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Initial revision
[official-gcc.git] / gcc / mips-tfile.c
blob588f4efedc38c91879cea3b5b4b313ff480fbbad
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 extern void xfree __proto((PTR));
640
641 extern void fatal PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
642 extern void error PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
643 \f
644 #ifndef MIPS_DEBUGGING_INFO
645
646 static int line_number;
647 static int cur_line_start;
648 static int debug;
649 static int had_errors;
650 static const char *progname;
651 static const char *input_name;
652
653 int
654 main ()
655 {
656 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
657 exit (1);
658 }
659
660 #else /* MIPS_DEBUGGING defined */
661 \f
662 /* The local and global symbols have a field index, so undo any defines
663 of index -> strchr and rindex -> strrchr. */
664
665 #undef rindex
666 #undef index
667
668 #include <signal.h>
669
670 #ifndef CROSS_COMPILE
671 #include <a.out.h>
672 #else
673 #include "mips/a.out.h"
674 #endif /* CROSS_COMPILE */
675
676 #if defined (USG) || !defined (HAVE_STAB_H)
677 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
678 #else
679 #include <stab.h> /* On BSD, use the system's stab.h. */
680 #endif /* not USG */
681
682 #include "machmode.h"
683
684 #ifdef __GNU_STAB__
685 #define STAB_CODE_TYPE enum __stab_debug_code
686 #else
687 #define STAB_CODE_TYPE int
688 #endif
689
690 #ifndef MALLOC_CHECK
691 #ifdef __SABER__
692 #define MALLOC_CHECK
693 #endif
694 #endif
695
696 #define IS_ASM_IDENT(ch) \
697 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
698
699 \f
700 /* Redefinition of storage classes as an enumeration for better
701 debugging. */
702
703 typedef enum sc {
704 sc_Nil = scNil, /* no storage class */
705 sc_Text = scText, /* text symbol */
706 sc_Data = scData, /* initialized data symbol */
707 sc_Bss = scBss, /* un-initialized data symbol */
708 sc_Register = scRegister, /* value of symbol is register number */
709 sc_Abs = scAbs, /* value of symbol is absolute */
710 sc_Undefined = scUndefined, /* who knows? */
711 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
712 sc_Bits = scBits, /* this is a bit field */
713 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
714 sc_RegImage = scRegImage, /* register value saved on stack */
715 sc_Info = scInfo, /* symbol contains debugger information */
716 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
717 sc_SData = scSData, /* load time only small data */
718 sc_SBss = scSBss, /* load time only small common */
719 sc_RData = scRData, /* load time only read only data */
720 sc_Var = scVar, /* Var parameter (fortran,pascal) */
721 sc_Common = scCommon, /* common variable */
722 sc_SCommon = scSCommon, /* small common */
723 sc_VarRegister = scVarRegister, /* Var parameter in a register */
724 sc_Variant = scVariant, /* Variant record */
725 sc_SUndefined = scSUndefined, /* small undefined(external) data */
726 sc_Init = scInit, /* .init section symbol */
727 sc_Max = scMax /* Max storage class+1 */
728 } sc_t;
729
730 /* Redefinition of symbol type. */
731
732 typedef enum st {
733 st_Nil = stNil, /* Nuthin' special */
734 st_Global = stGlobal, /* external symbol */
735 st_Static = stStatic, /* static */
736 st_Param = stParam, /* procedure argument */
737 st_Local = stLocal, /* local variable */
738 st_Label = stLabel, /* label */
739 st_Proc = stProc, /* " " Procedure */
740 st_Block = stBlock, /* beginning of block */
741 st_End = stEnd, /* end (of anything) */
742 st_Member = stMember, /* member (of anything - struct/union/enum */
743 st_Typedef = stTypedef, /* type definition */
744 st_File = stFile, /* file name */
745 st_RegReloc = stRegReloc, /* register relocation */
746 st_Forward = stForward, /* forwarding address */
747 st_StaticProc = stStaticProc, /* load time only static procs */
748 st_Constant = stConstant, /* const */
749 st_Str = stStr, /* string */
750 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
751 st_Expr = stExpr, /* 2+2 vs. 4 */
752 st_Type = stType, /* post-coercion SER */
753 st_Max = stMax /* max type+1 */
754 } st_t;
755
756 /* Redefinition of type qualifiers. */
757
758 typedef enum tq {
759 tq_Nil = tqNil, /* bt is what you see */
760 tq_Ptr = tqPtr, /* pointer */
761 tq_Proc = tqProc, /* procedure */
762 tq_Array = tqArray, /* duh */
763 tq_Far = tqFar, /* longer addressing - 8086/8 land */
764 tq_Vol = tqVol, /* volatile */
765 tq_Max = tqMax /* Max type qualifier+1 */
766 } tq_t;
767
768 /* Redefinition of basic types. */
769
770 typedef enum bt {
771 bt_Nil = btNil, /* undefined */
772 bt_Adr = btAdr, /* address - integer same size as pointer */
773 bt_Char = btChar, /* character */
774 bt_UChar = btUChar, /* unsigned character */
775 bt_Short = btShort, /* short */
776 bt_UShort = btUShort, /* unsigned short */
777 bt_Int = btInt, /* int */
778 bt_UInt = btUInt, /* unsigned int */
779 bt_Long = btLong, /* long */
780 bt_ULong = btULong, /* unsigned long */
781 bt_Float = btFloat, /* float (real) */
782 bt_Double = btDouble, /* Double (real) */
783 bt_Struct = btStruct, /* Structure (Record) */
784 bt_Union = btUnion, /* Union (variant) */
785 bt_Enum = btEnum, /* Enumerated */
786 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
787 bt_Range = btRange, /* subrange of int */
788 bt_Set = btSet, /* pascal sets */
789 bt_Complex = btComplex, /* fortran complex */
790 bt_DComplex = btDComplex, /* fortran double complex */
791 bt_Indirect = btIndirect, /* forward or unnamed typedef */
792 bt_FixedDec = btFixedDec, /* Fixed Decimal */
793 bt_FloatDec = btFloatDec, /* Float Decimal */
794 bt_String = btString, /* Varying Length Character String */
795 bt_Bit = btBit, /* Aligned Bit String */
796 bt_Picture = btPicture, /* Picture */
797
798 #ifdef btVoid
799 bt_Void = btVoid, /* Void */
800 #else
801 #define bt_Void bt_Nil
802 #endif
803
804 bt_Max = btMax /* Max basic type+1 */
805 } bt_t;
806
807 \f
808
809 /* Basic COFF storage classes. */
810 enum coff_storage {
811 C_EFCN = -1,
812 C_NULL = 0,
813 C_AUTO = 1,
814 C_EXT = 2,
815 C_STAT = 3,
816 C_REG = 4,
817 C_EXTDEF = 5,
818 C_LABEL = 6,
819 C_ULABEL = 7,
820 C_MOS = 8,
821 C_ARG = 9,
822 C_STRTAG = 10,
823 C_MOU = 11,
824 C_UNTAG = 12,
825 C_TPDEF = 13,
826 C_USTATIC = 14,
827 C_ENTAG = 15,
828 C_MOE = 16,
829 C_REGPARM = 17,
830 C_FIELD = 18,
831 C_BLOCK = 100,
832 C_FCN = 101,
833 C_EOS = 102,
834 C_FILE = 103,
835 C_LINE = 104,
836 C_ALIAS = 105,
837 C_HIDDEN = 106,
838 C_MAX = 107
839 } coff_storage_t;
840
841 /* Regular COFF fundamental type. */
842 typedef enum coff_type {
843 T_NULL = 0,
844 T_ARG = 1,
845 T_CHAR = 2,
846 T_SHORT = 3,
847 T_INT = 4,
848 T_LONG = 5,
849 T_FLOAT = 6,
850 T_DOUBLE = 7,
851 T_STRUCT = 8,
852 T_UNION = 9,
853 T_ENUM = 10,
854 T_MOE = 11,
855 T_UCHAR = 12,
856 T_USHORT = 13,
857 T_UINT = 14,
858 T_ULONG = 15,
859 T_MAX = 16
860 } coff_type_t;
861
862 /* Regular COFF derived types. */
863 typedef enum coff_dt {
864 DT_NON = 0,
865 DT_PTR = 1,
866 DT_FCN = 2,
867 DT_ARY = 3,
868 DT_MAX = 4
869 } coff_dt_t;
870
871 #define N_BTMASK 017 /* bitmask to isolate basic type */
872 #define N_TMASK 003 /* bitmask to isolate derived type */
873 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
874 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
875 #define N_TQ 6 /* # of type qualifiers */
876
877 /* States for whether to hash type or not. */
878 typedef enum hash_state {
879 hash_no = 0, /* don't hash type */
880 hash_yes = 1, /* ok to hash type, or use previous hash */
881 hash_record = 2 /* ok to record hash, but don't use prev. */
882 } hash_state_t;
883
884
885 /* Types of different sized allocation requests. */
886 enum alloc_type {
887 alloc_type_none, /* dummy value */
888 alloc_type_scope, /* nested scopes linked list */
889 alloc_type_vlinks, /* glue linking pages in varray */
890 alloc_type_shash, /* string hash element */
891 alloc_type_thash, /* type hash element */
892 alloc_type_tag, /* struct/union/tag element */
893 alloc_type_forward, /* element to hold unknown tag */
894 alloc_type_thead, /* head of type hash list */
895 alloc_type_varray, /* general varray allocation */
896 alloc_type_last /* last+1 element for array bounds */
897 };
898
899 \f
900 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
901 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
902
903
904 /* Structures to provide n-number of virtual arrays, each of which can
905 grow linearly, and which are written in the object file as sequential
906 pages. On systems with a BSD malloc that define USE_MALLOC, the
907 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
908 adds its overhead, and rounds up to the next power of 2. Pages are
909 linked together via a linked list.
910
911 If PAGE_SIZE is > 4096, the string length in the shash_t structure
912 can't be represented (assuming there are strings > 4096 bytes). */
913
914 #ifndef PAGE_SIZE
915 #define PAGE_SIZE 4096 /* size of varray pages */
916 #endif
917
918 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
919
920
921 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
922 #ifndef USE_MALLOC /* in one memory request */
923 #define MAX_CLUSTER_PAGES 64
924 #else
925 #define MAX_CLUSTER_PAGES 63
926 #endif
927 #endif
928
929
930 /* Linked list connecting separate page allocations. */
931 typedef struct vlinks {
932 struct vlinks *prev; /* previous set of pages */
933 struct vlinks *next; /* next set of pages */
934 union page *datum; /* start of page */
935 unsigned long start_index; /* starting index # of page */
936 } vlinks_t;
937
938
939 /* Virtual array header. */
940 typedef struct varray {
941 vlinks_t *first; /* first page link */
942 vlinks_t *last; /* last page link */
943 unsigned long num_allocated; /* # objects allocated */
944 unsigned short object_size; /* size in bytes of each object */
945 unsigned short objects_per_page; /* # objects that can fit on a page */
946 unsigned short objects_last_page; /* # objects allocated on last page */
947 } varray_t;
948
949 #ifndef MALLOC_CHECK
950 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
951 #else
952 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
953 #endif
954
955 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
956 (vlinks_t *) 0, /* first */ \
957 (vlinks_t *) 0, /* last */ \
958 0, /* num_allocated */ \
959 sizeof (type), /* object_size */ \
960 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
961 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
962 }
963
964 /* Master type for indexes within the symbol table. */
965 typedef unsigned long symint_t;
966
967
968 /* Linked list support for nested scopes (file, block, structure, etc.). */
969 typedef struct scope {
970 struct scope *prev; /* previous scope level */
971 struct scope *free; /* free list pointer */
972 SYMR *lsym; /* pointer to local symbol node */
973 symint_t lnumber; /* lsym index */
974 st_t type; /* type of the node */
975 } scope_t;
976
977
978 /* Forward reference list for tags referenced, but not yet defined. */
979 typedef struct forward {
980 struct forward *next; /* next forward reference */
981 struct forward *free; /* free list pointer */
982 AUXU *ifd_ptr; /* pointer to store file index */
983 AUXU *index_ptr; /* pointer to store symbol index */
984 AUXU *type_ptr; /* pointer to munge type info */
985 } forward_t;
986
987
988 /* Linked list support for tags. The first tag in the list is always
989 the current tag for that block. */
990 typedef struct tag {
991 struct tag *free; /* free list pointer */
992 struct shash *hash_ptr; /* pointer to the hash table head */
993 struct tag *same_name; /* tag with same name in outer scope */
994 struct tag *same_block; /* next tag defined in the same block. */
995 struct forward *forward_ref; /* list of forward references */
996 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
997 symint_t ifd; /* file # tag defined in */
998 symint_t indx; /* index within file's local symbols */
999 } tag_t;
1000
1001
1002 /* Head of a block's linked list of tags. */
1003 typedef struct thead {
1004 struct thead *prev; /* previous block */
1005 struct thead *free; /* free list pointer */
1006 struct tag *first_tag; /* first tag in block defined */
1007 } thead_t;
1008
1009
1010 /* Union containing pointers to each the small structures which are freed up. */
1011 typedef union small_free {
1012 scope_t *f_scope; /* scope structure */
1013 thead_t *f_thead; /* tag head structure */
1014 tag_t *f_tag; /* tag element structure */
1015 forward_t *f_forward; /* forward tag reference */
1016 } small_free_t;
1017
1018
1019 /* String hash table support. The size of the hash table must fit
1020 within a page. */
1021
1022 #ifndef SHASH_SIZE
1023 #define SHASH_SIZE 1009
1024 #endif
1025
1026 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1027
1028 typedef struct shash {
1029 struct shash *next; /* next hash value */
1030 char *string; /* string we are hashing */
1031 symint_t len; /* string length */
1032 symint_t indx; /* index within string table */
1033 EXTR *esym_ptr; /* global symbol pointer */
1034 SYMR *sym_ptr; /* local symbol pointer */
1035 SYMR *end_ptr; /* symbol pointer to end block */
1036 tag_t *tag_ptr; /* tag pointer */
1037 PDR *proc_ptr; /* procedure descriptor pointer */
1038 } shash_t;
1039
1040
1041 /* Type hash table support. The size of the hash table must fit
1042 within a page with the other extended file descriptor information.
1043 Because unique types which are hashed are fewer in number than
1044 strings, we use a smaller hash value. */
1045
1046 #ifndef THASH_SIZE
1047 #define THASH_SIZE 113
1048 #endif
1049
1050 typedef struct thash {
1051 struct thash *next; /* next hash value */
1052 AUXU type; /* type we are hashing */
1053 symint_t indx; /* index within string table */
1054 } thash_t;
1055
1056
1057 /* Extended file descriptor that contains all of the support necessary
1058 to add things to each file separately. */
1059 typedef struct efdr {
1060 FDR fdr; /* File header to be written out */
1061 FDR *orig_fdr; /* original file header */
1062 char *name; /* filename */
1063 int name_len; /* length of the filename */
1064 symint_t void_type; /* aux. pointer to 'void' type */
1065 symint_t int_type; /* aux. pointer to 'int' type */
1066 scope_t *cur_scope; /* current nested scopes */
1067 symint_t file_index; /* current file number */
1068 int nested_scopes; /* # nested scopes */
1069 varray_t strings; /* local strings */
1070 varray_t symbols; /* local symbols */
1071 varray_t procs; /* procedures */
1072 varray_t aux_syms; /* auxiliary symbols */
1073 struct efdr *next_file; /* next file descriptor */
1074 /* string/type hash tables */
1075 shash_t **shash_head; /* string hash table */
1076 thash_t *thash_head[THASH_SIZE];
1077 } efdr_t;
1078
1079 /* Pre-initialized extended file structure. */
1080 static efdr_t init_file =
1081 {
1082 { /* FDR structure */
1083 0, /* adr: memory address of beginning of file */
1084 0, /* rss: file name (of source, if known) */
1085 0, /* issBase: file's string space */
1086 0, /* cbSs: number of bytes in the ss */
1087 0, /* isymBase: beginning of symbols */
1088 0, /* csym: count file's of symbols */
1089 0, /* ilineBase: file's line symbols */
1090 0, /* cline: count of file's line symbols */
1091 0, /* ioptBase: file's optimization entries */
1092 0, /* copt: count of file's optimization entries */
1093 0, /* ipdFirst: start of procedures for this file */
1094 0, /* cpd: count of procedures for this file */
1095 0, /* iauxBase: file's auxiliary entries */
1096 0, /* caux: count of file's auxiliary entries */
1097 0, /* rfdBase: index into the file indirect table */
1098 0, /* crfd: count file indirect entries */
1099 langC, /* lang: language for this file */
1100 1, /* fMerge: whether this file can be merged */
1101 0, /* fReadin: true if read in (not just created) */
1102 #ifdef HOST_WORDS_BIG_ENDIAN
1103 1, /* fBigendian: if 1, compiled on big endian machine */
1104 #else
1105 0, /* fBigendian: if 1, compiled on big endian machine */
1106 #endif
1107 GLEVEL_2, /* glevel: level this file was compiled with */
1108 0, /* reserved: reserved for future use */
1109 0, /* cbLineOffset: byte offset from header for this file ln's */
1110 0, /* cbLine: size of lines for this file */
1111 },
1112
1113 (FDR *) 0, /* orig_fdr: original file header pointer */
1114 (char *) 0, /* name: pointer to filename */
1115 0, /* name_len: length of filename */
1116 0, /* void_type: ptr to aux node for void type */
1117 0, /* int_type: ptr to aux node for int type */
1118 (scope_t *) 0, /* cur_scope: current scope being processed */
1119 0, /* file_index: current file # */
1120 0, /* nested_scopes: # nested scopes */
1121 INIT_VARRAY (char), /* strings: local string varray */
1122 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1123 INIT_VARRAY (PDR), /* procs: procedure varray */
1124 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1125
1126 (struct efdr *) 0, /* next_file: next file structure */
1127
1128 (shash_t **) 0, /* shash_head: string hash table */
1129 { 0 }, /* thash_head: type hash table */
1130 };
1131
1132
1133 static efdr_t *first_file; /* first file descriptor */
1134 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1135
1136
1137 /* Union of various things that are held in pages. */
1138 typedef union page {
1139 char byte [ PAGE_SIZE ];
1140 unsigned char ubyte [ PAGE_SIZE ];
1141 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1142 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1143 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1144 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1145 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1146 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1147 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1148 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1149 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1150 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1151 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1152 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1153 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1154 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1155 } page_t;
1156
1157
1158 /* Structure holding allocation information for small sized structures. */
1159 typedef struct alloc_info {
1160 const char *alloc_name; /* name of this allocation type (must be first) */
1161 page_t *cur_page; /* current page being allocated from */
1162 small_free_t free_list; /* current free list if any */
1163 int unallocated; /* number of elements unallocated on page */
1164 int total_alloc; /* total number of allocations */
1165 int total_free; /* total number of frees */
1166 int total_pages; /* total number of pages allocated */
1167 } alloc_info_t;
1168
1169 /* Type information collected together. */
1170 typedef struct type_info {
1171 bt_t basic_type; /* basic type */
1172 coff_type_t orig_type; /* original COFF-based type */
1173 int num_tq; /* # type qualifiers */
1174 int num_dims; /* # dimensions */
1175 int num_sizes; /* # sizes */
1176 int extra_sizes; /* # extra sizes not tied with dims */
1177 tag_t * tag_ptr; /* tag pointer */
1178 int bitfield; /* symbol is a bitfield */
1179 int unknown_tag; /* this is an unknown tag */
1180 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1181 symint_t dimensions [N_TQ]; /* dimensions for each array */
1182 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1183 struct/union/enum + bitfield size */
1184 } type_info_t;
1185
1186 /* Pre-initialized type_info struct. */
1187 static type_info_t type_info_init = {
1188 bt_Nil, /* basic type */
1189 T_NULL, /* original COFF-based type */
1190 0, /* # type qualifiers */
1191 0, /* # dimensions */
1192 0, /* # sizes */
1193 0, /* sizes not tied with dims */
1194 NULL, /* ptr to tag */
1195 0, /* bitfield */
1196 0, /* unknown tag */
1197 { /* type qualifiers */
1198 tq_Nil,
1199 tq_Nil,
1200 tq_Nil,
1201 tq_Nil,
1202 tq_Nil,
1203 tq_Nil,
1204 },
1205 { /* dimensions */
1206 0,
1207 0,
1208 0,
1209 0,
1210 0,
1211 0
1212 },
1213 { /* sizes */
1214 0,
1215 0,
1216 0,
1217 0,
1218 0,
1219 0,
1220 0,
1221 0,
1222 },
1223 };
1224
1225
1226 /* Global virtual arrays & hash table for external strings as well as
1227 for the tags table and global tables for file descriptors, and
1228 dense numbers. */
1229
1230 static varray_t file_desc = INIT_VARRAY (efdr_t);
1231 static varray_t dense_num = INIT_VARRAY (DNR);
1232 static varray_t tag_strings = INIT_VARRAY (char);
1233 static varray_t ext_strings = INIT_VARRAY (char);
1234 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1235
1236 static shash_t *orig_str_hash[SHASH_SIZE];
1237 static shash_t *ext_str_hash [SHASH_SIZE];
1238 static shash_t *tag_hash [SHASH_SIZE];
1239
1240 /* Static types for int and void. Also, remember the last function's
1241 type (which is set up when we encounter the declaration for the
1242 function, and used when the end block for the function is emitted. */
1243
1244 static type_info_t int_type_info;
1245 static type_info_t void_type_info;
1246 static type_info_t last_func_type_info;
1247 static EXTR *last_func_eptr;
1248
1249
1250 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1251 really should use bt_Void, but this causes the current ecoff GDB to
1252 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1253 2.0) doesn't understand it, even though the compiler generates it.
