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* pt.c (instantiate_decl): Tell the repository code about the
[official-gcc.git] / gcc / mips-tfile.c
blobff24ce8e9af5ac401073f5fc106e65b13ea3e936
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,
6 1999, 2000 Free Software Foundation, Inc.
7 Contributed by Michael Meissner (meissner@cygnus.com).
8
9 This file is part of GNU CC.
10
11 GNU CC is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2, or (at your option)
14 any later version.
15
16 GNU CC is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with GNU CC; see the file COPYING. If not, write to
23 the Free Software Foundation, 59 Temple Place - Suite 330,
24 Boston, MA 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 indexs 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 "version.h"
606 #include "intl.h"
607
608 #ifndef __SABER__
609 #define saber_stop()
610 #endif
611
612 #ifndef __LINE__
613 #define __LINE__ 0
614 #endif
615
616 #define __proto(x) PARAMS(x)
617 typedef PTR PTR_T;
618 typedef const PTR_T CPTR_T;
619
620 /* Due to size_t being defined in sys/types.h and different
621 in stddef.h, we have to do this by hand..... Note, these
622 types are correct for MIPS based systems, and may not be
623 correct for other systems. Ultrix 4.0 and Silicon Graphics
624 have this fixed, but since the following is correct, and
625 the fact that including stddef.h gets you GCC's version
626 instead of the standard one it's not worth it to fix it. */
627
628 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
629 #define Size_t long unsigned int
630 #else
631 #define Size_t unsigned int
632 #endif
633 #define Ptrdiff_t long
634
635 /* The following might be called from obstack or malloc,
636 so they can't be static. */
637
638 extern void pfatal_with_name
639 __proto((const char *)) ATTRIBUTE_NORETURN;
640 extern void fancy_abort __proto((void)) ATTRIBUTE_NORETURN;
641 void botch __proto((const char *)) ATTRIBUTE_NORETURN;
642
643 extern void fatal PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1 ATTRIBUTE_NORETURN;
644 extern void error PARAMS ((const char *format, ...)) ATTRIBUTE_PRINTF_1;
645 \f
646 #ifndef MIPS_DEBUGGING_INFO
647
648 static int line_number;
649 static int cur_line_start;
650 static int debug;
651 static int had_errors;
652 static const char *progname;
653 static const char *input_name;
654
655 int
656 main ()
657 {
658 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
659 exit (1);
660 }
661
662 #else /* MIPS_DEBUGGING defined */
663 \f
664 /* The local and global symbols have a field index, so undo any defines
665 of index -> strchr and rindex -> strrchr. */
666
667 #undef rindex
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 #if defined (USG) || !defined (HAVE_STAB_H)
679 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
680 #else
681 #include <stab.h> /* On BSD, use the system's stab.h. */
682 #endif /* not USG */
683
684 #ifdef __GNU_STAB__
685 #define STAB_CODE_TYPE enum __stab_debug_code
686 #else
687 #define STAB_CODE_TYPE int
688 #endif
689
690 #ifndef MALLOC_CHECK
691 #ifdef __SABER__
692 #define MALLOC_CHECK
693 #endif
694 #endif
695
696 #define IS_ASM_IDENT(ch) \
697 (ISALNUM (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
698
699 \f
700 /* Redefinition of storage classes as an enumeration for better
701 debugging. */
702
703 typedef enum sc {
704 sc_Nil = scNil, /* no storage class */
705 sc_Text = scText, /* text symbol */
706 sc_Data = scData, /* initialized data symbol */
707 sc_Bss = scBss, /* un-initialized data symbol */
708 sc_Register = scRegister, /* value of symbol is register number */
709 sc_Abs = scAbs, /* value of symbol is absolute */
710 sc_Undefined = scUndefined, /* who knows? */
711 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
712 sc_Bits = scBits, /* this is a bit field */
713 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
714 sc_RegImage = scRegImage, /* register value saved on stack */
715 sc_Info = scInfo, /* symbol contains debugger information */
716 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
717 sc_SData = scSData, /* load time only small data */
718 sc_SBss = scSBss, /* load time only small common */
719 sc_RData = scRData, /* load time only read only data */
720 sc_Var = scVar, /* Var parameter (fortran,pascal) */
721 sc_Common = scCommon, /* common variable */
722 sc_SCommon = scSCommon, /* small common */
723 sc_VarRegister = scVarRegister, /* Var parameter in a register */
724 sc_Variant = scVariant, /* Variant record */
725 sc_SUndefined = scSUndefined, /* small undefined(external) data */
726 sc_Init = scInit, /* .init section symbol */
727 sc_Max = scMax /* Max storage class+1 */
728 } sc_t;
729
730 /* Redefinition of symbol type. */
731
732 typedef enum st {
733 st_Nil = stNil, /* Nuthin' special */
734 st_Global = stGlobal, /* external symbol */
735 st_Static = stStatic, /* static */
736 st_Param = stParam, /* procedure argument */
737 st_Local = stLocal, /* local variable */
738 st_Label = stLabel, /* label */
739 st_Proc = stProc, /* " " Procedure */
740 st_Block = stBlock, /* beginning of block */
741 st_End = stEnd, /* end (of anything) */
742 st_Member = stMember, /* member (of anything - struct/union/enum */
743 st_Typedef = stTypedef, /* type definition */
744 st_File = stFile, /* file name */
745 st_RegReloc = stRegReloc, /* register relocation */
746 st_Forward = stForward, /* forwarding address */
747 st_StaticProc = stStaticProc, /* load time only static procs */
748 st_Constant = stConstant, /* const */
749 st_Str = stStr, /* string */
750 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
751 st_Expr = stExpr, /* 2+2 vs. 4 */
752 st_Type = stType, /* post-coercion SER */
753 st_Max = stMax /* max type+1 */
754 } st_t;
755
756 /* Redefinition of type qualifiers. */
757
758 typedef enum tq {
759 tq_Nil = tqNil, /* bt is what you see */
760 tq_Ptr = tqPtr, /* pointer */
761 tq_Proc = tqProc, /* procedure */
762 tq_Array = tqArray, /* duh */
763 tq_Far = tqFar, /* longer addressing - 8086/8 land */
764 tq_Vol = tqVol, /* volatile */
765 tq_Max = tqMax /* Max type qualifier+1 */
766 } tq_t;
767
768 /* Redefinition of basic types. */
769
770 typedef enum bt {
771 bt_Nil = btNil, /* undefined */
772 bt_Adr = btAdr, /* address - integer same size as pointer */
773 bt_Char = btChar, /* character */
774 bt_UChar = btUChar, /* unsigned character */
775 bt_Short = btShort, /* short */
776 bt_UShort = btUShort, /* unsigned short */
777 bt_Int = btInt, /* int */
778 bt_UInt = btUInt, /* unsigned int */
779 bt_Long = btLong, /* long */
780 bt_ULong = btULong, /* unsigned long */
781 bt_Float = btFloat, /* float (real) */
782 bt_Double = btDouble, /* Double (real) */
783 bt_Struct = btStruct, /* Structure (Record) */
784 bt_Union = btUnion, /* Union (variant) */
785 bt_Enum = btEnum, /* Enumerated */
786 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
787 bt_Range = btRange, /* subrange of int */
788 bt_Set = btSet, /* pascal sets */
789 bt_Complex = btComplex, /* fortran complex */
790 bt_DComplex = btDComplex, /* fortran double complex */
791 bt_Indirect = btIndirect, /* forward or unnamed typedef */
792 bt_FixedDec = btFixedDec, /* Fixed Decimal */
793 bt_FloatDec = btFloatDec, /* Float Decimal */
794 bt_String = btString, /* Varying Length Character String */
795 bt_Bit = btBit, /* Aligned Bit String */
796 bt_Picture = btPicture, /* Picture */
797
798 #ifdef btVoid
799 bt_Void = btVoid, /* Void */
800 #else
801 #define bt_Void bt_Nil
802 #endif
803
804 bt_Max = btMax /* Max basic type+1 */
805 } bt_t;
806
807 \f
808
809 /* Basic COFF storage classes. */
810 enum coff_storage {
811 C_EFCN = -1,
812 C_NULL = 0,
813 C_AUTO = 1,
814 C_EXT = 2,
815 C_STAT = 3,
816 C_REG = 4,
817 C_EXTDEF = 5,
818 C_LABEL = 6,
819 C_ULABEL = 7,
820 C_MOS = 8,
821 C_ARG = 9,
822 C_STRTAG = 10,
823 C_MOU = 11,
824 C_UNTAG = 12,
825 C_TPDEF = 13,
826 C_USTATIC = 14,
827 C_ENTAG = 15,
828 C_MOE = 16,
829 C_REGPARM = 17,
830 C_FIELD = 18,
831 C_BLOCK = 100,
832 C_FCN = 101,
833 C_EOS = 102,
834 C_FILE = 103,
835 C_LINE = 104,
836 C_ALIAS = 105,
837 C_HIDDEN = 106,
838 C_MAX = 107
839 } coff_storage_t;
840
841 /* Regular COFF fundamental type. */
842 typedef enum coff_type {
843 T_NULL = 0,
844 T_ARG = 1,
845 T_CHAR = 2,
846 T_SHORT = 3,
847 T_INT = 4,
848 T_LONG = 5,
849 T_FLOAT = 6,
850 T_DOUBLE = 7,
851 T_STRUCT = 8,
852 T_UNION = 9,
853 T_ENUM = 10,
854 T_MOE = 11,
855 T_UCHAR = 12,
856 T_USHORT = 13,
857 T_UINT = 14,
858 T_ULONG = 15,
859 T_MAX = 16
860 } coff_type_t;
861
862 /* Regular COFF derived types. */
863 typedef enum coff_dt {
864 DT_NON = 0,
865 DT_PTR = 1,
866 DT_FCN = 2,
867 DT_ARY = 3,
868 DT_MAX = 4
869 } coff_dt_t;
870
871 #define N_BTMASK 017 /* bitmask to isolate basic type */
872 #define N_TMASK 003 /* bitmask to isolate derived type */
873 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
874 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
875 #define N_TQ 6 /* # of type qualifiers */
876
877 /* States for whether to hash type or not. */
878 typedef enum hash_state {
879 hash_no = 0, /* don't hash type */
880 hash_yes = 1, /* ok to hash type, or use previous hash */
881 hash_record = 2 /* ok to record hash, but don't use prev. */
882 } hash_state_t;
883
884
885 /* Types of different sized allocation requests. */
886 enum alloc_type {
887 alloc_type_none, /* dummy value */
888 alloc_type_scope, /* nested scopes linked list */
889 alloc_type_vlinks, /* glue linking pages in varray */
890 alloc_type_shash, /* string hash element */
891 alloc_type_thash, /* type hash element */
892 alloc_type_tag, /* struct/union/tag element */
893 alloc_type_forward, /* element to hold unknown tag */
894 alloc_type_thead, /* head of type hash list */
895 alloc_type_varray, /* general varray allocation */
896 alloc_type_last /* last+1 element for array bounds */
897 };
898
899 \f
900 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
901 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
902
903
904 /* Structures to provide n-number of virtual arrays, each of which can
905 grow linearly, and which are written in the object file as sequential
906 pages. On systems with a BSD malloc that define USE_MALLOC, the
907 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
908 adds its overhead, and rounds up to the next power of 2. Pages are
909 linked together via a linked list.
910
911 If PAGE_SIZE is > 4096, the string length in the shash_t structure
912 can't be represented (assuming there are strings > 4096 bytes). */
913
914 #ifndef PAGE_SIZE
915 #define PAGE_SIZE 4096 /* size of varray pages */
916 #endif
917
918 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
919
920
921 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
922 #ifndef USE_MALLOC /* in one memory request */
923 #define MAX_CLUSTER_PAGES 64
924 #else
925 #define MAX_CLUSTER_PAGES 63
926 #endif
927 #endif
928
929
930 /* Linked list connecting separate page allocations. */
931 typedef struct vlinks {
932 struct vlinks *prev; /* previous set of pages */
933 struct vlinks *next; /* next set of pages */
934 union page *datum; /* start of page */
935 unsigned long start_index; /* starting index # of page */
936 } vlinks_t;
937
938
939 /* Virtual array header. */
940 typedef struct varray {
941 vlinks_t *first; /* first page link */
942 vlinks_t *last; /* last page link */
943 unsigned long num_allocated; /* # objects allocated */
944 unsigned short object_size; /* size in bytes of each object */
945 unsigned short objects_per_page; /* # objects that can fit on a page */
946 unsigned short objects_last_page; /* # objects allocated on last page */
947 } varray_t;
948
949 #ifndef MALLOC_CHECK
950 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
951 #else
952 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
953 #endif
954
955 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
956 (vlinks_t *) 0, /* first */ \
957 (vlinks_t *) 0, /* last */ \
958 0, /* num_allocated */ \
959 sizeof (type), /* object_size */ \
960 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
961 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
962 }
963
964 /* Master type for indexes within the symbol table. */
965 typedef unsigned long symint_t;
966
967
968 /* Linked list support for nested scopes (file, block, structure, etc.). */
969 typedef struct scope {
970 struct scope *prev; /* previous scope level */
971 struct scope *free; /* free list pointer */
972 SYMR *lsym; /* pointer to local symbol node */
973 symint_t lnumber; /* lsym index */
974 st_t type; /* type of the node */
975 } scope_t;
976
977
978 /* Forward reference list for tags referenced, but not yet defined. */
979 typedef struct forward {
980 struct forward *next; /* next forward reference */
981 struct forward *free; /* free list pointer */
982 AUXU *ifd_ptr; /* pointer to store file index */
983 AUXU *index_ptr; /* pointer to store symbol index */
984 AUXU *type_ptr; /* pointer to munge type info */
985 } forward_t;
986
987
988 /* Linked list support for tags. The first tag in the list is always
989 the current tag for that block. */
990 typedef struct tag {
991 struct tag *free; /* free list pointer */
992 struct shash *hash_ptr; /* pointer to the hash table head */
993 struct tag *same_name; /* tag with same name in outer scope */
994 struct tag *same_block; /* next tag defined in the same block. */
995 struct forward *forward_ref; /* list of forward references */
996 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
997 symint_t ifd; /* file # tag defined in */
998 symint_t indx; /* index within file's local symbols */
999 } tag_t;
1000
1001
1002 /* Head of a block's linked list of tags. */
1003 typedef struct thead {
1004 struct thead *prev; /* previous block */
1005 struct thead *free; /* free list pointer */
1006 struct tag *first_tag; /* first tag in block defined */
1007 } thead_t;
1008
1009
1010 /* Union containing pointers to each the small structures which are freed up. */
1011 typedef union small_free {
1012 scope_t *f_scope; /* scope structure */
1013 thead_t *f_thead; /* tag head structure */
1014 tag_t *f_tag; /* tag element structure */
1015 forward_t *f_forward; /* forward tag reference */
1016 } small_free_t;
1017
1018
1019 /* String hash table support. The size of the hash table must fit
1020 within a page. */
1021
1022 #ifndef SHASH_SIZE
1023 #define SHASH_SIZE 1009
1024 #endif
1025
1026 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1027
1028 typedef struct shash {
1029 struct shash *next; /* next hash value */
1030 char *string; /* string we are hashing */
1031 symint_t len; /* string length */
1032 symint_t indx; /* index within string table */
1033 EXTR *esym_ptr; /* global symbol pointer */
1034 SYMR *sym_ptr; /* local symbol pointer */
1035 SYMR *end_ptr; /* symbol pointer to end block */
1036 tag_t *tag_ptr; /* tag pointer */
1037 PDR *proc_ptr; /* procedure descriptor pointer */
1038 } shash_t;
1039
1040
1041 /* Type hash table support. The size of the hash table must fit
1042 within a page with the other extended file descriptor information.
