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Undo some of the index changes, and write our own index/rindex.
[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 Contributed by: Michael Meissner, meissner@osf.org
6 Copyright (C) 1991 Free Software Foundation, Inc.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24 \f
25 /* Here is a brief description of the MIPS ECOFF symbol table. The
26 MIPS symbol table has the following pieces:
27
28 Symbolic Header
29 |
30 +-- Auxiliary Symbols
31 |
32 +-- Dense number table
33 |
34 +-- Optimizer Symbols
35 |
36 +-- External Strings
37 |
38 +-- External Symbols
39 |
40 +-- Relative file descriptors
41 |
42 +-- File table
43 |
44 +-- Procedure table
45 |
46 +-- Line number table
47 |
48 +-- Local Strings
49 |
50 +-- Local Symbols
51
52 The symbolic header points to each of the other tables, and also
53 contains the number of entries. It also contains a magic number
54 and MIPS compiler version number, such as 2.0.
55
56 The auxiliary table is a series of 32 bit integers, that are
57 referenced as needed from the local symbol table. Unlike standard
58 COFF, the aux. information does not follow the symbol that uses
59 it, but rather is a separate table. In theory, this would allow
60 the MIPS compilers to collapse duplicate aux. entries, but I've not
61 noticed this happening with the 1.31 compiler suite. The different
62 types of aux. entries are:
63
64 1) dnLow: Low bound on array dimension.
65
66 2) dnHigh: High bound on array dimension.
67
68 3) isym: Index to the local symbol which is the start of the
69 function for the end of function first aux. entry.
70
71 4) width: Width of structures and bitfields.
72
73 5) count: Count of ranges for variant part.
74
75 6) rndx: A relative index into the symbol table. The relative
76 index field has two parts: rfd which is a pointer into the
77 relative file index table or ST_RFDESCAPE which says the next
78 aux. entry is the file number, and index: which is the pointer
79 into the local symbol within a given file table. This is for
80 things like references to types defined in another file.
81
82 7) Type information: This is like the COFF type bits, except it
83 is 32 bits instead of 16; they still have room to add new
84 basic types; and they can handle more than 6 levels of array,
85 pointer, function, etc. Each type information field contains
86 the following structure members:
87
88 a) fBitfield: a bit that says this is a bitfield, and the
89 size in bits follows as the next aux. entry.
90
91 b) continued: a bit that says the next aux. entry is a
92 continuation of the current type information (in case
93 there are more than 6 levels of array/ptr/function).
94
95 c) bt: an integer containing the base type before adding
96 array, pointer, function, etc. qualifiers. The
97 current base types that I have documentation for are:
98
99 btNil -- undefined
100 btAdr -- address - integer same size as ptr
101 btChar -- character
102 btUChar -- unsigned character
103 btShort -- short
104 btUShort -- unsigned short
105 btInt -- int
106 btUInt -- unsigned int
107 btLong -- long
108 btULong -- unsigned long
109 btFloat -- float (real)
110 btDouble -- Double (real)
111 btStruct -- Structure (Record)
112 btUnion -- Union (variant)
113 btEnum -- Enumerated
114 btTypedef -- defined via a typedef isymRef
115 btRange -- subrange of int
116 btSet -- pascal sets
117 btComplex -- fortran complex
118 btDComplex -- fortran double complex
119 btIndirect -- forward or unnamed typedef
120 btFixedDec -- Fixed Decimal
121 btFloatDec -- Float Decimal
122 btString -- Varying Length Character String
123 btBit -- Aligned Bit String
124 btPicture -- Picture
125 btVoid -- Void (MIPS cc revision >= 2.00)
126
127 d) tq0 - tq5: type qualifier fields as needed. The
128 current type qualifier fields I have documentation for
129 are:
130
131 tqNil -- no more qualifiers
132 tqPtr -- pointer
133 tqProc -- procedure
134 tqArray -- array
135 tqFar -- 8086 far pointers
136 tqVol -- volatile
137
138
139 The dense number table is used in the front ends, and disappears by
140 the time the .o is created.
141
142 With the 1.31 compiler suite, the optimization symbols don't seem
143 to be used as far as I can tell.
144
145 The linker is the first entity that creates the relative file
146 descriptor table, and I believe it is used so that the individual
147 file table pointers don't have to be rewritten when the objects are
148 merged together into the program file.
149
150 Unlike COFF, the basic symbol & string tables are split into
151 external and local symbols/strings. The relocation information
152 only goes off of the external symbol table, and the debug
153 information only goes off of the internal symbol table. The
154 external symbols can have links to an appropriate file index and
155 symbol within the file to give it the appropriate type information.
156 Because of this, the external symbols are actually larger than the
157 internal symbols (to contain the link information), and contain the
158 local symbol structure as a member, though this member is not the
159 first member of the external symbol structure (!). I suspect this
160 split is to make strip easier to deal with.
161
162 Each file table has offsets for where the line numbers, local
163 strings, local symbols, and procedure table starts from within the
164 global tables, and the indexs are reset to 0 for each of those
165 tables for the file.
166
167 The procedure table contains the binary equivalents of the .ent
168 (start of the function address), .frame (what register is the
169 virtual frame pointer, constant offset from the register to obtain
170 the VFP, and what register holds the return address), .mask/.fmask
171 (bitmask of saved registers, and where the first register is stored
172 relative to the VFP) assembler directives. It also contains the
173 low and high bounds of the line numbers if debugging is turned on.
174
175 The line number table is a compressed form of the normal COFF line
176 table. Each line number entry is either 1 or 3 bytes long, and
177 contains a signed delta from the previous line, and an unsigned
178 count of the number of instructions this statement takes.
179
180 The local symbol table contains the following fields:
181
182 1) iss: index to the local string table giving the name of the
183 symbol.
184
185 2) value: value of the symbol (address, register number, etc.).
186
187 3) st: symbol type. The current symbol types are:
188
189 stNil -- Nuthin' special
190 stGlobal -- external symbol
191 stStatic -- static
192 stParam -- procedure argument
193 stLocal -- local variable
194 stLabel -- label
195 stProc -- External Procedure
196 stBlock -- beginning of block
197 stEnd -- end (of anything)
198 stMember -- member (of anything)
199 stTypedef -- type definition
200 stFile -- file name
201 stRegReloc -- register relocation
202 stForward -- forwarding address
203 stStaticProc -- Static procedure
204 stConstant -- const
205
206 4) sc: storage class. The current storage classes are:
207
208 scText -- text symbol
209 scData -- initialized data symbol
210 scBss -- un-initialized data symbol
211 scRegister -- value of symbol is register number
212 scAbs -- value of symbol is absolute
213 scUndefined -- who knows?
214 scCdbLocal -- variable's value is IN se->va.??
215 scBits -- this is a bit field
216 scCdbSystem -- value is IN debugger's address space
217 scRegImage -- register value saved on stack
218 scInfo -- symbol contains debugger information
219 scUserStruct -- addr in struct user for current process
220 scSData -- load time only small data
221 scSBss -- load time only small common
222 scRData -- load time only read only data
223 scVar -- Var parameter (fortranpascal)
224 scCommon -- common variable
225 scSCommon -- small common
226 scVarRegister -- Var parameter in a register
227 scVariant -- Variant record
228 scSUndefined -- small undefined(external) data
229 scInit -- .init section symbol
230
231 5) index: pointer to a local symbol or aux. entry.
232
233
234
235 For the following program:
236
237 #include <stdio.h>
238
239 main(){
240 printf("Hello World!\n");
241 return 0;
242 }
243
244 Mips-tdump produces the following information:
245
246 Global file header:
247 magic number 0x162
248 # sections 2
249 timestamp 645311799, Wed Jun 13 17:16:39 1990
250 symbolic header offset 284
251 symbolic header size 96
252 optional header 56
253 flags 0x0
254
255 Symbolic header, magic number = 0x7009, vstamp = 1.31:
256
257 Info Offset Number Bytes
258 ==== ====== ====== =====
259
260 Line numbers 380 4 4 [13]
261 Dense numbers 0 0 0
262 Procedures Tables 384 1 52
263 Local Symbols 436 16 192
264 Optimization Symbols 0 0 0
265 Auxiliary Symbols 628 39 156
266 Local Strings 784 80 80
267 External Strings 864 144 144
268 File Tables 1008 2 144
269 Relative Files 0 0 0
270 External Symbols 1152 20 320
271
272 File #0, "hello2.c"
273
274 Name index = 1 Readin = No
275 Merge = No Endian = LITTLE
276 Debug level = G2 Language = C
277 Adr = 0x00000000
278
279 Info Start Number Size Offset
280 ==== ===== ====== ==== ======
281 Local strings 0 15 15 784
282 Local symbols 0 6 72 436
283 Line numbers 0 13 13 380
284 Optimization symbols 0 0 0 0
285 Procedures 0 1 52 384
286 Auxiliary symbols 0 14 56 628
287 Relative Files 0 0 0 0
288
289 There are 6 local symbols, starting at 436
290
291 Symbol# 0: "hello2.c"
292 End+1 symbol = 6
293 String index = 1
294 Storage class = Text Index = 6
295 Symbol type = File Value = 0
296
297 Symbol# 1: "main"
298 End+1 symbol = 5
299 Type = int
300 String index = 10
301 Storage class = Text Index = 12
302 Symbol type = Proc Value = 0
303
304 Symbol# 2: ""
305 End+1 symbol = 4
306 String index = 0
307 Storage class = Text Index = 4
308 Symbol type = Block Value = 8
309
310 Symbol# 3: ""
311 First symbol = 2
312 String index = 0
313 Storage class = Text Index = 2
314 Symbol type = End Value = 28
315
316 Symbol# 4: "main"
317 First symbol = 1
318 String index = 10
319 Storage class = Text Index = 1
320 Symbol type = End Value = 52
321
322 Symbol# 5: "hello2.c"
323 First symbol = 0
324 String index = 1
325 Storage class = Text Index = 0
326 Symbol type = End Value = 0
327
328 There are 14 auxiliary table entries, starting at 628.
329
330 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344
345 There are 1 procedure descriptor entries, starting at 0.
346
347 Procedure descriptor 0:
348 Name index = 10 Name = "main"
349 .mask 0x80000000,-4 .fmask 0x00000000,0
350 .frame $29,24,$31
351 Opt. start = -1 Symbols start = 1
352 First line # = 3 Last line # = 6
353 Line Offset = 0 Address = 0x00000000
354
355 There are 4 bytes holding line numbers, starting at 380.
356 Line 3, delta 0, count 2
357 Line 4, delta 1, count 3
358 Line 5, delta 1, count 2
359 Line 6, delta 1, count 6
360
361 File #1, "/usr/include/stdio.h"
362
363 Name index = 1 Readin = No
364 Merge = Yes Endian = LITTLE
365 Debug level = G2 Language = C
366 Adr = 0x00000000
367
368 Info Start Number Size Offset
369 ==== ===== ====== ==== ======
370 Local strings 15 65 65 799
371 Local symbols 6 10 120 508
372 Line numbers 0 0 0 380
373 Optimization symbols 0 0 0 0
374 Procedures 1 0 0 436
375 Auxiliary symbols 14 25 100 684
376 Relative Files 0 0 0 0
377
378 There are 10 local symbols, starting at 442
379
380 Symbol# 0: "/usr/include/stdio.h"
381 End+1 symbol = 10
382 String index = 1
383 Storage class = Text Index = 10
384 Symbol type = File Value = 0
385
386 Symbol# 1: "_iobuf"
387 End+1 symbol = 9
388 String index = 22
389 Storage class = Info Index = 9
390 Symbol type = Block Value = 20
391
392 Symbol# 2: "_cnt"
393 Type = int
394 String index = 29
395 Storage class = Info Index = 4
396 Symbol type = Member Value = 0
397
398 Symbol# 3: "_ptr"
399 Type = ptr to char
400 String index = 34
401 Storage class = Info Index = 15
402 Symbol type = Member Value = 32
403
404 Symbol# 4: "_base"
405 Type = ptr to char
406 String index = 39
407 Storage class = Info Index = 16
408 Symbol type = Member Value = 64
409
410 Symbol# 5: "_bufsiz"
411 Type = int
412 String index = 45
413 Storage class = Info Index = 4
414 Symbol type = Member Value = 96
415
416 Symbol# 6: "_flag"
417 Type = short
418 String index = 53
419 Storage class = Info Index = 3
420 Symbol type = Member Value = 128
421
422 Symbol# 7: "_file"
423 Type = char
424 String index = 59
425 Storage class = Info Index = 2
426 Symbol type = Member Value = 144
427
428 Symbol# 8: ""
429 First symbol = 1
430 String index = 0
431 Storage class = Info Index = 1
432 Symbol type = End Value = 0
433
434 Symbol# 9: "/usr/include/stdio.h"
435 First symbol = 0
436 String index = 1
437 Storage class = Text Index = 0
438 Symbol type = End Value = 0
439
440 There are 25 auxiliary table entries, starting at 642.
441
442 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467
468 There are 0 procedure descriptor entries, starting at 1.
469
470 There are 20 external symbols, starting at 1152
471
472 Symbol# 0: "_iob"
473 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474 String index = 0 Ifd = 1
475 Storage class = Nil Index = 17
476 Symbol type = Global Value = 60
477
478 Symbol# 1: "fopen"
479 String index = 5 Ifd = 1
480 Storage class = Nil Index = 1048575
481 Symbol type = Proc Value = 0
482
483 Symbol# 2: "fdopen"
484 String index = 11 Ifd = 1
485 Storage class = Nil Index = 1048575
486 Symbol type = Proc Value = 0
487
488 Symbol# 3: "freopen"
489 String index = 18 Ifd = 1
490 Storage class = Nil Index = 1048575
491 Symbol type = Proc Value = 0
492
493 Symbol# 4: "popen"
494 String index = 26 Ifd = 1
495 Storage class = Nil Index = 1048575
496 Symbol type = Proc Value = 0
497
498 Symbol# 5: "tmpfile"
499 String index = 32 Ifd = 1
500 Storage class = Nil Index = 1048575
501 Symbol type = Proc Value = 0
502
503 Symbol# 6: "ftell"
504 String index = 40 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 7: "rewind"
509 String index = 46 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 8: "setbuf"
514 String index = 53 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 9: "setbuffer"
519 String index = 60 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 10: "setlinebuf"
524 String index = 70 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 11: "fgets"
529 String index = 81 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 12: "gets"
534 String index = 87 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 13: "ctermid"
539 String index = 92 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 14: "cuserid"
544 String index = 100 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 15: "tempnam"
549 String index = 108 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 16: "tmpnam"
554 String index = 116 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 17: "sprintf"
559 String index = 123 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 18: "main"
564 Type = int
565 String index = 131 Ifd = 0
566 Storage class = Text Index = 1
567 Symbol type = Proc Value = 0
568
569 Symbol# 19: "printf"
570 String index = 136 Ifd = 0
571 Storage class = Undefined Index = 1048575
572 Symbol type = Proc Value = 0
573
574 The following auxiliary table entries were unused:
575
576 #0 0 0x00000000 void
577 #2 8 0x00000008 char
578 #3 16 0x00000010 short
579 #4 24 0x00000018 int
580 #5 32 0x00000020 long
581 #6 40 0x00000028 float
582 #7 44 0x0000002c double
583 #8 12 0x0000000c unsigned char
584 #9 20 0x00000014 unsigned short
585 #10 28 0x0000001c unsigned int
586 #11 36 0x00000024 unsigned long
587 #14 0 0x00000000 void
588 #15 24 0x00000018 int
589 #19 32 0x00000020 long
590 #20 40 0x00000028 float
591 #21 44 0x0000002c double
592 #22 12 0x0000000c unsigned char
593 #23 20 0x00000014 unsigned short
594 #24 28 0x0000001c unsigned int
595 #25 36 0x00000024 unsigned long
596 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597
598 */
599 \f
600
601 #include "gvarargs.h"
602 #include "config.h"
603 #include <stdio.h>
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #ifdef __STDC__
614 typedef void *PTR_T;
615 typedef const void *CPTR_T;
616 #define __proto(x) x
617 #else
618
619 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
620 typedef void *PTR_T;
621 typedef void *CPTR_T;
622
623 #else
624 typedef char *PTR_T; /* Ultrix 3.1 */
625 typedef char *CPTR_T;
626 #endif
627
628 #define __proto(x) ()
629 #define const
630 #endif
631
632 /* Do to size_t being defined in sys/types.h and different
633 in stddef.h, we have to do this by hand..... Note, these
634 types are correct for MIPS based systems, and may not be
635 correct for other systems. Ultrix 4.0 and Silicon Graphics
636 have this fixed, but since the following is correct, and
637 the fact that including stddef.h gets you GCC's version
638 instead of the standard one it's not worth it to fix it. */
639
640 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
641 #define Size_t long unsigned int
642 #else
643 #define Size_t unsigned int
644 #endif
645 #define Ptrdiff_t int
646
647 /* The following might be called from obstack or malloc,
648 so they can't be static. */
649
650 extern void pfatal_with_name
651 __proto((char *));
652 extern void fancy_abort __proto((void));
653 void botch __proto((const char *));
654 extern PTR_T xmalloc __proto((Size_t));
655 extern PTR_T xcalloc __proto((Size_t, Size_t));
656 extern PTR_T xrealloc __proto((PTR_T, Size_t));
657 extern void xfree __proto((PTR_T));
658
659 extern void fatal(); /* can't use prototypes here */
660 extern void error();
661
662 \f
663 #ifndef MIPS_DEBUGGING_INFO
664
665 static int line_number;
666 static int cur_line_start;
667 static int debug;
668 static int had_errors;
669 static char *progname;
670 static char *input_name;
671
672 int
673 main ()
674 {
675 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
676 exit (1);
677 }
678
679 #else /* MIPS_DEBUGGING defined */
680 \f
681 /* The local and global symbols have a field index, so undo any defines
682 of index -> strchr and rindex -> strrchr. */
683
684 #undef rindex
685 #undef index
686
687 #include <sys/types.h>
688 #include <a.out.h>
689 #include <string.h>
690 #include <ctype.h>
691 #include <fcntl.h>
692 #include <errno.h>
693 #include <signal.h>
694 #include <sys/stat.h>
695
696 #if defined (USG) || defined (NO_STAB_H)
697 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
698 #else
699 #include <stab.h> /* On BSD, use the system's stab.h. */
700 #endif /* not USG */
701
702 #ifdef __GNU_STAB__
703 #define STAB_CODE_TYPE enum __stab_debug_code
704 #else
705 #define STAB_CODE_TYPE int
706 #endif
707
708 #ifdef _OSF_SOURCE
709 #define HAS_STDLIB_H
710 #define HAS_UNISTD_H
711 #endif
712
713 #ifdef HAS_STDLIB_H
714 #include <stdlib.h>
715 #endif
716
717 #ifdef HAS_UNISTD_H
718 #include <unistd.h>
719 #endif
720
721 #ifndef errno
722 extern int errno; /* MIPS errno.h doesn't declare this */
723 #endif
724
725 #ifndef MALLOC_CHECK
726 #ifdef __SABER__
727 #define MALLOC_CHECK
728 #endif
729 #endif
730
731 #define IS_ASM_IDENT(ch) \
732 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
733
734 \f
735 /* Redefinition of of storage classes as an enumeration for better
736 debugging. */
737
738 typedef enum sc {
739 sc_Nil = scNil, /* no storage class */
740 sc_Text = scText, /* text symbol */
741 sc_Data = scData, /* initialized data symbol */
742 sc_Bss = scBss, /* un-initialized data symbol */
743 sc_Register = scRegister, /* value of symbol is register number */
