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[gcc.git] / gcc / mips-tfile.c
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc.
6 Contributed by Michael Meissner, meissner@osf.org
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24 \f
25 /* Here is a brief description of the MIPS ECOFF symbol table. The
26 MIPS symbol table has the following pieces:
27
28 Symbolic Header
29 |
30 +-- Auxiliary Symbols
31 |
32 +-- Dense number table
33 |
34 +-- Optimizer Symbols
35 |
36 +-- External Strings
37 |
38 +-- External Symbols
39 |
40 +-- Relative file descriptors
41 |
42 +-- File table
43 |
44 +-- Procedure table
45 |
46 +-- Line number table
47 |
48 +-- Local Strings
49 |
50 +-- Local Symbols
51
52 The symbolic header points to each of the other tables, and also
53 contains the number of entries. It also contains a magic number
54 and MIPS compiler version number, such as 2.0.
55
56 The auxiliary table is a series of 32 bit integers, that are
57 referenced as needed from the local symbol table. Unlike standard
58 COFF, the aux. information does not follow the symbol that uses
59 it, but rather is a separate table. In theory, this would allow
60 the MIPS compilers to collapse duplicate aux. entries, but I've not
61 noticed this happening with the 1.31 compiler suite. The different
62 types of aux. entries are:
63
64 1) dnLow: Low bound on array dimension.
65
66 2) dnHigh: High bound on array dimension.
67
68 3) isym: Index to the local symbol which is the start of the
69 function for the end of function first aux. entry.
70
71 4) width: Width of structures and bitfields.
72
73 5) count: Count of ranges for variant part.
74
75 6) rndx: A relative index into the symbol table. The relative
76 index field has two parts: rfd which is a pointer into the
77 relative file index table or ST_RFDESCAPE which says the next
78 aux. entry is the file number, and index: which is the pointer
79 into the local symbol within a given file table. This is for
80 things like references to types defined in another file.
81
82 7) Type information: This is like the COFF type bits, except it
83 is 32 bits instead of 16; they still have room to add new
84 basic types; and they can handle more than 6 levels of array,
85 pointer, function, etc. Each type information field contains
86 the following structure members:
87
88 a) fBitfield: a bit that says this is a bitfield, and the
89 size in bits follows as the next aux. entry.
90
91 b) continued: a bit that says the next aux. entry is a
92 continuation of the current type information (in case
93 there are more than 6 levels of array/ptr/function).
94
95 c) bt: an integer containing the base type before adding
96 array, pointer, function, etc. qualifiers. The
97 current base types that I have documentation for are:
98
99 btNil -- undefined
100 btAdr -- address - integer same size as ptr
101 btChar -- character
102 btUChar -- unsigned character
103 btShort -- short
104 btUShort -- unsigned short
105 btInt -- int
106 btUInt -- unsigned int
107 btLong -- long
108 btULong -- unsigned long
109 btFloat -- float (real)
110 btDouble -- Double (real)
111 btStruct -- Structure (Record)
112 btUnion -- Union (variant)
113 btEnum -- Enumerated
114 btTypedef -- defined via a typedef isymRef
115 btRange -- subrange of int
116 btSet -- pascal sets
117 btComplex -- fortran complex
118 btDComplex -- fortran double complex
119 btIndirect -- forward or unnamed typedef
120 btFixedDec -- Fixed Decimal
121 btFloatDec -- Float Decimal
122 btString -- Varying Length Character String
123 btBit -- Aligned Bit String
124 btPicture -- Picture
125 btVoid -- Void (MIPS cc revision >= 2.00)
126
127 d) tq0 - tq5: type qualifier fields as needed. The
128 current type qualifier fields I have documentation for
129 are:
130
131 tqNil -- no more qualifiers
132 tqPtr -- pointer
133 tqProc -- procedure
134 tqArray -- array
135 tqFar -- 8086 far pointers
136 tqVol -- volatile
137
138
139 The dense number table is used in the front ends, and disappears by
140 the time the .o is created.
141
142 With the 1.31 compiler suite, the optimization symbols don't seem
143 to be used as far as I can tell.
144
145 The linker is the first entity that creates the relative file
146 descriptor table, and I believe it is used so that the individual
147 file table pointers don't have to be rewritten when the objects are
148 merged together into the program file.
149
150 Unlike COFF, the basic symbol & string tables are split into
151 external and local symbols/strings. The relocation information
152 only goes off of the external symbol table, and the debug
153 information only goes off of the internal symbol table. The
154 external symbols can have links to an appropriate file index and
155 symbol within the file to give it the appropriate type information.
156 Because of this, the external symbols are actually larger than the
157 internal symbols (to contain the link information), and contain the
158 local symbol structure as a member, though this member is not the
159 first member of the external symbol structure (!). I suspect this
160 split is to make strip easier to deal with.
161
162 Each file table has offsets for where the line numbers, local
163 strings, local symbols, and procedure table starts from within the
164 global tables, and the indexs are reset to 0 for each of those
165 tables for the file.
166
167 The procedure table contains the binary equivalents of the .ent
168 (start of the function address), .frame (what register is the
169 virtual frame pointer, constant offset from the register to obtain
170 the VFP, and what register holds the return address), .mask/.fmask
171 (bitmask of saved registers, and where the first register is stored
172 relative to the VFP) assembler directives. It also contains the
173 low and high bounds of the line numbers if debugging is turned on.
174
175 The line number table is a compressed form of the normal COFF line
176 table. Each line number entry is either 1 or 3 bytes long, and
177 contains a signed delta from the previous line, and an unsigned
178 count of the number of instructions this statement takes.
179
180 The local symbol table contains the following fields:
181
182 1) iss: index to the local string table giving the name of the
183 symbol.
184
185 2) value: value of the symbol (address, register number, etc.).
186
187 3) st: symbol type. The current symbol types are:
188
189 stNil -- Nuthin' special
190 stGlobal -- external symbol
191 stStatic -- static
192 stParam -- procedure argument
193 stLocal -- local variable
194 stLabel -- label
195 stProc -- External Procedure
196 stBlock -- beginning of block
197 stEnd -- end (of anything)
198 stMember -- member (of anything)
199 stTypedef -- type definition
200 stFile -- file name
201 stRegReloc -- register relocation
202 stForward -- forwarding address
203 stStaticProc -- Static procedure
204 stConstant -- const
205
206 4) sc: storage class. The current storage classes are:
207
208 scText -- text symbol
209 scData -- initialized data symbol
210 scBss -- un-initialized data symbol
211 scRegister -- value of symbol is register number
212 scAbs -- value of symbol is absolute
213 scUndefined -- who knows?
214 scCdbLocal -- variable's value is IN se->va.??
215 scBits -- this is a bit field
216 scCdbSystem -- value is IN debugger's address space
217 scRegImage -- register value saved on stack
218 scInfo -- symbol contains debugger information
219 scUserStruct -- addr in struct user for current process
220 scSData -- load time only small data
221 scSBss -- load time only small common
222 scRData -- load time only read only data
223 scVar -- Var parameter (fortranpascal)
224 scCommon -- common variable
225 scSCommon -- small common
226 scVarRegister -- Var parameter in a register
227 scVariant -- Variant record
228 scSUndefined -- small undefined(external) data
229 scInit -- .init section symbol
230
231 5) index: pointer to a local symbol or aux. entry.
232
233
234
235 For the following program:
236
237 #include <stdio.h>
238
239 main(){
240 printf("Hello World!\n");
241 return 0;
242 }
243
244 Mips-tdump produces the following information:
245
246 Global file header:
247 magic number 0x162
248 # sections 2
249 timestamp 645311799, Wed Jun 13 17:16:39 1990
250 symbolic header offset 284
251 symbolic header size 96
252 optional header 56
253 flags 0x0
254
255 Symbolic header, magic number = 0x7009, vstamp = 1.31:
256
257 Info Offset Number Bytes
258 ==== ====== ====== =====
259
260 Line numbers 380 4 4 [13]
261 Dense numbers 0 0 0
262 Procedures Tables 384 1 52
263 Local Symbols 436 16 192
264 Optimization Symbols 0 0 0
265 Auxiliary Symbols 628 39 156
266 Local Strings 784 80 80
267 External Strings 864 144 144
268 File Tables 1008 2 144
269 Relative Files 0 0 0
270 External Symbols 1152 20 320
271
272 File #0, "hello2.c"
273
274 Name index = 1 Readin = No
275 Merge = No Endian = LITTLE
276 Debug level = G2 Language = C
277 Adr = 0x00000000
278
279 Info Start Number Size Offset
280 ==== ===== ====== ==== ======
281 Local strings 0 15 15 784
282 Local symbols 0 6 72 436
283 Line numbers 0 13 13 380
284 Optimization symbols 0 0 0 0
285 Procedures 0 1 52 384
286 Auxiliary symbols 0 14 56 628
287 Relative Files 0 0 0 0
288
289 There are 6 local symbols, starting at 436
290
291 Symbol# 0: "hello2.c"
292 End+1 symbol = 6
293 String index = 1
294 Storage class = Text Index = 6
295 Symbol type = File Value = 0
296
297 Symbol# 1: "main"
298 End+1 symbol = 5
299 Type = int
300 String index = 10
301 Storage class = Text Index = 12
302 Symbol type = Proc Value = 0
303
304 Symbol# 2: ""
305 End+1 symbol = 4
306 String index = 0
307 Storage class = Text Index = 4
308 Symbol type = Block Value = 8
309
310 Symbol# 3: ""
311 First symbol = 2
312 String index = 0
313 Storage class = Text Index = 2
314 Symbol type = End Value = 28
315
316 Symbol# 4: "main"
317 First symbol = 1
318 String index = 10
319 Storage class = Text Index = 1
320 Symbol type = End Value = 52
321
322 Symbol# 5: "hello2.c"
323 First symbol = 0
324 String index = 1
325 Storage class = Text Index = 0
326 Symbol type = End Value = 0
327
328 There are 14 auxiliary table entries, starting at 628.
329
330 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344
345 There are 1 procedure descriptor entries, starting at 0.
346
347 Procedure descriptor 0:
348 Name index = 10 Name = "main"
349 .mask 0x80000000,-4 .fmask 0x00000000,0
350 .frame $29,24,$31
351 Opt. start = -1 Symbols start = 1
352 First line # = 3 Last line # = 6
353 Line Offset = 0 Address = 0x00000000
354
355 There are 4 bytes holding line numbers, starting at 380.
356 Line 3, delta 0, count 2
357 Line 4, delta 1, count 3
358 Line 5, delta 1, count 2
359 Line 6, delta 1, count 6
360
361 File #1, "/usr/include/stdio.h"
362
363 Name index = 1 Readin = No
364 Merge = Yes Endian = LITTLE
365 Debug level = G2 Language = C
366 Adr = 0x00000000
367
368 Info Start Number Size Offset
369 ==== ===== ====== ==== ======
370 Local strings 15 65 65 799
371 Local symbols 6 10 120 508
372 Line numbers 0 0 0 380
373 Optimization symbols 0 0 0 0
374 Procedures 1 0 0 436
375 Auxiliary symbols 14 25 100 684
376 Relative Files 0 0 0 0
377
378 There are 10 local symbols, starting at 442
379
380 Symbol# 0: "/usr/include/stdio.h"
381 End+1 symbol = 10
382 String index = 1
383 Storage class = Text Index = 10
384 Symbol type = File Value = 0
385
386 Symbol# 1: "_iobuf"
387 End+1 symbol = 9
388 String index = 22
389 Storage class = Info Index = 9
390 Symbol type = Block Value = 20
391
392 Symbol# 2: "_cnt"
393 Type = int
394 String index = 29
395 Storage class = Info Index = 4
396 Symbol type = Member Value = 0
397
398 Symbol# 3: "_ptr"
399 Type = ptr to char
400 String index = 34
401 Storage class = Info Index = 15
402 Symbol type = Member Value = 32
403
404 Symbol# 4: "_base"
405 Type = ptr to char
406 String index = 39
407 Storage class = Info Index = 16
408 Symbol type = Member Value = 64
409
410 Symbol# 5: "_bufsiz"
411 Type = int
412 String index = 45
413 Storage class = Info Index = 4
414 Symbol type = Member Value = 96
415
416 Symbol# 6: "_flag"
417 Type = short
418 String index = 53
419 Storage class = Info Index = 3
420 Symbol type = Member Value = 128
421
422 Symbol# 7: "_file"
423 Type = char
424 String index = 59
425 Storage class = Info Index = 2
426 Symbol type = Member Value = 144
427
428 Symbol# 8: ""
429 First symbol = 1
430 String index = 0
431 Storage class = Info Index = 1
432 Symbol type = End Value = 0
433
434 Symbol# 9: "/usr/include/stdio.h"
435 First symbol = 0
436 String index = 1
437 Storage class = Text Index = 0
438 Symbol type = End Value = 0
439
440 There are 25 auxiliary table entries, starting at 642.
441
442 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467
468 There are 0 procedure descriptor entries, starting at 1.
469
470 There are 20 external symbols, starting at 1152
471
472 Symbol# 0: "_iob"
473 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474 String index = 0 Ifd = 1
475 Storage class = Nil Index = 17
476 Symbol type = Global Value = 60
477
478 Symbol# 1: "fopen"
479 String index = 5 Ifd = 1
480 Storage class = Nil Index = 1048575
481 Symbol type = Proc Value = 0
482
483 Symbol# 2: "fdopen"
484 String index = 11 Ifd = 1
485 Storage class = Nil Index = 1048575
486 Symbol type = Proc Value = 0
487
488 Symbol# 3: "freopen"
489 String index = 18 Ifd = 1
490 Storage class = Nil Index = 1048575
491 Symbol type = Proc Value = 0
492
493 Symbol# 4: "popen"
494 String index = 26 Ifd = 1
495 Storage class = Nil Index = 1048575
496 Symbol type = Proc Value = 0
497
498 Symbol# 5: "tmpfile"
499 String index = 32 Ifd = 1
500 Storage class = Nil Index = 1048575
501 Symbol type = Proc Value = 0
502
503 Symbol# 6: "ftell"
504 String index = 40 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 7: "rewind"
509 String index = 46 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 8: "setbuf"
514 String index = 53 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 9: "setbuffer"
519 String index = 60 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 10: "setlinebuf"
524 String index = 70 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 11: "fgets"
529 String index = 81 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 12: "gets"
534 String index = 87 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 13: "ctermid"
539 String index = 92 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 14: "cuserid"
544 String index = 100 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 15: "tempnam"
549 String index = 108 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 16: "tmpnam"
554 String index = 116 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 17: "sprintf"
559 String index = 123 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 18: "main"
564 Type = int
565 String index = 131 Ifd = 0
566 Storage class = Text Index = 1
567 Symbol type = Proc Value = 0
568
569 Symbol# 19: "printf"
570 String index = 136 Ifd = 0
571 Storage class = Undefined Index = 1048575
572 Symbol type = Proc Value = 0
573
574 The following auxiliary table entries were unused:
575
576 #0 0 0x00000000 void
577 #2 8 0x00000008 char
578 #3 16 0x00000010 short
579 #4 24 0x00000018 int
580 #5 32 0x00000020 long
581 #6 40 0x00000028 float
582 #7 44 0x0000002c double
583 #8 12 0x0000000c unsigned char
584 #9 20 0x00000014 unsigned short
585 #10 28 0x0000001c unsigned int
586 #11 36 0x00000024 unsigned long
587 #14 0 0x00000000 void
588 #15 24 0x00000018 int
589 #19 32 0x00000020 long
590 #20 40 0x00000028 float
591 #21 44 0x0000002c double
592 #22 12 0x0000000c unsigned char
593 #23 20 0x00000014 unsigned short
594 #24 28 0x0000001c unsigned int
595 #25 36 0x00000024 unsigned long
596 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597
598 */
599 \f
600
601 #ifdef __STDC__
602 #include <stdarg.h>
603 #else
604 #include <varargs.h>
605 #endif
606 #include "config.h"
607 #include <stdio.h>
608
609 #ifndef __SABER__
610 #define saber_stop()
611 #endif
612
613 #ifndef __LINE__
614 #define __LINE__ 0
615 #endif
616
617 #ifdef __STDC__
618 typedef void *PTR_T;
619 typedef const void *CPTR_T;
620 #define __proto(x) x
621 #ifndef VPROTO
622 #define PVPROTO(ARGS) ARGS
623 #define VPROTO(ARGS) ARGS
624 #define VA_START(va_list,var) va_start(va_list,var)
625 #endif
626 #else
627
628 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
629 typedef void *PTR_T;
630 typedef void *CPTR_T;
631
632 #else
633 typedef char *PTR_T; /* Ultrix 3.1 */
634 typedef char *CPTR_T;
635 #endif
636
637 #define __proto(x) ()
638 #define const
639 #ifndef VPROTO
640 #define PVPROTO(ARGS) ()
641 #define VPROTO(ARGS) (va_alist) va_dcl
642 #define VA_START(va_list,var) va_start(va_list)
643 #endif
644 #endif
645
646 /* Do to size_t being defined in sys/types.h and different
647 in stddef.h, we have to do this by hand..... Note, these
648 types are correct for MIPS based systems, and may not be
649 correct for other systems. Ultrix 4.0 and Silicon Graphics
650 have this fixed, but since the following is correct, and
651 the fact that including stddef.h gets you GCC's version
652 instead of the standard one it's not worth it to fix it. */
653
654 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
655 #define Size_t long unsigned int
656 #else
657 #define Size_t unsigned int
658 #endif
659 #define Ptrdiff_t long
660
661 /* The following might be called from obstack or malloc,
662 so they can't be static. */
663
664 extern void pfatal_with_name
665 __proto((char *));
666 extern void fancy_abort __proto((void));
667 void botch __proto((const char *));
668 extern PTR_T xmalloc __proto((Size_t));
669 extern PTR_T xcalloc __proto((Size_t, Size_t));
670 extern PTR_T xrealloc __proto((PTR_T, Size_t));
671 extern void xfree __proto((PTR_T));
672
673 #ifdef HAVE_VPRINTF
674 extern void fatal PVPROTO((char *format, ...));
675 extern void error PVPROTO((char *format, ...));
676 #else
677 /* We must not provide any prototype here, even if ANSI C. */
678 extern void fatal __proto(());
679 extern void error __proto(());
680 #endif
681
682 \f
683 #ifndef MIPS_DEBUGGING_INFO
684
685 static int line_number;
686 static int cur_line_start;
687 static int debug;
688 static int had_errors;
689 static char *progname;
690 static char *input_name;
691
692 int
693 main ()
694 {
695 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
696 exit (1);
697 }
698
699 #else /* MIPS_DEBUGGING defined */
700 \f
701 /* The local and global symbols have a field index, so undo any defines
702 of index -> strchr and rindex -> strrchr. */
703
704 #undef rindex
705 #undef index
706
707 #include <sys/types.h>
708 #include <string.h>
709 #include <ctype.h>
710 #include <fcntl.h>
711 #include <errno.h>
712 #include <signal.h>
713 #include <sys/stat.h>
714
715 #ifndef CROSS_COMPILE
716 #include <a.out.h>
717 #else
718 #include "mips/a.out.h"
719 #endif /* CROSS_COMPILE */
720
721 #if defined (USG) || defined (NO_STAB_H)
722 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
723 #else
724 #include <stab.h> /* On BSD, use the system's stab.h. */
725 #endif /* not USG */
726
727 #ifdef __GNU_STAB__
728 #define STAB_CODE_TYPE enum __stab_debug_code
729 #else
730 #define STAB_CODE_TYPE int
731 #endif
732
733 #ifdef _OSF_SOURCE
734 #define HAS_STDLIB_H
735 #define HAS_UNISTD_H
736 #endif
737
738 #ifdef HAS_STDLIB_H
739 #include <stdlib.h>
740 #endif
741
742 #ifdef HAS_UNISTD_H
743 #include <unistd.h>
744 #endif
745
746 #ifndef errno
747 extern int errno; /* MIPS errno.h doesn't declare this */
748 #endif
749
750 #ifndef MALLOC_CHECK
751 #ifdef __SABER__
752 #define MALLOC_CHECK
753 #endif
754 #endif
755
756 #define IS_ASM_IDENT(ch) \
757 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
758
759 \f
760 /* Redefinition of of storage classes as an enumeration for better
