]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - gas/config/obj-ecoff.c
projects / thirdparty / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
* config/tc-mips.c (mips_gprmask, mips_cprmask): New variables to
[thirdparty/binutils-gdb.git] / gas / config / obj-ecoff.c
1 /* ECOFF object file format.
2 Copyright (C) 1993 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
4 This file was put together by Ian Lance Taylor <ian@cygnus.com>. A
5 good deal of it comes directly from mips-tfile.c, by Michael
6 Meissner <meissner@osf.org>.
7
8 This file is part of GAS.
9
10 GAS is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GAS is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GAS; see the file COPYING. If not, write to
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24 #include "as.h"
25 #include "coff/internal.h"
26 #include "coff/sym.h"
27 #include "coff/symconst.h"
28 #include "coff/ecoff.h"
29 #include "aout/stab_gnu.h"
30 #include "../bfd/libcoff.h"
31 #include "../bfd/libecoff.h"
32
33 #include <ctype.h>
34
35 /* Why isn't this in coff/sym.h? */
36 #define ST_RFDESCAPE 0xfff
37
38 /* Why isn't this in listing.h? */
39 extern int listing;
40
41 /* The ECOFF file format uses COFF style sections, but with a unique
42 debugging format. We just build generic BFD sections since BFD
43 knows how to write them out. The debugging format, however, we
44 must construct here; all BFD knows at the moment is to write it out
45 as a large block of data.
46
47 We support both COFF style debugging and stabs debugging (the stabs
48 symbols are encapsulated in COFF symbols). This should let us
49 handle anything the compiler might throw at us. Parsing the COFF
50 and stabs debugging information is similar to work done by COFF and
51 a.out targets, but since the result is completely different the
52 code is not shared. */
53
54 /* Here is a brief description of the MIPS ECOFF symbol table, by
55 Michael Meissner. The MIPS symbol table has the following pieces:
56
57 Symbolic Header
58 |
59 +-- Auxiliary Symbols
60 |
61 +-- Dense number table
62 |
63 +-- Optimizer Symbols
64 |
65 +-- External Strings
66 |
67 +-- External Symbols
68 |
69 +-- Relative file descriptors
70 |
71 +-- File table
72 |
73 +-- Procedure table
74 |
75 +-- Line number table
76 |
77 +-- Local Strings
78 |
79 +-- Local Symbols
80
81 The symbolic header points to each of the other tables, and also
82 contains the number of entries. It also contains a magic number
83 and MIPS compiler version number, such as 2.0.
84
85 The auxiliary table is a series of 32 bit integers, that are
86 referenced as needed from the local symbol table. Unlike standard
87 COFF, the aux. information does not follow the symbol that uses
88 it, but rather is a separate table. In theory, this would allow
89 the MIPS compilers to collapse duplicate aux. entries, but I've not
90 noticed this happening with the 1.31 compiler suite. The different
91 types of aux. entries are:
92
93 1) dnLow: Low bound on array dimension.
94
95 2) dnHigh: High bound on array dimension.
96
97 3) isym: Index to the local symbol which is the start of the
98 function for the end of function first aux. entry.
99
100 4) width: Width of structures and bitfields.
101
102 5) count: Count of ranges for variant part.
103
104 6) rndx: A relative index into the symbol table. The relative
105 index field has two parts: rfd which is a pointer into the
106 relative file index table or ST_RFDESCAPE which says the next
107 aux. entry is the file number, and index: which is the pointer
108 into the local symbol within a given file table. This is for
109 things like references to types defined in another file.
110
111 7) Type information: This is like the COFF type bits, except it
112 is 32 bits instead of 16; they still have room to add new
113 basic types; and they can handle more than 6 levels of array,
114 pointer, function, etc. Each type information field contains
115 the following structure members:
116
117 a) fBitfield: a bit that says this is a bitfield, and the
118 size in bits follows as the next aux. entry.
119
120 b) continued: a bit that says the next aux. entry is a
121 continuation of the current type information (in case
122 there are more than 6 levels of array/ptr/function).
123
124 c) bt: an integer containing the base type before adding
125 array, pointer, function, etc. qualifiers. The
126 current base types that I have documentation for are:
127
128 btNil -- undefined
129 btAdr -- address - integer same size as ptr
130 btChar -- character
131 btUChar -- unsigned character
132 btShort -- short
133 btUShort -- unsigned short
134 btInt -- int
135 btUInt -- unsigned int
136 btLong -- long
137 btULong -- unsigned long
138 btFloat -- float (real)
139 btDouble -- Double (real)
140 btStruct -- Structure (Record)
141 btUnion -- Union (variant)
142 btEnum -- Enumerated
143 btTypedef -- defined via a typedef isymRef
144 btRange -- subrange of int
145 btSet -- pascal sets
146 btComplex -- fortran complex
147 btDComplex -- fortran double complex
148 btIndirect -- forward or unnamed typedef
149 btFixedDec -- Fixed Decimal
150 btFloatDec -- Float Decimal
151 btString -- Varying Length Character String
152 btBit -- Aligned Bit String
153 btPicture -- Picture
154 btVoid -- Void (MIPS cc revision >= 2.00)
155
156 d) tq0 - tq5: type qualifier fields as needed. The
157 current type qualifier fields I have documentation for
158 are:
159
160 tqNil -- no more qualifiers
161 tqPtr -- pointer
162 tqProc -- procedure
163 tqArray -- array
164 tqFar -- 8086 far pointers
165 tqVol -- volatile
166
167
168 The dense number table is used in the front ends, and disappears by
169 the time the .o is created.
170
171 With the 1.31 compiler suite, the optimization symbols don't seem
172 to be used as far as I can tell.
173
174 The linker is the first entity that creates the relative file
175 descriptor table, and I believe it is used so that the individual
176 file table pointers don't have to be rewritten when the objects are
177 merged together into the program file.
178
179 Unlike COFF, the basic symbol & string tables are split into
180 external and local symbols/strings. The relocation information
181 only goes off of the external symbol table, and the debug
182 information only goes off of the internal symbol table. The
183 external symbols can have links to an appropriate file index and
184 symbol within the file to give it the appropriate type information.
185 Because of this, the external symbols are actually larger than the
186 internal symbols (to contain the link information), and contain the
187 local symbol structure as a member, though this member is not the
188 first member of the external symbol structure (!). I suspect this
189 split is to make strip easier to deal with.
190
191 Each file table has offsets for where the line numbers, local
192 strings, local symbols, and procedure table starts from within the
193 global tables, and the indexs are reset to 0 for each of those
194 tables for the file.
195
196 The procedure table contains the binary equivalents of the .ent
197 (start of the function address), .frame (what register is the
198 virtual frame pointer, constant offset from the register to obtain
199 the VFP, and what register holds the return address), .mask/.fmask
200 (bitmask of saved registers, and where the first register is stored
201 relative to the VFP) assembler directives. It also contains the
202 low and high bounds of the line numbers if debugging is turned on.
203
204 The line number table is a compressed form of the normal COFF line
205 table. Each line number entry is either 1 or 3 bytes long, and
206 contains a signed delta from the previous line, and an unsigned
207 count of the number of instructions this statement takes.
208
209 The local symbol table contains the following fields:
210
211 1) iss: index to the local string table giving the name of the
212 symbol.
213
214 2) value: value of the symbol (address, register number, etc.).
215
216 3) st: symbol type. The current symbol types are:
217
218 stNil -- Nuthin' special
219 stGlobal -- external symbol
220 stStatic -- static
221 stParam -- procedure argument
222 stLocal -- local variable
223 stLabel -- label
224 stProc -- External Procedure
225 stBlock -- beginning of block
226 stEnd -- end (of anything)
227 stMember -- member (of anything)
228 stTypedef -- type definition
229 stFile -- file name
230 stRegReloc -- register relocation
231 stForward -- forwarding address
232 stStaticProc -- Static procedure
233 stConstant -- const
234
235 4) sc: storage class. The current storage classes are:
236
237 scText -- text symbol
238 scData -- initialized data symbol
239 scBss -- un-initialized data symbol
240 scRegister -- value of symbol is register number
241 scAbs -- value of symbol is absolute
242 scUndefined -- who knows?
243 scCdbLocal -- variable's value is IN se->va.??
244 scBits -- this is a bit field
245 scCdbSystem -- value is IN debugger's address space
246 scRegImage -- register value saved on stack
247 scInfo -- symbol contains debugger information
248 scUserStruct -- addr in struct user for current process
249 scSData -- load time only small data
250 scSBss -- load time only small common
251 scRData -- load time only read only data
252 scVar -- Var parameter (fortranpascal)
253 scCommon -- common variable
254 scSCommon -- small common
255 scVarRegister -- Var parameter in a register
256 scVariant -- Variant record
257 scSUndefined -- small undefined(external) data
258 scInit -- .init section symbol
259
260 5) index: pointer to a local symbol or aux. entry.
261
262
263
264 For the following program:
265
266 #include <stdio.h>
267
268 main(){
269 printf("Hello World!\n");
270 return 0;
271 }
272
273 Mips-tdump produces the following information:
274
275 Global file header:
276 magic number 0x162
277 # sections 2
278 timestamp 645311799, Wed Jun 13 17:16:39 1990
279 symbolic header offset 284
280 symbolic header size 96
281 optional header 56
282 flags 0x0
283
284 Symbolic header, magic number = 0x7009, vstamp = 1.31:
285
286 Info Offset Number Bytes
287 ==== ====== ====== =====
288
289 Line numbers 380 4 4 [13]
290 Dense numbers 0 0 0
291 Procedures Tables 384 1 52
292 Local Symbols 436 16 192
293 Optimization Symbols 0 0 0
294 Auxiliary Symbols 628 39 156
295 Local Strings 784 80 80
296 External Strings 864 144 144
297 File Tables 1008 2 144
298 Relative Files 0 0 0
299 External Symbols 1152 20 320
300
301 File #0, "hello2.c"
302
303 Name index = 1 Readin = No
304 Merge = No Endian = LITTLE
305 Debug level = G2 Language = C
306 Adr = 0x00000000
307
308 Info Start Number Size Offset
309 ==== ===== ====== ==== ======
310 Local strings 0 15 15 784
311 Local symbols 0 6 72 436
312 Line numbers 0 13 13 380
313 Optimization symbols 0 0 0 0
314 Procedures 0 1 52 384
315 Auxiliary symbols 0 14 56 628
316 Relative Files 0 0 0 0
317
318 There are 6 local symbols, starting at 436
319
320 Symbol# 0: "hello2.c"
321 End+1 symbol = 6
322 String index = 1
323 Storage class = Text Index = 6
324 Symbol type = File Value = 0
325
326 Symbol# 1: "main"
327 End+1 symbol = 5
328 Type = int
329 String index = 10
330 Storage class = Text Index = 12
331 Symbol type = Proc Value = 0
332
333 Symbol# 2: ""
334 End+1 symbol = 4
335 String index = 0
336 Storage class = Text Index = 4
337 Symbol type = Block Value = 8
338
339 Symbol# 3: ""
340 First symbol = 2
341 String index = 0
342 Storage class = Text Index = 2
343 Symbol type = End Value = 28
344
345 Symbol# 4: "main"
346 First symbol = 1
347 String index = 10
348 Storage class = Text Index = 1
349 Symbol type = End Value = 52
350
351 Symbol# 5: "hello2.c"
352 First symbol = 0
353 String index = 1
354 Storage class = Text Index = 0
355 Symbol type = End Value = 0
356
357 There are 14 auxiliary table entries, starting at 628.
358
359 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
360 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
361 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
362 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
363 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
364 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
365 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
366 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
367 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
368 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
369 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
370 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
371 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
372 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
373
374 There are 1 procedure descriptor entries, starting at 0.
375
376 Procedure descriptor 0:
377 Name index = 10 Name = "main"
378 .mask 0x80000000,-4 .fmask 0x00000000,0
379 .frame $29,24,$31
380 Opt. start = -1 Symbols start = 1
381 First line # = 3 Last line # = 6
382 Line Offset = 0 Address = 0x00000000
383
384 There are 4 bytes holding line numbers, starting at 380.
385 Line 3, delta 0, count 2
386 Line 4, delta 1, count 3
387 Line 5, delta 1, count 2
388 Line 6, delta 1, count 6
389
390 File #1, "/usr/include/stdio.h"
391
392 Name index = 1 Readin = No
393 Merge = Yes Endian = LITTLE
394 Debug level = G2 Language = C
395 Adr = 0x00000000
396
397 Info Start Number Size Offset
398 ==== ===== ====== ==== ======
399 Local strings 15 65 65 799
400 Local symbols 6 10 120 508
401 Line numbers 0 0 0 380
402 Optimization symbols 0 0 0 0
403 Procedures 1 0 0 436
404 Auxiliary symbols 14 25 100 684
405 Relative Files 0 0 0 0
406
407 There are 10 local symbols, starting at 442
408
409 Symbol# 0: "/usr/include/stdio.h"
410 End+1 symbol = 10
411 String index = 1
412 Storage class = Text Index = 10
413 Symbol type = File Value = 0
414
415 Symbol# 1: "_iobuf"
416 End+1 symbol = 9
417 String index = 22
418 Storage class = Info Index = 9
419 Symbol type = Block Value = 20
420
421 Symbol# 2: "_cnt"
422 Type = int
423 String index = 29
424 Storage class = Info Index = 4
425 Symbol type = Member Value = 0
426
427 Symbol# 3: "_ptr"
428 Type = ptr to char
429 String index = 34
430 Storage class = Info Index = 15
431 Symbol type = Member Value = 32
432
433 Symbol# 4: "_base"
434 Type = ptr to char
435 String index = 39
436 Storage class = Info Index = 16
437 Symbol type = Member Value = 64
438
439 Symbol# 5: "_bufsiz"
440 Type = int
441 String index = 45
442 Storage class = Info Index = 4
443 Symbol type = Member Value = 96
444
445 Symbol# 6: "_flag"
446 Type = short
447 String index = 53
448 Storage class = Info Index = 3
449 Symbol type = Member Value = 128
450
451 Symbol# 7: "_file"
452 Type = char
453 String index = 59
454 Storage class = Info Index = 2
455 Symbol type = Member Value = 144
456
457 Symbol# 8: ""
458 First symbol = 1
459 String index = 0
460 Storage class = Info Index = 1
461 Symbol type = End Value = 0
462
463 Symbol# 9: "/usr/include/stdio.h"
464 First symbol = 0
465 String index = 1
466 Storage class = Text Index = 0
467 Symbol type = End Value = 0
468
469 There are 25 auxiliary table entries, starting at 642.
470
471 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
472 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
473 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
474 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
475 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
476 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
477 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
478 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
479 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
480 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
481 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
482 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
483 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
484 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
485 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
486 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
487 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
488 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
489 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
490 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
491 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
492 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
493 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
494 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
495 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
496
497 There are 0 procedure descriptor entries, starting at 1.
498
499 There are 20 external symbols, starting at 1152
500
501 Symbol# 0: "_iob"
502 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
503 String index = 0 Ifd = 1
504 Storage class = Nil Index = 17
505 Symbol type = Global Value = 60
506
507 Symbol# 1: "fopen"
508 String index = 5 Ifd = 1
509 Storage class = Nil Index = 1048575
510 Symbol type = Proc Value = 0
511
512 Symbol# 2: "fdopen"
513 String index = 11 Ifd = 1
514 Storage class = Nil Index = 1048575
515 Symbol type = Proc Value = 0
516
517 Symbol# 3: "freopen"
518 String index = 18 Ifd = 1
519 Storage class = Nil Index = 1048575
520 Symbol type = Proc Value = 0
521
522 Symbol# 4: "popen"
523 String index = 26 Ifd = 1
524 Storage class = Nil Index = 1048575
525 Symbol type = Proc Value = 0
526
527 Symbol# 5: "tmpfile"
528 String index = 32 Ifd = 1
529 Storage class = Nil Index = 1048575
530 Symbol type = Proc Value = 0
531
532 Symbol# 6: "ftell"
533 String index = 40 Ifd = 1
534 Storage class = Nil Index = 1048575
535 Symbol type = Proc Value = 0
536
537 Symbol# 7: "rewind"
538 String index = 46 Ifd = 1
539 Storage class = Nil Index = 1048575
540 Symbol type = Proc Value = 0
541
542 Symbol# 8: "setbuf"
543 String index = 53 Ifd = 1
544 Storage class = Nil Index = 1048575
545 Symbol type = Proc Value = 0
546
547 Symbol# 9: "setbuffer"
548 String index = 60 Ifd = 1
549 Storage class = Nil Index = 1048575
550 Symbol type = Proc Value = 0
551
552 Symbol# 10: "setlinebuf"
553 String index = 70 Ifd = 1
554 Storage class = Nil Index = 1048575
555 Symbol type = Proc Value = 0
556
557 Symbol# 11: "fgets"
558 String index = 81 Ifd = 1
559 Storage class = Nil Index = 1048575
560 Symbol type = Proc Value = 0
561
562 Symbol# 12: "gets"
563 String index = 87 Ifd = 1
564 Storage class = Nil Index = 1048575
565 Symbol type = Proc Value = 0
566
567 Symbol# 13: "ctermid"
568 String index = 92 Ifd = 1
569 Storage class = Nil Index = 1048575
570 Symbol type = Proc Value = 0
571
572 Symbol# 14: "cuserid"
573 String index = 100 Ifd = 1
574 Storage class = Nil Index = 1048575
575 Symbol type = Proc Value = 0
576
577 Symbol# 15: "tempnam"
578 String index = 108 Ifd = 1
579 Storage class = Nil Index = 1048575
580 Symbol type = Proc Value = 0
581
582 Symbol# 16: "tmpnam"
583 String index = 116 Ifd = 1
584 Storage class = Nil Index = 1048575
585 Symbol type = Proc Value = 0
586
587 Symbol# 17: "sprintf"
588 String index = 123 Ifd = 1
589 Storage class = Nil Index = 1048575
590 Symbol type = Proc Value = 0
591
592 Symbol# 18: "main"
593 Type = int
594 String index = 131 Ifd = 0
595 Storage class = Text Index = 1
596 Symbol type = Proc Value = 0
597
598 Symbol# 19: "printf"
599 String index = 136 Ifd = 0
600 Storage class = Undefined Index = 1048575
601 Symbol type = Proc Value = 0
602
603 The following auxiliary table entries were unused:
604
605 #0 0 0x00000000 void
606 #2 8 0x00000008 char
607 #3 16 0x00000010 short
608 #4 24 0x00000018 int
609 #5 32 0x00000020 long
610 #6 40 0x00000028 float
611 #7 44 0x0000002c double
612 #8 12 0x0000000c unsigned char
613 #9 20 0x00000014 unsigned short
614 #10 28 0x0000001c unsigned int
615 #11 36 0x00000024 unsigned long
616 #14 0 0x00000000 void
617 #15 24 0x00000018 int
618 #19 32 0x00000020 long
619 #20 40 0x00000028 float
620 #21 44 0x0000002c double
621 #22 12 0x0000000c unsigned char
622 #23 20 0x00000014 unsigned short
623 #24 28 0x0000001c unsigned int
624 #25 36 0x00000024 unsigned long
625 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
626 \f
627 */
628 /* Redefinition of of storage classes as an enumeration for better
629 debugging. */
630
631 typedef enum sc {
632 sc_Nil = scNil, /* no storage class */
633 sc_Text = scText, /* text symbol */
634 sc_Data = scData, /* initialized data symbol */
635 sc_Bss = scBss, /* un-initialized data symbol */
636 sc_Register = scRegister, /* value of symbol is register number */
637 sc_Abs = scAbs, /* value of symbol is absolute */
638 sc_Undefined = scUndefined, /* who knows? */
639 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
640 sc_Bits = scBits, /* this is a bit field */
641 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
642 sc_RegImage = scRegImage, /* register value saved on stack */
643 sc_Info = scInfo, /* symbol contains debugger information */
644 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
645 sc_SData = scSData, /* load time only small data */
646 sc_SBss = scSBss, /* load time only small common */
647 sc_RData = scRData, /* load time only read only data */
648 sc_Var = scVar, /* Var parameter (fortran,pascal) */
649 sc_Common = scCommon, /* common variable */
650 sc_SCommon = scSCommon, /* small common */
651 sc_VarRegister = scVarRegister, /* Var parameter in a register */
652 sc_Variant = scVariant, /* Variant record */
653 sc_SUndefined = scSUndefined, /* small undefined(external) data */
654 sc_Init = scInit, /* .init section symbol */
655 sc_Max = scMax /* Max storage class+1 */
656 } sc_t;
657
658 /* Redefinition of symbol type. */
659
660 typedef enum st {
661 st_Nil = stNil, /* Nuthin' special */
662 st_Global = stGlobal, /* external symbol */
663 st_Static = stStatic, /* static */
664 st_Param = stParam, /* procedure argument */
665 st_Local = stLocal, /* local variable */
666 st_Label = stLabel, /* label */
667 st_Proc = stProc, /* " " Procedure */
668 st_Block = stBlock, /* beginning of block */
669 st_End = stEnd, /* end (of anything) */
670 st_Member = stMember, /* member (of anything - struct/union/enum */
671 st_Typedef = stTypedef, /* type definition */
672 st_File = stFile, /* file name */
673 st_RegReloc = stRegReloc, /* register relocation */
674 st_Forward = stForward, /* forwarding address */
675 st_StaticProc = stStaticProc, /* load time only static procs */
676 st_Constant = stConstant, /* const */
677 st_Str = stStr, /* string */
678 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
679 st_Expr = stExpr, /* 2+2 vs. 4 */
680 st_Type = stType, /* post-coercion SER */
681 st_Max = stMax /* max type+1 */
682 } st_t;
683
684 /* Redefinition of type qualifiers. */
685
686 typedef enum tq {
687 tq_Nil = tqNil, /* bt is what you see */
688 tq_Ptr = tqPtr, /* pointer */
689 tq_Proc = tqProc, /* procedure */
690 tq_Array = tqArray, /* duh */
691 tq_Far = tqFar, /* longer addressing - 8086/8 land */
692 tq_Vol = tqVol, /* volatile */
693 tq_Max = tqMax /* Max type qualifier+1 */
694 } tq_t;
695
696 /* Redefinition of basic types. */
697
698 typedef enum bt {
699 bt_Nil = btNil, /* undefined */
700 bt_Adr = btAdr, /* address - integer same size as pointer */
701 bt_Char = btChar, /* character */
702 bt_UChar = btUChar, /* unsigned character */
703 bt_Short = btShort, /* short */
704 bt_UShort = btUShort, /* unsigned short */
705 bt_Int = btInt, /* int */
706 bt_UInt = btUInt, /* unsigned int */
707 bt_Long = btLong, /* long */
708 bt_ULong = btULong, /* unsigned long */
709 bt_Float = btFloat, /* float (real) */
710 bt_Double = btDouble, /* Double (real) */
711 bt_Struct = btStruct, /* Structure (Record) */
712 bt_Union = btUnion, /* Union (variant) */
713 bt_Enum = btEnum, /* Enumerated */
714 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
715 bt_Range = btRange, /* subrange of int */
716 bt_Set = btSet, /* pascal sets */
717 bt_Complex = btComplex, /* fortran complex */
718 bt_DComplex = btDComplex, /* fortran double complex */
719 bt_Indirect = btIndirect, /* forward or unnamed typedef */
720 bt_FixedDec = btFixedDec, /* Fixed Decimal */
721 bt_FloatDec = btFloatDec, /* Float Decimal */
722 bt_String = btString, /* Varying Length Character String */
723 bt_Bit = btBit, /* Aligned Bit String */
724 bt_Picture = btPicture, /* Picture */
725 bt_Void = btVoid, /* Void */
726 bt_Max = btMax /* Max basic type+1 */
727 } bt_t;
728
729 #define N_TQ itqMax
730
731 /* States for whether to hash type or not. */
732 typedef enum hash_state {
733 hash_no = 0, /* don't hash type */
734 hash_yes = 1, /* ok to hash type, or use previous hash */
735 hash_record = 2 /* ok to record hash, but don't use prev. */
736 } hash_state_t;
737
738 /* Types of different sized allocation requests. */
739 enum alloc_type {
740 alloc_type_none, /* dummy value */
741 alloc_type_scope, /* nested scopes linked list */
742 alloc_type_vlinks, /* glue linking pages in varray */
743 alloc_type_shash, /* string hash element */
744 alloc_type_thash, /* type hash element */
745 alloc_type_tag, /* struct/union/tag element */
746 alloc_type_forward, /* element to hold unknown tag */
747 alloc_type_thead, /* head of type hash list */
748 alloc_type_varray, /* general varray allocation */
749 alloc_type_lineno, /* line number list */
750 alloc_type_last /* last+1 element for array bounds */
751 };
752
753 /* Types of auxiliary type information. */
754 enum aux_type {
755 aux_tir, /* TIR type information */
756 aux_rndx, /* relative index into symbol table */
757 aux_dnLow, /* low dimension */
758 aux_dnHigh, /* high dimension */
759 aux_isym, /* symbol table index (end of proc) */
760 aux_iss, /* index into string space (not used) */
761 aux_width, /* width for non-default sized struc fields */
762 aux_count /* count of ranges for variant arm */
763 };
764 \f
765 /* Structures to provide n-number of virtual arrays, each of which can
766 grow linearly, and which are written in the object file as
767 sequential pages. On systems with a BSD malloc, the
768 MAX_CLUSTER_PAGES should be 1 less than a power of two, since
769 malloc adds it's overhead, and rounds up to the next power of 2.
