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[thirdparty/gcc.git] / gcc / mips-tfile.c
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998,
6 1999, 2000 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GNU CC.
10
11 GNU CC is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15
16 GNU CC is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GNU CC; see the file COPYING. If not, write to
23 the Free Software Foundation, 59 Temple Place - Suite 330,
24 Boston, MA 02111-1307, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indexs are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "version.h"
606
607 #ifndef __SABER__
608 #define saber_stop()
609 #endif
610
611 #ifndef __LINE__
612 #define __LINE__ 0
613 #endif
614
615 #define __proto(x) PARAMS(x)
616 typedef PTR PTR_T;
617 typedef const PTR_T CPTR_T;
618
619 /* Due to size_t being defined in sys/types.h and different
620 in stddef.h, we have to do this by hand..... Note, these
621 types are correct for MIPS based systems, and may not be
622 correct for other systems. Ultrix 4.0 and Silicon Graphics
623 have this fixed, but since the following is correct, and
624 the fact that including stddef.h gets you GCC's version
625 instead of the standard one it's not worth it to fix it. */
626
627 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
628 #define Size_t long unsigned int
629 #else
630 #define Size_t unsigned int
631 #endif
632 #define Ptrdiff_t long
633
634 /* The following might be called from obstack or malloc,
635 so they can't be static. */
636
637 extern void pfatal_with_name
638 __proto((const char *)) ATTRIBUTE_NORETURN;
639 extern void fancy_abort __proto((void)) ATTRIBUTE_NORETURN;
640 void botch __proto((const char *)) ATTRIBUTE_NORETURN;
641
642 extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
643 extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
644 \f
645 #ifndef MIPS_DEBUGGING_INFO
646
647 static int line_number;
648 static int cur_line_start;
649 static int debug;
650 static int had_errors;
651 static const char *progname;
652 static const char *input_name;
653
654 int
655 main ()
656 {
657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
658 exit (1);
659 }
660
661 #else /* MIPS_DEBUGGING defined */
662 \f
663 /* The local and global symbols have a field index, so undo any defines
664 of index -> strchr and rindex -> strrchr. */
665
666 #undef rindex
667 #undef index
668
669 #include <signal.h>
670
671 #ifndef CROSS_COMPILE
672 #include <a.out.h>
673 #else
674 #include "mips/a.out.h"
675 #endif /* CROSS_COMPILE */
676
677 #if defined (USG) || !defined (HAVE_STAB_H)
678 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
679 #else
680 #include <stab.h> /* On BSD, use the system's stab.h. */
681 #endif /* not USG */
682
683 #ifdef __GNU_STAB__
684 #define STAB_CODE_TYPE enum __stab_debug_code
685 #else
686 #define STAB_CODE_TYPE int
687 #endif
688
689 #ifndef MALLOC_CHECK
690 #ifdef __SABER__
691 #define MALLOC_CHECK
692 #endif
693 #endif
694
695 #define IS_ASM_IDENT(ch) \
696 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
697
698 \f
699 /* Redefinition of storage classes as an enumeration for better
700 debugging. */
701
702 typedef enum sc {
703 sc_Nil = scNil, /* no storage class */
704 sc_Text = scText, /* text symbol */
705 sc_Data = scData, /* initialized data symbol */
706 sc_Bss = scBss, /* un-initialized data symbol */
707 sc_Register = scRegister, /* value of symbol is register number */
708 sc_Abs = scAbs, /* value of symbol is absolute */
709 sc_Undefined = scUndefined, /* who knows? */
710 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
711 sc_Bits = scBits, /* this is a bit field */
712 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
713 sc_RegImage = scRegImage, /* register value saved on stack */
714 sc_Info = scInfo, /* symbol contains debugger information */
715 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
716 sc_SData = scSData, /* load time only small data */
717 sc_SBss = scSBss, /* load time only small common */
718 sc_RData = scRData, /* load time only read only data */
719 sc_Var = scVar, /* Var parameter (fortran,pascal) */
720 sc_Common = scCommon, /* common variable */
721 sc_SCommon = scSCommon, /* small common */
722 sc_VarRegister = scVarRegister, /* Var parameter in a register */
723 sc_Variant = scVariant, /* Variant record */
724 sc_SUndefined = scSUndefined, /* small undefined(external) data */
725 sc_Init = scInit, /* .init section symbol */
726 sc_Max = scMax /* Max storage class+1 */
727 } sc_t;
728
729 /* Redefinition of symbol type. */
730
731 typedef enum st {
732 st_Nil = stNil, /* Nuthin' special */
733 st_Global = stGlobal, /* external symbol */
734 st_Static = stStatic, /* static */
735 st_Param = stParam, /* procedure argument */
736 st_Local = stLocal, /* local variable */
737 st_Label = stLabel, /* label */
738 st_Proc = stProc, /* " " Procedure */
739 st_Block = stBlock, /* beginning of block */
740 st_End = stEnd, /* end (of anything) */
741 st_Member = stMember, /* member (of anything - struct/union/enum */
742 st_Typedef = stTypedef, /* type definition */
743 st_File = stFile, /* file name */
744 st_RegReloc = stRegReloc, /* register relocation */
745 st_Forward = stForward, /* forwarding address */
746 st_StaticProc = stStaticProc, /* load time only static procs */
747 st_Constant = stConstant, /* const */
748 st_Str = stStr, /* string */
749 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
750 st_Expr = stExpr, /* 2+2 vs. 4 */
751 st_Type = stType, /* post-coercion SER */
752 st_Max = stMax /* max type+1 */
753 } st_t;
754
755 /* Redefinition of type qualifiers. */
756
757 typedef enum tq {
758 tq_Nil = tqNil, /* bt is what you see */
759 tq_Ptr = tqPtr, /* pointer */
760 tq_Proc = tqProc, /* procedure */
761 tq_Array = tqArray, /* duh */
762 tq_Far = tqFar, /* longer addressing - 8086/8 land */
763 tq_Vol = tqVol, /* volatile */
764 tq_Max = tqMax /* Max type qualifier+1 */
765 } tq_t;
766
767 /* Redefinition of basic types. */
768
769 typedef enum bt {
770 bt_Nil = btNil, /* undefined */
771 bt_Adr = btAdr, /* address - integer same size as pointer */
772 bt_Char = btChar, /* character */
773 bt_UChar = btUChar, /* unsigned character */
774 bt_Short = btShort, /* short */
775 bt_UShort = btUShort, /* unsigned short */
776 bt_Int = btInt, /* int */
777 bt_UInt = btUInt, /* unsigned int */
778 bt_Long = btLong, /* long */
779 bt_ULong = btULong, /* unsigned long */
780 bt_Float = btFloat, /* float (real) */
781 bt_Double = btDouble, /* Double (real) */
782 bt_Struct = btStruct, /* Structure (Record) */
783 bt_Union = btUnion, /* Union (variant) */
784 bt_Enum = btEnum, /* Enumerated */
785 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
786 bt_Range = btRange, /* subrange of int */
787 bt_Set = btSet, /* pascal sets */
788 bt_Complex = btComplex, /* fortran complex */
789 bt_DComplex = btDComplex, /* fortran double complex */
790 bt_Indirect = btIndirect, /* forward or unnamed typedef */
791 bt_FixedDec = btFixedDec, /* Fixed Decimal */
792 bt_FloatDec = btFloatDec, /* Float Decimal */
793 bt_String = btString, /* Varying Length Character String */
794 bt_Bit = btBit, /* Aligned Bit String */
795 bt_Picture = btPicture, /* Picture */
796
797 #ifdef btVoid
798 bt_Void = btVoid, /* Void */
799 #else
800 #define bt_Void bt_Nil
801 #endif
802
803 bt_Max = btMax /* Max basic type+1 */
804 } bt_t;
805
806 \f
807
808 /* Basic COFF storage classes. */
809 enum coff_storage {
810 C_EFCN = -1,
811 C_NULL = 0,
812 C_AUTO = 1,
813 C_EXT = 2,
814 C_STAT = 3,
815 C_REG = 4,
816 C_EXTDEF = 5,
817 C_LABEL = 6,
818 C_ULABEL = 7,
819 C_MOS = 8,
820 C_ARG = 9,
821 C_STRTAG = 10,
822 C_MOU = 11,
823 C_UNTAG = 12,
824 C_TPDEF = 13,
825 C_USTATIC = 14,
826 C_ENTAG = 15,
827 C_MOE = 16,
828 C_REGPARM = 17,
829 C_FIELD = 18,
830 C_BLOCK = 100,
831 C_FCN = 101,
832 C_EOS = 102,
833 C_FILE = 103,
834 C_LINE = 104,
835 C_ALIAS = 105,
836 C_HIDDEN = 106,
837 C_MAX = 107
838 } coff_storage_t;
839
840 /* Regular COFF fundamental type. */
841 typedef enum coff_type {
842 T_NULL = 0,
843 T_ARG = 1,
844 T_CHAR = 2,
845 T_SHORT = 3,
846 T_INT = 4,
847 T_LONG = 5,
848 T_FLOAT = 6,
849 T_DOUBLE = 7,
850 T_STRUCT = 8,
851 T_UNION = 9,
852 T_ENUM = 10,
853 T_MOE = 11,
854 T_UCHAR = 12,
855 T_USHORT = 13,
856 T_UINT = 14,
857 T_ULONG = 15,
858 T_MAX = 16
859 } coff_type_t;
860
861 /* Regular COFF derived types. */
862 typedef enum coff_dt {
863 DT_NON = 0,
864 DT_PTR = 1,
865 DT_FCN = 2,
866 DT_ARY = 3,
867 DT_MAX = 4
868 } coff_dt_t;
869
870 #define N_BTMASK 017 /* bitmask to isolate basic type */
871 #define N_TMASK 003 /* bitmask to isolate derived type */
872 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
873 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
874 #define N_TQ 6 /* # of type qualifiers */
875
876 /* States for whether to hash type or not. */
877 typedef enum hash_state {
878 hash_no = 0, /* don't hash type */
879 hash_yes = 1, /* ok to hash type, or use previous hash */
880 hash_record = 2 /* ok to record hash, but don't use prev. */
881 } hash_state_t;
882
883
884 /* Types of different sized allocation requests. */
885 enum alloc_type {
886 alloc_type_none, /* dummy value */
887 alloc_type_scope, /* nested scopes linked list */
888 alloc_type_vlinks, /* glue linking pages in varray */
889 alloc_type_shash, /* string hash element */
890 alloc_type_thash, /* type hash element */
891 alloc_type_tag, /* struct/union/tag element */
892 alloc_type_forward, /* element to hold unknown tag */
893 alloc_type_thead, /* head of type hash list */
894 alloc_type_varray, /* general varray allocation */
895 alloc_type_last /* last+1 element for array bounds */
896 };
897
898 \f
899 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
900 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
901
902
903 /* Structures to provide n-number of virtual arrays, each of which can
904 grow linearly, and which are written in the object file as sequential
905 pages. On systems with a BSD malloc that define USE_MALLOC, the
906 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
907 adds its overhead, and rounds up to the next power of 2. Pages are
908 linked together via a linked list.
909
910 If PAGE_SIZE is > 4096, the string length in the shash_t structure
911 can't be represented (assuming there are strings > 4096 bytes). */
912
913 #ifndef PAGE_SIZE
914 #define PAGE_SIZE 4096 /* size of varray pages */
915 #endif
916
917 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
918
919
920 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
921 #ifndef USE_MALLOC /* in one memory request */
922 #define MAX_CLUSTER_PAGES 64
923 #else
924 #define MAX_CLUSTER_PAGES 63
925 #endif
926 #endif
927
928
929 /* Linked list connecting separate page allocations. */
930 typedef struct vlinks {
931 struct vlinks *prev; /* previous set of pages */
932 struct vlinks *next; /* next set of pages */
933 union page *datum; /* start of page */
934 unsigned long start_index; /* starting index # of page */
935 } vlinks_t;
936
937
938 /* Virtual array header. */
939 typedef struct varray {
940 vlinks_t *first; /* first page link */
941 vlinks_t *last; /* last page link */
942 unsigned long num_allocated; /* # objects allocated */
943 unsigned short object_size; /* size in bytes of each object */
944 unsigned short objects_per_page; /* # objects that can fit on a page */
945 unsigned short objects_last_page; /* # objects allocated on last page */
946 } varray_t;
947
948 #ifndef MALLOC_CHECK
949 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
950 #else
951 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
952 #endif
953
954 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
955 (vlinks_t *) 0, /* first */ \
956 (vlinks_t *) 0, /* last */ \
957 0, /* num_allocated */ \
958 sizeof (type), /* object_size */ \
959 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
960 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
961 }
962
963 /* Master type for indexes within the symbol table. */
964 typedef unsigned long symint_t;
965
966
967 /* Linked list support for nested scopes (file, block, structure, etc.). */
968 typedef struct scope {
969 struct scope *prev; /* previous scope level */
970 struct scope *free; /* free list pointer */
971 SYMR *lsym; /* pointer to local symbol node */
972 symint_t lnumber; /* lsym index */
973 st_t type; /* type of the node */
974 } scope_t;
975
976
977 /* Forward reference list for tags referenced, but not yet defined. */
978 typedef struct forward {
979 struct forward *next; /* next forward reference */
980 struct forward *free; /* free list pointer */
981 AUXU *ifd_ptr; /* pointer to store file index */
982 AUXU *index_ptr; /* pointer to store symbol index */
983 AUXU *type_ptr; /* pointer to munge type info */
984 } forward_t;
985
986
987 /* Linked list support for tags. The first tag in the list is always
988 the current tag for that block. */
989 typedef struct tag {
990 struct tag *free; /* free list pointer */
991 struct shash *hash_ptr; /* pointer to the hash table head */
992 struct tag *same_name; /* tag with same name in outer scope */
993 struct tag *same_block; /* next tag defined in the same block. */
994 struct forward *forward_ref; /* list of forward references */
995 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
996 symint_t ifd; /* file # tag defined in */
997 symint_t indx; /* index within file's local symbols */
998 } tag_t;
999
1000
1001 /* Head of a block's linked list of tags. */
1002 typedef struct thead {
1003 struct thead *prev; /* previous block */
1004 struct thead *free; /* free list pointer */
1005 struct tag *first_tag; /* first tag in block defined */
1006 } thead_t;
1007
1008
1009 /* Union containing pointers to each the small structures which are freed up. */
1010 typedef union small_free {
1011 scope_t *f_scope; /* scope structure */
1012 thead_t *f_thead; /* tag head structure */
1013 tag_t *f_tag; /* tag element structure */
1014 forward_t *f_forward; /* forward tag reference */
1015 } small_free_t;
1016
1017
1018 /* String hash table support. The size of the hash table must fit
1019 within a page. */
1020
1021 #ifndef SHASH_SIZE
1022 #define SHASH_SIZE 1009
1023 #endif
1024
1025 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1026
1027 typedef struct shash {
1028 struct shash *next; /* next hash value */
1029 char *string; /* string we are hashing */
1030 symint_t len; /* string length */
1031 symint_t indx; /* index within string table */
1032 EXTR *esym_ptr; /* global symbol pointer */
1033 SYMR *sym_ptr; /* local symbol pointer */
1034 SYMR *end_ptr; /* symbol pointer to end block */
1035 tag_t *tag_ptr; /* tag pointer */
1036 PDR *proc_ptr; /* procedure descriptor pointer */
1037 } shash_t;
1038
1039
1040 /* Type hash table support. The size of the hash table must fit
1041 within a page with the other extended file descriptor information.
