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BSD 4_4_Lite2 development
[unix-history] / usr / src / contrib / gcc-2.3.3 / mips-tfile.c
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C		 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 Contributed by: Michael Meissner, meissner@osf.org
6 Copyright (C) 1991 Free Software Foundation, Inc.
7
8This file is part of GNU CC.
9
10GNU CC is free software; you can redistribute it and/or modify
11it under the terms of the GNU General Public License as published by
12the Free Software Foundation; either version 2, or (at your option)
13any later version.
14
15GNU CC is distributed in the hope that it will be useful,
16but WITHOUT ANY WARRANTY; without even the implied warranty of
17MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18GNU General Public License for more details.
19
20You should have received a copy of the GNU General Public License
21along with GNU CC; see the file COPYING. If not, write to
22the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24\f
25/* Here is a brief description of the MIPS ECOFF symbol table. The
26 MIPS symbol table has the following pieces:
27
28 Symbolic Header
29 |
30 +-- Auxiliary Symbols
31 |
32 +-- Dense number table
33 |
34 +-- Optimizer Symbols
35 |
36 +-- External Strings
37 |
38 +-- External Symbols
39 |
40 +-- Relative file descriptors
41 |
42 +-- File table
43 |
44 +-- Procedure table
45 |
46 +-- Line number table
47 |
48 +-- Local Strings
49 |
50 +-- Local Symbols
51
52 The symbolic header points to each of the other tables, and also
53 contains the number of entries. It also contains a magic number
54 and MIPS compiler version number, such as 2.0.
55
56 The auxiliary table is a series of 32 bit integers, that are
57 referenced as needed from the local symbol table. Unlike standard
58 COFF, the aux. information does not follow the symbol that uses
59 it, but rather is a separate table. In theory, this would allow
60 the MIPS compilers to collapse duplicate aux. entries, but I've not
61 noticed this happening with the 1.31 compiler suite. The different
62 types of aux. entries are:
63
64 1) dnLow: Low bound on array dimension.
65
66 2) dnHigh: High bound on array dimension.
67
68 3) isym: Index to the local symbol which is the start of the
69 function for the end of function first aux. entry.
70
71 4) width: Width of structures and bitfields.
72
73 5) count: Count of ranges for variant part.
74
75 6) rndx: A relative index into the symbol table. The relative
76 index field has two parts: rfd which is a pointer into the
77 relative file index table or ST_RFDESCAPE which says the next
78 aux. entry is the file number, and index: which is the pointer
79 into the local symbol within a given file table. This is for
80 things like references to types defined in another file.
81
82 7) Type information: This is like the COFF type bits, except it
83 is 32 bits instead of 16; they still have room to add new
84 basic types; and they can handle more than 6 levels of array,
85 pointer, function, etc. Each type information field contains
86 the following structure members:
87
88 a) fBitfield: a bit that says this is a bitfield, and the
89 size in bits follows as the next aux. entry.
90
91 b) continued: a bit that says the next aux. entry is a
92 continuation of the current type information (in case
93 there are more than 6 levels of array/ptr/function).
94
95 c) bt: an integer containing the base type before adding
96 array, pointer, function, etc. qualifiers. The
97 current base types that I have documentation for are:
98
99 btNil -- undefined
100 btAdr -- address - integer same size as ptr
101 btChar -- character
102 btUChar -- unsigned character
103 btShort -- short
104 btUShort -- unsigned short
105 btInt -- int
106 btUInt -- unsigned int
107 btLong -- long
108 btULong -- unsigned long
109 btFloat -- float (real)
110 btDouble -- Double (real)
111 btStruct -- Structure (Record)
112 btUnion -- Union (variant)
113 btEnum -- Enumerated
114 btTypedef -- defined via a typedef isymRef
115 btRange -- subrange of int
116 btSet -- pascal sets
117 btComplex -- fortran complex
118 btDComplex -- fortran double complex
119 btIndirect -- forward or unnamed typedef
120 btFixedDec -- Fixed Decimal
121 btFloatDec -- Float Decimal
122 btString -- Varying Length Character String
123 btBit -- Aligned Bit String
124 btPicture -- Picture
125 btVoid -- Void (MIPS cc revision >= 2.00)
126
127 d) tq0 - tq5: type qualifier fields as needed. The
128 current type qualifier fields I have documentation for
129 are:
130
131 tqNil -- no more qualifiers
132 tqPtr -- pointer
133 tqProc -- procedure
134 tqArray -- array
135 tqFar -- 8086 far pointers
136 tqVol -- volatile
137
138
139 The dense number table is used in the front ends, and disappears by
140 the time the .o is created.
141
142 With the 1.31 compiler suite, the optimization symbols don't seem
143 to be used as far as I can tell.
144
145 The linker is the first entity that creates the relative file
146 descriptor table, and I believe it is used so that the individual
147 file table pointers don't have to be rewritten when the objects are
148 merged together into the program file.
149
150 Unlike COFF, the basic symbol & string tables are split into
151 external and local symbols/strings. The relocation information
152 only goes off of the external symbol table, and the debug
153 information only goes off of the internal symbol table. The
154 external symbols can have links to an appropriate file index and
155 symbol within the file to give it the appropriate type information.
156 Because of this, the external symbols are actually larger than the
157 internal symbols (to contain the link information), and contain the
158 local symbol structure as a member, though this member is not the
159 first member of the external symbol structure (!). I suspect this
160 split is to make strip easier to deal with.
161
162 Each file table has offsets for where the line numbers, local
163 strings, local symbols, and procedure table starts from within the
164 global tables, and the indexs are reset to 0 for each of those
165 tables for the file.
166
167 The procedure table contains the binary equivalents of the .ent
168 (start of the function address), .frame (what register is the
169 virtual frame pointer, constant offset from the register to obtain
170 the VFP, and what register holds the return address), .mask/.fmask
171 (bitmask of saved registers, and where the first register is stored
172 relative to the VFP) assembler directives. It also contains the
173 low and high bounds of the line numbers if debugging is turned on.
174
175 The line number table is a compressed form of the normal COFF line
176 table. Each line number entry is either 1 or 3 bytes long, and
177 contains a signed delta from the previous line, and an unsigned
178 count of the number of instructions this statement takes.
179
180 The local symbol table contains the following fields:
181
182 1) iss: index to the local string table giving the name of the
183 symbol.
184
185 2) value: value of the symbol (address, register number, etc.).
186
187 3) st: symbol type. The current symbol types are:
188
189 stNil -- Nuthin' special
190 stGlobal -- external symbol
191 stStatic -- static
192 stParam -- procedure argument
193 stLocal -- local variable
194 stLabel -- label
195 stProc -- External Procedure
196 stBlock -- beginning of block
197 stEnd -- end (of anything)
198 stMember -- member (of anything)
199 stTypedef -- type definition
200 stFile -- file name
201 stRegReloc -- register relocation
202 stForward -- forwarding address
203 stStaticProc -- Static procedure
204 stConstant -- const
205
206 4) sc: storage class. The current storage classes are:
207
208 scText -- text symbol
209 scData -- initialized data symbol
210 scBss -- un-initialized data symbol
211 scRegister -- value of symbol is register number
212 scAbs -- value of symbol is absolute
213 scUndefined -- who knows?
214 scCdbLocal -- variable's value is IN se->va.??
215 scBits -- this is a bit field
216 scCdbSystem -- value is IN debugger's address space
217 scRegImage -- register value saved on stack
218 scInfo -- symbol contains debugger information
219 scUserStruct -- addr in struct user for current process
220 scSData -- load time only small data
221 scSBss -- load time only small common
222 scRData -- load time only read only data
223 scVar -- Var parameter (fortranpascal)
224 scCommon -- common variable
225 scSCommon -- small common
226 scVarRegister -- Var parameter in a register
227 scVariant -- Variant record
228 scSUndefined -- small undefined(external) data
229 scInit -- .init section symbol
230
231 5) index: pointer to a local symbol or aux. entry.
232
233
234
235 For the following program:
236
237 #include <stdio.h>
238
239 main(){
240 printf("Hello World!\n");
241 return 0;
242 }
243
244 Mips-tdump produces the following information:
245
246 Global file header:
247 magic number 0x162
248 # sections 2
249 timestamp 645311799, Wed Jun 13 17:16:39 1990
250 symbolic header offset 284
251 symbolic header size 96
252 optional header 56
253 flags 0x0
254
255 Symbolic header, magic number = 0x7009, vstamp = 1.31:
256
257 Info Offset Number Bytes
258 ==== ====== ====== =====
259
260 Line numbers 380 4 4 [13]
261 Dense numbers 0 0 0
262 Procedures Tables 384 1 52
263 Local Symbols 436 16 192
264 Optimization Symbols 0 0 0
265 Auxiliary Symbols 628 39 156
266 Local Strings 784 80 80
267 External Strings 864 144 144
268 File Tables 1008 2 144
269 Relative Files 0 0 0
270 External Symbols 1152 20 320
271
272 File #0, "hello2.c"
273
274 Name index = 1 Readin = No
275 Merge = No Endian = LITTLE
276 Debug level = G2 Language = C
277 Adr = 0x00000000
278
279 Info Start Number Size Offset
280 ==== ===== ====== ==== ======
281 Local strings 0 15 15 784
282 Local symbols 0 6 72 436
283 Line numbers 0 13 13 380
284 Optimization symbols 0 0 0 0
285 Procedures 0 1 52 384
286 Auxiliary symbols 0 14 56 628
287 Relative Files 0 0 0 0
288
289 There are 6 local symbols, starting at 436
290
291 Symbol# 0: "hello2.c"
292 End+1 symbol = 6
293 String index = 1
294 Storage class = Text Index = 6
295 Symbol type = File Value = 0
296
297 Symbol# 1: "main"
298 End+1 symbol = 5
299 Type = int
300 String index = 10
301 Storage class = Text Index = 12
302 Symbol type = Proc Value = 0
303
304 Symbol# 2: ""
305 End+1 symbol = 4
306 String index = 0
307 Storage class = Text Index = 4
308 Symbol type = Block Value = 8
309
310 Symbol# 3: ""
311 First symbol = 2
312 String index = 0
313 Storage class = Text Index = 2
314 Symbol type = End Value = 28
315
316 Symbol# 4: "main"
317 First symbol = 1
318 String index = 10
319 Storage class = Text Index = 1
320 Symbol type = End Value = 52
321
322 Symbol# 5: "hello2.c"
323 First symbol = 0
324 String index = 1
325 Storage class = Text Index = 0
326 Symbol type = End Value = 0
327
328 There are 14 auxiliary table entries, starting at 628.
329
330 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344
345 There are 1 procedure descriptor entries, starting at 0.
346
347 Procedure descriptor 0:
348 Name index = 10 Name = "main"
349 .mask 0x80000000,-4 .fmask 0x00000000,0
350 .frame $29,24,$31
351 Opt. start = -1 Symbols start = 1
352 First line # = 3 Last line # = 6
353 Line Offset = 0 Address = 0x00000000
354
355 There are 4 bytes holding line numbers, starting at 380.
356 Line 3, delta 0, count 2
357 Line 4, delta 1, count 3
358 Line 5, delta 1, count 2
359 Line 6, delta 1, count 6
360
361 File #1, "/usr/include/stdio.h"
362
363 Name index = 1 Readin = No
364 Merge = Yes Endian = LITTLE
365 Debug level = G2 Language = C
366 Adr = 0x00000000
367
368 Info Start Number Size Offset
369 ==== ===== ====== ==== ======
370 Local strings 15 65 65 799
371 Local symbols 6 10 120 508
372 Line numbers 0 0 0 380
373 Optimization symbols 0 0 0 0
374 Procedures 1 0 0 436
375 Auxiliary symbols 14 25 100 684
376 Relative Files 0 0 0 0
377
378 There are 10 local symbols, starting at 442
379
380 Symbol# 0: "/usr/include/stdio.h"
381 End+1 symbol = 10
382 String index = 1
383 Storage class = Text Index = 10
384 Symbol type = File Value = 0
385
386 Symbol# 1: "_iobuf"
387 End+1 symbol = 9
388 String index = 22
389 Storage class = Info Index = 9
390 Symbol type = Block Value = 20
391
392 Symbol# 2: "_cnt"
393 Type = int
394 String index = 29
395 Storage class = Info Index = 4
396 Symbol type = Member Value = 0
397
398 Symbol# 3: "_ptr"
399 Type = ptr to char
400 String index = 34
401 Storage class = Info Index = 15
402 Symbol type = Member Value = 32
403
404 Symbol# 4: "_base"
405 Type = ptr to char
406 String index = 39
407 Storage class = Info Index = 16
408 Symbol type = Member Value = 64
409
410 Symbol# 5: "_bufsiz"
411 Type = int
412 String index = 45
413 Storage class = Info Index = 4
414 Symbol type = Member Value = 96
415
416 Symbol# 6: "_flag"
417 Type = short
418 String index = 53
419 Storage class = Info Index = 3
420 Symbol type = Member Value = 128
421
422 Symbol# 7: "_file"
423 Type = char
424 String index = 59
425 Storage class = Info Index = 2
426 Symbol type = Member Value = 144
427
428 Symbol# 8: ""
429 First symbol = 1
430 String index = 0
431 Storage class = Info Index = 1
432 Symbol type = End Value = 0
433
434 Symbol# 9: "/usr/include/stdio.h"
435 First symbol = 0
436 String index = 1
437 Storage class = Text Index = 0
438 Symbol type = End Value = 0
439
440 There are 25 auxiliary table entries, starting at 642.
441
442 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467
468 There are 0 procedure descriptor entries, starting at 1.
469
470 There are 20 external symbols, starting at 1152
471
472 Symbol# 0: "_iob"
473 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474 String index = 0 Ifd = 1
475 Storage class = Nil Index = 17
476 Symbol type = Global Value = 60
477
478 Symbol# 1: "fopen"
479 String index = 5 Ifd = 1
480 Storage class = Nil Index = 1048575
481 Symbol type = Proc Value = 0
482
483 Symbol# 2: "fdopen"
484 String index = 11 Ifd = 1
485 Storage class = Nil Index = 1048575
486 Symbol type = Proc Value = 0
487
488 Symbol# 3: "freopen"
489 String index = 18 Ifd = 1
490 Storage class = Nil Index = 1048575
491 Symbol type = Proc Value = 0
492
493 Symbol# 4: "popen"
494 String index = 26 Ifd = 1
495 Storage class = Nil Index = 1048575
496 Symbol type = Proc Value = 0
497
498 Symbol# 5: "tmpfile"
499 String index = 32 Ifd = 1
500 Storage class = Nil Index = 1048575
501 Symbol type = Proc Value = 0
502
503 Symbol# 6: "ftell"
504 String index = 40 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 7: "rewind"
509 String index = 46 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 8: "setbuf"
514 String index = 53 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 9: "setbuffer"
519 String index = 60 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 10: "setlinebuf"
524 String index = 70 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 11: "fgets"
529 String index = 81 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 12: "gets"
534 String index = 87 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 13: "ctermid"
539 String index = 92 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 14: "cuserid"
544 String index = 100 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 15: "tempnam"
549 String index = 108 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 16: "tmpnam"
554 String index = 116 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 17: "sprintf"
559 String index = 123 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 18: "main"
564 Type = int
565 String index = 131 Ifd = 0
566 Storage class = Text Index = 1
567 Symbol type = Proc Value = 0
568
569 Symbol# 19: "printf"
570 String index = 136 Ifd = 0
571 Storage class = Undefined Index = 1048575
572 Symbol type = Proc Value = 0
573
574 The following auxiliary table entries were unused:
575
576 #0 0 0x00000000 void
577 #2 8 0x00000008 char
578 #3 16 0x00000010 short
579 #4 24 0x00000018 int
580 #5 32 0x00000020 long
581 #6 40 0x00000028 float
582 #7 44 0x0000002c double
583 #8 12 0x0000000c unsigned char
584 #9 20 0x00000014 unsigned short
585 #10 28 0x0000001c unsigned int
586 #11 36 0x00000024 unsigned long
587 #14 0 0x00000000 void
588 #15 24 0x00000018 int
589 #19 32 0x00000020 long
590 #20 40 0x00000028 float
591 #21 44 0x0000002c double
592 #22 12 0x0000000c unsigned char
593 #23 20 0x00000014 unsigned short
594 #24 28 0x0000001c unsigned int
595 #25 36 0x00000024 unsigned long
596 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597
598*/
599\f
600
601#include "gvarargs.h"
602#include "config.h"
603#include <stdio.h>
604
605#ifndef __SABER__
606#define saber_stop()
607#endif
608
609#ifndef __LINE__
610#define __LINE__ 0
611#endif
612
613#ifdef __STDC__
614typedef void *PTR_T;
615typedef const void *CPTR_T;
616#define __proto(x) x
617#else
618
619#if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
620typedef void *PTR_T;
621typedef void *CPTR_T;
622
623#else
624typedef char *PTR_T; /* Ultrix 3.1 */
625typedef char *CPTR_T;
626#endif
627
628#define __proto(x) ()
629#define const
630#endif
631
632/* Do to size_t being defined in sys/types.h and different
633 in stddef.h, we have to do this by hand..... Note, these
634 types are correct for MIPS based systems, and may not be
635 correct for other systems. Ultrix 4.0 and Silicon Graphics
636 have this fixed, but since the following is correct, and
637 the fact that including stddef.h gets you GCC's version
638 instead of the standard one it's not worth it to fix it. */
639
640#if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
641#define Size_t long unsigned int
642#else
643#define Size_t unsigned int
644#endif
645#define Ptrdiff_t int
646
647/* The following might be called from obstack or malloc,
648 so they can't be static. */
649
650extern void pfatal_with_name
651 __proto((char *));
652extern void fancy_abort __proto((void));
653 void botch __proto((const char *));
654extern PTR_T xmalloc __proto((Size_t));
655extern PTR_T xcalloc __proto((Size_t, Size_t));
656extern PTR_T xrealloc __proto((PTR_T, Size_t));
657extern void xfree __proto((PTR_T));
658
659extern void fatal(); /* can't use prototypes here */
660extern void error();
661
662\f
663#ifndef MIPS_DEBUGGING_INFO
664
665static int line_number;
666static int cur_line_start;
667static int debug;
668static int had_errors;
669static char *progname;
670static char *input_name;
671
672int
673main ()
674{
675 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
676 exit (1);
677}
678
679#else /* MIPS_DEBUGGING defined */
680\f
681/* The local and global symbols have a field index, so undo any defines
682 of index -> strchr and rindex -> strrchr. */
683
684#undef rindex
685#undef index
686
687#include <sys/types.h>
688#include <string.h>
689#include <ctype.h>
690#include <fcntl.h>
691#include <errno.h>
692#include <signal.h>
693#include <sys/stat.h>
694
695#ifndef CROSS_COMPILE
696#include <a.out.h>
697#else
698#include "symconst.h"
699#define LANGUAGE_C
700#include "sym.h"
701#include "filehdr.h"
702#define ST_RFDESCAPE 0xfff
703#endif
704
705#if defined (USG) || defined (NO_STAB_H)
706#include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
707#else
708#include <stab.h> /* On BSD, use the system's stab.h. */
709#endif /* not USG */
710
711#ifdef __GNU_STAB__
712#define STAB_CODE_TYPE enum __stab_debug_code
713#else
714#define STAB_CODE_TYPE int
715#endif
716
717#ifdef _OSF_SOURCE
718#define HAS_STDLIB_H
719#define HAS_UNISTD_H
720#endif
721
722#ifdef HAS_STDLIB_H
723#include <stdlib.h>
724#endif
725
726#ifdef HAS_UNISTD_H
727#include <unistd.h>
728#endif
729
730#ifndef errno
731extern int errno; /* MIPS errno.h doesn't declare this */
732#endif
733
734#ifndef MALLOC_CHECK
735#ifdef __SABER__
736#define MALLOC_CHECK
737#endif
738#endif
