?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Missed one in last change.
[official-gcc.git] / gcc / mips-tfile.c
blobfbcef109d153cb3dbc78009d32e08036f9954c60
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001,
6 2002, 2003 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GCC.
10
11 GCC is free software; you can redistribute it and/or modify it under
12 the terms of the GNU General Public License as published by the Free
13 Software Foundation; either version 2, or (at your option) any later
14 version.
15
16 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
17 WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GCC; see the file COPYING. If not, write to the Free
23 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 02111-1307, USA. */
25
26 \f
27 /* Here is a brief description of the MIPS ECOFF symbol table. The
28 MIPS symbol table has the following pieces:
29
30 Symbolic Header
31 |
32 +-- Auxiliary Symbols
33 |
34 +-- Dense number table
35 |
36 +-- Optimizer Symbols
37 |
38 +-- External Strings
39 |
40 +-- External Symbols
41 |
42 +-- Relative file descriptors
43 |
44 +-- File table
45 |
46 +-- Procedure table
47 |
48 +-- Line number table
49 |
50 +-- Local Strings
51 |
52 +-- Local Symbols
53
54 The symbolic header points to each of the other tables, and also
55 contains the number of entries. It also contains a magic number
56 and MIPS compiler version number, such as 2.0.
57
58 The auxiliary table is a series of 32 bit integers, that are
59 referenced as needed from the local symbol table. Unlike standard
60 COFF, the aux. information does not follow the symbol that uses
61 it, but rather is a separate table. In theory, this would allow
62 the MIPS compilers to collapse duplicate aux. entries, but I've not
63 noticed this happening with the 1.31 compiler suite. The different
64 types of aux. entries are:
65
66 1) dnLow: Low bound on array dimension.
67
68 2) dnHigh: High bound on array dimension.
69
70 3) isym: Index to the local symbol which is the start of the
71 function for the end of function first aux. entry.
72
73 4) width: Width of structures and bitfields.
74
75 5) count: Count of ranges for variant part.
76
77 6) rndx: A relative index into the symbol table. The relative
78 index field has two parts: rfd which is a pointer into the
79 relative file index table or ST_RFDESCAPE which says the next
80 aux. entry is the file number, and index: which is the pointer
81 into the local symbol within a given file table. This is for
82 things like references to types defined in another file.
83
84 7) Type information: This is like the COFF type bits, except it
85 is 32 bits instead of 16; they still have room to add new
86 basic types; and they can handle more than 6 levels of array,
87 pointer, function, etc. Each type information field contains
88 the following structure members:
89
90 a) fBitfield: a bit that says this is a bitfield, and the
91 size in bits follows as the next aux. entry.
92
93 b) continued: a bit that says the next aux. entry is a
94 continuation of the current type information (in case
95 there are more than 6 levels of array/ptr/function).
96
97 c) bt: an integer containing the base type before adding
98 array, pointer, function, etc. qualifiers. The
99 current base types that I have documentation for are:
100
101 btNil -- undefined
102 btAdr -- address - integer same size as ptr
103 btChar -- character
104 btUChar -- unsigned character
105 btShort -- short
106 btUShort -- unsigned short
107 btInt -- int
108 btUInt -- unsigned int
109 btLong -- long
110 btULong -- unsigned long
111 btFloat -- float (real)
112 btDouble -- Double (real)
113 btStruct -- Structure (Record)
114 btUnion -- Union (variant)
115 btEnum -- Enumerated
116 btTypedef -- defined via a typedef isymRef
117 btRange -- subrange of int
118 btSet -- pascal sets
119 btComplex -- fortran complex
120 btDComplex -- fortran double complex
121 btIndirect -- forward or unnamed typedef
122 btFixedDec -- Fixed Decimal
123 btFloatDec -- Float Decimal
124 btString -- Varying Length Character String
125 btBit -- Aligned Bit String
126 btPicture -- Picture
127 btVoid -- Void (MIPS cc revision >= 2.00)
128
129 d) tq0 - tq5: type qualifier fields as needed. The
130 current type qualifier fields I have documentation for
131 are:
132
133 tqNil -- no more qualifiers
134 tqPtr -- pointer
135 tqProc -- procedure
136 tqArray -- array
137 tqFar -- 8086 far pointers
138 tqVol -- volatile
139
140
141 The dense number table is used in the front ends, and disappears by
142 the time the .o is created.
143
144 With the 1.31 compiler suite, the optimization symbols don't seem
145 to be used as far as I can tell.
146
147 The linker is the first entity that creates the relative file
148 descriptor table, and I believe it is used so that the individual
149 file table pointers don't have to be rewritten when the objects are
150 merged together into the program file.
151
152 Unlike COFF, the basic symbol & string tables are split into
153 external and local symbols/strings. The relocation information
154 only goes off of the external symbol table, and the debug
155 information only goes off of the internal symbol table. The
156 external symbols can have links to an appropriate file index and
157 symbol within the file to give it the appropriate type information.
158 Because of this, the external symbols are actually larger than the
159 internal symbols (to contain the link information), and contain the
160 local symbol structure as a member, though this member is not the
161 first member of the external symbol structure (!). I suspect this
162 split is to make strip easier to deal with.
163
164 Each file table has offsets for where the line numbers, local
165 strings, local symbols, and procedure table starts from within the
166 global tables, and the indices are reset to 0 for each of those
167 tables for the file.
168
169 The procedure table contains the binary equivalents of the .ent
170 (start of the function address), .frame (what register is the
171 virtual frame pointer, constant offset from the register to obtain
172 the VFP, and what register holds the return address), .mask/.fmask
173 (bitmask of saved registers, and where the first register is stored
174 relative to the VFP) assembler directives. It also contains the
175 low and high bounds of the line numbers if debugging is turned on.
176
177 The line number table is a compressed form of the normal COFF line
178 table. Each line number entry is either 1 or 3 bytes long, and
179 contains a signed delta from the previous line, and an unsigned
180 count of the number of instructions this statement takes.
181
182 The local symbol table contains the following fields:
183
184 1) iss: index to the local string table giving the name of the
185 symbol.
186
187 2) value: value of the symbol (address, register number, etc.).
188
189 3) st: symbol type. The current symbol types are:
190
191 stNil -- Nuthin' special
192 stGlobal -- external symbol
193 stStatic -- static
194 stParam -- procedure argument
195 stLocal -- local variable
196 stLabel -- label
197 stProc -- External Procedure
198 stBlock -- beginning of block
199 stEnd -- end (of anything)
200 stMember -- member (of anything)
201 stTypedef -- type definition
202 stFile -- file name
203 stRegReloc -- register relocation
204 stForward -- forwarding address
205 stStaticProc -- Static procedure
206 stConstant -- const
207
208 4) sc: storage class. The current storage classes are:
209
210 scText -- text symbol
211 scData -- initialized data symbol
212 scBss -- un-initialized data symbol
213 scRegister -- value of symbol is register number
214 scAbs -- value of symbol is absolute
215 scUndefined -- who knows?
216 scCdbLocal -- variable's value is IN se->va.??
217 scBits -- this is a bit field
218 scCdbSystem -- value is IN debugger's address space
219 scRegImage -- register value saved on stack
220 scInfo -- symbol contains debugger information
221 scUserStruct -- addr in struct user for current process
222 scSData -- load time only small data
223 scSBss -- load time only small common
224 scRData -- load time only read only data
225 scVar -- Var parameter (fortranpascal)
226 scCommon -- common variable
227 scSCommon -- small common
228 scVarRegister -- Var parameter in a register
229 scVariant -- Variant record
230 scSUndefined -- small undefined(external) data
231 scInit -- .init section symbol
232
233 5) index: pointer to a local symbol or aux. entry.
234
235
236
237 For the following program:
238
239 #include <stdio.h>
240
241 main(){
242 printf("Hello World!\n");
243 return 0;
244 }
245
246 Mips-tdump produces the following information:
247
248 Global file header:
249 magic number 0x162
250 # sections 2
251 timestamp 645311799, Wed Jun 13 17:16:39 1990
252 symbolic header offset 284
253 symbolic header size 96
254 optional header 56
255 flags 0x0
256
257 Symbolic header, magic number = 0x7009, vstamp = 1.31:
258
259 Info Offset Number Bytes
260 ==== ====== ====== =====
261
262 Line numbers 380 4 4 [13]
263 Dense numbers 0 0 0
264 Procedures Tables 384 1 52
265 Local Symbols 436 16 192
266 Optimization Symbols 0 0 0
267 Auxiliary Symbols 628 39 156
268 Local Strings 784 80 80
269 External Strings 864 144 144
270 File Tables 1008 2 144
271 Relative Files 0 0 0
272 External Symbols 1152 20 320
273
274 File #0, "hello2.c"
275
276 Name index = 1 Readin = No
277 Merge = No Endian = LITTLE
278 Debug level = G2 Language = C
279 Adr = 0x00000000
280
281 Info Start Number Size Offset
282 ==== ===== ====== ==== ======
283 Local strings 0 15 15 784
284 Local symbols 0 6 72 436
285 Line numbers 0 13 13 380
286 Optimization symbols 0 0 0 0
287 Procedures 0 1 52 384
288 Auxiliary symbols 0 14 56 628
289 Relative Files 0 0 0 0
290
291 There are 6 local symbols, starting at 436
292
293 Symbol# 0: "hello2.c"
294 End+1 symbol = 6
295 String index = 1
296 Storage class = Text Index = 6
297 Symbol type = File Value = 0
298
299 Symbol# 1: "main"
300 End+1 symbol = 5
301 Type = int
302 String index = 10
303 Storage class = Text Index = 12
304 Symbol type = Proc Value = 0
305
306 Symbol# 2: ""
307 End+1 symbol = 4
308 String index = 0
309 Storage class = Text Index = 4
310 Symbol type = Block Value = 8
311
312 Symbol# 3: ""
313 First symbol = 2
314 String index = 0
315 Storage class = Text Index = 2
316 Symbol type = End Value = 28
317
318 Symbol# 4: "main"
319 First symbol = 1
320 String index = 10
321 Storage class = Text Index = 1
322 Symbol type = End Value = 52
323
324 Symbol# 5: "hello2.c"
325 First symbol = 0
326 String index = 1
327 Storage class = Text Index = 0
328 Symbol type = End Value = 0
329
330 There are 14 auxiliary table entries, starting at 628.
331
332 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
333 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
334 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
335 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
336 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
337 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
338 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
339 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
340 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
341 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
342 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
343 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
344 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
345 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
346
347 There are 1 procedure descriptor entries, starting at 0.
348
349 Procedure descriptor 0:
350 Name index = 10 Name = "main"
351 .mask 0x80000000,-4 .fmask 0x00000000,0
352 .frame $29,24,$31
353 Opt. start = -1 Symbols start = 1
354 First line # = 3 Last line # = 6
355 Line Offset = 0 Address = 0x00000000
356
357 There are 4 bytes holding line numbers, starting at 380.
358 Line 3, delta 0, count 2
359 Line 4, delta 1, count 3
360 Line 5, delta 1, count 2
361 Line 6, delta 1, count 6
362
363 File #1, "/usr/include/stdio.h"
364
365 Name index = 1 Readin = No
366 Merge = Yes Endian = LITTLE
367 Debug level = G2 Language = C
368 Adr = 0x00000000
369
370 Info Start Number Size Offset
371 ==== ===== ====== ==== ======
372 Local strings 15 65 65 799
373 Local symbols 6 10 120 508
374 Line numbers 0 0 0 380
375 Optimization symbols 0 0 0 0
376 Procedures 1 0 0 436
377 Auxiliary symbols 14 25 100 684
378 Relative Files 0 0 0 0
379
380 There are 10 local symbols, starting at 442
381
382 Symbol# 0: "/usr/include/stdio.h"
383 End+1 symbol = 10
384 String index = 1
385 Storage class = Text Index = 10
386 Symbol type = File Value = 0
387
388 Symbol# 1: "_iobuf"
389 End+1 symbol = 9
390 String index = 22
391 Storage class = Info Index = 9
392 Symbol type = Block Value = 20
393
394 Symbol# 2: "_cnt"
395 Type = int
396 String index = 29
397 Storage class = Info Index = 4
398 Symbol type = Member Value = 0
399
400 Symbol# 3: "_ptr"
401 Type = ptr to char
402 String index = 34
403 Storage class = Info Index = 15
404 Symbol type = Member Value = 32
405
406 Symbol# 4: "_base"
407 Type = ptr to char
408 String index = 39
409 Storage class = Info Index = 16
410 Symbol type = Member Value = 64
411
412 Symbol# 5: "_bufsiz"
413 Type = int
414 String index = 45
415 Storage class = Info Index = 4
416 Symbol type = Member Value = 96
417
418 Symbol# 6: "_flag"
419 Type = short
420 String index = 53
421 Storage class = Info Index = 3
422 Symbol type = Member Value = 128
423
424 Symbol# 7: "_file"
425 Type = char
426 String index = 59
427 Storage class = Info Index = 2
428 Symbol type = Member Value = 144
429
430 Symbol# 8: ""
431 First symbol = 1
432 String index = 0
433 Storage class = Info Index = 1
434 Symbol type = End Value = 0
435
436 Symbol# 9: "/usr/include/stdio.h"
437 First symbol = 0
438 String index = 1
439 Storage class = Text Index = 0
440 Symbol type = End Value = 0
441
442 There are 25 auxiliary table entries, starting at 642.
443
444 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
445 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
447 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
448 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
449 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
451 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
452 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
453 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
454 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
455 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
469
470 There are 0 procedure descriptor entries, starting at 1.
471
472 There are 20 external symbols, starting at 1152
473
474 Symbol# 0: "_iob"
475 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
476 String index = 0 Ifd = 1
477 Storage class = Nil Index = 17
478 Symbol type = Global Value = 60
479
480 Symbol# 1: "fopen"
481 String index = 5 Ifd = 1
482 Storage class = Nil Index = 1048575
483 Symbol type = Proc Value = 0
484
485 Symbol# 2: "fdopen"
486 String index = 11 Ifd = 1
487 Storage class = Nil Index = 1048575
488 Symbol type = Proc Value = 0
489
490 Symbol# 3: "freopen"
491 String index = 18 Ifd = 1
492 Storage class = Nil Index = 1048575
493 Symbol type = Proc Value = 0
494
495 Symbol# 4: "popen"
496 String index = 26 Ifd = 1
497 Storage class = Nil Index = 1048575
498 Symbol type = Proc Value = 0
499
500 Symbol# 5: "tmpfile"
501 String index = 32 Ifd = 1
502 Storage class = Nil Index = 1048575
503 Symbol type = Proc Value = 0
504
505 Symbol# 6: "ftell"
506 String index = 40 Ifd = 1
507 Storage class = Nil Index = 1048575
508 Symbol type = Proc Value = 0
509
510 Symbol# 7: "rewind"
511 String index = 46 Ifd = 1
512 Storage class = Nil Index = 1048575
513 Symbol type = Proc Value = 0
514
515 Symbol# 8: "setbuf"
516 String index = 53 Ifd = 1
517 Storage class = Nil Index = 1048575
518 Symbol type = Proc Value = 0
519
520 Symbol# 9: "setbuffer"
521 String index = 60 Ifd = 1
522 Storage class = Nil Index = 1048575
523 Symbol type = Proc Value = 0
524
525 Symbol# 10: "setlinebuf"
526 String index = 70 Ifd = 1
527 Storage class = Nil Index = 1048575
528 Symbol type = Proc Value = 0
529
530 Symbol# 11: "fgets"
531 String index = 81 Ifd = 1
532 Storage class = Nil Index = 1048575
533 Symbol type = Proc Value = 0
534
535 Symbol# 12: "gets"
536 String index = 87 Ifd = 1
537 Storage class = Nil Index = 1048575
538 Symbol type = Proc Value = 0
539
540 Symbol# 13: "ctermid"
541 String index = 92 Ifd = 1
542 Storage class = Nil Index = 1048575
543 Symbol type = Proc Value = 0
544
545 Symbol# 14: "cuserid"
546 String index = 100 Ifd = 1
547 Storage class = Nil Index = 1048575
548 Symbol type = Proc Value = 0
549
550 Symbol# 15: "tempnam"
551 String index = 108 Ifd = 1
552 Storage class = Nil Index = 1048575
553 Symbol type = Proc Value = 0
554
555 Symbol# 16: "tmpnam"
556 String index = 116 Ifd = 1
557 Storage class = Nil Index = 1048575
558 Symbol type = Proc Value = 0
559
560 Symbol# 17: "sprintf"
561 String index = 123 Ifd = 1
562 Storage class = Nil Index = 1048575
563 Symbol type = Proc Value = 0
564
565 Symbol# 18: "main"
566 Type = int
567 String index = 131 Ifd = 0
568 Storage class = Text Index = 1
569 Symbol type = Proc Value = 0
570
571 Symbol# 19: "printf"
572 String index = 136 Ifd = 0
573 Storage class = Undefined Index = 1048575
574 Symbol type = Proc Value = 0
575
576 The following auxiliary table entries were unused:
577
578 #0 0 0x00000000 void
579 #2 8 0x00000008 char
580 #3 16 0x00000010 short
581 #4 24 0x00000018 int
582 #5 32 0x00000020 long
583 #6 40 0x00000028 float
584 #7 44 0x0000002c double
585 #8 12 0x0000000c unsigned char
586 #9 20 0x00000014 unsigned short
587 #10 28 0x0000001c unsigned int
588 #11 36 0x00000024 unsigned long
589 #14 0 0x00000000 void
590 #15 24 0x00000018 int
591 #19 32 0x00000020 long
592 #20 40 0x00000028 float
593 #21 44 0x0000002c double
594 #22 12 0x0000000c unsigned char
595 #23 20 0x00000014 unsigned short
596 #24 28 0x0000001c unsigned int
597 #25 36 0x00000024 unsigned long
598 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
599
600 */
601 \f
602
603 #include "config.h"
604 #include "system.h"
605 #include "coretypes.h"
606 #include "tm.h"
607 #include "version.h"
608 #include "intl.h"
609
610 #ifndef __SABER__
611 #define saber_stop()
612 #endif
613
614 /* Include getopt.h for the sake of getopt_long. */
615 #include "getopt.h"
616
617 #ifndef __LINE__
618 #define __LINE__ 0
619 #endif
620
621 /* Due to size_t being defined in sys/types.h and different
622 in stddef.h, we have to do this by hand..... Note, these
623 types are correct for MIPS based systems, and may not be
624 correct for other systems. Ultrix 4.0 and Silicon Graphics
625 have this fixed, but since the following is correct, and
626 the fact that including stddef.h gets you GCC's version
627 instead of the standard one it's not worth it to fix it. */
628
629 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
630 #define Size_t long unsigned int
631 #else
632 #define Size_t unsigned int
633 #endif
