]> gcc.gnu.org Git - gcc.git/blob - gcc/mips-tfile.c
git://gcc.gnu.org / gcc.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
*** empty log message ***
[gcc.git] / gcc / mips-tfile.c
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 Contributed by: Michael Meissner, meissner@osf.org
6 Copyright (C) 1991 Free Software Foundation, Inc.
7
8 This file is part of GNU CC.
9
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
13 any later version.
14
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23
24 \f
25 /* Here is a brief description of the MIPS ECOFF symbol table. The
26 MIPS symbol table has the following pieces:
27
28 Symbolic Header
29 |
30 +-- Auxiliary Symbols
31 |
32 +-- Dense number table
33 |
34 +-- Optimizer Symbols
35 |
36 +-- External Strings
37 |
38 +-- External Symbols
39 |
40 +-- Relative file descriptors
41 |
42 +-- File table
43 |
44 +-- Procedure table
45 |
46 +-- Line number table
47 |
48 +-- Local Strings
49 |
50 +-- Local Symbols
51
52 The symbolic header points to each of the other tables, and also
53 contains the number of entries. It also contains a magic number
54 and MIPS compiler version number, such as 2.0.
55
56 The auxiliary table is a series of 32 bit integers, that are
57 referenced as needed from the local symbol table. Unlike standard
58 COFF, the aux. information does not follow the symbol that uses
59 it, but rather is a separate table. In theory, this would allow
60 the MIPS compilers to collapse duplicate aux. entries, but I've not
61 noticed this happening with the 1.31 compiler suite. The different
62 types of aux. entries are:
63
64 1) dnLow: Low bound on array dimension.
65
66 2) dnHigh: High bound on array dimension.
67
68 3) isym: Index to the local symbol which is the start of the
69 function for the end of function first aux. entry.
70
71 4) width: Width of structures and bitfields.
72
73 5) count: Count of ranges for variant part.
74
75 6) rndx: A relative index into the symbol table. The relative
76 index field has two parts: rfd which is a pointer into the
77 relative file index table or ST_RFDESCAPE which says the next
78 aux. entry is the file number, and index: which is the pointer
79 into the local symbol within a given file table. This is for
80 things like references to types defined in another file.
81
82 7) Type information: This is like the COFF type bits, except it
83 is 32 bits instead of 16; they still have room to add new
84 basic types; and they can handle more than 6 levels of array,
85 pointer, function, etc. Each type information field contains
86 the following structure members:
87
88 a) fBitfield: a bit that says this is a bitfield, and the
89 size in bits follows as the next aux. entry.
90
91 b) continued: a bit that says the next aux. entry is a
92 continuation of the current type information (in case
93 there are more than 6 levels of array/ptr/function).
94
95 c) bt: an integer containing the base type before adding
96 array, pointer, function, etc. qualifiers. The
97 current base types that I have documentation for are:
98
99 btNil -- undefined
100 btAdr -- address - integer same size as ptr
101 btChar -- character
102 btUChar -- unsigned character
103 btShort -- short
104 btUShort -- unsigned short
105 btInt -- int
106 btUInt -- unsigned int
107 btLong -- long
108 btULong -- unsigned long
109 btFloat -- float (real)
110 btDouble -- Double (real)
111 btStruct -- Structure (Record)
112 btUnion -- Union (variant)
113 btEnum -- Enumerated
114 btTypedef -- defined via a typedef isymRef
115 btRange -- subrange of int
116 btSet -- pascal sets
117 btComplex -- fortran complex
118 btDComplex -- fortran double complex
119 btIndirect -- forward or unnamed typedef
120 btFixedDec -- Fixed Decimal
121 btFloatDec -- Float Decimal
122 btString -- Varying Length Character String
123 btBit -- Aligned Bit String
124 btPicture -- Picture
125 btVoid -- Void (MIPS cc revision >= 2.00)
126
127 d) tq0 - tq5: type qualifier fields as needed. The
128 current type qualifier fields I have documentation for
129 are:
130
131 tqNil -- no more qualifiers
132 tqPtr -- pointer
133 tqProc -- procedure
134 tqArray -- array
135 tqFar -- 8086 far pointers
136 tqVol -- volatile
137
138
139 The dense number table is used in the front ends, and disappears by
140 the time the .o is created.
141
142 With the 1.31 compiler suite, the optimization symbols don't seem
143 to be used as far as I can tell.
144
145 The linker is the first entity that creates the relative file
146 descriptor table, and I believe it is used so that the individual
147 file table pointers don't have to be rewritten when the objects are
148 merged together into the program file.
149
150 Unlike COFF, the basic symbol & string tables are split into
151 external and local symbols/strings. The relocation information
152 only goes off of the external symbol table, and the debug
153 information only goes off of the internal symbol table. The
154 external symbols can have links to an appropriate file index and
155 symbol within the file to give it the appropriate type information.
156 Because of this, the external symbols are actually larger than the
157 internal symbols (to contain the link information), and contain the
158 local symbol structure as a member, though this member is not the
159 first member of the external symbol structure (!). I suspect this
160 split is to make strip easier to deal with.
161
162 Each file table has offsets for where the line numbers, local
163 strings, local symbols, and procedure table starts from within the
164 global tables, and the indexs are reset to 0 for each of those
165 tables for the file.
166
167 The procedure table contains the binary equivalents of the .ent
168 (start of the function address), .frame (what register is the
169 virtual frame pointer, constant offset from the register to obtain
170 the VFP, and what register holds the return address), .mask/.fmask
171 (bitmask of saved registers, and where the first register is stored
172 relative to the VFP) assembler directives. It also contains the
173 low and high bounds of the line numbers if debugging is turned on.
174
175 The line number table is a compressed form of the normal COFF line
176 table. Each line number entry is either 1 or 3 bytes long, and
177 contains a signed delta from the previous line, and an unsigned
178 count of the number of instructions this statement takes.
179
180 The local symbol table contains the following fields:
181
182 1) iss: index to the local string table giving the name of the
183 symbol.
184
185 2) value: value of the symbol (address, register number, etc.).
186
187 3) st: symbol type. The current symbol types are:
188
189 stNil -- Nuthin' special
190 stGlobal -- external symbol
191 stStatic -- static
192 stParam -- procedure argument
193 stLocal -- local variable
194 stLabel -- label
195 stProc -- External Procedure
196 stBlock -- beginning of block
197 stEnd -- end (of anything)
198 stMember -- member (of anything)
199 stTypedef -- type definition
200 stFile -- file name
201 stRegReloc -- register relocation
202 stForward -- forwarding address
203 stStaticProc -- Static procedure
204 stConstant -- const
205
206 4) sc: storage class. The current storage classes are:
207
208 scText -- text symbol
209 scData -- initialized data symbol
210 scBss -- un-initialized data symbol
211 scRegister -- value of symbol is register number
212 scAbs -- value of symbol is absolute
213 scUndefined -- who knows?
214 scCdbLocal -- variable's value is IN se->va.??
215 scBits -- this is a bit field
216 scCdbSystem -- value is IN debugger's address space
217 scRegImage -- register value saved on stack
218 scInfo -- symbol contains debugger information
219 scUserStruct -- addr in struct user for current process
220 scSData -- load time only small data
221 scSBss -- load time only small common
222 scRData -- load time only read only data
223 scVar -- Var parameter (fortranpascal)
224 scCommon -- common variable
225 scSCommon -- small common
226 scVarRegister -- Var parameter in a register
227 scVariant -- Variant record
228 scSUndefined -- small undefined(external) data
229 scInit -- .init section symbol
230
231 5) index: pointer to a local symbol or aux. entry.
232
233
234
235 For the following program:
236
237 #include <stdio.h>
238
239 main(){
240 printf("Hello World!\n");
241 return 0;
242 }
243
244 Mips-tdump produces the following information:
245
246 Global file header:
247 magic number 0x162
248 # sections 2
249 timestamp 645311799, Wed Jun 13 17:16:39 1990
250 symbolic header offset 284
251 symbolic header size 96
252 optional header 56
253 flags 0x0
254
255 Symbolic header, magic number = 0x7009, vstamp = 1.31:
256
257 Info Offset Number Bytes
258 ==== ====== ====== =====
259
260 Line numbers 380 4 4 [13]
261 Dense numbers 0 0 0
262 Procedures Tables 384 1 52
263 Local Symbols 436 16 192
264 Optimization Symbols 0 0 0
265 Auxiliary Symbols 628 39 156
266 Local Strings 784 80 80
267 External Strings 864 144 144
268 File Tables 1008 2 144
269 Relative Files 0 0 0
270 External Symbols 1152 20 320
271
272 File #0, "hello2.c"
273
274 Name index = 1 Readin = No
275 Merge = No Endian = LITTLE
276 Debug level = G2 Language = C
277 Adr = 0x00000000
278
279 Info Start Number Size Offset
280 ==== ===== ====== ==== ======
281 Local strings 0 15 15 784
282 Local symbols 0 6 72 436
283 Line numbers 0 13 13 380
284 Optimization symbols 0 0 0 0
285 Procedures 0 1 52 384
286 Auxiliary symbols 0 14 56 628
287 Relative Files 0 0 0 0
288
289 There are 6 local symbols, starting at 436
290
291 Symbol# 0: "hello2.c"
292 End+1 symbol = 6
293 String index = 1
294 Storage class = Text Index = 6
295 Symbol type = File Value = 0
296
297 Symbol# 1: "main"
298 End+1 symbol = 5
299 Type = int
300 String index = 10
301 Storage class = Text Index = 12
302 Symbol type = Proc Value = 0
303
304 Symbol# 2: ""
305 End+1 symbol = 4
306 String index = 0
307 Storage class = Text Index = 4
308 Symbol type = Block Value = 8
309
310 Symbol# 3: ""
311 First symbol = 2
312 String index = 0
313 Storage class = Text Index = 2
314 Symbol type = End Value = 28
315
316 Symbol# 4: "main"
317 First symbol = 1
318 String index = 10
319 Storage class = Text Index = 1
320 Symbol type = End Value = 52
321
322 Symbol# 5: "hello2.c"
323 First symbol = 0
324 String index = 1
325 Storage class = Text Index = 0
326 Symbol type = End Value = 0
327
328 There are 14 auxiliary table entries, starting at 628.
329
330 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
331 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
332 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
333 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
334 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
335 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
336 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
337 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
338 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
339 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
340 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
341 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
342 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
343 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
344
345 There are 1 procedure descriptor entries, starting at 0.
346
347 Procedure descriptor 0:
348 Name index = 10 Name = "main"
349 .mask 0x80000000,-4 .fmask 0x00000000,0
350 .frame $29,24,$31
351 Opt. start = -1 Symbols start = 1
352 First line # = 3 Last line # = 6
353 Line Offset = 0 Address = 0x00000000
354
355 There are 4 bytes holding line numbers, starting at 380.
356 Line 3, delta 0, count 2
357 Line 4, delta 1, count 3
358 Line 5, delta 1, count 2
359 Line 6, delta 1, count 6
360
361 File #1, "/usr/include/stdio.h"
362
363 Name index = 1 Readin = No
364 Merge = Yes Endian = LITTLE
365 Debug level = G2 Language = C
366 Adr = 0x00000000
367
368 Info Start Number Size Offset
369 ==== ===== ====== ==== ======
370 Local strings 15 65 65 799
371 Local symbols 6 10 120 508
372 Line numbers 0 0 0 380
373 Optimization symbols 0 0 0 0
374 Procedures 1 0 0 436
375 Auxiliary symbols 14 25 100 684
376 Relative Files 0 0 0 0
377
378 There are 10 local symbols, starting at 442
379
380 Symbol# 0: "/usr/include/stdio.h"
381 End+1 symbol = 10
382 String index = 1
383 Storage class = Text Index = 10
384 Symbol type = File Value = 0
385
386 Symbol# 1: "_iobuf"
387 End+1 symbol = 9
388 String index = 22
389 Storage class = Info Index = 9
390 Symbol type = Block Value = 20
391
392 Symbol# 2: "_cnt"
393 Type = int
394 String index = 29
395 Storage class = Info Index = 4
396 Symbol type = Member Value = 0
397
398 Symbol# 3: "_ptr"
399 Type = ptr to char
400 String index = 34
401 Storage class = Info Index = 15
402 Symbol type = Member Value = 32
403
404 Symbol# 4: "_base"
405 Type = ptr to char
406 String index = 39
407 Storage class = Info Index = 16
408 Symbol type = Member Value = 64
409
410 Symbol# 5: "_bufsiz"
411 Type = int
412 String index = 45
413 Storage class = Info Index = 4
414 Symbol type = Member Value = 96
415
416 Symbol# 6: "_flag"
417 Type = short
418 String index = 53
419 Storage class = Info Index = 3
420 Symbol type = Member Value = 128
421
422 Symbol# 7: "_file"
423 Type = char
424 String index = 59
425 Storage class = Info Index = 2
426 Symbol type = Member Value = 144
427
428 Symbol# 8: ""
429 First symbol = 1
430 String index = 0
431 Storage class = Info Index = 1
432 Symbol type = End Value = 0
433
434 Symbol# 9: "/usr/include/stdio.h"
435 First symbol = 0
436 String index = 1
437 Storage class = Text Index = 0
438 Symbol type = End Value = 0
439
440 There are 25 auxiliary table entries, starting at 642.
441
442 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
443 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
444 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
446 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
447 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
448 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
449 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
450 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
451 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
452 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
453 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
454 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467
468 There are 0 procedure descriptor entries, starting at 1.
469
470 There are 20 external symbols, starting at 1152
471
472 Symbol# 0: "_iob"
473 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
474 String index = 0 Ifd = 1
475 Storage class = Nil Index = 17
476 Symbol type = Global Value = 60
477
478 Symbol# 1: "fopen"
479 String index = 5 Ifd = 1
480 Storage class = Nil Index = 1048575
481 Symbol type = Proc Value = 0
482
483 Symbol# 2: "fdopen"
484 String index = 11 Ifd = 1
485 Storage class = Nil Index = 1048575
486 Symbol type = Proc Value = 0
487
488 Symbol# 3: "freopen"
489 String index = 18 Ifd = 1
490 Storage class = Nil Index = 1048575
491 Symbol type = Proc Value = 0
492
493 Symbol# 4: "popen"
494 String index = 26 Ifd = 1
495 Storage class = Nil Index = 1048575
496 Symbol type = Proc Value = 0
497
498 Symbol# 5: "tmpfile"
499 String index = 32 Ifd = 1
500 Storage class = Nil Index = 1048575
501 Symbol type = Proc Value = 0
502
503 Symbol# 6: "ftell"
504 String index = 40 Ifd = 1
505 Storage class = Nil Index = 1048575
506 Symbol type = Proc Value = 0
507
508 Symbol# 7: "rewind"
509 String index = 46 Ifd = 1
510 Storage class = Nil Index = 1048575
511 Symbol type = Proc Value = 0
512
513 Symbol# 8: "setbuf"
514 String index = 53 Ifd = 1
515 Storage class = Nil Index = 1048575
516 Symbol type = Proc Value = 0
517
518 Symbol# 9: "setbuffer"
519 String index = 60 Ifd = 1
520 Storage class = Nil Index = 1048575
521 Symbol type = Proc Value = 0
522
523 Symbol# 10: "setlinebuf"
524 String index = 70 Ifd = 1
525 Storage class = Nil Index = 1048575
526 Symbol type = Proc Value = 0
527
528 Symbol# 11: "fgets"
529 String index = 81 Ifd = 1
530 Storage class = Nil Index = 1048575
531 Symbol type = Proc Value = 0
532
533 Symbol# 12: "gets"
534 String index = 87 Ifd = 1
535 Storage class = Nil Index = 1048575
536 Symbol type = Proc Value = 0
537
538 Symbol# 13: "ctermid"
539 String index = 92 Ifd = 1
540 Storage class = Nil Index = 1048575
541 Symbol type = Proc Value = 0
542
543 Symbol# 14: "cuserid"
544 String index = 100 Ifd = 1
545 Storage class = Nil Index = 1048575
546 Symbol type = Proc Value = 0
547
548 Symbol# 15: "tempnam"
549 String index = 108 Ifd = 1
550 Storage class = Nil Index = 1048575
551 Symbol type = Proc Value = 0
552
553 Symbol# 16: "tmpnam"
554 String index = 116 Ifd = 1
555 Storage class = Nil Index = 1048575
556 Symbol type = Proc Value = 0
557
558 Symbol# 17: "sprintf"
559 String index = 123 Ifd = 1
560 Storage class = Nil Index = 1048575
561 Symbol type = Proc Value = 0
562
563 Symbol# 18: "main"
564 Type = int
565 String index = 131 Ifd = 0
566 Storage class = Text Index = 1
567 Symbol type = Proc Value = 0
568
569 Symbol# 19: "printf"
570 String index = 136 Ifd = 0
571 Storage class = Undefined Index = 1048575
572 Symbol type = Proc Value = 0
573
574 The following auxiliary table entries were unused:
575
576 #0 0 0x00000000 void
577 #2 8 0x00000008 char
578 #3 16 0x00000010 short
579 #4 24 0x00000018 int
580 #5 32 0x00000020 long
581 #6 40 0x00000028 float
582 #7 44 0x0000002c double
583 #8 12 0x0000000c unsigned char
584 #9 20 0x00000014 unsigned short
585 #10 28 0x0000001c unsigned int
586 #11 36 0x00000024 unsigned long
587 #14 0 0x00000000 void
588 #15 24 0x00000018 int
589 #19 32 0x00000020 long
590 #20 40 0x00000028 float
591 #21 44 0x0000002c double
592 #22 12 0x0000000c unsigned char
593 #23 20 0x00000014 unsigned short
594 #24 28 0x0000001c unsigned int
595 #25 36 0x00000024 unsigned long
596 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
597
598 */
599 \f
600
601 #include <stdio.h>
602 #include "gvarargs.h"
603 #include "config.h"
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #ifdef __STDC__
614 typedef void *PTR_T;
615 typedef const void *CPTR_T;
616 #define __proto(x) x
617 #else
618
619 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
620 typedef void *PTR_T;
621 typedef void *CPTR_T;
622
623 #else
624 typedef char *PTR_T; /* Ultrix 3.1 */
625 typedef char *CPTR_T;
626 #endif
627
628 #define __proto(x) ()
629 #define const
630 #endif
631
632 /* Do to size_t being defined in sys/types.h and different
633 in stddef.h, we have to do this by hand..... Note, these
634 types are correct for MIPS based systems, and may not be
635 correct for other systems. Ultrix 4.0 and Silicon Graphics
636 have this fixed, but since the following is correct, and
637 the fact that including stddef.h gets you GCC's version
638 instead of the standard one it's not worth it to fix it. */
639
640 #define Size_t unsigned int
641 #define Ptrdiff_t int
642
643 /* The following might be called from obstack or malloc,
644 so they can't be static. */
645
646 extern void pfatal_with_name
647 __proto((char *));
648 extern void fancy_abort __proto((void));
649 void botch __proto((const char *));
650 extern PTR_T xmalloc __proto((Size_t));
651 extern PTR_T xcalloc __proto((Size_t, Size_t));
652 extern PTR_T xrealloc __proto((PTR_T, Size_t));
653 extern void xfree __proto((PTR_T));
654
655 extern void fatal(); /* can't use prototypes here */
656 extern void error();
657
658 extern char *index ();
659 extern char *rindex ();
660 \f
661 #ifndef MIPS_DEBUGGING_INFO
662
663 static int line_number;
664 static int cur_line_start;
665 static int debug;
666 static int had_errors;
667 static char *progname;
668 static char *input_name;
669
670 int
671 main ()
672 {
673 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
674 exit (1);
675 }
676
677 #else /* MIPS_DEBUGGING defined */
678 \f
679
680 #include <sys/types.h>
681 #include <a.out.h>
682 #include <string.h>
683 #include <ctype.h>
684 #include <fcntl.h>
685 #include <errno.h>
686 #include <signal.h>
687 #include <sys/stat.h>
688
689 #if defined (USG) || defined (NO_STAB_H)
690 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
691 #else
692 #include <stab.h> /* On BSD, use the system's stab.h. */
693 #endif /* not USG */
694
695 #ifdef __GNU_STAB__
696 #define STAB_CODE_TYPE enum __stab_debug_code
697 #else