1043 Because unique types which are hashed are fewer in number than
1044 strings, we use a smaller hash value. */
1045
1046 #ifndef THASH_SIZE
1047 #define THASH_SIZE 113
1048 #endif
1049
1050 typedef struct thash {
1051 struct thash *next; /* next hash value */
1052 AUXU type; /* type we are hashing */
1053 symint_t indx; /* index within string table */
1054 } thash_t;
1055
1056
1057 /* Extended file descriptor that contains all of the support necessary
1058 to add things to each file separately. */
1059 typedef struct efdr {
1060 FDR fdr; /* File header to be written out */
1061 FDR *orig_fdr; /* original file header */
1062 char *name; /* filename */
1063 int name_len; /* length of the filename */
1064 symint_t void_type; /* aux. pointer to 'void' type */
1065 symint_t int_type; /* aux. pointer to 'int' type */
1066 scope_t *cur_scope; /* current nested scopes */
1067 symint_t file_index; /* current file number */
1068 int nested_scopes; /* # nested scopes */
1069 varray_t strings; /* local strings */
1070 varray_t symbols; /* local symbols */
1071 varray_t procs; /* procedures */
1072 varray_t aux_syms; /* auxiliary symbols */
1073 struct efdr *next_file; /* next file descriptor */
1074 /* string/type hash tables */
1075 shash_t **shash_head; /* string hash table */
1076 thash_t *thash_head[THASH_SIZE];
1077 } efdr_t;
1078
1079 /* Pre-initialized extended file structure. */
1080 static efdr_t init_file =
1081 {
1082 { /* FDR structure */
1083 #ifdef __alpha
1084 0, /* adr: memory address of beginning of file */
1085 0, /* cbLineOffset: byte offset from header for this file ln's */
1086 0, /* cbLine: size of lines for this file */
1087 0, /* cbSs: number of bytes in the ss */
1088 0, /* rss: file name (of source, if known) */
1089 0, /* issBase: file's string space */
1090 0, /* isymBase: beginning of symbols */
1091 0, /* csym: count file's of symbols */
1092 0, /* ilineBase: file's line symbols */
1093 0, /* cline: count of file's line symbols */
1094 0, /* ioptBase: file's optimization entries */
1095 0, /* copt: count of file's optimization entries */
1096 0, /* ipdFirst: start of procedures for this file */
1097 0, /* cpd: count of procedures for this file */
1098 0, /* iauxBase: file's auxiliary entries */
1099 0, /* caux: count of file's auxiliary entries */
1100 0, /* rfdBase: index into the file indirect table */
1101 0, /* crfd: count file indirect entries */
1102 langC, /* lang: language for this file */
1103 1, /* fMerge: whether this file can be merged */
1104 0, /* fReadin: true if read in (not just created) */
1105 #ifdef HOST_WORDS_BIG_ENDIAN
1106 1, /* fBigendian: if 1, compiled on big endian machine */
1107 #else
1108 0, /* fBigendian: if 1, compiled on big endian machine */
1109 #endif
1110 0, /* fTrim: whether the symbol table was trimmed */
1111 GLEVEL_2, /* glevel: level this file was compiled with */
1112 0, /* reserved: reserved for future use */
1113 #else
1114 0, /* adr: memory address of beginning of file */
1115 0, /* rss: file name (of source, if known) */
1116 0, /* issBase: file's string space */
1117 0, /* cbSs: number of bytes in the ss */
1118 0, /* isymBase: beginning of symbols */
1119 0, /* csym: count file's of symbols */
1120 0, /* ilineBase: file's line symbols */
1121 0, /* cline: count of file's line symbols */
1122 0, /* ioptBase: file's optimization entries */
1123 0, /* copt: count of file's optimization entries */
1124 0, /* ipdFirst: start of procedures for this file */
1125 0, /* cpd: count of procedures for this file */
1126 0, /* iauxBase: file's auxiliary entries */
1127 0, /* caux: count of file's auxiliary entries */
1128 0, /* rfdBase: index into the file indirect table */
1129 0, /* crfd: count file indirect entries */
1130 langC, /* lang: language for this file */
1131 1, /* fMerge: whether this file can be merged */
1132 0, /* fReadin: true if read in (not just created) */
1133 #ifdef HOST_WORDS_BIG_ENDIAN
1134 1, /* fBigendian: if 1, compiled on big endian machine */
1135 #else
1136 0, /* fBigendian: if 1, compiled on big endian machine */
1137 #endif
1138 GLEVEL_2, /* glevel: level this file was compiled with */
1139 0, /* reserved: reserved for future use */
1140 0, /* cbLineOffset: byte offset from header for this file ln's */
1141 0, /* cbLine: size of lines for this file */
1142 #endif
1143 },
1144
1145 (FDR *) 0, /* orig_fdr: original file header pointer */
1146 (char *) 0, /* name: pointer to filename */
1147 0, /* name_len: length of filename */
1148 0, /* void_type: ptr to aux node for void type */
1149 0, /* int_type: ptr to aux node for int type */
1150 (scope_t *) 0, /* cur_scope: current scope being processed */
1151 0, /* file_index: current file # */
1152 0, /* nested_scopes: # nested scopes */
1153 INIT_VARRAY (char), /* strings: local string varray */
1154 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1155 INIT_VARRAY (PDR), /* procs: procedure varray */
1156 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1157
1158 (struct efdr *) 0, /* next_file: next file structure */
1159
1160 (shash_t **) 0, /* shash_head: string hash table */
1161 { 0 }, /* thash_head: type hash table */
1162 };
1163
1164
1165 static efdr_t *first_file; /* first file descriptor */
1166 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1167
1168
1169 /* Union of various things that are held in pages. */
1170 typedef union page {
1171 char byte [ PAGE_SIZE ];
1172 unsigned char ubyte [ PAGE_SIZE ];
1173 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1174 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1175 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1176 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1177 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1178 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1179 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1180 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1181 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1182 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1183 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1184 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1185 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1186 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1187 } page_t;
1188
1189
1190 /* Structure holding allocation information for small sized structures. */
1191 typedef struct alloc_info {
1192 const char *alloc_name; /* name of this allocation type (must be first) */
1193 page_t *cur_page; /* current page being allocated from */
1194 small_free_t free_list; /* current free list if any */
1195 int unallocated; /* number of elements unallocated on page */
1196 int total_alloc; /* total number of allocations */
1197 int total_free; /* total number of frees */
1198 int total_pages; /* total number of pages allocated */
1199 } alloc_info_t;
1200
1201 /* Type information collected together. */
1202 typedef struct type_info {
1203 bt_t basic_type; /* basic type */
1204 coff_type_t orig_type; /* original COFF-based type */
1205 int num_tq; /* # type qualifiers */
1206 int num_dims; /* # dimensions */
1207 int num_sizes; /* # sizes */
1208 int extra_sizes; /* # extra sizes not tied with dims */
1209 tag_t * tag_ptr; /* tag pointer */
1210 int bitfield; /* symbol is a bitfield */
1211 int unknown_tag; /* this is an unknown tag */
1212 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1213 symint_t dimensions [N_TQ]; /* dimensions for each array */
1214 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1215 struct/union/enum + bitfield size */
1216 } type_info_t;
1217
1218 /* Pre-initialized type_info struct. */
1219 static type_info_t type_info_init = {
1220 bt_Nil, /* basic type */
1221 T_NULL, /* original COFF-based type */
1222 0, /* # type qualifiers */
1223 0, /* # dimensions */
1224 0, /* # sizes */
1225 0, /* sizes not tied with dims */
1226 NULL, /* ptr to tag */
1227 0, /* bitfield */
1228 0, /* unknown tag */
1229 { /* type qualifiers */
1230 tq_Nil,
1231 tq_Nil,
1232 tq_Nil,
1233 tq_Nil,
1234 tq_Nil,
1235 tq_Nil,
1236 },
1237 { /* dimensions */
1238 0,
1239 0,
1240 0,
1241 0,
1242 0,
1243 0
1244 },
1245 { /* sizes */
1246 0,
1247 0,
1248 0,
1249 0,
1250 0,
1251 0,
1252 0,
1253 0,
1254 },
1255 };
1256
1257
1258 /* Global virtual arrays & hash table for external strings as well as
1259 for the tags table and global tables for file descriptors, and
1260 dense numbers. */
1261
1262 static varray_t file_desc = INIT_VARRAY (efdr_t);
1263 static varray_t dense_num = INIT_VARRAY (DNR);
1264 static varray_t tag_strings = INIT_VARRAY (char);
1265 static varray_t ext_strings = INIT_VARRAY (char);
1266 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1267
1268 static shash_t *orig_str_hash[SHASH_SIZE];
1269 static shash_t *ext_str_hash [SHASH_SIZE];
1270 static shash_t *tag_hash [SHASH_SIZE];
1271
1272 /* Static types for int and void. Also, remember the last function's
1273 type (which is set up when we encounter the declaration for the
1274 function, and used when the end block for the function is emitted. */
1275
1276 static type_info_t int_type_info;
1277 static type_info_t void_type_info;
1278 static type_info_t last_func_type_info;
1279 static EXTR *last_func_eptr;
1280
1281
1282 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1283 really should use bt_Void, but this causes the current ecoff GDB to
1284 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1285 2.0) doesn't understand it, even though the compiler generates it.
1286 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1287 suite, but for now go with what works. */
1288
1289 static bt_t map_coff_types[ (int)T_MAX ] = {
1290 bt_Nil, /* T_NULL */
1291 bt_Nil, /* T_ARG */
1292 bt_Char, /* T_CHAR */
1293 bt_Short, /* T_SHORT */
1294 bt_Int, /* T_INT */
1295 bt_Long, /* T_LONG */
1296 bt_Float, /* T_FLOAT */
1297 bt_Double, /* T_DOUBLE */
1298 bt_Struct, /* T_STRUCT */
1299 bt_Union, /* T_UNION */
1300 bt_Enum, /* T_ENUM */
1301 bt_Enum, /* T_MOE */
1302 bt_UChar, /* T_UCHAR */
1303 bt_UShort, /* T_USHORT */
1304 bt_UInt, /* T_UINT */
1305 bt_ULong /* T_ULONG */
1306 };
1307
1308 /* Convert COFF storage class to ECOFF storage class. */
1309 static sc_t map_coff_storage[ (int)C_MAX ] = {
1310 sc_Nil, /* 0: C_NULL */
1311 sc_Abs, /* 1: C_AUTO auto var */
1312 sc_Undefined, /* 2: C_EXT external */
1313 sc_Data, /* 3: C_STAT static */
1314 sc_Register, /* 4: C_REG register */
1315 sc_Undefined, /* 5: C_EXTDEF ??? */
1316 sc_Text, /* 6: C_LABEL label */
1317 sc_Text, /* 7: C_ULABEL user label */
1318 sc_Info, /* 8: C_MOS member of struct */
1319 sc_Abs, /* 9: C_ARG argument */
1320 sc_Info, /* 10: C_STRTAG struct tag */
1321 sc_Info, /* 11: C_MOU member of union */
1322 sc_Info, /* 12: C_UNTAG union tag */
1323 sc_Info, /* 13: C_TPDEF typedef */
1324 sc_Data, /* 14: C_USTATIC ??? */
1325 sc_Info, /* 15: C_ENTAG enum tag */
1326 sc_Info, /* 16: C_MOE member of enum */
1327 sc_Register, /* 17: C_REGPARM register parameter */
1328 sc_Bits, /* 18; C_FIELD bitfield */
1329 sc_Nil, /* 19 */
1330 sc_Nil, /* 20 */
1331 sc_Nil, /* 21 */
1332 sc_Nil, /* 22 */
1333 sc_Nil, /* 23 */
1334 sc_Nil, /* 24 */
1335 sc_Nil, /* 25 */
1336 sc_Nil, /* 26 */
1337 sc_Nil, /* 27 */
1338 sc_Nil, /* 28 */
1339 sc_Nil, /* 29 */
1340 sc_Nil, /* 30 */
1341 sc_Nil, /* 31 */
1342 sc_Nil, /* 32 */
1343 sc_Nil, /* 33 */
1344 sc_Nil, /* 34 */
1345 sc_Nil, /* 35 */
1346 sc_Nil, /* 36 */
1347 sc_Nil, /* 37 */
1348 sc_Nil, /* 38 */
1349 sc_Nil, /* 39 */
1350 sc_Nil, /* 40 */
1351 sc_Nil, /* 41 */
1352 sc_Nil, /* 42 */
1353 sc_Nil, /* 43 */
1354 sc_Nil, /* 44 */
1355 sc_Nil, /* 45 */
1356 sc_Nil, /* 46 */
1357 sc_Nil, /* 47 */
1358 sc_Nil, /* 48 */
1359 sc_Nil, /* 49 */
1360 sc_Nil, /* 50 */
1361 sc_Nil, /* 51 */
1362 sc_Nil, /* 52 */
1363 sc_Nil, /* 53 */
1364 sc_Nil, /* 54 */
1365 sc_Nil, /* 55 */
1366 sc_Nil, /* 56 */
1367 sc_Nil, /* 57 */
1368 sc_Nil, /* 58 */
1369 sc_Nil, /* 59 */
1370 sc_Nil, /* 60 */
1371 sc_Nil, /* 61 */
1372 sc_Nil, /* 62 */
1373 sc_Nil, /* 63 */
1374 sc_Nil, /* 64 */
1375 sc_Nil, /* 65 */
1376 sc_Nil, /* 66 */
1377 sc_Nil, /* 67 */
1378 sc_Nil, /* 68 */
1379 sc_Nil, /* 69 */
1380 sc_Nil, /* 70 */
1381 sc_Nil, /* 71 */
1382 sc_Nil, /* 72 */
1383 sc_Nil, /* 73 */
1384 sc_Nil, /* 74 */
1385 sc_Nil, /* 75 */
1386 sc_Nil, /* 76 */
1387 sc_Nil, /* 77 */
1388 sc_Nil, /* 78 */
1389 sc_Nil, /* 79 */
1390 sc_Nil, /* 80 */
1391 sc_Nil, /* 81 */
1392 sc_Nil, /* 82 */
1393 sc_Nil, /* 83 */
1394 sc_Nil, /* 84 */
1395 sc_Nil, /* 85 */
1396 sc_Nil, /* 86 */
1397 sc_Nil, /* 87 */
1398 sc_Nil, /* 88 */
1399 sc_Nil, /* 89 */
1400 sc_Nil, /* 90 */
1401 sc_Nil, /* 91 */
1402 sc_Nil, /* 92 */
1403 sc_Nil, /* 93 */
1404 sc_Nil, /* 94 */
1405 sc_Nil, /* 95 */
1406 sc_Nil, /* 96 */
1407 sc_Nil, /* 97 */
1408 sc_Nil, /* 98 */
1409 sc_Nil, /* 99 */
1410 sc_Text, /* 100: C_BLOCK block start/end */
1411 sc_Text, /* 101: C_FCN function start/end */
1412 sc_Info, /* 102: C_EOS end of struct/union/enum */
1413 sc_Nil, /* 103: C_FILE file start */
1414 sc_Nil, /* 104: C_LINE line number */
1415 sc_Nil, /* 105: C_ALIAS combined type info */
1416 sc_Nil, /* 106: C_HIDDEN ??? */
1417 };
1418
1419 /* Convert COFF storage class to ECOFF symbol type. */
1420 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1421 st_Nil, /* 0: C_NULL */
1422 st_Local, /* 1: C_AUTO auto var */
1423 st_Global, /* 2: C_EXT external */
1424 st_Static, /* 3: C_STAT static */
1425 st_Local, /* 4: C_REG register */
1426 st_Global, /* 5: C_EXTDEF ??? */
1427 st_Label, /* 6: C_LABEL label */
1428 st_Label, /* 7: C_ULABEL user label */
1429 st_Member, /* 8: C_MOS member of struct */
1430 st_Param, /* 9: C_ARG argument */
1431 st_Block, /* 10: C_STRTAG struct tag */
1432 st_Member, /* 11: C_MOU member of union */
1433 st_Block, /* 12: C_UNTAG union tag */
1434 st_Typedef, /* 13: C_TPDEF typedef */
1435 st_Static, /* 14: C_USTATIC ??? */
1436 st_Block, /* 15: C_ENTAG enum tag */
1437 st_Member, /* 16: C_MOE member of enum */
1438 st_Param, /* 17: C_REGPARM register parameter */
1439 st_Member, /* 18; C_FIELD bitfield */
1440 st_Nil, /* 19 */
1441 st_Nil, /* 20 */
1442 st_Nil, /* 21 */
1443 st_Nil, /* 22 */
1444 st_Nil, /* 23 */
1445 st_Nil, /* 24 */
1446 st_Nil, /* 25 */
1447 st_Nil, /* 26 */
1448 st_Nil, /* 27 */
1449 st_Nil, /* 28 */
1450 st_Nil, /* 29 */
1451 st_Nil, /* 30 */
1452 st_Nil, /* 31 */
1453 st_Nil, /* 32 */
1454 st_Nil, /* 33 */
1455 st_Nil, /* 34 */
1456 st_Nil, /* 35 */
1457 st_Nil, /* 36 */
1458 st_Nil, /* 37 */
1459 st_Nil, /* 38 */
1460 st_Nil, /* 39 */
1461 st_Nil, /* 40 */
1462 st_Nil, /* 41 */
1463 st_Nil, /* 42 */
1464 st_Nil, /* 43 */
1465 st_Nil, /* 44 */
1466 st_Nil, /* 45 */
1467 st_Nil, /* 46 */
1468 st_Nil, /* 47 */
1469 st_Nil, /* 48 */
1470 st_Nil, /* 49 */
1471 st_Nil, /* 50 */
1472 st_Nil, /* 51 */
1473 st_Nil, /* 52 */
1474 st_Nil, /* 53 */
1475 st_Nil, /* 54 */
1476 st_Nil, /* 55 */
1477 st_Nil, /* 56 */
1478 st_Nil, /* 57 */
1479 st_Nil, /* 58 */
1480 st_Nil, /* 59 */
1481 st_Nil, /* 60 */
1482 st_Nil, /* 61 */
1483 st_Nil, /* 62 */
1484 st_Nil, /* 63 */
1485 st_Nil, /* 64 */
1486 st_Nil, /* 65 */
1487 st_Nil, /* 66 */
1488 st_Nil, /* 67 */
1489 st_Nil, /* 68 */
1490 st_Nil, /* 69 */
1491 st_Nil, /* 70 */
1492 st_Nil, /* 71 */
1493 st_Nil, /* 72 */
1494 st_Nil, /* 73 */
1495 st_Nil, /* 74 */
1496 st_Nil, /* 75 */
1497 st_Nil, /* 76 */
1498 st_Nil, /* 77 */
1499 st_Nil, /* 78 */
1500 st_Nil, /* 79 */
1501 st_Nil, /* 80 */
1502 st_Nil, /* 81 */
1503 st_Nil, /* 82 */
1504 st_Nil, /* 83 */
1505 st_Nil, /* 84 */
1506 st_Nil, /* 85 */
1507 st_Nil, /* 86 */
1508 st_Nil, /* 87 */
1509 st_Nil, /* 88 */
1510 st_Nil, /* 89 */
1511 st_Nil, /* 90 */
1512 st_Nil, /* 91 */
1513 st_Nil, /* 92 */
1514 st_Nil, /* 93 */
1515 st_Nil, /* 94 */
1516 st_Nil, /* 95 */
1517 st_Nil, /* 96 */
1518 st_Nil, /* 97 */
1519 st_Nil, /* 98 */
1520 st_Nil, /* 99 */
1521 st_Block, /* 100: C_BLOCK block start/end */
1522 st_Proc, /* 101: C_FCN function start/end */
1523 st_End, /* 102: C_EOS end of struct/union/enum */
1524 st_File, /* 103: C_FILE file start */
1525 st_Nil, /* 104: C_LINE line number */
1526 st_Nil, /* 105: C_ALIAS combined type info */
1527 st_Nil, /* 106: C_HIDDEN ??? */
1528 };
1529
1530 /* Map COFF derived types to ECOFF type qualifiers. */
1531 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1532 tq_Nil, /* 0: DT_NON no more qualifiers */
1533 tq_Ptr, /* 1: DT_PTR pointer */
1534 tq_Proc, /* 2: DT_FCN function */
1535 tq_Array, /* 3: DT_ARY array */
1536 };
1537
1538
1539 /* Keep track of different sized allocation requests. */
1540 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1541
1542 \f
1543 /* Pointers and such to the original symbol table that is read in. */
1544 static struct filehdr orig_file_header; /* global object file header */
1545
1546 static HDRR orig_sym_hdr; /* symbolic header on input */
1547 static char *orig_linenum; /* line numbers */
1548 static DNR *orig_dense; /* dense numbers */
1549 static PDR *orig_procs; /* procedures */
1550 static SYMR *orig_local_syms; /* local symbols */
1551 static OPTR *orig_opt_syms; /* optimization symbols */
1552 static AUXU *orig_aux_syms; /* auxiliary symbols */
1553 static char *orig_local_strs; /* local strings */
1554 static char *orig_ext_strs; /* external strings */
1555 static FDR *orig_files; /* file descriptors */
1556 static symint_t *orig_rfds; /* relative file desc's */
1557 static EXTR *orig_ext_syms; /* external symbols */
1558
1559 /* Macros to convert an index into a given object within the original
1560 symbol table. */
1561 #define CHECK(num,max,str) \
1562 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1563
1564 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1565 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1566 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1567 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1568 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1569 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1570 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1571 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1572 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1573 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1574 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1575
1576 /* Various other statics. */
1577 static HDRR symbolic_header; /* symbolic header */
1578 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1579 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1580 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1581 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1582 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1583 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1584 static long file_offset = 0; /* current file offset */
1585 static long max_file_offset = 0; /* maximum file offset */
1586 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1587 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1588 static char *progname = (char *) 0; /* program name for errors */
1589 static const char *input_name = "stdin"; /* name of input file */
1590 static char *object_name = (char *) 0; /* tmp. name of object file */
1591 static char *obj_in_name = (char *) 0; /* name of input object file */
1592 static char *cur_line_start = (char *) 0; /* current line read in */
1593 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1594 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1595 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1596 static long line_number = 0; /* current input line number */
