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* Check in merge from gcc2. See ChangeLog.11 and ChangeLog.12
[gcc.git] / gcc / mips-tfile.c
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 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 <stdio.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 #ifdef HAVE_VPRINTF
675 extern void fatal PVPROTO((const char *format, ...));
676 extern void error PVPROTO((const char *format, ...));
677 #else
678 /* We must not provide any prototype here, even if ANSI C. */
679 extern void fatal __proto(());
680 extern void error __proto(());
681 #endif
682
683 \f
684 #ifndef MIPS_DEBUGGING_INFO
685
686 static int line_number;
687 static int cur_line_start;
688 static int debug;
689 static int had_errors;
690 static char *progname;
691 static char *input_name;
692
693 int
694 main ()
695 {
696 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
697 exit (1);
698 }
699
700 #else /* MIPS_DEBUGGING defined */
701 \f
702 /* The local and global symbols have a field index, so undo any defines
703 of index -> strchr and rindex -> strrchr. */
704
705 #undef rindex
706 #undef index
707
708 #include <sys/types.h>
709 #include <string.h>
710 #include <ctype.h>
711 #include <fcntl.h>
712 #include <errno.h>
713 #include <signal.h>
714 #include <sys/stat.h>
715
716 #ifndef CROSS_COMPILE
717 #include <a.out.h>
718 #else
719 #include "mips/a.out.h"
720 #endif /* CROSS_COMPILE */
721
722 #if defined (USG) || defined (NO_STAB_H)
723 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
724 #else
725 #include <stab.h> /* On BSD, use the system's stab.h. */
726 #endif /* not USG */
727
728 #ifdef __GNU_STAB__
729 #define STAB_CODE_TYPE enum __stab_debug_code
730 #else
731 #define STAB_CODE_TYPE int
732 #endif
733
734 #ifdef _OSF_SOURCE
735 #define HAS_STDLIB_H
736 #define HAS_UNISTD_H
737 #endif
738
739 #ifdef HAS_STDLIB_H
740 #include <stdlib.h>
741 #endif
742
743 #ifdef HAS_UNISTD_H
744 #include <unistd.h>
745 #endif
746
747 #ifndef errno
748 extern int errno; /* MIPS errno.h doesn't declare this */
749 #endif
750
751 #ifndef MALLOC_CHECK
752 #ifdef __SABER__
753 #define MALLOC_CHECK
754 #endif
755 #endif
756
757 #define IS_ASM_IDENT(ch) \
758 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
759
760 \f
761 /* Redefinition of of storage classes as an enumeration for better
762 debugging. */
763
764 typedef enum sc {
765 sc_Nil = scNil, /* no storage class */
766 sc_Text = scText, /* text symbol */
767 sc_Data = scData, /* initialized data symbol */
768 sc_Bss = scBss, /* un-initialized data symbol */
769 sc_Register = scRegister, /* value of symbol is register number */
770 sc_Abs = scAbs, /* value of symbol is absolute */
771 sc_Undefined = scUndefined, /* who knows? */
772 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
773 sc_Bits = scBits, /* this is a bit field */
774 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
775 sc_RegImage = scRegImage, /* register value saved on stack */
776 sc_Info = scInfo, /* symbol contains debugger information */
777 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
778 sc_SData = scSData, /* load time only small data */
779 sc_SBss = scSBss, /* load time only small common */
780 sc_RData = scRData, /* load time only read only data */
781 sc_Var = scVar, /* Var parameter (fortran,pascal) */
782 sc_Common = scCommon, /* common variable */
783 sc_SCommon = scSCommon, /* small common */
784 sc_VarRegister = scVarRegister, /* Var parameter in a register */
785 sc_Variant = scVariant, /* Variant record */
786 sc_SUndefined = scSUndefined, /* small undefined(external) data */
787 sc_Init = scInit, /* .init section symbol */
788 sc_Max = scMax /* Max storage class+1 */
789 } sc_t;
790
791 /* Redefinition of symbol type. */
792
793 typedef enum st {
794 st_Nil = stNil, /* Nuthin' special */
795 st_Global = stGlobal, /* external symbol */
796 st_Static = stStatic, /* static */
797 st_Param = stParam, /* procedure argument */
798 st_Local = stLocal, /* local variable */
799 st_Label = stLabel, /* label */
800 st_Proc = stProc, /* " " Procedure */
801 st_Block = stBlock, /* beginning of block */
802 st_End = stEnd, /* end (of anything) */
803 st_Member = stMember, /* member (of anything - struct/union/enum */
804 st_Typedef = stTypedef, /* type definition */
805 st_File = stFile, /* file name */
806 st_RegReloc = stRegReloc, /* register relocation */
807 st_Forward = stForward, /* forwarding address */
808 st_StaticProc = stStaticProc, /* load time only static procs */
809 st_Constant = stConstant, /* const */
810 st_Str = stStr, /* string */
811 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
812 st_Expr = stExpr, /* 2+2 vs. 4 */
813 st_Type = stType, /* post-coercion SER */
814 st_Max = stMax /* max type+1 */
815 } st_t;
816
817 /* Redefinition of type qualifiers. */
818
819 typedef enum tq {
820 tq_Nil = tqNil, /* bt is what you see */
821 tq_Ptr = tqPtr, /* pointer */
822 tq_Proc = tqProc, /* procedure */
823 tq_Array = tqArray, /* duh */
824 tq_Far = tqFar, /* longer addressing - 8086/8 land */
825 tq_Vol = tqVol, /* volatile */
826 tq_Max = tqMax /* Max type qualifier+1 */
827 } tq_t;
828
829 /* Redefinition of basic types. */
830
831 typedef enum bt {
832 bt_Nil = btNil, /* undefined */
833 bt_Adr = btAdr, /* address - integer same size as pointer */
834 bt_Char = btChar, /* character */
835 bt_UChar = btUChar, /* unsigned character */
836 bt_Short = btShort, /* short */
837 bt_UShort = btUShort, /* unsigned short */
838 bt_Int = btInt, /* int */
839 bt_UInt = btUInt, /* unsigned int */
840 bt_Long = btLong, /* long */
841 bt_ULong = btULong, /* unsigned long */
842 bt_Float = btFloat, /* float (real) */
843 bt_Double = btDouble, /* Double (real) */
844 bt_Struct = btStruct, /* Structure (Record) */
845 bt_Union = btUnion, /* Union (variant) */
846 bt_Enum = btEnum, /* Enumerated */
847 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
848 bt_Range = btRange, /* subrange of int */
849 bt_Set = btSet, /* pascal sets */
850 bt_Complex = btComplex, /* fortran complex */
851 bt_DComplex = btDComplex, /* fortran double complex */
852 bt_Indirect = btIndirect, /* forward or unnamed typedef */
853 bt_FixedDec = btFixedDec, /* Fixed Decimal */
854 bt_FloatDec = btFloatDec, /* Float Decimal */
855 bt_String = btString, /* Varying Length Character String */
856 bt_Bit = btBit, /* Aligned Bit String */
857 bt_Picture = btPicture, /* Picture */
858
859 #ifdef btVoid
860 bt_Void = btVoid, /* Void */
861 #else
862 #define bt_Void bt_Nil
863 #endif
864
865 bt_Max = btMax /* Max basic type+1 */
866 } bt_t;
867
868 \f
869
870 /* Basic COFF storage classes. */
871 enum coff_storage {
872 C_EFCN = -1,
873 C_NULL = 0,
874 C_AUTO = 1,
875 C_EXT = 2,
876 C_STAT = 3,
877 C_REG = 4,
878 C_EXTDEF = 5,
879 C_LABEL = 6,
880 C_ULABEL = 7,
881 C_MOS = 8,
882 C_ARG = 9,
883 C_STRTAG = 10,
884 C_MOU = 11,
885 C_UNTAG = 12,
886 C_TPDEF = 13,
887 C_USTATIC = 14,
888 C_ENTAG = 15,
889 C_MOE = 16,
890 C_REGPARM = 17,
891 C_FIELD = 18,
892 C_BLOCK = 100,
893 C_FCN = 101,
894 C_EOS = 102,
895 C_FILE = 103,
896 C_LINE = 104,
897 C_ALIAS = 105,
898 C_HIDDEN = 106,
899 C_MAX = 107
900 } coff_storage_t;
901
902 /* Regular COFF fundamental type. */
903 typedef enum coff_type {
904 T_NULL = 0,
905 T_ARG = 1,
906 T_CHAR = 2,
907 T_SHORT = 3,
908 T_INT = 4,
909 T_LONG = 5,
910 T_FLOAT = 6,
911 T_DOUBLE = 7,
912 T_STRUCT = 8,
913 T_UNION = 9,
914 T_ENUM = 10,
915 T_MOE = 11,
916 T_UCHAR = 12,
917 T_USHORT = 13,
918 T_UINT = 14,
919 T_ULONG = 15,
920 T_MAX = 16
921 } coff_type_t;
922
923 /* Regular COFF derived types. */
924 typedef enum coff_dt {
925 DT_NON = 0,
926 DT_PTR = 1,
927 DT_FCN = 2,
928 DT_ARY = 3,
929 DT_MAX = 4
930 } coff_dt_t;
931
932 #define N_BTMASK 017 /* bitmask to isolate basic type */
933 #define N_TMASK 003 /* bitmask to isolate derived type */
934 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
935 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
936 #define N_TQ 6 /* # of type qualifiers */
937
938 /* States for whether to hash type or not. */
939 typedef enum hash_state {
940 hash_no = 0, /* don't hash type */
941 hash_yes = 1, /* ok to hash type, or use previous hash */
942 hash_record = 2 /* ok to record hash, but don't use prev. */
943 } hash_state_t;
944
945
946 /* Types of different sized allocation requests. */
947 enum alloc_type {
948 alloc_type_none, /* dummy value */
949 alloc_type_scope, /* nested scopes linked list */
950 alloc_type_vlinks, /* glue linking pages in varray */
951 alloc_type_shash, /* string hash element */
952 alloc_type_thash, /* type hash element */
953 alloc_type_tag, /* struct/union/tag element */
954 alloc_type_forward, /* element to hold unknown tag */
955 alloc_type_thead, /* head of type hash list */
956 alloc_type_varray, /* general varray allocation */
957 alloc_type_last /* last+1 element for array bounds */
958 };
959
960 \f
961 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
962 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
963
964
965 /* Structures to provide n-number of virtual arrays, each of which can
966 grow linearly, and which are written in the object file as sequential
967 pages. On systems with a BSD malloc that define USE_MALLOC, the
968 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
969 adds it's overhead, and rounds up to the next power of 2. Pages are
970 linked together via a linked list.
971
972 If PAGE_SIZE is > 4096, the string length in the shash_t structure
973 can't be represented (assuming there are strings > 4096 bytes). */
974
975 #ifndef PAGE_SIZE
976 #define PAGE_SIZE 4096 /* size of varray pages */
977 #endif
978
979 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
980
981
982 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
983 #ifndef USE_MALLOC /* in one memory request */
984 #define MAX_CLUSTER_PAGES 64
985 #else
986 #define MAX_CLUSTER_PAGES 63
987 #endif
988 #endif
989
990
991 /* Linked list connecting separate page allocations. */
992 typedef struct vlinks {
993 struct vlinks *prev; /* previous set of pages */
994 struct vlinks *next; /* next set of pages */
995 union page *datum; /* start of page */
996 unsigned long start_index; /* starting index # of page */
997 } vlinks_t;
998
999
1000 /* Virtual array header. */
1001 typedef struct varray {
1002 vlinks_t *first; /* first page link */
1003 vlinks_t *last; /* last page link */
1004 unsigned long num_allocated; /* # objects allocated */
1005 unsigned short object_size; /* size in bytes of each object */
1006 unsigned short objects_per_page; /* # objects that can fit on a page */
1007 unsigned short objects_last_page; /* # objects allocated on last page */
1008 } varray_t;
1009
1010 #ifndef MALLOC_CHECK
1011 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
1012 #else
1013 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
1014 #endif
1015
1016 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1017 (vlinks_t *) 0, /* first */ \
1018 (vlinks_t *) 0, /* last */ \
1019 0, /* num_allocated */ \
1020 sizeof (type), /* object_size */ \
1021 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1022 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1023 }
1024
1025 /* Master type for indexes within the symbol table. */
1026 typedef unsigned long symint_t;
1027
1028
1029 /* Linked list support for nested scopes (file, block, structure, etc.). */
1030 typedef struct scope {
1031 struct scope *prev; /* previous scope level */
1032 struct scope *free; /* free list pointer */
1033 SYMR *lsym; /* pointer to local symbol node */
1034 symint_t lnumber; /* lsym index */
1035 st_t type; /* type of the node */
1036 } scope_t;
1037
1038
1039 /* Forward reference list for tags referenced, but not yet defined. */
1040 typedef struct forward {
1041 struct forward *next; /* next forward reference */
1042 struct forward *free; /* free list pointer */
1043 AUXU *ifd_ptr; /* pointer to store file index */
1044 AUXU *index_ptr; /* pointer to store symbol index */
1045 AUXU *type_ptr; /* pointer to munge type info */
1046 } forward_t;
1047
1048
1049 /* Linked list support for tags. The first tag in the list is always
1050 the current tag for that block. */
1051 typedef struct tag {
1052 struct tag *free; /* free list pointer */
1053 struct shash *hash_ptr; /* pointer to the hash table head */
1054 struct tag *same_name; /* tag with same name in outer scope */
1055 struct tag *same_block; /* next tag defined in the same block. */
1056 struct forward *forward_ref; /* list of forward references */
1057 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1058 symint_t ifd; /* file # tag defined in */
1059 symint_t indx; /* index within file's local symbols */
1060 } tag_t;
1061
1062
1063 /* Head of a block's linked list of tags. */
1064 typedef struct thead {
1065 struct thead *prev; /* previous block */
1066 struct thead *free; /* free list pointer */
1067 struct tag *first_tag; /* first tag in block defined */
1068 } thead_t;
1069
1070
1071 /* Union containing pointers to each the small structures which are freed up. */
1072 typedef union small_free {
1073 scope_t *f_scope; /* scope structure */
1074 thead_t *f_thead; /* tag head structure */
1075 tag_t *f_tag; /* tag element structure */
1076 forward_t *f_forward; /* forward tag reference */
1077 } small_free_t;
1078
1079
1080 /* String hash table support. The size of the hash table must fit
1081 within a page. */
1082
1083 #ifndef SHASH_SIZE
1084 #define SHASH_SIZE 1009
1085 #endif
1086
1087 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1088
1089 typedef struct shash {
1090 struct shash *next; /* next hash value */
1091 char *string; /* string we are hashing */
1092 symint_t len; /* string length */
1093 symint_t indx; /* index within string table */
1094 EXTR *esym_ptr; /* global symbol pointer */
1095 SYMR *sym_ptr; /* local symbol pointer */
1096 SYMR *end_ptr; /* symbol pointer to end block */
1097 tag_t *tag_ptr; /* tag pointer */
1098 PDR *proc_ptr; /* procedure descriptor pointer */
1099 } shash_t;
1100
1101
1102 /* Type hash table support. The size of the hash table must fit
1103 within a page with the other extended file descriptor information.
1104 Because unique types which are hashed are fewer in number than
1105 strings, we use a smaller hash value. */
1106
1107 #ifndef THASH_SIZE
1108 #define THASH_SIZE 113
1109 #endif
1110
1111 typedef struct thash {
1112 struct thash *next; /* next hash value */
1113 AUXU type; /* type we are hashing */
1114 symint_t indx; /* index within string table */
1115 } thash_t;
1116
1117
1118 /* Extended file descriptor that contains all of the support necessary
1119 to add things to each file separately. */
1120 typedef struct efdr {
1121 FDR fdr; /* File header to be written out */
1122 FDR *orig_fdr; /* original file header */
1123 char *name; /* filename */
1124 int name_len; /* length of the filename */
1125 symint_t void_type; /* aux. pointer to 'void' type */
1126 symint_t int_type; /* aux. pointer to 'int' type */
1127 scope_t *cur_scope; /* current nested scopes */
1128 symint_t file_index; /* current file number */
1129 int nested_scopes; /* # nested scopes */
1130 varray_t strings; /* local strings */
1131 varray_t symbols; /* local symbols */
1132 varray_t procs; /* procedures */
1133 varray_t aux_syms; /* auxiliary symbols */
1134 struct efdr *next_file; /* next file descriptor */
1135 /* string/type hash tables */
1136 shash_t **shash_head; /* string hash table */
1137 thash_t *thash_head[THASH_SIZE];
1138 } efdr_t;
1139
1140 /* Pre-initialized extended file structure. */
1141 static efdr_t init_file =
1142 {
1143 { /* FDR structure */
1144 0, /* adr: memory address of beginning of file */
1145 0, /* rss: file name (of source, if known) */
1146 0, /* issBase: file's string space */
1147 0, /* cbSs: number of bytes in the ss */
1148 0, /* isymBase: beginning of symbols */
1149 0, /* csym: count file's of symbols */
1150 0, /* ilineBase: file's line symbols */
1151 0, /* cline: count of file's line symbols */
1152 0, /* ioptBase: file's optimization entries */
1153 0, /* copt: count of file's optimization entries */
1154 0, /* ipdFirst: start of procedures for this file */
1155 0, /* cpd: count of procedures for this file */
1156 0, /* iauxBase: file's auxiliary entries */
1157 0, /* caux: count of file's auxiliary entries */
1158 0, /* rfdBase: index into the file indirect table */
1159 0, /* crfd: count file indirect entries */
1160 langC, /* lang: language for this file */
1161 1, /* fMerge: whether this file can be merged */
1162 0, /* fReadin: true if read in (not just created) */
1163 #ifdef HOST_WORDS_BIG_ENDIAN
1164 1, /* fBigendian: if 1, compiled on big endian machine */
1165 #else
1166 0, /* fBigendian: if 1, compiled on big endian machine */
1167 #endif
1168 GLEVEL_2, /* glevel: level this file was compiled with */
1169 0, /* reserved: reserved for future use */
1170 0, /* cbLineOffset: byte offset from header for this file ln's */
1171 0, /* cbLine: size of lines for this file */
1172 },
1173
1174 (FDR *) 0, /* orig_fdr: original file header pointer */
1175 (char *) 0, /* name: pointer to filename */
1176 0, /* name_len: length of filename */
1177 0, /* void_type: ptr to aux node for void type */
1178 0, /* int_type: ptr to aux node for int type */
1179 (scope_t *) 0, /* cur_scope: current scope being processed */
1180 0, /* file_index: current file # */
1181 0, /* nested_scopes: # nested scopes */
1182 INIT_VARRAY (char), /* strings: local string varray */
1183 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1184 INIT_VARRAY (PDR), /* procs: procedure varray */
1185 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1186
1187 (struct efdr *) 0, /* next_file: next file structure */
1188
1189 (shash_t **) 0, /* shash_head: string hash table */
1190 { 0 }, /* thash_head: type hash table */
1191 };
1192
1193
1194 static efdr_t *first_file; /* first file descriptor */
1195 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1196
1197
1198 /* Union of various things that are held in pages. */
1199 typedef union page {
1200 char byte [ PAGE_SIZE ];
1201 unsigned char ubyte [ PAGE_SIZE ];
1202 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1203 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1204 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1205 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1206 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1207 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1208 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1209 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1210 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1211 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1212 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1213 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1214 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1215 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1216 } page_t;
1217
1218
1219 /* Structure holding allocation information for small sized structures. */
1220 typedef struct alloc_info {
1221 char *alloc_name; /* name of this allocation type (must be first) */
1222 page_t *cur_page; /* current page being allocated from */
1223 small_free_t free_list; /* current free list if any */
1224 int unallocated; /* number of elements unallocated on page */
1225 int total_alloc; /* total number of allocations */
1226 int total_free; /* total number of frees */
1227 int total_pages; /* total number of pages allocated */
1228 } alloc_info_t;
1229
1230 /* Type information collected together. */
1231 typedef struct type_info {
1232 bt_t basic_type; /* basic type */
1233 coff_type_t orig_type; /* original COFF-based type */
1234 int num_tq; /* # type qualifiers */
1235 int num_dims; /* # dimensions */
1236 int num_sizes; /* # sizes */
1237 int extra_sizes; /* # extra sizes not tied with dims */
1238 tag_t * tag_ptr; /* tag pointer */
1239 int bitfield; /* symbol is a bitfield */
1240 int unknown_tag; /* this is an unknown tag */
1241 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1242 symint_t dimensions [N_TQ]; /* dimensions for each array */
1243 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1244 struct/union/enum + bitfield size */
1245 } type_info_t;
1246
1247 /* Pre-initialized type_info struct. */
1248 static type_info_t type_info_init = {
1249 bt_Nil, /* basic type */
1250 T_NULL, /* original COFF-based type */
1251 0, /* # type qualifiers */
1252 0, /* # dimensions */
1253 0, /* # sizes */
1254 0, /* sizes not tied with dims */
1255 NULL, /* ptr to tag */
1256 0, /* bitfield */
1257 0, /* unknown tag */
1258 { /* type qualifiers */
1259 tq_Nil,
1260 tq_Nil,
1261 tq_Nil,
1262 tq_Nil,
1263 tq_Nil,
1264 tq_Nil,
1265 },
1266 { /* dimensions */
1267 0,
1268 0,
1269 0,
1270 0,
1271 0,
1272 0
1273 },
1274 { /* sizes */
1275 0,
1276 0,
1277 0,
1278 0,
1279 0,
1280 0,
1281 0,
1282 0,
1283 },
1284 };
1285
1286
1287 /* Global virtual arrays & hash table for external strings as well as
1288 for the tags table and global tables for file descriptors, and
1289 dense numbers. */
1290
1291 static varray_t file_desc = INIT_VARRAY (efdr_t);
1292 static varray_t dense_num = INIT_VARRAY (DNR);
1293 static varray_t tag_strings = INIT_VARRAY (char);
1294 static varray_t ext_strings = INIT_VARRAY (char);
1295 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1296
1297 static shash_t *orig_str_hash[SHASH_SIZE];
1298 static shash_t *ext_str_hash [SHASH_SIZE];
1299 static shash_t *tag_hash [SHASH_SIZE];
1300
1301 /* Static types for int and void. Also, remember the last function's
1302 type (which is set up when we encounter the declaration for the
1303 function, and used when the end block for the function is emitted. */
1304
1305 static type_info_t int_type_info;
1306 static type_info_t void_type_info;
1307 static type_info_t last_func_type_info;
1308 static EXTR *last_func_eptr;
1309
1310
1311 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1312 really should use bt_Void, but this causes the current ecoff GDB to
1313 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1314 2.0) doesn't understand it, even though the compiler generates it.