698 #define STAB_CODE_TYPE int
699 #endif
700
701 #ifdef _OSF_SOURCE
702 #define HAS_STDLIB_H
703 #define HAS_UNISTD_H
704 #endif
705
706 #ifdef HAS_STDLIB_H
707 #include <stdlib.h>
708 #endif
709
710 #ifdef HAS_UNISTD_H
711 #include <unistd.h>
712 #endif
713
714 #ifndef errno
715 extern int errno; /* MIPS errno.h doesn't declare this */
716 #endif
717
718 #ifndef MALLOC_CHECK
719 #ifdef __SABER__
720 #define MALLOC_CHECK
721 #endif
722 #endif
723
724 #define IS_ASM_IDENT(ch) \
725 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
726
727 \f
728 /* Redefinition of of storage classes as an enumeration for better
729 debugging. */
730
731 typedef enum sc {
732 sc_Nil = scNil, /* no storage class */
733 sc_Text = scText, /* text symbol */
734 sc_Data = scData, /* initialized data symbol */
735 sc_Bss = scBss, /* un-initialized data symbol */
736 sc_Register = scRegister, /* value of symbol is register number */
737 sc_Abs = scAbs, /* value of symbol is absolute */
738 sc_Undefined = scUndefined, /* who knows? */
739 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
740 sc_Bits = scBits, /* this is a bit field */
741 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
742 sc_RegImage = scRegImage, /* register value saved on stack */
743 sc_Info = scInfo, /* symbol contains debugger information */
744 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
745 sc_SData = scSData, /* load time only small data */
746 sc_SBss = scSBss, /* load time only small common */
747 sc_RData = scRData, /* load time only read only data */
748 sc_Var = scVar, /* Var parameter (fortran,pascal) */
749 sc_Common = scCommon, /* common variable */
750 sc_SCommon = scSCommon, /* small common */
751 sc_VarRegister = scVarRegister, /* Var parameter in a register */
752 sc_Variant = scVariant, /* Variant record */
753 sc_SUndefined = scSUndefined, /* small undefined(external) data */
754 sc_Init = scInit, /* .init section symbol */
755 sc_Max = scMax /* Max storage class+1 */
756 } sc_t;
757
758 /* Redefinition of symbol type. */
759
760 typedef enum st {
761 st_Nil = stNil, /* Nuthin' special */
762 st_Global = stGlobal, /* external symbol */
763 st_Static = stStatic, /* static */
764 st_Param = stParam, /* procedure argument */
765 st_Local = stLocal, /* local variable */
766 st_Label = stLabel, /* label */
767 st_Proc = stProc, /* " " Procedure */
768 st_Block = stBlock, /* beginning of block */
769 st_End = stEnd, /* end (of anything) */
770 st_Member = stMember, /* member (of anything - struct/union/enum */
771 st_Typedef = stTypedef, /* type definition */
772 st_File = stFile, /* file name */
773 st_RegReloc = stRegReloc, /* register relocation */
774 st_Forward = stForward, /* forwarding address */
775 st_StaticProc = stStaticProc, /* load time only static procs */
776 st_Constant = stConstant, /* const */
777 st_Str = stStr, /* string */
778 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
779 st_Expr = stExpr, /* 2+2 vs. 4 */
780 st_Type = stType, /* post-coercion SER */
781 st_Max = stMax /* max type+1 */
782 } st_t;
783
784 /* Redefinition of type qualifiers. */
785
786 typedef enum tq {
787 tq_Nil = tqNil, /* bt is what you see */
788 tq_Ptr = tqPtr, /* pointer */
789 tq_Proc = tqProc, /* procedure */
790 tq_Array = tqArray, /* duh */
791 tq_Far = tqFar, /* longer addressing - 8086/8 land */
792 tq_Vol = tqVol, /* volatile */
793 tq_Max = tqMax /* Max type qualifier+1 */
794 } tq_t;
795
796 /* Redefinition of basic types. */
797
798 typedef enum bt {
799 bt_Nil = btNil, /* undefined */
800 bt_Adr = btAdr, /* address - integer same size as pointer */
801 bt_Char = btChar, /* character */
802 bt_UChar = btUChar, /* unsigned character */
803 bt_Short = btShort, /* short */
804 bt_UShort = btUShort, /* unsigned short */
805 bt_Int = btInt, /* int */
806 bt_UInt = btUInt, /* unsigned int */
807 bt_Long = btLong, /* long */
808 bt_ULong = btULong, /* unsigned long */
809 bt_Float = btFloat, /* float (real) */
810 bt_Double = btDouble, /* Double (real) */
811 bt_Struct = btStruct, /* Structure (Record) */
812 bt_Union = btUnion, /* Union (variant) */
813 bt_Enum = btEnum, /* Enumerated */
814 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
815 bt_Range = btRange, /* subrange of int */
816 bt_Set = btSet, /* pascal sets */
817 bt_Complex = btComplex, /* fortran complex */
818 bt_DComplex = btDComplex, /* fortran double complex */
819 bt_Indirect = btIndirect, /* forward or unnamed typedef */
820 bt_FixedDec = btFixedDec, /* Fixed Decimal */
821 bt_FloatDec = btFloatDec, /* Float Decimal */
822 bt_String = btString, /* Varying Length Character String */
823 bt_Bit = btBit, /* Aligned Bit String */
824 bt_Picture = btPicture, /* Picture */
825
826 #ifdef btVoid
827 bt_Void = btVoid, /* Void */
828 #else
829 #define bt_Void bt_Nil
830 #endif
831
832 bt_Max = btMax /* Max basic type+1 */
833 } bt_t;
834
835 \f
836
837 /* Basic COFF storage classes. */
838 enum coff_storage {
839 C_EFCN = -1,
840 C_NULL = 0,
841 C_AUTO = 1,
842 C_EXT = 2,
843 C_STAT = 3,
844 C_REG = 4,
845 C_EXTDEF = 5,
846 C_LABEL = 6,
847 C_ULABEL = 7,
848 C_MOS = 8,
849 C_ARG = 9,
850 C_STRTAG = 10,
851 C_MOU = 11,
852 C_UNTAG = 12,
853 C_TPDEF = 13,
854 C_USTATIC = 14,
855 C_ENTAG = 15,
856 C_MOE = 16,
857 C_REGPARM = 17,
858 C_FIELD = 18,
859 C_BLOCK = 100,
860 C_FCN = 101,
861 C_EOS = 102,
862 C_FILE = 103,
863 C_LINE = 104,
864 C_ALIAS = 105,
865 C_HIDDEN = 106,
866 C_MAX = 107
867 } coff_storage_t;
868
869 /* Regular COFF fundamental type. */
870 typedef enum coff_type {
871 T_NULL = 0,
872 T_ARG = 1,
873 T_CHAR = 2,
874 T_SHORT = 3,
875 T_INT = 4,
876 T_LONG = 5,
877 T_FLOAT = 6,
878 T_DOUBLE = 7,
879 T_STRUCT = 8,
880 T_UNION = 9,
881 T_ENUM = 10,
882 T_MOE = 11,
883 T_UCHAR = 12,
884 T_USHORT = 13,
885 T_UINT = 14,
886 T_ULONG = 15,
887 T_MAX = 16
888 } coff_type_t;
889
890 /* Regular COFF derived types. */
891 typedef enum coff_dt {
892 DT_NON = 0,
893 DT_PTR = 1,
894 DT_FCN = 2,
895 DT_ARY = 3,
896 DT_MAX = 4
897 } coff_dt_t;
898
899 #define N_BTMASK 017 /* bitmask to isolate basic type */
900 #define N_TMASK 003 /* bitmask to isolate derived type */
901 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
902 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
903 #define N_TQ 6 /* # of type qualifiers */
904
905 /* States for whether to hash type or not. */
906 typedef enum hash_state {
907 hash_no = 0, /* don't hash type */
908 hash_yes = 1, /* ok to hash type, or use previous hash */
909 hash_record = 2 /* ok to record hash, but don't use prev. */
910 } hash_state_t;
911
912
913 /* Types of different sized allocation requests. */
914 enum alloc_type {
915 alloc_type_none, /* dummy value */
916 alloc_type_scope, /* nested scopes linked list */
917 alloc_type_vlinks, /* glue linking pages in varray */
918 alloc_type_shash, /* string hash element */
919 alloc_type_thash, /* type hash element */
920 alloc_type_tag, /* struct/union/tag element */
921 alloc_type_forward, /* element to hold unknown tag */
922 alloc_type_thead, /* head of type hash list */
923 alloc_type_varray, /* general varray allocation */
924 alloc_type_last /* last+1 element for array bounds */
925 };
926
927 \f
928 #define WORD_ALIGN(x) (((x) + 3) & ~3)
929 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
930
931
932 /* Structures to provide n-number of virtual arrays, each of which can
933 grow linearly, and which are written in the object file as sequential
934 pages. On systems with a BSD malloc that define USE_MALLOC, the
935 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
936 adds it's overhead, and rounds up to the next power of 2. Pages are
937 linked together via a linked list.
938
939 If PAGE_SIZE is > 4096, the string length in the shash_t structure
940 can't be represented (assuming there are strings > 4096 bytes). */
941
942 #ifndef PAGE_SIZE
943 #define PAGE_SIZE 4096 /* size of varray pages */
944 #endif
945
946 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
947
948
949 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
950 #ifndef USE_MALLOC /* in one memory request */
951 #define MAX_CLUSTER_PAGES 64
952 #else
953 #define MAX_CLUSTER_PAGES 63
954 #endif
955 #endif
956
957
958 /* Linked list connecting separate page allocations. */
959 typedef struct vlinks {
960 struct vlinks *prev; /* previous set of pages */
961 struct vlinks *next; /* next set of pages */
962 union page *datum; /* start of page */
963 unsigned long start_index; /* starting index # of page */
964 } vlinks_t;
965
966
967 /* Virtual array header. */
968 typedef struct varray {
969 vlinks_t *first; /* first page link */
970 vlinks_t *last; /* last page link */
971 unsigned long num_allocated; /* # objects allocated */
972 unsigned short object_size; /* size in bytes of each object */
973 unsigned short objects_per_page; /* # objects that can fit on a page */
974 unsigned short objects_last_page; /* # objects allocated on last page */
975 } varray_t;
976
977 #ifndef MALLOC_CHECK
978 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
979 #else
980 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
981 #endif
982
983 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
984 (vlinks_t *)0, /* first */ \
985 (vlinks_t *)0, /* last */ \
986 0, /* num_allocated */ \
987 sizeof (type), /* object_size */ \
988 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
989 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
990 }
991
992 /* Master type for indexes within the symbol table. */
993 typedef unsigned long symint_t;
994
995
996 /* Linked list support for nested scopes (file, block, structure, etc.). */
997 typedef struct scope {
998 struct scope *prev; /* previous scope level */
999 struct scope *free; /* free list pointer */
1000 SYMR *lsym; /* pointer to local symbol node */
1001 symint_t lnumber; /* lsym index */
1002 st_t type; /* type of the node */
1003 } scope_t;
1004
1005
1006 /* Forward reference list for tags referenced, but not yet defined. */
1007 typedef struct forward {
1008 struct forward *next; /* next forward reference */
1009 struct forward *free; /* free list pointer */
1010 AUXU *ifd_ptr; /* pointer to store file index */
1011 AUXU *index_ptr; /* pointer to store symbol index */
1012 AUXU *type_ptr; /* pointer to munge type info */
1013 } forward_t;
1014
1015
1016 /* Linked list support for tags. The first tag in the list is always
1017 the current tag for that block. */
1018 typedef struct tag {
1019 struct tag *free; /* free list pointer */
1020 struct shash *hash_ptr; /* pointer to the hash table head */
1021 struct tag *same_name; /* tag with same name in outer scope */
1022 struct tag *same_block; /* next tag defined in the same block. */
1023 struct forward *forward_ref; /* list of forward references */
1024 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1025 symint_t ifd; /* file # tag defined in */
1026 symint_t index; /* index within file's local symbols */
1027 } tag_t;
1028
1029
1030 /* Head of a block's linked list of tags. */
1031 typedef struct thead {
1032 struct thead *prev; /* previous block */
1033 struct thead *free; /* free list pointer */
1034 struct tag *first_tag; /* first tag in block defined */
1035 } thead_t;
1036
1037
1038 /* Union containing pointers to each the small structures which are freed up. */
1039 typedef union small_free {
1040 scope_t *f_scope; /* scope structure */
1041 thead_t *f_thead; /* tag head structure */
1042 tag_t *f_tag; /* tag element structure */
1043 forward_t *f_forward; /* forward tag reference */
1044 } small_free_t;
1045
1046
1047 /* String hash table support. The size of the hash table must fit
1048 within a page. */
1049
1050 #ifndef SHASH_SIZE
1051 #define SHASH_SIZE 1009
1052 #endif
1053
1054 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1055
1056 typedef struct shash {
1057 struct shash *next; /* next hash value */
1058 char *string; /* string we are hashing */
1059 symint_t len; /* string length */
1060 symint_t index; /* index within string table */
1061 EXTR *esym_ptr; /* global symbol pointer */
1062 SYMR *sym_ptr; /* local symbol pointer */
1063 SYMR *end_ptr; /* symbol pointer to end block */
1064 tag_t *tag_ptr; /* tag pointer */
1065 PDR *proc_ptr; /* procedure descriptor pointer */
1066 } shash_t;
1067
1068
1069 /* Type hash table support. The size of the hash table must fit
1070 within a page with the other extended file descriptor information.
1071 Because unique types which are hashed are fewer in number than
1072 strings, we use a smaller hash value. */
1073
1074 #ifndef THASH_SIZE
1075 #define THASH_SIZE 113
1076 #endif
1077
1078 typedef struct thash {
1079 struct thash *next; /* next hash value */
1080 AUXU type; /* type we are hashing */
1081 symint_t index; /* index within string table */
1082 } thash_t;
1083
1084
1085 /* Extended file descriptor that contains all of the support necessary
1086 to add things to each file separately. */
1087 typedef struct efdr {
1088 FDR fdr; /* File header to be written out */
1089 FDR *orig_fdr; /* original file header */
1090 char *name; /* filename */
1091 int name_len; /* length of the filename */
1092 symint_t void_type; /* aux. pointer to 'void' type */
1093 symint_t int_type; /* aux. pointer to 'int' type */
1094 scope_t *cur_scope; /* current nested scopes */
1095 symint_t file_index; /* current file number */
1096 int nested_scopes; /* # nested scopes */
1097 varray_t strings; /* local strings */
1098 varray_t symbols; /* local symbols */
1099 varray_t procs; /* procedures */
1100 varray_t aux_syms; /* auxiliary symbols */
1101 struct efdr *next_file; /* next file descriptor */
1102 /* string/type hash tables */
1103 shash_t **shash_head; /* string hash table */
1104 thash_t *thash_head[THASH_SIZE];
1105 } efdr_t;
1106
1107 /* Pre-initialized extended file structure. */
1108 static efdr_t init_file =
1109 {
1110 { /* FDR structure */
1111 0, /* adr: memory address of beginning of file */
1112 0, /* rss: file name (of source, if known) */
1113 0, /* issBase: file's string space */
1114 0, /* cbSs: number of bytes in the ss */
1115 0, /* isymBase: beginning of symbols */
1116 0, /* csym: count file's of symbols */
1117 0, /* ilineBase: file's line symbols */
1118 0, /* cline: count of file's line symbols */
1119 0, /* ioptBase: file's optimization entries */
1120 0, /* copt: count of file's optimization entries */
1121 0, /* ipdFirst: start of procedures for this file */
1122 0, /* cpd: count of procedures for this file */
1123 0, /* iauxBase: file's auxiliary entries */
1124 0, /* caux: count of file's auxiliary entries */
1125 0, /* rfdBase: index into the file indirect table */
1126 0, /* crfd: count file indirect entries */
1127 langC, /* lang: language for this file */
1128 1, /* fMerge: whether this file can be merged */
1129 0, /* fReadin: true if read in (not just created) */
1130 #if BYTES_BIG_ENDIAN
1131 1, /* fBigendian: if 1, compiled on big endian machine */
1132 #else
1133 0, /* fBigendian: if 1, compiled on big endian machine */
1134 #endif
1135 GLEVEL_2, /* glevel: level this file was compiled with */
1136 0, /* reserved: reserved for future use */
1137 0, /* cbLineOffset: byte offset from header for this file ln's */
1138 0, /* cbLine: size of lines for this file */
1139 },
1140
1141 (FDR *)0, /* orig_fdr: original file header pointer */
1142 (char *)0, /* name: pointer to filename */
1143 0, /* name_len: length of filename */
1144 0, /* void_type: ptr to aux node for void type */
1145 0, /* int_type: ptr to aux node for int type */
1146 (scope_t *)0, /* cur_scope: current scope being processed */
1147 0, /* file_index: current file # */
1148 0, /* nested_scopes: # nested scopes */
1149 INIT_VARRAY (char), /* strings: local string varray */
1150 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1151 INIT_VARRAY (PDR), /* procs: procedure varray */
1152 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1153
1154 (struct efdr *)0, /* next_file: next file structure */
1155
1156 (shash_t **)0, /* shash_head: string hash table */
1157 { 0 }, /* thash_head: type hash table */
1158 };
1159
1160
1161 static efdr_t *first_file; /* first file descriptor */
1162 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1163
1164
1165 /* Union of various things that are held in pages. */
1166 typedef union page {
1167 char byte [ PAGE_SIZE ];
1168 unsigned char ubyte [ PAGE_SIZE ];
1169 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1170 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1171 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1172 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1173 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1174 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1175 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1176 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1177 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1178 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1179 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1180 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1181 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1182 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1183 } page_t;
1184
1185
1186 /* Structure holding allocation information for small sized structures. */
1187 typedef struct alloc_info {
1188 char *alloc_name; /* name of this allocation type (must be first) */
1189 page_t *cur_page; /* current page being allocated from */
1190 small_free_t free_list; /* current free list if any */
1191 int unallocated; /* number of elements unallocated on page */
1192 int total_alloc; /* total number of allocations */
1193 int total_free; /* total number of frees */
1194 int total_pages; /* total number of pages allocated */
1195 } alloc_info_t;
1196
1197 /* Type information collected together. */
1198 typedef struct type_info {
1199 bt_t basic_type; /* basic type */
1200 coff_type_t orig_type; /* original COFF-based type */
1201 int num_tq; /* # type qualifiers */
1202 int num_dims; /* # dimensions */
1203 int num_sizes; /* # sizes */
1204 int extra_sizes; /* # extra sizes not tied with dims */
1205 tag_t * tag_ptr; /* tag pointer */
1206 int bitfield; /* symbol is a bitfield */
1207 int unknown_tag; /* this is an unknown tag */
1208 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1209 symint_t dimensions [N_TQ]; /* dimensions for each array */
1210 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1211 struct/union/enum + bitfield size */
1212 } type_info_t;
1213
1214 /* Pre-initialized type_info struct. */
1215 static type_info_t type_info_init = {
1216 bt_Nil, /* basic type */
1217 T_NULL, /* original COFF-based type */
1218 0, /* # type qualifiers */
1219 0, /* # dimensions */
1220 0, /* # sizes */
1221 0, /* sizes not tied with dims */
1222 NULL, /* ptr to tag */
1223 0, /* bitfield */
1224 0, /* unknown tag */
1225 { /* type qualifiers */
1226 tq_Nil,
1227 tq_Nil,
1228 tq_Nil,
1229 tq_Nil,
1230 tq_Nil,
1231 tq_Nil,
1232 },
1233 { /* dimensions */
1234 0,
1235 0,
1236 0,
1237 0,
1238 0,
1239 0
1240 },
1241 { /* sizes */
1242 0,
1243 0,
1244 0,
1245 0,
1246 0,
1247 0,
1248 0,
1249 0,
1250 },
1251 };
1252
1253
1254 /* Global virtual arrays & hash table for external strings as well as
1255 for the tags table and global tables for file descriptors, and
1256 dense numbers. */
1257
1258 static varray_t file_desc = INIT_VARRAY (efdr_t);
1259 static varray_t dense_num = INIT_VARRAY (DNR);
1260 static varray_t tag_strings = INIT_VARRAY (char);
1261 static varray_t ext_strings = INIT_VARRAY (char);
1262 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1263
1264 static shash_t *orig_str_hash[SHASH_SIZE];
1265 static shash_t *ext_str_hash [SHASH_SIZE];
1266 static shash_t *tag_hash [SHASH_SIZE];
1267
1268 /* Static types for int and void. Also, remember the last function's
1269 type (which is set up when we encounter the declaration for the
1270 function, and used when the end block for the function is emitted. */
1271
1272 static type_info_t int_type_info;
1273 static type_info_t void_type_info;
1274 static type_info_t last_func_type_info;
1275 static EXTR *last_func_eptr;
1276
1277
1278 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1279 really should use bt_Void, but this causes the current ecoff GDB to
1280 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1281 2.0) doesn't understand it, even though the compiler generates it.
