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* Makefile.in (ggc-common.o): Depend on genrtl.h.
[official-gcc.git] / gcc / mips-tfile.c
blobcbe7349088c19edc5fd94a47d704653ef5083f79
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 93-95, 97, 98, 1999 Free Software Foundation, Inc.
6 Contributed by Michael Meissner (meissner@cygnus.com).
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #include "system.h"
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #define __proto(x) PARAMS(x)
614 typedef PTR PTR_T;
615 typedef const PTR_T CPTR_T;
616
617 /* Due to size_t being defined in sys/types.h and different
618 in stddef.h, we have to do this by hand..... Note, these
619 types are correct for MIPS based systems, and may not be
620 correct for other systems. Ultrix 4.0 and Silicon Graphics
621 have this fixed, but since the following is correct, and
622 the fact that including stddef.h gets you GCC's version
623 instead of the standard one it's not worth it to fix it. */
624
625 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
626 #define Size_t long unsigned int
627 #else
628 #define Size_t unsigned int
629 #endif
630 #define Ptrdiff_t long
631
632 /* The following might be called from obstack or malloc,
633 so they can't be static. */
634
635 extern void pfatal_with_name
636 __proto((const char *));
637 extern void fancy_abort __proto((void));
638 void botch __proto((const char *));
639
640 extern void fatal PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
641 extern void error PVPROTO((const char *format, ...)) ATTRIBUTE_PRINTF_1;
642 \f
643 #ifndef MIPS_DEBUGGING_INFO
644
645 static int line_number;
646 static int cur_line_start;
647 static int debug;
648 static int had_errors;
649 static const char *progname;
650 static const char *input_name;
651
652 int
653 main ()
654 {
655 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
656 exit (1);
657 }
658
659 #else /* MIPS_DEBUGGING defined */
660 \f
661 /* The local and global symbols have a field index, so undo any defines
662 of index -> strchr and rindex -> strrchr. */
663
664 #undef rindex
665 #undef index
666
667 #include <signal.h>
668
669 #ifndef CROSS_COMPILE
670 #include <a.out.h>
671 #else
672 #include "mips/a.out.h"
673 #endif /* CROSS_COMPILE */
674
675 #if defined (USG) || !defined (HAVE_STAB_H)
676 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
677 #else
678 #include <stab.h> /* On BSD, use the system's stab.h. */
679 #endif /* not USG */
680
681 #ifdef __GNU_STAB__
682 #define STAB_CODE_TYPE enum __stab_debug_code
683 #else
684 #define STAB_CODE_TYPE int
685 #endif
686
687 #ifndef MALLOC_CHECK
688 #ifdef __SABER__
689 #define MALLOC_CHECK
690 #endif
691 #endif
692
693 #define IS_ASM_IDENT(ch) \
694 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
695
696 \f
697 /* Redefinition of storage classes as an enumeration for better
698 debugging. */
699
700 typedef enum sc {
701 sc_Nil = scNil, /* no storage class */
702 sc_Text = scText, /* text symbol */
703 sc_Data = scData, /* initialized data symbol */
704 sc_Bss = scBss, /* un-initialized data symbol */
705 sc_Register = scRegister, /* value of symbol is register number */
706 sc_Abs = scAbs, /* value of symbol is absolute */
707 sc_Undefined = scUndefined, /* who knows? */
708 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
709 sc_Bits = scBits, /* this is a bit field */
710 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
711 sc_RegImage = scRegImage, /* register value saved on stack */
712 sc_Info = scInfo, /* symbol contains debugger information */
713 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
714 sc_SData = scSData, /* load time only small data */
715 sc_SBss = scSBss, /* load time only small common */
716 sc_RData = scRData, /* load time only read only data */
717 sc_Var = scVar, /* Var parameter (fortran,pascal) */
718 sc_Common = scCommon, /* common variable */
719 sc_SCommon = scSCommon, /* small common */
720 sc_VarRegister = scVarRegister, /* Var parameter in a register */
721 sc_Variant = scVariant, /* Variant record */
722 sc_SUndefined = scSUndefined, /* small undefined(external) data */
723 sc_Init = scInit, /* .init section symbol */
724 sc_Max = scMax /* Max storage class+1 */
725 } sc_t;
726
727 /* Redefinition of symbol type. */
728
729 typedef enum st {
730 st_Nil = stNil, /* Nuthin' special */
731 st_Global = stGlobal, /* external symbol */
732 st_Static = stStatic, /* static */
733 st_Param = stParam, /* procedure argument */
734 st_Local = stLocal, /* local variable */
735 st_Label = stLabel, /* label */
736 st_Proc = stProc, /* " " Procedure */
737 st_Block = stBlock, /* beginning of block */
738 st_End = stEnd, /* end (of anything) */
739 st_Member = stMember, /* member (of anything - struct/union/enum */
740 st_Typedef = stTypedef, /* type definition */
741 st_File = stFile, /* file name */
742 st_RegReloc = stRegReloc, /* register relocation */
743 st_Forward = stForward, /* forwarding address */
744 st_StaticProc = stStaticProc, /* load time only static procs */
745 st_Constant = stConstant, /* const */
746 st_Str = stStr, /* string */
747 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
748 st_Expr = stExpr, /* 2+2 vs. 4 */
749 st_Type = stType, /* post-coercion SER */
750 st_Max = stMax /* max type+1 */
751 } st_t;
752
753 /* Redefinition of type qualifiers. */
754
755 typedef enum tq {
756 tq_Nil = tqNil, /* bt is what you see */
757 tq_Ptr = tqPtr, /* pointer */
758 tq_Proc = tqProc, /* procedure */
759 tq_Array = tqArray, /* duh */
760 tq_Far = tqFar, /* longer addressing - 8086/8 land */
761 tq_Vol = tqVol, /* volatile */
762 tq_Max = tqMax /* Max type qualifier+1 */
763 } tq_t;
764
765 /* Redefinition of basic types. */
766
767 typedef enum bt {
768 bt_Nil = btNil, /* undefined */
769 bt_Adr = btAdr, /* address - integer same size as pointer */
770 bt_Char = btChar, /* character */
771 bt_UChar = btUChar, /* unsigned character */
772 bt_Short = btShort, /* short */
773 bt_UShort = btUShort, /* unsigned short */
774 bt_Int = btInt, /* int */
775 bt_UInt = btUInt, /* unsigned int */
776 bt_Long = btLong, /* long */
777 bt_ULong = btULong, /* unsigned long */
778 bt_Float = btFloat, /* float (real) */
779 bt_Double = btDouble, /* Double (real) */
780 bt_Struct = btStruct, /* Structure (Record) */
781 bt_Union = btUnion, /* Union (variant) */
782 bt_Enum = btEnum, /* Enumerated */
783 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
784 bt_Range = btRange, /* subrange of int */
785 bt_Set = btSet, /* pascal sets */
786 bt_Complex = btComplex, /* fortran complex */
787 bt_DComplex = btDComplex, /* fortran double complex */
788 bt_Indirect = btIndirect, /* forward or unnamed typedef */
789 bt_FixedDec = btFixedDec, /* Fixed Decimal */
790 bt_FloatDec = btFloatDec, /* Float Decimal */
791 bt_String = btString, /* Varying Length Character String */
792 bt_Bit = btBit, /* Aligned Bit String */
793 bt_Picture = btPicture, /* Picture */
794
795 #ifdef btVoid
796 bt_Void = btVoid, /* Void */
797 #else
798 #define bt_Void bt_Nil
799 #endif
800
801 bt_Max = btMax /* Max basic type+1 */
802 } bt_t;
803
804 \f
805
806 /* Basic COFF storage classes. */
807 enum coff_storage {
808 C_EFCN = -1,
809 C_NULL = 0,
810 C_AUTO = 1,
811 C_EXT = 2,
812 C_STAT = 3,
813 C_REG = 4,
814 C_EXTDEF = 5,
815 C_LABEL = 6,
816 C_ULABEL = 7,
817 C_MOS = 8,
818 C_ARG = 9,
819 C_STRTAG = 10,
820 C_MOU = 11,
821 C_UNTAG = 12,
822 C_TPDEF = 13,
823 C_USTATIC = 14,
824 C_ENTAG = 15,
825 C_MOE = 16,
826 C_REGPARM = 17,
827 C_FIELD = 18,
828 C_BLOCK = 100,
829 C_FCN = 101,
830 C_EOS = 102,
831 C_FILE = 103,
832 C_LINE = 104,
833 C_ALIAS = 105,
834 C_HIDDEN = 106,
835 C_MAX = 107
836 } coff_storage_t;
837
838 /* Regular COFF fundamental type. */
839 typedef enum coff_type {
840 T_NULL = 0,
841 T_ARG = 1,
842 T_CHAR = 2,
843 T_SHORT = 3,
844 T_INT = 4,
845 T_LONG = 5,
846 T_FLOAT = 6,
847 T_DOUBLE = 7,
848 T_STRUCT = 8,
849 T_UNION = 9,
850 T_ENUM = 10,
851 T_MOE = 11,
852 T_UCHAR = 12,
853 T_USHORT = 13,
854 T_UINT = 14,
855 T_ULONG = 15,
856 T_MAX = 16
857 } coff_type_t;
858
859 /* Regular COFF derived types. */
860 typedef enum coff_dt {
861 DT_NON = 0,
862 DT_PTR = 1,
863 DT_FCN = 2,
864 DT_ARY = 3,
865 DT_MAX = 4
866 } coff_dt_t;
867
868 #define N_BTMASK 017 /* bitmask to isolate basic type */
869 #define N_TMASK 003 /* bitmask to isolate derived type */
870 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
871 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
872 #define N_TQ 6 /* # of type qualifiers */
873
874 /* States for whether to hash type or not. */
875 typedef enum hash_state {
876 hash_no = 0, /* don't hash type */
877 hash_yes = 1, /* ok to hash type, or use previous hash */
878 hash_record = 2 /* ok to record hash, but don't use prev. */
879 } hash_state_t;
880
881
882 /* Types of different sized allocation requests. */
883 enum alloc_type {
884 alloc_type_none, /* dummy value */
885 alloc_type_scope, /* nested scopes linked list */
886 alloc_type_vlinks, /* glue linking pages in varray */
887 alloc_type_shash, /* string hash element */
888 alloc_type_thash, /* type hash element */
889 alloc_type_tag, /* struct/union/tag element */
890 alloc_type_forward, /* element to hold unknown tag */
891 alloc_type_thead, /* head of type hash list */
892 alloc_type_varray, /* general varray allocation */
893 alloc_type_last /* last+1 element for array bounds */
894 };
895
896 \f
897 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
898 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
899
900
901 /* Structures to provide n-number of virtual arrays, each of which can
902 grow linearly, and which are written in the object file as sequential
903 pages. On systems with a BSD malloc that define USE_MALLOC, the
904 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
905 adds its overhead, and rounds up to the next power of 2. Pages are
906 linked together via a linked list.
907
908 If PAGE_SIZE is > 4096, the string length in the shash_t structure
909 can't be represented (assuming there are strings > 4096 bytes). */
910
911 #ifndef PAGE_SIZE
912 #define PAGE_SIZE 4096 /* size of varray pages */
913 #endif
914
915 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
916
917
918 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
919 #ifndef USE_MALLOC /* in one memory request */
920 #define MAX_CLUSTER_PAGES 64
921 #else
922 #define MAX_CLUSTER_PAGES 63
923 #endif
924 #endif
925
926
927 /* Linked list connecting separate page allocations. */
928 typedef struct vlinks {
929 struct vlinks *prev; /* previous set of pages */
930 struct vlinks *next; /* next set of pages */
931 union page *datum; /* start of page */
932 unsigned long start_index; /* starting index # of page */
933 } vlinks_t;
934
935
936 /* Virtual array header. */
937 typedef struct varray {
938 vlinks_t *first; /* first page link */
939 vlinks_t *last; /* last page link */
940 unsigned long num_allocated; /* # objects allocated */
941 unsigned short object_size; /* size in bytes of each object */
942 unsigned short objects_per_page; /* # objects that can fit on a page */
943 unsigned short objects_last_page; /* # objects allocated on last page */
944 } varray_t;
945
946 #ifndef MALLOC_CHECK
947 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
948 #else
949 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
950 #endif
951
952 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
953 (vlinks_t *) 0, /* first */ \
954 (vlinks_t *) 0, /* last */ \
955 0, /* num_allocated */ \
956 sizeof (type), /* object_size */ \
957 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
958 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
959 }
960
961 /* Master type for indexes within the symbol table. */
962 typedef unsigned long symint_t;
963
964
965 /* Linked list support for nested scopes (file, block, structure, etc.). */
966 typedef struct scope {
967 struct scope *prev; /* previous scope level */
968 struct scope *free; /* free list pointer */
969 SYMR *lsym; /* pointer to local symbol node */
970 symint_t lnumber; /* lsym index */
971 st_t type; /* type of the node */
972 } scope_t;
973
974
975 /* Forward reference list for tags referenced, but not yet defined. */
976 typedef struct forward {
977 struct forward *next; /* next forward reference */
978 struct forward *free; /* free list pointer */
979 AUXU *ifd_ptr; /* pointer to store file index */
980 AUXU *index_ptr; /* pointer to store symbol index */
981 AUXU *type_ptr; /* pointer to munge type info */
982 } forward_t;
983
984
985 /* Linked list support for tags. The first tag in the list is always
986 the current tag for that block. */
987 typedef struct tag {
988 struct tag *free; /* free list pointer */
989 struct shash *hash_ptr; /* pointer to the hash table head */
990 struct tag *same_name; /* tag with same name in outer scope */
991 struct tag *same_block; /* next tag defined in the same block. */
992 struct forward *forward_ref; /* list of forward references */
993 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
994 symint_t ifd; /* file # tag defined in */
995 symint_t indx; /* index within file's local symbols */
996 } tag_t;
997
998
999 /* Head of a block's linked list of tags. */
1000 typedef struct thead {
1001 struct thead *prev; /* previous block */
1002 struct thead *free; /* free list pointer */
1003 struct tag *first_tag; /* first tag in block defined */
1004 } thead_t;
1005
1006
1007 /* Union containing pointers to each the small structures which are freed up. */
1008 typedef union small_free {
1009 scope_t *f_scope; /* scope structure */
1010 thead_t *f_thead; /* tag head structure */
1011 tag_t *f_tag; /* tag element structure */
1012 forward_t *f_forward; /* forward tag reference */
1013 } small_free_t;
1014
1015
1016 /* String hash table support. The size of the hash table must fit
1017 within a page. */
1018
1019 #ifndef SHASH_SIZE
1020 #define SHASH_SIZE 1009
1021 #endif
1022
1023 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1024
1025 typedef struct shash {
1026 struct shash *next; /* next hash value */
1027 char *string; /* string we are hashing */
1028 symint_t len; /* string length */
1029 symint_t indx; /* index within string table */
1030 EXTR *esym_ptr; /* global symbol pointer */
1031 SYMR *sym_ptr; /* local symbol pointer */
1032 SYMR *end_ptr; /* symbol pointer to end block */
1033 tag_t *tag_ptr; /* tag pointer */
1034 PDR *proc_ptr; /* procedure descriptor pointer */
1035 } shash_t;
1036
1037
1038 /* Type hash table support. The size of the hash table must fit
1039 within a page with the other extended file descriptor information.