634 #define Ptrdiff_t long
635
636 /* The following might be called from obstack or malloc,
637 so they can't be static. */
638
639 extern void pfatal_with_name
640 PARAMS ((const char *)) ATTRIBUTE_NORETURN;
641 extern void fancy_abort PARAMS ((void)) ATTRIBUTE_NORETURN;
642 void botch PARAMS ((const char *)) ATTRIBUTE_NORETURN;
643
644 extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
645 extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
646 \f
647 #ifndef MIPS_DEBUGGING_INFO
648
649 static int line_number;
650 static int cur_line_start;
651 static int debug;
652 static int had_errors;
653 static const char *progname;
654 static const char *input_name;
655
656 int
657 main ()
658 {
659 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
660 exit (1);
661 }
662
663 #else /* MIPS_DEBUGGING defined */
664 \f
665 /* The local and global symbols have a field index, so undo any defines
666 of index -> strchr. */
667
668 #undef index
669
670 #include <signal.h>
671
672 #ifndef CROSS_COMPILE
673 #include <a.out.h>
674 #else
675 #include "mips/a.out.h"
676 #endif /* CROSS_COMPILE */
677
678 #include "gstab.h"
679
680 #define STAB_CODE_TYPE enum __stab_debug_code
681
682 #ifndef MALLOC_CHECK
683 #ifdef __SABER__
684 #define MALLOC_CHECK
685 #endif
686 #endif
687
688 #define IS_ASM_IDENT(ch) \
689 (ISIDNUM (ch) || (ch) == '.' || (ch) == '$')
690
691 \f
692 /* Redefinition of storage classes as an enumeration for better
693 debugging. */
694
695 typedef enum sc {
696 sc_Nil = scNil, /* no storage class */
697 sc_Text = scText, /* text symbol */
698 sc_Data = scData, /* initialized data symbol */
699 sc_Bss = scBss, /* un-initialized data symbol */
700 sc_Register = scRegister, /* value of symbol is register number */
701 sc_Abs = scAbs, /* value of symbol is absolute */
702 sc_Undefined = scUndefined, /* who knows? */
703 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
704 sc_Bits = scBits, /* this is a bit field */
705 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
706 sc_RegImage = scRegImage, /* register value saved on stack */
707 sc_Info = scInfo, /* symbol contains debugger information */
708 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
709 sc_SData = scSData, /* load time only small data */
710 sc_SBss = scSBss, /* load time only small common */
711 sc_RData = scRData, /* load time only read only data */
712 sc_Var = scVar, /* Var parameter (fortran,pascal) */
713 sc_Common = scCommon, /* common variable */
714 sc_SCommon = scSCommon, /* small common */
715 sc_VarRegister = scVarRegister, /* Var parameter in a register */
716 sc_Variant = scVariant, /* Variant record */
717 sc_SUndefined = scSUndefined, /* small undefined(external) data */
718 sc_Init = scInit, /* .init section symbol */
719 sc_Max = scMax /* Max storage class+1 */
720 } sc_t;
721
722 /* Redefinition of symbol type. */
723
724 typedef enum st {
725 st_Nil = stNil, /* Nuthin' special */
726 st_Global = stGlobal, /* external symbol */
727 st_Static = stStatic, /* static */
728 st_Param = stParam, /* procedure argument */
729 st_Local = stLocal, /* local variable */
730 st_Label = stLabel, /* label */
731 st_Proc = stProc, /* " " Procedure */
732 st_Block = stBlock, /* beginning of block */
733 st_End = stEnd, /* end (of anything) */
734 st_Member = stMember, /* member (of anything - struct/union/enum */
735 st_Typedef = stTypedef, /* type definition */
736 st_File = stFile, /* file name */
737 st_RegReloc = stRegReloc, /* register relocation */
738 st_Forward = stForward, /* forwarding address */
739 st_StaticProc = stStaticProc, /* load time only static procs */
740 st_Constant = stConstant, /* const */
741 st_Str = stStr, /* string */
742 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
743 st_Expr = stExpr, /* 2+2 vs. 4 */
744 st_Type = stType, /* post-coercion SER */
745 st_Max = stMax /* max type+1 */
746 } st_t;
747
748 /* Redefinition of type qualifiers. */
749
750 typedef enum tq {
751 tq_Nil = tqNil, /* bt is what you see */
752 tq_Ptr = tqPtr, /* pointer */
753 tq_Proc = tqProc, /* procedure */
754 tq_Array = tqArray, /* duh */
755 tq_Far = tqFar, /* longer addressing - 8086/8 land */
756 tq_Vol = tqVol, /* volatile */
757 tq_Max = tqMax /* Max type qualifier+1 */
758 } tq_t;
759
760 /* Redefinition of basic types. */
761
762 typedef enum bt {
763 bt_Nil = btNil, /* undefined */
764 bt_Adr = btAdr, /* address - integer same size as pointer */
765 bt_Char = btChar, /* character */
766 bt_UChar = btUChar, /* unsigned character */
767 bt_Short = btShort, /* short */
768 bt_UShort = btUShort, /* unsigned short */
769 bt_Int = btInt, /* int */
770 bt_UInt = btUInt, /* unsigned int */
771 bt_Long = btLong, /* long */
772 bt_ULong = btULong, /* unsigned long */
773 bt_Float = btFloat, /* float (real) */
774 bt_Double = btDouble, /* Double (real) */
775 bt_Struct = btStruct, /* Structure (Record) */
776 bt_Union = btUnion, /* Union (variant) */
777 bt_Enum = btEnum, /* Enumerated */
778 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
779 bt_Range = btRange, /* subrange of int */
780 bt_Set = btSet, /* pascal sets */
781 bt_Complex = btComplex, /* fortran complex */
782 bt_DComplex = btDComplex, /* fortran double complex */
783 bt_Indirect = btIndirect, /* forward or unnamed typedef */
784 bt_FixedDec = btFixedDec, /* Fixed Decimal */
785 bt_FloatDec = btFloatDec, /* Float Decimal */
786 bt_String = btString, /* Varying Length Character String */
787 bt_Bit = btBit, /* Aligned Bit String */
788 bt_Picture = btPicture, /* Picture */
789
790 #ifdef btVoid
791 bt_Void = btVoid, /* Void */
792 #else
793 #define bt_Void bt_Nil
794 #endif
795
796 bt_Max = btMax /* Max basic type+1 */
797 } bt_t;
798
799 \f
800
801 /* Basic COFF storage classes. */
802 enum coff_storage {
803 C_EFCN = -1,
804 C_NULL = 0,
805 C_AUTO = 1,
806 C_EXT = 2,
807 C_STAT = 3,
808 C_REG = 4,
809 C_EXTDEF = 5,
810 C_LABEL = 6,
811 C_ULABEL = 7,
812 C_MOS = 8,
813 C_ARG = 9,
814 C_STRTAG = 10,
815 C_MOU = 11,
816 C_UNTAG = 12,
817 C_TPDEF = 13,
818 C_USTATIC = 14,
819 C_ENTAG = 15,
820 C_MOE = 16,
821 C_REGPARM = 17,
822 C_FIELD = 18,
823 C_BLOCK = 100,
824 C_FCN = 101,
825 C_EOS = 102,
826 C_FILE = 103,
827 C_LINE = 104,
828 C_ALIAS = 105,
829 C_HIDDEN = 106,
830 C_MAX = 107
831 } coff_storage_t;
832
833 /* Regular COFF fundamental type. */
834 typedef enum coff_type {
835 T_NULL = 0,
836 T_ARG = 1,
837 T_CHAR = 2,
838 T_SHORT = 3,
839 T_INT = 4,
840 T_LONG = 5,
841 T_FLOAT = 6,
842 T_DOUBLE = 7,
843 T_STRUCT = 8,
844 T_UNION = 9,
845 T_ENUM = 10,
846 T_MOE = 11,
847 T_UCHAR = 12,
848 T_USHORT = 13,
849 T_UINT = 14,
850 T_ULONG = 15,
851 T_MAX = 16
852 } coff_type_t;
853
854 /* Regular COFF derived types. */
855 typedef enum coff_dt {
856 DT_NON = 0,
857 DT_PTR = 1,
858 DT_FCN = 2,
859 DT_ARY = 3,
860 DT_MAX = 4
861 } coff_dt_t;
862
863 #define N_BTMASK 017 /* bitmask to isolate basic type */
864 #define N_TMASK 003 /* bitmask to isolate derived type */
865 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
866 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
867 #define N_TQ 6 /* # of type qualifiers */
868
869 /* States for whether to hash type or not. */
870 typedef enum hash_state {
871 hash_no = 0, /* don't hash type */
872 hash_yes = 1, /* ok to hash type, or use previous hash */
873 hash_record = 2 /* ok to record hash, but don't use prev. */
874 } hash_state_t;
875
876
877 /* Types of different sized allocation requests. */
878 enum alloc_type {
879 alloc_type_none, /* dummy value */
880 alloc_type_scope, /* nested scopes linked list */
881 alloc_type_vlinks, /* glue linking pages in varray */
882 alloc_type_shash, /* string hash element */
883 alloc_type_thash, /* type hash element */
884 alloc_type_tag, /* struct/union/tag element */
885 alloc_type_forward, /* element to hold unknown tag */
886 alloc_type_thead, /* head of type hash list */
887 alloc_type_varray, /* general varray allocation */
888 alloc_type_last /* last+1 element for array bounds */
889 };
890
891 \f
892 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
893 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
894
895
896 /* Structures to provide n-number of virtual arrays, each of which can
897 grow linearly, and which are written in the object file as sequential
898 pages. On systems with a BSD malloc that define USE_MALLOC, the
899 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
900 adds its overhead, and rounds up to the next power of 2. Pages are
901 linked together via a linked list. */
902
903 #ifndef PAGE_SIZE
904 #define PAGE_SIZE 32768 /* size of varray pages */
905 #endif
906
907 #define PAGE_USIZE ((Size_t) PAGE_SIZE)
908
909
910 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
911 #ifndef USE_MALLOC /* in one memory request */
912 #define MAX_CLUSTER_PAGES 64
913 #else
914 #define MAX_CLUSTER_PAGES 63
915 #endif
916 #endif
917
918
919 /* Linked list connecting separate page allocations. */
920 typedef struct vlinks {
921 struct vlinks *prev; /* previous set of pages */
922 struct vlinks *next; /* next set of pages */
923 union page *datum; /* start of page */
924 unsigned long start_index; /* starting index # of page */
925 } vlinks_t;
926
927
928 /* Virtual array header. */
929 typedef struct varray {
930 vlinks_t *first; /* first page link */
931 vlinks_t *last; /* last page link */
932 unsigned long num_allocated; /* # objects allocated */
933 unsigned short object_size; /* size in bytes of each object */
934 unsigned short objects_per_page; /* # objects that can fit on a page */
935 unsigned short objects_last_page; /* # objects allocated on last page */
936 } varray_t;
937
938 #ifndef MALLOC_CHECK
939 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
940 #else
941 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
942 #endif
943
944 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
945 (vlinks_t *) 0, /* first */ \
946 (vlinks_t *) 0, /* last */ \
947 0, /* num_allocated */ \
948 sizeof (type), /* object_size */ \
949 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
950 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
951 }
952
953 #define INITIALIZE_VARRAY(x,type) \
954 do { \
955 (x)->object_size = sizeof (type); \
956 (x)->objects_per_page = OBJECTS_PER_PAGE (type); \
957 (x)->objects_last_page = OBJECTS_PER_PAGE (type); \
958 } while (0)
959
960 /* Master type for indexes within the symbol table. */
961 typedef unsigned long symint_t;
962
963
964 /* Linked list support for nested scopes (file, block, structure, etc.). */
965 typedef struct scope {
966 struct scope *prev; /* previous scope level */
967 struct scope *free; /* free list pointer */
968 SYMR *lsym; /* pointer to local symbol node */
969 symint_t lnumber; /* lsym index */
970 st_t type; /* type of the node */
971 } scope_t;
972
973
974 /* Forward reference list for tags referenced, but not yet defined. */
975 typedef struct forward {
976 struct forward *next; /* next forward reference */
977 struct forward *free; /* free list pointer */
978 AUXU *ifd_ptr; /* pointer to store file index */
979 AUXU *index_ptr; /* pointer to store symbol index */
980 AUXU *type_ptr; /* pointer to munge type info */
981 } forward_t;
982
983
984 /* Linked list support for tags. The first tag in the list is always
985 the current tag for that block. */
986 typedef struct tag {
987 struct tag *free; /* free list pointer */
988 struct shash *hash_ptr; /* pointer to the hash table head */
989 struct tag *same_name; /* tag with same name in outer scope */
990 struct tag *same_block; /* next tag defined in the same block. */
991 struct forward *forward_ref; /* list of forward references */
992 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
993 symint_t ifd; /* file # tag defined in */
994 symint_t indx; /* index within file's local symbols */
995 } tag_t;
996
997
998 /* Head of a block's linked list of tags. */
999 typedef struct thead {
1000 struct thead *prev; /* previous block */
1001 struct thead *free; /* free list pointer */
1002 struct tag *first_tag; /* first tag in block defined */
1003 } thead_t;
1004
1005
1006 /* Union containing pointers to each the small structures which are freed up. */
1007 typedef union small_free {
1008 scope_t *f_scope; /* scope structure */
1009 thead_t *f_thead; /* tag head structure */
1010 tag_t *f_tag; /* tag element structure */
1011 forward_t *f_forward; /* forward tag reference */
1012 } small_free_t;
1013
1014
1015 /* String hash table support. The size of the hash table must fit
1016 within a page. */
1017
1018 #ifndef SHASH_SIZE
1019 #define SHASH_SIZE 1009
1020 #endif
1021
1022 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1023
1024 typedef struct shash {
1025 struct shash *next; /* next hash value */
1026 char *string; /* string we are hashing */
1027 symint_t len; /* string length */
1028 symint_t indx; /* index within string table */
1029 EXTR *esym_ptr; /* global symbol pointer */
1030 SYMR *sym_ptr; /* local symbol pointer */
1031 SYMR *end_ptr; /* symbol pointer to end block */
1032 tag_t *tag_ptr; /* tag pointer */
1033 PDR *proc_ptr; /* procedure descriptor pointer */
1034 } shash_t;
1035
1036
1037 /* Type hash table support. The size of the hash table must fit
1038 within a page with the other extended file descriptor information.
1039 Because unique types which are hashed are fewer in number than
1040 strings, we use a smaller hash value. */
1041
1042 #ifndef THASH_SIZE
1043 #define THASH_SIZE 113
1044 #endif
1045
1046 typedef struct thash {
1047 struct thash *next; /* next hash value */
1048 AUXU type; /* type we are hashing */
1049 symint_t indx; /* index within string table */
1050 } thash_t;
1051
1052
1053 /* Extended file descriptor that contains all of the support necessary
1054 to add things to each file separately. */
1055 typedef struct efdr {
1056 FDR fdr; /* File header to be written out */
1057 FDR *orig_fdr; /* original file header */
1058 char *name; /* filename */
1059 int name_len; /* length of the filename */
1060 symint_t void_type; /* aux. pointer to 'void' type */
1061 symint_t int_type; /* aux. pointer to 'int' type */
1062 scope_t *cur_scope; /* current nested scopes */
1063 symint_t file_index; /* current file number */
1064 int nested_scopes; /* # nested scopes */
1065 varray_t strings; /* local strings */
1066 varray_t symbols; /* local symbols */
1067 varray_t procs; /* procedures */
1068 varray_t aux_syms; /* auxiliary symbols */
1069 struct efdr *next_file; /* next file descriptor */
1070 /* string/type hash tables */
1071 shash_t **shash_head; /* string hash table */
1072 thash_t *thash_head[THASH_SIZE];
1073 } efdr_t;
1074
1075 /* Pre-initialized extended file structure. */
1076 static int init_file_initialized = 0;
1077 static efdr_t init_file;
1078
1079 static efdr_t *first_file; /* first file descriptor */
1080 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1081
1082
1083 /* Union of various things that are held in pages. */
1084 typedef union page {
1085 char byte [ PAGE_SIZE ];
1086 unsigned char ubyte [ PAGE_SIZE ];
1087 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1088 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1089 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1090 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1091 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1092 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1093 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1094 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1095 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1096 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1097 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1098 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1099 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1100 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1101 } page_t;
1102
1103
1104 /* Structure holding allocation information for small sized structures. */
1105 typedef struct alloc_info {
1106 const char *alloc_name; /* name of this allocation type (must be first) */
1107 page_t *cur_page; /* current page being allocated from */
1108 small_free_t free_list; /* current free list if any */
1109 int unallocated; /* number of elements unallocated on page */
1110 int total_alloc; /* total number of allocations */
1111 int total_free; /* total number of frees */
1112 int total_pages; /* total number of pages allocated */
1113 } alloc_info_t;
1114
1115 /* Type information collected together. */
1116 typedef struct type_info {
1117 bt_t basic_type; /* basic type */
1118 coff_type_t orig_type; /* original COFF-based type */
1119 int num_tq; /* # type qualifiers */
1120 int num_dims; /* # dimensions */
1121 int num_sizes; /* # sizes */
1122 int extra_sizes; /* # extra sizes not tied with dims */
1123 tag_t * tag_ptr; /* tag pointer */
1124 int bitfield; /* symbol is a bitfield */
1125 int unknown_tag; /* this is an unknown tag */
1126 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1127 symint_t dimensions [N_TQ]; /* dimensions for each array */
1128 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1129 struct/union/enum + bitfield size */
1130 } type_info_t;
1131
1132 /* Pre-initialized type_info struct. */
1133 static type_info_t type_info_init = {
1134 bt_Nil, /* basic type */
1135 T_NULL, /* original COFF-based type */
1136 0, /* # type qualifiers */
1137 0, /* # dimensions */
1138 0, /* # sizes */
1139 0, /* sizes not tied with dims */
1140 NULL, /* ptr to tag */
1141 0, /* bitfield */
1142 0, /* unknown tag */
1143 { /* type qualifiers */
1144 tq_Nil,
1145 tq_Nil,
1146 tq_Nil,
1147 tq_Nil,
1148 tq_Nil,
1149 tq_Nil,
1150 },
1151 { /* dimensions */
1152 0,
1153 0,
1154 0,
1155 0,
1156 0,
1157 0
1158 },
1159 { /* sizes */
1160 0,
1161 0,
1162 0,
1163 0,
1164 0,
1165 0,
1166 0,
1167 0,
1168 },
1169 };
1170
1171
1172 /* Global virtual arrays & hash table for external strings as well as
1173 for the tags table and global tables for file descriptors, and
1174 dense numbers. */
1175
1176 static varray_t file_desc = INIT_VARRAY (efdr_t);
1177 static varray_t dense_num = INIT_VARRAY (DNR);
1178 static varray_t tag_strings = INIT_VARRAY (char);
1179 static varray_t ext_strings = INIT_VARRAY (char);
1180 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1181
1182 static shash_t *orig_str_hash[SHASH_SIZE];
1183 static shash_t *ext_str_hash [SHASH_SIZE];
1184 static shash_t *tag_hash [SHASH_SIZE];
1185
1186 /* Static types for int and void. Also, remember the last function's
1187 type (which is set up when we encounter the declaration for the
1188 function, and used when the end block for the function is emitted. */
1189
1190 static type_info_t int_type_info;
1191 static type_info_t void_type_info;
1192 static type_info_t last_func_type_info;
1193 static EXTR *last_func_eptr;
1194
1195
1196 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1197 really should use bt_Void, but this causes the current ecoff GDB to
1198 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1199 2.0) doesn't understand it, even though the compiler generates it.
