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[official-gcc.git] / gcc / mips-tfile.c
blob0922bf1ad14d21a9087fa7cb8b17061b7dcaa8dd
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 93, 94, 95, 97, 1998 Free Software Foundation, Inc.
6 Contributed by Michael Meissner (meissner@cygnus.com).
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #include "system.h"
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #ifdef __STDC__
614 typedef void *PTR_T;
615 typedef const void *CPTR_T;
616 #define __proto(x) x
617 #ifndef VPROTO
618 #define PVPROTO(ARGS) ARGS
619 #define VPROTO(ARGS) ARGS
620 #define VA_START(va_list,var) va_start(va_list,var)
621 #endif
622 #else
623
624 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
625 typedef void *PTR_T;
626 typedef void *CPTR_T;
627
628 #else
629 typedef char *PTR_T; /* Ultrix 3.1 */
630 typedef char *CPTR_T;
631 #endif
632
633 #define __proto(x) ()
634 #define const
635 #ifndef VPROTO
636 #define PVPROTO(ARGS) ()
637 #define VPROTO(ARGS) (va_alist) va_dcl
638 #define VA_START(va_list,var) va_start(va_list)
639 #endif
640 #endif
641
642 /* Do to size_t being defined in sys/types.h and different
643 in stddef.h, we have to do this by hand..... Note, these
644 types are correct for MIPS based systems, and may not be
645 correct for other systems. Ultrix 4.0 and Silicon Graphics
646 have this fixed, but since the following is correct, and
647 the fact that including stddef.h gets you GCC's version
648 instead of the standard one it's not worth it to fix it. */
649
650 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
651 #define Size_t long unsigned int
652 #else
653 #define Size_t unsigned int
654 #endif
655 #define Ptrdiff_t long
656
657 /* The following might be called from obstack or malloc,
658 so they can't be static. */
659
660 extern void pfatal_with_name
661 __proto((char *));
662 extern void fancy_abort __proto((void));
663 void botch __proto((const char *));
664 extern PTR_T xmalloc __proto((Size_t));
665 extern PTR_T xcalloc __proto((Size_t, Size_t));
666 extern PTR_T xrealloc __proto((PTR_T, Size_t));
667 extern void xfree __proto((PTR_T));
668
669 extern void fatal PVPROTO((const char *format, ...));
670 extern void error PVPROTO((const char *format, ...));
671 \f
672 #ifndef MIPS_DEBUGGING_INFO
673
674 static int line_number;
675 static int cur_line_start;
676 static int debug;
677 static int had_errors;
678 static char *progname;
679 static char *input_name;
680
681 int
682 main ()
683 {
684 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
685 exit (1);
686 }
687
688 #else /* MIPS_DEBUGGING defined */
689 \f
690 /* The local and global symbols have a field index, so undo any defines
691 of index -> strchr and rindex -> strrchr. */
692
693 #undef rindex
694 #undef index
695
696 #include <signal.h>
697 #include <sys/stat.h>
698
699 #ifndef CROSS_COMPILE
700 #include <a.out.h>
701 #else
702 #include "mips/a.out.h"
703 #endif /* CROSS_COMPILE */
704
705 #if defined (USG) || !defined (HAVE_STAB_H)
706 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
707 #else
708 #include <stab.h> /* On BSD, use the system's stab.h. */
709 #endif /* not USG */
710
711 #include "machmode.h"
712
713 #ifdef __GNU_STAB__
714 #define STAB_CODE_TYPE enum __stab_debug_code
715 #else
716 #define STAB_CODE_TYPE int
717 #endif
718
719 #ifndef MALLOC_CHECK
720 #ifdef __SABER__
721 #define MALLOC_CHECK
722 #endif
723 #endif
724
725 #define IS_ASM_IDENT(ch) \
726 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
727
728 \f
729 /* Redefinition of storage classes as an enumeration for better
730 debugging. */
731
732 typedef enum sc {
733 sc_Nil = scNil, /* no storage class */
734 sc_Text = scText, /* text symbol */
735 sc_Data = scData, /* initialized data symbol */
736 sc_Bss = scBss, /* un-initialized data symbol */
737 sc_Register = scRegister, /* value of symbol is register number */
738 sc_Abs = scAbs, /* value of symbol is absolute */
739 sc_Undefined = scUndefined, /* who knows? */
740 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
741 sc_Bits = scBits, /* this is a bit field */
742 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
743 sc_RegImage = scRegImage, /* register value saved on stack */
744 sc_Info = scInfo, /* symbol contains debugger information */
745 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
746 sc_SData = scSData, /* load time only small data */
747 sc_SBss = scSBss, /* load time only small common */
748 sc_RData = scRData, /* load time only read only data */
749 sc_Var = scVar, /* Var parameter (fortran,pascal) */
750 sc_Common = scCommon, /* common variable */
751 sc_SCommon = scSCommon, /* small common */
752 sc_VarRegister = scVarRegister, /* Var parameter in a register */
753 sc_Variant = scVariant, /* Variant record */
754 sc_SUndefined = scSUndefined, /* small undefined(external) data */
755 sc_Init = scInit, /* .init section symbol */
756 sc_Max = scMax /* Max storage class+1 */
757 } sc_t;
758
759 /* Redefinition of symbol type. */
760
761 typedef enum st {
762 st_Nil = stNil, /* Nuthin' special */
763 st_Global = stGlobal, /* external symbol */
764 st_Static = stStatic, /* static */
765 st_Param = stParam, /* procedure argument */
766 st_Local = stLocal, /* local variable */
767 st_Label = stLabel, /* label */
768 st_Proc = stProc, /* " " Procedure */
769 st_Block = stBlock, /* beginning of block */
770 st_End = stEnd, /* end (of anything) */
771 st_Member = stMember, /* member (of anything - struct/union/enum */
772 st_Typedef = stTypedef, /* type definition */
773 st_File = stFile, /* file name */
774 st_RegReloc = stRegReloc, /* register relocation */
775 st_Forward = stForward, /* forwarding address */
776 st_StaticProc = stStaticProc, /* load time only static procs */
777 st_Constant = stConstant, /* const */
778 st_Str = stStr, /* string */
779 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
780 st_Expr = stExpr, /* 2+2 vs. 4 */
781 st_Type = stType, /* post-coercion SER */
782 st_Max = stMax /* max type+1 */
783 } st_t;
784
785 /* Redefinition of type qualifiers. */
786
787 typedef enum tq {
788 tq_Nil = tqNil, /* bt is what you see */
789 tq_Ptr = tqPtr, /* pointer */
790 tq_Proc = tqProc, /* procedure */
791 tq_Array = tqArray, /* duh */
792 tq_Far = tqFar, /* longer addressing - 8086/8 land */
793 tq_Vol = tqVol, /* volatile */
794 tq_Max = tqMax /* Max type qualifier+1 */
795 } tq_t;
796
797 /* Redefinition of basic types. */
798
799 typedef enum bt {
800 bt_Nil = btNil, /* undefined */
801 bt_Adr = btAdr, /* address - integer same size as pointer */
802 bt_Char = btChar, /* character */
803 bt_UChar = btUChar, /* unsigned character */
804 bt_Short = btShort, /* short */
805 bt_UShort = btUShort, /* unsigned short */
806 bt_Int = btInt, /* int */
807 bt_UInt = btUInt, /* unsigned int */
808 bt_Long = btLong, /* long */
809 bt_ULong = btULong, /* unsigned long */
810 bt_Float = btFloat, /* float (real) */
811 bt_Double = btDouble, /* Double (real) */
812 bt_Struct = btStruct, /* Structure (Record) */
813 bt_Union = btUnion, /* Union (variant) */
814 bt_Enum = btEnum, /* Enumerated */
815 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
816 bt_Range = btRange, /* subrange of int */
817 bt_Set = btSet, /* pascal sets */
818 bt_Complex = btComplex, /* fortran complex */
819 bt_DComplex = btDComplex, /* fortran double complex */
820 bt_Indirect = btIndirect, /* forward or unnamed typedef */
821 bt_FixedDec = btFixedDec, /* Fixed Decimal */
822 bt_FloatDec = btFloatDec, /* Float Decimal */
823 bt_String = btString, /* Varying Length Character String */
824 bt_Bit = btBit, /* Aligned Bit String */
825 bt_Picture = btPicture, /* Picture */
826
827 #ifdef btVoid
828 bt_Void = btVoid, /* Void */
829 #else
830 #define bt_Void bt_Nil
831 #endif
832
833 bt_Max = btMax /* Max basic type+1 */
834 } bt_t;
835
836 \f
837
838 /* Basic COFF storage classes. */
839 enum coff_storage {
840 C_EFCN = -1,
841 C_NULL = 0,
842 C_AUTO = 1,
843 C_EXT = 2,
844 C_STAT = 3,
845 C_REG = 4,
846 C_EXTDEF = 5,
847 C_LABEL = 6,
848 C_ULABEL = 7,
849 C_MOS = 8,
850 C_ARG = 9,
851 C_STRTAG = 10,
852 C_MOU = 11,
853 C_UNTAG = 12,
854 C_TPDEF = 13,
855 C_USTATIC = 14,
856 C_ENTAG = 15,
857 C_MOE = 16,
858 C_REGPARM = 17,
859 C_FIELD = 18,
860 C_BLOCK = 100,
861 C_FCN = 101,
862 C_EOS = 102,
863 C_FILE = 103,
864 C_LINE = 104,
865 C_ALIAS = 105,
866 C_HIDDEN = 106,
867 C_MAX = 107
868 } coff_storage_t;
869
870 /* Regular COFF fundamental type. */
871 typedef enum coff_type {
872 T_NULL = 0,
873 T_ARG = 1,
874 T_CHAR = 2,
875 T_SHORT = 3,
876 T_INT = 4,
877 T_LONG = 5,
878 T_FLOAT = 6,
879 T_DOUBLE = 7,
880 T_STRUCT = 8,
881 T_UNION = 9,
882 T_ENUM = 10,
883 T_MOE = 11,
884 T_UCHAR = 12,
885 T_USHORT = 13,
886 T_UINT = 14,
887 T_ULONG = 15,
888 T_MAX = 16
889 } coff_type_t;
890
891 /* Regular COFF derived types. */
892 typedef enum coff_dt {
893 DT_NON = 0,
894 DT_PTR = 1,
895 DT_FCN = 2,
896 DT_ARY = 3,
897 DT_MAX = 4
898 } coff_dt_t;
899
900 #define N_BTMASK 017 /* bitmask to isolate basic type */
901 #define N_TMASK 003 /* bitmask to isolate derived type */
902 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
903 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
904 #define N_TQ 6 /* # of type qualifiers */
905
906 /* States for whether to hash type or not. */
907 typedef enum hash_state {
908 hash_no = 0, /* don't hash type */
909 hash_yes = 1, /* ok to hash type, or use previous hash */
910 hash_record = 2 /* ok to record hash, but don't use prev. */
911 } hash_state_t;
912
913
914 /* Types of different sized allocation requests. */
915 enum alloc_type {
916 alloc_type_none, /* dummy value */
917 alloc_type_scope, /* nested scopes linked list */
918 alloc_type_vlinks, /* glue linking pages in varray */
919 alloc_type_shash, /* string hash element */
920 alloc_type_thash, /* type hash element */
921 alloc_type_tag, /* struct/union/tag element */
922 alloc_type_forward, /* element to hold unknown tag */
923 alloc_type_thead, /* head of type hash list */
924 alloc_type_varray, /* general varray allocation */
925 alloc_type_last /* last+1 element for array bounds */
926 };
927
928 \f
929 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
930 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
931
932
933 /* Structures to provide n-number of virtual arrays, each of which can
934 grow linearly, and which are written in the object file as sequential
935 pages. On systems with a BSD malloc that define USE_MALLOC, the
936 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
937 adds its overhead, and rounds up to the next power of 2. Pages are
938 linked together via a linked list.
939
940 If PAGE_SIZE is > 4096, the string length in the shash_t structure
941 can't be represented (assuming there are strings > 4096 bytes). */
942
943 #ifndef PAGE_SIZE
944 #define PAGE_SIZE 4096 /* size of varray pages */
945 #endif
946
947 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
948
949
950 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
951 #ifndef USE_MALLOC /* in one memory request */
952 #define MAX_CLUSTER_PAGES 64
953 #else
954 #define MAX_CLUSTER_PAGES 63
955 #endif
956 #endif
957
958
959 /* Linked list connecting separate page allocations. */
960 typedef struct vlinks {
961 struct vlinks *prev; /* previous set of pages */
962 struct vlinks *next; /* next set of pages */
963 union page *datum; /* start of page */
964 unsigned long start_index; /* starting index # of page */
965 } vlinks_t;
966
967
968 /* Virtual array header. */
969 typedef struct varray {
970 vlinks_t *first; /* first page link */
971 vlinks_t *last; /* last page link */
972 unsigned long num_allocated; /* # objects allocated */
973 unsigned short object_size; /* size in bytes of each object */
974 unsigned short objects_per_page; /* # objects that can fit on a page */
975 unsigned short objects_last_page; /* # objects allocated on last page */
976 } varray_t;
977
978 #ifndef MALLOC_CHECK
979 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
980 #else
981 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
982 #endif
983
984 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
985 (vlinks_t *) 0, /* first */ \
986 (vlinks_t *) 0, /* last */ \
987 0, /* num_allocated */ \
988 sizeof (type), /* object_size */ \
989 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
990 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
991 }
992
993 /* Master type for indexes within the symbol table. */
994 typedef unsigned long symint_t;
995
996
997 /* Linked list support for nested scopes (file, block, structure, etc.). */
998 typedef struct scope {
999 struct scope *prev; /* previous scope level */
1000 struct scope *free; /* free list pointer */
1001 SYMR *lsym; /* pointer to local symbol node */
1002 symint_t lnumber; /* lsym index */
1003 st_t type; /* type of the node */
1004 } scope_t;
1005
1006
1007 /* Forward reference list for tags referenced, but not yet defined. */
1008 typedef struct forward {
1009 struct forward *next; /* next forward reference */
1010 struct forward *free; /* free list pointer */
1011 AUXU *ifd_ptr; /* pointer to store file index */
1012 AUXU *index_ptr; /* pointer to store symbol index */
1013 AUXU *type_ptr; /* pointer to munge type info */
1014 } forward_t;
1015
1016
1017 /* Linked list support for tags. The first tag in the list is always
1018 the current tag for that block. */
1019 typedef struct tag {
1020 struct tag *free; /* free list pointer */
1021 struct shash *hash_ptr; /* pointer to the hash table head */
1022 struct tag *same_name; /* tag with same name in outer scope */
1023 struct tag *same_block; /* next tag defined in the same block. */
1024 struct forward *forward_ref; /* list of forward references */
1025 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1026 symint_t ifd; /* file # tag defined in */
1027 symint_t indx; /* index within file's local symbols */
1028 } tag_t;
1029
1030
1031 /* Head of a block's linked list of tags. */
1032 typedef struct thead {
1033 struct thead *prev; /* previous block */
1034 struct thead *free; /* free list pointer */
1035 struct tag *first_tag; /* first tag in block defined */
1036 } thead_t;
1037
1038
1039 /* Union containing pointers to each the small structures which are freed up. */
1040 typedef union small_free {
1041 scope_t *f_scope; /* scope structure */
1042 thead_t *f_thead; /* tag head structure */
1043 tag_t *f_tag; /* tag element structure */
1044 forward_t *f_forward; /* forward tag reference */
1045 } small_free_t;
1046
1047
1048 /* String hash table support. The size of the hash table must fit
1049 within a page. */
1050
1051 #ifndef SHASH_SIZE
1052 #define SHASH_SIZE 1009
1053 #endif
1054
1055 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1056
1057 typedef struct shash {
1058 struct shash *next; /* next hash value */
1059 char *string; /* string we are hashing */
1060 symint_t len; /* string length */
1061 symint_t indx; /* index within string table */
1062 EXTR *esym_ptr; /* global symbol pointer */
1063 SYMR *sym_ptr; /* local symbol pointer */
1064 SYMR *end_ptr; /* symbol pointer to end block */
1065 tag_t *tag_ptr; /* tag pointer */
1066 PDR *proc_ptr; /* procedure descriptor pointer */
1067 } shash_t;
1068
1069
1070 /* Type hash table support. The size of the hash table must fit
1071 within a page with the other extended file descriptor information.