744 sc_Abs = scAbs, /* value of symbol is absolute */
745 sc_Undefined = scUndefined, /* who knows? */
746 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
747 sc_Bits = scBits, /* this is a bit field */
748 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
749 sc_RegImage = scRegImage, /* register value saved on stack */
750 sc_Info = scInfo, /* symbol contains debugger information */
751 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
752 sc_SData = scSData, /* load time only small data */
753 sc_SBss = scSBss, /* load time only small common */
754 sc_RData = scRData, /* load time only read only data */
755 sc_Var = scVar, /* Var parameter (fortran,pascal) */
756 sc_Common = scCommon, /* common variable */
757 sc_SCommon = scSCommon, /* small common */
758 sc_VarRegister = scVarRegister, /* Var parameter in a register */
759 sc_Variant = scVariant, /* Variant record */
760 sc_SUndefined = scSUndefined, /* small undefined(external) data */
761 sc_Init = scInit, /* .init section symbol */
762 sc_Max = scMax /* Max storage class+1 */
763 } sc_t;
764
765 /* Redefinition of symbol type. */
766
767 typedef enum st {
768 st_Nil = stNil, /* Nuthin' special */
769 st_Global = stGlobal, /* external symbol */
770 st_Static = stStatic, /* static */
771 st_Param = stParam, /* procedure argument */
772 st_Local = stLocal, /* local variable */
773 st_Label = stLabel, /* label */
774 st_Proc = stProc, /* " " Procedure */
775 st_Block = stBlock, /* beginning of block */
776 st_End = stEnd, /* end (of anything) */
777 st_Member = stMember, /* member (of anything - struct/union/enum */
778 st_Typedef = stTypedef, /* type definition */
779 st_File = stFile, /* file name */
780 st_RegReloc = stRegReloc, /* register relocation */
781 st_Forward = stForward, /* forwarding address */
782 st_StaticProc = stStaticProc, /* load time only static procs */
783 st_Constant = stConstant, /* const */
784 st_Str = stStr, /* string */
785 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
786 st_Expr = stExpr, /* 2+2 vs. 4 */
787 st_Type = stType, /* post-coercion SER */
788 st_Max = stMax /* max type+1 */
789 } st_t;
790
791 /* Redefinition of type qualifiers. */
792
793 typedef enum tq {
794 tq_Nil = tqNil, /* bt is what you see */
795 tq_Ptr = tqPtr, /* pointer */
796 tq_Proc = tqProc, /* procedure */
797 tq_Array = tqArray, /* duh */
798 tq_Far = tqFar, /* longer addressing - 8086/8 land */
799 tq_Vol = tqVol, /* volatile */
800 tq_Max = tqMax /* Max type qualifier+1 */
801 } tq_t;
802
803 /* Redefinition of basic types. */
804
805 typedef enum bt {
806 bt_Nil = btNil, /* undefined */
807 bt_Adr = btAdr, /* address - integer same size as pointer */
808 bt_Char = btChar, /* character */
809 bt_UChar = btUChar, /* unsigned character */
810 bt_Short = btShort, /* short */
811 bt_UShort = btUShort, /* unsigned short */
812 bt_Int = btInt, /* int */
813 bt_UInt = btUInt, /* unsigned int */
814 bt_Long = btLong, /* long */
815 bt_ULong = btULong, /* unsigned long */
816 bt_Float = btFloat, /* float (real) */
817 bt_Double = btDouble, /* Double (real) */
818 bt_Struct = btStruct, /* Structure (Record) */
819 bt_Union = btUnion, /* Union (variant) */
820 bt_Enum = btEnum, /* Enumerated */
821 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
822 bt_Range = btRange, /* subrange of int */
823 bt_Set = btSet, /* pascal sets */
824 bt_Complex = btComplex, /* fortran complex */
825 bt_DComplex = btDComplex, /* fortran double complex */
826 bt_Indirect = btIndirect, /* forward or unnamed typedef */
827 bt_FixedDec = btFixedDec, /* Fixed Decimal */
828 bt_FloatDec = btFloatDec, /* Float Decimal */
829 bt_String = btString, /* Varying Length Character String */
830 bt_Bit = btBit, /* Aligned Bit String */
831 bt_Picture = btPicture, /* Picture */
832
833 #ifdef btVoid
834 bt_Void = btVoid, /* Void */
835 #else
836 #define bt_Void bt_Nil
837 #endif
838
839 bt_Max = btMax /* Max basic type+1 */
840 } bt_t;
841
842 \f
843
844 /* Basic COFF storage classes. */
845 enum coff_storage {
846 C_EFCN = -1,
847 C_NULL = 0,
848 C_AUTO = 1,
849 C_EXT = 2,
850 C_STAT = 3,
851 C_REG = 4,
852 C_EXTDEF = 5,
853 C_LABEL = 6,
854 C_ULABEL = 7,
855 C_MOS = 8,
856 C_ARG = 9,
857 C_STRTAG = 10,
858 C_MOU = 11,
859 C_UNTAG = 12,
860 C_TPDEF = 13,
861 C_USTATIC = 14,
862 C_ENTAG = 15,
863 C_MOE = 16,
864 C_REGPARM = 17,
865 C_FIELD = 18,
866 C_BLOCK = 100,
867 C_FCN = 101,
868 C_EOS = 102,
869 C_FILE = 103,
870 C_LINE = 104,
871 C_ALIAS = 105,
872 C_HIDDEN = 106,
873 C_MAX = 107
874 } coff_storage_t;
875
876 /* Regular COFF fundamental type. */
877 typedef enum coff_type {
878 T_NULL = 0,
879 T_ARG = 1,
880 T_CHAR = 2,
881 T_SHORT = 3,
882 T_INT = 4,
883 T_LONG = 5,
884 T_FLOAT = 6,
885 T_DOUBLE = 7,
886 T_STRUCT = 8,
887 T_UNION = 9,
888 T_ENUM = 10,
889 T_MOE = 11,
890 T_UCHAR = 12,
891 T_USHORT = 13,
892 T_UINT = 14,
893 T_ULONG = 15,
894 T_MAX = 16
895 } coff_type_t;
896
897 /* Regular COFF derived types. */
898 typedef enum coff_dt {
899 DT_NON = 0,
900 DT_PTR = 1,
901 DT_FCN = 2,
902 DT_ARY = 3,
903 DT_MAX = 4
904 } coff_dt_t;
905
906 #define N_BTMASK 017 /* bitmask to isolate basic type */
907 #define N_TMASK 003 /* bitmask to isolate derived type */
908 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
909 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
910 #define N_TQ 6 /* # of type qualifiers */
911
912 /* States for whether to hash type or not. */
913 typedef enum hash_state {
914 hash_no = 0, /* don't hash type */
915 hash_yes = 1, /* ok to hash type, or use previous hash */
916 hash_record = 2 /* ok to record hash, but don't use prev. */
917 } hash_state_t;
918
919
920 /* Types of different sized allocation requests. */
921 enum alloc_type {
922 alloc_type_none, /* dummy value */
923 alloc_type_scope, /* nested scopes linked list */
924 alloc_type_vlinks, /* glue linking pages in varray */
925 alloc_type_shash, /* string hash element */
926 alloc_type_thash, /* type hash element */
927 alloc_type_tag, /* struct/union/tag element */
928 alloc_type_forward, /* element to hold unknown tag */
929 alloc_type_thead, /* head of type hash list */
930 alloc_type_varray, /* general varray allocation */
931 alloc_type_last /* last+1 element for array bounds */
932 };
933
934 \f
935 #define WORD_ALIGN(x) (((x) + 3) & ~3)
936 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
937
938
939 /* Structures to provide n-number of virtual arrays, each of which can
940 grow linearly, and which are written in the object file as sequential
941 pages. On systems with a BSD malloc that define USE_MALLOC, the
942 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
943 adds it's overhead, and rounds up to the next power of 2. Pages are
944 linked together via a linked list.
945
946 If PAGE_SIZE is > 4096, the string length in the shash_t structure
947 can't be represented (assuming there are strings > 4096 bytes). */
948
949 #ifndef PAGE_SIZE
950 #define PAGE_SIZE 4096 /* size of varray pages */
951 #endif
952
953 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
954
955
956 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
957 #ifndef USE_MALLOC /* in one memory request */
958 #define MAX_CLUSTER_PAGES 64
959 #else
960 #define MAX_CLUSTER_PAGES 63
961 #endif
962 #endif
963
964
965 /* Linked list connecting separate page allocations. */
966 typedef struct vlinks {
967 struct vlinks *prev; /* previous set of pages */
968 struct vlinks *next; /* next set of pages */
969 union page *datum; /* start of page */
970 unsigned long start_index; /* starting index # of page */
971 } vlinks_t;
972
973
974 /* Virtual array header. */
975 typedef struct varray {
976 vlinks_t *first; /* first page link */
977 vlinks_t *last; /* last page link */
978 unsigned long num_allocated; /* # objects allocated */
979 unsigned short object_size; /* size in bytes of each object */
980 unsigned short objects_per_page; /* # objects that can fit on a page */
981 unsigned short objects_last_page; /* # objects allocated on last page */
982 } varray_t;
983
984 #ifndef MALLOC_CHECK
985 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
986 #else
987 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
988 #endif
989
990 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
991 (vlinks_t *)0, /* first */ \
992 (vlinks_t *)0, /* last */ \
993 0, /* num_allocated */ \
994 sizeof (type), /* object_size */ \
995 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
996 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
997 }
998
999 /* Master type for indexes within the symbol table. */
1000 typedef unsigned long symint_t;
1001
1002
1003 /* Linked list support for nested scopes (file, block, structure, etc.). */
1004 typedef struct scope {
1005 struct scope *prev; /* previous scope level */
1006 struct scope *free; /* free list pointer */
1007 SYMR *lsym; /* pointer to local symbol node */
1008 symint_t lnumber; /* lsym index */
1009 st_t type; /* type of the node */
1010 } scope_t;
1011
1012
1013 /* Forward reference list for tags referenced, but not yet defined. */
1014 typedef struct forward {
1015 struct forward *next; /* next forward reference */
1016 struct forward *free; /* free list pointer */
1017 AUXU *ifd_ptr; /* pointer to store file index */
1018 AUXU *index_ptr; /* pointer to store symbol index */
1019 AUXU *type_ptr; /* pointer to munge type info */
1020 } forward_t;
1021
1022
1023 /* Linked list support for tags. The first tag in the list is always
1024 the current tag for that block. */
1025 typedef struct tag {
1026 struct tag *free; /* free list pointer */
1027 struct shash *hash_ptr; /* pointer to the hash table head */
1028 struct tag *same_name; /* tag with same name in outer scope */
1029 struct tag *same_block; /* next tag defined in the same block. */
1030 struct forward *forward_ref; /* list of forward references */
1031 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1032 symint_t ifd; /* file # tag defined in */
1033 symint_t indx; /* index within file's local symbols */
1034 } tag_t;
1035
1036
1037 /* Head of a block's linked list of tags. */
1038 typedef struct thead {
1039 struct thead *prev; /* previous block */
1040 struct thead *free; /* free list pointer */
1041 struct tag *first_tag; /* first tag in block defined */
1042 } thead_t;
1043
1044
1045 /* Union containing pointers to each the small structures which are freed up. */
1046 typedef union small_free {
1047 scope_t *f_scope; /* scope structure */
1048 thead_t *f_thead; /* tag head structure */
1049 tag_t *f_tag; /* tag element structure */
1050 forward_t *f_forward; /* forward tag reference */
1051 } small_free_t;
1052
1053
1054 /* String hash table support. The size of the hash table must fit
1055 within a page. */
1056
1057 #ifndef SHASH_SIZE
1058 #define SHASH_SIZE 1009
1059 #endif
1060
1061 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1062
1063 typedef struct shash {
1064 struct shash *next; /* next hash value */
1065 char *string; /* string we are hashing */
1066 symint_t len; /* string length */
1067 symint_t indx; /* index within string table */
1068 EXTR *esym_ptr; /* global symbol pointer */
1069 SYMR *sym_ptr; /* local symbol pointer */
1070 SYMR *end_ptr; /* symbol pointer to end block */
1071 tag_t *tag_ptr; /* tag pointer */
1072 PDR *proc_ptr; /* procedure descriptor pointer */
1073 } shash_t;
1074
1075
1076 /* Type hash table support. The size of the hash table must fit
1077 within a page with the other extended file descriptor information.
1078 Because unique types which are hashed are fewer in number than
1079 strings, we use a smaller hash value. */
1080
1081 #ifndef THASH_SIZE
1082 #define THASH_SIZE 113
1083 #endif
1084
1085 typedef struct thash {
1086 struct thash *next; /* next hash value */
1087 AUXU type; /* type we are hashing */
1088 symint_t indx; /* index within string table */
1089 } thash_t;
1090
1091
1092 /* Extended file descriptor that contains all of the support necessary
1093 to add things to each file separately. */
1094 typedef struct efdr {
1095 FDR fdr; /* File header to be written out */
1096 FDR *orig_fdr; /* original file header */
1097 char *name; /* filename */
1098 int name_len; /* length of the filename */
1099 symint_t void_type; /* aux. pointer to 'void' type */
1100 symint_t int_type; /* aux. pointer to 'int' type */
1101 scope_t *cur_scope; /* current nested scopes */
1102 symint_t file_index; /* current file number */
1103 int nested_scopes; /* # nested scopes */
1104 varray_t strings; /* local strings */
1105 varray_t symbols; /* local symbols */
1106 varray_t procs; /* procedures */
1107 varray_t aux_syms; /* auxiliary symbols */
1108 struct efdr *next_file; /* next file descriptor */
1109 /* string/type hash tables */
1110 shash_t **shash_head; /* string hash table */
1111 thash_t *thash_head[THASH_SIZE];
1112 } efdr_t;
1113
1114 /* Pre-initialized extended file structure. */
1115 static efdr_t init_file =
1116 {
1117 { /* FDR structure */
1118 0, /* adr: memory address of beginning of file */
1119 0, /* rss: file name (of source, if known) */
1120 0, /* issBase: file's string space */
1121 0, /* cbSs: number of bytes in the ss */
1122 0, /* isymBase: beginning of symbols */
1123 0, /* csym: count file's of symbols */
1124 0, /* ilineBase: file's line symbols */
1125 0, /* cline: count of file's line symbols */
1126 0, /* ioptBase: file's optimization entries */
1127 0, /* copt: count of file's optimization entries */
1128 0, /* ipdFirst: start of procedures for this file */
1129 0, /* cpd: count of procedures for this file */
1130 0, /* iauxBase: file's auxiliary entries */
1131 0, /* caux: count of file's auxiliary entries */
1132 0, /* rfdBase: index into the file indirect table */
1133 0, /* crfd: count file indirect entries */
1134 langC, /* lang: language for this file */
1135 1, /* fMerge: whether this file can be merged */
1136 0, /* fReadin: true if read in (not just created) */
1137 #if BYTES_BIG_ENDIAN
1138 1, /* fBigendian: if 1, compiled on big endian machine */
1139 #else
1140 0, /* fBigendian: if 1, compiled on big endian machine */
1141 #endif
1142 GLEVEL_2, /* glevel: level this file was compiled with */
1143 0, /* reserved: reserved for future use */
1144 0, /* cbLineOffset: byte offset from header for this file ln's */
1145 0, /* cbLine: size of lines for this file */
1146 },
1147
1148 (FDR *)0, /* orig_fdr: original file header pointer */
1149 (char *)0, /* name: pointer to filename */
1150 0, /* name_len: length of filename */
1151 0, /* void_type: ptr to aux node for void type */
1152 0, /* int_type: ptr to aux node for int type */
1153 (scope_t *)0, /* cur_scope: current scope being processed */
1154 0, /* file_index: current file # */
1155 0, /* nested_scopes: # nested scopes */
1156 INIT_VARRAY (char), /* strings: local string varray */
1157 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1158 INIT_VARRAY (PDR), /* procs: procedure varray */
1159 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1160
1161 (struct efdr *)0, /* next_file: next file structure */
1162
1163 (shash_t **)0, /* shash_head: string hash table */
1164 { 0 }, /* thash_head: type hash table */
1165 };
1166
1167
1168 static efdr_t *first_file; /* first file descriptor */
1169 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1170
1171
1172 /* Union of various things that are held in pages. */
1173 typedef union page {
1174 char byte [ PAGE_SIZE ];
1175 unsigned char ubyte [ PAGE_SIZE ];
1176 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1177 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1178 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1179 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1180 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1181 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1182 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1183 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1184 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1185 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1186 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1187 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1188 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1189 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1190 } page_t;
1191
1192
1193 /* Structure holding allocation information for small sized structures. */
1194 typedef struct alloc_info {
1195 char *alloc_name; /* name of this allocation type (must be first) */
1196 page_t *cur_page; /* current page being allocated from */
1197 small_free_t free_list; /* current free list if any */
1198 int unallocated; /* number of elements unallocated on page */
1199 int total_alloc; /* total number of allocations */
1200 int total_free; /* total number of frees */
1201 int total_pages; /* total number of pages allocated */
1202 } alloc_info_t;
1203
1204 /* Type information collected together. */
1205 typedef struct type_info {
1206 bt_t basic_type; /* basic type */
1207 coff_type_t orig_type; /* original COFF-based type */
1208 int num_tq; /* # type qualifiers */
1209 int num_dims; /* # dimensions */
1210 int num_sizes; /* # sizes */
1211 int extra_sizes; /* # extra sizes not tied with dims */
1212 tag_t * tag_ptr; /* tag pointer */
1213 int bitfield; /* symbol is a bitfield */
1214 int unknown_tag; /* this is an unknown tag */
1215 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1216 symint_t dimensions [N_TQ]; /* dimensions for each array */
1217 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1218 struct/union/enum + bitfield size */
1219 } type_info_t;
1220
1221 /* Pre-initialized type_info struct. */
1222 static type_info_t type_info_init = {
1223 bt_Nil, /* basic type */
1224 T_NULL, /* original COFF-based type */
1225 0, /* # type qualifiers */
1226 0, /* # dimensions */
1227 0, /* # sizes */
1228 0, /* sizes not tied with dims */
1229 NULL, /* ptr to tag */
1230 0, /* bitfield */
1231 0, /* unknown tag */
1232 { /* type qualifiers */
1233 tq_Nil,
1234 tq_Nil,
1235 tq_Nil,
1236 tq_Nil,
1237 tq_Nil,
1238 tq_Nil,
1239 },
1240 { /* dimensions */
1241 0,
1242 0,
1243 0,
1244 0,
1245 0,
1246 0
1247 },
1248 { /* sizes */
1249 0,
1250 0,
1251 0,
1252 0,
1253 0,
1254 0,
1255 0,
1256 0,
1257 },
1258 };
1259
1260
1261 /* Global virtual arrays & hash table for external strings as well as
1262 for the tags table and global tables for file descriptors, and
1263 dense numbers. */
1264
1265 static varray_t file_desc = INIT_VARRAY (efdr_t);
1266 static varray_t dense_num = INIT_VARRAY (DNR);
1267 static varray_t tag_strings = INIT_VARRAY (char);
1268 static varray_t ext_strings = INIT_VARRAY (char);
1269 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1270
1271 static shash_t *orig_str_hash[SHASH_SIZE];
1272 static shash_t *ext_str_hash [SHASH_SIZE];
1273 static shash_t *tag_hash [SHASH_SIZE];
1274
1275 /* Static types for int and void. Also, remember the last function's
1276 type (which is set up when we encounter the declaration for the
1277 function, and used when the end block for the function is emitted. */
1278
1279 static type_info_t int_type_info;
1280 static type_info_t void_type_info;
1281 static type_info_t last_func_type_info;
1282 static EXTR *last_func_eptr;
1283
1284
1285 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1286 really should use bt_Void, but this causes the current ecoff GDB to
1287 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1288 2.0) doesn't understand it, even though the compiler generates it.