761 debugging. */
762
763 typedef enum sc {
764 sc_Nil = scNil, /* no storage class */
765 sc_Text = scText, /* text symbol */
766 sc_Data = scData, /* initialized data symbol */
767 sc_Bss = scBss, /* un-initialized data symbol */
768 sc_Register = scRegister, /* value of symbol is register number */
769 sc_Abs = scAbs, /* value of symbol is absolute */
770 sc_Undefined = scUndefined, /* who knows? */
771 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
772 sc_Bits = scBits, /* this is a bit field */
773 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
774 sc_RegImage = scRegImage, /* register value saved on stack */
775 sc_Info = scInfo, /* symbol contains debugger information */
776 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
777 sc_SData = scSData, /* load time only small data */
778 sc_SBss = scSBss, /* load time only small common */
779 sc_RData = scRData, /* load time only read only data */
780 sc_Var = scVar, /* Var parameter (fortran,pascal) */
781 sc_Common = scCommon, /* common variable */
782 sc_SCommon = scSCommon, /* small common */
783 sc_VarRegister = scVarRegister, /* Var parameter in a register */
784 sc_Variant = scVariant, /* Variant record */
785 sc_SUndefined = scSUndefined, /* small undefined(external) data */
786 sc_Init = scInit, /* .init section symbol */
787 sc_Max = scMax /* Max storage class+1 */
788 } sc_t;
789
790 /* Redefinition of symbol type. */
791
792 typedef enum st {
793 st_Nil = stNil, /* Nuthin' special */
794 st_Global = stGlobal, /* external symbol */
795 st_Static = stStatic, /* static */
796 st_Param = stParam, /* procedure argument */
797 st_Local = stLocal, /* local variable */
798 st_Label = stLabel, /* label */
799 st_Proc = stProc, /* " " Procedure */
800 st_Block = stBlock, /* beginning of block */
801 st_End = stEnd, /* end (of anything) */
802 st_Member = stMember, /* member (of anything - struct/union/enum */
803 st_Typedef = stTypedef, /* type definition */
804 st_File = stFile, /* file name */
805 st_RegReloc = stRegReloc, /* register relocation */
806 st_Forward = stForward, /* forwarding address */
807 st_StaticProc = stStaticProc, /* load time only static procs */
808 st_Constant = stConstant, /* const */
809 st_Str = stStr, /* string */
810 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
811 st_Expr = stExpr, /* 2+2 vs. 4 */
812 st_Type = stType, /* post-coercion SER */
813 st_Max = stMax /* max type+1 */
814 } st_t;
815
816 /* Redefinition of type qualifiers. */
817
818 typedef enum tq {
819 tq_Nil = tqNil, /* bt is what you see */
820 tq_Ptr = tqPtr, /* pointer */
821 tq_Proc = tqProc, /* procedure */
822 tq_Array = tqArray, /* duh */
823 tq_Far = tqFar, /* longer addressing - 8086/8 land */
824 tq_Vol = tqVol, /* volatile */
825 tq_Max = tqMax /* Max type qualifier+1 */
826 } tq_t;
827
828 /* Redefinition of basic types. */
829
830 typedef enum bt {
831 bt_Nil = btNil, /* undefined */
832 bt_Adr = btAdr, /* address - integer same size as pointer */
833 bt_Char = btChar, /* character */
834 bt_UChar = btUChar, /* unsigned character */
835 bt_Short = btShort, /* short */
836 bt_UShort = btUShort, /* unsigned short */
837 bt_Int = btInt, /* int */
838 bt_UInt = btUInt, /* unsigned int */
839 bt_Long = btLong, /* long */
840 bt_ULong = btULong, /* unsigned long */
841 bt_Float = btFloat, /* float (real) */
842 bt_Double = btDouble, /* Double (real) */
843 bt_Struct = btStruct, /* Structure (Record) */
844 bt_Union = btUnion, /* Union (variant) */
845 bt_Enum = btEnum, /* Enumerated */
846 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
847 bt_Range = btRange, /* subrange of int */
848 bt_Set = btSet, /* pascal sets */
849 bt_Complex = btComplex, /* fortran complex */
850 bt_DComplex = btDComplex, /* fortran double complex */
851 bt_Indirect = btIndirect, /* forward or unnamed typedef */
852 bt_FixedDec = btFixedDec, /* Fixed Decimal */
853 bt_FloatDec = btFloatDec, /* Float Decimal */
854 bt_String = btString, /* Varying Length Character String */
855 bt_Bit = btBit, /* Aligned Bit String */
856 bt_Picture = btPicture, /* Picture */
857
858 #ifdef btVoid
859 bt_Void = btVoid, /* Void */
860 #else
861 #define bt_Void bt_Nil
862 #endif
863
864 bt_Max = btMax /* Max basic type+1 */
865 } bt_t;
866
867 \f
868
869 /* Basic COFF storage classes. */
870 enum coff_storage {
871 C_EFCN = -1,
872 C_NULL = 0,
873 C_AUTO = 1,
874 C_EXT = 2,
875 C_STAT = 3,
876 C_REG = 4,
877 C_EXTDEF = 5,
878 C_LABEL = 6,
879 C_ULABEL = 7,
880 C_MOS = 8,
881 C_ARG = 9,
882 C_STRTAG = 10,
883 C_MOU = 11,
884 C_UNTAG = 12,
885 C_TPDEF = 13,
886 C_USTATIC = 14,
887 C_ENTAG = 15,
888 C_MOE = 16,
889 C_REGPARM = 17,
890 C_FIELD = 18,
891 C_BLOCK = 100,
892 C_FCN = 101,
893 C_EOS = 102,
894 C_FILE = 103,
895 C_LINE = 104,
896 C_ALIAS = 105,
897 C_HIDDEN = 106,
898 C_MAX = 107
899 } coff_storage_t;
900
901 /* Regular COFF fundamental type. */
902 typedef enum coff_type {
903 T_NULL = 0,
904 T_ARG = 1,
905 T_CHAR = 2,
906 T_SHORT = 3,
907 T_INT = 4,
908 T_LONG = 5,
909 T_FLOAT = 6,
910 T_DOUBLE = 7,
911 T_STRUCT = 8,
912 T_UNION = 9,
913 T_ENUM = 10,
914 T_MOE = 11,
915 T_UCHAR = 12,
916 T_USHORT = 13,
917 T_UINT = 14,
918 T_ULONG = 15,
919 T_MAX = 16
920 } coff_type_t;
921
922 /* Regular COFF derived types. */
923 typedef enum coff_dt {
924 DT_NON = 0,
925 DT_PTR = 1,
926 DT_FCN = 2,
927 DT_ARY = 3,
928 DT_MAX = 4
929 } coff_dt_t;
930
931 #define N_BTMASK 017 /* bitmask to isolate basic type */
932 #define N_TMASK 003 /* bitmask to isolate derived type */
933 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
934 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
935 #define N_TQ 6 /* # of type qualifiers */
936
937 /* States for whether to hash type or not. */
938 typedef enum hash_state {
939 hash_no = 0, /* don't hash type */
940 hash_yes = 1, /* ok to hash type, or use previous hash */
941 hash_record = 2 /* ok to record hash, but don't use prev. */
942 } hash_state_t;
943
944
945 /* Types of different sized allocation requests. */
946 enum alloc_type {
947 alloc_type_none, /* dummy value */
948 alloc_type_scope, /* nested scopes linked list */
949 alloc_type_vlinks, /* glue linking pages in varray */
950 alloc_type_shash, /* string hash element */
951 alloc_type_thash, /* type hash element */
952 alloc_type_tag, /* struct/union/tag element */
953 alloc_type_forward, /* element to hold unknown tag */
954 alloc_type_thead, /* head of type hash list */
955 alloc_type_varray, /* general varray allocation */
956 alloc_type_last /* last+1 element for array bounds */
957 };
958
959 \f
960 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
961 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
962
963
964 /* Structures to provide n-number of virtual arrays, each of which can
965 grow linearly, and which are written in the object file as sequential
966 pages. On systems with a BSD malloc that define USE_MALLOC, the
967 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
968 adds it's overhead, and rounds up to the next power of 2. Pages are
969 linked together via a linked list.
970
971 If PAGE_SIZE is > 4096, the string length in the shash_t structure
972 can't be represented (assuming there are strings > 4096 bytes). */
973
974 #ifndef PAGE_SIZE
975 #define PAGE_SIZE 4096 /* size of varray pages */
976 #endif
977
978 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
979
980
981 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
982 #ifndef USE_MALLOC /* in one memory request */
983 #define MAX_CLUSTER_PAGES 64
984 #else
985 #define MAX_CLUSTER_PAGES 63
986 #endif
987 #endif
988
989
990 /* Linked list connecting separate page allocations. */
991 typedef struct vlinks {
992 struct vlinks *prev; /* previous set of pages */
993 struct vlinks *next; /* next set of pages */
994 union page *datum; /* start of page */
995 unsigned long start_index; /* starting index # of page */
996 } vlinks_t;
997
998
999 /* Virtual array header. */
1000 typedef struct varray {
1001 vlinks_t *first; /* first page link */
1002 vlinks_t *last; /* last page link */
1003 unsigned long num_allocated; /* # objects allocated */
1004 unsigned short object_size; /* size in bytes of each object */
1005 unsigned short objects_per_page; /* # objects that can fit on a page */
1006 unsigned short objects_last_page; /* # objects allocated on last page */
1007 } varray_t;
1008
1009 #ifndef MALLOC_CHECK
1010 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
1011 #else
1012 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
1013 #endif
1014
1015 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1016 (vlinks_t *)0, /* first */ \
1017 (vlinks_t *)0, /* last */ \
1018 0, /* num_allocated */ \
1019 sizeof (type), /* object_size */ \
1020 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1021 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1022 }
1023
1024 /* Master type for indexes within the symbol table. */
1025 typedef unsigned long symint_t;
1026
1027
1028 /* Linked list support for nested scopes (file, block, structure, etc.). */
1029 typedef struct scope {
1030 struct scope *prev; /* previous scope level */
1031 struct scope *free; /* free list pointer */
1032 SYMR *lsym; /* pointer to local symbol node */
1033 symint_t lnumber; /* lsym index */
1034 st_t type; /* type of the node */
1035 } scope_t;
1036
1037
1038 /* Forward reference list for tags referenced, but not yet defined. */
1039 typedef struct forward {
1040 struct forward *next; /* next forward reference */
1041 struct forward *free; /* free list pointer */
1042 AUXU *ifd_ptr; /* pointer to store file index */
1043 AUXU *index_ptr; /* pointer to store symbol index */
1044 AUXU *type_ptr; /* pointer to munge type info */
1045 } forward_t;
1046
1047
1048 /* Linked list support for tags. The first tag in the list is always
1049 the current tag for that block. */
1050 typedef struct tag {
1051 struct tag *free; /* free list pointer */
1052 struct shash *hash_ptr; /* pointer to the hash table head */
1053 struct tag *same_name; /* tag with same name in outer scope */
1054 struct tag *same_block; /* next tag defined in the same block. */
1055 struct forward *forward_ref; /* list of forward references */
1056 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1057 symint_t ifd; /* file # tag defined in */
1058 symint_t indx; /* index within file's local symbols */
1059 } tag_t;
1060
1061
1062 /* Head of a block's linked list of tags. */
1063 typedef struct thead {
1064 struct thead *prev; /* previous block */
1065 struct thead *free; /* free list pointer */
1066 struct tag *first_tag; /* first tag in block defined */
1067 } thead_t;
1068
1069
1070 /* Union containing pointers to each the small structures which are freed up. */
1071 typedef union small_free {
1072 scope_t *f_scope; /* scope structure */
1073 thead_t *f_thead; /* tag head structure */
1074 tag_t *f_tag; /* tag element structure */
1075 forward_t *f_forward; /* forward tag reference */
1076 } small_free_t;
1077
1078
1079 /* String hash table support. The size of the hash table must fit
1080 within a page. */
1081
1082 #ifndef SHASH_SIZE
1083 #define SHASH_SIZE 1009
1084 #endif
1085
1086 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1087
1088 typedef struct shash {
1089 struct shash *next; /* next hash value */
1090 char *string; /* string we are hashing */
1091 symint_t len; /* string length */
1092 symint_t indx; /* index within string table */
1093 EXTR *esym_ptr; /* global symbol pointer */
1094 SYMR *sym_ptr; /* local symbol pointer */
1095 SYMR *end_ptr; /* symbol pointer to end block */
1096 tag_t *tag_ptr; /* tag pointer */
1097 PDR *proc_ptr; /* procedure descriptor pointer */
1098 } shash_t;
1099
1100
1101 /* Type hash table support. The size of the hash table must fit
1102 within a page with the other extended file descriptor information.
1103 Because unique types which are hashed are fewer in number than
1104 strings, we use a smaller hash value. */
1105
1106 #ifndef THASH_SIZE
1107 #define THASH_SIZE 113
1108 #endif
1109
1110 typedef struct thash {
1111 struct thash *next; /* next hash value */
1112 AUXU type; /* type we are hashing */
1113 symint_t indx; /* index within string table */
1114 } thash_t;
1115
1116
1117 /* Extended file descriptor that contains all of the support necessary
1118 to add things to each file separately. */
1119 typedef struct efdr {
1120 FDR fdr; /* File header to be written out */
1121 FDR *orig_fdr; /* original file header */
1122 char *name; /* filename */
1123 int name_len; /* length of the filename */
1124 symint_t void_type; /* aux. pointer to 'void' type */
1125 symint_t int_type; /* aux. pointer to 'int' type */
1126 scope_t *cur_scope; /* current nested scopes */
1127 symint_t file_index; /* current file number */
1128 int nested_scopes; /* # nested scopes */
1129 varray_t strings; /* local strings */
1130 varray_t symbols; /* local symbols */
1131 varray_t procs; /* procedures */
1132 varray_t aux_syms; /* auxiliary symbols */
1133 struct efdr *next_file; /* next file descriptor */
1134 /* string/type hash tables */
1135 shash_t **shash_head; /* string hash table */
1136 thash_t *thash_head[THASH_SIZE];
1137 } efdr_t;
1138
1139 /* Pre-initialized extended file structure. */
1140 static efdr_t init_file =
1141 {
1142 { /* FDR structure */
1143 0, /* adr: memory address of beginning of file */
1144 0, /* rss: file name (of source, if known) */
1145 0, /* issBase: file's string space */
1146 0, /* cbSs: number of bytes in the ss */
1147 0, /* isymBase: beginning of symbols */
1148 0, /* csym: count file's of symbols */
1149 0, /* ilineBase: file's line symbols */
1150 0, /* cline: count of file's line symbols */
1151 0, /* ioptBase: file's optimization entries */
1152 0, /* copt: count of file's optimization entries */
1153 0, /* ipdFirst: start of procedures for this file */
1154 0, /* cpd: count of procedures for this file */
1155 0, /* iauxBase: file's auxiliary entries */
1156 0, /* caux: count of file's auxiliary entries */
1157 0, /* rfdBase: index into the file indirect table */
1158 0, /* crfd: count file indirect entries */
1159 langC, /* lang: language for this file */
1160 1, /* fMerge: whether this file can be merged */
1161 0, /* fReadin: true if read in (not just created) */
1162 #if BYTES_BIG_ENDIAN
1163 1, /* fBigendian: if 1, compiled on big endian machine */
1164 #else
1165 0, /* fBigendian: if 1, compiled on big endian machine */
1166 #endif
1167 GLEVEL_2, /* glevel: level this file was compiled with */
1168 0, /* reserved: reserved for future use */
1169 0, /* cbLineOffset: byte offset from header for this file ln's */
1170 0, /* cbLine: size of lines for this file */
1171 },
1172
1173 (FDR *)0, /* orig_fdr: original file header pointer */
1174 (char *)0, /* name: pointer to filename */
1175 0, /* name_len: length of filename */
1176 0, /* void_type: ptr to aux node for void type */
1177 0, /* int_type: ptr to aux node for int type */
1178 (scope_t *)0, /* cur_scope: current scope being processed */
1179 0, /* file_index: current file # */
1180 0, /* nested_scopes: # nested scopes */
1181 INIT_VARRAY (char), /* strings: local string varray */
1182 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1183 INIT_VARRAY (PDR), /* procs: procedure varray */
1184 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1185
1186 (struct efdr *)0, /* next_file: next file structure */
1187
1188 (shash_t **)0, /* shash_head: string hash table */
1189 { 0 }, /* thash_head: type hash table */
1190 };
1191
1192
1193 static efdr_t *first_file; /* first file descriptor */
1194 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1195
1196
1197 /* Union of various things that are held in pages. */
1198 typedef union page {
1199 char byte [ PAGE_SIZE ];
1200 unsigned char ubyte [ PAGE_SIZE ];
1201 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1202 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1203 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1204 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1205 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1206 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1207 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1208 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1209 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1210 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1211 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1212 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1213 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1214 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1215 } page_t;
1216
1217
1218 /* Structure holding allocation information for small sized structures. */
1219 typedef struct alloc_info {
1220 char *alloc_name; /* name of this allocation type (must be first) */
1221 page_t *cur_page; /* current page being allocated from */
1222 small_free_t free_list; /* current free list if any */
1223 int unallocated; /* number of elements unallocated on page */
1224 int total_alloc; /* total number of allocations */
1225 int total_free; /* total number of frees */
1226 int total_pages; /* total number of pages allocated */
1227 } alloc_info_t;
1228
1229 /* Type information collected together. */
1230 typedef struct type_info {
1231 bt_t basic_type; /* basic type */
1232 coff_type_t orig_type; /* original COFF-based type */
1233 int num_tq; /* # type qualifiers */
1234 int num_dims; /* # dimensions */
1235 int num_sizes; /* # sizes */
1236 int extra_sizes; /* # extra sizes not tied with dims */
1237 tag_t * tag_ptr; /* tag pointer */
1238 int bitfield; /* symbol is a bitfield */
1239 int unknown_tag; /* this is an unknown tag */
1240 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1241 symint_t dimensions [N_TQ]; /* dimensions for each array */
1242 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1243 struct/union/enum + bitfield size */
1244 } type_info_t;
1245
1246 /* Pre-initialized type_info struct. */
1247 static type_info_t type_info_init = {
1248 bt_Nil, /* basic type */
1249 T_NULL, /* original COFF-based type */
1250 0, /* # type qualifiers */
1251 0, /* # dimensions */
1252 0, /* # sizes */
1253 0, /* sizes not tied with dims */
1254 NULL, /* ptr to tag */
1255 0, /* bitfield */
1256 0, /* unknown tag */
1257 { /* type qualifiers */
1258 tq_Nil,
1259 tq_Nil,
1260 tq_Nil,
1261 tq_Nil,
1262 tq_Nil,
1263 tq_Nil,
1264 },
1265 { /* dimensions */
1266 0,
1267 0,
1268 0,
1269 0,
1270 0,
1271 0
1272 },
1273 { /* sizes */
1274 0,
1275 0,
1276 0,
1277 0,
1278 0,
1279 0,
1280 0,
1281 0,
1282 },
1283 };
1284
1285
1286 /* Global virtual arrays & hash table for external strings as well as
1287 for the tags table and global tables for file descriptors, and
1288 dense numbers. */
1289
1290 static varray_t file_desc = INIT_VARRAY (efdr_t);
1291 static varray_t dense_num = INIT_VARRAY (DNR);
1292 static varray_t tag_strings = INIT_VARRAY (char);
1293 static varray_t ext_strings = INIT_VARRAY (char);
1294 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1295
1296 static shash_t *orig_str_hash[SHASH_SIZE];
1297 static shash_t *ext_str_hash [SHASH_SIZE];
1298 static shash_t *tag_hash [SHASH_SIZE];
1299
1300 /* Static types for int and void. Also, remember the last function's
1301 type (which is set up when we encounter the declaration for the
1302 function, and used when the end block for the function is emitted. */
1303
1304 static type_info_t int_type_info;
1305 static type_info_t void_type_info;
1306 static type_info_t last_func_type_info;
1307 static EXTR *last_func_eptr;
1308
1309
1310 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1311 really should use bt_Void, but this causes the current ecoff GDB to
1312 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1313 2.0) doesn't understand it, even though the compiler generates it.
