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(*zeroextract[qs]i_compare0_scratch): Use const_int_operand
[official-gcc.git] / gcc / mips-tfile.c
blobcce203f7aceff2c2081269b003e327cdb1977a5b
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 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 #ifdef __STDC__
603 #include <stdarg.h>
604 #else
605 #include <varargs.h>
606 #endif
607 #include "config.h"
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 DONT_DECLARE_SYS_SIGLIST
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 t.extra_sizes = (tag_start != (char *)0);
3298 if (t.num_dims > 0)
3299 {
3300 int diff = t.num_dims - t.num_sizes;
3301 int i = t.num_dims - 1;
3302 int j;
3303
3304 if (t.num_sizes != 1 || diff < 0)
3305 {
3306 error_line = __LINE__;
3307 saber_stop ();
3308 goto bomb_out;
3309 }
3310
3311 /* If this is an array, make sure the same number of dimensions
3312 and sizes were passed, creating extra sizes for multiply
3313 dimensioned arrays if not passed. */
3314
3315 t.extra_sizes = 0;
3316 if (diff)
3317 {
3318 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3319 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3320
3321 t.num_sizes = i + 1;
3322 for ( i--; i >= 0; i-- )
3323 {
3324 if (t.dimensions[ i+1 ])
3325 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3326 else
3327 t.sizes[ i ] = t.sizes[ i+1 ];
3328 }
3329 }
3330 }
3331
3332 else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3333 { /* Is this a bitfield? This is indicated by a structure member
3334 having a size field that isn't an array. */
3335
3336 t.bitfield = 1;
3337 }
3338
3339
3340 /* Except for enumeration members & begin/ending of scopes, put the
3341 type word in the aux. symbol table. */
3342
3343 if (symbol_type == st_Block || symbol_type == st_End)
3344 indx = 0;
3345
3346 else if (inside_enumeration)
3347 indx = cur_file_ptr->void_type;
3348
3349 else
3350 {
3351 if (t.basic_type == bt_Struct
3352 || t.basic_type == bt_Union
3353 || t.basic_type == bt_Enum)
3354 {
3355 if (tag_start == (char *)0)
3356 {
3357 error ("No tag specified for %.*s",
3358 name_end_p1 - name_start,
3359 name_start);
3360 return;
3361 }
3362
3363 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3364 t.basic_type);
3365 }
3366
3367 if (is_function)
3368 {
3369 last_func_type_info = t;
3370 last_func_eptr = eptr;
3371 return;
3372 }
3373
3374 indx = add_aux_sym_tir (&t,
3375 hash_yes,
3376 &cur_file_ptr->thash_head[0]);
3377 }
3378
3379
3380 /* If this is an external or static symbol, update the appropriate
3381 external symbol. */
3382
3383 if (eptr != (EXTR *)0
3384 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3385 {
3386 eptr->ifd = cur_file_ptr->file_index;
3387 eptr->asym.index = indx;
3388 }
3389
3390
3391 /* Do any last minute adjustments that are necessary. */
3392 switch (symbol_type)
3393 {
3394 default:
3395 break;
3396
3397
3398 /* For the beginning of structs, unions, and enumerations, the
3399 size info needs to be passed in the value field. */
3400
3401 case st_Block:
3402 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3403 {
3404 error_line = __LINE__;
3405 saber_stop ();
3406 goto bomb_out;
3407 }
3408
3409 else
3410 value = t.sizes[0];
3411
3412 inside_enumeration = (t.orig_type == T_ENUM);
3413 break;
3414
3415
3416 /* For the end of structs, unions, and enumerations, omit the
3417 name which is always ".eos". This needs to be done last, so
3418 that any error reporting above gives the correct name. */
3419
3420 case st_End:
3421 name_start = name_end_p1 = (const char *)0;
3422 value = inside_enumeration = 0;
3423 break;
3424
3425
3426 /* Members of structures and unions that aren't bitfields, need
3427 to adjust the value from a byte offset to a bit offset.
3428 Members of enumerations do not have the value adjusted, and
3429 can be distinguished by indx == indexNil. For enumerations,
3430 update the maximum enumeration value. */
3431
3432 case st_Member:
3433 if (!t.bitfield && !inside_enumeration)
3434 value *= 8;
3435
3436 break;
3437 }
3438
3439
3440 /* Add the symbol, except for global symbols outside of functions,
3441 for which the external symbol table is fine enough. */
3442
3443 if (eptr == (EXTR *)0
3444 || eptr->asym.st == (int)st_Nil
3445 || cur_proc_ptr != (PDR *)0)
3446 {
3447 symint_t isym = add_local_symbol (name_start, name_end_p1,
3448 symbol_type, storage_class,
3449 value,
3450 indx);
3451
3452 /* deal with struct, union, and enum tags. */
3453 if (symbol_type == st_Block)
3454 {
3455 /* Create or update the tag information. */
3456 tag_t *tag_ptr = get_tag (name_start,
3457 name_end_p1,
3458 isym,
3459 t.basic_type);
3460
3461 /* If there are any forward references, fill in the appropriate
3462 file and symbol indexes. */
3463
3464 symint_t file_index = cur_file_ptr->file_index;
3465 forward_t *f_next = tag_ptr->forward_ref;
3466 forward_t *f_cur;
3467
3468 while (f_next != (forward_t *)0)
3469 {
3470 f_cur = f_next;
3471 f_next = f_next->next;
3472
3473 f_cur->ifd_ptr->isym = file_index;
3474 f_cur->index_ptr->rndx.index = isym;
3475
3476 free_forward (f_cur);
3477 }
3478
3479 tag_ptr->forward_ref = (forward_t *)0;
3480 }
3481 }
3482
3483 /* Normal return */
3484 return;
3485
3486 /* Error return, issue message. */
3487 bomb_out:
3488 if (error_line)
3489 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3490 else
3491 error ("compiler error, badly formed #.def");
3492
3493 return;
3494 }
3495
3496 \f
3497 /* Parse .end directives. */
3498
3499 STATIC void
3500 parse_end (start)
3501 const char *start; /* start of directive */
3502 {
3503 register const char *start_func, *end_func_p1;
3504 register int ch;
3505 register symint_t value;
3506 register FDR *orig_fdr;
3507
3508 if (cur_file_ptr == (efdr_t *)0)
3509 {
3510 error (".end directive without a preceding .file directive");
3511 return;
3512 }
3513
3514 if (cur_proc_ptr == (PDR *)0)
3515 {
3516 error (".end directive without a preceding .ent directive");
3517 return;
3518 }
3519
3520 /* Get the function name, skipping whitespace. */
3521 for (start_func = start; isspace (*start_func); start_func++)
3522 ;
3523
3524 ch = *start_func;
3525 if (!IS_ASM_IDENT (ch))
3526 {
3527 error (".end directive has no name");
3528 return;
3529 }
3530
3531 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3532 ;
3533
3534
3535 /* Get the value field for creating the end from the original object
3536 file (which we find by locating the procedure start, and using the
3537 pointer to the end+1 block and backing up. The index points to a
3538 two word aux. symbol, whose first word is the index of the end
3539 symbol, and the second word is the type of the function return
3540 value. */
3541
3542 orig_fdr = cur_file_ptr->orig_fdr;
3543 value = 0;
3544 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3545 value = cur_oproc_end->value;
3546
3547 else
3548 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3549
3550 (void) add_local_symbol (start_func, end_func_p1,
3551 st_End, sc_Text,
3552 value,
3553 (symint_t)0);
3554
3555 cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3556 }
3557
3558 \f
3559 /* Parse .ent directives. */
3560
3561 STATIC void
3562 parse_ent (start)
3563 const char *start; /* start of directive */
3564 {
3565 register const char *start_func, *end_func_p1;
3566 register int ch;
3567
3568 if (cur_file_ptr == (efdr_t *)0)
3569 {
3570 error (".ent directive without a preceding .file directive");
3571 return;
3572 }
3573
3574 if (cur_proc_ptr != (PDR *)0)
3575 {
3576 error ("second .ent directive found before .end directive");
3577 return;
3578 }
3579
3580 for (start_func = start; isspace (*start_func); start_func++)
3581 ;
3582
3583 ch = *start_func;
3584 if (!IS_ASM_IDENT (ch))
3585 {
3586 error (".ent directive has no name");
3587 return;
3588 }
3589
3590 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3591 ;
3592
3593 (void) add_procedure (start_func, end_func_p1);
3594 }
3595
3596 \f
3597 /* Parse .file directives. */
3598
3599 STATIC void
3600 parse_file (start)
3601 const char *start; /* start of directive */
3602 {
3603 char *p;
3604 register char *start_name, *end_name_p1;
3605
3606 (void) strtol (start, &p, 0);
3607 if (start == p
3608 || (start_name = local_index (p, '"')) == (char *)0
3609 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *)0)
3610 {
3611 error ("Invalid .file directive");
3612 return;
3613 }
3614
3615 if (cur_proc_ptr != (PDR *)0)
3616 {
3617 error ("No way to handle .file within .ent/.end section");
3618 return;
3619 }
3620
3621 add_file (start_name, end_name_p1);
3622 }
3623
3624 \f
3625 /* Make sure the @stabs symbol is emitted. */
3626
3627 static void
3628 mark_stabs (start)
3629 const char *start; /* Start of directive (ignored) */
3630 {
3631 if (!stabs_seen)
3632 {
3633 /* Add a dummy @stabs symbol. */
3634 stabs_seen = 1;
3635 (void) add_local_symbol (stabs_symbol,
3636 stabs_symbol + sizeof (stabs_symbol),
3637 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3638
3639 }
3640 }
3641
3642 \f
3643 /* Parse .stabs directives.