1282 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1283 suite, but for now go with what works. */
1284
1285 static bt_t map_coff_types[ (int)T_MAX ] = {
1286 bt_Nil, /* T_NULL */
1287 bt_Nil, /* T_ARG */
1288 bt_Char, /* T_CHAR */
1289 bt_Short, /* T_SHORT */
1290 bt_Int, /* T_INT */
1291 bt_Long, /* T_LONG */
1292 bt_Float, /* T_FLOAT */
1293 bt_Double, /* T_DOUBLE */
1294 bt_Struct, /* T_STRUCT */
1295 bt_Union, /* T_UNION */
1296 bt_Enum, /* T_ENUM */
1297 bt_Enum, /* T_MOE */
1298 bt_UChar, /* T_UCHAR */
1299 bt_UShort, /* T_USHORT */
1300 bt_UInt, /* T_UINT */
1301 bt_ULong /* T_ULONG */
1302 };
1303
1304 /* Convert COFF storage class to ECOFF storage class. */
1305 static sc_t map_coff_storage[ (int)C_MAX ] = {
1306 sc_Nil, /* 0: C_NULL */
1307 sc_Abs, /* 1: C_AUTO auto var */
1308 sc_Undefined, /* 2: C_EXT external */
1309 sc_Data, /* 3: C_STAT static */
1310 sc_Register, /* 4: C_REG register */
1311 sc_Undefined, /* 5: C_EXTDEF ??? */
1312 sc_Text, /* 6: C_LABEL label */
1313 sc_Text, /* 7: C_ULABEL user label */
1314 sc_Info, /* 8: C_MOS member of struct */
1315 sc_Abs, /* 9: C_ARG argument */
1316 sc_Info, /* 10: C_STRTAG struct tag */
1317 sc_Info, /* 11: C_MOU member of union */
1318 sc_Info, /* 12: C_UNTAG union tag */
1319 sc_Info, /* 13: C_TPDEF typedef */
1320 sc_Data, /* 14: C_USTATIC ??? */
1321 sc_Info, /* 15: C_ENTAG enum tag */
1322 sc_Info, /* 16: C_MOE member of enum */
1323 sc_Register, /* 17: C_REGPARM register parameter */
1324 sc_Bits, /* 18; C_FIELD bitfield */
1325 sc_Nil, /* 19 */
1326 sc_Nil, /* 20 */
1327 sc_Nil, /* 21 */
1328 sc_Nil, /* 22 */
1329 sc_Nil, /* 23 */
1330 sc_Nil, /* 24 */
1331 sc_Nil, /* 25 */
1332 sc_Nil, /* 26 */
1333 sc_Nil, /* 27 */
1334 sc_Nil, /* 28 */
1335 sc_Nil, /* 29 */
1336 sc_Nil, /* 30 */
1337 sc_Nil, /* 31 */
1338 sc_Nil, /* 32 */
1339 sc_Nil, /* 33 */
1340 sc_Nil, /* 34 */
1341 sc_Nil, /* 35 */
1342 sc_Nil, /* 36 */
1343 sc_Nil, /* 37 */
1344 sc_Nil, /* 38 */
1345 sc_Nil, /* 39 */
1346 sc_Nil, /* 40 */
1347 sc_Nil, /* 41 */
1348 sc_Nil, /* 42 */
1349 sc_Nil, /* 43 */
1350 sc_Nil, /* 44 */
1351 sc_Nil, /* 45 */
1352 sc_Nil, /* 46 */
1353 sc_Nil, /* 47 */
1354 sc_Nil, /* 48 */
1355 sc_Nil, /* 49 */
1356 sc_Nil, /* 50 */
1357 sc_Nil, /* 51 */
1358 sc_Nil, /* 52 */
1359 sc_Nil, /* 53 */
1360 sc_Nil, /* 54 */
1361 sc_Nil, /* 55 */
1362 sc_Nil, /* 56 */
1363 sc_Nil, /* 57 */
1364 sc_Nil, /* 58 */
1365 sc_Nil, /* 59 */
1366 sc_Nil, /* 60 */
1367 sc_Nil, /* 61 */
1368 sc_Nil, /* 62 */
1369 sc_Nil, /* 63 */
1370 sc_Nil, /* 64 */
1371 sc_Nil, /* 65 */
1372 sc_Nil, /* 66 */
1373 sc_Nil, /* 67 */
1374 sc_Nil, /* 68 */
1375 sc_Nil, /* 69 */
1376 sc_Nil, /* 70 */
1377 sc_Nil, /* 71 */
1378 sc_Nil, /* 72 */
1379 sc_Nil, /* 73 */
1380 sc_Nil, /* 74 */
1381 sc_Nil, /* 75 */
1382 sc_Nil, /* 76 */
1383 sc_Nil, /* 77 */
1384 sc_Nil, /* 78 */
1385 sc_Nil, /* 79 */
1386 sc_Nil, /* 80 */
1387 sc_Nil, /* 81 */
1388 sc_Nil, /* 82 */
1389 sc_Nil, /* 83 */
1390 sc_Nil, /* 84 */
1391 sc_Nil, /* 85 */
1392 sc_Nil, /* 86 */
1393 sc_Nil, /* 87 */
1394 sc_Nil, /* 88 */
1395 sc_Nil, /* 89 */
1396 sc_Nil, /* 90 */
1397 sc_Nil, /* 91 */
1398 sc_Nil, /* 92 */
1399 sc_Nil, /* 93 */
1400 sc_Nil, /* 94 */
1401 sc_Nil, /* 95 */
1402 sc_Nil, /* 96 */
1403 sc_Nil, /* 97 */
1404 sc_Nil, /* 98 */
1405 sc_Nil, /* 99 */
1406 sc_Text, /* 100: C_BLOCK block start/end */
1407 sc_Text, /* 101: C_FCN function start/end */
1408 sc_Info, /* 102: C_EOS end of struct/union/enum */
1409 sc_Nil, /* 103: C_FILE file start */
1410 sc_Nil, /* 104: C_LINE line number */
1411 sc_Nil, /* 105: C_ALIAS combined type info */
1412 sc_Nil, /* 106: C_HIDDEN ??? */
1413 };
1414
1415 /* Convert COFF storage class to ECOFF symbol type. */
1416 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1417 st_Nil, /* 0: C_NULL */
1418 st_Local, /* 1: C_AUTO auto var */
1419 st_Global, /* 2: C_EXT external */
1420 st_Static, /* 3: C_STAT static */
1421 st_Local, /* 4: C_REG register */
1422 st_Global, /* 5: C_EXTDEF ??? */
1423 st_Label, /* 6: C_LABEL label */
1424 st_Label, /* 7: C_ULABEL user label */
1425 st_Member, /* 8: C_MOS member of struct */
1426 st_Param, /* 9: C_ARG argument */
1427 st_Block, /* 10: C_STRTAG struct tag */
1428 st_Member, /* 11: C_MOU member of union */
1429 st_Block, /* 12: C_UNTAG union tag */
1430 st_Typedef, /* 13: C_TPDEF typedef */
1431 st_Static, /* 14: C_USTATIC ??? */
1432 st_Block, /* 15: C_ENTAG enum tag */
1433 st_Member, /* 16: C_MOE member of enum */
1434 st_Param, /* 17: C_REGPARM register parameter */
1435 st_Member, /* 18; C_FIELD bitfield */
1436 st_Nil, /* 19 */
1437 st_Nil, /* 20 */
1438 st_Nil, /* 21 */
1439 st_Nil, /* 22 */
1440 st_Nil, /* 23 */
1441 st_Nil, /* 24 */
1442 st_Nil, /* 25 */
1443 st_Nil, /* 26 */
1444 st_Nil, /* 27 */
1445 st_Nil, /* 28 */
1446 st_Nil, /* 29 */
1447 st_Nil, /* 30 */
1448 st_Nil, /* 31 */
1449 st_Nil, /* 32 */
1450 st_Nil, /* 33 */
1451 st_Nil, /* 34 */
1452 st_Nil, /* 35 */
1453 st_Nil, /* 36 */
1454 st_Nil, /* 37 */
1455 st_Nil, /* 38 */
1456 st_Nil, /* 39 */
1457 st_Nil, /* 40 */
1458 st_Nil, /* 41 */
1459 st_Nil, /* 42 */
1460 st_Nil, /* 43 */
1461 st_Nil, /* 44 */
1462 st_Nil, /* 45 */
1463 st_Nil, /* 46 */
1464 st_Nil, /* 47 */
1465 st_Nil, /* 48 */
1466 st_Nil, /* 49 */
1467 st_Nil, /* 50 */
1468 st_Nil, /* 51 */
1469 st_Nil, /* 52 */
1470 st_Nil, /* 53 */
1471 st_Nil, /* 54 */
1472 st_Nil, /* 55 */
1473 st_Nil, /* 56 */
1474 st_Nil, /* 57 */
1475 st_Nil, /* 58 */
1476 st_Nil, /* 59 */
1477 st_Nil, /* 60 */
1478 st_Nil, /* 61 */
1479 st_Nil, /* 62 */
1480 st_Nil, /* 63 */
1481 st_Nil, /* 64 */
1482 st_Nil, /* 65 */
1483 st_Nil, /* 66 */
1484 st_Nil, /* 67 */
1485 st_Nil, /* 68 */
1486 st_Nil, /* 69 */
1487 st_Nil, /* 70 */
1488 st_Nil, /* 71 */
1489 st_Nil, /* 72 */
1490 st_Nil, /* 73 */
1491 st_Nil, /* 74 */
1492 st_Nil, /* 75 */
1493 st_Nil, /* 76 */
1494 st_Nil, /* 77 */
1495 st_Nil, /* 78 */
1496 st_Nil, /* 79 */
1497 st_Nil, /* 80 */
1498 st_Nil, /* 81 */
1499 st_Nil, /* 82 */
1500 st_Nil, /* 83 */
1501 st_Nil, /* 84 */
1502 st_Nil, /* 85 */
1503 st_Nil, /* 86 */
1504 st_Nil, /* 87 */
1505 st_Nil, /* 88 */
1506 st_Nil, /* 89 */
1507 st_Nil, /* 90 */
1508 st_Nil, /* 91 */
1509 st_Nil, /* 92 */
1510 st_Nil, /* 93 */
1511 st_Nil, /* 94 */
1512 st_Nil, /* 95 */
1513 st_Nil, /* 96 */
1514 st_Nil, /* 97 */
1515 st_Nil, /* 98 */
1516 st_Nil, /* 99 */
1517 st_Block, /* 100: C_BLOCK block start/end */
1518 st_Proc, /* 101: C_FCN function start/end */
1519 st_End, /* 102: C_EOS end of struct/union/enum */
1520 st_File, /* 103: C_FILE file start */
1521 st_Nil, /* 104: C_LINE line number */
1522 st_Nil, /* 105: C_ALIAS combined type info */
1523 st_Nil, /* 106: C_HIDDEN ??? */
1524 };
1525
1526 /* Map COFF derived types to ECOFF type qualifiers. */
1527 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1528 tq_Nil, /* 0: DT_NON no more qualifiers */
1529 tq_Ptr, /* 1: DT_PTR pointer */
1530 tq_Proc, /* 2: DT_FCN function */
1531 tq_Array, /* 3: DT_ARY array */
1532 };
1533
1534
1535 /* Keep track of different sized allocation requests. */
1536 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1537
1538 \f
1539 /* Pointers and such to the original symbol table that is read in. */
1540 static struct filehdr orig_file_header; /* global object file header */
1541
1542 static HDRR orig_sym_hdr; /* symbolic header on input */
1543 static char *orig_linenum; /* line numbers */
1544 static DNR *orig_dense; /* dense numbers */
1545 static PDR *orig_procs; /* procedures */
1546 static SYMR *orig_local_syms; /* local symbols */
1547 static OPTR *orig_opt_syms; /* optimization symbols */
1548 static AUXU *orig_aux_syms; /* auxiliary symbols */
1549 static char *orig_local_strs; /* local strings */
1550 static char *orig_ext_strs; /* external strings */
1551 static FDR *orig_files; /* file descriptors */
1552 static symint_t *orig_rfds; /* relative file desc's */
1553 static EXTR *orig_ext_syms; /* external symbols */
1554
1555 /* Macros to convert an index into a given object within the original
1556 symbol table. */
1557 #define CHECK(num,max,str) \
1558 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1559
1560 #define ORIG_LINENUM(index) (CHECK ((index), orig_sym_hdr.cbLine, "line#"), (index) + orig_linenum)
1561 #define ORIG_DENSE(index) (CHECK ((index), orig_sym_hdr.idnMax, "dense"), (index) + orig_dense)
1562 #define ORIG_PROCS(index) (CHECK ((index), orig_sym_hdr.ipdMax, "procs"), (index) + orig_procs)
1563 #define ORIG_FILES(index) (CHECK ((index), orig_sym_hdr.ifdMax, "funcs"), (index) + orig_files)
1564 #define ORIG_LSYMS(index) (CHECK ((index), orig_sym_hdr.isymMax, "lsyms"), (index) + orig_local_syms)
1565 #define ORIG_LSTRS(index) (CHECK ((index), orig_sym_hdr.issMax, "lstrs"), (index) + orig_local_strs)
1566 #define ORIG_ESYMS(index) (CHECK ((index), orig_sym_hdr.iextMax, "esyms"), (index) + orig_ext_syms)
1567 #define ORIG_ESTRS(index) (CHECK ((index), orig_sym_hdr.issExtMax, "estrs"), (index) + orig_ext_strs)
1568 #define ORIG_OPT(index) (CHECK ((index), orig_sym_hdr.ioptMax, "opt"), (index) + orig_opt_syms)
1569 #define ORIG_AUX(index) (CHECK ((index), orig_sym_hdr.iauxMax, "aux"), (index) + orig_aux_syms)
1570 #define ORIG_RFDS(index) (CHECK ((index), orig_sym_hdr.crfd, "rfds"), (index) + orig_rfds)
1571
1572 /* Various other statics. */
1573 static HDRR symbolic_header; /* symbolic header */
1574 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1575 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1576 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1577 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1578 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1579 static thead_t *cur_tag_head = (thead_t *)0; /* current tag head */
1580 static long file_offset = 0; /* current file offset */
1581 static long max_file_offset = 0; /* maximum file offset */
1582 static FILE *object_stream = (FILE *)0; /* file desc. to output .o */
1583 static FILE *obj_in_stream = (FILE *)0; /* file desc. to input .o */
1584 static char *progname = (char *)0; /* program name for errors */
1585 static char *input_name = "stdin"; /* name of input file */
1586 static char *object_name = (char *)0; /* tmp. name of object file */
1587 static char *obj_in_name = (char *)0; /* name of input object file */
1588 static char *cur_line_start = (char *)0; /* current line read in */
1589 static char *cur_line_ptr = (char *)0; /* ptr within current line */
1590 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1591 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1592 static long line_number = 0; /* current input line number */
1593 static int debug = 0; /* trace functions */
1594 static int version = 0; /* print version # */
1595 static int had_errors = 0; /* != 0 if errors were found */
1596 static int rename_output = 0; /* != 0 if rename output file*/
1597 static int delete_input = 0; /* != 0 if delete input after done */
1598 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1599
1600
1601 /* Pseudo symbol to use when putting stabs into the symbol table. */
1602 #ifndef STABS_SYMBOL
1603 #define STABS_SYMBOL "@stabs"
1604 #endif
1605
1606 static char stabs_symbol[] = STABS_SYMBOL;
1607
1608 \f
1609 /* Forward reference for functions. See the definition for more details. */
1610
1611 #ifndef STATIC
1612 #define STATIC static
1613 #endif
1614
1615 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1616
1617 STATIC shash_t *hash_string __proto((const char *,
1618 Ptrdiff_t,
1619 shash_t **,
1620 symint_t *));
1621
1622 STATIC symint_t add_string __proto((varray_t *,
1623 shash_t **,
1624 const char *,
1625 const char *,
1626 shash_t **));
1627
1628 STATIC symint_t add_local_symbol
1629 __proto((const char *,
1630 const char *,
1631 st_t,
1632 sc_t,
1633 symint_t,
1634 symint_t));
1635
1636 STATIC symint_t add_ext_symbol __proto((const char *,
1637 const char *,
1638 st_t,
1639 sc_t,
1640 long,
1641 symint_t,
1642 int));
1643
1644 STATIC symint_t add_aux_sym_symint
1645 __proto((symint_t));
1646
1647 STATIC symint_t add_aux_sym_rndx
1648 __proto((int, symint_t));
1649
1650 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1651 hash_state_t,
1652 thash_t **));
1653
1654 STATIC tag_t * get_tag __proto((const char *,
1655 const char *,
1656 symint_t,
1657 bt_t));
1658
1659 STATIC void add_unknown_tag __proto((tag_t *));
1660
1661 STATIC void add_procedure __proto((const char *,
1662 const char *));
1663
1664 STATIC void add_file __proto((const char *,
1665 const char *));
1666
1667 STATIC void add_bytes __proto((varray_t *,
1668 char *,
1669 Size_t));
1670
1671 STATIC void add_varray_page __proto((varray_t *));
1672
1673 STATIC void update_headers __proto((void));
1674
1675 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1676 STATIC void write_object __proto((void));
1677 STATIC char *st_to_string __proto((st_t));
1678 STATIC char *sc_to_string __proto((sc_t));
1679 STATIC char *read_line __proto((void));
1680 STATIC void parse_input __proto((void));
1681 STATIC void mark_stabs __proto((const char *));
1682 STATIC void parse_begin __proto((const char *));
1683 STATIC void parse_bend __proto((const char *));
1684 STATIC void parse_def __proto((const char *));
1685 STATIC void parse_end __proto((const char *));
1686 STATIC void parse_ent __proto((const char *));
1687 STATIC void parse_file __proto((const char *));
1688 STATIC void parse_stabs_common
1689 __proto((const char *, const char *, const char *));
1690 STATIC void parse_stabs __proto((const char *));
1691 STATIC void parse_stabn __proto((const char *));
1692 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1693 STATIC void copy_object __proto((void));
1694
1695 STATIC void catch_signal __proto((int));
1696 STATIC page_t *allocate_page __proto((void));
1697
1698 STATIC page_t *allocate_multiple_pages
1699 __proto((Size_t));
1700
1701 STATIC void free_multiple_pages
1702 __proto((page_t *, Size_t));
1703
1704 #ifndef MALLOC_CHECK
1705 STATIC page_t *allocate_cluster
1706 __proto((Size_t));
1707 #endif
1708
1709 STATIC forward_t *allocate_forward __proto((void));
1710 STATIC scope_t *allocate_scope __proto((void));
1711 STATIC shash_t *allocate_shash __proto((void));
1712 STATIC tag_t *allocate_tag __proto((void));
1713 STATIC thash_t *allocate_thash __proto((void));
1714 STATIC thead_t *allocate_thead __proto((void));
1715 STATIC vlinks_t *allocate_vlinks __proto((void));
1716
1717 STATIC void free_forward __proto((forward_t *));
1718 STATIC void free_scope __proto((scope_t *));
1719 STATIC void free_tag __proto((tag_t *));
1720 STATIC void free_thead __proto((thead_t *));
1721
1722 extern char *sbrk __proto((int));
1723 extern PTR_T malloc __proto((Size_t));
1724 extern PTR_T calloc __proto((Size_t, Size_t));
1725 extern PTR_T realloc __proto((PTR_T, Size_t));
1726 extern void free __proto((PTR_T));
1727 extern char *mktemp __proto((char *));
1728 extern long strtol __proto((const char *, char **, int));
1729
1730 extern char *optarg;
1731 extern int optind;
1732 extern int opterr;
1733 extern char *version_string;
1734 extern char *sys_siglist[NSIG + 1];
1735
1736 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1737 #define SEEK_SET 0 /* Set file pointer to offset */
1738 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1739 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1740 #endif
1741
1742 \f
1743 /* List of assembler pseudo ops and beginning sequences that need
1744 special actions. Someday, this should be a hash table, and such,
1745 but for now a linear list of names and calls to memcmp will
1746 do...... */
1747
1748 typedef struct _pseudo_ops {
1749 const char *name; /* pseudo-op in ascii */
1750 int len; /* length of name to compare */
1751 void (*func) __proto((const char *)); /* function to handle line */
1752 } pseudo_ops_t;
1753
1754 static pseudo_ops_t pseudo_ops[] = {
1755 { "#.def", sizeof("#.def")-1, parse_def },
1756 { "#.begin", sizeof("#.begin")-1, parse_begin },
1757 { "#.bend", sizeof("#.bend")-1, parse_bend },
1758 { ".end", sizeof(".end")-1, parse_end },
1759 { ".ent", sizeof(".ent")-1, parse_ent },
1760 { ".file", sizeof(".file")-1, parse_file },
