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* config/m32c/m32c.c (m32c_valid_pointer_mode): Remove stray debug
[official-gcc.git] / gcc / mips-tfile.c
blobd7d754f030cb95f2b19f9313d388b7858045d634
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, 2004, 2005 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, 51 Franklin Street, Fifth Floor, Boston, MA
24 02110-1301, 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 botch (const char *) ATTRIBUTE_NORETURN;
641
642 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
643 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
644 \f
645 #ifndef MIPS_DEBUGGING_INFO
646
647 static int line_number;
648 static int cur_line_start;
649 static int debug;
650 static int had_errors;
651 static const char *progname;
652 static const char *input_name;
653
654 int
655 main (void)
656 {
657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
658 exit (1);
659 }
660
661 #else /* MIPS_DEBUGGING defined */
662 \f
663 /* The local and global symbols have a field index, so undo any defines
664 of index -> strchr. */
665
666 #undef index
667
668 #include <signal.h>
669
670 #ifndef CROSS_COMPILE
671 #include <a.out.h>
672 #else
673 #include "mips/a.out.h"
674 #endif /* CROSS_COMPILE */
675
676 #include "gstab.h"
677
678 #define STAB_CODE_TYPE enum __stab_debug_code
679
680 #ifndef MALLOC_CHECK
681 #ifdef __SABER__
682 #define MALLOC_CHECK
683 #endif
684 #endif
685
686 #define IS_ASM_IDENT(ch) \
687 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
688
689 \f
690 /* Redefinition of storage classes as an enumeration for better
691 debugging. */
692
693 typedef enum sc {
694 sc_Nil = scNil, /* no storage class */
695 sc_Text = scText, /* text symbol */
696 sc_Data = scData, /* initialized data symbol */
697 sc_Bss = scBss, /* un-initialized data symbol */
698 sc_Register = scRegister, /* value of symbol is register number */
699 sc_Abs = scAbs, /* value of symbol is absolute */
700 sc_Undefined = scUndefined, /* who knows? */
701 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
702 sc_Bits = scBits, /* this is a bit field */
703 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
704 sc_RegImage = scRegImage, /* register value saved on stack */
705 sc_Info = scInfo, /* symbol contains debugger information */
706 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
707 sc_SData = scSData, /* load time only small data */
708 sc_SBss = scSBss, /* load time only small common */
709 sc_RData = scRData, /* load time only read only data */
710 sc_Var = scVar, /* Var parameter (fortran,pascal) */
711 sc_Common = scCommon, /* common variable */
712 sc_SCommon = scSCommon, /* small common */
713 sc_VarRegister = scVarRegister, /* Var parameter in a register */
714 sc_Variant = scVariant, /* Variant record */
715 sc_SUndefined = scSUndefined, /* small undefined(external) data */
716 sc_Init = scInit, /* .init section symbol */
717 sc_Max = scMax /* Max storage class+1 */
718 } sc_t;
719
720 /* Redefinition of symbol type. */
721
722 typedef enum st {
723 st_Nil = stNil, /* Nuthin' special */
724 st_Global = stGlobal, /* external symbol */
725 st_Static = stStatic, /* static */
726 st_Param = stParam, /* procedure argument */
727 st_Local = stLocal, /* local variable */
728 st_Label = stLabel, /* label */
729 st_Proc = stProc, /* " " Procedure */
730 st_Block = stBlock, /* beginning of block */
731 st_End = stEnd, /* end (of anything) */
732 st_Member = stMember, /* member (of anything - struct/union/enum */
733 st_Typedef = stTypedef, /* type definition */
734 st_File = stFile, /* file name */
735 st_RegReloc = stRegReloc, /* register relocation */
736 st_Forward = stForward, /* forwarding address */
737 st_StaticProc = stStaticProc, /* load time only static procs */
738 st_Constant = stConstant, /* const */
739 st_Str = stStr, /* string */
740 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */
741 st_Expr = stExpr, /* 2+2 vs. 4 */
742 st_Type = stType, /* post-coercion SER */
743 st_Max = stMax /* max type+1 */
744 } st_t;
745
746 /* Redefinition of type qualifiers. */
747
748 typedef enum tq {
749 tq_Nil = tqNil, /* bt is what you see */
750 tq_Ptr = tqPtr, /* pointer */
751 tq_Proc = tqProc, /* procedure */
752 tq_Array = tqArray, /* duh */
753 tq_Far = tqFar, /* longer addressing - 8086/8 land */
754 tq_Vol = tqVol, /* volatile */
755 tq_Max = tqMax /* Max type qualifier+1 */
756 } tq_t;
757
758 /* Redefinition of basic types. */
759
760 typedef enum bt {
761 bt_Nil = btNil, /* undefined */
762 bt_Adr = btAdr, /* address - integer same size as pointer */
763 bt_Char = btChar, /* character */
764 bt_UChar = btUChar, /* unsigned character */
765 bt_Short = btShort, /* short */
766 bt_UShort = btUShort, /* unsigned short */
767 bt_Int = btInt, /* int */
768 bt_UInt = btUInt, /* unsigned int */
769 bt_Long = btLong, /* long */
770 bt_ULong = btULong, /* unsigned long */
771 bt_Float = btFloat, /* float (real) */
772 bt_Double = btDouble, /* Double (real) */
773 bt_Struct = btStruct, /* Structure (Record) */
774 bt_Union = btUnion, /* Union (variant) */
775 bt_Enum = btEnum, /* Enumerated */
776 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
777 bt_Range = btRange, /* subrange of int */
778 bt_Set = btSet, /* pascal sets */
779 bt_Complex = btComplex, /* fortran complex */
780 bt_DComplex = btDComplex, /* fortran double complex */
781 bt_Indirect = btIndirect, /* forward or unnamed typedef */
782 bt_FixedDec = btFixedDec, /* Fixed Decimal */
783 bt_FloatDec = btFloatDec, /* Float Decimal */
784 bt_String = btString, /* Varying Length Character String */
785 bt_Bit = btBit, /* Aligned Bit String */
786 bt_Picture = btPicture, /* Picture */
787
788 #ifdef btVoid
789 bt_Void = btVoid, /* Void */
790 #else
791 #define bt_Void bt_Nil
792 #endif
793
794 bt_Max = btMax /* Max basic type+1 */
795 } bt_t;
796
797 \f
798
799 /* Basic COFF storage classes. */
800 enum coff_storage {
801 C_EFCN = -1,
802 C_NULL = 0,
803 C_AUTO = 1,
804 C_EXT = 2,
805 C_STAT = 3,
806 C_REG = 4,
807 C_EXTDEF = 5,
808 C_LABEL = 6,
809 C_ULABEL = 7,
810 C_MOS = 8,
811 C_ARG = 9,
812 C_STRTAG = 10,
813 C_MOU = 11,
814 C_UNTAG = 12,
815 C_TPDEF = 13,
816 C_USTATIC = 14,
817 C_ENTAG = 15,
818 C_MOE = 16,
819 C_REGPARM = 17,
820 C_FIELD = 18,
821 C_BLOCK = 100,
822 C_FCN = 101,
823 C_EOS = 102,
824 C_FILE = 103,
825 C_LINE = 104,
826 C_ALIAS = 105,
827 C_HIDDEN = 106,
828 C_MAX = 107
829 } coff_storage_t;
830
831 /* Regular COFF fundamental type. */
832 typedef enum coff_type {
833 T_NULL = 0,
834 T_ARG = 1,
835 T_CHAR = 2,
836 T_SHORT = 3,
837 T_INT = 4,
838 T_LONG = 5,
839 T_FLOAT = 6,
840 T_DOUBLE = 7,
841 T_STRUCT = 8,
842 T_UNION = 9,
843 T_ENUM = 10,
844 T_MOE = 11,
845 T_UCHAR = 12,
846 T_USHORT = 13,
847 T_UINT = 14,
848 T_ULONG = 15,
849 T_MAX = 16
850 } coff_type_t;
851
852 /* Regular COFF derived types. */
853 typedef enum coff_dt {
854 DT_NON = 0,
855 DT_PTR = 1,
856 DT_FCN = 2,
857 DT_ARY = 3,
858 DT_MAX = 4
859 } coff_dt_t;
860
861 #define N_BTMASK 017 /* bitmask to isolate basic type */
862 #define N_TMASK 003 /* bitmask to isolate derived type */
863 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
864 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
865 #define N_TQ 6 /* # of type qualifiers */
866
867 /* States for whether to hash type or not. */
868 typedef enum hash_state {
869 hash_no = 0, /* don't hash type */
870 hash_yes = 1, /* ok to hash type, or use previous hash */
871 hash_record = 2 /* ok to record hash, but don't use prev. */
872 } hash_state_t;
873
874
875 /* Types of different sized allocation requests. */
876 enum alloc_type {
877 alloc_type_none, /* dummy value */
878 alloc_type_scope, /* nested scopes linked list */
879 alloc_type_vlinks, /* glue linking pages in varray */
880 alloc_type_shash, /* string hash element */
881 alloc_type_thash, /* type hash element */
882 alloc_type_tag, /* struct/union/tag element */
883 alloc_type_forward, /* element to hold unknown tag */
884 alloc_type_thead, /* head of type hash list */
885 alloc_type_varray, /* general varray allocation */
886 alloc_type_last /* last+1 element for array bounds */
887 };
888
889 \f
890 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
891 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
892
893
894 /* Structures to provide n-number of virtual arrays, each of which can
895 grow linearly, and which are written in the object file as sequential
896 pages. On systems with a BSD malloc that define USE_MALLOC, the
897 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
898 adds its overhead, and rounds up to the next power of 2. Pages are
899 linked together via a linked list. */
900
901 #ifndef PAGE_SIZE
902 #define PAGE_SIZE 32768 /* size of varray pages */
903 #endif
904
905 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
906
907
908 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
909 #ifndef USE_MALLOC /* in one memory request */
910 #define MAX_CLUSTER_PAGES 64
911 #else
912 #define MAX_CLUSTER_PAGES 63
913 #endif
914 #endif
915
916
917 /* Linked list connecting separate page allocations. */
918 typedef struct vlinks {
919 struct vlinks *prev; /* previous set of pages */
920 struct vlinks *next; /* next set of pages */
921 union page *datum; /* start of page */
922 unsigned long start_index; /* starting index # of page */
923 } vlinks_t;
924
925
926 /* Virtual array header. */
927 typedef struct varray {
928 vlinks_t *first; /* first page link */
929 vlinks_t *last; /* last page link */
930 unsigned long num_allocated; /* # objects allocated */
931 unsigned short object_size; /* size in bytes of each object */
932 unsigned short objects_per_page; /* # objects that can fit on a page */
933 unsigned short objects_last_page; /* # objects allocated on last page */
934 } varray_t;
935
936 #ifndef MALLOC_CHECK
937 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
938 #else
939 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
940 #endif
941
942 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
943 (vlinks_t *) 0, /* first */ \
944 (vlinks_t *) 0, /* last */ \
945 0, /* num_allocated */ \
946 sizeof (type), /* object_size */ \
947 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
948 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
949 }
950
951 #define INITIALIZE_VARRAY(x,type) \
952 do { \
953 (x)->object_size = sizeof (type); \
954 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
955 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
956 } while (0)
957
958 /* Master type for indexes within the symbol table. */
959 typedef unsigned long symint_t;
960
961
962 /* Linked list support for nested scopes (file, block, structure, etc.). */
963 typedef struct scope {
964 struct scope *prev; /* previous scope level */
965 struct scope *free; /* free list pointer */
966 SYMR *lsym; /* pointer to local symbol node */
967 symint_t lnumber; /* lsym index */
968 st_t type; /* type of the node */
969 } scope_t;
970
971
972 /* Forward reference list for tags referenced, but not yet defined. */
973 typedef struct forward {
974 struct forward *next; /* next forward reference */
975 struct forward *free; /* free list pointer */
976 AUXU *ifd_ptr; /* pointer to store file index */
977 AUXU *index_ptr; /* pointer to store symbol index */
978 AUXU *type_ptr; /* pointer to munge type info */
979 } forward_t;
980
981
982 /* Linked list support for tags. The first tag in the list is always
983 the current tag for that block. */
984 typedef struct tag {
985 struct tag *free; /* free list pointer */
986 struct shash *hash_ptr; /* pointer to the hash table head */
987 struct tag *same_name; /* tag with same name in outer scope */
988 struct tag *same_block; /* next tag defined in the same block. */
989 struct forward *forward_ref; /* list of forward references */
990 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
991 symint_t ifd; /* file # tag defined in */
992 symint_t indx; /* index within file's local symbols */
993 } tag_t;
994
995
996 /* Head of a block's linked list of tags. */
997 typedef struct thead {
998 struct thead *prev; /* previous block */
999 struct thead *free; /* free list pointer */
1000 struct tag *first_tag; /* first tag in block defined */
1001 } thead_t;
1002
1003
1004 /* Union containing pointers to each the small structures which are freed up. */
1005 typedef union small_free {
1006 scope_t *f_scope; /* scope structure */
1007 thead_t *f_thead; /* tag head structure */
1008 tag_t *f_tag; /* tag element structure */
1009 forward_t *f_forward; /* forward tag reference */
1010 } small_free_t;
1011
1012
1013 /* String hash table support. The size of the hash table must fit
1014 within a page. */
1015
1016 #ifndef SHASH_SIZE
1017 #define SHASH_SIZE 1009
1018 #endif
1019
1020 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1021
1022 typedef struct shash {
1023 struct shash *next; /* next hash value */
1024 char *string; /* string we are hashing */
1025 symint_t len; /* string length */
1026 symint_t indx; /* index within string table */
1027 EXTR *esym_ptr; /* global symbol pointer */
1028 SYMR *sym_ptr; /* local symbol pointer */
1029 SYMR *end_ptr; /* symbol pointer to end block */
1030 tag_t *tag_ptr; /* tag pointer */
1031 PDR *proc_ptr; /* procedure descriptor pointer */
1032 } shash_t;
1033
1034
1035 /* Type hash table support. The size of the hash table must fit
1036 within a page with the other extended file descriptor information.
1037 Because unique types which are hashed are fewer in number than
1038 strings, we use a smaller hash value. */
1039
1040 #ifndef THASH_SIZE
1041 #define THASH_SIZE 113
1042 #endif
1043
1044 typedef struct thash {
1045 struct thash *next; /* next hash value */
1046 AUXU type; /* type we are hashing */
1047 symint_t indx; /* index within string table */
1048 } thash_t;
1049
1050
1051 /* Extended file descriptor that contains all of the support necessary
1052 to add things to each file separately. */
1053 typedef struct efdr {
1054 FDR fdr; /* File header to be written out */
1055 FDR *orig_fdr; /* original file header */
1056 char *name; /* filename */
1057 int name_len; /* length of the filename */
1058 symint_t void_type; /* aux. pointer to 'void' type */
1059 symint_t int_type; /* aux. pointer to 'int' type */
1060 scope_t *cur_scope; /* current nested scopes */
1061 symint_t file_index; /* current file number */
1062 int nested_scopes; /* # nested scopes */
1063 varray_t strings; /* local strings */
1064 varray_t symbols; /* local symbols */
1065 varray_t procs; /* procedures */
1066 varray_t aux_syms; /* auxiliary symbols */
1067 struct efdr *next_file; /* next file descriptor */
1068 /* string/type hash tables */
1069 shash_t **shash_head; /* string hash table */
1070 thash_t *thash_head[THASH_SIZE];
1071 } efdr_t;
1072
1073 /* Pre-initialized extended file structure. */
1074 static int init_file_initialized = 0;
1075 static efdr_t init_file;
1076
1077 static efdr_t *first_file; /* first file descriptor */
1078 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1079
1080
1081 /* Union of various things that are held in pages. */
1082 typedef union page {
1083 char byte [ PAGE_SIZE ];
1084 unsigned char ubyte [ PAGE_SIZE ];
1085 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1086 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1087 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1088 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1089 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1090 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1091 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1092 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1093 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1094 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1095 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1096 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1097 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1098 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1099 } page_t;
1100
1101
1102 /* Structure holding allocation information for small sized structures. */
1103 typedef struct alloc_info {
1104 const char *alloc_name; /* name of this allocation type (must be first) */
1105 page_t *cur_page; /* current page being allocated from */
1106 small_free_t free_list; /* current free list if any */
1107 int unallocated; /* number of elements unallocated on page */
1108 int total_alloc; /* total number of allocations */
1109 int total_free; /* total number of frees */
1110 int total_pages; /* total number of pages allocated */
1111 } alloc_info_t;
1112
1113 /* Type information collected together. */
1114 typedef struct type_info {
1115 bt_t basic_type; /* basic type */
1116 coff_type_t orig_type; /* original COFF-based type */
1117 int num_tq; /* # type qualifiers */
1118 int num_dims; /* # dimensions */
1119 int num_sizes; /* # sizes */
1120 int extra_sizes; /* # extra sizes not tied with dims */
1121 tag_t * tag_ptr; /* tag pointer */
1122 int bitfield; /* symbol is a bitfield */
1123 int unknown_tag; /* this is an unknown tag */
1124 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1125 symint_t dimensions [N_TQ]; /* dimensions for each array */
1126 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1127 struct/union/enum + bitfield size */
1128 } type_info_t;
1129
1130 /* Pre-initialized type_info struct. */
1131 static type_info_t type_info_init = {
1132 bt_Nil, /* basic type */
1133 T_NULL, /* original COFF-based type */
1134 0, /* # type qualifiers */
1135 0, /* # dimensions */
1136 0, /* # sizes */
1137 0, /* sizes not tied with dims */
1138 NULL, /* ptr to tag */
1139 0, /* bitfield */
1140 0, /* unknown tag */
1141 { /* type qualifiers */
1142 tq_Nil,
1143 tq_Nil,
1144 tq_Nil,
1145 tq_Nil,
1146 tq_Nil,
1147 tq_Nil,
1148 },
1149 { /* dimensions */
1150 0,
1151 0,
1152 0,
1153 0,
1154 0,
1155 0
1156 },
1157 { /* sizes */
1158 0,
1159 0,
1160 0,
1161 0,
1162 0,
1163 0,
1164 0,
1165 0,
1166 },
1167 };
1168
1169
1170 /* Global virtual arrays & hash table for external strings as well as
1171 for the tags table and global tables for file descriptors, and
1172 dense numbers. */
1173
1174 static varray_t file_desc = INIT_VARRAY (efdr_t);
1175 static varray_t dense_num = INIT_VARRAY (DNR);
1176 static varray_t tag_strings = INIT_VARRAY (char);
1177 static varray_t ext_strings = INIT_VARRAY (char);
1178 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1179
1180 static shash_t *orig_str_hash[SHASH_SIZE];
1181 static shash_t *ext_str_hash [SHASH_SIZE];
1182 static shash_t *tag_hash [SHASH_SIZE];
1183
1184 /* Static types for int and void. Also, remember the last function's
1185 type (which is set up when we encounter the declaration for the
1186 function, and used when the end block for the function is emitted. */
1187
1188 static type_info_t int_type_info;
1189 static type_info_t void_type_info;
1190 static type_info_t last_func_type_info;
1191 static EXTR *last_func_eptr;
1192
1193
1194 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1195 really should use bt_Void, but this causes the current ecoff GDB to
1196 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1197 2.0) doesn't understand it, even though the compiler generates it.