3644
3645 .stabs directives have five fields:
3646 "string" a string, encoding the type information.
3647 code a numeric code, defined in <stab.h>
3648 0 a zero
3649 0 a zero or line number
3650 value a numeric value or an address.
3651
3652 If the value is relocatable, we transform this into:
3653 iss points as an index into string space
3654 value value from lookup of the name
3655 st st from lookup of the name
3656 sc sc from lookup of the name
3657 index code|CODE_MASK
3658
3659 If the value is not relocatable, we transform this into:
3660 iss points as an index into string space
3661 value value
3662 st st_Nil
3663 sc sc_Nil
3664 index code|CODE_MASK
3665
3666 .stabn directives have four fields (string is null):
3667 code a numeric code, defined in <stab.h>
3668 0 a zero
3669 0 a zero or a line number
3670 value a numeric value or an address. */
3671
3672 STATIC void
3673 parse_stabs_common (string_start, string_end, rest)
3674 const char *string_start; /* start of string or NULL */
3675 const char *string_end; /* end+1 of string or NULL */
3676 const char *rest; /* rest of the directive. */
3677 {
3678 efdr_t *save_file_ptr = cur_file_ptr;
3679 symint_t code;
3680 symint_t value;
3681 char *p;
3682 st_t st;
3683 sc_t sc;
3684 int ch;
3685
3686 if (stabs_seen == 0)
3687 mark_stabs ("");
3688
3689 /* Read code from stabs. */
3690 if (!isdigit (*rest))
3691 {
3692 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3693 return;
3694 }
3695
3696 code = strtol (rest, &p, 0);
3697
3698 /* Line number stabs are handled differently, since they have two values,
3699 the line number and the address of the label. We use the index field
3700 (aka code) to hold the line number, and the value field to hold the
3701 address. The symbol type is st_Label, which should be different from
3702 the other stabs, so that gdb can recognize it. */
3703
3704 if (code == (int)N_SLINE)
3705 {
3706 SYMR *sym_ptr, dummy_symr;
3707 shash_t *shash_ptr;
3708
3709 /* Skip ,0, */
3710 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3711 {
3712 error ("Invalid line number .stabs/.stabn directive");
3713 return;
3714 }
3715
3716 code = strtol (p+3, &p, 0);
3717 ch = *++p;
3718 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3719 {
3720 error ("Invalid line number .stabs/.stabn directive");
3721 return;
3722 }
3723
3724 dummy_symr.index = code;
3725 if (dummy_symr.index != code)
3726 {
3727 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3728 code);
3729
3730 return;
3731 }
3732
3733 shash_ptr = hash_string (p,
3734 strlen (p) - 1,
3735 &orig_str_hash[0],
3736 (symint_t *)0);
3737
3738 if (shash_ptr == (shash_t *)0
3739 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3740 {
3741 error ("Invalid .stabs/.stabn directive, value not found");
3742 return;
3743 }
3744
3745 if ((st_t) sym_ptr->st != st_Label)
3746 {
3747 error ("Invalid line number .stabs/.stabn directive");
3748 return;
3749 }
3750
3751 st = st_Label;
3752 sc = (sc_t) sym_ptr->sc;
3753 value = sym_ptr->value;
3754 }
3755 else
3756 {
3757 /* Skip ,<num>,<num>, */
3758 if (*p++ != ',')
3759 goto failure;
3760 for (; isdigit (*p); p++)
3761 ;
3762 if (*p++ != ',')
3763 goto failure;
3764 for (; isdigit (*p); p++)
3765 ;
3766 if (*p++ != ',')
3767 goto failure;
3768 ch = *p;
3769 if (!IS_ASM_IDENT (ch) && ch != '-')
3770 {
3771 failure:
3772 error ("Invalid .stabs/.stabn directive, bad character");
3773 return;
3774 }
3775
3776 if (isdigit (ch) || ch == '-')
3777 {
3778 st = st_Nil;
3779 sc = sc_Nil;
3780 value = strtol (p, &p, 0);
3781 if (*p != '\n')
3782 {
3783 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3784 return;
3785 }
3786 }
3787 else if (!IS_ASM_IDENT (ch))
3788 {
3789 error ("Invalid .stabs/.stabn directive, bad character");
3790 return;
3791 }
3792 else
3793 {
3794 SYMR *sym_ptr;
3795 shash_t *shash_ptr;
3796 const char *start, *end_p1;
3797
3798 start = p;
3799 if ((end_p1 = strchr (start, '+')) == (char *)0)
3800 {
3801 if ((end_p1 = strchr (start, '-')) == (char *)0)
3802 end_p1 = start + strlen(start) - 1;
3803 }
3804
3805 shash_ptr = hash_string (start,
3806 end_p1 - start,
3807 &orig_str_hash[0],
3808 (symint_t *)0);
3809
3810 if (shash_ptr == (shash_t *)0
3811 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3812 {
3813 shash_ptr = hash_string (start,
3814 end_p1 - start,
3815 &ext_str_hash[0],
3816 (symint_t *)0);
3817
3818 if (shash_ptr == (shash_t *)0
3819 || shash_ptr->esym_ptr == (EXTR *)0)
3820 {
3821 error ("Invalid .stabs/.stabn directive, value not found");
3822 return;
3823 }
3824 else
3825 sym_ptr = &(shash_ptr->esym_ptr->asym);
3826 }
3827
3828 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3829 if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3830 {
3831 sc = scNil;
3832 st = stNil;
3833 }
3834 else
3835 {
3836 sc = (sc_t) sym_ptr->sc;
3837 st = (st_t) sym_ptr->st;
3838 }
3839 value = sym_ptr->value;
3840
3841 ch = *end_p1++;
3842 if (ch != '\n')
3843 {
3844 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3845 || ((ch != '+') && (ch != '-')))
3846 {
3847 error ("Invalid .stabs/.stabn directive, badly formed value");
3848 return;
3849 }
3850 if (ch == '+')
3851 value += strtol (end_p1, &p, 0);
3852 else if (ch == '-')
3853 value -= strtol (end_p1, &p, 0);
3854
3855 if (*p != '\n')
3856 {
3857 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3858 return;
3859 }
3860 }
3861 }
3862 code = MIPS_MARK_STAB(code);
3863 }
3864
3865 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3866 /* Restore normal file type. */
3867 cur_file_ptr = save_file_ptr;
3868 }
3869
3870
3871 STATIC void
3872 parse_stabs (start)
3873 const char *start; /* start of directive */
3874 {
3875 const char *end = local_index (start+1, '"');
3876
3877 if (*start != '"' || end == (const char *)0 || end[1] != ',')
3878 {
3879 error ("Invalid .stabs directive, no string");
3880 return;
3881 }
3882
3883 parse_stabs_common (start+1, end, end+2);
3884 }
3885
3886
3887 STATIC void
3888 parse_stabn (start)
3889 const char *start; /* start of directive */
3890 {
3891 parse_stabs_common ((const char *)0, (const char *)0, start);
3892 }
3893
3894 \f
3895 /* Parse the input file, and write the lines to the output file
3896 if needed. */
3897
3898 STATIC void
3899 parse_input __proto((void))
3900 {
3901 register char *p;
3902 register int i;
3903 register thead_t *ptag_head;
3904 register tag_t *ptag;
3905 register tag_t *ptag_next;
3906
3907 if (debug)
3908 fprintf (stderr, "\tinput\n");
3909
3910 /* Add a dummy scope block around the entire compilation unit for
3911 structures defined outside of blocks. */
3912 ptag_head = allocate_thead ();
3913 ptag_head->first_tag = 0;
3914 ptag_head->prev = cur_tag_head;
3915 cur_tag_head = ptag_head;
3916
3917 while ((p = read_line ()) != (char *)0)
3918 {
3919 /* Skip leading blanks */
3920 while (isspace (*p))
3921 p++;
3922
3923 /* See if it's a directive we handle. If so, dispatch handler. */
3924 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3925 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3926 && isspace (p[pseudo_ops[i].len]))
3927 {
3928 p += pseudo_ops[i].len; /* skip to first argument */
3929 while (isspace (*p))
3930 p++;
3931
3932 (*pseudo_ops[i].func)( p );
3933 break;
3934 }
3935 }
3936
3937 /* Process any tags at global level. */
3938 ptag_head = cur_tag_head;
3939 cur_tag_head = ptag_head->prev;
3940
3941 for (ptag = ptag_head->first_tag;
3942 ptag != (tag_t *)0;
3943 ptag = ptag_next)
3944 {
3945 if (ptag->forward_ref != (forward_t *)0)
3946 add_unknown_tag (ptag);
3947
3948 ptag_next = ptag->same_block;
3949 ptag->hash_ptr->tag_ptr = ptag->same_name;
3950 free_tag (ptag);
3951 }
3952
3953 free_thead (ptag_head);
3954
3955 }
3956
3957 \f
3958 /* Update the global headers with the final offsets in preparation
3959 to write out the .T file. */
3960
3961 STATIC void
3962 update_headers __proto((void))
3963 {
3964 register symint_t i;
3965 register efdr_t *file_ptr;
3966
3967 /* Set up the symbolic header. */
3968 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3969 symbolic_header.magic = orig_sym_hdr.magic;
3970 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3971
