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PR c++/3478
[official-gcc.git] / gcc / mips-tfile.c
blob314ed53fab7c859fa406f8e9495ebc59707e8d6c
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
6 2002, 2003 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 2, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING. If not, write to the Free
23 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 02111-1307, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indices are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "coretypes.h"
606 #include "tm.h"
607 #include "version.h"
608 #include "intl.h"
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 /* Include getopt.h for the sake of getopt_long. */
615 #include "getopt.h"
616
617 #ifndef __LINE__
618 #define __LINE__ 0
619 #endif
620
621 /* Due to size_t being defined in sys/types.h and different
622 in stddef.h, we have to do this by hand..... Note, these
623 types are correct for MIPS based systems, and may not be
624 correct for other systems. Ultrix 4.0 and Silicon Graphics
625 have this fixed, but since the following is correct, and
626 the fact that including stddef.h gets you GCC's version
627 instead of the standard one it's not worth it to fix it. */
628
629 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
630 #define Size_t long unsigned int
631 #else
632 #define Size_t unsigned int
633 #endif
634 #define Ptrdiff_t long
635
636 /* The following might be called from obstack or malloc,
637 so they can't be static. */
638
639 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
640 extern void fancy_abort (void) ATTRIBUTE_NORETURN;
641 extern void botch (const char *) ATTRIBUTE_NORETURN;
642
643 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
644 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
645 \f
646 #ifndef MIPS_DEBUGGING_INFO
647
648 static int line_number;
649 static int cur_line_start;
650 static int debug;
651 static int had_errors;
652 static const char *progname;
653 static const char *input_name;
654
655 int
656 main (void)
657 {
658 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
659 exit (1);
660 }
661
662 #else /* MIPS_DEBUGGING defined */
663 \f
664 /* The local and global symbols have a field index, so undo any defines
665 of index -> strchr. */
666
667 #undef index
668
669 #include <signal.h>
670
671 #ifndef CROSS_COMPILE
672 #include <a.out.h>
673 #else
674 #include "mips/a.out.h"
675 #endif /* CROSS_COMPILE */
676
677 #include "gstab.h"
678
679 #define STAB_CODE_TYPE enum __stab_debug_code
680
681 #ifndef MALLOC_CHECK
682 #ifdef __SABER__
683 #define MALLOC_CHECK
684 #endif
685 #endif
686
687 #define IS_ASM_IDENT(ch) \
688 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
689
690 \f
691 /* Redefinition of storage classes as an enumeration for better
692 debugging. */
693
694 typedef enum sc {
695 sc_Nil = scNil, /* no storage class */
696 sc_Text = scText, /* text symbol */
697 sc_Data = scData, /* initialized data symbol */
698 sc_Bss = scBss, /* un-initialized data symbol */
699 sc_Register = scRegister, /* value of symbol is register number */
700 sc_Abs = scAbs, /* value of symbol is absolute */
701 sc_Undefined = scUndefined, /* who knows? */
702 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
703 sc_Bits = scBits, /* this is a bit field */
704 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
705 sc_RegImage = scRegImage, /* register value saved on stack */
706 sc_Info = scInfo, /* symbol contains debugger information */
707 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
708 sc_SData = scSData, /* load time only small data */
709 sc_SBss = scSBss, /* load time only small common */
710 sc_RData = scRData, /* load time only read only data */
711 sc_Var = scVar, /* Var parameter (fortran,pascal) */
712 sc_Common = scCommon, /* common variable */
713 sc_SCommon = scSCommon, /* small common */
714 sc_VarRegister = scVarRegister, /* Var parameter in a register */
715 sc_Variant = scVariant, /* Variant record */
716 sc_SUndefined = scSUndefined, /* small undefined(external) data */
717 sc_Init = scInit, /* .init section symbol */
718 sc_Max = scMax /* Max storage class+1 */
719 } sc_t;
720
721 /* Redefinition of symbol type. */
722
723 typedef enum st {
724 st_Nil = stNil, /* Nuthin' special */
725 st_Global = stGlobal, /* external symbol */
726 st_Static = stStatic, /* static */
727 st_Param = stParam, /* procedure argument */
728 st_Local = stLocal, /* local variable */
729 st_Label = stLabel, /* label */
730 st_Proc = stProc, /* " " Procedure */
731 st_Block = stBlock, /* beginning of block */
732 st_End = stEnd, /* end (of anything) */
733 st_Member = stMember, /* member (of anything - struct/union/enum */
734 st_Typedef = stTypedef, /* type definition */
735 st_File = stFile, /* file name */
736 st_RegReloc = stRegReloc, /* register relocation */
737 st_Forward = stForward, /* forwarding address */
738 st_StaticProc = stStaticProc, /* load time only static procs */
739 st_Constant = stConstant, /* const */
740 st_Str = stStr, /* string */
741 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
742 st_Expr = stExpr, /* 2+2 vs. 4 */
743 st_Type = stType, /* post-coercion SER */
744 st_Max = stMax /* max type+1 */
745 } st_t;
746
747 /* Redefinition of type qualifiers. */
748
749 typedef enum tq {
750 tq_Nil = tqNil, /* bt is what you see */
751 tq_Ptr = tqPtr, /* pointer */
752 tq_Proc = tqProc, /* procedure */
753 tq_Array = tqArray, /* duh */
754 tq_Far = tqFar, /* longer addressing - 8086/8 land */
755 tq_Vol = tqVol, /* volatile */
756 tq_Max = tqMax /* Max type qualifier+1 */
757 } tq_t;
758
759 /* Redefinition of basic types. */
760
761 typedef enum bt {
762 bt_Nil = btNil, /* undefined */
763 bt_Adr = btAdr, /* address - integer same size as pointer */
764 bt_Char = btChar, /* character */
765 bt_UChar = btUChar, /* unsigned character */
766 bt_Short = btShort, /* short */
767 bt_UShort = btUShort, /* unsigned short */
768 bt_Int = btInt, /* int */
769 bt_UInt = btUInt, /* unsigned int */
770 bt_Long = btLong, /* long */
771 bt_ULong = btULong, /* unsigned long */
772 bt_Float = btFloat, /* float (real) */
773 bt_Double = btDouble, /* Double (real) */
774 bt_Struct = btStruct, /* Structure (Record) */
775 bt_Union = btUnion, /* Union (variant) */
776 bt_Enum = btEnum, /* Enumerated */
777 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
778 bt_Range = btRange, /* subrange of int */
779 bt_Set = btSet, /* pascal sets */
780 bt_Complex = btComplex, /* fortran complex */
781 bt_DComplex = btDComplex, /* fortran double complex */
782 bt_Indirect = btIndirect, /* forward or unnamed typedef */
783 bt_FixedDec = btFixedDec, /* Fixed Decimal */
784 bt_FloatDec = btFloatDec, /* Float Decimal */
785 bt_String = btString, /* Varying Length Character String */
786 bt_Bit = btBit, /* Aligned Bit String */
787 bt_Picture = btPicture, /* Picture */
788
789 #ifdef btVoid
790 bt_Void = btVoid, /* Void */
791 #else
792 #define bt_Void bt_Nil
793 #endif
794
795 bt_Max = btMax /* Max basic type+1 */
796 } bt_t;
797
798 \f
799
800 /* Basic COFF storage classes. */
801 enum coff_storage {
802 C_EFCN = -1,
803 C_NULL = 0,
804 C_AUTO = 1,
805 C_EXT = 2,
806 C_STAT = 3,
807 C_REG = 4,
808 C_EXTDEF = 5,
809 C_LABEL = 6,
810 C_ULABEL = 7,
811 C_MOS = 8,
812 C_ARG = 9,
813 C_STRTAG = 10,
814 C_MOU = 11,
815 C_UNTAG = 12,
816 C_TPDEF = 13,
817 C_USTATIC = 14,
818 C_ENTAG = 15,
819 C_MOE = 16,
820 C_REGPARM = 17,
821 C_FIELD = 18,
822 C_BLOCK = 100,
823 C_FCN = 101,
824 C_EOS = 102,
825 C_FILE = 103,
826 C_LINE = 104,
827 C_ALIAS = 105,
828 C_HIDDEN = 106,
829 C_MAX = 107
830 } coff_storage_t;
831
832 /* Regular COFF fundamental type. */
833 typedef enum coff_type {
834 T_NULL = 0,
835 T_ARG = 1,
836 T_CHAR = 2,
837 T_SHORT = 3,
838 T_INT = 4,
839 T_LONG = 5,
840 T_FLOAT = 6,
841 T_DOUBLE = 7,
842 T_STRUCT = 8,
843 T_UNION = 9,
844 T_ENUM = 10,
845 T_MOE = 11,
846 T_UCHAR = 12,
847 T_USHORT = 13,
848 T_UINT = 14,
849 T_ULONG = 15,
850 T_MAX = 16
851 } coff_type_t;
852
853 /* Regular COFF derived types. */
854 typedef enum coff_dt {
855 DT_NON = 0,
856 DT_PTR = 1,
857 DT_FCN = 2,
858 DT_ARY = 3,
859 DT_MAX = 4
860 } coff_dt_t;
861
862 #define N_BTMASK 017 /* bitmask to isolate basic type */
863 #define N_TMASK 003 /* bitmask to isolate derived type */
864 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
865 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
866 #define N_TQ 6 /* # of type qualifiers */
867
868 /* States for whether to hash type or not. */
869 typedef enum hash_state {
870 hash_no = 0, /* don't hash type */
871 hash_yes = 1, /* ok to hash type, or use previous hash */
872 hash_record = 2 /* ok to record hash, but don't use prev. */
873 } hash_state_t;
874
875
876 /* Types of different sized allocation requests. */
877 enum alloc_type {
878 alloc_type_none, /* dummy value */
879 alloc_type_scope, /* nested scopes linked list */
880 alloc_type_vlinks, /* glue linking pages in varray */
881 alloc_type_shash, /* string hash element */
882 alloc_type_thash, /* type hash element */
883 alloc_type_tag, /* struct/union/tag element */
884 alloc_type_forward, /* element to hold unknown tag */
885 alloc_type_thead, /* head of type hash list */
886 alloc_type_varray, /* general varray allocation */
887 alloc_type_last /* last+1 element for array bounds */
888 };
889
890 \f
891 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
892 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
893
894
895 /* Structures to provide n-number of virtual arrays, each of which can
896 grow linearly, and which are written in the object file as sequential
897 pages. On systems with a BSD malloc that define USE_MALLOC, the
898 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
899 adds its overhead, and rounds up to the next power of 2. Pages are
900 linked together via a linked list. */
901
902 #ifndef PAGE_SIZE
903 #define PAGE_SIZE 32768 /* size of varray pages */
904 #endif
905
906 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
907
908
909 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
910 #ifndef USE_MALLOC /* in one memory request */
911 #define MAX_CLUSTER_PAGES 64
912 #else
913 #define MAX_CLUSTER_PAGES 63
914 #endif
915 #endif
916
917
918 /* Linked list connecting separate page allocations. */
919 typedef struct vlinks {
920 struct vlinks *prev; /* previous set of pages */
921 struct vlinks *next; /* next set of pages */
922 union page *datum; /* start of page */
923 unsigned long start_index; /* starting index # of page */
924 } vlinks_t;
925
926
927 /* Virtual array header. */
928 typedef struct varray {
929 vlinks_t *first; /* first page link */
930 vlinks_t *last; /* last page link */
931 unsigned long num_allocated; /* # objects allocated */
932 unsigned short object_size; /* size in bytes of each object */
933 unsigned short objects_per_page; /* # objects that can fit on a page */
934 unsigned short objects_last_page; /* # objects allocated on last page */
935 } varray_t;
936
937 #ifndef MALLOC_CHECK
938 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
939 #else
940 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
941 #endif
942
943 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
944 (vlinks_t *) 0, /* first */ \
945 (vlinks_t *) 0, /* last */ \
946 0, /* num_allocated */ \
947 sizeof (type), /* object_size */ \
948 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
949 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
950 }
951
952 #define INITIALIZE_VARRAY(x,type) \
953 do { \
954 (x)->object_size = sizeof (type); \
955 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
956 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
957 } while (0)
958
959 /* Master type for indexes within the symbol table. */
960 typedef unsigned long symint_t;
961
962
963 /* Linked list support for nested scopes (file, block, structure, etc.). */
964 typedef struct scope {
965 struct scope *prev; /* previous scope level */
966 struct scope *free; /* free list pointer */
967 SYMR *lsym; /* pointer to local symbol node */
968 symint_t lnumber; /* lsym index */
969 st_t type; /* type of the node */
970 } scope_t;
971
972
973 /* Forward reference list for tags referenced, but not yet defined. */
974 typedef struct forward {
975 struct forward *next; /* next forward reference */
976 struct forward *free; /* free list pointer */
977 AUXU *ifd_ptr; /* pointer to store file index */
978 AUXU *index_ptr; /* pointer to store symbol index */
979 AUXU *type_ptr; /* pointer to munge type info */
980 } forward_t;
981
982
983 /* Linked list support for tags. The first tag in the list is always
984 the current tag for that block. */
985 typedef struct tag {
986 struct tag *free; /* free list pointer */
987 struct shash *hash_ptr; /* pointer to the hash table head */
988 struct tag *same_name; /* tag with same name in outer scope */
989 struct tag *same_block; /* next tag defined in the same block. */
990 struct forward *forward_ref; /* list of forward references */
991 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
992 symint_t ifd; /* file # tag defined in */
993 symint_t indx; /* index within file's local symbols */
994 } tag_t;
995
996
997 /* Head of a block's linked list of tags. */
998 typedef struct thead {
999 struct thead *prev; /* previous block */
1000 struct thead *free; /* free list pointer */
1001 struct tag *first_tag; /* first tag in block defined */
1002 } thead_t;
1003
1004
1005 /* Union containing pointers to each the small structures which are freed up. */
1006 typedef union small_free {
1007 scope_t *f_scope; /* scope structure */
1008 thead_t *f_thead; /* tag head structure */
1009 tag_t *f_tag; /* tag element structure */
1010 forward_t *f_forward; /* forward tag reference */
1011 } small_free_t;
1012
1013
1014 /* String hash table support. The size of the hash table must fit
1015 within a page. */
1016
1017 #ifndef SHASH_SIZE
1018 #define SHASH_SIZE 1009
1019 #endif
1020
1021 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1022
1023 typedef struct shash {
1024 struct shash *next; /* next hash value */
1025 char *string; /* string we are hashing */
1026 symint_t len; /* string length */
1027 symint_t indx; /* index within string table */
1028 EXTR *esym_ptr; /* global symbol pointer */
1029 SYMR *sym_ptr; /* local symbol pointer */
1030 SYMR *end_ptr; /* symbol pointer to end block */
1031 tag_t *tag_ptr; /* tag pointer */
1032 PDR *proc_ptr; /* procedure descriptor pointer */
1033 } shash_t;
1034
1035
1036 /* Type hash table support. The size of the hash table must fit
1037 within a page with the other extended file descriptor information.
1038 Because unique types which are hashed are fewer in number than
1039 strings, we use a smaller hash value. */
1040
1041 #ifndef THASH_SIZE
1042 #define THASH_SIZE 113
1043 #endif
1044
1045 typedef struct thash {
1046 struct thash *next; /* next hash value */
1047 AUXU type; /* type we are hashing */
1048 symint_t indx; /* index within string table */
1049 } thash_t;
1050
1051
1052 /* Extended file descriptor that contains all of the support necessary
1053 to add things to each file separately. */
1054 typedef struct efdr {
1055 FDR fdr; /* File header to be written out */
1056 FDR *orig_fdr; /* original file header */
1057 char *name; /* filename */
1058 int name_len; /* length of the filename */
1059 symint_t void_type; /* aux. pointer to 'void' type */
1060 symint_t int_type; /* aux. pointer to 'int' type */
1061 scope_t *cur_scope; /* current nested scopes */
1062 symint_t file_index; /* current file number */
1063 int nested_scopes; /* # nested scopes */
1064 varray_t strings; /* local strings */
1065 varray_t symbols; /* local symbols */
1066 varray_t procs; /* procedures */
1067 varray_t aux_syms; /* auxiliary symbols */
1068 struct efdr *next_file; /* next file descriptor */
1069 /* string/type hash tables */
1070 shash_t **shash_head; /* string hash table */
1071 thash_t *thash_head[THASH_SIZE];
1072 } efdr_t;
1073
1074 /* Pre-initialized extended file structure. */
1075 static int init_file_initialized = 0;
1076 static efdr_t init_file;
1077
1078 static efdr_t *first_file; /* first file descriptor */
1079 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1080
1081
1082 /* Union of various things that are held in pages. */
1083 typedef union page {
1084 char byte [ PAGE_SIZE ];
1085 unsigned char ubyte [ PAGE_SIZE ];
1086 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1087 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1088 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1089 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1090 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1091 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1092 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1093 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1094 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1095 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1096 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1097 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1098 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1099 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1100 } page_t;
1101
1102
1103 /* Structure holding allocation information for small sized structures. */
1104 typedef struct alloc_info {
1105 const char *alloc_name; /* name of this allocation type (must be first) */
1106 page_t *cur_page; /* current page being allocated from */
1107 small_free_t free_list; /* current free list if any */
1108 int unallocated; /* number of elements unallocated on page */
1109 int total_alloc; /* total number of allocations */
1110 int total_free; /* total number of frees */
1111 int total_pages; /* total number of pages allocated */
1112 } alloc_info_t;
1113
1114 /* Type information collected together. */
1115 typedef struct type_info {
1116 bt_t basic_type; /* basic type */
1117 coff_type_t orig_type; /* original COFF-based type */
1118 int num_tq; /* # type qualifiers */
1119 int num_dims; /* # dimensions */
1120 int num_sizes; /* # sizes */
1121 int extra_sizes; /* # extra sizes not tied with dims */
1122 tag_t * tag_ptr; /* tag pointer */
1123 int bitfield; /* symbol is a bitfield */
1124 int unknown_tag; /* this is an unknown tag */
1125 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1126 symint_t dimensions [N_TQ]; /* dimensions for each array */
1127 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1128 struct/union/enum + bitfield size */
1129 } type_info_t;
1130
1131 /* Pre-initialized type_info struct. */
1132 static type_info_t type_info_init = {
1133 bt_Nil, /* basic type */
1134 T_NULL, /* original COFF-based type */
1135 0, /* # type qualifiers */
1136 0, /* # dimensions */
1137 0, /* # sizes */
1138 0, /* sizes not tied with dims */
1139 NULL, /* ptr to tag */
1140 0, /* bitfield */
1141 0, /* unknown tag */
1142 { /* type qualifiers */
1143 tq_Nil,
1144 tq_Nil,
1145 tq_Nil,
1146 tq_Nil,
1147 tq_Nil,
1148 tq_Nil,
1149 },
1150 { /* dimensions */
1151 0,
1152 0,
1153 0,
1154 0,
1155 0,
1156 0
1157 },
1158 { /* sizes */
1159 0,
1160 0,
1161 0,
1162 0,
1163 0,
1164 0,
1165 0,
1166 0,
1167 },
1168 };
1169
1170
1171 /* Global virtual arrays & hash table for external strings as well as
1172 for the tags table and global tables for file descriptors, and
1173 dense numbers. */
1174
1175 static varray_t file_desc = INIT_VARRAY (efdr_t);
1176 static varray_t dense_num = INIT_VARRAY (DNR);
1177 static varray_t tag_strings = INIT_VARRAY (char);
1178 static varray_t ext_strings = INIT_VARRAY (char);
1179 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1180
1181 static shash_t *orig_str_hash[SHASH_SIZE];
1182 static shash_t *ext_str_hash [SHASH_SIZE];
1183 static shash_t *tag_hash [SHASH_SIZE];
1184
1185 /* Static types for int and void. Also, remember the last function's
1186 type (which is set up when we encounter the declaration for the
1187 function, and used when the end block for the function is emitted. */
1188
1189 static type_info_t int_type_info;
1190 static type_info_t void_type_info;
1191 static type_info_t last_func_type_info;
1192 static EXTR *last_func_eptr;
1193
1194
1195 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1196 really should use bt_Void, but this causes the current ecoff GDB to
1197 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1198 2.0) doesn't understand it, even though the compiler generates it.
