?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Import final gcc2 snapshot (990109)
[official-gcc.git] / gcc / mips-tfile.c
blobd757b9b087a9b0d551246bcc7161e4f7bb1a559c
1 /* Update the symbol table (the .T file) in a MIPS object to
2 contain debugging information specified by the GNU compiler
3 in the form of comments (the mips assembler does not support
4 assembly access to debug information).
5 Copyright (C) 1991, 93, 94, 95, 97, 1998 Free Software Foundation, Inc.
6 Contributed by Michael Meissner (meissner@cygnus.com).
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, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA. */
24
25 \f
26 /* Here is a brief description of the MIPS ECOFF symbol table. The
27 MIPS symbol table has the following pieces:
28
29 Symbolic Header
30 |
31 +-- Auxiliary Symbols
32 |
33 +-- Dense number table
34 |
35 +-- Optimizer Symbols
36 |
37 +-- External Strings
38 |
39 +-- External Symbols
40 |
41 +-- Relative file descriptors
42 |
43 +-- File table
44 |
45 +-- Procedure table
46 |
47 +-- Line number table
48 |
49 +-- Local Strings
50 |
51 +-- Local Symbols
52
53 The symbolic header points to each of the other tables, and also
54 contains the number of entries. It also contains a magic number
55 and MIPS compiler version number, such as 2.0.
56
57 The auxiliary table is a series of 32 bit integers, that are
58 referenced as needed from the local symbol table. Unlike standard
59 COFF, the aux. information does not follow the symbol that uses
60 it, but rather is a separate table. In theory, this would allow
61 the MIPS compilers to collapse duplicate aux. entries, but I've not
62 noticed this happening with the 1.31 compiler suite. The different
63 types of aux. entries are:
64
65 1) dnLow: Low bound on array dimension.
66
67 2) dnHigh: High bound on array dimension.
68
69 3) isym: Index to the local symbol which is the start of the
70 function for the end of function first aux. entry.
71
72 4) width: Width of structures and bitfields.
73
74 5) count: Count of ranges for variant part.
75
76 6) rndx: A relative index into the symbol table. The relative
77 index field has two parts: rfd which is a pointer into the
78 relative file index table or ST_RFDESCAPE which says the next
79 aux. entry is the file number, and index: which is the pointer
80 into the local symbol within a given file table. This is for
81 things like references to types defined in another file.
82
83 7) Type information: This is like the COFF type bits, except it
84 is 32 bits instead of 16; they still have room to add new
85 basic types; and they can handle more than 6 levels of array,
86 pointer, function, etc. Each type information field contains
87 the following structure members:
88
89 a) fBitfield: a bit that says this is a bitfield, and the
90 size in bits follows as the next aux. entry.
91
92 b) continued: a bit that says the next aux. entry is a
93 continuation of the current type information (in case
94 there are more than 6 levels of array/ptr/function).
95
96 c) bt: an integer containing the base type before adding
97 array, pointer, function, etc. qualifiers. The
98 current base types that I have documentation for are:
99
100 btNil -- undefined
101 btAdr -- address - integer same size as ptr
102 btChar -- character
103 btUChar -- unsigned character
104 btShort -- short
105 btUShort -- unsigned short
106 btInt -- int
107 btUInt -- unsigned int
108 btLong -- long
109 btULong -- unsigned long
110 btFloat -- float (real)
111 btDouble -- Double (real)
112 btStruct -- Structure (Record)
113 btUnion -- Union (variant)
114 btEnum -- Enumerated
115 btTypedef -- defined via a typedef isymRef
116 btRange -- subrange of int
117 btSet -- pascal sets
118 btComplex -- fortran complex
119 btDComplex -- fortran double complex
120 btIndirect -- forward or unnamed typedef
121 btFixedDec -- Fixed Decimal
122 btFloatDec -- Float Decimal
123 btString -- Varying Length Character String
124 btBit -- Aligned Bit String
125 btPicture -- Picture
126 btVoid -- Void (MIPS cc revision >= 2.00)
127
128 d) tq0 - tq5: type qualifier fields as needed. The
129 current type qualifier fields I have documentation for
130 are:
131
132 tqNil -- no more qualifiers
133 tqPtr -- pointer
134 tqProc -- procedure
135 tqArray -- array
136 tqFar -- 8086 far pointers
137 tqVol -- volatile
138
139
140 The dense number table is used in the front ends, and disappears by
141 the time the .o is created.
142
143 With the 1.31 compiler suite, the optimization symbols don't seem
144 to be used as far as I can tell.
145
146 The linker is the first entity that creates the relative file
147 descriptor table, and I believe it is used so that the individual
148 file table pointers don't have to be rewritten when the objects are
149 merged together into the program file.
150
151 Unlike COFF, the basic symbol & string tables are split into
152 external and local symbols/strings. The relocation information
153 only goes off of the external symbol table, and the debug
154 information only goes off of the internal symbol table. The
155 external symbols can have links to an appropriate file index and
156 symbol within the file to give it the appropriate type information.
157 Because of this, the external symbols are actually larger than the
158 internal symbols (to contain the link information), and contain the
159 local symbol structure as a member, though this member is not the
160 first member of the external symbol structure (!). I suspect this
161 split is to make strip easier to deal with.
162
163 Each file table has offsets for where the line numbers, local
164 strings, local symbols, and procedure table starts from within the
165 global tables, and the indexs are reset to 0 for each of those
166 tables for the file.
167
168 The procedure table contains the binary equivalents of the .ent
169 (start of the function address), .frame (what register is the
170 virtual frame pointer, constant offset from the register to obtain
171 the VFP, and what register holds the return address), .mask/.fmask
172 (bitmask of saved registers, and where the first register is stored
173 relative to the VFP) assembler directives. It also contains the
174 low and high bounds of the line numbers if debugging is turned on.
175
176 The line number table is a compressed form of the normal COFF line
177 table. Each line number entry is either 1 or 3 bytes long, and
178 contains a signed delta from the previous line, and an unsigned
179 count of the number of instructions this statement takes.
180
181 The local symbol table contains the following fields:
182
183 1) iss: index to the local string table giving the name of the
184 symbol.
185
186 2) value: value of the symbol (address, register number, etc.).
187
188 3) st: symbol type. The current symbol types are:
189
190 stNil -- Nuthin' special
191 stGlobal -- external symbol
192 stStatic -- static
193 stParam -- procedure argument
194 stLocal -- local variable
195 stLabel -- label
196 stProc -- External Procedure
197 stBlock -- beginning of block
198 stEnd -- end (of anything)
199 stMember -- member (of anything)
200 stTypedef -- type definition
201 stFile -- file name
202 stRegReloc -- register relocation
203 stForward -- forwarding address
204 stStaticProc -- Static procedure
205 stConstant -- const
206
207 4) sc: storage class. The current storage classes are:
208
209 scText -- text symbol
210 scData -- initialized data symbol
211 scBss -- un-initialized data symbol
212 scRegister -- value of symbol is register number
213 scAbs -- value of symbol is absolute
214 scUndefined -- who knows?
215 scCdbLocal -- variable's value is IN se->va.??
216 scBits -- this is a bit field
217 scCdbSystem -- value is IN debugger's address space
218 scRegImage -- register value saved on stack
219 scInfo -- symbol contains debugger information
220 scUserStruct -- addr in struct user for current process
221 scSData -- load time only small data
222 scSBss -- load time only small common
223 scRData -- load time only read only data
224 scVar -- Var parameter (fortranpascal)
225 scCommon -- common variable
226 scSCommon -- small common
227 scVarRegister -- Var parameter in a register
228 scVariant -- Variant record
229 scSUndefined -- small undefined(external) data
230 scInit -- .init section symbol
231
232 5) index: pointer to a local symbol or aux. entry.
233
234
235
236 For the following program:
237
238 #include <stdio.h>
239
240 main(){
241 printf("Hello World!\n");
242 return 0;
243 }
244
245 Mips-tdump produces the following information:
246
247 Global file header:
248 magic number 0x162
249 # sections 2
250 timestamp 645311799, Wed Jun 13 17:16:39 1990
251 symbolic header offset 284
252 symbolic header size 96
253 optional header 56
254 flags 0x0
255
256 Symbolic header, magic number = 0x7009, vstamp = 1.31:
257
258 Info Offset Number Bytes
259 ==== ====== ====== =====
260
261 Line numbers 380 4 4 [13]
262 Dense numbers 0 0 0
263 Procedures Tables 384 1 52
264 Local Symbols 436 16 192
265 Optimization Symbols 0 0 0
266 Auxiliary Symbols 628 39 156
267 Local Strings 784 80 80
268 External Strings 864 144 144
269 File Tables 1008 2 144
270 Relative Files 0 0 0
271 External Symbols 1152 20 320
272
273 File #0, "hello2.c"
274
275 Name index = 1 Readin = No
276 Merge = No Endian = LITTLE
277 Debug level = G2 Language = C
278 Adr = 0x00000000
279
280 Info Start Number Size Offset
281 ==== ===== ====== ==== ======
282 Local strings 0 15 15 784
283 Local symbols 0 6 72 436
284 Line numbers 0 13 13 380
285 Optimization symbols 0 0 0 0
286 Procedures 0 1 52 384
287 Auxiliary symbols 0 14 56 628
288 Relative Files 0 0 0 0
289
290 There are 6 local symbols, starting at 436
291
292 Symbol# 0: "hello2.c"
293 End+1 symbol = 6
294 String index = 1
295 Storage class = Text Index = 6
296 Symbol type = File Value = 0
297
298 Symbol# 1: "main"
299 End+1 symbol = 5
300 Type = int
301 String index = 10
302 Storage class = Text Index = 12
303 Symbol type = Proc Value = 0
304
305 Symbol# 2: ""
306 End+1 symbol = 4
307 String index = 0
308 Storage class = Text Index = 4
309 Symbol type = Block Value = 8
310
311 Symbol# 3: ""
312 First symbol = 2
313 String index = 0
314 Storage class = Text Index = 2
315 Symbol type = End Value = 28
316
317 Symbol# 4: "main"
318 First symbol = 1
319 String index = 10
320 Storage class = Text Index = 1
321 Symbol type = End Value = 52
322
323 Symbol# 5: "hello2.c"
324 First symbol = 0
325 String index = 1
326 Storage class = Text Index = 0
327 Symbol type = End Value = 0
328
329 There are 14 auxiliary table entries, starting at 628.
330
331 * #0 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
332 * #1 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
333 * #2 8, [ 8/ 0], [ 2 0:0 0:0:0:0:0:0]
334 * #3 16, [ 16/ 0], [ 4 0:0 0:0:0:0:0:0]
335 * #4 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
336 * #5 32, [ 32/ 0], [ 8 0:0 0:0:0:0:0:0]
337 * #6 40, [ 40/ 0], [10 0:0 0:0:0:0:0:0]
338 * #7 44, [ 44/ 0], [11 0:0 0:0:0:0:0:0]
339 * #8 12, [ 12/ 0], [ 3 0:0 0:0:0:0:0:0]
340 * #9 20, [ 20/ 0], [ 5 0:0 0:0:0:0:0:0]
341 * #10 28, [ 28/ 0], [ 7 0:0 0:0:0:0:0:0]
342 * #11 36, [ 36/ 0], [ 9 0:0 0:0:0:0:0:0]
343 #12 5, [ 5/ 0], [ 1 1:0 0:0:0:0:0:0]
344 #13 24, [ 24/ 0], [ 6 0:0 0:0:0:0:0:0]
345
346 There are 1 procedure descriptor entries, starting at 0.
347
348 Procedure descriptor 0:
349 Name index = 10 Name = "main"
350 .mask 0x80000000,-4 .fmask 0x00000000,0
351 .frame $29,24,$31
352 Opt. start = -1 Symbols start = 1
353 First line # = 3 Last line # = 6
354 Line Offset = 0 Address = 0x00000000
355
356 There are 4 bytes holding line numbers, starting at 380.
357 Line 3, delta 0, count 2
358 Line 4, delta 1, count 3
359 Line 5, delta 1, count 2
360 Line 6, delta 1, count 6
361
362 File #1, "/usr/include/stdio.h"
363
364 Name index = 1 Readin = No
365 Merge = Yes Endian = LITTLE
366 Debug level = G2 Language = C
367 Adr = 0x00000000
368
369 Info Start Number Size Offset
370 ==== ===== ====== ==== ======
371 Local strings 15 65 65 799
372 Local symbols 6 10 120 508
373 Line numbers 0 0 0 380
374 Optimization symbols 0 0 0 0
375 Procedures 1 0 0 436
376 Auxiliary symbols 14 25 100 684
377 Relative Files 0 0 0 0
378
379 There are 10 local symbols, starting at 442
380
381 Symbol# 0: "/usr/include/stdio.h"
382 End+1 symbol = 10
383 String index = 1
384 Storage class = Text Index = 10
385 Symbol type = File Value = 0
386
387 Symbol# 1: "_iobuf"
388 End+1 symbol = 9
389 String index = 22
390 Storage class = Info Index = 9
391 Symbol type = Block Value = 20
392
393 Symbol# 2: "_cnt"
394 Type = int
395 String index = 29
396 Storage class = Info Index = 4
397 Symbol type = Member Value = 0
398
399 Symbol# 3: "_ptr"
400 Type = ptr to char
401 String index = 34
402 Storage class = Info Index = 15
403 Symbol type = Member Value = 32
404
405 Symbol# 4: "_base"
406 Type = ptr to char
407 String index = 39
408 Storage class = Info Index = 16
409 Symbol type = Member Value = 64
410
411 Symbol# 5: "_bufsiz"
412 Type = int
413 String index = 45
414 Storage class = Info Index = 4
415 Symbol type = Member Value = 96
416
417 Symbol# 6: "_flag"
418 Type = short
419 String index = 53
420 Storage class = Info Index = 3
421 Symbol type = Member Value = 128
422
423 Symbol# 7: "_file"
424 Type = char
425 String index = 59
426 Storage class = Info Index = 2
427 Symbol type = Member Value = 144
428
429 Symbol# 8: ""
430 First symbol = 1
431 String index = 0
432 Storage class = Info Index = 1
433 Symbol type = End Value = 0
434
435 Symbol# 9: "/usr/include/stdio.h"
436 First symbol = 0
437 String index = 1
438 Storage class = Text Index = 0
439 Symbol type = End Value = 0
440
441 There are 25 auxiliary table entries, starting at 642.
442
443 * #14 -1, [4095/1048575], [63 1:1 f:f:f:f:f:f]
444 #15 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
445 #16 65544, [ 8/ 16], [ 2 0:0 1:0:0:0:0:0]
446 * #17 196656, [ 48/ 48], [12 0:0 3:0:0:0:0:0]
447 * #18 8191, [4095/ 1], [63 1:1 0:0:0:0:f:1]
448 * #19 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
449 * #20 20479, [4095/ 4], [63 1:1 0:0:0:0:f:4]
450 * #21 1, [ 1/ 0], [ 0 1:0 0:0:0:0:0:0]
451 * #22 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
452 * #23 2, [ 2/ 0], [ 0 0:1 0:0:0:0:0:0]
453 * #24 160, [ 160/ 0], [40 0:0 0:0:0:0:0:0]
454 * #25 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
455 * #26 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
456 * #27 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
457 * #28 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
458 * #29 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
459 * #30 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
460 * #31 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
461 * #32 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
462 * #33 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
463 * #34 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
464 * #35 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
465 * #36 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
466 * #37 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
467 * #38 0, [ 0/ 0], [ 0 0:0 0:0:0:0:0:0]