739
740#define IS_ASM_IDENT(ch) \
741 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
742
743\f
744/* Redefinition of of storage classes as an enumeration for better
745 debugging. */
746
747typedef enum sc {
748 sc_Nil = scNil, /* no storage class */
749 sc_Text = scText, /* text symbol */
750 sc_Data = scData, /* initialized data symbol */
751 sc_Bss = scBss, /* un-initialized data symbol */
752 sc_Register = scRegister, /* value of symbol is register number */
753 sc_Abs = scAbs, /* value of symbol is absolute */
754 sc_Undefined = scUndefined, /* who knows? */
755 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
756 sc_Bits = scBits, /* this is a bit field */
757 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
758 sc_RegImage = scRegImage, /* register value saved on stack */
759 sc_Info = scInfo, /* symbol contains debugger information */
760 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
761 sc_SData = scSData, /* load time only small data */
762 sc_SBss = scSBss, /* load time only small common */
763 sc_RData = scRData, /* load time only read only data */
764 sc_Var = scVar, /* Var parameter (fortran,pascal) */
765 sc_Common = scCommon, /* common variable */
766 sc_SCommon = scSCommon, /* small common */
767 sc_VarRegister = scVarRegister, /* Var parameter in a register */
768 sc_Variant = scVariant, /* Variant record */
769 sc_SUndefined = scSUndefined, /* small undefined(external) data */
770 sc_Init = scInit, /* .init section symbol */
771 sc_Max = scMax /* Max storage class+1 */
772} sc_t;
773
774/* Redefinition of symbol type. */
775
776typedef enum st {
777 st_Nil = stNil, /* Nuthin' special */
778 st_Global = stGlobal, /* external symbol */
779 st_Static = stStatic, /* static */
780 st_Param = stParam, /* procedure argument */
781 st_Local = stLocal, /* local variable */
782 st_Label = stLabel, /* label */
783 st_Proc = stProc, /* " " Procedure */
784 st_Block = stBlock, /* beginning of block */
785 st_End = stEnd, /* end (of anything) */
786 st_Member = stMember, /* member (of anything - struct/union/enum */
787 st_Typedef = stTypedef, /* type definition */
788 st_File = stFile, /* file name */
789 st_RegReloc = stRegReloc, /* register relocation */
790 st_Forward = stForward, /* forwarding address */
791 st_StaticProc = stStaticProc, /* load time only static procs */
792 st_Constant = stConstant, /* const */
793 st_Str = stStr, /* string */
794 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
795 st_Expr = stExpr, /* 2+2 vs. 4 */
796 st_Type = stType, /* post-coercion SER */
797 st_Max = stMax /* max type+1 */
798} st_t;
799
800/* Redefinition of type qualifiers. */
801
802typedef enum tq {
803 tq_Nil = tqNil, /* bt is what you see */
804 tq_Ptr = tqPtr, /* pointer */
805 tq_Proc = tqProc, /* procedure */
806 tq_Array = tqArray, /* duh */
807 tq_Far = tqFar, /* longer addressing - 8086/8 land */
808 tq_Vol = tqVol, /* volatile */
809 tq_Max = tqMax /* Max type qualifier+1 */
810} tq_t;
811
812/* Redefinition of basic types. */
813
814typedef enum bt {
815 bt_Nil = btNil, /* undefined */
816 bt_Adr = btAdr, /* address - integer same size as pointer */
817 bt_Char = btChar, /* character */
818 bt_UChar = btUChar, /* unsigned character */
819 bt_Short = btShort, /* short */
820 bt_UShort = btUShort, /* unsigned short */
821 bt_Int = btInt, /* int */
822 bt_UInt = btUInt, /* unsigned int */
823 bt_Long = btLong, /* long */
824 bt_ULong = btULong, /* unsigned long */
825 bt_Float = btFloat, /* float (real) */
826 bt_Double = btDouble, /* Double (real) */
827 bt_Struct = btStruct, /* Structure (Record) */
828 bt_Union = btUnion, /* Union (variant) */
829 bt_Enum = btEnum, /* Enumerated */
830 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
831 bt_Range = btRange, /* subrange of int */
832 bt_Set = btSet, /* pascal sets */
833 bt_Complex = btComplex, /* fortran complex */
834 bt_DComplex = btDComplex, /* fortran double complex */
835 bt_Indirect = btIndirect, /* forward or unnamed typedef */
836 bt_FixedDec = btFixedDec, /* Fixed Decimal */
837 bt_FloatDec = btFloatDec, /* Float Decimal */
838 bt_String = btString, /* Varying Length Character String */
839 bt_Bit = btBit, /* Aligned Bit String */
840 bt_Picture = btPicture, /* Picture */
841
842#ifdef btVoid
843 bt_Void = btVoid, /* Void */
844#else
845#define bt_Void bt_Nil
846#endif
847
848 bt_Max = btMax /* Max basic type+1 */
849} bt_t;
850
851\f
852
853/* Basic COFF storage classes. */
854enum coff_storage {
855 C_EFCN = -1,
856 C_NULL = 0,
857 C_AUTO = 1,
858 C_EXT = 2,
859 C_STAT = 3,
860 C_REG = 4,
861 C_EXTDEF = 5,
862 C_LABEL = 6,
863 C_ULABEL = 7,
864 C_MOS = 8,
865 C_ARG = 9,
866 C_STRTAG = 10,
867 C_MOU = 11,
868 C_UNTAG = 12,
869 C_TPDEF = 13,
870 C_USTATIC = 14,
871 C_ENTAG = 15,
872 C_MOE = 16,
873 C_REGPARM = 17,
874 C_FIELD = 18,
875 C_BLOCK = 100,
876 C_FCN = 101,
877 C_EOS = 102,
878 C_FILE = 103,
879 C_LINE = 104,
880 C_ALIAS = 105,
881 C_HIDDEN = 106,
882 C_MAX = 107
883} coff_storage_t;
884
885/* Regular COFF fundamental type. */
886typedef enum coff_type {
887 T_NULL = 0,
888 T_ARG = 1,
889 T_CHAR = 2,
890 T_SHORT = 3,
891 T_INT = 4,
892 T_LONG = 5,
893 T_FLOAT = 6,
894 T_DOUBLE = 7,
895 T_STRUCT = 8,
896 T_UNION = 9,
897 T_ENUM = 10,
898 T_MOE = 11,
899 T_UCHAR = 12,
900 T_USHORT = 13,
901 T_UINT = 14,
902 T_ULONG = 15,
903 T_MAX = 16
904} coff_type_t;
905
906/* Regular COFF derived types. */
907typedef enum coff_dt {
908 DT_NON = 0,
909 DT_PTR = 1,
910 DT_FCN = 2,
911 DT_ARY = 3,
912 DT_MAX = 4
913} coff_dt_t;
914
915#define N_BTMASK 017 /* bitmask to isolate basic type */
916#define N_TMASK 003 /* bitmask to isolate derived type */
917#define N_BT_SHIFT 4 /* # bits to shift past basic type */
918#define N_TQ_SHIFT 2 /* # bits to shift derived types */
919#define N_TQ 6 /* # of type qualifiers */
920
921/* States for whether to hash type or not. */
922typedef enum hash_state {
923 hash_no = 0, /* don't hash type */
924 hash_yes = 1, /* ok to hash type, or use previous hash */
925 hash_record = 2 /* ok to record hash, but don't use prev. */
926} hash_state_t;
927
928
929/* Types of different sized allocation requests. */
930enum alloc_type {
931 alloc_type_none, /* dummy value */
932 alloc_type_scope, /* nested scopes linked list */
933 alloc_type_vlinks, /* glue linking pages in varray */
934 alloc_type_shash, /* string hash element */
935 alloc_type_thash, /* type hash element */
936 alloc_type_tag, /* struct/union/tag element */
937 alloc_type_forward, /* element to hold unknown tag */
938 alloc_type_thead, /* head of type hash list */
939 alloc_type_varray, /* general varray allocation */
940 alloc_type_last /* last+1 element for array bounds */
941};
942
943\f
944#define WORD_ALIGN(x) (((x) + 3) & ~3)
945#define DWORD_ALIGN(x) (((x) + 7) & ~7)
946
947
948/* Structures to provide n-number of virtual arrays, each of which can
949 grow linearly, and which are written in the object file as sequential
950 pages. On systems with a BSD malloc that define USE_MALLOC, the
951 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
952 adds it's overhead, and rounds up to the next power of 2. Pages are
953 linked together via a linked list.
954
955 If PAGE_SIZE is > 4096, the string length in the shash_t structure
956 can't be represented (assuming there are strings > 4096 bytes). */
957
958#ifndef PAGE_SIZE
959#define PAGE_SIZE 4096 /* size of varray pages */
960#endif
961
962#define PAGE_USIZE ((Size_t)PAGE_SIZE)
963
964
965#ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
966#ifndef USE_MALLOC /* in one memory request */
967#define MAX_CLUSTER_PAGES 64
968#else
969#define MAX_CLUSTER_PAGES 63
970#endif
971#endif
972
973
974/* Linked list connecting separate page allocations. */
975typedef struct vlinks {
976 struct vlinks *prev; /* previous set of pages */
977 struct vlinks *next; /* next set of pages */
978 union page *datum; /* start of page */
979 unsigned long start_index; /* starting index # of page */
980} vlinks_t;
981
982
983/* Virtual array header. */
984typedef struct varray {
985 vlinks_t *first; /* first page link */
986 vlinks_t *last; /* last page link */
987 unsigned long num_allocated; /* # objects allocated */
988 unsigned short object_size; /* size in bytes of each object */
989 unsigned short objects_per_page; /* # objects that can fit on a page */
990 unsigned short objects_last_page; /* # objects allocated on last page */
991} varray_t;
992
993#ifndef MALLOC_CHECK
994#define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
995#else
996#define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
997#endif
998
999#define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1000 (vlinks_t *)0, /* first */ \
1001 (vlinks_t *)0, /* last */ \
1002 0, /* num_allocated */ \
1003 sizeof (type), /* object_size */ \
1004 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1005 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1006}
1007
1008/* Master type for indexes within the symbol table. */
1009typedef unsigned long symint_t;
1010
1011
1012/* Linked list support for nested scopes (file, block, structure, etc.). */
1013typedef struct scope {
1014 struct scope *prev; /* previous scope level */
1015 struct scope *free; /* free list pointer */
1016 SYMR *lsym; /* pointer to local symbol node */
1017 symint_t lnumber; /* lsym index */
1018 st_t type; /* type of the node */
1019} scope_t;
1020
1021
1022/* Forward reference list for tags referenced, but not yet defined. */
1023typedef struct forward {
1024 struct forward *next; /* next forward reference */
1025 struct forward *free; /* free list pointer */
1026 AUXU *ifd_ptr; /* pointer to store file index */
1027 AUXU *index_ptr; /* pointer to store symbol index */
1028 AUXU *type_ptr; /* pointer to munge type info */
1029} forward_t;
1030
1031
1032/* Linked list support for tags. The first tag in the list is always
1033 the current tag for that block. */
1034typedef struct tag {
1035 struct tag *free; /* free list pointer */
1036 struct shash *hash_ptr; /* pointer to the hash table head */
1037 struct tag *same_name; /* tag with same name in outer scope */
1038 struct tag *same_block; /* next tag defined in the same block. */
1039 struct forward *forward_ref; /* list of forward references */
1040 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1041 symint_t ifd; /* file # tag defined in */
1042 symint_t indx; /* index within file's local symbols */
1043} tag_t;
1044
1045
1046/* Head of a block's linked list of tags. */
1047typedef struct thead {
1048 struct thead *prev; /* previous block */
1049 struct thead *free; /* free list pointer */
1050 struct tag *first_tag; /* first tag in block defined */
1051} thead_t;
1052
1053
1054/* Union containing pointers to each the small structures which are freed up. */
1055typedef union small_free {
1056 scope_t *f_scope; /* scope structure */
1057 thead_t *f_thead; /* tag head structure */
1058 tag_t *f_tag; /* tag element structure */
1059 forward_t *f_forward; /* forward tag reference */
1060} small_free_t;
1061
1062
1063/* String hash table support. The size of the hash table must fit
1064 within a page. */
1065
1066#ifndef SHASH_SIZE
1067#define SHASH_SIZE 1009
1068#endif
1069
1070#define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1071
1072typedef struct shash {
1073 struct shash *next; /* next hash value */
1074 char *string; /* string we are hashing */
1075 symint_t len; /* string length */
1076 symint_t indx; /* index within string table */
1077 EXTR *esym_ptr; /* global symbol pointer */
1078 SYMR *sym_ptr; /* local symbol pointer */
1079 SYMR *end_ptr; /* symbol pointer to end block */
1080 tag_t *tag_ptr; /* tag pointer */
1081 PDR *proc_ptr; /* procedure descriptor pointer */
1082} shash_t;
1083
1084
1085/* Type hash table support. The size of the hash table must fit
1086 within a page with the other extended file descriptor information.
1087 Because unique types which are hashed are fewer in number than
1088 strings, we use a smaller hash value. */
1089
1090#ifndef THASH_SIZE
1091#define THASH_SIZE 113
1092#endif
1093
1094typedef struct thash {
1095 struct thash *next; /* next hash value */
1096 AUXU type; /* type we are hashing */
1097 symint_t indx; /* index within string table */
1098} thash_t;
1099
1100
1101/* Extended file descriptor that contains all of the support necessary
1102 to add things to each file separately. */
1103typedef struct efdr {
1104 FDR fdr; /* File header to be written out */
1105 FDR *orig_fdr; /* original file header */
1106 char *name; /* filename */
1107 int name_len; /* length of the filename */
1108 symint_t void_type; /* aux. pointer to 'void' type */
1109 symint_t int_type; /* aux. pointer to 'int' type */
1110 scope_t *cur_scope; /* current nested scopes */
1111 symint_t file_index; /* current file number */
1112 int nested_scopes; /* # nested scopes */
1113 varray_t strings; /* local strings */
1114 varray_t symbols; /* local symbols */
1115 varray_t procs; /* procedures */
1116 varray_t aux_syms; /* auxiliary symbols */
1117 struct efdr *next_file; /* next file descriptor */
1118 /* string/type hash tables */
1119 shash_t **shash_head; /* string hash table */
1120 thash_t *thash_head[THASH_SIZE];
1121} efdr_t;
1122
1123/* Pre-initialized extended file structure. */
1124static efdr_t init_file =
1125{
1126 { /* FDR structure */
1127 0, /* adr: memory address of beginning of file */
1128 0, /* rss: file name (of source, if known) */
1129 0, /* issBase: file's string space */
1130 0, /* cbSs: number of bytes in the ss */
1131 0, /* isymBase: beginning of symbols */
1132 0, /* csym: count file's of symbols */
1133 0, /* ilineBase: file's line symbols */
1134 0, /* cline: count of file's line symbols */
1135 0, /* ioptBase: file's optimization entries */
1136 0, /* copt: count of file's optimization entries */
1137 0, /* ipdFirst: start of procedures for this file */
1138 0, /* cpd: count of procedures for this file */
1139 0, /* iauxBase: file's auxiliary entries */
1140 0, /* caux: count of file's auxiliary entries */
1141 0, /* rfdBase: index into the file indirect table */
1142 0, /* crfd: count file indirect entries */
1143 langC, /* lang: language for this file */
1144 1, /* fMerge: whether this file can be merged */
1145 0, /* fReadin: true if read in (not just created) */
1146#if BYTES_BIG_ENDIAN
1147 1, /* fBigendian: if 1, compiled on big endian machine */
1148#else
1149 0, /* fBigendian: if 1, compiled on big endian machine */
1150#endif
1151 GLEVEL_2, /* glevel: level this file was compiled with */
1152 0, /* reserved: reserved for future use */
1153 0, /* cbLineOffset: byte offset from header for this file ln's */
1154 0, /* cbLine: size of lines for this file */
1155 },
1156
1157 (FDR *)0, /* orig_fdr: original file header pointer */
1158 (char *)0, /* name: pointer to filename */
1159 0, /* name_len: length of filename */
1160 0, /* void_type: ptr to aux node for void type */
1161 0, /* int_type: ptr to aux node for int type */
1162 (scope_t *)0, /* cur_scope: current scope being processed */
1163 0, /* file_index: current file # */
1164 0, /* nested_scopes: # nested scopes */
1165 INIT_VARRAY (char), /* strings: local string varray */
1166 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1167 INIT_VARRAY (PDR), /* procs: procedure varray */
1168 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1169
1170 (struct efdr *)0, /* next_file: next file structure */
1171
1172 (shash_t **)0, /* shash_head: string hash table */
1173 { 0 }, /* thash_head: type hash table */
1174};
1175
1176
1177static efdr_t *first_file; /* first file descriptor */
1178static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1179
1180
1181/* Union of various things that are held in pages. */
1182typedef union page {
1183 char byte [ PAGE_SIZE ];
1184 unsigned char ubyte [ PAGE_SIZE ];
1185 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1186 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1187 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1188 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1189 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1190 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1191 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1192 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1193 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1194 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1195 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1196 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1197 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1198 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1199} page_t;
1200
1201
1202/* Structure holding allocation information for small sized structures. */
1203typedef struct alloc_info {
1204 char *alloc_name; /* name of this allocation type (must be first) */
1205 page_t *cur_page; /* current page being allocated from */
1206 small_free_t free_list; /* current free list if any */
1207 int unallocated; /* number of elements unallocated on page */
1208 int total_alloc; /* total number of allocations */
1209 int total_free; /* total number of frees */
1210 int total_pages; /* total number of pages allocated */
1211} alloc_info_t;
1212
1213/* Type information collected together. */
1214typedef struct type_info {
1215 bt_t basic_type; /* basic type */
1216 coff_type_t orig_type; /* original COFF-based type */
1217 int num_tq; /* # type qualifiers */
1218 int num_dims; /* # dimensions */
1219 int num_sizes; /* # sizes */
1220 int extra_sizes; /* # extra sizes not tied with dims */
1221 tag_t * tag_ptr; /* tag pointer */
1222 int bitfield; /* symbol is a bitfield */
1223 int unknown_tag; /* this is an unknown tag */
1224 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1225 symint_t dimensions [N_TQ]; /* dimensions for each array */
1226 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1227 struct/union/enum + bitfield size */
1228} type_info_t;
1229
1230/* Pre-initialized type_info struct. */
1231static type_info_t type_info_init = {
1232 bt_Nil, /* basic type */
1233 T_NULL, /* original COFF-based type */
1234 0, /* # type qualifiers */
1235 0, /* # dimensions */
1236 0, /* # sizes */
1237 0, /* sizes not tied with dims */
1238 NULL, /* ptr to tag */
1239 0, /* bitfield */
1240 0, /* unknown tag */
1241 { /* type qualifiers */
1242 tq_Nil,
1243 tq_Nil,
1244 tq_Nil,
1245 tq_Nil,
1246 tq_Nil,
1247 tq_Nil,
1248 },
1249 { /* dimensions */
1250 0,
1251 0,
1252 0,
1253 0,
1254 0,
1255 0
1256 },
1257 { /* sizes */
1258 0,
1259 0,
1260 0,
1261 0,
1262 0,
1263 0,
1264 0,
1265 0,
1266 },
1267};
1268
1269
1270/* Global virtual arrays & hash table for external strings as well as
1271 for the tags table and global tables for file descriptors, and
1272 dense numbers. */
1273
1274static varray_t file_desc = INIT_VARRAY (efdr_t);
1275static varray_t dense_num = INIT_VARRAY (DNR);
1276static varray_t tag_strings = INIT_VARRAY (char);
1277static varray_t ext_strings = INIT_VARRAY (char);
1278static varray_t ext_symbols = INIT_VARRAY (EXTR);
1279
1280static shash_t *orig_str_hash[SHASH_SIZE];
1281static shash_t *ext_str_hash [SHASH_SIZE];
1282static shash_t *tag_hash [SHASH_SIZE];
1283
1284/* Static types for int and void. Also, remember the last function's
1285 type (which is set up when we encounter the declaration for the
1286 function, and used when the end block for the function is emitted. */
1287
1288static type_info_t int_type_info;
1289static type_info_t void_type_info;
1290static type_info_t last_func_type_info;
1291static EXTR *last_func_eptr;
1292
1293
1294/* Convert COFF basic type to ECOFF basic type. The T_NULL type
1295 really should use bt_Void, but this causes the current ecoff GDB to
1296 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1297 2.0) doesn't understand it, even though the compiler generates it.