1199 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1200 suite, but for now go with what works. */
1201
1202 static const bt_t map_coff_types[ (int) T_MAX ] = {
1203 bt_Nil, /* T_NULL */
1204 bt_Nil, /* T_ARG */
1205 bt_Char, /* T_CHAR */
1206 bt_Short, /* T_SHORT */
1207 bt_Int, /* T_INT */
1208 bt_Long, /* T_LONG */
1209 bt_Float, /* T_FLOAT */
1210 bt_Double, /* T_DOUBLE */
1211 bt_Struct, /* T_STRUCT */
1212 bt_Union, /* T_UNION */
1213 bt_Enum, /* T_ENUM */
1214 bt_Enum, /* T_MOE */
1215 bt_UChar, /* T_UCHAR */
1216 bt_UShort, /* T_USHORT */
1217 bt_UInt, /* T_UINT */
1218 bt_ULong /* T_ULONG */
1219 };
1220
1221 /* Convert COFF storage class to ECOFF storage class. */
1222 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1223 sc_Nil, /* 0: C_NULL */
1224 sc_Abs, /* 1: C_AUTO auto var */
1225 sc_Undefined, /* 2: C_EXT external */
1226 sc_Data, /* 3: C_STAT static */
1227 sc_Register, /* 4: C_REG register */
1228 sc_Undefined, /* 5: C_EXTDEF ??? */
1229 sc_Text, /* 6: C_LABEL label */
1230 sc_Text, /* 7: C_ULABEL user label */
1231 sc_Info, /* 8: C_MOS member of struct */
1232 sc_Abs, /* 9: C_ARG argument */
1233 sc_Info, /* 10: C_STRTAG struct tag */
1234 sc_Info, /* 11: C_MOU member of union */
1235 sc_Info, /* 12: C_UNTAG union tag */
1236 sc_Info, /* 13: C_TPDEF typedef */
1237 sc_Data, /* 14: C_USTATIC ??? */
1238 sc_Info, /* 15: C_ENTAG enum tag */
1239 sc_Info, /* 16: C_MOE member of enum */
1240 sc_Register, /* 17: C_REGPARM register parameter */
1241 sc_Bits, /* 18; C_FIELD bitfield */
1242 sc_Nil, /* 19 */
1243 sc_Nil, /* 20 */
1244 sc_Nil, /* 21 */
1245 sc_Nil, /* 22 */
1246 sc_Nil, /* 23 */
1247 sc_Nil, /* 24 */
1248 sc_Nil, /* 25 */
1249 sc_Nil, /* 26 */
1250 sc_Nil, /* 27 */
1251 sc_Nil, /* 28 */
1252 sc_Nil, /* 29 */
1253 sc_Nil, /* 30 */
1254 sc_Nil, /* 31 */
1255 sc_Nil, /* 32 */
1256 sc_Nil, /* 33 */
1257 sc_Nil, /* 34 */
1258 sc_Nil, /* 35 */
1259 sc_Nil, /* 36 */
1260 sc_Nil, /* 37 */
1261 sc_Nil, /* 38 */
1262 sc_Nil, /* 39 */
1263 sc_Nil, /* 40 */
1264 sc_Nil, /* 41 */
1265 sc_Nil, /* 42 */
1266 sc_Nil, /* 43 */
1267 sc_Nil, /* 44 */
1268 sc_Nil, /* 45 */
1269 sc_Nil, /* 46 */
1270 sc_Nil, /* 47 */
1271 sc_Nil, /* 48 */
1272 sc_Nil, /* 49 */
1273 sc_Nil, /* 50 */
1274 sc_Nil, /* 51 */
1275 sc_Nil, /* 52 */
1276 sc_Nil, /* 53 */
1277 sc_Nil, /* 54 */
1278 sc_Nil, /* 55 */
1279 sc_Nil, /* 56 */
1280 sc_Nil, /* 57 */
1281 sc_Nil, /* 58 */
1282 sc_Nil, /* 59 */
1283 sc_Nil, /* 60 */
1284 sc_Nil, /* 61 */
1285 sc_Nil, /* 62 */
1286 sc_Nil, /* 63 */
1287 sc_Nil, /* 64 */
1288 sc_Nil, /* 65 */
1289 sc_Nil, /* 66 */
1290 sc_Nil, /* 67 */
1291 sc_Nil, /* 68 */
1292 sc_Nil, /* 69 */
1293 sc_Nil, /* 70 */
1294 sc_Nil, /* 71 */
1295 sc_Nil, /* 72 */
1296 sc_Nil, /* 73 */
1297 sc_Nil, /* 74 */
1298 sc_Nil, /* 75 */
1299 sc_Nil, /* 76 */
1300 sc_Nil, /* 77 */
1301 sc_Nil, /* 78 */
1302 sc_Nil, /* 79 */
1303 sc_Nil, /* 80 */
1304 sc_Nil, /* 81 */
1305 sc_Nil, /* 82 */
1306 sc_Nil, /* 83 */
1307 sc_Nil, /* 84 */
1308 sc_Nil, /* 85 */
1309 sc_Nil, /* 86 */
1310 sc_Nil, /* 87 */
1311 sc_Nil, /* 88 */
1312 sc_Nil, /* 89 */
1313 sc_Nil, /* 90 */
1314 sc_Nil, /* 91 */
1315 sc_Nil, /* 92 */
1316 sc_Nil, /* 93 */
1317 sc_Nil, /* 94 */
1318 sc_Nil, /* 95 */
1319 sc_Nil, /* 96 */
1320 sc_Nil, /* 97 */
1321 sc_Nil, /* 98 */
1322 sc_Nil, /* 99 */
1323 sc_Text, /* 100: C_BLOCK block start/end */
1324 sc_Text, /* 101: C_FCN function start/end */
1325 sc_Info, /* 102: C_EOS end of struct/union/enum */
1326 sc_Nil, /* 103: C_FILE file start */
1327 sc_Nil, /* 104: C_LINE line number */
1328 sc_Nil, /* 105: C_ALIAS combined type info */
1329 sc_Nil, /* 106: C_HIDDEN ??? */
1330 };
1331
1332 /* Convert COFF storage class to ECOFF symbol type. */
1333 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1334 st_Nil, /* 0: C_NULL */
1335 st_Local, /* 1: C_AUTO auto var */
1336 st_Global, /* 2: C_EXT external */
1337 st_Static, /* 3: C_STAT static */
1338 st_Local, /* 4: C_REG register */
1339 st_Global, /* 5: C_EXTDEF ??? */
1340 st_Label, /* 6: C_LABEL label */
1341 st_Label, /* 7: C_ULABEL user label */
1342 st_Member, /* 8: C_MOS member of struct */
1343 st_Param, /* 9: C_ARG argument */
1344 st_Block, /* 10: C_STRTAG struct tag */
1345 st_Member, /* 11: C_MOU member of union */
1346 st_Block, /* 12: C_UNTAG union tag */
1347 st_Typedef, /* 13: C_TPDEF typedef */
1348 st_Static, /* 14: C_USTATIC ??? */
1349 st_Block, /* 15: C_ENTAG enum tag */
1350 st_Member, /* 16: C_MOE member of enum */
1351 st_Param, /* 17: C_REGPARM register parameter */
1352 st_Member, /* 18; C_FIELD bitfield */
1353 st_Nil, /* 19 */
1354 st_Nil, /* 20 */
1355 st_Nil, /* 21 */
1356 st_Nil, /* 22 */
1357 st_Nil, /* 23 */
1358 st_Nil, /* 24 */
1359 st_Nil, /* 25 */
1360 st_Nil, /* 26 */
1361 st_Nil, /* 27 */
1362 st_Nil, /* 28 */
1363 st_Nil, /* 29 */
1364 st_Nil, /* 30 */
1365 st_Nil, /* 31 */
1366 st_Nil, /* 32 */
1367 st_Nil, /* 33 */
1368 st_Nil, /* 34 */
1369 st_Nil, /* 35 */
1370 st_Nil, /* 36 */
1371 st_Nil, /* 37 */
1372 st_Nil, /* 38 */
1373 st_Nil, /* 39 */
1374 st_Nil, /* 40 */
1375 st_Nil, /* 41 */
1376 st_Nil, /* 42 */
1377 st_Nil, /* 43 */
1378 st_Nil, /* 44 */
1379 st_Nil, /* 45 */
1380 st_Nil, /* 46 */
1381 st_Nil, /* 47 */
1382 st_Nil, /* 48 */
1383 st_Nil, /* 49 */
1384 st_Nil, /* 50 */
1385 st_Nil, /* 51 */
1386 st_Nil, /* 52 */
1387 st_Nil, /* 53 */
1388 st_Nil, /* 54 */
1389 st_Nil, /* 55 */
1390 st_Nil, /* 56 */
1391 st_Nil, /* 57 */
1392 st_Nil, /* 58 */
1393 st_Nil, /* 59 */
1394 st_Nil, /* 60 */
1395 st_Nil, /* 61 */
1396 st_Nil, /* 62 */
1397 st_Nil, /* 63 */
1398 st_Nil, /* 64 */
1399 st_Nil, /* 65 */
1400 st_Nil, /* 66 */
1401 st_Nil, /* 67 */
1402 st_Nil, /* 68 */
1403 st_Nil, /* 69 */
1404 st_Nil, /* 70 */
1405 st_Nil, /* 71 */
1406 st_Nil, /* 72 */
1407 st_Nil, /* 73 */
1408 st_Nil, /* 74 */
1409 st_Nil, /* 75 */
1410 st_Nil, /* 76 */
1411 st_Nil, /* 77 */
1412 st_Nil, /* 78 */
1413 st_Nil, /* 79 */
1414 st_Nil, /* 80 */
1415 st_Nil, /* 81 */
1416 st_Nil, /* 82 */
1417 st_Nil, /* 83 */
1418 st_Nil, /* 84 */
1419 st_Nil, /* 85 */
1420 st_Nil, /* 86 */
1421 st_Nil, /* 87 */
1422 st_Nil, /* 88 */
1423 st_Nil, /* 89 */
1424 st_Nil, /* 90 */
1425 st_Nil, /* 91 */
1426 st_Nil, /* 92 */
1427 st_Nil, /* 93 */
1428 st_Nil, /* 94 */
1429 st_Nil, /* 95 */
1430 st_Nil, /* 96 */
1431 st_Nil, /* 97 */
1432 st_Nil, /* 98 */
1433 st_Nil, /* 99 */
1434 st_Block, /* 100: C_BLOCK block start/end */
1435 st_Proc, /* 101: C_FCN function start/end */
1436 st_End, /* 102: C_EOS end of struct/union/enum */
1437 st_File, /* 103: C_FILE file start */
1438 st_Nil, /* 104: C_LINE line number */
1439 st_Nil, /* 105: C_ALIAS combined type info */
1440 st_Nil, /* 106: C_HIDDEN ??? */
1441 };
1442
1443 /* Map COFF derived types to ECOFF type qualifiers. */
1444 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1445 tq_Nil, /* 0: DT_NON no more qualifiers */
1446 tq_Ptr, /* 1: DT_PTR pointer */
1447 tq_Proc, /* 2: DT_FCN function */
1448 tq_Array, /* 3: DT_ARY array */
1449 };
1450
1451
1452 /* Keep track of different sized allocation requests. */
1453 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1454
1455 \f
1456 /* Pointers and such to the original symbol table that is read in. */
1457 static struct filehdr orig_file_header; /* global object file header */
1458
1459 static HDRR orig_sym_hdr; /* symbolic header on input */
1460 static char *orig_linenum; /* line numbers */
1461 static DNR *orig_dense; /* dense numbers */
1462 static PDR *orig_procs; /* procedures */
1463 static SYMR *orig_local_syms; /* local symbols */
1464 static OPTR *orig_opt_syms; /* optimization symbols */
1465 static AUXU *orig_aux_syms; /* auxiliary symbols */
1466 static char *orig_local_strs; /* local strings */
1467 static char *orig_ext_strs; /* external strings */
1468 static FDR *orig_files; /* file descriptors */
1469 static symint_t *orig_rfds; /* relative file desc's */
1470 static EXTR *orig_ext_syms; /* external symbols */
1471
1472 /* Macros to convert an index into a given object within the original
1473 symbol table. */
1474 #define CHECK(num,max,str) \
1475 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1476
1477 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1478 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1479 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1480 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1481 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1482 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1483 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1484 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1485 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1486 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1487 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1488
1489 /* Various other statics. */
1490 static HDRR symbolic_header; /* symbolic header */
1491 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1492 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1493 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1494 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1495 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1496 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1497 static unsigned long file_offset = 0; /* current file offset */
1498 static unsigned long max_file_offset = 0; /* maximum file offset */
1499 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1500 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1501 static char *progname = (char *) 0; /* program name for errors */
1502 static const char *input_name = "stdin"; /* name of input file */
1503 static char *object_name = (char *) 0; /* tmp. name of object file */
1504 static char *obj_in_name = (char *) 0; /* name of input object file */
1505 static char *cur_line_start = (char *) 0; /* current line read in */
1506 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1507 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1508 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1509 static long line_number = 0; /* current input line number */
1510 static int debug = 0; /* trace functions */
1511 static int version = 0; /* print version # */
1512 static int verbose = 0;
1513 static int had_errors = 0; /* != 0 if errors were found */
1514 static int rename_output = 0; /* != 0 if rename output file*/
1515 static int delete_input = 0; /* != 0 if delete input after done */
1516 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1517
1518
1519 /* Pseudo symbol to use when putting stabs into the symbol table. */
1520 #ifndef STABS_SYMBOL
1521 #define STABS_SYMBOL "@stabs"
1522 #endif
1523
1524 static const char stabs_symbol[] = STABS_SYMBOL;
1525
1526 \f
1527 /* Forward reference for functions. See the definition for more details. */
1528
1529 #ifndef STATIC
1530 #define STATIC static
1531 #endif
1532
1533 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1534 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1535 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1536 shash_t **);
1537 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1538 symint_t, symint_t);
1539 STATIC symint_t add_ext_symbol (EXTR *, int);
1540 STATIC symint_t add_aux_sym_symint (symint_t);
1541 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1542 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1543 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1544 STATIC void add_unknown_tag (tag_t *);
1545 STATIC void add_procedure (const char *, const char *);
1546 STATIC void initialize_init_file (void);
1547 STATIC void add_file (const char *, const char *);
1548 STATIC void add_bytes (varray_t *, char *, Size_t);
1549 STATIC void add_varray_page (varray_t *);
1550 STATIC void update_headers (void);
1551 STATIC void write_varray (varray_t *, off_t, const char *);
1552 STATIC void write_object (void);
1553 STATIC const char *st_to_string (st_t);
1554 STATIC const char *sc_to_string (sc_t);
1555 STATIC char *read_line (void);
1556 STATIC void parse_input (void);
1557 STATIC void mark_stabs (const char *);
1558 STATIC void parse_begin (const char *);
1559 STATIC void parse_bend (const char *);
1560 STATIC void parse_def (const char *);
1561 STATIC void parse_end (const char *);
1562 STATIC void parse_ent (const char *);
1563 STATIC void parse_file (const char *);
1564 STATIC void parse_stabs_common (const char *, const char *, const char *);
1565 STATIC void parse_stabs (const char *);
1566 STATIC void parse_stabn (const char *);
1567 STATIC page_t *read_seek (Size_t, off_t, const char *);
1568 STATIC void copy_object (void);
1569
1570 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1571 STATIC page_t *allocate_page (void);
1572 STATIC page_t *allocate_multiple_pages (Size_t);
1573 STATIC void free_multiple_pages (page_t *, Size_t);
1574
1575 #ifndef MALLOC_CHECK
1576 STATIC page_t *allocate_cluster (Size_t);
1577 #endif
1578
1579 STATIC forward_t *allocate_forward (void);
1580 STATIC scope_t *allocate_scope (void);
1581 STATIC shash_t *allocate_shash (void);
1582 STATIC tag_t *allocate_tag (void);
1583 STATIC thash_t *allocate_thash (void);
1584 STATIC thead_t *allocate_thead (void);
1585 STATIC vlinks_t *allocate_vlinks (void);
1586
1587 STATIC void free_forward (forward_t *);
1588 STATIC void free_scope (scope_t *);
1589 STATIC void free_tag (tag_t *);
1590 STATIC void free_thead (thead_t *);
1591
1592 extern char *optarg;
1593 extern int optind;
1594 extern int opterr;
1595 \f
1596 /* List of assembler pseudo ops and beginning sequences that need
1597 special actions. Someday, this should be a hash table, and such,
1598 but for now a linear list of names and calls to memcmp will
1599 do...... */
1600
1601 typedef struct _pseudo_ops {
1602 const char *const name; /* pseudo-op in ascii */
1603 const int len; /* length of name to compare */
1604 void (*const func) (const char *); /* function to handle line */
1605 } pseudo_ops_t;
1606
1607 static const pseudo_ops_t pseudo_ops[] = {
1608 { "#.def", sizeof("#.def")-1, parse_def },
1609 { "#.begin", sizeof("#.begin")-1, parse_begin },
1610 { "#.bend", sizeof("#.bend")-1, parse_bend },
1611 { ".end", sizeof(".end")-1, parse_end },
1612 { ".ent", sizeof(".ent")-1, parse_ent },
1613 { ".file", sizeof(".file")-1, parse_file },
1614 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1615 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1616 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1617 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1618 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1619 };
1620
1621 \f
1622 /* Command line options for getopt_long. */
1623
1624 static const struct option options[] =
1625 {
1626 { "version", 0, 0, 'V' },
1627 { "verbose", 0, 0, 'v' },
1628 { 0, 0, 0, 0 }
1629 };
1630 \f
1631 /* Add a page to a varray object. */
1632
1633 STATIC void
1634 add_varray_page (varray_t *vp)
1635 {
1636 vlinks_t *new_links = allocate_vlinks ();
1637
1638 #ifdef MALLOC_CHECK
1639 if (vp->object_size > 1)
1640 new_links->datum = xcalloc (1, vp->object_size);
1641 else
1642 #endif
1643 new_links->datum = allocate_page ();
1644
