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1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 93-95, 97, 98, 1999 Free Software Foundation, Inc.
6 Contributed by Michael Meissner (meissner@cygnus.com).
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #include "system.h"
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #define __proto(x) PARAMS(x)
614 typedef PTR PTR_T;
615 typedef const PTR_T CPTR_T;
616
617 /* Due to size_t being defined in sys/types.h and different
618 in stddef.h, we have to do this by hand..... Note, these
619 types are correct for MIPS based systems, and may not be
620 correct for other systems. Ultrix 4.0 and Silicon Graphics
621 have this fixed, but since the following is correct, and
622 the fact that including stddef.h gets you GCC's version
623 instead of the standard one it's not worth it to fix it. */
624
625 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
626 #define Size_t long unsigned int
627 #else
628 #define Size_t unsigned int
629 #endif
630 #define Ptrdiff_t long
631
632 /* The following might be called from obstack or malloc,
633 so they can't be static. */
634
635 extern void pfatal_with_name
636 __proto((const char *));
637 extern void fancy_abort __proto((void));
638 void botch __proto((const char *));
639
640 extern void fatal PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
641 extern void error PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
642 \f
643 #ifndef MIPS_DEBUGGING_INFO
644
645 static int line_number;
646 static int cur_line_start;
647 static int debug;
648 static int had_errors;
649 static const char *progname;
650 static const char *input_name;
651
652 int
653 main ()
654 {
655 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
656 exit (1);
657 }
658
659 #else /* MIPS_DEBUGGING defined */
660 \f
661 /* The local and global symbols have a field index, so undo any defines
662 of index -> strchr and rindex -> strrchr. */
663
664 #undef rindex
665 #undef index
666
667 #include <signal.h>
668
669 #ifndef CROSS_COMPILE
670 #include <a.out.h>
671 #else
672 #include "mips/a.out.h"
673 #endif /* CROSS_COMPILE */
674
675 #if defined (USG) || !defined (HAVE_STAB_H)
676 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
677 #else
678 #include <stab.h> /* On BSD, use the system's stab.h. */
679 #endif /* not USG */
680
681 #include "machmode.h"
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 0, /* adr: memory address of beginning of file */
1083 0, /* rss: file name (of source, if known) */
1084 0, /* issBase: file's string space */
1085 0, /* cbSs: number of bytes in the ss */
1086 0, /* isymBase: beginning of symbols */
1087 0, /* csym: count file's of symbols */
1088 0, /* ilineBase: file's line symbols */
1089 0, /* cline: count of file's line symbols */
1090 0, /* ioptBase: file's optimization entries */
1091 0, /* copt: count of file's optimization entries */
1092 0, /* ipdFirst: start of procedures for this file */
1093 0, /* cpd: count of procedures for this file */
1094 0, /* iauxBase: file's auxiliary entries */
1095 0, /* caux: count of file's auxiliary entries */
1096 0, /* rfdBase: index into the file indirect table */
1097 0, /* crfd: count file indirect entries */
1098 langC, /* lang: language for this file */
1099 1, /* fMerge: whether this file can be merged */
1100 0, /* fReadin: true if read in (not just created) */
1101 #ifdef HOST_WORDS_BIG_ENDIAN
1102 1, /* fBigendian: if 1, compiled on big endian machine */
1103 #else
1104 0, /* fBigendian: if 1, compiled on big endian machine */
1105 #endif
1106 GLEVEL_2, /* glevel: level this file was compiled with */
1107 0, /* reserved: reserved for future use */
1108 0, /* cbLineOffset: byte offset from header for this file ln's */
1109 0, /* cbLine: size of lines for this file */
1110 },
1111
1112 (FDR *) 0, /* orig_fdr: original file header pointer */
1113 (char *) 0, /* name: pointer to filename */
1114 0, /* name_len: length of filename */
1115 0, /* void_type: ptr to aux node for void type */
1116 0, /* int_type: ptr to aux node for int type */
1117 (scope_t *) 0, /* cur_scope: current scope being processed */
1118 0, /* file_index: current file # */
1119 0, /* nested_scopes: # nested scopes */
1120 INIT_VARRAY (char), /* strings: local string varray */
1121 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1122 INIT_VARRAY (PDR), /* procs: procedure varray */
1123 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1124
1125 (struct efdr *) 0, /* next_file: next file structure */
1126
1127 (shash_t **) 0, /* shash_head: string hash table */
1128 { 0 }, /* thash_head: type hash table */
1129 };
1130
1131
1132 static efdr_t *first_file; /* first file descriptor */
1133 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1134
1135
1136 /* Union of various things that are held in pages. */
1137 typedef union page {
1138 char byte [ PAGE_SIZE ];
1139 unsigned char ubyte [ PAGE_SIZE ];
1140 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1141 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1142 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1143 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1144 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1145 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1146 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1147 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1148 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1149 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1150 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1151 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1152 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1153 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1154 } page_t;
1155
1156
1157 /* Structure holding allocation information for small sized structures. */
1158 typedef struct alloc_info {
1159 const char *alloc_name; /* name of this allocation type (must be first) */
1160 page_t *cur_page; /* current page being allocated from */
1161 small_free_t free_list; /* current free list if any */
1162 int unallocated; /* number of elements unallocated on page */
1163 int total_alloc; /* total number of allocations */
1164 int total_free; /* total number of frees */
1165 int total_pages; /* total number of pages allocated */
1166 } alloc_info_t;
1167
1168 /* Type information collected together. */
1169 typedef struct type_info {
1170 bt_t basic_type; /* basic type */
1171 coff_type_t orig_type; /* original COFF-based type */
1172 int num_tq; /* # type qualifiers */
1173 int num_dims; /* # dimensions */
1174 int num_sizes; /* # sizes */
1175 int extra_sizes; /* # extra sizes not tied with dims */
1176 tag_t * tag_ptr; /* tag pointer */
1177 int bitfield; /* symbol is a bitfield */
1178 int unknown_tag; /* this is an unknown tag */
1179 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1180 symint_t dimensions [N_TQ]; /* dimensions for each array */
1181 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1182 struct/union/enum + bitfield size */
1183 } type_info_t;
1184
1185 /* Pre-initialized type_info struct. */
1186 static type_info_t type_info_init = {
1187 bt_Nil, /* basic type */
1188 T_NULL, /* original COFF-based type */
1189 0, /* # type qualifiers */
1190 0, /* # dimensions */
1191 0, /* # sizes */
1192 0, /* sizes not tied with dims */
1193 NULL, /* ptr to tag */
1194 0, /* bitfield */
1195 0, /* unknown tag */
1196 { /* type qualifiers */
1197 tq_Nil,
1198 tq_Nil,
1199 tq_Nil,
1200 tq_Nil,
1201 tq_Nil,
1202 tq_Nil,
1203 },
1204 { /* dimensions */
1205 0,
1206 0,
1207 0,
1208 0,
1209 0,
1210 0
1211 },
1212 { /* sizes */
1213 0,
1214 0,
1215 0,
1216 0,
1217 0,
1218 0,
1219 0,
1220 0,
1221 },
1222 };
1223
1224
1225 /* Global virtual arrays & hash table for external strings as well as
1226 for the tags table and global tables for file descriptors, and
1227 dense numbers. */
1228
1229 static varray_t file_desc = INIT_VARRAY (efdr_t);
1230 static varray_t dense_num = INIT_VARRAY (DNR);
1231 static varray_t tag_strings = INIT_VARRAY (char);
1232 static varray_t ext_strings = INIT_VARRAY (char);
1233 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1234
1235 static shash_t *orig_str_hash[SHASH_SIZE];
1236 static shash_t *ext_str_hash [SHASH_SIZE];
1237 static shash_t *tag_hash [SHASH_SIZE];
1238
1239 /* Static types for int and void. Also, remember the last function's
1240 type (which is set up when we encounter the declaration for the
1241 function, and used when the end block for the function is emitted. */
1242
1243 static type_info_t int_type_info;
1244 static type_info_t void_type_info;
1245 static type_info_t last_func_type_info;
1246 static EXTR *last_func_eptr;
1247
1248
1249 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1250 really should use bt_Void, but this causes the current ecoff GDB to
1251 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1252 2.0) doesn't understand it, even though the compiler generates it.
1253 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1254 suite, but for now go with what works. */
1255
1256 static bt_t map_coff_types[ (int)T_MAX ] = {
1257 bt_Nil, /* T_NULL */
1258 bt_Nil, /* T_ARG */
1259 bt_Char, /* T_CHAR */
1260 bt_Short, /* T_SHORT */
1261 bt_Int, /* T_INT */
1262 bt_Long, /* T_LONG */
1263 bt_Float, /* T_FLOAT */
1264 bt_Double, /* T_DOUBLE */
1265 bt_Struct, /* T_STRUCT */
1266 bt_Union, /* T_UNION */
1267 bt_Enum, /* T_ENUM */
1268 bt_Enum, /* T_MOE */
1269 bt_UChar, /* T_UCHAR */
1270 bt_UShort, /* T_USHORT */
1271 bt_UInt, /* T_UINT */
1272 bt_ULong /* T_ULONG */
1273 };
1274
1275 /* Convert COFF storage class to ECOFF storage class. */
1276 static sc_t map_coff_storage[ (int)C_MAX ] = {
1277 sc_Nil, /* 0: C_NULL */
1278 sc_Abs, /* 1: C_AUTO auto var */
1279 sc_Undefined, /* 2: C_EXT external */
1280 sc_Data, /* 3: C_STAT static */
1281 sc_Register, /* 4: C_REG register */
1282 sc_Undefined, /* 5: C_EXTDEF ??? */
1283 sc_Text, /* 6: C_LABEL label */
1284 sc_Text, /* 7: C_ULABEL user label */
1285 sc_Info, /* 8: C_MOS member of struct */
1286 sc_Abs, /* 9: C_ARG argument */
1287 sc_Info, /* 10: C_STRTAG struct tag */
1288 sc_Info, /* 11: C_MOU member of union */
1289 sc_Info, /* 12: C_UNTAG union tag */
1290 sc_Info, /* 13: C_TPDEF typedef */
1291 sc_Data, /* 14: C_USTATIC ??? */
1292 sc_Info, /* 15: C_ENTAG enum tag */
1293 sc_Info, /* 16: C_MOE member of enum */
1294 sc_Register, /* 17: C_REGPARM register parameter */
1295 sc_Bits, /* 18; C_FIELD bitfield */
1296 sc_Nil, /* 19 */
1297 sc_Nil, /* 20 */
1298 sc_Nil, /* 21 */
1299 sc_Nil, /* 22 */
1300 sc_Nil, /* 23 */
1301 sc_Nil, /* 24 */
1302 sc_Nil, /* 25 */
1303 sc_Nil, /* 26 */
1304 sc_Nil, /* 27 */
1305 sc_Nil, /* 28 */
1306 sc_Nil, /* 29 */
1307 sc_Nil, /* 30 */
1308 sc_Nil, /* 31 */
1309 sc_Nil, /* 32 */
1310 sc_Nil, /* 33 */
1311 sc_Nil, /* 34 */
1312 sc_Nil, /* 35 */
1313 sc_Nil, /* 36 */
1314 sc_Nil, /* 37 */
1315 sc_Nil, /* 38 */
1316 sc_Nil, /* 39 */
1317 sc_Nil, /* 40 */
1318 sc_Nil, /* 41 */
1319 sc_Nil, /* 42 */
1320 sc_Nil, /* 43 */
1321 sc_Nil, /* 44 */
1322 sc_Nil, /* 45 */
1323 sc_Nil, /* 46 */
1324 sc_Nil, /* 47 */
1325 sc_Nil, /* 48 */
1326 sc_Nil, /* 49 */
1327 sc_Nil, /* 50 */
1328 sc_Nil, /* 51 */
1329 sc_Nil, /* 52 */
1330 sc_Nil, /* 53 */
1331 sc_Nil, /* 54 */
1332 sc_Nil, /* 55 */
1333 sc_Nil, /* 56 */
1334 sc_Nil, /* 57 */
1335 sc_Nil, /* 58 */
1336 sc_Nil, /* 59 */
1337 sc_Nil, /* 60 */
1338 sc_Nil, /* 61 */
1339 sc_Nil, /* 62 */
1340 sc_Nil, /* 63 */
1341 sc_Nil, /* 64 */
1342 sc_Nil, /* 65 */
1343 sc_Nil, /* 66 */
1344 sc_Nil, /* 67 */
1345 sc_Nil, /* 68 */
1346 sc_Nil, /* 69 */
1347 sc_Nil, /* 70 */
1348 sc_Nil, /* 71 */
1349 sc_Nil, /* 72 */
1350 sc_Nil, /* 73 */
1351 sc_Nil, /* 74 */
1352 sc_Nil, /* 75 */
1353 sc_Nil, /* 76 */
1354 sc_Nil, /* 77 */
1355 sc_Nil, /* 78 */
1356 sc_Nil, /* 79 */
1357 sc_Nil, /* 80 */
1358 sc_Nil, /* 81 */
1359 sc_Nil, /* 82 */
1360 sc_Nil, /* 83 */
1361 sc_Nil, /* 84 */
1362 sc_Nil, /* 85 */
1363 sc_Nil, /* 86 */
1364 sc_Nil, /* 87 */
1365 sc_Nil, /* 88 */
1366 sc_Nil, /* 89 */
1367 sc_Nil, /* 90 */
1368 sc_Nil, /* 91 */
1369 sc_Nil, /* 92 */
1370 sc_Nil, /* 93 */
1371 sc_Nil, /* 94 */
1372 sc_Nil, /* 95 */
1373 sc_Nil, /* 96 */
1374 sc_Nil, /* 97 */
1375 sc_Nil, /* 98 */
1376 sc_Nil, /* 99 */
1377 sc_Text, /* 100: C_BLOCK block start/end */
1378 sc_Text, /* 101: C_FCN function start/end */
1379 sc_Info, /* 102: C_EOS end of struct/union/enum */
1380 sc_Nil, /* 103: C_FILE file start */
1381 sc_Nil, /* 104: C_LINE line number */
1382 sc_Nil, /* 105: C_ALIAS combined type info */
1383 sc_Nil, /* 106: C_HIDDEN ??? */
1384 };
1385
1386 /* Convert COFF storage class to ECOFF symbol type. */
1387 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1388 st_Nil, /* 0: C_NULL */
1389 st_Local, /* 1: C_AUTO auto var */
1390 st_Global, /* 2: C_EXT external */
1391 st_Static, /* 3: C_STAT static */
1392 st_Local, /* 4: C_REG register */
1393 st_Global, /* 5: C_EXTDEF ??? */
1394 st_Label, /* 6: C_LABEL label */
1395 st_Label, /* 7: C_ULABEL user label */
1396 st_Member, /* 8: C_MOS member of struct */
1397 st_Param, /* 9: C_ARG argument */
1398 st_Block, /* 10: C_STRTAG struct tag */
1399 st_Member, /* 11: C_MOU member of union */
1400 st_Block, /* 12: C_UNTAG union tag */
1401 st_Typedef, /* 13: C_TPDEF typedef */
1402 st_Static, /* 14: C_USTATIC ??? */
1403 st_Block, /* 15: C_ENTAG enum tag */
1404 st_Member, /* 16: C_MOE member of enum */
1405 st_Param, /* 17: C_REGPARM register parameter */
1406 st_Member, /* 18; C_FIELD bitfield */
1407 st_Nil, /* 19 */
1408 st_Nil, /* 20 */
1409 st_Nil, /* 21 */
1410 st_Nil, /* 22 */
1411 st_Nil, /* 23 */
1412 st_Nil, /* 24 */
1413 st_Nil, /* 25 */
1414 st_Nil, /* 26 */
1415 st_Nil, /* 27 */
1416 st_Nil, /* 28 */
1417 st_Nil, /* 29 */
1418 st_Nil, /* 30 */
1419 st_Nil, /* 31 */
1420 st_Nil, /* 32 */
1421 st_Nil, /* 33 */
1422 st_Nil, /* 34 */
1423 st_Nil, /* 35 */
1424 st_Nil, /* 36 */
1425 st_Nil, /* 37 */
1426 st_Nil, /* 38 */
1427 st_Nil, /* 39 */
1428 st_Nil, /* 40 */
1429 st_Nil, /* 41 */
1430 st_Nil, /* 42 */
1431 st_Nil, /* 43 */
1432 st_Nil, /* 44 */
1433 st_Nil, /* 45 */
1434 st_Nil, /* 46 */
1435 st_Nil, /* 47 */
1436 st_Nil, /* 48 */
1437 st_Nil, /* 49 */
1438 st_Nil, /* 50 */
1439 st_Nil, /* 51 */
1440 st_Nil, /* 52 */
1441 st_Nil, /* 53 */
1442 st_Nil, /* 54 */
1443 st_Nil, /* 55 */
1444 st_Nil, /* 56 */
1445 st_Nil, /* 57 */
1446 st_Nil, /* 58 */
1447 st_Nil, /* 59 */
1448 st_Nil, /* 60 */
1449 st_Nil, /* 61 */
1450 st_Nil, /* 62 */
1451 st_Nil, /* 63 */
1452 st_Nil, /* 64 */
1453 st_Nil, /* 65 */
1454 st_Nil, /* 66 */
1455 st_Nil, /* 67 */
1456 st_Nil, /* 68 */
1457 st_Nil, /* 69 */
1458 st_Nil, /* 70 */
1459 st_Nil, /* 71 */
1460 st_Nil, /* 72 */
1461 st_Nil, /* 73 */
1462 st_Nil, /* 74 */
1463 st_Nil, /* 75 */
1464 st_Nil, /* 76 */
1465 st_Nil, /* 77 */
1466 st_Nil, /* 78 */
1467 st_Nil, /* 79 */
1468 st_Nil, /* 80 */
1469 st_Nil, /* 81 */
1470 st_Nil, /* 82 */
1471 st_Nil, /* 83 */
1472 st_Nil, /* 84 */
1473 st_Nil, /* 85 */
1474 st_Nil, /* 86 */
1475 st_Nil, /* 87 */
1476 st_Nil, /* 88 */
1477 st_Nil, /* 89 */
1478 st_Nil, /* 90 */
1479 st_Nil, /* 91 */
1480 st_Nil, /* 92 */
1481 st_Nil, /* 93 */
1482 st_Nil, /* 94 */
1483 st_Nil, /* 95 */
1484 st_Nil, /* 96 */
1485 st_Nil, /* 97 */
1486 st_Nil, /* 98 */
1487 st_Nil, /* 99 */
1488 st_Block, /* 100: C_BLOCK block start/end */
1489 st_Proc, /* 101: C_FCN function start/end */
1490 st_End, /* 102: C_EOS end of struct/union/enum */
1491 st_File, /* 103: C_FILE file start */
1492 st_Nil, /* 104: C_LINE line number */
1493 st_Nil, /* 105: C_ALIAS combined type info */
1494 st_Nil, /* 106: C_HIDDEN ??? */
1495 };
1496
1497 /* Map COFF derived types to ECOFF type qualifiers. */
1498 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1499 tq_Nil, /* 0: DT_NON no more qualifiers */
1500 tq_Ptr, /* 1: DT_PTR pointer */