1298 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1299 suite, but for now go with what works. */
1300
1301static bt_t map_coff_types[ (int)T_MAX ] = {
1302 bt_Nil, /* T_NULL */
1303 bt_Nil, /* T_ARG */
1304 bt_Char, /* T_CHAR */
1305 bt_Short, /* T_SHORT */
1306 bt_Int, /* T_INT */
1307 bt_Long, /* T_LONG */
1308 bt_Float, /* T_FLOAT */
1309 bt_Double, /* T_DOUBLE */
1310 bt_Struct, /* T_STRUCT */
1311 bt_Union, /* T_UNION */
1312 bt_Enum, /* T_ENUM */
1313 bt_Enum, /* T_MOE */
1314 bt_UChar, /* T_UCHAR */
1315 bt_UShort, /* T_USHORT */
1316 bt_UInt, /* T_UINT */
1317 bt_ULong /* T_ULONG */
1318};
1319
1320/* Convert COFF storage class to ECOFF storage class. */
1321static sc_t map_coff_storage[ (int)C_MAX ] = {
1322 sc_Nil, /* 0: C_NULL */
1323 sc_Abs, /* 1: C_AUTO auto var */
1324 sc_Undefined, /* 2: C_EXT external */
1325 sc_Data, /* 3: C_STAT static */
1326 sc_Register, /* 4: C_REG register */
1327 sc_Undefined, /* 5: C_EXTDEF ??? */
1328 sc_Text, /* 6: C_LABEL label */
1329 sc_Text, /* 7: C_ULABEL user label */
1330 sc_Info, /* 8: C_MOS member of struct */
1331 sc_Abs, /* 9: C_ARG argument */
1332 sc_Info, /* 10: C_STRTAG struct tag */
1333 sc_Info, /* 11: C_MOU member of union */
1334 sc_Info, /* 12: C_UNTAG union tag */
1335 sc_Info, /* 13: C_TPDEF typedef */
1336 sc_Data, /* 14: C_USTATIC ??? */
1337 sc_Info, /* 15: C_ENTAG enum tag */
1338 sc_Info, /* 16: C_MOE member of enum */
1339 sc_Register, /* 17: C_REGPARM register parameter */
1340 sc_Bits, /* 18; C_FIELD bitfield */
1341 sc_Nil, /* 19 */
1342 sc_Nil, /* 20 */
1343 sc_Nil, /* 21 */
1344 sc_Nil, /* 22 */
1345 sc_Nil, /* 23 */
1346 sc_Nil, /* 24 */
1347 sc_Nil, /* 25 */
1348 sc_Nil, /* 26 */
1349 sc_Nil, /* 27 */
1350 sc_Nil, /* 28 */
1351 sc_Nil, /* 29 */
1352 sc_Nil, /* 30 */
1353 sc_Nil, /* 31 */
1354 sc_Nil, /* 32 */
1355 sc_Nil, /* 33 */
1356 sc_Nil, /* 34 */
1357 sc_Nil, /* 35 */
1358 sc_Nil, /* 36 */
1359 sc_Nil, /* 37 */
1360 sc_Nil, /* 38 */
1361 sc_Nil, /* 39 */
1362 sc_Nil, /* 40 */
1363 sc_Nil, /* 41 */
1364 sc_Nil, /* 42 */
1365 sc_Nil, /* 43 */
1366 sc_Nil, /* 44 */
1367 sc_Nil, /* 45 */
1368 sc_Nil, /* 46 */
1369 sc_Nil, /* 47 */
1370 sc_Nil, /* 48 */
1371 sc_Nil, /* 49 */
1372 sc_Nil, /* 50 */
1373 sc_Nil, /* 51 */
1374 sc_Nil, /* 52 */
1375 sc_Nil, /* 53 */
1376 sc_Nil, /* 54 */
1377 sc_Nil, /* 55 */
1378 sc_Nil, /* 56 */
1379 sc_Nil, /* 57 */
1380 sc_Nil, /* 58 */
1381 sc_Nil, /* 59 */
1382 sc_Nil, /* 60 */
1383 sc_Nil, /* 61 */
1384 sc_Nil, /* 62 */
1385 sc_Nil, /* 63 */
1386 sc_Nil, /* 64 */
1387 sc_Nil, /* 65 */
1388 sc_Nil, /* 66 */
1389 sc_Nil, /* 67 */
1390 sc_Nil, /* 68 */
1391 sc_Nil, /* 69 */
1392 sc_Nil, /* 70 */
1393 sc_Nil, /* 71 */
1394 sc_Nil, /* 72 */
1395 sc_Nil, /* 73 */
1396 sc_Nil, /* 74 */
1397 sc_Nil, /* 75 */
1398 sc_Nil, /* 76 */
1399 sc_Nil, /* 77 */
1400 sc_Nil, /* 78 */
1401 sc_Nil, /* 79 */
1402 sc_Nil, /* 80 */
1403 sc_Nil, /* 81 */
1404 sc_Nil, /* 82 */
1405 sc_Nil, /* 83 */
1406 sc_Nil, /* 84 */
1407 sc_Nil, /* 85 */
1408 sc_Nil, /* 86 */
1409 sc_Nil, /* 87 */
1410 sc_Nil, /* 88 */
1411 sc_Nil, /* 89 */
1412 sc_Nil, /* 90 */
1413 sc_Nil, /* 91 */
1414 sc_Nil, /* 92 */
1415 sc_Nil, /* 93 */
1416 sc_Nil, /* 94 */
1417 sc_Nil, /* 95 */
1418 sc_Nil, /* 96 */
1419 sc_Nil, /* 97 */
1420 sc_Nil, /* 98 */
1421 sc_Nil, /* 99 */
1422 sc_Text, /* 100: C_BLOCK block start/end */
1423 sc_Text, /* 101: C_FCN function start/end */
1424 sc_Info, /* 102: C_EOS end of struct/union/enum */
1425 sc_Nil, /* 103: C_FILE file start */
1426 sc_Nil, /* 104: C_LINE line number */
1427 sc_Nil, /* 105: C_ALIAS combined type info */
1428 sc_Nil, /* 106: C_HIDDEN ??? */
1429};
1430
1431/* Convert COFF storage class to ECOFF symbol type. */
1432static st_t map_coff_sym_type[ (int)C_MAX ] = {
1433 st_Nil, /* 0: C_NULL */
1434 st_Local, /* 1: C_AUTO auto var */
1435 st_Global, /* 2: C_EXT external */
1436 st_Static, /* 3: C_STAT static */
1437 st_Local, /* 4: C_REG register */
1438 st_Global, /* 5: C_EXTDEF ??? */
1439 st_Label, /* 6: C_LABEL label */
1440 st_Label, /* 7: C_ULABEL user label */
1441 st_Member, /* 8: C_MOS member of struct */
1442 st_Param, /* 9: C_ARG argument */
1443 st_Block, /* 10: C_STRTAG struct tag */
1444 st_Member, /* 11: C_MOU member of union */
1445 st_Block, /* 12: C_UNTAG union tag */
1446 st_Typedef, /* 13: C_TPDEF typedef */
1447 st_Static, /* 14: C_USTATIC ??? */
1448 st_Block, /* 15: C_ENTAG enum tag */
1449 st_Member, /* 16: C_MOE member of enum */
1450 st_Param, /* 17: C_REGPARM register parameter */
1451 st_Member, /* 18; C_FIELD bitfield */
1452 st_Nil, /* 19 */
1453 st_Nil, /* 20 */
1454 st_Nil, /* 21 */
1455 st_Nil, /* 22 */
1456 st_Nil, /* 23 */
1457 st_Nil, /* 24 */
1458 st_Nil, /* 25 */
1459 st_Nil, /* 26 */
1460 st_Nil, /* 27 */
1461 st_Nil, /* 28 */
1462 st_Nil, /* 29 */
1463 st_Nil, /* 30 */
1464 st_Nil, /* 31 */
1465 st_Nil, /* 32 */
1466 st_Nil, /* 33 */
1467 st_Nil, /* 34 */
1468 st_Nil, /* 35 */
1469 st_Nil, /* 36 */
1470 st_Nil, /* 37 */
1471 st_Nil, /* 38 */
1472 st_Nil, /* 39 */
1473 st_Nil, /* 40 */
1474 st_Nil, /* 41 */
1475 st_Nil, /* 42 */
1476 st_Nil, /* 43 */
1477 st_Nil, /* 44 */
1478 st_Nil, /* 45 */
1479 st_Nil, /* 46 */
1480 st_Nil, /* 47 */
1481 st_Nil, /* 48 */
1482 st_Nil, /* 49 */
1483 st_Nil, /* 50 */
1484 st_Nil, /* 51 */
1485 st_Nil, /* 52 */
1486 st_Nil, /* 53 */
1487 st_Nil, /* 54 */
1488 st_Nil, /* 55 */
1489 st_Nil, /* 56 */
1490 st_Nil, /* 57 */
1491 st_Nil, /* 58 */
1492 st_Nil, /* 59 */
1493 st_Nil, /* 60 */
1494 st_Nil, /* 61 */
1495 st_Nil, /* 62 */
1496 st_Nil, /* 63 */
1497 st_Nil, /* 64 */
1498 st_Nil, /* 65 */
1499 st_Nil, /* 66 */
1500 st_Nil, /* 67 */
1501 st_Nil, /* 68 */
1502 st_Nil, /* 69 */
1503 st_Nil, /* 70 */
1504 st_Nil, /* 71 */
1505 st_Nil, /* 72 */
1506 st_Nil, /* 73 */
1507 st_Nil, /* 74 */
1508 st_Nil, /* 75 */
1509 st_Nil, /* 76 */
1510 st_Nil, /* 77 */
1511 st_Nil, /* 78 */
1512 st_Nil, /* 79 */
1513 st_Nil, /* 80 */
1514 st_Nil, /* 81 */
1515 st_Nil, /* 82 */
1516 st_Nil, /* 83 */
1517 st_Nil, /* 84 */
1518 st_Nil, /* 85 */
1519 st_Nil, /* 86 */
1520 st_Nil, /* 87 */
1521 st_Nil, /* 88 */
1522 st_Nil, /* 89 */
1523 st_Nil, /* 90 */
1524 st_Nil, /* 91 */
1525 st_Nil, /* 92 */
1526 st_Nil, /* 93 */
1527 st_Nil, /* 94 */
1528 st_Nil, /* 95 */
1529 st_Nil, /* 96 */
1530 st_Nil, /* 97 */
1531 st_Nil, /* 98 */
1532 st_Nil, /* 99 */
1533 st_Block, /* 100: C_BLOCK block start/end */
1534 st_Proc, /* 101: C_FCN function start/end */
1535 st_End, /* 102: C_EOS end of struct/union/enum */
1536 st_File, /* 103: C_FILE file start */
1537 st_Nil, /* 104: C_LINE line number */
1538 st_Nil, /* 105: C_ALIAS combined type info */
1539 st_Nil, /* 106: C_HIDDEN ??? */
1540};
1541
1542/* Map COFF derived types to ECOFF type qualifiers. */
1543static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1544 tq_Nil, /* 0: DT_NON no more qualifiers */
1545 tq_Ptr, /* 1: DT_PTR pointer */
1546 tq_Proc, /* 2: DT_FCN function */
1547 tq_Array, /* 3: DT_ARY array */
1548};
1549
1550
1551/* Keep track of different sized allocation requests. */
1552static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1553
1554\f
1555/* Pointers and such to the original symbol table that is read in. */
1556static struct filehdr orig_file_header; /* global object file header */
1557
1558static HDRR orig_sym_hdr; /* symbolic header on input */
1559static char *orig_linenum; /* line numbers */
1560static DNR *orig_dense; /* dense numbers */
1561static PDR *orig_procs; /* procedures */
1562static SYMR *orig_local_syms; /* local symbols */
1563static OPTR *orig_opt_syms; /* optimization symbols */
1564static AUXU *orig_aux_syms; /* auxiliary symbols */
1565static char *orig_local_strs; /* local strings */
1566static char *orig_ext_strs; /* external strings */
1567static FDR *orig_files; /* file descriptors */
1568static symint_t *orig_rfds; /* relative file desc's */
1569static EXTR *orig_ext_syms; /* external symbols */
1570
1571/* Macros to convert an index into a given object within the original
1572 symbol table. */
1573#define CHECK(num,max,str) \
1574 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1575
1576#define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1577#define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1578#define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1579#define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1580#define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1581#define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1582#define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1583#define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1584#define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1585#define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1586#define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1587
1588/* Various other statics. */
1589static HDRR symbolic_header; /* symbolic header */
1590static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1591static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1592static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1593static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1594static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1595static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1596static long file_offset = 0; /* current file offset */
1597static long max_file_offset = 0; /* maximum file offset */
1598static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1599static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1600static char *progname = (char *)0; /* program name for errors */
1601static char *input_name = "stdin"; /* name of input file */
1602static char *object_name = (char *)0; /* tmp. name of object file */
1603static char *obj_in_name = (char *)0; /* name of input object file */
1604static char *cur_line_start = (char *)0; /* current line read in */
1605static char *cur_line_ptr = (char *)0; /* ptr within current line */
1606static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1607static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1608static long line_number = 0; /* current input line number */
1609static int debug = 0; /* trace functions */
1610static int version = 0; /* print version # */
1611static int had_errors = 0; /* != 0 if errors were found */
1612static int rename_output = 0; /* != 0 if rename output file*/
1613static int delete_input = 0; /* != 0 if delete input after done */
1614static int stabs_seen = 0; /* != 0 if stabs have been seen */
1615
1616
1617/* Pseudo symbol to use when putting stabs into the symbol table. */
1618#ifndef STABS_SYMBOL
1619#define STABS_SYMBOL "@stabs"
1620#endif
1621
1622static char stabs_symbol[] = STABS_SYMBOL;
1623
1624\f
1625/* Forward reference for functions. See the definition for more details. */
1626
1627#ifndef STATIC
1628#define STATIC static
1629#endif
1630
1631STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1632
1633STATIC shash_t *hash_string __proto((const char *,
1634 Ptrdiff_t,
1635 shash_t **,
1636 symint_t *));
1637
1638STATIC symint_t add_string __proto((varray_t *,
1639 shash_t **,
1640 const char *,
1641 const char *,
1642 shash_t **));
1643
1644STATIC symint_t add_local_symbol
1645 __proto((const char *,
1646 const char *,
1647 st_t,
1648 sc_t,
1649 symint_t,
1650 symint_t));
1651
1652STATIC symint_t add_ext_symbol __proto((const char *,
1653 const char *,
1654 st_t,
1655 sc_t,
1656 long,
1657 symint_t,
1658 int));
1659
1660STATIC symint_t add_aux_sym_symint
1661 __proto((symint_t));
1662
1663STATIC symint_t add_aux_sym_rndx
1664 __proto((int, symint_t));
1665
1666STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1667 hash_state_t,
1668 thash_t **));
1669
1670STATIC tag_t * get_tag __proto((const char *,
1671 const char *,
1672 symint_t,
1673 bt_t));
1674
1675STATIC void add_unknown_tag __proto((tag_t *));
1676
1677STATIC void add_procedure __proto((const char *,
1678 const char *));
1679
1680STATIC void add_file __proto((const char *,
1681 const char *));
1682
1683STATIC void add_bytes __proto((varray_t *,
1684 char *,
1685 Size_t));
1686
1687STATIC void add_varray_page __proto((varray_t *));
1688
1689STATIC void update_headers __proto((void));
1690
1691STATIC void write_varray __proto((varray_t *, off_t, const char *));
1692STATIC void write_object __proto((void));
1693STATIC char *st_to_string __proto((st_t));
1694STATIC char *sc_to_string __proto((sc_t));
1695STATIC char *read_line __proto((void));
1696STATIC void parse_input __proto((void));
1697STATIC void mark_stabs __proto((const char *));
1698STATIC void parse_begin __proto((const char *));
1699STATIC void parse_bend __proto((const char *));
1700STATIC void parse_def __proto((const char *));
1701STATIC void parse_end __proto((const char *));
1702STATIC void parse_ent __proto((const char *));
1703STATIC void parse_file __proto((const char *));
1704STATIC void parse_stabs_common
1705 __proto((const char *, const char *, const char *));
1706STATIC void parse_stabs __proto((const char *));
1707STATIC void parse_stabn __proto((const char *));
1708STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1709STATIC void copy_object __proto((void));
1710
1711STATIC void catch_signal __proto((int));
1712STATIC page_t *allocate_page __proto((void));
1713
1714STATIC page_t *allocate_multiple_pages
1715 __proto((Size_t));
1716
1717STATIC void free_multiple_pages
1718 __proto((page_t *, Size_t));
1719
1720#ifndef MALLOC_CHECK
1721STATIC page_t *allocate_cluster
1722 __proto((Size_t));
1723#endif
1724
1725STATIC forward_t *allocate_forward __proto((void));
1726STATIC scope_t *allocate_scope __proto((void));
1727STATIC shash_t *allocate_shash __proto((void));
1728STATIC tag_t *allocate_tag __proto((void));
1729STATIC thash_t *allocate_thash __proto((void));
1730STATIC thead_t *allocate_thead __proto((void));
1731STATIC vlinks_t *allocate_vlinks __proto((void));
1732
1733STATIC void free_forward __proto((forward_t *));
1734STATIC void free_scope __proto((scope_t *));
1735STATIC void free_tag __proto((tag_t *));
1736STATIC void free_thead __proto((thead_t *));
1737
1738STATIC char *local_index __proto((const char *, int));
1739STATIC char *local_rindex __proto((const char *, int));
1740
1741extern char *sbrk __proto((int));
1742extern PTR_T malloc __proto((Size_t));
1743extern PTR_T calloc __proto((Size_t, Size_t));
1744extern PTR_T realloc __proto((PTR_T, Size_t));
1745extern void free __proto((PTR_T));
1746extern char *mktemp __proto((char *));
1747extern long strtol __proto((const char *, char **, int));
1748
1749extern char *optarg;
1750extern int optind;
1751extern int opterr;
1752extern char *version_string;
1753extern char *sys_siglist[NSIG + 1];
1754
1755#ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1756#define SEEK_SET 0 /* Set file pointer to offset */
1757#define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1758#define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1759#endif
1760
1761\f
1762/* List of assembler pseudo ops and beginning sequences that need
1763 special actions. Someday, this should be a hash table, and such,
1764 but for now a linear list of names and calls to memcmp will
1765 do...... */
1766
1767typedef struct _pseudo_ops {
1768 const char *name; /* pseudo-op in ascii */
1769 int len; /* length of name to compare */
1770 void (*func) __proto((const char *)); /* function to handle line */
1771} pseudo_ops_t;
1772
1773static pseudo_ops_t pseudo_ops[] = {
1774 { "#.def", sizeof("#.def")-1, parse_def },
1775 { "#.begin", sizeof("#.begin")-1, parse_begin },
1776 { "#.bend", sizeof("#.bend")-1, parse_bend },
1777 { ".end", sizeof(".end")-1, parse_end },
1778 { ".ent", sizeof(".ent")-1, parse_ent },
1779 { ".file", sizeof(".file")-1, parse_file },
1780 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1781 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1782 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1783 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1784 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1785};
1786
1787\f
1788/* Add a page to a varray object. */
1789
1790STATIC void
1791add_varray_page (vp)
1792 varray_t *vp; /* varray to add page to */
1793{
1794 vlinks_t *new_links = allocate_vlinks ();
1795
1796#ifdef MALLOC_CHECK
1797 if (vp->object_size > 1)
1798 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1799 else
1800#endif
1801 new_links->datum = allocate_page ();
1802
1803 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1804 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1805
1806 new_links->start_index = vp->num_allocated;
1807 vp->objects_last_page = 0;
1808
1809 if (vp->first == (vlinks_t *)0) /* first allocation? */
1810 vp->first = vp->last = new_links;
1811 else
1812 { /* 2nd or greater allocation */
1813 new_links->prev = vp->last;
1814 vp->last->next = new_links;
1815 vp->last = new_links;
1816 }
1817}
1818
1819\f
1820/* Compute hash code (from tree.c) */
1821
1822#define HASHBITS 30
1823
1824STATIC shash_t *
1825hash_string (text, hash_len, hash_tbl, ret_hash_index)
1826 const char *text; /* ptr to text to hash */
1827 Ptrdiff_t hash_len; /* length of the text */
1828 shash_t **hash_tbl; /* hash table */
1829 symint_t *ret_hash_index; /* ptr to store hash index */
1830{
1831 register unsigned long hi;
1832 register Ptrdiff_t i;
1833 register shash_t *ptr;
1834 register int first_ch = *text;
1835
1836 hi = hash_len;
1837 for (i = 0; i < hash_len; i++)
1838 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1839
1840 hi &= (1 << HASHBITS) - 1;
1841 hi %= SHASH_SIZE;
1842
1843 if (ret_hash_index != (symint_t *)0)
1844 *ret_hash_index = hi;
1845
1846 for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1847 if (hash_len == ptr->len
1848 && first_ch == ptr->string[0]
1849 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1850 break;
1851
1852 return ptr;
1853}
1854
1855\f
1856/* Add a string (and null pad) to one of the string tables. A
1857 consequence of hashing strings, is that we don't let strings
1858 cross page boundaries. The extra nulls will be ignored. */
1859
1860STATIC symint_t
1861add_string (vp, hash_tbl, start, end_p1, ret_hash)
1862 varray_t *vp; /* string virtual array */
1863 shash_t **hash_tbl; /* ptr to hash table */
1864 const char *start; /* 1st byte in string */
1865 const char *end_p1; /* 1st byte after string */
1866 shash_t **ret_hash; /* return hash pointer */
1867{
1868 register Ptrdiff_t len = end_p1 - start;
1869 register shash_t *hash_ptr;
1870 symint_t hi;
1871
1872 if (len >= PAGE_USIZE)
1873 fatal ("String too big (%ld bytes)", (long) len);
1874
1875 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1876 if (hash_ptr == (shash_t *)0)
1877 {
1878 register char *p;
1879
1880 if (vp->objects_last_page + len >= PAGE_USIZE)
1881 {
1882 vp->num_allocated =
1883 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1884 add_varray_page (vp);
1885 }
1886
1887 hash_ptr = allocate_shash ();
1888 hash_ptr->next = hash_tbl[hi];
1889 hash_tbl[hi] = hash_ptr;
1890
1891 hash_ptr->len = len;
1892 hash_ptr->indx = vp->num_allocated;
1893 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1894
1895 vp->objects_last_page += len+1;
1896 vp->num_allocated += len+1;
1897
1898 while (len-- > 0)
1899 *p++ = *start++;
1900
1901 *p = '\0';
1902 }
1903
1904 if (ret_hash != (shash_t **)0)
1905 *ret_hash = hash_ptr;
1906
1907 return hash_ptr->indx;
1908}
1909
1910\f
1911/* Add a local symbol. */
1912
1913STATIC symint_t
1914add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1915 const char *str_start; /* first byte in string */
1916 const char *str_end_p1; /* first byte after string */
1917 st_t type; /* symbol type */
1918 sc_t storage; /* storage class */
1919 symint_t value; /* value of symbol */
1920 symint_t indx; /* index to local/aux. syms */
1921{
1922 register symint_t ret;
1923 register SYMR *psym;
1924 register scope_t *pscope;
1925 register thead_t *ptag_head;
1926 register tag_t *ptag;
1927 register tag_t *ptag_next;
1928 register varray_t *vp = &cur_file_ptr->symbols;
1929 register int scope_delta = 0;
1930 shash_t *hash_ptr = (shash_t *)0;
1931
1932 if (vp->objects_last_page == vp->objects_per_page)
1933 add_varray_page (vp);
1934
1935 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1936
1937 psym->value = value;
1938 psym->st = (unsigned) type;
1939 psym->sc = (unsigned) storage;
1940 psym->index = indx;
1941 psym->iss = (str_start == (const char *)0)
1942 ? 0
1943 : add_string (&cur_file_ptr->strings,
1944 &cur_file_ptr->shash_head[0],
1945 str_start,
1946 str_end_p1,
1947 &hash_ptr);
1948
1949 ret = vp->num_allocated++;
1950
1951 if (MIPS_IS_STAB(psym))
1952 return ret;
1953
1954 /* Save the symbol within the hash table if this is a static
1955 item, and it has a name. */
1956 if (hash_ptr != (shash_t *)0
1957 && (type == st_Global || type == st_Static || type == st_Label
1958 || type == st_Proc || type == st_StaticProc))
1959 hash_ptr->sym_ptr = psym;
1960
1961 /* push or pop a scope if appropriate. */
1962 switch (type)
1963 {
1964 default:
1965 break;
1966
1967 case st_File: /* beginning of file */
1968 case st_Proc: /* procedure */
1969 case st_StaticProc: /* static procedure */
1970 case st_Block: /* begin scope */
1971 pscope = allocate_scope ();
1972 pscope->prev = cur_file_ptr->cur_scope;
1973 pscope->lsym = psym;
1974 pscope->lnumber = ret;
1975 pscope->type = type;
1976 cur_file_ptr->cur_scope = pscope;
1977
1978 if (type != st_File)
1979 scope_delta = 1;
1980
1981 /* For every block type except file, struct, union, or
1982 enumeration blocks, push a level on the tag stack. We omit
1983 file types, so that tags can span file boundaries. */
1984 if (type != st_File && storage != sc_Info)
1985 {
1986 ptag_head = allocate_thead ();
1987 ptag_head->first_tag = 0;
1988 ptag_head->prev = cur_tag_head;
1989 cur_tag_head = ptag_head;
1990 }
1991 break;
1992
1993 case st_End:
1994 pscope = cur_file_ptr->cur_scope;
1995 if (pscope == (scope_t *)0)
1996 error ("internal error, too many st_End's");
1997
1998 else
1999 {
2000 st_t begin_type = (st_t) pscope->lsym->st;
2001
2002 if (begin_type != st_File)
2003 scope_delta = -1;
2004
2005 /* Except for file, structure, union, or enumeration end
2006 blocks remove all tags created within this scope. */
2007 if (begin_type != st_File && storage != sc_Info)
2008 {
2009 ptag_head = cur_tag_head;
2010 cur_tag_head = ptag_head->prev;
2011
2012 for (ptag = ptag_head->first_tag;
2013 ptag != (tag_t *)0;
2014 ptag = ptag_next)
2015 {
2016 if (ptag->forward_ref != (forward_t *)0)
2017 add_unknown_tag (ptag);
2018
2019 ptag_next = ptag->same_block;
2020 ptag->hash_ptr->tag_ptr = ptag->same_name;
2021 free_tag (ptag);
2022 }
2023
2024 free_thead (ptag_head);
2025 }
2026
2027 cur_file_ptr->cur_scope = pscope->prev;
2028 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2029
2030 if (storage != sc_Info)
2031 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2032
2033 if (begin_type == st_File || begin_type == st_Block)
2034 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2035
2036 /* Functions push two or more aux words as follows:
2037 1st word: index+1 of the end symbol
2038 2nd word: type of the function (plus any aux words needed).
