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2001-04-09 Andrew MacLeod <amacleod@redhat.com>
[official-gcc.git] / gcc / mips-tfile.c
blobd0804931817ec66b48f5ffaf4944016a41f6cec7
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001
6 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GNU CC.
10
11 GNU CC is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15
16 GNU CC is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GNU CC; see the file COPYING. If not, write to
23 the Free Software Foundation, 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indexs are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "version.h"
606 #include "intl.h"
607
608 #ifndef __SABER__
609 #define saber_stop()
610 #endif
611
612 #ifndef __LINE__
613 #define __LINE__ 0
614 #endif
615
616 /* Due to size_t being defined in sys/types.h and different
617 in stddef.h, we have to do this by hand..... Note, these
618 types are correct for MIPS based systems, and may not be
619 correct for other systems. Ultrix 4.0 and Silicon Graphics
620 have this fixed, but since the following is correct, and
621 the fact that including stddef.h gets you GCC's version
622 instead of the standard one it's not worth it to fix it. */
623
624 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
625 #define Size_t long unsigned int
626 #else
627 #define Size_t unsigned int
628 #endif
629 #define Ptrdiff_t long
630
631 /* The following might be called from obstack or malloc,
632 so they can't be static. */
633
634 extern void pfatal_with_name
635 PARAMS ((const char *)) ATTRIBUTE_NORETURN;
636 extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
637 void botch PARAMS ((const char *)) ATTRIBUTE_NORETURN;
638
639 extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
640 extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
641 \f
642 #ifndef MIPS_DEBUGGING_INFO
643
644 static int line_number;
645 static int cur_line_start;
646 static int debug;
647 static int had_errors;
648 static const char *progname;
649 static const char *input_name;
650
651 int
652 main ()
653 {
654 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
655 exit (1);
656 }
657
658 #else /* MIPS_DEBUGGING defined */
659 \f
660 /* The local and global symbols have a field index, so undo any defines
661 of index -> strchr. */
662
663 #undef index
664
665 #include <signal.h>
666
667 #ifndef CROSS_COMPILE
668 #include <a.out.h>
669 #else
670 #include "mips/a.out.h"
671 #endif /* CROSS_COMPILE */
672
673 #if defined (USG) || !defined (HAVE_STAB_H)
674 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
675 #else
676 #include <stab.h> /* On BSD, use the system's stab.h. */
677 #endif /* not USG */
678
679 #ifdef __GNU_STAB__
680 #define STAB_CODE_TYPE enum __stab_debug_code
681 #else
682 #define STAB_CODE_TYPE int
683 #endif
684
685 #ifndef MALLOC_CHECK
686 #ifdef __SABER__
687 #define MALLOC_CHECK
688 #endif
689 #endif
690
691 #define IS_ASM_IDENT(ch) \
692 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
693
694 \f
695 /* Redefinition of storage classes as an enumeration for better
696 debugging. */
697
698 typedef enum sc {
699 sc_Nil = scNil, /* no storage class */
700 sc_Text = scText, /* text symbol */
701 sc_Data = scData, /* initialized data symbol */
702 sc_Bss = scBss, /* un-initialized data symbol */
703 sc_Register = scRegister, /* value of symbol is register number */
704 sc_Abs = scAbs, /* value of symbol is absolute */
705 sc_Undefined = scUndefined, /* who knows? */
706 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
707 sc_Bits = scBits, /* this is a bit field */
708 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
709 sc_RegImage = scRegImage, /* register value saved on stack */
710 sc_Info = scInfo, /* symbol contains debugger information */
711 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
712 sc_SData = scSData, /* load time only small data */
713 sc_SBss = scSBss, /* load time only small common */
714 sc_RData = scRData, /* load time only read only data */
715 sc_Var = scVar, /* Var parameter (fortran,pascal) */
716 sc_Common = scCommon, /* common variable */
717 sc_SCommon = scSCommon, /* small common */
718 sc_VarRegister = scVarRegister, /* Var parameter in a register */
719 sc_Variant = scVariant, /* Variant record */
720 sc_SUndefined = scSUndefined, /* small undefined(external) data */
721 sc_Init = scInit, /* .init section symbol */
722 sc_Max = scMax /* Max storage class+1 */
723 } sc_t;
724
725 /* Redefinition of symbol type. */
726
727 typedef enum st {
728 st_Nil = stNil, /* Nuthin' special */
729 st_Global = stGlobal, /* external symbol */
730 st_Static = stStatic, /* static */
731 st_Param = stParam, /* procedure argument */
732 st_Local = stLocal, /* local variable */
733 st_Label = stLabel, /* label */
734 st_Proc = stProc, /* " " Procedure */
735 st_Block = stBlock, /* beginning of block */
736 st_End = stEnd, /* end (of anything) */
737 st_Member = stMember, /* member (of anything - struct/union/enum */
738 st_Typedef = stTypedef, /* type definition */
739 st_File = stFile, /* file name */
740 st_RegReloc = stRegReloc, /* register relocation */
741 st_Forward = stForward, /* forwarding address */
742 st_StaticProc = stStaticProc, /* load time only static procs */
743 st_Constant = stConstant, /* const */
744 st_Str = stStr, /* string */
745 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
746 st_Expr = stExpr, /* 2+2 vs. 4 */
747 st_Type = stType, /* post-coercion SER */
748 st_Max = stMax /* max type+1 */
749 } st_t;
750
751 /* Redefinition of type qualifiers. */
752
753 typedef enum tq {
754 tq_Nil = tqNil, /* bt is what you see */
755 tq_Ptr = tqPtr, /* pointer */
756 tq_Proc = tqProc, /* procedure */
757 tq_Array = tqArray, /* duh */
758 tq_Far = tqFar, /* longer addressing - 8086/8 land */
759 tq_Vol = tqVol, /* volatile */
760 tq_Max = tqMax /* Max type qualifier+1 */
761 } tq_t;
762
763 /* Redefinition of basic types. */
764
765 typedef enum bt {
766 bt_Nil = btNil, /* undefined */
767 bt_Adr = btAdr, /* address - integer same size as pointer */
768 bt_Char = btChar, /* character */
769 bt_UChar = btUChar, /* unsigned character */
770 bt_Short = btShort, /* short */
771 bt_UShort = btUShort, /* unsigned short */
772 bt_Int = btInt, /* int */
773 bt_UInt = btUInt, /* unsigned int */
774 bt_Long = btLong, /* long */
775 bt_ULong = btULong, /* unsigned long */
776 bt_Float = btFloat, /* float (real) */
777 bt_Double = btDouble, /* Double (real) */
778 bt_Struct = btStruct, /* Structure (Record) */
779 bt_Union = btUnion, /* Union (variant) */
780 bt_Enum = btEnum, /* Enumerated */
781 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
782 bt_Range = btRange, /* subrange of int */
783 bt_Set = btSet, /* pascal sets */
784 bt_Complex = btComplex, /* fortran complex */
785 bt_DComplex = btDComplex, /* fortran double complex */
786 bt_Indirect = btIndirect, /* forward or unnamed typedef */
787 bt_FixedDec = btFixedDec, /* Fixed Decimal */
788 bt_FloatDec = btFloatDec, /* Float Decimal */
789 bt_String = btString, /* Varying Length Character String */
790 bt_Bit = btBit, /* Aligned Bit String */
791 bt_Picture = btPicture, /* Picture */
792
793 #ifdef btVoid
794 bt_Void = btVoid, /* Void */
795 #else
796 #define bt_Void bt_Nil
797 #endif
798
799 bt_Max = btMax /* Max basic type+1 */
800 } bt_t;
801
802 \f
803
804 /* Basic COFF storage classes. */
805 enum coff_storage {
806 C_EFCN = -1,
807 C_NULL = 0,
808 C_AUTO = 1,
809 C_EXT = 2,
810 C_STAT = 3,
811 C_REG = 4,
812 C_EXTDEF = 5,
813 C_LABEL = 6,
814 C_ULABEL = 7,
815 C_MOS = 8,
816 C_ARG = 9,
817 C_STRTAG = 10,
818 C_MOU = 11,
819 C_UNTAG = 12,
820 C_TPDEF = 13,
821 C_USTATIC = 14,
822 C_ENTAG = 15,
823 C_MOE = 16,
824 C_REGPARM = 17,
825 C_FIELD = 18,
826 C_BLOCK = 100,
827 C_FCN = 101,
828 C_EOS = 102,
829 C_FILE = 103,
830 C_LINE = 104,
831 C_ALIAS = 105,
832 C_HIDDEN = 106,
833 C_MAX = 107
834 } coff_storage_t;
835
836 /* Regular COFF fundamental type. */
837 typedef enum coff_type {
838 T_NULL = 0,
839 T_ARG = 1,
840 T_CHAR = 2,
841 T_SHORT = 3,
842 T_INT = 4,
843 T_LONG = 5,
844 T_FLOAT = 6,
845 T_DOUBLE = 7,
846 T_STRUCT = 8,
847 T_UNION = 9,
848 T_ENUM = 10,
849 T_MOE = 11,
850 T_UCHAR = 12,
851 T_USHORT = 13,
852 T_UINT = 14,
853 T_ULONG = 15,
854 T_MAX = 16
855 } coff_type_t;
856
857 /* Regular COFF derived types. */
858 typedef enum coff_dt {
859 DT_NON = 0,
860 DT_PTR = 1,
861 DT_FCN = 2,
862 DT_ARY = 3,
863 DT_MAX = 4
864 } coff_dt_t;
865
866 #define N_BTMASK 017 /* bitmask to isolate basic type */
867 #define N_TMASK 003 /* bitmask to isolate derived type */
868 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
869 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
870 #define N_TQ 6 /* # of type qualifiers */
871
872 /* States for whether to hash type or not. */
873 typedef enum hash_state {
874 hash_no = 0, /* don't hash type */
875 hash_yes = 1, /* ok to hash type, or use previous hash */
876 hash_record = 2 /* ok to record hash, but don't use prev. */
877 } hash_state_t;
878
879
880 /* Types of different sized allocation requests. */
881 enum alloc_type {
882 alloc_type_none, /* dummy value */
883 alloc_type_scope, /* nested scopes linked list */
884 alloc_type_vlinks, /* glue linking pages in varray */
885 alloc_type_shash, /* string hash element */
886 alloc_type_thash, /* type hash element */
887 alloc_type_tag, /* struct/union/tag element */
888 alloc_type_forward, /* element to hold unknown tag */
889 alloc_type_thead, /* head of type hash list */
890 alloc_type_varray, /* general varray allocation */
891 alloc_type_last /* last+1 element for array bounds */
892 };
893
894 \f
895 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
896 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
897
898
899 /* Structures to provide n-number of virtual arrays, each of which can
900 grow linearly, and which are written in the object file as sequential
901 pages. On systems with a BSD malloc that define USE_MALLOC, the
902 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
903 adds its overhead, and rounds up to the next power of 2. Pages are
904 linked together via a linked list.
905
906 If PAGE_SIZE is > 4096, the string length in the shash_t structure
907 can't be represented (assuming there are strings > 4096 bytes). */
908
909 #ifndef PAGE_SIZE
910 #define PAGE_SIZE 4096 /* size of varray pages */
911 #endif
912
913 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
914
915
916 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
917 #ifndef USE_MALLOC /* in one memory request */
918 #define MAX_CLUSTER_PAGES 64
919 #else
920 #define MAX_CLUSTER_PAGES 63
921 #endif
922 #endif
923
924
925 /* Linked list connecting separate page allocations. */
926 typedef struct vlinks {
927 struct vlinks *prev; /* previous set of pages */
928 struct vlinks *next; /* next set of pages */
929 union page *datum; /* start of page */
930 unsigned long start_index; /* starting index # of page */
931 } vlinks_t;
932
933
934 /* Virtual array header. */
935 typedef struct varray {
936 vlinks_t *first; /* first page link */
937 vlinks_t *last; /* last page link */
938 unsigned long num_allocated; /* # objects allocated */
939 unsigned short object_size; /* size in bytes of each object */
940 unsigned short objects_per_page; /* # objects that can fit on a page */
941 unsigned short objects_last_page; /* # objects allocated on last page */
942 } varray_t;
943
944 #ifndef MALLOC_CHECK
945 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
946 #else
947 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
948 #endif
949
950 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
951 (vlinks_t *) 0, /* first */ \
952 (vlinks_t *) 0, /* last */ \
953 0, /* num_allocated */ \
954 sizeof (type), /* object_size */ \
955 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
956 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
957 }
958
959 /* Master type for indexes within the symbol table. */
960 typedef unsigned long symint_t;
961
962
963 /* Linked list support for nested scopes (file, block, structure, etc.). */
964 typedef struct scope {
965 struct scope *prev; /* previous scope level */
966 struct scope *free; /* free list pointer */
967 SYMR *lsym; /* pointer to local symbol node */
968 symint_t lnumber; /* lsym index */
969 st_t type; /* type of the node */
970 } scope_t;
971
972
973 /* Forward reference list for tags referenced, but not yet defined. */
974 typedef struct forward {
975 struct forward *next; /* next forward reference */
976 struct forward *free; /* free list pointer */
977 AUXU *ifd_ptr; /* pointer to store file index */
978 AUXU *index_ptr; /* pointer to store symbol index */
979 AUXU *type_ptr; /* pointer to munge type info */
980 } forward_t;
981
982
983 /* Linked list support for tags. The first tag in the list is always
984 the current tag for that block. */
985 typedef struct tag {
986 struct tag *free; /* free list pointer */
987 struct shash *hash_ptr; /* pointer to the hash table head */
988 struct tag *same_name; /* tag with same name in outer scope */
989 struct tag *same_block; /* next tag defined in the same block. */
990 struct forward *forward_ref; /* list of forward references */
991 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
992 symint_t ifd; /* file # tag defined in */
993 symint_t indx; /* index within file's local symbols */
994 } tag_t;
995
996
997 /* Head of a block's linked list of tags. */
998 typedef struct thead {
999 struct thead *prev; /* previous block */
1000 struct thead *free; /* free list pointer */
1001 struct tag *first_tag; /* first tag in block defined */
1002 } thead_t;
1003
1004
1005 /* Union containing pointers to each the small structures which are freed up. */
1006 typedef union small_free {
1007 scope_t *f_scope; /* scope structure */
1008 thead_t *f_thead; /* tag head structure */
1009 tag_t *f_tag; /* tag element structure */
1010 forward_t *f_forward; /* forward tag reference */
1011 } small_free_t;
1012
1013
1014 /* String hash table support. The size of the hash table must fit
1015 within a page. */
1016
1017 #ifndef SHASH_SIZE
1018 #define SHASH_SIZE 1009
1019 #endif
1020
1021 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1022
1023 typedef struct shash {
1024 struct shash *next; /* next hash value */
1025 char *string; /* string we are hashing */
1026 symint_t len; /* string length */
1027 symint_t indx; /* index within string table */
1028 EXTR *esym_ptr; /* global symbol pointer */
1029 SYMR *sym_ptr; /* local symbol pointer */
1030 SYMR *end_ptr; /* symbol pointer to end block */
1031 tag_t *tag_ptr; /* tag pointer */
1032 PDR *proc_ptr; /* procedure descriptor pointer */
1033 } shash_t;
1034
1035
1036 /* Type hash table support. The size of the hash table must fit
1037 within a page with the other extended file descriptor information.