1040 Because unique types which are hashed are fewer in number than
1041 strings, we use a smaller hash value. */
1042
1043 #ifndef THASH_SIZE
1044 #define THASH_SIZE 113
1045 #endif
1046
1047 typedef struct thash {
1048 struct thash *next; /* next hash value */
1049 AUXU type; /* type we are hashing */
1050 symint_t indx; /* index within string table */
1051 } thash_t;
1052
1053
1054 /* Extended file descriptor that contains all of the support necessary
1055 to add things to each file separately. */
1056 typedef struct efdr {
1057 FDR fdr; /* File header to be written out */
1058 FDR *orig_fdr; /* original file header */
1059 char *name; /* filename */
1060 int name_len; /* length of the filename */
1061 symint_t void_type; /* aux. pointer to 'void' type */
1062 symint_t int_type; /* aux. pointer to 'int' type */
1063 scope_t *cur_scope; /* current nested scopes */
1064 symint_t file_index; /* current file number */
1065 int nested_scopes; /* # nested scopes */
1066 varray_t strings; /* local strings */
1067 varray_t symbols; /* local symbols */
1068 varray_t procs; /* procedures */
1069 varray_t aux_syms; /* auxiliary symbols */
1070 struct efdr *next_file; /* next file descriptor */
1071 /* string/type hash tables */
1072 shash_t **shash_head; /* string hash table */
1073 thash_t *thash_head[THASH_SIZE];
1074 } efdr_t;
1075
1076 /* Pre-initialized extended file structure. */
1077 static efdr_t init_file =
1078 {
1079 { /* FDR structure */
1080 0, /* adr: memory address of beginning of file */
1081 0, /* rss: file name (of source, if known) */
1082 0, /* issBase: file's string space */
1083 0, /* cbSs: number of bytes in the ss */
1084 0, /* isymBase: beginning of symbols */
1085 0, /* csym: count file's of symbols */
1086 0, /* ilineBase: file's line symbols */
1087 0, /* cline: count of file's line symbols */
1088 0, /* ioptBase: file's optimization entries */
1089 0, /* copt: count of file's optimization entries */
1090 0, /* ipdFirst: start of procedures for this file */
1091 0, /* cpd: count of procedures for this file */
1092 0, /* iauxBase: file's auxiliary entries */
1093 0, /* caux: count of file's auxiliary entries */
1094 0, /* rfdBase: index into the file indirect table */
1095 0, /* crfd: count file indirect entries */
1096 langC, /* lang: language for this file */
1097 1, /* fMerge: whether this file can be merged */
1098 0, /* fReadin: true if read in (not just created) */
1099 #ifdef HOST_WORDS_BIG_ENDIAN
1100 1, /* fBigendian: if 1, compiled on big endian machine */
1101 #else
1102 0, /* fBigendian: if 1, compiled on big endian machine */
1103 #endif
1104 GLEVEL_2, /* glevel: level this file was compiled with */
1105 0, /* reserved: reserved for future use */
1106 0, /* cbLineOffset: byte offset from header for this file ln's */
1107 0, /* cbLine: size of lines for this file */
1108 },
1109
1110 (FDR *) 0, /* orig_fdr: original file header pointer */
1111 (char *) 0, /* name: pointer to filename */
1112 0, /* name_len: length of filename */
1113 0, /* void_type: ptr to aux node for void type */
1114 0, /* int_type: ptr to aux node for int type */
1115 (scope_t *) 0, /* cur_scope: current scope being processed */
1116 0, /* file_index: current file # */
1117 0, /* nested_scopes: # nested scopes */
1118 INIT_VARRAY (char), /* strings: local string varray */
1119 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1120 INIT_VARRAY (PDR), /* procs: procedure varray */
1121 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1122
1123 (struct efdr *) 0, /* next_file: next file structure */
1124
1125 (shash_t **) 0, /* shash_head: string hash table */
1126 { 0 }, /* thash_head: type hash table */
1127 };
1128
1129
1130 static efdr_t *first_file; /* first file descriptor */
1131 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1132
1133
1134 /* Union of various things that are held in pages. */
1135 typedef union page {
1136 char byte [ PAGE_SIZE ];
1137 unsigned char ubyte [ PAGE_SIZE ];
1138 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1139 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1140 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1141 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1142 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1143 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1144 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1145 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1146 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1147 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1148 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1149 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1150 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1151 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1152 } page_t;
1153
1154
1155 /* Structure holding allocation information for small sized structures. */
1156 typedef struct alloc_info {
1157 const char *alloc_name; /* name of this allocation type (must be first) */
1158 page_t *cur_page; /* current page being allocated from */
1159 small_free_t free_list; /* current free list if any */
1160 int unallocated; /* number of elements unallocated on page */
1161 int total_alloc; /* total number of allocations */
1162 int total_free; /* total number of frees */
1163 int total_pages; /* total number of pages allocated */
1164 } alloc_info_t;
1165
1166 /* Type information collected together. */
1167 typedef struct type_info {
1168 bt_t basic_type; /* basic type */
1169 coff_type_t orig_type; /* original COFF-based type */
1170 int num_tq; /* # type qualifiers */
1171 int num_dims; /* # dimensions */
1172 int num_sizes; /* # sizes */
1173 int extra_sizes; /* # extra sizes not tied with dims */
1174 tag_t * tag_ptr; /* tag pointer */
1175 int bitfield; /* symbol is a bitfield */
1176 int unknown_tag; /* this is an unknown tag */
1177 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1178 symint_t dimensions [N_TQ]; /* dimensions for each array */
1179 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1180 struct/union/enum + bitfield size */
1181 } type_info_t;
1182
1183 /* Pre-initialized type_info struct. */
1184 static type_info_t type_info_init = {
1185 bt_Nil, /* basic type */
1186 T_NULL, /* original COFF-based type */
1187 0, /* # type qualifiers */
1188 0, /* # dimensions */
1189 0, /* # sizes */
1190 0, /* sizes not tied with dims */
1191 NULL, /* ptr to tag */
1192 0, /* bitfield */
1193 0, /* unknown tag */
1194 { /* type qualifiers */
1195 tq_Nil,
1196 tq_Nil,
1197 tq_Nil,
1198 tq_Nil,
1199 tq_Nil,
1200 tq_Nil,
1201 },
1202 { /* dimensions */
1203 0,
1204 0,
1205 0,
1206 0,
1207 0,
1208 0
1209 },
1210 { /* sizes */
1211 0,
1212 0,
1213 0,
1214 0,
1215 0,
1216 0,
1217 0,
1218 0,
1219 },
1220 };
1221
1222
1223 /* Global virtual arrays & hash table for external strings as well as
1224 for the tags table and global tables for file descriptors, and
1225 dense numbers. */
1226
1227 static varray_t file_desc = INIT_VARRAY (efdr_t);
1228 static varray_t dense_num = INIT_VARRAY (DNR);
1229 static varray_t tag_strings = INIT_VARRAY (char);
1230 static varray_t ext_strings = INIT_VARRAY (char);
1231 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1232
1233 static shash_t *orig_str_hash[SHASH_SIZE];
1234 static shash_t *ext_str_hash [SHASH_SIZE];
1235 static shash_t *tag_hash [SHASH_SIZE];
1236
1237 /* Static types for int and void. Also, remember the last function's
1238 type (which is set up when we encounter the declaration for the
1239 function, and used when the end block for the function is emitted. */
1240
1241 static type_info_t int_type_info;
1242 static type_info_t void_type_info;
1243 static type_info_t last_func_type_info;
1244 static EXTR *last_func_eptr;
1245
1246
1247 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1248 really should use bt_Void, but this causes the current ecoff GDB to
1249 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1250 2.0) doesn't understand it, even though the compiler generates it.
1251 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1252 suite, but for now go with what works. */
1253
1254 static bt_t map_coff_types[ (int)T_MAX ] = {
1255 bt_Nil, /* T_NULL */
1256 bt_Nil, /* T_ARG */
1257 bt_Char, /* T_CHAR */
1258 bt_Short, /* T_SHORT */
1259 bt_Int, /* T_INT */
1260 bt_Long, /* T_LONG */
1261 bt_Float, /* T_FLOAT */
1262 bt_Double, /* T_DOUBLE */
1263 bt_Struct, /* T_STRUCT */
1264 bt_Union, /* T_UNION */
1265 bt_Enum, /* T_ENUM */
1266 bt_Enum, /* T_MOE */
1267 bt_UChar, /* T_UCHAR */
1268 bt_UShort, /* T_USHORT */
1269 bt_UInt, /* T_UINT */
1270 bt_ULong /* T_ULONG */
1271 };
1272
1273 /* Convert COFF storage class to ECOFF storage class. */
1274 static sc_t map_coff_storage[ (int)C_MAX ] = {
1275 sc_Nil, /* 0: C_NULL */
1276 sc_Abs, /* 1: C_AUTO auto var */
1277 sc_Undefined, /* 2: C_EXT external */
1278 sc_Data, /* 3: C_STAT static */
1279 sc_Register, /* 4: C_REG register */
1280 sc_Undefined, /* 5: C_EXTDEF ??? */
1281 sc_Text, /* 6: C_LABEL label */
1282 sc_Text, /* 7: C_ULABEL user label */
1283 sc_Info, /* 8: C_MOS member of struct */
1284 sc_Abs, /* 9: C_ARG argument */
1285 sc_Info, /* 10: C_STRTAG struct tag */
1286 sc_Info, /* 11: C_MOU member of union */
1287 sc_Info, /* 12: C_UNTAG union tag */
1288 sc_Info, /* 13: C_TPDEF typedef */
1289 sc_Data, /* 14: C_USTATIC ??? */
1290 sc_Info, /* 15: C_ENTAG enum tag */
1291 sc_Info, /* 16: C_MOE member of enum */
1292 sc_Register, /* 17: C_REGPARM register parameter */
1293 sc_Bits, /* 18; C_FIELD bitfield */
1294 sc_Nil, /* 19 */
1295 sc_Nil, /* 20 */
1296 sc_Nil, /* 21 */
1297 sc_Nil, /* 22 */
1298 sc_Nil, /* 23 */
1299 sc_Nil, /* 24 */
1300 sc_Nil, /* 25 */
1301 sc_Nil, /* 26 */
1302 sc_Nil, /* 27 */
1303 sc_Nil, /* 28 */
1304 sc_Nil, /* 29 */
1305 sc_Nil, /* 30 */
1306 sc_Nil, /* 31 */
1307 sc_Nil, /* 32 */
1308 sc_Nil, /* 33 */
1309 sc_Nil, /* 34 */
1310 sc_Nil, /* 35 */
1311 sc_Nil, /* 36 */
1312 sc_Nil, /* 37 */
1313 sc_Nil, /* 38 */
1314 sc_Nil, /* 39 */
1315 sc_Nil, /* 40 */
1316 sc_Nil, /* 41 */
1317 sc_Nil, /* 42 */
1318 sc_Nil, /* 43 */
1319 sc_Nil, /* 44 */
1320 sc_Nil, /* 45 */
1321 sc_Nil, /* 46 */
1322 sc_Nil, /* 47 */
1323 sc_Nil, /* 48 */
1324 sc_Nil, /* 49 */
1325 sc_Nil, /* 50 */
1326 sc_Nil, /* 51 */
1327 sc_Nil, /* 52 */
1328 sc_Nil, /* 53 */
1329 sc_Nil, /* 54 */
1330 sc_Nil, /* 55 */
1331 sc_Nil, /* 56 */
1332 sc_Nil, /* 57 */
1333 sc_Nil, /* 58 */
1334 sc_Nil, /* 59 */
1335 sc_Nil, /* 60 */
1336 sc_Nil, /* 61 */
1337 sc_Nil, /* 62 */
1338 sc_Nil, /* 63 */
1339 sc_Nil, /* 64 */
1340 sc_Nil, /* 65 */
1341 sc_Nil, /* 66 */
1342 sc_Nil, /* 67 */
1343 sc_Nil, /* 68 */
1344 sc_Nil, /* 69 */
1345 sc_Nil, /* 70 */
1346 sc_Nil, /* 71 */
1347 sc_Nil, /* 72 */
1348 sc_Nil, /* 73 */
1349 sc_Nil, /* 74 */
1350 sc_Nil, /* 75 */
1351 sc_Nil, /* 76 */
1352 sc_Nil, /* 77 */
1353 sc_Nil, /* 78 */
1354 sc_Nil, /* 79 */
1355 sc_Nil, /* 80 */
1356 sc_Nil, /* 81 */
1357 sc_Nil, /* 82 */
1358 sc_Nil, /* 83 */
1359 sc_Nil, /* 84 */
1360 sc_Nil, /* 85 */
1361 sc_Nil, /* 86 */
1362 sc_Nil, /* 87 */
1363 sc_Nil, /* 88 */
1364 sc_Nil, /* 89 */
1365 sc_Nil, /* 90 */
1366 sc_Nil, /* 91 */
1367 sc_Nil, /* 92 */
1368 sc_Nil, /* 93 */
1369 sc_Nil, /* 94 */
1370 sc_Nil, /* 95 */
1371 sc_Nil, /* 96 */
1372 sc_Nil, /* 97 */
1373 sc_Nil, /* 98 */
1374 sc_Nil, /* 99 */
1375 sc_Text, /* 100: C_BLOCK block start/end */
1376 sc_Text, /* 101: C_FCN function start/end */
1377 sc_Info, /* 102: C_EOS end of struct/union/enum */
1378 sc_Nil, /* 103: C_FILE file start */
1379 sc_Nil, /* 104: C_LINE line number */
1380 sc_Nil, /* 105: C_ALIAS combined type info */
1381 sc_Nil, /* 106: C_HIDDEN ??? */
1382 };
1383
1384 /* Convert COFF storage class to ECOFF symbol type. */
1385 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1386 st_Nil, /* 0: C_NULL */
1387 st_Local, /* 1: C_AUTO auto var */
1388 st_Global, /* 2: C_EXT external */
1389 st_Static, /* 3: C_STAT static */
1390 st_Local, /* 4: C_REG register */
1391 st_Global, /* 5: C_EXTDEF ??? */
1392 st_Label, /* 6: C_LABEL label */
1393 st_Label, /* 7: C_ULABEL user label */
1394 st_Member, /* 8: C_MOS member of struct */
1395 st_Param, /* 9: C_ARG argument */
1396 st_Block, /* 10: C_STRTAG struct tag */
1397 st_Member, /* 11: C_MOU member of union */
1398 st_Block, /* 12: C_UNTAG union tag */
1399 st_Typedef, /* 13: C_TPDEF typedef */
1400 st_Static, /* 14: C_USTATIC ??? */
1401 st_Block, /* 15: C_ENTAG enum tag */
1402 st_Member, /* 16: C_MOE member of enum */
1403 st_Param, /* 17: C_REGPARM register parameter */
1404 st_Member, /* 18; C_FIELD bitfield */
1405 st_Nil, /* 19 */
1406 st_Nil, /* 20 */
1407 st_Nil, /* 21 */
1408 st_Nil, /* 22 */
1409 st_Nil, /* 23 */
1410 st_Nil, /* 24 */
1411 st_Nil, /* 25 */
1412 st_Nil, /* 26 */
1413 st_Nil, /* 27 */
1414 st_Nil, /* 28 */
1415 st_Nil, /* 29 */
1416 st_Nil, /* 30 */
1417 st_Nil, /* 31 */
1418 st_Nil, /* 32 */
1419 st_Nil, /* 33 */
1420 st_Nil, /* 34 */
1421 st_Nil, /* 35 */
1422 st_Nil, /* 36 */
1423 st_Nil, /* 37 */
1424 st_Nil, /* 38 */
1425 st_Nil, /* 39 */
1426 st_Nil, /* 40 */
1427 st_Nil, /* 41 */
1428 st_Nil, /* 42 */
1429 st_Nil, /* 43 */
1430 st_Nil, /* 44 */
1431 st_Nil, /* 45 */
1432 st_Nil, /* 46 */
1433 st_Nil, /* 47 */
1434 st_Nil, /* 48 */
1435 st_Nil, /* 49 */
1436 st_Nil, /* 50 */
1437 st_Nil, /* 51 */
1438 st_Nil, /* 52 */
1439 st_Nil, /* 53 */
1440 st_Nil, /* 54 */
1441 st_Nil, /* 55 */
1442 st_Nil, /* 56 */
1443 st_Nil, /* 57 */
1444 st_Nil, /* 58 */
1445 st_Nil, /* 59 */
1446 st_Nil, /* 60 */
1447 st_Nil, /* 61 */
1448 st_Nil, /* 62 */
1449 st_Nil, /* 63 */
1450 st_Nil, /* 64 */
1451 st_Nil, /* 65 */
1452 st_Nil, /* 66 */
1453 st_Nil, /* 67 */
1454 st_Nil, /* 68 */
1455 st_Nil, /* 69 */
1456 st_Nil, /* 70 */
1457 st_Nil, /* 71 */
1458 st_Nil, /* 72 */
1459 st_Nil, /* 73 */
1460 st_Nil, /* 74 */
1461 st_Nil, /* 75 */
1462 st_Nil, /* 76 */
1463 st_Nil, /* 77 */
1464 st_Nil, /* 78 */
1465 st_Nil, /* 79 */
1466 st_Nil, /* 80 */
1467 st_Nil, /* 81 */
1468 st_Nil, /* 82 */
1469 st_Nil, /* 83 */
1470 st_Nil, /* 84 */
1471 st_Nil, /* 85 */
1472 st_Nil, /* 86 */
1473 st_Nil, /* 87 */
1474 st_Nil, /* 88 */
1475 st_Nil, /* 89 */
1476 st_Nil, /* 90 */
1477 st_Nil, /* 91 */
1478 st_Nil, /* 92 */
1479 st_Nil, /* 93 */
1480 st_Nil, /* 94 */
1481 st_Nil, /* 95 */
1482 st_Nil, /* 96 */
1483 st_Nil, /* 97 */
1484 st_Nil, /* 98 */
1485 st_Nil, /* 99 */
1486 st_Block, /* 100: C_BLOCK block start/end */
1487 st_Proc, /* 101: C_FCN function start/end */
1488 st_End, /* 102: C_EOS end of struct/union/enum */
1489 st_File, /* 103: C_FILE file start */
1490 st_Nil, /* 104: C_LINE line number */
1491 st_Nil, /* 105: C_ALIAS combined type info */
1492 st_Nil, /* 106: C_HIDDEN ??? */
1493 };
1494
1495 /* Map COFF derived types to ECOFF type qualifiers. */
1496 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1497 tq_Nil, /* 0: DT_NON no more qualifiers */
1498 tq_Ptr, /* 1: DT_PTR pointer */
1499 tq_Proc, /* 2: DT_FCN function */
1500 tq_Array, /* 3: DT_ARY array */
1501 };
1502
1503
1504 /* Keep track of different sized allocation requests. */
1505 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1506
1507 \f
1508 /* Pointers and such to the original symbol table that is read in. */
1509 static struct filehdr orig_file_header; /* global object file header */
1510
1511 static HDRR orig_sym_hdr; /* symbolic header on input */
1512 static char *orig_linenum; /* line numbers */
1513 static DNR *orig_dense; /* dense numbers */
1514 static PDR *orig_procs; /* procedures */
1515 static SYMR *orig_local_syms; /* local symbols */
1516 static OPTR *orig_opt_syms; /* optimization symbols */
1517 static AUXU *orig_aux_syms; /* auxiliary symbols */
1518 static char *orig_local_strs; /* local strings */
1519 static char *orig_ext_strs; /* external strings */
1520 static FDR *orig_files; /* file descriptors */
1521 static symint_t *orig_rfds; /* relative file desc's */
1522 static EXTR *orig_ext_syms; /* external symbols */
1523
1524 /* Macros to convert an index into a given object within the original
1525 symbol table. */
1526 #define CHECK(num,max,str) \
1527 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1528
1529 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1530 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1531 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1532 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1533 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1534 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1535 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1536 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1537 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1538 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1539 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1540
1541 /* Various other statics. */
1542 static HDRR symbolic_header; /* symbolic header */
1543 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1544 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1545 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1546 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1547 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1548 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1549 static long file_offset = 0; /* current file offset */
1550 static long max_file_offset = 0; /* maximum file offset */
1551 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1552 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1553 static char *progname = (char *) 0; /* program name for errors */
1554 static const char *input_name = "stdin"; /* name of input file */
1555 static char *object_name = (char *) 0; /* tmp. name of object file */
1556 static char *obj_in_name = (char *) 0; /* name of input object file */
1557 static char *cur_line_start = (char *) 0; /* current line read in */
1558 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1559 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1560 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1561 static long line_number = 0; /* current input line number */
1562 static int debug = 0; /* trace functions */
1563 static int version = 0; /* print version # */
1564 static int had_errors = 0; /* != 0 if errors were found */
1565 static int rename_output = 0; /* != 0 if rename output file*/
1566 static int delete_input = 0; /* != 0 if delete input after done */
1567 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1568
1569
1570 /* Pseudo symbol to use when putting stabs into the symbol table. */
1571 #ifndef STABS_SYMBOL
1572 #define STABS_SYMBOL "@stabs"
1573 #endif
1574
1575 static char stabs_symbol[] = STABS_SYMBOL;
1576
1577 \f
1578 /* Forward reference for functions. See the definition for more details. */
1579
1580 #ifndef STATIC
1581 #define STATIC static
1582 #endif
1583
