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[official-gcc.git] / gcc / mips-tfile.c
blobaab423c37b8a7606385cfce303f5e1518ea9f1c3
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 93, 94, 95, 97, 1998 Free Software Foundation, Inc.
6 Contributed by Michael Meissner (meissner@cygnus.com).
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #ifdef __STDC__
604 #include <stdarg.h>
605 #else
606 #include <varargs.h>
607 #endif
608 #include "system.h"
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 #ifndef __LINE__
615 #define __LINE__ 0
616 #endif
617
618 #ifdef __STDC__
619 typedef void *PTR_T;
620 typedef const void *CPTR_T;
621 #define __proto(x) x
622 #ifndef VPROTO
623 #define PVPROTO(ARGS) ARGS
624 #define VPROTO(ARGS) ARGS
625 #define VA_START(va_list,var) va_start(va_list,var)
626 #endif
627 #else
628
629 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
630 typedef void *PTR_T;
631 typedef void *CPTR_T;
632
633 #else
634 typedef char *PTR_T; /* Ultrix 3.1 */
635 typedef char *CPTR_T;
636 #endif
637
638 #define __proto(x) ()
639 #define const
640 #ifndef VPROTO
641 #define PVPROTO(ARGS) ()
642 #define VPROTO(ARGS) (va_alist) va_dcl
643 #define VA_START(va_list,var) va_start(va_list)
644 #endif
645 #endif
646
647 /* Do to size_t being defined in sys/types.h and different
648 in stddef.h, we have to do this by hand..... Note, these
649 types are correct for MIPS based systems, and may not be
650 correct for other systems. Ultrix 4.0 and Silicon Graphics
651 have this fixed, but since the following is correct, and
652 the fact that including stddef.h gets you GCC's version
653 instead of the standard one it's not worth it to fix it. */
654
655 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
656 #define Size_t long unsigned int
657 #else
658 #define Size_t unsigned int
659 #endif
660 #define Ptrdiff_t long
661
662 /* The following might be called from obstack or malloc,
663 so they can't be static. */
664
665 extern void pfatal_with_name
666 __proto((char *));
667 extern void fancy_abort __proto((void));
668 void botch __proto((const char *));
669 extern PTR_T xmalloc __proto((Size_t));
670 extern PTR_T xcalloc __proto((Size_t, Size_t));
671 extern PTR_T xrealloc __proto((PTR_T, Size_t));
672 extern void xfree __proto((PTR_T));
673
674 extern void fatal PVPROTO((const char *format, ...));
675 extern void error PVPROTO((const char *format, ...));
676 \f
677 #ifndef MIPS_DEBUGGING_INFO
678
679 static int line_number;
680 static int cur_line_start;
681 static int debug;
682 static int had_errors;
683 static char *progname;
684 static char *input_name;
685
686 int
687 main ()
688 {
689 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
690 exit (1);
691 }
692
693 #else /* MIPS_DEBUGGING defined */
694 \f
695 /* The local and global symbols have a field index, so undo any defines
696 of index -> strchr and rindex -> strrchr. */
697
698 #undef rindex
699 #undef index
700
701 #include <signal.h>
702 #include <sys/stat.h>
703
704 #ifndef CROSS_COMPILE
705 #include <a.out.h>
706 #else
707 #include "mips/a.out.h"
708 #endif /* CROSS_COMPILE */
709
710 #if defined (USG) || !defined (HAVE_STAB_H)
711 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
712 #else
713 #include <stab.h> /* On BSD, use the system's stab.h. */
714 #endif /* not USG */
715
716 #ifdef __GNU_STAB__
717 #define STAB_CODE_TYPE enum __stab_debug_code
718 #else
719 #define STAB_CODE_TYPE int
720 #endif
721
722 #ifndef MALLOC_CHECK
723 #ifdef __SABER__
724 #define MALLOC_CHECK
725 #endif
726 #endif
727
728 #define IS_ASM_IDENT(ch) \
729 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
730
731 \f
732 /* Redefinition of storage classes as an enumeration for better
733 debugging. */
734
735 typedef enum sc {
736 sc_Nil = scNil, /* no storage class */
737 sc_Text = scText, /* text symbol */
738 sc_Data = scData, /* initialized data symbol */
739 sc_Bss = scBss, /* un-initialized data symbol */
740 sc_Register = scRegister, /* value of symbol is register number */
741 sc_Abs = scAbs, /* value of symbol is absolute */
742 sc_Undefined = scUndefined, /* who knows? */
743 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
744 sc_Bits = scBits, /* this is a bit field */
745 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
746 sc_RegImage = scRegImage, /* register value saved on stack */
747 sc_Info = scInfo, /* symbol contains debugger information */
748 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
749 sc_SData = scSData, /* load time only small data */
750 sc_SBss = scSBss, /* load time only small common */
751 sc_RData = scRData, /* load time only read only data */
752 sc_Var = scVar, /* Var parameter (fortran,pascal) */
753 sc_Common = scCommon, /* common variable */
754 sc_SCommon = scSCommon, /* small common */
755 sc_VarRegister = scVarRegister, /* Var parameter in a register */
756 sc_Variant = scVariant, /* Variant record */
757 sc_SUndefined = scSUndefined, /* small undefined(external) data */
758 sc_Init = scInit, /* .init section symbol */
759 sc_Max = scMax /* Max storage class+1 */
760 } sc_t;
761
762 /* Redefinition of symbol type. */
763
764 typedef enum st {
765 st_Nil = stNil, /* Nuthin' special */
766 st_Global = stGlobal, /* external symbol */
767 st_Static = stStatic, /* static */
768 st_Param = stParam, /* procedure argument */
769 st_Local = stLocal, /* local variable */
770 st_Label = stLabel, /* label */
771 st_Proc = stProc, /* " " Procedure */
772 st_Block = stBlock, /* beginning of block */
773 st_End = stEnd, /* end (of anything) */
774 st_Member = stMember, /* member (of anything - struct/union/enum */
775 st_Typedef = stTypedef, /* type definition */
776 st_File = stFile, /* file name */
777 st_RegReloc = stRegReloc, /* register relocation */
778 st_Forward = stForward, /* forwarding address */
779 st_StaticProc = stStaticProc, /* load time only static procs */
780 st_Constant = stConstant, /* const */
781 st_Str = stStr, /* string */
782 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
783 st_Expr = stExpr, /* 2+2 vs. 4 */
784 st_Type = stType, /* post-coercion SER */
785 st_Max = stMax /* max type+1 */
786 } st_t;
787
788 /* Redefinition of type qualifiers. */
789
790 typedef enum tq {
791 tq_Nil = tqNil, /* bt is what you see */
792 tq_Ptr = tqPtr, /* pointer */
793 tq_Proc = tqProc, /* procedure */
794 tq_Array = tqArray, /* duh */
795 tq_Far = tqFar, /* longer addressing - 8086/8 land */
796 tq_Vol = tqVol, /* volatile */
797 tq_Max = tqMax /* Max type qualifier+1 */
798 } tq_t;
799
800 /* Redefinition of basic types. */
801
802 typedef enum bt {
803 bt_Nil = btNil, /* undefined */
804 bt_Adr = btAdr, /* address - integer same size as pointer */
805 bt_Char = btChar, /* character */
806 bt_UChar = btUChar, /* unsigned character */
807 bt_Short = btShort, /* short */
808 bt_UShort = btUShort, /* unsigned short */
809 bt_Int = btInt, /* int */
810 bt_UInt = btUInt, /* unsigned int */
811 bt_Long = btLong, /* long */
812 bt_ULong = btULong, /* unsigned long */
813 bt_Float = btFloat, /* float (real) */
814 bt_Double = btDouble, /* Double (real) */
815 bt_Struct = btStruct, /* Structure (Record) */
816 bt_Union = btUnion, /* Union (variant) */
817 bt_Enum = btEnum, /* Enumerated */
818 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
819 bt_Range = btRange, /* subrange of int */
820 bt_Set = btSet, /* pascal sets */
821 bt_Complex = btComplex, /* fortran complex */
822 bt_DComplex = btDComplex, /* fortran double complex */
823 bt_Indirect = btIndirect, /* forward or unnamed typedef */
824 bt_FixedDec = btFixedDec, /* Fixed Decimal */
825 bt_FloatDec = btFloatDec, /* Float Decimal */
826 bt_String = btString, /* Varying Length Character String */
827 bt_Bit = btBit, /* Aligned Bit String */
828 bt_Picture = btPicture, /* Picture */
829
830 #ifdef btVoid
831 bt_Void = btVoid, /* Void */
832 #else
833 #define bt_Void bt_Nil
834 #endif
835
836 bt_Max = btMax /* Max basic type+1 */
837 } bt_t;
838
839 \f
840
841 /* Basic COFF storage classes. */
842 enum coff_storage {
843 C_EFCN = -1,
844 C_NULL = 0,
845 C_AUTO = 1,
846 C_EXT = 2,
847 C_STAT = 3,
848 C_REG = 4,
849 C_EXTDEF = 5,
850 C_LABEL = 6,
851 C_ULABEL = 7,
852 C_MOS = 8,
853 C_ARG = 9,
854 C_STRTAG = 10,
855 C_MOU = 11,
856 C_UNTAG = 12,
857 C_TPDEF = 13,
858 C_USTATIC = 14,
859 C_ENTAG = 15,
860 C_MOE = 16,
861 C_REGPARM = 17,
862 C_FIELD = 18,
863 C_BLOCK = 100,
864 C_FCN = 101,
865 C_EOS = 102,
866 C_FILE = 103,
867 C_LINE = 104,
868 C_ALIAS = 105,
869 C_HIDDEN = 106,
870 C_MAX = 107
871 } coff_storage_t;
872
873 /* Regular COFF fundamental type. */
874 typedef enum coff_type {
875 T_NULL = 0,
876 T_ARG = 1,
877 T_CHAR = 2,
878 T_SHORT = 3,
879 T_INT = 4,
880 T_LONG = 5,
881 T_FLOAT = 6,
882 T_DOUBLE = 7,
883 T_STRUCT = 8,
884 T_UNION = 9,
885 T_ENUM = 10,
886 T_MOE = 11,
887 T_UCHAR = 12,
888 T_USHORT = 13,
889 T_UINT = 14,
890 T_ULONG = 15,
891 T_MAX = 16
892 } coff_type_t;
893
894 /* Regular COFF derived types. */
895 typedef enum coff_dt {
896 DT_NON = 0,
897 DT_PTR = 1,
898 DT_FCN = 2,
899 DT_ARY = 3,
900 DT_MAX = 4
901 } coff_dt_t;
902
903 #define N_BTMASK 017 /* bitmask to isolate basic type */
904 #define N_TMASK 003 /* bitmask to isolate derived type */
905 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
906 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
907 #define N_TQ 6 /* # of type qualifiers */
908
909 /* States for whether to hash type or not. */
910 typedef enum hash_state {
911 hash_no = 0, /* don't hash type */
912 hash_yes = 1, /* ok to hash type, or use previous hash */
913 hash_record = 2 /* ok to record hash, but don't use prev. */
914 } hash_state_t;
915
916
917 /* Types of different sized allocation requests. */
918 enum alloc_type {
919 alloc_type_none, /* dummy value */
920 alloc_type_scope, /* nested scopes linked list */
921 alloc_type_vlinks, /* glue linking pages in varray */
922 alloc_type_shash, /* string hash element */
923 alloc_type_thash, /* type hash element */
924 alloc_type_tag, /* struct/union/tag element */
925 alloc_type_forward, /* element to hold unknown tag */
926 alloc_type_thead, /* head of type hash list */
927 alloc_type_varray, /* general varray allocation */
928 alloc_type_last /* last+1 element for array bounds */
929 };
930
931 \f
932 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
933 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
934
935
936 /* Structures to provide n-number of virtual arrays, each of which can
937 grow linearly, and which are written in the object file as sequential
938 pages. On systems with a BSD malloc that define USE_MALLOC, the
939 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
940 adds it's overhead, and rounds up to the next power of 2. Pages are
941 linked together via a linked list.
942
943 If PAGE_SIZE is > 4096, the string length in the shash_t structure
944 can't be represented (assuming there are strings > 4096 bytes). */
945
946 #ifndef PAGE_SIZE
947 #define PAGE_SIZE 4096 /* size of varray pages */
948 #endif
949
950 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
951
952
953 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
954 #ifndef USE_MALLOC /* in one memory request */
955 #define MAX_CLUSTER_PAGES 64
956 #else
957 #define MAX_CLUSTER_PAGES 63
958 #endif
959 #endif
960
961
962 /* Linked list connecting separate page allocations. */
963 typedef struct vlinks {
964 struct vlinks *prev; /* previous set of pages */
965 struct vlinks *next; /* next set of pages */
966 union page *datum; /* start of page */
967 unsigned long start_index; /* starting index # of page */
968 } vlinks_t;
969
970
971 /* Virtual array header. */
972 typedef struct varray {
973 vlinks_t *first; /* first page link */
974 vlinks_t *last; /* last page link */
975 unsigned long num_allocated; /* # objects allocated */
976 unsigned short object_size; /* size in bytes of each object */
977 unsigned short objects_per_page; /* # objects that can fit on a page */
978 unsigned short objects_last_page; /* # objects allocated on last page */
979 } varray_t;
980
981 #ifndef MALLOC_CHECK
982 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
983 #else
984 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
985 #endif
986
987 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
988 (vlinks_t *) 0, /* first */ \
989 (vlinks_t *) 0, /* last */ \
990 0, /* num_allocated */ \
991 sizeof (type), /* object_size */ \
992 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
993 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
994 }
995
996 /* Master type for indexes within the symbol table. */
997 typedef unsigned long symint_t;
998
999
1000 /* Linked list support for nested scopes (file, block, structure, etc.). */
1001 typedef struct scope {
1002 struct scope *prev; /* previous scope level */
1003 struct scope *free; /* free list pointer */
1004 SYMR *lsym; /* pointer to local symbol node */
1005 symint_t lnumber; /* lsym index */
1006 st_t type; /* type of the node */
1007 } scope_t;
1008
1009
1010 /* Forward reference list for tags referenced, but not yet defined. */
1011 typedef struct forward {
1012 struct forward *next; /* next forward reference */
1013 struct forward *free; /* free list pointer */
1014 AUXU *ifd_ptr; /* pointer to store file index */
1015 AUXU *index_ptr; /* pointer to store symbol index */
1016 AUXU *type_ptr; /* pointer to munge type info */
1017 } forward_t;
1018
1019
1020 /* Linked list support for tags. The first tag in the list is always
1021 the current tag for that block. */
1022 typedef struct tag {
1023 struct tag *free; /* free list pointer */
1024 struct shash *hash_ptr; /* pointer to the hash table head */
1025 struct tag *same_name; /* tag with same name in outer scope */
1026 struct tag *same_block; /* next tag defined in the same block. */
1027 struct forward *forward_ref; /* list of forward references */
1028 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1029 symint_t ifd; /* file # tag defined in */
1030 symint_t indx; /* index within file's local symbols */
1031 } tag_t;
1032
1033
1034 /* Head of a block's linked list of tags. */
1035 typedef struct thead {
1036 struct thead *prev; /* previous block */
1037 struct thead *free; /* free list pointer */
1038 struct tag *first_tag; /* first tag in block defined */
1039 } thead_t;
1040
1041
1042 /* Union containing pointers to each the small structures which are freed up. */
1043 typedef union small_free {
1044 scope_t *f_scope; /* scope structure */
1045 thead_t *f_thead; /* tag head structure */
1046 tag_t *f_tag; /* tag element structure */
1047 forward_t *f_forward; /* forward tag reference */
1048 } small_free_t;
1049
1050
1051 /* String hash table support. The size of the hash table must fit
1052 within a page. */
1053
1054 #ifndef SHASH_SIZE
1055 #define SHASH_SIZE 1009
1056 #endif
1057
1058 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1059
1060 typedef struct shash {
1061 struct shash *next; /* next hash value */
1062 char *string; /* string we are hashing */
1063 symint_t len; /* string length */
1064 symint_t indx; /* index within string table */
1065 EXTR *esym_ptr; /* global symbol pointer */
1066 SYMR *sym_ptr; /* local symbol pointer */
1067 SYMR *end_ptr; /* symbol pointer to end block */
1068 tag_t *tag_ptr; /* tag pointer */
1069 PDR *proc_ptr; /* procedure descriptor pointer */
1070 } shash_t;
1071
1072
1073 /* Type hash table support. The size of the hash table must fit
1074 within a page with the other extended file descriptor information.
