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