1584 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1585
1586 STATIC shash_t *hash_string __proto((const char *,
1587 Ptrdiff_t,
1588 shash_t **,
1589 symint_t *));
1590
1591 STATIC symint_t add_string __proto((varray_t *,
1592 shash_t **,
1593 const char *,
1594 const char *,
1595 shash_t **));
1596
1597 STATIC symint_t add_local_symbol
1598 __proto((const char *,
1599 const char *,
1600 st_t,
1601 sc_t,
1602 symint_t,
1603 symint_t));
1604
1605 STATIC symint_t add_ext_symbol __proto((const char *,
1606 const char *,
1607 st_t,
1608 sc_t,
1609 long,
1610 symint_t,
1611 int));
1612
1613 STATIC symint_t add_aux_sym_symint
1614 __proto((symint_t));
1615
1616 STATIC symint_t add_aux_sym_rndx
1617 __proto((int, symint_t));
1618
1619 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1620 hash_state_t,
1621 thash_t **));
1622
1623 STATIC tag_t * get_tag __proto((const char *,
1624 const char *,
1625 symint_t,
1626 bt_t));
1627
1628 STATIC void add_unknown_tag __proto((tag_t *));
1629
1630 STATIC void add_procedure __proto((const char *,
1631 const char *));
1632
1633 STATIC void add_file __proto((const char *,
1634 const char *));
1635
1636 STATIC void add_bytes __proto((varray_t *,
1637 char *,
1638 Size_t));
1639
1640 STATIC void add_varray_page __proto((varray_t *));
1641
1642 STATIC void update_headers __proto((void));
1643
1644 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1645 STATIC void write_object __proto((void));
1646 STATIC const char *st_to_string __proto((st_t));
1647 STATIC const char *sc_to_string __proto((sc_t));
1648 STATIC char *read_line __proto((void));
1649 STATIC void parse_input __proto((void));
1650 STATIC void mark_stabs __proto((const char *));
1651 STATIC void parse_begin __proto((const char *));
1652 STATIC void parse_bend __proto((const char *));
1653 STATIC void parse_def __proto((const char *));
1654 STATIC void parse_end __proto((const char *));
1655 STATIC void parse_ent __proto((const char *));
1656 STATIC void parse_file __proto((const char *));
1657 STATIC void parse_stabs_common
1658 __proto((const char *, const char *, const char *));
1659 STATIC void parse_stabs __proto((const char *));
1660 STATIC void parse_stabn __proto((const char *));
1661 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1662 STATIC void copy_object __proto((void));
1663
1664 STATIC void catch_signal __proto((int));
1665 STATIC page_t *allocate_page __proto((void));
1666
1667 STATIC page_t *allocate_multiple_pages
1668 __proto((Size_t));
1669
1670 STATIC void free_multiple_pages
1671 __proto((page_t *, Size_t));
1672
1673 #ifndef MALLOC_CHECK
1674 STATIC page_t *allocate_cluster
1675 __proto((Size_t));
1676 #endif
1677
1678 STATIC forward_t *allocate_forward __proto((void));
1679 STATIC scope_t *allocate_scope __proto((void));
1680 STATIC shash_t *allocate_shash __proto((void));
1681 STATIC tag_t *allocate_tag __proto((void));
1682 STATIC thash_t *allocate_thash __proto((void));
1683 STATIC thead_t *allocate_thead __proto((void));
1684 STATIC vlinks_t *allocate_vlinks __proto((void));
1685
1686 STATIC void free_forward __proto((forward_t *));
1687 STATIC void free_scope __proto((scope_t *));
1688 STATIC void free_tag __proto((tag_t *));
1689 STATIC void free_thead __proto((thead_t *));
1690
1691 STATIC char *local_index __proto((const char *, int));
1692 STATIC char *local_rindex __proto((const char *, int));
1693
1694 extern char *mktemp __proto((char *));
1695 extern long strtol __proto((const char *, char **, int));
1696
1697 extern char *optarg;
1698 extern int optind;
1699 extern int opterr;
1700 extern char *version_string;
1701 \f
1702 /* List of assembler pseudo ops and beginning sequences that need
1703 special actions. Someday, this should be a hash table, and such,
1704 but for now a linear list of names and calls to memcmp will
1705 do...... */
1706
1707 typedef struct _pseudo_ops {
1708 const char *name; /* pseudo-op in ascii */
1709 int len; /* length of name to compare */
1710 void (*func) __proto((const char *)); /* function to handle line */
1711 } pseudo_ops_t;
1712
1713 static pseudo_ops_t pseudo_ops[] = {
1714 { "#.def", sizeof("#.def")-1, parse_def },
1715 { "#.begin", sizeof("#.begin")-1, parse_begin },
1716 { "#.bend", sizeof("#.bend")-1, parse_bend },
1717 { ".end", sizeof(".end")-1, parse_end },
1718 { ".ent", sizeof(".ent")-1, parse_ent },
1719 { ".file", sizeof(".file")-1, parse_file },
1720 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1721 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1722 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1723 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1724 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1725 };
1726
1727 \f
1728 /* Add a page to a varray object. */
1729
1730 STATIC void
1731 add_varray_page (vp)
1732 varray_t *vp; /* varray to add page to */
1733 {
1734 vlinks_t *new_links = allocate_vlinks ();
1735
1736 #ifdef MALLOC_CHECK
1737 if (vp->object_size > 1)
1738 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1739 else
1740 #endif
1741 new_links->datum = allocate_page ();
1742
1743 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1744 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1745
1746 new_links->start_index = vp->num_allocated;
1747 vp->objects_last_page = 0;
1748
1749 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1750 vp->first = vp->last = new_links;
1751 else
1752 { /* 2nd or greater allocation */
1753 new_links->prev = vp->last;
1754 vp->last->next = new_links;
1755 vp->last = new_links;
1756 }
1757 }
1758
1759 \f
1760 /* Compute hash code (from tree.c) */
1761
1762 #define HASHBITS 30
1763
1764 STATIC shash_t *
1765 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1766 const char *text; /* ptr to text to hash */
1767 Ptrdiff_t hash_len; /* length of the text */
1768 shash_t **hash_tbl; /* hash table */
1769 symint_t *ret_hash_index; /* ptr to store hash index */
1770 {
1771 register unsigned long hi;
1772 register Ptrdiff_t i;
1773 register shash_t *ptr;
1774 register int first_ch = *text;
1775
1776 hi = hash_len;
1777 for (i = 0; i < hash_len; i++)
1778 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1779
1780 hi &= (1 << HASHBITS) - 1;
1781 hi %= SHASH_SIZE;
1782
1783 if (ret_hash_index != (symint_t *) 0)
1784 *ret_hash_index = hi;
1785
1786 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1787 if ((symint_t) hash_len == ptr->len
1788 && first_ch == ptr->string[0]
1789 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1790 break;
1791
1792 return ptr;
1793 }
1794
1795 \f
1796 /* Add a string (and null pad) to one of the string tables. A
1797 consequence of hashing strings, is that we don't let strings
1798 cross page boundaries. The extra nulls will be ignored. */
1799
1800 STATIC symint_t
1801 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1802 varray_t *vp; /* string virtual array */
1803 shash_t **hash_tbl; /* ptr to hash table */
1804 const char *start; /* 1st byte in string */
1805 const char *end_p1; /* 1st byte after string */
1806 shash_t **ret_hash; /* return hash pointer */
1807 {
1808 register Ptrdiff_t len = end_p1 - start;
1809 register shash_t *hash_ptr;
1810 symint_t hi;
1811
1812 if (len >= (Ptrdiff_t) PAGE_USIZE)
1813 fatal ("String too big (%ld bytes)", (long) len);
1814
1815 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1816 if (hash_ptr == (shash_t *) 0)
1817 {
1818 register char *p;
1819
1820 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1821 {
1822 vp->num_allocated
1823 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1824 add_varray_page (vp);
1825 }
1826
1827 hash_ptr = allocate_shash ();
1828 hash_ptr->next = hash_tbl[hi];
1829 hash_tbl[hi] = hash_ptr;
1830
1831 hash_ptr->len = len;
1832 hash_ptr->indx = vp->num_allocated;
1833 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1834
1835 vp->objects_last_page += len+1;
1836 vp->num_allocated += len+1;
1837
1838 while (len-- > 0)
1839 *p++ = *start++;
1840
1841 *p = '\0';
1842 }
1843
1844 if (ret_hash != (shash_t **) 0)
1845 *ret_hash = hash_ptr;
1846
1847 return hash_ptr->indx;
1848 }
1849
1850 \f
1851 /* Add a local symbol. */
1852
1853 STATIC symint_t
1854 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1855 const char *str_start; /* first byte in string */
1856 const char *str_end_p1; /* first byte after string */
1857 st_t type; /* symbol type */
1858 sc_t storage; /* storage class */
1859 symint_t value; /* value of symbol */
1860 symint_t indx; /* index to local/aux. syms */
1861 {
1862 register symint_t ret;
1863 register SYMR *psym;
1864 register scope_t *pscope;
1865 register thead_t *ptag_head;
1866 register tag_t *ptag;
1867 register tag_t *ptag_next;
1868 register varray_t *vp = &cur_file_ptr->symbols;
1869 register int scope_delta = 0;
1870 shash_t *hash_ptr = (shash_t *) 0;
1871
1872 if (vp->objects_last_page == vp->objects_per_page)
1873 add_varray_page (vp);
1874
1875 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1876
1877 psym->value = value;
1878 psym->st = (unsigned) type;
1879 psym->sc = (unsigned) storage;
1880 psym->index = indx;
1881 psym->iss = (str_start == (const char *) 0)
1882 ? 0
1883 : add_string (&cur_file_ptr->strings,
1884 &cur_file_ptr->shash_head[0],
1885 str_start,
1886 str_end_p1,
1887 &hash_ptr);
1888
1889 ret = vp->num_allocated++;
1890
1891 if (MIPS_IS_STAB(psym))
1892 return ret;
1893
1894 /* Save the symbol within the hash table if this is a static
1895 item, and it has a name. */
1896 if (hash_ptr != (shash_t *) 0
1897 && (type == st_Global || type == st_Static || type == st_Label
1898 || type == st_Proc || type == st_StaticProc))
1899 hash_ptr->sym_ptr = psym;
1900
1901 /* push or pop a scope if appropriate. */
1902 switch (type)
1903 {
1904 default:
1905 break;
1906
1907 case st_File: /* beginning of file */
1908 case st_Proc: /* procedure */
1909 case st_StaticProc: /* static procedure */
1910 case st_Block: /* begin scope */
1911 pscope = allocate_scope ();
1912 pscope->prev = cur_file_ptr->cur_scope;
1913 pscope->lsym = psym;
1914 pscope->lnumber = ret;
1915 pscope->type = type;
1916 cur_file_ptr->cur_scope = pscope;
1917
1918 if (type != st_File)
1919 scope_delta = 1;
1920
1921 /* For every block type except file, struct, union, or
1922 enumeration blocks, push a level on the tag stack. We omit
1923 file types, so that tags can span file boundaries. */
1924 if (type != st_File && storage != sc_Info)
1925 {
1926 ptag_head = allocate_thead ();
1927 ptag_head->first_tag = 0;
1928 ptag_head->prev = cur_tag_head;
1929 cur_tag_head = ptag_head;
1930 }
1931 break;
1932
1933 case st_End:
1934 pscope = cur_file_ptr->cur_scope;
1935 if (pscope == (scope_t *)0)
1936 error ("internal error, too many st_End's");
1937
1938 else
1939 {
1940 st_t begin_type = (st_t) pscope->lsym->st;
1941
1942 if (begin_type != st_File)
1943 scope_delta = -1;
1944
1945 /* Except for file, structure, union, or enumeration end
1946 blocks remove all tags created within this scope. */
1947 if (begin_type != st_File && storage != sc_Info)
1948 {
1949 ptag_head = cur_tag_head;
1950 cur_tag_head = ptag_head->prev;
1951
1952 for (ptag = ptag_head->first_tag;
1953 ptag != (tag_t *) 0;
1954 ptag = ptag_next)
1955 {
1956 if (ptag->forward_ref != (forward_t *) 0)
1957 add_unknown_tag (ptag);
1958
1959 ptag_next = ptag->same_block;
1960 ptag->hash_ptr->tag_ptr = ptag->same_name;
1961 free_tag (ptag);
1962 }
1963
1964 free_thead (ptag_head);
1965 }
1966
1967 cur_file_ptr->cur_scope = pscope->prev;
1968 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1969
1970 if (storage != sc_Info)
1971 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1972
1973 if (begin_type == st_File || begin_type == st_Block)
1974 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1975
1976 /* Functions push two or more aux words as follows:
1977 1st word: index+1 of the end symbol
1978 2nd word: type of the function (plus any aux words needed).
1979 Also, tie the external pointer back to the function begin symbol. */
1980 else
1981 {
1982 symint_t type;
1983 pscope->lsym->index = add_aux_sym_symint (ret+1);
1984 type = add_aux_sym_tir (&last_func_type_info,
1985 hash_no,
1986 &cur_file_ptr->thash_head[0]);
1987 if (last_func_eptr)
1988 {
1989 last_func_eptr->ifd = cur_file_ptr->file_index;
1990
1991 /* The index for an external st_Proc symbol is the index
1992 of the st_Proc symbol in the local symbol table. */
1993 last_func_eptr->asym.index = psym->index;
1994 }
1995 }
1996
1997 free_scope (pscope);
1998 }
1999 }
2000
2001 cur_file_ptr->nested_scopes += scope_delta;
2002
2003 if (debug && type != st_File
2004 && (debug > 2 || type == st_Block || type == st_End
2005 || type == st_Proc || type == st_StaticProc))
2006 {
2007 const char *sc_str = sc_to_string (storage);
2008 const char *st_str = st_to_string (type);
2009 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2010
2011 fprintf (stderr,
2012 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2013 value, depth, sc_str);
2014
2015 if (str_start && str_end_p1 - str_start > 0)
2016 fprintf (stderr, " st= %-11s name= %.*s\n",
2017 st_str, (int) (str_end_p1 - str_start), str_start);
2018 else
2019 {
2020 Size_t len = strlen (st_str);
2021 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2022 }
2023 }
2024
2025 return ret;
2026 }
2027
2028 \f
2029 /* Add an external symbol. */
2030
2031 STATIC symint_t
2032 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2033 const char *str_start; /* first byte in string */
2034 const char *str_end_p1; /* first byte after string */
2035 st_t type; /* symbol type */
2036 sc_t storage; /* storage class */
2037 long value; /* value of symbol */
2038 symint_t indx; /* index to local/aux. syms */
2039 int ifd; /* file index */
2040 {
2041 register EXTR *psym;
2042 register varray_t *vp = &ext_symbols;
2043 shash_t *hash_ptr = (shash_t *) 0;
2044
2045 if (debug > 1)
2046 {
2047 const char *sc_str = sc_to_string (storage);
2048 const char *st_str = st_to_string (type);
2049
2050 fprintf (stderr,
2051 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2052 value, ifd, sc_str);
2053
2054 if (str_start && str_end_p1 - str_start > 0)
2055 fprintf (stderr, " st= %-11s name= %.*s\n",
2056 st_str, (int) (str_end_p1 - str_start), str_start);
2057 else
2058 fprintf (stderr, " st= %s\n", st_str);
2059 }
2060
2061 if (vp->objects_last_page == vp->objects_per_page)
2062 add_varray_page (vp);
2063
2064 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2065
2066 psym->ifd = ifd;
2067 psym->asym.value = value;
2068 psym->asym.st = (unsigned) type;
2069 psym->asym.sc = (unsigned) storage;
2070 psym->asym.index = indx;
2071 psym->asym.iss = (str_start == (const char *) 0)
2072 ? 0
2073 : add_string (&ext_strings,
2074 &ext_str_hash[0],
2075 str_start,
2076 str_end_p1,
2077 &hash_ptr);
2078
2079 hash_ptr->esym_ptr = psym;
2080 return vp->num_allocated++;
2081 }
2082
2083 \f
2084 /* Add an auxiliary symbol (passing a symint). */
2085
2086 STATIC symint_t
2087 add_aux_sym_symint (aux_word)
2088 symint_t aux_word; /* auxiliary information word */
2089 {
2090 register AUXU *aux_ptr;
2091 register efdr_t *file_ptr = cur_file_ptr;
2092 register varray_t *vp = &file_ptr->aux_syms;
2093
2094 if (vp->objects_last_page == vp->objects_per_page)
2095 add_varray_page (vp);
2096
2097 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2098 aux_ptr->isym = aux_word;
2099
2100 return vp->num_allocated++;
2101 }
2102
2103
2104 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2105
2106 STATIC symint_t
2107 add_aux_sym_rndx (file_index, sym_index)
2108 int file_index;
2109 symint_t sym_index;
2110 {
2111 register AUXU *aux_ptr;
2112 register efdr_t *file_ptr = cur_file_ptr;
2113 register varray_t *vp = &file_ptr->aux_syms;
2114
2115 if (vp->objects_last_page == vp->objects_per_page)
2116 add_varray_page (vp);
2117
2118 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2119 aux_ptr->rndx.rfd = file_index;
2120 aux_ptr->rndx.index = sym_index;
2121
2122 return vp->num_allocated++;
2123 }
2124
2125 \f
2126 /* Add an auxiliary symbol (passing the basic type and possibly
2127 type qualifiers). */
2128
2129 STATIC symint_t
2130 add_aux_sym_tir (t, state, hash_tbl)
2131 type_info_t *t; /* current type information */
2132 hash_state_t state; /* whether to hash type or not */
2133 thash_t **hash_tbl; /* pointer to hash table to use */
2134 {
2135 register AUXU *aux_ptr;
2136 register efdr_t *file_ptr = cur_file_ptr;
2137 register varray_t *vp = &file_ptr->aux_syms;
2138 static AUXU init_aux;
2139 symint_t ret;
2140 int i;
2141 AUXU aux;
2142
2143 aux = init_aux;
2144 aux.ti.bt = (int) t->basic_type;
2145 aux.ti.continued = 0;
2146 aux.ti.fBitfield = t->bitfield;
2147
2148 aux.ti.tq0 = (int) t->type_qualifiers[0];
2149 aux.ti.tq1 = (int) t->type_qualifiers[1];
2150 aux.ti.tq2 = (int) t->type_qualifiers[2];
2151 aux.ti.tq3 = (int) t->type_qualifiers[3];
2152 aux.ti.tq4 = (int) t->type_qualifiers[4];
2153 aux.ti.tq5 = (int) t->type_qualifiers[5];
2154
2155
2156 /* For anything that adds additional information, we must not hash,
2157 so check here, and reset our state. */
2158
2159 if (state != hash_no
2160 && (t->type_qualifiers[0] == tq_Array
2161 || t->type_qualifiers[1] == tq_Array
2162 || t->type_qualifiers[2] == tq_Array
2163 || t->type_qualifiers[3] == tq_Array
2164 || t->type_qualifiers[4] == tq_Array
2165 || t->type_qualifiers[5] == tq_Array
2166 || t->basic_type == bt_Struct
2167 || t->basic_type == bt_Union
2168 || t->basic_type == bt_Enum
2169 || t->bitfield
2170 || t->num_dims > 0))
2171 state = hash_no;
2172
2173 /* See if we can hash this type, and save some space, but some types
2174 can't be hashed (because they contain arrays or continuations),
2175 and others can be put into the hash list, but cannot use existing
2176 types because other aux entries precede this one. */
2177
2178 if (state != hash_no)
2179 {
2180 register thash_t *hash_ptr;
2181 register symint_t hi;
2182
2183 hi = aux.isym & ((1 << HASHBITS) - 1);
2184 hi %= THASH_SIZE;
2185
2186 for (hash_ptr = hash_tbl[hi];
2187 hash_ptr != (thash_t *) 0;
2188 hash_ptr = hash_ptr->next)
2189 {
2190 if (aux.isym == hash_ptr->type.isym)
2191 break;
2192 }
2193
2194 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2195 return hash_ptr->indx;
2196
2197 if (hash_ptr == (thash_t *) 0)
2198 {
2199 hash_ptr = allocate_thash ();
2200 hash_ptr->next = hash_tbl[hi];
2201 hash_ptr->type = aux;
2202 hash_ptr->indx = vp->num_allocated;
2203 hash_tbl[hi] = hash_ptr;
2204 }
2205 }
2206
2207 /* Everything is set up, add the aux symbol. */
2208 if (vp->objects_last_page == vp->objects_per_page)
2209 add_varray_page (vp);
2210
2211 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2212 *aux_ptr = aux;
2213
2214 ret = vp->num_allocated++;
2215
2216 /* Add bitfield length if it exists.
