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gfortran.h (gfc_expr): Remove from_H, add "representation" struct.
[official-gcc.git] / gcc / mips-tfile.c
blobac7030049285bb03c5656450c6083cf95e867cc1
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 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 2, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING. If not, write to the Free
23 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
24 02110-1301, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indices are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "coretypes.h"
606 #include "tm.h"
607 #include "version.h"
608 #include "intl.h"
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 /* Include getopt.h for the sake of getopt_long. */
615 #include "getopt.h"
616
617 #ifndef __LINE__
618 #define __LINE__ 0
619 #endif
620
621 /* Due to size_t being defined in sys/types.h and different
622 in stddef.h, we have to do this by hand..... Note, these
623 types are correct for MIPS based systems, and may not be
624 correct for other systems. Ultrix 4.0 and Silicon Graphics
625 have this fixed, but since the following is correct, and
626 the fact that including stddef.h gets you GCC's version
627 instead of the standard one it's not worth it to fix it. */
628
629 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
630 #define Size_t long unsigned int
631 #else
632 #define Size_t unsigned int
633 #endif
634 #define Ptrdiff_t long
635
636 /* The following might be called from obstack or malloc,
637 so they can't be static. */
638
639 extern void pfatal_with_name (const char *) ATTRIBUTE_NORETURN;
640 extern void botch (const char *) ATTRIBUTE_NORETURN;
641
642 extern void fatal (const char *format, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
643 extern void error (const char *format, ...) ATTRIBUTE_PRINTF_1;
644 \f
645 #ifndef MIPS_DEBUGGING_INFO
646
647 static int line_number;
648 static int cur_line_start;
649 static int debug;
650 static int had_errors;
651 static const char *progname;
652 static const char *input_name;
653
654 int
655 main (void)
656 {
657 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
658 exit (1);
659 }
660
661 #else /* MIPS_DEBUGGING defined */
662 \f
663 /* The local and global symbols have a field index, so undo any defines
664 of index -> strchr. */
665
666 #undef index
667
668 #include <signal.h>
669
670 #ifndef CROSS_DIRECTORY_STRUCTURE
671 #include <a.out.h>
672 #else
673 #include "mips/a.out.h"
674 #endif /* CROSS_DIRECTORY_STRUCTURE */
675
676 #include "gstab.h"
677
678 #define STAB_CODE_TYPE enum __stab_debug_code
679
680 #ifndef MALLOC_CHECK
681 #ifdef __SABER__
682 #define MALLOC_CHECK
683 #endif
684 #endif
685
686 #define IS_ASM_IDENT(ch) \
687 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
688
689 \f
690 /* Redefinition of storage classes as an enumeration for better
691 debugging. */
692
693 typedef enum sc {
694 sc_Nil = scNil, /* no storage class */
695 sc_Text = scText, /* text symbol */
696 sc_Data = scData, /* initialized data symbol */
697 sc_Bss = scBss, /* un-initialized data symbol */
698 sc_Register = scRegister, /* value of symbol is register number */
699 sc_Abs = scAbs, /* value of symbol is absolute */
700 sc_Undefined = scUndefined, /* who knows? */
701 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
702 sc_Bits = scBits, /* this is a bit field */
703 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
704 sc_RegImage = scRegImage, /* register value saved on stack */
705 sc_Info = scInfo, /* symbol contains debugger information */
706 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
707 sc_SData = scSData, /* load time only small data */
708 sc_SBss = scSBss, /* load time only small common */
709 sc_RData = scRData, /* load time only read only data */
710 sc_Var = scVar, /* Var parameter (fortran,pascal) */
711 sc_Common = scCommon, /* common variable */
712 sc_SCommon = scSCommon, /* small common */
713 sc_VarRegister = scVarRegister, /* Var parameter in a register */
714 sc_Variant = scVariant, /* Variant record */
715 sc_SUndefined = scSUndefined, /* small undefined(external) data */
716 sc_Init = scInit, /* .init section symbol */
717 sc_Max = scMax /* Max storage class+1 */
718 } sc_t;
719
720 /* Redefinition of symbol type. */
721
722 typedef enum st {
723 st_Nil = stNil, /* Nuthin' special */
724 st_Global = stGlobal, /* external symbol */
725 st_Static = stStatic, /* static */
726 st_Param = stParam, /* procedure argument */
727 st_Local = stLocal, /* local variable */
728 st_Label = stLabel, /* label */
729 st_Proc = stProc, /* " " Procedure */
730 st_Block = stBlock, /* beginning of block */
731 st_End = stEnd, /* end (of anything) */
732 st_Member = stMember, /* member (of anything - struct/union/enum */
733 st_Typedef = stTypedef, /* type definition */
734 st_File = stFile, /* file name */
735 st_RegReloc = stRegReloc, /* register relocation */
736 st_Forward = stForward, /* forwarding address */
737 st_StaticProc = stStaticProc, /* load time only static procs */
738 st_Constant = stConstant, /* const */
739 st_Str = stStr, /* string */
740 st_Number = stNumber, /* pure number (i.e. 4 NOR 2+2) */
741 st_Expr = stExpr, /* 2+2 vs. 4 */
742 st_Type = stType, /* post-coercion SER */
743 st_Max = stMax /* max type+1 */
744 } st_t;
745
746 /* Redefinition of type qualifiers. */
747
748 typedef enum tq {
749 tq_Nil = tqNil, /* bt is what you see */
750 tq_Ptr = tqPtr, /* pointer */
751 tq_Proc = tqProc, /* procedure */
752 tq_Array = tqArray, /* duh */
753 tq_Far = tqFar, /* longer addressing - 8086/8 land */
754 tq_Vol = tqVol, /* volatile */
755 tq_Max = tqMax /* Max type qualifier+1 */
756 } tq_t;
757
758 /* Redefinition of basic types. */
759
760 typedef enum bt {
761 bt_Nil = btNil, /* undefined */
762 bt_Adr = btAdr, /* address - integer same size as pointer */
763 bt_Char = btChar, /* character */
764 bt_UChar = btUChar, /* unsigned character */
765 bt_Short = btShort, /* short */
766 bt_UShort = btUShort, /* unsigned short */
767 bt_Int = btInt, /* int */
768 bt_UInt = btUInt, /* unsigned int */
769 bt_Long = btLong, /* long */
770 bt_ULong = btULong, /* unsigned long */
771 bt_Float = btFloat, /* float (real) */
772 bt_Double = btDouble, /* Double (real) */
773 bt_Struct = btStruct, /* Structure (Record) */
774 bt_Union = btUnion, /* Union (variant) */
775 bt_Enum = btEnum, /* Enumerated */
776 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
777 bt_Range = btRange, /* subrange of int */
778 bt_Set = btSet, /* pascal sets */
779 bt_Complex = btComplex, /* fortran complex */
780 bt_DComplex = btDComplex, /* fortran double complex */
781 bt_Indirect = btIndirect, /* forward or unnamed typedef */
782 bt_FixedDec = btFixedDec, /* Fixed Decimal */
783 bt_FloatDec = btFloatDec, /* Float Decimal */
784 bt_String = btString, /* Varying Length Character String */
785 bt_Bit = btBit, /* Aligned Bit String */
786 bt_Picture = btPicture, /* Picture */
787
788 #ifdef btVoid
789 bt_Void = btVoid, /* Void */
790 #else
791 #define bt_Void bt_Nil
792 #endif
793
794 bt_Max = btMax /* Max basic type+1 */
795 } bt_t;
796
797 \f
798
799 /* Basic COFF storage classes. */
800 enum coff_storage {
801 C_EFCN = -1,
802 C_NULL = 0,
803 C_AUTO = 1,
804 C_EXT = 2,
805 C_STAT = 3,
806 C_REG = 4,
807 C_EXTDEF = 5,
808 C_LABEL = 6,
809 C_ULABEL = 7,
810 C_MOS = 8,
811 C_ARG = 9,
812 C_STRTAG = 10,
813 C_MOU = 11,
814 C_UNTAG = 12,
815 C_TPDEF = 13,
816 C_USTATIC = 14,
817 C_ENTAG = 15,
818 C_MOE = 16,
819 C_REGPARM = 17,
820 C_FIELD = 18,
821 C_BLOCK = 100,
822 C_FCN = 101,
823 C_EOS = 102,
824 C_FILE = 103,
825 C_LINE = 104,
826 C_ALIAS = 105,
827 C_HIDDEN = 106,
828 C_MAX = 107
829 } coff_storage_t;
830
831 /* Regular COFF fundamental type. */
832 typedef enum coff_type {
833 T_NULL = 0,
834 T_ARG = 1,
835 T_CHAR = 2,
836 T_SHORT = 3,
837 T_INT = 4,
838 T_LONG = 5,
839 T_FLOAT = 6,
840 T_DOUBLE = 7,
841 T_STRUCT = 8,
842 T_UNION = 9,
843 T_ENUM = 10,
844 T_MOE = 11,
845 T_UCHAR = 12,
846 T_USHORT = 13,
847 T_UINT = 14,
848 T_ULONG = 15,
849 T_MAX = 16
850 } coff_type_t;
851
852 /* Regular COFF derived types. */
853 typedef enum coff_dt {
854 DT_NON = 0,
855 DT_PTR = 1,
856 DT_FCN = 2,
857 DT_ARY = 3,
858 DT_MAX = 4
859 } coff_dt_t;
860
861 #define N_BTMASK 017 /* bitmask to isolate basic type */
862 #define N_TMASK 003 /* bitmask to isolate derived type */
863 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
864 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
865 #define N_TQ 6 /* # of type qualifiers */
866
867 /* States for whether to hash type or not. */
868 typedef enum hash_state {
869 hash_no = 0, /* don't hash type */
870 hash_yes = 1, /* ok to hash type, or use previous hash */
871 hash_record = 2 /* ok to record hash, but don't use prev. */
872 } hash_state_t;
873
874
875 /* Types of different sized allocation requests. */
876 enum alloc_type {
877 alloc_type_none, /* dummy value */
878 alloc_type_scope, /* nested scopes linked list */
879 alloc_type_vlinks, /* glue linking pages in varray */
880 alloc_type_shash, /* string hash element */
881 alloc_type_thash, /* type hash element */
882 alloc_type_tag, /* struct/union/tag element */
883 alloc_type_forward, /* element to hold unknown tag */
884 alloc_type_thead, /* head of type hash list */
885 alloc_type_varray, /* general varray allocation */
886 alloc_type_last /* last+1 element for array bounds */
887 };
888
889 \f
890 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
891 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
892
893
894 /* Structures to provide n-number of virtual arrays, each of which can
895 grow linearly, and which are written in the object file as sequential
896 pages. On systems with a BSD malloc that define USE_MALLOC, the
897 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
898 adds its overhead, and rounds up to the next power of 2. Pages are
899 linked together via a linked list. */
900
901 #ifndef PAGE_SIZE
902 #define PAGE_SIZE 32768 /* size of varray pages */
903 #endif
904
905 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
906
907
908 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
909 #ifndef USE_MALLOC /* in one memory request */
910 #define MAX_CLUSTER_PAGES 64
911 #else
912 #define MAX_CLUSTER_PAGES 63
913 #endif
914 #endif
915
916
917 /* Linked list connecting separate page allocations. */
918 typedef struct vlinks {
919 struct vlinks *prev; /* previous set of pages */
920 struct vlinks *next; /* next set of pages */
921 union page *datum; /* start of page */
922 unsigned long start_index; /* starting index # of page */
923 } vlinks_t;
924
925
926 /* Virtual array header. */
927 typedef struct varray {
928 vlinks_t *first; /* first page link */
929 vlinks_t *last; /* last page link */
930 unsigned long num_allocated; /* # objects allocated */
931 unsigned short object_size; /* size in bytes of each object */
932 unsigned short objects_per_page; /* # objects that can fit on a page */
933 unsigned short objects_last_page; /* # objects allocated on last page */
934 } varray_t;
935
936 #ifndef MALLOC_CHECK
937 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
938 #else
939 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
940 #endif
941
942 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
943 (vlinks_t *) 0, /* first */ \
944 (vlinks_t *) 0, /* last */ \
945 0, /* num_allocated */ \
946 sizeof (type), /* object_size */ \
947 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
948 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
949 }
950
951 #define INITIALIZE_VARRAY(x,type) \
952 do { \
953 (x)->object_size = sizeof (type); \
954 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
955 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
956 } while (0)
957
958 /* Master type for indexes within the symbol table. */
959 typedef unsigned long symint_t;
960
961
962 /* Linked list support for nested scopes (file, block, structure, etc.). */
963 typedef struct scope {
964 struct scope *prev; /* previous scope level */
965 struct scope *free; /* free list pointer */
966 SYMR *lsym; /* pointer to local symbol node */
967 symint_t lnumber; /* lsym index */
968 st_t type; /* type of the node */
969 } scope_t;
970
971
972 /* Forward reference list for tags referenced, but not yet defined. */
973 typedef struct forward {
974 struct forward *next; /* next forward reference */
975 struct forward *free; /* free list pointer */
976 AUXU *ifd_ptr; /* pointer to store file index */
977 AUXU *index_ptr; /* pointer to store symbol index */
978 AUXU *type_ptr; /* pointer to munge type info */
979 } forward_t;
980
981
982 /* Linked list support for tags. The first tag in the list is always
983 the current tag for that block. */
984 typedef struct tag {
985 struct tag *free; /* free list pointer */
986 struct shash *hash_ptr; /* pointer to the hash table head */
987 struct tag *same_name; /* tag with same name in outer scope */
988 struct tag *same_block; /* next tag defined in the same block. */
989 struct forward *forward_ref; /* list of forward references */
990 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
991 symint_t ifd; /* file # tag defined in */
992 symint_t indx; /* index within file's local symbols */
993 } tag_t;
994
995
996 /* Head of a block's linked list of tags. */
997 typedef struct thead {
998 struct thead *prev; /* previous block */
999 struct thead *free; /* free list pointer */
1000 struct tag *first_tag; /* first tag in block defined */
1001 } thead_t;
1002
1003
1004 /* Union containing pointers to each the small structures which are freed up. */
1005 typedef union small_free {
1006 scope_t *f_scope; /* scope structure */
1007 thead_t *f_thead; /* tag head structure */
1008 tag_t *f_tag; /* tag element structure */
1009 forward_t *f_forward; /* forward tag reference */
1010 } small_free_t;
1011
1012
1013 /* String hash table support. The size of the hash table must fit
1014 within a page. */
1015
1016 #ifndef SHASH_SIZE
1017 #define SHASH_SIZE 1009
1018 #endif
1019
1020 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1021
1022 typedef struct shash {
1023 struct shash *next; /* next hash value */
1024 char *string; /* string we are hashing */
1025 symint_t len; /* string length */
1026 symint_t indx; /* index within string table */
1027 EXTR *esym_ptr; /* global symbol pointer */
1028 SYMR *sym_ptr; /* local symbol pointer */
1029 SYMR *end_ptr; /* symbol pointer to end block */
1030 tag_t *tag_ptr; /* tag pointer */
1031 PDR *proc_ptr; /* procedure descriptor pointer */
1032 } shash_t;
1033
1034
1035 /* Type hash table support. The size of the hash table must fit
1036 within a page with the other extended file descriptor information.
1037 Because unique types which are hashed are fewer in number than
1038 strings, we use a smaller hash value. */
1039
1040 #ifndef THASH_SIZE
1041 #define THASH_SIZE 113
1042 #endif
1043
1044 typedef struct thash {
1045 struct thash *next; /* next hash value */
1046 AUXU type; /* type we are hashing */
1047 symint_t indx; /* index within string table */
1048 } thash_t;
1049
1050
1051 /* Extended file descriptor that contains all of the support necessary
1052 to add things to each file separately. */
1053 typedef struct efdr {
1054 FDR fdr; /* File header to be written out */
1055 FDR *orig_fdr; /* original file header */
1056 char *name; /* filename */
1057 int name_len; /* length of the filename */
1058 symint_t void_type; /* aux. pointer to 'void' type */
1059 symint_t int_type; /* aux. pointer to 'int' type */
1060 scope_t *cur_scope; /* current nested scopes */
1061 symint_t file_index; /* current file number */
1062 int nested_scopes; /* # nested scopes */
1063 varray_t strings; /* local strings */
1064 varray_t symbols; /* local symbols */
1065 varray_t procs; /* procedures */
1066 varray_t aux_syms; /* auxiliary symbols */
1067 struct efdr *next_file; /* next file descriptor */
1068 /* string/type hash tables */
1069 shash_t **shash_head; /* string hash table */
1070 thash_t *thash_head[THASH_SIZE];
1071 } efdr_t;
1072
1073 /* Pre-initialized extended file structure. */
1074 static int init_file_initialized = 0;
1075 static efdr_t init_file;
1076
1077 static efdr_t *first_file; /* first file descriptor */
1078 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1079
1080
1081 /* Union of various things that are held in pages. */
1082 typedef union page {
1083 char byte [ PAGE_SIZE ];
1084 unsigned char ubyte [ PAGE_SIZE ];
1085 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1086 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1087 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1088 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1089 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1090 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1091 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1092 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1093 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1094 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1095 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1096 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1097 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1098 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1099 } page_t;
1100
1101
1102 /* Structure holding allocation information for small sized structures. */
1103 typedef struct alloc_info {
1104 const char *alloc_name; /* name of this allocation type (must be first) */
1105 page_t *cur_page; /* current page being allocated from */
1106 small_free_t free_list; /* current free list if any */
1107 int unallocated; /* number of elements unallocated on page */
1108 int total_alloc; /* total number of allocations */
1109 int total_free; /* total number of frees */
1110 int total_pages; /* total number of pages allocated */
1111 } alloc_info_t;
1112
1113 /* Type information collected together. */
1114 typedef struct type_info {
1115 bt_t basic_type; /* basic type */
1116 coff_type_t orig_type; /* original COFF-based type */
1117 int num_tq; /* # type qualifiers */
1118 int num_dims; /* # dimensions */
1119 int num_sizes; /* # sizes */
1120 int extra_sizes; /* # extra sizes not tied with dims */
1121 tag_t * tag_ptr; /* tag pointer */
1122 int bitfield; /* symbol is a bitfield */
1123 int unknown_tag; /* this is an unknown tag */
1124 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1125 symint_t dimensions [N_TQ]; /* dimensions for each array */
1126 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1127 struct/union/enum + bitfield size */
1128 } type_info_t;
1129
1130 /* Pre-initialized type_info struct. */
1131 static type_info_t type_info_init = {
1132 bt_Nil, /* basic type */
1133 T_NULL, /* original COFF-based type */
1134 0, /* # type qualifiers */
1135 0, /* # dimensions */
1136 0, /* # sizes */
1137 0, /* sizes not tied with dims */
1138 NULL, /* ptr to tag */
1139 0, /* bitfield */
1140 0, /* unknown tag */
1141 { /* type qualifiers */
1142 tq_Nil,
1143 tq_Nil,
1144 tq_Nil,
1145 tq_Nil,
1146 tq_Nil,
1147 tq_Nil,
1148 },
1149 { /* dimensions */
1150 0,
1151 0,
1152 0,
1153 0,
1154 0,
1155 0
1156 },
1157 { /* sizes */
1158 0,
1159 0,
1160 0,
1161 0,
1162 0,
1163 0,
1164 0,
1165 0,
1166 },
1167 };
1168
1169
1170 /* Global virtual arrays & hash table for external strings as well as
1171 for the tags table and global tables for file descriptors, and
1172 dense numbers. */
1173
1174 static varray_t file_desc = INIT_VARRAY (efdr_t);
1175 static varray_t dense_num = INIT_VARRAY (DNR);
1176 static varray_t tag_strings = INIT_VARRAY (char);
1177 static varray_t ext_strings = INIT_VARRAY (char);
1178 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1179
1180 static shash_t *orig_str_hash[SHASH_SIZE];
1181 static shash_t *ext_str_hash [SHASH_SIZE];
1182 static shash_t *tag_hash [SHASH_SIZE];
1183
1184 /* Static types for int and void. Also, remember the last function's
1185 type (which is set up when we encounter the declaration for the
1186 function, and used when the end block for the function is emitted. */
1187
1188 static type_info_t int_type_info;
1189 static type_info_t void_type_info;
1190 static type_info_t last_func_type_info;
1191 static EXTR *last_func_eptr;
1192
1193
1194 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1195 really should use bt_Void, but this causes the current ecoff GDB to
1196 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1197 2.0) doesn't understand it, even though the compiler generates it.