1761 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1762 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1763 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1764 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1765 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1766 };
1767
1768 \f
1769 /* Add a page to a varray object. */
1770
1771 STATIC void
1772 add_varray_page (vp)
1773 varray_t *vp; /* varray to add page to */
1774 {
1775 vlinks_t *new_links = allocate_vlinks ();
1776
1777 #ifdef MALLOC_CHECK
1778 if (vp->object_size > 1)
1779 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1780 else
1781 #endif
1782 new_links->datum = allocate_page ();
1783
1784 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1785 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1786
1787 new_links->start_index = vp->num_allocated;
1788 vp->objects_last_page = 0;
1789
1790 if (vp->first == (vlinks_t *)0) /* first allocation? */
1791 vp->first = vp->last = new_links;
1792 else
1793 { /* 2nd or greater allocation */
1794 new_links->prev = vp->last;
1795 vp->last->next = new_links;
1796 vp->last = new_links;
1797 }
1798 }
1799
1800 \f
1801 /* Compute hash code (from tree.c) */
1802
1803 #define HASHBITS 30
1804
1805 STATIC shash_t *
1806 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1807 const char *text; /* ptr to text to hash */
1808 Ptrdiff_t hash_len; /* length of the text */
1809 shash_t **hash_tbl; /* hash table */
1810 symint_t *ret_hash_index; /* ptr to store hash index */
1811 {
1812 register unsigned long hi;
1813 register Ptrdiff_t i;
1814 register shash_t *ptr;
1815 register int first_ch = *text;
1816
1817 hi = hash_len;
1818 for (i = 0; i < hash_len; i++)
1819 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1820
1821 hi &= (1 << HASHBITS) - 1;
1822 hi %= SHASH_SIZE;
1823
1824 if (ret_hash_index != (symint_t *)0)
1825 *ret_hash_index = hi;
1826
1827 for (ptr = hash_tbl[hi]; ptr != (shash_t *)0; ptr = ptr->next)
1828 if (hash_len == ptr->len
1829 && first_ch == ptr->string[0]
1830 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1831 break;
1832
1833 return ptr;
1834 }
1835
1836 \f
1837 /* Add a string (and null pad) to one of the string tables. A
1838 consequence of hashing strings, is that we don't let strings
1839 cross page boundaries. The extra nulls will be ignored. */
1840
1841 STATIC symint_t
1842 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1843 varray_t *vp; /* string virtual array */
1844 shash_t **hash_tbl; /* ptr to hash table */
1845 const char *start; /* 1st byte in string */
1846 const char *end_p1; /* 1st byte after string */
1847 shash_t **ret_hash; /* return hash pointer */
1848 {
1849 register Ptrdiff_t len = end_p1 - start;
1850 register shash_t *hash_ptr;
1851 symint_t hi;
1852
1853 if (len >= PAGE_USIZE)
1854 fatal ("String too big (%ld bytes)", (long) len);
1855
1856 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1857 if (hash_ptr == (shash_t *)0)
1858 {
1859 register char *p;
1860
1861 if (vp->objects_last_page + len >= PAGE_USIZE)
1862 {
1863 vp->num_allocated =
1864 ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1865 add_varray_page (vp);
1866 }
1867
1868 hash_ptr = allocate_shash ();
1869 hash_ptr->next = hash_tbl[hi];
1870 hash_tbl[hi] = hash_ptr;
1871
1872 hash_ptr->len = len;
1873 hash_ptr->index = vp->num_allocated;
1874 hash_ptr->string = p =
1875 & vp->last->datum->byte[ vp->objects_last_page ];
1876
1877 vp->objects_last_page += len+1;
1878 vp->num_allocated += len+1;
1879
1880 while (len-- > 0)
1881 *p++ = *start++;
1882
1883 *p = '\0';
1884 }
1885
1886 if (ret_hash != (shash_t **)0)
1887 *ret_hash = hash_ptr;
1888
1889 return hash_ptr->index;
1890 }
1891
1892 \f
1893 /* Add a local symbol. */
1894
1895 STATIC symint_t
1896 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1897 const char *str_start; /* first byte in string */
1898 const char *str_end_p1; /* first byte after string */
1899 st_t type; /* symbol type */
1900 sc_t storage; /* storage class */
1901 symint_t value; /* value of symbol */
1902 symint_t indx; /* index to local/aux. syms */
1903 {
1904 register symint_t ret;
1905 register SYMR *psym;
1906 register scope_t *pscope;
1907 register thead_t *ptag_head;
1908 register tag_t *ptag;
1909 register tag_t *ptag_next;
1910 register varray_t *vp = &cur_file_ptr->symbols;
1911 register int scope_delta = 0;
1912 shash_t *hash_ptr = (shash_t *)0;
1913
1914 if (vp->objects_last_page == vp->objects_per_page)
1915 add_varray_page (vp);
1916
1917 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1918
1919 psym->value = value;
1920 psym->st = (unsigned) type;
1921 psym->sc = (unsigned) storage;
1922 psym->index = indx;
1923 psym->iss = (str_start == (const char *)0)
1924 ? 0
1925 : add_string (&cur_file_ptr->strings,
1926 &cur_file_ptr->shash_head[0],
1927 str_start,
1928 str_end_p1,
1929 &hash_ptr);
1930
1931 ret = vp->num_allocated++;
1932
1933 if (MIPS_IS_STAB(psym))
1934 return ret;
1935
1936 /* Save the symbol within the hash table if this is a static
1937 item, and it has a name. */
1938 if (hash_ptr != (shash_t *)0
1939 && (type == st_Global || type == st_Static || type == st_Label
1940 || type == st_Proc || type == st_StaticProc))
1941 hash_ptr->sym_ptr = psym;
1942
1943 /* push or pop a scope if appropriate. */
1944 switch (type)
1945 {
1946 default:
1947 break;
1948
1949 case st_File: /* beginning of file */
1950 case st_Proc: /* procedure */
1951 case st_StaticProc: /* static procedure */
1952 case st_Block: /* begin scope */
1953 pscope = allocate_scope ();
1954 pscope->prev = cur_file_ptr->cur_scope;
1955 pscope->lsym = psym;
1956 pscope->lnumber = ret;
1957 pscope->type = type;
1958 cur_file_ptr->cur_scope = pscope;
1959
1960 if (type != st_File)
1961 scope_delta = 1;
1962
1963 /* For every block type except file, struct, union, or
1964 enumeration blocks, push a level on the tag stack. We omit
1965 file types, so that tags can span file boundaries. */
1966 if (type != st_File && storage != sc_Info)
1967 {
1968 ptag_head = allocate_thead ();
1969 ptag_head->first_tag = 0;
1970 ptag_head->prev = cur_tag_head;
1971 cur_tag_head = ptag_head;
1972 }
1973 break;
1974
1975 case st_End:
1976 pscope = cur_file_ptr->cur_scope;
1977 if (pscope == (scope_t *)0)
1978 error ("internal error, too many st_End's");
1979
1980 else
1981 {
1982 st_t begin_type = (st_t) pscope->lsym->st;
1983
1984 if (begin_type != st_File)
1985 scope_delta = -1;
1986
1987 /* Except for file, structure, union, or enumeration end
1988 blocks remove all tags created within this scope. */
1989 if (begin_type != st_File && storage != sc_Info)
1990 {
1991 ptag_head = cur_tag_head;
1992 cur_tag_head = ptag_head->prev;
1993
1994 for (ptag = ptag_head->first_tag;
1995 ptag != (tag_t *)0;
1996 ptag = ptag_next)
1997 {
1998 if (ptag->forward_ref != (forward_t *)0)
1999 add_unknown_tag (ptag);
2000
2001 ptag_next = ptag->same_block;
2002 ptag->hash_ptr->tag_ptr = ptag->same_name;
2003 free_tag (ptag);
2004 }
2005
2006 free_thead (ptag_head);
2007 }
2008
2009 cur_file_ptr->cur_scope = pscope->prev;
2010 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2011
2012 if (storage != sc_Info)
2013 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2014
2015 if (begin_type == st_File || begin_type == st_Block)
2016 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2017
2018 /* Functions push two or more aux words as follows:
2019 1st word: index+1 of the end symbol
2020 2nd word: type of the function (plus any aux words needed).
2021 Also, tie the external pointer back to the function begin symbol. */
2022 else
2023 {
2024 symint_t type;
2025 pscope->lsym->index = add_aux_sym_symint (ret+1);
2026 type = add_aux_sym_tir (&last_func_type_info,
2027 hash_no,
2028 &cur_file_ptr->thash_head[0]);
2029 if (last_func_eptr)
2030 {
2031 last_func_eptr->ifd = cur_file_ptr->file_index;
2032 last_func_eptr->asym.index = type;
2033 }
2034 }
2035
2036 free_scope (pscope);
2037 }
2038 }
2039
2040 cur_file_ptr->nested_scopes += scope_delta;
2041
2042 if (debug && type != st_File
2043 && (debug > 2 || type == st_Block || type == st_End
2044 || type == st_Proc || type == st_StaticProc))
2045 {
2046 char *sc_str = sc_to_string (storage);
2047 char *st_str = st_to_string (type);
2048 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2049
2050 fprintf (stderr,
2051 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2052 value, depth, sc_str);
2053
2054 if (str_start && str_end_p1 - str_start > 0)
2055 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2056 else
2057 {
2058 Size_t len = strlen (st_str);
2059 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2060 }
2061 }
2062
2063 return ret;
2064 }
2065
2066 \f
2067 /* Add an external symbol. */
2068
2069 STATIC symint_t
2070 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2071 const char *str_start; /* first byte in string */
2072 const char *str_end_p1; /* first byte after string */
2073 st_t type; /* symbol type */
2074 sc_t storage; /* storage class */
2075 long value; /* value of symbol */
2076 symint_t indx; /* index to local/aux. syms */
2077 int ifd; /* file index */
2078 {
2079 register EXTR *psym;
2080 register varray_t *vp = &ext_symbols;
2081 shash_t *hash_ptr = (shash_t *)0;
2082
2083 if (debug > 1)
2084 {
2085 char *sc_str = sc_to_string (storage);
2086 char *st_str = st_to_string (type);
2087
2088 fprintf (stderr,
2089 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2090 value, ifd, sc_str);
2091
2092 if (str_start && str_end_p1 - str_start > 0)
2093 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2094 else
2095 fprintf (stderr, " st= %s\n", st_str);
2096 }
2097
2098 if (vp->objects_last_page == vp->objects_per_page)
2099 add_varray_page (vp);
2100
2101 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2102
2103 psym->ifd = ifd;
2104 psym->asym.value = value;
2105 psym->asym.st = (unsigned) type;
2106 psym->asym.sc = (unsigned) storage;
2107 psym->asym.index = indx;
2108 psym->asym.iss = (str_start == (const char *)0)
2109 ? 0
2110 : add_string (&ext_strings,
2111 &ext_str_hash[0],
2112 str_start,
2113 str_end_p1,
2114 &hash_ptr);
2115
2116 hash_ptr->esym_ptr = psym;
2117 return vp->num_allocated++;
2118 }
2119
2120 \f
2121 /* Add an auxiliary symbol (passing a symint). */
2122
2123 STATIC symint_t
2124 add_aux_sym_symint (aux_word)
2125 symint_t aux_word; /* auxiliary information word */
2126 {
2127 register AUXU *aux_ptr;
2128 register efdr_t *file_ptr = cur_file_ptr;
2129 register varray_t *vp = &file_ptr->aux_syms;
2130
2131 if (vp->objects_last_page == vp->objects_per_page)
2132 add_varray_page (vp);
2133
2134 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2135 aux_ptr->isym = aux_word;
2136
2137 return vp->num_allocated++;
2138 }
2139
2140
2141 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2142
2143 STATIC symint_t
2144 add_aux_sym_rndx (file_index, sym_index)
2145 int file_index;
2146 symint_t sym_index;
2147 {
2148 register AUXU *aux_ptr;
2149 register efdr_t *file_ptr = cur_file_ptr;
2150 register varray_t *vp = &file_ptr->aux_syms;
2151
2152 if (vp->objects_last_page == vp->objects_per_page)
2153 add_varray_page (vp);
2154
2155 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2156 aux_ptr->rndx.rfd = file_index;
2157 aux_ptr->rndx.index = sym_index;
2158
2159 return vp->num_allocated++;
2160 }
2161
2162 \f
2163 /* Add an auxiliary symbol (passing the basic type and possibly
2164 type qualifiers). */
2165
2166 STATIC symint_t
2167 add_aux_sym_tir (t, state, hash_tbl)
2168 type_info_t *t; /* current type information */
2169 hash_state_t state; /* whether to hash type or not */
2170 thash_t **hash_tbl; /* pointer to hash table to use */
2171 {
2172 register AUXU *aux_ptr;
2173 register efdr_t *file_ptr = cur_file_ptr;
2174 register varray_t *vp = &file_ptr->aux_syms;
2175 static AUXU init_aux;
2176 symint_t ret;
2177 int i;
2178 AUXU aux;
2179
2180 aux = init_aux;
2181 aux.ti.bt = (int) t->basic_type;
2182 aux.ti.continued = 0;
2183 aux.ti.fBitfield = t->bitfield;
2184
2185 aux.ti.tq0 = (int) t->type_qualifiers[0];
2186 aux.ti.tq1 = (int) t->type_qualifiers[1];
2187 aux.ti.tq2 = (int) t->type_qualifiers[2];
2188 aux.ti.tq3 = (int) t->type_qualifiers[3];
2189 aux.ti.tq4 = (int) t->type_qualifiers[4];
2190 aux.ti.tq5 = (int) t->type_qualifiers[5];
2191
2192
2193 /* For anything that adds additional information, we must not hash,
2194 so check here, and reset our state. */
2195
2196 if (state != hash_no
2197 && (t->type_qualifiers[0] == tq_Array
2198 || t->type_qualifiers[1] == tq_Array
2199 || t->type_qualifiers[2] == tq_Array
2200 || t->type_qualifiers[3] == tq_Array
2201 || t->type_qualifiers[4] == tq_Array
2202 || t->type_qualifiers[5] == tq_Array
2203 || t->basic_type == bt_Struct
2204 || t->basic_type == bt_Union
2205 || t->basic_type == bt_Enum
2206 || t->bitfield
2207 || t->num_dims > 0))
2208 state = hash_no;
2209
2210 /* See if we can hash this type, and save some space, but some types
2211 can't be hashed (because they contain arrays or continuations),
2212 and others can be put into the hash list, but cannot use existing
2213 types because other aux entries precede this one. */
2214
2215 if (state != hash_no)
2216 {
2217 register thash_t *hash_ptr;
2218 register symint_t hi;
2219
2220 hi = aux.isym & ((1 << HASHBITS) - 1);
2221 hi %= THASH_SIZE;
2222
2223 for (hash_ptr = hash_tbl[hi];
2224 hash_ptr != (thash_t *)0;
2225 hash_ptr = hash_ptr->next)
2226 {
2227 if (aux.isym == hash_ptr->type.isym)
2228 break;
2229 }
2230
2231 if (hash_ptr != (thash_t *)0 && state == hash_yes)
2232 return hash_ptr->index;
2233
2234 if (hash_ptr == (thash_t *)0)
2235 {
2236 hash_ptr = allocate_thash ();
2237 hash_ptr->next = hash_tbl[hi];
2238 hash_ptr->type = aux;
2239 hash_ptr->index = vp->num_allocated;
2240 hash_tbl[hi] = hash_ptr;
2241 }
2242 }
2243
2244 /* Everything is set up, add the aux symbol. */
2245 if (vp->objects_last_page == vp->objects_per_page)
2246 add_varray_page (vp);
2247
2248 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2249 *aux_ptr = aux;
2250
2251 ret = vp->num_allocated++;
2252
2253 /* Add bitfield length if it exists.
2254
2255 NOTE: Mips documentation claims bitfield goes at the end of the
2256 AUX record, but the DECstation compiler emits it here.
2257 (This would only make a difference for enum bitfields.)
2258
2259 Also note: We use the last size given since gcc may emit 2
2260 for an enum bitfield. */
2261
2262 if (t->bitfield)
2263 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2264
2265
2266 /* Add tag information if needed. Structure, union, and enum
2267 references add 2 aux symbols: a [file index, symbol index]
2268 pointer to the structure type, and the current file index. */
2269
2270 if (t->basic_type == bt_Struct
2271 || t->basic_type == bt_Union
2272 || t->basic_type == bt_Enum)
2273 {
2274 register symint_t file_index = t->tag_ptr->ifd;
2275 register symint_t sym_index = t->tag_ptr->index;
2276
2277 if (t->unknown_tag)
2278 {
2279 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2280 (void) add_aux_sym_symint ((symint_t)-1);
2281 }
2282 else if (sym_index != indexNil)
2283 {
2284 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2285 (void) add_aux_sym_symint (file_index);
2286 }
2287 else
2288 {
2289 register forward_t *forward_ref = allocate_forward ();
2290
2291 forward_ref->type_ptr = aux_ptr;
2292 forward_ref->next = t->tag_ptr->forward_ref;
2293 t->tag_ptr->forward_ref = forward_ref;
2294
2295 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2296 forward_ref->index_ptr
2297 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2298
2299 (void) add_aux_sym_symint (file_index);
2300 forward_ref->ifd_ptr
2301 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2302 }
2303 }
2304
2305 /* Add information about array bounds if they exist. */
2306 for (i = 0; i < t->num_dims; i++)
2307 {
2308 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2309 cur_file_ptr->int_type);
2310
2311 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2312 (void) add_aux_sym_symint ((symint_t)0); /* low bound */
2313 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2314 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2315 ? 0
2316 : (t->sizes[i] * 8) / t->dimensions[i]);
2317 };
2318
2319 /* NOTE: Mips documentation claism that the bitfield width goes here.