1597 static int debug = 0; /* trace functions */
1598 static int version = 0; /* print version # */
1599 static int had_errors = 0; /* != 0 if errors were found */
1600 static int rename_output = 0; /* != 0 if rename output file*/
1601 static int delete_input = 0; /* != 0 if delete input after done */
1602 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1603
1604
1605 /* Pseudo symbol to use when putting stabs into the symbol table. */
1606 #ifndef STABS_SYMBOL
1607 #define STABS_SYMBOL "@stabs"
1608 #endif
1609
1610 static char stabs_symbol[] = STABS_SYMBOL;
1611
1612 \f
1613 /* Forward reference for functions. See the definition for more details. */
1614
1615 #ifndef STATIC
1616 #define STATIC static
1617 #endif
1618
1619 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1620
1621 STATIC shash_t *hash_string __proto((const char *,
1622 Ptrdiff_t,
1623 shash_t **,
1624 symint_t *));
1625
1626 STATIC symint_t add_string __proto((varray_t *,
1627 shash_t **,
1628 const char *,
1629 const char *,
1630 shash_t **));
1631
1632 STATIC symint_t add_local_symbol
1633 __proto((const char *,
1634 const char *,
1635 st_t,
1636 sc_t,
1637 symint_t,
1638 symint_t));
1639
1640 STATIC symint_t add_ext_symbol __proto((const char *,
1641 const char *,
1642 st_t,
1643 sc_t,
1644 long,
1645 symint_t,
1646 int));
1647
1648 STATIC symint_t add_aux_sym_symint
1649 __proto((symint_t));
1650
1651 STATIC symint_t add_aux_sym_rndx
1652 __proto((int, symint_t));
1653
1654 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1655 hash_state_t,
1656 thash_t **));
1657
1658 STATIC tag_t * get_tag __proto((const char *,
1659 const char *,
1660 symint_t,
1661 bt_t));
1662
1663 STATIC void add_unknown_tag __proto((tag_t *));
1664
1665 STATIC void add_procedure __proto((const char *,
1666 const char *));
1667
1668 STATIC void add_file __proto((const char *,
1669 const char *));
1670
1671 STATIC void add_bytes __proto((varray_t *,
1672 char *,
1673 Size_t));
1674
1675 STATIC void add_varray_page __proto((varray_t *));
1676
1677 STATIC void update_headers __proto((void));
1678
1679 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1680 STATIC void write_object __proto((void));
1681 STATIC const char *st_to_string __proto((st_t));
1682 STATIC const char *sc_to_string __proto((sc_t));
1683 STATIC char *read_line __proto((void));
1684 STATIC void parse_input __proto((void));
1685 STATIC void mark_stabs __proto((const char *));
1686 STATIC void parse_begin __proto((const char *));
1687 STATIC void parse_bend __proto((const char *));
1688 STATIC void parse_def __proto((const char *));
1689 STATIC void parse_end __proto((const char *));
1690 STATIC void parse_ent __proto((const char *));
1691 STATIC void parse_file __proto((const char *));
1692 STATIC void parse_stabs_common
1693 __proto((const char *, const char *, const char *));
1694 STATIC void parse_stabs __proto((const char *));
1695 STATIC void parse_stabn __proto((const char *));
1696 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1697 STATIC void copy_object __proto((void));
1698
1699 STATIC void catch_signal __proto((int)) ATTRIBUTE_NORETURN;
1700 STATIC page_t *allocate_page __proto((void));
1701
1702 STATIC page_t *allocate_multiple_pages
1703 __proto((Size_t));
1704
1705 STATIC void free_multiple_pages
1706 __proto((page_t *, Size_t));
1707
1708 #ifndef MALLOC_CHECK
1709 STATIC page_t *allocate_cluster
1710 __proto((Size_t));
1711 #endif
1712
1713 STATIC forward_t *allocate_forward __proto((void));
1714 STATIC scope_t *allocate_scope __proto((void));
1715 STATIC shash_t *allocate_shash __proto((void));
1716 STATIC tag_t *allocate_tag __proto((void));
1717 STATIC thash_t *allocate_thash __proto((void));
1718 STATIC thead_t *allocate_thead __proto((void));
1719 STATIC vlinks_t *allocate_vlinks __proto((void));
1720
1721 STATIC void free_forward __proto((forward_t *));
1722 STATIC void free_scope __proto((scope_t *));
1723 STATIC void free_tag __proto((tag_t *));
1724 STATIC void free_thead __proto((thead_t *));
1725
1726 STATIC char *local_index __proto((const char *, int));
1727 STATIC char *local_rindex __proto((const char *, int));
1728
1729 extern char *mktemp __proto((char *));
1730 extern long strtol __proto((const char *, char **, int));
1731
1732 extern char *optarg;
1733 extern int optind;
1734 extern int opterr;
1735 \f
1736 /* List of assembler pseudo ops and beginning sequences that need
1737 special actions. Someday, this should be a hash table, and such,
1738 but for now a linear list of names and calls to memcmp will
1739 do...... */
1740
1741 typedef struct _pseudo_ops {
1742 const char *name; /* pseudo-op in ascii */
1743 int len; /* length of name to compare */
1744 void (*func) __proto((const char *)); /* function to handle line */
1745 } pseudo_ops_t;
1746
1747 static pseudo_ops_t pseudo_ops[] = {
1748 { "#.def", sizeof("#.def")-1, parse_def },
1749 { "#.begin", sizeof("#.begin")-1, parse_begin },
1750 { "#.bend", sizeof("#.bend")-1, parse_bend },
1751 { ".end", sizeof(".end")-1, parse_end },
1752 { ".ent", sizeof(".ent")-1, parse_ent },
1753 { ".file", sizeof(".file")-1, parse_file },
1754 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1755 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1756 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1757 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1758 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1759 };
1760
1761 \f
1762 /* Add a page to a varray object. */
1763
1764 STATIC void
1765 add_varray_page (vp)
1766 varray_t *vp; /* varray to add page to */
1767 {
1768 vlinks_t *new_links = allocate_vlinks ();
1769
1770 #ifdef MALLOC_CHECK
1771 if (vp->object_size > 1)
1772 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1773 else
1774 #endif
1775 new_links->datum = allocate_page ();
1776
1777 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1778 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1779
1780 new_links->start_index = vp->num_allocated;
1781 vp->objects_last_page = 0;
1782
1783 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1784 vp->first = vp->last = new_links;
1785 else
1786 { /* 2nd or greater allocation */
1787 new_links->prev = vp->last;
1788 vp->last->next = new_links;
1789 vp->last = new_links;
1790 }
1791 }
1792
1793 \f
1794 /* Compute hash code (from tree.c) */
1795
1796 #define HASHBITS 30
1797
1798 STATIC shash_t *
1799 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1800 const char *text; /* ptr to text to hash */
1801 Ptrdiff_t hash_len; /* length of the text */
1802 shash_t **hash_tbl; /* hash table */
1803 symint_t *ret_hash_index; /* ptr to store hash index */
1804 {
1805 register unsigned long hi;
1806 register Ptrdiff_t i;
1807 register shash_t *ptr;
1808 register int first_ch = *text;
1809
1810 hi = hash_len;
1811 for (i = 0; i < hash_len; i++)
1812 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1813
1814 hi &= (1 << HASHBITS) - 1;
1815 hi %= SHASH_SIZE;
1816
1817 if (ret_hash_index != (symint_t *) 0)
1818 *ret_hash_index = hi;
1819
1820 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1821 if ((symint_t) hash_len == ptr->len
1822 && first_ch == ptr->string[0]
1823 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1824 break;
1825
1826 return ptr;
1827 }
1828
1829 \f
1830 /* Add a string (and null pad) to one of the string tables. A
1831 consequence of hashing strings, is that we don't let strings
1832 cross page boundaries. The extra nulls will be ignored. */
1833
1834 STATIC symint_t
1835 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1836 varray_t *vp; /* string virtual array */
1837 shash_t **hash_tbl; /* ptr to hash table */
1838 const char *start; /* 1st byte in string */
1839 const char *end_p1; /* 1st byte after string */
1840 shash_t **ret_hash; /* return hash pointer */
1841 {
1842 register Ptrdiff_t len = end_p1 - start;
1843 register shash_t *hash_ptr;
1844 symint_t hi;
1845
1846 if (len >= (Ptrdiff_t) PAGE_USIZE)
1847 fatal ("String too big (%ld bytes)", (long) len);
1848
1849 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1850 if (hash_ptr == (shash_t *) 0)
1851 {
1852 register char *p;
1853
1854 if (vp->objects_last_page + len >= (long) PAGE_USIZE)
1855 {
1856 vp->num_allocated
1857 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1858 add_varray_page (vp);
1859 }
1860
1861 hash_ptr = allocate_shash ();
1862 hash_ptr->next = hash_tbl[hi];
1863 hash_tbl[hi] = hash_ptr;
1864
1865 hash_ptr->len = len;
1866 hash_ptr->indx = vp->num_allocated;
1867 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1868
1869 vp->objects_last_page += len+1;
1870 vp->num_allocated += len+1;
1871
1872 while (len-- > 0)
1873 *p++ = *start++;
1874
1875 *p = '\0';
1876 }
1877
1878 if (ret_hash != (shash_t **) 0)
1879 *ret_hash = hash_ptr;
1880
1881 return hash_ptr->indx;
1882 }
1883
1884 \f
1885 /* Add a local symbol. */
1886
1887 STATIC symint_t
1888 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1889 const char *str_start; /* first byte in string */
1890 const char *str_end_p1; /* first byte after string */
1891 st_t type; /* symbol type */
1892 sc_t storage; /* storage class */
1893 symint_t value; /* value of symbol */
1894 symint_t indx; /* index to local/aux. syms */
1895 {
1896 register symint_t ret;
1897 register SYMR *psym;
1898 register scope_t *pscope;
1899 register thead_t *ptag_head;
1900 register tag_t *ptag;
1901 register tag_t *ptag_next;
1902 register varray_t *vp = &cur_file_ptr->symbols;
1903 register int scope_delta = 0;
1904 shash_t *hash_ptr = (shash_t *) 0;
1905
1906 if (vp->objects_last_page == vp->objects_per_page)
1907 add_varray_page (vp);
1908
1909 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1910
1911 psym->value = value;
1912 psym->st = (unsigned) type;
1913 psym->sc = (unsigned) storage;
1914 psym->index = indx;
1915 psym->iss = (str_start == (const char *) 0)
1916 ? 0
1917 : add_string (&cur_file_ptr->strings,
1918 &cur_file_ptr->shash_head[0],
1919 str_start,
1920 str_end_p1,
1921 &hash_ptr);
1922
1923 ret = vp->num_allocated++;
1924
1925 if (MIPS_IS_STAB(psym))
1926 return ret;
1927
1928 /* Save the symbol within the hash table if this is a static
1929 item, and it has a name. */
1930 if (hash_ptr != (shash_t *) 0
1931 && (type == st_Global || type == st_Static || type == st_Label
1932 || type == st_Proc || type == st_StaticProc))
1933 hash_ptr->sym_ptr = psym;
1934
1935 /* push or pop a scope if appropriate. */
1936 switch (type)
1937 {
1938 default:
1939 break;
1940
1941 case st_File: /* beginning of file */
1942 case st_Proc: /* procedure */
1943 case st_StaticProc: /* static procedure */
1944 case st_Block: /* begin scope */
1945 pscope = allocate_scope ();
1946 pscope->prev = cur_file_ptr->cur_scope;
1947 pscope->lsym = psym;
1948 pscope->lnumber = ret;
1949 pscope->type = type;
1950 cur_file_ptr->cur_scope = pscope;
1951
1952 if (type != st_File)
1953 scope_delta = 1;
1954
1955 /* For every block type except file, struct, union, or
1956 enumeration blocks, push a level on the tag stack. We omit
1957 file types, so that tags can span file boundaries. */
1958 if (type != st_File && storage != sc_Info)
1959 {
1960 ptag_head = allocate_thead ();
1961 ptag_head->first_tag = 0;
1962 ptag_head->prev = cur_tag_head;
1963 cur_tag_head = ptag_head;
1964 }
1965 break;
1966
1967 case st_End:
1968 pscope = cur_file_ptr->cur_scope;
1969 if (pscope == (scope_t *)0)
1970 error ("internal error, too many st_End's");
1971
1972 else
1973 {
1974 st_t begin_type = (st_t) pscope->lsym->st;
1975
1976 if (begin_type != st_File)
1977 scope_delta = -1;
1978
1979 /* Except for file, structure, union, or enumeration end
1980 blocks remove all tags created within this scope. */
1981 if (begin_type != st_File && storage != sc_Info)
1982 {
1983 ptag_head = cur_tag_head;
1984 cur_tag_head = ptag_head->prev;
1985
1986 for (ptag = ptag_head->first_tag;
1987 ptag != (tag_t *) 0;
1988 ptag = ptag_next)
1989 {
1990 if (ptag->forward_ref != (forward_t *) 0)
1991 add_unknown_tag (ptag);
1992
1993 ptag_next = ptag->same_block;
1994 ptag->hash_ptr->tag_ptr = ptag->same_name;
1995 free_tag (ptag);
1996 }
1997
1998 free_thead (ptag_head);
1999 }
2000
2001 cur_file_ptr->cur_scope = pscope->prev;
2002 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2003
2004 if (storage != sc_Info)
2005 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2006
2007 if (begin_type == st_File || begin_type == st_Block)
2008 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2009
2010 /* Functions push two or more aux words as follows:
2011 1st word: index+1 of the end symbol
2012 2nd word: type of the function (plus any aux words needed).
2013 Also, tie the external pointer back to the function begin symbol. */
2014 else
2015 {
2016 symint_t type;
2017 pscope->lsym->index = add_aux_sym_symint (ret+1);
2018 type = add_aux_sym_tir (&last_func_type_info,
2019 hash_no,
2020 &cur_file_ptr->thash_head[0]);
2021 if (last_func_eptr)
2022 {
2023 last_func_eptr->ifd = cur_file_ptr->file_index;
2024
2025 /* The index for an external st_Proc symbol is the index
2026 of the st_Proc symbol in the local symbol table. */
2027 last_func_eptr->asym.index = psym->index;
2028 }
2029 }
2030
2031 free_scope (pscope);
2032 }
2033 }
2034
2035 cur_file_ptr->nested_scopes += scope_delta;
2036
2037 if (debug && type != st_File
2038 && (debug > 2 || type == st_Block || type == st_End
2039 || type == st_Proc || type == st_StaticProc))
2040 {
2041 const char *sc_str = sc_to_string (storage);
2042 const char *st_str = st_to_string (type);
2043 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2044
2045 fprintf (stderr,
2046 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2047 value, depth, sc_str);
2048
2049 if (str_start && str_end_p1 - str_start > 0)
2050 fprintf (stderr, " st= %-11s name= %.*s\n",
2051 st_str, (int) (str_end_p1 - str_start), str_start);
2052 else
2053 {
2054 Size_t len = strlen (st_str);
2055 fprintf (stderr, " st= %.*s\n", (int) (len-1), st_str);
2056 }
2057 }
2058
2059 return ret;
2060 }
2061
2062 \f
2063 /* Add an external symbol. */
2064
2065 STATIC symint_t
2066 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2067 const char *str_start; /* first byte in string */
2068 const char *str_end_p1; /* first byte after string */
2069 st_t type; /* symbol type */
2070 sc_t storage; /* storage class */
2071 long value; /* value of symbol */
2072 symint_t indx; /* index to local/aux. syms */
2073 int ifd; /* file index */
2074 {
2075 register EXTR *psym;
2076 register varray_t *vp = &ext_symbols;
2077 shash_t *hash_ptr = (shash_t *) 0;
2078
2079 if (debug > 1)
2080 {
2081 const char *sc_str = sc_to_string (storage);
2082 const char *st_str = st_to_string (type);
2083
2084 fprintf (stderr,
2085 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2086 value, ifd, sc_str);
2087
2088 if (str_start && str_end_p1 - str_start > 0)
2089 fprintf (stderr, " st= %-11s name= %.*s\n",
2090 st_str, (int) (str_end_p1 - str_start), str_start);
2091 else
2092 fprintf (stderr, " st= %s\n", st_str);
2093 }
2094
2095 if (vp->objects_last_page == vp->objects_per_page)
2096 add_varray_page (vp);
2097
2098 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2099
2100 psym->ifd = ifd;
2101 psym->asym.value = value;
2102 psym->asym.st = (unsigned) type;
2103 psym->asym.sc = (unsigned) storage;
2104 psym->asym.index = indx;
2105 psym->asym.iss = (str_start == (const char *) 0)
2106 ? 0
2107 : add_string (&ext_strings,
2108 &ext_str_hash[0],
2109 str_start,
2110 str_end_p1,
2111 &hash_ptr);
2112
2113 hash_ptr->esym_ptr = psym;
2114 return vp->num_allocated++;
2115 }
2116
2117 \f
2118 /* Add an auxiliary symbol (passing a symint). */
2119
2120 STATIC symint_t
2121 add_aux_sym_symint (aux_word)
2122 symint_t aux_word; /* auxiliary information word */
2123 {
2124 register AUXU *aux_ptr;
2125 register efdr_t *file_ptr = cur_file_ptr;
2126 register varray_t *vp = &file_ptr->aux_syms;
2127
2128 if (vp->objects_last_page == vp->objects_per_page)
2129 add_varray_page (vp);
2130
2131 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2132 aux_ptr->isym = aux_word;
2133
2134 return vp->num_allocated++;
2135 }
2136
2137
2138 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2139
2140 STATIC symint_t
2141 add_aux_sym_rndx (file_index, sym_index)
2142 int file_index;
2143 symint_t sym_index;
2144 {
2145 register AUXU *aux_ptr;
2146 register efdr_t *file_ptr = cur_file_ptr;
2147 register varray_t *vp = &file_ptr->aux_syms;
2148
2149 if (vp->objects_last_page == vp->objects_per_page)
2150 add_varray_page (vp);
2151
2152 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2153 aux_ptr->rndx.rfd = file_index;
2154 aux_ptr->rndx.index = sym_index;
2155
2156 return vp->num_allocated++;
2157 }
2158
2159 \f
2160 /* Add an auxiliary symbol (passing the basic type and possibly
2161 type qualifiers). */
2162
2163 STATIC symint_t
2164 add_aux_sym_tir (t, state, hash_tbl)
2165 type_info_t *t; /* current type information */
2166 hash_state_t state; /* whether to hash type or not */
2167 thash_t **hash_tbl; /* pointer to hash table to use */
2168 {
2169 register AUXU *aux_ptr;
2170 register efdr_t *file_ptr = cur_file_ptr;
2171 register varray_t *vp = &file_ptr->aux_syms;
2172 static AUXU init_aux;
2173 symint_t ret;
2174 int i;
2175 AUXU aux;
2176
2177 aux = init_aux;
2178 aux.ti.bt = (int) t->basic_type;
2179 aux.ti.continued = 0;
2180 aux.ti.fBitfield = t->bitfield;
2181
2182 aux.ti.tq0 = (int) t->type_qualifiers[0];
2183 aux.ti.tq1 = (int) t->type_qualifiers[1];
2184 aux.ti.tq2 = (int) t->type_qualifiers[2];
2185 aux.ti.tq3 = (int) t->type_qualifiers[3];
2186 aux.ti.tq4 = (int) t->type_qualifiers[4];
2187 aux.ti.tq5 = (int) t->type_qualifiers[5];
2188
2189
2190 /* For anything that adds additional information, we must not hash,
2191 so check here, and reset our state. */
2192
2193 if (state != hash_no
2194 && (t->type_qualifiers[0] == tq_Array
2195 || t->type_qualifiers[1] == tq_Array
2196 || t->type_qualifiers[2] == tq_Array
2197 || t->type_qualifiers[3] == tq_Array
2198 || t->type_qualifiers[4] == tq_Array
2199 || t->type_qualifiers[5] == tq_Array
2200 || t->basic_type == bt_Struct
2201 || t->basic_type == bt_Union
2202 || t->basic_type == bt_Enum
2203 || t->bitfield
2204 || t->num_dims > 0))
2205 state = hash_no;
2206
2207 /* See if we can hash this type, and save some space, but some types
2208 can't be hashed (because they contain arrays or continuations),
2209 and others can be put into the hash list, but cannot use existing
2210 types because other aux entries precede this one. */
2211
2212 if (state != hash_no)
2213 {
2214 register thash_t *hash_ptr;
2215 register symint_t hi;
2216
2217 hi = aux.isym & ((1 << HASHBITS) - 1);
2218 hi %= THASH_SIZE;
2219
2220 for (hash_ptr = hash_tbl[hi];
2221 hash_ptr != (thash_t *) 0;
2222 hash_ptr = hash_ptr->next)
2223 {
2224 if (aux.isym == hash_ptr->type.isym)
2225 break;
2226 }
2227
2228 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2229 return hash_ptr->indx;
2230
2231 if (hash_ptr == (thash_t *) 0)
2232 {
2233 hash_ptr = allocate_thash ();
2234 hash_ptr->next = hash_tbl[hi];
2235 hash_ptr->type = aux;
2236 hash_ptr->indx = vp->num_allocated;
2237 hash_tbl[hi] = hash_ptr;
2238 }
2239 }
2240
2241 /* Everything is set up, add the aux symbol. */
2242 if (vp->objects_last_page == vp->objects_per_page)
2243 add_varray_page (vp);
2244
2245 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2246 *aux_ptr = aux;
2247
2248 ret = vp->num_allocated++;
2249
2250 /* Add bitfield length if it exists.