1198 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1199 suite, but for now go with what works. */
1200
1201 static const bt_t map_coff_types[ (int) T_MAX ] = {
1202 bt_Nil, /* T_NULL */
1203 bt_Nil, /* T_ARG */
1204 bt_Char, /* T_CHAR */
1205 bt_Short, /* T_SHORT */
1206 bt_Int, /* T_INT */
1207 bt_Long, /* T_LONG */
1208 bt_Float, /* T_FLOAT */
1209 bt_Double, /* T_DOUBLE */
1210 bt_Struct, /* T_STRUCT */
1211 bt_Union, /* T_UNION */
1212 bt_Enum, /* T_ENUM */
1213 bt_Enum, /* T_MOE */
1214 bt_UChar, /* T_UCHAR */
1215 bt_UShort, /* T_USHORT */
1216 bt_UInt, /* T_UINT */
1217 bt_ULong /* T_ULONG */
1218 };
1219
1220 /* Convert COFF storage class to ECOFF storage class. */
1221 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1222 sc_Nil, /* 0: C_NULL */
1223 sc_Abs, /* 1: C_AUTO auto var */
1224 sc_Undefined, /* 2: C_EXT external */
1225 sc_Data, /* 3: C_STAT static */
1226 sc_Register, /* 4: C_REG register */
1227 sc_Undefined, /* 5: C_EXTDEF ??? */
1228 sc_Text, /* 6: C_LABEL label */
1229 sc_Text, /* 7: C_ULABEL user label */
1230 sc_Info, /* 8: C_MOS member of struct */
1231 sc_Abs, /* 9: C_ARG argument */
1232 sc_Info, /* 10: C_STRTAG struct tag */
1233 sc_Info, /* 11: C_MOU member of union */
1234 sc_Info, /* 12: C_UNTAG union tag */
1235 sc_Info, /* 13: C_TPDEF typedef */
1236 sc_Data, /* 14: C_USTATIC ??? */
1237 sc_Info, /* 15: C_ENTAG enum tag */
1238 sc_Info, /* 16: C_MOE member of enum */
1239 sc_Register, /* 17: C_REGPARM register parameter */
1240 sc_Bits, /* 18; C_FIELD bitfield */
1241 sc_Nil, /* 19 */
1242 sc_Nil, /* 20 */
1243 sc_Nil, /* 21 */
1244 sc_Nil, /* 22 */
1245 sc_Nil, /* 23 */
1246 sc_Nil, /* 24 */
1247 sc_Nil, /* 25 */
1248 sc_Nil, /* 26 */
1249 sc_Nil, /* 27 */
1250 sc_Nil, /* 28 */
1251 sc_Nil, /* 29 */
1252 sc_Nil, /* 30 */
1253 sc_Nil, /* 31 */
1254 sc_Nil, /* 32 */
1255 sc_Nil, /* 33 */
1256 sc_Nil, /* 34 */
1257 sc_Nil, /* 35 */
1258 sc_Nil, /* 36 */
1259 sc_Nil, /* 37 */
1260 sc_Nil, /* 38 */
1261 sc_Nil, /* 39 */
1262 sc_Nil, /* 40 */
1263 sc_Nil, /* 41 */
1264 sc_Nil, /* 42 */
1265 sc_Nil, /* 43 */
1266 sc_Nil, /* 44 */
1267 sc_Nil, /* 45 */
1268 sc_Nil, /* 46 */
1269 sc_Nil, /* 47 */
1270 sc_Nil, /* 48 */
1271 sc_Nil, /* 49 */
1272 sc_Nil, /* 50 */
1273 sc_Nil, /* 51 */
1274 sc_Nil, /* 52 */
1275 sc_Nil, /* 53 */
1276 sc_Nil, /* 54 */
1277 sc_Nil, /* 55 */
1278 sc_Nil, /* 56 */
1279 sc_Nil, /* 57 */
1280 sc_Nil, /* 58 */
1281 sc_Nil, /* 59 */
1282 sc_Nil, /* 60 */
1283 sc_Nil, /* 61 */
1284 sc_Nil, /* 62 */
1285 sc_Nil, /* 63 */
1286 sc_Nil, /* 64 */
1287 sc_Nil, /* 65 */
1288 sc_Nil, /* 66 */
1289 sc_Nil, /* 67 */
1290 sc_Nil, /* 68 */
1291 sc_Nil, /* 69 */
1292 sc_Nil, /* 70 */
1293 sc_Nil, /* 71 */
1294 sc_Nil, /* 72 */
1295 sc_Nil, /* 73 */
1296 sc_Nil, /* 74 */
1297 sc_Nil, /* 75 */
1298 sc_Nil, /* 76 */
1299 sc_Nil, /* 77 */
1300 sc_Nil, /* 78 */
1301 sc_Nil, /* 79 */
1302 sc_Nil, /* 80 */
1303 sc_Nil, /* 81 */
1304 sc_Nil, /* 82 */
1305 sc_Nil, /* 83 */
1306 sc_Nil, /* 84 */
1307 sc_Nil, /* 85 */
1308 sc_Nil, /* 86 */
1309 sc_Nil, /* 87 */
1310 sc_Nil, /* 88 */
1311 sc_Nil, /* 89 */
1312 sc_Nil, /* 90 */
1313 sc_Nil, /* 91 */
1314 sc_Nil, /* 92 */
1315 sc_Nil, /* 93 */
1316 sc_Nil, /* 94 */
1317 sc_Nil, /* 95 */
1318 sc_Nil, /* 96 */
1319 sc_Nil, /* 97 */
1320 sc_Nil, /* 98 */
1321 sc_Nil, /* 99 */
1322 sc_Text, /* 100: C_BLOCK block start/end */
1323 sc_Text, /* 101: C_FCN function start/end */
1324 sc_Info, /* 102: C_EOS end of struct/union/enum */
1325 sc_Nil, /* 103: C_FILE file start */
1326 sc_Nil, /* 104: C_LINE line number */
1327 sc_Nil, /* 105: C_ALIAS combined type info */
1328 sc_Nil, /* 106: C_HIDDEN ??? */
1329 };
1330
1331 /* Convert COFF storage class to ECOFF symbol type. */
1332 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1333 st_Nil, /* 0: C_NULL */
1334 st_Local, /* 1: C_AUTO auto var */
1335 st_Global, /* 2: C_EXT external */
1336 st_Static, /* 3: C_STAT static */
1337 st_Local, /* 4: C_REG register */
1338 st_Global, /* 5: C_EXTDEF ??? */
1339 st_Label, /* 6: C_LABEL label */
1340 st_Label, /* 7: C_ULABEL user label */
1341 st_Member, /* 8: C_MOS member of struct */
1342 st_Param, /* 9: C_ARG argument */
1343 st_Block, /* 10: C_STRTAG struct tag */
1344 st_Member, /* 11: C_MOU member of union */
1345 st_Block, /* 12: C_UNTAG union tag */
1346 st_Typedef, /* 13: C_TPDEF typedef */
1347 st_Static, /* 14: C_USTATIC ??? */
1348 st_Block, /* 15: C_ENTAG enum tag */
1349 st_Member, /* 16: C_MOE member of enum */
1350 st_Param, /* 17: C_REGPARM register parameter */
1351 st_Member, /* 18; C_FIELD bitfield */
1352 st_Nil, /* 19 */
1353 st_Nil, /* 20 */
1354 st_Nil, /* 21 */
1355 st_Nil, /* 22 */
1356 st_Nil, /* 23 */
1357 st_Nil, /* 24 */
1358 st_Nil, /* 25 */
1359 st_Nil, /* 26 */
1360 st_Nil, /* 27 */
1361 st_Nil, /* 28 */
1362 st_Nil, /* 29 */
1363 st_Nil, /* 30 */
1364 st_Nil, /* 31 */
1365 st_Nil, /* 32 */
1366 st_Nil, /* 33 */
1367 st_Nil, /* 34 */
1368 st_Nil, /* 35 */
1369 st_Nil, /* 36 */
1370 st_Nil, /* 37 */
1371 st_Nil, /* 38 */
1372 st_Nil, /* 39 */
1373 st_Nil, /* 40 */
1374 st_Nil, /* 41 */
1375 st_Nil, /* 42 */
1376 st_Nil, /* 43 */
1377 st_Nil, /* 44 */
1378 st_Nil, /* 45 */
1379 st_Nil, /* 46 */
1380 st_Nil, /* 47 */
1381 st_Nil, /* 48 */
1382 st_Nil, /* 49 */
1383 st_Nil, /* 50 */
1384 st_Nil, /* 51 */
1385 st_Nil, /* 52 */
1386 st_Nil, /* 53 */
1387 st_Nil, /* 54 */
1388 st_Nil, /* 55 */
1389 st_Nil, /* 56 */
1390 st_Nil, /* 57 */
1391 st_Nil, /* 58 */
1392 st_Nil, /* 59 */
1393 st_Nil, /* 60 */
1394 st_Nil, /* 61 */
1395 st_Nil, /* 62 */
1396 st_Nil, /* 63 */
1397 st_Nil, /* 64 */
1398 st_Nil, /* 65 */
1399 st_Nil, /* 66 */
1400 st_Nil, /* 67 */
1401 st_Nil, /* 68 */
1402 st_Nil, /* 69 */
1403 st_Nil, /* 70 */
1404 st_Nil, /* 71 */
1405 st_Nil, /* 72 */
1406 st_Nil, /* 73 */
1407 st_Nil, /* 74 */
1408 st_Nil, /* 75 */
1409 st_Nil, /* 76 */
1410 st_Nil, /* 77 */
1411 st_Nil, /* 78 */
1412 st_Nil, /* 79 */
1413 st_Nil, /* 80 */
1414 st_Nil, /* 81 */
1415 st_Nil, /* 82 */
1416 st_Nil, /* 83 */
1417 st_Nil, /* 84 */
1418 st_Nil, /* 85 */
1419 st_Nil, /* 86 */
1420 st_Nil, /* 87 */
1421 st_Nil, /* 88 */
1422 st_Nil, /* 89 */
1423 st_Nil, /* 90 */
1424 st_Nil, /* 91 */
1425 st_Nil, /* 92 */
1426 st_Nil, /* 93 */
1427 st_Nil, /* 94 */
1428 st_Nil, /* 95 */
1429 st_Nil, /* 96 */
1430 st_Nil, /* 97 */
1431 st_Nil, /* 98 */
1432 st_Nil, /* 99 */
1433 st_Block, /* 100: C_BLOCK block start/end */
1434 st_Proc, /* 101: C_FCN function start/end */
1435 st_End, /* 102: C_EOS end of struct/union/enum */
1436 st_File, /* 103: C_FILE file start */
1437 st_Nil, /* 104: C_LINE line number */
1438 st_Nil, /* 105: C_ALIAS combined type info */
1439 st_Nil, /* 106: C_HIDDEN ??? */
1440 };
1441
1442 /* Map COFF derived types to ECOFF type qualifiers. */
1443 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1444 tq_Nil, /* 0: DT_NON no more qualifiers */
1445 tq_Ptr, /* 1: DT_PTR pointer */
1446 tq_Proc, /* 2: DT_FCN function */
1447 tq_Array, /* 3: DT_ARY array */
1448 };
1449
1450
1451 /* Keep track of different sized allocation requests. */
1452 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1453
1454 \f
1455 /* Pointers and such to the original symbol table that is read in. */
1456 static struct filehdr orig_file_header; /* global object file header */
1457
1458 static HDRR orig_sym_hdr; /* symbolic header on input */
1459 static char *orig_linenum; /* line numbers */
1460 static DNR *orig_dense; /* dense numbers */
1461 static PDR *orig_procs; /* procedures */
1462 static SYMR *orig_local_syms; /* local symbols */
1463 static OPTR *orig_opt_syms; /* optimization symbols */
1464 static AUXU *orig_aux_syms; /* auxiliary symbols */
1465 static char *orig_local_strs; /* local strings */
1466 static char *orig_ext_strs; /* external strings */
1467 static FDR *orig_files; /* file descriptors */
1468 static symint_t *orig_rfds; /* relative file desc's */
1469 static EXTR *orig_ext_syms; /* external symbols */
1470
1471 /* Macros to convert an index into a given object within the original
1472 symbol table. */
1473 #define CHECK(num,max,str) \
1474 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1475
1476 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1477 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1478 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1479 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1480 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1481 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1482 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1483 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1484 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1485 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1486 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1487
1488 /* Various other statics. */
1489 static HDRR symbolic_header; /* symbolic header */
1490 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1491 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1492 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1493 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1494 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1495 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1496 static unsigned long file_offset = 0; /* current file offset */
1497 static unsigned long max_file_offset = 0; /* maximum file offset */
1498 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1499 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1500 static char *progname = (char *) 0; /* program name for errors */
1501 static const char *input_name = "stdin"; /* name of input file */
1502 static char *object_name = (char *) 0; /* tmp. name of object file */
1503 static char *obj_in_name = (char *) 0; /* name of input object file */
1504 static char *cur_line_start = (char *) 0; /* current line read in */
1505 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1506 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1507 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1508 static long line_number = 0; /* current input line number */
1509 static int debug = 0; /* trace functions */
1510 static int version = 0; /* print version # */
1511 static int verbose = 0;
1512 static int had_errors = 0; /* != 0 if errors were found */
1513 static int rename_output = 0; /* != 0 if rename output file*/
1514 static int delete_input = 0; /* != 0 if delete input after done */
1515 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1516
1517
1518 /* Pseudo symbol to use when putting stabs into the symbol table. */
1519 #ifndef STABS_SYMBOL
1520 #define STABS_SYMBOL "@stabs"
1521 #endif
1522
1523 static const char stabs_symbol[] = STABS_SYMBOL;
1524
1525 \f
1526 /* Forward reference for functions. See the definition for more details. */
1527
1528 #ifndef STATIC
1529 #define STATIC static
1530 #endif
1531
1532 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1533 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1534 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1535 shash_t **);
1536 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1537 symint_t, symint_t);
1538 STATIC symint_t add_ext_symbol (EXTR *, int);
1539 STATIC symint_t add_aux_sym_symint (symint_t);
1540 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1541 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1542 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1543 STATIC void add_unknown_tag (tag_t *);
1544 STATIC void add_procedure (const char *, const char *);
1545 STATIC void initialize_init_file (void);
1546 STATIC void add_file (const char *, const char *);
1547 STATIC void add_bytes (varray_t *, char *, Size_t);
1548 STATIC void add_varray_page (varray_t *);
1549 STATIC void update_headers (void);
1550 STATIC void write_varray (varray_t *, off_t, const char *);
1551 STATIC void write_object (void);
1552 STATIC const char *st_to_string (st_t);
1553 STATIC const char *sc_to_string (sc_t);
1554 STATIC char *read_line (void);
1555 STATIC void parse_input (void);
1556 STATIC void mark_stabs (const char *);
1557 STATIC void parse_begin (const char *);
1558 STATIC void parse_bend (const char *);
1559 STATIC void parse_def (const char *);
1560 STATIC void parse_end (const char *);
1561 STATIC void parse_ent (const char *);
1562 STATIC void parse_file (const char *);
1563 STATIC void parse_stabs_common (const char *, const char *, const char *);
1564 STATIC void parse_stabs (const char *);
1565 STATIC void parse_stabn (const char *);
1566 STATIC page_t *read_seek (Size_t, off_t, const char *);
1567 STATIC void copy_object (void);
1568
1569 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1570 STATIC page_t *allocate_page (void);
1571 STATIC page_t *allocate_multiple_pages (Size_t);
1572 STATIC void free_multiple_pages (page_t *, Size_t);
1573
1574 #ifndef MALLOC_CHECK
1575 STATIC page_t *allocate_cluster (Size_t);
1576 #endif
1577
1578 STATIC forward_t *allocate_forward (void);
1579 STATIC scope_t *allocate_scope (void);
1580 STATIC shash_t *allocate_shash (void);
1581 STATIC tag_t *allocate_tag (void);
1582 STATIC thash_t *allocate_thash (void);
1583 STATIC thead_t *allocate_thead (void);
1584 STATIC vlinks_t *allocate_vlinks (void);
1585
1586 STATIC void free_forward (forward_t *);
1587 STATIC void free_scope (scope_t *);
1588 STATIC void free_tag (tag_t *);
1589 STATIC void free_thead (thead_t *);
1590
1591 extern char *optarg;
1592 extern int optind;
1593 extern int opterr;
1594 \f
1595 /* List of assembler pseudo ops and beginning sequences that need
1596 special actions. Someday, this should be a hash table, and such,
1597 but for now a linear list of names and calls to memcmp will
1598 do...... */
1599
1600 typedef struct _pseudo_ops {
1601 const char *const name; /* pseudo-op in ascii */
1602 const int len; /* length of name to compare */
1603 void (*const func) (const char *); /* function to handle line */
1604 } pseudo_ops_t;
1605
1606 static const pseudo_ops_t pseudo_ops[] = {
1607 { "#.def", sizeof("#.def")-1, parse_def },
1608 { "#.begin", sizeof("#.begin")-1, parse_begin },
1609 { "#.bend", sizeof("#.bend")-1, parse_bend },
1610 { ".end", sizeof(".end")-1, parse_end },
1611 { ".ent", sizeof(".ent")-1, parse_ent },
1612 { ".file", sizeof(".file")-1, parse_file },
1613 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1614 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1615 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1616 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1617 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1618 };
1619
1620 \f
1621 /* Command line options for getopt_long. */
1622
1623 static const struct option options[] =
1624 {
1625 { "version", 0, 0, 'V' },
1626 { "verbose", 0, 0, 'v' },
1627 { 0, 0, 0, 0 }
1628 };
1629 \f
1630 /* Add a page to a varray object. */
1631
1632 STATIC void
1633 add_varray_page (varray_t *vp)
1634 {
1635 vlinks_t *new_links = allocate_vlinks ();
1636
1637 #ifdef MALLOC_CHECK
1638 if (vp->object_size > 1)
1639 new_links->datum = xcalloc (1, vp->object_size);
1640 else
1641 #endif
1642 new_links->datum = allocate_page ();
1643
