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[official-gcc.git] / gcc / mips-tfile.c
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1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001
6 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 2, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING. If not, write to the Free
23 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 02111-1307, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indexs are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "version.h"
606 #include "intl.h"
607
608 #ifndef __SABER__
609 #define saber_stop()
610 #endif
611
612 #ifndef __LINE__
613 #define __LINE__ 0
614 #endif
615
616 /* Due to size_t being defined in sys/types.h and different
617 in stddef.h, we have to do this by hand..... Note, these
618 types are correct for MIPS based systems, and may not be
619 correct for other systems. Ultrix 4.0 and Silicon Graphics
620 have this fixed, but since the following is correct, and
621 the fact that including stddef.h gets you GCC's version
622 instead of the standard one it's not worth it to fix it. */
623
624 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
625 #define Size_t long unsigned int
626 #else
627 #define Size_t unsigned int
628 #endif
629 #define Ptrdiff_t long
630
631 /* The following might be called from obstack or malloc,
632 so they can't be static. */
633
634 extern void pfatal_with_name
635 PARAMS ((const char *)) ATTRIBUTE_NORETURN;
636 extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
637 void botch PARAMS ((const char *)) ATTRIBUTE_NORETURN;
638
639 extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
640 extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
641 \f
642 #ifndef MIPS_DEBUGGING_INFO
643
644 static int line_number;
645 static int cur_line_start;
646 static int debug;
647 static int had_errors;
648 static const char *progname;
649 static const char *input_name;
650
651 int
652 main ()
653 {
654 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
655 exit (1);
656 }
657
658 #else /* MIPS_DEBUGGING defined */
659 \f
660 /* The local and global symbols have a field index, so undo any defines
661 of index -> strchr. */
662
663 #undef index
664
665 #include <signal.h>
666
667 #ifndef CROSS_COMPILE
668 #include <a.out.h>
669 #else
670 #include "mips/a.out.h"
671 #endif /* CROSS_COMPILE */
672
673 #include "gstab.h"
674
675 #define STAB_CODE_TYPE enum __stab_debug_code
676
677 #ifndef MALLOC_CHECK
678 #ifdef __SABER__
679 #define MALLOC_CHECK
680 #endif
681 #endif
682
683 #define IS_ASM_IDENT(ch) \
684 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
685
686 \f
687 /* Redefinition of storage classes as an enumeration for better
688 debugging. */
689
690 typedef enum sc {
691 sc_Nil = scNil, /* no storage class */
692 sc_Text = scText, /* text symbol */
693 sc_Data = scData, /* initialized data symbol */
694 sc_Bss = scBss, /* un-initialized data symbol */
695 sc_Register = scRegister, /* value of symbol is register number */
696 sc_Abs = scAbs, /* value of symbol is absolute */
697 sc_Undefined = scUndefined, /* who knows? */
698 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
699 sc_Bits = scBits, /* this is a bit field */
700 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
701 sc_RegImage = scRegImage, /* register value saved on stack */
702 sc_Info = scInfo, /* symbol contains debugger information */
703 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
704 sc_SData = scSData, /* load time only small data */
705 sc_SBss = scSBss, /* load time only small common */
706 sc_RData = scRData, /* load time only read only data */
707 sc_Var = scVar, /* Var parameter (fortran,pascal) */
708 sc_Common = scCommon, /* common variable */
709 sc_SCommon = scSCommon, /* small common */
710 sc_VarRegister = scVarRegister, /* Var parameter in a register */
711 sc_Variant = scVariant, /* Variant record */
712 sc_SUndefined = scSUndefined, /* small undefined(external) data */
713 sc_Init = scInit, /* .init section symbol */
714 sc_Max = scMax /* Max storage class+1 */
715 } sc_t;
716
717 /* Redefinition of symbol type. */
718
719 typedef enum st {
720 st_Nil = stNil, /* Nuthin' special */
721 st_Global = stGlobal, /* external symbol */
722 st_Static = stStatic, /* static */
723 st_Param = stParam, /* procedure argument */
724 st_Local = stLocal, /* local variable */
725 st_Label = stLabel, /* label */
726 st_Proc = stProc, /* " " Procedure */
727 st_Block = stBlock, /* beginning of block */
728 st_End = stEnd, /* end (of anything) */
729 st_Member = stMember, /* member (of anything - struct/union/enum */
730 st_Typedef = stTypedef, /* type definition */
731 st_File = stFile, /* file name */
732 st_RegReloc = stRegReloc, /* register relocation */
733 st_Forward = stForward, /* forwarding address */
734 st_StaticProc = stStaticProc, /* load time only static procs */
735 st_Constant = stConstant, /* const */
736 st_Str = stStr, /* string */
737 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
738 st_Expr = stExpr, /* 2+2 vs. 4 */
739 st_Type = stType, /* post-coercion SER */
740 st_Max = stMax /* max type+1 */
741 } st_t;
742
743 /* Redefinition of type qualifiers. */
744
745 typedef enum tq {
746 tq_Nil = tqNil, /* bt is what you see */
747 tq_Ptr = tqPtr, /* pointer */
748 tq_Proc = tqProc, /* procedure */
749 tq_Array = tqArray, /* duh */
750 tq_Far = tqFar, /* longer addressing - 8086/8 land */
751 tq_Vol = tqVol, /* volatile */
752 tq_Max = tqMax /* Max type qualifier+1 */
753 } tq_t;
754
755 /* Redefinition of basic types. */
756
757 typedef enum bt {
758 bt_Nil = btNil, /* undefined */
759 bt_Adr = btAdr, /* address - integer same size as pointer */
760 bt_Char = btChar, /* character */
761 bt_UChar = btUChar, /* unsigned character */
762 bt_Short = btShort, /* short */
763 bt_UShort = btUShort, /* unsigned short */
764 bt_Int = btInt, /* int */
765 bt_UInt = btUInt, /* unsigned int */
766 bt_Long = btLong, /* long */
767 bt_ULong = btULong, /* unsigned long */
768 bt_Float = btFloat, /* float (real) */
769 bt_Double = btDouble, /* Double (real) */
770 bt_Struct = btStruct, /* Structure (Record) */
771 bt_Union = btUnion, /* Union (variant) */
772 bt_Enum = btEnum, /* Enumerated */
773 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
774 bt_Range = btRange, /* subrange of int */
775 bt_Set = btSet, /* pascal sets */
776 bt_Complex = btComplex, /* fortran complex */
777 bt_DComplex = btDComplex, /* fortran double complex */
778 bt_Indirect = btIndirect, /* forward or unnamed typedef */
779 bt_FixedDec = btFixedDec, /* Fixed Decimal */
780 bt_FloatDec = btFloatDec, /* Float Decimal */
781 bt_String = btString, /* Varying Length Character String */
782 bt_Bit = btBit, /* Aligned Bit String */
783 bt_Picture = btPicture, /* Picture */
784
785 #ifdef btVoid
786 bt_Void = btVoid, /* Void */
787 #else
788 #define bt_Void bt_Nil
789 #endif
790
791 bt_Max = btMax /* Max basic type+1 */
792 } bt_t;
793
794 \f
795
796 /* Basic COFF storage classes. */
797 enum coff_storage {
798 C_EFCN = -1,
799 C_NULL = 0,
800 C_AUTO = 1,
801 C_EXT = 2,
802 C_STAT = 3,
803 C_REG = 4,
804 C_EXTDEF = 5,
805 C_LABEL = 6,
806 C_ULABEL = 7,
807 C_MOS = 8,
808 C_ARG = 9,
809 C_STRTAG = 10,
810 C_MOU = 11,
811 C_UNTAG = 12,
812 C_TPDEF = 13,
813 C_USTATIC = 14,
814 C_ENTAG = 15,
815 C_MOE = 16,
816 C_REGPARM = 17,
817 C_FIELD = 18,
818 C_BLOCK = 100,
819 C_FCN = 101,
820 C_EOS = 102,
821 C_FILE = 103,
822 C_LINE = 104,
823 C_ALIAS = 105,
824 C_HIDDEN = 106,
825 C_MAX = 107
826 } coff_storage_t;
827
828 /* Regular COFF fundamental type. */
829 typedef enum coff_type {
830 T_NULL = 0,
831 T_ARG = 1,
832 T_CHAR = 2,
833 T_SHORT = 3,
834 T_INT = 4,
835 T_LONG = 5,
836 T_FLOAT = 6,
837 T_DOUBLE = 7,
838 T_STRUCT = 8,
839 T_UNION = 9,
840 T_ENUM = 10,
841 T_MOE = 11,
842 T_UCHAR = 12,
843 T_USHORT = 13,
844 T_UINT = 14,
845 T_ULONG = 15,
846 T_MAX = 16
847 } coff_type_t;
848
849 /* Regular COFF derived types. */
850 typedef enum coff_dt {
851 DT_NON = 0,
852 DT_PTR = 1,
853 DT_FCN = 2,
854 DT_ARY = 3,
855 DT_MAX = 4
856 } coff_dt_t;
857
858 #define N_BTMASK 017 /* bitmask to isolate basic type */
859 #define N_TMASK 003 /* bitmask to isolate derived type */
860 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
861 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
862 #define N_TQ 6 /* # of type qualifiers */
863
864 /* States for whether to hash type or not. */
865 typedef enum hash_state {
866 hash_no = 0, /* don't hash type */
867 hash_yes = 1, /* ok to hash type, or use previous hash */
868 hash_record = 2 /* ok to record hash, but don't use prev. */
869 } hash_state_t;
870
871
872 /* Types of different sized allocation requests. */
873 enum alloc_type {
874 alloc_type_none, /* dummy value */
875 alloc_type_scope, /* nested scopes linked list */
876 alloc_type_vlinks, /* glue linking pages in varray */
877 alloc_type_shash, /* string hash element */
878 alloc_type_thash, /* type hash element */
879 alloc_type_tag, /* struct/union/tag element */
880 alloc_type_forward, /* element to hold unknown tag */
881 alloc_type_thead, /* head of type hash list */
882 alloc_type_varray, /* general varray allocation */
883 alloc_type_last /* last+1 element for array bounds */
884 };
885
886 \f
887 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
888 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
889
890
891 /* Structures to provide n-number of virtual arrays, each of which can
892 grow linearly, and which are written in the object file as sequential
893 pages. On systems with a BSD malloc that define USE_MALLOC, the
894 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
895 adds its overhead, and rounds up to the next power of 2. Pages are
896 linked together via a linked list.
897
898 If PAGE_SIZE is > 4096, the string length in the shash_t structure
899 can't be represented (assuming there are strings > 4096 bytes). */
900
901 #ifndef PAGE_SIZE
902 #define PAGE_SIZE 4096 /* size of varray pages */
903 #endif
904
905 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
906
907
908 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
909 #ifndef USE_MALLOC /* in one memory request */
910 #define MAX_CLUSTER_PAGES 64
911 #else
912 #define MAX_CLUSTER_PAGES 63
913 #endif
914 #endif
915
916
917 /* Linked list connecting separate page allocations. */
918 typedef struct vlinks {
919 struct vlinks *prev; /* previous set of pages */
920 struct vlinks *next; /* next set of pages */
921 union page *datum; /* start of page */
922 unsigned long start_index; /* starting index # of page */
923 } vlinks_t;
924
925
926 /* Virtual array header. */
927 typedef struct varray {
928 vlinks_t *first; /* first page link */
929 vlinks_t *last; /* last page link */
930 unsigned long num_allocated; /* # objects allocated */
931 unsigned short object_size; /* size in bytes of each object */
932 unsigned short objects_per_page; /* # objects that can fit on a page */
933 unsigned short objects_last_page; /* # objects allocated on last page */
934 } varray_t;
935
936 #ifndef MALLOC_CHECK
937 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
938 #else
939 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
940 #endif
941
942 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
943 (vlinks_t *) 0, /* first */ \
944 (vlinks_t *) 0, /* last */ \
945 0, /* num_allocated */ \
946 sizeof (type), /* object_size */ \
947 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
948 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
949 }
950
951 /* Master type for indexes within the symbol table. */
952 typedef unsigned long symint_t;
953
954
955 /* Linked list support for nested scopes (file, block, structure, etc.). */
956 typedef struct scope {
957 struct scope *prev; /* previous scope level */
958 struct scope *free; /* free list pointer */
959 SYMR *lsym; /* pointer to local symbol node */
960 symint_t lnumber; /* lsym index */
961 st_t type; /* type of the node */
962 } scope_t;
963
964
965 /* Forward reference list for tags referenced, but not yet defined. */
966 typedef struct forward {
967 struct forward *next; /* next forward reference */
968 struct forward *free; /* free list pointer */
969 AUXU *ifd_ptr; /* pointer to store file index */
970 AUXU *index_ptr; /* pointer to store symbol index */
971 AUXU *type_ptr; /* pointer to munge type info */
972 } forward_t;
973
974
975 /* Linked list support for tags. The first tag in the list is always
976 the current tag for that block. */
977 typedef struct tag {
978 struct tag *free; /* free list pointer */
979 struct shash *hash_ptr; /* pointer to the hash table head */
980 struct tag *same_name; /* tag with same name in outer scope */
981 struct tag *same_block; /* next tag defined in the same block. */
982 struct forward *forward_ref; /* list of forward references */
983 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
984 symint_t ifd; /* file # tag defined in */
985 symint_t indx; /* index within file's local symbols */
986 } tag_t;
987
988
989 /* Head of a block's linked list of tags. */
990 typedef struct thead {
991 struct thead *prev; /* previous block */
992 struct thead *free; /* free list pointer */
993 struct tag *first_tag; /* first tag in block defined */
994 } thead_t;
995
996
997 /* Union containing pointers to each the small structures which are freed up. */
998 typedef union small_free {
999 scope_t *f_scope; /* scope structure */
1000 thead_t *f_thead; /* tag head structure */
1001 tag_t *f_tag; /* tag element structure */
1002 forward_t *f_forward; /* forward tag reference */
1003 } small_free_t;
1004
1005
1006 /* String hash table support. The size of the hash table must fit
1007 within a page. */
1008
1009 #ifndef SHASH_SIZE
1010 #define SHASH_SIZE 1009
1011 #endif
1012
1013 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1014
1015 typedef struct shash {
1016 struct shash *next; /* next hash value */
1017 char *string; /* string we are hashing */
1018 symint_t len; /* string length */
1019 symint_t indx; /* index within string table */
1020 EXTR *esym_ptr; /* global symbol pointer */
1021 SYMR *sym_ptr; /* local symbol pointer */
1022 SYMR *end_ptr; /* symbol pointer to end block */
1023 tag_t *tag_ptr; /* tag pointer */
1024 PDR *proc_ptr; /* procedure descriptor pointer */
1025 } shash_t;
1026
1027
1028 /* Type hash table support. The size of the hash table must fit
1029 within a page with the other extended file descriptor information.