1198 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1199 suite, but for now go with what works. */
1200
1201 static const bt_t map_coff_types[ (int) T_MAX ] = {
1202 bt_Nil, /* T_NULL */
1203 bt_Nil, /* T_ARG */
1204 bt_Char, /* T_CHAR */
1205 bt_Short, /* T_SHORT */
1206 bt_Int, /* T_INT */
1207 bt_Long, /* T_LONG */
1208 bt_Float, /* T_FLOAT */
1209 bt_Double, /* T_DOUBLE */
1210 bt_Struct, /* T_STRUCT */
1211 bt_Union, /* T_UNION */
1212 bt_Enum, /* T_ENUM */
1213 bt_Enum, /* T_MOE */
1214 bt_UChar, /* T_UCHAR */
1215 bt_UShort, /* T_USHORT */
1216 bt_UInt, /* T_UINT */
1217 bt_ULong /* T_ULONG */
1218 };
1219
1220 /* Convert COFF storage class to ECOFF storage class. */
1221 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1222 sc_Nil, /* 0: C_NULL */
1223 sc_Abs, /* 1: C_AUTO auto var */
1224 sc_Undefined, /* 2: C_EXT external */
1225 sc_Data, /* 3: C_STAT static */
1226 sc_Register, /* 4: C_REG register */
1227 sc_Undefined, /* 5: C_EXTDEF ??? */
1228 sc_Text, /* 6: C_LABEL label */
1229 sc_Text, /* 7: C_ULABEL user label */
1230 sc_Info, /* 8: C_MOS member of struct */
1231 sc_Abs, /* 9: C_ARG argument */
1232 sc_Info, /* 10: C_STRTAG struct tag */
1233 sc_Info, /* 11: C_MOU member of union */
1234 sc_Info, /* 12: C_UNTAG union tag */
1235 sc_Info, /* 13: C_TPDEF typedef */
1236 sc_Data, /* 14: C_USTATIC ??? */
1237 sc_Info, /* 15: C_ENTAG enum tag */
1238 sc_Info, /* 16: C_MOE member of enum */
1239 sc_Register, /* 17: C_REGPARM register parameter */
1240 sc_Bits, /* 18; C_FIELD bitfield */
1241 sc_Nil, /* 19 */
1242 sc_Nil, /* 20 */
1243 sc_Nil, /* 21 */
1244 sc_Nil, /* 22 */
1245 sc_Nil, /* 23 */
1246 sc_Nil, /* 24 */
1247 sc_Nil, /* 25 */
1248 sc_Nil, /* 26 */
1249 sc_Nil, /* 27 */
1250 sc_Nil, /* 28 */
1251 sc_Nil, /* 29 */
1252 sc_Nil, /* 30 */
1253 sc_Nil, /* 31 */
1254 sc_Nil, /* 32 */
1255 sc_Nil, /* 33 */
1256 sc_Nil, /* 34 */
1257 sc_Nil, /* 35 */
1258 sc_Nil, /* 36 */
1259 sc_Nil, /* 37 */
1260 sc_Nil, /* 38 */
1261 sc_Nil, /* 39 */
1262 sc_Nil, /* 40 */
1263 sc_Nil, /* 41 */
1264 sc_Nil, /* 42 */
1265 sc_Nil, /* 43 */
1266 sc_Nil, /* 44 */
1267 sc_Nil, /* 45 */
1268 sc_Nil, /* 46 */
1269 sc_Nil, /* 47 */
1270 sc_Nil, /* 48 */
1271 sc_Nil, /* 49 */
1272 sc_Nil, /* 50 */
1273 sc_Nil, /* 51 */
1274 sc_Nil, /* 52 */
1275 sc_Nil, /* 53 */
1276 sc_Nil, /* 54 */
1277 sc_Nil, /* 55 */
1278 sc_Nil, /* 56 */
1279 sc_Nil, /* 57 */
1280 sc_Nil, /* 58 */
1281 sc_Nil, /* 59 */
1282 sc_Nil, /* 60 */
1283 sc_Nil, /* 61 */
1284 sc_Nil, /* 62 */
1285 sc_Nil, /* 63 */
1286 sc_Nil, /* 64 */
1287 sc_Nil, /* 65 */
1288 sc_Nil, /* 66 */
1289 sc_Nil, /* 67 */
1290 sc_Nil, /* 68 */
1291 sc_Nil, /* 69 */
1292 sc_Nil, /* 70 */
1293 sc_Nil, /* 71 */
1294 sc_Nil, /* 72 */
1295 sc_Nil, /* 73 */
1296 sc_Nil, /* 74 */
1297 sc_Nil, /* 75 */
1298 sc_Nil, /* 76 */
1299 sc_Nil, /* 77 */
1300 sc_Nil, /* 78 */
1301 sc_Nil, /* 79 */
1302 sc_Nil, /* 80 */
1303 sc_Nil, /* 81 */
1304 sc_Nil, /* 82 */
1305 sc_Nil, /* 83 */
1306 sc_Nil, /* 84 */
1307 sc_Nil, /* 85 */
1308 sc_Nil, /* 86 */
1309 sc_Nil, /* 87 */
1310 sc_Nil, /* 88 */
1311 sc_Nil, /* 89 */
1312 sc_Nil, /* 90 */
1313 sc_Nil, /* 91 */
1314 sc_Nil, /* 92 */
1315 sc_Nil, /* 93 */
1316 sc_Nil, /* 94 */
1317 sc_Nil, /* 95 */
1318 sc_Nil, /* 96 */
1319 sc_Nil, /* 97 */
1320 sc_Nil, /* 98 */
1321 sc_Nil, /* 99 */
1322 sc_Text, /* 100: C_BLOCK block start/end */
1323 sc_Text, /* 101: C_FCN function start/end */
1324 sc_Info, /* 102: C_EOS end of struct/union/enum */
1325 sc_Nil, /* 103: C_FILE file start */
1326 sc_Nil, /* 104: C_LINE line number */
1327 sc_Nil, /* 105: C_ALIAS combined type info */
1328 sc_Nil, /* 106: C_HIDDEN ??? */
1329 };
1330
1331 /* Convert COFF storage class to ECOFF symbol type. */
1332 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1333 st_Nil, /* 0: C_NULL */
1334 st_Local, /* 1: C_AUTO auto var */
1335 st_Global, /* 2: C_EXT external */
1336 st_Static, /* 3: C_STAT static */
1337 st_Local, /* 4: C_REG register */
1338 st_Global, /* 5: C_EXTDEF ??? */
1339 st_Label, /* 6: C_LABEL label */
1340 st_Label, /* 7: C_ULABEL user label */
1341 st_Member, /* 8: C_MOS member of struct */
1342 st_Param, /* 9: C_ARG argument */
1343 st_Block, /* 10: C_STRTAG struct tag */
1344 st_Member, /* 11: C_MOU member of union */
1345 st_Block, /* 12: C_UNTAG union tag */
1346 st_Typedef, /* 13: C_TPDEF typedef */
1347 st_Static, /* 14: C_USTATIC ??? */
1348 st_Block, /* 15: C_ENTAG enum tag */
1349 st_Member, /* 16: C_MOE member of enum */
1350 st_Param, /* 17: C_REGPARM register parameter */
1351 st_Member, /* 18; C_FIELD bitfield */
1352 st_Nil, /* 19 */
1353 st_Nil, /* 20 */
1354 st_Nil, /* 21 */
1355 st_Nil, /* 22 */
1356 st_Nil, /* 23 */
1357 st_Nil, /* 24 */
1358 st_Nil, /* 25 */
1359 st_Nil, /* 26 */
1360 st_Nil, /* 27 */
1361 st_Nil, /* 28 */
1362 st_Nil, /* 29 */
1363 st_Nil, /* 30 */
1364 st_Nil, /* 31 */
1365 st_Nil, /* 32 */
1366 st_Nil, /* 33 */
1367 st_Nil, /* 34 */
1368 st_Nil, /* 35 */
1369 st_Nil, /* 36 */
1370 st_Nil, /* 37 */
1371 st_Nil, /* 38 */
1372 st_Nil, /* 39 */
1373 st_Nil, /* 40 */
1374 st_Nil, /* 41 */
1375 st_Nil, /* 42 */
1376 st_Nil, /* 43 */
1377 st_Nil, /* 44 */
1378 st_Nil, /* 45 */
1379 st_Nil, /* 46 */
1380 st_Nil, /* 47 */
1381 st_Nil, /* 48 */
1382 st_Nil, /* 49 */
1383 st_Nil, /* 50 */
1384 st_Nil, /* 51 */
1385 st_Nil, /* 52 */
1386 st_Nil, /* 53 */
1387 st_Nil, /* 54 */
1388 st_Nil, /* 55 */
1389 st_Nil, /* 56 */
1390 st_Nil, /* 57 */
1391 st_Nil, /* 58 */
1392 st_Nil, /* 59 */
1393 st_Nil, /* 60 */
1394 st_Nil, /* 61 */
1395 st_Nil, /* 62 */
1396 st_Nil, /* 63 */
1397 st_Nil, /* 64 */
1398 st_Nil, /* 65 */
1399 st_Nil, /* 66 */
1400 st_Nil, /* 67 */
1401 st_Nil, /* 68 */
1402 st_Nil, /* 69 */
1403 st_Nil, /* 70 */
1404 st_Nil, /* 71 */
1405 st_Nil, /* 72 */
1406 st_Nil, /* 73 */
1407 st_Nil, /* 74 */
1408 st_Nil, /* 75 */
1409 st_Nil, /* 76 */
1410 st_Nil, /* 77 */
1411 st_Nil, /* 78 */
1412 st_Nil, /* 79 */
1413 st_Nil, /* 80 */
1414 st_Nil, /* 81 */
1415 st_Nil, /* 82 */
1416 st_Nil, /* 83 */
1417 st_Nil, /* 84 */
1418 st_Nil, /* 85 */
1419 st_Nil, /* 86 */
1420 st_Nil, /* 87 */
1421 st_Nil, /* 88 */
1422 st_Nil, /* 89 */
1423 st_Nil, /* 90 */
1424 st_Nil, /* 91 */
1425 st_Nil, /* 92 */
1426 st_Nil, /* 93 */
1427 st_Nil, /* 94 */
1428 st_Nil, /* 95 */
1429 st_Nil, /* 96 */
1430 st_Nil, /* 97 */
1431 st_Nil, /* 98 */
1432 st_Nil, /* 99 */
1433 st_Block, /* 100: C_BLOCK block start/end */
1434 st_Proc, /* 101: C_FCN function start/end */
1435 st_End, /* 102: C_EOS end of struct/union/enum */
1436 st_File, /* 103: C_FILE file start */
1437 st_Nil, /* 104: C_LINE line number */
1438 st_Nil, /* 105: C_ALIAS combined type info */
1439 st_Nil, /* 106: C_HIDDEN ??? */
1440 };
1441
1442 /* Map COFF derived types to ECOFF type qualifiers. */
1443 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1444 tq_Nil, /* 0: DT_NON no more qualifiers */
1445 tq_Ptr, /* 1: DT_PTR pointer */
1446 tq_Proc, /* 2: DT_FCN function */
1447 tq_Array, /* 3: DT_ARY array */
1448 };
1449
1450
1451 /* Keep track of different sized allocation requests. */
1452 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1453
1454 \f
1455 /* Pointers and such to the original symbol table that is read in. */
1456 static struct filehdr orig_file_header; /* global object file header */
1457
1458 static HDRR orig_sym_hdr; /* symbolic header on input */
1459 static char *orig_linenum; /* line numbers */
1460 static DNR *orig_dense; /* dense numbers */
1461 static PDR *orig_procs; /* procedures */
1462 static SYMR *orig_local_syms; /* local symbols */
1463 static OPTR *orig_opt_syms; /* optimization symbols */
1464 static AUXU *orig_aux_syms; /* auxiliary symbols */
1465 static char *orig_local_strs; /* local strings */
1466 static char *orig_ext_strs; /* external strings */
1467 static FDR *orig_files; /* file descriptors */
1468 static symint_t *orig_rfds; /* relative file desc's */
1469 static EXTR *orig_ext_syms; /* external symbols */
1470
1471 /* Macros to convert an index into a given object within the original
1472 symbol table. */
1473 #define CHECK(num,max,str) \
1474 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1475
1476 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1477 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1478 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1479 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1480 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1481 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1482 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1483 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1484 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1485 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1486 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1487
1488 /* Various other statics. */
1489 static HDRR symbolic_header; /* symbolic header */
1490 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1491 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1492 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1493 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1494 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1495 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1496 static unsigned long file_offset = 0; /* current file offset */
1497 static unsigned long max_file_offset = 0; /* maximum file offset */
1498 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1499 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1500 static char *progname = (char *) 0; /* program name for errors */
1501 static const char *input_name = "stdin"; /* name of input file */
1502 static char *object_name = (char *) 0; /* tmp. name of object file */
1503 static char *obj_in_name = (char *) 0; /* name of input object file */
1504 static char *cur_line_start = (char *) 0; /* current line read in */
1505 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1506 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1507 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1508 static long line_number = 0; /* current input line number */
1509 static int debug = 0; /* trace functions */
1510 static int version = 0; /* print version # */
1511 static int verbose = 0;
1512 static int had_errors = 0; /* != 0 if errors were found */
1513 static int rename_output = 0; /* != 0 if rename output file*/
1514 static int delete_input = 0; /* != 0 if delete input after done */
1515 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1516
1517
1518 /* Pseudo symbol to use when putting stabs into the symbol table. */
1519 #ifndef STABS_SYMBOL
1520 #define STABS_SYMBOL "@stabs"
1521 #endif
1522
1523 static const char stabs_symbol[] = STABS_SYMBOL;
1524
1525 \f
1526 /* Forward reference for functions. See the definition for more details. */
1527
1528 #ifndef STATIC
1529 #define STATIC static
1530 #endif
1531
1532 STATIC int out_of_bounds (symint_t, symint_t, const char *, int);
1533 STATIC shash_t *hash_string (const char *, Ptrdiff_t, shash_t **, symint_t *);
1534 STATIC symint_t add_string (varray_t *, shash_t **, const char *, const char *,
1535 shash_t **);
1536 STATIC symint_t add_local_symbol (const char *, const char *, st_t, sc_t,
1537 symint_t, symint_t);
1538 STATIC symint_t add_ext_symbol (EXTR *, int);
1539 STATIC symint_t add_aux_sym_symint (symint_t);
1540 STATIC symint_t add_aux_sym_rndx (int, symint_t);
1541 STATIC symint_t add_aux_sym_tir (type_info_t *, hash_state_t, thash_t **);
1542 STATIC tag_t * get_tag (const char *, const char *, symint_t, bt_t);
1543 STATIC void add_unknown_tag (tag_t *);
1544 STATIC void add_procedure (const char *, const char *);
1545 STATIC void initialize_init_file (void);
1546 STATIC void add_file (const char *, const char *);
1547 STATIC void add_bytes (varray_t *, char *, Size_t);
1548 STATIC void add_varray_page (varray_t *);
1549 STATIC void update_headers (void);
1550 STATIC void write_varray (varray_t *, off_t, const char *);
1551 STATIC void write_object (void);
1552 STATIC const char *st_to_string (st_t);
1553 STATIC const char *sc_to_string (sc_t);
1554 STATIC char *read_line (void);
1555 STATIC void parse_input (void);
1556 STATIC void mark_stabs (const char *);
1557 STATIC void parse_begin (const char *);
1558 STATIC void parse_bend (const char *);
1559 STATIC void parse_def (const char *);
1560 STATIC void parse_end (const char *);
1561 STATIC void parse_ent (const char *);
1562 STATIC void parse_file (const char *);
1563 STATIC void parse_stabs_common (const char *, const char *, const char *);
1564 STATIC void parse_stabs (const char *);
1565 STATIC void parse_stabn (const char *);
1566 STATIC page_t *read_seek (Size_t, off_t, const char *);
1567 STATIC void copy_object (void);
1568
1569 STATIC void catch_signal (int) ATTRIBUTE_NORETURN;
1570 STATIC page_t *allocate_page (void);
1571 STATIC page_t *allocate_multiple_pages (Size_t);
1572 STATIC void free_multiple_pages (page_t *, Size_t);
1573
1574 #ifndef MALLOC_CHECK
1575 STATIC page_t *allocate_cluster (Size_t);
1576 #endif
1577
1578 STATIC forward_t *allocate_forward (void);
1579 STATIC scope_t *allocate_scope (void);
1580 STATIC shash_t *allocate_shash (void);
1581 STATIC tag_t *allocate_tag (void);
1582 STATIC thash_t *allocate_thash (void);
1583 STATIC thead_t *allocate_thead (void);
1584 STATIC vlinks_t *allocate_vlinks (void);
1585
1586 STATIC void free_forward (forward_t *);
1587 STATIC void free_scope (scope_t *);
1588 STATIC void free_tag (tag_t *);
1589 STATIC void free_thead (thead_t *);
1590
1591 extern char *optarg;
1592 extern int optind;
1593 extern int opterr;
1594 \f
1595 /* List of assembler pseudo ops and beginning sequences that need
1596 special actions. Someday, this should be a hash table, and such,
1597 but for now a linear list of names and calls to memcmp will
1598 do...... */
1599
1600 typedef struct _pseudo_ops {
1601 const char *const name; /* pseudo-op in ascii */
1602 const int len; /* length of name to compare */
1603 void (*const func) (const char *); /* function to handle line */
1604 } pseudo_ops_t;
1605
1606 static const pseudo_ops_t pseudo_ops[] = {
1607 { "#.def", sizeof("#.def")-1, parse_def },
1608 { "#.begin", sizeof("#.begin")-1, parse_begin },
1609 { "#.bend", sizeof("#.bend")-1, parse_bend },
1610 { ".end", sizeof(".end")-1, parse_end },
1611 { ".ent", sizeof(".ent")-1, parse_ent },
1612 { ".file", sizeof(".file")-1, parse_file },
1613 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1614 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1615 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1616 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1617 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1618 };
1619
1620 \f
1621 /* Command line options for getopt_long. */
1622
1623 static const struct option options[] =
1624 {
1625 { "version", 0, 0, 'V' },
1626 { "verbose", 0, 0, 'v' },
1627 { 0, 0, 0, 0 }
1628 };
1629 \f
1630 /* Add a page to a varray object. */
1631
1632 STATIC void
1633 add_varray_page (varray_t *vp)
1634 {
1635 vlinks_t *new_links = allocate_vlinks ();
1636
1637 #ifdef MALLOC_CHECK
1638 if (vp->object_size > 1)
1639 new_links->datum = xcalloc (1, vp->object_size);
1640 else
1641 #endif
1642 new_links->datum = allocate_page ();