1315 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1316 suite, but for now go with what works. */
1317
1318 static bt_t map_coff_types[ (int)T_MAX ] = {
1319 bt_Nil, /* T_NULL */
1320 bt_Nil, /* T_ARG */
1321 bt_Char, /* T_CHAR */
1322 bt_Short, /* T_SHORT */
1323 bt_Int, /* T_INT */
1324 bt_Long, /* T_LONG */
1325 bt_Float, /* T_FLOAT */
1326 bt_Double, /* T_DOUBLE */
1327 bt_Struct, /* T_STRUCT */
1328 bt_Union, /* T_UNION */
1329 bt_Enum, /* T_ENUM */
1330 bt_Enum, /* T_MOE */
1331 bt_UChar, /* T_UCHAR */
1332 bt_UShort, /* T_USHORT */
1333 bt_UInt, /* T_UINT */
1334 bt_ULong /* T_ULONG */
1335 };
1336
1337 /* Convert COFF storage class to ECOFF storage class. */
1338 static sc_t map_coff_storage[ (int)C_MAX ] = {
1339 sc_Nil, /* 0: C_NULL */
1340 sc_Abs, /* 1: C_AUTO auto var */
1341 sc_Undefined, /* 2: C_EXT external */
1342 sc_Data, /* 3: C_STAT static */
1343 sc_Register, /* 4: C_REG register */
1344 sc_Undefined, /* 5: C_EXTDEF ??? */
1345 sc_Text, /* 6: C_LABEL label */
1346 sc_Text, /* 7: C_ULABEL user label */
1347 sc_Info, /* 8: C_MOS member of struct */
1348 sc_Abs, /* 9: C_ARG argument */
1349 sc_Info, /* 10: C_STRTAG struct tag */
1350 sc_Info, /* 11: C_MOU member of union */
1351 sc_Info, /* 12: C_UNTAG union tag */
1352 sc_Info, /* 13: C_TPDEF typedef */
1353 sc_Data, /* 14: C_USTATIC ??? */
1354 sc_Info, /* 15: C_ENTAG enum tag */
1355 sc_Info, /* 16: C_MOE member of enum */
1356 sc_Register, /* 17: C_REGPARM register parameter */
1357 sc_Bits, /* 18; C_FIELD bitfield */
1358 sc_Nil, /* 19 */
1359 sc_Nil, /* 20 */
1360 sc_Nil, /* 21 */
1361 sc_Nil, /* 22 */
1362 sc_Nil, /* 23 */
1363 sc_Nil, /* 24 */
1364 sc_Nil, /* 25 */
1365 sc_Nil, /* 26 */
1366 sc_Nil, /* 27 */
1367 sc_Nil, /* 28 */
1368 sc_Nil, /* 29 */
1369 sc_Nil, /* 30 */
1370 sc_Nil, /* 31 */
1371 sc_Nil, /* 32 */
1372 sc_Nil, /* 33 */
1373 sc_Nil, /* 34 */
1374 sc_Nil, /* 35 */
1375 sc_Nil, /* 36 */
1376 sc_Nil, /* 37 */
1377 sc_Nil, /* 38 */
1378 sc_Nil, /* 39 */
1379 sc_Nil, /* 40 */
1380 sc_Nil, /* 41 */
1381 sc_Nil, /* 42 */
1382 sc_Nil, /* 43 */
1383 sc_Nil, /* 44 */
1384 sc_Nil, /* 45 */
1385 sc_Nil, /* 46 */
1386 sc_Nil, /* 47 */
1387 sc_Nil, /* 48 */
1388 sc_Nil, /* 49 */
1389 sc_Nil, /* 50 */
1390 sc_Nil, /* 51 */
1391 sc_Nil, /* 52 */
1392 sc_Nil, /* 53 */
1393 sc_Nil, /* 54 */
1394 sc_Nil, /* 55 */
1395 sc_Nil, /* 56 */
1396 sc_Nil, /* 57 */
1397 sc_Nil, /* 58 */
1398 sc_Nil, /* 59 */
1399 sc_Nil, /* 60 */
1400 sc_Nil, /* 61 */
1401 sc_Nil, /* 62 */
1402 sc_Nil, /* 63 */
1403 sc_Nil, /* 64 */
1404 sc_Nil, /* 65 */
1405 sc_Nil, /* 66 */
1406 sc_Nil, /* 67 */
1407 sc_Nil, /* 68 */
1408 sc_Nil, /* 69 */
1409 sc_Nil, /* 70 */
1410 sc_Nil, /* 71 */
1411 sc_Nil, /* 72 */
1412 sc_Nil, /* 73 */
1413 sc_Nil, /* 74 */
1414 sc_Nil, /* 75 */
1415 sc_Nil, /* 76 */
1416 sc_Nil, /* 77 */
1417 sc_Nil, /* 78 */
1418 sc_Nil, /* 79 */
1419 sc_Nil, /* 80 */
1420 sc_Nil, /* 81 */
1421 sc_Nil, /* 82 */
1422 sc_Nil, /* 83 */
1423 sc_Nil, /* 84 */
1424 sc_Nil, /* 85 */
1425 sc_Nil, /* 86 */
1426 sc_Nil, /* 87 */
1427 sc_Nil, /* 88 */
1428 sc_Nil, /* 89 */
1429 sc_Nil, /* 90 */
1430 sc_Nil, /* 91 */
1431 sc_Nil, /* 92 */
1432 sc_Nil, /* 93 */
1433 sc_Nil, /* 94 */
1434 sc_Nil, /* 95 */
1435 sc_Nil, /* 96 */
1436 sc_Nil, /* 97 */
1437 sc_Nil, /* 98 */
1438 sc_Nil, /* 99 */
1439 sc_Text, /* 100: C_BLOCK block start/end */
1440 sc_Text, /* 101: C_FCN function start/end */
1441 sc_Info, /* 102: C_EOS end of struct/union/enum */
1442 sc_Nil, /* 103: C_FILE file start */
1443 sc_Nil, /* 104: C_LINE line number */
1444 sc_Nil, /* 105: C_ALIAS combined type info */
1445 sc_Nil, /* 106: C_HIDDEN ??? */
1446 };
1447
1448 /* Convert COFF storage class to ECOFF symbol type. */
1449 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1450 st_Nil, /* 0: C_NULL */
1451 st_Local, /* 1: C_AUTO auto var */
1452 st_Global, /* 2: C_EXT external */
1453 st_Static, /* 3: C_STAT static */
1454 st_Local, /* 4: C_REG register */
1455 st_Global, /* 5: C_EXTDEF ??? */
1456 st_Label, /* 6: C_LABEL label */
1457 st_Label, /* 7: C_ULABEL user label */
1458 st_Member, /* 8: C_MOS member of struct */
1459 st_Param, /* 9: C_ARG argument */
1460 st_Block, /* 10: C_STRTAG struct tag */
1461 st_Member, /* 11: C_MOU member of union */
1462 st_Block, /* 12: C_UNTAG union tag */
1463 st_Typedef, /* 13: C_TPDEF typedef */
1464 st_Static, /* 14: C_USTATIC ??? */
1465 st_Block, /* 15: C_ENTAG enum tag */
1466 st_Member, /* 16: C_MOE member of enum */
1467 st_Param, /* 17: C_REGPARM register parameter */
1468 st_Member, /* 18; C_FIELD bitfield */
1469 st_Nil, /* 19 */
1470 st_Nil, /* 20 */
1471 st_Nil, /* 21 */
1472 st_Nil, /* 22 */
1473 st_Nil, /* 23 */
1474 st_Nil, /* 24 */
1475 st_Nil, /* 25 */
1476 st_Nil, /* 26 */
1477 st_Nil, /* 27 */
1478 st_Nil, /* 28 */
1479 st_Nil, /* 29 */
1480 st_Nil, /* 30 */
1481 st_Nil, /* 31 */
1482 st_Nil, /* 32 */
1483 st_Nil, /* 33 */
1484 st_Nil, /* 34 */
1485 st_Nil, /* 35 */
1486 st_Nil, /* 36 */
1487 st_Nil, /* 37 */
1488 st_Nil, /* 38 */
1489 st_Nil, /* 39 */
1490 st_Nil, /* 40 */
1491 st_Nil, /* 41 */
1492 st_Nil, /* 42 */
1493 st_Nil, /* 43 */
1494 st_Nil, /* 44 */
1495 st_Nil, /* 45 */
1496 st_Nil, /* 46 */
1497 st_Nil, /* 47 */
1498 st_Nil, /* 48 */
1499 st_Nil, /* 49 */
1500 st_Nil, /* 50 */
1501 st_Nil, /* 51 */
1502 st_Nil, /* 52 */
1503 st_Nil, /* 53 */
1504 st_Nil, /* 54 */
1505 st_Nil, /* 55 */
1506 st_Nil, /* 56 */
1507 st_Nil, /* 57 */
1508 st_Nil, /* 58 */
1509 st_Nil, /* 59 */
1510 st_Nil, /* 60 */
1511 st_Nil, /* 61 */
1512 st_Nil, /* 62 */
1513 st_Nil, /* 63 */
1514 st_Nil, /* 64 */
1515 st_Nil, /* 65 */
1516 st_Nil, /* 66 */
1517 st_Nil, /* 67 */
1518 st_Nil, /* 68 */
1519 st_Nil, /* 69 */
1520 st_Nil, /* 70 */
1521 st_Nil, /* 71 */
1522 st_Nil, /* 72 */
1523 st_Nil, /* 73 */
1524 st_Nil, /* 74 */
1525 st_Nil, /* 75 */
1526 st_Nil, /* 76 */
1527 st_Nil, /* 77 */
1528 st_Nil, /* 78 */
1529 st_Nil, /* 79 */
1530 st_Nil, /* 80 */
1531 st_Nil, /* 81 */
1532 st_Nil, /* 82 */
1533 st_Nil, /* 83 */
1534 st_Nil, /* 84 */
1535 st_Nil, /* 85 */
1536 st_Nil, /* 86 */
1537 st_Nil, /* 87 */
1538 st_Nil, /* 88 */
1539 st_Nil, /* 89 */
1540 st_Nil, /* 90 */
1541 st_Nil, /* 91 */
1542 st_Nil, /* 92 */
1543 st_Nil, /* 93 */
1544 st_Nil, /* 94 */
1545 st_Nil, /* 95 */
1546 st_Nil, /* 96 */
1547 st_Nil, /* 97 */
1548 st_Nil, /* 98 */
1549 st_Nil, /* 99 */
1550 st_Block, /* 100: C_BLOCK block start/end */
1551 st_Proc, /* 101: C_FCN function start/end */
1552 st_End, /* 102: C_EOS end of struct/union/enum */
1553 st_File, /* 103: C_FILE file start */
1554 st_Nil, /* 104: C_LINE line number */
1555 st_Nil, /* 105: C_ALIAS combined type info */
1556 st_Nil, /* 106: C_HIDDEN ??? */
1557 };
1558
1559 /* Map COFF derived types to ECOFF type qualifiers. */
1560 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1561 tq_Nil, /* 0: DT_NON no more qualifiers */
1562 tq_Ptr, /* 1: DT_PTR pointer */
1563 tq_Proc, /* 2: DT_FCN function */
1564 tq_Array, /* 3: DT_ARY array */
1565 };
1566
1567
1568 /* Keep track of different sized allocation requests. */
1569 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1570
1571 \f
1572 /* Pointers and such to the original symbol table that is read in. */
1573 static struct filehdr orig_file_header; /* global object file header */
1574
1575 static HDRR orig_sym_hdr; /* symbolic header on input */
1576 static char *orig_linenum; /* line numbers */
1577 static DNR *orig_dense; /* dense numbers */
1578 static PDR *orig_procs; /* procedures */
1579 static SYMR *orig_local_syms; /* local symbols */
1580 static OPTR *orig_opt_syms; /* optimization symbols */
1581 static AUXU *orig_aux_syms; /* auxiliary symbols */
1582 static char *orig_local_strs; /* local strings */
1583 static char *orig_ext_strs; /* external strings */
1584 static FDR *orig_files; /* file descriptors */
1585 static symint_t *orig_rfds; /* relative file desc's */
1586 static EXTR *orig_ext_syms; /* external symbols */
1587
1588 /* Macros to convert an index into a given object within the original
1589 symbol table. */
1590 #define CHECK(num,max,str) \
1591 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1592
1593 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1594 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1595 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1596 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1597 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1598 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1599 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1600 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1601 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1602 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1603 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1604
1605 /* Various other statics. */
1606 static HDRR symbolic_header; /* symbolic header */
1607 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1608 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1609 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1610 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1611 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1612 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1613 static long file_offset = 0; /* current file offset */
1614 static long max_file_offset = 0; /* maximum file offset */
1615 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1616 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1617 static char *progname = (char *) 0; /* program name for errors */
1618 static char *input_name = "stdin"; /* name of input file */
1619 static char *object_name = (char *) 0; /* tmp. name of object file */
1620 static char *obj_in_name = (char *) 0; /* name of input object file */
1621 static char *cur_line_start = (char *) 0; /* current line read in */
1622 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1623 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1624 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1625 static long line_number = 0; /* current input line number */
1626 static int debug = 0; /* trace functions */
1627 static int version = 0; /* print version # */
1628 static int had_errors = 0; /* != 0 if errors were found */
1629 static int rename_output = 0; /* != 0 if rename output file*/
1630 static int delete_input = 0; /* != 0 if delete input after done */
1631 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1632
1633
1634 /* Pseudo symbol to use when putting stabs into the symbol table. */
1635 #ifndef STABS_SYMBOL
1636 #define STABS_SYMBOL "@stabs"
1637 #endif
1638
1639 static char stabs_symbol[] = STABS_SYMBOL;
1640
1641 \f
1642 /* Forward reference for functions. See the definition for more details. */
1643
1644 #ifndef STATIC
1645 #define STATIC static
1646 #endif
1647
1648 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1649
1650 STATIC shash_t *hash_string __proto((const char *,
1651 Ptrdiff_t,
1652 shash_t **,
1653 symint_t *));
1654
1655 STATIC symint_t add_string __proto((varray_t *,
1656 shash_t **,
1657 const char *,
1658 const char *,
1659 shash_t **));
1660
1661 STATIC symint_t add_local_symbol
1662 __proto((const char *,
1663 const char *,
1664 st_t,
1665 sc_t,
1666 symint_t,
1667 symint_t));
1668
1669 STATIC symint_t add_ext_symbol __proto((const char *,
1670 const char *,
1671 st_t,
1672 sc_t,
1673 long,
1674 symint_t,
1675 int));
1676
1677 STATIC symint_t add_aux_sym_symint
1678 __proto((symint_t));
1679
1680 STATIC symint_t add_aux_sym_rndx
1681 __proto((int, symint_t));
1682
1683 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1684 hash_state_t,
1685 thash_t **));
1686
1687 STATIC tag_t * get_tag __proto((const char *,
1688 const char *,
1689 symint_t,
1690 bt_t));
1691
1692 STATIC void add_unknown_tag __proto((tag_t *));
1693
1694 STATIC void add_procedure __proto((const char *,
1695 const char *));
1696
1697 STATIC void add_file __proto((const char *,
1698 const char *));
1699
1700 STATIC void add_bytes __proto((varray_t *,
1701 char *,
1702 Size_t));
1703
1704 STATIC void add_varray_page __proto((varray_t *));
1705
1706 STATIC void update_headers __proto((void));
1707
1708 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1709 STATIC void write_object __proto((void));
1710 STATIC char *st_to_string __proto((st_t));
1711 STATIC char *sc_to_string __proto((sc_t));
1712 STATIC char *read_line __proto((void));
1713 STATIC void parse_input __proto((void));
1714 STATIC void mark_stabs __proto((const char *));
1715 STATIC void parse_begin __proto((const char *));
1716 STATIC void parse_bend __proto((const char *));
1717 STATIC void parse_def __proto((const char *));
1718 STATIC void parse_end __proto((const char *));
1719 STATIC void parse_ent __proto((const char *));
1720 STATIC void parse_file __proto((const char *));
1721 STATIC void parse_stabs_common
1722 __proto((const char *, const char *, const char *));
1723 STATIC void parse_stabs __proto((const char *));
1724 STATIC void parse_stabn __proto((const char *));
1725 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1726 STATIC void copy_object __proto((void));
1727
1728 STATIC void catch_signal __proto((int));
1729 STATIC page_t *allocate_page __proto((void));
1730
1731 STATIC page_t *allocate_multiple_pages
1732 __proto((Size_t));
1733
1734 STATIC void free_multiple_pages
1735 __proto((page_t *, Size_t));
1736
1737 #ifndef MALLOC_CHECK
1738 STATIC page_t *allocate_cluster
1739 __proto((Size_t));
1740 #endif
1741
1742 STATIC forward_t *allocate_forward __proto((void));
1743 STATIC scope_t *allocate_scope __proto((void));
1744 STATIC shash_t *allocate_shash __proto((void));
1745 STATIC tag_t *allocate_tag __proto((void));
1746 STATIC thash_t *allocate_thash __proto((void));
1747 STATIC thead_t *allocate_thead __proto((void));
1748 STATIC vlinks_t *allocate_vlinks __proto((void));
1749
1750 STATIC void free_forward __proto((forward_t *));
1751 STATIC void free_scope __proto((scope_t *));
1752 STATIC void free_tag __proto((tag_t *));
1753 STATIC void free_thead __proto((thead_t *));
1754
1755 STATIC char *local_index __proto((const char *, int));
1756 STATIC char *local_rindex __proto((const char *, int));
1757
1758 #ifdef NEED_DECLARATION_SBRK
1759 extern char *sbrk __proto((int));
1760 #endif
1761 #ifdef NEED_DECLARATION_FREE
1762 extern void free __proto((PTR_T));
1763 #endif
1764
1765 extern char *mktemp __proto((char *));
1766 extern long strtol __proto((const char *, char **, int));
1767
1768 extern char *optarg;
1769 extern int optind;
1770 extern int opterr;
1771 extern char *version_string;
1772 #ifndef NO_SYS_SIGLIST
1773 #ifndef SYS_SIGLIST_DECLARED
1774 extern char *sys_siglist[NSIG + 1];
1775 #endif
1776 #endif
1777
1778 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1779 #define SEEK_SET 0 /* Set file pointer to offset */
1780 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1781 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1782 #endif
1783
1784 \f
1785 /* List of assembler pseudo ops and beginning sequences that need