770 Pages are linked together via a linked list.
771
772 If PAGE_SIZE is > 4096, the string length in the shash_t structure
773 can't be represented (assuming there are strings > 4096 bytes). */
774
775 #ifndef PAGE_SIZE
776 #define PAGE_SIZE 4096 /* size of varray pages */
777 #endif
778
779 #define PAGE_USIZE ((unsigned long) PAGE_SIZE)
780
781
782 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
783 #define MAX_CLUSTER_PAGES 63
784 #endif
785
786
787 /* Linked list connecting separate page allocations. */
788 typedef struct vlinks {
789 struct vlinks *prev; /* previous set of pages */
790 struct vlinks *next; /* next set of pages */
791 union page *datum; /* start of page */
792 unsigned long start_index; /* starting index # of page */
793 } vlinks_t;
794
795
796 /* Virtual array header. */
797 typedef struct varray {
798 vlinks_t *first; /* first page link */
799 vlinks_t *last; /* last page link */
800 unsigned long num_allocated; /* # objects allocated */
801 unsigned short object_size; /* size in bytes of each object */
802 unsigned short objects_per_page; /* # objects that can fit on a page */
803 unsigned short objects_last_page; /* # objects allocated on last page */
804 } varray_t;
805
806 #ifndef MALLOC_CHECK
807 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
808 #else
809 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
810 #endif
811
812 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
813 (vlinks_t *)0, /* first */ \
814 (vlinks_t *)0, /* last */ \
815 0, /* num_allocated */ \
816 sizeof (type), /* object_size */ \
817 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
818 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
819 }
820
821
822 /* Master type for indexes within the symbol table. */
823 typedef unsigned long symint_t;
824
825
826 /* Linked list support for nested scopes (file, block, structure, etc.). */
827 typedef struct scope {
828 struct scope *prev; /* previous scope level */
829 struct scope *free; /* free list pointer */
830 struct localsym *lsym; /* pointer to local symbol node */
831 st_t type; /* type of the node */
832 } scope_t;
833
834
835 /* For a local symbol we store a gas symbol as well as the debugging
836 information we generate. The gas symbol will be NULL if this is
837 only a debugging symbol. */
838 typedef struct localsym {
839 const char *name; /* symbol name */
840 symbolS *as_sym; /* symbol as seen by gas */
841 struct efdr *file_ptr; /* file pointer */
842 struct ecoff_proc *proc_ptr; /* proc pointer */
843 struct localsym *begin_ptr; /* symbol at start of block */
844 struct ecoff_aux *index_ptr; /* index value to be filled in */
845 struct forward *forward_ref; /* forward references to this symbol */
846 long sym_index; /* final symbol index */
847 SYMR ecoff_sym; /* ECOFF debugging symbol */
848 } localsym_t;
849
850
851 /* For aux information we keep the type and the data. */
852 typedef struct ecoff_aux {
853 enum aux_type type; /* aux type */
854 AUXU data; /* aux data */
855 } aux_t;
856
857 /* For a procedure we store the gas symbol as well as the PDR
858 debugging information. */
859 typedef struct ecoff_proc {
860 localsym_t *sym; /* associated symbol */
861 PDR pdr; /* ECOFF debugging info */
862 } proc_t;
863
864 /* Number of proc_t structures allocated. */
865 static unsigned long proc_cnt;
866
867
868 /* Forward reference list for tags referenced, but not yet defined. */
869 typedef struct forward {
870 struct forward *next; /* next forward reference */
871 struct forward *free; /* free list pointer */
872 aux_t *ifd_ptr; /* pointer to store file index */
873 aux_t *index_ptr; /* pointer to store symbol index */
874 } forward_t;
875
876
877 /* Linked list support for tags. The first tag in the list is always
878 the current tag for that block. */
879 typedef struct tag {
880 struct tag *free; /* free list pointer */
881 struct shash *hash_ptr; /* pointer to the hash table head */
882 struct tag *same_name; /* tag with same name in outer scope */
883 struct tag *same_block; /* next tag defined in the same block. */
884 struct forward *forward_ref; /* list of forward references */
885 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
886 symint_t ifd; /* file # tag defined in */
887 localsym_t *sym; /* file's local symbols */
888 } tag_t;
889
890
891 /* Head of a block's linked list of tags. */
892 typedef struct thead {
893 struct thead *prev; /* previous block */
894 struct thead *free; /* free list pointer */
895 struct tag *first_tag; /* first tag in block defined */
896 } thead_t;
897
898
899 /* Union containing pointers to each the small structures which are freed up. */
900 typedef union small_free {
901 scope_t *f_scope; /* scope structure */
902 thead_t *f_thead; /* tag head structure */
903 tag_t *f_tag; /* tag element structure */
904 forward_t *f_forward; /* forward tag reference */
905 } small_free_t;
906
907
908 /* String hash table entry. */
909
910 typedef struct shash {
911 char *string; /* string we are hashing */
912 symint_t indx; /* index within string table */
913 EXTR *esym_ptr; /* global symbol pointer */
914 localsym_t *sym_ptr; /* local symbol pointer */
915 localsym_t *end_ptr; /* symbol pointer to end block */
916 tag_t *tag_ptr; /* tag pointer */
917 proc_t *proc_ptr; /* procedure descriptor pointer */
918 } shash_t;
919
920
921 /* Type hash table support. The size of the hash table must fit
922 within a page with the other extended file descriptor information.
923 Because unique types which are hashed are fewer in number than
924 strings, we use a smaller hash value. */
925
926 #define HASHBITS 30
927
928 #ifndef THASH_SIZE
929 #define THASH_SIZE 113
930 #endif
931
932 typedef struct thash {
933 struct thash *next; /* next hash value */
934 AUXU type; /* type we are hashing */
935 symint_t indx; /* index within string table */
936 } thash_t;
937
938
939 /* Extended file descriptor that contains all of the support necessary
940 to add things to each file separately. */
941 typedef struct efdr {
942 FDR fdr; /* File header to be written out */
943 FDR *orig_fdr; /* original file header */
944 char *name; /* filename */
945 symint_t void_type; /* aux. pointer to 'void' type */
946 symint_t int_type; /* aux. pointer to 'int' type */
947 scope_t *cur_scope; /* current nested scopes */
948 symint_t file_index; /* current file number */
949 int nested_scopes; /* # nested scopes */
950 varray_t strings; /* local strings */
951 varray_t symbols; /* local symbols */
952 varray_t procs; /* procedures */
953 varray_t aux_syms; /* auxiliary symbols */
954 struct efdr *next_file; /* next file descriptor */
955 /* string/type hash tables */
956 struct hash_control *str_hash; /* string hash table */
957 thash_t *thash_head[THASH_SIZE];
958 } efdr_t;
959
960 /* Pre-initialized extended file structure. */
961 static const efdr_t init_file =
962 {
963 { /* FDR structure */
964 0, /* adr: memory address of beginning of file */
965 0, /* rss: file name (of source, if known) */
966 0, /* issBase: file's string space */
967 0, /* cbSs: number of bytes in the ss */
968 0, /* isymBase: beginning of symbols */
969 0, /* csym: count file's of symbols */
970 0, /* ilineBase: file's line symbols */
971 0, /* cline: count of file's line symbols */
972 0, /* ioptBase: file's optimization entries */
973 0, /* copt: count of file's optimization entries */
974 0, /* ipdFirst: start of procedures for this file */
975 0, /* cpd: count of procedures for this file */
976 0, /* iauxBase: file's auxiliary entries */
977 0, /* caux: count of file's auxiliary entries */
978 0, /* rfdBase: index into the file indirect table */
979 0, /* crfd: count file indirect entries */
980 langC, /* lang: language for this file */
981 0, /* fMerge: whether this file can be merged */
982 0, /* fReadin: true if read in (not just created) */
983 #ifdef TARGET_BYTES_BIG_ENDIAN
984 1, /* fBigendian: if 1, compiled on big endian machine */
985 #else
986 0, /* fBigendian: if 1, compiled on big endian machine */
987 #endif
988 GLEVEL_2, /* glevel: level this file was compiled with */
989 0, /* reserved: reserved for future use */
990 0, /* cbLineOffset: byte offset from header for this file ln's */
991 0, /* cbLine: size of lines for this file */
992 },
993
994 (FDR *)0, /* orig_fdr: original file header pointer */
995 (char *)0, /* name: pointer to filename */
996 0, /* void_type: ptr to aux node for void type */
997 0, /* int_type: ptr to aux node for int type */
998 (scope_t *)0, /* cur_scope: current scope being processed */
999 0, /* file_index: current file # */
1000 0, /* nested_scopes: # nested scopes */
1001 INIT_VARRAY (char), /* strings: local string varray */
1002 INIT_VARRAY (localsym_t), /* symbols: local symbols varray */
1003 INIT_VARRAY (proc_t), /* procs: procedure varray */
1004 INIT_VARRAY (aux_t), /* aux_syms: auxiliary symbols varray */
1005
1006 (struct efdr *)0, /* next_file: next file structure */
1007
1008 (struct hash_control *)0, /* str_hash: string hash table */
1009 { 0 }, /* thash_head: type hash table */
1010 };
1011
1012
1013 static efdr_t *first_file; /* first file descriptor */
1014 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1015
1016
1017 /* Line number information is kept in a list until the assembly is
1018 finished. */
1019 typedef struct lineno_list {
1020 struct lineno_list *next; /* next element in list */
1021 efdr_t *file; /* file this line is in */
1022 proc_t *proc; /* procedure this line is in */
1023 fragS *frag; /* fragment this line number is in */
1024 unsigned long paddr; /* offset within fragment */
1025 long lineno; /* actual line number */
1026 } lineno_list_t;
1027
1028 static lineno_list_t *first_lineno;
1029 static lineno_list_t **last_lineno_ptr = &first_lineno;
1030
1031 /* Sometimes there will be some .loc statements before a .ent. We
1032 keep them in this list so that we can fill in the procedure pointer
1033 after we see the .ent. */
1034 static lineno_list_t *noproc_lineno;
1035
1036 /* Union of various things that are held in pages. */
1037 typedef union page {
1038 char byte [ PAGE_SIZE ];
1039 unsigned char ubyte [ PAGE_SIZE ];
1040 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1041 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1042 proc_t proc [ PAGE_SIZE / sizeof (proc_t) ];
1043 localsym_t sym [ PAGE_SIZE / sizeof (localsym_t) ];
1044 aux_t aux [ PAGE_SIZE / sizeof (aux_t) ];
1045 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1046 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1047 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1048 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1049 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1050 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1051 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1052 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1053 lineno_list_t lineno [ PAGE_SIZE / sizeof (lineno_list_t) ];
1054 } page_t;
1055
1056
1057 /* Structure holding allocation information for small sized structures. */
1058 typedef struct alloc_info {
1059 char *alloc_name; /* name of this allocation type (must be first) */
1060 page_t *cur_page; /* current page being allocated from */
1061 small_free_t free_list; /* current free list if any */
1062 int unallocated; /* number of elements unallocated on page */
1063 int total_alloc; /* total number of allocations */
1064 int total_free; /* total number of frees */
1065 int total_pages; /* total number of pages allocated */
1066 } alloc_info_t;
1067
1068
1069 /* Type information collected together. */
1070 typedef struct type_info {
1071 bt_t basic_type; /* basic type */
1072 int orig_type; /* original COFF-based type */
1073 int num_tq; /* # type qualifiers */
1074 int num_dims; /* # dimensions */
1075 int num_sizes; /* # sizes */
1076 int extra_sizes; /* # extra sizes not tied with dims */
1077 tag_t * tag_ptr; /* tag pointer */
1078 int bitfield; /* symbol is a bitfield */
1079 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1080 symint_t dimensions [N_TQ]; /* dimensions for each array */
1081 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1082 struct/union/enum + bitfield size */
1083 } type_info_t;
1084
1085 /* Pre-initialized type_info struct. */
1086 static const type_info_t type_info_init = {
1087 bt_Nil, /* basic type */
1088 T_NULL, /* original COFF-based type */
1089 0, /* # type qualifiers */
1090 0, /* # dimensions */
1091 0, /* # sizes */
1092 0, /* sizes not tied with dims */
1093 NULL, /* ptr to tag */
1094 0, /* bitfield */
1095 { /* type qualifiers */
1096 tq_Nil,
1097 tq_Nil,
1098 tq_Nil,
1099 tq_Nil,
1100 tq_Nil,
1101 tq_Nil,
1102 },
1103 { /* dimensions */
1104 0,
1105 0,
1106 0,
1107 0,
1108 0,
1109 0
1110 },
1111 { /* sizes */
1112 0,
1113 0,
1114 0,
1115 0,
1116 0,
1117 0,
1118 0,
1119 0,
1120 },
1121 };
1122
1123 /* Global hash table for the tags table and global table for file
1124 descriptors. */
1125
1126 static varray_t file_desc = INIT_VARRAY (efdr_t);
1127
1128 static struct hash_control *tag_hash;
1129
1130 /* Static types for int and void. Also, remember the last function's
1131 type (which is set up when we encounter the declaration for the
1132 function, and used when the end block for the function is emitted. */
1133
1134 static type_info_t int_type_info;
1135 static type_info_t void_type_info;
1136 static type_info_t last_func_type_info;
1137 static symbolS *last_func_sym_value;
1138
1139
1140 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1141 really should use bt_Void, but this causes the current ecoff GDB to
1142 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1143 2.0) doesn't understand it, even though the compiler generates it.
1144 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1145 suite, but for now go with what works.