1645 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1646 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1647
1648 new_links->start_index = vp->num_allocated;
1649 vp->objects_last_page = 0;
1650
1651 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1652 vp->first = vp->last = new_links;
1653 else
1654 { /* 2nd or greater allocation */
1655 new_links->prev = vp->last;
1656 vp->last->next = new_links;
1657 vp->last = new_links;
1658 }
1659 }
1660
1661 \f
1662 /* Compute hash code (from tree.c) */
1663
1664 #define HASHBITS 30
1665
1666 STATIC shash_t *
1667 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1668 symint_t *ret_hash_index)
1669 {
1670 unsigned long hi;
1671 Ptrdiff_t i;
1672 shash_t *ptr;
1673 int first_ch = *text;
1674
1675 hi = hash_len;
1676 for (i = 0; i < hash_len; i++)
1677 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1678
1679 hi &= (1 << HASHBITS) - 1;
1680 hi %= SHASH_SIZE;
1681
1682 if (ret_hash_index != (symint_t *) 0)
1683 *ret_hash_index = hi;
1684
1685 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1686 if ((symint_t) hash_len == ptr->len
1687 && first_ch == ptr->string[0]
1688 && memcmp (text, ptr->string, hash_len) == 0)
1689 break;
1690
1691 return ptr;
1692 }
1693
1694 \f
1695 /* Add a string (and null pad) to one of the string tables. A
1696 consequence of hashing strings, is that we don't let strings cross
1697 page boundaries. The extra nulls will be ignored. VP is a string
1698 virtual array, HASH_TBL a pointer to the hash table, the string
1699 starts at START and the position one byte after the string is given
1700 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1701
1702 STATIC symint_t
1703 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1704 const char *end_p1, shash_t **ret_hash)
1705 {
1706 Ptrdiff_t len = end_p1 - start;
1707 shash_t *hash_ptr;
1708 symint_t hi;
1709
1710 if (len >= (Ptrdiff_t) PAGE_USIZE)
1711 fatal ("string too big (%ld bytes)", (long) len);
1712
1713 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1714 if (hash_ptr == (shash_t *) 0)
1715 {
1716 char *p;
1717
1718 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1719 {
1720 vp->num_allocated
1721 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1722 add_varray_page (vp);
1723 }
1724
1725 hash_ptr = allocate_shash ();
1726 hash_ptr->next = hash_tbl[hi];
1727 hash_tbl[hi] = hash_ptr;
1728
1729 hash_ptr->len = len;
1730 hash_ptr->indx = vp->num_allocated;
1731 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1732
1733 vp->objects_last_page += len+1;
1734 vp->num_allocated += len+1;
1735
1736 while (len-- > 0)
1737 *p++ = *start++;
1738
1739 *p = '\0';
1740 }
1741
1742 if (ret_hash != (shash_t **) 0)
1743 *ret_hash = hash_ptr;
1744
1745 return hash_ptr->indx;
1746 }
1747
1748 \f
1749 /* Add a local symbol. The symbol string starts at STR_START and the
1750 first byte after it is makred by STR_END_P1. The symbol has type
1751 TYPE and storage class STORAGE and value VALUE. INDX is an index
1752 to local/aux. symbols. */
1753
1754 STATIC symint_t
1755 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1756 sc_t storage, symint_t value, symint_t indx)
1757 {
1758 symint_t ret;
1759 SYMR *psym;
1760 scope_t *pscope;
1761 thead_t *ptag_head;
1762 tag_t *ptag;
1763 tag_t *ptag_next;
1764 varray_t *vp = &cur_file_ptr->symbols;
1765 int scope_delta = 0;
1766 shash_t *hash_ptr = (shash_t *) 0;
1767
1768 if (vp->objects_last_page == vp->objects_per_page)
1769 add_varray_page (vp);
1770
1771 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1772
1773 psym->value = value;
1774 psym->st = (unsigned) type;
1775 psym->sc = (unsigned) storage;
1776 psym->index = indx;
1777 psym->iss = (str_start == (const char *) 0)
1778 ? 0
1779 : add_string (&cur_file_ptr->strings,
1780 &cur_file_ptr->shash_head[0],
1781 str_start,
1782 str_end_p1,
1783 &hash_ptr);
1784
1785 ret = vp->num_allocated++;
1786
1787 if (MIPS_IS_STAB (psym))
1788 return ret;
1789
1790 /* Save the symbol within the hash table if this is a static
1791 item, and it has a name. */
1792 if (hash_ptr != (shash_t *) 0
1793 && (type == st_Global || type == st_Static || type == st_Label
1794 || type == st_Proc || type == st_StaticProc))
1795 hash_ptr->sym_ptr = psym;
1796
1797 /* push or pop a scope if appropriate. */
1798 switch (type)
1799 {
1800 default:
1801 break;
1802
1803 case st_File: /* beginning of file */
1804 case st_Proc: /* procedure */
1805 case st_StaticProc: /* static procedure */
1806 case st_Block: /* begin scope */
1807 pscope = allocate_scope ();
1808 pscope->prev = cur_file_ptr->cur_scope;
1809 pscope->lsym = psym;
1810 pscope->lnumber = ret;
1811 pscope->type = type;
1812 cur_file_ptr->cur_scope = pscope;
1813
1814 if (type != st_File)
1815 scope_delta = 1;
1816
1817 /* For every block type except file, struct, union, or
1818 enumeration blocks, push a level on the tag stack. We omit
1819 file types, so that tags can span file boundaries. */
1820 if (type != st_File && storage != sc_Info)
1821 {
1822 ptag_head = allocate_thead ();
1823 ptag_head->first_tag = 0;
1824 ptag_head->prev = cur_tag_head;
1825 cur_tag_head = ptag_head;
1826 }
1827 break;
1828
1829 case st_End:
1830 pscope = cur_file_ptr->cur_scope;
1831 if (pscope == (scope_t *) 0)
1832 error ("internal error, too many st_End's");
1833
1834 else
1835 {
1836 st_t begin_type = (st_t) pscope->lsym->st;
1837
1838 if (begin_type != st_File)
1839 scope_delta = -1;
1840
1841 /* Except for file, structure, union, or enumeration end
1842 blocks remove all tags created within this scope. */
1843 if (begin_type != st_File && storage != sc_Info)
1844 {
1845 ptag_head = cur_tag_head;
1846 cur_tag_head = ptag_head->prev;
1847
1848 for (ptag = ptag_head->first_tag;
1849 ptag != (tag_t *) 0;
1850 ptag = ptag_next)
1851 {
1852 if (ptag->forward_ref != (forward_t *) 0)
1853 add_unknown_tag (ptag);
1854
1855 ptag_next = ptag->same_block;
1856 ptag->hash_ptr->tag_ptr = ptag->same_name;
1857 free_tag (ptag);
1858 }
1859
1860 free_thead (ptag_head);
1861 }
1862
1863 cur_file_ptr->cur_scope = pscope->prev;
1864 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1865
1866 if (storage != sc_Info)
1867 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1868
1869 if (begin_type == st_File || begin_type == st_Block)
1870 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1871
1872 /* Functions push two or more aux words as follows:
1873 1st word: index+1 of the end symbol
1874 2nd word: type of the function (plus any aux words needed).
1875 Also, tie the external pointer back to the function begin symbol. */
1876 else
1877 {
1878 symint_t type;
1879 pscope->lsym->index = add_aux_sym_symint (ret+1);
1880 type = add_aux_sym_tir (&last_func_type_info,
1881 hash_no,
1882 &cur_file_ptr->thash_head[0]);
1883 if (last_func_eptr)
1884 {
1885 last_func_eptr->ifd = cur_file_ptr->file_index;
1886
1887 /* The index for an external st_Proc symbol is the index
1888 of the st_Proc symbol in the local symbol table. */
1889 last_func_eptr->asym.index = psym->index;
1890 }
1891 }
1892
1893 free_scope (pscope);
1894 }
1895 }
1896
1897 cur_file_ptr->nested_scopes += scope_delta;
1898
1899 if (debug && type != st_File
1900 && (debug > 2 || type == st_Block || type == st_End
1901 || type == st_Proc || type == st_StaticProc))
1902 {
1903 const char *sc_str = sc_to_string (storage);
1904 const char *st_str = st_to_string (type);
1905 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1906
1907 fprintf (stderr,
1908 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1909 value, depth, sc_str);
1910
1911 if (str_start && str_end_p1 - str_start > 0)
1912 fprintf (stderr, " st= %-11s name= %.*s\n",
1913 st_str, (int) (str_end_p1 - str_start), str_start);
1914 else
1915 {
1916 Size_t len = strlen (st_str);
1917 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1918 }
1919 }
1920
1921 return ret;
1922 }
1923
1924 \f
1925 /* Add an external symbol with symbol pointer ESYM and file index
1926 IFD. */
1927
1928 STATIC symint_t
1929 add_ext_symbol (EXTR *esym, int ifd)
1930 {
1931 const char *str_start; /* first byte in string */
1932 const char *str_end_p1; /* first byte after string */
1933 EXTR *psym;
1934 varray_t *vp = &ext_symbols;
1935 shash_t *hash_ptr = (shash_t *) 0;
1936
1937 str_start = ORIG_ESTRS (esym->asym.iss);
1938 str_end_p1 = str_start + strlen (str_start);
1939
1940 if (debug > 1)
1941 {
1942 long value = esym->asym.value;
1943 const char *sc_str = sc_to_string (esym->asym.sc);
1944 const char *st_str = st_to_string (esym->asym.st);
1945
1946 fprintf (stderr,
1947 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1948 value, ifd, sc_str);
1949
1950 if (str_start && str_end_p1 - str_start > 0)
1951 fprintf (stderr, " st= %-11s name= %.*s\n",
1952 st_str, (int) (str_end_p1 - str_start), str_start);
1953 else
1954 fprintf (stderr, " st= %s\n", st_str);
1955 }
1956
1957 if (vp->objects_last_page == vp->objects_per_page)
1958 add_varray_page (vp);
1959
1960 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1961
1962 *psym = *esym;
1963 psym->ifd = ifd;
1964 psym->asym.index = indexNil;
1965 psym->asym.iss = (str_start == (const char *) 0)
1966 ? 0
1967 : add_string (&ext_strings,
1968 &ext_str_hash[0],
1969 str_start,
1970 str_end_p1,
1971 &hash_ptr);
1972
1973 hash_ptr->esym_ptr = psym;
1974 return vp->num_allocated++;
1975 }
1976
1977 \f
1978 /* Add an auxiliary symbol (passing a symint). */
1979
1980 STATIC symint_t
1981 add_aux_sym_symint (symint_t aux_word)
1982 {
1983 AUXU *aux_ptr;
1984 efdr_t *file_ptr = cur_file_ptr;
1985 varray_t *vp = &file_ptr->aux_syms;
1986
1987 if (vp->objects_last_page == vp->objects_per_page)
1988 add_varray_page (vp);
1989
1990 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1991 aux_ptr->isym = aux_word;
1992
1993 return vp->num_allocated++;
1994 }
1995
1996
1997 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1998
1999 STATIC symint_t
2000 add_aux_sym_rndx (int file_index, symint_t sym_index)
2001 {
2002 AUXU *aux_ptr;
2003 efdr_t *file_ptr = cur_file_ptr;
2004 varray_t *vp = &file_ptr->aux_syms;
2005
2006 if (vp->objects_last_page == vp->objects_per_page)
2007 add_varray_page (vp);
2008
2009 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2010 aux_ptr->rndx.rfd = file_index;
2011 aux_ptr->rndx.index = sym_index;
2012
2013 return vp->num_allocated++;
2014 }
2015
2016 \f
2017 /* Add an auxiliary symbol (passing the basic type and possibly
2018 type qualifiers). */
2019
2020 STATIC symint_t
2021 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2022 {
2023 AUXU *aux_ptr;
2024 efdr_t *file_ptr = cur_file_ptr;
2025 varray_t *vp = &file_ptr->aux_syms;
2026 static AUXU init_aux;
2027 symint_t ret;
2028 int i;
2029 AUXU aux;
2030
2031 aux = init_aux;
2032 aux.ti.bt = (int) t->basic_type;
2033 aux.ti.continued = 0;
2034 aux.ti.fBitfield = t->bitfield;
2035
2036 aux.ti.tq0 = (int) t->type_qualifiers[0];
2037 aux.ti.tq1 = (int) t->type_qualifiers[1];
2038 aux.ti.tq2 = (int) t->type_qualifiers[2];
2039 aux.ti.tq3 = (int) t->type_qualifiers[3];
2040 aux.ti.tq4 = (int) t->type_qualifiers[4];
2041 aux.ti.tq5 = (int) t->type_qualifiers[5];
2042
2043
2044 /* For anything that adds additional information, we must not hash,
2045 so check here, and reset our state. */
2046
2047 if (state != hash_no
2048 && (t->type_qualifiers[0] == tq_Array
2049 || t->type_qualifiers[1] == tq_Array
2050 || t->type_qualifiers[2] == tq_Array
2051 || t->type_qualifiers[3] == tq_Array
2052 || t->type_qualifiers[4] == tq_Array
2053 || t->type_qualifiers[5] == tq_Array
2054 || t->basic_type == bt_Struct
2055 || t->basic_type == bt_Union
2056 || t->basic_type == bt_Enum
2057 || t->bitfield
2058 || t->num_dims > 0))
2059 state = hash_no;
2060
2061 /* See if we can hash this type, and save some space, but some types
2062 can't be hashed (because they contain arrays or continuations),
2063 and others can be put into the hash list, but cannot use existing
2064 types because other aux entries precede this one. */
2065
2066 if (state != hash_no)
2067 {
2068 thash_t *hash_ptr;
2069 symint_t hi;
2070
2071 hi = aux.isym & ((1 << HASHBITS) - 1);
2072 hi %= THASH_SIZE;
2073
2074 for (hash_ptr = hash_tbl[hi];
2075 hash_ptr != (thash_t *) 0;
2076 hash_ptr = hash_ptr->next)
2077 {
2078 if (aux.isym == hash_ptr->type.isym)
2079 break;
2080 }
2081
2082 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2083 return hash_ptr->indx;
2084
2085 if (hash_ptr == (thash_t *) 0)
2086 {
2087 hash_ptr = allocate_thash ();
2088 hash_ptr->next = hash_tbl[hi];
2089 hash_ptr->type = aux;
2090 hash_ptr->indx = vp->num_allocated;
2091 hash_tbl[hi] = hash_ptr;
2092 }
2093 }
2094
2095 /* Everything is set up, add the aux symbol. */
2096 if (vp->objects_last_page == vp->objects_per_page)
2097 add_varray_page (vp);
2098
2099 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2100 *aux_ptr = aux;
2101
2102 ret = vp->num_allocated++;
2103
2104 /* Add bitfield length if it exists.
2105
2106 NOTE: Mips documentation claims bitfield goes at the end of the
2107 AUX record, but the DECstation compiler emits it here.
2108 (This would only make a difference for enum bitfields.)
2109
2110 Also note: We use the last size given since gcc may emit 2
2111 for an enum bitfield. */
2112
2113 if (t->bitfield)
2114 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2115
2116
2117 /* Add tag information if needed. Structure, union, and enum
2118 references add 2 aux symbols: a [file index, symbol index]
2119 pointer to the structure type, and the current file index. */
2120
2121 if (t->basic_type == bt_Struct
2122 || t->basic_type == bt_Union
2123 || t->basic_type == bt_Enum)
2124 {
2125 symint_t file_index = t->tag_ptr->ifd;
2126 symint_t sym_index = t->tag_ptr->indx;
2127
2128 if (t->unknown_tag)
2129 {
2130 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2131 (void) add_aux_sym_symint ((symint_t)-1);
2132 }
2133 else if (sym_index != indexNil)
2134 {
2135 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2136 (void) add_aux_sym_symint (file_index);
2137 }
2138 else
2139 {
2140 forward_t *forward_ref = allocate_forward ();
2141
2142 forward_ref->type_ptr = aux_ptr;
2143 forward_ref->next = t->tag_ptr->forward_ref;
2144 t->tag_ptr->forward_ref = forward_ref;
2145
2146 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2147 forward_ref->index_ptr
2148 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2149
2150 (void) add_aux_sym_symint (file_index);
2151 forward_ref->ifd_ptr
2152 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2153 }
2154 }
2155
2156 /* Add information about array bounds if they exist. */
2157 for (i = 0; i < t->num_dims; i++)
2158 {
2159 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2160 cur_file_ptr->int_type);
2161
2162 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2163 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2164 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2165 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2166 ? 0
2167 : (t->sizes[i] * 8) / t->dimensions[i]);
2168 };
2169
2170 /* NOTE: Mips documentation claims that the bitfield width goes here.