2039 Also, tie the external pointer back to the function begin symbol. */
2040 else
2041 {
2042 symint_t type;
2043 pscope->lsym->index = add_aux_sym_symint (ret+1);
2044 type = add_aux_sym_tir (&last_func_type_info,
2045 hash_no,
2046 &cur_file_ptr->thash_head[0]);
2047 if (last_func_eptr)
2048 {
2049 last_func_eptr->ifd = cur_file_ptr->file_index;
2050 last_func_eptr->asym.index = type;
2051 }
2052 }
2053
2054 free_scope (pscope);
2055 }
2056 }
2057
2058 cur_file_ptr->nested_scopes += scope_delta;
2059
2060 if (debug && type != st_File
2061 && (debug > 2 || type == st_Block || type == st_End
2062 || type == st_Proc || type == st_StaticProc))
2063 {
2064 char *sc_str = sc_to_string (storage);
2065 char *st_str = st_to_string (type);
2066 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2067
2068 fprintf (stderr,
2069 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2070 value, depth, sc_str);
2071
2072 if (str_start && str_end_p1 - str_start > 0)
2073 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2074 else
2075 {
2076 Size_t len = strlen (st_str);
2077 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2078 }
2079 }
2080
2081 return ret;
2082}
2083
2084\f
2085/* Add an external symbol. */
2086
2087STATIC symint_t
2088add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2089 const char *str_start; /* first byte in string */
2090 const char *str_end_p1; /* first byte after string */
2091 st_t type; /* symbol type */
2092 sc_t storage; /* storage class */
2093 long value; /* value of symbol */
2094 symint_t indx; /* index to local/aux. syms */
2095 int ifd; /* file index */
2096{
2097 register EXTR *psym;
2098 register varray_t *vp = &ext_symbols;
2099 shash_t *hash_ptr = (shash_t *)0;
2100
2101 if (debug > 1)
2102 {
2103 char *sc_str = sc_to_string (storage);
2104 char *st_str = st_to_string (type);
2105
2106 fprintf (stderr,
2107 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2108 value, ifd, sc_str);
2109
2110 if (str_start && str_end_p1 - str_start > 0)
2111 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2112 else
2113 fprintf (stderr, " st= %s\n", st_str);
2114 }
2115
2116 if (vp->objects_last_page == vp->objects_per_page)
2117 add_varray_page (vp);
2118
2119 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2120
2121 psym->ifd = ifd;
2122 psym->asym.value = value;
2123 psym->asym.st = (unsigned) type;
2124 psym->asym.sc = (unsigned) storage;
2125 psym->asym.index = indx;
2126 psym->asym.iss = (str_start == (const char *)0)
2127 ? 0
2128 : add_string (&ext_strings,
2129 &ext_str_hash[0],
2130 str_start,
2131 str_end_p1,
2132 &hash_ptr);
2133
2134 hash_ptr->esym_ptr = psym;
2135 return vp->num_allocated++;
2136}
2137
2138\f
2139/* Add an auxiliary symbol (passing a symint). */
2140
2141STATIC symint_t
2142add_aux_sym_symint (aux_word)
2143 symint_t aux_word; /* auxiliary information word */
2144{
2145 register AUXU *aux_ptr;
2146 register efdr_t *file_ptr = cur_file_ptr;
2147 register varray_t *vp = &file_ptr->aux_syms;
2148
2149 if (vp->objects_last_page == vp->objects_per_page)
2150 add_varray_page (vp);
2151
2152 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2153 aux_ptr->isym = aux_word;
2154
2155 return vp->num_allocated++;
2156}
2157
2158
2159/* Add an auxiliary symbol (passing a file/symbol index combo). */
2160
2161STATIC symint_t
2162add_aux_sym_rndx (file_index, sym_index)
2163 int file_index;
2164 symint_t sym_index;
2165{
2166 register AUXU *aux_ptr;
2167 register efdr_t *file_ptr = cur_file_ptr;
2168 register varray_t *vp = &file_ptr->aux_syms;
2169
2170 if (vp->objects_last_page == vp->objects_per_page)
2171 add_varray_page (vp);
2172
2173 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2174 aux_ptr->rndx.rfd = file_index;
2175 aux_ptr->rndx.index = sym_index;
2176
2177 return vp->num_allocated++;
2178}
2179
2180\f
2181/* Add an auxiliary symbol (passing the basic type and possibly
2182 type qualifiers). */
2183
2184STATIC symint_t
2185add_aux_sym_tir (t, state, hash_tbl)
2186 type_info_t *t; /* current type information */
2187 hash_state_t state; /* whether to hash type or not */
2188 thash_t **hash_tbl; /* pointer to hash table to use */
2189{
2190 register AUXU *aux_ptr;
2191 register efdr_t *file_ptr = cur_file_ptr;
2192 register varray_t *vp = &file_ptr->aux_syms;
2193 static AUXU init_aux;
2194 symint_t ret;
2195 int i;
2196 AUXU aux;
2197
2198 aux = init_aux;
2199 aux.ti.bt = (int) t->basic_type;
2200 aux.ti.continued = 0;
2201 aux.ti.fBitfield = t->bitfield;
2202
2203 aux.ti.tq0 = (int) t->type_qualifiers[0];
2204 aux.ti.tq1 = (int) t->type_qualifiers[1];
2205 aux.ti.tq2 = (int) t->type_qualifiers[2];
2206 aux.ti.tq3 = (int) t->type_qualifiers[3];
2207 aux.ti.tq4 = (int) t->type_qualifiers[4];
2208 aux.ti.tq5 = (int) t->type_qualifiers[5];
2209
2210
2211 /* For anything that adds additional information, we must not hash,
2212 so check here, and reset our state. */
2213
2214 if (state != hash_no
2215 && (t->type_qualifiers[0] == tq_Array
2216 || t->type_qualifiers[1] == tq_Array
2217 || t->type_qualifiers[2] == tq_Array
2218 || t->type_qualifiers[3] == tq_Array
2219 || t->type_qualifiers[4] == tq_Array
2220 || t->type_qualifiers[5] == tq_Array
2221 || t->basic_type == bt_Struct
2222 || t->basic_type == bt_Union
2223 || t->basic_type == bt_Enum
2224 || t->bitfield
2225 || t->num_dims > 0))
2226 state = hash_no;
2227
2228 /* See if we can hash this type, and save some space, but some types
2229 can't be hashed (because they contain arrays or continuations),
2230 and others can be put into the hash list, but cannot use existing
2231 types because other aux entries precede this one. */
2232
2233 if (state != hash_no)
2234 {
2235 register thash_t *hash_ptr;
2236 register symint_t hi;
2237
2238 hi = aux.isym & ((1 << HASHBITS) - 1);
2239 hi %= THASH_SIZE;
2240
2241 for (hash_ptr = hash_tbl[hi];
2242 hash_ptr != (thash_t *)0;
2243 hash_ptr = hash_ptr->next)
2244 {
2245 if (aux.isym == hash_ptr->type.isym)
2246 break;
2247 }
2248
2249 if (hash_ptr != (thash_t *)0 && state == hash_yes)
2250 return hash_ptr->indx;
2251
2252 if (hash_ptr == (thash_t *)0)
2253 {
2254 hash_ptr = allocate_thash ();
2255 hash_ptr->next = hash_tbl[hi];
2256 hash_ptr->type = aux;
2257 hash_ptr->indx = vp->num_allocated;
2258 hash_tbl[hi] = hash_ptr;
2259 }
2260 }
2261
2262 /* Everything is set up, add the aux symbol. */
2263 if (vp->objects_last_page == vp->objects_per_page)
2264 add_varray_page (vp);
2265
2266 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2267 *aux_ptr = aux;
2268
2269 ret = vp->num_allocated++;
2270
2271 /* Add bitfield length if it exists.
2272
2273 NOTE: Mips documentation claims bitfield goes at the end of the
2274 AUX record, but the DECstation compiler emits it here.
2275 (This would only make a difference for enum bitfields.)
2276
2277 Also note: We use the last size given since gcc may emit 2
2278 for an enum bitfield. */
2279
2280 if (t->bitfield)
2281 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2282
2283
2284 /* Add tag information if needed. Structure, union, and enum
2285 references add 2 aux symbols: a [file index, symbol index]
2286 pointer to the structure type, and the current file index. */
2287
2288 if (t->basic_type == bt_Struct
2289 || t->basic_type == bt_Union
2290 || t->basic_type == bt_Enum)
2291 {
2292 register symint_t file_index = t->tag_ptr->ifd;
2293 register symint_t sym_index = t->tag_ptr->indx;
2294
2295 if (t->unknown_tag)
2296 {
2297 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2298 (void) add_aux_sym_symint ((symint_t)-1);
2299 }
2300 else if (sym_index != indexNil)
2301 {
2302 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2303 (void) add_aux_sym_symint (file_index);
2304 }
2305 else
2306 {
2307 register forward_t *forward_ref = allocate_forward ();
2308
2309 forward_ref->type_ptr = aux_ptr;
2310 forward_ref->next = t->tag_ptr->forward_ref;
2311 t->tag_ptr->forward_ref = forward_ref;
2312
2313 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2314 forward_ref->index_ptr
2315 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2316
2317 (void) add_aux_sym_symint (file_index);
2318 forward_ref->ifd_ptr
2319 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2320 }
2321 }
2322
2323 /* Add information about array bounds if they exist. */
2324 for (i = 0; i < t->num_dims; i++)
2325 {
2326 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2327 cur_file_ptr->int_type);
2328
2329 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2330 (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2331 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2332 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2333 ? 0
2334 : (t->sizes[i] * 8) / t->dimensions[i]);
2335 };
2336
2337 /* NOTE: Mips documentation claism that the bitfield width goes here.
2338 But it needs to be emitted earlier. */
2339
2340 return ret;
2341}
2342
2343\f
2344/* Add a tag to the tag table (unless it already exists). */
2345
2346STATIC tag_t *
2347get_tag (tag_start, tag_end_p1, indx, basic_type)
2348 const char *tag_start; /* 1st byte of tag name */
2349 const char *tag_end_p1; /* 1st byte after tag name */
2350 symint_t indx; /* index of tag start block */
2351 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2352{
2353 shash_t *hash_ptr;
2354 tag_t *tag_ptr;
2355 hash_ptr = hash_string (tag_start,
2356 tag_end_p1 - tag_start,
2357 &tag_hash[0],
2358 (symint_t *)0);
2359
2360 if (hash_ptr != (shash_t *)0
2361 && hash_ptr->tag_ptr != (tag_t *)0)
2362 {
2363 tag_ptr = hash_ptr->tag_ptr;
2364 if (indx != indexNil)
2365 {
2366 tag_ptr->basic_type = basic_type;
2367 tag_ptr->ifd = cur_file_ptr->file_index;
2368 tag_ptr->indx = indx;
2369 }
2370 return tag_ptr;
2371 }
2372
2373 (void) add_string (&tag_strings,
2374 &tag_hash[0],
2375 tag_start,
2376 tag_end_p1,
2377 &hash_ptr);
2378
2379 tag_ptr = allocate_tag ();
2380 tag_ptr->forward_ref = (forward_t *) 0;
2381 tag_ptr->hash_ptr = hash_ptr;
2382 tag_ptr->same_name = hash_ptr->tag_ptr;
2383 tag_ptr->basic_type = basic_type;
2384 tag_ptr->indx = indx;
2385 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2386 tag_ptr->same_block = cur_tag_head->first_tag;
2387
2388 cur_tag_head->first_tag = tag_ptr;
2389 hash_ptr->tag_ptr = tag_ptr;
2390
2391 return tag_ptr;
2392}
2393
2394\f
2395/* Add an unknown {struct, union, enum} tag. */
2396
2397STATIC void
2398add_unknown_tag (ptag)
2399 tag_t *ptag; /* pointer to tag information */
2400{
2401 shash_t *hash_ptr = ptag->hash_ptr;
2402 char *name_start = hash_ptr->string;
2403 char *name_end_p1 = name_start + hash_ptr->len;
2404 forward_t *f_next = ptag->forward_ref;
2405 forward_t *f_cur;
2406 int sym_index;
2407 int file_index = cur_file_ptr->file_index;
2408
2409 if (debug > 1)
2410 {
2411 char *agg_type = "{unknown aggregate type}";
2412 switch (ptag->basic_type)
2413 {
2414 case bt_Struct: agg_type = "struct"; break;
2415 case bt_Union: agg_type = "union"; break;
2416 case bt_Enum: agg_type = "enum"; break;
2417 default: break;
2418 }
2419
2420 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2421 hash_ptr->len, name_start);
2422 }
2423
2424 sym_index = add_local_symbol (name_start,
2425 name_end_p1,
2426 st_Block,
2427 sc_Info,
2428 (symint_t)0,
2429 (symint_t)0);
2430
2431 (void) add_local_symbol (name_start,
2432 name_end_p1,
2433 st_End,
2434 sc_Info,
2435 (symint_t)0,
2436 (symint_t)0);
2437
2438 while (f_next != (forward_t *)0)
2439 {
2440 f_cur = f_next;
2441 f_next = f_next->next;
2442
2443 f_cur->ifd_ptr->isym = file_index;
2444 f_cur->index_ptr->rndx.index = sym_index;
2445
2446 free_forward (f_cur);
2447 }
2448
2449 return;
2450}
2451
2452\f
2453/* Add a procedure to the current file's list of procedures, and record
2454 this is the current procedure. If the assembler created a PDR for
2455 this procedure, use that to initialize the current PDR. */
2456
2457STATIC void
2458add_procedure (func_start, func_end_p1)
2459 const char *func_start; /* 1st byte of func name */
2460 const char *func_end_p1; /* 1st byte after func name */
2461{
2462 register PDR *new_proc_ptr;
2463 register efdr_t *file_ptr = cur_file_ptr;
2464 register varray_t *vp = &file_ptr->procs;
2465 register symint_t value = 0;
2466 register st_t proc_type = st_Proc;
2467 register shash_t *shash_ptr = hash_string (func_start,
2468 func_end_p1 - func_start,
2469 &orig_str_hash[0],
2470 (symint_t *)0);
2471
2472 if (debug)
2473 fputc ('\n', stderr);
2474
2475 if (vp->objects_last_page == vp->objects_per_page)
2476 add_varray_page (vp);
2477
2478 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2479
2480 vp->num_allocated++;
2481
2482
2483 /* Did the assembler create this procedure? If so, get the PDR information. */
2484 cur_oproc_ptr = (PDR *)0;
2485 if (shash_ptr != (shash_t *)0)
2486 {
2487 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2488 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2489
2490 if (old_proc_ptr != (PDR *)0
2491 && sym_ptr != (SYMR *)0
2492 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2493 {
2494 cur_oproc_begin = sym_ptr;
2495 cur_oproc_end = shash_ptr->end_ptr;
2496 value = sym_ptr->value;
2497
2498 cur_oproc_ptr = old_proc_ptr;
2499 proc_type = (st_t)sym_ptr->st;
2500 *new_proc_ptr = *old_proc_ptr; /* initialize */
2501 }
2502 }
2503
2504 if (cur_oproc_ptr == (PDR *)0)
2505 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2506
2507 /* Determine the start of symbols. */
2508 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2509
2510 /* Push the start of the function. */
2511 (void) add_local_symbol (func_start, func_end_p1,
2512 proc_type, sc_Text,
2513 value,
2514 (symint_t)0);
2515}
2516
2517\f
2518/* Add a new filename, and set up all of the file relative
2519 virtual arrays (strings, symbols, aux syms, etc.). Record
2520 where the current file structure lives. */
2521
2522STATIC void
2523add_file (file_start, file_end_p1)
2524 const char *file_start; /* first byte in string */
2525 const char *file_end_p1; /* first byte after string */
2526{
2527 static char zero_bytes[2] = { '\0', '\0' };
2528
2529 register Ptrdiff_t len = file_end_p1 - file_start;
2530 register int first_ch = *file_start;
2531 register efdr_t *file_ptr;
2532
2533 if (debug)
2534 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2535
2536 /* See if the file has already been created. */
2537 for (file_ptr = first_file;
2538 file_ptr != (efdr_t *)0;
2539 file_ptr = file_ptr->next_file)
2540 {
2541 if (first_ch == file_ptr->name[0]
2542 && file_ptr->name[len] == '\0'
2543 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2544 {
2545 cur_file_ptr = file_ptr;
2546 break;
2547 }
2548 }
2549
2550 /* If this is a new file, create it. */
2551 if (file_ptr == (efdr_t *)0)
2552 {
2553 if (file_desc.objects_last_page == file_desc.objects_per_page)
2554 add_varray_page (&file_desc);
2555
2556 file_ptr = cur_file_ptr =
2557 &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2558 *file_ptr = init_file;
2559
2560 file_ptr->file_index = file_desc.num_allocated++;
2561
2562 /* Allocate the string hash table. */
2563 file_ptr->shash_head = (shash_t **) allocate_page ();
2564
2565 /* Make sure 0 byte in string table is null */
2566 add_string (&file_ptr->strings,
2567 &file_ptr->shash_head[0],
2568 &zero_bytes[0],
2569 &zero_bytes[0],
2570 (shash_t **)0);
2571
2572 if (file_end_p1 - file_start > PAGE_USIZE-2)
2573 fatal ("Filename goes over one page boundary.");
2574
2575 /* Push the start of the filename. We assume that the filename
2576 will be stored at string offset 1. */
2577 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2578 (symint_t)0, (symint_t)0);
2579 file_ptr->fdr.rss = 1;
2580 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2581 file_ptr->name_len = file_end_p1 - file_start;
2582
2583 /* Update the linked list of file descriptors. */
2584 *last_file_ptr = file_ptr;
2585 last_file_ptr = &file_ptr->next_file;
2586
2587 /* Add void & int types to the file (void should be first to catch
2588 errant 0's within the index fields). */
2589 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2590 hash_yes,
2591 &cur_file_ptr->thash_head[0]);
2592
2593 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2594 hash_yes,
2595 &cur_file_ptr->thash_head[0]);
2596 }
2597}
2598
2599\f
2600/* Add a stream of random bytes to a varray. */
2601
2602STATIC void
2603add_bytes (vp, input_ptr, nitems)
2604 varray_t *vp; /* virtual array to add too */
2605 char *input_ptr; /* start of the bytes */
2606 Size_t nitems; /* # items to move */
2607{
2608 register Size_t move_items;
2609 register Size_t move_bytes;
2610 register char *ptr;
2611
2612 while (nitems > 0)
2613 {
2614 if (vp->objects_last_page >= vp->objects_per_page)
2615 add_varray_page (vp);
2616
2617 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2618 move_items = vp->objects_per_page - vp->objects_last_page;
2619 if (move_items > nitems)
2620 move_items = nitems;
2621
2622 move_bytes = move_items * vp->object_size;
2623 nitems -= move_items;
2624
2625 if (move_bytes >= 32)
2626 {
2627 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2628 input_ptr += move_bytes;
2629 }
2630 else
2631 {
2632 while (move_bytes-- > 0)
2633 *ptr++ = *input_ptr++;
2634 }
2635 }
2636}
2637
2638\f
2639/* Convert storage class to string. */
2640
2641STATIC char *
2642sc_to_string(storage_class)
2643 sc_t storage_class;
2644{
2645 switch(storage_class)
2646 {
2647 case sc_Nil: return "Nil,";
2648 case sc_Text: return "Text,";
2649 case sc_Data: return "Data,";
2650 case sc_Bss: return "Bss,";
2651 case sc_Register: return "Register,";
2652 case sc_Abs: return "Abs,";
2653 case sc_Undefined: return "Undefined,";
2654 case sc_CdbLocal: return "CdbLocal,";
2655 case sc_Bits: return "Bits,";
2656 case sc_CdbSystem: return "CdbSystem,";
2657 case sc_RegImage: return "RegImage,";
2658 case sc_Info: return "Info,";
2659 case sc_UserStruct: return "UserStruct,";
2660 case sc_SData: return "SData,";
2661 case sc_SBss: return "SBss,";
2662 case sc_RData: return "RData,";
2663 case sc_Var: return "Var,";
2664 case sc_Common: return "Common,";
2665 case sc_SCommon: return "SCommon,";
2666 case sc_VarRegister: return "VarRegister,";
2667 case sc_Variant: return "Variant,";