1146
1147 It would make sense for the .type and .scl directives to use the
1148 ECOFF numbers directly, rather than using the COFF numbers and
1149 mapping them. Unfortunately, this is historically what mips-tfile
1150 expects, and changing gcc now would be a considerable pain (the
1151 native compiler generates debugging information internally, rather
1152 than via the assembler, so it will never use .type or .scl). */
1153
1154 static const bt_t map_coff_types[] = {
1155 bt_Nil, /* T_NULL */
1156 bt_Nil, /* T_ARG */
1157 bt_Char, /* T_CHAR */
1158 bt_Short, /* T_SHORT */
1159 bt_Int, /* T_INT */
1160 bt_Long, /* T_LONG */
1161 bt_Float, /* T_FLOAT */
1162 bt_Double, /* T_DOUBLE */
1163 bt_Struct, /* T_STRUCT */
1164 bt_Union, /* T_UNION */
1165 bt_Enum, /* T_ENUM */
1166 bt_Enum, /* T_MOE */
1167 bt_UChar, /* T_UCHAR */
1168 bt_UShort, /* T_USHORT */
1169 bt_UInt, /* T_UINT */
1170 bt_ULong /* T_ULONG */
1171 };
1172
1173 /* Convert COFF storage class to ECOFF storage class. */
1174 static const sc_t map_coff_storage[] = {
1175 sc_Nil, /* 0: C_NULL */
1176 sc_Abs, /* 1: C_AUTO auto var */
1177 sc_Undefined, /* 2: C_EXT external */
1178 sc_Data, /* 3: C_STAT static */
1179 sc_Register, /* 4: C_REG register */
1180 sc_Undefined, /* 5: C_EXTDEF ??? */
1181 sc_Text, /* 6: C_LABEL label */
1182 sc_Text, /* 7: C_ULABEL user label */
1183 sc_Info, /* 8: C_MOS member of struct */
1184 sc_Abs, /* 9: C_ARG argument */
1185 sc_Info, /* 10: C_STRTAG struct tag */
1186 sc_Info, /* 11: C_MOU member of union */
1187 sc_Info, /* 12: C_UNTAG union tag */
1188 sc_Info, /* 13: C_TPDEF typedef */
1189 sc_Data, /* 14: C_USTATIC ??? */
1190 sc_Info, /* 15: C_ENTAG enum tag */
1191 sc_Info, /* 16: C_MOE member of enum */
1192 sc_Register, /* 17: C_REGPARM register parameter */
1193 sc_Bits, /* 18; C_FIELD bitfield */
1194 sc_Nil, /* 19 */
1195 sc_Nil, /* 20 */
1196 sc_Nil, /* 21 */
1197 sc_Nil, /* 22 */
1198 sc_Nil, /* 23 */
1199 sc_Nil, /* 24 */
1200 sc_Nil, /* 25 */
1201 sc_Nil, /* 26 */
1202 sc_Nil, /* 27 */
1203 sc_Nil, /* 28 */
1204 sc_Nil, /* 29 */
1205 sc_Nil, /* 30 */
1206 sc_Nil, /* 31 */
1207 sc_Nil, /* 32 */
1208 sc_Nil, /* 33 */
1209 sc_Nil, /* 34 */
1210 sc_Nil, /* 35 */
1211 sc_Nil, /* 36 */
1212 sc_Nil, /* 37 */
1213 sc_Nil, /* 38 */
1214 sc_Nil, /* 39 */
1215 sc_Nil, /* 40 */
1216 sc_Nil, /* 41 */
1217 sc_Nil, /* 42 */
1218 sc_Nil, /* 43 */
1219 sc_Nil, /* 44 */
1220 sc_Nil, /* 45 */
1221 sc_Nil, /* 46 */
1222 sc_Nil, /* 47 */
1223 sc_Nil, /* 48 */
1224 sc_Nil, /* 49 */
1225 sc_Nil, /* 50 */
1226 sc_Nil, /* 51 */
1227 sc_Nil, /* 52 */
1228 sc_Nil, /* 53 */
1229 sc_Nil, /* 54 */
1230 sc_Nil, /* 55 */
1231 sc_Nil, /* 56 */
1232 sc_Nil, /* 57 */
1233 sc_Nil, /* 58 */
1234 sc_Nil, /* 59 */
1235 sc_Nil, /* 60 */
1236 sc_Nil, /* 61 */
1237 sc_Nil, /* 62 */
1238 sc_Nil, /* 63 */
1239 sc_Nil, /* 64 */
1240 sc_Nil, /* 65 */
1241 sc_Nil, /* 66 */
1242 sc_Nil, /* 67 */
1243 sc_Nil, /* 68 */
1244 sc_Nil, /* 69 */
1245 sc_Nil, /* 70 */
1246 sc_Nil, /* 71 */
1247 sc_Nil, /* 72 */
1248 sc_Nil, /* 73 */
1249 sc_Nil, /* 74 */
1250 sc_Nil, /* 75 */
1251 sc_Nil, /* 76 */
1252 sc_Nil, /* 77 */
1253 sc_Nil, /* 78 */
1254 sc_Nil, /* 79 */
1255 sc_Nil, /* 80 */
1256 sc_Nil, /* 81 */
1257 sc_Nil, /* 82 */
1258 sc_Nil, /* 83 */
1259 sc_Nil, /* 84 */
1260 sc_Nil, /* 85 */
1261 sc_Nil, /* 86 */
1262 sc_Nil, /* 87 */
1263 sc_Nil, /* 88 */
1264 sc_Nil, /* 89 */
1265 sc_Nil, /* 90 */
1266 sc_Nil, /* 91 */
1267 sc_Nil, /* 92 */
1268 sc_Nil, /* 93 */
1269 sc_Nil, /* 94 */
1270 sc_Nil, /* 95 */
1271 sc_Nil, /* 96 */
1272 sc_Nil, /* 97 */
1273 sc_Nil, /* 98 */
1274 sc_Nil, /* 99 */
1275 sc_Text, /* 100: C_BLOCK block start/end */
1276 sc_Text, /* 101: C_FCN function start/end */
1277 sc_Info, /* 102: C_EOS end of struct/union/enum */
1278 sc_Nil, /* 103: C_FILE file start */
1279 sc_Nil, /* 104: C_LINE line number */
1280 sc_Nil, /* 105: C_ALIAS combined type info */
1281 sc_Nil, /* 106: C_HIDDEN ??? */
1282 };
1283
1284 /* Convert COFF storage class to ECOFF symbol type. */
1285 static const st_t map_coff_sym_type[] = {
1286 st_Nil, /* 0: C_NULL */
1287 st_Local, /* 1: C_AUTO auto var */
1288 st_Global, /* 2: C_EXT external */
1289 st_Static, /* 3: C_STAT static */
1290 st_Local, /* 4: C_REG register */
1291 st_Global, /* 5: C_EXTDEF ??? */
1292 st_Label, /* 6: C_LABEL label */
1293 st_Label, /* 7: C_ULABEL user label */
1294 st_Member, /* 8: C_MOS member of struct */
1295 st_Param, /* 9: C_ARG argument */
1296 st_Block, /* 10: C_STRTAG struct tag */
1297 st_Member, /* 11: C_MOU member of union */
1298 st_Block, /* 12: C_UNTAG union tag */
1299 st_Typedef, /* 13: C_TPDEF typedef */
1300 st_Static, /* 14: C_USTATIC ??? */
1301 st_Block, /* 15: C_ENTAG enum tag */
1302 st_Member, /* 16: C_MOE member of enum */
1303 st_Param, /* 17: C_REGPARM register parameter */
1304 st_Member, /* 18; C_FIELD bitfield */
1305 st_Nil, /* 19 */
1306 st_Nil, /* 20 */
1307 st_Nil, /* 21 */
1308 st_Nil, /* 22 */
1309 st_Nil, /* 23 */
1310 st_Nil, /* 24 */
1311 st_Nil, /* 25 */
1312 st_Nil, /* 26 */
1313 st_Nil, /* 27 */
1314 st_Nil, /* 28 */
1315 st_Nil, /* 29 */
1316 st_Nil, /* 30 */
1317 st_Nil, /* 31 */
1318 st_Nil, /* 32 */
1319 st_Nil, /* 33 */
1320 st_Nil, /* 34 */
1321 st_Nil, /* 35 */
1322 st_Nil, /* 36 */
1323 st_Nil, /* 37 */
1324 st_Nil, /* 38 */
1325 st_Nil, /* 39 */
1326 st_Nil, /* 40 */
1327 st_Nil, /* 41 */
1328 st_Nil, /* 42 */
1329 st_Nil, /* 43 */
1330 st_Nil, /* 44 */
1331 st_Nil, /* 45 */
1332 st_Nil, /* 46 */
1333 st_Nil, /* 47 */
1334 st_Nil, /* 48 */
1335 st_Nil, /* 49 */
1336 st_Nil, /* 50 */
1337 st_Nil, /* 51 */
1338 st_Nil, /* 52 */
1339 st_Nil, /* 53 */
1340 st_Nil, /* 54 */
1341 st_Nil, /* 55 */
1342 st_Nil, /* 56 */
1343 st_Nil, /* 57 */
1344 st_Nil, /* 58 */
1345 st_Nil, /* 59 */
1346 st_Nil, /* 60 */
1347 st_Nil, /* 61 */
1348 st_Nil, /* 62 */
1349 st_Nil, /* 63 */
1350 st_Nil, /* 64 */
1351 st_Nil, /* 65 */
1352 st_Nil, /* 66 */
1353 st_Nil, /* 67 */
1354 st_Nil, /* 68 */
1355 st_Nil, /* 69 */
1356 st_Nil, /* 70 */
1357 st_Nil, /* 71 */
1358 st_Nil, /* 72 */
1359 st_Nil, /* 73 */
1360 st_Nil, /* 74 */
1361 st_Nil, /* 75 */
1362 st_Nil, /* 76 */
1363 st_Nil, /* 77 */
1364 st_Nil, /* 78 */
1365 st_Nil, /* 79 */
1366 st_Nil, /* 80 */
1367 st_Nil, /* 81 */
1368 st_Nil, /* 82 */
1369 st_Nil, /* 83 */
1370 st_Nil, /* 84 */
1371 st_Nil, /* 85 */
1372 st_Nil, /* 86 */
1373 st_Nil, /* 87 */
1374 st_Nil, /* 88 */
1375 st_Nil, /* 89 */
1376 st_Nil, /* 90 */
1377 st_Nil, /* 91 */
1378 st_Nil, /* 92 */
1379 st_Nil, /* 93 */
1380 st_Nil, /* 94 */
1381 st_Nil, /* 95 */
1382 st_Nil, /* 96 */
1383 st_Nil, /* 97 */
1384 st_Nil, /* 98 */
1385 st_Nil, /* 99 */
1386 st_Block, /* 100: C_BLOCK block start/end */
1387 st_Proc, /* 101: C_FCN function start/end */
1388 st_End, /* 102: C_EOS end of struct/union/enum */
1389 st_File, /* 103: C_FILE file start */
1390 st_Nil, /* 104: C_LINE line number */
1391 st_Nil, /* 105: C_ALIAS combined type info */
1392 st_Nil, /* 106: C_HIDDEN ??? */
1393 };
1394
1395
1396 /* Keep track of different sized allocation requests. */
1397 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1398 \f
1399 /* Various statics. */
1400 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1401 static proc_t *cur_proc_ptr = (proc_t *) 0; /* current procedure header */
1402 static thead_t *top_tag_head = (thead_t *) 0; /* top level tag head */
1403 static thead_t *cur_tag_head = (thead_t *) 0; /* current tag head */
1404 #ifdef ECOFF_DEBUG
1405 static int debug = 0; /* trace functions */
1406 #endif
1407 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1408
1409
1410 /* Pseudo symbol to use when putting stabs into the symbol table. */
1411 #ifndef STABS_SYMBOL
1412 #define STABS_SYMBOL "@stabs"
1413 #endif
1414
1415 static char stabs_symbol[] = STABS_SYMBOL;
1416 \f
1417 /* Prototypes for functions defined in this file. */
1418
1419 static void add_varray_page PARAMS ((varray_t *vp));
1420 static symint_t add_string PARAMS ((varray_t *vp,
1421 struct hash_control *hash_tbl,
1422 const char *str,
1423 shash_t **ret_hash));
1424 static localsym_t *add_ecoff_symbol PARAMS ((const char *str, st_t type,
1425 sc_t storage, symbolS *sym,
1426 symint_t value,
1427 symint_t indx));
1428 static symint_t add_aux_sym_symint PARAMS ((symint_t aux_word));
1429 static symint_t add_aux_sym_rndx PARAMS ((int file_index,
1430 symint_t sym_index));
1431 static symint_t add_aux_sym_tir PARAMS ((type_info_t *t,
1432 hash_state_t state,
1433 thash_t **hash_tbl));
1434 static tag_t *get_tag PARAMS ((const char *tag, localsym_t *sym,
1435 bt_t basic_type));
1436 static void add_unknown_tag PARAMS ((tag_t *ptag));
1437 static void add_procedure PARAMS ((char *func));
1438 static void add_file PARAMS ((const char *file_name, int indx));
1439 #ifdef ECOFF_DEBUG
1440 static char *sc_to_string PARAMS ((sc_t storage_class));
1441 static char *st_to_string PARAMS ((st_t symbol_type));
1442 #endif
1443 static void obj_ecoff_def PARAMS ((int));
1444 static void obj_ecoff_dim PARAMS ((int));
1445 static void obj_ecoff_endef PARAMS ((int));
1446 static void obj_ecoff_file PARAMS ((int));
1447 static void obj_ecoff_scl PARAMS ((int));
1448 static void obj_ecoff_size PARAMS ((int));
1449 static void obj_ecoff_tag PARAMS ((int));
1450 static void obj_ecoff_type PARAMS ((int));
1451 static void obj_ecoff_val PARAMS ((int));
1452 static void obj_ecoff_ent PARAMS ((int));
1453 static void obj_ecoff_begin PARAMS ((int));
1454 static void obj_ecoff_bend PARAMS ((int));
1455 static void obj_ecoff_end PARAMS ((int));
1456 static void obj_ecoff_fmask PARAMS ((int));
1457 static void obj_ecoff_frame PARAMS ((int));
1458 static void obj_ecoff_loc PARAMS ((int));
1459 static void obj_ecoff_mask PARAMS ((int));
1460 static void mark_stabs PARAMS ((int));
1461 static char *ecoff_add_bytes PARAMS ((char **buf, char **bufend,
1462 char *bufptr, unsigned long need));
1463 static unsigned long ecoff_padding_adjust PARAMS ((char **buf,
1464 char **bufend,
1465 unsigned long offset,
1466 char **bufptrptr));
1467 static unsigned long ecoff_build_lineno PARAMS ((char **buf, char **bufend,
1468 unsigned long offset,
1469 long *linecntptr));
1470 static unsigned long ecoff_build_symbols PARAMS ((char **buf, char **bufend,
1471 unsigned long offset,
1472 char **extbuf,
1473 char **extbufend,
1474 unsigned long *extoffset,
1475 varray_t *ext_strings,
1476 struct hash_control *));
1477 static unsigned long ecoff_build_procs PARAMS ((char **buf, char **bufend,
1478 unsigned long offset));
1479 static unsigned long ecoff_build_aux PARAMS ((char **buf, char **bufend,
1480 unsigned long offset));
1481 static unsigned long ecoff_build_strings PARAMS ((char **buf, char **bufend,
1482 unsigned long offset,
1483 varray_t *vp));
1484 static unsigned long ecoff_build_ss PARAMS ((char **buf, char **bufend,
1485 unsigned long offset));
1486 static unsigned long ecoff_build_fdr PARAMS ((char **buf, char **bufend,
1487 unsigned long offset));
1488 static page_t *allocate_cluster PARAMS ((unsigned long npages));
1489 static page_t *allocate_page PARAMS ((void));
1490 static scope_t *allocate_scope PARAMS ((void));
1491 static void free_scope PARAMS ((scope_t *ptr));
1492 static vlinks_t *allocate_vlinks PARAMS ((void));
1493 static shash_t *allocate_shash PARAMS ((void));
1494 static thash_t *allocate_thash PARAMS ((void));
1495 static tag_t *allocate_tag PARAMS ((void));
1496 static void free_tag PARAMS ((tag_t *ptr));
1497 static forward_t *allocate_forward PARAMS ((void));
1498 static thead_t *allocate_thead PARAMS ((void));
1499 static void free_thead PARAMS ((thead_t *ptr));
1500 static lineno_list_t *allocate_lineno_list PARAMS ((void));
1501
1502 /* Why isn't this in some header file somewhere? In fact, is it even
1503 necessary? */
1504 #define SKIP_WHITESPACES() \
1505 do \
1506 { \
1507 while (*input_line_pointer == ' ' \
1508 || *input_line_pointer == '\t') \
1509 ++input_line_pointer; \
1510 } \
1511 while (0)
1512 \f
1513 /* These are the pseudo-ops we support in this file. Only those
1514 relating to debugging information are supported here.
1515
1516 The following pseudo-ops from the Kane and Heinrich MIPS book
1517 should be defined here, but are currently unsupported: .aent,
1518 .bgnb, .endb, .verstamp, .vreg.
1519
1520 The following pseudo-ops from the Kane and Heinrich MIPS book are
1521 MIPS CPU specific, and should be defined by tc-mips.c: .alias,
1522 .extern, .galive, .gjaldef, .gjrlive, .livereg, .noalias, .option,
1523 .rdata, .sdata, .set.
1524
1525 The following pseudo-ops from the Kane and Heinrich MIPS book are
1526 not MIPS CPU specific, but are also not ECOFF specific. I have
1527 only listed the ones which are not already in read.c. It's not
1528 completely clear where these should be defined, but tc-mips.c is
1529 probably the most reasonable place: .asciiz, .asm0, .endr, .err,
1530 .half, .lab, .repeat, .struct, .weakext. */
1531
1532 const pseudo_typeS obj_pseudo_table[] =
1533 {
1534 /* COFF style debugging information. .ln is not used; .loc is used
1535 instead. */
1536 { "def", obj_ecoff_def, 0 },
1537 { "dim", obj_ecoff_dim, 0 },
1538 { "endef", obj_ecoff_endef, 0 },
1539 { "file", obj_ecoff_file, 0 },
1540 { "scl", obj_ecoff_scl, 0 },
1541 { "size", obj_ecoff_size, 0 },
1542 { "tag", obj_ecoff_tag, 0 },
1543 { "type", obj_ecoff_type, 0 },
1544 { "val", obj_ecoff_val, 0 },
1545
1546 /* ECOFF specific debugging information. */
1547 { "begin", obj_ecoff_begin, 0 },
1548 { "bend", obj_ecoff_bend, 0 },
1549 { "end", obj_ecoff_end, 0 },
1550 { "ent", obj_ecoff_ent, 0 },
1551 { "fmask", obj_ecoff_fmask, 0 },
1552 { "frame", obj_ecoff_frame, 0 },
1553 { "loc", obj_ecoff_loc, 0 },
1554 { "mask", obj_ecoff_mask, 0 },
1555
1556 /* Sentinel. */
1557 { NULL }
1558 };
1559 \f
1560 /* This function is called when the assembler starts up. */
1561
1562 void
1563 obj_read_begin_hook ()
1564 {
1565 tag_hash = hash_new ();
1566 top_tag_head = allocate_thead ();
1567 top_tag_head->first_tag = (tag_t *) NULL;
1568 top_tag_head->free = (thead_t *) NULL;
1569 top_tag_head->prev = cur_tag_head;
1570 cur_tag_head = top_tag_head;
1571 }
1572
1573 /* This function is called when a symbol is created. */
1574
1575 void
1576 obj_symbol_new_hook (symbolP)
1577 symbolS *symbolP;
1578 {
1579 if (cur_file_ptr == (efdr_t *) NULL)
1580 add_file ((const char *) NULL, 0);
1581 symbolP->ecoff_file = cur_file_ptr;
1582 symbolP->ecoff_symbol = 0;
1583 symbolP->ecoff_undefined = 0;
1584 }
1585 \f
1586 /* Add a page to a varray object. */
1587
1588 static void
1589 add_varray_page (vp)
1590 varray_t *vp; /* varray to add page to */
1591 {
1592 vlinks_t *new_links = allocate_vlinks ();
1593
1594 #ifdef MALLOC_CHECK
1595 if (vp->object_size > 1)
1596 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1597 else
1598 #endif
1599 new_links->datum = allocate_page ();
1600
1601 alloc_counts[(int)alloc_type_varray].total_alloc++;
1602 alloc_counts[(int)alloc_type_varray].total_pages++;
1603
1604 new_links->start_index = vp->num_allocated;
1605 vp->objects_last_page = 0;
1606
1607 if (vp->first == (vlinks_t *) NULL) /* first allocation? */
1608 vp->first = vp->last = new_links;
1609 else
1610 { /* 2nd or greater allocation */
1611 new_links->prev = vp->last;
1612 vp->last->next = new_links;
1613 vp->last = new_links;
1614 }
1615 }
1616 \f
1617 /* Add a string (and null pad) to one of the string tables. */
1618
1619 static symint_t
1620 add_string (vp, hash_tbl, str, ret_hash)
1621 varray_t *vp; /* string obstack */
1622 struct hash_control *hash_tbl; /* ptr to hash table */
1623 const char *str; /* string */
1624 shash_t **ret_hash; /* return hash pointer */
1625 {
1626 register unsigned long len = strlen (str);
1627 register shash_t *hash_ptr;
1628
1629 if (len >= PAGE_USIZE)
1630 as_fatal ("String too big (%lu bytes)", len);
1631
1632 hash_ptr = (shash_t *) hash_find (hash_tbl, str);
1633 if (hash_ptr == (shash_t *) NULL)
1634 {
1635 register const char *err;
1636
1637 if (vp->objects_last_page + len >= PAGE_USIZE)
1638 {
1639 vp->num_allocated =
1640 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1641 add_varray_page (vp);
1642 }
1643
1644 hash_ptr = allocate_shash ();
1645 hash_ptr->indx = vp->num_allocated;
1646
1647 hash_ptr->string = &vp->last->datum->byte[vp->objects_last_page];
1648
1649 vp->objects_last_page += len + 1;
1650 vp->num_allocated += len + 1;
1651
1652 strcpy (hash_ptr->string, str);
1653
1654 err = hash_insert (hash_tbl, str, (char *) hash_ptr);
1655 if (err)
1656 as_fatal ("Inserting \"%s\" into string hash table: %s",
1657 str, err);
1658 }
1659
1660 if (ret_hash != (shash_t **) NULL)
1661 *ret_hash = hash_ptr;
1662
1663 return hash_ptr->indx;
1664 }
1665 \f
1666 /* Add debugging information for a symbol. */
1667
1668 static localsym_t *
1669 add_ecoff_symbol (str, type, storage, sym_value, value, indx)
1670 const char *str; /* symbol name */
1671 st_t type; /* symbol type */
1672 sc_t storage; /* storage class */
1673 symbolS *sym_value; /* associated symbol. */
1674 symint_t value; /* value of symbol */
1675 symint_t indx; /* index to local/aux. syms */
1676 {
1677 localsym_t *psym;
1678 register scope_t *pscope;
1679 register thead_t *ptag_head;
1680 register tag_t *ptag;
1681 register tag_t *ptag_next;
1682 register varray_t *vp;
1683 register int scope_delta = 0;
1684 shash_t *hash_ptr = (shash_t *) NULL;
1685
1686 if (cur_file_ptr == (efdr_t *) NULL)
1687 as_fatal ("no current file pointer");
1688
1689 vp = &cur_file_ptr->symbols;
1690
1691 if (vp->objects_last_page == vp->objects_per_page)
1692 add_varray_page (vp);
1693
1694 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1695
1696 if (str == (const char *) NULL && sym_value != (symbolS *) NULL)
1697 psym->name = S_GET_NAME (sym_value);
1698 else
1699 psym->name = str;
1700 psym->as_sym = sym_value;
1701 if (sym_value != (symbolS *) NULL)
1702 sym_value->ecoff_symbol = 1;
1703 psym->file_ptr = cur_file_ptr;
1704 psym->proc_ptr = cur_proc_ptr;
1705 psym->begin_ptr = (localsym_t *) NULL;
1706 psym->index_ptr = (aux_t *) NULL;
1707 psym->forward_ref = (forward_t *) NULL;
1708 psym->sym_index = -1;
1709 psym->ecoff_sym.value = value;
1710 psym->ecoff_sym.st = (unsigned) type;
1711 psym->ecoff_sym.sc = (unsigned) storage;
1712 psym->ecoff_sym.index = indx;
1713
1714 /* If there is an associated symbol, we wait until the end of the
1715 assembly before deciding where to put the name (it may be just an
1716 external symbol). Otherwise, this is just a debugging symbol and
1717 the name should go with the current file. */
1718 if (sym_value == (symbolS *) NULL)
1719 psym->ecoff_sym.iss = ((str == (const char *) NULL)
1720 ? 0
1721 : add_string (&cur_file_ptr->strings,
1722 cur_file_ptr->str_hash,
1723 str,
1724 &hash_ptr));
1725
1726 ++vp->num_allocated;
1727
1728 if (ECOFF_IS_STAB (&psym->ecoff_sym))
1729 return psym;
1730
1731 /* Save the symbol within the hash table if this is a static
1732 item, and it has a name. */
1733 if (hash_ptr != (shash_t *) NULL
1734 && (type == st_Global || type == st_Static || type == st_Label
1735 || type == st_Proc || type == st_StaticProc))
1736 hash_ptr->sym_ptr = psym;
1737
1738 /* push or pop a scope if appropriate. */
1739 switch (type)
1740 {
1741 default:
1742 break;
1743
1744 case st_File: /* beginning of file */
1745 case st_Proc: /* procedure */
1746 case st_StaticProc: /* static procedure */
1747 case st_Block: /* begin scope */
1748 pscope = allocate_scope ();
1749 pscope->prev = cur_file_ptr->cur_scope;
1750 pscope->lsym = psym;
1751 pscope->type = type;
1752 cur_file_ptr->cur_scope = pscope;
1753
1754 if (type != st_File)
1755 scope_delta = 1;
1756
1757 /* For every block type except file, struct, union, or
1758 enumeration blocks, push a level on the tag stack. We omit
1759 file types, so that tags can span file boundaries. */
1760 if (type != st_File && storage != sc_Info)
1761 {
1762 ptag_head = allocate_thead ();
1763 ptag_head->first_tag = 0;
1764 ptag_head->prev = cur_tag_head;
1765 cur_tag_head = ptag_head;
1766 }
1767 break;
1768
1769 case st_End:
1770 pscope = cur_file_ptr->cur_scope;
1771 if (pscope == (scope_t *) NULL)
1772 as_fatal ("too many st_End's");
1773 else
1774 {
1775 st_t begin_type = (st_t) pscope->lsym->ecoff_sym.st;
1776
1777 psym->begin_ptr = pscope->lsym;
1778
1779 if (begin_type != st_File)
1780 scope_delta = -1;
1781
1782 /* Except for file, structure, union, or enumeration end
1783 blocks remove all tags created within this scope. */
1784 if (begin_type != st_File && storage != sc_Info)
1785 {
1786 ptag_head = cur_tag_head;
1787 cur_tag_head = ptag_head->prev;
1788
1789 for (ptag = ptag_head->first_tag;
1790 ptag != (tag_t *) NULL;
1791 ptag = ptag_next)
1792 {
1793 if (ptag->forward_ref != (forward_t *) NULL)
1794 add_unknown_tag (ptag);
1795
1796 ptag_next = ptag->same_block;
1797 ptag->hash_ptr->tag_ptr = ptag->same_name;
1798 free_tag (ptag);
1799 }
1800
1801 free_thead (ptag_head);
1802 }
1803
1804 cur_file_ptr->cur_scope = pscope->prev;
1805
1806 /* block begin gets next sym #. This is set when we know
1807 the symbol index value. */
1808
1809 /* Functions push two or more aux words as follows:
1810 1st word: index+1 of the end symbol (filled in later).