1038 Because unique types which are hashed are fewer in number than
1039 strings, we use a smaller hash value. */
1040
1041 #ifndef THASH_SIZE
1042 #define THASH_SIZE 113
1043 #endif
1044
1045 typedef struct thash {
1046 struct thash *next; /* next hash value */
1047 AUXU type; /* type we are hashing */
1048 symint_t indx; /* index within string table */
1049 } thash_t;
1050
1051
1052 /* Extended file descriptor that contains all of the support necessary
1053 to add things to each file separately. */
1054 typedef struct efdr {
1055 FDR fdr; /* File header to be written out */
1056 FDR *orig_fdr; /* original file header */
1057 char *name; /* filename */
1058 int name_len; /* length of the filename */
1059 symint_t void_type; /* aux. pointer to 'void' type */
1060 symint_t int_type; /* aux. pointer to 'int' type */
1061 scope_t *cur_scope; /* current nested scopes */
1062 symint_t file_index; /* current file number */
1063 int nested_scopes; /* # nested scopes */
1064 varray_t strings; /* local strings */
1065 varray_t symbols; /* local symbols */
1066 varray_t procs; /* procedures */
1067 varray_t aux_syms; /* auxiliary symbols */
1068 struct efdr *next_file; /* next file descriptor */
1069 /* string/type hash tables */
1070 shash_t **shash_head; /* string hash table */
1071 thash_t *thash_head[THASH_SIZE];
1072 } efdr_t;
1073
1074 /* Pre-initialized extended file structure. */
1075 static efdr_t init_file =
1076 {
1077 { /* FDR structure */
1078 #ifdef __alpha
1079 0, /* adr: memory address of beginning of file */
1080 0, /* cbLineOffset: byte offset from header for this file ln's */
1081 0, /* cbLine: size of lines for this file */
1082 0, /* cbSs: number of bytes in the ss */
1083 0, /* rss: file name (of source, if known) */
1084 0, /* issBase: file's string space */
1085 0, /* isymBase: beginning of symbols */
1086 0, /* csym: count file's of symbols */
1087 0, /* ilineBase: file's line symbols */
1088 0, /* cline: count of file's line symbols */
1089 0, /* ioptBase: file's optimization entries */
1090 0, /* copt: count of file's optimization entries */
1091 0, /* ipdFirst: start of procedures for this file */
1092 0, /* cpd: count of procedures for this file */
1093 0, /* iauxBase: file's auxiliary entries */
1094 0, /* caux: count of file's auxiliary entries */
1095 0, /* rfdBase: index into the file indirect table */
1096 0, /* crfd: count file indirect entries */
1097 langC, /* lang: language for this file */
1098 1, /* fMerge: whether this file can be merged */
1099 0, /* fReadin: true if read in (not just created) */
1100 #ifdef HOST_WORDS_BIG_ENDIAN
1101 1, /* fBigendian: if 1, compiled on big endian machine */
1102 #else
1103 0, /* fBigendian: if 1, compiled on big endian machine */
1104 #endif
1105 0, /* fTrim: whether the symbol table was trimmed */
1106 GLEVEL_2, /* glevel: level this file was compiled with */
1107 0, /* reserved: reserved for future use */
1108 #else
1109 0, /* adr: memory address of beginning of file */
1110 0, /* rss: file name (of source, if known) */
1111 0, /* issBase: file's string space */
1112 0, /* cbSs: number of bytes in the ss */
1113 0, /* isymBase: beginning of symbols */
1114 0, /* csym: count file's of symbols */
1115 0, /* ilineBase: file's line symbols */
1116 0, /* cline: count of file's line symbols */
1117 0, /* ioptBase: file's optimization entries */
1118 0, /* copt: count of file's optimization entries */
1119 0, /* ipdFirst: start of procedures for this file */
1120 0, /* cpd: count of procedures for this file */
1121 0, /* iauxBase: file's auxiliary entries */
1122 0, /* caux: count of file's auxiliary entries */
1123 0, /* rfdBase: index into the file indirect table */
1124 0, /* crfd: count file indirect entries */
1125 langC, /* lang: language for this file */
1126 1, /* fMerge: whether this file can be merged */
1127 0, /* fReadin: true if read in (not just created) */
1128 #ifdef HOST_WORDS_BIG_ENDIAN
1129 1, /* fBigendian: if 1, compiled on big endian machine */
1130 #else
1131 0, /* fBigendian: if 1, compiled on big endian machine */
1132 #endif
1133 GLEVEL_2, /* glevel: level this file was compiled with */
1134 0, /* reserved: reserved for future use */
1135 0, /* cbLineOffset: byte offset from header for this file ln's */
1136 0, /* cbLine: size of lines for this file */
1137 #endif
1138 },
1139
1140 (FDR *) 0, /* orig_fdr: original file header pointer */
1141 (char *) 0, /* name: pointer to filename */
1142 0, /* name_len: length of filename */
1143 0, /* void_type: ptr to aux node for void type */
1144 0, /* int_type: ptr to aux node for int type */
1145 (scope_t *) 0, /* cur_scope: current scope being processed */
1146 0, /* file_index: current file # */
1147 0, /* nested_scopes: # nested scopes */
1148 INIT_VARRAY (char), /* strings: local string varray */
1149 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1150 INIT_VARRAY (PDR), /* procs: procedure varray */
1151 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1152
1153 (struct efdr *) 0, /* next_file: next file structure */
1154
1155 (shash_t **) 0, /* shash_head: string hash table */
1156 { 0 }, /* thash_head: type hash table */
1157 };
1158
1159
1160 static efdr_t *first_file; /* first file descriptor */
1161 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1162
1163
1164 /* Union of various things that are held in pages. */
1165 typedef union page {
1166 char byte [ PAGE_SIZE ];
1167 unsigned char ubyte [ PAGE_SIZE ];
1168 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1169 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1170 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1171 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1172 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1173 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1174 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1175 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1176 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1177 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1178 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1179 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1180 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1181 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1182 } page_t;
1183
1184
1185 /* Structure holding allocation information for small sized structures. */
1186 typedef struct alloc_info {
1187 const char *alloc_name; /* name of this allocation type (must be first) */
1188 page_t *cur_page; /* current page being allocated from */
1189 small_free_t free_list; /* current free list if any */
1190 int unallocated; /* number of elements unallocated on page */
1191 int total_alloc; /* total number of allocations */
1192 int total_free; /* total number of frees */
1193 int total_pages; /* total number of pages allocated */
1194 } alloc_info_t;
1195
1196 /* Type information collected together. */
1197 typedef struct type_info {
1198 bt_t basic_type; /* basic type */
1199 coff_type_t orig_type; /* original COFF-based type */
1200 int num_tq; /* # type qualifiers */
1201 int num_dims; /* # dimensions */
1202 int num_sizes; /* # sizes */
1203 int extra_sizes; /* # extra sizes not tied with dims */
1204 tag_t * tag_ptr; /* tag pointer */
1205 int bitfield; /* symbol is a bitfield */
1206 int unknown_tag; /* this is an unknown tag */
1207 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1208 symint_t dimensions [N_TQ]; /* dimensions for each array */
1209 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1210 struct/union/enum + bitfield size */
1211 } type_info_t;
1212
1213 /* Pre-initialized type_info struct. */
1214 static type_info_t type_info_init = {
1215 bt_Nil, /* basic type */
1216 T_NULL, /* original COFF-based type */
1217 0, /* # type qualifiers */
1218 0, /* # dimensions */
1219 0, /* # sizes */
1220 0, /* sizes not tied with dims */
1221 NULL, /* ptr to tag */
1222 0, /* bitfield */
1223 0, /* unknown tag */
1224 { /* type qualifiers */
1225 tq_Nil,
1226 tq_Nil,
1227 tq_Nil,
1228 tq_Nil,
1229 tq_Nil,
1230 tq_Nil,
1231 },
1232 { /* dimensions */
1233 0,
1234 0,
1235 0,
1236 0,
1237 0,
1238 0
1239 },
1240 { /* sizes */
1241 0,
1242 0,
1243 0,
1244 0,
1245 0,
1246 0,
1247 0,
1248 0,
1249 },
1250 };
1251
1252
1253 /* Global virtual arrays & hash table for external strings as well as
1254 for the tags table and global tables for file descriptors, and
1255 dense numbers. */
1256
1257 static varray_t file_desc = INIT_VARRAY (efdr_t);
1258 static varray_t dense_num = INIT_VARRAY (DNR);
1259 static varray_t tag_strings = INIT_VARRAY (char);
1260 static varray_t ext_strings = INIT_VARRAY (char);
1261 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1262
1263 static shash_t *orig_str_hash[SHASH_SIZE];
1264 static shash_t *ext_str_hash [SHASH_SIZE];
1265 static shash_t *tag_hash [SHASH_SIZE];
1266
1267 /* Static types for int and void. Also, remember the last function's
1268 type (which is set up when we encounter the declaration for the
1269 function, and used when the end block for the function is emitted. */
1270
1271 static type_info_t int_type_info;
1272 static type_info_t void_type_info;
1273 static type_info_t last_func_type_info;
1274 static EXTR *last_func_eptr;
1275
1276
1277 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1278 really should use bt_Void, but this causes the current ecoff GDB to
1279 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1280 2.0) doesn't understand it, even though the compiler generates it.
1281 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1282 suite, but for now go with what works. */
1283
1284 static bt_t map_coff_types[ (int)T_MAX ] = {
1285 bt_Nil, /* T_NULL */
1286 bt_Nil, /* T_ARG */
1287 bt_Char, /* T_CHAR */
1288 bt_Short, /* T_SHORT */
1289 bt_Int, /* T_INT */
1290 bt_Long, /* T_LONG */
1291 bt_Float, /* T_FLOAT */
1292 bt_Double, /* T_DOUBLE */
1293 bt_Struct, /* T_STRUCT */
1294 bt_Union, /* T_UNION */
1295 bt_Enum, /* T_ENUM */
1296 bt_Enum, /* T_MOE */
1297 bt_UChar, /* T_UCHAR */
1298 bt_UShort, /* T_USHORT */
1299 bt_UInt, /* T_UINT */
1300 bt_ULong /* T_ULONG */
1301 };
1302
1303 /* Convert COFF storage class to ECOFF storage class. */
1304 static sc_t map_coff_storage[ (int)C_MAX ] = {
1305 sc_Nil, /* 0: C_NULL */
1306 sc_Abs, /* 1: C_AUTO auto var */
1307 sc_Undefined, /* 2: C_EXT external */
1308 sc_Data, /* 3: C_STAT static */
1309 sc_Register, /* 4: C_REG register */
1310 sc_Undefined, /* 5: C_EXTDEF ??? */
1311 sc_Text, /* 6: C_LABEL label */
1312 sc_Text, /* 7: C_ULABEL user label */
1313 sc_Info, /* 8: C_MOS member of struct */
1314 sc_Abs, /* 9: C_ARG argument */
1315 sc_Info, /* 10: C_STRTAG struct tag */
1316 sc_Info, /* 11: C_MOU member of union */
1317 sc_Info, /* 12: C_UNTAG union tag */
1318 sc_Info, /* 13: C_TPDEF typedef */
1319 sc_Data, /* 14: C_USTATIC ??? */
1320 sc_Info, /* 15: C_ENTAG enum tag */
1321 sc_Info, /* 16: C_MOE member of enum */
1322 sc_Register, /* 17: C_REGPARM register parameter */
1323 sc_Bits, /* 18; C_FIELD bitfield */
1324 sc_Nil, /* 19 */
1325 sc_Nil, /* 20 */
1326 sc_Nil, /* 21 */
1327 sc_Nil, /* 22 */
1328 sc_Nil, /* 23 */
1329 sc_Nil, /* 24 */
1330 sc_Nil, /* 25 */
1331 sc_Nil, /* 26 */
1332 sc_Nil, /* 27 */
1333 sc_Nil, /* 28 */
1334 sc_Nil, /* 29 */
1335 sc_Nil, /* 30 */
1336 sc_Nil, /* 31 */
1337 sc_Nil, /* 32 */
1338 sc_Nil, /* 33 */
1339 sc_Nil, /* 34 */
1340 sc_Nil, /* 35 */
1341 sc_Nil, /* 36 */
1342 sc_Nil, /* 37 */
1343 sc_Nil, /* 38 */
1344 sc_Nil, /* 39 */
1345 sc_Nil, /* 40 */
1346 sc_Nil, /* 41 */
1347 sc_Nil, /* 42 */
1348 sc_Nil, /* 43 */
1349 sc_Nil, /* 44 */
1350 sc_Nil, /* 45 */
1351 sc_Nil, /* 46 */
1352 sc_Nil, /* 47 */
1353 sc_Nil, /* 48 */
1354 sc_Nil, /* 49 */
1355 sc_Nil, /* 50 */
1356 sc_Nil, /* 51 */
1357 sc_Nil, /* 52 */
1358 sc_Nil, /* 53 */
1359 sc_Nil, /* 54 */
1360 sc_Nil, /* 55 */
1361 sc_Nil, /* 56 */
1362 sc_Nil, /* 57 */
1363 sc_Nil, /* 58 */
1364 sc_Nil, /* 59 */
1365 sc_Nil, /* 60 */
1366 sc_Nil, /* 61 */
1367 sc_Nil, /* 62 */
1368 sc_Nil, /* 63 */
1369 sc_Nil, /* 64 */
1370 sc_Nil, /* 65 */
1371 sc_Nil, /* 66 */
1372 sc_Nil, /* 67 */
1373 sc_Nil, /* 68 */
1374 sc_Nil, /* 69 */
1375 sc_Nil, /* 70 */
1376 sc_Nil, /* 71 */
1377 sc_Nil, /* 72 */
1378 sc_Nil, /* 73 */
1379 sc_Nil, /* 74 */
1380 sc_Nil, /* 75 */
1381 sc_Nil, /* 76 */
1382 sc_Nil, /* 77 */
1383 sc_Nil, /* 78 */
1384 sc_Nil, /* 79 */
1385 sc_Nil, /* 80 */
1386 sc_Nil, /* 81 */
1387 sc_Nil, /* 82 */
1388 sc_Nil, /* 83 */
1389 sc_Nil, /* 84 */
1390 sc_Nil, /* 85 */
1391 sc_Nil, /* 86 */
1392 sc_Nil, /* 87 */
1393 sc_Nil, /* 88 */
1394 sc_Nil, /* 89 */
1395 sc_Nil, /* 90 */
1396 sc_Nil, /* 91 */
1397 sc_Nil, /* 92 */
1398 sc_Nil, /* 93 */
1399 sc_Nil, /* 94 */
1400 sc_Nil, /* 95 */
1401 sc_Nil, /* 96 */
1402 sc_Nil, /* 97 */
1403 sc_Nil, /* 98 */
1404 sc_Nil, /* 99 */
1405 sc_Text, /* 100: C_BLOCK block start/end */
1406 sc_Text, /* 101: C_FCN function start/end */
1407 sc_Info, /* 102: C_EOS end of struct/union/enum */
1408 sc_Nil, /* 103: C_FILE file start */
1409 sc_Nil, /* 104: C_LINE line number */
1410 sc_Nil, /* 105: C_ALIAS combined type info */
1411 sc_Nil, /* 106: C_HIDDEN ??? */
1412 };
1413
1414 /* Convert COFF storage class to ECOFF symbol type. */
1415 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1416 st_Nil, /* 0: C_NULL */
1417 st_Local, /* 1: C_AUTO auto var */
1418 st_Global, /* 2: C_EXT external */
1419 st_Static, /* 3: C_STAT static */
1420 st_Local, /* 4: C_REG register */
1421 st_Global, /* 5: C_EXTDEF ??? */
1422 st_Label, /* 6: C_LABEL label */
1423 st_Label, /* 7: C_ULABEL user label */
1424 st_Member, /* 8: C_MOS member of struct */
1425 st_Param, /* 9: C_ARG argument */
1426 st_Block, /* 10: C_STRTAG struct tag */
1427 st_Member, /* 11: C_MOU member of union */
1428 st_Block, /* 12: C_UNTAG union tag */
1429 st_Typedef, /* 13: C_TPDEF typedef */
1430 st_Static, /* 14: C_USTATIC ??? */
1431 st_Block, /* 15: C_ENTAG enum tag */
1432 st_Member, /* 16: C_MOE member of enum */
1433 st_Param, /* 17: C_REGPARM register parameter */
1434 st_Member, /* 18; C_FIELD bitfield */
1435 st_Nil, /* 19 */
1436 st_Nil, /* 20 */
1437 st_Nil, /* 21 */
1438 st_Nil, /* 22 */
1439 st_Nil, /* 23 */
1440 st_Nil, /* 24 */
1441 st_Nil, /* 25 */
1442 st_Nil, /* 26 */
1443 st_Nil, /* 27 */
1444 st_Nil, /* 28 */
1445 st_Nil, /* 29 */
1446 st_Nil, /* 30 */
1447 st_Nil, /* 31 */
1448 st_Nil, /* 32 */
1449 st_Nil, /* 33 */
1450 st_Nil, /* 34 */
1451 st_Nil, /* 35 */
1452 st_Nil, /* 36 */
1453 st_Nil, /* 37 */
1454 st_Nil, /* 38 */
1455 st_Nil, /* 39 */
1456 st_Nil, /* 40 */
1457 st_Nil, /* 41 */
1458 st_Nil, /* 42 */
1459 st_Nil, /* 43 */
1460 st_Nil, /* 44 */
1461 st_Nil, /* 45 */
1462 st_Nil, /* 46 */
1463 st_Nil, /* 47 */
1464 st_Nil, /* 48 */
1465 st_Nil, /* 49 */
1466 st_Nil, /* 50 */
1467 st_Nil, /* 51 */
1468 st_Nil, /* 52 */
1469 st_Nil, /* 53 */
1470 st_Nil, /* 54 */
1471 st_Nil, /* 55 */
1472 st_Nil, /* 56 */
1473 st_Nil, /* 57 */
1474 st_Nil, /* 58 */
1475 st_Nil, /* 59 */
1476 st_Nil, /* 60 */
1477 st_Nil, /* 61 */
1478 st_Nil, /* 62 */
1479 st_Nil, /* 63 */
1480 st_Nil, /* 64 */
1481 st_Nil, /* 65 */
1482 st_Nil, /* 66 */
1483 st_Nil, /* 67 */
1484 st_Nil, /* 68 */
1485 st_Nil, /* 69 */
1486 st_Nil, /* 70 */
1487 st_Nil, /* 71 */
1488 st_Nil, /* 72 */
1489 st_Nil, /* 73 */
1490 st_Nil, /* 74 */
1491 st_Nil, /* 75 */
1492 st_Nil, /* 76 */
1493 st_Nil, /* 77 */
1494 st_Nil, /* 78 */
1495 st_Nil, /* 79 */
1496 st_Nil, /* 80 */
1497 st_Nil, /* 81 */
1498 st_Nil, /* 82 */
1499 st_Nil, /* 83 */
1500 st_Nil, /* 84 */
1501 st_Nil, /* 85 */
1502 st_Nil, /* 86 */
1503 st_Nil, /* 87 */
1504 st_Nil, /* 88 */
1505 st_Nil, /* 89 */
1506 st_Nil, /* 90 */
1507 st_Nil, /* 91 */
1508 st_Nil, /* 92 */
1509 st_Nil, /* 93 */
1510 st_Nil, /* 94 */
1511 st_Nil, /* 95 */
1512 st_Nil, /* 96 */
1513 st_Nil, /* 97 */
1514 st_Nil, /* 98 */
1515 st_Nil, /* 99 */
1516 st_Block, /* 100: C_BLOCK block start/end */
1517 st_Proc, /* 101: C_FCN function start/end */
1518 st_End, /* 102: C_EOS end of struct/union/enum */
1519 st_File, /* 103: C_FILE file start */
1520 st_Nil, /* 104: C_LINE line number */
1521 st_Nil, /* 105: C_ALIAS combined type info */
1522 st_Nil, /* 106: C_HIDDEN ??? */
1523 };
1524
1525 /* Map COFF derived types to ECOFF type qualifiers. */
1526 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1527 tq_Nil, /* 0: DT_NON no more qualifiers */
1528 tq_Ptr, /* 1: DT_PTR pointer */
1529 tq_Proc, /* 2: DT_FCN function */
1530 tq_Array, /* 3: DT_ARY array */
1531 };
1532
1533
1534 /* Keep track of different sized allocation requests. */
1535 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1536
1537 \f
1538 /* Pointers and such to the original symbol table that is read in. */
1539 static struct filehdr orig_file_header; /* global object file header */
1540
1541 static HDRR orig_sym_hdr; /* symbolic header on input */
1542 static char *orig_linenum; /* line numbers */
1543 static DNR *orig_dense; /* dense numbers */
1544 static PDR *orig_procs; /* procedures */
1545 static SYMR *orig_local_syms; /* local symbols */
1546 static OPTR *orig_opt_syms; /* optimization symbols */
1547 static AUXU *orig_aux_syms; /* auxiliary symbols */
1548 static char *orig_local_strs; /* local strings */
1549 static char *orig_ext_strs; /* external strings */
1550 static FDR *orig_files; /* file descriptors */
1551 static symint_t *orig_rfds; /* relative file desc's */
1552 static EXTR *orig_ext_syms; /* external symbols */
1553
1554 /* Macros to convert an index into a given object within the original
1555 symbol table. */
1556 #define CHECK(num,max,str) \
1557 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1558
1559 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1560 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1561 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1562 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1563 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1564 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1565 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1566 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1567 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1568 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1569 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1570
1571 /* Various other statics. */
1572 static HDRR symbolic_header; /* symbolic header */
1573 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1574 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1575 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1576 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1577 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1578 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1579 static long file_offset = 0; /* current file offset */
1580 static long max_file_offset = 0; /* maximum file offset */
1581 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1582 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1583 static char *progname = (char *) 0; /* program name for errors */
1584 static const char *input_name = "stdin"; /* name of input file */
1585 static char *object_name = (char *) 0; /* tmp. name of object file */
1586 static char *obj_in_name = (char *) 0; /* name of input object file */
1587 static char *cur_line_start = (char *) 0; /* current line read in */
1588 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1589 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1590 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1591 static long line_number = 0; /* current input line number */