468
469 There are 0 procedure descriptor entries, starting at 1.
470
471 There are 20 external symbols, starting at 1152
472
473 Symbol# 0: "_iob"
474 Type = array [3 {160}] of struct _iobuf { ifd = 1, index = 1 }
475 String index = 0 Ifd = 1
476 Storage class = Nil Index = 17
477 Symbol type = Global Value = 60
478
479 Symbol# 1: "fopen"
480 String index = 5 Ifd = 1
481 Storage class = Nil Index = 1048575
482 Symbol type = Proc Value = 0
483
484 Symbol# 2: "fdopen"
485 String index = 11 Ifd = 1
486 Storage class = Nil Index = 1048575
487 Symbol type = Proc Value = 0
488
489 Symbol# 3: "freopen"
490 String index = 18 Ifd = 1
491 Storage class = Nil Index = 1048575
492 Symbol type = Proc Value = 0
493
494 Symbol# 4: "popen"
495 String index = 26 Ifd = 1
496 Storage class = Nil Index = 1048575
497 Symbol type = Proc Value = 0
498
499 Symbol# 5: "tmpfile"
500 String index = 32 Ifd = 1
501 Storage class = Nil Index = 1048575
502 Symbol type = Proc Value = 0
503
504 Symbol# 6: "ftell"
505 String index = 40 Ifd = 1
506 Storage class = Nil Index = 1048575
507 Symbol type = Proc Value = 0
508
509 Symbol# 7: "rewind"
510 String index = 46 Ifd = 1
511 Storage class = Nil Index = 1048575
512 Symbol type = Proc Value = 0
513
514 Symbol# 8: "setbuf"
515 String index = 53 Ifd = 1
516 Storage class = Nil Index = 1048575
517 Symbol type = Proc Value = 0
518
519 Symbol# 9: "setbuffer"
520 String index = 60 Ifd = 1
521 Storage class = Nil Index = 1048575
522 Symbol type = Proc Value = 0
523
524 Symbol# 10: "setlinebuf"
525 String index = 70 Ifd = 1
526 Storage class = Nil Index = 1048575
527 Symbol type = Proc Value = 0
528
529 Symbol# 11: "fgets"
530 String index = 81 Ifd = 1
531 Storage class = Nil Index = 1048575
532 Symbol type = Proc Value = 0
533
534 Symbol# 12: "gets"
535 String index = 87 Ifd = 1
536 Storage class = Nil Index = 1048575
537 Symbol type = Proc Value = 0
538
539 Symbol# 13: "ctermid"
540 String index = 92 Ifd = 1
541 Storage class = Nil Index = 1048575
542 Symbol type = Proc Value = 0
543
544 Symbol# 14: "cuserid"
545 String index = 100 Ifd = 1
546 Storage class = Nil Index = 1048575
547 Symbol type = Proc Value = 0
548
549 Symbol# 15: "tempnam"
550 String index = 108 Ifd = 1
551 Storage class = Nil Index = 1048575
552 Symbol type = Proc Value = 0
553
554 Symbol# 16: "tmpnam"
555 String index = 116 Ifd = 1
556 Storage class = Nil Index = 1048575
557 Symbol type = Proc Value = 0
558
559 Symbol# 17: "sprintf"
560 String index = 123 Ifd = 1
561 Storage class = Nil Index = 1048575
562 Symbol type = Proc Value = 0
563
564 Symbol# 18: "main"
565 Type = int
566 String index = 131 Ifd = 0
567 Storage class = Text Index = 1
568 Symbol type = Proc Value = 0
569
570 Symbol# 19: "printf"
571 String index = 136 Ifd = 0
572 Storage class = Undefined Index = 1048575
573 Symbol type = Proc Value = 0
574
575 The following auxiliary table entries were unused:
576
577 #0 0 0x00000000 void
578 #2 8 0x00000008 char
579 #3 16 0x00000010 short
580 #4 24 0x00000018 int
581 #5 32 0x00000020 long
582 #6 40 0x00000028 float
583 #7 44 0x0000002c double
584 #8 12 0x0000000c unsigned char
585 #9 20 0x00000014 unsigned short
586 #10 28 0x0000001c unsigned int
587 #11 36 0x00000024 unsigned long
588 #14 0 0x00000000 void
589 #15 24 0x00000018 int
590 #19 32 0x00000020 long
591 #20 40 0x00000028 float
592 #21 44 0x0000002c double
593 #22 12 0x0000000c unsigned char
594 #23 20 0x00000014 unsigned short
595 #24 28 0x0000001c unsigned int
596 #25 36 0x00000024 unsigned long
597 #26 48 0x00000030 struct no name { ifd = -1, index = 1048575 }
598
599 */
600 \f
601
602 #include "config.h"
603 #include "system.h"
604
605 #ifndef __SABER__
606 #define saber_stop()
607 #endif
608
609 #ifndef __LINE__
610 #define __LINE__ 0
611 #endif
612
613 #ifdef ANSI_PROTOTYPES
614 typedef void *PTR_T;
615 typedef const void *CPTR_T;
616 #define __proto(x) x
617 #ifndef VPROTO
618 #define PVPROTO(ARGS) ARGS
619 #define VPROTO(ARGS) ARGS
620 #define VA_START(va_list,var) va_start(va_list,var)
621 #endif
622 #else
623
624 #if defined(_STDIO_H_) || defined(__STDIO_H__) /* Ultrix 4.0, SGI */
625 typedef void *PTR_T;
626 typedef void *CPTR_T;
627
628 #else
629 typedef char *PTR_T; /* Ultrix 3.1 */
630 typedef char *CPTR_T;
631 #endif
632
633 #define __proto(x) ()
634 #define const
635 #ifndef VPROTO
636 #define PVPROTO(ARGS) ()
637 #define VPROTO(ARGS) (va_alist) va_dcl
638 #define VA_START(va_list,var) va_start(va_list)
639 #endif
640 #endif
641
642 /* Do to size_t being defined in sys/types.h and different
643 in stddef.h, we have to do this by hand..... Note, these
644 types are correct for MIPS based systems, and may not be
645 correct for other systems. Ultrix 4.0 and Silicon Graphics
646 have this fixed, but since the following is correct, and
647 the fact that including stddef.h gets you GCC's version
648 instead of the standard one it's not worth it to fix it. */
649
650 #if defined(__OSF1__) || defined(__OSF__) || defined(__osf__)
651 #define Size_t long unsigned int
652 #else
653 #define Size_t unsigned int
654 #endif
655 #define Ptrdiff_t long
656
657 /* The following might be called from obstack or malloc,
658 so they can't be static. */
659
660 extern void pfatal_with_name
661 __proto((char *));
662 extern void fancy_abort __proto((void));
663 void botch __proto((const char *));
664 extern PTR_T xmalloc __proto((Size_t));
665 extern PTR_T xcalloc __proto((Size_t, Size_t));
666 extern PTR_T xrealloc __proto((PTR_T, Size_t));
667 extern void xfree __proto((PTR_T));
668
669 #ifdef HAVE_VPRINTF
670 extern void fatal PVPROTO((const char *format, ...));
671 extern void error PVPROTO((const char *format, ...));
672 #else
673 /* We must not provide any prototype here, even if ANSI C. */
674 extern void fatal __proto(());
675 extern void error __proto(());
676 #endif
677
678 \f
679 #ifndef MIPS_DEBUGGING_INFO
680
681 static int line_number;
682 static int cur_line_start;
683 static int debug;
684 static int had_errors;
685 static char *progname;
686 static char *input_name;
687
688 int
689 main ()
690 {
691 fprintf (stderr, "Mips-tfile should only be run on a MIPS computer!\n");
692 exit (1);
693 }
694
695 #else /* MIPS_DEBUGGING defined */
696 \f
697 /* The local and global symbols have a field index, so undo any defines
698 of index -> strchr and rindex -> strrchr. */
699
700 #undef rindex
701 #undef index
702
703 #include <sys/types.h>
704 #include <string.h>
705 #include <ctype.h>
706 #include <fcntl.h>
707 #include <errno.h>
708 #include <signal.h>
709 #include <sys/stat.h>
710
711 #ifndef CROSS_COMPILE
712 #include <a.out.h>
713 #else
714 #include "mips/a.out.h"
715 #endif /* CROSS_COMPILE */
716
717 #if defined (USG) || defined (NO_STAB_H)
718 #include "gstab.h" /* If doing DBX on sysV, use our own stab.h. */
719 #else
720 #include <stab.h> /* On BSD, use the system's stab.h. */
721 #endif /* not USG */
722
723 #ifdef __GNU_STAB__
724 #define STAB_CODE_TYPE enum __stab_debug_code
725 #else
726 #define STAB_CODE_TYPE int
727 #endif
728
729 #ifdef _OSF_SOURCE
730 #define HAS_STDLIB_H
731 #define HAS_UNISTD_H
732 #endif
733
734 #ifdef HAS_STDLIB_H
735 #include <stdlib.h>
736 #endif
737
738 #ifdef HAS_UNISTD_H
739 #include <unistd.h>
740 #endif
741
742 #ifndef errno
743 extern int errno; /* MIPS errno.h doesn't declare this */
744 #endif
745
746 #ifndef MALLOC_CHECK
747 #ifdef __SABER__
748 #define MALLOC_CHECK
749 #endif
750 #endif
751
752 #define IS_ASM_IDENT(ch) \
753 (isalnum (ch) || (ch) == '_' || (ch) == '.' || (ch) == '$')
754
755 \f
756 /* Redefinition of of storage classes as an enumeration for better
757 debugging. */
758
759 typedef enum sc {
760 sc_Nil = scNil, /* no storage class */
761 sc_Text = scText, /* text symbol */
762 sc_Data = scData, /* initialized data symbol */
763 sc_Bss = scBss, /* un-initialized data symbol */
764 sc_Register = scRegister, /* value of symbol is register number */
765 sc_Abs = scAbs, /* value of symbol is absolute */
766 sc_Undefined = scUndefined, /* who knows? */
767 sc_CdbLocal = scCdbLocal, /* variable's value is IN se->va.?? */
768 sc_Bits = scBits, /* this is a bit field */
769 sc_CdbSystem = scCdbSystem, /* value is IN CDB's address space */
770 sc_RegImage = scRegImage, /* register value saved on stack */
771 sc_Info = scInfo, /* symbol contains debugger information */
772 sc_UserStruct = scUserStruct, /* addr in struct user for current process */
773 sc_SData = scSData, /* load time only small data */
774 sc_SBss = scSBss, /* load time only small common */
775 sc_RData = scRData, /* load time only read only data */
776 sc_Var = scVar, /* Var parameter (fortran,pascal) */
777 sc_Common = scCommon, /* common variable */
778 sc_SCommon = scSCommon, /* small common */
779 sc_VarRegister = scVarRegister, /* Var parameter in a register */
780 sc_Variant = scVariant, /* Variant record */
781 sc_SUndefined = scSUndefined, /* small undefined(external) data */
782 sc_Init = scInit, /* .init section symbol */
783 sc_Max = scMax /* Max storage class+1 */
784 } sc_t;
785
786 /* Redefinition of symbol type. */
787
788 typedef enum st {
789 st_Nil = stNil, /* Nuthin' special */
790 st_Global = stGlobal, /* external symbol */
791 st_Static = stStatic, /* static */
792 st_Param = stParam, /* procedure argument */
793 st_Local = stLocal, /* local variable */
794 st_Label = stLabel, /* label */
795 st_Proc = stProc, /* " " Procedure */
796 st_Block = stBlock, /* beginning of block */
797 st_End = stEnd, /* end (of anything) */
798 st_Member = stMember, /* member (of anything - struct/union/enum */
799 st_Typedef = stTypedef, /* type definition */
800 st_File = stFile, /* file name */
801 st_RegReloc = stRegReloc, /* register relocation */
802 st_Forward = stForward, /* forwarding address */
803 st_StaticProc = stStaticProc, /* load time only static procs */
804 st_Constant = stConstant, /* const */
805 st_Str = stStr, /* string */
806 st_Number = stNumber, /* pure number (ie. 4 NOR 2+2) */
807 st_Expr = stExpr, /* 2+2 vs. 4 */
808 st_Type = stType, /* post-coercion SER */
809 st_Max = stMax /* max type+1 */
810 } st_t;
811
812 /* Redefinition of type qualifiers. */
813
814 typedef enum tq {
815 tq_Nil = tqNil, /* bt is what you see */
816 tq_Ptr = tqPtr, /* pointer */
817 tq_Proc = tqProc, /* procedure */
818 tq_Array = tqArray, /* duh */
819 tq_Far = tqFar, /* longer addressing - 8086/8 land */
820 tq_Vol = tqVol, /* volatile */
821 tq_Max = tqMax /* Max type qualifier+1 */
822 } tq_t;
823
824 /* Redefinition of basic types. */
825
826 typedef enum bt {
827 bt_Nil = btNil, /* undefined */
828 bt_Adr = btAdr, /* address - integer same size as pointer */
829 bt_Char = btChar, /* character */
830 bt_UChar = btUChar, /* unsigned character */
831 bt_Short = btShort, /* short */
832 bt_UShort = btUShort, /* unsigned short */
833 bt_Int = btInt, /* int */
834 bt_UInt = btUInt, /* unsigned int */
835 bt_Long = btLong, /* long */
836 bt_ULong = btULong, /* unsigned long */
837 bt_Float = btFloat, /* float (real) */
838 bt_Double = btDouble, /* Double (real) */
839 bt_Struct = btStruct, /* Structure (Record) */
840 bt_Union = btUnion, /* Union (variant) */
841 bt_Enum = btEnum, /* Enumerated */
842 bt_Typedef = btTypedef, /* defined via a typedef, isymRef points */
843 bt_Range = btRange, /* subrange of int */
844 bt_Set = btSet, /* pascal sets */
845 bt_Complex = btComplex, /* fortran complex */
846 bt_DComplex = btDComplex, /* fortran double complex */
847 bt_Indirect = btIndirect, /* forward or unnamed typedef */
848 bt_FixedDec = btFixedDec, /* Fixed Decimal */
849 bt_FloatDec = btFloatDec, /* Float Decimal */
850 bt_String = btString, /* Varying Length Character String */
851 bt_Bit = btBit, /* Aligned Bit String */
852 bt_Picture = btPicture, /* Picture */
853
854 #ifdef btVoid
855 bt_Void = btVoid, /* Void */
856 #else
857 #define bt_Void bt_Nil
858 #endif
859
860 bt_Max = btMax /* Max basic type+1 */
861 } bt_t;
862
863 \f
864
865 /* Basic COFF storage classes. */
866 enum coff_storage {
867 C_EFCN = -1,
868 C_NULL = 0,
869 C_AUTO = 1,
870 C_EXT = 2,
871 C_STAT = 3,
872 C_REG = 4,
873 C_EXTDEF = 5,
874 C_LABEL = 6,
875 C_ULABEL = 7,
876 C_MOS = 8,
877 C_ARG = 9,
878 C_STRTAG = 10,
879 C_MOU = 11,
880 C_UNTAG = 12,
881 C_TPDEF = 13,
882 C_USTATIC = 14,
883 C_ENTAG = 15,
884 C_MOE = 16,
885 C_REGPARM = 17,
886 C_FIELD = 18,
887 C_BLOCK = 100,
888 C_FCN = 101,
889 C_EOS = 102,
890 C_FILE = 103,
891 C_LINE = 104,
892 C_ALIAS = 105,
893 C_HIDDEN = 106,
894 C_MAX = 107
895 } coff_storage_t;
896
897 /* Regular COFF fundamental type. */
898 typedef enum coff_type {
899 T_NULL = 0,
900 T_ARG = 1,
901 T_CHAR = 2,
902 T_SHORT = 3,
903 T_INT = 4,
904 T_LONG = 5,
905 T_FLOAT = 6,
906 T_DOUBLE = 7,
907 T_STRUCT = 8,
908 T_UNION = 9,
909 T_ENUM = 10,
910 T_MOE = 11,
911 T_UCHAR = 12,
912 T_USHORT = 13,
913 T_UINT = 14,
914 T_ULONG = 15,
915 T_MAX = 16
916 } coff_type_t;
917
918 /* Regular COFF derived types. */
919 typedef enum coff_dt {
920 DT_NON = 0,
921 DT_PTR = 1,
922 DT_FCN = 2,
923 DT_ARY = 3,
924 DT_MAX = 4
925 } coff_dt_t;
926
927 #define N_BTMASK 017 /* bitmask to isolate basic type */
928 #define N_TMASK 003 /* bitmask to isolate derived type */
929 #define N_BT_SHIFT 4 /* # bits to shift past basic type */
930 #define N_TQ_SHIFT 2 /* # bits to shift derived types */
931 #define N_TQ 6 /* # of type qualifiers */
932
933 /* States for whether to hash type or not. */
934 typedef enum hash_state {
935 hash_no = 0, /* don't hash type */
936 hash_yes = 1, /* ok to hash type, or use previous hash */
937 hash_record = 2 /* ok to record hash, but don't use prev. */
938 } hash_state_t;
939
940
941 /* Types of different sized allocation requests. */
942 enum alloc_type {
943 alloc_type_none, /* dummy value */
944 alloc_type_scope, /* nested scopes linked list */
945 alloc_type_vlinks, /* glue linking pages in varray */
946 alloc_type_shash, /* string hash element */
947 alloc_type_thash, /* type hash element */
948 alloc_type_tag, /* struct/union/tag element */
949 alloc_type_forward, /* element to hold unknown tag */
950 alloc_type_thead, /* head of type hash list */
951 alloc_type_varray, /* general varray allocation */
952 alloc_type_last /* last+1 element for array bounds */
953 };
954
955 \f
956 #define WORD_ALIGN(x) (((x) + (sizeof (long) - 1)) & ~ (sizeof (long) - 1))
957 #define DWORD_ALIGN(x) (((x) + 7) & ~7)
958
959
960 /* Structures to provide n-number of virtual arrays, each of which can
961 grow linearly, and which are written in the object file as sequential
962 pages. On systems with a BSD malloc that define USE_MALLOC, the
963 MAX_CLUSTER_PAGES should be 1 less than a power of two, since malloc
964 adds its overhead, and rounds up to the next power of 2. Pages are
965 linked together via a linked list.
966
967 If PAGE_SIZE is > 4096, the string length in the shash_t structure
968 can't be represented (assuming there are strings > 4096 bytes). */
969
970 #ifndef PAGE_SIZE
971 #define PAGE_SIZE 4096 /* size of varray pages */
972 #endif
973
974 #define PAGE_USIZE ((Size_t)PAGE_SIZE)
975
976
977 #ifndef MAX_CLUSTER_PAGES /* # pages to get from system */
978 #ifndef USE_MALLOC /* in one memory request */
979 #define MAX_CLUSTER_PAGES 64
980 #else
981 #define MAX_CLUSTER_PAGES 63
982 #endif
983 #endif
984
985
986 /* Linked list connecting separate page allocations. */
987 typedef struct vlinks {
988 struct vlinks *prev; /* previous set of pages */
989 struct vlinks *next; /* next set of pages */
990 union page *datum; /* start of page */
991 unsigned long start_index; /* starting index # of page */
992 } vlinks_t;
993
994
995 /* Virtual array header. */
996 typedef struct varray {
997 vlinks_t *first; /* first page link */
998 vlinks_t *last; /* last page link */
999 unsigned long num_allocated; /* # objects allocated */
1000 unsigned short object_size; /* size in bytes of each object */
1001 unsigned short objects_per_page; /* # objects that can fit on a page */
1002 unsigned short objects_last_page; /* # objects allocated on last page */
1003 } varray_t;
1004
1005 #ifndef MALLOC_CHECK
1006 #define OBJECTS_PER_PAGE(type) (PAGE_SIZE / sizeof (type))
1007 #else
1008 #define OBJECTS_PER_PAGE(type) ((sizeof (type) > 1) ? 1 : PAGE_SIZE)
1009 #endif
1010
1011 #define INIT_VARRAY(type) { /* macro to initialize a varray */ \
1012 (vlinks_t *) 0, /* first */ \
1013 (vlinks_t *) 0, /* last */ \
1014 0, /* num_allocated */ \
1015 sizeof (type), /* object_size */ \
1016 OBJECTS_PER_PAGE (type), /* objects_per_page */ \
1017 OBJECTS_PER_PAGE (type), /* objects_last_page */ \
1018 }
1019
1020 /* Master type for indexes within the symbol table. */
1021 typedef unsigned long symint_t;
1022
1023
1024 /* Linked list support for nested scopes (file, block, structure, etc.). */
1025 typedef struct scope {
1026 struct scope *prev; /* previous scope level */
1027 struct scope *free; /* free list pointer */
1028 SYMR *lsym; /* pointer to local symbol node */
1029 symint_t lnumber; /* lsym index */
1030 st_t type; /* type of the node */
1031 } scope_t;
1032
1033
1034 /* Forward reference list for tags referenced, but not yet defined. */
1035 typedef struct forward {
1036 struct forward *next; /* next forward reference */
1037 struct forward *free; /* free list pointer */
1038 AUXU *ifd_ptr; /* pointer to store file index */
1039 AUXU *index_ptr; /* pointer to store symbol index */
1040 AUXU *type_ptr; /* pointer to munge type info */
1041 } forward_t;
1042
1043
1044 /* Linked list support for tags. The first tag in the list is always
1045 the current tag for that block. */
1046 typedef struct tag {
1047 struct tag *free; /* free list pointer */
1048 struct shash *hash_ptr; /* pointer to the hash table head */
1049 struct tag *same_name; /* tag with same name in outer scope */
1050 struct tag *same_block; /* next tag defined in the same block. */
1051 struct forward *forward_ref; /* list of forward references */
1052 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
1053 symint_t ifd; /* file # tag defined in */
1054 symint_t indx; /* index within file's local symbols */
1055 } tag_t;
1056
1057
1058 /* Head of a block's linked list of tags. */
1059 typedef struct thead {
1060 struct thead *prev; /* previous block */
1061 struct thead *free; /* free list pointer */
1062 struct tag *first_tag; /* first tag in block defined */
1063 } thead_t;
1064
1065
1066 /* Union containing pointers to each the small structures which are freed up. */
1067 typedef union small_free {
1068 scope_t *f_scope; /* scope structure */
1069 thead_t *f_thead; /* tag head structure */
1070 tag_t *f_tag; /* tag element structure */
1071 forward_t *f_forward; /* forward tag reference */
1072 } small_free_t;
1073
1074
1075 /* String hash table support. The size of the hash table must fit
1076 within a page. */
1077
1078 #ifndef SHASH_SIZE
1079 #define SHASH_SIZE 1009
1080 #endif
1081
1082 #define HASH_LEN_MAX ((1 << 12) - 1) /* Max length we can store */
1083
1084 typedef struct shash {
1085 struct shash *next; /* next hash value */
1086 char *string; /* string we are hashing */
1087 symint_t len; /* string length */
1088 symint_t indx; /* index within string table */
1089 EXTR *esym_ptr; /* global symbol pointer */
1090 SYMR *sym_ptr; /* local symbol pointer */
1091 SYMR *end_ptr; /* symbol pointer to end block */
1092 tag_t *tag_ptr; /* tag pointer */
1093 PDR *proc_ptr; /* procedure descriptor pointer */
1094 } shash_t;
1095
1096
1097 /* Type hash table support. The size of the hash table must fit
1098 within a page with the other extended file descriptor information.