1501 tq_Proc, /* 2: DT_FCN function */
1502 tq_Array, /* 3: DT_ARY array */
1503 };
1504
1505
1506 /* Keep track of different sized allocation requests. */
1507 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1508
1509 \f
1510 /* Pointers and such to the original symbol table that is read in. */
1511 static struct filehdr orig_file_header; /* global object file header */
1512
1513 static HDRR orig_sym_hdr; /* symbolic header on input */
1514 static char *orig_linenum; /* line numbers */
1515 static DNR *orig_dense; /* dense numbers */
1516 static PDR *orig_procs; /* procedures */
1517 static SYMR *orig_local_syms; /* local symbols */
1518 static OPTR *orig_opt_syms; /* optimization symbols */
1519 static AUXU *orig_aux_syms; /* auxiliary symbols */
1520 static char *orig_local_strs; /* local strings */
1521 static char *orig_ext_strs; /* external strings */
1522 static FDR *orig_files; /* file descriptors */
1523 static symint_t *orig_rfds; /* relative file desc's */
1524 static EXTR *orig_ext_syms; /* external symbols */
1525
1526 /* Macros to convert an index into a given object within the original
1527 symbol table. */
1528 #define CHECK(num,max,str) \
1529 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1530
1531 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1532 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1533 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1534 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1535 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1536 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1537 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1538 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1539 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1540 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1541 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1542
1543 /* Various other statics. */
1544 static HDRR symbolic_header; /* symbolic header */
1545 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1546 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1547 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1548 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1549 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1550 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1551 static long file_offset = 0; /* current file offset */
1552 static long max_file_offset = 0; /* maximum file offset */
1553 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1554 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1555 static char *progname = (char *) 0; /* program name for errors */
1556 static const char *input_name = "stdin"; /* name of input file */
1557 static char *object_name = (char *) 0; /* tmp. name of object file */
1558 static char *obj_in_name = (char *) 0; /* name of input object file */
1559 static char *cur_line_start = (char *) 0; /* current line read in */
1560 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1561 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1562 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1563 static long line_number = 0; /* current input line number */
1564 static int debug = 0; /* trace functions */
1565 static int version = 0; /* print version # */
1566 static int had_errors = 0; /* != 0 if errors were found */
1567 static int rename_output = 0; /* != 0 if rename output file*/
1568 static int delete_input = 0; /* != 0 if delete input after done */
1569 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1570
1571
1572 /* Pseudo symbol to use when putting stabs into the symbol table. */
1573 #ifndef STABS_SYMBOL
1574 #define STABS_SYMBOL "@stabs"
1575 #endif
1576
1577 static char stabs_symbol[] = STABS_SYMBOL;
1578
1579 \f
1580 /* Forward reference for functions. See the definition for more details. */
1581
1582 #ifndef STATIC
1583 #define STATIC static
1584 #endif
1585
1586 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1587
1588 STATIC shash_t *hash_string __proto((const char *,
1589 Ptrdiff_t,
1590 shash_t **,
1591 symint_t *));
1592
1593 STATIC symint_t add_string __proto((varray_t *,
1594 shash_t **,
1595 const char *,
1596 const char *,
1597 shash_t **));
1598
1599 STATIC symint_t add_local_symbol
1600 __proto((const char *,
1601 const char *,
1602 st_t,
1603 sc_t,
1604 symint_t,
1605 symint_t));
1606
1607 STATIC symint_t add_ext_symbol __proto((const char *,
1608 const char *,
1609 st_t,
1610 sc_t,
1611 long,
1612 symint_t,
1613 int));
1614
1615 STATIC symint_t add_aux_sym_symint
1616 __proto((symint_t));
1617
1618 STATIC symint_t add_aux_sym_rndx
1619 __proto((int, symint_t));
1620
1621 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1622 hash_state_t,
1623 thash_t **));
1624
1625 STATIC tag_t * get_tag __proto((const char *,
1626 const char *,
1627 symint_t,
1628 bt_t));
1629
1630 STATIC void add_unknown_tag __proto((tag_t *));
1631
1632 STATIC void add_procedure __proto((const char *,
1633 const char *));
1634
1635 STATIC void add_file __proto((const char *,
1636 const char *));
1637
1638 STATIC void add_bytes __proto((varray_t *,
1639 char *,
1640 Size_t));
1641
1642 STATIC void add_varray_page __proto((varray_t *));
1643
1644 STATIC void update_headers __proto((void));
1645
1646 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1647 STATIC void write_object __proto((void));
1648 STATIC const char *st_to_string __proto((st_t));
1649 STATIC const char *sc_to_string __proto((sc_t));
1650 STATIC char *read_line __proto((void));
1651 STATIC void parse_input __proto((void));
1652 STATIC void mark_stabs __proto((const char *));
1653 STATIC void parse_begin __proto((const char *));
1654 STATIC void parse_bend __proto((const char *));
1655 STATIC void parse_def __proto((const char *));
1656 STATIC void parse_end __proto((const char *));
1657 STATIC void parse_ent __proto((const char *));
1658 STATIC void parse_file __proto((const char *));
1659 STATIC void parse_stabs_common
1660 __proto((const char *, const char *, const char *));
1661 STATIC void parse_stabs __proto((const char *));
1662 STATIC void parse_stabn __proto((const char *));
1663 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1664 STATIC void copy_object __proto((void));
1665
1666 STATIC void catch_signal __proto((int));
1667 STATIC page_t *allocate_page __proto((void));
1668
1669 STATIC page_t *allocate_multiple_pages
1670 __proto((Size_t));
1671
1672 STATIC void free_multiple_pages
1673 __proto((page_t *, Size_t));
1674
1675 #ifndef MALLOC_CHECK
1676 STATIC page_t *allocate_cluster
1677 __proto((Size_t));
1678 #endif
1679
1680 STATIC forward_t *allocate_forward __proto((void));
1681 STATIC scope_t *allocate_scope __proto((void));
1682 STATIC shash_t *allocate_shash __proto((void));
1683 STATIC tag_t *allocate_tag __proto((void));
1684 STATIC thash_t *allocate_thash __proto((void));
1685 STATIC thead_t *allocate_thead __proto((void));
1686 STATIC vlinks_t *allocate_vlinks __proto((void));
1687
1688 STATIC void free_forward __proto((forward_t *));
1689 STATIC void free_scope __proto((scope_t *));
1690 STATIC void free_tag __proto((tag_t *));
1691 STATIC void free_thead __proto((thead_t *));
1692
1693 STATIC char *local_index __proto((const char *, int));
1694 STATIC char *local_rindex __proto((const char *, int));
1695
1696 extern char *mktemp __proto((char *));
1697 extern long strtol __proto((const char *, char **, int));
1698
1699 extern char *optarg;
1700 extern int optind;
1701 extern int opterr;
1702 extern char *version_string;
1703 \f
1704 /* List of assembler pseudo ops and beginning sequences that need
1705 special actions. Someday, this should be a hash table, and such,
1706 but for now a linear list of names and calls to memcmp will
1707 do...... */
1708
1709 typedef struct _pseudo_ops {
1710 const char *name; /* pseudo-op in ascii */
1711 int len; /* length of name to compare */
1712 void (*func) __proto((const char *)); /* function to handle line */
1713 } pseudo_ops_t;
1714
1715 static pseudo_ops_t pseudo_ops[] = {
1716 { "#.def", sizeof("#.def")-1, parse_def },
1717 { "#.begin", sizeof("#.begin")-1, parse_begin },
1718 { "#.bend", sizeof("#.bend")-1, parse_bend },
1719 { ".end", sizeof(".end")-1, parse_end },
1720 { ".ent", sizeof(".ent")-1, parse_ent },
1721 { ".file", sizeof(".file")-1, parse_file },
1722 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1723 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1724 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1725 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1726 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1727 };
1728
1729 \f
1730 /* Add a page to a varray object. */
1731
1732 STATIC void
1733 add_varray_page (vp)
1734 varray_t *vp; /* varray to add page to */
1735 {
1736 vlinks_t *new_links = allocate_vlinks ();
1737
1738 #ifdef MALLOC_CHECK
1739 if (vp->object_size > 1)
1740 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1741 else
1742 #endif
1743 new_links->datum = allocate_page ();
1744
1745 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1746 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1747
1748 new_links->start_index = vp->num_allocated;
1749 vp->objects_last_page = 0;
1750
1751 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1752 vp->first = vp->last = new_links;
1753 else
1754 { /* 2nd or greater allocation */
1755 new_links->prev = vp->last;
1756 vp->last->next = new_links;
1757 vp->last = new_links;
1758 }
1759 }
1760
1761 \f
1762 /* Compute hash code (from tree.c) */
1763
1764 #define HASHBITS 30
1765
1766 STATIC shash_t *
1767 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1768 const char *text; /* ptr to text to hash */
1769 Ptrdiff_t hash_len; /* length of the text */
1770 shash_t **hash_tbl; /* hash table */
1771 symint_t *ret_hash_index; /* ptr to store hash index */
1772 {
1773 register unsigned long hi;
1774 register Ptrdiff_t i;
1775 register shash_t *ptr;
1776 register int first_ch = *text;
1777
1778 hi = hash_len;
1779 for (i = 0; i < hash_len; i++)
1780 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1781
1782 hi &= (1 << HASHBITS) - 1;
1783 hi %= SHASH_SIZE;
1784
1785 if (ret_hash_index != (symint_t *) 0)
1786 *ret_hash_index = hi;
1787
1788 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1789 if ((symint_t) hash_len == ptr->len
1790 && first_ch == ptr->string[0]
1791 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1792 break;
1793
1794 return ptr;
1795 }
1796
1797 \f
1798 /* Add a string (and null pad) to one of the string tables. A
1799 consequence of hashing strings, is that we don't let strings
1800 cross page boundaries. The extra nulls will be ignored. */
1801
1802 STATIC symint_t
1803 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1804 varray_t *vp; /* string virtual array */
1805 shash_t **hash_tbl; /* ptr to hash table */
1806 const char *start; /* 1st byte in string */
1807 const char *end_p1; /* 1st byte after string */
1808 shash_t **ret_hash; /* return hash pointer */
1809 {
1810 register Ptrdiff_t len = end_p1 - start;
1811 register shash_t *hash_ptr;
1812 symint_t hi;
1813
1814 if (len >= (Ptrdiff_t) PAGE_USIZE)
1815 fatal ("String too big (%ld bytes)", (long) len);
1816
1817 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1818 if (hash_ptr == (shash_t *) 0)
1819 {
1820 register char *p;
1821
1822 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1823 {
1824 vp->num_allocated
1825 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1826 add_varray_page (vp);
1827 }
1828
1829 hash_ptr = allocate_shash ();
1830 hash_ptr->next = hash_tbl[hi];
1831 hash_tbl[hi] = hash_ptr;
1832
1833 hash_ptr->len = len;
1834 hash_ptr->indx = vp->num_allocated;
1835 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1836
1837 vp->objects_last_page += len+1;
1838 vp->num_allocated += len+1;
1839
1840 while (len-- > 0)
1841 *p++ = *start++;
1842
1843 *p = '\0';
1844 }
1845
1846 if (ret_hash != (shash_t **) 0)
1847 *ret_hash = hash_ptr;
1848
1849 return hash_ptr->indx;
1850 }
1851
1852 \f
1853 /* Add a local symbol. */
1854
1855 STATIC symint_t
1856 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1857 const char *str_start; /* first byte in string */
1858 const char *str_end_p1; /* first byte after string */
1859 st_t type; /* symbol type */
1860 sc_t storage; /* storage class */
1861 symint_t value; /* value of symbol */
1862 symint_t indx; /* index to local/aux. syms */
1863 {
1864 register symint_t ret;
1865 register SYMR *psym;
1866 register scope_t *pscope;
1867 register thead_t *ptag_head;
1868 register tag_t *ptag;
1869 register tag_t *ptag_next;
1870 register varray_t *vp = &cur_file_ptr->symbols;
1871 register int scope_delta = 0;
1872 shash_t *hash_ptr = (shash_t *) 0;
1873
1874 if (vp->objects_last_page == vp->objects_per_page)
1875 add_varray_page (vp);
1876
1877 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1878
1879 psym->value = value;
1880 psym->st = (unsigned) type;
1881 psym->sc = (unsigned) storage;
1882 psym->index = indx;
1883 psym->iss = (str_start == (const char *) 0)
1884 ? 0
1885 : add_string (&cur_file_ptr->strings,
1886 &cur_file_ptr->shash_head[0],
1887 str_start,
1888 str_end_p1,
1889 &hash_ptr);
1890
1891 ret = vp->num_allocated++;
1892
1893 if (MIPS_IS_STAB(psym))
1894 return ret;
1895
1896 /* Save the symbol within the hash table if this is a static
1897 item, and it has a name. */
1898 if (hash_ptr != (shash_t *) 0
1899 && (type == st_Global || type == st_Static || type == st_Label
1900 || type == st_Proc || type == st_StaticProc))
1901 hash_ptr->sym_ptr = psym;
1902
1903 /* push or pop a scope if appropriate. */
1904 switch (type)
1905 {
1906 default:
1907 break;
1908
1909 case st_File: /* beginning of file */
1910 case st_Proc: /* procedure */
1911 case st_StaticProc: /* static procedure */
1912 case st_Block: /* begin scope */
1913 pscope = allocate_scope ();
1914 pscope->prev = cur_file_ptr->cur_scope;
1915 pscope->lsym = psym;
1916 pscope->lnumber = ret;
1917 pscope->type = type;
1918 cur_file_ptr->cur_scope = pscope;
1919
1920 if (type != st_File)
1921 scope_delta = 1;
1922
1923 /* For every block type except file, struct, union, or
1924 enumeration blocks, push a level on the tag stack. We omit
1925 file types, so that tags can span file boundaries. */
1926 if (type != st_File && storage != sc_Info)
1927 {
1928 ptag_head = allocate_thead ();
1929 ptag_head->first_tag = 0;
1930 ptag_head->prev = cur_tag_head;
1931 cur_tag_head = ptag_head;
1932 }
1933 break;
1934
1935 case st_End:
1936 pscope = cur_file_ptr->cur_scope;
1937 if (pscope == (scope_t *)0)
1938 error ("internal error, too many st_End's");
1939
1940 else
1941 {
1942 st_t begin_type = (st_t) pscope->lsym->st;
1943
1944 if (begin_type != st_File)
1945 scope_delta = -1;
1946
1947 /* Except for file, structure, union, or enumeration end
1948 blocks remove all tags created within this scope. */
1949 if (begin_type != st_File && storage != sc_Info)
1950 {
1951 ptag_head = cur_tag_head;
1952 cur_tag_head = ptag_head->prev;
1953
1954 for (ptag = ptag_head->first_tag;
1955 ptag != (tag_t *) 0;
1956 ptag = ptag_next)
1957 {
1958 if (ptag->forward_ref != (forward_t *) 0)
1959 add_unknown_tag (ptag);
1960
1961 ptag_next = ptag->same_block;
1962 ptag->hash_ptr->tag_ptr = ptag->same_name;
1963 free_tag (ptag);
1964 }
1965
1966 free_thead (ptag_head);
1967 }
1968
1969 cur_file_ptr->cur_scope = pscope->prev;
1970 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1971
1972 if (storage != sc_Info)
1973 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1974
1975 if (begin_type == st_File || begin_type == st_Block)
1976 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1977
1978 /* Functions push two or more aux words as follows:
1979 1st word: index+1 of the end symbol
1980 2nd word: type of the function (plus any aux words needed).