1030 Because unique types which are hashed are fewer in number than
1031 strings, we use a smaller hash value. */
1032
1033 #ifndef THASH_SIZE
1034 #define THASH_SIZE 113
1035 #endif
1036
1037 typedef struct thash {
1038 struct thash *next; /* next hash value */
1039 AUXU type; /* type we are hashing */
1040 symint_t indx; /* index within string table */
1041 } thash_t;
1042
1043
1044 /* Extended file descriptor that contains all of the support necessary
1045 to add things to each file separately. */
1046 typedef struct efdr {
1047 FDR fdr; /* File header to be written out */
1048 FDR *orig_fdr; /* original file header */
1049 char *name; /* filename */
1050 int name_len; /* length of the filename */
1051 symint_t void_type; /* aux. pointer to 'void' type */
1052 symint_t int_type; /* aux. pointer to 'int' type */
1053 scope_t *cur_scope; /* current nested scopes */
1054 symint_t file_index; /* current file number */
1055 int nested_scopes; /* # nested scopes */
1056 varray_t strings; /* local strings */
1057 varray_t symbols; /* local symbols */
1058 varray_t procs; /* procedures */
1059 varray_t aux_syms; /* auxiliary symbols */
1060 struct efdr *next_file; /* next file descriptor */
1061 /* string/type hash tables */
1062 shash_t **shash_head; /* string hash table */
1063 thash_t *thash_head[THASH_SIZE];
1064 } efdr_t;
1065
1066 /* Pre-initialized extended file structure. */
1067 static efdr_t init_file =
1068 {
1069 { /* FDR structure */
1070 #ifdef __alpha
1071 0, /* adr: memory address of beginning of file */
1072 0, /* cbLineOffset: byte offset from header for this file ln's */
1073 0, /* cbLine: size of lines for this file */
1074 0, /* cbSs: number of bytes in the ss */
1075 0, /* rss: file name (of source, if known) */
1076 0, /* issBase: file's string space */
1077 0, /* isymBase: beginning of symbols */
1078 0, /* csym: count file's of symbols */
1079 0, /* ilineBase: file's line symbols */
1080 0, /* cline: count of file's line symbols */
1081 0, /* ioptBase: file's optimization entries */
1082 0, /* copt: count of file's optimization entries */
1083 0, /* ipdFirst: start of procedures for this file */
1084 0, /* cpd: count of procedures for this file */
1085 0, /* iauxBase: file's auxiliary entries */
1086 0, /* caux: count of file's auxiliary entries */
1087 0, /* rfdBase: index into the file indirect table */
1088 0, /* crfd: count file indirect entries */
1089 langC, /* lang: language for this file */
1090 1, /* fMerge: whether this file can be merged */
1091 0, /* fReadin: true if read in (not just created) */
1092 #ifdef HOST_WORDS_BIG_ENDIAN
1093 1, /* fBigendian: if 1, compiled on big endian machine */
1094 #else
1095 0, /* fBigendian: if 1, compiled on big endian machine */
1096 #endif
1097 0, /* fTrim: whether the symbol table was trimmed */
1098 GLEVEL_2, /* glevel: level this file was compiled with */
1099 0, /* reserved: reserved for future use */
1100 #else
1101 0, /* adr: memory address of beginning of file */
1102 0, /* rss: file name (of source, if known) */
1103 0, /* issBase: file's string space */
1104 0, /* cbSs: number of bytes in the ss */
1105 0, /* isymBase: beginning of symbols */
1106 0, /* csym: count file's of symbols */
1107 0, /* ilineBase: file's line symbols */
1108 0, /* cline: count of file's line symbols */
1109 0, /* ioptBase: file's optimization entries */
1110 0, /* copt: count of file's optimization entries */
1111 0, /* ipdFirst: start of procedures for this file */
1112 0, /* cpd: count of procedures for this file */
1113 0, /* iauxBase: file's auxiliary entries */
1114 0, /* caux: count of file's auxiliary entries */
1115 0, /* rfdBase: index into the file indirect table */
1116 0, /* crfd: count file indirect entries */
1117 langC, /* lang: language for this file */
1118 1, /* fMerge: whether this file can be merged */
1119 0, /* fReadin: true if read in (not just created) */
1120 #ifdef HOST_WORDS_BIG_ENDIAN
1121 1, /* fBigendian: if 1, compiled on big endian machine */
1122 #else
1123 0, /* fBigendian: if 1, compiled on big endian machine */
1124 #endif
1125 GLEVEL_2, /* glevel: level this file was compiled with */
1126 0, /* reserved: reserved for future use */
1127 0, /* cbLineOffset: byte offset from header for this file ln's */
1128 0, /* cbLine: size of lines for this file */
1129 #endif
1130 },
1131
1132 (FDR *) 0, /* orig_fdr: original file header pointer */
1133 (char *) 0, /* name: pointer to filename */
1134 0, /* name_len: length of filename */
1135 0, /* void_type: ptr to aux node for void type */
1136 0, /* int_type: ptr to aux node for int type */
1137 (scope_t *) 0, /* cur_scope: current scope being processed */
1138 0, /* file_index: current file # */
1139 0, /* nested_scopes: # nested scopes */
1140 INIT_VARRAY (char), /* strings: local string varray */
1141 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1142 INIT_VARRAY (PDR), /* procs: procedure varray */
1143 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1144
1145 (struct efdr *) 0, /* next_file: next file structure */
1146
1147 (shash_t **) 0, /* shash_head: string hash table */
1148 { 0 }, /* thash_head: type hash table */
1149 };
1150
1151
1152 static efdr_t *first_file; /* first file descriptor */
1153 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1154
1155
1156 /* Union of various things that are held in pages. */
1157 typedef union page {
1158 char byte [ PAGE_SIZE ];
1159 unsigned char ubyte [ PAGE_SIZE ];
1160 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1161 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1162 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1163 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1164 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1165 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1166 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1167 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1168 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1169 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1170 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1171 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1172 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1173 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1174 } page_t;
1175
1176
1177 /* Structure holding allocation information for small sized structures. */
1178 typedef struct alloc_info {
1179 const char *alloc_name; /* name of this allocation type (must be first) */
1180 page_t *cur_page; /* current page being allocated from */
1181 small_free_t free_list; /* current free list if any */
1182 int unallocated; /* number of elements unallocated on page */
1183 int total_alloc; /* total number of allocations */
1184 int total_free; /* total number of frees */
1185 int total_pages; /* total number of pages allocated */
1186 } alloc_info_t;
1187
1188 /* Type information collected together. */
1189 typedef struct type_info {
1190 bt_t basic_type; /* basic type */
1191 coff_type_t orig_type; /* original COFF-based type */
1192 int num_tq; /* # type qualifiers */
1193 int num_dims; /* # dimensions */
1194 int num_sizes; /* # sizes */
1195 int extra_sizes; /* # extra sizes not tied with dims */
1196 tag_t * tag_ptr; /* tag pointer */
1197 int bitfield; /* symbol is a bitfield */
1198 int unknown_tag; /* this is an unknown tag */
1199 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1200 symint_t dimensions [N_TQ]; /* dimensions for each array */
1201 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1202 struct/union/enum + bitfield size */
1203 } type_info_t;
1204
1205 /* Pre-initialized type_info struct. */
1206 static type_info_t type_info_init = {
1207 bt_Nil, /* basic type */
1208 T_NULL, /* original COFF-based type */
1209 0, /* # type qualifiers */
1210 0, /* # dimensions */
1211 0, /* # sizes */
1212 0, /* sizes not tied with dims */
1213 NULL, /* ptr to tag */
1214 0, /* bitfield */
1215 0, /* unknown tag */
1216 { /* type qualifiers */
1217 tq_Nil,
1218 tq_Nil,
1219 tq_Nil,
1220 tq_Nil,
1221 tq_Nil,
1222 tq_Nil,
1223 },
1224 { /* dimensions */
1225 0,
1226 0,
1227 0,
1228 0,
1229 0,
1230 0
1231 },
1232 { /* sizes */
1233 0,
1234 0,
1235 0,
1236 0,
1237 0,
1238 0,
1239 0,
1240 0,
1241 },
1242 };
1243
1244
1245 /* Global virtual arrays & hash table for external strings as well as
1246 for the tags table and global tables for file descriptors, and
1247 dense numbers. */
1248
1249 static varray_t file_desc = INIT_VARRAY (efdr_t);
1250 static varray_t dense_num = INIT_VARRAY (DNR);
1251 static varray_t tag_strings = INIT_VARRAY (char);
1252 static varray_t ext_strings = INIT_VARRAY (char);
1253 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1254
1255 static shash_t *orig_str_hash[SHASH_SIZE];
1256 static shash_t *ext_str_hash [SHASH_SIZE];
1257 static shash_t *tag_hash [SHASH_SIZE];
1258
1259 /* Static types for int and void. Also, remember the last function's
1260 type (which is set up when we encounter the declaration for the
1261 function, and used when the end block for the function is emitted. */
1262
1263 static type_info_t int_type_info;
1264 static type_info_t void_type_info;
1265 static type_info_t last_func_type_info;
1266 static EXTR *last_func_eptr;
1267
1268
1269 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1270 really should use bt_Void, but this causes the current ecoff GDB to
1271 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1272 2.0) doesn't understand it, even though the compiler generates it.
1273 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1274 suite, but for now go with what works. */
1275
1276 static const bt_t map_coff_types[ (int) T_MAX ] = {
1277 bt_Nil, /* T_NULL */
1278 bt_Nil, /* T_ARG */
1279 bt_Char, /* T_CHAR */
1280 bt_Short, /* T_SHORT */
1281 bt_Int, /* T_INT */
1282 bt_Long, /* T_LONG */
1283 bt_Float, /* T_FLOAT */
1284 bt_Double, /* T_DOUBLE */
1285 bt_Struct, /* T_STRUCT */
1286 bt_Union, /* T_UNION */
1287 bt_Enum, /* T_ENUM */
1288 bt_Enum, /* T_MOE */
1289 bt_UChar, /* T_UCHAR */
1290 bt_UShort, /* T_USHORT */
1291 bt_UInt, /* T_UINT */
1292 bt_ULong /* T_ULONG */
1293 };
1294
1295 /* Convert COFF storage class to ECOFF storage class. */
1296 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1297 sc_Nil, /* 0: C_NULL */
1298 sc_Abs, /* 1: C_AUTO auto var */
1299 sc_Undefined, /* 2: C_EXT external */
1300 sc_Data, /* 3: C_STAT static */
1301 sc_Register, /* 4: C_REG register */
1302 sc_Undefined, /* 5: C_EXTDEF ??? */
1303 sc_Text, /* 6: C_LABEL label */
1304 sc_Text, /* 7: C_ULABEL user label */
1305 sc_Info, /* 8: C_MOS member of struct */
1306 sc_Abs, /* 9: C_ARG argument */
1307 sc_Info, /* 10: C_STRTAG struct tag */
1308 sc_Info, /* 11: C_MOU member of union */
1309 sc_Info, /* 12: C_UNTAG union tag */
1310 sc_Info, /* 13: C_TPDEF typedef */
1311 sc_Data, /* 14: C_USTATIC ??? */
1312 sc_Info, /* 15: C_ENTAG enum tag */
1313 sc_Info, /* 16: C_MOE member of enum */
1314 sc_Register, /* 17: C_REGPARM register parameter */
1315 sc_Bits, /* 18; C_FIELD bitfield */
1316 sc_Nil, /* 19 */
1317 sc_Nil, /* 20 */
1318 sc_Nil, /* 21 */
1319 sc_Nil, /* 22 */
1320 sc_Nil, /* 23 */
1321 sc_Nil, /* 24 */
1322 sc_Nil, /* 25 */
1323 sc_Nil, /* 26 */
1324 sc_Nil, /* 27 */
1325 sc_Nil, /* 28 */
1326 sc_Nil, /* 29 */
1327 sc_Nil, /* 30 */
1328 sc_Nil, /* 31 */
1329 sc_Nil, /* 32 */
1330 sc_Nil, /* 33 */
1331 sc_Nil, /* 34 */
1332 sc_Nil, /* 35 */
1333 sc_Nil, /* 36 */
1334 sc_Nil, /* 37 */
1335 sc_Nil, /* 38 */
1336 sc_Nil, /* 39 */
1337 sc_Nil, /* 40 */
1338 sc_Nil, /* 41 */
1339 sc_Nil, /* 42 */
1340 sc_Nil, /* 43 */
1341 sc_Nil, /* 44 */
1342 sc_Nil, /* 45 */
1343 sc_Nil, /* 46 */
1344 sc_Nil, /* 47 */
1345 sc_Nil, /* 48 */
1346 sc_Nil, /* 49 */
1347 sc_Nil, /* 50 */
1348 sc_Nil, /* 51 */
1349 sc_Nil, /* 52 */
1350 sc_Nil, /* 53 */
1351 sc_Nil, /* 54 */
1352 sc_Nil, /* 55 */
1353 sc_Nil, /* 56 */
1354 sc_Nil, /* 57 */
1355 sc_Nil, /* 58 */
1356 sc_Nil, /* 59 */
1357 sc_Nil, /* 60 */
1358 sc_Nil, /* 61 */
1359 sc_Nil, /* 62 */
1360 sc_Nil, /* 63 */
1361 sc_Nil, /* 64 */
1362 sc_Nil, /* 65 */
1363 sc_Nil, /* 66 */
1364 sc_Nil, /* 67 */
1365 sc_Nil, /* 68 */
1366 sc_Nil, /* 69 */
1367 sc_Nil, /* 70 */
1368 sc_Nil, /* 71 */
1369 sc_Nil, /* 72 */
1370 sc_Nil, /* 73 */
1371 sc_Nil, /* 74 */
1372 sc_Nil, /* 75 */
1373 sc_Nil, /* 76 */
1374 sc_Nil, /* 77 */
1375 sc_Nil, /* 78 */
1376 sc_Nil, /* 79 */
1377 sc_Nil, /* 80 */
1378 sc_Nil, /* 81 */
1379 sc_Nil, /* 82 */
1380 sc_Nil, /* 83 */
1381 sc_Nil, /* 84 */
1382 sc_Nil, /* 85 */
1383 sc_Nil, /* 86 */
1384 sc_Nil, /* 87 */
1385 sc_Nil, /* 88 */
1386 sc_Nil, /* 89 */
1387 sc_Nil, /* 90 */
1388 sc_Nil, /* 91 */
1389 sc_Nil, /* 92 */
1390 sc_Nil, /* 93 */
1391 sc_Nil, /* 94 */
1392 sc_Nil, /* 95 */
1393 sc_Nil, /* 96 */
1394 sc_Nil, /* 97 */
1395 sc_Nil, /* 98 */
1396 sc_Nil, /* 99 */
1397 sc_Text, /* 100: C_BLOCK block start/end */
1398 sc_Text, /* 101: C_FCN function start/end */
1399 sc_Info, /* 102: C_EOS end of struct/union/enum */
1400 sc_Nil, /* 103: C_FILE file start */
1401 sc_Nil, /* 104: C_LINE line number */
1402 sc_Nil, /* 105: C_ALIAS combined type info */
1403 sc_Nil, /* 106: C_HIDDEN ??? */
1404 };
1405
1406 /* Convert COFF storage class to ECOFF symbol type. */
1407 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1408 st_Nil, /* 0: C_NULL */
1409 st_Local, /* 1: C_AUTO auto var */
1410 st_Global, /* 2: C_EXT external */
1411 st_Static, /* 3: C_STAT static */
1412 st_Local, /* 4: C_REG register */
1413 st_Global, /* 5: C_EXTDEF ??? */
1414 st_Label, /* 6: C_LABEL label */
1415 st_Label, /* 7: C_ULABEL user label */
1416 st_Member, /* 8: C_MOS member of struct */
1417 st_Param, /* 9: C_ARG argument */
1418 st_Block, /* 10: C_STRTAG struct tag */
1419 st_Member, /* 11: C_MOU member of union */
1420 st_Block, /* 12: C_UNTAG union tag */
1421 st_Typedef, /* 13: C_TPDEF typedef */
1422 st_Static, /* 14: C_USTATIC ??? */
1423 st_Block, /* 15: C_ENTAG enum tag */
1424 st_Member, /* 16: C_MOE member of enum */
1425 st_Param, /* 17: C_REGPARM register parameter */
1426 st_Member, /* 18; C_FIELD bitfield */
1427 st_Nil, /* 19 */
1428 st_Nil, /* 20 */
1429 st_Nil, /* 21 */
1430 st_Nil, /* 22 */
1431 st_Nil, /* 23 */
1432 st_Nil, /* 24 */
1433 st_Nil, /* 25 */
1434 st_Nil, /* 26 */
1435 st_Nil, /* 27 */
1436 st_Nil, /* 28 */
1437 st_Nil, /* 29 */
1438 st_Nil, /* 30 */
1439 st_Nil, /* 31 */
1440 st_Nil, /* 32 */
1441 st_Nil, /* 33 */
1442 st_Nil, /* 34 */
1443 st_Nil, /* 35 */
1444 st_Nil, /* 36 */
1445 st_Nil, /* 37 */
1446 st_Nil, /* 38 */
1447 st_Nil, /* 39 */
1448 st_Nil, /* 40 */
1449 st_Nil, /* 41 */
1450 st_Nil, /* 42 */
1451 st_Nil, /* 43 */
1452 st_Nil, /* 44 */
1453 st_Nil, /* 45 */
1454 st_Nil, /* 46 */
1455 st_Nil, /* 47 */
1456 st_Nil, /* 48 */
1457 st_Nil, /* 49 */
1458 st_Nil, /* 50 */
1459 st_Nil, /* 51 */
1460 st_Nil, /* 52 */
1461 st_Nil, /* 53 */
1462 st_Nil, /* 54 */
1463 st_Nil, /* 55 */
1464 st_Nil, /* 56 */
1465 st_Nil, /* 57 */
1466 st_Nil, /* 58 */
1467 st_Nil, /* 59 */
1468 st_Nil, /* 60 */
1469 st_Nil, /* 61 */
1470 st_Nil, /* 62 */
1471 st_Nil, /* 63 */
1472 st_Nil, /* 64 */
1473 st_Nil, /* 65 */
1474 st_Nil, /* 66 */
1475 st_Nil, /* 67 */
1476 st_Nil, /* 68 */
1477 st_Nil, /* 69 */
1478 st_Nil, /* 70 */
1479 st_Nil, /* 71 */
1480 st_Nil, /* 72 */
1481 st_Nil, /* 73 */
1482 st_Nil, /* 74 */
1483 st_Nil, /* 75 */
1484 st_Nil, /* 76 */
1485 st_Nil, /* 77 */
1486 st_Nil, /* 78 */
1487 st_Nil, /* 79 */
1488 st_Nil, /* 80 */
1489 st_Nil, /* 81 */
1490 st_Nil, /* 82 */
1491 st_Nil, /* 83 */
1492 st_Nil, /* 84 */
1493 st_Nil, /* 85 */
1494 st_Nil, /* 86 */
1495 st_Nil, /* 87 */
1496 st_Nil, /* 88 */
1497 st_Nil, /* 89 */
1498 st_Nil, /* 90 */
1499 st_Nil, /* 91 */
1500 st_Nil, /* 92 */
1501 st_Nil, /* 93 */
1502 st_Nil, /* 94 */
1503 st_Nil, /* 95 */
1504 st_Nil, /* 96 */
1505 st_Nil, /* 97 */
1506 st_Nil, /* 98 */
1507 st_Nil, /* 99 */
1508 st_Block, /* 100: C_BLOCK block start/end */
1509 st_Proc, /* 101: C_FCN function start/end */
1510 st_End, /* 102: C_EOS end of struct/union/enum */
1511 st_File, /* 103: C_FILE file start */
1512 st_Nil, /* 104: C_LINE line number */
1513 st_Nil, /* 105: C_ALIAS combined type info */
1514 st_Nil, /* 106: C_HIDDEN ??? */
1515 };
1516
1517 /* Map COFF derived types to ECOFF type qualifiers. */
1518 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1519 tq_Nil, /* 0: DT_NON no more qualifiers */
1520 tq_Ptr, /* 1: DT_PTR pointer */
1521 tq_Proc, /* 2: DT_FCN function */
1522 tq_Array, /* 3: DT_ARY array */
1523 };
1524
1525
1526 /* Keep track of different sized allocation requests. */
1527 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1528
1529 \f
1530 /* Pointers and such to the original symbol table that is read in. */
1531 static struct filehdr orig_file_header; /* global object file header */
1532
1533 static HDRR orig_sym_hdr; /* symbolic header on input */
1534 static char *orig_linenum; /* line numbers */
1535 static DNR *orig_dense; /* dense numbers */
1536 static PDR *orig_procs; /* procedures */
1537 static SYMR *orig_local_syms; /* local symbols */
1538 static OPTR *orig_opt_syms; /* optimization symbols */
1539 static AUXU *orig_aux_syms; /* auxiliary symbols */
1540 static char *orig_local_strs; /* local strings */
1541 static char *orig_ext_strs; /* external strings */
1542 static FDR *orig_files; /* file descriptors */
1543 static symint_t *orig_rfds; /* relative file desc's */
1544 static EXTR *orig_ext_syms; /* external symbols */
1545
1546 /* Macros to convert an index into a given object within the original
1547 symbol table. */
1548 #define CHECK(num,max,str) \
1549 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1550
1551 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1552 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1553 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1554 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1555 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1556 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1557 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1558 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1559 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1560 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1561 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1562
1563 /* Various other statics. */
1564 static HDRR symbolic_header; /* symbolic header */
1565 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1566 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1567 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1568 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1569 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1570 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1571 static long file_offset = 0; /* current file offset */
1572 static long max_file_offset = 0; /* maximum file offset */
1573 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1574 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1575 static char *progname = (char *) 0; /* program name for errors */
1576 static const char *input_name = "stdin"; /* name of input file */
1577 static char *object_name = (char *) 0; /* tmp. name of object file */
1578 static char *obj_in_name = (char *) 0; /* name of input object file */