2171 But it needs to be emitted earlier. */
2172
2173 return ret;
2174 }
2175
2176 \f
2177 /* Add a tag to the tag table (unless it already exists). */
2178
2179 STATIC tag_t *
2180 get_tag (const char *tag_start, /* 1st byte of tag name */
2181 const char *tag_end_p1, /* 1st byte after tag name */
2182 symint_t indx, /* index of tag start block */
2183 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2184
2185 {
2186 shash_t *hash_ptr;
2187 tag_t *tag_ptr;
2188 hash_ptr = hash_string (tag_start,
2189 tag_end_p1 - tag_start,
2190 &tag_hash[0],
2191 (symint_t *) 0);
2192
2193 if (hash_ptr != (shash_t *) 0
2194 && hash_ptr->tag_ptr != (tag_t *) 0)
2195 {
2196 tag_ptr = hash_ptr->tag_ptr;
2197 if (indx != indexNil)
2198 {
2199 tag_ptr->basic_type = basic_type;
2200 tag_ptr->ifd = cur_file_ptr->file_index;
2201 tag_ptr->indx = indx;
2202 }
2203 return tag_ptr;
2204 }
2205
2206 (void) add_string (&tag_strings,
2207 &tag_hash[0],
2208 tag_start,
2209 tag_end_p1,
2210 &hash_ptr);
2211
2212 tag_ptr = allocate_tag ();
2213 tag_ptr->forward_ref = (forward_t *) 0;
2214 tag_ptr->hash_ptr = hash_ptr;
2215 tag_ptr->same_name = hash_ptr->tag_ptr;
2216 tag_ptr->basic_type = basic_type;
2217 tag_ptr->indx = indx;
2218 tag_ptr->ifd = (indx == indexNil
2219 ? (symint_t) -1 : cur_file_ptr->file_index);
2220 tag_ptr->same_block = cur_tag_head->first_tag;
2221
2222 cur_tag_head->first_tag = tag_ptr;
2223 hash_ptr->tag_ptr = tag_ptr;
2224
2225 return tag_ptr;
2226 }
2227
2228 \f
2229 /* Add an unknown {struct, union, enum} tag. */
2230
2231 STATIC void
2232 add_unknown_tag (tag_t *ptag)
2233 {
2234 shash_t *hash_ptr = ptag->hash_ptr;
2235 char *name_start = hash_ptr->string;
2236 char *name_end_p1 = name_start + hash_ptr->len;
2237 forward_t *f_next = ptag->forward_ref;
2238 forward_t *f_cur;
2239 int sym_index;
2240 int file_index = cur_file_ptr->file_index;
2241
2242 if (debug > 1)
2243 {
2244 const char *agg_type = "{unknown aggregate type}";
2245 switch (ptag->basic_type)
2246 {
2247 case bt_Struct: agg_type = "struct"; break;
2248 case bt_Union: agg_type = "union"; break;
2249 case bt_Enum: agg_type = "enum"; break;
2250 default: break;
2251 }
2252
2253 fprintf (stderr, "unknown %s %.*s found\n",
2254 agg_type, (int) hash_ptr->len, name_start);
2255 }
2256
2257 sym_index = add_local_symbol (name_start,
2258 name_end_p1,
2259 st_Block,
2260 sc_Info,
2261 (symint_t) 0,
2262 (symint_t) 0);
2263
2264 (void) add_local_symbol (name_start,
2265 name_end_p1,
2266 st_End,
2267 sc_Info,
2268 (symint_t) 0,
2269 (symint_t) 0);
2270
2271 while (f_next != (forward_t *) 0)
2272 {
2273 f_cur = f_next;
2274 f_next = f_next->next;
2275
2276 f_cur->ifd_ptr->isym = file_index;
2277 f_cur->index_ptr->rndx.index = sym_index;
2278
2279 free_forward (f_cur);
2280 }
2281
2282 return;
2283 }
2284
2285 \f
2286 /* Add a procedure to the current file's list of procedures, and record
2287 this is the current procedure. If the assembler created a PDR for
2288 this procedure, use that to initialize the current PDR. */
2289
2290 STATIC void
2291 add_procedure (const char *func_start, /* 1st byte of func name */
2292 const char *func_end_p1) /* 1st byte after func name */
2293 {
2294 PDR *new_proc_ptr;
2295 efdr_t *file_ptr = cur_file_ptr;
2296 varray_t *vp = &file_ptr->procs;
2297 symint_t value = 0;
2298 st_t proc_type = st_Proc;
2299 shash_t *shash_ptr = hash_string (func_start,
2300 func_end_p1 - func_start,
2301 &orig_str_hash[0],
2302 (symint_t *) 0);
2303
2304 if (debug)
2305 fputc ('\n', stderr);
2306
2307 if (vp->objects_last_page == vp->objects_per_page)
2308 add_varray_page (vp);
2309
2310 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2311
2312 vp->num_allocated++;
2313
2314
2315 /* Did the assembler create this procedure? If so, get the PDR information. */
2316 cur_oproc_ptr = (PDR *) 0;
2317 if (shash_ptr != (shash_t *) 0)
2318 {
2319 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2320 SYMR *sym_ptr = shash_ptr->sym_ptr;
2321
2322 if (old_proc_ptr != (PDR *) 0
2323 && sym_ptr != (SYMR *) 0
2324 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2325 {
2326 cur_oproc_begin = sym_ptr;
2327 cur_oproc_end = shash_ptr->end_ptr;
2328 value = sym_ptr->value;
2329
2330 cur_oproc_ptr = old_proc_ptr;
2331 proc_type = (st_t) sym_ptr->st;
2332 *new_proc_ptr = *old_proc_ptr; /* initialize */
2333 }
2334 }
2335
2336 if (cur_oproc_ptr == (PDR *) 0)
2337 error ("did not find a PDR block for %.*s",
2338 (int) (func_end_p1 - func_start), func_start);
2339
2340 /* Determine the start of symbols. */
2341 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2342
2343 /* Push the start of the function. */
2344 (void) add_local_symbol (func_start, func_end_p1,
2345 proc_type, sc_Text,
2346 value,
2347 (symint_t) 0);
2348 }
2349
2350 \f
2351 /* Initialize the init_file structure. */
2352
2353 STATIC void
2354 initialize_init_file (void)
2355 {
2356 memset (&init_file, 0, sizeof (init_file));
2357
2358 init_file.fdr.lang = langC;
2359 init_file.fdr.fMerge = 1;
2360 init_file.fdr.glevel = GLEVEL_2;
2361
2362 #ifdef HOST_WORDS_BIG_ENDIAN
2363 init_file.fdr.fBigendian = 1;
2364 #endif
2365
2366 INITIALIZE_VARRAY (&init_file.strings, char);
2367 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2368 INITIALIZE_VARRAY (&init_file.procs, PDR);
2369 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2370
2371 init_file_initialized = 1;
2372 }
2373
2374 /* Add a new filename, and set up all of the file relative
2375 virtual arrays (strings, symbols, aux syms, etc.). Record
2376 where the current file structure lives. */
2377
2378 STATIC void
2379 add_file (const char *file_start, /* first byte in string */
2380 const char *file_end_p1) /* first byte after string */
2381 {
2382 static char zero_bytes[2] = { '\0', '\0' };
2383
2384 Ptrdiff_t len = file_end_p1 - file_start;
2385 int first_ch = *file_start;
2386 efdr_t *file_ptr;
2387
2388 if (debug)
2389 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2390
2391 /* See if the file has already been created. */
2392 for (file_ptr = first_file;
2393 file_ptr != (efdr_t *) 0;
2394 file_ptr = file_ptr->next_file)
2395 {
2396 if (first_ch == file_ptr->name[0]
2397 && file_ptr->name[len] == '\0'
2398 && memcmp (file_start, file_ptr->name, len) == 0)
2399 {
2400 cur_file_ptr = file_ptr;
2401 break;
2402 }
2403 }
2404
2405 /* If this is a new file, create it. */
2406 if (file_ptr == (efdr_t *) 0)
2407 {
2408 if (file_desc.objects_last_page == file_desc.objects_per_page)
2409 add_varray_page (&file_desc);
2410
2411 if (! init_file_initialized)
2412 initialize_init_file ();
2413
2414 file_ptr = cur_file_ptr
2415 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2416 *file_ptr = init_file;
2417
2418 file_ptr->file_index = file_desc.num_allocated++;
2419
2420 /* Allocate the string hash table. */
2421 file_ptr->shash_head = (shash_t **) allocate_page ();
2422
2423 /* Make sure 0 byte in string table is null */
2424 add_string (&file_ptr->strings,
2425 &file_ptr->shash_head[0],
2426 &zero_bytes[0],
2427 &zero_bytes[0],
2428 (shash_t **) 0);
2429
2430 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2431 fatal ("filename goes over one page boundary");
2432
2433 /* Push the start of the filename. We assume that the filename
2434 will be stored at string offset 1. */
2435 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2436 (symint_t) 0, (symint_t) 0);
2437 file_ptr->fdr.rss = 1;
2438 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2439 file_ptr->name_len = file_end_p1 - file_start;
2440
2441 /* Update the linked list of file descriptors. */
2442 *last_file_ptr = file_ptr;
2443 last_file_ptr = &file_ptr->next_file;
2444
2445 /* Add void & int types to the file (void should be first to catch
2446 errant 0's within the index fields). */
2447 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2448 hash_yes,
2449 &cur_file_ptr->thash_head[0]);
2450
2451 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2452 hash_yes,
2453 &cur_file_ptr->thash_head[0]);
2454 }
2455 }
2456
2457 \f
2458 /* Add a stream of random bytes to a varray. */
2459
2460 STATIC void
2461 add_bytes (varray_t *vp, /* virtual array to add too */
2462 char *input_ptr, /* start of the bytes */
2463 Size_t nitems) /* # items to move */
2464 {
2465 Size_t move_items;
2466 Size_t move_bytes;
2467 char *ptr;
2468
2469 while (nitems > 0)
2470 {
2471 if (vp->objects_last_page >= vp->objects_per_page)
2472 add_varray_page (vp);
2473
2474 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2475 move_items = vp->objects_per_page - vp->objects_last_page;
2476 if (move_items > nitems)
2477 move_items = nitems;
2478
2479 move_bytes = move_items * vp->object_size;
2480 nitems -= move_items;
2481
2482 if (move_bytes >= 32)
2483 {
2484 (void) memcpy (ptr, input_ptr, move_bytes);
2485 input_ptr += move_bytes;
2486 }
2487 else
2488 {
2489 while (move_bytes-- > 0)
2490 *ptr++ = *input_ptr++;
2491 }
2492 }
2493 }
2494
2495 \f
2496 /* Convert storage class to string. */
2497
2498 STATIC const char *
2499 sc_to_string (sc_t storage_class)
2500 {
2501 switch (storage_class)
2502 {
2503 case sc_Nil: return "Nil,";
2504 case sc_Text: return "Text,";
2505 case sc_Data: return "Data,";
2506 case sc_Bss: return "Bss,";
2507 case sc_Register: return "Register,";
2508 case sc_Abs: return "Abs,";
2509 case sc_Undefined: return "Undefined,";
2510 case sc_CdbLocal: return "CdbLocal,";
2511 case sc_Bits: return "Bits,";
2512 case sc_CdbSystem: return "CdbSystem,";
2513 case sc_RegImage: return "RegImage,";
2514 case sc_Info: return "Info,";
2515 case sc_UserStruct: return "UserStruct,";
2516 case sc_SData: return "SData,";
2517 case sc_SBss: return "SBss,";
2518 case sc_RData: return "RData,";
2519 case sc_Var: return "Var,";
2520 case sc_Common: return "Common,";
2521 case sc_SCommon: return "SCommon,";
2522 case sc_VarRegister: return "VarRegister,";
2523 case sc_Variant: return "Variant,";
2524 case sc_SUndefined: return "SUndefined,";
2525 case sc_Init: return "Init,";
2526 case sc_Max: return "Max,";
2527 }
2528
2529 return "???,";
2530 }
2531
2532 \f
2533 /* Convert symbol type to string. */
2534
2535 STATIC const char *
2536 st_to_string (st_t symbol_type)
2537 {
2538 switch (symbol_type)
2539 {
2540 case st_Nil: return "Nil,";
2541 case st_Global: return "Global,";
2542 case st_Static: return "Static,";
2543 case st_Param: return "Param,";
2544 case st_Local: return "Local,";
2545 case st_Label: return "Label,";
2546 case st_Proc: return "Proc,";
2547 case st_Block: return "Block,";
2548 case st_End: return "End,";
2549 case st_Member: return "Member,";
2550 case st_Typedef: return "Typedef,";
2551 case st_File: return "File,";
2552 case st_RegReloc: return "RegReloc,";
2553 case st_Forward: return "Forward,";
2554 case st_StaticProc: return "StaticProc,";
2555 case st_Constant: return "Constant,";
2556 case st_Str: return "String,";
2557 case st_Number: return "Number,";
2558 case st_Expr: return "Expr,";
2559 case st_Type: return "Type,";
2560 case st_Max: return "Max,";
2561 }
2562
2563 return "???,";
2564 }
2565
2566 \f
2567 /* Read a line from standard input, and return the start of the buffer
2568 (which is grows if the line is too big). We split lines at the
2569 semi-colon, and return each logical line independently. */
2570
2571 STATIC char *
2572 read_line (void)
2573 {
2574 static int line_split_p = 0;
2575 int string_p = 0;
2576 int comment_p = 0;
2577 int ch;
2578 char *ptr;
2579
2580 if (cur_line_start == (char *) 0)
2581 { /* allocate initial page */
2582 cur_line_start = (char *) allocate_page ();
2583 cur_line_alloc = PAGE_SIZE;
2584 }
2585
2586 if (!line_split_p)
2587 line_number++;
2588
2589 line_split_p = 0;
2590 cur_line_nbytes = 0;
2591
2592 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2593 {
2594 if (++cur_line_nbytes >= cur_line_alloc-1)
2595 {
2596 int num_pages = cur_line_alloc / PAGE_SIZE;
2597 char *old_buffer = cur_line_start;
2598
2599 cur_line_alloc += PAGE_SIZE;
2600 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2601 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2602
2603 ptr = cur_line_start + cur_line_nbytes - 1;
2604 }
2605
2606 if (ch == '\n')
2607 {
2608 *ptr++ = '\n';
2609 *ptr = '\0';
2610 cur_line_ptr = cur_line_start;
2611 return cur_line_ptr;
2612 }
2613
2614 else if (ch == '\0')
2615 error ("null character found in input");
2616
2617 else if (!comment_p)
2618 {
2619 if (ch == '"')
2620 string_p = !string_p;
2621
2622 else if (ch == '#')
2623 comment_p++;
2624
2625 else if (ch == ';' && !string_p)
2626 {
2627 line_split_p = 1;
2628 *ptr++ = '\n';
2629 *ptr = '\0';
2630 cur_line_ptr = cur_line_start;
2631 return cur_line_ptr;
2632 }
2633 }
2634 }
2635
2636 if (ferror (stdin))
2637 pfatal_with_name (input_name);
2638
2639 cur_line_ptr = (char *) 0;
2640 return (char *) 0;
2641 }
2642
2643 \f
2644 /* Parse #.begin directives which have a label as the first argument
2645 which gives the location of the start of the block. */
2646
2647 STATIC void
2648 parse_begin (const char *start)
2649 {
2650 const char *end_p1; /* end of label */
2651 int ch;
2652 shash_t *hash_ptr; /* hash pointer to lookup label */
2653
2654 if (cur_file_ptr == (efdr_t *) 0)
2655 {
2656 error ("#.begin directive without a preceding .file directive");
2657 return;
2658 }
2659
2660 if (cur_proc_ptr == (PDR *) 0)
2661 {
2662 error ("#.begin directive without a preceding .ent directive");
2663 return;
2664 }
2665
2666 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2667 ;
2668
2669 hash_ptr = hash_string (start,
2670 end_p1 - start,
2671 &orig_str_hash[0],
2672 (symint_t *) 0);
2673
2674 if (hash_ptr == (shash_t *) 0)
2675 {
2676 error ("label %.*s not found for #.begin",
2677 (int) (end_p1 - start), start);
2678 return;
2679 }
2680
2681 if (cur_oproc_begin == (SYMR *) 0)
2682 {
2683 error ("procedure table %.*s not found for #.begin",
2684 (int) (end_p1 - start), start);
2685 return;
2686 }
2687
2688 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2689 st_Block, sc_Text,
2690 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2691 (symint_t) 0);
2692 }
2693
2694 \f
2695 /* Parse #.bend directives which have a label as the first argument
2696 which gives the location of the end of the block. */
2697
2698 STATIC void
2699 parse_bend (const char *start)
2700 {
2701 const char *end_p1; /* end of label */
2702 int ch;
2703 shash_t *hash_ptr; /* hash pointer to lookup label */
2704
2705 if (cur_file_ptr == (efdr_t *) 0)
2706 {
2707 error ("#.begin directive without a preceding .file directive");
2708 return;
2709 }
2710
2711 if (cur_proc_ptr == (PDR *) 0)
2712 {
2713 error ("#.bend directive without a preceding .ent directive");
2714 return;
2715 }
2716
2717 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2718 ;
2719
2720 hash_ptr = hash_string (start,
2721 end_p1 - start,
2722 &orig_str_hash[0],
2723 (symint_t *) 0);
2724
2725 if (hash_ptr == (shash_t *) 0)
2726 {
2727 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2728 return;
2729 }
2730
2731 if (cur_oproc_begin == (SYMR *) 0)
2732 {
2733 error ("procedure table %.*s not found for #.bend",
2734 (int) (end_p1 - start), start);
2735 return;
2736 }
2737
2738 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2739 st_End, sc_Text,
2740 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2741 (symint_t) 0);
2742 }
2743
2744 \f
2745 /* Parse #.def directives, which are contain standard COFF subdirectives
2746 to describe the debugging format. These subdirectives include:
2747
2748 .scl specify storage class
2749 .val specify a value
2750 .endef specify end of COFF directives
2751 .type specify the type
2752 .size specify the size of an array
2753 .dim specify an array dimension
2754 .tag specify a tag for a struct, union, or enum. */
2755
2756 STATIC void
2757 parse_def (const char *name_start)
2758 {
2759 const char *dir_start; /* start of current directive*/
2760 const char *dir_end_p1; /* end+1 of current directive*/
2761 const char *arg_start; /* start of current argument */
2762 const char *arg_end_p1; /* end+1 of current argument */
2763 const char *name_end_p1; /* end+1 of label */
2764 const char *tag_start = 0; /* start of tag name */
2765 const char *tag_end_p1 = 0; /* end+1 of tag name */
2766 sc_t storage_class = sc_Nil;
2767 st_t symbol_type = st_Nil;
2768 type_info_t t;
2769 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2770 int is_function = 0; /* != 0 if function */
2771 symint_t value = 0;
2772 symint_t indx = cur_file_ptr->void_type;
2773 int error_line = 0;
2774 symint_t arg_number;
2775 symint_t temp_array[ N_TQ ];
2776 int arg_was_number;
2777 int ch, i;
2778 Ptrdiff_t len;
2779
2780 static int inside_enumeration = 0; /* is this an enumeration? */
2781
2782
2783 /* Initialize the type information. */
2784 t = type_info_init;
2785
2786
2787 /* Search for the end of the name being defined. */
2788 /* Allow spaces and such in names for G++ templates, which produce stabs
2789 that look like:
2790
2791 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2792
2793 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2794 ;
2795
2796 if (ch == '\0')
2797 {
2798 error_line = __LINE__;
2799 saber_stop ();
2800 goto bomb_out;
2801 }
2802
2803 /* Parse the remaining subdirectives now. */
2804 dir_start = name_end_p1+1;
2805 for (;;)
2806 {
2807 while ((ch = *dir_start) == ' ' || ch == '\t')
2808 ++dir_start;
2809
2810 if (ch != '.')