1981 Also, tie the external pointer back to the function begin symbol. */
1982 else
1983 {
1984 symint_t type;
1985 pscope->lsym->index = add_aux_sym_symint (ret+1);
1986 type = add_aux_sym_tir (&last_func_type_info,
1987 hash_no,
1988 &cur_file_ptr->thash_head[0]);
1989 if (last_func_eptr)
1990 {
1991 last_func_eptr->ifd = cur_file_ptr->file_index;
1992
1993 /* The index for an external st_Proc symbol is the index
1994 of the st_Proc symbol in the local symbol table. */
1995 last_func_eptr->asym.index = psym->index;
1996 }
1997 }
1998
1999 free_scope (pscope);
2000 }
2001 }
2002
2003 cur_file_ptr->nested_scopes += scope_delta;
2004
2005 if (debug && type != st_File
2006 && (debug > 2 || type == st_Block || type == st_End
2007 || type == st_Proc || type == st_StaticProc))
2008 {
2009 const char *sc_str = sc_to_string (storage);
2010 const char *st_str = st_to_string (type);
2011 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2012
2013 fprintf (stderr,
2014 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2015 value, depth, sc_str);
2016
2017 if (str_start && str_end_p1 - str_start > 0)
2018 fprintf (stderr, " st= %-11s name= %.*s\n",
2019 st_str, (int) (str_end_p1 - str_start), str_start);
2020 else
2021 {
2022 Size_t len = strlen (st_str);
2023 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2024 }
2025 }
2026
2027 return ret;
2028 }
2029
2030 \f
2031 /* Add an external symbol. */
2032
2033 STATIC symint_t
2034 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2035 const char *str_start; /* first byte in string */
2036 const char *str_end_p1; /* first byte after string */
2037 st_t type; /* symbol type */
2038 sc_t storage; /* storage class */
2039 long value; /* value of symbol */
2040 symint_t indx; /* index to local/aux. syms */
2041 int ifd; /* file index */
2042 {
2043 register EXTR *psym;
2044 register varray_t *vp = &ext_symbols;
2045 shash_t *hash_ptr = (shash_t *) 0;
2046
2047 if (debug > 1)
2048 {
2049 const char *sc_str = sc_to_string (storage);
2050 const char *st_str = st_to_string (type);
2051
2052 fprintf (stderr,
2053 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2054 value, ifd, sc_str);
2055
2056 if (str_start && str_end_p1 - str_start > 0)
2057 fprintf (stderr, " st= %-11s name= %.*s\n",
2058 st_str, (int) (str_end_p1 - str_start), str_start);
2059 else
2060 fprintf (stderr, " st= %s\n", st_str);
2061 }
2062
2063 if (vp->objects_last_page == vp->objects_per_page)
2064 add_varray_page (vp);
2065
2066 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2067
2068 psym->ifd = ifd;
2069 psym->asym.value = value;
2070 psym->asym.st = (unsigned) type;
2071 psym->asym.sc = (unsigned) storage;
2072 psym->asym.index = indx;
2073 psym->asym.iss = (str_start == (const char *) 0)
2074 ? 0
2075 : add_string (&ext_strings,
2076 &ext_str_hash[0],
2077 str_start,
2078 str_end_p1,
2079 &hash_ptr);
2080
2081 hash_ptr->esym_ptr = psym;
2082 return vp->num_allocated++;
2083 }
2084
2085 \f
2086 /* Add an auxiliary symbol (passing a symint). */
2087
2088 STATIC symint_t
2089 add_aux_sym_symint (aux_word)
2090 symint_t aux_word; /* auxiliary information word */
2091 {
2092 register AUXU *aux_ptr;
2093 register efdr_t *file_ptr = cur_file_ptr;
2094 register varray_t *vp = &file_ptr->aux_syms;
2095
2096 if (vp->objects_last_page == vp->objects_per_page)
2097 add_varray_page (vp);
2098
2099 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2100 aux_ptr->isym = aux_word;
2101
2102 return vp->num_allocated++;
2103 }
2104
2105
2106 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2107
2108 STATIC symint_t
2109 add_aux_sym_rndx (file_index, sym_index)
2110 int file_index;
2111 symint_t sym_index;
2112 {
2113 register AUXU *aux_ptr;
2114 register efdr_t *file_ptr = cur_file_ptr;
2115 register varray_t *vp = &file_ptr->aux_syms;
2116
2117 if (vp->objects_last_page == vp->objects_per_page)
2118 add_varray_page (vp);
2119
2120 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2121 aux_ptr->rndx.rfd = file_index;
2122 aux_ptr->rndx.index = sym_index;
2123
2124 return vp->num_allocated++;
2125 }
2126
2127 \f
2128 /* Add an auxiliary symbol (passing the basic type and possibly
2129 type qualifiers). */
2130
2131 STATIC symint_t
2132 add_aux_sym_tir (t, state, hash_tbl)
2133 type_info_t *t; /* current type information */
2134 hash_state_t state; /* whether to hash type or not */
2135 thash_t **hash_tbl; /* pointer to hash table to use */
2136 {
2137 register AUXU *aux_ptr;
2138 register efdr_t *file_ptr = cur_file_ptr;
2139 register varray_t *vp = &file_ptr->aux_syms;
2140 static AUXU init_aux;
2141 symint_t ret;
2142 int i;
2143 AUXU aux;
2144
2145 aux = init_aux;
2146 aux.ti.bt = (int) t->basic_type;
2147 aux.ti.continued = 0;
2148 aux.ti.fBitfield = t->bitfield;
2149
2150 aux.ti.tq0 = (int) t->type_qualifiers[0];
2151 aux.ti.tq1 = (int) t->type_qualifiers[1];
2152 aux.ti.tq2 = (int) t->type_qualifiers[2];
2153 aux.ti.tq3 = (int) t->type_qualifiers[3];
2154 aux.ti.tq4 = (int) t->type_qualifiers[4];
2155 aux.ti.tq5 = (int) t->type_qualifiers[5];
2156
2157
2158 /* For anything that adds additional information, we must not hash,
2159 so check here, and reset our state. */
2160
2161 if (state != hash_no
2162 && (t->type_qualifiers[0] == tq_Array
2163 || t->type_qualifiers[1] == tq_Array
2164 || t->type_qualifiers[2] == tq_Array
2165 || t->type_qualifiers[3] == tq_Array
2166 || t->type_qualifiers[4] == tq_Array
2167 || t->type_qualifiers[5] == tq_Array
2168 || t->basic_type == bt_Struct
2169 || t->basic_type == bt_Union
2170 || t->basic_type == bt_Enum
2171 || t->bitfield
2172 || t->num_dims > 0))
2173 state = hash_no;
2174
2175 /* See if we can hash this type, and save some space, but some types
2176 can't be hashed (because they contain arrays or continuations),
2177 and others can be put into the hash list, but cannot use existing
2178 types because other aux entries precede this one. */
2179
2180 if (state != hash_no)
2181 {
2182 register thash_t *hash_ptr;
2183 register symint_t hi;
2184
2185 hi = aux.isym & ((1 << HASHBITS) - 1);
2186 hi %= THASH_SIZE;
2187
2188 for (hash_ptr = hash_tbl[hi];
2189 hash_ptr != (thash_t *) 0;
2190 hash_ptr = hash_ptr->next)
2191 {
2192 if (aux.isym == hash_ptr->type.isym)
2193 break;
2194 }
2195
2196 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2197 return hash_ptr->indx;
2198
2199 if (hash_ptr == (thash_t *) 0)
2200 {
2201 hash_ptr = allocate_thash ();
2202 hash_ptr->next = hash_tbl[hi];
2203 hash_ptr->type = aux;
2204 hash_ptr->indx = vp->num_allocated;
2205 hash_tbl[hi] = hash_ptr;
2206 }
2207 }
2208
2209 /* Everything is set up, add the aux symbol. */
2210 if (vp->objects_last_page == vp->objects_per_page)
2211 add_varray_page (vp);
2212
2213 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2214 *aux_ptr = aux;
2215
2216 ret = vp->num_allocated++;
2217
2218 /* Add bitfield length if it exists.
2219
2220 NOTE: Mips documentation claims bitfield goes at the end of the
2221 AUX record, but the DECstation compiler emits it here.
2222 (This would only make a difference for enum bitfields.)
2223
2224 Also note: We use the last size given since gcc may emit 2
2225 for an enum bitfield. */
2226
2227 if (t->bitfield)
2228 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2229
2230
2231 /* Add tag information if needed. Structure, union, and enum
2232 references add 2 aux symbols: a [file index, symbol index]
2233 pointer to the structure type, and the current file index. */
2234
2235 if (t->basic_type == bt_Struct
2236 || t->basic_type == bt_Union
2237 || t->basic_type == bt_Enum)
2238 {
2239 register symint_t file_index = t->tag_ptr->ifd;
2240 register symint_t sym_index = t->tag_ptr->indx;
2241
2242 if (t->unknown_tag)
2243 {
2244 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2245 (void) add_aux_sym_symint ((symint_t)-1);
2246 }
2247 else if (sym_index != indexNil)
2248 {
2249 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2250 (void) add_aux_sym_symint (file_index);
2251 }
2252 else
2253 {
2254 register forward_t *forward_ref = allocate_forward ();
2255
2256 forward_ref->type_ptr = aux_ptr;
2257 forward_ref->next = t->tag_ptr->forward_ref;
2258 t->tag_ptr->forward_ref = forward_ref;
2259
2260 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2261 forward_ref->index_ptr
2262 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2263
2264 (void) add_aux_sym_symint (file_index);
2265 forward_ref->ifd_ptr
2266 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2267 }
2268 }
2269
2270 /* Add information about array bounds if they exist. */
2271 for (i = 0; i < t->num_dims; i++)
2272 {
2273 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2274 cur_file_ptr->int_type);
2275
2276 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2277 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2278 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2279 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2280 ? 0
2281 : (t->sizes[i] * 8) / t->dimensions[i]);
2282 };
2283
2284 /* NOTE: Mips documentation claims that the bitfield width goes here.
2285 But it needs to be emitted earlier. */
2286
2287 return ret;
2288 }
2289
2290 \f
2291 /* Add a tag to the tag table (unless it already exists). */
2292
2293 STATIC tag_t *
2294 get_tag (tag_start, tag_end_p1, indx, basic_type)
2295 const char *tag_start; /* 1st byte of tag name */
2296 const char *tag_end_p1; /* 1st byte after tag name */
2297 symint_t indx; /* index of tag start block */
2298 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2299 {
2300 shash_t *hash_ptr;
2301 tag_t *tag_ptr;
2302 hash_ptr = hash_string (tag_start,
2303 tag_end_p1 - tag_start,
2304 &tag_hash[0],
2305 (symint_t *) 0);
2306
2307 if (hash_ptr != (shash_t *) 0
2308 && hash_ptr->tag_ptr != (tag_t *) 0)
2309 {
2310 tag_ptr = hash_ptr->tag_ptr;
2311 if (indx != indexNil)
2312 {
2313 tag_ptr->basic_type = basic_type;
2314 tag_ptr->ifd = cur_file_ptr->file_index;
2315 tag_ptr->indx = indx;
2316 }
2317 return tag_ptr;
2318 }
2319
2320 (void) add_string (&tag_strings,
2321 &tag_hash[0],
2322 tag_start,
2323 tag_end_p1,
2324 &hash_ptr);
2325
2326 tag_ptr = allocate_tag ();
2327 tag_ptr->forward_ref = (forward_t *) 0;
2328 tag_ptr->hash_ptr = hash_ptr;
2329 tag_ptr->same_name = hash_ptr->tag_ptr;
2330 tag_ptr->basic_type = basic_type;
2331 tag_ptr->indx = indx;
2332 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2333 tag_ptr->same_block = cur_tag_head->first_tag;
2334
2335 cur_tag_head->first_tag = tag_ptr;
2336 hash_ptr->tag_ptr = tag_ptr;
2337
2338 return tag_ptr;
2339 }
2340
2341 \f
2342 /* Add an unknown {struct, union, enum} tag. */
2343
2344 STATIC void
2345 add_unknown_tag (ptag)
2346 tag_t *ptag; /* pointer to tag information */
2347 {
2348 shash_t *hash_ptr = ptag->hash_ptr;
2349 char *name_start = hash_ptr->string;
2350 char *name_end_p1 = name_start + hash_ptr->len;
2351 forward_t *f_next = ptag->forward_ref;
2352 forward_t *f_cur;
2353 int sym_index;
2354 int file_index = cur_file_ptr->file_index;
2355
2356 if (debug > 1)
2357 {
2358 const char *agg_type = "{unknown aggregate type}";
2359 switch (ptag->basic_type)
2360 {
2361 case bt_Struct: agg_type = "struct"; break;
2362 case bt_Union: agg_type = "union"; break;
2363 case bt_Enum: agg_type = "enum"; break;
2364 default: break;
2365 }
2366
2367 fprintf (stderr, "unknown %s %.*s found\n",
2368 agg_type, (int) hash_ptr->len, name_start);
2369 }
2370
2371 sym_index = add_local_symbol (name_start,
2372 name_end_p1,
2373 st_Block,
2374 sc_Info,
2375 (symint_t) 0,
2376 (symint_t) 0);
2377
2378 (void) add_local_symbol (name_start,
2379 name_end_p1,
2380 st_End,
2381 sc_Info,
2382 (symint_t) 0,
2383 (symint_t) 0);
2384
2385 while (f_next != (forward_t *) 0)
2386 {
2387 f_cur = f_next;
2388 f_next = f_next->next;
2389
2390 f_cur->ifd_ptr->isym = file_index;
2391 f_cur->index_ptr->rndx.index = sym_index;
2392
2393 free_forward (f_cur);
2394 }
2395
2396 return;
2397 }
2398
2399 \f
2400 /* Add a procedure to the current file's list of procedures, and record
2401 this is the current procedure. If the assembler created a PDR for
2402 this procedure, use that to initialize the current PDR. */
2403
2404 STATIC void
2405 add_procedure (func_start, func_end_p1)
2406 const char *func_start; /* 1st byte of func name */
2407 const char *func_end_p1; /* 1st byte after func name */
2408 {
2409 register PDR *new_proc_ptr;
2410 register efdr_t *file_ptr = cur_file_ptr;
2411 register varray_t *vp = &file_ptr->procs;
2412 register symint_t value = 0;
2413 register st_t proc_type = st_Proc;
2414 register shash_t *shash_ptr = hash_string (func_start,
2415 func_end_p1 - func_start,
2416 &orig_str_hash[0],
2417 (symint_t *) 0);
2418
2419 if (debug)
2420 fputc ('\n', stderr);
2421
2422 if (vp->objects_last_page == vp->objects_per_page)
2423 add_varray_page (vp);
2424
2425 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2426
2427 vp->num_allocated++;
2428
2429
2430 /* Did the assembler create this procedure? If so, get the PDR information. */
2431 cur_oproc_ptr = (PDR *) 0;
2432 if (shash_ptr != (shash_t *) 0)
2433 {
2434 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2435 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2436