1075 Because unique types which are hashed are fewer in number than
1076 strings, we use a smaller hash value. */
1077
1078 #ifndef THASH_SIZE
1079 #define THASH_SIZE 113
1080 #endif
1081
1082 typedef struct thash {
1083 struct thash *next; /* next hash value */
1084 AUXU type; /* type we are hashing */
1085 symint_t indx; /* index within string table */
1086 } thash_t;
1087
1088
1089 /* Extended file descriptor that contains all of the support necessary
1090 to add things to each file separately. */
1091 typedef struct efdr {
1092 FDR fdr; /* File header to be written out */
1093 FDR *orig_fdr; /* original file header */
1094 char *name; /* filename */
1095 int name_len; /* length of the filename */
1096 symint_t void_type; /* aux. pointer to 'void' type */
1097 symint_t int_type; /* aux. pointer to 'int' type */
1098 scope_t *cur_scope; /* current nested scopes */
1099 symint_t file_index; /* current file number */
1100 int nested_scopes; /* # nested scopes */
1101 varray_t strings; /* local strings */
1102 varray_t symbols; /* local symbols */
1103 varray_t procs; /* procedures */
1104 varray_t aux_syms; /* auxiliary symbols */
1105 struct efdr *next_file; /* next file descriptor */
1106 /* string/type hash tables */
1107 shash_t **shash_head; /* string hash table */
1108 thash_t *thash_head[THASH_SIZE];
1109 } efdr_t;
1110
1111 /* Pre-initialized extended file structure. */
1112 static efdr_t init_file =
1113 {
1114 { /* FDR structure */
1115 0, /* adr: memory address of beginning of file */
1116 0, /* rss: file name (of source, if known) */
1117 0, /* issBase: file's string space */
1118 0, /* cbSs: number of bytes in the ss */
1119 0, /* isymBase: beginning of symbols */
1120 0, /* csym: count file's of symbols */
1121 0, /* ilineBase: file's line symbols */
1122 0, /* cline: count of file's line symbols */
1123 0, /* ioptBase: file's optimization entries */
1124 0, /* copt: count of file's optimization entries */
1125 0, /* ipdFirst: start of procedures for this file */
1126 0, /* cpd: count of procedures for this file */
1127 0, /* iauxBase: file's auxiliary entries */
1128 0, /* caux: count of file's auxiliary entries */
1129 0, /* rfdBase: index into the file indirect table */
1130 0, /* crfd: count file indirect entries */
1131 langC, /* lang: language for this file */
1132 1, /* fMerge: whether this file can be merged */
1133 0, /* fReadin: true if read in (not just created) */
1134 #ifdef HOST_WORDS_BIG_ENDIAN
1135 1, /* fBigendian: if 1, compiled on big endian machine */
1136 #else
1137 0, /* fBigendian: if 1, compiled on big endian machine */
1138 #endif
1139 GLEVEL_2, /* glevel: level this file was compiled with */
1140 0, /* reserved: reserved for future use */
1141 0, /* cbLineOffset: byte offset from header for this file ln's */
1142 0, /* cbLine: size of lines for this file */
1143 },
1144
1145 (FDR *) 0, /* orig_fdr: original file header pointer */
1146 (char *) 0, /* name: pointer to filename */
1147 0, /* name_len: length of filename */
1148 0, /* void_type: ptr to aux node for void type */
1149 0, /* int_type: ptr to aux node for int type */
1150 (scope_t *) 0, /* cur_scope: current scope being processed */
1151 0, /* file_index: current file # */
1152 0, /* nested_scopes: # nested scopes */
1153 INIT_VARRAY (char), /* strings: local string varray */
1154 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1155 INIT_VARRAY (PDR), /* procs: procedure varray */
1156 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1157
1158 (struct efdr *) 0, /* next_file: next file structure */
1159
1160 (shash_t **) 0, /* shash_head: string hash table */
1161 { 0 }, /* thash_head: type hash table */
1162 };
1163
1164
1165 static efdr_t *first_file; /* first file descriptor */
1166 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1167
1168
1169 /* Union of various things that are held in pages. */
1170 typedef union page {
1171 char byte [ PAGE_SIZE ];
1172 unsigned char ubyte [ PAGE_SIZE ];
1173 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1174 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1175 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1176 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1177 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1178 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1179 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1180 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1181 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1182 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1183 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1184 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1185 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1186 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1187 } page_t;
1188
1189
1190 /* Structure holding allocation information for small sized structures. */
1191 typedef struct alloc_info {
1192 char *alloc_name; /* name of this allocation type (must be first) */
1193 page_t *cur_page; /* current page being allocated from */
1194 small_free_t free_list; /* current free list if any */
1195 int unallocated; /* number of elements unallocated on page */
1196 int total_alloc; /* total number of allocations */
1197 int total_free; /* total number of frees */
1198 int total_pages; /* total number of pages allocated */
1199 } alloc_info_t;
1200
1201 /* Type information collected together. */
1202 typedef struct type_info {
1203 bt_t basic_type; /* basic type */
1204 coff_type_t orig_type; /* original COFF-based type */
1205 int num_tq; /* # type qualifiers */
1206 int num_dims; /* # dimensions */
1207 int num_sizes; /* # sizes */
1208 int extra_sizes; /* # extra sizes not tied with dims */
1209 tag_t * tag_ptr; /* tag pointer */
1210 int bitfield; /* symbol is a bitfield */
1211 int unknown_tag; /* this is an unknown tag */
1212 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1213 symint_t dimensions [N_TQ]; /* dimensions for each array */
1214 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1215 struct/union/enum + bitfield size */
1216 } type_info_t;
1217
1218 /* Pre-initialized type_info struct. */
1219 static type_info_t type_info_init = {
1220 bt_Nil, /* basic type */
1221 T_NULL, /* original COFF-based type */
1222 0, /* # type qualifiers */
1223 0, /* # dimensions */
1224 0, /* # sizes */
1225 0, /* sizes not tied with dims */
1226 NULL, /* ptr to tag */
1227 0, /* bitfield */
1228 0, /* unknown tag */
1229 { /* type qualifiers */
1230 tq_Nil,
1231 tq_Nil,
1232 tq_Nil,
1233 tq_Nil,
1234 tq_Nil,
1235 tq_Nil,
1236 },
1237 { /* dimensions */
1238 0,
1239 0,
1240 0,
1241 0,
1242 0,
1243 0
1244 },
1245 { /* sizes */
1246 0,
1247 0,
1248 0,
1249 0,
1250 0,
1251 0,
1252 0,
1253 0,
1254 },
1255 };
1256
1257
1258 /* Global virtual arrays & hash table for external strings as well as
1259 for the tags table and global tables for file descriptors, and
1260 dense numbers. */
1261
1262 static varray_t file_desc = INIT_VARRAY (efdr_t);
1263 static varray_t dense_num = INIT_VARRAY (DNR);
1264 static varray_t tag_strings = INIT_VARRAY (char);
1265 static varray_t ext_strings = INIT_VARRAY (char);
1266 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1267
1268 static shash_t *orig_str_hash[SHASH_SIZE];
1269 static shash_t *ext_str_hash [SHASH_SIZE];
1270 static shash_t *tag_hash [SHASH_SIZE];
1271
1272 /* Static types for int and void. Also, remember the last function's
1273 type (which is set up when we encounter the declaration for the
1274 function, and used when the end block for the function is emitted. */
1275
1276 static type_info_t int_type_info;
1277 static type_info_t void_type_info;
1278 static type_info_t last_func_type_info;
1279 static EXTR *last_func_eptr;
1280
1281
1282 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1283 really should use bt_Void, but this causes the current ecoff GDB to
1284 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1285 2.0) doesn't understand it, even though the compiler generates it.
1286 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1287 suite, but for now go with what works. */
1288
1289 static bt_t map_coff_types[ (int)T_MAX ] = {
1290 bt_Nil, /* T_NULL */
1291 bt_Nil, /* T_ARG */
1292 bt_Char, /* T_CHAR */
1293 bt_Short, /* T_SHORT */
1294 bt_Int, /* T_INT */
1295 bt_Long, /* T_LONG */
1296 bt_Float, /* T_FLOAT */
1297 bt_Double, /* T_DOUBLE */
1298 bt_Struct, /* T_STRUCT */
1299 bt_Union, /* T_UNION */
1300 bt_Enum, /* T_ENUM */
1301 bt_Enum, /* T_MOE */
1302 bt_UChar, /* T_UCHAR */
1303 bt_UShort, /* T_USHORT */
1304 bt_UInt, /* T_UINT */
1305 bt_ULong /* T_ULONG */
1306 };
1307
1308 /* Convert COFF storage class to ECOFF storage class. */
1309 static sc_t map_coff_storage[ (int)C_MAX ] = {
1310 sc_Nil, /* 0: C_NULL */
1311 sc_Abs, /* 1: C_AUTO auto var */
1312 sc_Undefined, /* 2: C_EXT external */
1313 sc_Data, /* 3: C_STAT static */
1314 sc_Register, /* 4: C_REG register */
1315 sc_Undefined, /* 5: C_EXTDEF ??? */
1316 sc_Text, /* 6: C_LABEL label */
1317 sc_Text, /* 7: C_ULABEL user label */
1318 sc_Info, /* 8: C_MOS member of struct */
1319 sc_Abs, /* 9: C_ARG argument */
1320 sc_Info, /* 10: C_STRTAG struct tag */
1321 sc_Info, /* 11: C_MOU member of union */
1322 sc_Info, /* 12: C_UNTAG union tag */
1323 sc_Info, /* 13: C_TPDEF typedef */
1324 sc_Data, /* 14: C_USTATIC ??? */
1325 sc_Info, /* 15: C_ENTAG enum tag */
1326 sc_Info, /* 16: C_MOE member of enum */
1327 sc_Register, /* 17: C_REGPARM register parameter */
1328 sc_Bits, /* 18; C_FIELD bitfield */
1329 sc_Nil, /* 19 */
1330 sc_Nil, /* 20 */
1331 sc_Nil, /* 21 */
1332 sc_Nil, /* 22 */
1333 sc_Nil, /* 23 */
1334 sc_Nil, /* 24 */
1335 sc_Nil, /* 25 */
1336 sc_Nil, /* 26 */
1337 sc_Nil, /* 27 */
1338 sc_Nil, /* 28 */
1339 sc_Nil, /* 29 */
1340 sc_Nil, /* 30 */
1341 sc_Nil, /* 31 */
1342 sc_Nil, /* 32 */
1343 sc_Nil, /* 33 */
1344 sc_Nil, /* 34 */
1345 sc_Nil, /* 35 */
1346 sc_Nil, /* 36 */
1347 sc_Nil, /* 37 */
1348 sc_Nil, /* 38 */
1349 sc_Nil, /* 39 */
1350 sc_Nil, /* 40 */
1351 sc_Nil, /* 41 */
1352 sc_Nil, /* 42 */
1353 sc_Nil, /* 43 */
1354 sc_Nil, /* 44 */
1355 sc_Nil, /* 45 */
1356 sc_Nil, /* 46 */
1357 sc_Nil, /* 47 */
1358 sc_Nil, /* 48 */
1359 sc_Nil, /* 49 */
1360 sc_Nil, /* 50 */
1361 sc_Nil, /* 51 */
1362 sc_Nil, /* 52 */
1363 sc_Nil, /* 53 */
1364 sc_Nil, /* 54 */
1365 sc_Nil, /* 55 */
1366 sc_Nil, /* 56 */
1367 sc_Nil, /* 57 */
1368 sc_Nil, /* 58 */
1369 sc_Nil, /* 59 */
1370 sc_Nil, /* 60 */
1371 sc_Nil, /* 61 */
1372 sc_Nil, /* 62 */
1373 sc_Nil, /* 63 */
1374 sc_Nil, /* 64 */
1375 sc_Nil, /* 65 */
1376 sc_Nil, /* 66 */
1377 sc_Nil, /* 67 */
1378 sc_Nil, /* 68 */
1379 sc_Nil, /* 69 */
1380 sc_Nil, /* 70 */
1381 sc_Nil, /* 71 */
1382 sc_Nil, /* 72 */
1383 sc_Nil, /* 73 */
1384 sc_Nil, /* 74 */
1385 sc_Nil, /* 75 */
1386 sc_Nil, /* 76 */
1387 sc_Nil, /* 77 */
1388 sc_Nil, /* 78 */
1389 sc_Nil, /* 79 */
1390 sc_Nil, /* 80 */
1391 sc_Nil, /* 81 */
1392 sc_Nil, /* 82 */
1393 sc_Nil, /* 83 */
1394 sc_Nil, /* 84 */
1395 sc_Nil, /* 85 */
1396 sc_Nil, /* 86 */
1397 sc_Nil, /* 87 */
1398 sc_Nil, /* 88 */
1399 sc_Nil, /* 89 */
1400 sc_Nil, /* 90 */
1401 sc_Nil, /* 91 */
1402 sc_Nil, /* 92 */
1403 sc_Nil, /* 93 */
1404 sc_Nil, /* 94 */
1405 sc_Nil, /* 95 */
1406 sc_Nil, /* 96 */
1407 sc_Nil, /* 97 */
1408 sc_Nil, /* 98 */
1409 sc_Nil, /* 99 */
1410 sc_Text, /* 100: C_BLOCK block start/end */
1411 sc_Text, /* 101: C_FCN function start/end */
1412 sc_Info, /* 102: C_EOS end of struct/union/enum */
1413 sc_Nil, /* 103: C_FILE file start */
1414 sc_Nil, /* 104: C_LINE line number */
1415 sc_Nil, /* 105: C_ALIAS combined type info */
1416 sc_Nil, /* 106: C_HIDDEN ??? */
1417 };
1418
1419 /* Convert COFF storage class to ECOFF symbol type. */
1420 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1421 st_Nil, /* 0: C_NULL */
1422 st_Local, /* 1: C_AUTO auto var */
1423 st_Global, /* 2: C_EXT external */
1424 st_Static, /* 3: C_STAT static */
1425 st_Local, /* 4: C_REG register */
1426 st_Global, /* 5: C_EXTDEF ??? */
1427 st_Label, /* 6: C_LABEL label */
1428 st_Label, /* 7: C_ULABEL user label */
1429 st_Member, /* 8: C_MOS member of struct */
1430 st_Param, /* 9: C_ARG argument */
1431 st_Block, /* 10: C_STRTAG struct tag */
1432 st_Member, /* 11: C_MOU member of union */
1433 st_Block, /* 12: C_UNTAG union tag */
1434 st_Typedef, /* 13: C_TPDEF typedef */
1435 st_Static, /* 14: C_USTATIC ??? */
1436 st_Block, /* 15: C_ENTAG enum tag */
1437 st_Member, /* 16: C_MOE member of enum */
1438 st_Param, /* 17: C_REGPARM register parameter */
1439 st_Member, /* 18; C_FIELD bitfield */
1440 st_Nil, /* 19 */
1441 st_Nil, /* 20 */
1442 st_Nil, /* 21 */
1443 st_Nil, /* 22 */
1444 st_Nil, /* 23 */
1445 st_Nil, /* 24 */
1446 st_Nil, /* 25 */
1447 st_Nil, /* 26 */
1448 st_Nil, /* 27 */
1449 st_Nil, /* 28 */
1450 st_Nil, /* 29 */
1451 st_Nil, /* 30 */
1452 st_Nil, /* 31 */
1453 st_Nil, /* 32 */
1454 st_Nil, /* 33 */
1455 st_Nil, /* 34 */
1456 st_Nil, /* 35 */
1457 st_Nil, /* 36 */
1458 st_Nil, /* 37 */
1459 st_Nil, /* 38 */
1460 st_Nil, /* 39 */
1461 st_Nil, /* 40 */
1462 st_Nil, /* 41 */
1463 st_Nil, /* 42 */
1464 st_Nil, /* 43 */
1465 st_Nil, /* 44 */
1466 st_Nil, /* 45 */
1467 st_Nil, /* 46 */
1468 st_Nil, /* 47 */
1469 st_Nil, /* 48 */
1470 st_Nil, /* 49 */
1471 st_Nil, /* 50 */
1472 st_Nil, /* 51 */
1473 st_Nil, /* 52 */
1474 st_Nil, /* 53 */
1475 st_Nil, /* 54 */
1476 st_Nil, /* 55 */
1477 st_Nil, /* 56 */
1478 st_Nil, /* 57 */
1479 st_Nil, /* 58 */
1480 st_Nil, /* 59 */
1481 st_Nil, /* 60 */
1482 st_Nil, /* 61 */
1483 st_Nil, /* 62 */
1484 st_Nil, /* 63 */
1485 st_Nil, /* 64 */
1486 st_Nil, /* 65 */
1487 st_Nil, /* 66 */
1488 st_Nil, /* 67 */
1489 st_Nil, /* 68 */
1490 st_Nil, /* 69 */
1491 st_Nil, /* 70 */
1492 st_Nil, /* 71 */
1493 st_Nil, /* 72 */
1494 st_Nil, /* 73 */
1495 st_Nil, /* 74 */
1496 st_Nil, /* 75 */
1497 st_Nil, /* 76 */
1498 st_Nil, /* 77 */
1499 st_Nil, /* 78 */
1500 st_Nil, /* 79 */
1501 st_Nil, /* 80 */
1502 st_Nil, /* 81 */
1503 st_Nil, /* 82 */
1504 st_Nil, /* 83 */
1505 st_Nil, /* 84 */
1506 st_Nil, /* 85 */
1507 st_Nil, /* 86 */
1508 st_Nil, /* 87 */
1509 st_Nil, /* 88 */
1510 st_Nil, /* 89 */
1511 st_Nil, /* 90 */
1512 st_Nil, /* 91 */
1513 st_Nil, /* 92 */
1514 st_Nil, /* 93 */
1515 st_Nil, /* 94 */
1516 st_Nil, /* 95 */
1517 st_Nil, /* 96 */
1518 st_Nil, /* 97 */
1519 st_Nil, /* 98 */
1520 st_Nil, /* 99 */
1521 st_Block, /* 100: C_BLOCK block start/end */
1522 st_Proc, /* 101: C_FCN function start/end */
1523 st_End, /* 102: C_EOS end of struct/union/enum */
1524 st_File, /* 103: C_FILE file start */
1525 st_Nil, /* 104: C_LINE line number */
1526 st_Nil, /* 105: C_ALIAS combined type info */
1527 st_Nil, /* 106: C_HIDDEN ??? */
1528 };
1529
1530 /* Map COFF derived types to ECOFF type qualifiers. */
1531 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1532 tq_Nil, /* 0: DT_NON no more qualifiers */
1533 tq_Ptr, /* 1: DT_PTR pointer */
1534 tq_Proc, /* 2: DT_FCN function */
1535 tq_Array, /* 3: DT_ARY array */
1536 };
1537
1538
1539 /* Keep track of different sized allocation requests. */
1540 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1541
1542 \f
1543 /* Pointers and such to the original symbol table that is read in. */
1544 static struct filehdr orig_file_header; /* global object file header */
1545
1546 static HDRR orig_sym_hdr; /* symbolic header on input */
1547 static char *orig_linenum; /* line numbers */
1548 static DNR *orig_dense; /* dense numbers */
1549 static PDR *orig_procs; /* procedures */
1550 static SYMR *orig_local_syms; /* local symbols */
1551 static OPTR *orig_opt_syms; /* optimization symbols */
1552 static AUXU *orig_aux_syms; /* auxiliary symbols */
1553 static char *orig_local_strs; /* local strings */
1554 static char *orig_ext_strs; /* external strings */
1555 static FDR *orig_files; /* file descriptors */
1556 static symint_t *orig_rfds; /* relative file desc's */
1557 static EXTR *orig_ext_syms; /* external symbols */
1558
1559 /* Macros to convert an index into a given object within the original
1560 symbol table. */
1561 #define CHECK(num,max,str) \
1562 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1563
1564 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1565 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1566 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1567 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1568 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1569 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1570 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1571 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1572 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1573 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1574 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1575
1576 /* Various other statics. */
1577 static HDRR symbolic_header; /* symbolic header */
1578 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1579 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1580 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1581 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1582 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1583 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1584 static long file_offset = 0; /* current file offset */
1585 static long max_file_offset = 0; /* maximum file offset */
1586 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1587 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1588 static char *progname = (char *) 0; /* program name for errors */
1589 static char *input_name = "stdin"; /* name of input file */
1590 static char *object_name = (char *) 0; /* tmp. name of object file */
1591 static char *obj_in_name = (char *) 0; /* name of input object file */
1592 static char *cur_line_start = (char *) 0; /* current line read in */
1593 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1594 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1595 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1596 static long line_number = 0; /* current input line number */
1597 static int debug = 0; /* trace functions */
1598 static int version = 0; /* print version # */
1599 static int had_errors = 0; /* != 0 if errors were found */
1600 static int rename_output = 0; /* != 0 if rename output file*/
1601 static int delete_input = 0; /* != 0 if delete input after done */
1602 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1603
1604
1605 /* Pseudo symbol to use when putting stabs into the symbol table. */
1606 #ifndef STABS_SYMBOL
1607 #define STABS_SYMBOL "@stabs"
1608 #endif
1609
1610 static char stabs_symbol[] = STABS_SYMBOL;
1611
1612 \f
1613 /* Forward reference for functions. See the definition for more details. */
1614
1615 #ifndef STATIC
1616 #define STATIC static
1617 #endif
1618