1786 special actions. Someday, this should be a hash table, and such,
1787 but for now a linear list of names and calls to memcmp will
1788 do...... */
1789
1790 typedef struct _pseudo_ops {
1791 const char *name; /* pseudo-op in ascii */
1792 int len; /* length of name to compare */
1793 void (*func) __proto((const char *)); /* function to handle line */
1794 } pseudo_ops_t;
1795
1796 static pseudo_ops_t pseudo_ops[] = {
1797 { "#.def", sizeof("#.def")-1, parse_def },
1798 { "#.begin", sizeof("#.begin")-1, parse_begin },
1799 { "#.bend", sizeof("#.bend")-1, parse_bend },
1800 { ".end", sizeof(".end")-1, parse_end },
1801 { ".ent", sizeof(".ent")-1, parse_ent },
1802 { ".file", sizeof(".file")-1, parse_file },
1803 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1804 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1805 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1806 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1807 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1808 };
1809
1810 \f
1811 /* Add a page to a varray object. */
1812
1813 STATIC void
1814 add_varray_page (vp)
1815 varray_t *vp; /* varray to add page to */
1816 {
1817 vlinks_t *new_links = allocate_vlinks ();
1818
1819 #ifdef MALLOC_CHECK
1820 if (vp->object_size > 1)
1821 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1822 else
1823 #endif
1824 new_links->datum = allocate_page ();
1825
1826 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1827 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1828
1829 new_links->start_index = vp->num_allocated;
1830 vp->objects_last_page = 0;
1831
1832 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1833 vp->first = vp->last = new_links;
1834 else
1835 { /* 2nd or greater allocation */
1836 new_links->prev = vp->last;
1837 vp->last->next = new_links;
1838 vp->last = new_links;
1839 }
1840 }
1841
1842 \f
1843 /* Compute hash code (from tree.c) */
1844
1845 #define HASHBITS 30
1846
1847 STATIC shash_t *
1848 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1849 const char *text; /* ptr to text to hash */
1850 Ptrdiff_t hash_len; /* length of the text */
1851 shash_t **hash_tbl; /* hash table */
1852 symint_t *ret_hash_index; /* ptr to store hash index */
1853 {
1854 register unsigned long hi;
1855 register Ptrdiff_t i;
1856 register shash_t *ptr;
1857 register int first_ch = *text;
1858
1859 hi = hash_len;
1860 for (i = 0; i < hash_len; i++)
1861 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1862
1863 hi &= (1 << HASHBITS) - 1;
1864 hi %= SHASH_SIZE;
1865
1866 if (ret_hash_index != (symint_t *) 0)
1867 *ret_hash_index = hi;
1868
1869 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1870 if (hash_len == ptr->len
1871 && first_ch == ptr->string[0]
1872 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1873 break;
1874
1875 return ptr;
1876 }
1877
1878 \f
1879 /* Add a string (and null pad) to one of the string tables. A
1880 consequence of hashing strings, is that we don't let strings
1881 cross page boundaries. The extra nulls will be ignored. */
1882
1883 STATIC symint_t
1884 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1885 varray_t *vp; /* string virtual array */
1886 shash_t **hash_tbl; /* ptr to hash table */
1887 const char *start; /* 1st byte in string */
1888 const char *end_p1; /* 1st byte after string */
1889 shash_t **ret_hash; /* return hash pointer */
1890 {
1891 register Ptrdiff_t len = end_p1 - start;
1892 register shash_t *hash_ptr;
1893 symint_t hi;
1894
1895 if (len >= PAGE_USIZE)
1896 fatal ("String too big (%ld bytes)", (long) len);
1897
1898 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1899 if (hash_ptr == (shash_t *) 0)
1900 {
1901 register char *p;
1902
1903 if (vp->objects_last_page + len >= PAGE_USIZE)
1904 {
1905 vp->num_allocated
1906 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1907 add_varray_page (vp);
1908 }
1909
1910 hash_ptr = allocate_shash ();
1911 hash_ptr->next = hash_tbl[hi];
1912 hash_tbl[hi] = hash_ptr;
1913
1914 hash_ptr->len = len;
1915 hash_ptr->indx = vp->num_allocated;
1916 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1917
1918 vp->objects_last_page += len+1;
1919 vp->num_allocated += len+1;
1920
1921 while (len-- > 0)
1922 *p++ = *start++;
1923
1924 *p = '\0';
1925 }
1926
1927 if (ret_hash != (shash_t **) 0)
1928 *ret_hash = hash_ptr;
1929
1930 return hash_ptr->indx;
1931 }
1932
1933 \f
1934 /* Add a local symbol. */
1935
1936 STATIC symint_t
1937 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1938 const char *str_start; /* first byte in string */
1939 const char *str_end_p1; /* first byte after string */
1940 st_t type; /* symbol type */
1941 sc_t storage; /* storage class */
1942 symint_t value; /* value of symbol */
1943 symint_t indx; /* index to local/aux. syms */
1944 {
1945 register symint_t ret;
1946 register SYMR *psym;
1947 register scope_t *pscope;
1948 register thead_t *ptag_head;
1949 register tag_t *ptag;
1950 register tag_t *ptag_next;
1951 register varray_t *vp = &cur_file_ptr->symbols;
1952 register int scope_delta = 0;
1953 shash_t *hash_ptr = (shash_t *) 0;
1954
1955 if (vp->objects_last_page == vp->objects_per_page)
1956 add_varray_page (vp);
1957
1958 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1959
1960 psym->value = value;
1961 psym->st = (unsigned) type;
1962 psym->sc = (unsigned) storage;
1963 psym->index = indx;
1964 psym->iss = (str_start == (const char *) 0)
1965 ? 0
1966 : add_string (&cur_file_ptr->strings,
1967 &cur_file_ptr->shash_head[0],
1968 str_start,
1969 str_end_p1,
1970 &hash_ptr);
1971
1972 ret = vp->num_allocated++;
1973
1974 if (MIPS_IS_STAB(psym))
1975 return ret;
1976
1977 /* Save the symbol within the hash table if this is a static
1978 item, and it has a name. */
1979 if (hash_ptr != (shash_t *) 0
1980 && (type == st_Global || type == st_Static || type == st_Label
1981 || type == st_Proc || type == st_StaticProc))
1982 hash_ptr->sym_ptr = psym;
1983
1984 /* push or pop a scope if appropriate. */
1985 switch (type)
1986 {
1987 default:
1988 break;
1989
1990 case st_File: /* beginning of file */
1991 case st_Proc: /* procedure */
1992 case st_StaticProc: /* static procedure */
1993 case st_Block: /* begin scope */
1994 pscope = allocate_scope ();
1995 pscope->prev = cur_file_ptr->cur_scope;
1996 pscope->lsym = psym;
1997 pscope->lnumber = ret;
1998 pscope->type = type;
1999 cur_file_ptr->cur_scope = pscope;
2000
2001 if (type != st_File)
2002 scope_delta = 1;
2003
2004 /* For every block type except file, struct, union, or
2005 enumeration blocks, push a level on the tag stack. We omit
2006 file types, so that tags can span file boundaries. */
2007 if (type != st_File && storage != sc_Info)
2008 {
2009 ptag_head = allocate_thead ();
2010 ptag_head->first_tag = 0;
2011 ptag_head->prev = cur_tag_head;
2012 cur_tag_head = ptag_head;
2013 }
2014 break;
2015
2016 case st_End:
2017 pscope = cur_file_ptr->cur_scope;
2018 if (pscope == (scope_t *)0)
2019 error ("internal error, too many st_End's");
2020
2021 else
2022 {
2023 st_t begin_type = (st_t) pscope->lsym->st;
2024
2025 if (begin_type != st_File)
2026 scope_delta = -1;
2027
2028 /* Except for file, structure, union, or enumeration end
2029 blocks remove all tags created within this scope. */
2030 if (begin_type != st_File && storage != sc_Info)
2031 {
2032 ptag_head = cur_tag_head;
2033 cur_tag_head = ptag_head->prev;
2034
2035 for (ptag = ptag_head->first_tag;
2036 ptag != (tag_t *) 0;
2037 ptag = ptag_next)
2038 {
2039 if (ptag->forward_ref != (forward_t *) 0)
2040 add_unknown_tag (ptag);
2041
2042 ptag_next = ptag->same_block;
2043 ptag->hash_ptr->tag_ptr = ptag->same_name;
2044 free_tag (ptag);
2045 }
2046
2047 free_thead (ptag_head);
2048 }
2049
2050 cur_file_ptr->cur_scope = pscope->prev;
2051 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2052
2053 if (storage != sc_Info)
2054 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2055
2056 if (begin_type == st_File || begin_type == st_Block)
2057 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2058
2059 /* Functions push two or more aux words as follows:
2060 1st word: index+1 of the end symbol
2061 2nd word: type of the function (plus any aux words needed).
2062 Also, tie the external pointer back to the function begin symbol. */
2063 else
2064 {
2065 symint_t type;
2066 pscope->lsym->index = add_aux_sym_symint (ret+1);
2067 type = add_aux_sym_tir (&last_func_type_info,
2068 hash_no,
2069 &cur_file_ptr->thash_head[0]);
2070 if (last_func_eptr)
2071 {
2072 last_func_eptr->ifd = cur_file_ptr->file_index;
2073
2074 /* The index for an external st_Proc symbol is the index
2075 of the st_Proc symbol in the local symbol table. */
2076 last_func_eptr->asym.index = psym->index;
2077 }
2078 }
2079
2080 free_scope (pscope);
2081 }
2082 }
2083
2084 cur_file_ptr->nested_scopes += scope_delta;
2085
2086 if (debug && type != st_File
2087 && (debug > 2 || type == st_Block || type == st_End
2088 || type == st_Proc || type == st_StaticProc))
2089 {
2090 char *sc_str = sc_to_string (storage);
2091 char *st_str = st_to_string (type);
2092 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2093
2094 fprintf (stderr,
2095 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2096 value, depth, sc_str);
2097
2098 if (str_start && str_end_p1 - str_start > 0)
2099 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2100 else
2101 {
2102 Size_t len = strlen (st_str);
2103 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2104 }
2105 }
2106
2107 return ret;
2108 }
2109
2110 \f
2111 /* Add an external symbol. */
2112
2113 STATIC symint_t
2114 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2115 const char *str_start; /* first byte in string */
2116 const char *str_end_p1; /* first byte after string */
2117 st_t type; /* symbol type */
2118 sc_t storage; /* storage class */
2119 long value; /* value of symbol */
2120 symint_t indx; /* index to local/aux. syms */
2121 int ifd; /* file index */
2122 {
2123 register EXTR *psym;
2124 register varray_t *vp = &ext_symbols;
2125 shash_t *hash_ptr = (shash_t *) 0;
2126
2127 if (debug > 1)
2128 {
2129 char *sc_str = sc_to_string (storage);
2130 char *st_str = st_to_string (type);
2131
2132 fprintf (stderr,
2133 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2134 value, ifd, sc_str);
2135
2136 if (str_start && str_end_p1 - str_start > 0)
2137 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2138 else
2139 fprintf (stderr, " st= %s\n", st_str);
2140 }
2141
2142 if (vp->objects_last_page == vp->objects_per_page)
2143 add_varray_page (vp);
2144
2145 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2146
2147 psym->ifd = ifd;
2148 psym->asym.value = value;
2149 psym->asym.st = (unsigned) type;
2150 psym->asym.sc = (unsigned) storage;
2151 psym->asym.index = indx;
2152 psym->asym.iss = (str_start == (const char *) 0)
2153 ? 0
2154 : add_string (&ext_strings,
2155 &ext_str_hash[0],
2156 str_start,
2157 str_end_p1,
2158 &hash_ptr);
2159
2160 hash_ptr->esym_ptr = psym;
2161 return vp->num_allocated++;
2162 }
2163
2164 \f
2165 /* Add an auxiliary symbol (passing a symint). */
2166
2167 STATIC symint_t
2168 add_aux_sym_symint (aux_word)
2169 symint_t aux_word; /* auxiliary information word */
2170 {
2171 register AUXU *aux_ptr;
2172 register efdr_t *file_ptr = cur_file_ptr;
2173 register varray_t *vp = &file_ptr->aux_syms;
2174
2175 if (vp->objects_last_page == vp->objects_per_page)
2176 add_varray_page (vp);
2177
2178 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2179 aux_ptr->isym = aux_word;
2180
2181 return vp->num_allocated++;
2182 }
2183
2184
2185 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2186
2187 STATIC symint_t
2188 add_aux_sym_rndx (file_index, sym_index)
2189 int file_index;
2190 symint_t sym_index;
2191 {
2192 register AUXU *aux_ptr;
2193 register efdr_t *file_ptr = cur_file_ptr;
2194 register varray_t *vp = &file_ptr->aux_syms;
2195
2196 if (vp->objects_last_page == vp->objects_per_page)
2197 add_varray_page (vp);
2198
2199 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2200 aux_ptr->rndx.rfd = file_index;
2201 aux_ptr->rndx.index = sym_index;
2202
2203 return vp->num_allocated++;
2204 }
2205
2206 \f
2207 /* Add an auxiliary symbol (passing the basic type and possibly
2208 type qualifiers). */
2209
2210 STATIC symint_t
2211 add_aux_sym_tir (t, state, hash_tbl)
2212 type_info_t *t; /* current type information */
2213 hash_state_t state; /* whether to hash type or not */
2214 thash_t **hash_tbl; /* pointer to hash table to use */
2215 {
2216 register AUXU *aux_ptr;
2217 register efdr_t *file_ptr = cur_file_ptr;
2218 register varray_t *vp = &file_ptr->aux_syms;
2219 static AUXU init_aux;
2220 symint_t ret;
2221 int i;
2222 AUXU aux;
2223
2224 aux = init_aux;
2225 aux.ti.bt = (int) t->basic_type;
2226 aux.ti.continued = 0;
2227 aux.ti.fBitfield = t->bitfield;
2228
2229 aux.ti.tq0 = (int) t->type_qualifiers[0];
2230 aux.ti.tq1 = (int) t->type_qualifiers[1];
2231 aux.ti.tq2 = (int) t->type_qualifiers[2];
2232 aux.ti.tq3 = (int) t->type_qualifiers[3];
2233 aux.ti.tq4 = (int) t->type_qualifiers[4];
2234 aux.ti.tq5 = (int) t->type_qualifiers[5];
2235
2236
2237 /* For anything that adds additional information, we must not hash,
2238 so check here, and reset our state. */
2239
2240 if (state != hash_no
2241 && (t->type_qualifiers[0] == tq_Array
2242 || t->type_qualifiers[1] == tq_Array
2243 || t->type_qualifiers[2] == tq_Array
2244 || t->type_qualifiers[3] == tq_Array
2245 || t->type_qualifiers[4] == tq_Array
2246 || t->type_qualifiers[5] == tq_Array
2247 || t->basic_type == bt_Struct
2248 || t->basic_type == bt_Union
2249 || t->basic_type == bt_Enum
2250 || t->bitfield
2251 || t->num_dims > 0))
2252 state = hash_no;
2253
2254 /* See if we can hash this type, and save some space, but some types
2255 can't be hashed (because they contain arrays or continuations),
2256 and others can be put into the hash list, but cannot use existing
2257 types because other aux entries precede this one. */
2258
2259 if (state != hash_no)
2260 {
2261 register thash_t *hash_ptr;
2262 register symint_t hi;
2263
2264 hi = aux.isym & ((1 << HASHBITS) - 1);
2265 hi %= THASH_SIZE;
2266
2267 for (hash_ptr = hash_tbl[hi];
2268 hash_ptr != (thash_t *) 0;
2269 hash_ptr = hash_ptr->next)
2270 {
2271 if (aux.isym == hash_ptr->type.isym)
2272 break;
2273 }
2274
2275 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2276 return hash_ptr->indx;
2277
2278 if (hash_ptr == (thash_t *) 0)
2279 {
2280 hash_ptr = allocate_thash ();
2281 hash_ptr->next = hash_tbl[hi];
2282 hash_ptr->type = aux;
2283 hash_ptr->indx = vp->num_allocated;
2284 hash_tbl[hi] = hash_ptr;
2285 }
2286 }
2287
2288 /* Everything is set up, add the aux symbol. */
2289 if (vp->objects_last_page == vp->objects_per_page)
2290 add_varray_page (vp);
2291
2292 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2293 *aux_ptr = aux;
2294
2295 ret = vp->num_allocated++;
2296
2297 /* Add bitfield length if it exists.
