f 3186 add_file (name, indx - 1, 0);
9faec336
ILT		 3187
3188 demand_empty_rest_of_line ();
3189}
3190\f
3191/* Parse .fmask directives. */
3192
3193void
3194ecoff_directive_fmask (ignore)
3195 int ignore;
3196{
3197 long val;
3198
3199 if (cur_proc_ptr == (proc_t *) NULL)
3200 {
3201 as_warn (".fmask outside of .ent");
3202 demand_empty_rest_of_line ();
3203 return;
3204 }
3205
3206 if (get_absolute_expression_and_terminator (&val) != ',')
3207 {
3208 as_warn ("Bad .fmask directive");
3209 --input_line_pointer;
3210 demand_empty_rest_of_line ();
3211 return;
3212 }
3213
3214 cur_proc_ptr->pdr.fregmask = val;
3215 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3216
3217 demand_empty_rest_of_line ();
3218}
3219\f
3220/* Parse .frame directives. */
3221
3222void
3223ecoff_directive_frame (ignore)
3224 int ignore;
3225{
3226 long val;
3227
3228 if (cur_proc_ptr == (proc_t *) NULL)
3229 {
3230 as_warn (".frame outside of .ent");
3231 demand_empty_rest_of_line ();
3232 return;
3233 }
3234
3235 cur_proc_ptr->pdr.framereg = tc_get_register (1);
3236
3237 SKIP_WHITESPACE ();
3238 if (*input_line_pointer++ != ','
3239 || get_absolute_expression_and_terminator (&val) != ',')
3240 {
3241 as_warn ("Bad .frame directive");
3242 --input_line_pointer;
3243 demand_empty_rest_of_line ();
3244 return;
3245 }
3246
3247 cur_proc_ptr->pdr.frameoffset = val;
3248
3249 cur_proc_ptr->pdr.pcreg = tc_get_register (0);
3250
012353f7
KR		 3251#if 0 /* Alpha-OSF1 adds "the offset of saved $a0 from $sp", according
3252 to Sandro. I don't yet know where this value should be stored, if
3253 anywhere. */
9faec336 3254 demand_empty_rest_of_line ();
012353f7
KR		 3255#else
3256 s_ignore (42);
3257#endif
9faec336
ILT		 3258}
3259\f
3260/* Parse .mask directives. */
3261
3262void
3263ecoff_directive_mask (ignore)
3264 int ignore;
3265{
3266 long val;
3267
3268 if (cur_proc_ptr == (proc_t *) NULL)
3269 {
3270 as_warn (".mask outside of .ent");
3271 demand_empty_rest_of_line ();
3272 return;
3273 }
3274
3275 if (get_absolute_expression_and_terminator (&val) != ',')
3276 {
3277 as_warn ("Bad .mask directive");
3278 --input_line_pointer;
3279 demand_empty_rest_of_line ();
3280 return;
3281 }
3282
3283 cur_proc_ptr->pdr.regmask = val;
3284 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3285
3286 demand_empty_rest_of_line ();
3287}
3288\f
3289/* Parse .loc directives. */
3290
3291void
3292ecoff_directive_loc (ignore)
3293 int ignore;
3294{
3295 lineno_list_t *list;
3296 symint_t lineno;
3297
3298 if (cur_file_ptr == (efdr_t *) NULL)
3299 {
3300 as_warn (".loc before .file");
3301 demand_empty_rest_of_line ();
3302 return;
3303 }
3304
3305 if (now_seg != text_section)
3306 {
3307 as_warn (".loc outside of .text");
3308 demand_empty_rest_of_line ();
3309 return;
3310 }
3311
3312 /* Skip the file number. */
3313 SKIP_WHITESPACE ();
3314 get_absolute_expression ();
3315 SKIP_WHITESPACE ();
3316
3317 lineno = get_absolute_expression ();
3318
3319#ifndef NO_LISTING
3320 if (listing)
3321 listing_source_line (lineno);
3322#endif
3323
3324 /* If we're building stabs, then output a special label rather than
3325 ECOFF line number info. */
3326 if (stabs_seen)
3327 {
3328 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3329 symbol_new ("L0\001", now_seg,
3330 (valueT) frag_now_fix (),
3331 frag_now),
8e3ff081 3332 (bfd_vma) 0, 0, lineno);
9faec336
ILT		 3333 return;
3334 }
3335
3336 list = allocate_lineno_list ();
3337
3338 list->next = (lineno_list_t *) NULL;
3339 list->file = cur_file_ptr;
3340 list->proc = cur_proc_ptr;
3341 list->frag = frag_now;
3342 list->paddr = frag_now_fix ();
3343 list->lineno = lineno;
3344
cfc71c6d
ILT		 3345 /* We don't want to merge files which have line numbers. */
3346 cur_file_ptr->fdr.fMerge = 0;
3347
9faec336
ILT		 3348 /* A .loc directive will sometimes appear before a .ent directive,
3349 which means that cur_proc_ptr will be NULL here. Arrange to
3350 patch this up. */
3351 if (cur_proc_ptr == (proc_t *) NULL)
3352 {
3353 lineno_list_t **pl;
3354
3355 pl = &noproc_lineno;
3356 while (*pl != (lineno_list_t *) NULL)
3357 pl = &(*pl)->next;
3358 *pl = list;
3359 }
3360 else
3361 {
cfc71c6d 3362 last_lineno = list;
9faec336
ILT		 3363 *last_lineno_ptr = list;
3364 last_lineno_ptr = &list->next;
3365 }
3366}
cfc71c6d
ILT		 3367
3368/* The MIPS assembler sometimes inserts nop instructions in the
3369 instruction stream. When this happens, we must patch up the .loc
3370 information so that it points to the instruction after the nop. */
3371
3372void
3373ecoff_fix_loc (old_frag, old_frag_offset)
3374 fragS *old_frag;
3375 unsigned long old_frag_offset;
3376{
3377 if (last_lineno != NULL
3378 && last_lineno->frag == old_frag
3379 && last_lineno->paddr == old_frag_offset)
3380 {
3381 last_lineno->frag = frag_now;
3382 last_lineno->paddr = frag_now_fix ();
3383 }
3384}
9faec336
ILT		 3385\f
3386/* Make sure the @stabs symbol is emitted. */
3387
3388static void
3389mark_stabs (ignore)
3390 int ignore;
3391{
3392 if (! stabs_seen)
3393 {
3394 /* Add a dummy @stabs dymbol. */
3395 stabs_seen = 1;
3396 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3397 (symbolS *) NULL,
8e3ff081
ILT		 3398 (bfd_vma) 0, (symint_t) -1,
3399 ECOFF_MARK_STAB (0));
9faec336
ILT		 3400 }
3401}
3402\f
d7b2038f
ILT		 3403/* Parse .weakext directives. */
3404
3405void
3406ecoff_directive_weakext (ignore)
3407 int ignore;
3408{
3409 char *name;
3410 int c;
3411 symbolS *symbolP;
3412 expressionS exp;
3413
3414 name = input_line_pointer;
3415 c = get_symbol_end ();
3416 symbolP = symbol_find_or_make (name);
3417 *input_line_pointer = c;
3418
3419 SKIP_WHITESPACE ();
3420
cfc71c6d 3421 if (*input_line_pointer == ',')
d7b2038f
ILT		 3422 {
3423 if (S_IS_DEFINED (symbolP))
3424 {
3425 as_bad ("Ignoring attempt to redefine symbol `%s'.",
3426 S_GET_NAME (symbolP));
3427 ignore_rest_of_line ();
3428 return;
3429 }
3430
3431 ++input_line_pointer;
3432 SKIP_WHITESPACE ();
3433 if (! is_end_of_line[(unsigned char) *input_line_pointer])
3434 {
3435 expression (&exp);
3436 if (exp.X_op != O_symbol)
3437 {
3438 as_bad ("bad .weakext directive");
3439 ignore_rest_of_line();
3440 return;
3441 }
3442 symbolP->sy_value = exp;
3443 }
3444 }
3445
3446 S_SET_WEAK (symbolP);
3447
3448 demand_empty_rest_of_line ();
3449}
3450\f
9faec336
ILT		 3451/* Handle .stabs directives. The actual parsing routine is done by a
3452 generic routine. This routine is called via OBJ_PROCESS_STAB.