1644 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1645 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1646
1647 new_links->start_index = vp->num_allocated;
1648 vp->objects_last_page = 0;
1649
1650 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1651 vp->first = vp->last = new_links;
1652 else
1653 { /* 2nd or greater allocation */
1654 new_links->prev = vp->last;
1655 vp->last->next = new_links;
1656 vp->last = new_links;
1657 }
1658 }
1659
1660 \f
1661 /* Compute hash code (from tree.c) */
1662
1663 #define HASHBITS 30
1664
1665 STATIC shash_t *
1666 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1667 symint_t *ret_hash_index)
1668 {
1669 unsigned long hi;
1670 Ptrdiff_t i;
1671 shash_t *ptr;
1672 int first_ch = *text;
1673
1674 hi = hash_len;
1675 for (i = 0; i < hash_len; i++)
1676 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1677
1678 hi &= (1 << HASHBITS) - 1;
1679 hi %= SHASH_SIZE;
1680
1681 if (ret_hash_index != (symint_t *) 0)
1682 *ret_hash_index = hi;
1683
1684 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1685 if ((symint_t) hash_len == ptr->len
1686 && first_ch == ptr->string[0]
1687 && memcmp (text, ptr->string, hash_len) == 0)
1688 break;
1689
1690 return ptr;
1691 }
1692
1693 \f
1694 /* Add a string (and null pad) to one of the string tables. A
1695 consequence of hashing strings, is that we don't let strings cross
1696 page boundaries. The extra nulls will be ignored. VP is a string
1697 virtual array, HASH_TBL a pointer to the hash table, the string
1698 starts at START and the position one byte after the string is given
1699 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1700
1701 STATIC symint_t
1702 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1703 const char *end_p1, shash_t **ret_hash)
1704 {
1705 Ptrdiff_t len = end_p1 - start;
1706 shash_t *hash_ptr;
1707 symint_t hi;
1708
1709 if (len >= (Ptrdiff_t) PAGE_USIZE)
1710 fatal ("string too big (%ld bytes)", (long) len);
1711
1712 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1713 if (hash_ptr == (shash_t *) 0)
1714 {
1715 char *p;
1716
1717 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1718 {
1719 vp->num_allocated
1720 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1721 add_varray_page (vp);
1722 }
1723
1724 hash_ptr = allocate_shash ();
1725 hash_ptr->next = hash_tbl[hi];
1726 hash_tbl[hi] = hash_ptr;
1727
1728 hash_ptr->len = len;
1729 hash_ptr->indx = vp->num_allocated;
1730 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1731
1732 vp->objects_last_page += len+1;
1733 vp->num_allocated += len+1;
1734
1735 while (len-- > 0)
1736 *p++ = *start++;
1737
1738 *p = '\0';
1739 }
1740
1741 if (ret_hash != (shash_t **) 0)
1742 *ret_hash = hash_ptr;
1743
1744 return hash_ptr->indx;
1745 }
1746
1747 \f
1748 /* Add a local symbol. The symbol string starts at STR_START and the
1749 first byte after it is marked by STR_END_P1. The symbol has type
1750 TYPE and storage class STORAGE and value VALUE. INDX is an index
1751 to local/aux. symbols. */
1752
1753 STATIC symint_t
1754 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1755 sc_t storage, symint_t value, symint_t indx)
1756 {
1757 symint_t ret;
1758 SYMR *psym;
1759 scope_t *pscope;
1760 thead_t *ptag_head;
1761 tag_t *ptag;
1762 tag_t *ptag_next;
1763 varray_t *vp = &cur_file_ptr->symbols;
1764 int scope_delta = 0;
1765 shash_t *hash_ptr = (shash_t *) 0;
1766
1767 if (vp->objects_last_page == vp->objects_per_page)
1768 add_varray_page (vp);
1769
1770 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1771
1772 psym->value = value;
1773 psym->st = (unsigned) type;
1774 psym->sc = (unsigned) storage;
1775 psym->index = indx;
1776 psym->iss = (str_start == (const char *) 0)
1777 ? 0
1778 : add_string (&cur_file_ptr->strings,
1779 &cur_file_ptr->shash_head[0],
1780 str_start,
1781 str_end_p1,
1782 &hash_ptr);
1783
1784 ret = vp->num_allocated++;
1785
1786 if (MIPS_IS_STAB (psym))
1787 return ret;
1788
1789 /* Save the symbol within the hash table if this is a static
1790 item, and it has a name. */
1791 if (hash_ptr != (shash_t *) 0
1792 && (type == st_Global || type == st_Static || type == st_Label
1793 || type == st_Proc || type == st_StaticProc))
1794 hash_ptr->sym_ptr = psym;
1795
1796 /* push or pop a scope if appropriate. */
1797 switch (type)
1798 {
1799 default:
1800 break;
1801
1802 case st_File: /* beginning of file */
1803 case st_Proc: /* procedure */
1804 case st_StaticProc: /* static procedure */
1805 case st_Block: /* begin scope */
1806 pscope = allocate_scope ();
1807 pscope->prev = cur_file_ptr->cur_scope;
1808 pscope->lsym = psym;
1809 pscope->lnumber = ret;
1810 pscope->type = type;
1811 cur_file_ptr->cur_scope = pscope;
1812
1813 if (type != st_File)
1814 scope_delta = 1;
1815
1816 /* For every block type except file, struct, union, or
1817 enumeration blocks, push a level on the tag stack. We omit
1818 file types, so that tags can span file boundaries. */
1819 if (type != st_File && storage != sc_Info)
1820 {
1821 ptag_head = allocate_thead ();
1822 ptag_head->first_tag = 0;
1823 ptag_head->prev = cur_tag_head;
1824 cur_tag_head = ptag_head;
1825 }
1826 break;
1827
1828 case st_End:
1829 pscope = cur_file_ptr->cur_scope;
1830 if (pscope == (scope_t *) 0)
1831 error ("internal error, too many st_End's");
1832
1833 else
1834 {
1835 st_t begin_type = (st_t) pscope->lsym->st;
1836
1837 if (begin_type != st_File)
1838 scope_delta = -1;
1839
1840 /* Except for file, structure, union, or enumeration end
1841 blocks remove all tags created within this scope. */
1842 if (begin_type != st_File && storage != sc_Info)
1843 {
1844 ptag_head = cur_tag_head;
1845 cur_tag_head = ptag_head->prev;
1846
1847 for (ptag = ptag_head->first_tag;
1848 ptag != (tag_t *) 0;
1849 ptag = ptag_next)
1850 {
1851 if (ptag->forward_ref != (forward_t *) 0)
1852 add_unknown_tag (ptag);
1853
1854 ptag_next = ptag->same_block;
1855 ptag->hash_ptr->tag_ptr = ptag->same_name;
1856 free_tag (ptag);
1857 }
1858
1859 free_thead (ptag_head);
1860 }
1861
1862 cur_file_ptr->cur_scope = pscope->prev;
1863 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1864
1865 if (storage != sc_Info)
1866 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1867
1868 if (begin_type == st_File || begin_type == st_Block)
1869 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1870
1871 /* Functions push two or more aux words as follows:
1872 1st word: index+1 of the end symbol
1873 2nd word: type of the function (plus any aux words needed).
1874 Also, tie the external pointer back to the function begin symbol. */
1875 else
1876 {
1877 symint_t type;
1878 pscope->lsym->index = add_aux_sym_symint (ret+1);
1879 type = add_aux_sym_tir (&last_func_type_info,
1880 hash_no,
1881 &cur_file_ptr->thash_head[0]);
1882 if (last_func_eptr)
1883 {
1884 last_func_eptr->ifd = cur_file_ptr->file_index;
1885
1886 /* The index for an external st_Proc symbol is the index
1887 of the st_Proc symbol in the local symbol table. */
1888 last_func_eptr->asym.index = psym->index;
1889 }
1890 }
1891
1892 free_scope (pscope);
1893 }
1894 }
1895
1896 cur_file_ptr->nested_scopes += scope_delta;
1897
1898 if (debug && type != st_File
1899 && (debug > 2 || type == st_Block || type == st_End
1900 || type == st_Proc || type == st_StaticProc))
1901 {
1902 const char *sc_str = sc_to_string (storage);
1903 const char *st_str = st_to_string (type);
1904 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1905
1906 fprintf (stderr,
1907 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1908 value, depth, sc_str);
1909
1910 if (str_start && str_end_p1 - str_start > 0)
1911 fprintf (stderr, " st= %-11s name= %.*s\n",
1912 st_str, (int) (str_end_p1 - str_start), str_start);
1913 else
1914 {
1915 Size_t len = strlen (st_str);
1916 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1917 }
1918 }
1919
1920 return ret;
1921 }
1922
1923 \f
1924 /* Add an external symbol with symbol pointer ESYM and file index
1925 IFD. */
1926
1927 STATIC symint_t
1928 add_ext_symbol (EXTR *esym, int ifd)
1929 {
1930 const char *str_start; /* first byte in string */
1931 const char *str_end_p1; /* first byte after string */
1932 EXTR *psym;
1933 varray_t *vp = &ext_symbols;
1934 shash_t *hash_ptr = (shash_t *) 0;
1935
1936 str_start = ORIG_ESTRS (esym->asym.iss);
1937 str_end_p1 = str_start + strlen (str_start);
1938
1939 if (debug > 1)
1940 {
1941 long value = esym->asym.value;
1942 const char *sc_str = sc_to_string (esym->asym.sc);
1943 const char *st_str = st_to_string (esym->asym.st);
1944
1945 fprintf (stderr,
1946 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1947 value, ifd, sc_str);
1948
1949 if (str_start && str_end_p1 - str_start > 0)
1950 fprintf (stderr, " st= %-11s name= %.*s\n",
1951 st_str, (int) (str_end_p1 - str_start), str_start);
1952 else
1953 fprintf (stderr, " st= %s\n", st_str);
1954 }
1955
1956 if (vp->objects_last_page == vp->objects_per_page)
1957 add_varray_page (vp);
1958
1959 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1960
1961 *psym = *esym;
1962 psym->ifd = ifd;
1963 psym->asym.index = indexNil;
1964 psym->asym.iss = (str_start == (const char *) 0)
1965 ? 0
1966 : add_string (&ext_strings,
1967 &ext_str_hash[0],
1968 str_start,
1969 str_end_p1,
1970 &hash_ptr);
1971
1972 hash_ptr->esym_ptr = psym;
1973 return vp->num_allocated++;
1974 }
1975
1976 \f
1977 /* Add an auxiliary symbol (passing a symint). */
1978
1979 STATIC symint_t
1980 add_aux_sym_symint (symint_t aux_word)
1981 {
1982 AUXU *aux_ptr;
1983 efdr_t *file_ptr = cur_file_ptr;
1984 varray_t *vp = &file_ptr->aux_syms;
1985
1986 if (vp->objects_last_page == vp->objects_per_page)
1987 add_varray_page (vp);
1988
1989 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1990 aux_ptr->isym = aux_word;
1991
1992 return vp->num_allocated++;
1993 }
1994
1995
1996 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1997
1998 STATIC symint_t
1999 add_aux_sym_rndx (int file_index, symint_t sym_index)
2000 {
2001 AUXU *aux_ptr;
2002 efdr_t *file_ptr = cur_file_ptr;
2003 varray_t *vp = &file_ptr->aux_syms;
2004
2005 if (vp->objects_last_page == vp->objects_per_page)
2006 add_varray_page (vp);
2007
2008 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2009 aux_ptr->rndx.rfd = file_index;
2010 aux_ptr->rndx.index = sym_index;
2011
2012 return vp->num_allocated++;
2013 }
2014
2015 \f
2016 /* Add an auxiliary symbol (passing the basic type and possibly
2017 type qualifiers). */
2018
2019 STATIC symint_t
2020 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2021 {
2022 AUXU *aux_ptr;
2023 efdr_t *file_ptr = cur_file_ptr;
2024 varray_t *vp = &file_ptr->aux_syms;
2025 static AUXU init_aux;
2026 symint_t ret;
2027 int i;
2028 AUXU aux;
2029
2030 aux = init_aux;
2031 aux.ti.bt = (int) t->basic_type;
2032 aux.ti.continued = 0;
2033 aux.ti.fBitfield = t->bitfield;
2034
2035 aux.ti.tq0 = (int) t->type_qualifiers[0];
2036 aux.ti.tq1 = (int) t->type_qualifiers[1];
2037 aux.ti.tq2 = (int) t->type_qualifiers[2];
2038 aux.ti.tq3 = (int) t->type_qualifiers[3];
2039 aux.ti.tq4 = (int) t->type_qualifiers[4];
2040 aux.ti.tq5 = (int) t->type_qualifiers[5];
2041
2042
2043 /* For anything that adds additional information, we must not hash,
2044 so check here, and reset our state. */
2045
2046 if (state != hash_no
2047 && (t->type_qualifiers[0] == tq_Array
2048 || t->type_qualifiers[1] == tq_Array
2049 || t->type_qualifiers[2] == tq_Array
2050 || t->type_qualifiers[3] == tq_Array
2051 || t->type_qualifiers[4] == tq_Array
2052 || t->type_qualifiers[5] == tq_Array
2053 || t->basic_type == bt_Struct
2054 || t->basic_type == bt_Union
2055 || t->basic_type == bt_Enum
2056 || t->bitfield
2057 || t->num_dims > 0))
2058 state = hash_no;
2059
2060 /* See if we can hash this type, and save some space, but some types
2061 can't be hashed (because they contain arrays or continuations),
2062 and others can be put into the hash list, but cannot use existing
2063 types because other aux entries precede this one. */
2064
2065 if (state != hash_no)
2066 {
2067 thash_t *hash_ptr;
2068 symint_t hi;
2069
2070 hi = aux.isym & ((1 << HASHBITS) - 1);
2071 hi %= THASH_SIZE;
2072
2073 for (hash_ptr = hash_tbl[hi];
2074 hash_ptr != (thash_t *) 0;
2075 hash_ptr = hash_ptr->next)
2076 {
2077 if (aux.isym == hash_ptr->type.isym)
2078 break;
2079 }
2080
2081 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2082 return hash_ptr->indx;
2083
2084 if (hash_ptr == (thash_t *) 0)
2085 {
2086 hash_ptr = allocate_thash ();
2087 hash_ptr->next = hash_tbl[hi];
2088 hash_ptr->type = aux;
2089 hash_ptr->indx = vp->num_allocated;
2090 hash_tbl[hi] = hash_ptr;
2091 }
2092 }
2093
2094 /* Everything is set up, add the aux symbol. */
2095 if (vp->objects_last_page == vp->objects_per_page)
2096 add_varray_page (vp);
2097
2098 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2099 *aux_ptr = aux;
2100
2101 ret = vp->num_allocated++;
2102
2103 /* Add bitfield length if it exists.
2104
2105 NOTE: Mips documentation claims bitfield goes at the end of the
2106 AUX record, but the DECstation compiler emits it here.
2107 (This would only make a difference for enum bitfields.)
2108
2109 Also note: We use the last size given since gcc may emit 2
2110 for an enum bitfield. */
2111
2112 if (t->bitfield)
2113 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2114
2115
2116 /* Add tag information if needed. Structure, union, and enum
2117 references add 2 aux symbols: a [file index, symbol index]
2118 pointer to the structure type, and the current file index. */
2119
2120 if (t->basic_type == bt_Struct
2121 || t->basic_type == bt_Union
2122 || t->basic_type == bt_Enum)
2123 {
2124 symint_t file_index = t->tag_ptr->ifd;
2125 symint_t sym_index = t->tag_ptr->indx;
2126
2127 if (t->unknown_tag)
2128 {
2129 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2130 (void) add_aux_sym_symint ((symint_t)-1);
2131 }
2132 else if (sym_index != indexNil)
2133 {
2134 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2135 (void) add_aux_sym_symint (file_index);
2136 }
2137 else
2138 {
2139 forward_t *forward_ref = allocate_forward ();
2140
2141 forward_ref->type_ptr = aux_ptr;
2142 forward_ref->next = t->tag_ptr->forward_ref;
2143 t->tag_ptr->forward_ref = forward_ref;
2144
2145 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2146 forward_ref->index_ptr
2147 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2148
2149 (void) add_aux_sym_symint (file_index);
2150 forward_ref->ifd_ptr
2151 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2152 }
2153 }
2154
2155 /* Add information about array bounds if they exist. */
2156 for (i = 0; i < t->num_dims; i++)
2157 {
2158 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2159 cur_file_ptr->int_type);
2160
2161 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2162 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2163 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2164 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2165 ? 0
2166 : (t->sizes[i] * 8) / t->dimensions[i]);
2167 };
2168
2169 /* NOTE: Mips documentation claims that the bitfield width goes here.