1314 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1315 suite, but for now go with what works. */
1316
1317 static bt_t map_coff_types[ (int)T_MAX ] = {
1318 bt_Nil, /* T_NULL */
1319 bt_Nil, /* T_ARG */
1320 bt_Char, /* T_CHAR */
1321 bt_Short, /* T_SHORT */
1322 bt_Int, /* T_INT */
1323 bt_Long, /* T_LONG */
1324 bt_Float, /* T_FLOAT */
1325 bt_Double, /* T_DOUBLE */
1326 bt_Struct, /* T_STRUCT */
1327 bt_Union, /* T_UNION */
1328 bt_Enum, /* T_ENUM */
1329 bt_Enum, /* T_MOE */
1330 bt_UChar, /* T_UCHAR */
1331 bt_UShort, /* T_USHORT */
1332 bt_UInt, /* T_UINT */
1333 bt_ULong /* T_ULONG */
1334 };
1335
1336 /* Convert COFF storage class to ECOFF storage class. */
1337 static sc_t map_coff_storage[ (int)C_MAX ] = {
1338 sc_Nil, /* 0: C_NULL */
1339 sc_Abs, /* 1: C_AUTO auto var */
1340 sc_Undefined, /* 2: C_EXT external */
1341 sc_Data, /* 3: C_STAT static */
1342 sc_Register, /* 4: C_REG register */
1343 sc_Undefined, /* 5: C_EXTDEF ??? */
1344 sc_Text, /* 6: C_LABEL label */
1345 sc_Text, /* 7: C_ULABEL user label */
1346 sc_Info, /* 8: C_MOS member of struct */
1347 sc_Abs, /* 9: C_ARG argument */
1348 sc_Info, /* 10: C_STRTAG struct tag */
1349 sc_Info, /* 11: C_MOU member of union */
1350 sc_Info, /* 12: C_UNTAG union tag */
1351 sc_Info, /* 13: C_TPDEF typedef */
1352 sc_Data, /* 14: C_USTATIC ??? */
1353 sc_Info, /* 15: C_ENTAG enum tag */
1354 sc_Info, /* 16: C_MOE member of enum */
1355 sc_Register, /* 17: C_REGPARM register parameter */
1356 sc_Bits, /* 18; C_FIELD bitfield */
1357 sc_Nil, /* 19 */
1358 sc_Nil, /* 20 */
1359 sc_Nil, /* 21 */
1360 sc_Nil, /* 22 */
1361 sc_Nil, /* 23 */
1362 sc_Nil, /* 24 */
1363 sc_Nil, /* 25 */
1364 sc_Nil, /* 26 */
1365 sc_Nil, /* 27 */
1366 sc_Nil, /* 28 */
1367 sc_Nil, /* 29 */
1368 sc_Nil, /* 30 */
1369 sc_Nil, /* 31 */
1370 sc_Nil, /* 32 */
1371 sc_Nil, /* 33 */
1372 sc_Nil, /* 34 */
1373 sc_Nil, /* 35 */
1374 sc_Nil, /* 36 */
1375 sc_Nil, /* 37 */
1376 sc_Nil, /* 38 */
1377 sc_Nil, /* 39 */
1378 sc_Nil, /* 40 */
1379 sc_Nil, /* 41 */
1380 sc_Nil, /* 42 */
1381 sc_Nil, /* 43 */
1382 sc_Nil, /* 44 */
1383 sc_Nil, /* 45 */
1384 sc_Nil, /* 46 */
1385 sc_Nil, /* 47 */
1386 sc_Nil, /* 48 */
1387 sc_Nil, /* 49 */
1388 sc_Nil, /* 50 */
1389 sc_Nil, /* 51 */
1390 sc_Nil, /* 52 */
1391 sc_Nil, /* 53 */
1392 sc_Nil, /* 54 */
1393 sc_Nil, /* 55 */
1394 sc_Nil, /* 56 */
1395 sc_Nil, /* 57 */
1396 sc_Nil, /* 58 */
1397 sc_Nil, /* 59 */
1398 sc_Nil, /* 60 */
1399 sc_Nil, /* 61 */
1400 sc_Nil, /* 62 */
1401 sc_Nil, /* 63 */
1402 sc_Nil, /* 64 */
1403 sc_Nil, /* 65 */
1404 sc_Nil, /* 66 */
1405 sc_Nil, /* 67 */
1406 sc_Nil, /* 68 */
1407 sc_Nil, /* 69 */
1408 sc_Nil, /* 70 */
1409 sc_Nil, /* 71 */
1410 sc_Nil, /* 72 */
1411 sc_Nil, /* 73 */
1412 sc_Nil, /* 74 */
1413 sc_Nil, /* 75 */
1414 sc_Nil, /* 76 */
1415 sc_Nil, /* 77 */
1416 sc_Nil, /* 78 */
1417 sc_Nil, /* 79 */
1418 sc_Nil, /* 80 */
1419 sc_Nil, /* 81 */
1420 sc_Nil, /* 82 */
1421 sc_Nil, /* 83 */
1422 sc_Nil, /* 84 */
1423 sc_Nil, /* 85 */
1424 sc_Nil, /* 86 */
1425 sc_Nil, /* 87 */
1426 sc_Nil, /* 88 */
1427 sc_Nil, /* 89 */
1428 sc_Nil, /* 90 */
1429 sc_Nil, /* 91 */
1430 sc_Nil, /* 92 */
1431 sc_Nil, /* 93 */
1432 sc_Nil, /* 94 */
1433 sc_Nil, /* 95 */
1434 sc_Nil, /* 96 */
1435 sc_Nil, /* 97 */
1436 sc_Nil, /* 98 */
1437 sc_Nil, /* 99 */
1438 sc_Text, /* 100: C_BLOCK block start/end */
1439 sc_Text, /* 101: C_FCN function start/end */
1440 sc_Info, /* 102: C_EOS end of struct/union/enum */
1441 sc_Nil, /* 103: C_FILE file start */
1442 sc_Nil, /* 104: C_LINE line number */
1443 sc_Nil, /* 105: C_ALIAS combined type info */
1444 sc_Nil, /* 106: C_HIDDEN ??? */
1445 };
1446
1447 /* Convert COFF storage class to ECOFF symbol type. */
1448 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1449 st_Nil, /* 0: C_NULL */
1450 st_Local, /* 1: C_AUTO auto var */
1451 st_Global, /* 2: C_EXT external */
1452 st_Static, /* 3: C_STAT static */
1453 st_Local, /* 4: C_REG register */
1454 st_Global, /* 5: C_EXTDEF ??? */
1455 st_Label, /* 6: C_LABEL label */
1456 st_Label, /* 7: C_ULABEL user label */
1457 st_Member, /* 8: C_MOS member of struct */
1458 st_Param, /* 9: C_ARG argument */
1459 st_Block, /* 10: C_STRTAG struct tag */
1460 st_Member, /* 11: C_MOU member of union */
1461 st_Block, /* 12: C_UNTAG union tag */
1462 st_Typedef, /* 13: C_TPDEF typedef */
1463 st_Static, /* 14: C_USTATIC ??? */
1464 st_Block, /* 15: C_ENTAG enum tag */
1465 st_Member, /* 16: C_MOE member of enum */
1466 st_Param, /* 17: C_REGPARM register parameter */
1467 st_Member, /* 18; C_FIELD bitfield */
1468 st_Nil, /* 19 */
1469 st_Nil, /* 20 */
1470 st_Nil, /* 21 */
1471 st_Nil, /* 22 */
1472 st_Nil, /* 23 */
1473 st_Nil, /* 24 */
1474 st_Nil, /* 25 */
1475 st_Nil, /* 26 */
1476 st_Nil, /* 27 */
1477 st_Nil, /* 28 */
1478 st_Nil, /* 29 */
1479 st_Nil, /* 30 */
1480 st_Nil, /* 31 */
1481 st_Nil, /* 32 */
1482 st_Nil, /* 33 */
1483 st_Nil, /* 34 */
1484 st_Nil, /* 35 */
1485 st_Nil, /* 36 */
1486 st_Nil, /* 37 */
1487 st_Nil, /* 38 */
1488 st_Nil, /* 39 */
1489 st_Nil, /* 40 */
1490 st_Nil, /* 41 */
1491 st_Nil, /* 42 */
1492 st_Nil, /* 43 */
1493 st_Nil, /* 44 */
1494 st_Nil, /* 45 */
1495 st_Nil, /* 46 */
1496 st_Nil, /* 47 */
1497 st_Nil, /* 48 */
1498 st_Nil, /* 49 */
1499 st_Nil, /* 50 */
1500 st_Nil, /* 51 */
1501 st_Nil, /* 52 */
1502 st_Nil, /* 53 */
1503 st_Nil, /* 54 */
1504 st_Nil, /* 55 */
1505 st_Nil, /* 56 */
1506 st_Nil, /* 57 */
1507 st_Nil, /* 58 */
1508 st_Nil, /* 59 */
1509 st_Nil, /* 60 */
1510 st_Nil, /* 61 */
1511 st_Nil, /* 62 */
1512 st_Nil, /* 63 */
1513 st_Nil, /* 64 */
1514 st_Nil, /* 65 */
1515 st_Nil, /* 66 */
1516 st_Nil, /* 67 */
1517 st_Nil, /* 68 */
1518 st_Nil, /* 69 */
1519 st_Nil, /* 70 */
1520 st_Nil, /* 71 */
1521 st_Nil, /* 72 */
1522 st_Nil, /* 73 */
1523 st_Nil, /* 74 */
1524 st_Nil, /* 75 */
1525 st_Nil, /* 76 */
1526 st_Nil, /* 77 */
1527 st_Nil, /* 78 */
1528 st_Nil, /* 79 */
1529 st_Nil, /* 80 */
1530 st_Nil, /* 81 */
1531 st_Nil, /* 82 */
1532 st_Nil, /* 83 */
1533 st_Nil, /* 84 */
1534 st_Nil, /* 85 */
1535 st_Nil, /* 86 */
1536 st_Nil, /* 87 */
1537 st_Nil, /* 88 */
1538 st_Nil, /* 89 */
1539 st_Nil, /* 90 */
1540 st_Nil, /* 91 */
1541 st_Nil, /* 92 */
1542 st_Nil, /* 93 */
1543 st_Nil, /* 94 */
1544 st_Nil, /* 95 */
1545 st_Nil, /* 96 */
1546 st_Nil, /* 97 */
1547 st_Nil, /* 98 */
1548 st_Nil, /* 99 */
1549 st_Block, /* 100: C_BLOCK block start/end */
1550 st_Proc, /* 101: C_FCN function start/end */
1551 st_End, /* 102: C_EOS end of struct/union/enum */
1552 st_File, /* 103: C_FILE file start */
1553 st_Nil, /* 104: C_LINE line number */
1554 st_Nil, /* 105: C_ALIAS combined type info */
1555 st_Nil, /* 106: C_HIDDEN ??? */
1556 };
1557
1558 /* Map COFF derived types to ECOFF type qualifiers. */
1559 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1560 tq_Nil, /* 0: DT_NON no more qualifiers */
1561 tq_Ptr, /* 1: DT_PTR pointer */
1562 tq_Proc, /* 2: DT_FCN function */
1563 tq_Array, /* 3: DT_ARY array */
1564 };
1565
1566
1567 /* Keep track of different sized allocation requests. */
1568 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1569
1570 \f
1571 /* Pointers and such to the original symbol table that is read in. */
1572 static struct filehdr orig_file_header; /* global object file header */
1573
1574 static HDRR orig_sym_hdr; /* symbolic header on input */
1575 static char *orig_linenum; /* line numbers */
1576 static DNR *orig_dense; /* dense numbers */
1577 static PDR *orig_procs; /* procedures */
1578 static SYMR *orig_local_syms; /* local symbols */
1579 static OPTR *orig_opt_syms; /* optimization symbols */
1580 static AUXU *orig_aux_syms; /* auxiliary symbols */
1581 static char *orig_local_strs; /* local strings */
1582 static char *orig_ext_strs; /* external strings */
1583 static FDR *orig_files; /* file descriptors */
1584 static symint_t *orig_rfds; /* relative file desc's */
1585 static EXTR *orig_ext_syms; /* external symbols */
1586
1587 /* Macros to convert an index into a given object within the original
1588 symbol table. */
1589 #define CHECK(num,max,str) \
1590 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1591
1592 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1593 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1594 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1595 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1596 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1597 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1598 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1599 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1600 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1601 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1602 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1603
1604 /* Various other statics. */
1605 static HDRR symbolic_header; /* symbolic header */
1606 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1607 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1608 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1609 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1610 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1611 static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1612 static long file_offset = 0; /* current file offset */
1613 static long max_file_offset = 0; /* maximum file offset */
1614 static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1615 static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1616 static char *progname = (char *)0; /* program name for errors */
1617 static char *input_name = "stdin"; /* name of input file */
1618 static char *object_name = (char *)0; /* tmp. name of object file */
1619 static char *obj_in_name = (char *)0; /* name of input object file */
1620 static char *cur_line_start = (char *)0; /* current line read in */
1621 static char *cur_line_ptr = (char *)0; /* ptr within current line */
1622 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1623 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1624 static long line_number = 0; /* current input line number */
1625 static int debug = 0; /* trace functions */
1626 static int version = 0; /* print version # */
1627 static int had_errors = 0; /* != 0 if errors were found */
1628 static int rename_output = 0; /* != 0 if rename output file*/
1629 static int delete_input = 0; /* != 0 if delete input after done */
1630 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1631
1632
1633 /* Pseudo symbol to use when putting stabs into the symbol table. */
1634 #ifndef STABS_SYMBOL
1635 #define STABS_SYMBOL "@stabs"
1636 #endif
1637
1638 static char stabs_symbol[] = STABS_SYMBOL;
1639
1640 \f
1641 /* Forward reference for functions. See the definition for more details. */
1642
1643 #ifndef STATIC
1644 #define STATIC static
1645 #endif
1646
1647 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1648
1649 STATIC shash_t *hash_string __proto((const char *,
1650 Ptrdiff_t,
1651 shash_t **,
1652 symint_t *));
1653
1654 STATIC symint_t add_string __proto((varray_t *,
1655 shash_t **,
1656 const char *,
1657 const char *,
1658 shash_t **));
1659
1660 STATIC symint_t add_local_symbol
1661 __proto((const char *,
1662 const char *,
1663 st_t,
1664 sc_t,
1665 symint_t,
1666 symint_t));
1667
1668 STATIC symint_t add_ext_symbol __proto((const char *,
1669 const char *,
1670 st_t,
1671 sc_t,
1672 long,
1673 symint_t,
1674 int));
1675
1676 STATIC symint_t add_aux_sym_symint
1677 __proto((symint_t));
1678
1679 STATIC symint_t add_aux_sym_rndx
1680 __proto((int, symint_t));
1681
1682 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1683 hash_state_t,
1684 thash_t **));
1685
1686 STATIC tag_t * get_tag __proto((const char *,
1687 const char *,
1688 symint_t,
1689 bt_t));
1690
1691 STATIC void add_unknown_tag __proto((tag_t *));
1692
1693 STATIC void add_procedure __proto((const char *,
1694 const char *));
1695
1696 STATIC void add_file __proto((const char *,
1697 const char *));
1698
1699 STATIC void add_bytes __proto((varray_t *,
1700 char *,
1701 Size_t));
1702
1703 STATIC void add_varray_page __proto((varray_t *));
1704
1705 STATIC void update_headers __proto((void));
1706
1707 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1708 STATIC void write_object __proto((void));
1709 STATIC char *st_to_string __proto((st_t));
1710 STATIC char *sc_to_string __proto((sc_t));
1711 STATIC char *read_line __proto((void));
1712 STATIC void parse_input __proto((void));
1713 STATIC void mark_stabs __proto((const char *));
1714 STATIC void parse_begin __proto((const char *));
1715 STATIC void parse_bend __proto((const char *));
1716 STATIC void parse_def __proto((const char *));
1717 STATIC void parse_end __proto((const char *));
1718 STATIC void parse_ent __proto((const char *));
1719 STATIC void parse_file __proto((const char *));
1720 STATIC void parse_stabs_common
1721 __proto((const char *, const char *, const char *));
1722 STATIC void parse_stabs __proto((const char *));
1723 STATIC void parse_stabn __proto((const char *));
1724 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1725 STATIC void copy_object __proto((void));
1726
1727 STATIC void catch_signal __proto((int));
1728 STATIC page_t *allocate_page __proto((void));
1729
1730 STATIC page_t *allocate_multiple_pages
1731 __proto((Size_t));
1732
1733 STATIC void free_multiple_pages
1734 __proto((page_t *, Size_t));
1735
1736 #ifndef MALLOC_CHECK
1737 STATIC page_t *allocate_cluster
1738 __proto((Size_t));
1739 #endif
1740
1741 STATIC forward_t *allocate_forward __proto((void));
1742 STATIC scope_t *allocate_scope __proto((void));
1743 STATIC shash_t *allocate_shash __proto((void));
1744 STATIC tag_t *allocate_tag __proto((void));
1745 STATIC thash_t *allocate_thash __proto((void));
1746 STATIC thead_t *allocate_thead __proto((void));
1747 STATIC vlinks_t *allocate_vlinks __proto((void));
1748
1749 STATIC void free_forward __proto((forward_t *));
1750 STATIC void free_scope __proto((scope_t *));
1751 STATIC void free_tag __proto((tag_t *));
1752 STATIC void free_thead __proto((thead_t *));
1753
1754 STATIC char *local_index __proto((const char *, int));
1755 STATIC char *local_rindex __proto((const char *, int));
1756
1757 #ifndef __alpha
1758 extern char *sbrk __proto((int));
1759 extern PTR_T malloc __proto((Size_t));
1760 extern PTR_T calloc __proto((Size_t, Size_t));
1761 extern PTR_T realloc __proto((PTR_T, Size_t));
1762 extern void free __proto((PTR_T));
1763 #endif
1764 extern char *mktemp __proto((char *));
1765 extern long strtol __proto((const char *, char **, int));
1766
1767 extern char *optarg;
1768 extern int optind;
1769 extern int opterr;
1770 extern char *version_string;
1771 #ifndef NO_SYS_SIGLIST
1772 #ifndef DONT_DECLARE_SYS_SIGLIST
1773 extern char *sys_siglist[NSIG + 1];
1774 #endif
1775 #endif
1776
1777 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1778 #define SEEK_SET 0 /* Set file pointer to offset */
1779 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1780 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1781 #endif
1782
1783 \f
1784 /* List of assembler pseudo ops and beginning sequences that need
1785 special actions. Someday, this should be a hash table, and such,
1786 but for now a linear list of names and calls to memcmp will
1787 do...... */
1788
1789 typedef struct _pseudo_ops {
1790 const char *name; /* pseudo-op in ascii */
1791 int len; /* length of name to compare */
1792 void (*func) __proto((const char *)); /* function to handle line */
1793 } pseudo_ops_t;
1794
1795 static pseudo_ops_t pseudo_ops[] = {
1796 { "#.def", sizeof("#.def")-1, parse_def },
1797 { "#.begin", sizeof("#.begin")-1, parse_begin },
1798 { "#.bend", sizeof("#.bend")-1, parse_bend },
1799 { ".end", sizeof(".end")-1, parse_end },
1800 { ".ent", sizeof(".ent")-1, parse_ent },
1801 { ".file", sizeof(".file")-1, parse_file },
1802 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1803 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1804 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1805 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1806 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1807 };
1808
1809 \f
1810 /* Add a page to a varray object. */
1811
1812 STATIC void
1813 add_varray_page (vp)
1814 varray_t *vp; /* varray to add page to */
1815 {
1816 vlinks_t *new_links = allocate_vlinks ();
1817
1818 #ifdef MALLOC_CHECK
1819 if (vp->object_size > 1)
1820 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1821 else
1822 #endif
1823 new_links->datum = allocate_page ();
1824
1825 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1826 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1827
1828 new_links->start_index = vp->num_allocated;
1829 vp->objects_last_page = 0;
1830
1831 if (vp->first == (vlinks_t *)0) /* first allocation? */
1832 vp->first = vp->last = new_links;
1833 else
1834 { /* 2nd or greater allocation */
1835 new_links->prev = vp->last;
1836 vp->last->next = new_links;
1837 vp->last = new_links;
1838 }
1839 }
1840
1841 \f
1842 /* Compute hash code (from tree.c) */
1843
1844 #define HASHBITS 30
1845
1846 STATIC shash_t *
1847 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1848 const char *text; /* ptr to text to hash */
1849 Ptrdiff_t hash_len; /* length of the text */
1850 shash_t **hash_tbl; /* hash table */
1851 symint_t *ret_hash_index; /* ptr to store hash index */
1852 {
1853 register unsigned long hi;
1854 register Ptrdiff_t i;
1855 register shash_t *ptr;
1856 register int first_ch = *text;
1857
1858 hi = hash_len;
1859 for (i = 0; i < hash_len; i++)
1860 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1861
1862 hi &= (1 << HASHBITS) - 1;
1863 hi %= SHASH_SIZE;
1864
1865 if (ret_hash_index != (symint_t *)0)
1866 *ret_hash_index = hi;
1867
1868 for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1869 if (hash_len == ptr->len
1870 && first_ch == ptr->string[0]
1871 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1872 break;
1873
1874 return ptr;
1875 }
1876
1877 \f
1878 /* Add a string (and null pad) to one of the string tables. A
1879 consequence of hashing strings, is that we don't let strings
1880 cross page boundaries. The extra nulls will be ignored. */
1881
1882 STATIC symint_t
1883 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1884 varray_t *vp; /* string virtual array */
1885 shash_t **hash_tbl; /* ptr to hash table */
1886 const char *start; /* 1st byte in string */
1887 const char *end_p1; /* 1st byte after string */
1888 shash_t **ret_hash; /* return hash pointer */
1889 {
1890 register Ptrdiff_t len = end_p1 - start;
1891 register shash_t *hash_ptr;
1892 symint_t hi;
1893
1894 if (len >= PAGE_USIZE)
1895 fatal ("String too big (%ld bytes)", (long) len);
1896
1897 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1898 if (hash_ptr == (shash_t *)0)
1899 {
1900 register char *p;
1901
1902 if (vp->objects_last_page + len >= PAGE_USIZE)
1903 {
1904 vp->num_allocated =
1905 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1906 add_varray_page (vp);
1907 }
1908
1909 hash_ptr = allocate_shash ();
1910 hash_ptr->next = hash_tbl[hi];
1911 hash_tbl[hi] = hash_ptr;
1912
1913 hash_ptr->len = len;
1914 hash_ptr->indx = vp->num_allocated;
1915 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1916
1917 vp->objects_last_page += len+1;
1918 vp->num_allocated += len+1;
1919
1920 while (len-- > 0)
1921 *p++ = *start++;
1922
1923 *p = '\0';
1924 }
1925
1926 if (ret_hash != (shash_t **)0)
1927 *ret_hash = hash_ptr;
1928
1929 return hash_ptr->indx;
1930 }
1931
1932 \f
1933 /* Add a local symbol. */
1934
1935 STATIC symint_t
1936 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1937 const char *str_start; /* first byte in string */
1938 const char *str_end_p1; /* first byte after string */
1939 st_t type; /* symbol type */
1940 sc_t storage; /* storage class */
1941 symint_t value; /* value of symbol */
1942 symint_t indx; /* index to local/aux. syms */
1943 {
1944 register symint_t ret;
1945 register SYMR *psym;
1946 register scope_t *pscope;
1947 register thead_t *ptag_head;
1948 register tag_t *ptag;
1949 register tag_t *ptag_next;
1950 register varray_t *vp = &cur_file_ptr->symbols;
1951 register int scope_delta = 0;
1952 shash_t *hash_ptr = (shash_t *)0;
1953
1954 if (vp->objects_last_page == vp->objects_per_page)
1955 add_varray_page (vp);
1956
1957 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1958
1959 psym->value = value;
1960 psym->st = (unsigned) type;
1961 psym->sc = (unsigned) storage;
1962 psym->index = indx;
1963 psym->iss = (str_start == (const char *)0)
1964 ? 0
1965 : add_string (&cur_file_ptr->strings,
1966 &cur_file_ptr->shash_head[0],
1967 str_start,
1968 str_end_p1,
1969 &hash_ptr);
1970
1971 ret = vp->num_allocated++;
1972
1973 if (MIPS_IS_STAB(psym))
1974 return ret;
1975
1976 /* Save the symbol within the hash table if this is a static
1977 item, and it has a name. */
1978 if (hash_ptr != (shash_t *)0
1979 && (type == st_Global || type == st_Static || type == st_Label
1980 || type == st_Proc || type == st_StaticProc))
1981 hash_ptr->sym_ptr = psym;
1982
1983 /* push or pop a scope if appropriate. */
1984 switch (type)
1985 {
1986 default:
1987 break;
1988
1989 case st_File: /* beginning of file */
1990 case st_Proc: /* procedure */
1991 case st_StaticProc: /* static procedure */
1992 case st_Block: /* begin scope */
1993 pscope = allocate_scope ();
1994 pscope->prev = cur_file_ptr->cur_scope;
1995 pscope->lsym = psym;
1996 pscope->lnumber = ret;
1997 pscope->type = type;
1998 cur_file_ptr->cur_scope = pscope;
1999
2000 if (type != st_File)
2001 scope_delta = 1;
2002
2003 /* For every block type except file, struct, union, or
2004 enumeration blocks, push a level on the tag stack. We omit
2005 file types, so that tags can span file boundaries. */
2006 if (type != st_File && storage != sc_Info)
2007 {
2008 ptag_head = allocate_thead ();
2009 ptag_head->first_tag = 0;
2010 ptag_head->prev = cur_tag_head;
2011 cur_tag_head = ptag_head;
2012 }
2013 break;
2014
2015 case st_End:
2016 pscope = cur_file_ptr->cur_scope;
2017 if (pscope == (scope_t *)0)
2018 error ("internal error, too many st_End's");
2019
2020 else
2021 {
2022 st_t begin_type = (st_t) pscope->lsym->st;
2023
2024 if (begin_type != st_File)
2025 scope_delta = -1;
2026
2027 /* Except for file, structure, union, or enumeration end
2028 blocks remove all tags created within this scope. */
2029 if (begin_type != st_File && storage != sc_Info)
2030 {
2031 ptag_head = cur_tag_head;
2032 cur_tag_head = ptag_head->prev;
2033
2034 for (ptag = ptag_head->first_tag;
2035 ptag != (tag_t *)0;
2036 ptag = ptag_next)
2037 {
2038 if (ptag->forward_ref != (forward_t *)0)
2039 add_unknown_tag (ptag);
2040
2041 ptag_next = ptag->same_block;
2042 ptag->hash_ptr->tag_ptr = ptag->same_name;
2043 free_tag (ptag);
2044 }
2045
2046 free_thead (ptag_head);
2047 }
2048
2049 cur_file_ptr->cur_scope = pscope->prev;
2050 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2051
2052 if (storage != sc_Info)
2053 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2054
2055 if (begin_type == st_File || begin_type == st_Block)
2056 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2057
2058 /* Functions push two or more aux words as follows:
2059 1st word: index+1 of the end symbol
2060 2nd word: type of the function (plus any aux words needed).