1072 Because unique types which are hashed are fewer in number than
1073 strings, we use a smaller hash value. */
1074
1075 #ifndef THASH_SIZE
1076 #define THASH_SIZE 113
1077 #endif
1078
1079 typedef struct thash {
1080 struct thash *next; /* next hash value */
1081 AUXU type; /* type we are hashing */
1082 symint_t indx; /* index within string table */
1083 } thash_t;
1084
1085
1086 /* Extended file descriptor that contains all of the support necessary
1087 to add things to each file separately. */
1088 typedef struct efdr {
1089 FDR fdr; /* File header to be written out */
1090 FDR *orig_fdr; /* original file header */
1091 char *name; /* filename */
1092 int name_len; /* length of the filename */
1093 symint_t void_type; /* aux. pointer to 'void' type */
1094 symint_t int_type; /* aux. pointer to 'int' type */
1095 scope_t *cur_scope; /* current nested scopes */
1096 symint_t file_index; /* current file number */
1097 int nested_scopes; /* # nested scopes */
1098 varray_t strings; /* local strings */
1099 varray_t symbols; /* local symbols */
1100 varray_t procs; /* procedures */
1101 varray_t aux_syms; /* auxiliary symbols */
1102 struct efdr *next_file; /* next file descriptor */
1103 /* string/type hash tables */
1104 shash_t **shash_head; /* string hash table */
1105 thash_t *thash_head[THASH_SIZE];
1106 } efdr_t;
1107
1108 /* Pre-initialized extended file structure. */
1109 static efdr_t init_file =
1110 {
1111 { /* FDR structure */
1112 0, /* adr: memory address of beginning of file */
1113 0, /* rss: file name (of source, if known) */
1114 0, /* issBase: file's string space */
1115 0, /* cbSs: number of bytes in the ss */
1116 0, /* isymBase: beginning of symbols */
1117 0, /* csym: count file's of symbols */
1118 0, /* ilineBase: file's line symbols */
1119 0, /* cline: count of file's line symbols */
1120 0, /* ioptBase: file's optimization entries */
1121 0, /* copt: count of file's optimization entries */
1122 0, /* ipdFirst: start of procedures for this file */
1123 0, /* cpd: count of procedures for this file */
1124 0, /* iauxBase: file's auxiliary entries */
1125 0, /* caux: count of file's auxiliary entries */
1126 0, /* rfdBase: index into the file indirect table */
1127 0, /* crfd: count file indirect entries */
1128 langC, /* lang: language for this file */
1129 1, /* fMerge: whether this file can be merged */
1130 0, /* fReadin: true if read in (not just created) */
1131 #ifdef HOST_WORDS_BIG_ENDIAN
1132 1, /* fBigendian: if 1, compiled on big endian machine */
1133 #else
1134 0, /* fBigendian: if 1, compiled on big endian machine */
1135 #endif
1136 GLEVEL_2, /* glevel: level this file was compiled with */
1137 0, /* reserved: reserved for future use */
1138 0, /* cbLineOffset: byte offset from header for this file ln's */
1139 0, /* cbLine: size of lines for this file */
1140 },
1141
1142 (FDR *) 0, /* orig_fdr: original file header pointer */
1143 (char *) 0, /* name: pointer to filename */
1144 0, /* name_len: length of filename */
1145 0, /* void_type: ptr to aux node for void type */
1146 0, /* int_type: ptr to aux node for int type */
1147 (scope_t *) 0, /* cur_scope: current scope being processed */
1148 0, /* file_index: current file # */
1149 0, /* nested_scopes: # nested scopes */
1150 INIT_VARRAY (char), /* strings: local string varray */
1151 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1152 INIT_VARRAY (PDR), /* procs: procedure varray */
1153 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1154
1155 (struct efdr *) 0, /* next_file: next file structure */
1156
1157 (shash_t **) 0, /* shash_head: string hash table */
1158 { 0 }, /* thash_head: type hash table */
1159 };
1160
1161
1162 static efdr_t *first_file; /* first file descriptor */
1163 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1164
1165
1166 /* Union of various things that are held in pages. */
1167 typedef union page {
1168 char byte [ PAGE_SIZE ];
1169 unsigned char ubyte [ PAGE_SIZE ];
1170 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1171 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1172 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1173 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1174 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1175 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1176 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1177 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1178 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1179 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1180 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1181 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1182 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1183 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1184 } page_t;
1185
1186
1187 /* Structure holding allocation information for small sized structures. */
1188 typedef struct alloc_info {
1189 char *alloc_name; /* name of this allocation type (must be first) */
1190 page_t *cur_page; /* current page being allocated from */
1191 small_free_t free_list; /* current free list if any */
1192 int unallocated; /* number of elements unallocated on page */
1193 int total_alloc; /* total number of allocations */
1194 int total_free; /* total number of frees */
1195 int total_pages; /* total number of pages allocated */
1196 } alloc_info_t;
1197
1198 /* Type information collected together. */
1199 typedef struct type_info {
1200 bt_t basic_type; /* basic type */
1201 coff_type_t orig_type; /* original COFF-based type */
1202 int num_tq; /* # type qualifiers */
1203 int num_dims; /* # dimensions */
1204 int num_sizes; /* # sizes */
1205 int extra_sizes; /* # extra sizes not tied with dims */
1206 tag_t * tag_ptr; /* tag pointer */
1207 int bitfield; /* symbol is a bitfield */
1208 int unknown_tag; /* this is an unknown tag */
1209 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1210 symint_t dimensions [N_TQ]; /* dimensions for each array */
1211 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1212 struct/union/enum + bitfield size */
1213 } type_info_t;
1214
1215 /* Pre-initialized type_info struct. */
1216 static type_info_t type_info_init = {
1217 bt_Nil, /* basic type */
1218 T_NULL, /* original COFF-based type */
1219 0, /* # type qualifiers */
1220 0, /* # dimensions */
1221 0, /* # sizes */
1222 0, /* sizes not tied with dims */
1223 NULL, /* ptr to tag */
1224 0, /* bitfield */
1225 0, /* unknown tag */
1226 { /* type qualifiers */
1227 tq_Nil,
1228 tq_Nil,
1229 tq_Nil,
1230 tq_Nil,
1231 tq_Nil,
1232 tq_Nil,
1233 },
1234 { /* dimensions */
1235 0,
1236 0,
1237 0,
1238 0,
1239 0,
1240 0
1241 },
1242 { /* sizes */
1243 0,
1244 0,
1245 0,
1246 0,
1247 0,
1248 0,
1249 0,
1250 0,
1251 },
1252 };
1253
1254
1255 /* Global virtual arrays & hash table for external strings as well as
1256 for the tags table and global tables for file descriptors, and
1257 dense numbers. */
1258
1259 static varray_t file_desc = INIT_VARRAY (efdr_t);
1260 static varray_t dense_num = INIT_VARRAY (DNR);
1261 static varray_t tag_strings = INIT_VARRAY (char);
1262 static varray_t ext_strings = INIT_VARRAY (char);
1263 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1264
1265 static shash_t *orig_str_hash[SHASH_SIZE];
1266 static shash_t *ext_str_hash [SHASH_SIZE];
1267 static shash_t *tag_hash [SHASH_SIZE];
1268
1269 /* Static types for int and void. Also, remember the last function's
1270 type (which is set up when we encounter the declaration for the
1271 function, and used when the end block for the function is emitted. */
1272
1273 static type_info_t int_type_info;
1274 static type_info_t void_type_info;
1275 static type_info_t last_func_type_info;
1276 static EXTR *last_func_eptr;
1277
1278
1279 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1280 really should use bt_Void, but this causes the current ecoff GDB to
1281 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1282 2.0) doesn't understand it, even though the compiler generates it.
1283 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1284 suite, but for now go with what works. */
1285
1286 static bt_t map_coff_types[ (int)T_MAX ] = {
1287 bt_Nil, /* T_NULL */
1288 bt_Nil, /* T_ARG */
1289 bt_Char, /* T_CHAR */
1290 bt_Short, /* T_SHORT */
1291 bt_Int, /* T_INT */
1292 bt_Long, /* T_LONG */
1293 bt_Float, /* T_FLOAT */
1294 bt_Double, /* T_DOUBLE */
1295 bt_Struct, /* T_STRUCT */
1296 bt_Union, /* T_UNION */
1297 bt_Enum, /* T_ENUM */
1298 bt_Enum, /* T_MOE */
1299 bt_UChar, /* T_UCHAR */
1300 bt_UShort, /* T_USHORT */
1301 bt_UInt, /* T_UINT */
1302 bt_ULong /* T_ULONG */
1303 };
1304
1305 /* Convert COFF storage class to ECOFF storage class. */
1306 static sc_t map_coff_storage[ (int)C_MAX ] = {
1307 sc_Nil, /* 0: C_NULL */
1308 sc_Abs, /* 1: C_AUTO auto var */
1309 sc_Undefined, /* 2: C_EXT external */
1310 sc_Data, /* 3: C_STAT static */
1311 sc_Register, /* 4: C_REG register */
1312 sc_Undefined, /* 5: C_EXTDEF ??? */
1313 sc_Text, /* 6: C_LABEL label */
1314 sc_Text, /* 7: C_ULABEL user label */
1315 sc_Info, /* 8: C_MOS member of struct */
1316 sc_Abs, /* 9: C_ARG argument */
1317 sc_Info, /* 10: C_STRTAG struct tag */
1318 sc_Info, /* 11: C_MOU member of union */
1319 sc_Info, /* 12: C_UNTAG union tag */
1320 sc_Info, /* 13: C_TPDEF typedef */
1321 sc_Data, /* 14: C_USTATIC ??? */
1322 sc_Info, /* 15: C_ENTAG enum tag */
1323 sc_Info, /* 16: C_MOE member of enum */
1324 sc_Register, /* 17: C_REGPARM register parameter */
1325 sc_Bits, /* 18; C_FIELD bitfield */
1326 sc_Nil, /* 19 */
1327 sc_Nil, /* 20 */
1328 sc_Nil, /* 21 */
1329 sc_Nil, /* 22 */
1330 sc_Nil, /* 23 */
1331 sc_Nil, /* 24 */
1332 sc_Nil, /* 25 */
1333 sc_Nil, /* 26 */
1334 sc_Nil, /* 27 */
1335 sc_Nil, /* 28 */
1336 sc_Nil, /* 29 */
1337 sc_Nil, /* 30 */
1338 sc_Nil, /* 31 */
1339 sc_Nil, /* 32 */
1340 sc_Nil, /* 33 */
1341 sc_Nil, /* 34 */
1342 sc_Nil, /* 35 */
1343 sc_Nil, /* 36 */
1344 sc_Nil, /* 37 */
1345 sc_Nil, /* 38 */
1346 sc_Nil, /* 39 */
1347 sc_Nil, /* 40 */
1348 sc_Nil, /* 41 */
1349 sc_Nil, /* 42 */
1350 sc_Nil, /* 43 */
1351 sc_Nil, /* 44 */
1352 sc_Nil, /* 45 */
1353 sc_Nil, /* 46 */
1354 sc_Nil, /* 47 */
1355 sc_Nil, /* 48 */
1356 sc_Nil, /* 49 */
1357 sc_Nil, /* 50 */
1358 sc_Nil, /* 51 */
1359 sc_Nil, /* 52 */
1360 sc_Nil, /* 53 */
1361 sc_Nil, /* 54 */
1362 sc_Nil, /* 55 */
1363 sc_Nil, /* 56 */
1364 sc_Nil, /* 57 */
1365 sc_Nil, /* 58 */
1366 sc_Nil, /* 59 */
1367 sc_Nil, /* 60 */
1368 sc_Nil, /* 61 */
1369 sc_Nil, /* 62 */
1370 sc_Nil, /* 63 */
1371 sc_Nil, /* 64 */
1372 sc_Nil, /* 65 */
1373 sc_Nil, /* 66 */
1374 sc_Nil, /* 67 */
1375 sc_Nil, /* 68 */
1376 sc_Nil, /* 69 */
1377 sc_Nil, /* 70 */
1378 sc_Nil, /* 71 */
1379 sc_Nil, /* 72 */
1380 sc_Nil, /* 73 */
1381 sc_Nil, /* 74 */
1382 sc_Nil, /* 75 */
1383 sc_Nil, /* 76 */
1384 sc_Nil, /* 77 */
1385 sc_Nil, /* 78 */
1386 sc_Nil, /* 79 */
1387 sc_Nil, /* 80 */
1388 sc_Nil, /* 81 */
1389 sc_Nil, /* 82 */
1390 sc_Nil, /* 83 */
1391 sc_Nil, /* 84 */
1392 sc_Nil, /* 85 */
1393 sc_Nil, /* 86 */
1394 sc_Nil, /* 87 */
1395 sc_Nil, /* 88 */
1396 sc_Nil, /* 89 */
1397 sc_Nil, /* 90 */
1398 sc_Nil, /* 91 */
1399 sc_Nil, /* 92 */
1400 sc_Nil, /* 93 */
1401 sc_Nil, /* 94 */
1402 sc_Nil, /* 95 */
1403 sc_Nil, /* 96 */
1404 sc_Nil, /* 97 */
1405 sc_Nil, /* 98 */
1406 sc_Nil, /* 99 */
1407 sc_Text, /* 100: C_BLOCK block start/end */
1408 sc_Text, /* 101: C_FCN function start/end */
1409 sc_Info, /* 102: C_EOS end of struct/union/enum */
1410 sc_Nil, /* 103: C_FILE file start */
1411 sc_Nil, /* 104: C_LINE line number */
1412 sc_Nil, /* 105: C_ALIAS combined type info */
1413 sc_Nil, /* 106: C_HIDDEN ??? */
1414 };
1415
1416 /* Convert COFF storage class to ECOFF symbol type. */
1417 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1418 st_Nil, /* 0: C_NULL */
1419 st_Local, /* 1: C_AUTO auto var */
1420 st_Global, /* 2: C_EXT external */
1421 st_Static, /* 3: C_STAT static */
1422 st_Local, /* 4: C_REG register */
1423 st_Global, /* 5: C_EXTDEF ??? */
1424 st_Label, /* 6: C_LABEL label */
1425 st_Label, /* 7: C_ULABEL user label */
1426 st_Member, /* 8: C_MOS member of struct */
1427 st_Param, /* 9: C_ARG argument */
1428 st_Block, /* 10: C_STRTAG struct tag */
1429 st_Member, /* 11: C_MOU member of union */
1430 st_Block, /* 12: C_UNTAG union tag */
1431 st_Typedef, /* 13: C_TPDEF typedef */
1432 st_Static, /* 14: C_USTATIC ??? */
1433 st_Block, /* 15: C_ENTAG enum tag */
1434 st_Member, /* 16: C_MOE member of enum */
1435 st_Param, /* 17: C_REGPARM register parameter */
1436 st_Member, /* 18; C_FIELD bitfield */
1437 st_Nil, /* 19 */
1438 st_Nil, /* 20 */
1439 st_Nil, /* 21 */
1440 st_Nil, /* 22 */
1441 st_Nil, /* 23 */
1442 st_Nil, /* 24 */
1443 st_Nil, /* 25 */
1444 st_Nil, /* 26 */
1445 st_Nil, /* 27 */
1446 st_Nil, /* 28 */
1447 st_Nil, /* 29 */
1448 st_Nil, /* 30 */
1449 st_Nil, /* 31 */
1450 st_Nil, /* 32 */
1451 st_Nil, /* 33 */
1452 st_Nil, /* 34 */
1453 st_Nil, /* 35 */
1454 st_Nil, /* 36 */
1455 st_Nil, /* 37 */
1456 st_Nil, /* 38 */
1457 st_Nil, /* 39 */
1458 st_Nil, /* 40 */
1459 st_Nil, /* 41 */
1460 st_Nil, /* 42 */
1461 st_Nil, /* 43 */
1462 st_Nil, /* 44 */
1463 st_Nil, /* 45 */
1464 st_Nil, /* 46 */
1465 st_Nil, /* 47 */
1466 st_Nil, /* 48 */
1467 st_Nil, /* 49 */
1468 st_Nil, /* 50 */
1469 st_Nil, /* 51 */
1470 st_Nil, /* 52 */
1471 st_Nil, /* 53 */
1472 st_Nil, /* 54 */
1473 st_Nil, /* 55 */
1474 st_Nil, /* 56 */
1475 st_Nil, /* 57 */
1476 st_Nil, /* 58 */
1477 st_Nil, /* 59 */
1478 st_Nil, /* 60 */
1479 st_Nil, /* 61 */
1480 st_Nil, /* 62 */
1481 st_Nil, /* 63 */
1482 st_Nil, /* 64 */
1483 st_Nil, /* 65 */
1484 st_Nil, /* 66 */
1485 st_Nil, /* 67 */
1486 st_Nil, /* 68 */
1487 st_Nil, /* 69 */
1488 st_Nil, /* 70 */
1489 st_Nil, /* 71 */
1490 st_Nil, /* 72 */
1491 st_Nil, /* 73 */
1492 st_Nil, /* 74 */
1493 st_Nil, /* 75 */
1494 st_Nil, /* 76 */
1495 st_Nil, /* 77 */
1496 st_Nil, /* 78 */
1497 st_Nil, /* 79 */
1498 st_Nil, /* 80 */
1499 st_Nil, /* 81 */
1500 st_Nil, /* 82 */
1501 st_Nil, /* 83 */
1502 st_Nil, /* 84 */
1503 st_Nil, /* 85 */
1504 st_Nil, /* 86 */
1505 st_Nil, /* 87 */
1506 st_Nil, /* 88 */
1507 st_Nil, /* 89 */
1508 st_Nil, /* 90 */
1509 st_Nil, /* 91 */
1510 st_Nil, /* 92 */
1511 st_Nil, /* 93 */
1512 st_Nil, /* 94 */
1513 st_Nil, /* 95 */
1514 st_Nil, /* 96 */
1515 st_Nil, /* 97 */
1516 st_Nil, /* 98 */
1517 st_Nil, /* 99 */
1518 st_Block, /* 100: C_BLOCK block start/end */
1519 st_Proc, /* 101: C_FCN function start/end */
1520 st_End, /* 102: C_EOS end of struct/union/enum */
1521 st_File, /* 103: C_FILE file start */
1522 st_Nil, /* 104: C_LINE line number */
1523 st_Nil, /* 105: C_ALIAS combined type info */
1524 st_Nil, /* 106: C_HIDDEN ??? */
1525 };
1526
1527 /* Map COFF derived types to ECOFF type qualifiers. */
1528 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1529 tq_Nil, /* 0: DT_NON no more qualifiers */
1530 tq_Ptr, /* 1: DT_PTR pointer */
1531 tq_Proc, /* 2: DT_FCN function */
1532 tq_Array, /* 3: DT_ARY array */
1533 };
1534
1535
1536 /* Keep track of different sized allocation requests. */
1537 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1538
1539 \f
1540 /* Pointers and such to the original symbol table that is read in. */
1541 static struct filehdr orig_file_header; /* global object file header */
1542
1543 static HDRR orig_sym_hdr; /* symbolic header on input */
1544 static char *orig_linenum; /* line numbers */
1545 static DNR *orig_dense; /* dense numbers */
1546 static PDR *orig_procs; /* procedures */
1547 static SYMR *orig_local_syms; /* local symbols */
1548 static OPTR *orig_opt_syms; /* optimization symbols */
1549 static AUXU *orig_aux_syms; /* auxiliary symbols */
1550 static char *orig_local_strs; /* local strings */
1551 static char *orig_ext_strs; /* external strings */
1552 static FDR *orig_files; /* file descriptors */
1553 static symint_t *orig_rfds; /* relative file desc's */
1554 static EXTR *orig_ext_syms; /* external symbols */
1555
1556 /* Macros to convert an index into a given object within the original
1557 symbol table. */
1558 #define CHECK(num,max,str) \
1559 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1560
1561 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1562 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1563 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1564 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1565 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1566 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1567 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1568 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1569 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1570 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1571 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1572
1573 /* Various other statics. */
1574 static HDRR symbolic_header; /* symbolic header */
1575 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1576 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1577 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1578 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1579 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1580 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1581 static long file_offset = 0; /* current file offset */
1582 static long max_file_offset = 0; /* maximum file offset */
1583 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1584 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1585 static char *progname = (char *) 0; /* program name for errors */
1586 static char *input_name = "stdin"; /* name of input file */
1587 static char *object_name = (char *) 0; /* tmp. name of object file */
1588 static char *obj_in_name = (char *) 0; /* name of input object file */
1589 static char *cur_line_start = (char *) 0; /* current line read in */
1590 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1591 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1592 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1593 static long line_number = 0; /* current input line number */
1594 static int debug = 0; /* trace functions */
1595 static int version = 0; /* print version # */
1596 static int had_errors = 0; /* != 0 if errors were found */
1597 static int rename_output = 0; /* != 0 if rename output file*/
1598 static int delete_input = 0; /* != 0 if delete input after done */
1599 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1600
1601
1602 /* Pseudo symbol to use when putting stabs into the symbol table. */
1603 #ifndef STABS_SYMBOL
1604 #define STABS_SYMBOL "@stabs"
1605 #endif
1606
1607 static char stabs_symbol[] = STABS_SYMBOL;
1608
1609 \f
1610 /* Forward reference for functions. See the definition for more details. */
1611
1612 #ifndef STATIC