1042 Because unique types which are hashed are fewer in number than
1043 strings, we use a smaller hash value. */
1044
1045 #ifndef THASH_SIZE
1046 #define THASH_SIZE 113
1047 #endif
1048
1049 typedef struct thash {
1050 struct thash *next; /* next hash value */
1051 AUXU type; /* type we are hashing */
1052 symint_t indx; /* index within string table */
1053 } thash_t;
1054
1055
1056 /* Extended file descriptor that contains all of the support necessary
1057 to add things to each file separately. */
1058 typedef struct efdr {
1059 FDR fdr; /* File header to be written out */
1060 FDR *orig_fdr; /* original file header */
1061 char *name; /* filename */
1062 int name_len; /* length of the filename */
1063 symint_t void_type; /* aux. pointer to 'void' type */
1064 symint_t int_type; /* aux. pointer to 'int' type */
1065 scope_t *cur_scope; /* current nested scopes */
1066 symint_t file_index; /* current file number */
1067 int nested_scopes; /* # nested scopes */
1068 varray_t strings; /* local strings */
1069 varray_t symbols; /* local symbols */
1070 varray_t procs; /* procedures */
1071 varray_t aux_syms; /* auxiliary symbols */
1072 struct efdr *next_file; /* next file descriptor */
1073 /* string/type hash tables */
1074 shash_t **shash_head; /* string hash table */
1075 thash_t *thash_head[THASH_SIZE];
1076 } efdr_t;
1077
1078 /* Pre-initialized extended file structure. */
1079 static efdr_t init_file =
1080 {
1081 { /* FDR structure */
1082 #ifdef __alpha
1083 0, /* adr: memory address of beginning of file */
1084 0, /* cbLineOffset: byte offset from header for this file ln's */
1085 0, /* cbLine: size of lines for this file */
1086 0, /* cbSs: number of bytes in the ss */
1087 0, /* rss: file name (of source, if known) */
1088 0, /* issBase: file's string space */
1089 0, /* isymBase: beginning of symbols */
1090 0, /* csym: count file's of symbols */
1091 0, /* ilineBase: file's line symbols */
1092 0, /* cline: count of file's line symbols */
1093 0, /* ioptBase: file's optimization entries */
1094 0, /* copt: count of file's optimization entries */
1095 0, /* ipdFirst: start of procedures for this file */
1096 0, /* cpd: count of procedures for this file */
1097 0, /* iauxBase: file's auxiliary entries */
1098 0, /* caux: count of file's auxiliary entries */
1099 0, /* rfdBase: index into the file indirect table */
1100 0, /* crfd: count file indirect entries */
1101 langC, /* lang: language for this file */
1102 1, /* fMerge: whether this file can be merged */
1103 0, /* fReadin: true if read in (not just created) */
1104 #ifdef HOST_WORDS_BIG_ENDIAN
1105 1, /* fBigendian: if 1, compiled on big endian machine */
1106 #else
1107 0, /* fBigendian: if 1, compiled on big endian machine */
1108 #endif
1109 0, /* fTrim: whether the symbol table was trimmed */
1110 GLEVEL_2, /* glevel: level this file was compiled with */
1111 0, /* reserved: reserved for future use */
1112 #else
1113 0, /* adr: memory address of beginning of file */
1114 0, /* rss: file name (of source, if known) */
1115 0, /* issBase: file's string space */
1116 0, /* cbSs: number of bytes in the ss */
1117 0, /* isymBase: beginning of symbols */
1118 0, /* csym: count file's of symbols */
1119 0, /* ilineBase: file's line symbols */
1120 0, /* cline: count of file's line symbols */
1121 0, /* ioptBase: file's optimization entries */
1122 0, /* copt: count of file's optimization entries */
1123 0, /* ipdFirst: start of procedures for this file */
1124 0, /* cpd: count of procedures for this file */
1125 0, /* iauxBase: file's auxiliary entries */
1126 0, /* caux: count of file's auxiliary entries */
1127 0, /* rfdBase: index into the file indirect table */
1128 0, /* crfd: count file indirect entries */
1129 langC, /* lang: language for this file */
1130 1, /* fMerge: whether this file can be merged */
1131 0, /* fReadin: true if read in (not just created) */
1132 #ifdef HOST_WORDS_BIG_ENDIAN
1133 1, /* fBigendian: if 1, compiled on big endian machine */
1134 #else
1135 0, /* fBigendian: if 1, compiled on big endian machine */
1136 #endif
1137 GLEVEL_2, /* glevel: level this file was compiled with */
1138 0, /* reserved: reserved for future use */
1139 0, /* cbLineOffset: byte offset from header for this file ln's */
1140 0, /* cbLine: size of lines for this file */
1141 #endif
1142 },
1143
1144 (FDR *) 0, /* orig_fdr: original file header pointer */
1145 (char *) 0, /* name: pointer to filename */
1146 0, /* name_len: length of filename */
1147 0, /* void_type: ptr to aux node for void type */
1148 0, /* int_type: ptr to aux node for int type */
1149 (scope_t *) 0, /* cur_scope: current scope being processed */
1150 0, /* file_index: current file # */
1151 0, /* nested_scopes: # nested scopes */
1152 INIT_VARRAY (char), /* strings: local string varray */
1153 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1154 INIT_VARRAY (PDR), /* procs: procedure varray */
1155 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1156
1157 (struct efdr *) 0, /* next_file: next file structure */
1158
1159 (shash_t **) 0, /* shash_head: string hash table */
1160 { 0 }, /* thash_head: type hash table */
1161 };
1162
1163
1164 static efdr_t *first_file; /* first file descriptor */
1165 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1166
1167
1168 /* Union of various things that are held in pages. */
1169 typedef union page {
1170 char byte [ PAGE_SIZE ];
1171 unsigned char ubyte [ PAGE_SIZE ];
1172 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1173 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1174 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1175 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1176 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1177 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1178 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1179 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1180 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1181 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1182 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1183 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1184 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1185 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1186 } page_t;
1187
1188
1189 /* Structure holding allocation information for small sized structures. */
1190 typedef struct alloc_info {
1191 const char *alloc_name; /* name of this allocation type (must be first) */
1192 page_t *cur_page; /* current page being allocated from */
1193 small_free_t free_list; /* current free list if any */
1194 int unallocated; /* number of elements unallocated on page */
1195 int total_alloc; /* total number of allocations */
1196 int total_free; /* total number of frees */
1197 int total_pages; /* total number of pages allocated */
1198 } alloc_info_t;
1199
1200 /* Type information collected together. */
1201 typedef struct type_info {
1202 bt_t basic_type; /* basic type */
1203 coff_type_t orig_type; /* original COFF-based type */
1204 int num_tq; /* # type qualifiers */
1205 int num_dims; /* # dimensions */
1206 int num_sizes; /* # sizes */
1207 int extra_sizes; /* # extra sizes not tied with dims */
1208 tag_t * tag_ptr; /* tag pointer */
1209 int bitfield; /* symbol is a bitfield */
1210 int unknown_tag; /* this is an unknown tag */
1211 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1212 symint_t dimensions [N_TQ]; /* dimensions for each array */
1213 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1214 struct/union/enum + bitfield size */
1215 } type_info_t;
1216
1217 /* Pre-initialized type_info struct. */
1218 static type_info_t type_info_init = {
1219 bt_Nil, /* basic type */
1220 T_NULL, /* original COFF-based type */
1221 0, /* # type qualifiers */
1222 0, /* # dimensions */
1223 0, /* # sizes */
1224 0, /* sizes not tied with dims */
1225 NULL, /* ptr to tag */
1226 0, /* bitfield */
1227 0, /* unknown tag */
1228 { /* type qualifiers */
1229 tq_Nil,
1230 tq_Nil,
1231 tq_Nil,
1232 tq_Nil,
1233 tq_Nil,
1234 tq_Nil,
1235 },
1236 { /* dimensions */
1237 0,
1238 0,
1239 0,
1240 0,
1241 0,
1242 0
1243 },
1244 { /* sizes */
1245 0,
1246 0,
1247 0,
1248 0,
1249 0,
1250 0,
1251 0,
1252 0,
1253 },
1254 };
1255
1256
1257 /* Global virtual arrays & hash table for external strings as well as
1258 for the tags table and global tables for file descriptors, and
1259 dense numbers. */
1260
1261 static varray_t file_desc = INIT_VARRAY (efdr_t);
1262 static varray_t dense_num = INIT_VARRAY (DNR);
1263 static varray_t tag_strings = INIT_VARRAY (char);
1264 static varray_t ext_strings = INIT_VARRAY (char);
1265 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1266
1267 static shash_t *orig_str_hash[SHASH_SIZE];
1268 static shash_t *ext_str_hash [SHASH_SIZE];
1269 static shash_t *tag_hash [SHASH_SIZE];
1270
1271 /* Static types for int and void. Also, remember the last function's
1272 type (which is set up when we encounter the declaration for the
1273 function, and used when the end block for the function is emitted. */
1274
1275 static type_info_t int_type_info;
1276 static type_info_t void_type_info;
1277 static type_info_t last_func_type_info;
1278 static EXTR *last_func_eptr;
1279
1280
1281 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1282 really should use bt_Void, but this causes the current ecoff GDB to
1283 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1284 2.0) doesn't understand it, even though the compiler generates it.
1285 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1286 suite, but for now go with what works. */
1287
1288 static bt_t map_coff_types[ (int)T_MAX ] = {
1289 bt_Nil, /* T_NULL */
1290 bt_Nil, /* T_ARG */
1291 bt_Char, /* T_CHAR */
1292 bt_Short, /* T_SHORT */
1293 bt_Int, /* T_INT */
1294 bt_Long, /* T_LONG */
1295 bt_Float, /* T_FLOAT */
1296 bt_Double, /* T_DOUBLE */
1297 bt_Struct, /* T_STRUCT */
1298 bt_Union, /* T_UNION */
1299 bt_Enum, /* T_ENUM */
1300 bt_Enum, /* T_MOE */
1301 bt_UChar, /* T_UCHAR */
1302 bt_UShort, /* T_USHORT */
1303 bt_UInt, /* T_UINT */
1304 bt_ULong /* T_ULONG */
1305 };
1306
1307 /* Convert COFF storage class to ECOFF storage class. */
1308 static sc_t map_coff_storage[ (int)C_MAX ] = {
1309 sc_Nil, /* 0: C_NULL */
1310 sc_Abs, /* 1: C_AUTO auto var */
1311 sc_Undefined, /* 2: C_EXT external */
1312 sc_Data, /* 3: C_STAT static */
1313 sc_Register, /* 4: C_REG register */
1314 sc_Undefined, /* 5: C_EXTDEF ??? */
1315 sc_Text, /* 6: C_LABEL label */
1316 sc_Text, /* 7: C_ULABEL user label */
1317 sc_Info, /* 8: C_MOS member of struct */
1318 sc_Abs, /* 9: C_ARG argument */
1319 sc_Info, /* 10: C_STRTAG struct tag */
1320 sc_Info, /* 11: C_MOU member of union */
1321 sc_Info, /* 12: C_UNTAG union tag */
1322 sc_Info, /* 13: C_TPDEF typedef */
1323 sc_Data, /* 14: C_USTATIC ??? */
1324 sc_Info, /* 15: C_ENTAG enum tag */
1325 sc_Info, /* 16: C_MOE member of enum */
1326 sc_Register, /* 17: C_REGPARM register parameter */
1327 sc_Bits, /* 18; C_FIELD bitfield */
1328 sc_Nil, /* 19 */
1329 sc_Nil, /* 20 */
1330 sc_Nil, /* 21 */
1331 sc_Nil, /* 22 */
1332 sc_Nil, /* 23 */
1333 sc_Nil, /* 24 */
1334 sc_Nil, /* 25 */
1335 sc_Nil, /* 26 */
1336 sc_Nil, /* 27 */
1337 sc_Nil, /* 28 */
1338 sc_Nil, /* 29 */
1339 sc_Nil, /* 30 */
1340 sc_Nil, /* 31 */
1341 sc_Nil, /* 32 */
1342 sc_Nil, /* 33 */
1343 sc_Nil, /* 34 */
1344 sc_Nil, /* 35 */
1345 sc_Nil, /* 36 */
1346 sc_Nil, /* 37 */
1347 sc_Nil, /* 38 */
1348 sc_Nil, /* 39 */
1349 sc_Nil, /* 40 */
1350 sc_Nil, /* 41 */
1351 sc_Nil, /* 42 */
1352 sc_Nil, /* 43 */
1353 sc_Nil, /* 44 */
1354 sc_Nil, /* 45 */
1355 sc_Nil, /* 46 */
1356 sc_Nil, /* 47 */
1357 sc_Nil, /* 48 */
1358 sc_Nil, /* 49 */
1359 sc_Nil, /* 50 */
1360 sc_Nil, /* 51 */
1361 sc_Nil, /* 52 */
1362 sc_Nil, /* 53 */
1363 sc_Nil, /* 54 */
1364 sc_Nil, /* 55 */
1365 sc_Nil, /* 56 */
1366 sc_Nil, /* 57 */
1367 sc_Nil, /* 58 */
1368 sc_Nil, /* 59 */
1369 sc_Nil, /* 60 */
1370 sc_Nil, /* 61 */
1371 sc_Nil, /* 62 */
1372 sc_Nil, /* 63 */
1373 sc_Nil, /* 64 */
1374 sc_Nil, /* 65 */
1375 sc_Nil, /* 66 */
1376 sc_Nil, /* 67 */
1377 sc_Nil, /* 68 */
1378 sc_Nil, /* 69 */
1379 sc_Nil, /* 70 */
1380 sc_Nil, /* 71 */
1381 sc_Nil, /* 72 */
1382 sc_Nil, /* 73 */
1383 sc_Nil, /* 74 */
1384 sc_Nil, /* 75 */
1385 sc_Nil, /* 76 */
1386 sc_Nil, /* 77 */
1387 sc_Nil, /* 78 */
1388 sc_Nil, /* 79 */
1389 sc_Nil, /* 80 */
1390 sc_Nil, /* 81 */
1391 sc_Nil, /* 82 */
1392 sc_Nil, /* 83 */
1393 sc_Nil, /* 84 */
1394 sc_Nil, /* 85 */
1395 sc_Nil, /* 86 */
1396 sc_Nil, /* 87 */
1397 sc_Nil, /* 88 */
1398 sc_Nil, /* 89 */
1399 sc_Nil, /* 90 */
1400 sc_Nil, /* 91 */
1401 sc_Nil, /* 92 */
1402 sc_Nil, /* 93 */
1403 sc_Nil, /* 94 */
1404 sc_Nil, /* 95 */
1405 sc_Nil, /* 96 */
1406 sc_Nil, /* 97 */
1407 sc_Nil, /* 98 */
1408 sc_Nil, /* 99 */
1409 sc_Text, /* 100: C_BLOCK block start/end */
1410 sc_Text, /* 101: C_FCN function start/end */
1411 sc_Info, /* 102: C_EOS end of struct/union/enum */
1412 sc_Nil, /* 103: C_FILE file start */
1413 sc_Nil, /* 104: C_LINE line number */
1414 sc_Nil, /* 105: C_ALIAS combined type info */
1415 sc_Nil, /* 106: C_HIDDEN ??? */
1416 };
1417
1418 /* Convert COFF storage class to ECOFF symbol type. */
1419 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1420 st_Nil, /* 0: C_NULL */
1421 st_Local, /* 1: C_AUTO auto var */
1422 st_Global, /* 2: C_EXT external */
1423 st_Static, /* 3: C_STAT static */
1424 st_Local, /* 4: C_REG register */
1425 st_Global, /* 5: C_EXTDEF ??? */
1426 st_Label, /* 6: C_LABEL label */
1427 st_Label, /* 7: C_ULABEL user label */
1428 st_Member, /* 8: C_MOS member of struct */
1429 st_Param, /* 9: C_ARG argument */
1430 st_Block, /* 10: C_STRTAG struct tag */
1431 st_Member, /* 11: C_MOU member of union */
1432 st_Block, /* 12: C_UNTAG union tag */
1433 st_Typedef, /* 13: C_TPDEF typedef */
1434 st_Static, /* 14: C_USTATIC ??? */
1435 st_Block, /* 15: C_ENTAG enum tag */
1436 st_Member, /* 16: C_MOE member of enum */
1437 st_Param, /* 17: C_REGPARM register parameter */
1438 st_Member, /* 18; C_FIELD bitfield */
1439 st_Nil, /* 19 */
1440 st_Nil, /* 20 */
1441 st_Nil, /* 21 */
1442 st_Nil, /* 22 */
1443 st_Nil, /* 23 */
1444 st_Nil, /* 24 */
1445 st_Nil, /* 25 */
1446 st_Nil, /* 26 */
1447 st_Nil, /* 27 */
1448 st_Nil, /* 28 */
1449 st_Nil, /* 29 */
1450 st_Nil, /* 30 */
1451 st_Nil, /* 31 */
1452 st_Nil, /* 32 */
1453 st_Nil, /* 33 */
1454 st_Nil, /* 34 */
1455 st_Nil, /* 35 */
1456 st_Nil, /* 36 */
1457 st_Nil, /* 37 */
1458 st_Nil, /* 38 */
1459 st_Nil, /* 39 */
1460 st_Nil, /* 40 */
1461 st_Nil, /* 41 */
1462 st_Nil, /* 42 */
1463 st_Nil, /* 43 */
1464 st_Nil, /* 44 */
1465 st_Nil, /* 45 */
1466 st_Nil, /* 46 */
1467 st_Nil, /* 47 */
1468 st_Nil, /* 48 */
1469 st_Nil, /* 49 */
1470 st_Nil, /* 50 */
1471 st_Nil, /* 51 */
1472 st_Nil, /* 52 */
1473 st_Nil, /* 53 */
1474 st_Nil, /* 54 */
1475 st_Nil, /* 55 */
1476 st_Nil, /* 56 */
1477 st_Nil, /* 57 */
1478 st_Nil, /* 58 */
1479 st_Nil, /* 59 */
1480 st_Nil, /* 60 */
1481 st_Nil, /* 61 */
1482 st_Nil, /* 62 */
1483 st_Nil, /* 63 */
1484 st_Nil, /* 64 */
1485 st_Nil, /* 65 */
1486 st_Nil, /* 66 */
1487 st_Nil, /* 67 */
1488 st_Nil, /* 68 */
1489 st_Nil, /* 69 */
1490 st_Nil, /* 70 */
1491 st_Nil, /* 71 */
1492 st_Nil, /* 72 */
1493 st_Nil, /* 73 */
1494 st_Nil, /* 74 */
1495 st_Nil, /* 75 */
1496 st_Nil, /* 76 */
1497 st_Nil, /* 77 */
1498 st_Nil, /* 78 */
1499 st_Nil, /* 79 */
1500 st_Nil, /* 80 */
1501 st_Nil, /* 81 */
1502 st_Nil, /* 82 */
1503 st_Nil, /* 83 */
1504 st_Nil, /* 84 */
1505 st_Nil, /* 85 */
1506 st_Nil, /* 86 */
1507 st_Nil, /* 87 */
1508 st_Nil, /* 88 */
1509 st_Nil, /* 89 */
1510 st_Nil, /* 90 */
1511 st_Nil, /* 91 */
1512 st_Nil, /* 92 */
1513 st_Nil, /* 93 */
1514 st_Nil, /* 94 */
1515 st_Nil, /* 95 */
1516 st_Nil, /* 96 */
1517 st_Nil, /* 97 */
1518 st_Nil, /* 98 */
1519 st_Nil, /* 99 */
1520 st_Block, /* 100: C_BLOCK block start/end */
1521 st_Proc, /* 101: C_FCN function start/end */
1522 st_End, /* 102: C_EOS end of struct/union/enum */
1523 st_File, /* 103: C_FILE file start */
1524 st_Nil, /* 104: C_LINE line number */
1525 st_Nil, /* 105: C_ALIAS combined type info */
1526 st_Nil, /* 106: C_HIDDEN ??? */
1527 };
1528
1529 /* Map COFF derived types to ECOFF type qualifiers. */
1530 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1531 tq_Nil, /* 0: DT_NON no more qualifiers */
1532 tq_Ptr, /* 1: DT_PTR pointer */
1533 tq_Proc, /* 2: DT_FCN function */
1534 tq_Array, /* 3: DT_ARY array */
1535 };
1536
1537
1538 /* Keep track of different sized allocation requests. */
1539 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1540
1541 \f
1542 /* Pointers and such to the original symbol table that is read in. */
1543 static struct filehdr orig_file_header; /* global object file header */
1544
1545 static HDRR orig_sym_hdr; /* symbolic header on input */
1546 static char *orig_linenum; /* line numbers */
1547 static DNR *orig_dense; /* dense numbers */
1548 static PDR *orig_procs; /* procedures */
1549 static SYMR *orig_local_syms; /* local symbols */
1550 static OPTR *orig_opt_syms; /* optimization symbols */
1551 static AUXU *orig_aux_syms; /* auxiliary symbols */
1552 static char *orig_local_strs; /* local strings */
1553 static char *orig_ext_strs; /* external strings */
1554 static FDR *orig_files; /* file descriptors */
1555 static symint_t *orig_rfds; /* relative file desc's */
1556 static EXTR *orig_ext_syms; /* external symbols */
1557
1558 /* Macros to convert an index into a given object within the original
1559 symbol table. */
1560 #define CHECK(num,max,str) \
1561 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1562
1563 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1564 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1565 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1566 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1567 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1568 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1569 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1570 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1571 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1572 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1573 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1574
1575 /* Various other statics. */
1576 static HDRR symbolic_header; /* symbolic header */
1577 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1578 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1579 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1580 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1581 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1582 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1583 static long file_offset = 0; /* current file offset */
1584 static long max_file_offset = 0; /* maximum file offset */
1585 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1586 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1587 static char *progname = (char *) 0; /* program name for errors */
1588 static const char *input_name = "stdin"; /* name of input file */
1589 static char *object_name = (char *) 0; /* tmp. name of object file */
1590 static char *obj_in_name = (char *) 0; /* name of input object file */
1591 static char *cur_line_start = (char *) 0; /* current line read in */
1592 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1593 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1594 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1595 static long line_number = 0; /* current input line number */