1200 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1201 suite, but for now go with what works. */
1202
1203 static const bt_t map_coff_types[ (int) T_MAX ] = {
1204 bt_Nil, /* T_NULL */
1205 bt_Nil, /* T_ARG */
1206 bt_Char, /* T_CHAR */
1207 bt_Short, /* T_SHORT */
1208 bt_Int, /* T_INT */
1209 bt_Long, /* T_LONG */
1210 bt_Float, /* T_FLOAT */
1211 bt_Double, /* T_DOUBLE */
1212 bt_Struct, /* T_STRUCT */
1213 bt_Union, /* T_UNION */
1214 bt_Enum, /* T_ENUM */
1215 bt_Enum, /* T_MOE */
1216 bt_UChar, /* T_UCHAR */
1217 bt_UShort, /* T_USHORT */
1218 bt_UInt, /* T_UINT */
1219 bt_ULong /* T_ULONG */
1220 };
1221
1222 /* Convert COFF storage class to ECOFF storage class. */
1223 static const sc_t map_coff_storage[ (int) C_MAX ] = {
1224 sc_Nil, /* 0: C_NULL */
1225 sc_Abs, /* 1: C_AUTO auto var */
1226 sc_Undefined, /* 2: C_EXT external */
1227 sc_Data, /* 3: C_STAT static */
1228 sc_Register, /* 4: C_REG register */
1229 sc_Undefined, /* 5: C_EXTDEF ??? */
1230 sc_Text, /* 6: C_LABEL label */
1231 sc_Text, /* 7: C_ULABEL user label */
1232 sc_Info, /* 8: C_MOS member of struct */
1233 sc_Abs, /* 9: C_ARG argument */
1234 sc_Info, /* 10: C_STRTAG struct tag */
1235 sc_Info, /* 11: C_MOU member of union */
1236 sc_Info, /* 12: C_UNTAG union tag */
1237 sc_Info, /* 13: C_TPDEF typedef */
1238 sc_Data, /* 14: C_USTATIC ??? */
1239 sc_Info, /* 15: C_ENTAG enum tag */
1240 sc_Info, /* 16: C_MOE member of enum */
1241 sc_Register, /* 17: C_REGPARM register parameter */
1242 sc_Bits, /* 18; C_FIELD bitfield */
1243 sc_Nil, /* 19 */
1244 sc_Nil, /* 20 */
1245 sc_Nil, /* 21 */
1246 sc_Nil, /* 22 */
1247 sc_Nil, /* 23 */
1248 sc_Nil, /* 24 */
1249 sc_Nil, /* 25 */
1250 sc_Nil, /* 26 */
1251 sc_Nil, /* 27 */
1252 sc_Nil, /* 28 */
1253 sc_Nil, /* 29 */
1254 sc_Nil, /* 30 */
1255 sc_Nil, /* 31 */
1256 sc_Nil, /* 32 */
1257 sc_Nil, /* 33 */
1258 sc_Nil, /* 34 */
1259 sc_Nil, /* 35 */
1260 sc_Nil, /* 36 */
1261 sc_Nil, /* 37 */
1262 sc_Nil, /* 38 */
1263 sc_Nil, /* 39 */
1264 sc_Nil, /* 40 */
1265 sc_Nil, /* 41 */
1266 sc_Nil, /* 42 */
1267 sc_Nil, /* 43 */
1268 sc_Nil, /* 44 */
1269 sc_Nil, /* 45 */
1270 sc_Nil, /* 46 */
1271 sc_Nil, /* 47 */
1272 sc_Nil, /* 48 */
1273 sc_Nil, /* 49 */
1274 sc_Nil, /* 50 */
1275 sc_Nil, /* 51 */
1276 sc_Nil, /* 52 */
1277 sc_Nil, /* 53 */
1278 sc_Nil, /* 54 */
1279 sc_Nil, /* 55 */
1280 sc_Nil, /* 56 */
1281 sc_Nil, /* 57 */
1282 sc_Nil, /* 58 */
1283 sc_Nil, /* 59 */
1284 sc_Nil, /* 60 */
1285 sc_Nil, /* 61 */
1286 sc_Nil, /* 62 */
1287 sc_Nil, /* 63 */
1288 sc_Nil, /* 64 */
1289 sc_Nil, /* 65 */
1290 sc_Nil, /* 66 */
1291 sc_Nil, /* 67 */
1292 sc_Nil, /* 68 */
1293 sc_Nil, /* 69 */
1294 sc_Nil, /* 70 */
1295 sc_Nil, /* 71 */
1296 sc_Nil, /* 72 */
1297 sc_Nil, /* 73 */
1298 sc_Nil, /* 74 */
1299 sc_Nil, /* 75 */
1300 sc_Nil, /* 76 */
1301 sc_Nil, /* 77 */
1302 sc_Nil, /* 78 */
1303 sc_Nil, /* 79 */
1304 sc_Nil, /* 80 */
1305 sc_Nil, /* 81 */
1306 sc_Nil, /* 82 */
1307 sc_Nil, /* 83 */
1308 sc_Nil, /* 84 */
1309 sc_Nil, /* 85 */
1310 sc_Nil, /* 86 */
1311 sc_Nil, /* 87 */
1312 sc_Nil, /* 88 */
1313 sc_Nil, /* 89 */
1314 sc_Nil, /* 90 */
1315 sc_Nil, /* 91 */
1316 sc_Nil, /* 92 */
1317 sc_Nil, /* 93 */
1318 sc_Nil, /* 94 */
1319 sc_Nil, /* 95 */
1320 sc_Nil, /* 96 */
1321 sc_Nil, /* 97 */
1322 sc_Nil, /* 98 */
1323 sc_Nil, /* 99 */
1324 sc_Text, /* 100: C_BLOCK block start/end */
1325 sc_Text, /* 101: C_FCN function start/end */
1326 sc_Info, /* 102: C_EOS end of struct/union/enum */
1327 sc_Nil, /* 103: C_FILE file start */
1328 sc_Nil, /* 104: C_LINE line number */
1329 sc_Nil, /* 105: C_ALIAS combined type info */
1330 sc_Nil, /* 106: C_HIDDEN ??? */
1331 };
1332
1333 /* Convert COFF storage class to ECOFF symbol type. */
1334 static const st_t map_coff_sym_type[ (int) C_MAX ] = {
1335 st_Nil, /* 0: C_NULL */
1336 st_Local, /* 1: C_AUTO auto var */
1337 st_Global, /* 2: C_EXT external */
1338 st_Static, /* 3: C_STAT static */
1339 st_Local, /* 4: C_REG register */
1340 st_Global, /* 5: C_EXTDEF ??? */
1341 st_Label, /* 6: C_LABEL label */
1342 st_Label, /* 7: C_ULABEL user label */
1343 st_Member, /* 8: C_MOS member of struct */
1344 st_Param, /* 9: C_ARG argument */
1345 st_Block, /* 10: C_STRTAG struct tag */
1346 st_Member, /* 11: C_MOU member of union */
1347 st_Block, /* 12: C_UNTAG union tag */
1348 st_Typedef, /* 13: C_TPDEF typedef */
1349 st_Static, /* 14: C_USTATIC ??? */
1350 st_Block, /* 15: C_ENTAG enum tag */
1351 st_Member, /* 16: C_MOE member of enum */
1352 st_Param, /* 17: C_REGPARM register parameter */
1353 st_Member, /* 18; C_FIELD bitfield */
1354 st_Nil, /* 19 */
1355 st_Nil, /* 20 */
1356 st_Nil, /* 21 */
1357 st_Nil, /* 22 */
1358 st_Nil, /* 23 */
1359 st_Nil, /* 24 */
1360 st_Nil, /* 25 */
1361 st_Nil, /* 26 */
1362 st_Nil, /* 27 */
1363 st_Nil, /* 28 */
1364 st_Nil, /* 29 */
1365 st_Nil, /* 30 */
1366 st_Nil, /* 31 */
1367 st_Nil, /* 32 */
1368 st_Nil, /* 33 */
1369 st_Nil, /* 34 */
1370 st_Nil, /* 35 */
1371 st_Nil, /* 36 */
1372 st_Nil, /* 37 */
1373 st_Nil, /* 38 */
1374 st_Nil, /* 39 */
1375 st_Nil, /* 40 */
1376 st_Nil, /* 41 */
1377 st_Nil, /* 42 */
1378 st_Nil, /* 43 */
1379 st_Nil, /* 44 */
1380 st_Nil, /* 45 */
1381 st_Nil, /* 46 */
1382 st_Nil, /* 47 */
1383 st_Nil, /* 48 */
1384 st_Nil, /* 49 */
1385 st_Nil, /* 50 */
1386 st_Nil, /* 51 */
1387 st_Nil, /* 52 */
1388 st_Nil, /* 53 */
1389 st_Nil, /* 54 */
1390 st_Nil, /* 55 */
1391 st_Nil, /* 56 */
1392 st_Nil, /* 57 */
1393 st_Nil, /* 58 */
1394 st_Nil, /* 59 */
1395 st_Nil, /* 60 */
1396 st_Nil, /* 61 */
1397 st_Nil, /* 62 */
1398 st_Nil, /* 63 */
1399 st_Nil, /* 64 */
1400 st_Nil, /* 65 */
1401 st_Nil, /* 66 */
1402 st_Nil, /* 67 */
1403 st_Nil, /* 68 */
1404 st_Nil, /* 69 */
1405 st_Nil, /* 70 */
1406 st_Nil, /* 71 */
1407 st_Nil, /* 72 */
1408 st_Nil, /* 73 */
1409 st_Nil, /* 74 */
1410 st_Nil, /* 75 */
1411 st_Nil, /* 76 */
1412 st_Nil, /* 77 */
1413 st_Nil, /* 78 */
1414 st_Nil, /* 79 */
1415 st_Nil, /* 80 */
1416 st_Nil, /* 81 */
1417 st_Nil, /* 82 */
1418 st_Nil, /* 83 */
1419 st_Nil, /* 84 */
1420 st_Nil, /* 85 */
1421 st_Nil, /* 86 */
1422 st_Nil, /* 87 */
1423 st_Nil, /* 88 */
1424 st_Nil, /* 89 */
1425 st_Nil, /* 90 */
1426 st_Nil, /* 91 */
1427 st_Nil, /* 92 */
1428 st_Nil, /* 93 */
1429 st_Nil, /* 94 */
1430 st_Nil, /* 95 */
1431 st_Nil, /* 96 */
1432 st_Nil, /* 97 */
1433 st_Nil, /* 98 */
1434 st_Nil, /* 99 */
1435 st_Block, /* 100: C_BLOCK block start/end */
1436 st_Proc, /* 101: C_FCN function start/end */
1437 st_End, /* 102: C_EOS end of struct/union/enum */
1438 st_File, /* 103: C_FILE file start */
1439 st_Nil, /* 104: C_LINE line number */
1440 st_Nil, /* 105: C_ALIAS combined type info */
1441 st_Nil, /* 106: C_HIDDEN ??? */
1442 };
1443
1444 /* Map COFF derived types to ECOFF type qualifiers. */
1445 static const tq_t map_coff_derived_type[ (int) DT_MAX ] = {
1446 tq_Nil, /* 0: DT_NON no more qualifiers */
1447 tq_Ptr, /* 1: DT_PTR pointer */
1448 tq_Proc, /* 2: DT_FCN function */
1449 tq_Array, /* 3: DT_ARY array */
1450 };
1451
1452
1453 /* Keep track of different sized allocation requests. */
1454 static alloc_info_t alloc_counts[ (int) alloc_type_last ];
1455
1456 \f
1457 /* Pointers and such to the original symbol table that is read in. */
1458 static struct filehdr orig_file_header; /* global object file header */
1459
1460 static HDRR orig_sym_hdr; /* symbolic header on input */
1461 static char *orig_linenum; /* line numbers */
1462 static DNR *orig_dense; /* dense numbers */
1463 static PDR *orig_procs; /* procedures */
1464 static SYMR *orig_local_syms; /* local symbols */
1465 static OPTR *orig_opt_syms; /* optimization symbols */
1466 static AUXU *orig_aux_syms; /* auxiliary symbols */
1467 static char *orig_local_strs; /* local strings */
1468 static char *orig_ext_strs; /* external strings */
1469 static FDR *orig_files; /* file descriptors */
1470 static symint_t *orig_rfds; /* relative file desc's */
1471 static EXTR *orig_ext_syms; /* external symbols */
1472
1473 /* Macros to convert an index into a given object within the original
1474 symbol table. */
1475 #define CHECK(num,max,str) \
1476 (((unsigned long) num > (unsigned long) max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1477
1478 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1479 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1480 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1481 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1482 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1483 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1484 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1485 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1486 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1487 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1488 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1489
1490 /* Various other statics. */
1491 static HDRR symbolic_header; /* symbolic header */
1492 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1493 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1494 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1495 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1496 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1497 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1498 static unsigned long file_offset = 0; /* current file offset */
1499 static unsigned long max_file_offset = 0; /* maximum file offset */
1500 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1501 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1502 static char *progname = (char *) 0; /* program name for errors */
1503 static const char *input_name = "stdin"; /* name of input file */
1504 static char *object_name = (char *) 0; /* tmp. name of object file */
1505 static char *obj_in_name = (char *) 0; /* name of input object file */
1506 static char *cur_line_start = (char *) 0; /* current line read in */
1507 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1508 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1509 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1510 static long line_number = 0; /* current input line number */
1511 static int debug = 0; /* trace functions */
1512 static int version = 0; /* print version # */
1513 static int verbose = 0;
1514 static int had_errors = 0; /* != 0 if errors were found */
1515 static int rename_output = 0; /* != 0 if rename output file*/
1516 static int delete_input = 0; /* != 0 if delete input after done */
1517 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1518
1519
1520 /* Pseudo symbol to use when putting stabs into the symbol table. */
1521 #ifndef STABS_SYMBOL
1522 #define STABS_SYMBOL "@stabs"
1523 #endif
1524
1525 static const char stabs_symbol[] = STABS_SYMBOL;
1526
1527 \f
1528 /* Forward reference for functions. See the definition for more details. */
1529
1530 #ifndef STATIC
1531 #define STATIC static
1532 #endif
1533
1534 STATIC int out_of_bounds PARAMS ((symint_t, symint_t, const char *, int));
1535
1536 STATIC shash_t *hash_string PARAMS ((const char *,
1537 Ptrdiff_t,
1538 shash_t **,
1539 symint_t *));
1540
1541 STATIC symint_t add_string PARAMS ((varray_t *,
1542 shash_t **,
1543 const char *,
1544 const char *,
1545 shash_t **));
1546
1547 STATIC symint_t add_local_symbol
1548 PARAMS ((const char *,
1549 const char *,
1550 st_t,
1551 sc_t,
1552 symint_t,
1553 symint_t));
1554
1555 STATIC symint_t add_ext_symbol PARAMS ((EXTR *,
1556 int));
1557
1558 STATIC symint_t add_aux_sym_symint
1559 PARAMS ((symint_t));
1560
1561 STATIC symint_t add_aux_sym_rndx
1562 PARAMS ((int, symint_t));
1563
1564 STATIC symint_t add_aux_sym_tir PARAMS ((type_info_t *,
1565 hash_state_t,
1566 thash_t **));
1567
1568 STATIC tag_t * get_tag PARAMS ((const char *,
1569 const char *,
1570 symint_t,
1571 bt_t));
1572
1573 STATIC void add_unknown_tag PARAMS ((tag_t *));
1574
1575 STATIC void add_procedure PARAMS ((const char *,
1576 const char *));
1577
1578 STATIC void initialize_init_file PARAMS ((void));
1579
1580 STATIC void add_file PARAMS ((const char *,
1581 const char *));
1582
1583 STATIC void add_bytes PARAMS ((varray_t *,
1584 char *,
1585 Size_t));
1586
1587 STATIC void add_varray_page PARAMS ((varray_t *));
1588
1589 STATIC void update_headers PARAMS ((void));
1590
1591 STATIC void write_varray PARAMS ((varray_t *, off_t, const char *));
1592 STATIC void write_object PARAMS ((void));
1593 STATIC const char *st_to_string PARAMS ((st_t));
1594 STATIC const char *sc_to_string PARAMS ((sc_t));
1595 STATIC char *read_line PARAMS ((void));
1596 STATIC void parse_input PARAMS ((void));
1597 STATIC void mark_stabs PARAMS ((const char *));
1598 STATIC void parse_begin PARAMS ((const char *));
1599 STATIC void parse_bend PARAMS ((const char *));
1600 STATIC void parse_def PARAMS ((const char *));
1601 STATIC void parse_end PARAMS ((const char *));
1602 STATIC void parse_ent PARAMS ((const char *));
1603 STATIC void parse_file PARAMS ((const char *));
1604 STATIC void parse_stabs_common
1605 PARAMS ((const char *, const char *, const char *));
1606 STATIC void parse_stabs PARAMS ((const char *));
1607 STATIC void parse_stabn PARAMS ((const char *));
1608 STATIC page_t *read_seek PARAMS ((Size_t, off_t, const char *));
1609 STATIC void copy_object PARAMS ((void));
1610
1611 STATIC void catch_signal PARAMS ((int)) ATTRIBUTE_NORETURN;
1612 STATIC page_t *allocate_page PARAMS ((void));
1613
1614 STATIC page_t *allocate_multiple_pages
1615 PARAMS ((Size_t));
1616
1617 STATIC void free_multiple_pages
1618 PARAMS ((page_t *, Size_t));
1619
1620 #ifndef MALLOC_CHECK
1621 STATIC page_t *allocate_cluster
1622 PARAMS ((Size_t));
1623 #endif
1624
1625 STATIC forward_t *allocate_forward PARAMS ((void));
1626 STATIC scope_t *allocate_scope PARAMS ((void));
1627 STATIC shash_t *allocate_shash PARAMS ((void));
1628 STATIC tag_t *allocate_tag PARAMS ((void));
1629 STATIC thash_t *allocate_thash PARAMS ((void));
1630 STATIC thead_t *allocate_thead PARAMS ((void));
1631 STATIC vlinks_t *allocate_vlinks PARAMS ((void));
1632
1633 STATIC void free_forward PARAMS ((forward_t *));
1634 STATIC void free_scope PARAMS ((scope_t *));
1635 STATIC void free_tag PARAMS ((tag_t *));
1636 STATIC void free_thead PARAMS ((thead_t *));
1637
1638 extern char *optarg;
1639 extern int optind;
1640 extern int opterr;
1641 \f
1642 /* List of assembler pseudo ops and beginning sequences that need
1643 special actions. Someday, this should be a hash table, and such,
1644 but for now a linear list of names and calls to memcmp will
1645 do...... */
1646
1647 typedef struct _pseudo_ops {
1648 const char *const name; /* pseudo-op in ascii */
1649 const int len; /* length of name to compare */
1650 void (*const func) PARAMS ((const char *)); /* function to handle line */
1651 } pseudo_ops_t;
1652
1653 static const pseudo_ops_t pseudo_ops[] = {
1654 { "#.def", sizeof("#.def")-1, parse_def },
1655 { "#.begin", sizeof("#.begin")-1, parse_begin },
1656 { "#.bend", sizeof("#.bend")-1, parse_bend },
1657 { ".end", sizeof(".end")-1, parse_end },
1658 { ".ent", sizeof(".ent")-1, parse_ent },
1659 { ".file", sizeof(".file")-1, parse_file },
1660 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1661 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1662 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1663 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1664 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1665 };
1666
1667 \f
1668 /* Command line options for getopt_long. */
1669
1670 static const struct option options[] =
1671 {
1672 { "version", 0, 0, 'V' },
1673 { "verbose", 0, 0, 'v' },
1674 { 0, 0, 0, 0 }
1675 };
1676 \f
1677 /* Add a page to a varray object. */
1678
1679 STATIC void
1680 add_varray_page (vp)
1681 varray_t *vp; /* varray to add page to */
1682 {
1683 vlinks_t *new_links = allocate_vlinks ();
1684
1685 #ifdef MALLOC_CHECK
1686 if (vp->object_size > 1)
1687 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1688 else
1689 #endif
1690 new_links->datum = allocate_page ();
1691
1692 alloc_counts[ (int) alloc_type_varray ].total_alloc++;
1693 alloc_counts[ (int) alloc_type_varray ].total_pages++;
1694
1695 new_links->start_index = vp->num_allocated;
1696 vp->objects_last_page = 0;
1697
1698 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1699 vp->first = vp->last = new_links;
1700 else
1701 { /* 2nd or greater allocation */
1702 new_links->prev = vp->last;
1703 vp->last->next = new_links;
1704 vp->last = new_links;
1705 }
1706 }
1707
1708 \f
1709 /* Compute hash code (from tree.c) */
1710
1711 #define HASHBITS 30
1712
1713 STATIC shash_t *
1714 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1715 const char *text; /* ptr to text to hash */
1716 Ptrdiff_t hash_len; /* length of the text */
1717 shash_t **hash_tbl; /* hash table */
1718 symint_t *ret_hash_index; /* ptr to store hash index */
1719 {
1720 unsigned long hi;
1721 Ptrdiff_t i;
1722 shash_t *ptr;
1723 int first_ch = *text;
1724
1725 hi = hash_len;
1726 for (i = 0; i < hash_len; i++)
1727 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1728
1729 hi &= (1 << HASHBITS) - 1;
1730 hi %= SHASH_SIZE;
1731
1732 if (ret_hash_index != (symint_t *) 0)
1733 *ret_hash_index = hi;
1734
1735 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1736 if ((symint_t) hash_len == ptr->len
1737 && first_ch == ptr->string[0]
1738 && memcmp (text, ptr->string, hash_len) == 0)
1739 break;
1740
1741 return ptr;
1742 }
1743
1744 \f
1745 /* Add a string (and null pad) to one of the string tables. A
1746 consequence of hashing strings, is that we don't let strings
1747 cross page boundaries. The extra nulls will be ignored. */
1748
1749 STATIC symint_t
1750 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1751 varray_t *vp; /* string virtual array */
1752 shash_t **hash_tbl; /* ptr to hash table */
1753 const char *start; /* 1st byte in string */
1754 const char *end_p1; /* 1st byte after string */
1755 shash_t **ret_hash; /* return hash pointer */
1756 {
1757 Ptrdiff_t len = end_p1 - start;
1758 shash_t *hash_ptr;
1759 symint_t hi;
1760
1761 if (len >= (Ptrdiff_t) PAGE_USIZE)
1762 fatal ("string too big (%ld bytes)", (long) len);
1763
1764 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1765 if (hash_ptr == (shash_t *) 0)
1766 {
1767 char *p;
1768
1769 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1770 {
1771 vp->num_allocated
1772 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1773 add_varray_page (vp);
1774 }
1775
1776 hash_ptr = allocate_shash ();
1777 hash_ptr->next = hash_tbl[hi];
1778 hash_tbl[hi] = hash_ptr;
1779
1780 hash_ptr->len = len;
1781 hash_ptr->indx = vp->num_allocated;
1782 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1783
1784 vp->objects_last_page += len+1;
1785 vp->num_allocated += len+1;
1786
1787 while (len-- > 0)
1788 *p++ = *start++;
1789
1790 *p = '\0';
1791 }
1792
1793 if (ret_hash != (shash_t **) 0)
1794 *ret_hash = hash_ptr;
1795
1796 return hash_ptr->indx;
1797 }
1798
1799 \f
1800 /* Add a local symbol. */
1801
1802 STATIC symint_t
1803 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1804 const char *str_start; /* first byte in string */
1805 const char *str_end_p1; /* first byte after string */
1806 st_t type; /* symbol type */
1807 sc_t storage; /* storage class */
1808 symint_t value; /* value of symbol */
1809 symint_t indx; /* index to local/aux. syms */
1810 {
1811 symint_t ret;
1812 SYMR *psym;
1813 scope_t *pscope;
1814 thead_t *ptag_head;
1815 tag_t *ptag;
1816 tag_t *ptag_next;
1817 varray_t *vp = &cur_file_ptr->symbols;
1818 int scope_delta = 0;
1819 shash_t *hash_ptr = (shash_t *) 0;
1820
1821 if (vp->objects_last_page == vp->objects_per_page)
1822 add_varray_page (vp);
1823
1824 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1825
1826 psym->value = value;
1827 psym->st = (unsigned) type;
1828 psym->sc = (unsigned) storage;
1829 psym->index = indx;
1830 psym->iss = (str_start == (const char *) 0)
1831 ? 0
1832 : add_string (&cur_file_ptr->strings,
1833 &cur_file_ptr->shash_head[0],
1834 str_start,
1835 str_end_p1,
1836 &hash_ptr);
1837
1838 ret = vp->num_allocated++;
1839
1840 if (MIPS_IS_STAB (psym))
1841 return ret;
1842
1843 /* Save the symbol within the hash table if this is a static
1844 item, and it has a name. */
1845 if (hash_ptr != (shash_t *) 0
1846 && (type == st_Global || type == st_Static || type == st_Label
1847 || type == st_Proc || type == st_StaticProc))
1848 hash_ptr->sym_ptr = psym;
1849
1850 /* push or pop a scope if appropriate. */
1851 switch (type)
1852 {
1853 default:
1854 break;
1855
1856 case st_File: /* beginning of file */
1857 case st_Proc: /* procedure */
1858 case st_StaticProc: /* static procedure */
1859 case st_Block: /* begin scope */
1860 pscope = allocate_scope ();
1861 pscope->prev = cur_file_ptr->cur_scope;
1862 pscope->lsym = psym;
1863 pscope->lnumber = ret;
1864 pscope->type = type;
1865 cur_file_ptr->cur_scope = pscope;
1866
1867 if (type != st_File)
1868 scope_delta = 1;
1869
1870 /* For every block type except file, struct, union, or
1871 enumeration blocks, push a level on the tag stack. We omit
1872 file types, so that tags can span file boundaries. */
1873 if (type != st_File && storage != sc_Info)
1874 {
1875 ptag_head = allocate_thead ();
1876 ptag_head->first_tag = 0;
1877 ptag_head->prev = cur_tag_head;
1878 cur_tag_head = ptag_head;
1879 }
1880 break;
1881
1882 case st_End:
1883 pscope = cur_file_ptr->cur_scope;
1884 if (pscope == (scope_t *) 0)
1885 error ("internal error, too many st_End's");
1886
1887 else
1888 {
1889 st_t begin_type = (st_t) pscope->lsym->st;
1890
1891 if (begin_type != st_File)
1892 scope_delta = -1;
1893
1894 /* Except for file, structure, union, or enumeration end
1895 blocks remove all tags created within this scope. */
1896 if (begin_type != st_File && storage != sc_Info)
1897 {
1898 ptag_head = cur_tag_head;
1899 cur_tag_head = ptag_head->prev;
1900
1901 for (ptag = ptag_head->first_tag;
1902 ptag != (tag_t *) 0;
1903 ptag = ptag_next)
1904 {
1905 if (ptag->forward_ref != (forward_t *) 0)
1906 add_unknown_tag (ptag);
1907
1908 ptag_next = ptag->same_block;
1909 ptag->hash_ptr->tag_ptr = ptag->same_name;
1910 free_tag (ptag);
1911 }
1912
1913 free_thead (ptag_head);
1914 }
1915
1916 cur_file_ptr->cur_scope = pscope->prev;
1917 psym->index = pscope->lnumber; /* blk end gets begin sym # */
1918
1919 if (storage != sc_Info)
1920 psym->iss = pscope->lsym->iss; /* blk end gets same name */
1921
1922 if (begin_type == st_File || begin_type == st_Block)
1923 pscope->lsym->index = ret+1; /* block begin gets next sym # */
1924
1925 /* Functions push two or more aux words as follows:
1926 1st word: index+1 of the end symbol
1927 2nd word: type of the function (plus any aux words needed).