2217
2218 NOTE: Mips documentation claims bitfield goes at the end of the
2219 AUX record, but the DECstation compiler emits it here.
2220 (This would only make a difference for enum bitfields.)
2221
2222 Also note: We use the last size given since gcc may emit 2
2223 for an enum bitfield. */
2224
2225 if (t->bitfield)
2226 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2227
2228
2229 /* Add tag information if needed. Structure, union, and enum
2230 references add 2 aux symbols: a [file index, symbol index]
2231 pointer to the structure type, and the current file index. */
2232
2233 if (t->basic_type == bt_Struct
2234 || t->basic_type == bt_Union
2235 || t->basic_type == bt_Enum)
2236 {
2237 register symint_t file_index = t->tag_ptr->ifd;
2238 register symint_t sym_index = t->tag_ptr->indx;
2239
2240 if (t->unknown_tag)
2241 {
2242 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2243 (void) add_aux_sym_symint ((symint_t)-1);
2244 }
2245 else if (sym_index != indexNil)
2246 {
2247 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2248 (void) add_aux_sym_symint (file_index);
2249 }
2250 else
2251 {
2252 register forward_t *forward_ref = allocate_forward ();
2253
2254 forward_ref->type_ptr = aux_ptr;
2255 forward_ref->next = t->tag_ptr->forward_ref;
2256 t->tag_ptr->forward_ref = forward_ref;
2257
2258 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2259 forward_ref->index_ptr
2260 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2261
2262 (void) add_aux_sym_symint (file_index);
2263 forward_ref->ifd_ptr
2264 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2265 }
2266 }
2267
2268 /* Add information about array bounds if they exist. */
2269 for (i = 0; i < t->num_dims; i++)
2270 {
2271 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2272 cur_file_ptr->int_type);
2273
2274 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2275 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2276 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2277 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2278 ? 0
2279 : (t->sizes[i] * 8) / t->dimensions[i]);
2280 };
2281
2282 /* NOTE: Mips documentation claims that the bitfield width goes here.
2283 But it needs to be emitted earlier. */
2284
2285 return ret;
2286 }
2287
2288 \f
2289 /* Add a tag to the tag table (unless it already exists). */
2290
2291 STATIC tag_t *
2292 get_tag (tag_start, tag_end_p1, indx, basic_type)
2293 const char *tag_start; /* 1st byte of tag name */
2294 const char *tag_end_p1; /* 1st byte after tag name */
2295 symint_t indx; /* index of tag start block */
2296 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2297 {
2298 shash_t *hash_ptr;
2299 tag_t *tag_ptr;
2300 hash_ptr = hash_string (tag_start,
2301 tag_end_p1 - tag_start,
2302 &tag_hash[0],
2303 (symint_t *) 0);
2304
2305 if (hash_ptr != (shash_t *) 0
2306 && hash_ptr->tag_ptr != (tag_t *) 0)
2307 {
2308 tag_ptr = hash_ptr->tag_ptr;
2309 if (indx != indexNil)
2310 {
2311 tag_ptr->basic_type = basic_type;
2312 tag_ptr->ifd = cur_file_ptr->file_index;
2313 tag_ptr->indx = indx;
2314 }
2315 return tag_ptr;
2316 }
2317
2318 (void) add_string (&tag_strings,
2319 &tag_hash[0],
2320 tag_start,
2321 tag_end_p1,
2322 &hash_ptr);
2323
2324 tag_ptr = allocate_tag ();
2325 tag_ptr->forward_ref = (forward_t *) 0;
2326 tag_ptr->hash_ptr = hash_ptr;
2327 tag_ptr->same_name = hash_ptr->tag_ptr;
2328 tag_ptr->basic_type = basic_type;
2329 tag_ptr->indx = indx;
2330 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2331 tag_ptr->same_block = cur_tag_head->first_tag;
2332
2333 cur_tag_head->first_tag = tag_ptr;
2334 hash_ptr->tag_ptr = tag_ptr;
2335
2336 return tag_ptr;
2337 }
2338
2339 \f
2340 /* Add an unknown {struct, union, enum} tag. */
2341
2342 STATIC void
2343 add_unknown_tag (ptag)
2344 tag_t *ptag; /* pointer to tag information */
2345 {
2346 shash_t *hash_ptr = ptag->hash_ptr;
2347 char *name_start = hash_ptr->string;
2348 char *name_end_p1 = name_start + hash_ptr->len;
2349 forward_t *f_next = ptag->forward_ref;
2350 forward_t *f_cur;
2351 int sym_index;
2352 int file_index = cur_file_ptr->file_index;
2353
2354 if (debug > 1)
2355 {
2356 const char *agg_type = "{unknown aggregate type}";
2357 switch (ptag->basic_type)
2358 {
2359 case bt_Struct: agg_type = "struct"; break;
2360 case bt_Union: agg_type = "union"; break;
2361 case bt_Enum: agg_type = "enum"; break;
2362 default: break;
2363 }
2364
2365 fprintf (stderr, "unknown %s %.*s found\n",
2366 agg_type, (int) hash_ptr->len, name_start);
2367 }
2368
2369 sym_index = add_local_symbol (name_start,
2370 name_end_p1,
2371 st_Block,
2372 sc_Info,
2373 (symint_t) 0,
2374 (symint_t) 0);
2375
2376 (void) add_local_symbol (name_start,
2377 name_end_p1,
2378 st_End,
2379 sc_Info,
2380 (symint_t) 0,
2381 (symint_t) 0);
2382
2383 while (f_next != (forward_t *) 0)
2384 {
2385 f_cur = f_next;
2386 f_next = f_next->next;
2387
2388 f_cur->ifd_ptr->isym = file_index;
2389 f_cur->index_ptr->rndx.index = sym_index;
2390
2391 free_forward (f_cur);
2392 }
2393
2394 return;
2395 }
2396
2397 \f
2398 /* Add a procedure to the current file's list of procedures, and record
2399 this is the current procedure. If the assembler created a PDR for
2400 this procedure, use that to initialize the current PDR. */
2401
2402 STATIC void
2403 add_procedure (func_start, func_end_p1)
2404 const char *func_start; /* 1st byte of func name */
2405 const char *func_end_p1; /* 1st byte after func name */
2406 {
2407 register PDR *new_proc_ptr;
2408 register efdr_t *file_ptr = cur_file_ptr;
2409 register varray_t *vp = &file_ptr->procs;
2410 register symint_t value = 0;
2411 register st_t proc_type = st_Proc;
2412 register shash_t *shash_ptr = hash_string (func_start,
2413 func_end_p1 - func_start,
2414 &orig_str_hash[0],
2415 (symint_t *) 0);
2416
2417 if (debug)
2418 fputc ('\n', stderr);
2419
2420 if (vp->objects_last_page == vp->objects_per_page)
2421 add_varray_page (vp);
2422
2423 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2424
2425 vp->num_allocated++;
2426
2427
2428 /* Did the assembler create this procedure? If so, get the PDR information. */
2429 cur_oproc_ptr = (PDR *) 0;
2430 if (shash_ptr != (shash_t *) 0)
2431 {
2432 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2433 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2434
2435 if (old_proc_ptr != (PDR *) 0
2436 && sym_ptr != (SYMR *) 0
2437 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2438 {
2439 cur_oproc_begin = sym_ptr;
2440 cur_oproc_end = shash_ptr->end_ptr;
2441 value = sym_ptr->value;
2442
2443 cur_oproc_ptr = old_proc_ptr;
2444 proc_type = (st_t)sym_ptr->st;
2445 *new_proc_ptr = *old_proc_ptr; /* initialize */
2446 }
2447 }
2448
2449 if (cur_oproc_ptr == (PDR *) 0)
2450 error ("Did not find a PDR block for %.*s",
2451 (int) (func_end_p1 - func_start), func_start);
2452
2453 /* Determine the start of symbols. */
2454 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2455
2456 /* Push the start of the function. */
2457 (void) add_local_symbol (func_start, func_end_p1,
2458 proc_type, sc_Text,
2459 value,
2460 (symint_t) 0);
2461 }
2462
2463 \f
2464 /* Add a new filename, and set up all of the file relative
2465 virtual arrays (strings, symbols, aux syms, etc.). Record
2466 where the current file structure lives. */
2467
2468 STATIC void
2469 add_file (file_start, file_end_p1)
2470 const char *file_start; /* first byte in string */
2471 const char *file_end_p1; /* first byte after string */
2472 {
2473 static char zero_bytes[2] = { '\0', '\0' };
2474
2475 register Ptrdiff_t len = file_end_p1 - file_start;
2476 register int first_ch = *file_start;
2477 register efdr_t *file_ptr;
2478
2479 if (debug)
2480 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2481
2482 /* See if the file has already been created. */
2483 for (file_ptr = first_file;
2484 file_ptr != (efdr_t *) 0;
2485 file_ptr = file_ptr->next_file)
2486 {
2487 if (first_ch == file_ptr->name[0]
2488 && file_ptr->name[len] == '\0'
2489 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2490 {
2491 cur_file_ptr = file_ptr;
2492 break;
2493 }
2494 }
2495
2496 /* If this is a new file, create it. */
2497 if (file_ptr == (efdr_t *) 0)
2498 {
2499 if (file_desc.objects_last_page == file_desc.objects_per_page)
2500 add_varray_page (&file_desc);
2501
2502 file_ptr = cur_file_ptr
2503 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2504 *file_ptr = init_file;
2505
2506 file_ptr->file_index = file_desc.num_allocated++;
2507
2508 /* Allocate the string hash table. */
2509 file_ptr->shash_head = (shash_t **) allocate_page ();
2510
2511 /* Make sure 0 byte in string table is null */
2512 add_string (&file_ptr->strings,
2513 &file_ptr->shash_head[0],
2514 &zero_bytes[0],
2515 &zero_bytes[0],
2516 (shash_t **) 0);
2517
2518 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2519 fatal ("Filename goes over one page boundary.");
2520
2521 /* Push the start of the filename. We assume that the filename
2522 will be stored at string offset 1. */
2523 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2524 (symint_t) 0, (symint_t) 0);
2525 file_ptr->fdr.rss = 1;
2526 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2527 file_ptr->name_len = file_end_p1 - file_start;
2528
2529 /* Update the linked list of file descriptors. */
2530 *last_file_ptr = file_ptr;
2531 last_file_ptr = &file_ptr->next_file;
2532
2533 /* Add void & int types to the file (void should be first to catch
2534 errant 0's within the index fields). */
2535 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2536 hash_yes,
2537 &cur_file_ptr->thash_head[0]);
2538
2539 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2540 hash_yes,
2541 &cur_file_ptr->thash_head[0]);
2542 }
2543 }
2544
2545 \f
2546 /* Add a stream of random bytes to a varray. */
2547
2548 STATIC void
2549 add_bytes (vp, input_ptr, nitems)
2550 varray_t *vp; /* virtual array to add too */
2551 char *input_ptr; /* start of the bytes */
2552 Size_t nitems; /* # items to move */
2553 {
2554 register Size_t move_items;
2555 register Size_t move_bytes;
2556 register char *ptr;
2557
2558 while (nitems > 0)
2559 {
2560 if (vp->objects_last_page >= vp->objects_per_page)
2561 add_varray_page (vp);
2562
2563 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2564 move_items = vp->objects_per_page - vp->objects_last_page;
2565 if (move_items > nitems)
2566 move_items = nitems;
2567
2568 move_bytes = move_items * vp->object_size;
2569 nitems -= move_items;
2570
2571 if (move_bytes >= 32)
2572 {
2573 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2574 input_ptr += move_bytes;
2575 }
2576 else
2577 {
2578 while (move_bytes-- > 0)
2579 *ptr++ = *input_ptr++;
2580 }
2581 }
2582 }
2583
2584 \f
2585 /* Convert storage class to string. */
2586
2587 STATIC const char *
2588 sc_to_string(storage_class)
2589 sc_t storage_class;
2590 {
2591 switch(storage_class)
2592 {
2593 case sc_Nil: return "Nil,";
2594 case sc_Text: return "Text,";
2595 case sc_Data: return "Data,";
2596 case sc_Bss: return "Bss,";
2597 case sc_Register: return "Register,";
2598 case sc_Abs: return "Abs,";
2599 case sc_Undefined: return "Undefined,";
2600 case sc_CdbLocal: return "CdbLocal,";
2601 case sc_Bits: return "Bits,";
2602 case sc_CdbSystem: return "CdbSystem,";
2603 case sc_RegImage: return "RegImage,";
2604 case sc_Info: return "Info,";
2605 case sc_UserStruct: return "UserStruct,";
2606 case sc_SData: return "SData,";
2607 case sc_SBss: return "SBss,";
2608 case sc_RData: return "RData,";
2609 case sc_Var: return "Var,";
2610 case sc_Common: return "Common,";
2611 case sc_SCommon: return "SCommon,";
2612 case sc_VarRegister: return "VarRegister,";
2613 case sc_Variant: return "Variant,";
2614 case sc_SUndefined: return "SUndefined,";
2615 case sc_Init: return "Init,";
2616 case sc_Max: return "Max,";
2617 }
2618
2619 return "???,";
2620 }
2621
2622 \f
2623 /* Convert symbol type to string. */
2624
2625 STATIC const char *
2626 st_to_string(symbol_type)
2627 st_t symbol_type;
2628 {
2629 switch(symbol_type)
2630 {
2631 case st_Nil: return "Nil,";
2632 case st_Global: return "Global,";
2633 case st_Static: return "Static,";
2634 case st_Param: return "Param,";
2635 case st_Local: return "Local,";
2636 case st_Label: return "Label,";
2637 case st_Proc: return "Proc,";
2638 case st_Block: return "Block,";
2639 case st_End: return "End,";
2640 case st_Member: return "Member,";
2641 case st_Typedef: return "Typedef,";
2642 case st_File: return "File,";
2643 case st_RegReloc: return "RegReloc,";
2644 case st_Forward: return "Forward,";
2645 case st_StaticProc: return "StaticProc,";
2646 case st_Constant: return "Constant,";
2647 case st_Str: return "String,";
2648 case st_Number: return "Number,";
2649 case st_Expr: return "Expr,";
2650 case st_Type: return "Type,";
2651 case st_Max: return "Max,";
2652 }
2653
2654 return "???,";
2655 }
2656
2657 \f
2658 /* Read a line from standard input, and return the start of the buffer
2659 (which is grows if the line is too big). We split lines at the
2660 semi-colon, and return each logical line independently. */
2661
2662 STATIC char *
2663 read_line __proto((void))
2664 {
2665 static int line_split_p = 0;
2666 register int string_p = 0;
2667 register int comment_p = 0;
2668 register int ch;
2669 register char *ptr;
2670
2671 if (cur_line_start == (char *) 0)
2672 { /* allocate initial page */
2673 cur_line_start = (char *) allocate_page ();
2674 cur_line_alloc = PAGE_SIZE;
2675 }
2676
2677 if (!line_split_p)
2678 line_number++;
2679
2680 line_split_p = 0;
2681 cur_line_nbytes = 0;
2682
2683 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2684 {
2685 if (++cur_line_nbytes >= cur_line_alloc-1)
2686 {
2687 register int num_pages = cur_line_alloc / PAGE_SIZE;
2688 register char *old_buffer = cur_line_start;
2689
2690 cur_line_alloc += PAGE_SIZE;
2691 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2692 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2693
2694 ptr = cur_line_start + cur_line_nbytes - 1;
2695 }
2696
2697 if (ch == '\n')
2698 {
2699 *ptr++ = '\n';
2700 *ptr = '\0';
2701 cur_line_ptr = cur_line_start;
2702 return cur_line_ptr;
2703 }
2704
2705 else if (ch == '\0')
2706 error ("Null character found in input");
2707
2708 else if (!comment_p)
2709 {
2710 if (ch == '"')
2711 string_p = !string_p;
2712
2713 else if (ch == '#')
2714 comment_p++;
2715
2716 else if (ch == ';' && !string_p)
2717 {
2718 line_split_p = 1;
2719 *ptr++ = '\n';
2720 *ptr = '\0';
2721 cur_line_ptr = cur_line_start;
2722 return cur_line_ptr;
2723 }
2724 }
2725 }
2726
2727 if (ferror (stdin))
2728 pfatal_with_name (input_name);
2729
2730 cur_line_ptr = (char *) 0;
2731 return (char *) 0;
2732 }
2733
2734 \f
2735 /* Parse #.begin directives which have a label as the first argument
2736 which gives the location of the start of the block. */
2737
2738 STATIC void
2739 parse_begin (start)
2740 const char *start; /* start of directive */
2741 {
2742 const char *end_p1; /* end of label */
2743 int ch;
2744 shash_t *hash_ptr; /* hash pointer to lookup label */
2745
2746 if (cur_file_ptr == (efdr_t *) 0)
2747 {
2748 error ("#.begin directive without a preceding .file directive");
2749 return;
2750 }
2751
2752 if (cur_proc_ptr == (PDR *) 0)
2753 {
2754 error ("#.begin directive without a preceding .ent directive");
2755 return;
2756 }
2757
2758 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2759 ;
2760
2761 hash_ptr = hash_string (start,
2762 end_p1 - start,
2763 &orig_str_hash[0],
2764 (symint_t *) 0);
2765
2766 if (hash_ptr == (shash_t *) 0)
2767 {
2768 error ("Label %.*s not found for #.begin",
2769 (int) (end_p1 - start), start);
2770 return;
2771 }
2772
2773 if (cur_oproc_begin == (SYMR *) 0)
2774 {
2775 error ("Procedure table %.*s not found for #.begin",
2776 (int) (end_p1 - start), start);
2777 return;
2778 }
2779
2780 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2781 st_Block, sc_Text,
2782 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2783 (symint_t) 0);
2784 }
2785
2786 \f
2787 /* Parse #.bend directives which have a label as the first argument
2788 which gives the location of the end of the block. */
2789
2790 STATIC void
2791 parse_bend (start)
2792 const char *start; /* start of directive */
2793 {
2794 const char *end_p1; /* end of label */
2795 int ch;
2796 shash_t *hash_ptr; /* hash pointer to lookup label */
2797
2798 if (cur_file_ptr == (efdr_t *) 0)
2799 {
2800 error ("#.begin directive without a preceding .file directive");
2801 return;
2802 }
2803
2804 if (cur_proc_ptr == (PDR *) 0)
2805 {
2806 error ("#.bend directive without a preceding .ent directive");
2807 return;
2808 }
2809
2810 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2811 ;
2812
2813 hash_ptr = hash_string (start,
2814 end_p1 - start,
2815 &orig_str_hash[0],
2816 (symint_t *) 0);
2817
2818 if (hash_ptr == (shash_t *) 0)
2819 {
2820 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2821 return;
2822 }
2823
2824 if (cur_oproc_begin == (SYMR *) 0)
2825 {
2826 error ("Procedure table %.*s not found for #.bend",
2827 (int) (end_p1 - start), start);
2828 return;
2829 }
2830
2831 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2832 st_End, sc_Text,
2833 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2834 (symint_t) 0);
2835 }
2836
2837 \f
2838 /* Parse #.def directives, which are contain standard COFF subdirectives
2839 to describe the debugging format. These subdirectives include:
2840
2841 .scl specify storage class
2842 .val specify a value
2843 .endef specify end of COFF directives
2844 .type specify the type
2845 .size specify the size of an array
2846 .dim specify an array dimension
2847 .tag specify a tag for a struct, union, or enum. */
2848
2849 STATIC void
2850 parse_def (name_start)
2851 const char *name_start; /* start of directive */
2852 {
2853 const char *dir_start; /* start of current directive*/
2854 const char *dir_end_p1; /* end+1 of current directive*/
2855 const char *arg_start; /* start of current argument */
2856 const char *arg_end_p1; /* end+1 of current argument */
2857 const char *name_end_p1; /* end+1 of label */
2858 const char *tag_start = (const char *) 0; /* start of tag name */
2859 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2860 sc_t storage_class = sc_Nil;
2861 st_t symbol_type = st_Nil;
2862 type_info_t t;
2863 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2864 int is_function = 0; /* != 0 if function */
2865 symint_t value = 0;
2866 symint_t indx = cur_file_ptr->void_type;
2867 int error_line = 0;
2868 symint_t arg_number;
2869 symint_t temp_array[ N_TQ ];
2870 int arg_was_number;
2871 int ch, i;
2872 Ptrdiff_t len;
2873
2874 static int inside_enumeration = 0; /* is this an enumeration? */
2875
2876
2877 /* Initialize the type information. */
2878 t = type_info_init;
2879
2880
2881 /* Search for the end of the name being defined. */
2882 /* Allow spaces and such in names for G++ templates, which produce stabs
2883 that look like:
2884
2885 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2886
2887 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2888 ;
2889
2890 if (ch == '\0')
2891 {
2892 error_line = __LINE__;
2893 saber_stop ();
2894 goto bomb_out;
2895 }
2896
2897 /* Parse the remaining subdirectives now. */
2898 dir_start = name_end_p1+1;
2899 for (;;)
2900 {
2901 while ((ch = *dir_start) == ' ' || ch == '\t')
2902 ++dir_start;
2903
2904 if (ch != '.')