1596 static int debug = 0; /* trace functions */
1597 static int version = 0; /* print version # */
1598 static int had_errors = 0; /* != 0 if errors were found */
1599 static int rename_output = 0; /* != 0 if rename output file*/
1600 static int delete_input = 0; /* != 0 if delete input after done */
1601 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1602
1603
1604 /* Pseudo symbol to use when putting stabs into the symbol table. */
1605 #ifndef STABS_SYMBOL
1606 #define STABS_SYMBOL "@stabs"
1607 #endif
1608
1609 static char stabs_symbol[] = STABS_SYMBOL;
1610
1611 \f
1612 /* Forward reference for functions. See the definition for more details. */
1613
1614 #ifndef STATIC
1615 #define STATIC static
1616 #endif
1617
1618 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1619
1620 STATIC shash_t *hash_string __proto((const char *,
1621 Ptrdiff_t,
1622 shash_t **,
1623 symint_t *));
1624
1625 STATIC symint_t add_string __proto((varray_t *,
1626 shash_t **,
1627 const char *,
1628 const char *,
1629 shash_t **));
1630
1631 STATIC symint_t add_local_symbol
1632 __proto((const char *,
1633 const char *,
1634 st_t,
1635 sc_t,
1636 symint_t,
1637 symint_t));
1638
1639 STATIC symint_t add_ext_symbol __proto((const char *,
1640 const char *,
1641 st_t,
1642 sc_t,
1643 long,
1644 symint_t,
1645 int));
1646
1647 STATIC symint_t add_aux_sym_symint
1648 __proto((symint_t));
1649
1650 STATIC symint_t add_aux_sym_rndx
1651 __proto((int, symint_t));
1652
1653 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1654 hash_state_t,
1655 thash_t **));
1656
1657 STATIC tag_t * get_tag __proto((const char *,
1658 const char *,
1659 symint_t,
1660 bt_t));
1661
1662 STATIC void add_unknown_tag __proto((tag_t *));
1663
1664 STATIC void add_procedure __proto((const char *,
1665 const char *));
1666
1667 STATIC void add_file __proto((const char *,
1668 const char *));
1669
1670 STATIC void add_bytes __proto((varray_t *,
1671 char *,
1672 Size_t));
1673
1674 STATIC void add_varray_page __proto((varray_t *));
1675
1676 STATIC void update_headers __proto((void));
1677
1678 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1679 STATIC void write_object __proto((void));
1680 STATIC const char *st_to_string __proto((st_t));
1681 STATIC const char *sc_to_string __proto((sc_t));
1682 STATIC char *read_line __proto((void));
1683 STATIC void parse_input __proto((void));
1684 STATIC void mark_stabs __proto((const char *));
1685 STATIC void parse_begin __proto((const char *));
1686 STATIC void parse_bend __proto((const char *));
1687 STATIC void parse_def __proto((const char *));
1688 STATIC void parse_end __proto((const char *));
1689 STATIC void parse_ent __proto((const char *));
1690 STATIC void parse_file __proto((const char *));
1691 STATIC void parse_stabs_common
1692 __proto((const char *, const char *, const char *));
1693 STATIC void parse_stabs __proto((const char *));
1694 STATIC void parse_stabn __proto((const char *));
1695 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1696 STATIC void copy_object __proto((void));
1697
1698 STATIC void catch_signal __proto((int)) ATTRIBUTE_NORETURN;
1699 STATIC page_t *allocate_page __proto((void));
1700
1701 STATIC page_t *allocate_multiple_pages
1702 __proto((Size_t));
1703
1704 STATIC void free_multiple_pages
1705 __proto((page_t *, Size_t));
1706
1707 #ifndef MALLOC_CHECK
1708 STATIC page_t *allocate_cluster
1709 __proto((Size_t));
1710 #endif
1711
1712 STATIC forward_t *allocate_forward __proto((void));
1713 STATIC scope_t *allocate_scope __proto((void));
1714 STATIC shash_t *allocate_shash __proto((void));
1715 STATIC tag_t *allocate_tag __proto((void));
1716 STATIC thash_t *allocate_thash __proto((void));
1717 STATIC thead_t *allocate_thead __proto((void));
1718 STATIC vlinks_t *allocate_vlinks __proto((void));
1719
1720 STATIC void free_forward __proto((forward_t *));
1721 STATIC void free_scope __proto((scope_t *));
1722 STATIC void free_tag __proto((tag_t *));
1723 STATIC void free_thead __proto((thead_t *));
1724
1725 STATIC char *local_index __proto((const char *, int));
1726 STATIC char *local_rindex __proto((const char *, int));
1727
1728 extern char *mktemp __proto((char *));
1729 extern long strtol __proto((const char *, char **, int));
1730
1731 extern char *optarg;
1732 extern int optind;
1733 extern int opterr;
1734 \f
1735 /* List of assembler pseudo ops and beginning sequences that need
1736 special actions. Someday, this should be a hash table, and such,
1737 but for now a linear list of names and calls to memcmp will
1738 do...... */
1739
1740 typedef struct _pseudo_ops {
1741 const char *name; /* pseudo-op in ascii */
1742 int len; /* length of name to compare */
1743 void (*func) __proto((const char *)); /* function to handle line */
1744 } pseudo_ops_t;
1745
1746 static pseudo_ops_t pseudo_ops[] = {
1747 { "#.def", sizeof("#.def")-1, parse_def },
1748 { "#.begin", sizeof("#.begin")-1, parse_begin },
1749 { "#.bend", sizeof("#.bend")-1, parse_bend },
1750 { ".end", sizeof(".end")-1, parse_end },
1751 { ".ent", sizeof(".ent")-1, parse_ent },
1752 { ".file", sizeof(".file")-1, parse_file },
1753 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1754 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1755 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1756 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1757 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1758 };
1759
1760 \f
1761 /* Add a page to a varray object. */
1762
1763 STATIC void
1764 add_varray_page (vp)
1765 varray_t *vp; /* varray to add page to */
1766 {
1767 vlinks_t *new_links = allocate_vlinks ();
1768
1769 #ifdef MALLOC_CHECK
1770 if (vp->object_size > 1)
1771 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1772 else
1773 #endif
1774 new_links->datum = allocate_page ();
1775
1776 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1777 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1778
1779 new_links->start_index = vp->num_allocated;
1780 vp->objects_last_page = 0;
1781
1782 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1783 vp->first = vp->last = new_links;
1784 else
1785 { /* 2nd or greater allocation */
1786 new_links->prev = vp->last;
1787 vp->last->next = new_links;
1788 vp->last = new_links;
1789 }
1790 }
1791
1792 \f
1793 /* Compute hash code (from tree.c) */
1794
1795 #define HASHBITS 30
1796
1797 STATIC shash_t *
1798 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1799 const char *text; /* ptr to text to hash */
1800 Ptrdiff_t hash_len; /* length of the text */
1801 shash_t **hash_tbl; /* hash table */
1802 symint_t *ret_hash_index; /* ptr to store hash index */
1803 {
1804 register unsigned long hi;
1805 register Ptrdiff_t i;
1806 register shash_t *ptr;
1807 register int first_ch = *text;
1808
1809 hi = hash_len;
1810 for (i = 0; i < hash_len; i++)
1811 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1812
1813 hi &= (1 << HASHBITS) - 1;
1814 hi %= SHASH_SIZE;
1815
1816 if (ret_hash_index != (symint_t *) 0)
1817 *ret_hash_index = hi;
1818
1819 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1820 if ((symint_t) hash_len == ptr->len
1821 && first_ch == ptr->string[0]
1822 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1823 break;
1824
1825 return ptr;
1826 }
1827
1828 \f
1829 /* Add a string (and null pad) to one of the string tables. A
1830 consequence of hashing strings, is that we don't let strings
1831 cross page boundaries. The extra nulls will be ignored. */
1832
1833 STATIC symint_t
1834 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1835 varray_t *vp; /* string virtual array */
1836 shash_t **hash_tbl; /* ptr to hash table */
1837 const char *start; /* 1st byte in string */
1838 const char *end_p1; /* 1st byte after string */
1839 shash_t **ret_hash; /* return hash pointer */
1840 {
1841 register Ptrdiff_t len = end_p1 - start;
1842 register shash_t *hash_ptr;
1843 symint_t hi;
1844
1845 if (len >= (Ptrdiff_t) PAGE_USIZE)
1846 fatal ("String too big (%ld bytes)", (long) len);
1847
1848 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1849 if (hash_ptr == (shash_t *) 0)
1850 {
1851 register char *p;
1852
1853 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1854 {
1855 vp->num_allocated
1856 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1857 add_varray_page (vp);
1858 }
1859
1860 hash_ptr = allocate_shash ();
1861 hash_ptr->next = hash_tbl[hi];
1862 hash_tbl[hi] = hash_ptr;
1863
1864 hash_ptr->len = len;
1865 hash_ptr->indx = vp->num_allocated;
1866 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1867
1868 vp->objects_last_page += len+1;
1869 vp->num_allocated += len+1;
1870
1871 while (len-- > 0)
1872 *p++ = *start++;
1873
1874 *p = '\0';
1875 }
1876
1877 if (ret_hash != (shash_t **) 0)
1878 *ret_hash = hash_ptr;
1879
1880 return hash_ptr->indx;
1881 }
1882
1883 \f
1884 /* Add a local symbol. */
1885
1886 STATIC symint_t
1887 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1888 const char *str_start; /* first byte in string */
1889 const char *str_end_p1; /* first byte after string */
1890 st_t type; /* symbol type */
1891 sc_t storage; /* storage class */
1892 symint_t value; /* value of symbol */
1893 symint_t indx; /* index to local/aux. syms */
1894 {
1895 register symint_t ret;
1896 register SYMR *psym;
1897 register scope_t *pscope;
1898 register thead_t *ptag_head;
1899 register tag_t *ptag;
1900 register tag_t *ptag_next;
1901 register varray_t *vp = &cur_file_ptr->symbols;
1902 register int scope_delta = 0;
1903 shash_t *hash_ptr = (shash_t *) 0;
1904
1905 if (vp->objects_last_page == vp->objects_per_page)
1906 add_varray_page (vp);
1907
1908 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1909
1910 psym->value = value;
1911 psym->st = (unsigned) type;
1912 psym->sc = (unsigned) storage;
1913 psym->index = indx;
1914 psym->iss = (str_start == (const char *) 0)
1915 ? 0
1916 : add_string (&cur_file_ptr->strings,
1917 &cur_file_ptr->shash_head[0],
1918 str_start,
1919 str_end_p1,
1920 &hash_ptr);
1921
1922 ret = vp->num_allocated++;
1923
1924 if (MIPS_IS_STAB(psym))
1925 return ret;
1926
1927 /* Save the symbol within the hash table if this is a static
1928 item, and it has a name. */
1929 if (hash_ptr != (shash_t *) 0
1930 && (type == st_Global || type == st_Static || type == st_Label
1931 || type == st_Proc || type == st_StaticProc))
1932 hash_ptr->sym_ptr = psym;
1933
1934 /* push or pop a scope if appropriate. */
1935 switch (type)
1936 {
1937 default:
1938 break;
1939
1940 case st_File: /* beginning of file */
1941 case st_Proc: /* procedure */
1942 case st_StaticProc: /* static procedure */
1943 case st_Block: /* begin scope */
1944 pscope = allocate_scope ();
1945 pscope->prev = cur_file_ptr->cur_scope;
1946 pscope->lsym = psym;
1947 pscope->lnumber = ret;
1948 pscope->type = type;
1949 cur_file_ptr->cur_scope = pscope;
1950
1951 if (type != st_File)
1952 scope_delta = 1;
1953
1954 /* For every block type except file, struct, union, or
1955 enumeration blocks, push a level on the tag stack. We omit
1956 file types, so that tags can span file boundaries. */
1957 if (type != st_File && storage != sc_Info)
1958 {
1959 ptag_head = allocate_thead ();
1960 ptag_head->first_tag = 0;
1961 ptag_head->prev = cur_tag_head;
1962 cur_tag_head = ptag_head;
1963 }
1964 break;
1965
1966 case st_End:
1967 pscope = cur_file_ptr->cur_scope;
1968 if (pscope == (scope_t *)0)
1969 error ("internal error, too many st_End's");
1970
1971 else
1972 {
1973 st_t begin_type = (st_t) pscope->lsym->st;
1974
1975 if (begin_type != st_File)
1976 scope_delta = -1;
1977
1978 /* Except for file, structure, union, or enumeration end
1979 blocks remove all tags created within this scope. */
1980 if (begin_type != st_File && storage != sc_Info)
1981 {
1982 ptag_head = cur_tag_head;
1983 cur_tag_head = ptag_head->prev;
1984
1985 for (ptag = ptag_head->first_tag;
1986 ptag != (tag_t *) 0;
1987 ptag = ptag_next)
1988 {
1989 if (ptag->forward_ref != (forward_t *) 0)
1990 add_unknown_tag (ptag);
1991
1992 ptag_next = ptag->same_block;
1993 ptag->hash_ptr->tag_ptr = ptag->same_name;
1994 free_tag (ptag);
1995 }
1996
1997 free_thead (ptag_head);
1998 }
1999
2000 cur_file_ptr->cur_scope = pscope->prev;
2001 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2002
2003 if (storage != sc_Info)
2004 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2005
2006 if (begin_type == st_File || begin_type == st_Block)
2007 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2008
2009 /* Functions push two or more aux words as follows:
2010 1st word: index+1 of the end symbol
2011 2nd word: type of the function (plus any aux words needed).
2012 Also, tie the external pointer back to the function begin symbol. */
2013 else
2014 {
2015 symint_t type;
2016 pscope->lsym->index = add_aux_sym_symint (ret+1);
2017 type = add_aux_sym_tir (&last_func_type_info,
2018 hash_no,
2019 &cur_file_ptr->thash_head[0]);
2020 if (last_func_eptr)
2021 {
2022 last_func_eptr->ifd = cur_file_ptr->file_index;
2023
2024 /* The index for an external st_Proc symbol is the index
2025 of the st_Proc symbol in the local symbol table. */
2026 last_func_eptr->asym.index = psym->index;
2027 }
2028 }
2029
2030 free_scope (pscope);
2031 }
2032 }
2033
2034 cur_file_ptr->nested_scopes += scope_delta;
2035
2036 if (debug && type != st_File
2037 && (debug > 2 || type == st_Block || type == st_End
2038 || type == st_Proc || type == st_StaticProc))
2039 {
2040 const char *sc_str = sc_to_string (storage);
2041 const char *st_str = st_to_string (type);
2042 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2043
2044 fprintf (stderr,
2045 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2046 value, depth, sc_str);
2047
2048 if (str_start && str_end_p1 - str_start > 0)
2049 fprintf (stderr, " st= %-11s name= %.*s\n",
2050 st_str, (int) (str_end_p1 - str_start), str_start);
2051 else
2052 {
2053 Size_t len = strlen (st_str);
2054 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2055 }
2056 }
2057
2058 return ret;
2059 }
2060
2061 \f
2062 /* Add an external symbol. */
2063
2064 STATIC symint_t
2065 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2066 const char *str_start; /* first byte in string */
2067 const char *str_end_p1; /* first byte after string */
2068 st_t type; /* symbol type */
2069 sc_t storage; /* storage class */
2070 long value; /* value of symbol */
2071 symint_t indx; /* index to local/aux. syms */
2072 int ifd; /* file index */
2073 {
2074 register EXTR *psym;
2075 register varray_t *vp = &ext_symbols;
2076 shash_t *hash_ptr = (shash_t *) 0;
2077
2078 if (debug > 1)
2079 {
2080 const char *sc_str = sc_to_string (storage);
2081 const char *st_str = st_to_string (type);
2082
2083 fprintf (stderr,
2084 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2085 value, ifd, sc_str);
2086
2087 if (str_start && str_end_p1 - str_start > 0)
2088 fprintf (stderr, " st= %-11s name= %.*s\n",
2089 st_str, (int) (str_end_p1 - str_start), str_start);
2090 else
2091 fprintf (stderr, " st= %s\n", st_str);
2092 }
2093
2094 if (vp->objects_last_page == vp->objects_per_page)
2095 add_varray_page (vp);
2096
2097 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2098
2099 psym->ifd = ifd;
2100 psym->asym.value = value;
2101 psym->asym.st = (unsigned) type;
2102 psym->asym.sc = (unsigned) storage;
2103 psym->asym.index = indx;
2104 psym->asym.iss = (str_start == (const char *) 0)
2105 ? 0
2106 : add_string (&ext_strings,
2107 &ext_str_hash[0],
2108 str_start,
2109 str_end_p1,
2110 &hash_ptr);
2111
2112 hash_ptr->esym_ptr = psym;
2113 return vp->num_allocated++;
2114 }
2115
2116 \f
2117 /* Add an auxiliary symbol (passing a symint). */
2118
2119 STATIC symint_t
2120 add_aux_sym_symint (aux_word)
2121 symint_t aux_word; /* auxiliary information word */
2122 {
2123 register AUXU *aux_ptr;
2124 register efdr_t *file_ptr = cur_file_ptr;
2125 register varray_t *vp = &file_ptr->aux_syms;
2126
2127 if (vp->objects_last_page == vp->objects_per_page)
2128 add_varray_page (vp);
2129
2130 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2131 aux_ptr->isym = aux_word;
2132
2133 return vp->num_allocated++;
2134 }
2135
2136
2137 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2138
2139 STATIC symint_t
2140 add_aux_sym_rndx (file_index, sym_index)
2141 int file_index;
2142 symint_t sym_index;
2143 {
2144 register AUXU *aux_ptr;
2145 register efdr_t *file_ptr = cur_file_ptr;
2146 register varray_t *vp = &file_ptr->aux_syms;
2147
2148 if (vp->objects_last_page == vp->objects_per_page)
2149 add_varray_page (vp);
2150
2151 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2152 aux_ptr->rndx.rfd = file_index;
2153 aux_ptr->rndx.index = sym_index;
2154
2155 return vp->num_allocated++;
2156 }
2157
2158 \f
2159 /* Add an auxiliary symbol (passing the basic type and possibly
2160 type qualifiers). */
2161
2162 STATIC symint_t
2163 add_aux_sym_tir (t, state, hash_tbl)
2164 type_info_t *t; /* current type information */
2165 hash_state_t state; /* whether to hash type or not */
2166 thash_t **hash_tbl; /* pointer to hash table to use */
2167 {
2168 register AUXU *aux_ptr;
2169 register efdr_t *file_ptr = cur_file_ptr;
2170 register varray_t *vp = &file_ptr->aux_syms;
2171 static AUXU init_aux;
2172 symint_t ret;
2173 int i;
2174 AUXU aux;
2175
2176 aux = init_aux;
2177 aux.ti.bt = (int) t->basic_type;
2178 aux.ti.continued = 0;
2179 aux.ti.fBitfield = t->bitfield;
2180
2181 aux.ti.tq0 = (int) t->type_qualifiers[0];
2182 aux.ti.tq1 = (int) t->type_qualifiers[1];
2183 aux.ti.tq2 = (int) t->type_qualifiers[2];
2184 aux.ti.tq3 = (int) t->type_qualifiers[3];
2185 aux.ti.tq4 = (int) t->type_qualifiers[4];
2186 aux.ti.tq5 = (int) t->type_qualifiers[5];
2187
2188
2189 /* For anything that adds additional information, we must not hash,
2190 so check here, and reset our state. */
2191
2192 if (state != hash_no
2193 && (t->type_qualifiers[0] == tq_Array
2194 || t->type_qualifiers[1] == tq_Array
2195 || t->type_qualifiers[2] == tq_Array
2196 || t->type_qualifiers[3] == tq_Array
2197 || t->type_qualifiers[4] == tq_Array
2198 || t->type_qualifiers[5] == tq_Array
2199 || t->basic_type == bt_Struct
2200 || t->basic_type == bt_Union
2201 || t->basic_type == bt_Enum
2202 || t->bitfield
2203 || t->num_dims > 0))
2204 state = hash_no;
2205
2206 /* See if we can hash this type, and save some space, but some types
2207 can't be hashed (because they contain arrays or continuations),
2208 and others can be put into the hash list, but cannot use existing
2209 types because other aux entries precede this one. */
2210
2211 if (state != hash_no)
2212 {
2213 register thash_t *hash_ptr;
2214 register symint_t hi;
2215
2216 hi = aux.isym & ((1 << HASHBITS) - 1);
2217 hi %= THASH_SIZE;
2218
2219 for (hash_ptr = hash_tbl[hi];
2220 hash_ptr != (thash_t *) 0;
2221 hash_ptr = hash_ptr->next)
2222 {
2223 if (aux.isym == hash_ptr->type.isym)
2224 break;
2225 }
2226
2227 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2228 return hash_ptr->indx;
2229
2230 if (hash_ptr == (thash_t *) 0)
2231 {
2232 hash_ptr = allocate_thash ();
2233 hash_ptr->next = hash_tbl[hi];
2234 hash_ptr->type = aux;
2235 hash_ptr->indx = vp->num_allocated;
2236 hash_tbl[hi] = hash_ptr;
2237 }
2238 }
2239
2240 /* Everything is set up, add the aux symbol. */
2241 if (vp->objects_last_page == vp->objects_per_page)
2242 add_varray_page (vp);
2243
2244 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2245 *aux_ptr = aux;
2246
2247 ret = vp->num_allocated++;
2248
2249 /* Add bitfield length if it exists.