1592 static int debug = 0; /* trace functions */
1593 static int version = 0; /* print version # */
1594 static int had_errors = 0; /* != 0 if errors were found */
1595 static int rename_output = 0; /* != 0 if rename output file*/
1596 static int delete_input = 0; /* != 0 if delete input after done */
1597 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1598
1599
1600 /* Pseudo symbol to use when putting stabs into the symbol table. */
1601 #ifndef STABS_SYMBOL
1602 #define STABS_SYMBOL "@stabs"
1603 #endif
1604
1605 static char stabs_symbol[] = STABS_SYMBOL;
1606
1607 \f
1608 /* Forward reference for functions. See the definition for more details. */
1609
1610 #ifndef STATIC
1611 #define STATIC static
1612 #endif
1613
1614 STATIC int out_of_bounds PARAMS ((symint_t, symint_t, const char *, int));
1615
1616 STATIC shash_t *hash_string PARAMS ((const char *,
1617 Ptrdiff_t,
1618 shash_t **,
1619 symint_t *));
1620
1621 STATIC symint_t add_string PARAMS ((varray_t *,
1622 shash_t **,
1623 const char *,
1624 const char *,
1625 shash_t **));
1626
1627 STATIC symint_t add_local_symbol
1628 PARAMS ((const char *,
1629 const char *,
1630 st_t,
1631 sc_t,
1632 symint_t,
1633 symint_t));
1634
1635 STATIC symint_t add_ext_symbol PARAMS ((const char *,
1636 const char *,
1637 st_t,
1638 sc_t,
1639 long,
1640 symint_t,
1641 int));
1642
1643 STATIC symint_t add_aux_sym_symint
1644 PARAMS ((symint_t));
1645
1646 STATIC symint_t add_aux_sym_rndx
1647 PARAMS ((int, symint_t));
1648
1649 STATIC symint_t add_aux_sym_tir PARAMS ((type_info_t *,
1650 hash_state_t,
1651 thash_t **));
1652
1653 STATIC tag_t * get_tag PARAMS ((const char *,
1654 const char *,
1655 symint_t,
1656 bt_t));
1657
1658 STATIC void add_unknown_tag PARAMS ((tag_t *));
1659
1660 STATIC void add_procedure PARAMS ((const char *,
1661 const char *));
1662
1663 STATIC void add_file PARAMS ((const char *,
1664 const char *));
1665
1666 STATIC void add_bytes PARAMS ((varray_t *,
1667 char *,
1668 Size_t));
1669
1670 STATIC void add_varray_page PARAMS ((varray_t *));
1671
1672 STATIC void update_headers PARAMS ((void));
1673
1674 STATIC void write_varray PARAMS ((varray_t *, off_t, const char *));
1675 STATIC void write_object PARAMS ((void));
1676 STATIC const char *st_to_string PARAMS ((st_t));
1677 STATIC const char *sc_to_string PARAMS ((sc_t));
1678 STATIC char *read_line PARAMS ((void));
1679 STATIC void parse_input PARAMS ((void));
1680 STATIC void mark_stabs PARAMS ((const char *));
1681 STATIC void parse_begin PARAMS ((const char *));
1682 STATIC void parse_bend PARAMS ((const char *));
1683 STATIC void parse_def PARAMS ((const char *));
1684 STATIC void parse_end PARAMS ((const char *));
1685 STATIC void parse_ent PARAMS ((const char *));
1686 STATIC void parse_file PARAMS ((const char *));
1687 STATIC void parse_stabs_common
1688 PARAMS ((const char *, const char *, const char *));
1689 STATIC void parse_stabs PARAMS ((const char *));
1690 STATIC void parse_stabn PARAMS ((const char *));
1691 STATIC page_t *read_seek PARAMS ((Size_t, off_t, const char *));
1692 STATIC void copy_object PARAMS ((void));
1693
1694 STATIC void catch_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
1695 STATIC page_t *allocate_page PARAMS ((void));
1696
1697 STATIC page_t *allocate_multiple_pages
1698 PARAMS ((Size_t));
1699
1700 STATIC void free_multiple_pages
1701 PARAMS ((page_t *, Size_t));
1702
1703 #ifndef MALLOC_CHECK
1704 STATIC page_t *allocate_cluster
1705 PARAMS ((Size_t));
1706 #endif
1707
1708 STATIC forward_t *allocate_forward PARAMS ((void));
1709 STATIC scope_t *allocate_scope PARAMS ((void));
1710 STATIC shash_t *allocate_shash PARAMS ((void));
1711 STATIC tag_t *allocate_tag PARAMS ((void));
1712 STATIC thash_t *allocate_thash PARAMS ((void));
1713 STATIC thead_t *allocate_thead PARAMS ((void));
1714 STATIC vlinks_t *allocate_vlinks PARAMS ((void));
1715
1716 STATIC void free_forward PARAMS ((forward_t *));
1717 STATIC void free_scope PARAMS ((scope_t *));
1718 STATIC void free_tag PARAMS ((tag_t *));
1719 STATIC void free_thead PARAMS ((thead_t *));
1720
1721 extern char *optarg;
1722 extern int optind;
1723 extern int opterr;
1724 \f
1725 /* List of assembler pseudo ops and beginning sequences that need
1726 special actions. Someday, this should be a hash table, and such,
1727 but for now a linear list of names and calls to memcmp will
1728 do...... */
1729
1730 typedef struct _pseudo_ops {
1731 const char *name; /* pseudo-op in ascii */
1732 int len; /* length of name to compare */
1733 void (*func) PARAMS ((const char *)); /* function to handle line */
1734 } pseudo_ops_t;
1735
1736 static pseudo_ops_t pseudo_ops[] = {
1737 { "#.def", sizeof("#.def")-1, parse_def },
1738 { "#.begin", sizeof("#.begin")-1, parse_begin },
1739 { "#.bend", sizeof("#.bend")-1, parse_bend },
1740 { ".end", sizeof(".end")-1, parse_end },
1741 { ".ent", sizeof(".ent")-1, parse_ent },
1742 { ".file", sizeof(".file")-1, parse_file },
1743 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1744 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1745 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1746 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1747 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1748 };
1749
1750 \f
1751 /* Add a page to a varray object. */
1752
1753 STATIC void
1754 add_varray_page (vp)
1755 varray_t *vp; /* varray to add page to */
1756 {
1757 vlinks_t *new_links = allocate_vlinks ();
1758
1759 #ifdef MALLOC_CHECK
1760 if (vp->object_size > 1)
1761 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1762 else
1763 #endif
1764 new_links->datum = allocate_page ();
1765
1766 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1767 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1768
1769 new_links->start_index = vp->num_allocated;
1770 vp->objects_last_page = 0;
1771
1772 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1773 vp->first = vp->last = new_links;
1774 else
1775 { /* 2nd or greater allocation */
1776 new_links->prev = vp->last;
1777 vp->last->next = new_links;
1778 vp->last = new_links;
1779 }
1780 }
1781
1782 \f
1783 /* Compute hash code (from tree.c) */
1784
1785 #define HASHBITS 30
1786
1787 STATIC shash_t *
1788 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1789 const char *text; /* ptr to text to hash */
1790 Ptrdiff_t hash_len; /* length of the text */
1791 shash_t **hash_tbl; /* hash table */
1792 symint_t *ret_hash_index; /* ptr to store hash index */
1793 {
1794 register unsigned long hi;
1795 register Ptrdiff_t i;
1796 register shash_t *ptr;
1797 register int first_ch = *text;
1798
1799 hi = hash_len;
1800 for (i = 0; i < hash_len; i++)
1801 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1802
1803 hi &= (1 << HASHBITS) - 1;
1804 hi %= SHASH_SIZE;
1805
1806 if (ret_hash_index != (symint_t *) 0)
1807 *ret_hash_index = hi;
1808
1809 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1810 if ((symint_t) hash_len == ptr->len
1811 && first_ch == ptr->string[0]
1812 && memcmp (text, ptr->string, hash_len) == 0)
1813 break;
1814
1815 return ptr;
1816 }
1817
1818 \f
1819 /* Add a string (and null pad) to one of the string tables. A
1820 consequence of hashing strings, is that we don't let strings
1821 cross page boundaries. The extra nulls will be ignored. */
1822
1823 STATIC symint_t
1824 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1825 varray_t *vp; /* string virtual array */
1826 shash_t **hash_tbl; /* ptr to hash table */
1827 const char *start; /* 1st byte in string */
1828 const char *end_p1; /* 1st byte after string */
1829 shash_t **ret_hash; /* return hash pointer */
1830 {
1831 register Ptrdiff_t len = end_p1 - start;
1832 register shash_t *hash_ptr;
1833 symint_t hi;
1834
1835 if (len >= (Ptrdiff_t) PAGE_USIZE)
1836 fatal ("String too big (%ld bytes)", (long) len);
1837
1838 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1839 if (hash_ptr == (shash_t *) 0)
1840 {
1841 register char *p;
1842
1843 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1844 {
1845 vp->num_allocated
1846 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1847 add_varray_page (vp);
1848 }
1849
1850 hash_ptr = allocate_shash ();
1851 hash_ptr->next = hash_tbl[hi];
1852 hash_tbl[hi] = hash_ptr;
1853
1854 hash_ptr->len = len;
1855 hash_ptr->indx = vp->num_allocated;
1856 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1857
1858 vp->objects_last_page += len+1;
1859 vp->num_allocated += len+1;
1860
1861 while (len-- > 0)
1862 *p++ = *start++;
1863
1864 *p = '\0';
1865 }
1866
1867 if (ret_hash != (shash_t **) 0)
1868 *ret_hash = hash_ptr;
1869
1870 return hash_ptr->indx;
1871 }
1872
1873 \f
1874 /* Add a local symbol. */
1875
1876 STATIC symint_t
1877 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1878 const char *str_start; /* first byte in string */
1879 const char *str_end_p1; /* first byte after string */
1880 st_t type; /* symbol type */
1881 sc_t storage; /* storage class */
1882 symint_t value; /* value of symbol */
1883 symint_t indx; /* index to local/aux. syms */
1884 {
1885 register symint_t ret;
1886 register SYMR *psym;
1887 register scope_t *pscope;
1888 register thead_t *ptag_head;
1889 register tag_t *ptag;
1890 register tag_t *ptag_next;
1891 register varray_t *vp = &cur_file_ptr->symbols;
1892 register int scope_delta = 0;
1893 shash_t *hash_ptr = (shash_t *) 0;
1894
1895 if (vp->objects_last_page == vp->objects_per_page)
1896 add_varray_page (vp);
1897
1898 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1899
1900 psym->value = value;
1901 psym->st = (unsigned) type;
1902 psym->sc = (unsigned) storage;
1903 psym->index = indx;
1904 psym->iss = (str_start == (const char *) 0)
1905 ? 0
1906 : add_string (&cur_file_ptr->strings,
1907 &cur_file_ptr->shash_head[0],
1908 str_start,
1909 str_end_p1,
1910 &hash_ptr);
1911
1912 ret = vp->num_allocated++;
1913
1914 if (MIPS_IS_STAB(psym))
1915 return ret;
1916
1917 /* Save the symbol within the hash table if this is a static
1918 item, and it has a name. */
1919 if (hash_ptr != (shash_t *) 0
1920 && (type == st_Global || type == st_Static || type == st_Label
1921 || type == st_Proc || type == st_StaticProc))
1922 hash_ptr->sym_ptr = psym;
1923
1924 /* push or pop a scope if appropriate. */
1925 switch (type)
1926 {
1927 default:
1928 break;
1929
1930 case st_File: /* beginning of file */
1931 case st_Proc: /* procedure */
1932 case st_StaticProc: /* static procedure */
1933 case st_Block: /* begin scope */
1934 pscope = allocate_scope ();
1935 pscope->prev = cur_file_ptr->cur_scope;
1936 pscope->lsym = psym;
1937 pscope->lnumber = ret;
1938 pscope->type = type;
1939 cur_file_ptr->cur_scope = pscope;
1940
1941 if (type != st_File)
1942 scope_delta = 1;
1943
1944 /* For every block type except file, struct, union, or
1945 enumeration blocks, push a level on the tag stack. We omit
1946 file types, so that tags can span file boundaries. */
1947 if (type != st_File && storage != sc_Info)
1948 {
1949 ptag_head = allocate_thead ();
1950 ptag_head->first_tag = 0;
1951 ptag_head->prev = cur_tag_head;
1952 cur_tag_head = ptag_head;
1953 }
1954 break;
1955
1956 case st_End:
1957 pscope = cur_file_ptr->cur_scope;
1958 if (pscope == (scope_t *)0)
1959 error ("internal error, too many st_End's");
1960
1961 else
1962 {
1963 st_t begin_type = (st_t) pscope->lsym->st;
1964
1965 if (begin_type != st_File)
1966 scope_delta = -1;
1967
1968 /* Except for file, structure, union, or enumeration end
1969 blocks remove all tags created within this scope. */
1970 if (begin_type != st_File && storage != sc_Info)
1971 {
1972 ptag_head = cur_tag_head;
1973 cur_tag_head = ptag_head->prev;
1974
1975 for (ptag = ptag_head->first_tag;
1976 ptag != (tag_t *) 0;
1977 ptag = ptag_next)
1978 {
1979 if (ptag->forward_ref != (forward_t *) 0)
1980 add_unknown_tag (ptag);
1981
1982 ptag_next = ptag->same_block;
1983 ptag->hash_ptr->tag_ptr = ptag->same_name;
1984 free_tag (ptag);
1985 }
1986
1987 free_thead (ptag_head);
1988 }
1989
1990 cur_file_ptr->cur_scope = pscope->prev;
1991 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1992
1993 if (storage != sc_Info)
1994 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1995
1996 if (begin_type == st_File || begin_type == st_Block)
1997 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1998
1999 /* Functions push two or more aux words as follows:
2000 1st word: index+1 of the end symbol
2001 2nd word: type of the function (plus any aux words needed).
2002 Also, tie the external pointer back to the function begin symbol. */
2003 else
2004 {
2005 symint_t type;
2006 pscope->lsym->index = add_aux_sym_symint (ret+1);
2007 type = add_aux_sym_tir (&last_func_type_info,
2008 hash_no,
2009 &cur_file_ptr->thash_head[0]);
2010 if (last_func_eptr)
2011 {
2012 last_func_eptr->ifd = cur_file_ptr->file_index;
2013
2014 /* The index for an external st_Proc symbol is the index
2015 of the st_Proc symbol in the local symbol table. */
2016 last_func_eptr->asym.index = psym->index;
2017 }
2018 }
2019
2020 free_scope (pscope);
2021 }
2022 }
2023
2024 cur_file_ptr->nested_scopes += scope_delta;
2025
2026 if (debug && type != st_File
2027 && (debug > 2 || type == st_Block || type == st_End
2028 || type == st_Proc || type == st_StaticProc))
2029 {
2030 const char *sc_str = sc_to_string (storage);
2031 const char *st_str = st_to_string (type);
2032 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2033
2034 fprintf (stderr,
2035 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2036 value, depth, sc_str);
2037
2038 if (str_start && str_end_p1 - str_start > 0)
2039 fprintf (stderr, " st= %-11s name= %.*s\n",
2040 st_str, (int) (str_end_p1 - str_start), str_start);
2041 else
2042 {
2043 Size_t len = strlen (st_str);
2044 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2045 }
2046 }
2047
2048 return ret;
2049 }
2050
2051 \f
2052 /* Add an external symbol. */
2053
2054 STATIC symint_t
2055 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2056 const char *str_start; /* first byte in string */
2057 const char *str_end_p1; /* first byte after string */
2058 st_t type; /* symbol type */
2059 sc_t storage; /* storage class */
2060 long value; /* value of symbol */
2061 symint_t indx; /* index to local/aux. syms */
2062 int ifd; /* file index */
2063 {
2064 register EXTR *psym;
2065 register varray_t *vp = &ext_symbols;
2066 shash_t *hash_ptr = (shash_t *) 0;
2067
2068 if (debug > 1)
2069 {
2070 const char *sc_str = sc_to_string (storage);
2071 const char *st_str = st_to_string (type);
2072
2073 fprintf (stderr,
2074 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2075 value, ifd, sc_str);
2076
2077 if (str_start && str_end_p1 - str_start > 0)
2078 fprintf (stderr, " st= %-11s name= %.*s\n",
2079 st_str, (int) (str_end_p1 - str_start), str_start);
2080 else
2081 fprintf (stderr, " st= %s\n", st_str);
2082 }
2083
2084 if (vp->objects_last_page == vp->objects_per_page)
2085 add_varray_page (vp);
2086
2087 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2088
2089 psym->ifd = ifd;
2090 psym->asym.value = value;
2091 psym->asym.st = (unsigned) type;
2092 psym->asym.sc = (unsigned) storage;
2093 psym->asym.index = indx;
2094 psym->asym.iss = (str_start == (const char *) 0)
2095 ? 0
2096 : add_string (&ext_strings,
2097 &ext_str_hash[0],
2098 str_start,
2099 str_end_p1,
2100 &hash_ptr);
2101
2102 hash_ptr->esym_ptr = psym;
2103 return vp->num_allocated++;
2104 }
2105
2106 \f
2107 /* Add an auxiliary symbol (passing a symint). */
2108
2109 STATIC symint_t
2110 add_aux_sym_symint (aux_word)
2111 symint_t aux_word; /* auxiliary information word */
2112 {
2113 register AUXU *aux_ptr;
2114 register efdr_t *file_ptr = cur_file_ptr;
2115 register varray_t *vp = &file_ptr->aux_syms;
2116
2117 if (vp->objects_last_page == vp->objects_per_page)
2118 add_varray_page (vp);
2119
2120 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2121 aux_ptr->isym = aux_word;
2122
2123 return vp->num_allocated++;
2124 }
2125
2126
2127 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2128
2129 STATIC symint_t
2130 add_aux_sym_rndx (file_index, sym_index)
2131 int file_index;
2132 symint_t sym_index;
2133 {
2134 register AUXU *aux_ptr;
2135 register efdr_t *file_ptr = cur_file_ptr;
2136 register varray_t *vp = &file_ptr->aux_syms;
2137
2138 if (vp->objects_last_page == vp->objects_per_page)
2139 add_varray_page (vp);
2140
2141 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2142 aux_ptr->rndx.rfd = file_index;
2143 aux_ptr->rndx.index = sym_index;
2144
2145 return vp->num_allocated++;
2146 }
2147
2148 \f
2149 /* Add an auxiliary symbol (passing the basic type and possibly
2150 type qualifiers). */
2151
2152 STATIC symint_t
2153 add_aux_sym_tir (t, state, hash_tbl)
2154 type_info_t *t; /* current type information */
2155 hash_state_t state; /* whether to hash type or not */
2156 thash_t **hash_tbl; /* pointer to hash table to use */
2157 {
2158 register AUXU *aux_ptr;
2159 register efdr_t *file_ptr = cur_file_ptr;
2160 register varray_t *vp = &file_ptr->aux_syms;
2161 static AUXU init_aux;
2162 symint_t ret;
2163 int i;
2164 AUXU aux;
2165
2166 aux = init_aux;
2167 aux.ti.bt = (int) t->basic_type;
2168 aux.ti.continued = 0;
2169 aux.ti.fBitfield = t->bitfield;
2170
2171 aux.ti.tq0 = (int) t->type_qualifiers[0];
2172 aux.ti.tq1 = (int) t->type_qualifiers[1];
2173 aux.ti.tq2 = (int) t->type_qualifiers[2];
2174 aux.ti.tq3 = (int) t->type_qualifiers[3];
2175 aux.ti.tq4 = (int) t->type_qualifiers[4];
2176 aux.ti.tq5 = (int) t->type_qualifiers[5];
2177
2178
2179 /* For anything that adds additional information, we must not hash,
2180 so check here, and reset our state. */
2181
2182 if (state != hash_no
2183 && (t->type_qualifiers[0] == tq_Array
2184 || t->type_qualifiers[1] == tq_Array
2185 || t->type_qualifiers[2] == tq_Array
2186 || t->type_qualifiers[3] == tq_Array
2187 || t->type_qualifiers[4] == tq_Array
2188 || t->type_qualifiers[5] == tq_Array
2189 || t->basic_type == bt_Struct
2190 || t->basic_type == bt_Union
2191 || t->basic_type == bt_Enum
2192 || t->bitfield
2193 || t->num_dims > 0))
2194 state = hash_no;
2195
2196 /* See if we can hash this type, and save some space, but some types
2197 can't be hashed (because they contain arrays or continuations),
2198 and others can be put into the hash list, but cannot use existing
2199 types because other aux entries precede this one. */
2200
2201 if (state != hash_no)
2202 {
2203 register thash_t *hash_ptr;
2204 register symint_t hi;
2205
2206 hi = aux.isym & ((1 << HASHBITS) - 1);
2207 hi %= THASH_SIZE;
2208
2209 for (hash_ptr = hash_tbl[hi];
2210 hash_ptr != (thash_t *) 0;
2211 hash_ptr = hash_ptr->next)
2212 {
2213 if (aux.isym == hash_ptr->type.isym)
2214 break;
2215 }
2216
2217 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2218 return hash_ptr->indx;
2219
2220 if (hash_ptr == (thash_t *) 0)
2221 {
2222 hash_ptr = allocate_thash ();
2223 hash_ptr->next = hash_tbl[hi];
2224 hash_ptr->type = aux;
2225 hash_ptr->indx = vp->num_allocated;
2226 hash_tbl[hi] = hash_ptr;
2227 }
2228 }
2229
2230 /* Everything is set up, add the aux symbol. */
2231 if (vp->objects_last_page == vp->objects_per_page)
2232 add_varray_page (vp);
2233
2234 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2235 *aux_ptr = aux;
2236
2237 ret = vp->num_allocated++;
2238
2239 /* Add bitfield length if it exists.