3453 When this is called, input_line_pointer will be pointing at the
3454 value field of the stab.
3455
3456 .stabs directives have five fields:
3457 "string" a string, encoding the type information.
3458 code a numeric code, defined in <stab.h>
3459 0 a zero
3460 desc a zero or line number
3461 value a numeric value or an address.
3462
3463 If the value is relocatable, we transform this into:
3464 iss points as an index into string space
3465 value value from lookup of the name
3466 st st from lookup of the name
3467 sc sc from lookup of the name
3468 index code|CODE_MASK
3469
3470 If the value is not relocatable, we transform this into:
3471 iss points as an index into string space
3472 value value
3473 st st_Nil
3474 sc sc_Nil
3475 index code|CODE_MASK
3476
3477 .stabn directives have four fields (string is null):
3478 code a numeric code, defined in <stab.h>
3479 0 a zero
3480 desc a zero or a line number
3481 value a numeric value or an address. */
3482
3483void
22ba90ce
ILT		 3484ecoff_stab (sec, what, string, type, other, desc)
3485 segT sec;
9faec336
ILT		 3486 int what;
3487 const char *string;
3488 int type;
3489 int other;
3490 int desc;
3491{
3492 efdr_t *save_file_ptr = cur_file_ptr;
3493 symbolS *sym;
3494 symint_t value;
cfc71c6d 3495 bfd_vma addend;
9faec336
ILT		 3496 st_t st;
3497 sc_t sc;
3498 symint_t indx;
012353f7 3499 localsym_t *hold = NULL;
9faec336 3500
22ba90ce
ILT		 3501 ecoff_debugging_seen = 1;
3502
9faec336
ILT		 3503 /* We don't handle .stabd. */
3504 if (what != 's' && what != 'n')
3505 {
3506 as_bad (".stab%c is not supported", what);
3507 return;
3508 }
3509
3510 /* A .stabn uses a null name, not an empty string. */
3511 if (what == 'n')
3512 string = NULL;
3513
3514 /* We ignore the other field. */
3515 if (other != 0)
3516 as_warn (".stab%c: ignoring non-zero other field", what);
3517
3518 /* Make sure we have a current file. */
3519 if (cur_file_ptr == (efdr_t *) NULL)
3520 {
d7b2038f 3521 add_file ((const char *) NULL, 0, 1);
9faec336
ILT		 3522 save_file_ptr = cur_file_ptr;
3523 }
3524
3525 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3526 signal to gdb. */
3527 if (stabs_seen == 0)
3528 mark_stabs (0);
3529
3530 /* Line number stabs are handled differently, since they have two
3531 values, the line number and the address of the label. We use the
3532 index field (aka desc) to hold the line number, and the value
3533 field to hold the address. The symbol type is st_Label, which
3534 should be different from the other stabs, so that gdb can
3535 recognize it. */
3536 if (type == N_SLINE)
3537 {
3538 SYMR dummy_symr;
3539 char *name;
3540 char name_end;
3541
3542#ifndef NO_LISTING
3543 if (listing)
3544 listing_source_line ((unsigned int) desc);
3545#endif
3546
3547 dummy_symr.index = desc;
3548 if (dummy_symr.index != desc)
3549 {
3550 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3551 desc, what);
3552 return;
3553 }
3554
3555 name = input_line_pointer;
3556 name_end = get_symbol_end ();
3557
3558 sym = symbol_find_or_make (name);
3559 *input_line_pointer = name_end;
3560
3561 value = 0;
cfc71c6d 3562 addend = 0;
9faec336
ILT		 3563 st = st_Label;
3564 sc = sc_Text;
3565 indx = desc;
3566 }
3567 else
3568 {
3569#ifndef NO_LISTING
3570 if (listing && (type == N_SO || type == N_SOL))
3571 listing_source_file (string);
3572#endif
012353f7 3573
9faec336
ILT		 3574 if (isdigit (*input_line_pointer)
3575 || *input_line_pointer == '-'
3576 || *input_line_pointer == '+')
3577 {
3578 st = st_Nil;
3579 sc = sc_Nil;
3580 sym = (symbolS *) NULL;
3581 value = get_absolute_expression ();
cfc71c6d 3582 addend = 0;
9faec336
ILT		 3583 }
3584 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3585 {
3586 as_warn ("Illegal .stab%c directive, bad character", what);
3587 return;
3588 }
3589 else
3590 {
8e3ff081 3591 expressionS exp;
9faec336
ILT		 3592
3593 sc = sc_Nil;
3594 st = st_Nil;
9faec336 3595
cfc71c6d
ILT		 3596 expression (&exp);
3597 if (exp.X_op == O_constant)
3598 {
3599 sym = NULL;
3600 value = exp.X_add_number;
3601 addend = 0;
3602 }
3603 else if (exp.X_op == O_symbol)
8e3ff081 3604 {
cfc71c6d
ILT		 3605 sym = exp.X_add_symbol;
3606 value = 0;
3607 addend = exp.X_add_number;
8e3ff081
ILT		 3608 }
3609 else
9faec336 3610 {
0192b099 3611 sym = make_expr_symbol (&exp);
cfc71c6d
ILT		 3612 value = 0;
3613 addend = 0;
9faec336
ILT		 3614 }
3615 }
3616
3617 indx = ECOFF_MARK_STAB (type);
3618 }
3619
012353f7
KR		 3620 /* Don't store the stabs symbol we are creating as the type of the
3621 ECOFF symbol. We want to compute the type of the ECOFF symbol
3622 independently. */
3623 if (sym != (symbolS *) NULL)
3624 hold = sym->ecoff_symbol;
3625
cfc71c6d 3626 (void) add_ecoff_symbol (string, st, sc, sym, addend, value, indx);
9faec336 3627
012353f7
KR		 3628 if (sym != (symbolS *) NULL)
3629 sym->ecoff_symbol = hold;
3630
9faec336
ILT		 3631 /* Restore normal file type. */
3632 cur_file_ptr = save_file_ptr;
3633}
3634\f
f85ad9d5
ILT		 3635/* Frob an ECOFF symbol. Small common symbols go into a special
3636 .scommon section rather than bfd_com_section. */
c6858c1b
ILT		 3637
3638void
3639ecoff_frob_symbol (sym)
3640 symbolS *sym;
3641{
f85ad9d5 3642 if (S_IS_COMMON (sym)
8e3ff081
ILT		 3643 && S_GET_VALUE (sym) > 0
3644 && S_GET_VALUE (sym) <= bfd_get_gp_size (stdoutput))
c6858c1b
ILT		 3645 {
3646 static asection scom_section;
3647 static asymbol scom_symbol;
3648
3649 /* We must construct a fake section similar to bfd_com_section
3650 but with the name .scommon. */
3651 if (scom_section.name == NULL)
3652 {
3653 scom_section = bfd_com_section;
3654 scom_section.name = ".scommon";
3655 scom_section.output_section = &scom_section;
3656 scom_section.symbol = &scom_symbol;
3657 scom_section.symbol_ptr_ptr = &scom_section.symbol;
3658 scom_symbol = *bfd_com_section.symbol;
3659 scom_symbol.name = ".scommon";
3660 scom_symbol.section = &scom_section;
3661 }
3662 S_SET_SEGMENT (sym, &scom_section);
3663 }
8e3ff081
ILT		 3664
3665 /* Double check weak symbols. */
3666 if (sym->bsym->flags & BSF_WEAK)
3667 {
3668 if (S_IS_COMMON (sym))
3669 as_bad ("Symbol `%s' can not be both weak and common",
3670 S_GET_NAME (sym));