3972 /* Set up global counts. */
3973 symbolic_header.issExtMax = ext_strings.num_allocated;
3974 symbolic_header.idnMax = dense_num.num_allocated;
3975 symbolic_header.ifdMax = file_desc.num_allocated;
3976 symbolic_header.iextMax = ext_symbols.num_allocated;
3977 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3978 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3979 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3980 symbolic_header.crfd = orig_sym_hdr.crfd;
3981
3982
3983 /* Loop through each file, figuring out how many local syms,
3984 line numbers, etc. there are. Also, put out end symbol
3985 for the filename. */
3986
3987 for (file_ptr = first_file;
3988 file_ptr != (efdr_t *)0;
3989 file_ptr = file_ptr->next_file)
3990 {
3991 register SYMR *sym_start;
3992 register SYMR *sym;
3993 register SYMR *sym_end_p1;
3994 register FDR *fd_ptr = file_ptr->orig_fdr;
3995
3996 cur_file_ptr = file_ptr;
3997
3998 /* Copy st_Static symbols from the original local symbol table if
3999 they did not get added to the new local symbol table.
4000 This happens with stabs-in-ecoff or if the source file is
4001 compiled without debugging. */
4002 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4003 sym_end_p1 = sym_start + fd_ptr->csym;
4004 for (sym = sym_start; sym < sym_end_p1; sym++)
4005 {
4006 if ((st_t)sym->st == st_Static)
4007 {
4008 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4009 register Size_t len = strlen (str);
4010 register shash_t *hash_ptr;
4011
4012 /* Ignore internal labels. */
4013 if (str[0] == '$' && str[1] == 'L')
4014 continue;
4015 hash_ptr = hash_string (str,
4016 (Ptrdiff_t)len,
4017 &file_ptr->shash_head[0],
4018 (symint_t *)0);
4019 if (hash_ptr == (shash_t *)0)
4020 {
4021 (void) add_local_symbol (str, str + len,
4022 (st_t)sym->st, (sc_t)sym->sc,
4023 (symint_t)sym->value,
4024 (symint_t)indexNil);
4025 }
4026 }
4027 }
4028 (void) add_local_symbol ((const char *)0, (const char *)0,
4029 st_End, sc_Text,
4030 (symint_t)0,
4031 (symint_t)0);
4032
4033 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4034 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4035 symbolic_header.ipdMax += file_ptr->fdr.cpd;
4036
4037 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4038 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4039 symbolic_header.isymMax += file_ptr->fdr.csym;
4040
4041 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4042 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4043 symbolic_header.iauxMax += file_ptr->fdr.caux;
4044
4045 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4046 file_ptr->fdr.issBase = symbolic_header.issMax;
4047 symbolic_header.issMax += file_ptr->fdr.cbSs;
4048 }
4049
4050 #ifndef ALIGN_SYMTABLE_OFFSET
4051 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4052 #endif
4053
4054 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4055 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4056 if (i > 0)
4057 {
4058 symbolic_header.cbLineOffset = file_offset;
4059 file_offset += i;
4060 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4061 }
4062
4063 i = symbolic_header.ioptMax; /* optimization symbols */
4064 if (((long) i) > 0)
4065 {
4066 symbolic_header.cbOptOffset = file_offset;
4067 file_offset += i * sizeof (OPTR);
4068 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4069 }
4070
4071 i = symbolic_header.idnMax; /* dense numbers */
4072 if (i > 0)
4073 {
4074 symbolic_header.cbDnOffset = file_offset;
4075 file_offset += i * sizeof (DNR);
4076 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4077 }
4078
4079 i = symbolic_header.ipdMax; /* procedure tables */
4080 if (i > 0)
4081 {
4082 symbolic_header.cbPdOffset = file_offset;
4083 file_offset += i * sizeof (PDR);
4084 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4085 }
4086
4087 i = symbolic_header.isymMax; /* local symbols */
4088 if (i > 0)
4089 {
4090 symbolic_header.cbSymOffset = file_offset;
4091 file_offset += i * sizeof (SYMR);
4092 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4093 }
4094
4095 i = symbolic_header.iauxMax; /* aux syms. */
4096 if (i > 0)
4097 {
4098 symbolic_header.cbAuxOffset = file_offset;
4099 file_offset += i * sizeof (TIR);
4100 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4101 }
4102
4103 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4104 if (i > 0)
4105 {
4106 symbolic_header.cbSsOffset = file_offset;
4107 file_offset += i;
4108 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4109 }
4110
4111 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4112 if (i > 0)
4113 {
4114 symbolic_header.cbSsExtOffset = file_offset;
4115 file_offset += i;
4116 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4117 }
4118
4119 i = symbolic_header.ifdMax; /* file tables */
4120 if (i > 0)
4121 {
4122 symbolic_header.cbFdOffset = file_offset;
4123 file_offset += i * sizeof (FDR);
4124 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4125 }
4126
4127 i = symbolic_header.crfd; /* relative file descriptors */
4128 if (i > 0)
4129 {
4130 symbolic_header.cbRfdOffset = file_offset;
4131 file_offset += i * sizeof (symint_t);
4132 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4133 }
4134
4135 i = symbolic_header.iextMax; /* external symbols */
4136 if (i > 0)
4137 {
4138 symbolic_header.cbExtOffset = file_offset;
4139 file_offset += i * sizeof (EXTR);
4140 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4141 }
4142 }
4143
4144 \f
4145 /* Write out a varray at a given location. */
4146
4147 STATIC void
4148 write_varray (vp, offset, str)
4149 varray_t *vp; /* virtual array */
4150 off_t offset; /* offset to write varray to */
4151 const char *str; /* string to print out when tracing */
4152 {
4153 int num_write, sys_write;
4154 vlinks_t *ptr;
4155
4156 if (vp->num_allocated == 0)
4157 return;
4158
4159 if (debug)
4160 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4161 vp, offset, vp->num_allocated * vp->object_size, str);
4162
4163 if (file_offset != offset
4164 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4165 pfatal_with_name (object_name);
4166
4167 for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4168 {
4169 num_write = (ptr->next == (vlinks_t *)0)
4170 ? vp->objects_last_page * vp->object_size
4171 : vp->objects_per_page * vp->object_size;
4172
4173 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4174 if (sys_write <= 0)
4175 pfatal_with_name (object_name);
4176
4177 else if (sys_write != num_write)
4178 fatal ("Wrote %d bytes to %s, system returned %d",
4179 num_write,
4180 object_name,
4181 sys_write);
4182
4183 file_offset += num_write;
4184 }
4185 }
4186
4187 \f
4188 /* Write out the symbol table in the object file. */
4189
4190 STATIC void
4191 write_object __proto((void))
4192 {
4193 int sys_write;
4194 efdr_t *file_ptr;
4195 off_t offset;
4196
4197 if (debug)
4198 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4199 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4200 "symbolic header");
4201
4202 sys_write = fwrite ((PTR_T) &symbolic_header,
4203 1,
4204 sizeof (symbolic_header),
4205 object_stream);
4206
4207 if (sys_write < 0)
4208 pfatal_with_name (object_name);
4209
4210 else if (sys_write != sizeof (symbolic_header))
4211 fatal ("Wrote %d bytes to %s, system returned %d",
4212 sizeof (symbolic_header),
4213 object_name,
4214 sys_write);
4215
4216
4217 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4218
4219 if (symbolic_header.cbLine > 0) /* line numbers */
4220 {
4221 long sys_write;
4222
4223 if (file_offset != symbolic_header.cbLineOffset
4224 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4225 pfatal_with_name (object_name);
4226
4227 if (debug)
4228 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4229 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4230 symbolic_header.cbLine, "Line numbers");
4231
4232 sys_write = fwrite ((PTR_T) orig_linenum,
4233 1,
4234 symbolic_header.cbLine,
4235 object_stream);
4236
4237 if (sys_write <= 0)
4238 pfatal_with_name (object_name);
4239
4240 else if (sys_write != symbolic_header.cbLine)
4241 fatal ("Wrote %d bytes to %s, system returned %d",
4242 symbolic_header.cbLine,
