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1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997 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, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #ifdef __STDC__
604 #include <stdarg.h>
605 #else
606 #include <varargs.h>
607 #endif
608 #include <stdio.h>
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 #ifndef __LINE__
615 #define __LINE__ 0
616 #endif
617
618 #ifdef __STDC__
619 typedef void *PTR_T;
620 typedef const void *CPTR_T;
621 #define __proto(x) x
622 #ifndef VPROTO
623 #define PVPROTO(ARGS) ARGS
624 #define VPROTO(ARGS) ARGS
625 #define VA_START(va_list,var) va_start(va_list,var)
626 #endif
627 #else
628
629 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
630 typedef void *PTR_T;
631 typedef void *CPTR_T;
632
633 #else
634 typedef char *PTR_T; /* Ultrix 3.1 */
635 typedef char *CPTR_T;
636 #endif
637
638 #define __proto(x) ()
639 #define const
640 #ifndef VPROTO
641 #define PVPROTO(ARGS) ()
642 #define VPROTO(ARGS) (va_alist) va_dcl
643 #define VA_START(va_list,var) va_start(va_list)
644 #endif
645 #endif
646
647 /* Do to size_t being defined in sys/types.h and different
648 in stddef.h, we have to do this by hand..... Note, these
649 types are correct for MIPS based systems, and may not be
650 correct for other systems. Ultrix 4.0 and Silicon Graphics
651 have this fixed, but since the following is correct, and
652 the fact that including stddef.h gets you GCC's version
653 instead of the standard one it's not worth it to fix it. */
654
655 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
656 #define Size_t long unsigned int
657 #else
658 #define Size_t unsigned int
659 #endif
660 #define Ptrdiff_t long
661
662 /* The following might be called from obstack or malloc,
663 so they can't be static. */
664
665 extern void pfatal_with_name
666 __proto((char *));
667 extern void fancy_abort __proto((void));
668 void botch __proto((const char *));
669 extern PTR_T xmalloc __proto((Size_t));
670 extern PTR_T xcalloc __proto((Size_t, Size_t));
671 extern PTR_T xrealloc __proto((PTR_T, Size_t));
672 extern void xfree __proto((PTR_T));
673
674 #ifdef HAVE_VPRINTF
675 extern void fatal PVPROTO((const char *format, ...));
676 extern void error PVPROTO((const char *format, ...));
677 #else
678 /* We must not provide any prototype here, even if ANSI C. */
679 extern void fatal __proto(());
680 extern void error __proto(());
681 #endif
682
683 \f
684 #ifndef MIPS_DEBUGGING_INFO
685
686 static int line_number;
687 static int cur_line_start;
688 static int debug;
689 static int had_errors;
690 static char *progname;
691 static char *input_name;
692
693 int
694 main ()
695 {
696 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
697 exit (1);
698 }
699
700 #else /* MIPS_DEBUGGING defined */
701 \f
702 /* The local and global symbols have a field index, so undo any defines
703 of index -> strchr and rindex -> strrchr. */
704
705 #undef rindex
706 #undef index
707
708 #include <sys/types.h>
709 #include <string.h>
710 #include <ctype.h>
711 #include <fcntl.h>
712 #include <errno.h>
713 #include <signal.h>
714 #include <sys/stat.h>
715
716 #ifndef CROSS_COMPILE
717 #include <a.out.h>
718 #else
719 #include "mips/a.out.h"
720 #endif /* CROSS_COMPILE */
721
722 #if defined (USG) || defined (NO_STAB_H)
723 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
724 #else
725 #include <stab.h> /* On BSD, use the system's stab.h. */
726 #endif /* not USG */
727
728 #ifdef __GNU_STAB__
729 #define STAB_CODE_TYPE enum __stab_debug_code
730 #else
731 #define STAB_CODE_TYPE int
732 #endif
733
734 #ifdef _OSF_SOURCE
735 #define HAS_STDLIB_H
736 #define HAS_UNISTD_H
737 #endif
738
739 #ifdef HAS_STDLIB_H
740 #include <stdlib.h>
741 #endif
742
743 #ifdef HAS_UNISTD_H
744 #include <unistd.h>
745 #endif
746
747 #ifndef errno
748 extern int errno; /* MIPS errno.h doesn't declare this */
749 #endif
750
751 #ifndef MALLOC_CHECK
752 #ifdef __SABER__
753 #define MALLOC_CHECK
754 #endif
755 #endif
756
757 #define IS_ASM_IDENT(ch) \
758 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
759
760 \f
761 /* Redefinition of of storage classes as an enumeration for better
762 debugging. */
763
764 typedef enum sc {
765 sc_Nil = scNil, /* no storage class */
766 sc_Text = scText, /* text symbol */
767 sc_Data = scData, /* initialized data symbol */
768 sc_Bss = scBss, /* un-initialized data symbol */
769 sc_Register = scRegister, /* value of symbol is register number */
770 sc_Abs = scAbs, /* value of symbol is absolute */
771 sc_Undefined = scUndefined, /* who knows? */
772 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
773 sc_Bits = scBits, /* this is a bit field */
774 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
775 sc_RegImage = scRegImage, /* register value saved on stack */
776 sc_Info = scInfo, /* symbol contains debugger information */
777 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
778 sc_SData = scSData, /* load time only small data */
779 sc_SBss = scSBss, /* load time only small common */
780 sc_RData = scRData, /* load time only read only data */
781 sc_Var = scVar, /* Var parameter (fortran,pascal) */
782 sc_Common = scCommon, /* common variable */
783 sc_SCommon = scSCommon, /* small common */
784 sc_VarRegister = scVarRegister, /* Var parameter in a register */
785 sc_Variant = scVariant, /* Variant record */
786 sc_SUndefined = scSUndefined, /* small undefined(external) data */
787 sc_Init = scInit, /* .init section symbol */
788 sc_Max = scMax /* Max storage class+1 */
789 } sc_t;
790
791 /* Redefinition of symbol type. */
792
793 typedef enum st {
794 st_Nil = stNil, /* Nuthin' special */
795 st_Global = stGlobal, /* external symbol */
796 st_Static = stStatic, /* static */
797 st_Param = stParam, /* procedure argument */
798 st_Local = stLocal, /* local variable */
799 st_Label = stLabel, /* label */
800 st_Proc = stProc, /* " " Procedure */
801 st_Block = stBlock, /* beginning of block */
802 st_End = stEnd, /* end (of anything) */
803 st_Member = stMember, /* member (of anything - struct/union/enum */
804 st_Typedef = stTypedef, /* type definition */
805 st_File = stFile, /* file name */
806 st_RegReloc = stRegReloc, /* register relocation */
807 st_Forward = stForward, /* forwarding address */
808 st_StaticProc = stStaticProc, /* load time only static procs */
809 st_Constant = stConstant, /* const */
810 st_Str = stStr, /* string */
811 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
812 st_Expr = stExpr, /* 2+2 vs. 4 */
813 st_Type = stType, /* post-coercion SER */
814 st_Max = stMax /* max type+1 */
815 } st_t;
816
817 /* Redefinition of type qualifiers. */
818
819 typedef enum tq {
820 tq_Nil = tqNil, /* bt is what you see */
821 tq_Ptr = tqPtr, /* pointer */
822 tq_Proc = tqProc, /* procedure */
823 tq_Array = tqArray, /* duh */
824 tq_Far = tqFar, /* longer addressing - 8086/8 land */
825 tq_Vol = tqVol, /* volatile */
826 tq_Max = tqMax /* Max type qualifier+1 */
827 } tq_t;
828
829 /* Redefinition of basic types. */
830
831 typedef enum bt {
832 bt_Nil = btNil, /* undefined */
833 bt_Adr = btAdr, /* address - integer same size as pointer */
834 bt_Char = btChar, /* character */
835 bt_UChar = btUChar, /* unsigned character */
836 bt_Short = btShort, /* short */
837 bt_UShort = btUShort, /* unsigned short */
838 bt_Int = btInt, /* int */
839 bt_UInt = btUInt, /* unsigned int */
840 bt_Long = btLong, /* long */
841 bt_ULong = btULong, /* unsigned long */
842 bt_Float = btFloat, /* float (real) */
843 bt_Double = btDouble, /* Double (real) */
844 bt_Struct = btStruct, /* Structure (Record) */
845 bt_Union = btUnion, /* Union (variant) */
846 bt_Enum = btEnum, /* Enumerated */
847 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
848 bt_Range = btRange, /* subrange of int */
849 bt_Set = btSet, /* pascal sets */
850 bt_Complex = btComplex, /* fortran complex */
851 bt_DComplex = btDComplex, /* fortran double complex */
852 bt_Indirect = btIndirect, /* forward or unnamed typedef */
853 bt_FixedDec = btFixedDec, /* Fixed Decimal */
854 bt_FloatDec = btFloatDec, /* Float Decimal */
855 bt_String = btString, /* Varying Length Character String */
856 bt_Bit = btBit, /* Aligned Bit String */
857 bt_Picture = btPicture, /* Picture */
858
859 #ifdef btVoid
860 bt_Void = btVoid, /* Void */
861 #else
862 #define bt_Void bt_Nil
863 #endif
864
865 bt_Max = btMax /* Max basic type+1 */
866 } bt_t;
867
868 \f
869
870 /* Basic COFF storage classes. */
871 enum coff_storage {
872 C_EFCN = -1,
873 C_NULL = 0,
874 C_AUTO = 1,
875 C_EXT = 2,
876 C_STAT = 3,
877 C_REG = 4,
878 C_EXTDEF = 5,
879 C_LABEL = 6,
880 C_ULABEL = 7,
881 C_MOS = 8,
882 C_ARG = 9,
883 C_STRTAG = 10,
884 C_MOU = 11,
885 C_UNTAG = 12,
886 C_TPDEF = 13,
887 C_USTATIC = 14,
888 C_ENTAG = 15,
889 C_MOE = 16,
890 C_REGPARM = 17,
891 C_FIELD = 18,
892 C_BLOCK = 100,
893 C_FCN = 101,
894 C_EOS = 102,
895 C_FILE = 103,
896 C_LINE = 104,
897 C_ALIAS = 105,
898 C_HIDDEN = 106,
899 C_MAX = 107
900 } coff_storage_t;
901
902 /* Regular COFF fundamental type. */
903 typedef enum coff_type {
904 T_NULL = 0,
905 T_ARG = 1,
906 T_CHAR = 2,
907 T_SHORT = 3,
908 T_INT = 4,
909 T_LONG = 5,
910 T_FLOAT = 6,
911 T_DOUBLE = 7,
912 T_STRUCT = 8,
913 T_UNION = 9,
914 T_ENUM = 10,
915 T_MOE = 11,
916 T_UCHAR = 12,
917 T_USHORT = 13,
918 T_UINT = 14,
919 T_ULONG = 15,
920 T_MAX = 16
921 } coff_type_t;
922
923 /* Regular COFF derived types. */
924 typedef enum coff_dt {
925 DT_NON = 0,
926 DT_PTR = 1,
927 DT_FCN = 2,
928 DT_ARY = 3,
929 DT_MAX = 4
930 } coff_dt_t;
931
932 #define N_BTMASK 017 /* bitmask to isolate basic type */
933 #define N_TMASK 003 /* bitmask to isolate derived type */
934 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
935 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
936 #define N_TQ 6 /* # of type qualifiers */
937
938 /* States for whether to hash type or not. */
939 typedef enum hash_state {
940 hash_no = 0, /* don't hash type */
941 hash_yes = 1, /* ok to hash type, or use previous hash */
942 hash_record = 2 /* ok to record hash, but don't use prev. */
943 } hash_state_t;
944
945
946 /* Types of different sized allocation requests. */
947 enum alloc_type {
948 alloc_type_none, /* dummy value */
949 alloc_type_scope, /* nested scopes linked list */
950 alloc_type_vlinks, /* glue linking pages in varray */
951 alloc_type_shash, /* string hash element */
952 alloc_type_thash, /* type hash element */
953 alloc_type_tag, /* struct/union/tag element */
954 alloc_type_forward, /* element to hold unknown tag */
955 alloc_type_thead, /* head of type hash list */
956 alloc_type_varray, /* general varray allocation */
957 alloc_type_last /* last+1 element for array bounds */
958 };
959
960 \f
961 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
962 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
963
964
965 /* Structures to provide n-number of virtual arrays, each of which can
966 grow linearly, and which are written in the object file as sequential
967 pages. On systems with a BSD malloc that define USE_MALLOC, the
968 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
969 adds it's overhead, and rounds up to the next power of 2. Pages are
970 linked together via a linked list.
971
972 If PAGE_SIZE is > 4096, the string length in the shash_t structure
973 can't be represented (assuming there are strings > 4096 bytes). */
974
975 #ifndef PAGE_SIZE
976 #define PAGE_SIZE 4096 /* size of varray pages */
977 #endif
978
979 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
980
981
982 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
983 #ifndef USE_MALLOC /* in one memory request */
984 #define MAX_CLUSTER_PAGES 64
985 #else
986 #define MAX_CLUSTER_PAGES 63
987 #endif
988 #endif
989
990
991 /* Linked list connecting separate page allocations. */
992 typedef struct vlinks {
993 struct vlinks *prev; /* previous set of pages */
994 struct vlinks *next; /* next set of pages */
995 union page *datum; /* start of page */
996 unsigned long start_index; /* starting index # of page */
997 } vlinks_t;
998
999
1000 /* Virtual array header. */
1001 typedef struct varray {
1002 vlinks_t *first; /* first page link */
1003 vlinks_t *last; /* last page link */
1004 unsigned long num_allocated; /* # objects allocated */
1005 unsigned short object_size; /* size in bytes of each object */
1006 unsigned short objects_per_page; /* # objects that can fit on a page */
1007 unsigned short objects_last_page; /* # objects allocated on last page */
1008 } varray_t;
1009
1010 #ifndef MALLOC_CHECK
1011 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
1012 #else
1013 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
1014 #endif
1015
1016 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1017 (vlinks_t *) 0, /* first */ \
1018 (vlinks_t *) 0, /* last */ \
1019 0, /* num_allocated */ \
1020 sizeof (type), /* object_size */ \
1021 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1022 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1023 }
1024
1025 /* Master type for indexes within the symbol table. */
1026 typedef unsigned long symint_t;
1027
1028
1029 /* Linked list support for nested scopes (file, block, structure, etc.). */
1030 typedef struct scope {
1031 struct scope *prev; /* previous scope level */
1032 struct scope *free; /* free list pointer */
1033 SYMR *lsym; /* pointer to local symbol node */
1034 symint_t lnumber; /* lsym index */
1035 st_t type; /* type of the node */
1036 } scope_t;
1037
1038
1039 /* Forward reference list for tags referenced, but not yet defined. */
1040 typedef struct forward {
1041 struct forward *next; /* next forward reference */
1042 struct forward *free; /* free list pointer */
1043 AUXU *ifd_ptr; /* pointer to store file index */
1044 AUXU *index_ptr; /* pointer to store symbol index */
1045 AUXU *type_ptr; /* pointer to munge type info */
1046 } forward_t;
1047
1048
1049 /* Linked list support for tags. The first tag in the list is always
1050 the current tag for that block. */
1051 typedef struct tag {
1052 struct tag *free; /* free list pointer */
1053 struct shash *hash_ptr; /* pointer to the hash table head */
1054 struct tag *same_name; /* tag with same name in outer scope */
1055 struct tag *same_block; /* next tag defined in the same block. */
1056 struct forward *forward_ref; /* list of forward references */
1057 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1058 symint_t ifd; /* file # tag defined in */
1059 symint_t indx; /* index within file's local symbols */
1060 } tag_t;
1061
1062
1063 /* Head of a block's linked list of tags. */
1064 typedef struct thead {
1065 struct thead *prev; /* previous block */
1066 struct thead *free; /* free list pointer */
1067 struct tag *first_tag; /* first tag in block defined */
1068 } thead_t;
1069
1070
1071 /* Union containing pointers to each the small structures which are freed up. */
1072 typedef union small_free {
1073 scope_t *f_scope; /* scope structure */
1074 thead_t *f_thead; /* tag head structure */
1075 tag_t *f_tag; /* tag element structure */
1076 forward_t *f_forward; /* forward tag reference */
1077 } small_free_t;
1078
1079
1080 /* String hash table support. The size of the hash table must fit
1081 within a page. */
1082
1083 #ifndef SHASH_SIZE
1084 #define SHASH_SIZE 1009
1085 #endif
1086
1087 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1088
1089 typedef struct shash {
1090 struct shash *next; /* next hash value */
1091 char *string; /* string we are hashing */
1092 symint_t len; /* string length */
1093 symint_t indx; /* index within string table */
1094 EXTR *esym_ptr; /* global symbol pointer */
1095 SYMR *sym_ptr; /* local symbol pointer */
1096 SYMR *end_ptr; /* symbol pointer to end block */
1097 tag_t *tag_ptr; /* tag pointer */
1098 PDR *proc_ptr; /* procedure descriptor pointer */
1099 } shash_t;
1100
1101
1102 /* Type hash table support. The size of the hash table must fit
1103 within a page with the other extended file descriptor information.