1254 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1255 suite, but for now go with what works. */
1256
1257 static bt_t map_coff_types[ (int)T_MAX ] = {
1258 bt_Nil, /* T_NULL */
1259 bt_Nil, /* T_ARG */
1260 bt_Char, /* T_CHAR */
1261 bt_Short, /* T_SHORT */
1262 bt_Int, /* T_INT */
1263 bt_Long, /* T_LONG */
1264 bt_Float, /* T_FLOAT */
1265 bt_Double, /* T_DOUBLE */
1266 bt_Struct, /* T_STRUCT */
1267 bt_Union, /* T_UNION */
1268 bt_Enum, /* T_ENUM */
1269 bt_Enum, /* T_MOE */
1270 bt_UChar, /* T_UCHAR */
1271 bt_UShort, /* T_USHORT */
1272 bt_UInt, /* T_UINT */
1273 bt_ULong /* T_ULONG */
1274 };
1275
1276 /* Convert COFF storage class to ECOFF storage class. */
1277 static sc_t map_coff_storage[ (int)C_MAX ] = {
1278 sc_Nil, /* 0: C_NULL */
1279 sc_Abs, /* 1: C_AUTO auto var */
1280 sc_Undefined, /* 2: C_EXT external */
1281 sc_Data, /* 3: C_STAT static */
1282 sc_Register, /* 4: C_REG register */
1283 sc_Undefined, /* 5: C_EXTDEF ??? */
1284 sc_Text, /* 6: C_LABEL label */
1285 sc_Text, /* 7: C_ULABEL user label */
1286 sc_Info, /* 8: C_MOS member of struct */
1287 sc_Abs, /* 9: C_ARG argument */
1288 sc_Info, /* 10: C_STRTAG struct tag */
1289 sc_Info, /* 11: C_MOU member of union */
1290 sc_Info, /* 12: C_UNTAG union tag */
1291 sc_Info, /* 13: C_TPDEF typedef */
1292 sc_Data, /* 14: C_USTATIC ??? */
1293 sc_Info, /* 15: C_ENTAG enum tag */
1294 sc_Info, /* 16: C_MOE member of enum */
1295 sc_Register, /* 17: C_REGPARM register parameter */
1296 sc_Bits, /* 18; C_FIELD bitfield */
1297 sc_Nil, /* 19 */
1298 sc_Nil, /* 20 */
1299 sc_Nil, /* 21 */
1300 sc_Nil, /* 22 */
1301 sc_Nil, /* 23 */
1302 sc_Nil, /* 24 */
1303 sc_Nil, /* 25 */
1304 sc_Nil, /* 26 */
1305 sc_Nil, /* 27 */
1306 sc_Nil, /* 28 */
1307 sc_Nil, /* 29 */
1308 sc_Nil, /* 30 */
1309 sc_Nil, /* 31 */
1310 sc_Nil, /* 32 */
1311 sc_Nil, /* 33 */
1312 sc_Nil, /* 34 */
1313 sc_Nil, /* 35 */
1314 sc_Nil, /* 36 */
1315 sc_Nil, /* 37 */
1316 sc_Nil, /* 38 */
1317 sc_Nil, /* 39 */
1318 sc_Nil, /* 40 */
1319 sc_Nil, /* 41 */
1320 sc_Nil, /* 42 */
1321 sc_Nil, /* 43 */
1322 sc_Nil, /* 44 */
1323 sc_Nil, /* 45 */
1324 sc_Nil, /* 46 */
1325 sc_Nil, /* 47 */
1326 sc_Nil, /* 48 */
1327 sc_Nil, /* 49 */
1328 sc_Nil, /* 50 */
1329 sc_Nil, /* 51 */
1330 sc_Nil, /* 52 */
1331 sc_Nil, /* 53 */
1332 sc_Nil, /* 54 */
1333 sc_Nil, /* 55 */
1334 sc_Nil, /* 56 */
1335 sc_Nil, /* 57 */
1336 sc_Nil, /* 58 */
1337 sc_Nil, /* 59 */
1338 sc_Nil, /* 60 */
1339 sc_Nil, /* 61 */
1340 sc_Nil, /* 62 */
1341 sc_Nil, /* 63 */
1342 sc_Nil, /* 64 */
1343 sc_Nil, /* 65 */
1344 sc_Nil, /* 66 */
1345 sc_Nil, /* 67 */
1346 sc_Nil, /* 68 */
1347 sc_Nil, /* 69 */
1348 sc_Nil, /* 70 */
1349 sc_Nil, /* 71 */
1350 sc_Nil, /* 72 */
1351 sc_Nil, /* 73 */
1352 sc_Nil, /* 74 */
1353 sc_Nil, /* 75 */
1354 sc_Nil, /* 76 */
1355 sc_Nil, /* 77 */
1356 sc_Nil, /* 78 */
1357 sc_Nil, /* 79 */
1358 sc_Nil, /* 80 */
1359 sc_Nil, /* 81 */
1360 sc_Nil, /* 82 */
1361 sc_Nil, /* 83 */
1362 sc_Nil, /* 84 */
1363 sc_Nil, /* 85 */
1364 sc_Nil, /* 86 */
1365 sc_Nil, /* 87 */
1366 sc_Nil, /* 88 */
1367 sc_Nil, /* 89 */
1368 sc_Nil, /* 90 */
1369 sc_Nil, /* 91 */
1370 sc_Nil, /* 92 */
1371 sc_Nil, /* 93 */
1372 sc_Nil, /* 94 */
1373 sc_Nil, /* 95 */
1374 sc_Nil, /* 96 */
1375 sc_Nil, /* 97 */
1376 sc_Nil, /* 98 */
1377 sc_Nil, /* 99 */
1378 sc_Text, /* 100: C_BLOCK block start/end */
1379 sc_Text, /* 101: C_FCN function start/end */
1380 sc_Info, /* 102: C_EOS end of struct/union/enum */
1381 sc_Nil, /* 103: C_FILE file start */
1382 sc_Nil, /* 104: C_LINE line number */
1383 sc_Nil, /* 105: C_ALIAS combined type info */
1384 sc_Nil, /* 106: C_HIDDEN ??? */
1385 };
1386
1387 /* Convert COFF storage class to ECOFF symbol type. */
1388 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1389 st_Nil, /* 0: C_NULL */
1390 st_Local, /* 1: C_AUTO auto var */
1391 st_Global, /* 2: C_EXT external */
1392 st_Static, /* 3: C_STAT static */
1393 st_Local, /* 4: C_REG register */
1394 st_Global, /* 5: C_EXTDEF ??? */
1395 st_Label, /* 6: C_LABEL label */
1396 st_Label, /* 7: C_ULABEL user label */
1397 st_Member, /* 8: C_MOS member of struct */
1398 st_Param, /* 9: C_ARG argument */
1399 st_Block, /* 10: C_STRTAG struct tag */
1400 st_Member, /* 11: C_MOU member of union */
1401 st_Block, /* 12: C_UNTAG union tag */
1402 st_Typedef, /* 13: C_TPDEF typedef */
1403 st_Static, /* 14: C_USTATIC ??? */
1404 st_Block, /* 15: C_ENTAG enum tag */
1405 st_Member, /* 16: C_MOE member of enum */
1406 st_Param, /* 17: C_REGPARM register parameter */
1407 st_Member, /* 18; C_FIELD bitfield */
1408 st_Nil, /* 19 */
1409 st_Nil, /* 20 */
1410 st_Nil, /* 21 */
1411 st_Nil, /* 22 */
1412 st_Nil, /* 23 */
1413 st_Nil, /* 24 */
1414 st_Nil, /* 25 */
1415 st_Nil, /* 26 */
1416 st_Nil, /* 27 */
1417 st_Nil, /* 28 */
1418 st_Nil, /* 29 */
1419 st_Nil, /* 30 */
1420 st_Nil, /* 31 */
1421 st_Nil, /* 32 */
1422 st_Nil, /* 33 */
1423 st_Nil, /* 34 */
1424 st_Nil, /* 35 */
1425 st_Nil, /* 36 */
1426 st_Nil, /* 37 */
1427 st_Nil, /* 38 */
1428 st_Nil, /* 39 */
1429 st_Nil, /* 40 */
1430 st_Nil, /* 41 */
1431 st_Nil, /* 42 */
1432 st_Nil, /* 43 */
1433 st_Nil, /* 44 */
1434 st_Nil, /* 45 */
1435 st_Nil, /* 46 */
1436 st_Nil, /* 47 */
1437 st_Nil, /* 48 */
1438 st_Nil, /* 49 */
1439 st_Nil, /* 50 */
1440 st_Nil, /* 51 */
1441 st_Nil, /* 52 */
1442 st_Nil, /* 53 */
1443 st_Nil, /* 54 */
1444 st_Nil, /* 55 */
1445 st_Nil, /* 56 */
1446 st_Nil, /* 57 */
1447 st_Nil, /* 58 */
1448 st_Nil, /* 59 */
1449 st_Nil, /* 60 */
1450 st_Nil, /* 61 */
1451 st_Nil, /* 62 */
1452 st_Nil, /* 63 */
1453 st_Nil, /* 64 */
1454 st_Nil, /* 65 */
1455 st_Nil, /* 66 */
1456 st_Nil, /* 67 */
1457 st_Nil, /* 68 */
1458 st_Nil, /* 69 */
1459 st_Nil, /* 70 */
1460 st_Nil, /* 71 */
1461 st_Nil, /* 72 */
1462 st_Nil, /* 73 */
1463 st_Nil, /* 74 */
1464 st_Nil, /* 75 */
1465 st_Nil, /* 76 */
1466 st_Nil, /* 77 */
1467 st_Nil, /* 78 */
1468 st_Nil, /* 79 */
1469 st_Nil, /* 80 */
1470 st_Nil, /* 81 */
1471 st_Nil, /* 82 */
1472 st_Nil, /* 83 */
1473 st_Nil, /* 84 */
1474 st_Nil, /* 85 */
1475 st_Nil, /* 86 */
1476 st_Nil, /* 87 */
1477 st_Nil, /* 88 */
1478 st_Nil, /* 89 */
1479 st_Nil, /* 90 */
1480 st_Nil, /* 91 */
1481 st_Nil, /* 92 */
1482 st_Nil, /* 93 */
1483 st_Nil, /* 94 */
1484 st_Nil, /* 95 */
1485 st_Nil, /* 96 */
1486 st_Nil, /* 97 */
1487 st_Nil, /* 98 */
1488 st_Nil, /* 99 */
1489 st_Block, /* 100: C_BLOCK block start/end */
1490 st_Proc, /* 101: C_FCN function start/end */
1491 st_End, /* 102: C_EOS end of struct/union/enum */
1492 st_File, /* 103: C_FILE file start */
1493 st_Nil, /* 104: C_LINE line number */
1494 st_Nil, /* 105: C_ALIAS combined type info */
1495 st_Nil, /* 106: C_HIDDEN ??? */
1496 };
1497
1498 /* Map COFF derived types to ECOFF type qualifiers. */
1499 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1500 tq_Nil, /* 0: DT_NON no more qualifiers */
1501 tq_Ptr, /* 1: DT_PTR pointer */
1502 tq_Proc, /* 2: DT_FCN function */
1503 tq_Array, /* 3: DT_ARY array */
1504 };
1505
1506
1507 /* Keep track of different sized allocation requests. */
1508 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1509
1510 \f
1511 /* Pointers and such to the original symbol table that is read in. */
1512 static struct filehdr orig_file_header; /* global object file header */
1513
1514 static HDRR orig_sym_hdr; /* symbolic header on input */
1515 static char *orig_linenum; /* line numbers */
1516 static DNR *orig_dense; /* dense numbers */
1517 static PDR *orig_procs; /* procedures */
1518 static SYMR *orig_local_syms; /* local symbols */
1519 static OPTR *orig_opt_syms; /* optimization symbols */
1520 static AUXU *orig_aux_syms; /* auxiliary symbols */
1521 static char *orig_local_strs; /* local strings */
1522 static char *orig_ext_strs; /* external strings */
1523 static FDR *orig_files; /* file descriptors */
1524 static symint_t *orig_rfds; /* relative file desc's */
1525 static EXTR *orig_ext_syms; /* external symbols */
1526
1527 /* Macros to convert an index into a given object within the original
1528 symbol table. */
1529 #define CHECK(num,max,str) \
1530 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1531
1532 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1533 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1534 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1535 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1536 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1537 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1538 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1539 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1540 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1541 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1542 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1543
1544 /* Various other statics. */
1545 static HDRR symbolic_header; /* symbolic header */
1546 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1547 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1548 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1549 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1550 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1551 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1552 static long file_offset = 0; /* current file offset */
1553 static long max_file_offset = 0; /* maximum file offset */
1554 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1555 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1556 static char *progname = (char *) 0; /* program name for errors */
1557 static const char *input_name = "stdin"; /* name of input file */
1558 static char *object_name = (char *) 0; /* tmp. name of object file */
1559 static char *obj_in_name = (char *) 0; /* name of input object file */
1560 static char *cur_line_start = (char *) 0; /* current line read in */
1561 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1562 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1563 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1564 static long line_number = 0; /* current input line number */
1565 static int debug = 0; /* trace functions */
1566 static int version = 0; /* print version # */
1567 static int had_errors = 0; /* != 0 if errors were found */
1568 static int rename_output = 0; /* != 0 if rename output file*/
1569 static int delete_input = 0; /* != 0 if delete input after done */
1570 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1571
1572
1573 /* Pseudo symbol to use when putting stabs into the symbol table. */
1574 #ifndef STABS_SYMBOL
1575 #define STABS_SYMBOL "@stabs"
1576 #endif
1577
1578 static char stabs_symbol[] = STABS_SYMBOL;
1579
1580 \f
1581 /* Forward reference for functions. See the definition for more details. */
1582
1583 #ifndef STATIC
1584 #define STATIC static
1585 #endif
1586
1587 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1588
1589 STATIC shash_t *hash_string __proto((const char *,
1590 Ptrdiff_t,
1591 shash_t **,
1592 symint_t *));
1593
1594 STATIC symint_t add_string __proto((varray_t *,
1595 shash_t **,
1596 const char *,
1597 const char *,
1598 shash_t **));
1599
1600 STATIC symint_t add_local_symbol
1601 __proto((const char *,
1602 const char *,
1603 st_t,
1604 sc_t,
1605 symint_t,
1606 symint_t));
1607
1608 STATIC symint_t add_ext_symbol __proto((const char *,
1609 const char *,
1610 st_t,
1611 sc_t,
1612 long,
1613 symint_t,
1614 int));
1615
1616 STATIC symint_t add_aux_sym_symint
1617 __proto((symint_t));
1618
1619 STATIC symint_t add_aux_sym_rndx
1620 __proto((int, symint_t));
1621
1622 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1623 hash_state_t,
1624 thash_t **));
1625
1626 STATIC tag_t * get_tag __proto((const char *,
1627 const char *,
1628 symint_t,
1629 bt_t));
1630
1631 STATIC void add_unknown_tag __proto((tag_t *));
1632
1633 STATIC void add_procedure __proto((const char *,
1634 const char *));
1635
1636 STATIC void add_file __proto((const char *,
1637 const char *));
1638
1639 STATIC void add_bytes __proto((varray_t *,
1640 char *,
1641 Size_t));
1642
1643 STATIC void add_varray_page __proto((varray_t *));
1644
1645 STATIC void update_headers __proto((void));
1646
1647 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1648 STATIC void write_object __proto((void));
1649 STATIC const char *st_to_string __proto((st_t));
1650 STATIC const char *sc_to_string __proto((sc_t));
1651 STATIC char *read_line __proto((void));
1652 STATIC void parse_input __proto((void));
1653 STATIC void mark_stabs __proto((const char *));
1654 STATIC void parse_begin __proto((const char *));
1655 STATIC void parse_bend __proto((const char *));
1656 STATIC void parse_def __proto((const char *));
1657 STATIC void parse_end __proto((const char *));
1658 STATIC void parse_ent __proto((const char *));
1659 STATIC void parse_file __proto((const char *));
1660 STATIC void parse_stabs_common
1661 __proto((const char *, const char *, const char *));
1662 STATIC void parse_stabs __proto((const char *));
1663 STATIC void parse_stabn __proto((const char *));
1664 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1665 STATIC void copy_object __proto((void));
1666
1667 STATIC void catch_signal __proto((int));
1668 STATIC page_t *allocate_page __proto((void));
1669
1670 STATIC page_t *allocate_multiple_pages
1671 __proto((Size_t));
1672
1673 STATIC void free_multiple_pages
1674 __proto((page_t *, Size_t));
1675
1676 #ifndef MALLOC_CHECK
1677 STATIC page_t *allocate_cluster
1678 __proto((Size_t));
1679 #endif
1680
1681 STATIC forward_t *allocate_forward __proto((void));
1682 STATIC scope_t *allocate_scope __proto((void));
1683 STATIC shash_t *allocate_shash __proto((void));
1684 STATIC tag_t *allocate_tag __proto((void));
1685 STATIC thash_t *allocate_thash __proto((void));
1686 STATIC thead_t *allocate_thead __proto((void));
1687 STATIC vlinks_t *allocate_vlinks __proto((void));
1688
1689 STATIC void free_forward __proto((forward_t *));
1690 STATIC void free_scope __proto((scope_t *));
1691 STATIC void free_tag __proto((tag_t *));
1692 STATIC void free_thead __proto((thead_t *));
1693
1694 STATIC char *local_index __proto((const char *, int));
1695 STATIC char *local_rindex __proto((const char *, int));
1696 STATIC const char *my_strsignal __proto((int));
1697
1698 extern char *mktemp __proto((char *));
1699 extern long strtol __proto((const char *, char **, int));
1700
1701 extern char *optarg;
1702 extern int optind;
1703 extern int opterr;
1704 extern char *version_string;
1705 \f
1706 /* List of assembler pseudo ops and beginning sequences that need
1707 special actions. Someday, this should be a hash table, and such,
1708 but for now a linear list of names and calls to memcmp will
1709 do...... */
1710
1711 typedef struct _pseudo_ops {
1712 const char *name; /* pseudo-op in ascii */
1713 int len; /* length of name to compare */
1714 void (*func) __proto((const char *)); /* function to handle line */
1715 } pseudo_ops_t;
1716
1717 static pseudo_ops_t pseudo_ops[] = {
1718 { "#.def", sizeof("#.def")-1, parse_def },
1719 { "#.begin", sizeof("#.begin")-1, parse_begin },
1720 { "#.bend", sizeof("#.bend")-1, parse_bend },
1721 { ".end", sizeof(".end")-1, parse_end },
1722 { ".ent", sizeof(".ent")-1, parse_ent },
1723 { ".file", sizeof(".file")-1, parse_file },
1724 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1725 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1726 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1727 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1728 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1729 };
1730
1731 \f
1732 /* Add a page to a varray object. */
1733
1734 STATIC void
1735 add_varray_page (vp)
1736 varray_t *vp; /* varray to add page to */
1737 {
1738 vlinks_t *new_links = allocate_vlinks ();
1739
1740 #ifdef MALLOC_CHECK
1741 if (vp->object_size > 1)
1742 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1743 else
1744 #endif
1745 new_links->datum = allocate_page ();