4243 object_name,
4244 sys_write);
4245
4246 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4247 }
4248
4249 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4250 {
4251 long sys_write;
4252 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4253
4254 if (file_offset != symbolic_header.cbOptOffset
4255 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4256 pfatal_with_name (object_name);
4257
4258 if (debug)
4259 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4260 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4261 num_write, "Optimizer symbols");
4262
4263 sys_write = fwrite ((PTR_T) orig_opt_syms,
4264 1,
4265 num_write,
4266 object_stream);
4267
4268 if (sys_write <= 0)
4269 pfatal_with_name (object_name);
4270
4271 else if (sys_write != num_write)
4272 fatal ("Wrote %d bytes to %s, system returned %d",
4273 num_write,
4274 object_name,
4275 sys_write);
4276
4277 file_offset = symbolic_header.cbOptOffset + num_write;
4278 }
4279
4280 if (symbolic_header.idnMax > 0) /* dense numbers */
4281 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4282
4283 if (symbolic_header.ipdMax > 0) /* procedure tables */
4284 {
4285 offset = symbolic_header.cbPdOffset;
4286 for (file_ptr = first_file;
4287 file_ptr != (efdr_t *)0;
4288 file_ptr = file_ptr->next_file)
4289 {
4290 write_varray (&file_ptr->procs, offset, "Procedure tables");
4291 offset = file_offset;
4292 }
4293 }
4294
4295 if (symbolic_header.isymMax > 0) /* local symbols */
4296 {
4297 offset = symbolic_header.cbSymOffset;
4298 for (file_ptr = first_file;
4299 file_ptr != (efdr_t *)0;
4300 file_ptr = file_ptr->next_file)
4301 {
4302 write_varray (&file_ptr->symbols, offset, "Local symbols");
4303 offset = file_offset;
4304 }
4305 }
4306
4307 if (symbolic_header.iauxMax > 0) /* aux symbols */
4308 {
4309 offset = symbolic_header.cbAuxOffset;
4310 for (file_ptr = first_file;
4311 file_ptr != (efdr_t *)0;
4312 file_ptr = file_ptr->next_file)
4313 {
4314 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4315 offset = file_offset;
4316 }
4317 }
4318
4319 if (symbolic_header.issMax > 0) /* local strings */
4320 {
4321 offset = symbolic_header.cbSsOffset;
4322 for (file_ptr = first_file;
4323 file_ptr != (efdr_t *)0;
4324 file_ptr = file_ptr->next_file)
4325 {
4326 write_varray (&file_ptr->strings, offset, "Local strings");
4327 offset = file_offset;
4328 }
4329 }
4330
4331 if (symbolic_header.issExtMax > 0) /* external strings */
4332 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4333
4334 if (symbolic_header.ifdMax > 0) /* file tables */
4335 {
4336 offset = symbolic_header.cbFdOffset;
4337 if (file_offset != offset
4338 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4339 pfatal_with_name (object_name);
4340
4341 file_offset = offset;
4342 for (file_ptr = first_file;
4343 file_ptr != (efdr_t *)0;
4344 file_ptr = file_ptr->next_file)
4345 {
4346 if (debug)
4347 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4348 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4349
4350 sys_write = fwrite (&file_ptr->fdr,
4351 1,
4352 sizeof (FDR),
4353 object_stream);
4354
4355 if (sys_write < 0)
4356 pfatal_with_name (object_name);
4357
4358 else if (sys_write != sizeof (FDR))
4359 fatal ("Wrote %d bytes to %s, system returned %d",
4360 sizeof (FDR),
4361 object_name,
4362 sys_write);
4363
4364 file_offset = offset += sizeof (FDR);
4365 }
4366 }
4367
4368 if (symbolic_header.crfd > 0) /* relative file descriptors */
4369 {
4370 long sys_write;
4371 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4372
4373 if (file_offset != symbolic_header.cbRfdOffset
4374 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4375 pfatal_with_name (object_name);
4376
4377 if (debug)
4378 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4379 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4380 num_write, "Relative file descriptors");
4381
4382 sys_write = fwrite (orig_rfds,
4383 1,
4384 num_write,
4385 object_stream);
4386
4387 if (sys_write <= 0)
4388 pfatal_with_name (object_name);
4389
4390 else if (sys_write != num_write)
4391 fatal ("Wrote %d bytes to %s, system returned %d",
4392 num_write,
4393 object_name,
4394 sys_write);
4395
4396 file_offset = symbolic_header.cbRfdOffset + num_write;
4397 }
4398
4399 if (symbolic_header.issExtMax > 0) /* external symbols */
4400 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4401
4402 if (fclose (object_stream) != 0)
4403 pfatal_with_name (object_name);
4404 }
4405
4406 \f
4407 /* Read some bytes at a specified location, and return a pointer. */
4408
4409 STATIC page_t *
4410 read_seek (size, offset, str)
4411 Size_t size; /* # bytes to read */
4412 off_t offset; /* offset to read at */
4413 const char *str; /* name for tracing */
4414 {
4415 page_t *ptr;
4416 long sys_read = 0;
4417
4418 if (size == 0) /* nothing to read */
4419 return (page_t *)0;
4420
4421 if (debug)
4422 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4423 size, offset, file_offset, str);
4424
4425 #ifndef MALLOC_CHECK
4426 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4427 #else
4428 ptr = (page_t *) xcalloc (1, size);
4429 #endif
4430
4431 /* If we need to seek, and the distance is nearby, just do some reads,
4432 to speed things up. */
4433 if (file_offset != offset)
4434 {
4435 symint_t difference = offset - file_offset;
4436
4437 if (difference < 8)
4438 {
4439 char small_buffer[8];
4440
4441 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4442 if (sys_read <= 0)
4443 pfatal_with_name (obj_in_name);
4444
4445 if (sys_read != difference)
4446 fatal ("Wanted to read %d bytes from %s, system returned %d",
4447 size,
4448 obj_in_name,
4449 sys_read);
4450 }
4451 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4452 pfatal_with_name (obj_in_name);
4453 }
4454
4455 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4456 if (sys_read <= 0)
4457 pfatal_with_name (obj_in_name);
4458
4459 if (sys_read != size)
4460 fatal ("Wanted to read %d bytes from %s, system returned %d",
4461 size,
4462 obj_in_name,
4463 sys_read);
4464
4465 file_offset = offset + size;
4466
4467 if (file_offset > max_file_offset)
4468 max_file_offset = file_offset;
4469
4470 return ptr;
4471 }
4472
4473 \f
4474 /* Read the existing object file (and copy to the output object file
4475 if it is different from the input object file), and remove the old
4476 symbol table. */
4477
4478 STATIC void
4479 copy_object __proto((void))
4480 {
4481 char buffer[ PAGE_SIZE ];
4482 register int sys_read;
4483 register int remaining;
4484 register int num_write;
4485 register int sys_write;
4486 register int fd, es;
4487 register int delete_ifd = 0;
4488 register int *remap_file_number;
4489 struct stat stat_buf;
4490
4491 if (debug)
4492 fprintf (stderr, "\tcopy\n");
4493
4494 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4495 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4496 pfatal_with_name (obj_in_name);
4497
4498 sys_read = fread ((PTR_T) &orig_file_header,
4499 1,
4500 sizeof (struct filehdr),
4501 obj_in_stream);
4502
4503 if (sys_read < 0)
4504 pfatal_with_name (obj_in_name);
4505
4506 else if (sys_read == 0 && feof (obj_in_stream))
4507 return; /* create a .T file sans file header */
4508
4509 else if (sys_read < sizeof (struct filehdr))
4510 fatal ("Wanted to read %d bytes from %s, system returned %d",
4511 sizeof (struct filehdr),
4512 obj_in_name,
4513 sys_read);
4514
4515
4516 if (orig_file_header.f_nsyms != sizeof (HDRR))
4517 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4518 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4519
4520
4521 /* Read in the current symbolic header. */
4522 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4523 pfatal_with_name (input_name);
4524
4525 sys_read = fread ((PTR_T) &orig_sym_hdr,
4526 1,
4527 sizeof (orig_sym_hdr),
4528 obj_in_stream);
4529
4530 if (sys_read < 0)
4531 pfatal_with_name (object_name);
4532
4533 else if (sys_read < sizeof (struct filehdr))
4534 fatal ("Wanted to read %d bytes from %s, system returned %d",
4535 sizeof (struct filehdr),
4536 obj_in_name,
4537 sys_read);
4538
4539
4540 /* Read in each of the sections if they exist in the object file.