2437 if (old_proc_ptr != (PDR *) 0
2438 && sym_ptr != (SYMR *) 0
2439 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2440 {
2441 cur_oproc_begin = sym_ptr;
2442 cur_oproc_end = shash_ptr->end_ptr;
2443 value = sym_ptr->value;
2444
2445 cur_oproc_ptr = old_proc_ptr;
2446 proc_type = (st_t)sym_ptr->st;
2447 *new_proc_ptr = *old_proc_ptr; /* initialize */
2448 }
2449 }
2450
2451 if (cur_oproc_ptr == (PDR *) 0)
2452 error ("Did not find a PDR block for %.*s",
2453 (int) (func_end_p1 - func_start), func_start);
2454
2455 /* Determine the start of symbols. */
2456 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2457
2458 /* Push the start of the function. */
2459 (void) add_local_symbol (func_start, func_end_p1,
2460 proc_type, sc_Text,
2461 value,
2462 (symint_t) 0);
2463 }
2464
2465 \f
2466 /* Add a new filename, and set up all of the file relative
2467 virtual arrays (strings, symbols, aux syms, etc.). Record
2468 where the current file structure lives. */
2469
2470 STATIC void
2471 add_file (file_start, file_end_p1)
2472 const char *file_start; /* first byte in string */
2473 const char *file_end_p1; /* first byte after string */
2474 {
2475 static char zero_bytes[2] = { '\0', '\0' };
2476
2477 register Ptrdiff_t len = file_end_p1 - file_start;
2478 register int first_ch = *file_start;
2479 register efdr_t *file_ptr;
2480
2481 if (debug)
2482 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2483
2484 /* See if the file has already been created. */
2485 for (file_ptr = first_file;
2486 file_ptr != (efdr_t *) 0;
2487 file_ptr = file_ptr->next_file)
2488 {
2489 if (first_ch == file_ptr->name[0]
2490 && file_ptr->name[len] == '\0'
2491 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2492 {
2493 cur_file_ptr = file_ptr;
2494 break;
2495 }
2496 }
2497
2498 /* If this is a new file, create it. */
2499 if (file_ptr == (efdr_t *) 0)
2500 {
2501 if (file_desc.objects_last_page == file_desc.objects_per_page)
2502 add_varray_page (&file_desc);
2503
2504 file_ptr = cur_file_ptr
2505 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2506 *file_ptr = init_file;
2507
2508 file_ptr->file_index = file_desc.num_allocated++;
2509
2510 /* Allocate the string hash table. */
2511 file_ptr->shash_head = (shash_t **) allocate_page ();
2512
2513 /* Make sure 0 byte in string table is null */
2514 add_string (&file_ptr->strings,
2515 &file_ptr->shash_head[0],
2516 &zero_bytes[0],
2517 &zero_bytes[0],
2518 (shash_t **) 0);
2519
2520 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2521 fatal ("Filename goes over one page boundary.");
2522
2523 /* Push the start of the filename. We assume that the filename
2524 will be stored at string offset 1. */
2525 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2526 (symint_t) 0, (symint_t) 0);
2527 file_ptr->fdr.rss = 1;
2528 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2529 file_ptr->name_len = file_end_p1 - file_start;
2530
2531 /* Update the linked list of file descriptors. */
2532 *last_file_ptr = file_ptr;
2533 last_file_ptr = &file_ptr->next_file;
2534
2535 /* Add void & int types to the file (void should be first to catch
2536 errant 0's within the index fields). */
2537 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2538 hash_yes,
2539 &cur_file_ptr->thash_head[0]);
2540
2541 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2542 hash_yes,
2543 &cur_file_ptr->thash_head[0]);
2544 }
2545 }
2546
2547 \f
2548 /* Add a stream of random bytes to a varray. */
2549
2550 STATIC void
2551 add_bytes (vp, input_ptr, nitems)
2552 varray_t *vp; /* virtual array to add too */
2553 char *input_ptr; /* start of the bytes */
2554 Size_t nitems; /* # items to move */
2555 {
2556 register Size_t move_items;
2557 register Size_t move_bytes;
2558 register char *ptr;
2559
2560 while (nitems > 0)
2561 {
2562 if (vp->objects_last_page >= vp->objects_per_page)
2563 add_varray_page (vp);
2564
2565 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2566 move_items = vp->objects_per_page - vp->objects_last_page;
2567 if (move_items > nitems)
2568 move_items = nitems;
2569
2570 move_bytes = move_items * vp->object_size;
2571 nitems -= move_items;
2572
2573 if (move_bytes >= 32)
2574 {
2575 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2576 input_ptr += move_bytes;
2577 }
2578 else
2579 {
2580 while (move_bytes-- > 0)
2581 *ptr++ = *input_ptr++;
2582 }
2583 }
2584 }
2585
2586 \f
2587 /* Convert storage class to string. */
2588
2589 STATIC const char *
2590 sc_to_string(storage_class)
2591 sc_t storage_class;
2592 {
2593 switch(storage_class)
2594 {
2595 case sc_Nil: return "Nil,";
2596 case sc_Text: return "Text,";
2597 case sc_Data: return "Data,";
2598 case sc_Bss: return "Bss,";
2599 case sc_Register: return "Register,";
2600 case sc_Abs: return "Abs,";
2601 case sc_Undefined: return "Undefined,";
2602 case sc_CdbLocal: return "CdbLocal,";
2603 case sc_Bits: return "Bits,";
2604 case sc_CdbSystem: return "CdbSystem,";
2605 case sc_RegImage: return "RegImage,";
2606 case sc_Info: return "Info,";
2607 case sc_UserStruct: return "UserStruct,";
2608 case sc_SData: return "SData,";
2609 case sc_SBss: return "SBss,";
2610 case sc_RData: return "RData,";
2611 case sc_Var: return "Var,";
2612 case sc_Common: return "Common,";
2613 case sc_SCommon: return "SCommon,";
2614 case sc_VarRegister: return "VarRegister,";
2615 case sc_Variant: return "Variant,";
2616 case sc_SUndefined: return "SUndefined,";
2617 case sc_Init: return "Init,";
2618 case sc_Max: return "Max,";
2619 }
2620
2621 return "???,";
2622 }
2623
2624 \f
2625 /* Convert symbol type to string. */
2626
2627 STATIC const char *
2628 st_to_string(symbol_type)
2629 st_t symbol_type;
2630 {
2631 switch(symbol_type)
2632 {
2633 case st_Nil: return "Nil,";
2634 case st_Global: return "Global,";
2635 case st_Static: return "Static,";
2636 case st_Param: return "Param,";
2637 case st_Local: return "Local,";
2638 case st_Label: return "Label,";
2639 case st_Proc: return "Proc,";
2640 case st_Block: return "Block,";
2641 case st_End: return "End,";
2642 case st_Member: return "Member,";
2643 case st_Typedef: return "Typedef,";
2644 case st_File: return "File,";
2645 case st_RegReloc: return "RegReloc,";
2646 case st_Forward: return "Forward,";
2647 case st_StaticProc: return "StaticProc,";
2648 case st_Constant: return "Constant,";
2649 case st_Str: return "String,";
2650 case st_Number: return "Number,";
2651 case st_Expr: return "Expr,";
2652 case st_Type: return "Type,";
2653 case st_Max: return "Max,";
2654 }
2655
2656 return "???,";
2657 }
2658
2659 \f
2660 /* Read a line from standard input, and return the start of the buffer
2661 (which is grows if the line is too big). We split lines at the
2662 semi-colon, and return each logical line independently. */
2663
2664 STATIC char *
2665 read_line __proto((void))
2666 {
2667 static int line_split_p = 0;
2668 register int string_p = 0;
2669 register int comment_p = 0;
2670 register int ch;
2671 register char *ptr;
2672
2673 if (cur_line_start == (char *) 0)
2674 { /* allocate initial page */
2675 cur_line_start = (char *) allocate_page ();
2676 cur_line_alloc = PAGE_SIZE;
2677 }
2678
2679 if (!line_split_p)
2680 line_number++;
2681
2682 line_split_p = 0;
2683 cur_line_nbytes = 0;
2684
2685 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2686 {
2687 if (++cur_line_nbytes >= cur_line_alloc-1)
2688 {
2689 register int num_pages = cur_line_alloc / PAGE_SIZE;
2690 register char *old_buffer = cur_line_start;
2691
2692 cur_line_alloc += PAGE_SIZE;
2693 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2694 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2695
2696 ptr = cur_line_start + cur_line_nbytes - 1;
2697 }
2698
2699 if (ch == '\n')
2700 {
2701 *ptr++ = '\n';
2702 *ptr = '\0';
2703 cur_line_ptr = cur_line_start;
2704 return cur_line_ptr;
2705 }
2706
2707 else if (ch == '\0')
2708 error ("Null character found in input");
2709
2710 else if (!comment_p)
2711 {
2712 if (ch == '"')
2713 string_p = !string_p;
2714
2715 else if (ch == '#')
2716 comment_p++;
2717
2718 else if (ch == ';' && !string_p)
2719 {
2720 line_split_p = 1;
2721 *ptr++ = '\n';
2722 *ptr = '\0';
2723 cur_line_ptr = cur_line_start;
2724 return cur_line_ptr;
2725 }
2726 }
2727 }
2728
2729 if (ferror (stdin))
2730 pfatal_with_name (input_name);
2731
2732 cur_line_ptr = (char *) 0;
2733 return (char *) 0;
2734 }
2735
2736 \f
2737 /* Parse #.begin directives which have a label as the first argument
2738 which gives the location of the start of the block. */
2739
2740 STATIC void
2741 parse_begin (start)
2742 const char *start; /* start of directive */
2743 {
2744 const char *end_p1; /* end of label */
2745 int ch;
2746 shash_t *hash_ptr; /* hash pointer to lookup label */
2747
2748 if (cur_file_ptr == (efdr_t *) 0)
2749 {
2750 error ("#.begin directive without a preceding .file directive");
2751 return;
2752 }
2753
2754 if (cur_proc_ptr == (PDR *) 0)
2755 {
2756 error ("#.begin directive without a preceding .ent directive");
2757 return;
2758 }
2759
2760 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2761 ;
2762
2763 hash_ptr = hash_string (start,
2764 end_p1 - start,
2765 &orig_str_hash[0],
2766 (symint_t *) 0);
2767
2768 if (hash_ptr == (shash_t *) 0)
2769 {
2770 error ("Label %.*s not found for #.begin",
2771 (int) (end_p1 - start), start);
2772 return;
2773 }
2774
2775 if (cur_oproc_begin == (SYMR *) 0)
2776 {
2777 error ("Procedure table %.*s not found for #.begin",
2778 (int) (end_p1 - start), start);
2779 return;
2780 }
2781
2782 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2783 st_Block, sc_Text,
2784 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2785 (symint_t) 0);
2786 }
2787
2788 \f
2789 /* Parse #.bend directives which have a label as the first argument
2790 which gives the location of the end of the block. */
2791
2792 STATIC void
2793 parse_bend (start)
2794 const char *start; /* start of directive */
2795 {
2796 const char *end_p1; /* end of label */
2797 int ch;
2798 shash_t *hash_ptr; /* hash pointer to lookup label */
2799
2800 if (cur_file_ptr == (efdr_t *) 0)
2801 {
2802 error ("#.begin directive without a preceding .file directive");
2803 return;
2804 }
2805
2806 if (cur_proc_ptr == (PDR *) 0)
2807 {
2808 error ("#.bend directive without a preceding .ent directive");
2809 return;
2810 }
2811
2812 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2813 ;
2814
2815 hash_ptr = hash_string (start,
2816 end_p1 - start,
2817 &orig_str_hash[0],
2818 (symint_t *) 0);
2819
2820 if (hash_ptr == (shash_t *) 0)
2821 {
2822 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2823 return;
2824 }
2825
2826 if (cur_oproc_begin == (SYMR *) 0)
2827 {
2828 error ("Procedure table %.*s not found for #.bend",
2829 (int) (end_p1 - start), start);
2830 return;
2831 }
2832
2833 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2834 st_End, sc_Text,
2835 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2836 (symint_t) 0);
2837 }
2838
2839 \f
2840 /* Parse #.def directives, which are contain standard COFF subdirectives
2841 to describe the debugging format. These subdirectives include:
2842
2843 .scl specify storage class
2844 .val specify a value
2845 .endef specify end of COFF directives
2846 .type specify the type
2847 .size specify the size of an array
2848 .dim specify an array dimension
2849 .tag specify a tag for a struct, union, or enum. */
2850
2851 STATIC void
2852 parse_def (name_start)
2853 const char *name_start; /* start of directive */
2854 {
2855 const char *dir_start; /* start of current directive*/
2856 const char *dir_end_p1; /* end+1 of current directive*/
2857 const char *arg_start; /* start of current argument */
2858 const char *arg_end_p1; /* end+1 of current argument */
2859 const char *name_end_p1; /* end+1 of label */
2860 const char *tag_start = (const char *) 0; /* start of tag name */
2861 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2862 sc_t storage_class = sc_Nil;
2863 st_t symbol_type = st_Nil;
2864 type_info_t t;
2865 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2866 int is_function = 0; /* != 0 if function */
2867 symint_t value = 0;
2868 symint_t indx = cur_file_ptr->void_type;
2869 int error_line = 0;
2870 symint_t arg_number;
2871 symint_t temp_array[ N_TQ ];
2872 int arg_was_number;
2873 int ch, i;
2874 Ptrdiff_t len;
2875
2876 static int inside_enumeration = 0; /* is this an enumeration? */
2877
2878
2879 /* Initialize the type information. */
2880 t = type_info_init;
2881
2882
2883 /* Search for the end of the name being defined. */
2884 /* Allow spaces and such in names for G++ templates, which produce stabs
2885 that look like:
2886
2887 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2888
2889 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2890 ;
2891
2892 if (ch == '\0')
2893 {
2894 error_line = __LINE__;
2895 saber_stop ();
2896 goto bomb_out;
2897 }
2898
2899 /* Parse the remaining subdirectives now. */
2900 dir_start = name_end_p1+1;
2901 for (;;)
2902 {
2903 while ((ch = *dir_start) == ' ' || ch == '\t')
2904 ++dir_start;
2905
2906 if (ch != '.')