1746
1747 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1748 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1749
1750 new_links->start_index = vp->num_allocated;
1751 vp->objects_last_page = 0;
1752
1753 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1754 vp->first = vp->last = new_links;
1755 else
1756 { /* 2nd or greater allocation */
1757 new_links->prev = vp->last;
1758 vp->last->next = new_links;
1759 vp->last = new_links;
1760 }
1761 }
1762
1763 \f
1764 /* Compute hash code (from tree.c) */
1765
1766 #define HASHBITS 30
1767
1768 STATIC shash_t *
1769 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1770 const char *text; /* ptr to text to hash */
1771 Ptrdiff_t hash_len; /* length of the text */
1772 shash_t **hash_tbl; /* hash table */
1773 symint_t *ret_hash_index; /* ptr to store hash index */
1774 {
1775 register unsigned long hi;
1776 register Ptrdiff_t i;
1777 register shash_t *ptr;
1778 register int first_ch = *text;
1779
1780 hi = hash_len;
1781 for (i = 0; i < hash_len; i++)
1782 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1783
1784 hi &= (1 << HASHBITS) - 1;
1785 hi %= SHASH_SIZE;
1786
1787 if (ret_hash_index != (symint_t *) 0)
1788 *ret_hash_index = hi;
1789
1790 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1791 if ((symint_t) hash_len == ptr->len
1792 && first_ch == ptr->string[0]
1793 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1794 break;
1795
1796 return ptr;
1797 }
1798
1799 \f
1800 /* Add a string (and null pad) to one of the string tables. A
1801 consequence of hashing strings, is that we don't let strings
1802 cross page boundaries. The extra nulls will be ignored. */
1803
1804 STATIC symint_t
1805 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1806 varray_t *vp; /* string virtual array */
1807 shash_t **hash_tbl; /* ptr to hash table */
1808 const char *start; /* 1st byte in string */
1809 const char *end_p1; /* 1st byte after string */
1810 shash_t **ret_hash; /* return hash pointer */
1811 {
1812 register Ptrdiff_t len = end_p1 - start;
1813 register shash_t *hash_ptr;
1814 symint_t hi;
1815
1816 if (len >= (Ptrdiff_t) PAGE_USIZE)
1817 fatal ("String too big (%ld bytes)", (long) len);
1818
1819 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1820 if (hash_ptr == (shash_t *) 0)
1821 {
1822 register char *p;
1823
1824 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1825 {
1826 vp->num_allocated
1827 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1828 add_varray_page (vp);
1829 }
1830
1831 hash_ptr = allocate_shash ();
1832 hash_ptr->next = hash_tbl[hi];
1833 hash_tbl[hi] = hash_ptr;
1834
1835 hash_ptr->len = len;
1836 hash_ptr->indx = vp->num_allocated;
1837 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1838
1839 vp->objects_last_page += len+1;
1840 vp->num_allocated += len+1;
1841
1842 while (len-- > 0)
1843 *p++ = *start++;
1844
1845 *p = '\0';
1846 }
1847
1848 if (ret_hash != (shash_t **) 0)
1849 *ret_hash = hash_ptr;
1850
1851 return hash_ptr->indx;
1852 }
1853
1854 \f
1855 /* Add a local symbol. */
1856
1857 STATIC symint_t
1858 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1859 const char *str_start; /* first byte in string */
1860 const char *str_end_p1; /* first byte after string */
1861 st_t type; /* symbol type */
1862 sc_t storage; /* storage class */
1863 symint_t value; /* value of symbol */
1864 symint_t indx; /* index to local/aux. syms */
1865 {
1866 register symint_t ret;
1867 register SYMR *psym;
1868 register scope_t *pscope;
1869 register thead_t *ptag_head;
1870 register tag_t *ptag;
1871 register tag_t *ptag_next;
1872 register varray_t *vp = &cur_file_ptr->symbols;
1873 register int scope_delta = 0;
1874 shash_t *hash_ptr = (shash_t *) 0;
1875
1876 if (vp->objects_last_page == vp->objects_per_page)
1877 add_varray_page (vp);
1878
1879 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1880
1881 psym->value = value;
1882 psym->st = (unsigned) type;
1883 psym->sc = (unsigned) storage;
1884 psym->index = indx;
1885 psym->iss = (str_start == (const char *) 0)
1886 ? 0
1887 : add_string (&cur_file_ptr->strings,
1888 &cur_file_ptr->shash_head[0],
1889 str_start,
1890 str_end_p1,
1891 &hash_ptr);
1892
1893 ret = vp->num_allocated++;
1894
1895 if (MIPS_IS_STAB(psym))
1896 return ret;
1897
1898 /* Save the symbol within the hash table if this is a static
1899 item, and it has a name. */
1900 if (hash_ptr != (shash_t *) 0
1901 && (type == st_Global || type == st_Static || type == st_Label
1902 || type == st_Proc || type == st_StaticProc))
1903 hash_ptr->sym_ptr = psym;
1904
1905 /* push or pop a scope if appropriate. */
1906 switch (type)
1907 {
1908 default:
1909 break;
1910
1911 case st_File: /* beginning of file */
1912 case st_Proc: /* procedure */
1913 case st_StaticProc: /* static procedure */
1914 case st_Block: /* begin scope */
1915 pscope = allocate_scope ();
1916 pscope->prev = cur_file_ptr->cur_scope;
1917 pscope->lsym = psym;
1918 pscope->lnumber = ret;
1919 pscope->type = type;
1920 cur_file_ptr->cur_scope = pscope;
1921
1922 if (type != st_File)
1923 scope_delta = 1;
1924
1925 /* For every block type except file, struct, union, or
1926 enumeration blocks, push a level on the tag stack. We omit
1927 file types, so that tags can span file boundaries. */
1928 if (type != st_File && storage != sc_Info)
1929 {
1930 ptag_head = allocate_thead ();
1931 ptag_head->first_tag = 0;
1932 ptag_head->prev = cur_tag_head;
1933 cur_tag_head = ptag_head;
1934 }
1935 break;
1936
1937 case st_End:
1938 pscope = cur_file_ptr->cur_scope;
1939 if (pscope == (scope_t *)0)
1940 error ("internal error, too many st_End's");
1941
1942 else
1943 {
1944 st_t begin_type = (st_t) pscope->lsym->st;
1945
1946 if (begin_type != st_File)
1947 scope_delta = -1;
1948
1949 /* Except for file, structure, union, or enumeration end
1950 blocks remove all tags created within this scope. */
1951 if (begin_type != st_File && storage != sc_Info)
1952 {
1953 ptag_head = cur_tag_head;
1954 cur_tag_head = ptag_head->prev;
1955
1956 for (ptag = ptag_head->first_tag;
1957 ptag != (tag_t *) 0;
1958 ptag = ptag_next)
1959 {
1960 if (ptag->forward_ref != (forward_t *) 0)
1961 add_unknown_tag (ptag);
1962
1963 ptag_next = ptag->same_block;
1964 ptag->hash_ptr->tag_ptr = ptag->same_name;
1965 free_tag (ptag);
1966 }
1967
1968 free_thead (ptag_head);
1969 }
1970
1971 cur_file_ptr->cur_scope = pscope->prev;
1972 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1973
1974 if (storage != sc_Info)
1975 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1976
1977 if (begin_type == st_File || begin_type == st_Block)
1978 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1979
1980 /* Functions push two or more aux words as follows:
1981 1st word: index+1 of the end symbol
1982 2nd word: type of the function (plus any aux words needed).
1983 Also, tie the external pointer back to the function begin symbol. */
1984 else
1985 {
1986 symint_t type;
1987 pscope->lsym->index = add_aux_sym_symint (ret+1);
1988 type = add_aux_sym_tir (&last_func_type_info,
1989 hash_no,
1990 &cur_file_ptr->thash_head[0]);
1991 if (last_func_eptr)
1992 {
1993 last_func_eptr->ifd = cur_file_ptr->file_index;
1994
1995 /* The index for an external st_Proc symbol is the index
1996 of the st_Proc symbol in the local symbol table. */
1997 last_func_eptr->asym.index = psym->index;
1998 }
1999 }
2000
2001 free_scope (pscope);
2002 }
2003 }
2004
2005 cur_file_ptr->nested_scopes += scope_delta;
2006
2007 if (debug && type != st_File
2008 && (debug > 2 || type == st_Block || type == st_End
2009 || type == st_Proc || type == st_StaticProc))
2010 {
2011 const char *sc_str = sc_to_string (storage);
2012 const char *st_str = st_to_string (type);
2013 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2014
2015 fprintf (stderr,
2016 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2017 value, depth, sc_str);
2018
2019 if (str_start && str_end_p1 - str_start > 0)
2020 fprintf (stderr, " st= %-11s name= %.*s\n",
2021 st_str, (int) (str_end_p1 - str_start), str_start);
2022 else
2023 {
2024 Size_t len = strlen (st_str);
2025 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2026 }
2027 }
2028
2029 return ret;
2030 }
2031
2032 \f
2033 /* Add an external symbol. */
2034
2035 STATIC symint_t
2036 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2037 const char *str_start; /* first byte in string */
2038 const char *str_end_p1; /* first byte after string */
2039 st_t type; /* symbol type */
2040 sc_t storage; /* storage class */
2041 long value; /* value of symbol */
2042 symint_t indx; /* index to local/aux. syms */
2043 int ifd; /* file index */
2044 {
2045 register EXTR *psym;
2046 register varray_t *vp = &ext_symbols;
2047 shash_t *hash_ptr = (shash_t *) 0;
2048
2049 if (debug > 1)
2050 {
2051 const char *sc_str = sc_to_string (storage);
2052 const char *st_str = st_to_string (type);
2053
2054 fprintf (stderr,
2055 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2056 value, ifd, sc_str);
2057
2058 if (str_start && str_end_p1 - str_start > 0)
2059 fprintf (stderr, " st= %-11s name= %.*s\n",
2060 st_str, (int) (str_end_p1 - str_start), str_start);
2061 else
2062 fprintf (stderr, " st= %s\n", st_str);
2063 }
2064
2065 if (vp->objects_last_page == vp->objects_per_page)
2066 add_varray_page (vp);
2067
2068 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2069
2070 psym->ifd = ifd;
2071 psym->asym.value = value;
2072 psym->asym.st = (unsigned) type;
2073 psym->asym.sc = (unsigned) storage;
2074 psym->asym.index = indx;
2075 psym->asym.iss = (str_start == (const char *) 0)
2076 ? 0
2077 : add_string (&ext_strings,
2078 &ext_str_hash[0],
2079 str_start,
2080 str_end_p1,
2081 &hash_ptr);
2082
2083 hash_ptr->esym_ptr = psym;
2084 return vp->num_allocated++;
2085 }
2086
2087 \f
2088 /* Add an auxiliary symbol (passing a symint). */
2089
2090 STATIC symint_t
2091 add_aux_sym_symint (aux_word)
2092 symint_t aux_word; /* auxiliary information word */
2093 {
2094 register AUXU *aux_ptr;
2095 register efdr_t *file_ptr = cur_file_ptr;
2096 register varray_t *vp = &file_ptr->aux_syms;
2097
2098 if (vp->objects_last_page == vp->objects_per_page)
2099 add_varray_page (vp);
2100
2101 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2102 aux_ptr->isym = aux_word;
2103
2104 return vp->num_allocated++;
2105 }
2106
2107
2108 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2109
2110 STATIC symint_t
2111 add_aux_sym_rndx (file_index, sym_index)
2112 int file_index;
2113 symint_t sym_index;
2114 {
2115 register AUXU *aux_ptr;
2116 register efdr_t *file_ptr = cur_file_ptr;
2117 register varray_t *vp = &file_ptr->aux_syms;
2118
2119 if (vp->objects_last_page == vp->objects_per_page)
2120 add_varray_page (vp);
2121
2122 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2123 aux_ptr->rndx.rfd = file_index;
2124 aux_ptr->rndx.index = sym_index;
2125
2126 return vp->num_allocated++;
2127 }
2128
2129 \f
2130 /* Add an auxiliary symbol (passing the basic type and possibly
2131 type qualifiers). */
2132
2133 STATIC symint_t
2134 add_aux_sym_tir (t, state, hash_tbl)
2135 type_info_t *t; /* current type information */
2136 hash_state_t state; /* whether to hash type or not */
2137 thash_t **hash_tbl; /* pointer to hash table to use */
2138 {
2139 register AUXU *aux_ptr;
2140 register efdr_t *file_ptr = cur_file_ptr;
2141 register varray_t *vp = &file_ptr->aux_syms;
2142 static AUXU init_aux;
2143 symint_t ret;
2144 int i;
2145 AUXU aux;
2146
2147 aux = init_aux;
2148 aux.ti.bt = (int) t->basic_type;
2149 aux.ti.continued = 0;
2150 aux.ti.fBitfield = t->bitfield;
2151
2152 aux.ti.tq0 = (int) t->type_qualifiers[0];
2153 aux.ti.tq1 = (int) t->type_qualifiers[1];
2154 aux.ti.tq2 = (int) t->type_qualifiers[2];
2155 aux.ti.tq3 = (int) t->type_qualifiers[3];
2156 aux.ti.tq4 = (int) t->type_qualifiers[4];
2157 aux.ti.tq5 = (int) t->type_qualifiers[5];
2158
2159
2160 /* For anything that adds additional information, we must not hash,
2161 so check here, and reset our state. */
2162
2163 if (state != hash_no
2164 && (t->type_qualifiers[0] == tq_Array
2165 || t->type_qualifiers[1] == tq_Array
2166 || t->type_qualifiers[2] == tq_Array
2167 || t->type_qualifiers[3] == tq_Array
2168 || t->type_qualifiers[4] == tq_Array
2169 || t->type_qualifiers[5] == tq_Array
2170 || t->basic_type == bt_Struct
2171 || t->basic_type == bt_Union
2172 || t->basic_type == bt_Enum
2173 || t->bitfield
2174 || t->num_dims > 0))
2175 state = hash_no;
2176
2177 /* See if we can hash this type, and save some space, but some types
2178 can't be hashed (because they contain arrays or continuations),
2179 and others can be put into the hash list, but cannot use existing
2180 types because other aux entries precede this one. */
2181
2182 if (state != hash_no)
2183 {
2184 register thash_t *hash_ptr;
2185 register symint_t hi;
2186
2187 hi = aux.isym & ((1 << HASHBITS) - 1);
2188 hi %= THASH_SIZE;
2189
2190 for (hash_ptr = hash_tbl[hi];
2191 hash_ptr != (thash_t *) 0;
2192 hash_ptr = hash_ptr->next)
2193 {
2194 if (aux.isym == hash_ptr->type.isym)
2195 break;
2196 }
2197
2198 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2199 return hash_ptr->indx;
2200
2201 if (hash_ptr == (thash_t *) 0)
2202 {
2203 hash_ptr = allocate_thash ();
2204 hash_ptr->next = hash_tbl[hi];
2205 hash_ptr->type = aux;
2206 hash_ptr->indx = vp->num_allocated;
2207 hash_tbl[hi] = hash_ptr;
2208 }
2209 }
2210
2211 /* Everything is set up, add the aux symbol. */
2212 if (vp->objects_last_page == vp->objects_per_page)
2213 add_varray_page (vp);
2214
2215 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2216 *aux_ptr = aux;
2217
2218 ret = vp->num_allocated++;
2219
2220 /* Add bitfield length if it exists.
2221
2222 NOTE: Mips documentation claims bitfield goes at the end of the
2223 AUX record, but the DECstation compiler emits it here.
2224 (This would only make a difference for enum bitfields.)
2225
2226 Also note: We use the last size given since gcc may emit 2
2227 for an enum bitfield. */
2228
2229 if (t->bitfield)
2230 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2231
2232
2233 /* Add tag information if needed. Structure, union, and enum
2234 references add 2 aux symbols: a [file index, symbol index]
2235 pointer to the structure type, and the current file index. */
2236
2237 if (t->basic_type == bt_Struct
2238 || t->basic_type == bt_Union
2239 || t->basic_type == bt_Enum)
2240 {
2241 register symint_t file_index = t->tag_ptr->ifd;
2242 register symint_t sym_index = t->tag_ptr->indx;
2243
2244 if (t->unknown_tag)
2245 {
2246 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2247 (void) add_aux_sym_symint ((symint_t)-1);
2248 }
2249 else if (sym_index != indexNil)
2250 {
2251 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2252 (void) add_aux_sym_symint (file_index);
2253 }
2254 else
2255 {
2256 register forward_t *forward_ref = allocate_forward ();
2257
2258 forward_ref->type_ptr = aux_ptr;
2259 forward_ref->next = t->tag_ptr->forward_ref;
2260 t->tag_ptr->forward_ref = forward_ref;
2261
2262 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2263 forward_ref->index_ptr
2264 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2265
2266 (void) add_aux_sym_symint (file_index);
2267 forward_ref->ifd_ptr
2268 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2269 }
2270 }
2271
2272 /* Add information about array bounds if they exist. */
2273 for (i = 0; i < t->num_dims; i++)
2274 {
2275 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2276 cur_file_ptr->int_type);
2277
2278 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2279 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2280 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2281 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2282 ? 0
2283 : (t->sizes[i] * 8) / t->dimensions[i]);
2284 };
2285
2286 /* NOTE: Mips documentation claims that the bitfield width goes here.