1289 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1290 suite, but for now go with what works. */
1291
1292 static bt_t map_coff_types[ (int)T_MAX ] = {
1293 bt_Nil, /* T_NULL */
1294 bt_Nil, /* T_ARG */
1295 bt_Char, /* T_CHAR */
1296 bt_Short, /* T_SHORT */
1297 bt_Int, /* T_INT */
1298 bt_Long, /* T_LONG */
1299 bt_Float, /* T_FLOAT */
1300 bt_Double, /* T_DOUBLE */
1301 bt_Struct, /* T_STRUCT */
1302 bt_Union, /* T_UNION */
1303 bt_Enum, /* T_ENUM */
1304 bt_Enum, /* T_MOE */
1305 bt_UChar, /* T_UCHAR */
1306 bt_UShort, /* T_USHORT */
1307 bt_UInt, /* T_UINT */
1308 bt_ULong /* T_ULONG */
1309 };
1310
1311 /* Convert COFF storage class to ECOFF storage class. */
1312 static sc_t map_coff_storage[ (int)C_MAX ] = {
1313 sc_Nil, /* 0: C_NULL */
1314 sc_Abs, /* 1: C_AUTO auto var */
1315 sc_Undefined, /* 2: C_EXT external */
1316 sc_Data, /* 3: C_STAT static */
1317 sc_Register, /* 4: C_REG register */
1318 sc_Undefined, /* 5: C_EXTDEF ??? */
1319 sc_Text, /* 6: C_LABEL label */
1320 sc_Text, /* 7: C_ULABEL user label */
1321 sc_Info, /* 8: C_MOS member of struct */
1322 sc_Abs, /* 9: C_ARG argument */
1323 sc_Info, /* 10: C_STRTAG struct tag */
1324 sc_Info, /* 11: C_MOU member of union */
1325 sc_Info, /* 12: C_UNTAG union tag */
1326 sc_Info, /* 13: C_TPDEF typedef */
1327 sc_Data, /* 14: C_USTATIC ??? */
1328 sc_Info, /* 15: C_ENTAG enum tag */
1329 sc_Info, /* 16: C_MOE member of enum */
1330 sc_Register, /* 17: C_REGPARM register parameter */
1331 sc_Bits, /* 18; C_FIELD bitfield */
1332 sc_Nil, /* 19 */
1333 sc_Nil, /* 20 */
1334 sc_Nil, /* 21 */
1335 sc_Nil, /* 22 */
1336 sc_Nil, /* 23 */
1337 sc_Nil, /* 24 */
1338 sc_Nil, /* 25 */
1339 sc_Nil, /* 26 */
1340 sc_Nil, /* 27 */
1341 sc_Nil, /* 28 */
1342 sc_Nil, /* 29 */
1343 sc_Nil, /* 30 */
1344 sc_Nil, /* 31 */
1345 sc_Nil, /* 32 */
1346 sc_Nil, /* 33 */
1347 sc_Nil, /* 34 */
1348 sc_Nil, /* 35 */
1349 sc_Nil, /* 36 */
1350 sc_Nil, /* 37 */
1351 sc_Nil, /* 38 */
1352 sc_Nil, /* 39 */
1353 sc_Nil, /* 40 */
1354 sc_Nil, /* 41 */
1355 sc_Nil, /* 42 */
1356 sc_Nil, /* 43 */
1357 sc_Nil, /* 44 */
1358 sc_Nil, /* 45 */
1359 sc_Nil, /* 46 */
1360 sc_Nil, /* 47 */
1361 sc_Nil, /* 48 */
1362 sc_Nil, /* 49 */
1363 sc_Nil, /* 50 */
1364 sc_Nil, /* 51 */
1365 sc_Nil, /* 52 */
1366 sc_Nil, /* 53 */
1367 sc_Nil, /* 54 */
1368 sc_Nil, /* 55 */
1369 sc_Nil, /* 56 */
1370 sc_Nil, /* 57 */
1371 sc_Nil, /* 58 */
1372 sc_Nil, /* 59 */
1373 sc_Nil, /* 60 */
1374 sc_Nil, /* 61 */
1375 sc_Nil, /* 62 */
1376 sc_Nil, /* 63 */
1377 sc_Nil, /* 64 */
1378 sc_Nil, /* 65 */
1379 sc_Nil, /* 66 */
1380 sc_Nil, /* 67 */
1381 sc_Nil, /* 68 */
1382 sc_Nil, /* 69 */
1383 sc_Nil, /* 70 */
1384 sc_Nil, /* 71 */
1385 sc_Nil, /* 72 */
1386 sc_Nil, /* 73 */
1387 sc_Nil, /* 74 */
1388 sc_Nil, /* 75 */
1389 sc_Nil, /* 76 */
1390 sc_Nil, /* 77 */
1391 sc_Nil, /* 78 */
1392 sc_Nil, /* 79 */
1393 sc_Nil, /* 80 */
1394 sc_Nil, /* 81 */
1395 sc_Nil, /* 82 */
1396 sc_Nil, /* 83 */
1397 sc_Nil, /* 84 */
1398 sc_Nil, /* 85 */
1399 sc_Nil, /* 86 */
1400 sc_Nil, /* 87 */
1401 sc_Nil, /* 88 */
1402 sc_Nil, /* 89 */
1403 sc_Nil, /* 90 */
1404 sc_Nil, /* 91 */
1405 sc_Nil, /* 92 */
1406 sc_Nil, /* 93 */
1407 sc_Nil, /* 94 */
1408 sc_Nil, /* 95 */
1409 sc_Nil, /* 96 */
1410 sc_Nil, /* 97 */
1411 sc_Nil, /* 98 */
1412 sc_Nil, /* 99 */
1413 sc_Text, /* 100: C_BLOCK block start/end */
1414 sc_Text, /* 101: C_FCN function start/end */
1415 sc_Info, /* 102: C_EOS end of struct/union/enum */
1416 sc_Nil, /* 103: C_FILE file start */
1417 sc_Nil, /* 104: C_LINE line number */
1418 sc_Nil, /* 105: C_ALIAS combined type info */
1419 sc_Nil, /* 106: C_HIDDEN ??? */
1420 };
1421
1422 /* Convert COFF storage class to ECOFF symbol type. */
1423 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1424 st_Nil, /* 0: C_NULL */
1425 st_Local, /* 1: C_AUTO auto var */
1426 st_Global, /* 2: C_EXT external */
1427 st_Static, /* 3: C_STAT static */
1428 st_Local, /* 4: C_REG register */
1429 st_Global, /* 5: C_EXTDEF ??? */
1430 st_Label, /* 6: C_LABEL label */
1431 st_Label, /* 7: C_ULABEL user label */
1432 st_Member, /* 8: C_MOS member of struct */
1433 st_Param, /* 9: C_ARG argument */
1434 st_Block, /* 10: C_STRTAG struct tag */
1435 st_Member, /* 11: C_MOU member of union */
1436 st_Block, /* 12: C_UNTAG union tag */
1437 st_Typedef, /* 13: C_TPDEF typedef */
1438 st_Static, /* 14: C_USTATIC ??? */
1439 st_Block, /* 15: C_ENTAG enum tag */
1440 st_Member, /* 16: C_MOE member of enum */
1441 st_Param, /* 17: C_REGPARM register parameter */
1442 st_Member, /* 18; C_FIELD bitfield */
1443 st_Nil, /* 19 */
1444 st_Nil, /* 20 */
1445 st_Nil, /* 21 */
1446 st_Nil, /* 22 */
1447 st_Nil, /* 23 */
1448 st_Nil, /* 24 */
1449 st_Nil, /* 25 */
1450 st_Nil, /* 26 */
1451 st_Nil, /* 27 */
1452 st_Nil, /* 28 */
1453 st_Nil, /* 29 */
1454 st_Nil, /* 30 */
1455 st_Nil, /* 31 */
1456 st_Nil, /* 32 */
1457 st_Nil, /* 33 */
1458 st_Nil, /* 34 */
1459 st_Nil, /* 35 */
1460 st_Nil, /* 36 */
1461 st_Nil, /* 37 */
1462 st_Nil, /* 38 */
1463 st_Nil, /* 39 */
1464 st_Nil, /* 40 */
1465 st_Nil, /* 41 */
1466 st_Nil, /* 42 */
1467 st_Nil, /* 43 */
1468 st_Nil, /* 44 */
1469 st_Nil, /* 45 */
1470 st_Nil, /* 46 */
1471 st_Nil, /* 47 */
1472 st_Nil, /* 48 */
1473 st_Nil, /* 49 */
1474 st_Nil, /* 50 */
1475 st_Nil, /* 51 */
1476 st_Nil, /* 52 */
1477 st_Nil, /* 53 */
1478 st_Nil, /* 54 */
1479 st_Nil, /* 55 */
1480 st_Nil, /* 56 */
1481 st_Nil, /* 57 */
1482 st_Nil, /* 58 */
1483 st_Nil, /* 59 */
1484 st_Nil, /* 60 */
1485 st_Nil, /* 61 */
1486 st_Nil, /* 62 */
1487 st_Nil, /* 63 */
1488 st_Nil, /* 64 */
1489 st_Nil, /* 65 */
1490 st_Nil, /* 66 */
1491 st_Nil, /* 67 */
1492 st_Nil, /* 68 */
1493 st_Nil, /* 69 */
1494 st_Nil, /* 70 */
1495 st_Nil, /* 71 */
1496 st_Nil, /* 72 */
1497 st_Nil, /* 73 */
1498 st_Nil, /* 74 */
1499 st_Nil, /* 75 */
1500 st_Nil, /* 76 */
1501 st_Nil, /* 77 */
1502 st_Nil, /* 78 */
1503 st_Nil, /* 79 */
1504 st_Nil, /* 80 */
1505 st_Nil, /* 81 */
1506 st_Nil, /* 82 */
1507 st_Nil, /* 83 */
1508 st_Nil, /* 84 */
1509 st_Nil, /* 85 */
1510 st_Nil, /* 86 */
1511 st_Nil, /* 87 */
1512 st_Nil, /* 88 */
1513 st_Nil, /* 89 */
1514 st_Nil, /* 90 */
1515 st_Nil, /* 91 */
1516 st_Nil, /* 92 */
1517 st_Nil, /* 93 */
1518 st_Nil, /* 94 */
1519 st_Nil, /* 95 */
1520 st_Nil, /* 96 */
1521 st_Nil, /* 97 */
1522 st_Nil, /* 98 */
1523 st_Nil, /* 99 */
1524 st_Block, /* 100: C_BLOCK block start/end */
1525 st_Proc, /* 101: C_FCN function start/end */
1526 st_End, /* 102: C_EOS end of struct/union/enum */
1527 st_File, /* 103: C_FILE file start */
1528 st_Nil, /* 104: C_LINE line number */
1529 st_Nil, /* 105: C_ALIAS combined type info */
1530 st_Nil, /* 106: C_HIDDEN ??? */
1531 };
1532
1533 /* Map COFF derived types to ECOFF type qualifiers. */
1534 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1535 tq_Nil, /* 0: DT_NON no more qualifiers */
1536 tq_Ptr, /* 1: DT_PTR pointer */
1537 tq_Proc, /* 2: DT_FCN function */
1538 tq_Array, /* 3: DT_ARY array */
1539 };
1540
1541
1542 /* Keep track of different sized allocation requests. */
1543 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1544
1545 \f
1546 /* Pointers and such to the original symbol table that is read in. */
1547 static struct filehdr orig_file_header; /* global object file header */
1548
1549 static HDRR orig_sym_hdr; /* symbolic header on input */
1550 static char *orig_linenum; /* line numbers */
1551 static DNR *orig_dense; /* dense numbers */
1552 static PDR *orig_procs; /* procedures */
1553 static SYMR *orig_local_syms; /* local symbols */
1554 static OPTR *orig_opt_syms; /* optimization symbols */
1555 static AUXU *orig_aux_syms; /* auxiliary symbols */
1556 static char *orig_local_strs; /* local strings */
1557 static char *orig_ext_strs; /* external strings */
1558 static FDR *orig_files; /* file descriptors */
1559 static symint_t *orig_rfds; /* relative file desc's */
1560 static EXTR *orig_ext_syms; /* external symbols */
1561
1562 /* Macros to convert an index into a given object within the original
1563 symbol table. */
1564 #define CHECK(num,max,str) \
1565 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1566
1567 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1568 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1569 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1570 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1571 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1572 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1573 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1574 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1575 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1576 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1577 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1578
1579 /* Various other statics. */
1580 static HDRR symbolic_header; /* symbolic header */
1581 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1582 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1583 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1584 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1585 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1586 static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1587 static long file_offset = 0; /* current file offset */
1588 static long max_file_offset = 0; /* maximum file offset */
1589 static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1590 static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1591 static char *progname = (char *)0; /* program name for errors */
1592 static char *input_name = "stdin"; /* name of input file */
1593 static char *object_name = (char *)0; /* tmp. name of object file */
1594 static char *obj_in_name = (char *)0; /* name of input object file */
1595 static char *cur_line_start = (char *)0; /* current line read in */
1596 static char *cur_line_ptr = (char *)0; /* ptr within current line */
1597 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1598 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1599 static long line_number = 0; /* current input line number */
1600 static int debug = 0; /* trace functions */
1601 static int version = 0; /* print version # */
1602 static int had_errors = 0; /* != 0 if errors were found */
1603 static int rename_output = 0; /* != 0 if rename output file*/
1604 static int delete_input = 0; /* != 0 if delete input after done */
1605 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1606
1607
1608 /* Pseudo symbol to use when putting stabs into the symbol table. */
1609 #ifndef STABS_SYMBOL
1610 #define STABS_SYMBOL "@stabs"
1611 #endif
1612
1613 static char stabs_symbol[] = STABS_SYMBOL;
1614
1615 \f
1616 /* Forward reference for functions. See the definition for more details. */
1617
1618 #ifndef STATIC
1619 #define STATIC static
1620 #endif
1621
1622 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1623
1624 STATIC shash_t *hash_string __proto((const char *,
1625 Ptrdiff_t,
1626 shash_t **,
1627 symint_t *));
1628
1629 STATIC symint_t add_string __proto((varray_t *,
1630 shash_t **,
1631 const char *,
1632 const char *,
1633 shash_t **));
1634
1635 STATIC symint_t add_local_symbol
1636 __proto((const char *,
1637 const char *,
1638 st_t,
1639 sc_t,
1640 symint_t,
1641 symint_t));
1642
1643 STATIC symint_t add_ext_symbol __proto((const char *,
1644 const char *,
1645 st_t,
1646 sc_t,
1647 long,
1648 symint_t,
1649 int));
1650
1651 STATIC symint_t add_aux_sym_symint
1652 __proto((symint_t));
1653
1654 STATIC symint_t add_aux_sym_rndx
1655 __proto((int, symint_t));
1656
1657 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1658 hash_state_t,
1659 thash_t **));
1660
1661 STATIC tag_t * get_tag __proto((const char *,
1662 const char *,
1663 symint_t,
1664 bt_t));
1665
1666 STATIC void add_unknown_tag __proto((tag_t *));
1667
1668 STATIC void add_procedure __proto((const char *,
1669 const char *));
1670
1671 STATIC void add_file __proto((const char *,
1672 const char *));
1673
1674 STATIC void add_bytes __proto((varray_t *,
1675 char *,
1676 Size_t));
1677
1678 STATIC void add_varray_page __proto((varray_t *));
1679
1680 STATIC void update_headers __proto((void));
1681
1682 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1683 STATIC void write_object __proto((void));
1684 STATIC char *st_to_string __proto((st_t));
1685 STATIC char *sc_to_string __proto((sc_t));
1686 STATIC char *read_line __proto((void));
1687 STATIC void parse_input __proto((void));
1688 STATIC void mark_stabs __proto((const char *));
1689 STATIC void parse_begin __proto((const char *));
1690 STATIC void parse_bend __proto((const char *));
1691 STATIC void parse_def __proto((const char *));
1692 STATIC void parse_end __proto((const char *));
1693 STATIC void parse_ent __proto((const char *));
1694 STATIC void parse_file __proto((const char *));
1695 STATIC void parse_stabs_common
1696 __proto((const char *, const char *, const char *));
1697 STATIC void parse_stabs __proto((const char *));
1698 STATIC void parse_stabn __proto((const char *));
1699 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1700 STATIC void copy_object __proto((void));
1701
1702 STATIC void catch_signal __proto((int));
1703 STATIC page_t *allocate_page __proto((void));
1704
1705 STATIC page_t *allocate_multiple_pages
1706 __proto((Size_t));
1707
1708 STATIC void free_multiple_pages
1709 __proto((page_t *, Size_t));
1710
1711 #ifndef MALLOC_CHECK
1712 STATIC page_t *allocate_cluster
1713 __proto((Size_t));
1714 #endif
1715
1716 STATIC forward_t *allocate_forward __proto((void));
1717 STATIC scope_t *allocate_scope __proto((void));
1718 STATIC shash_t *allocate_shash __proto((void));
1719 STATIC tag_t *allocate_tag __proto((void));
1720 STATIC thash_t *allocate_thash __proto((void));
1721 STATIC thead_t *allocate_thead __proto((void));
1722 STATIC vlinks_t *allocate_vlinks __proto((void));
1723
1724 STATIC void free_forward __proto((forward_t *));
1725 STATIC void free_scope __proto((scope_t *));
1726 STATIC void free_tag __proto((tag_t *));
1727 STATIC void free_thead __proto((thead_t *));
1728
1729 STATIC char *local_index __proto((const char *, int));
1730 STATIC char *local_rindex __proto((const char *, int));
1731
1732 extern char *sbrk __proto((int));
1733 extern PTR_T malloc __proto((Size_t));
1734 extern PTR_T calloc __proto((Size_t, Size_t));
1735 extern PTR_T realloc __proto((PTR_T, Size_t));
1736 extern void free __proto((PTR_T));
1737 extern char *mktemp __proto((char *));
1738 extern long strtol __proto((const char *, char **, int));
1739
1740 extern char *optarg;
1741 extern int optind;
1742 extern int opterr;
1743 extern char *version_string;
1744 extern char *sys_siglist[NSIG + 1];
1745
1746 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1747 #define SEEK_SET 0 /* Set file pointer to offset */
1748 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1749 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1750 #endif
1751
1752 \f
1753 /* List of assembler pseudo ops and beginning sequences that need
1754 special actions. Someday, this should be a hash table, and such,
1755 but for now a linear list of names and calls to memcmp will
1756 do...... */
1757
1758 typedef struct _pseudo_ops {
1759 const char *name; /* pseudo-op in ascii */
1760 int len; /* length of name to compare */
1761 void (*func) __proto((const char *)); /* function to handle line */
1762 } pseudo_ops_t;
1763
1764 static pseudo_ops_t pseudo_ops[] = {
1765 { "#.def", sizeof("#.def")-1, parse_def },
1766 { "#.begin", sizeof("#.begin")-1, parse_begin },
1767 { "#.bend", sizeof("#.bend")-1, parse_bend },
1768 { ".end", sizeof(".end")-1, parse_end },
1769 { ".ent", sizeof(".ent")-1, parse_ent },
1770 { ".file", sizeof(".file")-1, parse_file },
1771 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1772 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1773 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1774 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1775 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1776 };
1777
1778 \f
1779 /* Add a page to a varray object. */
1780
1781 STATIC void
1782 add_varray_page (vp)
1783 varray_t *vp; /* varray to add page to */
1784 {
1785 vlinks_t *new_links = allocate_vlinks ();
1786
1787 #ifdef MALLOC_CHECK
1788 if (vp->object_size > 1)
1789 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1790 else
1791 #endif
1792 new_links->datum = allocate_page ();
1793
1794 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1795 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1796
1797 new_links->start_index = vp->num_allocated;
1798 vp->objects_last_page = 0;
1799
1800 if (vp->first == (vlinks_t *)0) /* first allocation? */
1801 vp->first = vp->last = new_links;
1802 else
1803 { /* 2nd or greater allocation */
1804 new_links->prev = vp->last;
1805 vp->last->next = new_links;
1806 vp->last = new_links;
1807 }
1808 }
1809
1810 \f
1811 /* Compute hash code (from tree.c) */
1812
1813 #define HASHBITS 30
1814
1815 STATIC shash_t *
1816 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1817 const char *text; /* ptr to text to hash */
1818 Ptrdiff_t hash_len; /* length of the text */
1819 shash_t **hash_tbl; /* hash table */
1820 symint_t *ret_hash_index; /* ptr to store hash index */
1821 {
1822 register unsigned long hi;
1823 register Ptrdiff_t i;
1824 register shash_t *ptr;
1825 register int first_ch = *text;
1826
1827 hi = hash_len;
1828 for (i = 0; i < hash_len; i++)
1829 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1830
1831 hi &= (1 << HASHBITS) - 1;
1832 hi %= SHASH_SIZE;
1833
1834 if (ret_hash_index != (symint_t *)0)
1835 *ret_hash_index = hi;
1836
1837 for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1838 if (hash_len == ptr->len
1839 && first_ch == ptr->string[0]
1840 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1841 break;
1842
1843 return ptr;
1844 }
1845
1846 \f
1847 /* Add a string (and null pad) to one of the string tables. A
1848 consequence of hashing strings, is that we don't let strings
1849 cross page boundaries. The extra nulls will be ignored. */
1850
1851 STATIC symint_t
1852 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1853 varray_t *vp; /* string virtual array */
1854 shash_t **hash_tbl; /* ptr to hash table */
1855 const char *start; /* 1st byte in string */
1856 const char *end_p1; /* 1st byte after string */
1857 shash_t **ret_hash; /* return hash pointer */
1858 {
1859 register Ptrdiff_t len = end_p1 - start;
1860 register shash_t *hash_ptr;
1861 symint_t hi;
1862
1863 if (len >= PAGE_USIZE)
1864 fatal ("String too big (%ld bytes)", (long) len);
1865
1866 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1867 if (hash_ptr == (shash_t *)0)
1868 {
1869 register char *p;
1870
1871 if (vp->objects_last_page + len >= PAGE_USIZE)
1872 {
1873 vp->num_allocated =
1874 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1875 add_varray_page (vp);
1876 }
1877
1878 hash_ptr = allocate_shash ();
1879 hash_ptr->next = hash_tbl[hi];
1880 hash_tbl[hi] = hash_ptr;
1881
1882 hash_ptr->len = len;
1883 hash_ptr->indx = vp->num_allocated;
1884 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1885
1886 vp->objects_last_page += len+1;
1887 vp->num_allocated += len+1;
1888
1889 while (len-- > 0)
1890 *p++ = *start++;
1891
1892 *p = '\0';
1893 }
1894
1895 if (ret_hash != (shash_t **)0)
1896 *ret_hash = hash_ptr;
1897
1898 return hash_ptr->indx;
1899 }
1900
1901 \f
1902 /* Add a local symbol. */
1903
1904 STATIC symint_t
1905 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1906 const char *str_start; /* first byte in string */
1907 const char *str_end_p1; /* first byte after string */
1908 st_t type; /* symbol type */
1909 sc_t storage; /* storage class */
1910 symint_t value; /* value of symbol */
1911 symint_t indx; /* index to local/aux. syms */
1912 {
1913 register symint_t ret;
1914 register SYMR *psym;
1915 register scope_t *pscope;
1916 register thead_t *ptag_head;
1917 register tag_t *ptag;
1918 register tag_t *ptag_next;
1919 register varray_t *vp = &cur_file_ptr->symbols;
1920 register int scope_delta = 0;
1921 shash_t *hash_ptr = (shash_t *)0;
1922
1923 if (vp->objects_last_page == vp->objects_per_page)
1924 add_varray_page (vp);
1925
1926 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1927
1928 psym->value = value;
1929 psym->st = (unsigned) type;
1930 psym->sc = (unsigned) storage;
1931 psym->index = indx;
1932 psym->iss = (str_start == (const char *)0)
1933 ? 0
1934 : add_string (&cur_file_ptr->strings,
1935 &cur_file_ptr->shash_head[0],
1936 str_start,
1937 str_end_p1,
1938 &hash_ptr);
1939
1940 ret = vp->num_allocated++;
1941
1942 if (MIPS_IS_STAB(psym))
1943 return ret;
1944
1945 /* Save the symbol within the hash table if this is a static
1946 item, and it has a name. */
1947 if (hash_ptr != (shash_t *)0
1948 && (type == st_Global || type == st_Static || type == st_Label
1949 || type == st_Proc || type == st_StaticProc))
1950 hash_ptr->sym_ptr = psym;
1951
1952 /* push or pop a scope if appropriate. */
1953 switch (type)
1954 {
1955 default:
1956 break;
1957
1958 case st_File: /* beginning of file */
1959 case st_Proc: /* procedure */
1960 case st_StaticProc: /* static procedure */
1961 case st_Block: /* begin scope */
1962 pscope = allocate_scope ();
1963 pscope->prev = cur_file_ptr->cur_scope;
1964 pscope->lsym = psym;
1965 pscope->lnumber = ret;
1966 pscope->type = type;
1967 cur_file_ptr->cur_scope = pscope;
1968
1969 if (type != st_File)
1970 scope_delta = 1;
1971
1972 /* For every block type except file, struct, union, or
1973 enumeration blocks, push a level on the tag stack. We omit
1974 file types, so that tags can span file boundaries. */
1975 if (type != st_File && storage != sc_Info)
1976 {
1977 ptag_head = allocate_thead ();
1978 ptag_head->first_tag = 0;
1979 ptag_head->prev = cur_tag_head;
1980 cur_tag_head = ptag_head;
1981 }
1982 break;
1983
1984 case st_End:
1985 pscope = cur_file_ptr->cur_scope;
1986 if (pscope == (scope_t *)0)
1987 error ("internal error, too many st_End's");
1988
1989 else
1990 {
1991 st_t begin_type = (st_t) pscope->lsym->st;
1992
1993 if (begin_type != st_File)
1994 scope_delta = -1;
1995
1996 /* Except for file, structure, union, or enumeration end
1997 blocks remove all tags created within this scope. */
1998 if (begin_type != st_File && storage != sc_Info)
1999 {
2000 ptag_head = cur_tag_head;
2001 cur_tag_head = ptag_head->prev;
2002
2003 for (ptag = ptag_head->first_tag;
2004 ptag != (tag_t *)0;
2005 ptag = ptag_next)
2006 {
2007 if (ptag->forward_ref != (forward_t *)0)
2008 add_unknown_tag (ptag);
2009
2010 ptag_next = ptag->same_block;
2011 ptag->hash_ptr->tag_ptr = ptag->same_name;
2012 free_tag (ptag);
2013 }
2014
2015 free_thead (ptag_head);
2016 }
2017
2018 cur_file_ptr->cur_scope = pscope->prev;
2019 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2020
2021 if (storage != sc_Info)
2022 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2023
2024 if (begin_type == st_File || begin_type == st_Block)
2025 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2026
2027 /* Functions push two or more aux words as follows:
2028 1st word: index+1 of the end symbol
2029 2nd word: type of the function (plus any aux words needed).