1099 Because unique types which are hashed are fewer in number than
1100 strings, we use a smaller hash value. */
1101
1102 #ifndef THASH_SIZE
1103 #define THASH_SIZE 113
1104 #endif
1105
1106 typedef struct thash {
1107 struct thash *next; /* next hash value */
1108 AUXU type; /* type we are hashing */
1109 symint_t indx; /* index within string table */
1110 } thash_t;
1111
1112
1113 /* Extended file descriptor that contains all of the support necessary
1114 to add things to each file separately. */
1115 typedef struct efdr {
1116 FDR fdr; /* File header to be written out */
1117 FDR *orig_fdr; /* original file header */
1118 char *name; /* filename */
1119 int name_len; /* length of the filename */
1120 symint_t void_type; /* aux. pointer to 'void' type */
1121 symint_t int_type; /* aux. pointer to 'int' type */
1122 scope_t *cur_scope; /* current nested scopes */
1123 symint_t file_index; /* current file number */
1124 int nested_scopes; /* # nested scopes */
1125 varray_t strings; /* local strings */
1126 varray_t symbols; /* local symbols */
1127 varray_t procs; /* procedures */
1128 varray_t aux_syms; /* auxiliary symbols */
1129 struct efdr *next_file; /* next file descriptor */
1130 /* string/type hash tables */
1131 shash_t **shash_head; /* string hash table */
1132 thash_t *thash_head[THASH_SIZE];
1133 } efdr_t;
1134
1135 /* Pre-initialized extended file structure. */
1136 static efdr_t init_file =
1137 {
1138 { /* FDR structure */
1139 0, /* adr: memory address of beginning of file */
1140 0, /* rss: file name (of source, if known) */
1141 0, /* issBase: file's string space */
1142 0, /* cbSs: number of bytes in the ss */
1143 0, /* isymBase: beginning of symbols */
1144 0, /* csym: count file's of symbols */
1145 0, /* ilineBase: file's line symbols */
1146 0, /* cline: count of file's line symbols */
1147 0, /* ioptBase: file's optimization entries */
1148 0, /* copt: count of file's optimization entries */
1149 0, /* ipdFirst: start of procedures for this file */
1150 0, /* cpd: count of procedures for this file */
1151 0, /* iauxBase: file's auxiliary entries */
1152 0, /* caux: count of file's auxiliary entries */
1153 0, /* rfdBase: index into the file indirect table */
1154 0, /* crfd: count file indirect entries */
1155 langC, /* lang: language for this file */
1156 1, /* fMerge: whether this file can be merged */
1157 0, /* fReadin: true if read in (not just created) */
1158 #ifdef HOST_WORDS_BIG_ENDIAN
1159 1, /* fBigendian: if 1, compiled on big endian machine */
1160 #else
1161 0, /* fBigendian: if 1, compiled on big endian machine */
1162 #endif
1163 GLEVEL_2, /* glevel: level this file was compiled with */
1164 0, /* reserved: reserved for future use */
1165 0, /* cbLineOffset: byte offset from header for this file ln's */
1166 0, /* cbLine: size of lines for this file */
1167 },
1168
1169 (FDR *) 0, /* orig_fdr: original file header pointer */
1170 (char *) 0, /* name: pointer to filename */
1171 0, /* name_len: length of filename */
1172 0, /* void_type: ptr to aux node for void type */
1173 0, /* int_type: ptr to aux node for int type */
1174 (scope_t *) 0, /* cur_scope: current scope being processed */
1175 0, /* file_index: current file # */
1176 0, /* nested_scopes: # nested scopes */
1177 INIT_VARRAY (char), /* strings: local string varray */
1178 INIT_VARRAY (SYMR), /* symbols: local symbols varray */
1179 INIT_VARRAY (PDR), /* procs: procedure varray */
1180 INIT_VARRAY (AUXU), /* aux_syms: auxiliary symbols varray */
1181
1182 (struct efdr *) 0, /* next_file: next file structure */
1183
1184 (shash_t **) 0, /* shash_head: string hash table */
1185 { 0 }, /* thash_head: type hash table */
1186 };
1187
1188
1189 static efdr_t *first_file; /* first file descriptor */
1190 static efdr_t **last_file_ptr = &first_file; /* file descriptor tail */
1191
1192
1193 /* Union of various things that are held in pages. */
1194 typedef union page {
1195 char byte [ PAGE_SIZE ];
1196 unsigned char ubyte [ PAGE_SIZE ];
1197 efdr_t file [ PAGE_SIZE / sizeof (efdr_t) ];
1198 FDR ofile [ PAGE_SIZE / sizeof (FDR) ];
1199 PDR proc [ PAGE_SIZE / sizeof (PDR) ];
1200 SYMR sym [ PAGE_SIZE / sizeof (SYMR) ];
1201 EXTR esym [ PAGE_SIZE / sizeof (EXTR) ];
1202 AUXU aux [ PAGE_SIZE / sizeof (AUXU) ];
1203 DNR dense [ PAGE_SIZE / sizeof (DNR) ];
1204 scope_t scope [ PAGE_SIZE / sizeof (scope_t) ];
1205 vlinks_t vlinks [ PAGE_SIZE / sizeof (vlinks_t) ];
1206 shash_t shash [ PAGE_SIZE / sizeof (shash_t) ];
1207 thash_t thash [ PAGE_SIZE / sizeof (thash_t) ];
1208 tag_t tag [ PAGE_SIZE / sizeof (tag_t) ];
1209 forward_t forward [ PAGE_SIZE / sizeof (forward_t) ];
1210 thead_t thead [ PAGE_SIZE / sizeof (thead_t) ];
1211 } page_t;
1212
1213
1214 /* Structure holding allocation information for small sized structures. */
1215 typedef struct alloc_info {
1216 char *alloc_name; /* name of this allocation type (must be first) */
1217 page_t *cur_page; /* current page being allocated from */
1218 small_free_t free_list; /* current free list if any */
1219 int unallocated; /* number of elements unallocated on page */
1220 int total_alloc; /* total number of allocations */
1221 int total_free; /* total number of frees */
1222 int total_pages; /* total number of pages allocated */
1223 } alloc_info_t;
1224
1225 /* Type information collected together. */
1226 typedef struct type_info {
1227 bt_t basic_type; /* basic type */
1228 coff_type_t orig_type; /* original COFF-based type */
1229 int num_tq; /* # type qualifiers */
1230 int num_dims; /* # dimensions */
1231 int num_sizes; /* # sizes */
1232 int extra_sizes; /* # extra sizes not tied with dims */
1233 tag_t * tag_ptr; /* tag pointer */
1234 int bitfield; /* symbol is a bitfield */
1235 int unknown_tag; /* this is an unknown tag */
1236 tq_t type_qualifiers[N_TQ]; /* type qualifiers (ptr, func, array)*/
1237 symint_t dimensions [N_TQ]; /* dimensions for each array */
1238 symint_t sizes [N_TQ+2]; /* sizes of each array slice + size of
1239 struct/union/enum + bitfield size */
1240 } type_info_t;
1241
1242 /* Pre-initialized type_info struct. */
1243 static type_info_t type_info_init = {
1244 bt_Nil, /* basic type */
1245 T_NULL, /* original COFF-based type */
1246 0, /* # type qualifiers */
1247 0, /* # dimensions */
1248 0, /* # sizes */
1249 0, /* sizes not tied with dims */
1250 NULL, /* ptr to tag */
1251 0, /* bitfield */
1252 0, /* unknown tag */
1253 { /* type qualifiers */
1254 tq_Nil,
1255 tq_Nil,
1256 tq_Nil,
1257 tq_Nil,
1258 tq_Nil,
1259 tq_Nil,
1260 },
1261 { /* dimensions */
1262 0,
1263 0,
1264 0,
1265 0,
1266 0,
1267 0
1268 },
1269 { /* sizes */
1270 0,
1271 0,
1272 0,
1273 0,
1274 0,
1275 0,
1276 0,
1277 0,
1278 },
1279 };
1280
1281
1282 /* Global virtual arrays & hash table for external strings as well as
1283 for the tags table and global tables for file descriptors, and
1284 dense numbers. */
1285
1286 static varray_t file_desc = INIT_VARRAY (efdr_t);
1287 static varray_t dense_num = INIT_VARRAY (DNR);
1288 static varray_t tag_strings = INIT_VARRAY (char);
1289 static varray_t ext_strings = INIT_VARRAY (char);
1290 static varray_t ext_symbols = INIT_VARRAY (EXTR);
1291
1292 static shash_t *orig_str_hash[SHASH_SIZE];
1293 static shash_t *ext_str_hash [SHASH_SIZE];
1294 static shash_t *tag_hash [SHASH_SIZE];
1295
1296 /* Static types for int and void. Also, remember the last function's
1297 type (which is set up when we encounter the declaration for the
1298 function, and used when the end block for the function is emitted. */
1299
1300 static type_info_t int_type_info;
1301 static type_info_t void_type_info;
1302 static type_info_t last_func_type_info;
1303 static EXTR *last_func_eptr;
1304
1305
1306 /* Convert COFF basic type to ECOFF basic type. The T_NULL type
1307 really should use bt_Void, but this causes the current ecoff GDB to
1308 issue unsupported type messages, and the Ultrix 4.00 dbx (aka MIPS
1309 2.0) doesn't understand it, even though the compiler generates it.
1310 Maybe this will be fixed in 2.10 or 2.20 of the MIPS compiler
1311 suite, but for now go with what works. */
1312
1313 static bt_t map_coff_types[ (int)T_MAX ] = {
1314 bt_Nil, /* T_NULL */
1315 bt_Nil, /* T_ARG */
1316 bt_Char, /* T_CHAR */
1317 bt_Short, /* T_SHORT */
1318 bt_Int, /* T_INT */
1319 bt_Long, /* T_LONG */
1320 bt_Float, /* T_FLOAT */
1321 bt_Double, /* T_DOUBLE */
1322 bt_Struct, /* T_STRUCT */
1323 bt_Union, /* T_UNION */
1324 bt_Enum, /* T_ENUM */
1325 bt_Enum, /* T_MOE */
1326 bt_UChar, /* T_UCHAR */
1327 bt_UShort, /* T_USHORT */
1328 bt_UInt, /* T_UINT */
1329 bt_ULong /* T_ULONG */
1330 };
1331
1332 /* Convert COFF storage class to ECOFF storage class. */
1333 static sc_t map_coff_storage[ (int)C_MAX ] = {
1334 sc_Nil, /* 0: C_NULL */
1335 sc_Abs, /* 1: C_AUTO auto var */
1336 sc_Undefined, /* 2: C_EXT external */
1337 sc_Data, /* 3: C_STAT static */
1338 sc_Register, /* 4: C_REG register */
1339 sc_Undefined, /* 5: C_EXTDEF ??? */
1340 sc_Text, /* 6: C_LABEL label */
1341 sc_Text, /* 7: C_ULABEL user label */
1342 sc_Info, /* 8: C_MOS member of struct */
1343 sc_Abs, /* 9: C_ARG argument */
1344 sc_Info, /* 10: C_STRTAG struct tag */
1345 sc_Info, /* 11: C_MOU member of union */
1346 sc_Info, /* 12: C_UNTAG union tag */
1347 sc_Info, /* 13: C_TPDEF typedef */
1348 sc_Data, /* 14: C_USTATIC ??? */
1349 sc_Info, /* 15: C_ENTAG enum tag */
1350 sc_Info, /* 16: C_MOE member of enum */
1351 sc_Register, /* 17: C_REGPARM register parameter */
1352 sc_Bits, /* 18; C_FIELD bitfield */
1353 sc_Nil, /* 19 */
1354 sc_Nil, /* 20 */
1355 sc_Nil, /* 21 */
1356 sc_Nil, /* 22 */
1357 sc_Nil, /* 23 */
1358 sc_Nil, /* 24 */
1359 sc_Nil, /* 25 */
1360 sc_Nil, /* 26 */
1361 sc_Nil, /* 27 */
1362 sc_Nil, /* 28 */
1363 sc_Nil, /* 29 */
1364 sc_Nil, /* 30 */
1365 sc_Nil, /* 31 */
1366 sc_Nil, /* 32 */
1367 sc_Nil, /* 33 */
1368 sc_Nil, /* 34 */
1369 sc_Nil, /* 35 */
1370 sc_Nil, /* 36 */
1371 sc_Nil, /* 37 */
1372 sc_Nil, /* 38 */
1373 sc_Nil, /* 39 */
1374 sc_Nil, /* 40 */
1375 sc_Nil, /* 41 */
1376 sc_Nil, /* 42 */
1377 sc_Nil, /* 43 */
1378 sc_Nil, /* 44 */
1379 sc_Nil, /* 45 */
1380 sc_Nil, /* 46 */
1381 sc_Nil, /* 47 */
1382 sc_Nil, /* 48 */
1383 sc_Nil, /* 49 */
1384 sc_Nil, /* 50 */
1385 sc_Nil, /* 51 */
1386 sc_Nil, /* 52 */
1387 sc_Nil, /* 53 */
1388 sc_Nil, /* 54 */
1389 sc_Nil, /* 55 */
1390 sc_Nil, /* 56 */
1391 sc_Nil, /* 57 */
1392 sc_Nil, /* 58 */
1393 sc_Nil, /* 59 */
1394 sc_Nil, /* 60 */
1395 sc_Nil, /* 61 */
1396 sc_Nil, /* 62 */
1397 sc_Nil, /* 63 */
1398 sc_Nil, /* 64 */
1399 sc_Nil, /* 65 */
1400 sc_Nil, /* 66 */
1401 sc_Nil, /* 67 */
1402 sc_Nil, /* 68 */
1403 sc_Nil, /* 69 */
1404 sc_Nil, /* 70 */
1405 sc_Nil, /* 71 */
1406 sc_Nil, /* 72 */
1407 sc_Nil, /* 73 */
1408 sc_Nil, /* 74 */
1409 sc_Nil, /* 75 */
1410 sc_Nil, /* 76 */
1411 sc_Nil, /* 77 */
1412 sc_Nil, /* 78 */
1413 sc_Nil, /* 79 */
1414 sc_Nil, /* 80 */
1415 sc_Nil, /* 81 */
1416 sc_Nil, /* 82 */
1417 sc_Nil, /* 83 */
1418 sc_Nil, /* 84 */
1419 sc_Nil, /* 85 */
1420 sc_Nil, /* 86 */
1421 sc_Nil, /* 87 */
1422 sc_Nil, /* 88 */
1423 sc_Nil, /* 89 */
1424 sc_Nil, /* 90 */
1425 sc_Nil, /* 91 */
1426 sc_Nil, /* 92 */
1427 sc_Nil, /* 93 */
1428 sc_Nil, /* 94 */
1429 sc_Nil, /* 95 */
1430 sc_Nil, /* 96 */
1431 sc_Nil, /* 97 */
1432 sc_Nil, /* 98 */
1433 sc_Nil, /* 99 */
1434 sc_Text, /* 100: C_BLOCK block start/end */
1435 sc_Text, /* 101: C_FCN function start/end */
1436 sc_Info, /* 102: C_EOS end of struct/union/enum */
1437 sc_Nil, /* 103: C_FILE file start */
1438 sc_Nil, /* 104: C_LINE line number */
1439 sc_Nil, /* 105: C_ALIAS combined type info */
1440 sc_Nil, /* 106: C_HIDDEN ??? */
1441 };
1442
1443 /* Convert COFF storage class to ECOFF symbol type. */
1444 static st_t map_coff_sym_type[ (int)C_MAX ] = {
1445 st_Nil, /* 0: C_NULL */
1446 st_Local, /* 1: C_AUTO auto var */
1447 st_Global, /* 2: C_EXT external */
1448 st_Static, /* 3: C_STAT static */
1449 st_Local, /* 4: C_REG register */
1450 st_Global, /* 5: C_EXTDEF ??? */
1451 st_Label, /* 6: C_LABEL label */
1452 st_Label, /* 7: C_ULABEL user label */
1453 st_Member, /* 8: C_MOS member of struct */
1454 st_Param, /* 9: C_ARG argument */
1455 st_Block, /* 10: C_STRTAG struct tag */
1456 st_Member, /* 11: C_MOU member of union */
1457 st_Block, /* 12: C_UNTAG union tag */
1458 st_Typedef, /* 13: C_TPDEF typedef */
1459 st_Static, /* 14: C_USTATIC ??? */
1460 st_Block, /* 15: C_ENTAG enum tag */
1461 st_Member, /* 16: C_MOE member of enum */
1462 st_Param, /* 17: C_REGPARM register parameter */
1463 st_Member, /* 18; C_FIELD bitfield */
1464 st_Nil, /* 19 */
1465 st_Nil, /* 20 */
1466 st_Nil, /* 21 */
1467 st_Nil, /* 22 */
1468 st_Nil, /* 23 */
1469 st_Nil, /* 24 */
1470 st_Nil, /* 25 */
1471 st_Nil, /* 26 */
1472 st_Nil, /* 27 */
1473 st_Nil, /* 28 */
1474 st_Nil, /* 29 */
1475 st_Nil, /* 30 */
1476 st_Nil, /* 31 */
1477 st_Nil, /* 32 */
1478 st_Nil, /* 33 */
1479 st_Nil, /* 34 */
1480 st_Nil, /* 35 */
1481 st_Nil, /* 36 */
1482 st_Nil, /* 37 */
1483 st_Nil, /* 38 */
1484 st_Nil, /* 39 */
1485 st_Nil, /* 40 */
1486 st_Nil, /* 41 */
1487 st_Nil, /* 42 */
1488 st_Nil, /* 43 */
1489 st_Nil, /* 44 */
1490 st_Nil, /* 45 */
1491 st_Nil, /* 46 */
1492 st_Nil, /* 47 */
1493 st_Nil, /* 48 */
1494 st_Nil, /* 49 */
1495 st_Nil, /* 50 */
1496 st_Nil, /* 51 */
1497 st_Nil, /* 52 */
1498 st_Nil, /* 53 */
1499 st_Nil, /* 54 */
1500 st_Nil, /* 55 */
1501 st_Nil, /* 56 */
1502 st_Nil, /* 57 */
1503 st_Nil, /* 58 */
1504 st_Nil, /* 59 */
1505 st_Nil, /* 60 */
1506 st_Nil, /* 61 */
1507 st_Nil, /* 62 */
1508 st_Nil, /* 63 */
1509 st_Nil, /* 64 */
1510 st_Nil, /* 65 */
1511 st_Nil, /* 66 */
1512 st_Nil, /* 67 */
1513 st_Nil, /* 68 */
1514 st_Nil, /* 69 */
1515 st_Nil, /* 70 */
1516 st_Nil, /* 71 */
1517 st_Nil, /* 72 */
1518 st_Nil, /* 73 */
1519 st_Nil, /* 74 */
1520 st_Nil, /* 75 */
1521 st_Nil, /* 76 */
1522 st_Nil, /* 77 */
1523 st_Nil, /* 78 */
1524 st_Nil, /* 79 */
1525 st_Nil, /* 80 */
1526 st_Nil, /* 81 */
1527 st_Nil, /* 82 */
1528 st_Nil, /* 83 */
1529 st_Nil, /* 84 */
1530 st_Nil, /* 85 */
1531 st_Nil, /* 86 */
1532 st_Nil, /* 87 */
1533 st_Nil, /* 88 */
1534 st_Nil, /* 89 */
1535 st_Nil, /* 90 */
1536 st_Nil, /* 91 */
1537 st_Nil, /* 92 */
1538 st_Nil, /* 93 */
1539 st_Nil, /* 94 */
1540 st_Nil, /* 95 */
1541 st_Nil, /* 96 */
1542 st_Nil, /* 97 */
1543 st_Nil, /* 98 */
1544 st_Nil, /* 99 */
1545 st_Block, /* 100: C_BLOCK block start/end */
1546 st_Proc, /* 101: C_FCN function start/end */
1547 st_End, /* 102: C_EOS end of struct/union/enum */
1548 st_File, /* 103: C_FILE file start */
1549 st_Nil, /* 104: C_LINE line number */
1550 st_Nil, /* 105: C_ALIAS combined type info */
1551 st_Nil, /* 106: C_HIDDEN ??? */
1552 };
1553
1554 /* Map COFF derived types to ECOFF type qualifiers. */
1555 static tq_t map_coff_derived_type[ (int)DT_MAX ] = {
1556 tq_Nil, /* 0: DT_NON no more qualifiers */
1557 tq_Ptr, /* 1: DT_PTR pointer */
1558 tq_Proc, /* 2: DT_FCN function */
1559 tq_Array, /* 3: DT_ARY array */
1560 };
1561
1562
1563 /* Keep track of different sized allocation requests. */
1564 static alloc_info_t alloc_counts[ (int)alloc_type_last ];
1565
1566 \f
1567 /* Pointers and such to the original symbol table that is read in. */
1568 static struct filehdr orig_file_header; /* global object file header */
1569
1570 static HDRR orig_sym_hdr; /* symbolic header on input */
1571 static char *orig_linenum; /* line numbers */
1572 static DNR *orig_dense; /* dense numbers */
1573 static PDR *orig_procs; /* procedures */
1574 static SYMR *orig_local_syms; /* local symbols */
1575 static OPTR *orig_opt_syms; /* optimization symbols */
1576 static AUXU *orig_aux_syms; /* auxiliary symbols */
1577 static char *orig_local_strs; /* local strings */
1578 static char *orig_ext_strs; /* external strings */
1579 static FDR *orig_files; /* file descriptors */
1580 static symint_t *orig_rfds; /* relative file desc's */
1581 static EXTR *orig_ext_syms; /* external symbols */
1582
1583 /* Macros to convert an index into a given object within the original
1584 symbol table. */
1585 #define CHECK(num,max,str) \
1586 (((unsigned long)num > (unsigned long)max) ? out_of_bounds (num, max, str, __LINE__) : 0)
1587
1588 #define ORIG_LINENUM(indx) (CHECK ((indx), orig_sym_hdr.cbLine, "line#"), (indx) + orig_linenum)
1589 #define ORIG_DENSE(indx) (CHECK ((indx), orig_sym_hdr.idnMax, "dense"), (indx) + orig_dense)
1590 #define ORIG_PROCS(indx) (CHECK ((indx), orig_sym_hdr.ipdMax, "procs"), (indx) + orig_procs)
1591 #define ORIG_FILES(indx) (CHECK ((indx), orig_sym_hdr.ifdMax, "funcs"), (indx) + orig_files)
1592 #define ORIG_LSYMS(indx) (CHECK ((indx), orig_sym_hdr.isymMax, "lsyms"), (indx) + orig_local_syms)
1593 #define ORIG_LSTRS(indx) (CHECK ((indx), orig_sym_hdr.issMax, "lstrs"), (indx) + orig_local_strs)
1594 #define ORIG_ESYMS(indx) (CHECK ((indx), orig_sym_hdr.iextMax, "esyms"), (indx) + orig_ext_syms)
1595 #define ORIG_ESTRS(indx) (CHECK ((indx), orig_sym_hdr.issExtMax, "estrs"), (indx) + orig_ext_strs)
1596 #define ORIG_OPT(indx) (CHECK ((indx), orig_sym_hdr.ioptMax, "opt"), (indx) + orig_opt_syms)
1597 #define ORIG_AUX(indx) (CHECK ((indx), orig_sym_hdr.iauxMax, "aux"), (indx) + orig_aux_syms)
1598 #define ORIG_RFDS(indx) (CHECK ((indx), orig_sym_hdr.crfd, "rfds"), (indx) + orig_rfds)
1599
1600 /* Various other statics. */
1601 static HDRR symbolic_header; /* symbolic header */
1602 static efdr_t *cur_file_ptr = (efdr_t *) 0; /* current file desc. header */
1603 static PDR *cur_proc_ptr = (PDR *) 0; /* current procedure header */
1604 static SYMR *cur_oproc_begin = (SYMR *) 0; /* original proc. sym begin info */
1605 static SYMR *cur_oproc_end = (SYMR *) 0; /* original proc. sym end info */
1606 static PDR *cur_oproc_ptr = (PDR *) 0; /* current original procedure*/
1607 static thead_t *cur_tag_head = (thead_t *) 0;/* current tag head */
1608 static long file_offset = 0; /* current file offset */
1609 static long max_file_offset = 0; /* maximum file offset */
1610 static FILE *object_stream = (FILE *) 0; /* file desc. to output .o */
1611 static FILE *obj_in_stream = (FILE *) 0; /* file desc. to input .o */
1612 static char *progname = (char *) 0; /* program name for errors */
1613 static char *input_name = "stdin"; /* name of input file */
1614 static char *object_name = (char *) 0; /* tmp. name of object file */
1615 static char *obj_in_name = (char *) 0; /* name of input object file */
1616 static char *cur_line_start = (char *) 0; /* current line read in */
1617 static char *cur_line_ptr = (char *) 0; /* ptr within current line */
1618 static unsigned cur_line_nbytes = 0; /* # bytes for current line */
1619 static unsigned cur_line_alloc = 0; /* # bytes total in buffer */
1620 static long line_number = 0; /* current input line number */
1621 static int debug = 0; /* trace functions */
1622 static int version = 0; /* print version # */
1623 static int had_errors = 0; /* != 0 if errors were found */
1624 static int rename_output = 0; /* != 0 if rename output file*/
1625 static int delete_input = 0; /* != 0 if delete input after done */
1626 static int stabs_seen = 0; /* != 0 if stabs have been seen */
1627
1628
1629 /* Pseudo symbol to use when putting stabs into the symbol table. */
1630 #ifndef STABS_SYMBOL
1631 #define STABS_SYMBOL "@stabs"
1632 #endif
1633
1634 static char stabs_symbol[] = STABS_SYMBOL;
1635
1636 \f
1637 /* Forward reference for functions. See the definition for more details. */
1638
1639 #ifndef STATIC
1640 #define STATIC static
1641 #endif
1642