1643
1644 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1645 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1646
1647 new_links->start_index = vp->num_allocated;
1648 vp->objects_last_page = 0;
1649
1650 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1651 vp->first = vp->last = new_links;
1652 else
1653 { /* 2nd or greater allocation */
1654 new_links->prev = vp->last;
1655 vp->last->next = new_links;
1656 vp->last = new_links;
1657 }
1658 }
1659
1660 \f
1661 /* Compute hash code (from tree.c) */
1662
1663 #define HASHBITS 30
1664
1665 STATIC shash_t *
1666 hash_string (const char *text, Ptrdiff_t hash_len, shash_t **hash_tbl,
1667 symint_t *ret_hash_index)
1668 {
1669 unsigned long hi;
1670 Ptrdiff_t i;
1671 shash_t *ptr;
1672 int first_ch = *text;
1673
1674 hi = hash_len;
1675 for (i = 0; i < hash_len; i++)
1676 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1677
1678 hi &= (1 << HASHBITS) - 1;
1679 hi %= SHASH_SIZE;
1680
1681 if (ret_hash_index != (symint_t *) 0)
1682 *ret_hash_index = hi;
1683
1684 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1685 if ((symint_t) hash_len == ptr->len
1686 && first_ch == ptr->string[0]
1687 && memcmp (text, ptr->string, hash_len) == 0)
1688 break;
1689
1690 return ptr;
1691 }
1692
1693 \f
1694 /* Add a string (and null pad) to one of the string tables. A
1695 consequence of hashing strings, is that we don't let strings cross
1696 page boundaries. The extra nulls will be ignored. VP is a string
1697 virtual array, HASH_TBL a pointer to the hash table, the string
1698 starts at START and the position one byte after the string is given
1699 with END_P1, the resulting hash pointer is returned in RET_HASH. */
1700
1701 STATIC symint_t
1702 add_string (varray_t *vp, shash_t **hash_tbl, const char *start,
1703 const char *end_p1, shash_t **ret_hash)
1704 {
1705 Ptrdiff_t len = end_p1 - start;
1706 shash_t *hash_ptr;
1707 symint_t hi;
1708
1709 if (len >= (Ptrdiff_t) PAGE_USIZE)
1710 fatal ("string too big (%ld bytes)", (long) len);
1711
1712 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1713 if (hash_ptr == (shash_t *) 0)
1714 {
1715 char *p;
1716
1717 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1718 {
1719 vp->num_allocated
1720 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1721 add_varray_page (vp);
1722 }
1723
1724 hash_ptr = allocate_shash ();
1725 hash_ptr->next = hash_tbl[hi];
1726 hash_tbl[hi] = hash_ptr;
1727
1728 hash_ptr->len = len;
1729 hash_ptr->indx = vp->num_allocated;
1730 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1731
1732 vp->objects_last_page += len+1;
1733 vp->num_allocated += len+1;
1734
1735 while (len-- > 0)
1736 *p++ = *start++;
1737
1738 *p = '\0';
1739 }
1740
1741 if (ret_hash != (shash_t **) 0)
1742 *ret_hash = hash_ptr;
1743
1744 return hash_ptr->indx;
1745 }
1746
1747 \f
1748 /* Add a local symbol. The symbol string starts at STR_START and the
1749 first byte after it is marked by STR_END_P1. The symbol has type
1750 TYPE and storage class STORAGE and value VALUE. INDX is an index
1751 to local/aux. symbols. */
1752
1753 STATIC symint_t
1754 add_local_symbol (const char *str_start, const char *str_end_p1, st_t type,
1755 sc_t storage, symint_t value, symint_t indx)
1756 {
1757 symint_t ret;
1758 SYMR *psym;
1759 scope_t *pscope;
1760 thead_t *ptag_head;
1761 tag_t *ptag;
1762 tag_t *ptag_next;
1763 varray_t *vp = &cur_file_ptr->symbols;
1764 int scope_delta = 0;
1765 shash_t *hash_ptr = (shash_t *) 0;
1766
1767 if (vp->objects_last_page == vp->objects_per_page)
1768 add_varray_page (vp);
1769
1770 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1771
1772 psym->value = value;
1773 psym->st = (unsigned) type;
1774 psym->sc = (unsigned) storage;
1775 psym->index = indx;
1776 psym->iss = (str_start == (const char *) 0)
1777 ? 0
1778 : add_string (&cur_file_ptr->strings,
1779 &cur_file_ptr->shash_head[0],
1780 str_start,
1781 str_end_p1,
1782 &hash_ptr);
1783
1784 ret = vp->num_allocated++;
1785
1786 if (MIPS_IS_STAB (psym))
1787 return ret;
1788
1789 /* Save the symbol within the hash table if this is a static
1790 item, and it has a name. */
1791 if (hash_ptr != (shash_t *) 0
1792 && (type == st_Global || type == st_Static || type == st_Label
1793 || type == st_Proc || type == st_StaticProc))
1794 hash_ptr->sym_ptr = psym;
1795
1796 /* push or pop a scope if appropriate. */
1797 switch (type)
1798 {
1799 default:
1800 break;
1801
1802 case st_File: /* beginning of file */
1803 case st_Proc: /* procedure */
1804 case st_StaticProc: /* static procedure */
1805 case st_Block: /* begin scope */
1806 pscope = allocate_scope ();
1807 pscope->prev = cur_file_ptr->cur_scope;
1808 pscope->lsym = psym;
1809 pscope->lnumber = ret;
1810 pscope->type = type;
1811 cur_file_ptr->cur_scope = pscope;
1812
1813 if (type != st_File)
1814 scope_delta = 1;
1815
1816 /* For every block type except file, struct, union, or
1817 enumeration blocks, push a level on the tag stack. We omit
1818 file types, so that tags can span file boundaries. */
1819 if (type != st_File && storage != sc_Info)
1820 {
1821 ptag_head = allocate_thead ();
1822 ptag_head->first_tag = 0;
1823 ptag_head->prev = cur_tag_head;
1824 cur_tag_head = ptag_head;
1825 }
1826 break;
1827
1828 case st_End:
1829 pscope = cur_file_ptr->cur_scope;
1830 if (pscope == (scope_t *) 0)
1831 error ("internal error, too many st_End's");
1832
1833 else
1834 {
1835 st_t begin_type = (st_t) pscope->lsym->st;
1836
1837 if (begin_type != st_File)
1838 scope_delta = -1;
1839
1840 /* Except for file, structure, union, or enumeration end
1841 blocks remove all tags created within this scope. */
1842 if (begin_type != st_File && storage != sc_Info)
1843 {
1844 ptag_head = cur_tag_head;
1845 cur_tag_head = ptag_head->prev;
1846
1847 for (ptag = ptag_head->first_tag;
1848 ptag != (tag_t *) 0;
1849 ptag = ptag_next)
1850 {
1851 if (ptag->forward_ref != (forward_t *) 0)
1852 add_unknown_tag (ptag);
1853
1854 ptag_next = ptag->same_block;
1855 ptag->hash_ptr->tag_ptr = ptag->same_name;
1856 free_tag (ptag);
1857 }
1858
1859 free_thead (ptag_head);
1860 }
1861
1862 cur_file_ptr->cur_scope = pscope->prev;
1863 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1864
1865 if (storage != sc_Info)
1866 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1867
1868 if (begin_type == st_File || begin_type == st_Block)
1869 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1870
1871 /* Functions push two or more aux words as follows:
1872 1st word: index+1 of the end symbol
1873 2nd word: type of the function (plus any aux words needed).
1874 Also, tie the external pointer back to the function begin symbol. */
1875 else
1876 {
1877 symint_t type;
1878 pscope->lsym->index = add_aux_sym_symint (ret+1);
1879 type = add_aux_sym_tir (&last_func_type_info,
1880 hash_no,
1881 &cur_file_ptr->thash_head[0]);
1882 if (last_func_eptr)
1883 {
1884 last_func_eptr->ifd = cur_file_ptr->file_index;
1885
1886 /* The index for an external st_Proc symbol is the index
1887 of the st_Proc symbol in the local symbol table. */
1888 last_func_eptr->asym.index = psym->index;
1889 }
1890 }
1891
1892 free_scope (pscope);
1893 }
1894 }
1895
1896 cur_file_ptr->nested_scopes += scope_delta;
1897
1898 if (debug && type != st_File
1899 && (debug > 2 || type == st_Block || type == st_End
1900 || type == st_Proc || type == st_StaticProc))
1901 {
1902 const char *sc_str = sc_to_string (storage);
1903 const char *st_str = st_to_string (type);
1904 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1905
1906 fprintf (stderr,
1907 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1908 value, depth, sc_str);
1909
1910 if (str_start && str_end_p1 - str_start > 0)
1911 fprintf (stderr, " st= %-11s name= %.*s\n",
1912 st_str, (int) (str_end_p1 - str_start), str_start);
1913 else
1914 {
1915 Size_t len = strlen (st_str);
1916 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1917 }
1918 }
1919
1920 return ret;
1921 }
1922
1923 \f
1924 /* Add an external symbol with symbol pointer ESYM and file index
1925 IFD. */
1926
1927 STATIC symint_t
1928 add_ext_symbol (EXTR *esym, int ifd)
1929 {
1930 const char *str_start; /* first byte in string */
1931 const char *str_end_p1; /* first byte after string */
1932 EXTR *psym;
1933 varray_t *vp = &ext_symbols;
1934 shash_t *hash_ptr = (shash_t *) 0;
1935
1936 str_start = ORIG_ESTRS (esym->asym.iss);
1937 str_end_p1 = str_start + strlen (str_start);
1938
1939 if (debug > 1)
1940 {
1941 long value = esym->asym.value;
1942 const char *sc_str = sc_to_string (esym->asym.sc);
1943 const char *st_str = st_to_string (esym->asym.st);
1944
1945 fprintf (stderr,
1946 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
1947 value, ifd, sc_str);
1948
1949 if (str_start && str_end_p1 - str_start > 0)
1950 fprintf (stderr, " st= %-11s name= %.*s\n",
1951 st_str, (int) (str_end_p1 - str_start), str_start);
1952 else
1953 fprintf (stderr, " st= %s\n", st_str);
1954 }
1955
1956 if (vp->objects_last_page == vp->objects_per_page)
1957 add_varray_page (vp);
1958
1959 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
1960
1961 *psym = *esym;
1962 psym->ifd = ifd;
1963 psym->asym.index = indexNil;
1964 psym->asym.iss = (str_start == (const char *) 0)
1965 ? 0
1966 : add_string (&ext_strings,
1967 &ext_str_hash[0],
1968 str_start,
1969 str_end_p1,
1970 &hash_ptr);
1971
1972 hash_ptr->esym_ptr = psym;
1973 return vp->num_allocated++;
1974 }
1975
1976 \f
1977 /* Add an auxiliary symbol (passing a symint). */
1978
1979 STATIC symint_t
1980 add_aux_sym_symint (symint_t aux_word)
1981 {
1982 AUXU *aux_ptr;
1983 efdr_t *file_ptr = cur_file_ptr;
1984 varray_t *vp = &file_ptr->aux_syms;
1985
1986 if (vp->objects_last_page == vp->objects_per_page)
1987 add_varray_page (vp);
1988
1989 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
1990 aux_ptr->isym = aux_word;
1991
1992 return vp->num_allocated++;
1993 }
1994
1995
1996 /* Add an auxiliary symbol (passing a file/symbol index combo). */
1997
1998 STATIC symint_t
1999 add_aux_sym_rndx (int file_index, symint_t sym_index)
2000 {
2001 AUXU *aux_ptr;
2002 efdr_t *file_ptr = cur_file_ptr;
2003 varray_t *vp = &file_ptr->aux_syms;
2004
2005 if (vp->objects_last_page == vp->objects_per_page)
2006 add_varray_page (vp);
2007
2008 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2009 aux_ptr->rndx.rfd = file_index;
2010 aux_ptr->rndx.index = sym_index;
2011
2012 return vp->num_allocated++;
2013 }
2014
2015 \f
2016 /* Add an auxiliary symbol (passing the basic type and possibly
2017 type qualifiers). */
2018
2019 STATIC symint_t
2020 add_aux_sym_tir (type_info_t *t, hash_state_t state, thash_t **hash_tbl)
2021 {
2022 AUXU *aux_ptr;
2023 efdr_t *file_ptr = cur_file_ptr;
2024 varray_t *vp = &file_ptr->aux_syms;
2025 static AUXU init_aux;
2026 symint_t ret;
2027 int i;
2028 AUXU aux;
2029
2030 aux = init_aux;
2031 aux.ti.bt = (int) t->basic_type;
2032 aux.ti.continued = 0;
2033 aux.ti.fBitfield = t->bitfield;
2034
2035 aux.ti.tq0 = (int) t->type_qualifiers[0];
2036 aux.ti.tq1 = (int) t->type_qualifiers[1];
2037 aux.ti.tq2 = (int) t->type_qualifiers[2];
2038 aux.ti.tq3 = (int) t->type_qualifiers[3];
2039 aux.ti.tq4 = (int) t->type_qualifiers[4];
2040 aux.ti.tq5 = (int) t->type_qualifiers[5];
2041
2042
2043 /* For anything that adds additional information, we must not hash,
2044 so check here, and reset our state. */
2045
2046 if (state != hash_no
2047 && (t->type_qualifiers[0] == tq_Array
2048 || t->type_qualifiers[1] == tq_Array
2049 || t->type_qualifiers[2] == tq_Array
2050 || t->type_qualifiers[3] == tq_Array
2051 || t->type_qualifiers[4] == tq_Array
2052 || t->type_qualifiers[5] == tq_Array
2053 || t->basic_type == bt_Struct
2054 || t->basic_type == bt_Union
2055 || t->basic_type == bt_Enum
2056 || t->bitfield
2057 || t->num_dims > 0))
2058 state = hash_no;
2059
2060 /* See if we can hash this type, and save some space, but some types
2061 can't be hashed (because they contain arrays or continuations),
2062 and others can be put into the hash list, but cannot use existing
2063 types because other aux entries precede this one. */
2064
2065 if (state != hash_no)
2066 {
2067 thash_t *hash_ptr;
2068 symint_t hi;
2069
2070 hi = aux.isym & ((1 << HASHBITS) - 1);
2071 hi %= THASH_SIZE;
2072
2073 for (hash_ptr = hash_tbl[hi];
2074 hash_ptr != (thash_t *) 0;
2075 hash_ptr = hash_ptr->next)
2076 {
2077 if (aux.isym == hash_ptr->type.isym)
2078 break;
2079 }
2080
2081 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2082 return hash_ptr->indx;
2083
2084 if (hash_ptr == (thash_t *) 0)
2085 {
2086 hash_ptr = allocate_thash ();
2087 hash_ptr->next = hash_tbl[hi];
2088 hash_ptr->type = aux;
2089 hash_ptr->indx = vp->num_allocated;
2090 hash_tbl[hi] = hash_ptr;
2091 }
2092 }
2093
2094 /* Everything is set up, add the aux symbol. */
2095 if (vp->objects_last_page == vp->objects_per_page)
2096 add_varray_page (vp);
2097
2098 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2099 *aux_ptr = aux;
2100
2101 ret = vp->num_allocated++;
2102
2103 /* Add bitfield length if it exists.
2104
2105 NOTE: Mips documentation claims bitfield goes at the end of the
2106 AUX record, but the DECstation compiler emits it here.
2107 (This would only make a difference for enum bitfields.)
2108
2109 Also note: We use the last size given since gcc may emit 2
2110 for an enum bitfield. */
2111
2112 if (t->bitfield)
2113 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2114
2115
2116 /* Add tag information if needed. Structure, union, and enum
2117 references add 2 aux symbols: a [file index, symbol index]
2118 pointer to the structure type, and the current file index. */
2119
2120 if (t->basic_type == bt_Struct
2121 || t->basic_type == bt_Union
2122 || t->basic_type == bt_Enum)
2123 {
2124 symint_t file_index = t->tag_ptr->ifd;
2125 symint_t sym_index = t->tag_ptr->indx;
2126
2127 if (t->unknown_tag)
2128 {
2129 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2130 (void) add_aux_sym_symint ((symint_t)-1);
2131 }
2132 else if (sym_index != indexNil)
2133 {
2134 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2135 (void) add_aux_sym_symint (file_index);
2136 }
2137 else
2138 {
2139 forward_t *forward_ref = allocate_forward ();
2140
2141 forward_ref->type_ptr = aux_ptr;
2142 forward_ref->next = t->tag_ptr->forward_ref;
2143 t->tag_ptr->forward_ref = forward_ref;
2144
2145 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2146 forward_ref->index_ptr
2147 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2148
2149 (void) add_aux_sym_symint (file_index);
2150 forward_ref->ifd_ptr
2151 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2152 }
2153 }
2154
2155 /* Add information about array bounds if they exist. */
2156 for (i = 0; i < t->num_dims; i++)
2157 {
2158 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2159 cur_file_ptr->int_type);
2160
2161 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2162 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2163 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2164 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2165 ? 0
2166 : (t->sizes[i] * 8) / t->dimensions[i]);
2167 };
2168
2169 /* NOTE: Mips documentation claims that the bitfield width goes here.