2668 case sc_SUndefined: return "SUndefined,";
2669 case sc_Init: return "Init,";
2670 case sc_Max: return "Max,";
2671 }
2672
2673 return "???,";
2674}
2675
2676\f
2677/* Convert symbol type to string. */
2678
2679STATIC char *
2680st_to_string(symbol_type)
2681 st_t symbol_type;
2682{
2683 switch(symbol_type)
2684 {
2685 case st_Nil: return "Nil,";
2686 case st_Global: return "Global,";
2687 case st_Static: return "Static,";
2688 case st_Param: return "Param,";
2689 case st_Local: return "Local,";
2690 case st_Label: return "Label,";
2691 case st_Proc: return "Proc,";
2692 case st_Block: return "Block,";
2693 case st_End: return "End,";
2694 case st_Member: return "Member,";
2695 case st_Typedef: return "Typedef,";
2696 case st_File: return "File,";
2697 case st_RegReloc: return "RegReloc,";
2698 case st_Forward: return "Forward,";
2699 case st_StaticProc: return "StaticProc,";
2700 case st_Constant: return "Constant,";
2701 case st_Str: return "String,";
2702 case st_Number: return "Number,";
2703 case st_Expr: return "Expr,";
2704 case st_Type: return "Type,";
2705 case st_Max: return "Max,";
2706 }
2707
2708 return "???,";
2709}
2710
2711\f
2712/* Read a line from standard input, and return the start of the buffer
2713 (which is grows if the line is too big). We split lines at the
2714 semi-colon, and return each logical line independently. */
2715
2716STATIC char *
2717read_line __proto((void))
2718{
2719 static int line_split_p = 0;
2720 register int string_p = 0;
2721 register int comment_p = 0;
2722 register int ch;
2723 register char *ptr;
2724
2725 if (cur_line_start == (char *)0)
2726 { /* allocate initial page */
2727 cur_line_start = (char *) allocate_page ();
2728 cur_line_alloc = PAGE_SIZE;
2729 }
2730
2731 if (!line_split_p)
2732 line_number++;
2733
2734 line_split_p = 0;
2735 cur_line_nbytes = 0;
2736
2737 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2738 {
2739 if (++cur_line_nbytes >= cur_line_alloc-1)
2740 {
2741 register int num_pages = cur_line_alloc / PAGE_SIZE;
2742 register char *old_buffer = cur_line_start;
2743
2744 cur_line_alloc += PAGE_SIZE;
2745 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2746 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2747
2748 ptr = cur_line_start + cur_line_nbytes - 1;
2749 }
2750
2751 if (ch == '\n')
2752 {
2753 *ptr++ = '\n';
2754 *ptr = '\0';
2755 cur_line_ptr = cur_line_start;
2756 return cur_line_ptr;
2757 }
2758
2759 else if (ch == '\0')
2760 error ("Null character found in input");
2761
2762 else if (!comment_p)
2763 {
2764 if (ch == '"')
2765 string_p = !string_p;
2766
2767 else if (ch == '#')
2768 comment_p++;
2769
2770 else if (ch == ';' && !string_p)
2771 {
2772 line_split_p = 1;
2773 *ptr++ = '\n';
2774 *ptr = '\0';
2775 cur_line_ptr = cur_line_start;
2776 return cur_line_ptr;
2777 }
2778 }
2779 }
2780
2781 if (ferror (stdin))
2782 pfatal_with_name (input_name);
2783
2784 cur_line_ptr = (char *)0;
2785 return (char *)0;
2786}
2787
2788\f
2789/* Parse #.begin directives which have a label as the first argument
2790 which gives the location of the start of the block. */
2791
2792STATIC void
2793parse_begin (start)
2794 const char *start; /* start of directive */
2795{
2796 const char *end_p1; /* end of label */
2797 int ch;
2798 shash_t *hash_ptr; /* hash pointer to lookup label */
2799
2800 if (cur_file_ptr == (efdr_t *)0)
2801 {
2802 error ("#.begin directive without a preceding .file directive");
2803 return;
2804 }
2805
2806 if (cur_proc_ptr == (PDR *)0)
2807 {
2808 error ("#.begin directive without a preceding .ent directive");
2809 return;
2810 }
2811
2812 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2813 ;
2814
2815 hash_ptr = hash_string (start,
2816 end_p1 - start,
2817 &orig_str_hash[0],
2818 (symint_t *)0);
2819
2820 if (hash_ptr == (shash_t *)0)
2821 {
2822 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2823 return;
2824 }
2825
2826 if (cur_oproc_begin == (SYMR *)0)
2827 {
2828 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2829 return;
2830 }
2831
2832 (void) add_local_symbol ((const char *)0, (const char *)0,
2833 st_Block, sc_Text,
2834 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2835 (symint_t)0);
2836}
2837
2838\f
2839/* Parse #.bend directives which have a label as the first argument
2840 which gives the location of the end of the block. */
2841
2842STATIC void
2843parse_bend (start)
2844 const char *start; /* start of directive */
2845{
2846 const char *end_p1; /* end of label */
2847 int ch;
2848 shash_t *hash_ptr; /* hash pointer to lookup label */
2849
2850 if (cur_file_ptr == (efdr_t *)0)
2851 {
2852 error ("#.begin directive without a preceding .file directive");
2853 return;
2854 }
2855
2856 if (cur_proc_ptr == (PDR *)0)
2857 {
2858 error ("#.bend directive without a preceding .ent directive");
2859 return;
2860 }
2861
2862 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2863 ;
2864
2865 hash_ptr = hash_string (start,
2866 end_p1 - start,
2867 &orig_str_hash[0],
2868 (symint_t *)0);
2869
2870 if (hash_ptr == (shash_t *)0)
2871 {
2872 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2873 return;
2874 }
2875
2876 if (cur_oproc_begin == (SYMR *)0)
2877 {
2878 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2879 return;
2880 }
2881
2882 (void) add_local_symbol ((const char *)0, (const char *)0,
2883 st_End, sc_Text,
2884 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2885 (symint_t)0);
2886}
2887
2888\f
2889/* Parse #.def directives, which are contain standard COFF subdirectives
2890 to describe the debugging format. These subdirectives include:
2891
2892 .scl specify storage class
2893 .val specify a value
2894 .endef specify end of COFF directives
2895 .type specify the type
2896 .size specify the size of an array
2897 .dim specify an array dimension
2898 .tag specify a tag for a struct, union, or enum. */
2899
2900STATIC void
2901parse_def (name_start)
2902 const char *name_start; /* start of directive */
2903{
2904 const char *dir_start; /* start of current directive*/
2905 const char *dir_end_p1; /* end+1 of current directive*/
2906 const char *arg_start; /* start of current argument */
2907 const char *arg_end_p1; /* end+1 of current argument */
2908 const char *name_end_p1; /* end+1 of label */
2909 const char *tag_start = (const char *)0; /* start of tag name */
2910 const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2911 sc_t storage_class = sc_Nil;
2912 st_t symbol_type = st_Nil;
2913 type_info_t t;
2914 EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2915 int is_function = 0; /* != 0 if function */
2916 symint_t value = 0;
2917 symint_t indx = cur_file_ptr->void_type;
2918 int error_line = 0;
2919 symint_t arg_number;
2920 symint_t temp_array[ N_TQ ];
2921 int arg_was_number;
2922 int ch, i;
2923 Ptrdiff_t len;
2924
2925 static int inside_enumeration = 0; /* is this an enumeration? */
2926
2927
2928 /* Initialize the type information. */
2929 t = type_info_init;
2930
2931
2932 /* Search for the end of the name being defined. */
2933 /* Allow spaces and such in names for G++ templates, which produce stabs
2934 that look like:
2935
2936 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2937
2938 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2939 ;
2940
2941 if (ch == '\0')
2942 {
2943 error_line = __LINE__;
2944 saber_stop ();
2945 goto bomb_out;
2946 }
2947
2948 /* Parse the remaining subdirectives now. */
2949 dir_start = name_end_p1+1;
2950 for (;;)
2951 {
2952 while ((ch = *dir_start) == ' ' || ch == '\t')
2953 ++dir_start;
2954
2955 if (ch != '.')
2956 {
2957 error_line = __LINE__;
2958 saber_stop ();
2959 goto bomb_out;
2960 }
2961
2962 /* Are we done? */
2963 if (dir_start[1] == 'e'
2964 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2965 break;
2966
2967 /* Pick up the subdirective now */
2968 for (dir_end_p1 = dir_start+1;
2969 (ch = *dir_end_p1) != ' ' && ch != '\t';
2970 dir_end_p1++)
2971 {
2972 if (ch == '\0' || isspace (ch))
2973 {
2974 error_line = __LINE__;
2975 saber_stop ();
2976 goto bomb_out;
2977 }
2978 }
2979
2980 /* Pick up the subdirective argument now. */
2981 arg_was_number = arg_number = 0;
2982 arg_end_p1 = (const char *)0;
2983 arg_start = dir_end_p1+1;
2984 ch = *arg_start;
2985 while (ch == ' ' || ch == '\t')
2986 ch = *++arg_start;
2987
2988 if (isdigit (ch) || ch == '-' || ch == '+')
2989 {
2990 int ch2;
2991 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2992 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2993 arg_was_number++;
2994 }
2995
2996 else if (ch == '\0' || isspace (ch))
2997 {
2998 error_line = __LINE__;
2999 saber_stop ();
3000 goto bomb_out;
3001 }
3002
3003 if (!arg_was_number)
3004 {
3005 /* Allow spaces and such in names for G++ templates. */
3006 for (arg_end_p1 = arg_start+1;
3007 (ch = *arg_end_p1) != ';' && ch != '\0';
3008 arg_end_p1++)
3009 ;
3010
3011 if (ch == '\0')
3012 {
3013 error_line = __LINE__;
3014 saber_stop ();
3015 goto bomb_out;
3016 }
3017 }
3018
3019 /* Classify the directives now. */
3020 len = dir_end_p1 - dir_start;
3021 switch (dir_start[1])
3022 {
3023 default:
3024 error_line = __LINE__;
3025 saber_stop ();
3026 goto bomb_out;
3027
3028 case 'd':
3029 if (len == sizeof (".dim")-1
3030 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3031 && arg_was_number)
3032 {
3033 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3034
3035 *t_ptr = arg_number;
3036 while (*arg_end_p1 == ',' && arg_was_number)
3037 {
3038 arg_start = arg_end_p1+1;
3039 ch = *arg_start;
3040 while (ch == ' ' || ch == '\t')
3041 ch = *++arg_start;
3042
3043 arg_was_number = 0;
3044 if (isdigit (ch) || ch == '-' || ch == '+')
3045 {
3046 int ch2;
3047 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3048 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3049 arg_was_number++;
3050
3051 if (t_ptr == &temp_array[0])
3052 {
3053 error_line = __LINE__;
3054 saber_stop ();
3055 goto bomb_out;
3056 }
3057
3058 *--t_ptr = arg_number;
3059 }
3060 }
3061
3062 /* Reverse order of dimensions. */
3063 while (t_ptr <= &temp_array[ N_TQ-1 ])
3064 {
3065 if (t.num_dims >= N_TQ-1)
3066 {
3067 error_line = __LINE__;
3068 saber_stop ();
3069 goto bomb_out;
3070 }
3071
3072 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3073 }
3074 break;
3075 }
3076 else
3077 {
3078 error_line = __LINE__;
3079 saber_stop ();
3080 goto bomb_out;
3081 }
3082
3083
3084 case 's':
3085 if (len == sizeof (".scl")-1
3086 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3087 && arg_was_number
3088 && arg_number < ((symint_t) C_MAX))
3089 {
3090 /* If the symbol is a static or external, we have
3091 already gotten the appropriate type and class, so
3092 make sure we don't override those values. This is
3093 needed because there are some type and classes that
3094 are not in COFF, such as short data, etc. */
3095 if (symbol_type == st_Nil)
3096 {
3097 symbol_type = map_coff_sym_type[arg_number];
3098 storage_class = map_coff_storage [arg_number];
3099 }
3100 break;
3101 }
3102
3103 else if (len == sizeof (".size")-1
3104 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3105 && arg_was_number)
3106 {
3107 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3108
3109 *t_ptr = arg_number;
3110 while (*arg_end_p1 == ',' && arg_was_number)
3111 {
3112 arg_start = arg_end_p1+1;
3113 ch = *arg_start;
3114 while (ch == ' ' || ch == '\t')
3115 ch = *++arg_start;
3116
3117 arg_was_number = 0;
3118 if (isdigit (ch) || ch == '-' || ch == '+')
3119 {
3120 int ch2;
3121 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3122 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3123 arg_was_number++;
3124
3125 if (t_ptr == &temp_array[0])
3126 {
3127 error_line = __LINE__;
3128 saber_stop ();
3129 goto bomb_out;
3130 }
3131
3132 *--t_ptr = arg_number;
3133 }
3134 }
3135
3136 /* Reverse order of sizes. */
3137 while (t_ptr <= &temp_array[ N_TQ-1 ])
3138 {
3139 if (t.num_sizes >= N_TQ-1)
3140 {
3141 error_line = __LINE__;
3142 saber_stop ();
3143 goto bomb_out;
3144 }
3145
3146 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3147 }
3148 break;
3149 }
3150
3151 else
3152 {
3153 error_line = __LINE__;
3154 saber_stop ();
3155 goto bomb_out;
3156 }
3157
3158
3159 case 't':
3160 if (len == sizeof (".type")-1
3161 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3162 && arg_was_number)
3163 {
3164 tq_t *tq_ptr = &t.type_qualifiers[0];
3165
3166 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3167 t.basic_type = map_coff_types [(int)t.orig_type];
3168 for (i = N_TQ-1; i >= 0; i--)
3169 {
3170 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3171 & N_TMASK);
3172
3173 if (dt != (int)DT_NON)
3174 *tq_ptr++ = map_coff_derived_type [dt];
3175 }
3176
3177 /* If this is a function, ignore it, so that we don't get
3178 two entries (one from the .ent, and one for the .def
3179 that precedes it). Save the type information so that
3180 the end block can properly add it after the begin block
3181 index. For MIPS knows what reason, we must strip off
3182 the function type at this point. */
3183 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3184 {
3185 is_function = 1;
3186 tq_ptr[-1] = tq_Nil;
3187 }
3188
3189 break;
3190 }
3191
3192 else if (len == sizeof (".tag")-1
3193 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3194 {
3195 tag_start = arg_start;
3196 tag_end_p1 = arg_end_p1;
3197 break;
3198 }
3199
3200 else
3201 {
3202 error_line = __LINE__;
3203 saber_stop ();
3204 goto bomb_out;
3205 }
3206
3207
3208 case 'v':
3209 if (len == sizeof (".val")-1
3210 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3211 {
3212 if (arg_was_number)
3213 value = arg_number;
3214
3215 /* If the value is not an integer value, it must be the
3216 name of a static or global item. Look up the name in
3217 the original symbol table to pick up the storage
3218 class, symbol type, etc. */
3219 else
3220 {
3221 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3222 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3223
3224 ext_hash_ptr = hash_string (arg_start,
3225 arg_end_p1 - arg_start,
3226 &ext_str_hash[0],
3227 (symint_t *)0);
3228
3229 if (ext_hash_ptr != (shash_t *)0
3230 && ext_hash_ptr->esym_ptr != (EXTR *)0)
3231 eptr = ext_hash_ptr->esym_ptr;
3232
3233 orig_hash_ptr = hash_string (arg_start,
3234 arg_end_p1 - arg_start,
3235 &orig_str_hash[0],
3236 (symint_t *)0);
3237
3238 if ((orig_hash_ptr == (shash_t *)0
3239 || orig_hash_ptr->sym_ptr == (SYMR *)0)
3240 && eptr == (EXTR *)0)
3241 {
3242 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3243 arg_end_p1 - arg_start,
3244 arg_start);
3245 value = 0;
3246 }
3247 else
3248 {
3249 SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3250 && orig_hash_ptr->sym_ptr != (SYMR *)0)
3251 ? orig_hash_ptr->sym_ptr
3252 : &eptr->asym;
3253
3254 symbol_type = (st_t) ptr->st;
3255 storage_class = (sc_t) ptr->sc;
3256 value = ptr->value;
3257 }
3258 }
3259 break;
3260 }
3261 else
3262 {
3263 error_line = __LINE__;
3264 saber_stop ();
3265 goto bomb_out;
3266 }
3267 }
3268
3269 /* Set up to find next directive. */
3270 dir_start = arg_end_p1 + 1;
3271 }
3272
3273
3274 t.extra_sizes = (tag_start != (char *)0);
3275 if (t.num_dims > 0)
3276 {
3277 int diff = t.num_dims - t.num_sizes;
3278 int i = t.num_dims - 1;
3279 int j;
3280
3281 if (t.num_sizes != 1 || diff < 0)
3282 {
3283 error_line = __LINE__;
3284 saber_stop ();
3285 goto bomb_out;
3286 }
3287
3288 /* If this is an array, make sure the same number of dimensions
3289 and sizes were passed, creating extra sizes for multiply
3290 dimensioned arrays if not passed. */
3291
3292 t.extra_sizes = 0;
3293 if (diff)
3294 {
3295 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3296 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3297
3298 t.num_sizes = i + 1;
3299 for ( i--; i >= 0; i-- )
3300 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3301 }
3302 }
3303
3304 else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3305 { /* Is this a bitfield? This is indicated by a structure memeber
3306 having a size field that isn't an array. */
3307
3308 t.bitfield = 1;
3309 }
3310
3311
3312 /* Except for enumeration members & begin/ending of scopes, put the
3313 type word in the aux. symbol table. */
3314
3315 if (symbol_type == st_Block || symbol_type == st_End)
3316 indx = 0;
3317
3318 else if (inside_enumeration)
3319 indx = cur_file_ptr->void_type;
3320
3321 else
3322 {
3323 if (t.basic_type == bt_Struct
3324 || t.basic_type == bt_Union
3325 || t.basic_type == bt_Enum)
3326 {
3327 if (tag_start == (char *)0)
3328 {
3329 error ("No tag specified for %.*s",
3330 name_end_p1 - name_start,
3331 name_start);
3332 return;
3333 }
3334
3335 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3336 t.basic_type);
3337 }
3338
3339 if (is_function)
3340 {
3341 last_func_type_info = t;
3342 last_func_eptr = eptr;
3343 return;
3344 }
3345
3346 indx = add_aux_sym_tir (&t,
3347 hash_yes,
3348 &cur_file_ptr->thash_head[0]);
3349 }
3350
3351
3352 /* If this is an external or static symbol, update the appropriate
3353 external symbol. */
3354
3355 if (eptr != (EXTR *)0
3356 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3357 {
3358 eptr->ifd = cur_file_ptr->file_index;
3359 eptr->asym.index = indx;
3360 }
3361
3362
3363 /* Do any last minute adjustments that are necessary. */
3364 switch (symbol_type)
3365 {
3366 default:
3367 break;
3368
3369
3370 /* For the beginning of structs, unions, and enumerations, the
3371 size info needs to be passed in the value field. */
3372
3373 case st_Block:
3374 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3375 {
3376 error_line = __LINE__;
3377 saber_stop ();
3378 goto bomb_out;
3379 }
3380
3381 else
3382 value = t.sizes[0];
3383
3384 inside_enumeration = (t.orig_type == T_ENUM);
3385 break;
3386
3387
3388 /* For the end of structs, unions, and enumerations, omit the
3389 name which is always ".eos". This needs to be done last, so
3390 that any error reporting above gives the correct name. */
3391
3392 case st_End:
3393 name_start = name_end_p1 = (const char *)0;
3394 value = inside_enumeration = 0;
3395 break;
3396
3397
3398 /* Members of structures and unions that aren't bitfields, need
3399 to adjust the value from a byte offset to a bit offset.