2170 But it needs to be emitted earlier. */
2171
2172 return ret;
2173 }
2174
2175 \f
2176 /* Add a tag to the tag table (unless it already exists). */
2177
2178 STATIC tag_t *
2179 get_tag (const char *tag_start, /* 1st byte of tag name */
2180 const char *tag_end_p1, /* 1st byte after tag name */
2181 symint_t indx, /* index of tag start block */
2182 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2183
2184 {
2185 shash_t *hash_ptr;
2186 tag_t *tag_ptr;
2187 hash_ptr = hash_string (tag_start,
2188 tag_end_p1 - tag_start,
2189 &tag_hash[0],
2190 (symint_t *) 0);
2191
2192 if (hash_ptr != (shash_t *) 0
2193 && hash_ptr->tag_ptr != (tag_t *) 0)
2194 {
2195 tag_ptr = hash_ptr->tag_ptr;
2196 if (indx != indexNil)
2197 {
2198 tag_ptr->basic_type = basic_type;
2199 tag_ptr->ifd = cur_file_ptr->file_index;
2200 tag_ptr->indx = indx;
2201 }
2202 return tag_ptr;
2203 }
2204
2205 (void) add_string (&tag_strings,
2206 &tag_hash[0],
2207 tag_start,
2208 tag_end_p1,
2209 &hash_ptr);
2210
2211 tag_ptr = allocate_tag ();
2212 tag_ptr->forward_ref = (forward_t *) 0;
2213 tag_ptr->hash_ptr = hash_ptr;
2214 tag_ptr->same_name = hash_ptr->tag_ptr;
2215 tag_ptr->basic_type = basic_type;
2216 tag_ptr->indx = indx;
2217 tag_ptr->ifd = (indx == indexNil
2218 ? (symint_t) -1 : cur_file_ptr->file_index);
2219 tag_ptr->same_block = cur_tag_head->first_tag;
2220
2221 cur_tag_head->first_tag = tag_ptr;
2222 hash_ptr->tag_ptr = tag_ptr;
2223
2224 return tag_ptr;
2225 }
2226
2227 \f
2228 /* Add an unknown {struct, union, enum} tag. */
2229
2230 STATIC void
2231 add_unknown_tag (tag_t *ptag)
2232 {
2233 shash_t *hash_ptr = ptag->hash_ptr;
2234 char *name_start = hash_ptr->string;
2235 char *name_end_p1 = name_start + hash_ptr->len;
2236 forward_t *f_next = ptag->forward_ref;
2237 forward_t *f_cur;
2238 int sym_index;
2239 int file_index = cur_file_ptr->file_index;
2240
2241 if (debug > 1)
2242 {
2243 const char *agg_type = "{unknown aggregate type}";
2244 switch (ptag->basic_type)
2245 {
2246 case bt_Struct: agg_type = "struct"; break;
2247 case bt_Union: agg_type = "union"; break;
2248 case bt_Enum: agg_type = "enum"; break;
2249 default: break;
2250 }
2251
2252 fprintf (stderr, "unknown %s %.*s found\n",
2253 agg_type, (int) hash_ptr->len, name_start);
2254 }
2255
2256 sym_index = add_local_symbol (name_start,
2257 name_end_p1,
2258 st_Block,
2259 sc_Info,
2260 (symint_t) 0,
2261 (symint_t) 0);
2262
2263 (void) add_local_symbol (name_start,
2264 name_end_p1,
2265 st_End,
2266 sc_Info,
2267 (symint_t) 0,
2268 (symint_t) 0);
2269
2270 while (f_next != (forward_t *) 0)
2271 {
2272 f_cur = f_next;
2273 f_next = f_next->next;
2274
2275 f_cur->ifd_ptr->isym = file_index;
2276 f_cur->index_ptr->rndx.index = sym_index;
2277
2278 free_forward (f_cur);
2279 }
2280
2281 return;
2282 }
2283
2284 \f
2285 /* Add a procedure to the current file's list of procedures, and record
2286 this is the current procedure. If the assembler created a PDR for
2287 this procedure, use that to initialize the current PDR. */
2288
2289 STATIC void
2290 add_procedure (const char *func_start, /* 1st byte of func name */
2291 const char *func_end_p1) /* 1st byte after func name */
2292 {
2293 PDR *new_proc_ptr;
2294 efdr_t *file_ptr = cur_file_ptr;
2295 varray_t *vp = &file_ptr->procs;
2296 symint_t value = 0;
2297 st_t proc_type = st_Proc;
2298 shash_t *shash_ptr = hash_string (func_start,
2299 func_end_p1 - func_start,
2300 &orig_str_hash[0],
2301 (symint_t *) 0);
2302
2303 if (debug)
2304 fputc ('\n', stderr);
2305
2306 if (vp->objects_last_page == vp->objects_per_page)
2307 add_varray_page (vp);
2308
2309 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2310
2311 vp->num_allocated++;
2312
2313
2314 /* Did the assembler create this procedure? If so, get the PDR information. */
2315 cur_oproc_ptr = (PDR *) 0;
2316 if (shash_ptr != (shash_t *) 0)
2317 {
2318 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2319 SYMR *sym_ptr = shash_ptr->sym_ptr;
2320
2321 if (old_proc_ptr != (PDR *) 0
2322 && sym_ptr != (SYMR *) 0
2323 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2324 {
2325 cur_oproc_begin = sym_ptr;
2326 cur_oproc_end = shash_ptr->end_ptr;
2327 value = sym_ptr->value;
2328
2329 cur_oproc_ptr = old_proc_ptr;
2330 proc_type = (st_t) sym_ptr->st;
2331 *new_proc_ptr = *old_proc_ptr; /* initialize */
2332 }
2333 }
2334
2335 if (cur_oproc_ptr == (PDR *) 0)
2336 error ("did not find a PDR block for %.*s",
2337 (int) (func_end_p1 - func_start), func_start);
2338
2339 /* Determine the start of symbols. */
2340 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2341
2342 /* Push the start of the function. */
2343 (void) add_local_symbol (func_start, func_end_p1,
2344 proc_type, sc_Text,
2345 value,
2346 (symint_t) 0);
2347 }
2348
2349 \f
2350 /* Initialize the init_file structure. */
2351
2352 STATIC void
2353 initialize_init_file (void)
2354 {
2355 memset (&init_file, 0, sizeof (init_file));
2356
2357 init_file.fdr.lang = langC;
2358 init_file.fdr.fMerge = 1;
2359 init_file.fdr.glevel = GLEVEL_2;
2360
2361 #ifdef WORDS_BIG_ENDIAN
2362 init_file.fdr.fBigendian = 1;
2363 #endif
2364
2365 INITIALIZE_VARRAY (&init_file.strings, char);
2366 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2367 INITIALIZE_VARRAY (&init_file.procs, PDR);
2368 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2369
2370 init_file_initialized = 1;
2371 }
2372
2373 /* Add a new filename, and set up all of the file relative
2374 virtual arrays (strings, symbols, aux syms, etc.). Record
2375 where the current file structure lives. */
2376
2377 STATIC void
2378 add_file (const char *file_start, /* first byte in string */
2379 const char *file_end_p1) /* first byte after string */
2380 {
2381 static char zero_bytes[2] = { '\0', '\0' };
2382
2383 Ptrdiff_t len = file_end_p1 - file_start;
2384 int first_ch = *file_start;
2385 efdr_t *file_ptr;
2386
2387 if (debug)
2388 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2389
2390 /* See if the file has already been created. */
2391 for (file_ptr = first_file;
2392 file_ptr != (efdr_t *) 0;
2393 file_ptr = file_ptr->next_file)
2394 {
2395 if (first_ch == file_ptr->name[0]
2396 && file_ptr->name[len] == '\0'
2397 && memcmp (file_start, file_ptr->name, len) == 0)
2398 {
2399 cur_file_ptr = file_ptr;
2400 break;
2401 }
2402 }
2403
2404 /* If this is a new file, create it. */
2405 if (file_ptr == (efdr_t *) 0)
2406 {
2407 if (file_desc.objects_last_page == file_desc.objects_per_page)
2408 add_varray_page (&file_desc);
2409
2410 if (! init_file_initialized)
2411 initialize_init_file ();
2412
2413 file_ptr = cur_file_ptr
2414 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2415 *file_ptr = init_file;
2416
2417 file_ptr->file_index = file_desc.num_allocated++;
2418
2419 /* Allocate the string hash table. */
2420 file_ptr->shash_head = (shash_t **) allocate_page ();
2421
2422 /* Make sure 0 byte in string table is null */
2423 add_string (&file_ptr->strings,
2424 &file_ptr->shash_head[0],
2425 &zero_bytes[0],
2426 &zero_bytes[0],
2427 (shash_t **) 0);
2428
2429 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2430 fatal ("filename goes over one page boundary");
2431
2432 /* Push the start of the filename. We assume that the filename
2433 will be stored at string offset 1. */
2434 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2435 (symint_t) 0, (symint_t) 0);
2436 file_ptr->fdr.rss = 1;
2437 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2438 file_ptr->name_len = file_end_p1 - file_start;
2439
2440 /* Update the linked list of file descriptors. */
2441 *last_file_ptr = file_ptr;
2442 last_file_ptr = &file_ptr->next_file;
2443
2444 /* Add void & int types to the file (void should be first to catch
2445 errant 0's within the index fields). */
2446 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2447 hash_yes,
2448 &cur_file_ptr->thash_head[0]);
2449
2450 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2451 hash_yes,
2452 &cur_file_ptr->thash_head[0]);
2453 }
2454 }
2455
2456 \f
2457 /* Add a stream of random bytes to a varray. */
2458
2459 STATIC void
2460 add_bytes (varray_t *vp, /* virtual array to add too */
2461 char *input_ptr, /* start of the bytes */
2462 Size_t nitems) /* # items to move */
2463 {
2464 Size_t move_items;
2465 Size_t move_bytes;
2466 char *ptr;
2467
2468 while (nitems > 0)
2469 {
2470 if (vp->objects_last_page >= vp->objects_per_page)
2471 add_varray_page (vp);
2472
2473 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2474 move_items = vp->objects_per_page - vp->objects_last_page;
2475 if (move_items > nitems)
2476 move_items = nitems;
2477
2478 move_bytes = move_items * vp->object_size;
2479 nitems -= move_items;
2480
2481 if (move_bytes >= 32)
2482 {
2483 (void) memcpy (ptr, input_ptr, move_bytes);
2484 input_ptr += move_bytes;
2485 }
2486 else
2487 {
2488 while (move_bytes-- > 0)
2489 *ptr++ = *input_ptr++;
2490 }
2491 }
2492 }
2493
2494 \f
2495 /* Convert storage class to string. */
2496
2497 STATIC const char *
2498 sc_to_string (sc_t storage_class)
2499 {
2500 switch (storage_class)
2501 {
2502 case sc_Nil: return "Nil,";
2503 case sc_Text: return "Text,";
2504 case sc_Data: return "Data,";
2505 case sc_Bss: return "Bss,";
2506 case sc_Register: return "Register,";
2507 case sc_Abs: return "Abs,";
2508 case sc_Undefined: return "Undefined,";
2509 case sc_CdbLocal: return "CdbLocal,";
2510 case sc_Bits: return "Bits,";
2511 case sc_CdbSystem: return "CdbSystem,";
2512 case sc_RegImage: return "RegImage,";
2513 case sc_Info: return "Info,";
2514 case sc_UserStruct: return "UserStruct,";
2515 case sc_SData: return "SData,";
2516 case sc_SBss: return "SBss,";
2517 case sc_RData: return "RData,";
2518 case sc_Var: return "Var,";
2519 case sc_Common: return "Common,";
2520 case sc_SCommon: return "SCommon,";
2521 case sc_VarRegister: return "VarRegister,";
2522 case sc_Variant: return "Variant,";
2523 case sc_SUndefined: return "SUndefined,";
2524 case sc_Init: return "Init,";
2525 case sc_Max: return "Max,";
2526 }
2527
2528 return "???,";
2529 }
2530
2531 \f
2532 /* Convert symbol type to string. */
2533
2534 STATIC const char *
2535 st_to_string (st_t symbol_type)
2536 {
2537 switch (symbol_type)
2538 {
2539 case st_Nil: return "Nil,";
2540 case st_Global: return "Global,";
2541 case st_Static: return "Static,";
2542 case st_Param: return "Param,";
2543 case st_Local: return "Local,";
2544 case st_Label: return "Label,";
2545 case st_Proc: return "Proc,";
2546 case st_Block: return "Block,";
2547 case st_End: return "End,";
2548 case st_Member: return "Member,";
2549 case st_Typedef: return "Typedef,";
2550 case st_File: return "File,";
2551 case st_RegReloc: return "RegReloc,";
2552 case st_Forward: return "Forward,";
2553 case st_StaticProc: return "StaticProc,";
2554 case st_Constant: return "Constant,";
2555 case st_Str: return "String,";
2556 case st_Number: return "Number,";
2557 case st_Expr: return "Expr,";
2558 case st_Type: return "Type,";
2559 case st_Max: return "Max,";
2560 }
2561
2562 return "???,";
2563 }
2564
2565 \f
2566 /* Read a line from standard input, and return the start of the buffer
2567 (which is grows if the line is too big). We split lines at the
2568 semi-colon, and return each logical line independently. */
2569
2570 STATIC char *
2571 read_line (void)
2572 {
2573 static int line_split_p = 0;
2574 int string_p = 0;
2575 int comment_p = 0;
2576 int ch;
2577 char *ptr;
2578
2579 if (cur_line_start == (char *) 0)
2580 { /* allocate initial page */
2581 cur_line_start = (char *) allocate_page ();
2582 cur_line_alloc = PAGE_SIZE;
2583 }
2584
2585 if (!line_split_p)
2586 line_number++;
2587
2588 line_split_p = 0;
2589 cur_line_nbytes = 0;
2590
2591 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2592 {
2593 if (++cur_line_nbytes >= cur_line_alloc-1)
2594 {
2595 int num_pages = cur_line_alloc / PAGE_SIZE;
2596 char *old_buffer = cur_line_start;
2597
2598 cur_line_alloc += PAGE_SIZE;
2599 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2600 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2601
2602 ptr = cur_line_start + cur_line_nbytes - 1;
2603 }
2604
2605 if (ch == '\n')
2606 {
2607 *ptr++ = '\n';
2608 *ptr = '\0';
2609 cur_line_ptr = cur_line_start;
2610 return cur_line_ptr;
2611 }
2612
2613 else if (ch == '\0')
2614 error ("null character found in input");
2615
2616 else if (!comment_p)
2617 {
2618 if (ch == '"')
2619 string_p = !string_p;
2620
2621 else if (ch == '#')
2622 comment_p++;
2623
2624 else if (ch == ';' && !string_p)
2625 {
2626 line_split_p = 1;
2627 *ptr++ = '\n';
2628 *ptr = '\0';
2629 cur_line_ptr = cur_line_start;
2630 return cur_line_ptr;
2631 }
2632 }
2633 }
2634
2635 if (ferror (stdin))
2636 pfatal_with_name (input_name);
2637
2638 cur_line_ptr = (char *) 0;
2639 return (char *) 0;
2640 }
2641
2642 \f
2643 /* Parse #.begin directives which have a label as the first argument
2644 which gives the location of the start of the block. */
2645
2646 STATIC void
2647 parse_begin (const char *start)
2648 {
2649 const char *end_p1; /* end of label */
2650 int ch;
2651 shash_t *hash_ptr; /* hash pointer to lookup label */
2652
2653 if (cur_file_ptr == (efdr_t *) 0)
2654 {
2655 error ("#.begin directive without a preceding .file directive");
2656 return;
2657 }
2658
2659 if (cur_proc_ptr == (PDR *) 0)
2660 {
2661 error ("#.begin directive without a preceding .ent directive");
2662 return;
2663 }
2664
2665 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2666 ;
2667
2668 hash_ptr = hash_string (start,
2669 end_p1 - start,
2670 &orig_str_hash[0],
2671 (symint_t *) 0);
2672
2673 if (hash_ptr == (shash_t *) 0)
2674 {
2675 error ("label %.*s not found for #.begin",
2676 (int) (end_p1 - start), start);
2677 return;
2678 }
2679
2680 if (cur_oproc_begin == (SYMR *) 0)
2681 {
2682 error ("procedure table %.*s not found for #.begin",
2683 (int) (end_p1 - start), start);
2684 return;
2685 }
2686
2687 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2688 st_Block, sc_Text,
2689 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2690 (symint_t) 0);
2691 }
2692
2693 \f
2694 /* Parse #.bend directives which have a label as the first argument
2695 which gives the location of the end of the block. */
2696
2697 STATIC void
2698 parse_bend (const char *start)
2699 {
2700 const char *end_p1; /* end of label */
2701 int ch;
2702 shash_t *hash_ptr; /* hash pointer to lookup label */
2703
2704 if (cur_file_ptr == (efdr_t *) 0)
2705 {
2706 error ("#.begin directive without a preceding .file directive");
2707 return;
2708 }
2709
2710 if (cur_proc_ptr == (PDR *) 0)
2711 {
2712 error ("#.bend directive without a preceding .ent directive");
2713 return;
2714 }
2715
2716 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2717 ;
2718
2719 hash_ptr = hash_string (start,
2720 end_p1 - start,
2721 &orig_str_hash[0],
2722 (symint_t *) 0);
2723
2724 if (hash_ptr == (shash_t *) 0)
2725 {
2726 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2727 return;
2728 }
2729
2730 if (cur_oproc_begin == (SYMR *) 0)
2731 {
2732 error ("procedure table %.*s not found for #.bend",
2733 (int) (end_p1 - start), start);
2734 return;
2735 }
2736
2737 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2738 st_End, sc_Text,
2739 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2740 (symint_t) 0);
2741 }
2742
2743 \f
2744 /* Parse #.def directives, which are contain standard COFF subdirectives
2745 to describe the debugging format. These subdirectives include:
2746
2747 .scl specify storage class
2748 .val specify a value
2749 .endef specify end of COFF directives
2750 .type specify the type
2751 .size specify the size of an array
2752 .dim specify an array dimension
2753 .tag specify a tag for a struct, union, or enum. */
2754
2755 STATIC void
2756 parse_def (const char *name_start)
2757 {
2758 const char *dir_start; /* start of current directive*/
2759 const char *dir_end_p1; /* end+1 of current directive*/
2760 const char *arg_start; /* start of current argument */
2761 const char *arg_end_p1; /* end+1 of current argument */
2762 const char *name_end_p1; /* end+1 of label */
2763 const char *tag_start = 0; /* start of tag name */
2764 const char *tag_end_p1 = 0; /* end+1 of tag name */
2765 sc_t storage_class = sc_Nil;
2766 st_t symbol_type = st_Nil;
2767 type_info_t t;
2768 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2769 int is_function = 0; /* != 0 if function */
2770 symint_t value = 0;
2771 symint_t indx = cur_file_ptr->void_type;
2772 int error_line = 0;
2773 symint_t arg_number;
2774 symint_t temp_array[ N_TQ ];
2775 int arg_was_number;
2776 int ch, i;
2777 Ptrdiff_t len;
2778
2779 static int inside_enumeration = 0; /* is this an enumeration? */
2780
2781
2782 /* Initialize the type information. */
2783 t = type_info_init;
2784
2785
2786 /* Search for the end of the name being defined. */
2787 /* Allow spaces and such in names for G++ templates, which produce stabs
2788 that look like:
2789
2790 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2791
2792 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2793 ;
2794
2795 if (ch == '\0')
2796 {
2797 error_line = __LINE__;
2798 saber_stop ();
2799 goto bomb_out;
2800 }
2801
2802 /* Parse the remaining subdirectives now. */
2803 dir_start = name_end_p1+1;
2804 for (;;)
2805 {
2806 while ((ch = *dir_start) == ' ' || ch == '\t')
2807 ++dir_start;
2808
2809 if (ch != '.')