4541 We read things in in the order the mips assembler creates the
4542 sections, so in theory no extra seeks are done.
4543
4544 For simplicity sake, round each read up to a page boundary,
4545 we may want to revisit this later.... */
4546
4547 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4548
4549 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4550 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4551 orig_sym_hdr.cbLineOffset,
4552 "Line numbers");
4553
4554 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4555 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4556 orig_sym_hdr.cbPdOffset,
4557 "Procedure tables");
4558
4559 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4560 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4561 orig_sym_hdr.cbSymOffset,
4562 "Local symbols");
4563
4564 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4565 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4566 orig_sym_hdr.cbAuxOffset,
4567 "Aux. symbols");
4568
4569 if (orig_sym_hdr.issMax > 0) /* local strings */
4570 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4571 orig_sym_hdr.cbSsOffset,
4572 "Local strings");
4573
4574 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4575 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4576 orig_sym_hdr.cbSsExtOffset,
4577 "External strings");
4578
4579 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4580 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4581 orig_sym_hdr.cbFdOffset,
4582 "File tables");
4583
4584 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4585 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4586 orig_sym_hdr.cbRfdOffset,
4587 "Relative file descriptors");
4588
4589 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4590 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4591 orig_sym_hdr.cbExtOffset,
4592 "External symbols");
4593
4594 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4595 {
4596 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4597 orig_sym_hdr.cbDnOffset,
4598 "Dense numbers");
4599
4600 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4601 }
4602
4603 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4604 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4605 orig_sym_hdr.cbOptOffset,
4606 "Optimizer symbols");
4607
4608
4609
4610 /* Abort if the symbol table is not last. */
4611 if (max_file_offset != stat_buf.st_size)
4612 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4613 max_file_offset,
4614 stat_buf.st_size);
4615
4616
4617 /* If the first original file descriptor is a dummy which the assembler
4618 put out, but there are no symbols in it, skip it now. */
4619 if (orig_sym_hdr.ifdMax > 1
4620 && orig_files->csym == 2
4621 && orig_files->caux == 0)
4622 {
4623 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4624 char *suffix = local_rindex (filename, '.');
4625
4626 if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4627 delete_ifd = 1;
4628 }
4629
4630
4631 /* Create array to map original file numbers to the new file numbers
4632 (in case there are duplicate filenames, we collapse them into one
4633 file section, the MIPS assembler may or may not collapse them). */
4634
4635 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4636
4637 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4638 {
4639 register FDR *fd_ptr = ORIG_FILES (fd);
4640 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4641
4642 /* file support itself. */
4643 add_file (filename, filename + strlen (filename));
4644 remap_file_number[fd] = cur_file_ptr->file_index;
4645 }
4646
4647 if (delete_ifd > 0) /* just in case */
4648 remap_file_number[0] = remap_file_number[1];
4649
4650
4651 /* Loop, adding each of the external symbols. These must be in
4652 order or otherwise we would have to change the relocation
4653 entries. We don't just call add_bytes, because we need to have
4654 the names put into the external hash table. We set the type to
4655 'void' for now, and parse_def will fill in the correct type if it
4656 is in the symbol table. We must add the external symbols before
4657 the locals, since the locals do lookups against the externals. */
4658
4659 if (debug)
4660 fprintf (stderr, "\tehash\n");
4661
4662 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4663 {
4664 register EXTR *eptr = orig_ext_syms + es;
4665 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4666 register unsigned ifd = eptr->ifd;
4667
4668 (void) add_ext_symbol (ename,
4669 ename + strlen (ename),
4670 (st_t) eptr->asym.st,
4671 (sc_t) eptr->asym.sc,
4672 eptr->asym.value,
4673 (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4674 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4675 }
4676
4677
4678 /* For each of the files in the object file, copy the symbols, and such
4679 into the varrays for the new object file. */
4680
4681 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4682 {
4683 register FDR *fd_ptr = ORIG_FILES (fd);
4684 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4685 register SYMR *sym_start;
4686 register SYMR *sym;
4687 register SYMR *sym_end_p1;
4688 register PDR *proc_start;
4689 register PDR *proc;
4690 register PDR *proc_end_p1;
4691
4692 /* file support itself. */
4693 add_file (filename, filename + strlen (filename));
4694 cur_file_ptr->orig_fdr = fd_ptr;
4695
4696 /* Copy stuff that's just passed through (such as line #'s) */
4697 cur_file_ptr->fdr.adr = fd_ptr->adr;
4698 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4699 cur_file_ptr->fdr.cline = fd_ptr->cline;
4700 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4701 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4702 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4703 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4704 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4705 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4706 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4707
4708 if (debug)
4709 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4710
4711 /* For each of the static and global symbols defined, add them
4712 to the hash table of original symbols, so we can look up
4713 their values. */
4714
4715 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4716 sym_end_p1 = sym_start + fd_ptr->csym;
4717 for (sym = sym_start; sym < sym_end_p1; sym++)
4718 {
4719 switch ((st_t) sym->st)
4720 {
4721 default:
4722 break;
4723
4724 case st_Global:
4725 case st_Static:
4726 case st_Label:
4727 case st_Proc:
4728 case st_StaticProc:
4729 {
4730 auto symint_t hash_index;
4731 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4732 register Size_t len = strlen (str);
4733 register shash_t *shash_ptr = hash_string (str,
4734 (Ptrdiff_t)len,
4735 &orig_str_hash[0],
4736 &hash_index);
4737
4738 if (shash_ptr != (shash_t *)0)
4739 error ("internal error, %s is already in original symbol table", str);
4740
4741 else
4742 {
4743 shash_ptr = allocate_shash ();
4744 shash_ptr->next = orig_str_hash[hash_index];
4745 orig_str_hash[hash_index] = shash_ptr;
4746
4747 shash_ptr->len = len;
4748 shash_ptr->indx = indexNil;
4749 shash_ptr->string = str;
4750 shash_ptr->sym_ptr = sym;
4751 }
4752 }
4753 break;
4754
4755 case st_End:
4756 if ((sc_t) sym->sc == sc_Text)
4757 {
4758 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4759
4760 if (*str != '\0')
4761 {
4762 register Size_t len = strlen (str);
4763 register shash_t *shash_ptr = hash_string (str,
4764 (Ptrdiff_t)len,
4765 &orig_str_hash[0],
4766 (symint_t *)0);
4767
4768 if (shash_ptr != (shash_t *)0)
4769 shash_ptr->end_ptr = sym;
4770 }
4771 }
4772 break;
4773
4774 }
4775 }
4776
4777 if (debug)
4778 {
4779 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4780 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4781 }
4782
4783 /* Go through each of the procedures in this file, and add the
4784 procedure pointer to the hash entry for the given name. */
4785
4786 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4787 proc_end_p1 = proc_start + fd_ptr->cpd;