3400 Members of enumerations do not have the value adjusted, and
3401 can be distinguished by indx == indexNil. For enumerations,
3402 update the maximum enumeration value. */
3403
3404 case st_Member:
3405 if (!t.bitfield && !inside_enumeration)
3406 value *= 8;
3407
3408 break;
3409 }
3410
3411
3412 /* Add the symbol, except for global symbols outside of functions,
3413 for which the external symbol table is fine enough. */
3414
3415 if (eptr == (EXTR *)0
3416 || eptr->asym.st == (int)st_Nil
3417 || cur_proc_ptr != (PDR *)0)
3418 {
3419 symint_t isym = add_local_symbol (name_start, name_end_p1,
3420 symbol_type, storage_class,
3421 value,
3422 indx);
3423
3424 /* deal with struct, union, and enum tags. */
3425 if (symbol_type == st_Block)
3426 {
3427 /* Create or update the tag information. */
3428 tag_t *tag_ptr = get_tag (name_start,
3429 name_end_p1,
3430 isym,
3431 t.basic_type);
3432
3433 /* If there are any forward references, fill in the appropriate
3434 file and symbol indexes. */
3435
3436 symint_t file_index = cur_file_ptr->file_index;
3437 forward_t *f_next = tag_ptr->forward_ref;
3438 forward_t *f_cur;
3439
3440 while (f_next != (forward_t *)0)
3441 {
3442 f_cur = f_next;
3443 f_next = f_next->next;
3444
3445 f_cur->ifd_ptr->isym = file_index;
3446 f_cur->index_ptr->rndx.index = isym;
3447
3448 free_forward (f_cur);
3449 }
3450
3451 tag_ptr->forward_ref = (forward_t *)0;
3452 }
3453 }
3454
3455 /* Normal return */
3456 return;
3457
3458 /* Error return, issue message. */
3459bomb_out:
3460 if (error_line)
3461 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3462 else
3463 error ("compiler error, badly formed #.def");
3464
3465 return;
3466}
3467
3468\f
3469/* Parse .end directives. */
3470
3471STATIC void
3472parse_end (start)
3473 const char *start; /* start of directive */
3474{
3475 register const char *start_func, *end_func_p1;
3476 register int ch;
3477 register symint_t value;
3478 register FDR *orig_fdr;
3479
3480 if (cur_file_ptr == (efdr_t *)0)
3481 {
3482 error (".end directive without a preceding .file directive");
3483 return;
3484 }
3485
3486 if (cur_proc_ptr == (PDR *)0)
3487 {
3488 error (".end directive without a preceding .ent directive");
3489 return;
3490 }
3491
3492 /* Get the function name, skipping whitespace. */
3493 for (start_func = start; isspace (*start_func); start_func++)
3494 ;
3495
3496 ch = *start_func;
3497 if (!IS_ASM_IDENT (ch))
3498 {
3499 error (".end directive has no name");
3500 return;
3501 }
3502
3503 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3504 ;
3505
3506
3507 /* Get the value field for creating the end from the original object
3508 file (which we find by locating the procedure start, and using the
3509 pointer to the end+1 block and backing up. The index points to a
3510 two word aux. symbol, whose first word is the index of the end
3511 symbol, and the second word is the type of the function return
3512 value. */
3513
3514 orig_fdr = cur_file_ptr->orig_fdr;
3515 value = 0;
3516 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3517 value = cur_oproc_end->value;
3518
3519 else
3520 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3521
3522 (void) add_local_symbol (start_func, end_func_p1,
3523 st_End, sc_Text,
3524 value,
3525 (symint_t)0);
3526
3527 cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3528}
3529
3530\f
3531/* Parse .ent directives. */
3532
3533STATIC void
3534parse_ent (start)
3535 const char *start; /* start of directive */
3536{
3537 register const char *start_func, *end_func_p1;
3538 register int ch;
3539
3540 if (cur_file_ptr == (efdr_t *)0)
3541 {
3542 error (".ent directive without a preceding .file directive");
3543 return;
3544 }
3545
3546 if (cur_proc_ptr != (PDR *)0)
3547 {
3548 error ("second .ent directive found before .end directive");
3549 return;
3550 }
3551
3552 for (start_func = start; isspace (*start_func); start_func++)
3553 ;
3554
3555 ch = *start_func;
3556 if (!IS_ASM_IDENT (ch))
3557 {
3558 error (".ent directive has no name");
3559 return;
3560 }
3561
3562 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3563 ;
3564
3565 (void) add_procedure (start_func, end_func_p1);
3566}
3567
3568\f
3569/* Parse .file directives. */
3570
3571STATIC void
3572parse_file (start)
3573 const char *start; /* start of directive */
3574{
3575 char *p;
3576 register char *start_name, *end_name_p1;
3577
3578 (void) strtol (start, &p, 0);
3579 if (start == p
3580 || (start_name = local_index (p, '"')) == (char *)0
3581 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
3582 {
3583 error ("Illegal .file directive");
3584 return;
3585 }
3586
3587 if (cur_proc_ptr != (PDR *)0)
3588 {
3589 error ("No way to handle .file within .ent/.end section");
3590 return;
3591 }
3592
3593 add_file (start_name, end_name_p1);
3594}
3595
3596\f
3597/* Make sure the @stabs symbol is emitted. */
3598
3599static void
3600mark_stabs (start)
3601 const char *start; /* Start of directive (ignored) */
3602{
3603 if (!stabs_seen)
3604 {
3605 /* Add a dummy @stabs dymbol. */
3606 stabs_seen = 1;
3607 (void) add_local_symbol (stabs_symbol,
3608 stabs_symbol + sizeof (stabs_symbol),
3609 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3610
3611 }
3612}
3613
3614\f
3615/* Parse .stabs directives.
3616
3617 .stabs directives have five fields:
3618 "string" a string, encoding the type information.
3619 code a numeric code, defined in <stab.h>
3620 0 a zero
3621 0 a zero or line number
3622 value a numeric value or an address.
3623
3624 If the value is relocatable, we transform this into:
3625 iss points as an index into string space
3626 value value from lookup of the name
3627 st st from lookup of the name
3628 sc sc from lookup of the name
3629 index code|CODE_MASK
3630
3631 If the value is not relocatable, we transform this into:
3632 iss points as an index into string space
3633 value value
3634 st st_Nil
3635 sc sc_Nil
3636 index code|CODE_MASK
3637
3638 .stabn directives have four fields (string is null):
3639 code a numeric code, defined in <stab.h>
3640 0 a zero
3641 0 a zero or a line number
3642 value a numeric value or an address. */
3643
3644STATIC void
3645parse_stabs_common (string_start, string_end, rest)
3646 const char *string_start; /* start of string or NULL */
3647 const char *string_end; /* end+1 of string or NULL */
3648 const char *rest; /* rest of the directive. */
3649{
3650 efdr_t *save_file_ptr = cur_file_ptr;
3651 symint_t code;
3652 symint_t value;
3653 char *p;
3654 st_t st;
3655 sc_t sc;
3656 int ch;
3657
3658 if (stabs_seen == 0)
3659 mark_stabs ("");
3660
3661 /* Read code from stabs. */
3662 if (!isdigit (*rest))
3663 {
3664 error ("Illegal .stabs/.stabn directive, code is non-numeric");
3665 return;
3666 }
3667
3668 code = strtol (rest, &p, 0);
3669
3670 /* Line number stabs are handled differently, since they have two values,
3671 the line number and the address of the label. We use the index field
3672 (aka code) to hold the line number, and the value field to hold the
3673 address. The symbol type is st_Label, which should be different from
3674 the other stabs, so that gdb can recognize it. */
3675
3676 if (code == (int)N_SLINE)
3677 {
3678 SYMR *sym_ptr, dummy_symr;
3679 shash_t *shash_ptr;
3680
3681 /* Skip ,0, */
3682 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3683 {
3684 error ("Illegal line number .stabs/.stabn directive");
3685 return;
3686 }
3687
3688 code = strtol (p+3, &p, 0);
3689 ch = *++p;
3690 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3691 {
3692 error ("Illegal line number .stabs/.stabn directive");
3693 return;
3694 }
3695
3696 dummy_symr.index = code;
3697 if (dummy_symr.index != code)
3698 {
3699 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3700 code);
3701
3702 return;
3703 }
3704
3705 shash_ptr = hash_string (p,
3706 strlen (p) - 1,
3707 &orig_str_hash[0],
3708 (symint_t *)0);
3709
3710 if (shash_ptr == (shash_t *)0
3711 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3712 {
3713 error ("Illegal .stabs/.stabn directive, value not found");
3714 return;
3715 }
3716
3717 if ((st_t) sym_ptr->st != st_Label)
3718 {
3719 error ("Illegal line number .stabs/.stabn directive");
3720 return;
3721 }
3722
3723 st = st_Label;
3724 sc = (sc_t) sym_ptr->sc;
3725 value = sym_ptr->value;
3726 }
3727 else
3728 {
3729 /* Skip ,0,0, */
3730 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || p[3] != '0' || p[4] != ',')
3731 {
3732 error ("Illegal .stabs/.stabn directive, mandatory 0 isn't");
3733 return;
3734 }
3735
3736 p += 5;
3737 ch = *p;
3738 if (!IS_ASM_IDENT (ch) && ch != '-')
3739 {
3740 error ("Illegal .stabs/.stabn directive, bad character");
3741 return;
3742 }
3743
3744 if (isdigit (ch) || ch == '-')
3745 {
3746 st = st_Nil;
3747 sc = sc_Nil;
3748 value = strtol (p, &p, 0);
3749 if (*p != '\n')
3750 {
3751 error ("Illegal .stabs/.stabn directive, stuff after numeric value");
3752 return;
3753 }
3754 }
3755 else if (!IS_ASM_IDENT (ch))
3756 {
3757 error ("Illegal .stabs/.stabn directive, bad character");
3758 return;
3759 }
3760 else
3761 {
3762 SYMR *sym_ptr;
3763 shash_t *shash_ptr;
3764 const char *start, *end_p1;
3765
3766 start = p;
3767 if ((end_p1 = strchr (start, '+')) == (char *)0)
3768 {
3769 if ((end_p1 = strchr (start, '-')) == (char *)0)
3770 end_p1 = start + strlen(start) - 1;
3771 }
3772
3773 shash_ptr = hash_string (start,
3774 end_p1 - start,
3775 &orig_str_hash[0],
3776 (symint_t *)0);
3777
3778 if (shash_ptr == (shash_t *)0
3779 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3780 {
3781 shash_ptr = hash_string (start,
3782 end_p1 - start,
3783 &ext_str_hash[0],
3784 (symint_t *)0);
3785
3786 if (shash_ptr == (shash_t *)0
3787 || shash_ptr->esym_ptr == (EXTR *)0)
3788 {
3789 error ("Illegal .stabs/.stabn directive, value not found");
3790 return;
3791 }
3792 else
3793 sym_ptr = &(shash_ptr->esym_ptr->asym);
3794 }
3795
3796 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3797 if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3798 {
3799 sc = scNil;
3800 st = stNil;
3801 }
3802 else
3803 {
3804 sc = (sc_t) sym_ptr->sc;
3805 st = (st_t) sym_ptr->st;
3806 }
3807 value = sym_ptr->value;
3808
3809 ch = *end_p1++;
3810 if (ch != '\n')
3811 {
3812 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3813 || ((ch != '+') && (ch != '-')))
3814 {
3815 error ("Illegal .stabs/.stabn directive, badly formed value");
3816 return;
3817 }
3818 if (ch == '+')
3819 value += strtol (end_p1, &p, 0);
3820 else if (ch == '-')
3821 value -= strtol (end_p1, &p, 0);
3822
3823 if (*p != '\n')
3824 {
3825 error ("Illegal .stabs/.stabn directive, stuff after numeric value");
3826 return;
3827 }
3828 }
3829 }
3830 code = MIPS_MARK_STAB(code);
3831 }
3832
3833 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3834 /* Restore normal file type. */
3835 cur_file_ptr = save_file_ptr;
3836}
3837
3838
3839STATIC void
3840parse_stabs (start)
3841 const char *start; /* start of directive */
3842{
3843 const char *end = local_index (start+1, '"');
3844
3845 if (*start != '"' || end == (const char *)0 || end[1] != ',')
3846 {
3847 error ("Illegal .stabs directive, no string");
3848 return;
3849 }
3850
3851 parse_stabs_common (start+1, end, end+2);
3852}
3853
3854
3855STATIC void
3856parse_stabn (start)
3857 const char *start; /* start of directive */
3858{
3859 parse_stabs_common ((const char *)0, (const char *)0, start);
3860}
3861
3862\f
3863/* Parse the input file, and write the lines to the output file
3864 if needed. */
3865
3866STATIC void
3867parse_input __proto((void))
3868{
3869 register char *p;
3870 register int i;
3871 register thead_t *ptag_head;
3872 register tag_t *ptag;
3873 register tag_t *ptag_next;
3874
3875 if (debug)
3876 fprintf (stderr, "\tinput\n");
3877
3878 /* Add a dummy scope block around the entire compilation unit for
3879 structures defined outside of blocks. */
3880 ptag_head = allocate_thead ();
3881 ptag_head->first_tag = 0;
3882 ptag_head->prev = cur_tag_head;
3883 cur_tag_head = ptag_head;
3884
3885 while ((p = read_line ()) != (char *)0)
3886 {
3887 /* Skip leading blanks */
3888 while (isspace (*p))
3889 p++;
3890
3891 /* See if it's a directive we handle. If so, dispatch handler. */
3892 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3893 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3894 && isspace (p[pseudo_ops[i].len]))
3895 {
3896 p += pseudo_ops[i].len; /* skip to first argument */
3897 while (isspace (*p))
3898 p++;
3899
3900 (*pseudo_ops[i].func)( p );
3901 break;
3902 }
3903 }
3904
3905 /* Process any tags at global level. */
3906 ptag_head = cur_tag_head;
3907 cur_tag_head = ptag_head->prev;
3908
3909 for (ptag = ptag_head->first_tag;
3910 ptag != (tag_t *)0;
3911 ptag = ptag_next)
3912 {
3913 if (ptag->forward_ref != (forward_t *)0)
3914 add_unknown_tag (ptag);
3915
3916 ptag_next = ptag->same_block;
3917 ptag->hash_ptr->tag_ptr = ptag->same_name;
3918 free_tag (ptag);
3919 }
3920
3921 free_thead (ptag_head);
3922
3923}
3924
3925\f
3926/* Update the global headers with the final offsets in preparation
3927 to write out the .T file. */
3928
3929STATIC void
3930update_headers __proto((void))
3931{
3932 register symint_t i;
3933 register efdr_t *file_ptr;
3934
3935 /* Set up the symbolic header. */
3936 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3937 symbolic_header.magic = orig_sym_hdr.magic;
3938 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3939
3940 /* Set up global counts. */
3941 symbolic_header.issExtMax = ext_strings.num_allocated;
3942 symbolic_header.idnMax = dense_num.num_allocated;
3943 symbolic_header.ifdMax = file_desc.num_allocated;
3944 symbolic_header.iextMax = ext_symbols.num_allocated;
3945 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3946 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3947 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3948 symbolic_header.crfd = orig_sym_hdr.crfd;
3949
3950
3951 /* Loop through each file, figuring out how many local syms,
3952 line numbers, etc. there are. Also, put out end symbol
3953 for the filename. */
3954
3955 for (file_ptr = first_file;
3956 file_ptr != (efdr_t *)0;
3957 file_ptr = file_ptr->next_file)
3958 {
3959 cur_file_ptr = file_ptr;
3960 (void) add_local_symbol ((const char *)0, (const char *)0,
3961 st_End, sc_Text,
3962 (symint_t)0,
3963 (symint_t)0);
3964
3965 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3966 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3967 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3968
3969 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3970 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3971 symbolic_header.isymMax += file_ptr->fdr.csym;
3972
3973 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3974 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3975 symbolic_header.iauxMax += file_ptr->fdr.caux;
3976
3977 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3978 file_ptr->fdr.issBase = symbolic_header.issMax;
3979 symbolic_header.issMax += file_ptr->fdr.cbSs;
3980 }
3981
3982
3983 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3984 if (i > 0)
3985 {
3986 symbolic_header.cbLineOffset = file_offset;
3987 file_offset += i;
3988 }
3989
3990 i = symbolic_header.ioptMax; /* optimization symbols */
3991 if (((long) i) > 0)
3992 {
3993 symbolic_header.cbOptOffset = file_offset;
3994 file_offset += i * sizeof (OPTR);
3995 }
3996
3997 i = symbolic_header.idnMax; /* dense numbers */
3998 if (i > 0)
3999 {
4000 symbolic_header.cbDnOffset = file_offset;
4001 file_offset += i * sizeof (DNR);
4002 }
4003
4004 i = symbolic_header.ipdMax; /* procedure tables */
4005 if (i > 0)
4006 {
4007 symbolic_header.cbPdOffset = file_offset;
4008 file_offset += i * sizeof (PDR);
4009 }
4010
4011 i = symbolic_header.isymMax; /* local symbols */
4012 if (i > 0)
4013 {
4014 symbolic_header.cbSymOffset = file_offset;
4015 file_offset += i * sizeof (SYMR);
4016 }
4017
4018 i = symbolic_header.iauxMax; /* aux syms. */
4019 if (i > 0)
4020 {
4021 symbolic_header.cbAuxOffset = file_offset;
4022 file_offset += i * sizeof (TIR);
4023 }
4024
4025 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4026 if (i > 0)
4027 {
4028 symbolic_header.cbSsOffset = file_offset;
4029 file_offset += i;
4030 }
4031
4032 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4033 if (i > 0)
4034 {
4035 symbolic_header.cbSsExtOffset = file_offset;
4036 file_offset += i;
4037 }
4038
4039 i = symbolic_header.ifdMax; /* file tables */
4040 if (i > 0)
4041 {
4042 symbolic_header.cbFdOffset = file_offset;
4043 file_offset += i * sizeof (FDR);
4044 }
4045
4046 i = symbolic_header.crfd; /* relative file descriptors */
4047 if (i > 0)
4048 {
4049 symbolic_header.cbRfdOffset = file_offset;
4050 file_offset += i * sizeof (symint_t);
4051 }
4052
4053 i = symbolic_header.iextMax; /* external symbols */
4054 if (i > 0)
4055 {
4056 symbolic_header.cbExtOffset = file_offset;
4057 file_offset += i * sizeof (EXTR);
4058 }
4059}
4060
4061\f
4062/* Write out a varray at a given location. */
4063
4064STATIC void
4065write_varray (vp, offset, str)
4066 varray_t *vp; /* virtual array */
4067 off_t offset; /* offset to write varray to */
4068 const char *str; /* string to print out when tracing */
4069{
4070 int num_write, sys_write;
4071 vlinks_t *ptr;
4072
4073 if (vp->num_allocated == 0)
4074 return;
4075
4076 if (debug)
4077 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4078 vp, offset, vp->num_allocated * vp->object_size, str);
4079
4080 if (file_offset != offset
4081 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4082 pfatal_with_name (object_name);
4083
4084 for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4085 {
4086 num_write = (ptr->next == (vlinks_t *)0)
4087 ? vp->objects_last_page * vp->object_size
4088 : vp->objects_per_page * vp->object_size;
4089
4090 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4091 if (sys_write <= 0)
4092 pfatal_with_name (object_name);
4093
4094 else if (sys_write != num_write)
4095 fatal ("Wrote %d bytes to %s, system returned %d",
4096 num_write,
4097 object_name,
4098 sys_write);
4099
4100 file_offset += num_write;
4101 }
4102}
4103
4104\f
4105/* Write out the symbol table in the object file. */
4106
4107STATIC void
4108write_object __proto((void))
4109{
4110 int sys_write;
4111 efdr_t *file_ptr;
4112 off_t offset;
4113
4114 if (debug)
4115 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4116 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4117 "symbolic header");
4118
4119 sys_write = fwrite ((PTR_T) &symbolic_header,
4120 1,
4121 sizeof (symbolic_header),
4122 object_stream);
4123
4124 if (sys_write < 0)
4125 pfatal_with_name (object_name);
4126
4127 else if (sys_write != sizeof (symbolic_header))
4128 fatal ("Wrote %d bytes to %s, system returned %d",
4129 sizeof (symbolic_header),
4130 object_name,
4131 sys_write);
4132
4133
4134 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4135
4136 if (symbolic_header.cbLine > 0) /* line numbers */
4137 {
4138 long sys_write;
4139
4140 if (file_offset != symbolic_header.cbLineOffset
4141 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4142 pfatal_with_name (object_name);
4143
4144 if (debug)
4145 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4146 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4147 symbolic_header.cbLine, "Line numbers");
4148
4149 sys_write = fwrite ((PTR_T) orig_linenum,
4150 1,
4151 symbolic_header.cbLine,
4152 object_stream);
4153
4154 if (sys_write <= 0)
4155 pfatal_with_name (object_name);
4156
4157 else if (sys_write != symbolic_header.cbLine)
4158 fatal ("Wrote %d bytes to %s, system returned %d",
4159 symbolic_header.cbLine,
4160 object_name,
4161 sys_write);
4162
4163 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4164 }
4165
4166 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4167 {
4168 long sys_write;
4169 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4170
4171 if (file_offset != symbolic_header.cbOptOffset
4172 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4173 pfatal_with_name (object_name);
4174
4175 if (debug)
4176 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4177 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4178 num_write, "Optimizer symbols");
4179
4180 sys_write = fwrite ((PTR_T) orig_opt_syms,
4181 1,
4182 num_write,
4183 object_stream);
4184
4185 if (sys_write <= 0)
4186 pfatal_with_name (object_name);
4187
4188 else if (sys_write != num_write)
4189 fatal ("Wrote %d bytes to %s, system returned %d",
4190 num_write,
4191 object_name,
4192 sys_write);
4193
4194 file_offset = symbolic_header.cbOptOffset + num_write;
4195 }
4196
4197 if (symbolic_header.idnMax > 0) /* dense numbers */
4198 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4199
4200 if (symbolic_header.ipdMax > 0) /* procedure tables */
4201 {
4202 offset = symbolic_header.cbPdOffset;
4203 for (file_ptr = first_file;
4204 file_ptr != (efdr_t *)0;
4205 file_ptr = file_ptr->next_file)
4206 {
4207 write_varray (&file_ptr->procs, offset, "Procedure tables");
4208 offset = file_offset;
4209 }
4210 }
4211
4212 if (symbolic_header.isymMax > 0) /* local symbols */
4213 {
4214 offset = symbolic_header.cbSymOffset;
4215 for (file_ptr = first_file;
4216 file_ptr != (efdr_t *)0;
4217 file_ptr = file_ptr->next_file)
4218 {
4219 write_varray (&file_ptr->symbols, offset, "Local symbols");
4220 offset = file_offset;
4221 }
4222 }
4223
4224 if (symbolic_header.iauxMax > 0) /* aux symbols */
4225 {
4226 offset = symbolic_header.cbAuxOffset;
4227 for (file_ptr = first_file;
4228 file_ptr != (efdr_t *)0;
4229 file_ptr = file_ptr->next_file)
4230 {
4231 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4232 offset = file_offset;
4233 }
4234 }
4235
4236 if (symbolic_header.issMax > 0) /* local strings */
4237 {
4238 offset = symbolic_header.cbSsOffset;
4239 for (file_ptr = first_file;