2251
2252 NOTE: Mips documentation claims bitfield goes at the end of the
2253 AUX record, but the DECstation compiler emits it here.
2254 (This would only make a difference for enum bitfields.)
2255
2256 Also note: We use the last size given since gcc may emit 2
2257 for an enum bitfield. */
2258
2259 if (t->bitfield)
2260 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2261
2262
2263 /* Add tag information if needed. Structure, union, and enum
2264 references add 2 aux symbols: a [file index, symbol index]
2265 pointer to the structure type, and the current file index. */
2266
2267 if (t->basic_type == bt_Struct
2268 || t->basic_type == bt_Union
2269 || t->basic_type == bt_Enum)
2270 {
2271 register symint_t file_index = t->tag_ptr->ifd;
2272 register symint_t sym_index = t->tag_ptr->indx;
2273
2274 if (t->unknown_tag)
2275 {
2276 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2277 (void) add_aux_sym_symint ((symint_t)-1);
2278 }
2279 else if (sym_index != indexNil)
2280 {
2281 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2282 (void) add_aux_sym_symint (file_index);
2283 }
2284 else
2285 {
2286 register forward_t *forward_ref = allocate_forward ();
2287
2288 forward_ref->type_ptr = aux_ptr;
2289 forward_ref->next = t->tag_ptr->forward_ref;
2290 t->tag_ptr->forward_ref = forward_ref;
2291
2292 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2293 forward_ref->index_ptr
2294 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2295
2296 (void) add_aux_sym_symint (file_index);
2297 forward_ref->ifd_ptr
2298 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2299 }
2300 }
2301
2302 /* Add information about array bounds if they exist. */
2303 for (i = 0; i < t->num_dims; i++)
2304 {
2305 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2306 cur_file_ptr->int_type);
2307
2308 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2309 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2310 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2311 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2312 ? 0
2313 : (t->sizes[i] * 8) / t->dimensions[i]);
2314 };
2315
2316 /* NOTE: Mips documentation claims that the bitfield width goes here.
2317 But it needs to be emitted earlier. */
2318
2319 return ret;
2320 }
2321
2322 \f
2323 /* Add a tag to the tag table (unless it already exists). */
2324
2325 STATIC tag_t *
2326 get_tag (tag_start, tag_end_p1, indx, basic_type)
2327 const char *tag_start; /* 1st byte of tag name */
2328 const char *tag_end_p1; /* 1st byte after tag name */
2329 symint_t indx; /* index of tag start block */
2330 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2331 {
2332 shash_t *hash_ptr;
2333 tag_t *tag_ptr;
2334 hash_ptr = hash_string (tag_start,
2335 tag_end_p1 - tag_start,
2336 &tag_hash[0],
2337 (symint_t *) 0);
2338
2339 if (hash_ptr != (shash_t *) 0
2340 && hash_ptr->tag_ptr != (tag_t *) 0)
2341 {
2342 tag_ptr = hash_ptr->tag_ptr;
2343 if (indx != indexNil)
2344 {
2345 tag_ptr->basic_type = basic_type;
2346 tag_ptr->ifd = cur_file_ptr->file_index;
2347 tag_ptr->indx = indx;
2348 }
2349 return tag_ptr;
2350 }
2351
2352 (void) add_string (&tag_strings,
2353 &tag_hash[0],
2354 tag_start,
2355 tag_end_p1,
2356 &hash_ptr);
2357
2358 tag_ptr = allocate_tag ();
2359 tag_ptr->forward_ref = (forward_t *) 0;
2360 tag_ptr->hash_ptr = hash_ptr;
2361 tag_ptr->same_name = hash_ptr->tag_ptr;
2362 tag_ptr->basic_type = basic_type;
2363 tag_ptr->indx = indx;
2364 tag_ptr->ifd = (indx == indexNil
2365 ? (symint_t) -1 : cur_file_ptr->file_index);
2366 tag_ptr->same_block = cur_tag_head->first_tag;
2367
2368 cur_tag_head->first_tag = tag_ptr;
2369 hash_ptr->tag_ptr = tag_ptr;
2370
2371 return tag_ptr;
2372 }
2373
2374 \f
2375 /* Add an unknown {struct, union, enum} tag. */
2376
2377 STATIC void
2378 add_unknown_tag (ptag)
2379 tag_t *ptag; /* pointer to tag information */
2380 {
2381 shash_t *hash_ptr = ptag->hash_ptr;
2382 char *name_start = hash_ptr->string;
2383 char *name_end_p1 = name_start + hash_ptr->len;
2384 forward_t *f_next = ptag->forward_ref;
2385 forward_t *f_cur;
2386 int sym_index;
2387 int file_index = cur_file_ptr->file_index;
2388
2389 if (debug > 1)
2390 {
2391 const char *agg_type = "{unknown aggregate type}";
2392 switch (ptag->basic_type)
2393 {
2394 case bt_Struct: agg_type = "struct"; break;
2395 case bt_Union: agg_type = "union"; break;
2396 case bt_Enum: agg_type = "enum"; break;
2397 default: break;
2398 }
2399
2400 fprintf (stderr, "unknown %s %.*s found\n",
2401 agg_type, (int) hash_ptr->len, name_start);
2402 }
2403
2404 sym_index = add_local_symbol (name_start,
2405 name_end_p1,
2406 st_Block,
2407 sc_Info,
2408 (symint_t) 0,
2409 (symint_t) 0);
2410
2411 (void) add_local_symbol (name_start,
2412 name_end_p1,
2413 st_End,
2414 sc_Info,
2415 (symint_t) 0,
2416 (symint_t) 0);
2417
2418 while (f_next != (forward_t *) 0)
2419 {
2420 f_cur = f_next;
2421 f_next = f_next->next;
2422
2423 f_cur->ifd_ptr->isym = file_index;
2424 f_cur->index_ptr->rndx.index = sym_index;
2425
2426 free_forward (f_cur);
2427 }
2428
2429 return;
2430 }
2431
2432 \f
2433 /* Add a procedure to the current file's list of procedures, and record
2434 this is the current procedure. If the assembler created a PDR for
2435 this procedure, use that to initialize the current PDR. */
2436
2437 STATIC void
2438 add_procedure (func_start, func_end_p1)
2439 const char *func_start; /* 1st byte of func name */
2440 const char *func_end_p1; /* 1st byte after func name */
2441 {
2442 register PDR *new_proc_ptr;
2443 register efdr_t *file_ptr = cur_file_ptr;
2444 register varray_t *vp = &file_ptr->procs;
2445 register symint_t value = 0;
2446 register st_t proc_type = st_Proc;
2447 register shash_t *shash_ptr = hash_string (func_start,
2448 func_end_p1 - func_start,
2449 &orig_str_hash[0],
2450 (symint_t *) 0);
2451
2452 if (debug)
2453 fputc ('\n', stderr);
2454
2455 if (vp->objects_last_page == vp->objects_per_page)
2456 add_varray_page (vp);
2457
2458 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2459
2460 vp->num_allocated++;
2461
2462
2463 /* Did the assembler create this procedure? If so, get the PDR information. */
2464 cur_oproc_ptr = (PDR *) 0;
2465 if (shash_ptr != (shash_t *) 0)
2466 {
2467 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2468 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2469
2470 if (old_proc_ptr != (PDR *) 0
2471 && sym_ptr != (SYMR *) 0
2472 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2473 {
2474 cur_oproc_begin = sym_ptr;
2475 cur_oproc_end = shash_ptr->end_ptr;
2476 value = sym_ptr->value;
2477
2478 cur_oproc_ptr = old_proc_ptr;
2479 proc_type = (st_t)sym_ptr->st;
2480 *new_proc_ptr = *old_proc_ptr; /* initialize */
2481 }
2482 }
2483
2484 if (cur_oproc_ptr == (PDR *) 0)
2485 error ("Did not find a PDR block for %.*s",
2486 (int) (func_end_p1 - func_start), func_start);
2487
2488 /* Determine the start of symbols. */
2489 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2490
2491 /* Push the start of the function. */
2492 (void) add_local_symbol (func_start, func_end_p1,
2493 proc_type, sc_Text,
2494 value,
2495 (symint_t) 0);
2496 }
2497
2498 \f
2499 /* Add a new filename, and set up all of the file relative
2500 virtual arrays (strings, symbols, aux syms, etc.). Record
2501 where the current file structure lives. */
2502
2503 STATIC void
2504 add_file (file_start, file_end_p1)
2505 const char *file_start; /* first byte in string */
2506 const char *file_end_p1; /* first byte after string */
2507 {
2508 static char zero_bytes[2] = { '\0', '\0' };
2509
2510 register Ptrdiff_t len = file_end_p1 - file_start;
2511 register int first_ch = *file_start;
2512 register efdr_t *file_ptr;
2513
2514 if (debug)
2515 fprintf (stderr, "\tfile\t%.*s\n", (int) len, file_start);
2516
2517 /* See if the file has already been created. */
2518 for (file_ptr = first_file;
2519 file_ptr != (efdr_t *) 0;
2520 file_ptr = file_ptr->next_file)
2521 {
2522 if (first_ch == file_ptr->name[0]
2523 && file_ptr->name[len] == '\0'
2524 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2525 {
2526 cur_file_ptr = file_ptr;
2527 break;
2528 }
2529 }
2530
2531 /* If this is a new file, create it. */
2532 if (file_ptr == (efdr_t *) 0)
2533 {
2534 if (file_desc.objects_last_page == file_desc.objects_per_page)
2535 add_varray_page (&file_desc);
2536
2537 file_ptr = cur_file_ptr
2538 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2539 *file_ptr = init_file;
2540
2541 file_ptr->file_index = file_desc.num_allocated++;
2542
2543 /* Allocate the string hash table. */
2544 file_ptr->shash_head = (shash_t **) allocate_page ();
2545
2546 /* Make sure 0 byte in string table is null */
2547 add_string (&file_ptr->strings,
2548 &file_ptr->shash_head[0],
2549 &zero_bytes[0],
2550 &zero_bytes[0],
2551 (shash_t **) 0);
2552
2553 if (file_end_p1 - file_start > (long) PAGE_USIZE-2)
2554 fatal ("Filename goes over one page boundary.");
2555
2556 /* Push the start of the filename. We assume that the filename
2557 will be stored at string offset 1. */
2558 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2559 (symint_t) 0, (symint_t) 0);
2560 file_ptr->fdr.rss = 1;
2561 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2562 file_ptr->name_len = file_end_p1 - file_start;
2563
2564 /* Update the linked list of file descriptors. */
2565 *last_file_ptr = file_ptr;
2566 last_file_ptr = &file_ptr->next_file;
2567
2568 /* Add void & int types to the file (void should be first to catch
2569 errant 0's within the index fields). */
2570 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2571 hash_yes,
2572 &cur_file_ptr->thash_head[0]);
2573
2574 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2575 hash_yes,
2576 &cur_file_ptr->thash_head[0]);
2577 }
2578 }
2579
2580 \f
2581 /* Add a stream of random bytes to a varray. */
2582
2583 STATIC void
2584 add_bytes (vp, input_ptr, nitems)
2585 varray_t *vp; /* virtual array to add too */
2586 char *input_ptr; /* start of the bytes */
2587 Size_t nitems; /* # items to move */
2588 {
2589 register Size_t move_items;
2590 register Size_t move_bytes;
2591 register char *ptr;
2592
2593 while (nitems > 0)
2594 {
2595 if (vp->objects_last_page >= vp->objects_per_page)
2596 add_varray_page (vp);
2597
2598 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2599 move_items = vp->objects_per_page - vp->objects_last_page;
2600 if (move_items > nitems)
2601 move_items = nitems;
2602
2603 move_bytes = move_items * vp->object_size;
2604 nitems -= move_items;
2605
2606 if (move_bytes >= 32)
2607 {
2608 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2609 input_ptr += move_bytes;
2610 }
2611 else
2612 {
2613 while (move_bytes-- > 0)
2614 *ptr++ = *input_ptr++;
2615 }
2616 }
2617 }
2618
2619 \f
2620 /* Convert storage class to string. */
2621
2622 STATIC const char *
2623 sc_to_string(storage_class)
2624 sc_t storage_class;
2625 {
2626 switch(storage_class)
2627 {
2628 case sc_Nil: return "Nil,";
2629 case sc_Text: return "Text,";
2630 case sc_Data: return "Data,";
2631 case sc_Bss: return "Bss,";
2632 case sc_Register: return "Register,";
2633 case sc_Abs: return "Abs,";
2634 case sc_Undefined: return "Undefined,";
2635 case sc_CdbLocal: return "CdbLocal,";
2636 case sc_Bits: return "Bits,";
2637 case sc_CdbSystem: return "CdbSystem,";
2638 case sc_RegImage: return "RegImage,";
2639 case sc_Info: return "Info,";
2640 case sc_UserStruct: return "UserStruct,";
2641 case sc_SData: return "SData,";
2642 case sc_SBss: return "SBss,";
2643 case sc_RData: return "RData,";
2644 case sc_Var: return "Var,";
2645 case sc_Common: return "Common,";
2646 case sc_SCommon: return "SCommon,";
2647 case sc_VarRegister: return "VarRegister,";
2648 case sc_Variant: return "Variant,";
2649 case sc_SUndefined: return "SUndefined,";
2650 case sc_Init: return "Init,";
2651 case sc_Max: return "Max,";
2652 }
2653
2654 return "???,";
2655 }
2656
2657 \f
2658 /* Convert symbol type to string. */
2659
2660 STATIC const char *
2661 st_to_string(symbol_type)
2662 st_t symbol_type;
2663 {
2664 switch(symbol_type)
2665 {
2666 case st_Nil: return "Nil,";
2667 case st_Global: return "Global,";
2668 case st_Static: return "Static,";
2669 case st_Param: return "Param,";
2670 case st_Local: return "Local,";
2671 case st_Label: return "Label,";
2672 case st_Proc: return "Proc,";
2673 case st_Block: return "Block,";
2674 case st_End: return "End,";
2675 case st_Member: return "Member,";
2676 case st_Typedef: return "Typedef,";
2677 case st_File: return "File,";
2678 case st_RegReloc: return "RegReloc,";
2679 case st_Forward: return "Forward,";
2680 case st_StaticProc: return "StaticProc,";
2681 case st_Constant: return "Constant,";
2682 case st_Str: return "String,";
2683 case st_Number: return "Number,";
2684 case st_Expr: return "Expr,";
2685 case st_Type: return "Type,";
2686 case st_Max: return "Max,";
2687 }
2688
2689 return "???,";
2690 }
2691
2692 \f
2693 /* Read a line from standard input, and return the start of the buffer
2694 (which is grows if the line is too big). We split lines at the
2695 semi-colon, and return each logical line independently. */
2696
2697 STATIC char *
2698 read_line __proto((void))
2699 {
2700 static int line_split_p = 0;
2701 register int string_p = 0;
2702 register int comment_p = 0;
2703 register int ch;
2704 register char *ptr;
2705
2706 if (cur_line_start == (char *) 0)
2707 { /* allocate initial page */
2708 cur_line_start = (char *) allocate_page ();
2709 cur_line_alloc = PAGE_SIZE;
2710 }
2711
2712 if (!line_split_p)
2713 line_number++;
2714
2715 line_split_p = 0;
2716 cur_line_nbytes = 0;
2717
2718 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2719 {
2720 if (++cur_line_nbytes >= cur_line_alloc-1)
2721 {
2722 register int num_pages = cur_line_alloc / PAGE_SIZE;
2723 register char *old_buffer = cur_line_start;
2724
2725 cur_line_alloc += PAGE_SIZE;
2726 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2727 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2728
2729 ptr = cur_line_start + cur_line_nbytes - 1;
2730 }
2731
2732 if (ch == '\n')
2733 {
2734 *ptr++ = '\n';
2735 *ptr = '\0';
2736 cur_line_ptr = cur_line_start;
2737 return cur_line_ptr;
2738 }
2739
2740 else if (ch == '\0')
2741 error ("Null character found in input");
2742
2743 else if (!comment_p)
2744 {
2745 if (ch == '"')
2746 string_p = !string_p;
2747
2748 else if (ch == '#')
2749 comment_p++;
2750
2751 else if (ch == ';' && !string_p)
2752 {
2753 line_split_p = 1;
2754 *ptr++ = '\n';
2755 *ptr = '\0';
2756 cur_line_ptr = cur_line_start;
2757 return cur_line_ptr;
2758 }
2759 }
2760 }
2761
2762 if (ferror (stdin))
2763 pfatal_with_name (input_name);
2764
2765 cur_line_ptr = (char *) 0;
2766 return (char *) 0;
2767 }
2768
2769 \f
2770 /* Parse #.begin directives which have a label as the first argument
2771 which gives the location of the start of the block. */
2772
2773 STATIC void
2774 parse_begin (start)
2775 const char *start; /* start of directive */
2776 {
2777 const char *end_p1; /* end of label */
2778 int ch;
2779 shash_t *hash_ptr; /* hash pointer to lookup label */
2780
2781 if (cur_file_ptr == (efdr_t *) 0)
2782 {
2783 error ("#.begin directive without a preceding .file directive");
2784 return;
2785 }
2786
2787 if (cur_proc_ptr == (PDR *) 0)
2788 {
2789 error ("#.begin directive without a preceding .ent directive");
2790 return;
2791 }
2792
2793 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2794 ;
2795
2796 hash_ptr = hash_string (start,
2797 end_p1 - start,
2798 &orig_str_hash[0],
2799 (symint_t *) 0);
2800
2801 if (hash_ptr == (shash_t *) 0)
2802 {
2803 error ("Label %.*s not found for #.begin",
2804 (int) (end_p1 - start), start);
2805 return;
2806 }
2807
2808 if (cur_oproc_begin == (SYMR *) 0)
2809 {
2810 error ("Procedure table %.*s not found for #.begin",
2811 (int) (end_p1 - start), start);
2812 return;
2813 }
2814
2815 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2816 st_Block, sc_Text,
2817 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2818 (symint_t) 0);
2819 }
2820
2821 \f
2822 /* Parse #.bend directives which have a label as the first argument
2823 which gives the location of the end of the block. */
2824
2825 STATIC void
2826 parse_bend (start)
2827 const char *start; /* start of directive */
2828 {
2829 const char *end_p1; /* end of label */
2830 int ch;
2831 shash_t *hash_ptr; /* hash pointer to lookup label */
2832
2833 if (cur_file_ptr == (efdr_t *) 0)
2834 {
2835 error ("#.begin directive without a preceding .file directive");
2836 return;
2837 }
2838
2839 if (cur_proc_ptr == (PDR *) 0)
2840 {
2841 error ("#.bend directive without a preceding .ent directive");
2842 return;
2843 }
2844
2845 for (end_p1 = start; (ch = *end_p1) != '\0' && !ISSPACE (ch); end_p1++)
2846 ;
2847
2848 hash_ptr = hash_string (start,
2849 end_p1 - start,
2850 &orig_str_hash[0],
2851 (symint_t *) 0);
2852
2853 if (hash_ptr == (shash_t *) 0)
2854 {
2855 error ("Label %.*s not found for #.bend", (int) (end_p1 - start), start);
2856 return;
2857 }
2858
2859 if (cur_oproc_begin == (SYMR *) 0)
2860 {
2861 error ("Procedure table %.*s not found for #.bend",
2862 (int) (end_p1 - start), start);
2863 return;
2864 }
2865
2866 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2867 st_End, sc_Text,
2868 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2869 (symint_t) 0);
2870 }
2871
2872 \f
2873 /* Parse #.def directives, which are contain standard COFF subdirectives
2874 to describe the debugging format. These subdirectives include:
2875
2876 .scl specify storage class
2877 .val specify a value
2878 .endef specify end of COFF directives
2879 .type specify the type
2880 .size specify the size of an array
2881 .dim specify an array dimension
2882 .tag specify a tag for a struct, union, or enum. */
2883
2884 STATIC void
2885 parse_def (name_start)
2886 const char *name_start; /* start of directive */
2887 {
2888 const char *dir_start; /* start of current directive*/
2889 const char *dir_end_p1; /* end+1 of current directive*/
2890 const char *arg_start; /* start of current argument */
2891 const char *arg_end_p1; /* end+1 of current argument */
2892 const char *name_end_p1; /* end+1 of label */
2893 const char *tag_start = (const char *) 0; /* start of tag name */
2894 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2895 sc_t storage_class = sc_Nil;
2896 st_t symbol_type = st_Nil;
2897 type_info_t t;
2898 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2899 int is_function = 0; /* != 0 if function */
2900 symint_t value = 0;
2901 symint_t indx = cur_file_ptr->void_type;
2902 int error_line = 0;
2903 symint_t arg_number;
2904 symint_t temp_array[ N_TQ ];
2905 int arg_was_number;
2906 int ch, i;
2907 Ptrdiff_t len;
2908
2909 static int inside_enumeration = 0; /* is this an enumeration? */
2910
2911
2912 /* Initialize the type information. */
2913 t = type_info_init;
2914
2915
2916 /* Search for the end of the name being defined. */
2917 /* Allow spaces and such in names for G++ templates, which produce stabs
2918 that look like:
2919
2920 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2921
2922 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2923 ;
2924
2925 if (ch == '\0')
2926 {
2927 error_line = __LINE__;
2928 saber_stop ();
2929 goto bomb_out;
2930 }
2931
2932 /* Parse the remaining subdirectives now. */
2933 dir_start = name_end_p1+1;
2934 for (;;)
2935 {
2936 while ((ch = *dir_start) == ' ' || ch == '\t')
2937 ++dir_start;
2938
2939 if (ch != '.')