2811 {
2812 error_line = __LINE__;
2813 saber_stop ();
2814 goto bomb_out;
2815 }
2816
2817 /* Are we done? */
2818 if (dir_start[1] == 'e'
2819 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2820 break;
2821
2822 /* Pick up the subdirective now. */
2823 for (dir_end_p1 = dir_start+1;
2824 (ch = *dir_end_p1) != ' ' && ch != '\t';
2825 dir_end_p1++)
2826 {
2827 if (ch == '\0' || ISSPACE (ch))
2828 {
2829 error_line = __LINE__;
2830 saber_stop ();
2831 goto bomb_out;
2832 }
2833 }
2834
2835 /* Pick up the subdirective argument now. */
2836 arg_was_number = arg_number = 0;
2837 arg_end_p1 = 0;
2838 arg_start = dir_end_p1+1;
2839 ch = *arg_start;
2840 while (ch == ' ' || ch == '\t')
2841 ch = *++arg_start;
2842
2843 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2844 {
2845 int ch2;
2846 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2847 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2848 arg_was_number++;
2849 }
2850
2851 else if (ch == '\0' || ISSPACE (ch))
2852 {
2853 error_line = __LINE__;
2854 saber_stop ();
2855 goto bomb_out;
2856 }
2857
2858 if (!arg_was_number)
2859 {
2860 /* Allow spaces and such in names for G++ templates. */
2861 for (arg_end_p1 = arg_start+1;
2862 (ch = *arg_end_p1) != ';' && ch != '\0';
2863 arg_end_p1++)
2864 ;
2865
2866 if (ch == '\0')
2867 {
2868 error_line = __LINE__;
2869 saber_stop ();
2870 goto bomb_out;
2871 }
2872 }
2873
2874 /* Classify the directives now. */
2875 len = dir_end_p1 - dir_start;
2876 switch (dir_start[1])
2877 {
2878 default:
2879 error_line = __LINE__;
2880 saber_stop ();
2881 goto bomb_out;
2882
2883 case 'd':
2884 if (len == sizeof (".dim")-1
2885 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2886 && arg_was_number)
2887 {
2888 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2889
2890 *t_ptr = arg_number;
2891 while (*arg_end_p1 == ',' && arg_was_number)
2892 {
2893 arg_start = arg_end_p1+1;
2894 ch = *arg_start;
2895 while (ch == ' ' || ch == '\t')
2896 ch = *++arg_start;
2897
2898 arg_was_number = 0;
2899 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2900 {
2901 int ch2;
2902 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2903 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2904 arg_was_number++;
2905
2906 if (t_ptr == &temp_array[0])
2907 {
2908 error_line = __LINE__;
2909 saber_stop ();
2910 goto bomb_out;
2911 }
2912
2913 *--t_ptr = arg_number;
2914 }
2915 }
2916
2917 /* Reverse order of dimensions. */
2918 while (t_ptr <= &temp_array[ N_TQ-1 ])
2919 {
2920 if (t.num_dims >= N_TQ-1)
2921 {
2922 error_line = __LINE__;
2923 saber_stop ();
2924 goto bomb_out;
2925 }
2926
2927 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2928 }
2929 break;
2930 }
2931 else
2932 {
2933 error_line = __LINE__;
2934 saber_stop ();
2935 goto bomb_out;
2936 }
2937
2938
2939 case 's':
2940 if (len == sizeof (".scl")-1
2941 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2942 && arg_was_number
2943 && arg_number < ((symint_t) C_MAX))
2944 {
2945 /* If the symbol is a static or external, we have
2946 already gotten the appropriate type and class, so
2947 make sure we don't override those values. This is
2948 needed because there are some type and classes that
2949 are not in COFF, such as short data, etc. */
2950 if (symbol_type == st_Nil)
2951 {
2952 symbol_type = map_coff_sym_type[arg_number];
2953 storage_class = map_coff_storage [arg_number];
2954 }
2955 break;
2956 }
2957
2958 else if (len == sizeof (".size")-1
2959 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2960 && arg_was_number)
2961 {
2962 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2963
2964 *t_ptr = arg_number;
2965 while (*arg_end_p1 == ',' && arg_was_number)
2966 {
2967 arg_start = arg_end_p1+1;
2968 ch = *arg_start;
2969 while (ch == ' ' || ch == '\t')
2970 ch = *++arg_start;
2971
2972 arg_was_number = 0;
2973 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2974 {
2975 int ch2;
2976 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2977 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2978 arg_was_number++;
2979
2980 if (t_ptr == &temp_array[0])
2981 {
2982 error_line = __LINE__;
2983 saber_stop ();
2984 goto bomb_out;
2985 }
2986
2987 *--t_ptr = arg_number;
2988 }
2989 }
2990
2991 /* Reverse order of sizes. */
2992 while (t_ptr <= &temp_array[ N_TQ-1 ])
2993 {
2994 if (t.num_sizes >= N_TQ-1)
2995 {
2996 error_line = __LINE__;
2997 saber_stop ();
2998 goto bomb_out;
2999 }
3000
3001 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3002 }
3003 break;
3004 }
3005
3006 else
3007 {
3008 error_line = __LINE__;
3009 saber_stop ();
3010 goto bomb_out;
3011 }
3012
3013
3014 case 't':
3015 if (len == sizeof (".type")-1
3016 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3017 && arg_was_number)
3018 {
3019 tq_t *tq_ptr = &t.type_qualifiers[0];
3020
3021 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3022 t.basic_type = map_coff_types [(int) t.orig_type];
3023 for (i = N_TQ-1; i >= 0; i--)
3024 {
3025 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3026 & N_TMASK);
3027
3028 if (dt != (int) DT_NON)
3029 *tq_ptr++ = map_coff_derived_type [dt];
3030 }
3031
3032 /* If this is a function, ignore it, so that we don't get
3033 two entries (one from the .ent, and one for the .def
3034 that precedes it). Save the type information so that
3035 the end block can properly add it after the begin block
3036 index. For MIPS knows what reason, we must strip off
3037 the function type at this point. */
3038 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3039 {
3040 is_function = 1;
3041 tq_ptr[-1] = tq_Nil;
3042 }
3043
3044 break;
3045 }
3046
3047 else if (len == sizeof (".tag")-1
3048 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3049 {
3050 tag_start = arg_start;
3051 tag_end_p1 = arg_end_p1;
3052 break;
3053 }
3054
3055 else
3056 {
3057 error_line = __LINE__;
3058 saber_stop ();
3059 goto bomb_out;
3060 }
3061
3062
3063 case 'v':
3064 if (len == sizeof (".val")-1
3065 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3066 {
3067 if (arg_was_number)
3068 value = arg_number;
3069
3070 /* If the value is not an integer value, it must be the
3071 name of a static or global item. Look up the name in
3072 the original symbol table to pick up the storage
3073 class, symbol type, etc. */
3074 else
3075 {
3076 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3077 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3078
3079 ext_hash_ptr = hash_string (arg_start,
3080 arg_end_p1 - arg_start,
3081 &ext_str_hash[0],
3082 (symint_t *) 0);
3083
3084 if (ext_hash_ptr != (shash_t *) 0
3085 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3086 eptr = ext_hash_ptr->esym_ptr;
3087
3088 orig_hash_ptr = hash_string (arg_start,
3089 arg_end_p1 - arg_start,
3090 &orig_str_hash[0],
3091 (symint_t *) 0);
3092
3093 if ((orig_hash_ptr == (shash_t *) 0
3094 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3095 && eptr == (EXTR *) 0)
3096 {
3097 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3098 (int) (arg_end_p1 - arg_start),
3099 arg_start);
3100 value = 0;
3101 }
3102 else
3103 {
3104 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3105 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3106 ? orig_hash_ptr->sym_ptr
3107 : &eptr->asym;
3108
3109 symbol_type = (st_t) ptr->st;
3110 storage_class = (sc_t) ptr->sc;
3111 value = ptr->value;
3112 }
3113 }
3114 break;
3115 }
3116 else
3117 {
3118 error_line = __LINE__;
3119 saber_stop ();
3120 goto bomb_out;
3121 }
3122 }
3123
3124 /* Set up to find next directive. */
3125 dir_start = arg_end_p1 + 1;
3126 }
3127
3128
3129 if (storage_class == sc_Bits)
3130 {
3131 t.bitfield = 1;
3132 t.extra_sizes = 1;
3133 }
3134 else
3135 t.extra_sizes = 0;
3136
3137 if (t.num_dims > 0)
3138 {
3139 int num_real_sizes = t.num_sizes - t.extra_sizes;
3140 int diff = t.num_dims - num_real_sizes;
3141 int i = t.num_dims - 1;
3142 int j;
3143
3144 if (num_real_sizes != 1 || diff < 0)
3145 {
3146 error_line = __LINE__;
3147 saber_stop ();
3148 goto bomb_out;
3149 }
3150
3151 /* If this is an array, make sure the same number of dimensions
3152 and sizes were passed, creating extra sizes for multiply
3153 dimensioned arrays if not passed. */
3154
3155 if (diff)
3156 {
3157 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3158 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3159
3160 t.num_sizes = i + 1;
3161 for ( i--; i >= 0; i-- )
3162 {
3163 if (t.dimensions[ i+1 ])
3164 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3165 else
3166 t.sizes[ i ] = t.sizes[ i+1 ];
3167 }
3168 }
3169 }
3170
3171 /* Except for enumeration members & begin/ending of scopes, put the
3172 type word in the aux. symbol table. */
3173
3174 if (symbol_type == st_Block || symbol_type == st_End)
3175 indx = 0;
3176
3177 else if (inside_enumeration)
3178 indx = cur_file_ptr->void_type;
3179
3180 else
3181 {
3182 if (t.basic_type == bt_Struct
3183 || t.basic_type == bt_Union
3184 || t.basic_type == bt_Enum)
3185 {
3186 if (tag_start == (char *) 0)
3187 {
3188 error ("no tag specified for %.*s",
3189 (int) (name_end_p1 - name_start),
3190 name_start);
3191 return;
3192 }
3193
3194 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3195 t.basic_type);
3196 }
3197
3198 if (is_function)
3199 {
3200 last_func_type_info = t;
3201 last_func_eptr = eptr;
3202 return;
3203 }
3204
3205 indx = add_aux_sym_tir (&t,
3206 hash_yes,
3207 &cur_file_ptr->thash_head[0]);
3208 }
3209
3210
3211 /* If this is an external or static symbol, update the appropriate
3212 external symbol. */
3213
3214 if (eptr != (EXTR *) 0
3215 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3216 {
3217 eptr->ifd = cur_file_ptr->file_index;
3218 eptr->asym.index = indx;
3219 }
3220
3221
3222 /* Do any last minute adjustments that are necessary. */
3223 switch (symbol_type)
3224 {
3225 default:
3226 break;
3227
3228
3229 /* For the beginning of structs, unions, and enumerations, the
3230 size info needs to be passed in the value field. */
3231
3232 case st_Block:
3233 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3234 {
3235 error_line = __LINE__;
3236 saber_stop ();
3237 goto bomb_out;
3238 }
3239
3240 else
3241 value = t.sizes[0];
3242
3243 inside_enumeration = (t.orig_type == T_ENUM);
3244 break;
3245
3246
3247 /* For the end of structs, unions, and enumerations, omit the
3248 name which is always ".eos". This needs to be done last, so
3249 that any error reporting above gives the correct name. */
3250
3251 case st_End:
3252 name_start = name_end_p1 = 0;
3253 value = inside_enumeration = 0;
3254 break;
3255
3256
3257 /* Members of structures and unions that aren't bitfields, need
3258 to adjust the value from a byte offset to a bit offset.
3259 Members of enumerations do not have the value adjusted, and
3260 can be distinguished by indx == indexNil. For enumerations,
3261 update the maximum enumeration value. */
3262
3263 case st_Member:
3264 if (!t.bitfield && !inside_enumeration)
3265 value *= 8;
3266
3267 break;
3268 }
3269
3270
3271 /* Add the symbol, except for global symbols outside of functions,
3272 for which the external symbol table is fine enough. */
3273
3274 if (eptr == (EXTR *) 0
3275 || eptr->asym.st == (int) st_Nil
3276 || cur_proc_ptr != (PDR *) 0)
3277 {
3278 symint_t isym = add_local_symbol (name_start, name_end_p1,
3279 symbol_type, storage_class,
3280 value,
3281 indx);
3282
3283 /* Deal with struct, union, and enum tags. */
3284 if (symbol_type == st_Block)
3285 {
3286 /* Create or update the tag information. */
3287 tag_t *tag_ptr = get_tag (name_start,
3288 name_end_p1,
3289 isym,
3290 t.basic_type);
3291
3292 /* If there are any forward references, fill in the appropriate
3293 file and symbol indexes. */
3294
3295 symint_t file_index = cur_file_ptr->file_index;
3296 forward_t *f_next = tag_ptr->forward_ref;
3297 forward_t *f_cur;
3298
3299 while (f_next != (forward_t *) 0)
3300 {
3301 f_cur = f_next;
3302 f_next = f_next->next;
3303
3304 f_cur->ifd_ptr->isym = file_index;
3305 f_cur->index_ptr->rndx.index = isym;
3306
3307 free_forward (f_cur);
3308 }
3309
3310 tag_ptr->forward_ref = (forward_t *) 0;
3311 }
3312 }
3313
3314 /* Normal return */
3315 return;
3316
3317 /* Error return, issue message. */
3318 bomb_out:
3319 if (error_line)
3320 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3321 else
3322 error ("compiler error, badly formed #.def");
3323
3324 return;
3325 }
3326
3327 \f
3328 /* Parse .end directives. */
3329
3330 STATIC void
3331 parse_end (const char *start)
3332 {
3333 const char *start_func, *end_func_p1;
3334 int ch;
3335 symint_t value;
3336 FDR *orig_fdr;
3337
3338 if (cur_file_ptr == (efdr_t *) 0)
3339 {
3340 error (".end directive without a preceding .file directive");
3341 return;
3342 }
3343
3344 if (cur_proc_ptr == (PDR *) 0)
3345 {
3346 error (".end directive without a preceding .ent directive");
3347 return;
3348 }
3349
3350 /* Get the function name, skipping whitespace. */
3351 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3352 ;
3353
3354 ch = *start_func;
3355 if (!IS_ASM_IDENT (ch))
3356 {
3357 error (".end directive has no name");
3358 return;
3359 }
3360
3361 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3362 ;
3363
3364
3365 /* Get the value field for creating the end from the original object
3366 file (which we find by locating the procedure start, and using the
3367 pointer to the end+1 block and backing up. The index points to a
3368 two word aux. symbol, whose first word is the index of the end
3369 symbol, and the second word is the type of the function return
3370 value. */
3371
3372 orig_fdr = cur_file_ptr->orig_fdr;
3373 value = 0;
3374 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3375 value = cur_oproc_end->value;
3376
3377 else
3378 error ("cannot find .end block for %.*s",
3379 (int) (end_func_p1 - start_func), start_func);
3380
3381 (void) add_local_symbol (start_func, end_func_p1,
3382 st_End, sc_Text,
3383 value,
3384 (symint_t) 0);
3385
3386 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3387 }
3388
3389 \f
3390 /* Parse .ent directives. */
3391
3392 STATIC void
3393 parse_ent (const char *start)
3394 {
3395 const char *start_func, *end_func_p1;
3396 int ch;
3397
3398 if (cur_file_ptr == (efdr_t *) 0)
3399 {
3400 error (".ent directive without a preceding .file directive");
3401 return;
3402 }
3403
3404 if (cur_proc_ptr != (PDR *) 0)
3405 {
3406 error ("second .ent directive found before .end directive");
3407 return;
3408 }
3409
3410 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3411 ;
3412
3413 ch = *start_func;
3414 if (!IS_ASM_IDENT (ch))
3415 {
3416 error (".ent directive has no name");
3417 return;
3418 }
3419
3420 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3421 ;
3422
3423 (void) add_procedure (start_func, end_func_p1);
3424 }
3425
3426 \f
3427 /* Parse .file directives. */
3428
3429 STATIC void
3430 parse_file (const char *start)
3431 {
3432 char *p;
3433 char *start_name, *end_name_p1;
3434
3435 (void) strtol (start, &p, 0);
3436 if (start == p
3437 || (start_name = strchr (p, '"')) == (char *) 0
3438 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3439 {
3440 error ("invalid .file directive");
3441 return;
3442 }
3443
3444 if (cur_proc_ptr != (PDR *) 0)
3445 {
3446 error ("no way to handle .file within .ent/.end section");
3447 return;
3448 }
3449
3450 add_file (start_name, end_name_p1);
3451 }
3452
3453 \f
3454 /* Make sure the @stabs symbol is emitted. */
3455
3456 static void
3457 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3458 {
3459 if (!stabs_seen)
3460 {
3461 /* Add a dummy @stabs symbol. */
3462 stabs_seen = 1;
3463 (void) add_local_symbol (stabs_symbol,
3464 stabs_symbol + sizeof (stabs_symbol),
3465 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3466
3467 }
3468 }
3469
3470 \f
3471 /* Parse .stabs directives.