3671 }
c6858c1b
ILT		 3672}
3673\f
9faec336
ILT		 3674/* Add bytes to the symbolic information buffer. */
3675
3676static char *
3677ecoff_add_bytes (buf, bufend, bufptr, need)
3678 char **buf;
3679 char **bufend;
3680 char *bufptr;
3681 unsigned long need;
3682{
3683 unsigned long at;
3684 unsigned long want;
3685
3686 at = bufptr - *buf;
3687 need -= *bufend - bufptr;
3688 if (need < PAGE_SIZE)
3689 need = PAGE_SIZE;
3690 want = (*bufend - *buf) + need;
3691 *buf = xrealloc (*buf, want);
3692 *bufend = *buf + want;
3693 return *buf + at;
3694}
3695
3696/* Adjust the symbolic information buffer to the alignment required
3697 for the ECOFF target debugging information. */
3698
3699static unsigned long
3700ecoff_padding_adjust (backend, buf, bufend, offset, bufptrptr)
3701 const struct ecoff_debug_swap *backend;
3702 char **buf;
3703 char **bufend;
3704 unsigned long offset;
3705 char **bufptrptr;
3706{
3707 bfd_size_type align;
3708
3709 align = backend->debug_align;
3710 if ((offset & (align - 1)) != 0)
3711 {
3712 unsigned long add;
3713
3714 add = align - (offset & (align - 1));
3715 if (*bufend - (*buf + offset) < add)
3716 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3717 memset (*buf + offset, 0, add);
3718 offset += add;
3719 if (bufptrptr != (char **) NULL)
3720 *bufptrptr = *buf + offset;
3721 }
3722
3723 return offset;
3724}
3725
3726/* Build the line number information. */
3727
3728static unsigned long
3729ecoff_build_lineno (backend, buf, bufend, offset, linecntptr)
3730 const struct ecoff_debug_swap *backend;
3731 char **buf;
3732 char **bufend;
3733 unsigned long offset;
3734 long *linecntptr;
3735{
3736 char *bufptr;
3737 register lineno_list_t *l;
3738 lineno_list_t *last;
3739 efdr_t *file;
3740 proc_t *proc;
3741 unsigned long c;
3742 long iline;
3743 long totcount;
daad3bbf 3744 lineno_list_t first;
9faec336
ILT		 3745
3746 if (linecntptr != (long *) NULL)
3747 *linecntptr = 0;
3748
3749 bufptr = *buf + offset;
3750
3751 file = (efdr_t *) NULL;
3752 proc = (proc_t *) NULL;
3753 last = (lineno_list_t *) NULL;
3754 c = offset;
3755 iline = 0;
3756 totcount = 0;
daad3bbf
KH		 3757
3758 /* For some reason the address of the first procedure is ignored
3759 when reading line numbers. This doesn't matter if the address of
3760 the first procedure is 0, but when gcc is generating MIPS
3761 embedded PIC code, it will put strings in the .text section
3762 before the first procedure. We cope by inserting a dummy line if
3763 the address of the first procedure is not 0. Hopefully this
3764 won't screw things up too badly. */
3765 if (first_proc_ptr != (proc_t *) NULL
3766 && 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 = first_lineno->file;
3773 first.proc = first_lineno->proc;
3774 first.frag = &zero_address_frag;
3775 first.paddr = 0;
3776 first.lineno = 0;
3777
3778 first.next = first_lineno;
3779 first_lineno = &first;
3780 }
3781
9faec336
ILT		 3782 for (l = 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)
64d527f7
ILT		 3791 {
3792 /* We want a count of zero, but it will be decremented
3793 before it is used. */
3794 count = 1;
3795 }
c15ea23a
ILT		 3796 else if (l->next->frag->fr_address + l->next->paddr
3797 > l->frag->fr_address + l->paddr)
9faec336
ILT		 3798 {
3799 count = ((l->next->frag->fr_address + l->next->paddr
3800 - (l->frag->fr_address + l->paddr))
3801 >> 2);
c15ea23a
ILT		 3802 }
3803 else
3804 {
3805 /* Don't change last, so we still get the right delta. */
3806 continue;
9faec336
ILT		 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;
9faec336
ILT		 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 {
d7b2038f
ILT		 3824 efdr_t *last_file = file;
3825
9faec336 3826 file = l->file;
d7b2038f
ILT		 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;
9faec336
ILT		 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;
9faec336
ILT		 3841 proc->pdr.iline = totcount;
3842 }
3843 }
3844
3845 last = (lineno_list_t *) NULL;
012353f7 3846 }
9faec336
ILT		 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,
8e3ff081
ILT		 4051 S_GET_SEGMENT (as_sym))
4052 + sym_ptr->addend);
9faec336 4053
d7b2038f
ILT		 4054 sym_ptr->ecoff_sym.weakext = S_IS_WEAK (as_sym);
4055
9faec336
ILT		 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)
d7b2038f
ILT		 4060 && ! S_IS_EXTERNAL (as_sym)
4061 && ! S_IS_WEAK (as_sym))
9faec336
ILT		 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
012353f7
KR		 4082 if (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym.asym)
4083 && (S_IS_EXTERNAL (as_sym)
d7b2038f 4084 || S_IS_WEAK (as_sym)
012353f7 4085 || ! S_IS_DEFINED (as_sym)))
c1444ec4
ILT		 4086 {
4087 if ((as_sym->bsym->flags & BSF_FUNCTION) != 0)
4088 st = st_Proc;
4089 else
4090 st = st_Global;
4091 }
9faec336
ILT		 4092 else if (seg == text_section)
4093 st = st_Label;
4094 else
4095 st = st_Static;
4096
f85ad9d5 4097 if (! S_IS_DEFINED (as_sym))
9faec336 4098 {
f85ad9d5
ILT		 4099 if (as_sym->ecoff_extern_size == 0
4100 || (as_sym->ecoff_extern_size
4101 > bfd_get_gp_size (stdoutput)))
9faec336 4102 sc = sc_Undefined;
f85ad9d5
ILT		 4103 else
4104 {
4105 sc = sc_SUndefined;
4106 sym_ptr->ecoff_sym.asym.value =
4107 as_sym->ecoff_extern_size;
4108 }
c15ea23a
ILT		 4109#ifdef S_SET_SIZE
4110 S_SET_SIZE (as_sym, as_sym->ecoff_extern_size);
4111#endif
9faec336
ILT		 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
9da4c5d1
ILT		 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 }
9faec336
ILT		 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)
d7b2038f 4156 || S_IS_WEAK (as_sym)
9faec336
ILT		 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
0192b099
ILT		 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
9faec336
ILT		 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));
0192b099
ILT		 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
c15ea23a
ILT		 4240#ifdef S_SET_SIZE
4241 S_SET_SIZE (begin_ptr->as_sym,
4242 sym_ptr->ecoff_sym.asym.value);
4243#endif
9faec336
ILT		 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. */
012353f7
KR		 4292 if (as_sym != (symbolS *) NULL
4293 && as_sym->ecoff_symbol == sym_ptr)
9faec336 4294 {
c1444ec4
ILT		 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;