2030 Also, tie the external pointer back to the function begin symbol. */
2031 else
2032 {
2033 symint_t type;
2034 pscope->lsym->index = add_aux_sym_symint (ret+1);
2035 type = add_aux_sym_tir (&last_func_type_info,
2036 hash_no,
2037 &cur_file_ptr->thash_head[0]);
2038 if (last_func_eptr)
2039 {
2040 last_func_eptr->ifd = cur_file_ptr->file_index;
2041 last_func_eptr->asym.index = type;
2042 }
2043 }
2044
2045 free_scope (pscope);
2046 }
2047 }
2048
2049 cur_file_ptr->nested_scopes += scope_delta;
2050
2051 if (debug && type != st_File
2052 && (debug > 2 || type == st_Block || type == st_End
2053 || type == st_Proc || type == st_StaticProc))
2054 {
2055 char *sc_str = sc_to_string (storage);
2056 char *st_str = st_to_string (type);
2057 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2058
2059 fprintf (stderr,
2060 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2061 value, depth, sc_str);
2062
2063 if (str_start && str_end_p1 - str_start > 0)
2064 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2065 else
2066 {
2067 Size_t len = strlen (st_str);
2068 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2069 }
2070 }
2071
2072 return ret;
2073 }
2074
2075 \f
2076 /* Add an external symbol. */
2077
2078 STATIC symint_t
2079 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2080 const char *str_start; /* first byte in string */
2081 const char *str_end_p1; /* first byte after string */
2082 st_t type; /* symbol type */
2083 sc_t storage; /* storage class */
2084 long value; /* value of symbol */
2085 symint_t indx; /* index to local/aux. syms */
2086 int ifd; /* file index */
2087 {
2088 register EXTR *psym;
2089 register varray_t *vp = &ext_symbols;
2090 shash_t *hash_ptr = (shash_t *)0;
2091
2092 if (debug > 1)
2093 {
2094 char *sc_str = sc_to_string (storage);
2095 char *st_str = st_to_string (type);
2096
2097 fprintf (stderr,
2098 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2099 value, ifd, sc_str);
2100
2101 if (str_start && str_end_p1 - str_start > 0)
2102 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2103 else
2104 fprintf (stderr, " st= %s\n", st_str);
2105 }
2106
2107 if (vp->objects_last_page == vp->objects_per_page)
2108 add_varray_page (vp);
2109
2110 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2111
2112 psym->ifd = ifd;
2113 psym->asym.value = value;
2114 psym->asym.st = (unsigned) type;
2115 psym->asym.sc = (unsigned) storage;
2116 psym->asym.index = indx;
2117 psym->asym.iss = (str_start == (const char *)0)
2118 ? 0
2119 : add_string (&ext_strings,
2120 &ext_str_hash[0],
2121 str_start,
2122 str_end_p1,
2123 &hash_ptr);
2124
2125 hash_ptr->esym_ptr = psym;
2126 return vp->num_allocated++;
2127 }
2128
2129 \f
2130 /* Add an auxiliary symbol (passing a symint). */
2131
2132 STATIC symint_t
2133 add_aux_sym_symint (aux_word)
2134 symint_t aux_word; /* auxiliary information word */
2135 {
2136 register AUXU *aux_ptr;
2137 register efdr_t *file_ptr = cur_file_ptr;
2138 register varray_t *vp = &file_ptr->aux_syms;
2139
2140 if (vp->objects_last_page == vp->objects_per_page)
2141 add_varray_page (vp);
2142
2143 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2144 aux_ptr->isym = aux_word;
2145
2146 return vp->num_allocated++;
2147 }
2148
2149
2150 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2151
2152 STATIC symint_t
2153 add_aux_sym_rndx (file_index, sym_index)
2154 int file_index;
2155 symint_t sym_index;
2156 {
2157 register AUXU *aux_ptr;
2158 register efdr_t *file_ptr = cur_file_ptr;
2159 register varray_t *vp = &file_ptr->aux_syms;
2160
2161 if (vp->objects_last_page == vp->objects_per_page)
2162 add_varray_page (vp);
2163
2164 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2165 aux_ptr->rndx.rfd = file_index;
2166 aux_ptr->rndx.index = sym_index;
2167
2168 return vp->num_allocated++;
2169 }
2170
2171 \f
2172 /* Add an auxiliary symbol (passing the basic type and possibly
2173 type qualifiers). */
2174
2175 STATIC symint_t
2176 add_aux_sym_tir (t, state, hash_tbl)
2177 type_info_t *t; /* current type information */
2178 hash_state_t state; /* whether to hash type or not */
2179 thash_t **hash_tbl; /* pointer to hash table to use */
2180 {
2181 register AUXU *aux_ptr;
2182 register efdr_t *file_ptr = cur_file_ptr;
2183 register varray_t *vp = &file_ptr->aux_syms;
2184 static AUXU init_aux;
2185 symint_t ret;
2186 int i;
2187 AUXU aux;
2188
2189 aux = init_aux;
2190 aux.ti.bt = (int) t->basic_type;
2191 aux.ti.continued = 0;
2192 aux.ti.fBitfield = t->bitfield;
2193
2194 aux.ti.tq0 = (int) t->type_qualifiers[0];
2195 aux.ti.tq1 = (int) t->type_qualifiers[1];
2196 aux.ti.tq2 = (int) t->type_qualifiers[2];
2197 aux.ti.tq3 = (int) t->type_qualifiers[3];
2198 aux.ti.tq4 = (int) t->type_qualifiers[4];
2199 aux.ti.tq5 = (int) t->type_qualifiers[5];
2200
2201
2202 /* For anything that adds additional information, we must not hash,
2203 so check here, and reset our state. */
2204
2205 if (state != hash_no
2206 && (t->type_qualifiers[0] == tq_Array
2207 || t->type_qualifiers[1] == tq_Array
2208 || t->type_qualifiers[2] == tq_Array
2209 || t->type_qualifiers[3] == tq_Array
2210 || t->type_qualifiers[4] == tq_Array
2211 || t->type_qualifiers[5] == tq_Array
2212 || t->basic_type == bt_Struct
2213 || t->basic_type == bt_Union
2214 || t->basic_type == bt_Enum
2215 || t->bitfield
2216 || t->num_dims > 0))
2217 state = hash_no;
2218
2219 /* See if we can hash this type, and save some space, but some types
2220 can't be hashed (because they contain arrays or continuations),
2221 and others can be put into the hash list, but cannot use existing
2222 types because other aux entries precede this one. */
2223
2224 if (state != hash_no)
2225 {
2226 register thash_t *hash_ptr;
2227 register symint_t hi;
2228
2229 hi = aux.isym & ((1 << HASHBITS) - 1);
2230 hi %= THASH_SIZE;
2231
2232 for (hash_ptr = hash_tbl[hi];
2233 hash_ptr != (thash_t *)0;
2234 hash_ptr = hash_ptr->next)
2235 {
2236 if (aux.isym == hash_ptr->type.isym)
2237 break;
2238 }
2239
2240 if (hash_ptr != (thash_t *)0 && state == hash_yes)
2241 return hash_ptr->indx;
2242
2243 if (hash_ptr == (thash_t *)0)
2244 {
2245 hash_ptr = allocate_thash ();
2246 hash_ptr->next = hash_tbl[hi];
2247 hash_ptr->type = aux;
2248 hash_ptr->indx = vp->num_allocated;
2249 hash_tbl[hi] = hash_ptr;
2250 }
2251 }
2252
2253 /* Everything is set up, add the aux symbol. */
2254 if (vp->objects_last_page == vp->objects_per_page)
2255 add_varray_page (vp);
2256
2257 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2258 *aux_ptr = aux;
2259
2260 ret = vp->num_allocated++;
2261
2262 /* Add bitfield length if it exists.
2263
2264 NOTE: Mips documentation claims bitfield goes at the end of the
2265 AUX record, but the DECstation compiler emits it here.
2266 (This would only make a difference for enum bitfields.)
2267
2268 Also note: We use the last size given since gcc may emit 2
2269 for an enum bitfield. */
2270
2271 if (t->bitfield)
2272 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2273
2274
2275 /* Add tag information if needed. Structure, union, and enum
2276 references add 2 aux symbols: a [file index, symbol index]
2277 pointer to the structure type, and the current file index. */
2278
2279 if (t->basic_type == bt_Struct
2280 || t->basic_type == bt_Union
2281 || t->basic_type == bt_Enum)
2282 {
2283 register symint_t file_index = t->tag_ptr->ifd;
2284 register symint_t sym_index = t->tag_ptr->indx;
2285
2286 if (t->unknown_tag)
2287 {
2288 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2289 (void) add_aux_sym_symint ((symint_t)-1);
2290 }
2291 else if (sym_index != indexNil)
2292 {
2293 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2294 (void) add_aux_sym_symint (file_index);
2295 }
2296 else
2297 {
2298 register forward_t *forward_ref = allocate_forward ();
2299
2300 forward_ref->type_ptr = aux_ptr;
2301 forward_ref->next = t->tag_ptr->forward_ref;
2302 t->tag_ptr->forward_ref = forward_ref;
2303
2304 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2305 forward_ref->index_ptr
2306 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2307
2308 (void) add_aux_sym_symint (file_index);
2309 forward_ref->ifd_ptr
2310 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2311 }
2312 }
2313
2314 /* Add information about array bounds if they exist. */
2315 for (i = 0; i < t->num_dims; i++)
2316 {
2317 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2318 cur_file_ptr->int_type);
2319
2320 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2321 (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2322 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2323 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2324 ? 0
2325 : (t->sizes[i] * 8) / t->dimensions[i]);
2326 };
2327
2328 /* NOTE: Mips documentation claism that the bitfield width goes here.
2329 But it needs to be emitted earlier. */
2330
2331 return ret;
2332 }
2333
2334 \f
2335 /* Add a tag to the tag table (unless it already exists). */
2336
2337 STATIC tag_t *
2338 get_tag (tag_start, tag_end_p1, indx, basic_type)
2339 const char *tag_start; /* 1st byte of tag name */
2340 const char *tag_end_p1; /* 1st byte after tag name */
2341 symint_t indx; /* index of tag start block */
2342 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2343 {
2344 shash_t *hash_ptr;
2345 tag_t *tag_ptr;
2346 hash_ptr = hash_string (tag_start,
2347 tag_end_p1 - tag_start,
2348 &tag_hash[0],
2349 (symint_t *)0);
2350
2351 if (hash_ptr != (shash_t *)0
2352 && hash_ptr->tag_ptr != (tag_t *)0)
2353 {
2354 tag_ptr = hash_ptr->tag_ptr;
2355 if (indx != indexNil)
2356 {
2357 tag_ptr->basic_type = basic_type;
2358 tag_ptr->ifd = cur_file_ptr->file_index;
2359 tag_ptr->indx = indx;
2360 }
2361 return tag_ptr;
2362 }
2363
2364 (void) add_string (&tag_strings,
2365 &tag_hash[0],
2366 tag_start,
2367 tag_end_p1,
2368 &hash_ptr);
2369
2370 tag_ptr = allocate_tag ();
2371 tag_ptr->forward_ref = (forward_t *) 0;
2372 tag_ptr->hash_ptr = hash_ptr;
2373 tag_ptr->same_name = hash_ptr->tag_ptr;
2374 tag_ptr->basic_type = basic_type;
2375 tag_ptr->indx = indx;
2376 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2377 tag_ptr->same_block = cur_tag_head->first_tag;
2378
2379 cur_tag_head->first_tag = tag_ptr;
2380 hash_ptr->tag_ptr = tag_ptr;
2381
2382 return tag_ptr;
2383 }
2384
2385 \f
2386 /* Add an unknown {struct, union, enum} tag. */
2387
2388 STATIC void
2389 add_unknown_tag (ptag)
2390 tag_t *ptag; /* pointer to tag information */
2391 {
2392 shash_t *hash_ptr = ptag->hash_ptr;
2393 char *name_start = hash_ptr->string;
2394 char *name_end_p1 = name_start + hash_ptr->len;
2395 forward_t *f_next = ptag->forward_ref;
2396 forward_t *f_cur;
2397 int sym_index;
2398 int file_index = cur_file_ptr->file_index;
2399
2400 if (debug > 1)
2401 {
2402 char *agg_type = "{unknown aggregate type}";
2403 switch (ptag->basic_type)
2404 {
2405 case bt_Struct: agg_type = "struct"; break;
2406 case bt_Union: agg_type = "union"; break;
2407 case bt_Enum: agg_type = "enum"; break;
2408 default: break;
2409 }
2410
2411 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2412 hash_ptr->len, name_start);
2413 }
2414
2415 sym_index = add_local_symbol (name_start,
2416 name_end_p1,
2417 st_Block,
2418 sc_Info,
2419 (symint_t)0,
2420 (symint_t)0);
2421
2422 (void) add_local_symbol (name_start,
2423 name_end_p1,
2424 st_End,
2425 sc_Info,
2426 (symint_t)0,
2427 (symint_t)0);
2428
2429 while (f_next != (forward_t *)0)
2430 {
2431 f_cur = f_next;
2432 f_next = f_next->next;
2433
2434 f_cur->ifd_ptr->isym = file_index;
2435 f_cur->index_ptr->rndx.index = sym_index;
2436
2437 free_forward (f_cur);
2438 }
2439
2440 return;
2441 }
2442
2443 \f
2444 /* Add a procedure to the current file's list of procedures, and record
2445 this is the current procedure. If the assembler created a PDR for
2446 this procedure, use that to initialize the current PDR. */
2447
2448 STATIC void
2449 add_procedure (func_start, func_end_p1)
2450 const char *func_start; /* 1st byte of func name */
2451 const char *func_end_p1; /* 1st byte after func name */
2452 {
2453 register PDR *new_proc_ptr;
2454 register efdr_t *file_ptr = cur_file_ptr;
2455 register varray_t *vp = &file_ptr->procs;
2456 register symint_t value = 0;
2457 register st_t proc_type = st_Proc;
2458 register shash_t *shash_ptr = hash_string (func_start,
2459 func_end_p1 - func_start,
2460 &orig_str_hash[0],
2461 (symint_t *)0);
2462
2463 if (debug)
2464 fputc ('\n', stderr);
2465
2466 if (vp->objects_last_page == vp->objects_per_page)
2467 add_varray_page (vp);
2468
2469 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2470
2471 vp->num_allocated++;
2472
2473
2474 /* Did the assembler create this procedure? If so, get the PDR information. */
2475 cur_oproc_ptr = (PDR *)0;
2476 if (shash_ptr != (shash_t *)0)
2477 {
2478 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2479 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2480
2481 if (old_proc_ptr != (PDR *)0
2482 && sym_ptr != (SYMR *)0
2483 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2484 {
2485 cur_oproc_begin = sym_ptr;
2486 cur_oproc_end = shash_ptr->end_ptr;
2487 value = sym_ptr->value;
2488
2489 cur_oproc_ptr = old_proc_ptr;
2490 proc_type = (st_t)sym_ptr->st;
2491 *new_proc_ptr = *old_proc_ptr; /* initialize */
2492 }
2493 }
2494
2495 if (cur_oproc_ptr == (PDR *)0)
2496 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2497
2498 /* Determine the start of symbols. */
2499 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2500
2501 /* Push the start of the function. */
2502 (void) add_local_symbol (func_start, func_end_p1,
2503 proc_type, sc_Text,
2504 value,
2505 (symint_t)0);
2506 }
2507
2508 \f
2509 /* Add a new filename, and set up all of the file relative
2510 virtual arrays (strings, symbols, aux syms, etc.). Record
2511 where the current file structure lives. */
2512
2513 STATIC void
2514 add_file (file_start, file_end_p1)
2515 const char *file_start; /* first byte in string */
2516 const char *file_end_p1; /* first byte after string */
2517 {
2518 static char zero_bytes[2] = { '\0', '\0' };
2519
2520 register Ptrdiff_t len = file_end_p1 - file_start;
2521 register int first_ch = *file_start;
2522 register efdr_t *file_ptr;
2523
2524 if (debug)
2525 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2526
2527 /* See if the file has already been created. */
2528 for (file_ptr = first_file;
2529 file_ptr != (efdr_t *)0;
2530 file_ptr = file_ptr->next_file)
2531 {
2532 if (first_ch == file_ptr->name[0]
2533 && file_ptr->name[len] == '\0'
2534 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2535 {
2536 cur_file_ptr = file_ptr;
2537 break;
2538 }
2539 }
2540
2541 /* If this is a new file, create it. */
2542 if (file_ptr == (efdr_t *)0)
2543 {
2544 if (file_desc.objects_last_page == file_desc.objects_per_page)
2545 add_varray_page (&file_desc);
2546
2547 file_ptr = cur_file_ptr =
2548 &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2549 *file_ptr = init_file;
2550
2551 file_ptr->file_index = file_desc.num_allocated++;
2552
2553 /* Allocate the string hash table. */
2554 file_ptr->shash_head = (shash_t **) allocate_page ();
2555
2556 /* Make sure 0 byte in string table is null */
2557 add_string (&file_ptr->strings,
2558 &file_ptr->shash_head[0],
2559 &zero_bytes[0],
2560 &zero_bytes[0],
2561 (shash_t **)0);
2562
2563 if (file_end_p1 - file_start > PAGE_USIZE-2)
2564 fatal ("Filename goes over one page boundary.");
2565
2566 /* Push the start of the filename. We assume that the filename
2567 will be stored at string offset 1. */
2568 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2569 (symint_t)0, (symint_t)0);
2570 file_ptr->fdr.rss = 1;
2571 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2572 file_ptr->name_len = file_end_p1 - file_start;
2573
2574 /* Update the linked list of file descriptors. */
2575 *last_file_ptr = file_ptr;
2576 last_file_ptr = &file_ptr->next_file;
2577
2578 /* Add void & int types to the file (void should be first to catch
2579 errant 0's within the index fields). */
2580 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2581 hash_yes,
2582 &cur_file_ptr->thash_head[0]);
2583
2584 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2585 hash_yes,
2586 &cur_file_ptr->thash_head[0]);
2587 }
2588 }
2589
2590 \f
2591 /* Add a stream of random bytes to a varray. */
2592
2593 STATIC void
2594 add_bytes (vp, input_ptr, nitems)
2595 varray_t *vp; /* virtual array to add too */
2596 char *input_ptr; /* start of the bytes */
2597 Size_t nitems; /* # items to move */
2598 {
2599 register Size_t move_items;
2600 register Size_t move_bytes;
2601 register char *ptr;
2602
2603 while (nitems > 0)
2604 {
2605 if (vp->objects_last_page >= vp->objects_per_page)
2606 add_varray_page (vp);
2607
2608 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2609 move_items = vp->objects_per_page - vp->objects_last_page;
2610 if (move_items > nitems)
2611 move_items = nitems;
2612
2613 move_bytes = move_items * vp->object_size;
2614 nitems -= move_items;
2615
2616 if (move_bytes >= 32)
2617 {
2618 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2619 input_ptr += move_bytes;
2620 }
2621 else
2622 {
2623 while (move_bytes-- > 0)
2624 *ptr++ = *input_ptr++;
2625 }
2626 }
2627 }
2628
2629 \f
2630 /* Convert storage class to string. */
2631
2632 STATIC char *
2633 sc_to_string(storage_class)
2634 sc_t storage_class;
2635 {
2636 switch(storage_class)
2637 {
2638 case sc_Nil: return "Nil,";
2639 case sc_Text: return "Text,";
2640 case sc_Data: return "Data,";
2641 case sc_Bss: return "Bss,";
2642 case sc_Register: return "Register,";
2643 case sc_Abs: return "Abs,";
2644 case sc_Undefined: return "Undefined,";
2645 case sc_CdbLocal: return "CdbLocal,";
2646 case sc_Bits: return "Bits,";
2647 case sc_CdbSystem: return "CdbSystem,";
2648 case sc_RegImage: return "RegImage,";
2649 case sc_Info: return "Info,";
2650 case sc_UserStruct: return "UserStruct,";
2651 case sc_SData: return "SData,";
2652 case sc_SBss: return "SBss,";
2653 case sc_RData: return "RData,";
2654 case sc_Var: return "Var,";
2655 case sc_Common: return "Common,";
2656 case sc_SCommon: return "SCommon,";
2657 case sc_VarRegister: return "VarRegister,";
2658 case sc_Variant: return "Variant,";