2061 Also, tie the external pointer back to the function begin symbol. */
2062 else
2063 {
2064 symint_t type;
2065 pscope->lsym->index = add_aux_sym_symint (ret+1);
2066 type = add_aux_sym_tir (&last_func_type_info,
2067 hash_no,
2068 &cur_file_ptr->thash_head[0]);
2069 if (last_func_eptr)
2070 {
2071 last_func_eptr->ifd = cur_file_ptr->file_index;
2072
2073 /* The index for an external st_Proc symbol is the index
2074 of the st_Proc symbol in the local symbol table. */
2075 last_func_eptr->asym.index = psym->index;
2076 }
2077 }
2078
2079 free_scope (pscope);
2080 }
2081 }
2082
2083 cur_file_ptr->nested_scopes += scope_delta;
2084
2085 if (debug && type != st_File
2086 && (debug > 2 || type == st_Block || type == st_End
2087 || type == st_Proc || type == st_StaticProc))
2088 {
2089 char *sc_str = sc_to_string (storage);
2090 char *st_str = st_to_string (type);
2091 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2092
2093 fprintf (stderr,
2094 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2095 value, depth, sc_str);
2096
2097 if (str_start && str_end_p1 - str_start > 0)
2098 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2099 else
2100 {
2101 Size_t len = strlen (st_str);
2102 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2103 }
2104 }
2105
2106 return ret;
2107 }
2108
2109 \f
2110 /* Add an external symbol. */
2111
2112 STATIC symint_t
2113 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2114 const char *str_start; /* first byte in string */
2115 const char *str_end_p1; /* first byte after string */
2116 st_t type; /* symbol type */
2117 sc_t storage; /* storage class */
2118 long value; /* value of symbol */
2119 symint_t indx; /* index to local/aux. syms */
2120 int ifd; /* file index */
2121 {
2122 register EXTR *psym;
2123 register varray_t *vp = &ext_symbols;
2124 shash_t *hash_ptr = (shash_t *)0;
2125
2126 if (debug > 1)
2127 {
2128 char *sc_str = sc_to_string (storage);
2129 char *st_str = st_to_string (type);
2130
2131 fprintf (stderr,
2132 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2133 value, ifd, sc_str);
2134
2135 if (str_start && str_end_p1 - str_start > 0)
2136 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2137 else
2138 fprintf (stderr, " st= %s\n", st_str);
2139 }
2140
2141 if (vp->objects_last_page == vp->objects_per_page)
2142 add_varray_page (vp);
2143
2144 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2145
2146 psym->ifd = ifd;
2147 psym->asym.value = value;
2148 psym->asym.st = (unsigned) type;
2149 psym->asym.sc = (unsigned) storage;
2150 psym->asym.index = indx;
2151 psym->asym.iss = (str_start == (const char *)0)
2152 ? 0
2153 : add_string (&ext_strings,
2154 &ext_str_hash[0],
2155 str_start,
2156 str_end_p1,
2157 &hash_ptr);
2158
2159 hash_ptr->esym_ptr = psym;
2160 return vp->num_allocated++;
2161 }
2162
2163 \f
2164 /* Add an auxiliary symbol (passing a symint). */
2165
2166 STATIC symint_t
2167 add_aux_sym_symint (aux_word)
2168 symint_t aux_word; /* auxiliary information word */
2169 {
2170 register AUXU *aux_ptr;
2171 register efdr_t *file_ptr = cur_file_ptr;
2172 register varray_t *vp = &file_ptr->aux_syms;
2173
2174 if (vp->objects_last_page == vp->objects_per_page)
2175 add_varray_page (vp);
2176
2177 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2178 aux_ptr->isym = aux_word;
2179
2180 return vp->num_allocated++;
2181 }
2182
2183
2184 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2185
2186 STATIC symint_t
2187 add_aux_sym_rndx (file_index, sym_index)
2188 int file_index;
2189 symint_t sym_index;
2190 {
2191 register AUXU *aux_ptr;
2192 register efdr_t *file_ptr = cur_file_ptr;
2193 register varray_t *vp = &file_ptr->aux_syms;
2194
2195 if (vp->objects_last_page == vp->objects_per_page)
2196 add_varray_page (vp);
2197
2198 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2199 aux_ptr->rndx.rfd = file_index;
2200 aux_ptr->rndx.index = sym_index;
2201
2202 return vp->num_allocated++;
2203 }
2204
2205 \f
2206 /* Add an auxiliary symbol (passing the basic type and possibly
2207 type qualifiers). */
2208
2209 STATIC symint_t
2210 add_aux_sym_tir (t, state, hash_tbl)
2211 type_info_t *t; /* current type information */
2212 hash_state_t state; /* whether to hash type or not */
2213 thash_t **hash_tbl; /* pointer to hash table to use */
2214 {
2215 register AUXU *aux_ptr;
2216 register efdr_t *file_ptr = cur_file_ptr;
2217 register varray_t *vp = &file_ptr->aux_syms;
2218 static AUXU init_aux;
2219 symint_t ret;
2220 int i;
2221 AUXU aux;
2222
2223 aux = init_aux;
2224 aux.ti.bt = (int) t->basic_type;
2225 aux.ti.continued = 0;
2226 aux.ti.fBitfield = t->bitfield;
2227
2228 aux.ti.tq0 = (int) t->type_qualifiers[0];
2229 aux.ti.tq1 = (int) t->type_qualifiers[1];
2230 aux.ti.tq2 = (int) t->type_qualifiers[2];
2231 aux.ti.tq3 = (int) t->type_qualifiers[3];
2232 aux.ti.tq4 = (int) t->type_qualifiers[4];
2233 aux.ti.tq5 = (int) t->type_qualifiers[5];
2234
2235
2236 /* For anything that adds additional information, we must not hash,
2237 so check here, and reset our state. */
2238
2239 if (state != hash_no
2240 && (t->type_qualifiers[0] == tq_Array
2241 || t->type_qualifiers[1] == tq_Array
2242 || t->type_qualifiers[2] == tq_Array
2243 || t->type_qualifiers[3] == tq_Array
2244 || t->type_qualifiers[4] == tq_Array
2245 || t->type_qualifiers[5] == tq_Array
2246 || t->basic_type == bt_Struct
2247 || t->basic_type == bt_Union
2248 || t->basic_type == bt_Enum
2249 || t->bitfield
2250 || t->num_dims > 0))
2251 state = hash_no;
2252
2253 /* See if we can hash this type, and save some space, but some types
2254 can't be hashed (because they contain arrays or continuations),
2255 and others can be put into the hash list, but cannot use existing
2256 types because other aux entries precede this one. */
2257
2258 if (state != hash_no)
2259 {
2260 register thash_t *hash_ptr;
2261 register symint_t hi;
2262
2263 hi = aux.isym & ((1 << HASHBITS) - 1);
2264 hi %= THASH_SIZE;
2265
2266 for (hash_ptr = hash_tbl[hi];
2267 hash_ptr != (thash_t *)0;
2268 hash_ptr = hash_ptr->next)
2269 {
2270 if (aux.isym == hash_ptr->type.isym)
2271 break;
2272 }
2273
2274 if (hash_ptr != (thash_t *)0 && state == hash_yes)
2275 return hash_ptr->indx;
2276
2277 if (hash_ptr == (thash_t *)0)
2278 {
2279 hash_ptr = allocate_thash ();
2280 hash_ptr->next = hash_tbl[hi];
2281 hash_ptr->type = aux;
2282 hash_ptr->indx = vp->num_allocated;
2283 hash_tbl[hi] = hash_ptr;
2284 }
2285 }
2286
2287 /* Everything is set up, add the aux symbol. */
2288 if (vp->objects_last_page == vp->objects_per_page)
2289 add_varray_page (vp);
2290
2291 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2292 *aux_ptr = aux;
2293
2294 ret = vp->num_allocated++;
2295
2296 /* Add bitfield length if it exists.
2297
2298 NOTE: Mips documentation claims bitfield goes at the end of the
2299 AUX record, but the DECstation compiler emits it here.
2300 (This would only make a difference for enum bitfields.)
2301
2302 Also note: We use the last size given since gcc may emit 2
2303 for an enum bitfield. */
2304
2305 if (t->bitfield)
2306 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2307
2308
2309 /* Add tag information if needed. Structure, union, and enum
2310 references add 2 aux symbols: a [file index, symbol index]
2311 pointer to the structure type, and the current file index. */
2312
2313 if (t->basic_type == bt_Struct
2314 || t->basic_type == bt_Union
2315 || t->basic_type == bt_Enum)
2316 {
2317 register symint_t file_index = t->tag_ptr->ifd;
2318 register symint_t sym_index = t->tag_ptr->indx;
2319
2320 if (t->unknown_tag)
2321 {
2322 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2323 (void) add_aux_sym_symint ((symint_t)-1);
2324 }
2325 else if (sym_index != indexNil)
2326 {
2327 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2328 (void) add_aux_sym_symint (file_index);
2329 }
2330 else
2331 {
2332 register forward_t *forward_ref = allocate_forward ();
2333
2334 forward_ref->type_ptr = aux_ptr;
2335 forward_ref->next = t->tag_ptr->forward_ref;
2336 t->tag_ptr->forward_ref = forward_ref;
2337
2338 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2339 forward_ref->index_ptr
2340 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2341
2342 (void) add_aux_sym_symint (file_index);
2343 forward_ref->ifd_ptr
2344 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2345 }
2346 }
2347
2348 /* Add information about array bounds if they exist. */
2349 for (i = 0; i < t->num_dims; i++)
2350 {
2351 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2352 cur_file_ptr->int_type);
2353
2354 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2355 (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2356 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2357 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2358 ? 0
2359 : (t->sizes[i] * 8) / t->dimensions[i]);
2360 };
2361
2362 /* NOTE: Mips documentation claism that the bitfield width goes here.
2363 But it needs to be emitted earlier. */
2364
2365 return ret;
2366 }
2367
2368 \f
2369 /* Add a tag to the tag table (unless it already exists). */
2370
2371 STATIC tag_t *
2372 get_tag (tag_start, tag_end_p1, indx, basic_type)
2373 const char *tag_start; /* 1st byte of tag name */
2374 const char *tag_end_p1; /* 1st byte after tag name */
2375 symint_t indx; /* index of tag start block */
2376 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2377 {
2378 shash_t *hash_ptr;
2379 tag_t *tag_ptr;
2380 hash_ptr = hash_string (tag_start,
2381 tag_end_p1 - tag_start,
2382 &tag_hash[0],
2383 (symint_t *)0);
2384
2385 if (hash_ptr != (shash_t *)0
2386 && hash_ptr->tag_ptr != (tag_t *)0)
2387 {
2388 tag_ptr = hash_ptr->tag_ptr;
2389 if (indx != indexNil)
2390 {
2391 tag_ptr->basic_type = basic_type;
2392 tag_ptr->ifd = cur_file_ptr->file_index;
2393 tag_ptr->indx = indx;
2394 }
2395 return tag_ptr;
2396 }
2397
2398 (void) add_string (&tag_strings,
2399 &tag_hash[0],
2400 tag_start,
2401 tag_end_p1,
2402 &hash_ptr);
2403
2404 tag_ptr = allocate_tag ();
2405 tag_ptr->forward_ref = (forward_t *) 0;
2406 tag_ptr->hash_ptr = hash_ptr;
2407 tag_ptr->same_name = hash_ptr->tag_ptr;
2408 tag_ptr->basic_type = basic_type;
2409 tag_ptr->indx = indx;
2410 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2411 tag_ptr->same_block = cur_tag_head->first_tag;
2412
2413 cur_tag_head->first_tag = tag_ptr;
2414 hash_ptr->tag_ptr = tag_ptr;
2415
2416 return tag_ptr;
2417 }
2418
2419 \f
2420 /* Add an unknown {struct, union, enum} tag. */
2421
2422 STATIC void
2423 add_unknown_tag (ptag)
2424 tag_t *ptag; /* pointer to tag information */
2425 {
2426 shash_t *hash_ptr = ptag->hash_ptr;
2427 char *name_start = hash_ptr->string;
2428 char *name_end_p1 = name_start + hash_ptr->len;
2429 forward_t *f_next = ptag->forward_ref;
2430 forward_t *f_cur;
2431 int sym_index;
2432 int file_index = cur_file_ptr->file_index;
2433
2434 if (debug > 1)
2435 {
2436 char *agg_type = "{unknown aggregate type}";
2437 switch (ptag->basic_type)
2438 {
2439 case bt_Struct: agg_type = "struct"; break;
2440 case bt_Union: agg_type = "union"; break;
2441 case bt_Enum: agg_type = "enum"; break;
2442 default: break;
2443 }
2444
2445 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2446 hash_ptr->len, name_start);
2447 }
2448
2449 sym_index = add_local_symbol (name_start,
2450 name_end_p1,
2451 st_Block,
2452 sc_Info,
2453 (symint_t)0,
2454 (symint_t)0);
2455
2456 (void) add_local_symbol (name_start,
2457 name_end_p1,
2458 st_End,
2459 sc_Info,
2460 (symint_t)0,
2461 (symint_t)0);
2462
2463 while (f_next != (forward_t *)0)
2464 {
2465 f_cur = f_next;
2466 f_next = f_next->next;
2467
2468 f_cur->ifd_ptr->isym = file_index;
2469 f_cur->index_ptr->rndx.index = sym_index;
2470
2471 free_forward (f_cur);
2472 }
2473
2474 return;
2475 }
2476
2477 \f
2478 /* Add a procedure to the current file's list of procedures, and record
2479 this is the current procedure. If the assembler created a PDR for
2480 this procedure, use that to initialize the current PDR. */
2481
2482 STATIC void
2483 add_procedure (func_start, func_end_p1)
2484 const char *func_start; /* 1st byte of func name */
2485 const char *func_end_p1; /* 1st byte after func name */
2486 {
2487 register PDR *new_proc_ptr;
2488 register efdr_t *file_ptr = cur_file_ptr;
2489 register varray_t *vp = &file_ptr->procs;
2490 register symint_t value = 0;
2491 register st_t proc_type = st_Proc;
2492 register shash_t *shash_ptr = hash_string (func_start,
2493 func_end_p1 - func_start,
2494 &orig_str_hash[0],
2495 (symint_t *)0);
2496
2497 if (debug)
2498 fputc ('\n', stderr);
2499
2500 if (vp->objects_last_page == vp->objects_per_page)
2501 add_varray_page (vp);
2502
2503 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2504
2505 vp->num_allocated++;
2506
2507
2508 /* Did the assembler create this procedure? If so, get the PDR information. */
2509 cur_oproc_ptr = (PDR *)0;
2510 if (shash_ptr != (shash_t *)0)
2511 {
2512 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2513 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2514
2515 if (old_proc_ptr != (PDR *)0
2516 && sym_ptr != (SYMR *)0
2517 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2518 {
2519 cur_oproc_begin = sym_ptr;
2520 cur_oproc_end = shash_ptr->end_ptr;
2521 value = sym_ptr->value;
2522
2523 cur_oproc_ptr = old_proc_ptr;
2524 proc_type = (st_t)sym_ptr->st;
2525 *new_proc_ptr = *old_proc_ptr; /* initialize */
2526 }
2527 }
2528
2529 if (cur_oproc_ptr == (PDR *)0)
2530 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2531
2532 /* Determine the start of symbols. */
2533 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2534
2535 /* Push the start of the function. */
2536 (void) add_local_symbol (func_start, func_end_p1,
2537 proc_type, sc_Text,
2538 value,
2539 (symint_t)0);
2540 }
2541
2542 \f
2543 /* Add a new filename, and set up all of the file relative
2544 virtual arrays (strings, symbols, aux syms, etc.). Record
2545 where the current file structure lives. */
2546
2547 STATIC void
2548 add_file (file_start, file_end_p1)
2549 const char *file_start; /* first byte in string */
2550 const char *file_end_p1; /* first byte after string */
2551 {
2552 static char zero_bytes[2] = { '\0', '\0' };
2553
2554 register Ptrdiff_t len = file_end_p1 - file_start;
2555 register int first_ch = *file_start;
2556 register efdr_t *file_ptr;
2557
2558 if (debug)
2559 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2560
2561 /* See if the file has already been created. */
2562 for (file_ptr = first_file;
2563 file_ptr != (efdr_t *)0;
2564 file_ptr = file_ptr->next_file)
2565 {
2566 if (first_ch == file_ptr->name[0]
2567 && file_ptr->name[len] == '\0'
2568 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2569 {
2570 cur_file_ptr = file_ptr;
2571 break;
2572 }
2573 }
2574
2575 /* If this is a new file, create it. */
2576 if (file_ptr == (efdr_t *)0)
2577 {
2578 if (file_desc.objects_last_page == file_desc.objects_per_page)
2579 add_varray_page (&file_desc);
2580
2581 file_ptr = cur_file_ptr =
2582 &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2583 *file_ptr = init_file;
2584
2585 file_ptr->file_index = file_desc.num_allocated++;
2586
2587 /* Allocate the string hash table. */
2588 file_ptr->shash_head = (shash_t **) allocate_page ();
2589
2590 /* Make sure 0 byte in string table is null */
2591 add_string (&file_ptr->strings,
2592 &file_ptr->shash_head[0],
2593 &zero_bytes[0],
2594 &zero_bytes[0],
2595 (shash_t **)0);
2596
2597 if (file_end_p1 - file_start > PAGE_USIZE-2)
2598 fatal ("Filename goes over one page boundary.");
2599
2600 /* Push the start of the filename. We assume that the filename
2601 will be stored at string offset 1. */
2602 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2603 (symint_t)0, (symint_t)0);
2604 file_ptr->fdr.rss = 1;
2605 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2606 file_ptr->name_len = file_end_p1 - file_start;
2607
2608 /* Update the linked list of file descriptors. */
2609 *last_file_ptr = file_ptr;
2610 last_file_ptr = &file_ptr->next_file;
2611
2612 /* Add void & int types to the file (void should be first to catch
2613 errant 0's within the index fields). */
2614 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2615 hash_yes,
2616 &cur_file_ptr->thash_head[0]);
2617
2618 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2619 hash_yes,
2620 &cur_file_ptr->thash_head[0]);
2621 }
2622 }
2623
2624 \f
2625 /* Add a stream of random bytes to a varray. */
2626
2627 STATIC void
2628 add_bytes (vp, input_ptr, nitems)
2629 varray_t *vp; /* virtual array to add too */
2630 char *input_ptr; /* start of the bytes */
2631 Size_t nitems; /* # items to move */
2632 {
2633 register Size_t move_items;
2634 register Size_t move_bytes;
2635 register char *ptr;
2636
2637 while (nitems > 0)
2638 {
2639 if (vp->objects_last_page >= vp->objects_per_page)
2640 add_varray_page (vp);
2641
2642 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2643 move_items = vp->objects_per_page - vp->objects_last_page;
2644 if (move_items > nitems)
2645 move_items = nitems;
2646
2647 move_bytes = move_items * vp->object_size;
2648 nitems -= move_items;
2649
2650 if (move_bytes >= 32)
2651 {
2652 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2653 input_ptr += move_bytes;
2654 }
2655 else
2656 {
2657 while (move_bytes-- > 0)
2658 *ptr++ = *input_ptr++;
2659 }
2660 }
2661 }
2662
2663 \f
2664 /* Convert storage class to string. */
2665
2666 STATIC char *
2667 sc_to_string(storage_class)
2668 sc_t storage_class;
2669 {
2670 switch(storage_class)
2671 {
2672 case sc_Nil: return "Nil,";
2673 case sc_Text: return "Text,";
2674 case sc_Data: return "Data,";
2675 case sc_Bss: return "Bss,";
2676 case sc_Register: return "Register,";
2677 case sc_Abs: return "Abs,";
2678 case sc_Undefined: return "Undefined,";
2679 case sc_CdbLocal: return "CdbLocal,";
2680 case sc_Bits: return "Bits,";
2681 case sc_CdbSystem: return "CdbSystem,";
2682 case sc_RegImage: return "RegImage,";
2683 case sc_Info: return "Info,";
2684 case sc_UserStruct: return "UserStruct,";
2685 case sc_SData: return "SData,";
2686 case sc_SBss: return "SBss,";
2687 case sc_RData: return "RData,";
2688 case sc_Var: return "Var,";
2689 case sc_Common: return "Common,";
2690 case sc_SCommon: return "SCommon,";
2691 case sc_VarRegister: return "VarRegister,";
2692 case sc_Variant: return "Variant,";