2170 But it needs to be emitted earlier. */
2171
2172 return ret;
2173 }
2174
2175 \f
2176 /* Add a tag to the tag table (unless it already exists). */
2177
2178 STATIC tag_t *
2179 get_tag (const char *tag_start, /* 1st byte of tag name */
2180 const char *tag_end_p1, /* 1st byte after tag name */
2181 symint_t indx, /* index of tag start block */
2182 bt_t basic_type) /* bt_Struct, bt_Union, or bt_Enum */
2183
2184 {
2185 shash_t *hash_ptr;
2186 tag_t *tag_ptr;
2187 hash_ptr = hash_string (tag_start,
2188 tag_end_p1 - tag_start,
2189 &tag_hash[0],
2190 (symint_t *) 0);
2191
2192 if (hash_ptr != (shash_t *) 0
2193 && hash_ptr->tag_ptr != (tag_t *) 0)
2194 {
2195 tag_ptr = hash_ptr->tag_ptr;
2196 if (indx != indexNil)
2197 {
2198 tag_ptr->basic_type = basic_type;
2199 tag_ptr->ifd = cur_file_ptr->file_index;
2200 tag_ptr->indx = indx;
2201 }
2202 return tag_ptr;
2203 }
2204
2205 (void) add_string (&tag_strings,
2206 &tag_hash[0],
2207 tag_start,
2208 tag_end_p1,
2209 &hash_ptr);
2210
2211 tag_ptr = allocate_tag ();
2212 tag_ptr->forward_ref = (forward_t *) 0;
2213 tag_ptr->hash_ptr = hash_ptr;
2214 tag_ptr->same_name = hash_ptr->tag_ptr;
2215 tag_ptr->basic_type = basic_type;
2216 tag_ptr->indx = indx;
2217 tag_ptr->ifd = (indx == indexNil
2218 ? (symint_t) -1 : cur_file_ptr->file_index);
2219 tag_ptr->same_block = cur_tag_head->first_tag;
2220
2221 cur_tag_head->first_tag = tag_ptr;
2222 hash_ptr->tag_ptr = tag_ptr;
2223
2224 return tag_ptr;
2225 }
2226
2227 \f
2228 /* Add an unknown {struct, union, enum} tag. */
2229
2230 STATIC void
2231 add_unknown_tag (tag_t *ptag)
2232 {
2233 shash_t *hash_ptr = ptag->hash_ptr;
2234 char *name_start = hash_ptr->string;
2235 char *name_end_p1 = name_start + hash_ptr->len;
2236 forward_t *f_next = ptag->forward_ref;
2237 forward_t *f_cur;
2238 int sym_index;
2239 int file_index = cur_file_ptr->file_index;
2240
2241 if (debug > 1)
2242 {
2243 const char *agg_type = "{unknown aggregate type}";
2244 switch (ptag->basic_type)
2245 {
2246 case bt_Struct: agg_type = "struct"; break;
2247 case bt_Union: agg_type = "union"; break;
2248 case bt_Enum: agg_type = "enum"; break;
2249 default: break;
2250 }
2251
2252 fprintf (stderr, "unknown %s %.*s found\n",
2253 agg_type, (int) hash_ptr->len, name_start);
2254 }
2255
2256 sym_index = add_local_symbol (name_start,
2257 name_end_p1,
2258 st_Block,
2259 sc_Info,
2260 (symint_t) 0,
2261 (symint_t) 0);
2262
2263 (void) add_local_symbol (name_start,
2264 name_end_p1,
2265 st_End,
2266 sc_Info,
2267 (symint_t) 0,
2268 (symint_t) 0);
2269
2270 while (f_next != (forward_t *) 0)
2271 {
2272 f_cur = f_next;
2273 f_next = f_next->next;
2274
2275 f_cur->ifd_ptr->isym = file_index;
2276 f_cur->index_ptr->rndx.index = sym_index;
2277
2278 free_forward (f_cur);
2279 }
2280
2281 return;
2282 }
2283
2284 \f
2285 /* Add a procedure to the current file's list of procedures, and record
2286 this is the current procedure. If the assembler created a PDR for
2287 this procedure, use that to initialize the current PDR. */
2288
2289 STATIC void
2290 add_procedure (const char *func_start, /* 1st byte of func name */
2291 const char *func_end_p1) /* 1st byte after func name */
2292 {
2293 PDR *new_proc_ptr;
2294 efdr_t *file_ptr = cur_file_ptr;
2295 varray_t *vp = &file_ptr->procs;
2296 symint_t value = 0;
2297 st_t proc_type = st_Proc;
2298 shash_t *shash_ptr = hash_string (func_start,
2299 func_end_p1 - func_start,
2300 &orig_str_hash[0],
2301 (symint_t *) 0);
2302
2303 if (debug)
2304 fputc ('\n', stderr);
2305
2306 if (vp->objects_last_page == vp->objects_per_page)
2307 add_varray_page (vp);
2308
2309 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2310
2311 vp->num_allocated++;
2312
2313
2314 /* Did the assembler create this procedure? If so, get the PDR information. */
2315 cur_oproc_ptr = (PDR *) 0;
2316 if (shash_ptr != (shash_t *) 0)
2317 {
2318 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2319 SYMR *sym_ptr = shash_ptr->sym_ptr;
2320
2321 if (old_proc_ptr != (PDR *) 0
2322 && sym_ptr != (SYMR *) 0
2323 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2324 {
2325 cur_oproc_begin = sym_ptr;
2326 cur_oproc_end = shash_ptr->end_ptr;
2327 value = sym_ptr->value;
2328
2329 cur_oproc_ptr = old_proc_ptr;
2330 proc_type = (st_t) sym_ptr->st;
2331 *new_proc_ptr = *old_proc_ptr; /* initialize */
2332 }
2333 }
2334
2335 if (cur_oproc_ptr == (PDR *) 0)
2336 error ("did not find a PDR block for %.*s",
2337 (int) (func_end_p1 - func_start), func_start);
2338
2339 /* Determine the start of symbols. */
2340 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2341
2342 /* Push the start of the function. */
2343 (void) add_local_symbol (func_start, func_end_p1,
2344 proc_type, sc_Text,
2345 value,
2346 (symint_t) 0);
2347 }
2348
2349 \f
2350 /* Initialize the init_file structure. */
2351
2352 STATIC void
2353 initialize_init_file (void)
2354 {
2355 union {
2356 unsigned char c[4];
2357 int i;
2358 } endian_test;
2359
2360 memset (&init_file, 0, sizeof (init_file));
2361
2362 init_file.fdr.lang = langC;
2363 init_file.fdr.fMerge = 1;
2364 init_file.fdr.glevel = GLEVEL_2;
2365
2366 /* mips-tfile doesn't attempt to perform byte swapping and always writes
2367 out integers in its native ordering. For cross-compilers, this need
2368 not be the same as either the host or the target. The simplest thing
2369 to do is skip the configury and perform an introspective test. */
2370 /* ??? Despite the name, mips-tfile is currently only used on alpha/Tru64
2371 and would/may require significant work to be used in cross-compiler
2372 configurations, so we could simply admit defeat and hard code this as
2373 little-endian, i.e. init_file.fdr.fBigendian = 0. */
2374 endian_test.i = 1;
2375 if (endian_test.c[3])
2376 init_file.fdr.fBigendian = 1;
2377
2378 INITIALIZE_VARRAY (&init_file.strings, char);
2379 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2380 INITIALIZE_VARRAY (&init_file.procs, PDR);
2381 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2382
2383 init_file_initialized = 1;
2384 }
2385
2386 /* Add a new filename, and set up all of the file relative
2387 virtual arrays (strings, symbols, aux syms, etc.). Record
2388 where the current file structure lives. */
2389
2390 STATIC void
2391 add_file (const char *file_start, /* first byte in string */
2392 const char *file_end_p1) /* first byte after string */
2393 {
2394 static char zero_bytes[2] = { '\0', '\0' };
2395
2396 Ptrdiff_t len = file_end_p1 - file_start;
2397 int first_ch = *file_start;
2398 efdr_t *file_ptr;
2399
2400 if (debug)
2401 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2402
2403 /* See if the file has already been created. */
2404 for (file_ptr = first_file;
2405 file_ptr != (efdr_t *) 0;
2406 file_ptr = file_ptr->next_file)
2407 {
2408 if (first_ch == file_ptr->name[0]
2409 && file_ptr->name[len] == '\0'
2410 && memcmp (file_start, file_ptr->name, len) == 0)
2411 {
2412 cur_file_ptr = file_ptr;
2413 break;
2414 }
2415 }
2416
2417 /* If this is a new file, create it. */
2418 if (file_ptr == (efdr_t *) 0)
2419 {
2420 if (file_desc.objects_last_page == file_desc.objects_per_page)
2421 add_varray_page (&file_desc);
2422
2423 if (! init_file_initialized)
2424 initialize_init_file ();
2425
2426 file_ptr = cur_file_ptr
2427 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2428 *file_ptr = init_file;
2429
2430 file_ptr->file_index = file_desc.num_allocated++;
2431
2432 /* Allocate the string hash table. */
2433 file_ptr->shash_head = (shash_t **) allocate_page ();
2434
2435 /* Make sure 0 byte in string table is null */
2436 add_string (&file_ptr->strings,
2437 &file_ptr->shash_head[0],
2438 &zero_bytes[0],
2439 &zero_bytes[0],
2440 (shash_t **) 0);
2441
2442 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2443 fatal ("filename goes over one page boundary");
2444
2445 /* Push the start of the filename. We assume that the filename
2446 will be stored at string offset 1. */
2447 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2448 (symint_t) 0, (symint_t) 0);
2449 file_ptr->fdr.rss = 1;
2450 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2451 file_ptr->name_len = file_end_p1 - file_start;
2452
2453 /* Update the linked list of file descriptors. */
2454 *last_file_ptr = file_ptr;
2455 last_file_ptr = &file_ptr->next_file;
2456
2457 /* Add void & int types to the file (void should be first to catch
2458 errant 0's within the index fields). */
2459 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2460 hash_yes,
2461 &cur_file_ptr->thash_head[0]);
2462
2463 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2464 hash_yes,
2465 &cur_file_ptr->thash_head[0]);
2466 }
2467 }
2468
2469 \f
2470 /* Add a stream of random bytes to a varray. */
2471
2472 STATIC void
2473 add_bytes (varray_t *vp, /* virtual array to add too */
2474 char *input_ptr, /* start of the bytes */
2475 Size_t nitems) /* # items to move */
2476 {
2477 Size_t move_items;
2478 Size_t move_bytes;
2479 char *ptr;
2480
2481 while (nitems > 0)
2482 {
2483 if (vp->objects_last_page >= vp->objects_per_page)
2484 add_varray_page (vp);
2485
2486 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2487 move_items = vp->objects_per_page - vp->objects_last_page;
2488 if (move_items > nitems)
2489 move_items = nitems;
2490
2491 move_bytes = move_items * vp->object_size;
2492 nitems -= move_items;
2493
2494 if (move_bytes >= 32)
2495 {
2496 (void) memcpy (ptr, input_ptr, move_bytes);
2497 input_ptr += move_bytes;
2498 }
2499 else
2500 {
2501 while (move_bytes-- > 0)
2502 *ptr++ = *input_ptr++;
2503 }
2504 }
2505 }
2506
2507 \f
2508 /* Convert storage class to string. */
2509
2510 STATIC const char *
2511 sc_to_string (sc_t storage_class)
2512 {
2513 switch (storage_class)
2514 {
2515 case sc_Nil: return "Nil,";
2516 case sc_Text: return "Text,";
2517 case sc_Data: return "Data,";
2518 case sc_Bss: return "Bss,";
2519 case sc_Register: return "Register,";
2520 case sc_Abs: return "Abs,";
2521 case sc_Undefined: return "Undefined,";
2522 case sc_CdbLocal: return "CdbLocal,";
2523 case sc_Bits: return "Bits,";
2524 case sc_CdbSystem: return "CdbSystem,";
2525 case sc_RegImage: return "RegImage,";
2526 case sc_Info: return "Info,";
2527 case sc_UserStruct: return "UserStruct,";
2528 case sc_SData: return "SData,";
2529 case sc_SBss: return "SBss,";
2530 case sc_RData: return "RData,";
2531 case sc_Var: return "Var,";
2532 case sc_Common: return "Common,";
2533 case sc_SCommon: return "SCommon,";
2534 case sc_VarRegister: return "VarRegister,";
2535 case sc_Variant: return "Variant,";
2536 case sc_SUndefined: return "SUndefined,";
2537 case sc_Init: return "Init,";
2538 case sc_Max: return "Max,";
2539 }
2540
2541 return "???,";
2542 }
2543
2544 \f
2545 /* Convert symbol type to string. */
2546
2547 STATIC const char *
2548 st_to_string (st_t symbol_type)
2549 {
2550 switch (symbol_type)
2551 {
2552 case st_Nil: return "Nil,";
2553 case st_Global: return "Global,";
2554 case st_Static: return "Static,";
2555 case st_Param: return "Param,";
2556 case st_Local: return "Local,";
2557 case st_Label: return "Label,";
2558 case st_Proc: return "Proc,";
2559 case st_Block: return "Block,";
2560 case st_End: return "End,";
2561 case st_Member: return "Member,";
2562 case st_Typedef: return "Typedef,";
2563 case st_File: return "File,";
2564 case st_RegReloc: return "RegReloc,";
2565 case st_Forward: return "Forward,";
2566 case st_StaticProc: return "StaticProc,";
2567 case st_Constant: return "Constant,";
2568 case st_Str: return "String,";
2569 case st_Number: return "Number,";
2570 case st_Expr: return "Expr,";
2571 case st_Type: return "Type,";
2572 case st_Max: return "Max,";
2573 }
2574
2575 return "???,";
2576 }
2577
2578 \f
2579 /* Read a line from standard input, and return the start of the buffer
2580 (which is grows if the line is too big). We split lines at the
2581 semi-colon, and return each logical line independently. */
2582
2583 STATIC char *
2584 read_line (void)
2585 {
2586 static int line_split_p = 0;
2587 int string_p = 0;
2588 int comment_p = 0;
2589 int ch;
2590 char *ptr;
2591
2592 if (cur_line_start == (char *) 0)
2593 { /* allocate initial page */
2594 cur_line_start = (char *) allocate_page ();
2595 cur_line_alloc = PAGE_SIZE;
2596 }
2597
2598 if (!line_split_p)
2599 line_number++;
2600
2601 line_split_p = 0;
2602 cur_line_nbytes = 0;
2603
2604 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2605 {
2606 if (++cur_line_nbytes >= cur_line_alloc-1)
2607 {
2608 int num_pages = cur_line_alloc / PAGE_SIZE;
2609 char *old_buffer = cur_line_start;
2610
2611 cur_line_alloc += PAGE_SIZE;
2612 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2613 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2614
2615 ptr = cur_line_start + cur_line_nbytes - 1;
2616 }
2617
2618 if (ch == '\n')
2619 {
2620 *ptr++ = '\n';
2621 *ptr = '\0';
2622 cur_line_ptr = cur_line_start;
2623 return cur_line_ptr;
2624 }
2625
2626 else if (ch == '\0')
2627 error ("null character found in input");
2628
2629 else if (!comment_p)
2630 {
2631 if (ch == '"')
2632 string_p = !string_p;
2633
2634 else if (ch == '#')
2635 comment_p++;
2636
2637 else if (ch == ';' && !string_p)
2638 {
2639 line_split_p = 1;
2640 *ptr++ = '\n';
2641 *ptr = '\0';
2642 cur_line_ptr = cur_line_start;
2643 return cur_line_ptr;
2644 }
2645 }
2646 }
2647
2648 if (ferror (stdin))
2649 pfatal_with_name (input_name);
2650
2651 cur_line_ptr = (char *) 0;
2652 return (char *) 0;
2653 }
2654
2655 \f
2656 /* Parse #.begin directives which have a label as the first argument
2657 which gives the location of the start of the block. */
2658
2659 STATIC void
2660 parse_begin (const char *start)
2661 {
2662 const char *end_p1; /* end of label */
2663 int ch;
2664 shash_t *hash_ptr; /* hash pointer to lookup label */
2665
2666 if (cur_file_ptr == (efdr_t *) 0)
2667 {
2668 error ("#.begin directive without a preceding .file directive");
2669 return;
2670 }
2671
2672 if (cur_proc_ptr == (PDR *) 0)
2673 {
2674 error ("#.begin directive without a preceding .ent directive");
2675 return;
2676 }
2677
2678 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2679 ;
2680
2681 hash_ptr = hash_string (start,
2682 end_p1 - start,
2683 &orig_str_hash[0],
2684 (symint_t *) 0);
2685
2686 if (hash_ptr == (shash_t *) 0)
2687 {
2688 error ("label %.*s not found for #.begin",
2689 (int) (end_p1 - start), start);
2690 return;
2691 }
2692
2693 if (cur_oproc_begin == (SYMR *) 0)
2694 {
2695 error ("procedure table %.*s not found for #.begin",
2696 (int) (end_p1 - start), start);
2697 return;
2698 }
2699
2700 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2701 st_Block, sc_Text,
2702 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2703 (symint_t) 0);
2704 }
2705
2706 \f
2707 /* Parse #.bend directives which have a label as the first argument
2708 which gives the location of the end of the block. */
2709
2710 STATIC void
2711 parse_bend (const char *start)
2712 {
2713 const char *end_p1; /* end of label */
2714 int ch;
2715 shash_t *hash_ptr; /* hash pointer to lookup label */
2716
2717 if (cur_file_ptr == (efdr_t *) 0)
2718 {
2719 error ("#.begin directive without a preceding .file directive");
2720 return;
2721 }
2722
2723 if (cur_proc_ptr == (PDR *) 0)
2724 {
2725 error ("#.bend directive without a preceding .ent directive");
2726 return;
2727 }
2728
2729 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2730 ;
2731
2732 hash_ptr = hash_string (start,
2733 end_p1 - start,
2734 &orig_str_hash[0],
2735 (symint_t *) 0);
2736
2737 if (hash_ptr == (shash_t *) 0)
2738 {
2739 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2740 return;
2741 }
2742
2743 if (cur_oproc_begin == (SYMR *) 0)
2744 {
2745 error ("procedure table %.*s not found for #.bend",
2746 (int) (end_p1 - start), start);
2747 return;
2748 }
2749
2750 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2751 st_End, sc_Text,
2752 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2753 (symint_t) 0);
2754 }
2755
2756 \f
2757 /* Parse #.def directives, which are contain standard COFF subdirectives
2758 to describe the debugging format. These subdirectives include:
2759
2760 .scl specify storage class
2761 .val specify a value
2762 .endef specify end of COFF directives
2763 .type specify the type
2764 .size specify the size of an array
2765 .dim specify an array dimension
2766 .tag specify a tag for a struct, union, or enum. */
2767
2768 STATIC void
2769 parse_def (const char *name_start)
2770 {
2771 const char *dir_start; /* start of current directive*/
2772 const char *dir_end_p1; /* end+1 of current directive*/
2773 const char *arg_start; /* start of current argument */
2774 const char *arg_end_p1; /* end+1 of current argument */
2775 const char *name_end_p1; /* end+1 of label */
2776 const char *tag_start = 0; /* start of tag name */
2777 const char *tag_end_p1 = 0; /* end+1 of tag name */
2778 sc_t storage_class = sc_Nil;
2779 st_t symbol_type = st_Nil;
2780 type_info_t t;
2781 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2782 int is_function = 0; /* != 0 if function */
2783 symint_t value = 0;
2784 symint_t indx = cur_file_ptr->void_type;
2785 int error_line = 0;
2786 symint_t arg_number;
2787 symint_t temp_array[ N_TQ ];
2788 int arg_was_number;
2789 int ch, i;
2790 Ptrdiff_t len;
2791
2792 static int inside_enumeration = 0; /* is this an enumeration? */
2793
2794
2795 /* Initialize the type information. */
2796 t = type_info_init;
2797
2798
2799 /* Search for the end of the name being defined. */
2800 /* Allow spaces and such in names for G++ templates, which produce stabs
2801 that look like:
2802
2803 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2804
2805 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2806 ;
2807
2808 if (ch == '\0')
2809 {
2810 error_line = __LINE__;
2811 saber_stop ();
2812 goto bomb_out;
2813 }
2814
2815 /* Parse the remaining subdirectives now. */
2816 dir_start = name_end_p1+1;
2817 for (;;)
2818 {
2819 while ((ch = *dir_start) == ' ' || ch == '\t')
2820 ++dir_start;
2821
2822 if (ch != '.')