1579 static char *cur_line_start = (char *) 0; /* current line read in */
1580 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1581 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1582 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1583 static long line_number = 0; /* current input line number */
1584 static int debug = 0; /* trace functions */
1585 static int version = 0; /* print version # */
1586 static int had_errors = 0; /* != 0 if errors were found */
1587 static int rename_output = 0; /* != 0 if rename output file*/
1588 static int delete_input = 0; /* != 0 if delete input after done */
1589 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1590
1591
1592 /* Pseudo symbol to use when putting stabs into the symbol table. */
1593 #ifndef STABS_SYMBOL
1594 #define STABS_SYMBOL "@stabs"
1595 #endif
1596
1597 static const char stabs_symbol[] = STABS_SYMBOL;
1598
1599 \f
1600 /* Forward reference for functions. See the definition for more details. */
1601
1602 #ifndef STATIC
1603 #define STATIC static
1604 #endif
1605
1606 STATIC int out_of_bounds PARAMS ((symint_t, symint_t, const char *, int));
1607
1608 STATIC shash_t *hash_string PARAMS ((const char *,
1609 Ptrdiff_t,
1610 shash_t **,
1611 symint_t *));
1612
1613 STATIC symint_t add_string PARAMS ((varray_t *,
1614 shash_t **,
1615 const char *,
1616 const char *,
1617 shash_t **));
1618
1619 STATIC symint_t add_local_symbol
1620 PARAMS ((const char *,
1621 const char *,
1622 st_t,
1623 sc_t,
1624 symint_t,
1625 symint_t));
1626
1627 STATIC symint_t add_ext_symbol PARAMS ((EXTR *,
1628 int));
1629
1630 STATIC symint_t add_aux_sym_symint
1631 PARAMS ((symint_t));
1632
1633 STATIC symint_t add_aux_sym_rndx
1634 PARAMS ((int, symint_t));
1635
1636 STATIC symint_t add_aux_sym_tir PARAMS ((type_info_t *,
1637 hash_state_t,
1638 thash_t **));
1639
1640 STATIC tag_t * get_tag PARAMS ((const char *,
1641 const char *,
1642 symint_t,
1643 bt_t));
1644
1645 STATIC void add_unknown_tag PARAMS ((tag_t *));
1646
1647 STATIC void add_procedure PARAMS ((const char *,
1648 const char *));
1649
1650 STATIC void add_file PARAMS ((const char *,
1651 const char *));
1652
1653 STATIC void add_bytes PARAMS ((varray_t *,
1654 char *,
1655 Size_t));
1656
1657 STATIC void add_varray_page PARAMS ((varray_t *));
1658
1659 STATIC void update_headers PARAMS ((void));
1660
1661 STATIC void write_varray PARAMS ((varray_t *, off_t, const char *));
1662 STATIC void write_object PARAMS ((void));
1663 STATIC const char *st_to_string PARAMS ((st_t));
1664 STATIC const char *sc_to_string PARAMS ((sc_t));
1665 STATIC char *read_line PARAMS ((void));
1666 STATIC void parse_input PARAMS ((void));
1667 STATIC void mark_stabs PARAMS ((const char *));
1668 STATIC void parse_begin PARAMS ((const char *));
1669 STATIC void parse_bend PARAMS ((const char *));
1670 STATIC void parse_def PARAMS ((const char *));
1671 STATIC void parse_end PARAMS ((const char *));
1672 STATIC void parse_ent PARAMS ((const char *));
1673 STATIC void parse_file PARAMS ((const char *));
1674 STATIC void parse_stabs_common
1675 PARAMS ((const char *, const char *, const char *));
1676 STATIC void parse_stabs PARAMS ((const char *));
1677 STATIC void parse_stabn PARAMS ((const char *));
1678 STATIC page_t *read_seek PARAMS ((Size_t, off_t, const char *));
1679 STATIC void copy_object PARAMS ((void));
1680
1681 STATIC void catch_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
1682 STATIC page_t *allocate_page PARAMS ((void));
1683
1684 STATIC page_t *allocate_multiple_pages
1685 PARAMS ((Size_t));
1686
1687 STATIC void free_multiple_pages
1688 PARAMS ((page_t *, Size_t));
1689
1690 #ifndef MALLOC_CHECK
1691 STATIC page_t *allocate_cluster
1692 PARAMS ((Size_t));
1693 #endif
1694
1695 STATIC forward_t *allocate_forward PARAMS ((void));
1696 STATIC scope_t *allocate_scope PARAMS ((void));
1697 STATIC shash_t *allocate_shash PARAMS ((void));
1698 STATIC tag_t *allocate_tag PARAMS ((void));
1699 STATIC thash_t *allocate_thash PARAMS ((void));
1700 STATIC thead_t *allocate_thead PARAMS ((void));
1701 STATIC vlinks_t *allocate_vlinks PARAMS ((void));
1702
1703 STATIC void free_forward PARAMS ((forward_t *));
1704 STATIC void free_scope PARAMS ((scope_t *));
1705 STATIC void free_tag PARAMS ((tag_t *));
1706 STATIC void free_thead PARAMS ((thead_t *));
1707
1708 extern char *optarg;
1709 extern int optind;
1710 extern int opterr;
1711 \f
1712 /* List of assembler pseudo ops and beginning sequences that need
1713 special actions. Someday, this should be a hash table, and such,
1714 but for now a linear list of names and calls to memcmp will
1715 do...... */
1716
1717 typedef struct _pseudo_ops {
1718 const char *const name; /* pseudo-op in ascii */
1719 const int len; /* length of name to compare */
1720 void (*const func) PARAMS ((const char *)); /* function to handle line */
1721 } pseudo_ops_t;
1722
1723 static const pseudo_ops_t pseudo_ops[] = {
1724 { "#.def", sizeof("#.def")-1, parse_def },
1725 { "#.begin", sizeof("#.begin")-1, parse_begin },
1726 { "#.bend", sizeof("#.bend")-1, parse_bend },
1727 { ".end", sizeof(".end")-1, parse_end },
1728 { ".ent", sizeof(".ent")-1, parse_ent },
1729 { ".file", sizeof(".file")-1, parse_file },
1730 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1731 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1732 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1733 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1734 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1735 };
1736
1737 \f
1738 /* Add a page to a varray object. */
1739
1740 STATIC void
1741 add_varray_page (vp)
1742 varray_t *vp; /* varray to add page to */
1743 {
1744 vlinks_t *new_links = allocate_vlinks ();
1745
1746 #ifdef MALLOC_CHECK
1747 if (vp->object_size > 1)
1748 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1749 else
1750 #endif
1751 new_links->datum = allocate_page ();
1752
1753 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1754 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1755
1756 new_links->start_index = vp->num_allocated;
1757 vp->objects_last_page = 0;
1758
1759 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1760 vp->first = vp->last = new_links;
1761 else
1762 { /* 2nd or greater allocation */
1763 new_links->prev = vp->last;
1764 vp->last->next = new_links;
1765 vp->last = new_links;
1766 }
1767 }
1768
1769 \f
1770 /* Compute hash code (from tree.c) */
1771
1772 #define HASHBITS 30
1773
1774 STATIC shash_t *
1775 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1776 const char *text; /* ptr to text to hash */
1777 Ptrdiff_t hash_len; /* length of the text */
1778 shash_t **hash_tbl; /* hash table */
1779 symint_t *ret_hash_index; /* ptr to store hash index */
1780 {
1781 unsigned long hi;
1782 Ptrdiff_t i;
1783 shash_t *ptr;
1784 int first_ch = *text;
1785
1786 hi = hash_len;
1787 for (i = 0; i < hash_len; i++)
1788 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1789
1790 hi &= (1 << HASHBITS) - 1;
1791 hi %= SHASH_SIZE;
1792
1793 if (ret_hash_index != (symint_t *) 0)
1794 *ret_hash_index = hi;
1795
1796 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1797 if ((symint_t) hash_len == ptr->len
1798 && first_ch == ptr->string[0]
1799 && memcmp (text, ptr->string, hash_len) == 0)
1800 break;
1801
1802 return ptr;
1803 }
1804
1805 \f
1806 /* Add a string (and null pad) to one of the string tables. A
1807 consequence of hashing strings, is that we don't let strings
1808 cross page boundaries. The extra nulls will be ignored. */
1809
1810 STATIC symint_t
1811 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1812 varray_t *vp; /* string virtual array */
1813 shash_t **hash_tbl; /* ptr to hash table */
1814 const char *start; /* 1st byte in string */
1815 const char *end_p1; /* 1st byte after string */
1816 shash_t **ret_hash; /* return hash pointer */
1817 {
1818 Ptrdiff_t len = end_p1 - start;
1819 shash_t *hash_ptr;
1820 symint_t hi;
1821
1822 if (len >= (Ptrdiff_t) PAGE_USIZE)
1823 fatal ("string too big (%ld bytes)", (long) len);
1824
1825 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1826 if (hash_ptr == (shash_t *) 0)
1827 {
1828 char *p;
1829
1830 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1831 {
1832 vp->num_allocated
1833 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1834 add_varray_page (vp);
1835 }
1836
1837 hash_ptr = allocate_shash ();
1838 hash_ptr->next = hash_tbl[hi];
1839 hash_tbl[hi] = hash_ptr;
1840
1841 hash_ptr->len = len;
1842 hash_ptr->indx = vp->num_allocated;
1843 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1844
1845 vp->objects_last_page += len+1;
1846 vp->num_allocated += len+1;
1847
1848 while (len-- > 0)
1849 *p++ = *start++;
1850
1851 *p = '\0';
1852 }
1853
1854 if (ret_hash != (shash_t **) 0)
1855 *ret_hash = hash_ptr;
1856
1857 return hash_ptr->indx;
1858 }
1859
1860 \f
1861 /* Add a local symbol. */
1862
1863 STATIC symint_t
1864 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1865 const char *str_start; /* first byte in string */
1866 const char *str_end_p1; /* first byte after string */
1867 st_t type; /* symbol type */
1868 sc_t storage; /* storage class */
1869 symint_t value; /* value of symbol */
1870 symint_t indx; /* index to local/aux. syms */
1871 {
1872 symint_t ret;
1873 SYMR *psym;
1874 scope_t *pscope;
1875 thead_t *ptag_head;
1876 tag_t *ptag;
1877 tag_t *ptag_next;
1878 varray_t *vp = &cur_file_ptr->symbols;
1879 int scope_delta = 0;
1880 shash_t *hash_ptr = (shash_t *) 0;
1881
1882 if (vp->objects_last_page == vp->objects_per_page)
1883 add_varray_page (vp);
1884
1885 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1886
1887 psym->value = value;
1888 psym->st = (unsigned) type;
1889 psym->sc = (unsigned) storage;
1890 psym->index = indx;
1891 psym->iss = (str_start == (const char *) 0)
1892 ? 0
1893 : add_string (&cur_file_ptr->strings,
1894 &cur_file_ptr->shash_head[0],
1895 str_start,
1896 str_end_p1,
1897 &hash_ptr);
1898
1899 ret = vp->num_allocated++;
1900
1901 if (MIPS_IS_STAB (psym))
1902 return ret;
1903
1904 /* Save the symbol within the hash table if this is a static
1905 item, and it has a name. */
1906 if (hash_ptr != (shash_t *) 0
1907 && (type == st_Global || type == st_Static || type == st_Label
1908 || type == st_Proc || type == st_StaticProc))
1909 hash_ptr->sym_ptr = psym;
1910
1911 /* push or pop a scope if appropriate. */
1912 switch (type)
1913 {
1914 default:
1915 break;
1916
1917 case st_File: /* beginning of file */
1918 case st_Proc: /* procedure */
1919 case st_StaticProc: /* static procedure */
1920 case st_Block: /* begin scope */
1921 pscope = allocate_scope ();
1922 pscope->prev = cur_file_ptr->cur_scope;
1923 pscope->lsym = psym;
1924 pscope->lnumber = ret;
1925 pscope->type = type;
1926 cur_file_ptr->cur_scope = pscope;
1927
1928 if (type != st_File)
1929 scope_delta = 1;
1930
1931 /* For every block type except file, struct, union, or
1932 enumeration blocks, push a level on the tag stack. We omit
1933 file types, so that tags can span file boundaries. */
1934 if (type != st_File && storage != sc_Info)
1935 {
1936 ptag_head = allocate_thead ();
1937 ptag_head->first_tag = 0;
1938 ptag_head->prev = cur_tag_head;
1939 cur_tag_head = ptag_head;
1940 }
1941 break;
1942
1943 case st_End:
1944 pscope = cur_file_ptr->cur_scope;
1945 if (pscope == (scope_t *) 0)
1946 error ("internal error, too many st_End's");
1947
1948 else
1949 {
1950 st_t begin_type = (st_t) pscope->lsym->st;
1951
1952 if (begin_type != st_File)
1953 scope_delta = -1;
1954
1955 /* Except for file, structure, union, or enumeration end
1956 blocks remove all tags created within this scope. */
1957 if (begin_type != st_File && storage != sc_Info)
1958 {
1959 ptag_head = cur_tag_head;
1960 cur_tag_head = ptag_head->prev;
1961
1962 for (ptag = ptag_head->first_tag;
1963 ptag != (tag_t *) 0;
1964 ptag = ptag_next)
1965 {
1966 if (ptag->forward_ref != (forward_t *) 0)
1967 add_unknown_tag (ptag);
1968
1969 ptag_next = ptag->same_block;
1970 ptag->hash_ptr->tag_ptr = ptag->same_name;
1971 free_tag (ptag);
1972 }
1973
1974 free_thead (ptag_head);
1975 }
1976
1977 cur_file_ptr->cur_scope = pscope->prev;
1978 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1979
1980 if (storage != sc_Info)
1981 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1982
1983 if (begin_type == st_File || begin_type == st_Block)
1984 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1985
1986 /* Functions push two or more aux words as follows:
1987 1st word: index+1 of the end symbol
1988 2nd word: type of the function (plus any aux words needed).
1989 Also, tie the external pointer back to the function begin symbol. */
1990 else
1991 {
1992 symint_t type;
1993 pscope->lsym->index = add_aux_sym_symint (ret+1);
1994 type = add_aux_sym_tir (&last_func_type_info,
1995 hash_no,
1996 &cur_file_ptr->thash_head[0]);
1997 if (last_func_eptr)
1998 {
1999 last_func_eptr->ifd = cur_file_ptr->file_index;
2000
2001 /* The index for an external st_Proc symbol is the index
2002 of the st_Proc symbol in the local symbol table. */
2003 last_func_eptr->asym.index = psym->index;
2004 }
2005 }
2006
2007 free_scope (pscope);
2008 }
2009 }
2010
2011 cur_file_ptr->nested_scopes += scope_delta;
2012
2013 if (debug && type != st_File
2014 && (debug > 2 || type == st_Block || type == st_End
2015 || type == st_Proc || type == st_StaticProc))
2016 {
2017 const char *sc_str = sc_to_string (storage);
2018 const char *st_str = st_to_string (type);
2019 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2020
2021 fprintf (stderr,
2022 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2023 value, depth, sc_str);
2024
2025 if (str_start && str_end_p1 - str_start > 0)
2026 fprintf (stderr, " st= %-11s name= %.*s\n",
2027 st_str, (int) (str_end_p1 - str_start), str_start);
2028 else
2029 {
2030 Size_t len = strlen (st_str);
2031 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2032 }
2033 }
2034
2035 return ret;
2036 }
2037
2038 \f
2039 /* Add an external symbol. */
2040
2041 STATIC symint_t
2042 add_ext_symbol (esym, ifd)
2043 EXTR *esym; /* symbol pointer */
2044 int ifd; /* file index */
2045 {
2046 const char *str_start; /* first byte in string */
2047 const char *str_end_p1; /* first byte after string */
2048 EXTR *psym;
2049 varray_t *vp = &ext_symbols;
2050 shash_t *hash_ptr = (shash_t *) 0;
2051
2052 str_start = ORIG_ESTRS (esym->asym.iss);
2053 str_end_p1 = str_start + strlen (str_start);
2054
2055 if (debug > 1)
2056 {
2057 long value = esym->asym.value;
2058 const char *sc_str = sc_to_string (esym->asym.sc);
2059 const char *st_str = st_to_string (esym->asym.st);
2060
2061 fprintf (stderr,
2062 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2063 value, ifd, sc_str);
2064
2065 if (str_start && str_end_p1 - str_start > 0)
2066 fprintf (stderr, " st= %-11s name= %.*s\n",
2067 st_str, (int) (str_end_p1 - str_start), str_start);
2068 else
2069 fprintf (stderr, " st= %s\n", st_str);
2070 }
2071
2072 if (vp->objects_last_page == vp->objects_per_page)
2073 add_varray_page (vp);
2074
2075 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2076
2077 *psym = *esym;
2078 psym->ifd = ifd;
2079 psym->asym.index = indexNil;
2080 psym->asym.iss = (str_start == (const char *) 0)
2081 ? 0
2082 : add_string (&ext_strings,
2083 &ext_str_hash[0],
2084 str_start,
2085 str_end_p1,
2086 &hash_ptr);
2087
2088 hash_ptr->esym_ptr = psym;
2089 return vp->num_allocated++;
2090 }
2091
2092 \f
2093 /* Add an auxiliary symbol (passing a symint). */
2094
2095 STATIC symint_t
2096 add_aux_sym_symint (aux_word)
2097 symint_t aux_word; /* auxiliary information word */
2098 {
2099 AUXU *aux_ptr;
2100 efdr_t *file_ptr = cur_file_ptr;
2101 varray_t *vp = &file_ptr->aux_syms;
2102
2103 if (vp->objects_last_page == vp->objects_per_page)
2104 add_varray_page (vp);
2105
2106 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2107 aux_ptr->isym = aux_word;
2108
2109 return vp->num_allocated++;
2110 }
2111
2112
2113 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2114
2115 STATIC symint_t
2116 add_aux_sym_rndx (file_index, sym_index)
2117 int file_index;
2118 symint_t sym_index;
2119 {
2120 AUXU *aux_ptr;
2121 efdr_t *file_ptr = cur_file_ptr;
2122 varray_t *vp = &file_ptr->aux_syms;
2123
2124 if (vp->objects_last_page == vp->objects_per_page)
2125 add_varray_page (vp);
2126
2127 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2128 aux_ptr->rndx.rfd = file_index;
2129 aux_ptr->rndx.index = sym_index;
2130
2131 return vp->num_allocated++;
2132 }
2133
2134 \f
2135 /* Add an auxiliary symbol (passing the basic type and possibly
2136 type qualifiers). */
2137
2138 STATIC symint_t
2139 add_aux_sym_tir (t, state, hash_tbl)
2140 type_info_t *t; /* current type information */
2141 hash_state_t state; /* whether to hash type or not */
2142 thash_t **hash_tbl; /* pointer to hash table to use */
2143 {
2144 AUXU *aux_ptr;
2145 efdr_t *file_ptr = cur_file_ptr;
2146 varray_t *vp = &file_ptr->aux_syms;
2147 static AUXU init_aux;
2148 symint_t ret;
2149 int i;
2150 AUXU aux;
2151
2152 aux = init_aux;
2153 aux.ti.bt = (int) t->basic_type;
2154 aux.ti.continued = 0;
2155 aux.ti.fBitfield = t->bitfield;
2156
2157 aux.ti.tq0 = (int) t->type_qualifiers[0];
2158 aux.ti.tq1 = (int) t->type_qualifiers[1];
2159 aux.ti.tq2 = (int) t->type_qualifiers[2];
2160 aux.ti.tq3 = (int) t->type_qualifiers[3];
2161 aux.ti.tq4 = (int) t->type_qualifiers[4];
2162 aux.ti.tq5 = (int) t->type_qualifiers[5];
2163
2164
2165 /* For anything that adds additional information, we must not hash,
2166 so check here, and reset our state. */
2167
2168 if (state != hash_no
2169 && (t->type_qualifiers[0] == tq_Array
2170 || t->type_qualifiers[1] == tq_Array
2171 || t->type_qualifiers[2] == tq_Array
2172 || t->type_qualifiers[3] == tq_Array
2173 || t->type_qualifiers[4] == tq_Array
2174 || t->type_qualifiers[5] == tq_Array
2175 || t->basic_type == bt_Struct
2176 || t->basic_type == bt_Union
2177 || t->basic_type == bt_Enum
2178 || t->bitfield
2179 || t->num_dims > 0))
2180 state = hash_no;
2181
2182 /* See if we can hash this type, and save some space, but some types
2183 can't be hashed (because they contain arrays or continuations),
2184 and others can be put into the hash list, but cannot use existing
2185 types because other aux entries precede this one. */
2186
2187 if (state != hash_no)
2188 {
2189 thash_t *hash_ptr;
2190 symint_t hi;
2191
2192 hi = aux.isym & ((1 << HASHBITS) - 1);
2193 hi %= THASH_SIZE;
2194
2195 for (hash_ptr = hash_tbl[hi];
2196 hash_ptr != (thash_t *) 0;
2197 hash_ptr = hash_ptr->next)
2198 {
2199 if (aux.isym == hash_ptr->type.isym)
2200 break;
2201 }
2202
2203 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2204 return hash_ptr->indx;
2205
2206 if (hash_ptr == (thash_t *) 0)
2207 {
2208 hash_ptr = allocate_thash ();
2209 hash_ptr->next = hash_tbl[hi];
2210 hash_ptr->type = aux;
2211 hash_ptr->indx = vp->num_allocated;
2212 hash_tbl[hi] = hash_ptr;
2213 }
2214 }
2215
2216 /* Everything is set up, add the aux symbol. */
2217 if (vp->objects_last_page == vp->objects_per_page)
2218 add_varray_page (vp);
2219
2220 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2221 *aux_ptr = aux;
2222
2223 ret = vp->num_allocated++;
2224
2225 /* Add bitfield length if it exists.
