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In gcc/: 2011-01-12 Nicola Pero <nicola.pero@meta-innovation.com>
[official-gcc.git] / gcc / mips-tfile.c
blob28be8d1d783aeca0310301ec53e554fe3a7907cf
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, 2006, 2007, 2008, 2009, 2010, 2011
7 Free Software Foundation, Inc.
8 Contributed by Michael Meissner (meissner@cygnus.com).
9
10 This file is part of GCC.
11
12 GCC is free software; you can redistribute it and/or modify it under
13 the terms of the GNU General Public License as published by the Free
14 Software Foundation; either version 3, or (at your option) any later
15 version.
16
17 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
18 WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with GCC; see the file COPYING3. If not see
24 <http://www.gnu.org/licenses/>. */
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 #ifndef CROSS_DIRECTORY_STRUCTURE
669 #include <a.out.h>
670 #else
671 #include "mips/a.out.h"
672 #endif /* CROSS_DIRECTORY_STRUCTURE */
673
674 #include "gstab.h"
675
676 #ifndef MALLOC_CHECK
677 #ifdef __SABER__
678 #define MALLOC_CHECK
679 #endif
680 #endif
681
682 #define IS_ASM_IDENT(ch) \
683 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
684
685 \f
686 /* Redefinition of storage classes as an enumeration for better
687 debugging. */
688
689 typedef enum sc {
690 sc_Nil = scNil, /* no storage class */
691 sc_Text = scText, /* text symbol */
692 sc_Data = scData, /* initialized data symbol */
693 sc_Bss = scBss, /* un-initialized data symbol */
694 sc_Register = scRegister, /* value of symbol is register number */
695 sc_Abs = scAbs, /* value of symbol is absolute */
696 sc_Undefined = scUndefined, /* who knows? */
697 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
698 sc_Bits = scBits, /* this is a bit field */
699 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
700 sc_RegImage = scRegImage, /* register value saved on stack */
701 sc_Info = scInfo, /* symbol contains debugger information */
702 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
703 sc_SData = scSData, /* load time only small data */
704 sc_SBss = scSBss, /* load time only small common */
705 sc_RData = scRData, /* load time only read only data */
706 sc_Var = scVar, /* Var parameter (fortran,pascal) */
707 sc_Common = scCommon, /* common variable */
708 sc_SCommon = scSCommon, /* small common */
709 sc_VarRegister = scVarRegister, /* Var parameter in a register */
710 sc_Variant = scVariant, /* Variant record */
711 sc_SUndefined = scSUndefined, /* small undefined(external) data */
712 sc_Init = scInit, /* .init section symbol */
713 sc_Max = scMax /* Max storage class+1 */
714 } sc_t;
715
716 /* Redefinition of symbol type. */
717
718 typedef enum st {
719 st_Nil = stNil, /* Nuthin' special */
720 st_Global = stGlobal, /* external symbol */
721 st_Static = stStatic, /* static */
722 st_Param = stParam, /* procedure argument */
723 st_Local = stLocal, /* local variable */
724 st_Label = stLabel, /* label */
725 st_Proc = stProc, /* " " Procedure */
726 st_Block = stBlock, /* beginning of block */
727 st_End = stEnd, /* end (of anything) */
728 st_Member = stMember, /* member (of anything - struct/union/enum */
729 st_Typedef = stTypedef, /* type definition */
730 st_File = stFile, /* file name */
731 st_RegReloc = stRegReloc, /* register relocation */
732 st_Forward = stForward, /* forwarding address */
733 st_StaticProc = stStaticProc, /* load time only static procs */
734 st_Constant = stConstant, /* const */
735 st_Str = stStr, /* string */
736 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */
737 st_Expr = stExpr, /* 2+2 vs. 4 */
738 st_Type = stType, /* post-coercion SER */
739 st_Max = stMax /* max type+1 */
740 } st_t;
741
742 /* Redefinition of type qualifiers. */
743
744 typedef enum tq {
745 tq_Nil = tqNil, /* bt is what you see */
746 tq_Ptr = tqPtr, /* pointer */
747 tq_Proc = tqProc, /* procedure */
748 tq_Array = tqArray, /* duh */
749 tq_Far = tqFar, /* longer addressing - 8086/8 land */
750 tq_Vol = tqVol, /* volatile */
751 tq_Max = tqMax /* Max type qualifier+1 */
752 } tq_t;
753
754 /* Redefinition of basic types. */
755
756 typedef enum bt {
757 bt_Nil = btNil, /* undefined */
758 bt_Adr = btAdr, /* address - integer same size as pointer */
759 bt_Char = btChar, /* character */
760 bt_UChar = btUChar, /* unsigned character */
761 bt_Short = btShort, /* short */
762 bt_UShort = btUShort, /* unsigned short */
763 bt_Int = btInt, /* int */
764 bt_UInt = btUInt, /* unsigned int */
765 bt_Long = btLong, /* long */
766 bt_ULong = btULong, /* unsigned long */
767 bt_Float = btFloat, /* float (real) */
768 bt_Double = btDouble, /* Double (real) */
769 bt_Struct = btStruct, /* Structure (Record) */
770 bt_Union = btUnion, /* Union (variant) */
771 bt_Enum = btEnum, /* Enumerated */
772 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
773 bt_Range = btRange, /* subrange of int */
774 bt_Set = btSet, /* pascal sets */
775 bt_Complex = btComplex, /* fortran complex */
776 bt_DComplex = btDComplex, /* fortran double complex */
777 bt_Indirect = btIndirect, /* forward or unnamed typedef */
778 bt_FixedDec = btFixedDec, /* Fixed Decimal */
779 bt_FloatDec = btFloatDec, /* Float Decimal */
780 bt_String = btString, /* Varying Length Character String */
781 bt_Bit = btBit, /* Aligned Bit String */
782 bt_Picture = btPicture, /* Picture */
783
784 #ifdef btVoid
785 bt_Void = btVoid, /* Void */
786 #else
787 #define bt_Void bt_Nil
788 #endif
789
790 bt_Max = btMax /* Max basic type+1 */
791 } bt_t;
792
793 \f
794
795 /* Basic COFF storage classes. */
796 enum coff_storage {
797 C_EFCN = -1,
798 C_NULL = 0,
799 C_AUTO = 1,
800 C_EXT = 2,
801 C_STAT = 3,
802 C_REG = 4,
803 C_EXTDEF = 5,
804 C_LABEL = 6,
805 C_ULABEL = 7,
806 C_MOS = 8,
807 C_ARG = 9,
808 C_STRTAG = 10,
809 C_MOU = 11,
810 C_UNTAG = 12,
811 C_TPDEF = 13,
812 C_USTATIC = 14,
813 C_ENTAG = 15,
814 C_MOE = 16,
815 C_REGPARM = 17,
816 C_FIELD = 18,
817 C_BLOCK = 100,
818 C_FCN = 101,
819 C_EOS = 102,
820 C_FILE = 103,
821 C_LINE = 104,
822 C_ALIAS = 105,
823 C_HIDDEN = 106,
824 C_MAX = 107
825 } coff_storage_t;
826
827 /* Regular COFF fundamental type. */
828 typedef enum coff_type {
829 T_NULL = 0,
830 T_ARG = 1,
831 T_CHAR = 2,
832 T_SHORT = 3,
833 T_INT = 4,
834 T_LONG = 5,
835 T_FLOAT = 6,
836 T_DOUBLE = 7,
837 T_STRUCT = 8,
838 T_UNION = 9,
839 T_ENUM = 10,
840 T_MOE = 11,
841 T_UCHAR = 12,
842 T_USHORT = 13,
843 T_UINT = 14,
844 T_ULONG = 15,
845 T_MAX = 16
846 } coff_type_t;
847
848 /* Regular COFF derived types. */
849 typedef enum coff_dt {
850 DT_NON = 0,
851 DT_PTR = 1,
852 DT_FCN = 2,
853 DT_ARY = 3,
854 DT_MAX = 4
855 } coff_dt_t;
856
857 #define N_BTMASK 017 /* bitmask to isolate basic type */
858 #define N_TMASK 003 /* bitmask to isolate derived type */
859 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
860 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
861 #define N_TQ 6 /* # of type qualifiers */
862
863 /* States for whether to hash type or not. */
864 typedef enum hash_state {
865 hash_no = 0, /* don't hash type */
866 hash_yes = 1, /* ok to hash type, or use previous hash */
867 hash_record = 2 /* ok to record hash, but don't use prev. */
868 } hash_state_t;
869
870
871 /* Types of different sized allocation requests. */
872 enum alloc_type {
873 alloc_type_none, /* dummy value */
874 alloc_type_scope, /* nested scopes linked list */
875 alloc_type_vlinks, /* glue linking pages in varray */
876 alloc_type_shash, /* string hash element */
877 alloc_type_thash, /* type hash element */
878 alloc_type_tag, /* struct/union/tag element */
879 alloc_type_forward, /* element to hold unknown tag */
880 alloc_type_thead, /* head of type hash list */
881 alloc_type_varray, /* general varray allocation */
882 alloc_type_last /* last+1 element for array bounds */
883 };
884
885 \f
886 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
887 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
888
889
890 /* Structures to provide n-number of virtual arrays, each of which can
891 grow linearly, and which are written in the object file as sequential
892 pages. On systems with a BSD malloc that define USE_MALLOC, the
893 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
894 adds its overhead, and rounds up to the next power of 2. Pages are
895 linked together via a linked list. */
896
897 #ifndef PAGE_SIZE
898 #define PAGE_SIZE 32768 /* size of varray pages */
899 #endif
900
901 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
902
903
904 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
905 #ifndef USE_MALLOC /* in one memory request */
906 #define MAX_CLUSTER_PAGES 64
907 #else
908 #define MAX_CLUSTER_PAGES 63
909 #endif
910 #endif
911
912
913 /* Linked list connecting separate page allocations. */
914 typedef struct vlinks {
915 struct vlinks *prev; /* previous set of pages */
916 struct vlinks *next; /* next set of pages */
917 union page *datum; /* start of page */
918 unsigned long start_index; /* starting index # of page */
919 } vlinks_t;
920
921
922 /* Virtual array header. */
923 typedef struct varray {
924 vlinks_t *first; /* first page link */
925 vlinks_t *last; /* last page link */
926 unsigned long num_allocated; /* # objects allocated */
927 unsigned short object_size; /* size in bytes of each object */
928 unsigned short objects_per_page; /* # objects that can fit on a page */
929 unsigned short objects_last_page; /* # objects allocated on last page */
930 } varray_t;
931
932 #ifndef MALLOC_CHECK
933 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
934 #else
935 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
936 #endif
937
938 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
939 (vlinks_t *) 0, /* first */ \
940 (vlinks_t *) 0, /* last */ \
941 0, /* num_allocated */ \
942 sizeof (type), /* object_size */ \
943 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
944 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
945 }
946
947 #define INITIALIZE_VARRAY(x,type) \
948 do { \
949 (x)->object_size = sizeof (type); \
950 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
951 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
952 } while (0)
953
954 /* Master type for indexes within the symbol table. */
955 typedef unsigned long symint_t;
956
957
958 /* Linked list support for nested scopes (file, block, structure, etc.). */
959 typedef struct scope {
960 struct scope *prev; /* previous scope level */
961 struct scope *free; /* free list pointer */
962 SYMR *lsym; /* pointer to local symbol node */
963 symint_t lnumber; /* lsym index */
964 st_t type; /* type of the node */
965 } scope_t;
966
967
968 /* Forward reference list for tags referenced, but not yet defined. */
969 typedef struct forward {
970 struct forward *next; /* next forward reference */
971 struct forward *free; /* free list pointer */
972 AUXU *ifd_ptr; /* pointer to store file index */
973 AUXU *index_ptr; /* pointer to store symbol index */
974 AUXU *type_ptr; /* pointer to munge type info */
975 } forward_t;
976
977
978 /* Linked list support for tags. The first tag in the list is always
979 the current tag for that block. */
980 typedef struct tag {
981 struct tag *free; /* free list pointer */
982 struct shash *hash_ptr; /* pointer to the hash table head */
983 struct tag *same_name; /* tag with same name in outer scope */
984 struct tag *same_block; /* next tag defined in the same block. */
985 struct forward *forward_ref; /* list of forward references */
986 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
987 symint_t ifd; /* file # tag defined in */
988 symint_t indx; /* index within file's local symbols */
989 } tag_t;
990
991
992 /* Head of a block's linked list of tags. */
993 typedef struct thead {
994 struct thead *prev; /* previous block */
995 struct thead *free; /* free list pointer */
996 struct tag *first_tag; /* first tag in block defined */
997 } thead_t;
998
999
1000 /* Union containing pointers to each the small structures which are freed up. */
1001 typedef union small_free {
1002 scope_t *f_scope; /* scope structure */
1003 thead_t *f_thead; /* tag head structure */
1004 tag_t *f_tag; /* tag element structure */
1005 forward_t *f_forward; /* forward tag reference */
1006 } small_free_t;
1007
1008
1009 /* String hash table support. The size of the hash table must fit
1010 within a page. */
1011
1012 #ifndef SHASH_SIZE
1013 #define SHASH_SIZE 1009
1014 #endif
1015
1016 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1017
1018 typedef struct shash {
1019 struct shash *next; /* next hash value */
1020 char *string; /* string we are hashing */
1021 symint_t len; /* string length */
1022 symint_t indx; /* index within string table */
1023 EXTR *esym_ptr; /* global symbol pointer */
1024 SYMR *sym_ptr; /* local symbol pointer */
1025 SYMR *end_ptr; /* symbol pointer to end block */
1026 tag_t *tag_ptr; /* tag pointer */
1027 PDR *proc_ptr; /* procedure descriptor pointer */
1028 } shash_t;
1029
1030
1031 /* Type hash table support. The size of the hash table must fit
1032 within a page with the other extended file descriptor information.
1033 Because unique types which are hashed are fewer in number than
1034 strings, we use a smaller hash value. */
1035
1036 #ifndef THASH_SIZE
1037 #define THASH_SIZE 113
1038 #endif
1039
1040 typedef struct thash {
1041 struct thash *next; /* next hash value */
1042 AUXU type; /* type we are hashing */
1043 symint_t indx; /* index within string table */
1044 } thash_t;
1045
1046
1047 /* Extended file descriptor that contains all of the support necessary
1048 to add things to each file separately. */
1049 typedef struct efdr {
1050 FDR fdr; /* File header to be written out */
1051 FDR *orig_fdr; /* original file header */
1052 char *name; /* filename */
1053 int name_len; /* length of the filename */
1054 symint_t void_type; /* aux. pointer to 'void' type */
1055 symint_t int_type; /* aux. pointer to 'int' type */
1056 scope_t *cur_scope; /* current nested scopes */
1057 symint_t file_index; /* current file number */
1058 int nested_scopes; /* # nested scopes */
1059 varray_t strings; /* local strings */
1060 varray_t symbols; /* local symbols */
1061 varray_t procs; /* procedures */
1062 varray_t aux_syms; /* auxiliary symbols */
1063 struct efdr *next_file; /* next file descriptor */
1064 /* string/type hash tables */
1065 shash_t **shash_head; /* string hash table */
1066 thash_t *thash_head[THASH_SIZE];
1067 } efdr_t;
1068
1069 /* Pre-initialized extended file structure. */
1070 static int init_file_initialized = 0;
1071 static efdr_t init_file;
1072
1073 static efdr_t *first_file; /* first file descriptor */
1074 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1075
1076
1077 /* Union of various things that are held in pages. */
1078 typedef union page {
1079 char byte [ PAGE_SIZE ];
1080 unsigned char ubyte [ PAGE_SIZE ];
1081 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1082 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1083 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1084 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1085 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1086 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1087 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1088 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1089 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1090 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1091 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1092 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1093 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1094 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1095 } page_t;
1096
1097
1098 /* Structure holding allocation information for small sized structures. */
1099 typedef struct alloc_info {
1100 const char *alloc_name; /* name of this allocation type (must be first) */
1101 page_t *cur_page; /* current page being allocated from */
1102 small_free_t free_list; /* current free list if any */
1103 int unallocated; /* number of elements unallocated on page */
1104 int total_alloc; /* total number of allocations */
1105 int total_free; /* total number of frees */
1106 int total_pages; /* total number of pages allocated */
1107 } alloc_info_t;
1108
1109 /* Type information collected together. */
1110 typedef struct type_info {
1111 bt_t basic_type; /* basic type */
1112 coff_type_t orig_type; /* original COFF-based type */
1113 int num_tq; /* # type qualifiers */
1114 int num_dims; /* # dimensions */
1115 int num_sizes; /* # sizes */
1116 int extra_sizes; /* # extra sizes not tied with dims */
1117 tag_t * tag_ptr; /* tag pointer */
1118 int bitfield; /* symbol is a bitfield */
1119 int unknown_tag; /* this is an unknown tag */
1120 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1121 symint_t dimensions [N_TQ]; /* dimensions for each array */
1122 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1123 struct/union/enum + bitfield size */
1124 } type_info_t;
1125
1126 /* Pre-initialized type_info struct. */
1127 static type_info_t type_info_init = {
1128 bt_Nil, /* basic type */
1129 T_NULL, /* original COFF-based type */
1130 0, /* # type qualifiers */
1131 0, /* # dimensions */
1132 0, /* # sizes */
1133 0, /* sizes not tied with dims */
1134 NULL, /* ptr to tag */
1135 0, /* bitfield */
1136 0, /* unknown tag */
1137 { /* type qualifiers */
1138 tq_Nil,
1139 tq_Nil,
1140 tq_Nil,
1141 tq_Nil,
1142 tq_Nil,
1143 tq_Nil,
1144 },
1145 { /* dimensions */
1146 0,
1147 0,
1148 0,
1149 0,
1150 0,
1151 0
1152 },
1153 { /* sizes */
1154 0,
1155 0,
1156 0,
1157 0,
1158 0,
1159 0,
1160 0,
1161 0,
1162 },
1163 };
1164
1165
1166 /* Global virtual arrays & hash table for external strings as well as
1167 for the tags table and global tables for file descriptors, and
1168 dense numbers. */
1169
1170 static varray_t file_desc = INIT_VARRAY (efdr_t);
1171 static varray_t dense_num = INIT_VARRAY (DNR);
1172 static varray_t tag_strings = INIT_VARRAY (char);
1173 static varray_t ext_strings = INIT_VARRAY (char);
1174 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1175
1176 static shash_t *orig_str_hash[SHASH_SIZE];
1177 static shash_t *ext_str_hash [SHASH_SIZE];
1178 static shash_t *tag_hash [SHASH_SIZE];
1179
1180 /* Static types for int and void. Also, remember the last function's
1181 type (which is set up when we encounter the declaration for the
1182 function, and used when the end block for the function is emitted. */
1183
1184 static type_info_t int_type_info;
1185 static type_info_t void_type_info;
1186 static type_info_t last_func_type_info;
1187 static EXTR *last_func_eptr;
1188
1189
1190 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1191 really should use bt_Void, but this causes the current ecoff GDB to
1192 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1193 2.0) doesn't understand it, even though the compiler generates it.