2940 {
2941 error_line = __LINE__;
2942 saber_stop ();
2943 goto bomb_out;
2944 }
2945
2946 /* Are we done? */
2947 if (dir_start[1] == 'e'
2948 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2949 break;
2950
2951 /* Pick up the subdirective now */
2952 for (dir_end_p1 = dir_start+1;
2953 (ch = *dir_end_p1) != ' ' && ch != '\t';
2954 dir_end_p1++)
2955 {
2956 if (ch == '\0' || ISSPACE (ch))
2957 {
2958 error_line = __LINE__;
2959 saber_stop ();
2960 goto bomb_out;
2961 }
2962 }
2963
2964 /* Pick up the subdirective argument now. */
2965 arg_was_number = arg_number = 0;
2966 arg_end_p1 = (const char *) 0;
2967 arg_start = dir_end_p1+1;
2968 ch = *arg_start;
2969 while (ch == ' ' || ch == '\t')
2970 ch = *++arg_start;
2971
2972 if (ISDIGIT (ch) || ch == '-' || ch == '+')
2973 {
2974 int ch2;
2975 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2976 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2977 arg_was_number++;
2978 }
2979
2980 else if (ch == '\0' || ISSPACE (ch))
2981 {
2982 error_line = __LINE__;
2983 saber_stop ();
2984 goto bomb_out;
2985 }
2986
2987 if (!arg_was_number)
2988 {
2989 /* Allow spaces and such in names for G++ templates. */
2990 for (arg_end_p1 = arg_start+1;
2991 (ch = *arg_end_p1) != ';' && ch != '\0';
2992 arg_end_p1++)
2993 ;
2994
2995 if (ch == '\0')
2996 {
2997 error_line = __LINE__;
2998 saber_stop ();
2999 goto bomb_out;
3000 }
3001 }
3002
3003 /* Classify the directives now. */
3004 len = dir_end_p1 - dir_start;
3005 switch (dir_start[1])
3006 {
3007 default:
3008 error_line = __LINE__;
3009 saber_stop ();
3010 goto bomb_out;
3011
3012 case 'd':
3013 if (len == sizeof (".dim")-1
3014 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3015 && arg_was_number)
3016 {
3017 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3018
3019 *t_ptr = arg_number;
3020 while (*arg_end_p1 == ',' && arg_was_number)
3021 {
3022 arg_start = arg_end_p1+1;
3023 ch = *arg_start;
3024 while (ch == ' ' || ch == '\t')
3025 ch = *++arg_start;
3026
3027 arg_was_number = 0;
3028 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3029 {
3030 int ch2;
3031 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3032 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3033 arg_was_number++;
3034
3035 if (t_ptr == &temp_array[0])
3036 {
3037 error_line = __LINE__;
3038 saber_stop ();
3039 goto bomb_out;
3040 }
3041
3042 *--t_ptr = arg_number;
3043 }
3044 }
3045
3046 /* Reverse order of dimensions. */
3047 while (t_ptr <= &temp_array[ N_TQ-1 ])
3048 {
3049 if (t.num_dims >= N_TQ-1)
3050 {
3051 error_line = __LINE__;
3052 saber_stop ();
3053 goto bomb_out;
3054 }
3055
3056 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3057 }
3058 break;
3059 }
3060 else
3061 {
3062 error_line = __LINE__;
3063 saber_stop ();
3064 goto bomb_out;
3065 }
3066
3067
3068 case 's':
3069 if (len == sizeof (".scl")-1
3070 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3071 && arg_was_number
3072 && arg_number < ((symint_t) C_MAX))
3073 {
3074 /* If the symbol is a static or external, we have
3075 already gotten the appropriate type and class, so
3076 make sure we don't override those values. This is
3077 needed because there are some type and classes that
3078 are not in COFF, such as short data, etc. */
3079 if (symbol_type == st_Nil)
3080 {
3081 symbol_type = map_coff_sym_type[arg_number];
3082 storage_class = map_coff_storage [arg_number];
3083 }
3084 break;
3085 }
3086
3087 else if (len == sizeof (".size")-1
3088 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3089 && arg_was_number)
3090 {
3091 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3092
3093 *t_ptr = arg_number;
3094 while (*arg_end_p1 == ',' && arg_was_number)
3095 {
3096 arg_start = arg_end_p1+1;
3097 ch = *arg_start;
3098 while (ch == ' ' || ch == '\t')
3099 ch = *++arg_start;
3100
3101 arg_was_number = 0;
3102 if (ISDIGIT (ch) || ch == '-' || ch == '+')
3103 {
3104 int ch2;
3105 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3106 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3107 arg_was_number++;
3108
3109 if (t_ptr == &temp_array[0])
3110 {
3111 error_line = __LINE__;
3112 saber_stop ();
3113 goto bomb_out;
3114 }
3115
3116 *--t_ptr = arg_number;
3117 }
3118 }
3119
3120 /* Reverse order of sizes. */
3121 while (t_ptr <= &temp_array[ N_TQ-1 ])
3122 {
3123 if (t.num_sizes >= N_TQ-1)
3124 {
3125 error_line = __LINE__;
3126 saber_stop ();
3127 goto bomb_out;
3128 }
3129
3130 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3131 }
3132 break;
3133 }
3134
3135 else
3136 {
3137 error_line = __LINE__;
3138 saber_stop ();
3139 goto bomb_out;
3140 }
3141
3142
3143 case 't':
3144 if (len == sizeof (".type")-1
3145 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3146 && arg_was_number)
3147 {
3148 tq_t *tq_ptr = &t.type_qualifiers[0];
3149
3150 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3151 t.basic_type = map_coff_types [(int)t.orig_type];
3152 for (i = N_TQ-1; i >= 0; i--)
3153 {
3154 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3155 & N_TMASK);
3156
3157 if (dt != (int)DT_NON)
3158 *tq_ptr++ = map_coff_derived_type [dt];
3159 }
3160
3161 /* If this is a function, ignore it, so that we don't get
3162 two entries (one from the .ent, and one for the .def
3163 that precedes it). Save the type information so that
3164 the end block can properly add it after the begin block
3165 index. For MIPS knows what reason, we must strip off
3166 the function type at this point. */
3167 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3168 {
3169 is_function = 1;
3170 tq_ptr[-1] = tq_Nil;
3171 }
3172
3173 break;
3174 }
3175
3176 else if (len == sizeof (".tag")-1
3177 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3178 {
3179 tag_start = arg_start;
3180 tag_end_p1 = arg_end_p1;
3181 break;
3182 }
3183
3184 else
3185 {
3186 error_line = __LINE__;
3187 saber_stop ();
3188 goto bomb_out;
3189 }
3190
3191
3192 case 'v':
3193 if (len == sizeof (".val")-1
3194 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3195 {
3196 if (arg_was_number)
3197 value = arg_number;
3198
3199 /* If the value is not an integer value, it must be the
3200 name of a static or global item. Look up the name in
3201 the original symbol table to pick up the storage
3202 class, symbol type, etc. */
3203 else
3204 {
3205 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3206 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3207
3208 ext_hash_ptr = hash_string (arg_start,
3209 arg_end_p1 - arg_start,
3210 &ext_str_hash[0],
3211 (symint_t *) 0);
3212
3213 if (ext_hash_ptr != (shash_t *) 0
3214 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3215 eptr = ext_hash_ptr->esym_ptr;
3216
3217 orig_hash_ptr = hash_string (arg_start,
3218 arg_end_p1 - arg_start,
3219 &orig_str_hash[0],
3220 (symint_t *) 0);
3221
3222 if ((orig_hash_ptr == (shash_t *) 0
3223 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3224 && eptr == (EXTR *) 0)
3225 {
3226 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3227 (int) (arg_end_p1 - arg_start),
3228 arg_start);
3229 value = 0;
3230 }
3231 else
3232 {
3233 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3234 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3235 ? orig_hash_ptr->sym_ptr
3236 : &eptr->asym;
3237
3238 symbol_type = (st_t) ptr->st;
3239 storage_class = (sc_t) ptr->sc;
3240 value = ptr->value;
3241 }
3242 }
3243 break;
3244 }
3245 else
3246 {
3247 error_line = __LINE__;
3248 saber_stop ();
3249 goto bomb_out;
3250 }
3251 }
3252
3253 /* Set up to find next directive. */
3254 dir_start = arg_end_p1 + 1;
3255 }
3256
3257
3258 if (storage_class == sc_Bits)
3259 {
3260 t.bitfield = 1;
3261 t.extra_sizes = 1;
3262 }
3263 else
3264 t.extra_sizes = 0;
3265
3266 if (t.num_dims > 0)
3267 {
3268 int num_real_sizes = t.num_sizes - t.extra_sizes;
3269 int diff = t.num_dims - num_real_sizes;
3270 int i = t.num_dims - 1;
3271 int j;
3272
3273 if (num_real_sizes != 1 || diff < 0)
3274 {
3275 error_line = __LINE__;
3276 saber_stop ();
3277 goto bomb_out;
3278 }
3279
3280 /* If this is an array, make sure the same number of dimensions
3281 and sizes were passed, creating extra sizes for multiply
3282 dimensioned arrays if not passed. */
3283
3284 if (diff)
3285 {
3286 for (j = ARRAY_SIZE (t.sizes) - 1; j >= 0; j--)
3287 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3288
3289 t.num_sizes = i + 1;
3290 for ( i--; i >= 0; i-- )
3291 {
3292 if (t.dimensions[ i+1 ])
3293 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3294 else
3295 t.sizes[ i ] = t.sizes[ i+1 ];
3296 }
3297 }
3298 }
3299
3300 /* Except for enumeration members & begin/ending of scopes, put the
3301 type word in the aux. symbol table. */
3302
3303 if (symbol_type == st_Block || symbol_type == st_End)
3304 indx = 0;
3305
3306 else if (inside_enumeration)
3307 indx = cur_file_ptr->void_type;
3308
3309 else
3310 {
3311 if (t.basic_type == bt_Struct
3312 || t.basic_type == bt_Union
3313 || t.basic_type == bt_Enum)
3314 {
3315 if (tag_start == (char *) 0)
3316 {
3317 error ("No tag specified for %.*s",
3318 (int) (name_end_p1 - name_start),
3319 name_start);
3320 return;
3321 }
3322
3323 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3324 t.basic_type);
3325 }
3326
3327 if (is_function)
3328 {
3329 last_func_type_info = t;
3330 last_func_eptr = eptr;
3331 return;
3332 }
3333
3334 indx = add_aux_sym_tir (&t,
3335 hash_yes,
3336 &cur_file_ptr->thash_head[0]);
3337 }
3338
3339
3340 /* If this is an external or static symbol, update the appropriate
3341 external symbol. */
3342
3343 if (eptr != (EXTR *) 0
3344 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3345 {
3346 eptr->ifd = cur_file_ptr->file_index;
3347 eptr->asym.index = indx;
3348 }
3349
3350
3351 /* Do any last minute adjustments that are necessary. */
3352 switch (symbol_type)
3353 {
3354 default:
3355 break;
3356
3357
3358 /* For the beginning of structs, unions, and enumerations, the
3359 size info needs to be passed in the value field. */
3360
3361 case st_Block:
3362 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3363 {
3364 error_line = __LINE__;
3365 saber_stop ();
3366 goto bomb_out;
3367 }
3368
3369 else
3370 value = t.sizes[0];
3371
3372 inside_enumeration = (t.orig_type == T_ENUM);
3373 break;
3374
3375
3376 /* For the end of structs, unions, and enumerations, omit the
3377 name which is always ".eos". This needs to be done last, so
3378 that any error reporting above gives the correct name. */
3379
3380 case st_End:
3381 name_start = name_end_p1 = (const char *) 0;
3382 value = inside_enumeration = 0;
3383 break;
3384
3385
3386 /* Members of structures and unions that aren't bitfields, need
3387 to adjust the value from a byte offset to a bit offset.
3388 Members of enumerations do not have the value adjusted, and
3389 can be distinguished by indx == indexNil. For enumerations,
3390 update the maximum enumeration value. */
3391
3392 case st_Member:
3393 if (!t.bitfield && !inside_enumeration)
3394 value *= 8;
3395
3396 break;
3397 }
3398
3399
3400 /* Add the symbol, except for global symbols outside of functions,
3401 for which the external symbol table is fine enough. */
3402
3403 if (eptr == (EXTR *) 0
3404 || eptr->asym.st == (int)st_Nil
3405 || cur_proc_ptr != (PDR *) 0)
3406 {
3407 symint_t isym = add_local_symbol (name_start, name_end_p1,
3408 symbol_type, storage_class,
3409 value,
3410 indx);
3411
3412 /* deal with struct, union, and enum tags. */
3413 if (symbol_type == st_Block)
3414 {
3415 /* Create or update the tag information. */
3416 tag_t *tag_ptr = get_tag (name_start,
3417 name_end_p1,
3418 isym,
3419 t.basic_type);
3420
3421 /* If there are any forward references, fill in the appropriate
3422 file and symbol indexes. */
3423
3424 symint_t file_index = cur_file_ptr->file_index;
3425 forward_t *f_next = tag_ptr->forward_ref;
3426 forward_t *f_cur;
3427
3428 while (f_next != (forward_t *) 0)
3429 {
3430 f_cur = f_next;
3431 f_next = f_next->next;
3432
3433 f_cur->ifd_ptr->isym = file_index;
3434 f_cur->index_ptr->rndx.index = isym;
3435
3436 free_forward (f_cur);
3437 }
3438
3439 tag_ptr->forward_ref = (forward_t *) 0;
3440 }
3441 }
3442
3443 /* Normal return */
3444 return;
3445
3446 /* Error return, issue message. */
3447 bomb_out:
3448 if (error_line)
3449 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3450 else
3451 error ("compiler error, badly formed #.def");
3452
3453 return;
3454 }
3455
3456 \f
3457 /* Parse .end directives. */
3458
3459 STATIC void
3460 parse_end (start)
3461 const char *start; /* start of directive */
3462 {
3463 register const char *start_func, *end_func_p1;
3464 register int ch;
3465 register symint_t value;
3466 register FDR *orig_fdr;
3467
3468 if (cur_file_ptr == (efdr_t *) 0)
3469 {
3470 error (".end directive without a preceding .file directive");
3471 return;
3472 }
3473
3474 if (cur_proc_ptr == (PDR *) 0)
3475 {
3476 error (".end directive without a preceding .ent directive");
3477 return;
3478 }
3479
3480 /* Get the function name, skipping whitespace. */
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 (".end 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
3495 /* Get the value field for creating the end from the original object
3496 file (which we find by locating the procedure start, and using the
3497 pointer to the end+1 block and backing up. The index points to a
3498 two word aux. symbol, whose first word is the index of the end
3499 symbol, and the second word is the type of the function return
3500 value. */
3501
3502 orig_fdr = cur_file_ptr->orig_fdr;
3503 value = 0;
3504 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3505 value = cur_oproc_end->value;
3506
3507 else
3508 error ("Cannot find .end block for %.*s",
3509 (int) (end_func_p1 - start_func), start_func);
3510
3511 (void) add_local_symbol (start_func, end_func_p1,
3512 st_End, sc_Text,
3513 value,
3514 (symint_t) 0);
3515
3516 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3517 }
3518
3519 \f
3520 /* Parse .ent directives. */
3521
3522 STATIC void
3523 parse_ent (start)
3524 const char *start; /* start of directive */
3525 {
3526 register const char *start_func, *end_func_p1;
3527 register int ch;
3528
3529 if (cur_file_ptr == (efdr_t *) 0)
3530 {
3531 error (".ent directive without a preceding .file directive");
3532 return;
3533 }
3534
3535 if (cur_proc_ptr != (PDR *) 0)
3536 {
3537 error ("second .ent directive found before .end directive");
3538 return;
3539 }
3540
3541 for (start_func = start; ISSPACE ((unsigned char)*start_func); start_func++)
3542 ;
3543
3544 ch = *start_func;
3545 if (!IS_ASM_IDENT (ch))
3546 {
3547 error (".ent directive has no name");
3548 return;
3549 }
3550
3551 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3552 ;
3553
3554 (void) add_procedure (start_func, end_func_p1);
3555 }
3556
3557 \f
3558 /* Parse .file directives. */
3559
3560 STATIC void
3561 parse_file (start)
3562 const char *start; /* start of directive */
3563 {
3564 char *p;
3565 register char *start_name, *end_name_p1;
3566
3567 (void) strtol (start, &p, 0);
3568 if (start == p
3569 || (start_name = local_index (p, '"')) == (char *) 0
3570 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3571 {
3572 error ("Invalid .file directive");
3573 return;
3574 }
3575
3576 if (cur_proc_ptr != (PDR *) 0)
3577 {
3578 error ("No way to handle .file within .ent/.end section");
3579 return;
3580 }
3581
3582 add_file (start_name, end_name_p1);
3583 }
3584
3585 \f
3586 /* Make sure the @stabs symbol is emitted. */
3587
3588 static void
3589 mark_stabs (start)
3590 const char *start ATTRIBUTE_UNUSED; /* Start of directive (ignored) */
3591 {
3592 if (!stabs_seen)
3593 {
3594 /* Add a dummy @stabs symbol. */
3595 stabs_seen = 1;
3596 (void) add_local_symbol (stabs_symbol,
3597 stabs_symbol + sizeof (stabs_symbol),
3598 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3599
3600 }
3601 }
3602
3603 \f
3604 /* Parse .stabs directives.