2298
2299 NOTE: Mips documentation claims bitfield goes at the end of the
2300 AUX record, but the DECstation compiler emits it here.
2301 (This would only make a difference for enum bitfields.)
2302
2303 Also note: We use the last size given since gcc may emit 2
2304 for an enum bitfield. */
2305
2306 if (t->bitfield)
2307 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2308
2309
2310 /* Add tag information if needed. Structure, union, and enum
2311 references add 2 aux symbols: a [file index, symbol index]
2312 pointer to the structure type, and the current file index. */
2313
2314 if (t->basic_type == bt_Struct
2315 || t->basic_type == bt_Union
2316 || t->basic_type == bt_Enum)
2317 {
2318 register symint_t file_index = t->tag_ptr->ifd;
2319 register symint_t sym_index = t->tag_ptr->indx;
2320
2321 if (t->unknown_tag)
2322 {
2323 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2324 (void) add_aux_sym_symint ((symint_t)-1);
2325 }
2326 else if (sym_index != indexNil)
2327 {
2328 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2329 (void) add_aux_sym_symint (file_index);
2330 }
2331 else
2332 {
2333 register forward_t *forward_ref = allocate_forward ();
2334
2335 forward_ref->type_ptr = aux_ptr;
2336 forward_ref->next = t->tag_ptr->forward_ref;
2337 t->tag_ptr->forward_ref = forward_ref;
2338
2339 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2340 forward_ref->index_ptr
2341 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2342
2343 (void) add_aux_sym_symint (file_index);
2344 forward_ref->ifd_ptr
2345 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2346 }
2347 }
2348
2349 /* Add information about array bounds if they exist. */
2350 for (i = 0; i < t->num_dims; i++)
2351 {
2352 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2353 cur_file_ptr->int_type);
2354
2355 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2356 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2357 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2358 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2359 ? 0
2360 : (t->sizes[i] * 8) / t->dimensions[i]);
2361 };
2362
2363 /* NOTE: Mips documentation claims that the bitfield width goes here.
2364 But it needs to be emitted earlier. */
2365
2366 return ret;
2367 }
2368
2369 \f
2370 /* Add a tag to the tag table (unless it already exists). */
2371
2372 STATIC tag_t *
2373 get_tag (tag_start, tag_end_p1, indx, basic_type)
2374 const char *tag_start; /* 1st byte of tag name */
2375 const char *tag_end_p1; /* 1st byte after tag name */
2376 symint_t indx; /* index of tag start block */
2377 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2378 {
2379 shash_t *hash_ptr;
2380 tag_t *tag_ptr;
2381 hash_ptr = hash_string (tag_start,
2382 tag_end_p1 - tag_start,
2383 &tag_hash[0],
2384 (symint_t *) 0);
2385
2386 if (hash_ptr != (shash_t *) 0
2387 && hash_ptr->tag_ptr != (tag_t *) 0)
2388 {
2389 tag_ptr = hash_ptr->tag_ptr;
2390 if (indx != indexNil)
2391 {
2392 tag_ptr->basic_type = basic_type;
2393 tag_ptr->ifd = cur_file_ptr->file_index;
2394 tag_ptr->indx = indx;
2395 }
2396 return tag_ptr;
2397 }
2398
2399 (void) add_string (&tag_strings,
2400 &tag_hash[0],
2401 tag_start,
2402 tag_end_p1,
2403 &hash_ptr);
2404
2405 tag_ptr = allocate_tag ();
2406 tag_ptr->forward_ref = (forward_t *) 0;
2407 tag_ptr->hash_ptr = hash_ptr;
2408 tag_ptr->same_name = hash_ptr->tag_ptr;
2409 tag_ptr->basic_type = basic_type;
2410 tag_ptr->indx = indx;
2411 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2412 tag_ptr->same_block = cur_tag_head->first_tag;
2413
2414 cur_tag_head->first_tag = tag_ptr;
2415 hash_ptr->tag_ptr = tag_ptr;
2416
2417 return tag_ptr;
2418 }
2419
2420 \f
2421 /* Add an unknown {struct, union, enum} tag. */
2422
2423 STATIC void
2424 add_unknown_tag (ptag)
2425 tag_t *ptag; /* pointer to tag information */
2426 {
2427 shash_t *hash_ptr = ptag->hash_ptr;
2428 char *name_start = hash_ptr->string;
2429 char *name_end_p1 = name_start + hash_ptr->len;
2430 forward_t *f_next = ptag->forward_ref;
2431 forward_t *f_cur;
2432 int sym_index;
2433 int file_index = cur_file_ptr->file_index;
2434
2435 if (debug > 1)
2436 {
2437 char *agg_type = "{unknown aggregate type}";
2438 switch (ptag->basic_type)
2439 {
2440 case bt_Struct: agg_type = "struct"; break;
2441 case bt_Union: agg_type = "union"; break;
2442 case bt_Enum: agg_type = "enum"; break;
2443 default: break;
2444 }
2445
2446 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2447 hash_ptr->len, name_start);
2448 }
2449
2450 sym_index = add_local_symbol (name_start,
2451 name_end_p1,
2452 st_Block,
2453 sc_Info,
2454 (symint_t) 0,
2455 (symint_t) 0);
2456
2457 (void) add_local_symbol (name_start,
2458 name_end_p1,
2459 st_End,
2460 sc_Info,
2461 (symint_t) 0,
2462 (symint_t) 0);
2463
2464 while (f_next != (forward_t *) 0)
2465 {
2466 f_cur = f_next;
2467 f_next = f_next->next;
2468
2469 f_cur->ifd_ptr->isym = file_index;
2470 f_cur->index_ptr->rndx.index = sym_index;
2471
2472 free_forward (f_cur);
2473 }
2474
2475 return;
2476 }
2477
2478 \f
2479 /* Add a procedure to the current file's list of procedures, and record
2480 this is the current procedure. If the assembler created a PDR for
2481 this procedure, use that to initialize the current PDR. */
2482
2483 STATIC void
2484 add_procedure (func_start, func_end_p1)
2485 const char *func_start; /* 1st byte of func name */
2486 const char *func_end_p1; /* 1st byte after func name */
2487 {
2488 register PDR *new_proc_ptr;
2489 register efdr_t *file_ptr = cur_file_ptr;
2490 register varray_t *vp = &file_ptr->procs;
2491 register symint_t value = 0;
2492 register st_t proc_type = st_Proc;
2493 register shash_t *shash_ptr = hash_string (func_start,
2494 func_end_p1 - func_start,
2495 &orig_str_hash[0],
2496 (symint_t *) 0);
2497
2498 if (debug)
2499 fputc ('\n', stderr);
2500
2501 if (vp->objects_last_page == vp->objects_per_page)
2502 add_varray_page (vp);
2503
2504 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2505
2506 vp->num_allocated++;
2507
2508
2509 /* Did the assembler create this procedure? If so, get the PDR information. */
2510 cur_oproc_ptr = (PDR *) 0;
2511 if (shash_ptr != (shash_t *) 0)
2512 {
2513 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2514 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2515
2516 if (old_proc_ptr != (PDR *) 0
2517 && sym_ptr != (SYMR *) 0
2518 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2519 {
2520 cur_oproc_begin = sym_ptr;
2521 cur_oproc_end = shash_ptr->end_ptr;
2522 value = sym_ptr->value;
2523
2524 cur_oproc_ptr = old_proc_ptr;
2525 proc_type = (st_t)sym_ptr->st;
2526 *new_proc_ptr = *old_proc_ptr; /* initialize */
2527 }
2528 }
2529
2530 if (cur_oproc_ptr == (PDR *) 0)
2531 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2532
2533 /* Determine the start of symbols. */
2534 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2535
2536 /* Push the start of the function. */
2537 (void) add_local_symbol (func_start, func_end_p1,
2538 proc_type, sc_Text,
2539 value,
2540 (symint_t) 0);
2541 }
2542
2543 \f
2544 /* Add a new filename, and set up all of the file relative
2545 virtual arrays (strings, symbols, aux syms, etc.). Record
2546 where the current file structure lives. */
2547
2548 STATIC void
2549 add_file (file_start, file_end_p1)
2550 const char *file_start; /* first byte in string */
2551 const char *file_end_p1; /* first byte after string */
2552 {
2553 static char zero_bytes[2] = { '\0', '\0' };
2554
2555 register Ptrdiff_t len = file_end_p1 - file_start;
2556 register int first_ch = *file_start;
2557 register efdr_t *file_ptr;
2558
2559 if (debug)
2560 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2561
2562 /* See if the file has already been created. */
2563 for (file_ptr = first_file;
2564 file_ptr != (efdr_t *) 0;
2565 file_ptr = file_ptr->next_file)
2566 {
2567 if (first_ch == file_ptr->name[0]
2568 && file_ptr->name[len] == '\0'
2569 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2570 {
2571 cur_file_ptr = file_ptr;
2572 break;
2573 }
2574 }
2575
2576 /* If this is a new file, create it. */
2577 if (file_ptr == (efdr_t *) 0)
2578 {
2579 if (file_desc.objects_last_page == file_desc.objects_per_page)
2580 add_varray_page (&file_desc);
2581
2582 file_ptr = cur_file_ptr
2583 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2584 *file_ptr = init_file;
2585
2586 file_ptr->file_index = file_desc.num_allocated++;
2587
2588 /* Allocate the string hash table. */
2589 file_ptr->shash_head = (shash_t **) allocate_page ();
2590
2591 /* Make sure 0 byte in string table is null */
2592 add_string (&file_ptr->strings,
2593 &file_ptr->shash_head[0],
2594 &zero_bytes[0],
2595 &zero_bytes[0],
2596 (shash_t **) 0);
2597
2598 if (file_end_p1 - file_start > PAGE_USIZE-2)
2599 fatal ("Filename goes over one page boundary.");
2600
2601 /* Push the start of the filename. We assume that the filename
2602 will be stored at string offset 1. */
2603 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2604 (symint_t) 0, (symint_t) 0);
2605 file_ptr->fdr.rss = 1;
2606 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2607 file_ptr->name_len = file_end_p1 - file_start;
2608
2609 /* Update the linked list of file descriptors. */
2610 *last_file_ptr = file_ptr;
2611 last_file_ptr = &file_ptr->next_file;
2612
2613 /* Add void & int types to the file (void should be first to catch
2614 errant 0's within the index fields). */
2615 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2616 hash_yes,
2617 &cur_file_ptr->thash_head[0]);
2618
2619 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2620 hash_yes,
2621 &cur_file_ptr->thash_head[0]);
2622 }
2623 }
2624
2625 \f
2626 /* Add a stream of random bytes to a varray. */
2627
2628 STATIC void
2629 add_bytes (vp, input_ptr, nitems)
2630 varray_t *vp; /* virtual array to add too */
2631 char *input_ptr; /* start of the bytes */
2632 Size_t nitems; /* # items to move */
2633 {
2634 register Size_t move_items;
2635 register Size_t move_bytes;
2636 register char *ptr;
2637
2638 while (nitems > 0)
2639 {
2640 if (vp->objects_last_page >= vp->objects_per_page)
2641 add_varray_page (vp);
2642
2643 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2644 move_items = vp->objects_per_page - vp->objects_last_page;
2645 if (move_items > nitems)
2646 move_items = nitems;
2647
2648 move_bytes = move_items * vp->object_size;
2649 nitems -= move_items;
2650
2651 if (move_bytes >= 32)
2652 {
2653 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2654 input_ptr += move_bytes;
2655 }
2656 else
2657 {
2658 while (move_bytes-- > 0)
2659 *ptr++ = *input_ptr++;
2660 }
2661 }
2662 }
2663
2664 \f
2665 /* Convert storage class to string. */
2666
2667 STATIC char *
2668 sc_to_string(storage_class)
2669 sc_t storage_class;
2670 {
2671 switch(storage_class)
2672 {
2673 case sc_Nil: return "Nil,";
2674 case sc_Text: return "Text,";
2675 case sc_Data: return "Data,";
2676 case sc_Bss: return "Bss,";
2677 case sc_Register: return "Register,";
2678 case sc_Abs: return "Abs,";
2679 case sc_Undefined: return "Undefined,";
2680 case sc_CdbLocal: return "CdbLocal,";
2681 case sc_Bits: return "Bits,";
2682 case sc_CdbSystem: return "CdbSystem,";
2683 case sc_RegImage: return "RegImage,";
2684 case sc_Info: return "Info,";
2685 case sc_UserStruct: return "UserStruct,";
2686 case sc_SData: return "SData,";
2687 case sc_SBss: return "SBss,";
2688 case sc_RData: return "RData,";
2689 case sc_Var: return "Var,";
2690 case sc_Common: return "Common,";
2691 case sc_SCommon: return "SCommon,";
2692 case sc_VarRegister: return "VarRegister,";
2693 case sc_Variant: return "Variant,";
2694 case sc_SUndefined: return "SUndefined,";
2695 case sc_Init: return "Init,";
2696 case sc_Max: return "Max,";
2697 }
2698
2699 return "???,";
2700 }
2701
2702 \f
2703 /* Convert symbol type to string. */
2704
2705 STATIC char *
2706 st_to_string(symbol_type)
2707 st_t symbol_type;
2708 {
2709 switch(symbol_type)
2710 {
2711 case st_Nil: return "Nil,";
2712 case st_Global: return "Global,";
2713 case st_Static: return "Static,";
2714 case st_Param: return "Param,";
2715 case st_Local: return "Local,";
2716 case st_Label: return "Label,";
2717 case st_Proc: return "Proc,";
2718 case st_Block: return "Block,";
2719 case st_End: return "End,";
2720 case st_Member: return "Member,";
2721 case st_Typedef: return "Typedef,";
2722 case st_File: return "File,";
2723 case st_RegReloc: return "RegReloc,";
2724 case st_Forward: return "Forward,";
2725 case st_StaticProc: return "StaticProc,";
2726 case st_Constant: return "Constant,";
2727 case st_Str: return "String,";
2728 case st_Number: return "Number,";
2729 case st_Expr: return "Expr,";
2730 case st_Type: return "Type,";
2731 case st_Max: return "Max,";
2732 }
2733
2734 return "???,";
2735 }
2736
2737 \f
2738 /* Read a line from standard input, and return the start of the buffer
2739 (which is grows if the line is too big). We split lines at the
2740 semi-colon, and return each logical line independently. */
2741
2742 STATIC char *
2743 read_line __proto((void))
2744 {
2745 static int line_split_p = 0;
2746 register int string_p = 0;
2747 register int comment_p = 0;
2748 register int ch;
2749 register char *ptr;
2750
2751 if (cur_line_start == (char *) 0)
2752 { /* allocate initial page */
2753 cur_line_start = (char *) allocate_page ();
2754 cur_line_alloc = PAGE_SIZE;
2755 }
2756
2757 if (!line_split_p)
2758 line_number++;
2759
2760 line_split_p = 0;
2761 cur_line_nbytes = 0;
2762
2763 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2764 {
2765 if (++cur_line_nbytes >= cur_line_alloc-1)
2766 {
2767 register int num_pages = cur_line_alloc / PAGE_SIZE;
2768 register char *old_buffer = cur_line_start;
2769
2770 cur_line_alloc += PAGE_SIZE;
2771 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2772 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2773
2774 ptr = cur_line_start + cur_line_nbytes - 1;
2775 }
2776
2777 if (ch == '\n')
2778 {
2779 *ptr++ = '\n';
2780 *ptr = '\0';
2781 cur_line_ptr = cur_line_start;
2782 return cur_line_ptr;
2783 }
2784
2785 else if (ch == '\0')
2786 error ("Null character found in input");
2787
2788 else if (!comment_p)
2789 {
2790 if (ch == '"')
2791 string_p = !string_p;
2792
2793 else if (ch == '#')
2794 comment_p++;
2795
2796 else if (ch == ';' && !string_p)
2797 {
2798 line_split_p = 1;
2799 *ptr++ = '\n';
2800 *ptr = '\0';
2801 cur_line_ptr = cur_line_start;
2802 return cur_line_ptr;
2803 }
2804 }
2805 }
2806
2807 if (ferror (stdin))
2808 pfatal_with_name (input_name);
2809
2810 cur_line_ptr = (char *) 0;
2811 return (char *) 0;
2812 }
2813
2814 \f
2815 /* Parse #.begin directives which have a label as the first argument
2816 which gives the location of the start of the block. */
2817
2818 STATIC void
2819 parse_begin (start)
2820 const char *start; /* start of directive */
2821 {
2822 const char *end_p1; /* end of label */
2823 int ch;
2824 shash_t *hash_ptr; /* hash pointer to lookup label */
2825
2826 if (cur_file_ptr == (efdr_t *) 0)
2827 {
2828 error ("#.begin directive without a preceding .file directive");
2829 return;
2830 }
2831
2832 if (cur_proc_ptr == (PDR *) 0)
2833 {
2834 error ("#.begin directive without a preceding .ent directive");
2835 return;
2836 }
2837
2838 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2839 ;
2840
2841 hash_ptr = hash_string (start,
2842 end_p1 - start,
2843 &orig_str_hash[0],
2844 (symint_t *) 0);
2845
2846 if (hash_ptr == (shash_t *) 0)
2847 {
2848 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2849 return;
2850 }
2851
2852 if (cur_oproc_begin == (SYMR *) 0)
2853 {
2854 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2855 return;
2856 }
2857
2858 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2859 st_Block, sc_Text,
2860 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2861 (symint_t) 0);
2862 }
2863
2864 \f
2865 /* Parse #.bend directives which have a label as the first argument
2866 which gives the location of the end of the block. */
2867
2868 STATIC void
2869 parse_bend (start)
2870 const char *start; /* start of directive */
2871 {
2872 const char *end_p1; /* end of label */
2873 int ch;
2874 shash_t *hash_ptr; /* hash pointer to lookup label */
2875
2876 if (cur_file_ptr == (efdr_t *) 0)
2877 {
2878 error ("#.begin directive without a preceding .file directive");
2879 return;
2880 }
2881
2882 if (cur_proc_ptr == (PDR *) 0)
2883 {
2884 error ("#.bend directive without a preceding .ent directive");
2885 return;
2886 }
2887
2888 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2889 ;
2890
2891 hash_ptr = hash_string (start,
2892 end_p1 - start,
2893 &orig_str_hash[0],
2894 (symint_t *) 0);
2895
2896 if (hash_ptr == (shash_t *) 0)
2897 {
2898 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2899 return;
2900 }
2901
2902 if (cur_oproc_begin == (SYMR *) 0)
2903 {
2904 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2905 return;
2906 }
2907
2908 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2909 st_End, sc_Text,
2910 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2911 (symint_t) 0);
2912 }
2913
2914 \f
2915 /* Parse #.def directives, which are contain standard COFF subdirectives
2916 to describe the debugging format. These subdirectives include:
2917
2918 .scl specify storage class
2919 .val specify a value
2920 .endef specify end of COFF directives
2921 .type specify the type
2922 .size specify the size of an array
2923 .dim specify an array dimension
2924 .tag specify a tag for a struct, union, or enum. */
2925
2926 STATIC void
2927 parse_def (name_start)
2928 const char *name_start; /* start of directive */
2929 {
2930 const char *dir_start; /* start of current directive*/
2931 const char *dir_end_p1; /* end+1 of current directive*/
2932 const char *arg_start; /* start of current argument */
2933 const char *arg_end_p1; /* end+1 of current argument */
2934 const char *name_end_p1; /* end+1 of label */
2935 const char *tag_start = (const char *) 0; /* start of tag name */
2936 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2937 sc_t storage_class = sc_Nil;
2938 st_t symbol_type = st_Nil;
2939 type_info_t t;
2940 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2941 int is_function = 0; /* != 0 if function */
2942 symint_t value = 0;
2943 symint_t indx = cur_file_ptr->void_type;
2944 int error_line = 0;
2945 symint_t arg_number;
2946 symint_t temp_array[ N_TQ ];
2947 int arg_was_number;
2948 int ch, i;
2949 Ptrdiff_t len;
2950
2951 static int inside_enumeration = 0; /* is this an enumeration? */
2952
2953
2954 /* Initialize the type information. */
2955 t = type_info_init;
2956
2957
2958 /* Search for the end of the name being defined. */
2959 /* Allow spaces and such in names for G++ templates, which produce stabs
2960 that look like:
2961
2962 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2963
2964 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2965 ;
2966
2967 if (ch == '\0')
2968 {
2969 error_line = __LINE__;
2970 saber_stop ();
2971 goto bomb_out;
2972 }
2973
2974 /* Parse the remaining subdirectives now. */
2975 dir_start = name_end_p1+1;
2976 for (;;)
2977 {
2978 while ((ch = *dir_start) == ' ' || ch == '\t')
2979 ++dir_start;
2980
2981 if (ch != '.')