2907 {
2908 error_line = __LINE__;
2909 saber_stop ();
2910 goto bomb_out;
2911 }
2912
2913 /* Are we done? */
2914 if (dir_start[1] == 'e'
2915 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2916 break;
2917
2918 /* Pick up the subdirective now */
2919 for (dir_end_p1 = dir_start+1;
2920 (ch = *dir_end_p1) != ' ' && ch != '\t';
2921 dir_end_p1++)
2922 {
2923 if (ch == '\0' || ISSPACE (ch))
2924 {
2925 error_line = __LINE__;
2926 saber_stop ();
2927 goto bomb_out;
2928 }
2929 }
2930
2931 /* Pick up the subdirective argument now. */
2932 arg_was_number = arg_number = 0;
2933 arg_end_p1 = (const char *) 0;
2934 arg_start = dir_end_p1+1;
2935 ch = *arg_start;
2936 while (ch == ' ' || ch == '\t')
2937 ch = *++arg_start;
2938
2939 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2940 {
2941 int ch2;
2942 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2943 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2944 arg_was_number++;
2945 }
2946
2947 else if (ch == '\0' || ISSPACE (ch))
2948 {
2949 error_line = __LINE__;
2950 saber_stop ();
2951 goto bomb_out;
2952 }
2953
2954 if (!arg_was_number)
2955 {
2956 /* Allow spaces and such in names for G++ templates. */
2957 for (arg_end_p1 = arg_start+1;
2958 (ch = *arg_end_p1) != ';' && ch != '\0';
2959 arg_end_p1++)
2960 ;
2961
2962 if (ch == '\0')
2963 {
2964 error_line = __LINE__;
2965 saber_stop ();
2966 goto bomb_out;
2967 }
2968 }
2969
2970 /* Classify the directives now. */
2971 len = dir_end_p1 - dir_start;
2972 switch (dir_start[1])
2973 {
2974 default:
2975 error_line = __LINE__;
2976 saber_stop ();
2977 goto bomb_out;
2978
2979 case 'd':
2980 if (len == sizeof (".dim")-1
2981 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2982 && arg_was_number)
2983 {
2984 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2985
2986 *t_ptr = arg_number;
2987 while (*arg_end_p1 == ',' && arg_was_number)
2988 {
2989 arg_start = arg_end_p1+1;
2990 ch = *arg_start;
2991 while (ch == ' ' || ch == '\t')
2992 ch = *++arg_start;
2993
2994 arg_was_number = 0;
2995 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2996 {
2997 int ch2;
2998 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2999 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3000 arg_was_number++;
3001
3002 if (t_ptr == &temp_array[0])
3003 {
3004 error_line = __LINE__;
3005 saber_stop ();
3006 goto bomb_out;
3007 }
3008
3009 *--t_ptr = arg_number;
3010 }
3011 }
3012
3013 /* Reverse order of dimensions. */
3014 while (t_ptr <= &temp_array[ N_TQ-1 ])
3015 {
3016 if (t.num_dims >= N_TQ-1)
3017 {
3018 error_line = __LINE__;
3019 saber_stop ();
3020 goto bomb_out;
3021 }
3022
3023 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3024 }
3025 break;
3026 }
3027 else
3028 {
3029 error_line = __LINE__;
3030 saber_stop ();
3031 goto bomb_out;
3032 }
3033
3034
3035 case 's':
3036 if (len == sizeof (".scl")-1
3037 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3038 && arg_was_number
3039 && arg_number < ((symint_t) C_MAX))
3040 {
3041 /* If the symbol is a static or external, we have
3042 already gotten the appropriate type and class, so
3043 make sure we don't override those values. This is
3044 needed because there are some type and classes that
3045 are not in COFF, such as short data, etc. */
3046 if (symbol_type == st_Nil)
3047 {
3048 symbol_type = map_coff_sym_type[arg_number];
3049 storage_class = map_coff_storage [arg_number];
3050 }
3051 break;
3052 }
3053
3054 else if (len == sizeof (".size")-1
3055 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3056 && arg_was_number)
3057 {
3058 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3059
3060 *t_ptr = arg_number;
3061 while (*arg_end_p1 == ',' && arg_was_number)
3062 {
3063 arg_start = arg_end_p1+1;
3064 ch = *arg_start;
3065 while (ch == ' ' || ch == '\t')
3066 ch = *++arg_start;
3067
3068 arg_was_number = 0;
3069 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3070 {
3071 int ch2;
3072 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3073 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3074 arg_was_number++;
3075
3076 if (t_ptr == &temp_array[0])
3077 {
3078 error_line = __LINE__;
3079 saber_stop ();
3080 goto bomb_out;
3081 }
3082
3083 *--t_ptr = arg_number;
3084 }
3085 }
3086
3087 /* Reverse order of sizes. */
3088 while (t_ptr <= &temp_array[ N_TQ-1 ])
3089 {
3090 if (t.num_sizes >= N_TQ-1)
3091 {
3092 error_line = __LINE__;
3093 saber_stop ();
3094 goto bomb_out;
3095 }
3096
3097 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3098 }
3099 break;
3100 }
3101
3102 else
3103 {
3104 error_line = __LINE__;
3105 saber_stop ();
3106 goto bomb_out;
3107 }
3108
3109
3110 case 't':
3111 if (len == sizeof (".type")-1
3112 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3113 && arg_was_number)
3114 {
3115 tq_t *tq_ptr = &t.type_qualifiers[0];
3116
3117 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3118 t.basic_type = map_coff_types [(int)t.orig_type];
3119 for (i = N_TQ-1; i >= 0; i--)
3120 {
3121 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3122 & N_TMASK);
3123
3124 if (dt != (int)DT_NON)
3125 *tq_ptr++ = map_coff_derived_type [dt];
3126 }
3127
3128 /* If this is a function, ignore it, so that we don't get
3129 two entries (one from the .ent, and one for the .def
3130 that precedes it). Save the type information so that
3131 the end block can properly add it after the begin block
3132 index. For MIPS knows what reason, we must strip off
3133 the function type at this point. */
3134 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3135 {
3136 is_function = 1;
3137 tq_ptr[-1] = tq_Nil;
3138 }
3139
3140 break;
3141 }
3142
3143 else if (len == sizeof (".tag")-1
3144 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3145 {
3146 tag_start = arg_start;
3147 tag_end_p1 = arg_end_p1;
3148 break;
3149 }
3150
3151 else
3152 {
3153 error_line = __LINE__;
3154 saber_stop ();
3155 goto bomb_out;
3156 }
3157
3158
3159 case 'v':
3160 if (len == sizeof (".val")-1
3161 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3162 {
3163 if (arg_was_number)
3164 value = arg_number;
3165
3166 /* If the value is not an integer value, it must be the
3167 name of a static or global item. Look up the name in
3168 the original symbol table to pick up the storage
3169 class, symbol type, etc. */
3170 else
3171 {
3172 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3173 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3174
3175 ext_hash_ptr = hash_string (arg_start,
3176 arg_end_p1 - arg_start,
3177 &ext_str_hash[0],
3178 (symint_t *) 0);
3179
3180 if (ext_hash_ptr != (shash_t *) 0
3181 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3182 eptr = ext_hash_ptr->esym_ptr;
3183
3184 orig_hash_ptr = hash_string (arg_start,
3185 arg_end_p1 - arg_start,
3186 &orig_str_hash[0],
3187 (symint_t *) 0);
3188
3189 if ((orig_hash_ptr == (shash_t *) 0
3190 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3191 && eptr == (EXTR *) 0)
3192 {
3193 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3194 (int) (arg_end_p1 - arg_start),
3195 arg_start);
3196 value = 0;
3197 }
3198 else
3199 {
3200 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3201 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3202 ? orig_hash_ptr->sym_ptr
3203 : &eptr->asym;
3204
3205 symbol_type = (st_t) ptr->st;
3206 storage_class = (sc_t) ptr->sc;
3207 value = ptr->value;
3208 }
3209 }
3210 break;
3211 }
3212 else
3213 {
3214 error_line = __LINE__;
3215 saber_stop ();
3216 goto bomb_out;
3217 }
3218 }
3219
3220 /* Set up to find next directive. */
3221 dir_start = arg_end_p1 + 1;
3222 }
3223
3224
3225 if (storage_class == sc_Bits)
3226 {
3227 t.bitfield = 1;
3228 t.extra_sizes = 1;
3229 }
3230 else
3231 t.extra_sizes = 0;
3232
3233 if (t.num_dims > 0)
3234 {
3235 int num_real_sizes = t.num_sizes - t.extra_sizes;
3236 int diff = t.num_dims - num_real_sizes;
3237 int i = t.num_dims - 1;
3238 int j;
3239
3240 if (num_real_sizes != 1 || diff < 0)
3241 {
3242 error_line = __LINE__;
3243 saber_stop ();
3244 goto bomb_out;
3245 }
3246
3247 /* If this is an array, make sure the same number of dimensions
3248 and sizes were passed, creating extra sizes for multiply
3249 dimensioned arrays if not passed. */
3250
3251 if (diff)
3252 {
3253 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3254 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3255
3256 t.num_sizes = i + 1;
3257 for ( i--; i >= 0; i-- )
3258 {
3259 if (t.dimensions[ i+1 ])
3260 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3261 else
3262 t.sizes[ i ] = t.sizes[ i+1 ];
3263 }
3264 }
3265 }
3266
3267 /* Except for enumeration members & begin/ending of scopes, put the
3268 type word in the aux. symbol table. */
3269
3270 if (symbol_type == st_Block || symbol_type == st_End)
3271 indx = 0;
3272
3273 else if (inside_enumeration)
3274 indx = cur_file_ptr->void_type;
3275
3276 else
3277 {
3278 if (t.basic_type == bt_Struct
3279 || t.basic_type == bt_Union
3280 || t.basic_type == bt_Enum)
3281 {
3282 if (tag_start == (char *) 0)
3283 {
3284 error ("No tag specified for %.*s",
3285 (int) (name_end_p1 - name_start),
3286 name_start);
3287 return;
3288 }
3289
3290 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3291 t.basic_type);
3292 }
3293
3294 if (is_function)
3295 {
3296 last_func_type_info = t;
3297 last_func_eptr = eptr;
3298 return;
3299 }
3300
3301 indx = add_aux_sym_tir (&t,
3302 hash_yes,
3303 &cur_file_ptr->thash_head[0]);
3304 }
3305
3306
3307 /* If this is an external or static symbol, update the appropriate
3308 external symbol. */
3309
3310 if (eptr != (EXTR *) 0
3311 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3312 {
3313 eptr->ifd = cur_file_ptr->file_index;
3314 eptr->asym.index = indx;
3315 }
3316
3317
3318 /* Do any last minute adjustments that are necessary. */
3319 switch (symbol_type)
3320 {
3321 default:
3322 break;
3323
3324
3325 /* For the beginning of structs, unions, and enumerations, the
3326 size info needs to be passed in the value field. */
3327
3328 case st_Block:
3329 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3330 {
3331 error_line = __LINE__;
3332 saber_stop ();
3333 goto bomb_out;
3334 }
3335
3336 else
3337 value = t.sizes[0];
3338
3339 inside_enumeration = (t.orig_type == T_ENUM);
3340 break;
3341
3342
3343 /* For the end of structs, unions, and enumerations, omit the
3344 name which is always ".eos". This needs to be done last, so
3345 that any error reporting above gives the correct name. */
3346
3347 case st_End:
3348 name_start = name_end_p1 = (const char *) 0;
3349 value = inside_enumeration = 0;
3350 break;
3351
3352
3353 /* Members of structures and unions that aren't bitfields, need
3354 to adjust the value from a byte offset to a bit offset.
3355 Members of enumerations do not have the value adjusted, and
3356 can be distinguished by indx == indexNil. For enumerations,
3357 update the maximum enumeration value. */
3358
3359 case st_Member:
3360 if (!t.bitfield && !inside_enumeration)
3361 value *= 8;
3362
3363 break;
3364 }
3365
3366
3367 /* Add the symbol, except for global symbols outside of functions,
3368 for which the external symbol table is fine enough. */
3369
3370 if (eptr == (EXTR *) 0
3371 || eptr->asym.st == (int)st_Nil
3372 || cur_proc_ptr != (PDR *) 0)
3373 {
3374 symint_t isym = add_local_symbol (name_start, name_end_p1,
3375 symbol_type, storage_class,
3376 value,
3377 indx);
3378
3379 /* deal with struct, union, and enum tags. */
3380 if (symbol_type == st_Block)
3381 {
3382 /* Create or update the tag information. */
3383 tag_t *tag_ptr = get_tag (name_start,
3384 name_end_p1,
3385 isym,
3386 t.basic_type);
3387
3388 /* If there are any forward references, fill in the appropriate
3389 file and symbol indexes. */
3390
3391 symint_t file_index = cur_file_ptr->file_index;
3392 forward_t *f_next = tag_ptr->forward_ref;
3393 forward_t *f_cur;
3394
3395 while (f_next != (forward_t *) 0)
3396 {
3397 f_cur = f_next;
3398 f_next = f_next->next;
3399
3400 f_cur->ifd_ptr->isym = file_index;
3401 f_cur->index_ptr->rndx.index = isym;
3402
3403 free_forward (f_cur);
3404 }
3405
3406 tag_ptr->forward_ref = (forward_t *) 0;
3407 }
3408 }
3409
3410 /* Normal return */
3411 return;
3412
3413 /* Error return, issue message. */
3414 bomb_out:
3415 if (error_line)
3416 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3417 else
3418 error ("compiler error, badly formed #.def");
3419
3420 return;
3421 }
3422
3423 \f
3424 /* Parse .end directives. */
3425
3426 STATIC void
3427 parse_end (start)
3428 const char *start; /* start of directive */
3429 {
3430 register const char *start_func, *end_func_p1;
3431 register int ch;
3432 register symint_t value;
3433 register FDR *orig_fdr;
3434
3435 if (cur_file_ptr == (efdr_t *) 0)
3436 {
3437 error (".end directive without a preceding .file directive");
3438 return;
3439 }
3440
3441 if (cur_proc_ptr == (PDR *) 0)
3442 {
3443 error (".end directive without a preceding .ent directive");
3444 return;
3445 }
3446
3447 /* Get the function name, skipping whitespace. */
3448 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3449 ;
3450
3451 ch = *start_func;
3452 if (!IS_ASM_IDENT (ch))
3453 {
3454 error (".end directive has no name");
3455 return;
3456 }
3457
3458 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3459 ;
3460
3461
3462 /* Get the value field for creating the end from the original object
3463 file (which we find by locating the procedure start, and using the
3464 pointer to the end+1 block and backing up. The index points to a
3465 two word aux. symbol, whose first word is the index of the end
3466 symbol, and the second word is the type of the function return
3467 value. */
3468
3469 orig_fdr = cur_file_ptr->orig_fdr;
3470 value = 0;
3471 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3472 value = cur_oproc_end->value;
3473
3474 else
3475 error ("Cannot find .end block for %.*s",
3476 (int) (end_func_p1 - start_func), start_func);
3477
3478 (void) add_local_symbol (start_func, end_func_p1,
3479 st_End, sc_Text,
3480 value,
3481 (symint_t) 0);
3482
3483 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3484 }
3485
3486 \f
3487 /* Parse .ent directives. */
3488
3489 STATIC void
3490 parse_ent (start)
3491 const char *start; /* start of directive */
3492 {
3493 register const char *start_func, *end_func_p1;
3494 register int ch;
3495
3496 if (cur_file_ptr == (efdr_t *) 0)
3497 {
3498 error (".ent directive without a preceding .file directive");
3499 return;
3500 }
3501
3502 if (cur_proc_ptr != (PDR *) 0)
3503 {
3504 error ("second .ent directive found before .end directive");
3505 return;
3506 }
3507
3508 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3509 ;
3510
3511 ch = *start_func;
3512 if (!IS_ASM_IDENT (ch))
3513 {
3514 error (".ent directive has no name");
3515 return;
3516 }
3517
3518 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3519 ;
3520
3521 (void) add_procedure (start_func, end_func_p1);
3522 }
3523
3524 \f
3525 /* Parse .file directives. */
3526
3527 STATIC void
3528 parse_file (start)
3529 const char *start; /* start of directive */
3530 {
3531 char *p;
3532 register char *start_name, *end_name_p1;
3533
3534 (void) strtol (start, &p, 0);
3535 if (start == p
3536 || (start_name = local_index (p, '"')) == (char *) 0
3537 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3538 {
3539 error ("Invalid .file directive");
3540 return;
3541 }
3542
3543 if (cur_proc_ptr != (PDR *) 0)
3544 {
3545 error ("No way to handle .file within .ent/.end section");
3546 return;
3547 }
3548
3549 add_file (start_name, end_name_p1);
3550 }
3551
3552 \f
3553 /* Make sure the @stabs symbol is emitted. */
3554
3555 static void
3556 mark_stabs (start)
3557 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3558 {
3559 if (!stabs_seen)
3560 {
3561 /* Add a dummy @stabs symbol. */
3562 stabs_seen = 1;
3563 (void) add_local_symbol (stabs_symbol,
3564 stabs_symbol + sizeof (stabs_symbol),
3565 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3566
3567 }
3568 }
3569
3570 \f
3571 /* Parse .stabs directives.
3572
3573 .stabs directives have five fields:
3574 "string" a string, encoding the type information.
3575 code a numeric code, defined in <stab.h>
3576 0 a zero
3577 0 a zero or line number
3578 value a numeric value or an address.