3605
3606 .stabs directives have five fields:
3607 "string" a string, encoding the type information.
3608 code a numeric code, defined in <stab.h>
3609 0 a zero
3610 0 a zero or line number
3611 value a numeric value or an address.
3612
3613 If the value is relocatable, we transform this into:
3614 iss points as an index into string space
3615 value value from lookup of the name
3616 st st from lookup of the name
3617 sc sc from lookup of the name
3618 index code|CODE_MASK
3619
3620 If the value is not relocatable, we transform this into:
3621 iss points as an index into string space
3622 value value
3623 st st_Nil
3624 sc sc_Nil
3625 index code|CODE_MASK
3626
3627 .stabn directives have four fields (string is null):
3628 code a numeric code, defined in <stab.h>
3629 0 a zero
3630 0 a zero or a line number
3631 value a numeric value or an address. */
3632
3633 STATIC void
3634 parse_stabs_common (string_start, string_end, rest)
3635 const char *string_start; /* start of string or NULL */
3636 const char *string_end; /* end+1 of string or NULL */
3637 const char *rest; /* rest of the directive. */
3638 {
3639 efdr_t *save_file_ptr = cur_file_ptr;
3640 symint_t code;
3641 symint_t value;
3642 char *p;
3643 st_t st;
3644 sc_t sc;
3645 int ch;
3646
3647 if (stabs_seen == 0)
3648 mark_stabs ("");
3649
3650 /* Read code from stabs. */
3651 if (!ISDIGIT (*rest))
3652 {
3653 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3654 return;
3655 }
3656
3657 code = strtol (rest, &p, 0);
3658
3659 /* Line number stabs are handled differently, since they have two values,
3660 the line number and the address of the label. We use the index field
3661 (aka code) to hold the line number, and the value field to hold the
3662 address. The symbol type is st_Label, which should be different from
3663 the other stabs, so that gdb can recognize it. */
3664
3665 if (code == (int)N_SLINE)
3666 {
3667 SYMR *sym_ptr, dummy_symr;
3668 shash_t *shash_ptr;
3669
3670 /* Skip ,0, */
3671 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !ISDIGIT (p[3]))
3672 {
3673 error ("Invalid line number .stabs/.stabn directive");
3674 return;
3675 }
3676
3677 code = strtol (p+3, &p, 0);
3678 ch = *++p;
3679 if (p[-1] != ',' || ISDIGIT (ch) || !IS_ASM_IDENT (ch))
3680 {
3681 error ("Invalid line number .stabs/.stabn directive");
3682 return;
3683 }
3684
3685 dummy_symr.index = code;
3686 if (dummy_symr.index != code)
3687 {
3688 error ("Line number (%lu) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3689 code);
3690
3691 return;
3692 }
3693
3694 shash_ptr = hash_string (p,
3695 strlen (p) - 1,
3696 &orig_str_hash[0],
3697 (symint_t *) 0);
3698
3699 if (shash_ptr == (shash_t *) 0
3700 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3701 {
3702 error ("Invalid .stabs/.stabn directive, value not found");
3703 return;
3704 }
3705
3706 if ((st_t) sym_ptr->st != st_Label)
3707 {
3708 error ("Invalid line number .stabs/.stabn directive");
3709 return;
3710 }
3711
3712 st = st_Label;
3713 sc = (sc_t) sym_ptr->sc;
3714 value = sym_ptr->value;
3715 }
3716 else
3717 {
3718 /* Skip ,<num>,<num>, */
3719 if (*p++ != ',')
3720 goto failure;
3721 for (; ISDIGIT (*p); p++)
3722 ;
3723 if (*p++ != ',')
3724 goto failure;
3725 for (; ISDIGIT (*p); p++)
3726 ;
3727 if (*p++ != ',')
3728 goto failure;
3729 ch = *p;
3730 if (!IS_ASM_IDENT (ch) && ch != '-')
3731 {
3732 failure:
3733 error ("Invalid .stabs/.stabn directive, bad character");
3734 return;
3735 }
3736
3737 if (ISDIGIT (ch) || ch == '-')
3738 {
3739 st = st_Nil;
3740 sc = sc_Nil;
3741 value = strtol (p, &p, 0);
3742 if (*p != '\n')
3743 {
3744 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3745 return;
3746 }
3747 }
3748 else if (!IS_ASM_IDENT (ch))
3749 {
3750 error ("Invalid .stabs/.stabn directive, bad character");
3751 return;
3752 }
3753 else
3754 {
3755 SYMR *sym_ptr;
3756 shash_t *shash_ptr;
3757 const char *start, *end_p1;
3758
3759 start = p;
3760 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3761 {
3762 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3763 end_p1 = start + strlen(start) - 1;
3764 }
3765
3766 shash_ptr = hash_string (start,
3767 end_p1 - start,
3768 &orig_str_hash[0],
3769 (symint_t *) 0);
3770
3771 if (shash_ptr == (shash_t *) 0
3772 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3773 {
3774 shash_ptr = hash_string (start,
3775 end_p1 - start,
3776 &ext_str_hash[0],
3777 (symint_t *) 0);
3778
3779 if (shash_ptr == (shash_t *) 0
3780 || shash_ptr->esym_ptr == (EXTR *) 0)
3781 {
3782 error ("Invalid .stabs/.stabn directive, value not found");
3783 return;
3784 }
3785 else
3786 sym_ptr = &(shash_ptr->esym_ptr->asym);
3787 }
3788
3789 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3790 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3791 {
3792 sc = scNil;
3793 st = stNil;
3794 }
3795 else
3796 {
3797 sc = (sc_t) sym_ptr->sc;
3798 st = (st_t) sym_ptr->st;
3799 }
3800 value = sym_ptr->value;
3801
3802 ch = *end_p1++;
3803 if (ch != '\n')
3804 {
3805 if (((!ISDIGIT (*end_p1)) && (*end_p1 != '-'))
3806 || ((ch != '+') && (ch != '-')))
3807 {
3808 error ("Invalid .stabs/.stabn directive, badly formed value");
3809 return;
3810 }
3811 if (ch == '+')
3812 value += strtol (end_p1, &p, 0);
3813 else if (ch == '-')
3814 value -= strtol (end_p1, &p, 0);
3815
3816 if (*p != '\n')
3817 {
3818 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3819 return;
3820 }
3821 }
3822 }
3823 code = MIPS_MARK_STAB(code);
3824 }
3825
3826 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3827 /* Restore normal file type. */
3828 cur_file_ptr = save_file_ptr;
3829 }
3830
3831
3832 STATIC void
3833 parse_stabs (start)
3834 const char *start; /* start of directive */
3835 {
3836 const char *end = local_index (start+1, '"');
3837
3838 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3839 {
3840 error ("Invalid .stabs directive, no string");
3841 return;
3842 }
3843
3844 parse_stabs_common (start+1, end, end+2);
3845 }
3846
3847
3848 STATIC void
3849 parse_stabn (start)
3850 const char *start; /* start of directive */
3851 {
3852 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3853 }
3854
3855 \f
3856 /* Parse the input file, and write the lines to the output file
3857 if needed. */
3858
3859 STATIC void
3860 parse_input __proto((void))
3861 {
3862 register char *p;
3863 register Size_t i;
3864 register thead_t *ptag_head;
3865 register tag_t *ptag;
3866 register tag_t *ptag_next;
3867
3868 if (debug)
3869 fprintf (stderr, "\tinput\n");
3870
3871 /* Add a dummy scope block around the entire compilation unit for
3872 structures defined outside of blocks. */
3873 ptag_head = allocate_thead ();
3874 ptag_head->first_tag = 0;
3875 ptag_head->prev = cur_tag_head;
3876 cur_tag_head = ptag_head;
3877
3878 while ((p = read_line ()) != (char *) 0)
3879 {
3880 /* Skip leading blanks */
3881 while (ISSPACE ((unsigned char)*p))
3882 p++;
3883
3884 /* See if it's a directive we handle. If so, dispatch handler. */
3885 for (i = 0; i < ARRAY_SIZE (pseudo_ops); i++)
3886 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3887 && ISSPACE ((unsigned char)(p[pseudo_ops[i].len])))
3888 {
3889 p += pseudo_ops[i].len; /* skip to first argument */
3890 while (ISSPACE ((unsigned char)*p))
3891 p++;
3892
3893 (*pseudo_ops[i].func)( p );
3894 break;
3895 }
3896 }
3897
3898 /* Process any tags at global level. */
3899 ptag_head = cur_tag_head;
3900 cur_tag_head = ptag_head->prev;
3901
3902 for (ptag = ptag_head->first_tag;
3903 ptag != (tag_t *) 0;
3904 ptag = ptag_next)
3905 {
3906 if (ptag->forward_ref != (forward_t *) 0)
3907 add_unknown_tag (ptag);
3908
3909 ptag_next = ptag->same_block;
3910 ptag->hash_ptr->tag_ptr = ptag->same_name;
3911 free_tag (ptag);
3912 }
3913
3914 free_thead (ptag_head);
3915
3916 }
3917
3918 \f
3919 /* Update the global headers with the final offsets in preparation
3920 to write out the .T file. */
3921
3922 STATIC void
3923 update_headers __proto((void))
3924 {
3925 register symint_t i;
3926 register efdr_t *file_ptr;
3927
3928 /* Set up the symbolic header. */
3929 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3930 symbolic_header.magic = orig_sym_hdr.magic;
3931 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3932
3933 /* Set up global counts. */
3934 symbolic_header.issExtMax = ext_strings.num_allocated;
3935 symbolic_header.idnMax = dense_num.num_allocated;
3936 symbolic_header.ifdMax = file_desc.num_allocated;
3937 symbolic_header.iextMax = ext_symbols.num_allocated;
3938 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3939 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3940 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3941 symbolic_header.crfd = orig_sym_hdr.crfd;
3942
3943
3944 /* Loop through each file, figuring out how many local syms,
3945 line numbers, etc. there are. Also, put out end symbol
3946 for the filename. */
3947
3948 for (file_ptr = first_file;
3949 file_ptr != (efdr_t *) 0;
3950 file_ptr = file_ptr->next_file)
3951 {
3952 register SYMR *sym_start;
3953 register SYMR *sym;
3954 register SYMR *sym_end_p1;
3955 register FDR *fd_ptr = file_ptr->orig_fdr;
3956
3957 cur_file_ptr = file_ptr;
3958
3959 /* Copy st_Static symbols from the original local symbol table if
3960 they did not get added to the new local symbol table.
3961 This happens with stabs-in-ecoff or if the source file is
3962 compiled without debugging. */
3963 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
3964 sym_end_p1 = sym_start + fd_ptr->csym;
3965 for (sym = sym_start; sym < sym_end_p1; sym++)
3966 {
3967 if ((st_t)sym->st == st_Static)
3968 {
3969 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
3970 register Size_t len = strlen (str);
3971 register shash_t *hash_ptr;
3972
3973 /* Ignore internal labels. */
3974 if (str[0] == '$' && str[1] == 'L')
3975 continue;
3976 hash_ptr = hash_string (str,
3977 (Ptrdiff_t)len,
3978 &file_ptr->shash_head[0],
3979 (symint_t *) 0);
3980 if (hash_ptr == (shash_t *) 0)
3981 {
3982 (void) add_local_symbol (str, str + len,
3983 (st_t)sym->st, (sc_t)sym->sc,
3984 (symint_t)sym->value,
3985 (symint_t)indexNil);
3986 }
3987 }
3988 }
3989 (void) add_local_symbol ((const char *) 0, (const char *) 0,
3990 st_End, sc_Text,
3991 (symint_t) 0,
3992 (symint_t) 0);
3993
3994 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3995 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3996 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3997
3998 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3999 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4000 symbolic_header.isymMax += file_ptr->fdr.csym;
4001
4002 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4003 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4004 symbolic_header.iauxMax += file_ptr->fdr.caux;
4005
4006 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4007 file_ptr->fdr.issBase = symbolic_header.issMax;
4008 symbolic_header.issMax += file_ptr->fdr.cbSs;
4009 }
4010
4011 #ifndef ALIGN_SYMTABLE_OFFSET
4012 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4013 #endif
4014
4015 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4016 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4017 if (i > 0)
4018 {
4019 symbolic_header.cbLineOffset = file_offset;
4020 file_offset += i;
4021 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4022 }
4023
4024 i = symbolic_header.ioptMax; /* optimization symbols */
4025 if (((long) i) > 0)
4026 {
4027 symbolic_header.cbOptOffset = file_offset;
4028 file_offset += i * sizeof (OPTR);
4029 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4030 }
4031
4032 i = symbolic_header.idnMax; /* dense numbers */
4033 if (i > 0)
4034 {
4035 symbolic_header.cbDnOffset = file_offset;
4036 file_offset += i * sizeof (DNR);
4037 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4038 }
4039
4040 i = symbolic_header.ipdMax; /* procedure tables */
4041 if (i > 0)
4042 {
4043 symbolic_header.cbPdOffset = file_offset;
4044 file_offset += i * sizeof (PDR);
4045 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4046 }
4047
4048 i = symbolic_header.isymMax; /* local symbols */
4049 if (i > 0)
4050 {
4051 symbolic_header.cbSymOffset = file_offset;
4052 file_offset += i * sizeof (SYMR);
4053 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4054 }
4055
4056 i = symbolic_header.iauxMax; /* aux syms. */
4057 if (i > 0)
4058 {
4059 symbolic_header.cbAuxOffset = file_offset;
4060 file_offset += i * sizeof (TIR);
4061 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4062 }
4063
4064 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4065 if (i > 0)
4066 {
4067 symbolic_header.cbSsOffset = file_offset;
4068 file_offset += i;
4069 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4070 }
4071
4072 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4073 if (i > 0)
4074 {
4075 symbolic_header.cbSsExtOffset = file_offset;
4076 file_offset += i;
4077 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4078 }
4079
4080 i = symbolic_header.ifdMax; /* file tables */
4081 if (i > 0)
4082 {
4083 symbolic_header.cbFdOffset = file_offset;
4084 file_offset += i * sizeof (FDR);
4085 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4086 }
4087
4088 i = symbolic_header.crfd; /* relative file descriptors */
4089 if (i > 0)
4090 {
4091 symbolic_header.cbRfdOffset = file_offset;
4092 file_offset += i * sizeof (symint_t);
4093 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4094 }
4095
4096 i = symbolic_header.iextMax; /* external symbols */
4097 if (i > 0)
4098 {
4099 symbolic_header.cbExtOffset = file_offset;
4100 file_offset += i * sizeof (EXTR);
4101 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4102 }
4103 }
4104
4105 \f
4106 /* Write out a varray at a given location. */
4107
4108 STATIC void
4109 write_varray (vp, offset, str)
4110 varray_t *vp; /* virtual array */
4111 off_t offset; /* offset to write varray to */
4112 const char *str; /* string to print out when tracing */
4113 {
4114 int num_write, sys_write;
4115 vlinks_t *ptr;
4116
4117 if (vp->num_allocated == 0)
4118 return;
4119
4120 if (debug)
4121 {
4122 fputs ("\twarray\tvp = ", stderr);
4123 fprintf (stderr, HOST_PTR_PRINTF, vp);
4124 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4125 (unsigned long) offset, vp->num_allocated * vp->object_size, str);
4126 }
4127
4128 if (file_offset != offset
4129 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4130 pfatal_with_name (object_name);
4131
4132 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4133 {
4134 num_write = (ptr->next == (vlinks_t *) 0)
4135 ? vp->objects_last_page * vp->object_size
4136 : vp->objects_per_page * vp->object_size;
4137
4138 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4139 if (sys_write <= 0)
4140 pfatal_with_name (object_name);
4141
4142 else if (sys_write != num_write)
4143 fatal ("Wrote %d bytes to %s, system returned %d",
4144 num_write,
4145 object_name,
4146 sys_write);
4147
4148 file_offset += num_write;
4149 }
4150 }
4151
4152 \f
4153 /* Write out the symbol table in the object file. */
4154
4155 STATIC void
4156 write_object __proto((void))
4157 {
4158 int sys_write;
4159 efdr_t *file_ptr;
4160 off_t offset;
4161
4162 if (debug)
4163 {
4164 fputs ("\n\twrite\tvp = ", stderr);
4165 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &symbolic_header);
4166 fprintf (stderr, ", offset = %7u, size = %7lu, %s\n",
4167 0, (unsigned long) sizeof (symbolic_header), "symbolic header");
4168 }
4169
4170 sys_write = fwrite ((PTR_T) &symbolic_header,
4171 1,
4172 sizeof (symbolic_header),
4173 object_stream);
4174
4175 if (sys_write < 0)
4176 pfatal_with_name (object_name);
4177
4178 else if (sys_write != sizeof (symbolic_header))
4179 fatal ("Wrote %d bytes to %s, system returned %d",
4180 (int) sizeof (symbolic_header),
4181 object_name,
4182 sys_write);
4183
4184
4185 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4186
4187 if (symbolic_header.cbLine > 0) /* line numbers */
4188 {
4189 long sys_write;
4190
4191 if (file_offset != symbolic_header.cbLineOffset
4192 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4193 pfatal_with_name (object_name);
4194
4195 if (debug)
4196 {
4197 fputs ("\twrite\tvp = ", stderr);
4198 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_linenum);
4199 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4200 (long) symbolic_header.cbLineOffset,
4201 (long) symbolic_header.cbLine, "Line numbers");
4202 }
4203
4204 sys_write = fwrite ((PTR_T) orig_linenum,
4205 1,
4206 symbolic_header.cbLine,
4207 object_stream);
4208
4209 if (sys_write <= 0)
4210 pfatal_with_name (object_name);
4211
4212 else if (sys_write != symbolic_header.cbLine)
4213 fatal ("Wrote %ld bytes to %s, system returned %ld",
4214 (long) symbolic_header.cbLine,
4215 object_name,
4216 sys_write);
4217
4218 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4219 }
4220
4221 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4222 {
4223 long sys_write;
4224 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4225
4226 if (file_offset != symbolic_header.cbOptOffset
4227 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4228 pfatal_with_name (object_name);
4229
4230 if (debug)
4231 {
4232 fputs ("\twrite\tvp = ", stderr);
4233 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_opt_syms);
4234 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4235 (long) symbolic_header.cbOptOffset,
4236 num_write, "Optimizer symbols");
4237 }
4238
4239 sys_write = fwrite ((PTR_T) orig_opt_syms,
4240 1,
4241 num_write,
4242 object_stream);
4243
4244 if (sys_write <= 0)
4245 pfatal_with_name (object_name);
4246
4247 else if (sys_write != num_write)
4248 fatal ("Wrote %ld bytes to %s, system returned %ld",
4249 num_write,
4250 object_name,
4251 sys_write);
4252
4253 file_offset = symbolic_header.cbOptOffset + num_write;
4254 }
4255
4256 if (symbolic_header.idnMax > 0) /* dense numbers */
4257 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4258
4259 if (symbolic_header.ipdMax > 0) /* procedure tables */
4260 {
4261 offset = symbolic_header.cbPdOffset;
4262 for (file_ptr = first_file;
4263 file_ptr != (efdr_t *) 0;
4264 file_ptr = file_ptr->next_file)
4265 {
4266 write_varray (&file_ptr->procs, offset, "Procedure tables");
4267 offset = file_offset;
4268 }
4269 }
4270
4271 if (symbolic_header.isymMax > 0) /* local symbols */
4272 {
4273 offset = symbolic_header.cbSymOffset;
4274 for (file_ptr = first_file;
4275 file_ptr != (efdr_t *) 0;
4276 file_ptr = file_ptr->next_file)
4277 {
4278 write_varray (&file_ptr->symbols, offset, "Local symbols");
4279 offset = file_offset;
4280 }
4281 }
4282
4283 if (symbolic_header.iauxMax > 0) /* aux symbols */
4284 {
4285 offset = symbolic_header.cbAuxOffset;
4286 for (file_ptr = first_file;
4287 file_ptr != (efdr_t *) 0;
4288 file_ptr = file_ptr->next_file)
4289 {
4290 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4291 offset = file_offset;
4292 }
4293 }
4294
4295 if (symbolic_header.issMax > 0) /* local strings */
4296 {
4297 offset = symbolic_header.cbSsOffset;
4298 for (file_ptr = first_file;
4299 file_ptr != (efdr_t *) 0;
4300 file_ptr = file_ptr->next_file)
4301 {
4302 write_varray (&file_ptr->strings, offset, "Local strings");
4303 offset = file_offset;
4304 }
4305 }
4306
4307 if (symbolic_header.issExtMax > 0) /* external strings */
4308 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4309
4310 if (symbolic_header.ifdMax > 0) /* file tables */
4311 {
4312 offset = symbolic_header.cbFdOffset;
4313 if (file_offset != offset
4314 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4315 pfatal_with_name (object_name);
4316
4317 file_offset = offset;
4318 for (file_ptr = first_file;
4319 file_ptr != (efdr_t *) 0;
4320 file_ptr = file_ptr->next_file)
4321 {
4322 if (debug)
4323 {
4324 fputs ("\twrite\tvp = ", stderr);
4325 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &file_ptr->fdr);
4326 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4327 file_offset, (unsigned long) sizeof (FDR),
4328 "File header");
4329 }
4330
4331 sys_write = fwrite (&file_ptr->fdr,
4332 1,
4333 sizeof (FDR),
4334 object_stream);
4335
4336 if (sys_write < 0)
4337 pfatal_with_name (object_name);
4338
4339 else if (sys_write != sizeof (FDR))
4340 fatal ("Wrote %d bytes to %s, system returned %d",
4341 (int) sizeof (FDR),
4342 object_name,
4343 sys_write);
4344
4345 file_offset = offset += sizeof (FDR);
4346 }
4347 }
4348
4349 if (symbolic_header.crfd > 0) /* relative file descriptors */
4350 {
4351 long sys_write;
4352 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4353
4354 if (file_offset != symbolic_header.cbRfdOffset
4355 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4356 pfatal_with_name (object_name);
4357
4358 if (debug)
4359 {
4360 fputs ("\twrite\tvp = ", stderr);
4361 fprintf (stderr, HOST_PTR_PRINTF, (PTR_T *) &orig_rfds);