2320 But it needs to be emitted earlier. */
2321
2322 return ret;
2323 }
2324
2325 \f
2326 /* Add a tag to the tag table (unless it already exists). */
2327
2328 STATIC tag_t *
2329 get_tag (tag_start, tag_end_p1, index, basic_type)
2330 const char *tag_start; /* 1st byte of tag name */
2331 const char *tag_end_p1; /* 1st byte after tag name */
2332 symint_t index; /* index of tag start block */
2333 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2334 {
2335 shash_t *hash_ptr;
2336 tag_t *tag_ptr;
2337 hash_ptr = hash_string (tag_start,
2338 tag_end_p1 - tag_start,
2339 &tag_hash[0],
2340 (symint_t *)0);
2341
2342 if (hash_ptr != (shash_t *)0
2343 && hash_ptr->tag_ptr != (tag_t *)0)
2344 {
2345 tag_ptr = hash_ptr->tag_ptr;
2346 if (index != indexNil)
2347 {
2348 tag_ptr->basic_type = basic_type;
2349 tag_ptr->ifd = cur_file_ptr->file_index;
2350 tag_ptr->index = index;
2351 }
2352 return tag_ptr;
2353 }
2354
2355 (void) add_string (&tag_strings,
2356 &tag_hash[0],
2357 tag_start,
2358 tag_end_p1,
2359 &hash_ptr);
2360
2361 tag_ptr = allocate_tag ();
2362 tag_ptr->forward_ref = (forward_t *) 0;
2363 tag_ptr->hash_ptr = hash_ptr;
2364 tag_ptr->same_name = hash_ptr->tag_ptr;
2365 tag_ptr->basic_type = basic_type;
2366 tag_ptr->index = index;
2367 tag_ptr->ifd = (index == indexNil) ? -1 : cur_file_ptr->file_index;
2368 tag_ptr->same_block = cur_tag_head->first_tag;
2369
2370 cur_tag_head->first_tag = tag_ptr;
2371 hash_ptr->tag_ptr = tag_ptr;
2372
2373 return tag_ptr;
2374 }
2375
2376 \f
2377 /* Add an unknown {struct, union, enum} tag. */
2378
2379 STATIC void
2380 add_unknown_tag (ptag)
2381 tag_t *ptag; /* pointer to tag information */
2382 {
2383 shash_t *hash_ptr = ptag->hash_ptr;
2384 char *name_start = hash_ptr->string;
2385 char *name_end_p1 = name_start + hash_ptr->len;
2386 forward_t *f_next = ptag->forward_ref;
2387 forward_t *f_cur;
2388 int sym_index;
2389 int file_index = cur_file_ptr->file_index;
2390
2391 if (debug > 1)
2392 {
2393 char *agg_type = "{unknown aggregate type}";
2394 switch (ptag->basic_type)
2395 {
2396 case bt_Struct: agg_type = "struct"; break;
2397 case bt_Union: agg_type = "union"; break;
2398 case bt_Enum: agg_type = "enum"; break;
2399 default: break;
2400 }
2401
2402 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2403 hash_ptr->len, name_start);
2404 }
2405
2406 sym_index = add_local_symbol (name_start,
2407 name_end_p1,
2408 st_Block,
2409 sc_Info,
2410 (symint_t)0,
2411 (symint_t)0);
2412
2413 (void) add_local_symbol (name_start,
2414 name_end_p1,
2415 st_End,
2416 sc_Info,
2417 (symint_t)0,
2418 (symint_t)0);
2419
2420 while (f_next != (forward_t *)0)
2421 {
2422 f_cur = f_next;
2423 f_next = f_next->next;
2424
2425 f_cur->ifd_ptr->isym = file_index;
2426 f_cur->index_ptr->rndx.index = sym_index;
2427
2428 free_forward (f_cur);
2429 }
2430
2431 return;
2432 }
2433
2434 \f
2435 /* Add a procedure to the current file's list of procedures, and record
2436 this is the current procedure. If the assembler created a PDR for
2437 this procedure, use that to initialize the current PDR. */
2438
2439 STATIC void
2440 add_procedure (func_start, func_end_p1)
2441 const char *func_start; /* 1st byte of func name */
2442 const char *func_end_p1; /* 1st byte after func name */
2443 {
2444 register PDR *new_proc_ptr;
2445 register efdr_t *file_ptr = cur_file_ptr;
2446 register varray_t *vp = &file_ptr->procs;
2447 register symint_t value = 0;
2448 register st_t proc_type = st_Proc;
2449 register shash_t *shash_ptr = hash_string (func_start,
2450 func_end_p1 - func_start,
2451 &orig_str_hash[0],
2452 (symint_t *)0);
2453
2454 if (debug)
2455 fputc ('\n', stderr);
2456
2457 if (vp->objects_last_page == vp->objects_per_page)
2458 add_varray_page (vp);
2459
2460 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2461
2462 vp->num_allocated++;
2463
2464
2465 /* Did the assembler create this procedure? If so, get the PDR information. */
2466 cur_oproc_ptr = (PDR *)0;
2467 if (shash_ptr != (shash_t *)0)
2468 {
2469 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2470 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2471
2472 if (old_proc_ptr != (PDR *)0
2473 && sym_ptr != (SYMR *)0
2474 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2475 {
2476 cur_oproc_begin = sym_ptr;
2477 cur_oproc_end = shash_ptr->end_ptr;
2478 value = sym_ptr->value;
2479
2480 cur_oproc_ptr = old_proc_ptr;
2481 proc_type = (st_t)sym_ptr->st;
2482 *new_proc_ptr = *old_proc_ptr; /* initialize */
2483 }
2484 }
2485
2486 if (cur_oproc_ptr == (PDR *)0)
2487 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2488
2489 /* Determine the start of symbols. */
2490 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2491
2492 /* Push the start of the function. */
2493 (void) add_local_symbol (func_start, func_end_p1,
2494 proc_type, sc_Text,
2495 value,
2496 (symint_t)0);
2497 }
2498
2499 \f
2500 /* Add a new filename, and set up all of the file relative
2501 virtual arrays (strings, symbols, aux syms, etc.). Record
2502 where the current file structure lives. */
2503
2504 STATIC void
2505 add_file (file_start, file_end_p1)
2506 const char *file_start; /* first byte in string */
2507 const char *file_end_p1; /* first byte after string */
2508 {
2509 static char zero_bytes[2] = { '\0', '\0' };
2510
2511 register Ptrdiff_t len = file_end_p1 - file_start;
2512 register int first_ch = *file_start;
2513 register efdr_t *file_ptr;
2514
2515 if (debug)
2516 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2517
2518 /* See if the file has already been created. */
2519 for (file_ptr = first_file;
2520 file_ptr != (efdr_t *)0;
2521 file_ptr = file_ptr->next_file)
2522 {
2523 if (first_ch == file_ptr->name[0]
2524 && file_ptr->name[len] == '\0'
2525 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2526 {
2527 cur_file_ptr = file_ptr;
2528 break;
2529 }
2530 }
2531
2532 /* If this is a new file, create it. */
2533 if (file_ptr == (efdr_t *)0)
2534 {
2535 if (file_desc.objects_last_page == file_desc.objects_per_page)
2536 add_varray_page (&file_desc);
2537
2538 file_ptr = cur_file_ptr =
2539 &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2540 *file_ptr = init_file;
2541
2542 file_ptr->file_index = file_desc.num_allocated++;
2543
2544 /* Allocate the string hash table. */
2545 file_ptr->shash_head = (shash_t **) allocate_page ();
2546
2547 /* Make sure 0 byte in string table is null */
2548 add_string (&file_ptr->strings,
2549 &file_ptr->shash_head[0],
2550 &zero_bytes[0],
2551 &zero_bytes[0],
2552 (shash_t **)0);
2553
2554 if (file_end_p1 - file_start > PAGE_USIZE-2)
2555 fatal ("Filename goes over one page boundary.");
2556
2557 /* Push the start of the filename. We assume that the filename
2558 will be stored at string offset 1. */
2559 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2560 (symint_t)0, (symint_t)0);
2561 file_ptr->fdr.rss = 1;
2562 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2563 file_ptr->name_len = file_end_p1 - file_start;
2564
2565 /* Update the linked list of file descriptors. */
2566 *last_file_ptr = file_ptr;
2567 last_file_ptr = &file_ptr->next_file;
2568
2569 /* Add void & int types to the file (void should be first to catch
2570 errant 0's within the index fields). */
2571 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2572 hash_yes,
2573 &cur_file_ptr->thash_head[0]);
2574
2575 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2576 hash_yes,
2577 &cur_file_ptr->thash_head[0]);
2578 }
2579 }
2580
2581 \f
2582 /* Add a stream of random bytes to a varray. */
2583
2584 STATIC void
2585 add_bytes (vp, input_ptr, nitems)
2586 varray_t *vp; /* virtual array to add too */
2587 char *input_ptr; /* start of the bytes */
2588 Size_t nitems; /* # items to move */
2589 {
2590 register Size_t move_items;
2591 register Size_t move_bytes;
2592 register char *ptr;
2593
2594 while (nitems > 0)
2595 {
2596 if (vp->objects_last_page >= vp->objects_per_page)
2597 add_varray_page (vp);
2598
2599 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2600 move_items = vp->objects_per_page - vp->objects_last_page;
2601 if (move_items > nitems)
2602 move_items = nitems;
2603
2604 move_bytes = move_items * vp->object_size;
2605 nitems -= move_items;
2606
2607 if (move_bytes >= 32)
2608 {
2609 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2610 input_ptr += move_bytes;
2611 }
2612 else
2613 {
2614 while (move_bytes-- > 0)
2615 *ptr++ = *input_ptr++;
2616 }
2617 }
2618 }
2619
2620 \f
2621 /* Convert storage class to string. */
2622
2623 STATIC char *
2624 sc_to_string(storage_class)
2625 sc_t storage_class;
2626 {
2627 switch(storage_class)
2628 {
2629 case sc_Nil: return "Nil,";
2630 case sc_Text: return "Text,";
2631 case sc_Data: return "Data,";
2632 case sc_Bss: return "Bss,";
2633 case sc_Register: return "Register,";
2634 case sc_Abs: return "Abs,";
2635 case sc_Undefined: return "Undefined,";
2636 case sc_CdbLocal: return "CdbLocal,";
2637 case sc_Bits: return "Bits,";
2638 case sc_CdbSystem: return "CdbSystem,";
2639 case sc_RegImage: return "RegImage,";
2640 case sc_Info: return "Info,";
2641 case sc_UserStruct: return "UserStruct,";
2642 case sc_SData: return "SData,";
2643 case sc_SBss: return "SBss,";
2644 case sc_RData: return "RData,";
2645 case sc_Var: return "Var,";
2646 case sc_Common: return "Common,";
2647 case sc_SCommon: return "SCommon,";
2648 case sc_VarRegister: return "VarRegister,";
2649 case sc_Variant: return "Variant,";
2650 case sc_SUndefined: return "SUndefined,";
2651 case sc_Init: return "Init,";
2652 case sc_Max: return "Max,";
2653 }
2654
2655 return "???,";
2656 }
2657
2658 \f
2659 /* Convert symbol type to string. */
2660
2661 STATIC char *
2662 st_to_string(symbol_type)
2663 st_t symbol_type;
2664 {
2665 switch(symbol_type)
2666 {
2667 case st_Nil: return "Nil,";
2668 case st_Global: return "Global,";
2669 case st_Static: return "Static,";
2670 case st_Param: return "Param,";
2671 case st_Local: return "Local,";
2672 case st_Label: return "Label,";
2673 case st_Proc: return "Proc,";
2674 case st_Block: return "Block,";
2675 case st_End: return "End,";
2676 case st_Member: return "Member,";
2677 case st_Typedef: return "Typedef,";
2678 case st_File: return "File,";
2679 case st_RegReloc: return "RegReloc,";
2680 case st_Forward: return "Forward,";
2681 case st_StaticProc: return "StaticProc,";
2682 case st_Constant: return "Constant,";
2683 case st_Str: return "String,";
2684 case st_Number: return "Number,";
2685 case st_Expr: return "Expr,";
2686 case st_Type: return "Type,";
2687 case st_Max: return "Max,";
2688 }
2689
2690 return "???,";
2691 }
2692
2693 \f
2694 /* Read a line from standard input, and return the start of the buffer
2695 (which is grows if the line is too big). We split lines at the
2696 semi-colon, and return each logical line independently. */
2697
2698 STATIC char *
2699 read_line __proto((void))
2700 {
2701 static int line_split_p = 0;
2702 register int string_p = 0;
2703 register int comment_p = 0;
2704 register int ch;
2705 register char *ptr;
2706
2707 if (cur_line_start == (char *)0)
2708 { /* allocate initial page */
2709 cur_line_start = (char *) allocate_page ();
2710 cur_line_alloc = PAGE_SIZE;
2711 }
2712
2713 if (!line_split_p)
2714 line_number++;
2715
2716 line_split_p = 0;
2717 cur_line_nbytes = 0;
2718
2719 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2720 {
2721 if (++cur_line_nbytes >= cur_line_alloc-1)
2722 {
2723 register int num_pages = cur_line_alloc / PAGE_SIZE;
2724 register char *old_buffer = cur_line_start;
2725
2726 cur_line_alloc += PAGE_SIZE;
2727 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2728 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2729
2730 ptr = cur_line_start + cur_line_nbytes - 1;
2731 }
2732
2733 if (ch == '\n')
2734 {
2735 *ptr++ = '\n';
2736 *ptr = '\0';
2737 cur_line_ptr = cur_line_start;
2738 return cur_line_ptr;
2739 }
2740
2741 else if (ch == '\0')
2742 error ("Null character found in input");
2743
2744 else if (!comment_p)
2745 {
2746 if (ch == '"')
2747 string_p = !string_p;
2748
2749 else if (ch == '#')
2750 comment_p++;
2751
2752 else if (ch == ';' && !string_p)
2753 {
2754 line_split_p = 1;
2755 *ptr++ = '\n';
2756 *ptr = '\0';
2757 cur_line_ptr = cur_line_start;
2758 return cur_line_ptr;
2759 }
2760 }
2761 }
2762
2763 if (ferror (stdin))
2764 pfatal_with_name (input_name);
2765
2766 cur_line_ptr = (char *)0;
2767 return (char *)0;
2768 }
2769
2770 \f
2771 /* Parse #.begin directives which have a label as the first argument
2772 which gives the location of the start of the block. */
2773
2774 STATIC void
2775 parse_begin (start)
2776 const char *start; /* start of directive */
2777 {
2778 const char *end_p1; /* end of label */
2779 int ch;
2780 shash_t *hash_ptr; /* hash pointer to lookup label */
2781
2782 if (cur_file_ptr == (efdr_t *)0)
2783 {
2784 error ("#.begin directive without a preceding .file directive");
2785 return;
2786 }
2787
2788 if (cur_proc_ptr == (PDR *)0)
2789 {
2790 error ("#.begin directive without a preceding .ent directive");
2791 return;
2792 }
2793
2794 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2795 ;
2796
2797 hash_ptr = hash_string (start,
2798 end_p1 - start,
2799 &orig_str_hash[0],
2800 (symint_t *)0);
2801
2802 if (hash_ptr == (shash_t *)0)
2803 {
2804 error ("Label %.*s not found for #.begin", 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", end_p1 - start, start);
2811 return;
2812 }
2813
2814 (void) add_local_symbol ((const char *)0, (const char *)0,
2815 st_Block, sc_Text,
2816 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2817 (symint_t)0);
2818 }
2819
2820 \f
2821 /* Parse #.bend directives which have a label as the first argument
2822 which gives the location of the end of the block. */
2823
2824 STATIC void
2825 parse_bend (start)
2826 const char *start; /* start of directive */
2827 {
2828 const char *end_p1; /* end of label */
2829 int ch;
2830 shash_t *hash_ptr; /* hash pointer to lookup label */
2831
2832 if (cur_file_ptr == (efdr_t *)0)
2833 {
2834 error ("#.begin directive without a preceding .file directive");
2835 return;
2836 }
2837
2838 if (cur_proc_ptr == (PDR *)0)
2839 {
2840 error ("#.bend directive without a preceding .ent directive");
2841 return;
2842 }
2843
2844 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2845 ;
2846
2847 hash_ptr = hash_string (start,
2848 end_p1 - start,
2849 &orig_str_hash[0],
2850 (symint_t *)0);
2851
2852 if (hash_ptr == (shash_t *)0)
2853 {
2854 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2855 return;
2856 }
2857
2858 if (cur_oproc_begin == (SYMR *)0)
2859 {
2860 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2861 return;
2862 }
2863
2864 (void) add_local_symbol ((const char *)0, (const char *)0,
2865 st_End, sc_Text,
2866 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2867 (symint_t)0);
2868 }
2869
2870 \f
2871 /* Parse #.def directives, which are contain standard COFF subdirectives
2872 to describe the debugging format. These subdirectives include:
2873
2874 .scl specify storage class
2875 .val specify a value
2876 .endef specify end of COFF directives
2877 .type specify the type
2878 .size specify the size of an array
2879 .dim specify an array dimension
2880 .tag specify a tag for a struct, union, or enum. */
2881
2882 STATIC void
2883 parse_def (name_start)
2884 const char *name_start; /* start of directive */
2885 {
2886 const char *dir_start; /* start of current directive*/
2887 const char *dir_end_p1; /* end+1 of current directive*/
2888 const char *arg_start; /* start of current argument */
2889 const char *arg_end_p1; /* end+1 of current argument */
2890 const char *name_end_p1; /* end+1 of label */
2891 const char *tag_start = (const char *)0; /* start of tag name */
2892 const char *tag_end_p1 = (const char *)0; /* end+1 of tag name */
2893 sc_t storage_class = sc_Nil;
2894 st_t symbol_type = st_Nil;
2895 type_info_t t;
2896 EXTR *eptr = (EXTR *)0; /* ext. sym equivalent to def*/
2897 int is_function = 0; /* != 0 if function */
2898 symint_t value = 0;
2899 symint_t index = cur_file_ptr->void_type;
2900 int error_line = 0;
2901 symint_t arg_number;
2902 symint_t temp_array[ N_TQ ];
2903 int arg_was_number;
2904 int ch, i;
2905 Ptrdiff_t len;
2906
2907 static int inside_enumeration = 0; /* is this an enumeration? */
2908
2909
2910 /* Initialize the type information. */
2911 t = type_info_init;
2912
2913
2914 /* Search for the end of the name being defined. */
2915 /* Allow spaces and such in names for G++ templates, which produce stabs
2916 that look like:
2917
2918 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2919
2920 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' || ch == '\0'; name_end_p1++)
2921 ;
2922
2923 if (ch == '\0')
2924 {
2925 error_line = __LINE__;
2926 saber_stop ();
2927 goto bomb_out;
2928 }
2929
2930 /* Parse the remaining subdirectives now. */
2931 dir_start = name_end_p1+1;
2932 for (;;)
2933 {
2934 while ((ch = *dir_start) == ' ' || ch == '\t')
2935 ++dir_start;
2936
2937 if (ch != '.')
2938 {
2939 error_line = __LINE__;
2940 saber_stop ();
2941 goto bomb_out;
2942 }
2943
2944 /* Are we done? */
2945 if (dir_start[1] == 'e'
2946 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2947 break;
2948
2949 /* Pick up the subdirective now */
2950 for (dir_end_p1 = dir_start+1;
2951 (ch = *dir_end_p1) != ' ' && ch != '\t';
2952 dir_end_p1++)
2953 {
2954 if (ch == '\0' || isspace (ch))
2955 {
2956 error_line = __LINE__;
2957 saber_stop ();
2958 goto bomb_out;
2959 }
2960 }
2961
2962 /* Pick up the subdirective argument now. */
2963 arg_was_number = arg_number = 0;
2964 arg_end_p1 = (const char *)0;
2965 arg_start = dir_end_p1+1;
2966 ch = *arg_start;
2967 while (ch == ' ' || ch == '\t')
2968 ch = *++arg_start;
2969
2970 if (isdigit (ch) || ch == '-' || ch == '+')
2971 {
2972 int ch2;
2973 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
2974 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
2975 arg_was_number++;
2976 }
2977
2978 else if (ch == '\0' || isspace (ch))
2979 {
2980 error_line = __LINE__;
2981 saber_stop ();
2982 goto bomb_out;
2983 }
2984
2985 if (!arg_was_number)
2986 for (arg_end_p1 = arg_start+1; (ch = *arg_end_p1) != ';'; arg_end_p1++)
2987 {
2988 if (ch == '\0' || isspace (ch))
2989 {
2990 error_line = __LINE__;
2991 saber_stop ();
2992 goto bomb_out;
2993 }
2994 }
2995
2996
2997 /* Classify the directives now. */
2998 len = dir_end_p1 - dir_start;
2999 switch (dir_start[1])
3000 {
3001 default:
3002 error_line = __LINE__;
3003 saber_stop ();
3004 goto bomb_out;
3005
3006 case 'd':
3007 if (len == sizeof (".dim")-1
3008 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3009 && arg_was_number)
3010 {
3011 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3012
3013 *t_ptr = arg_number;
3014 while (*arg_end_p1 == ',' && arg_was_number)
3015 {
3016 arg_start = arg_end_p1+1;
3017 ch = *arg_start;
3018 while (ch == ' ' || ch == '\t')
3019 ch = *++arg_start;
3020
3021 arg_was_number = 0;
3022 if (isdigit (ch) || ch == '-' || ch == '+')
3023 {
3024 int ch2;
3025 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3026 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3027 arg_was_number++;
3028
3029 if (t_ptr == &temp_array[0])
3030 {
3031 error_line = __LINE__;
3032 saber_stop ();
3033 goto bomb_out;
3034 }
3035
3036 *--t_ptr = arg_number;
3037 }
3038 }
3039
3040 /* Reverse order of dimensions. */
3041 while (t_ptr <= &temp_array[ N_TQ-1 ])
3042 {
3043 if (t.num_dims >= N_TQ-1)
3044 {
3045 error_line = __LINE__;
3046 saber_stop ();
3047 goto bomb_out;
3048 }
3049
3050 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3051 }
3052 break;
3053 }
3054 else
3055 {
3056 error_line = __LINE__;
3057 saber_stop ();
3058 goto bomb_out;
3059 }
3060
3061
3062 case 's':
3063 if (len == sizeof (".scl")-1
3064 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3065 && arg_was_number
3066 && arg_number < ((symint_t) C_MAX))
3067 {
3068 /* If the symbol is a static or external, we have
3069 already gotten the appropriate type and class, so
3070 make sure we don't override those values. This is
3071 needed because there are some type and classes that
3072 are not in COFF, such as short data, etc. */
3073 if (symbol_type == st_Nil)
3074 {
3075 symbol_type = map_coff_sym_type[arg_number];
3076 storage_class = map_coff_storage [arg_number];
3077 }
3078 break;
3079 }
3080
3081 else if (len == sizeof (".size")-1
3082 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3083 && arg_was_number)
3084 {
3085 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3086
3087 *t_ptr = arg_number;
3088 while (*arg_end_p1 == ',' && arg_was_number)
3089 {
3090 arg_start = arg_end_p1+1;
3091 ch = *arg_start;
3092 while (ch == ' ' || ch == '\t')
3093 ch = *++arg_start;
3094
3095 arg_was_number = 0;
3096 if (isdigit (ch) || ch == '-' || ch == '+')
3097 {
3098 int ch2;
3099 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3100 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3101 arg_was_number++;
3102
3103 if (t_ptr == &temp_array[0])
3104 {
3105 error_line = __LINE__;
3106 saber_stop ();
3107 goto bomb_out;
3108 }
3109
3110 *--t_ptr = arg_number;
3111 }
3112 }
3113
3114 /* Reverse order of sizes. */
3115 while (t_ptr <= &temp_array[ N_TQ-1 ])
3116 {
3117 if (t.num_sizes >= N_TQ-1)
3118 {
3119 error_line = __LINE__;
3120 saber_stop ();
3121 goto bomb_out;
3122 }
3123
3124 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3125 }
3126 break;
3127 }
3128
3129 else
3130 {
3131 error_line = __LINE__;
3132 saber_stop ();
3133 goto bomb_out;
3134 }
3135
3136
3137 case 't':
3138 if (len == sizeof (".type")-1
3139 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3140 && arg_was_number)
3141 {
3142 tq_t *tq_ptr = &t.type_qualifiers[0];
3143
3144 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3145 t.basic_type = map_coff_types [(int)t.orig_type];
3146 for (i = N_TQ-1; i >= 0; i--)
3147 {
3148 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3149 & N_TMASK);
3150
3151 if (dt != (int)DT_NON)
3152 *tq_ptr++ = map_coff_derived_type [dt];
3153 }
3154
3155 /* If this is a function, ignore it, so that we don't get
3156 two entries (one from the .ent, and one for the .def
3157 that precedes it). Save the type information so that
3158 the end block can properly add it after the begin block
3159 index. For MIPS knows what reason, we must strip off
3160 the function type at this point. */
3161 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3162 {
3163 is_function = 1;
3164 tq_ptr[-1] = tq_Nil;
3165 }
3166
3167 break;
3168 }
3169
3170 else if (len == sizeof (".tag")-1
3171 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3172 {
3173 tag_start = arg_start;
3174 tag_end_p1 = arg_end_p1;
3175 break;
3176 }
3177
3178 else
3179 {
3180 error_line = __LINE__;
3181 saber_stop ();
3182 goto bomb_out;
3183 }
3184
3185
3186 case 'v':
3187 if (len == sizeof (".val")-1
3188 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3189 {
3190 if (arg_was_number)
3191 value = arg_number;
3192
3193 /* If the value is not an integer value, it must be the
3194 name of a static or global item. Look up the name in
3195 the original symbol table to pick up the storage
3196 class, symbol type, etc. */
3197 else
3198 {
3199 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3200 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3201
3202 ext_hash_ptr = hash_string (arg_start,
3203 arg_end_p1 - arg_start,
3204 &ext_str_hash[0],
3205 (symint_t *)0);
3206
3207 if (ext_hash_ptr != (shash_t *)0
3208 && ext_hash_ptr->esym_ptr != (EXTR *)0)
3209 eptr = ext_hash_ptr->esym_ptr;
3210
3211 orig_hash_ptr = hash_string (arg_start,
3212 arg_end_p1 - arg_start,
3213 &orig_str_hash[0],
3214 (symint_t *)0);
3215
3216 if ((orig_hash_ptr == (shash_t *)0
3217 || orig_hash_ptr->sym_ptr == (SYMR *)0)
3218 && eptr == (EXTR *)0)
3219 {
3220 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3221 arg_end_p1 - arg_start,
3222 arg_start);
3223 value = 0;
3224 }
3225 else
3226 {
3227 SYMR *ptr = (orig_hash_ptr != (shash_t *)0
3228 && orig_hash_ptr->sym_ptr != (SYMR *)0)
3229 ? orig_hash_ptr->sym_ptr
3230 : &eptr->asym;
3231
3232 symbol_type = (st_t) ptr->st;
3233 storage_class = (sc_t) ptr->sc;
3234 value = ptr->value;
3235 }
3236 }
3237 break;
3238 }
3239 else
3240 {
3241 error_line = __LINE__;
3242 saber_stop ();
3243 goto bomb_out;
3244 }
3245 }
3246
3247 /* Set up to find next directive. */
3248 dir_start = arg_end_p1 + 1;
3249 }
3250
3251
3252 t.extra_sizes = (tag_start != (char *)0);
3253 if (t.num_dims > 0)
3254 {
3255 int diff = t.num_dims - t.num_sizes;
3256 int i = t.num_dims - 1;
3257 int j;
3258
3259 if (t.num_sizes != 1 || diff < 0)
3260 {
3261 error_line = __LINE__;
3262 saber_stop ();
3263 goto bomb_out;
3264 }
3265
3266 /* If this is an array, make sure the same number of dimensions
3267 and sizes were passed, creating extra sizes for multiply
3268 dimensioned arrays if not passed. */
3269
3270 t.extra_sizes = 0;
3271 if (diff)
3272 {
3273 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3274 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3275
3276 t.num_sizes = i + 1;
3277 for ( i--; i >= 0; i-- )
3278 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3279 }
3280 }
3281
3282 else if (symbol_type == st_Member && t.num_sizes - t.extra_sizes == 1)
3283 { /* Is this a bitfield? This is indicated by a structure memeber
3284 having a size field that isn't an array. */
3285
3286 t.bitfield = 1;
3287 }
3288
3289
3290 /* Except for enumeration members & begin/ending of scopes, put the
3291 type word in the aux. symbol table. */
3292
3293 if (symbol_type == st_Block || symbol_type == st_End)
3294 index = 0;
3295
3296 else if (inside_enumeration)
3297 index = cur_file_ptr->void_type;
3298
3299 else
3300 {
3301 if (t.basic_type == bt_Struct
3302 || t.basic_type == bt_Union
3303 || t.basic_type == bt_Enum)
3304 {
3305 if (tag_start == (char *)0)
3306 {
3307 error ("No tag specified for %.*s",
3308 name_end_p1 - name_start,
3309 name_start);
3310 return;
3311 }
3312
3313 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3314 t.basic_type);
3315 }
3316
3317 if (is_function)
3318 {
3319 last_func_type_info = t;
3320 last_func_eptr = eptr;
3321 return;
3322 }
3323
3324 index = add_aux_sym_tir (&t,
3325 hash_yes,
3326 &cur_file_ptr->thash_head[0]);
3327 }
3328
3329
3330 /* If this is an external or static symbol, update the appropriate
3331 external symbol. */
3332
3333 if (eptr != (EXTR *)0
3334 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *)0))
3335 {
3336 eptr->ifd = cur_file_ptr->file_index;
3337 eptr->asym.index = index;
3338 }
3339
3340
3341 /* Do any last minute adjustments that are necessary. */
3342 switch (symbol_type)
3343 {
3344 default:
3345 break;
3346
3347
3348 /* For the beginning of structs, unions, and enumerations, the
3349 size info needs to be passed in the value field. */
3350
3351 case st_Block:
3352 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3353 {
3354 error_line = __LINE__;
3355 saber_stop ();
3356 goto bomb_out;
3357 }
3358
3359 else
3360 value = t.sizes[0];
3361
3362 inside_enumeration = (t.orig_type == T_ENUM);
3363 break;
3364
3365
3366 /* For the end of structs, unions, and enumerations, omit the
3367 name which is always ".eos". This needs to be done last, so
3368 that any error reporting above gives the correct name. */
3369
3370 case st_End:
3371 name_start = name_end_p1 = (const char *)0;
3372 value = inside_enumeration = 0;
3373 break;
3374
3375
3376 /* Members of structures and unions that aren't bitfields, need
3377 to adjust the value from a byte offset to a bit offset.