1811 2nd word: type of the function (plus any aux words needed).
1812 Also, tie the external pointer back to the function begin symbol. */
1813 if (begin_type != st_File && begin_type != st_Block)
1814 {
1815 symint_t ty;
1816 varray_t *svp = &cur_file_ptr->aux_syms;
1817
1818 pscope->lsym->ecoff_sym.index = add_aux_sym_symint (0);
1819 pscope->lsym->index_ptr =
1820 &svp->last->datum->aux[svp->objects_last_page - 1];
1821 ty = add_aux_sym_tir (&last_func_type_info,
1822 hash_no,
1823 &cur_file_ptr->thash_head[0]);
1824 /*
1825 if (last_func_sym_value != (symbolS *) NULL)
1826 {
1827 last_func_sym_value->ifd = cur_file_ptr->file_index;
1828 last_func_sym_value->index = ty;
1829 }
1830 */
1831 }
1832
1833 free_scope (pscope);
1834 }
1835 }
1836
1837 cur_file_ptr->nested_scopes += scope_delta;
1838
1839 #ifdef ECOFF_DEBUG
1840 if (debug && type != st_File
1841 && (debug > 2 || type == st_Block || type == st_End
1842 || type == st_Proc || type == st_StaticProc))
1843 {
1844 char *sc_str = sc_to_string (storage);
1845 char *st_str = st_to_string (type);
1846 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1847
1848 fprintf (stderr,
1849 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1850 value, depth, sc_str);
1851
1852 if (str_start && str_end_p1 - str_start > 0)
1853 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
1854 else
1855 {
1856 unsigned long len = strlen (st_str);
1857 fprintf (stderr, " st= %.*s\n", len-1, st_str);
1858 }
1859 }
1860 #endif
1861
1862 return psym;
1863 }
1864 \f
1865 /* Add an auxiliary symbol (passing a symint). This is actually used
1866 for integral aux types, not just symints. */
1867
1868 static symint_t
1869 add_aux_sym_symint (aux_word)
1870 symint_t aux_word; /* auxiliary information word */
1871 {
1872 register varray_t *vp;
1873 register aux_t *aux_ptr;
1874
1875 if (cur_file_ptr == (efdr_t *) NULL)
1876 as_fatal ("no current file pointer");
1877
1878 vp = &cur_file_ptr->aux_syms;
1879
1880 if (vp->objects_last_page == vp->objects_per_page)
1881 add_varray_page (vp);
1882
1883 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1884 aux_ptr->type = aux_isym;
1885 aux_ptr->data.isym = aux_word;
1886
1887 return vp->num_allocated++;
1888 }
1889
1890
1891 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1892
1893 static symint_t
1894 add_aux_sym_rndx (file_index, sym_index)
1895 int file_index;
1896 symint_t sym_index;
1897 {
1898 register varray_t *vp;
1899 register aux_t *aux_ptr;
1900
1901 if (cur_file_ptr == (efdr_t *) NULL)
1902 as_fatal ("no current file pointer");
1903
1904 vp = &cur_file_ptr->aux_syms;
1905
1906 if (vp->objects_last_page == vp->objects_per_page)
1907 add_varray_page (vp);
1908
1909 aux_ptr = &vp->last->datum->aux[vp->objects_last_page++];
1910 aux_ptr->type = aux_rndx;
1911 aux_ptr->data.rndx.rfd = file_index;
1912 aux_ptr->data.rndx.index = sym_index;
1913
1914 return vp->num_allocated++;
1915 }
1916 \f
1917 /* Add an auxiliary symbol (passing the basic type and possibly
1918 type qualifiers). */
1919
1920 static symint_t
1921 add_aux_sym_tir (t, state, hash_tbl)
1922 type_info_t *t; /* current type information */
1923 hash_state_t state; /* whether to hash type or not */
1924 thash_t **hash_tbl; /* pointer to hash table to use */
1925 {
1926 register varray_t *vp;
1927 register aux_t *aux_ptr;
1928 static AUXU init_aux;
1929 symint_t ret;
1930 int i;
1931 AUXU aux;
1932
1933 if (cur_file_ptr == (efdr_t *) NULL)
1934 as_fatal ("no current file pointer");
1935
1936 vp = &cur_file_ptr->aux_syms;
1937
1938 aux = init_aux;
1939 aux.ti.bt = (int) t->basic_type;
1940 aux.ti.continued = 0;
1941 aux.ti.fBitfield = t->bitfield;
1942
1943 aux.ti.tq0 = (int) t->type_qualifiers[0];
1944 aux.ti.tq1 = (int) t->type_qualifiers[1];
1945 aux.ti.tq2 = (int) t->type_qualifiers[2];
1946 aux.ti.tq3 = (int) t->type_qualifiers[3];
1947 aux.ti.tq4 = (int) t->type_qualifiers[4];
1948 aux.ti.tq5 = (int) t->type_qualifiers[5];
1949
1950
1951 /* For anything that adds additional information, we must not hash,
1952 so check here, and reset our state. */
1953
1954 if (state != hash_no
1955 && (t->type_qualifiers[0] == tq_Array
1956 || t->type_qualifiers[1] == tq_Array
1957 || t->type_qualifiers[2] == tq_Array
1958 || t->type_qualifiers[3] == tq_Array
1959 || t->type_qualifiers[4] == tq_Array
1960 || t->type_qualifiers[5] == tq_Array
1961 || t->basic_type == bt_Struct
1962 || t->basic_type == bt_Union
1963 || t->basic_type == bt_Enum
1964 || t->bitfield
1965 || t->num_dims > 0))
1966 state = hash_no;
1967
1968 /* See if we can hash this type, and save some space, but some types
1969 can't be hashed (because they contain arrays or continuations),
1970 and others can be put into the hash list, but cannot use existing
1971 types because other aux entries precede this one. */
1972
1973 if (state != hash_no)
1974 {
1975 register thash_t *hash_ptr;
1976 register symint_t hi;
1977
1978 hi = aux.isym & ((1 << HASHBITS) - 1);
1979 hi %= THASH_SIZE;
1980
1981 for (hash_ptr = hash_tbl[hi];
1982 hash_ptr != (thash_t *)0;
1983 hash_ptr = hash_ptr->next)
1984 {
1985 if (aux.isym == hash_ptr->type.isym)
1986 break;
1987 }
1988
1989 if (hash_ptr != (thash_t *) NULL && state == hash_yes)
1990 return hash_ptr->indx;
1991
1992 if (hash_ptr == (thash_t *) NULL)
1993 {
1994 hash_ptr = allocate_thash ();
1995 hash_ptr->next = hash_tbl[hi];
1996 hash_ptr->type = aux;
1997 hash_ptr->indx = vp->num_allocated;
1998 hash_tbl[hi] = hash_ptr;
1999 }
2000 }
2001
2002 /* Everything is set up, add the aux symbol. */
2003 if (vp->objects_last_page == vp->objects_per_page)
2004 add_varray_page (vp);
2005
2006 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2007 aux_ptr->type = aux_tir;
2008 aux_ptr->data = aux;
2009
2010 ret = vp->num_allocated++;
2011
2012 /* Add bitfield length if it exists.
2013
2014 NOTE: Mips documentation claims bitfield goes at the end of the
2015 AUX record, but the DECstation compiler emits it here.
2016 (This would only make a difference for enum bitfields.)
2017
2018 Also note: We use the last size given since gcc may emit 2
2019 for an enum bitfield. */
2020
2021 if (t->bitfield)
2022 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2023
2024
2025 /* Add tag information if needed. Structure, union, and enum
2026 references add 2 aux symbols: a [file index, symbol index]
2027 pointer to the structure type, and the current file index. */
2028
2029 if (t->basic_type == bt_Struct
2030 || t->basic_type == bt_Union
2031 || t->basic_type == bt_Enum)
2032 {
2033 register symint_t file_index = t->tag_ptr->ifd;
2034 register localsym_t *sym = t->tag_ptr->sym;
2035 register forward_t *forward_ref = allocate_forward ();
2036
2037 if (sym != (localsym_t *) NULL)
2038 {
2039 forward_ref->next = sym->forward_ref;
2040 sym->forward_ref = forward_ref;
2041 }
2042 else
2043 {
2044 forward_ref->next = t->tag_ptr->forward_ref;
2045 t->tag_ptr->forward_ref = forward_ref;
2046 }
2047
2048 (void) add_aux_sym_rndx (ST_RFDESCAPE, indexNil);
2049 forward_ref->index_ptr
2050 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2051
2052 (void) add_aux_sym_symint (file_index);
2053 forward_ref->ifd_ptr
2054 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2055 }
2056
2057 /* Add information about array bounds if they exist. */
2058 for (i = 0; i < t->num_dims; i++)
2059 {
2060 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2061 cur_file_ptr->int_type);
2062
2063 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2064 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2065 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2066 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2067 ? 0
2068 : (t->sizes[i] * 8) / t->dimensions[i]);
2069 };
2070
2071 /* NOTE: Mips documentation claims that the bitfield width goes here.
2072 But it needs to be emitted earlier. */
2073
2074 return ret;
2075 }
2076 \f
2077 /* Add a tag to the tag table (unless it already exists). */
2078
2079 static tag_t *
2080 get_tag (tag, sym, basic_type)
2081 const char *tag; /* tag name */
2082 localsym_t *sym; /* tag start block */
2083 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2084 {
2085 shash_t *hash_ptr;
2086 const char *err;
2087 tag_t *tag_ptr;
2088
2089 if (cur_file_ptr == (efdr_t *) NULL)
2090 as_fatal ("no current file pointer");
2091
2092 hash_ptr = (shash_t *) hash_find (tag_hash, tag);
2093
2094 if (hash_ptr != (shash_t *) NULL
2095 && hash_ptr->tag_ptr != (tag_t *) NULL)
2096 {
2097 tag_ptr = hash_ptr->tag_ptr;
2098 if (sym != (localsym_t *) NULL)
2099 {
2100 tag_ptr->basic_type = basic_type;
2101 tag_ptr->ifd = cur_file_ptr->file_index;
2102 tag_ptr->sym = sym;
2103 }
2104 return tag_ptr;
2105 }
2106
2107 if (hash_ptr == (shash_t *) NULL)
2108 {
2109 char *perm;
2110
2111 perm = xmalloc ((unsigned long) (strlen (tag) + 1));
2112 strcpy (perm, tag);
2113 hash_ptr = allocate_shash ();
2114 err = hash_insert (tag_hash, perm, (char *) hash_ptr);
2115 if (err)
2116 as_fatal ("Inserting \"%s\" into tag hash table: %s",
2117 tag, err);
2118 hash_ptr->string = perm;
2119 }
2120
2121 tag_ptr = allocate_tag ();
2122 tag_ptr->forward_ref = (forward_t *) NULL;
2123 tag_ptr->hash_ptr = hash_ptr;
2124 tag_ptr->same_name = hash_ptr->tag_ptr;
2125 tag_ptr->basic_type = basic_type;
2126 tag_ptr->sym = sym;
2127 tag_ptr->ifd = ((sym == (localsym_t *) NULL)
2128 ? (symint_t) -1
2129 : cur_file_ptr->file_index);
2130 tag_ptr->same_block = cur_tag_head->first_tag;
2131
2132 cur_tag_head->first_tag = tag_ptr;
2133 hash_ptr->tag_ptr = tag_ptr;
2134
2135 return tag_ptr;
2136 }
2137 \f
2138 /* Add an unknown {struct, union, enum} tag. */
2139
2140 static void
2141 add_unknown_tag (ptag)
2142 tag_t *ptag; /* pointer to tag information */
2143 {
2144 shash_t *hash_ptr = ptag->hash_ptr;
2145 char *name = hash_ptr->string;
2146 localsym_t *sym;
2147 forward_t **pf;
2148
2149 #ifdef ECOFF_DEBUG
2150 if (debug > 1)
2151 {
2152 char *agg_type = "{unknown aggregate type}";
2153 switch (ptag->basic_type)
2154 {
2155 case bt_Struct: agg_type = "struct"; break;
2156 case bt_Union: agg_type = "union"; break;
2157 case bt_Enum: agg_type = "enum"; break;
2158 default: break;
2159 }
2160
2161 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2162 hash_ptr->len, name_start);
2163 }
2164 #endif
2165
2166 sym = add_ecoff_symbol (name,
2167 st_Block,
2168 sc_Info,
2169 (symbolS *) NULL,
2170 (symint_t) 0,
2171 (symint_t) 0);
2172
2173 (void) add_ecoff_symbol (name,
2174 st_End,
2175 sc_Info,
2176 (symbolS *) NULL,
2177 (symint_t) 0,
2178 (symint_t) 0);
2179
2180 for (pf = &sym->forward_ref; *pf != (forward_t *) NULL; pf = &(*pf)->next)
2181 ;
2182 *pf = ptag->forward_ref;
2183 }
2184 \f
2185 /* Add a procedure to the current file's list of procedures, and record
2186 this is the current procedure. */
2187
2188 static void
2189 add_procedure (func)
2190 char *func; /* func name */
2191 {
2192 register varray_t *vp;
2193 register proc_t *new_proc_ptr;
2194
2195 #ifdef ECOFF_DEBUG
2196 if (debug)
2197 fputc ('\n', stderr);
2198 #endif
2199
2200 if (cur_file_ptr == (efdr_t *) NULL)
2201 as_fatal ("no current file pointer");
2202
2203 vp = &cur_file_ptr->procs;
2204
2205 if (vp->objects_last_page == vp->objects_per_page)
2206 add_varray_page (vp);
2207
2208 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[vp->objects_last_page++];
2209
2210 vp->num_allocated++;
2211
2212 new_proc_ptr->pdr.isym = -1;
2213 new_proc_ptr->pdr.iline = -1;
2214 new_proc_ptr->pdr.lnLow = -1;
2215 new_proc_ptr->pdr.lnHigh = -1;
2216
2217 /* Push the start of the function. */
2218 new_proc_ptr->sym = add_ecoff_symbol ((const char *) NULL, st_Proc, sc_Text,
2219 symbol_find_or_make (func),
2220 (symint_t) 0, (symint_t) 0);
2221
2222 ++proc_cnt;
2223
2224 /* Fill in the linenos preceding the .ent, if any. */
2225 if (noproc_lineno != (lineno_list_t *) NULL)
2226 {
2227 lineno_list_t *l;
2228
2229 for (l = noproc_lineno; l != (lineno_list_t *) NULL; l = l->next)
2230 l->proc = new_proc_ptr;
2231 *last_lineno_ptr = noproc_lineno;
2232 while (*last_lineno_ptr != NULL)
2233 last_lineno_ptr = &(*last_lineno_ptr)->next;
2234 noproc_lineno = (lineno_list_t *) NULL;
2235 }
2236 }
2237 \f
2238 /* Add a new filename, and set up all of the file relative
2239 virtual arrays (strings, symbols, aux syms, etc.). Record
2240 where the current file structure lives. */
2241
2242 static void
2243 add_file (file_name, indx)
2244 const char *file_name; /* file name */
2245 int indx;
2246 {
2247 register int first_ch;
2248 register efdr_t *fil_ptr;
2249
2250 #ifdef ECOFF_DEBUG
2251 if (debug)
2252 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2253 #endif
2254
2255 /* If the file name is NULL, then no .file symbol appeared, and we
2256 want to use the actual file name. Unfortunately, we don't have a
2257 clean way to access it. */
2258 if (file_name == (const char *) NULL)
2259 {
2260 extern char *logical_input_file;
2261 extern char *physical_input_file;
2262
2263 if (first_file != (efdr_t *) NULL)
2264 as_fatal ("fake .file after real one");
2265 file_name = logical_input_file;
2266 if (file_name == (const char *) NULL)
2267 {
2268 file_name = physical_input_file;
2269 if (file_name == (const char *) NULL)
2270 file_name = "UNKNOWN";
2271 }
2272 }
2273
2274 #ifndef NO_LISTING
2275 if (listing)
2276 listing_source_file (file_name);
2277 #endif
2278
2279 /* If we're creating stabs, then we don't actually make a new FDR.