4788 for (proc = proc_start; proc < proc_end_p1; proc++)
4789 {
4790 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4791 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4792 register Size_t len = strlen (str);
4793 register shash_t *shash_ptr = hash_string (str,
4794 (Ptrdiff_t)len,
4795 &orig_str_hash[0],
4796 (symint_t *)0);
4797
4798 if (shash_ptr == (shash_t *)0)
4799 error ("internal error, function %s is not in original symbol table", str);
4800
4801 else
4802 shash_ptr->proc_ptr = proc;
4803 }
4804
4805 if (debug)
4806 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4807
4808 }
4809 cur_file_ptr = first_file;
4810
4811
4812 /* Copy all of the object file up to the symbol table. Originally
4813 we were going to use ftruncate, but that doesn't seem to work
4814 on Ultrix 3.1.... */
4815
4816 if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4817 pfatal_with_name (obj_in_name);
4818
4819 if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4820 pfatal_with_name (object_name);
4821
4822 for (remaining = orig_file_header.f_symptr;
4823 remaining > 0;
4824 remaining -= num_write)
4825 {
4826 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4827 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4828 if (sys_read <= 0)
4829 pfatal_with_name (obj_in_name);
4830
4831 else if (sys_read != num_write)
4832 fatal ("Wanted to read %d bytes from %s, system returned %d",
4833 num_write,
4834 obj_in_name,
4835 sys_read);
4836
4837 sys_write = fwrite (buffer, 1, num_write, object_stream);
4838 if (sys_write <= 0)
4839 pfatal_with_name (object_name);
4840
4841 else if (sys_write != num_write)
4842 fatal ("Wrote %d bytes to %s, system returned %d",
4843 num_write,
4844 object_name,
4845 sys_write);
4846 }
4847 }
4848
4849 \f
4850 /* Ye olde main program. */
4851
4852 int
4853 main (argc, argv)
4854 int argc;
4855 char *argv[];
4856 {
4857 int iflag = 0;
4858 char *p = local_rindex (argv[0], '/');
4859 char *num_end;
4860 int option;
4861 int i;
4862
4863 progname = (p != 0) ? p+1 : argv[0];
4864
4865 (void) signal (SIGSEGV, catch_signal);
4866 (void) signal (SIGBUS, catch_signal);
4867 (void) signal (SIGABRT, catch_signal);
4868
4869 #if !defined(__SABER__) && !defined(lint)
4870 if (sizeof (efdr_t) > PAGE_USIZE)
4871 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4872 sizeof (efdr_t),
4873 PAGE_USIZE);
4874
4875 if (sizeof (page_t) != PAGE_USIZE)
4876 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4877 sizeof (page_t),
4878 PAGE_USIZE);
4879
4880 #endif
4881
4882 alloc_counts[ alloc_type_none ].alloc_name = "none";
4883 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4884 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4885 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4886 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4887 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4888 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4889 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4890 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4891
4892 int_type_info = type_info_init;
4893 int_type_info.basic_type = bt_Int;
4894
4895 void_type_info = type_info_init;
4896 void_type_info.basic_type = bt_Void;
4897
4898 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4899 switch (option)
4900 {
4901 default:
4902 had_errors++;
4903 break;
4904
4905 case 'd':
4906 debug = strtol (optarg, &num_end, 0);
4907 if ((unsigned)debug > 4 || num_end == optarg)
4908 had_errors++;
4909
4910 break;
4911
4912 case 'I':
4913 if (rename_output || obj_in_name != (char *)0)
4914 had_errors++;
4915 else
4916 rename_output = 1;
4917
4918 /* fall through to 'i' case. */
4919
4920 case 'i':
4921 if (obj_in_name == (char *)0)
4922 {
4923 obj_in_name = optarg;
4924 iflag++;
4925 }
4926 else
4927 had_errors++;
4928 break;
4929
4930 case 'o':
4931 if (object_name == (char *)0)
4932 object_name = optarg;
4933 else
4934 had_errors++;
4935 break;
4936
4937 case 'v':
4938 version++;
4939 break;
4940 }
4941
4942 if (obj_in_name == (char *)0 && optind <= argc - 2)
4943 obj_in_name = argv[--argc];
4944
4945 if (object_name == (char *)0 && optind <= argc - 2)
4946 object_name = argv[--argc];
4947
4948 /* If there is an output name, but no input name use
4949 the same file for both, deleting the name between
4950 opening it for input and opening it for output. */
4951 if (obj_in_name == (char *)0 && object_name != (char *)0)
4952 {
4953 obj_in_name = object_name;
4954 delete_input = 1;
4955 }
4956
4957 if (object_name == (char *)0 || had_errors || optind != argc - 1)
4958 {
4959 fprintf (stderr, "Calling Sequence:\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] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4962 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4963 fprintf (stderr, "\n");
4964 fprintf (stderr, "Debug levels are:\n");
4965 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4966 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4967 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4968 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4969 return 1;
4970 }
4971
4972
4973 if (version)
4974 {
4975 fprintf (stderr, "mips-tfile version %s", version_string);
4976 #ifdef TARGET_VERSION
4977 TARGET_VERSION;
4978 #endif
4979 fputc ('\n', stderr);
4980 }
4981
4982 if (obj_in_name == (char *)0)
4983 obj_in_name = object_name;
4984
4985 if (rename_output && rename (object_name, obj_in_name) != 0)
4986 {
4987 char *buffer = (char *) allocate_multiple_pages (4);
4988 int len;
4989 int len2;
4990 int in_fd;
4991 int out_fd;
4992
4993 /* Rename failed, copy input file */
4994 in_fd = open (object_name, O_RDONLY, 0666);
4995 if (in_fd < 0)
4996 pfatal_with_name (object_name);
4997
4998 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4999 if (out_fd < 0)
5000 pfatal_with_name (obj_in_name);
5001
5002 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5003 {
5004 len2 = write (out_fd, buffer, len);
5005 if (len2 < 0)
5006 pfatal_with_name (object_name);
5007
5008 if (len != len2)
5009 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5010 }
5011
5012 free_multiple_pages ((page_t *)buffer, 4);
5013
5014 if (len < 0)
5015 pfatal_with_name (object_name);
5016
5017 if (close (in_fd) < 0)
5018 pfatal_with_name (object_name);
5019
5020 if (close (out_fd) < 0)
5021 pfatal_with_name (obj_in_name);
5022 }
5023
5024 /* Must open input before output, since the output may be the same file, and
5025 we need to get the input handle before truncating it. */
5026 obj_in_stream = fopen (obj_in_name, "r");
5027 if (obj_in_stream == (FILE *)0)
5028 pfatal_with_name (obj_in_name);
5029
5030 if (delete_input && unlink (obj_in_name) != 0)
5031 pfatal_with_name (obj_in_name);
5032
5033 object_stream = fopen (object_name, "w");
5034 if (object_stream == (FILE *)0)
5035 pfatal_with_name (object_name);
5036
5037 if (strcmp (argv[optind], "-") != 0)
5038 {
5039 input_name = argv[optind];
5040 if (freopen (argv[optind], "r", stdin) != stdin)
5041 pfatal_with_name (argv[optind]);
5042 }
5043
5044 copy_object (); /* scan & copy object file */
5045 parse_input (); /* scan all of input */
5046
5047 update_headers (); /* write out tfile */
5048 write_object ();
5049
5050 if (debug)
5051 {
5052 fprintf (stderr, "\n\tAllocation summary:\n\n");
5053 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5054 if (alloc_counts[i].total_alloc)
5055 {
5056 fprintf (stderr,
5057 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5058 alloc_counts[i].alloc_name,
5059 alloc_counts[i].total_alloc,
5060 alloc_counts[i].total_free,
5061 alloc_counts[i].total_pages);
5062 }
5063 }
5064
5065 return (had_errors) ? 1 : 0;
5066 }
5067
5068 \f
5069 /* Catch a signal and exit without dumping core. */
5070
5071 STATIC void
5072 catch_signal (signum)
5073 int signum;
5074 {
5075 (void) signal (signum, SIG_DFL); /* just in case... */
5076 #ifdef NO_SYS_SIGLIST
5077 fatal ("caught signal");
5078 #else
5079 fatal (sys_siglist[signum]);
5080 #endif
5081 }
5082
5083 /* Print a fatal error message. NAME is the text.