3472
3473 .stabs directives have five fields:
3474 "string" a string, encoding the type information.
3475 code a numeric code, defined in <stab.h>
3476 0 a zero
3477 0 a zero or line number
3478 value a numeric value or an address.
3479
3480 If the value is relocatable, we transform this into:
3481 iss points as an index into string space
3482 value value from lookup of the name
3483 st st from lookup of the name
3484 sc sc from lookup of the name
3485 index code|CODE_MASK
3486
3487 If the value is not relocatable, we transform this into:
3488 iss points as an index into string space
3489 value value
3490 st st_Nil
3491 sc sc_Nil
3492 index code|CODE_MASK
3493
3494 .stabn directives have four fields (string is null):
3495 code a numeric code, defined in <stab.h>
3496 0 a zero
3497 0 a zero or a line number
3498 value a numeric value or an address. */
3499
3500 STATIC void
3501 parse_stabs_common (const char *string_start, /* start of string or NULL */
3502 const char *string_end, /* end+1 of string or NULL */
3503 const char *rest) /* rest of the directive. */
3504 {
3505 efdr_t *save_file_ptr = cur_file_ptr;
3506 symint_t code;
3507 symint_t value;
3508 char *p;
3509 st_t st;
3510 sc_t sc;
3511 int ch;
3512
3513 if (stabs_seen == 0)
3514 mark_stabs ("");
3515
3516 /* Read code from stabs. */
3517 if (!ISDIGIT (*rest))
3518 {
3519 error ("invalid .stabs/.stabn directive, code is non-numeric");
3520 return;
3521 }
3522
3523 code = strtol (rest, &p, 0);
3524
3525 /* Line number stabs are handled differently, since they have two values,
3526 the line number and the address of the label. We use the index field
3527 (aka code) to hold the line number, and the value field to hold the
3528 address. The symbol type is st_Label, which should be different from
3529 the other stabs, so that gdb can recognize it. */
3530
3531 if (code == (int) N_SLINE)
3532 {
3533 SYMR *sym_ptr, dummy_symr;
3534 shash_t *shash_ptr;
3535
3536 /* Skip ,0, */
3537 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3538 {
3539 error ("invalid line number .stabs/.stabn directive");
3540 return;
3541 }
3542
3543 code = strtol (p+3, &p, 0);
3544 ch = *++p;
3545 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3546 {
3547 error ("invalid line number .stabs/.stabn directive");
3548 return;
3549 }
3550
3551 dummy_symr.index = code;
3552 if (dummy_symr.index != code)
3553 {
3554 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3555 code);
3556
3557 return;
3558 }
3559
3560 shash_ptr = hash_string (p,
3561 strlen (p) - 1,
3562 &orig_str_hash[0],
3563 (symint_t *) 0);
3564
3565 if (shash_ptr == (shash_t *) 0
3566 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3567 {
3568 error ("invalid .stabs/.stabn directive, value not found");
3569 return;
3570 }
3571
3572 if ((st_t) sym_ptr->st != st_Label)
3573 {
3574 error ("invalid line number .stabs/.stabn directive");
3575 return;
3576 }
3577
3578 st = st_Label;
3579 sc = (sc_t) sym_ptr->sc;
3580 value = sym_ptr->value;
3581 }
3582 else
3583 {
3584 /* Skip ,<num>,<num>, */
3585 if (*p++ != ',')
3586 goto failure;
3587 for (; ISDIGIT (*p); p++)
3588 ;
3589 if (*p++ != ',')
3590 goto failure;
3591 for (; ISDIGIT (*p); p++)
3592 ;
3593 if (*p++ != ',')
3594 goto failure;
3595 ch = *p;
3596 if (!IS_ASM_IDENT (ch) && ch != '-')
3597 {
3598 failure:
3599 error ("invalid .stabs/.stabn directive, bad character");
3600 return;
3601 }
3602
3603 if (ISDIGIT (ch) || ch == '-')
3604 {
3605 st = st_Nil;
3606 sc = sc_Nil;
3607 value = strtol (p, &p, 0);
3608 if (*p != '\n')
3609 {
3610 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3611 return;
3612 }
3613 }
3614 else if (!IS_ASM_IDENT (ch))
3615 {
3616 error ("invalid .stabs/.stabn directive, bad character");
3617 return;
3618 }
3619 else
3620 {
3621 SYMR *sym_ptr;
3622 shash_t *shash_ptr;
3623 const char *start, *end_p1;
3624
3625 start = p;
3626 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3627 {
3628 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3629 end_p1 = start + strlen (start) - 1;
3630 }
3631
3632 shash_ptr = hash_string (start,
3633 end_p1 - start,
3634 &orig_str_hash[0],
3635 (symint_t *) 0);
3636
3637 if (shash_ptr == (shash_t *) 0
3638 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3639 {
3640 shash_ptr = hash_string (start,
3641 end_p1 - start,
3642 &ext_str_hash[0],
3643 (symint_t *) 0);
3644
3645 if (shash_ptr == (shash_t *) 0
3646 || shash_ptr->esym_ptr == (EXTR *) 0)
3647 {
3648 error ("invalid .stabs/.stabn directive, value not found");
3649 return;
3650 }
3651 else
3652 sym_ptr = &(shash_ptr->esym_ptr->asym);
3653 }
3654
3655 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3656 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3657 {
3658 sc = scNil;
3659 st = stNil;
3660 }
3661 else
3662 {
3663 sc = (sc_t) sym_ptr->sc;
3664 st = (st_t) sym_ptr->st;
3665 }
3666 value = sym_ptr->value;
3667
3668 ch = *end_p1++;
3669 if (ch != '\n')
3670 {
3671 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3672 || ((ch != '+') && (ch != '-')))
3673 {
3674 error ("invalid .stabs/.stabn directive, badly formed value");
3675 return;
3676 }
3677 if (ch == '+')
3678 value += strtol (end_p1, &p, 0);
3679 else if (ch == '-')
3680 value -= strtol (end_p1, &p, 0);
3681
3682 if (*p != '\n')
3683 {
3684 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3685 return;
3686 }
3687 }
3688 }
3689 code = MIPS_MARK_STAB (code);
3690 }
3691
3692 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3693 /* Restore normal file type. */
3694 cur_file_ptr = save_file_ptr;
3695 }
3696
3697
3698 STATIC void
3699 parse_stabs (const char *start)
3700 {
3701 const char *end = strchr (start+1, '"');
3702
3703 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3704 {
3705 error ("invalid .stabs directive, no string");
3706 return;
3707 }
3708
3709 parse_stabs_common (start+1, end, end+2);
3710 }
3711
3712
3713 STATIC void
3714 parse_stabn (const char *start)
3715 {
3716 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3717 }
3718
3719 \f
3720 /* Parse the input file, and write the lines to the output file
3721 if needed. */
3722
3723 STATIC void
3724 parse_input (void)
3725 {
3726 char *p;
3727 Size_t i;
3728 thead_t *ptag_head;
3729 tag_t *ptag;
3730 tag_t *ptag_next;
3731
3732 if (debug)
3733 fprintf (stderr, "\tinput\n");
3734
3735 /* Add a dummy scope block around the entire compilation unit for
3736 structures defined outside of blocks. */
3737 ptag_head = allocate_thead ();
3738 ptag_head->first_tag = 0;
3739 ptag_head->prev = cur_tag_head;
3740 cur_tag_head = ptag_head;
3741
3742 while ((p = read_line ()) != (char *) 0)
3743 {
3744 /* Skip leading blanks. */
3745 while (ISSPACE ((unsigned char)*p))
3746 p++;
3747
3748 /* See if it's a directive we handle. If so, dispatch handler. */
3749 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3750 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3751 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3752 {
3753 p += pseudo_ops[i].len; /* skip to first argument */
3754 while (ISSPACE ((unsigned char)*p))
3755 p++;
3756
3757 (*pseudo_ops[i].func)( p );
3758 break;
3759 }
3760 }
3761
3762 /* Process any tags at global level. */
3763 ptag_head = cur_tag_head;
3764 cur_tag_head = ptag_head->prev;
3765
3766 for (ptag = ptag_head->first_tag;
3767 ptag != (tag_t *) 0;
3768 ptag = ptag_next)
3769 {
3770 if (ptag->forward_ref != (forward_t *) 0)
3771 add_unknown_tag (ptag);
3772
3773 ptag_next = ptag->same_block;
3774 ptag->hash_ptr->tag_ptr = ptag->same_name;
3775 free_tag (ptag);
3776 }
3777
3778 free_thead (ptag_head);
3779
3780 }
3781
3782 \f
3783 /* Update the global headers with the final offsets in preparation
3784 to write out the .T file. */
3785
3786 STATIC void
3787 update_headers (void)
3788 {
3789 symint_t i;
3790 efdr_t *file_ptr;
3791
3792 /* Set up the symbolic header. */
3793 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3794 symbolic_header.magic = orig_sym_hdr.magic;
3795 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3796
3797 /* Set up global counts. */
3798 symbolic_header.issExtMax = ext_strings.num_allocated;
3799 symbolic_header.idnMax = dense_num.num_allocated;
3800 symbolic_header.ifdMax = file_desc.num_allocated;
3801 symbolic_header.iextMax = ext_symbols.num_allocated;
3802 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3803 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3804 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3805 symbolic_header.crfd = orig_sym_hdr.crfd;
3806
3807
3808 /* Loop through each file, figuring out how many local syms,
3809 line numbers, etc. there are. Also, put out end symbol
3810 for the filename. */
3811
3812 for (file_ptr = first_file;
3813 file_ptr != (efdr_t *) 0;
3814 file_ptr = file_ptr->next_file)
3815 {
3816 SYMR *sym_start;
3817 SYMR *sym;
3818 SYMR *sym_end_p1;
3819 FDR *fd_ptr = file_ptr->orig_fdr;
3820
3821 cur_file_ptr = file_ptr;
3822
3823 /* Copy st_Static symbols from the original local symbol table if
3824 they did not get added to the new local symbol table.
3825 This happens with stabs-in-ecoff or if the source file is
3826 compiled without debugging. */
3827 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3828 sym_end_p1 = sym_start + fd_ptr->csym;
3829 for (sym = sym_start; sym < sym_end_p1; sym++)
3830 {
3831 if ((st_t) sym->st == st_Static)
3832 {
3833 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3834 Size_t len = strlen (str);
3835 shash_t *hash_ptr;
3836
3837 /* Ignore internal labels. */
3838 if (str[0] == '$' && str[1] == 'L')
3839 continue;
3840 hash_ptr = hash_string (str,
3841 (Ptrdiff_t) len,
3842 &file_ptr->shash_head[0],
3843 (symint_t *) 0);
3844 if (hash_ptr == (shash_t *) 0)
3845 {
3846 (void) add_local_symbol (str, str + len,
3847 (st_t) sym->st, (sc_t) sym->sc,
3848 (symint_t) sym->value,
3849 (symint_t) indexNil);
3850 }
3851 }
3852 }
3853 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3854 st_End, sc_Text,
3855 (symint_t) 0,
3856 (symint_t) 0);
3857
3858 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3859 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3860 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3861
3862 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3863 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3864 symbolic_header.isymMax += file_ptr->fdr.csym;
3865
3866 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3867 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3868 symbolic_header.iauxMax += file_ptr->fdr.caux;
3869
3870 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3871 file_ptr->fdr.issBase = symbolic_header.issMax;
3872 symbolic_header.issMax += file_ptr->fdr.cbSs;
3873 }
3874
3875 #ifndef ALIGN_SYMTABLE_OFFSET
3876 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3877 #endif
3878
3879 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3880 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3881 if (i > 0)
3882 {
3883 symbolic_header.cbLineOffset = file_offset;
3884 file_offset += i;
3885 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3886 }
3887
3888 i = symbolic_header.ioptMax; /* optimization symbols */
3889 if (((long) i) > 0)
3890 {
3891 symbolic_header.cbOptOffset = file_offset;
3892 file_offset += i * sizeof (OPTR);
3893 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3894 }
3895
3896 i = symbolic_header.idnMax; /* dense numbers */
3897 if (i > 0)
3898 {
3899 symbolic_header.cbDnOffset = file_offset;
3900 file_offset += i * sizeof (DNR);
3901 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3902 }
3903
3904 i = symbolic_header.ipdMax; /* procedure tables */
3905 if (i > 0)
3906 {
3907 symbolic_header.cbPdOffset = file_offset;
3908 file_offset += i * sizeof (PDR);
3909 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3910 }
3911
3912 i = symbolic_header.isymMax; /* local symbols */
3913 if (i > 0)
3914 {
3915 symbolic_header.cbSymOffset = file_offset;
3916 file_offset += i * sizeof (SYMR);
3917 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3918 }
3919
3920 i = symbolic_header.iauxMax; /* aux syms. */
3921 if (i > 0)
3922 {
3923 symbolic_header.cbAuxOffset = file_offset;
3924 file_offset += i * sizeof (TIR);
3925 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3926 }
3927
3928 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3929 if (i > 0)
3930 {
3931 symbolic_header.cbSsOffset = file_offset;
3932 file_offset += i;
3933 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3934 }
3935
3936 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3937 if (i > 0)
3938 {
3939 symbolic_header.cbSsExtOffset = file_offset;
3940 file_offset += i;
3941 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3942 }
3943
3944 i = symbolic_header.ifdMax; /* file tables */
3945 if (i > 0)
3946 {
3947 symbolic_header.cbFdOffset = file_offset;
3948 file_offset += i * sizeof (FDR);
3949 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3950 }
3951
3952 i = symbolic_header.crfd; /* relative file descriptors */
3953 if (i > 0)
3954 {
3955 symbolic_header.cbRfdOffset = file_offset;
3956 file_offset += i * sizeof (symint_t);
3957 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3958 }
3959
3960 i = symbolic_header.iextMax; /* external symbols */
3961 if (i > 0)
3962 {
3963 symbolic_header.cbExtOffset = file_offset;
3964 file_offset += i * sizeof (EXTR);
3965 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3966 }
3967 }
3968
3969 \f
3970 /* Write out a varray at a given location. */
3971
3972 STATIC void
3973 write_varray (varray_t *vp, /* virtual array */
3974 off_t offset, /* offset to write varray to */
3975 const char *str) /* string to print out when tracing */
3976 {
3977 int num_write, sys_write;
3978 vlinks_t *ptr;
3979
3980 if (vp->num_allocated == 0)
3981 return;
3982
3983 if (debug)
3984 fprintf (stderr, "\twarray\tvp = " HOST_PTR_PRINTF
3985 ", offset = %7lu, size = %7lu, %s\n",
3986 (void *) vp, (unsigned long) offset,
3987 vp->num_allocated * vp->object_size, str);
3988
3989 if (file_offset != (unsigned long) offset
3990 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
3991 pfatal_with_name (object_name);
3992
3993 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
3994 {
3995 num_write = (ptr->next == (vlinks_t *) 0)
3996 ? vp->objects_last_page * vp->object_size
3997 : vp->objects_per_page * vp->object_size;
3998
3999 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4000 if (sys_write <= 0)
4001 pfatal_with_name (object_name);
4002
4003 else if (sys_write != num_write)
4004 fatal ("wrote %d bytes to %s, system returned %d",
4005 num_write,
4006 object_name,
4007 sys_write);
4008
4009 file_offset += num_write;
4010 }
4011 }
4012
4013 \f
4014 /* Write out the symbol table in the object file. */
4015
4016 STATIC void
4017 write_object (void)
4018 {
4019 int sys_write;
4020 efdr_t *file_ptr;
4021 off_t offset;
4022
4023 if (debug)
4024 fprintf (stderr, "\n\twrite\tvp = " HOST_PTR_PRINTF
4025 ", offset = %7u, size = %7lu, %s\n",
4026 (void *) &symbolic_header, 0,
4027 (unsigned long) sizeof (symbolic_header), "symbolic header");
4028
4029 sys_write = fwrite (&symbolic_header,
4030 1,
4031 sizeof (symbolic_header),
4032 object_stream);
4033
4034 if (sys_write < 0)
4035 pfatal_with_name (object_name);
4036
4037 else if (sys_write != sizeof (symbolic_header))
4038 fatal ("wrote %d bytes to %s, system returned %d",
4039 (int) sizeof (symbolic_header),
4040 object_name,
4041 sys_write);
4042
4043
4044 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4045
4046 if (symbolic_header.cbLine > 0) /* line numbers */
4047 {
4048 long sys_write;
4049
4050 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4051 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4052 pfatal_with_name (object_name);
4053
4054 if (debug)
4055 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4056 ", offset = %7lu, size = %7lu, %s\n",
4057 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4058 (long) symbolic_header.cbLine, "Line numbers");
4059
4060 sys_write = fwrite (orig_linenum,
4061 1,
4062 symbolic_header.cbLine,
4063 object_stream);
4064
4065 if (sys_write <= 0)
4066 pfatal_with_name (object_name);
4067
4068 else if (sys_write != symbolic_header.cbLine)
4069 fatal ("wrote %ld bytes to %s, system returned %ld",
4070 (long) symbolic_header.cbLine,
4071 object_name,
4072 sys_write);
4073
4074 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4075 }
4076
4077 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4078 {
4079 long sys_write;
4080 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4081
4082 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4083 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4084 pfatal_with_name (object_name);
4085
4086 if (debug)
4087 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4088 ", offset = %7lu, size = %7lu, %s\n",
4089 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4090 num_write, "Optimizer symbols");
4091
4092 sys_write = fwrite (orig_opt_syms,
4093 1,
4094 num_write,
4095 object_stream);
4096
4097 if (sys_write <= 0)
4098 pfatal_with_name (object_name);
4099
4100 else if (sys_write != num_write)
4101 fatal ("wrote %ld bytes to %s, system returned %ld",
4102 num_write,
4103 object_name,
4104 sys_write);
4105
4106 file_offset = symbolic_header.cbOptOffset + num_write;
4107 }
4108
4109 if (symbolic_header.idnMax > 0) /* dense numbers */
4110 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4111
4112 if (symbolic_header.ipdMax > 0) /* procedure tables */
4113 {
4114 offset = symbolic_header.cbPdOffset;
4115 for (file_ptr = first_file;
4116 file_ptr != (efdr_t *) 0;
4117 file_ptr = file_ptr->next_file)
4118 {
4119 write_varray (&file_ptr->procs, offset, "Procedure tables");
4120 offset = file_offset;
4121 }
4122 }
4123
4124 if (symbolic_header.isymMax > 0) /* local symbols */
4125 {
4126 offset = symbolic_header.cbSymOffset;
4127 for (file_ptr = first_file;
4128 file_ptr != (efdr_t *) 0;
4129 file_ptr = file_ptr->next_file)
4130 {
4131 write_varray (&file_ptr->symbols, offset, "Local symbols");
4132 offset = file_offset;
4133 }
4134 }
4135
4136 if (symbolic_header.iauxMax > 0) /* aux symbols */
4137 {
4138 offset = symbolic_header.cbAuxOffset;
4139 for (file_ptr = first_file;
4140 file_ptr != (efdr_t *) 0;
4141 file_ptr = file_ptr->next_file)
4142 {
4143 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4144 offset = file_offset;
4145 }
4146 }
4147
4148 if (symbolic_header.issMax > 0) /* local strings */
4149 {
4150 offset = symbolic_header.cbSsOffset;
4151 for (file_ptr = first_file;
4152 file_ptr != (efdr_t *) 0;
4153 file_ptr = file_ptr->next_file)
4154 {
4155 write_varray (&file_ptr->strings, offset, "Local strings");
4156 offset = file_offset;
4157 }
4158 }
4159
4160 if (symbolic_header.issExtMax > 0) /* external strings */
4161 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4162
4163 if (symbolic_header.ifdMax > 0) /* file tables */
4164 {
4165 offset = symbolic_header.cbFdOffset;
4166 if (file_offset != (unsigned long) offset
4167 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4168 pfatal_with_name (object_name);
4169
4170 file_offset = offset;
4171 for (file_ptr = first_file;
4172 file_ptr != (efdr_t *) 0;
4173 file_ptr = file_ptr->next_file)
4174 {
4175 if (debug)
4176 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4177 ", offset = %7lu, size = %7lu, %s\n",
4178 (void *) &file_ptr->fdr, file_offset,
4179 (unsigned long) sizeof (FDR), "File header");
4180
4181 sys_write = fwrite (&file_ptr->fdr,
4182 1,
4183 sizeof (FDR),
4184 object_stream);
4185
4186 if (sys_write < 0)
4187 pfatal_with_name (object_name);
4188
4189 else if (sys_write != sizeof (FDR))
4190 fatal ("wrote %d bytes to %s, system returned %d",
4191 (int) sizeof (FDR),
4192 object_name,
4193 sys_write);
4194
4195 file_offset = offset += sizeof (FDR);
4196 }
4197 }
4198
4199 if (symbolic_header.crfd > 0) /* relative file descriptors */
4200 {
4201 long sys_write;
4202 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4203
4204 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4205 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4206 pfatal_with_name (object_name);
4207
4208 if (debug)
4209 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4210 ", offset = %7lu, size = %7lu, %s\n",
4211 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4212 num_write, "Relative file descriptors");
4213
4214 sys_write = fwrite (orig_rfds,