2823 {
2824 error_line = __LINE__;
2825 saber_stop ();
2826 goto bomb_out;
2827 }
2828
2829 /* Are we done? */
2830 if (dir_start[1] == 'e'
2831 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2832 break;
2833
2834 /* Pick up the subdirective now. */
2835 for (dir_end_p1 = dir_start+1;
2836 (ch = *dir_end_p1) != ' ' && ch != '\t';
2837 dir_end_p1++)
2838 {
2839 if (ch == '\0' || ISSPACE (ch))
2840 {
2841 error_line = __LINE__;
2842 saber_stop ();
2843 goto bomb_out;
2844 }
2845 }
2846
2847 /* Pick up the subdirective argument now. */
2848 arg_was_number = arg_number = 0;
2849 arg_end_p1 = 0;
2850 arg_start = dir_end_p1+1;
2851 ch = *arg_start;
2852 while (ch == ' ' || ch == '\t')
2853 ch = *++arg_start;
2854
2855 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2856 {
2857 int ch2;
2858 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2859 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2860 arg_was_number++;
2861 }
2862
2863 else if (ch == '\0' || ISSPACE (ch))
2864 {
2865 error_line = __LINE__;
2866 saber_stop ();
2867 goto bomb_out;
2868 }
2869
2870 if (!arg_was_number)
2871 {
2872 /* Allow spaces and such in names for G++ templates. */
2873 for (arg_end_p1 = arg_start+1;
2874 (ch = *arg_end_p1) != ';' && ch != '\0';
2875 arg_end_p1++)
2876 ;
2877
2878 if (ch == '\0')
2879 {
2880 error_line = __LINE__;
2881 saber_stop ();
2882 goto bomb_out;
2883 }
2884 }
2885
2886 /* Classify the directives now. */
2887 len = dir_end_p1 - dir_start;
2888 switch (dir_start[1])
2889 {
2890 default:
2891 error_line = __LINE__;
2892 saber_stop ();
2893 goto bomb_out;
2894
2895 case 'd':
2896 if (len == sizeof (".dim")-1
2897 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2898 && arg_was_number)
2899 {
2900 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2901
2902 *t_ptr = arg_number;
2903 while (*arg_end_p1 == ',' && arg_was_number)
2904 {
2905 arg_start = arg_end_p1+1;
2906 ch = *arg_start;
2907 while (ch == ' ' || ch == '\t')
2908 ch = *++arg_start;
2909
2910 arg_was_number = 0;
2911 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2912 {
2913 int ch2;
2914 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2915 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2916 arg_was_number++;
2917
2918 if (t_ptr == &temp_array[0])
2919 {
2920 error_line = __LINE__;
2921 saber_stop ();
2922 goto bomb_out;
2923 }
2924
2925 *--t_ptr = arg_number;
2926 }
2927 }
2928
2929 /* Reverse order of dimensions. */
2930 while (t_ptr <= &temp_array[ N_TQ-1 ])
2931 {
2932 if (t.num_dims >= N_TQ-1)
2933 {
2934 error_line = __LINE__;
2935 saber_stop ();
2936 goto bomb_out;
2937 }
2938
2939 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2940 }
2941 break;
2942 }
2943 else
2944 {
2945 error_line = __LINE__;
2946 saber_stop ();
2947 goto bomb_out;
2948 }
2949
2950
2951 case 's':
2952 if (len == sizeof (".scl")-1
2953 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
2954 && arg_was_number
2955 && arg_number < ((symint_t) C_MAX))
2956 {
2957 /* If the symbol is a static or external, we have
2958 already gotten the appropriate type and class, so
2959 make sure we don't override those values. This is
2960 needed because there are some type and classes that
2961 are not in COFF, such as short data, etc. */
2962 if (symbol_type == st_Nil)
2963 {
2964 symbol_type = map_coff_sym_type[arg_number];
2965 storage_class = map_coff_storage [arg_number];
2966 }
2967 break;
2968 }
2969
2970 else if (len == sizeof (".size")-1
2971 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
2972 && arg_was_number)
2973 {
2974 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2975
2976 *t_ptr = arg_number;
2977 while (*arg_end_p1 == ',' && arg_was_number)
2978 {
2979 arg_start = arg_end_p1+1;
2980 ch = *arg_start;
2981 while (ch == ' ' || ch == '\t')
2982 ch = *++arg_start;
2983
2984 arg_was_number = 0;
2985 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2986 {
2987 int ch2;
2988 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2989 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2990 arg_was_number++;
2991
2992 if (t_ptr == &temp_array[0])
2993 {
2994 error_line = __LINE__;
2995 saber_stop ();
2996 goto bomb_out;
2997 }
2998
2999 *--t_ptr = arg_number;
3000 }
3001 }
3002
3003 /* Reverse order of sizes. */
3004 while (t_ptr <= &temp_array[ N_TQ-1 ])
3005 {
3006 if (t.num_sizes >= N_TQ-1)
3007 {
3008 error_line = __LINE__;
3009 saber_stop ();
3010 goto bomb_out;
3011 }
3012
3013 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3014 }
3015 break;
3016 }
3017
3018 else
3019 {
3020 error_line = __LINE__;
3021 saber_stop ();
3022 goto bomb_out;
3023 }
3024
3025
3026 case 't':
3027 if (len == sizeof (".type")-1
3028 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3029 && arg_was_number)
3030 {
3031 tq_t *tq_ptr = &t.type_qualifiers[0];
3032
3033 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3034 t.basic_type = map_coff_types [(int) t.orig_type];
3035 for (i = N_TQ-1; i >= 0; i--)
3036 {
3037 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3038 & N_TMASK);
3039
3040 if (dt != (int) DT_NON)
3041 *tq_ptr++ = map_coff_derived_type [dt];
3042 }
3043
3044 /* If this is a function, ignore it, so that we don't get
3045 two entries (one from the .ent, and one for the .def
3046 that precedes it). Save the type information so that
3047 the end block can properly add it after the begin block
3048 index. For MIPS knows what reason, we must strip off
3049 the function type at this point. */
3050 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3051 {
3052 is_function = 1;
3053 tq_ptr[-1] = tq_Nil;
3054 }
3055
3056 break;
3057 }
3058
3059 else if (len == sizeof (".tag")-1
3060 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3061 {
3062 tag_start = arg_start;
3063 tag_end_p1 = arg_end_p1;
3064 break;
3065 }
3066
3067 else
3068 {
3069 error_line = __LINE__;
3070 saber_stop ();
3071 goto bomb_out;
3072 }
3073
3074
3075 case 'v':
3076 if (len == sizeof (".val")-1
3077 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3078 {
3079 if (arg_was_number)
3080 value = arg_number;
3081
3082 /* If the value is not an integer value, it must be the
3083 name of a static or global item. Look up the name in
3084 the original symbol table to pick up the storage
3085 class, symbol type, etc. */
3086 else
3087 {
3088 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3089 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3090
3091 ext_hash_ptr = hash_string (arg_start,
3092 arg_end_p1 - arg_start,
3093 &ext_str_hash[0],
3094 (symint_t *) 0);
3095
3096 if (ext_hash_ptr != (shash_t *) 0
3097 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3098 eptr = ext_hash_ptr->esym_ptr;
3099
3100 orig_hash_ptr = hash_string (arg_start,
3101 arg_end_p1 - arg_start,
3102 &orig_str_hash[0],
3103 (symint_t *) 0);
3104
3105 if ((orig_hash_ptr == (shash_t *) 0
3106 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3107 && eptr == (EXTR *) 0)
3108 {
3109 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3110 (int) (arg_end_p1 - arg_start),
3111 arg_start);
3112 value = 0;
3113 }
3114 else
3115 {
3116 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3117 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3118 ? orig_hash_ptr->sym_ptr
3119 : &eptr->asym;
3120
3121 symbol_type = (st_t) ptr->st;
3122 storage_class = (sc_t) ptr->sc;
3123 value = ptr->value;
3124 }
3125 }
3126 break;
3127 }
3128 else
3129 {
3130 error_line = __LINE__;
3131 saber_stop ();
3132 goto bomb_out;
3133 }
3134 }
3135
3136 /* Set up to find next directive. */
3137 dir_start = arg_end_p1 + 1;
3138 }
3139
3140
3141 if (storage_class == sc_Bits)
3142 {
3143 t.bitfield = 1;
3144 t.extra_sizes = 1;
3145 }
3146 else
3147 t.extra_sizes = 0;
3148
3149 if (t.num_dims > 0)
3150 {
3151 int num_real_sizes = t.num_sizes - t.extra_sizes;
3152 int diff = t.num_dims - num_real_sizes;
3153 int i = t.num_dims - 1;
3154 int j;
3155
3156 if (num_real_sizes != 1 || diff < 0)
3157 {
3158 error_line = __LINE__;
3159 saber_stop ();
3160 goto bomb_out;
3161 }
3162
3163 /* If this is an array, make sure the same number of dimensions
3164 and sizes were passed, creating extra sizes for multiply
3165 dimensioned arrays if not passed. */
3166
3167 if (diff)
3168 {
3169 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3170 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3171
3172 t.num_sizes = i + 1;
3173 for ( i--; i >= 0; i-- )
3174 {
3175 if (t.dimensions[ i+1 ])
3176 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3177 else
3178 t.sizes[ i ] = t.sizes[ i+1 ];
3179 }
3180 }
3181 }
3182
3183 /* Except for enumeration members & begin/ending of scopes, put the
3184 type word in the aux. symbol table. */
3185
3186 if (symbol_type == st_Block || symbol_type == st_End)
3187 indx = 0;
3188
3189 else if (inside_enumeration)
3190 indx = cur_file_ptr->void_type;
3191
3192 else
3193 {
3194 if (t.basic_type == bt_Struct
3195 || t.basic_type == bt_Union
3196 || t.basic_type == bt_Enum)
3197 {
3198 if (tag_start == (char *) 0)
3199 {
3200 error ("no tag specified for %.*s",
3201 (int) (name_end_p1 - name_start),
3202 name_start);
3203 return;
3204 }
3205
3206 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3207 t.basic_type);
3208 }
3209
3210 if (is_function)
3211 {
3212 last_func_type_info = t;
3213 last_func_eptr = eptr;
3214 return;
3215 }
3216
3217 indx = add_aux_sym_tir (&t,
3218 hash_yes,
3219 &cur_file_ptr->thash_head[0]);
3220 }
3221
3222
3223 /* If this is an external or static symbol, update the appropriate
3224 external symbol. */
3225
3226 if (eptr != (EXTR *) 0
3227 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3228 {
3229 eptr->ifd = cur_file_ptr->file_index;
3230 eptr->asym.index = indx;
3231 }
3232
3233
3234 /* Do any last minute adjustments that are necessary. */
3235 switch (symbol_type)
3236 {
3237 default:
3238 break;
3239
3240
3241 /* For the beginning of structs, unions, and enumerations, the
3242 size info needs to be passed in the value field. */
3243
3244 case st_Block:
3245 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3246 {
3247 error_line = __LINE__;
3248 saber_stop ();
3249 goto bomb_out;
3250 }
3251
3252 else
3253 value = t.sizes[0];
3254
3255 inside_enumeration = (t.orig_type == T_ENUM);
3256 break;
3257
3258
3259 /* For the end of structs, unions, and enumerations, omit the
3260 name which is always ".eos". This needs to be done last, so
3261 that any error reporting above gives the correct name. */
3262
3263 case st_End:
3264 name_start = name_end_p1 = 0;
3265 value = inside_enumeration = 0;
3266 break;
3267
3268
3269 /* Members of structures and unions that aren't bitfields, need
3270 to adjust the value from a byte offset to a bit offset.
3271 Members of enumerations do not have the value adjusted, and
3272 can be distinguished by indx == indexNil. For enumerations,
3273 update the maximum enumeration value. */
3274
3275 case st_Member:
3276 if (!t.bitfield && !inside_enumeration)
3277 value *= 8;
3278
3279 break;
3280 }
3281
3282
3283 /* Add the symbol, except for global symbols outside of functions,
3284 for which the external symbol table is fine enough. */
3285
3286 if (eptr == (EXTR *) 0
3287 || eptr->asym.st == (int) st_Nil
3288 || cur_proc_ptr != (PDR *) 0)
3289 {
3290 symint_t isym = add_local_symbol (name_start, name_end_p1,
3291 symbol_type, storage_class,
3292 value,
3293 indx);
3294
3295 /* Deal with struct, union, and enum tags. */
3296 if (symbol_type == st_Block)
3297 {
3298 /* Create or update the tag information. */
3299 tag_t *tag_ptr = get_tag (name_start,
3300 name_end_p1,
3301 isym,
3302 t.basic_type);
3303
3304 /* If there are any forward references, fill in the appropriate
3305 file and symbol indexes. */
3306
3307 symint_t file_index = cur_file_ptr->file_index;
3308 forward_t *f_next = tag_ptr->forward_ref;
3309 forward_t *f_cur;
3310
3311 while (f_next != (forward_t *) 0)
3312 {
3313 f_cur = f_next;
3314 f_next = f_next->next;
3315
3316 f_cur->ifd_ptr->isym = file_index;
3317 f_cur->index_ptr->rndx.index = isym;
3318
3319 free_forward (f_cur);
3320 }
3321
3322 tag_ptr->forward_ref = (forward_t *) 0;
3323 }
3324 }
3325
3326 /* Normal return */
3327 return;
3328
3329 /* Error return, issue message. */
3330 bomb_out:
3331 if (error_line)
3332 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3333 else
3334 error ("compiler error, badly formed #.def");
3335
3336 return;
3337 }
3338
3339 \f
3340 /* Parse .end directives. */
3341
3342 STATIC void
3343 parse_end (const char *start)
3344 {
3345 const char *start_func, *end_func_p1;
3346 int ch;
3347 symint_t value;
3348 FDR *orig_fdr;
3349
3350 if (cur_file_ptr == (efdr_t *) 0)
3351 {
3352 error (".end directive without a preceding .file directive");
3353 return;
3354 }
3355
3356 if (cur_proc_ptr == (PDR *) 0)
3357 {
3358 error (".end directive without a preceding .ent directive");
3359 return;
3360 }
3361
3362 /* Get the function name, skipping whitespace. */
3363 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3364 ;
3365
3366 ch = *start_func;
3367 if (!IS_ASM_IDENT (ch))
3368 {
3369 error (".end directive has no name");
3370 return;
3371 }
3372
3373 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3374 ;
3375
3376
3377 /* Get the value field for creating the end from the original object
3378 file (which we find by locating the procedure start, and using the
3379 pointer to the end+1 block and backing up. The index points to a
3380 two word aux. symbol, whose first word is the index of the end
3381 symbol, and the second word is the type of the function return
3382 value. */
3383
3384 orig_fdr = cur_file_ptr->orig_fdr;
3385 value = 0;
3386 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3387 value = cur_oproc_end->value;
3388
3389 else
3390 error ("cannot find .end block for %.*s",
3391 (int) (end_func_p1 - start_func), start_func);
3392
3393 (void) add_local_symbol (start_func, end_func_p1,
3394 st_End, sc_Text,
3395 value,
3396 (symint_t) 0);
3397
3398 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3399 }
3400
3401 \f
3402 /* Parse .ent directives. */
3403
3404 STATIC void
3405 parse_ent (const char *start)
3406 {
3407 const char *start_func, *end_func_p1;
3408 int ch;
3409
3410 if (cur_file_ptr == (efdr_t *) 0)
3411 {
3412 error (".ent directive without a preceding .file directive");
3413 return;
3414 }
3415
3416 if (cur_proc_ptr != (PDR *) 0)
3417 {
3418 error ("second .ent directive found before .end directive");
3419 return;
3420 }
3421
3422 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3423 ;
3424
3425 ch = *start_func;
3426 if (!IS_ASM_IDENT (ch))
3427 {
3428 error (".ent directive has no name");
3429 return;
3430 }
3431
3432 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3433 ;
3434
3435 (void) add_procedure (start_func, end_func_p1);
3436 }
3437
3438 \f
3439 /* Parse .file directives. */
3440
3441 STATIC void
3442 parse_file (const char *start)
3443 {
3444 char *p;
3445 char *start_name, *end_name_p1;
3446
3447 (void) strtol (start, &p, 0);
3448 if (start == p
3449 || (start_name = strchr (p, '"')) == (char *) 0
3450 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3451 {
3452 error ("invalid .file directive");
3453 return;
3454 }
3455
3456 if (cur_proc_ptr != (PDR *) 0)
3457 {
3458 error ("no way to handle .file within .ent/.end section");
3459 return;
3460 }
3461
3462 add_file (start_name, end_name_p1);
3463 }
3464
3465 \f
3466 /* Make sure the @stabs symbol is emitted. */
3467
3468 static void
3469 mark_stabs (const char *start ATTRIBUTE_UNUSED)
3470 {
3471 if (!stabs_seen)
3472 {
3473 /* Add a dummy @stabs symbol. */
3474 stabs_seen = 1;
3475 (void) add_local_symbol (stabs_symbol,
3476 stabs_symbol + sizeof (stabs_symbol),
3477 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3478
3479 }
3480 }
3481
3482 \f
3483 /* Parse .stabs directives.