4240 file_ptr != (efdr_t *)0;
4241 file_ptr = file_ptr->next_file)
4242 {
4243 write_varray (&file_ptr->strings, offset, "Local strings");
4244 offset = file_offset;
4245 }
4246 }
4247
4248 if (symbolic_header.issExtMax > 0) /* external strings */
4249 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4250
4251 if (symbolic_header.ifdMax > 0) /* file tables */
4252 {
4253 offset = symbolic_header.cbFdOffset;
4254 if (file_offset != offset
4255 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4256 pfatal_with_name (object_name);
4257
4258 file_offset = offset;
4259 for (file_ptr = first_file;
4260 file_ptr != (efdr_t *)0;
4261 file_ptr = file_ptr->next_file)
4262 {
4263 if (debug)
4264 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4265 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4266
4267 sys_write = fwrite (&file_ptr->fdr,
4268 1,
4269 sizeof (FDR),
4270 object_stream);
4271
4272 if (sys_write < 0)
4273 pfatal_with_name (object_name);
4274
4275 else if (sys_write != sizeof (FDR))
4276 fatal ("Wrote %d bytes to %s, system returned %d",
4277 sizeof (FDR),
4278 object_name,
4279 sys_write);
4280
4281 file_offset = offset += sizeof (FDR);
4282 }
4283 }
4284
4285 if (symbolic_header.crfd > 0) /* relative file descriptors */
4286 {
4287 long sys_write;
4288 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4289
4290 if (file_offset != symbolic_header.cbRfdOffset
4291 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4292 pfatal_with_name (object_name);
4293
4294 if (debug)
4295 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4296 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4297 num_write, "Relative file descriptors");
4298
4299 sys_write = fwrite (orig_rfds,
4300 1,
4301 num_write,
4302 object_stream);
4303
4304 if (sys_write <= 0)
4305 pfatal_with_name (object_name);
4306
4307 else if (sys_write != num_write)
4308 fatal ("Wrote %d bytes to %s, system returned %d",
4309 num_write,
4310 object_name,
4311 sys_write);
4312
4313 file_offset = symbolic_header.cbRfdOffset + num_write;
4314 }
4315
4316 if (symbolic_header.issExtMax > 0) /* external symbols */
4317 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4318
4319 if (fclose (object_stream) != 0)
4320 pfatal_with_name (object_name);
4321}
4322
4323\f
4324/* Read some bytes at a specified location, and return a pointer. */
4325
4326STATIC page_t *
4327read_seek (size, offset, str)
4328 Size_t size; /* # bytes to read */
4329 off_t offset; /* offset to read at */
4330 const char *str; /* name for tracing */
4331{
4332 page_t *ptr;
4333 long sys_read = 0;
4334
4335 if (size == 0) /* nothing to read */
4336 return (page_t *)0;
4337
4338 if (debug)
4339 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4340 size, offset, file_offset, str);
4341
4342#ifndef MALLOC_CHECK
4343 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4344#else
4345 ptr = (page_t *) xcalloc (1, size);
4346#endif
4347
4348 /* If we need to seek, and the distance is nearby, just do some reads,
4349 to speed things up. */
4350 if (file_offset != offset)
4351 {
4352 symint_t difference = offset - file_offset;
4353
4354 if (difference < 8)
4355 {
4356 char small_buffer[8];
4357
4358 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4359 if (sys_read <= 0)
4360 pfatal_with_name (obj_in_name);
4361
4362 if (sys_read != difference)
4363 fatal ("Wanted to read %d bytes from %s, system returned %d",
4364 size,
4365 obj_in_name,
4366 sys_read);
4367 }
4368 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4369 pfatal_with_name (obj_in_name);
4370 }
4371
4372 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4373 if (sys_read <= 0)
4374 pfatal_with_name (obj_in_name);
4375
4376 if (sys_read != size)
4377 fatal ("Wanted to read %d bytes from %s, system returned %d",
4378 size,
4379 obj_in_name,
4380 sys_read);
4381
4382 file_offset = offset + size;
4383
4384 if (file_offset > max_file_offset)
4385 max_file_offset = file_offset;
4386
4387 return ptr;
4388}
4389
4390\f
4391/* Read the existing object file (and copy to the output object file
4392 if it is different from the input object file), and remove the old
4393 symbol table. */
4394
4395STATIC void
4396copy_object __proto((void))
4397{
4398 char buffer[ PAGE_SIZE ];
4399 register int sys_read;
4400 register int remaining;
4401 register int num_write;
4402 register int sys_write;
4403 register int fd, es;
4404 register int delete_ifd = 0;
4405 register int *remap_file_number;
4406 struct stat stat_buf;
4407
4408 if (debug)
4409 fprintf (stderr, "\tcopy\n");
4410
4411 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4412 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4413 pfatal_with_name (obj_in_name);
4414
4415 sys_read = fread ((PTR_T) &orig_file_header,
4416 1,
4417 sizeof (struct filehdr),
4418 obj_in_stream);
4419
4420 if (sys_read < 0)
4421 pfatal_with_name (obj_in_name);
4422
4423 else if (sys_read == 0 && feof (obj_in_stream))
4424 return; /* create a .T file sans file header */
4425
4426 else if (sys_read < sizeof (struct filehdr))
4427 fatal ("Wanted to read %d bytes from %s, system returned %d",
4428 sizeof (struct filehdr),
4429 obj_in_name,
4430 sys_read);
4431
4432
4433 if (orig_file_header.f_nsyms != sizeof (HDRR))
4434 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4435 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4436
4437
4438 /* Read in the current symbolic header. */
4439 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4440 pfatal_with_name (input_name);
4441
4442 sys_read = fread ((PTR_T) &orig_sym_hdr,
4443 1,
4444 sizeof (orig_sym_hdr),
4445 obj_in_stream);
4446
4447 if (sys_read < 0)
4448 pfatal_with_name (object_name);
4449
4450 else if (sys_read < sizeof (struct filehdr))
4451 fatal ("Wanted to read %d bytes from %s, system returned %d",
4452 sizeof (struct filehdr),
4453 obj_in_name,
4454 sys_read);
4455
4456
4457 /* Read in each of the sections if they exist in the object file.
4458 We read things in in the order the mips assembler creates the
4459 sections, so in theory no extra seeks are done.
4460
4461 For simplicity sake, round each read up to a page boundary,
4462 we may want to revisit this later.... */
4463
4464 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4465
4466 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4467 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4468 orig_sym_hdr.cbLineOffset,
4469 "Line numbers");
4470
4471 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4472 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4473 orig_sym_hdr.cbPdOffset,
4474 "Procedure tables");
4475
4476 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4477 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4478 orig_sym_hdr.cbSymOffset,
4479 "Local symbols");
4480
4481 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4482 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4483 orig_sym_hdr.cbAuxOffset,
4484 "Aux. symbols");
4485
4486 if (orig_sym_hdr.issMax > 0) /* local strings */
4487 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4488 orig_sym_hdr.cbSsOffset,
4489 "Local strings");
4490
4491 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4492 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4493 orig_sym_hdr.cbSsExtOffset,
4494 "External strings");
4495
4496 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4497 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4498 orig_sym_hdr.cbFdOffset,
4499 "File tables");
4500
4501 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4502 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4503 orig_sym_hdr.cbRfdOffset,
4504 "Relative file descriptors");
4505
4506 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4507 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4508 orig_sym_hdr.cbExtOffset,
4509 "External symbols");
4510
4511 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4512 {
4513 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4514 orig_sym_hdr.cbDnOffset,
4515 "Dense numbers");
4516
4517 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4518 }
4519
4520 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4521 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4522 orig_sym_hdr.cbOptOffset,
4523 "Optimizer symbols");
4524
4525
4526
4527 /* Abort if the symbol table is not last. */
4528 if (max_file_offset != stat_buf.st_size)
4529 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4530 max_file_offset,
4531 stat_buf.st_size);
4532
4533
4534 /* If the first original file descriptor is a dummy which the assembler
4535 put out, but there are no symbols in it, skip it now. */
4536 if (orig_sym_hdr.ifdMax > 1
4537 && orig_files->csym == 2
4538 && orig_files->caux == 0)
4539 {
4540 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4541 char *suffix = local_rindex (filename, '.');
4542
4543 if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4544 delete_ifd = 1;
4545 }
4546
4547
4548 /* Create array to map original file numbers to the new file numbers
4549 (in case there are duplicate filenames, we collapse them into one
4550 file section, the MIPS assembler may or may not collapse them). */
4551
4552 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4553
4554 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4555 {
4556 register FDR *fd_ptr = ORIG_FILES (fd);
4557 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4558
4559 /* file support itself. */
4560 add_file (filename, filename + strlen (filename));
4561 remap_file_number[fd] = cur_file_ptr->file_index;
4562 }
4563
4564 if (delete_ifd > 0) /* just in case */
4565 remap_file_number[0] = remap_file_number[1];
4566
4567
4568 /* Loop, adding each of the external symbols. These must be in
4569 order or otherwise we would have to change the relocation
4570 entries. We don't just call add_bytes, because we need to have
4571 the names put into the external hash table. We set the type to
4572 'void' for now, and parse_def will fill in the correct type if it
4573 is in the symbol table. We must add the external symbols before
4574 the locals, since the locals do lookups against the externals. */
4575
4576 if (debug)
4577 fprintf (stderr, "\tehash\n");
4578
4579 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4580 {
4581 register EXTR *eptr = orig_ext_syms + es;
4582 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4583 register unsigned ifd = eptr->ifd;
4584
4585 (void) add_ext_symbol (ename,
4586 ename + strlen (ename),
4587 (st_t) eptr->asym.st,
4588 (sc_t) eptr->asym.sc,
4589 eptr->asym.value,
4590 (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4591 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4592 }
4593
4594
4595 /* For each of the files in the object file, copy the symbols, and such
4596 into the varrays for the new object file. */
4597
4598 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4599 {
4600 register FDR *fd_ptr = ORIG_FILES (fd);
4601 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4602 register SYMR *sym_start;
4603 register SYMR *sym;
4604 register SYMR *sym_end_p1;
4605 register PDR *proc_start;
4606 register PDR *proc;
4607 register PDR *proc_end_p1;
4608
4609 /* file support itself. */
4610 add_file (filename, filename + strlen (filename));
4611 cur_file_ptr->orig_fdr = fd_ptr;
4612
4613 /* Copy stuff that's just passed through (such as line #'s) */
4614 cur_file_ptr->fdr.adr = fd_ptr->adr;
4615 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4616 cur_file_ptr->fdr.cline = fd_ptr->cline;
4617 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4618 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4619 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4620 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4621 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4622 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4623 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4624
4625 if (debug)
4626 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4627
4628 /* For each of the static and global symbols defined, add them
4629 to the hash table of original symbols, so we can look up
4630 their values. */
4631
4632 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4633 sym_end_p1 = sym_start + fd_ptr->csym;
4634 for (sym = sym_start; sym < sym_end_p1; sym++)
4635 {
4636 switch ((st_t) sym->st)
4637 {
4638 default:
4639 break;
4640
4641 case st_Global:
4642 case st_Static:
4643 case st_Label:
4644 case st_Proc:
4645 case st_StaticProc:
4646 {
4647 auto symint_t hash_index;
4648 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4649 register Size_t len = strlen (str);
4650 register shash_t *shash_ptr = hash_string (str,
4651 (Ptrdiff_t)len,
4652 &orig_str_hash[0],
4653 &hash_index);
4654
4655 if (shash_ptr != (shash_t *)0)
4656 error ("internal error, %s is already in original symbol table", str);
4657
4658 else
4659 {
4660 shash_ptr = allocate_shash ();
4661 shash_ptr->next = orig_str_hash[hash_index];
4662 orig_str_hash[hash_index] = shash_ptr;
4663
4664 shash_ptr->len = len;
4665 shash_ptr->indx = indexNil;
4666 shash_ptr->string = str;
4667 shash_ptr->sym_ptr = sym;
4668 }
4669 }
4670 break;
4671
4672 case st_End:
4673 if ((sc_t) sym->sc == sc_Text)
4674 {
4675 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4676
4677 if (*str != '\0')
4678 {
4679 register Size_t len = strlen (str);
4680 register shash_t *shash_ptr = hash_string (str,
4681 (Ptrdiff_t)len,
4682 &orig_str_hash[0],
4683 (symint_t *)0);
4684
4685 if (shash_ptr != (shash_t *)0)
4686 shash_ptr->end_ptr = sym;
4687 }
4688 }
4689 break;
4690
4691 }
4692 }
4693
4694 if (debug)
4695 {
4696 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4697 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4698 }
4699
4700 /* Go through each of the procedures in this file, and add the
4701 procedure pointer to the hash entry for the given name. */
4702
4703 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4704 proc_end_p1 = proc_start + fd_ptr->cpd;
4705 for (proc = proc_start; proc < proc_end_p1; proc++)
4706 {
4707 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4708 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_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 (symint_t *)0);
4714
4715 if (shash_ptr == (shash_t *)0)
4716 error ("internal error, function %s is not in original symbol table", str);
4717
4718 else
4719 shash_ptr->proc_ptr = proc;
4720 }
4721
4722 if (debug)
4723 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4724
4725 }
4726 cur_file_ptr = first_file;
4727
4728
4729 /* Copy all of the object file up to the symbol table. Originally
4730 we were going to use ftruncate, but that doesn't seem to work
4731 on Ultrix 3.1.... */
4732
4733 if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4734 pfatal_with_name (obj_in_name);
4735
4736 if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4737 pfatal_with_name (object_name);
4738
4739 for (remaining = orig_file_header.f_symptr;
4740 remaining > 0;
4741 remaining -= num_write)
4742 {
4743 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4744 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4745 if (sys_read <= 0)
4746 pfatal_with_name (obj_in_name);
4747
4748 else if (sys_read != num_write)
4749 fatal ("Wanted to read %d bytes from %s, system returned %d",
4750 num_write,
4751 obj_in_name,
4752 sys_read);
4753
4754 sys_write = fwrite (buffer, 1, num_write, object_stream);
4755 if (sys_write <= 0)
4756 pfatal_with_name (object_name);
4757
4758 else if (sys_write != num_write)
4759 fatal ("Wrote %d bytes to %s, system returned %d",
4760 num_write,
4761 object_name,
4762 sys_write);
4763 }
4764}
4765
4766\f
4767/* Ye olde main program. */
4768
4769int
4770main (argc, argv)
4771 int argc;
4772 char *argv[];
4773{
4774 int iflag = 0;
4775 char *p = local_rindex (argv[0], '/');
4776 char *num_end;
4777 int option;
4778 int i;
4779
4780 progname = (p != 0) ? p+1 : argv[0];
4781
4782 (void) signal (SIGSEGV, catch_signal);
4783 (void) signal (SIGBUS, catch_signal);
4784 (void) signal (SIGABRT, catch_signal);
4785
4786#if !defined(__SABER__) && !defined(lint)
4787 if (sizeof (efdr_t) > PAGE_USIZE)
4788 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4789 sizeof (efdr_t),
4790 PAGE_USIZE);
4791
4792 if (sizeof (page_t) != PAGE_USIZE)
4793 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4794 sizeof (page_t),
4795 PAGE_USIZE);
4796
4797#endif
4798
4799 alloc_counts[ alloc_type_none ].alloc_name = "none";
4800 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4801 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4802 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4803 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4804 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4805 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4806 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4807 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4808
4809 int_type_info = type_info_init;
4810 int_type_info.basic_type = bt_Int;
4811
4812 void_type_info = type_info_init;
4813 void_type_info.basic_type = bt_Void;
4814
4815 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4816 switch (option)
4817 {
4818 default:
4819 had_errors++;
4820 break;
4821
4822 case 'd':
4823 debug = strtol (optarg, &num_end, 0);
4824 if ((unsigned)debug > 4 || num_end == optarg)
4825 had_errors++;
4826
4827 break;
4828
4829 case 'I':
4830 if (rename_output || obj_in_name != (char *)0)
4831 had_errors++;
4832 else
4833 rename_output = 1;
4834
4835 /* fall through to 'i' case. */
4836
4837 case 'i':
4838 if (obj_in_name == (char *)0)
4839 {
4840 obj_in_name = optarg;
4841 iflag++;
4842 }
4843 else
4844 had_errors++;
4845 break;
4846
4847 case 'o':
4848 if (object_name == (char *)0)
4849 object_name = optarg;
4850 else
4851 had_errors++;
4852 break;
4853
4854 case 'v':
4855 version++;
4856 break;
4857 }
4858
4859 if (obj_in_name == (char *)0 && optind <= argc - 2)
4860 obj_in_name = argv[--argc];
4861
4862 if (object_name == (char *)0 && optind <= argc - 2)
4863 object_name = argv[--argc];
4864
4865 /* If there is an output name, but no input name use
4866 the same file for both, deleting the name between
4867 opening it for input and opening it for output. */
4868 if (obj_in_name == (char *)0 && object_name != (char *)0)
4869 {
4870 obj_in_name = object_name;
4871 delete_input = 1;
4872 }
4873
4874 if (object_name == (char *)0 || had_errors || optind != argc - 1)
4875 {
4876 fprintf (stderr, "Calling Sequence:\n");
4877 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4878 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4879 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4880 fprintf (stderr, "\n");
4881 fprintf (stderr, "Debug levels are:\n");
4882 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4883 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4884 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4885 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4886 return 1;
4887 }
4888
4889
4890 if (version)
4891 {
4892 fprintf (stderr, "mips-tfile version %s", version_string);
4893#ifdef TARGET_VERSION
4894 TARGET_VERSION;
4895#endif
4896 fputc ('\n', stderr);
4897 }
4898
4899 if (obj_in_name == (char *)0)
4900 obj_in_name = object_name;
4901
4902 if (rename_output && rename (object_name, obj_in_name) != 0)
4903 {
4904 char *buffer = (char *) allocate_multiple_pages (4);
4905 int len;
4906 int len2;
4907 int in_fd;
4908 int out_fd;
4909
4910 /* Rename failed, copy input file */
4911 in_fd = open (object_name, O_RDONLY, 0666);
4912 if (in_fd < 0)
4913 pfatal_with_name (object_name);
4914
4915 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4916 if (out_fd < 0)
4917 pfatal_with_name (obj_in_name);
4918
4919 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4920 {
4921 len2 = write (out_fd, buffer, len);
4922 if (len2 < 0)
4923 pfatal_with_name (object_name);
4924
4925 if (len != len2)
4926 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4927 }
4928
4929 free_multiple_pages ((page_t *)buffer, 4);
4930
4931 if (len < 0)
4932 pfatal_with_name (object_name);
4933
4934 if (close (in_fd) < 0)
4935 pfatal_with_name (object_name);
4936
4937 if (close (out_fd) < 0)
4938 pfatal_with_name (obj_in_name);
4939 }
4940
4941 /* Must open input before output, since the output may be the same file, and
4942 we need to get the input handle before truncating it. */
4943 obj_in_stream = fopen (obj_in_name, "r");
4944 if (obj_in_stream == (FILE *)0)
4945 pfatal_with_name (obj_in_name);
4946
4947 if (delete_input && unlink (obj_in_name) != 0)
4948 pfatal_with_name (obj_in_name);
4949
4950 object_stream = fopen (object_name, "w");
4951 if (object_stream == (FILE *)0)
4952 pfatal_with_name (object_name);
4953
4954 if (strcmp (argv[optind], "-") != 0)
4955 {
4956 input_name = argv[optind];
4957 if (freopen (argv[optind], "r", stdin) != stdin)
4958 pfatal_with_name (argv[optind]);
4959 }
4960
4961 copy_object (); /* scan & copy object file */
4962 parse_input (); /* scan all of input */
4963
4964 update_headers (); /* write out tfile */
4965 write_object ();
4966
4967 if (debug)
4968 {
4969 fprintf (stderr, "\n\tAllocation summary:\n\n");
4970 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
4971 if (alloc_counts[i].total_alloc)
4972 {
4973 fprintf (stderr,
4974 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4975 alloc_counts[i].alloc_name,
4976 alloc_counts[i].total_alloc,
4977 alloc_counts[i].total_free,
4978 alloc_counts[i].total_pages);
4979 }
4980 }
4981
4982 return (had_errors) ? 1 : 0;
4983}
4984
4985\f
4986/* Catch a signal and exit without dumping core. */
4987
4988STATIC void
4989catch_signal (signum)
4990 int signum;
4991{
4992 (void) signal (signum, SIG_DFL); /* just in case... */
4993 fatal (sys_siglist[signum]);
4994}
4995
4996/* Print a fatal error message. NAME is the text.