1619 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1620
1621 STATIC shash_t *hash_string __proto((const char *,
1622 Ptrdiff_t,
1623 shash_t **,
1624 symint_t *));
1625
1626 STATIC symint_t add_string __proto((varray_t *,
1627 shash_t **,
1628 const char *,
1629 const char *,
1630 shash_t **));
1631
1632 STATIC symint_t add_local_symbol
1633 __proto((const char *,
1634 const char *,
1635 st_t,
1636 sc_t,
1637 symint_t,
1638 symint_t));
1639
1640 STATIC symint_t add_ext_symbol __proto((const char *,
1641 const char *,
1642 st_t,
1643 sc_t,
1644 long,
1645 symint_t,
1646 int));
1647
1648 STATIC symint_t add_aux_sym_symint
1649 __proto((symint_t));
1650
1651 STATIC symint_t add_aux_sym_rndx
1652 __proto((int, symint_t));
1653
1654 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1655 hash_state_t,
1656 thash_t **));
1657
1658 STATIC tag_t * get_tag __proto((const char *,
1659 const char *,
1660 symint_t,
1661 bt_t));
1662
1663 STATIC void add_unknown_tag __proto((tag_t *));
1664
1665 STATIC void add_procedure __proto((const char *,
1666 const char *));
1667
1668 STATIC void add_file __proto((const char *,
1669 const char *));
1670
1671 STATIC void add_bytes __proto((varray_t *,
1672 char *,
1673 Size_t));
1674
1675 STATIC void add_varray_page __proto((varray_t *));
1676
1677 STATIC void update_headers __proto((void));
1678
1679 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1680 STATIC void write_object __proto((void));
1681 STATIC char *st_to_string __proto((st_t));
1682 STATIC char *sc_to_string __proto((sc_t));
1683 STATIC char *read_line __proto((void));
1684 STATIC void parse_input __proto((void));
1685 STATIC void mark_stabs __proto((const char *));
1686 STATIC void parse_begin __proto((const char *));
1687 STATIC void parse_bend __proto((const char *));
1688 STATIC void parse_def __proto((const char *));
1689 STATIC void parse_end __proto((const char *));
1690 STATIC void parse_ent __proto((const char *));
1691 STATIC void parse_file __proto((const char *));
1692 STATIC void parse_stabs_common
1693 __proto((const char *, const char *, const char *));
1694 STATIC void parse_stabs __proto((const char *));
1695 STATIC void parse_stabn __proto((const char *));
1696 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1697 STATIC void copy_object __proto((void));
1698
1699 STATIC void catch_signal __proto((int));
1700 STATIC page_t *allocate_page __proto((void));
1701
1702 STATIC page_t *allocate_multiple_pages
1703 __proto((Size_t));
1704
1705 STATIC void free_multiple_pages
1706 __proto((page_t *, Size_t));
1707
1708 #ifndef MALLOC_CHECK
1709 STATIC page_t *allocate_cluster
1710 __proto((Size_t));
1711 #endif
1712
1713 STATIC forward_t *allocate_forward __proto((void));
1714 STATIC scope_t *allocate_scope __proto((void));
1715 STATIC shash_t *allocate_shash __proto((void));
1716 STATIC tag_t *allocate_tag __proto((void));
1717 STATIC thash_t *allocate_thash __proto((void));
1718 STATIC thead_t *allocate_thead __proto((void));
1719 STATIC vlinks_t *allocate_vlinks __proto((void));
1720
1721 STATIC void free_forward __proto((forward_t *));
1722 STATIC void free_scope __proto((scope_t *));
1723 STATIC void free_tag __proto((tag_t *));
1724 STATIC void free_thead __proto((thead_t *));
1725
1726 STATIC char *local_index __proto((const char *, int));
1727 STATIC char *local_rindex __proto((const char *, int));
1728
1729 extern char *mktemp __proto((char *));
1730 extern long strtol __proto((const char *, char **, int));
1731
1732 extern char *optarg;
1733 extern int optind;
1734 extern int opterr;
1735 extern char *version_string;
1736 #ifndef NO_SYS_SIGLIST
1737 #ifndef SYS_SIGLIST_DECLARED
1738 extern char *sys_siglist[NSIG + 1];
1739 #endif
1740 #endif
1741
1742 \f
1743 /* List of assembler pseudo ops and beginning sequences that need
1744 special actions. Someday, this should be a hash table, and such,
1745 but for now a linear list of names and calls to memcmp will
1746 do...... */
1747
1748 typedef struct _pseudo_ops {
1749 const char *name; /* pseudo-op in ascii */
1750 int len; /* length of name to compare */
1751 void (*func) __proto((const char *)); /* function to handle line */
1752 } pseudo_ops_t;
1753
1754 static pseudo_ops_t pseudo_ops[] = {
1755 { "#.def", sizeof("#.def")-1, parse_def },
1756 { "#.begin", sizeof("#.begin")-1, parse_begin },
1757 { "#.bend", sizeof("#.bend")-1, parse_bend },
1758 { ".end", sizeof(".end")-1, parse_end },
1759 { ".ent", sizeof(".ent")-1, parse_ent },
1760 { ".file", sizeof(".file")-1, parse_file },
1761 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1762 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1763 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1764 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1765 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1766 };
1767
1768 \f
1769 /* Add a page to a varray object. */
1770
1771 STATIC void
1772 add_varray_page (vp)
1773 varray_t *vp; /* varray to add page to */
1774 {
1775 vlinks_t *new_links = allocate_vlinks ();
1776
1777 #ifdef MALLOC_CHECK
1778 if (vp->object_size > 1)
1779 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1780 else
1781 #endif
1782 new_links->datum = allocate_page ();
1783
1784 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1785 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1786
1787 new_links->start_index = vp->num_allocated;
1788 vp->objects_last_page = 0;
1789
1790 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1791 vp->first = vp->last = new_links;
1792 else
1793 { /* 2nd or greater allocation */
1794 new_links->prev = vp->last;
1795 vp->last->next = new_links;
1796 vp->last = new_links;
1797 }
1798 }
1799
1800 \f
1801 /* Compute hash code (from tree.c) */
1802
1803 #define HASHBITS 30
1804
1805 STATIC shash_t *
1806 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1807 const char *text; /* ptr to text to hash */
1808 Ptrdiff_t hash_len; /* length of the text */
1809 shash_t **hash_tbl; /* hash table */
1810 symint_t *ret_hash_index; /* ptr to store hash index */
1811 {
1812 register unsigned long hi;
1813 register Ptrdiff_t i;
1814 register shash_t *ptr;
1815 register int first_ch = *text;
1816
1817 hi = hash_len;
1818 for (i = 0; i < hash_len; i++)
1819 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1820
1821 hi &= (1 << HASHBITS) - 1;
1822 hi %= SHASH_SIZE;
1823
1824 if (ret_hash_index != (symint_t *) 0)
1825 *ret_hash_index = hi;
1826
1827 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1828 if (hash_len == ptr->len
1829 && first_ch == ptr->string[0]
1830 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1831 break;
1832
1833 return ptr;
1834 }
1835
1836 \f
1837 /* Add a string (and null pad) to one of the string tables. A
1838 consequence of hashing strings, is that we don't let strings
1839 cross page boundaries. The extra nulls will be ignored. */
1840
1841 STATIC symint_t
1842 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1843 varray_t *vp; /* string virtual array */
1844 shash_t **hash_tbl; /* ptr to hash table */
1845 const char *start; /* 1st byte in string */
1846 const char *end_p1; /* 1st byte after string */
1847 shash_t **ret_hash; /* return hash pointer */
1848 {
1849 register Ptrdiff_t len = end_p1 - start;
1850 register shash_t *hash_ptr;
1851 symint_t hi;
1852
1853 if (len >= PAGE_USIZE)
1854 fatal ("String too big (%ld bytes)", (long) len);
1855
1856 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1857 if (hash_ptr == (shash_t *) 0)
1858 {
1859 register char *p;
1860
1861 if (vp->objects_last_page + len >= PAGE_USIZE)
1862 {
1863 vp->num_allocated
1864 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1865 add_varray_page (vp);
1866 }
1867
1868 hash_ptr = allocate_shash ();
1869 hash_ptr->next = hash_tbl[hi];
1870 hash_tbl[hi] = hash_ptr;
1871
1872 hash_ptr->len = len;
1873 hash_ptr->indx = vp->num_allocated;
1874 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1875
1876 vp->objects_last_page += len+1;
1877 vp->num_allocated += len+1;
1878
1879 while (len-- > 0)
1880 *p++ = *start++;
1881
1882 *p = '\0';
1883 }
1884
1885 if (ret_hash != (shash_t **) 0)
1886 *ret_hash = hash_ptr;
1887
1888 return hash_ptr->indx;
1889 }
1890
1891 \f
1892 /* Add a local symbol. */
1893
1894 STATIC symint_t
1895 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1896 const char *str_start; /* first byte in string */
1897 const char *str_end_p1; /* first byte after string */
1898 st_t type; /* symbol type */
1899 sc_t storage; /* storage class */
1900 symint_t value; /* value of symbol */
1901 symint_t indx; /* index to local/aux. syms */
1902 {
1903 register symint_t ret;
1904 register SYMR *psym;
1905 register scope_t *pscope;
1906 register thead_t *ptag_head;
1907 register tag_t *ptag;
1908 register tag_t *ptag_next;
1909 register varray_t *vp = &cur_file_ptr->symbols;
1910 register int scope_delta = 0;
1911 shash_t *hash_ptr = (shash_t *) 0;
1912
1913 if (vp->objects_last_page == vp->objects_per_page)
1914 add_varray_page (vp);
1915
1916 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1917
1918 psym->value = value;
1919 psym->st = (unsigned) type;
1920 psym->sc = (unsigned) storage;
1921 psym->index = indx;
1922 psym->iss = (str_start == (const char *) 0)
1923 ? 0
1924 : add_string (&cur_file_ptr->strings,
1925 &cur_file_ptr->shash_head[0],
1926 str_start,
1927 str_end_p1,
1928 &hash_ptr);
1929
1930 ret = vp->num_allocated++;
1931
1932 if (MIPS_IS_STAB(psym))
1933 return ret;
1934
1935 /* Save the symbol within the hash table if this is a static
1936 item, and it has a name. */
1937 if (hash_ptr != (shash_t *) 0
1938 && (type == st_Global || type == st_Static || type == st_Label
1939 || type == st_Proc || type == st_StaticProc))
1940 hash_ptr->sym_ptr = psym;
1941
1942 /* push or pop a scope if appropriate. */
1943 switch (type)
1944 {
1945 default:
1946 break;
1947
1948 case st_File: /* beginning of file */
1949 case st_Proc: /* procedure */
1950 case st_StaticProc: /* static procedure */
1951 case st_Block: /* begin scope */
1952 pscope = allocate_scope ();
1953 pscope->prev = cur_file_ptr->cur_scope;
1954 pscope->lsym = psym;
1955 pscope->lnumber = ret;
1956 pscope->type = type;
1957 cur_file_ptr->cur_scope = pscope;
1958
1959 if (type != st_File)
1960 scope_delta = 1;
1961
1962 /* For every block type except file, struct, union, or
1963 enumeration blocks, push a level on the tag stack. We omit
1964 file types, so that tags can span file boundaries. */
1965 if (type != st_File && storage != sc_Info)
1966 {
1967 ptag_head = allocate_thead ();
1968 ptag_head->first_tag = 0;
1969 ptag_head->prev = cur_tag_head;
1970 cur_tag_head = ptag_head;
1971 }
1972 break;
1973
1974 case st_End:
1975 pscope = cur_file_ptr->cur_scope;
1976 if (pscope == (scope_t *)0)
1977 error ("internal error, too many st_End's");
1978
1979 else
1980 {
1981 st_t begin_type = (st_t) pscope->lsym->st;
1982
1983 if (begin_type != st_File)
1984 scope_delta = -1;
1985
1986 /* Except for file, structure, union, or enumeration end
1987 blocks remove all tags created within this scope. */
1988 if (begin_type != st_File && storage != sc_Info)
1989 {
1990 ptag_head = cur_tag_head;
1991 cur_tag_head = ptag_head->prev;
1992
1993 for (ptag = ptag_head->first_tag;
1994 ptag != (tag_t *) 0;
1995 ptag = ptag_next)
1996 {
1997 if (ptag->forward_ref != (forward_t *) 0)
1998 add_unknown_tag (ptag);
1999
2000 ptag_next = ptag->same_block;
2001 ptag->hash_ptr->tag_ptr = ptag->same_name;
2002 free_tag (ptag);
2003 }
2004
2005 free_thead (ptag_head);
2006 }
2007
2008 cur_file_ptr->cur_scope = pscope->prev;
2009 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2010
2011 if (storage != sc_Info)
2012 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2013
2014 if (begin_type == st_File || begin_type == st_Block)
2015 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2016
2017 /* Functions push two or more aux words as follows:
2018 1st word: index+1 of the end symbol
2019 2nd word: type of the function (plus any aux words needed).
2020 Also, tie the external pointer back to the function begin symbol. */
2021 else
2022 {
2023 symint_t type;
2024 pscope->lsym->index = add_aux_sym_symint (ret+1);
2025 type = add_aux_sym_tir (&last_func_type_info,
2026 hash_no,
2027 &cur_file_ptr->thash_head[0]);
2028 if (last_func_eptr)
2029 {
2030 last_func_eptr->ifd = cur_file_ptr->file_index;
2031
2032 /* The index for an external st_Proc symbol is the index
2033 of the st_Proc symbol in the local symbol table. */
2034 last_func_eptr->asym.index = psym->index;
2035 }
2036 }
2037
2038 free_scope (pscope);
2039 }
2040 }
2041
2042 cur_file_ptr->nested_scopes += scope_delta;
2043
2044 if (debug && type != st_File
2045 && (debug > 2 || type == st_Block || type == st_End
2046 || type == st_Proc || type == st_StaticProc))
2047 {
2048 char *sc_str = sc_to_string (storage);
2049 char *st_str = st_to_string (type);
2050 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2051
2052 fprintf (stderr,
2053 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2054 value, depth, sc_str);
2055
2056 if (str_start && str_end_p1 - str_start > 0)
2057 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2058 else
2059 {
2060 Size_t len = strlen (st_str);
2061 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2062 }
2063 }
2064
2065 return ret;
2066 }
2067
2068 \f
2069 /* Add an external symbol. */
2070
2071 STATIC symint_t
2072 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2073 const char *str_start; /* first byte in string */
2074 const char *str_end_p1; /* first byte after string */
2075 st_t type; /* symbol type */
2076 sc_t storage; /* storage class */
2077 long value; /* value of symbol */
2078 symint_t indx; /* index to local/aux. syms */
2079 int ifd; /* file index */
2080 {
2081 register EXTR *psym;
2082 register varray_t *vp = &ext_symbols;
2083 shash_t *hash_ptr = (shash_t *) 0;
2084
2085 if (debug > 1)
2086 {
2087 char *sc_str = sc_to_string (storage);
2088 char *st_str = st_to_string (type);
2089
2090 fprintf (stderr,
2091 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2092 value, ifd, sc_str);
2093
2094 if (str_start && str_end_p1 - str_start > 0)
2095 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2096 else
2097 fprintf (stderr, " st= %s\n", st_str);
2098 }
2099
2100 if (vp->objects_last_page == vp->objects_per_page)
2101 add_varray_page (vp);
2102
2103 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2104
2105 psym->ifd = ifd;
2106 psym->asym.value = value;
2107 psym->asym.st = (unsigned) type;
2108 psym->asym.sc = (unsigned) storage;
2109 psym->asym.index = indx;
2110 psym->asym.iss = (str_start == (const char *) 0)
2111 ? 0
2112 : add_string (&ext_strings,
2113 &ext_str_hash[0],
2114 str_start,
2115 str_end_p1,
2116 &hash_ptr);
2117
2118 hash_ptr->esym_ptr = psym;
2119 return vp->num_allocated++;
2120 }
2121
2122 \f
2123 /* Add an auxiliary symbol (passing a symint). */
2124
2125 STATIC symint_t
2126 add_aux_sym_symint (aux_word)
2127 symint_t aux_word; /* auxiliary information word */
2128 {
2129 register AUXU *aux_ptr;
2130 register efdr_t *file_ptr = cur_file_ptr;
2131 register varray_t *vp = &file_ptr->aux_syms;
2132
2133 if (vp->objects_last_page == vp->objects_per_page)
2134 add_varray_page (vp);
2135
2136 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2137 aux_ptr->isym = aux_word;
2138
2139 return vp->num_allocated++;
2140 }
2141
2142
2143 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2144
2145 STATIC symint_t
2146 add_aux_sym_rndx (file_index, sym_index)
2147 int file_index;
2148 symint_t sym_index;
2149 {
2150 register AUXU *aux_ptr;
2151 register efdr_t *file_ptr = cur_file_ptr;
2152 register varray_t *vp = &file_ptr->aux_syms;
2153
2154 if (vp->objects_last_page == vp->objects_per_page)
2155 add_varray_page (vp);
2156
2157 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2158 aux_ptr->rndx.rfd = file_index;
2159 aux_ptr->rndx.index = sym_index;
2160
2161 return vp->num_allocated++;
2162 }
2163
2164 \f
2165 /* Add an auxiliary symbol (passing the basic type and possibly
2166 type qualifiers). */
2167
2168 STATIC symint_t
2169 add_aux_sym_tir (t, state, hash_tbl)
2170 type_info_t *t; /* current type information */
2171 hash_state_t state; /* whether to hash type or not */
2172 thash_t **hash_tbl; /* pointer to hash table to use */
2173 {
2174 register AUXU *aux_ptr;
2175 register efdr_t *file_ptr = cur_file_ptr;
2176 register varray_t *vp = &file_ptr->aux_syms;
2177 static AUXU init_aux;
2178 symint_t ret;
2179 int i;
2180 AUXU aux;
2181
2182 aux = init_aux;
2183 aux.ti.bt = (int) t->basic_type;
2184 aux.ti.continued = 0;
2185 aux.ti.fBitfield = t->bitfield;
2186
2187 aux.ti.tq0 = (int) t->type_qualifiers[0];
2188 aux.ti.tq1 = (int) t->type_qualifiers[1];
2189 aux.ti.tq2 = (int) t->type_qualifiers[2];
2190 aux.ti.tq3 = (int) t->type_qualifiers[3];
2191 aux.ti.tq4 = (int) t->type_qualifiers[4];
2192 aux.ti.tq5 = (int) t->type_qualifiers[5];
2193
2194
2195 /* For anything that adds additional information, we must not hash,
2196 so check here, and reset our state. */
2197
2198 if (state != hash_no
2199 && (t->type_qualifiers[0] == tq_Array
2200 || t->type_qualifiers[1] == tq_Array
2201 || t->type_qualifiers[2] == tq_Array
2202 || t->type_qualifiers[3] == tq_Array
2203 || t->type_qualifiers[4] == tq_Array
2204 || t->type_qualifiers[5] == tq_Array
2205 || t->basic_type == bt_Struct
2206 || t->basic_type == bt_Union
2207 || t->basic_type == bt_Enum
2208 || t->bitfield
2209 || t->num_dims > 0))
2210 state = hash_no;
2211
2212 /* See if we can hash this type, and save some space, but some types
2213 can't be hashed (because they contain arrays or continuations),
2214 and others can be put into the hash list, but cannot use existing
2215 types because other aux entries precede this one. */
2216
2217 if (state != hash_no)
2218 {
2219 register thash_t *hash_ptr;
2220 register symint_t hi;
2221
2222 hi = aux.isym & ((1 << HASHBITS) - 1);
2223 hi %= THASH_SIZE;
2224
2225 for (hash_ptr = hash_tbl[hi];
2226 hash_ptr != (thash_t *) 0;
2227 hash_ptr = hash_ptr->next)
2228 {
2229 if (aux.isym == hash_ptr->type.isym)
2230 break;
2231 }
2232
2233 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2234 return hash_ptr->indx;
2235
2236 if (hash_ptr == (thash_t *) 0)
2237 {
2238 hash_ptr = allocate_thash ();
2239 hash_ptr->next = hash_tbl[hi];
2240 hash_ptr->type = aux;
2241 hash_ptr->indx = vp->num_allocated;
2242 hash_tbl[hi] = hash_ptr;
2243 }
2244 }
2245
2246 /* Everything is set up, add the aux symbol. */
2247 if (vp->objects_last_page == vp->objects_per_page)
2248 add_varray_page (vp);
2249
2250 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2251 *aux_ptr = aux;
2252
2253 ret = vp->num_allocated++;
2254
2255 /* Add bitfield length if it exists.