2226
2227 NOTE: Mips documentation claims bitfield goes at the end of the
2228 AUX record, but the DECstation compiler emits it here.
2229 (This would only make a difference for enum bitfields.)
2230
2231 Also note: We use the last size given since gcc may emit 2
2232 for an enum bitfield. */
2233
2234 if (t->bitfield)
2235 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2236
2237
2238 /* Add tag information if needed. Structure, union, and enum
2239 references add 2 aux symbols: a [file index, symbol index]
2240 pointer to the structure type, and the current file index. */
2241
2242 if (t->basic_type == bt_Struct
2243 || t->basic_type == bt_Union
2244 || t->basic_type == bt_Enum)
2245 {
2246 symint_t file_index = t->tag_ptr->ifd;
2247 symint_t sym_index = t->tag_ptr->indx;
2248
2249 if (t->unknown_tag)
2250 {
2251 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2252 (void) add_aux_sym_symint ((symint_t)-1);
2253 }
2254 else if (sym_index != indexNil)
2255 {
2256 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2257 (void) add_aux_sym_symint (file_index);
2258 }
2259 else
2260 {
2261 forward_t *forward_ref = allocate_forward ();
2262
2263 forward_ref->type_ptr = aux_ptr;
2264 forward_ref->next = t->tag_ptr->forward_ref;
2265 t->tag_ptr->forward_ref = forward_ref;
2266
2267 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2268 forward_ref->index_ptr
2269 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2270
2271 (void) add_aux_sym_symint (file_index);
2272 forward_ref->ifd_ptr
2273 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2274 }
2275 }
2276
2277 /* Add information about array bounds if they exist. */
2278 for (i = 0; i < t->num_dims; i++)
2279 {
2280 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2281 cur_file_ptr->int_type);
2282
2283 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2284 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2285 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2286 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2287 ? 0
2288 : (t->sizes[i] * 8) / t->dimensions[i]);
2289 };
2290
2291 /* NOTE: Mips documentation claims that the bitfield width goes here.
2292 But it needs to be emitted earlier. */
2293
2294 return ret;
2295 }
2296
2297 \f
2298 /* Add a tag to the tag table (unless it already exists). */
2299
2300 STATIC tag_t *
2301 get_tag (tag_start, tag_end_p1, indx, basic_type)
2302 const char *tag_start; /* 1st byte of tag name */
2303 const char *tag_end_p1; /* 1st byte after tag name */
2304 symint_t indx; /* index of tag start block */
2305 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2306 {
2307 shash_t *hash_ptr;
2308 tag_t *tag_ptr;
2309 hash_ptr = hash_string (tag_start,
2310 tag_end_p1 - tag_start,
2311 &tag_hash[0],
2312 (symint_t *) 0);
2313
2314 if (hash_ptr != (shash_t *) 0
2315 && hash_ptr->tag_ptr != (tag_t *) 0)
2316 {
2317 tag_ptr = hash_ptr->tag_ptr;
2318 if (indx != indexNil)
2319 {
2320 tag_ptr->basic_type = basic_type;
2321 tag_ptr->ifd = cur_file_ptr->file_index;
2322 tag_ptr->indx = indx;
2323 }
2324 return tag_ptr;
2325 }
2326
2327 (void) add_string (&tag_strings,
2328 &tag_hash[0],
2329 tag_start,
2330 tag_end_p1,
2331 &hash_ptr);
2332
2333 tag_ptr = allocate_tag ();
2334 tag_ptr->forward_ref = (forward_t *) 0;
2335 tag_ptr->hash_ptr = hash_ptr;
2336 tag_ptr->same_name = hash_ptr->tag_ptr;
2337 tag_ptr->basic_type = basic_type;
2338 tag_ptr->indx = indx;
2339 tag_ptr->ifd = (indx == indexNil
2340 ? (symint_t) -1 : cur_file_ptr->file_index);
2341 tag_ptr->same_block = cur_tag_head->first_tag;
2342
2343 cur_tag_head->first_tag = tag_ptr;
2344 hash_ptr->tag_ptr = tag_ptr;
2345
2346 return tag_ptr;
2347 }
2348
2349 \f
2350 /* Add an unknown {struct, union, enum} tag. */
2351
2352 STATIC void
2353 add_unknown_tag (ptag)
2354 tag_t *ptag; /* pointer to tag information */
2355 {
2356 shash_t *hash_ptr = ptag->hash_ptr;
2357 char *name_start = hash_ptr->string;
2358 char *name_end_p1 = name_start + hash_ptr->len;
2359 forward_t *f_next = ptag->forward_ref;
2360 forward_t *f_cur;
2361 int sym_index;
2362 int file_index = cur_file_ptr->file_index;
2363
2364 if (debug > 1)
2365 {
2366 const char *agg_type = "{unknown aggregate type}";
2367 switch (ptag->basic_type)
2368 {
2369 case bt_Struct: agg_type = "struct"; break;
2370 case bt_Union: agg_type = "union"; break;
2371 case bt_Enum: agg_type = "enum"; break;
2372 default: break;
2373 }
2374
2375 fprintf (stderr, "unknown %s %.*s found\n",
2376 agg_type, (int) hash_ptr->len, name_start);
2377 }
2378
2379 sym_index = add_local_symbol (name_start,
2380 name_end_p1,
2381 st_Block,
2382 sc_Info,
2383 (symint_t) 0,
2384 (symint_t) 0);
2385
2386 (void) add_local_symbol (name_start,
2387 name_end_p1,
2388 st_End,
2389 sc_Info,
2390 (symint_t) 0,
2391 (symint_t) 0);
2392
2393 while (f_next != (forward_t *) 0)
2394 {
2395 f_cur = f_next;
2396 f_next = f_next->next;
2397
2398 f_cur->ifd_ptr->isym = file_index;
2399 f_cur->index_ptr->rndx.index = sym_index;
2400
2401 free_forward (f_cur);
2402 }
2403
2404 return;
2405 }
2406
2407 \f
2408 /* Add a procedure to the current file's list of procedures, and record
2409 this is the current procedure. If the assembler created a PDR for
2410 this procedure, use that to initialize the current PDR. */
2411
2412 STATIC void
2413 add_procedure (func_start, func_end_p1)
2414 const char *func_start; /* 1st byte of func name */
2415 const char *func_end_p1; /* 1st byte after func name */
2416 {
2417 PDR *new_proc_ptr;
2418 efdr_t *file_ptr = cur_file_ptr;
2419 varray_t *vp = &file_ptr->procs;
2420 symint_t value = 0;
2421 st_t proc_type = st_Proc;
2422 shash_t *shash_ptr = hash_string (func_start,
2423 func_end_p1 - func_start,
2424 &orig_str_hash[0],
2425 (symint_t *) 0);
2426
2427 if (debug)
2428 fputc ('\n', stderr);
2429
2430 if (vp->objects_last_page == vp->objects_per_page)
2431 add_varray_page (vp);
2432
2433 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2434
2435 vp->num_allocated++;
2436
2437
2438 /* Did the assembler create this procedure? If so, get the PDR information. */
2439 cur_oproc_ptr = (PDR *) 0;
2440 if (shash_ptr != (shash_t *) 0)
2441 {
2442 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2443 SYMR *sym_ptr = shash_ptr->sym_ptr;
2444
2445 if (old_proc_ptr != (PDR *) 0
2446 && sym_ptr != (SYMR *) 0
2447 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2448 {
2449 cur_oproc_begin = sym_ptr;
2450 cur_oproc_end = shash_ptr->end_ptr;
2451 value = sym_ptr->value;
2452
2453 cur_oproc_ptr = old_proc_ptr;
2454 proc_type = (st_t) sym_ptr->st;
2455 *new_proc_ptr = *old_proc_ptr; /* initialize */
2456 }
2457 }
2458
2459 if (cur_oproc_ptr == (PDR *) 0)
2460 error ("did not find a PDR block for %.*s",
2461 (int) (func_end_p1 - func_start), func_start);
2462
2463 /* Determine the start of symbols. */
2464 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2465
2466 /* Push the start of the function. */
2467 (void) add_local_symbol (func_start, func_end_p1,
2468 proc_type, sc_Text,
2469 value,
2470 (symint_t) 0);
2471 }
2472
2473 \f
2474 /* Add a new filename, and set up all of the file relative
2475 virtual arrays (strings, symbols, aux syms, etc.). Record
2476 where the current file structure lives. */
2477
2478 STATIC void
2479 add_file (file_start, file_end_p1)
2480 const char *file_start; /* first byte in string */
2481 const char *file_end_p1; /* first byte after string */
2482 {
2483 static char zero_bytes[2] = { '\0', '\0' };
2484
2485 Ptrdiff_t len = file_end_p1 - file_start;
2486 int first_ch = *file_start;
2487 efdr_t *file_ptr;
2488
2489 if (debug)
2490 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2491
2492 /* See if the file has already been created. */
2493 for (file_ptr = first_file;
2494 file_ptr != (efdr_t *) 0;
2495 file_ptr = file_ptr->next_file)
2496 {
2497 if (first_ch == file_ptr->name[0]
2498 && file_ptr->name[len] == '\0'
2499 && memcmp (file_start, file_ptr->name, len) == 0)
2500 {
2501 cur_file_ptr = file_ptr;
2502 break;
2503 }
2504 }
2505
2506 /* If this is a new file, create it. */
2507 if (file_ptr == (efdr_t *) 0)
2508 {
2509 if (file_desc.objects_last_page == file_desc.objects_per_page)
2510 add_varray_page (&file_desc);
2511
2512 file_ptr = cur_file_ptr
2513 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2514 *file_ptr = init_file;
2515
2516 file_ptr->file_index = file_desc.num_allocated++;
2517
2518 /* Allocate the string hash table. */
2519 file_ptr->shash_head = (shash_t **) allocate_page ();
2520
2521 /* Make sure 0 byte in string table is null */
2522 add_string (&file_ptr->strings,
2523 &file_ptr->shash_head[0],
2524 &zero_bytes[0],
2525 &zero_bytes[0],
2526 (shash_t **) 0);
2527
2528 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2529 fatal ("filename goes over one page boundary");
2530
2531 /* Push the start of the filename. We assume that the filename
2532 will be stored at string offset 1. */
2533 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2534 (symint_t) 0, (symint_t) 0);
2535 file_ptr->fdr.rss = 1;
2536 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2537 file_ptr->name_len = file_end_p1 - file_start;
2538
2539 /* Update the linked list of file descriptors. */
2540 *last_file_ptr = file_ptr;
2541 last_file_ptr = &file_ptr->next_file;
2542
2543 /* Add void & int types to the file (void should be first to catch
2544 errant 0's within the index fields). */
2545 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2546 hash_yes,
2547 &cur_file_ptr->thash_head[0]);
2548
2549 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2550 hash_yes,
2551 &cur_file_ptr->thash_head[0]);
2552 }
2553 }
2554
2555 \f
2556 /* Add a stream of random bytes to a varray. */
2557
2558 STATIC void
2559 add_bytes (vp, input_ptr, nitems)
2560 varray_t *vp; /* virtual array to add too */
2561 char *input_ptr; /* start of the bytes */
2562 Size_t nitems; /* # items to move */
2563 {
2564 Size_t move_items;
2565 Size_t move_bytes;
2566 char *ptr;
2567
2568 while (nitems > 0)
2569 {
2570 if (vp->objects_last_page >= vp->objects_per_page)
2571 add_varray_page (vp);
2572
2573 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2574 move_items = vp->objects_per_page - vp->objects_last_page;
2575 if (move_items > nitems)
2576 move_items = nitems;
2577
2578 move_bytes = move_items * vp->object_size;
2579 nitems -= move_items;
2580
2581 if (move_bytes >= 32)
2582 {
2583 (void) memcpy (ptr, input_ptr, move_bytes);
2584 input_ptr += move_bytes;
2585 }
2586 else
2587 {
2588 while (move_bytes-- > 0)
2589 *ptr++ = *input_ptr++;
2590 }
2591 }
2592 }
2593
2594 \f
2595 /* Convert storage class to string. */
2596
2597 STATIC const char *
2598 sc_to_string (storage_class)
2599 sc_t storage_class;
2600 {
2601 switch (storage_class)
2602 {
2603 case sc_Nil: return "Nil,";
2604 case sc_Text: return "Text,";
2605 case sc_Data: return "Data,";
2606 case sc_Bss: return "Bss,";
2607 case sc_Register: return "Register,";
2608 case sc_Abs: return "Abs,";
2609 case sc_Undefined: return "Undefined,";
2610 case sc_CdbLocal: return "CdbLocal,";
2611 case sc_Bits: return "Bits,";
2612 case sc_CdbSystem: return "CdbSystem,";
2613 case sc_RegImage: return "RegImage,";
2614 case sc_Info: return "Info,";
2615 case sc_UserStruct: return "UserStruct,";
2616 case sc_SData: return "SData,";
2617 case sc_SBss: return "SBss,";
2618 case sc_RData: return "RData,";
2619 case sc_Var: return "Var,";
2620 case sc_Common: return "Common,";
2621 case sc_SCommon: return "SCommon,";
2622 case sc_VarRegister: return "VarRegister,";
2623 case sc_Variant: return "Variant,";
2624 case sc_SUndefined: return "SUndefined,";
2625 case sc_Init: return "Init,";
2626 case sc_Max: return "Max,";
2627 }
2628
2629 return "???,";
2630 }
2631
2632 \f
2633 /* Convert symbol type to string. */
2634
2635 STATIC const char *
2636 st_to_string (symbol_type)
2637 st_t symbol_type;
2638 {
2639 switch (symbol_type)
2640 {
2641 case st_Nil: return "Nil,";
2642 case st_Global: return "Global,";
2643 case st_Static: return "Static,";
2644 case st_Param: return "Param,";
2645 case st_Local: return "Local,";
2646 case st_Label: return "Label,";
2647 case st_Proc: return "Proc,";
2648 case st_Block: return "Block,";
2649 case st_End: return "End,";
2650 case st_Member: return "Member,";
2651 case st_Typedef: return "Typedef,";
2652 case st_File: return "File,";
2653 case st_RegReloc: return "RegReloc,";
2654 case st_Forward: return "Forward,";
2655 case st_StaticProc: return "StaticProc,";
2656 case st_Constant: return "Constant,";
2657 case st_Str: return "String,";
2658 case st_Number: return "Number,";
2659 case st_Expr: return "Expr,";
2660 case st_Type: return "Type,";
2661 case st_Max: return "Max,";
2662 }
2663
2664 return "???,";
2665 }
2666
2667 \f
2668 /* Read a line from standard input, and return the start of the buffer
2669 (which is grows if the line is too big). We split lines at the
2670 semi-colon, and return each logical line independently. */
2671
2672 STATIC char *
2673 read_line ()
2674 {
2675 static int line_split_p = 0;
2676 int string_p = 0;
2677 int comment_p = 0;
2678 int ch;
2679 char *ptr;
2680
2681 if (cur_line_start == (char *) 0)
2682 { /* allocate initial page */
2683 cur_line_start = (char *) allocate_page ();
2684 cur_line_alloc = PAGE_SIZE;
2685 }
2686
2687 if (!line_split_p)
2688 line_number++;
2689
2690 line_split_p = 0;
2691 cur_line_nbytes = 0;
2692
2693 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2694 {
2695 if (++cur_line_nbytes >= cur_line_alloc-1)
2696 {
2697 int num_pages = cur_line_alloc / PAGE_SIZE;
2698 char *old_buffer = cur_line_start;
2699
2700 cur_line_alloc += PAGE_SIZE;
2701 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2702 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2703
2704 ptr = cur_line_start + cur_line_nbytes - 1;
2705 }
2706
2707 if (ch == '\n')
2708 {
2709 *ptr++ = '\n';
2710 *ptr = '\0';
2711 cur_line_ptr = cur_line_start;
2712 return cur_line_ptr;
2713 }
2714
2715 else if (ch == '\0')
2716 error ("null character found in input");
2717
2718 else if (!comment_p)
2719 {
2720 if (ch == '"')
2721 string_p = !string_p;
2722
2723 else if (ch == '#')
2724 comment_p++;
2725
2726 else if (ch == ';' && !string_p)
2727 {
2728 line_split_p = 1;
2729 *ptr++ = '\n';
2730 *ptr = '\0';
2731 cur_line_ptr = cur_line_start;
2732 return cur_line_ptr;
2733 }
2734 }
2735 }
2736
2737 if (ferror (stdin))
2738 pfatal_with_name (input_name);
2739
2740 cur_line_ptr = (char *) 0;
2741 return (char *) 0;
2742 }
2743
2744 \f
2745 /* Parse #.begin directives which have a label as the first argument
2746 which gives the location of the start of the block. */
2747
2748 STATIC void
2749 parse_begin (start)
2750 const char *start; /* start of directive */
2751 {
2752 const char *end_p1; /* end of label */
2753 int ch;
2754 shash_t *hash_ptr; /* hash pointer to lookup label */
2755
2756 if (cur_file_ptr == (efdr_t *) 0)
2757 {
2758 error ("#.begin directive without a preceding .file directive");
2759 return;
2760 }
2761
2762 if (cur_proc_ptr == (PDR *) 0)
2763 {
2764 error ("#.begin directive without a preceding .ent directive");
2765 return;
2766 }
2767
2768 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2769 ;
2770
2771 hash_ptr = hash_string (start,
2772 end_p1 - start,
2773 &orig_str_hash[0],
2774 (symint_t *) 0);
2775
2776 if (hash_ptr == (shash_t *) 0)
2777 {
2778 error ("label %.*s not found for #.begin",
2779 (int) (end_p1 - start), start);
2780 return;
2781 }
2782
2783 if (cur_oproc_begin == (SYMR *) 0)
2784 {
2785 error ("procedure table %.*s not found for #.begin",
2786 (int) (end_p1 - start), start);
2787 return;
2788 }
2789
2790 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2791 st_Block, sc_Text,
2792 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2793 (symint_t) 0);
2794 }
2795
2796 \f
2797 /* Parse #.bend directives which have a label as the first argument
2798 which gives the location of the end of the block. */
2799
2800 STATIC void
2801 parse_bend (start)
2802 const char *start; /* start of directive */
2803 {
2804 const char *end_p1; /* end of label */
2805 int ch;
2806 shash_t *hash_ptr; /* hash pointer to lookup label */
2807
2808 if (cur_file_ptr == (efdr_t *) 0)
2809 {
2810 error ("#.begin directive without a preceding .file directive");
2811 return;
2812 }
2813
2814 if (cur_proc_ptr == (PDR *) 0)
2815 {
2816 error ("#.bend directive without a preceding .ent directive");
2817 return;
2818 }
2819
2820 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2821 ;
2822
2823 hash_ptr = hash_string (start,
2824 end_p1 - start,
2825 &orig_str_hash[0],
2826 (symint_t *) 0);
2827
2828 if (hash_ptr == (shash_t *) 0)
2829 {
2830 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2831 return;
2832 }
2833
2834 if (cur_oproc_begin == (SYMR *) 0)
2835 {
2836 error ("procedure table %.*s not found for #.bend",
2837 (int) (end_p1 - start), start);
2838 return;
2839 }
2840
2841 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2842 st_End, sc_Text,
2843 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2844 (symint_t) 0);
2845 }
2846
2847 \f
2848 /* Parse #.def directives, which are contain standard COFF subdirectives
2849 to describe the debugging format. These subdirectives include:
2850
2851 .scl specify storage class
2852 .val specify a value
2853 .endef specify end of COFF directives
2854 .type specify the type
2855 .size specify the size of an array
2856 .dim specify an array dimension
2857 .tag specify a tag for a struct, union, or enum. */
2858
2859 STATIC void
2860 parse_def (name_start)
2861 const char *name_start; /* start of directive */
2862 {
2863 const char *dir_start; /* start of current directive*/
2864 const char *dir_end_p1; /* end+1 of current directive*/
2865 const char *arg_start; /* start of current argument */
2866 const char *arg_end_p1; /* end+1 of current argument */
2867 const char *name_end_p1; /* end+1 of label */
2868 const char *tag_start = 0; /* start of tag name */
2869 const char *tag_end_p1 = 0; /* end+1 of tag name */
2870 sc_t storage_class = sc_Nil;
2871 st_t symbol_type = st_Nil;
2872 type_info_t t;
2873 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2874 int is_function = 0; /* != 0 if function */
2875 symint_t value = 0;
2876 symint_t indx = cur_file_ptr->void_type;
2877 int error_line = 0;
2878 symint_t arg_number;
2879 symint_t temp_array[ N_TQ ];
2880 int arg_was_number;
2881 int ch, i;
2882 Ptrdiff_t len;
2883
2884 static int inside_enumeration = 0; /* is this an enumeration? */
2885
2886
2887 /* Initialize the type information. */
2888 t = type_info_init;
2889
2890
2891 /* Search for the end of the name being defined. */
2892 /* Allow spaces and such in names for G++ templates, which produce stabs
2893 that look like:
2894
2895 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2896
2897 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2898 ;
2899
2900 if (ch == '\0')
2901 {
2902 error_line = __LINE__;
2903 saber_stop ();
2904 goto bomb_out;
2905 }
2906
2907 /* Parse the remaining subdirectives now. */
2908 dir_start = name_end_p1+1;
2909 for (;;)
2910 {
2911 while ((ch = *dir_start) == ' ' || ch == '\t')
2912 ++dir_start;
2913
2914 if (ch != '.')