1194 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1195 suite, but for now go with what works. */
1196
1197 static const bt_t map_coff_types[ (int) T_MAX ] = {
1198 bt_Nil, /* T_NULL */
1199 bt_Nil, /* T_ARG */
1200 bt_Char, /* T_CHAR */
1201 bt_Short, /* T_SHORT */
1202 bt_Int, /* T_INT */
1203 bt_Long, /* T_LONG */
1204 bt_Float, /* T_FLOAT */
1205 bt_Double, /* T_DOUBLE */
1206 bt_Struct, /* T_STRUCT */
1207 bt_Union, /* T_UNION */
1208 bt_Enum, /* T_ENUM */
1209 bt_Enum, /* T_MOE */
1210 bt_UChar, /* T_UCHAR */
1211 bt_UShort, /* T_USHORT */
1212 bt_UInt, /* T_UINT */
1213 bt_ULong /* T_ULONG */
1214 };
1215
1216 /* Convert COFF storage class to ECOFF storage class. */
1217 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1218 sc_Nil, /* 0: C_NULL */
1219 sc_Abs, /* 1: C_AUTO auto var */
1220 sc_Undefined, /* 2: C_EXT external */
1221 sc_Data, /* 3: C_STAT static */
1222 sc_Register, /* 4: C_REG register */
1223 sc_Undefined, /* 5: C_EXTDEF ??? */
1224 sc_Text, /* 6: C_LABEL label */
1225 sc_Text, /* 7: C_ULABEL user label */
1226 sc_Info, /* 8: C_MOS member of struct */
1227 sc_Abs, /* 9: C_ARG argument */
1228 sc_Info, /* 10: C_STRTAG struct tag */
1229 sc_Info, /* 11: C_MOU member of union */
1230 sc_Info, /* 12: C_UNTAG union tag */
1231 sc_Info, /* 13: C_TPDEF typedef */
1232 sc_Data, /* 14: C_USTATIC ??? */
1233 sc_Info, /* 15: C_ENTAG enum tag */
1234 sc_Info, /* 16: C_MOE member of enum */
1235 sc_Register, /* 17: C_REGPARM register parameter */
1236 sc_Bits, /* 18; C_FIELD bitfield */
1237 sc_Nil, /* 19 */
1238 sc_Nil, /* 20 */
1239 sc_Nil, /* 21 */
1240 sc_Nil, /* 22 */
1241 sc_Nil, /* 23 */
1242 sc_Nil, /* 24 */
1243 sc_Nil, /* 25 */
1244 sc_Nil, /* 26 */
1245 sc_Nil, /* 27 */
1246 sc_Nil, /* 28 */
1247 sc_Nil, /* 29 */
1248 sc_Nil, /* 30 */
1249 sc_Nil, /* 31 */
1250 sc_Nil, /* 32 */
1251 sc_Nil, /* 33 */
1252 sc_Nil, /* 34 */
1253 sc_Nil, /* 35 */
1254 sc_Nil, /* 36 */
1255 sc_Nil, /* 37 */
1256 sc_Nil, /* 38 */
1257 sc_Nil, /* 39 */
1258 sc_Nil, /* 40 */
1259 sc_Nil, /* 41 */
1260 sc_Nil, /* 42 */
1261 sc_Nil, /* 43 */
1262 sc_Nil, /* 44 */
1263 sc_Nil, /* 45 */
1264 sc_Nil, /* 46 */
1265 sc_Nil, /* 47 */
1266 sc_Nil, /* 48 */
1267 sc_Nil, /* 49 */
1268 sc_Nil, /* 50 */
1269 sc_Nil, /* 51 */
1270 sc_Nil, /* 52 */
1271 sc_Nil, /* 53 */
1272 sc_Nil, /* 54 */
1273 sc_Nil, /* 55 */
1274 sc_Nil, /* 56 */
1275 sc_Nil, /* 57 */
1276 sc_Nil, /* 58 */
1277 sc_Nil, /* 59 */
1278 sc_Nil, /* 60 */
1279 sc_Nil, /* 61 */
1280 sc_Nil, /* 62 */
1281 sc_Nil, /* 63 */
1282 sc_Nil, /* 64 */
1283 sc_Nil, /* 65 */
1284 sc_Nil, /* 66 */
1285 sc_Nil, /* 67 */
1286 sc_Nil, /* 68 */
1287 sc_Nil, /* 69 */
1288 sc_Nil, /* 70 */
1289 sc_Nil, /* 71 */
1290 sc_Nil, /* 72 */
1291 sc_Nil, /* 73 */
1292 sc_Nil, /* 74 */
1293 sc_Nil, /* 75 */
1294 sc_Nil, /* 76 */
1295 sc_Nil, /* 77 */
1296 sc_Nil, /* 78 */
1297 sc_Nil, /* 79 */
1298 sc_Nil, /* 80 */
1299 sc_Nil, /* 81 */
1300 sc_Nil, /* 82 */
1301 sc_Nil, /* 83 */
1302 sc_Nil, /* 84 */
1303 sc_Nil, /* 85 */
1304 sc_Nil, /* 86 */
1305 sc_Nil, /* 87 */
1306 sc_Nil, /* 88 */
1307 sc_Nil, /* 89 */
1308 sc_Nil, /* 90 */
1309 sc_Nil, /* 91 */
1310 sc_Nil, /* 92 */
1311 sc_Nil, /* 93 */
1312 sc_Nil, /* 94 */
1313 sc_Nil, /* 95 */
1314 sc_Nil, /* 96 */
1315 sc_Nil, /* 97 */
1316 sc_Nil, /* 98 */
1317 sc_Nil, /* 99 */
1318 sc_Text, /* 100: C_BLOCK block start/end */
1319 sc_Text, /* 101: C_FCN function start/end */
1320 sc_Info, /* 102: C_EOS end of struct/union/enum */
1321 sc_Nil, /* 103: C_FILE file start */
1322 sc_Nil, /* 104: C_LINE line number */
1323 sc_Nil, /* 105: C_ALIAS combined type info */
1324 sc_Nil, /* 106: C_HIDDEN ??? */
1325 };
1326
1327 /* Convert COFF storage class to ECOFF symbol type. */
1328 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1329 st_Nil, /* 0: C_NULL */
1330 st_Local, /* 1: C_AUTO auto var */
1331 st_Global, /* 2: C_EXT external */
1332 st_Static, /* 3: C_STAT static */
1333 st_Local, /* 4: C_REG register */
1334 st_Global, /* 5: C_EXTDEF ??? */
1335 st_Label, /* 6: C_LABEL label */
1336 st_Label, /* 7: C_ULABEL user label */
1337 st_Member, /* 8: C_MOS member of struct */
1338 st_Param, /* 9: C_ARG argument */
1339 st_Block, /* 10: C_STRTAG struct tag */
1340 st_Member, /* 11: C_MOU member of union */
1341 st_Block, /* 12: C_UNTAG union tag */
1342 st_Typedef, /* 13: C_TPDEF typedef */
1343 st_Static, /* 14: C_USTATIC ??? */
1344 st_Block, /* 15: C_ENTAG enum tag */
1345 st_Member, /* 16: C_MOE member of enum */
1346 st_Param, /* 17: C_REGPARM register parameter */
1347 st_Member, /* 18; C_FIELD bitfield */
1348 st_Nil, /* 19 */
1349 st_Nil, /* 20 */
1350 st_Nil, /* 21 */
1351 st_Nil, /* 22 */
1352 st_Nil, /* 23 */
1353 st_Nil, /* 24 */
1354 st_Nil, /* 25 */
1355 st_Nil, /* 26 */
1356 st_Nil, /* 27 */
1357 st_Nil, /* 28 */
1358 st_Nil, /* 29 */
1359 st_Nil, /* 30 */
1360 st_Nil, /* 31 */
1361 st_Nil, /* 32 */
1362 st_Nil, /* 33 */
1363 st_Nil, /* 34 */
1364 st_Nil, /* 35 */
1365 st_Nil, /* 36 */
1366 st_Nil, /* 37 */
1367 st_Nil, /* 38 */
1368 st_Nil, /* 39 */
1369 st_Nil, /* 40 */
1370 st_Nil, /* 41 */
1371 st_Nil, /* 42 */
1372 st_Nil, /* 43 */
1373 st_Nil, /* 44 */
1374 st_Nil, /* 45 */
1375 st_Nil, /* 46 */
1376 st_Nil, /* 47 */
1377 st_Nil, /* 48 */
1378 st_Nil, /* 49 */
1379 st_Nil, /* 50 */
1380 st_Nil, /* 51 */
1381 st_Nil, /* 52 */
1382 st_Nil, /* 53 */
1383 st_Nil, /* 54 */
1384 st_Nil, /* 55 */
1385 st_Nil, /* 56 */
1386 st_Nil, /* 57 */
1387 st_Nil, /* 58 */
1388 st_Nil, /* 59 */
1389 st_Nil, /* 60 */
1390 st_Nil, /* 61 */
1391 st_Nil, /* 62 */
1392 st_Nil, /* 63 */
1393 st_Nil, /* 64 */
1394 st_Nil, /* 65 */
1395 st_Nil, /* 66 */
1396 st_Nil, /* 67 */
1397 st_Nil, /* 68 */
1398 st_Nil, /* 69 */
1399 st_Nil, /* 70 */
1400 st_Nil, /* 71 */
1401 st_Nil, /* 72 */
1402 st_Nil, /* 73 */
1403 st_Nil, /* 74 */
1404 st_Nil, /* 75 */
1405 st_Nil, /* 76 */
1406 st_Nil, /* 77 */
1407 st_Nil, /* 78 */
1408 st_Nil, /* 79 */
1409 st_Nil, /* 80 */
1410 st_Nil, /* 81 */
1411 st_Nil, /* 82 */
1412 st_Nil, /* 83 */
1413 st_Nil, /* 84 */
1414 st_Nil, /* 85 */
1415 st_Nil, /* 86 */
1416 st_Nil, /* 87 */
1417 st_Nil, /* 88 */
1418 st_Nil, /* 89 */
1419 st_Nil, /* 90 */
1420 st_Nil, /* 91 */
1421 st_Nil, /* 92 */
1422 st_Nil, /* 93 */
1423 st_Nil, /* 94 */
1424 st_Nil, /* 95 */
1425 st_Nil, /* 96 */
1426 st_Nil, /* 97 */
1427 st_Nil, /* 98 */
1428 st_Nil, /* 99 */
1429 st_Block, /* 100: C_BLOCK block start/end */
1430 st_Proc, /* 101: C_FCN function start/end */
1431 st_End, /* 102: C_EOS end of struct/union/enum */
1432 st_File, /* 103: C_FILE file start */
1433 st_Nil, /* 104: C_LINE line number */
1434 st_Nil, /* 105: C_ALIAS combined type info */
1435 st_Nil, /* 106: C_HIDDEN ??? */
1436 };
1437
1438 /* Map COFF derived types to ECOFF type qualifiers. */
1439 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1440 tq_Nil, /* 0: DT_NON no more qualifiers */
1441 tq_Ptr, /* 1: DT_PTR pointer */
1442 tq_Proc, /* 2: DT_FCN function */
1443 tq_Array, /* 3: DT_ARY array */
1444 };
1445
1446
1447 /* Keep track of different sized allocation requests. */
1448 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1449
1450 \f
1451 /* Pointers and such to the original symbol table that is read in. */
1452 static struct filehdr orig_file_header; /* global object file header */
1453
1454 static HDRR orig_sym_hdr; /* symbolic header on input */
1455 static char *orig_linenum; /* line numbers */
1456 static DNR *orig_dense; /* dense numbers */
1457 static PDR *orig_procs; /* procedures */
1458 static SYMR *orig_local_syms; /* local symbols */
1459 static OPTR *orig_opt_syms; /* optimization symbols */
1460 static AUXU *orig_aux_syms; /* auxiliary symbols */
1461 static char *orig_local_strs; /* local strings */
1462 static char *orig_ext_strs; /* external strings */
1463 static FDR *orig_files; /* file descriptors */
1464 static symint_t *orig_rfds; /* relative file desc's */
1465 static EXTR *orig_ext_syms; /* external symbols */
1466
1467 /* Macros to convert an index into a given object within the original
1468 symbol table. */
1469 #define CHECK(num,max,str) \
1470 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1471
1472 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1473 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1474 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1475 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1476 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1477 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1478 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1479 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1480 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1481 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1482 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1483
1484 /* Various other statics. */
1485 static HDRR symbolic_header; /* symbolic header */
1486 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1487 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1488 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1489 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1490 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1491 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1492 static unsigned long file_offset = 0; /* current file offset */
1493 static unsigned long max_file_offset = 0; /* maximum file offset */
1494 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1495 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1496 static char *progname = (char *) 0; /* program name for errors */
1497 static const char *input_name = "stdin"; /* name of input file */
1498 static char *object_name = (char *) 0; /* tmp. name of object file */
1499 static char *obj_in_name = (char *) 0; /* name of input object file */
1500 static char *cur_line_start = (char *) 0; /* current line read in */
1501 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1502 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1503 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1504 static long line_number = 0; /* current input line number */
1505 static int debug = 0; /* trace functions */
1506 static int version = 0; /* print version # */
1507 static int verbose = 0;
1508 static int had_errors = 0; /* != 0 if errors were found */
1509 static int rename_output = 0; /* != 0 if rename output file*/
1510 static int delete_input = 0; /* != 0 if delete input after done */
1511 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1512
1513
1514 /* Pseudo symbol to use when putting stabs into the symbol table. */
1515 #ifndef STABS_SYMBOL
1516 #define STABS_SYMBOL "@stabs"
1517 #endif
1518
1519 static const char stabs_symbol[] = STABS_SYMBOL;
1520
1521 \f
1522 /* Forward reference for functions. See the definition for more details. */
1523
1524 #ifndef STATIC
1525 #define STATIC static
1526 #endif
1527
1528 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1529 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1530 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1531 shash_t **);
1532 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1533 symint_t, symint_t);
1534 STATIC symint_t add_ext_symbol (EXTR *, int);
1535 STATIC symint_t add_aux_sym_symint (symint_t);
1536 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1537 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1538 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1539 STATIC void add_unknown_tag (tag_t *);
1540 STATIC void add_procedure (const char *, const char *);
1541 STATIC void initialize_init_file (void);
1542 STATIC void add_file (const char *, const char *);
1543 STATIC void add_bytes (varray_t *, char *, Size_t);
1544 STATIC void add_varray_page (varray_t *);
1545 STATIC void update_headers (void);
1546 STATIC void write_varray (varray_t *, off_t, const char *);
1547 STATIC void write_object (void);
1548 STATIC const char *st_to_string (st_t);
1549 STATIC const char *sc_to_string (sc_t);
1550 STATIC char *read_line (void);
1551 STATIC void parse_input (void);
1552 STATIC void mark_stabs (const char *);
1553 STATIC void parse_begin (const char *);
1554 STATIC void parse_bend (const char *);
1555 STATIC void parse_def (const char *);
1556 STATIC void parse_end (const char *);
1557 STATIC void parse_ent (const char *);
1558 STATIC void parse_file (const char *);
1559 STATIC void parse_stabs_common (const char *, const char *, const char *);
1560 STATIC void parse_stabs (const char *);
1561 STATIC void parse_stabn (const char *);
1562 STATIC page_t *read_seek (Size_t, off_t, const char *);
1563 STATIC void copy_object (void);
1564
1565 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1566 STATIC page_t *allocate_page (void);
1567 STATIC page_t *allocate_multiple_pages (Size_t);
1568 STATIC void free_multiple_pages (page_t *, Size_t);
1569
1570 #ifndef MALLOC_CHECK
1571 STATIC page_t *allocate_cluster (Size_t);
1572 #endif
1573
1574 STATIC forward_t *allocate_forward (void);
1575 STATIC scope_t *allocate_scope (void);
1576 STATIC shash_t *allocate_shash (void);
1577 STATIC tag_t *allocate_tag (void);
1578 STATIC thash_t *allocate_thash (void);
1579 STATIC thead_t *allocate_thead (void);
1580 STATIC vlinks_t *allocate_vlinks (void);
1581
1582 STATIC void free_forward (forward_t *);
1583 STATIC void free_scope (scope_t *);
1584 STATIC void free_tag (tag_t *);
1585 STATIC void free_thead (thead_t *);
1586
1587 extern char *optarg;
1588 extern int optind;
1589 extern int opterr;
1590 \f
1591 /* List of assembler pseudo ops and beginning sequences that need
1592 special actions. Someday, this should be a hash table, and such,
1593 but for now a linear list of names and calls to memcmp will
1594 do...... */
1595
1596 typedef struct _pseudo_ops {
1597 const char *const name; /* pseudo-op in ascii */
1598 const int len; /* length of name to compare */
1599 void (*const func) (const char *); /* function to handle line */
1600 } pseudo_ops_t;
1601
1602 static const pseudo_ops_t pseudo_ops[] = {
1603 { "#.def", sizeof("#.def")-1, parse_def },
1604 { "#.begin", sizeof("#.begin")-1, parse_begin },
1605 { "#.bend", sizeof("#.bend")-1, parse_bend },
1606 { ".end", sizeof(".end")-1, parse_end },
1607 { ".ent", sizeof(".ent")-1, parse_ent },
1608 { ".file", sizeof(".file")-1, parse_file },
1609 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1610 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1611 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1612 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1613 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1614 };
1615
1616 \f
1617 /* Command line options for getopt_long. */
1618
1619 static const struct option options[] =
1620 {
1621 { "version", 0, 0, 'V' },
1622 { "verbose", 0, 0, 'v' },
1623 { 0, 0, 0, 0 }
1624 };
1625 \f
1626 /* Add a page to a varray object. */
1627
1628 STATIC void
1629 add_varray_page (varray_t *vp)
1630 {
1631 vlinks_t *new_links = allocate_vlinks ();
1632
1633 #ifdef MALLOC_CHECK
1634 if (vp->object_size > 1)
1635 new_links->datum = xcalloc (1, vp->object_size);
1636 else
1637 #endif
1638 new_links->datum = allocate_page ();
1639