2256
2257 NOTE: Mips documentation claims bitfield goes at the end of the
2258 AUX record, but the DECstation compiler emits it here.
2259 (This would only make a difference for enum bitfields.)
2260
2261 Also note: We use the last size given since gcc may emit 2
2262 for an enum bitfield. */
2263
2264 if (t->bitfield)
2265 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2266
2267
2268 /* Add tag information if needed. Structure, union, and enum
2269 references add 2 aux symbols: a [file index, symbol index]
2270 pointer to the structure type, and the current file index. */
2271
2272 if (t->basic_type == bt_Struct
2273 || t->basic_type == bt_Union
2274 || t->basic_type == bt_Enum)
2275 {
2276 register symint_t file_index = t->tag_ptr->ifd;
2277 register symint_t sym_index = t->tag_ptr->indx;
2278
2279 if (t->unknown_tag)
2280 {
2281 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2282 (void) add_aux_sym_symint ((symint_t)-1);
2283 }
2284 else if (sym_index != indexNil)
2285 {
2286 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2287 (void) add_aux_sym_symint (file_index);
2288 }
2289 else
2290 {
2291 register forward_t *forward_ref = allocate_forward ();
2292
2293 forward_ref->type_ptr = aux_ptr;
2294 forward_ref->next = t->tag_ptr->forward_ref;
2295 t->tag_ptr->forward_ref = forward_ref;
2296
2297 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2298 forward_ref->index_ptr
2299 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2300
2301 (void) add_aux_sym_symint (file_index);
2302 forward_ref->ifd_ptr
2303 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2304 }
2305 }
2306
2307 /* Add information about array bounds if they exist. */
2308 for (i = 0; i < t->num_dims; i++)
2309 {
2310 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2311 cur_file_ptr->int_type);
2312
2313 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2314 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2315 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2316 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2317 ? 0
2318 : (t->sizes[i] * 8) / t->dimensions[i]);
2319 };
2320
2321 /* NOTE: Mips documentation claims that the bitfield width goes here.
2322 But it needs to be emitted earlier. */
2323
2324 return ret;
2325 }
2326
2327 \f
2328 /* Add a tag to the tag table (unless it already exists). */
2329
2330 STATIC tag_t *
2331 get_tag (tag_start, tag_end_p1, indx, basic_type)
2332 const char *tag_start; /* 1st byte of tag name */
2333 const char *tag_end_p1; /* 1st byte after tag name */
2334 symint_t indx; /* index of tag start block */
2335 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2336 {
2337 shash_t *hash_ptr;
2338 tag_t *tag_ptr;
2339 hash_ptr = hash_string (tag_start,
2340 tag_end_p1 - tag_start,
2341 &tag_hash[0],
2342 (symint_t *) 0);
2343
2344 if (hash_ptr != (shash_t *) 0
2345 && hash_ptr->tag_ptr != (tag_t *) 0)
2346 {
2347 tag_ptr = hash_ptr->tag_ptr;
2348 if (indx != indexNil)
2349 {
2350 tag_ptr->basic_type = basic_type;
2351 tag_ptr->ifd = cur_file_ptr->file_index;
2352 tag_ptr->indx = indx;
2353 }
2354 return tag_ptr;
2355 }
2356
2357 (void) add_string (&tag_strings,
2358 &tag_hash[0],
2359 tag_start,
2360 tag_end_p1,
2361 &hash_ptr);
2362
2363 tag_ptr = allocate_tag ();
2364 tag_ptr->forward_ref = (forward_t *) 0;
2365 tag_ptr->hash_ptr = hash_ptr;
2366 tag_ptr->same_name = hash_ptr->tag_ptr;
2367 tag_ptr->basic_type = basic_type;
2368 tag_ptr->indx = indx;
2369 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2370 tag_ptr->same_block = cur_tag_head->first_tag;
2371
2372 cur_tag_head->first_tag = tag_ptr;
2373 hash_ptr->tag_ptr = tag_ptr;
2374
2375 return tag_ptr;
2376 }
2377
2378 \f
2379 /* Add an unknown {struct, union, enum} tag. */
2380
2381 STATIC void
2382 add_unknown_tag (ptag)
2383 tag_t *ptag; /* pointer to tag information */
2384 {
2385 shash_t *hash_ptr = ptag->hash_ptr;
2386 char *name_start = hash_ptr->string;
2387 char *name_end_p1 = name_start + hash_ptr->len;
2388 forward_t *f_next = ptag->forward_ref;
2389 forward_t *f_cur;
2390 int sym_index;
2391 int file_index = cur_file_ptr->file_index;
2392
2393 if (debug > 1)
2394 {
2395 char *agg_type = "{unknown aggregate type}";
2396 switch (ptag->basic_type)
2397 {
2398 case bt_Struct: agg_type = "struct"; break;
2399 case bt_Union: agg_type = "union"; break;
2400 case bt_Enum: agg_type = "enum"; break;
2401 default: break;
2402 }
2403
2404 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2405 hash_ptr->len, name_start);
2406 }
2407
2408 sym_index = add_local_symbol (name_start,
2409 name_end_p1,
2410 st_Block,
2411 sc_Info,
2412 (symint_t) 0,
2413 (symint_t) 0);
2414
2415 (void) add_local_symbol (name_start,
2416 name_end_p1,
2417 st_End,
2418 sc_Info,
2419 (symint_t) 0,
2420 (symint_t) 0);
2421
2422 while (f_next != (forward_t *) 0)
2423 {
2424 f_cur = f_next;
2425 f_next = f_next->next;
2426
2427 f_cur->ifd_ptr->isym = file_index;
2428 f_cur->index_ptr->rndx.index = sym_index;
2429
2430 free_forward (f_cur);
2431 }
2432
2433 return;
2434 }
2435
2436 \f
2437 /* Add a procedure to the current file's list of procedures, and record
2438 this is the current procedure. If the assembler created a PDR for
2439 this procedure, use that to initialize the current PDR. */
2440
2441 STATIC void
2442 add_procedure (func_start, func_end_p1)
2443 const char *func_start; /* 1st byte of func name */
2444 const char *func_end_p1; /* 1st byte after func name */
2445 {
2446 register PDR *new_proc_ptr;
2447 register efdr_t *file_ptr = cur_file_ptr;
2448 register varray_t *vp = &file_ptr->procs;
2449 register symint_t value = 0;
2450 register st_t proc_type = st_Proc;
2451 register shash_t *shash_ptr = hash_string (func_start,
2452 func_end_p1 - func_start,
2453 &orig_str_hash[0],
2454 (symint_t *) 0);
2455
2456 if (debug)
2457 fputc ('\n', stderr);
2458
2459 if (vp->objects_last_page == vp->objects_per_page)
2460 add_varray_page (vp);
2461
2462 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2463
2464 vp->num_allocated++;
2465
2466
2467 /* Did the assembler create this procedure? If so, get the PDR information. */
2468 cur_oproc_ptr = (PDR *) 0;
2469 if (shash_ptr != (shash_t *) 0)
2470 {
2471 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2472 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2473
2474 if (old_proc_ptr != (PDR *) 0
2475 && sym_ptr != (SYMR *) 0
2476 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2477 {
2478 cur_oproc_begin = sym_ptr;
2479 cur_oproc_end = shash_ptr->end_ptr;
2480 value = sym_ptr->value;
2481
2482 cur_oproc_ptr = old_proc_ptr;
2483 proc_type = (st_t)sym_ptr->st;
2484 *new_proc_ptr = *old_proc_ptr; /* initialize */
2485 }
2486 }
2487
2488 if (cur_oproc_ptr == (PDR *) 0)
2489 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2490
2491 /* Determine the start of symbols. */
2492 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2493
2494 /* Push the start of the function. */
2495 (void) add_local_symbol (func_start, func_end_p1,
2496 proc_type, sc_Text,
2497 value,
2498 (symint_t) 0);
2499 }
2500
2501 \f
2502 /* Add a new filename, and set up all of the file relative
2503 virtual arrays (strings, symbols, aux syms, etc.). Record
2504 where the current file structure lives. */
2505
2506 STATIC void
2507 add_file (file_start, file_end_p1)
2508 const char *file_start; /* first byte in string */
2509 const char *file_end_p1; /* first byte after string */
2510 {
2511 static char zero_bytes[2] = { '\0', '\0' };
2512
2513 register Ptrdiff_t len = file_end_p1 - file_start;
2514 register int first_ch = *file_start;
2515 register efdr_t *file_ptr;
2516
2517 if (debug)
2518 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2519
2520 /* See if the file has already been created. */
2521 for (file_ptr = first_file;
2522 file_ptr != (efdr_t *) 0;
2523 file_ptr = file_ptr->next_file)
2524 {
2525 if (first_ch == file_ptr->name[0]
2526 && file_ptr->name[len] == '\0'
2527 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2528 {
2529 cur_file_ptr = file_ptr;
2530 break;
2531 }
2532 }
2533
2534 /* If this is a new file, create it. */
2535 if (file_ptr == (efdr_t *) 0)
2536 {
2537 if (file_desc.objects_last_page == file_desc.objects_per_page)
2538 add_varray_page (&file_desc);
2539
2540 file_ptr = cur_file_ptr
2541 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2542 *file_ptr = init_file;
2543
2544 file_ptr->file_index = file_desc.num_allocated++;
2545
2546 /* Allocate the string hash table. */
2547 file_ptr->shash_head = (shash_t **) allocate_page ();
2548
2549 /* Make sure 0 byte in string table is null */
2550 add_string (&file_ptr->strings,
2551 &file_ptr->shash_head[0],
2552 &zero_bytes[0],
2553 &zero_bytes[0],
2554 (shash_t **) 0);
2555
2556 if (file_end_p1 - file_start > PAGE_USIZE-2)
2557 fatal ("Filename goes over one page boundary.");
2558
2559 /* Push the start of the filename. We assume that the filename
2560 will be stored at string offset 1. */
2561 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2562 (symint_t) 0, (symint_t) 0);
2563 file_ptr->fdr.rss = 1;
2564 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2565 file_ptr->name_len = file_end_p1 - file_start;
2566
2567 /* Update the linked list of file descriptors. */
2568 *last_file_ptr = file_ptr;
2569 last_file_ptr = &file_ptr->next_file;
2570
2571 /* Add void & int types to the file (void should be first to catch
2572 errant 0's within the index fields). */
2573 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2574 hash_yes,
2575 &cur_file_ptr->thash_head[0]);
2576
2577 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2578 hash_yes,
2579 &cur_file_ptr->thash_head[0]);
2580 }
2581 }
2582
2583 \f
2584 /* Add a stream of random bytes to a varray. */
2585
2586 STATIC void
2587 add_bytes (vp, input_ptr, nitems)
2588 varray_t *vp; /* virtual array to add too */
2589 char *input_ptr; /* start of the bytes */
2590 Size_t nitems; /* # items to move */
2591 {
2592 register Size_t move_items;
2593 register Size_t move_bytes;
2594 register char *ptr;
2595
2596 while (nitems > 0)
2597 {
2598 if (vp->objects_last_page >= vp->objects_per_page)
2599 add_varray_page (vp);
2600
2601 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2602 move_items = vp->objects_per_page - vp->objects_last_page;
2603 if (move_items > nitems)
2604 move_items = nitems;
2605
2606 move_bytes = move_items * vp->object_size;
2607 nitems -= move_items;
2608
2609 if (move_bytes >= 32)
2610 {
2611 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2612 input_ptr += move_bytes;
2613 }
2614 else
2615 {
2616 while (move_bytes-- > 0)
2617 *ptr++ = *input_ptr++;
2618 }
2619 }
2620 }
2621
2622 \f
2623 /* Convert storage class to string. */
2624
2625 STATIC char *
2626 sc_to_string(storage_class)
2627 sc_t storage_class;
2628 {
2629 switch(storage_class)
2630 {
2631 case sc_Nil: return "Nil,";
2632 case sc_Text: return "Text,";
2633 case sc_Data: return "Data,";
2634 case sc_Bss: return "Bss,";
2635 case sc_Register: return "Register,";
2636 case sc_Abs: return "Abs,";
2637 case sc_Undefined: return "Undefined,";
2638 case sc_CdbLocal: return "CdbLocal,";
2639 case sc_Bits: return "Bits,";
2640 case sc_CdbSystem: return "CdbSystem,";
2641 case sc_RegImage: return "RegImage,";
2642 case sc_Info: return "Info,";
2643 case sc_UserStruct: return "UserStruct,";
2644 case sc_SData: return "SData,";
2645 case sc_SBss: return "SBss,";
2646 case sc_RData: return "RData,";
2647 case sc_Var: return "Var,";
2648 case sc_Common: return "Common,";
2649 case sc_SCommon: return "SCommon,";
2650 case sc_VarRegister: return "VarRegister,";
2651 case sc_Variant: return "Variant,";
2652 case sc_SUndefined: return "SUndefined,";
2653 case sc_Init: return "Init,";
2654 case sc_Max: return "Max,";
2655 }
2656
2657 return "???,";
2658 }
2659
2660 \f
2661 /* Convert symbol type to string. */
2662
2663 STATIC char *
2664 st_to_string(symbol_type)
2665 st_t symbol_type;
2666 {
2667 switch(symbol_type)
2668 {
2669 case st_Nil: return "Nil,";
2670 case st_Global: return "Global,";
2671 case st_Static: return "Static,";
2672 case st_Param: return "Param,";
2673 case st_Local: return "Local,";
2674 case st_Label: return "Label,";
2675 case st_Proc: return "Proc,";
2676 case st_Block: return "Block,";
2677 case st_End: return "End,";
2678 case st_Member: return "Member,";
2679 case st_Typedef: return "Typedef,";
2680 case st_File: return "File,";
2681 case st_RegReloc: return "RegReloc,";
2682 case st_Forward: return "Forward,";
2683 case st_StaticProc: return "StaticProc,";
2684 case st_Constant: return "Constant,";
2685 case st_Str: return "String,";
2686 case st_Number: return "Number,";
2687 case st_Expr: return "Expr,";
2688 case st_Type: return "Type,";
2689 case st_Max: return "Max,";
2690 }
2691
2692 return "???,";
2693 }
2694
2695 \f
2696 /* Read a line from standard input, and return the start of the buffer
2697 (which is grows if the line is too big). We split lines at the
2698 semi-colon, and return each logical line independently. */
2699
2700 STATIC char *
2701 read_line __proto((void))
2702 {
2703 static int line_split_p = 0;
2704 register int string_p = 0;
2705 register int comment_p = 0;
2706 register int ch;
2707 register char *ptr;
2708
2709 if (cur_line_start == (char *) 0)
2710 { /* allocate initial page */
2711 cur_line_start = (char *) allocate_page ();
2712 cur_line_alloc = PAGE_SIZE;
2713 }
2714
2715 if (!line_split_p)
2716 line_number++;
2717
2718 line_split_p = 0;
2719 cur_line_nbytes = 0;
2720
2721 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2722 {
2723 if (++cur_line_nbytes >= cur_line_alloc-1)
2724 {
2725 register int num_pages = cur_line_alloc / PAGE_SIZE;
2726 register char *old_buffer = cur_line_start;
2727
2728 cur_line_alloc += PAGE_SIZE;
2729 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2730 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2731
2732 ptr = cur_line_start + cur_line_nbytes - 1;
2733 }
2734
2735 if (ch == '\n')
2736 {
2737 *ptr++ = '\n';
2738 *ptr = '\0';
2739 cur_line_ptr = cur_line_start;
2740 return cur_line_ptr;
2741 }
2742
2743 else if (ch == '\0')
2744 error ("Null character found in input");
2745
2746 else if (!comment_p)
2747 {
2748 if (ch == '"')
2749 string_p = !string_p;
2750
2751 else if (ch == '#')
2752 comment_p++;
2753
2754 else if (ch == ';' && !string_p)
2755 {
2756 line_split_p = 1;
2757 *ptr++ = '\n';
2758 *ptr = '\0';
2759 cur_line_ptr = cur_line_start;
2760 return cur_line_ptr;
2761 }
2762 }
2763 }
2764
2765 if (ferror (stdin))
2766 pfatal_with_name (input_name);
2767
2768 cur_line_ptr = (char *) 0;
2769 return (char *) 0;
2770 }
2771
2772 \f
2773 /* Parse #.begin directives which have a label as the first argument
2774 which gives the location of the start of the block. */
2775
2776 STATIC void
2777 parse_begin (start)
2778 const char *start; /* start of directive */
2779 {
2780 const char *end_p1; /* end of label */
2781 int ch;
2782 shash_t *hash_ptr; /* hash pointer to lookup label */
2783
2784 if (cur_file_ptr == (efdr_t *) 0)
2785 {
2786 error ("#.begin directive without a preceding .file directive");
2787 return;
2788 }
2789
2790 if (cur_proc_ptr == (PDR *) 0)
2791 {
2792 error ("#.begin directive without a preceding .ent directive");
2793 return;
2794 }
2795
2796 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2797 ;
2798
2799 hash_ptr = hash_string (start,
2800 end_p1 - start,
2801 &orig_str_hash[0],
2802 (symint_t *) 0);
2803
2804 if (hash_ptr == (shash_t *) 0)
2805 {
2806 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2807 return;
2808 }
2809
2810 if (cur_oproc_begin == (SYMR *) 0)
2811 {
2812 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2813 return;
2814 }
2815
2816 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2817 st_Block, sc_Text,
2818 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2819 (symint_t) 0);
2820 }
2821
2822 \f
2823 /* Parse #.bend directives which have a label as the first argument
2824 which gives the location of the end of the block. */
2825
2826 STATIC void
2827 parse_bend (start)
2828 const char *start; /* start of directive */
2829 {
2830 const char *end_p1; /* end of label */
2831 int ch;
2832 shash_t *hash_ptr; /* hash pointer to lookup label */
2833
2834 if (cur_file_ptr == (efdr_t *) 0)
2835 {
2836 error ("#.begin directive without a preceding .file directive");
2837 return;
2838 }
2839
2840 if (cur_proc_ptr == (PDR *) 0)
2841 {
2842 error ("#.bend directive without a preceding .ent directive");
2843 return;
2844 }
2845
2846 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2847 ;
2848
2849 hash_ptr = hash_string (start,
2850 end_p1 - start,
2851 &orig_str_hash[0],
2852 (symint_t *) 0);
2853
2854 if (hash_ptr == (shash_t *) 0)
2855 {
2856 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2857 return;
2858 }
2859
2860 if (cur_oproc_begin == (SYMR *) 0)
2861 {
2862 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2863 return;
2864 }
2865
2866 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2867 st_End, sc_Text,
2868 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2869 (symint_t) 0);
2870 }
2871
2872 \f
2873 /* Parse #.def directives, which are contain standard COFF subdirectives
2874 to describe the debugging format. These subdirectives include:
2875
2876 .scl specify storage class
2877 .val specify a value
2878 .endef specify end of COFF directives
2879 .type specify the type
2880 .size specify the size of an array
2881 .dim specify an array dimension
2882 .tag specify a tag for a struct, union, or enum. */
2883
2884 STATIC void
2885 parse_def (name_start)
2886 const char *name_start; /* start of directive */
2887 {
2888 const char *dir_start; /* start of current directive*/
2889 const char *dir_end_p1; /* end+1 of current directive*/
2890 const char *arg_start; /* start of current argument */
2891 const char *arg_end_p1; /* end+1 of current argument */
2892 const char *name_end_p1; /* end+1 of label */
2893 const char *tag_start = (const char *) 0; /* start of tag name */
2894 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2895 sc_t storage_class = sc_Nil;
2896 st_t symbol_type = st_Nil;
2897 type_info_t t;
2898 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2899 int is_function = 0; /* != 0 if function */
2900 symint_t value = 0;
2901 symint_t indx = cur_file_ptr->void_type;
2902 int error_line = 0;
2903 symint_t arg_number;
2904 symint_t temp_array[ N_TQ ];
2905 int arg_was_number;
2906 int ch, i;
2907 Ptrdiff_t len;
2908
2909 static int inside_enumeration = 0; /* is this an enumeration? */
2910
2911
2912 /* Initialize the type information. */
2913 t = type_info_init;
2914
2915
2916 /* Search for the end of the name being defined. */
2917 /* Allow spaces and such in names for G++ templates, which produce stabs
2918 that look like:
2919
2920 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2921
2922 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2923 ;
2924
2925 if (ch == '\0')
2926 {
2927 error_line = __LINE__;
2928 saber_stop ();
2929 goto bomb_out;
2930 }
2931
2932 /* Parse the remaining subdirectives now. */
2933 dir_start = name_end_p1+1;
2934 for (;;)
2935 {
2936 while ((ch = *dir_start) == ' ' || ch == '\t')
2937 ++dir_start;
2938
2939 if (ch != '.')