2915 {
2916 error_line = __LINE__;
2917 saber_stop ();
2918 goto bomb_out;
2919 }
2920
2921 /* Are we done? */
2922 if (dir_start[1] == 'e'
2923 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2924 break;
2925
2926 /* Pick up the subdirective now */
2927 for (dir_end_p1 = dir_start+1;
2928 (ch = *dir_end_p1) != ' ' && ch != '\t';
2929 dir_end_p1++)
2930 {
2931 if (ch == '\0' || ISSPACE (ch))
2932 {
2933 error_line = __LINE__;
2934 saber_stop ();
2935 goto bomb_out;
2936 }
2937 }
2938
2939 /* Pick up the subdirective argument now. */
2940 arg_was_number = arg_number = 0;
2941 arg_end_p1 = 0;
2942 arg_start = dir_end_p1+1;
2943 ch = *arg_start;
2944 while (ch == ' ' || ch == '\t')
2945 ch = *++arg_start;
2946
2947 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2948 {
2949 int ch2;
2950 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2951 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2952 arg_was_number++;
2953 }
2954
2955 else if (ch == '\0' || ISSPACE (ch))
2956 {
2957 error_line = __LINE__;
2958 saber_stop ();
2959 goto bomb_out;
2960 }
2961
2962 if (!arg_was_number)
2963 {
2964 /* Allow spaces and such in names for G++ templates. */
2965 for (arg_end_p1 = arg_start+1;
2966 (ch = *arg_end_p1) != ';' && ch != '\0';
2967 arg_end_p1++)
2968 ;
2969
2970 if (ch == '\0')
2971 {
2972 error_line = __LINE__;
2973 saber_stop ();
2974 goto bomb_out;
2975 }
2976 }
2977
2978 /* Classify the directives now. */
2979 len = dir_end_p1 - dir_start;
2980 switch (dir_start[1])
2981 {
2982 default:
2983 error_line = __LINE__;
2984 saber_stop ();
2985 goto bomb_out;
2986
2987 case 'd':
2988 if (len == sizeof (".dim")-1
2989 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2990 && arg_was_number)
2991 {
2992 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2993
2994 *t_ptr = arg_number;
2995 while (*arg_end_p1 == ',' && arg_was_number)
2996 {
2997 arg_start = arg_end_p1+1;
2998 ch = *arg_start;
2999 while (ch == ' ' || ch == '\t')
3000 ch = *++arg_start;
3001
3002 arg_was_number = 0;
3003 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3004 {
3005 int ch2;
3006 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3007 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3008 arg_was_number++;
3009
3010 if (t_ptr == &temp_array[0])
3011 {
3012 error_line = __LINE__;
3013 saber_stop ();
3014 goto bomb_out;
3015 }
3016
3017 *--t_ptr = arg_number;
3018 }
3019 }
3020
3021 /* Reverse order of dimensions. */
3022 while (t_ptr <= &temp_array[ N_TQ-1 ])
3023 {
3024 if (t.num_dims >= N_TQ-1)
3025 {
3026 error_line = __LINE__;
3027 saber_stop ();
3028 goto bomb_out;
3029 }
3030
3031 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3032 }
3033 break;
3034 }
3035 else
3036 {
3037 error_line = __LINE__;
3038 saber_stop ();
3039 goto bomb_out;
3040 }
3041
3042
3043 case 's':
3044 if (len == sizeof (".scl")-1
3045 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3046 && arg_was_number
3047 && arg_number < ((symint_t) C_MAX))
3048 {
3049 /* If the symbol is a static or external, we have
3050 already gotten the appropriate type and class, so
3051 make sure we don't override those values. This is
3052 needed because there are some type and classes that
3053 are not in COFF, such as short data, etc. */
3054 if (symbol_type == st_Nil)
3055 {
3056 symbol_type = map_coff_sym_type[arg_number];
3057 storage_class = map_coff_storage [arg_number];
3058 }
3059 break;
3060 }
3061
3062 else if (len == sizeof (".size")-1
3063 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3064 && arg_was_number)
3065 {
3066 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3067
3068 *t_ptr = arg_number;
3069 while (*arg_end_p1 == ',' && arg_was_number)
3070 {
3071 arg_start = arg_end_p1+1;
3072 ch = *arg_start;
3073 while (ch == ' ' || ch == '\t')
3074 ch = *++arg_start;
3075
3076 arg_was_number = 0;
3077 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3078 {
3079 int ch2;
3080 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3081 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3082 arg_was_number++;
3083
3084 if (t_ptr == &temp_array[0])
3085 {
3086 error_line = __LINE__;
3087 saber_stop ();
3088 goto bomb_out;
3089 }
3090
3091 *--t_ptr = arg_number;
3092 }
3093 }
3094
3095 /* Reverse order of sizes. */
3096 while (t_ptr <= &temp_array[ N_TQ-1 ])
3097 {
3098 if (t.num_sizes >= N_TQ-1)
3099 {
3100 error_line = __LINE__;
3101 saber_stop ();
3102 goto bomb_out;
3103 }
3104
3105 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3106 }
3107 break;
3108 }
3109
3110 else
3111 {
3112 error_line = __LINE__;
3113 saber_stop ();
3114 goto bomb_out;
3115 }
3116
3117
3118 case 't':
3119 if (len == sizeof (".type")-1
3120 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3121 && arg_was_number)
3122 {
3123 tq_t *tq_ptr = &t.type_qualifiers[0];
3124
3125 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3126 t.basic_type = map_coff_types [(int) t.orig_type];
3127 for (i = N_TQ-1; i >= 0; i--)
3128 {
3129 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3130 & N_TMASK);
3131
3132 if (dt != (int) DT_NON)
3133 *tq_ptr++ = map_coff_derived_type [dt];
3134 }
3135
3136 /* If this is a function, ignore it, so that we don't get
3137 two entries (one from the .ent, and one for the .def
3138 that precedes it). Save the type information so that
3139 the end block can properly add it after the begin block
3140 index. For MIPS knows what reason, we must strip off
3141 the function type at this point. */
3142 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3143 {
3144 is_function = 1;
3145 tq_ptr[-1] = tq_Nil;
3146 }
3147
3148 break;
3149 }
3150
3151 else if (len == sizeof (".tag")-1
3152 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3153 {
3154 tag_start = arg_start;
3155 tag_end_p1 = arg_end_p1;
3156 break;
3157 }
3158
3159 else
3160 {
3161 error_line = __LINE__;
3162 saber_stop ();
3163 goto bomb_out;
3164 }
3165
3166
3167 case 'v':
3168 if (len == sizeof (".val")-1
3169 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3170 {
3171 if (arg_was_number)
3172 value = arg_number;
3173
3174 /* If the value is not an integer value, it must be the
3175 name of a static or global item. Look up the name in
3176 the original symbol table to pick up the storage
3177 class, symbol type, etc. */
3178 else
3179 {
3180 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3181 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3182
3183 ext_hash_ptr = hash_string (arg_start,
3184 arg_end_p1 - arg_start,
3185 &ext_str_hash[0],
3186 (symint_t *) 0);
3187
3188 if (ext_hash_ptr != (shash_t *) 0
3189 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3190 eptr = ext_hash_ptr->esym_ptr;
3191
3192 orig_hash_ptr = hash_string (arg_start,
3193 arg_end_p1 - arg_start,
3194 &orig_str_hash[0],
3195 (symint_t *) 0);
3196
3197 if ((orig_hash_ptr == (shash_t *) 0
3198 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3199 && eptr == (EXTR *) 0)
3200 {
3201 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3202 (int) (arg_end_p1 - arg_start),
3203 arg_start);
3204 value = 0;
3205 }
3206 else
3207 {
3208 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3209 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3210 ? orig_hash_ptr->sym_ptr
3211 : &eptr->asym;
3212
3213 symbol_type = (st_t) ptr->st;
3214 storage_class = (sc_t) ptr->sc;
3215 value = ptr->value;
3216 }
3217 }
3218 break;
3219 }
3220 else
3221 {
3222 error_line = __LINE__;
3223 saber_stop ();
3224 goto bomb_out;
3225 }
3226 }
3227
3228 /* Set up to find next directive. */
3229 dir_start = arg_end_p1 + 1;
3230 }
3231
3232
3233 if (storage_class == sc_Bits)
3234 {
3235 t.bitfield = 1;
3236 t.extra_sizes = 1;
3237 }
3238 else
3239 t.extra_sizes = 0;
3240
3241 if (t.num_dims > 0)
3242 {
3243 int num_real_sizes = t.num_sizes - t.extra_sizes;
3244 int diff = t.num_dims - num_real_sizes;
3245 int i = t.num_dims - 1;
3246 int j;
3247
3248 if (num_real_sizes != 1 || diff < 0)
3249 {
3250 error_line = __LINE__;
3251 saber_stop ();
3252 goto bomb_out;
3253 }
3254
3255 /* If this is an array, make sure the same number of dimensions
3256 and sizes were passed, creating extra sizes for multiply
3257 dimensioned arrays if not passed. */
3258
3259 if (diff)
3260 {
3261 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3262 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3263
3264 t.num_sizes = i + 1;
3265 for ( i--; i >= 0; i-- )
3266 {
3267 if (t.dimensions[ i+1 ])
3268 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3269 else
3270 t.sizes[ i ] = t.sizes[ i+1 ];
3271 }
3272 }
3273 }
3274
3275 /* Except for enumeration members & begin/ending of scopes, put the
3276 type word in the aux. symbol table. */
3277
3278 if (symbol_type == st_Block || symbol_type == st_End)
3279 indx = 0;
3280
3281 else if (inside_enumeration)
3282 indx = cur_file_ptr->void_type;
3283
3284 else
3285 {
3286 if (t.basic_type == bt_Struct
3287 || t.basic_type == bt_Union
3288 || t.basic_type == bt_Enum)
3289 {
3290 if (tag_start == (char *) 0)
3291 {
3292 error ("no tag specified for %.*s",
3293 (int) (name_end_p1 - name_start),
3294 name_start);
3295 return;
3296 }
3297
3298 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3299 t.basic_type);
3300 }
3301
3302 if (is_function)
3303 {
3304 last_func_type_info = t;
3305 last_func_eptr = eptr;
3306 return;
3307 }
3308
3309 indx = add_aux_sym_tir (&t,
3310 hash_yes,
3311 &cur_file_ptr->thash_head[0]);
3312 }
3313
3314
3315 /* If this is an external or static symbol, update the appropriate
3316 external symbol. */
3317
3318 if (eptr != (EXTR *) 0
3319 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3320 {
3321 eptr->ifd = cur_file_ptr->file_index;
3322 eptr->asym.index = indx;
3323 }
3324
3325
3326 /* Do any last minute adjustments that are necessary. */
3327 switch (symbol_type)
3328 {
3329 default:
3330 break;
3331
3332
3333 /* For the beginning of structs, unions, and enumerations, the
3334 size info needs to be passed in the value field. */
3335
3336 case st_Block:
3337 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3338 {
3339 error_line = __LINE__;
3340 saber_stop ();
3341 goto bomb_out;
3342 }
3343
3344 else
3345 value = t.sizes[0];
3346
3347 inside_enumeration = (t.orig_type == T_ENUM);
3348 break;
3349
3350
3351 /* For the end of structs, unions, and enumerations, omit the
3352 name which is always ".eos". This needs to be done last, so
3353 that any error reporting above gives the correct name. */
3354
3355 case st_End:
3356 name_start = name_end_p1 = 0;
3357 value = inside_enumeration = 0;
3358 break;
3359
3360
3361 /* Members of structures and unions that aren't bitfields, need
3362 to adjust the value from a byte offset to a bit offset.
3363 Members of enumerations do not have the value adjusted, and
3364 can be distinguished by indx == indexNil. For enumerations,
3365 update the maximum enumeration value. */
3366
3367 case st_Member:
3368 if (!t.bitfield && !inside_enumeration)
3369 value *= 8;
3370
3371 break;
3372 }
3373
3374
3375 /* Add the symbol, except for global symbols outside of functions,
3376 for which the external symbol table is fine enough. */
3377
3378 if (eptr == (EXTR *) 0
3379 || eptr->asym.st == (int) st_Nil
3380 || cur_proc_ptr != (PDR *) 0)
3381 {
3382 symint_t isym = add_local_symbol (name_start, name_end_p1,
3383 symbol_type, storage_class,
3384 value,
3385 indx);
3386
3387 /* deal with struct, union, and enum tags. */
3388 if (symbol_type == st_Block)
3389 {
3390 /* Create or update the tag information. */
3391 tag_t *tag_ptr = get_tag (name_start,
3392 name_end_p1,
3393 isym,
3394 t.basic_type);
3395
3396 /* If there are any forward references, fill in the appropriate
3397 file and symbol indexes. */
3398
3399 symint_t file_index = cur_file_ptr->file_index;
3400 forward_t *f_next = tag_ptr->forward_ref;
3401 forward_t *f_cur;
3402
3403 while (f_next != (forward_t *) 0)
3404 {
3405 f_cur = f_next;
3406 f_next = f_next->next;
3407
3408 f_cur->ifd_ptr->isym = file_index;
3409 f_cur->index_ptr->rndx.index = isym;
3410
3411 free_forward (f_cur);
3412 }
3413
3414 tag_ptr->forward_ref = (forward_t *) 0;
3415 }
3416 }
3417
3418 /* Normal return */
3419 return;
3420
3421 /* Error return, issue message. */
3422 bomb_out:
3423 if (error_line)
3424 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3425 else
3426 error ("compiler error, badly formed #.def");
3427
3428 return;
3429 }
3430
3431 \f
3432 /* Parse .end directives. */
3433
3434 STATIC void
3435 parse_end (start)
3436 const char *start; /* start of directive */
3437 {
3438 const char *start_func, *end_func_p1;
3439 int ch;
3440 symint_t value;
3441 FDR *orig_fdr;
3442
3443 if (cur_file_ptr == (efdr_t *) 0)
3444 {
3445 error (".end directive without a preceding .file directive");
3446 return;
3447 }
3448
3449 if (cur_proc_ptr == (PDR *) 0)
3450 {
3451 error (".end directive without a preceding .ent directive");
3452 return;
3453 }
3454
3455 /* Get the function name, skipping whitespace. */
3456 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3457 ;
3458
3459 ch = *start_func;
3460 if (!IS_ASM_IDENT (ch))
3461 {
3462 error (".end directive has no name");
3463 return;
3464 }
3465
3466 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3467 ;
3468
3469
3470 /* Get the value field for creating the end from the original object
3471 file (which we find by locating the procedure start, and using the
3472 pointer to the end+1 block and backing up. The index points to a
3473 two word aux. symbol, whose first word is the index of the end
3474 symbol, and the second word is the type of the function return
3475 value. */
3476
3477 orig_fdr = cur_file_ptr->orig_fdr;
3478 value = 0;
3479 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3480 value = cur_oproc_end->value;
3481
3482 else
3483 error ("cannot find .end block for %.*s",
3484 (int) (end_func_p1 - start_func), start_func);
3485
3486 (void) add_local_symbol (start_func, end_func_p1,
3487 st_End, sc_Text,
3488 value,
3489 (symint_t) 0);
3490
3491 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3492 }
3493
3494 \f
3495 /* Parse .ent directives. */
3496
3497 STATIC void
3498 parse_ent (start)
3499 const char *start; /* start of directive */
3500 {
3501 const char *start_func, *end_func_p1;
3502 int ch;
3503
3504 if (cur_file_ptr == (efdr_t *) 0)
3505 {
3506 error (".ent directive without a preceding .file directive");
3507 return;
3508 }
3509
3510 if (cur_proc_ptr != (PDR *) 0)
3511 {
3512 error ("second .ent directive found before .end directive");
3513 return;
3514 }
3515
3516 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3517 ;
3518
3519 ch = *start_func;
3520 if (!IS_ASM_IDENT (ch))
3521 {
3522 error (".ent directive has no name");
3523 return;
3524 }
3525
3526 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3527 ;
3528
3529 (void) add_procedure (start_func, end_func_p1);
3530 }
3531
3532 \f
3533 /* Parse .file directives. */
3534
3535 STATIC void
3536 parse_file (start)
3537 const char *start; /* start of directive */
3538 {
3539 char *p;
3540 char *start_name, *end_name_p1;
3541
3542 (void) strtol (start, &p, 0);
3543 if (start == p
3544 || (start_name = strchr (p, '"')) == (char *) 0
3545 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3546 {
3547 error ("invalid .file directive");
3548 return;
3549 }
3550
3551 if (cur_proc_ptr != (PDR *) 0)
3552 {
3553 error ("no way to handle .file within .ent/.end section");
3554 return;
3555 }
3556
3557 add_file (start_name, end_name_p1);
3558 }
3559
3560 \f
3561 /* Make sure the @stabs symbol is emitted. */
3562
3563 static void
3564 mark_stabs (start)
3565 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3566 {
3567 if (!stabs_seen)
3568 {
3569 /* Add a dummy @stabs symbol. */
3570 stabs_seen = 1;
3571 (void) add_local_symbol (stabs_symbol,
3572 stabs_symbol + sizeof (stabs_symbol),
3573 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3574
3575 }
3576 }
3577
3578 \f
3579 /* Parse .stabs directives.