5084 Also include a system error message based on `errno'. */
5085
5086 void
5087 pfatal_with_name (msg)
5088 char *msg;
5089 {
5090 int save_errno = errno; /* just in case.... */
5091 if (line_number > 0)
5092 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5093 else
5094 fprintf (stderr, "%s:", progname);
5095
5096 errno = save_errno;
5097 if (errno == 0)
5098 fprintf (stderr, "[errno = 0] %s\n", msg);
5099 else
5100 perror (msg);
5101
5102 exit (1);
5103 }
5104
5105 \f
5106 /* Procedure to abort with an out of bounds error message. It has
5107 type int, so it can be used with an ?: expression within the
5108 ORIG_xxx macros, but the function never returns. */
5109
5110 static int
5111 out_of_bounds (indx, max, str, prog_line)
5112 symint_t indx; /* index that is out of bounds */
5113 symint_t max; /* maximum index */
5114 const char *str; /* string to print out */
5115 int prog_line; /* line number within mips-tfile.c */
5116 {
5117 if (indx < max) /* just in case */
5118 return 0;
5119
5120 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5121 progname, input_name, line_number, indx, str, max, prog_line);
5122
5123 exit (1);
5124 return 0; /* turn off warning messages */
5125 }
5126
5127 \f
5128 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5129 like sbrk's behind it's back (or sbrk isn't available). If we use
5130 sbrk, we assume it gives us zeroed pages. */
5131
5132 #ifndef MALLOC_CHECK
5133 #ifdef USE_MALLOC
5134
5135 STATIC page_t *
5136 allocate_cluster (npages)
5137 Size_t npages;
5138 {
5139 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5140
5141 if (value == 0)
5142 fatal ("Virtual memory exhausted.");
5143
5144 if (debug > 3)
5145 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5146
5147 return value;
5148 }
5149
5150 #else /* USE_MALLOC */
5151
5152 STATIC page_t *
5153 allocate_cluster (npages)
5154 Size_t npages;
5155 {
5156 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5157 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5158
5159 if (offset != 0) /* align to a page boundary */
5160 {
5161 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5162 pfatal_with_name ("allocate_cluster");
5163
5164 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5165 }
5166
5167 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5168 pfatal_with_name ("allocate_cluster");
5169
5170 if (debug > 3)
5171 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5172
5173 return ptr;
5174 }
5175
5176 #endif /* USE_MALLOC */
5177
5178
5179 static page_t *cluster_ptr = NULL;
5180 static unsigned pages_left = 0;
5181
5182 #endif /* MALLOC_CHECK */
5183
5184
5185 /* Allocate some pages (which is initialized to 0). */
5186
5187 STATIC page_t *
5188 allocate_multiple_pages (npages)
5189 Size_t npages;
5190 {
5191 #ifndef MALLOC_CHECK
5192 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5193 {
5194 pages_left = MAX_CLUSTER_PAGES;
5195 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5196 }
5197
5198 if (npages <= pages_left)
5199 {
5200 page_t *ptr = cluster_ptr;
5201 cluster_ptr += npages;
5202 pages_left -= npages;
5203 return ptr;
5204 }
5205
5206 return allocate_cluster (npages);
5207
5208 #else /* MALLOC_CHECK */
5209 return (page_t *) xcalloc (npages, PAGE_SIZE);
5210
5211 #endif /* MALLOC_CHECK */
5212 }
5213
5214
5215 /* Release some pages. */
5216
5217 STATIC void
5218 free_multiple_pages (page_ptr, npages)
5219 page_t *page_ptr;
5220 Size_t npages;
5221 {
5222 #ifndef MALLOC_CHECK
5223 if (pages_left == 0)
5224 {
5225 cluster_ptr = page_ptr;
5226 pages_left = npages;
5227 }
5228
5229 else if ((page_ptr + npages) == cluster_ptr)
5230 {
5231 cluster_ptr -= npages;
5232 pages_left += npages;
5233 }
5234
5235 /* otherwise the page is not freed. If more than call is
5236 done, we probably should worry about it, but at present,
5237 the free pages is done right after an allocate. */
5238
5239 #else /* MALLOC_CHECK */
5240 free ((char *) page_ptr);
5241
5242 #endif /* MALLOC_CHECK */
5243 }
5244
5245
5246 /* Allocate one page (which is initialized to 0). */
5247
5248 STATIC page_t *
5249 allocate_page __proto((void))
5250 {
5251 #ifndef MALLOC_CHECK
5252 if (pages_left == 0)
5253 {
5254 pages_left = MAX_CLUSTER_PAGES;
5255 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5256 }
5257
5258 pages_left--;
5259 return cluster_ptr++;
5260
5261 #else /* MALLOC_CHECK */
5262 return (page_t *) xcalloc (1, PAGE_SIZE);
5263
5264 #endif /* MALLOC_CHECK */
5265 }
5266
5267 \f
5268 /* Allocate scoping information. */
5269
5270 STATIC scope_t *
5271 allocate_scope __proto((void))
5272 {
5273 register scope_t *ptr;
5274 static scope_t initial_scope;
5275
5276 #ifndef MALLOC_CHECK
5277 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5278 if (ptr != (scope_t *)0)
5279 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5280
5281 else
5282 {
5283 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5284 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5285
5286 if (unallocated == 0)
5287 {
5288 unallocated = PAGE_SIZE / sizeof (scope_t);
5289 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5290 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5291 }
5292
5293 ptr = &cur_page->scope[ --unallocated ];
5294 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5295 }
5296
5297 #else
5298 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5299
5300 #endif
5301
5302 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5303 *ptr = initial_scope;
5304 return ptr;
5305 }
5306
5307 /* Free scoping information. */
5308
5309 STATIC void
5310 free_scope (ptr)
5311 scope_t *ptr;
5312 {
5313 alloc_counts[ (int)alloc_type_scope ].total_free++;
5314
5315 #ifndef MALLOC_CHECK
5316 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5317 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5318
5319 #else
5320 xfree ((PTR_T) ptr);
5321 #endif
5322
5323 }
5324
5325 \f
5326 /* Allocate links for pages in a virtual array. */
5327
5328 STATIC vlinks_t *
5329 allocate_vlinks __proto((void))
5330 {
5331 register vlinks_t *ptr;
5332 static vlinks_t initial_vlinks;
5333
5334 #ifndef MALLOC_CHECK
5335 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5336 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5337
5338 if (unallocated == 0)
5339 {
5340 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5341 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5342 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5343 }
5344
5345 ptr = &cur_page->vlinks[ --unallocated ];
5346 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5347
5348 #else
5349 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5350
5351 #endif
5352
5353 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5354 *ptr = initial_vlinks;
5355 return ptr;
5356 }
5357
5358 \f
5359 /* Allocate string hash buckets. */
5360
5361 STATIC shash_t *
5362 allocate_shash __proto((void))
5363 {
5364 register shash_t *ptr;
5365 static shash_t initial_shash;
5366
5367 #ifndef MALLOC_CHECK
5368 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5369 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5370
5371 if (unallocated == 0)
5372 {
5373 unallocated = PAGE_SIZE / sizeof (shash_t);
5374 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5375 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5376 }
5377
5378 ptr = &cur_page->shash[ --unallocated ];
5379 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5380
5381 #else
5382 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5383
5384 #endif
5385
5386 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5387 *ptr = initial_shash;
5388 return ptr;
5389 }
5390
5391 \f
5392 /* Allocate type hash buckets. */
5393
5394 STATIC thash_t *
5395 allocate_thash __proto((void))
5396 {
5397 register thash_t *ptr;
5398 static thash_t initial_thash;
5399
5400 #ifndef MALLOC_CHECK
5401 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5402 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5403
5404 if (unallocated == 0)
5405 {
5406 unallocated = PAGE_SIZE / sizeof (thash_t);
5407 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5408 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5409 }
5410
5411 ptr = &cur_page->thash[ --unallocated ];
5412 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5413
5414 #else
5415 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5416
5417 #endif
5418
5419 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5420 *ptr = initial_thash;
5421 return ptr;
5422 }
5423
5424 \f
5425 /* Allocate structure, union, or enum tag information. */