1640 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1641 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1642
1643 new_links->start_index = vp->num_allocated;
1644 vp->objects_last_page = 0;
1645
1646 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1647 vp->first = vp->last = new_links;
1648 else
1649 { /* 2nd or greater allocation */
1650 new_links->prev = vp->last;
1651 vp->last->next = new_links;
1652 vp->last = new_links;
1653 }
1654 }
1655
1656 \f
1657 /* Compute hash code (from tree.c) */
1658
1659 #define HASHBITS 30
1660
1661 STATIC shash_t *
1662 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1663 symint_t *ret_hash_index)
1664 {
1665 unsigned long hi;
1666 Ptrdiff_t i;
1667 shash_t *ptr;
1668 int first_ch = *text;
1669
1670 hi = hash_len;
1671 for (i = 0; i < hash_len; i++)
1672 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1673
1674 hi &= (1 << HASHBITS) - 1;
1675 hi %= SHASH_SIZE;
1676
1677 if (ret_hash_index != (symint_t *) 0)
1678 *ret_hash_index = hi;
1679
1680 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1681 if ((symint_t) hash_len == ptr->len
1682 && first_ch == ptr->string[0]
1683 && memcmp (text, ptr->string, hash_len) == 0)
1684 break;
1685
1686 return ptr;
1687 }
1688
1689 \f
1690 /* Add a string (and null pad) to one of the string tables. A
1691 consequence of hashing strings, is that we don't let strings cross
1692 page boundaries. The extra nulls will be ignored. VP is a string
1693 virtual array, HASH_TBL a pointer to the hash table, the string
1694 starts at START and the position one byte after the string is given
1695 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1696
1697 STATIC symint_t
1698 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1699 const char *end_p1, shash_t **ret_hash)
1700 {
1701 Ptrdiff_t len = end_p1 - start;
1702 shash_t *hash_ptr;
1703 symint_t hi;
1704
1705 if (len >= (Ptrdiff_t) PAGE_USIZE)
1706 fatal ("string too big (%ld bytes)", (long) len);
1707
1708 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1709 if (hash_ptr == (shash_t *) 0)
1710 {
1711 char *p;
1712
1713 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1714 {
1715 vp->num_allocated
1716 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1717 add_varray_page (vp);
1718 }
1719
1720 hash_ptr = allocate_shash ();
1721 hash_ptr->next = hash_tbl[hi];
1722 hash_tbl[hi] = hash_ptr;
1723
1724 hash_ptr->len = len;
1725 hash_ptr->indx = vp->num_allocated;
1726 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1727
1728 vp->objects_last_page += len+1;
1729 vp->num_allocated += len+1;
1730
1731 while (len-- > 0)
1732 *p++ = *start++;
1733
1734 *p = '\0';
1735 }
1736
1737 if (ret_hash != (shash_t **) 0)
1738 *ret_hash = hash_ptr;
1739
1740 return hash_ptr->indx;
1741 }
1742
1743 \f
1744 /* Add a local symbol. The symbol string starts at STR_START and the
1745 first byte after it is marked by STR_END_P1. The symbol has type
1746 TYPE and storage class STORAGE and value VALUE. INDX is an index
1747 to local/aux. symbols. */
1748
1749 STATIC symint_t
1750 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1751 sc_t storage, symint_t value, symint_t indx)
1752 {
1753 symint_t ret;
1754 SYMR *psym;
1755 scope_t *pscope;
1756 thead_t *ptag_head;
1757 tag_t *ptag;
1758 tag_t *ptag_next;
1759 varray_t *vp = &cur_file_ptr->symbols;
1760 int scope_delta = 0;
1761 shash_t *hash_ptr = (shash_t *) 0;
1762
1763 if (vp->objects_last_page == vp->objects_per_page)
1764 add_varray_page (vp);
1765
1766 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1767
1768 psym->value = value;
1769 psym->st = (unsigned) type;
1770 psym->sc = (unsigned) storage;
1771 psym->index = indx;
1772 psym->iss = (str_start == (const char *) 0)
1773 ? 0
1774 : add_string (&cur_file_ptr->strings,
1775 &cur_file_ptr->shash_head[0],
1776 str_start,
1777 str_end_p1,
1778 &hash_ptr);
1779
1780 ret = vp->num_allocated++;
1781
1782 if (MIPS_IS_STAB (psym))
1783 return ret;
1784
1785 /* Save the symbol within the hash table if this is a static
1786 item, and it has a name. */
1787 if (hash_ptr != (shash_t *) 0
1788 && (type == st_Global || type == st_Static || type == st_Label
1789 || type == st_Proc || type == st_StaticProc))
1790 hash_ptr->sym_ptr = psym;
1791
1792 /* push or pop a scope if appropriate. */
1793 switch (type)
1794 {
1795 default:
1796 break;
1797
1798 case st_File: /* beginning of file */
1799 case st_Proc: /* procedure */
1800 case st_StaticProc: /* static procedure */
1801 case st_Block: /* begin scope */
1802 pscope = allocate_scope ();
1803 pscope->prev = cur_file_ptr->cur_scope;
1804 pscope->lsym = psym;
1805 pscope->lnumber = ret;
1806 pscope->type = type;
1807 cur_file_ptr->cur_scope = pscope;
1808
1809 if (type != st_File)
1810 scope_delta = 1;
1811
1812 /* For every block type except file, struct, union, or
1813 enumeration blocks, push a level on the tag stack. We omit
1814 file types, so that tags can span file boundaries. */
1815 if (type != st_File && storage != sc_Info)
1816 {
1817 ptag_head = allocate_thead ();
1818 ptag_head->first_tag = 0;
1819 ptag_head->prev = cur_tag_head;
1820 cur_tag_head = ptag_head;
1821 }
1822 break;
1823
1824 case st_End:
1825 pscope = cur_file_ptr->cur_scope;
1826 if (pscope == (scope_t *) 0)
1827 error ("internal error, too many st_End's");
1828
1829 else
1830 {
1831 st_t begin_type = (st_t) pscope->lsym->st;
1832
1833 if (begin_type != st_File)
1834 scope_delta = -1;
1835
1836 /* Except for file, structure, union, or enumeration end
1837 blocks remove all tags created within this scope. */
1838 if (begin_type != st_File && storage != sc_Info)
1839 {
1840 ptag_head = cur_tag_head;
1841 cur_tag_head = ptag_head->prev;
1842
1843 for (ptag = ptag_head->first_tag;
1844 ptag != (tag_t *) 0;
1845 ptag = ptag_next)
1846 {
1847 if (ptag->forward_ref != (forward_t *) 0)
1848 add_unknown_tag (ptag);
1849
1850 ptag_next = ptag->same_block;
1851 ptag->hash_ptr->tag_ptr = ptag->same_name;
1852 free_tag (ptag);
1853 }
1854
1855 free_thead (ptag_head);
1856 }
1857
1858 cur_file_ptr->cur_scope = pscope->prev;
1859 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1860
1861 if (storage != sc_Info)
1862 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1863
1864 if (begin_type == st_File || begin_type == st_Block)
1865 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1866
1867 /* Functions push two or more aux words as follows:
1868 1st word: index+1 of the end symbol
1869 2nd word: type of the function (plus any aux words needed).
1870 Also, tie the external pointer back to the function begin symbol. */
1871 else
1872 {
1873 symint_t type;
1874 pscope->lsym->index = add_aux_sym_symint (ret+1);
1875 type = add_aux_sym_tir (&last_func_type_info,
1876 hash_no,
1877 &cur_file_ptr->thash_head[0]);
1878 if (last_func_eptr)
1879 {
1880 last_func_eptr->ifd = cur_file_ptr->file_index;
1881
1882 /* The index for an external st_Proc symbol is the index
1883 of the st_Proc symbol in the local symbol table. */
1884 last_func_eptr->asym.index = psym->index;
1885 }
1886 }
1887
1888 free_scope (pscope);
1889 }
1890 }
1891
1892 cur_file_ptr->nested_scopes += scope_delta;
1893
1894 if (debug && type != st_File
1895 && (debug > 2 || type == st_Block || type == st_End
1896 || type == st_Proc || type == st_StaticProc))
1897 {
1898 const char *sc_str = sc_to_string (storage);
1899 const char *st_str = st_to_string (type);
1900 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1901
1902 fprintf (stderr,
1903 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1904 value, depth, sc_str);
1905
1906 if (str_start && str_end_p1 - str_start > 0)
1907 fprintf (stderr, " st= %-11s name= %.*s\n",
1908 st_str, (int) (str_end_p1 - str_start), str_start);
1909 else
1910 {
1911 Size_t len = strlen (st_str);
1912 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1913 }
1914 }
1915
1916 return ret;
1917 }
1918
1919 \f
1920 /* Add an external symbol with symbol pointer ESYM and file index
1921 IFD. */
1922
1923 STATIC symint_t
1924 add_ext_symbol (EXTR *esym, int ifd)
1925 {
1926 const char *str_start; /* first byte in string */
1927 const char *str_end_p1; /* first byte after string */
1928 EXTR *psym;
1929 varray_t *vp = &ext_symbols;
1930 shash_t *hash_ptr = (shash_t *) 0;
1931
1932 str_start = ORIG_ESTRS (esym->asym.iss);
1933 str_end_p1 = str_start + strlen (str_start);
1934
1935 if (debug > 1)
1936 {
1937 long value = esym->asym.value;
1938 const char *sc_str = sc_to_string ((sc_t) esym->asym.sc);
1939 const char *st_str = st_to_string ((st_t) esym->asym.st);
1940
1941 fprintf (stderr,
1942 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1943 value, ifd, sc_str);
1944
1945 if (str_start && str_end_p1 - str_start > 0)
1946 fprintf (stderr, " st= %-11s name= %.*s\n",
1947 st_str, (int) (str_end_p1 - str_start), str_start);
1948 else
1949 fprintf (stderr, " st= %s\n", st_str);
1950 }
1951
1952 if (vp->objects_last_page == vp->objects_per_page)
1953 add_varray_page (vp);
1954
1955 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1956
1957 *psym = *esym;
1958 psym->ifd = ifd;
1959 psym->asym.index = indexNil;
1960 psym->asym.iss = (str_start == (const char *) 0)
1961 ? 0
1962 : add_string (&ext_strings,
1963 &ext_str_hash[0],
1964 str_start,
1965 str_end_p1,
1966 &hash_ptr);
1967
1968 hash_ptr->esym_ptr = psym;
1969 return vp->num_allocated++;
1970 }
1971
1972 \f
1973 /* Add an auxiliary symbol (passing a symint). */
1974
1975 STATIC symint_t
1976 add_aux_sym_symint (symint_t aux_word)
1977 {
1978 AUXU *aux_ptr;
1979 efdr_t *file_ptr = cur_file_ptr;
1980 varray_t *vp = &file_ptr->aux_syms;
1981
1982 if (vp->objects_last_page == vp->objects_per_page)
1983 add_varray_page (vp);
1984
1985 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1986 aux_ptr->isym = aux_word;
1987
1988 return vp->num_allocated++;
1989 }
1990
1991
1992 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1993
1994 STATIC symint_t
1995 add_aux_sym_rndx (int file_index, symint_t sym_index)
1996 {
1997 AUXU *aux_ptr;
1998 efdr_t *file_ptr = cur_file_ptr;
1999 varray_t *vp = &file_ptr->aux_syms;
2000
2001 if (vp->objects_last_page == vp->objects_per_page)
2002 add_varray_page (vp);
2003
2004 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2005 aux_ptr->rndx.rfd = file_index;
2006 aux_ptr->rndx.index = sym_index;
2007
2008 return vp->num_allocated++;
2009 }
2010
2011 \f
2012 /* Add an auxiliary symbol (passing the basic type and possibly
2013 type qualifiers). */
2014
2015 STATIC symint_t
2016 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2017 {
2018 AUXU *aux_ptr;
2019 efdr_t *file_ptr = cur_file_ptr;
2020 varray_t *vp = &file_ptr->aux_syms;
2021 static AUXU init_aux;
2022 symint_t ret;
2023 int i;
2024 AUXU aux;
2025
2026 aux = init_aux;
2027 aux.ti.bt = (int) t->basic_type;
2028 aux.ti.continued = 0;
2029 aux.ti.fBitfield = t->bitfield;
2030
2031 aux.ti.tq0 = (int) t->type_qualifiers[0];
2032 aux.ti.tq1 = (int) t->type_qualifiers[1];
2033 aux.ti.tq2 = (int) t->type_qualifiers[2];
2034 aux.ti.tq3 = (int) t->type_qualifiers[3];
2035 aux.ti.tq4 = (int) t->type_qualifiers[4];
2036 aux.ti.tq5 = (int) t->type_qualifiers[5];
2037
2038
2039 /* For anything that adds additional information, we must not hash,
2040 so check here, and reset our state. */
2041
2042 if (state != hash_no
2043 && (t->type_qualifiers[0] == tq_Array
2044 || t->type_qualifiers[1] == tq_Array
2045 || t->type_qualifiers[2] == tq_Array
2046 || t->type_qualifiers[3] == tq_Array
2047 || t->type_qualifiers[4] == tq_Array
2048 || t->type_qualifiers[5] == tq_Array
2049 || t->basic_type == bt_Struct
2050 || t->basic_type == bt_Union
2051 || t->basic_type == bt_Enum
2052 || t->bitfield
2053 || t->num_dims > 0))
2054 state = hash_no;
2055
2056 /* See if we can hash this type, and save some space, but some types
2057 can't be hashed (because they contain arrays or continuations),
2058 and others can be put into the hash list, but cannot use existing
2059 types because other aux entries precede this one. */
2060
2061 if (state != hash_no)
2062 {
2063 thash_t *hash_ptr;
2064 symint_t hi;
2065
2066 hi = aux.isym & ((1 << HASHBITS) - 1);
2067 hi %= THASH_SIZE;
2068
2069 for (hash_ptr = hash_tbl[hi];
2070 hash_ptr != (thash_t *) 0;
2071 hash_ptr = hash_ptr->next)
2072 {
2073 if (aux.isym == hash_ptr->type.isym)
2074 break;
2075 }
2076
2077 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2078 return hash_ptr->indx;
2079
2080 if (hash_ptr == (thash_t *) 0)
2081 {
2082 hash_ptr = allocate_thash ();
2083 hash_ptr->next = hash_tbl[hi];
2084 hash_ptr->type = aux;
2085 hash_ptr->indx = vp->num_allocated;
2086 hash_tbl[hi] = hash_ptr;
2087 }
2088 }
2089
2090 /* Everything is set up, add the aux symbol. */
2091 if (vp->objects_last_page == vp->objects_per_page)
2092 add_varray_page (vp);
2093
2094 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2095 *aux_ptr = aux;
2096
2097 ret = vp->num_allocated++;
2098
2099 /* Add bitfield length if it exists.
2100
2101 NOTE: Mips documentation claims bitfield goes at the end of the
2102 AUX record, but the DECstation compiler emits it here.
2103 (This would only make a difference for enum bitfields.)
2104
2105 Also note: We use the last size given since gcc may emit 2
2106 for an enum bitfield. */
2107
2108 if (t->bitfield)
2109 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2110
2111
2112 /* Add tag information if needed. Structure, union, and enum
2113 references add 2 aux symbols: a [file index, symbol index]
2114 pointer to the structure type, and the current file index. */
2115
2116 if (t->basic_type == bt_Struct
2117 || t->basic_type == bt_Union
2118 || t->basic_type == bt_Enum)
2119 {
2120 symint_t file_index = t->tag_ptr->ifd;
2121 symint_t sym_index = t->tag_ptr->indx;
2122
2123 if (t->unknown_tag)
2124 {
2125 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2126 (void) add_aux_sym_symint ((symint_t)-1);
2127 }
2128 else if (sym_index != indexNil)
2129 {
2130 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2131 (void) add_aux_sym_symint (file_index);
2132 }
2133 else
2134 {
2135 forward_t *forward_ref = allocate_forward ();
2136
2137 forward_ref->type_ptr = aux_ptr;
2138 forward_ref->next = t->tag_ptr->forward_ref;
2139 t->tag_ptr->forward_ref = forward_ref;
2140
2141 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2142 forward_ref->index_ptr
2143 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2144
2145 (void) add_aux_sym_symint (file_index);
2146 forward_ref->ifd_ptr
2147 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2148 }
2149 }
2150
2151 /* Add information about array bounds if they exist. */
2152 for (i = 0; i < t->num_dims; i++)
2153 {
2154 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2155 cur_file_ptr->int_type);
2156
2157 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2158 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2159 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2160 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2161 ? 0
2162 : (t->sizes[i] * 8) / t->dimensions[i]);
2163 };
2164
2165 /* NOTE: Mips documentation claims that the bitfield width goes here.