1104 Because unique types which are hashed are fewer in number than
1105 strings, we use a smaller hash value. */
1106
1107 #ifndef THASH_SIZE
1108 #define THASH_SIZE 113
1109 #endif
1110
1111 typedef struct thash {
1112 struct thash *next; /* next hash value */
1113 AUXU type; /* type we are hashing */
1114 symint_t indx; /* index within string table */
1115 } thash_t;
1116
1117
1118 /* Extended file descriptor that contains all of the support necessary
1119 to add things to each file separately. */
1120 typedef struct efdr {
1121 FDR fdr; /* File header to be written out */
1122 FDR *orig_fdr; /* original file header */
1123 char *name; /* filename */
1124 int name_len; /* length of the filename */
1125 symint_t void_type; /* aux. pointer to 'void' type */
1126 symint_t int_type; /* aux. pointer to 'int' type */
1127 scope_t *cur_scope; /* current nested scopes */
1128 symint_t file_index; /* current file number */
1129 int nested_scopes; /* # nested scopes */
1130 varray_t strings; /* local strings */
1131 varray_t symbols; /* local symbols */
1132 varray_t procs; /* procedures */
1133 varray_t aux_syms; /* auxiliary symbols */
1134 struct efdr *next_file; /* next file descriptor */
1135 /* string/type hash tables */
1136 shash_t **shash_head; /* string hash table */
1137 thash_t *thash_head[THASH_SIZE];
1138 } efdr_t;
1139
1140 /* Pre-initialized extended file structure. */
1141 static efdr_t init_file =
1142 {
1143 { /* FDR structure */
1144 0, /* adr: memory address of beginning of file */
1145 0, /* rss: file name (of source, if known) */
1146 0, /* issBase: file's string space */
1147 0, /* cbSs: number of bytes in the ss */
1148 0, /* isymBase: beginning of symbols */
1149 0, /* csym: count file's of symbols */
1150 0, /* ilineBase: file's line symbols */
1151 0, /* cline: count of file's line symbols */
1152 0, /* ioptBase: file's optimization entries */
1153 0, /* copt: count of file's optimization entries */
1154 0, /* ipdFirst: start of procedures for this file */
1155 0, /* cpd: count of procedures for this file */
1156 0, /* iauxBase: file's auxiliary entries */
1157 0, /* caux: count of file's auxiliary entries */
1158 0, /* rfdBase: index into the file indirect table */
1159 0, /* crfd: count file indirect entries */
1160 langC, /* lang: language for this file */
1161 1, /* fMerge: whether this file can be merged */
1162 0, /* fReadin: true if read in (not just created) */
1163 #ifdef HOST_WORDS_BIG_ENDIAN
1164 1, /* fBigendian: if 1, compiled on big endian machine */
1165 #else
1166 0, /* fBigendian: if 1, compiled on big endian machine */
1167 #endif
1168 GLEVEL_2, /* glevel: level this file was compiled with */
1169 0, /* reserved: reserved for future use */
1170 0, /* cbLineOffset: byte offset from header for this file ln's */
1171 0, /* cbLine: size of lines for this file */
1172 },
1173
1174 (FDR *) 0, /* orig_fdr: original file header pointer */
1175 (char *) 0, /* name: pointer to filename */
1176 0, /* name_len: length of filename */
1177 0, /* void_type: ptr to aux node for void type */
1178 0, /* int_type: ptr to aux node for int type */
1179 (scope_t *) 0, /* cur_scope: current scope being processed */
1180 0, /* file_index: current file # */
1181 0, /* nested_scopes: # nested scopes */
1182 INIT_VARRAY (char), /* strings: local string varray */
1183 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1184 INIT_VARRAY (PDR), /* procs: procedure varray */
1185 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1186
1187 (struct efdr *) 0, /* next_file: next file structure */
1188
1189 (shash_t **) 0, /* shash_head: string hash table */
1190 { 0 }, /* thash_head: type hash table */
1191 };
1192
1193
1194 static efdr_t *first_file; /* first file descriptor */
1195 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1196
1197
1198 /* Union of various things that are held in pages. */
1199 typedef union page {
1200 char byte [ PAGE_SIZE ];
1201 unsigned char ubyte [ PAGE_SIZE ];
1202 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1203 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1204 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1205 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1206 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1207 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1208 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1209 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1210 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1211 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1212 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1213 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1214 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1215 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1216 } page_t;
1217
1218
1219 /* Structure holding allocation information for small sized structures. */
1220 typedef struct alloc_info {
1221 char *alloc_name; /* name of this allocation type (must be first) */
1222 page_t *cur_page; /* current page being allocated from */
1223 small_free_t free_list; /* current free list if any */
1224 int unallocated; /* number of elements unallocated on page */
1225 int total_alloc; /* total number of allocations */
1226 int total_free; /* total number of frees */
1227 int total_pages; /* total number of pages allocated */
1228 } alloc_info_t;
1229
1230 /* Type information collected together. */
1231 typedef struct type_info {
1232 bt_t basic_type; /* basic type */
1233 coff_type_t orig_type; /* original COFF-based type */
1234 int num_tq; /* # type qualifiers */
1235 int num_dims; /* # dimensions */
1236 int num_sizes; /* # sizes */
1237 int extra_sizes; /* # extra sizes not tied with dims */
1238 tag_t * tag_ptr; /* tag pointer */
1239 int bitfield; /* symbol is a bitfield */
1240 int unknown_tag; /* this is an unknown tag */
1241 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1242 symint_t dimensions [N_TQ]; /* dimensions for each array */
1243 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1244 struct/union/enum + bitfield size */
1245 } type_info_t;
1246
1247 /* Pre-initialized type_info struct. */
1248 static type_info_t type_info_init = {
1249 bt_Nil, /* basic type */
1250 T_NULL, /* original COFF-based type */
1251 0, /* # type qualifiers */
1252 0, /* # dimensions */
1253 0, /* # sizes */
1254 0, /* sizes not tied with dims */
1255 NULL, /* ptr to tag */
1256 0, /* bitfield */
1257 0, /* unknown tag */
1258 { /* type qualifiers */
1259 tq_Nil,
1260 tq_Nil,
1261 tq_Nil,
1262 tq_Nil,
1263 tq_Nil,
1264 tq_Nil,
1265 },
1266 { /* dimensions */
1267 0,
1268 0,
1269 0,
1270 0,
1271 0,
1272 0
1273 },
1274 { /* sizes */
1275 0,
1276 0,
1277 0,
1278 0,
1279 0,
1280 0,
1281 0,
1282 0,
1283 },
1284 };
1285
1286
1287 /* Global virtual arrays & hash table for external strings as well as
1288 for the tags table and global tables for file descriptors, and
1289 dense numbers. */
1290
1291 static varray_t file_desc = INIT_VARRAY (efdr_t);
1292 static varray_t dense_num = INIT_VARRAY (DNR);
1293 static varray_t tag_strings = INIT_VARRAY (char);
1294 static varray_t ext_strings = INIT_VARRAY (char);
1295 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1296
1297 static shash_t *orig_str_hash[SHASH_SIZE];
1298 static shash_t *ext_str_hash [SHASH_SIZE];
1299 static shash_t *tag_hash [SHASH_SIZE];
1300
1301 /* Static types for int and void. Also, remember the last function's
1302 type (which is set up when we encounter the declaration for the
1303 function, and used when the end block for the function is emitted. */
1304
1305 static type_info_t int_type_info;
1306 static type_info_t void_type_info;
1307 static type_info_t last_func_type_info;
1308 static EXTR *last_func_eptr;
1309
1310
1311 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1312 really should use bt_Void, but this causes the current ecoff GDB to
1313 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1314 2.0) doesn't understand it, even though the compiler generates it.
1315 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1316 suite, but for now go with what works. */
1317
1318 static bt_t map_coff_types[ (int)T_MAX ] = {
1319 bt_Nil, /* T_NULL */
1320 bt_Nil, /* T_ARG */
1321 bt_Char, /* T_CHAR */
1322 bt_Short, /* T_SHORT */
1323 bt_Int, /* T_INT */
1324 bt_Long, /* T_LONG */
1325 bt_Float, /* T_FLOAT */
1326 bt_Double, /* T_DOUBLE */
1327 bt_Struct, /* T_STRUCT */
1328 bt_Union, /* T_UNION */
1329 bt_Enum, /* T_ENUM */
1330 bt_Enum, /* T_MOE */
1331 bt_UChar, /* T_UCHAR */
1332 bt_UShort, /* T_USHORT */
1333 bt_UInt, /* T_UINT */
1334 bt_ULong /* T_ULONG */
1335 };
1336
1337 /* Convert COFF storage class to ECOFF storage class. */
1338 static sc_t map_coff_storage[ (int)C_MAX ] = {
1339 sc_Nil, /* 0: C_NULL */
1340 sc_Abs, /* 1: C_AUTO auto var */
1341 sc_Undefined, /* 2: C_EXT external */
1342 sc_Data, /* 3: C_STAT static */
1343 sc_Register, /* 4: C_REG register */
1344 sc_Undefined, /* 5: C_EXTDEF ??? */
1345 sc_Text, /* 6: C_LABEL label */
1346 sc_Text, /* 7: C_ULABEL user label */
1347 sc_Info, /* 8: C_MOS member of struct */
1348 sc_Abs, /* 9: C_ARG argument */
1349 sc_Info, /* 10: C_STRTAG struct tag */
1350 sc_Info, /* 11: C_MOU member of union */
1351 sc_Info, /* 12: C_UNTAG union tag */
1352 sc_Info, /* 13: C_TPDEF typedef */
1353 sc_Data, /* 14: C_USTATIC ??? */
1354 sc_Info, /* 15: C_ENTAG enum tag */
1355 sc_Info, /* 16: C_MOE member of enum */
1356 sc_Register, /* 17: C_REGPARM register parameter */
1357 sc_Bits, /* 18; C_FIELD bitfield */
1358 sc_Nil, /* 19 */
1359 sc_Nil, /* 20 */
1360 sc_Nil, /* 21 */
1361 sc_Nil, /* 22 */
1362 sc_Nil, /* 23 */
1363 sc_Nil, /* 24 */
1364 sc_Nil, /* 25 */
1365 sc_Nil, /* 26 */
1366 sc_Nil, /* 27 */
1367 sc_Nil, /* 28 */
1368 sc_Nil, /* 29 */
1369 sc_Nil, /* 30 */
1370 sc_Nil, /* 31 */
1371 sc_Nil, /* 32 */
1372 sc_Nil, /* 33 */
1373 sc_Nil, /* 34 */
1374 sc_Nil, /* 35 */
1375 sc_Nil, /* 36 */
1376 sc_Nil, /* 37 */
1377 sc_Nil, /* 38 */
1378 sc_Nil, /* 39 */
1379 sc_Nil, /* 40 */
1380 sc_Nil, /* 41 */
1381 sc_Nil, /* 42 */
1382 sc_Nil, /* 43 */
1383 sc_Nil, /* 44 */
1384 sc_Nil, /* 45 */
1385 sc_Nil, /* 46 */
1386 sc_Nil, /* 47 */
1387 sc_Nil, /* 48 */
1388 sc_Nil, /* 49 */
1389 sc_Nil, /* 50 */
1390 sc_Nil, /* 51 */
1391 sc_Nil, /* 52 */
1392 sc_Nil, /* 53 */
1393 sc_Nil, /* 54 */
1394 sc_Nil, /* 55 */
1395 sc_Nil, /* 56 */
1396 sc_Nil, /* 57 */
1397 sc_Nil, /* 58 */
1398 sc_Nil, /* 59 */
1399 sc_Nil, /* 60 */
1400 sc_Nil, /* 61 */
1401 sc_Nil, /* 62 */
1402 sc_Nil, /* 63 */
1403 sc_Nil, /* 64 */
1404 sc_Nil, /* 65 */
1405 sc_Nil, /* 66 */
1406 sc_Nil, /* 67 */
1407 sc_Nil, /* 68 */
1408 sc_Nil, /* 69 */
1409 sc_Nil, /* 70 */
1410 sc_Nil, /* 71 */
1411 sc_Nil, /* 72 */
1412 sc_Nil, /* 73 */
1413 sc_Nil, /* 74 */
1414 sc_Nil, /* 75 */
1415 sc_Nil, /* 76 */
1416 sc_Nil, /* 77 */
1417 sc_Nil, /* 78 */
1418 sc_Nil, /* 79 */
1419 sc_Nil, /* 80 */
1420 sc_Nil, /* 81 */
1421 sc_Nil, /* 82 */
1422 sc_Nil, /* 83 */
1423 sc_Nil, /* 84 */
1424 sc_Nil, /* 85 */
1425 sc_Nil, /* 86 */
1426 sc_Nil, /* 87 */
1427 sc_Nil, /* 88 */
1428 sc_Nil, /* 89 */
1429 sc_Nil, /* 90 */
1430 sc_Nil, /* 91 */
1431 sc_Nil, /* 92 */
1432 sc_Nil, /* 93 */
1433 sc_Nil, /* 94 */
1434 sc_Nil, /* 95 */
1435 sc_Nil, /* 96 */
1436 sc_Nil, /* 97 */
1437 sc_Nil, /* 98 */
1438 sc_Nil, /* 99 */
1439 sc_Text, /* 100: C_BLOCK block start/end */
1440 sc_Text, /* 101: C_FCN function start/end */
1441 sc_Info, /* 102: C_EOS end of struct/union/enum */
1442 sc_Nil, /* 103: C_FILE file start */
1443 sc_Nil, /* 104: C_LINE line number */
1444 sc_Nil, /* 105: C_ALIAS combined type info */
1445 sc_Nil, /* 106: C_HIDDEN ??? */
1446 };
1447
1448 /* Convert COFF storage class to ECOFF symbol type. */
1449 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1450 st_Nil, /* 0: C_NULL */
1451 st_Local, /* 1: C_AUTO auto var */
1452 st_Global, /* 2: C_EXT external */
1453 st_Static, /* 3: C_STAT static */
1454 st_Local, /* 4: C_REG register */
1455 st_Global, /* 5: C_EXTDEF ??? */
1456 st_Label, /* 6: C_LABEL label */
1457 st_Label, /* 7: C_ULABEL user label */
1458 st_Member, /* 8: C_MOS member of struct */
1459 st_Param, /* 9: C_ARG argument */
1460 st_Block, /* 10: C_STRTAG struct tag */
1461 st_Member, /* 11: C_MOU member of union */
1462 st_Block, /* 12: C_UNTAG union tag */
1463 st_Typedef, /* 13: C_TPDEF typedef */
1464 st_Static, /* 14: C_USTATIC ??? */
1465 st_Block, /* 15: C_ENTAG enum tag */
1466 st_Member, /* 16: C_MOE member of enum */
1467 st_Param, /* 17: C_REGPARM register parameter */
1468 st_Member, /* 18; C_FIELD bitfield */
1469 st_Nil, /* 19 */
1470 st_Nil, /* 20 */
1471 st_Nil, /* 21 */
1472 st_Nil, /* 22 */
1473 st_Nil, /* 23 */
1474 st_Nil, /* 24 */
1475 st_Nil, /* 25 */
1476 st_Nil, /* 26 */
1477 st_Nil, /* 27 */
1478 st_Nil, /* 28 */
1479 st_Nil, /* 29 */
1480 st_Nil, /* 30 */
1481 st_Nil, /* 31 */
1482 st_Nil, /* 32 */
1483 st_Nil, /* 33 */
1484 st_Nil, /* 34 */
1485 st_Nil, /* 35 */
1486 st_Nil, /* 36 */
1487 st_Nil, /* 37 */
1488 st_Nil, /* 38 */
1489 st_Nil, /* 39 */
1490 st_Nil, /* 40 */
1491 st_Nil, /* 41 */
1492 st_Nil, /* 42 */
1493 st_Nil, /* 43 */
1494 st_Nil, /* 44 */
1495 st_Nil, /* 45 */
1496 st_Nil, /* 46 */
1497 st_Nil, /* 47 */
1498 st_Nil, /* 48 */
1499 st_Nil, /* 49 */
1500 st_Nil, /* 50 */
1501 st_Nil, /* 51 */
1502 st_Nil, /* 52 */
1503 st_Nil, /* 53 */
1504 st_Nil, /* 54 */
1505 st_Nil, /* 55 */
1506 st_Nil, /* 56 */
1507 st_Nil, /* 57 */
1508 st_Nil, /* 58 */
1509 st_Nil, /* 59 */
1510 st_Nil, /* 60 */
1511 st_Nil, /* 61 */
1512 st_Nil, /* 62 */
1513 st_Nil, /* 63 */
1514 st_Nil, /* 64 */
1515 st_Nil, /* 65 */
1516 st_Nil, /* 66 */
1517 st_Nil, /* 67 */
1518 st_Nil, /* 68 */
1519 st_Nil, /* 69 */
1520 st_Nil, /* 70 */
1521 st_Nil, /* 71 */
1522 st_Nil, /* 72 */
1523 st_Nil, /* 73 */
1524 st_Nil, /* 74 */
1525 st_Nil, /* 75 */
1526 st_Nil, /* 76 */
1527 st_Nil, /* 77 */
1528 st_Nil, /* 78 */
1529 st_Nil, /* 79 */
1530 st_Nil, /* 80 */
1531 st_Nil, /* 81 */
1532 st_Nil, /* 82 */
1533 st_Nil, /* 83 */
1534 st_Nil, /* 84 */
1535 st_Nil, /* 85 */
1536 st_Nil, /* 86 */
1537 st_Nil, /* 87 */
1538 st_Nil, /* 88 */
1539 st_Nil, /* 89 */
1540 st_Nil, /* 90 */
1541 st_Nil, /* 91 */
1542 st_Nil, /* 92 */
1543 st_Nil, /* 93 */
1544 st_Nil, /* 94 */
1545 st_Nil, /* 95 */
1546 st_Nil, /* 96 */
1547 st_Nil, /* 97 */
1548 st_Nil, /* 98 */
1549 st_Nil, /* 99 */
1550 st_Block, /* 100: C_BLOCK block start/end */
1551 st_Proc, /* 101: C_FCN function start/end */
1552 st_End, /* 102: C_EOS end of struct/union/enum */
1553 st_File, /* 103: C_FILE file start */
1554 st_Nil, /* 104: C_LINE line number */
1555 st_Nil, /* 105: C_ALIAS combined type info */
1556 st_Nil, /* 106: C_HIDDEN ??? */
1557 };
1558
1559 /* Map COFF derived types to ECOFF type qualifiers. */
1560 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1561 tq_Nil, /* 0: DT_NON no more qualifiers */
1562 tq_Ptr, /* 1: DT_PTR pointer */
1563 tq_Proc, /* 2: DT_FCN function */
1564 tq_Array, /* 3: DT_ARY array */
1565 };
1566
1567
1568 /* Keep track of different sized allocation requests. */
1569 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1570
1571 \f
1572 /* Pointers and such to the original symbol table that is read in. */
1573 static struct filehdr orig_file_header; /* global object file header */
1574
1575 static HDRR orig_sym_hdr; /* symbolic header on input */
1576 static char *orig_linenum; /* line numbers */
1577 static DNR *orig_dense; /* dense numbers */
1578 static PDR *orig_procs; /* procedures */
1579 static SYMR *orig_local_syms; /* local symbols */
1580 static OPTR *orig_opt_syms; /* optimization symbols */
1581 static AUXU *orig_aux_syms; /* auxiliary symbols */
1582 static char *orig_local_strs; /* local strings */
1583 static char *orig_ext_strs; /* external strings */
1584 static FDR *orig_files; /* file descriptors */
1585 static symint_t *orig_rfds; /* relative file desc's */
1586 static EXTR *orig_ext_syms; /* external symbols */
1587
1588 /* Macros to convert an index into a given object within the original
1589 symbol table. */
1590 #define CHECK(num,max,str) \
1591 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1592
1593 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1594 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1595 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1596 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1597 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1598 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1599 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1600 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1601 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1602 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1603 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1604
1605 /* Various other statics. */
1606 static HDRR symbolic_header; /* symbolic header */
1607 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1608 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1609 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1610 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1611 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1612 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1613 static long file_offset = 0; /* current file offset */
1614 static long max_file_offset = 0; /* maximum file offset */
1615 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1616 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1617 static char *progname = (char *) 0; /* program name for errors */
1618 static char *input_name = "stdin"; /* name of input file */
1619 static char *object_name = (char *) 0; /* tmp. name of object file */
1620 static char *obj_in_name = (char *) 0; /* name of input object file */
1621 static char *cur_line_start = (char *) 0; /* current line read in */
1622 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1623 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1624 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1625 static long line_number = 0; /* current input line number */
1626 static int debug = 0; /* trace functions */
1627 static int version = 0; /* print version # */
1628 static int had_errors = 0; /* != 0 if errors were found */
1629 static int rename_output = 0; /* != 0 if rename output file*/
1630 static int delete_input = 0; /* != 0 if delete input after done */
1631 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1632
1633
1634 /* Pseudo symbol to use when putting stabs into the symbol table. */
1635 #ifndef STABS_SYMBOL
1636 #define STABS_SYMBOL "@stabs"
1637 #endif
1638
1639 static char stabs_symbol[] = STABS_SYMBOL;
1640
1641 \f
1642 /* Forward reference for functions. See the definition for more details. */
1643
1644 #ifndef STATIC
1645 #define STATIC static
1646 #endif
1647
1648 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1649
1650 STATIC shash_t *hash_string __proto((const char *,
1651 Ptrdiff_t,
1652 shash_t **,
1653 symint_t *));
1654