2940 {
2941 error_line = __LINE__;
2942 saber_stop ();
2943 goto bomb_out;
2944 }
2945
2946 /* Are we done? */
2947 if (dir_start[1] == 'e'
2948 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2949 break;
2950
2951 /* Pick up the subdirective now */
2952 for (dir_end_p1 = dir_start+1;
2953 (ch = *dir_end_p1) != ' ' && ch != '\t';
2954 dir_end_p1++)
2955 {
2956 if (ch == '\0' || ISSPACE (ch))
2957 {
2958 error_line = __LINE__;
2959 saber_stop ();
2960 goto bomb_out;
2961 }
2962 }
2963
2964 /* Pick up the subdirective argument now. */
2965 arg_was_number = arg_number = 0;
2966 arg_end_p1 = (const char *) 0;
2967 arg_start = dir_end_p1+1;
2968 ch = *arg_start;
2969 while (ch == ' ' || ch == '\t')
2970 ch = *++arg_start;
2971
2972 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2973 {
2974 int ch2;
2975 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2976 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2977 arg_was_number++;
2978 }
2979
2980 else if (ch == '\0' || ISSPACE (ch))
2981 {
2982 error_line = __LINE__;
2983 saber_stop ();
2984 goto bomb_out;
2985 }
2986
2987 if (!arg_was_number)
2988 {
2989 /* Allow spaces and such in names for G++ templates. */
2990 for (arg_end_p1 = arg_start+1;
2991 (ch = *arg_end_p1) != ';' && ch != '\0';
2992 arg_end_p1++)
2993 ;
2994
2995 if (ch == '\0')
2996 {
2997 error_line = __LINE__;
2998 saber_stop ();
2999 goto bomb_out;
3000 }
3001 }
3002
3003 /* Classify the directives now. */
3004 len = dir_end_p1 - dir_start;
3005 switch (dir_start[1])
3006 {
3007 default:
3008 error_line = __LINE__;
3009 saber_stop ();
3010 goto bomb_out;
3011
3012 case 'd':
3013 if (len == sizeof (".dim")-1
3014 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3015 && arg_was_number)
3016 {
3017 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3018
3019 *t_ptr = arg_number;
3020 while (*arg_end_p1 == ',' && arg_was_number)
3021 {
3022 arg_start = arg_end_p1+1;
3023 ch = *arg_start;
3024 while (ch == ' ' || ch == '\t')
3025 ch = *++arg_start;
3026
3027 arg_was_number = 0;
3028 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3029 {
3030 int ch2;
3031 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3032 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3033 arg_was_number++;
3034
3035 if (t_ptr == &temp_array[0])
3036 {
3037 error_line = __LINE__;
3038 saber_stop ();
3039 goto bomb_out;
3040 }
3041
3042 *--t_ptr = arg_number;
3043 }
3044 }
3045
3046 /* Reverse order of dimensions. */
3047 while (t_ptr <= &temp_array[ N_TQ-1 ])
3048 {
3049 if (t.num_dims >= N_TQ-1)
3050 {
3051 error_line = __LINE__;
3052 saber_stop ();
3053 goto bomb_out;
3054 }
3055
3056 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3057 }
3058 break;
3059 }
3060 else
3061 {
3062 error_line = __LINE__;
3063 saber_stop ();
3064 goto bomb_out;
3065 }
3066
3067
3068 case 's':
3069 if (len == sizeof (".scl")-1
3070 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3071 && arg_was_number
3072 && arg_number < ((symint_t) C_MAX))
3073 {
3074 /* If the symbol is a static or external, we have
3075 already gotten the appropriate type and class, so
3076 make sure we don't override those values. This is
3077 needed because there are some type and classes that
3078 are not in COFF, such as short data, etc. */
3079 if (symbol_type == st_Nil)
3080 {
3081 symbol_type = map_coff_sym_type[arg_number];
3082 storage_class = map_coff_storage [arg_number];
3083 }
3084 break;
3085 }
3086
3087 else if (len == sizeof (".size")-1
3088 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3089 && arg_was_number)
3090 {
3091 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3092
3093 *t_ptr = arg_number;
3094 while (*arg_end_p1 == ',' && arg_was_number)
3095 {
3096 arg_start = arg_end_p1+1;
3097 ch = *arg_start;
3098 while (ch == ' ' || ch == '\t')
3099 ch = *++arg_start;
3100
3101 arg_was_number = 0;
3102 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3103 {
3104 int ch2;
3105 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3106 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3107 arg_was_number++;
3108
3109 if (t_ptr == &temp_array[0])
3110 {
3111 error_line = __LINE__;
3112 saber_stop ();
3113 goto bomb_out;
3114 }
3115
3116 *--t_ptr = arg_number;
3117 }
3118 }
3119
3120 /* Reverse order of sizes. */
3121 while (t_ptr <= &temp_array[ N_TQ-1 ])
3122 {
3123 if (t.num_sizes >= N_TQ-1)
3124 {
3125 error_line = __LINE__;
3126 saber_stop ();
3127 goto bomb_out;
3128 }
3129
3130 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3131 }
3132 break;
3133 }
3134
3135 else
3136 {
3137 error_line = __LINE__;
3138 saber_stop ();
3139 goto bomb_out;
3140 }
3141
3142
3143 case 't':
3144 if (len == sizeof (".type")-1
3145 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3146 && arg_was_number)
3147 {
3148 tq_t *tq_ptr = &t.type_qualifiers[0];
3149
3150 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3151 t.basic_type = map_coff_types [(int)t.orig_type];
3152 for (i = N_TQ-1; i >= 0; i--)
3153 {
3154 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3155 & N_TMASK);
3156
3157 if (dt != (int)DT_NON)
3158 *tq_ptr++ = map_coff_derived_type [dt];
3159 }
3160
3161 /* If this is a function, ignore it, so that we don't get
3162 two entries (one from the .ent, and one for the .def
3163 that precedes it). Save the type information so that
3164 the end block can properly add it after the begin block
3165 index. For MIPS knows what reason, we must strip off
3166 the function type at this point. */
3167 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3168 {
3169 is_function = 1;
3170 tq_ptr[-1] = tq_Nil;
3171 }
3172
3173 break;
3174 }
3175
3176 else if (len == sizeof (".tag")-1
3177 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3178 {
3179 tag_start = arg_start;
3180 tag_end_p1 = arg_end_p1;
3181 break;
3182 }
3183
3184 else
3185 {
3186 error_line = __LINE__;
3187 saber_stop ();
3188 goto bomb_out;
3189 }
3190
3191
3192 case 'v':
3193 if (len == sizeof (".val")-1
3194 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3195 {
3196 if (arg_was_number)
3197 value = arg_number;
3198
3199 /* If the value is not an integer value, it must be the
3200 name of a static or global item. Look up the name in
3201 the original symbol table to pick up the storage
3202 class, symbol type, etc. */
3203 else
3204 {
3205 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3206 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3207
3208 ext_hash_ptr = hash_string (arg_start,
3209 arg_end_p1 - arg_start,
3210 &ext_str_hash[0],
3211 (symint_t *) 0);
3212
3213 if (ext_hash_ptr != (shash_t *) 0
3214 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3215 eptr = ext_hash_ptr->esym_ptr;
3216
3217 orig_hash_ptr = hash_string (arg_start,
3218 arg_end_p1 - arg_start,
3219 &orig_str_hash[0],
3220 (symint_t *) 0);
3221
3222 if ((orig_hash_ptr == (shash_t *) 0
3223 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3224 && eptr == (EXTR *) 0)
3225 {
3226 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3227 arg_end_p1 - arg_start,
3228 arg_start);
3229 value = 0;
3230 }
3231 else
3232 {
3233 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3234 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3235 ? orig_hash_ptr->sym_ptr
3236 : &eptr->asym;
3237
3238 symbol_type = (st_t) ptr->st;
3239 storage_class = (sc_t) ptr->sc;
3240 value = ptr->value;
3241 }
3242 }
3243 break;
3244 }
3245 else
3246 {
3247 error_line = __LINE__;
3248 saber_stop ();
3249 goto bomb_out;
3250 }
3251 }
3252
3253 /* Set up to find next directive. */
3254 dir_start = arg_end_p1 + 1;
3255 }
3256
3257
3258 if (storage_class == sc_Bits)
3259 {
3260 t.bitfield = 1;
3261 t.extra_sizes = 1;
3262 }
3263 else
3264 t.extra_sizes = 0;
3265
3266 if (t.num_dims > 0)
3267 {
3268 int num_real_sizes = t.num_sizes - t.extra_sizes;
3269 int diff = t.num_dims - num_real_sizes;
3270 int i = t.num_dims - 1;
3271 int j;
3272
3273 if (num_real_sizes != 1 || diff < 0)
3274 {
3275 error_line = __LINE__;
3276 saber_stop ();
3277 goto bomb_out;
3278 }
3279
3280 /* If this is an array, make sure the same number of dimensions
3281 and sizes were passed, creating extra sizes for multiply
3282 dimensioned arrays if not passed. */
3283
3284 if (diff)
3285 {
3286 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3287 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3288
3289 t.num_sizes = i + 1;
3290 for ( i--; i >= 0; i-- )
3291 {
3292 if (t.dimensions[ i+1 ])
3293 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3294 else
3295 t.sizes[ i ] = t.sizes[ i+1 ];
3296 }
3297 }
3298 }
3299
3300 /* Except for enumeration members & begin/ending of scopes, put the
3301 type word in the aux. symbol table. */
3302
3303 if (symbol_type == st_Block || symbol_type == st_End)
3304 indx = 0;
3305
3306 else if (inside_enumeration)
3307 indx = cur_file_ptr->void_type;
3308
3309 else
3310 {
3311 if (t.basic_type == bt_Struct
3312 || t.basic_type == bt_Union
3313 || t.basic_type == bt_Enum)
3314 {
3315 if (tag_start == (char *) 0)
3316 {
3317 error ("No tag specified for %.*s",
3318 name_end_p1 - name_start,
3319 name_start);
3320 return;
3321 }
3322
3323 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3324 t.basic_type);
3325 }
3326
3327 if (is_function)
3328 {
3329 last_func_type_info = t;
3330 last_func_eptr = eptr;
3331 return;
3332 }
3333
3334 indx = add_aux_sym_tir (&t,
3335 hash_yes,
3336 &cur_file_ptr->thash_head[0]);
3337 }
3338
3339
3340 /* If this is an external or static symbol, update the appropriate
3341 external symbol. */
3342
3343 if (eptr != (EXTR *) 0
3344 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3345 {
3346 eptr->ifd = cur_file_ptr->file_index;
3347 eptr->asym.index = indx;
3348 }
3349
3350
3351 /* Do any last minute adjustments that are necessary. */
3352 switch (symbol_type)
3353 {
3354 default:
3355 break;
3356
3357
3358 /* For the beginning of structs, unions, and enumerations, the
3359 size info needs to be passed in the value field. */
3360
3361 case st_Block:
3362 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3363 {
3364 error_line = __LINE__;
3365 saber_stop ();
3366 goto bomb_out;
3367 }
3368
3369 else
3370 value = t.sizes[0];
3371
3372 inside_enumeration = (t.orig_type == T_ENUM);
3373 break;
3374
3375
3376 /* For the end of structs, unions, and enumerations, omit the
3377 name which is always ".eos". This needs to be done last, so
3378 that any error reporting above gives the correct name. */
3379
3380 case st_End:
3381 name_start = name_end_p1 = (const char *) 0;
3382 value = inside_enumeration = 0;
3383 break;
3384
3385
3386 /* Members of structures and unions that aren't bitfields, need
3387 to adjust the value from a byte offset to a bit offset.
3388 Members of enumerations do not have the value adjusted, and
3389 can be distinguished by indx == indexNil. For enumerations,
3390 update the maximum enumeration value. */
3391
3392 case st_Member:
3393 if (!t.bitfield && !inside_enumeration)
3394 value *= 8;
3395
3396 break;
3397 }
3398
3399
3400 /* Add the symbol, except for global symbols outside of functions,
3401 for which the external symbol table is fine enough. */
3402
3403 if (eptr == (EXTR *) 0
3404 || eptr->asym.st == (int)st_Nil
3405 || cur_proc_ptr != (PDR *) 0)
3406 {
3407 symint_t isym = add_local_symbol (name_start, name_end_p1,
3408 symbol_type, storage_class,
3409 value,
3410 indx);
3411
3412 /* deal with struct, union, and enum tags. */
3413 if (symbol_type == st_Block)
3414 {
3415 /* Create or update the tag information. */
3416 tag_t *tag_ptr = get_tag (name_start,
3417 name_end_p1,
3418 isym,
3419 t.basic_type);
3420
3421 /* If there are any forward references, fill in the appropriate
3422 file and symbol indexes. */
3423
3424 symint_t file_index = cur_file_ptr->file_index;
3425 forward_t *f_next = tag_ptr->forward_ref;
3426 forward_t *f_cur;
3427
3428 while (f_next != (forward_t *) 0)
3429 {
3430 f_cur = f_next;
3431 f_next = f_next->next;
3432
3433 f_cur->ifd_ptr->isym = file_index;
3434 f_cur->index_ptr->rndx.index = isym;
3435
3436 free_forward (f_cur);
3437 }
3438
3439 tag_ptr->forward_ref = (forward_t *) 0;
3440 }
3441 }
3442
3443 /* Normal return */
3444 return;
3445
3446 /* Error return, issue message. */
3447 bomb_out:
3448 if (error_line)
3449 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3450 else
3451 error ("compiler error, badly formed #.def");
3452
3453 return;
3454 }
3455
3456 \f
3457 /* Parse .end directives. */
3458
3459 STATIC void
3460 parse_end (start)
3461 const char *start; /* start of directive */
3462 {
3463 register const char *start_func, *end_func_p1;
3464 register int ch;
3465 register symint_t value;
3466 register FDR *orig_fdr;
3467
3468 if (cur_file_ptr == (efdr_t *) 0)
3469 {
3470 error (".end directive without a preceding .file directive");
3471 return;
3472 }
3473
3474 if (cur_proc_ptr == (PDR *) 0)
3475 {
3476 error (".end directive without a preceding .ent directive");
3477 return;
3478 }
3479
3480 /* Get the function name, skipping whitespace. */
3481 for (start_func = start; ISSPACE (*start_func); start_func++)
3482 ;
3483
3484 ch = *start_func;
3485 if (!IS_ASM_IDENT (ch))
3486 {
3487 error (".end directive has no name");
3488 return;
3489 }
3490
3491 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3492 ;
3493
3494
3495 /* Get the value field for creating the end from the original object
3496 file (which we find by locating the procedure start, and using the
3497 pointer to the end+1 block and backing up. The index points to a
3498 two word aux. symbol, whose first word is the index of the end
3499 symbol, and the second word is the type of the function return
3500 value. */
3501
3502 orig_fdr = cur_file_ptr->orig_fdr;
3503 value = 0;
3504 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3505 value = cur_oproc_end->value;
3506
3507 else
3508 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3509
3510 (void) add_local_symbol (start_func, end_func_p1,
3511 st_End, sc_Text,
3512 value,
3513 (symint_t) 0);
3514
3515 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3516 }
3517
3518 \f
3519 /* Parse .ent directives. */
3520
3521 STATIC void
3522 parse_ent (start)
3523 const char *start; /* start of directive */
3524 {
3525 register const char *start_func, *end_func_p1;
3526 register int ch;
3527
3528 if (cur_file_ptr == (efdr_t *) 0)
3529 {
3530 error (".ent directive without a preceding .file directive");
3531 return;
3532 }
3533
3534 if (cur_proc_ptr != (PDR *) 0)
3535 {
3536 error ("second .ent directive found before .end directive");
3537 return;
3538 }
3539
3540 for (start_func = start; ISSPACE (*start_func); start_func++)
3541 ;
3542
3543 ch = *start_func;
3544 if (!IS_ASM_IDENT (ch))
3545 {
3546 error (".ent directive has no name");
3547 return;
3548 }
3549
3550 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3551 ;
3552
3553 (void) add_procedure (start_func, end_func_p1);
3554 }
3555
3556 \f
3557 /* Parse .file directives. */
3558
3559 STATIC void
3560 parse_file (start)
3561 const char *start; /* start of directive */
3562 {
3563 char *p;
3564 register char *start_name, *end_name_p1;
3565
3566 (void) strtol (start, &p, 0);
3567 if (start == p
3568 || (start_name = local_index (p, '"')) == (char *) 0
3569 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3570 {
3571 error ("Invalid .file directive");
3572 return;
3573 }
3574
3575 if (cur_proc_ptr != (PDR *) 0)
3576 {
3577 error ("No way to handle .file within .ent/.end section");
3578 return;
3579 }
3580
3581 add_file (start_name, end_name_p1);
3582 }
3583
3584 \f
3585 /* Make sure the @stabs symbol is emitted. */
3586
3587 static void
3588 mark_stabs (start)
3589 const char *start; /* Start of directive (ignored) */
3590 {
3591 if (!stabs_seen)
3592 {
3593 /* Add a dummy @stabs symbol. */
3594 stabs_seen = 1;
3595 (void) add_local_symbol (stabs_symbol,
3596 stabs_symbol + sizeof (stabs_symbol),
3597 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3598
3599 }
3600 }
3601
3602 \f
3603 /* Parse .stabs directives.