3579
3580 If the value is relocatable, we transform this into:
3581 iss points as an index into string space
3582 value value from lookup of the name
3583 st st from lookup of the name
3584 sc sc from lookup of the name
3585 index code|CODE_MASK
3586
3587 If the value is not relocatable, we transform this into:
3588 iss points as an index into string space
3589 value value
3590 st st_Nil
3591 sc sc_Nil
3592 index code|CODE_MASK
3593
3594 .stabn directives have four fields (string is null):
3595 code a numeric code, defined in <stab.h>
3596 0 a zero
3597 0 a zero or a line number
3598 value a numeric value or an address. */
3599
3600 STATIC void
3601 parse_stabs_common (string_start, string_end, rest)
3602 const char *string_start; /* start of string or NULL */
3603 const char *string_end; /* end+1 of string or NULL */
3604 const char *rest; /* rest of the directive. */
3605 {
3606 efdr_t *save_file_ptr = cur_file_ptr;
3607 symint_t code;
3608 symint_t value;
3609 char *p;
3610 st_t st;
3611 sc_t sc;
3612 int ch;
3613
3614 if (stabs_seen == 0)
3615 mark_stabs ("");
3616
3617 /* Read code from stabs. */
3618 if (!ISDIGIT (*rest))
3619 {
3620 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3621 return;
3622 }
3623
3624 code = strtol (rest, &p, 0);
3625
3626 /* Line number stabs are handled differently, since they have two values,
3627 the line number and the address of the label. We use the index field
3628 (aka code) to hold the line number, and the value field to hold the
3629 address. The symbol type is st_Label, which should be different from
3630 the other stabs, so that gdb can recognize it. */
3631
3632 if (code == (int)N_SLINE)
3633 {
3634 SYMR *sym_ptr, dummy_symr;
3635 shash_t *shash_ptr;
3636
3637 /* Skip ,0, */
3638 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3639 {
3640 error ("Invalid line number .stabs/.stabn directive");
3641 return;
3642 }
3643
3644 code = strtol (p+3, &p, 0);
3645 ch = *++p;
3646 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3647 {
3648 error ("Invalid line number .stabs/.stabn directive");
3649 return;
3650 }
3651
3652 dummy_symr.index = code;
3653 if (dummy_symr.index != code)
3654 {
3655 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3656 code);
3657
3658 return;
3659 }
3660
3661 shash_ptr = hash_string (p,
3662 strlen (p) - 1,
3663 &orig_str_hash[0],
3664 (symint_t *) 0);
3665
3666 if (shash_ptr == (shash_t *) 0
3667 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3668 {
3669 error ("Invalid .stabs/.stabn directive, value not found");
3670 return;
3671 }
3672
3673 if ((st_t) sym_ptr->st != st_Label)
3674 {
3675 error ("Invalid line number .stabs/.stabn directive");
3676 return;
3677 }
3678
3679 st = st_Label;
3680 sc = (sc_t) sym_ptr->sc;
3681 value = sym_ptr->value;
3682 }
3683 else
3684 {
3685 /* Skip ,<num>,<num>, */
3686 if (*p++ != ',')
3687 goto failure;
3688 for (; ISDIGIT (*p); p++)
3689 ;
3690 if (*p++ != ',')
3691 goto failure;
3692 for (; ISDIGIT (*p); p++)
3693 ;
3694 if (*p++ != ',')
3695 goto failure;
3696 ch = *p;
3697 if (!IS_ASM_IDENT (ch) && ch != '-')
3698 {
3699 failure:
3700 error ("Invalid .stabs/.stabn directive, bad character");
3701 return;
3702 }
3703
3704 if (ISDIGIT (ch) || ch == '-')
3705 {
3706 st = st_Nil;
3707 sc = sc_Nil;
3708 value = strtol (p, &p, 0);
3709 if (*p != '\n')
3710 {
3711 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3712 return;
3713 }
3714 }
3715 else if (!IS_ASM_IDENT (ch))
3716 {
3717 error ("Invalid .stabs/.stabn directive, bad character");
3718 return;
3719 }
3720 else
3721 {
3722 SYMR *sym_ptr;
3723 shash_t *shash_ptr;
3724 const char *start, *end_p1;
3725
3726 start = p;
3727 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3728 {
3729 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3730 end_p1 = start + strlen(start) - 1;
3731 }
3732
3733 shash_ptr = hash_string (start,
3734 end_p1 - start,
3735 &orig_str_hash[0],
3736 (symint_t *) 0);
3737
3738 if (shash_ptr == (shash_t *) 0
3739 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3740 {
3741 shash_ptr = hash_string (start,
3742 end_p1 - start,
3743 &ext_str_hash[0],
3744 (symint_t *) 0);
3745
3746 if (shash_ptr == (shash_t *) 0
3747 || shash_ptr->esym_ptr == (EXTR *) 0)
3748 {
3749 error ("Invalid .stabs/.stabn directive, value not found");
3750 return;
3751 }
3752 else
3753 sym_ptr = &(shash_ptr->esym_ptr->asym);
3754 }
3755
3756 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3757 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3758 {
3759 sc = scNil;
3760 st = stNil;
3761 }
3762 else
3763 {
3764 sc = (sc_t) sym_ptr->sc;
3765 st = (st_t) sym_ptr->st;
3766 }
3767 value = sym_ptr->value;
3768
3769 ch = *end_p1++;
3770 if (ch != '\n')
3771 {
3772 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3773 || ((ch != '+') && (ch != '-')))
3774 {
3775 error ("Invalid .stabs/.stabn directive, badly formed value");
3776 return;
3777 }
3778 if (ch == '+')
3779 value += strtol (end_p1, &p, 0);
3780 else if (ch == '-')
3781 value -= strtol (end_p1, &p, 0);
3782
3783 if (*p != '\n')
3784 {
3785 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3786 return;
3787 }
3788 }
3789 }
3790 code = MIPS_MARK_STAB(code);
3791 }
3792
3793 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3794 /* Restore normal file type. */
3795 cur_file_ptr = save_file_ptr;
3796 }
3797
3798
3799 STATIC void
3800 parse_stabs (start)
3801 const char *start; /* start of directive */
3802 {
3803 const char *end = local_index (start+1, '"');
3804
3805 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3806 {
3807 error ("Invalid .stabs directive, no string");
3808 return;
3809 }
3810
3811 parse_stabs_common (start+1, end, end+2);
3812 }
3813
3814
3815 STATIC void
3816 parse_stabn (start)
3817 const char *start; /* start of directive */
3818 {
3819 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3820 }
3821
3822 \f
3823 /* Parse the input file, and write the lines to the output file
3824 if needed. */
3825
3826 STATIC void
3827 parse_input __proto((void))
3828 {
3829 register char *p;
3830 register Size_t i;
3831 register thead_t *ptag_head;
3832 register tag_t *ptag;
3833 register tag_t *ptag_next;
3834
3835 if (debug)
3836 fprintf (stderr, "\tinput\n");
3837
3838 /* Add a dummy scope block around the entire compilation unit for
3839 structures defined outside of blocks. */
3840 ptag_head = allocate_thead ();
3841 ptag_head->first_tag = 0;
3842 ptag_head->prev = cur_tag_head;
3843 cur_tag_head = ptag_head;
3844
3845 while ((p = read_line ()) != (char *) 0)
3846 {
3847 /* Skip leading blanks */
3848 while (ISSPACE ((unsigned char)*p))
3849 p++;
3850
3851 /* See if it's a directive we handle. If so, dispatch handler. */
3852 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3853 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3854 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3855 {
3856 p += pseudo_ops[i].len; /* skip to first argument */
3857 while (ISSPACE ((unsigned char)*p))
3858 p++;
3859
3860 (*pseudo_ops[i].func)( p );
3861 break;
3862 }
3863 }
3864
3865 /* Process any tags at global level. */
3866 ptag_head = cur_tag_head;
3867 cur_tag_head = ptag_head->prev;
3868
3869 for (ptag = ptag_head->first_tag;
3870 ptag != (tag_t *) 0;
3871 ptag = ptag_next)
3872 {
3873 if (ptag->forward_ref != (forward_t *) 0)
3874 add_unknown_tag (ptag);
3875
3876 ptag_next = ptag->same_block;
3877 ptag->hash_ptr->tag_ptr = ptag->same_name;
3878 free_tag (ptag);
3879 }
3880
3881 free_thead (ptag_head);
3882
3883 }
3884
3885 \f
3886 /* Update the global headers with the final offsets in preparation
3887 to write out the .T file. */
3888
3889 STATIC void
3890 update_headers __proto((void))
3891 {
3892 register symint_t i;
3893 register efdr_t *file_ptr;
3894
3895 /* Set up the symbolic header. */
3896 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3897 symbolic_header.magic = orig_sym_hdr.magic;
3898 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3899
3900 /* Set up global counts. */
3901 symbolic_header.issExtMax = ext_strings.num_allocated;
3902 symbolic_header.idnMax = dense_num.num_allocated;
3903 symbolic_header.ifdMax = file_desc.num_allocated;
3904 symbolic_header.iextMax = ext_symbols.num_allocated;
3905 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3906 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3907 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3908 symbolic_header.crfd = orig_sym_hdr.crfd;
3909
3910
3911 /* Loop through each file, figuring out how many local syms,
3912 line numbers, etc. there are. Also, put out end symbol
3913 for the filename. */
3914
3915 for (file_ptr = first_file;
3916 file_ptr != (efdr_t *) 0;
3917 file_ptr = file_ptr->next_file)
3918 {
3919 register SYMR *sym_start;
3920 register SYMR *sym;
3921 register SYMR *sym_end_p1;
3922 register FDR *fd_ptr = file_ptr->orig_fdr;
3923
3924 cur_file_ptr = file_ptr;
3925
3926 /* Copy st_Static symbols from the original local symbol table if
3927 they did not get added to the new local symbol table.
3928 This happens with stabs-in-ecoff or if the source file is
3929 compiled without debugging. */
3930 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3931 sym_end_p1 = sym_start + fd_ptr->csym;
3932 for (sym = sym_start; sym < sym_end_p1; sym++)
3933 {
3934 if ((st_t)sym->st == st_Static)
3935 {
3936 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3937 register Size_t len = strlen (str);
3938 register shash_t *hash_ptr;
3939
3940 /* Ignore internal labels. */
3941 if (str[0] == '$' && str[1] == 'L')
3942 continue;
3943 hash_ptr = hash_string (str,
3944 (Ptrdiff_t)len,
3945 &file_ptr->shash_head[0],
3946 (symint_t *) 0);
3947 if (hash_ptr == (shash_t *) 0)
3948 {
3949 (void) add_local_symbol (str, str + len,
3950 (st_t)sym->st, (sc_t)sym->sc,
3951 (symint_t)sym->value,
3952 (symint_t)indexNil);
3953 }
3954 }
3955 }
3956 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3957 st_End, sc_Text,
3958 (symint_t) 0,
3959 (symint_t) 0);
3960
3961 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3962 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3963 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3964
3965 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3966 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3967 symbolic_header.isymMax += file_ptr->fdr.csym;
3968
3969 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3970 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3971 symbolic_header.iauxMax += file_ptr->fdr.caux;
3972
3973 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3974 file_ptr->fdr.issBase = symbolic_header.issMax;
3975 symbolic_header.issMax += file_ptr->fdr.cbSs;
3976 }
3977
3978 #ifndef ALIGN_SYMTABLE_OFFSET
3979 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3980 #endif
3981
3982 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3983 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3984 if (i > 0)
3985 {
3986 symbolic_header.cbLineOffset = file_offset;
3987 file_offset += i;
3988 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3989 }
3990
3991 i = symbolic_header.ioptMax; /* optimization symbols */
3992 if (((long) i) > 0)
3993 {
3994 symbolic_header.cbOptOffset = file_offset;
3995 file_offset += i * sizeof (OPTR);
3996 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3997 }
3998
3999 i = symbolic_header.idnMax; /* dense numbers */
4000 if (i > 0)
4001 {
4002 symbolic_header.cbDnOffset = file_offset;
4003 file_offset += i * sizeof (DNR);
4004 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4005 }
4006
4007 i = symbolic_header.ipdMax; /* procedure tables */
4008 if (i > 0)
4009 {
4010 symbolic_header.cbPdOffset = file_offset;
4011 file_offset += i * sizeof (PDR);
4012 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4013 }
4014
4015 i = symbolic_header.isymMax; /* local symbols */
4016 if (i > 0)
4017 {
4018 symbolic_header.cbSymOffset = file_offset;
4019 file_offset += i * sizeof (SYMR);
4020 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4021 }
4022
4023 i = symbolic_header.iauxMax; /* aux syms. */
4024 if (i > 0)
4025 {
4026 symbolic_header.cbAuxOffset = file_offset;
4027 file_offset += i * sizeof (TIR);
4028 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4029 }
4030
4031 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4032 if (i > 0)
4033 {
4034 symbolic_header.cbSsOffset = file_offset;
4035 file_offset += i;
4036 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4037 }
4038
4039 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4040 if (i > 0)
4041 {
4042 symbolic_header.cbSsExtOffset = file_offset;
4043 file_offset += i;
4044 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4045 }
4046
4047 i = symbolic_header.ifdMax; /* file tables */
4048 if (i > 0)
4049 {
4050 symbolic_header.cbFdOffset = file_offset;
4051 file_offset += i * sizeof (FDR);
4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4053 }
4054
4055 i = symbolic_header.crfd; /* relative file descriptors */
4056 if (i > 0)
4057 {
4058 symbolic_header.cbRfdOffset = file_offset;
4059 file_offset += i * sizeof (symint_t);
4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4061 }
4062
4063 i = symbolic_header.iextMax; /* external symbols */
4064 if (i > 0)
4065 {
4066 symbolic_header.cbExtOffset = file_offset;
4067 file_offset += i * sizeof (EXTR);
4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4069 }
4070 }
4071
4072 \f
4073 /* Write out a varray at a given location. */
4074
4075 STATIC void
4076 write_varray (vp, offset, str)
4077 varray_t *vp; /* virtual array */
4078 off_t offset; /* offset to write varray to */
4079 const char *str; /* string to print out when tracing */
4080 {
4081 int num_write, sys_write;
4082 vlinks_t *ptr;
4083
4084 if (vp->num_allocated == 0)
4085 return;
4086
4087 if (debug)
4088 {
4089 fputs ("\twarray\tvp = ", stderr);
4090 fprintf (stderr, HOST_PTR_PRINTF, vp);
4091 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4092 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4093 }
4094
4095 if (file_offset != offset
4096 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4097 pfatal_with_name (object_name);
4098
4099 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4100 {
4101 num_write = (ptr->next == (vlinks_t *) 0)
4102 ? vp->objects_last_page * vp->object_size
4103 : vp->objects_per_page * vp->object_size;
4104
4105 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4106 if (sys_write <= 0)
4107 pfatal_with_name (object_name);
4108
4109 else if (sys_write != num_write)
4110 fatal ("Wrote %d bytes to %s, system returned %d",
4111 num_write,
4112 object_name,
4113 sys_write);
4114
4115 file_offset += num_write;
4116 }
4117 }
4118
4119 \f
4120 /* Write out the symbol table in the object file. */
4121
4122 STATIC void
4123 write_object __proto((void))
4124 {
4125 int sys_write;
4126 efdr_t *file_ptr;
4127 off_t offset;
4128
4129 if (debug)
4130 {
4131 fputs ("\n\twrite\tvp = ", stderr);
4132 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4133 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4134 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4135 }
4136
4137 sys_write = fwrite ((PTR_T) &symbolic_header,
4138 1,
4139 sizeof (symbolic_header),
4140 object_stream);
4141
4142 if (sys_write < 0)
4143 pfatal_with_name (object_name);
4144
4145 else if (sys_write != sizeof (symbolic_header))
4146 fatal ("Wrote %d bytes to %s, system returned %d",
4147 (int) sizeof (symbolic_header),
4148 object_name,
4149 sys_write);
4150
4151
4152 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4153
4154 if (symbolic_header.cbLine > 0) /* line numbers */
4155 {
4156 long sys_write;
4157
4158 if (file_offset != symbolic_header.cbLineOffset
4159 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4160 pfatal_with_name (object_name);
4161
4162 if (debug)
4163 {
4164 fputs ("\twrite\tvp = ", stderr);
4165 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4166 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4167 (long) symbolic_header.cbLineOffset,
4168 (long) symbolic_header.cbLine, "Line numbers");
4169 }
4170
4171 sys_write = fwrite ((PTR_T) orig_linenum,
4172 1,
4173 symbolic_header.cbLine,
4174 object_stream);
4175
4176 if (sys_write <= 0)
4177 pfatal_with_name (object_name);
4178
4179 else if (sys_write != symbolic_header.cbLine)
4180 fatal ("Wrote %ld bytes to %s, system returned %ld",
4181 (long) symbolic_header.cbLine,
4182 object_name,
4183 sys_write);
4184
4185 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4186 }
4187
4188 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4189 {
4190 long sys_write;
4191 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4192
4193 if (file_offset != symbolic_header.cbOptOffset
4194 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4195 pfatal_with_name (object_name);
4196
4197 if (debug)
4198 {
4199 fputs ("\twrite\tvp = ", stderr);
4200 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4201 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4202 (long) symbolic_header.cbOptOffset,
4203 num_write, "Optimizer symbols");
4204 }
4205
4206 sys_write = fwrite ((PTR_T) orig_opt_syms,
4207 1,
4208 num_write,
4209 object_stream);
4210
4211 if (sys_write <= 0)
4212 pfatal_with_name (object_name);
4213
4214 else if (sys_write != num_write)
4215 fatal ("Wrote %ld bytes to %s, system returned %ld",
4216 num_write,
4217 object_name,
4218 sys_write);
4219
4220 file_offset = symbolic_header.cbOptOffset + num_write;
4221 }
4222
4223 if (symbolic_header.idnMax > 0) /* dense numbers */
4224 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4225
4226 if (symbolic_header.ipdMax > 0) /* procedure tables */
4227 {
4228 offset = symbolic_header.cbPdOffset;
4229 for (file_ptr = first_file;
4230 file_ptr != (efdr_t *) 0;
4231 file_ptr = file_ptr->next_file)
4232 {
4233 write_varray (&file_ptr->procs, offset, "Procedure tables");
4234 offset = file_offset;
4235 }
4236 }
4237
4238 if (symbolic_header.isymMax > 0) /* local symbols */
4239 {
4240 offset = symbolic_header.cbSymOffset;
4241 for (file_ptr = first_file;
4242 file_ptr != (efdr_t *) 0;
4243 file_ptr = file_ptr->next_file)
4244 {
4245 write_varray (&file_ptr->symbols, offset, "Local symbols");
4246 offset = file_offset;
4247 }
4248 }
4249
4250 if (symbolic_header.iauxMax > 0) /* aux symbols */
4251 {
4252 offset = symbolic_header.cbAuxOffset;
4253 for (file_ptr = first_file;
4254 file_ptr != (efdr_t *) 0;
4255 file_ptr = file_ptr->next_file)
4256 {
4257 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4258 offset = file_offset;
4259 }
4260 }
4261
4262 if (symbolic_header.issMax > 0) /* local strings */
4263 {
4264 offset = symbolic_header.cbSsOffset;
4265 for (file_ptr = first_file;
4266 file_ptr != (efdr_t *) 0;
4267 file_ptr = file_ptr->next_file)
4268 {
4269 write_varray (&file_ptr->strings, offset, "Local strings");
4270 offset = file_offset;
4271 }
4272 }
4273
4274 if (symbolic_header.issExtMax > 0) /* external strings */
4275 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4276
4277 if (symbolic_header.ifdMax > 0) /* file tables */
4278 {
4279 offset = symbolic_header.cbFdOffset;
4280 if (file_offset != offset
4281 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4282 pfatal_with_name (object_name);
4283
4284 file_offset = offset;
4285 for (file_ptr = first_file;
4286 file_ptr != (efdr_t *) 0;
4287 file_ptr = file_ptr->next_file)
4288 {
4289 if (debug)
4290 {
4291 fputs ("\twrite\tvp = ", stderr);
4292 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4293 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4294 file_offset, (unsigned long) sizeof (FDR),
4295 "File header");
4296 }
4297
4298 sys_write = fwrite (&file_ptr->fdr,
4299 1,
4300 sizeof (FDR),
4301 object_stream);
4302
4303 if (sys_write < 0)
4304 pfatal_with_name (object_name);
4305
4306 else if (sys_write != sizeof (FDR))
4307 fatal ("Wrote %d bytes to %s, system returned %d",
4308 (int) sizeof (FDR),
4309 object_name,
4310 sys_write);
4311
4312 file_offset = offset += sizeof (FDR);
4313 }
4314 }
4315
4316 if (symbolic_header.crfd > 0) /* relative file descriptors */
4317 {
4318 long sys_write;
4319 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4320
4321 if (file_offset != symbolic_header.cbRfdOffset
4322 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4323 pfatal_with_name (object_name);
4324
4325 if (debug)
4326 {
4327 fputs ("\twrite\tvp = ", stderr);
4328 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4329 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4330 (long) symbolic_header.cbRfdOffset,
4331 num_write, "Relative file descriptors");
4332 }
4333
4334 sys_write = fwrite (orig_rfds,
4335 1,
4336 num_write,
4337 object_stream);
4338
4339 if (sys_write <= 0)
4340 pfatal_with_name (object_name);
4341
4342 else if (sys_write != (long)num_write)
4343 fatal ("Wrote %lu bytes to %s, system returned %ld",
4344 num_write,
4345 object_name,
4346 sys_write);
4347
4348 file_offset = symbolic_header.cbRfdOffset + num_write;
4349 }
4350
4351 if (symbolic_header.issExtMax > 0) /* external symbols */
4352 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4353
4354 if (fclose (object_stream) != 0)
4355 pfatal_with_name (object_name);
4356 }
4357
4358 \f
4359 /* Read some bytes at a specified location, and return a pointer. */
4360
4361 STATIC page_t *
4362 read_seek (size, offset, str)
4363 Size_t size; /* # bytes to read */
4364 off_t offset; /* offset to read at */
4365 const char *str; /* name for tracing */
4366 {
4367 page_t *ptr;
4368 long sys_read = 0;
4369
4370 if (size == 0) /* nothing to read */
4371 return (page_t *) 0;
4372
4373 if (debug)
4374 fprintf (stderr,
4375 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4376 (unsigned long) size, (unsigned long) offset, file_offset, str);
4377
4378 #ifndef MALLOC_CHECK
4379 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4380 #else
4381 ptr = (page_t *) xcalloc (1, size);
4382 #endif
4383
4384 /* If we need to seek, and the distance is nearby, just do some reads,
4385 to speed things up. */
4386 if (file_offset != offset)
4387 {
4388 symint_t difference = offset - file_offset;
4389
4390 if (difference < 8)
4391 {
4392 char small_buffer[8];
4393
4394 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4395 if (sys_read <= 0)
4396 pfatal_with_name (obj_in_name);
4397
4398 if ((symint_t)sys_read != difference)
4399 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4400 (unsigned long) size,
4401 obj_in_name,
4402 sys_read);
4403 }
4404 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4405 pfatal_with_name (obj_in_name);
4406 }
4407
4408 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4409 if (sys_read <= 0)
4410 pfatal_with_name (obj_in_name);
4411
4412 if (sys_read != (long) size)
4413 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4414 (unsigned long) size,
4415 obj_in_name,
4416 sys_read);
4417
4418 file_offset = offset + size;
4419
4420 if (file_offset > max_file_offset)
4421 max_file_offset = file_offset;
4422
4423 return ptr;
4424 }
4425
4426 \f
4427 /* Read the existing object file (and copy to the output object file
4428 if it is different from the input object file), and remove the old
4429 symbol table. */
4430
4431 STATIC void
4432 copy_object __proto((void))
4433 {
4434 char buffer[ PAGE_SIZE ];
4435 register int sys_read;
4436 register int remaining;
4437 register int num_write;
4438 register int sys_write;
4439 register int fd, es;
4440 register int delete_ifd = 0;
4441 register int *remap_file_number;
4442 struct stat stat_buf;
4443
4444 if (debug)
4445 fprintf (stderr, "\tcopy\n");
4446
4447 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4448 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4449 pfatal_with_name (obj_in_name);
4450
4451 sys_read = fread ((PTR_T) &orig_file_header,
4452 1,
4453 sizeof (struct filehdr),
4454 obj_in_stream);
4455
4456 if (sys_read < 0)
4457 pfatal_with_name (obj_in_name);
4458
4459 else if (sys_read == 0 && feof (obj_in_stream))
4460 return; /* create a .T file sans file header */
4461
4462 else if (sys_read < (int) sizeof (struct filehdr))
4463 fatal ("Wanted to read %d bytes from %s, system returned %d",
4464 (int) sizeof (struct filehdr),
4465 obj_in_name,
4466 sys_read);
4467
4468
4469 if (orig_file_header.f_nsyms != sizeof (HDRR))
4470 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4471 input_name, orig_file_header.f_nsyms, (int) sizeof (HDRR));
4472
4473
4474 /* Read in the current symbolic header. */
4475 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4476 pfatal_with_name (input_name);
4477
4478 sys_read = fread ((PTR_T) &orig_sym_hdr,
4479 1,
4480 sizeof (orig_sym_hdr),
4481 obj_in_stream);
4482
4483 if (sys_read < 0)
4484 pfatal_with_name (object_name);
4485
4486 else if (sys_read < (int) sizeof (struct filehdr))
4487 fatal ("Wanted to read %d bytes from %s, system returned %d",
4488 (int) sizeof (struct filehdr),
4489 obj_in_name,
4490 sys_read);
4491
4492
4493 /* Read in each of the sections if they exist in the object file.