4362 fprintf (stderr, ", offset = %7lu, size = %7lu, %s\n",
4363 (long) symbolic_header.cbRfdOffset,
4364 num_write, "Relative file descriptors");
4365 }
4366
4367 sys_write = fwrite (orig_rfds,
4368 1,
4369 num_write,
4370 object_stream);
4371
4372 if (sys_write <= 0)
4373 pfatal_with_name (object_name);
4374
4375 else if (sys_write != (long)num_write)
4376 fatal ("Wrote %lu bytes to %s, system returned %ld",
4377 num_write,
4378 object_name,
4379 sys_write);
4380
4381 file_offset = symbolic_header.cbRfdOffset + num_write;
4382 }
4383
4384 if (symbolic_header.issExtMax > 0) /* external symbols */
4385 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4386
4387 if (fclose (object_stream) != 0)
4388 pfatal_with_name (object_name);
4389 }
4390
4391 \f
4392 /* Read some bytes at a specified location, and return a pointer. */
4393
4394 STATIC page_t *
4395 read_seek (size, offset, str)
4396 Size_t size; /* # bytes to read */
4397 off_t offset; /* offset to read at */
4398 const char *str; /* name for tracing */
4399 {
4400 page_t *ptr;
4401 long sys_read = 0;
4402
4403 if (size == 0) /* nothing to read */
4404 return (page_t *) 0;
4405
4406 if (debug)
4407 fprintf (stderr,
4408 "\trseek\tsize = %7lu, offset = %7lu, currently at %7lu, %s\n",
4409 (unsigned long) size, (unsigned long) offset, file_offset, str);
4410
4411 #ifndef MALLOC_CHECK
4412 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4413 #else
4414 ptr = (page_t *) xcalloc (1, size);
4415 #endif
4416
4417 /* If we need to seek, and the distance is nearby, just do some reads,
4418 to speed things up. */
4419 if (file_offset != offset)
4420 {
4421 symint_t difference = offset - file_offset;
4422
4423 if (difference < 8)
4424 {
4425 char small_buffer[8];
4426
4427 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4428 if (sys_read <= 0)
4429 pfatal_with_name (obj_in_name);
4430
4431 if ((symint_t)sys_read != difference)
4432 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4433 (unsigned long) size,
4434 obj_in_name,
4435 sys_read);
4436 }
4437 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4438 pfatal_with_name (obj_in_name);
4439 }
4440
4441 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4442 if (sys_read <= 0)
4443 pfatal_with_name (obj_in_name);
4444
4445 if (sys_read != (long) size)
4446 fatal ("Wanted to read %lu bytes from %s, system returned %ld",
4447 (unsigned long) size,
4448 obj_in_name,
4449 sys_read);
4450
4451 file_offset = offset + size;
4452
4453 if (file_offset > max_file_offset)
4454 max_file_offset = file_offset;
4455
4456 return ptr;
4457 }
4458
4459 \f
4460 /* Read the existing object file (and copy to the output object file
4461 if it is different from the input object file), and remove the old
4462 symbol table. */
4463
4464 STATIC void
4465 copy_object __proto((void))
4466 {
4467 char buffer[ PAGE_SIZE ];
4468 register int sys_read;
4469 register int remaining;
4470 register int num_write;
4471 register int sys_write;
4472 register int fd, es;
4473 register int delete_ifd = 0;
4474 register int *remap_file_number;
4475 struct stat stat_buf;
4476
4477 if (debug)
4478 fprintf (stderr, "\tcopy\n");
4479
4480 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4481 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4482 pfatal_with_name (obj_in_name);
4483
4484 sys_read = fread ((PTR_T) &orig_file_header,
4485 1,
4486 sizeof (struct filehdr),
4487 obj_in_stream);
4488
4489 if (sys_read < 0)
4490 pfatal_with_name (obj_in_name);
4491
4492 else if (sys_read == 0 && feof (obj_in_stream))
4493 return; /* create a .T file sans file header */
4494
4495 else if (sys_read < (int) sizeof (struct filehdr))
4496 fatal ("Wanted to read %d bytes from %s, system returned %d",
4497 (int) sizeof (struct filehdr),
4498 obj_in_name,
4499 sys_read);
4500
4501
4502 if (orig_file_header.f_nsyms != sizeof (HDRR))
4503 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4504 input_name, orig_file_header.f_nsyms, (int) sizeof (HDRR));
4505
4506
4507 /* Read in the current symbolic header. */
4508 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4509 pfatal_with_name (input_name);
4510
4511 sys_read = fread ((PTR_T) &orig_sym_hdr,
4512 1,
4513 sizeof (orig_sym_hdr),
4514 obj_in_stream);
4515
4516 if (sys_read < 0)
4517 pfatal_with_name (object_name);
4518
4519 else if (sys_read < (int) sizeof (struct filehdr))
4520 fatal ("Wanted to read %d bytes from %s, system returned %d",
4521 (int) sizeof (struct filehdr),
4522 obj_in_name,
4523 sys_read);
4524
4525
4526 /* Read in each of the sections if they exist in the object file.
4527 We read things in in the order the mips assembler creates the
4528 sections, so in theory no extra seeks are done.
4529
4530 For simplicity sake, round each read up to a page boundary,
4531 we may want to revisit this later.... */
4532
4533 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4534
4535 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4536 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4537 orig_sym_hdr.cbLineOffset,
4538 "Line numbers");
4539
4540 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4541 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4542 orig_sym_hdr.cbPdOffset,
4543 "Procedure tables");
4544
4545 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4546 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4547 orig_sym_hdr.cbSymOffset,
4548 "Local symbols");
4549
4550 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4551 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4552 orig_sym_hdr.cbAuxOffset,
4553 "Aux. symbols");
4554
4555 if (orig_sym_hdr.issMax > 0) /* local strings */
4556 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4557 orig_sym_hdr.cbSsOffset,
4558 "Local strings");
4559
4560 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4561 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4562 orig_sym_hdr.cbSsExtOffset,
4563 "External strings");
4564
4565 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4566 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4567 orig_sym_hdr.cbFdOffset,
4568 "File tables");
4569
4570 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4571 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4572 orig_sym_hdr.cbRfdOffset,
4573 "Relative file descriptors");
4574
4575 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4576 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4577 orig_sym_hdr.cbExtOffset,
4578 "External symbols");
4579
4580 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4581 {
4582 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4583 orig_sym_hdr.cbDnOffset,
4584 "Dense numbers");
4585
4586 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4587 }
4588
4589 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4590 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4591 orig_sym_hdr.cbOptOffset,
4592 "Optimizer symbols");
4593
4594
4595
4596 /* Abort if the symbol table is not last. */
4597 if (max_file_offset != stat_buf.st_size)
4598 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4599 max_file_offset,
4600 stat_buf.st_size);
4601
4602
4603 /* If the first original file descriptor is a dummy which the assembler
4604 put out, but there are no symbols in it, skip it now. */
4605 if (orig_sym_hdr.ifdMax > 1
4606 && orig_files->csym == 2
4607 && orig_files->caux == 0)
4608 {
4609 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4610 char *suffix = local_rindex (filename, '.');
4611
4612 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4613 delete_ifd = 1;
4614 }
4615
4616
4617 /* Create array to map original file numbers to the new file numbers
4618 (in case there are duplicate filenames, we collapse them into one
4619 file section, the MIPS assembler may or may not collapse them). */
4620
4621 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4622
4623 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4624 {
4625 register FDR *fd_ptr = ORIG_FILES (fd);
4626 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4627
4628 /* file support itself. */
4629 add_file (filename, filename + strlen (filename));
4630 remap_file_number[fd] = cur_file_ptr->file_index;
4631 }
4632
4633 if (delete_ifd > 0) /* just in case */
4634 remap_file_number[0] = remap_file_number[1];
4635
4636
4637 /* Loop, adding each of the external symbols. These must be in
4638 order or otherwise we would have to change the relocation
4639 entries. We don't just call add_bytes, because we need to have
4640 the names put into the external hash table. We set the type to
4641 'void' for now, and parse_def will fill in the correct type if it
4642 is in the symbol table. We must add the external symbols before
4643 the locals, since the locals do lookups against the externals. */
4644
4645 if (debug)
4646 fprintf (stderr, "\tehash\n");
4647
4648 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4649 {
4650 register EXTR *eptr = orig_ext_syms + es;
4651 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4652 register unsigned ifd = eptr->ifd;
4653
4654 (void) add_ext_symbol (ename,
4655 ename + strlen (ename),
4656 (st_t) eptr->asym.st,
4657 (sc_t) eptr->asym.sc,
4658 eptr->asym.value,
4659 (eptr->asym.index == indexNil
4660 ? (symint_t) indexNil : 0),
4661 ((long) ifd < orig_sym_hdr.ifdMax
4662 ? remap_file_number[ifd] : (int) ifd));
4663 }
4664
4665
4666 /* For each of the files in the object file, copy the symbols, and such
4667 into the varrays for the new object file. */
4668
4669 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4670 {
4671 register FDR *fd_ptr = ORIG_FILES (fd);
4672 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4673 register SYMR *sym_start;
4674 register SYMR *sym;
4675 register SYMR *sym_end_p1;
4676 register PDR *proc_start;
4677 register PDR *proc;
4678 register PDR *proc_end_p1;
4679
4680 /* file support itself. */
4681 add_file (filename, filename + strlen (filename));
4682 cur_file_ptr->orig_fdr = fd_ptr;
4683
4684 /* Copy stuff that's just passed through (such as line #'s) */
4685 cur_file_ptr->fdr.adr = fd_ptr->adr;
4686 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4687 cur_file_ptr->fdr.cline = fd_ptr->cline;
4688 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4689 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4690 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4691 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4692 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4693 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4694 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4695
4696 if (debug)
4697 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4698
4699 /* For each of the static and global symbols defined, add them
4700 to the hash table of original symbols, so we can look up
4701 their values. */
4702
4703 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4704 sym_end_p1 = sym_start + fd_ptr->csym;
4705 for (sym = sym_start; sym < sym_end_p1; sym++)
4706 {
4707 switch ((st_t) sym->st)
4708 {
4709 default:
4710 break;
4711
4712 case st_Global:
4713 case st_Static:
4714 case st_Label:
4715 case st_Proc:
4716 case st_StaticProc:
4717 {
4718 auto symint_t hash_index;
4719 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4720 register Size_t len = strlen (str);
4721 register shash_t *shash_ptr = hash_string (str,
4722 (Ptrdiff_t)len,
4723 &orig_str_hash[0],
4724 &hash_index);
4725
4726 if (shash_ptr != (shash_t *) 0)
4727 error ("internal error, %s is already in original symbol table", str);
4728
4729 else
4730 {
4731 shash_ptr = allocate_shash ();
4732 shash_ptr->next = orig_str_hash[hash_index];
4733 orig_str_hash[hash_index] = shash_ptr;
4734
4735 shash_ptr->len = len;
4736 shash_ptr->indx = indexNil;
4737 shash_ptr->string = str;
4738 shash_ptr->sym_ptr = sym;
4739 }
4740 }
4741 break;
4742
4743 case st_End:
4744 if ((sc_t) sym->sc == sc_Text)
4745 {
4746 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4747
4748 if (*str != '\0')
4749 {
4750 register Size_t len = strlen (str);
4751 register shash_t *shash_ptr = hash_string (str,
4752 (Ptrdiff_t)len,
4753 &orig_str_hash[0],
4754 (symint_t *) 0);
4755
4756 if (shash_ptr != (shash_t *) 0)
4757 shash_ptr->end_ptr = sym;
4758 }
4759 }
4760 break;
4761
4762 }
4763 }
4764
4765 if (debug)
4766 {
4767 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4768 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4769 }
4770
4771 /* Go through each of the procedures in this file, and add the
4772 procedure pointer to the hash entry for the given name. */
4773
4774 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4775 proc_end_p1 = proc_start + fd_ptr->cpd;
4776 for (proc = proc_start; proc < proc_end_p1; proc++)
4777 {
4778 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4779 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4780 register Size_t len = strlen (str);
4781 register shash_t *shash_ptr = hash_string (str,
4782 (Ptrdiff_t)len,
4783 &orig_str_hash[0],
4784 (symint_t *) 0);
4785
4786 if (shash_ptr == (shash_t *) 0)
4787 error ("internal error, function %s is not in original symbol table", str);
4788
4789 else
4790 shash_ptr->proc_ptr = proc;
4791 }
4792
4793 if (debug)
4794 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4795
4796 }
4797 cur_file_ptr = first_file;
4798
4799
4800 /* Copy all of the object file up to the symbol table. Originally
4801 we were going to use ftruncate, but that doesn't seem to work
4802 on Ultrix 3.1.... */
4803
4804 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4805 pfatal_with_name (obj_in_name);
4806
4807 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4808 pfatal_with_name (object_name);
4809
4810 for (remaining = orig_file_header.f_symptr;
4811 remaining > 0;
4812 remaining -= num_write)
4813 {
4814 num_write
4815 = (remaining <= (int) sizeof (buffer))
4816 ? remaining : (int) sizeof (buffer);
4817 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4818 if (sys_read <= 0)
4819 pfatal_with_name (obj_in_name);
4820
4821 else if (sys_read != num_write)
4822 fatal ("Wanted to read %d bytes from %s, system returned %d",
4823 num_write,
4824 obj_in_name,
4825 sys_read);
4826
4827 sys_write = fwrite (buffer, 1, num_write, object_stream);
4828 if (sys_write <= 0)
4829 pfatal_with_name (object_name);
4830
4831 else if (sys_write != num_write)
4832 fatal ("Wrote %d bytes to %s, system returned %d",
4833 num_write,
4834 object_name,
4835 sys_write);
4836 }
4837 }
4838
4839 \f
4840 /* Ye olde main program. */
4841
4842 extern int main PARAMS ((int, char **));
4843
4844 int
4845 main (argc, argv)
4846 int argc;
4847 char **argv;
4848 {
4849 int iflag = 0;
4850 char *p = local_rindex (argv[0], '/');
4851 char *num_end;
4852 int option;
4853 int i;
4854
4855 progname = (p != 0) ? p+1 : argv[0];
4856
4857 (void) signal (SIGSEGV, catch_signal);
4858 (void) signal (SIGBUS, catch_signal);
4859 (void) signal (SIGABRT, catch_signal);
4860
4861 #if !defined(__SABER__) && !defined(lint)
4862 if (sizeof (efdr_t) > PAGE_USIZE)
4863 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4864 (int) sizeof (efdr_t),
4865 (int) PAGE_USIZE);
4866
4867 if (sizeof (page_t) != PAGE_USIZE)
4868 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4869 (int) sizeof (page_t),
4870 (int) PAGE_USIZE);
4871
4872 #endif
4873
4874 alloc_counts[ alloc_type_none ].alloc_name = "none";
4875 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4876 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4877 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4878 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4879 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4880 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4881 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4882 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4883
4884 int_type_info = type_info_init;
4885 int_type_info.basic_type = bt_Int;
4886
4887 void_type_info = type_info_init;
4888 void_type_info.basic_type = bt_Void;
4889
4890 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4891 switch (option)
4892 {
4893 default:
4894 had_errors++;
4895 break;
4896
4897 case 'd':
4898 debug = strtol (optarg, &num_end, 0);
4899 if ((unsigned)debug > 4 || num_end == optarg)
4900 had_errors++;
4901
4902 break;
4903
4904 case 'I':
4905 if (rename_output || obj_in_name != (char *) 0)
4906 had_errors++;
4907 else
4908 rename_output = 1;
4909
4910 /* fall through to 'i' case. */
4911
4912 case 'i':
4913 if (obj_in_name == (char *) 0)
4914 {
4915 obj_in_name = optarg;
4916 iflag++;
4917 }
4918 else
4919 had_errors++;
4920 break;
4921
4922 case 'o':
4923 if (object_name == (char *) 0)
4924 object_name = optarg;
4925 else
4926 had_errors++;
4927 break;
4928
4929 case 'v':
4930 version++;
4931 break;
4932 }
4933
4934 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4935 obj_in_name = argv[--argc];
4936
4937 if (object_name == (char *) 0 && optind <= argc - 2)
4938 object_name = argv[--argc];
4939
4940 /* If there is an output name, but no input name use
4941 the same file for both, deleting the name between
4942 opening it for input and opening it for output. */
4943 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4944 {
4945 obj_in_name = object_name;
4946 delete_input = 1;
4947 }
4948
4949 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4950 {
4951 fprintf (stderr, _("Calling Sequence:\n"));
4952 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4953 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n"));
4954 fprintf (stderr, _("\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n"));
4955 fprintf (stderr, "\n");
4956 fprintf (stderr, _("Debug levels are:\n"));
4957 fprintf (stderr, _(" 1\tGeneral debug + trace functions/blocks.\n"));
4958 fprintf (stderr, _(" 2\tDebug level 1 + trace externals.\n"));
4959 fprintf (stderr, _(" 3\tDebug level 2 + trace all symbols.\n"));
4960 fprintf (stderr, _(" 4\tDebug level 3 + trace memory allocations.\n"));
4961 return 1;
4962 }
4963
4964
4965 if (version)
4966 {
4967 fprintf (stderr, _("mips-tfile version %s"), version_string);
4968 #ifdef TARGET_VERSION
4969 TARGET_VERSION;
4970 #endif
4971 fputc ('\n', stderr);
4972 }
4973
4974 if (obj_in_name == (char *) 0)
4975 obj_in_name = object_name;
4976
4977 if (rename_output && rename (object_name, obj_in_name) != 0)
4978 {
4979 char *buffer = (char *) allocate_multiple_pages (4);
4980 int len;
4981 int len2;
4982 int in_fd;
4983 int out_fd;
4984
4985 /* Rename failed, copy input file */
4986 in_fd = open (object_name, O_RDONLY, 0666);
4987 if (in_fd < 0)
4988 pfatal_with_name (object_name);
4989
4990 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4991 if (out_fd < 0)
4992 pfatal_with_name (obj_in_name);
4993
4994 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4995 {
4996 len2 = write (out_fd, buffer, len);
4997 if (len2 < 0)
4998 pfatal_with_name (object_name);
4999
5000 if (len != len2)
5001 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5002 }
5003
5004 free_multiple_pages ((page_t *)buffer, 4);
5005
5006 if (len < 0)
5007 pfatal_with_name (object_name);
5008
5009 if (close (in_fd) < 0)
5010 pfatal_with_name (object_name);
5011
5012 if (close (out_fd) < 0)
5013 pfatal_with_name (obj_in_name);
5014 }
5015
5016 /* Must open input before output, since the output may be the same file, and
5017 we need to get the input handle before truncating it. */
5018 obj_in_stream = fopen (obj_in_name, "r");
5019 if (obj_in_stream == (FILE *) 0)
5020 pfatal_with_name (obj_in_name);
5021
5022 if (delete_input && unlink (obj_in_name) != 0)
5023 pfatal_with_name (obj_in_name);
5024
5025 object_stream = fopen (object_name, "w");
5026 if (object_stream == (FILE *) 0)
5027 pfatal_with_name (object_name);
5028
5029 if (strcmp (argv[optind], "-") != 0)
5030 {
5031 input_name = argv[optind];
5032 if (freopen (argv[optind], "r", stdin) != stdin)
5033 pfatal_with_name (argv[optind]);
5034 }
5035
5036 copy_object (); /* scan & copy object file */
5037 parse_input (); /* scan all of input */
5038
5039 update_headers (); /* write out tfile */
5040 write_object ();
5041
5042 if (debug)
5043 {
5044 fprintf (stderr, "\n\tAllocation summary:\n\n");
5045 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5046 if (alloc_counts[i].total_alloc)
5047 {
5048 fprintf (stderr,
5049 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5050 alloc_counts[i].alloc_name,
5051 alloc_counts[i].total_alloc,
5052 alloc_counts[i].total_free,
5053 alloc_counts[i].total_pages);
5054 }
5055 }
5056
5057 return (had_errors) ? 1 : 0;
5058 }
5059
5060 \f
5061 /* Catch a signal and exit without dumping core. */
5062
5063 STATIC void
5064 catch_signal (signum)
5065 int signum;
5066 {
5067 (void) signal (signum, SIG_DFL); /* just in case... */
5068 fatal ("%s", strsignal(signum));
5069 }
5070
5071 /* Print a fatal error message. NAME is the text.