3604
3605 .stabs directives have five fields:
3606 "string" a string, encoding the type information.
3607 code a numeric code, defined in <stab.h>
3608 0 a zero
3609 0 a zero or line number
3610 value a numeric value or an address.
3611
3612 If the value is relocatable, we transform this into:
3613 iss points as an index into string space
3614 value value from lookup of the name
3615 st st from lookup of the name
3616 sc sc from lookup of the name
3617 index code|CODE_MASK
3618
3619 If the value is not relocatable, we transform this into:
3620 iss points as an index into string space
3621 value value
3622 st st_Nil
3623 sc sc_Nil
3624 index code|CODE_MASK
3625
3626 .stabn directives have four fields (string is null):
3627 code a numeric code, defined in <stab.h>
3628 0 a zero
3629 0 a zero or a line number
3630 value a numeric value or an address. */
3631
3632 STATIC void
3633 parse_stabs_common (string_start, string_end, rest)
3634 const char *string_start; /* start of string or NULL */
3635 const char *string_end; /* end+1 of string or NULL */
3636 const char *rest; /* rest of the directive. */
3637 {
3638 efdr_t *save_file_ptr = cur_file_ptr;
3639 symint_t code;
3640 symint_t value;
3641 char *p;
3642 st_t st;
3643 sc_t sc;
3644 int ch;
3645
3646 if (stabs_seen == 0)
3647 mark_stabs ("");
3648
3649 /* Read code from stabs. */
3650 if (!ISDIGIT (*rest))
3651 {
3652 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3653 return;
3654 }
3655
3656 code = strtol (rest, &p, 0);
3657
3658 /* Line number stabs are handled differently, since they have two values,
3659 the line number and the address of the label. We use the index field
3660 (aka code) to hold the line number, and the value field to hold the
3661 address. The symbol type is st_Label, which should be different from
3662 the other stabs, so that gdb can recognize it. */
3663
3664 if (code == (int)N_SLINE)
3665 {
3666 SYMR *sym_ptr, dummy_symr;
3667 shash_t *shash_ptr;
3668
3669 /* Skip ,0, */
3670 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3671 {
3672 error ("Invalid line number .stabs/.stabn directive");
3673 return;
3674 }
3675
3676 code = strtol (p+3, &p, 0);
3677 ch = *++p;
3678 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3679 {
3680 error ("Invalid line number .stabs/.stabn directive");
3681 return;
3682 }
3683
3684 dummy_symr.index = code;
3685 if (dummy_symr.index != code)
3686 {
3687 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3688 code);
3689
3690 return;
3691 }
3692
3693 shash_ptr = hash_string (p,
3694 strlen (p) - 1,
3695 &orig_str_hash[0],
3696 (symint_t *) 0);
3697
3698 if (shash_ptr == (shash_t *) 0
3699 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3700 {
3701 error ("Invalid .stabs/.stabn directive, value not found");
3702 return;
3703 }
3704
3705 if ((st_t) sym_ptr->st != st_Label)
3706 {
3707 error ("Invalid line number .stabs/.stabn directive");
3708 return;
3709 }
3710
3711 st = st_Label;
3712 sc = (sc_t) sym_ptr->sc;
3713 value = sym_ptr->value;
3714 }
3715 else
3716 {
3717 /* Skip ,<num>,<num>, */
3718 if (*p++ != ',')
3719 goto failure;
3720 for (; ISDIGIT (*p); p++)
3721 ;
3722 if (*p++ != ',')
3723 goto failure;
3724 for (; ISDIGIT (*p); p++)
3725 ;
3726 if (*p++ != ',')
3727 goto failure;
3728 ch = *p;
3729 if (!IS_ASM_IDENT (ch) && ch != '-')
3730 {
3731 failure:
3732 error ("Invalid .stabs/.stabn directive, bad character");
3733 return;
3734 }
3735
3736 if (ISDIGIT (ch) || ch == '-')
3737 {
3738 st = st_Nil;
3739 sc = sc_Nil;
3740 value = strtol (p, &p, 0);
3741 if (*p != '\n')
3742 {
3743 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3744 return;
3745 }
3746 }
3747 else if (!IS_ASM_IDENT (ch))
3748 {
3749 error ("Invalid .stabs/.stabn directive, bad character");
3750 return;
3751 }
3752 else
3753 {
3754 SYMR *sym_ptr;
3755 shash_t *shash_ptr;
3756 const char *start, *end_p1;
3757
3758 start = p;
3759 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3760 {
3761 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3762 end_p1 = start + strlen(start) - 1;
3763 }
3764
3765 shash_ptr = hash_string (start,
3766 end_p1 - start,
3767 &orig_str_hash[0],
3768 (symint_t *) 0);
3769
3770 if (shash_ptr == (shash_t *) 0
3771 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3772 {
3773 shash_ptr = hash_string (start,
3774 end_p1 - start,
3775 &ext_str_hash[0],
3776 (symint_t *) 0);
3777
3778 if (shash_ptr == (shash_t *) 0
3779 || shash_ptr->esym_ptr == (EXTR *) 0)
3780 {
3781 error ("Invalid .stabs/.stabn directive, value not found");
3782 return;
3783 }
3784 else
3785 sym_ptr = &(shash_ptr->esym_ptr->asym);
3786 }
3787
3788 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3789 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3790 {
3791 sc = scNil;
3792 st = stNil;
3793 }
3794 else
3795 {
3796 sc = (sc_t) sym_ptr->sc;
3797 st = (st_t) sym_ptr->st;
3798 }
3799 value = sym_ptr->value;
3800
3801 ch = *end_p1++;
3802 if (ch != '\n')
3803 {
3804 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3805 || ((ch != '+') && (ch != '-')))
3806 {
3807 error ("Invalid .stabs/.stabn directive, badly formed value");
3808 return;
3809 }
3810 if (ch == '+')
3811 value += strtol (end_p1, &p, 0);
3812 else if (ch == '-')
3813 value -= strtol (end_p1, &p, 0);
3814
3815 if (*p != '\n')
3816 {
3817 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3818 return;
3819 }
3820 }
3821 }
3822 code = MIPS_MARK_STAB(code);
3823 }
3824
3825 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3826 /* Restore normal file type. */
3827 cur_file_ptr = save_file_ptr;
3828 }
3829
3830
3831 STATIC void
3832 parse_stabs (start)
3833 const char *start; /* start of directive */
3834 {
3835 const char *end = local_index (start+1, '"');
3836
3837 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3838 {
3839 error ("Invalid .stabs directive, no string");
3840 return;
3841 }
3842
3843 parse_stabs_common (start+1, end, end+2);
3844 }
3845
3846
3847 STATIC void
3848 parse_stabn (start)
3849 const char *start; /* start of directive */
3850 {
3851 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3852 }
3853
3854 \f
3855 /* Parse the input file, and write the lines to the output file
3856 if needed. */
3857
3858 STATIC void
3859 parse_input __proto((void))
3860 {
3861 register char *p;
3862 register int i;
3863 register thead_t *ptag_head;
3864 register tag_t *ptag;
3865 register tag_t *ptag_next;
3866
3867 if (debug)
3868 fprintf (stderr, "\tinput\n");
3869
3870 /* Add a dummy scope block around the entire compilation unit for
3871 structures defined outside of blocks. */
3872 ptag_head = allocate_thead ();
3873 ptag_head->first_tag = 0;
3874 ptag_head->prev = cur_tag_head;
3875 cur_tag_head = ptag_head;
3876
3877 while ((p = read_line ()) != (char *) 0)
3878 {
3879 /* Skip leading blanks */
3880 while (ISSPACE (*p))
3881 p++;
3882
3883 /* See if it's a directive we handle. If so, dispatch handler. */
3884 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3885 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3886 && ISSPACE (p[pseudo_ops[i].len]))
3887 {
3888 p += pseudo_ops[i].len; /* skip to first argument */
3889 while (ISSPACE (*p))
3890 p++;
3891
3892 (*pseudo_ops[i].func)( p );
3893 break;
3894 }
3895 }
3896
3897 /* Process any tags at global level. */
3898 ptag_head = cur_tag_head;
3899 cur_tag_head = ptag_head->prev;
3900
3901 for (ptag = ptag_head->first_tag;
3902 ptag != (tag_t *) 0;
3903 ptag = ptag_next)
3904 {
3905 if (ptag->forward_ref != (forward_t *) 0)
3906 add_unknown_tag (ptag);
3907
3908 ptag_next = ptag->same_block;
3909 ptag->hash_ptr->tag_ptr = ptag->same_name;
3910 free_tag (ptag);
3911 }
3912
3913 free_thead (ptag_head);
3914
3915 }
3916
3917 \f
3918 /* Update the global headers with the final offsets in preparation
3919 to write out the .T file. */
3920
3921 STATIC void
3922 update_headers __proto((void))
3923 {
3924 register symint_t i;
3925 register efdr_t *file_ptr;
3926
3927 /* Set up the symbolic header. */
3928 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3929 symbolic_header.magic = orig_sym_hdr.magic;
3930 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3931
3932 /* Set up global counts. */
3933 symbolic_header.issExtMax = ext_strings.num_allocated;
3934 symbolic_header.idnMax = dense_num.num_allocated;
3935 symbolic_header.ifdMax = file_desc.num_allocated;
3936 symbolic_header.iextMax = ext_symbols.num_allocated;
3937 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3938 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3939 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3940 symbolic_header.crfd = orig_sym_hdr.crfd;
3941
3942
3943 /* Loop through each file, figuring out how many local syms,
3944 line numbers, etc. there are. Also, put out end symbol
3945 for the filename. */
3946
3947 for (file_ptr = first_file;
3948 file_ptr != (efdr_t *) 0;
3949 file_ptr = file_ptr->next_file)
3950 {
3951 register SYMR *sym_start;
3952 register SYMR *sym;
3953 register SYMR *sym_end_p1;
3954 register FDR *fd_ptr = file_ptr->orig_fdr;
3955
3956 cur_file_ptr = file_ptr;
3957
3958 /* Copy st_Static symbols from the original local symbol table if
3959 they did not get added to the new local symbol table.
3960 This happens with stabs-in-ecoff or if the source file is
3961 compiled without debugging. */
3962 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3963 sym_end_p1 = sym_start + fd_ptr->csym;
3964 for (sym = sym_start; sym < sym_end_p1; sym++)
3965 {
3966 if ((st_t)sym->st == st_Static)
3967 {
3968 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3969 register Size_t len = strlen (str);
3970 register shash_t *hash_ptr;
3971
3972 /* Ignore internal labels. */
3973 if (str[0] == '$' && str[1] == 'L')
3974 continue;
3975 hash_ptr = hash_string (str,
3976 (Ptrdiff_t)len,
3977 &file_ptr->shash_head[0],
3978 (symint_t *) 0);
3979 if (hash_ptr == (shash_t *) 0)
3980 {
3981 (void) add_local_symbol (str, str + len,
3982 (st_t)sym->st, (sc_t)sym->sc,
3983 (symint_t)sym->value,
3984 (symint_t)indexNil);
3985 }
3986 }
3987 }
3988 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3989 st_End, sc_Text,
3990 (symint_t) 0,
3991 (symint_t) 0);
3992
3993 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3994 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3995 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3996
3997 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3998 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3999 symbolic_header.isymMax += file_ptr->fdr.csym;
4000
4001 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4002 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4003 symbolic_header.iauxMax += file_ptr->fdr.caux;
4004
4005 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4006 file_ptr->fdr.issBase = symbolic_header.issMax;
4007 symbolic_header.issMax += file_ptr->fdr.cbSs;
4008 }
4009
4010 #ifndef ALIGN_SYMTABLE_OFFSET
4011 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4012 #endif
4013
4014 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4015 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4016 if (i > 0)
4017 {
4018 symbolic_header.cbLineOffset = file_offset;
4019 file_offset += i;
4020 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4021 }
4022
4023 i = symbolic_header.ioptMax; /* optimization symbols */
4024 if (((long) i) > 0)
4025 {
4026 symbolic_header.cbOptOffset = file_offset;
4027 file_offset += i * sizeof (OPTR);
4028 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4029 }
4030
4031 i = symbolic_header.idnMax; /* dense numbers */
4032 if (i > 0)
4033 {
4034 symbolic_header.cbDnOffset = file_offset;
4035 file_offset += i * sizeof (DNR);
4036 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4037 }
4038
4039 i = symbolic_header.ipdMax; /* procedure tables */
4040 if (i > 0)
4041 {
4042 symbolic_header.cbPdOffset = file_offset;
4043 file_offset += i * sizeof (PDR);
4044 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4045 }
4046
4047 i = symbolic_header.isymMax; /* local symbols */
4048 if (i > 0)
4049 {
4050 symbolic_header.cbSymOffset = file_offset;
4051 file_offset += i * sizeof (SYMR);
4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4053 }
4054
4055 i = symbolic_header.iauxMax; /* aux syms. */
4056 if (i > 0)
4057 {
4058 symbolic_header.cbAuxOffset = file_offset;
4059 file_offset += i * sizeof (TIR);
4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4061 }
4062
4063 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4064 if (i > 0)
4065 {
4066 symbolic_header.cbSsOffset = file_offset;
4067 file_offset += i;
4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4069 }
4070
4071 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4072 if (i > 0)
4073 {
4074 symbolic_header.cbSsExtOffset = file_offset;
4075 file_offset += i;
4076 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4077 }
4078
4079 i = symbolic_header.ifdMax; /* file tables */
4080 if (i > 0)
4081 {
4082 symbolic_header.cbFdOffset = file_offset;
4083 file_offset += i * sizeof (FDR);
4084 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4085 }
4086
4087 i = symbolic_header.crfd; /* relative file descriptors */
4088 if (i > 0)
4089 {
4090 symbolic_header.cbRfdOffset = file_offset;
4091 file_offset += i * sizeof (symint_t);
4092 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4093 }
4094
4095 i = symbolic_header.iextMax; /* external symbols */
4096 if (i > 0)
4097 {
4098 symbolic_header.cbExtOffset = file_offset;
4099 file_offset += i * sizeof (EXTR);
4100 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4101 }
4102 }
4103
4104 \f
4105 /* Write out a varray at a given location. */
4106
4107 STATIC void
4108 write_varray (vp, offset, str)
4109 varray_t *vp; /* virtual array */
4110 off_t offset; /* offset to write varray to */
4111 const char *str; /* string to print out when tracing */
4112 {
4113 int num_write, sys_write;
4114 vlinks_t *ptr;
4115
4116 if (vp->num_allocated == 0)
4117 return;
4118
4119 if (debug)
4120 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4121 vp, offset, vp->num_allocated * vp->object_size, str);
4122
4123 if (file_offset != offset
4124 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4125 pfatal_with_name (object_name);
4126
4127 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4128 {
4129 num_write = (ptr->next == (vlinks_t *) 0)
4130 ? vp->objects_last_page * vp->object_size
4131 : vp->objects_per_page * vp->object_size;
4132
4133 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4134 if (sys_write <= 0)
4135 pfatal_with_name (object_name);
4136
4137 else if (sys_write != num_write)
4138 fatal ("Wrote %d bytes to %s, system returned %d",
4139 num_write,
4140 object_name,
4141 sys_write);
4142
4143 file_offset += num_write;
4144 }
4145 }
4146
4147 \f
4148 /* Write out the symbol table in the object file. */
4149
4150 STATIC void
4151 write_object __proto((void))
4152 {
4153 int sys_write;
4154 efdr_t *file_ptr;
4155 off_t offset;
4156
4157 if (debug)
4158 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4159 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4160 "symbolic header");
4161
4162 sys_write = fwrite ((PTR_T) &symbolic_header,
4163 1,
4164 sizeof (symbolic_header),
4165 object_stream);
4166
4167 if (sys_write < 0)
4168 pfatal_with_name (object_name);
4169
4170 else if (sys_write != sizeof (symbolic_header))
4171 fatal ("Wrote %d bytes to %s, system returned %d",
4172 sizeof (symbolic_header),
4173 object_name,
4174 sys_write);
4175
4176
4177 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4178
4179 if (symbolic_header.cbLine > 0) /* line numbers */
4180 {
4181 long sys_write;
4182
4183 if (file_offset != symbolic_header.cbLineOffset
4184 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4185 pfatal_with_name (object_name);
4186
4187 if (debug)
4188 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4189 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4190 symbolic_header.cbLine, "Line numbers");
4191
4192 sys_write = fwrite ((PTR_T) orig_linenum,
4193 1,
4194 symbolic_header.cbLine,
4195 object_stream);
4196
4197 if (sys_write <= 0)
4198 pfatal_with_name (object_name);
4199
4200 else if (sys_write != symbolic_header.cbLine)
4201 fatal ("Wrote %d bytes to %s, system returned %d",
4202 symbolic_header.cbLine,
4203 object_name,
4204 sys_write);
4205
4206 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4207 }
4208
4209 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4210 {
4211 long sys_write;
4212 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4213
4214 if (file_offset != symbolic_header.cbOptOffset
4215 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4216 pfatal_with_name (object_name);
4217
4218 if (debug)
4219 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4220 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4221 num_write, "Optimizer symbols");
4222
4223 sys_write = fwrite ((PTR_T) orig_opt_syms,
4224 1,
4225 num_write,
4226 object_stream);
4227
4228 if (sys_write <= 0)
4229 pfatal_with_name (object_name);
4230
4231 else if (sys_write != num_write)
4232 fatal ("Wrote %d bytes to %s, system returned %d",
4233 num_write,
4234 object_name,
4235 sys_write);
4236
4237 file_offset = symbolic_header.cbOptOffset + num_write;
4238 }
4239
4240 if (symbolic_header.idnMax > 0) /* dense numbers */
4241 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4242
4243 if (symbolic_header.ipdMax > 0) /* procedure tables */
4244 {
4245 offset = symbolic_header.cbPdOffset;
4246 for (file_ptr = first_file;
4247 file_ptr != (efdr_t *) 0;
4248 file_ptr = file_ptr->next_file)
4249 {
4250 write_varray (&file_ptr->procs, offset, "Procedure tables");
4251 offset = file_offset;
4252 }
4253 }
4254
4255 if (symbolic_header.isymMax > 0) /* local symbols */
4256 {
4257 offset = symbolic_header.cbSymOffset;
4258 for (file_ptr = first_file;
4259 file_ptr != (efdr_t *) 0;
4260 file_ptr = file_ptr->next_file)
4261 {
4262 write_varray (&file_ptr->symbols, offset, "Local symbols");
4263 offset = file_offset;
4264 }
4265 }
4266
4267 if (symbolic_header.iauxMax > 0) /* aux symbols */
4268 {
4269 offset = symbolic_header.cbAuxOffset;
4270 for (file_ptr = first_file;
4271 file_ptr != (efdr_t *) 0;
4272 file_ptr = file_ptr->next_file)
4273 {
4274 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4275 offset = file_offset;
4276 }
4277 }
4278
4279 if (symbolic_header.issMax > 0) /* local strings */
4280 {
4281 offset = symbolic_header.cbSsOffset;
4282 for (file_ptr = first_file;
4283 file_ptr != (efdr_t *) 0;
4284 file_ptr = file_ptr->next_file)
4285 {
4286 write_varray (&file_ptr->strings, offset, "Local strings");
4287 offset = file_offset;
4288 }
4289 }
4290
4291 if (symbolic_header.issExtMax > 0) /* external strings */
4292 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4293
4294 if (symbolic_header.ifdMax > 0) /* file tables */
4295 {
4296 offset = symbolic_header.cbFdOffset;
4297 if (file_offset != offset
4298 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4299 pfatal_with_name (object_name);
4300
4301 file_offset = offset;
4302 for (file_ptr = first_file;
4303 file_ptr != (efdr_t *) 0;
4304 file_ptr = file_ptr->next_file)
4305 {
4306 if (debug)
4307 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4308 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4309
4310 sys_write = fwrite (&file_ptr->fdr,
4311 1,
4312 sizeof (FDR),
4313 object_stream);
4314
4315 if (sys_write < 0)
4316 pfatal_with_name (object_name);
4317
4318 else if (sys_write != sizeof (FDR))
4319 fatal ("Wrote %d bytes to %s, system returned %d",
4320 sizeof (FDR),
4321 object_name,
4322 sys_write);
4323
4324 file_offset = offset += sizeof (FDR);
4325 }
4326 }
4327
4328 if (symbolic_header.crfd > 0) /* relative file descriptors */
4329 {
4330 long sys_write;
4331 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4332
4333 if (file_offset != symbolic_header.cbRfdOffset
4334 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4335 pfatal_with_name (object_name);
4336
4337 if (debug)
4338 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4339 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4340 num_write, "Relative file descriptors");
4341
4342 sys_write = fwrite (orig_rfds,
4343 1,
4344 num_write,
4345 object_stream);
4346