4215 1,
4216 num_write,
4217 object_stream);
4218
4219 if (sys_write <= 0)
4220 pfatal_with_name (object_name);
4221
4222 else if (sys_write != (long) num_write)
4223 fatal ("wrote %lu bytes to %s, system returned %ld",
4224 num_write,
4225 object_name,
4226 sys_write);
4227
4228 file_offset = symbolic_header.cbRfdOffset + num_write;
4229 }
4230
4231 if (symbolic_header.issExtMax > 0) /* external symbols */
4232 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4233
4234 if (fclose (object_stream) != 0)
4235 pfatal_with_name (object_name);
4236 }
4237
4238 \f
4239 /* Read some bytes at a specified location, and return a pointer. */
4240
4241 STATIC page_t *
4242 read_seek (Size_t size, /* # bytes to read */
4243 off_t offset, /* offset to read at */
4244 const char *str) /* name for tracing */
4245 {
4246 page_t *ptr;
4247 long sys_read = 0;
4248
4249 if (size == 0) /* nothing to read */
4250 return (page_t *) 0;
4251
4252 if (debug)
4253 fprintf (stderr,
4254 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4255 (unsigned long) size, (unsigned long) offset, file_offset, str);
4256
4257 #ifndef MALLOC_CHECK
4258 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4259 #else
4260 ptr = xcalloc (1, size);
4261 #endif
4262
4263 /* If we need to seek, and the distance is nearby, just do some reads,
4264 to speed things up. */
4265 if (file_offset != (unsigned long) offset)
4266 {
4267 symint_t difference = offset - file_offset;
4268
4269 if (difference < 8)
4270 {
4271 char small_buffer[8];
4272
4273 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4274 if (sys_read <= 0)
4275 pfatal_with_name (obj_in_name);
4276
4277 if ((symint_t) sys_read != difference)
4278 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4279 (unsigned long) size,
4280 obj_in_name,
4281 sys_read);
4282 }
4283 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4284 pfatal_with_name (obj_in_name);
4285 }
4286
4287 sys_read = fread (ptr, 1, size, obj_in_stream);
4288 if (sys_read <= 0)
4289 pfatal_with_name (obj_in_name);
4290
4291 if (sys_read != (long) size)
4292 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4293 (unsigned long) size,
4294 obj_in_name,
4295 sys_read);
4296
4297 file_offset = offset + size;
4298
4299 if (file_offset > max_file_offset)
4300 max_file_offset = file_offset;
4301
4302 return ptr;
4303 }
4304
4305 \f
4306 /* Read the existing object file (and copy to the output object file
4307 if it is different from the input object file), and remove the old
4308 symbol table. */
4309
4310 STATIC void
4311 copy_object (void)
4312 {
4313 char buffer[ PAGE_SIZE ];
4314 int sys_read;
4315 int remaining;
4316 int num_write;
4317 int sys_write;
4318 int fd, es;
4319 int delete_ifd = 0;
4320 int *remap_file_number;
4321 struct stat stat_buf;
4322
4323 if (debug)
4324 fprintf (stderr, "\tcopy\n");
4325
4326 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4327 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4328 pfatal_with_name (obj_in_name);
4329
4330 sys_read = fread (&orig_file_header,
4331 1,
4332 sizeof (struct filehdr),
4333 obj_in_stream);
4334
4335 if (sys_read < 0)
4336 pfatal_with_name (obj_in_name);
4337
4338 else if (sys_read == 0 && feof (obj_in_stream))
4339 return; /* create a .T file sans file header */
4340
4341 else if (sys_read < (int) sizeof (struct filehdr))
4342 fatal ("wanted to read %d bytes from %s, system returned %d",
4343 (int) sizeof (struct filehdr),
4344 obj_in_name,
4345 sys_read);
4346
4347
4348 if (orig_file_header.f_nsyms != sizeof (HDRR))
4349 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4350 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4351
4352
4353 /* Read in the current symbolic header. */
4354 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4355 pfatal_with_name (input_name);
4356
4357 sys_read = fread (&orig_sym_hdr,
4358 1,
4359 sizeof (orig_sym_hdr),
4360 obj_in_stream);
4361
4362 if (sys_read < 0)
4363 pfatal_with_name (object_name);
4364
4365 else if (sys_read < (int) sizeof (struct filehdr))
4366 fatal ("wanted to read %d bytes from %s, system returned %d",
4367 (int) sizeof (struct filehdr),
4368 obj_in_name,
4369 sys_read);
4370
4371
4372 /* Read in each of the sections if they exist in the object file.
4373 We read things in in the order the mips assembler creates the
4374 sections, so in theory no extra seeks are done.
4375
4376 For simplicity sake, round each read up to a page boundary,
4377 we may want to revisit this later.... */
4378
4379 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4380
4381 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4382 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4383 orig_sym_hdr.cbLineOffset,
4384 "Line numbers");
4385
4386 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4387 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4388 orig_sym_hdr.cbPdOffset,
4389 "Procedure tables");
4390
4391 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4392 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4393 orig_sym_hdr.cbSymOffset,
4394 "Local symbols");
4395
4396 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4397 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4398 orig_sym_hdr.cbAuxOffset,
4399 "Aux. symbols");
4400
4401 if (orig_sym_hdr.issMax > 0) /* local strings */
4402 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4403 orig_sym_hdr.cbSsOffset,
4404 "Local strings");
4405
4406 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4407 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4408 orig_sym_hdr.cbSsExtOffset,
4409 "External strings");
4410
4411 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4412 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4413 orig_sym_hdr.cbFdOffset,
4414 "File tables");
4415
4416 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4417 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4418 orig_sym_hdr.cbRfdOffset,
4419 "Relative file descriptors");
4420
4421 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4422 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4423 orig_sym_hdr.cbExtOffset,
4424 "External symbols");
4425
4426 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4427 {
4428 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4429 orig_sym_hdr.cbDnOffset,
4430 "Dense numbers");
4431
4432 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4433 }
4434
4435 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4436 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4437 orig_sym_hdr.cbOptOffset,
4438 "Optimizer symbols");
4439
4440
4441
4442 /* Abort if the symbol table is not last. */
4443 if (max_file_offset != (unsigned long) stat_buf.st_size)
4444 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4445 max_file_offset,
4446 (long) stat_buf.st_size);
4447
4448
4449 /* If the first original file descriptor is a dummy which the assembler
4450 put out, but there are no symbols in it, skip it now. */
4451 if (orig_sym_hdr.ifdMax > 1
4452 && orig_files->csym == 2
4453 && orig_files->caux == 0)
4454 {
4455 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4456 char *suffix = strrchr (filename, '.');
4457
4458 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4459 delete_ifd = 1;
4460 }
4461
4462
4463 /* Create array to map original file numbers to the new file numbers
4464 (in case there are duplicate filenames, we collapse them into one
4465 file section, the MIPS assembler may or may not collapse them). */
4466
4467 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4468
4469 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4470 {
4471 FDR *fd_ptr = ORIG_FILES (fd);
4472 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4473
4474 /* file support itself. */
4475 add_file (filename, filename + strlen (filename));
4476 remap_file_number[fd] = cur_file_ptr->file_index;
4477 }
4478
4479 if (delete_ifd > 0) /* just in case */
4480 remap_file_number[0] = remap_file_number[1];
4481
4482
4483 /* Loop, adding each of the external symbols. These must be in
4484 order or otherwise we would have to change the relocation
4485 entries. We don't just call add_bytes, because we need to have
4486 the names put into the external hash table. We set the type to
4487 'void' for now, and parse_def will fill in the correct type if it
4488 is in the symbol table. We must add the external symbols before
4489 the locals, since the locals do lookups against the externals. */
4490
4491 if (debug)
4492 fprintf (stderr, "\tehash\n");
4493
4494 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4495 {
4496 EXTR *eptr = orig_ext_syms + es;
4497 int ifd = eptr->ifd;
4498
4499 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4500 ? remap_file_number[ ifd ] : ifd );
4501 }
4502
4503
4504 /* For each of the files in the object file, copy the symbols, and such
4505 into the varrays for the new object file. */
4506
4507 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4508 {
4509 FDR *fd_ptr = ORIG_FILES (fd);
4510 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4511 SYMR *sym_start;
4512 SYMR *sym;
4513 SYMR *sym_end_p1;
4514 PDR *proc_start;
4515 PDR *proc;
4516 PDR *proc_end_p1;
4517
4518 /* file support itself. */
4519 add_file (filename, filename + strlen (filename));
4520 cur_file_ptr->orig_fdr = fd_ptr;
4521
4522 /* Copy stuff that's just passed through (such as line #'s) */
4523 cur_file_ptr->fdr.adr = fd_ptr->adr;
4524 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4525 cur_file_ptr->fdr.cline = fd_ptr->cline;
4526 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4527 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4528 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4529 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4530 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4531 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4532 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4533
4534 if (debug)
4535 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4536
4537 /* For each of the static and global symbols defined, add them
4538 to the hash table of original symbols, so we can look up
4539 their values. */
4540
4541 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4542 sym_end_p1 = sym_start + fd_ptr->csym;
4543 for (sym = sym_start; sym < sym_end_p1; sym++)
4544 {
4545 switch ((st_t) sym->st)
4546 {
4547 default:
4548 break;
4549
4550 case st_Global:
4551 case st_Static:
4552 case st_Label:
4553 case st_Proc:
4554 case st_StaticProc:
4555 {
4556 auto symint_t hash_index;
4557 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4558 Size_t len = strlen (str);
4559 shash_t *shash_ptr = hash_string (str,
4560 (Ptrdiff_t) len,
4561 &orig_str_hash[0],
4562 &hash_index);
4563
4564 if (shash_ptr != (shash_t *) 0)
4565 error ("internal error, %s is already in original symbol table", str);
4566
4567 else
4568 {
4569 shash_ptr = allocate_shash ();
4570 shash_ptr->next = orig_str_hash[hash_index];
4571 orig_str_hash[hash_index] = shash_ptr;
4572
4573 shash_ptr->len = len;
4574 shash_ptr->indx = indexNil;
4575 shash_ptr->string = str;
4576 shash_ptr->sym_ptr = sym;
4577 }
4578 }
4579 break;
4580
4581 case st_End:
4582 if ((sc_t) sym->sc == sc_Text)
4583 {
4584 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4585
4586 if (*str != '\0')
4587 {
4588 Size_t len = strlen (str);
4589 shash_t *shash_ptr = hash_string (str,
4590 (Ptrdiff_t) len,
4591 &orig_str_hash[0],
4592 (symint_t *) 0);
4593
4594 if (shash_ptr != (shash_t *) 0)
4595 shash_ptr->end_ptr = sym;
4596 }
4597 }
4598 break;
4599
4600 }
4601 }
4602
4603 if (debug)
4604 {
4605 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4606 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4607 }
4608
4609 /* Go through each of the procedures in this file, and add the
4610 procedure pointer to the hash entry for the given name. */
4611
4612 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4613 proc_end_p1 = proc_start + fd_ptr->cpd;
4614 for (proc = proc_start; proc < proc_end_p1; proc++)
4615 {
4616 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4617 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4618 Size_t len = strlen (str);
4619 shash_t *shash_ptr = hash_string (str,
4620 (Ptrdiff_t) len,
4621 &orig_str_hash[0],
4622 (symint_t *) 0);
4623
4624 if (shash_ptr == (shash_t *) 0)
4625 error ("internal error, function %s is not in original symbol table", str);
4626
4627 else
4628 shash_ptr->proc_ptr = proc;
4629 }
4630
4631 if (debug)
4632 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4633
4634 }
4635 cur_file_ptr = first_file;
4636
4637
4638 /* Copy all of the object file up to the symbol table. Originally
4639 we were going to use ftruncate, but that doesn't seem to work
4640 on Ultrix 3.1.... */
4641
4642 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4643 pfatal_with_name (obj_in_name);
4644
4645 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4646 pfatal_with_name (object_name);
4647
4648 for (remaining = orig_file_header.f_symptr;
4649 remaining > 0;
4650 remaining -= num_write)
4651 {
4652 num_write
4653 = (remaining <= (int) sizeof (buffer))
4654 ? remaining : (int) sizeof (buffer);
4655 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4656 if (sys_read <= 0)
4657 pfatal_with_name (obj_in_name);
4658
4659 else if (sys_read != num_write)
4660 fatal ("wanted to read %d bytes from %s, system returned %d",
4661 num_write,
4662 obj_in_name,
4663 sys_read);
4664
4665 sys_write = fwrite (buffer, 1, num_write, object_stream);
4666 if (sys_write <= 0)
4667 pfatal_with_name (object_name);
4668
4669 else if (sys_write != num_write)
4670 fatal ("wrote %d bytes to %s, system returned %d",
4671 num_write,
4672 object_name,
4673 sys_write);
4674 }
4675 }
4676
4677 \f
4678 /* Ye olde main program. */
4679
4680 extern int main (int, char **);
4681
4682 int
4683 main (int argc, char **argv)
4684 {
4685 int iflag = 0;
4686 char *p = strrchr (argv[0], '/');
4687 char *num_end;
4688 int option;
4689 int i;
4690
4691 progname = (p != 0) ? p+1 : argv[0];
4692
4693 (void) signal (SIGSEGV, catch_signal);
4694 (void) signal (SIGBUS, catch_signal);
4695 (void) signal (SIGABRT, catch_signal);
4696
4697 #if !defined(__SABER__) && !defined(lint)
4698 if (sizeof (efdr_t) > PAGE_USIZE)
4699 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4700 (int) sizeof (efdr_t),
4701 (int) PAGE_USIZE);
4702
4703 if (sizeof (page_t) != PAGE_USIZE)
4704 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4705 (int) sizeof (page_t),
4706 (int) PAGE_USIZE);
4707
4708 #endif
4709
4710 alloc_counts[ alloc_type_none ].alloc_name = "none";
4711 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4712 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4713 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4714 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4715 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4716 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4717 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4718 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4719
4720 int_type_info = type_info_init;
4721 int_type_info.basic_type = bt_Int;
4722
4723 void_type_info = type_info_init;
4724 void_type_info.basic_type = bt_Void;
4725
4726 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4727 switch (option)
4728 {
4729 default:
4730 had_errors++;
4731 break;
4732
4733 case 'd':
4734 debug = strtol (optarg, &num_end, 0);
4735 if ((unsigned) debug > 4 || num_end == optarg)
4736 had_errors++;
4737
4738 break;
4739
4740 case 'I':
4741 if (rename_output || obj_in_name != (char *) 0)
4742 had_errors++;
4743 else
4744 rename_output = 1;
4745
4746 /* Fall through to 'i' case. */
4747
4748 case 'i':
4749 if (obj_in_name == (char *) 0)
4750 {
4751 obj_in_name = optarg;
4752 iflag++;
4753 }
4754 else
4755 had_errors++;
4756 break;
4757
4758 case 'o':
4759 if (object_name == (char *) 0)
4760 object_name = optarg;
4761 else
4762 had_errors++;
4763 break;
4764
4765 case 'v':
4766 verbose++;
4767 break;
4768
4769 case 'V':
4770 version++;
4771 break;
4772 }
4773
4774 if (version)
4775 {
4776 printf (_("mips-tfile (GCC) %s\n"), version_string);
4777 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"), stdout);
4778 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4779 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4780 stdout);
4781 exit (0);
4782 }
4783
4784 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4785 obj_in_name = argv[--argc];
4786
4787 if (object_name == (char *) 0 && optind <= argc - 2)
4788 object_name = argv[--argc];
4789
4790 /* If there is an output name, but no input name use
4791 the same file for both, deleting the name between
4792 opening it for input and opening it for output. */
4793 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4794 {
4795 obj_in_name = object_name;
4796 delete_input = 1;
4797 }
4798
4799 if (optind != argc - 1)
4800 had_errors++;
4801
4802 if (verbose || had_errors)
4803 {
4804 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4805 #ifdef TARGET_VERSION
4806 TARGET_VERSION;
4807 #endif
4808 fputc ('\n', stderr);
4809 }
4810
4811 if (object_name == (char *) 0 || had_errors)
4812 {
4813 fprintf (stderr, _("Calling Sequence:\n"));
4814 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4815 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4816 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4817 fprintf (stderr, "\n");
4818 fprintf (stderr, _("Debug levels are:\n"));
4819 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4820 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4821 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4822 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4823 return 1;
4824 }
4825
4826 if (obj_in_name == (char *) 0)
4827 obj_in_name = object_name;
4828
4829 if (rename_output && rename (object_name, obj_in_name) != 0)
4830 {
4831 char *buffer = (char *) allocate_multiple_pages (4);
4832 int len;
4833 int len2;
4834 int in_fd;
4835 int out_fd;
4836
4837 /* Rename failed, copy input file */
4838 in_fd = open (object_name, O_RDONLY, 0666);
4839 if (in_fd < 0)
4840 pfatal_with_name (object_name);
4841
4842 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4843 if (out_fd < 0)
4844 pfatal_with_name (obj_in_name);
4845
4846 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4847 {
4848 len2 = write (out_fd, buffer, len);
4849 if (len2 < 0)
4850 pfatal_with_name (object_name);
4851
4852 if (len != len2)
4853 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4854 }
4855
4856 free_multiple_pages ((page_t *) buffer, 4);
4857
4858 if (len < 0)
4859 pfatal_with_name (object_name);
4860
4861 if (close (in_fd) < 0)
4862 pfatal_with_name (object_name);
4863
4864 if (close (out_fd) < 0)
4865 pfatal_with_name (obj_in_name);
4866 }
4867
4868 /* Must open input before output, since the output may be the same file, and
4869 we need to get the input handle before truncating it. */
4870 obj_in_stream = fopen (obj_in_name, "r");
4871 if (obj_in_stream == (FILE *) 0)
4872 pfatal_with_name (obj_in_name);
4873
4874 if (delete_input && unlink (obj_in_name) != 0)
4875 pfatal_with_name (obj_in_name);
4876
4877 object_stream = fopen (object_name, "w");
4878 if (object_stream == (FILE *) 0)
4879 pfatal_with_name (object_name);
4880
4881 if (strcmp (argv[optind], "-") != 0)
4882 {
4883 input_name = argv[optind];
4884 if (freopen (argv[optind], "r", stdin) != stdin)
4885 pfatal_with_name (argv[optind]);
4886 }
4887
4888 copy_object (); /* scan & copy object file */
4889 parse_input (); /* scan all of input */
4890
4891 update_headers (); /* write out tfile */
4892 write_object ();
4893
4894 if (debug)
4895 {
4896 fprintf (stderr, "\n\tAllocation summary:\n\n");
4897 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4898 if (alloc_counts[i].total_alloc)
4899 {
4900 fprintf (stderr,
4901 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4902 alloc_counts[i].alloc_name,
4903 alloc_counts[i].total_alloc,
4904 alloc_counts[i].total_free,
4905 alloc_counts[i].total_pages);
4906 }
4907 }
4908
4909 return (had_errors) ? 1 : 0;
4910 }
4911
4912 \f
4913 /* Catch a signal and exit without dumping core. */
4914
4915 STATIC void
4916 catch_signal (int signum)
4917 {
4918 (void) signal (signum, SIG_DFL); /* just in case... */
4919 fatal ("%s", strsignal (signum));
4920 }
4921
4922 /* Print a fatal error message. NAME is the text.