2240
2241 NOTE: Mips documentation claims bitfield goes at the end of the
2242 AUX record, but the DECstation compiler emits it here.
2243 (This would only make a difference for enum bitfields.)
2244
2245 Also note: We use the last size given since gcc may emit 2
2246 for an enum bitfield. */
2247
2248 if (t->bitfield)
2249 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2250
2251
2252 /* Add tag information if needed. Structure, union, and enum
2253 references add 2 aux symbols: a [file index, symbol index]
2254 pointer to the structure type, and the current file index. */
2255
2256 if (t->basic_type == bt_Struct
2257 || t->basic_type == bt_Union
2258 || t->basic_type == bt_Enum)
2259 {
2260 register symint_t file_index = t->tag_ptr->ifd;
2261 register symint_t sym_index = t->tag_ptr->indx;
2262
2263 if (t->unknown_tag)
2264 {
2265 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2266 (void) add_aux_sym_symint ((symint_t)-1);
2267 }
2268 else if (sym_index != indexNil)
2269 {
2270 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2271 (void) add_aux_sym_symint (file_index);
2272 }
2273 else
2274 {
2275 register forward_t *forward_ref = allocate_forward ();
2276
2277 forward_ref->type_ptr = aux_ptr;
2278 forward_ref->next = t->tag_ptr->forward_ref;
2279 t->tag_ptr->forward_ref = forward_ref;
2280
2281 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2282 forward_ref->index_ptr
2283 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2284
2285 (void) add_aux_sym_symint (file_index);
2286 forward_ref->ifd_ptr
2287 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2288 }
2289 }
2290
2291 /* Add information about array bounds if they exist. */
2292 for (i = 0; i < t->num_dims; i++)
2293 {
2294 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2295 cur_file_ptr->int_type);
2296
2297 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2298 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2299 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2300 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2301 ? 0
2302 : (t->sizes[i] * 8) / t->dimensions[i]);
2303 };
2304
2305 /* NOTE: Mips documentation claims that the bitfield width goes here.
2306 But it needs to be emitted earlier. */
2307
2308 return ret;
2309 }
2310
2311 \f
2312 /* Add a tag to the tag table (unless it already exists). */
2313
2314 STATIC tag_t *
2315 get_tag (tag_start, tag_end_p1, indx, basic_type)
2316 const char *tag_start; /* 1st byte of tag name */
2317 const char *tag_end_p1; /* 1st byte after tag name */
2318 symint_t indx; /* index of tag start block */
2319 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2320 {
2321 shash_t *hash_ptr;
2322 tag_t *tag_ptr;
2323 hash_ptr = hash_string (tag_start,
2324 tag_end_p1 - tag_start,
2325 &tag_hash[0],
2326 (symint_t *) 0);
2327
2328 if (hash_ptr != (shash_t *) 0
2329 && hash_ptr->tag_ptr != (tag_t *) 0)
2330 {
2331 tag_ptr = hash_ptr->tag_ptr;
2332 if (indx != indexNil)
2333 {
2334 tag_ptr->basic_type = basic_type;
2335 tag_ptr->ifd = cur_file_ptr->file_index;
2336 tag_ptr->indx = indx;
2337 }
2338 return tag_ptr;
2339 }
2340
2341 (void) add_string (&tag_strings,
2342 &tag_hash[0],
2343 tag_start,
2344 tag_end_p1,
2345 &hash_ptr);
2346
2347 tag_ptr = allocate_tag ();
2348 tag_ptr->forward_ref = (forward_t *) 0;
2349 tag_ptr->hash_ptr = hash_ptr;
2350 tag_ptr->same_name = hash_ptr->tag_ptr;
2351 tag_ptr->basic_type = basic_type;
2352 tag_ptr->indx = indx;
2353 tag_ptr->ifd = (indx == indexNil
2354 ? (symint_t) -1 : cur_file_ptr->file_index);
2355 tag_ptr->same_block = cur_tag_head->first_tag;
2356
2357 cur_tag_head->first_tag = tag_ptr;
2358 hash_ptr->tag_ptr = tag_ptr;
2359
2360 return tag_ptr;
2361 }
2362
2363 \f
2364 /* Add an unknown {struct, union, enum} tag. */
2365
2366 STATIC void
2367 add_unknown_tag (ptag)
2368 tag_t *ptag; /* pointer to tag information */
2369 {
2370 shash_t *hash_ptr = ptag->hash_ptr;
2371 char *name_start = hash_ptr->string;
2372 char *name_end_p1 = name_start + hash_ptr->len;
2373 forward_t *f_next = ptag->forward_ref;
2374 forward_t *f_cur;
2375 int sym_index;
2376 int file_index = cur_file_ptr->file_index;
2377
2378 if (debug > 1)
2379 {
2380 const char *agg_type = "{unknown aggregate type}";
2381 switch (ptag->basic_type)
2382 {
2383 case bt_Struct: agg_type = "struct"; break;
2384 case bt_Union: agg_type = "union"; break;
2385 case bt_Enum: agg_type = "enum"; break;
2386 default: break;
2387 }
2388
2389 fprintf (stderr, "unknown %s %.*s found\n",
2390 agg_type, (int) hash_ptr->len, name_start);
2391 }
2392
2393 sym_index = add_local_symbol (name_start,
2394 name_end_p1,
2395 st_Block,
2396 sc_Info,
2397 (symint_t) 0,
2398 (symint_t) 0);
2399
2400 (void) add_local_symbol (name_start,
2401 name_end_p1,
2402 st_End,
2403 sc_Info,
2404 (symint_t) 0,
2405 (symint_t) 0);
2406
2407 while (f_next != (forward_t *) 0)
2408 {
2409 f_cur = f_next;
2410 f_next = f_next->next;
2411
2412 f_cur->ifd_ptr->isym = file_index;
2413 f_cur->index_ptr->rndx.index = sym_index;
2414
2415 free_forward (f_cur);
2416 }
2417
2418 return;
2419 }
2420
2421 \f
2422 /* Add a procedure to the current file's list of procedures, and record
2423 this is the current procedure. If the assembler created a PDR for
2424 this procedure, use that to initialize the current PDR. */
2425
2426 STATIC void
2427 add_procedure (func_start, func_end_p1)
2428 const char *func_start; /* 1st byte of func name */
2429 const char *func_end_p1; /* 1st byte after func name */
2430 {
2431 register PDR *new_proc_ptr;
2432 register efdr_t *file_ptr = cur_file_ptr;
2433 register varray_t *vp = &file_ptr->procs;
2434 register symint_t value = 0;
2435 register st_t proc_type = st_Proc;
2436 register shash_t *shash_ptr = hash_string (func_start,
2437 func_end_p1 - func_start,
2438 &orig_str_hash[0],
2439 (symint_t *) 0);
2440
2441 if (debug)
2442 fputc ('\n', stderr);
2443
2444 if (vp->objects_last_page == vp->objects_per_page)
2445 add_varray_page (vp);
2446
2447 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2448
2449 vp->num_allocated++;
2450
2451
2452 /* Did the assembler create this procedure? If so, get the PDR information. */
2453 cur_oproc_ptr = (PDR *) 0;
2454 if (shash_ptr != (shash_t *) 0)
2455 {
2456 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2457 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2458
2459 if (old_proc_ptr != (PDR *) 0
2460 && sym_ptr != (SYMR *) 0
2461 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2462 {
2463 cur_oproc_begin = sym_ptr;
2464 cur_oproc_end = shash_ptr->end_ptr;
2465 value = sym_ptr->value;
2466
2467 cur_oproc_ptr = old_proc_ptr;
2468 proc_type = (st_t)sym_ptr->st;
2469 *new_proc_ptr = *old_proc_ptr; /* initialize */
2470 }
2471 }
2472
2473 if (cur_oproc_ptr == (PDR *) 0)
2474 error ("Did not find a PDR block for %.*s",
2475 (int) (func_end_p1 - func_start), func_start);
2476
2477 /* Determine the start of symbols. */
2478 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2479
2480 /* Push the start of the function. */
2481 (void) add_local_symbol (func_start, func_end_p1,
2482 proc_type, sc_Text,
2483 value,
2484 (symint_t) 0);
2485 }
2486
2487 \f
2488 /* Add a new filename, and set up all of the file relative
2489 virtual arrays (strings, symbols, aux syms, etc.). Record
2490 where the current file structure lives. */
2491
2492 STATIC void
2493 add_file (file_start, file_end_p1)
2494 const char *file_start; /* first byte in string */
2495 const char *file_end_p1; /* first byte after string */
2496 {
2497 static char zero_bytes[2] = { '\0', '\0' };
2498
2499 register Ptrdiff_t len = file_end_p1 - file_start;
2500 register int first_ch = *file_start;
2501 register efdr_t *file_ptr;
2502
2503 if (debug)
2504 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2505
2506 /* See if the file has already been created. */
2507 for (file_ptr = first_file;
2508 file_ptr != (efdr_t *) 0;
2509 file_ptr = file_ptr->next_file)
2510 {
2511 if (first_ch == file_ptr->name[0]
2512 && file_ptr->name[len] == '\0'
2513 && memcmp (file_start, file_ptr->name, len) == 0)
2514 {
2515 cur_file_ptr = file_ptr;
2516 break;
2517 }
2518 }
2519
2520 /* If this is a new file, create it. */
2521 if (file_ptr == (efdr_t *) 0)
2522 {
2523 if (file_desc.objects_last_page == file_desc.objects_per_page)
2524 add_varray_page (&file_desc);
2525
2526 file_ptr = cur_file_ptr
2527 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2528 *file_ptr = init_file;
2529
2530 file_ptr->file_index = file_desc.num_allocated++;
2531
2532 /* Allocate the string hash table. */
2533 file_ptr->shash_head = (shash_t **) allocate_page ();
2534
2535 /* Make sure 0 byte in string table is null */
2536 add_string (&file_ptr->strings,
2537 &file_ptr->shash_head[0],
2538 &zero_bytes[0],
2539 &zero_bytes[0],
2540 (shash_t **) 0);
2541
2542 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2543 fatal ("Filename goes over one page boundary.");
2544
2545 /* Push the start of the filename. We assume that the filename
2546 will be stored at string offset 1. */
2547 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2548 (symint_t) 0, (symint_t) 0);
2549 file_ptr->fdr.rss = 1;
2550 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2551 file_ptr->name_len = file_end_p1 - file_start;
2552
2553 /* Update the linked list of file descriptors. */
2554 *last_file_ptr = file_ptr;
2555 last_file_ptr = &file_ptr->next_file;
2556
2557 /* Add void & int types to the file (void should be first to catch
2558 errant 0's within the index fields). */
2559 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2560 hash_yes,
2561 &cur_file_ptr->thash_head[0]);
2562
2563 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2564 hash_yes,
2565 &cur_file_ptr->thash_head[0]);
2566 }
2567 }
2568
2569 \f
2570 /* Add a stream of random bytes to a varray. */
2571
2572 STATIC void
2573 add_bytes (vp, input_ptr, nitems)
2574 varray_t *vp; /* virtual array to add too */
2575 char *input_ptr; /* start of the bytes */
2576 Size_t nitems; /* # items to move */
2577 {
2578 register Size_t move_items;
2579 register Size_t move_bytes;
2580 register char *ptr;
2581
2582 while (nitems > 0)
2583 {
2584 if (vp->objects_last_page >= vp->objects_per_page)
2585 add_varray_page (vp);
2586
2587 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2588 move_items = vp->objects_per_page - vp->objects_last_page;
2589 if (move_items > nitems)
2590 move_items = nitems;
2591
2592 move_bytes = move_items * vp->object_size;
2593 nitems -= move_items;
2594
2595 if (move_bytes >= 32)
2596 {
2597 (void) memcpy (ptr, input_ptr, move_bytes);
2598 input_ptr += move_bytes;
2599 }
2600 else
2601 {
2602 while (move_bytes-- > 0)
2603 *ptr++ = *input_ptr++;
2604 }
2605 }
2606 }
2607
2608 \f
2609 /* Convert storage class to string. */
2610
2611 STATIC const char *
2612 sc_to_string(storage_class)
2613 sc_t storage_class;
2614 {
2615 switch(storage_class)
2616 {
2617 case sc_Nil: return "Nil,";
2618 case sc_Text: return "Text,";
2619 case sc_Data: return "Data,";
2620 case sc_Bss: return "Bss,";
2621 case sc_Register: return "Register,";
2622 case sc_Abs: return "Abs,";
2623 case sc_Undefined: return "Undefined,";
2624 case sc_CdbLocal: return "CdbLocal,";
2625 case sc_Bits: return "Bits,";
2626 case sc_CdbSystem: return "CdbSystem,";
2627 case sc_RegImage: return "RegImage,";
2628 case sc_Info: return "Info,";
2629 case sc_UserStruct: return "UserStruct,";
2630 case sc_SData: return "SData,";
2631 case sc_SBss: return "SBss,";
2632 case sc_RData: return "RData,";
2633 case sc_Var: return "Var,";
2634 case sc_Common: return "Common,";
2635 case sc_SCommon: return "SCommon,";
2636 case sc_VarRegister: return "VarRegister,";
2637 case sc_Variant: return "Variant,";
2638 case sc_SUndefined: return "SUndefined,";
2639 case sc_Init: return "Init,";
2640 case sc_Max: return "Max,";
2641 }
2642
2643 return "???,";
2644 }
2645
2646 \f
2647 /* Convert symbol type to string. */
2648
2649 STATIC const char *
2650 st_to_string(symbol_type)
2651 st_t symbol_type;
2652 {
2653 switch(symbol_type)
2654 {
2655 case st_Nil: return "Nil,";
2656 case st_Global: return "Global,";
2657 case st_Static: return "Static,";
2658 case st_Param: return "Param,";
2659 case st_Local: return "Local,";
2660 case st_Label: return "Label,";
2661 case st_Proc: return "Proc,";
2662 case st_Block: return "Block,";
2663 case st_End: return "End,";
2664 case st_Member: return "Member,";
2665 case st_Typedef: return "Typedef,";
2666 case st_File: return "File,";
2667 case st_RegReloc: return "RegReloc,";
2668 case st_Forward: return "Forward,";
2669 case st_StaticProc: return "StaticProc,";
2670 case st_Constant: return "Constant,";
2671 case st_Str: return "String,";
2672 case st_Number: return "Number,";
2673 case st_Expr: return "Expr,";
2674 case st_Type: return "Type,";
2675 case st_Max: return "Max,";
2676 }
2677
2678 return "???,";
2679 }
2680
2681 \f
2682 /* Read a line from standard input, and return the start of the buffer
2683 (which is grows if the line is too big). We split lines at the
2684 semi-colon, and return each logical line independently. */
2685
2686 STATIC char *
2687 read_line ()
2688 {
2689 static int line_split_p = 0;
2690 register int string_p = 0;
2691 register int comment_p = 0;
2692 register int ch;
2693 register char *ptr;
2694
2695 if (cur_line_start == (char *) 0)
2696 { /* allocate initial page */
2697 cur_line_start = (char *) allocate_page ();
2698 cur_line_alloc = PAGE_SIZE;
2699 }
2700
2701 if (!line_split_p)
2702 line_number++;
2703
2704 line_split_p = 0;
2705 cur_line_nbytes = 0;
2706
2707 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2708 {
2709 if (++cur_line_nbytes >= cur_line_alloc-1)
2710 {
2711 register int num_pages = cur_line_alloc / PAGE_SIZE;
2712 register char *old_buffer = cur_line_start;
2713
2714 cur_line_alloc += PAGE_SIZE;
2715 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2716 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2717
2718 ptr = cur_line_start + cur_line_nbytes - 1;
2719 }
2720
2721 if (ch == '\n')
2722 {
2723 *ptr++ = '\n';
2724 *ptr = '\0';
2725 cur_line_ptr = cur_line_start;
2726 return cur_line_ptr;
2727 }
2728
2729 else if (ch == '\0')
2730 error ("Null character found in input");
2731
2732 else if (!comment_p)
2733 {
2734 if (ch == '"')
2735 string_p = !string_p;
2736
2737 else if (ch == '#')
2738 comment_p++;
2739
2740 else if (ch == ';' && !string_p)
2741 {
2742 line_split_p = 1;
2743 *ptr++ = '\n';
2744 *ptr = '\0';
2745 cur_line_ptr = cur_line_start;
2746 return cur_line_ptr;
2747 }
2748 }
2749 }
2750
2751 if (ferror (stdin))
2752 pfatal_with_name (input_name);
2753
2754 cur_line_ptr = (char *) 0;
2755 return (char *) 0;
2756 }
2757
2758 \f
2759 /* Parse #.begin directives which have a label as the first argument
2760 which gives the location of the start of the block. */
2761
2762 STATIC void
2763 parse_begin (start)
2764 const char *start; /* start of directive */
2765 {
2766 const char *end_p1; /* end of label */
2767 int ch;
2768 shash_t *hash_ptr; /* hash pointer to lookup label */
2769
2770 if (cur_file_ptr == (efdr_t *) 0)
2771 {
2772 error ("#.begin directive without a preceding .file directive");
2773 return;
2774 }
2775
2776 if (cur_proc_ptr == (PDR *) 0)
2777 {
2778 error ("#.begin directive without a preceding .ent directive");
2779 return;
2780 }
2781
2782 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2783 ;
2784
2785 hash_ptr = hash_string (start,
2786 end_p1 - start,
2787 &orig_str_hash[0],
2788 (symint_t *) 0);
2789
2790 if (hash_ptr == (shash_t *) 0)
2791 {
2792 error ("Label %.*s not found for #.begin",
2793 (int) (end_p1 - start), start);
2794 return;
2795 }
2796
2797 if (cur_oproc_begin == (SYMR *) 0)
2798 {
2799 error ("Procedure table %.*s not found for #.begin",
2800 (int) (end_p1 - start), start);
2801 return;
2802 }
2803
2804 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2805 st_Block, sc_Text,
2806 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2807 (symint_t) 0);
2808 }
2809
2810 \f
2811 /* Parse #.bend directives which have a label as the first argument
2812 which gives the location of the end of the block. */
2813
2814 STATIC void
2815 parse_bend (start)
2816 const char *start; /* start of directive */
2817 {
2818 const char *end_p1; /* end of label */
2819 int ch;
2820 shash_t *hash_ptr; /* hash pointer to lookup label */
2821
2822 if (cur_file_ptr == (efdr_t *) 0)
2823 {
2824 error ("#.begin directive without a preceding .file directive");
2825 return;
2826 }
2827
2828 if (cur_proc_ptr == (PDR *) 0)
2829 {
2830 error ("#.bend directive without a preceding .ent directive");
2831 return;
2832 }
2833
2834 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2835 ;
2836
2837 hash_ptr = hash_string (start,
2838 end_p1 - start,
2839 &orig_str_hash[0],
2840 (symint_t *) 0);
2841
2842 if (hash_ptr == (shash_t *) 0)
2843 {
2844 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2845 return;
2846 }
2847
2848 if (cur_oproc_begin == (SYMR *) 0)
2849 {
2850 error ("Procedure table %.*s not found for #.bend",
2851 (int) (end_p1 - start), start);
2852 return;
2853 }
2854
2855 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2856 st_End, sc_Text,
2857 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2858 (symint_t) 0);
2859 }
2860
2861 \f
2862 /* Parse #.def directives, which are contain standard COFF subdirectives
2863 to describe the debugging format. These subdirectives include:
2864
2865 .scl specify storage class
2866 .val specify a value
2867 .endef specify end of COFF directives
2868 .type specify the type
2869 .size specify the size of an array
2870 .dim specify an array dimension
2871 .tag specify a tag for a struct, union, or enum. */
2872
2873 STATIC void
2874 parse_def (name_start)
2875 const char *name_start; /* start of directive */
2876 {
2877 const char *dir_start; /* start of current directive*/
2878 const char *dir_end_p1; /* end+1 of current directive*/
2879 const char *arg_start; /* start of current argument */
2880 const char *arg_end_p1; /* end+1 of current argument */
2881 const char *name_end_p1; /* end+1 of label */
2882 const char *tag_start = 0; /* start of tag name */
2883 const char *tag_end_p1 = 0; /* end+1 of tag name */
2884 sc_t storage_class = sc_Nil;
2885 st_t symbol_type = st_Nil;
2886 type_info_t t;
2887 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2888 int is_function = 0; /* != 0 if function */
2889 symint_t value = 0;
2890 symint_t indx = cur_file_ptr->void_type;
2891 int error_line = 0;
2892 symint_t arg_number;
2893 symint_t temp_array[ N_TQ ];
2894 int arg_was_number;
2895 int ch, i;
2896 Ptrdiff_t len;
2897
2898 static int inside_enumeration = 0; /* is this an enumeration? */
2899
2900
2901 /* Initialize the type information. */
2902 t = type_info_init;
2903
2904
2905 /* Search for the end of the name being defined. */
2906 /* Allow spaces and such in names for G++ templates, which produce stabs
2907 that look like:
2908
2909 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2910
2911 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2912 ;
2913
2914 if (ch == '\0')
2915 {
2916 error_line = __LINE__;
2917 saber_stop ();
2918 goto bomb_out;
2919 }
2920
2921 /* Parse the remaining subdirectives now. */
2922 dir_start = name_end_p1+1;
2923 for (;;)
2924 {
2925 while ((ch = *dir_start) == ' ' || ch == '\t')
2926 ++dir_start;
2927
2928 if (ch != '.')