4494 We read things in in the order the mips assembler creates the
4495 sections, so in theory no extra seeks are done.
4496
4497 For simplicity sake, round each read up to a page boundary,
4498 we may want to revisit this later.... */
4499
4500 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4501
4502 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4503 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4504 orig_sym_hdr.cbLineOffset,
4505 "Line numbers");
4506
4507 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4508 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4509 orig_sym_hdr.cbPdOffset,
4510 "Procedure tables");
4511
4512 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4513 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4514 orig_sym_hdr.cbSymOffset,
4515 "Local symbols");
4516
4517 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4518 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4519 orig_sym_hdr.cbAuxOffset,
4520 "Aux. symbols");
4521
4522 if (orig_sym_hdr.issMax > 0) /* local strings */
4523 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4524 orig_sym_hdr.cbSsOffset,
4525 "Local strings");
4526
4527 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4528 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4529 orig_sym_hdr.cbSsExtOffset,
4530 "External strings");
4531
4532 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4533 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4534 orig_sym_hdr.cbFdOffset,
4535 "File tables");
4536
4537 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4538 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4539 orig_sym_hdr.cbRfdOffset,
4540 "Relative file descriptors");
4541
4542 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4543 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4544 orig_sym_hdr.cbExtOffset,
4545 "External symbols");
4546
4547 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4548 {
4549 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4550 orig_sym_hdr.cbDnOffset,
4551 "Dense numbers");
4552
4553 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4554 }
4555
4556 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4557 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4558 orig_sym_hdr.cbOptOffset,
4559 "Optimizer symbols");
4560
4561
4562
4563 /* Abort if the symbol table is not last. */
4564 if (max_file_offset != stat_buf.st_size)
4565 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4566 max_file_offset,
4567 stat_buf.st_size);
4568
4569
4570 /* If the first original file descriptor is a dummy which the assembler
4571 put out, but there are no symbols in it, skip it now. */
4572 if (orig_sym_hdr.ifdMax > 1
4573 && orig_files->csym == 2
4574 && orig_files->caux == 0)
4575 {
4576 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4577 char *suffix = local_rindex (filename, '.');
4578
4579 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4580 delete_ifd = 1;
4581 }
4582
4583
4584 /* Create array to map original file numbers to the new file numbers
4585 (in case there are duplicate filenames, we collapse them into one
4586 file section, the MIPS assembler may or may not collapse them). */
4587
4588 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4589
4590 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4591 {
4592 register FDR *fd_ptr = ORIG_FILES (fd);
4593 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4594
4595 /* file support itself. */
4596 add_file (filename, filename + strlen (filename));
4597 remap_file_number[fd] = cur_file_ptr->file_index;
4598 }
4599
4600 if (delete_ifd > 0) /* just in case */
4601 remap_file_number[0] = remap_file_number[1];
4602
4603
4604 /* Loop, adding each of the external symbols. These must be in
4605 order or otherwise we would have to change the relocation
4606 entries. We don't just call add_bytes, because we need to have
4607 the names put into the external hash table. We set the type to
4608 'void' for now, and parse_def will fill in the correct type if it
4609 is in the symbol table. We must add the external symbols before
4610 the locals, since the locals do lookups against the externals. */
4611
4612 if (debug)
4613 fprintf (stderr, "\tehash\n");
4614
4615 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4616 {
4617 register EXTR *eptr = orig_ext_syms + es;
4618 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4619 register unsigned ifd = eptr->ifd;
4620
4621 (void) add_ext_symbol (ename,
4622 ename + strlen (ename),
4623 (st_t) eptr->asym.st,
4624 (sc_t) eptr->asym.sc,
4625 eptr->asym.value,
4626 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4627 ((long) ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4628 }
4629
4630
4631 /* For each of the files in the object file, copy the symbols, and such
4632 into the varrays for the new object file. */
4633
4634 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4635 {
4636 register FDR *fd_ptr = ORIG_FILES (fd);
4637 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4638 register SYMR *sym_start;
4639 register SYMR *sym;
4640 register SYMR *sym_end_p1;
4641 register PDR *proc_start;
4642 register PDR *proc;
4643 register PDR *proc_end_p1;
4644
4645 /* file support itself. */
4646 add_file (filename, filename + strlen (filename));
4647 cur_file_ptr->orig_fdr = fd_ptr;
4648
4649 /* Copy stuff that's just passed through (such as line #'s) */
4650 cur_file_ptr->fdr.adr = fd_ptr->adr;
4651 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4652 cur_file_ptr->fdr.cline = fd_ptr->cline;
4653 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4654 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4655 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4656 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4657 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4658 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4659 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4660
4661 if (debug)
4662 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4663
4664 /* For each of the static and global symbols defined, add them
4665 to the hash table of original symbols, so we can look up
4666 their values. */
4667
4668 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4669 sym_end_p1 = sym_start + fd_ptr->csym;
4670 for (sym = sym_start; sym < sym_end_p1; sym++)
4671 {
4672 switch ((st_t) sym->st)
4673 {
4674 default:
4675 break;
4676
4677 case st_Global:
4678 case st_Static:
4679 case st_Label:
4680 case st_Proc:
4681 case st_StaticProc:
4682 {
4683 auto symint_t hash_index;
4684 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4685 register Size_t len = strlen (str);
4686 register shash_t *shash_ptr = hash_string (str,
4687 (Ptrdiff_t)len,
4688 &orig_str_hash[0],
4689 &hash_index);
4690
4691 if (shash_ptr != (shash_t *) 0)
4692 error ("internal error, %s is already in original symbol table", str);
4693
4694 else
4695 {
4696 shash_ptr = allocate_shash ();
4697 shash_ptr->next = orig_str_hash[hash_index];
4698 orig_str_hash[hash_index] = shash_ptr;
4699
4700 shash_ptr->len = len;
4701 shash_ptr->indx = indexNil;
4702 shash_ptr->string = str;
4703 shash_ptr->sym_ptr = sym;
4704 }
4705 }
4706 break;
4707
4708 case st_End:
4709 if ((sc_t) sym->sc == sc_Text)
4710 {
4711 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4712
4713 if (*str != '\0')
4714 {
4715 register Size_t len = strlen (str);
4716 register shash_t *shash_ptr = hash_string (str,
4717 (Ptrdiff_t)len,
4718 &orig_str_hash[0],
4719 (symint_t *) 0);
4720
4721 if (shash_ptr != (shash_t *) 0)
4722 shash_ptr->end_ptr = sym;
4723 }
4724 }
4725 break;
4726
4727 }
4728 }
4729
4730 if (debug)
4731 {
4732 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4733 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4734 }
4735
4736 /* Go through each of the procedures in this file, and add the
4737 procedure pointer to the hash entry for the given name. */
4738
4739 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4740 proc_end_p1 = proc_start + fd_ptr->cpd;
4741 for (proc = proc_start; proc < proc_end_p1; proc++)
4742 {
4743 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4744 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4745 register Size_t len = strlen (str);
4746 register shash_t *shash_ptr = hash_string (str,
4747 (Ptrdiff_t)len,
4748 &orig_str_hash[0],
4749 (symint_t *) 0);
4750
4751 if (shash_ptr == (shash_t *) 0)
4752 error ("internal error, function %s is not in original symbol table", str);
4753
4754 else
4755 shash_ptr->proc_ptr = proc;
4756 }
4757
4758 if (debug)
4759 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4760
4761 }
4762 cur_file_ptr = first_file;
4763
4764
4765 /* Copy all of the object file up to the symbol table. Originally
4766 we were going to use ftruncate, but that doesn't seem to work
4767 on Ultrix 3.1.... */
4768
4769 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4770 pfatal_with_name (obj_in_name);
4771
4772 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4773 pfatal_with_name (object_name);
4774
4775 for (remaining = orig_file_header.f_symptr;
4776 remaining > 0;
4777 remaining -= num_write)
4778 {
4779 num_write =
4780 (remaining <= (int) sizeof (buffer)) ? remaining : sizeof (buffer);
4781 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4782 if (sys_read <= 0)
4783 pfatal_with_name (obj_in_name);
4784
4785 else if (sys_read != num_write)
4786 fatal ("Wanted to read %d bytes from %s, system returned %d",
4787 num_write,
4788 obj_in_name,
4789 sys_read);
4790
4791 sys_write = fwrite (buffer, 1, num_write, object_stream);
4792 if (sys_write <= 0)
4793 pfatal_with_name (object_name);
4794
4795 else if (sys_write != num_write)
4796 fatal ("Wrote %d bytes to %s, system returned %d",
4797 num_write,
4798 object_name,
4799 sys_write);
4800 }
4801 }
4802
4803 \f
4804 /* Ye olde main program. */
4805
4806 int
4807 main (argc, argv)
4808 int argc;
4809 char *argv[];
4810 {
4811 int iflag = 0;
4812 char *p = local_rindex (argv[0], '/');
4813 char *num_end;
4814 int option;
4815 int i;
4816
4817 progname = (p != 0) ? p+1 : argv[0];
4818
4819 (void) signal (SIGSEGV, catch_signal);
4820 (void) signal (SIGBUS, catch_signal);
4821 (void) signal (SIGABRT, catch_signal);
4822
4823 #if !defined(__SABER__) && !defined(lint)
4824 if (sizeof (efdr_t) > PAGE_USIZE)
4825 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4826 (int) sizeof (efdr_t),
4827 (int) PAGE_USIZE);
4828
4829 if (sizeof (page_t) != PAGE_USIZE)
4830 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4831 (int) sizeof (page_t),
4832 (int) PAGE_USIZE);
4833
4834 #endif
4835
4836 alloc_counts[ alloc_type_none ].alloc_name = "none";
4837 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4838 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4839 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4840 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4841 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4842 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4843 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4844 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4845
4846 int_type_info = type_info_init;
4847 int_type_info.basic_type = bt_Int;
4848
4849 void_type_info = type_info_init;
4850 void_type_info.basic_type = bt_Void;
4851
4852 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4853 switch (option)
4854 {
4855 default:
4856 had_errors++;
4857 break;
4858
4859 case 'd':
4860 debug = strtol (optarg, &num_end, 0);
4861 if ((unsigned)debug > 4 || num_end == optarg)
4862 had_errors++;
4863
4864 break;
4865
4866 case 'I':
4867 if (rename_output || obj_in_name != (char *) 0)
4868 had_errors++;
4869 else
4870 rename_output = 1;
4871
4872 /* fall through to 'i' case. */
4873
4874 case 'i':
4875 if (obj_in_name == (char *) 0)
4876 {
4877 obj_in_name = optarg;
4878 iflag++;
4879 }
4880 else
4881 had_errors++;
4882 break;
4883
4884 case 'o':
4885 if (object_name == (char *) 0)
4886 object_name = optarg;
4887 else
4888 had_errors++;
4889 break;
4890
4891 case 'v':
4892 version++;
4893 break;
4894 }
4895
4896 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4897 obj_in_name = argv[--argc];
4898
4899 if (object_name == (char *) 0 && optind <= argc - 2)
4900 object_name = argv[--argc];
4901
4902 /* If there is an output name, but no input name use
4903 the same file for both, deleting the name between
4904 opening it for input and opening it for output. */
4905 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4906 {
4907 obj_in_name = object_name;
4908 delete_input = 1;
4909 }
4910
4911 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4912 {
4913 fprintf (stderr, "Calling Sequence:\n");
4914 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4915 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4916 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4917 fprintf (stderr, "\n");
4918 fprintf (stderr, "Debug levels are:\n");
4919 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4920 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4921 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4922 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4923 return 1;
4924 }
4925
4926
4927 if (version)
4928 {
4929 fprintf (stderr, "mips-tfile version %s", version_string);
4930 #ifdef TARGET_VERSION
4931 TARGET_VERSION;
4932 #endif
4933 fputc ('\n', stderr);
4934 }
4935
4936 if (obj_in_name == (char *) 0)
4937 obj_in_name = object_name;
4938
4939 if (rename_output && rename (object_name, obj_in_name) != 0)
4940 {
4941 char *buffer = (char *) allocate_multiple_pages (4);
4942 int len;
4943 int len2;
4944 int in_fd;
4945 int out_fd;
4946
4947 /* Rename failed, copy input file */
4948 in_fd = open (object_name, O_RDONLY, 0666);
4949 if (in_fd < 0)
4950 pfatal_with_name (object_name);
4951
4952 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4953 if (out_fd < 0)
4954 pfatal_with_name (obj_in_name);
4955
4956 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4957 {
4958 len2 = write (out_fd, buffer, len);
4959 if (len2 < 0)
4960 pfatal_with_name (object_name);
4961
4962 if (len != len2)
4963 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4964 }
4965
4966 free_multiple_pages ((page_t *)buffer, 4);
4967
4968 if (len < 0)
4969 pfatal_with_name (object_name);
4970
4971 if (close (in_fd) < 0)
4972 pfatal_with_name (object_name);
4973
4974 if (close (out_fd) < 0)
4975 pfatal_with_name (obj_in_name);
4976 }
4977
4978 /* Must open input before output, since the output may be the same file, and
4979 we need to get the input handle before truncating it. */
4980 obj_in_stream = fopen (obj_in_name, "r");
4981 if (obj_in_stream == (FILE *) 0)
4982 pfatal_with_name (obj_in_name);
4983
4984 if (delete_input && unlink (obj_in_name) != 0)
4985 pfatal_with_name (obj_in_name);
4986
4987 object_stream = fopen (object_name, "w");
4988 if (object_stream == (FILE *) 0)
4989 pfatal_with_name (object_name);
4990
4991 if (strcmp (argv[optind], "-") != 0)
4992 {
4993 input_name = argv[optind];
4994 if (freopen (argv[optind], "r", stdin) != stdin)
4995 pfatal_with_name (argv[optind]);
4996 }
4997
4998 copy_object (); /* scan & copy object file */
4999 parse_input (); /* scan all of input */
5000
5001 update_headers (); /* write out tfile */
5002 write_object ();
5003
5004 if (debug)
5005 {
5006 fprintf (stderr, "\n\tAllocation summary:\n\n");
5007 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5008 if (alloc_counts[i].total_alloc)
5009 {
5010 fprintf (stderr,
5011 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5012 alloc_counts[i].alloc_name,
5013 alloc_counts[i].total_alloc,
5014 alloc_counts[i].total_free,
5015 alloc_counts[i].total_pages);
5016 }
5017 }
5018
5019 return (had_errors) ? 1 : 0;
5020 }
5021
5022 \f
5023 /* Catch a signal and exit without dumping core. */
5024
5025 STATIC void
5026 catch_signal (signum)
5027 int signum;
5028 {
5029 (void) signal (signum, SIG_DFL); /* just in case... */
5030 fatal (strsignal(signum));
5031 }
5032
5033 /* Print a fatal error message. NAME is the text.