1643 STATIC int out_of_bounds __proto((symint_t, symint_t, const char *, int));
1644
1645 STATIC shash_t *hash_string __proto((const char *,
1646 Ptrdiff_t,
1647 shash_t **,
1648 symint_t *));
1649
1650 STATIC symint_t add_string __proto((varray_t *,
1651 shash_t **,
1652 const char *,
1653 const char *,
1654 shash_t **));
1655
1656 STATIC symint_t add_local_symbol
1657 __proto((const char *,
1658 const char *,
1659 st_t,
1660 sc_t,
1661 symint_t,
1662 symint_t));
1663
1664 STATIC symint_t add_ext_symbol __proto((const char *,
1665 const char *,
1666 st_t,
1667 sc_t,
1668 long,
1669 symint_t,
1670 int));
1671
1672 STATIC symint_t add_aux_sym_symint
1673 __proto((symint_t));
1674
1675 STATIC symint_t add_aux_sym_rndx
1676 __proto((int, symint_t));
1677
1678 STATIC symint_t add_aux_sym_tir __proto((type_info_t *,
1679 hash_state_t,
1680 thash_t **));
1681
1682 STATIC tag_t * get_tag __proto((const char *,
1683 const char *,
1684 symint_t,
1685 bt_t));
1686
1687 STATIC void add_unknown_tag __proto((tag_t *));
1688
1689 STATIC void add_procedure __proto((const char *,
1690 const char *));
1691
1692 STATIC void add_file __proto((const char *,
1693 const char *));
1694
1695 STATIC void add_bytes __proto((varray_t *,
1696 char *,
1697 Size_t));
1698
1699 STATIC void add_varray_page __proto((varray_t *));
1700
1701 STATIC void update_headers __proto((void));
1702
1703 STATIC void write_varray __proto((varray_t *, off_t, const char *));
1704 STATIC void write_object __proto((void));
1705 STATIC char *st_to_string __proto((st_t));
1706 STATIC char *sc_to_string __proto((sc_t));
1707 STATIC char *read_line __proto((void));
1708 STATIC void parse_input __proto((void));
1709 STATIC void mark_stabs __proto((const char *));
1710 STATIC void parse_begin __proto((const char *));
1711 STATIC void parse_bend __proto((const char *));
1712 STATIC void parse_def __proto((const char *));
1713 STATIC void parse_end __proto((const char *));
1714 STATIC void parse_ent __proto((const char *));
1715 STATIC void parse_file __proto((const char *));
1716 STATIC void parse_stabs_common
1717 __proto((const char *, const char *, const char *));
1718 STATIC void parse_stabs __proto((const char *));
1719 STATIC void parse_stabn __proto((const char *));
1720 STATIC page_t *read_seek __proto((Size_t, off_t, const char *));
1721 STATIC void copy_object __proto((void));
1722
1723 STATIC void catch_signal __proto((int));
1724 STATIC page_t *allocate_page __proto((void));
1725
1726 STATIC page_t *allocate_multiple_pages
1727 __proto((Size_t));
1728
1729 STATIC void free_multiple_pages
1730 __proto((page_t *, Size_t));
1731
1732 #ifndef MALLOC_CHECK
1733 STATIC page_t *allocate_cluster
1734 __proto((Size_t));
1735 #endif
1736
1737 STATIC forward_t *allocate_forward __proto((void));
1738 STATIC scope_t *allocate_scope __proto((void));
1739 STATIC shash_t *allocate_shash __proto((void));
1740 STATIC tag_t *allocate_tag __proto((void));
1741 STATIC thash_t *allocate_thash __proto((void));
1742 STATIC thead_t *allocate_thead __proto((void));
1743 STATIC vlinks_t *allocate_vlinks __proto((void));
1744
1745 STATIC void free_forward __proto((forward_t *));
1746 STATIC void free_scope __proto((scope_t *));
1747 STATIC void free_tag __proto((tag_t *));
1748 STATIC void free_thead __proto((thead_t *));
1749
1750 STATIC char *local_index __proto((const char *, int));
1751 STATIC char *local_rindex __proto((const char *, int));
1752
1753 #ifdef NEED_DECLARTION_SBRK
1754 extern char *sbrk __proto((int));
1755 #endif
1756
1757 #ifdef NEED_DECLARATION_FREE
1758 extern void free __proto((PTR_T));
1759 #endif
1760
1761 extern char *mktemp __proto((char *));
1762 extern long strtol __proto((const char *, char **, int));
1763
1764 extern char *optarg;
1765 extern int optind;
1766 extern int opterr;
1767 extern char *version_string;
1768 #ifndef NO_SYS_SIGLIST
1769 #ifndef SYS_SIGLIST_DECLARED
1770 extern char *sys_siglist[NSIG + 1];
1771 #endif
1772 #endif
1773
1774 #ifndef SEEK_SET /* Symbolic constants for the "fseek" function: */
1775 #define SEEK_SET 0 /* Set file pointer to offset */
1776 #define SEEK_CUR 1 /* Set file pointer to its current value plus offset */
1777 #define SEEK_END 2 /* Set file pointer to the size of the file plus offset */
1778 #endif
1779
1780 \f
1781 /* List of assembler pseudo ops and beginning sequences that need
1782 special actions. Someday, this should be a hash table, and such,
1783 but for now a linear list of names and calls to memcmp will
1784 do...... */
1785
1786 typedef struct _pseudo_ops {
1787 const char *name; /* pseudo-op in ascii */
1788 int len; /* length of name to compare */
1789 void (*func) __proto((const char *)); /* function to handle line */
1790 } pseudo_ops_t;
1791
1792 static pseudo_ops_t pseudo_ops[] = {
1793 { "#.def", sizeof("#.def")-1, parse_def },
1794 { "#.begin", sizeof("#.begin")-1, parse_begin },
1795 { "#.bend", sizeof("#.bend")-1, parse_bend },
1796 { ".end", sizeof(".end")-1, parse_end },
1797 { ".ent", sizeof(".ent")-1, parse_ent },
1798 { ".file", sizeof(".file")-1, parse_file },
1799 { "#.stabs", sizeof("#.stabs")-1, parse_stabs },
1800 { "#.stabn", sizeof("#.stabn")-1, parse_stabn },
1801 { ".stabs", sizeof(".stabs")-1, parse_stabs },
1802 { ".stabn", sizeof(".stabn")-1, parse_stabn },
1803 { "#@stabs", sizeof("#@stabs")-1, mark_stabs },
1804 };
1805
1806 \f
1807 /* Add a page to a varray object. */
1808
1809 STATIC void
1810 add_varray_page (vp)
1811 varray_t *vp; /* varray to add page to */
1812 {
1813 vlinks_t *new_links = allocate_vlinks ();
1814
1815 #ifdef MALLOC_CHECK
1816 if (vp->object_size > 1)
1817 new_links->datum = (page_t *) xcalloc (1, vp->object_size);
1818 else
1819 #endif
1820 new_links->datum = allocate_page ();
1821
1822 alloc_counts[ (int)alloc_type_varray ].total_alloc++;
1823 alloc_counts[ (int)alloc_type_varray ].total_pages++;
1824
1825 new_links->start_index = vp->num_allocated;
1826 vp->objects_last_page = 0;
1827
1828 if (vp->first == (vlinks_t *) 0) /* first allocation? */
1829 vp->first = vp->last = new_links;
1830 else
1831 { /* 2nd or greater allocation */
1832 new_links->prev = vp->last;
1833 vp->last->next = new_links;
1834 vp->last = new_links;
1835 }
1836 }
1837
1838 \f
1839 /* Compute hash code (from tree.c) */
1840
1841 #define HASHBITS 30
1842
1843 STATIC shash_t *
1844 hash_string (text, hash_len, hash_tbl, ret_hash_index)
1845 const char *text; /* ptr to text to hash */
1846 Ptrdiff_t hash_len; /* length of the text */
1847 shash_t **hash_tbl; /* hash table */
1848 symint_t *ret_hash_index; /* ptr to store hash index */
1849 {
1850 register unsigned long hi;
1851 register Ptrdiff_t i;
1852 register shash_t *ptr;
1853 register int first_ch = *text;
1854
1855 hi = hash_len;
1856 for (i = 0; i < hash_len; i++)
1857 hi = ((hi & 0x003fffff) * 613) + (text[i] & 0xff);
1858
1859 hi &= (1 << HASHBITS) - 1;
1860 hi %= SHASH_SIZE;
1861
1862 if (ret_hash_index != (symint_t *) 0)
1863 *ret_hash_index = hi;
1864
1865 for (ptr = hash_tbl[hi]; ptr != (shash_t *) 0; ptr = ptr->next)
1866 if (hash_len == ptr->len
1867 && first_ch == ptr->string[0]
1868 && memcmp ((CPTR_T) text, (CPTR_T) ptr->string, hash_len) == 0)
1869 break;
1870
1871 return ptr;
1872 }
1873
1874 \f
1875 /* Add a string (and null pad) to one of the string tables. A
1876 consequence of hashing strings, is that we don't let strings
1877 cross page boundaries. The extra nulls will be ignored. */
1878
1879 STATIC symint_t
1880 add_string (vp, hash_tbl, start, end_p1, ret_hash)
1881 varray_t *vp; /* string virtual array */
1882 shash_t **hash_tbl; /* ptr to hash table */
1883 const char *start; /* 1st byte in string */
1884 const char *end_p1; /* 1st byte after string */
1885 shash_t **ret_hash; /* return hash pointer */
1886 {
1887 register Ptrdiff_t len = end_p1 - start;
1888 register shash_t *hash_ptr;
1889 symint_t hi;
1890
1891 if (len >= PAGE_USIZE)
1892 fatal ("String too big (%ld bytes)", (long) len);
1893
1894 hash_ptr = hash_string (start, len, hash_tbl, &hi);
1895 if (hash_ptr == (shash_t *) 0)
1896 {
1897 register char *p;
1898
1899 if (vp->objects_last_page + len >= PAGE_USIZE)
1900 {
1901 vp->num_allocated
1902 = ((vp->num_allocated + PAGE_USIZE - 1) / PAGE_USIZE) * PAGE_USIZE;
1903 add_varray_page (vp);
1904 }
1905
1906 hash_ptr = allocate_shash ();
1907 hash_ptr->next = hash_tbl[hi];
1908 hash_tbl[hi] = hash_ptr;
1909
1910 hash_ptr->len = len;
1911 hash_ptr->indx = vp->num_allocated;
1912 hash_ptr->string = p = & vp->last->datum->byte[ vp->objects_last_page ];
1913
1914 vp->objects_last_page += len+1;
1915 vp->num_allocated += len+1;
1916
1917 while (len-- > 0)
1918 *p++ = *start++;
1919
1920 *p = '\0';
1921 }
1922
1923 if (ret_hash != (shash_t **) 0)
1924 *ret_hash = hash_ptr;
1925
1926 return hash_ptr->indx;
1927 }
1928
1929 \f
1930 /* Add a local symbol. */
1931
1932 STATIC symint_t
1933 add_local_symbol (str_start, str_end_p1, type, storage, value, indx)
1934 const char *str_start; /* first byte in string */
1935 const char *str_end_p1; /* first byte after string */
1936 st_t type; /* symbol type */
1937 sc_t storage; /* storage class */
1938 symint_t value; /* value of symbol */
1939 symint_t indx; /* index to local/aux. syms */
1940 {
1941 register symint_t ret;
1942 register SYMR *psym;
1943 register scope_t *pscope;
1944 register thead_t *ptag_head;
1945 register tag_t *ptag;
1946 register tag_t *ptag_next;
1947 register varray_t *vp = &cur_file_ptr->symbols;
1948 register int scope_delta = 0;
1949 shash_t *hash_ptr = (shash_t *) 0;
1950
1951 if (vp->objects_last_page == vp->objects_per_page)
1952 add_varray_page (vp);
1953
1954 psym = &vp->last->datum->sym[ vp->objects_last_page++ ];
1955
1956 psym->value = value;
1957 psym->st = (unsigned) type;
1958 psym->sc = (unsigned) storage;
1959 psym->index = indx;
1960 psym->iss = (str_start == (const char *) 0)
1961 ? 0
1962 : add_string (&cur_file_ptr->strings,
1963 &cur_file_ptr->shash_head[0],
1964 str_start,
1965 str_end_p1,
1966 &hash_ptr);
1967
1968 ret = vp->num_allocated++;
1969
1970 if (MIPS_IS_STAB(psym))
1971 return ret;
1972
1973 /* Save the symbol within the hash table if this is a static
1974 item, and it has a name. */
1975 if (hash_ptr != (shash_t *) 0
1976 && (type == st_Global || type == st_Static || type == st_Label
1977 || type == st_Proc || type == st_StaticProc))
1978 hash_ptr->sym_ptr = psym;
1979
1980 /* push or pop a scope if appropriate. */
1981 switch (type)
1982 {
1983 default:
1984 break;
1985
1986 case st_File: /* beginning of file */
1987 case st_Proc: /* procedure */
1988 case st_StaticProc: /* static procedure */
1989 case st_Block: /* begin scope */
1990 pscope = allocate_scope ();
1991 pscope->prev = cur_file_ptr->cur_scope;
1992 pscope->lsym = psym;
1993 pscope->lnumber = ret;
1994 pscope->type = type;
1995 cur_file_ptr->cur_scope = pscope;
1996
1997 if (type != st_File)
1998 scope_delta = 1;
1999
2000 /* For every block type except file, struct, union, or
2001 enumeration blocks, push a level on the tag stack. We omit
2002 file types, so that tags can span file boundaries. */
2003 if (type != st_File && storage != sc_Info)
2004 {
2005 ptag_head = allocate_thead ();
2006 ptag_head->first_tag = 0;
2007 ptag_head->prev = cur_tag_head;
2008 cur_tag_head = ptag_head;
2009 }
2010 break;
2011
2012 case st_End:
2013 pscope = cur_file_ptr->cur_scope;
2014 if (pscope == (scope_t *)0)
2015 error ("internal error, too many st_End's");
2016
2017 else
2018 {
2019 st_t begin_type = (st_t) pscope->lsym->st;
2020
2021 if (begin_type != st_File)
2022 scope_delta = -1;
2023
2024 /* Except for file, structure, union, or enumeration end
2025 blocks remove all tags created within this scope. */
2026 if (begin_type != st_File && storage != sc_Info)
2027 {
2028 ptag_head = cur_tag_head;
2029 cur_tag_head = ptag_head->prev;
2030
2031 for (ptag = ptag_head->first_tag;
2032 ptag != (tag_t *) 0;
2033 ptag = ptag_next)
2034 {
2035 if (ptag->forward_ref != (forward_t *) 0)
2036 add_unknown_tag (ptag);
2037
2038 ptag_next = ptag->same_block;
2039 ptag->hash_ptr->tag_ptr = ptag->same_name;
2040 free_tag (ptag);
2041 }
2042
2043 free_thead (ptag_head);
2044 }
2045
2046 cur_file_ptr->cur_scope = pscope->prev;
2047 psym->index = pscope->lnumber; /* blk end gets begin sym # */
2048
2049 if (storage != sc_Info)
2050 psym->iss = pscope->lsym->iss; /* blk end gets same name */
2051
2052 if (begin_type == st_File || begin_type == st_Block)
2053 pscope->lsym->index = ret+1; /* block begin gets next sym # */
2054
2055 /* Functions push two or more aux words as follows:
2056 1st word: index+1 of the end symbol
2057 2nd word: type of the function (plus any aux words needed).
2058 Also, tie the external pointer back to the function begin symbol. */
2059 else
2060 {
2061 symint_t type;
2062 pscope->lsym->index = add_aux_sym_symint (ret+1);
2063 type = add_aux_sym_tir (&last_func_type_info,
2064 hash_no,
2065 &cur_file_ptr->thash_head[0]);
2066 if (last_func_eptr)
2067 {
2068 last_func_eptr->ifd = cur_file_ptr->file_index;
2069
2070 /* The index for an external st_Proc symbol is the index
2071 of the st_Proc symbol in the local symbol table. */
2072 last_func_eptr->asym.index = psym->index;
2073 }
2074 }
2075
2076 free_scope (pscope);
2077 }
2078 }
2079
2080 cur_file_ptr->nested_scopes += scope_delta;
2081
2082 if (debug && type != st_File
2083 && (debug > 2 || type == st_Block || type == st_End
2084 || type == st_Proc || type == st_StaticProc))
2085 {
2086 char *sc_str = sc_to_string (storage);
2087 char *st_str = st_to_string (type);
2088 int depth = cur_file_ptr->nested_scopes + (scope_delta < 0);
2089
2090 fprintf (stderr,
2091 "\tlsym\tv= %10ld, depth= %2d, sc= %-12s",
2092 value, depth, sc_str);
2093
2094 if (str_start && str_end_p1 - str_start > 0)
2095 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2096 else
2097 {
2098 Size_t len = strlen (st_str);
2099 fprintf (stderr, " st= %.*s\n", len-1, st_str);
2100 }
2101 }
2102
2103 return ret;
2104 }
2105
2106 \f
2107 /* Add an external symbol. */
2108
2109 STATIC symint_t
2110 add_ext_symbol (str_start, str_end_p1, type, storage, value, indx, ifd)
2111 const char *str_start; /* first byte in string */
2112 const char *str_end_p1; /* first byte after string */
2113 st_t type; /* symbol type */
2114 sc_t storage; /* storage class */
2115 long value; /* value of symbol */
2116 symint_t indx; /* index to local/aux. syms */
2117 int ifd; /* file index */
2118 {
2119 register EXTR *psym;
2120 register varray_t *vp = &ext_symbols;
2121 shash_t *hash_ptr = (shash_t *) 0;
2122
2123 if (debug > 1)
2124 {
2125 char *sc_str = sc_to_string (storage);
2126 char *st_str = st_to_string (type);
2127
2128 fprintf (stderr,
2129 "\tesym\tv= %10ld, ifd= %2d, sc= %-12s",
2130 value, ifd, sc_str);
2131
2132 if (str_start && str_end_p1 - str_start > 0)
2133 fprintf (stderr, " st= %-11s name= %.*s\n", st_str, str_end_p1 - str_start, str_start);
2134 else
2135 fprintf (stderr, " st= %s\n", st_str);
2136 }
2137
2138 if (vp->objects_last_page == vp->objects_per_page)
2139 add_varray_page (vp);
2140
2141 psym = &vp->last->datum->esym[ vp->objects_last_page++ ];
2142
2143 psym->ifd = ifd;
2144 psym->asym.value = value;
2145 psym->asym.st = (unsigned) type;
2146 psym->asym.sc = (unsigned) storage;
2147 psym->asym.index = indx;
2148 psym->asym.iss = (str_start == (const char *) 0)
2149 ? 0
2150 : add_string (&ext_strings,
2151 &ext_str_hash[0],
2152 str_start,
2153 str_end_p1,
2154 &hash_ptr);
2155
2156 hash_ptr->esym_ptr = psym;
2157 return vp->num_allocated++;
2158 }
2159
2160 \f
2161 /* Add an auxiliary symbol (passing a symint). */
2162
2163 STATIC symint_t
2164 add_aux_sym_symint (aux_word)
2165 symint_t aux_word; /* auxiliary information word */
2166 {
2167 register AUXU *aux_ptr;
2168 register efdr_t *file_ptr = cur_file_ptr;
2169 register varray_t *vp = &file_ptr->aux_syms;
2170
2171 if (vp->objects_last_page == vp->objects_per_page)
2172 add_varray_page (vp);
2173
2174 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2175 aux_ptr->isym = aux_word;
2176
2177 return vp->num_allocated++;
2178 }
2179
2180
2181 /* Add an auxiliary symbol (passing a file/symbol index combo). */
2182
2183 STATIC symint_t
2184 add_aux_sym_rndx (file_index, sym_index)
2185 int file_index;
2186 symint_t sym_index;
2187 {
2188 register AUXU *aux_ptr;
2189 register efdr_t *file_ptr = cur_file_ptr;
2190 register varray_t *vp = &file_ptr->aux_syms;
2191
2192 if (vp->objects_last_page == vp->objects_per_page)
2193 add_varray_page (vp);
2194
2195 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2196 aux_ptr->rndx.rfd = file_index;
2197 aux_ptr->rndx.index = sym_index;
2198
2199 return vp->num_allocated++;
2200 }
2201
2202 \f
2203 /* Add an auxiliary symbol (passing the basic type and possibly
2204 type qualifiers). */
2205
2206 STATIC symint_t
2207 add_aux_sym_tir (t, state, hash_tbl)
2208 type_info_t *t; /* current type information */
2209 hash_state_t state; /* whether to hash type or not */
2210 thash_t **hash_tbl; /* pointer to hash table to use */
2211 {
2212 register AUXU *aux_ptr;
2213 register efdr_t *file_ptr = cur_file_ptr;
2214 register varray_t *vp = &file_ptr->aux_syms;
2215 static AUXU init_aux;
2216 symint_t ret;
2217 int i;
2218 AUXU aux;
2219
2220 aux = init_aux;
2221 aux.ti.bt = (int) t->basic_type;
2222 aux.ti.continued = 0;
2223 aux.ti.fBitfield = t->bitfield;
2224
2225 aux.ti.tq0 = (int) t->type_qualifiers[0];
2226 aux.ti.tq1 = (int) t->type_qualifiers[1];
2227 aux.ti.tq2 = (int) t->type_qualifiers[2];
2228 aux.ti.tq3 = (int) t->type_qualifiers[3];
2229 aux.ti.tq4 = (int) t->type_qualifiers[4];
2230 aux.ti.tq5 = (int) t->type_qualifiers[5];
2231
2232
2233 /* For anything that adds additional information, we must not hash,
2234 so check here, and reset our state. */
2235
2236 if (state != hash_no
2237 && (t->type_qualifiers[0] == tq_Array
2238 || t->type_qualifiers[1] == tq_Array
2239 || t->type_qualifiers[2] == tq_Array
2240 || t->type_qualifiers[3] == tq_Array
2241 || t->type_qualifiers[4] == tq_Array
2242 || t->type_qualifiers[5] == tq_Array
2243 || t->basic_type == bt_Struct
2244 || t->basic_type == bt_Union
2245 || t->basic_type == bt_Enum
2246 || t->bitfield
2247 || t->num_dims > 0))
2248 state = hash_no;
2249
2250 /* See if we can hash this type, and save some space, but some types
2251 can't be hashed (because they contain arrays or continuations),
2252 and others can be put into the hash list, but cannot use existing
2253 types because other aux entries precede this one. */
2254
2255 if (state != hash_no)
2256 {
2257 register thash_t *hash_ptr;
2258 register symint_t hi;
2259
2260 hi = aux.isym & ((1 << HASHBITS) - 1);
2261 hi %= THASH_SIZE;
2262
2263 for (hash_ptr = hash_tbl[hi];
2264 hash_ptr != (thash_t *) 0;
2265 hash_ptr = hash_ptr->next)
2266 {
2267 if (aux.isym == hash_ptr->type.isym)
2268 break;
2269 }
2270
2271 if (hash_ptr != (thash_t *) 0 && state == hash_yes)
2272 return hash_ptr->indx;
2273
2274 if (hash_ptr == (thash_t *) 0)
2275 {
2276 hash_ptr = allocate_thash ();
2277 hash_ptr->next = hash_tbl[hi];
2278 hash_ptr->type = aux;
2279 hash_ptr->indx = vp->num_allocated;
2280 hash_tbl[hi] = hash_ptr;
2281 }
2282 }
2283
2284 /* Everything is set up, add the aux symbol. */
2285 if (vp->objects_last_page == vp->objects_per_page)
2286 add_varray_page (vp);
2287
2288 aux_ptr = &vp->last->datum->aux[ vp->objects_last_page++ ];
2289 *aux_ptr = aux;
2290
2291 ret = vp->num_allocated++;
2292
2293 /* Add bitfield length if it exists.