2905 {
2906 error_line = __LINE__;
2907 saber_stop ();
2908 goto bomb_out;
2909 }
2910
2911 /* Are we done? */
2912 if (dir_start[1] == 'e'
2913 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2914 break;
2915
2916 /* Pick up the subdirective now */
2917 for (dir_end_p1 = dir_start+1;
2918 (ch = *dir_end_p1) != ' ' && ch != '\t';
2919 dir_end_p1++)
2920 {
2921 if (ch == '\0' || ISSPACE (ch))
2922 {
2923 error_line = __LINE__;
2924 saber_stop ();
2925 goto bomb_out;
2926 }
2927 }
2928
2929 /* Pick up the subdirective argument now. */
2930 arg_was_number = arg_number = 0;
2931 arg_end_p1 = (const char *) 0;
2932 arg_start = dir_end_p1+1;
2933 ch = *arg_start;
2934 while (ch == ' ' || ch == '\t')
2935 ch = *++arg_start;
2936
2937 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2938 {
2939 int ch2;
2940 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2941 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2942 arg_was_number++;
2943 }
2944
2945 else if (ch == '\0' || ISSPACE (ch))
2946 {
2947 error_line = __LINE__;
2948 saber_stop ();
2949 goto bomb_out;
2950 }
2951
2952 if (!arg_was_number)
2953 {
2954 /* Allow spaces and such in names for G++ templates. */
2955 for (arg_end_p1 = arg_start+1;
2956 (ch = *arg_end_p1) != ';' && ch != '\0';
2957 arg_end_p1++)
2958 ;
2959
2960 if (ch == '\0')
2961 {
2962 error_line = __LINE__;
2963 saber_stop ();
2964 goto bomb_out;
2965 }
2966 }
2967
2968 /* Classify the directives now. */
2969 len = dir_end_p1 - dir_start;
2970 switch (dir_start[1])
2971 {
2972 default:
2973 error_line = __LINE__;
2974 saber_stop ();
2975 goto bomb_out;
2976
2977 case 'd':
2978 if (len == sizeof (".dim")-1
2979 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2980 && arg_was_number)
2981 {
2982 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2983
2984 *t_ptr = arg_number;
2985 while (*arg_end_p1 == ',' && arg_was_number)
2986 {
2987 arg_start = arg_end_p1+1;
2988 ch = *arg_start;
2989 while (ch == ' ' || ch == '\t')
2990 ch = *++arg_start;
2991
2992 arg_was_number = 0;
2993 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2994 {
2995 int ch2;
2996 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2997 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2998 arg_was_number++;
2999
3000 if (t_ptr == &temp_array[0])
3001 {
3002 error_line = __LINE__;
3003 saber_stop ();
3004 goto bomb_out;
3005 }
3006
3007 *--t_ptr = arg_number;
3008 }
3009 }
3010
3011 /* Reverse order of dimensions. */
3012 while (t_ptr <= &temp_array[ N_TQ-1 ])
3013 {
3014 if (t.num_dims >= N_TQ-1)
3015 {
3016 error_line = __LINE__;
3017 saber_stop ();
3018 goto bomb_out;
3019 }
3020
3021 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3022 }
3023 break;
3024 }
3025 else
3026 {
3027 error_line = __LINE__;
3028 saber_stop ();
3029 goto bomb_out;
3030 }
3031
3032
3033 case 's':
3034 if (len == sizeof (".scl")-1
3035 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3036 && arg_was_number
3037 && arg_number < ((symint_t) C_MAX))
3038 {
3039 /* If the symbol is a static or external, we have
3040 already gotten the appropriate type and class, so
3041 make sure we don't override those values. This is
3042 needed because there are some type and classes that
3043 are not in COFF, such as short data, etc. */
3044 if (symbol_type == st_Nil)
3045 {
3046 symbol_type = map_coff_sym_type[arg_number];
3047 storage_class = map_coff_storage [arg_number];
3048 }
3049 break;
3050 }
3051
3052 else if (len == sizeof (".size")-1
3053 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3054 && arg_was_number)
3055 {
3056 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3057
3058 *t_ptr = arg_number;
3059 while (*arg_end_p1 == ',' && arg_was_number)
3060 {
3061 arg_start = arg_end_p1+1;
3062 ch = *arg_start;
3063 while (ch == ' ' || ch == '\t')
3064 ch = *++arg_start;
3065
3066 arg_was_number = 0;
3067 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3068 {
3069 int ch2;
3070 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3071 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3072 arg_was_number++;
3073
3074 if (t_ptr == &temp_array[0])
3075 {
3076 error_line = __LINE__;
3077 saber_stop ();
3078 goto bomb_out;
3079 }
3080
3081 *--t_ptr = arg_number;
3082 }
3083 }
3084
3085 /* Reverse order of sizes. */
3086 while (t_ptr <= &temp_array[ N_TQ-1 ])
3087 {
3088 if (t.num_sizes >= N_TQ-1)
3089 {
3090 error_line = __LINE__;
3091 saber_stop ();
3092 goto bomb_out;
3093 }
3094
3095 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3096 }
3097 break;
3098 }
3099
3100 else
3101 {
3102 error_line = __LINE__;
3103 saber_stop ();
3104 goto bomb_out;
3105 }
3106
3107
3108 case 't':
3109 if (len == sizeof (".type")-1
3110 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3111 && arg_was_number)
3112 {
3113 tq_t *tq_ptr = &t.type_qualifiers[0];
3114
3115 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3116 t.basic_type = map_coff_types [(int)t.orig_type];
3117 for (i = N_TQ-1; i >= 0; i--)
3118 {
3119 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3120 & N_TMASK);
3121
3122 if (dt != (int)DT_NON)
3123 *tq_ptr++ = map_coff_derived_type [dt];
3124 }
3125
3126 /* If this is a function, ignore it, so that we don't get
3127 two entries (one from the .ent, and one for the .def
3128 that precedes it). Save the type information so that
3129 the end block can properly add it after the begin block
3130 index. For MIPS knows what reason, we must strip off
3131 the function type at this point. */
3132 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3133 {
3134 is_function = 1;
3135 tq_ptr[-1] = tq_Nil;
3136 }
3137
3138 break;
3139 }
3140
3141 else if (len == sizeof (".tag")-1
3142 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3143 {
3144 tag_start = arg_start;
3145 tag_end_p1 = arg_end_p1;
3146 break;
3147 }
3148
3149 else
3150 {
3151 error_line = __LINE__;
3152 saber_stop ();
3153 goto bomb_out;
3154 }
3155
3156
3157 case 'v':
3158 if (len == sizeof (".val")-1
3159 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3160 {
3161 if (arg_was_number)
3162 value = arg_number;
3163
3164 /* If the value is not an integer value, it must be the
3165 name of a static or global item. Look up the name in
3166 the original symbol table to pick up the storage
3167 class, symbol type, etc. */
3168 else
3169 {
3170 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3171 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3172
3173 ext_hash_ptr = hash_string (arg_start,
3174 arg_end_p1 - arg_start,
3175 &ext_str_hash[0],
3176 (symint_t *) 0);
3177
3178 if (ext_hash_ptr != (shash_t *) 0
3179 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3180 eptr = ext_hash_ptr->esym_ptr;
3181
3182 orig_hash_ptr = hash_string (arg_start,
3183 arg_end_p1 - arg_start,
3184 &orig_str_hash[0],
3185 (symint_t *) 0);
3186
3187 if ((orig_hash_ptr == (shash_t *) 0
3188 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3189 && eptr == (EXTR *) 0)
3190 {
3191 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3192 (int) (arg_end_p1 - arg_start),
3193 arg_start);
3194 value = 0;
3195 }
3196 else
3197 {
3198 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3199 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3200 ? orig_hash_ptr->sym_ptr
3201 : &eptr->asym;
3202
3203 symbol_type = (st_t) ptr->st;
3204 storage_class = (sc_t) ptr->sc;
3205 value = ptr->value;
3206 }
3207 }
3208 break;
3209 }
3210 else
3211 {
3212 error_line = __LINE__;
3213 saber_stop ();
3214 goto bomb_out;
3215 }
3216 }
3217
3218 /* Set up to find next directive. */
3219 dir_start = arg_end_p1 + 1;
3220 }
3221
3222
3223 if (storage_class == sc_Bits)
3224 {
3225 t.bitfield = 1;
3226 t.extra_sizes = 1;
3227 }
3228 else
3229 t.extra_sizes = 0;
3230
3231 if (t.num_dims > 0)
3232 {
3233 int num_real_sizes = t.num_sizes - t.extra_sizes;
3234 int diff = t.num_dims - num_real_sizes;
3235 int i = t.num_dims - 1;
3236 int j;
3237
3238 if (num_real_sizes != 1 || diff < 0)
3239 {
3240 error_line = __LINE__;
3241 saber_stop ();
3242 goto bomb_out;
3243 }
3244
3245 /* If this is an array, make sure the same number of dimensions
3246 and sizes were passed, creating extra sizes for multiply
3247 dimensioned arrays if not passed. */
3248
3249 if (diff)
3250 {
3251 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3252 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3253
3254 t.num_sizes = i + 1;
3255 for ( i--; i >= 0; i-- )
3256 {
3257 if (t.dimensions[ i+1 ])
3258 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3259 else
3260 t.sizes[ i ] = t.sizes[ i+1 ];
3261 }
3262 }
3263 }
3264
3265 /* Except for enumeration members & begin/ending of scopes, put the
3266 type word in the aux. symbol table. */
3267
3268 if (symbol_type == st_Block || symbol_type == st_End)
3269 indx = 0;
3270
3271 else if (inside_enumeration)
3272 indx = cur_file_ptr->void_type;
3273
3274 else
3275 {
3276 if (t.basic_type == bt_Struct
3277 || t.basic_type == bt_Union
3278 || t.basic_type == bt_Enum)
3279 {
3280 if (tag_start == (char *) 0)
3281 {
3282 error ("No tag specified for %.*s",
3283 (int) (name_end_p1 - name_start),
3284 name_start);
3285 return;
3286 }
3287
3288 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3289 t.basic_type);
3290 }
3291
3292 if (is_function)
3293 {
3294 last_func_type_info = t;
3295 last_func_eptr = eptr;
3296 return;
3297 }
3298
3299 indx = add_aux_sym_tir (&t,
3300 hash_yes,
3301 &cur_file_ptr->thash_head[0]);
3302 }
3303
3304
3305 /* If this is an external or static symbol, update the appropriate
3306 external symbol. */
3307
3308 if (eptr != (EXTR *) 0
3309 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3310 {
3311 eptr->ifd = cur_file_ptr->file_index;
3312 eptr->asym.index = indx;
3313 }
3314
3315
3316 /* Do any last minute adjustments that are necessary. */
3317 switch (symbol_type)
3318 {
3319 default:
3320 break;
3321
3322
3323 /* For the beginning of structs, unions, and enumerations, the
3324 size info needs to be passed in the value field. */
3325
3326 case st_Block:
3327 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3328 {
3329 error_line = __LINE__;
3330 saber_stop ();
3331 goto bomb_out;
3332 }
3333
3334 else
3335 value = t.sizes[0];
3336
3337 inside_enumeration = (t.orig_type == T_ENUM);
3338 break;
3339
3340
3341 /* For the end of structs, unions, and enumerations, omit the
3342 name which is always ".eos". This needs to be done last, so
3343 that any error reporting above gives the correct name. */
3344
3345 case st_End:
3346 name_start = name_end_p1 = (const char *) 0;
3347 value = inside_enumeration = 0;
3348 break;
3349
3350
3351 /* Members of structures and unions that aren't bitfields, need
3352 to adjust the value from a byte offset to a bit offset.
3353 Members of enumerations do not have the value adjusted, and
3354 can be distinguished by indx == indexNil. For enumerations,
3355 update the maximum enumeration value. */
3356
3357 case st_Member:
3358 if (!t.bitfield && !inside_enumeration)
3359 value *= 8;
3360
3361 break;
3362 }
3363
3364
3365 /* Add the symbol, except for global symbols outside of functions,
3366 for which the external symbol table is fine enough. */
3367
3368 if (eptr == (EXTR *) 0
3369 || eptr->asym.st == (int)st_Nil
3370 || cur_proc_ptr != (PDR *) 0)
3371 {
3372 symint_t isym = add_local_symbol (name_start, name_end_p1,
3373 symbol_type, storage_class,
3374 value,
3375 indx);
3376
3377 /* deal with struct, union, and enum tags. */
3378 if (symbol_type == st_Block)
3379 {
3380 /* Create or update the tag information. */
3381 tag_t *tag_ptr = get_tag (name_start,
3382 name_end_p1,
3383 isym,
3384 t.basic_type);
3385
3386 /* If there are any forward references, fill in the appropriate
3387 file and symbol indexes. */
3388
3389 symint_t file_index = cur_file_ptr->file_index;
3390 forward_t *f_next = tag_ptr->forward_ref;
3391 forward_t *f_cur;
3392
3393 while (f_next != (forward_t *) 0)
3394 {
3395 f_cur = f_next;
3396 f_next = f_next->next;
3397
3398 f_cur->ifd_ptr->isym = file_index;
3399 f_cur->index_ptr->rndx.index = isym;
3400
3401 free_forward (f_cur);
3402 }
3403
3404 tag_ptr->forward_ref = (forward_t *) 0;
3405 }
3406 }
3407
3408 /* Normal return */
3409 return;
3410
3411 /* Error return, issue message. */
3412 bomb_out:
3413 if (error_line)
3414 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3415 else
3416 error ("compiler error, badly formed #.def");
3417
3418 return;
3419 }
3420
3421 \f
3422 /* Parse .end directives. */
3423
3424 STATIC void
3425 parse_end (start)
3426 const char *start; /* start of directive */
3427 {
3428 register const char *start_func, *end_func_p1;
3429 register int ch;
3430 register symint_t value;
3431 register FDR *orig_fdr;
3432
3433 if (cur_file_ptr == (efdr_t *) 0)
3434 {
3435 error (".end directive without a preceding .file directive");
3436 return;
3437 }
3438
3439 if (cur_proc_ptr == (PDR *) 0)
3440 {
3441 error (".end directive without a preceding .ent directive");
3442 return;
3443 }
3444
3445 /* Get the function name, skipping whitespace. */
3446 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3447 ;
3448
3449 ch = *start_func;
3450 if (!IS_ASM_IDENT (ch))
3451 {
3452 error (".end directive has no name");
3453 return;
3454 }
3455
3456 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3457 ;
3458
3459
3460 /* Get the value field for creating the end from the original object
3461 file (which we find by locating the procedure start, and using the
3462 pointer to the end+1 block and backing up. The index points to a
3463 two word aux. symbol, whose first word is the index of the end
3464 symbol, and the second word is the type of the function return
3465 value. */
3466
3467 orig_fdr = cur_file_ptr->orig_fdr;
3468 value = 0;
3469 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3470 value = cur_oproc_end->value;
3471
3472 else
3473 error ("Cannot find .end block for %.*s",
3474 (int) (end_func_p1 - start_func), start_func);
3475
3476 (void) add_local_symbol (start_func, end_func_p1,
3477 st_End, sc_Text,
3478 value,
3479 (symint_t) 0);
3480
3481 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3482 }
3483
3484 \f
3485 /* Parse .ent directives. */
3486
3487 STATIC void
3488 parse_ent (start)
3489 const char *start; /* start of directive */
3490 {
3491 register const char *start_func, *end_func_p1;
3492 register int ch;
3493
3494 if (cur_file_ptr == (efdr_t *) 0)
3495 {
3496 error (".ent directive without a preceding .file directive");
3497 return;
3498 }
3499
3500 if (cur_proc_ptr != (PDR *) 0)
3501 {
3502 error ("second .ent directive found before .end directive");
3503 return;
3504 }
3505
3506 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3507 ;
3508
3509 ch = *start_func;
3510 if (!IS_ASM_IDENT (ch))
3511 {
3512 error (".ent directive has no name");
3513 return;
3514 }
3515
3516 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3517 ;
3518
3519 (void) add_procedure (start_func, end_func_p1);
3520 }
3521
3522 \f
3523 /* Parse .file directives. */
3524
3525 STATIC void
3526 parse_file (start)
3527 const char *start; /* start of directive */
3528 {
3529 char *p;
3530 register char *start_name, *end_name_p1;
3531
3532 (void) strtol (start, &p, 0);
3533 if (start == p
3534 || (start_name = local_index (p, '"')) == (char *) 0
3535 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3536 {
3537 error ("Invalid .file directive");
3538 return;
3539 }
3540
3541 if (cur_proc_ptr != (PDR *) 0)
3542 {
3543 error ("No way to handle .file within .ent/.end section");
3544 return;
3545 }
3546
3547 add_file (start_name, end_name_p1);
3548 }
3549
3550 \f
3551 /* Make sure the @stabs symbol is emitted. */
3552
3553 static void
3554 mark_stabs (start)
3555 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3556 {
3557 if (!stabs_seen)
3558 {
3559 /* Add a dummy @stabs symbol. */
3560 stabs_seen = 1;
3561 (void) add_local_symbol (stabs_symbol,
3562 stabs_symbol + sizeof (stabs_symbol),
3563 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3564
3565 }
3566 }
3567
3568 \f
3569 /* Parse .stabs directives.