2280 Instead, we just create a stabs symbol. */
2281 if (stabs_seen)
2282 {
2283 (void) add_ecoff_symbol (file_name, st_Nil, sc_Nil,
2284 symbol_new ("L0\001", now_seg,
2285 (valueT) frag_now_fix (),
2286 frag_now),
2287 0, ECOFF_MARK_STAB (N_SOL));
2288 return;
2289 }
2290
2291 first_ch = *file_name;
2292
2293 /* See if the file has already been created. */
2294 for (fil_ptr = first_file;
2295 fil_ptr != (efdr_t *) NULL;
2296 fil_ptr = fil_ptr->next_file)
2297 {
2298 if (first_ch == fil_ptr->name[0]
2299 && strcmp (file_name, fil_ptr->name) == 0)
2300 {
2301 cur_file_ptr = fil_ptr;
2302 break;
2303 }
2304 }
2305
2306 /* If this is a new file, create it. */
2307 if (fil_ptr == (efdr_t *) NULL)
2308 {
2309 if (file_desc.objects_last_page == file_desc.objects_per_page)
2310 add_varray_page (&file_desc);
2311
2312 fil_ptr = cur_file_ptr =
2313 &file_desc.last->datum->file[file_desc.objects_last_page++];
2314 *fil_ptr = init_file;
2315
2316 fil_ptr->file_index = indx;
2317 ++file_desc.num_allocated;
2318
2319 /* Allocate the string hash table. */
2320 fil_ptr->str_hash = hash_new ();
2321
2322 /* Make sure 0 byte in string table is null */
2323 add_string (&fil_ptr->strings,
2324 fil_ptr->str_hash,
2325 "",
2326 (shash_t **)0);
2327
2328 if (strlen (file_name) > PAGE_USIZE - 2)
2329 as_fatal ("Filename goes over one page boundary.");
2330
2331 /* Push the start of the filename. We assume that the filename
2332 will be stored at string offset 1. */
2333 (void) add_ecoff_symbol (file_name, st_File, sc_Text,
2334 (symbolS *) NULL,
2335 (symint_t) 0, (symint_t) 0);
2336 fil_ptr->fdr.rss = 1;
2337 fil_ptr->name = &fil_ptr->strings.last->datum->byte[1];
2338
2339 /* Update the linked list of file descriptors. */
2340 *last_file_ptr = fil_ptr;
2341 last_file_ptr = &fil_ptr->next_file;
2342
2343 /* Add void & int types to the file (void should be first to catch
2344 errant 0's within the index fields). */
2345 fil_ptr->void_type = add_aux_sym_tir (&void_type_info,
2346 hash_yes,
2347 &cur_file_ptr->thash_head[0]);
2348
2349 fil_ptr->int_type = add_aux_sym_tir (&int_type_info,
2350 hash_yes,
2351 &cur_file_ptr->thash_head[0]);
2352 }
2353 }
2354 \f
2355 #ifdef ECOFF_DEBUG
2356
2357 /* Convert storage class to string. */
2358
2359 static char *
2360 sc_to_string(storage_class)
2361 sc_t storage_class;
2362 {
2363 switch(storage_class)
2364 {
2365 case sc_Nil: return "Nil,";
2366 case sc_Text: return "Text,";
2367 case sc_Data: return "Data,";
2368 case sc_Bss: return "Bss,";
2369 case sc_Register: return "Register,";
2370 case sc_Abs: return "Abs,";
2371 case sc_Undefined: return "Undefined,";
2372 case sc_CdbLocal: return "CdbLocal,";
2373 case sc_Bits: return "Bits,";
2374 case sc_CdbSystem: return "CdbSystem,";
2375 case sc_RegImage: return "RegImage,";
2376 case sc_Info: return "Info,";
2377 case sc_UserStruct: return "UserStruct,";
2378 case sc_SData: return "SData,";
2379 case sc_SBss: return "SBss,";
2380 case sc_RData: return "RData,";
2381 case sc_Var: return "Var,";
2382 case sc_Common: return "Common,";
2383 case sc_SCommon: return "SCommon,";
2384 case sc_VarRegister: return "VarRegister,";
2385 case sc_Variant: return "Variant,";
2386 case sc_SUndefined: return "SUndefined,";
2387 case sc_Init: return "Init,";
2388 case sc_Max: return "Max,";
2389 }
2390
2391 return "???,";
2392 }
2393
2394 #endif /* DEBUG */
2395 \f
2396 #ifdef ECOFF_DEBUG
2397
2398 /* Convert symbol type to string. */
2399
2400 static char *
2401 st_to_string(symbol_type)
2402 st_t symbol_type;
2403 {
2404 switch(symbol_type)
2405 {
2406 case st_Nil: return "Nil,";
2407 case st_Global: return "Global,";
2408 case st_Static: return "Static,";
2409 case st_Param: return "Param,";
2410 case st_Local: return "Local,";
2411 case st_Label: return "Label,";
2412 case st_Proc: return "Proc,";
2413 case st_Block: return "Block,";
2414 case st_End: return "End,";
2415 case st_Member: return "Member,";
2416 case st_Typedef: return "Typedef,";
2417 case st_File: return "File,";
2418 case st_RegReloc: return "RegReloc,";
2419 case st_Forward: return "Forward,";
2420 case st_StaticProc: return "StaticProc,";
2421 case st_Constant: return "Constant,";
2422 case st_Str: return "String,";
2423 case st_Number: return "Number,";
2424 case st_Expr: return "Expr,";
2425 case st_Type: return "Type,";
2426 case st_Max: return "Max,";
2427 }
2428
2429 return "???,";
2430 }
2431
2432 #endif /* DEBUG */
2433 \f
2434 /* Parse .begin directives which have a label as the first argument
2435 which gives the location of the start of the block. */
2436
2437 static void
2438 obj_ecoff_begin (ignore)
2439 int ignore;
2440 {
2441 char *name;
2442 char name_end;
2443
2444 if (cur_file_ptr == (efdr_t *) NULL)
2445 {
2446 as_warn (".begin directive without a preceding .file directive");
2447 demand_empty_rest_of_line ();
2448 return;
2449 }
2450
2451 if (cur_proc_ptr == (proc_t *) NULL)
2452 {
2453 as_warn (".begin directive without a preceding .ent directive");
2454 demand_empty_rest_of_line ();
2455 return;
2456 }
2457
2458 name = input_line_pointer;
2459 name_end = get_symbol_end ();
2460
2461 (void) add_ecoff_symbol ((const char *) NULL, st_Block, sc_Text,
2462 symbol_find_or_make (name),
2463 (symint_t) 0, (symint_t) 0);
2464
2465 *input_line_pointer = name_end;
2466
2467 /* The line number follows, but we don't use it. */
2468 (void) get_absolute_expression ();
2469 demand_empty_rest_of_line ();
2470 }
2471 \f
2472 /* Parse .bend directives which have a label as the first argument
2473 which gives the location of the end of the block. */
2474
2475 static void
2476 obj_ecoff_bend (ignore)
2477 int ignore;
2478 {
2479 char *name;
2480 char name_end;
2481 symbolS *endsym;
2482
2483 if (cur_file_ptr == (efdr_t *) NULL)
2484 {
2485 as_warn (".bend directive without a preceding .file directive");
2486 demand_empty_rest_of_line ();
2487 return;
2488 }
2489
2490 if (cur_proc_ptr == (proc_t *) NULL)
2491 {
2492 as_warn (".bend directive without a preceding .ent directive");
2493 demand_empty_rest_of_line ();
2494 return;
2495 }
2496
2497 name = input_line_pointer;
2498 name_end = get_symbol_end ();
2499
2500 /* The value is the distance between the .bend directive and the
2501 corresponding symbol. We fill in the offset when we write out
2502 the symbol. */
2503 endsym = symbol_find (name);
2504 if (endsym == (symbolS *) NULL)
2505 as_warn (".bend directive names unknown symbol");
2506 else
2507 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text, endsym,
2508 (symint_t) 0, (symint_t) 0);
2509
2510 *input_line_pointer = name_end;
2511
2512 /* The line number follows, but we don't use it. */
2513 (void) get_absolute_expression ();
2514 demand_empty_rest_of_line ();
2515 }
2516 \f
2517 /* COFF debugging information is provided as a series of directives
2518 (.def, .scl, etc.). We build up information as we read the
2519 directives in the following static variables, and file it away when
2520 we reach the .endef directive. */
2521 static char *coff_sym_name;
2522 static type_info_t coff_type;
2523 static sc_t coff_storage_class;
2524 static st_t coff_symbol_typ;
2525 static int coff_is_function;
2526 static char *coff_tag;
2527 static valueT coff_value;
2528 symbolS *coff_sym_value;
2529 static int coff_inside_enumeration;
2530
2531 /* Handle a .def directive: start defining a symbol. */
2532
2533 static void
2534 obj_ecoff_def (ignore)
2535 int ignore;
2536 {
2537 char *name;
2538 char name_end;
2539
2540 SKIP_WHITESPACES ();
2541
2542 name = input_line_pointer;
2543 name_end = get_symbol_end ();
2544
2545 if (coff_sym_name != (char *) NULL)
2546 as_warn (".def pseudo-op used inside of .def/.endef; ignored");
2547 else if (*name == '\0')
2548 as_warn ("Empty symbol name in .def; ignored");
2549 else
2550 {
2551 if (coff_sym_name != (char *) NULL)
2552 free (coff_sym_name);
2553 if (coff_tag != (char *) NULL)
2554 free (coff_tag);
2555 coff_sym_name = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2556 strcpy (coff_sym_name, name);
2557 coff_type = type_info_init;
2558 coff_storage_class = sc_Nil;
2559 coff_symbol_typ = st_Nil;
2560 coff_is_function = 0;
2561 coff_tag = (char *) NULL;
2562 coff_value = 0;
2563 coff_sym_value = (symbolS *) NULL;
2564 }
2565
2566 *input_line_pointer = name_end;
2567
2568 demand_empty_rest_of_line ();
2569 }
2570
2571 /* Handle a .dim directive, used to give dimensions for an array. The
2572 arguments are comma separated numbers. mips-tfile assumes that
2573 there will not be more than 6 dimensions, and gdb won't read any
2574 more than that anyhow, so I will also make that assumption. */
2575
2576 static void
2577 obj_ecoff_dim (ignore)
2578 int ignore;
2579 {
2580 int dimens[N_TQ];
2581 int i;
2582
2583 if (coff_sym_name == (char *) NULL)
2584 {
2585 as_warn (".dim pseudo-op used outside of .def/.endef; ignored");
2586 demand_empty_rest_of_line ();
2587 return;
2588 }
2589
2590 for (i = 0; i < N_TQ; i++)
2591 {
2592 SKIP_WHITESPACES ();
2593 dimens[i] = get_absolute_expression ();
2594 if (*input_line_pointer == ',')
2595 ++input_line_pointer;
2596 else
2597 {
2598 if (*input_line_pointer != '\n'
2599 && *input_line_pointer != ';')
2600 as_warn ("Badly formed .dim directive");
2601 break;
2602 }
2603 }
2604
2605 if (i == N_TQ)
2606 --i;
2607
2608 /* The dimensions are stored away in reverse order. */
2609 for (; i >= 0; i--)
2610 {
2611 if (coff_type.num_dims >= N_TQ)
2612 {
2613 as_warn ("Too many .dim entries");
2614 break;
2615 }
2616 coff_type.dimensions[coff_type.num_dims] = dimens[i];
2617 ++coff_type.num_dims;
2618 }
2619
2620 demand_empty_rest_of_line ();
2621 }
2622
2623 /* Handle a .scl directive, which sets the COFF storage class of the
2624 symbol. */
2625
2626 static void
2627 obj_ecoff_scl (ignore)
2628 int ignore;
2629 {
2630 long val;
2631
2632 if (coff_sym_name == (char *) NULL)
2633 {
2634 as_warn (".scl pseudo-op used outside of .def/.endef; ignored");
2635 demand_empty_rest_of_line ();
2636 return;
2637 }
2638
2639 val = get_absolute_expression ();
2640
2641 coff_symbol_typ = map_coff_sym_type[val];
2642 coff_storage_class = map_coff_storage[val];
2643
2644 demand_empty_rest_of_line ();
2645 }
2646
2647 /* Handle a .size directive. For some reason mips-tfile.c thinks that
2648 .size can have multiple arguments. We humor it, although gcc will
2649 never generate more than one argument. */
2650
2651 static void
2652 obj_ecoff_size (ignore)
2653 int ignore;
2654 {
2655 int sizes[N_TQ];
2656 int i;
2657
2658 if (coff_sym_name == (char *) NULL)
2659 {
2660 as_warn (".size pseudo-op used outside of .def/.endef; ignored");
2661 demand_empty_rest_of_line ();
2662 return;
2663 }
2664
2665 for (i = 0; i < N_TQ; i++)
2666 {
2667 SKIP_WHITESPACES ();
2668 sizes[i] = get_absolute_expression ();
2669 if (*input_line_pointer == ',')
2670 ++input_line_pointer;
2671 else
2672 {
2673 if (*input_line_pointer != '\n'
2674 && *input_line_pointer != ';')
2675 as_warn ("Badly formed .size directive");
2676 break;
2677 }
2678 }
2679
2680 if (i == N_TQ)
2681 --i;
2682
2683 /* The sizes are stored away in reverse order. */
2684 for (; i >= 0; i--)
2685 {
2686 if (coff_type.num_sizes >= N_TQ)
2687 {
2688 as_warn ("Too many .size entries");
2689 break;
2690 }
2691 coff_type.sizes[coff_type.num_sizes] = sizes[i];
2692 ++coff_type.num_sizes;
2693 }
2694
2695 demand_empty_rest_of_line ();
2696 }
2697
2698 /* Handle the .type directive, which gives the COFF type of the
2699 symbol. */
2700
2701 static void
2702 obj_ecoff_type (ignore)
2703 int ignore;
2704 {
2705 long val;
2706 tq_t *tq_ptr;
2707 tq_t *tq_shft;
2708
2709 if (coff_sym_name == (char *) NULL)
2710 {
2711 as_warn (".type pseudo-op used outside of .def/.endef; ignored");
2712 demand_empty_rest_of_line ();
2713 return;
2714 }
2715
2716 val = get_absolute_expression ();
2717
2718 coff_type.orig_type = BTYPE (val);
2719 coff_type.basic_type = map_coff_types[coff_type.orig_type];
2720
2721 tq_ptr = &coff_type.type_qualifiers[N_TQ];
2722 while (val &~ N_BTMASK)
2723 {
2724 if (tq_ptr == &coff_type.type_qualifiers[0])
2725 {
2726 as_warn ("Too derived values in .type argument");
2727 break;
2728 }
2729 if (ISPTR (val))
2730 *--tq_ptr = tq_Ptr;
2731 else if (ISFCN (val))
2732 *--tq_ptr = tq_Proc;
2733 else if (ISARY (val))
2734 *--tq_ptr = tq_Array;
2735 else
2736 as_fatal ("Unrecognized .type argument");
2737
2738 val = DECREF (val);
2739 }
2740
2741 tq_shft = &coff_type.type_qualifiers[0];
2742 while (tq_ptr != &coff_type.type_qualifiers[N_TQ])
2743 *tq_shft++ = *tq_ptr++;
2744
2745 if (tq_shft != &coff_type.type_qualifiers[0] && tq_shft[-1] == tq_Proc)
2746 {
2747 /* If this is a function, ignore it, so that we don't get two
2748 entries (one from the .ent, and one for the .def that
2749 precedes it). Save the type information so that the end
2750 block can properly add it after the begin block index. For
2751 MIPS knows what reason, we must strip off the function type
2752 at this point. */
2753 coff_is_function = 1;
2754 tq_shft[-1] = tq_Nil;
2755 }
2756
2757 while (tq_shft != &coff_type.type_qualifiers[N_TQ])
2758 *tq_shft++ = tq_Nil;
2759
2760 demand_empty_rest_of_line ();
2761 }
2762
2763 /* Handle the .tag directive, which gives the name of a structure,
2764 union or enum. */
2765
2766 static void
2767 obj_ecoff_tag (ignore)
2768 int ignore;
2769 {
2770 char *name;
2771 char name_end;
2772
2773 if (coff_sym_name == (char *) NULL)
2774 {
2775 as_warn (".tag pseudo-op used outside of .def/.endef; ignored");
2776 demand_empty_rest_of_line ();
2777 return;
2778 }
2779
2780 name = input_line_pointer;
2781 name_end = get_symbol_end ();
2782
2783 coff_tag = (char *) xmalloc ((unsigned long) (strlen (name) + 1));
2784 strcpy (coff_tag, name);
2785
2786 *input_line_pointer = name_end;
2787
2788 demand_empty_rest_of_line ();
2789 }
2790
2791 /* Handle the .val directive, which gives the value of the symbol. It
2792 may be the name of a static or global symbol. */
2793
2794 static void
2795 obj_ecoff_val (ignore)
2796 int ignore;
2797 {
2798 if (coff_sym_name == (char *) NULL)
2799 {
2800 as_warn (".val pseudo-op used outside of .def/.endef; ignored");
2801 demand_empty_rest_of_line ();
2802 return;
2803 }
2804
2805 if (! is_name_beginner ((unsigned char) *input_line_pointer))
2806 coff_value = get_absolute_expression ();
2807 else
2808 {
2809 char *name;
2810 char name_end;
2811
2812 name = input_line_pointer;
2813 name_end = get_symbol_end ();
2814
2815 if (strcmp (name, ".") == 0)
2816 as_warn ("`.val .' not supported");
2817 else
2818 coff_sym_value = symbol_find_or_make (name);
2819
2820 *input_line_pointer = name_end;
2821
2822 /* FIXME: gcc can generate address expressions here in unusual
2823 cases (search for "obscure" in sdbout.c), although this is
2824 very unlikely for a MIPS chip. */
2825 }
2826
2827 demand_empty_rest_of_line ();
2828 }
2829
2830 /* Handle the .endef directive, which terminates processing of COFF
2831 debugging information for a symbol. */
2832
2833 static void
2834 obj_ecoff_endef (ignore)
2835 int ignore;
2836 {
2837 char *name;
2838 symint_t indx;
2839 localsym_t *sym;
2840
2841 demand_empty_rest_of_line ();
2842
2843 if (coff_sym_name == (char *) NULL)
2844 {
2845 as_warn (".endef pseudo-op used before .def; ignored");
2846 return;
2847 }
2848
2849 name = coff_sym_name;
2850 coff_sym_name = (char *) NULL;
2851
2852 /* If the symbol is a static or external, we have already gotten the
2853 appropriate type and class, so make sure we don't override those
2854 values. This is needed because there are some type and classes
2855 that are not in COFF, such as short data, etc. */
2856 if (coff_sym_value != (symbolS *) NULL)
2857 {
2858 coff_symbol_typ = st_Nil;
2859 coff_storage_class = sc_Nil;
2860 }
2861
2862 coff_type.extra_sizes = coff_tag != (char *) NULL;
2863 if (coff_type.num_dims > 0)
2864 {
2865 int diff = coff_type.num_dims - coff_type.num_sizes;
2866 int i = coff_type.num_dims - 1;
2867 int j;
2868
2869 if (coff_type.num_sizes != 1 || diff < 0)
2870 {
2871 as_warn ("Bad COFF debugging info");
2872 return;
2873 }
2874
2875 /* If this is an array, make sure the same number of dimensions
2876 and sizes were passed, creating extra sizes for multiply
2877 dimensioned arrays if not passed. */
2878 coff_type.extra_sizes = 0;
2879 if (diff)
2880 {
2881 j = (sizeof (coff_type.sizes) / sizeof (coff_type.sizes[0])) - 1;
2882 while (j >= 0)
2883 {
2884 coff_type.sizes[j] = (((j - diff) >= 0)
2885 ? coff_type.sizes[j - diff]
2886 : 0);
2887 j--;
2888 }
2889
2890 coff_type.num_sizes = i + 1;
2891 for (i--; i >= 0; i--)
2892 coff_type.sizes[i] = (coff_type.sizes[i + 1]
2893 / coff_type.dimensions[i + 1]);
2894 }
2895 }
2896 else if (coff_symbol_typ == st_Member
2897 && coff_type.num_sizes - coff_type.extra_sizes == 1)
2898 {
2899 /* Is this a bitfield? This is indicated by a structure memeber
2900 having a size field that isn't an array. */
2901 coff_type.bitfield = 1;
2902 }
2903
2904 /* Except for enumeration members & begin/ending of scopes, put the
2905 type word in the aux. symbol table. */
2906 if (coff_symbol_typ == st_Block || coff_symbol_typ == st_End)
2907 indx = 0;
2908 else if (coff_inside_enumeration)
2909 indx = cur_file_ptr->void_type;
2910 else
2911 {
2912 if (coff_type.basic_type == bt_Struct
2913 || coff_type.basic_type == bt_Union
2914 || coff_type.basic_type == bt_Enum)
2915 {
2916 if (coff_tag == (char *) NULL)
2917 {
2918 as_warn ("No tag specified for %s", name);
2919 return;
2920 }
2921
2922 coff_type.tag_ptr = get_tag (coff_tag, (localsym_t *) NULL,
2923 coff_type.basic_type);
2924 }
2925
2926 if (coff_is_function)
2927 {
2928 last_func_type_info = coff_type;
2929 last_func_sym_value = coff_sym_value;
2930 return;
2931 }
2932
2933 indx = add_aux_sym_tir (&coff_type,
2934 hash_yes,
2935 &cur_file_ptr->thash_head[0]);
2936 }
2937
2938 /* Do any last minute adjustments that are necessary. */
2939 switch (coff_symbol_typ)
2940 {
2941 default:
2942 break;
2943
2944 /* For the beginning of structs, unions, and enumerations, the
2945 size info needs to be passed in the value field. */
2946 case st_Block:
2947 if (coff_type.num_sizes - coff_type.num_dims - coff_type.extra_sizes
2948 != 1)
2949 {
2950 as_warn ("Bad COFF debugging information");
2951 return;
2952 }
2953 else
2954 coff_value = coff_type.sizes[0];
2955
2956 coff_inside_enumeration = (coff_type.orig_type == T_ENUM);
2957 break;
2958
2959 /* For the end of structs, unions, and enumerations, omit the
2960 name which is always ".eos". This needs to be done last, so
2961 that any error reporting above gives the correct name. */
2962 case st_End:
2963 free (name);
2964 name = (char *) NULL;
2965 coff_value = 0;
2966 coff_inside_enumeration = 0;
2967 break;
2968
2969 /* Members of structures and unions that aren't bitfields, need
2970 to adjust the value from a byte offset to a bit offset.