9faec336
ILT		 4299 sym_ptr->ecoff_sym.ifd = fil_ptr->file_index;
4300 }
4301 }
4302 }
4303 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4304 }
4305 }
4306
4307 return offset + isym * external_sym_size;
4308}
4309
4310/* Swap out the procedure information. */
4311
4312static unsigned long
4313ecoff_build_procs (backend, buf, bufend, offset)
4314 const struct ecoff_debug_swap *backend;
4315 char **buf;
4316 char **bufend;
4317 unsigned long offset;
4318{
4319 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4320 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4321 = backend->swap_pdr_out;
4322 char *pdr_out;
9faec336
ILT		 4323 long iproc;
4324 vlinks_t *file_link;
4325
4326 pdr_out = *buf + offset;
012353f7 4327
9faec336
ILT		 4328 iproc = 0;
4329
4330 /* The procedures are stored by file. */
4331 for (file_link = file_desc.first;
4332 file_link != (vlinks_t *) NULL;
4333 file_link = file_link->next)
4334 {
4335 int fil_cnt;
4336 efdr_t *fil_ptr;
4337 efdr_t *fil_end;
4338
4339 if (file_link->next == (vlinks_t *) NULL)
4340 fil_cnt = file_desc.objects_last_page;
4341 else
4342 fil_cnt = file_desc.objects_per_page;
4343 fil_ptr = file_link->datum->file;
4344 fil_end = fil_ptr + fil_cnt;
4345 for (; fil_ptr < fil_end; fil_ptr++)
4346 {
4347 vlinks_t *proc_link;
4348 int first;
4349
4350 fil_ptr->fdr.ipdFirst = iproc;
4351 first = 1;
4352 for (proc_link = fil_ptr->procs.first;
4353 proc_link != (vlinks_t *) NULL;
4354 proc_link = proc_link->next)
4355 {
4356 int prc_cnt;
4357 proc_t *proc_ptr;
4358 proc_t *proc_end;
4359
4360 if (proc_link->next == (vlinks_t *) NULL)
4361 prc_cnt = fil_ptr->procs.objects_last_page;
4362 else
4363 prc_cnt = fil_ptr->procs.objects_per_page;
4364 proc_ptr = proc_link->datum->proc;
4365 proc_end = proc_ptr + prc_cnt;
4366 for (; proc_ptr < proc_end; proc_ptr++)
4367 {
4368 symbolS *adr_sym;
4369 unsigned long adr;
4370
4371 adr_sym = proc_ptr->sym->as_sym;
4372 adr = (S_GET_VALUE (adr_sym)
4373 + bfd_get_section_vma (stdoutput,
4374 S_GET_SEGMENT (adr_sym)));
4375 if (first)
4376 {
a2a1a548
ILT		 4377 /* This code used to force the adr of the very
4378 first fdr to be 0. However, the native tools
4379 don't do that, and I can't remember why it
4380 used to work that way, so I took it out. */
4381 fil_ptr->fdr.adr = adr;
9faec336
ILT		 4382 first = 0;
4383 }
4384 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4385 if (*bufend - pdr_out < external_pdr_size)
4386 pdr_out = ecoff_add_bytes (buf, bufend,
4387 pdr_out,
4388 external_pdr_size);
4389 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4390 pdr_out += external_pdr_size;
4391 ++iproc;
4392 }
4393 }
4394 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4395 }
4396 }
4397
4398 return offset + iproc * external_pdr_size;
4399}
4400
4401/* Swap out the aux information. */
4402
4403static unsigned long
4404ecoff_build_aux (backend, buf, bufend, offset)
4405 const struct ecoff_debug_swap *backend;
4406 char **buf;
4407 char **bufend;
4408 unsigned long offset;
4409{
4410 int bigendian;
4411 union aux_ext *aux_out;
4412 long iaux;
4413 vlinks_t *file_link;
4414
8e3ff081 4415 bigendian = bfd_big_endian (stdoutput);
9faec336
ILT		 4416
4417 aux_out = (union aux_ext *) (*buf + offset);
012353f7 4418
9faec336
ILT		 4419 iaux = 0;
4420
4421 /* The aux entries are stored by file. */
4422 for (file_link = file_desc.first;
4423 file_link != (vlinks_t *) NULL;
4424 file_link = file_link->next)
4425 {
4426 int fil_cnt;
4427 efdr_t *fil_ptr;
4428 efdr_t *fil_end;
4429
4430 if (file_link->next == (vlinks_t *) NULL)
4431 fil_cnt = file_desc.objects_last_page;
4432 else
4433 fil_cnt = file_desc.objects_per_page;
4434 fil_ptr = file_link->datum->file;
4435 fil_end = fil_ptr + fil_cnt;
4436 for (; fil_ptr < fil_end; fil_ptr++)
4437 {
4438 vlinks_t *aux_link;
4439
4440 fil_ptr->fdr.fBigendian = bigendian;
4441 fil_ptr->fdr.iauxBase = iaux;
4442 for (aux_link = fil_ptr->aux_syms.first;
4443 aux_link != (vlinks_t *) NULL;
4444 aux_link = aux_link->next)
4445 {
4446 int aux_cnt;
4447 aux_t *aux_ptr;
4448 aux_t *aux_end;
4449
4450 if (aux_link->next == (vlinks_t *) NULL)
4451 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4452 else
4453 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4454 aux_ptr = aux_link->datum->aux;
4455 aux_end = aux_ptr + aux_cnt;
4456 for (; aux_ptr < aux_end; aux_ptr++)
4457 {
4458 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4459 aux_out = ((union aux_ext *)
4460 ecoff_add_bytes (buf, bufend,
4461 (char *) aux_out,
4462 sizeof (union aux_ext)));
4463 switch (aux_ptr->type)
4464 {
4465 case aux_tir:
daad3bbf
KH		 4466 (*backend->swap_tir_out) (bigendian,
4467 &aux_ptr->data.ti,
4468 &aux_out->a_ti);
9faec336
ILT		 4469 break;
4470 case aux_rndx:
daad3bbf
KH		 4471 (*backend->swap_rndx_out) (bigendian,
4472 &aux_ptr->data.rndx,
4473 &aux_out->a_rndx);
9faec336
ILT		 4474 break;
4475 case aux_dnLow:
4476 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4477 aux_out);
4478 break;
4479 case aux_dnHigh:
4480 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4481 aux_out);
4482 break;
4483 case aux_isym:
4484 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4485 aux_out);
4486 break;
4487 case aux_iss:
4488 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4489 aux_out);
4490 break;
4491 case aux_width:
4492 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4493 aux_out);
4494 break;
4495 case aux_count:
4496 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4497 aux_out);
4498 break;
4499 }
4500
4501 ++aux_out;
4502 ++iaux;
4503 }
4504 }
4505 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4506 }
4507 }
4508
4509 return ecoff_padding_adjust (backend, buf, bufend,
4510 offset + iaux * sizeof (union aux_ext),
4511 (char **) NULL);
4512}
4513
4514/* Copy out the strings from a varray_t. This returns the number of
4515 bytes copied, rather than the new offset. */
4516
4517static unsigned long
4518ecoff_build_strings (buf, bufend, offset, vp)
4519 char **buf;
4520 char **bufend;
4521 unsigned long offset;
4522 varray_t *vp;
4523{
4524 unsigned long istr;
4525 char *str_out;