2166 But it needs to be emitted earlier. */
2167
2168 return ret;
2169 }
2170
2171 \f
2172 /* Add a tag to the tag table (unless it already exists). */
2173
2174 STATIC tag_t *
2175 get_tag (const char *tag_start, /* 1st byte of tag name */
2176 const char *tag_end_p1, /* 1st byte after tag name */
2177 symint_t indx, /* index of tag start block */
2178 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2179
2180 {
2181 shash_t *hash_ptr;
2182 tag_t *tag_ptr;
2183 hash_ptr = hash_string (tag_start,
2184 tag_end_p1 - tag_start,
2185 &tag_hash[0],
2186 (symint_t *) 0);
2187
2188 if (hash_ptr != (shash_t *) 0
2189 && hash_ptr->tag_ptr != (tag_t *) 0)
2190 {
2191 tag_ptr = hash_ptr->tag_ptr;
2192 if (indx != indexNil)
2193 {
2194 tag_ptr->basic_type = basic_type;
2195 tag_ptr->ifd = cur_file_ptr->file_index;
2196 tag_ptr->indx = indx;
2197 }
2198 return tag_ptr;
2199 }
2200
2201 (void) add_string (&tag_strings,
2202 &tag_hash[0],
2203 tag_start,
2204 tag_end_p1,
2205 &hash_ptr);
2206
2207 tag_ptr = allocate_tag ();
2208 tag_ptr->forward_ref = (forward_t *) 0;
2209 tag_ptr->hash_ptr = hash_ptr;
2210 tag_ptr->same_name = hash_ptr->tag_ptr;
2211 tag_ptr->basic_type = basic_type;
2212 tag_ptr->indx = indx;
2213 tag_ptr->ifd = (indx == indexNil
2214 ? (symint_t) -1 : cur_file_ptr->file_index);
2215 tag_ptr->same_block = cur_tag_head->first_tag;
2216
2217 cur_tag_head->first_tag = tag_ptr;
2218 hash_ptr->tag_ptr = tag_ptr;
2219
2220 return tag_ptr;
2221 }
2222
2223 \f
2224 /* Add an unknown {struct, union, enum} tag. */
2225
2226 STATIC void
2227 add_unknown_tag (tag_t *ptag)
2228 {
2229 shash_t *hash_ptr = ptag->hash_ptr;
2230 char *name_start = hash_ptr->string;
2231 char *name_end_p1 = name_start + hash_ptr->len;
2232 forward_t *f_next = ptag->forward_ref;
2233 forward_t *f_cur;
2234 int sym_index;
2235 int file_index = cur_file_ptr->file_index;
2236
2237 if (debug > 1)
2238 {
2239 const char *agg_type = "{unknown aggregate type}";
2240 switch (ptag->basic_type)
2241 {
2242 case bt_Struct: agg_type = "struct"; break;
2243 case bt_Union: agg_type = "union"; break;
2244 case bt_Enum: agg_type = "enum"; break;
2245 default: break;
2246 }
2247
2248 fprintf (stderr, "unknown %s %.*s found\n",
2249 agg_type, (int) hash_ptr->len, name_start);
2250 }
2251
2252 sym_index = add_local_symbol (name_start,
2253 name_end_p1,
2254 st_Block,
2255 sc_Info,
2256 (symint_t) 0,
2257 (symint_t) 0);
2258
2259 (void) add_local_symbol (name_start,
2260 name_end_p1,
2261 st_End,
2262 sc_Info,
2263 (symint_t) 0,
2264 (symint_t) 0);
2265
2266 while (f_next != (forward_t *) 0)
2267 {
2268 f_cur = f_next;
2269 f_next = f_next->next;
2270
2271 f_cur->ifd_ptr->isym = file_index;
2272 f_cur->index_ptr->rndx.index = sym_index;
2273
2274 free_forward (f_cur);
2275 }
2276
2277 return;
2278 }
2279
2280 \f
2281 /* Add a procedure to the current file's list of procedures, and record
2282 this is the current procedure. If the assembler created a PDR for
2283 this procedure, use that to initialize the current PDR. */
2284
2285 STATIC void
2286 add_procedure (const char *func_start, /* 1st byte of func name */
2287 const char *func_end_p1) /* 1st byte after func name */
2288 {
2289 PDR *new_proc_ptr;
2290 efdr_t *file_ptr = cur_file_ptr;
2291 varray_t *vp = &file_ptr->procs;
2292 symint_t value = 0;
2293 st_t proc_type = st_Proc;
2294 shash_t *shash_ptr = hash_string (func_start,
2295 func_end_p1 - func_start,
2296 &orig_str_hash[0],
2297 (symint_t *) 0);
2298
2299 if (debug)
2300 fputc ('\n', stderr);
2301
2302 if (vp->objects_last_page == vp->objects_per_page)
2303 add_varray_page (vp);
2304
2305 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2306
2307 vp->num_allocated++;
2308
2309
2310 /* Did the assembler create this procedure? If so, get the PDR information. */
2311 cur_oproc_ptr = (PDR *) 0;
2312 if (shash_ptr != (shash_t *) 0)
2313 {
2314 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2315 SYMR *sym_ptr = shash_ptr->sym_ptr;
2316
2317 if (old_proc_ptr != (PDR *) 0
2318 && sym_ptr != (SYMR *) 0
2319 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2320 {
2321 cur_oproc_begin = sym_ptr;
2322 cur_oproc_end = shash_ptr->end_ptr;
2323 value = sym_ptr->value;
2324
2325 cur_oproc_ptr = old_proc_ptr;
2326 proc_type = (st_t) sym_ptr->st;
2327 *new_proc_ptr = *old_proc_ptr; /* initialize */
2328 }
2329 }
2330
2331 if (cur_oproc_ptr == (PDR *) 0)
2332 error ("did not find a PDR block for %.*s",
2333 (int) (func_end_p1 - func_start), func_start);
2334
2335 /* Determine the start of symbols. */
2336 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2337
2338 /* Push the start of the function. */
2339 (void) add_local_symbol (func_start, func_end_p1,
2340 proc_type, sc_Text,
2341 value,
2342 (symint_t) 0);
2343 }
2344
2345 \f
2346 /* Initialize the init_file structure. */
2347
2348 STATIC void
2349 initialize_init_file (void)
2350 {
2351 union {
2352 unsigned char c[4];
2353 int i;
2354 } endian_test;
2355
2356 memset (&init_file, 0, sizeof (init_file));
2357
2358 init_file.fdr.lang = langC;
2359 init_file.fdr.fMerge = 1;
2360 init_file.fdr.glevel = GLEVEL_2;
2361
2362 /* mips-tfile doesn't attempt to perform byte swapping and always writes
2363 out integers in its native ordering. For cross-compilers, this need
2364 not be the same as either the host or the target. The simplest thing
2365 to do is skip the configury and perform an introspective test. */
2366 /* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64
2367 and would/may require significant work to be used in cross-compiler
2368 configurations, so we could simply admit defeat and hard code this as
2369 little-endian, i.e. init_file.fdr.fBigendian = 0. */
2370 endian_test.i = 1;
2371 if (endian_test.c[3])
2372 init_file.fdr.fBigendian = 1;
2373
2374 INITIALIZE_VARRAY (&init_file.strings, char);
2375 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2376 INITIALIZE_VARRAY (&init_file.procs, PDR);
2377 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2378
2379 init_file_initialized = 1;
2380 }
2381
2382 /* Add a new filename, and set up all of the file relative
2383 virtual arrays (strings, symbols, aux syms, etc.). Record
2384 where the current file structure lives. */
2385
2386 STATIC void
2387 add_file (const char *file_start, /* first byte in string */
2388 const char *file_end_p1) /* first byte after string */
2389 {
2390 static char zero_bytes[2] = { '\0', '\0' };
2391
2392 Ptrdiff_t len = file_end_p1 - file_start;
2393 int first_ch = *file_start;
2394 efdr_t *file_ptr;
2395
2396 if (debug)
2397 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2398
2399 /* See if the file has already been created. */
2400 for (file_ptr = first_file;
2401 file_ptr != (efdr_t *) 0;
2402 file_ptr = file_ptr->next_file)
2403 {
2404 if (first_ch == file_ptr->name[0]
2405 && file_ptr->name[len] == '\0'
2406 && memcmp (file_start, file_ptr->name, len) == 0)
2407 {
2408 cur_file_ptr = file_ptr;
2409 break;
2410 }
2411 }
2412
2413 /* If this is a new file, create it. */
2414 if (file_ptr == (efdr_t *) 0)
2415 {
2416 if (file_desc.objects_last_page == file_desc.objects_per_page)
2417 add_varray_page (&file_desc);
2418
2419 if (! init_file_initialized)
2420 initialize_init_file ();
2421
2422 file_ptr = cur_file_ptr
2423 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2424 *file_ptr = init_file;
2425
2426 file_ptr->file_index = file_desc.num_allocated++;
2427
2428 /* Allocate the string hash table. */
2429 file_ptr->shash_head = (shash_t **) allocate_page ();
2430
2431 /* Make sure 0 byte in string table is null */
2432 add_string (&file_ptr->strings,
2433 &file_ptr->shash_head[0],
2434 &zero_bytes[0],
2435 &zero_bytes[0],
2436 (shash_t **) 0);
2437
2438 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2439 fatal ("filename goes over one page boundary");
2440
2441 /* Push the start of the filename. We assume that the filename
2442 will be stored at string offset 1. */
2443 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2444 (symint_t) 0, (symint_t) 0);
2445 file_ptr->fdr.rss = 1;
2446 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2447 file_ptr->name_len = file_end_p1 - file_start;
2448
2449 /* Update the linked list of file descriptors. */
2450 *last_file_ptr = file_ptr;
2451 last_file_ptr = &file_ptr->next_file;
2452
2453 /* Add void & int types to the file (void should be first to catch
2454 errant 0's within the index fields). */
2455 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2456 hash_yes,
2457 &cur_file_ptr->thash_head[0]);
2458
2459 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2460 hash_yes,
2461 &cur_file_ptr->thash_head[0]);
2462 }
2463 }
2464
2465 \f
2466 /* Add a stream of random bytes to a varray. */
2467
2468 STATIC void
2469 add_bytes (varray_t *vp, /* virtual array to add too */
2470 char *input_ptr, /* start of the bytes */
2471 Size_t nitems) /* # items to move */
2472 {
2473 Size_t move_items;
2474 Size_t move_bytes;
2475 char *ptr;
2476
2477 while (nitems > 0)
2478 {
2479 if (vp->objects_last_page >= vp->objects_per_page)
2480 add_varray_page (vp);
2481
2482 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2483 move_items = vp->objects_per_page - vp->objects_last_page;
2484 if (move_items > nitems)
2485 move_items = nitems;
2486
2487 move_bytes = move_items * vp->object_size;
2488 nitems -= move_items;
2489
2490 if (move_bytes >= 32)
2491 {
2492 (void) memcpy (ptr, input_ptr, move_bytes);
2493 input_ptr += move_bytes;
2494 }
2495 else
2496 {
2497 while (move_bytes-- > 0)
2498 *ptr++ = *input_ptr++;
2499 }
2500 }
2501 }
2502
2503 \f
2504 /* Convert storage class to string. */
2505
2506 STATIC const char *
2507 sc_to_string (sc_t storage_class)
2508 {
2509 switch (storage_class)
2510 {
2511 case sc_Nil: return "Nil,";
2512 case sc_Text: return "Text,";
2513 case sc_Data: return "Data,";
2514 case sc_Bss: return "Bss,";
2515 case sc_Register: return "Register,";
2516 case sc_Abs: return "Abs,";
2517 case sc_Undefined: return "Undefined,";
2518 case sc_CdbLocal: return "CdbLocal,";
2519 case sc_Bits: return "Bits,";
2520 case sc_CdbSystem: return "CdbSystem,";
2521 case sc_RegImage: return "RegImage,";
2522 case sc_Info: return "Info,";
2523 case sc_UserStruct: return "UserStruct,";
2524 case sc_SData: return "SData,";
2525 case sc_SBss: return "SBss,";
2526 case sc_RData: return "RData,";
2527 case sc_Var: return "Var,";
2528 case sc_Common: return "Common,";
2529 case sc_SCommon: return "SCommon,";
2530 case sc_VarRegister: return "VarRegister,";
2531 case sc_Variant: return "Variant,";
2532 case sc_SUndefined: return "SUndefined,";
2533 case sc_Init: return "Init,";
2534 case sc_Max: return "Max,";
2535 }
2536
2537 return "???,";
2538 }
2539
2540 \f
2541 /* Convert symbol type to string. */
2542
2543 STATIC const char *
2544 st_to_string (st_t symbol_type)
2545 {
2546 switch (symbol_type)
2547 {
2548 case st_Nil: return "Nil,";
2549 case st_Global: return "Global,";
2550 case st_Static: return "Static,";
2551 case st_Param: return "Param,";
2552 case st_Local: return "Local,";
2553 case st_Label: return "Label,";
2554 case st_Proc: return "Proc,";
2555 case st_Block: return "Block,";
2556 case st_End: return "End,";
2557 case st_Member: return "Member,";
2558 case st_Typedef: return "Typedef,";
2559 case st_File: return "File,";
2560 case st_RegReloc: return "RegReloc,";
2561 case st_Forward: return "Forward,";
2562 case st_StaticProc: return "StaticProc,";
2563 case st_Constant: return "Constant,";
2564 case st_Str: return "String,";
2565 case st_Number: return "Number,";
2566 case st_Expr: return "Expr,";
2567 case st_Type: return "Type,";
2568 case st_Max: return "Max,";
2569 }
2570
2571 return "???,";
2572 }
2573
2574 \f
2575 /* Read a line from standard input, and return the start of the buffer
2576 (which is grows if the line is too big). We split lines at the
2577 semi-colon, and return each logical line independently. */
2578
2579 STATIC char *
2580 read_line (void)
2581 {
2582 static int line_split_p = 0;
2583 int string_p = 0;
2584 int comment_p = 0;
2585 int ch;
2586 char *ptr;
2587
2588 if (cur_line_start == (char *) 0)
2589 { /* allocate initial page */
2590 cur_line_start = (char *) allocate_page ();
2591 cur_line_alloc = PAGE_SIZE;
2592 }
2593
2594 if (!line_split_p)
2595 line_number++;
2596
2597 line_split_p = 0;
2598 cur_line_nbytes = 0;
2599
2600 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2601 {
2602 if (++cur_line_nbytes >= cur_line_alloc-1)
2603 {
2604 int num_pages = cur_line_alloc / PAGE_SIZE;
2605 char *old_buffer = cur_line_start;
2606
2607 cur_line_alloc += PAGE_SIZE;
2608 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2609 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2610
2611 ptr = cur_line_start + cur_line_nbytes - 1;
2612 }
2613
2614 if (ch == '\n')
2615 {
2616 *ptr++ = '\n';
2617 *ptr = '\0';
2618 cur_line_ptr = cur_line_start;
2619 return cur_line_ptr;
2620 }
2621
2622 else if (ch == '\0')
2623 error ("null character found in input");
2624
2625 else if (!comment_p)
2626 {
2627 if (ch == '"')
2628 string_p = !string_p;
2629
2630 else if (ch == '#')
2631 comment_p++;
2632
2633 else if (ch == ';' && !string_p)
2634 {
2635 line_split_p = 1;
2636 *ptr++ = '\n';
2637 *ptr = '\0';
2638 cur_line_ptr = cur_line_start;
2639 return cur_line_ptr;
2640 }
2641 }
2642 }
2643
2644 if (ferror (stdin))
2645 pfatal_with_name (input_name);
2646
2647 cur_line_ptr = (char *) 0;
2648 return (char *) 0;
2649 }
2650
2651 \f
2652 /* Parse #.begin directives which have a label as the first argument
2653 which gives the location of the start of the block. */
2654
2655 STATIC void
2656 parse_begin (const char *start)
2657 {
2658 const char *end_p1; /* end of label */
2659 int ch;
2660 shash_t *hash_ptr; /* hash pointer to lookup label */
2661
2662 if (cur_file_ptr == (efdr_t *) 0)
2663 {
2664 error ("#.begin directive without a preceding .file directive");
2665 return;
2666 }
2667
2668 if (cur_proc_ptr == (PDR *) 0)
2669 {
2670 error ("#.begin directive without a preceding .ent directive");
2671 return;
2672 }
2673
2674 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2675 ;
2676
2677 hash_ptr = hash_string (start,
2678 end_p1 - start,
2679 &orig_str_hash[0],
2680 (symint_t *) 0);
2681
2682 if (hash_ptr == (shash_t *) 0)
2683 {
2684 error ("label %.*s not found for #.begin",
2685 (int) (end_p1 - start), start);
2686 return;
2687 }
2688
2689 if (cur_oproc_begin == (SYMR *) 0)
2690 {
2691 error ("procedure table %.*s not found for #.begin",
2692 (int) (end_p1 - start), start);
2693 return;
2694 }
2695
2696 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2697 st_Block, sc_Text,
2698 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2699 (symint_t) 0);
2700 }
2701
2702 \f
2703 /* Parse #.bend directives which have a label as the first argument
2704 which gives the location of the end of the block. */
2705
2706 STATIC void
2707 parse_bend (const char *start)
2708 {
2709 const char *end_p1; /* end of label */
2710 int ch;
2711 shash_t *hash_ptr; /* hash pointer to lookup label */
2712
2713 if (cur_file_ptr == (efdr_t *) 0)
2714 {
2715 error ("#.begin directive without a preceding .file directive");
2716 return;
2717 }
2718
2719 if (cur_proc_ptr == (PDR *) 0)
2720 {
2721 error ("#.bend directive without a preceding .ent directive");
2722 return;
2723 }
2724
2725 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2726 ;
2727
2728 hash_ptr = hash_string (start,
2729 end_p1 - start,
2730 &orig_str_hash[0],
2731 (symint_t *) 0);
2732
2733 if (hash_ptr == (shash_t *) 0)
2734 {
2735 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2736 return;
2737 }
2738
2739 if (cur_oproc_begin == (SYMR *) 0)
2740 {
2741 error ("procedure table %.*s not found for #.bend",
2742 (int) (end_p1 - start), start);
2743 return;
2744 }
2745
2746 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2747 st_End, sc_Text,
2748 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2749 (symint_t) 0);
2750 }
2751
2752 \f
2753 /* Parse #.def directives, which are contain standard COFF subdirectives
2754 to describe the debugging format. These subdirectives include:
2755
2756 .scl specify storage class
2757 .val specify a value
2758 .endef specify end of COFF directives
2759 .type specify the type
2760 .size specify the size of an array
2761 .dim specify an array dimension
2762 .tag specify a tag for a struct, union, or enum. */
2763
2764 STATIC void
2765 parse_def (const char *name_start)
2766 {
2767 const char *dir_start; /* start of current directive*/
2768 const char *dir_end_p1; /* end+1 of current directive*/
2769 const char *arg_start; /* start of current argument */
2770 const char *arg_end_p1; /* end+1 of current argument */
2771 const char *name_end_p1; /* end+1 of label */
2772 const char *tag_start = 0; /* start of tag name */
2773 const char *tag_end_p1 = 0; /* end+1 of tag name */
2774 sc_t storage_class = sc_Nil;
2775 st_t symbol_type = st_Nil;
2776 type_info_t t;
2777 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2778 int is_function = 0; /* != 0 if function */
2779 symint_t value = 0;
2780 symint_t indx = cur_file_ptr->void_type;
2781 int error_line = 0;
2782 symint_t arg_number;
2783 symint_t temp_array[ N_TQ ];
2784 int arg_was_number;
2785 int ch, i;
2786 Ptrdiff_t len;
2787
2788 static int inside_enumeration = 0; /* is this an enumeration? */
2789
2790
2791 /* Initialize the type information. */
2792 t = type_info_init;
2793
2794
2795 /* Search for the end of the name being defined. */
2796 /* Allow spaces and such in names for G++ templates, which produce stabs
2797 that look like:
2798
2799 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2800
2801 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2802 ;
2803
2804 if (ch == '\0')
2805 {
2806 error_line = __LINE__;
2807 saber_stop ();
2808 goto bomb_out;
2809 }
2810
2811 /* Parse the remaining subdirectives now. */
2812 dir_start = name_end_p1+1;
2813 for (;;)
2814 {
2815 while ((ch = *dir_start) == ' ' || ch == '\t')
2816 ++dir_start;
2817
2818 if (ch != '.')