2971 Members of enumerations do not have the value adjusted, and
2972 can be distinguished by indx == indexNil. For enumerations,
2973 update the maximum enumeration value. */
2974 case st_Member:
2975 if (! coff_type.bitfield && ! coff_inside_enumeration)
2976 coff_value *= 8;
2977
2978 break;
2979 }
2980
2981 /* Add the symbol. */
2982 sym = add_ecoff_symbol (name,
2983 coff_symbol_typ,
2984 coff_storage_class,
2985 coff_sym_value,
2986 (symint_t) coff_value,
2987 indx);
2988
2989 /* deal with struct, union, and enum tags. */
2990 if (coff_symbol_typ == st_Block)
2991 {
2992 /* Create or update the tag information. */
2993 tag_t *tag_ptr = get_tag (name,
2994 sym,
2995 coff_type.basic_type);
2996 forward_t **pf;
2997
2998 /* Remember any forward references. */
2999 for (pf = &sym->forward_ref;
3000 *pf != (forward_t *) NULL;
3001 pf = &(*pf)->next)
3002 ;
3003 *pf = tag_ptr->forward_ref;
3004 tag_ptr->forward_ref = (forward_t *) NULL;
3005 }
3006 }
3007 \f
3008 /* Parse .end directives. */
3009
3010 static void
3011 obj_ecoff_end (ignore)
3012 int ignore;
3013 {
3014 char *name;
3015 char name_end;
3016 register int ch;
3017 symbolS *ent;
3018
3019 if (cur_file_ptr == (efdr_t *) NULL)
3020 {
3021 as_warn (".end directive without a preceding .file directive");
3022 demand_empty_rest_of_line ();
3023 return;
3024 }
3025
3026 if (cur_proc_ptr == (proc_t *) NULL)
3027 {
3028 as_warn (".end directive without a preceding .ent directive");
3029 demand_empty_rest_of_line ();
3030 return;
3031 }
3032
3033 name = input_line_pointer;
3034 name_end = get_symbol_end ();
3035
3036 ch = *name;
3037 if (! is_name_beginner (ch))
3038 {
3039 as_warn (".end directive has no name");
3040 *input_line_pointer = name_end;
3041 demand_empty_rest_of_line ();
3042 return;
3043 }
3044
3045 /* The value is the distance between the .end directive and the
3046 corresponding symbol. We create a fake symbol to hold the
3047 current location, and put in the offset when we write out the
3048 symbol. */
3049 ent = symbol_find (name);
3050 if (ent == (symbolS *) NULL)
3051 as_warn (".end directive names unknown symbol");
3052 else
3053 (void) add_ecoff_symbol ((const char *) NULL, st_End, sc_Text,
3054 symbol_new ("L0\001", now_seg,
3055 (valueT) frag_now_fix (),
3056 frag_now),
3057 (symint_t) 0, (symint_t) 0);
3058
3059 cur_proc_ptr = (proc_t *) NULL;
3060
3061 *input_line_pointer = name_end;
3062 demand_empty_rest_of_line ();
3063 }
3064 \f
3065 /* Parse .ent directives. */
3066
3067 static void
3068 obj_ecoff_ent (ignore)
3069 int ignore;
3070 {
3071 char *name;
3072 char name_end;
3073 register int ch;
3074
3075 if (cur_file_ptr == (efdr_t *) NULL)
3076 add_file ((const char *) NULL, 0);
3077
3078 if (cur_proc_ptr != (proc_t *) NULL)
3079 {
3080 as_warn ("second .ent directive found before .end directive");
3081 demand_empty_rest_of_line ();
3082 return;
3083 }
3084
3085 name = input_line_pointer;
3086 name_end = get_symbol_end ();
3087
3088 ch = *name;
3089 if (! is_name_beginner (ch))
3090 {
3091 as_warn (".ent directive has no name");
3092 *input_line_pointer = name_end;
3093 demand_empty_rest_of_line ();
3094 return;
3095 }
3096
3097 add_procedure (name);
3098
3099 *input_line_pointer = name_end;
3100 demand_empty_rest_of_line ();
3101 }
3102 \f
3103 /* Parse .file directives. */
3104
3105 static void
3106 obj_ecoff_file (ignore)
3107 int ignore;
3108 {
3109 int indx;
3110 char *name;
3111 int len;
3112
3113 if (cur_proc_ptr != (proc_t *) NULL)
3114 {
3115 as_warn ("No way to handle .file within .ent/.end section");
3116 demand_empty_rest_of_line ();
3117 return;
3118 }
3119
3120 indx = (int) get_absolute_expression ();
3121
3122 /* FIXME: we don't have to save the name here. */
3123 name = demand_copy_C_string (&len);
3124
3125 add_file (name, indx - 1);
3126
3127 demand_empty_rest_of_line ();
3128 }
3129 \f
3130 /* Parse .fmask directives. */
3131
3132 static void
3133 obj_ecoff_fmask (ignore)
3134 int ignore;
3135 {
3136 long val;
3137
3138 if (cur_proc_ptr == (proc_t *) NULL)
3139 {
3140 as_warn (".fmask outside of .ent");
3141 demand_empty_rest_of_line ();
3142 return;
3143 }
3144
3145 if (get_absolute_expression_and_terminator (&val) != ',')
3146 {
3147 as_warn ("Bad .fmask directive");
3148 --input_line_pointer;
3149 demand_empty_rest_of_line ();
3150 return;
3151 }
3152
3153 cur_proc_ptr->pdr.fregmask = val;
3154 cur_proc_ptr->pdr.fregoffset = get_absolute_expression ();
3155
3156 demand_empty_rest_of_line ();
3157 }
3158 \f
3159 /* Parse .frame directives. */
3160
3161 static void
3162 obj_ecoff_frame (ignore)
3163 int ignore;
3164 {
3165 long val;
3166
3167 if (cur_proc_ptr == (proc_t *) NULL)
3168 {
3169 as_warn (".frame outside of .ent");
3170 demand_empty_rest_of_line ();
3171 return;
3172 }
3173
3174 cur_proc_ptr->pdr.framereg = tc_get_register ();
3175
3176 SKIP_WHITESPACE ();
3177 if (*input_line_pointer++ != ','
3178 || get_absolute_expression_and_terminator (&val) != ',')
3179 {
3180 as_warn ("Bad .frame directive");
3181 --input_line_pointer;
3182 demand_empty_rest_of_line ();
3183 return;
3184 }
3185
3186 cur_proc_ptr->pdr.frameoffset = val;
3187
3188 cur_proc_ptr->pdr.pcreg = tc_get_register ();
3189
3190 demand_empty_rest_of_line ();
3191 }
3192 \f
3193 /* Parse .mask directives. */
3194
3195 static void
3196 obj_ecoff_mask (ignore)
3197 int ignore;
3198 {
3199 long val;
3200
3201 if (cur_proc_ptr == (proc_t *) NULL)
3202 {
3203 as_warn (".mask outside of .ent");
3204 demand_empty_rest_of_line ();
3205 return;
3206 }
3207
3208 if (get_absolute_expression_and_terminator (&val) != ',')
3209 {
3210 as_warn ("Bad .mask directive");
3211 --input_line_pointer;
3212 demand_empty_rest_of_line ();
3213 return;
3214 }
3215
3216 cur_proc_ptr->pdr.regmask = val;
3217 cur_proc_ptr->pdr.regoffset = get_absolute_expression ();
3218
3219 demand_empty_rest_of_line ();
3220 }
3221 \f
3222 /* Parse .loc directives. */
3223
3224 static void
3225 obj_ecoff_loc (ignore)
3226 int ignore;
3227 {
3228 lineno_list_t *list;
3229 symint_t lineno;
3230
3231 if (cur_file_ptr == (efdr_t *) NULL)
3232 {
3233 as_warn (".loc before .file");
3234 demand_empty_rest_of_line ();
3235 return;
3236 }
3237
3238 if (now_seg != text_section)
3239 {
3240 as_warn (".loc outside of .text");
3241 demand_empty_rest_of_line ();
3242 return;
3243 }
3244
3245 /* Skip the file number. */
3246 SKIP_WHITESPACE ();
3247 get_absolute_expression ();
3248 SKIP_WHITESPACE ();
3249
3250 lineno = get_absolute_expression ();
3251
3252 #ifndef NO_LISTING
3253 if (listing)
3254 listing_source_line (lineno);
3255 #endif
3256
3257 /* If we're building stabs, then output a special label rather than
3258 ECOFF line number info. */
3259 if (stabs_seen)
3260 {
3261 (void) add_ecoff_symbol ((char *) NULL, st_Label, sc_Text,
3262 symbol_new ("L0\001", now_seg,
3263 (valueT) frag_now_fix (),
3264 frag_now),
3265 0, lineno);
3266 return;
3267 }
3268
3269 list = allocate_lineno_list ();
3270
3271 list->next = (lineno_list_t *) NULL;
3272 list->file = cur_file_ptr;
3273 list->proc = cur_proc_ptr;
3274 list->frag = frag_now;
3275 list->paddr = frag_now_fix ();
3276 list->lineno = lineno;
3277
3278 /* A .loc directive will sometimes appear before a .ent directive,
3279 which means that cur_proc_ptr will be NULL here. Arrange to
3280 patch this up. */
3281 if (cur_proc_ptr == (proc_t *) NULL)
3282 {
3283 lineno_list_t **pl;
3284
3285 pl = &noproc_lineno;
3286 while (*pl != (lineno_list_t *) NULL)
3287 pl = &(*pl)->next;
3288 *pl = list;
3289 }
3290 else
3291 {
3292 *last_lineno_ptr = list;
3293 last_lineno_ptr = &list->next;
3294 }
3295 }
3296 \f
3297 /* Make sure the @stabs symbol is emitted. */
3298
3299 static void
3300 mark_stabs (ignore)
3301 int ignore;
3302 {
3303 if (! stabs_seen)
3304 {
3305 /* Add a dummy @stabs dymbol. */
3306 stabs_seen = 1;
3307 (void) add_ecoff_symbol (stabs_symbol, stNil, scInfo,
3308 (symbolS *) NULL,
3309 (symint_t) -1, ECOFF_MARK_STAB (0));
3310 }
3311 }
3312 \f
3313 /* Handle .stabs directives. The actual parsing routine is done by a
3314 generic routine. This routine is called via OBJ_PROCESS_STAB.
3315 When this is called, input_line_pointer will be pointing at the
3316 value field of the stab.
3317
3318 .stabs directives have five fields:
3319 "string" a string, encoding the type information.
3320 code a numeric code, defined in <stab.h>
3321 0 a zero
3322 desc a zero or line number
3323 value a numeric value or an address.
3324
3325 If the value is relocatable, we transform this into:
3326 iss points as an index into string space
3327 value value from lookup of the name
3328 st st from lookup of the name
3329 sc sc from lookup of the name
3330 index code|CODE_MASK
3331
3332 If the value is not relocatable, we transform this into:
3333 iss points as an index into string space
3334 value value
3335 st st_Nil
3336 sc sc_Nil
3337 index code|CODE_MASK
3338
3339 .stabn directives have four fields (string is null):
3340 code a numeric code, defined in <stab.h>
3341 0 a zero
3342 desc a zero or a line number
3343 value a numeric value or an address. */
3344
3345 void
3346 ecoff_stab (what, string, type, other, desc)
3347 int what;
3348 const char *string;
3349 int type;
3350 int other;
3351 int desc;
3352 {
3353 efdr_t *save_file_ptr = cur_file_ptr;
3354 symbolS *sym;
3355 symint_t value;
3356 st_t st;
3357 sc_t sc;
3358 symint_t indx;
3359
3360 /* We don't handle .stabd. */
3361 if (what != 's' && what != 'n')
3362 {
3363 as_bad (".stab%c is not supported", what);
3364 return;
3365 }
3366
3367 /* A .stabn uses a null name, not an empty string. */
3368 if (what == 'n')
3369 string = NULL;
3370
3371 /* We ignore the other field. */
3372 if (other != 0)
3373 as_warn (".stab%c: ignoring non-zero other field", what);
3374
3375 /* Make sure we have a current file. */
3376 if (cur_file_ptr == (efdr_t *) NULL)
3377 {
3378 add_file ((const char *) NULL, 0);
3379 save_file_ptr = cur_file_ptr;
3380 }
3381
3382 /* For stabs in ECOFF, the first symbol must be @stabs. This is a
3383 signal to gdb. */
3384 if (stabs_seen == 0)
3385 mark_stabs (0);
3386
3387 /* Line number stabs are handled differently, since they have two
3388 values, the line number and the address of the label. We use the
3389 index field (aka desc) to hold the line number, and the value
3390 field to hold the address. The symbol type is st_Label, which
3391 should be different from the other stabs, so that gdb can
3392 recognize it. */
3393 if (type == N_SLINE)
3394 {
3395 SYMR dummy_symr;
3396 char *name;
3397 char name_end;
3398
3399 #ifndef NO_LISTING
3400 if (listing)
3401 listing_source_line ((unsigned int) desc);
3402 #endif
3403
3404 dummy_symr.index = desc;
3405 if (dummy_symr.index != desc)
3406 {
3407 as_warn ("Line number (%d) for .stab%c directive cannot fit in index field (20 bits)",
3408 desc, what);
3409 return;
3410 }
3411
3412 name = input_line_pointer;
3413 name_end = get_symbol_end ();
3414
3415 sym = symbol_find_or_make (name);
3416 *input_line_pointer = name_end;
3417
3418 value = 0;
3419 st = st_Label;
3420 sc = sc_Text;
3421 indx = desc;
3422 }
3423 else
3424 {
3425 #ifndef NO_LISTING
3426 if (listing && (type == N_SO || type == N_SOL))
3427 listing_source_file (string);
3428 #endif
3429
3430 if (isdigit (*input_line_pointer)
3431 || *input_line_pointer == '-'
3432 || *input_line_pointer == '+')
3433 {
3434 st = st_Nil;
3435 sc = sc_Nil;
3436 sym = (symbolS *) NULL;
3437 value = get_absolute_expression ();
3438 }
3439 else if (! is_name_beginner ((unsigned char) *input_line_pointer))
3440 {
3441 as_warn ("Illegal .stab%c directive, bad character", what);
3442 return;
3443 }
3444 else
3445 {
3446 char *name;
3447 char name_end;
3448
3449 name = input_line_pointer;
3450 name_end = get_symbol_end ();
3451
3452 sym = symbol_find_or_make (name);
3453
3454 sc = sc_Nil;
3455 st = st_Nil;
3456 value = 0;
3457
3458 *input_line_pointer = name_end;
3459 if (name_end == '+' || name_end == '-')
3460 {
3461 ++input_line_pointer;
3462 value = get_absolute_expression ();
3463 if (name_end == '-')
3464 value = - value;
3465 }
3466 }
3467
3468 indx = ECOFF_MARK_STAB (type);
3469 }
3470
3471 (void) add_ecoff_symbol (string, st, sc, sym, value, indx);
3472
3473 /* Restore normal file type. */
3474 cur_file_ptr = save_file_ptr;
3475 }
3476 \f
3477 /* Add bytes to the symbolic information buffer. */
3478
3479 static char *
3480 ecoff_add_bytes (buf, bufend, bufptr, need)
3481 char **buf;
3482 char **bufend;
3483 char *bufptr;
3484 unsigned long need;
3485 {
3486 unsigned long at;
3487 unsigned long want;
3488
3489 at = bufptr - *buf;
3490 need -= *bufend - bufptr;
3491 if (need < PAGE_SIZE)
3492 need = PAGE_SIZE;
3493 want = (*bufend - *buf) + need;
3494 *buf = xrealloc (*buf, want);
3495 *bufend = *buf + want;
3496 return *buf + at;
3497 }
3498
3499 /* Adjust the symbolic information buffer to the alignment required
3500 for the ECOFF target debugging information. */
3501
3502 static unsigned long
3503 ecoff_padding_adjust (buf, bufend, offset, bufptrptr)
3504 char **buf;
3505 char **bufend;
3506 unsigned long offset;
3507 char **bufptrptr;
3508 {
3509 bfd_size_type align;
3510
3511 align = ecoff_backend (stdoutput)->debug_align;
3512 if ((offset & (align - 1)) != 0)
3513 {
3514 unsigned long add;
3515
3516 add = align - (offset & (align - 1));
3517 if (*bufend - (*buf + offset) < add)
3518 (void) ecoff_add_bytes (buf, bufend, *buf + offset, add);
3519 memset (*buf + offset, 0, add);
3520 offset += add;
3521 if (bufptrptr != (char **) NULL)
3522 *bufptrptr = *buf + offset;
3523 }
3524
3525 return offset;
3526 }
3527
3528 /* Build the line number information. */
3529
3530 static unsigned long
3531 ecoff_build_lineno (buf, bufend, offset, linecntptr)
3532 char **buf;
3533 char **bufend;
3534 unsigned long offset;
3535 long *linecntptr;
3536 {
3537 char *bufptr;
3538 register lineno_list_t *l;
3539 lineno_list_t *last;
3540 efdr_t *file;
3541 proc_t *proc;
3542 unsigned long c;
3543 long iline;
3544 long totcount;
3545
3546 if (linecntptr != (long *) NULL)
3547 *linecntptr = 0;
3548
3549 bufptr = *buf + offset;
3550
3551 file = (efdr_t *) NULL;
3552 proc = (proc_t *) NULL;
3553 last = (lineno_list_t *) NULL;
3554 c = offset;
3555 iline = 0;
3556 totcount = 0;
3557 for (l = first_lineno; l != (lineno_list_t *) NULL; l = l->next)
3558 {
3559 long count;
3560 long delta;
3561
3562 /* Get the offset to the memory address of the next line number
3563 (in words). Do this first, so that we can skip ahead to the
3564 next useful line number entry. */
3565 if (l->next == (lineno_list_t *) NULL)
3566 count = 0;
3567 else
3568 {
3569 count = ((l->next->frag->fr_address + l->next->paddr
3570 - (l->frag->fr_address + l->paddr))
3571 >> 2);
3572 if (count <= 0)
3573 {
3574 /* Don't change last, so we still get the right delta. */
3575 continue;
3576 }
3577 }
3578
3579 if (l->file != file || l->proc != proc)
3580 {
3581 if (l->proc != proc && proc != (proc_t *) NULL)
3582 proc->pdr.lnHigh = last->lineno;
3583 if (l->file != file && file != (efdr_t *) NULL)
3584 {
3585 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3586 /* The cline field is ill-documented. This is a guess
3587 at the right value. */
3588 file->fdr.cline = totcount + count;
3589 if (linecntptr != (long *) NULL)
3590 *linecntptr += totcount + count;
3591 totcount = 0;
3592 }
3593
3594 if (l->file != file)
3595 {
3596 file = l->file;
3597 file->fdr.ilineBase = iline;
3598 file->fdr.cbLineOffset = c;
3599 }
3600 if (l->proc != proc)
3601 {
3602 proc = l->proc;
3603 if (proc != (proc_t *) NULL)
3604 {
3605 proc->pdr.lnLow = l->lineno;
3606 proc->pdr.cbLineOffset = c - file->fdr.cbLineOffset;
3607 /* The iline field is ill-documented. This is a
3608 guess at the right value. */
3609 proc->pdr.iline = totcount;
3610 }
3611 }
3612
3613 last = (lineno_list_t *) NULL;
3614 }
3615
3616 totcount += count;
3617
3618 /* Get the offset to this line number. */
3619 if (last == (lineno_list_t *) NULL)
3620 delta = 0;
3621 else
3622 delta = l->lineno - last->lineno;
3623
3624 /* Put in the offset to this line number. */
3625 while (delta != 0)
3626 {
3627 int setcount;
3628
3629 /* 1 is added to each count read. */
3630 --count;
3631 /* We can only adjust the word count by up to 15 words at a
3632 time. */
3633 if (count <= 0x0f)
3634 {
3635 setcount = count;
3636 count = 0;
3637 }
3638 else
3639 {
3640 setcount = 0x0f;
3641 count -= 0x0f;
3642 }
3643 if (delta >= -7 && delta <= 7)
3644 {
3645 if (bufptr >= *bufend)
3646 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3647 *bufptr++ = setcount + (delta << 4);
3648 delta = 0;
3649 ++c;
3650 }
3651 else
3652 {
3653 int set;
3654
3655 if (*bufend - bufptr < 3)
3656 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 3);
3657 *bufptr++ = setcount + (8 << 4);
3658 if (delta < -0x8000)
3659 {
3660 set = -0x8000;
3661 delta += 0x8000;
3662 }
3663 else if (delta > 0x7fff)
3664 {
3665 set = 0x7fff;
3666 delta -= 0x7fff;
3667 }
3668 else
3669 {
3670 set = delta;
3671 delta = 0;
3672 }
3673 *bufptr++ = set >> 8;
3674 *bufptr++ = set & 0xffff;
3675 c += 3;
3676 }
3677 }
3678
3679 /* Finish adjusting the count. */
3680 while (count > 0)
3681 {
3682 if (bufptr >= *bufend)
3683 bufptr = ecoff_add_bytes (buf, bufend, bufptr, (long) 1);
3684 /* 1 is added to each count read. */
3685 --count;
3686 if (count > 0x0f)
3687 {
3688 *bufptr++ = 0x0f;
3689 count -= 0x0f;
3690 }
3691 else
3692 {
3693 *bufptr++ = count;
3694 count = 0;
3695 }
3696 ++c;
3697 }
3698
3699 ++iline;
3700 last = l;
3701 }
3702
3703 if (proc != (proc_t *) NULL)
3704 proc->pdr.lnHigh = last->lineno;
3705 if (file != (efdr_t *) NULL)
3706 {
3707 file->fdr.cbLine = c - file->fdr.cbLineOffset;
3708 file->fdr.cline = totcount;
3709 }
3710
3711 if (linecntptr != (long *) NULL)
3712 *linecntptr += totcount;
3713
3714 c = ecoff_padding_adjust (buf, bufend, c, &bufptr);
3715
3716 return c;
3717 }
3718
3719 /* Build and swap out the symbols. */
3720
3721 static unsigned long
3722 ecoff_build_symbols (buf,
3723 bufend,
3724 offset,
3725 extbuf,
3726 extbufend,
3727 extoffset,
3728 ext_strings,
3729 ext_str_hash)
3730 char **buf;
3731 char **bufend;
3732 unsigned long offset;
3733 char **extbuf;
3734 char **extbufend;
3735 unsigned long *extoffset;
3736 varray_t *ext_strings;
3737 struct hash_control *ext_str_hash;
3738 {
3739 const bfd_size_type external_sym_size =
3740 ecoff_backend (stdoutput)->external_sym_size;
3741 const bfd_size_type external_ext_size =
3742 ecoff_backend (stdoutput)->external_ext_size;
3743 void (* const swap_sym_out) PARAMS ((bfd *, const SYMR *, PTR))
3744 = ecoff_backend (stdoutput)->swap_sym_out;
3745 void (* const swap_ext_out) PARAMS ((bfd *, const EXTR *, PTR))
3746 = ecoff_backend (stdoutput)->swap_ext_out;
3747 char *sym_out;
3748 char *ext_out;
3749 long isym;
3750 long iext;
3751 vlinks_t *file_link;
3752
3753 sym_out = *buf + offset;
3754 ext_out = *extbuf + *extoffset;
3755
3756 isym = 0;
3757 iext = 0;
3758
3759 /* The symbols are stored by file. */
3760 for (file_link = file_desc.first;
3761 file_link != (vlinks_t *) NULL;
3762 file_link = file_link->next)
3763 {
3764 int ifilesym;
3765 int fil_cnt;
3766 efdr_t *fil_ptr;
3767 efdr_t *fil_end;
3768
3769 if (file_link->next == (vlinks_t *) NULL)
3770 fil_cnt = file_desc.objects_last_page;
3771 else
3772 fil_cnt = file_desc.objects_per_page;
3773 fil_ptr = file_link->datum->file;
3774 fil_end = fil_ptr + fil_cnt;
3775 for (; fil_ptr < fil_end; fil_ptr++)
3776 {
3777 vlinks_t *sym_link;
3778
3779 fil_ptr->fdr.isymBase = isym;
3780 ifilesym = isym;
3781 for (sym_link = fil_ptr->symbols.first;
3782 sym_link != (vlinks_t *) NULL;
3783 sym_link = sym_link->next)
3784 {
3785 int sym_cnt;
3786 localsym_t *sym_ptr;
3787 localsym_t *sym_end;
3788
3789 if (sym_link->next == (vlinks_t *) NULL)
3790 sym_cnt = fil_ptr->symbols.objects_last_page;
3791 else
3792 sym_cnt = fil_ptr->symbols.objects_per_page;
3793 sym_ptr = sym_link->datum->sym;
3794 sym_end = sym_ptr + sym_cnt;
3795 for (; sym_ptr < sym_end; sym_ptr++)
3796 {
3797 int local;
3798 symbolS *as_sym;
3799 forward_t *f;
3800
3801 know (sym_ptr->file_ptr == fil_ptr);
3802
3803 /* If there is no associated gas symbol, then this
3804 is a pure debugging symbol. We have already
3805 added the name (if any) to fil_ptr->strings.