2929 {
2930 error_line = __LINE__;
2931 saber_stop ();
2932 goto bomb_out;
2933 }
2934
2935 /* Are we done? */
2936 if (dir_start[1] == 'e'
2937 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2938 break;
2939
2940 /* Pick up the subdirective now */
2941 for (dir_end_p1 = dir_start+1;
2942 (ch = *dir_end_p1) != ' ' && ch != '\t';
2943 dir_end_p1++)
2944 {
2945 if (ch == '\0' || ISSPACE (ch))
2946 {
2947 error_line = __LINE__;
2948 saber_stop ();
2949 goto bomb_out;
2950 }
2951 }
2952
2953 /* Pick up the subdirective argument now. */
2954 arg_was_number = arg_number = 0;
2955 arg_end_p1 = 0;
2956 arg_start = dir_end_p1+1;
2957 ch = *arg_start;
2958 while (ch == ' ' || ch == '\t')
2959 ch = *++arg_start;
2960
2961 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2962 {
2963 int ch2;
2964 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2965 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2966 arg_was_number++;
2967 }
2968
2969 else if (ch == '\0' || ISSPACE (ch))
2970 {
2971 error_line = __LINE__;
2972 saber_stop ();
2973 goto bomb_out;
2974 }
2975
2976 if (!arg_was_number)
2977 {
2978 /* Allow spaces and such in names for G++ templates. */
2979 for (arg_end_p1 = arg_start+1;
2980 (ch = *arg_end_p1) != ';' && ch != '\0';
2981 arg_end_p1++)
2982 ;
2983
2984 if (ch == '\0')
2985 {
2986 error_line = __LINE__;
2987 saber_stop ();
2988 goto bomb_out;
2989 }
2990 }
2991
2992 /* Classify the directives now. */
2993 len = dir_end_p1 - dir_start;
2994 switch (dir_start[1])
2995 {
2996 default:
2997 error_line = __LINE__;
2998 saber_stop ();
2999 goto bomb_out;
3000
3001 case 'd':
3002 if (len == sizeof (".dim")-1
3003 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3004 && arg_was_number)
3005 {
3006 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3007
3008 *t_ptr = arg_number;
3009 while (*arg_end_p1 == ',' && arg_was_number)
3010 {
3011 arg_start = arg_end_p1+1;
3012 ch = *arg_start;
3013 while (ch == ' ' || ch == '\t')
3014 ch = *++arg_start;
3015
3016 arg_was_number = 0;
3017 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3018 {
3019 int ch2;
3020 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3021 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3022 arg_was_number++;
3023
3024 if (t_ptr == &temp_array[0])
3025 {
3026 error_line = __LINE__;
3027 saber_stop ();
3028 goto bomb_out;
3029 }
3030
3031 *--t_ptr = arg_number;
3032 }
3033 }
3034
3035 /* Reverse order of dimensions. */
3036 while (t_ptr <= &temp_array[ N_TQ-1 ])
3037 {
3038 if (t.num_dims >= N_TQ-1)
3039 {
3040 error_line = __LINE__;
3041 saber_stop ();
3042 goto bomb_out;
3043 }
3044
3045 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3046 }
3047 break;
3048 }
3049 else
3050 {
3051 error_line = __LINE__;
3052 saber_stop ();
3053 goto bomb_out;
3054 }
3055
3056
3057 case 's':
3058 if (len == sizeof (".scl")-1
3059 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3060 && arg_was_number
3061 && arg_number < ((symint_t) C_MAX))
3062 {
3063 /* If the symbol is a static or external, we have
3064 already gotten the appropriate type and class, so
3065 make sure we don't override those values. This is
3066 needed because there are some type and classes that
3067 are not in COFF, such as short data, etc. */
3068 if (symbol_type == st_Nil)
3069 {
3070 symbol_type = map_coff_sym_type[arg_number];
3071 storage_class = map_coff_storage [arg_number];
3072 }
3073 break;
3074 }
3075
3076 else if (len == sizeof (".size")-1
3077 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3078 && arg_was_number)
3079 {
3080 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3081
3082 *t_ptr = arg_number;
3083 while (*arg_end_p1 == ',' && arg_was_number)
3084 {
3085 arg_start = arg_end_p1+1;
3086 ch = *arg_start;
3087 while (ch == ' ' || ch == '\t')
3088 ch = *++arg_start;
3089
3090 arg_was_number = 0;
3091 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3092 {
3093 int ch2;
3094 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3095 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3096 arg_was_number++;
3097
3098 if (t_ptr == &temp_array[0])
3099 {
3100 error_line = __LINE__;
3101 saber_stop ();
3102 goto bomb_out;
3103 }
3104
3105 *--t_ptr = arg_number;
3106 }
3107 }
3108
3109 /* Reverse order of sizes. */
3110 while (t_ptr <= &temp_array[ N_TQ-1 ])
3111 {
3112 if (t.num_sizes >= N_TQ-1)
3113 {
3114 error_line = __LINE__;
3115 saber_stop ();
3116 goto bomb_out;
3117 }
3118
3119 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3120 }
3121 break;
3122 }
3123
3124 else
3125 {
3126 error_line = __LINE__;
3127 saber_stop ();
3128 goto bomb_out;
3129 }
3130
3131
3132 case 't':
3133 if (len == sizeof (".type")-1
3134 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3135 && arg_was_number)
3136 {
3137 tq_t *tq_ptr = &t.type_qualifiers[0];
3138
3139 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3140 t.basic_type = map_coff_types [(int)t.orig_type];
3141 for (i = N_TQ-1; i >= 0; i--)
3142 {
3143 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3144 & N_TMASK);
3145
3146 if (dt != (int)DT_NON)
3147 *tq_ptr++ = map_coff_derived_type [dt];
3148 }
3149
3150 /* If this is a function, ignore it, so that we don't get
3151 two entries (one from the .ent, and one for the .def
3152 that precedes it). Save the type information so that
3153 the end block can properly add it after the begin block
3154 index. For MIPS knows what reason, we must strip off
3155 the function type at this point. */
3156 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3157 {
3158 is_function = 1;
3159 tq_ptr[-1] = tq_Nil;
3160 }
3161
3162 break;
3163 }
3164
3165 else if (len == sizeof (".tag")-1
3166 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3167 {
3168 tag_start = arg_start;
3169 tag_end_p1 = arg_end_p1;
3170 break;
3171 }
3172
3173 else
3174 {
3175 error_line = __LINE__;
3176 saber_stop ();
3177 goto bomb_out;
3178 }
3179
3180
3181 case 'v':
3182 if (len == sizeof (".val")-1
3183 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3184 {
3185 if (arg_was_number)
3186 value = arg_number;
3187
3188 /* If the value is not an integer value, it must be the
3189 name of a static or global item. Look up the name in
3190 the original symbol table to pick up the storage
3191 class, symbol type, etc. */
3192 else
3193 {
3194 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3195 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3196
3197 ext_hash_ptr = hash_string (arg_start,
3198 arg_end_p1 - arg_start,
3199 &ext_str_hash[0],
3200 (symint_t *) 0);
3201
3202 if (ext_hash_ptr != (shash_t *) 0
3203 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3204 eptr = ext_hash_ptr->esym_ptr;
3205
3206 orig_hash_ptr = hash_string (arg_start,
3207 arg_end_p1 - arg_start,
3208 &orig_str_hash[0],
3209 (symint_t *) 0);
3210
3211 if ((orig_hash_ptr == (shash_t *) 0
3212 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3213 && eptr == (EXTR *) 0)
3214 {
3215 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3216 (int) (arg_end_p1 - arg_start),
3217 arg_start);
3218 value = 0;
3219 }
3220 else
3221 {
3222 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3223 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3224 ? orig_hash_ptr->sym_ptr
3225 : &eptr->asym;
3226
3227 symbol_type = (st_t) ptr->st;
3228 storage_class = (sc_t) ptr->sc;
3229 value = ptr->value;
3230 }
3231 }
3232 break;
3233 }
3234 else
3235 {
3236 error_line = __LINE__;
3237 saber_stop ();
3238 goto bomb_out;
3239 }
3240 }
3241
3242 /* Set up to find next directive. */
3243 dir_start = arg_end_p1 + 1;
3244 }
3245
3246
3247 if (storage_class == sc_Bits)
3248 {
3249 t.bitfield = 1;
3250 t.extra_sizes = 1;
3251 }
3252 else
3253 t.extra_sizes = 0;
3254
3255 if (t.num_dims > 0)
3256 {
3257 int num_real_sizes = t.num_sizes - t.extra_sizes;
3258 int diff = t.num_dims - num_real_sizes;
3259 int i = t.num_dims - 1;
3260 int j;
3261
3262 if (num_real_sizes != 1 || diff < 0)
3263 {
3264 error_line = __LINE__;
3265 saber_stop ();
3266 goto bomb_out;
3267 }
3268
3269 /* If this is an array, make sure the same number of dimensions
3270 and sizes were passed, creating extra sizes for multiply
3271 dimensioned arrays if not passed. */
3272
3273 if (diff)
3274 {
3275 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3276 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3277
3278 t.num_sizes = i + 1;
3279 for ( i--; i >= 0; i-- )
3280 {
3281 if (t.dimensions[ i+1 ])
3282 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3283 else
3284 t.sizes[ i ] = t.sizes[ i+1 ];
3285 }
3286 }
3287 }
3288
3289 /* Except for enumeration members & begin/ending of scopes, put the
3290 type word in the aux. symbol table. */
3291
3292 if (symbol_type == st_Block || symbol_type == st_End)
3293 indx = 0;
3294
3295 else if (inside_enumeration)
3296 indx = cur_file_ptr->void_type;
3297
3298 else
3299 {
3300 if (t.basic_type == bt_Struct
3301 || t.basic_type == bt_Union
3302 || t.basic_type == bt_Enum)
3303 {
3304 if (tag_start == (char *) 0)
3305 {
3306 error ("No tag specified for %.*s",
3307 (int) (name_end_p1 - name_start),
3308 name_start);
3309 return;
3310 }
3311
3312 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3313 t.basic_type);
3314 }
3315
3316 if (is_function)
3317 {
3318 last_func_type_info = t;
3319 last_func_eptr = eptr;
3320 return;
3321 }
3322
3323 indx = add_aux_sym_tir (&t,
3324 hash_yes,
3325 &cur_file_ptr->thash_head[0]);
3326 }
3327
3328
3329 /* If this is an external or static symbol, update the appropriate
3330 external symbol. */
3331
3332 if (eptr != (EXTR *) 0
3333 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3334 {
3335 eptr->ifd = cur_file_ptr->file_index;
3336 eptr->asym.index = indx;
3337 }
3338
3339
3340 /* Do any last minute adjustments that are necessary. */
3341 switch (symbol_type)
3342 {
3343 default:
3344 break;
3345
3346
3347 /* For the beginning of structs, unions, and enumerations, the
3348 size info needs to be passed in the value field. */
3349
3350 case st_Block:
3351 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3352 {
3353 error_line = __LINE__;
3354 saber_stop ();
3355 goto bomb_out;
3356 }
3357
3358 else
3359 value = t.sizes[0];
3360
3361 inside_enumeration = (t.orig_type == T_ENUM);
3362 break;
3363
3364
3365 /* For the end of structs, unions, and enumerations, omit the
3366 name which is always ".eos". This needs to be done last, so
3367 that any error reporting above gives the correct name. */
3368
3369 case st_End:
3370 name_start = name_end_p1 = 0;
3371 value = inside_enumeration = 0;
3372 break;
3373
3374
3375 /* Members of structures and unions that aren't bitfields, need
3376 to adjust the value from a byte offset to a bit offset.
3377 Members of enumerations do not have the value adjusted, and
3378 can be distinguished by indx == indexNil. For enumerations,
3379 update the maximum enumeration value. */
3380
3381 case st_Member:
3382 if (!t.bitfield && !inside_enumeration)
3383 value *= 8;
3384
3385 break;
3386 }
3387
3388
3389 /* Add the symbol, except for global symbols outside of functions,
3390 for which the external symbol table is fine enough. */
3391
3392 if (eptr == (EXTR *) 0
3393 || eptr->asym.st == (int)st_Nil
3394 || cur_proc_ptr != (PDR *) 0)
3395 {
3396 symint_t isym = add_local_symbol (name_start, name_end_p1,
3397 symbol_type, storage_class,
3398 value,
3399 indx);
3400
3401 /* deal with struct, union, and enum tags. */
3402 if (symbol_type == st_Block)
3403 {
3404 /* Create or update the tag information. */
3405 tag_t *tag_ptr = get_tag (name_start,
3406 name_end_p1,
3407 isym,
3408 t.basic_type);
3409
3410 /* If there are any forward references, fill in the appropriate
3411 file and symbol indexes. */
3412
3413 symint_t file_index = cur_file_ptr->file_index;
3414 forward_t *f_next = tag_ptr->forward_ref;
3415 forward_t *f_cur;
3416
3417 while (f_next != (forward_t *) 0)
3418 {
3419 f_cur = f_next;
3420 f_next = f_next->next;
3421
3422 f_cur->ifd_ptr->isym = file_index;
3423 f_cur->index_ptr->rndx.index = isym;
3424
3425 free_forward (f_cur);
3426 }
3427
3428 tag_ptr->forward_ref = (forward_t *) 0;
3429 }
3430 }
3431
3432 /* Normal return */
3433 return;
3434
3435 /* Error return, issue message. */
3436 bomb_out:
3437 if (error_line)
3438 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3439 else
3440 error ("compiler error, badly formed #.def");
3441
3442 return;
3443 }
3444
3445 \f
3446 /* Parse .end directives. */
3447
3448 STATIC void
3449 parse_end (start)
3450 const char *start; /* start of directive */
3451 {
3452 register const char *start_func, *end_func_p1;
3453 register int ch;
3454 register symint_t value;
3455 register FDR *orig_fdr;
3456
3457 if (cur_file_ptr == (efdr_t *) 0)
3458 {
3459 error (".end directive without a preceding .file directive");
3460 return;
3461 }
3462
3463 if (cur_proc_ptr == (PDR *) 0)
3464 {
3465 error (".end directive without a preceding .ent directive");
3466 return;
3467 }
3468
3469 /* Get the function name, skipping whitespace. */
3470 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3471 ;
3472
3473 ch = *start_func;
3474 if (!IS_ASM_IDENT (ch))
3475 {
3476 error (".end directive has no name");
3477 return;
3478 }
3479
3480 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3481 ;
3482
3483
3484 /* Get the value field for creating the end from the original object
3485 file (which we find by locating the procedure start, and using the
3486 pointer to the end+1 block and backing up. The index points to a
3487 two word aux. symbol, whose first word is the index of the end
3488 symbol, and the second word is the type of the function return
3489 value. */
3490
3491 orig_fdr = cur_file_ptr->orig_fdr;
3492 value = 0;
3493 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3494 value = cur_oproc_end->value;
3495
3496 else
3497 error ("Cannot find .end block for %.*s",
3498 (int) (end_func_p1 - start_func), start_func);
3499
3500 (void) add_local_symbol (start_func, end_func_p1,
3501 st_End, sc_Text,
3502 value,
3503 (symint_t) 0);
3504
3505 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3506 }
3507
3508 \f
3509 /* Parse .ent directives. */
3510
3511 STATIC void
3512 parse_ent (start)
3513 const char *start; /* start of directive */
3514 {
3515 register const char *start_func, *end_func_p1;
3516 register int ch;
3517
3518 if (cur_file_ptr == (efdr_t *) 0)
3519 {
3520 error (".ent directive without a preceding .file directive");
3521 return;
3522 }
3523
3524 if (cur_proc_ptr != (PDR *) 0)
3525 {
3526 error ("second .ent directive found before .end directive");
3527 return;
3528 }
3529
3530 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3531 ;
3532
3533 ch = *start_func;
3534 if (!IS_ASM_IDENT (ch))
3535 {
3536 error (".ent directive has no name");
3537 return;
3538 }
3539
3540 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3541 ;
3542
3543 (void) add_procedure (start_func, end_func_p1);
3544 }
3545
3546 \f
3547 /* Parse .file directives. */
3548
3549 STATIC void
3550 parse_file (start)
3551 const char *start; /* start of directive */
3552 {
3553 char *p;
3554 register char *start_name, *end_name_p1;
3555
3556 (void) strtol (start, &p, 0);
3557 if (start == p
3558 || (start_name = strchr (p, '"')) == (char *) 0
3559 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3560 {
3561 error ("Invalid .file directive");
3562 return;
3563 }
3564
3565 if (cur_proc_ptr != (PDR *) 0)
3566 {
3567 error ("No way to handle .file within .ent/.end section");
3568 return;
3569 }
3570
3571 add_file (start_name, end_name_p1);
3572 }
3573
3574 \f
3575 /* Make sure the @stabs symbol is emitted. */
3576
3577 static void
3578 mark_stabs (start)
3579 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3580 {
3581 if (!stabs_seen)
3582 {
3583 /* Add a dummy @stabs symbol. */
3584 stabs_seen = 1;
3585 (void) add_local_symbol (stabs_symbol,
3586 stabs_symbol + sizeof (stabs_symbol),
3587 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3588
3589 }
3590 }
3591
3592 \f
3593 /* Parse .stabs directives.