1655 STATIC symint_t add_string __proto((varray_t *,
1656 shash_t **,
1657 const char *,
1658 const char *,
1659 shash_t **));
1660
1661 STATIC symint_t add_local_symbol
1662 __proto((const char *,
1663 const char *,
1664 st_t,
1665 sc_t,
1666 symint_t,
1667 symint_t));
1668
1669 STATIC symint_t add_ext_symbol __proto((const char *,
1670 const char *,
1671 st_t,
1672 sc_t,
1673 long,
1674 symint_t,
1675 int));
1676
1677 STATIC symint_t add_aux_sym_symint
1678 __proto((symint_t));
1679
1680 STATIC symint_t add_aux_sym_rndx
1681 __proto((int, symint_t));
1682
1683 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1684 hash_state_t,
1685 thash_t **));
1686
1687 STATIC tag_t * get_tag __proto((const char *,
1688 const char *,
1689 symint_t,
1690 bt_t));
1691
1692 STATIC void add_unknown_tag __proto((tag_t *));
1693
1694 STATIC void add_procedure __proto((const char *,
1695 const char *));
1696
1697 STATIC void add_file __proto((const char *,
1698 const char *));
1699
1700 STATIC void add_bytes __proto((varray_t *,
1701 char *,
1702 Size_t));
1703
1704 STATIC void add_varray_page __proto((varray_t *));
1705
1706 STATIC void update_headers __proto((void));
1707
1708 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1709 STATIC void write_object __proto((void));
1710 STATIC char *st_to_string __proto((st_t));
1711 STATIC char *sc_to_string __proto((sc_t));
1712 STATIC char *read_line __proto((void));
1713 STATIC void parse_input __proto((void));
1714 STATIC void mark_stabs __proto((const char *));
1715 STATIC void parse_begin __proto((const char *));
1716 STATIC void parse_bend __proto((const char *));
1717 STATIC void parse_def __proto((const char *));
1718 STATIC void parse_end __proto((const char *));
1719 STATIC void parse_ent __proto((const char *));
1720 STATIC void parse_file __proto((const char *));
1721 STATIC void parse_stabs_common
1722 __proto((const char *, const char *, const char *));
1723 STATIC void parse_stabs __proto((const char *));
1724 STATIC void parse_stabn __proto((const char *));
1725 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1726 STATIC void copy_object __proto((void));
1727
1728 STATIC void catch_signal __proto((int));
1729 STATIC page_t *allocate_page __proto((void));
1730
1731 STATIC page_t *allocate_multiple_pages
1732 __proto((Size_t));
1733
1734 STATIC void free_multiple_pages
1735 __proto((page_t *, Size_t));
1736
1737 #ifndef MALLOC_CHECK
1738 STATIC page_t *allocate_cluster
1739 __proto((Size_t));
1740 #endif
1741
1742 STATIC forward_t *allocate_forward __proto((void));
1743 STATIC scope_t *allocate_scope __proto((void));
1744 STATIC shash_t *allocate_shash __proto((void));
1745 STATIC tag_t *allocate_tag __proto((void));
1746 STATIC thash_t *allocate_thash __proto((void));
1747 STATIC thead_t *allocate_thead __proto((void));
1748 STATIC vlinks_t *allocate_vlinks __proto((void));
1749
1750 STATIC void free_forward __proto((forward_t *));
1751 STATIC void free_scope __proto((scope_t *));
1752 STATIC void free_tag __proto((tag_t *));
1753 STATIC void free_thead __proto((thead_t *));
1754
1755 STATIC char *local_index __proto((const char *, int));
1756 STATIC char *local_rindex __proto((const char *, int));
1757
1758 #ifndef __alpha
1759 extern char *sbrk __proto((int));
1760 extern void free __proto((PTR_T));
1761 #endif
1762 extern char *mktemp __proto((char *));
1763 extern long strtol __proto((const char *, char **, int));
1764
1765 extern char *optarg;
1766 extern int optind;
1767 extern int opterr;
1768 extern char *version_string;
1769 #ifndef NO_SYS_SIGLIST
1770 #ifndef SYS_SIGLIST_DECLARED
1771 extern char *sys_siglist[NSIG + 1];
1772 #endif
1773 #endif
1774
1775 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1776 #define SEEK_SET 0 /* Set file pointer to offset */
1777 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1778 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1779 #endif
1780
1781 \f
1782 /* List of assembler pseudo ops and beginning sequences that need
1783 special actions. Someday, this should be a hash table, and such,
1784 but for now a linear list of names and calls to memcmp will
1785 do...... */
1786
1787 typedef struct _pseudo_ops {
1788 const char *name; /* pseudo-op in ascii */
1789 int len; /* length of name to compare */
1790 void (*func) __proto((const char *)); /* function to handle line */
1791 } pseudo_ops_t;
1792
1793 static pseudo_ops_t pseudo_ops[] = {
1794 { "#.def", sizeof("#.def")-1, parse_def },
1795 { "#.begin", sizeof("#.begin")-1, parse_begin },
1796 { "#.bend", sizeof("#.bend")-1, parse_bend },
1797 { ".end", sizeof(".end")-1, parse_end },
1798 { ".ent", sizeof(".ent")-1, parse_ent },
1799 { ".file", sizeof(".file")-1, parse_file },
1800 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1801 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1802 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1803 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1804 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1805 };
1806
1807 \f
1808 /* Add a page to a varray object. */
1809
1810 STATIC void
1811 add_varray_page (vp)
1812 varray_t *vp; /* varray to add page to */
1813 {
1814 vlinks_t *new_links = allocate_vlinks ();
1815
1816 #ifdef MALLOC_CHECK
1817 if (vp->object_size > 1)
1818 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1819 else
1820 #endif
1821 new_links->datum = allocate_page ();
1822
1823 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1824 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1825
1826 new_links->start_index = vp->num_allocated;
1827 vp->objects_last_page = 0;
1828
1829 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1830 vp->first = vp->last = new_links;
1831 else
1832 { /* 2nd or greater allocation */
1833 new_links->prev = vp->last;
1834 vp->last->next = new_links;
1835 vp->last = new_links;
1836 }
1837 }
1838
1839 \f
1840 /* Compute hash code (from tree.c) */
1841
1842 #define HASHBITS 30
1843
1844 STATIC shash_t *
1845 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1846 const char *text; /* ptr to text to hash */
1847 Ptrdiff_t hash_len; /* length of the text */
1848 shash_t **hash_tbl; /* hash table */
1849 symint_t *ret_hash_index; /* ptr to store hash index */
1850 {
1851 register unsigned long hi;
1852 register Ptrdiff_t i;
1853 register shash_t *ptr;
1854 register int first_ch = *text;
1855
1856 hi = hash_len;
1857 for (i = 0; i < hash_len; i++)
1858 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1859
1860 hi &= (1 << HASHBITS) - 1;
1861 hi %= SHASH_SIZE;
1862
1863 if (ret_hash_index != (symint_t *) 0)
1864 *ret_hash_index = hi;
1865
1866 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1867 if (hash_len == ptr->len
1868 && first_ch == ptr->string[0]
1869 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1870 break;
1871
1872 return ptr;
1873 }
1874
1875 \f
1876 /* Add a string (and null pad) to one of the string tables. A
1877 consequence of hashing strings, is that we don't let strings
1878 cross page boundaries. The extra nulls will be ignored. */
1879
1880 STATIC symint_t
1881 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1882 varray_t *vp; /* string virtual array */
1883 shash_t **hash_tbl; /* ptr to hash table */
1884 const char *start; /* 1st byte in string */
1885 const char *end_p1; /* 1st byte after string */
1886 shash_t **ret_hash; /* return hash pointer */
1887 {
1888 register Ptrdiff_t len = end_p1 - start;
1889 register shash_t *hash_ptr;
1890 symint_t hi;
1891
1892 if (len >= PAGE_USIZE)
1893 fatal ("String too big (%ld bytes)", (long) len);
1894
1895 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1896 if (hash_ptr == (shash_t *) 0)
1897 {
1898 register char *p;
1899
1900 if (vp->objects_last_page + len >= PAGE_USIZE)
1901 {
1902 vp->num_allocated
1903 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1904 add_varray_page (vp);
1905 }
1906
1907 hash_ptr = allocate_shash ();
1908 hash_ptr->next = hash_tbl[hi];
1909 hash_tbl[hi] = hash_ptr;
1910
1911 hash_ptr->len = len;
1912 hash_ptr->indx = vp->num_allocated;
1913 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1914
1915 vp->objects_last_page += len+1;
1916 vp->num_allocated += len+1;
1917
1918 while (len-- > 0)
1919 *p++ = *start++;
1920
1921 *p = '\0';
1922 }
1923
1924 if (ret_hash != (shash_t **) 0)
1925 *ret_hash = hash_ptr;
1926
1927 return hash_ptr->indx;
1928 }
1929
1930 \f
1931 /* Add a local symbol. */
1932
1933 STATIC symint_t
1934 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1935 const char *str_start; /* first byte in string */
1936 const char *str_end_p1; /* first byte after string */
1937 st_t type; /* symbol type */
1938 sc_t storage; /* storage class */
1939 symint_t value; /* value of symbol */
1940 symint_t indx; /* index to local/aux. syms */
1941 {
1942 register symint_t ret;
1943 register SYMR *psym;
1944 register scope_t *pscope;
1945 register thead_t *ptag_head;
1946 register tag_t *ptag;
1947 register tag_t *ptag_next;
1948 register varray_t *vp = &cur_file_ptr->symbols;
1949 register int scope_delta = 0;
1950 shash_t *hash_ptr = (shash_t *) 0;
1951
1952 if (vp->objects_last_page == vp->objects_per_page)
1953 add_varray_page (vp);
1954
1955 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1956
1957 psym->value = value;
1958 psym->st = (unsigned) type;
1959 psym->sc = (unsigned) storage;
1960 psym->index = indx;
1961 psym->iss = (str_start == (const char *) 0)
1962 ? 0
1963 : add_string (&cur_file_ptr->strings,
1964 &cur_file_ptr->shash_head[0],
1965 str_start,
1966 str_end_p1,
1967 &hash_ptr);
1968
1969 ret = vp->num_allocated++;
1970
1971 if (MIPS_IS_STAB(psym))
1972 return ret;
1973
1974 /* Save the symbol within the hash table if this is a static
1975 item, and it has a name. */
1976 if (hash_ptr != (shash_t *) 0
1977 && (type == st_Global || type == st_Static || type == st_Label
1978 || type == st_Proc || type == st_StaticProc))
1979 hash_ptr->sym_ptr = psym;
1980
1981 /* push or pop a scope if appropriate. */
1982 switch (type)
1983 {
1984 default:
1985 break;
1986
1987 case st_File: /* beginning of file */
1988 case st_Proc: /* procedure */
1989 case st_StaticProc: /* static procedure */
1990 case st_Block: /* begin scope */
1991 pscope = allocate_scope ();
1992 pscope->prev = cur_file_ptr->cur_scope;
1993 pscope->lsym = psym;
1994 pscope->lnumber = ret;
1995 pscope->type = type;
1996 cur_file_ptr->cur_scope = pscope;
1997
1998 if (type != st_File)
1999 scope_delta = 1;
2000
2001 /* For every block type except file, struct, union, or
2002 enumeration blocks, push a level on the tag stack. We omit
2003 file types, so that tags can span file boundaries. */
2004 if (type != st_File && storage != sc_Info)
2005 {
2006 ptag_head = allocate_thead ();
2007 ptag_head->first_tag = 0;
2008 ptag_head->prev = cur_tag_head;
2009 cur_tag_head = ptag_head;
2010 }
2011 break;
2012
2013 case st_End:
2014 pscope = cur_file_ptr->cur_scope;
2015 if (pscope == (scope_t *)0)
2016 error ("internal error, too many st_End's");
2017
2018 else
2019 {
2020 st_t begin_type = (st_t) pscope->lsym->st;
2021
2022 if (begin_type != st_File)
2023 scope_delta = -1;
2024
2025 /* Except for file, structure, union, or enumeration end
2026 blocks remove all tags created within this scope. */
2027 if (begin_type != st_File && storage != sc_Info)
2028 {
2029 ptag_head = cur_tag_head;
2030 cur_tag_head = ptag_head->prev;
2031
2032 for (ptag = ptag_head->first_tag;
2033 ptag != (tag_t *) 0;
2034 ptag = ptag_next)
2035 {
2036 if (ptag->forward_ref != (forward_t *) 0)
2037 add_unknown_tag (ptag);
2038
2039 ptag_next = ptag->same_block;
2040 ptag->hash_ptr->tag_ptr = ptag->same_name;
2041 free_tag (ptag);
2042 }
2043
2044 free_thead (ptag_head);
2045 }
2046
2047 cur_file_ptr->cur_scope = pscope->prev;
2048 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2049
2050 if (storage != sc_Info)
2051 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2052
2053 if (begin_type == st_File || begin_type == st_Block)
2054 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2055
2056 /* Functions push two or more aux words as follows:
2057 1st word: index+1 of the end symbol
2058 2nd word: type of the function (plus any aux words needed).
2059 Also, tie the external pointer back to the function begin symbol. */
2060 else
2061 {
2062 symint_t type;
2063 pscope->lsym->index = add_aux_sym_symint (ret+1);
2064 type = add_aux_sym_tir (&last_func_type_info,
2065 hash_no,
2066 &cur_file_ptr->thash_head[0]);
2067 if (last_func_eptr)
2068 {
2069 last_func_eptr->ifd = cur_file_ptr->file_index;
2070
2071 /* The index for an external st_Proc symbol is the index
2072 of the st_Proc symbol in the local symbol table. */
2073 last_func_eptr->asym.index = psym->index;
2074 }
2075 }
2076
2077 free_scope (pscope);
2078 }
2079 }
2080
2081 cur_file_ptr->nested_scopes += scope_delta;
2082
2083 if (debug && type != st_File
2084 && (debug > 2 || type == st_Block || type == st_End
2085 || type == st_Proc || type == st_StaticProc))
2086 {
2087 char *sc_str = sc_to_string (storage);
2088 char *st_str = st_to_string (type);
2089 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2090
2091 fprintf (stderr,
2092 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2093 value, depth, sc_str);
2094
2095 if (str_start && str_end_p1 - str_start > 0)
2096 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2097 else
2098 {
2099 Size_t len = strlen (st_str);
2100 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2101 }
2102 }
2103
2104 return ret;
2105 }
2106
2107 \f
2108 /* Add an external symbol. */
2109
2110 STATIC symint_t
2111 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2112 const char *str_start; /* first byte in string */
2113 const char *str_end_p1; /* first byte after string */
2114 st_t type; /* symbol type */
2115 sc_t storage; /* storage class */
2116 long value; /* value of symbol */
2117 symint_t indx; /* index to local/aux. syms */
2118 int ifd; /* file index */
2119 {
2120 register EXTR *psym;
2121 register varray_t *vp = &ext_symbols;
2122 shash_t *hash_ptr = (shash_t *) 0;
2123
2124 if (debug > 1)
2125 {
2126 char *sc_str = sc_to_string (storage);
2127 char *st_str = st_to_string (type);
2128
2129 fprintf (stderr,
2130 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2131 value, ifd, sc_str);
2132
2133 if (str_start && str_end_p1 - str_start > 0)
2134 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2135 else
2136 fprintf (stderr, " st= %s\n", st_str);
2137 }
2138
2139 if (vp->objects_last_page == vp->objects_per_page)
2140 add_varray_page (vp);
2141
2142 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2143
2144 psym->ifd = ifd;
2145 psym->asym.value = value;
2146 psym->asym.st = (unsigned) type;
2147 psym->asym.sc = (unsigned) storage;
2148 psym->asym.index = indx;
2149 psym->asym.iss = (str_start == (const char *) 0)
2150 ? 0
2151 : add_string (&ext_strings,
2152 &ext_str_hash[0],
2153 str_start,
2154 str_end_p1,
2155 &hash_ptr);
2156
2157 hash_ptr->esym_ptr = psym;
2158 return vp->num_allocated++;
2159 }
2160
2161 \f
2162 /* Add an auxiliary symbol (passing a symint). */
2163
2164 STATIC symint_t
2165 add_aux_sym_symint (aux_word)
2166 symint_t aux_word; /* auxiliary information word */
2167 {
2168 register AUXU *aux_ptr;
2169 register efdr_t *file_ptr = cur_file_ptr;
2170 register varray_t *vp = &file_ptr->aux_syms;
2171
2172 if (vp->objects_last_page == vp->objects_per_page)
2173 add_varray_page (vp);
2174
2175 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2176 aux_ptr->isym = aux_word;
2177
2178 return vp->num_allocated++;
2179 }
2180
2181
2182 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2183
2184 STATIC symint_t
2185 add_aux_sym_rndx (file_index, sym_index)
2186 int file_index;
2187 symint_t sym_index;
2188 {
2189 register AUXU *aux_ptr;
2190 register efdr_t *file_ptr = cur_file_ptr;
2191 register varray_t *vp = &file_ptr->aux_syms;
2192
2193 if (vp->objects_last_page == vp->objects_per_page)
2194 add_varray_page (vp);
2195
2196 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2197 aux_ptr->rndx.rfd = file_index;
2198 aux_ptr->rndx.index = sym_index;
2199
2200 return vp->num_allocated++;
2201 }
2202
2203 \f
2204 /* Add an auxiliary symbol (passing the basic type and possibly
2205 type qualifiers). */
2206
2207 STATIC symint_t
2208 add_aux_sym_tir (t, state, hash_tbl)
2209 type_info_t *t; /* current type information */
2210 hash_state_t state; /* whether to hash type or not */
2211 thash_t **hash_tbl; /* pointer to hash table to use */
2212 {
2213 register AUXU *aux_ptr;
2214 register efdr_t *file_ptr = cur_file_ptr;
2215 register varray_t *vp = &file_ptr->aux_syms;
2216 static AUXU init_aux;
2217 symint_t ret;
2218 int i;
2219 AUXU aux;
2220
2221 aux = init_aux;
2222 aux.ti.bt = (int) t->basic_type;
2223 aux.ti.continued = 0;
2224 aux.ti.fBitfield = t->bitfield;
2225
2226 aux.ti.tq0 = (int) t->type_qualifiers[0];
2227 aux.ti.tq1 = (int) t->type_qualifiers[1];
2228 aux.ti.tq2 = (int) t->type_qualifiers[2];
2229 aux.ti.tq3 = (int) t->type_qualifiers[3];
2230 aux.ti.tq4 = (int) t->type_qualifiers[4];
2231 aux.ti.tq5 = (int) t->type_qualifiers[5];
2232
2233
2234 /* For anything that adds additional information, we must not hash,
2235 so check here, and reset our state. */
2236
2237 if (state != hash_no
2238 && (t->type_qualifiers[0] == tq_Array
2239 || t->type_qualifiers[1] == tq_Array
2240 || t->type_qualifiers[2] == tq_Array
2241 || t->type_qualifiers[3] == tq_Array
2242 || t->type_qualifiers[4] == tq_Array
2243 || t->type_qualifiers[5] == tq_Array
2244 || t->basic_type == bt_Struct
2245 || t->basic_type == bt_Union
2246 || t->basic_type == bt_Enum
2247 || t->bitfield
2248 || t->num_dims > 0))
2249 state = hash_no;
2250
2251 /* See if we can hash this type, and save some space, but some types
2252 can't be hashed (because they contain arrays or continuations),
2253 and others can be put into the hash list, but cannot use existing
2254 types because other aux entries precede this one. */
2255
2256 if (state != hash_no)
2257 {
2258 register thash_t *hash_ptr;
2259 register symint_t hi;
2260
2261 hi = aux.isym & ((1 << HASHBITS) - 1);
2262 hi %= THASH_SIZE;
2263
2264 for (hash_ptr = hash_tbl[hi];
2265 hash_ptr != (thash_t *) 0;
2266 hash_ptr = hash_ptr->next)
2267 {
2268 if (aux.isym == hash_ptr->type.isym)
2269 break;
2270 }
2271
2272 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2273 return hash_ptr->indx;
2274
2275 if (hash_ptr == (thash_t *) 0)
2276 {
2277 hash_ptr = allocate_thash ();
2278 hash_ptr->next = hash_tbl[hi];
2279 hash_ptr->type = aux;
2280 hash_ptr->indx = vp->num_allocated;
2281 hash_tbl[hi] = hash_ptr;
2282 }
2283 }
2284
2285 /* Everything is set up, add the aux symbol. */
2286 if (vp->objects_last_page == vp->objects_per_page)
2287 add_varray_page (vp);
2288
2289 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2290 *aux_ptr = aux;
2291
2292 ret = vp->num_allocated++;
2293
2294 /* Add bitfield length if it exists.