2810 {
2811 error_line = __LINE__;
2812 saber_stop ();
2813 goto bomb_out;
2814 }
2815
2816 /* Are we done? */
2817 if (dir_start[1] == 'e'
2818 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2819 break;
2820
2821 /* Pick up the subdirective now. */
2822 for (dir_end_p1 = dir_start+1;
2823 (ch = *dir_end_p1) != ' ' && ch != '\t';
2824 dir_end_p1++)
2825 {
2826 if (ch == '\0' || ISSPACE (ch))
2827 {
2828 error_line = __LINE__;
2829 saber_stop ();
2830 goto bomb_out;
2831 }
2832 }
2833
2834 /* Pick up the subdirective argument now. */
2835 arg_was_number = arg_number = 0;
2836 arg_end_p1 = 0;
2837 arg_start = dir_end_p1+1;
2838 ch = *arg_start;
2839 while (ch == ' ' || ch == '\t')
2840 ch = *++arg_start;
2841
2842 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2843 {
2844 int ch2;
2845 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2846 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2847 arg_was_number++;
2848 }
2849
2850 else if (ch == '\0' || ISSPACE (ch))
2851 {
2852 error_line = __LINE__;
2853 saber_stop ();
2854 goto bomb_out;
2855 }
2856
2857 if (!arg_was_number)
2858 {
2859 /* Allow spaces and such in names for G++ templates. */
2860 for (arg_end_p1 = arg_start+1;
2861 (ch = *arg_end_p1) != ';' && ch != '\0';
2862 arg_end_p1++)
2863 ;
2864
2865 if (ch == '\0')
2866 {
2867 error_line = __LINE__;
2868 saber_stop ();
2869 goto bomb_out;
2870 }
2871 }
2872
2873 /* Classify the directives now. */
2874 len = dir_end_p1 - dir_start;
2875 switch (dir_start[1])
2876 {
2877 default:
2878 error_line = __LINE__;
2879 saber_stop ();
2880 goto bomb_out;
2881
2882 case 'd':
2883 if (len == sizeof (".dim")-1
2884 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2885 && arg_was_number)
2886 {
2887 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2888
2889 *t_ptr = arg_number;
2890 while (*arg_end_p1 == ',' && arg_was_number)
2891 {
2892 arg_start = arg_end_p1+1;
2893 ch = *arg_start;
2894 while (ch == ' ' || ch == '\t')
2895 ch = *++arg_start;
2896
2897 arg_was_number = 0;
2898 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2899 {
2900 int ch2;
2901 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2902 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2903 arg_was_number++;
2904
2905 if (t_ptr == &temp_array[0])
2906 {
2907 error_line = __LINE__;
2908 saber_stop ();
2909 goto bomb_out;
2910 }
2911
2912 *--t_ptr = arg_number;
2913 }
2914 }
2915
2916 /* Reverse order of dimensions. */
2917 while (t_ptr <= &temp_array[ N_TQ-1 ])
2918 {
2919 if (t.num_dims >= N_TQ-1)
2920 {
2921 error_line = __LINE__;
2922 saber_stop ();
2923 goto bomb_out;
2924 }
2925
2926 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2927 }
2928 break;
2929 }
2930 else
2931 {
2932 error_line = __LINE__;
2933 saber_stop ();
2934 goto bomb_out;
2935 }
2936
2937
2938 case 's':
2939 if (len == sizeof (".scl")-1
2940 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2941 && arg_was_number
2942 && arg_number < ((symint_t) C_MAX))
2943 {
2944 /* If the symbol is a static or external, we have
2945 already gotten the appropriate type and class, so
2946 make sure we don't override those values. This is
2947 needed because there are some type and classes that
2948 are not in COFF, such as short data, etc. */
2949 if (symbol_type == st_Nil)
2950 {
2951 symbol_type = map_coff_sym_type[arg_number];
2952 storage_class = map_coff_storage [arg_number];
2953 }
2954 break;
2955 }
2956
2957 else if (len == sizeof (".size")-1
2958 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2959 && arg_was_number)
2960 {
2961 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2962
2963 *t_ptr = arg_number;
2964 while (*arg_end_p1 == ',' && arg_was_number)
2965 {
2966 arg_start = arg_end_p1+1;
2967 ch = *arg_start;
2968 while (ch == ' ' || ch == '\t')
2969 ch = *++arg_start;
2970
2971 arg_was_number = 0;
2972 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2973 {
2974 int ch2;
2975 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2976 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2977 arg_was_number++;
2978
2979 if (t_ptr == &temp_array[0])
2980 {
2981 error_line = __LINE__;
2982 saber_stop ();
2983 goto bomb_out;
2984 }
2985
2986 *--t_ptr = arg_number;
2987 }
2988 }
2989
2990 /* Reverse order of sizes. */
2991 while (t_ptr <= &temp_array[ N_TQ-1 ])
2992 {
2993 if (t.num_sizes >= N_TQ-1)
2994 {
2995 error_line = __LINE__;
2996 saber_stop ();
2997 goto bomb_out;
2998 }
2999
3000 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3001 }
3002 break;
3003 }
3004
3005 else
3006 {
3007 error_line = __LINE__;
3008 saber_stop ();
3009 goto bomb_out;
3010 }
3011
3012
3013 case 't':
3014 if (len == sizeof (".type")-1
3015 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3016 && arg_was_number)
3017 {
3018 tq_t *tq_ptr = &t.type_qualifiers[0];
3019
3020 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3021 t.basic_type = map_coff_types [(int) t.orig_type];
3022 for (i = N_TQ-1; i >= 0; i--)
3023 {
3024 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3025 & N_TMASK);
3026
3027 if (dt != (int) DT_NON)
3028 *tq_ptr++ = map_coff_derived_type [dt];
3029 }
3030
3031 /* If this is a function, ignore it, so that we don't get
3032 two entries (one from the .ent, and one for the .def
3033 that precedes it). Save the type information so that
3034 the end block can properly add it after the begin block
3035 index. For MIPS knows what reason, we must strip off
3036 the function type at this point. */
3037 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3038 {
3039 is_function = 1;
3040 tq_ptr[-1] = tq_Nil;
3041 }
3042
3043 break;
3044 }
3045
3046 else if (len == sizeof (".tag")-1
3047 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3048 {
3049 tag_start = arg_start;
3050 tag_end_p1 = arg_end_p1;
3051 break;
3052 }
3053
3054 else
3055 {
3056 error_line = __LINE__;
3057 saber_stop ();
3058 goto bomb_out;
3059 }
3060
3061
3062 case 'v':
3063 if (len == sizeof (".val")-1
3064 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3065 {
3066 if (arg_was_number)
3067 value = arg_number;
3068
3069 /* If the value is not an integer value, it must be the
3070 name of a static or global item. Look up the name in
3071 the original symbol table to pick up the storage
3072 class, symbol type, etc. */
3073 else
3074 {
3075 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3076 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3077
3078 ext_hash_ptr = hash_string (arg_start,
3079 arg_end_p1 - arg_start,
3080 &ext_str_hash[0],
3081 (symint_t *) 0);
3082
3083 if (ext_hash_ptr != (shash_t *) 0
3084 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3085 eptr = ext_hash_ptr->esym_ptr;
3086
3087 orig_hash_ptr = hash_string (arg_start,
3088 arg_end_p1 - arg_start,
3089 &orig_str_hash[0],
3090 (symint_t *) 0);
3091
3092 if ((orig_hash_ptr == (shash_t *) 0
3093 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3094 && eptr == (EXTR *) 0)
3095 {
3096 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3097 (int) (arg_end_p1 - arg_start),
3098 arg_start);
3099 value = 0;
3100 }
3101 else
3102 {
3103 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3104 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3105 ? orig_hash_ptr->sym_ptr
3106 : &eptr->asym;
3107
3108 symbol_type = (st_t) ptr->st;
3109 storage_class = (sc_t) ptr->sc;
3110 value = ptr->value;
3111 }
3112 }
3113 break;
3114 }
3115 else
3116 {
3117 error_line = __LINE__;
3118 saber_stop ();
3119 goto bomb_out;
3120 }
3121 }
3122
3123 /* Set up to find next directive. */
3124 dir_start = arg_end_p1 + 1;
3125 }
3126
3127
3128 if (storage_class == sc_Bits)
3129 {
3130 t.bitfield = 1;
3131 t.extra_sizes = 1;
3132 }
3133 else
3134 t.extra_sizes = 0;
3135
3136 if (t.num_dims > 0)
3137 {
3138 int num_real_sizes = t.num_sizes - t.extra_sizes;
3139 int diff = t.num_dims - num_real_sizes;
3140 int i = t.num_dims - 1;
3141 int j;
3142
3143 if (num_real_sizes != 1 || diff < 0)
3144 {
3145 error_line = __LINE__;
3146 saber_stop ();
3147 goto bomb_out;
3148 }
3149
3150 /* If this is an array, make sure the same number of dimensions
3151 and sizes were passed, creating extra sizes for multiply
3152 dimensioned arrays if not passed. */
3153
3154 if (diff)
3155 {
3156 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3157 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3158
3159 t.num_sizes = i + 1;
3160 for ( i--; i >= 0; i-- )
3161 {
3162 if (t.dimensions[ i+1 ])
3163 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3164 else
3165 t.sizes[ i ] = t.sizes[ i+1 ];
3166 }
3167 }
3168 }
3169
3170 /* Except for enumeration members & begin/ending of scopes, put the
3171 type word in the aux. symbol table. */
3172
3173 if (symbol_type == st_Block || symbol_type == st_End)
3174 indx = 0;
3175
3176 else if (inside_enumeration)
3177 indx = cur_file_ptr->void_type;
3178
3179 else
3180 {
3181 if (t.basic_type == bt_Struct
3182 || t.basic_type == bt_Union
3183 || t.basic_type == bt_Enum)
3184 {
3185 if (tag_start == (char *) 0)
3186 {
3187 error ("no tag specified for %.*s",
3188 (int) (name_end_p1 - name_start),
3189 name_start);
3190 return;
3191 }
3192
3193 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3194 t.basic_type);
3195 }
3196
3197 if (is_function)
3198 {
3199 last_func_type_info = t;
3200 last_func_eptr = eptr;
3201 return;
3202 }
3203
3204 indx = add_aux_sym_tir (&t,
3205 hash_yes,
3206 &cur_file_ptr->thash_head[0]);
3207 }
3208
3209
3210 /* If this is an external or static symbol, update the appropriate
3211 external symbol. */
3212
3213 if (eptr != (EXTR *) 0
3214 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3215 {
3216 eptr->ifd = cur_file_ptr->file_index;
3217 eptr->asym.index = indx;
3218 }
3219
3220
3221 /* Do any last minute adjustments that are necessary. */
3222 switch (symbol_type)
3223 {
3224 default:
3225 break;
3226
3227
3228 /* For the beginning of structs, unions, and enumerations, the
3229 size info needs to be passed in the value field. */
3230
3231 case st_Block:
3232 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3233 {
3234 error_line = __LINE__;
3235 saber_stop ();
3236 goto bomb_out;
3237 }
3238
3239 else
3240 value = t.sizes[0];
3241
3242 inside_enumeration = (t.orig_type == T_ENUM);
3243 break;
3244
3245
3246 /* For the end of structs, unions, and enumerations, omit the
3247 name which is always ".eos". This needs to be done last, so
3248 that any error reporting above gives the correct name. */
3249
3250 case st_End:
3251 name_start = name_end_p1 = 0;
3252 value = inside_enumeration = 0;
3253 break;
3254
3255
3256 /* Members of structures and unions that aren't bitfields, need
3257 to adjust the value from a byte offset to a bit offset.
3258 Members of enumerations do not have the value adjusted, and
3259 can be distinguished by indx == indexNil. For enumerations,
3260 update the maximum enumeration value. */
3261
3262 case st_Member:
3263 if (!t.bitfield && !inside_enumeration)
3264 value *= 8;
3265
3266 break;
3267 }
3268
3269
3270 /* Add the symbol, except for global symbols outside of functions,
3271 for which the external symbol table is fine enough. */
3272
3273 if (eptr == (EXTR *) 0
3274 || eptr->asym.st == (int) st_Nil
3275 || cur_proc_ptr != (PDR *) 0)
3276 {
3277 symint_t isym = add_local_symbol (name_start, name_end_p1,
3278 symbol_type, storage_class,
3279 value,
3280 indx);
3281
3282 /* Deal with struct, union, and enum tags. */
3283 if (symbol_type == st_Block)
3284 {
3285 /* Create or update the tag information. */
3286 tag_t *tag_ptr = get_tag (name_start,
3287 name_end_p1,
3288 isym,
3289 t.basic_type);
3290
3291 /* If there are any forward references, fill in the appropriate
3292 file and symbol indexes. */
3293
3294 symint_t file_index = cur_file_ptr->file_index;
3295 forward_t *f_next = tag_ptr->forward_ref;
3296 forward_t *f_cur;
3297
3298 while (f_next != (forward_t *) 0)
3299 {
3300 f_cur = f_next;
3301 f_next = f_next->next;
3302
3303 f_cur->ifd_ptr->isym = file_index;
3304 f_cur->index_ptr->rndx.index = isym;
3305
3306 free_forward (f_cur);
3307 }
3308
3309 tag_ptr->forward_ref = (forward_t *) 0;
3310 }
3311 }
3312
3313 /* Normal return */
3314 return;
3315
3316 /* Error return, issue message. */
3317 bomb_out:
3318 if (error_line)
3319 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3320 else
3321 error ("compiler error, badly formed #.def");
3322
3323 return;
3324 }
3325
3326 \f
3327 /* Parse .end directives. */
3328
3329 STATIC void
3330 parse_end (const char *start)
3331 {
3332 const char *start_func, *end_func_p1;
3333 int ch;
3334 symint_t value;
3335 FDR *orig_fdr;
3336
3337 if (cur_file_ptr == (efdr_t *) 0)
3338 {
3339 error (".end directive without a preceding .file directive");
3340 return;
3341 }
3342
3343 if (cur_proc_ptr == (PDR *) 0)
3344 {
3345 error (".end directive without a preceding .ent directive");
3346 return;
3347 }
3348
3349 /* Get the function name, skipping whitespace. */
3350 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3351 ;
3352
3353 ch = *start_func;
3354 if (!IS_ASM_IDENT (ch))
3355 {
3356 error (".end directive has no name");
3357 return;
3358 }
3359
3360 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3361 ;
3362
3363
3364 /* Get the value field for creating the end from the original object
3365 file (which we find by locating the procedure start, and using the
3366 pointer to the end+1 block and backing up. The index points to a
3367 two word aux. symbol, whose first word is the index of the end
3368 symbol, and the second word is the type of the function return
3369 value. */
3370
3371 orig_fdr = cur_file_ptr->orig_fdr;
3372 value = 0;
3373 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3374 value = cur_oproc_end->value;
3375
3376 else
3377 error ("cannot find .end block for %.*s",
3378 (int) (end_func_p1 - start_func), start_func);
3379
3380 (void) add_local_symbol (start_func, end_func_p1,
3381 st_End, sc_Text,
3382 value,
3383 (symint_t) 0);
3384
3385 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3386 }
3387
3388 \f
3389 /* Parse .ent directives. */
3390
3391 STATIC void
3392 parse_ent (const char *start)
3393 {
3394 const char *start_func, *end_func_p1;
3395 int ch;
3396
3397 if (cur_file_ptr == (efdr_t *) 0)
3398 {
3399 error (".ent directive without a preceding .file directive");
3400 return;
3401 }
3402
3403 if (cur_proc_ptr != (PDR *) 0)
3404 {
3405 error ("second .ent directive found before .end directive");
3406 return;
3407 }
3408
3409 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3410 ;
3411
3412 ch = *start_func;
3413 if (!IS_ASM_IDENT (ch))
3414 {
3415 error (".ent directive has no name");
3416 return;
3417 }
3418
3419 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3420 ;
3421
3422 (void) add_procedure (start_func, end_func_p1);
3423 }
3424
3425 \f
3426 /* Parse .file directives. */
3427
3428 STATIC void
3429 parse_file (const char *start)
3430 {
3431 char *p;
3432 char *start_name, *end_name_p1;
3433
3434 (void) strtol (start, &p, 0);
3435 if (start == p
3436 || (start_name = strchr (p, '"')) == (char *) 0
3437 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3438 {
3439 error ("invalid .file directive");
3440 return;
3441 }
3442
3443 if (cur_proc_ptr != (PDR *) 0)
3444 {
3445 error ("no way to handle .file within .ent/.end section");
3446 return;
3447 }
3448
3449 add_file (start_name, end_name_p1);
3450 }
3451
3452 \f
3453 /* Make sure the @stabs symbol is emitted. */
3454
3455 static void
3456 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3457 {
3458 if (!stabs_seen)
3459 {
3460 /* Add a dummy @stabs symbol. */
3461 stabs_seen = 1;
3462 (void) add_local_symbol (stabs_symbol,
3463 stabs_symbol + sizeof (stabs_symbol),
3464 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3465
3466 }
3467 }
3468
3469 \f
3470 /* Parse .stabs directives.