2287 But it needs to be emitted earlier. */
2288
2289 return ret;
2290 }
2291
2292 \f
2293 /* Add a tag to the tag table (unless it already exists). */
2294
2295 STATIC tag_t *
2296 get_tag (tag_start, tag_end_p1, indx, basic_type)
2297 const char *tag_start; /* 1st byte of tag name */
2298 const char *tag_end_p1; /* 1st byte after tag name */
2299 symint_t indx; /* index of tag start block */
2300 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2301 {
2302 shash_t *hash_ptr;
2303 tag_t *tag_ptr;
2304 hash_ptr = hash_string (tag_start,
2305 tag_end_p1 - tag_start,
2306 &tag_hash[0],
2307 (symint_t *) 0);
2308
2309 if (hash_ptr != (shash_t *) 0
2310 && hash_ptr->tag_ptr != (tag_t *) 0)
2311 {
2312 tag_ptr = hash_ptr->tag_ptr;
2313 if (indx != indexNil)
2314 {
2315 tag_ptr->basic_type = basic_type;
2316 tag_ptr->ifd = cur_file_ptr->file_index;
2317 tag_ptr->indx = indx;
2318 }
2319 return tag_ptr;
2320 }
2321
2322 (void) add_string (&tag_strings,
2323 &tag_hash[0],
2324 tag_start,
2325 tag_end_p1,
2326 &hash_ptr);
2327
2328 tag_ptr = allocate_tag ();
2329 tag_ptr->forward_ref = (forward_t *) 0;
2330 tag_ptr->hash_ptr = hash_ptr;
2331 tag_ptr->same_name = hash_ptr->tag_ptr;
2332 tag_ptr->basic_type = basic_type;
2333 tag_ptr->indx = indx;
2334 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2335 tag_ptr->same_block = cur_tag_head->first_tag;
2336
2337 cur_tag_head->first_tag = tag_ptr;
2338 hash_ptr->tag_ptr = tag_ptr;
2339
2340 return tag_ptr;
2341 }
2342
2343 \f
2344 /* Add an unknown {struct, union, enum} tag. */
2345
2346 STATIC void
2347 add_unknown_tag (ptag)
2348 tag_t *ptag; /* pointer to tag information */
2349 {
2350 shash_t *hash_ptr = ptag->hash_ptr;
2351 char *name_start = hash_ptr->string;
2352 char *name_end_p1 = name_start + hash_ptr->len;
2353 forward_t *f_next = ptag->forward_ref;
2354 forward_t *f_cur;
2355 int sym_index;
2356 int file_index = cur_file_ptr->file_index;
2357
2358 if (debug > 1)
2359 {
2360 const char *agg_type = "{unknown aggregate type}";
2361 switch (ptag->basic_type)
2362 {
2363 case bt_Struct: agg_type = "struct"; break;
2364 case bt_Union: agg_type = "union"; break;
2365 case bt_Enum: agg_type = "enum"; break;
2366 default: break;
2367 }
2368
2369 fprintf (stderr, "unknown %s %.*s found\n",
2370 agg_type, (int) hash_ptr->len, name_start);
2371 }
2372
2373 sym_index = add_local_symbol (name_start,
2374 name_end_p1,
2375 st_Block,
2376 sc_Info,
2377 (symint_t) 0,
2378 (symint_t) 0);
2379
2380 (void) add_local_symbol (name_start,
2381 name_end_p1,
2382 st_End,
2383 sc_Info,
2384 (symint_t) 0,
2385 (symint_t) 0);
2386
2387 while (f_next != (forward_t *) 0)
2388 {
2389 f_cur = f_next;
2390 f_next = f_next->next;
2391
2392 f_cur->ifd_ptr->isym = file_index;
2393 f_cur->index_ptr->rndx.index = sym_index;
2394
2395 free_forward (f_cur);
2396 }
2397
2398 return;
2399 }
2400
2401 \f
2402 /* Add a procedure to the current file's list of procedures, and record
2403 this is the current procedure. If the assembler created a PDR for
2404 this procedure, use that to initialize the current PDR. */
2405
2406 STATIC void
2407 add_procedure (func_start, func_end_p1)
2408 const char *func_start; /* 1st byte of func name */
2409 const char *func_end_p1; /* 1st byte after func name */
2410 {
2411 register PDR *new_proc_ptr;
2412 register efdr_t *file_ptr = cur_file_ptr;
2413 register varray_t *vp = &file_ptr->procs;
2414 register symint_t value = 0;
2415 register st_t proc_type = st_Proc;
2416 register shash_t *shash_ptr = hash_string (func_start,
2417 func_end_p1 - func_start,
2418 &orig_str_hash[0],
2419 (symint_t *) 0);
2420
2421 if (debug)
2422 fputc ('\n', stderr);
2423
2424 if (vp->objects_last_page == vp->objects_per_page)
2425 add_varray_page (vp);
2426
2427 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2428
2429 vp->num_allocated++;
2430
2431
2432 /* Did the assembler create this procedure? If so, get the PDR information. */
2433 cur_oproc_ptr = (PDR *) 0;
2434 if (shash_ptr != (shash_t *) 0)
2435 {
2436 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2437 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2438
2439 if (old_proc_ptr != (PDR *) 0
2440 && sym_ptr != (SYMR *) 0
2441 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2442 {
2443 cur_oproc_begin = sym_ptr;
2444 cur_oproc_end = shash_ptr->end_ptr;
2445 value = sym_ptr->value;
2446
2447 cur_oproc_ptr = old_proc_ptr;
2448 proc_type = (st_t)sym_ptr->st;
2449 *new_proc_ptr = *old_proc_ptr; /* initialize */
2450 }
2451 }
2452
2453 if (cur_oproc_ptr == (PDR *) 0)
2454 error ("Did not find a PDR block for %.*s",
2455 (int) (func_end_p1 - func_start), func_start);
2456
2457 /* Determine the start of symbols. */
2458 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2459
2460 /* Push the start of the function. */
2461 (void) add_local_symbol (func_start, func_end_p1,
2462 proc_type, sc_Text,
2463 value,
2464 (symint_t) 0);
2465 }
2466
2467 \f
2468 /* Add a new filename, and set up all of the file relative
2469 virtual arrays (strings, symbols, aux syms, etc.). Record
2470 where the current file structure lives. */
2471
2472 STATIC void
2473 add_file (file_start, file_end_p1)
2474 const char *file_start; /* first byte in string */
2475 const char *file_end_p1; /* first byte after string */
2476 {
2477 static char zero_bytes[2] = { '\0', '\0' };
2478
2479 register Ptrdiff_t len = file_end_p1 - file_start;
2480 register int first_ch = *file_start;
2481 register efdr_t *file_ptr;
2482
2483 if (debug)
2484 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2485
2486 /* See if the file has already been created. */
2487 for (file_ptr = first_file;
2488 file_ptr != (efdr_t *) 0;
2489 file_ptr = file_ptr->next_file)
2490 {
2491 if (first_ch == file_ptr->name[0]
2492 && file_ptr->name[len] == '\0'
2493 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2494 {
2495 cur_file_ptr = file_ptr;
2496 break;
2497 }
2498 }
2499
2500 /* If this is a new file, create it. */
2501 if (file_ptr == (efdr_t *) 0)
2502 {
2503 if (file_desc.objects_last_page == file_desc.objects_per_page)
2504 add_varray_page (&file_desc);
2505
2506 file_ptr = cur_file_ptr
2507 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2508 *file_ptr = init_file;
2509
2510 file_ptr->file_index = file_desc.num_allocated++;
2511
2512 /* Allocate the string hash table. */
2513 file_ptr->shash_head = (shash_t **) allocate_page ();
2514
2515 /* Make sure 0 byte in string table is null */
2516 add_string (&file_ptr->strings,
2517 &file_ptr->shash_head[0],
2518 &zero_bytes[0],
2519 &zero_bytes[0],
2520 (shash_t **) 0);
2521
2522 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2523 fatal ("Filename goes over one page boundary.");
2524
2525 /* Push the start of the filename. We assume that the filename
2526 will be stored at string offset 1. */
2527 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2528 (symint_t) 0, (symint_t) 0);
2529 file_ptr->fdr.rss = 1;
2530 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2531 file_ptr->name_len = file_end_p1 - file_start;
2532
2533 /* Update the linked list of file descriptors. */
2534 *last_file_ptr = file_ptr;
2535 last_file_ptr = &file_ptr->next_file;
2536
2537 /* Add void & int types to the file (void should be first to catch
2538 errant 0's within the index fields). */
2539 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2540 hash_yes,
2541 &cur_file_ptr->thash_head[0]);
2542
2543 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2544 hash_yes,
2545 &cur_file_ptr->thash_head[0]);
2546 }
2547 }
2548
2549 \f
2550 /* Add a stream of random bytes to a varray. */
2551
2552 STATIC void
2553 add_bytes (vp, input_ptr, nitems)
2554 varray_t *vp; /* virtual array to add too */
2555 char *input_ptr; /* start of the bytes */
2556 Size_t nitems; /* # items to move */
2557 {
2558 register Size_t move_items;
2559 register Size_t move_bytes;
2560 register char *ptr;
2561
2562 while (nitems > 0)
2563 {
2564 if (vp->objects_last_page >= vp->objects_per_page)
2565 add_varray_page (vp);
2566
2567 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2568 move_items = vp->objects_per_page - vp->objects_last_page;
2569 if (move_items > nitems)
2570 move_items = nitems;
2571
2572 move_bytes = move_items * vp->object_size;
2573 nitems -= move_items;
2574
2575 if (move_bytes >= 32)
2576 {
2577 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2578 input_ptr += move_bytes;
2579 }
2580 else
2581 {
2582 while (move_bytes-- > 0)
2583 *ptr++ = *input_ptr++;
2584 }
2585 }
2586 }
2587
2588 \f
2589 /* Convert storage class to string. */
2590
2591 STATIC const char *
2592 sc_to_string(storage_class)
2593 sc_t storage_class;
2594 {
2595 switch(storage_class)
2596 {
2597 case sc_Nil: return "Nil,";
2598 case sc_Text: return "Text,";
2599 case sc_Data: return "Data,";
2600 case sc_Bss: return "Bss,";
2601 case sc_Register: return "Register,";
2602 case sc_Abs: return "Abs,";
2603 case sc_Undefined: return "Undefined,";
2604 case sc_CdbLocal: return "CdbLocal,";
2605 case sc_Bits: return "Bits,";
2606 case sc_CdbSystem: return "CdbSystem,";
2607 case sc_RegImage: return "RegImage,";
2608 case sc_Info: return "Info,";
2609 case sc_UserStruct: return "UserStruct,";
2610 case sc_SData: return "SData,";
2611 case sc_SBss: return "SBss,";
2612 case sc_RData: return "RData,";
2613 case sc_Var: return "Var,";
2614 case sc_Common: return "Common,";
2615 case sc_SCommon: return "SCommon,";
2616 case sc_VarRegister: return "VarRegister,";
2617 case sc_Variant: return "Variant,";
2618 case sc_SUndefined: return "SUndefined,";
2619 case sc_Init: return "Init,";
2620 case sc_Max: return "Max,";
2621 }
2622
2623 return "???,";
2624 }
2625
2626 \f
2627 /* Convert symbol type to string. */
2628
2629 STATIC const char *
2630 st_to_string(symbol_type)
2631 st_t symbol_type;
2632 {
2633 switch(symbol_type)
2634 {
2635 case st_Nil: return "Nil,";
2636 case st_Global: return "Global,";
2637 case st_Static: return "Static,";
2638 case st_Param: return "Param,";
2639 case st_Local: return "Local,";
2640 case st_Label: return "Label,";
2641 case st_Proc: return "Proc,";
2642 case st_Block: return "Block,";
2643 case st_End: return "End,";
2644 case st_Member: return "Member,";
2645 case st_Typedef: return "Typedef,";
2646 case st_File: return "File,";
2647 case st_RegReloc: return "RegReloc,";
2648 case st_Forward: return "Forward,";
2649 case st_StaticProc: return "StaticProc,";
2650 case st_Constant: return "Constant,";
2651 case st_Str: return "String,";
2652 case st_Number: return "Number,";
2653 case st_Expr: return "Expr,";
2654 case st_Type: return "Type,";
2655 case st_Max: return "Max,";
2656 }
2657
2658 return "???,";
2659 }
2660
2661 \f
2662 /* Read a line from standard input, and return the start of the buffer
2663 (which is grows if the line is too big). We split lines at the
2664 semi-colon, and return each logical line independently. */
2665
2666 STATIC char *
2667 read_line __proto((void))
2668 {
2669 static int line_split_p = 0;
2670 register int string_p = 0;
2671 register int comment_p = 0;
2672 register int ch;
2673 register char *ptr;
2674
2675 if (cur_line_start == (char *) 0)
2676 { /* allocate initial page */
2677 cur_line_start = (char *) allocate_page ();
2678 cur_line_alloc = PAGE_SIZE;
2679 }
2680
2681 if (!line_split_p)
2682 line_number++;
2683
2684 line_split_p = 0;
2685 cur_line_nbytes = 0;
2686
2687 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2688 {
2689 if (++cur_line_nbytes >= cur_line_alloc-1)
2690 {
2691 register int num_pages = cur_line_alloc / PAGE_SIZE;
2692 register char *old_buffer = cur_line_start;
2693
2694 cur_line_alloc += PAGE_SIZE;
2695 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2696 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2697
2698 ptr = cur_line_start + cur_line_nbytes - 1;
2699 }
2700
2701 if (ch == '\n')
2702 {
2703 *ptr++ = '\n';
2704 *ptr = '\0';
2705 cur_line_ptr = cur_line_start;
2706 return cur_line_ptr;
2707 }
2708
2709 else if (ch == '\0')
2710 error ("Null character found in input");
2711
2712 else if (!comment_p)
2713 {
2714 if (ch == '"')
2715 string_p = !string_p;
2716
2717 else if (ch == '#')
2718 comment_p++;
2719
2720 else if (ch == ';' && !string_p)
2721 {
2722 line_split_p = 1;
2723 *ptr++ = '\n';
2724 *ptr = '\0';
2725 cur_line_ptr = cur_line_start;
2726 return cur_line_ptr;
2727 }
2728 }
2729 }
2730
2731 if (ferror (stdin))
2732 pfatal_with_name (input_name);
2733
2734 cur_line_ptr = (char *) 0;
2735 return (char *) 0;
2736 }
2737
2738 \f
2739 /* Parse #.begin directives which have a label as the first argument
2740 which gives the location of the start of the block. */
2741
2742 STATIC void
2743 parse_begin (start)
2744 const char *start; /* start of directive */
2745 {
2746 const char *end_p1; /* end of label */
2747 int ch;
2748 shash_t *hash_ptr; /* hash pointer to lookup label */
2749
2750 if (cur_file_ptr == (efdr_t *) 0)
2751 {
2752 error ("#.begin directive without a preceding .file directive");
2753 return;
2754 }
2755
2756 if (cur_proc_ptr == (PDR *) 0)
2757 {
2758 error ("#.begin directive without a preceding .ent directive");
2759 return;
2760 }
2761
2762 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2763 ;
2764
2765 hash_ptr = hash_string (start,
2766 end_p1 - start,
2767 &orig_str_hash[0],
2768 (symint_t *) 0);
2769
2770 if (hash_ptr == (shash_t *) 0)
2771 {
2772 error ("Label %.*s not found for #.begin",
2773 (int) (end_p1 - start), start);
2774 return;
2775 }
2776
2777 if (cur_oproc_begin == (SYMR *) 0)
2778 {
2779 error ("Procedure table %.*s not found for #.begin",
2780 (int) (end_p1 - start), start);
2781 return;
2782 }
2783
2784 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2785 st_Block, sc_Text,
2786 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2787 (symint_t) 0);
2788 }
2789
2790 \f
2791 /* Parse #.bend directives which have a label as the first argument
2792 which gives the location of the end of the block. */
2793
2794 STATIC void
2795 parse_bend (start)
2796 const char *start; /* start of directive */
2797 {
2798 const char *end_p1; /* end of label */
2799 int ch;
2800 shash_t *hash_ptr; /* hash pointer to lookup label */
2801
2802 if (cur_file_ptr == (efdr_t *) 0)
2803 {
2804 error ("#.begin directive without a preceding .file directive");
2805 return;
2806 }
2807
2808 if (cur_proc_ptr == (PDR *) 0)
2809 {
2810 error ("#.bend directive without a preceding .ent directive");
2811 return;
2812 }
2813
2814 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2815 ;
2816
2817 hash_ptr = hash_string (start,
2818 end_p1 - start,
2819 &orig_str_hash[0],
2820 (symint_t *) 0);
2821
2822 if (hash_ptr == (shash_t *) 0)
2823 {
2824 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2825 return;
2826 }
2827
2828 if (cur_oproc_begin == (SYMR *) 0)
2829 {
2830 error ("Procedure table %.*s not found for #.bend",
2831 (int) (end_p1 - start), start);
2832 return;
2833 }
2834
2835 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2836 st_End, sc_Text,
2837 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2838 (symint_t) 0);
2839 }
2840
2841 \f
2842 /* Parse #.def directives, which are contain standard COFF subdirectives
2843 to describe the debugging format. These subdirectives include:
2844
2845 .scl specify storage class
2846 .val specify a value
2847 .endef specify end of COFF directives
2848 .type specify the type
2849 .size specify the size of an array
2850 .dim specify an array dimension
2851 .tag specify a tag for a struct, union, or enum. */
2852
2853 STATIC void
2854 parse_def (name_start)
2855 const char *name_start; /* start of directive */
2856 {
2857 const char *dir_start; /* start of current directive*/
2858 const char *dir_end_p1; /* end+1 of current directive*/
2859 const char *arg_start; /* start of current argument */
2860 const char *arg_end_p1; /* end+1 of current argument */
2861 const char *name_end_p1; /* end+1 of label */
2862 const char *tag_start = (const char *) 0; /* start of tag name */
2863 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2864 sc_t storage_class = sc_Nil;
2865 st_t symbol_type = st_Nil;
2866 type_info_t t;
2867 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2868 int is_function = 0; /* != 0 if function */
2869 symint_t value = 0;
2870 symint_t indx = cur_file_ptr->void_type;
2871 int error_line = 0;
2872 symint_t arg_number;
2873 symint_t temp_array[ N_TQ ];
2874 int arg_was_number;
2875 int ch, i;
2876 Ptrdiff_t len;
2877
2878 static int inside_enumeration = 0; /* is this an enumeration? */
2879
2880
2881 /* Initialize the type information. */
2882 t = type_info_init;
2883
2884
2885 /* Search for the end of the name being defined. */
2886 /* Allow spaces and such in names for G++ templates, which produce stabs
2887 that look like:
2888
2889 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2890
2891 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2892 ;
2893
2894 if (ch == '\0')
2895 {
2896 error_line = __LINE__;
2897 saber_stop ();
2898 goto bomb_out;
2899 }
2900
2901 /* Parse the remaining subdirectives now. */
2902 dir_start = name_end_p1+1;
2903 for (;;)
2904 {
2905 while ((ch = *dir_start) == ' ' || ch == '\t')
2906 ++dir_start;
2907
2908 if (ch != '.')