2295
2296 NOTE: Mips documentation claims bitfield goes at the end of the
2297 AUX record, but the DECstation compiler emits it here.
2298 (This would only make a difference for enum bitfields.)
2299
2300 Also note: We use the last size given since gcc may emit 2
2301 for an enum bitfield. */
2302
2303 if (t->bitfield)
2304 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2305
2306
2307 /* Add tag information if needed. Structure, union, and enum
2308 references add 2 aux symbols: a [file index, symbol index]
2309 pointer to the structure type, and the current file index. */
2310
2311 if (t->basic_type == bt_Struct
2312 || t->basic_type == bt_Union
2313 || t->basic_type == bt_Enum)
2314 {
2315 register symint_t file_index = t->tag_ptr->ifd;
2316 register symint_t sym_index = t->tag_ptr->indx;
2317
2318 if (t->unknown_tag)
2319 {
2320 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2321 (void) add_aux_sym_symint ((symint_t)-1);
2322 }
2323 else if (sym_index != indexNil)
2324 {
2325 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2326 (void) add_aux_sym_symint (file_index);
2327 }
2328 else
2329 {
2330 register forward_t *forward_ref = allocate_forward ();
2331
2332 forward_ref->type_ptr = aux_ptr;
2333 forward_ref->next = t->tag_ptr->forward_ref;
2334 t->tag_ptr->forward_ref = forward_ref;
2335
2336 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2337 forward_ref->index_ptr
2338 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2339
2340 (void) add_aux_sym_symint (file_index);
2341 forward_ref->ifd_ptr
2342 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2343 }
2344 }
2345
2346 /* Add information about array bounds if they exist. */
2347 for (i = 0; i < t->num_dims; i++)
2348 {
2349 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2350 cur_file_ptr->int_type);
2351
2352 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2353 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2354 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2355 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2356 ? 0
2357 : (t->sizes[i] * 8) / t->dimensions[i]);
2358 };
2359
2360 /* NOTE: Mips documentation claims that the bitfield width goes here.
2361 But it needs to be emitted earlier. */
2362
2363 return ret;
2364 }
2365
2366 \f
2367 /* Add a tag to the tag table (unless it already exists). */
2368
2369 STATIC tag_t *
2370 get_tag (tag_start, tag_end_p1, indx, basic_type)
2371 const char *tag_start; /* 1st byte of tag name */
2372 const char *tag_end_p1; /* 1st byte after tag name */
2373 symint_t indx; /* index of tag start block */
2374 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2375 {
2376 shash_t *hash_ptr;
2377 tag_t *tag_ptr;
2378 hash_ptr = hash_string (tag_start,
2379 tag_end_p1 - tag_start,
2380 &tag_hash[0],
2381 (symint_t *) 0);
2382
2383 if (hash_ptr != (shash_t *) 0
2384 && hash_ptr->tag_ptr != (tag_t *) 0)
2385 {
2386 tag_ptr = hash_ptr->tag_ptr;
2387 if (indx != indexNil)
2388 {
2389 tag_ptr->basic_type = basic_type;
2390 tag_ptr->ifd = cur_file_ptr->file_index;
2391 tag_ptr->indx = indx;
2392 }
2393 return tag_ptr;
2394 }
2395
2396 (void) add_string (&tag_strings,
2397 &tag_hash[0],
2398 tag_start,
2399 tag_end_p1,
2400 &hash_ptr);
2401
2402 tag_ptr = allocate_tag ();
2403 tag_ptr->forward_ref = (forward_t *) 0;
2404 tag_ptr->hash_ptr = hash_ptr;
2405 tag_ptr->same_name = hash_ptr->tag_ptr;
2406 tag_ptr->basic_type = basic_type;
2407 tag_ptr->indx = indx;
2408 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2409 tag_ptr->same_block = cur_tag_head->first_tag;
2410
2411 cur_tag_head->first_tag = tag_ptr;
2412 hash_ptr->tag_ptr = tag_ptr;
2413
2414 return tag_ptr;
2415 }
2416
2417 \f
2418 /* Add an unknown {struct, union, enum} tag. */
2419
2420 STATIC void
2421 add_unknown_tag (ptag)
2422 tag_t *ptag; /* pointer to tag information */
2423 {
2424 shash_t *hash_ptr = ptag->hash_ptr;
2425 char *name_start = hash_ptr->string;
2426 char *name_end_p1 = name_start + hash_ptr->len;
2427 forward_t *f_next = ptag->forward_ref;
2428 forward_t *f_cur;
2429 int sym_index;
2430 int file_index = cur_file_ptr->file_index;
2431
2432 if (debug > 1)
2433 {
2434 char *agg_type = "{unknown aggregate type}";
2435 switch (ptag->basic_type)
2436 {
2437 case bt_Struct: agg_type = "struct"; break;
2438 case bt_Union: agg_type = "union"; break;
2439 case bt_Enum: agg_type = "enum"; break;
2440 default: break;
2441 }
2442
2443 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2444 hash_ptr->len, name_start);
2445 }
2446
2447 sym_index = add_local_symbol (name_start,
2448 name_end_p1,
2449 st_Block,
2450 sc_Info,
2451 (symint_t) 0,
2452 (symint_t) 0);
2453
2454 (void) add_local_symbol (name_start,
2455 name_end_p1,
2456 st_End,
2457 sc_Info,
2458 (symint_t) 0,
2459 (symint_t) 0);
2460
2461 while (f_next != (forward_t *) 0)
2462 {
2463 f_cur = f_next;
2464 f_next = f_next->next;
2465
2466 f_cur->ifd_ptr->isym = file_index;
2467 f_cur->index_ptr->rndx.index = sym_index;
2468
2469 free_forward (f_cur);
2470 }
2471
2472 return;
2473 }
2474
2475 \f
2476 /* Add a procedure to the current file's list of procedures, and record
2477 this is the current procedure. If the assembler created a PDR for
2478 this procedure, use that to initialize the current PDR. */
2479
2480 STATIC void
2481 add_procedure (func_start, func_end_p1)
2482 const char *func_start; /* 1st byte of func name */
2483 const char *func_end_p1; /* 1st byte after func name */
2484 {
2485 register PDR *new_proc_ptr;
2486 register efdr_t *file_ptr = cur_file_ptr;
2487 register varray_t *vp = &file_ptr->procs;
2488 register symint_t value = 0;
2489 register st_t proc_type = st_Proc;
2490 register shash_t *shash_ptr = hash_string (func_start,
2491 func_end_p1 - func_start,
2492 &orig_str_hash[0],
2493 (symint_t *) 0);
2494
2495 if (debug)
2496 fputc ('\n', stderr);
2497
2498 if (vp->objects_last_page == vp->objects_per_page)
2499 add_varray_page (vp);
2500
2501 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2502
2503 vp->num_allocated++;
2504
2505
2506 /* Did the assembler create this procedure? If so, get the PDR information. */
2507 cur_oproc_ptr = (PDR *) 0;
2508 if (shash_ptr != (shash_t *) 0)
2509 {
2510 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2511 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2512
2513 if (old_proc_ptr != (PDR *) 0
2514 && sym_ptr != (SYMR *) 0
2515 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2516 {
2517 cur_oproc_begin = sym_ptr;
2518 cur_oproc_end = shash_ptr->end_ptr;
2519 value = sym_ptr->value;
2520
2521 cur_oproc_ptr = old_proc_ptr;
2522 proc_type = (st_t)sym_ptr->st;
2523 *new_proc_ptr = *old_proc_ptr; /* initialize */
2524 }
2525 }
2526
2527 if (cur_oproc_ptr == (PDR *) 0)
2528 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2529
2530 /* Determine the start of symbols. */
2531 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2532
2533 /* Push the start of the function. */
2534 (void) add_local_symbol (func_start, func_end_p1,
2535 proc_type, sc_Text,
2536 value,
2537 (symint_t) 0);
2538 }
2539
2540 \f
2541 /* Add a new filename, and set up all of the file relative
2542 virtual arrays (strings, symbols, aux syms, etc.). Record
2543 where the current file structure lives. */
2544
2545 STATIC void
2546 add_file (file_start, file_end_p1)
2547 const char *file_start; /* first byte in string */
2548 const char *file_end_p1; /* first byte after string */
2549 {
2550 static char zero_bytes[2] = { '\0', '\0' };
2551
2552 register Ptrdiff_t len = file_end_p1 - file_start;
2553 register int first_ch = *file_start;
2554 register efdr_t *file_ptr;
2555
2556 if (debug)
2557 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2558
2559 /* See if the file has already been created. */
2560 for (file_ptr = first_file;
2561 file_ptr != (efdr_t *) 0;
2562 file_ptr = file_ptr->next_file)
2563 {
2564 if (first_ch == file_ptr->name[0]
2565 && file_ptr->name[len] == '\0'
2566 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2567 {
2568 cur_file_ptr = file_ptr;
2569 break;
2570 }
2571 }
2572
2573 /* If this is a new file, create it. */
2574 if (file_ptr == (efdr_t *) 0)
2575 {
2576 if (file_desc.objects_last_page == file_desc.objects_per_page)
2577 add_varray_page (&file_desc);
2578
2579 file_ptr = cur_file_ptr
2580 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2581 *file_ptr = init_file;
2582
2583 file_ptr->file_index = file_desc.num_allocated++;
2584
2585 /* Allocate the string hash table. */
2586 file_ptr->shash_head = (shash_t **) allocate_page ();
2587
2588 /* Make sure 0 byte in string table is null */
2589 add_string (&file_ptr->strings,
2590 &file_ptr->shash_head[0],
2591 &zero_bytes[0],
2592 &zero_bytes[0],
2593 (shash_t **) 0);
2594
2595 if (file_end_p1 - file_start > PAGE_USIZE-2)
2596 fatal ("Filename goes over one page boundary.");
2597
2598 /* Push the start of the filename. We assume that the filename
2599 will be stored at string offset 1. */
2600 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2601 (symint_t) 0, (symint_t) 0);
2602 file_ptr->fdr.rss = 1;
2603 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2604 file_ptr->name_len = file_end_p1 - file_start;
2605
2606 /* Update the linked list of file descriptors. */
2607 *last_file_ptr = file_ptr;
2608 last_file_ptr = &file_ptr->next_file;
2609
2610 /* Add void & int types to the file (void should be first to catch
2611 errant 0's within the index fields). */
2612 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2613 hash_yes,
2614 &cur_file_ptr->thash_head[0]);
2615
2616 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2617 hash_yes,
2618 &cur_file_ptr->thash_head[0]);
2619 }
2620 }
2621
2622 \f
2623 /* Add a stream of random bytes to a varray. */
2624
2625 STATIC void
2626 add_bytes (vp, input_ptr, nitems)
2627 varray_t *vp; /* virtual array to add too */
2628 char *input_ptr; /* start of the bytes */
2629 Size_t nitems; /* # items to move */
2630 {
2631 register Size_t move_items;
2632 register Size_t move_bytes;
2633 register char *ptr;
2634
2635 while (nitems > 0)
2636 {
2637 if (vp->objects_last_page >= vp->objects_per_page)
2638 add_varray_page (vp);
2639
2640 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2641 move_items = vp->objects_per_page - vp->objects_last_page;
2642 if (move_items > nitems)
2643 move_items = nitems;
2644
2645 move_bytes = move_items * vp->object_size;
2646 nitems -= move_items;
2647
2648 if (move_bytes >= 32)
2649 {
2650 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2651 input_ptr += move_bytes;
2652 }
2653 else
2654 {
2655 while (move_bytes-- > 0)
2656 *ptr++ = *input_ptr++;
2657 }
2658 }
2659 }
2660
2661 \f
2662 /* Convert storage class to string. */
2663
2664 STATIC char *
2665 sc_to_string(storage_class)
2666 sc_t storage_class;
2667 {
2668 switch(storage_class)
2669 {
2670 case sc_Nil: return "Nil,";
2671 case sc_Text: return "Text,";
2672 case sc_Data: return "Data,";
2673 case sc_Bss: return "Bss,";
2674 case sc_Register: return "Register,";
2675 case sc_Abs: return "Abs,";
2676 case sc_Undefined: return "Undefined,";
2677 case sc_CdbLocal: return "CdbLocal,";
2678 case sc_Bits: return "Bits,";
2679 case sc_CdbSystem: return "CdbSystem,";
2680 case sc_RegImage: return "RegImage,";
2681 case sc_Info: return "Info,";
2682 case sc_UserStruct: return "UserStruct,";
2683 case sc_SData: return "SData,";
2684 case sc_SBss: return "SBss,";
2685 case sc_RData: return "RData,";
2686 case sc_Var: return "Var,";
2687 case sc_Common: return "Common,";
2688 case sc_SCommon: return "SCommon,";
2689 case sc_VarRegister: return "VarRegister,";
2690 case sc_Variant: return "Variant,";
2691 case sc_SUndefined: return "SUndefined,";
2692 case sc_Init: return "Init,";
2693 case sc_Max: return "Max,";
2694 }
2695
2696 return "???,";
2697 }
2698
2699 \f
2700 /* Convert symbol type to string. */
2701
2702 STATIC char *
2703 st_to_string(symbol_type)
2704 st_t symbol_type;
2705 {
2706 switch(symbol_type)
2707 {
2708 case st_Nil: return "Nil,";
2709 case st_Global: return "Global,";
2710 case st_Static: return "Static,";
2711 case st_Param: return "Param,";
2712 case st_Local: return "Local,";
2713 case st_Label: return "Label,";
2714 case st_Proc: return "Proc,";
2715 case st_Block: return "Block,";
2716 case st_End: return "End,";
2717 case st_Member: return "Member,";
2718 case st_Typedef: return "Typedef,";
2719 case st_File: return "File,";
2720 case st_RegReloc: return "RegReloc,";
2721 case st_Forward: return "Forward,";
2722 case st_StaticProc: return "StaticProc,";
2723 case st_Constant: return "Constant,";
2724 case st_Str: return "String,";
2725 case st_Number: return "Number,";
2726 case st_Expr: return "Expr,";
2727 case st_Type: return "Type,";
2728 case st_Max: return "Max,";
2729 }
2730
2731 return "???,";
2732 }
2733
2734 \f
2735 /* Read a line from standard input, and return the start of the buffer
2736 (which is grows if the line is too big). We split lines at the
2737 semi-colon, and return each logical line independently. */
2738
2739 STATIC char *
2740 read_line __proto((void))
2741 {
2742 static int line_split_p = 0;
2743 register int string_p = 0;
2744 register int comment_p = 0;
2745 register int ch;
2746 register char *ptr;
2747
2748 if (cur_line_start == (char *) 0)
2749 { /* allocate initial page */
2750 cur_line_start = (char *) allocate_page ();
2751 cur_line_alloc = PAGE_SIZE;
2752 }
2753
2754 if (!line_split_p)
2755 line_number++;
2756
2757 line_split_p = 0;
2758 cur_line_nbytes = 0;
2759
2760 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2761 {
2762 if (++cur_line_nbytes >= cur_line_alloc-1)
2763 {
2764 register int num_pages = cur_line_alloc / PAGE_SIZE;
2765 register char *old_buffer = cur_line_start;
2766
2767 cur_line_alloc += PAGE_SIZE;
2768 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2769 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2770
2771 ptr = cur_line_start + cur_line_nbytes - 1;
2772 }
2773
2774 if (ch == '\n')
2775 {
2776 *ptr++ = '\n';
2777 *ptr = '\0';
2778 cur_line_ptr = cur_line_start;
2779 return cur_line_ptr;
2780 }
2781
2782 else if (ch == '\0')
2783 error ("Null character found in input");
2784
2785 else if (!comment_p)
2786 {
2787 if (ch == '"')
2788 string_p = !string_p;
2789
2790 else if (ch == '#')
2791 comment_p++;
2792
2793 else if (ch == ';' && !string_p)
2794 {
2795 line_split_p = 1;
2796 *ptr++ = '\n';
2797 *ptr = '\0';
2798 cur_line_ptr = cur_line_start;
2799 return cur_line_ptr;
2800 }
2801 }
2802 }
2803
2804 if (ferror (stdin))
2805 pfatal_with_name (input_name);
2806
2807 cur_line_ptr = (char *) 0;
2808 return (char *) 0;
2809 }
2810
2811 \f
2812 /* Parse #.begin directives which have a label as the first argument
2813 which gives the location of the start of the block. */
2814
2815 STATIC void
2816 parse_begin (start)
2817 const char *start; /* start of directive */
2818 {
2819 const char *end_p1; /* end of label */
2820 int ch;
2821 shash_t *hash_ptr; /* hash pointer to lookup label */
2822
2823 if (cur_file_ptr == (efdr_t *) 0)
2824 {
2825 error ("#.begin directive without a preceding .file directive");
2826 return;
2827 }
2828
2829 if (cur_proc_ptr == (PDR *) 0)
2830 {
2831 error ("#.begin directive without a preceding .ent directive");
2832 return;
2833 }
2834
2835 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2836 ;
2837
2838 hash_ptr = hash_string (start,
2839 end_p1 - start,
2840 &orig_str_hash[0],
2841 (symint_t *) 0);
2842
2843 if (hash_ptr == (shash_t *) 0)
2844 {
2845 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2846 return;
2847 }
2848
2849 if (cur_oproc_begin == (SYMR *) 0)
2850 {
2851 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2852 return;
2853 }
2854
2855 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2856 st_Block, sc_Text,
2857 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2858 (symint_t) 0);
2859 }
2860
2861 \f
2862 /* Parse #.bend directives which have a label as the first argument
2863 which gives the location of the end of the block. */
2864
2865 STATIC void
2866 parse_bend (start)
2867 const char *start; /* start of directive */
2868 {
2869 const char *end_p1; /* end of label */
2870 int ch;
2871 shash_t *hash_ptr; /* hash pointer to lookup label */
2872
2873 if (cur_file_ptr == (efdr_t *) 0)
2874 {
2875 error ("#.begin directive without a preceding .file directive");
2876 return;
2877 }
2878
2879 if (cur_proc_ptr == (PDR *) 0)
2880 {
2881 error ("#.bend directive without a preceding .ent directive");
2882 return;
2883 }
2884
2885 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2886 ;
2887
2888 hash_ptr = hash_string (start,
2889 end_p1 - start,
2890 &orig_str_hash[0],
2891 (symint_t *) 0);
2892
2893 if (hash_ptr == (shash_t *) 0)
2894 {
2895 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2896 return;
2897 }
2898
2899 if (cur_oproc_begin == (SYMR *) 0)
2900 {
2901 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2902 return;
2903 }
2904
2905 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2906 st_End, sc_Text,
2907 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2908 (symint_t) 0);
2909 }
2910
2911 \f
2912 /* Parse #.def directives, which are contain standard COFF subdirectives
2913 to describe the debugging format. These subdirectives include:
2914
2915 .scl specify storage class
2916 .val specify a value
2917 .endef specify end of COFF directives
2918 .type specify the type
2919 .size specify the size of an array
2920 .dim specify an array dimension
2921 .tag specify a tag for a struct, union, or enum. */
2922
2923 STATIC void
2924 parse_def (name_start)
2925 const char *name_start; /* start of directive */
2926 {
2927 const char *dir_start; /* start of current directive*/
2928 const char *dir_end_p1; /* end+1 of current directive*/
2929 const char *arg_start; /* start of current argument */
2930 const char *arg_end_p1; /* end+1 of current argument */
2931 const char *name_end_p1; /* end+1 of label */
2932 const char *tag_start = (const char *) 0; /* start of tag name */
2933 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2934 sc_t storage_class = sc_Nil;
2935 st_t symbol_type = st_Nil;
2936 type_info_t t;
2937 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2938 int is_function = 0; /* != 0 if function */
2939 symint_t value = 0;
2940 symint_t indx = cur_file_ptr->void_type;
2941 int error_line = 0;
2942 symint_t arg_number;
2943 symint_t temp_array[ N_TQ ];
2944 int arg_was_number;
2945 int ch, i;
2946 Ptrdiff_t len;
2947
2948 static int inside_enumeration = 0; /* is this an enumeration? */
2949
2950
2951 /* Initialize the type information. */
2952 t = type_info_init;
2953
2954
2955 /* Search for the end of the name being defined. */
2956 /* Allow spaces and such in names for G++ templates, which produce stabs
2957 that look like:
2958
2959 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2960
2961 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2962 ;
2963
2964 if (ch == '\0')
2965 {
2966 error_line = __LINE__;
2967 saber_stop ();
2968 goto bomb_out;
2969 }
2970
2971 /* Parse the remaining subdirectives now. */
2972 dir_start = name_end_p1+1;
2973 for (;;)
2974 {
2975 while ((ch = *dir_start) == ' ' || ch == '\t')
2976 ++dir_start;
2977
2978 if (ch != '.')