3378 Members of enumerations do not have the value adjusted, and
3379 can be distinguished by index == indexNil. For enumerations,
3380 update the maximum enumeration value. */
3381
3382 case st_Member:
3383 if (!t.bitfield && !inside_enumeration)
3384 value *= 8;
3385
3386 break;
3387 }
3388
3389
3390 /* Add the symbol, except for global symbols outside of functions,
3391 for which the external symbol table is fine enough. */
3392
3393 if (eptr == (EXTR *)0
3394 || eptr->asym.st == (int)st_Nil
3395 || cur_proc_ptr != (PDR *)0)
3396 {
3397 symint_t isym = add_local_symbol (name_start, name_end_p1,
3398 symbol_type, storage_class,
3399 value,
3400 index);
3401
3402 /* deal with struct, union, and enum tags. */
3403 if (symbol_type == st_Block)
3404 {
3405 /* Create or update the tag information. */
3406 tag_t *tag_ptr = get_tag (name_start,
3407 name_end_p1,
3408 isym,
3409 t.basic_type);
3410
3411 /* If there are any forward references, fill in the appropriate
3412 file and symbol indexes. */
3413
3414 symint_t file_index = cur_file_ptr->file_index;
3415 forward_t *f_next = tag_ptr->forward_ref;
3416 forward_t *f_cur;
3417
3418 while (f_next != (forward_t *)0)
3419 {
3420 f_cur = f_next;
3421 f_next = f_next->next;
3422
3423 f_cur->ifd_ptr->isym = file_index;
3424 f_cur->index_ptr->rndx.index = isym;
3425
3426 free_forward (f_cur);
3427 }
3428
3429 tag_ptr->forward_ref = (forward_t *)0;
3430 }
3431 }
3432
3433 /* Normal return */
3434 return;
3435
3436 /* Error return, issue message. */
3437 bomb_out:
3438 if (error_line)
3439 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3440 else
3441 error ("compiler error, badly formed #.def");
3442
3443 return;
3444 }
3445
3446 \f
3447 /* Parse .end directives. */
3448
3449 STATIC void
3450 parse_end (start)
3451 const char *start; /* start of directive */
3452 {
3453 register const char *start_func, *end_func_p1;
3454 register int ch;
3455 register symint_t value;
3456 register FDR *orig_fdr;
3457
3458 if (cur_file_ptr == (efdr_t *)0)
3459 {
3460 error (".end directive without a preceding .file directive");
3461 return;
3462 }
3463
3464 if (cur_proc_ptr == (PDR *)0)
3465 {
3466 error (".end directive without a preceding .ent directive");
3467 return;
3468 }
3469
3470 /* Get the function name, skipping whitespace. */
3471 for (start_func = start; isspace (*start_func); start_func++)
3472 ;
3473
3474 ch = *start_func;
3475 if (!IS_ASM_IDENT (ch))
3476 {
3477 error (".end directive has no name");
3478 return;
3479 }
3480
3481 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3482 ;
3483
3484
3485 /* Get the value field for creating the end from the original object
3486 file (which we find by locating the procedure start, and using the
3487 pointer to the end+1 block and backing up. The index points to a
3488 two word aux. symbol, whose first word is the index of the end
3489 symbol, and the second word is the type of the function return
3490 value. */
3491
3492 orig_fdr = cur_file_ptr->orig_fdr;
3493 value = 0;
3494 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *)0)
3495 value = cur_oproc_end->value;
3496
3497 else
3498 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3499
3500 (void) add_local_symbol (start_func, end_func_p1,
3501 st_End, sc_Text,
3502 value,
3503 (symint_t)0);
3504
3505 cur_proc_ptr = cur_oproc_ptr = (PDR *)0;
3506 }
3507
3508 \f
3509 /* Parse .ent directives. */
3510
3511 STATIC void
3512 parse_ent (start)
3513 const char *start; /* start of directive */
3514 {
3515 register const char *start_func, *end_func_p1;
3516 register int ch;
3517
3518 if (cur_file_ptr == (efdr_t *)0)
3519 {
3520 error (".ent directive without a preceding .file directive");
3521 return;
3522 }
3523
3524 if (cur_proc_ptr != (PDR *)0)
3525 {
3526 error ("second .ent directive found before .end directive");
3527 return;
3528 }
3529
3530 for (start_func = start; isspace (*start_func); start_func++)
3531 ;
3532
3533 ch = *start_func;
3534 if (!IS_ASM_IDENT (ch))
3535 {
3536 error (".ent directive has no name");
3537 return;
3538 }
3539
3540 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3541 ;
3542
3543 (void) add_procedure (start_func, end_func_p1);
3544 }
3545
3546 \f
3547 /* Parse .file directives. */
3548
3549 STATIC void
3550 parse_file (start)
3551 const char *start; /* start of directive */
3552 {
3553 char *p;
3554 register char *start_name, *end_name_p1;
3555
3556 (void) strtol (start, &p, 0);
3557 if (start == p
3558 || (start_name = index (p, '"')) == (char *)0
3559 || (end_name_p1 = rindex (++start_name, '"')) == (char *)0)
3560 {
3561 error ("Illegal .file directive");
3562 return;
3563 }
3564
3565 if (cur_proc_ptr != (PDR *)0)
3566 {
3567 error ("No way to handle .file within .ent/.end section");
3568 return;
3569 }
3570
3571 add_file (start_name, end_name_p1);
3572 }
3573
3574 \f
3575 /* Make sure the @stabs symbol is emitted. */
3576
3577 static void
3578 mark_stabs (start)
3579 const char *start; /* Start of directive (ignored) */
3580 {
3581 if (!stabs_seen)
3582 {
3583 /* Add a dummy @stabs dymbol. */
3584 stabs_seen = 1;
3585 (void) add_local_symbol (stabs_symbol,
3586 stabs_symbol + sizeof (stabs_symbol),
3587 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3588
3589 }
3590 }
3591
3592 \f
3593 /* Parse .stabs directives.
3594
3595 .stabs directives have five fields:
3596 "string" a string, encoding the type information.
3597 code a numeric code, defined in <stab.h>
3598 0 a zero
3599 0 a zero or line number
3600 value a numeric value or an address.
3601
3602 If the value is relocatable, we transform this into:
3603 iss points as an index into string space
3604 value value from lookup of the name
3605 st st from lookup of the name
3606 sc sc from lookup of the name
3607 index code|CODE_MASK
3608
3609 If the value is not relocatable, we transform this into:
3610 iss points as an index into string space
3611 value value
3612 st st_Nil
3613 sc sc_Nil
3614 index code|CODE_MASK
3615
3616 .stabn directives have four fields (string is null):
3617 code a numeric code, defined in <stab.h>
3618 0 a zero
3619 0 a zero or a line number
3620 value a numeric value or an address. */
3621
3622 STATIC void
3623 parse_stabs_common (string_start, string_end, rest)
3624 const char *string_start; /* start of string or NULL */
3625 const char *string_end; /* end+1 of string or NULL */
3626 const char *rest; /* rest of the directive. */
3627 {
3628 efdr_t *save_file_ptr = cur_file_ptr;
3629 symint_t code;
3630 symint_t value;
3631 char *p;
3632 st_t st;
3633 sc_t sc;
3634 int ch;
3635
3636 if (stabs_seen == 0)
3637 mark_stabs ("");
3638
3639 /* Read code from stabs. */
3640 if (!isdigit (*rest))
3641 {
3642 error ("Illegal .stabs/.stabn directive, code is non-numeric");
3643 return;
3644 }
3645
3646 code = strtol (rest, &p, 0);
3647
3648 /* Line number stabs are handled differently, since they have two values,
3649 the line number and the address of the label. We use the index field
3650 (aka code) to hold the line number, and the value field to hold the
3651 address. The symbol type is st_Label, which should be different from
3652 the other stabs, so that gdb can recognize it. */
3653
3654 if (code == (int)N_SLINE)
3655 {
3656 SYMR *sym_ptr;
3657 shash_t *shash_ptr;
3658
3659 /* Skip ,0, */
3660 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3661 {
3662 error ("Illegal line number .stabs/.stabn directive");
3663 return;
3664 }
3665
3666 code = strtol (p+3, &p, 0);
3667 ch = *++p;
3668 if (code <= 0 || p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3669 {
3670 error ("Illegal line number .stabs/.stabn directive");
3671 return;
3672 }
3673
3674 shash_ptr = hash_string (p,
3675 strlen (p) - 1,
3676 &orig_str_hash[0],
3677 (symint_t *)0);
3678
3679 if (shash_ptr == (shash_t *)0
3680 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3681 {
3682 error ("Illegal .stabs/.stabn directive, value not found");
3683 return;
3684 }
3685
3686 if ((st_t) sym_ptr->st != st_Label)
3687 {
3688 error ("Illegal line number .stabs/.stabn directive");
3689 return;
3690 }
3691
3692 st = st_Label;
3693 sc = (sc_t) sym_ptr->sc;
3694 value = sym_ptr->value;
3695 }
3696 else
3697 {
3698 /* Skip ,0,0, */
3699 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || p[3] != '0' || p[4] != ',')
3700 {
3701 error ("Illegal .stabs/.stabn directive, mandatory 0 isn't");
3702 return;
3703 }
3704
3705 p += 5;
3706 ch = *p;
3707 if (!IS_ASM_IDENT (ch) && ch != '-')
3708 {
3709 error ("Illegal .stabs/.stabn directive, bad character");
3710 return;
3711 }
3712
3713 if (isdigit (ch) || ch == '-')
3714 {
3715 st = st_Nil;
3716 sc = sc_Nil;
3717 value = strtol (p, &p, 0);
3718 if (*p != '\n')
3719 {
3720 error ("Illegal .stabs/.stabn directive, stuff after numeric value");
3721 return;
3722 }
3723 }
3724 else if (!IS_ASM_IDENT (ch))
3725 {
3726 error ("Illegal .stabs/.stabn directive, bad character");
3727 return;
3728 }
3729 else
3730 {
3731 SYMR *sym_ptr;
3732 shash_t *shash_ptr = hash_string (p,
3733 strlen (p) - 1,
3734 &orig_str_hash[0],
3735 (symint_t *)0);
3736
3737 if (shash_ptr == (shash_t *)0
3738 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *)0)
3739 {
3740 error ("Illegal .stabs/.stabn directive, value not found");
3741 return;
3742 }
3743
3744 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3745 if (code == (int)N_LBRAC || code == (int)N_RBRAC)
3746 {
3747 sc = scNil;
3748 st = stNil;
3749 }
3750 else
3751 {
3752 sc = (sc_t) sym_ptr->sc;
3753 st = (st_t) sym_ptr->st;
3754 }
3755 value = sym_ptr->value;
3756 }
3757 code = MIPS_MARK_STAB(code);
3758 }
3759
3760 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3761 /* Restore normal file type. */
3762 cur_file_ptr = save_file_ptr;
3763 }
3764
3765
3766 STATIC void
3767 parse_stabs (start)
3768 const char *start; /* start of directive */
3769 {
3770 const char *end = index (start+1, '"');
3771
3772 if (*start != '"' || end == (const char *)0 || end[1] != ',')
3773 {
3774 error ("Illegal .stabs directive, no string");
3775 return;
3776 }
3777
3778 parse_stabs_common (start+1, end, end+2);
3779 }
3780
3781
3782 STATIC void
3783 parse_stabn (start)
3784 const char *start; /* start of directive */
3785 {
3786 parse_stabs_common ((const char *)0, (const char *)0, start);
3787 }
3788
3789 \f
3790 /* Parse the input file, and write the lines to the output file
3791 if needed. */
3792
3793 STATIC void
3794 parse_input __proto((void))
3795 {
3796 register char *p;
3797 register int i;
3798 register thead_t *ptag_head;
3799 register tag_t *ptag;
3800 register tag_t *ptag_next;
3801
3802 if (debug)
3803 fprintf (stderr, "\tinput\n");
3804
3805 /* Add a dummy scope block around the entire compilation unit for
3806 structures defined outside of blocks. */
3807 ptag_head = allocate_thead ();
3808 ptag_head->first_tag = 0;
3809 ptag_head->prev = cur_tag_head;
3810 cur_tag_head = ptag_head;
3811
3812 while ((p = read_line ()) != (char *)0)
3813 {
3814 /* Skip leading blanks */
3815 while (isspace (*p))
3816 p++;
3817
3818 /* See if it's a directive we handle. If so, dispatch handler. */
3819 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3820 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3821 && isspace (p[pseudo_ops[i].len]))
3822 {
3823 p += pseudo_ops[i].len; /* skip to first argument */
3824 while (isspace (*p))
3825 p++;
3826
3827 (*pseudo_ops[i].func)( p );
3828 break;
3829 }
3830 }
3831
3832 /* Process any tags at global level. */
3833 ptag_head = cur_tag_head;
3834 cur_tag_head = ptag_head->prev;
3835
3836 for (ptag = ptag_head->first_tag;
3837 ptag != (tag_t *)0;
3838 ptag = ptag_next)
3839 {
3840 if (ptag->forward_ref != (forward_t *)0)
3841 add_unknown_tag (ptag);
3842
3843 ptag_next = ptag->same_block;
3844 ptag->hash_ptr->tag_ptr = ptag->same_name;
3845 free_tag (ptag);
3846 }
3847
3848 free_thead (ptag_head);
3849
3850 }
3851
3852 \f
3853 /* Update the global headers with the final offsets in preparation
3854 to write out the .T file. */
3855
3856 STATIC void
3857 update_headers __proto((void))
3858 {
3859 register symint_t i;
3860 register efdr_t *file_ptr;
3861
3862 /* Set up the symbolic header. */
3863 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3864 symbolic_header.magic = orig_sym_hdr.magic;
3865 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3866
3867 /* Set up global counts. */
3868 symbolic_header.issExtMax = ext_strings.num_allocated;
3869 symbolic_header.idnMax = dense_num.num_allocated;
3870 symbolic_header.ifdMax = file_desc.num_allocated;
3871 symbolic_header.iextMax = ext_symbols.num_allocated;
3872 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3873 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3874 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3875 symbolic_header.crfd = orig_sym_hdr.crfd;
3876
3877
3878 /* Loop through each file, figuring out how many local syms,
3879 line numbers, etc. there are. Also, put out end symbol
3880 for the filename. */
3881
3882 for (file_ptr = first_file;
3883 file_ptr != (efdr_t *)0;
3884 file_ptr = file_ptr->next_file)
3885 {
3886 cur_file_ptr = file_ptr;
3887 (void) add_local_symbol ((const char *)0, (const char *)0,
3888 st_End, sc_Text,
3889 (symint_t)0,
3890 (symint_t)0);
3891
3892 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
3893 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
3894 symbolic_header.ipdMax += file_ptr->fdr.cpd;
3895
3896 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
3897 file_ptr->fdr.isymBase = symbolic_header.isymMax;
3898 symbolic_header.isymMax += file_ptr->fdr.csym;
3899
3900 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
3901 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
3902 symbolic_header.iauxMax += file_ptr->fdr.caux;
3903
3904 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
3905 file_ptr->fdr.issBase = symbolic_header.issMax;
3906 symbolic_header.issMax += file_ptr->fdr.cbSs;
3907 }
3908
3909
3910 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
3911 if (i > 0)
3912 {
3913 symbolic_header.cbLineOffset = file_offset;
3914 file_offset += i;
3915 }
3916
3917 i = symbolic_header.ioptMax; /* optimization symbols */
3918 if (((long) i) > 0)
3919 {
3920 symbolic_header.cbOptOffset = file_offset;
3921 file_offset += i * sizeof (OPTR);
3922 }
3923
3924 i = symbolic_header.idnMax; /* dense numbers */
3925 if (i > 0)
3926 {
3927 symbolic_header.cbDnOffset = file_offset;
3928 file_offset += i * sizeof (DNR);
3929 }
3930
3931 i = symbolic_header.ipdMax; /* procedure tables */
3932 if (i > 0)
3933 {
3934 symbolic_header.cbPdOffset = file_offset;
3935 file_offset += i * sizeof (PDR);
3936 }
3937
3938 i = symbolic_header.isymMax; /* local symbols */
3939 if (i > 0)
3940 {
3941 symbolic_header.cbSymOffset = file_offset;
3942 file_offset += i * sizeof (SYMR);
3943 }
3944
3945 i = symbolic_header.iauxMax; /* aux syms. */
3946 if (i > 0)
3947 {
3948 symbolic_header.cbAuxOffset = file_offset;
3949 file_offset += i * sizeof (TIR);
3950 }
3951
3952 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
3953 if (i > 0)
3954 {
3955 symbolic_header.cbSsOffset = file_offset;
3956 file_offset += i;
3957 }
3958
3959 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
3960 if (i > 0)
3961 {
3962 symbolic_header.cbSsExtOffset = file_offset;
3963 file_offset += i;
3964 }
3965
3966 i = symbolic_header.ifdMax; /* file tables */
3967 if (i > 0)
3968 {
3969 symbolic_header.cbFdOffset = file_offset;
3970 file_offset += i * sizeof (FDR);
3971 }
3972
3973 i = symbolic_header.crfd; /* relative file descriptors */
3974 if (i > 0)
3975 {
3976 symbolic_header.cbRfdOffset = file_offset;
3977 file_offset += i * sizeof (symint_t);
3978 }
3979
3980 i = symbolic_header.iextMax; /* external symbols */
3981 if (i > 0)
3982 {
3983 symbolic_header.cbExtOffset = file_offset;
3984 file_offset += i * sizeof (EXTR);
3985 }
3986 }
3987
3988 \f
3989 /* Write out a varray at a given location. */
3990
3991 STATIC void
3992 write_varray (vp, offset, str)
3993 varray_t *vp; /* virtual array */
3994 off_t offset; /* offset to write varray to */
3995 const char *str; /* string to print out when tracing */
3996 {
3997 int num_write, sys_write;
3998 vlinks_t *ptr;
3999
4000 if (vp->num_allocated == 0)
4001 return;
4002
4003 if (debug)
4004 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4005 vp, offset, vp->num_allocated * vp->object_size, str);
4006
4007 if (file_offset != offset
4008 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4009 pfatal_with_name (object_name);
4010
4011 for (ptr = vp->first; ptr != (vlinks_t *)0; ptr = ptr->next)
4012 {
4013 num_write = (ptr->next == (vlinks_t *)0)
4014 ? vp->objects_last_page * vp->object_size
4015 : vp->objects_per_page * vp->object_size;
4016
4017 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4018 if (sys_write <= 0)
4019 pfatal_with_name (object_name);
4020
4021 else if (sys_write != num_write)
4022 fatal ("Wrote %d bytes to %s, system returned %d",
4023 num_write,
4024 object_name,
4025 sys_write);
4026
4027 file_offset += num_write;
4028 }
4029 }
4030
4031 \f
4032 /* Write out the symbol table in the object file. */
4033
4034 STATIC void
4035 write_object __proto((void))
4036 {
4037 int sys_write;
4038 efdr_t *file_ptr;
4039 off_t offset;
4040
4041 if (debug)
4042 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4043 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4044 "symbolic header");
4045
4046 sys_write = fwrite ((PTR_T) &symbolic_header,
4047 1,
4048 sizeof (symbolic_header),
4049 object_stream);
4050
4051 if (sys_write < 0)
4052 pfatal_with_name (object_name);
4053
4054 else if (sys_write != sizeof (symbolic_header))
4055 fatal ("Wrote %d bytes to %s, system returned %d",
4056 sizeof (symbolic_header),
4057 object_name,
4058 sys_write);
4059
4060
4061 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4062
4063 if (symbolic_header.cbLine > 0) /* line numbers */
4064 {
4065 long sys_write;
4066
4067 if (file_offset != symbolic_header.cbLineOffset
4068 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4069 pfatal_with_name (object_name);
4070
4071 if (debug)
4072 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4073 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4074 symbolic_header.cbLine, "Line numbers");
4075
4076 sys_write = fwrite ((PTR_T) orig_linenum,
4077 1,
4078 symbolic_header.cbLine,
4079 object_stream);
4080
4081 if (sys_write <= 0)
4082 pfatal_with_name (object_name);
4083
4084 else if (sys_write != symbolic_header.cbLine)
4085 fatal ("Wrote %d bytes to %s, system returned %d",
4086 symbolic_header.cbLine,
4087 object_name,
4088 sys_write);
4089
4090 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4091 }
4092
4093 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4094 {
4095 long sys_write;
4096 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4097
4098 if (file_offset != symbolic_header.cbOptOffset
4099 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4100 pfatal_with_name (object_name);
4101
4102 if (debug)
4103 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4104 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4105 num_write, "Optimizer symbols");
4106
4107 sys_write = fwrite ((PTR_T) orig_opt_syms,
4108 1,
4109 num_write,
4110 object_stream);
4111
4112 if (sys_write <= 0)
4113 pfatal_with_name (object_name);
4114
4115 else if (sys_write != num_write)
4116 fatal ("Wrote %d bytes to %s, system returned %d",
4117 num_write,
4118 object_name,
4119 sys_write);
4120
4121 file_offset = symbolic_header.cbOptOffset + num_write;
4122 }
4123
4124 if (symbolic_header.idnMax > 0) /* dense numbers */
4125 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4126
4127 if (symbolic_header.ipdMax > 0) /* procedure tables */
4128 {
4129 offset = symbolic_header.cbPdOffset;
4130 for (file_ptr = first_file;
4131 file_ptr != (efdr_t *)0;
4132 file_ptr = file_ptr->next_file)
4133 {
4134 write_varray (&file_ptr->procs, offset, "Procedure tables");
4135 offset = file_offset;
4136 }
4137 }
4138
4139 if (symbolic_header.isymMax > 0) /* local symbols */
4140 {
4141 offset = symbolic_header.cbSymOffset;
4142 for (file_ptr = first_file;
4143 file_ptr != (efdr_t *)0;
4144 file_ptr = file_ptr->next_file)
4145 {
4146 write_varray (&file_ptr->symbols, offset, "Local symbols");
4147 offset = file_offset;
4148 }
4149 }
4150
4151 if (symbolic_header.iauxMax > 0) /* aux symbols */
4152 {
4153 offset = symbolic_header.cbAuxOffset;
4154 for (file_ptr = first_file;
4155 file_ptr != (efdr_t *)0;
4156 file_ptr = file_ptr->next_file)
4157 {
4158 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4159 offset = file_offset;
4160 }
4161 }
4162
4163 if (symbolic_header.issMax > 0) /* local strings */
4164 {
4165 offset = symbolic_header.cbSsOffset;
4166 for (file_ptr = first_file;
4167 file_ptr != (efdr_t *)0;
4168 file_ptr = file_ptr->next_file)
4169 {
4170 write_varray (&file_ptr->strings, offset, "Local strings");
4171 offset = file_offset;
4172 }
4173 }
4174
4175 if (symbolic_header.issExtMax > 0) /* external strings */
4176 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4177
4178 if (symbolic_header.ifdMax > 0) /* file tables */
4179 {
4180 offset = symbolic_header.cbFdOffset;
4181 if (file_offset != offset
4182 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4183 pfatal_with_name (object_name);
4184
4185 file_offset = offset;
4186 for (file_ptr = first_file;