3484
3485 .stabs directives have five fields:
3486 "string" a string, encoding the type information.
3487 code a numeric code, defined in <stab.h>
3488 0 a zero
3489 0 a zero or line number
3490 value a numeric value or an address.
3491
3492 If the value is relocatable, we transform this into:
3493 iss points as an index into string space
3494 value value from lookup of the name
3495 st st from lookup of the name
3496 sc sc from lookup of the name
3497 index code|CODE_MASK
3498
3499 If the value is not relocatable, we transform this into:
3500 iss points as an index into string space
3501 value value
3502 st st_Nil
3503 sc sc_Nil
3504 index code|CODE_MASK
3505
3506 .stabn directives have four fields (string is null):
3507 code a numeric code, defined in <stab.h>
3508 0 a zero
3509 0 a zero or a line number
3510 value a numeric value or an address. */
3511
3512 STATIC void
3513 parse_stabs_common (const char *string_start, /* start of string or NULL */
3514 const char *string_end, /* end+1 of string or NULL */
3515 const char *rest) /* rest of the directive. */
3516 {
3517 efdr_t *save_file_ptr = cur_file_ptr;
3518 symint_t code;
3519 symint_t value;
3520 char *p;
3521 st_t st;
3522 sc_t sc;
3523 int ch;
3524
3525 if (stabs_seen == 0)
3526 mark_stabs ("");
3527
3528 /* Read code from stabs. */
3529 if (!ISDIGIT (*rest))
3530 {
3531 error ("invalid .stabs/.stabn directive, code is non-numeric");
3532 return;
3533 }
3534
3535 code = strtol (rest, &p, 0);
3536
3537 /* Line number stabs are handled differently, since they have two values,
3538 the line number and the address of the label. We use the index field
3539 (aka code) to hold the line number, and the value field to hold the
3540 address. The symbol type is st_Label, which should be different from
3541 the other stabs, so that gdb can recognize it. */
3542
3543 if (code == (int) N_SLINE)
3544 {
3545 SYMR *sym_ptr, dummy_symr;
3546 shash_t *shash_ptr;
3547
3548 /* Skip ,0, */
3549 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3550 {
3551 error ("invalid line number .stabs/.stabn directive");
3552 return;
3553 }
3554
3555 code = strtol (p+3, &p, 0);
3556 ch = *++p;
3557 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3558 {
3559 error ("invalid line number .stabs/.stabn directive");
3560 return;
3561 }
3562
3563 dummy_symr.index = code;
3564 if (dummy_symr.index != code)
3565 {
3566 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3567 code);
3568
3569 return;
3570 }
3571
3572 shash_ptr = hash_string (p,
3573 strlen (p) - 1,
3574 &orig_str_hash[0],
3575 (symint_t *) 0);
3576
3577 if (shash_ptr == (shash_t *) 0
3578 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3579 {
3580 error ("invalid .stabs/.stabn directive, value not found");
3581 return;
3582 }
3583
3584 if ((st_t) sym_ptr->st != st_Label)
3585 {
3586 error ("invalid line number .stabs/.stabn directive");
3587 return;
3588 }
3589
3590 st = st_Label;
3591 sc = (sc_t) sym_ptr->sc;
3592 value = sym_ptr->value;
3593 }
3594 else
3595 {
3596 /* Skip ,<num>,<num>, */
3597 if (*p++ != ',')
3598 goto failure;
3599 for (; ISDIGIT (*p); p++)
3600 ;
3601 if (*p++ != ',')
3602 goto failure;
3603 for (; ISDIGIT (*p); p++)
3604 ;
3605 if (*p++ != ',')
3606 goto failure;
3607 ch = *p;
3608 if (!IS_ASM_IDENT (ch) && ch != '-')
3609 {
3610 failure:
3611 error ("invalid .stabs/.stabn directive, bad character");
3612 return;
3613 }
3614
3615 if (ISDIGIT (ch) || ch == '-')
3616 {
3617 st = st_Nil;
3618 sc = sc_Nil;
3619 value = strtol (p, &p, 0);
3620 if (*p != '\n')
3621 {
3622 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3623 return;
3624 }
3625 }
3626 else if (!IS_ASM_IDENT (ch))
3627 {
3628 error ("invalid .stabs/.stabn directive, bad character");
3629 return;
3630 }
3631 else
3632 {
3633 SYMR *sym_ptr;
3634 shash_t *shash_ptr;
3635 const char *start, *end_p1;
3636
3637 start = p;
3638 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3639 {
3640 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3641 end_p1 = start + strlen (start) - 1;
3642 }
3643
3644 shash_ptr = hash_string (start,
3645 end_p1 - start,
3646 &orig_str_hash[0],
3647 (symint_t *) 0);
3648
3649 if (shash_ptr == (shash_t *) 0
3650 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3651 {
3652 shash_ptr = hash_string (start,
3653 end_p1 - start,
3654 &ext_str_hash[0],
3655 (symint_t *) 0);
3656
3657 if (shash_ptr == (shash_t *) 0
3658 || shash_ptr->esym_ptr == (EXTR *) 0)
3659 {
3660 error ("invalid .stabs/.stabn directive, value not found");
3661 return;
3662 }
3663 else
3664 sym_ptr = &(shash_ptr->esym_ptr->asym);
3665 }
3666
3667 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3668 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3669 {
3670 sc = scNil;
3671 st = stNil;
3672 }
3673 else
3674 {
3675 sc = (sc_t) sym_ptr->sc;
3676 st = (st_t) sym_ptr->st;
3677 }
3678 value = sym_ptr->value;
3679
3680 ch = *end_p1++;
3681 if (ch != '\n')
3682 {
3683 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3684 || ((ch != '+') && (ch != '-')))
3685 {
3686 error ("invalid .stabs/.stabn directive, badly formed value");
3687 return;
3688 }
3689 if (ch == '+')
3690 value += strtol (end_p1, &p, 0);
3691 else if (ch == '-')
3692 value -= strtol (end_p1, &p, 0);
3693
3694 if (*p != '\n')
3695 {
3696 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3697 return;
3698 }
3699 }
3700 }
3701 code = MIPS_MARK_STAB (code);
3702 }
3703
3704 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3705 /* Restore normal file type. */
3706 cur_file_ptr = save_file_ptr;
3707 }
3708
3709
3710 STATIC void
3711 parse_stabs (const char *start)
3712 {
3713 const char *end = strchr (start+1, '"');
3714
3715 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3716 {
3717 error ("invalid .stabs directive, no string");
3718 return;
3719 }
3720
3721 parse_stabs_common (start+1, end, end+2);
3722 }
3723
3724
3725 STATIC void
3726 parse_stabn (const char *start)
3727 {
3728 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3729 }
3730
3731 \f
3732 /* Parse the input file, and write the lines to the output file
3733 if needed. */
3734
3735 STATIC void
3736 parse_input (void)
3737 {
3738 char *p;
3739 Size_t i;
3740 thead_t *ptag_head;
3741 tag_t *ptag;
3742 tag_t *ptag_next;
3743
3744 if (debug)
3745 fprintf (stderr, "\tinput\n");
3746
3747 /* Add a dummy scope block around the entire compilation unit for
3748 structures defined outside of blocks. */
3749 ptag_head = allocate_thead ();
3750 ptag_head->first_tag = 0;
3751 ptag_head->prev = cur_tag_head;
3752 cur_tag_head = ptag_head;
3753
3754 while ((p = read_line ()) != (char *) 0)
3755 {
3756 /* Skip leading blanks. */
3757 while (ISSPACE ((unsigned char)*p))
3758 p++;
3759
3760 /* See if it's a directive we handle. If so, dispatch handler. */
3761 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3762 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3763 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3764 {
3765 p += pseudo_ops[i].len; /* skip to first argument */
3766 while (ISSPACE ((unsigned char)*p))
3767 p++;
3768
3769 (*pseudo_ops[i].func)( p );
3770 break;
3771 }
3772 }
3773
3774 /* Process any tags at global level. */
3775 ptag_head = cur_tag_head;
3776 cur_tag_head = ptag_head->prev;
3777
3778 for (ptag = ptag_head->first_tag;
3779 ptag != (tag_t *) 0;
3780 ptag = ptag_next)
3781 {
3782 if (ptag->forward_ref != (forward_t *) 0)
3783 add_unknown_tag (ptag);
3784
3785 ptag_next = ptag->same_block;
3786 ptag->hash_ptr->tag_ptr = ptag->same_name;
3787 free_tag (ptag);
3788 }
3789
3790 free_thead (ptag_head);
3791
3792 }
3793
3794 \f
3795 /* Update the global headers with the final offsets in preparation
3796 to write out the .T file. */
3797
3798 STATIC void
3799 update_headers (void)
3800 {
3801 symint_t i;
3802 efdr_t *file_ptr;
3803
3804 /* Set up the symbolic header. */
3805 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3806 symbolic_header.magic = orig_sym_hdr.magic;
3807 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3808
3809 /* Set up global counts. */
3810 symbolic_header.issExtMax = ext_strings.num_allocated;
3811 symbolic_header.idnMax = dense_num.num_allocated;
3812 symbolic_header.ifdMax = file_desc.num_allocated;
3813 symbolic_header.iextMax = ext_symbols.num_allocated;
3814 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3815 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3816 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3817 symbolic_header.crfd = orig_sym_hdr.crfd;
3818
3819
3820 /* Loop through each file, figuring out how many local syms,
3821 line numbers, etc. there are. Also, put out end symbol
3822 for the filename. */
3823
3824 for (file_ptr = first_file;
3825 file_ptr != (efdr_t *) 0;
3826 file_ptr = file_ptr->next_file)
3827 {
3828 SYMR *sym_start;
3829 SYMR *sym;
3830 SYMR *sym_end_p1;
3831 FDR *fd_ptr = file_ptr->orig_fdr;
3832
3833 cur_file_ptr = file_ptr;
3834
3835 /* Copy st_Static symbols from the original local symbol table if
3836 they did not get added to the new local symbol table.
3837 This happens with stabs-in-ecoff or if the source file is
3838 compiled without debugging. */
3839 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3840 sym_end_p1 = sym_start + fd_ptr->csym;
3841 for (sym = sym_start; sym < sym_end_p1; sym++)
3842 {
3843 if ((st_t) sym->st == st_Static)
3844 {
3845 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3846 Size_t len = strlen (str);
3847 shash_t *hash_ptr;
3848
3849 /* Ignore internal labels. */
3850 if (str[0] == '$' && str[1] == 'L')
3851 continue;
3852 hash_ptr = hash_string (str,
3853 (Ptrdiff_t) len,
3854 &file_ptr->shash_head[0],
3855 (symint_t *) 0);
3856 if (hash_ptr == (shash_t *) 0)
3857 {
3858 (void) add_local_symbol (str, str + len,
3859 (st_t) sym->st, (sc_t) sym->sc,
3860 (symint_t) sym->value,
3861 (symint_t) indexNil);
3862 }
3863 }
3864 }
3865 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3866 st_End, sc_Text,
3867 (symint_t) 0,
3868 (symint_t) 0);
3869
3870 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3871 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3872 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3873
3874 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3875 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3876 symbolic_header.isymMax += file_ptr->fdr.csym;
3877
3878 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3879 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3880 symbolic_header.iauxMax += file_ptr->fdr.caux;
3881
3882 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3883 file_ptr->fdr.issBase = symbolic_header.issMax;
3884 symbolic_header.issMax += file_ptr->fdr.cbSs;
3885 }
3886
3887 #ifndef ALIGN_SYMTABLE_OFFSET
3888 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3889 #endif
3890
3891 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3892 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3893 if (i > 0)
3894 {
3895 symbolic_header.cbLineOffset = file_offset;
3896 file_offset += i;
3897 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3898 }
3899
3900 i = symbolic_header.ioptMax; /* optimization symbols */
3901 if (((long) i) > 0)
3902 {
3903 symbolic_header.cbOptOffset = file_offset;
3904 file_offset += i * sizeof (OPTR);
3905 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3906 }
3907
3908 i = symbolic_header.idnMax; /* dense numbers */
3909 if (i > 0)
3910 {
3911 symbolic_header.cbDnOffset = file_offset;
3912 file_offset += i * sizeof (DNR);
3913 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3914 }
3915
3916 i = symbolic_header.ipdMax; /* procedure tables */
3917 if (i > 0)
3918 {
3919 symbolic_header.cbPdOffset = file_offset;
3920 file_offset += i * sizeof (PDR);
3921 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3922 }
3923
3924 i = symbolic_header.isymMax; /* local symbols */
3925 if (i > 0)
3926 {
3927 symbolic_header.cbSymOffset = file_offset;
3928 file_offset += i * sizeof (SYMR);
3929 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3930 }
3931
3932 i = symbolic_header.iauxMax; /* aux syms. */
3933 if (i > 0)
3934 {
3935 symbolic_header.cbAuxOffset = file_offset;
3936 file_offset += i * sizeof (TIR);
3937 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3938 }
3939
3940 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3941 if (i > 0)
3942 {
3943 symbolic_header.cbSsOffset = file_offset;
3944 file_offset += i;
3945 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3946 }
3947
3948 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3949 if (i > 0)
3950 {
3951 symbolic_header.cbSsExtOffset = file_offset;
3952 file_offset += i;
3953 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3954 }
3955
3956 i = symbolic_header.ifdMax; /* file tables */
3957 if (i > 0)
3958 {
3959 symbolic_header.cbFdOffset = file_offset;
3960 file_offset += i * sizeof (FDR);
3961 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3962 }
3963
3964 i = symbolic_header.crfd; /* relative file descriptors */
3965 if (i > 0)
3966 {
3967 symbolic_header.cbRfdOffset = file_offset;
3968 file_offset += i * sizeof (symint_t);
3969 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3970 }
3971
3972 i = symbolic_header.iextMax; /* external symbols */
3973 if (i > 0)
3974 {
3975 symbolic_header.cbExtOffset = file_offset;
3976 file_offset += i * sizeof (EXTR);
3977 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3978 }
3979 }
3980
3981 \f
3982 /* Write out a varray at a given location. */
3983
3984 STATIC void
3985 write_varray (varray_t *vp, /* virtual array */
3986 off_t offset, /* offset to write varray to */
3987 const char *str) /* string to print out when tracing */
3988 {
3989 int num_write, sys_write;
3990 vlinks_t *ptr;
3991
3992 if (vp->num_allocated == 0)
3993 return;
3994
3995 if (debug)
3996 fprintf (stderr, "\twarray\tvp = %p, offset = %7lu, size = %7lu, %s\n",
3997 (void *) vp, (unsigned long) offset,
3998 vp->num_allocated * vp->object_size, str);
3999
4000 if (file_offset != (unsigned long) offset
4001 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4002 pfatal_with_name (object_name);
4003
4004 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4005 {
4006 num_write = (ptr->next == (vlinks_t *) 0)
4007 ? vp->objects_last_page * vp->object_size
4008 : vp->objects_per_page * vp->object_size;
4009
4010 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4011 if (sys_write <= 0)
4012 pfatal_with_name (object_name);
4013
4014 else if (sys_write != num_write)
4015 fatal ("wrote %d bytes to %s, system returned %d",
4016 num_write,
4017 object_name,
4018 sys_write);
4019
4020 file_offset += num_write;
4021 }
4022 }
4023
4024 \f
4025 /* Write out the symbol table in the object file. */
4026
4027 STATIC void
4028 write_object (void)
4029 {
4030 int sys_write;
4031 efdr_t *file_ptr;
4032 off_t offset;
4033
4034 if (debug)
4035 fprintf (stderr, "\n\twrite\tvp = %p, 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 = %p, offset = %7lu, size = %7lu, %s\n",
4066 (void *) &orig_linenum, (long) symbolic_header.cbLineOffset,
4067 (long) symbolic_header.cbLine, "Line numbers");
4068
4069 sys_write = fwrite (orig_linenum,
4070 1,
4071 symbolic_header.cbLine,
4072 object_stream);
4073
4074 if (sys_write <= 0)
4075 pfatal_with_name (object_name);
4076
4077 else if (sys_write != symbolic_header.cbLine)
4078 fatal ("wrote %ld bytes to %s, system returned %ld",
4079 (long) symbolic_header.cbLine,
4080 object_name,
4081 sys_write);
4082
4083 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4084 }
4085
4086 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4087 {
4088 long sys_write;
4089 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4090
4091 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4092 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4093 pfatal_with_name (object_name);
4094
4095 if (debug)
4096 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4097 (void *) &orig_opt_syms, (long) symbolic_header.cbOptOffset,
4098 num_write, "Optimizer symbols");
4099
4100 sys_write = fwrite (orig_opt_syms,
4101 1,
4102 num_write,
4103 object_stream);
4104
4105 if (sys_write <= 0)
4106 pfatal_with_name (object_name);
4107
4108 else if (sys_write != num_write)
4109 fatal ("wrote %ld bytes to %s, system returned %ld",
4110 num_write,
4111 object_name,
4112 sys_write);
4113
4114 file_offset = symbolic_header.cbOptOffset + num_write;
4115 }
4116
4117 if (symbolic_header.idnMax > 0) /* dense numbers */
4118 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4119
4120 if (symbolic_header.ipdMax > 0) /* procedure tables */
4121 {
4122 offset = symbolic_header.cbPdOffset;
4123 for (file_ptr = first_file;
4124 file_ptr != (efdr_t *) 0;
4125 file_ptr = file_ptr->next_file)
4126 {
4127 write_varray (&file_ptr->procs, offset, "Procedure tables");
4128 offset = file_offset;
4129 }
4130 }
4131
4132 if (symbolic_header.isymMax > 0) /* local symbols */
4133 {
4134 offset = symbolic_header.cbSymOffset;
4135 for (file_ptr = first_file;
4136 file_ptr != (efdr_t *) 0;
4137 file_ptr = file_ptr->next_file)
4138 {
4139 write_varray (&file_ptr->symbols, offset, "Local symbols");
4140 offset = file_offset;
4141 }
4142 }
4143
4144 if (symbolic_header.iauxMax > 0) /* aux symbols */
4145 {
4146 offset = symbolic_header.cbAuxOffset;
4147 for (file_ptr = first_file;
4148 file_ptr != (efdr_t *) 0;
4149 file_ptr = file_ptr->next_file)
4150 {
4151 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4152 offset = file_offset;
4153 }
4154 }
4155
4156 if (symbolic_header.issMax > 0) /* local strings */
4157 {
4158 offset = symbolic_header.cbSsOffset;
4159 for (file_ptr = first_file;
4160 file_ptr != (efdr_t *) 0;
4161 file_ptr = file_ptr->next_file)
4162 {
4163 write_varray (&file_ptr->strings, offset, "Local strings");
4164 offset = file_offset;
4165 }
4166 }
4167
4168 if (symbolic_header.issExtMax > 0) /* external strings */
4169 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4170
4171 if (symbolic_header.ifdMax > 0) /* file tables */
4172 {
4173 offset = symbolic_header.cbFdOffset;
4174 if (file_offset != (unsigned long) offset
4175 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4176 pfatal_with_name (object_name);
4177
4178 file_offset = offset;
4179 for (file_ptr = first_file;
4180 file_ptr != (efdr_t *) 0;
4181 file_ptr = file_ptr->next_file)
4182 {
4183 if (debug)
4184 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4185 (void *) &file_ptr->fdr, file_offset,
4186 (unsigned long) sizeof (FDR), "File header");
4187
4188 sys_write = fwrite (&file_ptr->fdr,
4189 1,
4190 sizeof (FDR),
4191 object_stream);
4192
4193 if (sys_write < 0)
4194 pfatal_with_name (object_name);
4195
4196 else if (sys_write != sizeof (FDR))
4197 fatal ("wrote %d bytes to %s, system returned %d",
4198 (int) sizeof (FDR),
4199 object_name,
4200 sys_write);
4201
4202 file_offset = offset += sizeof (FDR);
4203 }
4204 }
4205
4206 if (symbolic_header.crfd > 0) /* relative file descriptors */
4207 {
4208 long sys_write;
4209 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4210
4211 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4212 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4213 pfatal_with_name (object_name);
4214
4215 if (debug)
4216 fprintf (stderr, "\twrite\tvp = %p, offset = %7lu, size = %7lu, %s\n",
4217 (void *) &orig_rfds, (long) symbolic_header.cbRfdOffset,
4218 num_write, "Relative file descriptors");
4219
4220 sys_write = fwrite (orig_rfds,
4221 1,
4222 num_write,
4223 object_stream);
4224
4225 if (sys_write <= 0)
4226 pfatal_with_name (object_name);
4227
4228 else if (sys_write != (long) num_write)
4229 fatal ("wrote %lu bytes to %s, system returned %ld",
4230 num_write,
4231 object_name,
4232 sys_write);
4233
4234 file_offset = symbolic_header.cbRfdOffset + num_write;
4235 }
4236
4237 if (symbolic_header.issExtMax > 0) /* external symbols */
4238 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4239
4240 if (fclose (object_stream) != 0)
4241 pfatal_with_name (object_name);
4242 }
4243
4244 \f