2250
2251 NOTE: Mips documentation claims bitfield goes at the end of the
2252 AUX record, but the DECstation compiler emits it here.
2253 (This would only make a difference for enum bitfields.)
2254
2255 Also note: We use the last size given since gcc may emit 2
2256 for an enum bitfield. */
2257
2258 if (t->bitfield)
2259 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2260
2261
2262 /* Add tag information if needed. Structure, union, and enum
2263 references add 2 aux symbols: a [file index, symbol index]
2264 pointer to the structure type, and the current file index. */
2265
2266 if (t->basic_type == bt_Struct
2267 || t->basic_type == bt_Union
2268 || t->basic_type == bt_Enum)
2269 {
2270 register symint_t file_index = t->tag_ptr->ifd;
2271 register symint_t sym_index = t->tag_ptr->indx;
2272
2273 if (t->unknown_tag)
2274 {
2275 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2276 (void) add_aux_sym_symint ((symint_t)-1);
2277 }
2278 else if (sym_index != indexNil)
2279 {
2280 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2281 (void) add_aux_sym_symint (file_index);
2282 }
2283 else
2284 {
2285 register forward_t *forward_ref = allocate_forward ();
2286
2287 forward_ref->type_ptr = aux_ptr;
2288 forward_ref->next = t->tag_ptr->forward_ref;
2289 t->tag_ptr->forward_ref = forward_ref;
2290
2291 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2292 forward_ref->index_ptr
2293 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2294
2295 (void) add_aux_sym_symint (file_index);
2296 forward_ref->ifd_ptr
2297 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2298 }
2299 }
2300
2301 /* Add information about array bounds if they exist. */
2302 for (i = 0; i < t->num_dims; i++)
2303 {
2304 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2305 cur_file_ptr->int_type);
2306
2307 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2308 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2309 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2310 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2311 ? 0
2312 : (t->sizes[i] * 8) / t->dimensions[i]);
2313 };
2314
2315 /* NOTE: Mips documentation claims that the bitfield width goes here.
2316 But it needs to be emitted earlier. */
2317
2318 return ret;
2319 }
2320
2321 \f
2322 /* Add a tag to the tag table (unless it already exists). */
2323
2324 STATIC tag_t *
2325 get_tag (tag_start, tag_end_p1, indx, basic_type)
2326 const char *tag_start; /* 1st byte of tag name */
2327 const char *tag_end_p1; /* 1st byte after tag name */
2328 symint_t indx; /* index of tag start block */
2329 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2330 {
2331 shash_t *hash_ptr;
2332 tag_t *tag_ptr;
2333 hash_ptr = hash_string (tag_start,
2334 tag_end_p1 - tag_start,
2335 &tag_hash[0],
2336 (symint_t *) 0);
2337
2338 if (hash_ptr != (shash_t *) 0
2339 && hash_ptr->tag_ptr != (tag_t *) 0)
2340 {
2341 tag_ptr = hash_ptr->tag_ptr;
2342 if (indx != indexNil)
2343 {
2344 tag_ptr->basic_type = basic_type;
2345 tag_ptr->ifd = cur_file_ptr->file_index;
2346 tag_ptr->indx = indx;
2347 }
2348 return tag_ptr;
2349 }
2350
2351 (void) add_string (&tag_strings,
2352 &tag_hash[0],
2353 tag_start,
2354 tag_end_p1,
2355 &hash_ptr);
2356
2357 tag_ptr = allocate_tag ();
2358 tag_ptr->forward_ref = (forward_t *) 0;
2359 tag_ptr->hash_ptr = hash_ptr;
2360 tag_ptr->same_name = hash_ptr->tag_ptr;
2361 tag_ptr->basic_type = basic_type;
2362 tag_ptr->indx = indx;
2363 tag_ptr->ifd = (indx == indexNil
2364 ? (symint_t) -1 : cur_file_ptr->file_index);
2365 tag_ptr->same_block = cur_tag_head->first_tag;
2366
2367 cur_tag_head->first_tag = tag_ptr;
2368 hash_ptr->tag_ptr = tag_ptr;
2369
2370 return tag_ptr;
2371 }
2372
2373 \f
2374 /* Add an unknown {struct, union, enum} tag. */
2375
2376 STATIC void
2377 add_unknown_tag (ptag)
2378 tag_t *ptag; /* pointer to tag information */
2379 {
2380 shash_t *hash_ptr = ptag->hash_ptr;
2381 char *name_start = hash_ptr->string;
2382 char *name_end_p1 = name_start + hash_ptr->len;
2383 forward_t *f_next = ptag->forward_ref;
2384 forward_t *f_cur;
2385 int sym_index;
2386 int file_index = cur_file_ptr->file_index;
2387
2388 if (debug > 1)
2389 {
2390 const char *agg_type = "{unknown aggregate type}";
2391 switch (ptag->basic_type)
2392 {
2393 case bt_Struct: agg_type = "struct"; break;
2394 case bt_Union: agg_type = "union"; break;
2395 case bt_Enum: agg_type = "enum"; break;
2396 default: break;
2397 }
2398
2399 fprintf (stderr, "unknown %s %.*s found\n",
2400 agg_type, (int) hash_ptr->len, name_start);
2401 }
2402
2403 sym_index = add_local_symbol (name_start,
2404 name_end_p1,
2405 st_Block,
2406 sc_Info,
2407 (symint_t) 0,
2408 (symint_t) 0);
2409
2410 (void) add_local_symbol (name_start,
2411 name_end_p1,
2412 st_End,
2413 sc_Info,
2414 (symint_t) 0,
2415 (symint_t) 0);
2416
2417 while (f_next != (forward_t *) 0)
2418 {
2419 f_cur = f_next;
2420 f_next = f_next->next;
2421
2422 f_cur->ifd_ptr->isym = file_index;
2423 f_cur->index_ptr->rndx.index = sym_index;
2424
2425 free_forward (f_cur);
2426 }
2427
2428 return;
2429 }
2430
2431 \f
2432 /* Add a procedure to the current file's list of procedures, and record
2433 this is the current procedure. If the assembler created a PDR for
2434 this procedure, use that to initialize the current PDR. */
2435
2436 STATIC void
2437 add_procedure (func_start, func_end_p1)
2438 const char *func_start; /* 1st byte of func name */
2439 const char *func_end_p1; /* 1st byte after func name */
2440 {
2441 register PDR *new_proc_ptr;
2442 register efdr_t *file_ptr = cur_file_ptr;
2443 register varray_t *vp = &file_ptr->procs;
2444 register symint_t value = 0;
2445 register st_t proc_type = st_Proc;
2446 register shash_t *shash_ptr = hash_string (func_start,
2447 func_end_p1 - func_start,
2448 &orig_str_hash[0],
2449 (symint_t *) 0);
2450
2451 if (debug)
2452 fputc ('\n', stderr);
2453
2454 if (vp->objects_last_page == vp->objects_per_page)
2455 add_varray_page (vp);
2456
2457 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2458
2459 vp->num_allocated++;
2460
2461
2462 /* Did the assembler create this procedure? If so, get the PDR information. */
2463 cur_oproc_ptr = (PDR *) 0;
2464 if (shash_ptr != (shash_t *) 0)
2465 {
2466 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2467 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2468
2469 if (old_proc_ptr != (PDR *) 0
2470 && sym_ptr != (SYMR *) 0
2471 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2472 {
2473 cur_oproc_begin = sym_ptr;
2474 cur_oproc_end = shash_ptr->end_ptr;
2475 value = sym_ptr->value;
2476
2477 cur_oproc_ptr = old_proc_ptr;
2478 proc_type = (st_t)sym_ptr->st;
2479 *new_proc_ptr = *old_proc_ptr; /* initialize */
2480 }
2481 }
2482
2483 if (cur_oproc_ptr == (PDR *) 0)
2484 error ("Did not find a PDR block for %.*s",
2485 (int) (func_end_p1 - func_start), func_start);
2486
2487 /* Determine the start of symbols. */
2488 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2489
2490 /* Push the start of the function. */
2491 (void) add_local_symbol (func_start, func_end_p1,
2492 proc_type, sc_Text,
2493 value,
2494 (symint_t) 0);
2495 }
2496
2497 \f
2498 /* Add a new filename, and set up all of the file relative
2499 virtual arrays (strings, symbols, aux syms, etc.). Record
2500 where the current file structure lives. */
2501
2502 STATIC void
2503 add_file (file_start, file_end_p1)
2504 const char *file_start; /* first byte in string */
2505 const char *file_end_p1; /* first byte after string */
2506 {
2507 static char zero_bytes[2] = { '\0', '\0' };
2508
2509 register Ptrdiff_t len = file_end_p1 - file_start;
2510 register int first_ch = *file_start;
2511 register efdr_t *file_ptr;
2512
2513 if (debug)
2514 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2515
2516 /* See if the file has already been created. */
2517 for (file_ptr = first_file;
2518 file_ptr != (efdr_t *) 0;
2519 file_ptr = file_ptr->next_file)
2520 {
2521 if (first_ch == file_ptr->name[0]
2522 && file_ptr->name[len] == '\0'
2523 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2524 {
2525 cur_file_ptr = file_ptr;
2526 break;
2527 }
2528 }
2529
2530 /* If this is a new file, create it. */
2531 if (file_ptr == (efdr_t *) 0)
2532 {
2533 if (file_desc.objects_last_page == file_desc.objects_per_page)
2534 add_varray_page (&file_desc);
2535
2536 file_ptr = cur_file_ptr
2537 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2538 *file_ptr = init_file;
2539
2540 file_ptr->file_index = file_desc.num_allocated++;
2541
2542 /* Allocate the string hash table. */
2543 file_ptr->shash_head = (shash_t **) allocate_page ();
2544
2545 /* Make sure 0 byte in string table is null */
2546 add_string (&file_ptr->strings,
2547 &file_ptr->shash_head[0],
2548 &zero_bytes[0],
2549 &zero_bytes[0],
2550 (shash_t **) 0);
2551
2552 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2553 fatal ("Filename goes over one page boundary.");
2554
2555 /* Push the start of the filename. We assume that the filename
2556 will be stored at string offset 1. */
2557 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2558 (symint_t) 0, (symint_t) 0);
2559 file_ptr->fdr.rss = 1;
2560 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2561 file_ptr->name_len = file_end_p1 - file_start;
2562
2563 /* Update the linked list of file descriptors. */
2564 *last_file_ptr = file_ptr;
2565 last_file_ptr = &file_ptr->next_file;
2566
2567 /* Add void & int types to the file (void should be first to catch
2568 errant 0's within the index fields). */
2569 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2570 hash_yes,
2571 &cur_file_ptr->thash_head[0]);
2572
2573 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2574 hash_yes,
2575 &cur_file_ptr->thash_head[0]);
2576 }
2577 }
2578
2579 \f
2580 /* Add a stream of random bytes to a varray. */
2581
2582 STATIC void
2583 add_bytes (vp, input_ptr, nitems)
2584 varray_t *vp; /* virtual array to add too */
2585 char *input_ptr; /* start of the bytes */
2586 Size_t nitems; /* # items to move */
2587 {
2588 register Size_t move_items;
2589 register Size_t move_bytes;
2590 register char *ptr;
2591
2592 while (nitems > 0)
2593 {
2594 if (vp->objects_last_page >= vp->objects_per_page)
2595 add_varray_page (vp);
2596
2597 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2598 move_items = vp->objects_per_page - vp->objects_last_page;
2599 if (move_items > nitems)
2600 move_items = nitems;
2601
2602 move_bytes = move_items * vp->object_size;
2603 nitems -= move_items;
2604
2605 if (move_bytes >= 32)
2606 {
2607 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2608 input_ptr += move_bytes;
2609 }
2610 else
2611 {
2612 while (move_bytes-- > 0)
2613 *ptr++ = *input_ptr++;
2614 }
2615 }
2616 }
2617
2618 \f
2619 /* Convert storage class to string. */
2620
2621 STATIC const char *
2622 sc_to_string(storage_class)
2623 sc_t storage_class;
2624 {
2625 switch(storage_class)
2626 {
2627 case sc_Nil: return "Nil,";
2628 case sc_Text: return "Text,";
2629 case sc_Data: return "Data,";
2630 case sc_Bss: return "Bss,";
2631 case sc_Register: return "Register,";
2632 case sc_Abs: return "Abs,";
2633 case sc_Undefined: return "Undefined,";
2634 case sc_CdbLocal: return "CdbLocal,";
2635 case sc_Bits: return "Bits,";
2636 case sc_CdbSystem: return "CdbSystem,";
2637 case sc_RegImage: return "RegImage,";
2638 case sc_Info: return "Info,";
2639 case sc_UserStruct: return "UserStruct,";
2640 case sc_SData: return "SData,";
2641 case sc_SBss: return "SBss,";
2642 case sc_RData: return "RData,";
2643 case sc_Var: return "Var,";
2644 case sc_Common: return "Common,";
2645 case sc_SCommon: return "SCommon,";
2646 case sc_VarRegister: return "VarRegister,";
2647 case sc_Variant: return "Variant,";
2648 case sc_SUndefined: return "SUndefined,";
2649 case sc_Init: return "Init,";
2650 case sc_Max: return "Max,";
2651 }
2652
2653 return "???,";
2654 }
2655
2656 \f
2657 /* Convert symbol type to string. */
2658
2659 STATIC const char *
2660 st_to_string(symbol_type)
2661 st_t symbol_type;
2662 {
2663 switch(symbol_type)
2664 {
2665 case st_Nil: return "Nil,";
2666 case st_Global: return "Global,";
2667 case st_Static: return "Static,";
2668 case st_Param: return "Param,";
2669 case st_Local: return "Local,";
2670 case st_Label: return "Label,";
2671 case st_Proc: return "Proc,";
2672 case st_Block: return "Block,";
2673 case st_End: return "End,";
2674 case st_Member: return "Member,";
2675 case st_Typedef: return "Typedef,";
2676 case st_File: return "File,";
2677 case st_RegReloc: return "RegReloc,";
2678 case st_Forward: return "Forward,";
2679 case st_StaticProc: return "StaticProc,";
2680 case st_Constant: return "Constant,";
2681 case st_Str: return "String,";
2682 case st_Number: return "Number,";
2683 case st_Expr: return "Expr,";
2684 case st_Type: return "Type,";
2685 case st_Max: return "Max,";
2686 }
2687
2688 return "???,";
2689 }
2690
2691 \f
2692 /* Read a line from standard input, and return the start of the buffer
2693 (which is grows if the line is too big). We split lines at the
2694 semi-colon, and return each logical line independently. */
2695
2696 STATIC char *
2697 read_line __proto((void))
2698 {
2699 static int line_split_p = 0;
2700 register int string_p = 0;
2701 register int comment_p = 0;
2702 register int ch;
2703 register char *ptr;
2704
2705 if (cur_line_start == (char *) 0)
2706 { /* allocate initial page */
2707 cur_line_start = (char *) allocate_page ();
2708 cur_line_alloc = PAGE_SIZE;
2709 }
2710
2711 if (!line_split_p)
2712 line_number++;
2713
2714 line_split_p = 0;
2715 cur_line_nbytes = 0;
2716
2717 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2718 {
2719 if (++cur_line_nbytes >= cur_line_alloc-1)
2720 {
2721 register int num_pages = cur_line_alloc / PAGE_SIZE;
2722 register char *old_buffer = cur_line_start;
2723
2724 cur_line_alloc += PAGE_SIZE;
2725 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2726 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2727
2728 ptr = cur_line_start + cur_line_nbytes - 1;
2729 }
2730
2731 if (ch == '\n')
2732 {
2733 *ptr++ = '\n';
2734 *ptr = '\0';
2735 cur_line_ptr = cur_line_start;
2736 return cur_line_ptr;
2737 }
2738
2739 else if (ch == '\0')
2740 error ("Null character found in input");
2741
2742 else if (!comment_p)
2743 {
2744 if (ch == '"')
2745 string_p = !string_p;
2746
2747 else if (ch == '#')
2748 comment_p++;
2749
2750 else if (ch == ';' && !string_p)
2751 {
2752 line_split_p = 1;
2753 *ptr++ = '\n';
2754 *ptr = '\0';
2755 cur_line_ptr = cur_line_start;
2756 return cur_line_ptr;
2757 }
2758 }
2759 }
2760
2761 if (ferror (stdin))
2762 pfatal_with_name (input_name);
2763
2764 cur_line_ptr = (char *) 0;
2765 return (char *) 0;
2766 }
2767
2768 \f
2769 /* Parse #.begin directives which have a label as the first argument
2770 which gives the location of the start of the block. */
2771
2772 STATIC void
2773 parse_begin (start)
2774 const char *start; /* start of directive */
2775 {
2776 const char *end_p1; /* end of label */
2777 int ch;
2778 shash_t *hash_ptr; /* hash pointer to lookup label */
2779
2780 if (cur_file_ptr == (efdr_t *) 0)
2781 {
2782 error ("#.begin directive without a preceding .file directive");
2783 return;
2784 }
2785
2786 if (cur_proc_ptr == (PDR *) 0)
2787 {