3570
3571 .stabs directives have five fields:
3572 "string" a string, encoding the type information.
3573 code a numeric code, defined in <stab.h>
3574 0 a zero
3575 0 a zero or line number
3576 value a numeric value or an address.
3577
3578 If the value is relocatable, we transform this into:
3579 iss points as an index into string space
3580 value value from lookup of the name
3581 st st from lookup of the name
3582 sc sc from lookup of the name
3583 index code|CODE_MASK
3584
3585 If the value is not relocatable, we transform this into:
3586 iss points as an index into string space
3587 value value
3588 st st_Nil
3589 sc sc_Nil
3590 index code|CODE_MASK
3591
3592 .stabn directives have four fields (string is null):
3593 code a numeric code, defined in <stab.h>
3594 0 a zero
3595 0 a zero or a line number
3596 value a numeric value or an address. */
3597
3598 STATIC void
3599 parse_stabs_common (string_start, string_end, rest)
3600 const char *string_start; /* start of string or NULL */
3601 const char *string_end; /* end+1 of string or NULL */
3602 const char *rest; /* rest of the directive. */
3603 {
3604 efdr_t *save_file_ptr = cur_file_ptr;
3605 symint_t code;
3606 symint_t value;
3607 char *p;
3608 st_t st;
3609 sc_t sc;
3610 int ch;
3611
3612 if (stabs_seen == 0)
3613 mark_stabs ("");
3614
3615 /* Read code from stabs. */
3616 if (!ISDIGIT (*rest))
3617 {
3618 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3619 return;
3620 }
3621
3622 code = strtol (rest, &p, 0);
3623
3624 /* Line number stabs are handled differently, since they have two values,
3625 the line number and the address of the label. We use the index field
3626 (aka code) to hold the line number, and the value field to hold the
3627 address. The symbol type is st_Label, which should be different from
3628 the other stabs, so that gdb can recognize it. */
3629
3630 if (code == (int)N_SLINE)
3631 {
3632 SYMR *sym_ptr, dummy_symr;
3633 shash_t *shash_ptr;
3634
3635 /* Skip ,0, */
3636 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3637 {
3638 error ("Invalid line number .stabs/.stabn directive");
3639 return;
3640 }
3641
3642 code = strtol (p+3, &p, 0);
3643 ch = *++p;
3644 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3645 {
3646 error ("Invalid line number .stabs/.stabn directive");
3647 return;
3648 }
3649
3650 dummy_symr.index = code;
3651 if (dummy_symr.index != code)
3652 {
3653 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3654 code);
3655
3656 return;
3657 }
3658
3659 shash_ptr = hash_string (p,
3660 strlen (p) - 1,
3661 &orig_str_hash[0],
3662 (symint_t *) 0);
3663
3664 if (shash_ptr == (shash_t *) 0
3665 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3666 {
3667 error ("Invalid .stabs/.stabn directive, value not found");
3668 return;
3669 }
3670
3671 if ((st_t) sym_ptr->st != st_Label)
3672 {
3673 error ("Invalid line number .stabs/.stabn directive");
3674 return;
3675 }
3676
3677 st = st_Label;
3678 sc = (sc_t) sym_ptr->sc;
3679 value = sym_ptr->value;
3680 }
3681 else
3682 {
3683 /* Skip ,<num>,<num>, */
3684 if (*p++ != ',')
3685 goto failure;
3686 for (; ISDIGIT (*p); p++)
3687 ;
3688 if (*p++ != ',')
3689 goto failure;
3690 for (; ISDIGIT (*p); p++)
3691 ;
3692 if (*p++ != ',')
3693 goto failure;
3694 ch = *p;
3695 if (!IS_ASM_IDENT (ch) && ch != '-')
3696 {
3697 failure:
3698 error ("Invalid .stabs/.stabn directive, bad character");
3699 return;
3700 }
3701
3702 if (ISDIGIT (ch) || ch == '-')
3703 {
3704 st = st_Nil;
3705 sc = sc_Nil;
3706 value = strtol (p, &p, 0);
3707 if (*p != '\n')
3708 {
3709 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3710 return;
3711 }
3712 }
3713 else if (!IS_ASM_IDENT (ch))
3714 {
3715 error ("Invalid .stabs/.stabn directive, bad character");
3716 return;
3717 }
3718 else
3719 {
3720 SYMR *sym_ptr;
3721 shash_t *shash_ptr;
3722 const char *start, *end_p1;
3723
3724 start = p;
3725 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3726 {
3727 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3728 end_p1 = start + strlen(start) - 1;
3729 }
3730
3731 shash_ptr = hash_string (start,
3732 end_p1 - start,
3733 &orig_str_hash[0],
3734 (symint_t *) 0);
3735
3736 if (shash_ptr == (shash_t *) 0
3737 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3738 {
3739 shash_ptr = hash_string (start,
3740 end_p1 - start,
3741 &ext_str_hash[0],
3742 (symint_t *) 0);
3743
3744 if (shash_ptr == (shash_t *) 0
3745 || shash_ptr->esym_ptr == (EXTR *) 0)
3746 {
3747 error ("Invalid .stabs/.stabn directive, value not found");
3748 return;
3749 }
3750 else
3751 sym_ptr = &(shash_ptr->esym_ptr->asym);
3752 }
3753
3754 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3755 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3756 {
3757 sc = scNil;
3758 st = stNil;
3759 }
3760 else
3761 {
3762 sc = (sc_t) sym_ptr->sc;
3763 st = (st_t) sym_ptr->st;
3764 }
3765 value = sym_ptr->value;
3766
3767 ch = *end_p1++;
3768 if (ch != '\n')
3769 {
3770 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3771 || ((ch != '+') && (ch != '-')))
3772 {
3773 error ("Invalid .stabs/.stabn directive, badly formed value");
3774 return;
3775 }
3776 if (ch == '+')
3777 value += strtol (end_p1, &p, 0);
3778 else if (ch == '-')
3779 value -= strtol (end_p1, &p, 0);
3780
3781 if (*p != '\n')
3782 {
3783 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3784 return;
3785 }
3786 }
3787 }
3788 code = MIPS_MARK_STAB(code);
3789 }
3790
3791 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3792 /* Restore normal file type. */
3793 cur_file_ptr = save_file_ptr;
3794 }
3795
3796
3797 STATIC void
3798 parse_stabs (start)
3799 const char *start; /* start of directive */
3800 {
3801 const char *end = local_index (start+1, '"');
3802
3803 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3804 {
3805 error ("Invalid .stabs directive, no string");
3806 return;
3807 }
3808
3809 parse_stabs_common (start+1, end, end+2);
3810 }
3811
3812
3813 STATIC void
3814 parse_stabn (start)
3815 const char *start; /* start of directive */
3816 {
3817 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3818 }
3819
3820 \f
3821 /* Parse the input file, and write the lines to the output file
3822 if needed. */
3823
3824 STATIC void
3825 parse_input __proto((void))
3826 {
3827 register char *p;
3828 register Size_t i;
3829 register thead_t *ptag_head;
3830 register tag_t *ptag;
3831 register tag_t *ptag_next;
3832
3833 if (debug)
3834 fprintf (stderr, "\tinput\n");
3835
3836 /* Add a dummy scope block around the entire compilation unit for
3837 structures defined outside of blocks. */
3838 ptag_head = allocate_thead ();
3839 ptag_head->first_tag = 0;
3840 ptag_head->prev = cur_tag_head;
3841 cur_tag_head = ptag_head;
3842
3843 while ((p = read_line ()) != (char *) 0)
3844 {
3845 /* Skip leading blanks */
3846 while (ISSPACE ((unsigned char)*p))
3847 p++;
3848
3849 /* See if it's a directive we handle. If so, dispatch handler. */
3850 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3851 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3852 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3853 {
3854 p += pseudo_ops[i].len; /* skip to first argument */
3855 while (ISSPACE ((unsigned char)*p))
3856 p++;
3857
3858 (*pseudo_ops[i].func)( p );
3859 break;
3860 }
3861 }
3862
3863 /* Process any tags at global level. */
3864 ptag_head = cur_tag_head;
3865 cur_tag_head = ptag_head->prev;
3866
3867 for (ptag = ptag_head->first_tag;
3868 ptag != (tag_t *) 0;
3869 ptag = ptag_next)
3870 {
3871 if (ptag->forward_ref != (forward_t *) 0)
3872 add_unknown_tag (ptag);
3873
3874 ptag_next = ptag->same_block;
3875 ptag->hash_ptr->tag_ptr = ptag->same_name;
3876 free_tag (ptag);
3877 }
3878
3879 free_thead (ptag_head);
3880
3881 }
3882
3883 \f
3884 /* Update the global headers with the final offsets in preparation
3885 to write out the .T file. */
3886
3887 STATIC void
3888 update_headers __proto((void))
3889 {
3890 register symint_t i;
3891 register efdr_t *file_ptr;
3892
3893 /* Set up the symbolic header. */
3894 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3895 symbolic_header.magic = orig_sym_hdr.magic;
3896 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3897
3898 /* Set up global counts. */
3899 symbolic_header.issExtMax = ext_strings.num_allocated;
3900 symbolic_header.idnMax = dense_num.num_allocated;
3901 symbolic_header.ifdMax = file_desc.num_allocated;
3902 symbolic_header.iextMax = ext_symbols.num_allocated;
3903 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3904 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3905 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3906 symbolic_header.crfd = orig_sym_hdr.crfd;
3907
3908
3909 /* Loop through each file, figuring out how many local syms,
3910 line numbers, etc. there are. Also, put out end symbol
3911 for the filename. */
3912
3913 for (file_ptr = first_file;
3914 file_ptr != (efdr_t *) 0;
3915 file_ptr = file_ptr->next_file)
3916 {
3917 register SYMR *sym_start;
3918 register SYMR *sym;
3919 register SYMR *sym_end_p1;
3920 register FDR *fd_ptr = file_ptr->orig_fdr;
3921
3922 cur_file_ptr = file_ptr;
3923
3924 /* Copy st_Static symbols from the original local symbol table if
3925 they did not get added to the new local symbol table.
3926 This happens with stabs-in-ecoff or if the source file is
3927 compiled without debugging. */
3928 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3929 sym_end_p1 = sym_start + fd_ptr->csym;
3930 for (sym = sym_start; sym < sym_end_p1; sym++)
3931 {
3932 if ((st_t)sym->st == st_Static)
3933 {
3934 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3935 register Size_t len = strlen (str);
3936 register shash_t *hash_ptr;
3937
3938 /* Ignore internal labels. */
3939 if (str[0] == '$' && str[1] == 'L')
3940 continue;
3941 hash_ptr = hash_string (str,
3942 (Ptrdiff_t)len,
3943 &file_ptr->shash_head[0],
3944 (symint_t *) 0);
3945 if (hash_ptr == (shash_t *) 0)
3946 {
3947 (void) add_local_symbol (str, str + len,
3948 (st_t)sym->st, (sc_t)sym->sc,
3949 (symint_t)sym->value,
3950 (symint_t)indexNil);
3951 }
3952 }
3953 }
3954 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3955 st_End, sc_Text,
3956 (symint_t) 0,
3957 (symint_t) 0);
3958
3959 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3960 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3961 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3962
3963 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3964 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3965 symbolic_header.isymMax += file_ptr->fdr.csym;
3966
3967 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3968 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3969 symbolic_header.iauxMax += file_ptr->fdr.caux;
3970
3971 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3972 file_ptr->fdr.issBase = symbolic_header.issMax;
3973 symbolic_header.issMax += file_ptr->fdr.cbSs;
3974 }
3975
3976 #ifndef ALIGN_SYMTABLE_OFFSET
3977 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3978 #endif
3979
3980 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3981 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3982 if (i > 0)
3983 {
3984 symbolic_header.cbLineOffset = file_offset;
3985 file_offset += i;
3986 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3987 }
3988
3989 i = symbolic_header.ioptMax; /* optimization symbols */
3990 if (((long) i) > 0)
3991 {
3992 symbolic_header.cbOptOffset = file_offset;
3993 file_offset += i * sizeof (OPTR);
3994 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3995 }
3996
3997 i = symbolic_header.idnMax; /* dense numbers */
3998 if (i > 0)
3999 {
4000 symbolic_header.cbDnOffset = file_offset;
4001 file_offset += i * sizeof (DNR);
4002 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4003 }
4004
4005 i = symbolic_header.ipdMax; /* procedure tables */
4006 if (i > 0)
4007 {
4008 symbolic_header.cbPdOffset = file_offset;
4009 file_offset += i * sizeof (PDR);
4010 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4011 }
4012
4013 i = symbolic_header.isymMax; /* local symbols */
4014 if (i > 0)
4015 {
4016 symbolic_header.cbSymOffset = file_offset;
4017 file_offset += i * sizeof (SYMR);
4018 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4019 }
4020
4021 i = symbolic_header.iauxMax; /* aux syms. */
4022 if (i > 0)
4023 {
4024 symbolic_header.cbAuxOffset = file_offset;
4025 file_offset += i * sizeof (TIR);
4026 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4027 }
4028
4029 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4030 if (i > 0)
4031 {
4032 symbolic_header.cbSsOffset = file_offset;
4033 file_offset += i;
4034 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4035 }
4036
4037 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4038 if (i > 0)
4039 {
4040 symbolic_header.cbSsExtOffset = file_offset;
4041 file_offset += i;
4042 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4043 }
4044
4045 i = symbolic_header.ifdMax; /* file tables */
4046 if (i > 0)
4047 {
4048 symbolic_header.cbFdOffset = file_offset;
4049 file_offset += i * sizeof (FDR);
4050 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4051 }
4052
4053 i = symbolic_header.crfd; /* relative file descriptors */
4054 if (i > 0)
4055 {
4056 symbolic_header.cbRfdOffset = file_offset;
4057 file_offset += i * sizeof (symint_t);
4058 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4059 }
4060
4061 i = symbolic_header.iextMax; /* external symbols */
4062 if (i > 0)
4063 {
4064 symbolic_header.cbExtOffset = file_offset;
4065 file_offset += i * sizeof (EXTR);
4066 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4067 }
4068 }
4069
4070 \f
4071 /* Write out a varray at a given location. */
4072
4073 STATIC void
4074 write_varray (vp, offset, str)
4075 varray_t *vp; /* virtual array */
4076 off_t offset; /* offset to write varray to */
4077 const char *str; /* string to print out when tracing */
4078 {
4079 int num_write, sys_write;
4080 vlinks_t *ptr;
4081
4082 if (vp->num_allocated == 0)
4083 return;
4084
4085 if (debug)
4086 {
4087 fputs ("\twarray\tvp = ", stderr);
4088 fprintf (stderr, HOST_PTR_PRINTF, vp);
4089 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4090 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4091 }
4092
4093 if (file_offset != offset
4094 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4095 pfatal_with_name (object_name);
4096
4097 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4098 {
4099 num_write = (ptr->next == (vlinks_t *) 0)
4100 ? vp->objects_last_page * vp->object_size
4101 : vp->objects_per_page * vp->object_size;
4102
4103 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4104 if (sys_write <= 0)
4105 pfatal_with_name (object_name);
4106
4107 else if (sys_write != num_write)
4108 fatal ("Wrote %d bytes to %s, system returned %d",
4109 num_write,
4110 object_name,
4111 sys_write);
4112
4113 file_offset += num_write;
4114 }
4115 }
4116
4117 \f
4118 /* Write out the symbol table in the object file. */
4119
4120 STATIC void
4121 write_object __proto((void))
4122 {
4123 int sys_write;
4124 efdr_t *file_ptr;
4125 off_t offset;
4126
4127 if (debug)
4128 {
4129 fputs ("\n\twrite\tvp = ", stderr);
4130 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4131 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4132 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4133 }
4134
4135 sys_write = fwrite ((PTR_T) &symbolic_header,
4136 1,
4137 sizeof (symbolic_header),
4138 object_stream);
4139
4140 if (sys_write < 0)
4141 pfatal_with_name (object_name);
4142
4143 else if (sys_write != sizeof (symbolic_header))
4144 fatal ("Wrote %d bytes to %s, system returned %d",
4145 (int) sizeof (symbolic_header),
4146 object_name,
4147 sys_write);
4148
4149
4150 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4151
4152 if (symbolic_header.cbLine > 0) /* line numbers */
4153 {
4154 long sys_write;
4155
4156 if (file_offset != symbolic_header.cbLineOffset
4157 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4158 pfatal_with_name (object_name);
4159
4160 if (debug)
4161 {
4162 fputs ("\twrite\tvp = ", stderr);
4163 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4164 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4165 (long) symbolic_header.cbLineOffset,
4166 (long) symbolic_header.cbLine, "Line numbers");
4167 }
4168
4169 sys_write = fwrite ((PTR_T) orig_linenum,
4170 1,
4171 symbolic_header.cbLine,
4172 object_stream);
4173
4174 if (sys_write <= 0)
4175 pfatal_with_name (object_name);
4176
4177 else if (sys_write != symbolic_header.cbLine)
4178 fatal ("Wrote %ld bytes to %s, system returned %ld",
4179 (long) symbolic_header.cbLine,
4180 object_name,
4181 sys_write);
4182
4183 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4184 }
4185
4186 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4187 {
4188 long sys_write;
4189 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4190
4191 if (file_offset != symbolic_header.cbOptOffset
4192 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4193 pfatal_with_name (object_name);
4194
4195 if (debug)
4196 {
4197 fputs ("\twrite\tvp = ", stderr);
4198 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4199 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4200 (long) symbolic_header.cbOptOffset,
4201 num_write, "Optimizer symbols");
4202 }
4203
4204 sys_write = fwrite ((PTR_T) orig_opt_syms,
4205 1,
4206 num_write,
4207 object_stream);
4208
4209 if (sys_write <= 0)
4210 pfatal_with_name (object_name);
4211
4212 else if (sys_write != num_write)
4213 fatal ("Wrote %ld bytes to %s, system returned %ld",
4214 num_write,
4215 object_name,
4216 sys_write);
4217
4218 file_offset = symbolic_header.cbOptOffset + num_write;
4219 }
4220
4221 if (symbolic_header.idnMax > 0) /* dense numbers */
4222 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4223
4224 if (symbolic_header.ipdMax > 0) /* procedure tables */
4225 {
4226 offset = symbolic_header.cbPdOffset;
4227 for (file_ptr = first_file;
4228 file_ptr != (efdr_t *) 0;
4229 file_ptr = file_ptr->next_file)
4230 {
4231 write_varray (&file_ptr->procs, offset, "Procedure tables");
4232 offset = file_offset;
4233 }
4234 }
4235
4236 if (symbolic_header.isymMax > 0) /* local symbols */
4237 {
4238 offset = symbolic_header.cbSymOffset;
4239 for (file_ptr = first_file;
4240 file_ptr != (efdr_t *) 0;
4241 file_ptr = file_ptr->next_file)
4242 {
4243 write_varray (&file_ptr->symbols, offset, "Local symbols");
4244 offset = file_offset;
4245 }
4246 }
4247
4248 if (symbolic_header.iauxMax > 0) /* aux symbols */
4249 {
4250 offset = symbolic_header.cbAuxOffset;
4251 for (file_ptr = first_file;
4252 file_ptr != (efdr_t *) 0;
4253 file_ptr = file_ptr->next_file)
4254 {
4255 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4256 offset = file_offset;
4257 }
4258 }
4259
4260 if (symbolic_header.issMax > 0) /* local strings */
4261 {
4262 offset = symbolic_header.cbSsOffset;
4263 for (file_ptr = first_file;
4264 file_ptr != (efdr_t *) 0;
4265 file_ptr = file_ptr->next_file)
4266 {
4267 write_varray (&file_ptr->strings, offset, "Local strings");
4268 offset = file_offset;
4269 }
4270 }
4271
4272 if (symbolic_header.issExtMax > 0) /* external strings */
4273 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4274
4275 if (symbolic_header.ifdMax > 0) /* file tables */
4276 {
4277 offset = symbolic_header.cbFdOffset;
4278 if (file_offset != offset
4279 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4280 pfatal_with_name (object_name);
4281
4282 file_offset = offset;
4283 for (file_ptr = first_file;
4284 file_ptr != (efdr_t *) 0;
4285 file_ptr = file_ptr->next_file)
4286 {
4287 if (debug)
4288 {
4289 fputs ("\twrite\tvp = ", stderr);
4290 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4291 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4292 file_offset, (unsigned long) sizeof (FDR),
4293 "File header");
4294 }
4295
4296 sys_write = fwrite (&file_ptr->fdr,
4297 1,
4298 sizeof (FDR),
4299 object_stream);
4300
4301 if (sys_write < 0)
4302 pfatal_with_name (object_name);
4303
4304 else if (sys_write != sizeof (FDR))
4305 fatal ("Wrote %d bytes to %s, system returned %d",
4306 (int) sizeof (FDR),
4307 object_name,
4308 sys_write);
4309
4310 file_offset = offset += sizeof (FDR);
4311 }
4312 }
4313
4314 if (symbolic_header.crfd > 0) /* relative file descriptors */
4315 {
4316 long sys_write;
4317 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4318
4319 if (file_offset != symbolic_header.cbRfdOffset
4320 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4321 pfatal_with_name (object_name);
4322
4323 if (debug)
4324 {
4325 fputs ("\twrite\tvp = ", stderr);