2294
2295 NOTE: Mips documentation claims bitfield goes at the end of the
2296 AUX record, but the DECstation compiler emits it here.
2297 (This would only make a difference for enum bitfields.)
2298
2299 Also note: We use the last size given since gcc may emit 2
2300 for an enum bitfield. */
2301
2302 if (t->bitfield)
2303 (void) add_aux_sym_symint ((symint_t)t->sizes[t->num_sizes-1]);
2304
2305
2306 /* Add tag information if needed. Structure, union, and enum
2307 references add 2 aux symbols: a [file index, symbol index]
2308 pointer to the structure type, and the current file index. */
2309
2310 if (t->basic_type == bt_Struct
2311 || t->basic_type == bt_Union
2312 || t->basic_type == bt_Enum)
2313 {
2314 register symint_t file_index = t->tag_ptr->ifd;
2315 register symint_t sym_index = t->tag_ptr->indx;
2316
2317 if (t->unknown_tag)
2318 {
2319 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2320 (void) add_aux_sym_symint ((symint_t)-1);
2321 }
2322 else if (sym_index != indexNil)
2323 {
2324 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2325 (void) add_aux_sym_symint (file_index);
2326 }
2327 else
2328 {
2329 register forward_t *forward_ref = allocate_forward ();
2330
2331 forward_ref->type_ptr = aux_ptr;
2332 forward_ref->next = t->tag_ptr->forward_ref;
2333 t->tag_ptr->forward_ref = forward_ref;
2334
2335 (void) add_aux_sym_rndx (ST_RFDESCAPE, sym_index);
2336 forward_ref->index_ptr
2337 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2338
2339 (void) add_aux_sym_symint (file_index);
2340 forward_ref->ifd_ptr
2341 = &vp->last->datum->aux[ vp->objects_last_page - 1];
2342 }
2343 }
2344
2345 /* Add information about array bounds if they exist. */
2346 for (i = 0; i < t->num_dims; i++)
2347 {
2348 (void) add_aux_sym_rndx (ST_RFDESCAPE,
2349 cur_file_ptr->int_type);
2350
2351 (void) add_aux_sym_symint (cur_file_ptr->file_index); /* file index*/
2352 (void) add_aux_sym_symint ((symint_t) 0); /* low bound */
2353 (void) add_aux_sym_symint (t->dimensions[i] - 1); /* high bound*/
2354 (void) add_aux_sym_symint ((t->dimensions[i] == 0) /* stride */
2355 ? 0
2356 : (t->sizes[i] * 8) / t->dimensions[i]);
2357 };
2358
2359 /* NOTE: Mips documentation claims that the bitfield width goes here.
2360 But it needs to be emitted earlier. */
2361
2362 return ret;
2363 }
2364
2365 \f
2366 /* Add a tag to the tag table (unless it already exists). */
2367
2368 STATIC tag_t *
2369 get_tag (tag_start, tag_end_p1, indx, basic_type)
2370 const char *tag_start; /* 1st byte of tag name */
2371 const char *tag_end_p1; /* 1st byte after tag name */
2372 symint_t indx; /* index of tag start block */
2373 bt_t basic_type; /* bt_Struct, bt_Union, or bt_Enum */
2374 {
2375 shash_t *hash_ptr;
2376 tag_t *tag_ptr;
2377 hash_ptr = hash_string (tag_start,
2378 tag_end_p1 - tag_start,
2379 &tag_hash[0],
2380 (symint_t *) 0);
2381
2382 if (hash_ptr != (shash_t *) 0
2383 && hash_ptr->tag_ptr != (tag_t *) 0)
2384 {
2385 tag_ptr = hash_ptr->tag_ptr;
2386 if (indx != indexNil)
2387 {
2388 tag_ptr->basic_type = basic_type;
2389 tag_ptr->ifd = cur_file_ptr->file_index;
2390 tag_ptr->indx = indx;
2391 }
2392 return tag_ptr;
2393 }
2394
2395 (void) add_string (&tag_strings,
2396 &tag_hash[0],
2397 tag_start,
2398 tag_end_p1,
2399 &hash_ptr);
2400
2401 tag_ptr = allocate_tag ();
2402 tag_ptr->forward_ref = (forward_t *) 0;
2403 tag_ptr->hash_ptr = hash_ptr;
2404 tag_ptr->same_name = hash_ptr->tag_ptr;
2405 tag_ptr->basic_type = basic_type;
2406 tag_ptr->indx = indx;
2407 tag_ptr->ifd = (indx == indexNil) ? -1 : cur_file_ptr->file_index;
2408 tag_ptr->same_block = cur_tag_head->first_tag;
2409
2410 cur_tag_head->first_tag = tag_ptr;
2411 hash_ptr->tag_ptr = tag_ptr;
2412
2413 return tag_ptr;
2414 }
2415
2416 \f
2417 /* Add an unknown {struct, union, enum} tag. */
2418
2419 STATIC void
2420 add_unknown_tag (ptag)
2421 tag_t *ptag; /* pointer to tag information */
2422 {
2423 shash_t *hash_ptr = ptag->hash_ptr;
2424 char *name_start = hash_ptr->string;
2425 char *name_end_p1 = name_start + hash_ptr->len;
2426 forward_t *f_next = ptag->forward_ref;
2427 forward_t *f_cur;
2428 int sym_index;
2429 int file_index = cur_file_ptr->file_index;
2430
2431 if (debug > 1)
2432 {
2433 char *agg_type = "{unknown aggregate type}";
2434 switch (ptag->basic_type)
2435 {
2436 case bt_Struct: agg_type = "struct"; break;
2437 case bt_Union: agg_type = "union"; break;
2438 case bt_Enum: agg_type = "enum"; break;
2439 default: break;
2440 }
2441
2442 fprintf (stderr, "unknown %s %.*s found\n", agg_type,
2443 hash_ptr->len, name_start);
2444 }
2445
2446 sym_index = add_local_symbol (name_start,
2447 name_end_p1,
2448 st_Block,
2449 sc_Info,
2450 (symint_t) 0,
2451 (symint_t) 0);
2452
2453 (void) add_local_symbol (name_start,
2454 name_end_p1,
2455 st_End,
2456 sc_Info,
2457 (symint_t) 0,
2458 (symint_t) 0);
2459
2460 while (f_next != (forward_t *) 0)
2461 {
2462 f_cur = f_next;
2463 f_next = f_next->next;
2464
2465 f_cur->ifd_ptr->isym = file_index;
2466 f_cur->index_ptr->rndx.index = sym_index;
2467
2468 free_forward (f_cur);
2469 }
2470
2471 return;
2472 }
2473
2474 \f
2475 /* Add a procedure to the current file's list of procedures, and record
2476 this is the current procedure. If the assembler created a PDR for
2477 this procedure, use that to initialize the current PDR. */
2478
2479 STATIC void
2480 add_procedure (func_start, func_end_p1)
2481 const char *func_start; /* 1st byte of func name */
2482 const char *func_end_p1; /* 1st byte after func name */
2483 {
2484 register PDR *new_proc_ptr;
2485 register efdr_t *file_ptr = cur_file_ptr;
2486 register varray_t *vp = &file_ptr->procs;
2487 register symint_t value = 0;
2488 register st_t proc_type = st_Proc;
2489 register shash_t *shash_ptr = hash_string (func_start,
2490 func_end_p1 - func_start,
2491 &orig_str_hash[0],
2492 (symint_t *) 0);
2493
2494 if (debug)
2495 fputc ('\n', stderr);
2496
2497 if (vp->objects_last_page == vp->objects_per_page)
2498 add_varray_page (vp);
2499
2500 cur_proc_ptr = new_proc_ptr = &vp->last->datum->proc[ vp->objects_last_page++ ];
2501
2502 vp->num_allocated++;
2503
2504
2505 /* Did the assembler create this procedure? If so, get the PDR information. */
2506 cur_oproc_ptr = (PDR *) 0;
2507 if (shash_ptr != (shash_t *) 0)
2508 {
2509 register PDR *old_proc_ptr = shash_ptr->proc_ptr;
2510 register SYMR *sym_ptr = shash_ptr->sym_ptr;
2511
2512 if (old_proc_ptr != (PDR *) 0
2513 && sym_ptr != (SYMR *) 0
2514 && ((st_t)sym_ptr->st == st_Proc || (st_t)sym_ptr->st == st_StaticProc))
2515 {
2516 cur_oproc_begin = sym_ptr;
2517 cur_oproc_end = shash_ptr->end_ptr;
2518 value = sym_ptr->value;
2519
2520 cur_oproc_ptr = old_proc_ptr;
2521 proc_type = (st_t)sym_ptr->st;
2522 *new_proc_ptr = *old_proc_ptr; /* initialize */
2523 }
2524 }
2525
2526 if (cur_oproc_ptr == (PDR *) 0)
2527 error ("Did not find a PDR block for %.*s", func_end_p1 - func_start, func_start);
2528
2529 /* Determine the start of symbols. */
2530 new_proc_ptr->isym = file_ptr->symbols.num_allocated;
2531
2532 /* Push the start of the function. */
2533 (void) add_local_symbol (func_start, func_end_p1,
2534 proc_type, sc_Text,
2535 value,
2536 (symint_t) 0);
2537 }
2538
2539 \f
2540 /* Add a new filename, and set up all of the file relative
2541 virtual arrays (strings, symbols, aux syms, etc.). Record
2542 where the current file structure lives. */
2543
2544 STATIC void
2545 add_file (file_start, file_end_p1)
2546 const char *file_start; /* first byte in string */
2547 const char *file_end_p1; /* first byte after string */
2548 {
2549 static char zero_bytes[2] = { '\0', '\0' };
2550
2551 register Ptrdiff_t len = file_end_p1 - file_start;
2552 register int first_ch = *file_start;
2553 register efdr_t *file_ptr;
2554
2555 if (debug)
2556 fprintf (stderr, "\tfile\t%.*s\n", len, file_start);
2557
2558 /* See if the file has already been created. */
2559 for (file_ptr = first_file;
2560 file_ptr != (efdr_t *) 0;
2561 file_ptr = file_ptr->next_file)
2562 {
2563 if (first_ch == file_ptr->name[0]
2564 && file_ptr->name[len] == '\0'
2565 && memcmp ((CPTR_T) file_start, (CPTR_T) file_ptr->name, len) == 0)
2566 {
2567 cur_file_ptr = file_ptr;
2568 break;
2569 }
2570 }
2571
2572 /* If this is a new file, create it. */
2573 if (file_ptr == (efdr_t *) 0)
2574 {
2575 if (file_desc.objects_last_page == file_desc.objects_per_page)
2576 add_varray_page (&file_desc);
2577
2578 file_ptr = cur_file_ptr
2579 = &file_desc.last->datum->file[ file_desc.objects_last_page++ ];
2580 *file_ptr = init_file;
2581
2582 file_ptr->file_index = file_desc.num_allocated++;
2583
2584 /* Allocate the string hash table. */
2585 file_ptr->shash_head = (shash_t **) allocate_page ();
2586
2587 /* Make sure 0 byte in string table is null */
2588 add_string (&file_ptr->strings,
2589 &file_ptr->shash_head[0],
2590 &zero_bytes[0],
2591 &zero_bytes[0],
2592 (shash_t **) 0);
2593
2594 if (file_end_p1 - file_start > PAGE_USIZE-2)
2595 fatal ("Filename goes over one page boundary.");
2596
2597 /* Push the start of the filename. We assume that the filename
2598 will be stored at string offset 1. */
2599 (void) add_local_symbol (file_start, file_end_p1, st_File, sc_Text,
2600 (symint_t) 0, (symint_t) 0);
2601 file_ptr->fdr.rss = 1;
2602 file_ptr->name = &file_ptr->strings.last->datum->byte[1];
2603 file_ptr->name_len = file_end_p1 - file_start;
2604
2605 /* Update the linked list of file descriptors. */
2606 *last_file_ptr = file_ptr;
2607 last_file_ptr = &file_ptr->next_file;
2608
2609 /* Add void & int types to the file (void should be first to catch
2610 errant 0's within the index fields). */
2611 file_ptr->void_type = add_aux_sym_tir (&void_type_info,
2612 hash_yes,
2613 &cur_file_ptr->thash_head[0]);
2614
2615 file_ptr->int_type = add_aux_sym_tir (&int_type_info,
2616 hash_yes,
2617 &cur_file_ptr->thash_head[0]);
2618 }
2619 }
2620
2621 \f
2622 /* Add a stream of random bytes to a varray. */
2623
2624 STATIC void
2625 add_bytes (vp, input_ptr, nitems)
2626 varray_t *vp; /* virtual array to add too */
2627 char *input_ptr; /* start of the bytes */
2628 Size_t nitems; /* # items to move */
2629 {
2630 register Size_t move_items;
2631 register Size_t move_bytes;
2632 register char *ptr;
2633
2634 while (nitems > 0)
2635 {
2636 if (vp->objects_last_page >= vp->objects_per_page)
2637 add_varray_page (vp);
2638
2639 ptr = &vp->last->datum->byte[ vp->objects_last_page * vp->object_size ];
2640 move_items = vp->objects_per_page - vp->objects_last_page;
2641 if (move_items > nitems)
2642 move_items = nitems;
2643
2644 move_bytes = move_items * vp->object_size;
2645 nitems -= move_items;
2646
2647 if (move_bytes >= 32)
2648 {
2649 (void) memcpy ((PTR_T) ptr, (CPTR_T) input_ptr, move_bytes);
2650 input_ptr += move_bytes;
2651 }
2652 else
2653 {
2654 while (move_bytes-- > 0)
2655 *ptr++ = *input_ptr++;
2656 }
2657 }
2658 }
2659
2660 \f
2661 /* Convert storage class to string. */
2662
2663 STATIC char *
2664 sc_to_string(storage_class)
2665 sc_t storage_class;
2666 {
2667 switch(storage_class)
2668 {
2669 case sc_Nil: return "Nil,";
2670 case sc_Text: return "Text,";
2671 case sc_Data: return "Data,";
2672 case sc_Bss: return "Bss,";
2673 case sc_Register: return "Register,";
2674 case sc_Abs: return "Abs,";
2675 case sc_Undefined: return "Undefined,";
2676 case sc_CdbLocal: return "CdbLocal,";
2677 case sc_Bits: return "Bits,";
2678 case sc_CdbSystem: return "CdbSystem,";
2679 case sc_RegImage: return "RegImage,";
2680 case sc_Info: return "Info,";
2681 case sc_UserStruct: return "UserStruct,";
2682 case sc_SData: return "SData,";
2683 case sc_SBss: return "SBss,";
2684 case sc_RData: return "RData,";
2685 case sc_Var: return "Var,";
2686 case sc_Common: return "Common,";
2687 case sc_SCommon: return "SCommon,";
2688 case sc_VarRegister: return "VarRegister,";
2689 case sc_Variant: return "Variant,";
2690 case sc_SUndefined: return "SUndefined,";
2691 case sc_Init: return "Init,";
2692 case sc_Max: return "Max,";
2693 }
2694
2695 return "???,";
2696 }
2697
2698 \f
2699 /* Convert symbol type to string. */
2700
2701 STATIC char *
2702 st_to_string(symbol_type)
2703 st_t symbol_type;
2704 {
2705 switch(symbol_type)
2706 {
2707 case st_Nil: return "Nil,";
2708 case st_Global: return "Global,";
2709 case st_Static: return "Static,";
2710 case st_Param: return "Param,";
2711 case st_Local: return "Local,";
2712 case st_Label: return "Label,";
2713 case st_Proc: return "Proc,";
2714 case st_Block: return "Block,";
2715 case st_End: return "End,";
2716 case st_Member: return "Member,";
2717 case st_Typedef: return "Typedef,";
2718 case st_File: return "File,";
2719 case st_RegReloc: return "RegReloc,";
2720 case st_Forward: return "Forward,";
2721 case st_StaticProc: return "StaticProc,";
2722 case st_Constant: return "Constant,";
2723 case st_Str: return "String,";
2724 case st_Number: return "Number,";
2725 case st_Expr: return "Expr,";
2726 case st_Type: return "Type,";
2727 case st_Max: return "Max,";
2728 }
2729
2730 return "???,";
2731 }
2732
2733 \f
2734 /* Read a line from standard input, and return the start of the buffer
2735 (which is grows if the line is too big). We split lines at the
2736 semi-colon, and return each logical line independently. */
2737
2738 STATIC char *
2739 read_line __proto((void))
2740 {
2741 static int line_split_p = 0;
2742 register int string_p = 0;
2743 register int comment_p = 0;
2744 register int ch;
2745 register char *ptr;
2746
2747 if (cur_line_start == (char *) 0)
2748 { /* allocate initial page */
2749 cur_line_start = (char *) allocate_page ();
2750 cur_line_alloc = PAGE_SIZE;
2751 }
2752
2753 if (!line_split_p)
2754 line_number++;
2755
2756 line_split_p = 0;
2757 cur_line_nbytes = 0;
2758
2759 for (ptr = cur_line_start; (ch = getchar ()) != EOF; *ptr++ = ch)
2760 {
2761 if (++cur_line_nbytes >= cur_line_alloc-1)
2762 {
2763 register int num_pages = cur_line_alloc / PAGE_SIZE;
2764 register char *old_buffer = cur_line_start;
2765
2766 cur_line_alloc += PAGE_SIZE;
2767 cur_line_start = (char *) allocate_multiple_pages (num_pages+1);
2768 memcpy (cur_line_start, old_buffer, num_pages * PAGE_SIZE);
2769
2770 ptr = cur_line_start + cur_line_nbytes - 1;
2771 }
2772
2773 if (ch == '\n')
2774 {
2775 *ptr++ = '\n';
2776 *ptr = '\0';
2777 cur_line_ptr = cur_line_start;
2778 return cur_line_ptr;
2779 }
2780
2781 else if (ch == '\0')
2782 error ("Null character found in input");
2783
2784 else if (!comment_p)
2785 {
2786 if (ch == '"')
2787 string_p = !string_p;
2788
2789 else if (ch == '#')
2790 comment_p++;
2791
2792 else if (ch == ';' && !string_p)
2793 {
2794 line_split_p = 1;
2795 *ptr++ = '\n';
2796 *ptr = '\0';
2797 cur_line_ptr = cur_line_start;
2798 return cur_line_ptr;
2799 }
2800 }
2801 }
2802
2803 if (ferror (stdin))
2804 pfatal_with_name (input_name);
2805
2806 cur_line_ptr = (char *) 0;
2807 return (char *) 0;
2808 }
2809
2810 \f
2811 /* Parse #.begin directives which have a label as the first argument
2812 which gives the location of the start of the block. */
2813
2814 STATIC void
2815 parse_begin (start)
2816 const char *start; /* start of directive */
2817 {
2818 const char *end_p1; /* end of label */
2819 int ch;
2820 shash_t *hash_ptr; /* hash pointer to lookup label */
2821
2822 if (cur_file_ptr == (efdr_t *) 0)
2823 {
2824 error ("#.begin directive without a preceding .file directive");
2825 return;
2826 }
2827
2828 if (cur_proc_ptr == (PDR *) 0)
2829 {
2830 error ("#.begin directive without a preceding .ent directive");
2831 return;
2832 }
2833
2834 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2835 ;
2836
2837 hash_ptr = hash_string (start,
2838 end_p1 - start,
2839 &orig_str_hash[0],
2840 (symint_t *) 0);
2841
2842 if (hash_ptr == (shash_t *) 0)
2843 {
2844 error ("Label %.*s not found for #.begin", end_p1 - start, start);
2845 return;
2846 }
2847
2848 if (cur_oproc_begin == (SYMR *) 0)
2849 {
2850 error ("Procedure table %.*s not found for #.begin", end_p1 - start, start);
2851 return;
2852 }
2853
2854 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2855 st_Block, sc_Text,
2856 (symint_t) hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2857 (symint_t) 0);
2858 }
2859
2860 \f
2861 /* Parse #.bend directives which have a label as the first argument
2862 which gives the location of the end of the block. */
2863
2864 STATIC void
2865 parse_bend (start)
2866 const char *start; /* start of directive */
2867 {
2868 const char *end_p1; /* end of label */
2869 int ch;
2870 shash_t *hash_ptr; /* hash pointer to lookup label */
2871
2872 if (cur_file_ptr == (efdr_t *) 0)
2873 {
2874 error ("#.begin directive without a preceding .file directive");
2875 return;
2876 }
2877
2878 if (cur_proc_ptr == (PDR *) 0)
2879 {
2880 error ("#.bend directive without a preceding .ent directive");
2881 return;
2882 }
2883
2884 for (end_p1 = start; (ch = *end_p1) != '\0' && !isspace (ch); end_p1++)
2885 ;
2886
2887 hash_ptr = hash_string (start,
2888 end_p1 - start,
2889 &orig_str_hash[0],
2890 (symint_t *) 0);
2891
2892 if (hash_ptr == (shash_t *) 0)
2893 {
2894 error ("Label %.*s not found for #.bend", end_p1 - start, start);
2895 return;
2896 }
2897
2898 if (cur_oproc_begin == (SYMR *) 0)
2899 {
2900 error ("Procedure table %.*s not found for #.bend", end_p1 - start, start);
2901 return;
2902 }
2903
2904 (void) add_local_symbol ((const char *) 0, (const char *) 0,
2905 st_End, sc_Text,
2906 (symint_t)hash_ptr->sym_ptr->value - cur_oproc_begin->value,
2907 (symint_t) 0);
2908 }
2909
2910 \f
2911 /* Parse #.def directives, which are contain standard COFF subdirectives
2912 to describe the debugging format. These subdirectives include:
2913
2914 .scl specify storage class
2915 .val specify a value
2916 .endef specify end of COFF directives
2917 .type specify the type
2918 .size specify the size of an array
2919 .dim specify an array dimension
2920 .tag specify a tag for a struct, union, or enum. */
2921
2922 STATIC void
2923 parse_def (name_start)
2924 const char *name_start; /* start of directive */
2925 {
2926 const char *dir_start; /* start of current directive*/
2927 const char *dir_end_p1; /* end+1 of current directive*/
2928 const char *arg_start; /* start of current argument */
2929 const char *arg_end_p1; /* end+1 of current argument */
2930 const char *name_end_p1; /* end+1 of label */
2931 const char *tag_start = (const char *) 0; /* start of tag name */
2932 const char *tag_end_p1 = (const char *) 0; /* end+1 of tag name */
2933 sc_t storage_class = sc_Nil;
2934 st_t symbol_type = st_Nil;
2935 type_info_t t;
2936 EXTR *eptr = (EXTR *) 0; /* ext. sym equivalent to def*/
2937 int is_function = 0; /* != 0 if function */
2938 symint_t value = 0;
2939 symint_t indx = cur_file_ptr->void_type;
2940 int error_line = 0;
2941 symint_t arg_number;
2942 symint_t temp_array[ N_TQ ];
2943 int arg_was_number;
2944 int ch, i;
2945 Ptrdiff_t len;
2946
2947 static int inside_enumeration = 0; /* is this an enumeration? */
2948
2949
2950 /* Initialize the type information. */
2951 t = type_info_init;
2952
2953
2954 /* Search for the end of the name being defined. */
2955 /* Allow spaces and such in names for G++ templates, which produce stabs
2956 that look like:
2957
2958 #.def SMANIP<long unsigned int>; .scl 10; .type 0x8; .size 8; .endef */
2959
2960 for (name_end_p1 = name_start; (ch = *name_end_p1) != ';' && ch != '\0'; name_end_p1++)
2961 ;
2962
2963 if (ch == '\0')
2964 {
2965 error_line = __LINE__;
2966 saber_stop ();
2967 goto bomb_out;
2968 }
2969
2970 /* Parse the remaining subdirectives now. */
2971 dir_start = name_end_p1+1;
2972 for (;;)
2973 {
2974 while ((ch = *dir_start) == ' ' || ch == '\t')
2975 ++dir_start;
2976
2977 if (ch != '.')