2819 {
2820 error_line = __LINE__;
2821 saber_stop ();
2822 goto bomb_out;
2823 }
2824
2825 /* Are we done? */
2826 if (dir_start[1] == 'e'
2827 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2828 break;
2829
2830 /* Pick up the subdirective now. */
2831 for (dir_end_p1 = dir_start+1;
2832 (ch = *dir_end_p1) != ' ' && ch != '\t';
2833 dir_end_p1++)
2834 {
2835 if (ch == '\0' || ISSPACE (ch))
2836 {
2837 error_line = __LINE__;
2838 saber_stop ();
2839 goto bomb_out;
2840 }
2841 }
2842
2843 /* Pick up the subdirective argument now. */
2844 arg_was_number = arg_number = 0;
2845 arg_end_p1 = 0;
2846 arg_start = dir_end_p1+1;
2847 ch = *arg_start;
2848 while (ch == ' ' || ch == '\t')
2849 ch = *++arg_start;
2850
2851 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2852 {
2853 int ch2;
2854 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2855 /* It's only a number if followed by ';' or ','. */
2856 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2857 arg_was_number++;
2858 }
2859
2860 else if (ch == '\0' || ISSPACE (ch))
2861 {
2862 error_line = __LINE__;
2863 saber_stop ();
2864 goto bomb_out;
2865 }
2866
2867 if (!arg_was_number)
2868 {
2869 /* Allow spaces and such in names for G++ templates. */
2870 for (arg_end_p1 = arg_start+1;
2871 (ch = *arg_end_p1) != ';' && ch != '\0';
2872 arg_end_p1++)
2873 ;
2874
2875 if (ch == '\0')
2876 {
2877 error_line = __LINE__;
2878 saber_stop ();
2879 goto bomb_out;
2880 }
2881 }
2882
2883 /* Classify the directives now. */
2884 len = dir_end_p1 - dir_start;
2885 switch (dir_start[1])
2886 {
2887 default:
2888 error_line = __LINE__;
2889 saber_stop ();
2890 goto bomb_out;
2891
2892 case 'd':
2893 if (len == sizeof (".dim")-1
2894 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2895 && arg_was_number)
2896 {
2897 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2898
2899 *t_ptr = arg_number;
2900 while (*arg_end_p1 == ',' && arg_was_number)
2901 {
2902 arg_start = arg_end_p1+1;
2903 ch = *arg_start;
2904 while (ch == ' ' || ch == '\t')
2905 ch = *++arg_start;
2906
2907 arg_was_number = 0;
2908 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2909 {
2910 int ch2;
2911 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2912 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2913 arg_was_number++;
2914
2915 if (t_ptr == &temp_array[0])
2916 {
2917 error_line = __LINE__;
2918 saber_stop ();
2919 goto bomb_out;
2920 }
2921
2922 *--t_ptr = arg_number;
2923 }
2924 }
2925
2926 /* Reverse order of dimensions. */
2927 while (t_ptr <= &temp_array[ N_TQ-1 ])
2928 {
2929 if (t.num_dims >= N_TQ-1)
2930 {
2931 error_line = __LINE__;
2932 saber_stop ();
2933 goto bomb_out;
2934 }
2935
2936 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2937 }
2938 break;
2939 }
2940 else
2941 {
2942 error_line = __LINE__;
2943 saber_stop ();
2944 goto bomb_out;
2945 }
2946
2947
2948 case 's':
2949 if (len == sizeof (".scl")-1
2950 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2951 && arg_was_number
2952 && arg_number < ((symint_t) C_MAX))
2953 {
2954 /* If the symbol is a static or external, we have
2955 already gotten the appropriate type and class, so
2956 make sure we don't override those values. This is
2957 needed because there are some type and classes that
2958 are not in COFF, such as short data, etc. */
2959 if (symbol_type == st_Nil)
2960 {
2961 symbol_type = map_coff_sym_type[arg_number];
2962 storage_class = map_coff_storage [arg_number];
2963 }
2964 break;
2965 }
2966
2967 else if (len == sizeof (".size")-1
2968 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2969 && arg_was_number)
2970 {
2971 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2972
2973 *t_ptr = arg_number;
2974 while (*arg_end_p1 == ',' && arg_was_number)
2975 {
2976 arg_start = arg_end_p1+1;
2977 ch = *arg_start;
2978 while (ch == ' ' || ch == '\t')
2979 ch = *++arg_start;
2980
2981 arg_was_number = 0;
2982 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2983 {
2984 int ch2;
2985 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2986 if (arg_end_p1 != arg_start && (((ch2 = *arg_end_p1) == ';') || ch2 == ','))
2987 arg_was_number++;
2988
2989 if (t_ptr == &temp_array[0])
2990 {
2991 error_line = __LINE__;
2992 saber_stop ();
2993 goto bomb_out;
2994 }
2995
2996 *--t_ptr = arg_number;
2997 }
2998 }
2999
3000 /* Reverse order of sizes. */
3001 while (t_ptr <= &temp_array[ N_TQ-1 ])
3002 {
3003 if (t.num_sizes >= N_TQ-1)
3004 {
3005 error_line = __LINE__;
3006 saber_stop ();
3007 goto bomb_out;
3008 }
3009
3010 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3011 }
3012 break;
3013 }
3014
3015 else
3016 {
3017 error_line = __LINE__;
3018 saber_stop ();
3019 goto bomb_out;
3020 }
3021
3022
3023 case 't':
3024 if (len == sizeof (".type")-1
3025 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3026 && arg_was_number)
3027 {
3028 tq_t *tq_ptr = &t.type_qualifiers[0];
3029
3030 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3031 t.basic_type = map_coff_types [(int) t.orig_type];
3032 for (i = N_TQ-1; i >= 0; i--)
3033 {
3034 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3035 & N_TMASK);
3036
3037 if (dt != (int) DT_NON)
3038 *tq_ptr++ = map_coff_derived_type [dt];
3039 }
3040
3041 /* If this is a function, ignore it, so that we don't get
3042 two entries (one from the .ent, and one for the .def
3043 that precedes it). Save the type information so that
3044 the end block can properly add it after the begin block
3045 index. For MIPS knows what reason, we must strip off
3046 the function type at this point. */
3047 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3048 {
3049 is_function = 1;
3050 tq_ptr[-1] = tq_Nil;
3051 }
3052
3053 break;
3054 }
3055
3056 else if (len == sizeof (".tag")-1
3057 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3058 {
3059 tag_start = arg_start;
3060 tag_end_p1 = arg_end_p1;
3061 break;
3062 }
3063
3064 else
3065 {
3066 error_line = __LINE__;
3067 saber_stop ();
3068 goto bomb_out;
3069 }
3070
3071
3072 case 'v':
3073 if (len == sizeof (".val")-1
3074 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3075 {
3076 if (arg_was_number)
3077 value = arg_number;
3078
3079 /* If the value is not an integer value, it must be the
3080 name of a static or global item. Look up the name in
3081 the original symbol table to pick up the storage
3082 class, symbol type, etc. */
3083 else
3084 {
3085 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3086 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3087
3088 ext_hash_ptr = hash_string (arg_start,
3089 arg_end_p1 - arg_start,
3090 &ext_str_hash[0],
3091 (symint_t *) 0);
3092
3093 if (ext_hash_ptr != (shash_t *) 0
3094 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3095 eptr = ext_hash_ptr->esym_ptr;
3096
3097 orig_hash_ptr = hash_string (arg_start,
3098 arg_end_p1 - arg_start,
3099 &orig_str_hash[0],
3100 (symint_t *) 0);
3101
3102 if ((orig_hash_ptr == (shash_t *) 0
3103 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3104 && eptr == (EXTR *) 0)
3105 {
3106 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3107 (int) (arg_end_p1 - arg_start),
3108 arg_start);
3109 value = 0;
3110 }
3111 else
3112 {
3113 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3114 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3115 ? orig_hash_ptr->sym_ptr
3116 : &eptr->asym;
3117
3118 symbol_type = (st_t) ptr->st;
3119 storage_class = (sc_t) ptr->sc;
3120 value = ptr->value;
3121 }
3122 }
3123 break;
3124 }
3125 else
3126 {
3127 error_line = __LINE__;
3128 saber_stop ();
3129 goto bomb_out;
3130 }
3131 }
3132
3133 /* Set up to find next directive. */
3134 dir_start = arg_end_p1 + 1;
3135 }
3136
3137
3138 if (storage_class == sc_Bits)
3139 {
3140 t.bitfield = 1;
3141 t.extra_sizes = 1;
3142 }
3143 else
3144 t.extra_sizes = 0;
3145
3146 if (t.num_dims > 0)
3147 {
3148 int num_real_sizes = t.num_sizes - t.extra_sizes;
3149 int diff = t.num_dims - num_real_sizes;
3150 int i = t.num_dims - 1;
3151 int j;
3152
3153 if (num_real_sizes != 1 || diff < 0)
3154 {
3155 error_line = __LINE__;
3156 saber_stop ();
3157 goto bomb_out;
3158 }
3159
3160 /* If this is an array, make sure the same number of dimensions
3161 and sizes were passed, creating extra sizes for multiply
3162 dimensioned arrays if not passed. */
3163
3164 if (diff)
3165 {
3166 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3167 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3168
3169 t.num_sizes = i + 1;
3170 for ( i--; i >= 0; i-- )
3171 {
3172 if (t.dimensions[ i+1 ])
3173 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3174 else
3175 t.sizes[ i ] = t.sizes[ i+1 ];
3176 }
3177 }
3178 }
3179
3180 /* Except for enumeration members & begin/ending of scopes, put the
3181 type word in the aux. symbol table. */
3182
3183 if (symbol_type == st_Block || symbol_type == st_End)
3184 indx = 0;
3185
3186 else if (inside_enumeration)
3187 indx = cur_file_ptr->void_type;
3188
3189 else
3190 {
3191 if (t.basic_type == bt_Struct
3192 || t.basic_type == bt_Union
3193 || t.basic_type == bt_Enum)
3194 {
3195 if (tag_start == (char *) 0)
3196 {
3197 error ("no tag specified for %.*s",
3198 (int) (name_end_p1 - name_start),
3199 name_start);
3200 return;
3201 }
3202
3203 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3204 t.basic_type);
3205 }
3206
3207 if (is_function)
3208 {
3209 last_func_type_info = t;
3210 last_func_eptr = eptr;
3211 return;
3212 }
3213
3214 indx = add_aux_sym_tir (&t,
3215 hash_yes,
3216 &cur_file_ptr->thash_head[0]);
3217 }
3218
3219
3220 /* If this is an external or static symbol, update the appropriate
3221 external symbol. */
3222
3223 if (eptr != (EXTR *) 0
3224 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3225 {
3226 eptr->ifd = cur_file_ptr->file_index;
3227 eptr->asym.index = indx;
3228 }
3229
3230
3231 /* Do any last minute adjustments that are necessary. */
3232 switch (symbol_type)
3233 {
3234 default:
3235 break;
3236
3237
3238 /* For the beginning of structs, unions, and enumerations, the
3239 size info needs to be passed in the value field. */
3240
3241 case st_Block:
3242 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3243 {
3244 error_line = __LINE__;
3245 saber_stop ();
3246 goto bomb_out;
3247 }
3248
3249 else
3250 value = t.sizes[0];
3251
3252 inside_enumeration = (t.orig_type == T_ENUM);
3253 break;
3254
3255
3256 /* For the end of structs, unions, and enumerations, omit the
3257 name which is always ".eos". This needs to be done last, so
3258 that any error reporting above gives the correct name. */
3259
3260 case st_End:
3261 name_start = name_end_p1 = 0;
3262 value = inside_enumeration = 0;
3263 break;
3264
3265
3266 /* Members of structures and unions that aren't bitfields, need
3267 to adjust the value from a byte offset to a bit offset.
3268 Members of enumerations do not have the value adjusted, and
3269 can be distinguished by indx == indexNil. For enumerations,
3270 update the maximum enumeration value. */
3271
3272 case st_Member:
3273 if (!t.bitfield && !inside_enumeration)
3274 value *= 8;
3275
3276 break;
3277 }
3278
3279
3280 /* Add the symbol, except for global symbols outside of functions,
3281 for which the external symbol table is fine enough. */
3282
3283 if (eptr == (EXTR *) 0
3284 || eptr->asym.st == (int) st_Nil
3285 || cur_proc_ptr != (PDR *) 0)
3286 {
3287 symint_t isym = add_local_symbol (name_start, name_end_p1,
3288 symbol_type, storage_class,
3289 value,
3290 indx);
3291
3292 /* Deal with struct, union, and enum tags. */
3293 if (symbol_type == st_Block)
3294 {
3295 /* Create or update the tag information. */
3296 tag_t *tag_ptr = get_tag (name_start,
3297 name_end_p1,
3298 isym,
3299 t.basic_type);
3300
3301 /* If there are any forward references, fill in the appropriate
3302 file and symbol indexes. */
3303
3304 symint_t file_index = cur_file_ptr->file_index;
3305 forward_t *f_next = tag_ptr->forward_ref;
3306 forward_t *f_cur;
3307
3308 while (f_next != (forward_t *) 0)
3309 {
3310 f_cur = f_next;
3311 f_next = f_next->next;
3312
3313 f_cur->ifd_ptr->isym = file_index;
3314 f_cur->index_ptr->rndx.index = isym;
3315
3316 free_forward (f_cur);
3317 }
3318
3319 tag_ptr->forward_ref = (forward_t *) 0;
3320 }
3321 }
3322
3323 /* Normal return */
3324 return;
3325
3326 /* Error return, issue message. */
3327 bomb_out:
3328 if (error_line)
3329 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3330 else
3331 error ("compiler error, badly formed #.def");
3332
3333 return;
3334 }
3335
3336 \f
3337 /* Parse .end directives. */
3338
3339 STATIC void
3340 parse_end (const char *start)
3341 {
3342 const char *start_func, *end_func_p1;
3343 int ch;
3344 symint_t value;
3345 FDR *orig_fdr;
3346
3347 if (cur_file_ptr == (efdr_t *) 0)
3348 {
3349 error (".end directive without a preceding .file directive");
3350 return;
3351 }
3352
3353 if (cur_proc_ptr == (PDR *) 0)
3354 {
3355 error (".end directive without a preceding .ent directive");
3356 return;
3357 }
3358
3359 /* Get the function name, skipping whitespace. */
3360 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3361 ;
3362
3363 ch = *start_func;
3364 if (!IS_ASM_IDENT (ch))
3365 {
3366 error (".end directive has no name");
3367 return;
3368 }
3369
3370 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3371 ;
3372
3373
3374 /* Get the value field for creating the end from the original object
3375 file (which we find by locating the procedure start, and using the
3376 pointer to the end+1 block and backing up. The index points to a
3377 two word aux. symbol, whose first word is the index of the end
3378 symbol, and the second word is the type of the function return
3379 value. */
3380
3381 orig_fdr = cur_file_ptr->orig_fdr;
3382 value = 0;
3383 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3384 value = cur_oproc_end->value;
3385
3386 else
3387 error ("cannot find .end block for %.*s",
3388 (int) (end_func_p1 - start_func), start_func);
3389
3390 (void) add_local_symbol (start_func, end_func_p1,
3391 st_End, sc_Text,
3392 value,
3393 (symint_t) 0);
3394
3395 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3396 }
3397
3398 \f
3399 /* Parse .ent directives. */
3400
3401 STATIC void
3402 parse_ent (const char *start)
3403 {
3404 const char *start_func, *end_func_p1;
3405 int ch;
3406
3407 if (cur_file_ptr == (efdr_t *) 0)
3408 {
3409 error (".ent directive without a preceding .file directive");
3410 return;
3411 }
3412
3413 if (cur_proc_ptr != (PDR *) 0)
3414 {
3415 error ("second .ent directive found before .end directive");
3416 return;
3417 }
3418
3419 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3420 ;
3421
3422 ch = *start_func;
3423 if (!IS_ASM_IDENT (ch))
3424 {
3425 error (".ent directive has no name");
3426 return;
3427 }
3428
3429 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3430 ;
3431
3432 (void) add_procedure (start_func, end_func_p1);
3433 }
3434
3435 \f
3436 /* Parse .file directives. */
3437
3438 STATIC void
3439 parse_file (const char *start)
3440 {
3441 char *p;
3442 char *start_name, *end_name_p1;
3443
3444 (void) strtol (start, &p, 0);
3445 if (start == p
3446 || (start_name = strchr (p, '"')) == (char *) 0
3447 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3448 {
3449 error ("invalid .file directive");
3450 return;
3451 }
3452
3453 if (cur_proc_ptr != (PDR *) 0)
3454 {
3455 error ("no way to handle .file within .ent/.end section");
3456 return;
3457 }
3458
3459 add_file (start_name, end_name_p1);
3460 }
3461
3462 \f
3463 /* Make sure the @stabs symbol is emitted. */
3464
3465 static void
3466 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3467 {
3468 if (!stabs_seen)
3469 {
3470 /* Add a dummy @stabs symbol. */
3471 stabs_seen = 1;
3472 (void) add_local_symbol (stabs_symbol,
3473 stabs_symbol + sizeof (stabs_symbol),
3474 (st_t) stNil, (sc_t) scInfo, -1,
3475 MIPS_MARK_STAB (0));
3476
3477 }
3478 }
3479
3480 \f
3481 /* Parse .stabs directives.