3594
3595 .stabs directives have five fields:
3596 "string" a string, encoding the type information.
3597 code a numeric code, defined in <stab.h>
3598 0 a zero
3599 0 a zero or line number
3600 value a numeric value or an address.
3601
3602 If the value is relocatable, we transform this into:
3603 iss points as an index into string space
3604 value value from lookup of the name
3605 st st from lookup of the name
3606 sc sc from lookup of the name
3607 index code|CODE_MASK
3608
3609 If the value is not relocatable, we transform this into:
3610 iss points as an index into string space
3611 value value
3612 st st_Nil
3613 sc sc_Nil
3614 index code|CODE_MASK
3615
3616 .stabn directives have four fields (string is null):
3617 code a numeric code, defined in <stab.h>
3618 0 a zero
3619 0 a zero or a line number
3620 value a numeric value or an address. */
3621
3622 STATIC void
3623 parse_stabs_common (string_start, string_end, rest)
3624 const char *string_start; /* start of string or NULL */
3625 const char *string_end; /* end+1 of string or NULL */
3626 const char *rest; /* rest of the directive. */
3627 {
3628 efdr_t *save_file_ptr = cur_file_ptr;
3629 symint_t code;
3630 symint_t value;
3631 char *p;
3632 st_t st;
3633 sc_t sc;
3634 int ch;
3635
3636 if (stabs_seen == 0)
3637 mark_stabs ("");
3638
3639 /* Read code from stabs. */
3640 if (!ISDIGIT (*rest))
3641 {
3642 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3643 return;
3644 }
3645
3646 code = strtol (rest, &p, 0);
3647
3648 /* Line number stabs are handled differently, since they have two values,
3649 the line number and the address of the label. We use the index field
3650 (aka code) to hold the line number, and the value field to hold the
3651 address. The symbol type is st_Label, which should be different from
3652 the other stabs, so that gdb can recognize it. */
3653
3654 if (code == (int)N_SLINE)
3655 {
3656 SYMR *sym_ptr, dummy_symr;
3657 shash_t *shash_ptr;
3658
3659 /* Skip ,0, */
3660 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3661 {
3662 error ("Invalid line number .stabs/.stabn directive");
3663 return;
3664 }
3665
3666 code = strtol (p+3, &p, 0);
3667 ch = *++p;
3668 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3669 {
3670 error ("Invalid line number .stabs/.stabn directive");
3671 return;
3672 }
3673
3674 dummy_symr.index = code;
3675 if (dummy_symr.index != code)
3676 {
3677 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3678 code);
3679
3680 return;
3681 }
3682
3683 shash_ptr = hash_string (p,
3684 strlen (p) - 1,
3685 &orig_str_hash[0],
3686 (symint_t *) 0);
3687
3688 if (shash_ptr == (shash_t *) 0
3689 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3690 {
3691 error ("Invalid .stabs/.stabn directive, value not found");
3692 return;
3693 }
3694
3695 if ((st_t) sym_ptr->st != st_Label)
3696 {
3697 error ("Invalid line number .stabs/.stabn directive");
3698 return;
3699 }
3700
3701 st = st_Label;
3702 sc = (sc_t) sym_ptr->sc;
3703 value = sym_ptr->value;
3704 }
3705 else
3706 {
3707 /* Skip ,<num>,<num>, */
3708 if (*p++ != ',')
3709 goto failure;
3710 for (; ISDIGIT (*p); p++)
3711 ;
3712 if (*p++ != ',')
3713 goto failure;
3714 for (; ISDIGIT (*p); p++)
3715 ;
3716 if (*p++ != ',')
3717 goto failure;
3718 ch = *p;
3719 if (!IS_ASM_IDENT (ch) && ch != '-')
3720 {
3721 failure:
3722 error ("Invalid .stabs/.stabn directive, bad character");
3723 return;
3724 }
3725
3726 if (ISDIGIT (ch) || ch == '-')
3727 {
3728 st = st_Nil;
3729 sc = sc_Nil;
3730 value = strtol (p, &p, 0);
3731 if (*p != '\n')
3732 {
3733 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3734 return;
3735 }
3736 }
3737 else if (!IS_ASM_IDENT (ch))
3738 {
3739 error ("Invalid .stabs/.stabn directive, bad character");
3740 return;
3741 }
3742 else
3743 {
3744 SYMR *sym_ptr;
3745 shash_t *shash_ptr;
3746 const char *start, *end_p1;
3747
3748 start = p;
3749 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3750 {
3751 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3752 end_p1 = start + strlen(start) - 1;
3753 }
3754
3755 shash_ptr = hash_string (start,
3756 end_p1 - start,
3757 &orig_str_hash[0],
3758 (symint_t *) 0);
3759
3760 if (shash_ptr == (shash_t *) 0
3761 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3762 {
3763 shash_ptr = hash_string (start,
3764 end_p1 - start,
3765 &ext_str_hash[0],
3766 (symint_t *) 0);
3767
3768 if (shash_ptr == (shash_t *) 0
3769 || shash_ptr->esym_ptr == (EXTR *) 0)
3770 {
3771 error ("Invalid .stabs/.stabn directive, value not found");
3772 return;
3773 }
3774 else
3775 sym_ptr = &(shash_ptr->esym_ptr->asym);
3776 }
3777
3778 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3779 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3780 {
3781 sc = scNil;
3782 st = stNil;
3783 }
3784 else
3785 {
3786 sc = (sc_t) sym_ptr->sc;
3787 st = (st_t) sym_ptr->st;
3788 }
3789 value = sym_ptr->value;
3790
3791 ch = *end_p1++;
3792 if (ch != '\n')
3793 {
3794 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3795 || ((ch != '+') && (ch != '-')))
3796 {
3797 error ("Invalid .stabs/.stabn directive, badly formed value");
3798 return;
3799 }
3800 if (ch == '+')
3801 value += strtol (end_p1, &p, 0);
3802 else if (ch == '-')
3803 value -= strtol (end_p1, &p, 0);
3804
3805 if (*p != '\n')
3806 {
3807 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3808 return;
3809 }
3810 }
3811 }
3812 code = MIPS_MARK_STAB(code);
3813 }
3814
3815 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3816 /* Restore normal file type. */
3817 cur_file_ptr = save_file_ptr;
3818 }
3819
3820
3821 STATIC void
3822 parse_stabs (start)
3823 const char *start; /* start of directive */
3824 {
3825 const char *end = strchr (start+1, '"');
3826
3827 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3828 {
3829 error ("Invalid .stabs directive, no string");
3830 return;
3831 }
3832
3833 parse_stabs_common (start+1, end, end+2);
3834 }
3835
3836
3837 STATIC void
3838 parse_stabn (start)
3839 const char *start; /* start of directive */
3840 {
3841 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3842 }
3843
3844 \f
3845 /* Parse the input file, and write the lines to the output file
3846 if needed. */
3847
3848 STATIC void
3849 parse_input ()
3850 {
3851 register char *p;
3852 register Size_t i;
3853 register thead_t *ptag_head;
3854 register tag_t *ptag;
3855 register tag_t *ptag_next;
3856
3857 if (debug)
3858 fprintf (stderr, "\tinput\n");
3859
3860 /* Add a dummy scope block around the entire compilation unit for
3861 structures defined outside of blocks. */
3862 ptag_head = allocate_thead ();
3863 ptag_head->first_tag = 0;
3864 ptag_head->prev = cur_tag_head;
3865 cur_tag_head = ptag_head;
3866
3867 while ((p = read_line ()) != (char *) 0)
3868 {
3869 /* Skip leading blanks */
3870 while (ISSPACE ((unsigned char)*p))
3871 p++;
3872
3873 /* See if it's a directive we handle. If so, dispatch handler. */
3874 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3875 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3876 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3877 {
3878 p += pseudo_ops[i].len; /* skip to first argument */
3879 while (ISSPACE ((unsigned char)*p))
3880 p++;
3881
3882 (*pseudo_ops[i].func)( p );
3883 break;
3884 }
3885 }
3886
3887 /* Process any tags at global level. */
3888 ptag_head = cur_tag_head;
3889 cur_tag_head = ptag_head->prev;
3890
3891 for (ptag = ptag_head->first_tag;
3892 ptag != (tag_t *) 0;
3893 ptag = ptag_next)
3894 {
3895 if (ptag->forward_ref != (forward_t *) 0)
3896 add_unknown_tag (ptag);
3897
3898 ptag_next = ptag->same_block;
3899 ptag->hash_ptr->tag_ptr = ptag->same_name;
3900 free_tag (ptag);
3901 }
3902
3903 free_thead (ptag_head);
3904
3905 }
3906
3907 \f
3908 /* Update the global headers with the final offsets in preparation
3909 to write out the .T file. */
3910
3911 STATIC void
3912 update_headers ()
3913 {
3914 register symint_t i;
3915 register efdr_t *file_ptr;
3916
3917 /* Set up the symbolic header. */
3918 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3919 symbolic_header.magic = orig_sym_hdr.magic;
3920 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3921
3922 /* Set up global counts. */
3923 symbolic_header.issExtMax = ext_strings.num_allocated;
3924 symbolic_header.idnMax = dense_num.num_allocated;
3925 symbolic_header.ifdMax = file_desc.num_allocated;
3926 symbolic_header.iextMax = ext_symbols.num_allocated;
3927 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3928 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3929 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3930 symbolic_header.crfd = orig_sym_hdr.crfd;
3931
3932
3933 /* Loop through each file, figuring out how many local syms,
3934 line numbers, etc. there are. Also, put out end symbol
3935 for the filename. */
3936
3937 for (file_ptr = first_file;
3938 file_ptr != (efdr_t *) 0;
3939 file_ptr = file_ptr->next_file)
3940 {
3941 register SYMR *sym_start;
3942 register SYMR *sym;
3943 register SYMR *sym_end_p1;
3944 register FDR *fd_ptr = file_ptr->orig_fdr;
3945
3946 cur_file_ptr = file_ptr;
3947
3948 /* Copy st_Static symbols from the original local symbol table if
3949 they did not get added to the new local symbol table.
3950 This happens with stabs-in-ecoff or if the source file is
3951 compiled without debugging. */
3952 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3953 sym_end_p1 = sym_start + fd_ptr->csym;
3954 for (sym = sym_start; sym < sym_end_p1; sym++)
3955 {
3956 if ((st_t)sym->st == st_Static)
3957 {
3958 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3959 register Size_t len = strlen (str);
3960 register shash_t *hash_ptr;
3961
3962 /* Ignore internal labels. */
3963 if (str[0] == '$' && str[1] == 'L')
3964 continue;
3965 hash_ptr = hash_string (str,
3966 (Ptrdiff_t)len,
3967 &file_ptr->shash_head[0],
3968 (symint_t *) 0);
3969 if (hash_ptr == (shash_t *) 0)
3970 {
3971 (void) add_local_symbol (str, str + len,
3972 (st_t)sym->st, (sc_t)sym->sc,
3973 (symint_t)sym->value,
3974 (symint_t)indexNil);
3975 }
3976 }
3977 }
3978 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3979 st_End, sc_Text,
3980 (symint_t) 0,
3981 (symint_t) 0);
3982
3983 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3984 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3985 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3986
3987 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3988 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3989 symbolic_header.isymMax += file_ptr->fdr.csym;
3990
3991 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3992 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3993 symbolic_header.iauxMax += file_ptr->fdr.caux;
3994
3995 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3996 file_ptr->fdr.issBase = symbolic_header.issMax;
3997 symbolic_header.issMax += file_ptr->fdr.cbSs;
3998 }
3999
4000 #ifndef ALIGN_SYMTABLE_OFFSET
4001 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4002 #endif
4003
4004 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4005 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4006 if (i > 0)
4007 {
4008 symbolic_header.cbLineOffset = file_offset;
4009 file_offset += i;
4010 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4011 }
4012
4013 i = symbolic_header.ioptMax; /* optimization symbols */
4014 if (((long) i) > 0)
4015 {
4016 symbolic_header.cbOptOffset = file_offset;
4017 file_offset += i * sizeof (OPTR);
4018 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4019 }
4020
4021 i = symbolic_header.idnMax; /* dense numbers */
4022 if (i > 0)
4023 {
4024 symbolic_header.cbDnOffset = file_offset;
4025 file_offset += i * sizeof (DNR);
4026 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4027 }
4028
4029 i = symbolic_header.ipdMax; /* procedure tables */
4030 if (i > 0)
4031 {
4032 symbolic_header.cbPdOffset = file_offset;
4033 file_offset += i * sizeof (PDR);
4034 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4035 }
4036
4037 i = symbolic_header.isymMax; /* local symbols */
4038 if (i > 0)
4039 {
4040 symbolic_header.cbSymOffset = file_offset;
4041 file_offset += i * sizeof (SYMR);
4042 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4043 }
4044
4045 i = symbolic_header.iauxMax; /* aux syms. */
4046 if (i > 0)
4047 {
4048 symbolic_header.cbAuxOffset = file_offset;
4049 file_offset += i * sizeof (TIR);
4050 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4051 }
4052
4053 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4054 if (i > 0)
4055 {
4056 symbolic_header.cbSsOffset = file_offset;
4057 file_offset += i;
4058 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4059 }
4060
4061 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4062 if (i > 0)
4063 {
4064 symbolic_header.cbSsExtOffset = file_offset;
4065 file_offset += i;
4066 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4067 }
4068
4069 i = symbolic_header.ifdMax; /* file tables */
4070 if (i > 0)
4071 {
4072 symbolic_header.cbFdOffset = file_offset;
4073 file_offset += i * sizeof (FDR);
4074 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4075 }
4076
4077 i = symbolic_header.crfd; /* relative file descriptors */
4078 if (i > 0)
4079 {
4080 symbolic_header.cbRfdOffset = file_offset;
4081 file_offset += i * sizeof (symint_t);
4082 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4083 }
4084
4085 i = symbolic_header.iextMax; /* external symbols */
4086 if (i > 0)
4087 {
4088 symbolic_header.cbExtOffset = file_offset;
4089 file_offset += i * sizeof (EXTR);
4090 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4091 }
4092 }
4093
4094 \f
4095 /* Write out a varray at a given location. */
4096
4097 STATIC void
4098 write_varray (vp, offset, str)
4099 varray_t *vp; /* virtual array */
4100 off_t offset; /* offset to write varray to */
4101 const char *str; /* string to print out when tracing */
4102 {
4103 int num_write, sys_write;
4104 vlinks_t *ptr;
4105
4106 if (vp->num_allocated == 0)
4107 return;
4108
4109 if (debug)
4110 {
4111 fputs ("\twarray\tvp = ", stderr);
4112 fprintf (stderr, HOST_PTR_PRINTF, (PTR) vp);
4113 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4114 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4115 }
4116
4117 if (file_offset != offset
4118 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4119 pfatal_with_name (object_name);
4120
4121 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4122 {
4123 num_write = (ptr->next == (vlinks_t *) 0)
4124 ? vp->objects_last_page * vp->object_size
4125 : vp->objects_per_page * vp->object_size;
4126
4127 sys_write = fwrite ((PTR) ptr->datum, 1, num_write, object_stream);
4128 if (sys_write <= 0)
4129 pfatal_with_name (object_name);
4130
4131 else if (sys_write != num_write)
4132 fatal ("Wrote %d bytes to %s, system returned %d",
4133 num_write,
4134 object_name,
4135 sys_write);
4136
4137 file_offset += num_write;
4138 }
4139 }
4140
4141 \f
4142 /* Write out the symbol table in the object file. */
4143
4144 STATIC void
4145 write_object ()
4146 {
4147 int sys_write;
4148 efdr_t *file_ptr;
4149 off_t offset;
4150
4151 if (debug)
4152 {
4153 fputs ("\n\twrite\tvp = ", stderr);
4154 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &symbolic_header);
4155 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4156 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4157 }
4158
4159 sys_write = fwrite ((PTR) &symbolic_header,
4160 1,
4161 sizeof (symbolic_header),
4162 object_stream);
4163
4164 if (sys_write < 0)
4165 pfatal_with_name (object_name);
4166
4167 else if (sys_write != sizeof (symbolic_header))
4168 fatal ("Wrote %d bytes to %s, system returned %d",
4169 (int) sizeof (symbolic_header),
4170 object_name,
4171 sys_write);
4172
4173
4174 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4175
4176 if (symbolic_header.cbLine > 0) /* line numbers */
4177 {
4178 long sys_write;
4179
4180 if (file_offset != symbolic_header.cbLineOffset
4181 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4182 pfatal_with_name (object_name);
4183
4184 if (debug)
4185 {
4186 fputs ("\twrite\tvp = ", stderr);
4187 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_linenum);
4188 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4189 (long) symbolic_header.cbLineOffset,
4190 (long) symbolic_header.cbLine, "Line numbers");
4191 }
4192
4193 sys_write = fwrite ((PTR) orig_linenum,
4194 1,
4195 symbolic_header.cbLine,
4196 object_stream);
4197
4198 if (sys_write <= 0)
4199 pfatal_with_name (object_name);
4200
4201 else if (sys_write != symbolic_header.cbLine)
4202 fatal ("Wrote %ld bytes to %s, system returned %ld",
4203 (long) symbolic_header.cbLine,
4204 object_name,
4205 sys_write);
4206
4207 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4208 }
4209
4210 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4211 {
4212 long sys_write;
4213 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4214
4215 if (file_offset != symbolic_header.cbOptOffset
4216 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4217 pfatal_with_name (object_name);
4218
4219 if (debug)
4220 {
4221 fputs ("\twrite\tvp = ", stderr);
4222 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_opt_syms);
4223 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4224 (long) symbolic_header.cbOptOffset,
4225 num_write, "Optimizer symbols");
4226 }
4227
4228 sys_write = fwrite ((PTR) orig_opt_syms,
4229 1,
4230 num_write,
4231 object_stream);
4232
4233 if (sys_write <= 0)
4234 pfatal_with_name (object_name);
4235
4236 else if (sys_write != num_write)
4237 fatal ("Wrote %ld bytes to %s, system returned %ld",
4238 num_write,
4239 object_name,
4240 sys_write);
4241
4242 file_offset = symbolic_header.cbOptOffset + num_write;
4243 }
4244
4245 if (symbolic_header.idnMax > 0) /* dense numbers */
4246 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4247
4248 if (symbolic_header.ipdMax > 0) /* procedure tables */
4249 {
4250 offset = symbolic_header.cbPdOffset;
4251 for (file_ptr = first_file;
4252 file_ptr != (efdr_t *) 0;
4253 file_ptr = file_ptr->next_file)
4254 {
4255 write_varray (&file_ptr->procs, offset, "Procedure tables");
4256 offset = file_offset;
4257 }
4258 }
4259
4260 if (symbolic_header.isymMax > 0) /* local symbols */
4261 {
4262 offset = symbolic_header.cbSymOffset;
4263 for (file_ptr = first_file;
4264 file_ptr != (efdr_t *) 0;
4265 file_ptr = file_ptr->next_file)
4266 {
4267 write_varray (&file_ptr->symbols, offset, "Local symbols");
4268 offset = file_offset;
4269 }
4270 }
4271
4272 if (symbolic_header.iauxMax > 0) /* aux symbols */
4273 {
4274 offset = symbolic_header.cbAuxOffset;
4275 for (file_ptr = first_file;
4276 file_ptr != (efdr_t *) 0;
4277 file_ptr = file_ptr->next_file)
4278 {
4279 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4280 offset = file_offset;
4281 }
4282 }
4283
4284 if (symbolic_header.issMax > 0) /* local strings */
4285 {
4286 offset = symbolic_header.cbSsOffset;
4287 for (file_ptr = first_file;
4288 file_ptr != (efdr_t *) 0;
4289 file_ptr = file_ptr->next_file)
4290 {
4291 write_varray (&file_ptr->strings, offset, "Local strings");
4292 offset = file_offset;
4293 }
4294 }
4295
4296 if (symbolic_header.issExtMax > 0) /* external strings */
4297 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4298
4299 if (symbolic_header.ifdMax > 0) /* file tables */
4300 {
4301 offset = symbolic_header.cbFdOffset;
4302 if (file_offset != offset
4303 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4304 pfatal_with_name (object_name);
4305
4306 file_offset = offset;
4307 for (file_ptr = first_file;
4308 file_ptr != (efdr_t *) 0;
4309 file_ptr = file_ptr->next_file)
4310 {
4311 if (debug)
4312 {
4313 fputs ("\twrite\tvp = ", stderr);
4314 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &file_ptr->fdr);
4315 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4316 file_offset, (unsigned long) sizeof (FDR),
4317 "File header");
4318 }
4319
4320 sys_write = fwrite (&file_ptr->fdr,
4321 1,
4322 sizeof (FDR),
4323 object_stream);
4324
4325 if (sys_write < 0)
4326 pfatal_with_name (object_name);
4327
4328 else if (sys_write != sizeof (FDR))
4329 fatal ("Wrote %d bytes to %s, system returned %d",
4330 (int) sizeof (FDR),
4331 object_name,
4332 sys_write);
4333
4334 file_offset = offset += sizeof (FDR);
4335 }
4336 }
4337
4338 if (symbolic_header.crfd > 0) /* relative file descriptors */
4339 {
4340 long sys_write;
4341 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4342
4343 if (file_offset != symbolic_header.cbRfdOffset
4344 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4345 pfatal_with_name (object_name);
4346
4347 if (debug)
4348 {
4349 fputs ("\twrite\tvp = ", stderr);
4350 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_rfds);