2788 error ("#.begin directive without a preceding .ent directive");
2789 return;
2790 }
2791
2792 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2793 ;
2794
2795 hash_ptr = hash_string (start,
2796 end_p1 - start,
2797 &orig_str_hash[0],
2798 (symint_t *) 0);
2799
2800 if (hash_ptr == (shash_t *) 0)
2801 {
2802 error ("Label %.*s not found for #.begin",
2803 (int) (end_p1 - start), start);
2804 return;
2805 }
2806
2807 if (cur_oproc_begin == (SYMR *) 0)
2808 {
2809 error ("Procedure table %.*s not found for #.begin",
2810 (int) (end_p1 - start), start);
2811 return;
2812 }
2813
2814 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2815 st_Block, sc_Text,
2816 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2817 (symint_t) 0);
2818 }
2819
2820 \f
2821 /* Parse #.bend directives which have a label as the first argument
2822 which gives the location of the end of the block. */
2823
2824 STATIC void
2825 parse_bend (start)
2826 const char *start; /* start of directive */
2827 {
2828 const char *end_p1; /* end of label */
2829 int ch;
2830 shash_t *hash_ptr; /* hash pointer to lookup label */
2831
2832 if (cur_file_ptr == (efdr_t *) 0)
2833 {
2834 error ("#.begin directive without a preceding .file directive");
2835 return;
2836 }
2837
2838 if (cur_proc_ptr == (PDR *) 0)
2839 {
2840 error ("#.bend directive without a preceding .ent directive");
2841 return;
2842 }
2843
2844 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2845 ;
2846
2847 hash_ptr = hash_string (start,
2848 end_p1 - start,
2849 &orig_str_hash[0],
2850 (symint_t *) 0);
2851
2852 if (hash_ptr == (shash_t *) 0)
2853 {
2854 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2855 return;
2856 }
2857
2858 if (cur_oproc_begin == (SYMR *) 0)
2859 {
2860 error ("Procedure table %.*s not found for #.bend",
2861 (int) (end_p1 - start), start);
2862 return;
2863 }
2864
2865 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2866 st_End, sc_Text,
2867 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2868 (symint_t) 0);
2869 }
2870
2871 \f
2872 /* Parse #.def directives, which are contain standard COFF subdirectives
2873 to describe the debugging format. These subdirectives include:
2874
2875 .scl specify storage class
2876 .val specify a value
2877 .endef specify end of COFF directives
2878 .type specify the type
2879 .size specify the size of an array
2880 .dim specify an array dimension
2881 .tag specify a tag for a struct, union, or enum. */
2882
2883 STATIC void
2884 parse_def (name_start)
2885 const char *name_start; /* start of directive */
2886 {
2887 const char *dir_start; /* start of current directive*/
2888 const char *dir_end_p1; /* end+1 of current directive*/
2889 const char *arg_start; /* start of current argument */
2890 const char *arg_end_p1; /* end+1 of current argument */
2891 const char *name_end_p1; /* end+1 of label */
2892 const char *tag_start = (const char *) 0; /* start of tag name */
2893 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2894 sc_t storage_class = sc_Nil;
2895 st_t symbol_type = st_Nil;
2896 type_info_t t;
2897 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2898 int is_function = 0; /* != 0 if function */
2899 symint_t value = 0;
2900 symint_t indx = cur_file_ptr->void_type;
2901 int error_line = 0;
2902 symint_t arg_number;
2903 symint_t temp_array[ N_TQ ];
2904 int arg_was_number;
2905 int ch, i;
2906 Ptrdiff_t len;
2907
2908 static int inside_enumeration = 0; /* is this an enumeration? */
2909
2910
2911 /* Initialize the type information. */
2912 t = type_info_init;
2913
2914
2915 /* Search for the end of the name being defined. */
2916 /* Allow spaces and such in names for G++ templates, which produce stabs
2917 that look like:
2918
2919 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2920
2921 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2922 ;
2923
2924 if (ch == '\0')
2925 {
2926 error_line = __LINE__;
2927 saber_stop ();
2928 goto bomb_out;
2929 }
2930
2931 /* Parse the remaining subdirectives now. */
2932 dir_start = name_end_p1+1;
2933 for (;;)
2934 {
2935 while ((ch = *dir_start) == ' ' || ch == '\t')
2936 ++dir_start;
2937
2938 if (ch != '.')
2939 {
2940 error_line = __LINE__;
2941 saber_stop ();
2942 goto bomb_out;
2943 }
2944
2945 /* Are we done? */
2946 if (dir_start[1] == 'e'
2947 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2948 break;
2949
2950 /* Pick up the subdirective now */
2951 for (dir_end_p1 = dir_start+1;
2952 (ch = *dir_end_p1) != ' ' && ch != '\t';
2953 dir_end_p1++)
2954 {
2955 if (ch == '\0' || ISSPACE (ch))
2956 {
2957 error_line = __LINE__;
2958 saber_stop ();
2959 goto bomb_out;
2960 }
2961 }
2962
2963 /* Pick up the subdirective argument now. */
2964 arg_was_number = arg_number = 0;
2965 arg_end_p1 = (const char *) 0;
2966 arg_start = dir_end_p1+1;
2967 ch = *arg_start;
2968 while (ch == ' ' || ch == '\t')
2969 ch = *++arg_start;
2970
2971 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2972 {
2973 int ch2;
2974 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2975 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2976 arg_was_number++;
2977 }
2978
2979 else if (ch == '\0' || ISSPACE (ch))
2980 {
2981 error_line = __LINE__;
2982 saber_stop ();
2983 goto bomb_out;
2984 }
2985
2986 if (!arg_was_number)
2987 {
2988 /* Allow spaces and such in names for G++ templates. */
2989 for (arg_end_p1 = arg_start+1;
2990 (ch = *arg_end_p1) != ';' && ch != '\0';
2991 arg_end_p1++)
2992 ;
2993
2994 if (ch == '\0')
2995 {
2996 error_line = __LINE__;
2997 saber_stop ();
2998 goto bomb_out;
2999 }
3000 }
3001
3002 /* Classify the directives now. */
3003 len = dir_end_p1 - dir_start;
3004 switch (dir_start[1])
3005 {
3006 default:
3007 error_line = __LINE__;
3008 saber_stop ();
3009 goto bomb_out;
3010
3011 case 'd':
3012 if (len == sizeof (".dim")-1
3013 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3014 && arg_was_number)
3015 {
3016 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3017
3018 *t_ptr = arg_number;
3019 while (*arg_end_p1 == ',' && arg_was_number)
3020 {
3021 arg_start = arg_end_p1+1;
3022 ch = *arg_start;
3023 while (ch == ' ' || ch == '\t')
3024 ch = *++arg_start;
3025
3026 arg_was_number = 0;
3027 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3028 {
3029 int ch2;
3030 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3031 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3032 arg_was_number++;
3033
3034 if (t_ptr == &temp_array[0])
3035 {
3036 error_line = __LINE__;
3037 saber_stop ();
3038 goto bomb_out;
3039 }
3040
3041 *--t_ptr = arg_number;
3042 }
3043 }
3044
3045 /* Reverse order of dimensions. */
3046 while (t_ptr <= &temp_array[ N_TQ-1 ])
3047 {
3048 if (t.num_dims >= N_TQ-1)
3049 {
3050 error_line = __LINE__;
3051 saber_stop ();
3052 goto bomb_out;
3053 }
3054
3055 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3056 }
3057 break;
3058 }
3059 else
3060 {
3061 error_line = __LINE__;
3062 saber_stop ();
3063 goto bomb_out;
3064 }
3065
3066
3067 case 's':
3068 if (len == sizeof (".scl")-1
3069 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3070 && arg_was_number
3071 && arg_number < ((symint_t) C_MAX))
3072 {
3073 /* If the symbol is a static or external, we have
3074 already gotten the appropriate type and class, so
3075 make sure we don't override those values. This is
3076 needed because there are some type and classes that
3077 are not in COFF, such as short data, etc. */
3078 if (symbol_type == st_Nil)
3079 {
3080 symbol_type = map_coff_sym_type[arg_number];
3081 storage_class = map_coff_storage [arg_number];
3082 }
3083 break;
3084 }
3085
3086 else if (len == sizeof (".size")-1
3087 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3088 && arg_was_number)
3089 {
3090 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3091
3092 *t_ptr = arg_number;
3093 while (*arg_end_p1 == ',' && arg_was_number)
3094 {
3095 arg_start = arg_end_p1+1;
3096 ch = *arg_start;
3097 while (ch == ' ' || ch == '\t')
3098 ch = *++arg_start;
3099
3100 arg_was_number = 0;
3101 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3102 {
3103 int ch2;
3104 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3105 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3106 arg_was_number++;
3107
3108 if (t_ptr == &temp_array[0])
3109 {
3110 error_line = __LINE__;
3111 saber_stop ();
3112 goto bomb_out;
3113 }
3114
3115 *--t_ptr = arg_number;
3116 }
3117 }
3118
3119 /* Reverse order of sizes. */
3120 while (t_ptr <= &temp_array[ N_TQ-1 ])
3121 {
3122 if (t.num_sizes >= N_TQ-1)
3123 {
3124 error_line = __LINE__;
3125 saber_stop ();
3126 goto bomb_out;
3127 }
3128
3129 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3130 }
3131 break;
3132 }
3133
3134 else
3135 {
3136 error_line = __LINE__;
3137 saber_stop ();
3138 goto bomb_out;
3139 }
3140
3141
3142 case 't':
3143 if (len == sizeof (".type")-1
3144 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3145 && arg_was_number)
3146 {
3147 tq_t *tq_ptr = &t.type_qualifiers[0];
3148
3149 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3150 t.basic_type = map_coff_types [(int)t.orig_type];
3151 for (i = N_TQ-1; i >= 0; i--)
3152 {
3153 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3154 & N_TMASK);
3155
3156 if (dt != (int)DT_NON)
3157 *tq_ptr++ = map_coff_derived_type [dt];
3158 }
3159
3160 /* If this is a function, ignore it, so that we don't get
3161 two entries (one from the .ent, and one for the .def
3162 that precedes it). Save the type information so that
3163 the end block can properly add it after the begin block
3164 index. For MIPS knows what reason, we must strip off
3165 the function type at this point. */
3166 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3167 {
3168 is_function = 1;
3169 tq_ptr[-1] = tq_Nil;
3170 }
3171
3172 break;
3173 }
3174
3175 else if (len == sizeof (".tag")-1
3176 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3177 {
3178 tag_start = arg_start;
3179 tag_end_p1 = arg_end_p1;
3180 break;
3181 }
3182
3183 else
3184 {
3185 error_line = __LINE__;
3186 saber_stop ();
3187 goto bomb_out;
3188 }
3189
3190
3191 case 'v':
3192 if (len == sizeof (".val")-1
3193 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3194 {
3195 if (arg_was_number)
3196 value = arg_number;
3197
3198 /* If the value is not an integer value, it must be the
3199 name of a static or global item. Look up the name in
3200 the original symbol table to pick up the storage
3201 class, symbol type, etc. */
3202 else
3203 {
3204 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3205 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3206
3207 ext_hash_ptr = hash_string (arg_start,
3208 arg_end_p1 - arg_start,
3209 &ext_str_hash[0],
3210 (symint_t *) 0);
3211
3212 if (ext_hash_ptr != (shash_t *) 0
3213 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3214 eptr = ext_hash_ptr->esym_ptr;
3215
3216 orig_hash_ptr = hash_string (arg_start,
3217 arg_end_p1 - arg_start,
3218 &orig_str_hash[0],
3219 (symint_t *) 0);
3220
3221 if ((orig_hash_ptr == (shash_t *) 0
3222 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3223 && eptr == (EXTR *) 0)
3224 {
3225 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3226 (int) (arg_end_p1 - arg_start),
3227 arg_start);
3228 value = 0;
3229 }
3230 else
3231 {
3232 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3233 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3234 ? orig_hash_ptr->sym_ptr
3235 : &eptr->asym;
3236
3237 symbol_type = (st_t) ptr->st;
3238 storage_class = (sc_t) ptr->sc;
3239 value = ptr->value;
3240 }
3241 }
3242 break;
3243 }
3244 else
3245 {
3246 error_line = __LINE__;
3247 saber_stop ();
3248 goto bomb_out;
3249 }
3250 }
3251
3252 /* Set up to find next directive. */
3253 dir_start = arg_end_p1 + 1;
3254 }
3255
3256
3257 if (storage_class == sc_Bits)
3258 {
3259 t.bitfield = 1;
3260 t.extra_sizes = 1;
3261 }
3262 else
3263 t.extra_sizes = 0;
3264
3265 if (t.num_dims > 0)
3266 {
3267 int num_real_sizes = t.num_sizes - t.extra_sizes;
3268 int diff = t.num_dims - num_real_sizes;
3269 int i = t.num_dims - 1;
3270 int j;
3271
3272 if (num_real_sizes != 1 || diff < 0)
3273 {
3274 error_line = __LINE__;
3275 saber_stop ();
3276 goto bomb_out;
3277 }
3278
3279 /* If this is an array, make sure the same number of dimensions
3280 and sizes were passed, creating extra sizes for multiply
3281 dimensioned arrays if not passed. */
3282
3283 if (diff)
3284 {
3285 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3286 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3287
3288 t.num_sizes = i + 1;
3289 for ( i--; i >= 0; i-- )
3290 {
3291 if (t.dimensions[ i+1 ])
3292 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3293 else
3294 t.sizes[ i ] = t.sizes[ i+1 ];
3295 }
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 (int) (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 ((unsigned char)*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",
3508 (int) (end_func_p1 - start_func), start_func);
3509
3510 (void) add_local_symbol (start_func, end_func_p1,
3511 st_End, sc_Text,
3512 value,
3513 (symint_t) 0);
3514
3515 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3516 }
3517
3518 \f
3519 /* Parse .ent directives. */
3520
3521 STATIC void
3522 parse_ent (start)
3523 const char *start; /* start of directive */
3524 {
3525 register const char *start_func, *end_func_p1;
3526 register int ch;
3527
3528 if (cur_file_ptr == (efdr_t *) 0)
3529 {
3530 error (".ent directive without a preceding .file directive");
3531 return;
3532 }
3533
3534 if (cur_proc_ptr != (PDR *) 0)
3535 {
3536 error ("second .ent directive found before .end directive");
3537 return;
3538 }
3539
3540 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3541 ;
3542
3543 ch = *start_func;
3544 if (!IS_ASM_IDENT (ch))
3545 {
3546 error (".ent directive has no name");
3547 return;
3548 }
3549
3550 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3551 ;
3552
3553 (void) add_procedure (start_func, end_func_p1);
3554 }
3555
3556 \f
3557 /* Parse .file directives. */
3558
3559 STATIC void
3560 parse_file (start)
3561 const char *start; /* start of directive */
3562 {
3563 char *p;
3564 register char *start_name, *end_name_p1;
3565
3566 (void) strtol (start, &p, 0);
3567 if (start == p
3568 || (start_name = local_index (p, '"')) == (char *) 0
3569 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3570 {
3571 error ("Invalid .file directive");
3572 return;
3573 }
3574
3575 if (cur_proc_ptr != (PDR *) 0)
3576 {
3577 error ("No way to handle .file within .ent/.end section");
3578 return;
3579 }
3580
3581 add_file (start_name, end_name_p1);
3582 }
3583
3584 \f
3585 /* Make sure the @stabs symbol is emitted. */
3586
3587 static void
3588 mark_stabs (start)
3589 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3590 {
3591 if (!stabs_seen)
3592 {
3593 /* Add a dummy @stabs symbol. */
3594 stabs_seen = 1;
3595 (void) add_local_symbol (stabs_symbol,
3596 stabs_symbol + sizeof (stabs_symbol),
3597 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3598
3599 }
3600 }
3601
3602 \f
3603 /* Parse .stabs directives.
3604
3605 .stabs directives have five fields:
3606 "string" a string, encoding the type information.
3607 code a numeric code, defined in <stab.h>
3608 0 a zero
3609 0 a zero or line number
3610 value a numeric value or an address.