3806 Otherwise we must decide whether this is an
3807 external or a local symbol (actually, it may be
3808 both if the local provides additional debugging
3809 information for the external). */
3810 local = 1;
3811 as_sym = sym_ptr->as_sym;
3812 if (as_sym != (symbolS *) NULL)
3813 {
3814 symint_t indx;
3815
3816 /* The value of a block start symbol is the
3817 offset from the start of the procedure. For
3818 other symbols we just use the gas value (but
3819 we must offset it by the vma of the section,
3820 just as BFD does, because BFD will not see
3821 this value). */
3822 if (sym_ptr->ecoff_sym.st == (int) st_Block
3823 && sym_ptr->ecoff_sym.sc == (int) sc_Text)
3824 {
3825 symbolS *begin_sym;
3826
3827 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3828 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3829 if (S_GET_SEGMENT (as_sym)
3830 != S_GET_SEGMENT (begin_sym))
3831 as_warn (".begin/.bend in different segments");
3832 sym_ptr->ecoff_sym.value =
3833 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
3834 }
3835 else
3836 sym_ptr->ecoff_sym.value =
3837 (S_GET_VALUE (as_sym)
3838 + bfd_get_section_vma (stdoutput,
3839 S_GET_SEGMENT (as_sym)));
3840
3841 /* Set st_Proc to st_StaticProc for local
3842 functions. */
3843 if (sym_ptr->ecoff_sym.st == st_Proc
3844 && S_IS_DEFINED (as_sym)
3845 && ! S_IS_EXTERNAL (as_sym))
3846 sym_ptr->ecoff_sym.st = st_StaticProc;
3847
3848 /* Get the type and storage class based on where
3849 the symbol actually wound up. Traditionally,
3850 N_LBRAC and N_RBRAC are *not* relocated. */
3851 indx = sym_ptr->ecoff_sym.index;
3852 if (sym_ptr->ecoff_sym.st == st_Nil
3853 && sym_ptr->ecoff_sym.sc == sc_Nil
3854 && (! ECOFF_IS_STAB (&sym_ptr->ecoff_sym)
3855 || ((ECOFF_UNMARK_STAB (indx) != N_LBRAC)
3856 && (ECOFF_UNMARK_STAB (indx) != N_RBRAC))))
3857 {
3858 segT seg;
3859 const char *segname;
3860 st_t st;
3861 sc_t sc;
3862
3863 seg = S_GET_SEGMENT (as_sym);
3864 segname = segment_name (seg);
3865
3866 if (S_IS_EXTERNAL (as_sym)
3867 || ! S_IS_DEFINED (as_sym))
3868 st = st_Global;
3869 else if (seg == text_section)
3870 st = st_Label;
3871 else
3872 st = st_Static;
3873
3874 if (! S_IS_DEFINED (as_sym)
3875 || as_sym->ecoff_undefined)
3876 {
3877 if (S_GET_VALUE (as_sym) > 0
3878 && (S_GET_VALUE (as_sym)
3879 <= bfd_get_gp_size (stdoutput)))
3880 sc = sc_SUndefined;
3881 else
3882 sc = sc_Undefined;
3883 }
3884 else if (S_IS_COMMON (as_sym))
3885 {
3886 if (S_GET_VALUE (as_sym) > 0
3887 && (S_GET_VALUE (as_sym)
3888 <= bfd_get_gp_size (stdoutput)))
3889 sc = sc_SCommon;
3890 else
3891 sc = sc_Common;
3892 }
3893 else if (seg == text_section)
3894 sc = sc_Text;
3895 else if (seg == data_section)
3896 sc = sc_Data;
3897 else if (strcmp (segname, ".rdata") == 0)
3898 sc = sc_RData;
3899 else if (strcmp (segname, ".sdata") == 0)
3900 sc = sc_SData;
3901 else if (seg == bss_section)
3902 sc = sc_Bss;
3903 else if (strcmp (segname, ".sbss") == 0)
3904 sc = sc_SBss;
3905 else if (seg == &bfd_abs_section)
3906 sc = sc_Abs;
3907 else
3908 abort ();
3909
3910 sym_ptr->ecoff_sym.st = (int) st;
3911 sym_ptr->ecoff_sym.sc = (int) sc;
3912 }
3913
3914 /* This is just an external symbol if it is
3915 outside a procedure and it has a type.
3916 FIXME: g++ will generate symbols which have
3917 different names in the debugging information
3918 than the actual symbol. Should we handle
3919 them here? */
3920 if ((S_IS_EXTERNAL (as_sym)
3921 || ! S_IS_DEFINED (as_sym))
3922 && sym_ptr->proc_ptr == (proc_t *) NULL
3923 && sym_ptr->ecoff_sym.st != (int) st_Nil
3924 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym))
3925 local = 0;
3926
3927 /* If an st_end symbol has an associated gas
3928 symbol, then it is a local label created for
3929 a .bend or .end directive. Stabs line
3930 numbers will have \001 in the names. */
3931 if (local
3932 && sym_ptr->ecoff_sym.st != st_End
3933 && strchr (sym_ptr->name, '\001') == 0)
3934 sym_ptr->ecoff_sym.iss =
3935 add_string (&fil_ptr->strings,
3936 fil_ptr->str_hash,
3937 sym_ptr->name,
3938 (shash_t **) NULL);
3939 }
3940
3941 /* We now know the index of this symbol; fill in
3942 locations that have been waiting for that
3943 information. */
3944 if (sym_ptr->begin_ptr != (localsym_t *) NULL)
3945 {
3946 localsym_t *begin_ptr;
3947 st_t begin_type;
3948
3949 know (local);
3950 begin_ptr = sym_ptr->begin_ptr;
3951 know (begin_ptr->sym_index != -1);
3952 sym_ptr->ecoff_sym.index = begin_ptr->sym_index;
3953 if (sym_ptr->ecoff_sym.sc != (int) sc_Info)
3954 sym_ptr->ecoff_sym.iss = begin_ptr->ecoff_sym.iss;
3955
3956 begin_type = begin_ptr->ecoff_sym.st;
3957 if (begin_type == st_File
3958 || begin_type == st_Block)
3959 {
3960 begin_ptr->ecoff_sym.index = isym - ifilesym + 1;
3961 (*swap_sym_out) (stdoutput,
3962 &begin_ptr->ecoff_sym,
3963 (*buf
3964 + offset
3965 + (begin_ptr->sym_index
3966 * external_sym_size)));
3967 }
3968 else
3969 {
3970 know (begin_ptr->index_ptr != (aux_t *) NULL);
3971 begin_ptr->index_ptr->data.isym =
3972 isym - ifilesym + 1;
3973 }
3974
3975 /* The value of the symbol marking the end of a
3976 procedure is the size of the procedure. The
3977 value of the symbol marking the end of a
3978 block is the offset from the start of the
3979 procedure to the block. */
3980 if (begin_type == st_Proc)
3981 {
3982 know (as_sym != (symbolS *) NULL);
3983 know (begin_ptr->as_sym != (symbolS *) NULL);
3984 if (S_GET_SEGMENT (as_sym)
3985 != S_GET_SEGMENT (begin_ptr->as_sym))
3986 as_warn (".begin/.bend in different segments");
3987 sym_ptr->ecoff_sym.value =
3988 (S_GET_VALUE (as_sym)
3989 - S_GET_VALUE (begin_ptr->as_sym));
3990 }
3991 else if (begin_type == st_Block
3992 && sym_ptr->ecoff_sym.sc != (int) sc_Info)
3993 {
3994 symbolS *begin_sym;
3995
3996 know (as_sym != (symbolS *) NULL);
3997 know (sym_ptr->proc_ptr != (proc_t *) NULL);
3998 begin_sym = sym_ptr->proc_ptr->sym->as_sym;
3999 if (S_GET_SEGMENT (as_sym)
4000 != S_GET_SEGMENT (begin_sym))
4001 as_warn (".begin/.bend in different segments");
4002 sym_ptr->ecoff_sym.value =
4003 S_GET_VALUE (as_sym) - S_GET_VALUE (begin_sym);
4004 }
4005 }
4006
4007 for (f = sym_ptr->forward_ref;
4008 f != (forward_t *) NULL;
4009 f = f->next)
4010 {
4011 know (local);
4012 f->ifd_ptr->data.isym = fil_ptr->file_index;
4013 f->index_ptr->data.rndx.index = isym - ifilesym;
4014 }
4015
4016 if (local)
4017 {
4018 if (*bufend - sym_out < external_sym_size)
4019 sym_out = ecoff_add_bytes (buf, bufend,
4020 sym_out,
4021 external_sym_size);
4022 (*swap_sym_out) (stdoutput, &sym_ptr->ecoff_sym,
4023 sym_out);
4024 sym_out += external_sym_size;
4025
4026 sym_ptr->sym_index = isym;
4027
4028 if (sym_ptr->proc_ptr != (proc_t *) NULL
4029 && sym_ptr->proc_ptr->sym == sym_ptr)
4030 sym_ptr->proc_ptr->pdr.isym = isym - ifilesym;
4031
4032 ++isym;
4033 }
4034
4035 /* If this is an external symbol, swap it out. */
4036 if (as_sym != (symbolS *) NULL
4037 && (S_IS_EXTERNAL (as_sym)
4038 || ! S_IS_DEFINED (as_sym))
4039 && ! ECOFF_IS_STAB (&sym_ptr->ecoff_sym))
4040 {
4041 EXTR ext;
4042
4043 memset (&ext, 0, sizeof ext);
4044 ext.asym = sym_ptr->ecoff_sym;
4045 if (sym_ptr->ecoff_sym.st == st_Proc
4046 || sym_ptr->ecoff_sym.st == st_StaticProc)
4047 {
4048 know (local);
4049 ext.asym.index = isym - ifilesym - 1;
4050 }
4051 ext.ifd = fil_ptr->file_index;
4052 ext.asym.iss = add_string (ext_strings,
4053 ext_str_hash,
4054 S_GET_NAME (as_sym),
4055 (shash_t **) NULL);
4056 if (*extbufend - ext_out < external_ext_size)
4057 ext_out = ecoff_add_bytes (extbuf, extbufend,
4058 ext_out,
4059 external_ext_size);
4060 (*swap_ext_out) (stdoutput, &ext, ext_out);
4061 ecoff_set_sym_index (as_sym->bsym, iext);
4062 ext_out += external_ext_size;
4063 ++iext;
4064 }
4065 }
4066 }
4067 fil_ptr->fdr.csym = isym - fil_ptr->fdr.isymBase;
4068 }
4069 }
4070
4071 *extoffset += iext * external_ext_size;
4072 return offset + isym * external_sym_size;
4073 }
4074
4075 /* Swap out the procedure information. */
4076
4077 static unsigned long
4078 ecoff_build_procs (buf, bufend, offset)
4079 char **buf;
4080 char **bufend;
4081 unsigned long offset;
4082 {
4083 const bfd_size_type external_pdr_size
4084 = ecoff_backend (stdoutput)->external_pdr_size;
4085 void (* const swap_pdr_out) PARAMS ((bfd *, const PDR *, PTR))
4086 = ecoff_backend (stdoutput)->swap_pdr_out;
4087 char *pdr_out;
4088 int first_fil;
4089 long iproc;
4090 vlinks_t *file_link;
4091
4092 pdr_out = *buf + offset;
4093
4094 first_fil = 1;
4095 iproc = 0;
4096
4097 /* The procedures are stored by file. */
4098 for (file_link = file_desc.first;
4099 file_link != (vlinks_t *) NULL;
4100 file_link = file_link->next)
4101 {
4102 int fil_cnt;
4103 efdr_t *fil_ptr;
4104 efdr_t *fil_end;
4105
4106 if (file_link->next == (vlinks_t *) NULL)
4107 fil_cnt = file_desc.objects_last_page;
4108 else
4109 fil_cnt = file_desc.objects_per_page;
4110 fil_ptr = file_link->datum->file;
4111 fil_end = fil_ptr + fil_cnt;
4112 for (; fil_ptr < fil_end; fil_ptr++)
4113 {
4114 vlinks_t *proc_link;
4115 int first;
4116
4117 fil_ptr->fdr.ipdFirst = iproc;
4118 first = 1;
4119 for (proc_link = fil_ptr->procs.first;
4120 proc_link != (vlinks_t *) NULL;
4121 proc_link = proc_link->next)
4122 {
4123 int prc_cnt;
4124 proc_t *proc_ptr;
4125 proc_t *proc_end;
4126
4127 if (proc_link->next == (vlinks_t *) NULL)
4128 prc_cnt = fil_ptr->procs.objects_last_page;
4129 else
4130 prc_cnt = fil_ptr->procs.objects_per_page;
4131 proc_ptr = proc_link->datum->proc;
4132 proc_end = proc_ptr + prc_cnt;
4133 for (; proc_ptr < proc_end; proc_ptr++)
4134 {
4135 symbolS *adr_sym;
4136 unsigned long adr;
4137
4138 adr_sym = proc_ptr->sym->as_sym;
4139 adr = (S_GET_VALUE (adr_sym)
4140 + bfd_get_section_vma (stdoutput,
4141 S_GET_SEGMENT (adr_sym)));
4142 if (first)
4143 {
4144 if (first_fil)
4145 first_fil = 0;
4146 else
4147 fil_ptr->fdr.adr = adr;
4148 first = 0;
4149 }
4150 proc_ptr->pdr.adr = adr - fil_ptr->fdr.adr;
4151 if (*bufend - pdr_out < external_pdr_size)
4152 pdr_out = ecoff_add_bytes (buf, bufend,
4153 pdr_out,
4154 external_pdr_size);
4155 (*swap_pdr_out) (stdoutput, &proc_ptr->pdr, pdr_out);
4156 pdr_out += external_pdr_size;
4157 ++iproc;
4158 }
4159 }
4160 fil_ptr->fdr.cpd = iproc - fil_ptr->fdr.ipdFirst;
4161 }
4162 }
4163
4164 return offset + iproc * external_pdr_size;
4165 }
4166
4167 /* Swap out the aux information. */
4168
4169 static unsigned long
4170 ecoff_build_aux (buf, bufend, offset)
4171 char **buf;
4172 char **bufend;
4173 unsigned long offset;
4174 {
4175 int bigendian;
4176 union aux_ext *aux_out;
4177 long iaux;
4178 vlinks_t *file_link;
4179
4180 bigendian = stdoutput->xvec->header_byteorder_big_p;
4181
4182 aux_out = (union aux_ext *) (*buf + offset);
4183
4184 iaux = 0;
4185
4186 /* The aux entries are stored by file. */
4187 for (file_link = file_desc.first;
4188 file_link != (vlinks_t *) NULL;
4189 file_link = file_link->next)
4190 {
4191 int fil_cnt;
4192 efdr_t *fil_ptr;
4193 efdr_t *fil_end;
4194
4195 if (file_link->next == (vlinks_t *) NULL)
4196 fil_cnt = file_desc.objects_last_page;
4197 else
4198 fil_cnt = file_desc.objects_per_page;
4199 fil_ptr = file_link->datum->file;
4200 fil_end = fil_ptr + fil_cnt;
4201 for (; fil_ptr < fil_end; fil_ptr++)
4202 {
4203 vlinks_t *aux_link;
4204
4205 fil_ptr->fdr.fBigendian = bigendian;
4206 fil_ptr->fdr.iauxBase = iaux;
4207 for (aux_link = fil_ptr->aux_syms.first;
4208 aux_link != (vlinks_t *) NULL;
4209 aux_link = aux_link->next)
4210 {
4211 int aux_cnt;
4212 aux_t *aux_ptr;
4213 aux_t *aux_end;
4214
4215 if (aux_link->next == (vlinks_t *) NULL)
4216 aux_cnt = fil_ptr->aux_syms.objects_last_page;
4217 else
4218 aux_cnt = fil_ptr->aux_syms.objects_per_page;
4219 aux_ptr = aux_link->datum->aux;
4220 aux_end = aux_ptr + aux_cnt;
4221 for (; aux_ptr < aux_end; aux_ptr++)
4222 {
4223 if (*bufend - (char *) aux_out < sizeof (union aux_ext))
4224 aux_out = ((union aux_ext *)
4225 ecoff_add_bytes (buf, bufend,
4226 (char *) aux_out,
4227 sizeof (union aux_ext)));
4228 switch (aux_ptr->type)
4229 {
4230 case aux_tir:
4231 ecoff_swap_tir_out (bigendian, &aux_ptr->data.ti,
4232 &aux_out->a_ti);
4233 break;
4234 case aux_rndx:
4235 ecoff_swap_rndx_out (bigendian, &aux_ptr->data.rndx,
4236 &aux_out->a_rndx);
4237 break;
4238 case aux_dnLow:
4239 AUX_PUT_DNLOW (bigendian, aux_ptr->data.dnLow,
4240 aux_out);
4241 break;
4242 case aux_dnHigh:
4243 AUX_PUT_DNHIGH (bigendian, aux_ptr->data.dnHigh,
4244 aux_out);
4245 break;
4246 case aux_isym:
4247 AUX_PUT_ISYM (bigendian, aux_ptr->data.isym,
4248 aux_out);
4249 break;
4250 case aux_iss:
4251 AUX_PUT_ISS (bigendian, aux_ptr->data.iss,
4252 aux_out);
4253 break;
4254 case aux_width:
4255 AUX_PUT_WIDTH (bigendian, aux_ptr->data.width,
4256 aux_out);
4257 break;
4258 case aux_count:
4259 AUX_PUT_COUNT (bigendian, aux_ptr->data.count,
4260 aux_out);
4261 break;
4262 }
4263
4264 ++aux_out;
4265 ++iaux;
4266 }
4267 }
4268 fil_ptr->fdr.caux = iaux - fil_ptr->fdr.iauxBase;
4269 }
4270 }
4271
4272 return offset + iaux * sizeof (union aux_ext);
4273 }
4274
4275 /* Copy out the strings from a varray_t. This returns the number of
4276 bytes copied, rather than the new offset. */
4277
4278 static unsigned long
4279 ecoff_build_strings (buf, bufend, offset, vp)
4280 char **buf;
4281 char **bufend;
4282 unsigned long offset;
4283 varray_t *vp;
4284 {
4285 unsigned long istr;
4286 char *str_out;
4287 vlinks_t *str_link;
4288
4289 str_out = *buf + offset;
4290
4291 istr = 0;
4292
4293 for (str_link = vp->first;
4294 str_link != (vlinks_t *) NULL;
4295 str_link = str_link->next)
4296 {
4297 unsigned long str_cnt;
4298
4299 if (str_link->next == (vlinks_t *) NULL)
4300 str_cnt = vp->objects_last_page;
4301 else
4302 str_cnt = vp->objects_per_page;
4303
4304 if (*bufend - str_out < str_cnt)
4305 str_out = ecoff_add_bytes (buf, bufend, str_out, str_cnt);
4306
4307 memcpy (str_out, str_link->datum->byte, str_cnt);
4308 str_out += str_cnt;
4309 istr += str_cnt;
4310 }
4311
4312 return istr;
4313 }
4314
4315 /* Dump out the local strings. */
4316
4317 static unsigned long
4318 ecoff_build_ss (buf, bufend, offset)
4319 char **buf;
4320 char **bufend;
4321 unsigned long offset;
4322 {
4323 long iss;
4324 vlinks_t *file_link;
4325
4326 iss = 0;
4327
4328 for (file_link = file_desc.first;
4329 file_link != (vlinks_t *) NULL;
4330 file_link = file_link->next)
4331 {
4332 int fil_cnt;
4333 efdr_t *fil_ptr;
4334 efdr_t *fil_end;
4335
4336 if (file_link->next == (vlinks_t *) NULL)
4337 fil_cnt = file_desc.objects_last_page;
4338 else
4339 fil_cnt = file_desc.objects_per_page;
4340 fil_ptr = file_link->datum->file;
4341 fil_end = fil_ptr + fil_cnt;
4342 for (; fil_ptr < fil_end; fil_ptr++)
4343 {
4344 long ss_cnt;
4345
4346 fil_ptr->fdr.issBase = iss;
4347 ss_cnt = ecoff_build_strings (buf, bufend, offset + iss,
4348 &fil_ptr->strings);
4349 fil_ptr->fdr.cbSs = ss_cnt;
4350 iss += ss_cnt;
4351 }
4352 }
4353
4354 return ecoff_padding_adjust (buf, bufend, offset + iss, (char **) NULL);
4355 }
4356
4357 /* Swap out the file descriptors. */
4358
4359 static unsigned long
4360 ecoff_build_fdr (buf, bufend, offset)
4361 char **buf;
4362 char **bufend;
4363 unsigned long offset;
4364 {
4365 const bfd_size_type external_fdr_size
4366 = ecoff_backend (stdoutput)->external_fdr_size;
4367 void (* const swap_fdr_out) PARAMS ((bfd *, const FDR *, PTR))
4368 = ecoff_backend (stdoutput)->swap_fdr_out;
4369 long ifile;
4370 char *fdr_out;
4371 vlinks_t *file_link;
4372
4373 ifile = 0;
4374
4375 fdr_out = *buf + offset;
4376
4377 for (file_link = file_desc.first;
4378 file_link != (vlinks_t *) NULL;
4379 file_link = file_link->next)
4380 {
4381 int fil_cnt;
4382 efdr_t *fil_ptr;
4383 efdr_t *fil_end;
4384
4385 if (file_link->next == (vlinks_t *) NULL)
4386 fil_cnt = file_desc.objects_last_page;
4387 else
4388 fil_cnt = file_desc.objects_per_page;
4389 fil_ptr = file_link->datum->file;
4390 fil_end = fil_ptr + fil_cnt;
4391 for (; fil_ptr < fil_end; fil_ptr++)
4392 {
4393 if (*bufend - fdr_out < external_fdr_size)
4394 fdr_out = ecoff_add_bytes (buf, bufend, fdr_out,
4395 external_fdr_size);
4396 (*swap_fdr_out) (stdoutput, &fil_ptr->fdr, fdr_out);
4397 fdr_out += external_fdr_size;
4398 ++ifile;
4399 }
4400 }
4401
4402 return offset + ifile * external_fdr_size;
4403 }
4404
4405 /* Swap out the symbols and debugging information for BFD. */
4406
4407 void
4408 ecoff_frob_file ()
4409 {
4410 const struct ecoff_backend_data * const backend = ecoff_backend (stdoutput);
4411 const bfd_size_type external_pdr_size = backend->external_pdr_size;
4412 tag_t *ptag;
4413 tag_t *ptag_next;
4414 efdr_t *fil_ptr;
4415 int end_warning;
4416 efdr_t *hold_file_ptr;
4417 proc_t * hold_proc_ptr;
4418 bfd_vma addr;
4419 asection *sec;
4420 symbolS *sym;
4421 HDRR *hdr;
4422 char *buf;
4423 char *bufend;
4424 unsigned long offset;
4425 char *extbuf;
4426 char *extbufend;
4427 unsigned long extoffset;
4428 varray_t ext_strings;
4429 static varray_t init_ext_strings = INIT_VARRAY (char);
4430 struct hash_control *ext_str_hash;
4431 char *set;
4432
4433 /* Make sure we have a file. */
4434 if (first_file == (efdr_t *) NULL)
4435 add_file ((const char *) NULL, 0);
4436
4437 /* Handle any top level tags. */
4438 for (ptag = top_tag_head->first_tag;
4439 ptag != (tag_t *) NULL;
4440 ptag = ptag_next)
4441 {
4442 if (ptag->forward_ref != (forward_t *) NULL)
4443 add_unknown_tag (ptag);
4444
4445 ptag_next = ptag->same_block;
4446 ptag->hash_ptr->tag_ptr = ptag->same_name;
4447 free_tag (ptag);
4448 }
4449
4450 free_thead (top_tag_head);
4451
4452 /* Output an ending symbol for all the files. We have to do this
4453 here for the last file, so we may as well do it for all of the
4454 files. */
4455 end_warning = 0;
4456 for (fil_ptr = first_file;
4457 fil_ptr != (efdr_t *) NULL;
4458 fil_ptr = fil_ptr->next_file)
4459 {
4460 cur_file_ptr = fil_ptr;
4461 while (cur_file_ptr->cur_scope->prev != (scope_t *) NULL)
4462 {
4463 cur_file_ptr->cur_scope = cur_file_ptr->cur_scope->prev;
4464 if (! end_warning)
4465 {
4466 as_warn ("Missing .end or .bend at end of file");
4467 end_warning = 1;
4468 }
4469 }
4470 (void) add_ecoff_symbol ((const char *) NULL,
4471 st_End, sc_Text,
4472 (symbolS *) NULL,
4473 (symint_t) 0,
4474 (symint_t) 0);
4475 }
4476
4477 /* Set the section VMA values. */
4478 addr = 0;
4479 for (sec = stdoutput->sections; sec != (asection *) NULL; sec = sec->next)
4480 {
4481 bfd_set_section_vma (stdoutput, sec, addr);
4482 addr += bfd_section_size (stdoutput, sec);
4483 }
4484
4485 /* Look through the symbols. Add debugging information for each
4486 symbol that has not already received it. */
4487 hold_file_ptr = cur_file_ptr;
4488 hold_proc_ptr = cur_proc_ptr;
4489 cur_proc_ptr = (proc_t *) NULL;
4490 for (sym = symbol_rootP; sym != (symbolS *) NULL; sym = symbol_next (sym))
4491 {
4492 if (sym->ecoff_symbol
4493 || sym->ecoff_file == (efdr_t *) NULL
4494 || (sym->bsym->flags & BSF_SECTION_SYM) != 0)
4495 continue;
4496
4497 cur_file_ptr = sym->ecoff_file;
4498 add_ecoff_symbol ((const char *) NULL, st_Nil, sc_Nil, sym,
4499 S_GET_VALUE (sym), indexNil);
4500 }
4501 cur_proc_ptr = hold_proc_ptr;
4502 cur_file_ptr = hold_file_ptr;
4503
4504 /* Build the symbolic information. */
4505 hdr = &ecoff_data (stdoutput)->symbolic_header;
4506 offset = 0;
4507 buf = xmalloc (PAGE_SIZE);
4508 bufend = buf + PAGE_SIZE;
4509
4510 /* Build the line number information. */
4511 hdr->cbLineOffset = offset;
4512 offset = ecoff_build_lineno (&buf, &bufend, offset, &hdr->ilineMax);
4513 hdr->cbLine = offset - hdr->cbLineOffset;
4514
4515 /* We don't use dense numbers at all. */
4516 hdr->idnMax = 0;
4517 hdr->cbDnOffset = 0;
4518
4519 /* We can't build the PDR table until we have built the symbols,
4520 because a PDR contains a symbol index. However, we set aside
4521 space at this point. */
4522 hdr->ipdMax = proc_cnt;
4523 hdr->cbPdOffset = offset;
4524 if (bufend - (buf + offset) < proc_cnt * external_pdr_size)
4525 (void) ecoff_add_bytes (&buf, &bufend, buf + offset,
4526 proc_cnt * external_pdr_size);
4527 offset += proc_cnt * external_pdr_size;
4528
4529 /* Build the symbols. It's convenient to build both the local and
4530 external symbols at the same time. We can put the local symbols
4531 directly into the buffer, but we have to hold the external
4532 symbols apart until we know where they are going to go. */
4533 extbuf = xmalloc (PAGE_SIZE);
4534 extbufend = extbuf + PAGE_SIZE;
4535 extoffset = 0;
4536 ext_strings = init_ext_strings;
4537 ext_str_hash = hash_new ();
4538 hdr->cbSymOffset = offset;
4539 offset = ecoff_build_symbols (&buf, &bufend, offset,
4540 &extbuf, &extbufend, &extoffset,
4541 &ext_strings, ext_str_hash);
4542 hdr->isymMax = (offset - hdr->cbSymOffset) / backend->external_sym_size;
4543
4544 /* Building the symbols initializes the symbol index in the PDR's.