1613 #define STATIC static
1614 #endif
1615
1616 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1617
1618 STATIC shash_t *hash_string __proto((const char *,
1619 Ptrdiff_t,
1620 shash_t **,
1621 symint_t *));
1622
1623 STATIC symint_t add_string __proto((varray_t *,
1624 shash_t **,
1625 const char *,
1626 const char *,
1627 shash_t **));
1628
1629 STATIC symint_t add_local_symbol
1630 __proto((const char *,
1631 const char *,
1632 st_t,
1633 sc_t,
1634 symint_t,
1635 symint_t));
1636
1637 STATIC symint_t add_ext_symbol __proto((const char *,
1638 const char *,
1639 st_t,
1640 sc_t,
1641 long,
1642 symint_t,
1643 int));
1644
1645 STATIC symint_t add_aux_sym_symint
1646 __proto((symint_t));
1647
1648 STATIC symint_t add_aux_sym_rndx
1649 __proto((int, symint_t));
1650
1651 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1652 hash_state_t,
1653 thash_t **));
1654
1655 STATIC tag_t * get_tag __proto((const char *,
1656 const char *,
1657 symint_t,
1658 bt_t));
1659
1660 STATIC void add_unknown_tag __proto((tag_t *));
1661
1662 STATIC void add_procedure __proto((const char *,
1663 const char *));
1664
1665 STATIC void add_file __proto((const char *,
1666 const char *));
1667
1668 STATIC void add_bytes __proto((varray_t *,
1669 char *,
1670 Size_t));
1671
1672 STATIC void add_varray_page __proto((varray_t *));
1673
1674 STATIC void update_headers __proto((void));
1675
1676 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1677 STATIC void write_object __proto((void));
1678 STATIC char *st_to_string __proto((st_t));
1679 STATIC char *sc_to_string __proto((sc_t));
1680 STATIC char *read_line __proto((void));
1681 STATIC void parse_input __proto((void));
1682 STATIC void mark_stabs __proto((const char *));
1683 STATIC void parse_begin __proto((const char *));
1684 STATIC void parse_bend __proto((const char *));
1685 STATIC void parse_def __proto((const char *));
1686 STATIC void parse_end __proto((const char *));
1687 STATIC void parse_ent __proto((const char *));
1688 STATIC void parse_file __proto((const char *));
1689 STATIC void parse_stabs_common
1690 __proto((const char *, const char *, const char *));
1691 STATIC void parse_stabs __proto((const char *));
1692 STATIC void parse_stabn __proto((const char *));
1693 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1694 STATIC void copy_object __proto((void));
1695
1696 STATIC void catch_signal __proto((int));
1697 STATIC page_t *allocate_page __proto((void));
1698
1699 STATIC page_t *allocate_multiple_pages
1700 __proto((Size_t));
1701
1702 STATIC void free_multiple_pages
1703 __proto((page_t *, Size_t));
1704
1705 #ifndef MALLOC_CHECK
1706 STATIC page_t *allocate_cluster
1707 __proto((Size_t));
1708 #endif
1709
1710 STATIC forward_t *allocate_forward __proto((void));
1711 STATIC scope_t *allocate_scope __proto((void));
1712 STATIC shash_t *allocate_shash __proto((void));
1713 STATIC tag_t *allocate_tag __proto((void));
1714 STATIC thash_t *allocate_thash __proto((void));
1715 STATIC thead_t *allocate_thead __proto((void));
1716 STATIC vlinks_t *allocate_vlinks __proto((void));
1717
1718 STATIC void free_forward __proto((forward_t *));
1719 STATIC void free_scope __proto((scope_t *));
1720 STATIC void free_tag __proto((tag_t *));
1721 STATIC void free_thead __proto((thead_t *));
1722
1723 STATIC char *local_index __proto((const char *, int));
1724 STATIC char *local_rindex __proto((const char *, int));
1725 STATIC const char *my_strsignal __proto((int));
1726
1727 extern char *mktemp __proto((char *));
1728 extern long strtol __proto((const char *, char **, int));
1729
1730 extern char *optarg;
1731 extern int optind;
1732 extern int opterr;
1733 extern char *version_string;
1734 \f
1735 /* List of assembler pseudo ops and beginning sequences that need
1736 special actions. Someday, this should be a hash table, and such,
1737 but for now a linear list of names and calls to memcmp will
1738 do...... */
1739
1740 typedef struct _pseudo_ops {
1741 const char *name; /* pseudo-op in ascii */
1742 int len; /* length of name to compare */
1743 void (*func) __proto((const char *)); /* function to handle line */
1744 } pseudo_ops_t;
1745
1746 static pseudo_ops_t pseudo_ops[] = {
1747 { "#.def", sizeof("#.def")-1, parse_def },
1748 { "#.begin", sizeof("#.begin")-1, parse_begin },
1749 { "#.bend", sizeof("#.bend")-1, parse_bend },
1750 { ".end", sizeof(".end")-1, parse_end },
1751 { ".ent", sizeof(".ent")-1, parse_ent },
1752 { ".file", sizeof(".file")-1, parse_file },
1753 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1754 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1755 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1756 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1757 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1758 };
1759
1760 \f
1761 /* Add a page to a varray object. */
1762
1763 STATIC void
1764 add_varray_page (vp)
1765 varray_t *vp; /* varray to add page to */
1766 {
1767 vlinks_t *new_links = allocate_vlinks ();
1768
1769 #ifdef MALLOC_CHECK
1770 if (vp->object_size > 1)
1771 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1772 else
1773 #endif
1774 new_links->datum = allocate_page ();
1775
1776 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1777 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1778
1779 new_links->start_index = vp->num_allocated;
1780 vp->objects_last_page = 0;
1781
1782 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1783 vp->first = vp->last = new_links;
1784 else
1785 { /* 2nd or greater allocation */
1786 new_links->prev = vp->last;
1787 vp->last->next = new_links;
1788 vp->last = new_links;
1789 }
1790 }
1791
1792 \f
1793 /* Compute hash code (from tree.c) */
1794
1795 #define HASHBITS 30
1796
1797 STATIC shash_t *
1798 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1799 const char *text; /* ptr to text to hash */
1800 Ptrdiff_t hash_len; /* length of the text */
1801 shash_t **hash_tbl; /* hash table */
1802 symint_t *ret_hash_index; /* ptr to store hash index */
1803 {
1804 register unsigned long hi;
1805 register Ptrdiff_t i;
1806 register shash_t *ptr;
1807 register int first_ch = *text;
1808
1809 hi = hash_len;
1810 for (i = 0; i < hash_len; i++)
1811 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1812
1813 hi &= (1 << HASHBITS) - 1;
1814 hi %= SHASH_SIZE;
1815
1816 if (ret_hash_index != (symint_t *) 0)
1817 *ret_hash_index = hi;
1818
1819 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1820 if (hash_len == ptr->len
1821 && first_ch == ptr->string[0]
1822 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1823 break;
1824
1825 return ptr;
1826 }
1827
1828 \f
1829 /* Add a string (and null pad) to one of the string tables. A
1830 consequence of hashing strings, is that we don't let strings
1831 cross page boundaries. The extra nulls will be ignored. */
1832
1833 STATIC symint_t
1834 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1835 varray_t *vp; /* string virtual array */
1836 shash_t **hash_tbl; /* ptr to hash table */
1837 const char *start; /* 1st byte in string */
1838 const char *end_p1; /* 1st byte after string */
1839 shash_t **ret_hash; /* return hash pointer */
1840 {
1841 register Ptrdiff_t len = end_p1 - start;
1842 register shash_t *hash_ptr;
1843 symint_t hi;
1844
1845 if (len >= PAGE_USIZE)
1846 fatal ("String too big (%ld bytes)", (long) len);
1847
1848 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1849 if (hash_ptr == (shash_t *) 0)
1850 {
1851 register char *p;
1852
1853 if (vp->objects_last_page + len >= PAGE_USIZE)
1854 {
1855 vp->num_allocated
1856 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1857 add_varray_page (vp);
1858 }
1859
1860 hash_ptr = allocate_shash ();
1861 hash_ptr->next = hash_tbl[hi];
1862 hash_tbl[hi] = hash_ptr;
1863
1864 hash_ptr->len = len;
1865 hash_ptr->indx = vp->num_allocated;
1866 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1867
1868 vp->objects_last_page += len+1;
1869 vp->num_allocated += len+1;
1870
1871 while (len-- > 0)
1872 *p++ = *start++;
1873
1874 *p = '\0';
1875 }
1876
1877 if (ret_hash != (shash_t **) 0)
1878 *ret_hash = hash_ptr;
1879
1880 return hash_ptr->indx;
1881 }
1882
1883 \f
1884 /* Add a local symbol. */
1885
1886 STATIC symint_t
1887 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1888 const char *str_start; /* first byte in string */
1889 const char *str_end_p1; /* first byte after string */
1890 st_t type; /* symbol type */
1891 sc_t storage; /* storage class */
1892 symint_t value; /* value of symbol */
1893 symint_t indx; /* index to local/aux. syms */
1894 {
1895 register symint_t ret;
1896 register SYMR *psym;
1897 register scope_t *pscope;
1898 register thead_t *ptag_head;
1899 register tag_t *ptag;
1900 register tag_t *ptag_next;
1901 register varray_t *vp = &cur_file_ptr->symbols;
1902 register int scope_delta = 0;
1903 shash_t *hash_ptr = (shash_t *) 0;
1904
1905 if (vp->objects_last_page == vp->objects_per_page)
1906 add_varray_page (vp);
1907
1908 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1909
1910 psym->value = value;
1911 psym->st = (unsigned) type;
1912 psym->sc = (unsigned) storage;
1913 psym->index = indx;
1914 psym->iss = (str_start == (const char *) 0)
1915 ? 0
1916 : add_string (&cur_file_ptr->strings,
1917 &cur_file_ptr->shash_head[0],
1918 str_start,
1919 str_end_p1,
1920 &hash_ptr);
1921
1922 ret = vp->num_allocated++;
1923
1924 if (MIPS_IS_STAB(psym))
1925 return ret;
1926
1927 /* Save the symbol within the hash table if this is a static
1928 item, and it has a name. */
1929 if (hash_ptr != (shash_t *) 0
1930 && (type == st_Global || type == st_Static || type == st_Label
1931 || type == st_Proc || type == st_StaticProc))
1932 hash_ptr->sym_ptr = psym;
1933
1934 /* push or pop a scope if appropriate. */
1935 switch (type)
1936 {
1937 default:
1938 break;
1939
1940 case st_File: /* beginning of file */
1941 case st_Proc: /* procedure */
1942 case st_StaticProc: /* static procedure */
1943 case st_Block: /* begin scope */
1944 pscope = allocate_scope ();
1945 pscope->prev = cur_file_ptr->cur_scope;
1946 pscope->lsym = psym;
1947 pscope->lnumber = ret;
1948 pscope->type = type;
1949 cur_file_ptr->cur_scope = pscope;
1950
1951 if (type != st_File)
1952 scope_delta = 1;
1953
1954 /* For every block type except file, struct, union, or
1955 enumeration blocks, push a level on the tag stack. We omit
1956 file types, so that tags can span file boundaries. */
1957 if (type != st_File && storage != sc_Info)
1958 {
1959 ptag_head = allocate_thead ();
1960 ptag_head->first_tag = 0;
1961 ptag_head->prev = cur_tag_head;
1962 cur_tag_head = ptag_head;
1963 }
1964 break;
1965
1966 case st_End:
1967 pscope = cur_file_ptr->cur_scope;
1968 if (pscope == (scope_t *)0)
1969 error ("internal error, too many st_End's");
1970
1971 else
1972 {
1973 st_t begin_type = (st_t) pscope->lsym->st;
1974
1975 if (begin_type != st_File)
1976 scope_delta = -1;
1977
1978 /* Except for file, structure, union, or enumeration end
1979 blocks remove all tags created within this scope. */
1980 if (begin_type != st_File && storage != sc_Info)
1981 {
1982 ptag_head = cur_tag_head;
1983 cur_tag_head = ptag_head->prev;
1984
1985 for (ptag = ptag_head->first_tag;
1986 ptag != (tag_t *) 0;
1987 ptag = ptag_next)
1988 {
1989 if (ptag->forward_ref != (forward_t *) 0)
1990 add_unknown_tag (ptag);
1991
1992 ptag_next = ptag->same_block;
1993 ptag->hash_ptr->tag_ptr = ptag->same_name;
1994 free_tag (ptag);
1995 }
1996
1997 free_thead (ptag_head);
1998 }
1999
2000 cur_file_ptr->cur_scope = pscope->prev;
2001 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2002
2003 if (storage != sc_Info)
2004 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2005
2006 if (begin_type == st_File || begin_type == st_Block)
2007 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2008
2009 /* Functions push two or more aux words as follows:
2010 1st word: index+1 of the end symbol
2011 2nd word: type of the function (plus any aux words needed).
2012 Also, tie the external pointer back to the function begin symbol. */
2013 else
2014 {
2015 symint_t type;
2016 pscope->lsym->index = add_aux_sym_symint (ret+1);
2017 type = add_aux_sym_tir (&last_func_type_info,
2018 hash_no,
2019 &cur_file_ptr->thash_head[0]);
2020 if (last_func_eptr)
2021 {
2022 last_func_eptr->ifd = cur_file_ptr->file_index;
2023
2024 /* The index for an external st_Proc symbol is the index
2025 of the st_Proc symbol in the local symbol table. */
2026 last_func_eptr->asym.index = psym->index;
2027 }
2028 }
2029
2030 free_scope (pscope);
2031 }
2032 }
2033
2034 cur_file_ptr->nested_scopes += scope_delta;
2035
2036 if (debug && type != st_File
2037 && (debug > 2 || type == st_Block || type == st_End
2038 || type == st_Proc || type == st_StaticProc))
2039 {
2040 char *sc_str = sc_to_string (storage);
2041 char *st_str = st_to_string (type);
2042 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2043
2044 fprintf (stderr,
2045 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2046 value, depth, sc_str);
2047
2048 if (str_start && str_end_p1 - str_start > 0)
2049 fprintf (stderr, " st= %-11s name= %.*s\n",
2050 st_str, (int) (str_end_p1 - str_start), str_start);
2051 else
2052 {
2053 Size_t len = strlen (st_str);
2054 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2055 }
2056 }
2057
2058 return ret;
2059 }
2060
2061 \f
2062 /* Add an external symbol. */
2063
2064 STATIC symint_t
2065 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2066 const char *str_start; /* first byte in string */
2067 const char *str_end_p1; /* first byte after string */
2068 st_t type; /* symbol type */
2069 sc_t storage; /* storage class */
2070 long value; /* value of symbol */
2071 symint_t indx; /* index to local/aux. syms */
2072 int ifd; /* file index */
2073 {
2074 register EXTR *psym;
2075 register varray_t *vp = &ext_symbols;
2076 shash_t *hash_ptr = (shash_t *) 0;
2077
2078 if (debug > 1)
2079 {
2080 char *sc_str = sc_to_string (storage);
2081 char *st_str = st_to_string (type);
2082
2083 fprintf (stderr,
2084 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2085 value, ifd, sc_str);
2086
2087 if (str_start && str_end_p1 - str_start > 0)
2088 fprintf (stderr, " st= %-11s name= %.*s\n",
2089 st_str, (int) (str_end_p1 - str_start), str_start);
2090 else
2091 fprintf (stderr, " st= %s\n", st_str);
2092 }
2093
2094 if (vp->objects_last_page == vp->objects_per_page)
2095 add_varray_page (vp);
2096
2097 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2098
2099 psym->ifd = ifd;
2100 psym->asym.value = value;
2101 psym->asym.st = (unsigned) type;
2102 psym->asym.sc = (unsigned) storage;
2103 psym->asym.index = indx;
2104 psym->asym.iss = (str_start == (const char *) 0)
2105 ? 0
2106 : add_string (&ext_strings,
2107 &ext_str_hash[0],
2108 str_start,
2109 str_end_p1,
2110 &hash_ptr);
2111
2112 hash_ptr->esym_ptr = psym;
2113 return vp->num_allocated++;
2114 }
2115
2116 \f
2117 /* Add an auxiliary symbol (passing a symint). */
2118
2119 STATIC symint_t
2120 add_aux_sym_symint (aux_word)
2121 symint_t aux_word; /* auxiliary information word */
2122 {
2123 register AUXU *aux_ptr;
2124 register efdr_t *file_ptr = cur_file_ptr;
2125 register varray_t *vp = &file_ptr->aux_syms;
2126
2127 if (vp->objects_last_page == vp->objects_per_page)
2128 add_varray_page (vp);
2129
2130 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2131 aux_ptr->isym = aux_word;
2132
2133 return vp->num_allocated++;
2134 }
2135
2136
2137 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2138
2139 STATIC symint_t
2140 add_aux_sym_rndx (file_index, sym_index)
2141 int file_index;
2142 symint_t sym_index;
2143 {
2144 register AUXU *aux_ptr;
2145 register efdr_t *file_ptr = cur_file_ptr;
2146 register varray_t *vp = &file_ptr->aux_syms;
2147
2148 if (vp->objects_last_page == vp->objects_per_page)
2149 add_varray_page (vp);
2150
2151 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2152 aux_ptr->rndx.rfd = file_index;
2153 aux_ptr->rndx.index = sym_index;
2154
2155 return vp->num_allocated++;
2156 }
2157
2158 \f
2159 /* Add an auxiliary symbol (passing the basic type and possibly
2160 type qualifiers). */
2161
2162 STATIC symint_t
2163 add_aux_sym_tir (t, state, hash_tbl)
2164 type_info_t *t; /* current type information */
2165 hash_state_t state; /* whether to hash type or not */
2166 thash_t **hash_tbl; /* pointer to hash table to use */
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 static AUXU init_aux;
2172 symint_t ret;
2173 int i;
2174 AUXU aux;
2175
2176 aux = init_aux;
2177 aux.ti.bt = (int) t->basic_type;
2178 aux.ti.continued = 0;
2179 aux.ti.fBitfield = t->bitfield;
2180
2181 aux.ti.tq0 = (int) t->type_qualifiers[0];
2182 aux.ti.tq1 = (int) t->type_qualifiers[1];
2183 aux.ti.tq2 = (int) t->type_qualifiers[2];
2184 aux.ti.tq3 = (int) t->type_qualifiers[3];
2185 aux.ti.tq4 = (int) t->type_qualifiers[4];
2186 aux.ti.tq5 = (int) t->type_qualifiers[5];
2187
2188
2189 /* For anything that adds additional information, we must not hash,
2190 so check here, and reset our state. */
2191
2192 if (state != hash_no
2193 && (t->type_qualifiers[0] == tq_Array
2194 || t->type_qualifiers[1] == tq_Array
2195 || t->type_qualifiers[2] == tq_Array
2196 || t->type_qualifiers[3] == tq_Array
2197 || t->type_qualifiers[4] == tq_Array
2198 || t->type_qualifiers[5] == tq_Array
2199 || t->basic_type == bt_Struct
2200 || t->basic_type == bt_Union
2201 || t->basic_type == bt_Enum
2202 || t->bitfield
2203 || t->num_dims > 0))
2204 state = hash_no;
2205
2206 /* See if we can hash this type, and save some space, but some types
2207 can't be hashed (because they contain arrays or continuations),
2208 and others can be put into the hash list, but cannot use existing
2209 types because other aux entries precede this one. */
2210
2211 if (state != hash_no)
2212 {
2213 register thash_t *hash_ptr;
2214 register symint_t hi;
2215
2216 hi = aux.isym & ((1 << HASHBITS) - 1);
2217 hi %= THASH_SIZE;
2218
2219 for (hash_ptr = hash_tbl[hi];
2220 hash_ptr != (thash_t *) 0;
2221 hash_ptr = hash_ptr->next)
2222 {
2223 if (aux.isym == hash_ptr->type.isym)
2224 break;
2225 }
2226
2227 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2228 return hash_ptr->indx;
2229
2230 if (hash_ptr == (thash_t *) 0)
2231 {
2232 hash_ptr = allocate_thash ();
2233 hash_ptr->next = hash_tbl[hi];
2234 hash_ptr->type = aux;
2235 hash_ptr->indx = vp->num_allocated;
2236 hash_tbl[hi] = hash_ptr;
2237 }
2238 }
2239
2240 /* Everything is set up, add the aux symbol. */
2241 if (vp->objects_last_page == vp->objects_per_page)
2242 add_varray_page (vp);
2243
2244 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2245 *aux_ptr = aux;
2246
2247 ret = vp->num_allocated++;
2248
2249 /* Add bitfield length if it exists.