4526 vlinks_t *str_link;
4527
4528 str_out = *buf + offset;
4529
4530 istr = 0;
4531
4532 for (str_link = vp->first;
4533 str_link != (vlinks_t *) NULL;
4534 str_link = str_link->next)
4535 {
4536 unsigned long str_cnt;
4537
4538 if (str_link->next == (vlinks_t *) NULL)
4539 str_cnt = vp->objects_last_page;
4540 else
4541 str_cnt = vp->objects_per_page;
4542
4543 if (*bufend - str_out < str_cnt)
4544 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4545
4546 memcpy (str_out, str_link->datum->byte, str_cnt);
4547 str_out += str_cnt;
4548 istr += str_cnt;
4549 }
4550
4551 return istr;
4552}
4553
4554/* Dump out the local strings. */
4555
4556static unsigned long
4557ecoff_build_ss (backend, buf, bufend, offset)
4558 const struct ecoff_debug_swap *backend;
4559 char **buf;
4560 char **bufend;
4561 unsigned long offset;
4562{
4563 long iss;
4564 vlinks_t *file_link;
4565
4566 iss = 0;
4567
4568 for (file_link = file_desc.first;
4569 file_link != (vlinks_t *) NULL;
4570 file_link = file_link->next)
4571 {
4572 int fil_cnt;
4573 efdr_t *fil_ptr;
4574 efdr_t *fil_end;
4575
4576 if (file_link->next == (vlinks_t *) NULL)
4577 fil_cnt = file_desc.objects_last_page;
4578 else
4579 fil_cnt = file_desc.objects_per_page;
4580 fil_ptr = file_link->datum->file;
4581 fil_end = fil_ptr + fil_cnt;
4582 for (; fil_ptr < fil_end; fil_ptr++)
4583 {
4584 long ss_cnt;
4585
4586 fil_ptr->fdr.issBase = iss;
4587 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4588 &fil_ptr->strings);
4589 fil_ptr->fdr.cbSs = ss_cnt;
4590 iss += ss_cnt;
4591 }
4592 }
4593
4594 return ecoff_padding_adjust (backend, buf, bufend, offset + iss,
4595 (char **) NULL);
4596}
4597
4598/* Swap out the file descriptors. */
4599
4600static unsigned long
4601ecoff_build_fdr (backend, buf, bufend, offset)
4602 const struct ecoff_debug_swap *backend;
4603 char **buf;
4604 char **bufend;
4605 unsigned long offset;
4606{
4607 const bfd_size_type external_fdr_size = backend->external_fdr_size;
4608 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4609 = backend->swap_fdr_out;
4610 long ifile;
4611 char *fdr_out;
4612 vlinks_t *file_link;
4613
4614 ifile = 0;
4615
4616 fdr_out = *buf + offset;
4617
4618 for (file_link = file_desc.first;
4619 file_link != (vlinks_t *) NULL;
4620 file_link = file_link->next)
4621 {
4622 int fil_cnt;
4623 efdr_t *fil_ptr;
4624 efdr_t *fil_end;
4625
4626 if (file_link->next == (vlinks_t *) NULL)
4627 fil_cnt = file_desc.objects_last_page;
4628 else
4629 fil_cnt = file_desc.objects_per_page;
4630 fil_ptr = file_link->datum->file;
4631 fil_end = fil_ptr + fil_cnt;
4632 for (; fil_ptr < fil_end; fil_ptr++)
4633 {
4634 if (*bufend - fdr_out < external_fdr_size)
4635 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4636 external_fdr_size);
4637 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4638 fdr_out += external_fdr_size;
4639 ++ifile;
4640 }
4641 }
4642
4643 return offset + ifile * external_fdr_size;
4644}
4645
012353f7
KR		 4646/* Set up the external symbols. These are supposed to be handled by
4647 the backend. This routine just gets the right information and
4648 calls a backend function to deal with it. */
9faec336 4649
012353f7
KR		 4650static void
4651ecoff_setup_ext ()
9faec336 4652{
9faec336 4653 register symbolS *sym;
9faec336 4654
9faec336
ILT		 4655 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4656 {
4657 if (sym->ecoff_symbol == NULL)
4658 continue;
4659
4660 /* If this is a local symbol, then force the fields to zero. */
4661 if (! S_IS_EXTERNAL (sym)
d7b2038f 4662 && ! S_IS_WEAK (sym)
9faec336
ILT		 4663 && S_IS_DEFINED (sym))
4664 {
4665 sym->ecoff_symbol->ecoff_sym.asym.value = 0;
4666 sym->ecoff_symbol->ecoff_sym.asym.st = (int) st_Nil;
4667 sym->ecoff_symbol->ecoff_sym.asym.sc = (int) sc_Nil;
4668 sym->ecoff_symbol->ecoff_sym.asym.index = indexNil;
4669 }
4670
012353f7 4671 obj_ecoff_set_ext (sym, &sym->ecoff_symbol->ecoff_sym);
9faec336 4672 }
9faec336
ILT		 4673}
4674
d7b2038f 4675/* Build the ECOFF debugging information. */
9faec336
ILT		 4676
4677unsigned long
4678ecoff_build_debug (hdr, bufp, backend)
4679 HDRR *hdr;
4680 char **bufp;
4681 const struct ecoff_debug_swap *backend;
4682{
4683 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4684 tag_t *ptag;
4685 tag_t *ptag_next;
4686 efdr_t *fil_ptr;
4687 int end_warning;
4688 efdr_t *hold_file_ptr;
4689 proc_t * hold_proc_ptr;
4690 symbolS *sym;
4691 char *buf;
4692 char *bufend;
4693 unsigned long offset;
9faec336
ILT		 4694
4695 /* Make sure we have a file. */
4696 if (first_file == (efdr_t *) NULL)
d7b2038f 4697 add_file ((const char *) NULL, 0, 1);
9faec336
ILT		 4698
4699 /* Handle any top level tags. */
4700 for (ptag = top_tag_head->first_tag;
4701 ptag != (tag_t *) NULL;
4702 ptag = ptag_next)
4703 {
4704 if (ptag->forward_ref != (forward_t *) NULL)
4705 add_unknown_tag (ptag);
4706
4707 ptag_next = ptag->same_block;
4708 ptag->hash_ptr->tag_ptr = ptag->same_name;
4709 free_tag (ptag);
4710 }
4711
4712 free_thead (top_tag_head);
4713
4714 /* Look through the symbols. Add debugging information for each
4715 symbol that has not already received it. */
4716 hold_file_ptr = cur_file_ptr;
4717 hold_proc_ptr = cur_proc_ptr;
4718 cur_proc_ptr = (proc_t *) NULL;
4719 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4720 {
4721 if (sym->ecoff_symbol != NULL
4722 || sym->ecoff_file == (efdr_t *) NULL
4723 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4724 continue;
4725
4726 cur_file_ptr = sym->ecoff_file;
4727 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
8e3ff081 4728 (bfd_vma) 0, S_GET_VALUE (sym), indexNil);
9faec336
ILT		 4729 }
4730 cur_proc_ptr = hold_proc_ptr;
4731 cur_file_ptr = hold_file_ptr;
4732
4733 /* Output an ending symbol for all the files. We have to do this
4734 here for the last file, so we may as well do it for all of the
4735 files. */
4736 end_warning = 0;
4737 for (fil_ptr = first_file;
4738 fil_ptr != (efdr_t *) NULL;
4739 fil_ptr = fil_ptr->next_file)
4740 {
4741 cur_file_ptr = fil_ptr;
22ba90ce
ILT		 4742 while (cur_file_ptr->cur_scope != (scope_t *) NULL
4743 && cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
9faec336
ILT		 4744 {