4347 if (sys_write <= 0)
4348 pfatal_with_name (object_name);
4349
4350 else if (sys_write != num_write)
4351 fatal ("Wrote %d bytes to %s, system returned %d",
4352 num_write,
4353 object_name,
4354 sys_write);
4355
4356 file_offset = symbolic_header.cbRfdOffset + num_write;
4357 }
4358
4359 if (symbolic_header.issExtMax > 0) /* external symbols */
4360 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4361
4362 if (fclose (object_stream) != 0)
4363 pfatal_with_name (object_name);
4364 }
4365
4366 \f
4367 /* Read some bytes at a specified location, and return a pointer. */
4368
4369 STATIC page_t *
4370 read_seek (size, offset, str)
4371 Size_t size; /* # bytes to read */
4372 off_t offset; /* offset to read at */
4373 const char *str; /* name for tracing */
4374 {
4375 page_t *ptr;
4376 long sys_read = 0;
4377
4378 if (size == 0) /* nothing to read */
4379 return (page_t *) 0;
4380
4381 if (debug)
4382 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4383 size, offset, file_offset, str);
4384
4385 #ifndef MALLOC_CHECK
4386 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4387 #else
4388 ptr = (page_t *) xcalloc (1, size);
4389 #endif
4390
4391 /* If we need to seek, and the distance is nearby, just do some reads,
4392 to speed things up. */
4393 if (file_offset != offset)
4394 {
4395 symint_t difference = offset - file_offset;
4396
4397 if (difference < 8)
4398 {
4399 char small_buffer[8];
4400
4401 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4402 if (sys_read <= 0)
4403 pfatal_with_name (obj_in_name);
4404
4405 if (sys_read != difference)
4406 fatal ("Wanted to read %d bytes from %s, system returned %d",
4407 size,
4408 obj_in_name,
4409 sys_read);
4410 }
4411 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4412 pfatal_with_name (obj_in_name);
4413 }
4414
4415 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4416 if (sys_read <= 0)
4417 pfatal_with_name (obj_in_name);
4418
4419 if (sys_read != size)
4420 fatal ("Wanted to read %d bytes from %s, system returned %d",
4421 size,
4422 obj_in_name,
4423 sys_read);
4424
4425 file_offset = offset + size;
4426
4427 if (file_offset > max_file_offset)
4428 max_file_offset = file_offset;
4429
4430 return ptr;
4431 }
4432
4433 \f
4434 /* Read the existing object file (and copy to the output object file
4435 if it is different from the input object file), and remove the old
4436 symbol table. */
4437
4438 STATIC void
4439 copy_object __proto((void))
4440 {
4441 char buffer[ PAGE_SIZE ];
4442 register int sys_read;
4443 register int remaining;
4444 register int num_write;
4445 register int sys_write;
4446 register int fd, es;
4447 register int delete_ifd = 0;
4448 register int *remap_file_number;
4449 struct stat stat_buf;
4450
4451 if (debug)
4452 fprintf (stderr, "\tcopy\n");
4453
4454 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4455 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4456 pfatal_with_name (obj_in_name);
4457
4458 sys_read = fread ((PTR_T) &orig_file_header,
4459 1,
4460 sizeof (struct filehdr),
4461 obj_in_stream);
4462
4463 if (sys_read < 0)
4464 pfatal_with_name (obj_in_name);
4465
4466 else if (sys_read == 0 && feof (obj_in_stream))
4467 return; /* create a .T file sans file header */
4468
4469 else if (sys_read < sizeof (struct filehdr))
4470 fatal ("Wanted to read %d bytes from %s, system returned %d",
4471 sizeof (struct filehdr),
4472 obj_in_name,
4473 sys_read);
4474
4475
4476 if (orig_file_header.f_nsyms != sizeof (HDRR))
4477 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4478 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4479
4480
4481 /* Read in the current symbolic header. */
4482 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4483 pfatal_with_name (input_name);
4484
4485 sys_read = fread ((PTR_T) &orig_sym_hdr,
4486 1,
4487 sizeof (orig_sym_hdr),
4488 obj_in_stream);
4489
4490 if (sys_read < 0)
4491 pfatal_with_name (object_name);
4492
4493 else if (sys_read < sizeof (struct filehdr))
4494 fatal ("Wanted to read %d bytes from %s, system returned %d",
4495 sizeof (struct filehdr),
4496 obj_in_name,
4497 sys_read);
4498
4499
4500 /* Read in each of the sections if they exist in the object file.
4501 We read things in in the order the mips assembler creates the
4502 sections, so in theory no extra seeks are done.
4503
4504 For simplicity sake, round each read up to a page boundary,
4505 we may want to revisit this later.... */
4506
4507 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4508
4509 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4510 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4511 orig_sym_hdr.cbLineOffset,
4512 "Line numbers");
4513
4514 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4515 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4516 orig_sym_hdr.cbPdOffset,
4517 "Procedure tables");
4518
4519 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4520 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4521 orig_sym_hdr.cbSymOffset,
4522 "Local symbols");
4523
4524 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4525 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4526 orig_sym_hdr.cbAuxOffset,
4527 "Aux. symbols");
4528
4529 if (orig_sym_hdr.issMax > 0) /* local strings */
4530 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4531 orig_sym_hdr.cbSsOffset,
4532 "Local strings");
4533
4534 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4535 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4536 orig_sym_hdr.cbSsExtOffset,
4537 "External strings");
4538
4539 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4540 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4541 orig_sym_hdr.cbFdOffset,
4542 "File tables");
4543
4544 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4545 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4546 orig_sym_hdr.cbRfdOffset,
4547 "Relative file descriptors");
4548
4549 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4550 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4551 orig_sym_hdr.cbExtOffset,
4552 "External symbols");
4553
4554 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4555 {
4556 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4557 orig_sym_hdr.cbDnOffset,
4558 "Dense numbers");
4559
4560 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4561 }
4562
4563 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4564 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4565 orig_sym_hdr.cbOptOffset,
4566 "Optimizer symbols");
4567
4568
4569
4570 /* Abort if the symbol table is not last. */
4571 if (max_file_offset != stat_buf.st_size)
4572 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4573 max_file_offset,
4574 stat_buf.st_size);
4575
4576
4577 /* If the first original file descriptor is a dummy which the assembler
4578 put out, but there are no symbols in it, skip it now. */
4579 if (orig_sym_hdr.ifdMax > 1
4580 && orig_files->csym == 2
4581 && orig_files->caux == 0)
4582 {
4583 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4584 char *suffix = local_rindex (filename, '.');
4585
4586 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4587 delete_ifd = 1;
4588 }
4589
4590
4591 /* Create array to map original file numbers to the new file numbers
4592 (in case there are duplicate filenames, we collapse them into one
4593 file section, the MIPS assembler may or may not collapse them). */
4594
4595 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4596
4597 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4598 {
4599 register FDR *fd_ptr = ORIG_FILES (fd);
4600 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4601
4602 /* file support itself. */
4603 add_file (filename, filename + strlen (filename));
4604 remap_file_number[fd] = cur_file_ptr->file_index;
4605 }
4606
4607 if (delete_ifd > 0) /* just in case */
4608 remap_file_number[0] = remap_file_number[1];
4609
4610
4611 /* Loop, adding each of the external symbols. These must be in
4612 order or otherwise we would have to change the relocation
4613 entries. We don't just call add_bytes, because we need to have
4614 the names put into the external hash table. We set the type to
4615 'void' for now, and parse_def will fill in the correct type if it
4616 is in the symbol table. We must add the external symbols before
4617 the locals, since the locals do lookups against the externals. */
4618
4619 if (debug)
4620 fprintf (stderr, "\tehash\n");
4621
4622 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4623 {
4624 register EXTR *eptr = orig_ext_syms + es;
4625 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4626 register unsigned ifd = eptr->ifd;
4627
4628 (void) add_ext_symbol (ename,
4629 ename + strlen (ename),
4630 (st_t) eptr->asym.st,
4631 (sc_t) eptr->asym.sc,
4632 eptr->asym.value,
4633 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4634 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4635 }
4636
4637
4638 /* For each of the files in the object file, copy the symbols, and such
4639 into the varrays for the new object file. */
4640
4641 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4642 {
4643 register FDR *fd_ptr = ORIG_FILES (fd);
4644 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4645 register SYMR *sym_start;
4646 register SYMR *sym;
4647 register SYMR *sym_end_p1;
4648 register PDR *proc_start;
4649 register PDR *proc;
4650 register PDR *proc_end_p1;
4651
4652 /* file support itself. */
4653 add_file (filename, filename + strlen (filename));
4654 cur_file_ptr->orig_fdr = fd_ptr;
4655
4656 /* Copy stuff that's just passed through (such as line #'s) */
4657 cur_file_ptr->fdr.adr = fd_ptr->adr;
4658 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4659 cur_file_ptr->fdr.cline = fd_ptr->cline;
4660 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4661 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4662 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4663 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4664 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4665 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4666 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4667
4668 if (debug)
4669 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4670
4671 /* For each of the static and global symbols defined, add them
4672 to the hash table of original symbols, so we can look up
4673 their values. */
4674
4675 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4676 sym_end_p1 = sym_start + fd_ptr->csym;
4677 for (sym = sym_start; sym < sym_end_p1; sym++)
4678 {
4679 switch ((st_t) sym->st)
4680 {
4681 default:
4682 break;
4683
4684 case st_Global:
4685 case st_Static:
4686 case st_Label:
4687 case st_Proc:
4688 case st_StaticProc:
4689 {
4690 auto symint_t hash_index;
4691 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4692 register Size_t len = strlen (str);
4693 register shash_t *shash_ptr = hash_string (str,
4694 (Ptrdiff_t)len,
4695 &orig_str_hash[0],
4696 &hash_index);
4697
4698 if (shash_ptr != (shash_t *) 0)
4699 error ("internal error, %s is already in original symbol table", str);
4700
4701 else
4702 {
4703 shash_ptr = allocate_shash ();
4704 shash_ptr->next = orig_str_hash[hash_index];
4705 orig_str_hash[hash_index] = shash_ptr;
4706
4707 shash_ptr->len = len;
4708 shash_ptr->indx = indexNil;
4709 shash_ptr->string = str;
4710 shash_ptr->sym_ptr = sym;
4711 }
4712 }
4713 break;
4714
4715 case st_End:
4716 if ((sc_t) sym->sc == sc_Text)
4717 {
4718 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4719
4720 if (*str != '\0')
4721 {
4722 register Size_t len = strlen (str);
4723 register shash_t *shash_ptr = hash_string (str,
4724 (Ptrdiff_t)len,
4725 &orig_str_hash[0],
4726 (symint_t *) 0);
4727
4728 if (shash_ptr != (shash_t *) 0)
4729 shash_ptr->end_ptr = sym;
4730 }
4731 }
4732 break;
4733
4734 }
4735 }
4736
4737 if (debug)
4738 {
4739 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4740 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4741 }
4742
4743 /* Go through each of the procedures in this file, and add the
4744 procedure pointer to the hash entry for the given name. */
4745
4746 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4747 proc_end_p1 = proc_start + fd_ptr->cpd;
4748 for (proc = proc_start; proc < proc_end_p1; proc++)
4749 {
4750 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4751 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4752 register Size_t len = strlen (str);
4753 register shash_t *shash_ptr = hash_string (str,
4754 (Ptrdiff_t)len,
4755 &orig_str_hash[0],
4756 (symint_t *) 0);
4757
4758 if (shash_ptr == (shash_t *) 0)
4759 error ("internal error, function %s is not in original symbol table", str);
4760
4761 else
4762 shash_ptr->proc_ptr = proc;
4763 }
4764
4765 if (debug)
4766 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4767
4768 }
4769 cur_file_ptr = first_file;
4770
4771
4772 /* Copy all of the object file up to the symbol table. Originally
4773 we were going to use ftruncate, but that doesn't seem to work
4774 on Ultrix 3.1.... */
4775
4776 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4777 pfatal_with_name (obj_in_name);
4778
4779 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4780 pfatal_with_name (object_name);
4781
4782 for (remaining = orig_file_header.f_symptr;
4783 remaining > 0;
4784 remaining -= num_write)
4785 {
4786 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4787 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4788 if (sys_read <= 0)
4789 pfatal_with_name (obj_in_name);
4790
4791 else if (sys_read != num_write)
4792 fatal ("Wanted to read %d bytes from %s, system returned %d",
4793 num_write,
4794 obj_in_name,
4795 sys_read);
4796
4797 sys_write = fwrite (buffer, 1, num_write, object_stream);
4798 if (sys_write <= 0)
4799 pfatal_with_name (object_name);
4800
4801 else if (sys_write != num_write)
4802 fatal ("Wrote %d bytes to %s, system returned %d",
4803 num_write,
4804 object_name,
4805 sys_write);
4806 }
4807 }
4808
4809 \f
4810 /* Ye olde main program. */
4811
4812 int
4813 main (argc, argv)
4814 int argc;
4815 char *argv[];
4816 {
4817 int iflag = 0;
4818 char *p = local_rindex (argv[0], '/');
4819 char *num_end;
4820 int option;
4821 int i;
4822
4823 progname = (p != 0) ? p+1 : argv[0];
4824
4825 (void) signal (SIGSEGV, catch_signal);
4826 (void) signal (SIGBUS, catch_signal);
4827 (void) signal (SIGABRT, catch_signal);
4828
4829 #if !defined(__SABER__) && !defined(lint)
4830 if (sizeof (efdr_t) > PAGE_USIZE)
4831 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4832 sizeof (efdr_t),
4833 PAGE_USIZE);
4834
4835 if (sizeof (page_t) != PAGE_USIZE)
4836 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4837 sizeof (page_t),
4838 PAGE_USIZE);
4839
4840 #endif
4841
4842 alloc_counts[ alloc_type_none ].alloc_name = "none";
4843 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4844 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4845 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4846 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4847 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4848 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4849 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4850 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4851
4852 int_type_info = type_info_init;
4853 int_type_info.basic_type = bt_Int;
4854
4855 void_type_info = type_info_init;
4856 void_type_info.basic_type = bt_Void;
4857
4858 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4859 switch (option)
4860 {
4861 default:
4862 had_errors++;
4863 break;
4864
4865 case 'd':
4866 debug = strtol (optarg, &num_end, 0);
4867 if ((unsigned)debug > 4 || num_end == optarg)
4868 had_errors++;
4869
4870 break;
4871
4872 case 'I':
4873 if (rename_output || obj_in_name != (char *) 0)
4874 had_errors++;
4875 else
4876 rename_output = 1;
4877
4878 /* fall through to 'i' case. */
4879
4880 case 'i':
4881 if (obj_in_name == (char *) 0)
4882 {
4883 obj_in_name = optarg;
4884 iflag++;
4885 }
4886 else
4887 had_errors++;
4888 break;
4889
4890 case 'o':
4891 if (object_name == (char *) 0)
4892 object_name = optarg;
4893 else
4894 had_errors++;
4895 break;
4896
4897 case 'v':
4898 version++;
4899 break;
4900 }
4901
4902 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4903 obj_in_name = argv[--argc];
4904
4905 if (object_name == (char *) 0 && optind <= argc - 2)
4906 object_name = argv[--argc];
4907
4908 /* If there is an output name, but no input name use
4909 the same file for both, deleting the name between
4910 opening it for input and opening it for output. */
4911 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4912 {
4913 obj_in_name = object_name;
4914 delete_input = 1;
4915 }
4916
4917 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4918 {
4919 fprintf (stderr, "Calling Sequence:\n");
4920 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4921 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4922 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4923 fprintf (stderr, "\n");
4924 fprintf (stderr, "Debug levels are:\n");
4925 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4926 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4927 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4928 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4929 return 1;
4930 }
4931
4932
4933 if (version)
4934 {
4935 fprintf (stderr, "mips-tfile version %s", version_string);
4936 #ifdef TARGET_VERSION
4937 TARGET_VERSION;
4938 #endif
4939 fputc ('\n', stderr);
4940 }
4941
4942 if (obj_in_name == (char *) 0)
4943 obj_in_name = object_name;
4944
4945 if (rename_output && rename (object_name, obj_in_name) != 0)
4946 {
4947 char *buffer = (char *) allocate_multiple_pages (4);
4948 int len;
4949 int len2;
4950 int in_fd;
4951 int out_fd;
4952
4953 /* Rename failed, copy input file */
4954 in_fd = open (object_name, O_RDONLY, 0666);
4955 if (in_fd < 0)
4956 pfatal_with_name (object_name);
4957
4958 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4959 if (out_fd < 0)
4960 pfatal_with_name (obj_in_name);
4961
4962 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4963 {
4964 len2 = write (out_fd, buffer, len);
4965 if (len2 < 0)
4966 pfatal_with_name (object_name);
4967
4968 if (len != len2)
4969 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4970 }
4971
4972 free_multiple_pages ((page_t *)buffer, 4);
4973
4974 if (len < 0)
4975 pfatal_with_name (object_name);
4976
4977 if (close (in_fd) < 0)
4978 pfatal_with_name (object_name);
4979
4980 if (close (out_fd) < 0)
4981 pfatal_with_name (obj_in_name);
4982 }
4983
4984 /* Must open input before output, since the output may be the same file, and
4985 we need to get the input handle before truncating it. */
4986 obj_in_stream = fopen (obj_in_name, "r");
4987 if (obj_in_stream == (FILE *) 0)
4988 pfatal_with_name (obj_in_name);
4989
4990 if (delete_input && unlink (obj_in_name) != 0)
4991 pfatal_with_name (obj_in_name);
4992
4993 object_stream = fopen (object_name, "w");
4994 if (object_stream == (FILE *) 0)
4995 pfatal_with_name (object_name);
4996
4997 if (strcmp (argv[optind], "-") != 0)
4998 {
4999 input_name = argv[optind];
5000 if (freopen (argv[optind], "r", stdin) != stdin)
5001 pfatal_with_name (argv[optind]);
5002 }
5003
5004 copy_object (); /* scan & copy object file */
5005 parse_input (); /* scan all of input */
5006
5007 update_headers (); /* write out tfile */
5008 write_object ();
5009
5010 if (debug)
5011 {
5012 fprintf (stderr, "\n\tAllocation summary:\n\n");
5013 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5014 if (alloc_counts[i].total_alloc)
5015 {
5016 fprintf (stderr,
5017 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5018 alloc_counts[i].alloc_name,
5019 alloc_counts[i].total_alloc,
5020 alloc_counts[i].total_free,
5021 alloc_counts[i].total_pages);
5022 }
5023 }
5024
5025 return (had_errors) ? 1 : 0;
5026 }
5027
5028 \f
5029 /* Catch a signal and exit without dumping core. */
5030
5031 STATIC void
5032 catch_signal (signum)
5033 int signum;
5034 {
5035 (void) signal (signum, SIG_DFL); /* just in case... */
5036 #ifdef NO_SYS_SIGLIST
5037 fatal ("caught signal");
5038 #else
5039 fatal (sys_siglist[signum]);
5040 #endif
5041 }
5042
5043 /* Print a fatal error message. NAME is the text.