2693 case sc_SUndefined: return "SUndefined,";
2694 case sc_Init: return "Init,";
2695 case sc_Max: return "Max,";
2696 }
2697
2698 return "???,";
2699 }
2700
2701 \f
2702 /* Convert symbol type to string. */
2703
2704 STATIC char *
2705 st_to_string(symbol_type)
2706 st_t symbol_type;
2707 {
2708 switch(symbol_type)
2709 {
2710 case st_Nil: return "Nil,";
2711 case st_Global: return "Global,";
2712 case st_Static: return "Static,";
2713 case st_Param: return "Param,";
2714 case st_Local: return "Local,";
2715 case st_Label: return "Label,";
2716 case st_Proc: return "Proc,";
2717 case st_Block: return "Block,";
2718 case st_End: return "End,";
2719 case st_Member: return "Member,";
2720 case st_Typedef: return "Typedef,";
2721 case st_File: return "File,";
2722 case st_RegReloc: return "RegReloc,";
2723 case st_Forward: return "Forward,";
2724 case st_StaticProc: return "StaticProc,";
2725 case st_Constant: return "Constant,";
2726 case st_Str: return "String,";
2727 case st_Number: return "Number,";
2728 case st_Expr: return "Expr,";
2729 case st_Type: return "Type,";
2730 case st_Max: return "Max,";
2731 }
2732
2733 return "???,";
2734 }
2735
2736 \f
2737 /* Read a line from standard input, and return the start of the buffer
2738 (which is grows if the line is too big). We split lines at the
2739 semi-colon, and return each logical line independently. */
2740
2741 STATIC char *
2742 read_line __proto((void))
2743 {
2744 static int line_split_p = 0;
2745 register int string_p = 0;
2746 register int comment_p = 0;
2747 register int ch;
2748 register char *ptr;
2749
2750 if (cur_line_start == (char *)0)
2751 { /* allocate initial page */
2752 cur_line_start = (char *) allocate_page ();
2753 cur_line_alloc = PAGE_SIZE;
2754 }
2755
2756 if (!line_split_p)
2757 line_number++;
2758
2759 line_split_p = 0;
2760 cur_line_nbytes = 0;
2761
2762 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2763 {
2764 if (++cur_line_nbytes >= cur_line_alloc-1)
2765 {
2766 register int num_pages = cur_line_alloc / PAGE_SIZE;
2767 register char *old_buffer = cur_line_start;
2768
2769 cur_line_alloc += PAGE_SIZE;
2770 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2771 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2772
2773 ptr = cur_line_start + cur_line_nbytes - 1;
2774 }
2775
2776 if (ch == '\n')
2777 {
2778 *ptr++ = '\n';
2779 *ptr = '\0';
2780 cur_line_ptr = cur_line_start;
2781 return cur_line_ptr;
2782 }
2783
2784 else if (ch == '\0')
2785 error ("Null character found in input");
2786
2787 else if (!comment_p)
2788 {
2789 if (ch == '"')
2790 string_p = !string_p;
2791
2792 else if (ch == '#')
2793 comment_p++;
2794
2795 else if (ch == ';' && !string_p)
2796 {
2797 line_split_p = 1;
2798 *ptr++ = '\n';
2799 *ptr = '\0';
2800 cur_line_ptr = cur_line_start;
2801 return cur_line_ptr;
2802 }
2803 }
2804 }
2805
2806 if (ferror (stdin))
2807 pfatal_with_name (input_name);
2808
2809 cur_line_ptr = (char *)0;
2810 return (char *)0;
2811 }
2812
2813 \f
2814 /* Parse #.begin directives which have a label as the first argument
2815 which gives the location of the start of the block. */
2816
2817 STATIC void
2818 parse_begin (start)
2819 const char *start; /* start of directive */
2820 {
2821 const char *end_p1; /* end of label */
2822 int ch;
2823 shash_t *hash_ptr; /* hash pointer to lookup label */
2824
2825 if (cur_file_ptr == (efdr_t *)0)
2826 {
2827 error ("#.begin directive without a preceding .file directive");
2828 return;
2829 }
2830
2831 if (cur_proc_ptr == (PDR *)0)
2832 {
2833 error ("#.begin directive without a preceding .ent directive");
2834 return;
2835 }
2836
2837 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2838 ;
2839
2840 hash_ptr = hash_string (start,
2841 end_p1 - start,
2842 &orig_str_hash[0],
2843 (symint_t *)0);
2844
2845 if (hash_ptr == (shash_t *)0)
2846 {
2847 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2848 return;
2849 }
2850
2851 if (cur_oproc_begin == (SYMR *)0)
2852 {
2853 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2854 return;
2855 }
2856
2857 (void) add_local_symbol ((const char *)0, (const char *)0,
2858 st_Block, sc_Text,
2859 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2860 (symint_t)0);
2861 }
2862
2863 \f
2864 /* Parse #.bend directives which have a label as the first argument
2865 which gives the location of the end of the block. */
2866
2867 STATIC void
2868 parse_bend (start)
2869 const char *start; /* start of directive */
2870 {
2871 const char *end_p1; /* end of label */
2872 int ch;
2873 shash_t *hash_ptr; /* hash pointer to lookup label */
2874
2875 if (cur_file_ptr == (efdr_t *)0)
2876 {
2877 error ("#.begin directive without a preceding .file directive");
2878 return;
2879 }
2880
2881 if (cur_proc_ptr == (PDR *)0)
2882 {
2883 error ("#.bend directive without a preceding .ent directive");
2884 return;
2885 }
2886
2887 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2888 ;
2889
2890 hash_ptr = hash_string (start,
2891 end_p1 - start,
2892 &orig_str_hash[0],
2893 (symint_t *)0);
2894
2895 if (hash_ptr == (shash_t *)0)
2896 {
2897 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2898 return;
2899 }
2900
2901 if (cur_oproc_begin == (SYMR *)0)
2902 {
2903 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2904 return;
2905 }
2906
2907 (void) add_local_symbol ((const char *)0, (const char *)0,
2908 st_End, sc_Text,
2909 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2910 (symint_t)0);
2911 }
2912
2913 \f
2914 /* Parse #.def directives, which are contain standard COFF subdirectives
2915 to describe the debugging format. These subdirectives include:
2916
2917 .scl specify storage class
2918 .val specify a value
2919 .endef specify end of COFF directives
2920 .type specify the type
2921 .size specify the size of an array
2922 .dim specify an array dimension
2923 .tag specify a tag for a struct, union, or enum. */
2924
2925 STATIC void
2926 parse_def (name_start)
2927 const char *name_start; /* start of directive */
2928 {
2929 const char *dir_start; /* start of current directive*/
2930 const char *dir_end_p1; /* end+1 of current directive*/
2931 const char *arg_start; /* start of current argument */
2932 const char *arg_end_p1; /* end+1 of current argument */
2933 const char *name_end_p1; /* end+1 of label */
2934 const char *tag_start = (const char *)0; /* start of tag name */
2935 const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2936 sc_t storage_class = sc_Nil;
2937 st_t symbol_type = st_Nil;
2938 type_info_t t;
2939 EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2940 int is_function = 0; /* != 0 if function */
2941 symint_t value = 0;
2942 symint_t indx = cur_file_ptr->void_type;
2943 int error_line = 0;
2944 symint_t arg_number;
2945 symint_t temp_array[ N_TQ ];
2946 int arg_was_number;
2947 int ch, i;
2948 Ptrdiff_t len;
2949
2950 static int inside_enumeration = 0; /* is this an enumeration? */
2951
2952
2953 /* Initialize the type information. */
2954 t = type_info_init;
2955
2956
2957 /* Search for the end of the name being defined. */
2958 /* Allow spaces and such in names for G++ templates, which produce stabs
2959 that look like:
2960
2961 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2962
2963 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2964 ;
2965
2966 if (ch == '\0')
2967 {
2968 error_line = __LINE__;
2969 saber_stop ();
2970 goto bomb_out;
2971 }
2972
2973 /* Parse the remaining subdirectives now. */
2974 dir_start = name_end_p1+1;
2975 for (;;)
2976 {
2977 while ((ch = *dir_start) == ' ' || ch == '\t')
2978 ++dir_start;
2979
2980 if (ch != '.')
2981 {
2982 error_line = __LINE__;
2983 saber_stop ();
2984 goto bomb_out;
2985 }
2986
2987 /* Are we done? */
2988 if (dir_start[1] == 'e'
2989 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2990 break;
2991
2992 /* Pick up the subdirective now */
2993 for (dir_end_p1 = dir_start+1;
2994 (ch = *dir_end_p1) != ' ' && ch != '\t';
2995 dir_end_p1++)
2996 {
2997 if (ch == '\0' || isspace (ch))
2998 {
2999 error_line = __LINE__;
3000 saber_stop ();
3001 goto bomb_out;
3002 }
3003 }
3004
3005 /* Pick up the subdirective argument now. */
3006 arg_was_number = arg_number = 0;
3007 arg_end_p1 = (const char *)0;
3008 arg_start = dir_end_p1+1;
3009 ch = *arg_start;
3010 while (ch == ' ' || ch == '\t')
3011 ch = *++arg_start;
3012
3013 if (isdigit (ch) || ch == '-' || ch == '+')
3014 {
3015 int ch2;
3016 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3017 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3018 arg_was_number++;
3019 }
3020
3021 else if (ch == '\0' || isspace (ch))
3022 {
3023 error_line = __LINE__;
3024 saber_stop ();
3025 goto bomb_out;
3026 }
3027
3028 if (!arg_was_number)
3029 {
3030 /* Allow spaces and such in names for G++ templates. */
3031 for (arg_end_p1 = arg_start+1;
3032 (ch = *arg_end_p1) != ';' && ch != '\0';
3033 arg_end_p1++)
3034 ;
3035
3036 if (ch == '\0')
3037 {
3038 error_line = __LINE__;
3039 saber_stop ();
3040 goto bomb_out;
3041 }
3042 }
3043
3044 /* Classify the directives now. */
3045 len = dir_end_p1 - dir_start;
3046 switch (dir_start[1])
3047 {
3048 default:
3049 error_line = __LINE__;
3050 saber_stop ();
3051 goto bomb_out;
3052
3053 case 'd':
3054 if (len == sizeof (".dim")-1
3055 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3056 && arg_was_number)
3057 {
3058 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3059
3060 *t_ptr = arg_number;
3061 while (*arg_end_p1 == ',' && arg_was_number)
3062 {
3063 arg_start = arg_end_p1+1;
3064 ch = *arg_start;
3065 while (ch == ' ' || ch == '\t')
3066 ch = *++arg_start;
3067
3068 arg_was_number = 0;
3069 if (isdigit (ch) || ch == '-' || ch == '+')
3070 {
3071 int ch2;
3072 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3073 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3074 arg_was_number++;
3075
3076 if (t_ptr == &temp_array[0])
3077 {
3078 error_line = __LINE__;
3079 saber_stop ();
3080 goto bomb_out;
3081 }
3082
3083 *--t_ptr = arg_number;
3084 }
3085 }
3086
3087 /* Reverse order of dimensions. */
3088 while (t_ptr <= &temp_array[ N_TQ-1 ])
3089 {
3090 if (t.num_dims >= N_TQ-1)
3091 {
3092 error_line = __LINE__;
3093 saber_stop ();
3094 goto bomb_out;
3095 }
3096
3097 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3098 }
3099 break;
3100 }
3101 else
3102 {
3103 error_line = __LINE__;
3104 saber_stop ();
3105 goto bomb_out;
3106 }
3107
3108
3109 case 's':
3110 if (len == sizeof (".scl")-1
3111 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3112 && arg_was_number
3113 && arg_number < ((symint_t) C_MAX))
3114 {
3115 /* If the symbol is a static or external, we have
3116 already gotten the appropriate type and class, so
3117 make sure we don't override those values. This is
3118 needed because there are some type and classes that
3119 are not in COFF, such as short data, etc. */
3120 if (symbol_type == st_Nil)
3121 {
3122 symbol_type = map_coff_sym_type[arg_number];
3123 storage_class = map_coff_storage [arg_number];
3124 }
3125 break;
3126 }
3127
3128 else if (len == sizeof (".size")-1
3129 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3130 && arg_was_number)
3131 {
3132 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3133
3134 *t_ptr = arg_number;
3135 while (*arg_end_p1 == ',' && arg_was_number)
3136 {
3137 arg_start = arg_end_p1+1;
3138 ch = *arg_start;
3139 while (ch == ' ' || ch == '\t')
3140 ch = *++arg_start;
3141
3142 arg_was_number = 0;
3143 if (isdigit (ch) || ch == '-' || ch == '+')
3144 {
3145 int ch2;
3146 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3147 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3148 arg_was_number++;
3149
3150 if (t_ptr == &temp_array[0])
3151 {
3152 error_line = __LINE__;
3153 saber_stop ();
3154 goto bomb_out;
3155 }
3156
3157 *--t_ptr = arg_number;
3158 }
3159 }
3160
3161 /* Reverse order of sizes. */
3162 while (t_ptr <= &temp_array[ N_TQ-1 ])
3163 {
3164 if (t.num_sizes >= N_TQ-1)
3165 {
3166 error_line = __LINE__;
3167 saber_stop ();
3168 goto bomb_out;
3169 }
3170
3171 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3172 }
3173 break;
3174 }
3175
3176 else
3177 {
3178 error_line = __LINE__;
3179 saber_stop ();
3180 goto bomb_out;
3181 }
3182
3183
3184 case 't':
3185 if (len == sizeof (".type")-1
3186 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3187 && arg_was_number)
3188 {
3189 tq_t *tq_ptr = &t.type_qualifiers[0];
3190
3191 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3192 t.basic_type = map_coff_types [(int)t.orig_type];
3193 for (i = N_TQ-1; i >= 0; i--)
3194 {
3195 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3196 & N_TMASK);
3197
3198 if (dt != (int)DT_NON)
3199 *tq_ptr++ = map_coff_derived_type [dt];
3200 }
3201
3202 /* If this is a function, ignore it, so that we don't get
3203 two entries (one from the .ent, and one for the .def
3204 that precedes it). Save the type information so that
3205 the end block can properly add it after the begin block
3206 index. For MIPS knows what reason, we must strip off
3207 the function type at this point. */
3208 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3209 {
3210 is_function = 1;
3211 tq_ptr[-1] = tq_Nil;
3212 }
3213
3214 break;
3215 }
3216
3217 else if (len == sizeof (".tag")-1
3218 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3219 {
3220 tag_start = arg_start;
3221 tag_end_p1 = arg_end_p1;
3222 break;
3223 }
3224
3225 else
3226 {
3227 error_line = __LINE__;
3228 saber_stop ();
3229 goto bomb_out;
3230 }
3231
3232
3233 case 'v':
3234 if (len == sizeof (".val")-1
3235 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3236 {
3237 if (arg_was_number)
3238 value = arg_number;
3239
3240 /* If the value is not an integer value, it must be the
3241 name of a static or global item. Look up the name in
3242 the original symbol table to pick up the storage
3243 class, symbol type, etc. */
3244 else
3245 {
3246 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3247 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3248
3249 ext_hash_ptr = hash_string (arg_start,
3250 arg_end_p1 - arg_start,
3251 &ext_str_hash[0],
3252 (symint_t *)0);
3253
3254 if (ext_hash_ptr != (shash_t *)0
3255 && ext_hash_ptr->esym_ptr != (EXTR *)0)
3256 eptr = ext_hash_ptr->esym_ptr;
3257
3258 orig_hash_ptr = hash_string (arg_start,
3259 arg_end_p1 - arg_start,
3260 &orig_str_hash[0],
3261 (symint_t *)0);
3262
3263 if ((orig_hash_ptr == (shash_t *)0
3264 || orig_hash_ptr->sym_ptr == (SYMR *)0)
3265 && eptr == (EXTR *)0)
3266 {
3267 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3268 arg_end_p1 - arg_start,
3269 arg_start);
3270 value = 0;
3271 }
3272 else
3273 {
3274 SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3275 && orig_hash_ptr->sym_ptr != (SYMR *)0)
3276 ? orig_hash_ptr->sym_ptr
3277 : &eptr->asym;
3278
3279 symbol_type = (st_t) ptr->st;
3280 storage_class = (sc_t) ptr->sc;
3281 value = ptr->value;
3282 }
3283 }
3284 break;
3285 }
3286 else
3287 {
3288 error_line = __LINE__;
3289 saber_stop ();
3290 goto bomb_out;
3291 }
3292 }
3293
3294 /* Set up to find next directive. */
3295 dir_start = arg_end_p1 + 1;
3296 }
3297
3298
3299 t.extra_sizes = (tag_start != (char *)0);
3300 if (t.num_dims > 0)
3301 {
3302 int diff = t.num_dims - t.num_sizes;
3303 int i = t.num_dims - 1;
3304 int j;
3305
3306 if (t.num_sizes != 1 || diff < 0)
3307 {
3308 error_line = __LINE__;
3309 saber_stop ();
3310 goto bomb_out;
3311 }
3312
3313 /* If this is an array, make sure the same number of dimensions
3314 and sizes were passed, creating extra sizes for multiply
3315 dimensioned arrays if not passed. */
3316
3317 t.extra_sizes = 0;
3318 if (diff)
3319 {
3320 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3321 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3322
3323 t.num_sizes = i + 1;
3324 for ( i--; i >= 0; i-- )
3325 {
3326 if (t.dimensions[ i+1 ])
3327 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3328 else
3329 t.sizes[ i ] = t.sizes[ i+1 ];
3330 }
3331 }
3332 }
3333
3334 else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3335 { /* Is this a bitfield? This is indicated by a structure memeber
3336 having a size field that isn't an array. */
3337
3338 t.bitfield = 1;
3339 }
3340
3341
3342 /* Except for enumeration members & begin/ending of scopes, put the
3343 type word in the aux. symbol table. */
3344
3345 if (symbol_type == st_Block || symbol_type == st_End)
3346 indx = 0;
3347
3348 else if (inside_enumeration)
3349 indx = cur_file_ptr->void_type;
3350
3351 else
3352 {
3353 if (t.basic_type == bt_Struct
3354 || t.basic_type == bt_Union
3355 || t.basic_type == bt_Enum)
3356 {
3357 if (tag_start == (char *)0)
3358 {
3359 error ("No tag specified for %.*s",
3360 name_end_p1 - name_start,
3361 name_start);
3362 return;
3363 }
3364
3365 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3366 t.basic_type);
3367 }
3368
3369 if (is_function)
3370 {
3371 last_func_type_info = t;
3372 last_func_eptr = eptr;
3373 return;
3374 }
3375
3376 indx = add_aux_sym_tir (&t,
3377 hash_yes,
3378 &cur_file_ptr->thash_head[0]);
3379 }
3380
3381
3382 /* If this is an external or static symbol, update the appropriate
3383 external symbol. */
3384
3385 if (eptr != (EXTR *)0
3386 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3387 {
3388 eptr->ifd = cur_file_ptr->file_index;
3389 eptr->asym.index = indx;
3390 }
3391
3392
3393 /* Do any last minute adjustments that are necessary. */
3394 switch (symbol_type)
3395 {
3396 default:
3397 break;
3398
3399
3400 /* For the beginning of structs, unions, and enumerations, the
3401 size info needs to be passed in the value field. */
3402
3403 case st_Block:
3404 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3405 {
3406 error_line = __LINE__;
3407 saber_stop ();
3408 goto bomb_out;
3409 }
3410
3411 else
3412 value = t.sizes[0];
3413
3414 inside_enumeration = (t.orig_type == T_ENUM);
3415 break;
3416
3417
3418 /* For the end of structs, unions, and enumerations, omit the
3419 name which is always ".eos". This needs to be done last, so
3420 that any error reporting above gives the correct name. */
3421
3422 case st_End:
3423 name_start = name_end_p1 = (const char *)0;
3424 value = inside_enumeration = 0;
3425 break;
3426
3427
3428 /* Members of structures and unions that aren't bitfields, need
3429 to adjust the value from a byte offset to a bit offset.