3580
3581 .stabs directives have five fields:
3582 "string" a string, encoding the type information.
3583 code a numeric code, defined in <stab.h>
3584 0 a zero
3585 0 a zero or line number
3586 value a numeric value or an address.
3587
3588 If the value is relocatable, we transform this into:
3589 iss points as an index into string space
3590 value value from lookup of the name
3591 st st from lookup of the name
3592 sc sc from lookup of the name
3593 index code|CODE_MASK
3594
3595 If the value is not relocatable, we transform this into:
3596 iss points as an index into string space
3597 value value
3598 st st_Nil
3599 sc sc_Nil
3600 index code|CODE_MASK
3601
3602 .stabn directives have four fields (string is null):
3603 code a numeric code, defined in <stab.h>
3604 0 a zero
3605 0 a zero or a line number
3606 value a numeric value or an address. */
3607
3608 STATIC void
3609 parse_stabs_common (string_start, string_end, rest)
3610 const char *string_start; /* start of string or NULL */
3611 const char *string_end; /* end+1 of string or NULL */
3612 const char *rest; /* rest of the directive. */
3613 {
3614 efdr_t *save_file_ptr = cur_file_ptr;
3615 symint_t code;
3616 symint_t value;
3617 char *p;
3618 st_t st;
3619 sc_t sc;
3620 int ch;
3621
3622 if (stabs_seen == 0)
3623 mark_stabs ("");
3624
3625 /* Read code from stabs. */
3626 if (!ISDIGIT (*rest))
3627 {
3628 error ("invalid .stabs/.stabn directive, code is non-numeric");
3629 return;
3630 }
3631
3632 code = strtol (rest, &p, 0);
3633
3634 /* Line number stabs are handled differently, since they have two values,
3635 the line number and the address of the label. We use the index field
3636 (aka code) to hold the line number, and the value field to hold the
3637 address. The symbol type is st_Label, which should be different from
3638 the other stabs, so that gdb can recognize it. */
3639
3640 if (code == (int) N_SLINE)
3641 {
3642 SYMR *sym_ptr, dummy_symr;
3643 shash_t *shash_ptr;
3644
3645 /* Skip ,0, */
3646 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3647 {
3648 error ("invalid line number .stabs/.stabn directive");
3649 return;
3650 }
3651
3652 code = strtol (p+3, &p, 0);
3653 ch = *++p;
3654 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3655 {
3656 error ("invalid line number .stabs/.stabn directive");
3657 return;
3658 }
3659
3660 dummy_symr.index = code;
3661 if (dummy_symr.index != code)
3662 {
3663 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3664 code);
3665
3666 return;
3667 }
3668
3669 shash_ptr = hash_string (p,
3670 strlen (p) - 1,
3671 &orig_str_hash[0],
3672 (symint_t *) 0);
3673
3674 if (shash_ptr == (shash_t *) 0
3675 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3676 {
3677 error ("invalid .stabs/.stabn directive, value not found");
3678 return;
3679 }
3680
3681 if ((st_t) sym_ptr->st != st_Label)
3682 {
3683 error ("invalid line number .stabs/.stabn directive");
3684 return;
3685 }
3686
3687 st = st_Label;
3688 sc = (sc_t) sym_ptr->sc;
3689 value = sym_ptr->value;
3690 }
3691 else
3692 {
3693 /* Skip ,<num>,<num>, */
3694 if (*p++ != ',')
3695 goto failure;
3696 for (; ISDIGIT (*p); p++)
3697 ;
3698 if (*p++ != ',')
3699 goto failure;
3700 for (; ISDIGIT (*p); p++)
3701 ;
3702 if (*p++ != ',')
3703 goto failure;
3704 ch = *p;
3705 if (!IS_ASM_IDENT (ch) && ch != '-')
3706 {
3707 failure:
3708 error ("invalid .stabs/.stabn directive, bad character");
3709 return;
3710 }
3711
3712 if (ISDIGIT (ch) || ch == '-')
3713 {
3714 st = st_Nil;
3715 sc = sc_Nil;
3716 value = strtol (p, &p, 0);
3717 if (*p != '\n')
3718 {
3719 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3720 return;
3721 }
3722 }
3723 else if (!IS_ASM_IDENT (ch))
3724 {
3725 error ("invalid .stabs/.stabn directive, bad character");
3726 return;
3727 }
3728 else
3729 {
3730 SYMR *sym_ptr;
3731 shash_t *shash_ptr;
3732 const char *start, *end_p1;
3733
3734 start = p;
3735 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3736 {
3737 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3738 end_p1 = start + strlen (start) - 1;
3739 }
3740
3741 shash_ptr = hash_string (start,
3742 end_p1 - start,
3743 &orig_str_hash[0],
3744 (symint_t *) 0);
3745
3746 if (shash_ptr == (shash_t *) 0
3747 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3748 {
3749 shash_ptr = hash_string (start,
3750 end_p1 - start,
3751 &ext_str_hash[0],
3752 (symint_t *) 0);
3753
3754 if (shash_ptr == (shash_t *) 0
3755 || shash_ptr->esym_ptr == (EXTR *) 0)
3756 {
3757 error ("invalid .stabs/.stabn directive, value not found");
3758 return;
3759 }
3760 else
3761 sym_ptr = &(shash_ptr->esym_ptr->asym);
3762 }
3763
3764 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3765 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3766 {
3767 sc = scNil;
3768 st = stNil;
3769 }
3770 else
3771 {
3772 sc = (sc_t) sym_ptr->sc;
3773 st = (st_t) sym_ptr->st;
3774 }
3775 value = sym_ptr->value;
3776
3777 ch = *end_p1++;
3778 if (ch != '\n')
3779 {
3780 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3781 || ((ch != '+') && (ch != '-')))
3782 {
3783 error ("invalid .stabs/.stabn directive, badly formed value");
3784 return;
3785 }
3786 if (ch == '+')
3787 value += strtol (end_p1, &p, 0);
3788 else if (ch == '-')
3789 value -= strtol (end_p1, &p, 0);
3790
3791 if (*p != '\n')
3792 {
3793 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3794 return;
3795 }
3796 }
3797 }
3798 code = MIPS_MARK_STAB (code);
3799 }
3800
3801 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3802 /* Restore normal file type. */
3803 cur_file_ptr = save_file_ptr;
3804 }
3805
3806
3807 STATIC void
3808 parse_stabs (start)
3809 const char *start; /* start of directive */
3810 {
3811 const char *end = strchr (start+1, '"');
3812
3813 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3814 {
3815 error ("invalid .stabs directive, no string");
3816 return;
3817 }
3818
3819 parse_stabs_common (start+1, end, end+2);
3820 }
3821
3822
3823 STATIC void
3824 parse_stabn (start)
3825 const char *start; /* start of directive */
3826 {
3827 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3828 }
3829
3830 \f
3831 /* Parse the input file, and write the lines to the output file
3832 if needed. */
3833
3834 STATIC void
3835 parse_input ()
3836 {
3837 char *p;
3838 Size_t i;
3839 thead_t *ptag_head;
3840 tag_t *ptag;
3841 tag_t *ptag_next;
3842
3843 if (debug)
3844 fprintf (stderr, "\tinput\n");
3845
3846 /* Add a dummy scope block around the entire compilation unit for
3847 structures defined outside of blocks. */
3848 ptag_head = allocate_thead ();
3849 ptag_head->first_tag = 0;
3850 ptag_head->prev = cur_tag_head;
3851 cur_tag_head = ptag_head;
3852
3853 while ((p = read_line ()) != (char *) 0)
3854 {
3855 /* Skip leading blanks */
3856 while (ISSPACE ((unsigned char)*p))
3857 p++;
3858
3859 /* See if it's a directive we handle. If so, dispatch handler. */
3860 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3861 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3862 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3863 {
3864 p += pseudo_ops[i].len; /* skip to first argument */
3865 while (ISSPACE ((unsigned char)*p))
3866 p++;
3867
3868 (*pseudo_ops[i].func)( p );
3869 break;
3870 }
3871 }
3872
3873 /* Process any tags at global level. */
3874 ptag_head = cur_tag_head;
3875 cur_tag_head = ptag_head->prev;
3876
3877 for (ptag = ptag_head->first_tag;
3878 ptag != (tag_t *) 0;
3879 ptag = ptag_next)
3880 {
3881 if (ptag->forward_ref != (forward_t *) 0)
3882 add_unknown_tag (ptag);
3883
3884 ptag_next = ptag->same_block;
3885 ptag->hash_ptr->tag_ptr = ptag->same_name;
3886 free_tag (ptag);
3887 }
3888
3889 free_thead (ptag_head);
3890
3891 }
3892
3893 \f
3894 /* Update the global headers with the final offsets in preparation
3895 to write out the .T file. */
3896
3897 STATIC void
3898 update_headers ()
3899 {
3900 symint_t i;
3901 efdr_t *file_ptr;
3902
3903 /* Set up the symbolic header. */
3904 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3905 symbolic_header.magic = orig_sym_hdr.magic;
3906 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3907
3908 /* Set up global counts. */
3909 symbolic_header.issExtMax = ext_strings.num_allocated;
3910 symbolic_header.idnMax = dense_num.num_allocated;
3911 symbolic_header.ifdMax = file_desc.num_allocated;
3912 symbolic_header.iextMax = ext_symbols.num_allocated;
3913 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3914 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3915 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3916 symbolic_header.crfd = orig_sym_hdr.crfd;
3917
3918
3919 /* Loop through each file, figuring out how many local syms,
3920 line numbers, etc. there are. Also, put out end symbol
3921 for the filename. */
3922
3923 for (file_ptr = first_file;
3924 file_ptr != (efdr_t *) 0;
3925 file_ptr = file_ptr->next_file)
3926 {
3927 SYMR *sym_start;
3928 SYMR *sym;
3929 SYMR *sym_end_p1;
3930 FDR *fd_ptr = file_ptr->orig_fdr;
3931
3932 cur_file_ptr = file_ptr;
3933
3934 /* Copy st_Static symbols from the original local symbol table if
3935 they did not get added to the new local symbol table.
3936 This happens with stabs-in-ecoff or if the source file is
3937 compiled without debugging. */
3938 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3939 sym_end_p1 = sym_start + fd_ptr->csym;
3940 for (sym = sym_start; sym < sym_end_p1; sym++)
3941 {
3942 if ((st_t) sym->st == st_Static)
3943 {
3944 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3945 Size_t len = strlen (str);
3946 shash_t *hash_ptr;
3947
3948 /* Ignore internal labels. */
3949 if (str[0] == '$' && str[1] == 'L')
3950 continue;
3951 hash_ptr = hash_string (str,
3952 (Ptrdiff_t) len,
3953 &file_ptr->shash_head[0],
3954 (symint_t *) 0);
3955 if (hash_ptr == (shash_t *) 0)
3956 {
3957 (void) add_local_symbol (str, str + len,
3958 (st_t) sym->st, (sc_t) sym->sc,
3959 (symint_t) sym->value,
3960 (symint_t) indexNil);
3961 }
3962 }
3963 }
3964 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3965 st_End, sc_Text,
3966 (symint_t) 0,
3967 (symint_t) 0);
3968
3969 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3970 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3971 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3972
3973 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3974 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3975 symbolic_header.isymMax += file_ptr->fdr.csym;
3976
3977 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3978 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3979 symbolic_header.iauxMax += file_ptr->fdr.caux;
3980
3981 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3982 file_ptr->fdr.issBase = symbolic_header.issMax;
3983 symbolic_header.issMax += file_ptr->fdr.cbSs;
3984 }
3985
3986 #ifndef ALIGN_SYMTABLE_OFFSET
3987 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3988 #endif
3989
3990 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3991 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3992 if (i > 0)
3993 {
3994 symbolic_header.cbLineOffset = file_offset;
3995 file_offset += i;
3996 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3997 }
3998
3999 i = symbolic_header.ioptMax; /* optimization symbols */
4000 if (((long) i) > 0)
4001 {
4002 symbolic_header.cbOptOffset = file_offset;
4003 file_offset += i * sizeof (OPTR);
4004 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4005 }
4006
4007 i = symbolic_header.idnMax; /* dense numbers */
4008 if (i > 0)
4009 {
4010 symbolic_header.cbDnOffset = file_offset;
4011 file_offset += i * sizeof (DNR);
4012 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4013 }
4014
4015 i = symbolic_header.ipdMax; /* procedure tables */
4016 if (i > 0)
4017 {
4018 symbolic_header.cbPdOffset = file_offset;
4019 file_offset += i * sizeof (PDR);
4020 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4021 }
4022
4023 i = symbolic_header.isymMax; /* local symbols */
4024 if (i > 0)
4025 {
4026 symbolic_header.cbSymOffset = file_offset;
4027 file_offset += i * sizeof (SYMR);
4028 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4029 }
4030
4031 i = symbolic_header.iauxMax; /* aux syms. */
4032 if (i > 0)
4033 {
4034 symbolic_header.cbAuxOffset = file_offset;
4035 file_offset += i * sizeof (TIR);
4036 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4037 }
4038
4039 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4040 if (i > 0)
4041 {
4042 symbolic_header.cbSsOffset = file_offset;
4043 file_offset += i;
4044 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4045 }
4046
4047 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4048 if (i > 0)
4049 {
4050 symbolic_header.cbSsExtOffset = file_offset;
4051 file_offset += i;
4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4053 }
4054
4055 i = symbolic_header.ifdMax; /* file tables */
4056 if (i > 0)
4057 {
4058 symbolic_header.cbFdOffset = file_offset;
4059 file_offset += i * sizeof (FDR);
4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4061 }
4062
4063 i = symbolic_header.crfd; /* relative file descriptors */
4064 if (i > 0)
4065 {
4066 symbolic_header.cbRfdOffset = file_offset;
4067 file_offset += i * sizeof (symint_t);
4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4069 }
4070
4071 i = symbolic_header.iextMax; /* external symbols */
4072 if (i > 0)
4073 {
4074 symbolic_header.cbExtOffset = file_offset;
4075 file_offset += i * sizeof (EXTR);
4076 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4077 }
4078 }
4079
4080 \f
4081 /* Write out a varray at a given location. */
4082
4083 STATIC void
4084 write_varray (vp, offset, str)
4085 varray_t *vp; /* virtual array */
4086 off_t offset; /* offset to write varray to */
4087 const char *str; /* string to print out when tracing */
4088 {
4089 int num_write, sys_write;
4090 vlinks_t *ptr;
4091
4092 if (vp->num_allocated == 0)
4093 return;
4094
4095 if (debug)
4096 {
4097 fputs ("\twarray\tvp = ", stderr);
4098 fprintf (stderr, HOST_PTR_PRINTF, (PTR) vp);
4099 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4100 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4101 }
4102
4103 if (file_offset != offset
4104 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4105 pfatal_with_name (object_name);
4106
4107 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4108 {
4109 num_write = (ptr->next == (vlinks_t *) 0)
4110 ? vp->objects_last_page * vp->object_size
4111 : vp->objects_per_page * vp->object_size;
4112
4113 sys_write = fwrite ((PTR) ptr->datum, 1, num_write, object_stream);
4114 if (sys_write <= 0)
4115 pfatal_with_name (object_name);
4116
4117 else if (sys_write != num_write)
4118 fatal ("wrote %d bytes to %s, system returned %d",
4119 num_write,
4120 object_name,
4121 sys_write);
4122
4123 file_offset += num_write;
4124 }
4125 }
4126
4127 \f
4128 /* Write out the symbol table in the object file. */
4129
4130 STATIC void
4131 write_object ()
4132 {
4133 int sys_write;
4134 efdr_t *file_ptr;
4135 off_t offset;
4136
4137 if (debug)
4138 {
4139 fputs ("\n\twrite\tvp = ", stderr);
4140 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &symbolic_header);
4141 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4142 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4143 }
4144
4145 sys_write = fwrite ((PTR) &symbolic_header,
4146 1,
4147 sizeof (symbolic_header),
4148 object_stream);
4149
4150 if (sys_write < 0)
4151 pfatal_with_name (object_name);
4152
4153 else if (sys_write != sizeof (symbolic_header))
4154 fatal ("wrote %d bytes to %s, system returned %d",
4155 (int) sizeof (symbolic_header),
4156 object_name,
4157 sys_write);
4158
4159
4160 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4161
4162 if (symbolic_header.cbLine > 0) /* line numbers */
4163 {
4164 long sys_write;
4165
4166 if (file_offset != symbolic_header.cbLineOffset
4167 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4168 pfatal_with_name (object_name);
4169
4170 if (debug)
4171 {
4172 fputs ("\twrite\tvp = ", stderr);
4173 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_linenum);
4174 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4175 (long) symbolic_header.cbLineOffset,
4176 (long) symbolic_header.cbLine, "Line numbers");
4177 }
4178
4179 sys_write = fwrite ((PTR) orig_linenum,
4180 1,
4181 symbolic_header.cbLine,
4182 object_stream);
4183
4184 if (sys_write <= 0)
4185 pfatal_with_name (object_name);
4186
4187 else if (sys_write != symbolic_header.cbLine)
4188 fatal ("wrote %ld bytes to %s, system returned %ld",
4189 (long) symbolic_header.cbLine,
4190 object_name,
4191 sys_write);
4192
4193 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4194 }
4195
4196 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4197 {
4198 long sys_write;
4199 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4200
4201 if (file_offset != symbolic_header.cbOptOffset
4202 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4203 pfatal_with_name (object_name);
4204
4205 if (debug)
4206 {
4207 fputs ("\twrite\tvp = ", stderr);
4208 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_opt_syms);
4209 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4210 (long) symbolic_header.cbOptOffset,
4211 num_write, "Optimizer symbols");
4212 }
4213
4214 sys_write = fwrite ((PTR) orig_opt_syms,
4215 1,
4216 num_write,
4217 object_stream);
4218
4219 if (sys_write <= 0)
4220 pfatal_with_name (object_name);
4221
4222 else if (sys_write != num_write)
4223 fatal ("wrote %ld bytes to %s, system returned %ld",
4224 num_write,
4225 object_name,
4226 sys_write);
4227
4228 file_offset = symbolic_header.cbOptOffset + num_write;
4229 }
4230
4231 if (symbolic_header.idnMax > 0) /* dense numbers */
4232 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4233
4234 if (symbolic_header.ipdMax > 0) /* procedure tables */
4235 {
4236 offset = symbolic_header.cbPdOffset;
4237 for (file_ptr = first_file;
4238 file_ptr != (efdr_t *) 0;
4239 file_ptr = file_ptr->next_file)
4240 {
4241 write_varray (&file_ptr->procs, offset, "Procedure tables");
4242 offset = file_offset;
4243 }
4244 }
4245
4246 if (symbolic_header.isymMax > 0) /* local symbols */
4247 {
4248 offset = symbolic_header.cbSymOffset;
4249 for (file_ptr = first_file;
4250 file_ptr != (efdr_t *) 0;
4251 file_ptr = file_ptr->next_file)
4252 {
4253 write_varray (&file_ptr->symbols, offset, "Local symbols");
4254 offset = file_offset;
4255 }
4256 }
4257
4258 if (symbolic_header.iauxMax > 0) /* aux symbols */
4259 {
4260 offset = symbolic_header.cbAuxOffset;
4261 for (file_ptr = first_file;
4262 file_ptr != (efdr_t *) 0;
4263 file_ptr = file_ptr->next_file)
4264 {
4265 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4266 offset = file_offset;
4267 }
4268 }
4269
4270 if (symbolic_header.issMax > 0) /* local strings */
4271 {
4272 offset = symbolic_header.cbSsOffset;
4273 for (file_ptr = first_file;
4274 file_ptr != (efdr_t *) 0;
4275 file_ptr = file_ptr->next_file)
4276 {
4277 write_varray (&file_ptr->strings, offset, "Local strings");
4278 offset = file_offset;
4279 }
4280 }
4281
4282 if (symbolic_header.issExtMax > 0) /* external strings */
4283 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4284
4285 if (symbolic_header.ifdMax > 0) /* file tables */
4286 {
4287 offset = symbolic_header.cbFdOffset;
4288 if (file_offset != offset
4289 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4290 pfatal_with_name (object_name);
4291
4292 file_offset = offset;
4293 for (file_ptr = first_file;
4294 file_ptr != (efdr_t *) 0;
4295 file_ptr = file_ptr->next_file)
4296 {
4297 if (debug)
4298 {
4299 fputs ("\twrite\tvp = ", stderr);
4300 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &file_ptr->fdr);
4301 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4302 file_offset, (unsigned long) sizeof (FDR),
4303 "File header");
4304 }
4305
4306 sys_write = fwrite (&file_ptr->fdr,
4307 1,
4308 sizeof (FDR),
4309 object_stream);
4310
4311 if (sys_write < 0)
4312 pfatal_with_name (object_name);
4313
4314 else if (sys_write != sizeof (FDR))
4315 fatal ("wrote %d bytes to %s, system returned %d",
4316 (int) sizeof (FDR),
4317 object_name,
4318 sys_write);
4319
4320 file_offset = offset += sizeof (FDR);
4321 }
4322 }
4323
4324 if (symbolic_header.crfd > 0) /* relative file descriptors */
4325 {
4326 long sys_write;
4327 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4328
4329 if (file_offset != symbolic_header.cbRfdOffset
4330 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4331 pfatal_with_name (object_name);
4332
4333 if (debug)
4334 {
4335 fputs ("\twrite\tvp = ", stderr);