4245 /* Read some bytes at a specified location, and return a pointer. */
4246
4247 STATIC page_t *
4248 read_seek (Size_t size, /* # bytes to read */
4249 off_t offset, /* offset to read at */
4250 const char *str) /* name for tracing */
4251 {
4252 page_t *ptr;
4253 long sys_read = 0;
4254
4255 if (size == 0) /* nothing to read */
4256 return (page_t *) 0;
4257
4258 if (debug)
4259 fprintf (stderr,
4260 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4261 (unsigned long) size, (unsigned long) offset, file_offset, str);
4262
4263 #ifndef MALLOC_CHECK
4264 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4265 #else
4266 ptr = xcalloc (1, size);
4267 #endif
4268
4269 /* If we need to seek, and the distance is nearby, just do some reads,
4270 to speed things up. */
4271 if (file_offset != (unsigned long) offset)
4272 {
4273 symint_t difference = offset - file_offset;
4274
4275 if (difference < 8)
4276 {
4277 char small_buffer[8];
4278
4279 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4280 if (sys_read <= 0)
4281 pfatal_with_name (obj_in_name);
4282
4283 if ((symint_t) sys_read != difference)
4284 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4285 (unsigned long) size,
4286 obj_in_name,
4287 sys_read);
4288 }
4289 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4290 pfatal_with_name (obj_in_name);
4291 }
4292
4293 sys_read = fread (ptr, 1, size, obj_in_stream);
4294 if (sys_read <= 0)
4295 pfatal_with_name (obj_in_name);
4296
4297 if (sys_read != (long) size)
4298 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4299 (unsigned long) size,
4300 obj_in_name,
4301 sys_read);
4302
4303 file_offset = offset + size;
4304
4305 if (file_offset > max_file_offset)
4306 max_file_offset = file_offset;
4307
4308 return ptr;
4309 }
4310
4311 \f
4312 /* Read the existing object file (and copy to the output object file
4313 if it is different from the input object file), and remove the old
4314 symbol table. */
4315
4316 STATIC void
4317 copy_object (void)
4318 {
4319 char buffer[ PAGE_SIZE ];
4320 int sys_read;
4321 int remaining;
4322 int num_write;
4323 int sys_write;
4324 int fd, es;
4325 int delete_ifd = 0;
4326 int *remap_file_number;
4327 struct stat stat_buf;
4328
4329 if (debug)
4330 fprintf (stderr, "\tcopy\n");
4331
4332 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4333 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4334 pfatal_with_name (obj_in_name);
4335
4336 sys_read = fread (&orig_file_header,
4337 1,
4338 sizeof (struct filehdr),
4339 obj_in_stream);
4340
4341 if (sys_read < 0)
4342 pfatal_with_name (obj_in_name);
4343
4344 else if (sys_read == 0 && feof (obj_in_stream))
4345 return; /* create a .T file sans file header */
4346
4347 else if (sys_read < (int) sizeof (struct filehdr))
4348 fatal ("wanted to read %d bytes from %s, system returned %d",
4349 (int) sizeof (struct filehdr),
4350 obj_in_name,
4351 sys_read);
4352
4353
4354 if (orig_file_header.f_nsyms != sizeof (HDRR))
4355 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4356 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4357
4358
4359 /* Read in the current symbolic header. */
4360 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4361 pfatal_with_name (input_name);
4362
4363 sys_read = fread (&orig_sym_hdr,
4364 1,
4365 sizeof (orig_sym_hdr),
4366 obj_in_stream);
4367
4368 if (sys_read < 0)
4369 pfatal_with_name (object_name);
4370
4371 else if (sys_read < (int) sizeof (struct filehdr))
4372 fatal ("wanted to read %d bytes from %s, system returned %d",
4373 (int) sizeof (struct filehdr),
4374 obj_in_name,
4375 sys_read);
4376
4377
4378 /* Read in each of the sections if they exist in the object file.
4379 We read things in the order the mips assembler creates the
4380 sections, so in theory no extra seeks are done.
4381
4382 For simplicity sake, round each read up to a page boundary,
4383 we may want to revisit this later.... */
4384
4385 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4386
4387 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4388 orig_linenum = (char *) read_seek (orig_sym_hdr.cbLine,
4389 orig_sym_hdr.cbLineOffset,
4390 "Line numbers");
4391
4392 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4393 orig_procs = (PDR *) read_seek (orig_sym_hdr.ipdMax * sizeof (PDR),
4394 orig_sym_hdr.cbPdOffset,
4395 "Procedure tables");
4396
4397 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4398 orig_local_syms = (SYMR *) read_seek (orig_sym_hdr.isymMax * sizeof (SYMR),
4399 orig_sym_hdr.cbSymOffset,
4400 "Local symbols");
4401
4402 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4403 orig_aux_syms = (AUXU *) read_seek (orig_sym_hdr.iauxMax * sizeof (AUXU),
4404 orig_sym_hdr.cbAuxOffset,
4405 "Aux. symbols");
4406
4407 if (orig_sym_hdr.issMax > 0) /* local strings */
4408 orig_local_strs = (char *) read_seek (orig_sym_hdr.issMax,
4409 orig_sym_hdr.cbSsOffset,
4410 "Local strings");
4411
4412 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4413 orig_ext_strs = (char *) read_seek (orig_sym_hdr.issExtMax,
4414 orig_sym_hdr.cbSsExtOffset,
4415 "External strings");
4416
4417 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4418 orig_files = (FDR *) read_seek (orig_sym_hdr.ifdMax * sizeof (FDR),
4419 orig_sym_hdr.cbFdOffset,
4420 "File tables");
4421
4422 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4423 orig_rfds = (symint_t *) read_seek (orig_sym_hdr.crfd * sizeof (symint_t),
4424 orig_sym_hdr.cbRfdOffset,
4425 "Relative file descriptors");
4426
4427 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4428 orig_ext_syms = (EXTR *) read_seek (orig_sym_hdr.iextMax * sizeof (EXTR),
4429 orig_sym_hdr.cbExtOffset,
4430 "External symbols");
4431
4432 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4433 {
4434 orig_dense = (DNR *) read_seek (orig_sym_hdr.idnMax * sizeof (DNR),
4435 orig_sym_hdr.cbDnOffset,
4436 "Dense numbers");
4437
4438 add_bytes (&dense_num, (char *) orig_dense, orig_sym_hdr.idnMax);
4439 }
4440
4441 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4442 orig_opt_syms = (OPTR *) read_seek (orig_sym_hdr.ioptMax * sizeof (OPTR),
4443 orig_sym_hdr.cbOptOffset,
4444 "Optimizer symbols");
4445
4446
4447
4448 /* The symbol table should be last. */
4449 if (max_file_offset != (unsigned long) stat_buf.st_size)
4450 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4451 max_file_offset,
4452 (long) stat_buf.st_size);
4453
4454
4455 /* If the first original file descriptor is a dummy which the assembler
4456 put out, but there are no symbols in it, skip it now. */
4457 if (orig_sym_hdr.ifdMax > 1
4458 && orig_files->csym == 2
4459 && orig_files->caux == 0)
4460 {
4461 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4462 char *suffix = strrchr (filename, '.');
4463
4464 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4465 delete_ifd = 1;
4466 }
4467
4468
4469 /* Create array to map original file numbers to the new file numbers
4470 (in case there are duplicate filenames, we collapse them into one
4471 file section, the MIPS assembler may or may not collapse them). */
4472
4473 remap_file_number = alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4474
4475 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4476 {
4477 FDR *fd_ptr = ORIG_FILES (fd);
4478 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4479
4480 /* file support itself. */
4481 add_file (filename, filename + strlen (filename));
4482 remap_file_number[fd] = cur_file_ptr->file_index;
4483 }
4484
4485 if (delete_ifd > 0) /* just in case */
4486 remap_file_number[0] = remap_file_number[1];
4487
4488
4489 /* Loop, adding each of the external symbols. These must be in
4490 order or otherwise we would have to change the relocation
4491 entries. We don't just call add_bytes, because we need to have
4492 the names put into the external hash table. We set the type to
4493 'void' for now, and parse_def will fill in the correct type if it
4494 is in the symbol table. We must add the external symbols before
4495 the locals, since the locals do lookups against the externals. */
4496
4497 if (debug)
4498 fprintf (stderr, "\tehash\n");
4499
4500 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4501 {
4502 EXTR *eptr = orig_ext_syms + es;
4503 int ifd = eptr->ifd;
4504
4505 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4506 ? remap_file_number[ ifd ] : ifd );
4507 }
4508
4509
4510 /* For each of the files in the object file, copy the symbols, and such
4511 into the varrays for the new object file. */
4512
4513 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4514 {
4515 FDR *fd_ptr = ORIG_FILES (fd);
4516 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4517 SYMR *sym_start;
4518 SYMR *sym;
4519 SYMR *sym_end_p1;
4520 PDR *proc_start;
4521 PDR *proc;
4522 PDR *proc_end_p1;
4523
4524 /* file support itself. */
4525 add_file (filename, filename + strlen (filename));
4526 cur_file_ptr->orig_fdr = fd_ptr;
4527
4528 /* Copy stuff that's just passed through (such as line #'s) */
4529 cur_file_ptr->fdr.adr = fd_ptr->adr;
4530 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4531 cur_file_ptr->fdr.cline = fd_ptr->cline;
4532 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4533 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4534 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4535 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4536 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4537 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4538 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4539
4540 if (debug)
4541 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4542
4543 /* For each of the static and global symbols defined, add them
4544 to the hash table of original symbols, so we can look up
4545 their values. */
4546
4547 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4548 sym_end_p1 = sym_start + fd_ptr->csym;
4549 for (sym = sym_start; sym < sym_end_p1; sym++)
4550 {
4551 switch ((st_t) sym->st)
4552 {
4553 default:
4554 break;
4555
4556 case st_Global:
4557 case st_Static:
4558 case st_Label:
4559 case st_Proc:
4560 case st_StaticProc:
4561 {
4562 auto symint_t hash_index;
4563 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4564 Size_t len = strlen (str);
4565 shash_t *shash_ptr = hash_string (str,
4566 (Ptrdiff_t) len,
4567 &orig_str_hash[0],
4568 &hash_index);
4569
4570 if (shash_ptr != (shash_t *) 0)
4571 error ("internal error, %s is already in original symbol table", str);
4572
4573 else
4574 {
4575 shash_ptr = allocate_shash ();
4576 shash_ptr->next = orig_str_hash[hash_index];
4577 orig_str_hash[hash_index] = shash_ptr;
4578
4579 shash_ptr->len = len;
4580 shash_ptr->indx = indexNil;
4581 shash_ptr->string = str;
4582 shash_ptr->sym_ptr = sym;
4583 }
4584 }
4585 break;
4586
4587 case st_End:
4588 if ((sc_t) sym->sc == sc_Text)
4589 {
4590 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4591
4592 if (*str != '\0')
4593 {
4594 Size_t len = strlen (str);
4595 shash_t *shash_ptr = hash_string (str,
4596 (Ptrdiff_t) len,
4597 &orig_str_hash[0],
4598 (symint_t *) 0);
4599
4600 if (shash_ptr != (shash_t *) 0)
4601 shash_ptr->end_ptr = sym;
4602 }
4603 }
4604 break;
4605
4606 }
4607 }
4608
4609 if (debug)
4610 {
4611 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4612 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4613 }
4614
4615 /* Go through each of the procedures in this file, and add the
4616 procedure pointer to the hash entry for the given name. */
4617
4618 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4619 proc_end_p1 = proc_start + fd_ptr->cpd;
4620 for (proc = proc_start; proc < proc_end_p1; proc++)
4621 {
4622 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4623 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4624 Size_t len = strlen (str);
4625 shash_t *shash_ptr = hash_string (str,
4626 (Ptrdiff_t) len,
4627 &orig_str_hash[0],
4628 (symint_t *) 0);
4629
4630 if (shash_ptr == (shash_t *) 0)
4631 error ("internal error, function %s is not in original symbol table", str);
4632
4633 else
4634 shash_ptr->proc_ptr = proc;
4635 }
4636
4637 if (debug)
4638 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4639
4640 }
4641 cur_file_ptr = first_file;
4642
4643
4644 /* Copy all of the object file up to the symbol table. Originally
4645 we were going to use ftruncate, but that doesn't seem to work
4646 on Ultrix 3.1.... */
4647
4648 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4649 pfatal_with_name (obj_in_name);
4650
4651 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4652 pfatal_with_name (object_name);
4653
4654 for (remaining = orig_file_header.f_symptr;
4655 remaining > 0;
4656 remaining -= num_write)
4657 {
4658 num_write
4659 = (remaining <= (int) sizeof (buffer))
4660 ? remaining : (int) sizeof (buffer);
4661 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4662 if (sys_read <= 0)
4663 pfatal_with_name (obj_in_name);
4664
4665 else if (sys_read != num_write)
4666 fatal ("wanted to read %d bytes from %s, system returned %d",
4667 num_write,
4668 obj_in_name,
4669 sys_read);
4670
4671 sys_write = fwrite (buffer, 1, num_write, object_stream);
4672 if (sys_write <= 0)
4673 pfatal_with_name (object_name);
4674
4675 else if (sys_write != num_write)
4676 fatal ("wrote %d bytes to %s, system returned %d",
4677 num_write,
4678 object_name,
4679 sys_write);
4680 }
4681 }
4682
4683 \f
4684 /* Ye olde main program. */
4685
4686 extern int main (int, char **);
4687
4688 int
4689 main (int argc, char **argv)
4690 {
4691 int iflag = 0;
4692 char *p = strrchr (argv[0], '/');
4693 char *num_end;
4694 int option;
4695 int i;
4696
4697 progname = (p != 0) ? p+1 : argv[0];
4698
4699 (void) signal (SIGSEGV, catch_signal);
4700 (void) signal (SIGBUS, catch_signal);
4701 (void) signal (SIGABRT, catch_signal);
4702
4703 #if !defined(__SABER__) && !defined(lint)
4704 if (sizeof (efdr_t) > PAGE_USIZE)
4705 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4706 (int) sizeof (efdr_t),
4707 (int) PAGE_USIZE);
4708
4709 if (sizeof (page_t) != PAGE_USIZE)
4710 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4711 (int) sizeof (page_t),
4712 (int) PAGE_USIZE);
4713
4714 #endif
4715
4716 alloc_counts[ alloc_type_none ].alloc_name = "none";
4717 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4718 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4719 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4720 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4721 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4722 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4723 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4724 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4725
4726 int_type_info = type_info_init;
4727 int_type_info.basic_type = bt_Int;
4728
4729 void_type_info = type_info_init;
4730 void_type_info.basic_type = bt_Void;
4731
4732 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4733 switch (option)
4734 {
4735 default:
4736 had_errors++;
4737 break;
4738
4739 case 'd':
4740 debug = strtol (optarg, &num_end, 0);
4741 if ((unsigned) debug > 4 || num_end == optarg)
4742 had_errors++;
4743
4744 break;
4745
4746 case 'I':
4747 if (rename_output || obj_in_name != (char *) 0)
4748 had_errors++;
4749 else
4750 rename_output = 1;
4751
4752 /* Fall through to 'i' case. */
4753
4754 case 'i':
4755 if (obj_in_name == (char *) 0)
4756 {
4757 obj_in_name = optarg;
4758 iflag++;
4759 }
4760 else
4761 had_errors++;
4762 break;
4763
4764 case 'o':
4765 if (object_name == (char *) 0)
4766 object_name = optarg;
4767 else
4768 had_errors++;
4769 break;
4770
4771 case 'v':
4772 verbose++;
4773 break;
4774
4775 case 'V':
4776 version++;
4777 break;
4778 }
4779
4780 if (version)
4781 {
4782 printf (_("mips-tfile (GCC) %s\n"), version_string);
4783 fputs ("Copyright (C) 2006 Free Software Foundation, Inc.\n", stdout);
4784 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4785 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4786 stdout);
4787 exit (0);
4788 }
4789
4790 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4791 obj_in_name = argv[--argc];
4792
4793 if (object_name == (char *) 0 && optind <= argc - 2)
4794 object_name = argv[--argc];
4795
4796 /* If there is an output name, but no input name use
4797 the same file for both, deleting the name between
4798 opening it for input and opening it for output. */
4799 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4800 {
4801 obj_in_name = object_name;
4802 delete_input = 1;
4803 }
4804
4805 if (optind != argc - 1)
4806 had_errors++;
4807
4808 if (verbose || had_errors)
4809 {
4810 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4811 #ifdef TARGET_VERSION
4812 TARGET_VERSION;
4813 #endif
4814 fputc ('\n', stderr);
4815 }
4816
4817 if (object_name == (char *) 0 || had_errors)
4818 {
4819 fprintf (stderr, _("Calling Sequence:\n"));
4820 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4821 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4822 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4823 fprintf (stderr, "\n");
4824 fprintf (stderr, _("Debug levels are:\n"));
4825 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4826 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4827 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4828 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4829 return 1;
4830 }
4831
4832 if (obj_in_name == (char *) 0)
4833 obj_in_name = object_name;
4834
4835 if (rename_output && rename (object_name, obj_in_name) != 0)
4836 {
4837 char *buffer = (char *) allocate_multiple_pages (4);
4838 int len;
4839 int len2;
4840 int in_fd;
4841 int out_fd;
4842
4843 /* Rename failed, copy input file */
4844 in_fd = open (object_name, O_RDONLY, 0666);
4845 if (in_fd < 0)
4846 pfatal_with_name (object_name);
4847
4848 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4849 if (out_fd < 0)
4850 pfatal_with_name (obj_in_name);
4851
4852 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4853 {
4854 len2 = write (out_fd, buffer, len);
4855 if (len2 < 0)
4856 pfatal_with_name (object_name);
4857
4858 if (len != len2)
4859 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4860 }
4861
4862 free_multiple_pages ((page_t *) buffer, 4);
4863
4864 if (len < 0)
4865 pfatal_with_name (object_name);
4866
4867 if (close (in_fd) < 0)
4868 pfatal_with_name (object_name);
4869
4870 if (close (out_fd) < 0)
4871 pfatal_with_name (obj_in_name);
4872 }
4873
4874 /* Must open input before output, since the output may be the same file, and
4875 we need to get the input handle before truncating it. */
4876 obj_in_stream = fopen (obj_in_name, "r");
4877 if (obj_in_stream == (FILE *) 0)
4878 pfatal_with_name (obj_in_name);
4879
4880 if (delete_input && unlink (obj_in_name) != 0)
4881 pfatal_with_name (obj_in_name);
4882
4883 object_stream = fopen (object_name, "w");
4884 if (object_stream == (FILE *) 0)
4885 pfatal_with_name (object_name);
4886
4887 if (strcmp (argv[optind], "-") != 0)
4888 {
4889 input_name = argv[optind];
4890 if (freopen (argv[optind], "r", stdin) != stdin)
4891 pfatal_with_name (argv[optind]);
4892 }
4893
4894 copy_object (); /* scan & copy object file */
4895 parse_input (); /* scan all of input */
4896
4897 update_headers (); /* write out tfile */
4898 write_object ();
4899
4900 if (debug)
4901 {
4902 fprintf (stderr, "\n\tAllocation summary:\n\n");
4903 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4904 if (alloc_counts[i].total_alloc)
4905 {
4906 fprintf (stderr,
4907 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4908 alloc_counts[i].alloc_name,
4909 alloc_counts[i].total_alloc,
4910 alloc_counts[i].total_free,
4911 alloc_counts[i].total_pages);
4912 }
4913 }
4914
4915 return (had_errors) ? 1 : 0;
4916 }
4917
4918 \f
4919 /* Catch a signal and exit without dumping core. */
4920
4921 STATIC void
4922 catch_signal (int signum)
4923 {
4924 (void) signal (signum, SIG_DFL); /* just in case... */
4925 fatal ("%s", strsignal (signum));
4926 }
4927
4928 /* Print a fatal error message. NAME is the text.