2250
2251 NOTE: Mips documentation claims bitfield goes at the end of the
2252 AUX record, but the DECstation compiler emits it here.
2253 (This would only make a difference for enum bitfields.)
2254
2255 Also note: We use the last size given since gcc may emit 2
2256 for an enum bitfield. */
2257
2258 if (t->bitfield)
2259 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2260
2261
2262 /* Add tag information if needed. Structure, union, and enum
2263 references add 2 aux symbols: a [file index, symbol index]
2264 pointer to the structure type, and the current file index. */
2265
2266 if (t->basic_type == bt_Struct
2267 || t->basic_type == bt_Union
2268 || t->basic_type == bt_Enum)
2269 {
2270 register symint_t file_index = t->tag_ptr->ifd;
2271 register symint_t sym_index = t->tag_ptr->indx;
2272
2273 if (t->unknown_tag)
2274 {
2275 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2276 (void) add_aux_sym_symint ((symint_t)-1);
2277 }
2278 else if (sym_index != indexNil)
2279 {
2280 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2281 (void) add_aux_sym_symint (file_index);
2282 }
2283 else
2284 {
2285 register forward_t *forward_ref = allocate_forward ();
2286
2287 forward_ref->type_ptr = aux_ptr;
2288 forward_ref->next = t->tag_ptr->forward_ref;
2289 t->tag_ptr->forward_ref = forward_ref;
2290
2291 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2292 forward_ref->index_ptr
2293 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2294
2295 (void) add_aux_sym_symint (file_index);
2296 forward_ref->ifd_ptr
2297 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2298 }
2299 }
2300
2301 /* Add information about array bounds if they exist. */
2302 for (i = 0; i < t->num_dims; i++)
2303 {
2304 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2305 cur_file_ptr->int_type);
2306
2307 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2308 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2309 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2310 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2311 ? 0
2312 : (t->sizes[i] * 8) / t->dimensions[i]);
2313 };
2314
2315 /* NOTE: Mips documentation claims that the bitfield width goes here.
2316 But it needs to be emitted earlier. */
2317
2318 return ret;
2319 }
2320
2321 \f
2322 /* Add a tag to the tag table (unless it already exists). */
2323
2324 STATIC tag_t *
2325 get_tag (tag_start, tag_end_p1, indx, basic_type)
2326 const char *tag_start; /* 1st byte of tag name */
2327 const char *tag_end_p1; /* 1st byte after tag name */
2328 symint_t indx; /* index of tag start block */
2329 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2330 {
2331 shash_t *hash_ptr;
2332 tag_t *tag_ptr;
2333 hash_ptr = hash_string (tag_start,
2334 tag_end_p1 - tag_start,
2335 &tag_hash[0],
2336 (symint_t *) 0);
2337
2338 if (hash_ptr != (shash_t *) 0
2339 && hash_ptr->tag_ptr != (tag_t *) 0)
2340 {
2341 tag_ptr = hash_ptr->tag_ptr;
2342 if (indx != indexNil)
2343 {
2344 tag_ptr->basic_type = basic_type;
2345 tag_ptr->ifd = cur_file_ptr->file_index;
2346 tag_ptr->indx = indx;
2347 }
2348 return tag_ptr;
2349 }
2350
2351 (void) add_string (&tag_strings,
2352 &tag_hash[0],
2353 tag_start,
2354 tag_end_p1,
2355 &hash_ptr);
2356
2357 tag_ptr = allocate_tag ();
2358 tag_ptr->forward_ref = (forward_t *) 0;
2359 tag_ptr->hash_ptr = hash_ptr;
2360 tag_ptr->same_name = hash_ptr->tag_ptr;
2361 tag_ptr->basic_type = basic_type;
2362 tag_ptr->indx = indx;
2363 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2364 tag_ptr->same_block = cur_tag_head->first_tag;
2365
2366 cur_tag_head->first_tag = tag_ptr;
2367 hash_ptr->tag_ptr = tag_ptr;
2368
2369 return tag_ptr;
2370 }
2371
2372 \f
2373 /* Add an unknown {struct, union, enum} tag. */
2374
2375 STATIC void
2376 add_unknown_tag (ptag)
2377 tag_t *ptag; /* pointer to tag information */
2378 {
2379 shash_t *hash_ptr = ptag->hash_ptr;
2380 char *name_start = hash_ptr->string;
2381 char *name_end_p1 = name_start + hash_ptr->len;
2382 forward_t *f_next = ptag->forward_ref;
2383 forward_t *f_cur;
2384 int sym_index;
2385 int file_index = cur_file_ptr->file_index;
2386
2387 if (debug > 1)
2388 {
2389 char *agg_type = "{unknown aggregate type}";
2390 switch (ptag->basic_type)
2391 {
2392 case bt_Struct: agg_type = "struct"; break;
2393 case bt_Union: agg_type = "union"; break;
2394 case bt_Enum: agg_type = "enum"; break;
2395 default: break;
2396 }
2397
2398 fprintf (stderr, "unknown %s %.*s found\n",
2399 agg_type, (int) hash_ptr->len, name_start);
2400 }
2401
2402 sym_index = add_local_symbol (name_start,
2403 name_end_p1,
2404 st_Block,
2405 sc_Info,
2406 (symint_t) 0,
2407 (symint_t) 0);
2408
2409 (void) add_local_symbol (name_start,
2410 name_end_p1,
2411 st_End,
2412 sc_Info,
2413 (symint_t) 0,
2414 (symint_t) 0);
2415
2416 while (f_next != (forward_t *) 0)
2417 {
2418 f_cur = f_next;
2419 f_next = f_next->next;
2420
2421 f_cur->ifd_ptr->isym = file_index;
2422 f_cur->index_ptr->rndx.index = sym_index;
2423
2424 free_forward (f_cur);
2425 }
2426
2427 return;
2428 }
2429
2430 \f
2431 /* Add a procedure to the current file's list of procedures, and record
2432 this is the current procedure. If the assembler created a PDR for
2433 this procedure, use that to initialize the current PDR. */
2434
2435 STATIC void
2436 add_procedure (func_start, func_end_p1)
2437 const char *func_start; /* 1st byte of func name */
2438 const char *func_end_p1; /* 1st byte after func name */
2439 {
2440 register PDR *new_proc_ptr;
2441 register efdr_t *file_ptr = cur_file_ptr;
2442 register varray_t *vp = &file_ptr->procs;
2443 register symint_t value = 0;
2444 register st_t proc_type = st_Proc;
2445 register shash_t *shash_ptr = hash_string (func_start,
2446 func_end_p1 - func_start,
2447 &orig_str_hash[0],
2448 (symint_t *) 0);
2449
2450 if (debug)
2451 fputc ('\n', stderr);
2452
2453 if (vp->objects_last_page == vp->objects_per_page)
2454 add_varray_page (vp);
2455
2456 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2457
2458 vp->num_allocated++;
2459
2460
2461 /* Did the assembler create this procedure? If so, get the PDR information. */
2462 cur_oproc_ptr = (PDR *) 0;
2463 if (shash_ptr != (shash_t *) 0)
2464 {
2465 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2466 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2467
2468 if (old_proc_ptr != (PDR *) 0
2469 && sym_ptr != (SYMR *) 0
2470 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2471 {
2472 cur_oproc_begin = sym_ptr;
2473 cur_oproc_end = shash_ptr->end_ptr;
2474 value = sym_ptr->value;
2475
2476 cur_oproc_ptr = old_proc_ptr;
2477 proc_type = (st_t)sym_ptr->st;
2478 *new_proc_ptr = *old_proc_ptr; /* initialize */
2479 }
2480 }
2481
2482 if (cur_oproc_ptr == (PDR *) 0)
2483 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2484
2485 /* Determine the start of symbols. */
2486 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2487
2488 /* Push the start of the function. */
2489 (void) add_local_symbol (func_start, func_end_p1,
2490 proc_type, sc_Text,
2491 value,
2492 (symint_t) 0);
2493 }
2494
2495 \f
2496 /* Add a new filename, and set up all of the file relative
2497 virtual arrays (strings, symbols, aux syms, etc.). Record
2498 where the current file structure lives. */
2499
2500 STATIC void
2501 add_file (file_start, file_end_p1)
2502 const char *file_start; /* first byte in string */
2503 const char *file_end_p1; /* first byte after string */
2504 {
2505 static char zero_bytes[2] = { '\0', '\0' };
2506
2507 register Ptrdiff_t len = file_end_p1 - file_start;
2508 register int first_ch = *file_start;
2509 register efdr_t *file_ptr;
2510
2511 if (debug)
2512 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2513
2514 /* See if the file has already been created. */
2515 for (file_ptr = first_file;
2516 file_ptr != (efdr_t *) 0;
2517 file_ptr = file_ptr->next_file)
2518 {
2519 if (first_ch == file_ptr->name[0]
2520 && file_ptr->name[len] == '\0'
2521 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2522 {
2523 cur_file_ptr = file_ptr;
2524 break;
2525 }
2526 }
2527
2528 /* If this is a new file, create it. */
2529 if (file_ptr == (efdr_t *) 0)
2530 {
2531 if (file_desc.objects_last_page == file_desc.objects_per_page)
2532 add_varray_page (&file_desc);
2533
2534 file_ptr = cur_file_ptr
2535 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2536 *file_ptr = init_file;
2537
2538 file_ptr->file_index = file_desc.num_allocated++;
2539
2540 /* Allocate the string hash table. */
2541 file_ptr->shash_head = (shash_t **) allocate_page ();
2542
2543 /* Make sure 0 byte in string table is null */
2544 add_string (&file_ptr->strings,
2545 &file_ptr->shash_head[0],
2546 &zero_bytes[0],
2547 &zero_bytes[0],
2548 (shash_t **) 0);
2549
2550 if (file_end_p1 - file_start > PAGE_USIZE-2)
2551 fatal ("Filename goes over one page boundary.");
2552
2553 /* Push the start of the filename. We assume that the filename
2554 will be stored at string offset 1. */
2555 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2556 (symint_t) 0, (symint_t) 0);
2557 file_ptr->fdr.rss = 1;
2558 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2559 file_ptr->name_len = file_end_p1 - file_start;
2560
2561 /* Update the linked list of file descriptors. */
2562 *last_file_ptr = file_ptr;
2563 last_file_ptr = &file_ptr->next_file;
2564
2565 /* Add void & int types to the file (void should be first to catch
2566 errant 0's within the index fields). */
2567 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2568 hash_yes,
2569 &cur_file_ptr->thash_head[0]);
2570
2571 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2572 hash_yes,
2573 &cur_file_ptr->thash_head[0]);
2574 }
2575 }
2576
2577 \f
2578 /* Add a stream of random bytes to a varray. */
2579
2580 STATIC void
2581 add_bytes (vp, input_ptr, nitems)
2582 varray_t *vp; /* virtual array to add too */
2583 char *input_ptr; /* start of the bytes */
2584 Size_t nitems; /* # items to move */
2585 {
2586 register Size_t move_items;
2587 register Size_t move_bytes;
2588 register char *ptr;
2589
2590 while (nitems > 0)
2591 {
2592 if (vp->objects_last_page >= vp->objects_per_page)
2593 add_varray_page (vp);
2594
2595 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2596 move_items = vp->objects_per_page - vp->objects_last_page;
2597 if (move_items > nitems)
2598 move_items = nitems;
2599
2600 move_bytes = move_items * vp->object_size;
2601 nitems -= move_items;
2602
2603 if (move_bytes >= 32)
2604 {
2605 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2606 input_ptr += move_bytes;
2607 }
2608 else
2609 {
2610 while (move_bytes-- > 0)
2611 *ptr++ = *input_ptr++;
2612 }
2613 }
2614 }
2615
2616 \f
2617 /* Convert storage class to string. */
2618
2619 STATIC char *
2620 sc_to_string(storage_class)
2621 sc_t storage_class;
2622 {
2623 switch(storage_class)
2624 {
2625 case sc_Nil: return "Nil,";
2626 case sc_Text: return "Text,";
2627 case sc_Data: return "Data,";
2628 case sc_Bss: return "Bss,";
2629 case sc_Register: return "Register,";
2630 case sc_Abs: return "Abs,";
2631 case sc_Undefined: return "Undefined,";
2632 case sc_CdbLocal: return "CdbLocal,";
2633 case sc_Bits: return "Bits,";
2634 case sc_CdbSystem: return "CdbSystem,";
2635 case sc_RegImage: return "RegImage,";
2636 case sc_Info: return "Info,";
2637 case sc_UserStruct: return "UserStruct,";
2638 case sc_SData: return "SData,";
2639 case sc_SBss: return "SBss,";
2640 case sc_RData: return "RData,";
2641 case sc_Var: return "Var,";
2642 case sc_Common: return "Common,";
2643 case sc_SCommon: return "SCommon,";
2644 case sc_VarRegister: return "VarRegister,";
2645 case sc_Variant: return "Variant,";
2646 case sc_SUndefined: return "SUndefined,";
2647 case sc_Init: return "Init,";
2648 case sc_Max: return "Max,";
2649 }
2650
2651 return "???,";
2652 }
2653
2654 \f
2655 /* Convert symbol type to string. */
2656
2657 STATIC char *
2658 st_to_string(symbol_type)
2659 st_t symbol_type;
2660 {
2661 switch(symbol_type)
2662 {
2663 case st_Nil: return "Nil,";
2664 case st_Global: return "Global,";
2665 case st_Static: return "Static,";
2666 case st_Param: return "Param,";
2667 case st_Local: return "Local,";
2668 case st_Label: return "Label,";
2669 case st_Proc: return "Proc,";
2670 case st_Block: return "Block,";
2671 case st_End: return "End,";
2672 case st_Member: return "Member,";
2673 case st_Typedef: return "Typedef,";
2674 case st_File: return "File,";
2675 case st_RegReloc: return "RegReloc,";
2676 case st_Forward: return "Forward,";
2677 case st_StaticProc: return "StaticProc,";
2678 case st_Constant: return "Constant,";
2679 case st_Str: return "String,";
2680 case st_Number: return "Number,";
2681 case st_Expr: return "Expr,";
2682 case st_Type: return "Type,";
2683 case st_Max: return "Max,";
2684 }
2685
2686 return "???,";
2687 }
2688
2689 \f
2690 /* Read a line from standard input, and return the start of the buffer
2691 (which is grows if the line is too big). We split lines at the
2692 semi-colon, and return each logical line independently. */
2693
2694 STATIC char *
2695 read_line __proto((void))
2696 {
2697 static int line_split_p = 0;
2698 register int string_p = 0;
2699 register int comment_p = 0;
2700 register int ch;
2701 register char *ptr;
2702
2703 if (cur_line_start == (char *) 0)
2704 { /* allocate initial page */
2705 cur_line_start = (char *) allocate_page ();
2706 cur_line_alloc = PAGE_SIZE;
2707 }
2708
2709 if (!line_split_p)
2710 line_number++;
2711
2712 line_split_p = 0;
2713 cur_line_nbytes = 0;
2714
2715 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2716 {
2717 if (++cur_line_nbytes >= cur_line_alloc-1)
2718 {
2719 register int num_pages = cur_line_alloc / PAGE_SIZE;
2720 register char *old_buffer = cur_line_start;
2721
2722 cur_line_alloc += PAGE_SIZE;
2723 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2724 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2725
2726 ptr = cur_line_start + cur_line_nbytes - 1;
2727 }
2728
2729 if (ch == '\n')
2730 {
2731 *ptr++ = '\n';
2732 *ptr = '\0';
2733 cur_line_ptr = cur_line_start;
2734 return cur_line_ptr;
2735 }
2736
2737 else if (ch == '\0')
2738 error ("Null character found in input");
2739
2740 else if (!comment_p)
2741 {
2742 if (ch == '"')
2743 string_p = !string_p;
2744
2745 else if (ch == '#')
2746 comment_p++;
2747
2748 else if (ch == ';' && !string_p)
2749 {
2750 line_split_p = 1;
2751 *ptr++ = '\n';
2752 *ptr = '\0';
2753 cur_line_ptr = cur_line_start;
2754 return cur_line_ptr;
2755 }
2756 }
2757 }
2758
2759 if (ferror (stdin))
2760 pfatal_with_name (input_name);
2761
2762 cur_line_ptr = (char *) 0;
2763 return (char *) 0;
2764 }
2765
2766 \f
2767 /* Parse #.begin directives which have a label as the first argument
2768 which gives the location of the start of the block. */
2769
2770 STATIC void
2771 parse_begin (start)
2772 const char *start; /* start of directive */
2773 {
2774 const char *end_p1; /* end of label */
2775 int ch;
2776 shash_t *hash_ptr; /* hash pointer to lookup label */
2777
2778 if (cur_file_ptr == (efdr_t *) 0)
2779 {
2780 error ("#.begin directive without a preceding .file directive");
2781 return;
2782 }
2783
2784 if (cur_proc_ptr == (PDR *) 0)
2785 {
2786 error ("#.begin directive without a preceding .ent directive");
2787 return;
2788 }
2789
2790 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2791 ;
2792
2793 hash_ptr = hash_string (start,
2794 end_p1 - start,
2795 &orig_str_hash[0],
2796 (symint_t *) 0);
2797
2798 if (hash_ptr == (shash_t *) 0)
2799 {
2800 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2801 return;
2802 }
2803
2804 if (cur_oproc_begin == (SYMR *) 0)
2805 {
2806 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2807 return;
2808 }
2809
2810 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2811 st_Block, sc_Text,
2812 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2813 (symint_t) 0);
2814 }
2815
2816 \f
2817 /* Parse #.bend directives which have a label as the first argument
2818 which gives the location of the end of the block. */
2819
2820 STATIC void
2821 parse_bend (start)
2822 const char *start; /* start of directive */
2823 {
2824 const char *end_p1; /* end of label */
2825 int ch;
2826 shash_t *hash_ptr; /* hash pointer to lookup label */
2827
2828 if (cur_file_ptr == (efdr_t *) 0)
2829 {
2830 error ("#.begin directive without a preceding .file directive");
2831 return;
2832 }
2833
2834 if (cur_proc_ptr == (PDR *) 0)
2835 {
2836 error ("#.bend directive without a preceding .ent directive");
2837 return;
2838 }
2839
2840 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2841 ;
2842
2843 hash_ptr = hash_string (start,
2844 end_p1 - start,
2845 &orig_str_hash[0],
2846 (symint_t *) 0);
2847
2848 if (hash_ptr == (shash_t *) 0)
2849 {
2850 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2851 return;
2852 }
2853
2854 if (cur_oproc_begin == (SYMR *) 0)
2855 {
2856 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2857 return;
2858 }
2859
2860 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2861 st_End, sc_Text,
2862 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2863 (symint_t) 0);
2864 }
2865
2866 \f
2867 /* Parse #.def directives, which are contain standard COFF subdirectives
2868 to describe the debugging format. These subdirectives include:
2869
2870 .scl specify storage class
2871 .val specify a value
2872 .endef specify end of COFF directives
2873 .type specify the type
2874 .size specify the size of an array
2875 .dim specify an array dimension
2876 .tag specify a tag for a struct, union, or enum. */
2877
2878 STATIC void
2879 parse_def (name_start)
2880 const char *name_start; /* start of directive */
2881 {
2882 const char *dir_start; /* start of current directive*/
2883 const char *dir_end_p1; /* end+1 of current directive*/
2884 const char *arg_start; /* start of current argument */
2885 const char *arg_end_p1; /* end+1 of current argument */
2886 const char *name_end_p1; /* end+1 of label */
2887 const char *tag_start = (const char *) 0; /* start of tag name */
2888 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2889 sc_t storage_class = sc_Nil;
2890 st_t symbol_type = st_Nil;
2891 type_info_t t;
2892 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2893 int is_function = 0; /* != 0 if function */
2894 symint_t value = 0;
2895 symint_t indx = cur_file_ptr->void_type;
2896 int error_line = 0;
2897 symint_t arg_number;
2898 symint_t temp_array[ N_TQ ];
2899 int arg_was_number;
2900 int ch, i;
2901 Ptrdiff_t len;
2902
2903 static int inside_enumeration = 0; /* is this an enumeration? */
2904
2905
2906 /* Initialize the type information. */
2907 t = type_info_init;
2908
2909
2910 /* Search for the end of the name being defined. */
2911 /* Allow spaces and such in names for G++ templates, which produce stabs
2912 that look like:
2913
2914 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2915
2916 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2917 ;
2918
2919 if (ch == '\0')
2920 {
2921 error_line = __LINE__;
2922 saber_stop ();
2923 goto bomb_out;
2924 }
2925
2926 /* Parse the remaining subdirectives now. */
2927 dir_start = name_end_p1+1;
2928 for (;;)
2929 {
2930 while ((ch = *dir_start) == ' ' || ch == '\t')
2931 ++dir_start;
2932
2933 if (ch != '.')