2979 {
2980 error_line = __LINE__;
2981 saber_stop ();
2982 goto bomb_out;
2983 }
2984
2985 /* Are we done? */
2986 if (dir_start[1] == 'e'
2987 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2988 break;
2989
2990 /* Pick up the subdirective now */
2991 for (dir_end_p1 = dir_start+1;
2992 (ch = *dir_end_p1) != ' ' && ch != '\t';
2993 dir_end_p1++)
2994 {
2995 if (ch == '\0' || isspace (ch))
2996 {
2997 error_line = __LINE__;
2998 saber_stop ();
2999 goto bomb_out;
3000 }
3001 }
3002
3003 /* Pick up the subdirective argument now. */
3004 arg_was_number = arg_number = 0;
3005 arg_end_p1 = (const char *) 0;
3006 arg_start = dir_end_p1+1;
3007 ch = *arg_start;
3008 while (ch == ' ' || ch == '\t')
3009 ch = *++arg_start;
3010
3011 if (isdigit (ch) || ch == '-' || ch == '+')
3012 {
3013 int ch2;
3014 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3015 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3016 arg_was_number++;
3017 }
3018
3019 else if (ch == '\0' || isspace (ch))
3020 {
3021 error_line = __LINE__;
3022 saber_stop ();
3023 goto bomb_out;
3024 }
3025
3026 if (!arg_was_number)
3027 {
3028 /* Allow spaces and such in names for G++ templates. */
3029 for (arg_end_p1 = arg_start+1;
3030 (ch = *arg_end_p1) != ';' && ch != '\0';
3031 arg_end_p1++)
3032 ;
3033
3034 if (ch == '\0')
3035 {
3036 error_line = __LINE__;
3037 saber_stop ();
3038 goto bomb_out;
3039 }
3040 }
3041
3042 /* Classify the directives now. */
3043 len = dir_end_p1 - dir_start;
3044 switch (dir_start[1])
3045 {
3046 default:
3047 error_line = __LINE__;
3048 saber_stop ();
3049 goto bomb_out;
3050
3051 case 'd':
3052 if (len == sizeof (".dim")-1
3053 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3054 && arg_was_number)
3055 {
3056 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3057
3058 *t_ptr = arg_number;
3059 while (*arg_end_p1 == ',' && arg_was_number)
3060 {
3061 arg_start = arg_end_p1+1;
3062 ch = *arg_start;
3063 while (ch == ' ' || ch == '\t')
3064 ch = *++arg_start;
3065
3066 arg_was_number = 0;
3067 if (isdigit (ch) || ch == '-' || ch == '+')
3068 {
3069 int ch2;
3070 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3071 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3072 arg_was_number++;
3073
3074 if (t_ptr == &temp_array[0])
3075 {
3076 error_line = __LINE__;
3077 saber_stop ();
3078 goto bomb_out;
3079 }
3080
3081 *--t_ptr = arg_number;
3082 }
3083 }
3084
3085 /* Reverse order of dimensions. */
3086 while (t_ptr <= &temp_array[ N_TQ-1 ])
3087 {
3088 if (t.num_dims >= N_TQ-1)
3089 {
3090 error_line = __LINE__;
3091 saber_stop ();
3092 goto bomb_out;
3093 }
3094
3095 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3096 }
3097 break;
3098 }
3099 else
3100 {
3101 error_line = __LINE__;
3102 saber_stop ();
3103 goto bomb_out;
3104 }
3105
3106
3107 case 's':
3108 if (len == sizeof (".scl")-1
3109 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3110 && arg_was_number
3111 && arg_number < ((symint_t) C_MAX))
3112 {
3113 /* If the symbol is a static or external, we have
3114 already gotten the appropriate type and class, so
3115 make sure we don't override those values. This is
3116 needed because there are some type and classes that
3117 are not in COFF, such as short data, etc. */
3118 if (symbol_type == st_Nil)
3119 {
3120 symbol_type = map_coff_sym_type[arg_number];
3121 storage_class = map_coff_storage [arg_number];
3122 }
3123 break;
3124 }
3125
3126 else if (len == sizeof (".size")-1
3127 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3128 && arg_was_number)
3129 {
3130 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3131
3132 *t_ptr = arg_number;
3133 while (*arg_end_p1 == ',' && arg_was_number)
3134 {
3135 arg_start = arg_end_p1+1;
3136 ch = *arg_start;
3137 while (ch == ' ' || ch == '\t')
3138 ch = *++arg_start;
3139
3140 arg_was_number = 0;
3141 if (isdigit (ch) || ch == '-' || ch == '+')
3142 {
3143 int ch2;
3144 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3145 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3146 arg_was_number++;
3147
3148 if (t_ptr == &temp_array[0])
3149 {
3150 error_line = __LINE__;
3151 saber_stop ();
3152 goto bomb_out;
3153 }
3154
3155 *--t_ptr = arg_number;
3156 }
3157 }
3158
3159 /* Reverse order of sizes. */
3160 while (t_ptr <= &temp_array[ N_TQ-1 ])
3161 {
3162 if (t.num_sizes >= N_TQ-1)
3163 {
3164 error_line = __LINE__;
3165 saber_stop ();
3166 goto bomb_out;
3167 }
3168
3169 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3170 }
3171 break;
3172 }
3173
3174 else
3175 {
3176 error_line = __LINE__;
3177 saber_stop ();
3178 goto bomb_out;
3179 }
3180
3181
3182 case 't':
3183 if (len == sizeof (".type")-1
3184 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3185 && arg_was_number)
3186 {
3187 tq_t *tq_ptr = &t.type_qualifiers[0];
3188
3189 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3190 t.basic_type = map_coff_types [(int)t.orig_type];
3191 for (i = N_TQ-1; i >= 0; i--)
3192 {
3193 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3194 & N_TMASK);
3195
3196 if (dt != (int)DT_NON)
3197 *tq_ptr++ = map_coff_derived_type [dt];
3198 }
3199
3200 /* If this is a function, ignore it, so that we don't get
3201 two entries (one from the .ent, and one for the .def
3202 that precedes it). Save the type information so that
3203 the end block can properly add it after the begin block
3204 index. For MIPS knows what reason, we must strip off
3205 the function type at this point. */
3206 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3207 {
3208 is_function = 1;
3209 tq_ptr[-1] = tq_Nil;
3210 }
3211
3212 break;
3213 }
3214
3215 else if (len == sizeof (".tag")-1
3216 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3217 {
3218 tag_start = arg_start;
3219 tag_end_p1 = arg_end_p1;
3220 break;
3221 }
3222
3223 else
3224 {
3225 error_line = __LINE__;
3226 saber_stop ();
3227 goto bomb_out;
3228 }
3229
3230
3231 case 'v':
3232 if (len == sizeof (".val")-1
3233 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3234 {
3235 if (arg_was_number)
3236 value = arg_number;
3237
3238 /* If the value is not an integer value, it must be the
3239 name of a static or global item. Look up the name in
3240 the original symbol table to pick up the storage
3241 class, symbol type, etc. */
3242 else
3243 {
3244 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3245 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3246
3247 ext_hash_ptr = hash_string (arg_start,
3248 arg_end_p1 - arg_start,
3249 &ext_str_hash[0],
3250 (symint_t *) 0);
3251
3252 if (ext_hash_ptr != (shash_t *) 0
3253 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3254 eptr = ext_hash_ptr->esym_ptr;
3255
3256 orig_hash_ptr = hash_string (arg_start,
3257 arg_end_p1 - arg_start,
3258 &orig_str_hash[0],
3259 (symint_t *) 0);
3260
3261 if ((orig_hash_ptr == (shash_t *) 0
3262 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3263 && eptr == (EXTR *) 0)
3264 {
3265 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3266 arg_end_p1 - arg_start,
3267 arg_start);
3268 value = 0;
3269 }
3270 else
3271 {
3272 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3273 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3274 ? orig_hash_ptr->sym_ptr
3275 : &eptr->asym;
3276
3277 symbol_type = (st_t) ptr->st;
3278 storage_class = (sc_t) ptr->sc;
3279 value = ptr->value;
3280 }
3281 }
3282 break;
3283 }
3284 else
3285 {
3286 error_line = __LINE__;
3287 saber_stop ();
3288 goto bomb_out;
3289 }
3290 }
3291
3292 /* Set up to find next directive. */
3293 dir_start = arg_end_p1 + 1;
3294 }
3295
3296
3297 if (storage_class == sc_Bits)
3298 {
3299 t.bitfield = 1;
3300 t.extra_sizes = 1;
3301 }
3302 else
3303 t.extra_sizes = 0;
3304
3305 if (t.num_dims > 0)
3306 {
3307 int num_real_sizes = t.num_sizes - t.extra_sizes;
3308 int diff = t.num_dims - num_real_sizes;
3309 int i = t.num_dims - 1;
3310 int j;
3311
3312 if (num_real_sizes != 1 || diff < 0)
3313 {
3314 error_line = __LINE__;
3315 saber_stop ();
3316 goto bomb_out;
3317 }
3318
3319 /* If this is an array, make sure the same number of dimensions
3320 and sizes were passed, creating extra sizes for multiply
3321 dimensioned arrays if not passed. */
3322
3323 if (diff)
3324 {
3325 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3326 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3327
3328 t.num_sizes = i + 1;
3329 for ( i--; i >= 0; i-- )
3330 {
3331 if (t.dimensions[ i+1 ])
3332 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3333 else
3334 t.sizes[ i ] = t.sizes[ i+1 ];
3335 }
3336 }
3337 }
3338
3339 /* Except for enumeration members & begin/ending of scopes, put the
3340 type word in the aux. symbol table. */
3341
3342 if (symbol_type == st_Block || symbol_type == st_End)
3343 indx = 0;
3344
3345 else if (inside_enumeration)
3346 indx = cur_file_ptr->void_type;
3347
3348 else
3349 {
3350 if (t.basic_type == bt_Struct
3351 || t.basic_type == bt_Union
3352 || t.basic_type == bt_Enum)
3353 {
3354 if (tag_start == (char *) 0)
3355 {
3356 error ("No tag specified for %.*s",
3357 name_end_p1 - name_start,
3358 name_start);
3359 return;
3360 }
3361
3362 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3363 t.basic_type);
3364 }
3365
3366 if (is_function)
3367 {
3368 last_func_type_info = t;
3369 last_func_eptr = eptr;
3370 return;
3371 }
3372
3373 indx = add_aux_sym_tir (&t,
3374 hash_yes,
3375 &cur_file_ptr->thash_head[0]);
3376 }
3377
3378
3379 /* If this is an external or static symbol, update the appropriate
3380 external symbol. */
3381
3382 if (eptr != (EXTR *) 0
3383 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3384 {
3385 eptr->ifd = cur_file_ptr->file_index;
3386 eptr->asym.index = indx;
3387 }
3388
3389
3390 /* Do any last minute adjustments that are necessary. */
3391 switch (symbol_type)
3392 {
3393 default:
3394 break;
3395
3396
3397 /* For the beginning of structs, unions, and enumerations, the
3398 size info needs to be passed in the value field. */
3399
3400 case st_Block:
3401 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3402 {
3403 error_line = __LINE__;
3404 saber_stop ();
3405 goto bomb_out;
3406 }
3407
3408 else
3409 value = t.sizes[0];
3410
3411 inside_enumeration = (t.orig_type == T_ENUM);
3412 break;
3413
3414
3415 /* For the end of structs, unions, and enumerations, omit the
3416 name which is always ".eos". This needs to be done last, so
3417 that any error reporting above gives the correct name. */
3418
3419 case st_End:
3420 name_start = name_end_p1 = (const char *) 0;
3421 value = inside_enumeration = 0;
3422 break;
3423
3424
3425 /* Members of structures and unions that aren't bitfields, need
3426 to adjust the value from a byte offset to a bit offset.
3427 Members of enumerations do not have the value adjusted, and
3428 can be distinguished by indx == indexNil. For enumerations,
3429 update the maximum enumeration value. */
3430
3431 case st_Member:
3432 if (!t.bitfield && !inside_enumeration)
3433 value *= 8;
3434
3435 break;
3436 }
3437
3438
3439 /* Add the symbol, except for global symbols outside of functions,
3440 for which the external symbol table is fine enough. */
3441
3442 if (eptr == (EXTR *) 0
3443 || eptr->asym.st == (int)st_Nil
3444 || cur_proc_ptr != (PDR *) 0)
3445 {
3446 symint_t isym = add_local_symbol (name_start, name_end_p1,
3447 symbol_type, storage_class,
3448 value,
3449 indx);
3450
3451 /* deal with struct, union, and enum tags. */
3452 if (symbol_type == st_Block)
3453 {
3454 /* Create or update the tag information. */
3455 tag_t *tag_ptr = get_tag (name_start,
3456 name_end_p1,
3457 isym,
3458 t.basic_type);
3459
3460 /* If there are any forward references, fill in the appropriate
3461 file and symbol indexes. */
3462
3463 symint_t file_index = cur_file_ptr->file_index;
3464 forward_t *f_next = tag_ptr->forward_ref;
3465 forward_t *f_cur;
3466
3467 while (f_next != (forward_t *) 0)
3468 {
3469 f_cur = f_next;
3470 f_next = f_next->next;
3471
3472 f_cur->ifd_ptr->isym = file_index;
3473 f_cur->index_ptr->rndx.index = isym;
3474
3475 free_forward (f_cur);
3476 }
3477
3478 tag_ptr->forward_ref = (forward_t *) 0;
3479 }
3480 }
3481
3482 /* Normal return */
3483 return;
3484
3485 /* Error return, issue message. */
3486 bomb_out:
3487 if (error_line)
3488 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3489 else
3490 error ("compiler error, badly formed #.def");
3491
3492 return;
3493 }
3494
3495 \f
3496 /* Parse .end directives. */
3497
3498 STATIC void
3499 parse_end (start)
3500 const char *start; /* start of directive */
3501 {
3502 register const char *start_func, *end_func_p1;
3503 register int ch;
3504 register symint_t value;
3505 register FDR *orig_fdr;
3506
3507 if (cur_file_ptr == (efdr_t *) 0)
3508 {
3509 error (".end directive without a preceding .file directive");
3510 return;
3511 }
3512
3513 if (cur_proc_ptr == (PDR *) 0)
3514 {
3515 error (".end directive without a preceding .ent directive");
3516 return;
3517 }
3518
3519 /* Get the function name, skipping whitespace. */
3520 for (start_func = start; isspace (*start_func); start_func++)
3521 ;
3522
3523 ch = *start_func;
3524 if (!IS_ASM_IDENT (ch))
3525 {
3526 error (".end directive has no name");
3527 return;
3528 }
3529
3530 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3531 ;
3532
3533
3534 /* Get the value field for creating the end from the original object
3535 file (which we find by locating the procedure start, and using the
3536 pointer to the end+1 block and backing up. The index points to a
3537 two word aux. symbol, whose first word is the index of the end
3538 symbol, and the second word is the type of the function return
3539 value. */
3540
3541 orig_fdr = cur_file_ptr->orig_fdr;
3542 value = 0;
3543 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3544 value = cur_oproc_end->value;
3545
3546 else
3547 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3548
3549 (void) add_local_symbol (start_func, end_func_p1,
3550 st_End, sc_Text,
3551 value,
3552 (symint_t) 0);
3553
3554 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3555 }
3556
3557 \f
3558 /* Parse .ent directives. */
3559
3560 STATIC void
3561 parse_ent (start)
3562 const char *start; /* start of directive */
3563 {
3564 register const char *start_func, *end_func_p1;
3565 register int ch;
3566
3567 if (cur_file_ptr == (efdr_t *) 0)
3568 {
3569 error (".ent directive without a preceding .file directive");
3570 return;
3571 }
3572
3573 if (cur_proc_ptr != (PDR *) 0)
3574 {
3575 error ("second .ent directive found before .end directive");
3576 return;
3577 }
3578
3579 for (start_func = start; isspace (*start_func); start_func++)
3580 ;
3581
3582 ch = *start_func;
3583 if (!IS_ASM_IDENT (ch))
3584 {
3585 error (".ent directive has no name");
3586 return;
3587 }
3588
3589 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3590 ;
3591
3592 (void) add_procedure (start_func, end_func_p1);
3593 }
3594
3595 \f
3596 /* Parse .file directives. */
3597
3598 STATIC void
3599 parse_file (start)
3600 const char *start; /* start of directive */
3601 {
3602 char *p;
3603 register char *start_name, *end_name_p1;
3604
3605 (void) strtol (start, &p, 0);
3606 if (start == p
3607 || (start_name = local_index (p, '"')) == (char *) 0
3608 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3609 {
3610 error ("Invalid .file directive");
3611 return;
3612 }
3613
3614 if (cur_proc_ptr != (PDR *) 0)
3615 {
3616 error ("No way to handle .file within .ent/.end section");
3617 return;
3618 }
3619
3620 add_file (start_name, end_name_p1);
3621 }
3622
3623 \f
3624 /* Make sure the @stabs symbol is emitted. */
3625
3626 static void
3627 mark_stabs (start)
3628 const char *start; /* Start of directive (ignored) */
3629 {
3630 if (!stabs_seen)
3631 {
3632 /* Add a dummy @stabs symbol. */
3633 stabs_seen = 1;
3634 (void) add_local_symbol (stabs_symbol,
3635 stabs_symbol + sizeof (stabs_symbol),
3636 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3637
3638 }
3639 }
3640
3641 \f
3642 /* Parse .stabs directives.