2659 case sc_SUndefined: return "SUndefined,";
2660 case sc_Init: return "Init,";
2661 case sc_Max: return "Max,";
2662 }
2663
2664 return "???,";
2665 }
2666
2667 \f
2668 /* Convert symbol type to string. */
2669
2670 STATIC char *
2671 st_to_string(symbol_type)
2672 st_t symbol_type;
2673 {
2674 switch(symbol_type)
2675 {
2676 case st_Nil: return "Nil,";
2677 case st_Global: return "Global,";
2678 case st_Static: return "Static,";
2679 case st_Param: return "Param,";
2680 case st_Local: return "Local,";
2681 case st_Label: return "Label,";
2682 case st_Proc: return "Proc,";
2683 case st_Block: return "Block,";
2684 case st_End: return "End,";
2685 case st_Member: return "Member,";
2686 case st_Typedef: return "Typedef,";
2687 case st_File: return "File,";
2688 case st_RegReloc: return "RegReloc,";
2689 case st_Forward: return "Forward,";
2690 case st_StaticProc: return "StaticProc,";
2691 case st_Constant: return "Constant,";
2692 case st_Str: return "String,";
2693 case st_Number: return "Number,";
2694 case st_Expr: return "Expr,";
2695 case st_Type: return "Type,";
2696 case st_Max: return "Max,";
2697 }
2698
2699 return "???,";
2700 }
2701
2702 \f
2703 /* Read a line from standard input, and return the start of the buffer
2704 (which is grows if the line is too big). We split lines at the
2705 semi-colon, and return each logical line independently. */
2706
2707 STATIC char *
2708 read_line __proto((void))
2709 {
2710 static int line_split_p = 0;
2711 register int string_p = 0;
2712 register int comment_p = 0;
2713 register int ch;
2714 register char *ptr;
2715
2716 if (cur_line_start == (char *)0)
2717 { /* allocate initial page */
2718 cur_line_start = (char *) allocate_page ();
2719 cur_line_alloc = PAGE_SIZE;
2720 }
2721
2722 if (!line_split_p)
2723 line_number++;
2724
2725 line_split_p = 0;
2726 cur_line_nbytes = 0;
2727
2728 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2729 {
2730 if (++cur_line_nbytes >= cur_line_alloc-1)
2731 {
2732 register int num_pages = cur_line_alloc / PAGE_SIZE;
2733 register char *old_buffer = cur_line_start;
2734
2735 cur_line_alloc += PAGE_SIZE;
2736 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2737 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2738
2739 ptr = cur_line_start + cur_line_nbytes - 1;
2740 }
2741
2742 if (ch == '\n')
2743 {
2744 *ptr++ = '\n';
2745 *ptr = '\0';
2746 cur_line_ptr = cur_line_start;
2747 return cur_line_ptr;
2748 }
2749
2750 else if (ch == '\0')
2751 error ("Null character found in input");
2752
2753 else if (!comment_p)
2754 {
2755 if (ch == '"')
2756 string_p = !string_p;
2757
2758 else if (ch == '#')
2759 comment_p++;
2760
2761 else if (ch == ';' && !string_p)
2762 {
2763 line_split_p = 1;
2764 *ptr++ = '\n';
2765 *ptr = '\0';
2766 cur_line_ptr = cur_line_start;
2767 return cur_line_ptr;
2768 }
2769 }
2770 }
2771
2772 if (ferror (stdin))
2773 pfatal_with_name (input_name);
2774
2775 cur_line_ptr = (char *)0;
2776 return (char *)0;
2777 }
2778
2779 \f
2780 /* Parse #.begin directives which have a label as the first argument
2781 which gives the location of the start of the block. */
2782
2783 STATIC void
2784 parse_begin (start)
2785 const char *start; /* start of directive */
2786 {
2787 const char *end_p1; /* end of label */
2788 int ch;
2789 shash_t *hash_ptr; /* hash pointer to lookup label */
2790
2791 if (cur_file_ptr == (efdr_t *)0)
2792 {
2793 error ("#.begin directive without a preceding .file directive");
2794 return;
2795 }
2796
2797 if (cur_proc_ptr == (PDR *)0)
2798 {
2799 error ("#.begin directive without a preceding .ent directive");
2800 return;
2801 }
2802
2803 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2804 ;
2805
2806 hash_ptr = hash_string (start,
2807 end_p1 - start,
2808 &orig_str_hash[0],
2809 (symint_t *)0);
2810
2811 if (hash_ptr == (shash_t *)0)
2812 {
2813 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2814 return;
2815 }
2816
2817 if (cur_oproc_begin == (SYMR *)0)
2818 {
2819 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2820 return;
2821 }
2822
2823 (void) add_local_symbol ((const char *)0, (const char *)0,
2824 st_Block, sc_Text,
2825 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2826 (symint_t)0);
2827 }
2828
2829 \f
2830 /* Parse #.bend directives which have a label as the first argument
2831 which gives the location of the end of the block. */
2832
2833 STATIC void
2834 parse_bend (start)
2835 const char *start; /* start of directive */
2836 {
2837 const char *end_p1; /* end of label */
2838 int ch;
2839 shash_t *hash_ptr; /* hash pointer to lookup label */
2840
2841 if (cur_file_ptr == (efdr_t *)0)
2842 {
2843 error ("#.begin directive without a preceding .file directive");
2844 return;
2845 }
2846
2847 if (cur_proc_ptr == (PDR *)0)
2848 {
2849 error ("#.bend directive without a preceding .ent directive");
2850 return;
2851 }
2852
2853 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2854 ;
2855
2856 hash_ptr = hash_string (start,
2857 end_p1 - start,
2858 &orig_str_hash[0],
2859 (symint_t *)0);
2860
2861 if (hash_ptr == (shash_t *)0)
2862 {
2863 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2864 return;
2865 }
2866
2867 if (cur_oproc_begin == (SYMR *)0)
2868 {
2869 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2870 return;
2871 }
2872
2873 (void) add_local_symbol ((const char *)0, (const char *)0,
2874 st_End, sc_Text,
2875 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2876 (symint_t)0);
2877 }
2878
2879 \f
2880 /* Parse #.def directives, which are contain standard COFF subdirectives
2881 to describe the debugging format. These subdirectives include:
2882
2883 .scl specify storage class
2884 .val specify a value
2885 .endef specify end of COFF directives
2886 .type specify the type
2887 .size specify the size of an array
2888 .dim specify an array dimension
2889 .tag specify a tag for a struct, union, or enum. */
2890
2891 STATIC void
2892 parse_def (name_start)
2893 const char *name_start; /* start of directive */
2894 {
2895 const char *dir_start; /* start of current directive*/
2896 const char *dir_end_p1; /* end+1 of current directive*/
2897 const char *arg_start; /* start of current argument */
2898 const char *arg_end_p1; /* end+1 of current argument */
2899 const char *name_end_p1; /* end+1 of label */
2900 const char *tag_start = (const char *)0; /* start of tag name */
2901 const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2902 sc_t storage_class = sc_Nil;
2903 st_t symbol_type = st_Nil;
2904 type_info_t t;
2905 EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2906 int is_function = 0; /* != 0 if function */
2907 symint_t value = 0;
2908 symint_t indx = cur_file_ptr->void_type;
2909 int error_line = 0;
2910 symint_t arg_number;
2911 symint_t temp_array[ N_TQ ];
2912 int arg_was_number;
2913 int ch, i;
2914 Ptrdiff_t len;
2915
2916 static int inside_enumeration = 0; /* is this an enumeration? */
2917
2918
2919 /* Initialize the type information. */
2920 t = type_info_init;
2921
2922
2923 /* Search for the end of the name being defined. */
2924 /* Allow spaces and such in names for G++ templates, which produce stabs
2925 that look like:
2926
2927 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2928
2929 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' || ch == '\0'; name_end_p1++)
2930 ;
2931
2932 if (ch == '\0')
2933 {
2934 error_line = __LINE__;
2935 saber_stop ();
2936 goto bomb_out;
2937 }
2938
2939 /* Parse the remaining subdirectives now. */
2940 dir_start = name_end_p1+1;
2941 for (;;)
2942 {
2943 while ((ch = *dir_start) == ' ' || ch == '\t')
2944 ++dir_start;
2945
2946 if (ch != '.')
2947 {
2948 error_line = __LINE__;
2949 saber_stop ();
2950 goto bomb_out;
2951 }
2952
2953 /* Are we done? */
2954 if (dir_start[1] == 'e'
2955 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2956 break;
2957
2958 /* Pick up the subdirective now */
2959 for (dir_end_p1 = dir_start+1;
2960 (ch = *dir_end_p1) != ' ' && ch != '\t';
2961 dir_end_p1++)
2962 {
2963 if (ch == '\0' || isspace (ch))
2964 {
2965 error_line = __LINE__;
2966 saber_stop ();
2967 goto bomb_out;
2968 }
2969 }
2970
2971 /* Pick up the subdirective argument now. */
2972 arg_was_number = arg_number = 0;
2973 arg_end_p1 = (const char *)0;
2974 arg_start = dir_end_p1+1;
2975 ch = *arg_start;
2976 while (ch == ' ' || ch == '\t')
2977 ch = *++arg_start;
2978
2979 if (isdigit (ch) || ch == '-' || ch == '+')
2980 {
2981 int ch2;
2982 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2983 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2984 arg_was_number++;
2985 }
2986
2987 else if (ch == '\0' || isspace (ch))
2988 {
2989 error_line = __LINE__;
2990 saber_stop ();
2991 goto bomb_out;
2992 }
2993
2994 if (!arg_was_number)
2995 for (arg_end_p1 = arg_start+1; (ch = *arg_end_p1) != ';'; arg_end_p1++)
2996 {
2997 if (ch == '\0' || isspace (ch))
2998 {
2999 error_line = __LINE__;
3000 saber_stop ();
3001 goto bomb_out;
3002 }
3003 }
3004
3005
3006 /* Classify the directives now. */
3007 len = dir_end_p1 - dir_start;
3008 switch (dir_start[1])
3009 {
3010 default:
3011 error_line = __LINE__;
3012 saber_stop ();
3013 goto bomb_out;
3014
3015 case 'd':
3016 if (len == sizeof (".dim")-1
3017 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3018 && arg_was_number)
3019 {
3020 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3021
3022 *t_ptr = arg_number;
3023 while (*arg_end_p1 == ',' && arg_was_number)
3024 {
3025 arg_start = arg_end_p1+1;
3026 ch = *arg_start;
3027 while (ch == ' ' || ch == '\t')
3028 ch = *++arg_start;
3029
3030 arg_was_number = 0;
3031 if (isdigit (ch) || ch == '-' || ch == '+')
3032 {
3033 int ch2;
3034 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3035 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3036 arg_was_number++;
3037
3038 if (t_ptr == &temp_array[0])
3039 {
3040 error_line = __LINE__;
3041 saber_stop ();
3042 goto bomb_out;
3043 }
3044
3045 *--t_ptr = arg_number;
3046 }
3047 }
3048
3049 /* Reverse order of dimensions. */
3050 while (t_ptr <= &temp_array[ N_TQ-1 ])
3051 {
3052 if (t.num_dims >= N_TQ-1)
3053 {
3054 error_line = __LINE__;
3055 saber_stop ();
3056 goto bomb_out;
3057 }
3058
3059 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3060 }
3061 break;
3062 }
3063 else
3064 {
3065 error_line = __LINE__;
3066 saber_stop ();
3067 goto bomb_out;
3068 }
3069
3070
3071 case 's':
3072 if (len == sizeof (".scl")-1
3073 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3074 && arg_was_number
3075 && arg_number < ((symint_t) C_MAX))
3076 {
3077 /* If the symbol is a static or external, we have
3078 already gotten the appropriate type and class, so
3079 make sure we don't override those values. This is
3080 needed because there are some type and classes that
3081 are not in COFF, such as short data, etc. */
3082 if (symbol_type == st_Nil)
3083 {
3084 symbol_type = map_coff_sym_type[arg_number];
3085 storage_class = map_coff_storage [arg_number];
3086 }
3087 break;
3088 }
3089
3090 else if (len == sizeof (".size")-1
3091 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3092 && arg_was_number)
3093 {
3094 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3095
3096 *t_ptr = arg_number;
3097 while (*arg_end_p1 == ',' && arg_was_number)
3098 {
3099 arg_start = arg_end_p1+1;
3100 ch = *arg_start;
3101 while (ch == ' ' || ch == '\t')
3102 ch = *++arg_start;
3103
3104 arg_was_number = 0;
3105 if (isdigit (ch) || ch == '-' || ch == '+')
3106 {
3107 int ch2;
3108 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3109 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3110 arg_was_number++;
3111
3112 if (t_ptr == &temp_array[0])
3113 {
3114 error_line = __LINE__;
3115 saber_stop ();
3116 goto bomb_out;
3117 }
3118
3119 *--t_ptr = arg_number;
3120 }
3121 }
3122
3123 /* Reverse order of sizes. */
3124 while (t_ptr <= &temp_array[ N_TQ-1 ])
3125 {
3126 if (t.num_sizes >= N_TQ-1)
3127 {
3128 error_line = __LINE__;
3129 saber_stop ();
3130 goto bomb_out;
3131 }
3132
3133 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3134 }
3135 break;
3136 }
3137
3138 else
3139 {
3140 error_line = __LINE__;
3141 saber_stop ();
3142 goto bomb_out;
3143 }
3144
3145
3146 case 't':
3147 if (len == sizeof (".type")-1
3148 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3149 && arg_was_number)
3150 {
3151 tq_t *tq_ptr = &t.type_qualifiers[0];
3152
3153 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3154 t.basic_type = map_coff_types [(int)t.orig_type];
3155 for (i = N_TQ-1; i >= 0; i--)
3156 {
3157 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3158 & N_TMASK);
3159
3160 if (dt != (int)DT_NON)
3161 *tq_ptr++ = map_coff_derived_type [dt];
3162 }
3163
3164 /* If this is a function, ignore it, so that we don't get
3165 two entries (one from the .ent, and one for the .def
3166 that precedes it). Save the type information so that
3167 the end block can properly add it after the begin block
3168 index. For MIPS knows what reason, we must strip off
3169 the function type at this point. */
3170 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3171 {
3172 is_function = 1;
3173 tq_ptr[-1] = tq_Nil;
3174 }
3175
3176 break;
3177 }
3178
3179 else if (len == sizeof (".tag")-1
3180 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3181 {
3182 tag_start = arg_start;
3183 tag_end_p1 = arg_end_p1;
3184 break;
3185 }
3186
3187 else
3188 {
3189 error_line = __LINE__;
3190 saber_stop ();
3191 goto bomb_out;
3192 }
3193
3194
3195 case 'v':
3196 if (len == sizeof (".val")-1
3197 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3198 {
3199 if (arg_was_number)
3200 value = arg_number;
3201
3202 /* If the value is not an integer value, it must be the
3203 name of a static or global item. Look up the name in
3204 the original symbol table to pick up the storage
3205 class, symbol type, etc. */
3206 else
3207 {
3208 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3209 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3210
3211 ext_hash_ptr = hash_string (arg_start,
3212 arg_end_p1 - arg_start,
3213 &ext_str_hash[0],
3214 (symint_t *)0);
3215
3216 if (ext_hash_ptr != (shash_t *)0
3217 && ext_hash_ptr->esym_ptr != (EXTR *)0)
3218 eptr = ext_hash_ptr->esym_ptr;
3219
3220 orig_hash_ptr = hash_string (arg_start,
3221 arg_end_p1 - arg_start,
3222 &orig_str_hash[0],
3223 (symint_t *)0);
3224
3225 if ((orig_hash_ptr == (shash_t *)0
3226 || orig_hash_ptr->sym_ptr == (SYMR *)0)
3227 && eptr == (EXTR *)0)
3228 {
3229 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3230 arg_end_p1 - arg_start,
3231 arg_start);
3232 value = 0;
3233 }
3234 else
3235 {
3236 SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3237 && orig_hash_ptr->sym_ptr != (SYMR *)0)
3238 ? orig_hash_ptr->sym_ptr
3239 : &eptr->asym;
3240
3241 symbol_type = (st_t) ptr->st;
3242 storage_class = (sc_t) ptr->sc;
3243 value = ptr->value;
3244 }
3245 }
3246 break;
3247 }
3248 else
3249 {
3250 error_line = __LINE__;
3251 saber_stop ();
3252 goto bomb_out;
3253 }
3254 }
3255
3256 /* Set up to find next directive. */
3257 dir_start = arg_end_p1 + 1;
3258 }
3259
3260
3261 t.extra_sizes = (tag_start != (char *)0);
3262 if (t.num_dims > 0)
3263 {
3264 int diff = t.num_dims - t.num_sizes;
3265 int i = t.num_dims - 1;
3266 int j;
3267
3268 if (t.num_sizes != 1 || diff < 0)
3269 {
3270 error_line = __LINE__;
3271 saber_stop ();
3272 goto bomb_out;
3273 }
3274
3275 /* If this is an array, make sure the same number of dimensions
3276 and sizes were passed, creating extra sizes for multiply
3277 dimensioned arrays if not passed. */
3278
3279 t.extra_sizes = 0;
3280 if (diff)
3281 {
3282 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3283 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3284
3285 t.num_sizes = i + 1;
3286 for ( i--; i >= 0; i-- )
3287 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3288 }
3289 }
3290
3291 else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3292 { /* Is this a bitfield? This is indicated by a structure memeber
3293 having a size field that isn't an array. */
3294
3295 t.bitfield = 1;
3296 }
3297
3298
3299 /* Except for enumeration members & begin/ending of scopes, put the
3300 type word in the aux. symbol table. */
3301
3302 if (symbol_type == st_Block || symbol_type == st_End)
3303 indx = 0;
3304
3305 else if (inside_enumeration)
3306 indx = cur_file_ptr->void_type;
3307
3308 else
3309 {
3310 if (t.basic_type == bt_Struct
3311 || t.basic_type == bt_Union
3312 || t.basic_type == bt_Enum)
3313 {
3314 if (tag_start == (char *)0)
3315 {
3316 error ("No tag specified for %.*s",
3317 name_end_p1 - name_start,
3318 name_start);
3319 return;
3320 }
3321
3322 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3323 t.basic_type);
3324 }
3325
3326 if (is_function)
3327 {
3328 last_func_type_info = t;
3329 last_func_eptr = eptr;
3330 return;
3331 }
3332
3333 indx = add_aux_sym_tir (&t,
3334 hash_yes,
3335 &cur_file_ptr->thash_head[0]);
3336 }
3337
3338
3339 /* If this is an external or static symbol, update the appropriate
3340 external symbol. */
3341
3342 if (eptr != (EXTR *)0
3343 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3344 {
3345 eptr->ifd = cur_file_ptr->file_index;
3346 eptr->asym.index = indx;
3347 }
3348
3349
3350 /* Do any last minute adjustments that are necessary. */
3351 switch (symbol_type)
3352 {
3353 default:
3354 break;
3355
3356
3357 /* For the beginning of structs, unions, and enumerations, the
3358 size info needs to be passed in the value field. */
3359
3360 case st_Block:
3361 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3362 {
3363 error_line = __LINE__;
3364 saber_stop ();
3365 goto bomb_out;
3366 }
3367
3368 else
3369 value = t.sizes[0];
3370
3371 inside_enumeration = (t.orig_type == T_ENUM);
3372 break;
3373
3374
3375 /* For the end of structs, unions, and enumerations, omit the
3376 name which is always ".eos". This needs to be done last, so
3377 that any error reporting above gives the correct name. */
3378
3379 case st_End:
3380 name_start = name_end_p1 = (const char *)0;
3381 value = inside_enumeration = 0;
3382 break;
3383
3384
3385 /* Members of structures and unions that aren't bitfields, need
3386 to adjust the value from a byte offset to a bit offset.