5426
5427 STATIC tag_t *
5428 allocate_tag __proto((void))
5429 {
5430 register tag_t *ptr;
5431 static tag_t initial_tag;
5432
5433 #ifndef MALLOC_CHECK
5434 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5435 if (ptr != (tag_t *)0)
5436 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5437
5438 else
5439 {
5440 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5441 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5442
5443 if (unallocated == 0)
5444 {
5445 unallocated = PAGE_SIZE / sizeof (tag_t);
5446 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5447 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5448 }
5449
5450 ptr = &cur_page->tag[ --unallocated ];
5451 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5452 }
5453
5454 #else
5455 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5456
5457 #endif
5458
5459 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5460 *ptr = initial_tag;
5461 return ptr;
5462 }
5463
5464 /* Free scoping information. */
5465
5466 STATIC void
5467 free_tag (ptr)
5468 tag_t *ptr;
5469 {
5470 alloc_counts[ (int)alloc_type_tag ].total_free++;
5471
5472 #ifndef MALLOC_CHECK
5473 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5474 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5475
5476 #else
5477 xfree ((PTR_T) ptr);
5478 #endif
5479
5480 }
5481
5482 \f
5483 /* Allocate forward reference to a yet unknown tag. */
5484
5485 STATIC forward_t *
5486 allocate_forward __proto((void))
5487 {
5488 register forward_t *ptr;
5489 static forward_t initial_forward;
5490
5491 #ifndef MALLOC_CHECK
5492 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5493 if (ptr != (forward_t *)0)
5494 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5495
5496 else
5497 {
5498 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5499 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5500
5501 if (unallocated == 0)
5502 {
5503 unallocated = PAGE_SIZE / sizeof (forward_t);
5504 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5505 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5506 }
5507
5508 ptr = &cur_page->forward[ --unallocated ];
5509 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5510 }
5511
5512 #else
5513 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5514
5515 #endif
5516
5517 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5518 *ptr = initial_forward;
5519 return ptr;
5520 }
5521
5522 /* Free scoping information. */
5523
5524 STATIC void
5525 free_forward (ptr)
5526 forward_t *ptr;
5527 {
5528 alloc_counts[ (int)alloc_type_forward ].total_free++;
5529
5530 #ifndef MALLOC_CHECK
5531 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5532 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5533
5534 #else
5535 xfree ((PTR_T) ptr);
5536 #endif
5537
5538 }
5539
5540 \f
5541 /* Allocate head of type hash list. */
5542
5543 STATIC thead_t *
5544 allocate_thead __proto((void))
5545 {
5546 register thead_t *ptr;
5547 static thead_t initial_thead;
5548
5549 #ifndef MALLOC_CHECK
5550 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5551 if (ptr != (thead_t *)0)
5552 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5553
5554 else
5555 {
5556 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5557 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5558
5559 if (unallocated == 0)
5560 {
5561 unallocated = PAGE_SIZE / sizeof (thead_t);
5562 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5563 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5564 }
5565
5566 ptr = &cur_page->thead[ --unallocated ];
5567 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5568 }
5569
5570 #else
5571 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5572
5573 #endif
5574
5575 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5576 *ptr = initial_thead;
5577 return ptr;
5578 }
5579
5580 /* Free scoping information. */
5581
5582 STATIC void
5583 free_thead (ptr)
5584 thead_t *ptr;
5585 {
5586 alloc_counts[ (int)alloc_type_thead ].total_free++;
5587
5588 #ifndef MALLOC_CHECK
5589 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5590 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5591
5592 #else
5593 xfree ((PTR_T) ptr);
5594 #endif
5595
5596 }
5597
5598 #endif /* MIPS_DEBUGGING_INFO */
5599
5600 \f
5601 #ifdef HAVE_VPRINTF
5602
5603 /* Output an error message and exit */
5604
5605 /*VARARGS*/
5606 void
5607 fatal VPROTO((const char *format, ...))
5608 {
5609 #ifndef __STDC__
5610 char *format;
5611 #endif
5612 va_list ap;
5613
5614 VA_START (ap, format);
5615
5616 #ifndef __STDC__
5617 format = va_arg (ap, char*);
5618 #endif
5619
5620 if (line_number > 0)
5621 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5622 else
5623 fprintf (stderr, "%s:", progname);
5624
5625 vfprintf (stderr, format, ap);
5626 va_end (ap);
5627 fprintf (stderr, "\n");
5628 if (line_number > 0)
5629 fprintf (stderr, "line:\t%s\n", cur_line_start);
5630
5631 saber_stop ();
5632 exit (1);
5633 }
5634
5635 /*VARARGS*/
5636 void
5637 error VPROTO((const char *format, ...))
5638 {
5639 #ifndef __STDC__
5640 char *format;
5641 #endif
5642 va_list ap;
5643
5644 VA_START (ap, format);
5645
5646 #ifndef __STDC__
5647 format = va_arg (ap, char*);
5648 #endif
5649
5650 if (line_number > 0)
5651 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5652 else
5653 fprintf (stderr, "%s:", progname);
5654
5655 vfprintf (stderr, format, ap);
5656 fprintf (stderr, "\n");
5657 if (line_number > 0)
5658 fprintf (stderr, "line:\t%s\n", cur_line_start);
5659
5660 had_errors++;
5661 va_end (ap);
5662
5663 saber_stop ();
5664 }
5665
5666 #else /* not HAVE_VPRINTF */
5667
5668 void
5669 fatal (msg, arg1, arg2)
5670 char *msg, *arg1, *arg2;
5671 {
5672 error (msg, arg1, arg2);
5673 exit (1);
5674 }
5675
5676 void
5677 error (msg, arg1, arg2)
5678 char *msg, *arg1, *arg2;
5679 {
5680 fprintf (stderr, "%s: ", progname);
5681 fprintf (stderr, msg, arg1, arg2);
5682 fprintf (stderr, "\n");
5683 }
5684
5685 #endif /* not HAVE_VPRINTF */
5686
5687 /* More 'friendly' abort that prints the line and file.
5688 config.h can #define abort fancy_abort if you like that sort of thing. */
5689
5690 void
5691 fancy_abort ()
5692 {
5693 fatal ("Internal abort.");
5694 }
5695 \f
5696
5697 /* When `malloc.c' is compiled with `rcheck' defined,
5698 it calls this function to report clobberage. */
5699
5700 void
5701 botch (s)
5702 const char *s;
5703 {
5704 fatal (s);
5705 }
5706
5707 /* Same as `malloc' but report error if no memory available. */
5708
5709 PTR_T
5710 xmalloc (size)
5711 Size_t size;
5712 {
5713 register PTR_T value = malloc (size);
5714 if (value == 0)
5715 fatal ("Virtual memory exhausted.");
5716
5717 if (debug > 3)
5718 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5719
5720 return value;
5721 }
5722
5723 /* Same as `calloc' but report error if no memory available. */
5724
5725 PTR_T
5726 xcalloc (size1, size2)
5727 Size_t size1, size2;
5728 {
5729 register PTR_T value = calloc (size1, size2);
5730 if (value == 0)
5731 fatal ("Virtual memory exhausted.");
5732
5733 if (debug > 3)
5734 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5735 value, size1, size2, size1+size2);
5736
5737 return value;
5738 }
5739
5740 /* Same as `realloc' but report error if no memory available. */
5741
5742 PTR_T
5743 xrealloc (ptr, size)
5744 PTR_T ptr;
5745 Size_t size;
5746 {
5747 register PTR_T result = realloc (ptr, size);
5748 if (!result)
5749 fatal ("Virtual memory exhausted.");
5750
5751 if (debug > 3)
5752 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5753 result, size, ptr);
5754
5755 return result;
5756 }
5757
5758 void
5759 xfree (ptr)
5760 PTR_T ptr;
5761 {
5762 if (debug > 3)
5763 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5764
5765 free (ptr);
5766 }
5767
5768 \f
5769 /* Define our own index/rindex, since the local and global symbol
5770 structures as defined by MIPS has an 'index' field. */
5771
5772 STATIC char *
5773 local_index (str, sentinel)
5774 const char *str;
5775 int sentinel;
5776 {
5777 int ch;
5778
5779 for ( ; (ch = *str) != sentinel; str++)
5780 {
5781 if (ch == '\0')
5782 return (char *)0;
5783 }
5784
5785 return (char *)str;
5786 }
5787
5788 STATIC char *
5789 local_rindex (str, sentinel)
5790 const char *str;
5791 int sentinel;
5792 {
5793 int ch;
5794 const char *ret = (const char *)0;
5795
5796 for ( ; (ch = *str) != '\0'; str++)
5797 {
5798 if (ch == sentinel)
5799 ret = str;
5800 }
5801
5802 return (char *)ret;
5803 }
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