3611
3612 If the value is relocatable, we transform this into:
3613 iss points as an index into string space
3614 value value from lookup of the name
3615 st st from lookup of the name
3616 sc sc from lookup of the name
3617 index code|CODE_MASK
3618
3619 If the value is not relocatable, we transform this into:
3620 iss points as an index into string space
3621 value value
3622 st st_Nil
3623 sc sc_Nil
3624 index code|CODE_MASK
3625
3626 .stabn directives have four fields (string is null):
3627 code a numeric code, defined in <stab.h>
3628 0 a zero
3629 0 a zero or a line number
3630 value a numeric value or an address. */
3631
3632 STATIC void
3633 parse_stabs_common (string_start, string_end, rest)
3634 const char *string_start; /* start of string or NULL */
3635 const char *string_end; /* end+1 of string or NULL */
3636 const char *rest; /* rest of the directive. */
3637 {
3638 efdr_t *save_file_ptr = cur_file_ptr;
3639 symint_t code;
3640 symint_t value;
3641 char *p;
3642 st_t st;
3643 sc_t sc;
3644 int ch;
3645
3646 if (stabs_seen == 0)
3647 mark_stabs ("");
3648
3649 /* Read code from stabs. */
3650 if (!ISDIGIT (*rest))
3651 {
3652 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3653 return;
3654 }
3655
3656 code = strtol (rest, &p, 0);
3657
3658 /* Line number stabs are handled differently, since they have two values,
3659 the line number and the address of the label. We use the index field
3660 (aka code) to hold the line number, and the value field to hold the
3661 address. The symbol type is st_Label, which should be different from
3662 the other stabs, so that gdb can recognize it. */
3663
3664 if (code == (int)N_SLINE)
3665 {
3666 SYMR *sym_ptr, dummy_symr;
3667 shash_t *shash_ptr;
3668
3669 /* Skip ,0, */
3670 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3671 {
3672 error ("Invalid line number .stabs/.stabn directive");
3673 return;
3674 }
3675
3676 code = strtol (p+3, &p, 0);
3677 ch = *++p;
3678 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3679 {
3680 error ("Invalid line number .stabs/.stabn directive");
3681 return;
3682 }
3683
3684 dummy_symr.index = code;
3685 if (dummy_symr.index != code)
3686 {
3687 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3688 code);
3689
3690 return;
3691 }
3692
3693 shash_ptr = hash_string (p,
3694 strlen (p) - 1,
3695 &orig_str_hash[0],
3696 (symint_t *) 0);
3697
3698 if (shash_ptr == (shash_t *) 0
3699 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3700 {
3701 error ("Invalid .stabs/.stabn directive, value not found");
3702 return;
3703 }
3704
3705 if ((st_t) sym_ptr->st != st_Label)
3706 {
3707 error ("Invalid line number .stabs/.stabn directive");
3708 return;
3709 }
3710
3711 st = st_Label;
3712 sc = (sc_t) sym_ptr->sc;
3713 value = sym_ptr->value;
3714 }
3715 else
3716 {
3717 /* Skip ,<num>,<num>, */
3718 if (*p++ != ',')
3719 goto failure;
3720 for (; ISDIGIT (*p); p++)
3721 ;
3722 if (*p++ != ',')
3723 goto failure;
3724 for (; ISDIGIT (*p); p++)
3725 ;
3726 if (*p++ != ',')
3727 goto failure;
3728 ch = *p;
3729 if (!IS_ASM_IDENT (ch) && ch != '-')
3730 {
3731 failure:
3732 error ("Invalid .stabs/.stabn directive, bad character");
3733 return;
3734 }
3735
3736 if (ISDIGIT (ch) || ch == '-')
3737 {
3738 st = st_Nil;
3739 sc = sc_Nil;
3740 value = strtol (p, &p, 0);
3741 if (*p != '\n')
3742 {
3743 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3744 return;
3745 }
3746 }
3747 else if (!IS_ASM_IDENT (ch))
3748 {
3749 error ("Invalid .stabs/.stabn directive, bad character");
3750 return;
3751 }
3752 else
3753 {
3754 SYMR *sym_ptr;
3755 shash_t *shash_ptr;
3756 const char *start, *end_p1;
3757
3758 start = p;
3759 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3760 {
3761 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3762 end_p1 = start + strlen(start) - 1;
3763 }
3764
3765 shash_ptr = hash_string (start,
3766 end_p1 - start,
3767 &orig_str_hash[0],
3768 (symint_t *) 0);
3769
3770 if (shash_ptr == (shash_t *) 0
3771 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3772 {
3773 shash_ptr = hash_string (start,
3774 end_p1 - start,
3775 &ext_str_hash[0],
3776 (symint_t *) 0);
3777
3778 if (shash_ptr == (shash_t *) 0
3779 || shash_ptr->esym_ptr == (EXTR *) 0)
3780 {
3781 error ("Invalid .stabs/.stabn directive, value not found");
3782 return;
3783 }
3784 else
3785 sym_ptr = &(shash_ptr->esym_ptr->asym);
3786 }
3787
3788 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3789 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3790 {
3791 sc = scNil;
3792 st = stNil;
3793 }
3794 else
3795 {
3796 sc = (sc_t) sym_ptr->sc;
3797 st = (st_t) sym_ptr->st;
3798 }
3799 value = sym_ptr->value;
3800
3801 ch = *end_p1++;
3802 if (ch != '\n')
3803 {
3804 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3805 || ((ch != '+') && (ch != '-')))
3806 {
3807 error ("Invalid .stabs/.stabn directive, badly formed value");
3808 return;
3809 }
3810 if (ch == '+')
3811 value += strtol (end_p1, &p, 0);
3812 else if (ch == '-')
3813 value -= strtol (end_p1, &p, 0);
3814
3815 if (*p != '\n')
3816 {
3817 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3818 return;
3819 }
3820 }
3821 }
3822 code = MIPS_MARK_STAB(code);
3823 }
3824
3825 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3826 /* Restore normal file type. */
3827 cur_file_ptr = save_file_ptr;
3828 }
3829
3830
3831 STATIC void
3832 parse_stabs (start)
3833 const char *start; /* start of directive */
3834 {
3835 const char *end = local_index (start+1, '"');
3836
3837 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3838 {
3839 error ("Invalid .stabs directive, no string");
3840 return;
3841 }
3842
3843 parse_stabs_common (start+1, end, end+2);
3844 }
3845
3846
3847 STATIC void
3848 parse_stabn (start)
3849 const char *start; /* start of directive */
3850 {
3851 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3852 }
3853
3854 \f
3855 /* Parse the input file, and write the lines to the output file
3856 if needed. */
3857
3858 STATIC void
3859 parse_input __proto((void))
3860 {
3861 register char *p;
3862 register Size_t i;
3863 register thead_t *ptag_head;
3864 register tag_t *ptag;
3865 register tag_t *ptag_next;
3866
3867 if (debug)
3868 fprintf (stderr, "\tinput\n");
3869
3870 /* Add a dummy scope block around the entire compilation unit for
3871 structures defined outside of blocks. */
3872 ptag_head = allocate_thead ();
3873 ptag_head->first_tag = 0;
3874 ptag_head->prev = cur_tag_head;
3875 cur_tag_head = ptag_head;
3876
3877 while ((p = read_line ()) != (char *) 0)
3878 {
3879 /* Skip leading blanks */
3880 while (ISSPACE ((unsigned char)*p))
3881 p++;
3882
3883 /* See if it's a directive we handle. If so, dispatch handler. */
3884 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3885 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3886 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3887 {
3888 p += pseudo_ops[i].len; /* skip to first argument */
3889 while (ISSPACE ((unsigned char)*p))
3890 p++;
3891
3892 (*pseudo_ops[i].func)( p );
3893 break;
3894 }
3895 }
3896
3897 /* Process any tags at global level. */
3898 ptag_head = cur_tag_head;
3899 cur_tag_head = ptag_head->prev;
3900
3901 for (ptag = ptag_head->first_tag;
3902 ptag != (tag_t *) 0;
3903 ptag = ptag_next)
3904 {
3905 if (ptag->forward_ref != (forward_t *) 0)
3906 add_unknown_tag (ptag);
3907
3908 ptag_next = ptag->same_block;
3909 ptag->hash_ptr->tag_ptr = ptag->same_name;
3910 free_tag (ptag);
3911 }
3912
3913 free_thead (ptag_head);
3914
3915 }
3916
3917 \f
3918 /* Update the global headers with the final offsets in preparation
3919 to write out the .T file. */
3920
3921 STATIC void
3922 update_headers __proto((void))
3923 {
3924 register symint_t i;
3925 register efdr_t *file_ptr;
3926
3927 /* Set up the symbolic header. */
3928 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3929 symbolic_header.magic = orig_sym_hdr.magic;
3930 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3931
3932 /* Set up global counts. */
3933 symbolic_header.issExtMax = ext_strings.num_allocated;
3934 symbolic_header.idnMax = dense_num.num_allocated;
3935 symbolic_header.ifdMax = file_desc.num_allocated;
3936 symbolic_header.iextMax = ext_symbols.num_allocated;
3937 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3938 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3939 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3940 symbolic_header.crfd = orig_sym_hdr.crfd;
3941
3942
3943 /* Loop through each file, figuring out how many local syms,
3944 line numbers, etc. there are. Also, put out end symbol
3945 for the filename. */
3946
3947 for (file_ptr = first_file;
3948 file_ptr != (efdr_t *) 0;
3949 file_ptr = file_ptr->next_file)
3950 {
3951 register SYMR *sym_start;
3952 register SYMR *sym;
3953 register SYMR *sym_end_p1;
3954 register FDR *fd_ptr = file_ptr->orig_fdr;
3955
3956 cur_file_ptr = file_ptr;
3957
3958 /* Copy st_Static symbols from the original local symbol table if
3959 they did not get added to the new local symbol table.
3960 This happens with stabs-in-ecoff or if the source file is
3961 compiled without debugging. */
3962 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3963 sym_end_p1 = sym_start + fd_ptr->csym;
3964 for (sym = sym_start; sym < sym_end_p1; sym++)
3965 {
3966 if ((st_t)sym->st == st_Static)
3967 {
3968 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3969 register Size_t len = strlen (str);
3970 register shash_t *hash_ptr;
3971
3972 /* Ignore internal labels. */
3973 if (str[0] == '$' && str[1] == 'L')
3974 continue;
3975 hash_ptr = hash_string (str,
3976 (Ptrdiff_t)len,
3977 &file_ptr->shash_head[0],
3978 (symint_t *) 0);
3979 if (hash_ptr == (shash_t *) 0)
3980 {
3981 (void) add_local_symbol (str, str + len,
3982 (st_t)sym->st, (sc_t)sym->sc,
3983 (symint_t)sym->value,
3984 (symint_t)indexNil);
3985 }
3986 }
3987 }
3988 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3989 st_End, sc_Text,
3990 (symint_t) 0,
3991 (symint_t) 0);
3992
3993 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3994 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3995 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3996
3997 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3998 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3999 symbolic_header.isymMax += file_ptr->fdr.csym;
4000
4001 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4002 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4003 symbolic_header.iauxMax += file_ptr->fdr.caux;
4004
4005 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4006 file_ptr->fdr.issBase = symbolic_header.issMax;
4007 symbolic_header.issMax += file_ptr->fdr.cbSs;
4008 }
4009
4010 #ifndef ALIGN_SYMTABLE_OFFSET
4011 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4012 #endif
4013
4014 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4015 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4016 if (i > 0)
4017 {
4018 symbolic_header.cbLineOffset = file_offset;
4019 file_offset += i;
4020 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4021 }
4022
4023 i = symbolic_header.ioptMax; /* optimization symbols */
4024 if (((long) i) > 0)
4025 {
4026 symbolic_header.cbOptOffset = file_offset;
4027 file_offset += i * sizeof (OPTR);
4028 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4029 }
4030
4031 i = symbolic_header.idnMax; /* dense numbers */
4032 if (i > 0)
4033 {
4034 symbolic_header.cbDnOffset = file_offset;
4035 file_offset += i * sizeof (DNR);
4036 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4037 }
4038
4039 i = symbolic_header.ipdMax; /* procedure tables */
4040 if (i > 0)
4041 {
4042 symbolic_header.cbPdOffset = file_offset;
4043 file_offset += i * sizeof (PDR);
4044 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4045 }
4046
4047 i = symbolic_header.isymMax; /* local symbols */
4048 if (i > 0)
4049 {
4050 symbolic_header.cbSymOffset = file_offset;
4051 file_offset += i * sizeof (SYMR);
4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4053 }
4054
4055 i = symbolic_header.iauxMax; /* aux syms. */
4056 if (i > 0)
4057 {
4058 symbolic_header.cbAuxOffset = file_offset;
4059 file_offset += i * sizeof (TIR);
4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4061 }
4062
4063 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4064 if (i > 0)
4065 {
4066 symbolic_header.cbSsOffset = file_offset;
4067 file_offset += i;
4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4069 }
4070
4071 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4072 if (i > 0)
4073 {
4074 symbolic_header.cbSsExtOffset = file_offset;
4075 file_offset += i;
4076 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4077 }
4078
4079 i = symbolic_header.ifdMax; /* file tables */
4080 if (i > 0)
4081 {
4082 symbolic_header.cbFdOffset = file_offset;
4083 file_offset += i * sizeof (FDR);
4084 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4085 }
4086
4087 i = symbolic_header.crfd; /* relative file descriptors */
4088 if (i > 0)
4089 {
4090 symbolic_header.cbRfdOffset = file_offset;
4091 file_offset += i * sizeof (symint_t);
4092 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4093 }
4094
4095 i = symbolic_header.iextMax; /* external symbols */
4096 if (i > 0)
4097 {
4098 symbolic_header.cbExtOffset = file_offset;
4099 file_offset += i * sizeof (EXTR);
4100 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4101 }
4102 }
4103
4104 \f
4105 /* Write out a varray at a given location. */
4106
4107 STATIC void
4108 write_varray (vp, offset, str)
4109 varray_t *vp; /* virtual array */
4110 off_t offset; /* offset to write varray to */
4111 const char *str; /* string to print out when tracing */
4112 {
4113 int num_write, sys_write;
4114 vlinks_t *ptr;
4115
4116 if (vp->num_allocated == 0)
4117 return;
4118
4119 if (debug)
4120 {
4121 fputs ("\twarray\tvp = ", stderr);
4122 fprintf (stderr, HOST_PTR_PRINTF, vp);
4123 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4124 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4125 }
4126
4127 if (file_offset != offset
4128 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4129 pfatal_with_name (object_name);
4130
4131 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4132 {
4133 num_write = (ptr->next == (vlinks_t *) 0)
4134 ? vp->objects_last_page * vp->object_size
4135 : vp->objects_per_page * vp->object_size;
4136
4137 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4138 if (sys_write <= 0)
4139 pfatal_with_name (object_name);
4140
4141 else if (sys_write != num_write)
4142 fatal ("Wrote %d bytes to %s, system returned %d",
4143 num_write,
4144 object_name,
4145 sys_write);
4146
4147 file_offset += num_write;
4148 }
4149 }
4150
4151 \f
4152 /* Write out the symbol table in the object file. */
4153
4154 STATIC void
4155 write_object __proto((void))
4156 {
4157 int sys_write;
4158 efdr_t *file_ptr;
4159 off_t offset;
4160
4161 if (debug)
4162 {
4163 fputs ("\n\twrite\tvp = ", stderr);
4164 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4165 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4166 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4167 }
4168
4169 sys_write = fwrite ((PTR_T) &symbolic_header,
4170 1,
4171 sizeof (symbolic_header),
4172 object_stream);
4173
4174 if (sys_write < 0)
4175 pfatal_with_name (object_name);
4176
4177 else if (sys_write != sizeof (symbolic_header))
4178 fatal ("Wrote %d bytes to %s, system returned %d",
4179 (int) sizeof (symbolic_header),
4180 object_name,
4181 sys_write);
4182
4183
4184 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4185
4186 if (symbolic_header.cbLine > 0) /* line numbers */
4187 {
4188 long sys_write;
4189
4190 if (file_offset != symbolic_header.cbLineOffset
4191 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4192 pfatal_with_name (object_name);
4193
4194 if (debug)
4195 {
4196 fputs ("\twrite\tvp = ", stderr);
4197 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4198 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4199 (long) symbolic_header.cbLineOffset,
4200 (long) symbolic_header.cbLine, "Line numbers");
4201 }
4202
4203 sys_write = fwrite ((PTR_T) orig_linenum,
4204 1,
4205 symbolic_header.cbLine,
4206 object_stream);
4207
4208 if (sys_write <= 0)
4209 pfatal_with_name (object_name);
4210
4211 else if (sys_write != symbolic_header.cbLine)
4212 fatal ("Wrote %ld bytes to %s, system returned %ld",
4213 (long) symbolic_header.cbLine,
4214 object_name,
4215 sys_write);
4216
4217 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4218 }
4219
4220 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4221 {
4222 long sys_write;
4223 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4224
4225 if (file_offset != symbolic_header.cbOptOffset
4226 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4227 pfatal_with_name (object_name);
4228
4229 if (debug)
4230 {
4231 fputs ("\twrite\tvp = ", stderr);
4232 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4233 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4234 (long) symbolic_header.cbOptOffset,
4235 num_write, "Optimizer symbols");
4236 }
4237
4238 sys_write = fwrite ((PTR_T) orig_opt_syms,
4239 1,
4240 num_write,
4241 object_stream);
4242
4243 if (sys_write <= 0)
4244 pfatal_with_name (object_name);
4245
4246 else if (sys_write != num_write)
4247 fatal ("Wrote %ld bytes to %s, system returned %ld",
4248 num_write,
4249 object_name,
4250 sys_write);
4251
4252 file_offset = symbolic_header.cbOptOffset + num_write;
4253 }
4254
4255 if (symbolic_header.idnMax > 0) /* dense numbers */
4256 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4257
4258 if (symbolic_header.ipdMax > 0) /* procedure tables */
4259 {
4260 offset = symbolic_header.cbPdOffset;
4261 for (file_ptr = first_file;
4262 file_ptr != (efdr_t *) 0;
4263 file_ptr = file_ptr->next_file)
4264 {
4265 write_varray (&file_ptr->procs, offset, "Procedure tables");
4266 offset = file_offset;
4267 }
4268 }
4269
4270 if (symbolic_header.isymMax > 0) /* local symbols */
4271 {
4272 offset = symbolic_header.cbSymOffset;
4273 for (file_ptr = first_file;
4274 file_ptr != (efdr_t *) 0;
4275 file_ptr = file_ptr->next_file)
4276 {
4277 write_varray (&file_ptr->symbols, offset, "Local symbols");
4278 offset = file_offset;
4279 }
4280 }
4281
4282 if (symbolic_header.iauxMax > 0) /* aux symbols */
4283 {
4284 offset = symbolic_header.cbAuxOffset;
4285 for (file_ptr = first_file;
4286 file_ptr != (efdr_t *) 0;
4287 file_ptr = file_ptr->next_file)
4288 {
4289 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4290 offset = file_offset;
4291 }
4292 }
4293
4294 if (symbolic_header.issMax > 0) /* local strings */
4295 {
4296 offset = symbolic_header.cbSsOffset;
4297 for (file_ptr = first_file;
4298 file_ptr != (efdr_t *) 0;
4299 file_ptr = file_ptr->next_file)
4300 {
4301 write_varray (&file_ptr->strings, offset, "Local strings");
4302 offset = file_offset;
4303 }
4304 }
4305
4306 if (symbolic_header.issExtMax > 0) /* external strings */
4307 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4308
4309 if (symbolic_header.ifdMax > 0) /* file tables */
4310 {
4311 offset = symbolic_header.cbFdOffset;
4312 if (file_offset != offset
4313 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4314 pfatal_with_name (object_name);
4315
4316 file_offset = offset;
4317 for (file_ptr = first_file;
4318 file_ptr != (efdr_t *) 0;
4319 file_ptr = file_ptr->next_file)
4320 {
4321 if (debug)
4322 {
4323 fputs ("\twrite\tvp = ", stderr);
4324 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4325 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4326 file_offset, (unsigned long) sizeof (FDR),
4327 "File header");
4328 }
4329
4330 sys_write = fwrite (&file_ptr->fdr,
4331 1,
4332 sizeof (FDR),
4333 object_stream);
4334
4335 if (sys_write < 0)
4336 pfatal_with_name (object_name);
4337
4338 else if (sys_write != sizeof (FDR))
4339 fatal ("Wrote %d bytes to %s, system returned %d",
4340 (int) sizeof (FDR),
4341 object_name,
4342 sys_write);
4343
4344 file_offset = offset += sizeof (FDR);
4345 }
4346 }
4347
4348 if (symbolic_header.crfd > 0) /* relative file descriptors */
4349 {
4350 long sys_write;
4351 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4352
4353 if (file_offset != symbolic_header.cbRfdOffset
4354 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4355 pfatal_with_name (object_name);
4356
4357 if (debug)
4358 {
4359 fputs ("\twrite\tvp = ", stderr);
4360 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4361 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4362 (long) symbolic_header.cbRfdOffset,
4363 num_write, "Relative file descriptors");