4336 fprintf (stderr, HOST_PTR_PRINTF, (PTR) &orig_rfds);
4337 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4338 (long) symbolic_header.cbRfdOffset,
4339 num_write, "Relative file descriptors");
4340 }
4341
4342 sys_write = fwrite (orig_rfds,
4343 1,
4344 num_write,
4345 object_stream);
4346
4347 if (sys_write <= 0)
4348 pfatal_with_name (object_name);
4349
4350 else if (sys_write != (long) num_write)
4351 fatal ("wrote %lu bytes to %s, system returned %ld",
4352 num_write,
4353 object_name,
4354 sys_write);
4355
4356 file_offset = symbolic_header.cbRfdOffset + num_write;
4357 }
4358
4359 if (symbolic_header.issExtMax > 0) /* external symbols */
4360 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4361
4362 if (fclose (object_stream) != 0)
4363 pfatal_with_name (object_name);
4364 }
4365
4366 \f
4367 /* Read some bytes at a specified location, and return a pointer. */
4368
4369 STATIC page_t *
4370 read_seek (size, offset, str)
4371 Size_t size; /* # bytes to read */
4372 off_t offset; /* offset to read at */
4373 const char *str; /* name for tracing */
4374 {
4375 page_t *ptr;
4376 long sys_read = 0;
4377
4378 if (size == 0) /* nothing to read */
4379 return (page_t *) 0;
4380
4381 if (debug)
4382 fprintf (stderr,
4383 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4384 (unsigned long) size, (unsigned long) offset, file_offset, str);
4385
4386 #ifndef MALLOC_CHECK
4387 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4388 #else
4389 ptr = (page_t *) xcalloc (1, size);
4390 #endif
4391
4392 /* If we need to seek, and the distance is nearby, just do some reads,
4393 to speed things up. */
4394 if (file_offset != offset)
4395 {
4396 symint_t difference = offset - file_offset;
4397
4398 if (difference < 8)
4399 {
4400 char small_buffer[8];
4401
4402 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4403 if (sys_read <= 0)
4404 pfatal_with_name (obj_in_name);
4405
4406 if ((symint_t) sys_read != difference)
4407 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4408 (unsigned long) size,
4409 obj_in_name,
4410 sys_read);
4411 }
4412 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4413 pfatal_with_name (obj_in_name);
4414 }
4415
4416 sys_read = fread ((PTR) ptr, 1, size, obj_in_stream);
4417 if (sys_read <= 0)
4418 pfatal_with_name (obj_in_name);
4419
4420 if (sys_read != (long) size)
4421 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4422 (unsigned long) size,
4423 obj_in_name,
4424 sys_read);
4425
4426 file_offset = offset + size;
4427
4428 if (file_offset > max_file_offset)
4429 max_file_offset = file_offset;
4430
4431 return ptr;
4432 }
4433
4434 \f
4435 /* Read the existing object file (and copy to the output object file
4436 if it is different from the input object file), and remove the old
4437 symbol table. */
4438
4439 STATIC void
4440 copy_object ()
4441 {
4442 char buffer[ PAGE_SIZE ];
4443 int sys_read;
4444 int remaining;
4445 int num_write;
4446 int sys_write;
4447 int fd, es;
4448 int delete_ifd = 0;
4449 int *remap_file_number;
4450 struct stat stat_buf;
4451
4452 if (debug)
4453 fprintf (stderr, "\tcopy\n");
4454
4455 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4456 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4457 pfatal_with_name (obj_in_name);
4458
4459 sys_read = fread ((PTR) &orig_file_header,
4460 1,
4461 sizeof (struct filehdr),
4462 obj_in_stream);
4463
4464 if (sys_read < 0)
4465 pfatal_with_name (obj_in_name);
4466
4467 else if (sys_read == 0 && feof (obj_in_stream))
4468 return; /* create a .T file sans file header */
4469
4470 else if (sys_read < (int) sizeof (struct filehdr))
4471 fatal ("wanted to read %d bytes from %s, system returned %d",
4472 (int) sizeof (struct filehdr),
4473 obj_in_name,
4474 sys_read);
4475
4476
4477 if (orig_file_header.f_nsyms != sizeof (HDRR))
4478 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4479 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4480
4481
4482 /* Read in the current symbolic header. */
4483 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4484 pfatal_with_name (input_name);
4485
4486 sys_read = fread ((PTR) &orig_sym_hdr,
4487 1,
4488 sizeof (orig_sym_hdr),
4489 obj_in_stream);
4490
4491 if (sys_read < 0)
4492 pfatal_with_name (object_name);
4493
4494 else if (sys_read < (int) sizeof (struct filehdr))
4495 fatal ("wanted to read %d bytes from %s, system returned %d",
4496 (int) sizeof (struct filehdr),
4497 obj_in_name,
4498 sys_read);
4499
4500
4501 /* Read in each of the sections if they exist in the object file.
4502 We read things in in the order the mips assembler creates the
4503 sections, so in theory no extra seeks are done.
4504
4505 For simplicity sake, round each read up to a page boundary,
4506 we may want to revisit this later.... */
4507
4508 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4509
4510 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4511 orig_linenum = (char *) read_seek ((Size_t) orig_sym_hdr.cbLine,
4512 orig_sym_hdr.cbLineOffset,
4513 "Line numbers");
4514
4515 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4516 orig_procs = (PDR *) read_seek ((Size_t) orig_sym_hdr.ipdMax * sizeof (PDR),
4517 orig_sym_hdr.cbPdOffset,
4518 "Procedure tables");
4519
4520 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4521 orig_local_syms = (SYMR *) read_seek ((Size_t) orig_sym_hdr.isymMax * sizeof (SYMR),
4522 orig_sym_hdr.cbSymOffset,
4523 "Local symbols");
4524
4525 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4526 orig_aux_syms = (AUXU *) read_seek ((Size_t) orig_sym_hdr.iauxMax * sizeof (AUXU),
4527 orig_sym_hdr.cbAuxOffset,
4528 "Aux. symbols");
4529
4530 if (orig_sym_hdr.issMax > 0) /* local strings */
4531 orig_local_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issMax,
4532 orig_sym_hdr.cbSsOffset,
4533 "Local strings");
4534
4535 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4536 orig_ext_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issExtMax,
4537 orig_sym_hdr.cbSsExtOffset,
4538 "External strings");
4539
4540 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4541 orig_files = (FDR *) read_seek ((Size_t) orig_sym_hdr.ifdMax * sizeof (FDR),
4542 orig_sym_hdr.cbFdOffset,
4543 "File tables");
4544
4545 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4546 orig_rfds = (symint_t *) read_seek ((Size_t) orig_sym_hdr.crfd * sizeof (symint_t),
4547 orig_sym_hdr.cbRfdOffset,
4548 "Relative file descriptors");
4549
4550 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4551 orig_ext_syms = (EXTR *) read_seek ((Size_t) orig_sym_hdr.iextMax * sizeof (EXTR),
4552 orig_sym_hdr.cbExtOffset,
4553 "External symbols");
4554
4555 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4556 {
4557 orig_dense = (DNR *) read_seek ((Size_t) orig_sym_hdr.idnMax * sizeof (DNR),
4558 orig_sym_hdr.cbDnOffset,
4559 "Dense numbers");
4560
4561 add_bytes (&dense_num, (char *) orig_dense, (Size_t) orig_sym_hdr.idnMax);
4562 }
4563
4564 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4565 orig_opt_syms = (OPTR *) read_seek ((Size_t) orig_sym_hdr.ioptMax * sizeof (OPTR),
4566 orig_sym_hdr.cbOptOffset,
4567 "Optimizer symbols");
4568
4569
4570
4571 /* Abort if the symbol table is not last. */
4572 if (max_file_offset != stat_buf.st_size)
4573 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4574 max_file_offset,
4575 (long) stat_buf.st_size);
4576
4577
4578 /* If the first original file descriptor is a dummy which the assembler
4579 put out, but there are no symbols in it, skip it now. */
4580 if (orig_sym_hdr.ifdMax > 1
4581 && orig_files->csym == 2
4582 && orig_files->caux == 0)
4583 {
4584 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4585 char *suffix = strrchr (filename, '.');
4586
4587 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4588 delete_ifd = 1;
4589 }
4590
4591
4592 /* Create array to map original file numbers to the new file numbers
4593 (in case there are duplicate filenames, we collapse them into one
4594 file section, the MIPS assembler may or may not collapse them). */
4595
4596 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4597
4598 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4599 {
4600 FDR *fd_ptr = ORIG_FILES (fd);
4601 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4602
4603 /* file support itself. */
4604 add_file (filename, filename + strlen (filename));
4605 remap_file_number[fd] = cur_file_ptr->file_index;
4606 }
4607
4608 if (delete_ifd > 0) /* just in case */
4609 remap_file_number[0] = remap_file_number[1];
4610
4611
4612 /* Loop, adding each of the external symbols. These must be in
4613 order or otherwise we would have to change the relocation
4614 entries. We don't just call add_bytes, because we need to have
4615 the names put into the external hash table. We set the type to
4616 'void' for now, and parse_def will fill in the correct type if it
4617 is in the symbol table. We must add the external symbols before
4618 the locals, since the locals do lookups against the externals. */
4619
4620 if (debug)
4621 fprintf (stderr, "\tehash\n");
4622
4623 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4624 {
4625 EXTR *eptr = orig_ext_syms + es;
4626 unsigned ifd = eptr->ifd;
4627
4628 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4629 ? remap_file_number[ ifd ] : ifd );
4630 }
4631
4632
4633 /* For each of the files in the object file, copy the symbols, and such
4634 into the varrays for the new object file. */
4635
4636 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4637 {
4638 FDR *fd_ptr = ORIG_FILES (fd);
4639 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4640 SYMR *sym_start;
4641 SYMR *sym;
4642 SYMR *sym_end_p1;
4643 PDR *proc_start;
4644 PDR *proc;
4645 PDR *proc_end_p1;
4646
4647 /* file support itself. */
4648 add_file (filename, filename + strlen (filename));
4649 cur_file_ptr->orig_fdr = fd_ptr;
4650
4651 /* Copy stuff that's just passed through (such as line #'s) */
4652 cur_file_ptr->fdr.adr = fd_ptr->adr;
4653 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4654 cur_file_ptr->fdr.cline = fd_ptr->cline;
4655 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4656 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4657 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4658 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4659 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4660 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4661 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4662
4663 if (debug)
4664 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4665
4666 /* For each of the static and global symbols defined, add them
4667 to the hash table of original symbols, so we can look up
4668 their values. */
4669
4670 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4671 sym_end_p1 = sym_start + fd_ptr->csym;
4672 for (sym = sym_start; sym < sym_end_p1; sym++)
4673 {
4674 switch ((st_t) sym->st)
4675 {
4676 default:
4677 break;
4678
4679 case st_Global:
4680 case st_Static:
4681 case st_Label:
4682 case st_Proc:
4683 case st_StaticProc:
4684 {
4685 auto symint_t hash_index;
4686 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4687 Size_t len = strlen (str);
4688 shash_t *shash_ptr = hash_string (str,
4689 (Ptrdiff_t) len,
4690 &orig_str_hash[0],
4691 &hash_index);
4692
4693 if (shash_ptr != (shash_t *) 0)
4694 error ("internal error, %s is already in original symbol table", str);
4695
4696 else
4697 {
4698 shash_ptr = allocate_shash ();
4699 shash_ptr->next = orig_str_hash[hash_index];
4700 orig_str_hash[hash_index] = shash_ptr;
4701
4702 shash_ptr->len = len;
4703 shash_ptr->indx = indexNil;
4704 shash_ptr->string = str;
4705 shash_ptr->sym_ptr = sym;
4706 }
4707 }
4708 break;
4709
4710 case st_End:
4711 if ((sc_t) sym->sc == sc_Text)
4712 {
4713 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4714
4715 if (*str != '\0')
4716 {
4717 Size_t len = strlen (str);
4718 shash_t *shash_ptr = hash_string (str,
4719 (Ptrdiff_t) len,
4720 &orig_str_hash[0],
4721 (symint_t *) 0);
4722
4723 if (shash_ptr != (shash_t *) 0)
4724 shash_ptr->end_ptr = sym;
4725 }
4726 }
4727 break;
4728
4729 }
4730 }
4731
4732 if (debug)
4733 {
4734 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4735 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4736 }
4737
4738 /* Go through each of the procedures in this file, and add the
4739 procedure pointer to the hash entry for the given name. */
4740
4741 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4742 proc_end_p1 = proc_start + fd_ptr->cpd;
4743 for (proc = proc_start; proc < proc_end_p1; proc++)
4744 {
4745 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4746 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4747 Size_t len = strlen (str);
4748 shash_t *shash_ptr = hash_string (str,
4749 (Ptrdiff_t) len,
4750 &orig_str_hash[0],
4751 (symint_t *) 0);
4752
4753 if (shash_ptr == (shash_t *) 0)
4754 error ("internal error, function %s is not in original symbol table", str);
4755
4756 else
4757 shash_ptr->proc_ptr = proc;
4758 }
4759
4760 if (debug)
4761 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4762
4763 }
4764 cur_file_ptr = first_file;
4765
4766
4767 /* Copy all of the object file up to the symbol table. Originally
4768 we were going to use ftruncate, but that doesn't seem to work
4769 on Ultrix 3.1.... */
4770
4771 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4772 pfatal_with_name (obj_in_name);
4773
4774 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4775 pfatal_with_name (object_name);
4776
4777 for (remaining = orig_file_header.f_symptr;
4778 remaining > 0;
4779 remaining -= num_write)
4780 {
4781 num_write
4782 = (remaining <= (int) sizeof (buffer))
4783 ? remaining : (int) sizeof (buffer);
4784 sys_read = fread ((PTR) buffer, 1, num_write, obj_in_stream);
4785 if (sys_read <= 0)
4786 pfatal_with_name (obj_in_name);
4787
4788 else if (sys_read != num_write)
4789 fatal ("wanted to read %d bytes from %s, system returned %d",
4790 num_write,
4791 obj_in_name,
4792 sys_read);
4793
4794 sys_write = fwrite (buffer, 1, num_write, object_stream);
4795 if (sys_write <= 0)
4796 pfatal_with_name (object_name);
4797
4798 else if (sys_write != num_write)
4799 fatal ("wrote %d bytes to %s, system returned %d",
4800 num_write,
4801 object_name,
4802 sys_write);
4803 }
4804 }
4805
4806 \f
4807 /* Ye olde main program. */
4808
4809 extern int main PARAMS ((int, char **));
4810
4811 int
4812 main (argc, argv)
4813 int argc;
4814 char **argv;
4815 {
4816 int iflag = 0;
4817 char *p = strrchr (argv[0], '/');
4818 char *num_end;
4819 int option;
4820 int i;
4821
4822 progname = (p != 0) ? p+1 : argv[0];
4823
4824 (void) signal (SIGSEGV, catch_signal);
4825 (void) signal (SIGBUS, catch_signal);
4826 (void) signal (SIGABRT, catch_signal);
4827
4828 #if !defined(__SABER__) && !defined(lint)
4829 if (sizeof (efdr_t) > PAGE_USIZE)
4830 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4831 (int) sizeof (efdr_t),
4832 (int) PAGE_USIZE);
4833
4834 if (sizeof (page_t) != PAGE_USIZE)
4835 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4836 (int) sizeof (page_t),
4837 (int) PAGE_USIZE);
4838
4839 #endif
4840
4841 alloc_counts[ alloc_type_none ].alloc_name = "none";
4842 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4843 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4844 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4845 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4846 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4847 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4848 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4849 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4850
4851 int_type_info = type_info_init;
4852 int_type_info.basic_type = bt_Int;
4853
4854 void_type_info = type_info_init;
4855 void_type_info.basic_type = bt_Void;
4856
4857 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4858 switch (option)
4859 {
4860 default:
4861 had_errors++;
4862 break;
4863
4864 case 'd':
4865 debug = strtol (optarg, &num_end, 0);
4866 if ((unsigned) debug > 4 || num_end == optarg)
4867 had_errors++;
4868
4869 break;
4870
4871 case 'I':
4872 if (rename_output || obj_in_name != (char *) 0)
4873 had_errors++;
4874 else
4875 rename_output = 1;
4876
4877 /* fall through to 'i' case. */
4878
4879 case 'i':
4880 if (obj_in_name == (char *) 0)
4881 {
4882 obj_in_name = optarg;
4883 iflag++;
4884 }
4885 else
4886 had_errors++;
4887 break;
4888
4889 case 'o':
4890 if (object_name == (char *) 0)
4891 object_name = optarg;
4892 else
4893 had_errors++;
4894 break;
4895
4896 case 'v':
4897 version++;
4898 break;
4899 }
4900
4901 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4902 obj_in_name = argv[--argc];
4903
4904 if (object_name == (char *) 0 && optind <= argc - 2)
4905 object_name = argv[--argc];
4906
4907 /* If there is an output name, but no input name use
4908 the same file for both, deleting the name between
4909 opening it for input and opening it for output. */
4910 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4911 {
4912 obj_in_name = object_name;
4913 delete_input = 1;
4914 }
4915
4916 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4917 {
4918 fprintf (stderr, _("Calling Sequence:\n"));
4919 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4920 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4921 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4922 fprintf (stderr, "\n");
4923 fprintf (stderr, _("Debug levels are:\n"));
4924 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4925 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4926 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4927 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4928 return 1;
4929 }
4930
4931
4932 if (version)
4933 {
4934 fprintf (stderr, _("mips-tfile version %s"), version_string);
4935 #ifdef TARGET_VERSION
4936 TARGET_VERSION;
4937 #endif
4938 fputc ('\n', stderr);
4939 }
4940
4941 if (obj_in_name == (char *) 0)
4942 obj_in_name = object_name;
4943
4944 if (rename_output && rename (object_name, obj_in_name) != 0)
4945 {
4946 char *buffer = (char *) allocate_multiple_pages (4);
4947 int len;
4948 int len2;
4949 int in_fd;
4950 int out_fd;
4951
4952 /* Rename failed, copy input file */
4953 in_fd = open (object_name, O_RDONLY, 0666);
4954 if (in_fd < 0)
4955 pfatal_with_name (object_name);
4956
4957 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4958 if (out_fd < 0)
4959 pfatal_with_name (obj_in_name);
4960
4961 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4962 {
4963 len2 = write (out_fd, buffer, len);
4964 if (len2 < 0)
4965 pfatal_with_name (object_name);
4966
4967 if (len != len2)
4968 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4969 }
4970
4971 free_multiple_pages ((page_t *) buffer, 4);
4972
4973 if (len < 0)
4974 pfatal_with_name (object_name);
4975
4976 if (close (in_fd) < 0)
4977 pfatal_with_name (object_name);
4978
4979 if (close (out_fd) < 0)
4980 pfatal_with_name (obj_in_name);
4981 }
4982
4983 /* Must open input before output, since the output may be the same file, and
4984 we need to get the input handle before truncating it. */
4985 obj_in_stream = fopen (obj_in_name, "r");
4986 if (obj_in_stream == (FILE *) 0)
4987 pfatal_with_name (obj_in_name);
4988
4989 if (delete_input && unlink (obj_in_name) != 0)
4990 pfatal_with_name (obj_in_name);
4991
4992 object_stream = fopen (object_name, "w");
4993 if (object_stream == (FILE *) 0)
4994 pfatal_with_name (object_name);
4995
4996 if (strcmp (argv[optind], "-") != 0)
4997 {
4998 input_name = argv[optind];
4999 if (freopen (argv[optind], "r", stdin) != stdin)
5000 pfatal_with_name (argv[optind]);
5001 }
5002
5003 copy_object (); /* scan & copy object file */
5004 parse_input (); /* scan all of input */
5005
5006 update_headers (); /* write out tfile */
5007 write_object ();
5008
5009 if (debug)
5010 {
5011 fprintf (stderr, "\n\tAllocation summary:\n\n");
5012 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
5013 if (alloc_counts[i].total_alloc)
5014 {
5015 fprintf (stderr,
5016 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5017 alloc_counts[i].alloc_name,
5018 alloc_counts[i].total_alloc,
5019 alloc_counts[i].total_free,
5020 alloc_counts[i].total_pages);
5021 }
5022 }
5023
5024 return (had_errors) ? 1 : 0;
5025 }
5026
5027 \f
5028 /* Catch a signal and exit without dumping core. */
5029
5030 STATIC void
5031 catch_signal (signum)
5032 int signum;
5033 {
5034 (void) signal (signum, SIG_DFL); /* just in case... */
5035 fatal ("%s", strsignal (signum));
5036 }
5037
5038 /* Print a fatal error message. NAME is the text.