3643
3644 .stabs directives have five fields:
3645 "string" a string, encoding the type information.
3646 code a numeric code, defined in <stab.h>
3647 0 a zero
3648 0 a zero or line number
3649 value a numeric value or an address.
3650
3651 If the value is relocatable, we transform this into:
3652 iss points as an index into string space
3653 value value from lookup of the name
3654 st st from lookup of the name
3655 sc sc from lookup of the name
3656 index code|CODE_MASK
3657
3658 If the value is not relocatable, we transform this into:
3659 iss points as an index into string space
3660 value value
3661 st st_Nil
3662 sc sc_Nil
3663 index code|CODE_MASK
3664
3665 .stabn directives have four fields (string is null):
3666 code a numeric code, defined in <stab.h>
3667 0 a zero
3668 0 a zero or a line number
3669 value a numeric value or an address. */
3670
3671 STATIC void
3672 parse_stabs_common (string_start, string_end, rest)
3673 const char *string_start; /* start of string or NULL */
3674 const char *string_end; /* end+1 of string or NULL */
3675 const char *rest; /* rest of the directive. */
3676 {
3677 efdr_t *save_file_ptr = cur_file_ptr;
3678 symint_t code;
3679 symint_t value;
3680 char *p;
3681 st_t st;
3682 sc_t sc;
3683 int ch;
3684
3685 if (stabs_seen == 0)
3686 mark_stabs ("");
3687
3688 /* Read code from stabs. */
3689 if (!isdigit (*rest))
3690 {
3691 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3692 return;
3693 }
3694
3695 code = strtol (rest, &p, 0);
3696
3697 /* Line number stabs are handled differently, since they have two values,
3698 the line number and the address of the label. We use the index field
3699 (aka code) to hold the line number, and the value field to hold the
3700 address. The symbol type is st_Label, which should be different from
3701 the other stabs, so that gdb can recognize it. */
3702
3703 if (code == (int)N_SLINE)
3704 {
3705 SYMR *sym_ptr, dummy_symr;
3706 shash_t *shash_ptr;
3707
3708 /* Skip ,0, */
3709 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3710 {
3711 error ("Invalid line number .stabs/.stabn directive");
3712 return;
3713 }
3714
3715 code = strtol (p+3, &p, 0);
3716 ch = *++p;
3717 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3718 {
3719 error ("Invalid line number .stabs/.stabn directive");
3720 return;
3721 }
3722
3723 dummy_symr.index = code;
3724 if (dummy_symr.index != code)
3725 {
3726 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3727 code);
3728
3729 return;
3730 }
3731
3732 shash_ptr = hash_string (p,
3733 strlen (p) - 1,
3734 &orig_str_hash[0],
3735 (symint_t *) 0);
3736
3737 if (shash_ptr == (shash_t *) 0
3738 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3739 {
3740 error ("Invalid .stabs/.stabn directive, value not found");
3741 return;
3742 }
3743
3744 if ((st_t) sym_ptr->st != st_Label)
3745 {
3746 error ("Invalid line number .stabs/.stabn directive");
3747 return;
3748 }
3749
3750 st = st_Label;
3751 sc = (sc_t) sym_ptr->sc;
3752 value = sym_ptr->value;
3753 }
3754 else
3755 {
3756 /* Skip ,<num>,<num>, */
3757 if (*p++ != ',')
3758 goto failure;
3759 for (; isdigit (*p); p++)
3760 ;
3761 if (*p++ != ',')
3762 goto failure;
3763 for (; isdigit (*p); p++)
3764 ;
3765 if (*p++ != ',')
3766 goto failure;
3767 ch = *p;
3768 if (!IS_ASM_IDENT (ch) && ch != '-')
3769 {
3770 failure:
3771 error ("Invalid .stabs/.stabn directive, bad character");
3772 return;
3773 }
3774
3775 if (isdigit (ch) || ch == '-')
3776 {
3777 st = st_Nil;
3778 sc = sc_Nil;
3779 value = strtol (p, &p, 0);
3780 if (*p != '\n')
3781 {
3782 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3783 return;
3784 }
3785 }
3786 else if (!IS_ASM_IDENT (ch))
3787 {
3788 error ("Invalid .stabs/.stabn directive, bad character");
3789 return;
3790 }
3791 else
3792 {
3793 SYMR *sym_ptr;
3794 shash_t *shash_ptr;
3795 const char *start, *end_p1;
3796
3797 start = p;
3798 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3799 {
3800 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3801 end_p1 = start + strlen(start) - 1;
3802 }
3803
3804 shash_ptr = hash_string (start,
3805 end_p1 - start,
3806 &orig_str_hash[0],
3807 (symint_t *) 0);
3808
3809 if (shash_ptr == (shash_t *) 0
3810 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3811 {
3812 shash_ptr = hash_string (start,
3813 end_p1 - start,
3814 &ext_str_hash[0],
3815 (symint_t *) 0);
3816
3817 if (shash_ptr == (shash_t *) 0
3818 || shash_ptr->esym_ptr == (EXTR *) 0)
3819 {
3820 error ("Invalid .stabs/.stabn directive, value not found");
3821 return;
3822 }
3823 else
3824 sym_ptr = &(shash_ptr->esym_ptr->asym);
3825 }
3826
3827 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3828 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3829 {
3830 sc = scNil;
3831 st = stNil;
3832 }
3833 else
3834 {
3835 sc = (sc_t) sym_ptr->sc;
3836 st = (st_t) sym_ptr->st;
3837 }
3838 value = sym_ptr->value;
3839
3840 ch = *end_p1++;
3841 if (ch != '\n')
3842 {
3843 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3844 || ((ch != '+') && (ch != '-')))
3845 {
3846 error ("Invalid .stabs/.stabn directive, badly formed value");
3847 return;
3848 }
3849 if (ch == '+')
3850 value += strtol (end_p1, &p, 0);
3851 else if (ch == '-')
3852 value -= strtol (end_p1, &p, 0);
3853
3854 if (*p != '\n')
3855 {
3856 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3857 return;
3858 }
3859 }
3860 }
3861 code = MIPS_MARK_STAB(code);
3862 }
3863
3864 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3865 /* Restore normal file type. */
3866 cur_file_ptr = save_file_ptr;
3867 }
3868
3869
3870 STATIC void
3871 parse_stabs (start)
3872 const char *start; /* start of directive */
3873 {
3874 const char *end = local_index (start+1, '"');
3875
3876 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3877 {
3878 error ("Invalid .stabs directive, no string");
3879 return;
3880 }
3881
3882 parse_stabs_common (start+1, end, end+2);
3883 }
3884
3885
3886 STATIC void
3887 parse_stabn (start)
3888 const char *start; /* start of directive */
3889 {
3890 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3891 }
3892
3893 \f
3894 /* Parse the input file, and write the lines to the output file
3895 if needed. */
3896
3897 STATIC void
3898 parse_input __proto((void))
3899 {
3900 register char *p;
3901 register int i;
3902 register thead_t *ptag_head;
3903 register tag_t *ptag;
3904 register tag_t *ptag_next;
3905
3906 if (debug)
3907 fprintf (stderr, "\tinput\n");
3908
3909 /* Add a dummy scope block around the entire compilation unit for
3910 structures defined outside of blocks. */
3911 ptag_head = allocate_thead ();
3912 ptag_head->first_tag = 0;
3913 ptag_head->prev = cur_tag_head;
3914 cur_tag_head = ptag_head;
3915
3916 while ((p = read_line ()) != (char *) 0)
3917 {
3918 /* Skip leading blanks */
3919 while (isspace (*p))
3920 p++;
3921
3922 /* See if it's a directive we handle. If so, dispatch handler. */
3923 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3924 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3925 && isspace (p[pseudo_ops[i].len]))
3926 {
3927 p += pseudo_ops[i].len; /* skip to first argument */
3928 while (isspace (*p))
3929 p++;
3930
3931 (*pseudo_ops[i].func)( p );
3932 break;
3933 }
3934 }
3935
3936 /* Process any tags at global level. */
3937 ptag_head = cur_tag_head;
3938 cur_tag_head = ptag_head->prev;
3939
3940 for (ptag = ptag_head->first_tag;
3941 ptag != (tag_t *) 0;
3942 ptag = ptag_next)
3943 {
3944 if (ptag->forward_ref != (forward_t *) 0)
3945 add_unknown_tag (ptag);
3946
3947 ptag_next = ptag->same_block;
3948 ptag->hash_ptr->tag_ptr = ptag->same_name;
3949 free_tag (ptag);
3950 }
3951
3952 free_thead (ptag_head);
3953
3954 }
3955
3956 \f
3957 /* Update the global headers with the final offsets in preparation
3958 to write out the .T file. */
3959
3960 STATIC void
3961 update_headers __proto((void))
3962 {
3963 register symint_t i;
3964 register efdr_t *file_ptr;
3965
3966 /* Set up the symbolic header. */
3967 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3968 symbolic_header.magic = orig_sym_hdr.magic;
3969 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3970
3971 /* Set up global counts. */
3972 symbolic_header.issExtMax = ext_strings.num_allocated;
3973 symbolic_header.idnMax = dense_num.num_allocated;
3974 symbolic_header.ifdMax = file_desc.num_allocated;
3975 symbolic_header.iextMax = ext_symbols.num_allocated;
3976 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3977 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3978 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3979 symbolic_header.crfd = orig_sym_hdr.crfd;
3980
3981
3982 /* Loop through each file, figuring out how many local syms,
3983 line numbers, etc. there are. Also, put out end symbol
3984 for the filename. */
3985
3986 for (file_ptr = first_file;
3987 file_ptr != (efdr_t *) 0;
3988 file_ptr = file_ptr->next_file)
3989 {
3990 register SYMR *sym_start;
3991 register SYMR *sym;
3992 register SYMR *sym_end_p1;
3993 register FDR *fd_ptr = file_ptr->orig_fdr;
3994
3995 cur_file_ptr = file_ptr;
3996
3997 /* Copy st_Static symbols from the original local symbol table if
3998 they did not get added to the new local symbol table.
3999 This happens with stabs-in-ecoff or if the source file is
4000 compiled without debugging. */
4001 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4002 sym_end_p1 = sym_start + fd_ptr->csym;
4003 for (sym = sym_start; sym < sym_end_p1; sym++)
4004 {
4005 if ((st_t)sym->st == st_Static)
4006 {
4007 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4008 register Size_t len = strlen (str);
4009 register shash_t *hash_ptr;
4010
4011 /* Ignore internal labels. */
4012 if (str[0] == '$' && str[1] == 'L')
4013 continue;
4014 hash_ptr = hash_string (str,
4015 (Ptrdiff_t)len,
4016 &file_ptr->shash_head[0],
4017 (symint_t *) 0);
4018 if (hash_ptr == (shash_t *) 0)
4019 {
4020 (void) add_local_symbol (str, str + len,
4021 (st_t)sym->st, (sc_t)sym->sc,
4022 (symint_t)sym->value,
4023 (symint_t)indexNil);
4024 }
4025 }
4026 }
4027 (void) add_local_symbol ((const char *) 0, (const char *) 0,
4028 st_End, sc_Text,
4029 (symint_t) 0,
4030 (symint_t) 0);
4031
4032 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4033 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4034 symbolic_header.ipdMax += file_ptr->fdr.cpd;
4035
4036 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4037 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4038 symbolic_header.isymMax += file_ptr->fdr.csym;
4039
4040 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4041 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4042 symbolic_header.iauxMax += file_ptr->fdr.caux;
4043
4044 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4045 file_ptr->fdr.issBase = symbolic_header.issMax;
4046 symbolic_header.issMax += file_ptr->fdr.cbSs;
4047 }
4048
4049 #ifndef ALIGN_SYMTABLE_OFFSET
4050 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4051 #endif
4052
4053 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4054 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4055 if (i > 0)
4056 {
4057 symbolic_header.cbLineOffset = file_offset;
4058 file_offset += i;
4059 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4060 }
4061
4062 i = symbolic_header.ioptMax; /* optimization symbols */
4063 if (((long) i) > 0)
4064 {
4065 symbolic_header.cbOptOffset = file_offset;
4066 file_offset += i * sizeof (OPTR);
4067 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4068 }
4069
4070 i = symbolic_header.idnMax; /* dense numbers */
4071 if (i > 0)
4072 {
4073 symbolic_header.cbDnOffset = file_offset;
4074 file_offset += i * sizeof (DNR);
4075 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4076 }
4077
4078 i = symbolic_header.ipdMax; /* procedure tables */
4079 if (i > 0)
4080 {
4081 symbolic_header.cbPdOffset = file_offset;
4082 file_offset += i * sizeof (PDR);
4083 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4084 }
4085
4086 i = symbolic_header.isymMax; /* local symbols */
4087 if (i > 0)
4088 {
4089 symbolic_header.cbSymOffset = file_offset;
4090 file_offset += i * sizeof (SYMR);
4091 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4092 }
4093
4094 i = symbolic_header.iauxMax; /* aux syms. */
4095 if (i > 0)
4096 {
4097 symbolic_header.cbAuxOffset = file_offset;
4098 file_offset += i * sizeof (TIR);
4099 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4100 }
4101
4102 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4103 if (i > 0)
4104 {
4105 symbolic_header.cbSsOffset = file_offset;
4106 file_offset += i;
4107 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4108 }
4109
4110 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4111 if (i > 0)
4112 {
4113 symbolic_header.cbSsExtOffset = file_offset;
4114 file_offset += i;
4115 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4116 }
4117
4118 i = symbolic_header.ifdMax; /* file tables */
4119 if (i > 0)
4120 {
4121 symbolic_header.cbFdOffset = file_offset;
4122 file_offset += i * sizeof (FDR);
4123 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4124 }
4125
4126 i = symbolic_header.crfd; /* relative file descriptors */
4127 if (i > 0)
4128 {
4129 symbolic_header.cbRfdOffset = file_offset;
4130 file_offset += i * sizeof (symint_t);
4131 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4132 }
4133
4134 i = symbolic_header.iextMax; /* external symbols */
4135 if (i > 0)
4136 {
4137 symbolic_header.cbExtOffset = file_offset;
4138 file_offset += i * sizeof (EXTR);
4139 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4140 }
4141 }
4142
4143 \f
4144 /* Write out a varray at a given location. */
4145
4146 STATIC void
4147 write_varray (vp, offset, str)
4148 varray_t *vp; /* virtual array */
4149 off_t offset; /* offset to write varray to */
4150 const char *str; /* string to print out when tracing */
4151 {
4152 int num_write, sys_write;
4153 vlinks_t *ptr;
4154
4155 if (vp->num_allocated == 0)
4156 return;
4157
4158 if (debug)
4159 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4160 vp, offset, vp->num_allocated * vp->object_size, str);
4161
4162 if (file_offset != offset
4163 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4164 pfatal_with_name (object_name);
4165
4166 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4167 {
4168 num_write = (ptr->next == (vlinks_t *) 0)
4169 ? vp->objects_last_page * vp->object_size
4170 : vp->objects_per_page * vp->object_size;
4171
4172 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4173 if (sys_write <= 0)
4174 pfatal_with_name (object_name);
4175
4176 else if (sys_write != num_write)
4177 fatal ("Wrote %d bytes to %s, system returned %d",
4178 num_write,
4179 object_name,
4180 sys_write);
4181
4182 file_offset += num_write;
4183 }
4184 }
4185
4186 \f
4187 /* Write out the symbol table in the object file. */
4188
4189 STATIC void
4190 write_object __proto((void))
4191 {
4192 int sys_write;
4193 efdr_t *file_ptr;
4194 off_t offset;
4195
4196 if (debug)
4197 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4198 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4199 "symbolic header");
4200
4201 sys_write = fwrite ((PTR_T) &symbolic_header,
4202 1,
4203 sizeof (symbolic_header),
4204 object_stream);
4205
4206 if (sys_write < 0)
4207 pfatal_with_name (object_name);
4208
4209 else if (sys_write != sizeof (symbolic_header))
4210 fatal ("Wrote %d bytes to %s, system returned %d",
4211 sizeof (symbolic_header),
4212 object_name,
4213 sys_write);
4214
4215
4216 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4217
4218 if (symbolic_header.cbLine > 0) /* line numbers */
4219 {
4220 long sys_write;
4221
4222 if (file_offset != symbolic_header.cbLineOffset
4223 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4224 pfatal_with_name (object_name);
4225
4226 if (debug)
4227 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4228 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4229 symbolic_header.cbLine, "Line numbers");
4230
4231 sys_write = fwrite ((PTR_T) orig_linenum,
4232 1,
4233 symbolic_header.cbLine,
4234 object_stream);
4235
4236 if (sys_write <= 0)
4237 pfatal_with_name (object_name);
4238
4239 else if (sys_write != symbolic_header.cbLine)
4240 fatal ("Wrote %d bytes to %s, system returned %d",
4241 symbolic_header.cbLine,
4242 object_name,
4243 sys_write);
4244
4245 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4246 }
4247
4248 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4249 {
4250 long sys_write;
4251 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4252
4253 if (file_offset != symbolic_header.cbOptOffset
4254 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4255 pfatal_with_name (object_name);
4256
4257 if (debug)
4258 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4259 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4260 num_write, "Optimizer symbols");
4261
4262 sys_write = fwrite ((PTR_T) orig_opt_syms,
4263 1,
4264 num_write,
4265 object_stream);
4266
4267 if (sys_write <= 0)
4268 pfatal_with_name (object_name);
4269
4270 else if (sys_write != num_write)
4271 fatal ("Wrote %d bytes to %s, system returned %d",
4272 num_write,
4273 object_name,
4274 sys_write);
4275
4276 file_offset = symbolic_header.cbOptOffset + num_write;
4277 }
4278
4279 if (symbolic_header.idnMax > 0) /* dense numbers */
4280 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4281
4282 if (symbolic_header.ipdMax > 0) /* procedure tables */
4283 {
4284 offset = symbolic_header.cbPdOffset;
4285 for (file_ptr = first_file;
4286 file_ptr != (efdr_t *) 0;
4287 file_ptr = file_ptr->next_file)
4288 {
4289 write_varray (&file_ptr->procs, offset, "Procedure tables");
4290 offset = file_offset;
4291 }
4292 }
4293
4294 if (symbolic_header.isymMax > 0) /* local symbols */
4295 {
4296 offset = symbolic_header.cbSymOffset;
4297 for (file_ptr = first_file;
4298 file_ptr != (efdr_t *) 0;
4299 file_ptr = file_ptr->next_file)
4300 {
4301 write_varray (&file_ptr->symbols, offset, "Local symbols");
4302 offset = file_offset;
4303 }
4304 }
4305
4306 if (symbolic_header.iauxMax > 0) /* aux symbols */
4307 {
4308 offset = symbolic_header.cbAuxOffset;
4309 for (file_ptr = first_file;
4310 file_ptr != (efdr_t *) 0;
4311 file_ptr = file_ptr->next_file)
4312 {
4313 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4314 offset = file_offset;
4315 }
4316 }
4317
4318 if (symbolic_header.issMax > 0) /* local strings */
4319 {
4320 offset = symbolic_header.cbSsOffset;
4321 for (file_ptr = first_file;
4322 file_ptr != (efdr_t *) 0;
4323 file_ptr = file_ptr->next_file)
4324 {
4325 write_varray (&file_ptr->strings, offset, "Local strings");
4326 offset = file_offset;
4327 }
4328 }
4329
4330 if (symbolic_header.issExtMax > 0) /* external strings */
4331 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4332
4333 if (symbolic_header.ifdMax > 0) /* file tables */
4334 {
4335 offset = symbolic_header.cbFdOffset;
4336 if (file_offset != offset
4337 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4338 pfatal_with_name (object_name);
4339
4340 file_offset = offset;
4341 for (file_ptr = first_file;
4342 file_ptr != (efdr_t *) 0;
4343 file_ptr = file_ptr->next_file)
4344 {
4345 if (debug)
4346 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4347 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4348
4349 sys_write = fwrite (&file_ptr->fdr,
4350 1,
4351 sizeof (FDR),
4352 object_stream);
4353
4354 if (sys_write < 0)
4355 pfatal_with_name (object_name);
4356
4357 else if (sys_write != sizeof (FDR))
4358 fatal ("Wrote %d bytes to %s, system returned %d",
4359 sizeof (FDR),
4360 object_name,
4361 sys_write);
4362
4363 file_offset = offset += sizeof (FDR);
4364 }
4365 }
4366
4367 if (symbolic_header.crfd > 0) /* relative file descriptors */
4368 {
4369 long sys_write;
4370 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4371
4372 if (file_offset != symbolic_header.cbRfdOffset
4373 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4374 pfatal_with_name (object_name);
4375
4376 if (debug)
4377 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4378 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4379 num_write, "Relative file descriptors");
4380
4381 sys_write = fwrite (orig_rfds,
4382 1,
4383 num_write,
4384 object_stream);
4385