2909 {
2910 error_line = __LINE__;
2911 saber_stop ();
2912 goto bomb_out;
2913 }
2914
2915 /* Are we done? */
2916 if (dir_start[1] == 'e'
2917 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2918 break;
2919
2920 /* Pick up the subdirective now */
2921 for (dir_end_p1 = dir_start+1;
2922 (ch = *dir_end_p1) != ' ' && ch != '\t';
2923 dir_end_p1++)
2924 {
2925 if (ch == '\0' || ISSPACE (ch))
2926 {
2927 error_line = __LINE__;
2928 saber_stop ();
2929 goto bomb_out;
2930 }
2931 }
2932
2933 /* Pick up the subdirective argument now. */
2934 arg_was_number = arg_number = 0;
2935 arg_end_p1 = (const char *) 0;
2936 arg_start = dir_end_p1+1;
2937 ch = *arg_start;
2938 while (ch == ' ' || ch == '\t')
2939 ch = *++arg_start;
2940
2941 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2942 {
2943 int ch2;
2944 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2945 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2946 arg_was_number++;
2947 }
2948
2949 else if (ch == '\0' || ISSPACE (ch))
2950 {
2951 error_line = __LINE__;
2952 saber_stop ();
2953 goto bomb_out;
2954 }
2955
2956 if (!arg_was_number)
2957 {
2958 /* Allow spaces and such in names for G++ templates. */
2959 for (arg_end_p1 = arg_start+1;
2960 (ch = *arg_end_p1) != ';' && ch != '\0';
2961 arg_end_p1++)
2962 ;
2963
2964 if (ch == '\0')
2965 {
2966 error_line = __LINE__;
2967 saber_stop ();
2968 goto bomb_out;
2969 }
2970 }
2971
2972 /* Classify the directives now. */
2973 len = dir_end_p1 - dir_start;
2974 switch (dir_start[1])
2975 {
2976 default:
2977 error_line = __LINE__;
2978 saber_stop ();
2979 goto bomb_out;
2980
2981 case 'd':
2982 if (len == sizeof (".dim")-1
2983 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2984 && arg_was_number)
2985 {
2986 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2987
2988 *t_ptr = arg_number;
2989 while (*arg_end_p1 == ',' && arg_was_number)
2990 {
2991 arg_start = arg_end_p1+1;
2992 ch = *arg_start;
2993 while (ch == ' ' || ch == '\t')
2994 ch = *++arg_start;
2995
2996 arg_was_number = 0;
2997 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2998 {
2999 int ch2;
3000 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3001 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3002 arg_was_number++;
3003
3004 if (t_ptr == &temp_array[0])
3005 {
3006 error_line = __LINE__;
3007 saber_stop ();
3008 goto bomb_out;
3009 }
3010
3011 *--t_ptr = arg_number;
3012 }
3013 }
3014
3015 /* Reverse order of dimensions. */
3016 while (t_ptr <= &temp_array[ N_TQ-1 ])
3017 {
3018 if (t.num_dims >= N_TQ-1)
3019 {
3020 error_line = __LINE__;
3021 saber_stop ();
3022 goto bomb_out;
3023 }
3024
3025 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3026 }
3027 break;
3028 }
3029 else
3030 {
3031 error_line = __LINE__;
3032 saber_stop ();
3033 goto bomb_out;
3034 }
3035
3036
3037 case 's':
3038 if (len == sizeof (".scl")-1
3039 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3040 && arg_was_number
3041 && arg_number < ((symint_t) C_MAX))
3042 {
3043 /* If the symbol is a static or external, we have
3044 already gotten the appropriate type and class, so
3045 make sure we don't override those values. This is
3046 needed because there are some type and classes that
3047 are not in COFF, such as short data, etc. */
3048 if (symbol_type == st_Nil)
3049 {
3050 symbol_type = map_coff_sym_type[arg_number];
3051 storage_class = map_coff_storage [arg_number];
3052 }
3053 break;
3054 }
3055
3056 else if (len == sizeof (".size")-1
3057 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3058 && arg_was_number)
3059 {
3060 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3061
3062 *t_ptr = arg_number;
3063 while (*arg_end_p1 == ',' && arg_was_number)
3064 {
3065 arg_start = arg_end_p1+1;
3066 ch = *arg_start;
3067 while (ch == ' ' || ch == '\t')
3068 ch = *++arg_start;
3069
3070 arg_was_number = 0;
3071 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3072 {
3073 int ch2;
3074 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3075 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3076 arg_was_number++;
3077
3078 if (t_ptr == &temp_array[0])
3079 {
3080 error_line = __LINE__;
3081 saber_stop ();
3082 goto bomb_out;
3083 }
3084
3085 *--t_ptr = arg_number;
3086 }
3087 }
3088
3089 /* Reverse order of sizes. */
3090 while (t_ptr <= &temp_array[ N_TQ-1 ])
3091 {
3092 if (t.num_sizes >= N_TQ-1)
3093 {
3094 error_line = __LINE__;
3095 saber_stop ();
3096 goto bomb_out;
3097 }
3098
3099 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3100 }
3101 break;
3102 }
3103
3104 else
3105 {
3106 error_line = __LINE__;
3107 saber_stop ();
3108 goto bomb_out;
3109 }
3110
3111
3112 case 't':
3113 if (len == sizeof (".type")-1
3114 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3115 && arg_was_number)
3116 {
3117 tq_t *tq_ptr = &t.type_qualifiers[0];
3118
3119 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3120 t.basic_type = map_coff_types [(int)t.orig_type];
3121 for (i = N_TQ-1; i >= 0; i--)
3122 {
3123 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3124 & N_TMASK);
3125
3126 if (dt != (int)DT_NON)
3127 *tq_ptr++ = map_coff_derived_type [dt];
3128 }
3129
3130 /* If this is a function, ignore it, so that we don't get
3131 two entries (one from the .ent, and one for the .def
3132 that precedes it). Save the type information so that
3133 the end block can properly add it after the begin block
3134 index. For MIPS knows what reason, we must strip off
3135 the function type at this point. */
3136 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3137 {
3138 is_function = 1;
3139 tq_ptr[-1] = tq_Nil;
3140 }
3141
3142 break;
3143 }
3144
3145 else if (len == sizeof (".tag")-1
3146 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3147 {
3148 tag_start = arg_start;
3149 tag_end_p1 = arg_end_p1;
3150 break;
3151 }
3152
3153 else
3154 {
3155 error_line = __LINE__;
3156 saber_stop ();
3157 goto bomb_out;
3158 }
3159
3160
3161 case 'v':
3162 if (len == sizeof (".val")-1
3163 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3164 {
3165 if (arg_was_number)
3166 value = arg_number;
3167
3168 /* If the value is not an integer value, it must be the
3169 name of a static or global item. Look up the name in
3170 the original symbol table to pick up the storage
3171 class, symbol type, etc. */
3172 else
3173 {
3174 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3175 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3176
3177 ext_hash_ptr = hash_string (arg_start,
3178 arg_end_p1 - arg_start,
3179 &ext_str_hash[0],
3180 (symint_t *) 0);
3181
3182 if (ext_hash_ptr != (shash_t *) 0
3183 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3184 eptr = ext_hash_ptr->esym_ptr;
3185
3186 orig_hash_ptr = hash_string (arg_start,
3187 arg_end_p1 - arg_start,
3188 &orig_str_hash[0],
3189 (symint_t *) 0);
3190
3191 if ((orig_hash_ptr == (shash_t *) 0
3192 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3193 && eptr == (EXTR *) 0)
3194 {
3195 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3196 (int) (arg_end_p1 - arg_start),
3197 arg_start);
3198 value = 0;
3199 }
3200 else
3201 {
3202 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3203 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3204 ? orig_hash_ptr->sym_ptr
3205 : &eptr->asym;
3206
3207 symbol_type = (st_t) ptr->st;
3208 storage_class = (sc_t) ptr->sc;
3209 value = ptr->value;
3210 }
3211 }
3212 break;
3213 }
3214 else
3215 {
3216 error_line = __LINE__;
3217 saber_stop ();
3218 goto bomb_out;
3219 }
3220 }
3221
3222 /* Set up to find next directive. */
3223 dir_start = arg_end_p1 + 1;
3224 }
3225
3226
3227 if (storage_class == sc_Bits)
3228 {
3229 t.bitfield = 1;
3230 t.extra_sizes = 1;
3231 }
3232 else
3233 t.extra_sizes = 0;
3234
3235 if (t.num_dims > 0)
3236 {
3237 int num_real_sizes = t.num_sizes - t.extra_sizes;
3238 int diff = t.num_dims - num_real_sizes;
3239 int i = t.num_dims - 1;
3240 int j;
3241
3242 if (num_real_sizes != 1 || diff < 0)
3243 {
3244 error_line = __LINE__;
3245 saber_stop ();
3246 goto bomb_out;
3247 }
3248
3249 /* If this is an array, make sure the same number of dimensions
3250 and sizes were passed, creating extra sizes for multiply
3251 dimensioned arrays if not passed. */
3252
3253 if (diff)
3254 {
3255 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3256 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3257
3258 t.num_sizes = i + 1;
3259 for ( i--; i >= 0; i-- )
3260 {
3261 if (t.dimensions[ i+1 ])
3262 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3263 else
3264 t.sizes[ i ] = t.sizes[ i+1 ];
3265 }
3266 }
3267 }
3268
3269 /* Except for enumeration members & begin/ending of scopes, put the
3270 type word in the aux. symbol table. */
3271
3272 if (symbol_type == st_Block || symbol_type == st_End)
3273 indx = 0;
3274
3275 else if (inside_enumeration)
3276 indx = cur_file_ptr->void_type;
3277
3278 else
3279 {
3280 if (t.basic_type == bt_Struct
3281 || t.basic_type == bt_Union
3282 || t.basic_type == bt_Enum)
3283 {
3284 if (tag_start == (char *) 0)
3285 {
3286 error ("No tag specified for %.*s",
3287 (int) (name_end_p1 - name_start),
3288 name_start);
3289 return;
3290 }
3291
3292 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3293 t.basic_type);
3294 }
3295
3296 if (is_function)
3297 {
3298 last_func_type_info = t;
3299 last_func_eptr = eptr;
3300 return;
3301 }
3302
3303 indx = add_aux_sym_tir (&t,
3304 hash_yes,
3305 &cur_file_ptr->thash_head[0]);
3306 }
3307
3308
3309 /* If this is an external or static symbol, update the appropriate
3310 external symbol. */
3311
3312 if (eptr != (EXTR *) 0
3313 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3314 {
3315 eptr->ifd = cur_file_ptr->file_index;
3316 eptr->asym.index = indx;
3317 }
3318
3319
3320 /* Do any last minute adjustments that are necessary. */
3321 switch (symbol_type)
3322 {
3323 default:
3324 break;
3325
3326
3327 /* For the beginning of structs, unions, and enumerations, the
3328 size info needs to be passed in the value field. */
3329
3330 case st_Block:
3331 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3332 {
3333 error_line = __LINE__;
3334 saber_stop ();
3335 goto bomb_out;
3336 }
3337
3338 else
3339 value = t.sizes[0];
3340
3341 inside_enumeration = (t.orig_type == T_ENUM);
3342 break;
3343
3344
3345 /* For the end of structs, unions, and enumerations, omit the
3346 name which is always ".eos". This needs to be done last, so
3347 that any error reporting above gives the correct name. */
3348
3349 case st_End:
3350 name_start = name_end_p1 = (const char *) 0;
3351 value = inside_enumeration = 0;
3352 break;
3353
3354
3355 /* Members of structures and unions that aren't bitfields, need
3356 to adjust the value from a byte offset to a bit offset.
3357 Members of enumerations do not have the value adjusted, and
3358 can be distinguished by indx == indexNil. For enumerations,
3359 update the maximum enumeration value. */
3360
3361 case st_Member:
3362 if (!t.bitfield && !inside_enumeration)
3363 value *= 8;
3364
3365 break;
3366 }
3367
3368
3369 /* Add the symbol, except for global symbols outside of functions,
3370 for which the external symbol table is fine enough. */
3371
3372 if (eptr == (EXTR *) 0
3373 || eptr->asym.st == (int)st_Nil
3374 || cur_proc_ptr != (PDR *) 0)
3375 {
3376 symint_t isym = add_local_symbol (name_start, name_end_p1,
3377 symbol_type, storage_class,
3378 value,
3379 indx);
3380
3381 /* deal with struct, union, and enum tags. */
3382 if (symbol_type == st_Block)
3383 {
3384 /* Create or update the tag information. */
3385 tag_t *tag_ptr = get_tag (name_start,
3386 name_end_p1,
3387 isym,
3388 t.basic_type);
3389
3390 /* If there are any forward references, fill in the appropriate
3391 file and symbol indexes. */
3392
3393 symint_t file_index = cur_file_ptr->file_index;
3394 forward_t *f_next = tag_ptr->forward_ref;
3395 forward_t *f_cur;
3396
3397 while (f_next != (forward_t *) 0)
3398 {
3399 f_cur = f_next;
3400 f_next = f_next->next;
3401
3402 f_cur->ifd_ptr->isym = file_index;
3403 f_cur->index_ptr->rndx.index = isym;
3404
3405 free_forward (f_cur);
3406 }
3407
3408 tag_ptr->forward_ref = (forward_t *) 0;
3409 }
3410 }
3411
3412 /* Normal return */
3413 return;
3414
3415 /* Error return, issue message. */
3416 bomb_out:
3417 if (error_line)
3418 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3419 else
3420 error ("compiler error, badly formed #.def");
3421
3422 return;
3423 }
3424
3425 \f
3426 /* Parse .end directives. */
3427
3428 STATIC void
3429 parse_end (start)
3430 const char *start; /* start of directive */
3431 {
3432 register const char *start_func, *end_func_p1;
3433 register int ch;
3434 register symint_t value;
3435 register FDR *orig_fdr;
3436
3437 if (cur_file_ptr == (efdr_t *) 0)
3438 {
3439 error (".end directive without a preceding .file directive");
3440 return;
3441 }
3442
3443 if (cur_proc_ptr == (PDR *) 0)
3444 {
3445 error (".end directive without a preceding .ent directive");
3446 return;
3447 }
3448
3449 /* Get the function name, skipping whitespace. */
3450 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3451 ;
3452
3453 ch = *start_func;
3454 if (!IS_ASM_IDENT (ch))
3455 {
3456 error (".end directive has no name");
3457 return;
3458 }
3459
3460 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3461 ;
3462
3463
3464 /* Get the value field for creating the end from the original object
3465 file (which we find by locating the procedure start, and using the
3466 pointer to the end+1 block and backing up. The index points to a
3467 two word aux. symbol, whose first word is the index of the end
3468 symbol, and the second word is the type of the function return
3469 value. */
3470
3471 orig_fdr = cur_file_ptr->orig_fdr;
3472 value = 0;
3473 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3474 value = cur_oproc_end->value;
3475
3476 else
3477 error ("Cannot find .end block for %.*s",
3478 (int) (end_func_p1 - start_func), start_func);
3479
3480 (void) add_local_symbol (start_func, end_func_p1,
3481 st_End, sc_Text,
3482 value,
3483 (symint_t) 0);
3484
3485 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3486 }
3487
3488 \f
3489 /* Parse .ent directives. */
3490
3491 STATIC void
3492 parse_ent (start)
3493 const char *start; /* start of directive */
3494 {
3495 register const char *start_func, *end_func_p1;
3496 register int ch;
3497
3498 if (cur_file_ptr == (efdr_t *) 0)
3499 {
3500 error (".ent directive without a preceding .file directive");
3501 return;
3502 }
3503
3504 if (cur_proc_ptr != (PDR *) 0)
3505 {
3506 error ("second .ent directive found before .end directive");
3507 return;
3508 }
3509
3510 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3511 ;
3512
3513 ch = *start_func;
3514 if (!IS_ASM_IDENT (ch))
3515 {
3516 error (".ent directive has no name");
3517 return;
3518 }
3519
3520 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3521 ;
3522
3523 (void) add_procedure (start_func, end_func_p1);
3524 }
3525
3526 \f
3527 /* Parse .file directives. */
3528
3529 STATIC void
3530 parse_file (start)
3531 const char *start; /* start of directive */
3532 {
3533 char *p;
3534 register char *start_name, *end_name_p1;
3535
3536 (void) strtol (start, &p, 0);
3537 if (start == p
3538 || (start_name = local_index (p, '"')) == (char *) 0
3539 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3540 {
3541 error ("Invalid .file directive");
3542 return;
3543 }
3544
3545 if (cur_proc_ptr != (PDR *) 0)
3546 {
3547 error ("No way to handle .file within .ent/.end section");
3548 return;
3549 }
3550
3551 add_file (start_name, end_name_p1);
3552 }
3553
3554 \f
3555 /* Make sure the @stabs symbol is emitted. */
3556
3557 static void
3558 mark_stabs (start)
3559 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3560 {
3561 if (!stabs_seen)
3562 {
3563 /* Add a dummy @stabs symbol. */
3564 stabs_seen = 1;
3565 (void) add_local_symbol (stabs_symbol,
3566 stabs_symbol + sizeof (stabs_symbol),
3567 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3568
3569 }
3570 }
3571
3572 \f
3573 /* Parse .stabs directives.
3574
3575 .stabs directives have five fields:
3576 "string" a string, encoding the type information.
3577 code a numeric code, defined in <stab.h>
3578 0 a zero
3579 0 a zero or line number
3580 value a numeric value or an address.