4351 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4352 (long) symbolic_header.cbRfdOffset,
4353 num_write, "Relative file descriptors");
4354 }
4355
4356 sys_write = fwrite (orig_rfds,
4357 1,
4358 num_write,
4359 object_stream);
4360
4361 if (sys_write <= 0)
4362 pfatal_with_name (object_name);
4363
4364 else if (sys_write != (long)num_write)
4365 fatal ("Wrote %lu bytes to %s, system returned %ld",
4366 num_write,
4367 object_name,
4368 sys_write);
4369
4370 file_offset = symbolic_header.cbRfdOffset + num_write;
4371 }
4372
4373 if (symbolic_header.issExtMax > 0) /* external symbols */
4374 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4375
4376 if (fclose (object_stream) != 0)
4377 pfatal_with_name (object_name);
4378 }
4379
4380 \f
4381 /* Read some bytes at a specified location, and return a pointer. */
4382
4383 STATIC page_t *
4384 read_seek (size, offset, str)
4385 Size_t size; /* # bytes to read */
4386 off_t offset; /* offset to read at */
4387 const char *str; /* name for tracing */
4388 {
4389 page_t *ptr;
4390 long sys_read = 0;
4391
4392 if (size == 0) /* nothing to read */
4393 return (page_t *) 0;
4394
4395 if (debug)
4396 fprintf (stderr,
4397 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4398 (unsigned long) size, (unsigned long) offset, file_offset, str);
4399
4400 #ifndef MALLOC_CHECK
4401 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4402 #else
4403 ptr = (page_t *) xcalloc (1, size);
4404 #endif
4405
4406 /* If we need to seek, and the distance is nearby, just do some reads,
4407 to speed things up. */
4408 if (file_offset != offset)
4409 {
4410 symint_t difference = offset - file_offset;
4411
4412 if (difference < 8)
4413 {
4414 char small_buffer[8];
4415
4416 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4417 if (sys_read <= 0)
4418 pfatal_with_name (obj_in_name);
4419
4420 if ((symint_t)sys_read != difference)
4421 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4422 (unsigned long) size,
4423 obj_in_name,
4424 sys_read);
4425 }
4426 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4427 pfatal_with_name (obj_in_name);
4428 }
4429
4430 sys_read = fread ((PTR) ptr, 1, size, obj_in_stream);
4431 if (sys_read <= 0)
4432 pfatal_with_name (obj_in_name);
4433
4434 if (sys_read != (long) size)
4435 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4436 (unsigned long) size,
4437 obj_in_name,
4438 sys_read);
4439
4440 file_offset = offset + size;
4441
4442 if (file_offset > max_file_offset)
4443 max_file_offset = file_offset;
4444
4445 return ptr;
4446 }
4447
4448 \f
4449 /* Read the existing object file (and copy to the output object file
4450 if it is different from the input object file), and remove the old
4451 symbol table. */
4452
4453 STATIC void
4454 copy_object ()
4455 {
4456 char buffer[ PAGE_SIZE ];
4457 register int sys_read;
4458 register int remaining;
4459 register int num_write;
4460 register int sys_write;
4461 register int fd, es;
4462 register int delete_ifd = 0;
4463 register int *remap_file_number;
4464 struct stat stat_buf;
4465
4466 if (debug)
4467 fprintf (stderr, "\tcopy\n");
4468
4469 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4470 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4471 pfatal_with_name (obj_in_name);
4472
4473 sys_read = fread ((PTR) &orig_file_header,
4474 1,
4475 sizeof (struct filehdr),
4476 obj_in_stream);
4477
4478 if (sys_read < 0)
4479 pfatal_with_name (obj_in_name);
4480
4481 else if (sys_read == 0 && feof (obj_in_stream))
4482 return; /* create a .T file sans file header */
4483
4484 else if (sys_read < (int) sizeof (struct filehdr))
4485 fatal ("Wanted to read %d bytes from %s, system returned %d",
4486 (int) sizeof (struct filehdr),
4487 obj_in_name,
4488 sys_read);
4489
4490
4491 if (orig_file_header.f_nsyms != sizeof (HDRR))
4492 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4493 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4494
4495
4496 /* Read in the current symbolic header. */
4497 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4498 pfatal_with_name (input_name);
4499
4500 sys_read = fread ((PTR) &orig_sym_hdr,
4501 1,
4502 sizeof (orig_sym_hdr),
4503 obj_in_stream);
4504
4505 if (sys_read < 0)
4506 pfatal_with_name (object_name);
4507
4508 else if (sys_read < (int) sizeof (struct filehdr))
4509 fatal ("Wanted to read %d bytes from %s, system returned %d",
4510 (int) sizeof (struct filehdr),
4511 obj_in_name,
4512 sys_read);
4513
4514
4515 /* Read in each of the sections if they exist in the object file.
4516 We read things in in the order the mips assembler creates the
4517 sections, so in theory no extra seeks are done.
4518
4519 For simplicity sake, round each read up to a page boundary,
4520 we may want to revisit this later.... */
4521
4522 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4523
4524 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4525 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4526 orig_sym_hdr.cbLineOffset,
4527 "Line numbers");
4528
4529 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4530 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4531 orig_sym_hdr.cbPdOffset,
4532 "Procedure tables");
4533
4534 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4535 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4536 orig_sym_hdr.cbSymOffset,
4537 "Local symbols");
4538
4539 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4540 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4541 orig_sym_hdr.cbAuxOffset,
4542 "Aux. symbols");
4543
4544 if (orig_sym_hdr.issMax > 0) /* local strings */
4545 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4546 orig_sym_hdr.cbSsOffset,
4547 "Local strings");
4548
4549 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4550 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4551 orig_sym_hdr.cbSsExtOffset,
4552 "External strings");
4553
4554 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4555 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4556 orig_sym_hdr.cbFdOffset,
4557 "File tables");
4558
4559 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4560 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4561 orig_sym_hdr.cbRfdOffset,
4562 "Relative file descriptors");
4563
4564 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4565 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4566 orig_sym_hdr.cbExtOffset,
4567 "External symbols");
4568
4569 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4570 {
4571 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4572 orig_sym_hdr.cbDnOffset,
4573 "Dense numbers");
4574
4575 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4576 }
4577
4578 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4579 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4580 orig_sym_hdr.cbOptOffset,
4581 "Optimizer symbols");
4582
4583
4584
4585 /* Abort if the symbol table is not last. */
4586 if (max_file_offset != stat_buf.st_size)
4587 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4588 max_file_offset,
4589 (long) stat_buf.st_size);
4590
4591
4592 /* If the first original file descriptor is a dummy which the assembler
4593 put out, but there are no symbols in it, skip it now. */
4594 if (orig_sym_hdr.ifdMax > 1
4595 && orig_files->csym == 2
4596 && orig_files->caux == 0)
4597 {
4598 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4599 char *suffix = strrchr (filename, '.');
4600
4601 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4602 delete_ifd = 1;
4603 }
4604
4605
4606 /* Create array to map original file numbers to the new file numbers
4607 (in case there are duplicate filenames, we collapse them into one
4608 file section, the MIPS assembler may or may not collapse them). */
4609
4610 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4611
4612 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4613 {
4614 register FDR *fd_ptr = ORIG_FILES (fd);
4615 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4616
4617 /* file support itself. */
4618 add_file (filename, filename + strlen (filename));
4619 remap_file_number[fd] = cur_file_ptr->file_index;
4620 }
4621
4622 if (delete_ifd > 0) /* just in case */
4623 remap_file_number[0] = remap_file_number[1];
4624
4625
4626 /* Loop, adding each of the external symbols. These must be in
4627 order or otherwise we would have to change the relocation
4628 entries. We don't just call add_bytes, because we need to have
4629 the names put into the external hash table. We set the type to
4630 'void' for now, and parse_def will fill in the correct type if it
4631 is in the symbol table. We must add the external symbols before
4632 the locals, since the locals do lookups against the externals. */
4633
4634 if (debug)
4635 fprintf (stderr, "\tehash\n");
4636
4637 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4638 {
4639 register EXTR *eptr = orig_ext_syms + es;
4640 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4641 register unsigned ifd = eptr->ifd;
4642
4643 (void) add_ext_symbol (ename,
4644 ename + strlen (ename),
4645 (st_t) eptr->asym.st,
4646 (sc_t) eptr->asym.sc,
4647 eptr->asym.value,
4648 (eptr->asym.index == indexNil
4649 ? (symint_t) indexNil : 0),
4650 ((long) ifd < orig_sym_hdr.ifdMax
4651 ? remap_file_number[ifd] : (int) ifd));
4652 }
4653
4654
4655 /* For each of the files in the object file, copy the symbols, and such
4656 into the varrays for the new object file. */
4657
4658 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4659 {
4660 register FDR *fd_ptr = ORIG_FILES (fd);
4661 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4662 register SYMR *sym_start;
4663 register SYMR *sym;
4664 register SYMR *sym_end_p1;
4665 register PDR *proc_start;
4666 register PDR *proc;
4667 register PDR *proc_end_p1;
4668
4669 /* file support itself. */
4670 add_file (filename, filename + strlen (filename));
4671 cur_file_ptr->orig_fdr = fd_ptr;
4672
4673 /* Copy stuff that's just passed through (such as line #'s) */
4674 cur_file_ptr->fdr.adr = fd_ptr->adr;
4675 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4676 cur_file_ptr->fdr.cline = fd_ptr->cline;
4677 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4678 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4679 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4680 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4681 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4682 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4683 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4684
4685 if (debug)
4686 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4687
4688 /* For each of the static and global symbols defined, add them
4689 to the hash table of original symbols, so we can look up
4690 their values. */
4691
4692 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4693 sym_end_p1 = sym_start + fd_ptr->csym;
4694 for (sym = sym_start; sym < sym_end_p1; sym++)
4695 {
4696 switch ((st_t) sym->st)
4697 {
4698 default:
4699 break;
4700
4701 case st_Global:
4702 case st_Static:
4703 case st_Label:
4704 case st_Proc:
4705 case st_StaticProc:
4706 {
4707 auto symint_t hash_index;
4708 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4709 register Size_t len = strlen (str);
4710 register shash_t *shash_ptr = hash_string (str,
4711 (Ptrdiff_t)len,
4712 &orig_str_hash[0],
4713 &hash_index);
4714
4715 if (shash_ptr != (shash_t *) 0)
4716 error ("internal error, %s is already in original symbol table", str);
4717
4718 else
4719 {
4720 shash_ptr = allocate_shash ();
4721 shash_ptr->next = orig_str_hash[hash_index];
4722 orig_str_hash[hash_index] = shash_ptr;
4723
4724 shash_ptr->len = len;
4725 shash_ptr->indx = indexNil;
4726 shash_ptr->string = str;
4727 shash_ptr->sym_ptr = sym;
4728 }
4729 }
4730 break;
4731
4732 case st_End:
4733 if ((sc_t) sym->sc == sc_Text)
4734 {
4735 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4736
4737 if (*str != '\0')
4738 {
4739 register Size_t len = strlen (str);
4740 register shash_t *shash_ptr = hash_string (str,
4741 (Ptrdiff_t)len,
4742 &orig_str_hash[0],
4743 (symint_t *) 0);
4744
4745 if (shash_ptr != (shash_t *) 0)
4746 shash_ptr->end_ptr = sym;
4747 }
4748 }
4749 break;
4750
4751 }
4752 }
4753
4754 if (debug)
4755 {
4756 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4757 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4758 }
4759
4760 /* Go through each of the procedures in this file, and add the
4761 procedure pointer to the hash entry for the given name. */
4762
4763 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4764 proc_end_p1 = proc_start + fd_ptr->cpd;
4765 for (proc = proc_start; proc < proc_end_p1; proc++)
4766 {
4767 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4768 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4769 register Size_t len = strlen (str);
4770 register shash_t *shash_ptr = hash_string (str,
4771 (Ptrdiff_t)len,
4772 &orig_str_hash[0],
4773 (symint_t *) 0);
4774
4775 if (shash_ptr == (shash_t *) 0)
4776 error ("internal error, function %s is not in original symbol table", str);
4777
4778 else
4779 shash_ptr->proc_ptr = proc;
4780 }
4781
4782 if (debug)
4783 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4784
4785 }
4786 cur_file_ptr = first_file;
4787
4788
4789 /* Copy all of the object file up to the symbol table. Originally
4790 we were going to use ftruncate, but that doesn't seem to work
4791 on Ultrix 3.1.... */
4792
4793 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4794 pfatal_with_name (obj_in_name);
4795
4796 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4797 pfatal_with_name (object_name);
4798
4799 for (remaining = orig_file_header.f_symptr;
4800 remaining > 0;
4801 remaining -= num_write)
4802 {
4803 num_write
4804 = (remaining <= (int) sizeof (buffer))
4805 ? remaining : (int) sizeof (buffer);
4806 sys_read = fread ((PTR) buffer, 1, num_write, obj_in_stream);
4807 if (sys_read <= 0)
4808 pfatal_with_name (obj_in_name);
4809
4810 else if (sys_read != num_write)
4811 fatal ("Wanted to read %d bytes from %s, system returned %d",
4812 num_write,
4813 obj_in_name,
4814 sys_read);
4815
4816 sys_write = fwrite (buffer, 1, num_write, object_stream);
4817 if (sys_write <= 0)
4818 pfatal_with_name (object_name);
4819
4820 else if (sys_write != num_write)
4821 fatal ("Wrote %d bytes to %s, system returned %d",
4822 num_write,
4823 object_name,
4824 sys_write);
4825 }
4826 }
4827
4828 \f
4829 /* Ye olde main program. */
4830
4831 extern int main PARAMS ((int, char **));
4832
4833 int
4834 main (argc, argv)
4835 int argc;
4836 char **argv;
4837 {
4838 int iflag = 0;
4839 char *p = strrchr (argv[0], '/');
4840 char *num_end;
4841 int option;
4842 int i;
4843
4844 progname = (p != 0) ? p+1 : argv[0];
4845
4846 (void) signal (SIGSEGV, catch_signal);
4847 (void) signal (SIGBUS, catch_signal);
4848 (void) signal (SIGABRT, catch_signal);
4849
4850 #if !defined(__SABER__) && !defined(lint)
4851 if (sizeof (efdr_t) > PAGE_USIZE)
4852 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4853 (int) sizeof (efdr_t),
4854 (int) PAGE_USIZE);
4855
4856 if (sizeof (page_t) != PAGE_USIZE)
4857 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4858 (int) sizeof (page_t),
4859 (int) PAGE_USIZE);
4860
4861 #endif
4862
4863 alloc_counts[ alloc_type_none ].alloc_name = "none";
4864 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4865 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4866 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4867 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4868 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4869 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4870 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4871 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4872
4873 int_type_info = type_info_init;
4874 int_type_info.basic_type = bt_Int;
4875
4876 void_type_info = type_info_init;
4877 void_type_info.basic_type = bt_Void;
4878
4879 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4880 switch (option)
4881 {
4882 default:
4883 had_errors++;
4884 break;
4885
4886 case 'd':
4887 debug = strtol (optarg, &num_end, 0);
4888 if ((unsigned)debug > 4 || num_end == optarg)
4889 had_errors++;
4890
4891 break;
4892
4893 case 'I':
4894 if (rename_output || obj_in_name != (char *) 0)
4895 had_errors++;
4896 else
4897 rename_output = 1;
4898
4899 /* fall through to 'i' case. */
4900
4901 case 'i':
4902 if (obj_in_name == (char *) 0)
4903 {
4904 obj_in_name = optarg;
4905 iflag++;
4906 }
4907 else
4908 had_errors++;
4909 break;
4910
4911 case 'o':
4912 if (object_name == (char *) 0)
4913 object_name = optarg;
4914 else
4915 had_errors++;
4916 break;
4917
4918 case 'v':
4919 version++;
4920 break;
4921 }
4922
4923 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4924 obj_in_name = argv[--argc];
4925
4926 if (object_name == (char *) 0 && optind <= argc - 2)
4927 object_name = argv[--argc];
4928
4929 /* If there is an output name, but no input name use
4930 the same file for both, deleting the name between
4931 opening it for input and opening it for output. */
4932 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4933 {
4934 obj_in_name = object_name;
4935 delete_input = 1;
4936 }
4937
4938 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4939 {
4940 fprintf (stderr, _("Calling Sequence:\n"));
4941 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4942 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4943 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4944 fprintf (stderr, "\n");
4945 fprintf (stderr, _("Debug levels are:\n"));
4946 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4947 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4948 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4949 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4950 return 1;
4951 }
4952
4953
4954 if (version)
4955 {
4956 fprintf (stderr, _("mips-tfile version %s"), version_string);
4957 #ifdef TARGET_VERSION
4958 TARGET_VERSION;
4959 #endif
4960 fputc ('\n', stderr);
4961 }
4962
4963 if (obj_in_name == (char *) 0)
4964 obj_in_name = object_name;
4965
4966 if (rename_output && rename (object_name, obj_in_name) != 0)
4967 {
4968 char *buffer = (char *) allocate_multiple_pages (4);
4969 int len;
4970 int len2;
4971 int in_fd;
4972 int out_fd;
4973
4974 /* Rename failed, copy input file */
4975 in_fd = open (object_name, O_RDONLY, 0666);
4976 if (in_fd < 0)
4977 pfatal_with_name (object_name);
4978
4979 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4980 if (out_fd < 0)
4981 pfatal_with_name (obj_in_name);
4982
4983 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4984 {
4985 len2 = write (out_fd, buffer, len);
4986 if (len2 < 0)
4987 pfatal_with_name (object_name);
4988
4989 if (len != len2)
4990 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4991 }
4992
4993 free_multiple_pages ((page_t *)buffer, 4);
4994
4995 if (len < 0)
4996 pfatal_with_name (object_name);
4997
4998 if (close (in_fd) < 0)
4999 pfatal_with_name (object_name);
5000
5001 if (close (out_fd) < 0)
5002 pfatal_with_name (obj_in_name);
5003 }
5004
5005 /* Must open input before output, since the output may be the same file, and
5006 we need to get the input handle before truncating it. */
5007 obj_in_stream = fopen (obj_in_name, "r");
5008 if (obj_in_stream == (FILE *) 0)
5009 pfatal_with_name (obj_in_name);
5010
5011 if (delete_input && unlink (obj_in_name) != 0)
5012 pfatal_with_name (obj_in_name);
5013
5014 object_stream = fopen (object_name, "w");
5015 if (object_stream == (FILE *) 0)
5016 pfatal_with_name (object_name);
5017
5018 if (strcmp (argv[optind], "-") != 0)
5019 {
5020 input_name = argv[optind];
5021 if (freopen (argv[optind], "r", stdin) != stdin)
5022 pfatal_with_name (argv[optind]);
5023 }
5024
5025 copy_object (); /* scan & copy object file */
5026 parse_input (); /* scan all of input */
5027
5028 update_headers (); /* write out tfile */
5029 write_object ();
5030
5031 if (debug)
5032 {
5033 fprintf (stderr, "\n\tAllocation summary:\n\n");
5034 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5035 if (alloc_counts[i].total_alloc)
5036 {
5037 fprintf (stderr,
5038 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5039 alloc_counts[i].alloc_name,
5040 alloc_counts[i].total_alloc,
5041 alloc_counts[i].total_free,
5042 alloc_counts[i].total_pages);
5043 }
5044 }
5045
5046 return (had_errors) ? 1 : 0;
5047 }
5048
5049 \f
5050 /* Catch a signal and exit without dumping core. */
5051
5052 STATIC void
5053 catch_signal (signum)
5054 int signum;
5055 {
5056 (void) signal (signum, SIG_DFL); /* just in case... */
5057 fatal ("%s", strsignal(signum));
5058 }
5059
5060 /* Print a fatal error message. NAME is the text.