3430 Members of enumerations do not have the value adjusted, and
3431 can be distinguished by indx == indexNil. For enumerations,
3432 update the maximum enumeration value. */
3433
3434 case st_Member:
3435 if (!t.bitfield && !inside_enumeration)
3436 value *= 8;
3437
3438 break;
3439 }
3440
3441
3442 /* Add the symbol, except for global symbols outside of functions,
3443 for which the external symbol table is fine enough. */
3444
3445 if (eptr == (EXTR *)0
3446 || eptr->asym.st == (int)st_Nil
3447 || cur_proc_ptr != (PDR *)0)
3448 {
3449 symint_t isym = add_local_symbol (name_start, name_end_p1,
3450 symbol_type, storage_class,
3451 value,
3452 indx);
3453
3454 /* deal with struct, union, and enum tags. */
3455 if (symbol_type == st_Block)
3456 {
3457 /* Create or update the tag information. */
3458 tag_t *tag_ptr = get_tag (name_start,
3459 name_end_p1,
3460 isym,
3461 t.basic_type);
3462
3463 /* If there are any forward references, fill in the appropriate
3464 file and symbol indexes. */
3465
3466 symint_t file_index = cur_file_ptr->file_index;
3467 forward_t *f_next = tag_ptr->forward_ref;
3468 forward_t *f_cur;
3469
3470 while (f_next != (forward_t *)0)
3471 {
3472 f_cur = f_next;
3473 f_next = f_next->next;
3474
3475 f_cur->ifd_ptr->isym = file_index;
3476 f_cur->index_ptr->rndx.index = isym;
3477
3478 free_forward (f_cur);
3479 }
3480
3481 tag_ptr->forward_ref = (forward_t *)0;
3482 }
3483 }
3484
3485 /* Normal return */
3486 return;
3487
3488 /* Error return, issue message. */
3489 bomb_out:
3490 if (error_line)
3491 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3492 else
3493 error ("compiler error, badly formed #.def");
3494
3495 return;
3496 }
3497
3498 \f
3499 /* Parse .end directives. */
3500
3501 STATIC void
3502 parse_end (start)
3503 const char *start; /* start of directive */
3504 {
3505 register const char *start_func, *end_func_p1;
3506 register int ch;
3507 register symint_t value;
3508 register FDR *orig_fdr;
3509
3510 if (cur_file_ptr == (efdr_t *)0)
3511 {
3512 error (".end directive without a preceding .file directive");
3513 return;
3514 }
3515
3516 if (cur_proc_ptr == (PDR *)0)
3517 {
3518 error (".end directive without a preceding .ent directive");
3519 return;
3520 }
3521
3522 /* Get the function name, skipping whitespace. */
3523 for (start_func = start; isspace (*start_func); start_func++)
3524 ;
3525
3526 ch = *start_func;
3527 if (!IS_ASM_IDENT (ch))
3528 {
3529 error (".end directive has no name");
3530 return;
3531 }
3532
3533 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3534 ;
3535
3536
3537 /* Get the value field for creating the end from the original object
3538 file (which we find by locating the procedure start, and using the
3539 pointer to the end+1 block and backing up. The index points to a
3540 two word aux. symbol, whose first word is the index of the end
3541 symbol, and the second word is the type of the function return
3542 value. */
3543
3544 orig_fdr = cur_file_ptr->orig_fdr;
3545 value = 0;
3546 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3547 value = cur_oproc_end->value;
3548
3549 else
3550 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3551
3552 (void) add_local_symbol (start_func, end_func_p1,
3553 st_End, sc_Text,
3554 value,
3555 (symint_t)0);
3556
3557 cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3558 }
3559
3560 \f
3561 /* Parse .ent directives. */
3562
3563 STATIC void
3564 parse_ent (start)
3565 const char *start; /* start of directive */
3566 {
3567 register const char *start_func, *end_func_p1;
3568 register int ch;
3569
3570 if (cur_file_ptr == (efdr_t *)0)
3571 {
3572 error (".ent directive without a preceding .file directive");
3573 return;
3574 }
3575
3576 if (cur_proc_ptr != (PDR *)0)
3577 {
3578 error ("second .ent directive found before .end directive");
3579 return;
3580 }
3581
3582 for (start_func = start; isspace (*start_func); start_func++)
3583 ;
3584
3585 ch = *start_func;
3586 if (!IS_ASM_IDENT (ch))
3587 {
3588 error (".ent directive has no name");
3589 return;
3590 }
3591
3592 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3593 ;
3594
3595 (void) add_procedure (start_func, end_func_p1);
3596 }
3597
3598 \f
3599 /* Parse .file directives. */
3600
3601 STATIC void
3602 parse_file (start)
3603 const char *start; /* start of directive */
3604 {
3605 char *p;
3606 register char *start_name, *end_name_p1;
3607
3608 (void) strtol (start, &p, 0);
3609 if (start == p
3610 || (start_name = local_index (p, '"')) == (char *)0
3611 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
3612 {
3613 error ("Invalid .file directive");
3614 return;
3615 }
3616
3617 if (cur_proc_ptr != (PDR *)0)
3618 {
3619 error ("No way to handle .file within .ent/.end section");
3620 return;
3621 }
3622
3623 add_file (start_name, end_name_p1);
3624 }
3625
3626 \f
3627 /* Make sure the @stabs symbol is emitted. */
3628
3629 static void
3630 mark_stabs (start)
3631 const char *start; /* Start of directive (ignored) */
3632 {
3633 if (!stabs_seen)
3634 {
3635 /* Add a dummy @stabs dymbol. */
3636 stabs_seen = 1;
3637 (void) add_local_symbol (stabs_symbol,
3638 stabs_symbol + sizeof (stabs_symbol),
3639 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3640
3641 }
3642 }
3643
3644 \f
3645 /* Parse .stabs directives.
3646
3647 .stabs directives have five fields:
3648 "string" a string, encoding the type information.
3649 code a numeric code, defined in <stab.h>
3650 0 a zero
3651 0 a zero or line number
3652 value a numeric value or an address.
3653
3654 If the value is relocatable, we transform this into:
3655 iss points as an index into string space
3656 value value from lookup of the name
3657 st st from lookup of the name
3658 sc sc from lookup of the name
3659 index code|CODE_MASK
3660
3661 If the value is not relocatable, we transform this into:
3662 iss points as an index into string space
3663 value value
3664 st st_Nil
3665 sc sc_Nil
3666 index code|CODE_MASK
3667
3668 .stabn directives have four fields (string is null):
3669 code a numeric code, defined in <stab.h>
3670 0 a zero
3671 0 a zero or a line number
3672 value a numeric value or an address. */
3673
3674 STATIC void
3675 parse_stabs_common (string_start, string_end, rest)
3676 const char *string_start; /* start of string or NULL */
3677 const char *string_end; /* end+1 of string or NULL */
3678 const char *rest; /* rest of the directive. */
3679 {
3680 efdr_t *save_file_ptr = cur_file_ptr;
3681 symint_t code;
3682 symint_t value;
3683 char *p;
3684 st_t st;
3685 sc_t sc;
3686 int ch;
3687
3688 if (stabs_seen == 0)
3689 mark_stabs ("");
3690
3691 /* Read code from stabs. */
3692 if (!isdigit (*rest))
3693 {
3694 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3695 return;
3696 }
3697
3698 code = strtol (rest, &p, 0);
3699
3700 /* Line number stabs are handled differently, since they have two values,
3701 the line number and the address of the label. We use the index field
3702 (aka code) to hold the line number, and the value field to hold the
3703 address. The symbol type is st_Label, which should be different from
3704 the other stabs, so that gdb can recognize it. */
3705
3706 if (code == (int)N_SLINE)
3707 {
3708 SYMR *sym_ptr, dummy_symr;
3709 shash_t *shash_ptr;
3710
3711 /* Skip ,0, */
3712 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3713 {
3714 error ("Invalid line number .stabs/.stabn directive");
3715 return;
3716 }
3717
3718 code = strtol (p+3, &p, 0);
3719 ch = *++p;
3720 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3721 {
3722 error ("Invalid line number .stabs/.stabn directive");
3723 return;
3724 }
3725
3726 dummy_symr.index = code;
3727 if (dummy_symr.index != code)
3728 {
3729 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3730 code);
3731
3732 return;
3733 }
3734
3735 shash_ptr = hash_string (p,
3736 strlen (p) - 1,
3737 &orig_str_hash[0],
3738 (symint_t *)0);
3739
3740 if (shash_ptr == (shash_t *)0
3741 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3742 {
3743 error ("Invalid .stabs/.stabn directive, value not found");
3744 return;
3745 }
3746
3747 if ((st_t) sym_ptr->st != st_Label)
3748 {
3749 error ("Invalid line number .stabs/.stabn directive");
3750 return;
3751 }
3752
3753 st = st_Label;
3754 sc = (sc_t) sym_ptr->sc;
3755 value = sym_ptr->value;
3756 }
3757 else
3758 {
3759 /* Skip ,<num>,<num>, */
3760 if (*p++ != ',')
3761 goto failure;
3762 for (; isdigit (*p); p++)
3763 ;
3764 if (*p++ != ',')
3765 goto failure;
3766 for (; isdigit (*p); p++)
3767 ;
3768 if (*p++ != ',')
3769 goto failure;
3770 ch = *p;
3771 if (!IS_ASM_IDENT (ch) && ch != '-')
3772 {
3773 failure:
3774 error ("Invalid .stabs/.stabn directive, bad character");
3775 return;
3776 }
3777
3778 if (isdigit (ch) || ch == '-')
3779 {
3780 st = st_Nil;
3781 sc = sc_Nil;
3782 value = strtol (p, &p, 0);
3783 if (*p != '\n')
3784 {
3785 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3786 return;
3787 }
3788 }
3789 else if (!IS_ASM_IDENT (ch))
3790 {
3791 error ("Invalid .stabs/.stabn directive, bad character");
3792 return;
3793 }
3794 else
3795 {
3796 SYMR *sym_ptr;
3797 shash_t *shash_ptr;
3798 const char *start, *end_p1;
3799
3800 start = p;
3801 if ((end_p1 = strchr (start, '+')) == (char *)0)
3802 {
3803 if ((end_p1 = strchr (start, '-')) == (char *)0)
3804 end_p1 = start + strlen(start) - 1;
3805 }
3806
3807 shash_ptr = hash_string (start,
3808 end_p1 - start,
3809 &orig_str_hash[0],
3810 (symint_t *)0);
3811
3812 if (shash_ptr == (shash_t *)0
3813 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3814 {
3815 shash_ptr = hash_string (start,
3816 end_p1 - start,
3817 &ext_str_hash[0],
3818 (symint_t *)0);
3819
3820 if (shash_ptr == (shash_t *)0
3821 || shash_ptr->esym_ptr == (EXTR *)0)
3822 {
3823 error ("Invalid .stabs/.stabn directive, value not found");
3824 return;
3825 }
3826 else
3827 sym_ptr = &(shash_ptr->esym_ptr->asym);
3828 }
3829
3830 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3831 if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3832 {
3833 sc = scNil;
3834 st = stNil;
3835 }
3836 else
3837 {
3838 sc = (sc_t) sym_ptr->sc;
3839 st = (st_t) sym_ptr->st;
3840 }
3841 value = sym_ptr->value;
3842
3843 ch = *end_p1++;
3844 if (ch != '\n')
3845 {
3846 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3847 || ((ch != '+') && (ch != '-')))
3848 {
3849 error ("Invalid .stabs/.stabn directive, badly formed value");
3850 return;
3851 }
3852 if (ch == '+')
3853 value += strtol (end_p1, &p, 0);
3854 else if (ch == '-')
3855 value -= strtol (end_p1, &p, 0);
3856
3857 if (*p != '\n')
3858 {
3859 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3860 return;
3861 }
3862 }
3863 }
3864 code = MIPS_MARK_STAB(code);
3865 }
3866
3867 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3868 /* Restore normal file type. */
3869 cur_file_ptr = save_file_ptr;
3870 }
3871
3872
3873 STATIC void
3874 parse_stabs (start)
3875 const char *start; /* start of directive */
3876 {
3877 const char *end = local_index (start+1, '"');
3878
3879 if (*start != '"' || end == (const char *)0 || end[1] != ',')
3880 {
3881 error ("Invalid .stabs directive, no string");
3882 return;
3883 }
3884
3885 parse_stabs_common (start+1, end, end+2);
3886 }
3887
3888
3889 STATIC void
3890 parse_stabn (start)
3891 const char *start; /* start of directive */
3892 {
3893 parse_stabs_common ((const char *)0, (const char *)0, start);
3894 }
3895
3896 \f
3897 /* Parse the input file, and write the lines to the output file
3898 if needed. */
3899
3900 STATIC void
3901 parse_input __proto((void))
3902 {
3903 register char *p;
3904 register int i;
3905 register thead_t *ptag_head;
3906 register tag_t *ptag;
3907 register tag_t *ptag_next;
3908
3909 if (debug)
3910 fprintf (stderr, "\tinput\n");
3911
3912 /* Add a dummy scope block around the entire compilation unit for
3913 structures defined outside of blocks. */
3914 ptag_head = allocate_thead ();
3915 ptag_head->first_tag = 0;
3916 ptag_head->prev = cur_tag_head;
3917 cur_tag_head = ptag_head;
3918
3919 while ((p = read_line ()) != (char *)0)
3920 {
3921 /* Skip leading blanks */
3922 while (isspace (*p))
3923 p++;
3924
3925 /* See if it's a directive we handle. If so, dispatch handler. */
3926 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3927 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3928 && isspace (p[pseudo_ops[i].len]))
3929 {
3930 p += pseudo_ops[i].len; /* skip to first argument */
3931 while (isspace (*p))
3932 p++;
3933
3934 (*pseudo_ops[i].func)( p );
3935 break;
3936 }
3937 }
3938
3939 /* Process any tags at global level. */
3940 ptag_head = cur_tag_head;
3941 cur_tag_head = ptag_head->prev;
3942
3943 for (ptag = ptag_head->first_tag;
3944 ptag != (tag_t *)0;
3945 ptag = ptag_next)
3946 {
3947 if (ptag->forward_ref != (forward_t *)0)
3948 add_unknown_tag (ptag);
3949
3950 ptag_next = ptag->same_block;
3951 ptag->hash_ptr->tag_ptr = ptag->same_name;
3952 free_tag (ptag);
3953 }
3954
3955 free_thead (ptag_head);
3956
3957 }
3958
3959 \f
3960 /* Update the global headers with the final offsets in preparation
3961 to write out the .T file. */
3962
3963 STATIC void
3964 update_headers __proto((void))
3965 {
3966 register symint_t i;
3967 register efdr_t *file_ptr;
3968
3969 /* Set up the symbolic header. */
3970 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3971 symbolic_header.magic = orig_sym_hdr.magic;
3972 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3973
3974 /* Set up global counts. */
3975 symbolic_header.issExtMax = ext_strings.num_allocated;
3976 symbolic_header.idnMax = dense_num.num_allocated;
3977 symbolic_header.ifdMax = file_desc.num_allocated;
3978 symbolic_header.iextMax = ext_symbols.num_allocated;
3979 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3980 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3981 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3982 symbolic_header.crfd = orig_sym_hdr.crfd;
3983
3984
3985 /* Loop through each file, figuring out how many local syms,
3986 line numbers, etc. there are. Also, put out end symbol
3987 for the filename. */
3988
3989 for (file_ptr = first_file;
3990 file_ptr != (efdr_t *)0;
3991 file_ptr = file_ptr->next_file)
3992 {
3993 register SYMR *sym_start;
3994 register SYMR *sym;
3995 register SYMR *sym_end_p1;
3996 register FDR *fd_ptr = file_ptr->orig_fdr;
3997
3998 cur_file_ptr = file_ptr;
3999
4000 /* Copy st_Static symbols from the original local symbol table if
4001 they did not get added to the new local symbol table.