3581
3582 If the value is relocatable, we transform this into:
3583 iss points as an index into string space
3584 value value from lookup of the name
3585 st st from lookup of the name
3586 sc sc from lookup of the name
3587 index code|CODE_MASK
3588
3589 If the value is not relocatable, we transform this into:
3590 iss points as an index into string space
3591 value value
3592 st st_Nil
3593 sc sc_Nil
3594 index code|CODE_MASK
3595
3596 .stabn directives have four fields (string is null):
3597 code a numeric code, defined in <stab.h>
3598 0 a zero
3599 0 a zero or a line number
3600 value a numeric value or an address. */
3601
3602 STATIC void
3603 parse_stabs_common (string_start, string_end, rest)
3604 const char *string_start; /* start of string or NULL */
3605 const char *string_end; /* end+1 of string or NULL */
3606 const char *rest; /* rest of the directive. */
3607 {
3608 efdr_t *save_file_ptr = cur_file_ptr;
3609 symint_t code;
3610 symint_t value;
3611 char *p;
3612 st_t st;
3613 sc_t sc;
3614 int ch;
3615
3616 if (stabs_seen == 0)
3617 mark_stabs ("");
3618
3619 /* Read code from stabs. */
3620 if (!ISDIGIT (*rest))
3621 {
3622 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3623 return;
3624 }
3625
3626 code = strtol (rest, &p, 0);
3627
3628 /* Line number stabs are handled differently, since they have two values,
3629 the line number and the address of the label. We use the index field
3630 (aka code) to hold the line number, and the value field to hold the
3631 address. The symbol type is st_Label, which should be different from
3632 the other stabs, so that gdb can recognize it. */
3633
3634 if (code == (int)N_SLINE)
3635 {
3636 SYMR *sym_ptr, dummy_symr;
3637 shash_t *shash_ptr;
3638
3639 /* Skip ,0, */
3640 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3641 {
3642 error ("Invalid line number .stabs/.stabn directive");
3643 return;
3644 }
3645
3646 code = strtol (p+3, &p, 0);
3647 ch = *++p;
3648 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3649 {
3650 error ("Invalid line number .stabs/.stabn directive");
3651 return;
3652 }
3653
3654 dummy_symr.index = code;
3655 if (dummy_symr.index != code)
3656 {
3657 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3658 code);
3659
3660 return;
3661 }
3662
3663 shash_ptr = hash_string (p,
3664 strlen (p) - 1,
3665 &orig_str_hash[0],
3666 (symint_t *) 0);
3667
3668 if (shash_ptr == (shash_t *) 0
3669 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3670 {
3671 error ("Invalid .stabs/.stabn directive, value not found");
3672 return;
3673 }
3674
3675 if ((st_t) sym_ptr->st != st_Label)
3676 {
3677 error ("Invalid line number .stabs/.stabn directive");
3678 return;
3679 }
3680
3681 st = st_Label;
3682 sc = (sc_t) sym_ptr->sc;
3683 value = sym_ptr->value;
3684 }
3685 else
3686 {
3687 /* Skip ,<num>,<num>, */
3688 if (*p++ != ',')
3689 goto failure;
3690 for (; ISDIGIT (*p); p++)
3691 ;
3692 if (*p++ != ',')
3693 goto failure;
3694 for (; ISDIGIT (*p); p++)
3695 ;
3696 if (*p++ != ',')
3697 goto failure;
3698 ch = *p;
3699 if (!IS_ASM_IDENT (ch) && ch != '-')
3700 {
3701 failure:
3702 error ("Invalid .stabs/.stabn directive, bad character");
3703 return;
3704 }
3705
3706 if (ISDIGIT (ch) || ch == '-')
3707 {
3708 st = st_Nil;
3709 sc = sc_Nil;
3710 value = strtol (p, &p, 0);
3711 if (*p != '\n')
3712 {
3713 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3714 return;
3715 }
3716 }
3717 else if (!IS_ASM_IDENT (ch))
3718 {
3719 error ("Invalid .stabs/.stabn directive, bad character");
3720 return;
3721 }
3722 else
3723 {
3724 SYMR *sym_ptr;
3725 shash_t *shash_ptr;
3726 const char *start, *end_p1;
3727
3728 start = p;
3729 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3730 {
3731 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3732 end_p1 = start + strlen(start) - 1;
3733 }
3734
3735 shash_ptr = hash_string (start,
3736 end_p1 - start,
3737 &orig_str_hash[0],
3738 (symint_t *) 0);
3739
3740 if (shash_ptr == (shash_t *) 0
3741 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3742 {
3743 shash_ptr = hash_string (start,
3744 end_p1 - start,
3745 &ext_str_hash[0],
3746 (symint_t *) 0);
3747
3748 if (shash_ptr == (shash_t *) 0
3749 || shash_ptr->esym_ptr == (EXTR *) 0)
3750 {
3751 error ("Invalid .stabs/.stabn directive, value not found");
3752 return;
3753 }
3754 else
3755 sym_ptr = &(shash_ptr->esym_ptr->asym);
3756 }
3757
3758 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3759 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3760 {
3761 sc = scNil;
3762 st = stNil;
3763 }
3764 else
3765 {
3766 sc = (sc_t) sym_ptr->sc;
3767 st = (st_t) sym_ptr->st;
3768 }
3769 value = sym_ptr->value;
3770
3771 ch = *end_p1++;
3772 if (ch != '\n')
3773 {
3774 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3775 || ((ch != '+') && (ch != '-')))
3776 {
3777 error ("Invalid .stabs/.stabn directive, badly formed value");
3778 return;
3779 }
3780 if (ch == '+')
3781 value += strtol (end_p1, &p, 0);
3782 else if (ch == '-')
3783 value -= strtol (end_p1, &p, 0);
3784
3785 if (*p != '\n')
3786 {
3787 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3788 return;
3789 }
3790 }
3791 }
3792 code = MIPS_MARK_STAB(code);
3793 }
3794
3795 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3796 /* Restore normal file type. */
3797 cur_file_ptr = save_file_ptr;
3798 }
3799
3800
3801 STATIC void
3802 parse_stabs (start)
3803 const char *start; /* start of directive */
3804 {
3805 const char *end = local_index (start+1, '"');
3806
3807 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3808 {
3809 error ("Invalid .stabs directive, no string");
3810 return;
3811 }
3812
3813 parse_stabs_common (start+1, end, end+2);
3814 }
3815
3816
3817 STATIC void
3818 parse_stabn (start)
3819 const char *start; /* start of directive */
3820 {
3821 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3822 }
3823
3824 \f
3825 /* Parse the input file, and write the lines to the output file
3826 if needed. */
3827
3828 STATIC void
3829 parse_input __proto((void))
3830 {
3831 register char *p;
3832 register Size_t i;
3833 register thead_t *ptag_head;
3834 register tag_t *ptag;
3835 register tag_t *ptag_next;
3836
3837 if (debug)
3838 fprintf (stderr, "\tinput\n");
3839
3840 /* Add a dummy scope block around the entire compilation unit for
3841 structures defined outside of blocks. */
3842 ptag_head = allocate_thead ();
3843 ptag_head->first_tag = 0;
3844 ptag_head->prev = cur_tag_head;
3845 cur_tag_head = ptag_head;
3846
3847 while ((p = read_line ()) != (char *) 0)
3848 {
3849 /* Skip leading blanks */
3850 while (ISSPACE ((unsigned char)*p))
3851 p++;
3852
3853 /* See if it's a directive we handle. If so, dispatch handler. */
3854 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3855 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3856 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3857 {
3858 p += pseudo_ops[i].len; /* skip to first argument */
3859 while (ISSPACE ((unsigned char)*p))
3860 p++;
3861
3862 (*pseudo_ops[i].func)( p );
3863 break;
3864 }
3865 }
3866
3867 /* Process any tags at global level. */
3868 ptag_head = cur_tag_head;
3869 cur_tag_head = ptag_head->prev;
3870
3871 for (ptag = ptag_head->first_tag;
3872 ptag != (tag_t *) 0;
3873 ptag = ptag_next)
3874 {
3875 if (ptag->forward_ref != (forward_t *) 0)
3876 add_unknown_tag (ptag);
3877
3878 ptag_next = ptag->same_block;
3879 ptag->hash_ptr->tag_ptr = ptag->same_name;
3880 free_tag (ptag);
3881 }
3882
3883 free_thead (ptag_head);
3884
3885 }
3886
3887 \f
3888 /* Update the global headers with the final offsets in preparation
3889 to write out the .T file. */
3890
3891 STATIC void
3892 update_headers __proto((void))
3893 {
3894 register symint_t i;
3895 register efdr_t *file_ptr;
3896
3897 /* Set up the symbolic header. */
3898 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3899 symbolic_header.magic = orig_sym_hdr.magic;
3900 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3901
3902 /* Set up global counts. */
3903 symbolic_header.issExtMax = ext_strings.num_allocated;
3904 symbolic_header.idnMax = dense_num.num_allocated;
3905 symbolic_header.ifdMax = file_desc.num_allocated;
3906 symbolic_header.iextMax = ext_symbols.num_allocated;
3907 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3908 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3909 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3910 symbolic_header.crfd = orig_sym_hdr.crfd;
3911
3912
3913 /* Loop through each file, figuring out how many local syms,
3914 line numbers, etc. there are. Also, put out end symbol
3915 for the filename. */
3916
3917 for (file_ptr = first_file;
3918 file_ptr != (efdr_t *) 0;
3919 file_ptr = file_ptr->next_file)
3920 {
3921 register SYMR *sym_start;
3922 register SYMR *sym;
3923 register SYMR *sym_end_p1;
3924 register FDR *fd_ptr = file_ptr->orig_fdr;
3925
3926 cur_file_ptr = file_ptr;
3927
3928 /* Copy st_Static symbols from the original local symbol table if
3929 they did not get added to the new local symbol table.
3930 This happens with stabs-in-ecoff or if the source file is
3931 compiled without debugging. */
3932 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3933 sym_end_p1 = sym_start + fd_ptr->csym;
3934 for (sym = sym_start; sym < sym_end_p1; sym++)
3935 {
3936 if ((st_t)sym->st == st_Static)
3937 {
3938 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3939 register Size_t len = strlen (str);
3940 register shash_t *hash_ptr;
3941
3942 /* Ignore internal labels. */
3943 if (str[0] == '$' && str[1] == 'L')
3944 continue;
3945 hash_ptr = hash_string (str,
3946 (Ptrdiff_t)len,
3947 &file_ptr->shash_head[0],
3948 (symint_t *) 0);
3949 if (hash_ptr == (shash_t *) 0)
3950 {
3951 (void) add_local_symbol (str, str + len,
3952 (st_t)sym->st, (sc_t)sym->sc,
3953 (symint_t)sym->value,
3954 (symint_t)indexNil);
3955 }
3956 }
3957 }
3958 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3959 st_End, sc_Text,
3960 (symint_t) 0,
3961 (symint_t) 0);
3962
3963 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3964 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3965 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3966
3967 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3968 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3969 symbolic_header.isymMax += file_ptr->fdr.csym;
3970
3971 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3972 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3973 symbolic_header.iauxMax += file_ptr->fdr.caux;
3974
3975 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3976 file_ptr->fdr.issBase = symbolic_header.issMax;
3977 symbolic_header.issMax += file_ptr->fdr.cbSs;
3978 }
3979
3980 #ifndef ALIGN_SYMTABLE_OFFSET
3981 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3982 #endif
3983
3984 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3985 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3986 if (i > 0)
3987 {
3988 symbolic_header.cbLineOffset = file_offset;
3989 file_offset += i;
3990 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3991 }
3992
3993 i = symbolic_header.ioptMax; /* optimization symbols */
3994 if (((long) i) > 0)
3995 {
3996 symbolic_header.cbOptOffset = file_offset;
3997 file_offset += i * sizeof (OPTR);
3998 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3999 }
4000
4001 i = symbolic_header.idnMax; /* dense numbers */
4002 if (i > 0)
4003 {
4004 symbolic_header.cbDnOffset = file_offset;
4005 file_offset += i * sizeof (DNR);
4006 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4007 }
4008
4009 i = symbolic_header.ipdMax; /* procedure tables */
4010 if (i > 0)
4011 {
4012 symbolic_header.cbPdOffset = file_offset;
4013 file_offset += i * sizeof (PDR);
4014 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4015 }
4016
4017 i = symbolic_header.isymMax; /* local symbols */
4018 if (i > 0)
4019 {
4020 symbolic_header.cbSymOffset = file_offset;
4021 file_offset += i * sizeof (SYMR);
4022 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4023 }
4024
4025 i = symbolic_header.iauxMax; /* aux syms. */
4026 if (i > 0)
4027 {
4028 symbolic_header.cbAuxOffset = file_offset;
4029 file_offset += i * sizeof (TIR);
4030 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4031 }
4032
4033 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4034 if (i > 0)
4035 {
4036 symbolic_header.cbSsOffset = file_offset;
4037 file_offset += i;
4038 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4039 }
4040
4041 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4042 if (i > 0)
4043 {
4044 symbolic_header.cbSsExtOffset = file_offset;
4045 file_offset += i;
4046 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4047 }
4048
4049 i = symbolic_header.ifdMax; /* file tables */
4050 if (i > 0)
4051 {
4052 symbolic_header.cbFdOffset = file_offset;
4053 file_offset += i * sizeof (FDR);
4054 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4055 }
4056
4057 i = symbolic_header.crfd; /* relative file descriptors */
4058 if (i > 0)
4059 {
4060 symbolic_header.cbRfdOffset = file_offset;
4061 file_offset += i * sizeof (symint_t);
4062 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4063 }
4064
4065 i = symbolic_header.iextMax; /* external symbols */
4066 if (i > 0)
4067 {
4068 symbolic_header.cbExtOffset = file_offset;
4069 file_offset += i * sizeof (EXTR);
4070 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4071 }
4072 }
4073
4074 \f
4075 /* Write out a varray at a given location. */
4076
4077 STATIC void
4078 write_varray (vp, offset, str)
4079 varray_t *vp; /* virtual array */
4080 off_t offset; /* offset to write varray to */
4081 const char *str; /* string to print out when tracing */
4082 {
4083 int num_write, sys_write;
4084 vlinks_t *ptr;
4085
4086 if (vp->num_allocated == 0)
4087 return;
4088
4089 if (debug)
4090 {
4091 fputs ("\twarray\tvp = ", stderr);
4092 fprintf (stderr, HOST_PTR_PRINTF, vp);
4093 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4094 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4095 }
4096
4097 if (file_offset != offset
4098 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4099 pfatal_with_name (object_name);
4100
4101 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4102 {
4103 num_write = (ptr->next == (vlinks_t *) 0)
4104 ? vp->objects_last_page * vp->object_size
4105 : vp->objects_per_page * vp->object_size;
4106
4107 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4108 if (sys_write <= 0)
4109 pfatal_with_name (object_name);
4110
4111 else if (sys_write != num_write)
4112 fatal ("Wrote %d bytes to %s, system returned %d",
4113 num_write,
4114 object_name,
4115 sys_write);
4116
4117 file_offset += num_write;
4118 }
4119 }
4120
4121 \f
4122 /* Write out the symbol table in the object file. */
4123
4124 STATIC void
4125 write_object __proto((void))
4126 {
4127 int sys_write;
4128 efdr_t *file_ptr;
4129 off_t offset;
4130
4131 if (debug)
4132 {
4133 fputs ("\n\twrite\tvp = ", stderr);
4134 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4135 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4136 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4137 }
4138
4139 sys_write = fwrite ((PTR_T) &symbolic_header,
4140 1,
4141 sizeof (symbolic_header),
4142 object_stream);
4143
4144 if (sys_write < 0)
4145 pfatal_with_name (object_name);
4146
4147 else if (sys_write != sizeof (symbolic_header))
4148 fatal ("Wrote %d bytes to %s, system returned %d",
4149 (int) sizeof (symbolic_header),
4150 object_name,
4151 sys_write);
4152
4153
4154 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4155
4156 if (symbolic_header.cbLine > 0) /* line numbers */
4157 {
4158 long sys_write;
4159
4160 if (file_offset != symbolic_header.cbLineOffset
4161 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4162 pfatal_with_name (object_name);
4163
4164 if (debug)
4165 {
4166 fputs ("\twrite\tvp = ", stderr);
4167 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4168 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4169 (long) symbolic_header.cbLineOffset,
4170 (long) symbolic_header.cbLine, "Line numbers");
4171 }
4172
4173 sys_write = fwrite ((PTR_T) orig_linenum,
4174 1,
4175 symbolic_header.cbLine,
4176 object_stream);
4177
4178 if (sys_write <= 0)
4179 pfatal_with_name (object_name);
4180
4181 else if (sys_write != symbolic_header.cbLine)
4182 fatal ("Wrote %ld bytes to %s, system returned %ld",
4183 (long) symbolic_header.cbLine,
4184 object_name,
4185 sys_write);
4186
4187 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4188 }
4189
4190 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4191 {
4192 long sys_write;
4193 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4194
4195 if (file_offset != symbolic_header.cbOptOffset
4196 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4197 pfatal_with_name (object_name);
4198
4199 if (debug)
4200 {
4201 fputs ("\twrite\tvp = ", stderr);
4202 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4203 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4204 (long) symbolic_header.cbOptOffset,
4205 num_write, "Optimizer symbols");
4206 }
4207
4208 sys_write = fwrite ((PTR_T) orig_opt_syms,
4209 1,
4210 num_write,
4211 object_stream);
4212
4213 if (sys_write <= 0)
4214 pfatal_with_name (object_name);
4215
4216 else if (sys_write != num_write)
4217 fatal ("Wrote %ld bytes to %s, system returned %ld",
4218 num_write,
4219 object_name,
4220 sys_write);
4221
4222 file_offset = symbolic_header.cbOptOffset + num_write;
4223 }
4224
4225 if (symbolic_header.idnMax > 0) /* dense numbers */
4226 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4227
4228 if (symbolic_header.ipdMax > 0) /* procedure tables */
4229 {
4230 offset = symbolic_header.cbPdOffset;
4231 for (file_ptr = first_file;
4232 file_ptr != (efdr_t *) 0;
4233 file_ptr = file_ptr->next_file)
4234 {
4235 write_varray (&file_ptr->procs, offset, "Procedure tables");
4236 offset = file_offset;
4237 }
4238 }
4239
4240 if (symbolic_header.isymMax > 0) /* local symbols */
4241 {
4242 offset = symbolic_header.cbSymOffset;
4243 for (file_ptr = first_file;
4244 file_ptr != (efdr_t *) 0;
4245 file_ptr = file_ptr->next_file)
4246 {
4247 write_varray (&file_ptr->symbols, offset, "Local symbols");
4248 offset = file_offset;
4249 }
4250 }
4251
4252 if (symbolic_header.iauxMax > 0) /* aux symbols */
4253 {
4254 offset = symbolic_header.cbAuxOffset;
4255 for (file_ptr = first_file;
4256 file_ptr != (efdr_t *) 0;
4257 file_ptr = file_ptr->next_file)
4258 {
4259 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4260 offset = file_offset;
4261 }
4262 }
4263
4264 if (symbolic_header.issMax > 0) /* local strings */
4265 {
4266 offset = symbolic_header.cbSsOffset;
4267 for (file_ptr = first_file;
4268 file_ptr != (efdr_t *) 0;
4269 file_ptr = file_ptr->next_file)
4270 {
4271 write_varray (&file_ptr->strings, offset, "Local strings");
4272 offset = file_offset;
4273 }
4274 }
4275
4276 if (symbolic_header.issExtMax > 0) /* external strings */
4277 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4278
4279 if (symbolic_header.ifdMax > 0) /* file tables */
4280 {
4281 offset = symbolic_header.cbFdOffset;
4282 if (file_offset != offset
4283 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4284 pfatal_with_name (object_name);
4285
4286 file_offset = offset;
4287 for (file_ptr = first_file;
4288 file_ptr != (efdr_t *) 0;
4289 file_ptr = file_ptr->next_file)
4290 {
4291 if (debug)
4292 {
4293 fputs ("\twrite\tvp = ", stderr);
4294 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4295 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4296 file_offset, (unsigned long) sizeof (FDR),
4297 "File header");
4298 }
4299
4300 sys_write = fwrite (&file_ptr->fdr,
4301 1,
4302 sizeof (FDR),
4303 object_stream);
4304
4305 if (sys_write < 0)
4306 pfatal_with_name (object_name);
4307
4308 else if (sys_write != sizeof (FDR))
4309 fatal ("Wrote %d bytes to %s, system returned %d",
4310 (int) sizeof (FDR),
4311 object_name,
4312 sys_write);
4313
4314 file_offset = offset += sizeof (FDR);
4315 }
4316 }
4317
4318 if (symbolic_header.crfd > 0) /* relative file descriptors */
4319 {
4320 long sys_write;
4321 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4322
4323 if (file_offset != symbolic_header.cbRfdOffset
4324 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4325 pfatal_with_name (object_name);
4326
4327 if (debug)
4328 {
4329 fputs ("\twrite\tvp = ", stderr);
4330 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4331 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4332 (long) symbolic_header.cbRfdOffset,
4333 num_write, "Relative file descriptors");
4334 }
4335
4336 sys_write = fwrite (orig_rfds,
4337 1,
4338 num_write,
4339 object_stream);
4340
4341 if (sys_write <= 0)
4342 pfatal_with_name (object_name);