2934 {
2935 error_line = __LINE__;
2936 saber_stop ();
2937 goto bomb_out;
2938 }
2939
2940 /* Are we done? */
2941 if (dir_start[1] == 'e'
2942 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2943 break;
2944
2945 /* Pick up the subdirective now */
2946 for (dir_end_p1 = dir_start+1;
2947 (ch = *dir_end_p1) != ' ' && ch != '\t';
2948 dir_end_p1++)
2949 {
2950 if (ch == '\0' || ISSPACE (ch))
2951 {
2952 error_line = __LINE__;
2953 saber_stop ();
2954 goto bomb_out;
2955 }
2956 }
2957
2958 /* Pick up the subdirective argument now. */
2959 arg_was_number = arg_number = 0;
2960 arg_end_p1 = (const char *) 0;
2961 arg_start = dir_end_p1+1;
2962 ch = *arg_start;
2963 while (ch == ' ' || ch == '\t')
2964 ch = *++arg_start;
2965
2966 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2967 {
2968 int ch2;
2969 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2970 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2971 arg_was_number++;
2972 }
2973
2974 else if (ch == '\0' || ISSPACE (ch))
2975 {
2976 error_line = __LINE__;
2977 saber_stop ();
2978 goto bomb_out;
2979 }
2980
2981 if (!arg_was_number)
2982 {
2983 /* Allow spaces and such in names for G++ templates. */
2984 for (arg_end_p1 = arg_start+1;
2985 (ch = *arg_end_p1) != ';' && ch != '\0';
2986 arg_end_p1++)
2987 ;
2988
2989 if (ch == '\0')
2990 {
2991 error_line = __LINE__;
2992 saber_stop ();
2993 goto bomb_out;
2994 }
2995 }
2996
2997 /* Classify the directives now. */
2998 len = dir_end_p1 - dir_start;
2999 switch (dir_start[1])
3000 {
3001 default:
3002 error_line = __LINE__;
3003 saber_stop ();
3004 goto bomb_out;
3005
3006 case 'd':
3007 if (len == sizeof (".dim")-1
3008 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3009 && arg_was_number)
3010 {
3011 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3012
3013 *t_ptr = arg_number;
3014 while (*arg_end_p1 == ',' && arg_was_number)
3015 {
3016 arg_start = arg_end_p1+1;
3017 ch = *arg_start;
3018 while (ch == ' ' || ch == '\t')
3019 ch = *++arg_start;
3020
3021 arg_was_number = 0;
3022 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3023 {
3024 int ch2;
3025 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3026 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3027 arg_was_number++;
3028
3029 if (t_ptr == &temp_array[0])
3030 {
3031 error_line = __LINE__;
3032 saber_stop ();
3033 goto bomb_out;
3034 }
3035
3036 *--t_ptr = arg_number;
3037 }
3038 }
3039
3040 /* Reverse order of dimensions. */
3041 while (t_ptr <= &temp_array[ N_TQ-1 ])
3042 {
3043 if (t.num_dims >= N_TQ-1)
3044 {
3045 error_line = __LINE__;
3046 saber_stop ();
3047 goto bomb_out;
3048 }
3049
3050 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3051 }
3052 break;
3053 }
3054 else
3055 {
3056 error_line = __LINE__;
3057 saber_stop ();
3058 goto bomb_out;
3059 }
3060
3061
3062 case 's':
3063 if (len == sizeof (".scl")-1
3064 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3065 && arg_was_number
3066 && arg_number < ((symint_t) C_MAX))
3067 {
3068 /* If the symbol is a static or external, we have
3069 already gotten the appropriate type and class, so
3070 make sure we don't override those values. This is
3071 needed because there are some type and classes that
3072 are not in COFF, such as short data, etc. */
3073 if (symbol_type == st_Nil)
3074 {
3075 symbol_type = map_coff_sym_type[arg_number];
3076 storage_class = map_coff_storage [arg_number];
3077 }
3078 break;
3079 }
3080
3081 else if (len == sizeof (".size")-1
3082 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3083 && arg_was_number)
3084 {
3085 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3086
3087 *t_ptr = arg_number;
3088 while (*arg_end_p1 == ',' && arg_was_number)
3089 {
3090 arg_start = arg_end_p1+1;
3091 ch = *arg_start;
3092 while (ch == ' ' || ch == '\t')
3093 ch = *++arg_start;
3094
3095 arg_was_number = 0;
3096 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3097 {
3098 int ch2;
3099 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3100 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3101 arg_was_number++;
3102
3103 if (t_ptr == &temp_array[0])
3104 {
3105 error_line = __LINE__;
3106 saber_stop ();
3107 goto bomb_out;
3108 }
3109
3110 *--t_ptr = arg_number;
3111 }
3112 }
3113
3114 /* Reverse order of sizes. */
3115 while (t_ptr <= &temp_array[ N_TQ-1 ])
3116 {
3117 if (t.num_sizes >= N_TQ-1)
3118 {
3119 error_line = __LINE__;
3120 saber_stop ();
3121 goto bomb_out;
3122 }
3123
3124 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3125 }
3126 break;
3127 }
3128
3129 else
3130 {
3131 error_line = __LINE__;
3132 saber_stop ();
3133 goto bomb_out;
3134 }
3135
3136
3137 case 't':
3138 if (len == sizeof (".type")-1
3139 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3140 && arg_was_number)
3141 {
3142 tq_t *tq_ptr = &t.type_qualifiers[0];
3143
3144 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3145 t.basic_type = map_coff_types [(int)t.orig_type];
3146 for (i = N_TQ-1; i >= 0; i--)
3147 {
3148 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3149 & N_TMASK);
3150
3151 if (dt != (int)DT_NON)
3152 *tq_ptr++ = map_coff_derived_type [dt];
3153 }
3154
3155 /* If this is a function, ignore it, so that we don't get
3156 two entries (one from the .ent, and one for the .def
3157 that precedes it). Save the type information so that
3158 the end block can properly add it after the begin block
3159 index. For MIPS knows what reason, we must strip off
3160 the function type at this point. */
3161 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3162 {
3163 is_function = 1;
3164 tq_ptr[-1] = tq_Nil;
3165 }
3166
3167 break;
3168 }
3169
3170 else if (len == sizeof (".tag")-1
3171 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3172 {
3173 tag_start = arg_start;
3174 tag_end_p1 = arg_end_p1;
3175 break;
3176 }
3177
3178 else
3179 {
3180 error_line = __LINE__;
3181 saber_stop ();
3182 goto bomb_out;
3183 }
3184
3185
3186 case 'v':
3187 if (len == sizeof (".val")-1
3188 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3189 {
3190 if (arg_was_number)
3191 value = arg_number;
3192
3193 /* If the value is not an integer value, it must be the
3194 name of a static or global item. Look up the name in
3195 the original symbol table to pick up the storage
3196 class, symbol type, etc. */
3197 else
3198 {
3199 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3200 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3201
3202 ext_hash_ptr = hash_string (arg_start,
3203 arg_end_p1 - arg_start,
3204 &ext_str_hash[0],
3205 (symint_t *) 0);
3206
3207 if (ext_hash_ptr != (shash_t *) 0
3208 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3209 eptr = ext_hash_ptr->esym_ptr;
3210
3211 orig_hash_ptr = hash_string (arg_start,
3212 arg_end_p1 - arg_start,
3213 &orig_str_hash[0],
3214 (symint_t *) 0);
3215
3216 if ((orig_hash_ptr == (shash_t *) 0
3217 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3218 && eptr == (EXTR *) 0)
3219 {
3220 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3221 (int) (arg_end_p1 - arg_start),
3222 arg_start);
3223 value = 0;
3224 }
3225 else
3226 {
3227 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3228 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3229 ? orig_hash_ptr->sym_ptr
3230 : &eptr->asym;
3231
3232 symbol_type = (st_t) ptr->st;
3233 storage_class = (sc_t) ptr->sc;
3234 value = ptr->value;
3235 }
3236 }
3237 break;
3238 }
3239 else
3240 {
3241 error_line = __LINE__;
3242 saber_stop ();
3243 goto bomb_out;
3244 }
3245 }
3246
3247 /* Set up to find next directive. */
3248 dir_start = arg_end_p1 + 1;
3249 }
3250
3251
3252 if (storage_class == sc_Bits)
3253 {
3254 t.bitfield = 1;
3255 t.extra_sizes = 1;
3256 }
3257 else
3258 t.extra_sizes = 0;
3259
3260 if (t.num_dims > 0)
3261 {
3262 int num_real_sizes = t.num_sizes - t.extra_sizes;
3263 int diff = t.num_dims - num_real_sizes;
3264 int i = t.num_dims - 1;
3265 int j;
3266
3267 if (num_real_sizes != 1 || diff < 0)
3268 {
3269 error_line = __LINE__;
3270 saber_stop ();
3271 goto bomb_out;
3272 }
3273
3274 /* If this is an array, make sure the same number of dimensions
3275 and sizes were passed, creating extra sizes for multiply
3276 dimensioned arrays if not passed. */
3277
3278 if (diff)
3279 {
3280 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3281 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3282
3283 t.num_sizes = i + 1;
3284 for ( i--; i >= 0; i-- )
3285 {
3286 if (t.dimensions[ i+1 ])
3287 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3288 else
3289 t.sizes[ i ] = t.sizes[ i+1 ];
3290 }
3291 }
3292 }
3293
3294 /* Except for enumeration members & begin/ending of scopes, put the
3295 type word in the aux. symbol table. */
3296
3297 if (symbol_type == st_Block || symbol_type == st_End)
3298 indx = 0;
3299
3300 else if (inside_enumeration)
3301 indx = cur_file_ptr->void_type;
3302
3303 else
3304 {
3305 if (t.basic_type == bt_Struct
3306 || t.basic_type == bt_Union
3307 || t.basic_type == bt_Enum)
3308 {
3309 if (tag_start == (char *) 0)
3310 {
3311 error ("No tag specified for %.*s",
3312 name_end_p1 - name_start,
3313 name_start);
3314 return;
3315 }
3316
3317 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3318 t.basic_type);
3319 }
3320
3321 if (is_function)
3322 {
3323 last_func_type_info = t;
3324 last_func_eptr = eptr;
3325 return;
3326 }
3327
3328 indx = add_aux_sym_tir (&t,
3329 hash_yes,
3330 &cur_file_ptr->thash_head[0]);
3331 }
3332
3333
3334 /* If this is an external or static symbol, update the appropriate
3335 external symbol. */
3336
3337 if (eptr != (EXTR *) 0
3338 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3339 {
3340 eptr->ifd = cur_file_ptr->file_index;
3341 eptr->asym.index = indx;
3342 }
3343
3344
3345 /* Do any last minute adjustments that are necessary. */
3346 switch (symbol_type)
3347 {
3348 default:
3349 break;
3350
3351
3352 /* For the beginning of structs, unions, and enumerations, the
3353 size info needs to be passed in the value field. */
3354
3355 case st_Block:
3356 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3357 {
3358 error_line = __LINE__;
3359 saber_stop ();
3360 goto bomb_out;
3361 }
3362
3363 else
3364 value = t.sizes[0];
3365
3366 inside_enumeration = (t.orig_type == T_ENUM);
3367 break;
3368
3369
3370 /* For the end of structs, unions, and enumerations, omit the
3371 name which is always ".eos". This needs to be done last, so
3372 that any error reporting above gives the correct name. */
3373
3374 case st_End:
3375 name_start = name_end_p1 = (const char *) 0;
3376 value = inside_enumeration = 0;
3377 break;
3378
3379
3380 /* Members of structures and unions that aren't bitfields, need
3381 to adjust the value from a byte offset to a bit offset.
3382 Members of enumerations do not have the value adjusted, and
3383 can be distinguished by indx == indexNil. For enumerations,
3384 update the maximum enumeration value. */
3385
3386 case st_Member:
3387 if (!t.bitfield && !inside_enumeration)
3388 value *= 8;
3389
3390 break;
3391 }
3392
3393
3394 /* Add the symbol, except for global symbols outside of functions,
3395 for which the external symbol table is fine enough. */
3396
3397 if (eptr == (EXTR *) 0
3398 || eptr->asym.st == (int)st_Nil
3399 || cur_proc_ptr != (PDR *) 0)
3400 {
3401 symint_t isym = add_local_symbol (name_start, name_end_p1,
3402 symbol_type, storage_class,
3403 value,
3404 indx);
3405
3406 /* deal with struct, union, and enum tags. */
3407 if (symbol_type == st_Block)
3408 {
3409 /* Create or update the tag information. */
3410 tag_t *tag_ptr = get_tag (name_start,
3411 name_end_p1,
3412 isym,
3413 t.basic_type);
3414
3415 /* If there are any forward references, fill in the appropriate
3416 file and symbol indexes. */
3417
3418 symint_t file_index = cur_file_ptr->file_index;
3419 forward_t *f_next = tag_ptr->forward_ref;
3420 forward_t *f_cur;
3421
3422 while (f_next != (forward_t *) 0)
3423 {
3424 f_cur = f_next;
3425 f_next = f_next->next;
3426
3427 f_cur->ifd_ptr->isym = file_index;
3428 f_cur->index_ptr->rndx.index = isym;
3429
3430 free_forward (f_cur);
3431 }
3432
3433 tag_ptr->forward_ref = (forward_t *) 0;
3434 }
3435 }
3436
3437 /* Normal return */
3438 return;
3439
3440 /* Error return, issue message. */
3441 bomb_out:
3442 if (error_line)
3443 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3444 else
3445 error ("compiler error, badly formed #.def");
3446
3447 return;
3448 }
3449
3450 \f
3451 /* Parse .end directives. */
3452
3453 STATIC void
3454 parse_end (start)
3455 const char *start; /* start of directive */
3456 {
3457 register const char *start_func, *end_func_p1;
3458 register int ch;
3459 register symint_t value;
3460 register FDR *orig_fdr;
3461
3462 if (cur_file_ptr == (efdr_t *) 0)
3463 {
3464 error (".end directive without a preceding .file directive");
3465 return;
3466 }
3467
3468 if (cur_proc_ptr == (PDR *) 0)
3469 {
3470 error (".end directive without a preceding .ent directive");
3471 return;
3472 }
3473
3474 /* Get the function name, skipping whitespace. */
3475 for (start_func = start; ISSPACE (*start_func); start_func++)
3476 ;
3477
3478 ch = *start_func;
3479 if (!IS_ASM_IDENT (ch))
3480 {
3481 error (".end directive has no name");
3482 return;
3483 }
3484
3485 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3486 ;
3487
3488
3489 /* Get the value field for creating the end from the original object
3490 file (which we find by locating the procedure start, and using the
3491 pointer to the end+1 block and backing up. The index points to a
3492 two word aux. symbol, whose first word is the index of the end
3493 symbol, and the second word is the type of the function return
3494 value. */
3495
3496 orig_fdr = cur_file_ptr->orig_fdr;
3497 value = 0;
3498 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3499 value = cur_oproc_end->value;
3500
3501 else
3502 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3503
3504 (void) add_local_symbol (start_func, end_func_p1,
3505 st_End, sc_Text,
3506 value,
3507 (symint_t) 0);
3508
3509 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3510 }
3511
3512 \f
3513 /* Parse .ent directives. */
3514
3515 STATIC void
3516 parse_ent (start)
3517 const char *start; /* start of directive */
3518 {
3519 register const char *start_func, *end_func_p1;
3520 register int ch;
3521
3522 if (cur_file_ptr == (efdr_t *) 0)
3523 {
3524 error (".ent directive without a preceding .file directive");
3525 return;
3526 }
3527
3528 if (cur_proc_ptr != (PDR *) 0)
3529 {
3530 error ("second .ent directive found before .end directive");
3531 return;
3532 }
3533
3534 for (start_func = start; ISSPACE (*start_func); start_func++)
3535 ;
3536
3537 ch = *start_func;
3538 if (!IS_ASM_IDENT (ch))
3539 {
3540 error (".ent directive has no name");
3541 return;
3542 }
3543
3544 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3545 ;
3546
3547 (void) add_procedure (start_func, end_func_p1);
3548 }
3549
3550 \f
3551 /* Parse .file directives. */
3552
3553 STATIC void
3554 parse_file (start)
3555 const char *start; /* start of directive */
3556 {
3557 char *p;
3558 register char *start_name, *end_name_p1;
3559
3560 (void) strtol (start, &p, 0);
3561 if (start == p
3562 || (start_name = local_index (p, '"')) == (char *) 0
3563 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3564 {
3565 error ("Invalid .file directive");
3566 return;
3567 }
3568
3569 if (cur_proc_ptr != (PDR *) 0)
3570 {
3571 error ("No way to handle .file within .ent/.end section");
3572 return;
3573 }
3574
3575 add_file (start_name, end_name_p1);
3576 }
3577
3578 \f
3579 /* Make sure the @stabs symbol is emitted. */
3580
3581 static void
3582 mark_stabs (start)
3583 const char *start; /* Start of directive (ignored) */
3584 {
3585 if (!stabs_seen)
3586 {
3587 /* Add a dummy @stabs symbol. */
3588 stabs_seen = 1;
3589 (void) add_local_symbol (stabs_symbol,
3590 stabs_symbol + sizeof (stabs_symbol),
3591 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3592
3593 }
3594 }
3595
3596 \f
3597 /* Parse .stabs directives.
3598
3599 .stabs directives have five fields:
3600 "string" a string, encoding the type information.
3601 code a numeric code, defined in <stab.h>
3602 0 a zero
3603 0 a zero or line number
3604 value a numeric value or an address.