4745 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
d7b2038f 4746 if (! end_warning && ! cur_file_ptr->fake)
9faec336
ILT		 4747 {
4748 as_warn ("Missing .end or .bend at end of file");
4749 end_warning = 1;
4750 }
4751 }
22ba90ce
ILT		 4752 if (cur_file_ptr->cur_scope != (scope_t *) NULL)
4753 (void) add_ecoff_symbol ((const char *) NULL,
4754 st_End, sc_Text,
4755 (symbolS *) NULL,
8e3ff081 4756 (bfd_vma) 0,
22ba90ce
ILT		 4757 (symint_t) 0,
4758 (symint_t) 0);
9faec336
ILT		 4759 }
4760
4761 /* Build the symbolic information. */
4762 offset = 0;
4763 buf = xmalloc (PAGE_SIZE);
4764 bufend = buf + PAGE_SIZE;
4765
4766 /* Build the line number information. */
4767 hdr->cbLineOffset = offset;
4768 offset = ecoff_build_lineno (backend, &buf, &bufend, offset,
4769 &hdr->ilineMax);
4770 hdr->cbLine = offset - hdr->cbLineOffset;
4771
4772 /* We don't use dense numbers at all. */
4773 hdr->idnMax = 0;
4774 hdr->cbDnOffset = 0;
4775
4776 /* We can't build the PDR table until we have built the symbols,
4777 because a PDR contains a symbol index. However, we set aside
4778 space at this point. */
4779 hdr->ipdMax = proc_cnt;
4780 hdr->cbPdOffset = offset;
4781 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4782 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4783 proc_cnt * external_pdr_size);
4784 offset += proc_cnt * external_pdr_size;
4785
4786 /* Build the local symbols. */
4787 hdr->cbSymOffset = offset;
4788 offset = ecoff_build_symbols (backend, &buf, &bufend, offset);
4789 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4790
4791 /* Building the symbols initializes the symbol index in the PDR's.
4792 Now we can swap out the PDR's. */
4793 (void) ecoff_build_procs (backend, &buf, &bufend, hdr->cbPdOffset);
4794
4795 /* We don't use optimization symbols. */
4796 hdr->ioptMax = 0;
4797 hdr->cbOptOffset = 0;
4798
4799 /* Swap out the auxiliary type information. */
4800 hdr->cbAuxOffset = offset;
4801 offset = ecoff_build_aux (backend, &buf, &bufend, offset);
4802 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4803
4804 /* Copy out the local strings. */
4805 hdr->cbSsOffset = offset;
4806 offset = ecoff_build_ss (backend, &buf, &bufend, offset);
4807 hdr->issMax = offset - hdr->cbSsOffset;
4808
9faec336
ILT		 4809 /* We don't use relative file descriptors. */
4810 hdr->crfd = 0;
4811 hdr->cbRfdOffset = 0;
4812
4813 /* Swap out the file descriptors. */
4814 hdr->cbFdOffset = offset;
4815 offset = ecoff_build_fdr (backend, &buf, &bufend, offset);
4816 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4817
012353f7
KR		 4818 /* Set up the external symbols, which are handled by the BFD back
4819 end. */
4820 hdr->issExtMax = 0;
4821 hdr->cbSsExtOffset = 0;
4822 hdr->iextMax = 0;
4823 hdr->cbExtOffset = 0;
4824 ecoff_setup_ext ();
9faec336
ILT		 4825
4826 know ((offset & (backend->debug_align - 1)) == 0);
4827
daad3bbf
KH		 4828 /* FIXME: This value should be determined from the .verstamp directive,
4829 with reasonable defaults in config files. */
4830#ifdef TC_ALPHA
4831 hdr->vstamp = 0x030b;
4832#else
9faec336 4833 hdr->vstamp = 0x020b;
daad3bbf 4834#endif
9faec336
ILT		 4835
4836 *bufp = buf;
4837 return offset;
4838}
4839\f
4840/* Allocate a cluster of pages. */
4841
4842#ifndef MALLOC_CHECK
4843
db3152ef 4844static page_type *
9faec336
ILT		 4845allocate_cluster (npages)
4846 unsigned long npages;
4847{
db3152ef 4848 register page_type *value = (page_type *) xmalloc (npages * PAGE_USIZE);
9faec336
ILT		 4849
4850#ifdef ECOFF_DEBUG
4851 if (debug > 3)
4852 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4853#endif
4854
4855 memset (value, 0, npages * PAGE_USIZE);
4856
4857 return value;
4858}
4859
4860
db3152ef 4861static page_type *cluster_ptr = NULL;
9faec336
ILT		 4862static unsigned long pages_left = 0;
4863
4864#endif /* MALLOC_CHECK */
4865
4866/* Allocate one page (which is initialized to 0). */
4867
db3152ef 4868static page_type *
9faec336
ILT		 4869allocate_page ()
4870{
4871#ifndef MALLOC_CHECK
4872
4873 if (pages_left == 0)
4874 {
4875 pages_left = MAX_CLUSTER_PAGES;
4876 cluster_ptr = allocate_cluster (pages_left);
4877 }
4878
4879 pages_left--;
4880 return cluster_ptr++;
4881
4882#else /* MALLOC_CHECK */
4883
db3152ef 4884 page_type *ptr;
9faec336
ILT		 4885
4886 ptr = xmalloc (PAGE_USIZE);
4887 memset (ptr, 0, PAGE_USIZE);
4888 return ptr;
4889
4890#endif /* MALLOC_CHECK */
4891}
4892\f
4893/* Allocate scoping information. */
4894
4895static scope_t *
4896allocate_scope ()
4897{
4898 register scope_t *ptr;
4899 static scope_t initial_scope;
4900
4901#ifndef MALLOC_CHECK
4902
4903 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4904 if (ptr != (scope_t *) NULL)
4905 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4906 else
4907 {
4908 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
db3152ef 4909 register page_type *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
9faec336
ILT		 4910
4911 if (unallocated == 0)
4912 {
4913 unallocated = PAGE_SIZE / sizeof (scope_t);
4914 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4915 alloc_counts[(int)alloc_type_scope].total_pages++;
4916 }
4917
4918 ptr = &cur_page->scope[--unallocated];
4919 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4920 }
4921
4922#else
4923
4924 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4925
4926#endif
4927
4928 alloc_counts[(int)alloc_type_scope].total_alloc++;
4929 *ptr = initial_scope;
4930 return ptr;
4931}
4932
4933/* Free scoping information. */
4934
4935static void
4936free_scope (ptr)
4937 scope_t *ptr;
4938{
4939 alloc_counts[(int)alloc_type_scope].total_free++;
4940
4941#ifndef MALLOC_CHECK
4942 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4943 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4944#else
4945 free ((PTR) ptr);
4946#endif
4947}
4948\f
4949/* Allocate links for pages in a virtual array. */
4950
4951static vlinks_t *
4952allocate_vlinks ()
4953{
4954 register vlinks_t *ptr;
4955 static vlinks_t initial_vlinks;
4956
4957#ifndef MALLOC_CHECK
4958
4959 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
db3152ef 4960 register page_type *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