3482
3483 .stabs directives have five fields:
3484 "string" a string, encoding the type information.
3485 code a numeric code, defined in <stab.h>
3486 0 a zero
3487 0 a zero or line number
3488 value a numeric value or an address.
3489
3490 If the value is relocatable, we transform this into:
3491 iss points as an index into string space
3492 value value from lookup of the name
3493 st st from lookup of the name
3494 sc sc from lookup of the name
3495 index code|CODE_MASK
3496
3497 If the value is not relocatable, we transform this into:
3498 iss points as an index into string space
3499 value value
3500 st st_Nil
3501 sc sc_Nil
3502 index code|CODE_MASK
3503
3504 .stabn directives have four fields (string is null):
3505 code a numeric code, defined in <stab.h>
3506 0 a zero
3507 0 a zero or a line number
3508 value a numeric value or an address. */
3509
3510 STATIC void
3511 parse_stabs_common (const char *string_start, /* start of string or NULL */
3512 const char *string_end, /* end+1 of string or NULL */
3513 const char *rest) /* rest of the directive. */
3514 {
3515 efdr_t *save_file_ptr = cur_file_ptr;
3516 symint_t code;
3517 symint_t value;
3518 char *p;
3519 st_t st;
3520 sc_t sc;
3521 int ch;
3522
3523 if (stabs_seen == 0)
3524 mark_stabs ("");
3525
3526 /* Read code from stabs. */
3527 if (!ISDIGIT (*rest))
3528 {
3529 error ("invalid .stabs/.stabn directive, code is non-numeric");
3530 return;
3531 }
3532
3533 code = strtol (rest, &p, 0);
3534
3535 /* Line number stabs are handled differently, since they have two values,
3536 the line number and the address of the label. We use the index field
3537 (aka code) to hold the line number, and the value field to hold the
3538 address. The symbol type is st_Label, which should be different from
3539 the other stabs, so that gdb can recognize it. */
3540
3541 if (code == (int) N_SLINE)
3542 {
3543 SYMR *sym_ptr, dummy_symr;
3544 shash_t *shash_ptr;
3545
3546 /* Skip ,0, */
3547 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3548 {
3549 error ("invalid line number .stabs/.stabn directive");
3550 return;
3551 }
3552
3553 code = strtol (p+3, &p, 0);
3554 ch = *++p;
3555 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3556 {
3557 error ("invalid line number .stabs/.stabn directive");
3558 return;
3559 }
3560
3561 dummy_symr.index = code;
3562 if (dummy_symr.index != code)
3563 {
3564 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3565 code);
3566
3567 return;
3568 }
3569
3570 shash_ptr = hash_string (p,
3571 strlen (p) - 1,
3572 &orig_str_hash[0],
3573 (symint_t *) 0);
3574
3575 if (shash_ptr == (shash_t *) 0
3576 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3577 {
3578 error ("invalid .stabs/.stabn directive, value not found");
3579 return;
3580 }
3581
3582 if ((st_t) sym_ptr->st != st_Label)
3583 {
3584 error ("invalid line number .stabs/.stabn directive");
3585 return;
3586 }
3587
3588 st = st_Label;
3589 sc = (sc_t) sym_ptr->sc;
3590 value = sym_ptr->value;
3591 }
3592 else
3593 {
3594 /* Skip ,<num>,<num>, */
3595 if (*p++ != ',')
3596 goto failure;
3597 for (; ISDIGIT (*p); p++)
3598 ;
3599 if (*p++ != ',')
3600 goto failure;
3601 for (; ISDIGIT (*p); p++)
3602 ;
3603 if (*p++ != ',')
3604 goto failure;
3605 ch = *p;
3606 if (!IS_ASM_IDENT (ch) && ch != '-')
3607 {
3608 failure:
3609 error ("invalid .stabs/.stabn directive, bad character");
3610 return;
3611 }
3612
3613 if (ISDIGIT (ch) || ch == '-')
3614 {
3615 st = st_Nil;
3616 sc = sc_Nil;
3617 value = strtol (p, &p, 0);
3618 if (*p != '\n')
3619 {
3620 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3621 return;
3622 }
3623 }
3624 else if (!IS_ASM_IDENT (ch))
3625 {
3626 error ("invalid .stabs/.stabn directive, bad character");
3627 return;
3628 }
3629 else
3630 {
3631 SYMR *sym_ptr;
3632 shash_t *shash_ptr;
3633 const char *start, *end_p1;
3634
3635 start = p;
3636 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3637 {
3638 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3639 end_p1 = start + strlen (start) - 1;
3640 }
3641
3642 shash_ptr = hash_string (start,
3643 end_p1 - start,
3644 &orig_str_hash[0],
3645 (symint_t *) 0);
3646
3647 if (shash_ptr == (shash_t *) 0
3648 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3649 {
3650 shash_ptr = hash_string (start,
3651 end_p1 - start,
3652 &ext_str_hash[0],
3653 (symint_t *) 0);
3654
3655 if (shash_ptr == (shash_t *) 0
3656 || shash_ptr->esym_ptr == (EXTR *) 0)
3657 {
3658 error ("invalid .stabs/.stabn directive, value not found");
3659 return;
3660 }
3661 else
3662 sym_ptr = &(shash_ptr->esym_ptr->asym);
3663 }
3664
3665 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3666 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3667 {
3668 sc = (sc_t) scNil;
3669 st = (st_t) stNil;
3670 }
3671 else
3672 {
3673 sc = (sc_t) sym_ptr->sc;
3674 st = (st_t) sym_ptr->st;
3675 }
3676 value = sym_ptr->value;
3677
3678 ch = *end_p1++;
3679 if (ch != '\n')
3680 {
3681 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3682 || ((ch != '+') && (ch != '-')))
3683 {
3684 error ("invalid .stabs/.stabn directive, badly formed value");
3685 return;
3686 }
3687 if (ch == '+')
3688 value += strtol (end_p1, &p, 0);
3689 else if (ch == '-')
3690 value -= strtol (end_p1, &p, 0);
3691
3692 if (*p != '\n')
3693 {
3694 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3695 return;
3696 }
3697 }
3698 }
3699 code = MIPS_MARK_STAB (code);
3700 }
3701
3702 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3703 /* Restore normal file type. */
3704 cur_file_ptr = save_file_ptr;
3705 }
3706
3707
3708 STATIC void
3709 parse_stabs (const char *start)
3710 {
3711 const char *end = strchr (start+1, '"');
3712
3713 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3714 {
3715 error ("invalid .stabs directive, no string");
3716 return;
3717 }
3718
3719 parse_stabs_common (start+1, end, end+2);
3720 }
3721
3722
3723 STATIC void
3724 parse_stabn (const char *start)
3725 {
3726 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3727 }
3728
3729 \f
3730 /* Parse the input file, and write the lines to the output file
3731 if needed. */
3732
3733 STATIC void
3734 parse_input (void)
3735 {
3736 char *p;
3737 Size_t i;
3738 thead_t *ptag_head;
3739 tag_t *ptag;
3740 tag_t *ptag_next;
3741
3742 if (debug)
3743 fprintf (stderr, "\tinput\n");
3744
3745 /* Add a dummy scope block around the entire compilation unit for
3746 structures defined outside of blocks. */
3747 ptag_head = allocate_thead ();
3748 ptag_head->first_tag = 0;
3749 ptag_head->prev = cur_tag_head;
3750 cur_tag_head = ptag_head;
3751
3752 while ((p = read_line ()) != (char *) 0)
3753 {
3754 /* Skip leading blanks. */
3755 while (ISSPACE ((unsigned char)*p))
3756 p++;
3757
3758 /* See if it's a directive we handle. If so, dispatch handler. */
3759 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3760 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3761 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3762 {
3763 p += pseudo_ops[i].len; /* skip to first argument */
3764 while (ISSPACE ((unsigned char)*p))
3765 p++;
3766
3767 (*pseudo_ops[i].func)( p );
3768 break;
3769 }
3770 }
3771
3772 /* Process any tags at global level. */
3773 ptag_head = cur_tag_head;
3774 cur_tag_head = ptag_head->prev;
3775
3776 for (ptag = ptag_head->first_tag;
3777 ptag != (tag_t *) 0;
3778 ptag = ptag_next)
3779 {
3780 if (ptag->forward_ref != (forward_t *) 0)
3781 add_unknown_tag (ptag);
3782
3783 ptag_next = ptag->same_block;
3784 ptag->hash_ptr->tag_ptr = ptag->same_name;
3785 free_tag (ptag);
3786 }
3787
3788 free_thead (ptag_head);
3789
3790 }
3791
3792 \f
3793 /* Update the global headers with the final offsets in preparation
3794 to write out the .T file. */
3795
3796 STATIC void
3797 update_headers (void)
3798 {
3799 symint_t i;
3800 efdr_t *file_ptr;
3801
3802 /* Set up the symbolic header. */
3803 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3804 symbolic_header.magic = orig_sym_hdr.magic;
3805 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3806
3807 /* Set up global counts. */
3808 symbolic_header.issExtMax = ext_strings.num_allocated;
3809 symbolic_header.idnMax = dense_num.num_allocated;
3810 symbolic_header.ifdMax = file_desc.num_allocated;
3811 symbolic_header.iextMax = ext_symbols.num_allocated;
3812 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3813 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3814 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3815 symbolic_header.crfd = orig_sym_hdr.crfd;
3816
3817
3818 /* Loop through each file, figuring out how many local syms,
3819 line numbers, etc. there are. Also, put out end symbol
3820 for the filename. */
3821
3822 for (file_ptr = first_file;
3823 file_ptr != (efdr_t *) 0;
3824 file_ptr = file_ptr->next_file)
3825 {
3826 SYMR *sym_start;
3827 SYMR *sym;
3828 SYMR *sym_end_p1;
3829 FDR *fd_ptr = file_ptr->orig_fdr;
3830
3831 cur_file_ptr = file_ptr;
3832
3833 /* Copy st_Static symbols from the original local symbol table if
3834 they did not get added to the new local symbol table.
3835 This happens with stabs-in-ecoff or if the source file is
3836 compiled without debugging. */
3837 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3838 sym_end_p1 = sym_start + fd_ptr->csym;
3839 for (sym = sym_start; sym < sym_end_p1; sym++)
3840 {
3841 if ((st_t) sym->st == st_Static)
3842 {
3843 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3844 Size_t len = strlen (str);
3845 shash_t *hash_ptr;
3846
3847 /* Ignore internal labels. */
3848 if (str[0] == '$' && str[1] == 'L')
3849 continue;
3850 hash_ptr = hash_string (str,
3851 (Ptrdiff_t) len,
3852 &file_ptr->shash_head[0],
3853 (symint_t *) 0);
3854 if (hash_ptr == (shash_t *) 0)
3855 {
3856 (void) add_local_symbol (str, str + len,
3857 (st_t) sym->st, (sc_t) sym->sc,
3858 (symint_t) sym->value,
3859 (symint_t) indexNil);
3860 }
3861 }
3862 }
3863 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3864 st_End, sc_Text,
3865 (symint_t) 0,
3866 (symint_t) 0);
3867
3868 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3869 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3870 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3871
3872 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3873 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3874 symbolic_header.isymMax += file_ptr->fdr.csym;
3875
3876 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3877 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3878 symbolic_header.iauxMax += file_ptr->fdr.caux;
3879
3880 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3881 file_ptr->fdr.issBase = symbolic_header.issMax;
3882 symbolic_header.issMax += file_ptr->fdr.cbSs;
3883 }
3884
3885 #ifndef ALIGN_SYMTABLE_OFFSET
3886 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3887 #endif
3888
3889 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3890 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3891 if (i > 0)
3892 {
3893 symbolic_header.cbLineOffset = file_offset;
3894 file_offset += i;
3895 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3896 }
3897
3898 i = symbolic_header.ioptMax; /* optimization symbols */
3899 if (((long) i) > 0)
3900 {
3901 symbolic_header.cbOptOffset = file_offset;
3902 file_offset += i * sizeof (OPTR);
3903 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3904 }
3905
3906 i = symbolic_header.idnMax; /* dense numbers */
3907 if (i > 0)
3908 {
3909 symbolic_header.cbDnOffset = file_offset;
3910 file_offset += i * sizeof (DNR);
3911 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3912 }
3913
3914 i = symbolic_header.ipdMax; /* procedure tables */
3915 if (i > 0)
3916 {
3917 symbolic_header.cbPdOffset = file_offset;
3918 file_offset += i * sizeof (PDR);
3919 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3920 }
3921
3922 i = symbolic_header.isymMax; /* local symbols */
3923 if (i > 0)
3924 {
3925 symbolic_header.cbSymOffset = file_offset;
3926 file_offset += i * sizeof (SYMR);
3927 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3928 }
3929
3930 i = symbolic_header.iauxMax; /* aux syms. */
3931 if (i > 0)
3932 {
3933 symbolic_header.cbAuxOffset = file_offset;
3934 file_offset += i * sizeof (TIR);
3935 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3936 }
3937
3938 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3939 if (i > 0)
3940 {
3941 symbolic_header.cbSsOffset = file_offset;
3942 file_offset += i;
3943 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3944 }
3945
3946 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3947 if (i > 0)
3948 {
3949 symbolic_header.cbSsExtOffset = file_offset;
3950 file_offset += i;
3951 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3952 }
3953
3954 i = symbolic_header.ifdMax; /* file tables */
3955 if (i > 0)
3956 {
3957 symbolic_header.cbFdOffset = file_offset;
3958 file_offset += i * sizeof (FDR);
3959 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3960 }
3961
3962 i = symbolic_header.crfd; /* relative file descriptors */
3963 if (i > 0)
3964 {
3965 symbolic_header.cbRfdOffset = file_offset;
3966 file_offset += i * sizeof (symint_t);
3967 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3968 }
3969
3970 i = symbolic_header.iextMax; /* external symbols */
3971 if (i > 0)
3972 {
3973 symbolic_header.cbExtOffset = file_offset;
3974 file_offset += i * sizeof (EXTR);
3975 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3976 }
3977 }
3978
3979 \f
3980 /* Write out a varray at a given location. */
3981
3982 STATIC void
3983 write_varray (varray_t *vp, /* virtual array */
3984 off_t offset, /* offset to write varray to */
3985 const char *str) /* string to print out when tracing */
3986 {
3987 int num_write, sys_write;
3988 vlinks_t *ptr;
3989
3990 if (vp->num_allocated == 0)
3991 return;
3992
3993 if (debug)
3994 fprintf (stderr, "\twarray\tvp = " HOST_PTR_PRINTF
3995 ", offset = %7lu, size = %7lu, %s\n",
3996 (void *) vp, (unsigned long) offset,
3997 vp->num_allocated * vp->object_size, str);
3998
3999 if (file_offset != (unsigned long) offset
4000 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4001 pfatal_with_name (object_name);
4002
4003 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4004 {
4005 num_write = (ptr->next == (vlinks_t *) 0)
4006 ? vp->objects_last_page * vp->object_size
4007 : vp->objects_per_page * vp->object_size;
4008
4009 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4010 if (sys_write <= 0)
4011 pfatal_with_name (object_name);
4012
4013 else if (sys_write != num_write)
4014 fatal ("wrote %d bytes to %s, system returned %d",
4015 num_write,
4016 object_name,
4017 sys_write);
4018
4019 file_offset += num_write;
4020 }
4021 }
4022
4023 \f
4024 /* Write out the symbol table in the object file. */
4025
4026 STATIC void
4027 write_object (void)
4028 {
4029 int sys_write;
4030 efdr_t *file_ptr;
4031 off_t offset;
4032
4033 if (debug)
4034 fprintf (stderr, "\n\twrite\tvp = " HOST_PTR_PRINTF
4035 ", offset = %7u, size = %7lu, %s\n",
4036 (void *) &symbolic_header, 0,
4037 (unsigned long) sizeof (symbolic_header), "symbolic header");
4038
4039 sys_write = fwrite (&symbolic_header,
4040 1,
4041 sizeof (symbolic_header),
4042 object_stream);
4043
4044 if (sys_write < 0)
4045 pfatal_with_name (object_name);
4046
4047 else if (sys_write != sizeof (symbolic_header))
4048 fatal ("wrote %d bytes to %s, system returned %d",
4049 (int) sizeof (symbolic_header),
4050 object_name,
4051 sys_write);
4052
4053
4054 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4055
4056 if (symbolic_header.cbLine > 0) /* line numbers */
4057 {
4058 long sys_write;
4059
4060 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4061 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4062 pfatal_with_name (object_name);
4063
4064 if (debug)
4065 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4066 ", offset = %7lu, size = %7lu, %s\n",
4067 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4068 (long) symbolic_header.cbLine, "Line numbers");
4069
4070 sys_write = fwrite (orig_linenum,
4071 1,
4072 symbolic_header.cbLine,
4073 object_stream);
4074
4075 if (sys_write <= 0)
4076 pfatal_with_name (object_name);
4077
4078 else if (sys_write != symbolic_header.cbLine)
4079 fatal ("wrote %ld bytes to %s, system returned %ld",
4080 (long) symbolic_header.cbLine,
4081 object_name,
4082 sys_write);
4083
4084 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4085 }
4086
4087 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4088 {
4089 long sys_write;
4090 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4091
4092 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4093 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4094 pfatal_with_name (object_name);
4095
4096 if (debug)
4097 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4098 ", offset = %7lu, size = %7lu, %s\n",
4099 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4100 num_write, "Optimizer symbols");
4101
4102 sys_write = fwrite (orig_opt_syms,
4103 1,
4104 num_write,
4105 object_stream);
4106
4107 if (sys_write <= 0)
4108 pfatal_with_name (object_name);
4109
4110 else if (sys_write != num_write)
4111 fatal ("wrote %ld bytes to %s, system returned %ld",
4112 num_write,
4113 object_name,
4114 sys_write);
4115
4116 file_offset = symbolic_header.cbOptOffset + num_write;
4117 }
4118
4119 if (symbolic_header.idnMax > 0) /* dense numbers */
4120 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4121
4122 if (symbolic_header.ipdMax > 0) /* procedure tables */
4123 {
4124 offset = symbolic_header.cbPdOffset;
4125 for (file_ptr = first_file;
4126 file_ptr != (efdr_t *) 0;
4127 file_ptr = file_ptr->next_file)
4128 {
4129 write_varray (&file_ptr->procs, offset, "Procedure tables");
4130 offset = file_offset;
4131 }
4132 }
4133
4134 if (symbolic_header.isymMax > 0) /* local symbols */
4135 {
4136 offset = symbolic_header.cbSymOffset;
4137 for (file_ptr = first_file;
4138 file_ptr != (efdr_t *) 0;
4139 file_ptr = file_ptr->next_file)
4140 {
4141 write_varray (&file_ptr->symbols, offset, "Local symbols");
4142 offset = file_offset;
4143 }
4144 }
4145
4146 if (symbolic_header.iauxMax > 0) /* aux symbols */
4147 {
4148 offset = symbolic_header.cbAuxOffset;
4149 for (file_ptr = first_file;
4150 file_ptr != (efdr_t *) 0;
4151 file_ptr = file_ptr->next_file)
4152 {
4153 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4154 offset = file_offset;
4155 }
4156 }
4157
4158 if (symbolic_header.issMax > 0) /* local strings */
4159 {
4160 offset = symbolic_header.cbSsOffset;
4161 for (file_ptr = first_file;
4162 file_ptr != (efdr_t *) 0;
4163 file_ptr = file_ptr->next_file)
4164 {
4165 write_varray (&file_ptr->strings, offset, "Local strings");
4166 offset = file_offset;
4167 }
4168 }
4169
4170 if (symbolic_header.issExtMax > 0) /* external strings */
4171 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4172
4173 if (symbolic_header.ifdMax > 0) /* file tables */
4174 {
4175 offset = symbolic_header.cbFdOffset;
4176 if (file_offset != (unsigned long) offset
4177 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4178 pfatal_with_name (object_name);
4179
4180 file_offset = offset;
4181 for (file_ptr = first_file;
4182 file_ptr != (efdr_t *) 0;
4183 file_ptr = file_ptr->next_file)
4184 {
4185 if (debug)
4186 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4187 ", offset = %7lu, size = %7lu, %s\n",
4188 (void *) &file_ptr->fdr, file_offset,
4189 (unsigned long) sizeof (FDR), "File header");
4190
4191 sys_write = fwrite (&file_ptr->fdr,
4192 1,
4193 sizeof (FDR),
4194 object_stream);
4195
4196 if (sys_write < 0)
4197 pfatal_with_name (object_name);
4198
4199 else if (sys_write != sizeof (FDR))
4200 fatal ("wrote %d bytes to %s, system returned %d",
4201 (int) sizeof (FDR),
4202 object_name,
4203 sys_write);
4204
4205 file_offset = offset += sizeof (FDR);
4206 }
4207 }
4208
4209 if (symbolic_header.crfd > 0) /* relative file descriptors */
4210 {
4211 long sys_write;
4212 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4213
4214 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4215 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4216 pfatal_with_name (object_name);
4217
4218 if (debug)
4219 fprintf (stderr, "\twrite\tvp = " HOST_PTR_PRINTF
4220 ", offset = %7lu, size = %7lu, %s\n",
4221 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4222 num_write, "Relative file descriptors");
4223
4224 sys_write = fwrite (orig_rfds,