4364 }
4365
4366 sys_write = fwrite (orig_rfds,
4367 1,
4368 num_write,
4369 object_stream);
4370
4371 if (sys_write <= 0)
4372 pfatal_with_name (object_name);
4373
4374 else if (sys_write != (long)num_write)
4375 fatal ("Wrote %lu bytes to %s, system returned %ld",
4376 num_write,
4377 object_name,
4378 sys_write);
4379
4380 file_offset = symbolic_header.cbRfdOffset + num_write;
4381 }
4382
4383 if (symbolic_header.issExtMax > 0) /* external symbols */
4384 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4385
4386 if (fclose (object_stream) != 0)
4387 pfatal_with_name (object_name);
4388 }
4389
4390 \f
4391 /* Read some bytes at a specified location, and return a pointer. */
4392
4393 STATIC page_t *
4394 read_seek (size, offset, str)
4395 Size_t size; /* # bytes to read */
4396 off_t offset; /* offset to read at */
4397 const char *str; /* name for tracing */
4398 {
4399 page_t *ptr;
4400 long sys_read = 0;
4401
4402 if (size == 0) /* nothing to read */
4403 return (page_t *) 0;
4404
4405 if (debug)
4406 fprintf (stderr,
4407 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4408 (unsigned long) size, (unsigned long) offset, file_offset, str);
4409
4410 #ifndef MALLOC_CHECK
4411 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4412 #else
4413 ptr = (page_t *) xcalloc (1, size);
4414 #endif
4415
4416 /* If we need to seek, and the distance is nearby, just do some reads,
4417 to speed things up. */
4418 if (file_offset != offset)
4419 {
4420 symint_t difference = offset - file_offset;
4421
4422 if (difference < 8)
4423 {
4424 char small_buffer[8];
4425
4426 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4427 if (sys_read <= 0)
4428 pfatal_with_name (obj_in_name);
4429
4430 if ((symint_t)sys_read != difference)
4431 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4432 (unsigned long) size,
4433 obj_in_name,
4434 sys_read);
4435 }
4436 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4437 pfatal_with_name (obj_in_name);
4438 }
4439
4440 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4441 if (sys_read <= 0)
4442 pfatal_with_name (obj_in_name);
4443
4444 if (sys_read != (long) size)
4445 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4446 (unsigned long) size,
4447 obj_in_name,
4448 sys_read);
4449
4450 file_offset = offset + size;
4451
4452 if (file_offset > max_file_offset)
4453 max_file_offset = file_offset;
4454
4455 return ptr;
4456 }
4457
4458 \f
4459 /* Read the existing object file (and copy to the output object file
4460 if it is different from the input object file), and remove the old
4461 symbol table. */
4462
4463 STATIC void
4464 copy_object __proto((void))
4465 {
4466 char buffer[ PAGE_SIZE ];
4467 register int sys_read;
4468 register int remaining;
4469 register int num_write;
4470 register int sys_write;
4471 register int fd, es;
4472 register int delete_ifd = 0;
4473 register int *remap_file_number;
4474 struct stat stat_buf;
4475
4476 if (debug)
4477 fprintf (stderr, "\tcopy\n");
4478
4479 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4480 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4481 pfatal_with_name (obj_in_name);
4482
4483 sys_read = fread ((PTR_T) &orig_file_header,
4484 1,
4485 sizeof (struct filehdr),
4486 obj_in_stream);
4487
4488 if (sys_read < 0)
4489 pfatal_with_name (obj_in_name);
4490
4491 else if (sys_read == 0 && feof (obj_in_stream))
4492 return; /* create a .T file sans file header */
4493
4494 else if (sys_read < (int) sizeof (struct filehdr))
4495 fatal ("Wanted to read %d bytes from %s, system returned %d",
4496 (int) sizeof (struct filehdr),
4497 obj_in_name,
4498 sys_read);
4499
4500
4501 if (orig_file_header.f_nsyms != sizeof (HDRR))
4502 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4503 input_name, orig_file_header.f_nsyms, (int) sizeof (HDRR));
4504
4505
4506 /* Read in the current symbolic header. */
4507 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4508 pfatal_with_name (input_name);
4509
4510 sys_read = fread ((PTR_T) &orig_sym_hdr,
4511 1,
4512 sizeof (orig_sym_hdr),
4513 obj_in_stream);
4514
4515 if (sys_read < 0)
4516 pfatal_with_name (object_name);
4517
4518 else if (sys_read < (int) sizeof (struct filehdr))
4519 fatal ("Wanted to read %d bytes from %s, system returned %d",
4520 (int) sizeof (struct filehdr),
4521 obj_in_name,
4522 sys_read);
4523
4524
4525 /* Read in each of the sections if they exist in the object file.
4526 We read things in in the order the mips assembler creates the
4527 sections, so in theory no extra seeks are done.
4528
4529 For simplicity sake, round each read up to a page boundary,
4530 we may want to revisit this later.... */
4531
4532 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4533
4534 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4535 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4536 orig_sym_hdr.cbLineOffset,
4537 "Line numbers");
4538
4539 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4540 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4541 orig_sym_hdr.cbPdOffset,
4542 "Procedure tables");
4543
4544 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4545 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4546 orig_sym_hdr.cbSymOffset,
4547 "Local symbols");
4548
4549 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4550 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4551 orig_sym_hdr.cbAuxOffset,
4552 "Aux. symbols");
4553
4554 if (orig_sym_hdr.issMax > 0) /* local strings */
4555 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4556 orig_sym_hdr.cbSsOffset,
4557 "Local strings");
4558
4559 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4560 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4561 orig_sym_hdr.cbSsExtOffset,
4562 "External strings");
4563
4564 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4565 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4566 orig_sym_hdr.cbFdOffset,
4567 "File tables");
4568
4569 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4570 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4571 orig_sym_hdr.cbRfdOffset,
4572 "Relative file descriptors");
4573
4574 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4575 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4576 orig_sym_hdr.cbExtOffset,
4577 "External symbols");
4578
4579 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4580 {
4581 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4582 orig_sym_hdr.cbDnOffset,
4583 "Dense numbers");
4584
4585 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4586 }
4587
4588 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4589 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4590 orig_sym_hdr.cbOptOffset,
4591 "Optimizer symbols");
4592
4593
4594
4595 /* Abort if the symbol table is not last. */
4596 if (max_file_offset != stat_buf.st_size)
4597 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4598 max_file_offset,
4599 stat_buf.st_size);
4600
4601
4602 /* If the first original file descriptor is a dummy which the assembler
4603 put out, but there are no symbols in it, skip it now. */
4604 if (orig_sym_hdr.ifdMax > 1
4605 && orig_files->csym == 2
4606 && orig_files->caux == 0)
4607 {
4608 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4609 char *suffix = local_rindex (filename, '.');
4610
4611 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4612 delete_ifd = 1;
4613 }
4614
4615
4616 /* Create array to map original file numbers to the new file numbers
4617 (in case there are duplicate filenames, we collapse them into one
4618 file section, the MIPS assembler may or may not collapse them). */
4619
4620 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4621
4622 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4623 {
4624 register FDR *fd_ptr = ORIG_FILES (fd);
4625 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4626
4627 /* file support itself. */
4628 add_file (filename, filename + strlen (filename));
4629 remap_file_number[fd] = cur_file_ptr->file_index;
4630 }
4631
4632 if (delete_ifd > 0) /* just in case */
4633 remap_file_number[0] = remap_file_number[1];
4634
4635
4636 /* Loop, adding each of the external symbols. These must be in
4637 order or otherwise we would have to change the relocation
4638 entries. We don't just call add_bytes, because we need to have
4639 the names put into the external hash table. We set the type to
4640 'void' for now, and parse_def will fill in the correct type if it
4641 is in the symbol table. We must add the external symbols before
4642 the locals, since the locals do lookups against the externals. */
4643
4644 if (debug)
4645 fprintf (stderr, "\tehash\n");
4646
4647 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4648 {
4649 register EXTR *eptr = orig_ext_syms + es;
4650 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4651 register unsigned ifd = eptr->ifd;
4652
4653 (void) add_ext_symbol (ename,
4654 ename + strlen (ename),
4655 (st_t) eptr->asym.st,
4656 (sc_t) eptr->asym.sc,
4657 eptr->asym.value,
4658 (eptr->asym.index == indexNil
4659 ? (symint_t) indexNil : 0),
4660 ((long) ifd < orig_sym_hdr.ifdMax
4661 ? remap_file_number[ifd] : (int) ifd));
4662 }
4663
4664
4665 /* For each of the files in the object file, copy the symbols, and such
4666 into the varrays for the new object file. */
4667
4668 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4669 {
4670 register FDR *fd_ptr = ORIG_FILES (fd);
4671 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4672 register SYMR *sym_start;
4673 register SYMR *sym;
4674 register SYMR *sym_end_p1;
4675 register PDR *proc_start;
4676 register PDR *proc;
4677 register PDR *proc_end_p1;
4678
4679 /* file support itself. */
4680 add_file (filename, filename + strlen (filename));
4681 cur_file_ptr->orig_fdr = fd_ptr;
4682
4683 /* Copy stuff that's just passed through (such as line #'s) */
4684 cur_file_ptr->fdr.adr = fd_ptr->adr;
4685 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4686 cur_file_ptr->fdr.cline = fd_ptr->cline;
4687 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4688 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4689 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4690 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4691 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4692 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4693 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4694
4695 if (debug)
4696 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4697
4698 /* For each of the static and global symbols defined, add them
4699 to the hash table of original symbols, so we can look up
4700 their values. */
4701
4702 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4703 sym_end_p1 = sym_start + fd_ptr->csym;
4704 for (sym = sym_start; sym < sym_end_p1; sym++)
4705 {
4706 switch ((st_t) sym->st)
4707 {
4708 default:
4709 break;
4710
4711 case st_Global:
4712 case st_Static:
4713 case st_Label:
4714 case st_Proc:
4715 case st_StaticProc:
4716 {
4717 auto symint_t hash_index;
4718 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4719 register Size_t len = strlen (str);
4720 register shash_t *shash_ptr = hash_string (str,
4721 (Ptrdiff_t)len,
4722 &orig_str_hash[0],
4723 &hash_index);
4724
4725 if (shash_ptr != (shash_t *) 0)
4726 error ("internal error, %s is already in original symbol table", str);
4727
4728 else
4729 {
4730 shash_ptr = allocate_shash ();
4731 shash_ptr->next = orig_str_hash[hash_index];
4732 orig_str_hash[hash_index] = shash_ptr;
4733
4734 shash_ptr->len = len;
4735 shash_ptr->indx = indexNil;
4736 shash_ptr->string = str;
4737 shash_ptr->sym_ptr = sym;
4738 }
4739 }
4740 break;
4741
4742 case st_End:
4743 if ((sc_t) sym->sc == sc_Text)
4744 {
4745 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4746
4747 if (*str != '\0')
4748 {
4749 register Size_t len = strlen (str);
4750 register shash_t *shash_ptr = hash_string (str,
4751 (Ptrdiff_t)len,
4752 &orig_str_hash[0],
4753 (symint_t *) 0);
4754
4755 if (shash_ptr != (shash_t *) 0)
4756 shash_ptr->end_ptr = sym;
4757 }
4758 }
4759 break;
4760
4761 }
4762 }
4763
4764 if (debug)
4765 {
4766 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4767 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4768 }
4769
4770 /* Go through each of the procedures in this file, and add the
4771 procedure pointer to the hash entry for the given name. */
4772
4773 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4774 proc_end_p1 = proc_start + fd_ptr->cpd;
4775 for (proc = proc_start; proc < proc_end_p1; proc++)
4776 {
4777 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4778 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4779 register Size_t len = strlen (str);
4780 register shash_t *shash_ptr = hash_string (str,
4781 (Ptrdiff_t)len,
4782 &orig_str_hash[0],
4783 (symint_t *) 0);
4784
4785 if (shash_ptr == (shash_t *) 0)
4786 error ("internal error, function %s is not in original symbol table", str);
4787
4788 else
4789 shash_ptr->proc_ptr = proc;
4790 }
4791
4792 if (debug)
4793 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4794
4795 }
4796 cur_file_ptr = first_file;
4797
4798
4799 /* Copy all of the object file up to the symbol table. Originally
4800 we were going to use ftruncate, but that doesn't seem to work
4801 on Ultrix 3.1.... */
4802
4803 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4804 pfatal_with_name (obj_in_name);
4805
4806 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4807 pfatal_with_name (object_name);
4808
4809 for (remaining = orig_file_header.f_symptr;
4810 remaining > 0;
4811 remaining -= num_write)
4812 {
4813 num_write
4814 = (remaining <= (int) sizeof (buffer))
4815 ? remaining : (int) sizeof (buffer);
4816 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4817 if (sys_read <= 0)
4818 pfatal_with_name (obj_in_name);
4819
4820 else if (sys_read != num_write)
4821 fatal ("Wanted to read %d bytes from %s, system returned %d",
4822 num_write,
4823 obj_in_name,
4824 sys_read);
4825
4826 sys_write = fwrite (buffer, 1, num_write, object_stream);
4827 if (sys_write <= 0)
4828 pfatal_with_name (object_name);
4829
4830 else if (sys_write != num_write)
4831 fatal ("Wrote %d bytes to %s, system returned %d",
4832 num_write,
4833 object_name,
4834 sys_write);
4835 }
4836 }
4837
4838 \f
4839 /* Ye olde main program. */
4840
4841 extern int main PARAMS ((int, char **));
4842
4843 int
4844 main (argc, argv)
4845 int argc;
4846 char **argv;
4847 {
4848 int iflag = 0;
4849 char *p = local_rindex (argv[0], '/');
4850 char *num_end;
4851 int option;
4852 int i;
4853
4854 progname = (p != 0) ? p+1 : argv[0];
4855
4856 (void) signal (SIGSEGV, catch_signal);
4857 (void) signal (SIGBUS, catch_signal);
4858 (void) signal (SIGABRT, catch_signal);
4859
4860 #if !defined(__SABER__) && !defined(lint)
4861 if (sizeof (efdr_t) > PAGE_USIZE)
4862 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4863 (int) sizeof (efdr_t),
4864 (int) PAGE_USIZE);
4865
4866 if (sizeof (page_t) != PAGE_USIZE)
4867 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4868 (int) sizeof (page_t),
4869 (int) PAGE_USIZE);
4870
4871 #endif
4872
4873 alloc_counts[ alloc_type_none ].alloc_name = "none";
4874 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4875 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4876 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4877 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4878 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4879 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4880 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4881 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4882
4883 int_type_info = type_info_init;
4884 int_type_info.basic_type = bt_Int;
4885
4886 void_type_info = type_info_init;
4887 void_type_info.basic_type = bt_Void;
4888
4889 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4890 switch (option)
4891 {
4892 default:
4893 had_errors++;
4894 break;
4895
4896 case 'd':
4897 debug = strtol (optarg, &num_end, 0);
4898 if ((unsigned)debug > 4 || num_end == optarg)
4899 had_errors++;
4900
4901 break;
4902
4903 case 'I':
4904 if (rename_output || obj_in_name != (char *) 0)
4905 had_errors++;
4906 else
4907 rename_output = 1;
4908
4909 /* fall through to 'i' case. */
4910
4911 case 'i':
4912 if (obj_in_name == (char *) 0)
4913 {
4914 obj_in_name = optarg;
4915 iflag++;
4916 }
4917 else
4918 had_errors++;
4919 break;
4920
4921 case 'o':
4922 if (object_name == (char *) 0)
4923 object_name = optarg;
4924 else
4925 had_errors++;
4926 break;
4927
4928 case 'v':
4929 version++;
4930 break;
4931 }
4932
4933 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4934 obj_in_name = argv[--argc];
4935
4936 if (object_name == (char *) 0 && optind <= argc - 2)
4937 object_name = argv[--argc];
4938
4939 /* If there is an output name, but no input name use
4940 the same file for both, deleting the name between
4941 opening it for input and opening it for output. */
4942 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4943 {
4944 obj_in_name = object_name;
4945 delete_input = 1;
4946 }
4947
4948 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4949 {
4950 fprintf (stderr, "Calling Sequence:\n");
4951 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4952 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4953 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4954 fprintf (stderr, "\n");
4955 fprintf (stderr, "Debug levels are:\n");
4956 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4957 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4958 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4959 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4960 return 1;
4961 }
4962
4963
4964 if (version)
4965 {
4966 fprintf (stderr, "mips-tfile version %s", version_string);
4967 #ifdef TARGET_VERSION
4968 TARGET_VERSION;
4969 #endif
4970 fputc ('\n', stderr);
4971 }
4972
4973 if (obj_in_name == (char *) 0)
4974 obj_in_name = object_name;
4975
4976 if (rename_output && rename (object_name, obj_in_name) != 0)
4977 {
4978 char *buffer = (char *) allocate_multiple_pages (4);
4979 int len;
4980 int len2;
4981 int in_fd;
4982 int out_fd;
4983
4984 /* Rename failed, copy input file */
4985 in_fd = open (object_name, O_RDONLY, 0666);
4986 if (in_fd < 0)
4987 pfatal_with_name (object_name);
4988
4989 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4990 if (out_fd < 0)
4991 pfatal_with_name (obj_in_name);
4992
4993 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4994 {
4995 len2 = write (out_fd, buffer, len);
4996 if (len2 < 0)
4997 pfatal_with_name (object_name);
4998
4999 if (len != len2)
5000 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5001 }
5002
5003 free_multiple_pages ((page_t *)buffer, 4);
5004
5005 if (len < 0)
5006 pfatal_with_name (object_name);
5007
5008 if (close (in_fd) < 0)
5009 pfatal_with_name (object_name);
5010
5011 if (close (out_fd) < 0)
5012 pfatal_with_name (obj_in_name);
5013 }
5014
5015 /* Must open input before output, since the output may be the same file, and
5016 we need to get the input handle before truncating it. */
5017 obj_in_stream = fopen (obj_in_name, "r");
5018 if (obj_in_stream == (FILE *) 0)
5019 pfatal_with_name (obj_in_name);
5020
5021 if (delete_input && unlink (obj_in_name) != 0)
5022 pfatal_with_name (obj_in_name);
5023
5024 object_stream = fopen (object_name, "w");
5025 if (object_stream == (FILE *) 0)
5026 pfatal_with_name (object_name);
5027
5028 if (strcmp (argv[optind], "-") != 0)
5029 {
5030 input_name = argv[optind];
5031 if (freopen (argv[optind], "r", stdin) != stdin)
5032 pfatal_with_name (argv[optind]);
5033 }
5034
5035 copy_object (); /* scan & copy object file */
5036 parse_input (); /* scan all of input */
5037
5038 update_headers (); /* write out tfile */
5039 write_object ();
5040
5041 if (debug)
5042 {
5043 fprintf (stderr, "\n\tAllocation summary:\n\n");
5044 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5045 if (alloc_counts[i].total_alloc)
5046 {
5047 fprintf (stderr,
5048 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5049 alloc_counts[i].alloc_name,
5050 alloc_counts[i].total_alloc,
5051 alloc_counts[i].total_free,
5052 alloc_counts[i].total_pages);
5053 }
5054 }
5055
5056 return (had_errors) ? 1 : 0;
5057 }
5058
5059 \f
5060 /* Catch a signal and exit without dumping core. */
5061
5062 STATIC void
5063 catch_signal (signum)
5064 int signum;
5065 {
5066 (void) signal (signum, SIG_DFL); /* just in case... */
5067 fatal ("%s", strsignal(signum));
5068 }
5069
5070 /* Print a fatal error message. NAME is the text.