4326 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4327 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4328 (long) symbolic_header.cbRfdOffset,
4329 num_write, "Relative file descriptors");
4330 }
4331
4332 sys_write = fwrite (orig_rfds,
4333 1,
4334 num_write,
4335 object_stream);
4336
4337 if (sys_write <= 0)
4338 pfatal_with_name (object_name);
4339
4340 else if (sys_write != (long)num_write)
4341 fatal ("Wrote %lu bytes to %s, system returned %ld",
4342 num_write,
4343 object_name,
4344 sys_write);
4345
4346 file_offset = symbolic_header.cbRfdOffset + num_write;
4347 }
4348
4349 if (symbolic_header.issExtMax > 0) /* external symbols */
4350 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4351
4352 if (fclose (object_stream) != 0)
4353 pfatal_with_name (object_name);
4354 }
4355
4356 \f
4357 /* Read some bytes at a specified location, and return a pointer. */
4358
4359 STATIC page_t *
4360 read_seek (size, offset, str)
4361 Size_t size; /* # bytes to read */
4362 off_t offset; /* offset to read at */
4363 const char *str; /* name for tracing */
4364 {
4365 page_t *ptr;
4366 long sys_read = 0;
4367
4368 if (size == 0) /* nothing to read */
4369 return (page_t *) 0;
4370
4371 if (debug)
4372 fprintf (stderr,
4373 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4374 (unsigned long) size, (unsigned long) offset, file_offset, str);
4375
4376 #ifndef MALLOC_CHECK
4377 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4378 #else
4379 ptr = (page_t *) xcalloc (1, size);
4380 #endif
4381
4382 /* If we need to seek, and the distance is nearby, just do some reads,
4383 to speed things up. */
4384 if (file_offset != offset)
4385 {
4386 symint_t difference = offset - file_offset;
4387
4388 if (difference < 8)
4389 {
4390 char small_buffer[8];
4391
4392 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4393 if (sys_read <= 0)
4394 pfatal_with_name (obj_in_name);
4395
4396 if ((symint_t)sys_read != difference)
4397 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4398 (unsigned long) size,
4399 obj_in_name,
4400 sys_read);
4401 }
4402 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4403 pfatal_with_name (obj_in_name);
4404 }
4405
4406 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4407 if (sys_read <= 0)
4408 pfatal_with_name (obj_in_name);
4409
4410 if (sys_read != (long) size)
4411 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4412 (unsigned long) size,
4413 obj_in_name,
4414 sys_read);
4415
4416 file_offset = offset + size;
4417
4418 if (file_offset > max_file_offset)
4419 max_file_offset = file_offset;
4420
4421 return ptr;
4422 }
4423
4424 \f
4425 /* Read the existing object file (and copy to the output object file
4426 if it is different from the input object file), and remove the old
4427 symbol table. */
4428
4429 STATIC void
4430 copy_object __proto((void))
4431 {
4432 char buffer[ PAGE_SIZE ];
4433 register int sys_read;
4434 register int remaining;
4435 register int num_write;
4436 register int sys_write;
4437 register int fd, es;
4438 register int delete_ifd = 0;
4439 register int *remap_file_number;
4440 struct stat stat_buf;
4441
4442 if (debug)
4443 fprintf (stderr, "\tcopy\n");
4444
4445 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4446 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4447 pfatal_with_name (obj_in_name);
4448
4449 sys_read = fread ((PTR_T) &orig_file_header,
4450 1,
4451 sizeof (struct filehdr),
4452 obj_in_stream);
4453
4454 if (sys_read < 0)
4455 pfatal_with_name (obj_in_name);
4456
4457 else if (sys_read == 0 && feof (obj_in_stream))
4458 return; /* create a .T file sans file header */
4459
4460 else if (sys_read < (int) sizeof (struct filehdr))
4461 fatal ("Wanted to read %d bytes from %s, system returned %d",
4462 (int) sizeof (struct filehdr),
4463 obj_in_name,
4464 sys_read);
4465
4466
4467 if (orig_file_header.f_nsyms != sizeof (HDRR))
4468 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4469 input_name, orig_file_header.f_nsyms, (int) sizeof (HDRR));
4470
4471
4472 /* Read in the current symbolic header. */
4473 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4474 pfatal_with_name (input_name);
4475
4476 sys_read = fread ((PTR_T) &orig_sym_hdr,
4477 1,
4478 sizeof (orig_sym_hdr),
4479 obj_in_stream);
4480
4481 if (sys_read < 0)
4482 pfatal_with_name (object_name);
4483
4484 else if (sys_read < (int) sizeof (struct filehdr))
4485 fatal ("Wanted to read %d bytes from %s, system returned %d",
4486 (int) sizeof (struct filehdr),
4487 obj_in_name,
4488 sys_read);
4489
4490
4491 /* Read in each of the sections if they exist in the object file.
4492 We read things in in the order the mips assembler creates the
4493 sections, so in theory no extra seeks are done.
4494
4495 For simplicity sake, round each read up to a page boundary,
4496 we may want to revisit this later.... */
4497
4498 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4499
4500 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4501 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4502 orig_sym_hdr.cbLineOffset,
4503 "Line numbers");
4504
4505 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4506 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4507 orig_sym_hdr.cbPdOffset,
4508 "Procedure tables");
4509
4510 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4511 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4512 orig_sym_hdr.cbSymOffset,
4513 "Local symbols");
4514
4515 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4516 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4517 orig_sym_hdr.cbAuxOffset,
4518 "Aux. symbols");
4519
4520 if (orig_sym_hdr.issMax > 0) /* local strings */
4521 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4522 orig_sym_hdr.cbSsOffset,
4523 "Local strings");
4524
4525 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4526 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4527 orig_sym_hdr.cbSsExtOffset,
4528 "External strings");
4529
4530 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4531 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4532 orig_sym_hdr.cbFdOffset,
4533 "File tables");
4534
4535 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4536 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4537 orig_sym_hdr.cbRfdOffset,
4538 "Relative file descriptors");
4539
4540 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4541 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4542 orig_sym_hdr.cbExtOffset,
4543 "External symbols");
4544
4545 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4546 {
4547 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4548 orig_sym_hdr.cbDnOffset,
4549 "Dense numbers");
4550
4551 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4552 }
4553
4554 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4555 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4556 orig_sym_hdr.cbOptOffset,
4557 "Optimizer symbols");
4558
4559
4560
4561 /* Abort if the symbol table is not last. */
4562 if (max_file_offset != stat_buf.st_size)
4563 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4564 max_file_offset,
4565 stat_buf.st_size);
4566
4567
4568 /* If the first original file descriptor is a dummy which the assembler
4569 put out, but there are no symbols in it, skip it now. */
4570 if (orig_sym_hdr.ifdMax > 1
4571 && orig_files->csym == 2
4572 && orig_files->caux == 0)
4573 {
4574 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4575 char *suffix = local_rindex (filename, '.');
4576
4577 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4578 delete_ifd = 1;
4579 }
4580
4581
4582 /* Create array to map original file numbers to the new file numbers
4583 (in case there are duplicate filenames, we collapse them into one
4584 file section, the MIPS assembler may or may not collapse them). */
4585
4586 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4587
4588 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4589 {
4590 register FDR *fd_ptr = ORIG_FILES (fd);
4591 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4592
4593 /* file support itself. */
4594 add_file (filename, filename + strlen (filename));
4595 remap_file_number[fd] = cur_file_ptr->file_index;
4596 }
4597
4598 if (delete_ifd > 0) /* just in case */
4599 remap_file_number[0] = remap_file_number[1];
4600
4601
4602 /* Loop, adding each of the external symbols. These must be in
4603 order or otherwise we would have to change the relocation
4604 entries. We don't just call add_bytes, because we need to have
4605 the names put into the external hash table. We set the type to
4606 'void' for now, and parse_def will fill in the correct type if it
4607 is in the symbol table. We must add the external symbols before
4608 the locals, since the locals do lookups against the externals. */
4609
4610 if (debug)
4611 fprintf (stderr, "\tehash\n");
4612
4613 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4614 {
4615 register EXTR *eptr = orig_ext_syms + es;
4616 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4617 register unsigned ifd = eptr->ifd;
4618
4619 (void) add_ext_symbol (ename,
4620 ename + strlen (ename),
4621 (st_t) eptr->asym.st,
4622 (sc_t) eptr->asym.sc,
4623 eptr->asym.value,
4624 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4625 ((long) ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4626 }
4627
4628
4629 /* For each of the files in the object file, copy the symbols, and such
4630 into the varrays for the new object file. */
4631
4632 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4633 {
4634 register FDR *fd_ptr = ORIG_FILES (fd);
4635 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4636 register SYMR *sym_start;
4637 register SYMR *sym;
4638 register SYMR *sym_end_p1;
4639 register PDR *proc_start;
4640 register PDR *proc;
4641 register PDR *proc_end_p1;
4642
4643 /* file support itself. */
4644 add_file (filename, filename + strlen (filename));
4645 cur_file_ptr->orig_fdr = fd_ptr;
4646
4647 /* Copy stuff that's just passed through (such as line #'s) */
4648 cur_file_ptr->fdr.adr = fd_ptr->adr;
4649 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4650 cur_file_ptr->fdr.cline = fd_ptr->cline;
4651 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4652 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4653 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4654 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4655 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4656 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4657 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4658
4659 if (debug)
4660 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4661
4662 /* For each of the static and global symbols defined, add them
4663 to the hash table of original symbols, so we can look up
4664 their values. */
4665
4666 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4667 sym_end_p1 = sym_start + fd_ptr->csym;
4668 for (sym = sym_start; sym < sym_end_p1; sym++)
4669 {
4670 switch ((st_t) sym->st)
4671 {
4672 default:
4673 break;
4674
4675 case st_Global:
4676 case st_Static:
4677 case st_Label:
4678 case st_Proc:
4679 case st_StaticProc:
4680 {
4681 auto symint_t hash_index;
4682 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4683 register Size_t len = strlen (str);
4684 register shash_t *shash_ptr = hash_string (str,
4685 (Ptrdiff_t)len,
4686 &orig_str_hash[0],
4687 &hash_index);
4688
4689 if (shash_ptr != (shash_t *) 0)
4690 error ("internal error, %s is already in original symbol table", str);
4691
4692 else
4693 {
4694 shash_ptr = allocate_shash ();
4695 shash_ptr->next = orig_str_hash[hash_index];
4696 orig_str_hash[hash_index] = shash_ptr;
4697
4698 shash_ptr->len = len;
4699 shash_ptr->indx = indexNil;
4700 shash_ptr->string = str;
4701 shash_ptr->sym_ptr = sym;
4702 }
4703 }
4704 break;
4705
4706 case st_End:
4707 if ((sc_t) sym->sc == sc_Text)
4708 {
4709 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4710
4711 if (*str != '\0')
4712 {
4713 register Size_t len = strlen (str);
4714 register shash_t *shash_ptr = hash_string (str,
4715 (Ptrdiff_t)len,
4716 &orig_str_hash[0],
4717 (symint_t *) 0);
4718
4719 if (shash_ptr != (shash_t *) 0)
4720 shash_ptr->end_ptr = sym;
4721 }
4722 }
4723 break;
4724
4725 }
4726 }
4727
4728 if (debug)
4729 {
4730 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4731 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4732 }
4733
4734 /* Go through each of the procedures in this file, and add the
4735 procedure pointer to the hash entry for the given name. */
4736
4737 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4738 proc_end_p1 = proc_start + fd_ptr->cpd;
4739 for (proc = proc_start; proc < proc_end_p1; proc++)
4740 {
4741 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4742 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4743 register Size_t len = strlen (str);
4744 register shash_t *shash_ptr = hash_string (str,
4745 (Ptrdiff_t)len,
4746 &orig_str_hash[0],
4747 (symint_t *) 0);
4748
4749 if (shash_ptr == (shash_t *) 0)
4750 error ("internal error, function %s is not in original symbol table", str);
4751
4752 else
4753 shash_ptr->proc_ptr = proc;
4754 }
4755
4756 if (debug)
4757 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4758
4759 }
4760 cur_file_ptr = first_file;
4761
4762
4763 /* Copy all of the object file up to the symbol table. Originally
4764 we were going to use ftruncate, but that doesn't seem to work
4765 on Ultrix 3.1.... */
4766
4767 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4768 pfatal_with_name (obj_in_name);
4769
4770 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4771 pfatal_with_name (object_name);
4772
4773 for (remaining = orig_file_header.f_symptr;
4774 remaining > 0;
4775 remaining -= num_write)
4776 {
4777 num_write =
4778 (remaining <= (int) sizeof (buffer)) ? remaining : sizeof (buffer);
4779 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4780 if (sys_read <= 0)
4781 pfatal_with_name (obj_in_name);
4782
4783 else if (sys_read != num_write)
4784 fatal ("Wanted to read %d bytes from %s, system returned %d",
4785 num_write,
4786 obj_in_name,
4787 sys_read);
4788
4789 sys_write = fwrite (buffer, 1, num_write, object_stream);
4790 if (sys_write <= 0)
4791 pfatal_with_name (object_name);
4792
4793 else if (sys_write != num_write)
4794 fatal ("Wrote %d bytes to %s, system returned %d",
4795 num_write,
4796 object_name,
4797 sys_write);
4798 }
4799 }
4800
4801 \f
4802 /* Ye olde main program. */
4803
4804 int
4805 main (argc, argv)
4806 int argc;
4807 char *argv[];
4808 {
4809 int iflag = 0;
4810 char *p = local_rindex (argv[0], '/');
4811 char *num_end;
4812 int option;
4813 int i;
4814
4815 progname = (p != 0) ? p+1 : argv[0];
4816
4817 (void) signal (SIGSEGV, catch_signal);
4818 (void) signal (SIGBUS, catch_signal);
4819 (void) signal (SIGABRT, catch_signal);
4820
4821 #if !defined(__SABER__) && !defined(lint)
4822 if (sizeof (efdr_t) > PAGE_USIZE)
4823 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4824 (int) sizeof (efdr_t),
4825 (int) PAGE_USIZE);
4826
4827 if (sizeof (page_t) != PAGE_USIZE)
4828 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4829 (int) sizeof (page_t),
4830 (int) PAGE_USIZE);
4831
4832 #endif
4833
4834 alloc_counts[ alloc_type_none ].alloc_name = "none";
4835 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4836 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4837 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4838 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4839 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4840 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4841 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4842 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4843
4844 int_type_info = type_info_init;
4845 int_type_info.basic_type = bt_Int;
4846
4847 void_type_info = type_info_init;
4848 void_type_info.basic_type = bt_Void;
4849
4850 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4851 switch (option)
4852 {
4853 default:
4854 had_errors++;
4855 break;
4856
4857 case 'd':
4858 debug = strtol (optarg, &num_end, 0);
4859 if ((unsigned)debug > 4 || num_end == optarg)
4860 had_errors++;
4861
4862 break;
4863
4864 case 'I':
4865 if (rename_output || obj_in_name != (char *) 0)
4866 had_errors++;
4867 else
4868 rename_output = 1;
4869
4870 /* fall through to 'i' case. */
4871
4872 case 'i':
4873 if (obj_in_name == (char *) 0)
4874 {
4875 obj_in_name = optarg;
4876 iflag++;
4877 }
4878 else
4879 had_errors++;
4880 break;
4881
4882 case 'o':
4883 if (object_name == (char *) 0)
4884 object_name = optarg;
4885 else
4886 had_errors++;
4887 break;
4888
4889 case 'v':
4890 version++;
4891 break;
4892 }
4893
4894 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4895 obj_in_name = argv[--argc];
4896
4897 if (object_name == (char *) 0 && optind <= argc - 2)
4898 object_name = argv[--argc];
4899
4900 /* If there is an output name, but no input name use
4901 the same file for both, deleting the name between
4902 opening it for input and opening it for output. */
4903 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4904 {
4905 obj_in_name = object_name;
4906 delete_input = 1;
4907 }
4908
4909 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4910 {
4911 fprintf (stderr, "Calling Sequence:\n");
4912 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4913 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4914 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4915 fprintf (stderr, "\n");
4916 fprintf (stderr, "Debug levels are:\n");
4917 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4918 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4919 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4920 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4921 return 1;
4922 }
4923
4924
4925 if (version)
4926 {
4927 fprintf (stderr, "mips-tfile version %s", version_string);
4928 #ifdef TARGET_VERSION
4929 TARGET_VERSION;
4930 #endif
4931 fputc ('\n', stderr);
4932 }
4933
4934 if (obj_in_name == (char *) 0)
4935 obj_in_name = object_name;
4936
4937 if (rename_output && rename (object_name, obj_in_name) != 0)
4938 {
4939 char *buffer = (char *) allocate_multiple_pages (4);
4940 int len;
4941 int len2;
4942 int in_fd;
4943 int out_fd;
4944
4945 /* Rename failed, copy input file */
4946 in_fd = open (object_name, O_RDONLY, 0666);
4947 if (in_fd < 0)
4948 pfatal_with_name (object_name);
4949
4950 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4951 if (out_fd < 0)
4952 pfatal_with_name (obj_in_name);
4953
4954 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4955 {
4956 len2 = write (out_fd, buffer, len);
4957 if (len2 < 0)
4958 pfatal_with_name (object_name);
4959
4960 if (len != len2)
4961 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4962 }
4963
4964 free_multiple_pages ((page_t *)buffer, 4);
4965
4966 if (len < 0)
4967 pfatal_with_name (object_name);
4968
4969 if (close (in_fd) < 0)
4970 pfatal_with_name (object_name);
4971
4972 if (close (out_fd) < 0)
4973 pfatal_with_name (obj_in_name);
4974 }
4975
4976 /* Must open input before output, since the output may be the same file, and
4977 we need to get the input handle before truncating it. */
4978 obj_in_stream = fopen (obj_in_name, "r");
4979 if (obj_in_stream == (FILE *) 0)
4980 pfatal_with_name (obj_in_name);
4981
4982 if (delete_input && unlink (obj_in_name) != 0)
4983 pfatal_with_name (obj_in_name);
4984
4985 object_stream = fopen (object_name, "w");
4986 if (object_stream == (FILE *) 0)
4987 pfatal_with_name (object_name);
4988
4989 if (strcmp (argv[optind], "-") != 0)
4990 {
4991 input_name = argv[optind];
4992 if (freopen (argv[optind], "r", stdin) != stdin)
4993 pfatal_with_name (argv[optind]);
4994 }
4995
4996 copy_object (); /* scan & copy object file */
4997 parse_input (); /* scan all of input */
4998
4999 update_headers (); /* write out tfile */
5000 write_object ();
5001
5002 if (debug)
5003 {
5004 fprintf (stderr, "\n\tAllocation summary:\n\n");
5005 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5006 if (alloc_counts[i].total_alloc)
5007 {
5008 fprintf (stderr,
5009 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5010 alloc_counts[i].alloc_name,
5011 alloc_counts[i].total_alloc,
5012 alloc_counts[i].total_free,
5013 alloc_counts[i].total_pages);
5014 }
5015 }
5016
5017 return (had_errors) ? 1 : 0;
5018 }
5019
5020 \f
5021 /* Catch a signal and exit without dumping core. */
5022
5023 STATIC void
5024 catch_signal (signum)
5025 int signum;
5026 {
5027 (void) signal (signum, SIG_DFL); /* just in case... */
5028 fatal (strsignal(signum));
5029 }
5030
5031 /* Print a fatal error message. NAME is the text.