2982 {
2983 error_line = __LINE__;
2984 saber_stop ();
2985 goto bomb_out;
2986 }
2987
2988 /* Are we done? */
2989 if (dir_start[1] == 'e'
2990 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2991 break;
2992
2993 /* Pick up the subdirective now */
2994 for (dir_end_p1 = dir_start+1;
2995 (ch = *dir_end_p1) != ' ' && ch != '\t';
2996 dir_end_p1++)
2997 {
2998 if (ch == '\0' || isspace (ch))
2999 {
3000 error_line = __LINE__;
3001 saber_stop ();
3002 goto bomb_out;
3003 }
3004 }
3005
3006 /* Pick up the subdirective argument now. */
3007 arg_was_number = arg_number = 0;
3008 arg_end_p1 = (const char *) 0;
3009 arg_start = dir_end_p1+1;
3010 ch = *arg_start;
3011 while (ch == ' ' || ch == '\t')
3012 ch = *++arg_start;
3013
3014 if (isdigit (ch) || ch == '-' || ch == '+')
3015 {
3016 int ch2;
3017 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3018 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3019 arg_was_number++;
3020 }
3021
3022 else if (ch == '\0' || isspace (ch))
3023 {
3024 error_line = __LINE__;
3025 saber_stop ();
3026 goto bomb_out;
3027 }
3028
3029 if (!arg_was_number)
3030 {
3031 /* Allow spaces and such in names for G++ templates. */
3032 for (arg_end_p1 = arg_start+1;
3033 (ch = *arg_end_p1) != ';' && ch != '\0';
3034 arg_end_p1++)
3035 ;
3036
3037 if (ch == '\0')
3038 {
3039 error_line = __LINE__;
3040 saber_stop ();
3041 goto bomb_out;
3042 }
3043 }
3044
3045 /* Classify the directives now. */
3046 len = dir_end_p1 - dir_start;
3047 switch (dir_start[1])
3048 {
3049 default:
3050 error_line = __LINE__;
3051 saber_stop ();
3052 goto bomb_out;
3053
3054 case 'd':
3055 if (len == sizeof (".dim")-1
3056 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3057 && arg_was_number)
3058 {
3059 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3060
3061 *t_ptr = arg_number;
3062 while (*arg_end_p1 == ',' && arg_was_number)
3063 {
3064 arg_start = arg_end_p1+1;
3065 ch = *arg_start;
3066 while (ch == ' ' || ch == '\t')
3067 ch = *++arg_start;
3068
3069 arg_was_number = 0;
3070 if (isdigit (ch) || ch == '-' || ch == '+')
3071 {
3072 int ch2;
3073 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3074 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3075 arg_was_number++;
3076
3077 if (t_ptr == &temp_array[0])
3078 {
3079 error_line = __LINE__;
3080 saber_stop ();
3081 goto bomb_out;
3082 }
3083
3084 *--t_ptr = arg_number;
3085 }
3086 }
3087
3088 /* Reverse order of dimensions. */
3089 while (t_ptr <= &temp_array[ N_TQ-1 ])
3090 {
3091 if (t.num_dims >= N_TQ-1)
3092 {
3093 error_line = __LINE__;
3094 saber_stop ();
3095 goto bomb_out;
3096 }
3097
3098 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3099 }
3100 break;
3101 }
3102 else
3103 {
3104 error_line = __LINE__;
3105 saber_stop ();
3106 goto bomb_out;
3107 }
3108
3109
3110 case 's':
3111 if (len == sizeof (".scl")-1
3112 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3113 && arg_was_number
3114 && arg_number < ((symint_t) C_MAX))
3115 {
3116 /* If the symbol is a static or external, we have
3117 already gotten the appropriate type and class, so
3118 make sure we don't override those values. This is
3119 needed because there are some type and classes that
3120 are not in COFF, such as short data, etc. */
3121 if (symbol_type == st_Nil)
3122 {
3123 symbol_type = map_coff_sym_type[arg_number];
3124 storage_class = map_coff_storage [arg_number];
3125 }
3126 break;
3127 }
3128
3129 else if (len == sizeof (".size")-1
3130 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3131 && arg_was_number)
3132 {
3133 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3134
3135 *t_ptr = arg_number;
3136 while (*arg_end_p1 == ',' && arg_was_number)
3137 {
3138 arg_start = arg_end_p1+1;
3139 ch = *arg_start;
3140 while (ch == ' ' || ch == '\t')
3141 ch = *++arg_start;
3142
3143 arg_was_number = 0;
3144 if (isdigit (ch) || ch == '-' || ch == '+')
3145 {
3146 int ch2;
3147 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3148 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3149 arg_was_number++;
3150
3151 if (t_ptr == &temp_array[0])
3152 {
3153 error_line = __LINE__;
3154 saber_stop ();
3155 goto bomb_out;
3156 }
3157
3158 *--t_ptr = arg_number;
3159 }
3160 }
3161
3162 /* Reverse order of sizes. */
3163 while (t_ptr <= &temp_array[ N_TQ-1 ])
3164 {
3165 if (t.num_sizes >= N_TQ-1)
3166 {
3167 error_line = __LINE__;
3168 saber_stop ();
3169 goto bomb_out;
3170 }
3171
3172 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3173 }
3174 break;
3175 }
3176
3177 else
3178 {
3179 error_line = __LINE__;
3180 saber_stop ();
3181 goto bomb_out;
3182 }
3183
3184
3185 case 't':
3186 if (len == sizeof (".type")-1
3187 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3188 && arg_was_number)
3189 {
3190 tq_t *tq_ptr = &t.type_qualifiers[0];
3191
3192 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3193 t.basic_type = map_coff_types [(int)t.orig_type];
3194 for (i = N_TQ-1; i >= 0; i--)
3195 {
3196 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3197 & N_TMASK);
3198
3199 if (dt != (int)DT_NON)
3200 *tq_ptr++ = map_coff_derived_type [dt];
3201 }
3202
3203 /* If this is a function, ignore it, so that we don't get
3204 two entries (one from the .ent, and one for the .def
3205 that precedes it). Save the type information so that
3206 the end block can properly add it after the begin block
3207 index. For MIPS knows what reason, we must strip off
3208 the function type at this point. */
3209 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3210 {
3211 is_function = 1;
3212 tq_ptr[-1] = tq_Nil;
3213 }
3214
3215 break;
3216 }
3217
3218 else if (len == sizeof (".tag")-1
3219 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3220 {
3221 tag_start = arg_start;
3222 tag_end_p1 = arg_end_p1;
3223 break;
3224 }
3225
3226 else
3227 {
3228 error_line = __LINE__;
3229 saber_stop ();
3230 goto bomb_out;
3231 }
3232
3233
3234 case 'v':
3235 if (len == sizeof (".val")-1
3236 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3237 {
3238 if (arg_was_number)
3239 value = arg_number;
3240
3241 /* If the value is not an integer value, it must be the
3242 name of a static or global item. Look up the name in
3243 the original symbol table to pick up the storage
3244 class, symbol type, etc. */
3245 else
3246 {
3247 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3248 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3249
3250 ext_hash_ptr = hash_string (arg_start,
3251 arg_end_p1 - arg_start,
3252 &ext_str_hash[0],
3253 (symint_t *) 0);
3254
3255 if (ext_hash_ptr != (shash_t *) 0
3256 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3257 eptr = ext_hash_ptr->esym_ptr;
3258
3259 orig_hash_ptr = hash_string (arg_start,
3260 arg_end_p1 - arg_start,
3261 &orig_str_hash[0],
3262 (symint_t *) 0);
3263
3264 if ((orig_hash_ptr == (shash_t *) 0
3265 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3266 && eptr == (EXTR *) 0)
3267 {
3268 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3269 arg_end_p1 - arg_start,
3270 arg_start);
3271 value = 0;
3272 }
3273 else
3274 {
3275 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3276 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3277 ? orig_hash_ptr->sym_ptr
3278 : &eptr->asym;
3279
3280 symbol_type = (st_t) ptr->st;
3281 storage_class = (sc_t) ptr->sc;
3282 value = ptr->value;
3283 }
3284 }
3285 break;
3286 }
3287 else
3288 {
3289 error_line = __LINE__;
3290 saber_stop ();
3291 goto bomb_out;
3292 }
3293 }
3294
3295 /* Set up to find next directive. */
3296 dir_start = arg_end_p1 + 1;
3297 }
3298
3299
3300 if (storage_class == sc_Bits)
3301 {
3302 t.bitfield = 1;
3303 t.extra_sizes = 1;
3304 }
3305 else
3306 t.extra_sizes = 0;
3307
3308 if (t.num_dims > 0)
3309 {
3310 int num_real_sizes = t.num_sizes - t.extra_sizes;
3311 int diff = t.num_dims - num_real_sizes;
3312 int i = t.num_dims - 1;
3313 int j;
3314
3315 if (num_real_sizes != 1 || diff < 0)
3316 {
3317 error_line = __LINE__;
3318 saber_stop ();
3319 goto bomb_out;
3320 }
3321
3322 /* If this is an array, make sure the same number of dimensions
3323 and sizes were passed, creating extra sizes for multiply
3324 dimensioned arrays if not passed. */
3325
3326 if (diff)
3327 {
3328 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3329 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3330
3331 t.num_sizes = i + 1;
3332 for ( i--; i >= 0; i-- )
3333 {
3334 if (t.dimensions[ i+1 ])
3335 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3336 else
3337 t.sizes[ i ] = t.sizes[ i+1 ];
3338 }
3339 }
3340 }
3341
3342 /* Except for enumeration members & begin/ending of scopes, put the
3343 type word in the aux. symbol table. */
3344
3345 if (symbol_type == st_Block || symbol_type == st_End)
3346 indx = 0;
3347
3348 else if (inside_enumeration)
3349 indx = cur_file_ptr->void_type;
3350
3351 else
3352 {
3353 if (t.basic_type == bt_Struct
3354 || t.basic_type == bt_Union
3355 || t.basic_type == bt_Enum)
3356 {
3357 if (tag_start == (char *) 0)
3358 {
3359 error ("No tag specified for %.*s",
3360 name_end_p1 - name_start,
3361 name_start);
3362 return;
3363 }
3364
3365 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3366 t.basic_type);
3367 }
3368
3369 if (is_function)
3370 {
3371 last_func_type_info = t;
3372 last_func_eptr = eptr;
3373 return;
3374 }
3375
3376 indx = add_aux_sym_tir (&t,
3377 hash_yes,
3378 &cur_file_ptr->thash_head[0]);
3379 }
3380
3381
3382 /* If this is an external or static symbol, update the appropriate
3383 external symbol. */
3384
3385 if (eptr != (EXTR *) 0
3386 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3387 {
3388 eptr->ifd = cur_file_ptr->file_index;
3389 eptr->asym.index = indx;
3390 }
3391
3392
3393 /* Do any last minute adjustments that are necessary. */
3394 switch (symbol_type)
3395 {
3396 default:
3397 break;
3398
3399
3400 /* For the beginning of structs, unions, and enumerations, the
3401 size info needs to be passed in the value field. */
3402
3403 case st_Block:
3404 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3405 {
3406 error_line = __LINE__;
3407 saber_stop ();
3408 goto bomb_out;
3409 }
3410
3411 else
3412 value = t.sizes[0];
3413
3414 inside_enumeration = (t.orig_type == T_ENUM);
3415 break;
3416
3417
3418 /* For the end of structs, unions, and enumerations, omit the
3419 name which is always ".eos". This needs to be done last, so
3420 that any error reporting above gives the correct name. */
3421
3422 case st_End:
3423 name_start = name_end_p1 = (const char *) 0;
3424 value = inside_enumeration = 0;
3425 break;
3426
3427
3428 /* Members of structures and unions that aren't bitfields, need
3429 to adjust the value from a byte offset to a bit offset.
3430 Members of enumerations do not have the value adjusted, and
3431 can be distinguished by indx == indexNil. For enumerations,
3432 update the maximum enumeration value. */
3433
3434 case st_Member:
3435 if (!t.bitfield && !inside_enumeration)
3436 value *= 8;
3437
3438 break;
3439 }
3440
3441
3442 /* Add the symbol, except for global symbols outside of functions,
3443 for which the external symbol table is fine enough. */
3444
3445 if (eptr == (EXTR *) 0
3446 || eptr->asym.st == (int)st_Nil
3447 || cur_proc_ptr != (PDR *) 0)
3448 {
3449 symint_t isym = add_local_symbol (name_start, name_end_p1,
3450 symbol_type, storage_class,
3451 value,
3452 indx);
3453
3454 /* deal with struct, union, and enum tags. */
3455 if (symbol_type == st_Block)
3456 {
3457 /* Create or update the tag information. */
3458 tag_t *tag_ptr = get_tag (name_start,
3459 name_end_p1,
3460 isym,
3461 t.basic_type);
3462
3463 /* If there are any forward references, fill in the appropriate
3464 file and symbol indexes. */
3465
3466 symint_t file_index = cur_file_ptr->file_index;
3467 forward_t *f_next = tag_ptr->forward_ref;
3468 forward_t *f_cur;
3469
3470 while (f_next != (forward_t *) 0)
3471 {
3472 f_cur = f_next;
3473 f_next = f_next->next;
3474
3475 f_cur->ifd_ptr->isym = file_index;
3476 f_cur->index_ptr->rndx.index = isym;
3477
3478 free_forward (f_cur);
3479 }
3480
3481 tag_ptr->forward_ref = (forward_t *) 0;
3482 }
3483 }
3484
3485 /* Normal return */
3486 return;
3487
3488 /* Error return, issue message. */
3489 bomb_out:
3490 if (error_line)
3491 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3492 else
3493 error ("compiler error, badly formed #.def");
3494
3495 return;
3496 }
3497
3498 \f
3499 /* Parse .end directives. */
3500
3501 STATIC void
3502 parse_end (start)
3503 const char *start; /* start of directive */
3504 {
3505 register const char *start_func, *end_func_p1;
3506 register int ch;
3507 register symint_t value;
3508 register FDR *orig_fdr;
3509
3510 if (cur_file_ptr == (efdr_t *) 0)
3511 {
3512 error (".end directive without a preceding .file directive");
3513 return;
3514 }
3515
3516 if (cur_proc_ptr == (PDR *) 0)
3517 {
3518 error (".end directive without a preceding .ent directive");
3519 return;
3520 }
3521
3522 /* Get the function name, skipping whitespace. */
3523 for (start_func = start; isspace (*start_func); start_func++)
3524 ;
3525
3526 ch = *start_func;
3527 if (!IS_ASM_IDENT (ch))
3528 {
3529 error (".end directive has no name");
3530 return;
3531 }
3532
3533 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3534 ;
3535
3536
3537 /* Get the value field for creating the end from the original object
3538 file (which we find by locating the procedure start, and using the
3539 pointer to the end+1 block and backing up. The index points to a
3540 two word aux. symbol, whose first word is the index of the end
3541 symbol, and the second word is the type of the function return
3542 value. */
3543
3544 orig_fdr = cur_file_ptr->orig_fdr;
3545 value = 0;
3546 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3547 value = cur_oproc_end->value;
3548
3549 else
3550 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3551
3552 (void) add_local_symbol (start_func, end_func_p1,
3553 st_End, sc_Text,
3554 value,
3555 (symint_t) 0);
3556
3557 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3558 }
3559
3560 \f
3561 /* Parse .ent directives. */
3562
3563 STATIC void
3564 parse_ent (start)
3565 const char *start; /* start of directive */
3566 {
3567 register const char *start_func, *end_func_p1;
3568 register int ch;
3569
3570 if (cur_file_ptr == (efdr_t *) 0)
3571 {
3572 error (".ent directive without a preceding .file directive");
3573 return;
3574 }
3575
3576 if (cur_proc_ptr != (PDR *) 0)
3577 {
3578 error ("second .ent directive found before .end directive");
3579 return;
3580 }
3581
3582 for (start_func = start; isspace (*start_func); start_func++)
3583 ;
3584
3585 ch = *start_func;
3586 if (!IS_ASM_IDENT (ch))
3587 {
3588 error (".ent directive has no name");
3589 return;
3590 }
3591
3592 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3593 ;
3594
3595 (void) add_procedure (start_func, end_func_p1);
3596 }
3597
3598 \f
3599 /* Parse .file directives. */
3600
3601 STATIC void
3602 parse_file (start)
3603 const char *start; /* start of directive */
3604 {
3605 char *p;
3606 register char *start_name, *end_name_p1;
3607
3608 (void) strtol (start, &p, 0);
3609 if (start == p
3610 || (start_name = local_index (p, '"')) == (char *) 0
3611 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3612 {
3613 error ("Invalid .file directive");
3614 return;
3615 }
3616
3617 if (cur_proc_ptr != (PDR *) 0)
3618 {
3619 error ("No way to handle .file within .ent/.end section");
3620 return;
3621 }
3622
3623 add_file (start_name, end_name_p1);
3624 }
3625
3626 \f
3627 /* Make sure the @stabs symbol is emitted. */
3628
3629 static void
3630 mark_stabs (start)
3631 const char *start; /* Start of directive (ignored) */
3632 {
3633 if (!stabs_seen)
3634 {
3635 /* Add a dummy @stabs symbol. */
3636 stabs_seen = 1;
3637 (void) add_local_symbol (stabs_symbol,
3638 stabs_symbol + sizeof (stabs_symbol),
3639 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3640
3641 }
3642 }
3643
3644 \f
3645 /* Parse .stabs directives.