4002 This happens with stabs-in-ecoff or if the source file is
4003 compiled without debugging. */
4004 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4005 sym_end_p1 = sym_start + fd_ptr->csym;
4006 for (sym = sym_start; sym < sym_end_p1; sym++)
4007 {
4008 if ((st_t)sym->st == st_Static)
4009 {
4010 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4011 register Size_t len = strlen (str);
4012 register shash_t *hash_ptr;
4013
4014 /* Ignore internal labels. */
4015 if (str[0] == '$' && str[1] == 'L')
4016 continue;
4017 hash_ptr = hash_string (str,
4018 (Ptrdiff_t)len,
4019 &file_ptr->shash_head[0],
4020 (symint_t *)0);
4021 if (hash_ptr == (shash_t *)0)
4022 {
4023 (void) add_local_symbol (str, str + len,
4024 (st_t)sym->st, (sc_t)sym->sc,
4025 (symint_t)sym->value,
4026 (symint_t)indexNil);
4027 }
4028 }
4029 }
4030 (void) add_local_symbol ((const char *)0, (const char *)0,
4031 st_End, sc_Text,
4032 (symint_t)0,
4033 (symint_t)0);
4034
4035 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4036 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4037 symbolic_header.ipdMax += file_ptr->fdr.cpd;
4038
4039 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4040 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4041 symbolic_header.isymMax += file_ptr->fdr.csym;
4042
4043 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4044 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4045 symbolic_header.iauxMax += file_ptr->fdr.caux;
4046
4047 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4048 file_ptr->fdr.issBase = symbolic_header.issMax;
4049 symbolic_header.issMax += file_ptr->fdr.cbSs;
4050 }
4051
4052 #ifndef ALIGN_SYMTABLE_OFFSET
4053 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4054 #endif
4055
4056 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4057 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4058 if (i > 0)
4059 {
4060 symbolic_header.cbLineOffset = file_offset;
4061 file_offset += i;
4062 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4063 }
4064
4065 i = symbolic_header.ioptMax; /* optimization symbols */
4066 if (((long) i) > 0)
4067 {
4068 symbolic_header.cbOptOffset = file_offset;
4069 file_offset += i * sizeof (OPTR);
4070 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4071 }
4072
4073 i = symbolic_header.idnMax; /* dense numbers */
4074 if (i > 0)
4075 {
4076 symbolic_header.cbDnOffset = file_offset;
4077 file_offset += i * sizeof (DNR);
4078 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4079 }
4080
4081 i = symbolic_header.ipdMax; /* procedure tables */
4082 if (i > 0)
4083 {
4084 symbolic_header.cbPdOffset = file_offset;
4085 file_offset += i * sizeof (PDR);
4086 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4087 }
4088
4089 i = symbolic_header.isymMax; /* local symbols */
4090 if (i > 0)
4091 {
4092 symbolic_header.cbSymOffset = file_offset;
4093 file_offset += i * sizeof (SYMR);
4094 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4095 }
4096
4097 i = symbolic_header.iauxMax; /* aux syms. */
4098 if (i > 0)
4099 {
4100 symbolic_header.cbAuxOffset = file_offset;
4101 file_offset += i * sizeof (TIR);
4102 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4103 }
4104
4105 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4106 if (i > 0)
4107 {
4108 symbolic_header.cbSsOffset = file_offset;
4109 file_offset += i;
4110 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4111 }
4112
4113 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4114 if (i > 0)
4115 {
4116 symbolic_header.cbSsExtOffset = file_offset;
4117 file_offset += i;
4118 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4119 }
4120
4121 i = symbolic_header.ifdMax; /* file tables */
4122 if (i > 0)
4123 {
4124 symbolic_header.cbFdOffset = file_offset;
4125 file_offset += i * sizeof (FDR);
4126 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4127 }
4128
4129 i = symbolic_header.crfd; /* relative file descriptors */
4130 if (i > 0)
4131 {
4132 symbolic_header.cbRfdOffset = file_offset;
4133 file_offset += i * sizeof (symint_t);
4134 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4135 }
4136
4137 i = symbolic_header.iextMax; /* external symbols */
4138 if (i > 0)
4139 {
4140 symbolic_header.cbExtOffset = file_offset;
4141 file_offset += i * sizeof (EXTR);
4142 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4143 }
4144 }
4145
4146 \f
4147 /* Write out a varray at a given location. */
4148
4149 STATIC void
4150 write_varray (vp, offset, str)
4151 varray_t *vp; /* virtual array */
4152 off_t offset; /* offset to write varray to */
4153 const char *str; /* string to print out when tracing */
4154 {
4155 int num_write, sys_write;
4156 vlinks_t *ptr;
4157
4158 if (vp->num_allocated == 0)
4159 return;
4160
4161 if (debug)
4162 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4163 vp, offset, vp->num_allocated * vp->object_size, str);
4164
4165 if (file_offset != offset
4166 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4167 pfatal_with_name (object_name);
4168
4169 for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4170 {
4171 num_write = (ptr->next == (vlinks_t *)0)
4172 ? vp->objects_last_page * vp->object_size
4173 : vp->objects_per_page * vp->object_size;
4174
4175 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4176 if (sys_write <= 0)
4177 pfatal_with_name (object_name);
4178
4179 else if (sys_write != num_write)
4180 fatal ("Wrote %d bytes to %s, system returned %d",
4181 num_write,
4182 object_name,
4183 sys_write);
4184
4185 file_offset += num_write;
4186 }
4187 }
4188
4189 \f
4190 /* Write out the symbol table in the object file. */
4191
4192 STATIC void
4193 write_object __proto((void))
4194 {
4195 int sys_write;
4196 efdr_t *file_ptr;
4197 off_t offset;
4198
4199 if (debug)
4200 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4201 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4202 "symbolic header");
4203
4204 sys_write = fwrite ((PTR_T) &symbolic_header,
4205 1,
4206 sizeof (symbolic_header),
4207 object_stream);
4208
4209 if (sys_write < 0)
4210 pfatal_with_name (object_name);
4211
4212 else if (sys_write != sizeof (symbolic_header))
4213 fatal ("Wrote %d bytes to %s, system returned %d",
4214 sizeof (symbolic_header),
4215 object_name,
4216 sys_write);
4217
4218
4219 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4220
4221 if (symbolic_header.cbLine > 0) /* line numbers */
4222 {
4223 long sys_write;
4224
4225 if (file_offset != symbolic_header.cbLineOffset
4226 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4227 pfatal_with_name (object_name);
4228
4229 if (debug)
4230 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4231 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4232 symbolic_header.cbLine, "Line numbers");
4233
4234 sys_write = fwrite ((PTR_T) orig_linenum,
4235 1,
4236 symbolic_header.cbLine,
4237 object_stream);
4238
4239 if (sys_write <= 0)
4240 pfatal_with_name (object_name);
4241
4242 else if (sys_write != symbolic_header.cbLine)
4243 fatal ("Wrote %d bytes to %s, system returned %d",
4244 symbolic_header.cbLine,
4245 object_name,
4246 sys_write);
4247
4248 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4249 }
4250
4251 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4252 {
4253 long sys_write;
4254 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4255
4256 if (file_offset != symbolic_header.cbOptOffset
4257 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4258 pfatal_with_name (object_name);
4259
4260 if (debug)
4261 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4262 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4263 num_write, "Optimizer symbols");
4264
4265 sys_write = fwrite ((PTR_T) orig_opt_syms,
4266 1,
4267 num_write,
4268 object_stream);
4269
4270 if (sys_write <= 0)
4271 pfatal_with_name (object_name);
4272
4273 else if (sys_write != num_write)
4274 fatal ("Wrote %d bytes to %s, system returned %d",
4275 num_write,
4276 object_name,
4277 sys_write);
4278
4279 file_offset = symbolic_header.cbOptOffset + num_write;
4280 }
4281
4282 if (symbolic_header.idnMax > 0) /* dense numbers */
4283 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4284
4285 if (symbolic_header.ipdMax > 0) /* procedure tables */
4286 {
4287 offset = symbolic_header.cbPdOffset;
4288 for (file_ptr = first_file;
4289 file_ptr != (efdr_t *)0;
4290 file_ptr = file_ptr->next_file)
4291 {
4292 write_varray (&file_ptr->procs, offset, "Procedure tables");
4293 offset = file_offset;
4294 }
4295 }
4296
4297 if (symbolic_header.isymMax > 0) /* local symbols */
4298 {
4299 offset = symbolic_header.cbSymOffset;
4300 for (file_ptr = first_file;
4301 file_ptr != (efdr_t *)0;
4302 file_ptr = file_ptr->next_file)
4303 {
4304 write_varray (&file_ptr->symbols, offset, "Local symbols");
4305 offset = file_offset;
4306 }
4307 }
4308
4309 if (symbolic_header.iauxMax > 0) /* aux symbols */
4310 {
4311 offset = symbolic_header.cbAuxOffset;
4312 for (file_ptr = first_file;
4313 file_ptr != (efdr_t *)0;
4314 file_ptr = file_ptr->next_file)
4315 {
4316 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4317 offset = file_offset;
4318 }
4319 }
4320
4321 if (symbolic_header.issMax > 0) /* local strings */
4322 {
4323 offset = symbolic_header.cbSsOffset;
4324 for (file_ptr = first_file;
4325 file_ptr != (efdr_t *)0;
4326 file_ptr = file_ptr->next_file)
4327 {
4328 write_varray (&file_ptr->strings, offset, "Local strings");
4329 offset = file_offset;
4330 }
4331 }
4332
4333 if (symbolic_header.issExtMax > 0) /* external strings */
4334 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4335
4336 if (symbolic_header.ifdMax > 0) /* file tables */
4337 {
4338 offset = symbolic_header.cbFdOffset;
4339 if (file_offset != offset
4340 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4341 pfatal_with_name (object_name);
4342
4343 file_offset = offset;
4344 for (file_ptr = first_file;
4345 file_ptr != (efdr_t *)0;
4346 file_ptr = file_ptr->next_file)
4347 {
4348 if (debug)
4349 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4350 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4351
4352 sys_write = fwrite (&file_ptr->fdr,
4353 1,
4354 sizeof (FDR),
4355 object_stream);
4356
4357 if (sys_write < 0)
4358 pfatal_with_name (object_name);
4359
4360 else if (sys_write != sizeof (FDR))
4361 fatal ("Wrote %d bytes to %s, system returned %d",
4362 sizeof (FDR),
4363 object_name,
4364 sys_write);
4365
4366 file_offset = offset += sizeof (FDR);
4367 }
4368 }
4369
4370 if (symbolic_header.crfd > 0) /* relative file descriptors */
4371 {
4372 long sys_write;
4373 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4374
4375 if (file_offset != symbolic_header.cbRfdOffset
4376 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4377 pfatal_with_name (object_name);
4378
4379 if (debug)
4380 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4381 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4382 num_write, "Relative file descriptors");
4383
4384 sys_write = fwrite (orig_rfds,
4385 1,
4386 num_write,
4387 object_stream);
4388
4389 if (sys_write <= 0)
4390 pfatal_with_name (object_name);
4391
4392 else if (sys_write != num_write)
4393 fatal ("Wrote %d bytes to %s, system returned %d",
4394 num_write,
4395 object_name,
4396 sys_write);
4397
4398 file_offset = symbolic_header.cbRfdOffset + num_write;
4399 }
4400
4401 if (symbolic_header.issExtMax > 0) /* external symbols */
4402 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4403
4404 if (fclose (object_stream) != 0)
4405 pfatal_with_name (object_name);
4406 }
4407
4408 \f
4409 /* Read some bytes at a specified location, and return a pointer. */
4410
4411 STATIC page_t *
4412 read_seek (size, offset, str)
4413 Size_t size; /* # bytes to read */
4414 off_t offset; /* offset to read at */
4415 const char *str; /* name for tracing */
4416 {
4417 page_t *ptr;
4418 long sys_read = 0;
4419
4420 if (size == 0) /* nothing to read */
4421 return (page_t *)0;
4422
4423 if (debug)
4424 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4425 size, offset, file_offset, str);
4426
4427 #ifndef MALLOC_CHECK
4428 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4429 #else
4430 ptr = (page_t *) xcalloc (1, size);
4431 #endif
4432
4433 /* If we need to seek, and the distance is nearby, just do some reads,
4434 to speed things up. */
4435 if (file_offset != offset)
4436 {
4437 symint_t difference = offset - file_offset;
4438
4439 if (difference < 8)
4440 {
4441 char small_buffer[8];
4442
4443 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4444 if (sys_read <= 0)
4445 pfatal_with_name (obj_in_name);
4446
4447 if (sys_read != difference)
4448 fatal ("Wanted to read %d bytes from %s, system returned %d",
4449 size,
4450 obj_in_name,
4451 sys_read);
4452 }
4453 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4454 pfatal_with_name (obj_in_name);
4455 }
4456
4457 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4458 if (sys_read <= 0)
4459 pfatal_with_name (obj_in_name);
4460
4461 if (sys_read != size)
4462 fatal ("Wanted to read %d bytes from %s, system returned %d",
4463 size,
4464 obj_in_name,
4465 sys_read);
4466
4467 file_offset = offset + size;
4468
4469 if (file_offset > max_file_offset)
4470 max_file_offset = file_offset;
4471
4472 return ptr;
4473 }
4474
4475 \f
4476 /* Read the existing object file (and copy to the output object file
4477 if it is different from the input object file), and remove the old
4478 symbol table. */
4479
4480 STATIC void
4481 copy_object __proto((void))
4482 {
4483 char buffer[ PAGE_SIZE ];
4484 register int sys_read;
4485 register int remaining;
4486 register int num_write;
4487 register int sys_write;
4488 register int fd, es;
4489 register int delete_ifd = 0;
4490 register int *remap_file_number;
4491 struct stat stat_buf;
4492
4493 if (debug)
4494 fprintf (stderr, "\tcopy\n");
4495
4496 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4497 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4498 pfatal_with_name (obj_in_name);
4499
4500 sys_read = fread ((PTR_T) &orig_file_header,
4501 1,
4502 sizeof (struct filehdr),
4503 obj_in_stream);
4504
4505 if (sys_read < 0)
4506 pfatal_with_name (obj_in_name);
4507
4508 else if (sys_read == 0 && feof (obj_in_stream))
4509 return; /* create a .T file sans file header */
4510
4511 else if (sys_read < sizeof (struct filehdr))
4512 fatal ("Wanted to read %d bytes from %s, system returned %d",
4513 sizeof (struct filehdr),
4514 obj_in_name,
4515 sys_read);
4516
4517
4518 if (orig_file_header.f_nsyms != sizeof (HDRR))
4519 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4520 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4521
4522
4523 /* Read in the current symbolic header. */
4524 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4525 pfatal_with_name (input_name);
4526
4527 sys_read = fread ((PTR_T) &orig_sym_hdr,
4528 1,
4529 sizeof (orig_sym_hdr),
4530 obj_in_stream);
4531
4532 if (sys_read < 0)
4533 pfatal_with_name (object_name);
4534
4535 else if (sys_read < sizeof (struct filehdr))
4536 fatal ("Wanted to read %d bytes from %s, system returned %d",
4537 sizeof (struct filehdr),
4538 obj_in_name,
4539 sys_read);
4540
4541
4542 /* Read in each of the sections if they exist in the object file.
4543 We read things in in the order the mips assembler creates the
4544 sections, so in theory no extra seeks are done.
4545
4546 For simplicity sake, round each read up to a page boundary,
4547 we may want to revisit this later.... */
4548
4549 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4550
4551 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4552 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4553 orig_sym_hdr.cbLineOffset,
4554 "Line numbers");
4555
4556 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4557 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4558 orig_sym_hdr.cbPdOffset,
4559 "Procedure tables");
4560
4561 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4562 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4563 orig_sym_hdr.cbSymOffset,
4564 "Local symbols");
4565
4566 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4567 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4568 orig_sym_hdr.cbAuxOffset,
4569 "Aux. symbols");
4570
4571 if (orig_sym_hdr.issMax > 0) /* local strings */
4572 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4573 orig_sym_hdr.cbSsOffset,
4574 "Local strings");
4575
4576 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4577 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4578 orig_sym_hdr.cbSsExtOffset,
4579 "External strings");
4580
4581 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4582 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4583 orig_sym_hdr.cbFdOffset,
4584 "File tables");
4585
4586 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4587 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4588 orig_sym_hdr.cbRfdOffset,
4589 "Relative file descriptors");
4590
4591 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4592 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4593 orig_sym_hdr.cbExtOffset,
4594 "External symbols");
4595
4596 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4597 {
4598 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4599 orig_sym_hdr.cbDnOffset,
4600 "Dense numbers");
4601
4602 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4603 }
4604
4605 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4606 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4607 orig_sym_hdr.cbOptOffset,
4608 "Optimizer symbols");
4609
4610
4611
4612 /* Abort if the symbol table is not last. */
4613 if (max_file_offset != stat_buf.st_size)
4614 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4615 max_file_offset,
4616 stat_buf.st_size);
4617
4618
4619 /* If the first original file descriptor is a dummy which the assembler
4620 put out, but there are no symbols in it, skip it now. */
4621 if (orig_sym_hdr.ifdMax > 1
4622 && orig_files->csym == 2
4623 && orig_files->caux == 0)
4624 {
4625 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4626 char *suffix = local_rindex (filename, '.');
4627
4628 if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4629 delete_ifd = 1;
4630 }
4631
4632
4633 /* Create array to map original file numbers to the new file numbers
4634 (in case there are duplicate filenames, we collapse them into one
4635 file section, the MIPS assembler may or may not collapse them). */
4636
4637 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4638
4639 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4640 {
4641 register FDR *fd_ptr = ORIG_FILES (fd);
4642 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4643
4644 /* file support itself. */
4645 add_file (filename, filename + strlen (filename));
4646 remap_file_number[fd] = cur_file_ptr->file_index;
4647 }
4648
4649 if (delete_ifd > 0) /* just in case */
4650 remap_file_number[0] = remap_file_number[1];
4651
4652
4653 /* Loop, adding each of the external symbols. These must be in
4654 order or otherwise we would have to change the relocation
4655 entries. We don't just call add_bytes, because we need to have
4656 the names put into the external hash table. We set the type to
4657 'void' for now, and parse_def will fill in the correct type if it
4658 is in the symbol table. We must add the external symbols before
4659 the locals, since the locals do lookups against the externals. */
4660
4661 if (debug)
4662 fprintf (stderr, "\tehash\n");
4663
4664 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4665 {
4666 register EXTR *eptr = orig_ext_syms + es;
4667 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4668 register unsigned ifd = eptr->ifd;
4669
4670 (void) add_ext_symbol (ename,
4671 ename + strlen (ename),
4672 (st_t) eptr->asym.st,
4673 (sc_t) eptr->asym.sc,
4674 eptr->asym.value,
4675 (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4676 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4677 }
4678
4679
4680 /* For each of the files in the object file, copy the symbols, and such
4681 into the varrays for the new object file. */
4682
4683 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4684 {
4685 register FDR *fd_ptr = ORIG_FILES (fd);
4686 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4687 register SYMR *sym_start;
4688 register SYMR *sym;
4689 register SYMR *sym_end_p1;
4690 register PDR *proc_start;
4691 register PDR *proc;
4692 register PDR *proc_end_p1;
4693
4694 /* file support itself. */
4695 add_file (filename, filename + strlen (filename));
4696 cur_file_ptr->orig_fdr = fd_ptr;
4697
4698 /* Copy stuff that's just passed through (such as line #'s) */
4699 cur_file_ptr->fdr.adr = fd_ptr->adr;
4700 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4701 cur_file_ptr->fdr.cline = fd_ptr->cline;
4702 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4703 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4704 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4705 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4706 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4707 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4708 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4709
4710 if (debug)
4711 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4712
4713 /* For each of the static and global symbols defined, add them
4714 to the hash table of original symbols, so we can look up
4715 their values. */
4716
4717 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4718 sym_end_p1 = sym_start + fd_ptr->csym;
4719 for (sym = sym_start; sym < sym_end_p1; sym++)
4720 {
4721 switch ((st_t) sym->st)
4722 {
4723 default:
4724 break;
4725
4726 case st_Global:
4727 case st_Static:
4728 case st_Label:
4729 case st_Proc:
4730 case st_StaticProc:
4731 {
4732 auto symint_t hash_index;
4733 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4734 register Size_t len = strlen (str);
4735 register shash_t *shash_ptr = hash_string (str,
4736 (Ptrdiff_t)len,
4737 &orig_str_hash[0],
4738 &hash_index);
4739
4740 if (shash_ptr != (shash_t *)0)
4741 error ("internal error, %s is already in original symbol table", str);
4742
4743 else
4744 {
4745 shash_ptr = allocate_shash ();
4746 shash_ptr->next = orig_str_hash[hash_index];
4747 orig_str_hash[hash_index] = shash_ptr;
4748
4749 shash_ptr->len = len;
4750 shash_ptr->indx = indexNil;
4751 shash_ptr->string = str;
4752 shash_ptr->sym_ptr = sym;
4753 }
4754 }
4755 break;
4756
4757 case st_End:
4758 if ((sc_t) sym->sc == sc_Text)
4759 {
4760 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4761
4762 if (*str != '\0')
4763 {
4764 register Size_t len = strlen (str);
4765 register shash_t *shash_ptr = hash_string (str,
4766 (Ptrdiff_t)len,
4767 &orig_str_hash[0],
4768 (symint_t *)0);
4769
4770 if (shash_ptr != (shash_t *)0)
4771 shash_ptr->end_ptr = sym;
4772 }
4773 }
4774 break;
4775
4776 }
4777 }
4778
4779 if (debug)
4780 {
4781 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4782 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4783 }
4784
4785 /* Go through each of the procedures in this file, and add the
4786 procedure pointer to the hash entry for the given name. */
4787
4788 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4789 proc_end_p1 = proc_start + fd_ptr->cpd;
4790 for (proc = proc_start; proc < proc_end_p1; proc++)
4791 {
4792 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4793 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4794 register Size_t len = strlen (str);
4795 register shash_t *shash_ptr = hash_string (str,
4796 (Ptrdiff_t)len,
4797 &orig_str_hash[0],
4798 (symint_t *)0);
4799
4800 if (shash_ptr == (shash_t *)0)
4801 error ("internal error, function %s is not in original symbol table", str);
4802
4803 else
4804 shash_ptr->proc_ptr = proc;
4805 }
4806
4807 if (debug)
4808 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4809
4810 }
4811 cur_file_ptr = first_file;
4812
4813
4814 /* Copy all of the object file up to the symbol table. Originally
4815 we were going to use ftruncate, but that doesn't seem to work
4816 on Ultrix 3.1.... */
4817
4818 if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4819 pfatal_with_name (obj_in_name);
4820
4821 if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4822 pfatal_with_name (object_name);
4823
4824 for (remaining = orig_file_header.f_symptr;
4825 remaining > 0;
4826 remaining -= num_write)
4827 {
4828 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4829 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4830 if (sys_read <= 0)
4831 pfatal_with_name (obj_in_name);
4832
4833 else if (sys_read != num_write)
4834 fatal ("Wanted to read %d bytes from %s, system returned %d",
4835 num_write,
4836 obj_in_name,
4837 sys_read);
4838
4839 sys_write = fwrite (buffer, 1, num_write, object_stream);
4840 if (sys_write <= 0)
4841 pfatal_with_name (object_name);
4842
4843 else if (sys_write != num_write)
4844 fatal ("Wrote %d bytes to %s, system returned %d",
4845 num_write,
4846 object_name,
4847 sys_write);
4848 }
4849 }
4850
4851 \f
4852 /* Ye olde main program. */
4853
4854 int
4855 main (argc, argv)
4856 int argc;
4857 char *argv[];
4858 {
4859 int iflag = 0;
4860 char *p = local_rindex (argv[0], '/');
4861 char *num_end;
4862 int option;
4863 int i;
4864
4865 progname = (p != 0) ? p+1 : argv[0];
4866
4867 (void) signal (SIGSEGV, catch_signal);
4868 (void) signal (SIGBUS, catch_signal);
4869 (void) signal (SIGABRT, catch_signal);
4870
4871 #if !defined(__SABER__) && !defined(lint)
4872 if (sizeof (efdr_t) > PAGE_USIZE)
4873 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4874 sizeof (efdr_t),
4875 PAGE_USIZE);
4876
4877 if (sizeof (page_t) != PAGE_USIZE)
4878 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4879 sizeof (page_t),
4880 PAGE_USIZE);
4881
4882 #endif
4883
4884 alloc_counts[ alloc_type_none ].alloc_name = "none";
4885 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4886 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4887 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4888 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4889 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4890 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4891 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4892 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4893
4894 int_type_info = type_info_init;
4895 int_type_info.basic_type = bt_Int;
4896
4897 void_type_info = type_info_init;
4898 void_type_info.basic_type = bt_Void;
4899
4900 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4901 switch (option)
4902 {
4903 default:
4904 had_errors++;
4905 break;
4906
4907 case 'd':
4908 debug = strtol (optarg, &num_end, 0);
4909 if ((unsigned)debug > 4 || num_end == optarg)
4910 had_errors++;
4911
4912 break;
4913
4914 case 'I':
4915 if (rename_output || obj_in_name != (char *)0)
4916 had_errors++;
4917 else
4918 rename_output = 1;
4919
4920 /* fall through to 'i' case. */
4921
4922 case 'i':
4923 if (obj_in_name == (char *)0)
4924 {
4925 obj_in_name = optarg;
4926 iflag++;
4927 }
4928 else
4929 had_errors++;
4930 break;
4931
4932 case 'o':
4933 if (object_name == (char *)0)
4934 object_name = optarg;
4935 else
4936 had_errors++;
4937 break;
4938
4939 case 'v':
4940 version++;
4941 break;
4942 }
4943
4944 if (obj_in_name == (char *)0 && optind <= argc - 2)
4945 obj_in_name = argv[--argc];
4946
4947 if (object_name == (char *)0 && optind <= argc - 2)
4948 object_name = argv[--argc];
4949
4950 /* If there is an output name, but no input name use
4951 the same file for both, deleting the name between
4952 opening it for input and opening it for output. */
4953 if (obj_in_name == (char *)0 && object_name != (char *)0)
4954 {
4955 obj_in_name = object_name;
4956 delete_input = 1;
4957 }
4958
4959 if (object_name == (char *)0 || had_errors || optind != argc - 1)
4960 {
4961 fprintf (stderr, "Calling Sequence:\n");
4962 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4963 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4964 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4965 fprintf (stderr, "\n");
4966 fprintf (stderr, "Debug levels are:\n");
4967 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4968 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4969 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4970 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4971 return 1;
4972 }
4973
4974
4975 if (version)
4976 {
4977 fprintf (stderr, "mips-tfile version %s", version_string);
4978 #ifdef TARGET_VERSION
4979 TARGET_VERSION;
4980 #endif
4981 fputc ('\n', stderr);
4982 }
4983
4984 if (obj_in_name == (char *)0)
4985 obj_in_name = object_name;
4986
4987 if (rename_output && rename (object_name, obj_in_name) != 0)
4988 {
4989 char *buffer = (char *) allocate_multiple_pages (4);
4990 int len;
4991 int len2;
4992 int in_fd;
4993 int out_fd;
4994
4995 /* Rename failed, copy input file */
4996 in_fd = open (object_name, O_RDONLY, 0666);
4997 if (in_fd < 0)
4998 pfatal_with_name (object_name);
4999
5000 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
5001 if (out_fd < 0)
5002 pfatal_with_name (obj_in_name);
5003
5004 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5005 {
5006 len2 = write (out_fd, buffer, len);
5007 if (len2 < 0)
5008 pfatal_with_name (object_name);
5009
5010 if (len != len2)
5011 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5012 }
5013
5014 free_multiple_pages ((page_t *)buffer, 4);
5015
5016 if (len < 0)
5017 pfatal_with_name (object_name);
5018
5019 if (close (in_fd) < 0)
5020 pfatal_with_name (object_name);
5021
5022 if (close (out_fd) < 0)
5023 pfatal_with_name (obj_in_name);
5024 }
5025
5026 /* Must open input before output, since the output may be the same file, and
5027 we need to get the input handle before truncating it. */
5028 obj_in_stream = fopen (obj_in_name, "r");
5029 if (obj_in_stream == (FILE *)0)
5030 pfatal_with_name (obj_in_name);
5031
5032 if (delete_input && unlink (obj_in_name) != 0)
5033 pfatal_with_name (obj_in_name);
5034
5035 object_stream = fopen (object_name, "w");
5036 if (object_stream == (FILE *)0)
5037 pfatal_with_name (object_name);
5038
5039 if (strcmp (argv[optind], "-") != 0)
5040 {
5041 input_name = argv[optind];
5042 if (freopen (argv[optind], "r", stdin) != stdin)
5043 pfatal_with_name (argv[optind]);
5044 }
5045
5046 copy_object (); /* scan & copy object file */
5047 parse_input (); /* scan all of input */
5048
5049 update_headers (); /* write out tfile */
5050 write_object ();
5051
5052 if (debug)
5053 {
5054 fprintf (stderr, "\n\tAllocation summary:\n\n");
5055 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5056 if (alloc_counts[i].total_alloc)
5057 {
5058 fprintf (stderr,
5059 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5060 alloc_counts[i].alloc_name,
5061 alloc_counts[i].total_alloc,
5062 alloc_counts[i].total_free,
5063 alloc_counts[i].total_pages);
5064 }
5065 }
5066
5067 return (had_errors) ? 1 : 0;
5068 }
5069
5070 \f
5071 /* Catch a signal and exit without dumping core. */
5072
5073 STATIC void
5074 catch_signal (signum)
5075 int signum;
5076 {
5077 (void) signal (signum, SIG_DFL); /* just in case... */
5078 #ifdef NO_SYS_SIGLIST
5079 fatal ("caught signal");
5080 #else
5081 fatal (sys_siglist[signum]);
5082 #endif
5083 }
5084
5085 /* Print a fatal error message. NAME is the text.