4929 Also include a system error message based on `errno'. */
4930
4931 void
4932 pfatal_with_name (const char *msg)
4933 {
4934 int save_errno = errno; /* just in case.... */
4935 if (line_number > 0)
4936 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4937 else
4938 fprintf (stderr, "%s:", progname);
4939
4940 errno = save_errno;
4941 if (errno == 0)
4942 fprintf (stderr, "[errno = 0] %s\n", msg);
4943 else
4944 perror (msg);
4945
4946 exit (1);
4947 }
4948
4949 \f
4950 /* Procedure to die with an out of bounds error message. It has
4951 type int, so it can be used with an ?: expression within the
4952 ORIG_xxx macros, but the function never returns. */
4953
4954 static int
4955 out_of_bounds (symint_t indx, /* index that is out of bounds */
4956 symint_t max, /* maximum index */
4957 const char *str, /* string to print out */
4958 int prog_line) /* line number within mips-tfile.c */
4959 {
4960 if (indx < max) /* just in case */
4961 return 0;
4962
4963 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
4964 progname, input_name, line_number, indx, str, max, prog_line);
4965
4966 exit (1);
4967 return 0; /* turn off warning messages */
4968 }
4969
4970 \f
4971 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4972 like sbrk's behind its back (or sbrk isn't available). If we use
4973 sbrk, we assume it gives us zeroed pages. */
4974
4975 #ifndef MALLOC_CHECK
4976 #ifdef USE_MALLOC
4977
4978 STATIC page_t *
4979 allocate_cluster (Size_t npages)
4980 {
4981 page_t *value = xcalloc (npages, PAGE_USIZE);
4982
4983 if (debug > 3)
4984 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4985
4986 return value;
4987 }
4988
4989 #else /* USE_MALLOC */
4990
4991 STATIC page_t *
4992 allocate_cluster (Size_t npages)
4993 {
4994 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4995 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4996
4997 if (offset != 0) /* align to a page boundary */
4998 {
4999 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5000 pfatal_with_name ("allocate_cluster");
5001
5002 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5003 }
5004
5005 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5006 pfatal_with_name ("allocate_cluster");
5007
5008 if (debug > 3)
5009 fprintf (stderr, "\talloc\tnpages = %lu, value = %p\n",
5010 (unsigned long) npages, (void *) ptr);
5011
5012 return ptr;
5013 }
5014
5015 #endif /* USE_MALLOC */
5016
5017
5018 static page_t *cluster_ptr = NULL;
5019 static unsigned pages_left = 0;
5020
5021 #endif /* MALLOC_CHECK */
5022
5023
5024 /* Allocate some pages (which is initialized to 0). */
5025
5026 STATIC page_t *
5027 allocate_multiple_pages (Size_t npages)
5028 {
5029 #ifndef MALLOC_CHECK
5030 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5031 {
5032 pages_left = MAX_CLUSTER_PAGES;
5033 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5034 }
5035
5036 if (npages <= pages_left)
5037 {
5038 page_t *ptr = cluster_ptr;
5039 cluster_ptr += npages;
5040 pages_left -= npages;
5041 return ptr;
5042 }
5043
5044 return allocate_cluster (npages);
5045
5046 #else /* MALLOC_CHECK */
5047 return xcalloc (npages, PAGE_SIZE);
5048
5049 #endif /* MALLOC_CHECK */
5050 }
5051
5052
5053 /* Release some pages. */
5054
5055 STATIC void
5056 free_multiple_pages (page_t *page_ptr, Size_t npages)
5057 {
5058 #ifndef MALLOC_CHECK
5059 if (pages_left == 0)
5060 {
5061 cluster_ptr = page_ptr;
5062 pages_left = npages;
5063 }
5064
5065 else if ((page_ptr + npages) == cluster_ptr)
5066 {
5067 cluster_ptr -= npages;
5068 pages_left += npages;
5069 }
5070
5071 /* otherwise the page is not freed. If more than call is
5072 done, we probably should worry about it, but at present,
5073 the free pages is done right after an allocate. */
5074
5075 #else /* MALLOC_CHECK */
5076 free (page_ptr);
5077
5078 #endif /* MALLOC_CHECK */
5079 }
5080
5081
5082 /* Allocate one page (which is initialized to 0). */
5083
5084 STATIC page_t *
5085 allocate_page (void)
5086 {
5087 #ifndef MALLOC_CHECK
5088 if (pages_left == 0)
5089 {
5090 pages_left = MAX_CLUSTER_PAGES;
5091 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5092 }
5093
5094 pages_left--;
5095 return cluster_ptr++;
5096
5097 #else /* MALLOC_CHECK */
5098 return xcalloc (1, PAGE_SIZE);
5099
5100 #endif /* MALLOC_CHECK */
5101 }
5102
5103 \f
5104 /* Allocate scoping information. */
5105
5106 STATIC scope_t *
5107 allocate_scope (void)
5108 {
5109 scope_t *ptr;
5110 static scope_t initial_scope;
5111
5112 #ifndef MALLOC_CHECK
5113 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5114 if (ptr != (scope_t *) 0)
5115 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5116
5117 else
5118 {
5119 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5120 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5121
5122 if (unallocated == 0)
5123 {
5124 unallocated = PAGE_SIZE / sizeof (scope_t);
5125 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5126 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5127 }
5128
5129 ptr = &cur_page->scope[ --unallocated ];
5130 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5131 }
5132
5133 #else
5134 ptr = xmalloc (sizeof (scope_t));
5135
5136 #endif
5137
5138 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5139 *ptr = initial_scope;
5140 return ptr;
5141 }
5142
5143 /* Free scoping information. */
5144
5145 STATIC void
5146 free_scope (scope_t *ptr)
5147 {
5148 alloc_counts[ (int) alloc_type_scope ].total_free++;
5149
5150 #ifndef MALLOC_CHECK
5151 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5152 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5153
5154 #else
5155 free (ptr);
5156 #endif
5157
5158 }
5159
5160 \f
5161 /* Allocate links for pages in a virtual array. */
5162
5163 STATIC vlinks_t *
5164 allocate_vlinks (void)
5165 {
5166 vlinks_t *ptr;
5167 static vlinks_t initial_vlinks;
5168
5169 #ifndef MALLOC_CHECK
5170 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5171 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5172
5173 if (unallocated == 0)
5174 {
5175 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5176 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5177 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5178 }
5179
5180 ptr = &cur_page->vlinks[ --unallocated ];
5181 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5182
5183 #else
5184 ptr = xmalloc (sizeof (vlinks_t));
5185
5186 #endif
5187
5188 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5189 *ptr = initial_vlinks;
5190 return ptr;
5191 }
5192
5193 \f
5194 /* Allocate string hash buckets. */
5195
5196 STATIC shash_t *
5197 allocate_shash (void)
5198 {
5199 shash_t *ptr;
5200 static shash_t initial_shash;
5201
5202 #ifndef MALLOC_CHECK
5203 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5204 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5205
5206 if (unallocated == 0)
5207 {
5208 unallocated = PAGE_SIZE / sizeof (shash_t);
5209 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5210 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5211 }
5212
5213 ptr = &cur_page->shash[ --unallocated ];
5214 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5215
5216 #else
5217 ptr = xmalloc (sizeof (shash_t));
5218
5219 #endif
5220
5221 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5222 *ptr = initial_shash;
5223 return ptr;
5224 }
5225
5226 \f
5227 /* Allocate type hash buckets. */
5228
5229 STATIC thash_t *
5230 allocate_thash (void)
5231 {
5232 thash_t *ptr;
5233 static thash_t initial_thash;
5234
5235 #ifndef MALLOC_CHECK
5236 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5237 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5238
5239 if (unallocated == 0)
5240 {
5241 unallocated = PAGE_SIZE / sizeof (thash_t);
5242 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5243 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5244 }
5245
5246 ptr = &cur_page->thash[ --unallocated ];
5247 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5248
5249 #else
5250 ptr = xmalloc (sizeof (thash_t));
5251
5252 #endif
5253
5254 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5255 *ptr = initial_thash;
5256 return ptr;
5257 }
5258
5259 \f
5260 /* Allocate structure, union, or enum tag information. */
5261
5262 STATIC tag_t *
5263 allocate_tag (void)
5264 {
5265 tag_t *ptr;
5266 static tag_t initial_tag;
5267
5268 #ifndef MALLOC_CHECK
5269 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5270 if (ptr != (tag_t *) 0)
5271 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5272
5273 else
5274 {
5275 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5276 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5277
5278 if (unallocated == 0)
5279 {
5280 unallocated = PAGE_SIZE / sizeof (tag_t);
5281 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5282 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5283 }
5284
5285 ptr = &cur_page->tag[ --unallocated ];
5286 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5287 }
5288
5289 #else
5290 ptr = xmalloc (sizeof (tag_t));
5291
5292 #endif
5293
5294 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5295 *ptr = initial_tag;
5296 return ptr;
5297 }
5298
5299 /* Free scoping information. */
5300
5301 STATIC void
5302 free_tag (tag_t *ptr)
5303 {
5304 alloc_counts[ (int) alloc_type_tag ].total_free++;
5305
5306 #ifndef MALLOC_CHECK
5307 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5308 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5309
5310 #else
5311 free (ptr);
5312 #endif
5313
5314 }
5315
5316 \f
5317 /* Allocate forward reference to a yet unknown tag. */
5318
5319 STATIC forward_t *
5320 allocate_forward (void)
5321 {
5322 forward_t *ptr;
5323 static forward_t initial_forward;
5324
5325 #ifndef MALLOC_CHECK
5326 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5327 if (ptr != (forward_t *) 0)
5328 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5329
5330 else
5331 {
5332 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5333 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5334
5335 if (unallocated == 0)
5336 {
5337 unallocated = PAGE_SIZE / sizeof (forward_t);
5338 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5339 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5340 }
5341
5342 ptr = &cur_page->forward[ --unallocated ];
5343 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5344 }
5345
5346 #else
5347 ptr = xmalloc (sizeof (forward_t));
5348
5349 #endif
5350
5351 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5352 *ptr = initial_forward;
5353 return ptr;
5354 }
5355
5356 /* Free scoping information. */
5357
5358 STATIC void
5359 free_forward (forward_t *ptr)
5360 {
5361 alloc_counts[ (int) alloc_type_forward ].total_free++;
5362
5363 #ifndef MALLOC_CHECK
5364 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5365 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5366
5367 #else
5368 free (ptr);
5369 #endif
5370
5371 }
5372
5373 \f
5374 /* Allocate head of type hash list. */
5375
5376 STATIC thead_t *
5377 allocate_thead (void)
5378 {
5379 thead_t *ptr;
5380 static thead_t initial_thead;
5381
5382 #ifndef MALLOC_CHECK
5383 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5384 if (ptr != (thead_t *) 0)
5385 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5386
5387 else
5388 {
5389 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5390 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5391
5392 if (unallocated == 0)
5393 {
5394 unallocated = PAGE_SIZE / sizeof (thead_t);
5395 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5396 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5397 }
5398
5399 ptr = &cur_page->thead[ --unallocated ];
5400 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5401 }
5402
5403 #else
5404 ptr = xmalloc (sizeof (thead_t));
5405
5406 #endif
5407
5408 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5409 *ptr = initial_thead;
5410 return ptr;
5411 }
5412
5413 /* Free scoping information. */
5414
5415 STATIC void
5416 free_thead (thead_t *ptr)
5417 {
5418 alloc_counts[ (int) alloc_type_thead ].total_free++;
5419
5420 #ifndef MALLOC_CHECK
5421 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5422 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5423
5424 #else
5425 free (ptr);
5426 #endif
5427
5428 }
5429
5430 #endif /* MIPS_DEBUGGING_INFO */
5431
5432 \f
5433 /* Output an error message and exit. */
5434
5435 void
5436 fatal (const char *format, ...)
5437 {
5438 va_list ap;
5439
5440 va_start (ap, format);
5441
5442 if (line_number > 0)
5443 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5444 else
5445 fprintf (stderr, "%s:", progname);
5446
5447 vfprintf (stderr, format, ap);
5448 va_end (ap);
5449 fprintf (stderr, "\n");
5450 if (line_number > 0)
5451 fprintf (stderr, "line:\t%s\n", cur_line_start);
5452
5453 saber_stop ();
5454 exit (1);
5455 }
5456
5457 void
5458 error (const char *format, ...)
5459 {
5460 va_list ap;
5461
5462 va_start (ap, format);
5463
5464 if (line_number > 0)
5465 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5466 else
5467 fprintf (stderr, "%s:", progname);
5468
5469 vfprintf (stderr, format, ap);
5470 fprintf (stderr, "\n");
5471 if (line_number > 0)
5472 fprintf (stderr, "line:\t%s\n", cur_line_start);
5473
5474 had_errors++;
5475 va_end (ap);
5476
5477 saber_stop ();
5478 }
5479
5480 /* More 'friendly' abort that prints the line and file. */
5481
5482 void
5483 fancy_abort (const char *file, int line, const char *func)
5484 {
5485 fatal ("abort in %s, at %s:%d", func, file, line);
5486 }
5487 \f
5488
5489 /* When `malloc.c' is compiled with `rcheck' defined,
5490 it calls this function to report clobberage. */
5491
5492 void
5493 botch (const char *s)
5494 {
5495 fatal ("%s", s);
5496 }
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