1928 Also, tie the external pointer back to the function begin symbol. */
1929 else
1930 {
1931 symint_t type;
1932 pscope->lsym->index = add_aux_sym_symint (ret+1);
1933 type = add_aux_sym_tir (&last_func_type_info,
1934 hash_no,
1935 &cur_file_ptr->thash_head[0]);
1936 if (last_func_eptr)
1937 {
1938 last_func_eptr->ifd = cur_file_ptr->file_index;
1939
1940 /* The index for an external st_Proc symbol is the index
1941 of the st_Proc symbol in the local symbol table. */
1942 last_func_eptr->asym.index = psym->index;
1943 }
1944 }
1945
1946 free_scope (pscope);
1947 }
1948 }
1949
1950 cur_file_ptr->nested_scopes += scope_delta;
1951
1952 if (debug && type != st_File
1953 && (debug > 2 || type == st_Block || type == st_End
1954 || type == st_Proc || type == st_StaticProc))
1955 {
1956 const char *sc_str = sc_to_string (storage);
1957 const char *st_str = st_to_string (type);
1958 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
1959
1960 fprintf (stderr,
1961 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
1962 value, depth, sc_str);
1963
1964 if (str_start && str_end_p1 - str_start > 0)
1965 fprintf (stderr, " st= %-11s name= %.*s\n",
1966 st_str, (int) (str_end_p1 - str_start), str_start);
1967 else
1968 {
1969 Size_t len = strlen (st_str);
1970 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
1971 }
1972 }
1973
1974 return ret;
1975 }
1976
1977 \f
1978 /* Add an external symbol. */
1979
1980 STATIC symint_t
1981 add_ext_symbol (esym, ifd)
1982 EXTR *esym; /* symbol pointer */
1983 int ifd; /* file index */
1984 {
1985 const char *str_start; /* first byte in string */
1986 const char *str_end_p1; /* first byte after string */
1987 EXTR *psym;
1988 varray_t *vp = &ext_symbols;
1989 shash_t *hash_ptr = (shash_t *) 0;
1990
1991 str_start = ORIG_ESTRS (esym->asym.iss);
1992 str_end_p1 = str_start + strlen (str_start);
1993
1994 if (debug > 1)
1995 {
1996 long value = esym->asym.value;
1997 const char *sc_str = sc_to_string (esym->asym.sc);
1998 const char *st_str = st_to_string (esym->asym.st);
1999
2000 fprintf (stderr,
2001 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2002 value, ifd, sc_str);
2003
2004 if (str_start && str_end_p1 - str_start > 0)
2005 fprintf (stderr, " st= %-11s name= %.*s\n",
2006 st_str, (int) (str_end_p1 - str_start), str_start);
2007 else
2008 fprintf (stderr, " st= %s\n", st_str);
2009 }
2010
2011 if (vp->objects_last_page == vp->objects_per_page)
2012 add_varray_page (vp);
2013
2014 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2015
2016 *psym = *esym;
2017 psym->ifd = ifd;
2018 psym->asym.index = indexNil;
2019 psym->asym.iss = (str_start == (const char *) 0)
2020 ? 0
2021 : add_string (&ext_strings,
2022 &ext_str_hash[0],
2023 str_start,
2024 str_end_p1,
2025 &hash_ptr);
2026
2027 hash_ptr->esym_ptr = psym;
2028 return vp->num_allocated++;
2029 }
2030
2031 \f
2032 /* Add an auxiliary symbol (passing a symint). */
2033
2034 STATIC symint_t
2035 add_aux_sym_symint (aux_word)
2036 symint_t aux_word; /* auxiliary information word */
2037 {
2038 AUXU *aux_ptr;
2039 efdr_t *file_ptr = cur_file_ptr;
2040 varray_t *vp = &file_ptr->aux_syms;
2041
2042 if (vp->objects_last_page == vp->objects_per_page)
2043 add_varray_page (vp);
2044
2045 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2046 aux_ptr->isym = aux_word;
2047
2048 return vp->num_allocated++;
2049 }
2050
2051
2052 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2053
2054 STATIC symint_t
2055 add_aux_sym_rndx (file_index, sym_index)
2056 int file_index;
2057 symint_t sym_index;
2058 {
2059 AUXU *aux_ptr;
2060 efdr_t *file_ptr = cur_file_ptr;
2061 varray_t *vp = &file_ptr->aux_syms;
2062
2063 if (vp->objects_last_page == vp->objects_per_page)
2064 add_varray_page (vp);
2065
2066 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2067 aux_ptr->rndx.rfd = file_index;
2068 aux_ptr->rndx.index = sym_index;
2069
2070 return vp->num_allocated++;
2071 }
2072
2073 \f
2074 /* Add an auxiliary symbol (passing the basic type and possibly
2075 type qualifiers). */
2076
2077 STATIC symint_t
2078 add_aux_sym_tir (t, state, hash_tbl)
2079 type_info_t *t; /* current type information */
2080 hash_state_t state; /* whether to hash type or not */
2081 thash_t **hash_tbl; /* pointer to hash table to use */
2082 {
2083 AUXU *aux_ptr;
2084 efdr_t *file_ptr = cur_file_ptr;
2085 varray_t *vp = &file_ptr->aux_syms;
2086 static AUXU init_aux;
2087 symint_t ret;
2088 int i;
2089 AUXU aux;
2090
2091 aux = init_aux;
2092 aux.ti.bt = (int) t->basic_type;
2093 aux.ti.continued = 0;
2094 aux.ti.fBitfield = t->bitfield;
2095
2096 aux.ti.tq0 = (int) t->type_qualifiers[0];
2097 aux.ti.tq1 = (int) t->type_qualifiers[1];
2098 aux.ti.tq2 = (int) t->type_qualifiers[2];
2099 aux.ti.tq3 = (int) t->type_qualifiers[3];
2100 aux.ti.tq4 = (int) t->type_qualifiers[4];
2101 aux.ti.tq5 = (int) t->type_qualifiers[5];
2102
2103
2104 /* For anything that adds additional information, we must not hash,
2105 so check here, and reset our state. */
2106
2107 if (state != hash_no
2108 && (t->type_qualifiers[0] == tq_Array
2109 || t->type_qualifiers[1] == tq_Array
2110 || t->type_qualifiers[2] == tq_Array
2111 || t->type_qualifiers[3] == tq_Array
2112 || t->type_qualifiers[4] == tq_Array
2113 || t->type_qualifiers[5] == tq_Array
2114 || t->basic_type == bt_Struct
2115 || t->basic_type == bt_Union
2116 || t->basic_type == bt_Enum
2117 || t->bitfield
2118 || t->num_dims > 0))
2119 state = hash_no;
2120
2121 /* See if we can hash this type, and save some space, but some types
2122 can't be hashed (because they contain arrays or continuations),
2123 and others can be put into the hash list, but cannot use existing
2124 types because other aux entries precede this one. */
2125
2126 if (state != hash_no)
2127 {
2128 thash_t *hash_ptr;
2129 symint_t hi;
2130
2131 hi = aux.isym & ((1 << HASHBITS) - 1);
2132 hi %= THASH_SIZE;
2133
2134 for (hash_ptr = hash_tbl[hi];
2135 hash_ptr != (thash_t *) 0;
2136 hash_ptr = hash_ptr->next)
2137 {
2138 if (aux.isym == hash_ptr->type.isym)
2139 break;
2140 }
2141
2142 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2143 return hash_ptr->indx;
2144
2145 if (hash_ptr == (thash_t *) 0)
2146 {
2147 hash_ptr = allocate_thash ();
2148 hash_ptr->next = hash_tbl[hi];
2149 hash_ptr->type = aux;
2150 hash_ptr->indx = vp->num_allocated;
2151 hash_tbl[hi] = hash_ptr;
2152 }
2153 }
2154
2155 /* Everything is set up, add the aux symbol. */
2156 if (vp->objects_last_page == vp->objects_per_page)
2157 add_varray_page (vp);
2158
2159 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2160 *aux_ptr = aux;
2161
2162 ret = vp->num_allocated++;
2163
2164 /* Add bitfield length if it exists.
2165
2166 NOTE: Mips documentation claims bitfield goes at the end of the
2167 AUX record, but the DECstation compiler emits it here.
2168 (This would only make a difference for enum bitfields.)
2169
2170 Also note: We use the last size given since gcc may emit 2
2171 for an enum bitfield. */
2172
2173 if (t->bitfield)
2174 (void) add_aux_sym_symint ((symint_t) t->sizes[t->num_sizes-1]);
2175
2176
2177 /* Add tag information if needed. Structure, union, and enum
2178 references add 2 aux symbols: a [file index, symbol index]
2179 pointer to the structure type, and the current file index. */
2180
2181 if (t->basic_type == bt_Struct
2182 || t->basic_type == bt_Union
2183 || t->basic_type == bt_Enum)
2184 {
2185 symint_t file_index = t->tag_ptr->ifd;
2186 symint_t sym_index = t->tag_ptr->indx;
2187
2188 if (t->unknown_tag)
2189 {
2190 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2191 (void) add_aux_sym_symint ((symint_t)-1);
2192 }
2193 else if (sym_index != indexNil)
2194 {
2195 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2196 (void) add_aux_sym_symint (file_index);
2197 }
2198 else
2199 {
2200 forward_t *forward_ref = allocate_forward ();
2201
2202 forward_ref->type_ptr = aux_ptr;
2203 forward_ref->next = t->tag_ptr->forward_ref;
2204 t->tag_ptr->forward_ref = forward_ref;
2205
2206 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2207 forward_ref->index_ptr
2208 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2209
2210 (void) add_aux_sym_symint (file_index);
2211 forward_ref->ifd_ptr
2212 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2213 }
2214 }
2215
2216 /* Add information about array bounds if they exist. */
2217 for (i = 0; i < t->num_dims; i++)
2218 {
2219 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2220 cur_file_ptr->int_type);
2221
2222 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2223 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2224 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2225 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2226 ? 0
2227 : (t->sizes[i] * 8) / t->dimensions[i]);
2228 };
2229
2230 /* NOTE: Mips documentation claims that the bitfield width goes here.
2231 But it needs to be emitted earlier. */
2232
2233 return ret;
2234 }
2235
2236 \f
2237 /* Add a tag to the tag table (unless it already exists). */
2238
2239 STATIC tag_t *
2240 get_tag (tag_start, tag_end_p1, indx, basic_type)
2241 const char *tag_start; /* 1st byte of tag name */
2242 const char *tag_end_p1; /* 1st byte after tag name */
2243 symint_t indx; /* index of tag start block */
2244 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2245 {
2246 shash_t *hash_ptr;
2247 tag_t *tag_ptr;
2248 hash_ptr = hash_string (tag_start,
2249 tag_end_p1 - tag_start,
2250 &tag_hash[0],
2251 (symint_t *) 0);
2252
2253 if (hash_ptr != (shash_t *) 0
2254 && hash_ptr->tag_ptr != (tag_t *) 0)
2255 {
2256 tag_ptr = hash_ptr->tag_ptr;
2257 if (indx != indexNil)
2258 {
2259 tag_ptr->basic_type = basic_type;
2260 tag_ptr->ifd = cur_file_ptr->file_index;
2261 tag_ptr->indx = indx;
2262 }
2263 return tag_ptr;
2264 }
2265
2266 (void) add_string (&tag_strings,
2267 &tag_hash[0],
2268 tag_start,
2269 tag_end_p1,
2270 &hash_ptr);
2271
2272 tag_ptr = allocate_tag ();
2273 tag_ptr->forward_ref = (forward_t *) 0;
2274 tag_ptr->hash_ptr = hash_ptr;
2275 tag_ptr->same_name = hash_ptr->tag_ptr;
2276 tag_ptr->basic_type = basic_type;
2277 tag_ptr->indx = indx;
2278 tag_ptr->ifd = (indx == indexNil
2279 ? (symint_t) -1 : cur_file_ptr->file_index);
2280 tag_ptr->same_block = cur_tag_head->first_tag;
2281
2282 cur_tag_head->first_tag = tag_ptr;
2283 hash_ptr->tag_ptr = tag_ptr;
2284
2285 return tag_ptr;
2286 }
2287
2288 \f
2289 /* Add an unknown {struct, union, enum} tag. */
2290
2291 STATIC void
2292 add_unknown_tag (ptag)
2293 tag_t *ptag; /* pointer to tag information */
2294 {
2295 shash_t *hash_ptr = ptag->hash_ptr;
2296 char *name_start = hash_ptr->string;
2297 char *name_end_p1 = name_start + hash_ptr->len;
2298 forward_t *f_next = ptag->forward_ref;
2299 forward_t *f_cur;
2300 int sym_index;
2301 int file_index = cur_file_ptr->file_index;
2302
2303 if (debug > 1)
2304 {
2305 const char *agg_type = "{unknown aggregate type}";
2306 switch (ptag->basic_type)
2307 {
2308 case bt_Struct: agg_type = "struct"; break;
2309 case bt_Union: agg_type = "union"; break;
2310 case bt_Enum: agg_type = "enum"; break;
2311 default: break;
2312 }
2313
2314 fprintf (stderr, "unknown %s %.*s found\n",
2315 agg_type, (int) hash_ptr->len, name_start);
2316 }
2317
2318 sym_index = add_local_symbol (name_start,
2319 name_end_p1,
2320 st_Block,
2321 sc_Info,
2322 (symint_t) 0,
2323 (symint_t) 0);
2324
2325 (void) add_local_symbol (name_start,
2326 name_end_p1,
2327 st_End,
2328 sc_Info,
2329 (symint_t) 0,
2330 (symint_t) 0);
2331
2332 while (f_next != (forward_t *) 0)
2333 {
2334 f_cur = f_next;
2335 f_next = f_next->next;
2336
2337 f_cur->ifd_ptr->isym = file_index;
2338 f_cur->index_ptr->rndx.index = sym_index;
2339
2340 free_forward (f_cur);
2341 }
2342
2343 return;
2344 }
2345
2346 \f
2347 /* Add a procedure to the current file's list of procedures, and record
2348 this is the current procedure. If the assembler created a PDR for
2349 this procedure, use that to initialize the current PDR. */
2350
2351 STATIC void
2352 add_procedure (func_start, func_end_p1)
2353 const char *func_start; /* 1st byte of func name */
2354 const char *func_end_p1; /* 1st byte after func name */
2355 {
2356 PDR *new_proc_ptr;
2357 efdr_t *file_ptr = cur_file_ptr;
2358 varray_t *vp = &file_ptr->procs;
2359 symint_t value = 0;
2360 st_t proc_type = st_Proc;
2361 shash_t *shash_ptr = hash_string (func_start,
2362 func_end_p1 - func_start,
2363 &orig_str_hash[0],
2364 (symint_t *) 0);
2365
2366 if (debug)
2367 fputc ('\n', stderr);
2368
2369 if (vp->objects_last_page == vp->objects_per_page)
2370 add_varray_page (vp);
2371
2372 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2373
2374 vp->num_allocated++;
2375
2376
2377 /* Did the assembler create this procedure? If so, get the PDR information. */
2378 cur_oproc_ptr = (PDR *) 0;
2379 if (shash_ptr != (shash_t *) 0)
2380 {
2381 PDR *old_proc_ptr = shash_ptr->proc_ptr;
2382 SYMR *sym_ptr = shash_ptr->sym_ptr;
2383
2384 if (old_proc_ptr != (PDR *) 0
2385 && sym_ptr != (SYMR *) 0
2386 && ((st_t) sym_ptr->st == st_Proc || (st_t) sym_ptr->st == st_StaticProc))
2387 {
2388 cur_oproc_begin = sym_ptr;
2389 cur_oproc_end = shash_ptr->end_ptr;
2390 value = sym_ptr->value;
2391
2392 cur_oproc_ptr = old_proc_ptr;
2393 proc_type = (st_t) sym_ptr->st;
2394 *new_proc_ptr = *old_proc_ptr; /* initialize */
2395 }
2396 }
2397
2398 if (cur_oproc_ptr == (PDR *) 0)
2399 error ("did not find a PDR block for %.*s",
2400 (int) (func_end_p1 - func_start), func_start);
2401
2402 /* Determine the start of symbols. */
2403 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2404
2405 /* Push the start of the function. */
2406 (void) add_local_symbol (func_start, func_end_p1,
2407 proc_type, sc_Text,
2408 value,
2409 (symint_t) 0);
2410 }
2411
2412 \f
2413 /* Initialize the init_file structure. */
2414
2415 STATIC void
2416 initialize_init_file ()
2417 {
2418 memset ((void*) &init_file, 0, sizeof (init_file));
2419
2420 init_file.fdr.lang = langC;
2421 init_file.fdr.fMerge = 1;
2422 init_file.fdr.glevel = GLEVEL_2;
2423
2424 #ifdef HOST_WORDS_BIG_ENDIAN
2425 init_file.fdr.fBigendian = 1;
2426 #endif
2427
2428 INITIALIZE_VARRAY (&init_file.strings, char);
2429 INITIALIZE_VARRAY (&init_file.symbols, SYMR);
2430 INITIALIZE_VARRAY (&init_file.procs, PDR);
2431 INITIALIZE_VARRAY (&init_file.aux_syms, AUXU);
2432
2433 init_file_initialized = 1;
2434 }
2435
2436 /* Add a new filename, and set up all of the file relative
2437 virtual arrays (strings, symbols, aux syms, etc.). Record
2438 where the current file structure lives. */
2439
2440 STATIC void
2441 add_file (file_start, file_end_p1)
2442 const char *file_start; /* first byte in string */
2443 const char *file_end_p1; /* first byte after string */
2444 {
2445 static char zero_bytes[2] = { '\0', '\0' };
2446
2447 Ptrdiff_t len = file_end_p1 - file_start;
2448 int first_ch = *file_start;
2449 efdr_t *file_ptr;
2450
2451 if (debug)
2452 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2453
2454 /* See if the file has already been created. */
2455 for (file_ptr = first_file;
2456 file_ptr != (efdr_t *) 0;
2457 file_ptr = file_ptr->next_file)
2458 {
2459 if (first_ch == file_ptr->name[0]
2460 && file_ptr->name[len] == '\0'
2461 && memcmp (file_start, file_ptr->name, len) == 0)
2462 {
2463 cur_file_ptr = file_ptr;
2464 break;
2465 }
2466 }
2467
2468 /* If this is a new file, create it. */
2469 if (file_ptr == (efdr_t *) 0)
2470 {
2471 if (file_desc.objects_last_page == file_desc.objects_per_page)
2472 add_varray_page (&file_desc);
2473
2474 if (! init_file_initialized)
2475 initialize_init_file ();
2476
2477 file_ptr = cur_file_ptr
2478 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2479 *file_ptr = init_file;
2480
2481 file_ptr->file_index = file_desc.num_allocated++;
2482
2483 /* Allocate the string hash table. */
2484 file_ptr->shash_head = (shash_t **) allocate_page ();
2485
2486 /* Make sure 0 byte in string table is null */
2487 add_string (&file_ptr->strings,
2488 &file_ptr->shash_head[0],
2489 &zero_bytes[0],
2490 &zero_bytes[0],
2491 (shash_t **) 0);
2492
2493 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2494 fatal ("filename goes over one page boundary");
2495
2496 /* Push the start of the filename. We assume that the filename
2497 will be stored at string offset 1. */
2498 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2499 (symint_t) 0, (symint_t) 0);
2500 file_ptr->fdr.rss = 1;
2501 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2502 file_ptr->name_len = file_end_p1 - file_start;
2503
2504 /* Update the linked list of file descriptors. */
2505 *last_file_ptr = file_ptr;
2506 last_file_ptr = &file_ptr->next_file;
2507
2508 /* Add void & int types to the file (void should be first to catch
2509 errant 0's within the index fields). */
2510 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2511 hash_yes,
2512 &cur_file_ptr->thash_head[0]);
2513
2514 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2515 hash_yes,
2516 &cur_file_ptr->thash_head[0]);
2517 }
2518 }
2519
2520 \f
2521 /* Add a stream of random bytes to a varray. */
2522
2523 STATIC void
2524 add_bytes (vp, input_ptr, nitems)
2525 varray_t *vp; /* virtual array to add too */
2526 char *input_ptr; /* start of the bytes */
2527 Size_t nitems; /* # items to move */
2528 {
2529 Size_t move_items;
2530 Size_t move_bytes;
2531 char *ptr;
2532
2533 while (nitems > 0)
2534 {
2535 if (vp->objects_last_page >= vp->objects_per_page)
2536 add_varray_page (vp);
2537
2538 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2539 move_items = vp->objects_per_page - vp->objects_last_page;
2540 if (move_items > nitems)
2541 move_items = nitems;
2542
2543 move_bytes = move_items * vp->object_size;
2544 nitems -= move_items;
2545
2546 if (move_bytes >= 32)
2547 {
2548 (void) memcpy (ptr, input_ptr, move_bytes);
2549 input_ptr += move_bytes;
2550 }
2551 else
2552 {
2553 while (move_bytes-- > 0)
2554 *ptr++ = *input_ptr++;
2555 }
2556 }
2557 }
2558
2559 \f
2560 /* Convert storage class to string. */
2561
2562 STATIC const char *
2563 sc_to_string (storage_class)
2564 sc_t storage_class;
2565 {
2566 switch (storage_class)
2567 {
2568 case sc_Nil: return "Nil,";
2569 case sc_Text: return "Text,";
2570 case sc_Data: return "Data,";
2571 case sc_Bss: return "Bss,";
2572 case sc_Register: return "Register,";
2573 case sc_Abs: return "Abs,";
2574 case sc_Undefined: return "Undefined,";
2575 case sc_CdbLocal: return "CdbLocal,";
2576 case sc_Bits: return "Bits,";
2577 case sc_CdbSystem: return "CdbSystem,";
2578 case sc_RegImage: return "RegImage,";
2579 case sc_Info: return "Info,";
2580 case sc_UserStruct: return "UserStruct,";
2581 case sc_SData: return "SData,";