5086 Also include a system error message based on `errno'. */
5087
5088 void
5089 pfatal_with_name (msg)
5090 char *msg;
5091 {
5092 int save_errno = errno; /* just in case.... */
5093 if (line_number > 0)
5094 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5095 else
5096 fprintf (stderr, "%s:", progname);
5097
5098 errno = save_errno;
5099 if (errno == 0)
5100 fprintf (stderr, "[errno = 0] %s\n", msg);
5101 else
5102 perror (msg);
5103
5104 exit (1);
5105 }
5106
5107 \f
5108 /* Procedure to abort with an out of bounds error message. It has
5109 type int, so it can be used with an ?: expression within the
5110 ORIG_xxx macros, but the function never returns. */
5111
5112 static int
5113 out_of_bounds (indx, max, str, prog_line)
5114 symint_t indx; /* index that is out of bounds */
5115 symint_t max; /* maximum index */
5116 const char *str; /* string to print out */
5117 int prog_line; /* line number within mips-tfile.c */
5118 {
5119 if (indx < max) /* just in case */
5120 return 0;
5121
5122 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5123 progname, input_name, line_number, indx, str, max, prog_line);
5124
5125 exit (1);
5126 return 0; /* turn off warning messages */
5127 }
5128
5129 \f
5130 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5131 like sbrk's behind it's back (or sbrk isn't available). If we use
5132 sbrk, we assume it gives us zeroed pages. */
5133
5134 #ifndef MALLOC_CHECK
5135 #ifdef USE_MALLOC
5136
5137 STATIC page_t *
5138 allocate_cluster (npages)
5139 Size_t npages;
5140 {
5141 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5142
5143 if (value == 0)
5144 fatal ("Virtual memory exhausted.");
5145
5146 if (debug > 3)
5147 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5148
5149 return value;
5150 }
5151
5152 #else /* USE_MALLOC */
5153
5154 STATIC page_t *
5155 allocate_cluster (npages)
5156 Size_t npages;
5157 {
5158 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5159 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5160
5161 if (offset != 0) /* align to a page boundary */
5162 {
5163 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5164 pfatal_with_name ("allocate_cluster");
5165
5166 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5167 }
5168
5169 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5170 pfatal_with_name ("allocate_cluster");
5171
5172 if (debug > 3)
5173 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5174
5175 return ptr;
5176 }
5177
5178 #endif /* USE_MALLOC */
5179
5180
5181 static page_t *cluster_ptr = NULL;
5182 static unsigned pages_left = 0;
5183
5184 #endif /* MALLOC_CHECK */
5185
5186
5187 /* Allocate some pages (which is initialized to 0). */
5188
5189 STATIC page_t *
5190 allocate_multiple_pages (npages)
5191 Size_t npages;
5192 {
5193 #ifndef MALLOC_CHECK
5194 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5195 {
5196 pages_left = MAX_CLUSTER_PAGES;
5197 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5198 }
5199
5200 if (npages <= pages_left)
5201 {
5202 page_t *ptr = cluster_ptr;
5203 cluster_ptr += npages;
5204 pages_left -= npages;
5205 return ptr;
5206 }
5207
5208 return allocate_cluster (npages);
5209
5210 #else /* MALLOC_CHECK */
5211 return (page_t *) xcalloc (npages, PAGE_SIZE);
5212
5213 #endif /* MALLOC_CHECK */
5214 }
5215
5216
5217 /* Release some pages. */
5218
5219 STATIC void
5220 free_multiple_pages (page_ptr, npages)
5221 page_t *page_ptr;
5222 Size_t npages;
5223 {
5224 #ifndef MALLOC_CHECK
5225 if (pages_left == 0)
5226 {
5227 cluster_ptr = page_ptr;
5228 pages_left = npages;
5229 }
5230
5231 else if ((page_ptr + npages) == cluster_ptr)
5232 {
5233 cluster_ptr -= npages;
5234 pages_left += npages;
5235 }
5236
5237 /* otherwise the page is not freed. If more than call is
5238 done, we probably should worry about it, but at present,
5239 the free pages is done right after an allocate. */
5240
5241 #else /* MALLOC_CHECK */
5242 free ((char *) page_ptr);
5243
5244 #endif /* MALLOC_CHECK */
5245 }
5246
5247
5248 /* Allocate one page (which is initialized to 0). */
5249
5250 STATIC page_t *
5251 allocate_page __proto((void))
5252 {
5253 #ifndef MALLOC_CHECK
5254 if (pages_left == 0)
5255 {
5256 pages_left = MAX_CLUSTER_PAGES;
5257 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5258 }
5259
5260 pages_left--;
5261 return cluster_ptr++;
5262
5263 #else /* MALLOC_CHECK */
5264 return (page_t *) xcalloc (1, PAGE_SIZE);
5265
5266 #endif /* MALLOC_CHECK */
5267 }
5268
5269 \f
5270 /* Allocate scoping information. */
5271
5272 STATIC scope_t *
5273 allocate_scope __proto((void))
5274 {
5275 register scope_t *ptr;
5276 static scope_t initial_scope;
5277
5278 #ifndef MALLOC_CHECK
5279 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5280 if (ptr != (scope_t *)0)
5281 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5282
5283 else
5284 {
5285 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5286 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5287
5288 if (unallocated == 0)
5289 {
5290 unallocated = PAGE_SIZE / sizeof (scope_t);
5291 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5292 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5293 }
5294
5295 ptr = &cur_page->scope[ --unallocated ];
5296 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5297 }
5298
5299 #else
5300 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5301
5302 #endif
5303
5304 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5305 *ptr = initial_scope;
5306 return ptr;
5307 }
5308
5309 /* Free scoping information. */
5310
5311 STATIC void
5312 free_scope (ptr)
5313 scope_t *ptr;
5314 {
5315 alloc_counts[ (int)alloc_type_scope ].total_free++;
5316
5317 #ifndef MALLOC_CHECK
5318 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5319 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5320
5321 #else
5322 xfree ((PTR_T) ptr);
5323 #endif
5324
5325 }
5326
5327 \f
5328 /* Allocate links for pages in a virtual array. */
5329
5330 STATIC vlinks_t *
5331 allocate_vlinks __proto((void))
5332 {
5333 register vlinks_t *ptr;
5334 static vlinks_t initial_vlinks;
5335
5336 #ifndef MALLOC_CHECK
5337 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5338 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5339
5340 if (unallocated == 0)
5341 {
5342 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5343 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5344 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5345 }
5346
5347 ptr = &cur_page->vlinks[ --unallocated ];
5348 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5349
5350 #else
5351 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5352
5353 #endif
5354
5355 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5356 *ptr = initial_vlinks;
5357 return ptr;
5358 }
5359
5360 \f
5361 /* Allocate string hash buckets. */
5362
5363 STATIC shash_t *
5364 allocate_shash __proto((void))
5365 {
5366 register shash_t *ptr;
5367 static shash_t initial_shash;
5368
5369 #ifndef MALLOC_CHECK
5370 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5371 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5372
5373 if (unallocated == 0)
5374 {
5375 unallocated = PAGE_SIZE / sizeof (shash_t);
5376 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5377 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5378 }
5379
5380 ptr = &cur_page->shash[ --unallocated ];
5381 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5382
5383 #else
5384 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5385
5386 #endif
5387
5388 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5389 *ptr = initial_shash;
5390 return ptr;
5391 }
5392
5393 \f
5394 /* Allocate type hash buckets. */
5395
5396 STATIC thash_t *
5397 allocate_thash __proto((void))
5398 {
5399 register thash_t *ptr;
5400 static thash_t initial_thash;
5401
5402 #ifndef MALLOC_CHECK
5403 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5404 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5405
5406 if (unallocated == 0)
5407 {
5408 unallocated = PAGE_SIZE / sizeof (thash_t);
5409 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5410 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5411 }
5412
5413 ptr = &cur_page->thash[ --unallocated ];
5414 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5415
5416 #else
5417 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5418
5419 #endif
5420
5421 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5422 *ptr = initial_thash;
5423 return ptr;
5424 }
5425
5426 \f
5427 /* Allocate structure, union, or enum tag information. */
5428
5429 STATIC tag_t *
5430 allocate_tag __proto((void))
5431 {
5432 register tag_t *ptr;
5433 static tag_t initial_tag;
5434
5435 #ifndef MALLOC_CHECK
5436 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5437 if (ptr != (tag_t *)0)
5438 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5439
5440 else
5441 {
5442 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5443 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5444
5445 if (unallocated == 0)
5446 {
5447 unallocated = PAGE_SIZE / sizeof (tag_t);
5448 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5449 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5450 }
5451
5452 ptr = &cur_page->tag[ --unallocated ];
5453 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5454 }
5455
5456 #else
5457 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5458
5459 #endif
5460
5461 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5462 *ptr = initial_tag;
5463 return ptr;
5464 }
5465
5466 /* Free scoping information. */
5467
5468 STATIC void
5469 free_tag (ptr)
5470 tag_t *ptr;
5471 {
5472 alloc_counts[ (int)alloc_type_tag ].total_free++;
5473
5474 #ifndef MALLOC_CHECK
5475 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5476 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5477
5478 #else
5479 xfree ((PTR_T) ptr);
5480 #endif
5481
5482 }
5483
5484 \f
5485 /* Allocate forward reference to a yet unknown tag. */
5486
5487 STATIC forward_t *
5488 allocate_forward __proto((void))
5489 {
5490 register forward_t *ptr;
5491 static forward_t initial_forward;
5492
5493 #ifndef MALLOC_CHECK
5494 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5495 if (ptr != (forward_t *)0)
5496 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5497
5498 else
5499 {
5500 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5501 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5502
5503 if (unallocated == 0)
5504 {
5505 unallocated = PAGE_SIZE / sizeof (forward_t);
5506 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5507 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5508 }
5509
5510 ptr = &cur_page->forward[ --unallocated ];
5511 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5512 }
5513
5514 #else
5515 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5516
5517 #endif
5518
5519 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5520 *ptr = initial_forward;
5521 return ptr;
5522 }
5523
5524 /* Free scoping information. */
5525
5526 STATIC void
5527 free_forward (ptr)
5528 forward_t *ptr;
5529 {
5530 alloc_counts[ (int)alloc_type_forward ].total_free++;
5531
5532 #ifndef MALLOC_CHECK
5533 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5534 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5535
5536 #else
5537 xfree ((PTR_T) ptr);
5538 #endif
5539
5540 }
5541
5542 \f
5543 /* Allocate head of type hash list. */
5544
5545 STATIC thead_t *
5546 allocate_thead __proto((void))
5547 {
5548 register thead_t *ptr;
5549 static thead_t initial_thead;
5550
5551 #ifndef MALLOC_CHECK
5552 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5553 if (ptr != (thead_t *)0)
5554 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5555
5556 else
5557 {
5558 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5559 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5560
5561 if (unallocated == 0)
5562 {
5563 unallocated = PAGE_SIZE / sizeof (thead_t);
5564 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5565 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5566 }
5567
5568 ptr = &cur_page->thead[ --unallocated ];
5569 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5570 }
5571
5572 #else
5573 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5574
5575 #endif
5576
5577 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5578 *ptr = initial_thead;
5579 return ptr;
5580 }
5581
5582 /* Free scoping information. */
5583
5584 STATIC void
5585 free_thead (ptr)
5586 thead_t *ptr;
5587 {
5588 alloc_counts[ (int)alloc_type_thead ].total_free++;
5589
5590 #ifndef MALLOC_CHECK
5591 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5592 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5593
5594 #else
5595 xfree ((PTR_T) ptr);
5596 #endif
5597
5598 }
5599
5600 #endif /* MIPS_DEBUGGING_INFO */
5601
5602 \f
5603 #ifdef HAVE_VPRINTF
5604
5605 /* Output an error message and exit */
5606
5607 /*VARARGS*/
5608 void
5609 fatal VPROTO((char *format, ...))
5610 {
5611 #ifndef __STDC__
5612 char *format;
5613 #endif
5614 va_list ap;
5615
5616 VA_START (ap, format);
5617
5618 #ifndef __STDC__
5619 format = va_arg (ap, char*);
5620 #endif
5621
5622 if (line_number > 0)
5623 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5624 else
5625 fprintf (stderr, "%s:", progname);
5626
5627 vfprintf (stderr, format, ap);
5628 va_end (ap);
5629 fprintf (stderr, "\n");
5630 if (line_number > 0)
5631 fprintf (stderr, "line:\t%s\n", cur_line_start);
5632
5633 saber_stop ();
5634 exit (1);
5635 }
5636
5637 /*VARARGS*/
5638 void
5639 error VPROTO((char *format, ...))
5640 {
5641 #ifndef __STDC__
5642 char *format;
5643 #endif
5644 va_list ap;
5645
5646 VA_START (ap, format);
5647
5648 #ifndef __STDC__
5649 format = va_arg (ap, char*);
5650 #endif
5651
5652 if (line_number > 0)
5653 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5654 else
5655 fprintf (stderr, "%s:", progname);
5656
5657 vfprintf (stderr, format, ap);
5658 fprintf (stderr, "\n");
5659 if (line_number > 0)
5660 fprintf (stderr, "line:\t%s\n", cur_line_start);
5661
5662 had_errors++;
5663 va_end (ap);
5664
5665 saber_stop ();
5666 }
5667
5668 #else /* not HAVE_VPRINTF */
5669
5670 void
5671 fatal (msg, arg1, arg2)
5672 char *msg, *arg1, *arg2;
5673 {
5674 error (msg, arg1, arg2);
5675 exit (1);
5676 }
5677
5678 void
5679 error (msg, arg1, arg2)
5680 char *msg, *arg1, *arg2;
5681 {
5682 fprintf (stderr, "%s: ", progname);
5683 fprintf (stderr, msg, arg1, arg2);
5684 fprintf (stderr, "\n");
5685 }
5686
5687 #endif /* not HAVE_VPRINTF */
5688
5689 /* More 'friendly' abort that prints the line and file.
5690 config.h can #define abort fancy_abort if you like that sort of thing. */
5691
5692 void
5693 fancy_abort ()
5694 {
5695 fatal ("Internal abort.");
5696 }
5697 \f
5698
5699 /* When `malloc.c' is compiled with `rcheck' defined,
5700 it calls this function to report clobberage. */
5701
5702 void
5703 botch (s)
5704 const char *s;
5705 {
5706 fatal (s);
5707 }
5708
5709 /* Same as `malloc' but report error if no memory available. */
5710
5711 PTR_T
5712 xmalloc (size)
5713 Size_t size;
5714 {
5715 register PTR_T value = malloc (size);
5716 if (value == 0)
5717 fatal ("Virtual memory exhausted.");
5718
5719 if (debug > 3)
5720 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5721
5722 return value;
5723 }
5724
5725 /* Same as `calloc' but report error if no memory available. */
5726
5727 PTR_T
5728 xcalloc (size1, size2)
5729 Size_t size1, size2;
5730 {
5731 register PTR_T value = calloc (size1, size2);
5732 if (value == 0)
5733 fatal ("Virtual memory exhausted.");
5734
5735 if (debug > 3)
5736 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5737 value, size1, size2, size1+size2);
5738
5739 return value;
5740 }
5741
5742 /* Same as `realloc' but report error if no memory available. */
5743
5744 PTR_T
5745 xrealloc (ptr, size)
5746 PTR_T ptr;
5747 Size_t size;
5748 {
5749 register PTR_T result = realloc (ptr, size);
5750 if (!result)
5751 fatal ("Virtual memory exhausted.");
5752
5753 if (debug > 3)
5754 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5755 result, size, ptr);
5756
5757 return result;
5758 }
5759
5760 void
5761 xfree (ptr)
5762 PTR_T ptr;
5763 {
5764 if (debug > 3)
5765 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5766
5767 free (ptr);
5768 }
5769
5770 \f
5771 /* Define our own index/rindex, since the local and global symbol
5772 structures as defined by MIPS has an 'index' field. */
5773
5774 STATIC char *
5775 local_index (str, sentinel)
5776 const char *str;
5777 int sentinel;
5778 {
5779 int ch;
5780
5781 for ( ; (ch = *str) != sentinel; str++)
5782 {
5783 if (ch == '\0')
5784 return (char *)0;
5785 }
5786
5787 return (char *)str;
5788 }
5789
5790 STATIC char *
5791 local_rindex (str, sentinel)
5792 const char *str;
5793 int sentinel;
5794 {
5795 int ch;
5796 const char *ret = (const char *)0;
5797
5798 for ( ; (ch = *str) != '\0'; str++)
5799 {
5800 if (ch == sentinel)
5801 ret = str;
5802 }
5803
5804 return (char *)ret;
5805 }