5072 Also include a system error message based on `errno'. */
5073
5074 void
5075 pfatal_with_name (msg)
5076 const char *msg;
5077 {
5078 int save_errno = errno; /* just in case.... */
5079 if (line_number > 0)
5080 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5081 else
5082 fprintf (stderr, "%s:", progname);
5083
5084 errno = save_errno;
5085 if (errno == 0)
5086 fprintf (stderr, "[errno = 0] %s\n", msg);
5087 else
5088 perror (msg);
5089
5090 exit (1);
5091 }
5092
5093 \f
5094 /* Procedure to abort with an out of bounds error message. It has
5095 type int, so it can be used with an ?: expression within the
5096 ORIG_xxx macros, but the function never returns. */
5097
5098 static int
5099 out_of_bounds (indx, max, str, prog_line)
5100 symint_t indx; /* index that is out of bounds */
5101 symint_t max; /* maximum index */
5102 const char *str; /* string to print out */
5103 int prog_line; /* line number within mips-tfile.c */
5104 {
5105 if (indx < max) /* just in case */
5106 return 0;
5107
5108 fprintf (stderr, "%s, %s:%ld index %lu is out of bounds for %s, max is %lu, mips-tfile.c line# %d\n",
5109 progname, input_name, line_number, indx, str, max, prog_line);
5110
5111 exit (1);
5112 return 0; /* turn off warning messages */
5113 }
5114
5115 \f
5116 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5117 like sbrk's behind its back (or sbrk isn't available). If we use
5118 sbrk, we assume it gives us zeroed pages. */
5119
5120 #ifndef MALLOC_CHECK
5121 #ifdef USE_MALLOC
5122
5123 STATIC page_t *
5124 allocate_cluster (npages)
5125 Size_t npages;
5126 {
5127 register page_t *value = (page_t *) xcalloc (npages, PAGE_USIZE);
5128
5129 if (debug > 3)
5130 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5131
5132 return value;
5133 }
5134
5135 #else /* USE_MALLOC */
5136
5137 STATIC page_t *
5138 allocate_cluster (npages)
5139 Size_t npages;
5140 {
5141 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5142 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5143
5144 if (offset != 0) /* align to a page boundary */
5145 {
5146 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5147 pfatal_with_name ("allocate_cluster");
5148
5149 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5150 }
5151
5152 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5153 pfatal_with_name ("allocate_cluster");
5154
5155 if (debug > 3)
5156 {
5157 fprintf (stderr, "\talloc\tnpages = %lu, value = ",
5158 (unsigned long) npages);
5159 fprintf (stderr, HOST_PTR_PRINTF, ptr);
5160 fputs ("\n", stderr);
5161 }
5162
5163 return ptr;
5164 }
5165
5166 #endif /* USE_MALLOC */
5167
5168
5169 static page_t *cluster_ptr = NULL;
5170 static unsigned pages_left = 0;
5171
5172 #endif /* MALLOC_CHECK */
5173
5174
5175 /* Allocate some pages (which is initialized to 0). */
5176
5177 STATIC page_t *
5178 allocate_multiple_pages (npages)
5179 Size_t npages;
5180 {
5181 #ifndef MALLOC_CHECK
5182 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5183 {
5184 pages_left = MAX_CLUSTER_PAGES;
5185 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5186 }
5187
5188 if (npages <= pages_left)
5189 {
5190 page_t *ptr = cluster_ptr;
5191 cluster_ptr += npages;
5192 pages_left -= npages;
5193 return ptr;
5194 }
5195
5196 return allocate_cluster (npages);
5197
5198 #else /* MALLOC_CHECK */
5199 return (page_t *) xcalloc (npages, PAGE_SIZE);
5200
5201 #endif /* MALLOC_CHECK */
5202 }
5203
5204
5205 /* Release some pages. */
5206
5207 STATIC void
5208 free_multiple_pages (page_ptr, npages)
5209 page_t *page_ptr;
5210 Size_t npages;
5211 {
5212 #ifndef MALLOC_CHECK
5213 if (pages_left == 0)
5214 {
5215 cluster_ptr = page_ptr;
5216 pages_left = npages;
5217 }
5218
5219 else if ((page_ptr + npages) == cluster_ptr)
5220 {
5221 cluster_ptr -= npages;
5222 pages_left += npages;
5223 }
5224
5225 /* otherwise the page is not freed. If more than call is
5226 done, we probably should worry about it, but at present,
5227 the free pages is done right after an allocate. */
5228
5229 #else /* MALLOC_CHECK */
5230 free ((char *) page_ptr);
5231
5232 #endif /* MALLOC_CHECK */
5233 }
5234
5235
5236 /* Allocate one page (which is initialized to 0). */
5237
5238 STATIC page_t *
5239 allocate_page __proto((void))
5240 {
5241 #ifndef MALLOC_CHECK
5242 if (pages_left == 0)
5243 {
5244 pages_left = MAX_CLUSTER_PAGES;
5245 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5246 }
5247
5248 pages_left--;
5249 return cluster_ptr++;
5250
5251 #else /* MALLOC_CHECK */
5252 return (page_t *) xcalloc (1, PAGE_SIZE);
5253
5254 #endif /* MALLOC_CHECK */
5255 }
5256
5257 \f
5258 /* Allocate scoping information. */
5259
5260 STATIC scope_t *
5261 allocate_scope __proto((void))
5262 {
5263 register scope_t *ptr;
5264 static scope_t initial_scope;
5265
5266 #ifndef MALLOC_CHECK
5267 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5268 if (ptr != (scope_t *) 0)
5269 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5270
5271 else
5272 {
5273 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5274 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5275
5276 if (unallocated == 0)
5277 {
5278 unallocated = PAGE_SIZE / sizeof (scope_t);
5279 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5280 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5281 }
5282
5283 ptr = &cur_page->scope[ --unallocated ];
5284 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5285 }
5286
5287 #else
5288 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5289
5290 #endif
5291
5292 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5293 *ptr = initial_scope;
5294 return ptr;
5295 }
5296
5297 /* Free scoping information. */
5298
5299 STATIC void
5300 free_scope (ptr)
5301 scope_t *ptr;
5302 {
5303 alloc_counts[ (int)alloc_type_scope ].total_free++;
5304
5305 #ifndef MALLOC_CHECK
5306 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5307 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5308
5309 #else
5310 free ((PTR_T) ptr);
5311 #endif
5312
5313 }
5314
5315 \f
5316 /* Allocate links for pages in a virtual array. */
5317
5318 STATIC vlinks_t *
5319 allocate_vlinks __proto((void))
5320 {
5321 register vlinks_t *ptr;
5322 static vlinks_t initial_vlinks;
5323
5324 #ifndef MALLOC_CHECK
5325 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5326 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5327
5328 if (unallocated == 0)
5329 {
5330 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5331 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5332 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5333 }
5334
5335 ptr = &cur_page->vlinks[ --unallocated ];
5336 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5337
5338 #else
5339 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5340
5341 #endif
5342
5343 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5344 *ptr = initial_vlinks;
5345 return ptr;
5346 }
5347
5348 \f
5349 /* Allocate string hash buckets. */
5350
5351 STATIC shash_t *
5352 allocate_shash __proto((void))
5353 {
5354 register shash_t *ptr;
5355 static shash_t initial_shash;
5356
5357 #ifndef MALLOC_CHECK
5358 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5359 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5360
5361 if (unallocated == 0)
5362 {
5363 unallocated = PAGE_SIZE / sizeof (shash_t);
5364 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5365 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5366 }
5367
5368 ptr = &cur_page->shash[ --unallocated ];
5369 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5370
5371 #else
5372 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5373
5374 #endif
5375
5376 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5377 *ptr = initial_shash;
5378 return ptr;
5379 }
5380
5381 \f
5382 /* Allocate type hash buckets. */
5383
5384 STATIC thash_t *
5385 allocate_thash __proto((void))
5386 {
5387 register thash_t *ptr;
5388 static thash_t initial_thash;
5389
5390 #ifndef MALLOC_CHECK
5391 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5392 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5393
5394 if (unallocated == 0)
5395 {
5396 unallocated = PAGE_SIZE / sizeof (thash_t);
5397 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5398 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5399 }
5400
5401 ptr = &cur_page->thash[ --unallocated ];
5402 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5403
5404 #else
5405 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5406
5407 #endif
5408
5409 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5410 *ptr = initial_thash;
5411 return ptr;
5412 }
5413
5414 \f
5415 /* Allocate structure, union, or enum tag information. */
5416
5417 STATIC tag_t *
5418 allocate_tag __proto((void))
5419 {
5420 register tag_t *ptr;
5421 static tag_t initial_tag;
5422
5423 #ifndef MALLOC_CHECK
5424 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5425 if (ptr != (tag_t *) 0)
5426 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5427
5428 else
5429 {
5430 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5431 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5432
5433 if (unallocated == 0)
5434 {
5435 unallocated = PAGE_SIZE / sizeof (tag_t);
5436 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5437 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5438 }
5439
5440 ptr = &cur_page->tag[ --unallocated ];
5441 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5442 }
5443
5444 #else
5445 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5446
5447 #endif
5448
5449 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5450 *ptr = initial_tag;
5451 return ptr;
5452 }
5453
5454 /* Free scoping information. */
5455
5456 STATIC void
5457 free_tag (ptr)
5458 tag_t *ptr;
5459 {
5460 alloc_counts[ (int)alloc_type_tag ].total_free++;
5461
5462 #ifndef MALLOC_CHECK
5463 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5464 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5465
5466 #else
5467 free ((PTR_T) ptr);
5468 #endif
5469
5470 }
5471
5472 \f
5473 /* Allocate forward reference to a yet unknown tag. */
5474
5475 STATIC forward_t *
5476 allocate_forward __proto((void))
5477 {
5478 register forward_t *ptr;
5479 static forward_t initial_forward;
5480
5481 #ifndef MALLOC_CHECK
5482 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5483 if (ptr != (forward_t *) 0)
5484 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5485
5486 else
5487 {
5488 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5489 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5490
5491 if (unallocated == 0)
5492 {
5493 unallocated = PAGE_SIZE / sizeof (forward_t);
5494 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5495 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5496 }
5497
5498 ptr = &cur_page->forward[ --unallocated ];
5499 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5500 }
5501
5502 #else
5503 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5504
5505 #endif
5506
5507 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5508 *ptr = initial_forward;
5509 return ptr;
5510 }
5511
5512 /* Free scoping information. */
5513
5514 STATIC void
5515 free_forward (ptr)
5516 forward_t *ptr;
5517 {
5518 alloc_counts[ (int)alloc_type_forward ].total_free++;
5519
5520 #ifndef MALLOC_CHECK
5521 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5522 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5523
5524 #else
5525 free ((PTR_T) ptr);
5526 #endif
5527
5528 }
5529
5530 \f
5531 /* Allocate head of type hash list. */
5532
5533 STATIC thead_t *
5534 allocate_thead __proto((void))
5535 {
5536 register thead_t *ptr;
5537 static thead_t initial_thead;
5538
5539 #ifndef MALLOC_CHECK
5540 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5541 if (ptr != (thead_t *) 0)
5542 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5543
5544 else
5545 {
5546 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5547 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5548
5549 if (unallocated == 0)
5550 {
5551 unallocated = PAGE_SIZE / sizeof (thead_t);
5552 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5553 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5554 }
5555
5556 ptr = &cur_page->thead[ --unallocated ];
5557 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5558 }
5559
5560 #else
5561 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5562
5563 #endif
5564
5565 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5566 *ptr = initial_thead;
5567 return ptr;
5568 }
5569
5570 /* Free scoping information. */
5571
5572 STATIC void
5573 free_thead (ptr)
5574 thead_t *ptr;
5575 {
5576 alloc_counts[ (int)alloc_type_thead ].total_free++;
5577
5578 #ifndef MALLOC_CHECK
5579 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5580 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5581
5582 #else
5583 free ((PTR_T) ptr);
5584 #endif
5585
5586 }
5587
5588 #endif /* MIPS_DEBUGGING_INFO */
5589
5590 \f
5591 /* Output an error message and exit */
5592
5593 /*VARARGS*/
5594 void
5595 fatal VPARAMS ((const char *format, ...))
5596 {
5597 #ifndef ANSI_PROTOTYPES
5598 const char *format;
5599 #endif
5600 va_list ap;
5601
5602 VA_START (ap, format);
5603
5604 #ifndef ANSI_PROTOTYPES
5605 format = va_arg (ap, const char *);
5606 #endif
5607
5608 if (line_number > 0)
5609 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5610 else
5611 fprintf (stderr, "%s:", progname);
5612
5613 vfprintf (stderr, format, ap);
5614 va_end (ap);
5615 fprintf (stderr, "\n");
5616 if (line_number > 0)
5617 fprintf (stderr, "line:\t%s\n", cur_line_start);
5618
5619 saber_stop ();
5620 exit (1);
5621 }
5622
5623 /*VARARGS*/
5624 void
5625 error VPARAMS ((const char *format, ...))
5626 {
5627 #ifndef ANSI_PROTOTYPES
5628 char *format;
5629 #endif
5630 va_list ap;
5631
5632 VA_START (ap, format);
5633
5634 #ifndef ANSI_PROTOTYPES
5635 format = va_arg (ap, char *);
5636 #endif
5637
5638 if (line_number > 0)
5639 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5640 else
5641 fprintf (stderr, "%s:", progname);
5642
5643 vfprintf (stderr, format, ap);
5644 fprintf (stderr, "\n");
5645 if (line_number > 0)
5646 fprintf (stderr, "line:\t%s\n", cur_line_start);
5647
5648 had_errors++;
5649 va_end (ap);
5650
5651 saber_stop ();
5652 }
5653
5654 /* More 'friendly' abort that prints the line and file.
5655 config.h can #define abort fancy_abort if you like that sort of thing. */
5656
5657 void
5658 fancy_abort ()
5659 {
5660 fatal ("Internal abort.");
5661 }
5662 \f
5663
5664 /* When `malloc.c' is compiled with `rcheck' defined,
5665 it calls this function to report clobberage. */
5666
5667 void
5668 botch (s)
5669 const char *s;
5670 {
5671 fatal ("%s", s);
5672 }
5673
5674 \f
5675 /* Define our own index/rindex, since the local and global symbol
5676 structures as defined by MIPS has an 'index' field. */
5677
5678 STATIC char *
5679 local_index (str, sentinel)
5680 const char *str;
5681 int sentinel;
5682 {
5683 int ch;
5684
5685 for ( ; (ch = *str) != sentinel; str++)
5686 {
5687 if (ch == '\0')
5688 return (char *) 0;
5689 }
5690
5691 return (char *)str;
5692 }
5693
5694 STATIC char *
5695 local_rindex (str, sentinel)
5696 const char *str;
5697 int sentinel;
5698 {
5699 int ch;
5700 const char *ret = (const char *) 0;
5701
5702 for ( ; (ch = *str) != '\0'; str++)
5703 {
5704 if (ch == sentinel)
5705 ret = str;
5706 }
5707
5708 return (char *)ret;
5709 }
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