4923 Also include a system error message based on `errno'. */
4924
4925 void
4926 pfatal_with_name (const char *msg)
4927 {
4928 int save_errno = errno; /* just in case.... */
4929 if (line_number > 0)
4930 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4931 else
4932 fprintf (stderr, "%s:", progname);
4933
4934 errno = save_errno;
4935 if (errno == 0)
4936 fprintf (stderr, "[errno = 0] %s\n", msg);
4937 else
4938 perror (msg);
4939
4940 exit (1);
4941 }
4942
4943 \f
4944 /* Procedure to abort with an out of bounds error message. It has
4945 type int, so it can be used with an ?: expression within the
4946 ORIG_xxx macros, but the function never returns. */
4947
4948 static int
4949 out_of_bounds (symint_t indx, /* index that is out of bounds */
4950 symint_t max, /* maximum index */
4951 const char *str, /* string to print out */
4952 int prog_line) /* line number within mips-tfile.c */
4953 {
4954 if (indx < max) /* just in case */
4955 return 0;
4956
4957 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4958 progname, input_name, line_number, indx, str, max, prog_line);
4959
4960 exit (1);
4961 return 0; /* turn off warning messages */
4962 }
4963
4964 \f
4965 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4966 like sbrk's behind its back (or sbrk isn't available). If we use
4967 sbrk, we assume it gives us zeroed pages. */
4968
4969 #ifndef MALLOC_CHECK
4970 #ifdef USE_MALLOC
4971
4972 STATIC page_t *
4973 allocate_cluster (Size_t npages)
4974 {
4975 page_t *value = xcalloc (npages, PAGE_USIZE);
4976
4977 if (debug > 3)
4978 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4979
4980 return value;
4981 }
4982
4983 #else /* USE_MALLOC */
4984
4985 STATIC page_t *
4986 allocate_cluster (Size_t npages)
4987 {
4988 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4989 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4990
4991 if (offset != 0) /* align to a page boundary */
4992 {
4993 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
4994 pfatal_with_name ("allocate_cluster");
4995
4996 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
4997 }
4998
4999 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5000 pfatal_with_name ("allocate_cluster");
5001
5002 if (debug > 3)
5003 fprintf (stderr, "\talloc\tnpages = %lu, value = " HOST_PTR_PRINTF "\n",
5004 (unsigned long) npages, (void *) ptr);
5005
5006 return ptr;
5007 }
5008
5009 #endif /* USE_MALLOC */
5010
5011
5012 static page_t *cluster_ptr = NULL;
5013 static unsigned pages_left = 0;
5014
5015 #endif /* MALLOC_CHECK */
5016
5017
5018 /* Allocate some pages (which is initialized to 0). */
5019
5020 STATIC page_t *
5021 allocate_multiple_pages (Size_t npages)
5022 {
5023 #ifndef MALLOC_CHECK
5024 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5025 {
5026 pages_left = MAX_CLUSTER_PAGES;
5027 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5028 }
5029
5030 if (npages <= pages_left)
5031 {
5032 page_t *ptr = cluster_ptr;
5033 cluster_ptr += npages;
5034 pages_left -= npages;
5035 return ptr;
5036 }
5037
5038 return allocate_cluster (npages);
5039
5040 #else /* MALLOC_CHECK */
5041 return xcalloc (npages, PAGE_SIZE);
5042
5043 #endif /* MALLOC_CHECK */
5044 }
5045
5046
5047 /* Release some pages. */
5048
5049 STATIC void
5050 free_multiple_pages (page_t *page_ptr, Size_t npages)
5051 {
5052 #ifndef MALLOC_CHECK
5053 if (pages_left == 0)
5054 {
5055 cluster_ptr = page_ptr;
5056 pages_left = npages;
5057 }
5058
5059 else if ((page_ptr + npages) == cluster_ptr)
5060 {
5061 cluster_ptr -= npages;
5062 pages_left += npages;
5063 }
5064
5065 /* otherwise the page is not freed. If more than call is
5066 done, we probably should worry about it, but at present,
5067 the free pages is done right after an allocate. */
5068
5069 #else /* MALLOC_CHECK */
5070 free (page_ptr);
5071
5072 #endif /* MALLOC_CHECK */
5073 }
5074
5075
5076 /* Allocate one page (which is initialized to 0). */
5077
5078 STATIC page_t *
5079 allocate_page (void)
5080 {
5081 #ifndef MALLOC_CHECK
5082 if (pages_left == 0)
5083 {
5084 pages_left = MAX_CLUSTER_PAGES;
5085 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5086 }
5087
5088 pages_left--;
5089 return cluster_ptr++;
5090
5091 #else /* MALLOC_CHECK */
5092 return xcalloc (1, PAGE_SIZE);
5093
5094 #endif /* MALLOC_CHECK */
5095 }
5096
5097 \f
5098 /* Allocate scoping information. */
5099
5100 STATIC scope_t *
5101 allocate_scope (void)
5102 {
5103 scope_t *ptr;
5104 static scope_t initial_scope;
5105
5106 #ifndef MALLOC_CHECK
5107 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5108 if (ptr != (scope_t *) 0)
5109 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5110
5111 else
5112 {
5113 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5114 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5115
5116 if (unallocated == 0)
5117 {
5118 unallocated = PAGE_SIZE / sizeof (scope_t);
5119 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5120 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5121 }
5122
5123 ptr = &cur_page->scope[ --unallocated ];
5124 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5125 }
5126
5127 #else
5128 ptr = xmalloc (sizeof (scope_t));
5129
5130 #endif
5131
5132 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5133 *ptr = initial_scope;
5134 return ptr;
5135 }
5136
5137 /* Free scoping information. */
5138
5139 STATIC void
5140 free_scope (scope_t *ptr)
5141 {
5142 alloc_counts[ (int) alloc_type_scope ].total_free++;
5143
5144 #ifndef MALLOC_CHECK
5145 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5146 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5147
5148 #else
5149 free (ptr);
5150 #endif
5151
5152 }
5153
5154 \f
5155 /* Allocate links for pages in a virtual array. */
5156
5157 STATIC vlinks_t *
5158 allocate_vlinks (void)
5159 {
5160 vlinks_t *ptr;
5161 static vlinks_t initial_vlinks;
5162
5163 #ifndef MALLOC_CHECK
5164 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5165 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5166
5167 if (unallocated == 0)
5168 {
5169 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5170 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5171 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5172 }
5173
5174 ptr = &cur_page->vlinks[ --unallocated ];
5175 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5176
5177 #else
5178 ptr = xmalloc (sizeof (vlinks_t));
5179
5180 #endif
5181
5182 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5183 *ptr = initial_vlinks;
5184 return ptr;
5185 }
5186
5187 \f
5188 /* Allocate string hash buckets. */
5189
5190 STATIC shash_t *
5191 allocate_shash (void)
5192 {
5193 shash_t *ptr;
5194 static shash_t initial_shash;
5195
5196 #ifndef MALLOC_CHECK
5197 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5198 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5199
5200 if (unallocated == 0)
5201 {
5202 unallocated = PAGE_SIZE / sizeof (shash_t);
5203 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5204 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5205 }
5206
5207 ptr = &cur_page->shash[ --unallocated ];
5208 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5209
5210 #else
5211 ptr = xmalloc (sizeof (shash_t));
5212
5213 #endif
5214
5215 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5216 *ptr = initial_shash;
5217 return ptr;
5218 }
5219
5220 \f
5221 /* Allocate type hash buckets. */
5222
5223 STATIC thash_t *
5224 allocate_thash (void)
5225 {
5226 thash_t *ptr;
5227 static thash_t initial_thash;
5228
5229 #ifndef MALLOC_CHECK
5230 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5231 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5232
5233 if (unallocated == 0)
5234 {
5235 unallocated = PAGE_SIZE / sizeof (thash_t);
5236 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5237 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5238 }
5239
5240 ptr = &cur_page->thash[ --unallocated ];
5241 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5242
5243 #else
5244 ptr = xmalloc (sizeof (thash_t));
5245
5246 #endif
5247
5248 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5249 *ptr = initial_thash;
5250 return ptr;
5251 }
5252
5253 \f
5254 /* Allocate structure, union, or enum tag information. */
5255
5256 STATIC tag_t *
5257 allocate_tag (void)
5258 {
5259 tag_t *ptr;
5260 static tag_t initial_tag;
5261
5262 #ifndef MALLOC_CHECK
5263 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5264 if (ptr != (tag_t *) 0)
5265 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5266
5267 else
5268 {
5269 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5270 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5271
5272 if (unallocated == 0)
5273 {
5274 unallocated = PAGE_SIZE / sizeof (tag_t);
5275 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5276 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5277 }
5278
5279 ptr = &cur_page->tag[ --unallocated ];
5280 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5281 }
5282
5283 #else
5284 ptr = xmalloc (sizeof (tag_t));
5285
5286 #endif
5287
5288 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5289 *ptr = initial_tag;
5290 return ptr;
5291 }
5292
5293 /* Free scoping information. */
5294
5295 STATIC void
5296 free_tag (tag_t *ptr)
5297 {
5298 alloc_counts[ (int) alloc_type_tag ].total_free++;
5299
5300 #ifndef MALLOC_CHECK
5301 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5302 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5303
5304 #else
5305 free (ptr);
5306 #endif
5307
5308 }
5309
5310 \f
5311 /* Allocate forward reference to a yet unknown tag. */
5312
5313 STATIC forward_t *
5314 allocate_forward (void)
5315 {
5316 forward_t *ptr;
5317 static forward_t initial_forward;
5318
5319 #ifndef MALLOC_CHECK
5320 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5321 if (ptr != (forward_t *) 0)
5322 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5323
5324 else
5325 {
5326 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5327 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5328
5329 if (unallocated == 0)
5330 {
5331 unallocated = PAGE_SIZE / sizeof (forward_t);
5332 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5333 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5334 }
5335
5336 ptr = &cur_page->forward[ --unallocated ];
5337 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5338 }
5339
5340 #else
5341 ptr = xmalloc (sizeof (forward_t));
5342
5343 #endif
5344
5345 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5346 *ptr = initial_forward;
5347 return ptr;
5348 }
5349
5350 /* Free scoping information. */
5351
5352 STATIC void
5353 free_forward (forward_t *ptr)
5354 {
5355 alloc_counts[ (int) alloc_type_forward ].total_free++;
5356
5357 #ifndef MALLOC_CHECK
5358 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5359 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5360
5361 #else
5362 free (ptr);
5363 #endif
5364
5365 }
5366
5367 \f
5368 /* Allocate head of type hash list. */
5369
5370 STATIC thead_t *
5371 allocate_thead (void)
5372 {
5373 thead_t *ptr;
5374 static thead_t initial_thead;
5375
5376 #ifndef MALLOC_CHECK
5377 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5378 if (ptr != (thead_t *) 0)
5379 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5380
5381 else
5382 {
5383 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5384 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5385
5386 if (unallocated == 0)
5387 {
5388 unallocated = PAGE_SIZE / sizeof (thead_t);
5389 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5390 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5391 }
5392
5393 ptr = &cur_page->thead[ --unallocated ];
5394 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5395 }
5396
5397 #else
5398 ptr = xmalloc (sizeof (thead_t));
5399
5400 #endif
5401
5402 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5403 *ptr = initial_thead;
5404 return ptr;
5405 }
5406
5407 /* Free scoping information. */
5408
5409 STATIC void
5410 free_thead (thead_t *ptr)
5411 {
5412 alloc_counts[ (int) alloc_type_thead ].total_free++;
5413
5414 #ifndef MALLOC_CHECK
5415 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5416 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5417
5418 #else
5419 free (ptr);
5420 #endif
5421
5422 }
5423
5424 #endif /* MIPS_DEBUGGING_INFO */
5425
5426 \f
5427 /* Output an error message and exit. */
5428
5429 void
5430 fatal (const char *format, ...)
5431 {
5432 va_list ap;
5433
5434 va_start (ap, format);
5435
5436 if (line_number > 0)
5437 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5438 else
5439 fprintf (stderr, "%s:", progname);
5440
5441 vfprintf (stderr, format, ap);
5442 va_end (ap);
5443 fprintf (stderr, "\n");
5444 if (line_number > 0)
5445 fprintf (stderr, "line:\t%s\n", cur_line_start);
5446
5447 saber_stop ();
5448 exit (1);
5449 }
5450
5451 void
5452 error (const char *format, ...)
5453 {
5454 va_list ap;
5455
5456 va_start (ap, format);
5457
5458 if (line_number > 0)
5459 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5460 else
5461 fprintf (stderr, "%s:", progname);
5462
5463 vfprintf (stderr, format, ap);
5464 fprintf (stderr, "\n");
5465 if (line_number > 0)
5466 fprintf (stderr, "line:\t%s\n", cur_line_start);
5467
5468 had_errors++;
5469 va_end (ap);
5470
5471 saber_stop ();
5472 }
5473
5474 /* More 'friendly' abort that prints the line and file.
5475 config.h can #define abort fancy_abort if you like that sort of thing. */
5476
5477 void
5478 fancy_abort (void)
5479 {
5480 fatal ("internal abort");
5481 }
5482 \f
5483
5484 /* When `malloc.c' is compiled with `rcheck' defined,
5485 it calls this function to report clobberage. */
5486
5487 void
5488 botch (const char *s)
5489 {
5490 fatal ("%s", s);
5491 }
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