3387 Members of enumerations do not have the value adjusted, and
3388 can be distinguished by indx == indexNil. For enumerations,
3389 update the maximum enumeration value. */
3390
3391 case st_Member:
3392 if (!t.bitfield && !inside_enumeration)
3393 value *= 8;
3394
3395 break;
3396 }
3397
3398
3399 /* Add the symbol, except for global symbols outside of functions,
3400 for which the external symbol table is fine enough. */
3401
3402 if (eptr == (EXTR *)0
3403 || eptr->asym.st == (int)st_Nil
3404 || cur_proc_ptr != (PDR *)0)
3405 {
3406 symint_t isym = add_local_symbol (name_start, name_end_p1,
3407 symbol_type, storage_class,
3408 value,
3409 indx);
3410
3411 /* deal with struct, union, and enum tags. */
3412 if (symbol_type == st_Block)
3413 {
3414 /* Create or update the tag information. */
3415 tag_t *tag_ptr = get_tag (name_start,
3416 name_end_p1,
3417 isym,
3418 t.basic_type);
3419
3420 /* If there are any forward references, fill in the appropriate
3421 file and symbol indexes. */
3422
3423 symint_t file_index = cur_file_ptr->file_index;
3424 forward_t *f_next = tag_ptr->forward_ref;
3425 forward_t *f_cur;
3426
3427 while (f_next != (forward_t *)0)
3428 {
3429 f_cur = f_next;
3430 f_next = f_next->next;
3431
3432 f_cur->ifd_ptr->isym = file_index;
3433 f_cur->index_ptr->rndx.index = isym;
3434
3435 free_forward (f_cur);
3436 }
3437
3438 tag_ptr->forward_ref = (forward_t *)0;
3439 }
3440 }
3441
3442 /* Normal return */
3443 return;
3444
3445 /* Error return, issue message. */
3446 bomb_out:
3447 if (error_line)
3448 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3449 else
3450 error ("compiler error, badly formed #.def");
3451
3452 return;
3453 }
3454
3455 \f
3456 /* Parse .end directives. */
3457
3458 STATIC void
3459 parse_end (start)
3460 const char *start; /* start of directive */
3461 {
3462 register const char *start_func, *end_func_p1;
3463 register int ch;
3464 register symint_t value;
3465 register FDR *orig_fdr;
3466
3467 if (cur_file_ptr == (efdr_t *)0)
3468 {
3469 error (".end directive without a preceding .file directive");
3470 return;
3471 }
3472
3473 if (cur_proc_ptr == (PDR *)0)
3474 {
3475 error (".end directive without a preceding .ent directive");
3476 return;
3477 }
3478
3479 /* Get the function name, skipping whitespace. */
3480 for (start_func = start; isspace (*start_func); start_func++)
3481 ;
3482
3483 ch = *start_func;
3484 if (!IS_ASM_IDENT (ch))
3485 {
3486 error (".end directive has no name");
3487 return;
3488 }
3489
3490 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3491 ;
3492
3493
3494 /* Get the value field for creating the end from the original object
3495 file (which we find by locating the procedure start, and using the
3496 pointer to the end+1 block and backing up. The index points to a
3497 two word aux. symbol, whose first word is the index of the end
3498 symbol, and the second word is the type of the function return
3499 value. */
3500
3501 orig_fdr = cur_file_ptr->orig_fdr;
3502 value = 0;
3503 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3504 value = cur_oproc_end->value;
3505
3506 else
3507 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3508
3509 (void) add_local_symbol (start_func, end_func_p1,
3510 st_End, sc_Text,
3511 value,
3512 (symint_t)0);
3513
3514 cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3515 }
3516
3517 \f
3518 /* Parse .ent directives. */
3519
3520 STATIC void
3521 parse_ent (start)
3522 const char *start; /* start of directive */
3523 {
3524 register const char *start_func, *end_func_p1;
3525 register int ch;
3526
3527 if (cur_file_ptr == (efdr_t *)0)
3528 {
3529 error (".ent directive without a preceding .file directive");
3530 return;
3531 }
3532
3533 if (cur_proc_ptr != (PDR *)0)
3534 {
3535 error ("second .ent directive found before .end directive");
3536 return;
3537 }
3538
3539 for (start_func = start; isspace (*start_func); start_func++)
3540 ;
3541
3542 ch = *start_func;
3543 if (!IS_ASM_IDENT (ch))
3544 {
3545 error (".ent directive has no name");
3546 return;
3547 }
3548
3549 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3550 ;
3551
3552 (void) add_procedure (start_func, end_func_p1);
3553 }
3554
3555 \f
3556 /* Parse .file directives. */
3557
3558 STATIC void
3559 parse_file (start)
3560 const char *start; /* start of directive */
3561 {
3562 char *p;
3563 register char *start_name, *end_name_p1;
3564
3565 (void) strtol (start, &p, 0);
3566 if (start == p
3567 || (start_name = local_index (p, '"')) == (char *)0
3568 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
3569 {
3570 error ("Illegal .file directive");
3571 return;
3572 }
3573
3574 if (cur_proc_ptr != (PDR *)0)
3575 {
3576 error ("No way to handle .file within .ent/.end section");
3577 return;
3578 }
3579
3580 add_file (start_name, end_name_p1);
3581 }
3582
3583 \f
3584 /* Make sure the @stabs symbol is emitted. */
3585
3586 static void
3587 mark_stabs (start)
3588 const char *start; /* Start of directive (ignored) */
3589 {
3590 if (!stabs_seen)
3591 {
3592 /* Add a dummy @stabs dymbol. */
3593 stabs_seen = 1;
3594 (void) add_local_symbol (stabs_symbol,
3595 stabs_symbol + sizeof (stabs_symbol),
3596 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3597
3598 }
3599 }
3600
3601 \f
3602 /* Parse .stabs directives.
3603
3604 .stabs directives have five fields:
3605 "string" a string, encoding the type information.
3606 code a numeric code, defined in <stab.h>
3607 0 a zero
3608 0 a zero or line number
3609 value a numeric value or an address.
3610
3611 If the value is relocatable, we transform this into:
3612 iss points as an index into string space
3613 value value from lookup of the name
3614 st st from lookup of the name
3615 sc sc from lookup of the name
3616 index code|CODE_MASK
3617
3618 If the value is not relocatable, we transform this into:
3619 iss points as an index into string space
3620 value value
3621 st st_Nil
3622 sc sc_Nil
3623 index code|CODE_MASK
3624
3625 .stabn directives have four fields (string is null):
3626 code a numeric code, defined in <stab.h>
3627 0 a zero
3628 0 a zero or a line number
3629 value a numeric value or an address. */
3630
3631 STATIC void
3632 parse_stabs_common (string_start, string_end, rest)
3633 const char *string_start; /* start of string or NULL */
3634 const char *string_end; /* end+1 of string or NULL */
3635 const char *rest; /* rest of the directive. */
3636 {
3637 efdr_t *save_file_ptr = cur_file_ptr;
3638 symint_t code;
3639 symint_t value;
3640 char *p;
3641 st_t st;
3642 sc_t sc;
3643 int ch;
3644
3645 if (stabs_seen == 0)
3646 mark_stabs ("");
3647
3648 /* Read code from stabs. */
3649 if (!isdigit (*rest))
3650 {
3651 error ("Illegal .stabs/.stabn directive, code is non-numeric");
3652 return;
3653 }
3654
3655 code = strtol (rest, &p, 0);
3656
3657 /* Line number stabs are handled differently, since they have two values,
3658 the line number and the address of the label. We use the index field
3659 (aka code) to hold the line number, and the value field to hold the
3660 address. The symbol type is st_Label, which should be different from
3661 the other stabs, so that gdb can recognize it. */
3662
3663 if (code == (int)N_SLINE)
3664 {
3665 SYMR *sym_ptr;
3666 shash_t *shash_ptr;
3667
3668 /* Skip ,0, */
3669 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3670 {
3671 error ("Illegal line number .stabs/.stabn directive");
3672 return;
3673 }
3674
3675 code = strtol (p+3, &p, 0);
3676 ch = *++p;
3677 if (code <= 0 || p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3678 {
3679 error ("Illegal line number .stabs/.stabn directive");
3680 return;
3681 }
3682
3683 shash_ptr = hash_string (p,
3684 strlen (p) - 1,
3685 &orig_str_hash[0],
3686 (symint_t *)0);
3687
3688 if (shash_ptr == (shash_t *)0
3689 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3690 {
3691 error ("Illegal .stabs/.stabn directive, value not found");
3692 return;
3693 }
3694
3695 if ((st_t) sym_ptr->st != st_Label)
3696 {
3697 error ("Illegal line number .stabs/.stabn directive");
3698 return;
3699 }
3700
3701 st = st_Label;
3702 sc = (sc_t) sym_ptr->sc;
3703 value = sym_ptr->value;
3704 }
3705 else
3706 {
3707 /* Skip ,0,0, */
3708 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || p[3] != '0' || p[4] != ',')
3709 {
3710 error ("Illegal .stabs/.stabn directive, mandatory 0 isn't");
3711 return;
3712 }
3713
3714 p += 5;
3715 ch = *p;
3716 if (!IS_ASM_IDENT (ch) && ch != '-')
3717 {
3718 error ("Illegal .stabs/.stabn directive, bad character");
3719 return;
3720 }
3721
3722 if (isdigit (ch) || ch == '-')
3723 {
3724 st = st_Nil;
3725 sc = sc_Nil;
3726 value = strtol (p, &p, 0);
3727 if (*p != '\n')
3728 {
3729 error ("Illegal .stabs/.stabn directive, stuff after numeric value");
3730 return;
3731 }
3732 }
3733 else if (!IS_ASM_IDENT (ch))
3734 {
3735 error ("Illegal .stabs/.stabn directive, bad character");
3736 return;
3737 }
3738 else
3739 {
3740 SYMR *sym_ptr;
3741 shash_t *shash_ptr;
3742 const char *start, *end_p1;
3743
3744 start = p;
3745 if ((end_p1 = strchr (start, '+')) == (char *)0)
3746 {
3747 if ((end_p1 = strchr (start, '-')) == (char *)0)
3748 end_p1 = start + strlen(start) - 1;
3749 }
3750
3751 shash_ptr = hash_string (start,
3752 end_p1 - start,
3753 &orig_str_hash[0],
3754 (symint_t *)0);
3755
3756 if (shash_ptr == (shash_t *)0
3757 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3758 {
3759 shash_ptr = hash_string (start,
3760 end_p1 - start,
3761 &ext_str_hash[0],
3762 (symint_t *)0);
3763
3764 if (shash_ptr == (shash_t *)0
3765 || shash_ptr->esym_ptr == (EXTR *)0)
3766 {
3767 error ("Illegal .stabs/.stabn directive, value not found");
3768 return;
3769 }
3770 else
3771 sym_ptr = &(shash_ptr->esym_ptr->asym);
3772 }
3773
3774 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3775 if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3776 {
3777 sc = scNil;
3778 st = stNil;
3779 }
3780 else
3781 {
3782 sc = (sc_t) sym_ptr->sc;
3783 st = (st_t) sym_ptr->st;
3784 }
3785 value = sym_ptr->value;
3786
3787 ch = *end_p1++;
3788 if (ch != '\n')
3789 {
3790 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3791 || ((ch != '+') && (ch != '-')))
3792 {
3793 error ("Illegal .stabs/.stabn directive, badly formed value");
3794 return;
3795 }
3796 if (ch == '+')
3797 value += strtol (end_p1, &p, 0);
3798 else if (ch == '-')
3799 value -= strtol (end_p1, &p, 0);
3800
3801 if (*p != '\n')
3802 {
3803 error ("Illegal .stabs/.stabn directive, stuff after numeric value");
3804 return;
3805 }
3806 }
3807 }
3808 code = MIPS_MARK_STAB(code);
3809 }
3810
3811 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3812 /* Restore normal file type. */
3813 cur_file_ptr = save_file_ptr;
3814 }
3815
3816
3817 STATIC void
3818 parse_stabs (start)
3819 const char *start; /* start of directive */
3820 {
3821 const char *end = local_index (start+1, '"');
3822
3823 if (*start != '"' || end == (const char *)0 || end[1] != ',')
3824 {
3825 error ("Illegal .stabs directive, no string");
3826 return;
3827 }
3828
3829 parse_stabs_common (start+1, end, end+2);
3830 }
3831
3832
3833 STATIC void
3834 parse_stabn (start)
3835 const char *start; /* start of directive */
3836 {
3837 parse_stabs_common ((const char *)0, (const char *)0, start);
3838 }
3839
3840 \f
3841 /* Parse the input file, and write the lines to the output file
3842 if needed. */
3843
3844 STATIC void
3845 parse_input __proto((void))
3846 {
3847 register char *p;
3848 register int i;
3849 register thead_t *ptag_head;
3850 register tag_t *ptag;
3851 register tag_t *ptag_next;
3852
3853 if (debug)
3854 fprintf (stderr, "\tinput\n");
3855
3856 /* Add a dummy scope block around the entire compilation unit for
3857 structures defined outside of blocks. */
3858 ptag_head = allocate_thead ();
3859 ptag_head->first_tag = 0;
3860 ptag_head->prev = cur_tag_head;
3861 cur_tag_head = ptag_head;
3862
3863 while ((p = read_line ()) != (char *)0)
3864 {
3865 /* Skip leading blanks */
3866 while (isspace (*p))
3867 p++;
3868
3869 /* See if it's a directive we handle. If so, dispatch handler. */
3870 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3871 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3872 && isspace (p[pseudo_ops[i].len]))
3873 {
3874 p += pseudo_ops[i].len; /* skip to first argument */
3875 while (isspace (*p))
3876 p++;
3877
3878 (*pseudo_ops[i].func)( p );
3879 break;
3880 }
3881 }
3882
3883 /* Process any tags at global level. */
3884 ptag_head = cur_tag_head;
3885 cur_tag_head = ptag_head->prev;
3886
3887 for (ptag = ptag_head->first_tag;
3888 ptag != (tag_t *)0;
3889 ptag = ptag_next)
3890 {
3891 if (ptag->forward_ref != (forward_t *)0)
3892 add_unknown_tag (ptag);
3893
3894 ptag_next = ptag->same_block;
3895 ptag->hash_ptr->tag_ptr = ptag->same_name;
3896 free_tag (ptag);
3897 }
3898
3899 free_thead (ptag_head);
3900
3901 }
3902
3903 \f
3904 /* Update the global headers with the final offsets in preparation
3905 to write out the .T file. */
3906
3907 STATIC void
3908 update_headers __proto((void))
3909 {
3910 register symint_t i;
3911 register efdr_t *file_ptr;
3912
3913 /* Set up the symbolic header. */
3914 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3915 symbolic_header.magic = orig_sym_hdr.magic;
3916 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3917
3918 /* Set up global counts. */
3919 symbolic_header.issExtMax = ext_strings.num_allocated;
3920 symbolic_header.idnMax = dense_num.num_allocated;
3921 symbolic_header.ifdMax = file_desc.num_allocated;
3922 symbolic_header.iextMax = ext_symbols.num_allocated;
3923 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3924 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3925 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3926 symbolic_header.crfd = orig_sym_hdr.crfd;
3927
3928
3929 /* Loop through each file, figuring out how many local syms,
3930 line numbers, etc. there are. Also, put out end symbol
3931 for the filename. */
3932
3933 for (file_ptr = first_file;
3934 file_ptr != (efdr_t *)0;
3935 file_ptr = file_ptr->next_file)
3936 {
3937 cur_file_ptr = file_ptr;
3938 (void) add_local_symbol ((const char *)0, (const char *)0,
3939 st_End, sc_Text,
3940 (symint_t)0,
3941 (symint_t)0);
3942
3943 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3944 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3945 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3946
3947 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3948 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3949 symbolic_header.isymMax += file_ptr->fdr.csym;
3950
3951 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3952 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3953 symbolic_header.iauxMax += file_ptr->fdr.caux;
3954
3955 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3956 file_ptr->fdr.issBase = symbolic_header.issMax;
3957 symbolic_header.issMax += file_ptr->fdr.cbSs;
3958 }
3959
3960
3961 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3962 if (i > 0)
3963 {
3964 symbolic_header.cbLineOffset = file_offset;
3965 file_offset += i;
3966 }
3967
3968 i = symbolic_header.ioptMax; /* optimization symbols */
3969 if (((long) i) > 0)
3970 {
3971 symbolic_header.cbOptOffset = file_offset;
3972 file_offset += i * sizeof (OPTR);
3973 }
3974
3975 i = symbolic_header.idnMax; /* dense numbers */
3976 if (i > 0)
3977 {
3978 symbolic_header.cbDnOffset = file_offset;
3979 file_offset += i * sizeof (DNR);
3980 }
3981
3982 i = symbolic_header.ipdMax; /* procedure tables */
3983 if (i > 0)
3984 {
3985 symbolic_header.cbPdOffset = file_offset;
3986 file_offset += i * sizeof (PDR);
3987 }
3988
3989 i = symbolic_header.isymMax; /* local symbols */
3990 if (i > 0)
3991 {
3992 symbolic_header.cbSymOffset = file_offset;
3993 file_offset += i * sizeof (SYMR);
3994 }
3995
3996 i = symbolic_header.iauxMax; /* aux syms. */
3997 if (i > 0)
3998 {
3999 symbolic_header.cbAuxOffset = file_offset;
4000 file_offset += i * sizeof (TIR);
4001 }
4002
4003 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4004 if (i > 0)
4005 {
4006 symbolic_header.cbSsOffset = file_offset;
4007 file_offset += i;
4008 }
4009
4010 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4011 if (i > 0)
4012 {
4013 symbolic_header.cbSsExtOffset = file_offset;
4014 file_offset += i;
4015 }
4016
4017 i = symbolic_header.ifdMax; /* file tables */
4018 if (i > 0)
4019 {
4020 symbolic_header.cbFdOffset = file_offset;
4021 file_offset += i * sizeof (FDR);
4022 }
4023
4024 i = symbolic_header.crfd; /* relative file descriptors */
4025 if (i > 0)
4026 {
4027 symbolic_header.cbRfdOffset = file_offset;
4028 file_offset += i * sizeof (symint_t);
4029 }
4030
4031 i = symbolic_header.iextMax; /* external symbols */
4032 if (i > 0)
4033 {
4034 symbolic_header.cbExtOffset = file_offset;
4035 file_offset += i * sizeof (EXTR);
4036 }
4037 }
4038
4039 \f
4040 /* Write out a varray at a given location. */
4041
4042 STATIC void
4043 write_varray (vp, offset, str)
4044 varray_t *vp; /* virtual array */
4045 off_t offset; /* offset to write varray to */
4046 const char *str; /* string to print out when tracing */
4047 {
4048 int num_write, sys_write;
4049 vlinks_t *ptr;
4050
4051 if (vp->num_allocated == 0)
4052 return;
4053
4054 if (debug)
4055 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4056 vp, offset, vp->num_allocated * vp->object_size, str);
4057
4058 if (file_offset != offset
4059 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4060 pfatal_with_name (object_name);
4061
4062 for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4063 {
4064 num_write = (ptr->next == (vlinks_t *)0)
4065 ? vp->objects_last_page * vp->object_size
4066 : vp->objects_per_page * vp->object_size;
4067
4068 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4069 if (sys_write <= 0)
4070 pfatal_with_name (object_name);
4071
4072 else if (sys_write != num_write)
4073 fatal ("Wrote %d bytes to %s, system returned %d",
4074 num_write,
4075 object_name,
4076 sys_write);
4077
4078 file_offset += num_write;
4079 }
4080 }
4081
4082 \f
4083 /* Write out the symbol table in the object file. */
4084
4085 STATIC void
4086 write_object __proto((void))
4087 {
4088 int sys_write;
4089 efdr_t *file_ptr;
4090 off_t offset;
4091
4092 if (debug)
4093 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4094 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4095 "symbolic header");
4096
4097 sys_write = fwrite ((PTR_T) &symbolic_header,
4098 1,
4099 sizeof (symbolic_header),
4100 object_stream);
4101
4102 if (sys_write < 0)
4103 pfatal_with_name (object_name);
4104
4105 else if (sys_write != sizeof (symbolic_header))
4106 fatal ("Wrote %d bytes to %s, system returned %d",
4107 sizeof (symbolic_header),
4108 object_name,
4109 sys_write);
4110
4111
4112 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4113
4114 if (symbolic_header.cbLine > 0) /* line numbers */
4115 {
4116 long sys_write;
4117
4118 if (file_offset != symbolic_header.cbLineOffset
4119 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4120 pfatal_with_name (object_name);
4121
4122 if (debug)
4123 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4124 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4125 symbolic_header.cbLine, "Line numbers");
4126
4127 sys_write = fwrite ((PTR_T) orig_linenum,
4128 1,
4129 symbolic_header.cbLine,
4130 object_stream);
4131
4132 if (sys_write <= 0)
4133 pfatal_with_name (object_name);
4134
4135 else if (sys_write != symbolic_header.cbLine)
4136 fatal ("Wrote %d bytes to %s, system returned %d",
4137 symbolic_header.cbLine,
4138 object_name,
4139 sys_write);
4140
4141 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4142 }
4143
4144 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4145 {
4146 long sys_write;
4147 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4148
4149 if (file_offset != symbolic_header.cbOptOffset
4150 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4151 pfatal_with_name (object_name);
4152
4153 if (debug)
4154 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4155 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4156 num_write, "Optimizer symbols");
4157
4158 sys_write = fwrite ((PTR_T) orig_opt_syms,
4159 1,
4160 num_write,
4161 object_stream);
4162
4163 if (sys_write <= 0)
4164 pfatal_with_name (object_name);
4165
4166 else if (sys_write != num_write)
4167 fatal ("Wrote %d bytes to %s, system returned %d",
4168 num_write,
4169 object_name,
4170 sys_write);
4171
4172 file_offset = symbolic_header.cbOptOffset + num_write;
4173 }
4174
4175 if (symbolic_header.idnMax > 0) /* dense numbers */
4176 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4177
4178 if (symbolic_header.ipdMax > 0) /* procedure tables */
4179 {
4180 offset = symbolic_header.cbPdOffset;
4181 for (file_ptr = first_file;
4182 file_ptr != (efdr_t *)0;
4183 file_ptr = file_ptr->next_file)
4184 {
4185 write_varray (&file_ptr->procs, offset, "Procedure tables");
4186 offset = file_offset;
4187 }
4188 }
4189
4190 if (symbolic_header.isymMax > 0) /* local symbols */
4191 {
4192 offset = symbolic_header.cbSymOffset;
4193 for (file_ptr = first_file;
4194 file_ptr != (efdr_t *)0;
4195 file_ptr = file_ptr->next_file)
4196 {
4197 write_varray (&file_ptr->symbols, offset, "Local symbols");
4198 offset = file_offset;
4199 }
4200 }
4201
4202 if (symbolic_header.iauxMax > 0) /* aux symbols */
4203 {
4204 offset = symbolic_header.cbAuxOffset;
4205 for (file_ptr = first_file;
4206 file_ptr != (efdr_t *)0;
4207 file_ptr = file_ptr->next_file)
4208 {
4209 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4210 offset = file_offset;
4211 }
4212 }
4213
4214 if (symbolic_header.issMax > 0) /* local strings */
4215 {
4216 offset = symbolic_header.cbSsOffset;
4217 for (file_ptr = first_file;
4218 file_ptr != (efdr_t *)0;
4219 file_ptr = file_ptr->next_file)
4220 {
4221 write_varray (&file_ptr->strings, offset, "Local strings");