2978 {
2979 error_line = __LINE__;
2980 saber_stop ();
2981 goto bomb_out;
2982 }
2983
2984 /* Are we done? */
2985 if (dir_start[1] == 'e'
2986 && memcmp (dir_start, ".endef", sizeof (".endef")-1) == 0)
2987 break;
2988
2989 /* Pick up the subdirective now */
2990 for (dir_end_p1 = dir_start+1;
2991 (ch = *dir_end_p1) != ' ' && ch != '\t';
2992 dir_end_p1++)
2993 {
2994 if (ch == '\0' || isspace (ch))
2995 {
2996 error_line = __LINE__;
2997 saber_stop ();
2998 goto bomb_out;
2999 }
3000 }
3001
3002 /* Pick up the subdirective argument now. */
3003 arg_was_number = arg_number = 0;
3004 arg_end_p1 = (const char *) 0;
3005 arg_start = dir_end_p1+1;
3006 ch = *arg_start;
3007 while (ch == ' ' || ch == '\t')
3008 ch = *++arg_start;
3009
3010 if (isdigit (ch) || ch == '-' || ch == '+')
3011 {
3012 int ch2;
3013 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3014 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3015 arg_was_number++;
3016 }
3017
3018 else if (ch == '\0' || isspace (ch))
3019 {
3020 error_line = __LINE__;
3021 saber_stop ();
3022 goto bomb_out;
3023 }
3024
3025 if (!arg_was_number)
3026 {
3027 /* Allow spaces and such in names for G++ templates. */
3028 for (arg_end_p1 = arg_start+1;
3029 (ch = *arg_end_p1) != ';' && ch != '\0';
3030 arg_end_p1++)
3031 ;
3032
3033 if (ch == '\0')
3034 {
3035 error_line = __LINE__;
3036 saber_stop ();
3037 goto bomb_out;
3038 }
3039 }
3040
3041 /* Classify the directives now. */
3042 len = dir_end_p1 - dir_start;
3043 switch (dir_start[1])
3044 {
3045 default:
3046 error_line = __LINE__;
3047 saber_stop ();
3048 goto bomb_out;
3049
3050 case 'd':
3051 if (len == sizeof (".dim")-1
3052 && memcmp (dir_start, ".dim", sizeof (".dim")-1) == 0
3053 && arg_was_number)
3054 {
3055 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3056
3057 *t_ptr = arg_number;
3058 while (*arg_end_p1 == ',' && arg_was_number)
3059 {
3060 arg_start = arg_end_p1+1;
3061 ch = *arg_start;
3062 while (ch == ' ' || ch == '\t')
3063 ch = *++arg_start;
3064
3065 arg_was_number = 0;
3066 if (isdigit (ch) || ch == '-' || ch == '+')
3067 {
3068 int ch2;
3069 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3070 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3071 arg_was_number++;
3072
3073 if (t_ptr == &temp_array[0])
3074 {
3075 error_line = __LINE__;
3076 saber_stop ();
3077 goto bomb_out;
3078 }
3079
3080 *--t_ptr = arg_number;
3081 }
3082 }
3083
3084 /* Reverse order of dimensions. */
3085 while (t_ptr <= &temp_array[ N_TQ-1 ])
3086 {
3087 if (t.num_dims >= N_TQ-1)
3088 {
3089 error_line = __LINE__;
3090 saber_stop ();
3091 goto bomb_out;
3092 }
3093
3094 t.dimensions[ t.num_dims++ ] = *t_ptr++;
3095 }
3096 break;
3097 }
3098 else
3099 {
3100 error_line = __LINE__;
3101 saber_stop ();
3102 goto bomb_out;
3103 }
3104
3105
3106 case 's':
3107 if (len == sizeof (".scl")-1
3108 && memcmp (dir_start, ".scl", sizeof (".scl")-1) == 0
3109 && arg_was_number
3110 && arg_number < ((symint_t) C_MAX))
3111 {
3112 /* If the symbol is a static or external, we have
3113 already gotten the appropriate type and class, so
3114 make sure we don't override those values. This is
3115 needed because there are some type and classes that
3116 are not in COFF, such as short data, etc. */
3117 if (symbol_type == st_Nil)
3118 {
3119 symbol_type = map_coff_sym_type[arg_number];
3120 storage_class = map_coff_storage [arg_number];
3121 }
3122 break;
3123 }
3124
3125 else if (len == sizeof (".size")-1
3126 && memcmp (dir_start, ".size", sizeof (".size")-1) == 0
3127 && arg_was_number)
3128 {
3129 symint_t *t_ptr = &temp_array[ N_TQ-1 ];
3130
3131 *t_ptr = arg_number;
3132 while (*arg_end_p1 == ',' && arg_was_number)
3133 {
3134 arg_start = arg_end_p1+1;
3135 ch = *arg_start;
3136 while (ch == ' ' || ch == '\t')
3137 ch = *++arg_start;
3138
3139 arg_was_number = 0;
3140 if (isdigit (ch) || ch == '-' || ch == '+')
3141 {
3142 int ch2;
3143 arg_number = strtol (arg_start, (char **) &arg_end_p1, 0);
3144 if (arg_end_p1 != arg_start || (ch2 = *arg_end_p1 != ';') || ch2 != ',')
3145 arg_was_number++;
3146
3147 if (t_ptr == &temp_array[0])
3148 {
3149 error_line = __LINE__;
3150 saber_stop ();
3151 goto bomb_out;
3152 }
3153
3154 *--t_ptr = arg_number;
3155 }
3156 }
3157
3158 /* Reverse order of sizes. */
3159 while (t_ptr <= &temp_array[ N_TQ-1 ])
3160 {
3161 if (t.num_sizes >= N_TQ-1)
3162 {
3163 error_line = __LINE__;
3164 saber_stop ();
3165 goto bomb_out;
3166 }
3167
3168 t.sizes[ t.num_sizes++ ] = *t_ptr++;
3169 }
3170 break;
3171 }
3172
3173 else
3174 {
3175 error_line = __LINE__;
3176 saber_stop ();
3177 goto bomb_out;
3178 }
3179
3180
3181 case 't':
3182 if (len == sizeof (".type")-1
3183 && memcmp (dir_start, ".type", sizeof (".type")-1) == 0
3184 && arg_was_number)
3185 {
3186 tq_t *tq_ptr = &t.type_qualifiers[0];
3187
3188 t.orig_type = (coff_type_t) (arg_number & N_BTMASK);
3189 t.basic_type = map_coff_types [(int)t.orig_type];
3190 for (i = N_TQ-1; i >= 0; i--)
3191 {
3192 int dt = (arg_number >> ((i * N_TQ_SHIFT) + N_BT_SHIFT)
3193 & N_TMASK);
3194
3195 if (dt != (int)DT_NON)
3196 *tq_ptr++ = map_coff_derived_type [dt];
3197 }
3198
3199 /* If this is a function, ignore it, so that we don't get
3200 two entries (one from the .ent, and one for the .def
3201 that precedes it). Save the type information so that
3202 the end block can properly add it after the begin block
3203 index. For MIPS knows what reason, we must strip off
3204 the function type at this point. */
3205 if (tq_ptr != &t.type_qualifiers[0] && tq_ptr[-1] == tq_Proc)
3206 {
3207 is_function = 1;
3208 tq_ptr[-1] = tq_Nil;
3209 }
3210
3211 break;
3212 }
3213
3214 else if (len == sizeof (".tag")-1
3215 && memcmp (dir_start, ".tag", sizeof (".tag")-1) == 0)
3216 {
3217 tag_start = arg_start;
3218 tag_end_p1 = arg_end_p1;
3219 break;
3220 }
3221
3222 else
3223 {
3224 error_line = __LINE__;
3225 saber_stop ();
3226 goto bomb_out;
3227 }
3228
3229
3230 case 'v':
3231 if (len == sizeof (".val")-1
3232 && memcmp (dir_start, ".val", sizeof (".val")-1) == 0)
3233 {
3234 if (arg_was_number)
3235 value = arg_number;
3236
3237 /* If the value is not an integer value, it must be the
3238 name of a static or global item. Look up the name in
3239 the original symbol table to pick up the storage
3240 class, symbol type, etc. */
3241 else
3242 {
3243 shash_t *orig_hash_ptr; /* hash within orig sym table*/
3244 shash_t *ext_hash_ptr; /* hash within ext. sym table*/
3245
3246 ext_hash_ptr = hash_string (arg_start,
3247 arg_end_p1 - arg_start,
3248 &ext_str_hash[0],
3249 (symint_t *) 0);
3250
3251 if (ext_hash_ptr != (shash_t *) 0
3252 && ext_hash_ptr->esym_ptr != (EXTR *) 0)
3253 eptr = ext_hash_ptr->esym_ptr;
3254
3255 orig_hash_ptr = hash_string (arg_start,
3256 arg_end_p1 - arg_start,
3257 &orig_str_hash[0],
3258 (symint_t *) 0);
3259
3260 if ((orig_hash_ptr == (shash_t *) 0
3261 || orig_hash_ptr->sym_ptr == (SYMR *) 0)
3262 && eptr == (EXTR *) 0)
3263 {
3264 fprintf (stderr, "warning, %.*s not found in original or external symbol tables, value defaults to 0\n",
3265 arg_end_p1 - arg_start,
3266 arg_start);
3267 value = 0;
3268 }
3269 else
3270 {
3271 SYMR *ptr = (orig_hash_ptr != (shash_t *) 0
3272 && orig_hash_ptr->sym_ptr != (SYMR *) 0)
3273 ? orig_hash_ptr->sym_ptr
3274 : &eptr->asym;
3275
3276 symbol_type = (st_t) ptr->st;
3277 storage_class = (sc_t) ptr->sc;
3278 value = ptr->value;
3279 }
3280 }
3281 break;
3282 }
3283 else
3284 {
3285 error_line = __LINE__;
3286 saber_stop ();
3287 goto bomb_out;
3288 }
3289 }
3290
3291 /* Set up to find next directive. */
3292 dir_start = arg_end_p1 + 1;
3293 }
3294
3295
3296 if (storage_class == sc_Bits)
3297 {
3298 t.bitfield = 1;
3299 t.extra_sizes = 1;
3300 }
3301 else
3302 t.extra_sizes = 0;
3303
3304 if (t.num_dims > 0)
3305 {
3306 int num_real_sizes = t.num_sizes - t.extra_sizes;
3307 int diff = t.num_dims - num_real_sizes;
3308 int i = t.num_dims - 1;
3309 int j;
3310
3311 if (num_real_sizes != 1 || diff < 0)
3312 {
3313 error_line = __LINE__;
3314 saber_stop ();
3315 goto bomb_out;
3316 }
3317
3318 /* If this is an array, make sure the same number of dimensions
3319 and sizes were passed, creating extra sizes for multiply
3320 dimensioned arrays if not passed. */
3321
3322 if (diff)
3323 {
3324 for (j = (sizeof (t.sizes) / sizeof (t.sizes[0])) - 1; j >= 0; j--)
3325 t.sizes[ j ] = ((j-diff) >= 0) ? t.sizes[ j-diff ] : 0;
3326
3327 t.num_sizes = i + 1;
3328 for ( i--; i >= 0; i-- )
3329 {
3330 if (t.dimensions[ i+1 ])
3331 t.sizes[ i ] = t.sizes[ i+1 ] / t.dimensions[ i+1 ];
3332 else
3333 t.sizes[ i ] = t.sizes[ i+1 ];
3334 }
3335 }
3336 }
3337
3338 /* Except for enumeration members & begin/ending of scopes, put the
3339 type word in the aux. symbol table. */
3340
3341 if (symbol_type == st_Block || symbol_type == st_End)
3342 indx = 0;
3343
3344 else if (inside_enumeration)
3345 indx = cur_file_ptr->void_type;
3346
3347 else
3348 {
3349 if (t.basic_type == bt_Struct
3350 || t.basic_type == bt_Union
3351 || t.basic_type == bt_Enum)
3352 {
3353 if (tag_start == (char *) 0)
3354 {
3355 error ("No tag specified for %.*s",
3356 name_end_p1 - name_start,
3357 name_start);
3358 return;
3359 }
3360
3361 t.tag_ptr = get_tag (tag_start, tag_end_p1, (symint_t)indexNil,
3362 t.basic_type);
3363 }
3364
3365 if (is_function)
3366 {
3367 last_func_type_info = t;
3368 last_func_eptr = eptr;
3369 return;
3370 }
3371
3372 indx = add_aux_sym_tir (&t,
3373 hash_yes,
3374 &cur_file_ptr->thash_head[0]);
3375 }
3376
3377
3378 /* If this is an external or static symbol, update the appropriate
3379 external symbol. */
3380
3381 if (eptr != (EXTR *) 0
3382 && (eptr->asym.index == indexNil || cur_proc_ptr == (PDR *) 0))
3383 {
3384 eptr->ifd = cur_file_ptr->file_index;
3385 eptr->asym.index = indx;
3386 }
3387
3388
3389 /* Do any last minute adjustments that are necessary. */
3390 switch (symbol_type)
3391 {
3392 default:
3393 break;
3394
3395
3396 /* For the beginning of structs, unions, and enumerations, the
3397 size info needs to be passed in the value field. */
3398
3399 case st_Block:
3400 if (t.num_sizes - t.num_dims - t.extra_sizes != 1)
3401 {
3402 error_line = __LINE__;
3403 saber_stop ();
3404 goto bomb_out;
3405 }
3406
3407 else
3408 value = t.sizes[0];
3409
3410 inside_enumeration = (t.orig_type == T_ENUM);
3411 break;
3412
3413
3414 /* For the end of structs, unions, and enumerations, omit the
3415 name which is always ".eos". This needs to be done last, so
3416 that any error reporting above gives the correct name. */
3417
3418 case st_End:
3419 name_start = name_end_p1 = (const char *) 0;
3420 value = inside_enumeration = 0;
3421 break;
3422
3423
3424 /* Members of structures and unions that aren't bitfields, need
3425 to adjust the value from a byte offset to a bit offset.