2582 case sc_SBss: return "SBss,";
2583 case sc_RData: return "RData,";
2584 case sc_Var: return "Var,";
2585 case sc_Common: return "Common,";
2586 case sc_SCommon: return "SCommon,";
2587 case sc_VarRegister: return "VarRegister,";
2588 case sc_Variant: return "Variant,";
2589 case sc_SUndefined: return "SUndefined,";
2590 case sc_Init: return "Init,";
2591 case sc_Max: return "Max,";
2592 }
2593
2594 return "???,";
2595 }
2596
2597 \f
2598 /* Convert symbol type to string. */
2599
2600 STATIC const char *
2601 st_to_string (symbol_type)
2602 st_t symbol_type;
2603 {
2604 switch (symbol_type)
2605 {
2606 case st_Nil: return "Nil,";
2607 case st_Global: return "Global,";
2608 case st_Static: return "Static,";
2609 case st_Param: return "Param,";
2610 case st_Local: return "Local,";
2611 case st_Label: return "Label,";
2612 case st_Proc: return "Proc,";
2613 case st_Block: return "Block,";
2614 case st_End: return "End,";
2615 case st_Member: return "Member,";
2616 case st_Typedef: return "Typedef,";
2617 case st_File: return "File,";
2618 case st_RegReloc: return "RegReloc,";
2619 case st_Forward: return "Forward,";
2620 case st_StaticProc: return "StaticProc,";
2621 case st_Constant: return "Constant,";
2622 case st_Str: return "String,";
2623 case st_Number: return "Number,";
2624 case st_Expr: return "Expr,";
2625 case st_Type: return "Type,";
2626 case st_Max: return "Max,";
2627 }
2628
2629 return "???,";
2630 }
2631
2632 \f
2633 /* Read a line from standard input, and return the start of the buffer
2634 (which is grows if the line is too big). We split lines at the
2635 semi-colon, and return each logical line independently. */
2636
2637 STATIC char *
2638 read_line ()
2639 {
2640 static int line_split_p = 0;
2641 int string_p = 0;
2642 int comment_p = 0;
2643 int ch;
2644 char *ptr;
2645
2646 if (cur_line_start == (char *) 0)
2647 { /* allocate initial page */
2648 cur_line_start = (char *) allocate_page ();
2649 cur_line_alloc = PAGE_SIZE;
2650 }
2651
2652 if (!line_split_p)
2653 line_number++;
2654
2655 line_split_p = 0;
2656 cur_line_nbytes = 0;
2657
2658 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2659 {
2660 if (++cur_line_nbytes >= cur_line_alloc-1)
2661 {
2662 int num_pages = cur_line_alloc / PAGE_SIZE;
2663 char *old_buffer = cur_line_start;
2664
2665 cur_line_alloc += PAGE_SIZE;
2666 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2667 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2668
2669 ptr = cur_line_start + cur_line_nbytes - 1;
2670 }
2671
2672 if (ch == '\n')
2673 {
2674 *ptr++ = '\n';
2675 *ptr = '\0';
2676 cur_line_ptr = cur_line_start;
2677 return cur_line_ptr;
2678 }
2679
2680 else if (ch == '\0')
2681 error ("null character found in input");
2682
2683 else if (!comment_p)
2684 {
2685 if (ch == '"')
2686 string_p = !string_p;
2687
2688 else if (ch == '#')
2689 comment_p++;
2690
2691 else if (ch == ';' && !string_p)
2692 {
2693 line_split_p = 1;
2694 *ptr++ = '\n';
2695 *ptr = '\0';
2696 cur_line_ptr = cur_line_start;
2697 return cur_line_ptr;
2698 }
2699 }
2700 }
2701
2702 if (ferror (stdin))
2703 pfatal_with_name (input_name);
2704
2705 cur_line_ptr = (char *) 0;
2706 return (char *) 0;
2707 }
2708
2709 \f
2710 /* Parse #.begin directives which have a label as the first argument
2711 which gives the location of the start of the block. */
2712
2713 STATIC void
2714 parse_begin (start)
2715 const char *start; /* start of directive */
2716 {
2717 const char *end_p1; /* end of label */
2718 int ch;
2719 shash_t *hash_ptr; /* hash pointer to lookup label */
2720
2721 if (cur_file_ptr == (efdr_t *) 0)
2722 {
2723 error ("#.begin directive without a preceding .file directive");
2724 return;
2725 }
2726
2727 if (cur_proc_ptr == (PDR *) 0)
2728 {
2729 error ("#.begin directive without a preceding .ent directive");
2730 return;
2731 }
2732
2733 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2734 ;
2735
2736 hash_ptr = hash_string (start,
2737 end_p1 - start,
2738 &orig_str_hash[0],
2739 (symint_t *) 0);
2740
2741 if (hash_ptr == (shash_t *) 0)
2742 {
2743 error ("label %.*s not found for #.begin",
2744 (int) (end_p1 - start), start);
2745 return;
2746 }
2747
2748 if (cur_oproc_begin == (SYMR *) 0)
2749 {
2750 error ("procedure table %.*s not found for #.begin",
2751 (int) (end_p1 - start), start);
2752 return;
2753 }
2754
2755 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2756 st_Block, sc_Text,
2757 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2758 (symint_t) 0);
2759 }
2760
2761 \f
2762 /* Parse #.bend directives which have a label as the first argument
2763 which gives the location of the end of the block. */
2764
2765 STATIC void
2766 parse_bend (start)
2767 const char *start; /* start of directive */
2768 {
2769 const char *end_p1; /* end of label */
2770 int ch;
2771 shash_t *hash_ptr; /* hash pointer to lookup label */
2772
2773 if (cur_file_ptr == (efdr_t *) 0)
2774 {
2775 error ("#.begin directive without a preceding .file directive");
2776 return;
2777 }
2778
2779 if (cur_proc_ptr == (PDR *) 0)
2780 {
2781 error ("#.bend directive without a preceding .ent directive");
2782 return;
2783 }
2784
2785 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2786 ;
2787
2788 hash_ptr = hash_string (start,
2789 end_p1 - start,
2790 &orig_str_hash[0],
2791 (symint_t *) 0);
2792
2793 if (hash_ptr == (shash_t *) 0)
2794 {
2795 error ("label %.*s not found for #.bend", (int) (end_p1 - start), start);
2796 return;
2797 }
2798
2799 if (cur_oproc_begin == (SYMR *) 0)
2800 {
2801 error ("procedure table %.*s not found for #.bend",
2802 (int) (end_p1 - start), start);
2803 return;
2804 }
2805
2806 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2807 st_End, sc_Text,
2808 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2809 (symint_t) 0);
2810 }
2811
2812 \f
2813 /* Parse #.def directives, which are contain standard COFF subdirectives
2814 to describe the debugging format. These subdirectives include:
2815
2816 .scl specify storage class
2817 .val specify a value
2818 .endef specify end of COFF directives
2819 .type specify the type
2820 .size specify the size of an array
2821 .dim specify an array dimension
2822 .tag specify a tag for a struct, union, or enum. */
2823
2824 STATIC void
2825 parse_def (name_start)
2826 const char *name_start; /* start of directive */
2827 {
2828 const char *dir_start; /* start of current directive*/
2829 const char *dir_end_p1; /* end+1 of current directive*/
2830 const char *arg_start; /* start of current argument */
2831 const char *arg_end_p1; /* end+1 of current argument */
2832 const char *name_end_p1; /* end+1 of label */
2833 const char *tag_start = 0; /* start of tag name */
2834 const char *tag_end_p1 = 0; /* end+1 of tag name */
2835 sc_t storage_class = sc_Nil;
2836 st_t symbol_type = st_Nil;
2837 type_info_t t;
2838 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2839 int is_function = 0; /* != 0 if function */
2840 symint_t value = 0;
2841 symint_t indx = cur_file_ptr->void_type;
2842 int error_line = 0;
2843 symint_t arg_number;
2844 symint_t temp_array[ N_TQ ];
2845 int arg_was_number;
2846 int ch, i;
2847 Ptrdiff_t len;
2848
2849 static int inside_enumeration = 0; /* is this an enumeration? */
2850
2851
2852 /* Initialize the type information. */
2853 t = type_info_init;
2854
2855
2856 /* Search for the end of the name being defined. */
2857 /* Allow spaces and such in names for G++ templates, which produce stabs
2858 that look like:
2859
2860 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2861
2862 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2863 ;
2864
2865 if (ch == '\0')
2866 {
2867 error_line = __LINE__;
2868 saber_stop ();
2869 goto bomb_out;
2870 }
2871
2872 /* Parse the remaining subdirectives now. */
2873 dir_start = name_end_p1+1;
2874 for (;;)
2875 {
2876 while ((ch = *dir_start) == ' ' || ch == '\t')
2877 ++dir_start;
2878
2879 if (ch != '.')
2880 {
2881 error_line = __LINE__;
2882 saber_stop ();
2883 goto bomb_out;
2884 }
2885
2886 /* Are we done? */
2887 if (dir_start[1] == 'e'
2888 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2889 break;
2890
2891 /* Pick up the subdirective now. */
2892 for (dir_end_p1 = dir_start+1;
2893 (ch = *dir_end_p1) != ' ' && ch != '\t';
2894 dir_end_p1++)
2895 {
2896 if (ch == '\0' || ISSPACE (ch))
2897 {
2898 error_line = __LINE__;
2899 saber_stop ();
2900 goto bomb_out;
2901 }
2902 }
2903
2904 /* Pick up the subdirective argument now. */
2905 arg_was_number = arg_number = 0;
2906 arg_end_p1 = 0;
2907 arg_start = dir_end_p1+1;
2908 ch = *arg_start;
2909 while (ch == ' ' || ch == '\t')
2910 ch = *++arg_start;
2911
2912 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2913 {
2914 int ch2;
2915 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2916 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2917 arg_was_number++;
2918 }
2919
2920 else if (ch == '\0' || ISSPACE (ch))
2921 {
2922 error_line = __LINE__;
2923 saber_stop ();
2924 goto bomb_out;
2925 }
2926
2927 if (!arg_was_number)
2928 {
2929 /* Allow spaces and such in names for G++ templates. */
2930 for (arg_end_p1 = arg_start+1;
2931 (ch = *arg_end_p1) != ';' && ch != '\0';
2932 arg_end_p1++)
2933 ;
2934
2935 if (ch == '\0')
2936 {
2937 error_line = __LINE__;
2938 saber_stop ();
2939 goto bomb_out;
2940 }
2941 }
2942
2943 /* Classify the directives now. */
2944 len = dir_end_p1 - dir_start;
2945 switch (dir_start[1])
2946 {
2947 default:
2948 error_line = __LINE__;
2949 saber_stop ();
2950 goto bomb_out;
2951
2952 case 'd':
2953 if (len == sizeof (".dim")-1
2954 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
2955 && arg_was_number)
2956 {
2957 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
2958
2959 *t_ptr = arg_number;
2960 while (*arg_end_p1 == ',' && arg_was_number)
2961 {
2962 arg_start = arg_end_p1+1;
2963 ch = *arg_start;
2964 while (ch == ' ' || ch == '\t')
2965 ch = *++arg_start;
2966
2967 arg_was_number = 0;
2968 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2969 {
2970 int ch2;
2971 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2972 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
2973 arg_was_number++;
2974
2975 if (t_ptr == &temp_array[0])
2976 {
2977 error_line = __LINE__;
2978 saber_stop ();
2979 goto bomb_out;
2980 }
2981
2982 *--t_ptr = arg_number;
2983 }
2984 }
2985
2986 /* Reverse order of dimensions. */
2987 while (t_ptr <= &temp_array[ N_TQ-1 ])
2988 {
2989 if (t.num_dims >= N_TQ-1)
2990 {
2991 error_line = __LINE__;
2992 saber_stop ();
2993 goto bomb_out;
2994 }
2995
2996 t.dimensions[ t.num_dims++ ] = *t_ptr++;
2997 }
2998 break;
2999 }
3000 else
3001 {
3002 error_line = __LINE__;
3003 saber_stop ();
3004 goto bomb_out;
3005 }
3006
3007
3008 case 's':
3009 if (len == sizeof (".scl")-1
3010 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3011 && arg_was_number
3012 && arg_number < ((symint_t) C_MAX))
3013 {
3014 /* If the symbol is a static or external, we have
3015 already gotten the appropriate type and class, so
3016 make sure we don't override those values. This is
3017 needed because there are some type and classes that
3018 are not in COFF, such as short data, etc. */
3019 if (symbol_type == st_Nil)
3020 {
3021 symbol_type = map_coff_sym_type[arg_number];
3022 storage_class = map_coff_storage [arg_number];
3023 }
3024 break;
3025 }
3026
3027 else if (len == sizeof (".size")-1
3028 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3029 && arg_was_number)
3030 {
3031 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3032
3033 *t_ptr = arg_number;
3034 while (*arg_end_p1 == ',' && arg_was_number)
3035 {
3036 arg_start = arg_end_p1+1;
3037 ch = *arg_start;
3038 while (ch == ' ' || ch == '\t')
3039 ch = *++arg_start;
3040
3041 arg_was_number = 0;
3042 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3043 {
3044 int ch2;
3045 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3046 if (arg_end_p1 != arg_start || ((ch2 = *arg_end_p1) != ';') || ch2 != ',')
3047 arg_was_number++;
3048
3049 if (t_ptr == &temp_array[0])
3050 {
3051 error_line = __LINE__;
3052 saber_stop ();
3053 goto bomb_out;
3054 }
3055
3056 *--t_ptr = arg_number;
3057 }
3058 }
3059
3060 /* Reverse order of sizes. */
3061 while (t_ptr <= &temp_array[ N_TQ-1 ])
3062 {
3063 if (t.num_sizes >= N_TQ-1)
3064 {
3065 error_line = __LINE__;
3066 saber_stop ();
3067 goto bomb_out;
3068 }
3069
3070 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3071 }
3072 break;
3073 }
3074
3075 else
3076 {
3077 error_line = __LINE__;
3078 saber_stop ();
3079 goto bomb_out;
3080 }
3081
3082
3083 case 't':
3084 if (len == sizeof (".type")-1
3085 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3086 && arg_was_number)
3087 {
3088 tq_t *tq_ptr = &t.type_qualifiers[0];
3089
3090 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3091 t.basic_type = map_coff_types [(int) t.orig_type];
3092 for (i = N_TQ-1; i >= 0; i--)
3093 {
3094 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3095 & N_TMASK);
3096
3097 if (dt != (int) DT_NON)
3098 *tq_ptr++ = map_coff_derived_type [dt];
3099 }
3100
3101 /* If this is a function, ignore it, so that we don't get
3102 two entries (one from the .ent, and one for the .def
3103 that precedes it). Save the type information so that
3104 the end block can properly add it after the begin block
3105 index. For MIPS knows what reason, we must strip off
3106 the function type at this point. */
3107 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3108 {
3109 is_function = 1;
3110 tq_ptr[-1] = tq_Nil;
3111 }
3112
3113 break;
3114 }
3115
3116 else if (len == sizeof (".tag")-1
3117 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3118 {
3119 tag_start = arg_start;
3120 tag_end_p1 = arg_end_p1;
3121 break;
3122 }
3123
3124 else
3125 {
3126 error_line = __LINE__;
3127 saber_stop ();
3128 goto bomb_out;
3129 }
3130
3131
3132 case 'v':
3133 if (len == sizeof (".val")-1
3134 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3135 {
3136 if (arg_was_number)
3137 value = arg_number;
3138
3139 /* If the value is not an integer value, it must be the
3140 name of a static or global item. Look up the name in
3141 the original symbol table to pick up the storage
3142 class, symbol type, etc. */
3143 else
3144 {
3145 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3146 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3147
3148 ext_hash_ptr = hash_string (arg_start,
3149 arg_end_p1 - arg_start,
3150 &ext_str_hash[0],
3151 (symint_t *) 0);
3152
3153 if (ext_hash_ptr != (shash_t *) 0
3154 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3155 eptr = ext_hash_ptr->esym_ptr;
3156
3157 orig_hash_ptr = hash_string (arg_start,
3158 arg_end_p1 - arg_start,
3159 &orig_str_hash[0],
3160 (symint_t *) 0);
3161
3162 if ((orig_hash_ptr == (shash_t *) 0
3163 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3164 && eptr == (EXTR *) 0)
3165 {
3166 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3167 (int) (arg_end_p1 - arg_start),
3168 arg_start);
3169 value = 0;
3170 }
3171 else
3172 {
3173 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3174 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3175 ? orig_hash_ptr->sym_ptr
3176 : &eptr->asym;
3177
3178 symbol_type = (st_t) ptr->st;
3179 storage_class = (sc_t) ptr->sc;
3180 value = ptr->value;
3181 }
3182 }
3183 break;
3184 }
3185 else
3186 {
3187 error_line = __LINE__;
3188 saber_stop ();
3189 goto bomb_out;
3190 }
3191 }
3192
3193 /* Set up to find next directive. */
3194 dir_start = arg_end_p1 + 1;
3195 }
3196
3197
3198 if (storage_class == sc_Bits)
3199 {
3200 t.bitfield = 1;
3201 t.extra_sizes = 1;
3202 }
3203 else
3204 t.extra_sizes = 0;
3205
3206 if (t.num_dims > 0)
3207 {
3208 int num_real_sizes = t.num_sizes - t.extra_sizes;
3209 int diff = t.num_dims - num_real_sizes;
3210 int i = t.num_dims - 1;
3211 int j;
3212
3213 if (num_real_sizes != 1 || diff < 0)
3214 {
3215 error_line = __LINE__;
3216 saber_stop ();
3217 goto bomb_out;
3218 }
3219
3220 /* If this is an array, make sure the same number of dimensions
3221 and sizes were passed, creating extra sizes for multiply
3222 dimensioned arrays if not passed. */
3223
3224 if (diff)
3225 {
3226 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3227 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3228
3229 t.num_sizes = i + 1;
3230 for ( i--; i >= 0; i-- )
3231 {
3232 if (t.dimensions[ i+1 ])
3233 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3234 else
3235 t.sizes[ i ] = t.sizes[ i+1 ];
3236 }
3237 }
3238 }
3239
3240 /* Except for enumeration members & begin/ending of scopes, put the
3241 type word in the aux. symbol table. */
3242
3243 if (symbol_type == st_Block || symbol_type == st_End)
3244 indx = 0;
3245
3246 else if (inside_enumeration)
3247 indx = cur_file_ptr->void_type;
3248
3249 else
3250 {
3251 if (t.basic_type == bt_Struct
3252 || t.basic_type == bt_Union
3253 || t.basic_type == bt_Enum)
3254 {
3255 if (tag_start == (char *) 0)
3256 {
3257 error ("no tag specified for %.*s",
3258 (int) (name_end_p1 - name_start),
3259 name_start);
3260 return;
3261 }
3262
3263 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t) indexNil,
3264 t.basic_type);
3265 }
3266
3267 if (is_function)
3268 {
3269 last_func_type_info = t;
3270 last_func_eptr = eptr;
3271 return;
3272 }
3273
3274 indx = add_aux_sym_tir (&t,
3275 hash_yes,
3276 &cur_file_ptr->thash_head[0]);
3277 }
3278
3279
3280 /* If this is an external or static symbol, update the appropriate
3281 external symbol. */
3282
3283 if (eptr != (EXTR *) 0
3284 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3285 {
3286 eptr->ifd = cur_file_ptr->file_index;
3287 eptr->asym.index = indx;
3288 }
3289
3290
3291 /* Do any last minute adjustments that are necessary. */
3292 switch (symbol_type)
3293 {
3294 default:
3295 break;
3296
3297
3298 /* For the beginning of structs, unions, and enumerations, the
3299 size info needs to be passed in the value field. */
3300
3301 case st_Block:
3302 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3303 {
3304 error_line = __LINE__;
3305 saber_stop ();
3306 goto bomb_out;
3307 }
3308
3309 else
3310 value = t.sizes[0];
3311
3312 inside_enumeration = (t.orig_type == T_ENUM);
3313 break;
3314
3315
3316 /* For the end of structs, unions, and enumerations, omit the
3317 name which is always ".eos". This needs to be done last, so
3318 that any error reporting above gives the correct name. */
3319
3320 case st_End:
3321 name_start = name_end_p1 = 0;
3322 value = inside_enumeration = 0;
3323 break;
3324
3325
3326 /* Members of structures and unions that aren't bitfields, need
3327 to adjust the value from a byte offset to a bit offset.