9faec336
ILT		 4961
4962 if (unallocated == 0)
4963 {
4964 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4965 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4966 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4967 }
4968
4969 ptr = &cur_page->vlinks[--unallocated];
4970 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4971
4972#else
4973
4974 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4975
4976#endif
4977
4978 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4979 *ptr = initial_vlinks;
4980 return ptr;
4981}
4982\f
4983/* Allocate string hash buckets. */
4984
4985static shash_t *
4986allocate_shash ()
4987{
4988 register shash_t *ptr;
4989 static shash_t initial_shash;
4990
4991#ifndef MALLOC_CHECK
4992
4993 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
db3152ef 4994 register page_type *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
9faec336
ILT		 4995
4996 if (unallocated == 0)
4997 {
4998 unallocated = PAGE_SIZE / sizeof (shash_t);
4999 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
5000 alloc_counts[(int)alloc_type_shash].total_pages++;
5001 }
5002
5003 ptr = &cur_page->shash[--unallocated];
5004 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
5005
5006#else
5007
5008 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5009
5010#endif
5011
5012 alloc_counts[(int)alloc_type_shash].total_alloc++;
5013 *ptr = initial_shash;
5014 return ptr;
5015}
5016\f
5017/* Allocate type hash buckets. */
5018
5019static thash_t *
5020allocate_thash ()
5021{
5022 register thash_t *ptr;
5023 static thash_t initial_thash;
5024
5025#ifndef MALLOC_CHECK
5026
5027 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
db3152ef 5028 register page_type *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
9faec336
ILT		 5029
5030 if (unallocated == 0)
5031 {
5032 unallocated = PAGE_SIZE / sizeof (thash_t);
5033 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
5034 alloc_counts[(int)alloc_type_thash].total_pages++;
5035 }
5036
5037 ptr = &cur_page->thash[--unallocated];
5038 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
5039
5040#else
5041
5042 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5043
5044#endif
5045
5046 alloc_counts[(int)alloc_type_thash].total_alloc++;
5047 *ptr = initial_thash;
5048 return ptr;
5049}
5050\f
5051/* Allocate structure, union, or enum tag information. */
5052
5053static tag_t *
5054allocate_tag ()
5055{
5056 register tag_t *ptr;
5057 static tag_t initial_tag;
5058
5059#ifndef MALLOC_CHECK
5060
5061 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5062 if (ptr != (tag_t *) NULL)
5063 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
5064 else
5065 {
5066 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
db3152ef 5067 register page_type *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
9faec336
ILT		 5068
5069 if (unallocated == 0)
5070 {
5071 unallocated = PAGE_SIZE / sizeof (tag_t);
5072 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
5073 alloc_counts[(int)alloc_type_tag].total_pages++;
5074 }
5075
5076 ptr = &cur_page->tag[--unallocated];
5077 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
5078 }
5079
5080#else
5081
5082 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5083
5084#endif
5085
5086 alloc_counts[(int)alloc_type_tag].total_alloc++;
5087 *ptr = initial_tag;
5088 return ptr;
5089}
5090
5091/* Free scoping information. */
5092
5093static void
5094free_tag (ptr)
5095 tag_t *ptr;
5096{
5097 alloc_counts[(int)alloc_type_tag].total_free++;
5098
5099#ifndef MALLOC_CHECK
5100 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
5101 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
5102#else
5103 free ((PTR_T) ptr);
5104#endif
5105}
5106\f
5107/* Allocate forward reference to a yet unknown tag. */
5108
5109static forward_t *
5110allocate_forward ()
5111{
5112 register forward_t *ptr;
5113 static forward_t initial_forward;
5114
5115#ifndef MALLOC_CHECK
5116
5117 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
db3152ef 5118 register page_type *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
9faec336
ILT		 5119
5120 if (unallocated == 0)
5121 {
5122 unallocated = PAGE_SIZE / sizeof (forward_t);
5123 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
5124 alloc_counts[(int)alloc_type_forward].total_pages++;
5125 }
5126
5127 ptr = &cur_page->forward[--unallocated];
5128 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
5129
5130#else
5131
5132 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5133
5134#endif
5135
5136 alloc_counts[(int)alloc_type_forward].total_alloc++;
5137 *ptr = initial_forward;
5138 return ptr;
5139}
5140\f
5141/* Allocate head of type hash list. */
5142
5143static thead_t *
5144allocate_thead ()
5145{
5146 register thead_t *ptr;
5147 static thead_t initial_thead;
5148
5149#ifndef MALLOC_CHECK
5150
5151 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5152 if (ptr != (thead_t *) NULL)
5153 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5154 else
5155 {
5156 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
db3152ef 5157 register page_type *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
9faec336
ILT		 5158
5159 if (unallocated == 0)
5160 {
5161 unallocated = PAGE_SIZE / sizeof (thead_t);
5162 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
5163 alloc_counts[(int)alloc_type_thead].total_pages++;
5164 }
5165
5166 ptr = &cur_page->thead[--unallocated];
5167 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
5168 }
5169
5170#else
5171
5172 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5173
5174#endif
5175
5176 alloc_counts[(int)alloc_type_thead].total_alloc++;
5177 *ptr = initial_thead;
5178 return ptr;
5179}
5180
5181/* Free scoping information. */
5182
5183static void
5184free_thead (ptr)
5185 thead_t *ptr;
5186{
5187 alloc_counts[(int)alloc_type_thead].total_free++;
5188
5189#ifndef MALLOC_CHECK
5190 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
5191 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
5192#else
5193 free ((PTR_T) ptr);
5194#endif
5195}
5196\f
5197static lineno_list_t *
5198allocate_lineno_list ()
5199{