3605
3606 If the value is relocatable, we transform this into:
3607 iss points as an index into string space
3608 value value from lookup of the name
3609 st st from lookup of the name
3610 sc sc from lookup of the name
3611 index code|CODE_MASK
3612
3613 If the value is not relocatable, we transform this into:
3614 iss points as an index into string space
3615 value value
3616 st st_Nil
3617 sc sc_Nil
3618 index code|CODE_MASK
3619
3620 .stabn directives have four fields (string is null):
3621 code a numeric code, defined in <stab.h>
3622 0 a zero
3623 0 a zero or a line number
3624 value a numeric value or an address. */
3625
3626 STATIC void
3627 parse_stabs_common (string_start, string_end, rest)
3628 const char *string_start; /* start of string or NULL */
3629 const char *string_end; /* end+1 of string or NULL */
3630 const char *rest; /* rest of the directive. */
3631 {
3632 efdr_t *save_file_ptr = cur_file_ptr;
3633 symint_t code;
3634 symint_t value;
3635 char *p;
3636 st_t st;
3637 sc_t sc;
3638 int ch;
3639
3640 if (stabs_seen == 0)
3641 mark_stabs ("");
3642
3643 /* Read code from stabs. */
3644 if (!ISDIGIT (*rest))
3645 {
3646 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3647 return;
3648 }
3649
3650 code = strtol (rest, &p, 0);
3651
3652 /* Line number stabs are handled differently, since they have two values,
3653 the line number and the address of the label. We use the index field
3654 (aka code) to hold the line number, and the value field to hold the
3655 address. The symbol type is st_Label, which should be different from
3656 the other stabs, so that gdb can recognize it. */
3657
3658 if (code == (int)N_SLINE)
3659 {
3660 SYMR *sym_ptr, dummy_symr;
3661 shash_t *shash_ptr;
3662
3663 /* Skip ,0, */
3664 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3665 {
3666 error ("Invalid line number .stabs/.stabn directive");
3667 return;
3668 }
3669
3670 code = strtol (p+3, &p, 0);
3671 ch = *++p;
3672 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3673 {
3674 error ("Invalid line number .stabs/.stabn directive");
3675 return;
3676 }
3677
3678 dummy_symr.index = code;
3679 if (dummy_symr.index != code)
3680 {
3681 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3682 code);
3683
3684 return;
3685 }
3686
3687 shash_ptr = hash_string (p,
3688 strlen (p) - 1,
3689 &orig_str_hash[0],
3690 (symint_t *) 0);
3691
3692 if (shash_ptr == (shash_t *) 0
3693 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3694 {
3695 error ("Invalid .stabs/.stabn directive, value not found");
3696 return;
3697 }
3698
3699 if ((st_t) sym_ptr->st != st_Label)
3700 {
3701 error ("Invalid line number .stabs/.stabn directive");
3702 return;
3703 }
3704
3705 st = st_Label;
3706 sc = (sc_t) sym_ptr->sc;
3707 value = sym_ptr->value;
3708 }
3709 else
3710 {
3711 /* Skip ,<num>,<num>, */
3712 if (*p++ != ',')
3713 goto failure;
3714 for (; ISDIGIT (*p); p++)
3715 ;
3716 if (*p++ != ',')
3717 goto failure;
3718 for (; ISDIGIT (*p); p++)
3719 ;
3720 if (*p++ != ',')
3721 goto failure;
3722 ch = *p;
3723 if (!IS_ASM_IDENT (ch) && ch != '-')
3724 {
3725 failure:
3726 error ("Invalid .stabs/.stabn directive, bad character");
3727 return;
3728 }
3729
3730 if (ISDIGIT (ch) || ch == '-')
3731 {
3732 st = st_Nil;
3733 sc = sc_Nil;
3734 value = strtol (p, &p, 0);
3735 if (*p != '\n')
3736 {
3737 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3738 return;
3739 }
3740 }
3741 else if (!IS_ASM_IDENT (ch))
3742 {
3743 error ("Invalid .stabs/.stabn directive, bad character");
3744 return;
3745 }
3746 else
3747 {
3748 SYMR *sym_ptr;
3749 shash_t *shash_ptr;
3750 const char *start, *end_p1;
3751
3752 start = p;
3753 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3754 {
3755 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3756 end_p1 = start + strlen(start) - 1;
3757 }
3758
3759 shash_ptr = hash_string (start,
3760 end_p1 - start,
3761 &orig_str_hash[0],
3762 (symint_t *) 0);
3763
3764 if (shash_ptr == (shash_t *) 0
3765 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3766 {
3767 shash_ptr = hash_string (start,
3768 end_p1 - start,
3769 &ext_str_hash[0],
3770 (symint_t *) 0);
3771
3772 if (shash_ptr == (shash_t *) 0
3773 || shash_ptr->esym_ptr == (EXTR *) 0)
3774 {
3775 error ("Invalid .stabs/.stabn directive, value not found");
3776 return;
3777 }
3778 else
3779 sym_ptr = &(shash_ptr->esym_ptr->asym);
3780 }
3781
3782 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3783 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3784 {
3785 sc = scNil;
3786 st = stNil;
3787 }
3788 else
3789 {
3790 sc = (sc_t) sym_ptr->sc;
3791 st = (st_t) sym_ptr->st;
3792 }
3793 value = sym_ptr->value;
3794
3795 ch = *end_p1++;
3796 if (ch != '\n')
3797 {
3798 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3799 || ((ch != '+') && (ch != '-')))
3800 {
3801 error ("Invalid .stabs/.stabn directive, badly formed value");
3802 return;
3803 }
3804 if (ch == '+')
3805 value += strtol (end_p1, &p, 0);
3806 else if (ch == '-')
3807 value -= strtol (end_p1, &p, 0);
3808
3809 if (*p != '\n')
3810 {
3811 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3812 return;
3813 }
3814 }
3815 }
3816 code = MIPS_MARK_STAB(code);
3817 }
3818
3819 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3820 /* Restore normal file type. */
3821 cur_file_ptr = save_file_ptr;
3822 }
3823
3824
3825 STATIC void
3826 parse_stabs (start)
3827 const char *start; /* start of directive */
3828 {
3829 const char *end = local_index (start+1, '"');
3830
3831 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3832 {
3833 error ("Invalid .stabs directive, no string");
3834 return;
3835 }
3836
3837 parse_stabs_common (start+1, end, end+2);
3838 }
3839
3840
3841 STATIC void
3842 parse_stabn (start)
3843 const char *start; /* start of directive */
3844 {
3845 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3846 }
3847
3848 \f
3849 /* Parse the input file, and write the lines to the output file
3850 if needed. */
3851
3852 STATIC void
3853 parse_input __proto((void))
3854 {
3855 register char *p;
3856 register int i;
3857 register thead_t *ptag_head;
3858 register tag_t *ptag;
3859 register tag_t *ptag_next;
3860
3861 if (debug)
3862 fprintf (stderr, "\tinput\n");
3863
3864 /* Add a dummy scope block around the entire compilation unit for
3865 structures defined outside of blocks. */
3866 ptag_head = allocate_thead ();
3867 ptag_head->first_tag = 0;
3868 ptag_head->prev = cur_tag_head;
3869 cur_tag_head = ptag_head;
3870
3871 while ((p = read_line ()) != (char *) 0)
3872 {
3873 /* Skip leading blanks */
3874 while (ISSPACE (*p))
3875 p++;
3876
3877 /* See if it's a directive we handle. If so, dispatch handler. */
3878 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3879 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3880 && ISSPACE (p[pseudo_ops[i].len]))
3881 {
3882 p += pseudo_ops[i].len; /* skip to first argument */
3883 while (ISSPACE (*p))
3884 p++;
3885
3886 (*pseudo_ops[i].func)( p );
3887 break;
3888 }
3889 }
3890
3891 /* Process any tags at global level. */
3892 ptag_head = cur_tag_head;
3893 cur_tag_head = ptag_head->prev;
3894
3895 for (ptag = ptag_head->first_tag;
3896 ptag != (tag_t *) 0;
3897 ptag = ptag_next)
3898 {
3899 if (ptag->forward_ref != (forward_t *) 0)
3900 add_unknown_tag (ptag);
3901
3902 ptag_next = ptag->same_block;
3903 ptag->hash_ptr->tag_ptr = ptag->same_name;
3904 free_tag (ptag);
3905 }
3906
3907 free_thead (ptag_head);
3908
3909 }
3910
3911 \f
3912 /* Update the global headers with the final offsets in preparation
3913 to write out the .T file. */
3914
3915 STATIC void
3916 update_headers __proto((void))
3917 {
3918 register symint_t i;
3919 register efdr_t *file_ptr;
3920
3921 /* Set up the symbolic header. */
3922 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3923 symbolic_header.magic = orig_sym_hdr.magic;
3924 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3925
3926 /* Set up global counts. */
3927 symbolic_header.issExtMax = ext_strings.num_allocated;
3928 symbolic_header.idnMax = dense_num.num_allocated;
3929 symbolic_header.ifdMax = file_desc.num_allocated;
3930 symbolic_header.iextMax = ext_symbols.num_allocated;
3931 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3932 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3933 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3934 symbolic_header.crfd = orig_sym_hdr.crfd;
3935
3936
3937 /* Loop through each file, figuring out how many local syms,
3938 line numbers, etc. there are. Also, put out end symbol
3939 for the filename. */
3940
3941 for (file_ptr = first_file;
3942 file_ptr != (efdr_t *) 0;
3943 file_ptr = file_ptr->next_file)
3944 {
3945 register SYMR *sym_start;
3946 register SYMR *sym;
3947 register SYMR *sym_end_p1;
3948 register FDR *fd_ptr = file_ptr->orig_fdr;
3949
3950 cur_file_ptr = file_ptr;
3951
3952 /* Copy st_Static symbols from the original local symbol table if
3953 they did not get added to the new local symbol table.
3954 This happens with stabs-in-ecoff or if the source file is
3955 compiled without debugging. */
3956 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3957 sym_end_p1 = sym_start + fd_ptr->csym;
3958 for (sym = sym_start; sym < sym_end_p1; sym++)
3959 {
3960 if ((st_t)sym->st == st_Static)
3961 {
3962 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3963 register Size_t len = strlen (str);
3964 register shash_t *hash_ptr;
3965
3966 /* Ignore internal labels. */
3967 if (str[0] == '$' && str[1] == 'L')
3968 continue;
3969 hash_ptr = hash_string (str,
3970 (Ptrdiff_t)len,
3971 &file_ptr->shash_head[0],
3972 (symint_t *) 0);
3973 if (hash_ptr == (shash_t *) 0)
3974 {
3975 (void) add_local_symbol (str, str + len,
3976 (st_t)sym->st, (sc_t)sym->sc,
3977 (symint_t)sym->value,
3978 (symint_t)indexNil);
3979 }
3980 }
3981 }
3982 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3983 st_End, sc_Text,
3984 (symint_t) 0,
3985 (symint_t) 0);
3986
3987 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3988 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3989 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3990
3991 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3992 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3993 symbolic_header.isymMax += file_ptr->fdr.csym;
3994
3995 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3996 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3997 symbolic_header.iauxMax += file_ptr->fdr.caux;
3998
3999 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4000 file_ptr->fdr.issBase = symbolic_header.issMax;
4001 symbolic_header.issMax += file_ptr->fdr.cbSs;
4002 }
4003
4004 #ifndef ALIGN_SYMTABLE_OFFSET
4005 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4006 #endif
4007
4008 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4009 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4010 if (i > 0)
4011 {
4012 symbolic_header.cbLineOffset = file_offset;
4013 file_offset += i;
4014 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4015 }
4016
4017 i = symbolic_header.ioptMax; /* optimization symbols */
4018 if (((long) i) > 0)
4019 {
4020 symbolic_header.cbOptOffset = file_offset;
4021 file_offset += i * sizeof (OPTR);
4022 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4023 }
4024
4025 i = symbolic_header.idnMax; /* dense numbers */
4026 if (i > 0)
4027 {
4028 symbolic_header.cbDnOffset = file_offset;
4029 file_offset += i * sizeof (DNR);
4030 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4031 }
4032
4033 i = symbolic_header.ipdMax; /* procedure tables */
4034 if (i > 0)
4035 {
4036 symbolic_header.cbPdOffset = file_offset;
4037 file_offset += i * sizeof (PDR);
4038 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4039 }
4040
4041 i = symbolic_header.isymMax; /* local symbols */
4042 if (i > 0)
4043 {
4044 symbolic_header.cbSymOffset = file_offset;
4045 file_offset += i * sizeof (SYMR);
4046 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4047 }
4048
4049 i = symbolic_header.iauxMax; /* aux syms. */
4050 if (i > 0)
4051 {
4052 symbolic_header.cbAuxOffset = file_offset;
4053 file_offset += i * sizeof (TIR);
4054 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4055 }
4056
4057 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4058 if (i > 0)
4059 {
4060 symbolic_header.cbSsOffset = file_offset;
4061 file_offset += i;
4062 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4063 }
4064
4065 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4066 if (i > 0)
4067 {
4068 symbolic_header.cbSsExtOffset = file_offset;
4069 file_offset += i;
4070 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4071 }
4072
4073 i = symbolic_header.ifdMax; /* file tables */
4074 if (i > 0)
4075 {
4076 symbolic_header.cbFdOffset = file_offset;
4077 file_offset += i * sizeof (FDR);
4078 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4079 }
4080
4081 i = symbolic_header.crfd; /* relative file descriptors */
4082 if (i > 0)
4083 {
4084 symbolic_header.cbRfdOffset = file_offset;
4085 file_offset += i * sizeof (symint_t);
4086 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4087 }
4088
4089 i = symbolic_header.iextMax; /* external symbols */
4090 if (i > 0)
4091 {
4092 symbolic_header.cbExtOffset = file_offset;
4093 file_offset += i * sizeof (EXTR);
4094 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4095 }
4096 }
4097
4098 \f
4099 /* Write out a varray at a given location. */
4100
4101 STATIC void
4102 write_varray (vp, offset, str)
4103 varray_t *vp; /* virtual array */
4104 off_t offset; /* offset to write varray to */
4105 const char *str; /* string to print out when tracing */
4106 {
4107 int num_write, sys_write;
4108 vlinks_t *ptr;
4109
4110 if (vp->num_allocated == 0)
4111 return;
4112
4113 if (debug)
4114 {
4115 fputs ("\twarray\tvp = ", stderr);
4116 fprintf (stderr, HOST_PTR_PRINTF, vp);
4117 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4118 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4119 }
4120
4121 if (file_offset != offset
4122 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4123 pfatal_with_name (object_name);
4124
4125 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4126 {
4127 num_write = (ptr->next == (vlinks_t *) 0)
4128 ? vp->objects_last_page * vp->object_size
4129 : vp->objects_per_page * vp->object_size;
4130
4131 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4132 if (sys_write <= 0)
4133 pfatal_with_name (object_name);
4134
4135 else if (sys_write != num_write)
4136 fatal ("Wrote %d bytes to %s, system returned %d",
4137 num_write,
4138 object_name,
4139 sys_write);
4140
4141 file_offset += num_write;
4142 }
4143 }
4144
4145 \f
4146 /* Write out the symbol table in the object file. */
4147
4148 STATIC void
4149 write_object __proto((void))
4150 {
4151 int sys_write;
4152 efdr_t *file_ptr;
4153 off_t offset;
4154
4155 if (debug)
4156 {
4157 fputs ("\n\twrite\tvp = ", stderr);
4158 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4159 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4160 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4161 }
4162
4163 sys_write = fwrite ((PTR_T) &symbolic_header,
4164 1,
4165 sizeof (symbolic_header),
4166 object_stream);
4167
4168 if (sys_write < 0)
4169 pfatal_with_name (object_name);
4170
4171 else if (sys_write != sizeof (symbolic_header))
4172 fatal ("Wrote %d bytes to %s, system returned %d",
4173 sizeof (symbolic_header),
4174 object_name,
4175 sys_write);
4176
4177
4178 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4179
4180 if (symbolic_header.cbLine > 0) /* line numbers */
4181 {
4182 long sys_write;
4183
4184 if (file_offset != symbolic_header.cbLineOffset
4185 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4186 pfatal_with_name (object_name);
4187
4188 if (debug)
4189 {
4190 fputs ("\twrite\tvp = ", stderr);
4191 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4192 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4193 (long) symbolic_header.cbLineOffset,
4194 (long) symbolic_header.cbLine, "Line numbers");
4195 }
4196
4197 sys_write = fwrite ((PTR_T) orig_linenum,
4198 1,
4199 symbolic_header.cbLine,
4200 object_stream);
4201
4202 if (sys_write <= 0)
4203 pfatal_with_name (object_name);
4204
4205 else if (sys_write != symbolic_header.cbLine)
4206 fatal ("Wrote %d bytes to %s, system returned %d",
4207 symbolic_header.cbLine,
4208 object_name,
4209 sys_write);
4210
4211 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4212 }
4213
4214 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4215 {
4216 long sys_write;
4217 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4218
4219 if (file_offset != symbolic_header.cbOptOffset
4220 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4221 pfatal_with_name (object_name);
4222
4223 if (debug)
4224 {
4225 fputs ("\twrite\tvp = ", stderr);
4226 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4227 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4228 (long) symbolic_header.cbOptOffset,
4229 num_write, "Optimizer symbols");
4230 }
4231
4232 sys_write = fwrite ((PTR_T) orig_opt_syms,
4233 1,
4234 num_write,
4235 object_stream);
4236
4237 if (sys_write <= 0)
4238 pfatal_with_name (object_name);
4239
4240 else if (sys_write != num_write)
4241 fatal ("Wrote %d bytes to %s, system returned %d",
4242 num_write,
4243 object_name,
4244 sys_write);
4245
4246 file_offset = symbolic_header.cbOptOffset + num_write;
4247 }
4248
4249 if (symbolic_header.idnMax > 0) /* dense numbers */
4250 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4251
4252 if (symbolic_header.ipdMax > 0) /* procedure tables */
4253 {
4254 offset = symbolic_header.cbPdOffset;
4255 for (file_ptr = first_file;
4256 file_ptr != (efdr_t *) 0;
4257 file_ptr = file_ptr->next_file)
4258 {
4259 write_varray (&file_ptr->procs, offset, "Procedure tables");
4260 offset = file_offset;
4261 }
4262 }
4263
4264 if (symbolic_header.isymMax > 0) /* local symbols */
4265 {
4266 offset = symbolic_header.cbSymOffset;
4267 for (file_ptr = first_file;
4268 file_ptr != (efdr_t *) 0;
4269 file_ptr = file_ptr->next_file)
4270 {
4271 write_varray (&file_ptr->symbols, offset, "Local symbols");
4272 offset = file_offset;
4273 }
4274 }
4275
4276 if (symbolic_header.iauxMax > 0) /* aux symbols */
4277 {
4278 offset = symbolic_header.cbAuxOffset;
4279 for (file_ptr = first_file;
4280 file_ptr != (efdr_t *) 0;
4281 file_ptr = file_ptr->next_file)
4282 {
4283 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4284 offset = file_offset;
4285 }
4286 }
4287
4288 if (symbolic_header.issMax > 0) /* local strings */
4289 {
4290 offset = symbolic_header.cbSsOffset;
4291 for (file_ptr = first_file;
4292 file_ptr != (efdr_t *) 0;
4293 file_ptr = file_ptr->next_file)
4294 {
4295 write_varray (&file_ptr->strings, offset, "Local strings");
4296 offset = file_offset;
4297 }
4298 }
4299
4300 if (symbolic_header.issExtMax > 0) /* external strings */
4301 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4302
4303 if (symbolic_header.ifdMax > 0) /* file tables */
4304 {
4305 offset = symbolic_header.cbFdOffset;
4306 if (file_offset != offset
4307 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4308 pfatal_with_name (object_name);
4309
4310 file_offset = offset;
4311 for (file_ptr = first_file;
4312 file_ptr != (efdr_t *) 0;
4313 file_ptr = file_ptr->next_file)
4314 {
4315 if (debug)
4316 {
4317 fputs ("\twrite\tvp = ", stderr);
4318 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4319 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4320 file_offset, (unsigned long) sizeof (FDR),
4321 "File header");
4322 }
4323
4324 sys_write = fwrite (&file_ptr->fdr,
4325 1,
4326 sizeof (FDR),
4327 object_stream);
4328
4329 if (sys_write < 0)
4330 pfatal_with_name (object_name);
4331
4332 else if (sys_write != sizeof (FDR))
4333 fatal ("Wrote %d bytes to %s, system returned %d",
4334 sizeof (FDR),
4335 object_name,
4336 sys_write);
4337
4338 file_offset = offset += sizeof (FDR);
4339 }
4340 }
4341
4342 if (symbolic_header.crfd > 0) /* relative file descriptors */
4343 {
4344 long sys_write;
4345 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4346
4347 if (file_offset != symbolic_header.cbRfdOffset
4348 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4349 pfatal_with_name (object_name);
4350
4351 if (debug)
4352 {
4353 fputs ("\twrite\tvp = ", stderr);
4354 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4355 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4356 (long) symbolic_header.cbRfdOffset,
4357 num_write, "Relative file descriptors");
4358 }
4359
4360 sys_write = fwrite (orig_rfds,
4361 1,
4362 num_write,
4363 object_stream);
4364
4365 if (sys_write <= 0)