4545 Now we can swap out the PDR's. */
4546 (void) ecoff_build_procs (&buf, &bufend, hdr->cbPdOffset);
4547
4548 /* We don't use optimization symbols. */
4549 hdr->ioptMax = 0;
4550 hdr->cbOptOffset = 0;
4551
4552 /* Swap out the auxiliary type information. */
4553 hdr->cbAuxOffset = offset;
4554 offset = ecoff_build_aux (&buf, &bufend, offset);
4555 hdr->iauxMax = (offset - hdr->cbAuxOffset) / sizeof (union aux_ext);
4556
4557 /* Copy out the local strings. */
4558 hdr->cbSsOffset = offset;
4559 offset = ecoff_build_ss (&buf, &bufend, offset);
4560 hdr->issMax = offset - hdr->cbSsOffset;
4561
4562 /* Copy out the external strings. */
4563 hdr->cbSsExtOffset = offset;
4564 offset += ecoff_build_strings (&buf, &bufend, offset, &ext_strings);
4565 offset = ecoff_padding_adjust (&buf, &bufend, offset, (char **) NULL);
4566 hdr->issExtMax = offset - hdr->cbSsExtOffset;
4567
4568 /* We don't use relative file descriptors. */
4569 hdr->crfd = 0;
4570 hdr->cbRfdOffset = 0;
4571
4572 /* Swap out the file descriptors. */
4573 hdr->cbFdOffset = offset;
4574 offset = ecoff_build_fdr (&buf, &bufend, offset);
4575 hdr->ifdMax = (offset - hdr->cbFdOffset) / backend->external_fdr_size;
4576
4577 /* Copy out the external symbols. */
4578 hdr->cbExtOffset = offset;
4579 if (bufend - (buf + offset) < extoffset)
4580 (void) ecoff_add_bytes (&buf, &bufend, buf + offset, extoffset);
4581 memcpy (buf + offset, extbuf, extoffset);
4582 offset += extoffset;
4583 hdr->iextMax = (offset - hdr->cbExtOffset) / backend->external_ext_size;
4584
4585 know ((offset & (backend->debug_align - 1)) == 0);
4586
4587 /* That completes the symbolic debugging information. We must now
4588 finish up the symbolic header and the ecoff_tdata structure. */
4589 set = buf;
4590 #define SET(ptr, count, type, size) \
4591 ecoff_data (stdoutput)->ptr = (type) set; \
4592 set += hdr->count * size
4593
4594 SET (line, cbLine, unsigned char *, sizeof (unsigned char));
4595 SET (external_dnr, idnMax, PTR, backend->external_dnr_size);
4596 SET (external_pdr, ipdMax, PTR, backend->external_pdr_size);
4597 SET (external_sym, isymMax, PTR, backend->external_sym_size);
4598 SET (external_opt, ioptMax, PTR, backend->external_opt_size);
4599 SET (external_aux, iauxMax, union aux_ext *, sizeof (union aux_ext));
4600 SET (ss, issMax, char *, sizeof (char));
4601 SET (ssext, issExtMax, char *, sizeof (char));
4602 SET (external_rfd, crfd, PTR, backend->external_rfd_size);
4603 SET (external_fdr, ifdMax, PTR, backend->external_fdr_size);
4604 SET (external_ext, iextMax, PTR, backend->external_ext_size);
4605
4606 #undef SET
4607
4608 #ifdef TC_MIPS
4609 /* Get the MIPS register masks. It's probably not worth setting up
4610 a generic interface for this. */
4611 ecoff_data (stdoutput)->gprmask = mips_gprmask;
4612 ecoff_data (stdoutput)->cprmask[0] = mips_cprmask[0];
4613 ecoff_data (stdoutput)->cprmask[1] = mips_cprmask[1];
4614 ecoff_data (stdoutput)->cprmask[2] = mips_cprmask[2];
4615 ecoff_data (stdoutput)->cprmask[3] = mips_cprmask[3];
4616 #endif
4617
4618 ecoff_data (stdoutput)->raw_size = offset;
4619 ecoff_data (stdoutput)->raw_syments = buf;
4620
4621 hdr->magic = magicSym;
4622 /* FIXME: what should hdr->vstamp be? */
4623
4624 bfd_set_symtab (stdoutput, bfd_get_outsymbols (stdoutput),
4625 (unsigned int) (hdr->isymMax + hdr->iextMax));
4626 }
4627 \f
4628 /* Allocate a cluster of pages. */
4629
4630 #ifndef MALLOC_CHECK
4631
4632 static page_t *
4633 allocate_cluster (npages)
4634 unsigned long npages;
4635 {
4636 register page_t *value = (page_t *) xmalloc (npages * PAGE_USIZE);
4637
4638 #ifdef ECOFF_DEBUG
4639 if (debug > 3)
4640 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4641 #endif
4642
4643 memset (value, 0, npages * PAGE_USIZE);
4644
4645 return value;
4646 }
4647
4648
4649 static page_t *cluster_ptr = NULL;
4650 static unsigned long pages_left = 0;
4651
4652 #endif /* MALLOC_CHECK */
4653
4654 /* Allocate one page (which is initialized to 0). */
4655
4656 static page_t *
4657 allocate_page ()
4658 {
4659 #ifndef MALLOC_CHECK
4660
4661 if (pages_left == 0)
4662 {
4663 pages_left = MAX_CLUSTER_PAGES;
4664 cluster_ptr = allocate_cluster (pages_left);
4665 }
4666
4667 pages_left--;
4668 return cluster_ptr++;
4669
4670 #else /* MALLOC_CHECK */
4671
4672 page_t *ptr;
4673
4674 ptr = xmalloc (PAGE_USIZE);
4675 memset (ptr, 0, PAGE_USIZE);
4676 return ptr;
4677
4678 #endif /* MALLOC_CHECK */
4679 }
4680 \f
4681 /* Allocate scoping information. */
4682
4683 static scope_t *
4684 allocate_scope ()
4685 {
4686 register scope_t *ptr;
4687 static scope_t initial_scope;
4688
4689 #ifndef MALLOC_CHECK
4690
4691 ptr = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4692 if (ptr != (scope_t *) NULL)
4693 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
4694 else
4695 {
4696 register int unallocated = alloc_counts[(int)alloc_type_scope].unallocated;
4697 register page_t *cur_page = alloc_counts[(int)alloc_type_scope].cur_page;
4698
4699 if (unallocated == 0)
4700 {
4701 unallocated = PAGE_SIZE / sizeof (scope_t);
4702 alloc_counts[(int)alloc_type_scope].cur_page = cur_page = allocate_page ();
4703 alloc_counts[(int)alloc_type_scope].total_pages++;
4704 }
4705
4706 ptr = &cur_page->scope[--unallocated];
4707 alloc_counts[(int)alloc_type_scope].unallocated = unallocated;
4708 }
4709
4710 #else
4711
4712 ptr = (scope_t *) xmalloc (sizeof (scope_t));
4713
4714 #endif
4715
4716 alloc_counts[(int)alloc_type_scope].total_alloc++;
4717 *ptr = initial_scope;
4718 return ptr;
4719 }
4720
4721 /* Free scoping information. */
4722
4723 static void
4724 free_scope (ptr)
4725 scope_t *ptr;
4726 {
4727 alloc_counts[(int)alloc_type_scope].total_free++;
4728
4729 #ifndef MALLOC_CHECK
4730 ptr->free = alloc_counts[(int)alloc_type_scope].free_list.f_scope;
4731 alloc_counts[(int)alloc_type_scope].free_list.f_scope = ptr;
4732 #else
4733 free ((PTR) ptr);
4734 #endif
4735 }
4736 \f
4737 /* Allocate links for pages in a virtual array. */
4738
4739 static vlinks_t *
4740 allocate_vlinks ()
4741 {
4742 register vlinks_t *ptr;
4743 static vlinks_t initial_vlinks;
4744
4745 #ifndef MALLOC_CHECK
4746
4747 register int unallocated = alloc_counts[(int)alloc_type_vlinks].unallocated;
4748 register page_t *cur_page = alloc_counts[(int)alloc_type_vlinks].cur_page;
4749
4750 if (unallocated == 0)
4751 {
4752 unallocated = PAGE_SIZE / sizeof (vlinks_t);
4753 alloc_counts[(int)alloc_type_vlinks].cur_page = cur_page = allocate_page ();
4754 alloc_counts[(int)alloc_type_vlinks].total_pages++;
4755 }
4756
4757 ptr = &cur_page->vlinks[--unallocated];
4758 alloc_counts[(int)alloc_type_vlinks].unallocated = unallocated;
4759
4760 #else
4761
4762 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
4763
4764 #endif
4765
4766 alloc_counts[(int)alloc_type_vlinks].total_alloc++;
4767 *ptr = initial_vlinks;
4768 return ptr;
4769 }
4770 \f
4771 /* Allocate string hash buckets. */
4772
4773 static shash_t *
4774 allocate_shash ()
4775 {
4776 register shash_t *ptr;
4777 static shash_t initial_shash;
4778
4779 #ifndef MALLOC_CHECK
4780
4781 register int unallocated = alloc_counts[(int)alloc_type_shash].unallocated;
4782 register page_t *cur_page = alloc_counts[(int)alloc_type_shash].cur_page;
4783
4784 if (unallocated == 0)
4785 {
4786 unallocated = PAGE_SIZE / sizeof (shash_t);
4787 alloc_counts[(int)alloc_type_shash].cur_page = cur_page = allocate_page ();
4788 alloc_counts[(int)alloc_type_shash].total_pages++;
4789 }
4790
4791 ptr = &cur_page->shash[--unallocated];
4792 alloc_counts[(int)alloc_type_shash].unallocated = unallocated;
4793
4794 #else
4795
4796 ptr = (shash_t *) xmalloc (sizeof (shash_t));
4797
4798 #endif
4799
4800 alloc_counts[(int)alloc_type_shash].total_alloc++;
4801 *ptr = initial_shash;
4802 return ptr;
4803 }
4804 \f
4805 /* Allocate type hash buckets. */
4806
4807 static thash_t *
4808 allocate_thash ()
4809 {
4810 register thash_t *ptr;
4811 static thash_t initial_thash;
4812
4813 #ifndef MALLOC_CHECK
4814
4815 register int unallocated = alloc_counts[(int)alloc_type_thash].unallocated;
4816 register page_t *cur_page = alloc_counts[(int)alloc_type_thash].cur_page;
4817
4818 if (unallocated == 0)
4819 {
4820 unallocated = PAGE_SIZE / sizeof (thash_t);
4821 alloc_counts[(int)alloc_type_thash].cur_page = cur_page = allocate_page ();
4822 alloc_counts[(int)alloc_type_thash].total_pages++;
4823 }
4824
4825 ptr = &cur_page->thash[--unallocated];
4826 alloc_counts[(int)alloc_type_thash].unallocated = unallocated;
4827
4828 #else
4829
4830 ptr = (thash_t *) xmalloc (sizeof (thash_t));
4831
4832 #endif
4833
4834 alloc_counts[(int)alloc_type_thash].total_alloc++;
4835 *ptr = initial_thash;
4836 return ptr;
4837 }
4838 \f
4839 /* Allocate structure, union, or enum tag information. */
4840
4841 static tag_t *
4842 allocate_tag ()
4843 {
4844 register tag_t *ptr;
4845 static tag_t initial_tag;
4846
4847 #ifndef MALLOC_CHECK
4848
4849 ptr = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4850 if (ptr != (tag_t *) NULL)
4851 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr->free;
4852 else
4853 {
4854 register int unallocated = alloc_counts[(int)alloc_type_tag].unallocated;
4855 register page_t *cur_page = alloc_counts[(int)alloc_type_tag].cur_page;
4856
4857 if (unallocated == 0)
4858 {
4859 unallocated = PAGE_SIZE / sizeof (tag_t);
4860 alloc_counts[(int)alloc_type_tag].cur_page = cur_page = allocate_page ();
4861 alloc_counts[(int)alloc_type_tag].total_pages++;
4862 }
4863
4864 ptr = &cur_page->tag[--unallocated];
4865 alloc_counts[(int)alloc_type_tag].unallocated = unallocated;
4866 }
4867
4868 #else
4869
4870 ptr = (tag_t *) xmalloc (sizeof (tag_t));
4871
4872 #endif
4873
4874 alloc_counts[(int)alloc_type_tag].total_alloc++;
4875 *ptr = initial_tag;
4876 return ptr;
4877 }
4878
4879 /* Free scoping information. */
4880
4881 static void
4882 free_tag (ptr)
4883 tag_t *ptr;
4884 {
4885 alloc_counts[(int)alloc_type_tag].total_free++;
4886
4887 #ifndef MALLOC_CHECK
4888 ptr->free = alloc_counts[(int)alloc_type_tag].free_list.f_tag;
4889 alloc_counts[(int)alloc_type_tag].free_list.f_tag = ptr;
4890 #else
4891 free ((PTR_T) ptr);
4892 #endif
4893 }
4894 \f
4895 /* Allocate forward reference to a yet unknown tag. */
4896
4897 static forward_t *
4898 allocate_forward ()
4899 {
4900 register forward_t *ptr;
4901 static forward_t initial_forward;
4902
4903 #ifndef MALLOC_CHECK
4904
4905 register int unallocated = alloc_counts[(int)alloc_type_forward].unallocated;
4906 register page_t *cur_page = alloc_counts[(int)alloc_type_forward].cur_page;
4907
4908 if (unallocated == 0)
4909 {
4910 unallocated = PAGE_SIZE / sizeof (forward_t);
4911 alloc_counts[(int)alloc_type_forward].cur_page = cur_page = allocate_page ();
4912 alloc_counts[(int)alloc_type_forward].total_pages++;
4913 }
4914
4915 ptr = &cur_page->forward[--unallocated];
4916 alloc_counts[(int)alloc_type_forward].unallocated = unallocated;
4917
4918 #else
4919
4920 ptr = (forward_t *) xmalloc (sizeof (forward_t));
4921
4922 #endif
4923
4924 alloc_counts[(int)alloc_type_forward].total_alloc++;
4925 *ptr = initial_forward;
4926 return ptr;
4927 }
4928 \f
4929 /* Allocate head of type hash list. */
4930
4931 static thead_t *
4932 allocate_thead ()
4933 {
4934 register thead_t *ptr;
4935 static thead_t initial_thead;
4936
4937 #ifndef MALLOC_CHECK
4938
4939 ptr = alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4940 if (ptr != (thead_t *) NULL)
4941 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
4942 else
4943 {
4944 register int unallocated = alloc_counts[(int)alloc_type_thead].unallocated;
4945 register page_t *cur_page = alloc_counts[(int)alloc_type_thead].cur_page;
4946
4947 if (unallocated == 0)
4948 {
4949 unallocated = PAGE_SIZE / sizeof (thead_t);
4950 alloc_counts[(int)alloc_type_thead].cur_page = cur_page = allocate_page ();
4951 alloc_counts[(int)alloc_type_thead].total_pages++;
4952 }
4953
4954 ptr = &cur_page->thead[--unallocated];
4955 alloc_counts[(int)alloc_type_thead].unallocated = unallocated;
4956 }
4957
4958 #else
4959
4960 ptr = (thead_t *) xmalloc (sizeof (thead_t));
4961
4962 #endif
4963
4964 alloc_counts[(int)alloc_type_thead].total_alloc++;
4965 *ptr = initial_thead;
4966 return ptr;
4967 }
4968
4969 /* Free scoping information. */
4970
4971 static void
4972 free_thead (ptr)
4973 thead_t *ptr;
4974 {
4975 alloc_counts[(int)alloc_type_thead].total_free++;
4976
4977 #ifndef MALLOC_CHECK
4978 ptr->free = (thead_t *) alloc_counts[(int)alloc_type_thead].free_list.f_thead;
4979 alloc_counts[(int)alloc_type_thead].free_list.f_thead = ptr;
4980 #else
4981 free ((PTR_T) ptr);
4982 #endif
4983 }
4984 \f
4985 static lineno_list_t *
4986 allocate_lineno_list ()
4987 {
4988 register lineno_list_t *ptr;
4989 static lineno_list_t initial_lineno_list;
4990
4991 #ifndef MALLOC_CHECK
4992
4993 register int unallocated = alloc_counts[(int)alloc_type_lineno].unallocated;
4994 register page_t *cur_page = alloc_counts[(int)alloc_type_lineno].cur_page;
4995
4996 if (unallocated == 0)
4997 {
4998 unallocated = PAGE_SIZE / sizeof (lineno_list_t);
4999 alloc_counts[(int)alloc_type_lineno].cur_page = cur_page = allocate_page ();
5000 alloc_counts[(int)alloc_type_lineno].total_pages++;
5001 }
5002
5003 ptr = &cur_page->lineno[--unallocated];
5004 alloc_counts[(int)alloc_type_lineno].unallocated = unallocated;
5005
5006 #else
5007
5008 ptr = (lineno_list_t *) xmalloc (sizeof (lineno_list_t));
5009
5010 #endif
5011
5012 alloc_counts[(int)alloc_type_lineno].total_alloc++;
5013 *ptr = initial_lineno_list;
5014 return ptr;
5015 }
A mirror of the official binutils-gdb repository