3328 Members of enumerations do not have the value adjusted, and
3329 can be distinguished by indx == indexNil. For enumerations,
3330 update the maximum enumeration value. */
3331
3332 case st_Member:
3333 if (!t.bitfield && !inside_enumeration)
3334 value *= 8;
3335
3336 break;
3337 }
3338
3339
3340 /* Add the symbol, except for global symbols outside of functions,
3341 for which the external symbol table is fine enough. */
3342
3343 if (eptr == (EXTR *) 0
3344 || eptr->asym.st == (int) st_Nil
3345 || cur_proc_ptr != (PDR *) 0)
3346 {
3347 symint_t isym = add_local_symbol (name_start, name_end_p1,
3348 symbol_type, storage_class,
3349 value,
3350 indx);
3351
3352 /* deal with struct, union, and enum tags. */
3353 if (symbol_type == st_Block)
3354 {
3355 /* Create or update the tag information. */
3356 tag_t *tag_ptr = get_tag (name_start,
3357 name_end_p1,
3358 isym,
3359 t.basic_type);
3360
3361 /* If there are any forward references, fill in the appropriate
3362 file and symbol indexes. */
3363
3364 symint_t file_index = cur_file_ptr->file_index;
3365 forward_t *f_next = tag_ptr->forward_ref;
3366 forward_t *f_cur;
3367
3368 while (f_next != (forward_t *) 0)
3369 {
3370 f_cur = f_next;
3371 f_next = f_next->next;
3372
3373 f_cur->ifd_ptr->isym = file_index;
3374 f_cur->index_ptr->rndx.index = isym;
3375
3376 free_forward (f_cur);
3377 }
3378
3379 tag_ptr->forward_ref = (forward_t *) 0;
3380 }
3381 }
3382
3383 /* Normal return */
3384 return;
3385
3386 /* Error return, issue message. */
3387 bomb_out:
3388 if (error_line)
3389 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3390 else
3391 error ("compiler error, badly formed #.def");
3392
3393 return;
3394 }
3395
3396 \f
3397 /* Parse .end directives. */
3398
3399 STATIC void
3400 parse_end (start)
3401 const char *start; /* start of directive */
3402 {
3403 const char *start_func, *end_func_p1;
3404 int ch;
3405 symint_t value;
3406 FDR *orig_fdr;
3407
3408 if (cur_file_ptr == (efdr_t *) 0)
3409 {
3410 error (".end directive without a preceding .file directive");
3411 return;
3412 }
3413
3414 if (cur_proc_ptr == (PDR *) 0)
3415 {
3416 error (".end directive without a preceding .ent directive");
3417 return;
3418 }
3419
3420 /* Get the function name, skipping whitespace. */
3421 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3422 ;
3423
3424 ch = *start_func;
3425 if (!IS_ASM_IDENT (ch))
3426 {
3427 error (".end directive has no name");
3428 return;
3429 }
3430
3431 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3432 ;
3433
3434
3435 /* Get the value field for creating the end from the original object
3436 file (which we find by locating the procedure start, and using the
3437 pointer to the end+1 block and backing up. The index points to a
3438 two word aux. symbol, whose first word is the index of the end
3439 symbol, and the second word is the type of the function return
3440 value. */
3441
3442 orig_fdr = cur_file_ptr->orig_fdr;
3443 value = 0;
3444 if (orig_fdr != (FDR *) 0 && cur_oproc_end != (SYMR *) 0)
3445 value = cur_oproc_end->value;
3446
3447 else
3448 error ("cannot find .end block for %.*s",
3449 (int) (end_func_p1 - start_func), start_func);
3450
3451 (void) add_local_symbol (start_func, end_func_p1,
3452 st_End, sc_Text,
3453 value,
3454 (symint_t) 0);
3455
3456 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3457 }
3458
3459 \f
3460 /* Parse .ent directives. */
3461
3462 STATIC void
3463 parse_ent (start)
3464 const char *start; /* start of directive */
3465 {
3466 const char *start_func, *end_func_p1;
3467 int ch;
3468
3469 if (cur_file_ptr == (efdr_t *) 0)
3470 {
3471 error (".ent directive without a preceding .file directive");
3472 return;
3473 }
3474
3475 if (cur_proc_ptr != (PDR *) 0)
3476 {
3477 error ("second .ent directive found before .end directive");
3478 return;
3479 }
3480
3481 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3482 ;
3483
3484 ch = *start_func;
3485 if (!IS_ASM_IDENT (ch))
3486 {
3487 error (".ent directive has no name");
3488 return;
3489 }
3490
3491 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3492 ;
3493
3494 (void) add_procedure (start_func, end_func_p1);
3495 }
3496
3497 \f
3498 /* Parse .file directives. */
3499
3500 STATIC void
3501 parse_file (start)
3502 const char *start; /* start of directive */
3503 {
3504 char *p;
3505 char *start_name, *end_name_p1;
3506
3507 (void) strtol (start, &p, 0);
3508 if (start == p
3509 || (start_name = strchr (p, '"')) == (char *) 0
3510 || (end_name_p1 = strrchr (++start_name, '"')) == (char *) 0)
3511 {
3512 error ("invalid .file directive");
3513 return;
3514 }
3515
3516 if (cur_proc_ptr != (PDR *) 0)
3517 {
3518 error ("no way to handle .file within .ent/.end section");
3519 return;
3520 }
3521
3522 add_file (start_name, end_name_p1);
3523 }
3524
3525 \f
3526 /* Make sure the @stabs symbol is emitted. */
3527
3528 static void
3529 mark_stabs (start)
3530 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3531 {
3532 if (!stabs_seen)
3533 {
3534 /* Add a dummy @stabs symbol. */
3535 stabs_seen = 1;
3536 (void) add_local_symbol (stabs_symbol,
3537 stabs_symbol + sizeof (stabs_symbol),
3538 stNil, scInfo, -1, MIPS_MARK_STAB (0));
3539
3540 }
3541 }
3542
3543 \f
3544 /* Parse .stabs directives.
3545
3546 .stabs directives have five fields:
3547 "string" a string, encoding the type information.
3548 code a numeric code, defined in <stab.h>
3549 0 a zero
3550 0 a zero or line number
3551 value a numeric value or an address.
3552
3553 If the value is relocatable, we transform this into:
3554 iss points as an index into string space
3555 value value from lookup of the name
3556 st st from lookup of the name
3557 sc sc from lookup of the name
3558 index code|CODE_MASK
3559
3560 If the value is not relocatable, we transform this into:
3561 iss points as an index into string space
3562 value value
3563 st st_Nil
3564 sc sc_Nil
3565 index code|CODE_MASK
3566
3567 .stabn directives have four fields (string is null):
3568 code a numeric code, defined in <stab.h>
3569 0 a zero
3570 0 a zero or a line number
3571 value a numeric value or an address. */
3572
3573 STATIC void
3574 parse_stabs_common (string_start, string_end, rest)
3575 const char *string_start; /* start of string or NULL */
3576 const char *string_end; /* end+1 of string or NULL */
3577 const char *rest; /* rest of the directive. */
3578 {
3579 efdr_t *save_file_ptr = cur_file_ptr;
3580 symint_t code;
3581 symint_t value;
3582 char *p;
3583 st_t st;
3584 sc_t sc;
3585 int ch;
3586
3587 if (stabs_seen == 0)
3588 mark_stabs ("");
3589
3590 /* Read code from stabs. */
3591 if (!ISDIGIT (*rest))
3592 {
3593 error ("invalid .stabs/.stabn directive, code is non-numeric");
3594 return;
3595 }
3596
3597 code = strtol (rest, &p, 0);
3598
3599 /* Line number stabs are handled differently, since they have two values,
3600 the line number and the address of the label. We use the index field
3601 (aka code) to hold the line number, and the value field to hold the
3602 address. The symbol type is st_Label, which should be different from
3603 the other stabs, so that gdb can recognize it. */
3604
3605 if (code == (int) N_SLINE)
3606 {
3607 SYMR *sym_ptr, dummy_symr;
3608 shash_t *shash_ptr;
3609
3610 /* Skip ,0, */
3611 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3612 {
3613 error ("invalid line number .stabs/.stabn directive");
3614 return;
3615 }
3616
3617 code = strtol (p+3, &p, 0);
3618 ch = *++p;
3619 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3620 {
3621 error ("invalid line number .stabs/.stabn directive");
3622 return;
3623 }
3624
3625 dummy_symr.index = code;
3626 if (dummy_symr.index != code)
3627 {
3628 error ("line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3629 code);
3630
3631 return;
3632 }
3633
3634 shash_ptr = hash_string (p,
3635 strlen (p) - 1,
3636 &orig_str_hash[0],
3637 (symint_t *) 0);
3638
3639 if (shash_ptr == (shash_t *) 0
3640 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3641 {
3642 error ("invalid .stabs/.stabn directive, value not found");
3643 return;
3644 }
3645
3646 if ((st_t) sym_ptr->st != st_Label)
3647 {
3648 error ("invalid line number .stabs/.stabn directive");
3649 return;
3650 }
3651
3652 st = st_Label;
3653 sc = (sc_t) sym_ptr->sc;
3654 value = sym_ptr->value;
3655 }
3656 else
3657 {
3658 /* Skip ,<num>,<num>, */
3659 if (*p++ != ',')
3660 goto failure;
3661 for (; ISDIGIT (*p); p++)
3662 ;
3663 if (*p++ != ',')
3664 goto failure;
3665 for (; ISDIGIT (*p); p++)
3666 ;
3667 if (*p++ != ',')
3668 goto failure;
3669 ch = *p;
3670 if (!IS_ASM_IDENT (ch) && ch != '-')
3671 {
3672 failure:
3673 error ("invalid .stabs/.stabn directive, bad character");
3674 return;
3675 }
3676
3677 if (ISDIGIT (ch) || ch == '-')
3678 {
3679 st = st_Nil;
3680 sc = sc_Nil;
3681 value = strtol (p, &p, 0);
3682 if (*p != '\n')
3683 {
3684 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3685 return;
3686 }
3687 }
3688 else if (!IS_ASM_IDENT (ch))
3689 {
3690 error ("invalid .stabs/.stabn directive, bad character");
3691 return;
3692 }
3693 else
3694 {
3695 SYMR *sym_ptr;
3696 shash_t *shash_ptr;
3697 const char *start, *end_p1;
3698
3699 start = p;
3700 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3701 {
3702 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3703 end_p1 = start + strlen (start) - 1;
3704 }
3705
3706 shash_ptr = hash_string (start,
3707 end_p1 - start,
3708 &orig_str_hash[0],
3709 (symint_t *) 0);
3710
3711 if (shash_ptr == (shash_t *) 0
3712 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3713 {
3714 shash_ptr = hash_string (start,
3715 end_p1 - start,
3716 &ext_str_hash[0],
3717 (symint_t *) 0);
3718
3719 if (shash_ptr == (shash_t *) 0
3720 || shash_ptr->esym_ptr == (EXTR *) 0)
3721 {
3722 error ("invalid .stabs/.stabn directive, value not found");
3723 return;
3724 }
3725 else
3726 sym_ptr = &(shash_ptr->esym_ptr->asym);
3727 }
3728
3729 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3730 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3731 {
3732 sc = scNil;
3733 st = stNil;
3734 }
3735 else
3736 {
3737 sc = (sc_t) sym_ptr->sc;
3738 st = (st_t) sym_ptr->st;
3739 }
3740 value = sym_ptr->value;
3741
3742 ch = *end_p1++;
3743 if (ch != '\n')
3744 {
3745 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3746 || ((ch != '+') && (ch != '-')))
3747 {
3748 error ("invalid .stabs/.stabn directive, badly formed value");
3749 return;
3750 }
3751 if (ch == '+')
3752 value += strtol (end_p1, &p, 0);
3753 else if (ch == '-')
3754 value -= strtol (end_p1, &p, 0);
3755
3756 if (*p != '\n')
3757 {
3758 error ("invalid .stabs/.stabn directive, stuff after numeric value");
3759 return;
3760 }
3761 }
3762 }
3763 code = MIPS_MARK_STAB (code);
3764 }
3765
3766 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3767 /* Restore normal file type. */
3768 cur_file_ptr = save_file_ptr;
3769 }
3770
3771
3772 STATIC void
3773 parse_stabs (start)
3774 const char *start; /* start of directive */
3775 {
3776 const char *end = strchr (start+1, '"');
3777
3778 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3779 {
3780 error ("invalid .stabs directive, no string");
3781 return;
3782 }
3783
3784 parse_stabs_common (start+1, end, end+2);
3785 }
3786
3787
3788 STATIC void
3789 parse_stabn (start)
3790 const char *start; /* start of directive */
3791 {
3792 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3793 }
3794
3795 \f
3796 /* Parse the input file, and write the lines to the output file
3797 if needed. */
3798
3799 STATIC void
3800 parse_input ()
3801 {
3802 char *p;
3803 Size_t i;
3804 thead_t *ptag_head;
3805 tag_t *ptag;
3806 tag_t *ptag_next;
3807
3808 if (debug)
3809 fprintf (stderr, "\tinput\n");
3810
3811 /* Add a dummy scope block around the entire compilation unit for
3812 structures defined outside of blocks. */
3813 ptag_head = allocate_thead ();
3814 ptag_head->first_tag = 0;
3815 ptag_head->prev = cur_tag_head;
3816 cur_tag_head = ptag_head;
3817
3818 while ((p = read_line ()) != (char *) 0)
3819 {
3820 /* Skip leading blanks. */
3821 while (ISSPACE ((unsigned char)*p))
3822 p++;
3823
3824 /* See if it's a directive we handle. If so, dispatch handler. */
3825 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3826 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3827 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3828 {
3829 p += pseudo_ops[i].len; /* skip to first argument */
3830 while (ISSPACE ((unsigned char)*p))
3831 p++;
3832
3833 (*pseudo_ops[i].func)( p );
3834 break;
3835 }
3836 }
3837
3838 /* Process any tags at global level. */
3839 ptag_head = cur_tag_head;
3840 cur_tag_head = ptag_head->prev;
3841
3842 for (ptag = ptag_head->first_tag;
3843 ptag != (tag_t *) 0;
3844 ptag = ptag_next)
3845 {
3846 if (ptag->forward_ref != (forward_t *) 0)
3847 add_unknown_tag (ptag);
3848
3849 ptag_next = ptag->same_block;
3850 ptag->hash_ptr->tag_ptr = ptag->same_name;
3851 free_tag (ptag);
3852 }
3853
3854 free_thead (ptag_head);
3855
3856 }
3857
3858 \f
3859 /* Update the global headers with the final offsets in preparation
3860 to write out the .T file. */
3861
3862 STATIC void
3863 update_headers ()
3864 {
3865 symint_t i;
3866 efdr_t *file_ptr;
3867
3868 /* Set up the symbolic header. */
3869 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3870 symbolic_header.magic = orig_sym_hdr.magic;
3871 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3872
3873 /* Set up global counts. */
3874 symbolic_header.issExtMax = ext_strings.num_allocated;
3875 symbolic_header.idnMax = dense_num.num_allocated;
3876 symbolic_header.ifdMax = file_desc.num_allocated;
3877 symbolic_header.iextMax = ext_symbols.num_allocated;
3878 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3879 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3880 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3881 symbolic_header.crfd = orig_sym_hdr.crfd;
3882
3883
3884 /* Loop through each file, figuring out how many local syms,
3885 line numbers, etc. there are. Also, put out end symbol
3886 for the filename. */
3887
3888 for (file_ptr = first_file;
3889 file_ptr != (efdr_t *) 0;
3890 file_ptr = file_ptr->next_file)
3891 {
3892 SYMR *sym_start;
3893 SYMR *sym;
3894 SYMR *sym_end_p1;
3895 FDR *fd_ptr = file_ptr->orig_fdr;
3896
3897 cur_file_ptr = file_ptr;
3898
3899 /* Copy st_Static symbols from the original local symbol table if
3900 they did not get added to the new local symbol table.
3901 This happens with stabs-in-ecoff or if the source file is
3902 compiled without debugging. */
3903 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3904 sym_end_p1 = sym_start + fd_ptr->csym;
3905 for (sym = sym_start; sym < sym_end_p1; sym++)
3906 {
3907 if ((st_t) sym->st == st_Static)
3908 {
3909 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3910 Size_t len = strlen (str);
3911 shash_t *hash_ptr;
3912
3913 /* Ignore internal labels. */
3914 if (str[0] == '$' && str[1] == 'L')
3915 continue;
3916 hash_ptr = hash_string (str,
3917 (Ptrdiff_t) len,
3918 &file_ptr->shash_head[0],
3919 (symint_t *) 0);
3920 if (hash_ptr == (shash_t *) 0)
3921 {
3922 (void) add_local_symbol (str, str + len,
3923 (st_t) sym->st, (sc_t) sym->sc,
3924 (symint_t) sym->value,
3925 (symint_t) indexNil);
3926 }
3927 }
3928 }
3929 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3930 st_End, sc_Text,
3931 (symint_t) 0,
3932 (symint_t) 0);
3933
3934 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3935 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3936 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3937
3938 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3939 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3940 symbolic_header.isymMax += file_ptr->fdr.csym;
3941
3942 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3943 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3944 symbolic_header.iauxMax += file_ptr->fdr.caux;
3945
3946 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3947 file_ptr->fdr.issBase = symbolic_header.issMax;
3948 symbolic_header.issMax += file_ptr->fdr.cbSs;
3949 }
3950
3951 #ifndef ALIGN_SYMTABLE_OFFSET
3952 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
3953 #endif
3954
3955 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3956 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3957 if (i > 0)
3958 {
3959 symbolic_header.cbLineOffset = file_offset;
3960 file_offset += i;
3961 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3962 }
3963
3964 i = symbolic_header.ioptMax; /* optimization symbols */
3965 if (((long) i) > 0)
3966 {
3967 symbolic_header.cbOptOffset = file_offset;
3968 file_offset += i * sizeof (OPTR);
3969 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3970 }
3971
3972 i = symbolic_header.idnMax; /* dense numbers */
3973 if (i > 0)
3974 {
3975 symbolic_header.cbDnOffset = file_offset;
3976 file_offset += i * sizeof (DNR);
3977 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3978 }
3979
3980 i = symbolic_header.ipdMax; /* procedure tables */
3981 if (i > 0)
3982 {
3983 symbolic_header.cbPdOffset = file_offset;
3984 file_offset += i * sizeof (PDR);
3985 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3986 }
3987
3988 i = symbolic_header.isymMax; /* local symbols */
3989 if (i > 0)
3990 {
3991 symbolic_header.cbSymOffset = file_offset;
3992 file_offset += i * sizeof (SYMR);
3993 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
3994 }
3995
3996 i = symbolic_header.iauxMax; /* aux syms. */
3997 if (i > 0)
3998 {
3999 symbolic_header.cbAuxOffset = file_offset;
4000 file_offset += i * sizeof (TIR);
4001 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4002 }
4003
4004 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4005 if (i > 0)
4006 {
4007 symbolic_header.cbSsOffset = file_offset;
4008 file_offset += i;
4009 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4010 }
4011
4012 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4013 if (i > 0)
4014 {
4015 symbolic_header.cbSsExtOffset = file_offset;
4016 file_offset += i;
4017 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4018 }
4019
4020 i = symbolic_header.ifdMax; /* file tables */
4021 if (i > 0)
4022 {
4023 symbolic_header.cbFdOffset = file_offset;
4024 file_offset += i * sizeof (FDR);
4025 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4026 }
4027
4028 i = symbolic_header.crfd; /* relative file descriptors */
4029 if (i > 0)
4030 {
4031 symbolic_header.cbRfdOffset = file_offset;
4032 file_offset += i * sizeof (symint_t);
4033 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4034 }
4035
4036 i = symbolic_header.iextMax; /* external symbols */
4037 if (i > 0)
4038 {
4039 symbolic_header.cbExtOffset = file_offset;
4040 file_offset += i * sizeof (EXTR);
4041 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4042 }
4043 }
4044
4045 \f
4046 /* Write out a varray at a given location. */
4047
4048 STATIC void
4049 write_varray (vp, offset, str)
4050 varray_t *vp; /* virtual array */
4051 off_t offset; /* offset to write varray to */
4052 const char *str; /* string to print out when tracing */
4053 {
4054 int num_write, sys_write;
4055 vlinks_t *ptr;
4056
4057 if (vp->num_allocated == 0)
4058 return;
4059
4060 if (debug)
4061 {
4062 fputs ("\twarray\tvp = ", stderr);
4063 fprintf (stderr, HOST_PTR_PRINTF, (void *) vp);
4064 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4065 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4066 }
4067
4068 if (file_offset != (unsigned long) offset
4069 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4070 pfatal_with_name (object_name);
4071
4072 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4073 {
4074 num_write = (ptr->next == (vlinks_t *) 0)
4075 ? vp->objects_last_page * vp->object_size
4076 : vp->objects_per_page * vp->object_size;
4077
4078 sys_write = fwrite (ptr->datum, 1, num_write, object_stream);
4079 if (sys_write <= 0)
4080 pfatal_with_name (object_name);
4081
4082 else if (sys_write != num_write)
4083 fatal ("wrote %d bytes to %s, system returned %d",
4084 num_write,
4085 object_name,
4086 sys_write);
4087
4088 file_offset += num_write;
4089 }
4090 }
4091
4092 \f
4093 /* Write out the symbol table in the object file. */
4094
4095 STATIC void
4096 write_object ()
4097 {
4098 int sys_write;
4099 efdr_t *file_ptr;
4100 off_t offset;
4101
4102 if (debug)
4103 {
4104 fputs ("\n\twrite\tvp = ", stderr);
4105 fprintf (stderr, HOST_PTR_PRINTF, (void *) &symbolic_header);
4106 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4107 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4108 }
4109
4110 sys_write = fwrite (&symbolic_header,
4111 1,
4112 sizeof (symbolic_header),
4113 object_stream);
4114
4115 if (sys_write < 0)
4116 pfatal_with_name (object_name);
4117
4118 else if (sys_write != sizeof (symbolic_header))
4119 fatal ("wrote %d bytes to %s, system returned %d",
4120 (int) sizeof (symbolic_header),
4121 object_name,
4122 sys_write);
4123
4124
4125 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4126
4127 if (symbolic_header.cbLine > 0) /* line numbers */
4128 {
4129 long sys_write;
4130
4131 if (file_offset != (unsigned long) symbolic_header.cbLineOffset
4132 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4133 pfatal_with_name (object_name);
4134
4135 if (debug)
4136 {
4137 fputs ("\twrite\tvp = ", stderr);
4138 fprintf (stderr, HOST_PTR_PRINTF, (void *) &orig_linenum);
4139 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4140 (long) symbolic_header.cbLineOffset,
4141 (long) symbolic_header.cbLine, "Line numbers");
4142 }
4143
4144 sys_write = fwrite (orig_linenum,
4145 1,
4146 symbolic_header.cbLine,
4147 object_stream);
4148
4149 if (sys_write <= 0)
4150 pfatal_with_name (object_name);
4151
4152 else if (sys_write != symbolic_header.cbLine)
4153 fatal ("wrote %ld bytes to %s, system returned %ld",
4154 (long) symbolic_header.cbLine,
4155 object_name,
4156 sys_write);
4157
4158 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4159 }
4160
4161 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4162 {
4163 long sys_write;
4164 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4165
4166 if (file_offset != (unsigned long) symbolic_header.cbOptOffset
4167 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4168 pfatal_with_name (object_name);
4169
4170 if (debug)
4171 {
4172 fputs ("\twrite\tvp = ", stderr);
4173 fprintf (stderr, HOST_PTR_PRINTF, (void *) &orig_opt_syms);
4174 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4175 (long) symbolic_header.cbOptOffset,
4176 num_write, "Optimizer symbols");
4177 }
4178
4179 sys_write = fwrite (orig_opt_syms,
4180 1,
4181 num_write,
4182 object_stream);
4183
4184 if (sys_write <= 0)
4185 pfatal_with_name (object_name);
4186
4187 else if (sys_write != num_write)
4188 fatal ("wrote %ld bytes to %s, system returned %ld",
4189 num_write,
4190 object_name,
4191 sys_write);
4192
4193 file_offset = symbolic_header.cbOptOffset + num_write;
4194 }
4195
4196 if (symbolic_header.idnMax > 0) /* dense numbers */
4197 write_varray (&dense_num, (off_t) symbolic_header.cbDnOffset, "Dense numbers");
4198
4199 if (symbolic_header.ipdMax > 0) /* procedure tables */
4200 {
4201 offset = symbolic_header.cbPdOffset;
4202 for (file_ptr = first_file;
4203 file_ptr != (efdr_t *) 0;
4204 file_ptr = file_ptr->next_file)
4205 {
4206 write_varray (&file_ptr->procs, offset, "Procedure tables");
4207 offset = file_offset;
4208 }
4209 }
4210
4211 if (symbolic_header.isymMax > 0) /* local symbols */
4212 {
4213 offset = symbolic_header.cbSymOffset;
4214 for (file_ptr = first_file;
4215 file_ptr != (efdr_t *) 0;