5034 Also include a system error message based on `errno'. */
5035
5036 void
5037 pfatal_with_name (msg)
5038 const char *msg;
5039 {
5040 int save_errno = errno; /* just in case.... */
5041 if (line_number > 0)
5042 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5043 else
5044 fprintf (stderr, "%s:", progname);
5045
5046 errno = save_errno;
5047 if (errno == 0)
5048 fprintf (stderr, "[errno = 0] %s\n", msg);
5049 else
5050 perror (msg);
5051
5052 exit (1);
5053 }
5054
5055 \f
5056 /* Procedure to abort with an out of bounds error message. It has
5057 type int, so it can be used with an ?: expression within the
5058 ORIG_xxx macros, but the function never returns. */
5059
5060 static int
5061 out_of_bounds (indx, max, str, prog_line)
5062 symint_t indx; /* index that is out of bounds */
5063 symint_t max; /* maximum index */
5064 const char *str; /* string to print out */
5065 int prog_line; /* line number within mips-tfile.c */
5066 {
5067 if (indx < max) /* just in case */
5068 return 0;
5069
5070 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5071 progname, input_name, line_number, indx, str, max, prog_line);
5072
5073 exit (1);
5074 return 0; /* turn off warning messages */
5075 }
5076
5077 \f
5078 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5079 like sbrk's behind its back (or sbrk isn't available). If we use
5080 sbrk, we assume it gives us zeroed pages. */
5081
5082 #ifndef MALLOC_CHECK
5083 #ifdef USE_MALLOC
5084
5085 STATIC page_t *
5086 allocate_cluster (npages)
5087 Size_t npages;
5088 {
5089 register page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5090
5091 if (debug > 3)
5092 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5093
5094 return value;
5095 }
5096
5097 #else /* USE_MALLOC */
5098
5099 STATIC page_t *
5100 allocate_cluster (npages)
5101 Size_t npages;
5102 {
5103 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5104 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5105
5106 if (offset != 0) /* align to a page boundary */
5107 {
5108 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5109 pfatal_with_name ("allocate_cluster");
5110
5111 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5112 }
5113
5114 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5115 pfatal_with_name ("allocate_cluster");
5116
5117 if (debug > 3)
5118 {
5119 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5120 (unsigned long) npages);
5121 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5122 fputs ("\n", stderr);
5123 }
5124
5125 return ptr;
5126 }
5127
5128 #endif /* USE_MALLOC */
5129
5130
5131 static page_t *cluster_ptr = NULL;
5132 static unsigned pages_left = 0;
5133
5134 #endif /* MALLOC_CHECK */
5135
5136
5137 /* Allocate some pages (which is initialized to 0). */
5138
5139 STATIC page_t *
5140 allocate_multiple_pages (npages)
5141 Size_t npages;
5142 {
5143 #ifndef MALLOC_CHECK
5144 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5145 {
5146 pages_left = MAX_CLUSTER_PAGES;
5147 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5148 }
5149
5150 if (npages <= pages_left)
5151 {
5152 page_t *ptr = cluster_ptr;
5153 cluster_ptr += npages;
5154 pages_left -= npages;
5155 return ptr;
5156 }
5157
5158 return allocate_cluster (npages);
5159
5160 #else /* MALLOC_CHECK */
5161 return (page_t *) xcalloc (npages, PAGE_SIZE);
5162
5163 #endif /* MALLOC_CHECK */
5164 }
5165
5166
5167 /* Release some pages. */
5168
5169 STATIC void
5170 free_multiple_pages (page_ptr, npages)
5171 page_t *page_ptr;
5172 Size_t npages;
5173 {
5174 #ifndef MALLOC_CHECK
5175 if (pages_left == 0)
5176 {
5177 cluster_ptr = page_ptr;
5178 pages_left = npages;
5179 }
5180
5181 else if ((page_ptr + npages) == cluster_ptr)
5182 {
5183 cluster_ptr -= npages;
5184 pages_left += npages;
5185 }
5186
5187 /* otherwise the page is not freed. If more than call is
5188 done, we probably should worry about it, but at present,
5189 the free pages is done right after an allocate. */
5190
5191 #else /* MALLOC_CHECK */
5192 free ((char *) page_ptr);
5193
5194 #endif /* MALLOC_CHECK */
5195 }
5196
5197
5198 /* Allocate one page (which is initialized to 0). */
5199
5200 STATIC page_t *
5201 allocate_page __proto((void))
5202 {
5203 #ifndef MALLOC_CHECK
5204 if (pages_left == 0)
5205 {
5206 pages_left = MAX_CLUSTER_PAGES;
5207 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5208 }
5209
5210 pages_left--;
5211 return cluster_ptr++;
5212
5213 #else /* MALLOC_CHECK */
5214 return (page_t *) xcalloc (1, PAGE_SIZE);
5215
5216 #endif /* MALLOC_CHECK */
5217 }
5218
5219 \f
5220 /* Allocate scoping information. */
5221
5222 STATIC scope_t *
5223 allocate_scope __proto((void))
5224 {
5225 register scope_t *ptr;
5226 static scope_t initial_scope;
5227
5228 #ifndef MALLOC_CHECK
5229 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5230 if (ptr != (scope_t *) 0)
5231 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5232
5233 else
5234 {
5235 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5236 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5237
5238 if (unallocated == 0)
5239 {
5240 unallocated = PAGE_SIZE / sizeof (scope_t);
5241 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5242 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5243 }
5244
5245 ptr = &cur_page->scope[ --unallocated ];
5246 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5247 }
5248
5249 #else
5250 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5251
5252 #endif
5253
5254 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5255 *ptr = initial_scope;
5256 return ptr;
5257 }
5258
5259 /* Free scoping information. */
5260
5261 STATIC void
5262 free_scope (ptr)
5263 scope_t *ptr;
5264 {
5265 alloc_counts[ (int)alloc_type_scope ].total_free++;
5266
5267 #ifndef MALLOC_CHECK
5268 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5269 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5270
5271 #else
5272 free ((PTR_T) ptr);
5273 #endif
5274
5275 }
5276
5277 \f
5278 /* Allocate links for pages in a virtual array. */
5279
5280 STATIC vlinks_t *
5281 allocate_vlinks __proto((void))
5282 {
5283 register vlinks_t *ptr;
5284 static vlinks_t initial_vlinks;
5285
5286 #ifndef MALLOC_CHECK
5287 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5288 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5289
5290 if (unallocated == 0)
5291 {
5292 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5293 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5294 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5295 }
5296
5297 ptr = &cur_page->vlinks[ --unallocated ];
5298 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5299
5300 #else
5301 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5302
5303 #endif
5304
5305 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5306 *ptr = initial_vlinks;
5307 return ptr;
5308 }
5309
5310 \f
5311 /* Allocate string hash buckets. */
5312
5313 STATIC shash_t *
5314 allocate_shash __proto((void))
5315 {
5316 register shash_t *ptr;
5317 static shash_t initial_shash;
5318
5319 #ifndef MALLOC_CHECK
5320 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5321 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5322
5323 if (unallocated == 0)
5324 {
5325 unallocated = PAGE_SIZE / sizeof (shash_t);
5326 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5327 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5328 }
5329
5330 ptr = &cur_page->shash[ --unallocated ];
5331 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5332
5333 #else
5334 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5335
5336 #endif
5337
5338 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5339 *ptr = initial_shash;
5340 return ptr;
5341 }
5342
5343 \f
5344 /* Allocate type hash buckets. */
5345
5346 STATIC thash_t *
5347 allocate_thash __proto((void))
5348 {
5349 register thash_t *ptr;
5350 static thash_t initial_thash;
5351
5352 #ifndef MALLOC_CHECK
5353 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5354 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5355
5356 if (unallocated == 0)
5357 {
5358 unallocated = PAGE_SIZE / sizeof (thash_t);
5359 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5360 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5361 }
5362
5363 ptr = &cur_page->thash[ --unallocated ];
5364 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5365
5366 #else
5367 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5368
5369 #endif
5370
5371 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5372 *ptr = initial_thash;
5373 return ptr;
5374 }
5375
5376 \f
5377 /* Allocate structure, union, or enum tag information. */
5378
5379 STATIC tag_t *
5380 allocate_tag __proto((void))
5381 {
5382 register tag_t *ptr;
5383 static tag_t initial_tag;
5384
5385 #ifndef MALLOC_CHECK
5386 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5387 if (ptr != (tag_t *) 0)
5388 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5389
5390 else
5391 {
5392 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5393 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5394
5395 if (unallocated == 0)
5396 {
5397 unallocated = PAGE_SIZE / sizeof (tag_t);
5398 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5399 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5400 }
5401
5402 ptr = &cur_page->tag[ --unallocated ];
5403 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5404 }
5405
5406 #else
5407 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5408
5409 #endif
5410
5411 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5412 *ptr = initial_tag;
5413 return ptr;
5414 }
5415
5416 /* Free scoping information. */
5417
5418 STATIC void
5419 free_tag (ptr)
5420 tag_t *ptr;
5421 {
5422 alloc_counts[ (int)alloc_type_tag ].total_free++;
5423
5424 #ifndef MALLOC_CHECK
5425 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5426 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5427
5428 #else
5429 free ((PTR_T) ptr);
5430 #endif
5431
5432 }
5433
5434 \f
5435 /* Allocate forward reference to a yet unknown tag. */
5436
5437 STATIC forward_t *
5438 allocate_forward __proto((void))
5439 {
5440 register forward_t *ptr;
5441 static forward_t initial_forward;
5442
5443 #ifndef MALLOC_CHECK
5444 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5445 if (ptr != (forward_t *) 0)
5446 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5447
5448 else
5449 {
5450 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5451 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5452
5453 if (unallocated == 0)
5454 {
5455 unallocated = PAGE_SIZE / sizeof (forward_t);
5456 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5457 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5458 }
5459
5460 ptr = &cur_page->forward[ --unallocated ];
5461 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5462 }
5463
5464 #else
5465 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5466
5467 #endif
5468
5469 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5470 *ptr = initial_forward;
5471 return ptr;
5472 }
5473
5474 /* Free scoping information. */
5475
5476 STATIC void
5477 free_forward (ptr)
5478 forward_t *ptr;
5479 {
5480 alloc_counts[ (int)alloc_type_forward ].total_free++;
5481
5482 #ifndef MALLOC_CHECK
5483 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5484 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5485
5486 #else
5487 free ((PTR_T) ptr);
5488 #endif
5489
5490 }
5491
5492 \f
5493 /* Allocate head of type hash list. */
5494
5495 STATIC thead_t *
5496 allocate_thead __proto((void))
5497 {
5498 register thead_t *ptr;
5499 static thead_t initial_thead;
5500
5501 #ifndef MALLOC_CHECK
5502 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5503 if (ptr != (thead_t *) 0)
5504 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5505
5506 else
5507 {
5508 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5509 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5510
5511 if (unallocated == 0)
5512 {
5513 unallocated = PAGE_SIZE / sizeof (thead_t);
5514 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5515 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5516 }
5517
5518 ptr = &cur_page->thead[ --unallocated ];
5519 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5520 }
5521
5522 #else
5523 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5524
5525 #endif
5526
5527 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5528 *ptr = initial_thead;
5529 return ptr;
5530 }
5531
5532 /* Free scoping information. */
5533
5534 STATIC void
5535 free_thead (ptr)
5536 thead_t *ptr;
5537 {
5538 alloc_counts[ (int)alloc_type_thead ].total_free++;
5539
5540 #ifndef MALLOC_CHECK
5541 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5542 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5543
5544 #else
5545 free ((PTR_T) ptr);
5546 #endif
5547
5548 }
5549
5550 #endif /* MIPS_DEBUGGING_INFO */
5551
5552 \f
5553 /* Output an error message and exit */
5554
5555 /*VARARGS*/
5556 void
5557 fatal VPROTO((const char *format, ...))
5558 {
5559 #ifndef ANSI_PROTOTYPES
5560 const char *format;
5561 #endif
5562 va_list ap;
5563
5564 VA_START (ap, format);
5565
5566 #ifndef ANSI_PROTOTYPES
5567 format = va_arg (ap, const char *);
5568 #endif
5569
5570 if (line_number > 0)
5571 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5572 else
5573 fprintf (stderr, "%s:", progname);
5574
5575 vfprintf (stderr, format, ap);
5576 va_end (ap);
5577 fprintf (stderr, "\n");
5578 if (line_number > 0)
5579 fprintf (stderr, "line:\t%s\n", cur_line_start);
5580
5581 saber_stop ();
5582 exit (1);
5583 }
5584
5585 /*VARARGS*/
5586 void
5587 error VPROTO((const char *format, ...))
5588 {
5589 #ifndef ANSI_PROTOTYPES
5590 char *format;
5591 #endif
5592 va_list ap;
5593
5594 VA_START (ap, format);
5595
5596 #ifndef ANSI_PROTOTYPES
5597 format = va_arg (ap, char *);
5598 #endif
5599
5600 if (line_number > 0)
5601 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5602 else
5603 fprintf (stderr, "%s:", progname);
5604
5605 vfprintf (stderr, format, ap);
5606 fprintf (stderr, "\n");
5607 if (line_number > 0)
5608 fprintf (stderr, "line:\t%s\n", cur_line_start);
5609
5610 had_errors++;
5611 va_end (ap);
5612
5613 saber_stop ();
5614 }
5615
5616 /* More 'friendly' abort that prints the line and file.
5617 config.h can #define abort fancy_abort if you like that sort of thing. */
5618
5619 void
5620 fancy_abort ()
5621 {
5622 fatal ("Internal abort.");
5623 }
5624 \f
5625
5626 /* When `malloc.c' is compiled with `rcheck' defined,
5627 it calls this function to report clobberage. */
5628
5629 void
5630 botch (s)
5631 const char *s;
5632 {
5633 fatal (s);
5634 }
5635
5636 \f
5637 /* Define our own index/rindex, since the local and global symbol
5638 structures as defined by MIPS has an 'index' field. */
5639
5640 STATIC char *
5641 local_index (str, sentinel)
5642 const char *str;
5643 int sentinel;
5644 {
5645 int ch;
5646
5647 for ( ; (ch = *str) != sentinel; str++)
5648 {
5649 if (ch == '\0')
5650 return (char *) 0;
5651 }
5652
5653 return (char *)str;
5654 }
5655
5656 STATIC char *
5657 local_rindex (str, sentinel)
5658 const char *str;
5659 int sentinel;
5660 {
5661 int ch;
5662 const char *ret = (const char *) 0;
5663
5664 for ( ; (ch = *str) != '\0'; str++)
5665 {
5666 if (ch == sentinel)
5667 ret = str;
5668 }
5669
5670 return (char *)ret;
5671 }
GNU Compiler Collection
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