5061 Also include a system error message based on `errno'. */
5062
5063 void
5064 pfatal_with_name (msg)
5065 const char *msg;
5066 {
5067 int save_errno = errno; /* just in case.... */
5068 if (line_number > 0)
5069 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5070 else
5071 fprintf (stderr, "%s:", progname);
5072
5073 errno = save_errno;
5074 if (errno == 0)
5075 fprintf (stderr, "[errno = 0] %s\n", msg);
5076 else
5077 perror (msg);
5078
5079 exit (1);
5080 }
5081
5082 \f
5083 /* Procedure to abort with an out of bounds error message. It has
5084 type int, so it can be used with an ?: expression within the
5085 ORIG_xxx macros, but the function never returns. */
5086
5087 static int
5088 out_of_bounds (indx, max, str, prog_line)
5089 symint_t indx; /* index that is out of bounds */
5090 symint_t max; /* maximum index */
5091 const char *str; /* string to print out */
5092 int prog_line; /* line number within mips-tfile.c */
5093 {
5094 if (indx < max) /* just in case */
5095 return 0;
5096
5097 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5098 progname, input_name, line_number, indx, str, max, prog_line);
5099
5100 exit (1);
5101 return 0; /* turn off warning messages */
5102 }
5103
5104 \f
5105 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5106 like sbrk's behind its back (or sbrk isn't available). If we use
5107 sbrk, we assume it gives us zeroed pages. */
5108
5109 #ifndef MALLOC_CHECK
5110 #ifdef USE_MALLOC
5111
5112 STATIC page_t *
5113 allocate_cluster (npages)
5114 Size_t npages;
5115 {
5116 register page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5117
5118 if (debug > 3)
5119 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5120
5121 return value;
5122 }
5123
5124 #else /* USE_MALLOC */
5125
5126 STATIC page_t *
5127 allocate_cluster (npages)
5128 Size_t npages;
5129 {
5130 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5131 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5132
5133 if (offset != 0) /* align to a page boundary */
5134 {
5135 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5136 pfatal_with_name ("allocate_cluster");
5137
5138 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5139 }
5140
5141 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5142 pfatal_with_name ("allocate_cluster");
5143
5144 if (debug > 3)
5145 {
5146 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5147 (unsigned long) npages);
5148 fprintf (stderr, HOST_PTR_PRINTF, (PTR) ptr);
5149 fputs ("\n", stderr);
5150 }
5151
5152 return ptr;
5153 }
5154
5155 #endif /* USE_MALLOC */
5156
5157
5158 static page_t *cluster_ptr = NULL;
5159 static unsigned pages_left = 0;
5160
5161 #endif /* MALLOC_CHECK */
5162
5163
5164 /* Allocate some pages (which is initialized to 0). */
5165
5166 STATIC page_t *
5167 allocate_multiple_pages (npages)
5168 Size_t npages;
5169 {
5170 #ifndef MALLOC_CHECK
5171 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5172 {
5173 pages_left = MAX_CLUSTER_PAGES;
5174 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5175 }
5176
5177 if (npages <= pages_left)
5178 {
5179 page_t *ptr = cluster_ptr;
5180 cluster_ptr += npages;
5181 pages_left -= npages;
5182 return ptr;
5183 }
5184
5185 return allocate_cluster (npages);
5186
5187 #else /* MALLOC_CHECK */
5188 return (page_t *) xcalloc (npages, PAGE_SIZE);
5189
5190 #endif /* MALLOC_CHECK */
5191 }
5192
5193
5194 /* Release some pages. */
5195
5196 STATIC void
5197 free_multiple_pages (page_ptr, npages)
5198 page_t *page_ptr;
5199 Size_t npages;
5200 {
5201 #ifndef MALLOC_CHECK
5202 if (pages_left == 0)
5203 {
5204 cluster_ptr = page_ptr;
5205 pages_left = npages;
5206 }
5207
5208 else if ((page_ptr + npages) == cluster_ptr)
5209 {
5210 cluster_ptr -= npages;
5211 pages_left += npages;
5212 }
5213
5214 /* otherwise the page is not freed. If more than call is
5215 done, we probably should worry about it, but at present,
5216 the free pages is done right after an allocate. */
5217
5218 #else /* MALLOC_CHECK */
5219 free ((char *) page_ptr);
5220
5221 #endif /* MALLOC_CHECK */
5222 }
5223
5224
5225 /* Allocate one page (which is initialized to 0). */
5226
5227 STATIC page_t *
5228 allocate_page ()
5229 {
5230 #ifndef MALLOC_CHECK
5231 if (pages_left == 0)
5232 {
5233 pages_left = MAX_CLUSTER_PAGES;
5234 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5235 }
5236
5237 pages_left--;
5238 return cluster_ptr++;
5239
5240 #else /* MALLOC_CHECK */
5241 return (page_t *) xcalloc (1, PAGE_SIZE);
5242
5243 #endif /* MALLOC_CHECK */
5244 }
5245
5246 \f
5247 /* Allocate scoping information. */
5248
5249 STATIC scope_t *
5250 allocate_scope ()
5251 {
5252 register scope_t *ptr;
5253 static scope_t initial_scope;
5254
5255 #ifndef MALLOC_CHECK
5256 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5257 if (ptr != (scope_t *) 0)
5258 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5259
5260 else
5261 {
5262 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5263 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5264
5265 if (unallocated == 0)
5266 {
5267 unallocated = PAGE_SIZE / sizeof (scope_t);
5268 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5269 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5270 }
5271
5272 ptr = &cur_page->scope[ --unallocated ];
5273 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5274 }
5275
5276 #else
5277 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5278
5279 #endif
5280
5281 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5282 *ptr = initial_scope;
5283 return ptr;
5284 }
5285
5286 /* Free scoping information. */
5287
5288 STATIC void
5289 free_scope (ptr)
5290 scope_t *ptr;
5291 {
5292 alloc_counts[ (int)alloc_type_scope ].total_free++;
5293
5294 #ifndef MALLOC_CHECK
5295 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5296 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5297
5298 #else
5299 free ((PTR) ptr);
5300 #endif
5301
5302 }
5303
5304 \f
5305 /* Allocate links for pages in a virtual array. */
5306
5307 STATIC vlinks_t *
5308 allocate_vlinks ()
5309 {
5310 register vlinks_t *ptr;
5311 static vlinks_t initial_vlinks;
5312
5313 #ifndef MALLOC_CHECK
5314 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5315 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5316
5317 if (unallocated == 0)
5318 {
5319 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5320 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5321 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5322 }
5323
5324 ptr = &cur_page->vlinks[ --unallocated ];
5325 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5326
5327 #else
5328 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5329
5330 #endif
5331
5332 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5333 *ptr = initial_vlinks;
5334 return ptr;
5335 }
5336
5337 \f
5338 /* Allocate string hash buckets. */
5339
5340 STATIC shash_t *
5341 allocate_shash ()
5342 {
5343 register shash_t *ptr;
5344 static shash_t initial_shash;
5345
5346 #ifndef MALLOC_CHECK
5347 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5348 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5349
5350 if (unallocated == 0)
5351 {
5352 unallocated = PAGE_SIZE / sizeof (shash_t);
5353 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5354 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5355 }
5356
5357 ptr = &cur_page->shash[ --unallocated ];
5358 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5359
5360 #else
5361 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5362
5363 #endif
5364
5365 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5366 *ptr = initial_shash;
5367 return ptr;
5368 }
5369
5370 \f
5371 /* Allocate type hash buckets. */
5372
5373 STATIC thash_t *
5374 allocate_thash ()
5375 {
5376 register thash_t *ptr;
5377 static thash_t initial_thash;
5378
5379 #ifndef MALLOC_CHECK
5380 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5381 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5382
5383 if (unallocated == 0)
5384 {
5385 unallocated = PAGE_SIZE / sizeof (thash_t);
5386 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5387 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5388 }
5389
5390 ptr = &cur_page->thash[ --unallocated ];
5391 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5392
5393 #else
5394 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5395
5396 #endif
5397
5398 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5399 *ptr = initial_thash;
5400 return ptr;
5401 }
5402
5403 \f
5404 /* Allocate structure, union, or enum tag information. */
5405
5406 STATIC tag_t *
5407 allocate_tag ()
5408 {
5409 register tag_t *ptr;
5410 static tag_t initial_tag;
5411
5412 #ifndef MALLOC_CHECK
5413 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5414 if (ptr != (tag_t *) 0)
5415 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5416
5417 else
5418 {
5419 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5420 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5421
5422 if (unallocated == 0)
5423 {
5424 unallocated = PAGE_SIZE / sizeof (tag_t);
5425 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5426 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5427 }
5428
5429 ptr = &cur_page->tag[ --unallocated ];
5430 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5431 }
5432
5433 #else
5434 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5435
5436 #endif
5437
5438 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5439 *ptr = initial_tag;
5440 return ptr;
5441 }
5442
5443 /* Free scoping information. */
5444
5445 STATIC void
5446 free_tag (ptr)
5447 tag_t *ptr;
5448 {
5449 alloc_counts[ (int)alloc_type_tag ].total_free++;
5450
5451 #ifndef MALLOC_CHECK
5452 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5453 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5454
5455 #else
5456 free ((PTR) ptr);
5457 #endif
5458
5459 }
5460
5461 \f
5462 /* Allocate forward reference to a yet unknown tag. */
5463
5464 STATIC forward_t *
5465 allocate_forward ()
5466 {
5467 register forward_t *ptr;
5468 static forward_t initial_forward;
5469
5470 #ifndef MALLOC_CHECK
5471 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5472 if (ptr != (forward_t *) 0)
5473 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5474
5475 else
5476 {
5477 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5478 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5479
5480 if (unallocated == 0)
5481 {
5482 unallocated = PAGE_SIZE / sizeof (forward_t);
5483 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5484 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5485 }
5486
5487 ptr = &cur_page->forward[ --unallocated ];
5488 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5489 }
5490
5491 #else
5492 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5493
5494 #endif
5495
5496 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5497 *ptr = initial_forward;
5498 return ptr;
5499 }
5500
5501 /* Free scoping information. */
5502
5503 STATIC void
5504 free_forward (ptr)
5505 forward_t *ptr;
5506 {
5507 alloc_counts[ (int)alloc_type_forward ].total_free++;
5508
5509 #ifndef MALLOC_CHECK
5510 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5511 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5512
5513 #else
5514 free ((PTR) ptr);
5515 #endif
5516
5517 }
5518
5519 \f
5520 /* Allocate head of type hash list. */
5521
5522 STATIC thead_t *
5523 allocate_thead ()
5524 {
5525 register thead_t *ptr;
5526 static thead_t initial_thead;
5527
5528 #ifndef MALLOC_CHECK
5529 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5530 if (ptr != (thead_t *) 0)
5531 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5532
5533 else
5534 {
5535 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5536 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5537
5538 if (unallocated == 0)
5539 {
5540 unallocated = PAGE_SIZE / sizeof (thead_t);
5541 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5542 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5543 }
5544
5545 ptr = &cur_page->thead[ --unallocated ];
5546 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5547 }
5548
5549 #else
5550 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5551
5552 #endif
5553
5554 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5555 *ptr = initial_thead;
5556 return ptr;
5557 }
5558
5559 /* Free scoping information. */
5560
5561 STATIC void
5562 free_thead (ptr)
5563 thead_t *ptr;
5564 {
5565 alloc_counts[ (int)alloc_type_thead ].total_free++;
5566
5567 #ifndef MALLOC_CHECK
5568 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5569 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5570
5571 #else
5572 free ((PTR) ptr);
5573 #endif
5574
5575 }
5576
5577 #endif /* MIPS_DEBUGGING_INFO */
5578
5579 \f
5580 /* Output an error message and exit */
5581
5582 /*VARARGS*/
5583 void
5584 fatal VPARAMS ((const char *format, ...))
5585 {
5586 #ifndef ANSI_PROTOTYPES
5587 const char *format;
5588 #endif
5589 va_list ap;
5590
5591 VA_START (ap, format);
5592
5593 #ifndef ANSI_PROTOTYPES
5594 format = va_arg (ap, const char *);
5595 #endif
5596
5597 if (line_number > 0)
5598 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5599 else
5600 fprintf (stderr, "%s:", progname);
5601
5602 vfprintf (stderr, format, ap);
5603 va_end (ap);
5604 fprintf (stderr, "\n");
5605 if (line_number > 0)
5606 fprintf (stderr, "line:\t%s\n", cur_line_start);
5607
5608 saber_stop ();
5609 exit (1);
5610 }
5611
5612 /*VARARGS*/
5613 void
5614 error VPARAMS ((const char *format, ...))
5615 {
5616 #ifndef ANSI_PROTOTYPES
5617 char *format;
5618 #endif
5619 va_list ap;
5620
5621 VA_START (ap, format);
5622
5623 #ifndef ANSI_PROTOTYPES
5624 format = va_arg (ap, char *);
5625 #endif
5626
5627 if (line_number > 0)
5628 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5629 else
5630 fprintf (stderr, "%s:", progname);
5631
5632 vfprintf (stderr, format, ap);
5633 fprintf (stderr, "\n");
5634 if (line_number > 0)
5635 fprintf (stderr, "line:\t%s\n", cur_line_start);
5636
5637 had_errors++;
5638 va_end (ap);
5639
5640 saber_stop ();
5641 }
5642
5643 /* More 'friendly' abort that prints the line and file.
5644 config.h can #define abort fancy_abort if you like that sort of thing. */
5645
5646 void
5647 fancy_abort ()
5648 {
5649 fatal ("Internal abort.");
5650 }
5651 \f
5652
5653 /* When `malloc.c' is compiled with `rcheck' defined,
5654 it calls this function to report clobberage. */
5655
5656 void
5657 botch (s)
5658 const char *s;
5659 {
5660 fatal ("%s", s);
5661 }
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