4216 file_ptr = file_ptr->next_file)
4217 {
4218 write_varray (&file_ptr->symbols, offset, "Local symbols");
4219 offset = file_offset;
4220 }
4221 }
4222
4223 if (symbolic_header.iauxMax > 0) /* aux symbols */
4224 {
4225 offset = symbolic_header.cbAuxOffset;
4226 for (file_ptr = first_file;
4227 file_ptr != (efdr_t *) 0;
4228 file_ptr = file_ptr->next_file)
4229 {
4230 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4231 offset = file_offset;
4232 }
4233 }
4234
4235 if (symbolic_header.issMax > 0) /* local strings */
4236 {
4237 offset = symbolic_header.cbSsOffset;
4238 for (file_ptr = first_file;
4239 file_ptr != (efdr_t *) 0;
4240 file_ptr = file_ptr->next_file)
4241 {
4242 write_varray (&file_ptr->strings, offset, "Local strings");
4243 offset = file_offset;
4244 }
4245 }
4246
4247 if (symbolic_header.issExtMax > 0) /* external strings */
4248 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4249
4250 if (symbolic_header.ifdMax > 0) /* file tables */
4251 {
4252 offset = symbolic_header.cbFdOffset;
4253 if (file_offset != (unsigned long) offset
4254 && fseek (object_stream, (long) offset, SEEK_SET) < 0)
4255 pfatal_with_name (object_name);
4256
4257 file_offset = offset;
4258 for (file_ptr = first_file;
4259 file_ptr != (efdr_t *) 0;
4260 file_ptr = file_ptr->next_file)
4261 {
4262 if (debug)
4263 {
4264 fputs ("\twrite\tvp = ", stderr);
4265 fprintf (stderr, HOST_PTR_PRINTF, (void *) &file_ptr->fdr);
4266 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4267 file_offset, (unsigned long) sizeof (FDR),
4268 "File header");
4269 }
4270
4271 sys_write = fwrite (&file_ptr->fdr,
4272 1,
4273 sizeof (FDR),
4274 object_stream);
4275
4276 if (sys_write < 0)
4277 pfatal_with_name (object_name);
4278
4279 else if (sys_write != sizeof (FDR))
4280 fatal ("wrote %d bytes to %s, system returned %d",
4281 (int) sizeof (FDR),
4282 object_name,
4283 sys_write);
4284
4285 file_offset = offset += sizeof (FDR);
4286 }
4287 }
4288
4289 if (symbolic_header.crfd > 0) /* relative file descriptors */
4290 {
4291 long sys_write;
4292 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4293
4294 if (file_offset != (unsigned long) symbolic_header.cbRfdOffset
4295 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4296 pfatal_with_name (object_name);
4297
4298 if (debug)
4299 {
4300 fputs ("\twrite\tvp = ", stderr);
4301 fprintf (stderr, HOST_PTR_PRINTF, (void *) &orig_rfds);
4302 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4303 (long) symbolic_header.cbRfdOffset,
4304 num_write, "Relative file descriptors");
4305 }
4306
4307 sys_write = fwrite (orig_rfds,
4308 1,
4309 num_write,
4310 object_stream);
4311
4312 if (sys_write <= 0)
4313 pfatal_with_name (object_name);
4314
4315 else if (sys_write != (long) num_write)
4316 fatal ("wrote %lu bytes to %s, system returned %ld",
4317 num_write,
4318 object_name,
4319 sys_write);
4320
4321 file_offset = symbolic_header.cbRfdOffset + num_write;
4322 }
4323
4324 if (symbolic_header.issExtMax > 0) /* external symbols */
4325 write_varray (&ext_symbols, (off_t) symbolic_header.cbExtOffset, "External symbols");
4326
4327 if (fclose (object_stream) != 0)
4328 pfatal_with_name (object_name);
4329 }
4330
4331 \f
4332 /* Read some bytes at a specified location, and return a pointer. */
4333
4334 STATIC page_t *
4335 read_seek (size, offset, str)
4336 Size_t size; /* # bytes to read */
4337 off_t offset; /* offset to read at */
4338 const char *str; /* name for tracing */
4339 {
4340 page_t *ptr;
4341 long sys_read = 0;
4342
4343 if (size == 0) /* nothing to read */
4344 return (page_t *) 0;
4345
4346 if (debug)
4347 fprintf (stderr,
4348 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4349 (unsigned long) size, (unsigned long) offset, file_offset, str);
4350
4351 #ifndef MALLOC_CHECK
4352 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4353 #else
4354 ptr = (page_t *) xcalloc (1, size);
4355 #endif
4356
4357 /* If we need to seek, and the distance is nearby, just do some reads,
4358 to speed things up. */
4359 if (file_offset != (unsigned long) offset)
4360 {
4361 symint_t difference = offset - file_offset;
4362
4363 if (difference < 8)
4364 {
4365 char small_buffer[8];
4366
4367 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4368 if (sys_read <= 0)
4369 pfatal_with_name (obj_in_name);
4370
4371 if ((symint_t) sys_read != difference)
4372 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4373 (unsigned long) size,
4374 obj_in_name,
4375 sys_read);
4376 }
4377 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4378 pfatal_with_name (obj_in_name);
4379 }
4380
4381 sys_read = fread (ptr, 1, size, obj_in_stream);
4382 if (sys_read <= 0)
4383 pfatal_with_name (obj_in_name);
4384
4385 if (sys_read != (long) size)
4386 fatal ("wanted to read %lu bytes from %s, system returned %ld",
4387 (unsigned long) size,
4388 obj_in_name,
4389 sys_read);
4390
4391 file_offset = offset + size;
4392
4393 if (file_offset > max_file_offset)
4394 max_file_offset = file_offset;
4395
4396 return ptr;
4397 }
4398
4399 \f
4400 /* Read the existing object file (and copy to the output object file
4401 if it is different from the input object file), and remove the old
4402 symbol table. */
4403
4404 STATIC void
4405 copy_object ()
4406 {
4407 char buffer[ PAGE_SIZE ];
4408 int sys_read;
4409 int remaining;
4410 int num_write;
4411 int sys_write;
4412 int fd, es;
4413 int delete_ifd = 0;
4414 int *remap_file_number;
4415 struct stat stat_buf;
4416
4417 if (debug)
4418 fprintf (stderr, "\tcopy\n");
4419
4420 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4421 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4422 pfatal_with_name (obj_in_name);
4423
4424 sys_read = fread (&orig_file_header,
4425 1,
4426 sizeof (struct filehdr),
4427 obj_in_stream);
4428
4429 if (sys_read < 0)
4430 pfatal_with_name (obj_in_name);
4431
4432 else if (sys_read == 0 && feof (obj_in_stream))
4433 return; /* create a .T file sans file header */
4434
4435 else if (sys_read < (int) sizeof (struct filehdr))
4436 fatal ("wanted to read %d bytes from %s, system returned %d",
4437 (int) sizeof (struct filehdr),
4438 obj_in_name,
4439 sys_read);
4440
4441
4442 if (orig_file_header.f_nsyms != sizeof (HDRR))
4443 fatal ("%s symbolic header wrong size (%ld bytes, should be %ld)",
4444 input_name, (long) orig_file_header.f_nsyms, (long) sizeof (HDRR));
4445
4446
4447 /* Read in the current symbolic header. */
4448 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4449 pfatal_with_name (input_name);
4450
4451 sys_read = fread (&orig_sym_hdr,
4452 1,
4453 sizeof (orig_sym_hdr),
4454 obj_in_stream);
4455
4456 if (sys_read < 0)
4457 pfatal_with_name (object_name);
4458
4459 else if (sys_read < (int) sizeof (struct filehdr))
4460 fatal ("wanted to read %d bytes from %s, system returned %d",
4461 (int) sizeof (struct filehdr),
4462 obj_in_name,
4463 sys_read);
4464
4465
4466 /* Read in each of the sections if they exist in the object file.
4467 We read things in in the order the mips assembler creates the
4468 sections, so in theory no extra seeks are done.
4469
4470 For simplicity sake, round each read up to a page boundary,
4471 we may want to revisit this later.... */
4472
4473 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4474
4475 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4476 orig_linenum = (char *) read_seek ((Size_t) orig_sym_hdr.cbLine,
4477 orig_sym_hdr.cbLineOffset,
4478 "Line numbers");
4479
4480 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4481 orig_procs = (PDR *) read_seek ((Size_t) orig_sym_hdr.ipdMax * sizeof (PDR),
4482 orig_sym_hdr.cbPdOffset,
4483 "Procedure tables");
4484
4485 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4486 orig_local_syms = (SYMR *) read_seek ((Size_t) orig_sym_hdr.isymMax * sizeof (SYMR),
4487 orig_sym_hdr.cbSymOffset,
4488 "Local symbols");
4489
4490 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4491 orig_aux_syms = (AUXU *) read_seek ((Size_t) orig_sym_hdr.iauxMax * sizeof (AUXU),
4492 orig_sym_hdr.cbAuxOffset,
4493 "Aux. symbols");
4494
4495 if (orig_sym_hdr.issMax > 0) /* local strings */
4496 orig_local_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issMax,
4497 orig_sym_hdr.cbSsOffset,
4498 "Local strings");
4499
4500 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4501 orig_ext_strs = (char *) read_seek ((Size_t) orig_sym_hdr.issExtMax,
4502 orig_sym_hdr.cbSsExtOffset,
4503 "External strings");
4504
4505 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4506 orig_files = (FDR *) read_seek ((Size_t) orig_sym_hdr.ifdMax * sizeof (FDR),
4507 orig_sym_hdr.cbFdOffset,
4508 "File tables");
4509
4510 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4511 orig_rfds = (symint_t *) read_seek ((Size_t) orig_sym_hdr.crfd * sizeof (symint_t),
4512 orig_sym_hdr.cbRfdOffset,
4513 "Relative file descriptors");
4514
4515 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4516 orig_ext_syms = (EXTR *) read_seek ((Size_t) orig_sym_hdr.iextMax * sizeof (EXTR),
4517 orig_sym_hdr.cbExtOffset,
4518 "External symbols");
4519
4520 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4521 {
4522 orig_dense = (DNR *) read_seek ((Size_t) orig_sym_hdr.idnMax * sizeof (DNR),
4523 orig_sym_hdr.cbDnOffset,
4524 "Dense numbers");
4525
4526 add_bytes (&dense_num, (char *) orig_dense, (Size_t) orig_sym_hdr.idnMax);
4527 }
4528
4529 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4530 orig_opt_syms = (OPTR *) read_seek ((Size_t) orig_sym_hdr.ioptMax * sizeof (OPTR),
4531 orig_sym_hdr.cbOptOffset,
4532 "Optimizer symbols");
4533
4534
4535
4536 /* Abort if the symbol table is not last. */
4537 if (max_file_offset != (unsigned long) stat_buf.st_size)
4538 fatal ("symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4539 max_file_offset,
4540 (long) stat_buf.st_size);
4541
4542
4543 /* If the first original file descriptor is a dummy which the assembler
4544 put out, but there are no symbols in it, skip it now. */
4545 if (orig_sym_hdr.ifdMax > 1
4546 && orig_files->csym == 2
4547 && orig_files->caux == 0)
4548 {
4549 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4550 char *suffix = strrchr (filename, '.');
4551
4552 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4553 delete_ifd = 1;
4554 }
4555
4556
4557 /* Create array to map original file numbers to the new file numbers
4558 (in case there are duplicate filenames, we collapse them into one
4559 file section, the MIPS assembler may or may not collapse them). */
4560
4561 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4562
4563 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4564 {
4565 FDR *fd_ptr = ORIG_FILES (fd);
4566 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4567
4568 /* file support itself. */
4569 add_file (filename, filename + strlen (filename));
4570 remap_file_number[fd] = cur_file_ptr->file_index;
4571 }
4572
4573 if (delete_ifd > 0) /* just in case */
4574 remap_file_number[0] = remap_file_number[1];
4575
4576
4577 /* Loop, adding each of the external symbols. These must be in
4578 order or otherwise we would have to change the relocation
4579 entries. We don't just call add_bytes, because we need to have
4580 the names put into the external hash table. We set the type to
4581 'void' for now, and parse_def will fill in the correct type if it
4582 is in the symbol table. We must add the external symbols before
4583 the locals, since the locals do lookups against the externals. */
4584
4585 if (debug)
4586 fprintf (stderr, "\tehash\n");
4587
4588 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4589 {
4590 EXTR *eptr = orig_ext_syms + es;
4591 int ifd = eptr->ifd;
4592
4593 (void) add_ext_symbol (eptr, ((long) ifd < orig_sym_hdr.ifdMax)
4594 ? remap_file_number[ ifd ] : ifd );
4595 }
4596
4597
4598 /* For each of the files in the object file, copy the symbols, and such
4599 into the varrays for the new object file. */
4600
4601 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4602 {
4603 FDR *fd_ptr = ORIG_FILES (fd);
4604 char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4605 SYMR *sym_start;
4606 SYMR *sym;
4607 SYMR *sym_end_p1;
4608 PDR *proc_start;
4609 PDR *proc;
4610 PDR *proc_end_p1;
4611
4612 /* file support itself. */
4613 add_file (filename, filename + strlen (filename));
4614 cur_file_ptr->orig_fdr = fd_ptr;
4615
4616 /* Copy stuff that's just passed through (such as line #'s) */
4617 cur_file_ptr->fdr.adr = fd_ptr->adr;
4618 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4619 cur_file_ptr->fdr.cline = fd_ptr->cline;
4620 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4621 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4622 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4623 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4624 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4625 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4626 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4627
4628 if (debug)
4629 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4630
4631 /* For each of the static and global symbols defined, add them
4632 to the hash table of original symbols, so we can look up
4633 their values. */
4634
4635 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4636 sym_end_p1 = sym_start + fd_ptr->csym;
4637 for (sym = sym_start; sym < sym_end_p1; sym++)
4638 {
4639 switch ((st_t) sym->st)
4640 {
4641 default:
4642 break;
4643
4644 case st_Global:
4645 case st_Static:
4646 case st_Label:
4647 case st_Proc:
4648 case st_StaticProc:
4649 {
4650 auto symint_t hash_index;
4651 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4652 Size_t len = strlen (str);
4653 shash_t *shash_ptr = hash_string (str,
4654 (Ptrdiff_t) len,
4655 &orig_str_hash[0],
4656 &hash_index);
4657
4658 if (shash_ptr != (shash_t *) 0)
4659 error ("internal error, %s is already in original symbol table", str);
4660
4661 else
4662 {
4663 shash_ptr = allocate_shash ();
4664 shash_ptr->next = orig_str_hash[hash_index];
4665 orig_str_hash[hash_index] = shash_ptr;
4666
4667 shash_ptr->len = len;
4668 shash_ptr->indx = indexNil;
4669 shash_ptr->string = str;
4670 shash_ptr->sym_ptr = sym;
4671 }
4672 }
4673 break;
4674
4675 case st_End:
4676 if ((sc_t) sym->sc == sc_Text)
4677 {
4678 char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4679
4680 if (*str != '\0')
4681 {
4682 Size_t len = strlen (str);
4683 shash_t *shash_ptr = hash_string (str,
4684 (Ptrdiff_t) len,
4685 &orig_str_hash[0],
4686 (symint_t *) 0);
4687
4688 if (shash_ptr != (shash_t *) 0)
4689 shash_ptr->end_ptr = sym;
4690 }
4691 }
4692 break;
4693
4694 }
4695 }
4696
4697 if (debug)
4698 {
4699 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4700 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4701 }
4702
4703 /* Go through each of the procedures in this file, and add the
4704 procedure pointer to the hash entry for the given name. */
4705
4706 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4707 proc_end_p1 = proc_start + fd_ptr->cpd;
4708 for (proc = proc_start; proc < proc_end_p1; proc++)
4709 {
4710 SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4711 char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4712 Size_t len = strlen (str);
4713 shash_t *shash_ptr = hash_string (str,
4714 (Ptrdiff_t) len,
4715 &orig_str_hash[0],
4716 (symint_t *) 0);
4717
4718 if (shash_ptr == (shash_t *) 0)
4719 error ("internal error, function %s is not in original symbol table", str);
4720
4721 else
4722 shash_ptr->proc_ptr = proc;
4723 }
4724
4725 if (debug)
4726 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4727
4728 }
4729 cur_file_ptr = first_file;
4730
4731
4732 /* Copy all of the object file up to the symbol table. Originally
4733 we were going to use ftruncate, but that doesn't seem to work
4734 on Ultrix 3.1.... */
4735
4736 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4737 pfatal_with_name (obj_in_name);
4738
4739 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4740 pfatal_with_name (object_name);
4741
4742 for (remaining = orig_file_header.f_symptr;
4743 remaining > 0;
4744 remaining -= num_write)
4745 {
4746 num_write
4747 = (remaining <= (int) sizeof (buffer))
4748 ? remaining : (int) sizeof (buffer);
4749 sys_read = fread (buffer, 1, num_write, obj_in_stream);
4750 if (sys_read <= 0)
4751 pfatal_with_name (obj_in_name);
4752
4753 else if (sys_read != num_write)
4754 fatal ("wanted to read %d bytes from %s, system returned %d",
4755 num_write,
4756 obj_in_name,
4757 sys_read);
4758
4759 sys_write = fwrite (buffer, 1, num_write, object_stream);
4760 if (sys_write <= 0)
4761 pfatal_with_name (object_name);
4762
4763 else if (sys_write != num_write)
4764 fatal ("wrote %d bytes to %s, system returned %d",
4765 num_write,
4766 object_name,
4767 sys_write);
4768 }
4769 }
4770
4771 \f
4772 /* Ye olde main program. */
4773
4774 extern int main PARAMS ((int, char **));
4775
4776 int
4777 main (argc, argv)
4778 int argc;
4779 char **argv;
4780 {
4781 int iflag = 0;
4782 char *p = strrchr (argv[0], '/');
4783 char *num_end;
4784 int option;
4785 int i;
4786
4787 progname = (p != 0) ? p+1 : argv[0];
4788
4789 (void) signal (SIGSEGV, catch_signal);
4790 (void) signal (SIGBUS, catch_signal);
4791 (void) signal (SIGABRT, catch_signal);
4792
4793 #if !defined(__SABER__) && !defined(lint)
4794 if (sizeof (efdr_t) > PAGE_USIZE)
4795 fatal ("efdr_t has a sizeof %d bytes, when it should be less than %d",
4796 (int) sizeof (efdr_t),
4797 (int) PAGE_USIZE);
4798
4799 if (sizeof (page_t) != PAGE_USIZE)
4800 fatal ("page_t has a sizeof %d bytes, when it should be %d",
4801 (int) sizeof (page_t),
4802 (int) PAGE_USIZE);
4803
4804 #endif
4805
4806 alloc_counts[ alloc_type_none ].alloc_name = "none";
4807 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4808 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4809 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4810 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4811 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4812 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4813 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4814 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4815
4816 int_type_info = type_info_init;
4817 int_type_info.basic_type = bt_Int;
4818
4819 void_type_info = type_info_init;
4820 void_type_info.basic_type = bt_Void;
4821
4822 while ((option = getopt_long (argc, argv, "d:i:I:o:v", options, NULL)) != -1)
4823 switch (option)
4824 {
4825 default:
4826 had_errors++;
4827 break;
4828
4829 case 'd':
4830 debug = strtol (optarg, &num_end, 0);
4831 if ((unsigned) debug > 4 || num_end == optarg)
4832 had_errors++;
4833
4834 break;
4835
4836 case 'I':
4837 if (rename_output || obj_in_name != (char *) 0)
4838 had_errors++;
4839 else
4840 rename_output = 1;
4841
4842 /* fall through to 'i' case. */
4843
4844 case 'i':
4845 if (obj_in_name == (char *) 0)
4846 {
4847 obj_in_name = optarg;
4848 iflag++;
4849 }
4850 else
4851 had_errors++;
4852 break;
4853
4854 case 'o':
4855 if (object_name == (char *) 0)
4856 object_name = optarg;
4857 else
4858 had_errors++;
4859 break;
4860
4861 case 'v':
4862 verbose++;
4863 break;
4864
4865 case 'V':
4866 version++;
4867 break;
4868 }
4869
4870 if (version)
4871 {
4872 printf (_("mips-tfile (GCC) %s\n"), version_string);
4873 fputs (_("Copyright (C) 2003 Free Software Foundation, Inc.\n"), stdout);
4874 fputs (_("This is free software; see the source for copying conditions. There is NO\n\
4875 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"),
4876 stdout);
4877 exit (0);
4878 }
4879
4880 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4881 obj_in_name = argv[--argc];
4882
4883 if (object_name == (char *) 0 && optind <= argc - 2)
4884 object_name = argv[--argc];
4885
4886 /* If there is an output name, but no input name use
4887 the same file for both, deleting the name between
4888 opening it for input and opening it for output. */
4889 if (obj_in_name == (char *) 0 && object_name != (char *) 0)
4890 {
4891 obj_in_name = object_name;
4892 delete_input = 1;
4893 }
4894
4895 if (optind != argc - 1)
4896 had_errors++;
4897
4898 if (verbose || had_errors)
4899 {
4900 fprintf (stderr, _("mips-tfile (GCC) %s"), version_string);
4901 #ifdef TARGET_VERSION
4902 TARGET_VERSION;
4903 #endif
4904 fputc ('\n', stderr);
4905 }
4906
4907 if (object_name == (char *) 0 || had_errors)
4908 {
4909 fprintf (stderr, _("Calling Sequence:\n"));
4910 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4911 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4912 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4913 fprintf (stderr, "\n");
4914 fprintf (stderr, _("Debug levels are:\n"));
4915 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4916 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4917 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4918 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4919 return 1;
4920 }
4921
4922 if (obj_in_name == (char *) 0)
4923 obj_in_name = object_name;
4924
4925 if (rename_output && rename (object_name, obj_in_name) != 0)
4926 {
4927 char *buffer = (char *) allocate_multiple_pages (4);
4928 int len;
4929 int len2;
4930 int in_fd;
4931 int out_fd;
4932
4933 /* Rename failed, copy input file */
4934 in_fd = open (object_name, O_RDONLY, 0666);
4935 if (in_fd < 0)
4936 pfatal_with_name (object_name);
4937
4938 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4939 if (out_fd < 0)
4940 pfatal_with_name (obj_in_name);
4941
4942 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4943 {
4944 len2 = write (out_fd, buffer, len);
4945 if (len2 < 0)
4946 pfatal_with_name (object_name);
4947
4948 if (len != len2)
4949 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4950 }
4951
4952 free_multiple_pages ((page_t *) buffer, 4);
4953
4954 if (len < 0)
4955 pfatal_with_name (object_name);
4956
4957 if (close (in_fd) < 0)
4958 pfatal_with_name (object_name);
4959
4960 if (close (out_fd) < 0)
4961 pfatal_with_name (obj_in_name);
4962 }
4963
4964 /* Must open input before output, since the output may be the same file, and
4965 we need to get the input handle before truncating it. */
4966 obj_in_stream = fopen (obj_in_name, "r");
4967 if (obj_in_stream == (FILE *) 0)
4968 pfatal_with_name (obj_in_name);
4969
4970 if (delete_input && unlink (obj_in_name) != 0)
4971 pfatal_with_name (obj_in_name);
4972
4973 object_stream = fopen (object_name, "w");
4974 if (object_stream == (FILE *) 0)
4975 pfatal_with_name (object_name);
4976
4977 if (strcmp (argv[optind], "-") != 0)
4978 {
4979 input_name = argv[optind];
4980 if (freopen (argv[optind], "r", stdin) != stdin)
4981 pfatal_with_name (argv[optind]);
4982 }
4983
4984 copy_object (); /* scan & copy object file */
4985 parse_input (); /* scan all of input */
4986
4987 update_headers (); /* write out tfile */
4988 write_object ();
4989
4990 if (debug)
4991 {
4992 fprintf (stderr, "\n\tAllocation summary:\n\n");
4993 for (i = (int) alloc_type_none; i < (int) alloc_type_last; i++)
4994 if (alloc_counts[i].total_alloc)
4995 {
4996 fprintf (stderr,
4997 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4998 alloc_counts[i].alloc_name,
4999 alloc_counts[i].total_alloc,
5000 alloc_counts[i].total_free,
5001 alloc_counts[i].total_pages);
5002 }
5003 }
5004
5005 return (had_errors) ? 1 : 0;
5006 }
5007
5008 \f
5009 /* Catch a signal and exit without dumping core. */
5010
5011 STATIC void
5012 catch_signal (signum)
5013 int signum;
5014 {
5015 (void) signal (signum, SIG_DFL); /* just in case... */
5016 fatal ("%s", strsignal (signum));
5017 }
5018
5019 /* Print a fatal error message. NAME is the text.