5071 Also include a system error message based on `errno'. */
5072
5073 void
5074 pfatal_with_name (msg)
5075 const char *msg;
5076 {
5077 int save_errno = errno; /* just in case.... */
5078 if (line_number > 0)
5079 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5080 else
5081 fprintf (stderr, "%s:", progname);
5082
5083 errno = save_errno;
5084 if (errno == 0)
5085 fprintf (stderr, "[errno = 0] %s\n", msg);
5086 else
5087 perror (msg);
5088
5089 exit (1);
5090 }
5091
5092 \f
5093 /* Procedure to abort with an out of bounds error message. It has
5094 type int, so it can be used with an ?: expression within the
5095 ORIG_xxx macros, but the function never returns. */
5096
5097 static int
5098 out_of_bounds (indx, max, str, prog_line)
5099 symint_t indx; /* index that is out of bounds */
5100 symint_t max; /* maximum index */
5101 const char *str; /* string to print out */
5102 int prog_line; /* line number within mips-tfile.c */
5103 {
5104 if (indx < max) /* just in case */
5105 return 0;
5106
5107 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5108 progname, input_name, line_number, indx, str, max, prog_line);
5109
5110 exit (1);
5111 return 0; /* turn off warning messages */
5112 }
5113
5114 \f
5115 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5116 like sbrk's behind its back (or sbrk isn't available). If we use
5117 sbrk, we assume it gives us zeroed pages. */
5118
5119 #ifndef MALLOC_CHECK
5120 #ifdef USE_MALLOC
5121
5122 STATIC page_t *
5123 allocate_cluster (npages)
5124 Size_t npages;
5125 {
5126 register page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5127
5128 if (debug > 3)
5129 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5130
5131 return value;
5132 }
5133
5134 #else /* USE_MALLOC */
5135
5136 STATIC page_t *
5137 allocate_cluster (npages)
5138 Size_t npages;
5139 {
5140 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5141 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5142
5143 if (offset != 0) /* align to a page boundary */
5144 {
5145 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5146 pfatal_with_name ("allocate_cluster");
5147
5148 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5149 }
5150
5151 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5152 pfatal_with_name ("allocate_cluster");
5153
5154 if (debug > 3)
5155 {
5156 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5157 (unsigned long) npages);
5158 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5159 fputs ("\n", stderr);
5160 }
5161
5162 return ptr;
5163 }
5164
5165 #endif /* USE_MALLOC */
5166
5167
5168 static page_t *cluster_ptr = NULL;
5169 static unsigned pages_left = 0;
5170
5171 #endif /* MALLOC_CHECK */
5172
5173
5174 /* Allocate some pages (which is initialized to 0). */
5175
5176 STATIC page_t *
5177 allocate_multiple_pages (npages)
5178 Size_t npages;
5179 {
5180 #ifndef MALLOC_CHECK
5181 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5182 {
5183 pages_left = MAX_CLUSTER_PAGES;
5184 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5185 }
5186
5187 if (npages <= pages_left)
5188 {
5189 page_t *ptr = cluster_ptr;
5190 cluster_ptr += npages;
5191 pages_left -= npages;
5192 return ptr;
5193 }
5194
5195 return allocate_cluster (npages);
5196
5197 #else /* MALLOC_CHECK */
5198 return (page_t *) xcalloc (npages, PAGE_SIZE);
5199
5200 #endif /* MALLOC_CHECK */
5201 }
5202
5203
5204 /* Release some pages. */
5205
5206 STATIC void
5207 free_multiple_pages (page_ptr, npages)
5208 page_t *page_ptr;
5209 Size_t npages;
5210 {
5211 #ifndef MALLOC_CHECK
5212 if (pages_left == 0)
5213 {
5214 cluster_ptr = page_ptr;
5215 pages_left = npages;
5216 }
5217
5218 else if ((page_ptr + npages) == cluster_ptr)
5219 {
5220 cluster_ptr -= npages;
5221 pages_left += npages;
5222 }
5223
5224 /* otherwise the page is not freed. If more than call is
5225 done, we probably should worry about it, but at present,
5226 the free pages is done right after an allocate. */
5227
5228 #else /* MALLOC_CHECK */
5229 free ((char *) page_ptr);
5230
5231 #endif /* MALLOC_CHECK */
5232 }
5233
5234
5235 /* Allocate one page (which is initialized to 0). */
5236
5237 STATIC page_t *
5238 allocate_page __proto((void))
5239 {
5240 #ifndef MALLOC_CHECK
5241 if (pages_left == 0)
5242 {
5243 pages_left = MAX_CLUSTER_PAGES;
5244 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5245 }
5246
5247 pages_left--;
5248 return cluster_ptr++;
5249
5250 #else /* MALLOC_CHECK */
5251 return (page_t *) xcalloc (1, PAGE_SIZE);
5252
5253 #endif /* MALLOC_CHECK */
5254 }
5255
5256 \f
5257 /* Allocate scoping information. */
5258
5259 STATIC scope_t *
5260 allocate_scope __proto((void))
5261 {
5262 register scope_t *ptr;
5263 static scope_t initial_scope;
5264
5265 #ifndef MALLOC_CHECK
5266 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5267 if (ptr != (scope_t *) 0)
5268 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5269
5270 else
5271 {
5272 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5273 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5274
5275 if (unallocated == 0)
5276 {
5277 unallocated = PAGE_SIZE / sizeof (scope_t);
5278 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5279 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5280 }
5281
5282 ptr = &cur_page->scope[ --unallocated ];
5283 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5284 }
5285
5286 #else
5287 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5288
5289 #endif
5290
5291 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5292 *ptr = initial_scope;
5293 return ptr;
5294 }
5295
5296 /* Free scoping information. */
5297
5298 STATIC void
5299 free_scope (ptr)
5300 scope_t *ptr;
5301 {
5302 alloc_counts[ (int)alloc_type_scope ].total_free++;
5303
5304 #ifndef MALLOC_CHECK
5305 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5306 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5307
5308 #else
5309 free ((PTR_T) ptr);
5310 #endif
5311
5312 }
5313
5314 \f
5315 /* Allocate links for pages in a virtual array. */
5316
5317 STATIC vlinks_t *
5318 allocate_vlinks __proto((void))
5319 {
5320 register vlinks_t *ptr;
5321 static vlinks_t initial_vlinks;
5322
5323 #ifndef MALLOC_CHECK
5324 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5325 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5326
5327 if (unallocated == 0)
5328 {
5329 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5330 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5331 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5332 }
5333
5334 ptr = &cur_page->vlinks[ --unallocated ];
5335 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5336
5337 #else
5338 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5339
5340 #endif
5341
5342 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5343 *ptr = initial_vlinks;
5344 return ptr;
5345 }
5346
5347 \f
5348 /* Allocate string hash buckets. */
5349
5350 STATIC shash_t *
5351 allocate_shash __proto((void))
5352 {
5353 register shash_t *ptr;
5354 static shash_t initial_shash;
5355
5356 #ifndef MALLOC_CHECK
5357 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5358 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5359
5360 if (unallocated == 0)
5361 {
5362 unallocated = PAGE_SIZE / sizeof (shash_t);
5363 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5364 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5365 }
5366
5367 ptr = &cur_page->shash[ --unallocated ];
5368 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5369
5370 #else
5371 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5372
5373 #endif
5374
5375 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5376 *ptr = initial_shash;
5377 return ptr;
5378 }
5379
5380 \f
5381 /* Allocate type hash buckets. */
5382
5383 STATIC thash_t *
5384 allocate_thash __proto((void))
5385 {
5386 register thash_t *ptr;
5387 static thash_t initial_thash;
5388
5389 #ifndef MALLOC_CHECK
5390 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5391 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5392
5393 if (unallocated == 0)
5394 {
5395 unallocated = PAGE_SIZE / sizeof (thash_t);
5396 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5397 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5398 }
5399
5400 ptr = &cur_page->thash[ --unallocated ];
5401 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5402
5403 #else
5404 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5405
5406 #endif
5407
5408 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5409 *ptr = initial_thash;
5410 return ptr;
5411 }
5412
5413 \f
5414 /* Allocate structure, union, or enum tag information. */
5415
5416 STATIC tag_t *
5417 allocate_tag __proto((void))
5418 {
5419 register tag_t *ptr;
5420 static tag_t initial_tag;
5421
5422 #ifndef MALLOC_CHECK
5423 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5424 if (ptr != (tag_t *) 0)
5425 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5426
5427 else
5428 {
5429 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5430 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5431
5432 if (unallocated == 0)
5433 {
5434 unallocated = PAGE_SIZE / sizeof (tag_t);
5435 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5436 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5437 }
5438
5439 ptr = &cur_page->tag[ --unallocated ];
5440 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5441 }
5442
5443 #else
5444 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5445
5446 #endif
5447
5448 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5449 *ptr = initial_tag;
5450 return ptr;
5451 }
5452
5453 /* Free scoping information. */
5454
5455 STATIC void
5456 free_tag (ptr)
5457 tag_t *ptr;
5458 {
5459 alloc_counts[ (int)alloc_type_tag ].total_free++;
5460
5461 #ifndef MALLOC_CHECK
5462 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5463 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5464
5465 #else
5466 free ((PTR_T) ptr);
5467 #endif
5468
5469 }
5470
5471 \f
5472 /* Allocate forward reference to a yet unknown tag. */
5473
5474 STATIC forward_t *
5475 allocate_forward __proto((void))
5476 {
5477 register forward_t *ptr;
5478 static forward_t initial_forward;
5479
5480 #ifndef MALLOC_CHECK
5481 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5482 if (ptr != (forward_t *) 0)
5483 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5484
5485 else
5486 {
5487 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5488 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5489
5490 if (unallocated == 0)
5491 {
5492 unallocated = PAGE_SIZE / sizeof (forward_t);
5493 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5494 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5495 }
5496
5497 ptr = &cur_page->forward[ --unallocated ];
5498 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5499 }
5500
5501 #else
5502 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5503
5504 #endif
5505
5506 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5507 *ptr = initial_forward;
5508 return ptr;
5509 }
5510
5511 /* Free scoping information. */
5512
5513 STATIC void
5514 free_forward (ptr)
5515 forward_t *ptr;
5516 {
5517 alloc_counts[ (int)alloc_type_forward ].total_free++;
5518
5519 #ifndef MALLOC_CHECK
5520 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5521 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5522
5523 #else
5524 free ((PTR_T) ptr);
5525 #endif
5526
5527 }
5528
5529 \f
5530 /* Allocate head of type hash list. */
5531
5532 STATIC thead_t *
5533 allocate_thead __proto((void))
5534 {
5535 register thead_t *ptr;
5536 static thead_t initial_thead;
5537
5538 #ifndef MALLOC_CHECK
5539 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5540 if (ptr != (thead_t *) 0)
5541 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5542
5543 else
5544 {
5545 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5546 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5547
5548 if (unallocated == 0)
5549 {
5550 unallocated = PAGE_SIZE / sizeof (thead_t);
5551 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5552 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5553 }
5554
5555 ptr = &cur_page->thead[ --unallocated ];
5556 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5557 }
5558
5559 #else
5560 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5561
5562 #endif
5563
5564 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5565 *ptr = initial_thead;
5566 return ptr;
5567 }
5568
5569 /* Free scoping information. */
5570
5571 STATIC void
5572 free_thead (ptr)
5573 thead_t *ptr;
5574 {
5575 alloc_counts[ (int)alloc_type_thead ].total_free++;
5576
5577 #ifndef MALLOC_CHECK
5578 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5579 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5580
5581 #else
5582 free ((PTR_T) ptr);
5583 #endif
5584
5585 }
5586
5587 #endif /* MIPS_DEBUGGING_INFO */
5588
5589 \f
5590 /* Output an error message and exit */
5591
5592 /*VARARGS*/
5593 void
5594 fatal VPARAMS ((const char *format, ...))
5595 {
5596 #ifndef ANSI_PROTOTYPES
5597 const char *format;
5598 #endif
5599 va_list ap;
5600
5601 VA_START (ap, format);
5602
5603 #ifndef ANSI_PROTOTYPES
5604 format = va_arg (ap, const char *);
5605 #endif
5606
5607 if (line_number > 0)
5608 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5609 else
5610 fprintf (stderr, "%s:", progname);
5611
5612 vfprintf (stderr, format, ap);
5613 va_end (ap);
5614 fprintf (stderr, "\n");
5615 if (line_number > 0)
5616 fprintf (stderr, "line:\t%s\n", cur_line_start);
5617
5618 saber_stop ();
5619 exit (1);
5620 }
5621
5622 /*VARARGS*/
5623 void
5624 error VPARAMS ((const char *format, ...))
5625 {
5626 #ifndef ANSI_PROTOTYPES
5627 char *format;
5628 #endif
5629 va_list ap;
5630
5631 VA_START (ap, format);
5632
5633 #ifndef ANSI_PROTOTYPES
5634 format = va_arg (ap, char *);
5635 #endif
5636
5637 if (line_number > 0)
5638 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5639 else
5640 fprintf (stderr, "%s:", progname);
5641
5642 vfprintf (stderr, format, ap);
5643 fprintf (stderr, "\n");
5644 if (line_number > 0)
5645 fprintf (stderr, "line:\t%s\n", cur_line_start);
5646
5647 had_errors++;
5648 va_end (ap);
5649
5650 saber_stop ();
5651 }
5652
5653 /* More 'friendly' abort that prints the line and file.
5654 config.h can #define abort fancy_abort if you like that sort of thing. */
5655
5656 void
5657 fancy_abort ()
5658 {
5659 fatal ("Internal abort.");
5660 }
5661 \f
5662
5663 /* When `malloc.c' is compiled with `rcheck' defined,
5664 it calls this function to report clobberage. */
5665
5666 void
5667 botch (s)
5668 const char *s;
5669 {
5670 fatal ("%s", s);
5671 }
5672
5673 \f
5674 /* Define our own index/rindex, since the local and global symbol
5675 structures as defined by MIPS has an 'index' field. */
5676
5677 STATIC char *
5678 local_index (str, sentinel)
5679 const char *str;
5680 int sentinel;
5681 {
5682 int ch;
5683
5684 for ( ; (ch = *str) != sentinel; str++)
5685 {
5686 if (ch == '\0')
5687 return (char *) 0;
5688 }
5689
5690 return (char *)str;
5691 }
5692
5693 STATIC char *
5694 local_rindex (str, sentinel)
5695 const char *str;
5696 int sentinel;
5697 {
5698 int ch;
5699 const char *ret = (const char *) 0;
5700
5701 for ( ; (ch = *str) != '\0'; str++)
5702 {
5703 if (ch == sentinel)
5704 ret = str;
5705 }
5706
5707 return (char *)ret;
5708 }
Mirror of https://gcc.gnu.org/git/gcc.git