4997 Also include a system error message based on `errno'. */
4998
4999void
5000pfatal_with_name (msg)
5001 char *msg;
5002{
5003 int save_errno = errno; /* just in case.... */
5004 if (line_number > 0)
5005 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5006 else
5007 fprintf (stderr, "%s:", progname);
5008
5009 errno = save_errno;
5010 if (errno == 0)
5011 fprintf (stderr, "[errno = 0] %s\n", msg);
5012 else
5013 perror (msg);
5014
5015 exit (1);
5016}
5017
5018\f
5019/* Procedure to abort with an out of bounds error message. It has
5020 type int, so it can be used with an ?: expression within the
5021 ORIG_xxx macros, but the function never returns. */
5022
5023static int
5024out_of_bounds (indx, max, str, prog_line)
5025 symint_t indx; /* index that is out of bounds */
5026 symint_t max; /* maximum index */
5027 const char *str; /* string to print out */
5028 int prog_line; /* line number within mips-tfile.c */
5029{
5030 if (indx < max) /* just in case */
5031 return 0;
5032
5033 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5034 progname, input_name, line_number, indx, str, max, prog_line);
5035
5036 exit (1);
5037 return 0; /* turn off warning messages */
5038}
5039
5040\f
5041/* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5042 like sbrk's behind it's back (or sbrk isn't available). If we use
5043 sbrk, we assume it gives us zeroed pages. */
5044
5045#ifndef MALLOC_CHECK
5046#ifdef USE_MALLOC
5047
5048STATIC page_t *
5049allocate_cluster (npages)
5050 Size_t npages;
5051{
5052 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5053
5054 if (value == 0)
5055 fatal ("Virtual memory exhausted.");
5056
5057 if (debug > 3)
5058 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5059
5060 return value;
5061}
5062
5063#else /* USE_MALLOC */
5064
5065STATIC page_t *
5066allocate_cluster (npages)
5067 Size_t npages;
5068{
5069 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5070 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5071
5072 if (offset != 0) /* align to a page boundary */
5073 {
5074 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5075 pfatal_with_name ("allocate_cluster");
5076
5077 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5078 }
5079
5080 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5081 pfatal_with_name ("allocate_cluster");
5082
5083 if (debug > 3)
5084 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5085
5086 return ptr;
5087}
5088
5089#endif /* USE_MALLOC */
5090
5091
5092static page_t *cluster_ptr = NULL;
5093static unsigned pages_left = 0;
5094
5095#endif /* MALLOC_CHECK */
5096
5097
5098/* Allocate some pages (which is initialized to 0). */
5099
5100STATIC page_t *
5101allocate_multiple_pages (npages)
5102 Size_t npages;
5103{
5104#ifndef MALLOC_CHECK
5105 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5106 {
5107 pages_left = MAX_CLUSTER_PAGES;
5108 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5109 }
5110
5111 if (npages <= pages_left)
5112 {
5113 page_t *ptr = cluster_ptr;
5114 cluster_ptr += npages;
5115 pages_left -= npages;
5116 return ptr;
5117 }
5118
5119 return allocate_cluster (npages);
5120
5121#else /* MALLOC_CHECK */
5122 return (page_t *) xcalloc (npages, PAGE_SIZE);
5123
5124#endif /* MALLOC_CHECK */
5125}
5126
5127
5128/* Release some pages. */
5129
5130STATIC void
5131free_multiple_pages (page_ptr, npages)
5132 page_t *page_ptr;
5133 Size_t npages;
5134{
5135#ifndef MALLOC_CHECK
5136 if (pages_left == 0)
5137 {
5138 cluster_ptr = page_ptr;
5139 pages_left = npages;
5140 }
5141
5142 else if ((page_ptr + npages) == cluster_ptr)
5143 {
5144 cluster_ptr -= npages;
5145 pages_left += npages;
5146 }
5147
5148 /* otherwise the page is not freed. If more than call is
5149 done, we probably should worry about it, but at present,
5150 the free pages is done right after an allocate. */
5151
5152#else /* MALLOC_CHECK */
5153 free ((char *) page_ptr);
5154
5155#endif /* MALLOC_CHECK */
5156}
5157
5158
5159/* Allocate one page (which is initialized to 0). */
5160
5161STATIC page_t *
5162allocate_page __proto((void))
5163{
5164#ifndef MALLOC_CHECK
5165 if (pages_left == 0)
5166 {
5167 pages_left = MAX_CLUSTER_PAGES;
5168 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5169 }
5170
5171 pages_left--;
5172 return cluster_ptr++;
5173
5174#else /* MALLOC_CHECK */
5175 return (page_t *) xcalloc (1, PAGE_SIZE);
5176
5177#endif /* MALLOC_CHECK */
5178}
5179
5180\f
5181/* Allocate scoping information. */
5182
5183STATIC scope_t *
5184allocate_scope __proto((void))
5185{
5186 register scope_t *ptr;
5187 static scope_t initial_scope;
5188
5189#ifndef MALLOC_CHECK
5190 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5191 if (ptr != (scope_t *)0)
5192 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5193
5194 else
5195 {
5196 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5197 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5198
5199 if (unallocated == 0)
5200 {
5201 unallocated = PAGE_SIZE / sizeof (scope_t);
5202 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5203 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5204 }
5205
5206 ptr = &cur_page->scope[ --unallocated ];
5207 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5208 }
5209
5210#else
5211 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5212
5213#endif
5214
5215 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5216 *ptr = initial_scope;
5217 return ptr;
5218}
5219
5220/* Free scoping information. */
5221
5222STATIC void
5223free_scope (ptr)
5224 scope_t *ptr;
5225{
5226 alloc_counts[ (int)alloc_type_scope ].total_free++;
5227
5228#ifndef MALLOC_CHECK
5229 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5230 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5231
5232#else
5233 xfree ((PTR_T) ptr);
5234#endif
5235
5236}
5237
5238\f
5239/* Allocate links for pages in a virtual array. */
5240
5241STATIC vlinks_t *
5242allocate_vlinks __proto((void))
5243{
5244 register vlinks_t *ptr;
5245 static vlinks_t initial_vlinks;
5246
5247#ifndef MALLOC_CHECK
5248 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5249 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5250
5251 if (unallocated == 0)
5252 {
5253 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5254 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5255 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5256 }
5257
5258 ptr = &cur_page->vlinks[ --unallocated ];
5259 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5260
5261#else
5262 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5263
5264#endif
5265
5266 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5267 *ptr = initial_vlinks;
5268 return ptr;
5269}
5270
5271\f
5272/* Allocate string hash buckets. */
5273
5274STATIC shash_t *
5275allocate_shash __proto((void))
5276{
5277 register shash_t *ptr;
5278 static shash_t initial_shash;
5279
5280#ifndef MALLOC_CHECK
5281 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5282 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5283
5284 if (unallocated == 0)
5285 {
5286 unallocated = PAGE_SIZE / sizeof (shash_t);
5287 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5288 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5289 }
5290
5291 ptr = &cur_page->shash[ --unallocated ];
5292 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5293
5294#else
5295 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5296
5297#endif
5298
5299 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5300 *ptr = initial_shash;
5301 return ptr;
5302}
5303
5304\f
5305/* Allocate type hash buckets. */
5306
5307STATIC thash_t *
5308allocate_thash __proto((void))
5309{
5310 register thash_t *ptr;
5311 static thash_t initial_thash;
5312
5313#ifndef MALLOC_CHECK
5314 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5315 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5316
5317 if (unallocated == 0)
5318 {
5319 unallocated = PAGE_SIZE / sizeof (thash_t);
5320 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5321 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5322 }
5323
5324 ptr = &cur_page->thash[ --unallocated ];
5325 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5326
5327#else
5328 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5329
5330#endif
5331
5332 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5333 *ptr = initial_thash;
5334 return ptr;
5335}
5336
5337\f
5338/* Allocate structure, union, or enum tag information. */
5339
5340STATIC tag_t *
5341allocate_tag __proto((void))
5342{
5343 register tag_t *ptr;
5344 static tag_t initial_tag;
5345
5346#ifndef MALLOC_CHECK
5347 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5348 if (ptr != (tag_t *)0)
5349 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5350
5351 else
5352 {
5353 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5354 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5355
5356 if (unallocated == 0)
5357 {
5358 unallocated = PAGE_SIZE / sizeof (tag_t);
5359 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5360 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5361 }
5362
5363 ptr = &cur_page->tag[ --unallocated ];
5364 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5365 }
5366
5367#else
5368 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5369
5370#endif
5371
5372 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5373 *ptr = initial_tag;
5374 return ptr;
5375}
5376
5377/* Free scoping information. */
5378
5379STATIC void
5380free_tag (ptr)
5381 tag_t *ptr;
5382{
5383 alloc_counts[ (int)alloc_type_tag ].total_free++;
5384
5385#ifndef MALLOC_CHECK
5386 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5387 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5388
5389#else
5390 xfree ((PTR_T) ptr);
5391#endif
5392
5393}
5394
5395\f
5396/* Allocate forward reference to a yet unknown tag. */
5397
5398STATIC forward_t *
5399allocate_forward __proto((void))
5400{
5401 register forward_t *ptr;
5402 static forward_t initial_forward;
5403
5404#ifndef MALLOC_CHECK
5405 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5406 if (ptr != (forward_t *)0)
5407 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5408
5409 else
5410 {
5411 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5412 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5413
5414 if (unallocated == 0)
5415 {
5416 unallocated = PAGE_SIZE / sizeof (forward_t);
5417 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5418 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5419 }
5420
5421 ptr = &cur_page->forward[ --unallocated ];
5422 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5423 }
5424
5425#else
5426 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5427
5428#endif
5429
5430 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5431 *ptr = initial_forward;
5432 return ptr;
5433}
5434
5435/* Free scoping information. */
5436
5437STATIC void
5438free_forward (ptr)
5439 forward_t *ptr;
5440{
5441 alloc_counts[ (int)alloc_type_forward ].total_free++;
5442
5443#ifndef MALLOC_CHECK
5444 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5445 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5446
5447#else
5448 xfree ((PTR_T) ptr);
5449#endif
5450
5451}
5452
5453\f
5454/* Allocate head of type hash list. */
5455
5456STATIC thead_t *
5457allocate_thead __proto((void))
5458{
5459 register thead_t *ptr;
5460 static thead_t initial_thead;
5461
5462#ifndef MALLOC_CHECK
5463 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5464 if (ptr != (thead_t *)0)
5465 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5466
5467 else
5468 {
5469 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5470 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5471
5472 if (unallocated == 0)
5473 {
5474 unallocated = PAGE_SIZE / sizeof (thead_t);
5475 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5476 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5477 }
5478
5479 ptr = &cur_page->thead[ --unallocated ];
5480 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5481 }
5482
5483#else
5484 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5485
5486#endif
5487
5488 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5489 *ptr = initial_thead;
5490 return ptr;
5491}
5492
5493/* Free scoping information. */
5494
5495STATIC void
5496free_thead (ptr)
5497 thead_t *ptr;
5498{
5499 alloc_counts[ (int)alloc_type_thead ].total_free++;
5500
5501#ifndef MALLOC_CHECK
5502 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5503 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5504
5505#else
5506 xfree ((PTR_T) ptr);
5507#endif
5508
5509}
5510
5511#endif /* MIPS_DEBUGGING_INFO */
5512
5513\f
5514/* Output an error message and exit */
5515
5516/*VARARGS*/
5517void
5518fatal (va_alist)
5519 va_dcl
5520{
5521 va_list ap;
5522 char *format;
5523
5524 if (line_number > 0)
5525 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5526 else
5527 fprintf (stderr, "%s:", progname);
5528
5529 va_start(ap);
5530 format = va_arg (ap, char *);
5531 vfprintf (stderr, format, ap);
5532 va_end (ap);
5533 fprintf (stderr, "\n");
5534 if (line_number > 0)
5535 fprintf (stderr, "line:\t%s\n", cur_line_start);
5536
5537 saber_stop ();
5538 exit (1);
5539}
5540
5541/*VARARGS*/
5542void
5543error (va_alist)
5544 va_dcl
5545{
5546 va_list ap;
5547 char *format;
5548
5549 if (line_number > 0)
5550 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5551 else
5552 fprintf (stderr, "%s:", progname);
5553
5554 va_start(ap);
5555 format = va_arg (ap, char *);
5556 vfprintf (stderr, format, ap);
5557 fprintf (stderr, "\n");
5558 if (line_number > 0)
5559 fprintf (stderr, "line:\t%s\n", cur_line_start);
5560
5561 had_errors++;
5562 va_end (ap);
5563
5564 saber_stop ();
5565}
5566
5567/* More 'friendly' abort that prints the line and file.
5568 config.h can #define abort fancy_abort if you like that sort of thing. */
5569
5570void
5571fancy_abort ()
5572{
5573 fatal ("Internal abort.");
5574}
5575\f
5576
5577/* When `malloc.c' is compiled with `rcheck' defined,
5578 it calls this function to report clobberage. */
5579
5580void
5581botch (s)
5582 const char *s;
5583{
5584 fatal (s);
5585}
5586
5587/* Same as `malloc' but report error if no memory available. */
5588
5589PTR_T
5590xmalloc (size)
5591 Size_t size;
5592{
5593 register PTR_T value = malloc (size);
5594 if (value == 0)
5595 fatal ("Virtual memory exhausted.");
5596
5597 if (debug > 3)
5598 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5599
5600 return value;
5601}
5602
5603/* Same as `calloc' but report error if no memory available. */
5604
5605PTR_T
5606xcalloc (size1, size2)
5607 Size_t size1, size2;
5608{
5609 register PTR_T value = calloc (size1, size2);
5610 if (value == 0)
5611 fatal ("Virtual memory exhausted.");
5612
5613 if (debug > 3)
5614 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5615 value, size1, size2, size1+size2);
5616
5617 return value;
5618}
5619
5620/* Same as `realloc' but report error if no memory available. */
5621
5622PTR_T
5623xrealloc (ptr, size)
5624 PTR_T ptr;
5625 Size_t size;
5626{
5627 register PTR_T result = realloc (ptr, size);
5628 if (!result)
5629 fatal ("Virtual memory exhausted.");
5630
5631 if (debug > 3)
5632 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5633 result, size, ptr);
5634
5635 return result;
5636}
5637
5638void
5639xfree (ptr)
5640 PTR_T ptr;
5641{
5642 if (debug > 3)
5643 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5644
5645 free (ptr);
5646}
5647
5648\f
5649/* Define our own index/rindex, since the local and global symbol
5650 structures as defined by MIPS has an 'index' field. */
5651
5652STATIC char *
5653local_index (str, sentinel)
5654 const char *str;
5655 int sentinel;
5656{
5657 int ch;
5658
5659 for ( ; (ch = *str) != sentinel; str++)
5660 {
5661 if (ch == '\0')
5662 return (char *)0;
5663 }
5664
5665 return (char *)str;
5666}
5667
5668STATIC char *
5669local_rindex (str, sentinel)
5670 const char *str;
5671 int sentinel;
5672{
5673 int ch;
5674 const char *ret = (const char *)0;
5675
5676 for ( ; (ch = *str) != '\0'; str++)
5677 {
5678 if (ch == sentinel)
5679 ret = str;
5680 }
5681
5682 return (char *)ret;
5683}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.