5200 register lineno_list_t *ptr;
5201 static lineno_list_t initial_lineno_list;
5202
5203#ifndef MALLOC_CHECK
5204
5205 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
db3152ef 5206 register page_type *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
9faec336
ILT		 5207
5208 if (unallocated == 0)
5209 {
5210 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
5211 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5212 alloc_counts[(int)alloc_type_lineno].total_pages++;
5213 }
5214
5215 ptr = &cur_page->lineno[--unallocated];
5216 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5217
5218#else
5219
5220 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5221
5222#endif
5223
5224 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5225 *ptr = initial_lineno_list;
5226 return ptr;
5227}
5228
17ed84ed 5229void
012353f7
KR		 5230ecoff_set_gp_prolog_size (sz)
5231 int sz;
5232{
5233 if (cur_proc_ptr == 0)
22ba90ce 5234 return;
012353f7
KR		 5235
5236 cur_proc_ptr->pdr.gp_prologue = sz;
5237 if (cur_proc_ptr->pdr.gp_prologue != sz)
5238 {
5239 as_warn ("GP prologue size exceeds field size, using 0 instead");
5240 cur_proc_ptr->pdr.gp_prologue = 0;
5241 }
5242
5243 cur_proc_ptr->pdr.gp_used = 1;
5244}
5245
daad3bbf
KH		 5246static void
5247generate_ecoff_stab (what, string, type, other, desc)
5248 int what;
5249 const char *string;
5250 int type;
5251 int other;
5252 int desc;
5253{
5254 efdr_t *save_file_ptr = cur_file_ptr;
5255 symbolS *sym;
5256 symint_t value;
5257 st_t st;
5258 sc_t sc;
5259 symint_t indx;
5260 localsym_t *hold = NULL;
5261
5262 /* We don't handle .stabd. */
5263 if (what != 's' && what != 'n')
5264 {
5265 as_bad (".stab%c is not supported", what);
5266 return;
5267 }
5268
5269 /* We ignore the other field. */
5270 if (other != 0)
5271 as_warn (".stab%c: ignoring non-zero other field", what);
5272
5273 /* Make sure we have a current file. */
5274 if (cur_file_ptr == (efdr_t *) NULL)
5275 {
d7b2038f 5276 add_file ((const char *) NULL, 0, 1);
daad3bbf
KH		 5277 save_file_ptr = cur_file_ptr;
5278 }
5279
5280 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
5281 signal to gdb. */
5282 if (stabs_seen == 0)
5283 mark_stabs (0);
5284
5285 /* Line number stabs are handled differently, since they have two
5286 values, the line number and the address of the label. We use the
5287 index field (aka desc) to hold the line number, and the value
5288 field to hold the address. The symbol type is st_Label, which
5289 should be different from the other stabs, so that gdb can
5290 recognize it. */
5291 if (type == N_SLINE)
5292 {
5293 SYMR dummy_symr;
5294
5295#ifndef NO_LISTING
5296 if (listing)
5297 listing_source_line ((unsigned int) desc);
5298#endif
5299
5300 dummy_symr.index = desc;
5301 if (dummy_symr.index != desc)
5302 {
5303 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
5304 desc, what);
5305 return;
5306 }
5307
5308 sym = symbol_find_or_make ((char *)string);
5309 value = 0;
5310 st = st_Label;
5311 sc = sc_Text;
5312 indx = desc;
5313 }
5314 else
5315 {
5316#ifndef NO_LISTING
5317 if (listing && (type == N_SO || type == N_SOL))
5318 listing_source_file (string);
5319#endif
5320
5321 sym = symbol_find_or_make ((char *)string);
5322 sc = sc_Nil;
5323 st = st_Nil;
5324 value = 0;
5325 indx = ECOFF_MARK_STAB (type);
5326 }
5327
5328 /* Don't store the stabs symbol we are creating as the type of the
5329 ECOFF symbol. We want to compute the type of the ECOFF symbol
5330 independently. */
5331 if (sym != (symbolS *) NULL)
5332 hold = sym->ecoff_symbol;
5333
8e3ff081 5334 (void) add_ecoff_symbol (string, st, sc, sym, (bfd_vma) 0, value, indx);
daad3bbf
KH		 5335
5336 if (sym != (symbolS *) NULL)
5337 sym->ecoff_symbol = hold;
5338
5339 /* Restore normal file type. */
5340 cur_file_ptr = save_file_ptr;
5341}
5342
326d16ca
KH		 5343int
5344ecoff_no_current_file ()
5345{
5346 return cur_file_ptr == (efdr_t *) NULL;
5347}
5348
5349void
5350ecoff_generate_asm_lineno (filename, lineno)
22ba90ce
ILT		 5351 const char *filename;
5352 int lineno;
326d16ca
KH		 5353{
5354 lineno_list_t *list;
5355
5356 /* this potential can cause problem, when we start to see stab half the
5357 way thru the file */
5358/*
5359 if (stabs_seen)
5360 ecoff_generate_asm_line_stab(filename, lineno);
5361*/
5362
9da4c5d1 5363 if (current_stabs_filename == (char *)NULL || strcmp (current_stabs_filename, filename))
326d16ca 5364 {
d7b2038f 5365 add_file (filename, 0, 1);
326d16ca
KH		 5366 generate_asm_lineno = 1;
5367 }
5368
5369 list = allocate_lineno_list ();
5370
5371 list->next = (lineno_list_t *) NULL;
5372 list->file = cur_file_ptr;
5373 list->proc = cur_proc_ptr;
5374 list->frag = frag_now;
5375 list->paddr = frag_now_fix ();
5376 list->lineno = lineno;
5377
cfc71c6d
ILT		 5378 /* We don't want to merge files which have line numbers. */
5379 cur_file_ptr->fdr.fMerge = 0;
5380
326d16ca
KH		 5381 /* A .loc directive will sometimes appear before a .ent directive,
5382 which means that cur_proc_ptr will be NULL here. Arrange to
5383 patch this up. */
5384 if (cur_proc_ptr == (proc_t *) NULL)
5385 {
5386 lineno_list_t **pl;
5387
5388 pl = &noproc_lineno;
5389 while (*pl != (lineno_list_t *) NULL)
5390 pl = &(*pl)->next;
5391 *pl = list;
5392 }
5393 else
5394 {
cfc71c6d 5395 last_lineno = list;
326d16ca
KH		 5396 *last_lineno_ptr = list;
5397 last_lineno_ptr = &list->next;
5398 }
5399}
5400
daad3bbf
KH		 5401static int line_label_cnt = 0;
5402void
a2a1a548
ILT		 5403ecoff_generate_asm_line_stab (filename, lineno)
5404 char *filename;
daad3bbf
KH		 5405 int lineno;
5406{
5407 char *ll;
5408
a2a1a548
ILT		 5409 if (strcmp (current_stabs_filename, filename))
5410 {
d7b2038f 5411 add_file (filename, 0, 1);
326d16ca 5412 generate_asm_lineno = 1;
a2a1a548
ILT		 5413 }
5414
daad3bbf
KH		 5415 line_label_cnt++;
5416 /* generate local label $LMnn */
5417 ll = xmalloc(10);
5418 sprintf(ll, "$LM%d", line_label_cnt);
5419 colon (ll);
5420
5421 /* generate stab for the line */
5422 generate_ecoff_stab ('n', ll, N_SLINE, 0, lineno);
5423
5424}
5425
9faec336 5426#endif /* ECOFF_DEBUGGING */
GDB Binutils - Deliverables
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