4386 if (sys_write <= 0)
4387 pfatal_with_name (object_name);
4388
4389 else if (sys_write != num_write)
4390 fatal ("Wrote %d bytes to %s, system returned %d",
4391 num_write,
4392 object_name,
4393 sys_write);
4394
4395 file_offset = symbolic_header.cbRfdOffset + num_write;
4396 }
4397
4398 if (symbolic_header.issExtMax > 0) /* external symbols */
4399 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4400
4401 if (fclose (object_stream) != 0)
4402 pfatal_with_name (object_name);
4403 }
4404
4405 \f
4406 /* Read some bytes at a specified location, and return a pointer. */
4407
4408 STATIC page_t *
4409 read_seek (size, offset, str)
4410 Size_t size; /* # bytes to read */
4411 off_t offset; /* offset to read at */
4412 const char *str; /* name for tracing */
4413 {
4414 page_t *ptr;
4415 long sys_read = 0;
4416
4417 if (size == 0) /* nothing to read */
4418 return (page_t *) 0;
4419
4420 if (debug)
4421 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4422 size, offset, file_offset, str);
4423
4424 #ifndef MALLOC_CHECK
4425 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4426 #else
4427 ptr = (page_t *) xcalloc (1, size);
4428 #endif
4429
4430 /* If we need to seek, and the distance is nearby, just do some reads,
4431 to speed things up. */
4432 if (file_offset != offset)
4433 {
4434 symint_t difference = offset - file_offset;
4435
4436 if (difference < 8)
4437 {
4438 char small_buffer[8];
4439
4440 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4441 if (sys_read <= 0)
4442 pfatal_with_name (obj_in_name);
4443
4444 if (sys_read != difference)
4445 fatal ("Wanted to read %d bytes from %s, system returned %d",
4446 size,
4447 obj_in_name,
4448 sys_read);
4449 }
4450 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4451 pfatal_with_name (obj_in_name);
4452 }
4453
4454 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4455 if (sys_read <= 0)
4456 pfatal_with_name (obj_in_name);
4457
4458 if (sys_read != size)
4459 fatal ("Wanted to read %d bytes from %s, system returned %d",
4460 size,
4461 obj_in_name,
4462 sys_read);
4463
4464 file_offset = offset + size;
4465
4466 if (file_offset > max_file_offset)
4467 max_file_offset = file_offset;
4468
4469 return ptr;
4470 }
4471
4472 \f
4473 /* Read the existing object file (and copy to the output object file
4474 if it is different from the input object file), and remove the old
4475 symbol table. */
4476
4477 STATIC void
4478 copy_object __proto((void))
4479 {
4480 char buffer[ PAGE_SIZE ];
4481 register int sys_read;
4482 register int remaining;
4483 register int num_write;
4484 register int sys_write;
4485 register int fd, es;
4486 register int delete_ifd = 0;
4487 register int *remap_file_number;
4488 struct stat stat_buf;
4489
4490 if (debug)
4491 fprintf (stderr, "\tcopy\n");
4492
4493 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4494 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4495 pfatal_with_name (obj_in_name);
4496
4497 sys_read = fread ((PTR_T) &orig_file_header,
4498 1,
4499 sizeof (struct filehdr),
4500 obj_in_stream);
4501
4502 if (sys_read < 0)
4503 pfatal_with_name (obj_in_name);
4504
4505 else if (sys_read == 0 && feof (obj_in_stream))
4506 return; /* create a .T file sans file header */
4507
4508 else if (sys_read < sizeof (struct filehdr))
4509 fatal ("Wanted to read %d bytes from %s, system returned %d",
4510 sizeof (struct filehdr),
4511 obj_in_name,
4512 sys_read);
4513
4514
4515 if (orig_file_header.f_nsyms != sizeof (HDRR))
4516 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4517 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4518
4519
4520 /* Read in the current symbolic header. */
4521 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4522 pfatal_with_name (input_name);
4523
4524 sys_read = fread ((PTR_T) &orig_sym_hdr,
4525 1,
4526 sizeof (orig_sym_hdr),
4527 obj_in_stream);
4528
4529 if (sys_read < 0)
4530 pfatal_with_name (object_name);
4531
4532 else if (sys_read < sizeof (struct filehdr))
4533 fatal ("Wanted to read %d bytes from %s, system returned %d",
4534 sizeof (struct filehdr),
4535 obj_in_name,
4536 sys_read);
4537
4538
4539 /* Read in each of the sections if they exist in the object file.
4540 We read things in in the order the mips assembler creates the
4541 sections, so in theory no extra seeks are done.
4542
4543 For simplicity sake, round each read up to a page boundary,
4544 we may want to revisit this later.... */
4545
4546 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4547
4548 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4549 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4550 orig_sym_hdr.cbLineOffset,
4551 "Line numbers");
4552
4553 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4554 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4555 orig_sym_hdr.cbPdOffset,
4556 "Procedure tables");
4557
4558 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4559 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4560 orig_sym_hdr.cbSymOffset,
4561 "Local symbols");
4562
4563 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4564 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4565 orig_sym_hdr.cbAuxOffset,
4566 "Aux. symbols");
4567
4568 if (orig_sym_hdr.issMax > 0) /* local strings */
4569 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4570 orig_sym_hdr.cbSsOffset,
4571 "Local strings");
4572
4573 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4574 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4575 orig_sym_hdr.cbSsExtOffset,
4576 "External strings");
4577
4578 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4579 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4580 orig_sym_hdr.cbFdOffset,
4581 "File tables");
4582
4583 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4584 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4585 orig_sym_hdr.cbRfdOffset,
4586 "Relative file descriptors");
4587
4588 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4589 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4590 orig_sym_hdr.cbExtOffset,
4591 "External symbols");
4592
4593 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4594 {
4595 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4596 orig_sym_hdr.cbDnOffset,
4597 "Dense numbers");
4598
4599 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4600 }
4601
4602 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4603 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4604 orig_sym_hdr.cbOptOffset,
4605 "Optimizer symbols");
4606
4607
4608
4609 /* Abort if the symbol table is not last. */
4610 if (max_file_offset != stat_buf.st_size)
4611 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4612 max_file_offset,
4613 stat_buf.st_size);
4614
4615
4616 /* If the first original file descriptor is a dummy which the assembler
4617 put out, but there are no symbols in it, skip it now. */
4618 if (orig_sym_hdr.ifdMax > 1
4619 && orig_files->csym == 2
4620 && orig_files->caux == 0)
4621 {
4622 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4623 char *suffix = local_rindex (filename, '.');
4624
4625 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4626 delete_ifd = 1;
4627 }
4628
4629
4630 /* Create array to map original file numbers to the new file numbers
4631 (in case there are duplicate filenames, we collapse them into one
4632 file section, the MIPS assembler may or may not collapse them). */
4633
4634 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4635
4636 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4637 {
4638 register FDR *fd_ptr = ORIG_FILES (fd);
4639 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4640
4641 /* file support itself. */
4642 add_file (filename, filename + strlen (filename));
4643 remap_file_number[fd] = cur_file_ptr->file_index;
4644 }
4645
4646 if (delete_ifd > 0) /* just in case */
4647 remap_file_number[0] = remap_file_number[1];
4648
4649
4650 /* Loop, adding each of the external symbols. These must be in
4651 order or otherwise we would have to change the relocation
4652 entries. We don't just call add_bytes, because we need to have
4653 the names put into the external hash table. We set the type to
4654 'void' for now, and parse_def will fill in the correct type if it
4655 is in the symbol table. We must add the external symbols before
4656 the locals, since the locals do lookups against the externals. */
4657
4658 if (debug)
4659 fprintf (stderr, "\tehash\n");
4660
4661 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4662 {
4663 register EXTR *eptr = orig_ext_syms + es;
4664 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4665 register unsigned ifd = eptr->ifd;
4666
4667 (void) add_ext_symbol (ename,
4668 ename + strlen (ename),
4669 (st_t) eptr->asym.st,
4670 (sc_t) eptr->asym.sc,
4671 eptr->asym.value,
4672 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4673 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4674 }
4675
4676
4677 /* For each of the files in the object file, copy the symbols, and such
4678 into the varrays for the new object file. */
4679
4680 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4681 {
4682 register FDR *fd_ptr = ORIG_FILES (fd);
4683 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4684 register SYMR *sym_start;
4685 register SYMR *sym;
4686 register SYMR *sym_end_p1;
4687 register PDR *proc_start;
4688 register PDR *proc;
4689 register PDR *proc_end_p1;
4690
4691 /* file support itself. */
4692 add_file (filename, filename + strlen (filename));
4693 cur_file_ptr->orig_fdr = fd_ptr;
4694
4695 /* Copy stuff that's just passed through (such as line #'s) */
4696 cur_file_ptr->fdr.adr = fd_ptr->adr;
4697 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4698 cur_file_ptr->fdr.cline = fd_ptr->cline;
4699 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4700 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4701 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4702 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4703 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4704 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4705 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4706
4707 if (debug)
4708 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4709
4710 /* For each of the static and global symbols defined, add them
4711 to the hash table of original symbols, so we can look up
4712 their values. */
4713
4714 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4715 sym_end_p1 = sym_start + fd_ptr->csym;
4716 for (sym = sym_start; sym < sym_end_p1; sym++)
4717 {
4718 switch ((st_t) sym->st)
4719 {
4720 default:
4721 break;
4722
4723 case st_Global:
4724 case st_Static:
4725 case st_Label:
4726 case st_Proc:
4727 case st_StaticProc:
4728 {
4729 auto symint_t hash_index;
4730 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4731 register Size_t len = strlen (str);
4732 register shash_t *shash_ptr = hash_string (str,
4733 (Ptrdiff_t)len,
4734 &orig_str_hash[0],
4735 &hash_index);
4736
4737 if (shash_ptr != (shash_t *) 0)
4738 error ("internal error, %s is already in original symbol table", str);
4739
4740 else
4741 {
4742 shash_ptr = allocate_shash ();
4743 shash_ptr->next = orig_str_hash[hash_index];
4744 orig_str_hash[hash_index] = shash_ptr;
4745
4746 shash_ptr->len = len;
4747 shash_ptr->indx = indexNil;
4748 shash_ptr->string = str;
4749 shash_ptr->sym_ptr = sym;
4750 }
4751 }
4752 break;
4753
4754 case st_End:
4755 if ((sc_t) sym->sc == sc_Text)
4756 {
4757 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4758
4759 if (*str != '\0')
4760 {
4761 register Size_t len = strlen (str);
4762 register shash_t *shash_ptr = hash_string (str,
4763 (Ptrdiff_t)len,
4764 &orig_str_hash[0],
4765 (symint_t *) 0);
4766
4767 if (shash_ptr != (shash_t *) 0)
4768 shash_ptr->end_ptr = sym;
4769 }
4770 }
4771 break;
4772
4773 }
4774 }
4775
4776 if (debug)
4777 {
4778 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4779 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4780 }
4781
4782 /* Go through each of the procedures in this file, and add the
4783 procedure pointer to the hash entry for the given name. */
4784
4785 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4786 proc_end_p1 = proc_start + fd_ptr->cpd;
4787 for (proc = proc_start; proc < proc_end_p1; proc++)
4788 {
4789 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4790 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4791 register Size_t len = strlen (str);
4792 register shash_t *shash_ptr = hash_string (str,
4793 (Ptrdiff_t)len,
4794 &orig_str_hash[0],
4795 (symint_t *) 0);
4796
4797 if (shash_ptr == (shash_t *) 0)
4798 error ("internal error, function %s is not in original symbol table", str);
4799
4800 else
4801 shash_ptr->proc_ptr = proc;
4802 }
4803
4804 if (debug)
4805 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4806
4807 }
4808 cur_file_ptr = first_file;
4809
4810
4811 /* Copy all of the object file up to the symbol table. Originally
4812 we were going to use ftruncate, but that doesn't seem to work
4813 on Ultrix 3.1.... */
4814
4815 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4816 pfatal_with_name (obj_in_name);
4817
4818 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4819 pfatal_with_name (object_name);
4820
4821 for (remaining = orig_file_header.f_symptr;
4822 remaining > 0;
4823 remaining -= num_write)
4824 {
4825 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4826 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4827 if (sys_read <= 0)
4828 pfatal_with_name (obj_in_name);
4829
4830 else if (sys_read != num_write)
4831 fatal ("Wanted to read %d bytes from %s, system returned %d",
4832 num_write,
4833 obj_in_name,
4834 sys_read);
4835
4836 sys_write = fwrite (buffer, 1, num_write, object_stream);
4837 if (sys_write <= 0)
4838 pfatal_with_name (object_name);
4839
4840 else if (sys_write != num_write)
4841 fatal ("Wrote %d bytes to %s, system returned %d",
4842 num_write,
4843 object_name,
4844 sys_write);
4845 }
4846 }
4847
4848 \f
4849 /* Ye olde main program. */
4850
4851 int
4852 main (argc, argv)
4853 int argc;
4854 char *argv[];
4855 {
4856 int iflag = 0;
4857 char *p = local_rindex (argv[0], '/');
4858 char *num_end;
4859 int option;
4860 int i;
4861
4862 progname = (p != 0) ? p+1 : argv[0];
4863
4864 (void) signal (SIGSEGV, catch_signal);
4865 (void) signal (SIGBUS, catch_signal);
4866 (void) signal (SIGABRT, catch_signal);
4867
4868 #if !defined(__SABER__) && !defined(lint)
4869 if (sizeof (efdr_t) > PAGE_USIZE)
4870 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4871 sizeof (efdr_t),
4872 PAGE_USIZE);
4873
4874 if (sizeof (page_t) != PAGE_USIZE)
4875 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4876 sizeof (page_t),
4877 PAGE_USIZE);
4878
4879 #endif
4880
4881 alloc_counts[ alloc_type_none ].alloc_name = "none";
4882 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4883 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4884 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4885 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4886 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4887 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4888 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4889 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4890
4891 int_type_info = type_info_init;
4892 int_type_info.basic_type = bt_Int;
4893
4894 void_type_info = type_info_init;
4895 void_type_info.basic_type = bt_Void;
4896
4897 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4898 switch (option)
4899 {
4900 default:
4901 had_errors++;
4902 break;
4903
4904 case 'd':
4905 debug = strtol (optarg, &num_end, 0);
4906 if ((unsigned)debug > 4 || num_end == optarg)
4907 had_errors++;
4908
4909 break;
4910
4911 case 'I':
4912 if (rename_output || obj_in_name != (char *) 0)
4913 had_errors++;
4914 else
4915 rename_output = 1;
4916
4917 /* fall through to 'i' case. */
4918
4919 case 'i':
4920 if (obj_in_name == (char *) 0)
4921 {
4922 obj_in_name = optarg;
4923 iflag++;
4924 }
4925 else
4926 had_errors++;
4927 break;
4928
4929 case 'o':
4930 if (object_name == (char *) 0)
4931 object_name = optarg;
4932 else
4933 had_errors++;
4934 break;
4935
4936 case 'v':
4937 version++;
4938 break;
4939 }
4940
4941 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4942 obj_in_name = argv[--argc];
4943
4944 if (object_name == (char *) 0 && optind <= argc - 2)
4945 object_name = argv[--argc];
4946
4947 /* If there is an output name, but no input name use
4948 the same file for both, deleting the name between
4949 opening it for input and opening it for output. */
4950 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4951 {
4952 obj_in_name = object_name;
4953 delete_input = 1;
4954 }
4955
4956 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4957 {
4958 fprintf (stderr, "Calling Sequence:\n");
4959 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4960 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4961 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4962 fprintf (stderr, "\n");
4963 fprintf (stderr, "Debug levels are:\n");
4964 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4965 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4966 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4967 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4968 return 1;
4969 }
4970
4971
4972 if (version)
4973 {
4974 fprintf (stderr, "mips-tfile version %s", version_string);
4975 #ifdef TARGET_VERSION
4976 TARGET_VERSION;
4977 #endif
4978 fputc ('\n', stderr);
4979 }
4980
4981 if (obj_in_name == (char *) 0)
4982 obj_in_name = object_name;
4983
4984 if (rename_output && rename (object_name, obj_in_name) != 0)
4985 {
4986 char *buffer = (char *) allocate_multiple_pages (4);
4987 int len;
4988 int len2;
4989 int in_fd;
4990 int out_fd;
4991
4992 /* Rename failed, copy input file */
4993 in_fd = open (object_name, O_RDONLY, 0666);
4994 if (in_fd < 0)
4995 pfatal_with_name (object_name);
4996
4997 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4998 if (out_fd < 0)
4999 pfatal_with_name (obj_in_name);
5000
5001 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5002 {
5003 len2 = write (out_fd, buffer, len);
5004 if (len2 < 0)
5005 pfatal_with_name (object_name);
5006
5007 if (len != len2)
5008 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5009 }
5010
5011 free_multiple_pages ((page_t *)buffer, 4);
5012
5013 if (len < 0)
5014 pfatal_with_name (object_name);
5015
5016 if (close (in_fd) < 0)
5017 pfatal_with_name (object_name);
5018
5019 if (close (out_fd) < 0)
5020 pfatal_with_name (obj_in_name);
5021 }
5022
5023 /* Must open input before output, since the output may be the same file, and
5024 we need to get the input handle before truncating it. */
5025 obj_in_stream = fopen (obj_in_name, "r");
5026 if (obj_in_stream == (FILE *) 0)
5027 pfatal_with_name (obj_in_name);
5028
5029 if (delete_input && unlink (obj_in_name) != 0)
5030 pfatal_with_name (obj_in_name);
5031
5032 object_stream = fopen (object_name, "w");
5033 if (object_stream == (FILE *) 0)
5034 pfatal_with_name (object_name);
5035
5036 if (strcmp (argv[optind], "-") != 0)
5037 {
5038 input_name = argv[optind];
5039 if (freopen (argv[optind], "r", stdin) != stdin)
5040 pfatal_with_name (argv[optind]);
5041 }
5042
5043 copy_object (); /* scan & copy object file */
5044 parse_input (); /* scan all of input */
5045
5046 update_headers (); /* write out tfile */
5047 write_object ();
5048
5049 if (debug)
5050 {
5051 fprintf (stderr, "\n\tAllocation summary:\n\n");
5052 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5053 if (alloc_counts[i].total_alloc)
5054 {
5055 fprintf (stderr,
5056 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5057 alloc_counts[i].alloc_name,
5058 alloc_counts[i].total_alloc,
5059 alloc_counts[i].total_free,
5060 alloc_counts[i].total_pages);
5061 }
5062 }
5063
5064 return (had_errors) ? 1 : 0;
5065 }
5066
5067 \f
5068 /* Catch a signal and exit without dumping core. */
5069
5070 STATIC void
5071 catch_signal (signum)
5072 int signum;
5073 {
5074 (void) signal (signum, SIG_DFL); /* just in case... */
5075 #ifdef NO_SYS_SIGLIST
5076 fatal ("caught signal");
5077 #else
5078 fatal (sys_siglist[signum]);
5079 #endif
5080 }
5081
5082 /* Print a fatal error message. NAME is the text.