3471
3472 .stabs directives have five fields:
3473 "string" a string, encoding the type information.
3474 code a numeric code, defined in <stab.h>
3475 0 a zero
3476 0 a zero or line number
3477 value a numeric value or an address.
3478
3479 If the value is relocatable, we transform this into:
3480 iss points as an index into string space
3481 value value from lookup of the name
3482 st st from lookup of the name
3483 sc sc from lookup of the name
3484 index code|CODE_MASK
3485
3486 If the value is not relocatable, we transform this into:
3487 iss points as an index into string space
3488 value value
3489 st st_Nil
3490 sc sc_Nil
3491 index code|CODE_MASK
3492
3493 .stabn directives have four fields (string is null):
3494 code a numeric code, defined in <stab.h>
3495 0 a zero
3496 0 a zero or a line number
3497 value a numeric value or an address. */
3498
3499 STATIC void
3500 parse_stabs_common (const char *string_start, /* start of string or NULL */
3501 const char *string_end, /* end+1 of string or NULL */
3502 const char *rest) /* rest of the directive. */
3503 {
3504 efdr_t *save_file_ptr = cur_file_ptr;
3505 symint_t code;
3506 symint_t value;
3507 char *p;
3508 st_t st;
3509 sc_t sc;
3510 int ch;
3511
3512 if (stabs_seen == 0)
3513 mark_stabs ("");
3514
3515 /* Read code from stabs. */
3516 if (!ISDIGIT (*rest))
3517 {
3518 error ("invalid .stabs/.stabn directive, code is non-numeric");
3519 return;
3520 }
3521
3522 code = strtol (rest, &p, 0);
3523
3524 /* Line number stabs are handled differently, since they have two values,
3525 the line number and the address of the label. We use the index field
3526 (aka code) to hold the line number, and the value field to hold the
3527 address. The symbol type is st_Label, which should be different from
3528 the other stabs, so that gdb can recognize it. */
3529
3530 if (code == (int) N_SLINE)
3531 {
3532 SYMR *sym_ptr, dummy_symr;
3533 shash_t *shash_ptr;
3534
3535 /* Skip ,0, */
3536 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3537 {
3538 error ("invalid line number .stabs/.stabn directive");
3539 return;
3540 }
3541
3542 code = strtol (p+3, &p, 0);
3543 ch = *++p;
3544 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3545 {
3546 error ("invalid line number .stabs/.stabn directive");
3547 return;
3548 }
3549
3550 dummy_symr.index = code;
3551 if (dummy_symr.index != code)
3552 {
3553 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3554 code);
3555
3556 return;
3557 }
3558
3559 shash_ptr = hash_string (p,
3560 strlen (p) - 1,
3561 &orig_str_hash[0],
3562 (symint_t *) 0);
3563
3564 if (shash_ptr == (shash_t *) 0
3565 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3566 {
3567 error ("invalid .stabs/.stabn directive, value not found");
3568 return;
3569 }
3570
3571 if ((st_t) sym_ptr->st != st_Label)
3572 {
3573 error ("invalid line number .stabs/.stabn directive");
3574 return;
3575 }
3576
3577 st = st_Label;
3578 sc = (sc_t) sym_ptr->sc;
3579 value = sym_ptr->value;
3580 }
3581 else
3582 {
3583 /* Skip ,<num>,<num>, */
3584 if (*p++ != ',')
3585 goto failure;
3586 for (; ISDIGIT (*p); p++)
3587 ;
3588 if (*p++ != ',')
3589 goto failure;
3590 for (; ISDIGIT (*p); p++)
3591 ;
3592 if (*p++ != ',')
3593 goto failure;
3594 ch = *p;
3595 if (!IS_ASM_IDENT (ch) && ch != '-')
3596 {
3597 failure:
3598 error ("invalid .stabs/.stabn directive, bad character");
3599 return;
3600 }
3601
3602 if (ISDIGIT (ch) || ch == '-')
3603 {
3604 st = st_Nil;
3605 sc = sc_Nil;
3606 value = strtol (p, &p, 0);
3607 if (*p != '\n')
3608 {
3609 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3610 return;
3611 }
3612 }
3613 else if (!IS_ASM_IDENT (ch))
3614 {
3615 error ("invalid .stabs/.stabn directive, bad character");
3616 return;
3617 }
3618 else
3619 {
3620 SYMR *sym_ptr;
3621 shash_t *shash_ptr;
3622 const char *start, *end_p1;
3623
3624 start = p;
3625 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3626 {
3627 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3628 end_p1 = start + strlen (start) - 1;
3629 }
3630
3631 shash_ptr = hash_string (start,
3632 end_p1 - start,
3633 &orig_str_hash[0],
3634 (symint_t *) 0);
3635
3636 if (shash_ptr == (shash_t *) 0
3637 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3638 {
3639 shash_ptr = hash_string (start,
3640 end_p1 - start,
3641 &ext_str_hash[0],
3642 (symint_t *) 0);
3643
3644 if (shash_ptr == (shash_t *) 0
3645 || shash_ptr->esym_ptr == (EXTR *) 0)
3646 {
3647 error ("invalid .stabs/.stabn directive, value not found");
3648 return;
3649 }
3650 else
3651 sym_ptr = &(shash_ptr->esym_ptr->asym);
3652 }
3653
3654 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3655 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3656 {
3657 sc = scNil;
3658 st = stNil;
3659 }
3660 else
3661 {
3662 sc = (sc_t) sym_ptr->sc;
3663 st = (st_t) sym_ptr->st;
3664 }
3665 value = sym_ptr->value;
3666
3667 ch = *end_p1++;
3668 if (ch != '\n')
3669 {
3670 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3671 || ((ch != '+') && (ch != '-')))
3672 {
3673 error ("invalid .stabs/.stabn directive, badly formed value");
3674 return;
3675 }
3676 if (ch == '+')
3677 value += strtol (end_p1, &p, 0);
3678 else if (ch == '-')
3679 value -= strtol (end_p1, &p, 0);
3680
3681 if (*p != '\n')
3682 {
3683 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3684 return;
3685 }
3686 }
3687 }
3688 code = MIPS_MARK_STAB (code);
3689 }
3690
3691 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3692 /* Restore normal file type. */
3693 cur_file_ptr = save_file_ptr;
3694 }
3695
3696
3697 STATIC void
3698 parse_stabs (const char *start)
3699 {
3700 const char *end = strchr (start+1, '"');
3701
3702 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3703 {
3704 error ("invalid .stabs directive, no string");
3705 return;
3706 }
3707
3708 parse_stabs_common (start+1, end, end+2);
3709 }
3710
3711
3712 STATIC void
3713 parse_stabn (const char *start)
3714 {
3715 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3716 }
3717
3718 \f
3719 /* Parse the input file, and write the lines to the output file
3720 if needed. */
3721
3722 STATIC void
3723 parse_input (void)
3724 {
3725 char *p;
3726 Size_t i;
3727 thead_t *ptag_head;
3728 tag_t *ptag;
3729 tag_t *ptag_next;
3730
3731 if (debug)
3732 fprintf (stderr, "\tinput\n");
3733
3734 /* Add a dummy scope block around the entire compilation unit for
3735 structures defined outside of blocks. */
3736 ptag_head = allocate_thead ();
3737 ptag_head->first_tag = 0;
3738 ptag_head->prev = cur_tag_head;
3739 cur_tag_head = ptag_head;
3740
3741 while ((p = read_line ()) != (char *) 0)
3742 {
3743 /* Skip leading blanks. */
3744 while (ISSPACE ((unsigned char)*p))
3745 p++;
3746
3747 /* See if it's a directive we handle. If so, dispatch handler. */
3748 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3749 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3750 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3751 {
3752 p += pseudo_ops[i].len; /* skip to first argument */
3753 while (ISSPACE ((unsigned char)*p))
3754 p++;
3755
3756 (*pseudo_ops[i].func)( p );
3757 break;
3758 }
3759 }
3760
3761 /* Process any tags at global level. */
3762 ptag_head = cur_tag_head;
3763 cur_tag_head = ptag_head->prev;
3764
3765 for (ptag = ptag_head->first_tag;
3766 ptag != (tag_t *) 0;
3767 ptag = ptag_next)
3768 {
3769 if (ptag->forward_ref != (forward_t *) 0)
3770 add_unknown_tag (ptag);
3771
3772 ptag_next = ptag->same_block;
3773 ptag->hash_ptr->tag_ptr = ptag->same_name;
3774 free_tag (ptag);
3775 }
3776
3777 free_thead (ptag_head);
3778
3779 }
3780
3781 \f
3782 /* Update the global headers with the final offsets in preparation
3783 to write out the .T file. */
3784
3785 STATIC void
3786 update_headers (void)
3787 {
3788 symint_t i;
3789 efdr_t *file_ptr;
3790
3791 /* Set up the symbolic header. */
3792 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3793 symbolic_header.magic = orig_sym_hdr.magic;
3794 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3795
3796 /* Set up global counts. */
3797 symbolic_header.issExtMax = ext_strings.num_allocated;
3798 symbolic_header.idnMax = dense_num.num_allocated;
3799 symbolic_header.ifdMax = file_desc.num_allocated;
3800 symbolic_header.iextMax = ext_symbols.num_allocated;
3801 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3802 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3803 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3804 symbolic_header.crfd = orig_sym_hdr.crfd;
3805
3806
3807 /* Loop through each file, figuring out how many local syms,
3808 line numbers, etc. there are. Also, put out end symbol
3809 for the filename. */
3810
3811 for (file_ptr = first_file;
3812 file_ptr != (efdr_t *) 0;
3813 file_ptr = file_ptr->next_file)
3814 {
3815 SYMR *sym_start;
3816 SYMR *sym;
3817 SYMR *sym_end_p1;
3818 FDR *fd_ptr = file_ptr->orig_fdr;
3819
3820 cur_file_ptr = file_ptr;
3821
3822 /* Copy st_Static symbols from the original local symbol table if
3823 they did not get added to the new local symbol table.
3824 This happens with stabs-in-ecoff or if the source file is
3825 compiled without debugging. */
3826 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3827 sym_end_p1 = sym_start + fd_ptr->csym;
3828 for (sym = sym_start; sym < sym_end_p1; sym++)
3829 {
3830 if ((st_t) sym->st == st_Static)
3831 {
3832 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3833 Size_t len = strlen (str);
3834 shash_t *hash_ptr;
3835
3836 /* Ignore internal labels. */
3837 if (str[0] == '$' && str[1] == 'L')
3838 continue;
3839 hash_ptr = hash_string (str,
3840 (Ptrdiff_t) len,
3841 &file_ptr->shash_head[0],
3842 (symint_t *) 0);
3843 if (hash_ptr == (shash_t *) 0)
3844 {
3845 (void) add_local_symbol (str, str + len,
3846 (st_t) sym->st, (sc_t) sym->sc,
3847 (symint_t) sym->value,
3848 (symint_t) indexNil);
3849 }
3850 }
3851 }
3852 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3853 st_End, sc_Text,
3854 (symint_t) 0,
3855 (symint_t) 0);
3856
3857 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3858 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3859 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3860
3861 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3862 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3863 symbolic_header.isymMax += file_ptr->fdr.csym;
3864
3865 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3866 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3867 symbolic_header.iauxMax += file_ptr->fdr.caux;
3868
3869 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3870 file_ptr->fdr.issBase = symbolic_header.issMax;
3871 symbolic_header.issMax += file_ptr->fdr.cbSs;
3872 }
3873
3874 #ifndef ALIGN_SYMTABLE_OFFSET
3875 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3876 #endif
3877
3878 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3879 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3880 if (i > 0)
3881 {
3882 symbolic_header.cbLineOffset = file_offset;
3883 file_offset += i;
3884 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3885 }
3886
3887 i = symbolic_header.ioptMax; /* optimization symbols */
3888 if (((long) i) > 0)
3889 {
3890 symbolic_header.cbOptOffset = file_offset;
3891 file_offset += i * sizeof (OPTR);
3892 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3893 }
3894
3895 i = symbolic_header.idnMax; /* dense numbers */
3896 if (i > 0)
3897 {
3898 symbolic_header.cbDnOffset = file_offset;
3899 file_offset += i * sizeof (DNR);
3900 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3901 }
3902
3903 i = symbolic_header.ipdMax; /* procedure tables */
3904 if (i > 0)
3905 {
3906 symbolic_header.cbPdOffset = file_offset;
3907 file_offset += i * sizeof (PDR);
3908 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3909 }
3910
3911 i = symbolic_header.isymMax; /* local symbols */
3912 if (i > 0)
3913 {
3914 symbolic_header.cbSymOffset = file_offset;
3915 file_offset += i * sizeof (SYMR);
3916 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3917 }
3918
3919 i = symbolic_header.iauxMax; /* aux syms. */
3920 if (i > 0)
3921 {
3922 symbolic_header.cbAuxOffset = file_offset;
3923 file_offset += i * sizeof (TIR);
3924 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3925 }
3926
3927 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3928 if (i > 0)
3929 {
3930 symbolic_header.cbSsOffset = file_offset;
3931 file_offset += i;
3932 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3933 }
3934
3935 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3936 if (i > 0)
3937 {
3938 symbolic_header.cbSsExtOffset = file_offset;
3939 file_offset += i;
3940 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3941 }
3942
3943 i = symbolic_header.ifdMax; /* file tables */
3944 if (i > 0)
3945 {
3946 symbolic_header.cbFdOffset = file_offset;
3947 file_offset += i * sizeof (FDR);
3948 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3949 }
3950
3951 i = symbolic_header.crfd; /* relative file descriptors */
3952 if (i > 0)
3953 {
3954 symbolic_header.cbRfdOffset = file_offset;
3955 file_offset += i * sizeof (symint_t);
3956 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3957 }
3958
3959 i = symbolic_header.iextMax; /* external symbols */
3960 if (i > 0)
3961 {
3962 symbolic_header.cbExtOffset = file_offset;
3963 file_offset += i * sizeof (EXTR);
3964 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3965 }
3966 }
3967
3968 \f
3969 /* Write out a varray at a given location. */
3970
3971 STATIC void
3972 write_varray (varray_t *vp, /* virtual array */
3973 off_t offset, /* offset to write varray to */
3974 const char *str) /* string to print out when tracing */
3975 {
3976 int num_write, sys_write;
3977 vlinks_t *ptr;
3978
3979 if (vp->num_allocated == 0)
3980 return;
3981
3982 if (debug)
3983 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n",
3984 (void *) vp, (unsigned long) offset,
3985 vp->num_allocated * vp->object_size, str);
3986
3987 if (file_offset != (unsigned long) offset
3988 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
3989 pfatal_with_name (object_name);
3990
3991 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
3992 {
3993 num_write = (ptr->next == (vlinks_t *) 0)
3994 ? vp->objects_last_page * vp->object_size
3995 : vp->objects_per_page * vp->object_size;
3996
3997 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
3998 if (sys_write <= 0)
3999 pfatal_with_name (object_name);
4000
4001 else if (sys_write != num_write)
4002 fatal ("wrote %d bytes to %s, system returned %d",
4003 num_write,
4004 object_name,
4005 sys_write);
4006
4007 file_offset += num_write;
4008 }
4009 }
4010
4011 \f
4012 /* Write out the symbol table in the object file. */
4013
4014 STATIC void
4015 write_object (void)
4016 {
4017 int sys_write;
4018 efdr_t *file_ptr;
4019 off_t offset;
4020
4021 if (debug)
4022 fprintf (stderr, "\n\twrite\tvp = %p, offset = %7u, size = %7lu, %s\n",
4023 (void *) &symbolic_header, 0,
4024 (unsigned long) sizeof (symbolic_header), "symbolic header");
4025
4026 sys_write = fwrite (&symbolic_header,
4027 1,
4028 sizeof (symbolic_header),
4029 object_stream);
4030
4031 if (sys_write < 0)
4032 pfatal_with_name (object_name);
4033
4034 else if (sys_write != sizeof (symbolic_header))
4035 fatal ("wrote %d bytes to %s, system returned %d",
4036 (int) sizeof (symbolic_header),
4037 object_name,
4038 sys_write);
4039
4040
4041 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4042
4043 if (symbolic_header.cbLine > 0) /* line numbers */
4044 {
4045 long sys_write;
4046
4047 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4048 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4049 pfatal_with_name (object_name);
4050
4051 if (debug)
4052 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4053 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4054 (long) symbolic_header.cbLine, "Line numbers");
4055
4056 sys_write = fwrite (orig_linenum,
4057 1,
4058 symbolic_header.cbLine,
4059 object_stream);
4060
4061 if (sys_write <= 0)
4062 pfatal_with_name (object_name);
4063
4064 else if (sys_write != symbolic_header.cbLine)
4065 fatal ("wrote %ld bytes to %s, system returned %ld",
4066 (long) symbolic_header.cbLine,
4067 object_name,
4068 sys_write);
4069
4070 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4071 }
4072
4073 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4074 {
4075 long sys_write;
4076 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4077
4078 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4079 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4080 pfatal_with_name (object_name);
4081
4082 if (debug)
4083 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4084 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4085 num_write, "Optimizer symbols");
4086
4087 sys_write = fwrite (orig_opt_syms,
4088 1,
4089 num_write,
4090 object_stream);
4091
4092 if (sys_write <= 0)
4093 pfatal_with_name (object_name);
4094
4095 else if (sys_write != num_write)
4096 fatal ("wrote %ld bytes to %s, system returned %ld",
4097 num_write,
4098 object_name,
4099 sys_write);
4100
4101 file_offset = symbolic_header.cbOptOffset + num_write;
4102 }
4103
4104 if (symbolic_header.idnMax > 0) /* dense numbers */
4105 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4106
4107 if (symbolic_header.ipdMax > 0) /* procedure tables */
4108 {
4109 offset = symbolic_header.cbPdOffset;
4110 for (file_ptr = first_file;
4111 file_ptr != (efdr_t *) 0;
4112 file_ptr = file_ptr->next_file)
4113 {
4114 write_varray (&file_ptr->procs, offset, "Procedure tables");
4115 offset = file_offset;
4116 }
4117 }
4118
4119 if (symbolic_header.isymMax > 0) /* local symbols */
4120 {
4121 offset = symbolic_header.cbSymOffset;
4122 for (file_ptr = first_file;
4123 file_ptr != (efdr_t *) 0;
4124 file_ptr = file_ptr->next_file)
4125 {
4126 write_varray (&file_ptr->symbols, offset, "Local symbols");
4127 offset = file_offset;
4128 }
4129 }
4130
4131 if (symbolic_header.iauxMax > 0) /* aux symbols */
4132 {
4133 offset = symbolic_header.cbAuxOffset;
4134 for (file_ptr = first_file;
4135 file_ptr != (efdr_t *) 0;
4136 file_ptr = file_ptr->next_file)
4137 {
4138 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4139 offset = file_offset;
4140 }
4141 }
4142
4143 if (symbolic_header.issMax > 0) /* local strings */
4144 {
4145 offset = symbolic_header.cbSsOffset;
4146 for (file_ptr = first_file;
4147 file_ptr != (efdr_t *) 0;
4148 file_ptr = file_ptr->next_file)
4149 {
4150 write_varray (&file_ptr->strings, offset, "Local strings");
4151 offset = file_offset;
4152 }
4153 }
4154
4155 if (symbolic_header.issExtMax > 0) /* external strings */
4156 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4157
4158 if (symbolic_header.ifdMax > 0) /* file tables */
4159 {
4160 offset = symbolic_header.cbFdOffset;
4161 if (file_offset != (unsigned long) offset
4162 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4163 pfatal_with_name (object_name);
4164
4165 file_offset = offset;
4166 for (file_ptr = first_file;
4167 file_ptr != (efdr_t *) 0;
4168 file_ptr = file_ptr->next_file)
4169 {
4170 if (debug)
4171 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4172 (void *) &file_ptr->fdr, file_offset,
4173 (unsigned long) sizeof (FDR), "File header");
4174
4175 sys_write = fwrite (&file_ptr->fdr,
4176 1,
4177 sizeof (FDR),
4178 object_stream);
4179
4180 if (sys_write < 0)
4181 pfatal_with_name (object_name);
4182
4183 else if (sys_write != sizeof (FDR))
4184 fatal ("wrote %d bytes to %s, system returned %d",
4185 (int) sizeof (FDR),
4186 object_name,
4187 sys_write);
4188
4189 file_offset = offset += sizeof (FDR);
4190 }
4191 }
4192
4193 if (symbolic_header.crfd > 0) /* relative file descriptors */
4194 {
4195 long sys_write;
4196 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4197
4198 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4199 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4200 pfatal_with_name (object_name);
4201
4202 if (debug)
4203 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4204 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4205 num_write, "Relative file descriptors");
4206
4207 sys_write = fwrite (orig_rfds,
4208 1,
4209 num_write,
4210 object_stream);
4211
4212 if (sys_write <= 0)
4213 pfatal_with_name (object_name);