4343
4344 else if (sys_write != (long)num_write)
4345 fatal ("Wrote %lu bytes to %s, system returned %ld",
4346 num_write,
4347 object_name,
4348 sys_write);
4349
4350 file_offset = symbolic_header.cbRfdOffset + num_write;
4351 }
4352
4353 if (symbolic_header.issExtMax > 0) /* external symbols */
4354 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4355
4356 if (fclose (object_stream) != 0)
4357 pfatal_with_name (object_name);
4358 }
4359
4360 \f
4361 /* Read some bytes at a specified location, and return a pointer. */
4362
4363 STATIC page_t *
4364 read_seek (size, offset, str)
4365 Size_t size; /* # bytes to read */
4366 off_t offset; /* offset to read at */
4367 const char *str; /* name for tracing */
4368 {
4369 page_t *ptr;
4370 long sys_read = 0;
4371
4372 if (size == 0) /* nothing to read */
4373 return (page_t *) 0;
4374
4375 if (debug)
4376 fprintf (stderr,
4377 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4378 (unsigned long) size, (unsigned long) offset, file_offset, str);
4379
4380 #ifndef MALLOC_CHECK
4381 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4382 #else
4383 ptr = (page_t *) xcalloc (1, size);
4384 #endif
4385
4386 /* If we need to seek, and the distance is nearby, just do some reads,
4387 to speed things up. */
4388 if (file_offset != offset)
4389 {
4390 symint_t difference = offset - file_offset;
4391
4392 if (difference < 8)
4393 {
4394 char small_buffer[8];
4395
4396 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4397 if (sys_read <= 0)
4398 pfatal_with_name (obj_in_name);
4399
4400 if ((symint_t)sys_read != difference)
4401 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4402 (unsigned long) size,
4403 obj_in_name,
4404 sys_read);
4405 }
4406 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4407 pfatal_with_name (obj_in_name);
4408 }
4409
4410 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4411 if (sys_read <= 0)
4412 pfatal_with_name (obj_in_name);
4413
4414 if (sys_read != (long) size)
4415 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4416 (unsigned long) size,
4417 obj_in_name,
4418 sys_read);
4419
4420 file_offset = offset + size;
4421
4422 if (file_offset > max_file_offset)
4423 max_file_offset = file_offset;
4424
4425 return ptr;
4426 }
4427
4428 \f
4429 /* Read the existing object file (and copy to the output object file
4430 if it is different from the input object file), and remove the old
4431 symbol table. */
4432
4433 STATIC void
4434 copy_object __proto((void))
4435 {
4436 char buffer[ PAGE_SIZE ];
4437 register int sys_read;
4438 register int remaining;
4439 register int num_write;
4440 register int sys_write;
4441 register int fd, es;
4442 register int delete_ifd = 0;
4443 register int *remap_file_number;
4444 struct stat stat_buf;
4445
4446 if (debug)
4447 fprintf (stderr, "\tcopy\n");
4448
4449 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4450 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4451 pfatal_with_name (obj_in_name);
4452
4453 sys_read = fread ((PTR_T) &orig_file_header,
4454 1,
4455 sizeof (struct filehdr),
4456 obj_in_stream);
4457
4458 if (sys_read < 0)
4459 pfatal_with_name (obj_in_name);
4460
4461 else if (sys_read == 0 && feof (obj_in_stream))
4462 return; /* create a .T file sans file header */
4463
4464 else if (sys_read < (int) sizeof (struct filehdr))
4465 fatal ("Wanted to read %d bytes from %s, system returned %d",
4466 (int) sizeof (struct filehdr),
4467 obj_in_name,
4468 sys_read);
4469
4470
4471 if (orig_file_header.f_nsyms != sizeof (HDRR))
4472 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4473 input_name, orig_file_header.f_nsyms, (int) sizeof (HDRR));
4474
4475
4476 /* Read in the current symbolic header. */
4477 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4478 pfatal_with_name (input_name);
4479
4480 sys_read = fread ((PTR_T) &orig_sym_hdr,
4481 1,
4482 sizeof (orig_sym_hdr),
4483 obj_in_stream);
4484
4485 if (sys_read < 0)
4486 pfatal_with_name (object_name);
4487
4488 else if (sys_read < (int) sizeof (struct filehdr))
4489 fatal ("Wanted to read %d bytes from %s, system returned %d",
4490 (int) sizeof (struct filehdr),
4491 obj_in_name,
4492 sys_read);
4493
4494
4495 /* Read in each of the sections if they exist in the object file.
4496 We read things in in the order the mips assembler creates the
4497 sections, so in theory no extra seeks are done.
4498
4499 For simplicity sake, round each read up to a page boundary,
4500 we may want to revisit this later.... */
4501
4502 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4503
4504 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4505 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4506 orig_sym_hdr.cbLineOffset,
4507 "Line numbers");
4508
4509 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4510 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4511 orig_sym_hdr.cbPdOffset,
4512 "Procedure tables");
4513
4514 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4515 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4516 orig_sym_hdr.cbSymOffset,
4517 "Local symbols");
4518
4519 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4520 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4521 orig_sym_hdr.cbAuxOffset,
4522 "Aux. symbols");
4523
4524 if (orig_sym_hdr.issMax > 0) /* local strings */
4525 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4526 orig_sym_hdr.cbSsOffset,
4527 "Local strings");
4528
4529 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4530 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4531 orig_sym_hdr.cbSsExtOffset,
4532 "External strings");
4533
4534 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4535 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4536 orig_sym_hdr.cbFdOffset,
4537 "File tables");
4538
4539 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4540 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4541 orig_sym_hdr.cbRfdOffset,
4542 "Relative file descriptors");
4543
4544 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4545 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4546 orig_sym_hdr.cbExtOffset,
4547 "External symbols");
4548
4549 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4550 {
4551 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4552 orig_sym_hdr.cbDnOffset,
4553 "Dense numbers");
4554
4555 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4556 }
4557
4558 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4559 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4560 orig_sym_hdr.cbOptOffset,
4561 "Optimizer symbols");
4562
4563
4564
4565 /* Abort if the symbol table is not last. */
4566 if (max_file_offset != stat_buf.st_size)
4567 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4568 max_file_offset,
4569 stat_buf.st_size);
4570
4571
4572 /* If the first original file descriptor is a dummy which the assembler
4573 put out, but there are no symbols in it, skip it now. */
4574 if (orig_sym_hdr.ifdMax > 1
4575 && orig_files->csym == 2
4576 && orig_files->caux == 0)
4577 {
4578 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4579 char *suffix = local_rindex (filename, '.');
4580
4581 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4582 delete_ifd = 1;
4583 }
4584
4585
4586 /* Create array to map original file numbers to the new file numbers
4587 (in case there are duplicate filenames, we collapse them into one
4588 file section, the MIPS assembler may or may not collapse them). */
4589
4590 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4591
4592 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4593 {
4594 register FDR *fd_ptr = ORIG_FILES (fd);
4595 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4596
4597 /* file support itself. */
4598 add_file (filename, filename + strlen (filename));
4599 remap_file_number[fd] = cur_file_ptr->file_index;
4600 }
4601
4602 if (delete_ifd > 0) /* just in case */
4603 remap_file_number[0] = remap_file_number[1];
4604
4605
4606 /* Loop, adding each of the external symbols. These must be in
4607 order or otherwise we would have to change the relocation
4608 entries. We don't just call add_bytes, because we need to have
4609 the names put into the external hash table. We set the type to
4610 'void' for now, and parse_def will fill in the correct type if it
4611 is in the symbol table. We must add the external symbols before
4612 the locals, since the locals do lookups against the externals. */
4613
4614 if (debug)
4615 fprintf (stderr, "\tehash\n");
4616
4617 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4618 {
4619 register EXTR *eptr = orig_ext_syms + es;
4620 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4621 register unsigned ifd = eptr->ifd;
4622
4623 (void) add_ext_symbol (ename,
4624 ename + strlen (ename),
4625 (st_t) eptr->asym.st,
4626 (sc_t) eptr->asym.sc,
4627 eptr->asym.value,
4628 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4629 ((long) ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4630 }
4631
4632
4633 /* For each of the files in the object file, copy the symbols, and such
4634 into the varrays for the new object file. */
4635
4636 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4637 {
4638 register FDR *fd_ptr = ORIG_FILES (fd);
4639 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4640 register SYMR *sym_start;
4641 register SYMR *sym;
4642 register SYMR *sym_end_p1;
4643 register PDR *proc_start;
4644 register PDR *proc;
4645 register PDR *proc_end_p1;
4646
4647 /* file support itself. */
4648 add_file (filename, filename + strlen (filename));
4649 cur_file_ptr->orig_fdr = fd_ptr;
4650
4651 /* Copy stuff that's just passed through (such as line #'s) */
4652 cur_file_ptr->fdr.adr = fd_ptr->adr;
4653 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4654 cur_file_ptr->fdr.cline = fd_ptr->cline;
4655 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4656 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4657 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4658 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4659 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4660 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4661 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4662
4663 if (debug)
4664 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4665
4666 /* For each of the static and global symbols defined, add them
4667 to the hash table of original symbols, so we can look up
4668 their values. */
4669
4670 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4671 sym_end_p1 = sym_start + fd_ptr->csym;
4672 for (sym = sym_start; sym < sym_end_p1; sym++)
4673 {
4674 switch ((st_t) sym->st)
4675 {
4676 default:
4677 break;
4678
4679 case st_Global:
4680 case st_Static:
4681 case st_Label:
4682 case st_Proc:
4683 case st_StaticProc:
4684 {
4685 auto symint_t hash_index;
4686 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4687 register Size_t len = strlen (str);
4688 register shash_t *shash_ptr = hash_string (str,
4689 (Ptrdiff_t)len,
4690 &orig_str_hash[0],
4691 &hash_index);
4692
4693 if (shash_ptr != (shash_t *) 0)
4694 error ("internal error, %s is already in original symbol table", str);
4695
4696 else
4697 {
4698 shash_ptr = allocate_shash ();
4699 shash_ptr->next = orig_str_hash[hash_index];
4700 orig_str_hash[hash_index] = shash_ptr;
4701
4702 shash_ptr->len = len;
4703 shash_ptr->indx = indexNil;
4704 shash_ptr->string = str;
4705 shash_ptr->sym_ptr = sym;
4706 }
4707 }
4708 break;
4709
4710 case st_End:
4711 if ((sc_t) sym->sc == sc_Text)
4712 {
4713 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4714
4715 if (*str != '\0')
4716 {
4717 register Size_t len = strlen (str);
4718 register shash_t *shash_ptr = hash_string (str,
4719 (Ptrdiff_t)len,
4720 &orig_str_hash[0],
4721 (symint_t *) 0);
4722
4723 if (shash_ptr != (shash_t *) 0)
4724 shash_ptr->end_ptr = sym;
4725 }
4726 }
4727 break;
4728
4729 }
4730 }
4731
4732 if (debug)
4733 {
4734 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4735 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4736 }
4737
4738 /* Go through each of the procedures in this file, and add the
4739 procedure pointer to the hash entry for the given name. */
4740
4741 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4742 proc_end_p1 = proc_start + fd_ptr->cpd;
4743 for (proc = proc_start; proc < proc_end_p1; proc++)
4744 {
4745 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4746 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4747 register Size_t len = strlen (str);
4748 register shash_t *shash_ptr = hash_string (str,
4749 (Ptrdiff_t)len,
4750 &orig_str_hash[0],
4751 (symint_t *) 0);
4752
4753 if (shash_ptr == (shash_t *) 0)
4754 error ("internal error, function %s is not in original symbol table", str);
4755
4756 else
4757 shash_ptr->proc_ptr = proc;
4758 }
4759
4760 if (debug)
4761 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4762
4763 }
4764 cur_file_ptr = first_file;
4765
4766
4767 /* Copy all of the object file up to the symbol table. Originally
4768 we were going to use ftruncate, but that doesn't seem to work
4769 on Ultrix 3.1.... */
4770
4771 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4772 pfatal_with_name (obj_in_name);
4773
4774 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4775 pfatal_with_name (object_name);
4776
4777 for (remaining = orig_file_header.f_symptr;
4778 remaining > 0;
4779 remaining -= num_write)
4780 {
4781 num_write =
4782 (remaining <= (int) sizeof (buffer)) ? remaining : sizeof (buffer);
4783 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4784 if (sys_read <= 0)
4785 pfatal_with_name (obj_in_name);
4786
4787 else if (sys_read != num_write)
4788 fatal ("Wanted to read %d bytes from %s, system returned %d",
4789 num_write,
4790 obj_in_name,
4791 sys_read);
4792
4793 sys_write = fwrite (buffer, 1, num_write, object_stream);
4794 if (sys_write <= 0)
4795 pfatal_with_name (object_name);
4796
4797 else if (sys_write != num_write)
4798 fatal ("Wrote %d bytes to %s, system returned %d",
4799 num_write,
4800 object_name,
4801 sys_write);
4802 }
4803 }
4804
4805 \f
4806 /* Ye olde main program. */
4807
4808 int
4809 main (argc, argv)
4810 int argc;
4811 char *argv[];
4812 {
4813 int iflag = 0;
4814 char *p = local_rindex (argv[0], '/');
4815 char *num_end;
4816 int option;
4817 int i;
4818
4819 progname = (p != 0) ? p+1 : argv[0];
4820
4821 (void) signal (SIGSEGV, catch_signal);
4822 (void) signal (SIGBUS, catch_signal);
4823 (void) signal (SIGABRT, catch_signal);
4824
4825 #if !defined(__SABER__) && !defined(lint)
4826 if (sizeof (efdr_t) > PAGE_USIZE)
4827 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4828 (int) sizeof (efdr_t),
4829 (int) PAGE_USIZE);
4830
4831 if (sizeof (page_t) != PAGE_USIZE)
4832 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4833 (int) sizeof (page_t),
4834 (int) PAGE_USIZE);
4835
4836 #endif
4837
4838 alloc_counts[ alloc_type_none ].alloc_name = "none";
4839 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4840 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4841 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4842 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4843 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4844 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4845 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4846 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4847
4848 int_type_info = type_info_init;
4849 int_type_info.basic_type = bt_Int;
4850
4851 void_type_info = type_info_init;
4852 void_type_info.basic_type = bt_Void;
4853
4854 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4855 switch (option)
4856 {
4857 default:
4858 had_errors++;
4859 break;
4860
4861 case 'd':
4862 debug = strtol (optarg, &num_end, 0);
4863 if ((unsigned)debug > 4 || num_end == optarg)
4864 had_errors++;
4865
4866 break;
4867
4868 case 'I':
4869 if (rename_output || obj_in_name != (char *) 0)
4870 had_errors++;
4871 else
4872 rename_output = 1;
4873
4874 /* fall through to 'i' case. */
4875
4876 case 'i':
4877 if (obj_in_name == (char *) 0)
4878 {
4879 obj_in_name = optarg;
4880 iflag++;
4881 }
4882 else
4883 had_errors++;
4884 break;
4885
4886 case 'o':
4887 if (object_name == (char *) 0)
4888 object_name = optarg;
4889 else
4890 had_errors++;
4891 break;
4892
4893 case 'v':
4894 version++;
4895 break;
4896 }
4897
4898 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4899 obj_in_name = argv[--argc];
4900
4901 if (object_name == (char *) 0 && optind <= argc - 2)
4902 object_name = argv[--argc];
4903
4904 /* If there is an output name, but no input name use
4905 the same file for both, deleting the name between
4906 opening it for input and opening it for output. */
4907 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4908 {
4909 obj_in_name = object_name;
4910 delete_input = 1;
4911 }
4912
4913 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4914 {
4915 fprintf (stderr, "Calling Sequence:\n");
4916 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4917 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4918 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4919 fprintf (stderr, "\n");
4920 fprintf (stderr, "Debug levels are:\n");
4921 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4922 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4923 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4924 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4925 return 1;
4926 }
4927
4928
4929 if (version)
4930 {
4931 fprintf (stderr, "mips-tfile version %s", version_string);
4932 #ifdef TARGET_VERSION
4933 TARGET_VERSION;
4934 #endif
4935 fputc ('\n', stderr);
4936 }
4937
4938 if (obj_in_name == (char *) 0)
4939 obj_in_name = object_name;
4940
4941 if (rename_output && rename (object_name, obj_in_name) != 0)
4942 {
4943 char *buffer = (char *) allocate_multiple_pages (4);
4944 int len;
4945 int len2;
4946 int in_fd;
4947 int out_fd;
4948
4949 /* Rename failed, copy input file */
4950 in_fd = open (object_name, O_RDONLY, 0666);
4951 if (in_fd < 0)
4952 pfatal_with_name (object_name);
4953
4954 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4955 if (out_fd < 0)
4956 pfatal_with_name (obj_in_name);
4957
4958 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4959 {
4960 len2 = write (out_fd, buffer, len);
4961 if (len2 < 0)
4962 pfatal_with_name (object_name);
4963
4964 if (len != len2)
4965 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4966 }
4967
4968 free_multiple_pages ((page_t *)buffer, 4);
4969
4970 if (len < 0)
4971 pfatal_with_name (object_name);
4972
4973 if (close (in_fd) < 0)
4974 pfatal_with_name (object_name);
4975
4976 if (close (out_fd) < 0)
4977 pfatal_with_name (obj_in_name);
4978 }
4979
4980 /* Must open input before output, since the output may be the same file, and
4981 we need to get the input handle before truncating it. */
4982 obj_in_stream = fopen (obj_in_name, "r");
4983 if (obj_in_stream == (FILE *) 0)
4984 pfatal_with_name (obj_in_name);
4985
4986 if (delete_input && unlink (obj_in_name) != 0)
4987 pfatal_with_name (obj_in_name);
4988
4989 object_stream = fopen (object_name, "w");
4990 if (object_stream == (FILE *) 0)
4991 pfatal_with_name (object_name);
4992
4993 if (strcmp (argv[optind], "-") != 0)
4994 {
4995 input_name = argv[optind];
4996 if (freopen (argv[optind], "r", stdin) != stdin)
4997 pfatal_with_name (argv[optind]);
4998 }
4999
5000 copy_object (); /* scan & copy object file */
5001 parse_input (); /* scan all of input */
5002
5003 update_headers (); /* write out tfile */
5004 write_object ();
5005
5006 if (debug)
5007 {
5008 fprintf (stderr, "\n\tAllocation summary:\n\n");
5009 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5010 if (alloc_counts[i].total_alloc)
5011 {
5012 fprintf (stderr,
5013 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5014 alloc_counts[i].alloc_name,
5015 alloc_counts[i].total_alloc,
5016 alloc_counts[i].total_free,
5017 alloc_counts[i].total_pages);
5018 }
5019 }
5020
5021 return (had_errors) ? 1 : 0;
5022 }
5023
5024 \f
5025 STATIC const char *
5026 my_strsignal (s)
5027 int s;
5028 {
5029 #ifdef HAVE_STRSIGNAL
5030 return strsignal (s);
5031 #else
5032 if (s >= 0 && s < NSIG)
5033 {
5034 # ifdef NO_SYS_SIGLIST
5035 static char buffer[30];
5036
5037 sprintf (buffer, "Unknown signal %d", s);
5038 return buffer;
5039 # else
5040 return sys_siglist[s];
5041 # endif
5042 }
5043 else
5044 return NULL;
5045 #endif /* HAVE_STRSIGNAL */
5046 }
5047
5048 /* Catch a signal and exit without dumping core. */
5049
5050 STATIC void
5051 catch_signal (signum)
5052 int signum;
5053 {
5054 (void) signal (signum, SIG_DFL); /* just in case... */
5055 fatal (my_strsignal(signum));
5056 }
5057
5058 /* Print a fatal error message. NAME is the text.