3426 Members of enumerations do not have the value adjusted, and
3427 can be distinguished by indx == indexNil. For enumerations,
3428 update the maximum enumeration value. */
3429
3430 case st_Member:
3431 if (!t.bitfield && !inside_enumeration)
3432 value *= 8;
3433
3434 break;
3435 }
3436
3437
3438 /* Add the symbol, except for global symbols outside of functions,
3439 for which the external symbol table is fine enough. */
3440
3441 if (eptr == (EXTR *) 0
3442 || eptr->asym.st == (int)st_Nil
3443 || cur_proc_ptr != (PDR *) 0)
3444 {
3445 symint_t isym = add_local_symbol (name_start, name_end_p1,
3446 symbol_type, storage_class,
3447 value,
3448 indx);
3449
3450 /* deal with struct, union, and enum tags. */
3451 if (symbol_type == st_Block)
3452 {
3453 /* Create or update the tag information. */
3454 tag_t *tag_ptr = get_tag (name_start,
3455 name_end_p1,
3456 isym,
3457 t.basic_type);
3458
3459 /* If there are any forward references, fill in the appropriate
3460 file and symbol indexes. */
3461
3462 symint_t file_index = cur_file_ptr->file_index;
3463 forward_t *f_next = tag_ptr->forward_ref;
3464 forward_t *f_cur;
3465
3466 while (f_next != (forward_t *) 0)
3467 {
3468 f_cur = f_next;
3469 f_next = f_next->next;
3470
3471 f_cur->ifd_ptr->isym = file_index;
3472 f_cur->index_ptr->rndx.index = isym;
3473
3474 free_forward (f_cur);
3475 }
3476
3477 tag_ptr->forward_ref = (forward_t *) 0;
3478 }
3479 }
3480
3481 /* Normal return */
3482 return;
3483
3484 /* Error return, issue message. */
3485 bomb_out:
3486 if (error_line)
3487 error ("compiler error, badly formed #.def (internal line # = %d)", error_line);
3488 else
3489 error ("compiler error, badly formed #.def");
3490
3491 return;
3492 }
3493
3494 \f
3495 /* Parse .end directives. */
3496
3497 STATIC void
3498 parse_end (start)
3499 const char *start; /* start of directive */
3500 {
3501 register const char *start_func, *end_func_p1;
3502 register int ch;
3503 register symint_t value;
3504 register FDR *orig_fdr;
3505
3506 if (cur_file_ptr == (efdr_t *) 0)
3507 {
3508 error (".end directive without a preceding .file directive");
3509 return;
3510 }
3511
3512 if (cur_proc_ptr == (PDR *) 0)
3513 {
3514 error (".end directive without a preceding .ent directive");
3515 return;
3516 }
3517
3518 /* Get the function name, skipping whitespace. */
3519 for (start_func = start; isspace (*start_func); start_func++)
3520 ;
3521
3522 ch = *start_func;
3523 if (!IS_ASM_IDENT (ch))
3524 {
3525 error (".end directive has no name");
3526 return;
3527 }
3528
3529 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3530 ;
3531
3532
3533 /* Get the value field for creating the end from the original object
3534 file (which we find by locating the procedure start, and using the
3535 pointer to the end+1 block and backing up. The index points to a
3536 two word aux. symbol, whose first word is the index of the end
3537 symbol, and the second word is the type of the function return
3538 value. */
3539
3540 orig_fdr = cur_file_ptr->orig_fdr;
3541 value = 0;
3542 if (orig_fdr != (FDR *)0 && cur_oproc_end != (SYMR *) 0)
3543 value = cur_oproc_end->value;
3544
3545 else
3546 error ("Cannot find .end block for %.*s", end_func_p1 - start_func, start_func);
3547
3548 (void) add_local_symbol (start_func, end_func_p1,
3549 st_End, sc_Text,
3550 value,
3551 (symint_t) 0);
3552
3553 cur_proc_ptr = cur_oproc_ptr = (PDR *) 0;
3554 }
3555
3556 \f
3557 /* Parse .ent directives. */
3558
3559 STATIC void
3560 parse_ent (start)
3561 const char *start; /* start of directive */
3562 {
3563 register const char *start_func, *end_func_p1;
3564 register int ch;
3565
3566 if (cur_file_ptr == (efdr_t *) 0)
3567 {
3568 error (".ent directive without a preceding .file directive");
3569 return;
3570 }
3571
3572 if (cur_proc_ptr != (PDR *) 0)
3573 {
3574 error ("second .ent directive found before .end directive");
3575 return;
3576 }
3577
3578 for (start_func = start; isspace (*start_func); start_func++)
3579 ;
3580
3581 ch = *start_func;
3582 if (!IS_ASM_IDENT (ch))
3583 {
3584 error (".ent directive has no name");
3585 return;
3586 }
3587
3588 for (end_func_p1 = start_func; IS_ASM_IDENT (ch); ch = *++end_func_p1)
3589 ;
3590
3591 (void) add_procedure (start_func, end_func_p1);
3592 }
3593
3594 \f
3595 /* Parse .file directives. */
3596
3597 STATIC void
3598 parse_file (start)
3599 const char *start; /* start of directive */
3600 {
3601 char *p;
3602 register char *start_name, *end_name_p1;
3603
3604 (void) strtol (start, &p, 0);
3605 if (start == p
3606 || (start_name = local_index (p, '"')) == (char *) 0
3607 || (end_name_p1 = local_rindex (++start_name, '"')) == (char *) 0)
3608 {
3609 error ("Invalid .file directive");
3610 return;
3611 }
3612
3613 if (cur_proc_ptr != (PDR *) 0)
3614 {
3615 error ("No way to handle .file within .ent/.end section");
3616 return;
3617 }
3618
3619 add_file (start_name, end_name_p1);
3620 }
3621
3622 \f
3623 /* Make sure the @stabs symbol is emitted. */
3624
3625 static void
3626 mark_stabs (start)
3627 const char *start; /* Start of directive (ignored) */
3628 {
3629 if (!stabs_seen)
3630 {
3631 /* Add a dummy @stabs symbol. */
3632 stabs_seen = 1;
3633 (void) add_local_symbol (stabs_symbol,
3634 stabs_symbol + sizeof (stabs_symbol),
3635 stNil, scInfo, -1, MIPS_MARK_STAB(0));
3636
3637 }
3638 }
3639
3640 \f
3641 /* Parse .stabs directives.
3642
3643 .stabs directives have five fields:
3644 "string" a string, encoding the type information.
3645 code a numeric code, defined in <stab.h>
3646 0 a zero
3647 0 a zero or line number
3648 value a numeric value or an address.
3649
3650 If the value is relocatable, we transform this into:
3651 iss points as an index into string space
3652 value value from lookup of the name
3653 st st from lookup of the name
3654 sc sc from lookup of the name
3655 index code|CODE_MASK
3656
3657 If the value is not relocatable, we transform this into:
3658 iss points as an index into string space
3659 value value
3660 st st_Nil
3661 sc sc_Nil
3662 index code|CODE_MASK
3663
3664 .stabn directives have four fields (string is null):
3665 code a numeric code, defined in <stab.h>
3666 0 a zero
3667 0 a zero or a line number
3668 value a numeric value or an address. */
3669
3670 STATIC void
3671 parse_stabs_common (string_start, string_end, rest)
3672 const char *string_start; /* start of string or NULL */
3673 const char *string_end; /* end+1 of string or NULL */
3674 const char *rest; /* rest of the directive. */
3675 {
3676 efdr_t *save_file_ptr = cur_file_ptr;
3677 symint_t code;
3678 symint_t value;
3679 char *p;
3680 st_t st;
3681 sc_t sc;
3682 int ch;
3683
3684 if (stabs_seen == 0)
3685 mark_stabs ("");
3686
3687 /* Read code from stabs. */
3688 if (!isdigit (*rest))
3689 {
3690 error ("Invalid .stabs/.stabn directive, code is non-numeric");
3691 return;
3692 }
3693
3694 code = strtol (rest, &p, 0);
3695
3696 /* Line number stabs are handled differently, since they have two values,
3697 the line number and the address of the label. We use the index field
3698 (aka code) to hold the line number, and the value field to hold the
3699 address. The symbol type is st_Label, which should be different from
3700 the other stabs, so that gdb can recognize it. */
3701
3702 if (code == (int)N_SLINE)
3703 {
3704 SYMR *sym_ptr, dummy_symr;
3705 shash_t *shash_ptr;
3706
3707 /* Skip ,0, */
3708 if (p[0] != ',' || p[1] != '0' || p[2] != ',' || !isdigit (p[3]))
3709 {
3710 error ("Invalid line number .stabs/.stabn directive");
3711 return;
3712 }
3713
3714 code = strtol (p+3, &p, 0);
3715 ch = *++p;
3716 if (p[-1] != ',' || isdigit (ch) || !IS_ASM_IDENT (ch))
3717 {
3718 error ("Invalid line number .stabs/.stabn directive");
3719 return;
3720 }
3721
3722 dummy_symr.index = code;
3723 if (dummy_symr.index != code)
3724 {
3725 error ("Line number (%d) for .stabs/.stabn directive cannot fit in index field (20 bits)",
3726 code);
3727
3728 return;
3729 }
3730
3731 shash_ptr = hash_string (p,
3732 strlen (p) - 1,
3733 &orig_str_hash[0],
3734 (symint_t *) 0);
3735
3736 if (shash_ptr == (shash_t *) 0
3737 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3738 {
3739 error ("Invalid .stabs/.stabn directive, value not found");
3740 return;
3741 }
3742
3743 if ((st_t) sym_ptr->st != st_Label)
3744 {
3745 error ("Invalid line number .stabs/.stabn directive");
3746 return;
3747 }
3748
3749 st = st_Label;
3750 sc = (sc_t) sym_ptr->sc;
3751 value = sym_ptr->value;
3752 }
3753 else
3754 {
3755 /* Skip ,<num>,<num>, */
3756 if (*p++ != ',')
3757 goto failure;
3758 for (; isdigit (*p); p++)
3759 ;
3760 if (*p++ != ',')
3761 goto failure;
3762 for (; isdigit (*p); p++)
3763 ;
3764 if (*p++ != ',')
3765 goto failure;
3766 ch = *p;
3767 if (!IS_ASM_IDENT (ch) && ch != '-')
3768 {
3769 failure:
3770 error ("Invalid .stabs/.stabn directive, bad character");
3771 return;
3772 }
3773
3774 if (isdigit (ch) || ch == '-')
3775 {
3776 st = st_Nil;
3777 sc = sc_Nil;
3778 value = strtol (p, &p, 0);
3779 if (*p != '\n')
3780 {
3781 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3782 return;
3783 }
3784 }
3785 else if (!IS_ASM_IDENT (ch))
3786 {
3787 error ("Invalid .stabs/.stabn directive, bad character");
3788 return;
3789 }
3790 else
3791 {
3792 SYMR *sym_ptr;
3793 shash_t *shash_ptr;
3794 const char *start, *end_p1;
3795
3796 start = p;
3797 if ((end_p1 = strchr (start, '+')) == (char *) 0)
3798 {
3799 if ((end_p1 = strchr (start, '-')) == (char *) 0)
3800 end_p1 = start + strlen(start) - 1;
3801 }
3802
3803 shash_ptr = hash_string (start,
3804 end_p1 - start,
3805 &orig_str_hash[0],
3806 (symint_t *) 0);
3807
3808 if (shash_ptr == (shash_t *) 0
3809 || (sym_ptr = shash_ptr->sym_ptr) == (SYMR *) 0)
3810 {
3811 shash_ptr = hash_string (start,
3812 end_p1 - start,
3813 &ext_str_hash[0],
3814 (symint_t *) 0);
3815
3816 if (shash_ptr == (shash_t *) 0
3817 || shash_ptr->esym_ptr == (EXTR *) 0)
3818 {
3819 error ("Invalid .stabs/.stabn directive, value not found");
3820 return;
3821 }
3822 else
3823 sym_ptr = &(shash_ptr->esym_ptr->asym);
3824 }
3825
3826 /* Traditionally, N_LBRAC and N_RBRAC are *not* relocated. */
3827 if (code == (int) N_LBRAC || code == (int) N_RBRAC)
3828 {
3829 sc = scNil;
3830 st = stNil;
3831 }
3832 else
3833 {
3834 sc = (sc_t) sym_ptr->sc;
3835 st = (st_t) sym_ptr->st;
3836 }
3837 value = sym_ptr->value;
3838
3839 ch = *end_p1++;
3840 if (ch != '\n')
3841 {
3842 if (((!isdigit (*end_p1)) && (*end_p1 != '-'))
3843 || ((ch != '+') && (ch != '-')))
3844 {
3845 error ("Invalid .stabs/.stabn directive, badly formed value");
3846 return;
3847 }
3848 if (ch == '+')
3849 value += strtol (end_p1, &p, 0);
3850 else if (ch == '-')
3851 value -= strtol (end_p1, &p, 0);
3852
3853 if (*p != '\n')
3854 {
3855 error ("Invalid .stabs/.stabn directive, stuff after numeric value");
3856 return;
3857 }
3858 }
3859 }
3860 code = MIPS_MARK_STAB(code);
3861 }
3862
3863 (void) add_local_symbol (string_start, string_end, st, sc, value, code);
3864 /* Restore normal file type. */
3865 cur_file_ptr = save_file_ptr;
3866 }
3867
3868
3869 STATIC void
3870 parse_stabs (start)
3871 const char *start; /* start of directive */
3872 {
3873 const char *end = local_index (start+1, '"');
3874
3875 if (*start != '"' || end == (const char *) 0 || end[1] != ',')
3876 {
3877 error ("Invalid .stabs directive, no string");
3878 return;
3879 }
3880
3881 parse_stabs_common (start+1, end, end+2);
3882 }
3883
3884
3885 STATIC void
3886 parse_stabn (start)
3887 const char *start; /* start of directive */
3888 {
3889 parse_stabs_common ((const char *) 0, (const char *) 0, start);
3890 }
3891
3892 \f
3893 /* Parse the input file, and write the lines to the output file
3894 if needed. */
3895
3896 STATIC void
3897 parse_input __proto((void))
3898 {
3899 register char *p;
3900 register int i;
3901 register thead_t *ptag_head;
3902 register tag_t *ptag;
3903 register tag_t *ptag_next;
3904
3905 if (debug)
3906 fprintf (stderr, "\tinput\n");
3907
3908 /* Add a dummy scope block around the entire compilation unit for
3909 structures defined outside of blocks. */
3910 ptag_head = allocate_thead ();
3911 ptag_head->first_tag = 0;
3912 ptag_head->prev = cur_tag_head;
3913 cur_tag_head = ptag_head;
3914
3915 while ((p = read_line ()) != (char *) 0)
3916 {
3917 /* Skip leading blanks */
3918 while (isspace (*p))
3919 p++;
3920
3921 /* See if it's a directive we handle. If so, dispatch handler. */
3922 for (i = 0; i < sizeof (pseudo_ops) / sizeof (pseudo_ops[0]); i++)
3923 if (memcmp (p, pseudo_ops[i].name, pseudo_ops[i].len) == 0
3924 && isspace (p[pseudo_ops[i].len]))
3925 {
3926 p += pseudo_ops[i].len; /* skip to first argument */
3927 while (isspace (*p))
3928 p++;
3929
3930 (*pseudo_ops[i].func)( p );
3931 break;
3932 }
3933 }
3934
3935 /* Process any tags at global level. */
3936 ptag_head = cur_tag_head;
3937 cur_tag_head = ptag_head->prev;
3938
3939 for (ptag = ptag_head->first_tag;
3940 ptag != (tag_t *) 0;
3941 ptag = ptag_next)
3942 {
3943 if (ptag->forward_ref != (forward_t *) 0)
3944 add_unknown_tag (ptag);
3945
3946 ptag_next = ptag->same_block;
3947 ptag->hash_ptr->tag_ptr = ptag->same_name;
3948 free_tag (ptag);
3949 }
3950
3951 free_thead (ptag_head);
3952
3953 }
3954
3955 \f
3956 /* Update the global headers with the final offsets in preparation
3957 to write out the .T file. */
3958
3959 STATIC void
3960 update_headers __proto((void))
3961 {
3962 register symint_t i;
3963 register efdr_t *file_ptr;
3964
3965 /* Set up the symbolic header. */
3966 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
3967 symbolic_header.magic = orig_sym_hdr.magic;
3968 symbolic_header.vstamp = orig_sym_hdr.vstamp;
3969
3970 /* Set up global counts. */
3971 symbolic_header.issExtMax = ext_strings.num_allocated;
3972 symbolic_header.idnMax = dense_num.num_allocated;
3973 symbolic_header.ifdMax = file_desc.num_allocated;
3974 symbolic_header.iextMax = ext_symbols.num_allocated;
3975 symbolic_header.ilineMax = orig_sym_hdr.ilineMax;
3976 symbolic_header.ioptMax = orig_sym_hdr.ioptMax;
3977 symbolic_header.cbLine = orig_sym_hdr.cbLine;
3978 symbolic_header.crfd = orig_sym_hdr.crfd;
3979
3980
3981 /* Loop through each file, figuring out how many local syms,
3982 line numbers, etc. there are. Also, put out end symbol
3983 for the filename. */
3984
3985 for (file_ptr = first_file;
3986 file_ptr != (efdr_t *) 0;
3987 file_ptr = file_ptr->next_file)
3988 {
3989 register SYMR *sym_start;
3990 register SYMR *sym;
3991 register SYMR *sym_end_p1;
3992 register FDR *fd_ptr = file_ptr->orig_fdr;
3993
3994 cur_file_ptr = file_ptr;
3995
3996 /* Copy st_Static symbols from the original local symbol table if
3997 they did not get added to the new local symbol table.