4214
4215 else if (sys_write != (long) num_write)
4216 fatal ("wrote %lu bytes to %s, system returned %ld",
4217 num_write,
4218 object_name,
4219 sys_write);
4220
4221 file_offset = symbolic_header.cbRfdOffset + num_write;
4222 }
4223
4224 if (symbolic_header.issExtMax > 0) /* external symbols */
4225 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4226
4227 if (fclose (object_stream) != 0)
4228 pfatal_with_name (object_name);
4229 }
4230
4231 \f
4232 /* Read some bytes at a specified location, and return a pointer. */
4233
4234 STATIC page_t *
4235 read_seek (Size_t size, /* # bytes to read */
4236 off_t offset, /* offset to read at */
4237 const char *str) /* name for tracing */
4238 {
4239 page_t *ptr;
4240 long sys_read = 0;
4241
4242 if (size == 0) /* nothing to read */
4243 return (page_t *) 0;
4244
4245 if (debug)
4246 fprintf (stderr,
4247 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4248 (unsigned long) size, (unsigned long) offset, file_offset, str);
4249
4250 #ifndef MALLOC_CHECK
4251 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4252 #else
4253 ptr = xcalloc (1, size);
4254 #endif
4255
4256 /* If we need to seek, and the distance is nearby, just do some reads,
4257 to speed things up. */
4258 if (file_offset != (unsigned long) offset)
4259 {
4260 symint_t difference = offset - file_offset;
4261
4262 if (difference < 8)
4263 {
4264 char small_buffer[8];
4265
4266 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4267 if (sys_read <= 0)
4268 pfatal_with_name (obj_in_name);
4269
4270 if ((symint_t) sys_read != difference)
4271 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4272 (unsigned long) size,
4273 obj_in_name,
4274 sys_read);
4275 }
4276 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4277 pfatal_with_name (obj_in_name);
4278 }
4279
4280 sys_read = fread (ptr, 1, size, obj_in_stream);
4281 if (sys_read <= 0)
4282 pfatal_with_name (obj_in_name);
4283
4284 if (sys_read != (long) size)
4285 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4286 (unsigned long) size,
4287 obj_in_name,
4288 sys_read);
4289
4290 file_offset = offset + size;
4291
4292 if (file_offset > max_file_offset)
4293 max_file_offset = file_offset;
4294
4295 return ptr;
4296 }
4297
4298 \f
4299 /* Read the existing object file (and copy to the output object file
4300 if it is different from the input object file), and remove the old
4301 symbol table. */
4302
4303 STATIC void
4304 copy_object (void)
4305 {
4306 char buffer[ PAGE_SIZE ];
4307 int sys_read;
4308 int remaining;
4309 int num_write;
4310 int sys_write;
4311 int fd, es;
4312 int delete_ifd = 0;
4313 int *remap_file_number;
4314 struct stat stat_buf;
4315
4316 if (debug)
4317 fprintf (stderr, "\tcopy\n");
4318
4319 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4320 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4321 pfatal_with_name (obj_in_name);
4322
4323 sys_read = fread (&orig_file_header,
4324 1,
4325 sizeof (struct filehdr),
4326 obj_in_stream);
4327
4328 if (sys_read < 0)
4329 pfatal_with_name (obj_in_name);
4330
4331 else if (sys_read == 0 && feof (obj_in_stream))
4332 return; /* create a .T file sans file header */
4333
4334 else if (sys_read < (int) sizeof (struct filehdr))
4335 fatal ("wanted to read %d bytes from %s, system returned %d",
4336 (int) sizeof (struct filehdr),
4337 obj_in_name,
4338 sys_read);
4339
4340
4341 if (orig_file_header.f_nsyms != sizeof (HDRR))
4342 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4343 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4344
4345
4346 /* Read in the current symbolic header. */
4347 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4348 pfatal_with_name (input_name);
4349
4350 sys_read = fread (&orig_sym_hdr,
4351 1,
4352 sizeof (orig_sym_hdr),
4353 obj_in_stream);
4354
4355 if (sys_read < 0)
4356 pfatal_with_name (object_name);
4357
4358 else if (sys_read < (int) sizeof (struct filehdr))
4359 fatal ("wanted to read %d bytes from %s, system returned %d",
4360 (int) sizeof (struct filehdr),
4361 obj_in_name,
4362 sys_read);
4363
4364
4365 /* Read in each of the sections if they exist in the object file.
4366 We read things in in the order the mips assembler creates the
4367 sections, so in theory no extra seeks are done.
4368
4369 For simplicity sake, round each read up to a page boundary,
4370 we may want to revisit this later.... */
4371
4372 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4373
4374 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4375 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4376 orig_sym_hdr.cbLineOffset,
4377 "Line numbers");
4378
4379 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4380 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4381 orig_sym_hdr.cbPdOffset,
4382 "Procedure tables");
4383
4384 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4385 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4386 orig_sym_hdr.cbSymOffset,
4387 "Local symbols");
4388
4389 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4390 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4391 orig_sym_hdr.cbAuxOffset,
4392 "Aux. symbols");
4393
4394 if (orig_sym_hdr.issMax > 0) /* local strings */
4395 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4396 orig_sym_hdr.cbSsOffset,
4397 "Local strings");
4398
4399 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4400 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4401 orig_sym_hdr.cbSsExtOffset,
4402 "External strings");
4403
4404 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4405 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4406 orig_sym_hdr.cbFdOffset,
4407 "File tables");
4408
4409 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4410 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4411 orig_sym_hdr.cbRfdOffset,
4412 "Relative file descriptors");
4413
4414 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4415 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4416 orig_sym_hdr.cbExtOffset,
4417 "External symbols");
4418
4419 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4420 {
4421 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4422 orig_sym_hdr.cbDnOffset,
4423 "Dense numbers");
4424
4425 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4426 }
4427
4428 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4429 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4430 orig_sym_hdr.cbOptOffset,
4431 "Optimizer symbols");
4432
4433
4434
4435 /* The symbol table should be last. */
4436 if (max_file_offset != (unsigned long) stat_buf.st_size)
4437 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4438 max_file_offset,
4439 (long) stat_buf.st_size);
4440
4441
4442 /* If the first original file descriptor is a dummy which the assembler
4443 put out, but there are no symbols in it, skip it now. */
4444 if (orig_sym_hdr.ifdMax > 1
4445 && orig_files->csym == 2
4446 && orig_files->caux == 0)
4447 {
4448 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4449 char *suffix = strrchr (filename, '.');
4450
4451 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4452 delete_ifd = 1;
4453 }
4454
4455
4456 /* Create array to map original file numbers to the new file numbers
4457 (in case there are duplicate filenames, we collapse them into one
4458 file section, the MIPS assembler may or may not collapse them). */
4459
4460 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4461
4462 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4463 {
4464 FDR *fd_ptr = ORIG_FILES (fd);
4465 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4466
4467 /* file support itself. */
4468 add_file (filename, filename + strlen (filename));
4469 remap_file_number[fd] = cur_file_ptr->file_index;
4470 }
4471
4472 if (delete_ifd > 0) /* just in case */
4473 remap_file_number[0] = remap_file_number[1];
4474
4475
4476 /* Loop, adding each of the external symbols. These must be in
4477 order or otherwise we would have to change the relocation
4478 entries. We don't just call add_bytes, because we need to have
4479 the names put into the external hash table. We set the type to
4480 'void' for now, and parse_def will fill in the correct type if it
4481 is in the symbol table. We must add the external symbols before
4482 the locals, since the locals do lookups against the externals. */
4483
4484 if (debug)
4485 fprintf (stderr, "\tehash\n");
4486
4487 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4488 {
4489 EXTR *eptr = orig_ext_syms + es;
4490 int ifd = eptr->ifd;
4491
4492 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4493 ? remap_file_number[ ifd ] : ifd );
4494 }
4495
4496
4497 /* For each of the files in the object file, copy the symbols, and such
4498 into the varrays for the new object file. */
4499
4500 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4501 {
4502 FDR *fd_ptr = ORIG_FILES (fd);
4503 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4504 SYMR *sym_start;
4505 SYMR *sym;
4506 SYMR *sym_end_p1;
4507 PDR *proc_start;
4508 PDR *proc;
4509 PDR *proc_end_p1;
4510
4511 /* file support itself. */
4512 add_file (filename, filename + strlen (filename));
4513 cur_file_ptr->orig_fdr = fd_ptr;
4514
4515 /* Copy stuff that's just passed through (such as line #'s) */
4516 cur_file_ptr->fdr.adr = fd_ptr->adr;
4517 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4518 cur_file_ptr->fdr.cline = fd_ptr->cline;
4519 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4520 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4521 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4522 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4523 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4524 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4525 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4526
4527 if (debug)
4528 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4529
4530 /* For each of the static and global symbols defined, add them
4531 to the hash table of original symbols, so we can look up
4532 their values. */
4533
4534 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4535 sym_end_p1 = sym_start + fd_ptr->csym;
4536 for (sym = sym_start; sym < sym_end_p1; sym++)
4537 {
4538 switch ((st_t) sym->st)
4539 {
4540 default:
4541 break;
4542
4543 case st_Global:
4544 case st_Static:
4545 case st_Label:
4546 case st_Proc:
4547 case st_StaticProc:
4548 {
4549 auto symint_t hash_index;
4550 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4551 Size_t len = strlen (str);
4552 shash_t *shash_ptr = hash_string (str,
4553 (Ptrdiff_t) len,
4554 &orig_str_hash[0],
4555 &hash_index);
4556
4557 if (shash_ptr != (shash_t *) 0)
4558 error ("internal error, %s is already in original symbol table", str);
4559
4560 else
4561 {
4562 shash_ptr = allocate_shash ();
4563 shash_ptr->next = orig_str_hash[hash_index];
4564 orig_str_hash[hash_index] = shash_ptr;
4565
4566 shash_ptr->len = len;
4567 shash_ptr->indx = indexNil;
4568 shash_ptr->string = str;
4569 shash_ptr->sym_ptr = sym;
4570 }
4571 }
4572 break;
4573
4574 case st_End:
4575 if ((sc_t) sym->sc == sc_Text)
4576 {
4577 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4578
4579 if (*str != '\0')
4580 {
4581 Size_t len = strlen (str);
4582 shash_t *shash_ptr = hash_string (str,
4583 (Ptrdiff_t) len,
4584 &orig_str_hash[0],
4585 (symint_t *) 0);
4586
4587 if (shash_ptr != (shash_t *) 0)
4588 shash_ptr->end_ptr = sym;
4589 }
4590 }
4591 break;
4592
4593 }
4594 }
4595
4596 if (debug)
4597 {
4598 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4599 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4600 }
4601
4602 /* Go through each of the procedures in this file, and add the
4603 procedure pointer to the hash entry for the given name. */
4604
4605 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4606 proc_end_p1 = proc_start + fd_ptr->cpd;
4607 for (proc = proc_start; proc < proc_end_p1; proc++)
4608 {
4609 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4610 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4611 Size_t len = strlen (str);
4612 shash_t *shash_ptr = hash_string (str,
4613 (Ptrdiff_t) len,
4614 &orig_str_hash[0],
4615 (symint_t *) 0);
4616
4617 if (shash_ptr == (shash_t *) 0)
4618 error ("internal error, function %s is not in original symbol table", str);
4619
4620 else
4621 shash_ptr->proc_ptr = proc;
4622 }
4623
4624 if (debug)
4625 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4626
4627 }
4628 cur_file_ptr = first_file;
4629
4630
4631 /* Copy all of the object file up to the symbol table. Originally
4632 we were going to use ftruncate, but that doesn't seem to work
4633 on Ultrix 3.1.... */
4634
4635 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4636 pfatal_with_name (obj_in_name);
4637
4638 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4639 pfatal_with_name (object_name);
4640
4641 for (remaining = orig_file_header.f_symptr;
4642 remaining > 0;
4643 remaining -= num_write)
4644 {
4645 num_write
4646 = (remaining <= (int) sizeof (buffer))
4647 ? remaining : (int) sizeof (buffer);
4648 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4649 if (sys_read <= 0)
4650 pfatal_with_name (obj_in_name);
4651
4652 else if (sys_read != num_write)
4653 fatal ("wanted to read %d bytes from %s, system returned %d",
4654 num_write,
4655 obj_in_name,
4656 sys_read);
4657
4658 sys_write = fwrite (buffer, 1, num_write, object_stream);
4659 if (sys_write <= 0)
4660 pfatal_with_name (object_name);
4661
4662 else if (sys_write != num_write)
4663 fatal ("wrote %d bytes to %s, system returned %d",
4664 num_write,
4665 object_name,
4666 sys_write);
4667 }
4668 }
4669
4670 \f
4671 /* Ye olde main program. */
4672
4673 extern int main (int, char **);
4674
4675 int
4676 main (int argc, char **argv)
4677 {
4678 int iflag = 0;
4679 char *p = strrchr (argv[0], '/');
4680 char *num_end;
4681 int option;
4682 int i;
4683
4684 progname = (p != 0) ? p+1 : argv[0];
4685
4686 (void) signal (SIGSEGV, catch_signal);
4687 (void) signal (SIGBUS, catch_signal);
4688 (void) signal (SIGABRT, catch_signal);
4689
4690 #if !defined(__SABER__) && !defined(lint)
4691 if (sizeof (efdr_t) > PAGE_USIZE)
4692 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4693 (int) sizeof (efdr_t),
4694 (int) PAGE_USIZE);
4695
4696 if (sizeof (page_t) != PAGE_USIZE)
4697 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4698 (int) sizeof (page_t),
4699 (int) PAGE_USIZE);
4700
4701 #endif
4702
4703 alloc_counts[ alloc_type_none ].alloc_name = "none";
4704 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4705 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4706 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4707 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4708 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4709 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4710 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4711 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4712
4713 int_type_info = type_info_init;
4714 int_type_info.basic_type = bt_Int;
4715
4716 void_type_info = type_info_init;
4717 void_type_info.basic_type = bt_Void;
4718
4719 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4720 switch (option)
4721 {
4722 default:
4723 had_errors++;
4724 break;
4725
4726 case 'd':
4727 debug = strtol (optarg, &num_end, 0);
4728 if ((unsigned) debug > 4 || num_end == optarg)
4729 had_errors++;
4730
4731 break;
4732
4733 case 'I':
4734 if (rename_output || obj_in_name != (char *) 0)
4735 had_errors++;
4736 else
4737 rename_output = 1;
4738
4739 /* Fall through to 'i' case. */
4740
4741 case 'i':
4742 if (obj_in_name == (char *) 0)
4743 {
4744 obj_in_name = optarg;
4745 iflag++;
4746 }
4747 else
4748 had_errors++;
4749 break;
4750
4751 case 'o':
4752 if (object_name == (char *) 0)
4753 object_name = optarg;
4754 else
4755 had_errors++;
4756 break;
4757
4758 case 'v':
4759 verbose++;
4760 break;
4761
4762 case 'V':
4763 version++;
4764 break;
4765 }
4766
4767 if (version)
4768 {
4769 printf (_("mips-tfile (GCC) %s\n"), version_string);
4770 fputs ("Copyright (C) 2004 Free Software Foundation, Inc.\n", stdout);
4771 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4772 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4773 stdout);
4774 exit (0);
4775 }
4776
4777 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4778 obj_in_name = argv[--argc];
4779
4780 if (object_name == (char *) 0 && optind <= argc - 2)
4781 object_name = argv[--argc];
4782
4783 /* If there is an output name, but no input name use
4784 the same file for both, deleting the name between
4785 opening it for input and opening it for output. */
4786 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4787 {
4788 obj_in_name = object_name;
4789 delete_input = 1;
4790 }
4791
4792 if (optind != argc - 1)
4793 had_errors++;
4794
4795 if (verbose || had_errors)
4796 {
4797 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4798 #ifdef TARGET_VERSION
4799 TARGET_VERSION;
4800 #endif
4801 fputc ('\n', stderr);
4802 }
4803
4804 if (object_name == (char *) 0 || had_errors)
4805 {
4806 fprintf (stderr, _("Calling Sequence:\n"));
4807 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4808 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4809 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4810 fprintf (stderr, "\n");
4811 fprintf (stderr, _("Debug levels are:\n"));
4812 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4813 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4814 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4815 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4816 return 1;
4817 }
4818
4819 if (obj_in_name == (char *) 0)
4820 obj_in_name = object_name;
4821
4822 if (rename_output && rename (object_name, obj_in_name) != 0)
4823 {
4824 char *buffer = (char *) allocate_multiple_pages (4);
4825 int len;
4826 int len2;
4827 int in_fd;
4828 int out_fd;
4829
4830 /* Rename failed, copy input file */
4831 in_fd = open (object_name, O_RDONLY, 0666);
4832 if (in_fd < 0)
4833 pfatal_with_name (object_name);
4834
4835 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4836 if (out_fd < 0)
4837 pfatal_with_name (obj_in_name);
4838
4839 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4840 {
4841 len2 = write (out_fd, buffer, len);
4842 if (len2 < 0)
4843 pfatal_with_name (object_name);
4844
4845 if (len != len2)
4846 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4847 }
4848
4849 free_multiple_pages ((page_t *) buffer, 4);
4850
4851 if (len < 0)
4852 pfatal_with_name (object_name);
4853
4854 if (close (in_fd) < 0)
4855 pfatal_with_name (object_name);
4856
4857 if (close (out_fd) < 0)
4858 pfatal_with_name (obj_in_name);
4859 }
4860
4861 /* Must open input before output, since the output may be the same file, and
4862 we need to get the input handle before truncating it. */
4863 obj_in_stream = fopen (obj_in_name, "r");
4864 if (obj_in_stream == (FILE *) 0)
4865 pfatal_with_name (obj_in_name);
4866
4867 if (delete_input && unlink (obj_in_name) != 0)
4868 pfatal_with_name (obj_in_name);
4869
4870 object_stream = fopen (object_name, "w");
4871 if (object_stream == (FILE *) 0)
4872 pfatal_with_name (object_name);
4873
4874 if (strcmp (argv[optind], "-") != 0)
4875 {
4876 input_name = argv[optind];
4877 if (freopen (argv[optind], "r", stdin) != stdin)
4878 pfatal_with_name (argv[optind]);
4879 }
4880
4881 copy_object (); /* scan & copy object file */
4882 parse_input (); /* scan all of input */
4883
4884 update_headers (); /* write out tfile */
4885 write_object ();
4886
4887 if (debug)
4888 {
4889 fprintf (stderr, "\n\tAllocation summary:\n\n");
4890 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4891 if (alloc_counts[i].total_alloc)
4892 {
4893 fprintf (stderr,
4894 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4895 alloc_counts[i].alloc_name,
4896 alloc_counts[i].total_alloc,
4897 alloc_counts[i].total_free,
4898 alloc_counts[i].total_pages);
4899 }
4900 }
4901
4902 return (had_errors) ? 1 : 0;
4903 }
4904
4905 \f
4906 /* Catch a signal and exit without dumping core. */
4907
4908 STATIC void
4909 catch_signal (int signum)
4910 {
4911 (void) signal (signum, SIG_DFL); /* just in case... */
4912 fatal ("%s", strsignal (signum));
4913 }
4914
4915 /* Print a fatal error message. NAME is the text.