4187 file_ptr != (efdr_t *)0;
4188 file_ptr = file_ptr->next_file)
4189 {
4190 if (debug)
4191 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4192 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4193
4194 sys_write = fwrite (&file_ptr->fdr,
4195 1,
4196 sizeof (FDR),
4197 object_stream);
4198
4199 if (sys_write < 0)
4200 pfatal_with_name (object_name);
4201
4202 else if (sys_write != sizeof (FDR))
4203 fatal ("Wrote %d bytes to %s, system returned %d",
4204 sizeof (FDR),
4205 object_name,
4206 sys_write);
4207
4208 file_offset = offset += sizeof (FDR);
4209 }
4210 }
4211
4212 if (symbolic_header.crfd > 0) /* relative file descriptors */
4213 {
4214 long sys_write;
4215 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4216
4217 if (file_offset != symbolic_header.cbRfdOffset
4218 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4219 pfatal_with_name (object_name);
4220
4221 if (debug)
4222 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4223 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4224 num_write, "Relative file descriptors");
4225
4226 sys_write = fwrite (orig_rfds,
4227 1,
4228 num_write,
4229 object_stream);
4230
4231 if (sys_write <= 0)
4232 pfatal_with_name (object_name);
4233
4234 else if (sys_write != num_write)
4235 fatal ("Wrote %d bytes to %s, system returned %d",
4236 num_write,
4237 object_name,
4238 sys_write);
4239
4240 file_offset = symbolic_header.cbRfdOffset + num_write;
4241 }
4242
4243 if (symbolic_header.issExtMax > 0) /* external symbols */
4244 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4245
4246 if (fclose (object_stream) != 0)
4247 pfatal_with_name (object_name);
4248 }
4249
4250 \f
4251 /* Read some bytes at a specified location, and return a pointer. */
4252
4253 STATIC page_t *
4254 read_seek (size, offset, str)
4255 Size_t size; /* # bytes to read */
4256 off_t offset; /* offset to read at */
4257 const char *str; /* name for tracing */
4258 {
4259 page_t *ptr;
4260 long sys_read = 0;
4261
4262 if (size == 0) /* nothing to read */
4263 return (page_t *)0;
4264
4265 if (debug)
4266 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4267 size, offset, file_offset, str);
4268
4269 #ifndef MALLOC_CHECK
4270 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4271 #else
4272 ptr = (page_t *) xcalloc (1, size);
4273 #endif
4274
4275 /* If we need to seek, and the distance is nearby, just do some reads,
4276 to speed things up. */
4277 if (file_offset != offset)
4278 {
4279 symint_t difference = offset - file_offset;
4280
4281 if (difference < 8)
4282 {
4283 char small_buffer[8];
4284
4285 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4286 if (sys_read <= 0)
4287 pfatal_with_name (obj_in_name);
4288
4289 if (sys_read != difference)
4290 fatal ("Wanted to read %d bytes from %s, system returned %d",
4291 size,
4292 obj_in_name,
4293 sys_read);
4294 }
4295 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4296 pfatal_with_name (obj_in_name);
4297 }
4298
4299 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4300 if (sys_read <= 0)
4301 pfatal_with_name (obj_in_name);
4302
4303 if (sys_read != size)
4304 fatal ("Wanted to read %d bytes from %s, system returned %d",
4305 size,
4306 obj_in_name,
4307 sys_read);
4308
4309 file_offset = offset + size;
4310
4311 if (file_offset > max_file_offset)
4312 max_file_offset = file_offset;
4313
4314 return ptr;
4315 }
4316
4317 \f
4318 /* Read the existing object file (and copy to the output object file
4319 if it is different from the input object file), and remove the old
4320 symbol table. */
4321
4322 STATIC void
4323 copy_object __proto((void))
4324 {
4325 char buffer[ PAGE_SIZE ];
4326 register int sys_read;
4327 register int remaining;
4328 register int num_write;
4329 register int sys_write;
4330 register int fd, es;
4331 register int delete_ifd = 0;
4332 register int *remap_file_number;
4333 struct stat stat_buf;
4334
4335 if (debug)
4336 fprintf (stderr, "\tcopy\n");
4337
4338 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4339 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4340 pfatal_with_name (obj_in_name);
4341
4342 sys_read = fread ((PTR_T) &orig_file_header,
4343 1,
4344 sizeof (struct filehdr),
4345 obj_in_stream);
4346
4347 if (sys_read < 0)
4348 pfatal_with_name (obj_in_name);
4349
4350 else if (sys_read == 0 && feof (obj_in_stream))
4351 return; /* create a .T file sans file header */
4352
4353 else if (sys_read < sizeof (struct filehdr))
4354 fatal ("Wanted to read %d bytes from %s, system returned %d",
4355 sizeof (struct filehdr),
4356 obj_in_name,
4357 sys_read);
4358
4359
4360 if (orig_file_header.f_nsyms != sizeof (HDRR))
4361 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4362 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4363
4364
4365 /* Read in the current symbolic header. */
4366 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4367 pfatal_with_name (input_name);
4368
4369 sys_read = fread ((PTR_T) &orig_sym_hdr,
4370 1,
4371 sizeof (orig_sym_hdr),
4372 obj_in_stream);
4373
4374 if (sys_read < 0)
4375 pfatal_with_name (object_name);
4376
4377 else if (sys_read < sizeof (struct filehdr))
4378 fatal ("Wanted to read %d bytes from %s, system returned %d",
4379 sizeof (struct filehdr),
4380 obj_in_name,
4381 sys_read);
4382
4383
4384 /* Read in each of the sections if they exist in the object file.
4385 We read things in in the order the mips assembler creates the
4386 sections, so in theory no extra seeks are done.
4387
4388 For simplicity sake, round each read up to a page boundary,
4389 we may want to revisit this later.... */
4390
4391 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4392
4393 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4394 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4395 orig_sym_hdr.cbLineOffset,
4396 "Line numbers");
4397
4398 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4399 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4400 orig_sym_hdr.cbPdOffset,
4401 "Procedure tables");
4402
4403 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4404 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4405 orig_sym_hdr.cbSymOffset,
4406 "Local symbols");
4407
4408 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4409 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4410 orig_sym_hdr.cbAuxOffset,
4411 "Aux. symbols");
4412
4413 if (orig_sym_hdr.issMax > 0) /* local strings */
4414 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4415 orig_sym_hdr.cbSsOffset,
4416 "Local strings");
4417
4418 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4419 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4420 orig_sym_hdr.cbSsExtOffset,
4421 "External strings");
4422
4423 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4424 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4425 orig_sym_hdr.cbFdOffset,
4426 "File tables");
4427
4428 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4429 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4430 orig_sym_hdr.cbRfdOffset,
4431 "Relative file descriptors");
4432
4433 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4434 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4435 orig_sym_hdr.cbExtOffset,
4436 "External symbols");
4437
4438 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4439 {
4440 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4441 orig_sym_hdr.cbDnOffset,
4442 "Dense numbers");
4443
4444 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4445 }
4446
4447 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4448 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4449 orig_sym_hdr.cbOptOffset,
4450 "Optimizer symbols");
4451
4452
4453
4454 /* Abort if the symbol table is not last. */
4455 if (max_file_offset != stat_buf.st_size)
4456 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4457 max_file_offset,
4458 stat_buf.st_size);
4459
4460
4461 /* If the first original file descriptor is a dummy which the assembler
4462 put out, but there are no symbols in it, skip it now. */
4463 if (orig_sym_hdr.ifdMax > 1
4464 && orig_files->csym == 2
4465 && orig_files->caux == 0)
4466 {
4467 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4468 char *suffix = rindex (filename, '.');
4469
4470 if (suffix != (char *)0 && strcmp (suffix, ".s") == 0)
4471 delete_ifd = 1;
4472 }
4473
4474
4475 /* Create array to map original file numbers to the new file numbers
4476 (in case there are duplicate filenames, we collapse them into one
4477 file section, the MIPS assembler may or may not collapse them). */
4478
4479 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4480
4481 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4482 {
4483 register FDR *fd_ptr = ORIG_FILES (fd);
4484 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4485
4486 /* file support itself. */
4487 add_file (filename, filename + strlen (filename));
4488 remap_file_number[fd] = cur_file_ptr->file_index;
4489 }
4490
4491 if (delete_ifd > 0) /* just in case */
4492 remap_file_number[0] = remap_file_number[1];
4493
4494
4495 /* Loop, adding each of the external symbols. These must be in
4496 order or otherwise we would have to change the relocation
4497 entries. We don't just call add_bytes, because we need to have
4498 the names put into the external hash table. We set the type to
4499 'void' for now, and parse_def will fill in the correct type if it
4500 is in the symbol table. We must add the external symbols before
4501 the locals, since the locals do lookups against the externals. */
4502
4503 if (debug)
4504 fprintf (stderr, "\tehash\n");
4505
4506 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4507 {
4508 register EXTR *eptr = orig_ext_syms + es;
4509 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4510 register unsigned ifd = eptr->ifd;
4511
4512 (void) add_ext_symbol (ename,
4513 ename + strlen (ename),
4514 (st_t) eptr->asym.st,
4515 (sc_t) eptr->asym.sc,
4516 eptr->asym.value,
4517 (symint_t)((eptr->asym.index == indexNil) ? indexNil : 0),
4518 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4519 }
4520
4521
4522 /* For each of the files in the object file, copy the symbols, and such
4523 into the varrays for the new object file. */
4524
4525 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4526 {
4527 register FDR *fd_ptr = ORIG_FILES (fd);
4528 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4529 register SYMR *sym_start;
4530 register SYMR *sym;
4531 register SYMR *sym_end_p1;
4532 register PDR *proc_start;
4533 register PDR *proc;
4534 register PDR *proc_end_p1;
4535
4536 /* file support itself. */
4537 add_file (filename, filename + strlen (filename));
4538 cur_file_ptr->orig_fdr = fd_ptr;
4539
4540 /* Copy stuff that's just passed through (such as line #'s) */
4541 cur_file_ptr->fdr.adr = fd_ptr->adr;
4542 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4543 cur_file_ptr->fdr.cline = fd_ptr->cline;
4544 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4545 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4546 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4547 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4548 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4549 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4550 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4551
4552 if (debug)
4553 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4554
4555 /* For each of the static and global symbols defined, add them
4556 to the hash table of original symbols, so we can look up
4557 their values. */
4558
4559 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4560 sym_end_p1 = sym_start + fd_ptr->csym;
4561 for (sym = sym_start; sym < sym_end_p1; sym++)
4562 {
4563 switch ((st_t) sym->st)
4564 {
4565 default:
4566 break;
4567
4568 case st_Global:
4569 case st_Static:
4570 case st_Label:
4571 case st_Proc:
4572 case st_StaticProc:
4573 {
4574 auto symint_t hash_index;
4575 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4576 register Size_t len = strlen (str);
4577 register shash_t *shash_ptr = hash_string (str,
4578 (Ptrdiff_t)len,
4579 &orig_str_hash[0],
4580 &hash_index);
4581
4582 if (shash_ptr != (shash_t *)0)
4583 error ("internal error, %s is already in original symbol table", str);
4584
4585 else
4586 {
4587 shash_ptr = allocate_shash ();
4588 shash_ptr->next = orig_str_hash[hash_index];
4589 orig_str_hash[hash_index] = shash_ptr;
4590
4591 shash_ptr->len = len;
4592 shash_ptr->index = indexNil;
4593 shash_ptr->string = str;
4594 shash_ptr->sym_ptr = sym;
4595 }
4596 }
4597 break;
4598
4599 case st_End:
4600 if ((sc_t) sym->sc == sc_Text)
4601 {
4602 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4603
4604 if (*str != '\0')
4605 {
4606 register Size_t len = strlen (str);
4607 register shash_t *shash_ptr = hash_string (str,
4608 (Ptrdiff_t)len,
4609 &orig_str_hash[0],
4610 (symint_t *)0);
4611
4612 if (shash_ptr != (shash_t *)0)
4613 shash_ptr->end_ptr = sym;
4614 }
4615 }
4616 break;
4617
4618 }
4619 }
4620
4621 if (debug)
4622 {
4623 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4624 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4625 }
4626
4627 /* Go through each of the procedures in this file, and add the
4628 procedure pointer to the hash entry for the given name. */
4629
4630 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4631 proc_end_p1 = proc_start + fd_ptr->cpd;
4632 for (proc = proc_start; proc < proc_end_p1; proc++)
4633 {
4634 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4635 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4636 register Size_t len = strlen (str);
4637 register shash_t *shash_ptr = hash_string (str,
4638 (Ptrdiff_t)len,
4639 &orig_str_hash[0],
4640 (symint_t *)0);
4641
4642 if (shash_ptr == (shash_t *)0)
4643 error ("internal error, function %s is not in original symbol table", str);
4644
4645 else
4646 shash_ptr->proc_ptr = proc;
4647 }
4648
4649 if (debug)
4650 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4651
4652 }
4653 cur_file_ptr = first_file;
4654
4655
4656 /* Copy all of the object file up to the symbol table. Originally
4657 we were going to use ftruncate, but that doesn't seem to work
4658 on Ultrix 3.1.... */
4659
4660 if (fseek (obj_in_stream, (long)0, SEEK_SET) != 0)
4661 pfatal_with_name (obj_in_name);
4662
4663 if (fseek (object_stream, (long)0, SEEK_SET) != 0)
4664 pfatal_with_name (object_name);
4665
4666 for (remaining = orig_file_header.f_symptr;
4667 remaining > 0;
4668 remaining -= num_write)
4669 {
4670 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4671 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4672 if (sys_read <= 0)
4673 pfatal_with_name (obj_in_name);
4674
4675 else if (sys_read != num_write)
4676 fatal ("Wanted to read %d bytes from %s, system returned %d",
4677 num_write,
4678 obj_in_name,
4679 sys_read);
4680
4681 sys_write = fwrite (buffer, 1, num_write, object_stream);
4682 if (sys_write <= 0)
4683 pfatal_with_name (object_name);
4684
4685 else if (sys_write != num_write)
4686 fatal ("Wrote %d bytes to %s, system returned %d",
4687 num_write,
4688 object_name,
4689 sys_write);
4690 }
4691 }
4692
4693 \f
4694 /* Ye olde main program. */
4695
4696 int
4697 main (argc, argv)
4698 int argc;
4699 char *argv[];
4700 {
4701 int iflag = 0;
4702 char *p = rindex (argv[0], '/');
4703 char *num_end;
4704 int option;
4705 int i;
4706
4707 progname = (p != 0) ? p+1 : argv[0];
4708
4709 (void) signal (SIGSEGV, catch_signal);
4710 (void) signal (SIGBUS, catch_signal);
4711 (void) signal (SIGABRT, catch_signal);
4712
4713 #if !defined(__SABER__) && !defined(lint)
4714 if (sizeof (efdr_t) > PAGE_USIZE)
4715 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4716 sizeof (efdr_t),
4717 PAGE_USIZE);
4718
4719 if (sizeof (page_t) != PAGE_USIZE)
4720 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4721 sizeof (page_t),
4722 PAGE_USIZE);
4723
4724 #endif
4725
4726 alloc_counts[ alloc_type_none ].alloc_name = "none";
4727 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4728 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4729 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4730 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4731 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4732 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4733 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4734 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4735
4736 int_type_info = type_info_init;
4737 int_type_info.basic_type = bt_Int;
4738
4739 void_type_info = type_info_init;
4740 void_type_info.basic_type = bt_Void;
4741
4742 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4743 switch (option)
4744 {
4745 default:
4746 had_errors++;
4747 break;
4748
4749 case 'd':
4750 debug = strtol (optarg, &num_end, 0);
4751 if ((unsigned)debug > 4 || num_end == optarg)
4752 had_errors++;
4753
4754 break;
4755
4756 case 'I':
4757 if (rename_output || obj_in_name != (char *)0)
4758 had_errors++;
4759 else
4760 rename_output = 1;
4761
4762 /* fall through to 'i' case. */
4763
4764 case 'i':
4765 if (obj_in_name == (char *)0)
4766 {
4767 obj_in_name = optarg;
4768 iflag++;
4769 }
4770 else
4771 had_errors++;
4772 break;
4773
4774 case 'o':
4775 if (object_name == (char *)0)
4776 object_name = optarg;
4777 else
4778 had_errors++;
4779 break;
4780
4781 case 'v':
4782 version++;
4783 break;
4784 }
4785
4786 if (obj_in_name == (char *)0 && optind <= argc - 2)
4787 obj_in_name = argv[--argc];
4788
4789 if (object_name == (char *)0 && optind <= argc - 2)
4790 object_name = argv[--argc];
4791
4792 /* If there is an output name, but no input name use
4793 the same file for both, deleting the name between
4794 opening it for input and opening it for output. */
4795 if (obj_in_name == (char *)0 && object_name != (char *)0)
4796 {
4797 obj_in_name = object_name;
4798 delete_input = 1;
4799 }
4800
4801 if (object_name == (char *)0 || had_errors || optind != argc - 1)
4802 {
4803 fprintf (stderr, "Calling Sequence:\n");
4804 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4805 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4806 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4807 fprintf (stderr, "\n");
4808 fprintf (stderr, "Debug levels are:\n");
4809 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4810 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4811 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4812 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4813 return 1;
4814 }
4815
4816
4817 if (version)
4818 {
4819 fprintf (stderr, "mips-tfile version %s", version_string);
4820 #ifdef TARGET_VERSION
4821 TARGET_VERSION;
4822 #endif
4823 fputc ('\n', stderr);
4824 }
4825
4826 if (obj_in_name == (char *)0)
4827 obj_in_name = object_name;
4828
4829 if (rename_output && rename (object_name, obj_in_name) != 0)
4830 {
4831 char *buffer = (char *) allocate_multiple_pages (4);
4832 int len;
4833 int len2;
4834 int in_fd;
4835 int out_fd;
4836
4837 /* Rename failed, copy input file */
4838 in_fd = open (object_name, O_RDONLY, 0666);
4839 if (in_fd < 0)
4840 pfatal_with_name (object_name);
4841
4842 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4843 if (out_fd < 0)
4844 pfatal_with_name (obj_in_name);
4845
4846 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
4847 {
4848 len2 = write (out_fd, buffer, len);
4849 if (len2 < 0)
4850 pfatal_with_name (object_name);
4851
4852 if (len != len2)
4853 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
4854 }
4855
4856 free_multiple_pages ((page_t *)buffer, 4);
4857
4858 if (len < 0)
4859 pfatal_with_name (object_name);
4860
4861 if (close (in_fd) < 0)
4862 pfatal_with_name (object_name);
4863
4864 if (close (out_fd) < 0)
4865 pfatal_with_name (obj_in_name);
4866 }
4867
4868 /* Must open input before output, since the output may be the same file, and
4869 we need to get the input handle before truncating it. */
4870 obj_in_stream = fopen (obj_in_name, "r");
4871 if (obj_in_stream == (FILE *)0)
4872 pfatal_with_name (obj_in_name);
4873
4874 if (delete_input && unlink (obj_in_name) != 0)
4875 pfatal_with_name (obj_in_name);
4876
4877 object_stream = fopen (object_name, "w");
4878 if (object_stream == (FILE *)0)
4879 pfatal_with_name (object_name);
4880
4881 if (strcmp (argv[optind], "-") != 0)
4882 {
4883 input_name = argv[optind];
4884 if (freopen (argv[optind], "r", stdin) != stdin)
4885 pfatal_with_name (argv[optind]);
4886 }
4887
4888 copy_object (); /* scan & copy object file */
4889 parse_input (); /* scan all of input */
4890
4891 update_headers (); /* write out tfile */
4892 write_object ();
4893
4894 if (debug)
4895 {
4896 fprintf (stderr, "\n\tAllocation summary:\n\n");
4897 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
4898 if (alloc_counts[i].total_alloc)
4899 {
4900 fprintf (stderr,
4901 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
4902 alloc_counts[i].alloc_name,
4903 alloc_counts[i].total_alloc,
4904 alloc_counts[i].total_free,
4905 alloc_counts[i].total_pages);
4906 }
4907 }
4908
4909 return (had_errors) ? 1 : 0;
4910 }
4911
4912 \f
4913 /* Catch a signal and exit without dumping core. */
4914
4915 STATIC void
4916 catch_signal (signum)
4917 int signum;
4918 {
4919 (void) signal (signum, SIG_DFL); /* just in case... */
4920 fatal (sys_siglist[signum]);
4921 }
4922
4923 /* Print a fatal error message. NAME is the text.