5032 Also include a system error message based on `errno'. */
5033
5034 void
5035 pfatal_with_name (msg)
5036 const char *msg;
5037 {
5038 int save_errno = errno; /* just in case.... */
5039 if (line_number > 0)
5040 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5041 else
5042 fprintf (stderr, "%s:", progname);
5043
5044 errno = save_errno;
5045 if (errno == 0)
5046 fprintf (stderr, "[errno = 0] %s\n", msg);
5047 else
5048 perror (msg);
5049
5050 exit (1);
5051 }
5052
5053 \f
5054 /* Procedure to abort with an out of bounds error message. It has
5055 type int, so it can be used with an ?: expression within the
5056 ORIG_xxx macros, but the function never returns. */
5057
5058 static int
5059 out_of_bounds (indx, max, str, prog_line)
5060 symint_t indx; /* index that is out of bounds */
5061 symint_t max; /* maximum index */
5062 const char *str; /* string to print out */
5063 int prog_line; /* line number within mips-tfile.c */
5064 {
5065 if (indx < max) /* just in case */
5066 return 0;
5067
5068 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5069 progname, input_name, line_number, indx, str, max, prog_line);
5070
5071 exit (1);
5072 return 0; /* turn off warning messages */
5073 }
5074
5075 \f
5076 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5077 like sbrk's behind its back (or sbrk isn't available). If we use
5078 sbrk, we assume it gives us zeroed pages. */
5079
5080 #ifndef MALLOC_CHECK
5081 #ifdef USE_MALLOC
5082
5083 STATIC page_t *
5084 allocate_cluster (npages)
5085 Size_t npages;
5086 {
5087 register page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5088
5089 if (debug > 3)
5090 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5091
5092 return value;
5093 }
5094
5095 #else /* USE_MALLOC */
5096
5097 STATIC page_t *
5098 allocate_cluster (npages)
5099 Size_t npages;
5100 {
5101 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5102 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5103
5104 if (offset != 0) /* align to a page boundary */
5105 {
5106 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5107 pfatal_with_name ("allocate_cluster");
5108
5109 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5110 }
5111
5112 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5113 pfatal_with_name ("allocate_cluster");
5114
5115 if (debug > 3)
5116 {
5117 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5118 (unsigned long) npages);
5119 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5120 fputs ("\n", stderr);
5121 }
5122
5123 return ptr;
5124 }
5125
5126 #endif /* USE_MALLOC */
5127
5128
5129 static page_t *cluster_ptr = NULL;
5130 static unsigned pages_left = 0;
5131
5132 #endif /* MALLOC_CHECK */
5133
5134
5135 /* Allocate some pages (which is initialized to 0). */
5136
5137 STATIC page_t *
5138 allocate_multiple_pages (npages)
5139 Size_t npages;
5140 {
5141 #ifndef MALLOC_CHECK
5142 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5143 {
5144 pages_left = MAX_CLUSTER_PAGES;
5145 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5146 }
5147
5148 if (npages <= pages_left)
5149 {
5150 page_t *ptr = cluster_ptr;
5151 cluster_ptr += npages;
5152 pages_left -= npages;
5153 return ptr;
5154 }
5155
5156 return allocate_cluster (npages);
5157
5158 #else /* MALLOC_CHECK */
5159 return (page_t *) xcalloc (npages, PAGE_SIZE);
5160
5161 #endif /* MALLOC_CHECK */
5162 }
5163
5164
5165 /* Release some pages. */
5166
5167 STATIC void
5168 free_multiple_pages (page_ptr, npages)
5169 page_t *page_ptr;
5170 Size_t npages;
5171 {
5172 #ifndef MALLOC_CHECK
5173 if (pages_left == 0)
5174 {
5175 cluster_ptr = page_ptr;
5176 pages_left = npages;
5177 }
5178
5179 else if ((page_ptr + npages) == cluster_ptr)
5180 {
5181 cluster_ptr -= npages;
5182 pages_left += npages;
5183 }
5184
5185 /* otherwise the page is not freed. If more than call is
5186 done, we probably should worry about it, but at present,
5187 the free pages is done right after an allocate. */
5188
5189 #else /* MALLOC_CHECK */
5190 free ((char *) page_ptr);
5191
5192 #endif /* MALLOC_CHECK */
5193 }
5194
5195
5196 /* Allocate one page (which is initialized to 0). */
5197
5198 STATIC page_t *
5199 allocate_page __proto((void))
5200 {
5201 #ifndef MALLOC_CHECK
5202 if (pages_left == 0)
5203 {
5204 pages_left = MAX_CLUSTER_PAGES;
5205 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5206 }
5207
5208 pages_left--;
5209 return cluster_ptr++;
5210
5211 #else /* MALLOC_CHECK */
5212 return (page_t *) xcalloc (1, PAGE_SIZE);
5213
5214 #endif /* MALLOC_CHECK */
5215 }
5216
5217 \f
5218 /* Allocate scoping information. */
5219
5220 STATIC scope_t *
5221 allocate_scope __proto((void))
5222 {
5223 register scope_t *ptr;
5224 static scope_t initial_scope;
5225
5226 #ifndef MALLOC_CHECK
5227 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5228 if (ptr != (scope_t *) 0)
5229 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5230
5231 else
5232 {
5233 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5234 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5235
5236 if (unallocated == 0)
5237 {
5238 unallocated = PAGE_SIZE / sizeof (scope_t);
5239 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5240 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5241 }
5242
5243 ptr = &cur_page->scope[ --unallocated ];
5244 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5245 }
5246
5247 #else
5248 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5249
5250 #endif
5251
5252 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5253 *ptr = initial_scope;
5254 return ptr;
5255 }
5256
5257 /* Free scoping information. */
5258
5259 STATIC void
5260 free_scope (ptr)
5261 scope_t *ptr;
5262 {
5263 alloc_counts[ (int)alloc_type_scope ].total_free++;
5264
5265 #ifndef MALLOC_CHECK
5266 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5267 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5268
5269 #else
5270 free ((PTR_T) ptr);
5271 #endif
5272
5273 }
5274
5275 \f
5276 /* Allocate links for pages in a virtual array. */
5277
5278 STATIC vlinks_t *
5279 allocate_vlinks __proto((void))
5280 {
5281 register vlinks_t *ptr;
5282 static vlinks_t initial_vlinks;
5283
5284 #ifndef MALLOC_CHECK
5285 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5286 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5287
5288 if (unallocated == 0)
5289 {
5290 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5291 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5292 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5293 }
5294
5295 ptr = &cur_page->vlinks[ --unallocated ];
5296 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5297
5298 #else
5299 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5300
5301 #endif
5302
5303 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5304 *ptr = initial_vlinks;
5305 return ptr;
5306 }
5307
5308 \f
5309 /* Allocate string hash buckets. */
5310
5311 STATIC shash_t *
5312 allocate_shash __proto((void))
5313 {
5314 register shash_t *ptr;
5315 static shash_t initial_shash;
5316
5317 #ifndef MALLOC_CHECK
5318 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5319 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5320
5321 if (unallocated == 0)
5322 {
5323 unallocated = PAGE_SIZE / sizeof (shash_t);
5324 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5325 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5326 }
5327
5328 ptr = &cur_page->shash[ --unallocated ];
5329 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5330
5331 #else
5332 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5333
5334 #endif
5335
5336 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5337 *ptr = initial_shash;
5338 return ptr;
5339 }
5340
5341 \f
5342 /* Allocate type hash buckets. */
5343
5344 STATIC thash_t *
5345 allocate_thash __proto((void))
5346 {
5347 register thash_t *ptr;
5348 static thash_t initial_thash;
5349
5350 #ifndef MALLOC_CHECK
5351 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5352 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5353
5354 if (unallocated == 0)
5355 {
5356 unallocated = PAGE_SIZE / sizeof (thash_t);
5357 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5358 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5359 }
5360
5361 ptr = &cur_page->thash[ --unallocated ];
5362 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5363
5364 #else
5365 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5366
5367 #endif
5368
5369 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5370 *ptr = initial_thash;
5371 return ptr;
5372 }
5373
5374 \f
5375 /* Allocate structure, union, or enum tag information. */
5376
5377 STATIC tag_t *
5378 allocate_tag __proto((void))
5379 {
5380 register tag_t *ptr;
5381 static tag_t initial_tag;
5382
5383 #ifndef MALLOC_CHECK
5384 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5385 if (ptr != (tag_t *) 0)
5386 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5387
5388 else
5389 {
5390 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5391 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5392
5393 if (unallocated == 0)
5394 {
5395 unallocated = PAGE_SIZE / sizeof (tag_t);
5396 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5397 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5398 }
5399
5400 ptr = &cur_page->tag[ --unallocated ];
5401 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5402 }
5403
5404 #else
5405 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5406
5407 #endif
5408
5409 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5410 *ptr = initial_tag;
5411 return ptr;
5412 }
5413
5414 /* Free scoping information. */
5415
5416 STATIC void
5417 free_tag (ptr)
5418 tag_t *ptr;
5419 {
5420 alloc_counts[ (int)alloc_type_tag ].total_free++;
5421
5422 #ifndef MALLOC_CHECK
5423 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5424 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5425
5426 #else
5427 free ((PTR_T) ptr);
5428 #endif
5429
5430 }
5431
5432 \f
5433 /* Allocate forward reference to a yet unknown tag. */
5434
5435 STATIC forward_t *
5436 allocate_forward __proto((void))
5437 {
5438 register forward_t *ptr;
5439 static forward_t initial_forward;
5440
5441 #ifndef MALLOC_CHECK
5442 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5443 if (ptr != (forward_t *) 0)
5444 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5445
5446 else
5447 {
5448 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5449 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5450
5451 if (unallocated == 0)
5452 {
5453 unallocated = PAGE_SIZE / sizeof (forward_t);
5454 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5455 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5456 }
5457
5458 ptr = &cur_page->forward[ --unallocated ];
5459 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5460 }
5461
5462 #else
5463 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5464
5465 #endif
5466
5467 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5468 *ptr = initial_forward;
5469 return ptr;
5470 }
5471
5472 /* Free scoping information. */
5473
5474 STATIC void
5475 free_forward (ptr)
5476 forward_t *ptr;
5477 {
5478 alloc_counts[ (int)alloc_type_forward ].total_free++;
5479
5480 #ifndef MALLOC_CHECK
5481 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5482 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5483
5484 #else
5485 free ((PTR_T) ptr);
5486 #endif
5487
5488 }
5489
5490 \f
5491 /* Allocate head of type hash list. */
5492
5493 STATIC thead_t *
5494 allocate_thead __proto((void))
5495 {
5496 register thead_t *ptr;
5497 static thead_t initial_thead;
5498
5499 #ifndef MALLOC_CHECK
5500 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5501 if (ptr != (thead_t *) 0)
5502 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5503
5504 else
5505 {
5506 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5507 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5508
5509 if (unallocated == 0)
5510 {
5511 unallocated = PAGE_SIZE / sizeof (thead_t);
5512 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5513 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5514 }
5515
5516 ptr = &cur_page->thead[ --unallocated ];
5517 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5518 }
5519
5520 #else
5521 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5522
5523 #endif
5524
5525 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5526 *ptr = initial_thead;
5527 return ptr;
5528 }
5529
5530 /* Free scoping information. */
5531
5532 STATIC void
5533 free_thead (ptr)
5534 thead_t *ptr;
5535 {
5536 alloc_counts[ (int)alloc_type_thead ].total_free++;
5537
5538 #ifndef MALLOC_CHECK
5539 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5540 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5541
5542 #else
5543 free ((PTR_T) ptr);
5544 #endif
5545
5546 }
5547
5548 #endif /* MIPS_DEBUGGING_INFO */
5549
5550 \f
5551 /* Output an error message and exit */
5552
5553 /*VARARGS*/
5554 void
5555 fatal VPROTO((const char *format, ...))
5556 {
5557 #ifndef ANSI_PROTOTYPES
5558 const char *format;
5559 #endif
5560 va_list ap;
5561
5562 VA_START (ap, format);
5563
5564 #ifndef ANSI_PROTOTYPES
5565 format = va_arg (ap, const char *);
5566 #endif
5567
5568 if (line_number > 0)
5569 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5570 else
5571 fprintf (stderr, "%s:", progname);
5572
5573 vfprintf (stderr, format, ap);
5574 va_end (ap);
5575 fprintf (stderr, "\n");
5576 if (line_number > 0)
5577 fprintf (stderr, "line:\t%s\n", cur_line_start);
5578
5579 saber_stop ();
5580 exit (1);
5581 }
5582
5583 /*VARARGS*/
5584 void
5585 error VPROTO((const char *format, ...))
5586 {
5587 #ifndef ANSI_PROTOTYPES
5588 char *format;
5589 #endif
5590 va_list ap;
5591
5592 VA_START (ap, format);
5593
5594 #ifndef ANSI_PROTOTYPES
5595 format = va_arg (ap, 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 fprintf (stderr, "\n");
5605 if (line_number > 0)
5606 fprintf (stderr, "line:\t%s\n", cur_line_start);
5607
5608 had_errors++;
5609 va_end (ap);
5610
5611 saber_stop ();
5612 }
5613
5614 /* More 'friendly' abort that prints the line and file.
5615 config.h can #define abort fancy_abort if you like that sort of thing. */
5616
5617 void
5618 fancy_abort ()
5619 {
5620 fatal ("Internal abort.");
5621 }
5622 \f
5623
5624 /* When `malloc.c' is compiled with `rcheck' defined,
5625 it calls this function to report clobberage. */
5626
5627 void
5628 botch (s)
5629 const char *s;
5630 {
5631 fatal (s);
5632 }
5633
5634 \f
5635 /* Define our own index/rindex, since the local and global symbol
5636 structures as defined by MIPS has an 'index' field. */
5637
5638 STATIC char *
5639 local_index (str, sentinel)
5640 const char *str;
5641 int sentinel;
5642 {
5643 int ch;
5644
5645 for ( ; (ch = *str) != sentinel; str++)
5646 {
5647 if (ch == '\0')
5648 return (char *) 0;
5649 }
5650
5651 return (char *)str;
5652 }
5653
5654 STATIC char *
5655 local_rindex (str, sentinel)
5656 const char *str;
5657 int sentinel;
5658 {
5659 int ch;
5660 const char *ret = (const char *) 0;
5661
5662 for ( ; (ch = *str) != '\0'; str++)
5663 {
5664 if (ch == sentinel)
5665 ret = str;
5666 }
5667
5668 return (char *)ret;
5669 }
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