5083 Also include a system error message based on `errno'. */
5084
5085 void
5086 pfatal_with_name (msg)
5087 char *msg;
5088 {
5089 int save_errno = errno; /* just in case.... */
5090 if (line_number > 0)
5091 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5092 else
5093 fprintf (stderr, "%s:", progname);
5094
5095 errno = save_errno;
5096 if (errno == 0)
5097 fprintf (stderr, "[errno = 0] %s\n", msg);
5098 else
5099 perror (msg);
5100
5101 exit (1);
5102 }
5103
5104 \f
5105 /* Procedure to abort with an out of bounds error message. It has
5106 type int, so it can be used with an ?: expression within the
5107 ORIG_xxx macros, but the function never returns. */
5108
5109 static int
5110 out_of_bounds (indx, max, str, prog_line)
5111 symint_t indx; /* index that is out of bounds */
5112 symint_t max; /* maximum index */
5113 const char *str; /* string to print out */
5114 int prog_line; /* line number within mips-tfile.c */
5115 {
5116 if (indx < max) /* just in case */
5117 return 0;
5118
5119 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5120 progname, input_name, line_number, indx, str, max, prog_line);
5121
5122 exit (1);
5123 return 0; /* turn off warning messages */
5124 }
5125
5126 \f
5127 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5128 like sbrk's behind it's back (or sbrk isn't available). If we use
5129 sbrk, we assume it gives us zeroed pages. */
5130
5131 #ifndef MALLOC_CHECK
5132 #ifdef USE_MALLOC
5133
5134 STATIC page_t *
5135 allocate_cluster (npages)
5136 Size_t npages;
5137 {
5138 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5139
5140 if (value == 0)
5141 fatal ("Virtual memory exhausted.");
5142
5143 if (debug > 3)
5144 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5145
5146 return value;
5147 }
5148
5149 #else /* USE_MALLOC */
5150
5151 STATIC page_t *
5152 allocate_cluster (npages)
5153 Size_t npages;
5154 {
5155 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5156 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5157
5158 if (offset != 0) /* align to a page boundary */
5159 {
5160 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5161 pfatal_with_name ("allocate_cluster");
5162
5163 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5164 }
5165
5166 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5167 pfatal_with_name ("allocate_cluster");
5168
5169 if (debug > 3)
5170 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5171
5172 return ptr;
5173 }
5174
5175 #endif /* USE_MALLOC */
5176
5177
5178 static page_t *cluster_ptr = NULL;
5179 static unsigned pages_left = 0;
5180
5181 #endif /* MALLOC_CHECK */
5182
5183
5184 /* Allocate some pages (which is initialized to 0). */
5185
5186 STATIC page_t *
5187 allocate_multiple_pages (npages)
5188 Size_t npages;
5189 {
5190 #ifndef MALLOC_CHECK
5191 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5192 {
5193 pages_left = MAX_CLUSTER_PAGES;
5194 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5195 }
5196
5197 if (npages <= pages_left)
5198 {
5199 page_t *ptr = cluster_ptr;
5200 cluster_ptr += npages;
5201 pages_left -= npages;
5202 return ptr;
5203 }
5204
5205 return allocate_cluster (npages);
5206
5207 #else /* MALLOC_CHECK */
5208 return (page_t *) xcalloc (npages, PAGE_SIZE);
5209
5210 #endif /* MALLOC_CHECK */
5211 }
5212
5213
5214 /* Release some pages. */
5215
5216 STATIC void
5217 free_multiple_pages (page_ptr, npages)
5218 page_t *page_ptr;
5219 Size_t npages;
5220 {
5221 #ifndef MALLOC_CHECK
5222 if (pages_left == 0)
5223 {
5224 cluster_ptr = page_ptr;
5225 pages_left = npages;
5226 }
5227
5228 else if ((page_ptr + npages) == cluster_ptr)
5229 {
5230 cluster_ptr -= npages;
5231 pages_left += npages;
5232 }
5233
5234 /* otherwise the page is not freed. If more than call is
5235 done, we probably should worry about it, but at present,
5236 the free pages is done right after an allocate. */
5237
5238 #else /* MALLOC_CHECK */
5239 free ((char *) page_ptr);
5240
5241 #endif /* MALLOC_CHECK */
5242 }
5243
5244
5245 /* Allocate one page (which is initialized to 0). */
5246
5247 STATIC page_t *
5248 allocate_page __proto((void))
5249 {
5250 #ifndef MALLOC_CHECK
5251 if (pages_left == 0)
5252 {
5253 pages_left = MAX_CLUSTER_PAGES;
5254 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5255 }
5256
5257 pages_left--;
5258 return cluster_ptr++;
5259
5260 #else /* MALLOC_CHECK */
5261 return (page_t *) xcalloc (1, PAGE_SIZE);
5262
5263 #endif /* MALLOC_CHECK */
5264 }
5265
5266 \f
5267 /* Allocate scoping information. */
5268
5269 STATIC scope_t *
5270 allocate_scope __proto((void))
5271 {
5272 register scope_t *ptr;
5273 static scope_t initial_scope;
5274
5275 #ifndef MALLOC_CHECK
5276 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5277 if (ptr != (scope_t *) 0)
5278 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5279
5280 else
5281 {
5282 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5283 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5284
5285 if (unallocated == 0)
5286 {
5287 unallocated = PAGE_SIZE / sizeof (scope_t);
5288 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5289 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5290 }
5291
5292 ptr = &cur_page->scope[ --unallocated ];
5293 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5294 }
5295
5296 #else
5297 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5298
5299 #endif
5300
5301 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5302 *ptr = initial_scope;
5303 return ptr;
5304 }
5305
5306 /* Free scoping information. */
5307
5308 STATIC void
5309 free_scope (ptr)
5310 scope_t *ptr;
5311 {
5312 alloc_counts[ (int)alloc_type_scope ].total_free++;
5313
5314 #ifndef MALLOC_CHECK
5315 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5316 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5317
5318 #else
5319 xfree ((PTR_T) ptr);
5320 #endif
5321
5322 }
5323
5324 \f
5325 /* Allocate links for pages in a virtual array. */
5326
5327 STATIC vlinks_t *
5328 allocate_vlinks __proto((void))
5329 {
5330 register vlinks_t *ptr;
5331 static vlinks_t initial_vlinks;
5332
5333 #ifndef MALLOC_CHECK
5334 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5335 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5336
5337 if (unallocated == 0)
5338 {
5339 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5340 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5341 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5342 }
5343
5344 ptr = &cur_page->vlinks[ --unallocated ];
5345 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5346
5347 #else
5348 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5349
5350 #endif
5351
5352 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5353 *ptr = initial_vlinks;
5354 return ptr;
5355 }
5356
5357 \f
5358 /* Allocate string hash buckets. */
5359
5360 STATIC shash_t *
5361 allocate_shash __proto((void))
5362 {
5363 register shash_t *ptr;
5364 static shash_t initial_shash;
5365
5366 #ifndef MALLOC_CHECK
5367 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5368 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5369
5370 if (unallocated == 0)
5371 {
5372 unallocated = PAGE_SIZE / sizeof (shash_t);
5373 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5374 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5375 }
5376
5377 ptr = &cur_page->shash[ --unallocated ];
5378 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5379
5380 #else
5381 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5382
5383 #endif
5384
5385 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5386 *ptr = initial_shash;
5387 return ptr;
5388 }
5389
5390 \f
5391 /* Allocate type hash buckets. */
5392
5393 STATIC thash_t *
5394 allocate_thash __proto((void))
5395 {
5396 register thash_t *ptr;
5397 static thash_t initial_thash;
5398
5399 #ifndef MALLOC_CHECK
5400 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5401 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5402
5403 if (unallocated == 0)
5404 {
5405 unallocated = PAGE_SIZE / sizeof (thash_t);
5406 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5407 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5408 }
5409
5410 ptr = &cur_page->thash[ --unallocated ];
5411 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5412
5413 #else
5414 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5415
5416 #endif
5417
5418 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5419 *ptr = initial_thash;
5420 return ptr;
5421 }
5422
5423 \f
5424 /* Allocate structure, union, or enum tag information. */
5425
5426 STATIC tag_t *
5427 allocate_tag __proto((void))
5428 {
5429 register tag_t *ptr;
5430 static tag_t initial_tag;
5431
5432 #ifndef MALLOC_CHECK
5433 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5434 if (ptr != (tag_t *) 0)
5435 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5436
5437 else
5438 {
5439 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5440 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5441
5442 if (unallocated == 0)
5443 {
5444 unallocated = PAGE_SIZE / sizeof (tag_t);
5445 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5446 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5447 }
5448
5449 ptr = &cur_page->tag[ --unallocated ];
5450 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5451 }
5452
5453 #else
5454 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5455
5456 #endif
5457
5458 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5459 *ptr = initial_tag;
5460 return ptr;
5461 }
5462
5463 /* Free scoping information. */
5464
5465 STATIC void
5466 free_tag (ptr)
5467 tag_t *ptr;
5468 {
5469 alloc_counts[ (int)alloc_type_tag ].total_free++;
5470
5471 #ifndef MALLOC_CHECK
5472 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5473 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5474
5475 #else
5476 xfree ((PTR_T) ptr);
5477 #endif
5478
5479 }
5480
5481 \f
5482 /* Allocate forward reference to a yet unknown tag. */
5483
5484 STATIC forward_t *
5485 allocate_forward __proto((void))
5486 {
5487 register forward_t *ptr;
5488 static forward_t initial_forward;
5489
5490 #ifndef MALLOC_CHECK
5491 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5492 if (ptr != (forward_t *) 0)
5493 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5494
5495 else
5496 {
5497 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5498 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5499
5500 if (unallocated == 0)
5501 {
5502 unallocated = PAGE_SIZE / sizeof (forward_t);
5503 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5504 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5505 }
5506
5507 ptr = &cur_page->forward[ --unallocated ];
5508 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5509 }
5510
5511 #else
5512 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5513
5514 #endif
5515
5516 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5517 *ptr = initial_forward;
5518 return ptr;
5519 }
5520
5521 /* Free scoping information. */
5522
5523 STATIC void
5524 free_forward (ptr)
5525 forward_t *ptr;
5526 {
5527 alloc_counts[ (int)alloc_type_forward ].total_free++;
5528
5529 #ifndef MALLOC_CHECK
5530 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5531 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5532
5533 #else
5534 xfree ((PTR_T) ptr);
5535 #endif
5536
5537 }
5538
5539 \f
5540 /* Allocate head of type hash list. */
5541
5542 STATIC thead_t *
5543 allocate_thead __proto((void))
5544 {
5545 register thead_t *ptr;
5546 static thead_t initial_thead;
5547
5548 #ifndef MALLOC_CHECK
5549 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5550 if (ptr != (thead_t *) 0)
5551 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5552
5553 else
5554 {
5555 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5556 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5557
5558 if (unallocated == 0)
5559 {
5560 unallocated = PAGE_SIZE / sizeof (thead_t);
5561 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5562 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5563 }
5564
5565 ptr = &cur_page->thead[ --unallocated ];
5566 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5567 }
5568
5569 #else
5570 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5571
5572 #endif
5573
5574 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5575 *ptr = initial_thead;
5576 return ptr;
5577 }
5578
5579 /* Free scoping information. */
5580
5581 STATIC void
5582 free_thead (ptr)
5583 thead_t *ptr;
5584 {
5585 alloc_counts[ (int)alloc_type_thead ].total_free++;
5586
5587 #ifndef MALLOC_CHECK
5588 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5589 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5590
5591 #else
5592 xfree ((PTR_T) ptr);
5593 #endif
5594
5595 }
5596
5597 #endif /* MIPS_DEBUGGING_INFO */
5598
5599 \f
5600 #ifdef HAVE_VPRINTF
5601
5602 /* Output an error message and exit */
5603
5604 /*VARARGS*/
5605 void
5606 fatal VPROTO((const char *format, ...))
5607 {
5608 #ifndef __STDC__
5609 char *format;
5610 #endif
5611 va_list ap;
5612
5613 VA_START (ap, format);
5614
5615 #ifndef __STDC__
5616 format = va_arg (ap, char *);
5617 #endif
5618
5619 if (line_number > 0)
5620 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5621 else
5622 fprintf (stderr, "%s:", progname);
5623
5624 vfprintf (stderr, format, ap);
5625 va_end (ap);
5626 fprintf (stderr, "\n");
5627 if (line_number > 0)
5628 fprintf (stderr, "line:\t%s\n", cur_line_start);
5629
5630 saber_stop ();
5631 exit (1);
5632 }
5633
5634 /*VARARGS*/
5635 void
5636 error VPROTO((const char *format, ...))
5637 {
5638 #ifndef __STDC__
5639 char *format;
5640 #endif
5641 va_list ap;
5642
5643 VA_START (ap, format);
5644
5645 #ifndef __STDC__
5646 format = va_arg (ap, char *);
5647 #endif
5648
5649 if (line_number > 0)
5650 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5651 else
5652 fprintf (stderr, "%s:", progname);
5653
5654 vfprintf (stderr, format, ap);
5655 fprintf (stderr, "\n");
5656 if (line_number > 0)
5657 fprintf (stderr, "line:\t%s\n", cur_line_start);
5658
5659 had_errors++;
5660 va_end (ap);
5661
5662 saber_stop ();
5663 }
5664
5665 #else /* not HAVE_VPRINTF */
5666
5667 void
5668 fatal (msg, arg1, arg2)
5669 char *msg, *arg1, *arg2;
5670 {
5671 error (msg, arg1, arg2);
5672 exit (1);
5673 }
5674
5675 void
5676 error (msg, arg1, arg2)
5677 char *msg, *arg1, *arg2;
5678 {
5679 fprintf (stderr, "%s: ", progname);
5680 fprintf (stderr, msg, arg1, arg2);
5681 fprintf (stderr, "\n");
5682 }
5683
5684 #endif /* not HAVE_VPRINTF */
5685
5686 /* More 'friendly' abort that prints the line and file.
5687 config.h can #define abort fancy_abort if you like that sort of thing. */
5688
5689 void
5690 fancy_abort ()
5691 {
5692 fatal ("Internal abort.");
5693 }
5694 \f
5695
5696 /* When `malloc.c' is compiled with `rcheck' defined,
5697 it calls this function to report clobberage. */
5698
5699 void
5700 botch (s)
5701 const char *s;
5702 {
5703 fatal (s);
5704 }
5705
5706 /* Same as `malloc' but report error if no memory available. */
5707
5708 PTR_T
5709 xmalloc (size)
5710 Size_t size;
5711 {
5712 register PTR_T value = malloc (size);
5713 if (value == 0)
5714 fatal ("Virtual memory exhausted.");
5715
5716 if (debug > 3)
5717 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5718
5719 return value;
5720 }
5721
5722 /* Same as `calloc' but report error if no memory available. */
5723
5724 PTR_T
5725 xcalloc (size1, size2)
5726 Size_t size1, size2;
5727 {
5728 register PTR_T value = calloc (size1, size2);
5729 if (value == 0)
5730 fatal ("Virtual memory exhausted.");
5731
5732 if (debug > 3)
5733 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5734 value, size1, size2, size1+size2);
5735
5736 return value;
5737 }
5738
5739 /* Same as `realloc' but report error if no memory available. */
5740
5741 PTR_T
5742 xrealloc (ptr, size)
5743 PTR_T ptr;
5744 Size_t size;
5745 {
5746 register PTR_T result = realloc (ptr, size);
5747 if (!result)
5748 fatal ("Virtual memory exhausted.");
5749
5750 if (debug > 3)
5751 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5752 result, size, ptr);
5753
5754 return result;
5755 }
5756
5757 void
5758 xfree (ptr)
5759 PTR_T ptr;
5760 {
5761 if (debug > 3)
5762 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5763
5764 free (ptr);
5765 }
5766
5767 \f
5768 /* Define our own index/rindex, since the local and global symbol
5769 structures as defined by MIPS has an 'index' field. */
5770
5771 STATIC char *
5772 local_index (str, sentinel)
5773 const char *str;
5774 int sentinel;
5775 {
5776 int ch;
5777
5778 for ( ; (ch = *str) != sentinel; str++)
5779 {
5780 if (ch == '\0')
5781 return (char *) 0;
5782 }
5783
5784 return (char *)str;
5785 }
5786
5787 STATIC char *
5788 local_rindex (str, sentinel)
5789 const char *str;
5790 int sentinel;
5791 {
5792 int ch;
5793 const char *ret = (const char *) 0;
5794
5795 for ( ; (ch = *str) != '\0'; str++)
5796 {
5797 if (ch == sentinel)
5798 ret = str;
5799 }
5800
5801 return (char *)ret;
5802 }
GNU Compiler Collection
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