5039 Also include a system error message based on `errno'. */
5040
5041 void
5042 pfatal_with_name (msg)
5043 const char *msg;
5044 {
5045 int save_errno = errno; /* just in case.... */
5046 if (line_number > 0)
5047 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5048 else
5049 fprintf (stderr, "%s:", progname);
5050
5051 errno = save_errno;
5052 if (errno == 0)
5053 fprintf (stderr, "[errno = 0] %s\n", msg);
5054 else
5055 perror (msg);
5056
5057 exit (1);
5058 }
5059
5060 \f
5061 /* Procedure to abort with an out of bounds error message. It has
5062 type int, so it can be used with an ?: expression within the
5063 ORIG_xxx macros, but the function never returns. */
5064
5065 static int
5066 out_of_bounds (indx, max, str, prog_line)
5067 symint_t indx; /* index that is out of bounds */
5068 symint_t max; /* maximum index */
5069 const char *str; /* string to print out */
5070 int prog_line; /* line number within mips-tfile.c */
5071 {
5072 if (indx < max) /* just in case */
5073 return 0;
5074
5075 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5076 progname, input_name, line_number, indx, str, max, prog_line);
5077
5078 exit (1);
5079 return 0; /* turn off warning messages */
5080 }
5081
5082 \f
5083 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5084 like sbrk's behind its back (or sbrk isn't available). If we use
5085 sbrk, we assume it gives us zeroed pages. */
5086
5087 #ifndef MALLOC_CHECK
5088 #ifdef USE_MALLOC
5089
5090 STATIC page_t *
5091 allocate_cluster (npages)
5092 Size_t npages;
5093 {
5094 page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5095
5096 if (debug > 3)
5097 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5098
5099 return value;
5100 }
5101
5102 #else /* USE_MALLOC */
5103
5104 STATIC page_t *
5105 allocate_cluster (npages)
5106 Size_t npages;
5107 {
5108 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5109 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5110
5111 if (offset != 0) /* align to a page boundary */
5112 {
5113 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5114 pfatal_with_name ("allocate_cluster");
5115
5116 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5117 }
5118
5119 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5120 pfatal_with_name ("allocate_cluster");
5121
5122 if (debug > 3)
5123 {
5124 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5125 (unsigned long) npages);
5126 fprintf (stderr, HOST_PTR_PRINTF, (PTR) ptr);
5127 fputs ("\n", stderr);
5128 }
5129
5130 return ptr;
5131 }
5132
5133 #endif /* USE_MALLOC */
5134
5135
5136 static page_t *cluster_ptr = NULL;
5137 static unsigned pages_left = 0;
5138
5139 #endif /* MALLOC_CHECK */
5140
5141
5142 /* Allocate some pages (which is initialized to 0). */
5143
5144 STATIC page_t *
5145 allocate_multiple_pages (npages)
5146 Size_t npages;
5147 {
5148 #ifndef MALLOC_CHECK
5149 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5150 {
5151 pages_left = MAX_CLUSTER_PAGES;
5152 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5153 }
5154
5155 if (npages <= pages_left)
5156 {
5157 page_t *ptr = cluster_ptr;
5158 cluster_ptr += npages;
5159 pages_left -= npages;
5160 return ptr;
5161 }
5162
5163 return allocate_cluster (npages);
5164
5165 #else /* MALLOC_CHECK */
5166 return (page_t *) xcalloc (npages, PAGE_SIZE);
5167
5168 #endif /* MALLOC_CHECK */
5169 }
5170
5171
5172 /* Release some pages. */
5173
5174 STATIC void
5175 free_multiple_pages (page_ptr, npages)
5176 page_t *page_ptr;
5177 Size_t npages;
5178 {
5179 #ifndef MALLOC_CHECK
5180 if (pages_left == 0)
5181 {
5182 cluster_ptr = page_ptr;
5183 pages_left = npages;
5184 }
5185
5186 else if ((page_ptr + npages) == cluster_ptr)
5187 {
5188 cluster_ptr -= npages;
5189 pages_left += npages;
5190 }
5191
5192 /* otherwise the page is not freed. If more than call is
5193 done, we probably should worry about it, but at present,
5194 the free pages is done right after an allocate. */
5195
5196 #else /* MALLOC_CHECK */
5197 free ((char *) page_ptr);
5198
5199 #endif /* MALLOC_CHECK */
5200 }
5201
5202
5203 /* Allocate one page (which is initialized to 0). */
5204
5205 STATIC page_t *
5206 allocate_page ()
5207 {
5208 #ifndef MALLOC_CHECK
5209 if (pages_left == 0)
5210 {
5211 pages_left = MAX_CLUSTER_PAGES;
5212 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5213 }
5214
5215 pages_left--;
5216 return cluster_ptr++;
5217
5218 #else /* MALLOC_CHECK */
5219 return (page_t *) xcalloc (1, PAGE_SIZE);
5220
5221 #endif /* MALLOC_CHECK */
5222 }
5223
5224 \f
5225 /* Allocate scoping information. */
5226
5227 STATIC scope_t *
5228 allocate_scope ()
5229 {
5230 scope_t *ptr;
5231 static scope_t initial_scope;
5232
5233 #ifndef MALLOC_CHECK
5234 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5235 if (ptr != (scope_t *) 0)
5236 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5237
5238 else
5239 {
5240 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5241 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5242
5243 if (unallocated == 0)
5244 {
5245 unallocated = PAGE_SIZE / sizeof (scope_t);
5246 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5247 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5248 }
5249
5250 ptr = &cur_page->scope[ --unallocated ];
5251 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5252 }
5253
5254 #else
5255 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5256
5257 #endif
5258
5259 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5260 *ptr = initial_scope;
5261 return ptr;
5262 }
5263
5264 /* Free scoping information. */
5265
5266 STATIC void
5267 free_scope (ptr)
5268 scope_t *ptr;
5269 {
5270 alloc_counts[ (int) alloc_type_scope ].total_free++;
5271
5272 #ifndef MALLOC_CHECK
5273 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5274 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5275
5276 #else
5277 free ((PTR) ptr);
5278 #endif
5279
5280 }
5281
5282 \f
5283 /* Allocate links for pages in a virtual array. */
5284
5285 STATIC vlinks_t *
5286 allocate_vlinks ()
5287 {
5288 vlinks_t *ptr;
5289 static vlinks_t initial_vlinks;
5290
5291 #ifndef MALLOC_CHECK
5292 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5293 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5294
5295 if (unallocated == 0)
5296 {
5297 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5298 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5299 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5300 }
5301
5302 ptr = &cur_page->vlinks[ --unallocated ];
5303 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5304
5305 #else
5306 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5307
5308 #endif
5309
5310 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5311 *ptr = initial_vlinks;
5312 return ptr;
5313 }
5314
5315 \f
5316 /* Allocate string hash buckets. */
5317
5318 STATIC shash_t *
5319 allocate_shash ()
5320 {
5321 shash_t *ptr;
5322 static shash_t initial_shash;
5323
5324 #ifndef MALLOC_CHECK
5325 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5326 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5327
5328 if (unallocated == 0)
5329 {
5330 unallocated = PAGE_SIZE / sizeof (shash_t);
5331 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5332 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5333 }
5334
5335 ptr = &cur_page->shash[ --unallocated ];
5336 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5337
5338 #else
5339 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5340
5341 #endif
5342
5343 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5344 *ptr = initial_shash;
5345 return ptr;
5346 }
5347
5348 \f
5349 /* Allocate type hash buckets. */
5350
5351 STATIC thash_t *
5352 allocate_thash ()
5353 {
5354 thash_t *ptr;
5355 static thash_t initial_thash;
5356
5357 #ifndef MALLOC_CHECK
5358 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5359 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5360
5361 if (unallocated == 0)
5362 {
5363 unallocated = PAGE_SIZE / sizeof (thash_t);
5364 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5365 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5366 }
5367
5368 ptr = &cur_page->thash[ --unallocated ];
5369 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5370
5371 #else
5372 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5373
5374 #endif
5375
5376 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5377 *ptr = initial_thash;
5378 return ptr;
5379 }
5380
5381 \f
5382 /* Allocate structure, union, or enum tag information. */
5383
5384 STATIC tag_t *
5385 allocate_tag ()
5386 {
5387 tag_t *ptr;
5388 static tag_t initial_tag;
5389
5390 #ifndef MALLOC_CHECK
5391 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5392 if (ptr != (tag_t *) 0)
5393 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5394
5395 else
5396 {
5397 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5398 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5399
5400 if (unallocated == 0)
5401 {
5402 unallocated = PAGE_SIZE / sizeof (tag_t);
5403 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5404 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5405 }
5406
5407 ptr = &cur_page->tag[ --unallocated ];
5408 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5409 }
5410
5411 #else
5412 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5413
5414 #endif
5415
5416 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5417 *ptr = initial_tag;
5418 return ptr;
5419 }
5420
5421 /* Free scoping information. */
5422
5423 STATIC void
5424 free_tag (ptr)
5425 tag_t *ptr;
5426 {
5427 alloc_counts[ (int) alloc_type_tag ].total_free++;
5428
5429 #ifndef MALLOC_CHECK
5430 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5431 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5432
5433 #else
5434 free ((PTR) ptr);
5435 #endif
5436
5437 }
5438
5439 \f
5440 /* Allocate forward reference to a yet unknown tag. */
5441
5442 STATIC forward_t *
5443 allocate_forward ()
5444 {
5445 forward_t *ptr;
5446 static forward_t initial_forward;
5447
5448 #ifndef MALLOC_CHECK
5449 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5450 if (ptr != (forward_t *) 0)
5451 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5452
5453 else
5454 {
5455 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5456 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5457
5458 if (unallocated == 0)
5459 {
5460 unallocated = PAGE_SIZE / sizeof (forward_t);
5461 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5462 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5463 }
5464
5465 ptr = &cur_page->forward[ --unallocated ];
5466 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5467 }
5468
5469 #else
5470 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5471
5472 #endif
5473
5474 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5475 *ptr = initial_forward;
5476 return ptr;
5477 }
5478
5479 /* Free scoping information. */
5480
5481 STATIC void
5482 free_forward (ptr)
5483 forward_t *ptr;
5484 {
5485 alloc_counts[ (int) alloc_type_forward ].total_free++;
5486
5487 #ifndef MALLOC_CHECK
5488 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5489 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5490
5491 #else
5492 free ((PTR) ptr);
5493 #endif
5494
5495 }
5496
5497 \f
5498 /* Allocate head of type hash list. */
5499
5500 STATIC thead_t *
5501 allocate_thead ()
5502 {
5503 thead_t *ptr;
5504 static thead_t initial_thead;
5505
5506 #ifndef MALLOC_CHECK
5507 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5508 if (ptr != (thead_t *) 0)
5509 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5510
5511 else
5512 {
5513 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5514 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5515
5516 if (unallocated == 0)
5517 {
5518 unallocated = PAGE_SIZE / sizeof (thead_t);
5519 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5520 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5521 }
5522
5523 ptr = &cur_page->thead[ --unallocated ];
5524 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5525 }
5526
5527 #else
5528 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5529
5530 #endif
5531
5532 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5533 *ptr = initial_thead;
5534 return ptr;
5535 }
5536
5537 /* Free scoping information. */
5538
5539 STATIC void
5540 free_thead (ptr)
5541 thead_t *ptr;
5542 {
5543 alloc_counts[ (int) alloc_type_thead ].total_free++;
5544
5545 #ifndef MALLOC_CHECK
5546 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5547 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5548
5549 #else
5550 free ((PTR) ptr);
5551 #endif
5552
5553 }
5554
5555 #endif /* MIPS_DEBUGGING_INFO */
5556
5557 \f
5558 /* Output an error message and exit */
5559
5560 /*VARARGS*/
5561 void
5562 fatal VPARAMS ((const char *format, ...))
5563 {
5564 VA_OPEN (ap, format);
5565 VA_FIXEDARG (ap, const char *, format);
5566
5567 if (line_number > 0)
5568 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5569 else
5570 fprintf (stderr, "%s:", progname);
5571
5572 vfprintf (stderr, format, ap);
5573 VA_CLOSE (ap);
5574 fprintf (stderr, "\n");
5575 if (line_number > 0)
5576 fprintf (stderr, "line:\t%s\n", cur_line_start);
5577
5578 saber_stop ();
5579 exit (1);
5580 }
5581
5582 /*VARARGS*/
5583 void
5584 error VPARAMS ((const char *format, ...))
5585 {
5586 VA_OPEN (ap, format);
5587 VA_FIXEDARG (ap, char *, format);
5588
5589 if (line_number > 0)
5590 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5591 else
5592 fprintf (stderr, "%s:", progname);
5593
5594 vfprintf (stderr, format, ap);
5595 fprintf (stderr, "\n");
5596 if (line_number > 0)
5597 fprintf (stderr, "line:\t%s\n", cur_line_start);
5598
5599 had_errors++;
5600 VA_CLOSE (ap);
5601
5602 saber_stop ();
5603 }
5604
5605 /* More 'friendly' abort that prints the line and file.
5606 config.h can #define abort fancy_abort if you like that sort of thing. */
5607
5608 void
5609 fancy_abort ()
5610 {
5611 fatal ("internal abort");
5612 }
5613 \f
5614
5615 /* When `malloc.c' is compiled with `rcheck' defined,
5616 it calls this function to report clobberage. */
5617
5618 void
5619 botch (s)
5620 const char *s;
5621 {
5622 fatal ("%s", s);
5623 }
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