4924 Also include a system error message based on `errno'. */
4925
4926 void
4927 pfatal_with_name (msg)
4928 char *msg;
4929 {
4930 int save_errno = errno; /* just in case.... */
4931 if (line_number > 0)
4932 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
4933 else
4934 fprintf (stderr, "%s:", progname);
4935
4936 errno = save_errno;
4937 if (errno == 0)
4938 fprintf (stderr, "[errno = 0] %s\n", msg);
4939 else
4940 perror (msg);
4941
4942 exit (1);
4943 }
4944
4945 \f
4946 /* Procedure to abort with an out of bounds error message. It has
4947 type int, so it can be used with an ?: expression within the
4948 ORIG_xxx macros, but the function never returns. */
4949
4950 static int
4951 out_of_bounds (index, max, str, prog_line)
4952 symint_t index; /* index that is out of bounds */
4953 symint_t max; /* maximum index */
4954 const char *str; /* string to print out */
4955 int prog_line; /* line number within mips-tfile.c */
4956 {
4957 if (index < max) /* just in case */
4958 return 0;
4959
4960 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
4961 progname, input_name, line_number, index, str, max, prog_line);
4962
4963 exit (1);
4964 return 0; /* turn off warning messages */
4965 }
4966
4967 \f
4968 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
4969 like sbrk's behind it's back (or sbrk isn't available). If we use
4970 sbrk, we assume it gives us zeroed pages. */
4971
4972 #ifndef MALLOC_CHECK
4973 #ifdef USE_MALLOC
4974
4975 STATIC page_t *
4976 allocate_cluster (npages)
4977 Size_t npages;
4978 {
4979 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
4980
4981 if (value == 0)
4982 fatal ("Virtual memory exhausted.");
4983
4984 if (debug > 3)
4985 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
4986
4987 return value;
4988 }
4989
4990 #else /* USE_MALLOC */
4991
4992 STATIC page_t *
4993 allocate_cluster (npages)
4994 Size_t npages;
4995 {
4996 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
4997 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
4998
4999 if (offset != 0) /* align to a page boundary */
5000 {
5001 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5002 pfatal_with_name ("allocate_cluster");
5003
5004 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5005 }
5006
5007 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5008 pfatal_with_name ("allocate_cluster");
5009
5010 if (debug > 3)
5011 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5012
5013 return ptr;
5014 }
5015
5016 #endif /* USE_MALLOC */
5017
5018
5019 static page_t *cluster_ptr = NULL;
5020 static unsigned pages_left = 0;
5021
5022 #endif /* MALLOC_CHECK */
5023
5024
5025 /* Allocate some pages (which is initialized to 0). */
5026
5027 STATIC page_t *
5028 allocate_multiple_pages (npages)
5029 Size_t npages;
5030 {
5031 #ifndef MALLOC_CHECK
5032 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5033 {
5034 pages_left = MAX_CLUSTER_PAGES;
5035 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5036 }
5037
5038 if (npages <= pages_left)
5039 {
5040 page_t *ptr = cluster_ptr;
5041 cluster_ptr += npages;
5042 pages_left -= npages;
5043 return ptr;
5044 }
5045
5046 return allocate_cluster (npages);
5047
5048 #else /* MALLOC_CHECK */
5049 return (page_t *) xcalloc (npages, PAGE_SIZE);
5050
5051 #endif /* MALLOC_CHECK */
5052 }
5053
5054
5055 /* Release some pages. */
5056
5057 STATIC void
5058 free_multiple_pages (page_ptr, npages)
5059 page_t *page_ptr;
5060 Size_t npages;
5061 {
5062 #ifndef MALLOC_CHECK
5063 if (pages_left == 0)
5064 {
5065 cluster_ptr = page_ptr;
5066 pages_left = npages;
5067 }
5068
5069 else if ((page_ptr + npages) == cluster_ptr)
5070 {
5071 cluster_ptr -= npages;
5072 pages_left += npages;
5073 }
5074
5075 /* otherwise the page is not freed. If more than call is
5076 done, we probably should worry about it, but at present,
5077 the free pages is done right after an allocate. */
5078
5079 #else /* MALLOC_CHECK */
5080 free ((char *) page_ptr);
5081
5082 #endif /* MALLOC_CHECK */
5083 }
5084
5085
5086 /* Allocate one page (which is initialized to 0). */
5087
5088 STATIC page_t *
5089 allocate_page __proto((void))
5090 {
5091 #ifndef MALLOC_CHECK
5092 if (pages_left == 0)
5093 {
5094 pages_left = MAX_CLUSTER_PAGES;
5095 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5096 }
5097
5098 pages_left--;
5099 return cluster_ptr++;
5100
5101 #else /* MALLOC_CHECK */
5102 return (page_t *) xcalloc (1, PAGE_SIZE);
5103
5104 #endif /* MALLOC_CHECK */
5105 }
5106
5107 \f
5108 /* Allocate scoping information. */
5109
5110 STATIC scope_t *
5111 allocate_scope __proto((void))
5112 {
5113 register scope_t *ptr;
5114 static scope_t initial_scope;
5115
5116 #ifndef MALLOC_CHECK
5117 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5118 if (ptr != (scope_t *)0)
5119 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5120
5121 else
5122 {
5123 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5124 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5125
5126 if (unallocated == 0)
5127 {
5128 unallocated = PAGE_SIZE / sizeof (scope_t);
5129 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5130 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5131 }
5132
5133 ptr = &cur_page->scope[ --unallocated ];
5134 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5135 }
5136
5137 #else
5138 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5139
5140 #endif
5141
5142 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5143 *ptr = initial_scope;
5144 return ptr;
5145 }
5146
5147 /* Free scoping information. */
5148
5149 STATIC void
5150 free_scope (ptr)
5151 scope_t *ptr;
5152 {
5153 alloc_counts[ (int)alloc_type_scope ].total_free++;
5154
5155 #ifndef MALLOC_CHECK
5156 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5157 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5158
5159 #else
5160 xfree ((PTR_T) ptr);
5161 #endif
5162
5163 }
5164
5165 \f
5166 /* Allocate links for pages in a virtual array. */
5167
5168 STATIC vlinks_t *
5169 allocate_vlinks __proto((void))
5170 {
5171 register vlinks_t *ptr;
5172 static vlinks_t initial_vlinks;
5173
5174 #ifndef MALLOC_CHECK
5175 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5176 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5177
5178 if (unallocated == 0)
5179 {
5180 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5181 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5182 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5183 }
5184
5185 ptr = &cur_page->vlinks[ --unallocated ];
5186 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5187
5188 #else
5189 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5190
5191 #endif
5192
5193 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5194 *ptr = initial_vlinks;
5195 return ptr;
5196 }
5197
5198 \f
5199 /* Allocate string hash buckets. */
5200
5201 STATIC shash_t *
5202 allocate_shash __proto((void))
5203 {
5204 register shash_t *ptr;
5205 static shash_t initial_shash;
5206
5207 #ifndef MALLOC_CHECK
5208 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5209 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5210
5211 if (unallocated == 0)
5212 {
5213 unallocated = PAGE_SIZE / sizeof (shash_t);
5214 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5215 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5216 }
5217
5218 ptr = &cur_page->shash[ --unallocated ];
5219 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5220
5221 #else
5222 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5223
5224 #endif
5225
5226 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5227 *ptr = initial_shash;
5228 return ptr;
5229 }
5230
5231 \f
5232 /* Allocate type hash buckets. */
5233
5234 STATIC thash_t *
5235 allocate_thash __proto((void))
5236 {
5237 register thash_t *ptr;
5238 static thash_t initial_thash;
5239
5240 #ifndef MALLOC_CHECK
5241 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5242 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5243
5244 if (unallocated == 0)
5245 {
5246 unallocated = PAGE_SIZE / sizeof (thash_t);
5247 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5248 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5249 }
5250
5251 ptr = &cur_page->thash[ --unallocated ];
5252 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5253
5254 #else
5255 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5256
5257 #endif
5258
5259 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5260 *ptr = initial_thash;
5261 return ptr;
5262 }
5263
5264 \f
5265 /* Allocate structure, union, or enum tag information. */
5266
5267 STATIC tag_t *
5268 allocate_tag __proto((void))
5269 {
5270 register tag_t *ptr;
5271 static tag_t initial_tag;
5272
5273 #ifndef MALLOC_CHECK
5274 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5275 if (ptr != (tag_t *)0)
5276 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5277
5278 else
5279 {
5280 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5281 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5282
5283 if (unallocated == 0)
5284 {
5285 unallocated = PAGE_SIZE / sizeof (tag_t);
5286 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5287 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5288 }
5289
5290 ptr = &cur_page->tag[ --unallocated ];
5291 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5292 }
5293
5294 #else
5295 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5296
5297 #endif
5298
5299 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5300 *ptr = initial_tag;
5301 return ptr;
5302 }
5303
5304 /* Free scoping information. */
5305
5306 STATIC void
5307 free_tag (ptr)
5308 tag_t *ptr;
5309 {
5310 alloc_counts[ (int)alloc_type_tag ].total_free++;
5311
5312 #ifndef MALLOC_CHECK
5313 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5314 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5315
5316 #else
5317 xfree ((PTR_T) ptr);
5318 #endif
5319
5320 }
5321
5322 \f
5323 /* Allocate forward reference to a yet unknown tag. */
5324
5325 STATIC forward_t *
5326 allocate_forward __proto((void))
5327 {
5328 register forward_t *ptr;
5329 static forward_t initial_forward;
5330
5331 #ifndef MALLOC_CHECK
5332 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5333 if (ptr != (forward_t *)0)
5334 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5335
5336 else
5337 {
5338 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5339 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5340
5341 if (unallocated == 0)
5342 {
5343 unallocated = PAGE_SIZE / sizeof (forward_t);
5344 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5345 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5346 }
5347
5348 ptr = &cur_page->forward[ --unallocated ];
5349 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5350 }
5351
5352 #else
5353 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5354
5355 #endif
5356
5357 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5358 *ptr = initial_forward;
5359 return ptr;
5360 }
5361
5362 /* Free scoping information. */
5363
5364 STATIC void
5365 free_forward (ptr)
5366 forward_t *ptr;
5367 {
5368 alloc_counts[ (int)alloc_type_forward ].total_free++;
5369
5370 #ifndef MALLOC_CHECK
5371 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5372 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5373
5374 #else
5375 xfree ((PTR_T) ptr);
5376 #endif
5377
5378 }
5379
5380 \f
5381 /* Allocate head of type hash list. */
5382
5383 STATIC thead_t *
5384 allocate_thead __proto((void))
5385 {
5386 register thead_t *ptr;
5387 static thead_t initial_thead;
5388
5389 #ifndef MALLOC_CHECK
5390 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5391 if (ptr != (thead_t *)0)
5392 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5393
5394 else
5395 {
5396 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5397 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5398
5399 if (unallocated == 0)
5400 {
5401 unallocated = PAGE_SIZE / sizeof (thead_t);
5402 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5403 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5404 }
5405
5406 ptr = &cur_page->thead[ --unallocated ];
5407 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5408 }
5409
5410 #else
5411 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5412
5413 #endif
5414
5415 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5416 *ptr = initial_thead;
5417 return ptr;
5418 }
5419
5420 /* Free scoping information. */
5421
5422 STATIC void
5423 free_thead (ptr)
5424 thead_t *ptr;
5425 {
5426 alloc_counts[ (int)alloc_type_thead ].total_free++;
5427
5428 #ifndef MALLOC_CHECK
5429 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5430 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5431
5432 #else
5433 xfree ((PTR_T) ptr);
5434 #endif
5435
5436 }
5437
5438 #endif /* MIPS_DEBUGGING_INFO *?
5439
5440 \f
5441 /* Output an error message and exit */
5442
5443 /*VARARGS*/
5444 void
5445 fatal (va_alist)
5446 va_dcl
5447 {
5448 va_list ap;
5449 char *format;
5450
5451 if (line_number > 0)
5452 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5453 else
5454 fprintf (stderr, "%s:", progname);
5455
5456 va_start(ap);
5457 format = va_arg (ap, char *);
5458 vfprintf (stderr, format, ap);
5459 va_end (ap);
5460 fprintf (stderr, "\n");
5461 if (line_number > 0)
5462 fprintf (stderr, "line:\t%s\n", cur_line_start);
5463
5464 saber_stop ();
5465 exit (1);
5466 }
5467
5468 /*VARARGS*/
5469 void
5470 error (va_alist)
5471 va_dcl
5472 {
5473 va_list ap;
5474 char *format;
5475
5476 if (line_number > 0)
5477 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5478 else
5479 fprintf (stderr, "%s:", progname);
5480
5481 va_start(ap);
5482 format = va_arg (ap, char *);
5483 vfprintf (stderr, format, ap);
5484 fprintf (stderr, "\n");
5485 if (line_number > 0)
5486 fprintf (stderr, "line:\t%s\n", cur_line_start);
5487
5488 had_errors++;
5489 va_end (ap);
5490
5491 saber_stop ();
5492 }
5493
5494 /* More 'friendly' abort that prints the line and file.
5495 config.h can #define abort fancy_abort if you like that sort of thing. */
5496
5497 void
5498 fancy_abort ()
5499 {
5500 fatal ("Internal abort.");
5501 }
5502 \f
5503
5504 /* When `malloc.c' is compiled with `rcheck' defined,
5505 it calls this function to report clobberage. */
5506
5507 void
5508 botch (s)
5509 const char *s;
5510 {
5511 fatal (s);
5512 }
5513
5514 /* Same as `malloc' but report error if no memory available. */
5515
5516 PTR_T
5517 xmalloc (size)
5518 Size_t size;
5519 {
5520 register PTR_T value = malloc (size);
5521 if (value == 0)
5522 fatal ("Virtual memory exhausted.");
5523
5524 if (debug > 3)
5525 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5526
5527 return value;
5528 }
5529
5530 /* Same as `calloc' but report error if no memory available. */
5531
5532 PTR_T
5533 xcalloc (size1, size2)
5534 Size_t size1, size2;
5535 {
5536 register PTR_T value = calloc (size1, size2);
5537 if (value == 0)
5538 fatal ("Virtual memory exhausted.");
5539
5540 if (debug > 3)
5541 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5542 value, size1, size2, size1+size2);
5543
5544 return value;
5545 }
5546
5547 /* Same as `realloc' but report error if no memory available. */
5548
5549 PTR_T
5550 xrealloc (ptr, size)
5551 PTR_T ptr;
5552 Size_t size;
5553 {
5554 register PTR_T result = realloc (ptr, size);
5555 if (!result)
5556 fatal ("Virtual memory exhausted.");
5557
5558 if (debug > 3)
5559 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5560 result, size, ptr);
5561
5562 return result;
5563 }
5564
5565 void
5566 xfree (ptr)
5567 PTR_T ptr;
5568 {
5569 if (debug > 3)
5570 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5571
5572 free (ptr);
5573 }
GNU Compiler Collection
This page took 0.287983 seconds and 6 git commands to generate.