5020 Also include a system error message based on `errno'. */
5021
5022 void
5023 pfatal_with_name (msg)
5024 const char *msg;
5025 {
5026 int save_errno = errno; /* just in case.... */
5027 if (line_number > 0)
5028 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5029 else
5030 fprintf (stderr, "%s:", progname);
5031
5032 errno = save_errno;
5033 if (errno == 0)
5034 fprintf (stderr, "[errno = 0] %s\n", msg);
5035 else
5036 perror (msg);
5037
5038 exit (1);
5039 }
5040
5041 \f
5042 /* Procedure to abort with an out of bounds error message. It has
5043 type int, so it can be used with an ?: expression within the
5044 ORIG_xxx macros, but the function never returns. */
5045
5046 static int
5047 out_of_bounds (indx, max, str, prog_line)
5048 symint_t indx; /* index that is out of bounds */
5049 symint_t max; /* maximum index */
5050 const char *str; /* string to print out */
5051 int prog_line; /* line number within mips-tfile.c */
5052 {
5053 if (indx < max) /* just in case */
5054 return 0;
5055
5056 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5057 progname, input_name, line_number, indx, str, max, prog_line);
5058
5059 exit (1);
5060 return 0; /* turn off warning messages */
5061 }
5062
5063 \f
5064 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5065 like sbrk's behind its back (or sbrk isn't available). If we use
5066 sbrk, we assume it gives us zeroed pages. */
5067
5068 #ifndef MALLOC_CHECK
5069 #ifdef USE_MALLOC
5070
5071 STATIC page_t *
5072 allocate_cluster (npages)
5073 Size_t npages;
5074 {
5075 page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5076
5077 if (debug > 3)
5078 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5079
5080 return value;
5081 }
5082
5083 #else /* USE_MALLOC */
5084
5085 STATIC page_t *
5086 allocate_cluster (npages)
5087 Size_t npages;
5088 {
5089 page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5090 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5091
5092 if (offset != 0) /* align to a page boundary */
5093 {
5094 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5095 pfatal_with_name ("allocate_cluster");
5096
5097 ptr = (page_t *) (((char *) ptr) + PAGE_SIZE - offset);
5098 }
5099
5100 if (sbrk (npages * PAGE_USIZE) == (char *) -1)
5101 pfatal_with_name ("allocate_cluster");
5102
5103 if (debug > 3)
5104 {
5105 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5106 (unsigned long) npages);
5107 fprintf (stderr, HOST_PTR_PRINTF, (void *) ptr);
5108 fputs ("\n", stderr);
5109 }
5110
5111 return ptr;
5112 }
5113
5114 #endif /* USE_MALLOC */
5115
5116
5117 static page_t *cluster_ptr = NULL;
5118 static unsigned pages_left = 0;
5119
5120 #endif /* MALLOC_CHECK */
5121
5122
5123 /* Allocate some pages (which is initialized to 0). */
5124
5125 STATIC page_t *
5126 allocate_multiple_pages (npages)
5127 Size_t npages;
5128 {
5129 #ifndef MALLOC_CHECK
5130 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5131 {
5132 pages_left = MAX_CLUSTER_PAGES;
5133 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5134 }
5135
5136 if (npages <= pages_left)
5137 {
5138 page_t *ptr = cluster_ptr;
5139 cluster_ptr += npages;
5140 pages_left -= npages;
5141 return ptr;
5142 }
5143
5144 return allocate_cluster (npages);
5145
5146 #else /* MALLOC_CHECK */
5147 return (page_t *) xcalloc (npages, PAGE_SIZE);
5148
5149 #endif /* MALLOC_CHECK */
5150 }
5151
5152
5153 /* Release some pages. */
5154
5155 STATIC void
5156 free_multiple_pages (page_ptr, npages)
5157 page_t *page_ptr;
5158 Size_t npages;
5159 {
5160 #ifndef MALLOC_CHECK
5161 if (pages_left == 0)
5162 {
5163 cluster_ptr = page_ptr;
5164 pages_left = npages;
5165 }
5166
5167 else if ((page_ptr + npages) == cluster_ptr)
5168 {
5169 cluster_ptr -= npages;
5170 pages_left += npages;
5171 }
5172
5173 /* otherwise the page is not freed. If more than call is
5174 done, we probably should worry about it, but at present,
5175 the free pages is done right after an allocate. */
5176
5177 #else /* MALLOC_CHECK */
5178 free (page_ptr);
5179
5180 #endif /* MALLOC_CHECK */
5181 }
5182
5183
5184 /* Allocate one page (which is initialized to 0). */
5185
5186 STATIC page_t *
5187 allocate_page ()
5188 {
5189 #ifndef MALLOC_CHECK
5190 if (pages_left == 0)
5191 {
5192 pages_left = MAX_CLUSTER_PAGES;
5193 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5194 }
5195
5196 pages_left--;
5197 return cluster_ptr++;
5198
5199 #else /* MALLOC_CHECK */
5200 return (page_t *) xcalloc (1, PAGE_SIZE);
5201
5202 #endif /* MALLOC_CHECK */
5203 }
5204
5205 \f
5206 /* Allocate scoping information. */
5207
5208 STATIC scope_t *
5209 allocate_scope ()
5210 {
5211 scope_t *ptr;
5212 static scope_t initial_scope;
5213
5214 #ifndef MALLOC_CHECK
5215 ptr = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5216 if (ptr != (scope_t *) 0)
5217 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr->free;
5218
5219 else
5220 {
5221 int unallocated = alloc_counts[ (int) alloc_type_scope ].unallocated;
5222 page_t *cur_page = alloc_counts[ (int) alloc_type_scope ].cur_page;
5223
5224 if (unallocated == 0)
5225 {
5226 unallocated = PAGE_SIZE / sizeof (scope_t);
5227 alloc_counts[ (int) alloc_type_scope ].cur_page = cur_page = allocate_page ();
5228 alloc_counts[ (int) alloc_type_scope ].total_pages++;
5229 }
5230
5231 ptr = &cur_page->scope[ --unallocated ];
5232 alloc_counts[ (int) alloc_type_scope ].unallocated = unallocated;
5233 }
5234
5235 #else
5236 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5237
5238 #endif
5239
5240 alloc_counts[ (int) alloc_type_scope ].total_alloc++;
5241 *ptr = initial_scope;
5242 return ptr;
5243 }
5244
5245 /* Free scoping information. */
5246
5247 STATIC void
5248 free_scope (ptr)
5249 scope_t *ptr;
5250 {
5251 alloc_counts[ (int) alloc_type_scope ].total_free++;
5252
5253 #ifndef MALLOC_CHECK
5254 ptr->free = alloc_counts[ (int) alloc_type_scope ].free_list.f_scope;
5255 alloc_counts[ (int) alloc_type_scope ].free_list.f_scope = ptr;
5256
5257 #else
5258 free (ptr);
5259 #endif
5260
5261 }
5262
5263 \f
5264 /* Allocate links for pages in a virtual array. */
5265
5266 STATIC vlinks_t *
5267 allocate_vlinks ()
5268 {
5269 vlinks_t *ptr;
5270 static vlinks_t initial_vlinks;
5271
5272 #ifndef MALLOC_CHECK
5273 int unallocated = alloc_counts[ (int) alloc_type_vlinks ].unallocated;
5274 page_t *cur_page = alloc_counts[ (int) alloc_type_vlinks ].cur_page;
5275
5276 if (unallocated == 0)
5277 {
5278 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5279 alloc_counts[ (int) alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5280 alloc_counts[ (int) alloc_type_vlinks ].total_pages++;
5281 }
5282
5283 ptr = &cur_page->vlinks[ --unallocated ];
5284 alloc_counts[ (int) alloc_type_vlinks ].unallocated = unallocated;
5285
5286 #else
5287 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5288
5289 #endif
5290
5291 alloc_counts[ (int) alloc_type_vlinks ].total_alloc++;
5292 *ptr = initial_vlinks;
5293 return ptr;
5294 }
5295
5296 \f
5297 /* Allocate string hash buckets. */
5298
5299 STATIC shash_t *
5300 allocate_shash ()
5301 {
5302 shash_t *ptr;
5303 static shash_t initial_shash;
5304
5305 #ifndef MALLOC_CHECK
5306 int unallocated = alloc_counts[ (int) alloc_type_shash ].unallocated;
5307 page_t *cur_page = alloc_counts[ (int) alloc_type_shash ].cur_page;
5308
5309 if (unallocated == 0)
5310 {
5311 unallocated = PAGE_SIZE / sizeof (shash_t);
5312 alloc_counts[ (int) alloc_type_shash ].cur_page = cur_page = allocate_page ();
5313 alloc_counts[ (int) alloc_type_shash ].total_pages++;
5314 }
5315
5316 ptr = &cur_page->shash[ --unallocated ];
5317 alloc_counts[ (int) alloc_type_shash ].unallocated = unallocated;
5318
5319 #else
5320 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5321
5322 #endif
5323
5324 alloc_counts[ (int) alloc_type_shash ].total_alloc++;
5325 *ptr = initial_shash;
5326 return ptr;
5327 }
5328
5329 \f
5330 /* Allocate type hash buckets. */
5331
5332 STATIC thash_t *
5333 allocate_thash ()
5334 {
5335 thash_t *ptr;
5336 static thash_t initial_thash;
5337
5338 #ifndef MALLOC_CHECK
5339 int unallocated = alloc_counts[ (int) alloc_type_thash ].unallocated;
5340 page_t *cur_page = alloc_counts[ (int) alloc_type_thash ].cur_page;
5341
5342 if (unallocated == 0)
5343 {
5344 unallocated = PAGE_SIZE / sizeof (thash_t);
5345 alloc_counts[ (int) alloc_type_thash ].cur_page = cur_page = allocate_page ();
5346 alloc_counts[ (int) alloc_type_thash ].total_pages++;
5347 }
5348
5349 ptr = &cur_page->thash[ --unallocated ];
5350 alloc_counts[ (int) alloc_type_thash ].unallocated = unallocated;
5351
5352 #else
5353 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5354
5355 #endif
5356
5357 alloc_counts[ (int) alloc_type_thash ].total_alloc++;
5358 *ptr = initial_thash;
5359 return ptr;
5360 }
5361
5362 \f
5363 /* Allocate structure, union, or enum tag information. */
5364
5365 STATIC tag_t *
5366 allocate_tag ()
5367 {
5368 tag_t *ptr;
5369 static tag_t initial_tag;
5370
5371 #ifndef MALLOC_CHECK
5372 ptr = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5373 if (ptr != (tag_t *) 0)
5374 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr->free;
5375
5376 else
5377 {
5378 int unallocated = alloc_counts[ (int) alloc_type_tag ].unallocated;
5379 page_t *cur_page = alloc_counts[ (int) alloc_type_tag ].cur_page;
5380
5381 if (unallocated == 0)
5382 {
5383 unallocated = PAGE_SIZE / sizeof (tag_t);
5384 alloc_counts[ (int) alloc_type_tag ].cur_page = cur_page = allocate_page ();
5385 alloc_counts[ (int) alloc_type_tag ].total_pages++;
5386 }
5387
5388 ptr = &cur_page->tag[ --unallocated ];
5389 alloc_counts[ (int) alloc_type_tag ].unallocated = unallocated;
5390 }
5391
5392 #else
5393 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5394
5395 #endif
5396
5397 alloc_counts[ (int) alloc_type_tag ].total_alloc++;
5398 *ptr = initial_tag;
5399 return ptr;
5400 }
5401
5402 /* Free scoping information. */
5403
5404 STATIC void
5405 free_tag (ptr)
5406 tag_t *ptr;
5407 {
5408 alloc_counts[ (int) alloc_type_tag ].total_free++;
5409
5410 #ifndef MALLOC_CHECK
5411 ptr->free = alloc_counts[ (int) alloc_type_tag ].free_list.f_tag;
5412 alloc_counts[ (int) alloc_type_tag ].free_list.f_tag = ptr;
5413
5414 #else
5415 free (ptr);
5416 #endif
5417
5418 }
5419
5420 \f
5421 /* Allocate forward reference to a yet unknown tag. */
5422
5423 STATIC forward_t *
5424 allocate_forward ()
5425 {
5426 forward_t *ptr;
5427 static forward_t initial_forward;
5428
5429 #ifndef MALLOC_CHECK
5430 ptr = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5431 if (ptr != (forward_t *) 0)
5432 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr->free;
5433
5434 else
5435 {
5436 int unallocated = alloc_counts[ (int) alloc_type_forward ].unallocated;
5437 page_t *cur_page = alloc_counts[ (int) alloc_type_forward ].cur_page;
5438
5439 if (unallocated == 0)
5440 {
5441 unallocated = PAGE_SIZE / sizeof (forward_t);
5442 alloc_counts[ (int) alloc_type_forward ].cur_page = cur_page = allocate_page ();
5443 alloc_counts[ (int) alloc_type_forward ].total_pages++;
5444 }
5445
5446 ptr = &cur_page->forward[ --unallocated ];
5447 alloc_counts[ (int) alloc_type_forward ].unallocated = unallocated;
5448 }
5449
5450 #else
5451 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5452
5453 #endif
5454
5455 alloc_counts[ (int) alloc_type_forward ].total_alloc++;
5456 *ptr = initial_forward;
5457 return ptr;
5458 }
5459
5460 /* Free scoping information. */
5461
5462 STATIC void
5463 free_forward (ptr)
5464 forward_t *ptr;
5465 {
5466 alloc_counts[ (int) alloc_type_forward ].total_free++;
5467
5468 #ifndef MALLOC_CHECK
5469 ptr->free = alloc_counts[ (int) alloc_type_forward ].free_list.f_forward;
5470 alloc_counts[ (int) alloc_type_forward ].free_list.f_forward = ptr;
5471
5472 #else
5473 free (ptr);
5474 #endif
5475
5476 }
5477
5478 \f
5479 /* Allocate head of type hash list. */
5480
5481 STATIC thead_t *
5482 allocate_thead ()
5483 {
5484 thead_t *ptr;
5485 static thead_t initial_thead;
5486
5487 #ifndef MALLOC_CHECK
5488 ptr = alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5489 if (ptr != (thead_t *) 0)
5490 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr->free;
5491
5492 else
5493 {
5494 int unallocated = alloc_counts[ (int) alloc_type_thead ].unallocated;
5495 page_t *cur_page = alloc_counts[ (int) alloc_type_thead ].cur_page;
5496
5497 if (unallocated == 0)
5498 {
5499 unallocated = PAGE_SIZE / sizeof (thead_t);
5500 alloc_counts[ (int) alloc_type_thead ].cur_page = cur_page = allocate_page ();
5501 alloc_counts[ (int) alloc_type_thead ].total_pages++;
5502 }
5503
5504 ptr = &cur_page->thead[ --unallocated ];
5505 alloc_counts[ (int) alloc_type_thead ].unallocated = unallocated;
5506 }
5507
5508 #else
5509 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5510
5511 #endif
5512
5513 alloc_counts[ (int) alloc_type_thead ].total_alloc++;
5514 *ptr = initial_thead;
5515 return ptr;
5516 }
5517
5518 /* Free scoping information. */
5519
5520 STATIC void
5521 free_thead (ptr)
5522 thead_t *ptr;
5523 {
5524 alloc_counts[ (int) alloc_type_thead ].total_free++;
5525
5526 #ifndef MALLOC_CHECK
5527 ptr->free = (thead_t *) alloc_counts[ (int) alloc_type_thead ].free_list.f_thead;
5528 alloc_counts[ (int) alloc_type_thead ].free_list.f_thead = ptr;
5529
5530 #else
5531 free (ptr);
5532 #endif
5533
5534 }
5535
5536 #endif /* MIPS_DEBUGGING_INFO */
5537
5538 \f
5539 /* Output an error message and exit. */
5540
5541 void
5542 fatal (const char *format, ...)
5543 {
5544 va_list ap;
5545
5546 va_start (ap, format);
5547
5548 if (line_number > 0)
5549 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5550 else
5551 fprintf (stderr, "%s:", progname);
5552
5553 vfprintf (stderr, format, ap);
5554 va_end (ap);
5555 fprintf (stderr, "\n");
5556 if (line_number > 0)
5557 fprintf (stderr, "line:\t%s\n", cur_line_start);
5558
5559 saber_stop ();
5560 exit (1);
5561 }
5562
5563 void
5564 error (const char *format, ...)
5565 {
5566 va_list ap;
5567
5568 va_start (ap, format);
5569
5570 if (line_number > 0)
5571 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5572 else
5573 fprintf (stderr, "%s:", progname);
5574
5575 vfprintf (stderr, format, ap);
5576 fprintf (stderr, "\n");
5577 if (line_number > 0)
5578 fprintf (stderr, "line:\t%s\n", cur_line_start);
5579
5580 had_errors++;
5581 va_end (ap);
5582
5583 saber_stop ();
5584 }
5585
5586 /* More 'friendly' abort that prints the line and file.
5587 config.h can #define abort fancy_abort if you like that sort of thing. */
5588
5589 void
5590 fancy_abort ()
5591 {
5592 fatal ("internal abort");
5593 }
5594 \f
5595
5596 /* When `malloc.c' is compiled with `rcheck' defined,
5597 it calls this function to report clobberage. */
5598
5599 void
5600 botch (s)
5601 const char *s;
5602 {
5603 fatal ("%s", s);
5604 }
Mirror of the offical gcc git repository hosted at gcc.gnu.org