4225 1,
4226 num_write,
4227 object_stream);
4228
4229 if (sys_write <= 0)
4230 pfatal_with_name (object_name);
4231
4232 else if (sys_write != (long) num_write)
4233 fatal ("wrote %lu bytes to %s, system returned %ld",
4234 num_write,
4235 object_name,
4236 sys_write);
4237
4238 file_offset = symbolic_header.cbRfdOffset + num_write;
4239 }
4240
4241 if (symbolic_header.issExtMax > 0) /* external symbols */
4242 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4243
4244 if (fclose (object_stream) != 0)
4245 pfatal_with_name (object_name);
4246 }
4247
4248 \f
4249 /* Read some bytes at a specified location, and return a pointer. */
4250
4251 STATIC page_t *
4252 read_seek (Size_t size, /* # bytes to read */
4253 off_t offset, /* offset to read at */
4254 const char *str) /* name for tracing */
4255 {
4256 page_t *ptr;
4257 long sys_read = 0;
4258
4259 if (size == 0) /* nothing to read */
4260 return (page_t *) 0;
4261
4262 if (debug)
4263 fprintf (stderr,
4264 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4265 (unsigned long) size, (unsigned long) offset, file_offset, str);
4266
4267 #ifndef MALLOC_CHECK
4268 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4269 #else
4270 ptr = xcalloc (1, size);
4271 #endif
4272
4273 /* If we need to seek, and the distance is nearby, just do some reads,
4274 to speed things up. */
4275 if (file_offset != (unsigned long) offset)
4276 {
4277 symint_t difference = offset - file_offset;
4278
4279 if (difference < 8)
4280 {
4281 char small_buffer[8];
4282
4283 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4284 if (sys_read <= 0)
4285 pfatal_with_name (obj_in_name);
4286
4287 if ((symint_t) sys_read != difference)
4288 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4289 (unsigned long) size,
4290 obj_in_name,
4291 sys_read);
4292 }
4293 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4294 pfatal_with_name (obj_in_name);
4295 }
4296
4297 sys_read = fread (ptr, 1, size, obj_in_stream);
4298 if (sys_read <= 0)
4299 pfatal_with_name (obj_in_name);
4300
4301 if (sys_read != (long) size)
4302 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4303 (unsigned long) size,
4304 obj_in_name,
4305 sys_read);
4306
4307 file_offset = offset + size;
4308
4309 if (file_offset > max_file_offset)
4310 max_file_offset = file_offset;
4311
4312 return ptr;
4313 }
4314
4315 \f
4316 /* Read the existing object file (and copy to the output object file
4317 if it is different from the input object file), and remove the old
4318 symbol table. */
4319
4320 STATIC void
4321 copy_object (void)
4322 {
4323 char buffer[ PAGE_SIZE ];
4324 int sys_read;
4325 int remaining;
4326 int num_write;
4327 int sys_write;
4328 int fd, es;
4329 int delete_ifd = 0;
4330 int *remap_file_number;
4331 struct stat stat_buf;
4332
4333 if (debug)
4334 fprintf (stderr, "\tcopy\n");
4335
4336 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4337 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4338 pfatal_with_name (obj_in_name);
4339
4340 sys_read = fread (&orig_file_header,
4341 1,
4342 sizeof (struct filehdr),
4343 obj_in_stream);
4344
4345 if (sys_read < 0)
4346 pfatal_with_name (obj_in_name);
4347
4348 else if (sys_read == 0 && feof (obj_in_stream))
4349 return; /* create a .T file sans file header */
4350
4351 else if (sys_read < (int) sizeof (struct filehdr))
4352 fatal ("wanted to read %d bytes from %s, system returned %d",
4353 (int) sizeof (struct filehdr),
4354 obj_in_name,
4355 sys_read);
4356
4357
4358 if (orig_file_header.f_nsyms != sizeof (HDRR))
4359 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4360 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4361
4362
4363 /* Read in the current symbolic header. */
4364 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4365 pfatal_with_name (input_name);
4366
4367 sys_read = fread (&orig_sym_hdr,
4368 1,
4369 sizeof (orig_sym_hdr),
4370 obj_in_stream);
4371
4372 if (sys_read < 0)
4373 pfatal_with_name (object_name);
4374
4375 else if (sys_read < (int) sizeof (struct filehdr))
4376 fatal ("wanted to read %d bytes from %s, system returned %d",
4377 (int) sizeof (struct filehdr),
4378 obj_in_name,
4379 sys_read);
4380
4381
4382 /* Read in each of the sections if they exist in the object file.
4383 We read things in the order the mips assembler creates the
4384 sections, so in theory no extra seeks are done.
4385
4386 For simplicity sake, round each read up to a page boundary,
4387 we may want to revisit this later.... */
4388
4389 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4390
4391 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4392 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4393 orig_sym_hdr.cbLineOffset,
4394 "Line numbers");
4395
4396 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4397 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4398 orig_sym_hdr.cbPdOffset,
4399 "Procedure tables");
4400
4401 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4402 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4403 orig_sym_hdr.cbSymOffset,
4404 "Local symbols");
4405
4406 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4407 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4408 orig_sym_hdr.cbAuxOffset,
4409 "Aux. symbols");
4410
4411 if (orig_sym_hdr.issMax > 0) /* local strings */
4412 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4413 orig_sym_hdr.cbSsOffset,
4414 "Local strings");
4415
4416 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4417 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4418 orig_sym_hdr.cbSsExtOffset,
4419 "External strings");
4420
4421 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4422 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4423 orig_sym_hdr.cbFdOffset,
4424 "File tables");
4425
4426 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4427 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4428 orig_sym_hdr.cbRfdOffset,
4429 "Relative file descriptors");
4430
4431 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4432 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4433 orig_sym_hdr.cbExtOffset,
4434 "External symbols");
4435
4436 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4437 {
4438 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4439 orig_sym_hdr.cbDnOffset,
4440 "Dense numbers");
4441
4442 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4443 }
4444
4445 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4446 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4447 orig_sym_hdr.cbOptOffset,
4448 "Optimizer symbols");
4449
4450
4451
4452 /* The symbol table should be last. */
4453 if (max_file_offset != (unsigned long) stat_buf.st_size)
4454 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4455 max_file_offset,
4456 (long) stat_buf.st_size);
4457
4458
4459 /* If the first original file descriptor is a dummy which the assembler
4460 put out, but there are no symbols in it, skip it now. */
4461 if (orig_sym_hdr.ifdMax > 1
4462 && orig_files->csym == 2
4463 && orig_files->caux == 0)
4464 {
4465 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4466 char *suffix = strrchr (filename, '.');
4467
4468 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4469 delete_ifd = 1;
4470 }
4471
4472
4473 /* Create array to map original file numbers to the new file numbers
4474 (in case there are duplicate filenames, we collapse them into one
4475 file section, the MIPS assembler may or may not collapse them). */
4476
4477 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4478
4479 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4480 {
4481 FDR *fd_ptr = ORIG_FILES (fd);
4482 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4483
4484 /* file support itself. */
4485 add_file (filename, filename + strlen (filename));
4486 remap_file_number[fd] = cur_file_ptr->file_index;
4487 }
4488
4489 if (delete_ifd > 0) /* just in case */
4490 remap_file_number[0] = remap_file_number[1];
4491
4492
4493 /* Loop, adding each of the external symbols. These must be in
4494 order or otherwise we would have to change the relocation
4495 entries. We don't just call add_bytes, because we need to have
4496 the names put into the external hash table. We set the type to
4497 'void' for now, and parse_def will fill in the correct type if it
4498 is in the symbol table. We must add the external symbols before
4499 the locals, since the locals do lookups against the externals. */
4500
4501 if (debug)
4502 fprintf (stderr, "\tehash\n");
4503
4504 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4505 {
4506 EXTR *eptr = orig_ext_syms + es;
4507 int ifd = eptr->ifd;
4508
4509 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4510 ? remap_file_number[ ifd ] : ifd );
4511 }
4512
4513
4514 /* For each of the files in the object file, copy the symbols, and such
4515 into the varrays for the new object file. */
4516
4517 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4518 {
4519 FDR *fd_ptr = ORIG_FILES (fd);
4520 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4521 SYMR *sym_start;
4522 SYMR *sym;
4523 SYMR *sym_end_p1;
4524 PDR *proc_start;
4525 PDR *proc;
4526 PDR *proc_end_p1;
4527
4528 /* file support itself. */
4529 add_file (filename, filename + strlen (filename));
4530 cur_file_ptr->orig_fdr = fd_ptr;
4531
4532 /* Copy stuff that's just passed through (such as line #'s) */
4533 cur_file_ptr->fdr.adr = fd_ptr->adr;
4534 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4535 cur_file_ptr->fdr.cline = fd_ptr->cline;
4536 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4537 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4538 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4539 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4540 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4541 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4542 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4543
4544 if (debug)
4545 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4546
4547 /* For each of the static and global symbols defined, add them
4548 to the hash table of original symbols, so we can look up
4549 their values. */
4550
4551 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4552 sym_end_p1 = sym_start + fd_ptr->csym;
4553 for (sym = sym_start; sym < sym_end_p1; sym++)
4554 {
4555 switch ((st_t) sym->st)
4556 {
4557 default:
4558 break;
4559
4560 case st_Global:
4561 case st_Static:
4562 case st_Label:
4563 case st_Proc:
4564 case st_StaticProc:
4565 {
4566 auto symint_t hash_index;
4567 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4568 Size_t len = strlen (str);
4569 shash_t *shash_ptr = hash_string (str,
4570 (Ptrdiff_t) len,
4571 &orig_str_hash[0],
4572 &hash_index);
4573
4574 if (shash_ptr != (shash_t *) 0)
4575 error ("internal error, %s is already in original symbol table", str);
4576
4577 else
4578 {
4579 shash_ptr = allocate_shash ();
4580 shash_ptr->next = orig_str_hash[hash_index];
4581 orig_str_hash[hash_index] = shash_ptr;
4582
4583 shash_ptr->len = len;
4584 shash_ptr->indx = indexNil;
4585 shash_ptr->string = str;
4586 shash_ptr->sym_ptr = sym;
4587 }
4588 }
4589 break;
4590
4591 case st_End:
4592 if ((sc_t) sym->sc == sc_Text)
4593 {
4594 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4595
4596 if (*str != '\0')
4597 {
4598 Size_t len = strlen (str);
4599 shash_t *shash_ptr = hash_string (str,
4600 (Ptrdiff_t) len,
4601 &orig_str_hash[0],
4602 (symint_t *) 0);
4603
4604 if (shash_ptr != (shash_t *) 0)
4605 shash_ptr->end_ptr = sym;
4606 }
4607 }
4608 break;
4609
4610 }
4611 }
4612
4613 if (debug)
4614 {
4615 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4616 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4617 }
4618
4619 /* Go through each of the procedures in this file, and add the
4620 procedure pointer to the hash entry for the given name. */
4621
4622 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4623 proc_end_p1 = proc_start + fd_ptr->cpd;
4624 for (proc = proc_start; proc < proc_end_p1; proc++)
4625 {
4626 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4627 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4628 Size_t len = strlen (str);
4629 shash_t *shash_ptr = hash_string (str,
4630 (Ptrdiff_t) len,
4631 &orig_str_hash[0],
4632 (symint_t *) 0);
4633
4634 if (shash_ptr == (shash_t *) 0)
4635 error ("internal error, function %s is not in original symbol table", str);
4636
4637 else
4638 shash_ptr->proc_ptr = proc;
4639 }
4640
4641 if (debug)
4642 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4643
4644 }
4645 cur_file_ptr = first_file;
4646
4647
4648 /* Copy all of the object file up to the symbol table. Originally
4649 we were going to use ftruncate, but that doesn't seem to work
4650 on Ultrix 3.1.... */
4651
4652 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4653 pfatal_with_name (obj_in_name);
4654
4655 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4656 pfatal_with_name (object_name);
4657
4658 for (remaining = orig_file_header.f_symptr;
4659 remaining > 0;
4660 remaining -= num_write)
4661 {
4662 num_write
4663 = (remaining <= (int) sizeof (buffer))
4664 ? remaining : (int) sizeof (buffer);
4665 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4666 if (sys_read <= 0)
4667 pfatal_with_name (obj_in_name);
4668
4669 else if (sys_read != num_write)
4670 fatal ("wanted to read %d bytes from %s, system returned %d",
4671 num_write,
4672 obj_in_name,
4673 sys_read);
4674
4675 sys_write = fwrite (buffer, 1, num_write, object_stream);
4676 if (sys_write <= 0)
4677 pfatal_with_name (object_name);
4678
4679 else if (sys_write != num_write)
4680 fatal ("wrote %d bytes to %s, system returned %d",
4681 num_write,
4682 object_name,
4683 sys_write);
4684 }
4685 }
4686
4687 \f
4688 /* Ye olde main program. */
4689
4690 extern int main (int, char **);
4691
4692 int
4693 main (int argc, char **argv)
4694 {
4695 int iflag = 0;
4696 char *p = strrchr (argv[0], '/');
4697 char *num_end;
4698 int option;
4699 int i;
4700
4701 progname = (p != 0) ? p+1 : argv[0];
4702
4703 (void) signal (SIGSEGV, catch_signal);
4704 (void) signal (SIGBUS, catch_signal);
4705 (void) signal (SIGABRT, catch_signal);
4706
4707 #if !defined(__SABER__) && !defined(lint)
4708 if (sizeof (efdr_t) > PAGE_USIZE)
4709 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4710 (int) sizeof (efdr_t),
4711 (int) PAGE_USIZE);
4712
4713 if (sizeof (page_t) != PAGE_USIZE)
4714 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4715 (int) sizeof (page_t),
4716 (int) PAGE_USIZE);
4717
4718 #endif
4719
4720 alloc_counts[ alloc_type_none ].alloc_name = "none";
4721 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4722 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4723 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4724 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4725 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4726 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4727 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4728 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4729
4730 int_type_info = type_info_init;
4731 int_type_info.basic_type = bt_Int;
4732
4733 void_type_info = type_info_init;
4734 void_type_info.basic_type = bt_Void;
4735
4736 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4737 switch (option)
4738 {
4739 default:
4740 had_errors++;
4741 break;
4742
4743 case 'd':
4744 debug = strtol (optarg, &num_end, 0);
4745 if ((unsigned) debug > 4 || num_end == optarg)
4746 had_errors++;
4747
4748 break;
4749
4750 case 'I':
4751 if (rename_output || obj_in_name != (char *) 0)
4752 had_errors++;
4753 else
4754 rename_output = 1;
4755
4756 /* Fall through to 'i' case. */
4757
4758 case 'i':
4759 if (obj_in_name == (char *) 0)
4760 {
4761 obj_in_name = optarg;
4762 iflag++;
4763 }
4764 else
4765 had_errors++;
4766 break;
4767
4768 case 'o':
4769 if (object_name == (char *) 0)
4770 object_name = optarg;
4771 else
4772 had_errors++;
4773 break;
4774
4775 case 'v':
4776 verbose++;
4777 break;
4778
4779 case 'V':
4780 version++;
4781 break;
4782 }
4783
4784 if (version)
4785 {
4786 printf (_("mips-tfile %s%s\n"), pkgversion_string, version_string);
4787 fputs ("Copyright (C) 2011 Free Software Foundation, Inc.\n", stdout);
4788 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4789 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4790 stdout);
4791 exit (0);
4792 }
4793
4794 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4795 obj_in_name = argv[--argc];
4796
4797 if (object_name == (char *) 0 && optind <= argc - 2)
4798 object_name = argv[--argc];
4799
4800 /* If there is an output name, but no input name use
4801 the same file for both, deleting the name between
4802 opening it for input and opening it for output. */
4803 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4804 {
4805 obj_in_name = object_name;
4806 delete_input = 1;
4807 }
4808
4809 if (optind != argc - 1)
4810 had_errors++;
4811
4812 if (verbose || had_errors)
4813 {
4814 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4815 #ifdef TARGET_VERSION
4816 TARGET_VERSION;
4817 #endif
4818 fputc ('\n', stderr);
4819 }
4820
4821 if (object_name == (char *) 0 || had_errors)
4822 {
4823 fprintf (stderr, _("Calling Sequence:\n"));
4824 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4825 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4826 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4827 fprintf (stderr, "\n");
4828 fprintf (stderr, _("Debug levels are:\n"));
4829 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4830 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4831 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4832 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4833 return 1;
4834 }
4835
4836 if (obj_in_name == (char *) 0)
4837 obj_in_name = object_name;
4838
4839 if (rename_output && rename (object_name, obj_in_name) != 0)
4840 {
4841 char *buffer = (char *) allocate_multiple_pages (4);
4842 int len;
4843 int len2;
4844 int in_fd;
4845 int out_fd;
4846
4847 /* Rename failed, copy input file */
4848 in_fd = open (object_name, O_RDONLY, 0666);
4849 if (in_fd < 0)
4850 pfatal_with_name (object_name);
4851
4852 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4853 if (out_fd < 0)
4854 pfatal_with_name (obj_in_name);
4855
4856 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4857 {
4858 len2 = write (out_fd, buffer, len);
4859 if (len2 < 0)
4860 pfatal_with_name (object_name);
4861
4862 if (len != len2)
4863 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4864 }
4865
4866 free_multiple_pages ((page_t *) buffer, 4);
4867
4868 if (len < 0)
4869 pfatal_with_name (object_name);
4870
4871 if (close (in_fd) < 0)
4872 pfatal_with_name (object_name);
4873
4874 if (close (out_fd) < 0)
4875 pfatal_with_name (obj_in_name);
4876 }
4877
4878 /* Must open input before output, since the output may be the same file, and
4879 we need to get the input handle before truncating it. */
4880 obj_in_stream = fopen (obj_in_name, "r");
4881 if (obj_in_stream == (FILE *) 0)
4882 pfatal_with_name (obj_in_name);
4883
4884 if (delete_input && unlink (obj_in_name) != 0)
4885 pfatal_with_name (obj_in_name);
4886
4887 object_stream = fopen (object_name, "w");
4888 if (object_stream == (FILE *) 0)
4889 pfatal_with_name (object_name);
4890
4891 if (strcmp (argv[optind], "-") != 0)
4892 {
4893 input_name = argv[optind];
4894 if (freopen (argv[optind], "r", stdin) != stdin)
4895 pfatal_with_name (argv[optind]);
4896 }
4897
4898 copy_object (); /* scan & copy object file */
4899 parse_input (); /* scan all of input */
4900
4901 update_headers (); /* write out tfile */
4902 write_object ();
4903
4904 if (debug)
4905 {
4906 fprintf (stderr, "\n\tAllocation summary:\n\n");
4907 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4908 if (alloc_counts[i].total_alloc)
4909 {
4910 fprintf (stderr,
4911 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4912 alloc_counts[i].alloc_name,
4913 alloc_counts[i].total_alloc,
4914 alloc_counts[i].total_free,
4915 alloc_counts[i].total_pages);
4916 }
4917 }
4918
4919 return (had_errors) ? 1 : 0;
4920 }
4921
4922 \f
4923 /* Catch a signal and exit without dumping core. */
4924
4925 STATIC void
4926 catch_signal (int signum)
4927 {
4928 (void) signal (signum, SIG_DFL); /* just in case... */
4929 fatal ("%s", strsignal (signum));
4930 }
4931
4932 /* Print a fatal error message. NAME is the text.