4366 pfatal_with_name (object_name);
4367
4368 else if (sys_write != num_write)
4369 fatal ("Wrote %d bytes to %s, system returned %d",
4370 num_write,
4371 object_name,
4372 sys_write);
4373
4374 file_offset = symbolic_header.cbRfdOffset + num_write;
4375 }
4376
4377 if (symbolic_header.issExtMax > 0) /* external symbols */
4378 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4379
4380 if (fclose (object_stream) != 0)
4381 pfatal_with_name (object_name);
4382 }
4383
4384 \f
4385 /* Read some bytes at a specified location, and return a pointer. */
4386
4387 STATIC page_t *
4388 read_seek (size, offset, str)
4389 Size_t size; /* # bytes to read */
4390 off_t offset; /* offset to read at */
4391 const char *str; /* name for tracing */
4392 {
4393 page_t *ptr;
4394 long sys_read = 0;
4395
4396 if (size == 0) /* nothing to read */
4397 return (page_t *) 0;
4398
4399 if (debug)
4400 fprintf (stderr,
4401 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4402 (unsigned long) size, (unsigned long) offset, file_offset, str);
4403
4404 #ifndef MALLOC_CHECK
4405 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4406 #else
4407 ptr = (page_t *) xcalloc (1, size);
4408 #endif
4409
4410 /* If we need to seek, and the distance is nearby, just do some reads,
4411 to speed things up. */
4412 if (file_offset != offset)
4413 {
4414 symint_t difference = offset - file_offset;
4415
4416 if (difference < 8)
4417 {
4418 char small_buffer[8];
4419
4420 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4421 if (sys_read <= 0)
4422 pfatal_with_name (obj_in_name);
4423
4424 if (sys_read != difference)
4425 fatal ("Wanted to read %d bytes from %s, system returned %d",
4426 size,
4427 obj_in_name,
4428 sys_read);
4429 }
4430 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4431 pfatal_with_name (obj_in_name);
4432 }
4433
4434 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4435 if (sys_read <= 0)
4436 pfatal_with_name (obj_in_name);
4437
4438 if (sys_read != size)
4439 fatal ("Wanted to read %d bytes from %s, system returned %d",
4440 size,
4441 obj_in_name,
4442 sys_read);
4443
4444 file_offset = offset + size;
4445
4446 if (file_offset > max_file_offset)
4447 max_file_offset = file_offset;
4448
4449 return ptr;
4450 }
4451
4452 \f
4453 /* Read the existing object file (and copy to the output object file
4454 if it is different from the input object file), and remove the old
4455 symbol table. */
4456
4457 STATIC void
4458 copy_object __proto((void))
4459 {
4460 char buffer[ PAGE_SIZE ];
4461 register int sys_read;
4462 register int remaining;
4463 register int num_write;
4464 register int sys_write;
4465 register int fd, es;
4466 register int delete_ifd = 0;
4467 register int *remap_file_number;
4468 struct stat stat_buf;
4469
4470 if (debug)
4471 fprintf (stderr, "\tcopy\n");
4472
4473 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4474 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4475 pfatal_with_name (obj_in_name);
4476
4477 sys_read = fread ((PTR_T) &orig_file_header,
4478 1,
4479 sizeof (struct filehdr),
4480 obj_in_stream);
4481
4482 if (sys_read < 0)
4483 pfatal_with_name (obj_in_name);
4484
4485 else if (sys_read == 0 && feof (obj_in_stream))
4486 return; /* create a .T file sans file header */
4487
4488 else if (sys_read < sizeof (struct filehdr))
4489 fatal ("Wanted to read %d bytes from %s, system returned %d",
4490 sizeof (struct filehdr),
4491 obj_in_name,
4492 sys_read);
4493
4494
4495 if (orig_file_header.f_nsyms != sizeof (HDRR))
4496 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4497 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4498
4499
4500 /* Read in the current symbolic header. */
4501 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4502 pfatal_with_name (input_name);
4503
4504 sys_read = fread ((PTR_T) &orig_sym_hdr,
4505 1,
4506 sizeof (orig_sym_hdr),
4507 obj_in_stream);
4508
4509 if (sys_read < 0)
4510 pfatal_with_name (object_name);
4511
4512 else if (sys_read < sizeof (struct filehdr))
4513 fatal ("Wanted to read %d bytes from %s, system returned %d",
4514 sizeof (struct filehdr),
4515 obj_in_name,
4516 sys_read);
4517
4518
4519 /* Read in each of the sections if they exist in the object file.
4520 We read things in in the order the mips assembler creates the
4521 sections, so in theory no extra seeks are done.
4522
4523 For simplicity sake, round each read up to a page boundary,
4524 we may want to revisit this later.... */
4525
4526 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4527
4528 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4529 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4530 orig_sym_hdr.cbLineOffset,
4531 "Line numbers");
4532
4533 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4534 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4535 orig_sym_hdr.cbPdOffset,
4536 "Procedure tables");
4537
4538 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4539 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4540 orig_sym_hdr.cbSymOffset,
4541 "Local symbols");
4542
4543 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4544 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4545 orig_sym_hdr.cbAuxOffset,
4546 "Aux. symbols");
4547
4548 if (orig_sym_hdr.issMax > 0) /* local strings */
4549 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4550 orig_sym_hdr.cbSsOffset,
4551 "Local strings");
4552
4553 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4554 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4555 orig_sym_hdr.cbSsExtOffset,
4556 "External strings");
4557
4558 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4559 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4560 orig_sym_hdr.cbFdOffset,
4561 "File tables");
4562
4563 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4564 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4565 orig_sym_hdr.cbRfdOffset,
4566 "Relative file descriptors");
4567
4568 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4569 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4570 orig_sym_hdr.cbExtOffset,
4571 "External symbols");
4572
4573 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4574 {
4575 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4576 orig_sym_hdr.cbDnOffset,
4577 "Dense numbers");
4578
4579 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4580 }
4581
4582 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4583 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4584 orig_sym_hdr.cbOptOffset,
4585 "Optimizer symbols");
4586
4587
4588
4589 /* Abort if the symbol table is not last. */
4590 if (max_file_offset != stat_buf.st_size)
4591 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4592 max_file_offset,
4593 stat_buf.st_size);
4594
4595
4596 /* If the first original file descriptor is a dummy which the assembler
4597 put out, but there are no symbols in it, skip it now. */
4598 if (orig_sym_hdr.ifdMax > 1
4599 && orig_files->csym == 2
4600 && orig_files->caux == 0)
4601 {
4602 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4603 char *suffix = local_rindex (filename, '.');
4604
4605 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4606 delete_ifd = 1;
4607 }
4608
4609
4610 /* Create array to map original file numbers to the new file numbers
4611 (in case there are duplicate filenames, we collapse them into one
4612 file section, the MIPS assembler may or may not collapse them). */
4613
4614 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4615
4616 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4617 {
4618 register FDR *fd_ptr = ORIG_FILES (fd);
4619 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4620
4621 /* file support itself. */
4622 add_file (filename, filename + strlen (filename));
4623 remap_file_number[fd] = cur_file_ptr->file_index;
4624 }
4625
4626 if (delete_ifd > 0) /* just in case */
4627 remap_file_number[0] = remap_file_number[1];
4628
4629
4630 /* Loop, adding each of the external symbols. These must be in
4631 order or otherwise we would have to change the relocation
4632 entries. We don't just call add_bytes, because we need to have
4633 the names put into the external hash table. We set the type to
4634 'void' for now, and parse_def will fill in the correct type if it
4635 is in the symbol table. We must add the external symbols before
4636 the locals, since the locals do lookups against the externals. */
4637
4638 if (debug)
4639 fprintf (stderr, "\tehash\n");
4640
4641 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4642 {
4643 register EXTR *eptr = orig_ext_syms + es;
4644 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4645 register unsigned ifd = eptr->ifd;
4646
4647 (void) add_ext_symbol (ename,
4648 ename + strlen (ename),
4649 (st_t) eptr->asym.st,
4650 (sc_t) eptr->asym.sc,
4651 eptr->asym.value,
4652 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4653 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4654 }
4655
4656
4657 /* For each of the files in the object file, copy the symbols, and such
4658 into the varrays for the new object file. */
4659
4660 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4661 {
4662 register FDR *fd_ptr = ORIG_FILES (fd);
4663 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4664 register SYMR *sym_start;
4665 register SYMR *sym;
4666 register SYMR *sym_end_p1;
4667 register PDR *proc_start;
4668 register PDR *proc;
4669 register PDR *proc_end_p1;
4670
4671 /* file support itself. */
4672 add_file (filename, filename + strlen (filename));
4673 cur_file_ptr->orig_fdr = fd_ptr;
4674
4675 /* Copy stuff that's just passed through (such as line #'s) */
4676 cur_file_ptr->fdr.adr = fd_ptr->adr;
4677 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4678 cur_file_ptr->fdr.cline = fd_ptr->cline;
4679 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4680 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4681 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4682 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4683 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4684 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4685 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4686
4687 if (debug)
4688 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4689
4690 /* For each of the static and global symbols defined, add them
4691 to the hash table of original symbols, so we can look up
4692 their values. */
4693
4694 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4695 sym_end_p1 = sym_start + fd_ptr->csym;
4696 for (sym = sym_start; sym < sym_end_p1; sym++)
4697 {
4698 switch ((st_t) sym->st)
4699 {
4700 default:
4701 break;
4702
4703 case st_Global:
4704 case st_Static:
4705 case st_Label:
4706 case st_Proc:
4707 case st_StaticProc:
4708 {
4709 auto symint_t hash_index;
4710 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4711 register Size_t len = strlen (str);
4712 register shash_t *shash_ptr = hash_string (str,
4713 (Ptrdiff_t)len,
4714 &orig_str_hash[0],
4715 &hash_index);
4716
4717 if (shash_ptr != (shash_t *) 0)
4718 error ("internal error, %s is already in original symbol table", str);
4719
4720 else
4721 {
4722 shash_ptr = allocate_shash ();
4723 shash_ptr->next = orig_str_hash[hash_index];
4724 orig_str_hash[hash_index] = shash_ptr;
4725
4726 shash_ptr->len = len;
4727 shash_ptr->indx = indexNil;
4728 shash_ptr->string = str;
4729 shash_ptr->sym_ptr = sym;
4730 }
4731 }
4732 break;
4733
4734 case st_End:
4735 if ((sc_t) sym->sc == sc_Text)
4736 {
4737 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4738
4739 if (*str != '\0')
4740 {
4741 register Size_t len = strlen (str);
4742 register shash_t *shash_ptr = hash_string (str,
4743 (Ptrdiff_t)len,
4744 &orig_str_hash[0],
4745 (symint_t *) 0);
4746
4747 if (shash_ptr != (shash_t *) 0)
4748 shash_ptr->end_ptr = sym;
4749 }
4750 }
4751 break;
4752
4753 }
4754 }
4755
4756 if (debug)
4757 {
4758 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4759 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4760 }
4761
4762 /* Go through each of the procedures in this file, and add the
4763 procedure pointer to the hash entry for the given name. */
4764
4765 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4766 proc_end_p1 = proc_start + fd_ptr->cpd;
4767 for (proc = proc_start; proc < proc_end_p1; proc++)
4768 {
4769 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4770 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4771 register Size_t len = strlen (str);
4772 register shash_t *shash_ptr = hash_string (str,
4773 (Ptrdiff_t)len,
4774 &orig_str_hash[0],
4775 (symint_t *) 0);
4776
4777 if (shash_ptr == (shash_t *) 0)
4778 error ("internal error, function %s is not in original symbol table", str);
4779
4780 else
4781 shash_ptr->proc_ptr = proc;
4782 }
4783
4784 if (debug)
4785 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4786
4787 }
4788 cur_file_ptr = first_file;
4789
4790
4791 /* Copy all of the object file up to the symbol table. Originally
4792 we were going to use ftruncate, but that doesn't seem to work
4793 on Ultrix 3.1.... */
4794
4795 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4796 pfatal_with_name (obj_in_name);
4797
4798 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4799 pfatal_with_name (object_name);
4800
4801 for (remaining = orig_file_header.f_symptr;
4802 remaining > 0;
4803 remaining -= num_write)
4804 {
4805 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4806 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4807 if (sys_read <= 0)
4808 pfatal_with_name (obj_in_name);
4809
4810 else if (sys_read != num_write)
4811 fatal ("Wanted to read %d bytes from %s, system returned %d",
4812 num_write,
4813 obj_in_name,
4814 sys_read);
4815
4816 sys_write = fwrite (buffer, 1, num_write, object_stream);
4817 if (sys_write <= 0)
4818 pfatal_with_name (object_name);
4819
4820 else if (sys_write != num_write)
4821 fatal ("Wrote %d bytes to %s, system returned %d",
4822 num_write,
4823 object_name,
4824 sys_write);
4825 }
4826 }
4827
4828 \f
4829 /* Ye olde main program. */
4830
4831 int
4832 main (argc, argv)
4833 int argc;
4834 char *argv[];
4835 {
4836 int iflag = 0;
4837 char *p = local_rindex (argv[0], '/');
4838 char *num_end;
4839 int option;
4840 int i;
4841
4842 progname = (p != 0) ? p+1 : argv[0];
4843
4844 (void) signal (SIGSEGV, catch_signal);
4845 (void) signal (SIGBUS, catch_signal);
4846 (void) signal (SIGABRT, catch_signal);
4847
4848 #if !defined(__SABER__) && !defined(lint)
4849 if (sizeof (efdr_t) > PAGE_USIZE)
4850 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4851 sizeof (efdr_t),
4852 PAGE_USIZE);
4853
4854 if (sizeof (page_t) != PAGE_USIZE)
4855 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4856 sizeof (page_t),
4857 PAGE_USIZE);
4858
4859 #endif
4860
4861 alloc_counts[ alloc_type_none ].alloc_name = "none";
4862 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4863 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4864 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4865 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4866 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4867 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4868 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4869 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4870
4871 int_type_info = type_info_init;
4872 int_type_info.basic_type = bt_Int;
4873
4874 void_type_info = type_info_init;
4875 void_type_info.basic_type = bt_Void;
4876
4877 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4878 switch (option)
4879 {
4880 default:
4881 had_errors++;
4882 break;
4883
4884 case 'd':
4885 debug = strtol (optarg, &num_end, 0);
4886 if ((unsigned)debug > 4 || num_end == optarg)
4887 had_errors++;
4888
4889 break;
4890
4891 case 'I':
4892 if (rename_output || obj_in_name != (char *) 0)
4893 had_errors++;
4894 else
4895 rename_output = 1;
4896
4897 /* fall through to 'i' case. */
4898
4899 case 'i':
4900 if (obj_in_name == (char *) 0)
4901 {
4902 obj_in_name = optarg;
4903 iflag++;
4904 }
4905 else
4906 had_errors++;
4907 break;
4908
4909 case 'o':
4910 if (object_name == (char *) 0)
4911 object_name = optarg;
4912 else
4913 had_errors++;
4914 break;
4915
4916 case 'v':
4917 version++;
4918 break;
4919 }
4920
4921 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4922 obj_in_name = argv[--argc];
4923
4924 if (object_name == (char *) 0 && optind <= argc - 2)
4925 object_name = argv[--argc];
4926
4927 /* If there is an output name, but no input name use
4928 the same file for both, deleting the name between
4929 opening it for input and opening it for output. */
4930 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4931 {
4932 obj_in_name = object_name;
4933 delete_input = 1;
4934 }
4935
4936 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4937 {
4938 fprintf (stderr, "Calling Sequence:\n");
4939 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4940 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4941 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4942 fprintf (stderr, "\n");
4943 fprintf (stderr, "Debug levels are:\n");
4944 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4945 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4946 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4947 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4948 return 1;
4949 }
4950
4951
4952 if (version)
4953 {
4954 fprintf (stderr, "mips-tfile version %s", version_string);
4955 #ifdef TARGET_VERSION
4956 TARGET_VERSION;
4957 #endif
4958 fputc ('\n', stderr);
4959 }
4960
4961 if (obj_in_name == (char *) 0)
4962 obj_in_name = object_name;
4963
4964 if (rename_output && rename (object_name, obj_in_name) != 0)
4965 {
4966 char *buffer = (char *) allocate_multiple_pages (4);
4967 int len;
4968 int len2;
4969 int in_fd;
4970 int out_fd;
4971
4972 /* Rename failed, copy input file */
4973 in_fd = open (object_name, O_RDONLY, 0666);
4974 if (in_fd < 0)
4975 pfatal_with_name (object_name);
4976
4977 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4978 if (out_fd < 0)
4979 pfatal_with_name (obj_in_name);
4980
4981 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4982 {
4983 len2 = write (out_fd, buffer, len);
4984 if (len2 < 0)
4985 pfatal_with_name (object_name);
4986
4987 if (len != len2)
4988 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4989 }
4990
4991 free_multiple_pages ((page_t *)buffer, 4);
4992
4993 if (len < 0)
4994 pfatal_with_name (object_name);
4995
4996 if (close (in_fd) < 0)
4997 pfatal_with_name (object_name);
4998
4999 if (close (out_fd) < 0)
5000 pfatal_with_name (obj_in_name);
5001 }
5002
5003 /* Must open input before output, since the output may be the same file, and
5004 we need to get the input handle before truncating it. */
5005 obj_in_stream = fopen (obj_in_name, "r");
5006 if (obj_in_stream == (FILE *) 0)
5007 pfatal_with_name (obj_in_name);
5008
5009 if (delete_input && unlink (obj_in_name) != 0)
5010 pfatal_with_name (obj_in_name);
5011
5012 object_stream = fopen (object_name, "w");
5013 if (object_stream == (FILE *) 0)
5014 pfatal_with_name (object_name);
5015
5016 if (strcmp (argv[optind], "-") != 0)
5017 {
5018 input_name = argv[optind];
5019 if (freopen (argv[optind], "r", stdin) != stdin)
5020 pfatal_with_name (argv[optind]);
5021 }
5022
5023 copy_object (); /* scan & copy object file */
5024 parse_input (); /* scan all of input */
5025
5026 update_headers (); /* write out tfile */
5027 write_object ();
5028
5029 if (debug)
5030 {
5031 fprintf (stderr, "\n\tAllocation summary:\n\n");
5032 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5033 if (alloc_counts[i].total_alloc)
5034 {
5035 fprintf (stderr,
5036 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5037 alloc_counts[i].alloc_name,
5038 alloc_counts[i].total_alloc,
5039 alloc_counts[i].total_free,
5040 alloc_counts[i].total_pages);
5041 }
5042 }
5043
5044 return (had_errors) ? 1 : 0;
5045 }
5046
5047 \f
5048 STATIC const char *
5049 my_strsignal (s)
5050 int s;
5051 {
5052 #ifdef HAVE_STRSIGNAL
5053 return strsignal (s);
5054 #else
5055 if (s >= 0 && s < NSIG)
5056 {
5057 # ifdef NO_SYS_SIGLIST
5058 static char buffer[30];
5059
5060 sprintf (buffer, "Unknown signal %d", s);
5061 return buffer;
5062 # else
5063 return sys_siglist[s];
5064 # endif
5065 }
5066 else
5067 return NULL;
5068 #endif /* HAVE_STRSIGNAL */
5069 }
5070
5071 /* Catch a signal and exit without dumping core. */
5072
5073 STATIC void
5074 catch_signal (signum)
5075 int signum;
5076 {
5077 (void) signal (signum, SIG_DFL); /* just in case... */
5078 fatal (my_strsignal(signum));
5079 }
5080
5081 /* Print a fatal error message. NAME is the text.