4916 Also include a system error message based on `errno'. */
4917
4918 void
4919 pfatal_with_name (const char *msg)
4920 {
4921 int save_errno = errno; /* just in case.... */
4922 if (line_number > 0)
4923 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4924 else
4925 fprintf (stderr, "%s:", progname);
4926
4927 errno = save_errno;
4928 if (errno == 0)
4929 fprintf (stderr, "[errno = 0] %s\n", msg);
4930 else
4931 perror (msg);
4932
4933 exit (1);
4934 }
4935
4936 \f
4937 /* Procedure to die with an out of bounds error message. It has
4938 type int, so it can be used with an ?: expression within the
4939 ORIG_xxx macros, but the function never returns. */
4940
4941 static int
4942 out_of_bounds (symint_t indx, /* index that is out of bounds */
4943 symint_t max, /* maximum index */
4944 const char *str, /* string to print out */
4945 int prog_line) /* line number within mips-tfile.c */
4946 {
4947 if (indx < max) /* just in case */
4948 return 0;
4949
4950 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4951 progname, input_name, line_number, indx, str, max, prog_line);
4952
4953 exit (1);
4954 return 0; /* turn off warning messages */
4955 }
4956
4957 \f
4958 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4959 like sbrk's behind its back (or sbrk isn't available). If we use
4960 sbrk, we assume it gives us zeroed pages. */
4961
4962 #ifndef MALLOC_CHECK
4963 #ifdef USE_MALLOC
4964
4965 STATIC page_t *
4966 allocate_cluster (Size_t npages)
4967 {
4968 page_t *value = xcalloc (npages, PAGE_USIZE);
4969
4970 if (debug > 3)
4971 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4972
4973 return value;
4974 }
4975
4976 #else /* USE_MALLOC */
4977
4978 STATIC page_t *
4979 allocate_cluster (Size_t npages)
4980 {
4981 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4982 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4983
4984 if (offset != 0) /* align to a page boundary */
4985 {
4986 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
4987 pfatal_with_name ("allocate_cluster");
4988
4989 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
4990 }
4991
4992 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
4993 pfatal_with_name ("allocate_cluster");
4994
4995 if (debug > 3)
4996 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n",
4997 (unsigned long) npages, (void *) ptr);
4998
4999 return ptr;
5000 }
5001
5002 #endif /* USE_MALLOC */
5003
5004
5005 static page_t *cluster_ptr = NULL;
5006 static unsigned pages_left = 0;
5007
5008 #endif /* MALLOC_CHECK */
5009
5010
5011 /* Allocate some pages (which is initialized to 0). */
5012
5013 STATIC page_t *
5014 allocate_multiple_pages (Size_t npages)
5015 {
5016 #ifndef MALLOC_CHECK
5017 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5018 {
5019 pages_left = MAX_CLUSTER_PAGES;
5020 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5021 }
5022
5023 if (npages <= pages_left)
5024 {
5025 page_t *ptr = cluster_ptr;
5026 cluster_ptr += npages;
5027 pages_left -= npages;
5028 return ptr;
5029 }
5030
5031 return allocate_cluster (npages);
5032
5033 #else /* MALLOC_CHECK */
5034 return xcalloc (npages, PAGE_SIZE);
5035
5036 #endif /* MALLOC_CHECK */
5037 }
5038
5039
5040 /* Release some pages. */
5041
5042 STATIC void
5043 free_multiple_pages (page_t *page_ptr, Size_t npages)
5044 {
5045 #ifndef MALLOC_CHECK
5046 if (pages_left == 0)
5047 {
5048 cluster_ptr = page_ptr;
5049 pages_left = npages;
5050 }
5051
5052 else if ((page_ptr + npages) == cluster_ptr)
5053 {
5054 cluster_ptr -= npages;
5055 pages_left += npages;
5056 }
5057
5058 /* otherwise the page is not freed. If more than call is
5059 done, we probably should worry about it, but at present,
5060 the free pages is done right after an allocate. */
5061
5062 #else /* MALLOC_CHECK */
5063 free (page_ptr);
5064
5065 #endif /* MALLOC_CHECK */
5066 }
5067
5068
5069 /* Allocate one page (which is initialized to 0). */
5070
5071 STATIC page_t *
5072 allocate_page (void)
5073 {
5074 #ifndef MALLOC_CHECK
5075 if (pages_left == 0)
5076 {
5077 pages_left = MAX_CLUSTER_PAGES;
5078 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5079 }
5080
5081 pages_left--;
5082 return cluster_ptr++;
5083
5084 #else /* MALLOC_CHECK */
5085 return xcalloc (1, PAGE_SIZE);
5086
5087 #endif /* MALLOC_CHECK */
5088 }
5089
5090 \f
5091 /* Allocate scoping information. */
5092
5093 STATIC scope_t *
5094 allocate_scope (void)
5095 {
5096 scope_t *ptr;
5097 static scope_t initial_scope;
5098
5099 #ifndef MALLOC_CHECK
5100 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5101 if (ptr != (scope_t *) 0)
5102 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5103
5104 else
5105 {
5106 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5107 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5108
5109 if (unallocated == 0)
5110 {
5111 unallocated = PAGE_SIZE / sizeof (scope_t);
5112 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5113 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5114 }
5115
5116 ptr = &cur_page->scope[ --unallocated ];
5117 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5118 }
5119
5120 #else
5121 ptr = xmalloc (sizeof (scope_t));
5122
5123 #endif
5124
5125 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5126 *ptr = initial_scope;
5127 return ptr;
5128 }
5129
5130 /* Free scoping information. */
5131
5132 STATIC void
5133 free_scope (scope_t *ptr)
5134 {
5135 alloc_counts[ (int) alloc_type_scope ].total_free++;
5136
5137 #ifndef MALLOC_CHECK
5138 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5139 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5140
5141 #else
5142 free (ptr);
5143 #endif
5144
5145 }
5146
5147 \f
5148 /* Allocate links for pages in a virtual array. */
5149
5150 STATIC vlinks_t *
5151 allocate_vlinks (void)
5152 {
5153 vlinks_t *ptr;
5154 static vlinks_t initial_vlinks;
5155
5156 #ifndef MALLOC_CHECK
5157 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5158 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5159
5160 if (unallocated == 0)
5161 {
5162 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5163 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5164 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5165 }
5166
5167 ptr = &cur_page->vlinks[ --unallocated ];
5168 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5169
5170 #else
5171 ptr = xmalloc (sizeof (vlinks_t));
5172
5173 #endif
5174
5175 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5176 *ptr = initial_vlinks;
5177 return ptr;
5178 }
5179
5180 \f
5181 /* Allocate string hash buckets. */
5182
5183 STATIC shash_t *
5184 allocate_shash (void)
5185 {
5186 shash_t *ptr;
5187 static shash_t initial_shash;
5188
5189 #ifndef MALLOC_CHECK
5190 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5191 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5192
5193 if (unallocated == 0)
5194 {
5195 unallocated = PAGE_SIZE / sizeof (shash_t);
5196 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5197 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5198 }
5199
5200 ptr = &cur_page->shash[ --unallocated ];
5201 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5202
5203 #else
5204 ptr = xmalloc (sizeof (shash_t));
5205
5206 #endif
5207
5208 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5209 *ptr = initial_shash;
5210 return ptr;
5211 }
5212
5213 \f
5214 /* Allocate type hash buckets. */
5215
5216 STATIC thash_t *
5217 allocate_thash (void)
5218 {
5219 thash_t *ptr;
5220 static thash_t initial_thash;
5221
5222 #ifndef MALLOC_CHECK
5223 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5224 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5225
5226 if (unallocated == 0)
5227 {
5228 unallocated = PAGE_SIZE / sizeof (thash_t);
5229 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5230 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5231 }
5232
5233 ptr = &cur_page->thash[ --unallocated ];
5234 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5235
5236 #else
5237 ptr = xmalloc (sizeof (thash_t));
5238
5239 #endif
5240
5241 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5242 *ptr = initial_thash;
5243 return ptr;
5244 }
5245
5246 \f
5247 /* Allocate structure, union, or enum tag information. */
5248
5249 STATIC tag_t *
5250 allocate_tag (void)
5251 {
5252 tag_t *ptr;
5253 static tag_t initial_tag;
5254
5255 #ifndef MALLOC_CHECK
5256 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5257 if (ptr != (tag_t *) 0)
5258 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5259
5260 else
5261 {
5262 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5263 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5264
5265 if (unallocated == 0)
5266 {
5267 unallocated = PAGE_SIZE / sizeof (tag_t);
5268 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5269 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5270 }
5271
5272 ptr = &cur_page->tag[ --unallocated ];
5273 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5274 }
5275
5276 #else
5277 ptr = xmalloc (sizeof (tag_t));
5278
5279 #endif
5280
5281 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5282 *ptr = initial_tag;
5283 return ptr;
5284 }
5285
5286 /* Free scoping information. */
5287
5288 STATIC void
5289 free_tag (tag_t *ptr)
5290 {
5291 alloc_counts[ (int) alloc_type_tag ].total_free++;
5292
5293 #ifndef MALLOC_CHECK
5294 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5295 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5296
5297 #else
5298 free (ptr);
5299 #endif
5300
5301 }
5302
5303 \f
5304 /* Allocate forward reference to a yet unknown tag. */
5305
5306 STATIC forward_t *
5307 allocate_forward (void)
5308 {
5309 forward_t *ptr;
5310 static forward_t initial_forward;
5311
5312 #ifndef MALLOC_CHECK
5313 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5314 if (ptr != (forward_t *) 0)
5315 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5316
5317 else
5318 {
5319 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5320 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5321
5322 if (unallocated == 0)
5323 {
5324 unallocated = PAGE_SIZE / sizeof (forward_t);
5325 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5326 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5327 }
5328
5329 ptr = &cur_page->forward[ --unallocated ];
5330 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5331 }
5332
5333 #else
5334 ptr = xmalloc (sizeof (forward_t));
5335
5336 #endif
5337
5338 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5339 *ptr = initial_forward;
5340 return ptr;
5341 }
5342
5343 /* Free scoping information. */
5344
5345 STATIC void
5346 free_forward (forward_t *ptr)
5347 {
5348 alloc_counts[ (int) alloc_type_forward ].total_free++;
5349
5350 #ifndef MALLOC_CHECK
5351 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5352 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5353
5354 #else
5355 free (ptr);
5356 #endif
5357
5358 }
5359
5360 \f
5361 /* Allocate head of type hash list. */
5362
5363 STATIC thead_t *
5364 allocate_thead (void)
5365 {
5366 thead_t *ptr;
5367 static thead_t initial_thead;
5368
5369 #ifndef MALLOC_CHECK
5370 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5371 if (ptr != (thead_t *) 0)
5372 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5373
5374 else
5375 {
5376 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5377 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5378
5379 if (unallocated == 0)
5380 {
5381 unallocated = PAGE_SIZE / sizeof (thead_t);
5382 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5383 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5384 }
5385
5386 ptr = &cur_page->thead[ --unallocated ];
5387 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5388 }
5389
5390 #else
5391 ptr = xmalloc (sizeof (thead_t));
5392
5393 #endif
5394
5395 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5396 *ptr = initial_thead;
5397 return ptr;
5398 }
5399
5400 /* Free scoping information. */
5401
5402 STATIC void
5403 free_thead (thead_t *ptr)
5404 {
5405 alloc_counts[ (int) alloc_type_thead ].total_free++;
5406
5407 #ifndef MALLOC_CHECK
5408 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5409 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5410
5411 #else
5412 free (ptr);
5413 #endif
5414
5415 }
5416
5417 #endif /* MIPS_DEBUGGING_INFO */
5418
5419 \f
5420 /* Output an error message and exit. */
5421
5422 void
5423 fatal (const char *format, ...)
5424 {
5425 va_list ap;
5426
5427 va_start (ap, format);
5428
5429 if (line_number > 0)
5430 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5431 else
5432 fprintf (stderr, "%s:", progname);
5433
5434 vfprintf (stderr, format, ap);
5435 va_end (ap);
5436 fprintf (stderr, "\n");
5437 if (line_number > 0)
5438 fprintf (stderr, "line:\t%s\n", cur_line_start);
5439
5440 saber_stop ();
5441 exit (1);
5442 }
5443
5444 void
5445 error (const char *format, ...)
5446 {
5447 va_list ap;
5448
5449 va_start (ap, format);
5450
5451 if (line_number > 0)
5452 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5453 else
5454 fprintf (stderr, "%s:", progname);
5455
5456 vfprintf (stderr, format, ap);
5457 fprintf (stderr, "\n");
5458 if (line_number > 0)
5459 fprintf (stderr, "line:\t%s\n", cur_line_start);
5460
5461 had_errors++;
5462 va_end (ap);
5463
5464 saber_stop ();
5465 }
5466
5467 /* More 'friendly' abort that prints the line and file. */
5468
5469 void
5470 fancy_abort (const char *file, int line, const char *func)
5471 {
5472 fatal ("abort in %s, at %s:%d", func, file, line);
5473 }
5474 \f
5475
5476 /* When `malloc.c' is compiled with `rcheck' defined,
5477 it calls this function to report clobberage. */
5478
5479 void
5480 botch (const char *s)
5481 {
5482 fatal ("%s", s);
5483 }
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