3646
3647 .stabs directives have five fields:
3648 "string" a string, encoding the type information.
3649 code a numeric code, defined in <stab.h>
3650 0 a zero
3651 0 a zero or line number
3652 value a numeric value or an address.
3653
3654 If the value is relocatable, we transform this into:
3655 iss points as an index into string space
3656 value value from lookup of the name
3657 st st from lookup of the name
3658 sc sc from lookup of the name
3659 index code|CODE_MASK
3660
3661 If the value is not relocatable, we transform this into:
3662 iss points as an index into string space
3663 value value
3664 st st_Nil
3665 sc sc_Nil
3666 index code|CODE_MASK
3667
3668 .stabn directives have four fields (string is null):
3669 code a numeric code, defined in <stab.h>
3670 0 a zero
3671 0 a zero or a line number
3672 value a numeric value or an address. */
3673
3674 STATIC void
3675 parse_stabs_common (string_start, string_end, rest)
3676 const char *string_start; /* start of string or NULL */
3677 const char *string_end; /* end+1 of string or NULL */
3678 const char *rest; /* rest of the directive. */
3679 {
3680 efdr_t *save_file_ptr = cur_file_ptr;
3681 symint_t code;
3682 symint_t value;
3683 char *p;
3684 st_t st;
3685 sc_t sc;
3686 int ch;
3687
3688 if (stabs_seen == 0)
3689 mark_stabs ("");
3690
3691 /* Read code from stabs. */
3692 if (!isdigit (*rest))
3693 {
3694 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3695 return;
3696 }
3697
3698 code = strtol (rest, &p, 0);
3699
3700 /* Line number stabs are handled differently, since they have two values,
3701 the line number and the address of the label. We use the index field
3702 (aka code) to hold the line number, and the value field to hold the
3703 address. The symbol type is st_Label, which should be different from
3704 the other stabs, so that gdb can recognize it. */
3705
3706 if (code == (int)N_SLINE)
3707 {
3708 SYMR *sym_ptr, dummy_symr;
3709 shash_t *shash_ptr;
3710
3711 /* Skip ,0, */
3712 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3713 {
3714 error ("Invalid line number .stabs/.stabn directive");
3715 return;
3716 }
3717
3718 code = strtol (p+3, &p, 0);
3719 ch = *++p;
3720 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3721 {
3722 error ("Invalid line number .stabs/.stabn directive");
3723 return;
3724 }
3725
3726 dummy_symr.index = code;
3727 if (dummy_symr.index != code)
3728 {
3729 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3730 code);
3731
3732 return;
3733 }
3734
3735 shash_ptr = hash_string (p,
3736 strlen (p) - 1,
3737 &orig_str_hash[0],
3738 (symint_t *) 0);
3739
3740 if (shash_ptr == (shash_t *) 0
3741 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3742 {
3743 error ("Invalid .stabs/.stabn directive, value not found");
3744 return;
3745 }
3746
3747 if ((st_t) sym_ptr->st != st_Label)
3748 {
3749 error ("Invalid line number .stabs/.stabn directive");
3750 return;
3751 }
3752
3753 st = st_Label;
3754 sc = (sc_t) sym_ptr->sc;
3755 value = sym_ptr->value;
3756 }
3757 else
3758 {
3759 /* Skip ,<num>,<num>, */
3760 if (*p++ != ',')
3761 goto failure;
3762 for (; isdigit (*p); p++)
3763 ;
3764 if (*p++ != ',')
3765 goto failure;
3766 for (; isdigit (*p); p++)
3767 ;
3768 if (*p++ != ',')
3769 goto failure;
3770 ch = *p;
3771 if (!IS_ASM_IDENT (ch) && ch != '-')
3772 {
3773 failure:
3774 error ("Invalid .stabs/.stabn directive, bad character");
3775 return;
3776 }
3777
3778 if (isdigit (ch) || ch == '-')
3779 {
3780 st = st_Nil;
3781 sc = sc_Nil;
3782 value = strtol (p, &p, 0);
3783 if (*p != '\n')
3784 {
3785 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3786 return;
3787 }
3788 }
3789 else if (!IS_ASM_IDENT (ch))
3790 {
3791 error ("Invalid .stabs/.stabn directive, bad character");
3792 return;
3793 }
3794 else
3795 {
3796 SYMR *sym_ptr;
3797 shash_t *shash_ptr;
3798 const char *start, *end_p1;
3799
3800 start = p;
3801 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3802 {
3803 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3804 end_p1 = start + strlen(start) - 1;
3805 }
3806
3807 shash_ptr = hash_string (start,
3808 end_p1 - start,
3809 &orig_str_hash[0],
3810 (symint_t *) 0);
3811
3812 if (shash_ptr == (shash_t *) 0
3813 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3814 {
3815 shash_ptr = hash_string (start,
3816 end_p1 - start,
3817 &ext_str_hash[0],
3818 (symint_t *) 0);
3819
3820 if (shash_ptr == (shash_t *) 0
3821 || shash_ptr->esym_ptr == (EXTR *) 0)
3822 {
3823 error ("Invalid .stabs/.stabn directive, value not found");
3824 return;
3825 }
3826 else
3827 sym_ptr = &(shash_ptr->esym_ptr->asym);
3828 }
3829
3830 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3831 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3832 {
3833 sc = scNil;
3834 st = stNil;
3835 }
3836 else
3837 {
3838 sc = (sc_t) sym_ptr->sc;
3839 st = (st_t) sym_ptr->st;
3840 }
3841 value = sym_ptr->value;
3842
3843 ch = *end_p1++;
3844 if (ch != '\n')
3845 {
3846 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3847 || ((ch != '+') && (ch != '-')))
3848 {
3849 error ("Invalid .stabs/.stabn directive, badly formed value");
3850 return;
3851 }
3852 if (ch == '+')
3853 value += strtol (end_p1, &p, 0);
3854 else if (ch == '-')
3855 value -= strtol (end_p1, &p, 0);
3856
3857 if (*p != '\n')
3858 {
3859 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3860 return;
3861 }
3862 }
3863 }
3864 code = MIPS_MARK_STAB(code);
3865 }
3866
3867 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3868 /* Restore normal file type. */
3869 cur_file_ptr = save_file_ptr;
3870 }
3871
3872
3873 STATIC void
3874 parse_stabs (start)
3875 const char *start; /* start of directive */
3876 {
3877 const char *end = local_index (start+1, '"');
3878
3879 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3880 {
3881 error ("Invalid .stabs directive, no string");
3882 return;
3883 }
3884
3885 parse_stabs_common (start+1, end, end+2);
3886 }
3887
3888
3889 STATIC void
3890 parse_stabn (start)
3891 const char *start; /* start of directive */
3892 {
3893 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3894 }
3895
3896 \f
3897 /* Parse the input file, and write the lines to the output file
3898 if needed. */
3899
3900 STATIC void
3901 parse_input __proto((void))
3902 {
3903 register char *p;
3904 register int i;
3905 register thead_t *ptag_head;
3906 register tag_t *ptag;
3907 register tag_t *ptag_next;
3908
3909 if (debug)
3910 fprintf (stderr, "\tinput\n");
3911
3912 /* Add a dummy scope block around the entire compilation unit for
3913 structures defined outside of blocks. */
3914 ptag_head = allocate_thead ();
3915 ptag_head->first_tag = 0;
3916 ptag_head->prev = cur_tag_head;
3917 cur_tag_head = ptag_head;
3918
3919 while ((p = read_line ()) != (char *) 0)
3920 {
3921 /* Skip leading blanks */
3922 while (isspace (*p))
3923 p++;
3924
3925 /* See if it's a directive we handle. If so, dispatch handler. */
3926 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3927 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3928 && isspace (p[pseudo_ops[i].len]))
3929 {
3930 p += pseudo_ops[i].len; /* skip to first argument */
3931 while (isspace (*p))
3932 p++;
3933
3934 (*pseudo_ops[i].func)( p );
3935 break;
3936 }
3937 }
3938
3939 /* Process any tags at global level. */
3940 ptag_head = cur_tag_head;
3941 cur_tag_head = ptag_head->prev;
3942
3943 for (ptag = ptag_head->first_tag;
3944 ptag != (tag_t *) 0;
3945 ptag = ptag_next)
3946 {
3947 if (ptag->forward_ref != (forward_t *) 0)
3948 add_unknown_tag (ptag);
3949
3950 ptag_next = ptag->same_block;
3951 ptag->hash_ptr->tag_ptr = ptag->same_name;
3952 free_tag (ptag);
3953 }
3954
3955 free_thead (ptag_head);
3956
3957 }
3958
3959 \f
3960 /* Update the global headers with the final offsets in preparation
3961 to write out the .T file. */
3962
3963 STATIC void
3964 update_headers __proto((void))
3965 {
3966 register symint_t i;
3967 register efdr_t *file_ptr;
3968
3969 /* Set up the symbolic header. */
3970 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3971 symbolic_header.magic = orig_sym_hdr.magic;
3972 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3973
3974 /* Set up global counts. */
3975 symbolic_header.issExtMax = ext_strings.num_allocated;
3976 symbolic_header.idnMax = dense_num.num_allocated;
3977 symbolic_header.ifdMax = file_desc.num_allocated;
3978 symbolic_header.iextMax = ext_symbols.num_allocated;
3979 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3980 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3981 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3982 symbolic_header.crfd = orig_sym_hdr.crfd;
3983
3984
3985 /* Loop through each file, figuring out how many local syms,
3986 line numbers, etc. there are. Also, put out end symbol
3987 for the filename. */
3988
3989 for (file_ptr = first_file;
3990 file_ptr != (efdr_t *) 0;
3991 file_ptr = file_ptr->next_file)
3992 {
3993 register SYMR *sym_start;
3994 register SYMR *sym;
3995 register SYMR *sym_end_p1;
3996 register FDR *fd_ptr = file_ptr->orig_fdr;
3997
3998 cur_file_ptr = file_ptr;
3999
4000 /* Copy st_Static symbols from the original local symbol table if
4001 they did not get added to the new local symbol table.
4002 This happens with stabs-in-ecoff or if the source file is
4003 compiled without debugging. */
4004 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4005 sym_end_p1 = sym_start + fd_ptr->csym;
4006 for (sym = sym_start; sym < sym_end_p1; sym++)
4007 {
4008 if ((st_t)sym->st == st_Static)
4009 {
4010 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4011 register Size_t len = strlen (str);
4012 register shash_t *hash_ptr;
4013
4014 /* Ignore internal labels. */
4015 if (str[0] == '$' && str[1] == 'L')
4016 continue;
4017 hash_ptr = hash_string (str,
4018 (Ptrdiff_t)len,
4019 &file_ptr->shash_head[0],
4020 (symint_t *) 0);
4021 if (hash_ptr == (shash_t *) 0)
4022 {
4023 (void) add_local_symbol (str, str + len,
4024 (st_t)sym->st, (sc_t)sym->sc,
4025 (symint_t)sym->value,
4026 (symint_t)indexNil);
4027 }
4028 }
4029 }
4030 (void) add_local_symbol ((const char *) 0, (const char *) 0,
4031 st_End, sc_Text,
4032 (symint_t) 0,
4033 (symint_t) 0);
4034
4035 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4036 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4037 symbolic_header.ipdMax += file_ptr->fdr.cpd;
4038
4039 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4040 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4041 symbolic_header.isymMax += file_ptr->fdr.csym;
4042
4043 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4044 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4045 symbolic_header.iauxMax += file_ptr->fdr.caux;
4046
4047 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4048 file_ptr->fdr.issBase = symbolic_header.issMax;
4049 symbolic_header.issMax += file_ptr->fdr.cbSs;
4050 }
4051
4052 #ifndef ALIGN_SYMTABLE_OFFSET
4053 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4054 #endif
4055
4056 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4057 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4058 if (i > 0)
4059 {
4060 symbolic_header.cbLineOffset = file_offset;
4061 file_offset += i;
4062 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4063 }
4064
4065 i = symbolic_header.ioptMax; /* optimization symbols */
4066 if (((long) i) > 0)
4067 {
4068 symbolic_header.cbOptOffset = file_offset;
4069 file_offset += i * sizeof (OPTR);
4070 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4071 }
4072
4073 i = symbolic_header.idnMax; /* dense numbers */
4074 if (i > 0)
4075 {
4076 symbolic_header.cbDnOffset = file_offset;
4077 file_offset += i * sizeof (DNR);
4078 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4079 }
4080
4081 i = symbolic_header.ipdMax; /* procedure tables */
4082 if (i > 0)
4083 {
4084 symbolic_header.cbPdOffset = file_offset;
4085 file_offset += i * sizeof (PDR);
4086 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4087 }
4088
4089 i = symbolic_header.isymMax; /* local symbols */
4090 if (i > 0)
4091 {
4092 symbolic_header.cbSymOffset = file_offset;
4093 file_offset += i * sizeof (SYMR);
4094 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4095 }
4096
4097 i = symbolic_header.iauxMax; /* aux syms. */
4098 if (i > 0)
4099 {
4100 symbolic_header.cbAuxOffset = file_offset;
4101 file_offset += i * sizeof (TIR);
4102 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4103 }
4104
4105 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4106 if (i > 0)
4107 {
4108 symbolic_header.cbSsOffset = file_offset;
4109 file_offset += i;
4110 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4111 }
4112
4113 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4114 if (i > 0)
4115 {
4116 symbolic_header.cbSsExtOffset = file_offset;
4117 file_offset += i;
4118 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4119 }
4120
4121 i = symbolic_header.ifdMax; /* file tables */
4122 if (i > 0)
4123 {
4124 symbolic_header.cbFdOffset = file_offset;
4125 file_offset += i * sizeof (FDR);
4126 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4127 }
4128
4129 i = symbolic_header.crfd; /* relative file descriptors */
4130 if (i > 0)
4131 {
4132 symbolic_header.cbRfdOffset = file_offset;
4133 file_offset += i * sizeof (symint_t);
4134 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4135 }
4136
4137 i = symbolic_header.iextMax; /* external symbols */
4138 if (i > 0)
4139 {
4140 symbolic_header.cbExtOffset = file_offset;
4141 file_offset += i * sizeof (EXTR);
4142 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4143 }
4144 }
4145
4146 \f
4147 /* Write out a varray at a given location. */
4148
4149 STATIC void
4150 write_varray (vp, offset, str)
4151 varray_t *vp; /* virtual array */
4152 off_t offset; /* offset to write varray to */
4153 const char *str; /* string to print out when tracing */
4154 {
4155 int num_write, sys_write;
4156 vlinks_t *ptr;
4157
4158 if (vp->num_allocated == 0)
4159 return;
4160
4161 if (debug)
4162 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4163 vp, offset, vp->num_allocated * vp->object_size, str);
4164
4165 if (file_offset != offset
4166 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4167 pfatal_with_name (object_name);
4168
4169 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4170 {
4171 num_write = (ptr->next == (vlinks_t *) 0)
4172 ? vp->objects_last_page * vp->object_size
4173 : vp->objects_per_page * vp->object_size;
4174
4175 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4176 if (sys_write <= 0)
4177 pfatal_with_name (object_name);
4178
4179 else if (sys_write != num_write)
4180 fatal ("Wrote %d bytes to %s, system returned %d",
4181 num_write,
4182 object_name,
4183 sys_write);
4184
4185 file_offset += num_write;
4186 }
4187 }
4188
4189 \f
4190 /* Write out the symbol table in the object file. */
4191
4192 STATIC void
4193 write_object __proto((void))
4194 {
4195 int sys_write;
4196 efdr_t *file_ptr;
4197 off_t offset;
4198
4199 if (debug)
4200 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4201 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4202 "symbolic header");
4203
4204 sys_write = fwrite ((PTR_T) &symbolic_header,
4205 1,
4206 sizeof (symbolic_header),
4207 object_stream);
4208
4209 if (sys_write < 0)
4210 pfatal_with_name (object_name);
4211
4212 else if (sys_write != sizeof (symbolic_header))
4213 fatal ("Wrote %d bytes to %s, system returned %d",
4214 sizeof (symbolic_header),
4215 object_name,
4216 sys_write);
4217
4218
4219 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4220
4221 if (symbolic_header.cbLine > 0) /* line numbers */
4222 {
4223 long sys_write;
4224
4225 if (file_offset != symbolic_header.cbLineOffset
4226 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4227 pfatal_with_name (object_name);
4228
4229 if (debug)
4230 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4231 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4232 symbolic_header.cbLine, "Line numbers");
4233
4234 sys_write = fwrite ((PTR_T) orig_linenum,
4235 1,
4236 symbolic_header.cbLine,
4237 object_stream);
4238
4239 if (sys_write <= 0)
4240 pfatal_with_name (object_name);
4241
4242 else if (sys_write != symbolic_header.cbLine)
4243 fatal ("Wrote %d bytes to %s, system returned %d",
4244 symbolic_header.cbLine,
4245 object_name,
4246 sys_write);
4247
4248 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4249 }
4250
4251 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4252 {
4253 long sys_write;
4254 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4255
4256 if (file_offset != symbolic_header.cbOptOffset
4257 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4258 pfatal_with_name (object_name);
4259
4260 if (debug)
4261 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4262 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4263 num_write, "Optimizer symbols");
4264
4265 sys_write = fwrite ((PTR_T) orig_opt_syms,
4266 1,
4267 num_write,
4268 object_stream);
4269
4270 if (sys_write <= 0)
4271 pfatal_with_name (object_name);
4272
4273 else if (sys_write != num_write)
4274 fatal ("Wrote %d bytes to %s, system returned %d",
4275 num_write,
4276 object_name,
4277 sys_write);
4278
4279 file_offset = symbolic_header.cbOptOffset + num_write;
4280 }
4281
4282 if (symbolic_header.idnMax > 0) /* dense numbers */
4283 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4284
4285 if (symbolic_header.ipdMax > 0) /* procedure tables */
4286 {
4287 offset = symbolic_header.cbPdOffset;
4288 for (file_ptr = first_file;
4289 file_ptr != (efdr_t *) 0;
4290 file_ptr = file_ptr->next_file)
4291 {
4292 write_varray (&file_ptr->procs, offset, "Procedure tables");
4293 offset = file_offset;
4294 }
4295 }
4296
4297 if (symbolic_header.isymMax > 0) /* local symbols */
4298 {
4299 offset = symbolic_header.cbSymOffset;
4300 for (file_ptr = first_file;
4301 file_ptr != (efdr_t *) 0;
4302 file_ptr = file_ptr->next_file)
4303 {
4304 write_varray (&file_ptr->symbols, offset, "Local symbols");
4305 offset = file_offset;
4306 }
4307 }
4308
4309 if (symbolic_header.iauxMax > 0) /* aux symbols */
4310 {
4311 offset = symbolic_header.cbAuxOffset;
4312 for (file_ptr = first_file;
4313 file_ptr != (efdr_t *) 0;
4314 file_ptr = file_ptr->next_file)
4315 {
4316 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4317 offset = file_offset;
4318 }
4319 }
4320
4321 if (symbolic_header.issMax > 0) /* local strings */
4322 {
4323 offset = symbolic_header.cbSsOffset;
4324 for (file_ptr = first_file;
4325 file_ptr != (efdr_t *) 0;
4326 file_ptr = file_ptr->next_file)
4327 {
4328 write_varray (&file_ptr->strings, offset, "Local strings");
4329 offset = file_offset;
4330 }
4331 }
4332
4333 if (symbolic_header.issExtMax > 0) /* external strings */
4334 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4335
4336 if (symbolic_header.ifdMax > 0) /* file tables */
4337 {
4338 offset = symbolic_header.cbFdOffset;
4339 if (file_offset != offset
4340 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4341 pfatal_with_name (object_name);
4342
4343 file_offset = offset;
4344 for (file_ptr = first_file;
4345 file_ptr != (efdr_t *) 0;
4346 file_ptr = file_ptr->next_file)
4347 {
4348 if (debug)
4349 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4350 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4351
4352 sys_write = fwrite (&file_ptr->fdr,
4353 1,
4354 sizeof (FDR),
4355 object_stream);
4356
4357 if (sys_write < 0)
4358 pfatal_with_name (object_name);
4359
4360 else if (sys_write != sizeof (FDR))
4361 fatal ("Wrote %d bytes to %s, system returned %d",
4362 sizeof (FDR),
4363 object_name,
4364 sys_write);
4365
4366 file_offset = offset += sizeof (FDR);
4367 }
4368 }
4369
4370 if (symbolic_header.crfd > 0) /* relative file descriptors */
4371 {
4372 long sys_write;
4373 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4374
4375 if (file_offset != symbolic_header.cbRfdOffset
4376 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4377 pfatal_with_name (object_name);
4378
4379 if (debug)
4380 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4381 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4382 num_write, "Relative file descriptors");
4383
4384 sys_write = fwrite (orig_rfds,
4385 1,
4386 num_write,
4387 object_stream);
4388