5059 Also include a system error message based on `errno'. */
5060
5061 void
5062 pfatal_with_name (msg)
5063 const char *msg;
5064 {
5065 int save_errno = errno; /* just in case.... */
5066 if (line_number > 0)
5067 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5068 else
5069 fprintf (stderr, "%s:", progname);
5070
5071 errno = save_errno;
5072 if (errno == 0)
5073 fprintf (stderr, "[errno = 0] %s\n", msg);
5074 else
5075 perror (msg);
5076
5077 exit (1);
5078 }
5079
5080 \f
5081 /* Procedure to abort with an out of bounds error message. It has
5082 type int, so it can be used with an ?: expression within the
5083 ORIG_xxx macros, but the function never returns. */
5084
5085 static int
5086 out_of_bounds (indx, max, str, prog_line)
5087 symint_t indx; /* index that is out of bounds */
5088 symint_t max; /* maximum index */
5089 const char *str; /* string to print out */
5090 int prog_line; /* line number within mips-tfile.c */
5091 {
5092 if (indx < max) /* just in case */
5093 return 0;
5094
5095 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5096 progname, input_name, line_number, indx, str, max, prog_line);
5097
5098 exit (1);
5099 return 0; /* turn off warning messages */
5100 }
5101
5102 \f
5103 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5104 like sbrk's behind its back (or sbrk isn't available). If we use
5105 sbrk, we assume it gives us zeroed pages. */
5106
5107 #ifndef MALLOC_CHECK
5108 #ifdef USE_MALLOC
5109
5110 STATIC page_t *
5111 allocate_cluster (npages)
5112 Size_t npages;
5113 {
5114 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5115
5116 if (value == 0)
5117 fatal ("Virtual memory exhausted.");
5118
5119 if (debug > 3)
5120 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5121
5122 return value;
5123 }
5124
5125 #else /* USE_MALLOC */
5126
5127 STATIC page_t *
5128 allocate_cluster (npages)
5129 Size_t npages;
5130 {
5131 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5132 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5133
5134 if (offset != 0) /* align to a page boundary */
5135 {
5136 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5137 pfatal_with_name ("allocate_cluster");
5138
5139 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5140 }
5141
5142 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5143 pfatal_with_name ("allocate_cluster");
5144
5145 if (debug > 3)
5146 {
5147 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5148 (unsigned long) npages);
5149 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5150 fputs ("\n", stderr);
5151 }
5152
5153 return ptr;
5154 }
5155
5156 #endif /* USE_MALLOC */
5157
5158
5159 static page_t *cluster_ptr = NULL;
5160 static unsigned pages_left = 0;
5161
5162 #endif /* MALLOC_CHECK */
5163
5164
5165 /* Allocate some pages (which is initialized to 0). */
5166
5167 STATIC page_t *
5168 allocate_multiple_pages (npages)
5169 Size_t npages;
5170 {
5171 #ifndef MALLOC_CHECK
5172 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5173 {
5174 pages_left = MAX_CLUSTER_PAGES;
5175 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5176 }
5177
5178 if (npages <= pages_left)
5179 {
5180 page_t *ptr = cluster_ptr;
5181 cluster_ptr += npages;
5182 pages_left -= npages;
5183 return ptr;
5184 }
5185
5186 return allocate_cluster (npages);
5187
5188 #else /* MALLOC_CHECK */
5189 return (page_t *) xcalloc (npages, PAGE_SIZE);
5190
5191 #endif /* MALLOC_CHECK */
5192 }
5193
5194
5195 /* Release some pages. */
5196
5197 STATIC void
5198 free_multiple_pages (page_ptr, npages)
5199 page_t *page_ptr;
5200 Size_t npages;
5201 {
5202 #ifndef MALLOC_CHECK
5203 if (pages_left == 0)
5204 {
5205 cluster_ptr = page_ptr;
5206 pages_left = npages;
5207 }
5208
5209 else if ((page_ptr + npages) == cluster_ptr)
5210 {
5211 cluster_ptr -= npages;
5212 pages_left += npages;
5213 }
5214
5215 /* otherwise the page is not freed. If more than call is
5216 done, we probably should worry about it, but at present,
5217 the free pages is done right after an allocate. */
5218
5219 #else /* MALLOC_CHECK */
5220 free ((char *) page_ptr);
5221
5222 #endif /* MALLOC_CHECK */
5223 }
5224
5225
5226 /* Allocate one page (which is initialized to 0). */
5227
5228 STATIC page_t *
5229 allocate_page __proto((void))
5230 {
5231 #ifndef MALLOC_CHECK
5232 if (pages_left == 0)
5233 {
5234 pages_left = MAX_CLUSTER_PAGES;
5235 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5236 }
5237
5238 pages_left--;
5239 return cluster_ptr++;
5240
5241 #else /* MALLOC_CHECK */
5242 return (page_t *) xcalloc (1, PAGE_SIZE);
5243
5244 #endif /* MALLOC_CHECK */
5245 }
5246
5247 \f
5248 /* Allocate scoping information. */
5249
5250 STATIC scope_t *
5251 allocate_scope __proto((void))
5252 {
5253 register scope_t *ptr;
5254 static scope_t initial_scope;
5255
5256 #ifndef MALLOC_CHECK
5257 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5258 if (ptr != (scope_t *) 0)
5259 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5260
5261 else
5262 {
5263 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5264 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5265
5266 if (unallocated == 0)
5267 {
5268 unallocated = PAGE_SIZE / sizeof (scope_t);
5269 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5270 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5271 }
5272
5273 ptr = &cur_page->scope[ --unallocated ];
5274 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5275 }
5276
5277 #else
5278 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5279
5280 #endif
5281
5282 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5283 *ptr = initial_scope;
5284 return ptr;
5285 }
5286
5287 /* Free scoping information. */
5288
5289 STATIC void
5290 free_scope (ptr)
5291 scope_t *ptr;
5292 {
5293 alloc_counts[ (int)alloc_type_scope ].total_free++;
5294
5295 #ifndef MALLOC_CHECK
5296 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5297 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5298
5299 #else
5300 xfree ((PTR_T) ptr);
5301 #endif
5302
5303 }
5304
5305 \f
5306 /* Allocate links for pages in a virtual array. */
5307
5308 STATIC vlinks_t *
5309 allocate_vlinks __proto((void))
5310 {
5311 register vlinks_t *ptr;
5312 static vlinks_t initial_vlinks;
5313
5314 #ifndef MALLOC_CHECK
5315 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5316 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5317
5318 if (unallocated == 0)
5319 {
5320 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5321 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5322 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5323 }
5324
5325 ptr = &cur_page->vlinks[ --unallocated ];
5326 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5327
5328 #else
5329 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5330
5331 #endif
5332
5333 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5334 *ptr = initial_vlinks;
5335 return ptr;
5336 }
5337
5338 \f
5339 /* Allocate string hash buckets. */
5340
5341 STATIC shash_t *
5342 allocate_shash __proto((void))
5343 {
5344 register shash_t *ptr;
5345 static shash_t initial_shash;
5346
5347 #ifndef MALLOC_CHECK
5348 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5349 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5350
5351 if (unallocated == 0)
5352 {
5353 unallocated = PAGE_SIZE / sizeof (shash_t);
5354 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5355 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5356 }
5357
5358 ptr = &cur_page->shash[ --unallocated ];
5359 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5360
5361 #else
5362 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5363
5364 #endif
5365
5366 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5367 *ptr = initial_shash;
5368 return ptr;
5369 }
5370
5371 \f
5372 /* Allocate type hash buckets. */
5373
5374 STATIC thash_t *
5375 allocate_thash __proto((void))
5376 {
5377 register thash_t *ptr;
5378 static thash_t initial_thash;
5379
5380 #ifndef MALLOC_CHECK
5381 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5382 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5383
5384 if (unallocated == 0)
5385 {
5386 unallocated = PAGE_SIZE / sizeof (thash_t);
5387 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5388 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5389 }
5390
5391 ptr = &cur_page->thash[ --unallocated ];
5392 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5393
5394 #else
5395 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5396
5397 #endif
5398
5399 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5400 *ptr = initial_thash;
5401 return ptr;
5402 }
5403
5404 \f
5405 /* Allocate structure, union, or enum tag information. */
5406
5407 STATIC tag_t *
5408 allocate_tag __proto((void))
5409 {
5410 register tag_t *ptr;
5411 static tag_t initial_tag;
5412
5413 #ifndef MALLOC_CHECK
5414 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5415 if (ptr != (tag_t *) 0)
5416 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5417
5418 else
5419 {
5420 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5421 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5422
5423 if (unallocated == 0)
5424 {
5425 unallocated = PAGE_SIZE / sizeof (tag_t);
5426 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5427 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5428 }
5429
5430 ptr = &cur_page->tag[ --unallocated ];
5431 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5432 }
5433
5434 #else
5435 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5436
5437 #endif
5438
5439 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5440 *ptr = initial_tag;
5441 return ptr;
5442 }
5443
5444 /* Free scoping information. */
5445
5446 STATIC void
5447 free_tag (ptr)
5448 tag_t *ptr;
5449 {
5450 alloc_counts[ (int)alloc_type_tag ].total_free++;
5451
5452 #ifndef MALLOC_CHECK
5453 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5454 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5455
5456 #else
5457 xfree ((PTR_T) ptr);
5458 #endif
5459
5460 }
5461
5462 \f
5463 /* Allocate forward reference to a yet unknown tag. */
5464
5465 STATIC forward_t *
5466 allocate_forward __proto((void))
5467 {
5468 register forward_t *ptr;
5469 static forward_t initial_forward;
5470
5471 #ifndef MALLOC_CHECK
5472 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5473 if (ptr != (forward_t *) 0)
5474 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5475
5476 else
5477 {
5478 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5479 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5480
5481 if (unallocated == 0)
5482 {
5483 unallocated = PAGE_SIZE / sizeof (forward_t);
5484 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5485 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5486 }
5487
5488 ptr = &cur_page->forward[ --unallocated ];
5489 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5490 }
5491
5492 #else
5493 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5494
5495 #endif
5496
5497 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5498 *ptr = initial_forward;
5499 return ptr;
5500 }
5501
5502 /* Free scoping information. */
5503
5504 STATIC void
5505 free_forward (ptr)
5506 forward_t *ptr;
5507 {
5508 alloc_counts[ (int)alloc_type_forward ].total_free++;
5509
5510 #ifndef MALLOC_CHECK
5511 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5512 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5513
5514 #else
5515 xfree ((PTR_T) ptr);
5516 #endif
5517
5518 }
5519
5520 \f
5521 /* Allocate head of type hash list. */
5522
5523 STATIC thead_t *
5524 allocate_thead __proto((void))
5525 {
5526 register thead_t *ptr;
5527 static thead_t initial_thead;
5528
5529 #ifndef MALLOC_CHECK
5530 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5531 if (ptr != (thead_t *) 0)
5532 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5533
5534 else
5535 {
5536 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5537 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5538
5539 if (unallocated == 0)
5540 {
5541 unallocated = PAGE_SIZE / sizeof (thead_t);
5542 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5543 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5544 }
5545
5546 ptr = &cur_page->thead[ --unallocated ];
5547 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5548 }
5549
5550 #else
5551 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5552
5553 #endif
5554
5555 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5556 *ptr = initial_thead;
5557 return ptr;
5558 }
5559
5560 /* Free scoping information. */
5561
5562 STATIC void
5563 free_thead (ptr)
5564 thead_t *ptr;
5565 {
5566 alloc_counts[ (int)alloc_type_thead ].total_free++;
5567
5568 #ifndef MALLOC_CHECK
5569 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5570 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5571
5572 #else
5573 xfree ((PTR_T) ptr);
5574 #endif
5575
5576 }
5577
5578 #endif /* MIPS_DEBUGGING_INFO */
5579
5580 \f
5581 /* Output an error message and exit */
5582
5583 /*VARARGS*/
5584 void
5585 fatal VPROTO((const char *format, ...))
5586 {
5587 #ifndef ANSI_PROTOTYPES
5588 const char *format;
5589 #endif
5590 va_list ap;
5591
5592 VA_START (ap, format);
5593
5594 #ifndef ANSI_PROTOTYPES
5595 format = va_arg (ap, const char *);
5596 #endif
5597
5598 if (line_number > 0)
5599 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5600 else
5601 fprintf (stderr, "%s:", progname);
5602
5603 vfprintf (stderr, format, ap);
5604 va_end (ap);
5605 fprintf (stderr, "\n");
5606 if (line_number > 0)
5607 fprintf (stderr, "line:\t%s\n", cur_line_start);
5608
5609 saber_stop ();
5610 exit (1);
5611 }
5612
5613 /*VARARGS*/
5614 void
5615 error VPROTO((const char *format, ...))
5616 {
5617 #ifndef ANSI_PROTOTYPES
5618 char *format;
5619 #endif
5620 va_list ap;
5621
5622 VA_START (ap, format);
5623
5624 #ifndef ANSI_PROTOTYPES
5625 format = va_arg (ap, char *);
5626 #endif
5627
5628 if (line_number > 0)
5629 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5630 else
5631 fprintf (stderr, "%s:", progname);
5632
5633 vfprintf (stderr, format, ap);
5634 fprintf (stderr, "\n");
5635 if (line_number > 0)
5636 fprintf (stderr, "line:\t%s\n", cur_line_start);
5637
5638 had_errors++;
5639 va_end (ap);
5640
5641 saber_stop ();
5642 }
5643
5644 /* More 'friendly' abort that prints the line and file.
5645 config.h can #define abort fancy_abort if you like that sort of thing. */
5646
5647 void
5648 fancy_abort ()
5649 {
5650 fatal ("Internal abort.");
5651 }
5652 \f
5653
5654 /* When `malloc.c' is compiled with `rcheck' defined,
5655 it calls this function to report clobberage. */
5656
5657 void
5658 botch (s)
5659 const char *s;
5660 {
5661 fatal (s);
5662 }
5663
5664 /* Same as `malloc' but report error if no memory available. */
5665
5666 PTR
5667 xmalloc (size)
5668 size_t size;
5669 {
5670 register PTR value = (PTR) malloc (size);
5671 if (value == 0)
5672 fatal ("Virtual memory exhausted.");
5673
5674 if (debug > 3)
5675 {
5676 fputs ("\tmalloc\tptr = ", stderr);
5677 fprintf (stderr, HOST_PTR_PRINTF, value);
5678 fprintf (stderr, ", size = %10lu\n", (unsigned long) size);
5679 }
5680
5681 return value;
5682 }
5683
5684 /* Same as `calloc' but report error if no memory available. */
5685
5686 PTR
5687 xcalloc (size1, size2)
5688 size_t size1, size2;
5689 {
5690 register PTR value = (PTR) calloc (size1, size2);
5691 if (value == 0)
5692 fatal ("Virtual memory exhausted.");
5693
5694 if (debug > 3)
5695 {
5696 fputs ("\tcalloc\tptr = ", stderr);
5697 fprintf (stderr, HOST_PTR_PRINTF, value);
5698 fprintf (stderr, ", size1 = %10lu, size2 = %10lu [%lu]\n",
5699 (unsigned long) size1, (unsigned long) size2,
5700 (unsigned long) size1*size2);
5701 }
5702
5703 return value;
5704 }
5705
5706 /* Same as `realloc' but report error if no memory available. */
5707
5708 PTR
5709 xrealloc (ptr, size)
5710 PTR ptr;
5711 size_t size;
5712 {
5713 register PTR result;
5714 if (ptr)
5715 result = (PTR) realloc (ptr, size);
5716 else
5717 result = (PTR) malloc (size);
5718 if (!result)
5719 fatal ("Virtual memory exhausted.");
5720
5721 if (debug > 3)
5722 {
5723 fputs ("\trealloc\tptr = ", stderr);
5724 fprintf (stderr, HOST_PTR_PRINTF, result);
5725 fprintf (stderr, ", size = %10lu, orig = ", size);
5726 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5727 fputs ("\n", stderr);
5728 }
5729
5730 return result;
5731 }
5732
5733 void
5734 xfree (ptr)
5735 PTR ptr;
5736 {
5737 if (debug > 3)
5738 {
5739 fputs ("\tfree\tptr = ", stderr);
5740 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5741 fputs ("\n", stderr);
5742 }
5743
5744 free (ptr);
5745 }
5746
5747 \f
5748 /* Define our own index/rindex, since the local and global symbol
5749 structures as defined by MIPS has an 'index' field. */
5750
5751 STATIC char *
5752 local_index (str, sentinel)
5753 const char *str;
5754 int sentinel;
5755 {
5756 int ch;
5757
5758 for ( ; (ch = *str) != sentinel; str++)
5759 {
5760 if (ch == '\0')
5761 return (char *) 0;
5762 }
5763
5764 return (char *)str;
5765 }
5766
5767 STATIC char *
5768 local_rindex (str, sentinel)
5769 const char *str;
5770 int sentinel;
5771 {
5772 int ch;
5773 const char *ret = (const char *) 0;
5774
5775 for ( ; (ch = *str) != '\0'; str++)
5776 {
5777 if (ch == sentinel)
5778 ret = str;
5779 }
5780
5781 return (char *)ret;
5782 }
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