4933 Also include a system error message based on `errno'. */
4934
4935 void
4936 pfatal_with_name (const char *msg)
4937 {
4938 int save_errno = errno; /* just in case.... */
4939 if (line_number > 0)
4940 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4941 else
4942 fprintf (stderr, "%s:", progname);
4943
4944 errno = save_errno;
4945 if (errno == 0)
4946 fprintf (stderr, "[errno = 0] %s\n", msg);
4947 else
4948 perror (msg);
4949
4950 exit (1);
4951 }
4952
4953 \f
4954 /* Procedure to die with an out of bounds error message. It has
4955 type int, so it can be used with an ?: expression within the
4956 ORIG_xxx macros, but the function never returns. */
4957
4958 static int
4959 out_of_bounds (symint_t indx, /* index that is out of bounds */
4960 symint_t max, /* maximum index */
4961 const char *str, /* string to print out */
4962 int prog_line) /* line number within mips-tfile.c */
4963 {
4964 if (indx < max) /* just in case */
4965 return 0;
4966
4967 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4968 progname, input_name, line_number, indx, str, max, prog_line);
4969
4970 exit (1);
4971 return 0; /* turn off warning messages */
4972 }
4973
4974 \f
4975 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4976 like sbrk's behind its back (or sbrk isn't available). If we use
4977 sbrk, we assume it gives us zeroed pages. */
4978
4979 #ifndef MALLOC_CHECK
4980 #ifdef USE_MALLOC
4981
4982 STATIC page_t *
4983 allocate_cluster (Size_t npages)
4984 {
4985 page_t *value = xcalloc (npages, PAGE_USIZE);
4986
4987 if (debug > 3)
4988 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4989
4990 return value;
4991 }
4992
4993 #else /* USE_MALLOC */
4994
4995 STATIC page_t *
4996 allocate_cluster (Size_t npages)
4997 {
4998 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4999 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5000
5001 if (offset != 0) /* align to a page boundary */
5002 {
5003 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5004 pfatal_with_name ("allocate_cluster");
5005
5006 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5007 }
5008
5009 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5010 pfatal_with_name ("allocate_cluster");
5011
5012 if (debug > 3)
5013 fprintf (stderr, "\talloc\tnpages = %lu, value = " HOST_PTR_PRINTF "\n",
5014 (unsigned long) npages, (void *) ptr);
5015
5016 return ptr;
5017 }
5018
5019 #endif /* USE_MALLOC */
5020
5021
5022 static page_t *cluster_ptr = NULL;
5023 static unsigned pages_left = 0;
5024
5025 #endif /* MALLOC_CHECK */
5026
5027
5028 /* Allocate some pages (which is initialized to 0). */
5029
5030 STATIC page_t *
5031 allocate_multiple_pages (Size_t npages)
5032 {
5033 #ifndef MALLOC_CHECK
5034 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5035 {
5036 pages_left = MAX_CLUSTER_PAGES;
5037 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5038 }
5039
5040 if (npages <= pages_left)
5041 {
5042 page_t *ptr = cluster_ptr;
5043 cluster_ptr += npages;
5044 pages_left -= npages;
5045 return ptr;
5046 }
5047
5048 return allocate_cluster (npages);
5049
5050 #else /* MALLOC_CHECK */
5051 return xcalloc (npages, PAGE_SIZE);
5052
5053 #endif /* MALLOC_CHECK */
5054 }
5055
5056
5057 /* Release some pages. */
5058
5059 STATIC void
5060 free_multiple_pages (page_t *page_ptr, Size_t npages)
5061 {
5062 #ifndef MALLOC_CHECK
5063 if (pages_left == 0)
5064 {
5065 cluster_ptr = page_ptr;
5066 pages_left = npages;
5067 }
5068
5069 else if ((page_ptr + npages) == cluster_ptr)
5070 {
5071 cluster_ptr -= npages;
5072 pages_left += npages;
5073 }
5074
5075 /* otherwise the page is not freed. If more than call is
5076 done, we probably should worry about it, but at present,
5077 the free pages is done right after an allocate. */
5078
5079 #else /* MALLOC_CHECK */
5080 free (page_ptr);
5081
5082 #endif /* MALLOC_CHECK */
5083 }
5084
5085
5086 /* Allocate one page (which is initialized to 0). */
5087
5088 STATIC page_t *
5089 allocate_page (void)
5090 {
5091 #ifndef MALLOC_CHECK
5092 if (pages_left == 0)
5093 {
5094 pages_left = MAX_CLUSTER_PAGES;
5095 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5096 }
5097
5098 pages_left--;
5099 return cluster_ptr++;
5100
5101 #else /* MALLOC_CHECK */
5102 return xcalloc (1, PAGE_SIZE);
5103
5104 #endif /* MALLOC_CHECK */
5105 }
5106
5107 \f
5108 /* Allocate scoping information. */
5109
5110 STATIC scope_t *
5111 allocate_scope (void)
5112 {
5113 scope_t *ptr;
5114 static scope_t initial_scope;
5115
5116 #ifndef MALLOC_CHECK
5117 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5118 if (ptr != (scope_t *) 0)
5119 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5120
5121 else
5122 {
5123 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5124 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5125
5126 if (unallocated == 0)
5127 {
5128 unallocated = PAGE_SIZE / sizeof (scope_t);
5129 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5130 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5131 }
5132
5133 ptr = &cur_page->scope[ --unallocated ];
5134 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5135 }
5136
5137 #else
5138 ptr = xmalloc (sizeof (scope_t));
5139
5140 #endif
5141
5142 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5143 *ptr = initial_scope;
5144 return ptr;
5145 }
5146
5147 /* Free scoping information. */
5148
5149 STATIC void
5150 free_scope (scope_t *ptr)
5151 {
5152 alloc_counts[ (int) alloc_type_scope ].total_free++;
5153
5154 #ifndef MALLOC_CHECK
5155 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5156 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5157
5158 #else
5159 free (ptr);
5160 #endif
5161
5162 }
5163
5164 \f
5165 /* Allocate links for pages in a virtual array. */
5166
5167 STATIC vlinks_t *
5168 allocate_vlinks (void)
5169 {
5170 vlinks_t *ptr;
5171 static vlinks_t initial_vlinks;
5172
5173 #ifndef MALLOC_CHECK
5174 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5175 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5176
5177 if (unallocated == 0)
5178 {
5179 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5180 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5181 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5182 }
5183
5184 ptr = &cur_page->vlinks[ --unallocated ];
5185 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5186
5187 #else
5188 ptr = xmalloc (sizeof (vlinks_t));
5189
5190 #endif
5191
5192 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5193 *ptr = initial_vlinks;
5194 return ptr;
5195 }
5196
5197 \f
5198 /* Allocate string hash buckets. */
5199
5200 STATIC shash_t *
5201 allocate_shash (void)
5202 {
5203 shash_t *ptr;
5204 static shash_t initial_shash;
5205
5206 #ifndef MALLOC_CHECK
5207 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5208 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5209
5210 if (unallocated == 0)
5211 {
5212 unallocated = PAGE_SIZE / sizeof (shash_t);
5213 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5214 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5215 }
5216
5217 ptr = &cur_page->shash[ --unallocated ];
5218 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5219
5220 #else
5221 ptr = xmalloc (sizeof (shash_t));
5222
5223 #endif
5224
5225 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5226 *ptr = initial_shash;
5227 return ptr;
5228 }
5229
5230 \f
5231 /* Allocate type hash buckets. */
5232
5233 STATIC thash_t *
5234 allocate_thash (void)
5235 {
5236 thash_t *ptr;
5237 static thash_t initial_thash;
5238
5239 #ifndef MALLOC_CHECK
5240 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5241 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5242
5243 if (unallocated == 0)
5244 {
5245 unallocated = PAGE_SIZE / sizeof (thash_t);
5246 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5247 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5248 }
5249
5250 ptr = &cur_page->thash[ --unallocated ];
5251 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5252
5253 #else
5254 ptr = xmalloc (sizeof (thash_t));
5255
5256 #endif
5257
5258 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5259 *ptr = initial_thash;
5260 return ptr;
5261 }
5262
5263 \f
5264 /* Allocate structure, union, or enum tag information. */
5265
5266 STATIC tag_t *
5267 allocate_tag (void)
5268 {
5269 tag_t *ptr;
5270 static tag_t initial_tag;
5271
5272 #ifndef MALLOC_CHECK
5273 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5274 if (ptr != (tag_t *) 0)
5275 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5276
5277 else
5278 {
5279 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5280 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5281
5282 if (unallocated == 0)
5283 {
5284 unallocated = PAGE_SIZE / sizeof (tag_t);
5285 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5286 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5287 }
5288
5289 ptr = &cur_page->tag[ --unallocated ];
5290 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5291 }
5292
5293 #else
5294 ptr = xmalloc (sizeof (tag_t));
5295
5296 #endif
5297
5298 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5299 *ptr = initial_tag;
5300 return ptr;
5301 }
5302
5303 /* Free scoping information. */
5304
5305 STATIC void
5306 free_tag (tag_t *ptr)
5307 {
5308 alloc_counts[ (int) alloc_type_tag ].total_free++;
5309
5310 #ifndef MALLOC_CHECK
5311 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5312 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5313
5314 #else
5315 free (ptr);
5316 #endif
5317
5318 }
5319
5320 \f
5321 /* Allocate forward reference to a yet unknown tag. */
5322
5323 STATIC forward_t *
5324 allocate_forward (void)
5325 {
5326 forward_t *ptr;
5327 static forward_t initial_forward;
5328
5329 #ifndef MALLOC_CHECK
5330 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5331 if (ptr != (forward_t *) 0)
5332 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5333
5334 else
5335 {
5336 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5337 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5338
5339 if (unallocated == 0)
5340 {
5341 unallocated = PAGE_SIZE / sizeof (forward_t);
5342 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5343 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5344 }
5345
5346 ptr = &cur_page->forward[ --unallocated ];
5347 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5348 }
5349
5350 #else
5351 ptr = xmalloc (sizeof (forward_t));
5352
5353 #endif
5354
5355 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5356 *ptr = initial_forward;
5357 return ptr;
5358 }
5359
5360 /* Free scoping information. */
5361
5362 STATIC void
5363 free_forward (forward_t *ptr)
5364 {
5365 alloc_counts[ (int) alloc_type_forward ].total_free++;
5366
5367 #ifndef MALLOC_CHECK
5368 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5369 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5370
5371 #else
5372 free (ptr);
5373 #endif
5374
5375 }
5376
5377 \f
5378 /* Allocate head of type hash list. */
5379
5380 STATIC thead_t *
5381 allocate_thead (void)
5382 {
5383 thead_t *ptr;
5384 static thead_t initial_thead;
5385
5386 #ifndef MALLOC_CHECK
5387 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5388 if (ptr != (thead_t *) 0)
5389 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5390
5391 else
5392 {
5393 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5394 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5395
5396 if (unallocated == 0)
5397 {
5398 unallocated = PAGE_SIZE / sizeof (thead_t);
5399 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5400 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5401 }
5402
5403 ptr = &cur_page->thead[ --unallocated ];
5404 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5405 }
5406
5407 #else
5408 ptr = xmalloc (sizeof (thead_t));
5409
5410 #endif
5411
5412 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5413 *ptr = initial_thead;
5414 return ptr;
5415 }
5416
5417 /* Free scoping information. */
5418
5419 STATIC void
5420 free_thead (thead_t *ptr)
5421 {
5422 alloc_counts[ (int) alloc_type_thead ].total_free++;
5423
5424 #ifndef MALLOC_CHECK
5425 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5426 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5427
5428 #else
5429 free (ptr);
5430 #endif
5431
5432 }
5433
5434 #endif /* MIPS_DEBUGGING_INFO */
5435
5436 \f
5437 /* Output an error message and exit. */
5438
5439 void
5440 fatal (const char *format, ...)
5441 {
5442 va_list ap;
5443
5444 va_start (ap, format);
5445
5446 if (line_number > 0)
5447 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5448 else
5449 fprintf (stderr, "%s:", progname);
5450
5451 vfprintf (stderr, format, ap);
5452 va_end (ap);
5453 fprintf (stderr, "\n");
5454 if (line_number > 0)
5455 fprintf (stderr, "line:\t%s\n", cur_line_start);
5456
5457 saber_stop ();
5458 exit (1);
5459 }
5460
5461 void
5462 error (const char *format, ...)
5463 {
5464 va_list ap;
5465
5466 va_start (ap, format);
5467
5468 if (line_number > 0)
5469 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5470 else
5471 fprintf (stderr, "%s:", progname);
5472
5473 vfprintf (stderr, format, ap);
5474 fprintf (stderr, "\n");
5475 if (line_number > 0)
5476 fprintf (stderr, "line:\t%s\n", cur_line_start);
5477
5478 had_errors++;
5479 va_end (ap);
5480
5481 saber_stop ();
5482 }
5483
5484 /* More 'friendly' abort that prints the line and file. */
5485
5486 void
5487 fancy_abort (const char *file, int line, const char *func)
5488 {
5489 fatal ("abort in %s, at %s:%d", func, file, line);
5490 }
5491 \f
5492
5493 /* When `malloc.c' is compiled with `rcheck' defined,
5494 it calls this function to report clobberage. */
5495
5496 void
5497 botch (const char *s)
5498 {
5499 fatal ("%s", s);
5500 }
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