5044 Also include a system error message based on `errno'. */
5045
5046 void
5047 pfatal_with_name (msg)
5048 char *msg;
5049 {
5050 int save_errno = errno; /* just in case.... */
5051 if (line_number > 0)
5052 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5053 else
5054 fprintf (stderr, "%s:", progname);
5055
5056 errno = save_errno;
5057 if (errno == 0)
5058 fprintf (stderr, "[errno = 0] %s\n", msg);
5059 else
5060 perror (msg);
5061
5062 exit (1);
5063 }
5064
5065 \f
5066 /* Procedure to abort with an out of bounds error message. It has
5067 type int, so it can be used with an ?: expression within the
5068 ORIG_xxx macros, but the function never returns. */
5069
5070 static int
5071 out_of_bounds (indx, max, str, prog_line)
5072 symint_t indx; /* index that is out of bounds */
5073 symint_t max; /* maximum index */
5074 const char *str; /* string to print out */
5075 int prog_line; /* line number within mips-tfile.c */
5076 {
5077 if (indx < max) /* just in case */
5078 return 0;
5079
5080 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5081 progname, input_name, line_number, indx, str, max, prog_line);
5082
5083 exit (1);
5084 return 0; /* turn off warning messages */
5085 }
5086
5087 \f
5088 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5089 like sbrk's behind it's back (or sbrk isn't available). If we use
5090 sbrk, we assume it gives us zeroed pages. */
5091
5092 #ifndef MALLOC_CHECK
5093 #ifdef USE_MALLOC
5094
5095 STATIC page_t *
5096 allocate_cluster (npages)
5097 Size_t npages;
5098 {
5099 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5100
5101 if (value == 0)
5102 fatal ("Virtual memory exhausted.");
5103
5104 if (debug > 3)
5105 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5106
5107 return value;
5108 }
5109
5110 #else /* USE_MALLOC */
5111
5112 STATIC page_t *
5113 allocate_cluster (npages)
5114 Size_t npages;
5115 {
5116 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5117 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5118
5119 if (offset != 0) /* align to a page boundary */
5120 {
5121 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5122 pfatal_with_name ("allocate_cluster");
5123
5124 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5125 }
5126
5127 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5128 pfatal_with_name ("allocate_cluster");
5129
5130 if (debug > 3)
5131 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5132
5133 return ptr;
5134 }
5135
5136 #endif /* USE_MALLOC */
5137
5138
5139 static page_t *cluster_ptr = NULL;
5140 static unsigned pages_left = 0;
5141
5142 #endif /* MALLOC_CHECK */
5143
5144
5145 /* Allocate some pages (which is initialized to 0). */
5146
5147 STATIC page_t *
5148 allocate_multiple_pages (npages)
5149 Size_t npages;
5150 {
5151 #ifndef MALLOC_CHECK
5152 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5153 {
5154 pages_left = MAX_CLUSTER_PAGES;
5155 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5156 }
5157
5158 if (npages <= pages_left)
5159 {
5160 page_t *ptr = cluster_ptr;
5161 cluster_ptr += npages;
5162 pages_left -= npages;
5163 return ptr;
5164 }
5165
5166 return allocate_cluster (npages);
5167
5168 #else /* MALLOC_CHECK */
5169 return (page_t *) xcalloc (npages, PAGE_SIZE);
5170
5171 #endif /* MALLOC_CHECK */
5172 }
5173
5174
5175 /* Release some pages. */
5176
5177 STATIC void
5178 free_multiple_pages (page_ptr, npages)
5179 page_t *page_ptr;
5180 Size_t npages;
5181 {
5182 #ifndef MALLOC_CHECK
5183 if (pages_left == 0)
5184 {
5185 cluster_ptr = page_ptr;
5186 pages_left = npages;
5187 }
5188
5189 else if ((page_ptr + npages) == cluster_ptr)
5190 {
5191 cluster_ptr -= npages;
5192 pages_left += npages;
5193 }
5194
5195 /* otherwise the page is not freed. If more than call is
5196 done, we probably should worry about it, but at present,
5197 the free pages is done right after an allocate. */
5198
5199 #else /* MALLOC_CHECK */
5200 free ((char *) page_ptr);
5201
5202 #endif /* MALLOC_CHECK */
5203 }
5204
5205
5206 /* Allocate one page (which is initialized to 0). */
5207
5208 STATIC page_t *
5209 allocate_page __proto((void))
5210 {
5211 #ifndef MALLOC_CHECK
5212 if (pages_left == 0)
5213 {
5214 pages_left = MAX_CLUSTER_PAGES;
5215 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5216 }
5217
5218 pages_left--;
5219 return cluster_ptr++;
5220
5221 #else /* MALLOC_CHECK */
5222 return (page_t *) xcalloc (1, PAGE_SIZE);
5223
5224 #endif /* MALLOC_CHECK */
5225 }
5226
5227 \f
5228 /* Allocate scoping information. */
5229
5230 STATIC scope_t *
5231 allocate_scope __proto((void))
5232 {
5233 register scope_t *ptr;
5234 static scope_t initial_scope;
5235
5236 #ifndef MALLOC_CHECK
5237 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5238 if (ptr != (scope_t *) 0)
5239 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5240
5241 else
5242 {
5243 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5244 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5245
5246 if (unallocated == 0)
5247 {
5248 unallocated = PAGE_SIZE / sizeof (scope_t);
5249 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5250 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5251 }
5252
5253 ptr = &cur_page->scope[ --unallocated ];
5254 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5255 }
5256
5257 #else
5258 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5259
5260 #endif
5261
5262 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5263 *ptr = initial_scope;
5264 return ptr;
5265 }
5266
5267 /* Free scoping information. */
5268
5269 STATIC void
5270 free_scope (ptr)
5271 scope_t *ptr;
5272 {
5273 alloc_counts[ (int)alloc_type_scope ].total_free++;
5274
5275 #ifndef MALLOC_CHECK
5276 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5277 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5278
5279 #else
5280 xfree ((PTR_T) ptr);
5281 #endif
5282
5283 }
5284
5285 \f
5286 /* Allocate links for pages in a virtual array. */
5287
5288 STATIC vlinks_t *
5289 allocate_vlinks __proto((void))
5290 {
5291 register vlinks_t *ptr;
5292 static vlinks_t initial_vlinks;
5293
5294 #ifndef MALLOC_CHECK
5295 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5296 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5297
5298 if (unallocated == 0)
5299 {
5300 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5301 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5302 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5303 }
5304
5305 ptr = &cur_page->vlinks[ --unallocated ];
5306 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5307
5308 #else
5309 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5310
5311 #endif
5312
5313 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5314 *ptr = initial_vlinks;
5315 return ptr;
5316 }
5317
5318 \f
5319 /* Allocate string hash buckets. */
5320
5321 STATIC shash_t *
5322 allocate_shash __proto((void))
5323 {
5324 register shash_t *ptr;
5325 static shash_t initial_shash;
5326
5327 #ifndef MALLOC_CHECK
5328 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5329 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5330
5331 if (unallocated == 0)
5332 {
5333 unallocated = PAGE_SIZE / sizeof (shash_t);
5334 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5335 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5336 }
5337
5338 ptr = &cur_page->shash[ --unallocated ];
5339 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5340
5341 #else
5342 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5343
5344 #endif
5345
5346 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5347 *ptr = initial_shash;
5348 return ptr;
5349 }
5350
5351 \f
5352 /* Allocate type hash buckets. */
5353
5354 STATIC thash_t *
5355 allocate_thash __proto((void))
5356 {
5357 register thash_t *ptr;
5358 static thash_t initial_thash;
5359
5360 #ifndef MALLOC_CHECK
5361 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5362 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5363
5364 if (unallocated == 0)
5365 {
5366 unallocated = PAGE_SIZE / sizeof (thash_t);
5367 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5368 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5369 }
5370
5371 ptr = &cur_page->thash[ --unallocated ];
5372 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5373
5374 #else
5375 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5376
5377 #endif
5378
5379 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5380 *ptr = initial_thash;
5381 return ptr;
5382 }
5383
5384 \f
5385 /* Allocate structure, union, or enum tag information. */
5386
5387 STATIC tag_t *
5388 allocate_tag __proto((void))
5389 {
5390 register tag_t *ptr;
5391 static tag_t initial_tag;
5392
5393 #ifndef MALLOC_CHECK
5394 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5395 if (ptr != (tag_t *) 0)
5396 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5397
5398 else
5399 {
5400 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5401 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5402
5403 if (unallocated == 0)
5404 {
5405 unallocated = PAGE_SIZE / sizeof (tag_t);
5406 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5407 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5408 }
5409
5410 ptr = &cur_page->tag[ --unallocated ];
5411 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5412 }
5413
5414 #else
5415 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5416
5417 #endif
5418
5419 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5420 *ptr = initial_tag;
5421 return ptr;
5422 }
5423
5424 /* Free scoping information. */
5425
5426 STATIC void
5427 free_tag (ptr)
5428 tag_t *ptr;
5429 {
5430 alloc_counts[ (int)alloc_type_tag ].total_free++;
5431
5432 #ifndef MALLOC_CHECK
5433 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5434 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5435
5436 #else
5437 xfree ((PTR_T) ptr);
5438 #endif
5439
5440 }
5441
5442 \f
5443 /* Allocate forward reference to a yet unknown tag. */
5444
5445 STATIC forward_t *
5446 allocate_forward __proto((void))
5447 {
5448 register forward_t *ptr;
5449 static forward_t initial_forward;
5450
5451 #ifndef MALLOC_CHECK
5452 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5453 if (ptr != (forward_t *) 0)
5454 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5455
5456 else
5457 {
5458 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5459 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5460
5461 if (unallocated == 0)
5462 {
5463 unallocated = PAGE_SIZE / sizeof (forward_t);
5464 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5465 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5466 }
5467
5468 ptr = &cur_page->forward[ --unallocated ];
5469 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5470 }
5471
5472 #else
5473 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5474
5475 #endif
5476
5477 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5478 *ptr = initial_forward;
5479 return ptr;
5480 }
5481
5482 /* Free scoping information. */
5483
5484 STATIC void
5485 free_forward (ptr)
5486 forward_t *ptr;
5487 {
5488 alloc_counts[ (int)alloc_type_forward ].total_free++;
5489
5490 #ifndef MALLOC_CHECK
5491 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5492 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5493
5494 #else
5495 xfree ((PTR_T) ptr);
5496 #endif
5497
5498 }
5499
5500 \f
5501 /* Allocate head of type hash list. */
5502
5503 STATIC thead_t *
5504 allocate_thead __proto((void))
5505 {
5506 register thead_t *ptr;
5507 static thead_t initial_thead;
5508
5509 #ifndef MALLOC_CHECK
5510 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5511 if (ptr != (thead_t *) 0)
5512 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5513
5514 else
5515 {
5516 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5517 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5518
5519 if (unallocated == 0)
5520 {
5521 unallocated = PAGE_SIZE / sizeof (thead_t);
5522 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5523 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5524 }
5525
5526 ptr = &cur_page->thead[ --unallocated ];
5527 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5528 }
5529
5530 #else
5531 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5532
5533 #endif
5534
5535 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5536 *ptr = initial_thead;
5537 return ptr;
5538 }
5539
5540 /* Free scoping information. */
5541
5542 STATIC void
5543 free_thead (ptr)
5544 thead_t *ptr;
5545 {
5546 alloc_counts[ (int)alloc_type_thead ].total_free++;
5547
5548 #ifndef MALLOC_CHECK
5549 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5550 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5551
5552 #else
5553 xfree ((PTR_T) ptr);
5554 #endif
5555
5556 }
5557
5558 #endif /* MIPS_DEBUGGING_INFO */
5559
5560 \f
5561 /* Output an error message and exit */
5562
5563 /*VARARGS*/
5564 void
5565 fatal VPROTO((const char *format, ...))
5566 {
5567 #ifndef __STDC__
5568 char *format;
5569 #endif
5570 va_list ap;
5571
5572 VA_START (ap, format);
5573
5574 #ifndef __STDC__
5575 format = va_arg (ap, char *);
5576 #endif
5577
5578 if (line_number > 0)
5579 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5580 else
5581 fprintf (stderr, "%s:", progname);
5582
5583 vfprintf (stderr, format, ap);
5584 va_end (ap);
5585 fprintf (stderr, "\n");
5586 if (line_number > 0)
5587 fprintf (stderr, "line:\t%s\n", cur_line_start);
5588
5589 saber_stop ();
5590 exit (1);
5591 }
5592
5593 /*VARARGS*/
5594 void
5595 error VPROTO((const char *format, ...))
5596 {
5597 #ifndef __STDC__
5598 char *format;
5599 #endif
5600 va_list ap;
5601
5602 VA_START (ap, format);
5603
5604 #ifndef __STDC__
5605 format = va_arg (ap, char *);
5606 #endif
5607
5608 if (line_number > 0)
5609 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5610 else
5611 fprintf (stderr, "%s:", progname);
5612
5613 vfprintf (stderr, format, ap);
5614 fprintf (stderr, "\n");
5615 if (line_number > 0)
5616 fprintf (stderr, "line:\t%s\n", cur_line_start);
5617
5618 had_errors++;
5619 va_end (ap);
5620
5621 saber_stop ();
5622 }
5623
5624 /* More 'friendly' abort that prints the line and file.
5625 config.h can #define abort fancy_abort if you like that sort of thing. */
5626
5627 void
5628 fancy_abort ()
5629 {
5630 fatal ("Internal abort.");
5631 }
5632 \f
5633
5634 /* When `malloc.c' is compiled with `rcheck' defined,
5635 it calls this function to report clobberage. */
5636
5637 void
5638 botch (s)
5639 const char *s;
5640 {
5641 fatal (s);
5642 }
5643
5644 /* Same as `malloc' but report error if no memory available. */
5645
5646 PTR_T
5647 xmalloc (size)
5648 Size_t size;
5649 {
5650 register PTR_T value = malloc (size);
5651 if (value == 0)
5652 fatal ("Virtual memory exhausted.");
5653
5654 if (debug > 3)
5655 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5656
5657 return value;
5658 }
5659
5660 /* Same as `calloc' but report error if no memory available. */
5661
5662 PTR_T
5663 xcalloc (size1, size2)
5664 Size_t size1, size2;
5665 {
5666 register PTR_T value = calloc (size1, size2);
5667 if (value == 0)
5668 fatal ("Virtual memory exhausted.");
5669
5670 if (debug > 3)
5671 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5672 value, size1, size2, size1+size2);
5673
5674 return value;
5675 }
5676
5677 /* Same as `realloc' but report error if no memory available. */
5678
5679 PTR_T
5680 xrealloc (ptr, size)
5681 PTR_T ptr;
5682 Size_t size;
5683 {
5684 register PTR_T result = realloc (ptr, size);
5685 if (!result)
5686 fatal ("Virtual memory exhausted.");
5687
5688 if (debug > 3)
5689 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5690 result, size, ptr);
5691
5692 return result;
5693 }
5694
5695 void
5696 xfree (ptr)
5697 PTR_T ptr;
5698 {
5699 if (debug > 3)
5700 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5701
5702 free (ptr);
5703 }
5704
5705 \f
5706 /* Define our own index/rindex, since the local and global symbol
5707 structures as defined by MIPS has an 'index' field. */
5708
5709 STATIC char *
5710 local_index (str, sentinel)
5711 const char *str;
5712 int sentinel;
5713 {
5714 int ch;
5715
5716 for ( ; (ch = *str) != sentinel; str++)
5717 {
5718 if (ch == '\0')
5719 return (char *) 0;
5720 }
5721
5722 return (char *)str;
5723 }
5724
5725 STATIC char *
5726 local_rindex (str, sentinel)
5727 const char *str;
5728 int sentinel;
5729 {
5730 int ch;
5731 const char *ret = (const char *) 0;
5732
5733 for ( ; (ch = *str) != '\0'; str++)
5734 {
5735 if (ch == sentinel)
5736 ret = str;
5737 }
5738
5739 return (char *)ret;
5740 }
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