5082 Also include a system error message based on `errno'. */
5083
5084 void
5085 pfatal_with_name (msg)
5086 char *msg;
5087 {
5088 int save_errno = errno; /* just in case.... */
5089 if (line_number > 0)
5090 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5091 else
5092 fprintf (stderr, "%s:", progname);
5093
5094 errno = save_errno;
5095 if (errno == 0)
5096 fprintf (stderr, "[errno = 0] %s\n", msg);
5097 else
5098 perror (msg);
5099
5100 exit (1);
5101 }
5102
5103 \f
5104 /* Procedure to abort with an out of bounds error message. It has
5105 type int, so it can be used with an ?: expression within the
5106 ORIG_xxx macros, but the function never returns. */
5107
5108 static int
5109 out_of_bounds (indx, max, str, prog_line)
5110 symint_t indx; /* index that is out of bounds */
5111 symint_t max; /* maximum index */
5112 const char *str; /* string to print out */
5113 int prog_line; /* line number within mips-tfile.c */
5114 {
5115 if (indx < max) /* just in case */
5116 return 0;
5117
5118 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5119 progname, input_name, line_number, indx, str, max, prog_line);
5120
5121 exit (1);
5122 return 0; /* turn off warning messages */
5123 }
5124
5125 \f
5126 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5127 like sbrk's behind its back (or sbrk isn't available). If we use
5128 sbrk, we assume it gives us zeroed pages. */
5129
5130 #ifndef MALLOC_CHECK
5131 #ifdef USE_MALLOC
5132
5133 STATIC page_t *
5134 allocate_cluster (npages)
5135 Size_t npages;
5136 {
5137 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5138
5139 if (value == 0)
5140 fatal ("Virtual memory exhausted.");
5141
5142 if (debug > 3)
5143 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5144
5145 return value;
5146 }
5147
5148 #else /* USE_MALLOC */
5149
5150 STATIC page_t *
5151 allocate_cluster (npages)
5152 Size_t npages;
5153 {
5154 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5155 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5156
5157 if (offset != 0) /* align to a page boundary */
5158 {
5159 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5160 pfatal_with_name ("allocate_cluster");
5161
5162 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5163 }
5164
5165 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5166 pfatal_with_name ("allocate_cluster");
5167
5168 if (debug > 3)
5169 {
5170 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5171 (unsigned long) npages);
5172 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5173 fputs ("\n", stderr);
5174 }
5175
5176 return ptr;
5177 }
5178
5179 #endif /* USE_MALLOC */
5180
5181
5182 static page_t *cluster_ptr = NULL;
5183 static unsigned pages_left = 0;
5184
5185 #endif /* MALLOC_CHECK */
5186
5187
5188 /* Allocate some pages (which is initialized to 0). */
5189
5190 STATIC page_t *
5191 allocate_multiple_pages (npages)
5192 Size_t npages;
5193 {
5194 #ifndef MALLOC_CHECK
5195 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5196 {
5197 pages_left = MAX_CLUSTER_PAGES;
5198 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5199 }
5200
5201 if (npages <= pages_left)
5202 {
5203 page_t *ptr = cluster_ptr;
5204 cluster_ptr += npages;
5205 pages_left -= npages;
5206 return ptr;
5207 }
5208
5209 return allocate_cluster (npages);
5210
5211 #else /* MALLOC_CHECK */
5212 return (page_t *) xcalloc (npages, PAGE_SIZE);
5213
5214 #endif /* MALLOC_CHECK */
5215 }
5216
5217
5218 /* Release some pages. */
5219
5220 STATIC void
5221 free_multiple_pages (page_ptr, npages)
5222 page_t *page_ptr;
5223 Size_t npages;
5224 {
5225 #ifndef MALLOC_CHECK
5226 if (pages_left == 0)
5227 {
5228 cluster_ptr = page_ptr;
5229 pages_left = npages;
5230 }
5231
5232 else if ((page_ptr + npages) == cluster_ptr)
5233 {
5234 cluster_ptr -= npages;
5235 pages_left += npages;
5236 }
5237
5238 /* otherwise the page is not freed. If more than call is
5239 done, we probably should worry about it, but at present,
5240 the free pages is done right after an allocate. */
5241
5242 #else /* MALLOC_CHECK */
5243 free ((char *) page_ptr);
5244
5245 #endif /* MALLOC_CHECK */
5246 }
5247
5248
5249 /* Allocate one page (which is initialized to 0). */
5250
5251 STATIC page_t *
5252 allocate_page __proto((void))
5253 {
5254 #ifndef MALLOC_CHECK
5255 if (pages_left == 0)
5256 {
5257 pages_left = MAX_CLUSTER_PAGES;
5258 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5259 }
5260
5261 pages_left--;
5262 return cluster_ptr++;
5263
5264 #else /* MALLOC_CHECK */
5265 return (page_t *) xcalloc (1, PAGE_SIZE);
5266
5267 #endif /* MALLOC_CHECK */
5268 }
5269
5270 \f
5271 /* Allocate scoping information. */
5272
5273 STATIC scope_t *
5274 allocate_scope __proto((void))
5275 {
5276 register scope_t *ptr;
5277 static scope_t initial_scope;
5278
5279 #ifndef MALLOC_CHECK
5280 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5281 if (ptr != (scope_t *) 0)
5282 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5283
5284 else
5285 {
5286 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5287 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5288
5289 if (unallocated == 0)
5290 {
5291 unallocated = PAGE_SIZE / sizeof (scope_t);
5292 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5293 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5294 }
5295
5296 ptr = &cur_page->scope[ --unallocated ];
5297 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5298 }
5299
5300 #else
5301 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5302
5303 #endif
5304
5305 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5306 *ptr = initial_scope;
5307 return ptr;
5308 }
5309
5310 /* Free scoping information. */
5311
5312 STATIC void
5313 free_scope (ptr)
5314 scope_t *ptr;
5315 {
5316 alloc_counts[ (int)alloc_type_scope ].total_free++;
5317
5318 #ifndef MALLOC_CHECK
5319 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5320 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5321
5322 #else
5323 xfree ((PTR_T) ptr);
5324 #endif
5325
5326 }
5327
5328 \f
5329 /* Allocate links for pages in a virtual array. */
5330
5331 STATIC vlinks_t *
5332 allocate_vlinks __proto((void))
5333 {
5334 register vlinks_t *ptr;
5335 static vlinks_t initial_vlinks;
5336
5337 #ifndef MALLOC_CHECK
5338 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5339 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5340
5341 if (unallocated == 0)
5342 {
5343 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5344 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5345 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5346 }
5347
5348 ptr = &cur_page->vlinks[ --unallocated ];
5349 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5350
5351 #else
5352 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5353
5354 #endif
5355
5356 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5357 *ptr = initial_vlinks;
5358 return ptr;
5359 }
5360
5361 \f
5362 /* Allocate string hash buckets. */
5363
5364 STATIC shash_t *
5365 allocate_shash __proto((void))
5366 {
5367 register shash_t *ptr;
5368 static shash_t initial_shash;
5369
5370 #ifndef MALLOC_CHECK
5371 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5372 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5373
5374 if (unallocated == 0)
5375 {
5376 unallocated = PAGE_SIZE / sizeof (shash_t);
5377 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5378 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5379 }
5380
5381 ptr = &cur_page->shash[ --unallocated ];
5382 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5383
5384 #else
5385 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5386
5387 #endif
5388
5389 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5390 *ptr = initial_shash;
5391 return ptr;
5392 }
5393
5394 \f
5395 /* Allocate type hash buckets. */
5396
5397 STATIC thash_t *
5398 allocate_thash __proto((void))
5399 {
5400 register thash_t *ptr;
5401 static thash_t initial_thash;
5402
5403 #ifndef MALLOC_CHECK
5404 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5405 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5406
5407 if (unallocated == 0)
5408 {
5409 unallocated = PAGE_SIZE / sizeof (thash_t);
5410 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5411 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5412 }
5413
5414 ptr = &cur_page->thash[ --unallocated ];
5415 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5416
5417 #else
5418 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5419
5420 #endif
5421
5422 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5423 *ptr = initial_thash;
5424 return ptr;
5425 }
5426
5427 \f
5428 /* Allocate structure, union, or enum tag information. */
5429
5430 STATIC tag_t *
5431 allocate_tag __proto((void))
5432 {
5433 register tag_t *ptr;
5434 static tag_t initial_tag;
5435
5436 #ifndef MALLOC_CHECK
5437 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5438 if (ptr != (tag_t *) 0)
5439 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5440
5441 else
5442 {
5443 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5444 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5445
5446 if (unallocated == 0)
5447 {
5448 unallocated = PAGE_SIZE / sizeof (tag_t);
5449 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5450 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5451 }
5452
5453 ptr = &cur_page->tag[ --unallocated ];
5454 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5455 }
5456
5457 #else
5458 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5459
5460 #endif
5461
5462 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5463 *ptr = initial_tag;
5464 return ptr;
5465 }
5466
5467 /* Free scoping information. */
5468
5469 STATIC void
5470 free_tag (ptr)
5471 tag_t *ptr;
5472 {
5473 alloc_counts[ (int)alloc_type_tag ].total_free++;
5474
5475 #ifndef MALLOC_CHECK
5476 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5477 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5478
5479 #else
5480 xfree ((PTR_T) ptr);
5481 #endif
5482
5483 }
5484
5485 \f
5486 /* Allocate forward reference to a yet unknown tag. */
5487
5488 STATIC forward_t *
5489 allocate_forward __proto((void))
5490 {
5491 register forward_t *ptr;
5492 static forward_t initial_forward;
5493
5494 #ifndef MALLOC_CHECK
5495 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5496 if (ptr != (forward_t *) 0)
5497 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5498
5499 else
5500 {
5501 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5502 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5503
5504 if (unallocated == 0)
5505 {
5506 unallocated = PAGE_SIZE / sizeof (forward_t);
5507 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5508 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5509 }
5510
5511 ptr = &cur_page->forward[ --unallocated ];
5512 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5513 }
5514
5515 #else
5516 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5517
5518 #endif
5519
5520 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5521 *ptr = initial_forward;
5522 return ptr;
5523 }
5524
5525 /* Free scoping information. */
5526
5527 STATIC void
5528 free_forward (ptr)
5529 forward_t *ptr;
5530 {
5531 alloc_counts[ (int)alloc_type_forward ].total_free++;
5532
5533 #ifndef MALLOC_CHECK
5534 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5535 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5536
5537 #else
5538 xfree ((PTR_T) ptr);
5539 #endif
5540
5541 }
5542
5543 \f
5544 /* Allocate head of type hash list. */
5545
5546 STATIC thead_t *
5547 allocate_thead __proto((void))
5548 {
5549 register thead_t *ptr;
5550 static thead_t initial_thead;
5551
5552 #ifndef MALLOC_CHECK
5553 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5554 if (ptr != (thead_t *) 0)
5555 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5556
5557 else
5558 {
5559 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5560 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5561
5562 if (unallocated == 0)
5563 {
5564 unallocated = PAGE_SIZE / sizeof (thead_t);
5565 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5566 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5567 }
5568
5569 ptr = &cur_page->thead[ --unallocated ];
5570 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5571 }
5572
5573 #else
5574 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5575
5576 #endif
5577
5578 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5579 *ptr = initial_thead;
5580 return ptr;
5581 }
5582
5583 /* Free scoping information. */
5584
5585 STATIC void
5586 free_thead (ptr)
5587 thead_t *ptr;
5588 {
5589 alloc_counts[ (int)alloc_type_thead ].total_free++;
5590
5591 #ifndef MALLOC_CHECK
5592 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5593 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5594
5595 #else
5596 xfree ((PTR_T) ptr);
5597 #endif
5598
5599 }
5600
5601 #endif /* MIPS_DEBUGGING_INFO */
5602
5603 \f
5604 /* Output an error message and exit */
5605
5606 /*VARARGS*/
5607 void
5608 fatal VPROTO((const char *format, ...))
5609 {
5610 #ifndef __STDC__
5611 char *format;
5612 #endif
5613 va_list ap;
5614
5615 VA_START (ap, format);
5616
5617 #ifndef __STDC__
5618 format = va_arg (ap, char *);
5619 #endif
5620
5621 if (line_number > 0)
5622 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5623 else
5624 fprintf (stderr, "%s:", progname);
5625
5626 vfprintf (stderr, format, ap);
5627 va_end (ap);
5628 fprintf (stderr, "\n");
5629 if (line_number > 0)
5630 fprintf (stderr, "line:\t%s\n", cur_line_start);
5631
5632 saber_stop ();
5633 exit (1);
5634 }
5635
5636 /*VARARGS*/
5637 void
5638 error VPROTO((const char *format, ...))
5639 {
5640 #ifndef __STDC__
5641 char *format;
5642 #endif
5643 va_list ap;
5644
5645 VA_START (ap, format);
5646
5647 #ifndef __STDC__
5648 format = va_arg (ap, char *);
5649 #endif
5650
5651 if (line_number > 0)
5652 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5653 else
5654 fprintf (stderr, "%s:", progname);
5655
5656 vfprintf (stderr, format, ap);
5657 fprintf (stderr, "\n");
5658 if (line_number > 0)
5659 fprintf (stderr, "line:\t%s\n", cur_line_start);
5660
5661 had_errors++;
5662 va_end (ap);
5663
5664 saber_stop ();
5665 }
5666
5667 /* More 'friendly' abort that prints the line and file.
5668 config.h can #define abort fancy_abort if you like that sort of thing. */
5669
5670 void
5671 fancy_abort ()
5672 {
5673 fatal ("Internal abort.");
5674 }
5675 \f
5676
5677 /* When `malloc.c' is compiled with `rcheck' defined,
5678 it calls this function to report clobberage. */
5679
5680 void
5681 botch (s)
5682 const char *s;
5683 {
5684 fatal (s);
5685 }
5686
5687 /* Same as `malloc' but report error if no memory available. */
5688
5689 PTR_T
5690 xmalloc (size)
5691 Size_t size;
5692 {
5693 register PTR_T value = malloc (size);
5694 if (value == 0)
5695 fatal ("Virtual memory exhausted.");
5696
5697 if (debug > 3)
5698 {
5699 fputs ("\tmalloc\tptr = ", stderr);
5700 fprintf (stderr, HOST_PTR_PRINTF, value);
5701 fprintf (stderr, ", size = %10lu\n", (unsigned long) size);
5702 }
5703
5704 return value;
5705 }
5706
5707 /* Same as `calloc' but report error if no memory available. */
5708
5709 PTR_T
5710 xcalloc (size1, size2)
5711 Size_t size1, size2;
5712 {
5713 register PTR_T value = calloc (size1, size2);
5714 if (value == 0)
5715 fatal ("Virtual memory exhausted.");
5716
5717 if (debug > 3)
5718 {
5719 fputs ("\tcalloc\tptr = ", stderr);
5720 fprintf (stderr, HOST_PTR_PRINTF, value);
5721 fprintf (stderr, ", size1 = %10lu, size2 = %10lu [%lu]\n",
5722 (unsigned long) size1, (unsigned long) size2,
5723 (unsigned long) size1*size2);
5724 }
5725
5726 return value;
5727 }
5728
5729 /* Same as `realloc' but report error if no memory available. */
5730
5731 PTR_T
5732 xrealloc (ptr, size)
5733 PTR_T ptr;
5734 Size_t size;
5735 {
5736 register PTR_T result = realloc (ptr, size);
5737 if (!result)
5738 fatal ("Virtual memory exhausted.");
5739
5740 if (debug > 3)
5741 {
5742 fputs ("\trealloc\tptr = ", stderr);
5743 fprintf (stderr, HOST_PTR_PRINTF, result);
5744 fprintf (stderr, ", size = %10lu, orig = ", size);
5745 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5746 fputs ("\n", stderr);
5747 }
5748
5749 return result;
5750 }
5751
5752 void
5753 xfree (ptr)
5754 PTR_T ptr;
5755 {
5756 if (debug > 3)
5757 {
5758 fputs ("\tfree\tptr = ", stderr);
5759 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5760 fputs ("\n", stderr);
5761 }
5762
5763 free (ptr);
5764 }
5765
5766 \f
5767 /* Define our own index/rindex, since the local and global symbol
5768 structures as defined by MIPS has an 'index' field. */
5769
5770 STATIC char *
5771 local_index (str, sentinel)
5772 const char *str;
5773 int sentinel;
5774 {
5775 int ch;
5776
5777 for ( ; (ch = *str) != sentinel; str++)
5778 {
5779 if (ch == '\0')
5780 return (char *) 0;
5781 }
5782
5783 return (char *)str;
5784 }
5785
5786 STATIC char *
5787 local_rindex (str, sentinel)
5788 const char *str;
5789 int sentinel;
5790 {
5791 int ch;
5792 const char *ret = (const char *) 0;
5793
5794 for ( ; (ch = *str) != '\0'; str++)
5795 {
5796 if (ch == sentinel)
5797 ret = str;
5798 }
5799
5800 return (char *)ret;
5801 }
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