4389 if (sys_write <= 0)
4390 pfatal_with_name (object_name);
4391
4392 else if (sys_write != num_write)
4393 fatal ("Wrote %d bytes to %s, system returned %d",
4394 num_write,
4395 object_name,
4396 sys_write);
4397
4398 file_offset = symbolic_header.cbRfdOffset + num_write;
4399 }
4400
4401 if (symbolic_header.issExtMax > 0) /* external symbols */
4402 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4403
4404 if (fclose (object_stream) != 0)
4405 pfatal_with_name (object_name);
4406 }
4407
4408 \f
4409 /* Read some bytes at a specified location, and return a pointer. */
4410
4411 STATIC page_t *
4412 read_seek (size, offset, str)
4413 Size_t size; /* # bytes to read */
4414 off_t offset; /* offset to read at */
4415 const char *str; /* name for tracing */
4416 {
4417 page_t *ptr;
4418 long sys_read = 0;
4419
4420 if (size == 0) /* nothing to read */
4421 return (page_t *) 0;
4422
4423 if (debug)
4424 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4425 size, offset, file_offset, str);
4426
4427 #ifndef MALLOC_CHECK
4428 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4429 #else
4430 ptr = (page_t *) xcalloc (1, size);
4431 #endif
4432
4433 /* If we need to seek, and the distance is nearby, just do some reads,
4434 to speed things up. */
4435 if (file_offset != offset)
4436 {
4437 symint_t difference = offset - file_offset;
4438
4439 if (difference < 8)
4440 {
4441 char small_buffer[8];
4442
4443 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4444 if (sys_read <= 0)
4445 pfatal_with_name (obj_in_name);
4446
4447 if (sys_read != difference)
4448 fatal ("Wanted to read %d bytes from %s, system returned %d",
4449 size,
4450 obj_in_name,
4451 sys_read);
4452 }
4453 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4454 pfatal_with_name (obj_in_name);
4455 }
4456
4457 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4458 if (sys_read <= 0)
4459 pfatal_with_name (obj_in_name);
4460
4461 if (sys_read != size)
4462 fatal ("Wanted to read %d bytes from %s, system returned %d",
4463 size,
4464 obj_in_name,
4465 sys_read);
4466
4467 file_offset = offset + size;
4468
4469 if (file_offset > max_file_offset)
4470 max_file_offset = file_offset;
4471
4472 return ptr;
4473 }
4474
4475 \f
4476 /* Read the existing object file (and copy to the output object file
4477 if it is different from the input object file), and remove the old
4478 symbol table. */
4479
4480 STATIC void
4481 copy_object __proto((void))
4482 {
4483 char buffer[ PAGE_SIZE ];
4484 register int sys_read;
4485 register int remaining;
4486 register int num_write;
4487 register int sys_write;
4488 register int fd, es;
4489 register int delete_ifd = 0;
4490 register int *remap_file_number;
4491 struct stat stat_buf;
4492
4493 if (debug)
4494 fprintf (stderr, "\tcopy\n");
4495
4496 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4497 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4498 pfatal_with_name (obj_in_name);
4499
4500 sys_read = fread ((PTR_T) &orig_file_header,
4501 1,
4502 sizeof (struct filehdr),
4503 obj_in_stream);
4504
4505 if (sys_read < 0)
4506 pfatal_with_name (obj_in_name);
4507
4508 else if (sys_read == 0 && feof (obj_in_stream))
4509 return; /* create a .T file sans file header */
4510
4511 else if (sys_read < sizeof (struct filehdr))
4512 fatal ("Wanted to read %d bytes from %s, system returned %d",
4513 sizeof (struct filehdr),
4514 obj_in_name,
4515 sys_read);
4516
4517
4518 if (orig_file_header.f_nsyms != sizeof (HDRR))
4519 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4520 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4521
4522
4523 /* Read in the current symbolic header. */
4524 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4525 pfatal_with_name (input_name);
4526
4527 sys_read = fread ((PTR_T) &orig_sym_hdr,
4528 1,
4529 sizeof (orig_sym_hdr),
4530 obj_in_stream);
4531
4532 if (sys_read < 0)
4533 pfatal_with_name (object_name);
4534
4535 else if (sys_read < sizeof (struct filehdr))
4536 fatal ("Wanted to read %d bytes from %s, system returned %d",
4537 sizeof (struct filehdr),
4538 obj_in_name,
4539 sys_read);
4540
4541
4542 /* Read in each of the sections if they exist in the object file.
4543 We read things in in the order the mips assembler creates the
4544 sections, so in theory no extra seeks are done.
4545
4546 For simplicity sake, round each read up to a page boundary,
4547 we may want to revisit this later.... */
4548
4549 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4550
4551 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4552 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4553 orig_sym_hdr.cbLineOffset,
4554 "Line numbers");
4555
4556 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4557 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4558 orig_sym_hdr.cbPdOffset,
4559 "Procedure tables");
4560
4561 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4562 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4563 orig_sym_hdr.cbSymOffset,
4564 "Local symbols");
4565
4566 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4567 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4568 orig_sym_hdr.cbAuxOffset,
4569 "Aux. symbols");
4570
4571 if (orig_sym_hdr.issMax > 0) /* local strings */
4572 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4573 orig_sym_hdr.cbSsOffset,
4574 "Local strings");
4575
4576 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4577 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4578 orig_sym_hdr.cbSsExtOffset,
4579 "External strings");
4580
4581 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4582 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4583 orig_sym_hdr.cbFdOffset,
4584 "File tables");
4585
4586 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4587 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4588 orig_sym_hdr.cbRfdOffset,
4589 "Relative file descriptors");
4590
4591 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4592 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4593 orig_sym_hdr.cbExtOffset,
4594 "External symbols");
4595
4596 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4597 {
4598 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4599 orig_sym_hdr.cbDnOffset,
4600 "Dense numbers");
4601
4602 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4603 }
4604
4605 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4606 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4607 orig_sym_hdr.cbOptOffset,
4608 "Optimizer symbols");
4609
4610
4611
4612 /* Abort if the symbol table is not last. */
4613 if (max_file_offset != stat_buf.st_size)
4614 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4615 max_file_offset,
4616 stat_buf.st_size);
4617
4618
4619 /* If the first original file descriptor is a dummy which the assembler
4620 put out, but there are no symbols in it, skip it now. */
4621 if (orig_sym_hdr.ifdMax > 1
4622 && orig_files->csym == 2
4623 && orig_files->caux == 0)
4624 {
4625 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4626 char *suffix = local_rindex (filename, '.');
4627
4628 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4629 delete_ifd = 1;
4630 }
4631
4632
4633 /* Create array to map original file numbers to the new file numbers
4634 (in case there are duplicate filenames, we collapse them into one
4635 file section, the MIPS assembler may or may not collapse them). */
4636
4637 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4638
4639 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4640 {
4641 register FDR *fd_ptr = ORIG_FILES (fd);
4642 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4643
4644 /* file support itself. */
4645 add_file (filename, filename + strlen (filename));
4646 remap_file_number[fd] = cur_file_ptr->file_index;
4647 }
4648
4649 if (delete_ifd > 0) /* just in case */
4650 remap_file_number[0] = remap_file_number[1];
4651
4652
4653 /* Loop, adding each of the external symbols. These must be in
4654 order or otherwise we would have to change the relocation
4655 entries. We don't just call add_bytes, because we need to have
4656 the names put into the external hash table. We set the type to
4657 'void' for now, and parse_def will fill in the correct type if it
4658 is in the symbol table. We must add the external symbols before
4659 the locals, since the locals do lookups against the externals. */
4660
4661 if (debug)
4662 fprintf (stderr, "\tehash\n");
4663
4664 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4665 {
4666 register EXTR *eptr = orig_ext_syms + es;
4667 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4668 register unsigned ifd = eptr->ifd;
4669
4670 (void) add_ext_symbol (ename,
4671 ename + strlen (ename),
4672 (st_t) eptr->asym.st,
4673 (sc_t) eptr->asym.sc,
4674 eptr->asym.value,
4675 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4676 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4677 }
4678
4679
4680 /* For each of the files in the object file, copy the symbols, and such
4681 into the varrays for the new object file. */
4682
4683 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4684 {
4685 register FDR *fd_ptr = ORIG_FILES (fd);
4686 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4687 register SYMR *sym_start;
4688 register SYMR *sym;
4689 register SYMR *sym_end_p1;
4690 register PDR *proc_start;
4691 register PDR *proc;
4692 register PDR *proc_end_p1;
4693
4694 /* file support itself. */
4695 add_file (filename, filename + strlen (filename));
4696 cur_file_ptr->orig_fdr = fd_ptr;
4697
4698 /* Copy stuff that's just passed through (such as line #'s) */
4699 cur_file_ptr->fdr.adr = fd_ptr->adr;
4700 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4701 cur_file_ptr->fdr.cline = fd_ptr->cline;
4702 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4703 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4704 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4705 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4706 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4707 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4708 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4709
4710 if (debug)
4711 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4712
4713 /* For each of the static and global symbols defined, add them
4714 to the hash table of original symbols, so we can look up
4715 their values. */
4716
4717 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4718 sym_end_p1 = sym_start + fd_ptr->csym;
4719 for (sym = sym_start; sym < sym_end_p1; sym++)
4720 {
4721 switch ((st_t) sym->st)
4722 {
4723 default:
4724 break;
4725
4726 case st_Global:
4727 case st_Static:
4728 case st_Label:
4729 case st_Proc:
4730 case st_StaticProc:
4731 {
4732 auto symint_t hash_index;
4733 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4734 register Size_t len = strlen (str);
4735 register shash_t *shash_ptr = hash_string (str,
4736 (Ptrdiff_t)len,
4737 &orig_str_hash[0],
4738 &hash_index);
4739
4740 if (shash_ptr != (shash_t *) 0)
4741 error ("internal error, %s is already in original symbol table", str);
4742
4743 else
4744 {
4745 shash_ptr = allocate_shash ();
4746 shash_ptr->next = orig_str_hash[hash_index];
4747 orig_str_hash[hash_index] = shash_ptr;
4748
4749 shash_ptr->len = len;
4750 shash_ptr->indx = indexNil;
4751 shash_ptr->string = str;
4752 shash_ptr->sym_ptr = sym;
4753 }
4754 }
4755 break;
4756
4757 case st_End:
4758 if ((sc_t) sym->sc == sc_Text)
4759 {
4760 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4761
4762 if (*str != '\0')
4763 {
4764 register Size_t len = strlen (str);
4765 register shash_t *shash_ptr = hash_string (str,
4766 (Ptrdiff_t)len,
4767 &orig_str_hash[0],
4768 (symint_t *) 0);
4769
4770 if (shash_ptr != (shash_t *) 0)
4771 shash_ptr->end_ptr = sym;
4772 }
4773 }
4774 break;
4775
4776 }
4777 }
4778
4779 if (debug)
4780 {
4781 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4782 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4783 }
4784
4785 /* Go through each of the procedures in this file, and add the
4786 procedure pointer to the hash entry for the given name. */
4787
4788 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4789 proc_end_p1 = proc_start + fd_ptr->cpd;
4790 for (proc = proc_start; proc < proc_end_p1; proc++)
4791 {
4792 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4793 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4794 register Size_t len = strlen (str);
4795 register shash_t *shash_ptr = hash_string (str,
4796 (Ptrdiff_t)len,
4797 &orig_str_hash[0],
4798 (symint_t *) 0);
4799
4800 if (shash_ptr == (shash_t *) 0)
4801 error ("internal error, function %s is not in original symbol table", str);
4802
4803 else
4804 shash_ptr->proc_ptr = proc;
4805 }
4806
4807 if (debug)
4808 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4809
4810 }
4811 cur_file_ptr = first_file;
4812
4813
4814 /* Copy all of the object file up to the symbol table. Originally
4815 we were going to use ftruncate, but that doesn't seem to work
4816 on Ultrix 3.1.... */
4817
4818 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4819 pfatal_with_name (obj_in_name);
4820
4821 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4822 pfatal_with_name (object_name);
4823
4824 for (remaining = orig_file_header.f_symptr;
4825 remaining > 0;
4826 remaining -= num_write)
4827 {
4828 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4829 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4830 if (sys_read <= 0)
4831 pfatal_with_name (obj_in_name);
4832
4833 else if (sys_read != num_write)
4834 fatal ("Wanted to read %d bytes from %s, system returned %d",
4835 num_write,
4836 obj_in_name,
4837 sys_read);
4838
4839 sys_write = fwrite (buffer, 1, num_write, object_stream);
4840 if (sys_write <= 0)
4841 pfatal_with_name (object_name);
4842
4843 else if (sys_write != num_write)
4844 fatal ("Wrote %d bytes to %s, system returned %d",
4845 num_write,
4846 object_name,
4847 sys_write);
4848 }
4849 }
4850
4851 \f
4852 /* Ye olde main program. */
4853
4854 int
4855 main (argc, argv)
4856 int argc;
4857 char *argv[];
4858 {
4859 int iflag = 0;
4860 char *p = local_rindex (argv[0], '/');
4861 char *num_end;
4862 int option;
4863 int i;
4864
4865 progname = (p != 0) ? p+1 : argv[0];
4866
4867 (void) signal (SIGSEGV, catch_signal);
4868 (void) signal (SIGBUS, catch_signal);
4869 (void) signal (SIGABRT, catch_signal);
4870
4871 #if !defined(__SABER__) && !defined(lint)
4872 if (sizeof (efdr_t) > PAGE_USIZE)
4873 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4874 sizeof (efdr_t),
4875 PAGE_USIZE);
4876
4877 if (sizeof (page_t) != PAGE_USIZE)
4878 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4879 sizeof (page_t),
4880 PAGE_USIZE);
4881
4882 #endif
4883
4884 alloc_counts[ alloc_type_none ].alloc_name = "none";
4885 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4886 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4887 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4888 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4889 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4890 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4891 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4892 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4893
4894 int_type_info = type_info_init;
4895 int_type_info.basic_type = bt_Int;
4896
4897 void_type_info = type_info_init;
4898 void_type_info.basic_type = bt_Void;
4899
4900 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4901 switch (option)
4902 {
4903 default:
4904 had_errors++;
4905 break;
4906
4907 case 'd':
4908 debug = strtol (optarg, &num_end, 0);
4909 if ((unsigned)debug > 4 || num_end == optarg)
4910 had_errors++;
4911
4912 break;
4913
4914 case 'I':
4915 if (rename_output || obj_in_name != (char *) 0)
4916 had_errors++;
4917 else
4918 rename_output = 1;
4919
4920 /* fall through to 'i' case. */
4921
4922 case 'i':
4923 if (obj_in_name == (char *) 0)
4924 {
4925 obj_in_name = optarg;
4926 iflag++;
4927 }
4928 else
4929 had_errors++;
4930 break;
4931
4932 case 'o':
4933 if (object_name == (char *) 0)
4934 object_name = optarg;
4935 else
4936 had_errors++;
4937 break;
4938
4939 case 'v':
4940 version++;
4941 break;
4942 }
4943
4944 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4945 obj_in_name = argv[--argc];
4946
4947 if (object_name == (char *) 0 && optind <= argc - 2)
4948 object_name = argv[--argc];
4949
4950 /* If there is an output name, but no input name use
4951 the same file for both, deleting the name between
4952 opening it for input and opening it for output. */
4953 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4954 {
4955 obj_in_name = object_name;
4956 delete_input = 1;
4957 }
4958
4959 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4960 {
4961 fprintf (stderr, "Calling Sequence:\n");
4962 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4963 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4964 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4965 fprintf (stderr, "\n");
4966 fprintf (stderr, "Debug levels are:\n");
4967 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4968 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4969 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4970 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4971 return 1;
4972 }
4973
4974
4975 if (version)
4976 {
4977 fprintf (stderr, "mips-tfile version %s", version_string);
4978 #ifdef TARGET_VERSION
4979 TARGET_VERSION;
4980 #endif
4981 fputc ('\n', stderr);
4982 }
4983
4984 if (obj_in_name == (char *) 0)
4985 obj_in_name = object_name;
4986
4987 if (rename_output && rename (object_name, obj_in_name) != 0)
4988 {
4989 char *buffer = (char *) allocate_multiple_pages (4);
4990 int len;
4991 int len2;
4992 int in_fd;
4993 int out_fd;
4994
4995 /* Rename failed, copy input file */
4996 in_fd = open (object_name, O_RDONLY, 0666);
4997 if (in_fd < 0)
4998 pfatal_with_name (object_name);
4999
5000 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
5001 if (out_fd < 0)
5002 pfatal_with_name (obj_in_name);
5003
5004 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5005 {
5006 len2 = write (out_fd, buffer, len);
5007 if (len2 < 0)
5008 pfatal_with_name (object_name);
5009
5010 if (len != len2)
5011 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5012 }
5013
5014 free_multiple_pages ((page_t *)buffer, 4);
5015
5016 if (len < 0)
5017 pfatal_with_name (object_name);
5018
5019 if (close (in_fd) < 0)
5020 pfatal_with_name (object_name);
5021
5022 if (close (out_fd) < 0)
5023 pfatal_with_name (obj_in_name);
5024 }
5025
5026 /* Must open input before output, since the output may be the same file, and
5027 we need to get the input handle before truncating it. */
5028 obj_in_stream = fopen (obj_in_name, "r");
5029 if (obj_in_stream == (FILE *) 0)
5030 pfatal_with_name (obj_in_name);
5031
5032 if (delete_input && unlink (obj_in_name) != 0)
5033 pfatal_with_name (obj_in_name);
5034
5035 object_stream = fopen (object_name, "w");
5036 if (object_stream == (FILE *) 0)
5037 pfatal_with_name (object_name);
5038
5039 if (strcmp (argv[optind], "-") != 0)
5040 {
5041 input_name = argv[optind];
5042 if (freopen (argv[optind], "r", stdin) != stdin)
5043 pfatal_with_name (argv[optind]);
5044 }
5045
5046 copy_object (); /* scan & copy object file */
5047 parse_input (); /* scan all of input */
5048
5049 update_headers (); /* write out tfile */
5050 write_object ();
5051
5052 if (debug)
5053 {
5054 fprintf (stderr, "\n\tAllocation summary:\n\n");
5055 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5056 if (alloc_counts[i].total_alloc)
5057 {
5058 fprintf (stderr,
5059 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5060 alloc_counts[i].alloc_name,
5061 alloc_counts[i].total_alloc,
5062 alloc_counts[i].total_free,
5063 alloc_counts[i].total_pages);
5064 }
5065 }
5066
5067 return (had_errors) ? 1 : 0;
5068 }
5069
5070 \f
5071 /* Catch a signal and exit without dumping core. */
5072
5073 STATIC void
5074 catch_signal (signum)
5075 int signum;
5076 {
5077 (void) signal (signum, SIG_DFL); /* just in case... */
5078 #ifdef NO_SYS_SIGLIST
5079 fatal ("caught signal");
5080 #else
5081 fatal (sys_siglist[signum]);
5082 #endif
5083 }
5084
5085 /* Print a fatal error message. NAME is the text.