4222 offset = file_offset;
4223 }
4224 }
4225
4226 if (symbolic_header.issExtMax > 0) /* external strings */
4227 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4228
4229 if (symbolic_header.ifdMax > 0) /* file tables */
4230 {
4231 offset = symbolic_header.cbFdOffset;
4232 if (file_offset != offset
4233 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4234 pfatal_with_name (object_name);
4235
4236 file_offset = offset;
4237 for (file_ptr = first_file;
4238 file_ptr != (efdr_t *)0;
4239 file_ptr = file_ptr->next_file)
4240 {
4241 if (debug)
4242 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4243 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4244
4245 sys_write = fwrite (&file_ptr->fdr,
4246 1,
4247 sizeof (FDR),
4248 object_stream);
4249
4250 if (sys_write < 0)
4251 pfatal_with_name (object_name);
4252
4253 else if (sys_write != sizeof (FDR))
4254 fatal ("Wrote %d bytes to %s, system returned %d",
4255 sizeof (FDR),
4256 object_name,
4257 sys_write);
4258
4259 file_offset = offset += sizeof (FDR);
4260 }
4261 }
4262
4263 if (symbolic_header.crfd > 0) /* relative file descriptors */
4264 {
4265 long sys_write;
4266 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4267
4268 if (file_offset != symbolic_header.cbRfdOffset
4269 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4270 pfatal_with_name (object_name);
4271
4272 if (debug)
4273 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4274 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4275 num_write, "Relative file descriptors");
4276
4277 sys_write = fwrite (orig_rfds,
4278 1,
4279 num_write,
4280 object_stream);
4281
4282 if (sys_write <= 0)
4283 pfatal_with_name (object_name);
4284
4285 else if (sys_write != num_write)
4286 fatal ("Wrote %d bytes to %s, system returned %d",
4287 num_write,
4288 object_name,
4289 sys_write);
4290
4291 file_offset = symbolic_header.cbRfdOffset + num_write;
4292 }
4293
4294 if (symbolic_header.issExtMax > 0) /* external symbols */
4295 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4296
4297 if (fclose (object_stream) != 0)
4298 pfatal_with_name (object_name);
4299 }
4300
4301 \f
4302 /* Read some bytes at a specified location, and return a pointer. */
4303
4304 STATIC page_t *
4305 read_seek (size, offset, str)
4306 Size_t size; /* # bytes to read */
4307 off_t offset; /* offset to read at */
4308 const char *str; /* name for tracing */
4309 {
4310 page_t *ptr;
4311 long sys_read = 0;
4312
4313 if (size == 0) /* nothing to read */
4314 return (page_t *)0;
4315
4316 if (debug)
4317 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4318 size, offset, file_offset, str);
4319
4320 #ifndef MALLOC_CHECK
4321 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4322 #else
4323 ptr = (page_t *) xcalloc (1, size);
4324 #endif
4325
4326 /* If we need to seek, and the distance is nearby, just do some reads,
4327 to speed things up. */
4328 if (file_offset != offset)
4329 {
4330 symint_t difference = offset - file_offset;
4331
4332 if (difference < 8)
4333 {
4334 char small_buffer[8];
4335
4336 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4337 if (sys_read <= 0)
4338 pfatal_with_name (obj_in_name);
4339
4340 if (sys_read != difference)
4341 fatal ("Wanted to read %d bytes from %s, system returned %d",
4342 size,
4343 obj_in_name,
4344 sys_read);
4345 }
4346 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4347 pfatal_with_name (obj_in_name);
4348 }
4349
4350 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4351 if (sys_read <= 0)
4352 pfatal_with_name (obj_in_name);
4353
4354 if (sys_read != size)
4355 fatal ("Wanted to read %d bytes from %s, system returned %d",
4356 size,
4357 obj_in_name,
4358 sys_read);
4359
4360 file_offset = offset + size;
4361
4362 if (file_offset > max_file_offset)
4363 max_file_offset = file_offset;
4364
4365 return ptr;
4366 }
4367
4368 \f
4369 /* Read the existing object file (and copy to the output object file
4370 if it is different from the input object file), and remove the old
4371 symbol table. */
4372
4373 STATIC void
4374 copy_object __proto((void))
4375 {
4376 char buffer[ PAGE_SIZE ];
4377 register int sys_read;
4378 register int remaining;
4379 register int num_write;
4380 register int sys_write;
4381 register int fd, es;
4382 register int delete_ifd = 0;
4383 register int *remap_file_number;
4384 struct stat stat_buf;
4385
4386 if (debug)
4387 fprintf (stderr, "\tcopy\n");
4388
4389 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4390 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4391 pfatal_with_name (obj_in_name);
4392
4393 sys_read = fread ((PTR_T) &orig_file_header,
4394 1,
4395 sizeof (struct filehdr),
4396 obj_in_stream);
4397
4398 if (sys_read < 0)
4399 pfatal_with_name (obj_in_name);
4400
4401 else if (sys_read == 0 && feof (obj_in_stream))
4402 return; /* create a .T file sans file header */
4403
4404 else if (sys_read < sizeof (struct filehdr))
4405 fatal ("Wanted to read %d bytes from %s, system returned %d",
4406 sizeof (struct filehdr),
4407 obj_in_name,
4408 sys_read);
4409
4410
4411 if (orig_file_header.f_nsyms != sizeof (HDRR))
4412 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4413 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4414
4415
4416 /* Read in the current symbolic header. */
4417 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4418 pfatal_with_name (input_name);
4419
4420 sys_read = fread ((PTR_T) &orig_sym_hdr,
4421 1,
4422 sizeof (orig_sym_hdr),
4423 obj_in_stream);
4424
4425 if (sys_read < 0)
4426 pfatal_with_name (object_name);
4427
4428 else if (sys_read < sizeof (struct filehdr))
4429 fatal ("Wanted to read %d bytes from %s, system returned %d",
4430 sizeof (struct filehdr),
4431 obj_in_name,
4432 sys_read);
4433
4434
4435 /* Read in each of the sections if they exist in the object file.
4436 We read things in in the order the mips assembler creates the
4437 sections, so in theory no extra seeks are done.
4438
4439 For simplicity sake, round each read up to a page boundary,
4440 we may want to revisit this later.... */
4441
4442 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4443
4444 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4445 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4446 orig_sym_hdr.cbLineOffset,
4447 "Line numbers");
4448
4449 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4450 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4451 orig_sym_hdr.cbPdOffset,
4452 "Procedure tables");
4453
4454 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4455 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4456 orig_sym_hdr.cbSymOffset,
4457 "Local symbols");
4458
4459 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4460 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4461 orig_sym_hdr.cbAuxOffset,
4462 "Aux. symbols");
4463
4464 if (orig_sym_hdr.issMax > 0) /* local strings */
4465 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4466 orig_sym_hdr.cbSsOffset,
4467 "Local strings");
4468
4469 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4470 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4471 orig_sym_hdr.cbSsExtOffset,
4472 "External strings");
4473
4474 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4475 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4476 orig_sym_hdr.cbFdOffset,
4477 "File tables");
4478
4479 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4480 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4481 orig_sym_hdr.cbRfdOffset,
4482 "Relative file descriptors");
4483
4484 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4485 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4486 orig_sym_hdr.cbExtOffset,
4487 "External symbols");
4488
4489 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4490 {
4491 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4492 orig_sym_hdr.cbDnOffset,
4493 "Dense numbers");
4494
4495 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4496 }
4497
4498 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4499 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4500 orig_sym_hdr.cbOptOffset,
4501 "Optimizer symbols");
4502
4503
4504
4505 /* Abort if the symbol table is not last. */
4506 if (max_file_offset != stat_buf.st_size)
4507 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4508 max_file_offset,
4509 stat_buf.st_size);
4510
4511
4512 /* If the first original file descriptor is a dummy which the assembler
4513 put out, but there are no symbols in it, skip it now. */
4514 if (orig_sym_hdr.ifdMax > 1
4515 && orig_files->csym == 2
4516 && orig_files->caux == 0)
4517 {
4518 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4519 char *suffix = local_rindex (filename, '.');
4520
4521 if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4522 delete_ifd = 1;
4523 }
4524
4525
4526 /* Create array to map original file numbers to the new file numbers
4527 (in case there are duplicate filenames, we collapse them into one
4528 file section, the MIPS assembler may or may not collapse them). */
4529
4530 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4531
4532 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4533 {
4534 register FDR *fd_ptr = ORIG_FILES (fd);
4535 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4536
4537 /* file support itself. */
4538 add_file (filename, filename + strlen (filename));
4539 remap_file_number[fd] = cur_file_ptr->file_index;
4540 }
4541
4542 if (delete_ifd > 0) /* just in case */
4543 remap_file_number[0] = remap_file_number[1];
4544
4545
4546 /* Loop, adding each of the external symbols. These must be in
4547 order or otherwise we would have to change the relocation
4548 entries. We don't just call add_bytes, because we need to have
4549 the names put into the external hash table. We set the type to
4550 'void' for now, and parse_def will fill in the correct type if it
4551 is in the symbol table. We must add the external symbols before
4552 the locals, since the locals do lookups against the externals. */
4553
4554 if (debug)
4555 fprintf (stderr, "\tehash\n");
4556
4557 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4558 {
4559 register EXTR *eptr = orig_ext_syms + es;
4560 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4561 register unsigned ifd = eptr->ifd;
4562
4563 (void) add_ext_symbol (ename,
4564 ename + strlen (ename),
4565 (st_t) eptr->asym.st,
4566 (sc_t) eptr->asym.sc,
4567 eptr->asym.value,
4568 (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4569 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4570 }
4571
4572
4573 /* For each of the files in the object file, copy the symbols, and such
4574 into the varrays for the new object file. */
4575
4576 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4577 {
4578 register FDR *fd_ptr = ORIG_FILES (fd);
4579 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4580 register SYMR *sym_start;
4581 register SYMR *sym;
4582 register SYMR *sym_end_p1;
4583 register PDR *proc_start;
4584 register PDR *proc;
4585 register PDR *proc_end_p1;
4586
4587 /* file support itself. */
4588 add_file (filename, filename + strlen (filename));
4589 cur_file_ptr->orig_fdr = fd_ptr;
4590
4591 /* Copy stuff that's just passed through (such as line #'s) */
4592 cur_file_ptr->fdr.adr = fd_ptr->adr;
4593 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4594 cur_file_ptr->fdr.cline = fd_ptr->cline;
4595 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4596 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4597 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4598 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4599 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4600 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4601 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4602
4603 if (debug)
4604 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4605
4606 /* For each of the static and global symbols defined, add them
4607 to the hash table of original symbols, so we can look up
4608 their values. */
4609
4610 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4611 sym_end_p1 = sym_start + fd_ptr->csym;
4612 for (sym = sym_start; sym < sym_end_p1; sym++)
4613 {
4614 switch ((st_t) sym->st)
4615 {
4616 default:
4617 break;
4618
4619 case st_Global:
4620 case st_Static:
4621 case st_Label:
4622 case st_Proc:
4623 case st_StaticProc:
4624 {
4625 auto symint_t hash_index;
4626 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4627 register Size_t len = strlen (str);
4628 register shash_t *shash_ptr = hash_string (str,
4629 (Ptrdiff_t)len,
4630 &orig_str_hash[0],
4631 &hash_index);
4632
4633 if (shash_ptr != (shash_t *)0)
4634 error ("internal error, %s is already in original symbol table", str);
4635
4636 else
4637 {
4638 shash_ptr = allocate_shash ();
4639 shash_ptr->next = orig_str_hash[hash_index];
4640 orig_str_hash[hash_index] = shash_ptr;
4641
4642 shash_ptr->len = len;
4643 shash_ptr->indx = indexNil;
4644 shash_ptr->string = str;
4645 shash_ptr->sym_ptr = sym;
4646 }
4647 }
4648 break;
4649
4650 case st_End:
4651 if ((sc_t) sym->sc == sc_Text)
4652 {
4653 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4654
4655 if (*str != '\0')
4656 {
4657 register Size_t len = strlen (str);
4658 register shash_t *shash_ptr = hash_string (str,
4659 (Ptrdiff_t)len,
4660 &orig_str_hash[0],
4661 (symint_t *)0);
4662
4663 if (shash_ptr != (shash_t *)0)
4664 shash_ptr->end_ptr = sym;
4665 }
4666 }
4667 break;
4668
4669 }
4670 }
4671
4672 if (debug)
4673 {
4674 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4675 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4676 }
4677
4678 /* Go through each of the procedures in this file, and add the
4679 procedure pointer to the hash entry for the given name. */
4680
4681 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4682 proc_end_p1 = proc_start + fd_ptr->cpd;
4683 for (proc = proc_start; proc < proc_end_p1; proc++)
4684 {
4685 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4686 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4687 register Size_t len = strlen (str);
4688 register shash_t *shash_ptr = hash_string (str,
4689 (Ptrdiff_t)len,
4690 &orig_str_hash[0],
4691 (symint_t *)0);
4692
4693 if (shash_ptr == (shash_t *)0)
4694 error ("internal error, function %s is not in original symbol table", str);
4695
4696 else
4697 shash_ptr->proc_ptr = proc;
4698 }
4699
4700 if (debug)
4701 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4702
4703 }
4704 cur_file_ptr = first_file;
4705
4706
4707 /* Copy all of the object file up to the symbol table. Originally
4708 we were going to use ftruncate, but that doesn't seem to work
4709 on Ultrix 3.1.... */
4710
4711 if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4712 pfatal_with_name (obj_in_name);
4713
4714 if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4715 pfatal_with_name (object_name);
4716
4717 for (remaining = orig_file_header.f_symptr;
4718 remaining > 0;
4719 remaining -= num_write)
4720 {
4721 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4722 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4723 if (sys_read <= 0)
4724 pfatal_with_name (obj_in_name);
4725
4726 else if (sys_read != num_write)
4727 fatal ("Wanted to read %d bytes from %s, system returned %d",
4728 num_write,
4729 obj_in_name,
4730 sys_read);
4731
4732 sys_write = fwrite (buffer, 1, num_write, object_stream);
4733 if (sys_write <= 0)
4734 pfatal_with_name (object_name);
4735
4736 else if (sys_write != num_write)
4737 fatal ("Wrote %d bytes to %s, system returned %d",
4738 num_write,
4739 object_name,
4740 sys_write);
4741 }
4742 }
4743
4744 \f
4745 /* Ye olde main program. */
4746
4747 int
4748 main (argc, argv)
4749 int argc;
4750 char *argv[];
4751 {
4752 int iflag = 0;
4753 char *p = local_rindex (argv[0], '/');
4754 char *num_end;
4755 int option;
4756 int i;
4757
4758 progname = (p != 0) ? p+1 : argv[0];
4759
4760 (void) signal (SIGSEGV, catch_signal);
4761 (void) signal (SIGBUS, catch_signal);
4762 (void) signal (SIGABRT, catch_signal);
4763
4764 #if !defined(__SABER__) && !defined(lint)
4765 if (sizeof (efdr_t) > PAGE_USIZE)
4766 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4767 sizeof (efdr_t),
4768 PAGE_USIZE);
4769
4770 if (sizeof (page_t) != PAGE_USIZE)
4771 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4772 sizeof (page_t),
4773 PAGE_USIZE);
4774
4775 #endif
4776
4777 alloc_counts[ alloc_type_none ].alloc_name = "none";
4778 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4779 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4780 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4781 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4782 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4783 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4784 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4785 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4786
4787 int_type_info = type_info_init;
4788 int_type_info.basic_type = bt_Int;
4789
4790 void_type_info = type_info_init;
4791 void_type_info.basic_type = bt_Void;
4792
4793 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4794 switch (option)
4795 {
4796 default:
4797 had_errors++;
4798 break;
4799
4800 case 'd':
4801 debug = strtol (optarg, &num_end, 0);
4802 if ((unsigned)debug > 4 || num_end == optarg)
4803 had_errors++;
4804
4805 break;
4806
4807 case 'I':
4808 if (rename_output || obj_in_name != (char *)0)
4809 had_errors++;
4810 else
4811 rename_output = 1;
4812
4813 /* fall through to 'i' case. */
4814
4815 case 'i':
4816 if (obj_in_name == (char *)0)
4817 {
4818 obj_in_name = optarg;
4819 iflag++;
4820 }
4821 else
4822 had_errors++;
4823 break;
4824
4825 case 'o':
4826 if (object_name == (char *)0)
4827 object_name = optarg;
4828 else
4829 had_errors++;
4830 break;
4831
4832 case 'v':
4833 version++;
4834 break;
4835 }
4836
4837 if (obj_in_name == (char *)0 && optind <= argc - 2)
4838 obj_in_name = argv[--argc];
4839
4840 if (object_name == (char *)0 && optind <= argc - 2)
4841 object_name = argv[--argc];
4842
4843 /* If there is an output name, but no input name use
4844 the same file for both, deleting the name between
4845 opening it for input and opening it for output. */
4846 if (obj_in_name == (char *)0 && object_name != (char *)0)
4847 {
4848 obj_in_name = object_name;
4849 delete_input = 1;
4850 }
4851
4852 if (object_name == (char *)0 || had_errors || optind != argc - 1)
4853 {
4854 fprintf (stderr, "Calling Sequence:\n");
4855 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4856 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4857 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4858 fprintf (stderr, "\n");
4859 fprintf (stderr, "Debug levels are:\n");
4860 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4861 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4862 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4863 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4864 return 1;
4865 }
4866
4867
4868 if (version)
4869 {
4870 fprintf (stderr, "mips-tfile version %s", version_string);
4871 #ifdef TARGET_VERSION
4872 TARGET_VERSION;
4873 #endif
4874 fputc ('\n', stderr);
4875 }
4876
4877 if (obj_in_name == (char *)0)
4878 obj_in_name = object_name;
4879
4880 if (rename_output && rename (object_name, obj_in_name) != 0)
4881 {
4882 char *buffer = (char *) allocate_multiple_pages (4);
4883 int len;
4884 int len2;
4885 int in_fd;
4886 int out_fd;
4887
4888 /* Rename failed, copy input file */
4889 in_fd = open (object_name, O_RDONLY, 0666);
4890 if (in_fd < 0)
4891 pfatal_with_name (object_name);
4892
4893 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4894 if (out_fd < 0)
4895 pfatal_with_name (obj_in_name);
4896
4897 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4898 {
4899 len2 = write (out_fd, buffer, len);
4900 if (len2 < 0)
4901 pfatal_with_name (object_name);
4902
4903 if (len != len2)
4904 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4905 }
4906
4907 free_multiple_pages ((page_t *)buffer, 4);
4908
4909 if (len < 0)
4910 pfatal_with_name (object_name);
4911
4912 if (close (in_fd) < 0)
4913 pfatal_with_name (object_name);
4914
4915 if (close (out_fd) < 0)
4916 pfatal_with_name (obj_in_name);
4917 }
4918
4919 /* Must open input before output, since the output may be the same file, and
4920 we need to get the input handle before truncating it. */
4921 obj_in_stream = fopen (obj_in_name, "r");
4922 if (obj_in_stream == (FILE *)0)
4923 pfatal_with_name (obj_in_name);
4924
4925 if (delete_input && unlink (obj_in_name) != 0)
4926 pfatal_with_name (obj_in_name);
4927
4928 object_stream = fopen (object_name, "w");
4929 if (object_stream == (FILE *)0)
4930 pfatal_with_name (object_name);
4931
4932 if (strcmp (argv[optind], "-") != 0)
4933 {
4934 input_name = argv[optind];
4935 if (freopen (argv[optind], "r", stdin) != stdin)
4936 pfatal_with_name (argv[optind]);
4937 }
4938
4939 copy_object (); /* scan & copy object file */
4940 parse_input (); /* scan all of input */
4941
4942 update_headers (); /* write out tfile */
4943 write_object ();
4944
4945 if (debug)
4946 {
4947 fprintf (stderr, "\n\tAllocation summary:\n\n");
4948 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
4949 if (alloc_counts[i].total_alloc)
4950 {
4951 fprintf (stderr,
4952 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4953 alloc_counts[i].alloc_name,
4954 alloc_counts[i].total_alloc,
4955 alloc_counts[i].total_free,
4956 alloc_counts[i].total_pages);
4957 }
4958 }
4959
4960 return (had_errors) ? 1 : 0;
4961 }
4962
4963 \f
4964 /* Catch a signal and exit without dumping core. */
4965
4966 STATIC void
4967 catch_signal (signum)
4968 int signum;
4969 {
4970 (void) signal (signum, SIG_DFL); /* just in case... */
4971 fatal (sys_siglist[signum]);
4972 }
4973
4974 /* Print a fatal error message. NAME is the text.