5086 Also include a system error message based on `errno'. */
5087
5088 void
5089 pfatal_with_name (msg)
5090 char *msg;
5091 {
5092 int save_errno = errno; /* just in case.... */
5093 if (line_number > 0)
5094 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5095 else
5096 fprintf (stderr, "%s:", progname);
5097
5098 errno = save_errno;
5099 if (errno == 0)
5100 fprintf (stderr, "[errno = 0] %s\n", msg);
5101 else
5102 perror (msg);
5103
5104 exit (1);
5105 }
5106
5107 \f
5108 /* Procedure to abort with an out of bounds error message. It has
5109 type int, so it can be used with an ?: expression within the
5110 ORIG_xxx macros, but the function never returns. */
5111
5112 static int
5113 out_of_bounds (indx, max, str, prog_line)
5114 symint_t indx; /* index that is out of bounds */
5115 symint_t max; /* maximum index */
5116 const char *str; /* string to print out */
5117 int prog_line; /* line number within mips-tfile.c */
5118 {
5119 if (indx < max) /* just in case */
5120 return 0;
5121
5122 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5123 progname, input_name, line_number, indx, str, max, prog_line);
5124
5125 exit (1);
5126 return 0; /* turn off warning messages */
5127 }
5128
5129 \f
5130 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5131 like sbrk's behind it's back (or sbrk isn't available). If we use
5132 sbrk, we assume it gives us zeroed pages. */
5133
5134 #ifndef MALLOC_CHECK
5135 #ifdef USE_MALLOC
5136
5137 STATIC page_t *
5138 allocate_cluster (npages)
5139 Size_t npages;
5140 {
5141 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5142
5143 if (value == 0)
5144 fatal ("Virtual memory exhausted.");
5145
5146 if (debug > 3)
5147 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5148
5149 return value;
5150 }
5151
5152 #else /* USE_MALLOC */
5153
5154 STATIC page_t *
5155 allocate_cluster (npages)
5156 Size_t npages;
5157 {
5158 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5159 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5160
5161 if (offset != 0) /* align to a page boundary */
5162 {
5163 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5164 pfatal_with_name ("allocate_cluster");
5165
5166 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5167 }
5168
5169 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5170 pfatal_with_name ("allocate_cluster");
5171
5172 if (debug > 3)
5173 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5174
5175 return ptr;
5176 }
5177
5178 #endif /* USE_MALLOC */
5179
5180
5181 static page_t *cluster_ptr = NULL;
5182 static unsigned pages_left = 0;
5183
5184 #endif /* MALLOC_CHECK */
5185
5186
5187 /* Allocate some pages (which is initialized to 0). */
5188
5189 STATIC page_t *
5190 allocate_multiple_pages (npages)
5191 Size_t npages;
5192 {
5193 #ifndef MALLOC_CHECK
5194 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5195 {
5196 pages_left = MAX_CLUSTER_PAGES;
5197 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5198 }
5199
5200 if (npages <= pages_left)
5201 {
5202 page_t *ptr = cluster_ptr;
5203 cluster_ptr += npages;
5204 pages_left -= npages;
5205 return ptr;
5206 }
5207
5208 return allocate_cluster (npages);
5209
5210 #else /* MALLOC_CHECK */
5211 return (page_t *) xcalloc (npages, PAGE_SIZE);
5212
5213 #endif /* MALLOC_CHECK */
5214 }
5215
5216
5217 /* Release some pages. */
5218
5219 STATIC void
5220 free_multiple_pages (page_ptr, npages)
5221 page_t *page_ptr;
5222 Size_t npages;
5223 {
5224 #ifndef MALLOC_CHECK
5225 if (pages_left == 0)
5226 {
5227 cluster_ptr = page_ptr;
5228 pages_left = npages;
5229 }
5230
5231 else if ((page_ptr + npages) == cluster_ptr)
5232 {
5233 cluster_ptr -= npages;
5234 pages_left += npages;
5235 }
5236
5237 /* otherwise the page is not freed. If more than call is
5238 done, we probably should worry about it, but at present,
5239 the free pages is done right after an allocate. */
5240
5241 #else /* MALLOC_CHECK */
5242 free ((char *) page_ptr);
5243
5244 #endif /* MALLOC_CHECK */
5245 }
5246
5247
5248 /* Allocate one page (which is initialized to 0). */
5249
5250 STATIC page_t *
5251 allocate_page __proto((void))
5252 {
5253 #ifndef MALLOC_CHECK
5254 if (pages_left == 0)
5255 {
5256 pages_left = MAX_CLUSTER_PAGES;
5257 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5258 }
5259
5260 pages_left--;
5261 return cluster_ptr++;
5262
5263 #else /* MALLOC_CHECK */
5264 return (page_t *) xcalloc (1, PAGE_SIZE);
5265
5266 #endif /* MALLOC_CHECK */
5267 }
5268
5269 \f
5270 /* Allocate scoping information. */
5271
5272 STATIC scope_t *
5273 allocate_scope __proto((void))
5274 {
5275 register scope_t *ptr;
5276 static scope_t initial_scope;
5277
5278 #ifndef MALLOC_CHECK
5279 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5280 if (ptr != (scope_t *) 0)
5281 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5282
5283 else
5284 {
5285 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5286 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5287
5288 if (unallocated == 0)
5289 {
5290 unallocated = PAGE_SIZE / sizeof (scope_t);
5291 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5292 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5293 }
5294
5295 ptr = &cur_page->scope[ --unallocated ];
5296 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5297 }
5298
5299 #else
5300 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5301
5302 #endif
5303
5304 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5305 *ptr = initial_scope;
5306 return ptr;
5307 }
5308
5309 /* Free scoping information. */
5310
5311 STATIC void
5312 free_scope (ptr)
5313 scope_t *ptr;
5314 {
5315 alloc_counts[ (int)alloc_type_scope ].total_free++;
5316
5317 #ifndef MALLOC_CHECK
5318 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5319 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5320
5321 #else
5322 xfree ((PTR_T) ptr);
5323 #endif
5324
5325 }
5326
5327 \f
5328 /* Allocate links for pages in a virtual array. */
5329
5330 STATIC vlinks_t *
5331 allocate_vlinks __proto((void))
5332 {
5333 register vlinks_t *ptr;
5334 static vlinks_t initial_vlinks;
5335
5336 #ifndef MALLOC_CHECK
5337 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5338 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5339
5340 if (unallocated == 0)
5341 {
5342 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5343 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5344 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5345 }
5346
5347 ptr = &cur_page->vlinks[ --unallocated ];
5348 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5349
5350 #else
5351 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5352
5353 #endif
5354
5355 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5356 *ptr = initial_vlinks;
5357 return ptr;
5358 }
5359
5360 \f
5361 /* Allocate string hash buckets. */
5362
5363 STATIC shash_t *
5364 allocate_shash __proto((void))
5365 {
5366 register shash_t *ptr;
5367 static shash_t initial_shash;
5368
5369 #ifndef MALLOC_CHECK
5370 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5371 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5372
5373 if (unallocated == 0)
5374 {
5375 unallocated = PAGE_SIZE / sizeof (shash_t);
5376 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5377 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5378 }
5379
5380 ptr = &cur_page->shash[ --unallocated ];
5381 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5382
5383 #else
5384 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5385
5386 #endif
5387
5388 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5389 *ptr = initial_shash;
5390 return ptr;
5391 }
5392
5393 \f
5394 /* Allocate type hash buckets. */
5395
5396 STATIC thash_t *
5397 allocate_thash __proto((void))
5398 {
5399 register thash_t *ptr;
5400 static thash_t initial_thash;
5401
5402 #ifndef MALLOC_CHECK
5403 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5404 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5405
5406 if (unallocated == 0)
5407 {
5408 unallocated = PAGE_SIZE / sizeof (thash_t);
5409 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5410 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5411 }
5412
5413 ptr = &cur_page->thash[ --unallocated ];
5414 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5415
5416 #else
5417 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5418
5419 #endif
5420
5421 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5422 *ptr = initial_thash;
5423 return ptr;
5424 }
5425
5426 \f
5427 /* Allocate structure, union, or enum tag information. */
5428
5429 STATIC tag_t *
5430 allocate_tag __proto((void))
5431 {
5432 register tag_t *ptr;
5433 static tag_t initial_tag;
5434
5435 #ifndef MALLOC_CHECK
5436 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5437 if (ptr != (tag_t *) 0)
5438 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5439
5440 else
5441 {
5442 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5443 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5444
5445 if (unallocated == 0)
5446 {
5447 unallocated = PAGE_SIZE / sizeof (tag_t);
5448 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5449 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5450 }
5451
5452 ptr = &cur_page->tag[ --unallocated ];
5453 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5454 }
5455
5456 #else
5457 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5458
5459 #endif
5460
5461 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5462 *ptr = initial_tag;
5463 return ptr;
5464 }
5465
5466 /* Free scoping information. */
5467
5468 STATIC void
5469 free_tag (ptr)
5470 tag_t *ptr;
5471 {
5472 alloc_counts[ (int)alloc_type_tag ].total_free++;
5473
5474 #ifndef MALLOC_CHECK
5475 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5476 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5477
5478 #else
5479 xfree ((PTR_T) ptr);
5480 #endif
5481
5482 }
5483
5484 \f
5485 /* Allocate forward reference to a yet unknown tag. */
5486
5487 STATIC forward_t *
5488 allocate_forward __proto((void))
5489 {
5490 register forward_t *ptr;
5491 static forward_t initial_forward;
5492
5493 #ifndef MALLOC_CHECK
5494 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5495 if (ptr != (forward_t *) 0)
5496 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5497
5498 else
5499 {
5500 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5501 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5502
5503 if (unallocated == 0)
5504 {
5505 unallocated = PAGE_SIZE / sizeof (forward_t);
5506 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5507 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5508 }
5509
5510 ptr = &cur_page->forward[ --unallocated ];
5511 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5512 }
5513
5514 #else
5515 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5516
5517 #endif
5518
5519 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5520 *ptr = initial_forward;
5521 return ptr;
5522 }
5523
5524 /* Free scoping information. */
5525
5526 STATIC void
5527 free_forward (ptr)
5528 forward_t *ptr;
5529 {
5530 alloc_counts[ (int)alloc_type_forward ].total_free++;
5531
5532 #ifndef MALLOC_CHECK
5533 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5534 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5535
5536 #else
5537 xfree ((PTR_T) ptr);
5538 #endif
5539
5540 }
5541
5542 \f
5543 /* Allocate head of type hash list. */
5544
5545 STATIC thead_t *
5546 allocate_thead __proto((void))
5547 {
5548 register thead_t *ptr;
5549 static thead_t initial_thead;
5550
5551 #ifndef MALLOC_CHECK
5552 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5553 if (ptr != (thead_t *) 0)
5554 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5555
5556 else
5557 {
5558 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5559 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5560
5561 if (unallocated == 0)
5562 {
5563 unallocated = PAGE_SIZE / sizeof (thead_t);
5564 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5565 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5566 }
5567
5568 ptr = &cur_page->thead[ --unallocated ];
5569 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5570 }
5571
5572 #else
5573 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5574
5575 #endif
5576
5577 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5578 *ptr = initial_thead;
5579 return ptr;
5580 }
5581
5582 /* Free scoping information. */
5583
5584 STATIC void
5585 free_thead (ptr)
5586 thead_t *ptr;
5587 {
5588 alloc_counts[ (int)alloc_type_thead ].total_free++;
5589
5590 #ifndef MALLOC_CHECK
5591 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5592 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5593
5594 #else
5595 xfree ((PTR_T) ptr);
5596 #endif
5597
5598 }
5599
5600 #endif /* MIPS_DEBUGGING_INFO */
5601
5602 \f
5603 #ifdef HAVE_VPRINTF
5604
5605 /* Output an error message and exit */
5606
5607 /*VARARGS*/
5608 void
5609 fatal VPROTO((const char *format, ...))
5610 {
5611 #ifndef __STDC__
5612 char *format;
5613 #endif
5614 va_list ap;
5615
5616 VA_START (ap, format);
5617
5618 #ifndef __STDC__
5619 format = va_arg (ap, char *);
5620 #endif
5621
5622 if (line_number > 0)
5623 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5624 else
5625 fprintf (stderr, "%s:", progname);
5626
5627 vfprintf (stderr, format, ap);
5628 va_end (ap);
5629 fprintf (stderr, "\n");
5630 if (line_number > 0)
5631 fprintf (stderr, "line:\t%s\n", cur_line_start);
5632
5633 saber_stop ();
5634 exit (1);
5635 }
5636
5637 /*VARARGS*/
5638 void
5639 error VPROTO((const char *format, ...))
5640 {
5641 #ifndef __STDC__
5642 char *format;
5643 #endif
5644 va_list ap;
5645
5646 VA_START (ap, format);
5647
5648 #ifndef __STDC__
5649 format = va_arg (ap, char *);
5650 #endif
5651
5652 if (line_number > 0)
5653 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5654 else
5655 fprintf (stderr, "%s:", progname);
5656
5657 vfprintf (stderr, format, ap);
5658 fprintf (stderr, "\n");
5659 if (line_number > 0)
5660 fprintf (stderr, "line:\t%s\n", cur_line_start);
5661
5662 had_errors++;
5663 va_end (ap);
5664
5665 saber_stop ();
5666 }
5667
5668 #else /* not HAVE_VPRINTF */
5669
5670 void
5671 fatal (msg, arg1, arg2)
5672 char *msg, *arg1, *arg2;
5673 {
5674 error (msg, arg1, arg2);
5675 exit (1);
5676 }
5677
5678 void
5679 error (msg, arg1, arg2)
5680 char *msg, *arg1, *arg2;
5681 {
5682 fprintf (stderr, "%s: ", progname);
5683 fprintf (stderr, msg, arg1, arg2);
5684 fprintf (stderr, "\n");
5685 }
5686
5687 #endif /* not HAVE_VPRINTF */
5688
5689 /* More 'friendly' abort that prints the line and file.
5690 config.h can #define abort fancy_abort if you like that sort of thing. */
5691
5692 void
5693 fancy_abort ()
5694 {
5695 fatal ("Internal abort.");
5696 }
5697 \f
5698
5699 /* When `malloc.c' is compiled with `rcheck' defined,
5700 it calls this function to report clobberage. */
5701
5702 void
5703 botch (s)
5704 const char *s;
5705 {
5706 fatal (s);
5707 }
5708
5709 /* Same as `malloc' but report error if no memory available. */
5710
5711 PTR_T
5712 xmalloc (size)
5713 Size_t size;
5714 {
5715 register PTR_T value = malloc (size);
5716 if (value == 0)
5717 fatal ("Virtual memory exhausted.");
5718
5719 if (debug > 3)
5720 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5721
5722 return value;
5723 }
5724
5725 /* Same as `calloc' but report error if no memory available. */
5726
5727 PTR_T
5728 xcalloc (size1, size2)
5729 Size_t size1, size2;
5730 {
5731 register PTR_T value = calloc (size1, size2);
5732 if (value == 0)
5733 fatal ("Virtual memory exhausted.");
5734
5735 if (debug > 3)
5736 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5737 value, size1, size2, size1+size2);
5738
5739 return value;
5740 }
5741
5742 /* Same as `realloc' but report error if no memory available. */
5743
5744 PTR_T
5745 xrealloc (ptr, size)
5746 PTR_T ptr;
5747 Size_t size;
5748 {
5749 register PTR_T result = realloc (ptr, size);
5750 if (!result)
5751 fatal ("Virtual memory exhausted.");
5752
5753 if (debug > 3)
5754 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5755 result, size, ptr);
5756
5757 return result;
5758 }
5759
5760 void
5761 xfree (ptr)
5762 PTR_T ptr;
5763 {
5764 if (debug > 3)
5765 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5766
5767 free (ptr);
5768 }
5769
5770 \f
5771 /* Define our own index/rindex, since the local and global symbol
5772 structures as defined by MIPS has an 'index' field. */
5773
5774 STATIC char *
5775 local_index (str, sentinel)
5776 const char *str;
5777 int sentinel;
5778 {
5779 int ch;
5780
5781 for ( ; (ch = *str) != sentinel; str++)
5782 {
5783 if (ch == '\0')
5784 return (char *) 0;
5785 }
5786
5787 return (char *)str;
5788 }
5789
5790 STATIC char *
5791 local_rindex (str, sentinel)
5792 const char *str;
5793 int sentinel;
5794 {
5795 int ch;
5796 const char *ret = (const char *) 0;
5797
5798 for ( ; (ch = *str) != '\0'; str++)
5799 {
5800 if (ch == sentinel)
5801 ret = str;
5802 }
5803
5804 return (char *)ret;
5805 }