4975 Also include a system error message based on `errno'. */
4976
4977 void
4978 pfatal_with_name (msg)
4979 char *msg;
4980 {
4981 int save_errno = errno; /* just in case.... */
4982 if (line_number > 0)
4983 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4984 else
4985 fprintf (stderr, "%s:", progname);
4986
4987 errno = save_errno;
4988 if (errno == 0)
4989 fprintf (stderr, "[errno = 0] %s\n", msg);
4990 else
4991 perror (msg);
4992
4993 exit (1);
4994 }
4995
4996 \f
4997 /* Procedure to abort with an out of bounds error message. It has
4998 type int, so it can be used with an ?: expression within the
4999 ORIG_xxx macros, but the function never returns. */
5000
5001 static int
5002 out_of_bounds (indx, max, str, prog_line)
5003 symint_t indx; /* index that is out of bounds */
5004 symint_t max; /* maximum index */
5005 const char *str; /* string to print out */
5006 int prog_line; /* line number within mips-tfile.c */
5007 {
5008 if (indx < max) /* just in case */
5009 return 0;
5010
5011 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5012 progname, input_name, line_number, indx, str, max, prog_line);
5013
5014 exit (1);
5015 return 0; /* turn off warning messages */
5016 }
5017
5018 \f
5019 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5020 like sbrk's behind it's back (or sbrk isn't available). If we use
5021 sbrk, we assume it gives us zeroed pages. */
5022
5023 #ifndef MALLOC_CHECK
5024 #ifdef USE_MALLOC
5025
5026 STATIC page_t *
5027 allocate_cluster (npages)
5028 Size_t npages;
5029 {
5030 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5031
5032 if (value == 0)
5033 fatal ("Virtual memory exhausted.");
5034
5035 if (debug > 3)
5036 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5037
5038 return value;
5039 }
5040
5041 #else /* USE_MALLOC */
5042
5043 STATIC page_t *
5044 allocate_cluster (npages)
5045 Size_t npages;
5046 {
5047 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5048 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5049
5050 if (offset != 0) /* align to a page boundary */
5051 {
5052 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5053 pfatal_with_name ("allocate_cluster");
5054
5055 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5056 }
5057
5058 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5059 pfatal_with_name ("allocate_cluster");
5060
5061 if (debug > 3)
5062 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5063
5064 return ptr;
5065 }
5066
5067 #endif /* USE_MALLOC */
5068
5069
5070 static page_t *cluster_ptr = NULL;
5071 static unsigned pages_left = 0;
5072
5073 #endif /* MALLOC_CHECK */
5074
5075
5076 /* Allocate some pages (which is initialized to 0). */
5077
5078 STATIC page_t *
5079 allocate_multiple_pages (npages)
5080 Size_t npages;
5081 {
5082 #ifndef MALLOC_CHECK
5083 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5084 {
5085 pages_left = MAX_CLUSTER_PAGES;
5086 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5087 }
5088
5089 if (npages <= pages_left)
5090 {
5091 page_t *ptr = cluster_ptr;
5092 cluster_ptr += npages;
5093 pages_left -= npages;
5094 return ptr;
5095 }
5096
5097 return allocate_cluster (npages);
5098
5099 #else /* MALLOC_CHECK */
5100 return (page_t *) xcalloc (npages, PAGE_SIZE);
5101
5102 #endif /* MALLOC_CHECK */
5103 }
5104
5105
5106 /* Release some pages. */
5107
5108 STATIC void
5109 free_multiple_pages (page_ptr, npages)
5110 page_t *page_ptr;
5111 Size_t npages;
5112 {
5113 #ifndef MALLOC_CHECK
5114 if (pages_left == 0)
5115 {
5116 cluster_ptr = page_ptr;
5117 pages_left = npages;
5118 }
5119
5120 else if ((page_ptr + npages) == cluster_ptr)
5121 {
5122 cluster_ptr -= npages;
5123 pages_left += npages;
5124 }
5125
5126 /* otherwise the page is not freed. If more than call is
5127 done, we probably should worry about it, but at present,
5128 the free pages is done right after an allocate. */
5129
5130 #else /* MALLOC_CHECK */
5131 free ((char *) page_ptr);
5132
5133 #endif /* MALLOC_CHECK */
5134 }
5135
5136
5137 /* Allocate one page (which is initialized to 0). */
5138
5139 STATIC page_t *
5140 allocate_page __proto((void))
5141 {
5142 #ifndef MALLOC_CHECK
5143 if (pages_left == 0)
5144 {
5145 pages_left = MAX_CLUSTER_PAGES;
5146 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5147 }
5148
5149 pages_left--;
5150 return cluster_ptr++;
5151
5152 #else /* MALLOC_CHECK */
5153 return (page_t *) xcalloc (1, PAGE_SIZE);
5154
5155 #endif /* MALLOC_CHECK */
5156 }
5157
5158 \f
5159 /* Allocate scoping information. */
5160
5161 STATIC scope_t *
5162 allocate_scope __proto((void))
5163 {
5164 register scope_t *ptr;
5165 static scope_t initial_scope;
5166
5167 #ifndef MALLOC_CHECK
5168 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5169 if (ptr != (scope_t *)0)
5170 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5171
5172 else
5173 {
5174 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5175 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5176
5177 if (unallocated == 0)
5178 {
5179 unallocated = PAGE_SIZE / sizeof (scope_t);
5180 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5181 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5182 }
5183
5184 ptr = &cur_page->scope[ --unallocated ];
5185 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5186 }
5187
5188 #else
5189 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5190
5191 #endif
5192
5193 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5194 *ptr = initial_scope;
5195 return ptr;
5196 }
5197
5198 /* Free scoping information. */
5199
5200 STATIC void
5201 free_scope (ptr)
5202 scope_t *ptr;
5203 {
5204 alloc_counts[ (int)alloc_type_scope ].total_free++;
5205
5206 #ifndef MALLOC_CHECK
5207 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5208 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5209
5210 #else
5211 xfree ((PTR_T) ptr);
5212 #endif
5213
5214 }
5215
5216 \f
5217 /* Allocate links for pages in a virtual array. */
5218
5219 STATIC vlinks_t *
5220 allocate_vlinks __proto((void))
5221 {
5222 register vlinks_t *ptr;
5223 static vlinks_t initial_vlinks;
5224
5225 #ifndef MALLOC_CHECK
5226 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5227 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5228
5229 if (unallocated == 0)
5230 {
5231 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5232 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5233 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5234 }
5235
5236 ptr = &cur_page->vlinks[ --unallocated ];
5237 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5238
5239 #else
5240 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5241
5242 #endif
5243
5244 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5245 *ptr = initial_vlinks;
5246 return ptr;
5247 }
5248
5249 \f
5250 /* Allocate string hash buckets. */
5251
5252 STATIC shash_t *
5253 allocate_shash __proto((void))
5254 {
5255 register shash_t *ptr;
5256 static shash_t initial_shash;
5257
5258 #ifndef MALLOC_CHECK
5259 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5260 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5261
5262 if (unallocated == 0)
5263 {
5264 unallocated = PAGE_SIZE / sizeof (shash_t);
5265 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5266 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5267 }
5268
5269 ptr = &cur_page->shash[ --unallocated ];
5270 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5271
5272 #else
5273 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5274
5275 #endif
5276
5277 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5278 *ptr = initial_shash;
5279 return ptr;
5280 }
5281
5282 \f
5283 /* Allocate type hash buckets. */
5284
5285 STATIC thash_t *
5286 allocate_thash __proto((void))
5287 {
5288 register thash_t *ptr;
5289 static thash_t initial_thash;
5290
5291 #ifndef MALLOC_CHECK
5292 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5293 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5294
5295 if (unallocated == 0)
5296 {
5297 unallocated = PAGE_SIZE / sizeof (thash_t);
5298 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5299 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5300 }
5301
5302 ptr = &cur_page->thash[ --unallocated ];
5303 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5304
5305 #else
5306 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5307
5308 #endif
5309
5310 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5311 *ptr = initial_thash;
5312 return ptr;
5313 }
5314
5315 \f
5316 /* Allocate structure, union, or enum tag information. */
5317
5318 STATIC tag_t *
5319 allocate_tag __proto((void))
5320 {
5321 register tag_t *ptr;
5322 static tag_t initial_tag;
5323
5324 #ifndef MALLOC_CHECK
5325 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5326 if (ptr != (tag_t *)0)
5327 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5328
5329 else
5330 {
5331 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5332 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5333
5334 if (unallocated == 0)
5335 {
5336 unallocated = PAGE_SIZE / sizeof (tag_t);
5337 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5338 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5339 }
5340
5341 ptr = &cur_page->tag[ --unallocated ];
5342 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5343 }
5344
5345 #else
5346 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5347
5348 #endif
5349
5350 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5351 *ptr = initial_tag;
5352 return ptr;
5353 }
5354
5355 /* Free scoping information. */
5356
5357 STATIC void
5358 free_tag (ptr)
5359 tag_t *ptr;
5360 {
5361 alloc_counts[ (int)alloc_type_tag ].total_free++;
5362
5363 #ifndef MALLOC_CHECK
5364 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5365 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5366
5367 #else
5368 xfree ((PTR_T) ptr);
5369 #endif
5370
5371 }
5372
5373 \f
5374 /* Allocate forward reference to a yet unknown tag. */
5375
5376 STATIC forward_t *
5377 allocate_forward __proto((void))
5378 {
5379 register forward_t *ptr;
5380 static forward_t initial_forward;
5381
5382 #ifndef MALLOC_CHECK
5383 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5384 if (ptr != (forward_t *)0)
5385 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5386
5387 else
5388 {
5389 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5390 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5391
5392 if (unallocated == 0)
5393 {
5394 unallocated = PAGE_SIZE / sizeof (forward_t);
5395 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5396 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5397 }
5398
5399 ptr = &cur_page->forward[ --unallocated ];
5400 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5401 }
5402
5403 #else
5404 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5405
5406 #endif
5407
5408 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5409 *ptr = initial_forward;
5410 return ptr;
5411 }
5412
5413 /* Free scoping information. */
5414
5415 STATIC void
5416 free_forward (ptr)
5417 forward_t *ptr;
5418 {
5419 alloc_counts[ (int)alloc_type_forward ].total_free++;
5420
5421 #ifndef MALLOC_CHECK
5422 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5423 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5424
5425 #else
5426 xfree ((PTR_T) ptr);
5427 #endif
5428
5429 }
5430
5431 \f
5432 /* Allocate head of type hash list. */
5433
5434 STATIC thead_t *
5435 allocate_thead __proto((void))
5436 {
5437 register thead_t *ptr;
5438 static thead_t initial_thead;
5439
5440 #ifndef MALLOC_CHECK
5441 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5442 if (ptr != (thead_t *)0)
5443 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5444
5445 else
5446 {
5447 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5448 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5449
5450 if (unallocated == 0)
5451 {
5452 unallocated = PAGE_SIZE / sizeof (thead_t);
5453 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5454 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5455 }
5456
5457 ptr = &cur_page->thead[ --unallocated ];
5458 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5459 }
5460
5461 #else
5462 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5463
5464 #endif
5465
5466 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5467 *ptr = initial_thead;
5468 return ptr;
5469 }
5470
5471 /* Free scoping information. */
5472
5473 STATIC void
5474 free_thead (ptr)
5475 thead_t *ptr;
5476 {
5477 alloc_counts[ (int)alloc_type_thead ].total_free++;
5478
5479 #ifndef MALLOC_CHECK
5480 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5481 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5482
5483 #else
5484 xfree ((PTR_T) ptr);
5485 #endif
5486
5487 }
5488
5489 #endif /* MIPS_DEBUGGING_INFO */
5490
5491 \f
5492 /* Output an error message and exit */
5493
5494 /*VARARGS*/
5495 void
5496 fatal (va_alist)
5497 va_dcl
5498 {
5499 va_list ap;
5500 char *format;
5501
5502 if (line_number > 0)
5503 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5504 else
5505 fprintf (stderr, "%s:", progname);
5506
5507 va_start(ap);
5508 format = va_arg (ap, char *);
5509 vfprintf (stderr, format, ap);
5510 va_end (ap);
5511 fprintf (stderr, "\n");
5512 if (line_number > 0)
5513 fprintf (stderr, "line:\t%s\n", cur_line_start);
5514
5515 saber_stop ();
5516 exit (1);
5517 }
5518
5519 /*VARARGS*/
5520 void
5521 error (va_alist)
5522 va_dcl
5523 {
5524 va_list ap;
5525 char *format;
5526
5527 if (line_number > 0)
5528 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5529 else
5530 fprintf (stderr, "%s:", progname);
5531
5532 va_start(ap);
5533 format = va_arg (ap, char *);
5534 vfprintf (stderr, format, ap);
5535 fprintf (stderr, "\n");
5536 if (line_number > 0)
5537 fprintf (stderr, "line:\t%s\n", cur_line_start);
5538
5539 had_errors++;
5540 va_end (ap);
5541
5542 saber_stop ();
5543 }
5544
5545 /* More 'friendly' abort that prints the line and file.
5546 config.h can #define abort fancy_abort if you like that sort of thing. */
5547
5548 void
5549 fancy_abort ()
5550 {
5551 fatal ("Internal abort.");
5552 }
5553 \f
5554
5555 /* When `malloc.c' is compiled with `rcheck' defined,
5556 it calls this function to report clobberage. */
5557
5558 void
5559 botch (s)
5560 const char *s;
5561 {
5562 fatal (s);
5563 }
5564
5565 /* Same as `malloc' but report error if no memory available. */
5566
5567 PTR_T
5568 xmalloc (size)
5569 Size_t size;
5570 {
5571 register PTR_T value = malloc (size);
5572 if (value == 0)
5573 fatal ("Virtual memory exhausted.");
5574
5575 if (debug > 3)
5576 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5577
5578 return value;
5579 }
5580
5581 /* Same as `calloc' but report error if no memory available. */
5582
5583 PTR_T
5584 xcalloc (size1, size2)
5585 Size_t size1, size2;
5586 {
5587 register PTR_T value = calloc (size1, size2);
5588 if (value == 0)
5589 fatal ("Virtual memory exhausted.");
5590
5591 if (debug > 3)
5592 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5593 value, size1, size2, size1+size2);
5594
5595 return value;
5596 }
5597
5598 /* Same as `realloc' but report error if no memory available. */
5599
5600 PTR_T
5601 xrealloc (ptr, size)
5602 PTR_T ptr;
5603 Size_t size;
5604 {
5605 register PTR_T result = realloc (ptr, size);
5606 if (!result)
5607 fatal ("Virtual memory exhausted.");
5608
5609 if (debug > 3)
5610 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5611 result, size, ptr);
5612
5613 return result;
5614 }
5615
5616 void
5617 xfree (ptr)
5618 PTR_T ptr;
5619 {
5620 if (debug > 3)
5621 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5622
5623 free (ptr);
5624 }
5625
5626 \f
5627 /* Define our own index/rindex, since the local and global symbol
5628 structures as defined by MIPS has an 'index' field. */
5629
5630 STATIC char *
5631 local_index (str, sentinel)
5632 const char *str;
5633 int sentinel;
5634 {
5635 int ch;
5636
5637 for ( ; (ch = *str) != sentinel; str++)
5638 {
5639 if (ch == '\0')
5640 return (char *)0;
5641 }
5642
5643 return (char *)str;
5644 }
5645
5646 STATIC char *
5647 local_rindex (str, sentinel)
5648 const char *str;
5649 int sentinel;
5650 {
5651 int ch;
5652 const char *ret = (const char *)0;
5653
5654 for ( ; (ch = *str) != '\0'; str++)
5655 {
5656 if (ch == sentinel)
5657 ret = str;
5658 }
5659
5660 return (char *)ret;
5661 }
GNU Compiler Collection
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