3998 This happens with stabs-in-ecoff or if the source file is
3999 compiled without debugging. */
4000 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4001 sym_end_p1 = sym_start + fd_ptr->csym;
4002 for (sym = sym_start; sym < sym_end_p1; sym++)
4003 {
4004 if ((st_t)sym->st == st_Static)
4005 {
4006 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4007 register Size_t len = strlen (str);
4008 register shash_t *hash_ptr;
4009
4010 /* Ignore internal labels. */
4011 if (str[0] == '$' && str[1] == 'L')
4012 continue;
4013 hash_ptr = hash_string (str,
4014 (Ptrdiff_t)len,
4015 &file_ptr->shash_head[0],
4016 (symint_t *) 0);
4017 if (hash_ptr == (shash_t *) 0)
4018 {
4019 (void) add_local_symbol (str, str + len,
4020 (st_t)sym->st, (sc_t)sym->sc,
4021 (symint_t)sym->value,
4022 (symint_t)indexNil);
4023 }
4024 }
4025 }
4026 (void) add_local_symbol ((const char *) 0, (const char *) 0,
4027 st_End, sc_Text,
4028 (symint_t) 0,
4029 (symint_t) 0);
4030
4031 file_ptr->fdr.cpd = file_ptr->procs.num_allocated;
4032 file_ptr->fdr.ipdFirst = symbolic_header.ipdMax;
4033 symbolic_header.ipdMax += file_ptr->fdr.cpd;
4034
4035 file_ptr->fdr.csym = file_ptr->symbols.num_allocated;
4036 file_ptr->fdr.isymBase = symbolic_header.isymMax;
4037 symbolic_header.isymMax += file_ptr->fdr.csym;
4038
4039 file_ptr->fdr.caux = file_ptr->aux_syms.num_allocated;
4040 file_ptr->fdr.iauxBase = symbolic_header.iauxMax;
4041 symbolic_header.iauxMax += file_ptr->fdr.caux;
4042
4043 file_ptr->fdr.cbSs = file_ptr->strings.num_allocated;
4044 file_ptr->fdr.issBase = symbolic_header.issMax;
4045 symbolic_header.issMax += file_ptr->fdr.cbSs;
4046 }
4047
4048 #ifndef ALIGN_SYMTABLE_OFFSET
4049 #define ALIGN_SYMTABLE_OFFSET(OFFSET) (OFFSET)
4050 #endif
4051
4052 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4053 i = WORD_ALIGN (symbolic_header.cbLine); /* line numbers */
4054 if (i > 0)
4055 {
4056 symbolic_header.cbLineOffset = file_offset;
4057 file_offset += i;
4058 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4059 }
4060
4061 i = symbolic_header.ioptMax; /* optimization symbols */
4062 if (((long) i) > 0)
4063 {
4064 symbolic_header.cbOptOffset = file_offset;
4065 file_offset += i * sizeof (OPTR);
4066 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4067 }
4068
4069 i = symbolic_header.idnMax; /* dense numbers */
4070 if (i > 0)
4071 {
4072 symbolic_header.cbDnOffset = file_offset;
4073 file_offset += i * sizeof (DNR);
4074 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4075 }
4076
4077 i = symbolic_header.ipdMax; /* procedure tables */
4078 if (i > 0)
4079 {
4080 symbolic_header.cbPdOffset = file_offset;
4081 file_offset += i * sizeof (PDR);
4082 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4083 }
4084
4085 i = symbolic_header.isymMax; /* local symbols */
4086 if (i > 0)
4087 {
4088 symbolic_header.cbSymOffset = file_offset;
4089 file_offset += i * sizeof (SYMR);
4090 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4091 }
4092
4093 i = symbolic_header.iauxMax; /* aux syms. */
4094 if (i > 0)
4095 {
4096 symbolic_header.cbAuxOffset = file_offset;
4097 file_offset += i * sizeof (TIR);
4098 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4099 }
4100
4101 i = WORD_ALIGN (symbolic_header.issMax); /* local strings */
4102 if (i > 0)
4103 {
4104 symbolic_header.cbSsOffset = file_offset;
4105 file_offset += i;
4106 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4107 }
4108
4109 i = WORD_ALIGN (symbolic_header.issExtMax); /* external strings */
4110 if (i > 0)
4111 {
4112 symbolic_header.cbSsExtOffset = file_offset;
4113 file_offset += i;
4114 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4115 }
4116
4117 i = symbolic_header.ifdMax; /* file tables */
4118 if (i > 0)
4119 {
4120 symbolic_header.cbFdOffset = file_offset;
4121 file_offset += i * sizeof (FDR);
4122 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4123 }
4124
4125 i = symbolic_header.crfd; /* relative file descriptors */
4126 if (i > 0)
4127 {
4128 symbolic_header.cbRfdOffset = file_offset;
4129 file_offset += i * sizeof (symint_t);
4130 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4131 }
4132
4133 i = symbolic_header.iextMax; /* external symbols */
4134 if (i > 0)
4135 {
4136 symbolic_header.cbExtOffset = file_offset;
4137 file_offset += i * sizeof (EXTR);
4138 file_offset = ALIGN_SYMTABLE_OFFSET (file_offset);
4139 }
4140 }
4141
4142 \f
4143 /* Write out a varray at a given location. */
4144
4145 STATIC void
4146 write_varray (vp, offset, str)
4147 varray_t *vp; /* virtual array */
4148 off_t offset; /* offset to write varray to */
4149 const char *str; /* string to print out when tracing */
4150 {
4151 int num_write, sys_write;
4152 vlinks_t *ptr;
4153
4154 if (vp->num_allocated == 0)
4155 return;
4156
4157 if (debug)
4158 fprintf (stderr, "\twarray\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4159 vp, offset, vp->num_allocated * vp->object_size, str);
4160
4161 if (file_offset != offset
4162 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4163 pfatal_with_name (object_name);
4164
4165 for (ptr = vp->first; ptr != (vlinks_t *) 0; ptr = ptr->next)
4166 {
4167 num_write = (ptr->next == (vlinks_t *) 0)
4168 ? vp->objects_last_page * vp->object_size
4169 : vp->objects_per_page * vp->object_size;
4170
4171 sys_write = fwrite ((PTR_T) ptr->datum, 1, num_write, object_stream);
4172 if (sys_write <= 0)
4173 pfatal_with_name (object_name);
4174
4175 else if (sys_write != num_write)
4176 fatal ("Wrote %d bytes to %s, system returned %d",
4177 num_write,
4178 object_name,
4179 sys_write);
4180
4181 file_offset += num_write;
4182 }
4183 }
4184
4185 \f
4186 /* Write out the symbol table in the object file. */
4187
4188 STATIC void
4189 write_object __proto((void))
4190 {
4191 int sys_write;
4192 efdr_t *file_ptr;
4193 off_t offset;
4194
4195 if (debug)
4196 fprintf (stderr, "\n\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4197 (PTR_T *) &symbolic_header, 0, sizeof (symbolic_header),
4198 "symbolic header");
4199
4200 sys_write = fwrite ((PTR_T) &symbolic_header,
4201 1,
4202 sizeof (symbolic_header),
4203 object_stream);
4204
4205 if (sys_write < 0)
4206 pfatal_with_name (object_name);
4207
4208 else if (sys_write != sizeof (symbolic_header))
4209 fatal ("Wrote %d bytes to %s, system returned %d",
4210 sizeof (symbolic_header),
4211 object_name,
4212 sys_write);
4213
4214
4215 file_offset = sizeof (symbolic_header) + orig_file_header.f_symptr;
4216
4217 if (symbolic_header.cbLine > 0) /* line numbers */
4218 {
4219 long sys_write;
4220
4221 if (file_offset != symbolic_header.cbLineOffset
4222 && fseek (object_stream, symbolic_header.cbLineOffset, SEEK_SET) != 0)
4223 pfatal_with_name (object_name);
4224
4225 if (debug)
4226 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4227 (PTR_T *) &orig_linenum, symbolic_header.cbLineOffset,
4228 symbolic_header.cbLine, "Line numbers");
4229
4230 sys_write = fwrite ((PTR_T) orig_linenum,
4231 1,
4232 symbolic_header.cbLine,
4233 object_stream);
4234
4235 if (sys_write <= 0)
4236 pfatal_with_name (object_name);
4237
4238 else if (sys_write != symbolic_header.cbLine)
4239 fatal ("Wrote %d bytes to %s, system returned %d",
4240 symbolic_header.cbLine,
4241 object_name,
4242 sys_write);
4243
4244 file_offset = symbolic_header.cbLineOffset + symbolic_header.cbLine;
4245 }
4246
4247 if (symbolic_header.ioptMax > 0) /* optimization symbols */
4248 {
4249 long sys_write;
4250 long num_write = symbolic_header.ioptMax * sizeof (OPTR);
4251
4252 if (file_offset != symbolic_header.cbOptOffset
4253 && fseek (object_stream, symbolic_header.cbOptOffset, SEEK_SET) != 0)
4254 pfatal_with_name (object_name);
4255
4256 if (debug)
4257 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4258 (PTR_T *) &orig_opt_syms, symbolic_header.cbOptOffset,
4259 num_write, "Optimizer symbols");
4260
4261 sys_write = fwrite ((PTR_T) orig_opt_syms,
4262 1,
4263 num_write,
4264 object_stream);
4265
4266 if (sys_write <= 0)
4267 pfatal_with_name (object_name);
4268
4269 else if (sys_write != num_write)
4270 fatal ("Wrote %d bytes to %s, system returned %d",
4271 num_write,
4272 object_name,
4273 sys_write);
4274
4275 file_offset = symbolic_header.cbOptOffset + num_write;
4276 }
4277
4278 if (symbolic_header.idnMax > 0) /* dense numbers */
4279 write_varray (&dense_num, (off_t)symbolic_header.cbDnOffset, "Dense numbers");
4280
4281 if (symbolic_header.ipdMax > 0) /* procedure tables */
4282 {
4283 offset = symbolic_header.cbPdOffset;
4284 for (file_ptr = first_file;
4285 file_ptr != (efdr_t *) 0;
4286 file_ptr = file_ptr->next_file)
4287 {
4288 write_varray (&file_ptr->procs, offset, "Procedure tables");
4289 offset = file_offset;
4290 }
4291 }
4292
4293 if (symbolic_header.isymMax > 0) /* local symbols */
4294 {
4295 offset = symbolic_header.cbSymOffset;
4296 for (file_ptr = first_file;
4297 file_ptr != (efdr_t *) 0;
4298 file_ptr = file_ptr->next_file)
4299 {
4300 write_varray (&file_ptr->symbols, offset, "Local symbols");
4301 offset = file_offset;
4302 }
4303 }
4304
4305 if (symbolic_header.iauxMax > 0) /* aux symbols */
4306 {
4307 offset = symbolic_header.cbAuxOffset;
4308 for (file_ptr = first_file;
4309 file_ptr != (efdr_t *) 0;
4310 file_ptr = file_ptr->next_file)
4311 {
4312 write_varray (&file_ptr->aux_syms, offset, "Aux. symbols");
4313 offset = file_offset;
4314 }
4315 }
4316
4317 if (symbolic_header.issMax > 0) /* local strings */
4318 {
4319 offset = symbolic_header.cbSsOffset;
4320 for (file_ptr = first_file;
4321 file_ptr != (efdr_t *) 0;
4322 file_ptr = file_ptr->next_file)
4323 {
4324 write_varray (&file_ptr->strings, offset, "Local strings");
4325 offset = file_offset;
4326 }
4327 }
4328
4329 if (symbolic_header.issExtMax > 0) /* external strings */
4330 write_varray (&ext_strings, symbolic_header.cbSsExtOffset, "External strings");
4331
4332 if (symbolic_header.ifdMax > 0) /* file tables */
4333 {
4334 offset = symbolic_header.cbFdOffset;
4335 if (file_offset != offset
4336 && fseek (object_stream, (long)offset, SEEK_SET) < 0)
4337 pfatal_with_name (object_name);
4338
4339 file_offset = offset;
4340 for (file_ptr = first_file;
4341 file_ptr != (efdr_t *) 0;
4342 file_ptr = file_ptr->next_file)
4343 {
4344 if (debug)
4345 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4346 (PTR_T *) &file_ptr->fdr, file_offset, sizeof (FDR), "File header");
4347
4348 sys_write = fwrite (&file_ptr->fdr,
4349 1,
4350 sizeof (FDR),
4351 object_stream);
4352
4353 if (sys_write < 0)
4354 pfatal_with_name (object_name);
4355
4356 else if (sys_write != sizeof (FDR))
4357 fatal ("Wrote %d bytes to %s, system returned %d",
4358 sizeof (FDR),
4359 object_name,
4360 sys_write);
4361
4362 file_offset = offset += sizeof (FDR);
4363 }
4364 }
4365
4366 if (symbolic_header.crfd > 0) /* relative file descriptors */
4367 {
4368 long sys_write;
4369 symint_t num_write = symbolic_header.crfd * sizeof (symint_t);
4370
4371 if (file_offset != symbolic_header.cbRfdOffset
4372 && fseek (object_stream, symbolic_header.cbRfdOffset, SEEK_SET) != 0)
4373 pfatal_with_name (object_name);
4374
4375 if (debug)
4376 fprintf (stderr, "\twrite\tvp = 0x%.8x, offset = %7u, size = %7u, %s\n",
4377 (PTR_T *) &orig_rfds, symbolic_header.cbRfdOffset,
4378 num_write, "Relative file descriptors");
4379
4380 sys_write = fwrite (orig_rfds,
4381 1,
4382 num_write,
4383 object_stream);
4384
4385 if (sys_write <= 0)
4386 pfatal_with_name (object_name);
4387
4388 else if (sys_write != num_write)
4389 fatal ("Wrote %d bytes to %s, system returned %d",
4390 num_write,
4391 object_name,
4392 sys_write);
4393
4394 file_offset = symbolic_header.cbRfdOffset + num_write;
4395 }
4396
4397 if (symbolic_header.issExtMax > 0) /* external symbols */
4398 write_varray (&ext_symbols, (off_t)symbolic_header.cbExtOffset, "External symbols");
4399
4400 if (fclose (object_stream) != 0)
4401 pfatal_with_name (object_name);
4402 }
4403
4404 \f
4405 /* Read some bytes at a specified location, and return a pointer. */
4406
4407 STATIC page_t *
4408 read_seek (size, offset, str)
4409 Size_t size; /* # bytes to read */
4410 off_t offset; /* offset to read at */
4411 const char *str; /* name for tracing */
4412 {
4413 page_t *ptr;
4414 long sys_read = 0;
4415
4416 if (size == 0) /* nothing to read */
4417 return (page_t *) 0;
4418
4419 if (debug)
4420 fprintf (stderr, "\trseek\tsize = %7u, offset = %7u, currently at %7u, %s\n",
4421 size, offset, file_offset, str);
4422
4423 #ifndef MALLOC_CHECK
4424 ptr = allocate_multiple_pages ((size + PAGE_USIZE - 1) / PAGE_USIZE);
4425 #else
4426 ptr = (page_t *) xcalloc (1, size);
4427 #endif
4428
4429 /* If we need to seek, and the distance is nearby, just do some reads,
4430 to speed things up. */
4431 if (file_offset != offset)
4432 {
4433 symint_t difference = offset - file_offset;
4434
4435 if (difference < 8)
4436 {
4437 char small_buffer[8];
4438
4439 sys_read = fread (small_buffer, 1, difference, obj_in_stream);
4440 if (sys_read <= 0)
4441 pfatal_with_name (obj_in_name);
4442
4443 if (sys_read != difference)
4444 fatal ("Wanted to read %d bytes from %s, system returned %d",
4445 size,
4446 obj_in_name,
4447 sys_read);
4448 }
4449 else if (fseek (obj_in_stream, offset, SEEK_SET) < 0)
4450 pfatal_with_name (obj_in_name);
4451 }
4452
4453 sys_read = fread ((PTR_T)ptr, 1, size, obj_in_stream);
4454 if (sys_read <= 0)
4455 pfatal_with_name (obj_in_name);
4456
4457 if (sys_read != size)
4458 fatal ("Wanted to read %d bytes from %s, system returned %d",
4459 size,
4460 obj_in_name,
4461 sys_read);
4462
4463 file_offset = offset + size;
4464
4465 if (file_offset > max_file_offset)
4466 max_file_offset = file_offset;
4467
4468 return ptr;
4469 }
4470
4471 \f
4472 /* Read the existing object file (and copy to the output object file
4473 if it is different from the input object file), and remove the old
4474 symbol table. */
4475
4476 STATIC void
4477 copy_object __proto((void))
4478 {
4479 char buffer[ PAGE_SIZE ];
4480 register int sys_read;
4481 register int remaining;
4482 register int num_write;
4483 register int sys_write;
4484 register int fd, es;
4485 register int delete_ifd = 0;
4486 register int *remap_file_number;
4487 struct stat stat_buf;
4488
4489 if (debug)
4490 fprintf (stderr, "\tcopy\n");
4491
4492 if (fstat (fileno (obj_in_stream), &stat_buf) != 0
4493 || fseek (obj_in_stream, 0L, SEEK_SET) != 0)
4494 pfatal_with_name (obj_in_name);
4495
4496 sys_read = fread ((PTR_T) &orig_file_header,
4497 1,
4498 sizeof (struct filehdr),
4499 obj_in_stream);
4500
4501 if (sys_read < 0)
4502 pfatal_with_name (obj_in_name);
4503
4504 else if (sys_read == 0 && feof (obj_in_stream))
4505 return; /* create a .T file sans file header */
4506
4507 else if (sys_read < sizeof (struct filehdr))
4508 fatal ("Wanted to read %d bytes from %s, system returned %d",
4509 sizeof (struct filehdr),
4510 obj_in_name,
4511 sys_read);
4512
4513
4514 if (orig_file_header.f_nsyms != sizeof (HDRR))
4515 fatal ("%s symbolic header wrong size (%d bytes, should be %d)",
4516 input_name, orig_file_header.f_nsyms, sizeof (HDRR));
4517
4518
4519 /* Read in the current symbolic header. */
4520 if (fseek (obj_in_stream, (long) orig_file_header.f_symptr, SEEK_SET) != 0)
4521 pfatal_with_name (input_name);
4522
4523 sys_read = fread ((PTR_T) &orig_sym_hdr,
4524 1,
4525 sizeof (orig_sym_hdr),
4526 obj_in_stream);
4527
4528 if (sys_read < 0)
4529 pfatal_with_name (object_name);
4530
4531 else if (sys_read < sizeof (struct filehdr))
4532 fatal ("Wanted to read %d bytes from %s, system returned %d",
4533 sizeof (struct filehdr),
4534 obj_in_name,
4535 sys_read);
4536
4537
4538 /* Read in each of the sections if they exist in the object file.
4539 We read things in in the order the mips assembler creates the
4540 sections, so in theory no extra seeks are done.
4541
4542 For simplicity sake, round each read up to a page boundary,
4543 we may want to revisit this later.... */
4544
4545 file_offset = orig_file_header.f_symptr + sizeof (struct filehdr);
4546
4547 if (orig_sym_hdr.cbLine > 0) /* line numbers */
4548 orig_linenum = (char *) read_seek ((Size_t)orig_sym_hdr.cbLine,
4549 orig_sym_hdr.cbLineOffset,
4550 "Line numbers");
4551
4552 if (orig_sym_hdr.ipdMax > 0) /* procedure tables */
4553 orig_procs = (PDR *) read_seek ((Size_t)orig_sym_hdr.ipdMax * sizeof (PDR),
4554 orig_sym_hdr.cbPdOffset,
4555 "Procedure tables");
4556
4557 if (orig_sym_hdr.isymMax > 0) /* local symbols */
4558 orig_local_syms = (SYMR *) read_seek ((Size_t)orig_sym_hdr.isymMax * sizeof (SYMR),
4559 orig_sym_hdr.cbSymOffset,
4560 "Local symbols");
4561
4562 if (orig_sym_hdr.iauxMax > 0) /* aux symbols */
4563 orig_aux_syms = (AUXU *) read_seek ((Size_t)orig_sym_hdr.iauxMax * sizeof (AUXU),
4564 orig_sym_hdr.cbAuxOffset,
4565 "Aux. symbols");
4566
4567 if (orig_sym_hdr.issMax > 0) /* local strings */
4568 orig_local_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issMax,
4569 orig_sym_hdr.cbSsOffset,
4570 "Local strings");
4571
4572 if (orig_sym_hdr.issExtMax > 0) /* external strings */
4573 orig_ext_strs = (char *) read_seek ((Size_t)orig_sym_hdr.issExtMax,
4574 orig_sym_hdr.cbSsExtOffset,
4575 "External strings");
4576
4577 if (orig_sym_hdr.ifdMax > 0) /* file tables */
4578 orig_files = (FDR *) read_seek ((Size_t)orig_sym_hdr.ifdMax * sizeof (FDR),
4579 orig_sym_hdr.cbFdOffset,
4580 "File tables");
4581
4582 if (orig_sym_hdr.crfd > 0) /* relative file descriptors */
4583 orig_rfds = (symint_t *) read_seek ((Size_t)orig_sym_hdr.crfd * sizeof (symint_t),
4584 orig_sym_hdr.cbRfdOffset,
4585 "Relative file descriptors");
4586
4587 if (orig_sym_hdr.issExtMax > 0) /* external symbols */
4588 orig_ext_syms = (EXTR *) read_seek ((Size_t)orig_sym_hdr.iextMax * sizeof (EXTR),
4589 orig_sym_hdr.cbExtOffset,
4590 "External symbols");
4591
4592 if (orig_sym_hdr.idnMax > 0) /* dense numbers */
4593 {
4594 orig_dense = (DNR *) read_seek ((Size_t)orig_sym_hdr.idnMax * sizeof (DNR),
4595 orig_sym_hdr.cbDnOffset,
4596 "Dense numbers");
4597
4598 add_bytes (&dense_num, (char *) orig_dense, (Size_t)orig_sym_hdr.idnMax);
4599 }
4600
4601 if (orig_sym_hdr.ioptMax > 0) /* opt symbols */
4602 orig_opt_syms = (OPTR *) read_seek ((Size_t)orig_sym_hdr.ioptMax * sizeof (OPTR),
4603 orig_sym_hdr.cbOptOffset,
4604 "Optimizer symbols");
4605
4606
4607
4608 /* Abort if the symbol table is not last. */
4609 if (max_file_offset != stat_buf.st_size)
4610 fatal ("Symbol table is not last (symbol table ends at %ld, .o ends at %ld",
4611 max_file_offset,
4612 stat_buf.st_size);
4613
4614
4615 /* If the first original file descriptor is a dummy which the assembler
4616 put out, but there are no symbols in it, skip it now. */
4617 if (orig_sym_hdr.ifdMax > 1
4618 && orig_files->csym == 2
4619 && orig_files->caux == 0)
4620 {
4621 char *filename = orig_local_strs + (orig_files->issBase + orig_files->rss);
4622 char *suffix = local_rindex (filename, '.');
4623
4624 if (suffix != (char *) 0 && strcmp (suffix, ".s") == 0)
4625 delete_ifd = 1;
4626 }
4627
4628
4629 /* Create array to map original file numbers to the new file numbers
4630 (in case there are duplicate filenames, we collapse them into one
4631 file section, the MIPS assembler may or may not collapse them). */
4632
4633 remap_file_number = (int *) alloca (sizeof (int) * orig_sym_hdr.ifdMax);
4634
4635 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4636 {
4637 register FDR *fd_ptr = ORIG_FILES (fd);
4638 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4639
4640 /* file support itself. */
4641 add_file (filename, filename + strlen (filename));
4642 remap_file_number[fd] = cur_file_ptr->file_index;
4643 }
4644
4645 if (delete_ifd > 0) /* just in case */
4646 remap_file_number[0] = remap_file_number[1];
4647
4648
4649 /* Loop, adding each of the external symbols. These must be in
4650 order or otherwise we would have to change the relocation
4651 entries. We don't just call add_bytes, because we need to have
4652 the names put into the external hash table. We set the type to
4653 'void' for now, and parse_def will fill in the correct type if it
4654 is in the symbol table. We must add the external symbols before
4655 the locals, since the locals do lookups against the externals. */
4656
4657 if (debug)
4658 fprintf (stderr, "\tehash\n");
4659
4660 for (es = 0; es < orig_sym_hdr.iextMax; es++)
4661 {
4662 register EXTR *eptr = orig_ext_syms + es;
4663 register char *ename = ORIG_ESTRS (eptr->asym.iss);
4664 register unsigned ifd = eptr->ifd;
4665
4666 (void) add_ext_symbol (ename,
4667 ename + strlen (ename),
4668 (st_t) eptr->asym.st,
4669 (sc_t) eptr->asym.sc,
4670 eptr->asym.value,
4671 (symint_t) ((eptr->asym.index == indexNil) ? indexNil : 0),
4672 (ifd < orig_sym_hdr.ifdMax) ? remap_file_number[ ifd ] : ifd);
4673 }
4674
4675
4676 /* For each of the files in the object file, copy the symbols, and such
4677 into the varrays for the new object file. */
4678
4679 for (fd = delete_ifd; fd < orig_sym_hdr.ifdMax; fd++)
4680 {
4681 register FDR *fd_ptr = ORIG_FILES (fd);
4682 register char *filename = ORIG_LSTRS (fd_ptr->issBase + fd_ptr->rss);
4683 register SYMR *sym_start;
4684 register SYMR *sym;
4685 register SYMR *sym_end_p1;
4686 register PDR *proc_start;
4687 register PDR *proc;
4688 register PDR *proc_end_p1;
4689
4690 /* file support itself. */
4691 add_file (filename, filename + strlen (filename));
4692 cur_file_ptr->orig_fdr = fd_ptr;
4693
4694 /* Copy stuff that's just passed through (such as line #'s) */
4695 cur_file_ptr->fdr.adr = fd_ptr->adr;
4696 cur_file_ptr->fdr.ilineBase = fd_ptr->ilineBase;
4697 cur_file_ptr->fdr.cline = fd_ptr->cline;
4698 cur_file_ptr->fdr.rfdBase = fd_ptr->rfdBase;
4699 cur_file_ptr->fdr.crfd = fd_ptr->crfd;
4700 cur_file_ptr->fdr.cbLineOffset = fd_ptr->cbLineOffset;
4701 cur_file_ptr->fdr.cbLine = fd_ptr->cbLine;
4702 cur_file_ptr->fdr.fMerge = fd_ptr->fMerge;
4703 cur_file_ptr->fdr.fReadin = fd_ptr->fReadin;
4704 cur_file_ptr->fdr.glevel = fd_ptr->glevel;
4705
4706 if (debug)
4707 fprintf (stderr, "\thash\tstart, filename %s\n", filename);
4708
4709 /* For each of the static and global symbols defined, add them
4710 to the hash table of original symbols, so we can look up
4711 their values. */
4712
4713 sym_start = ORIG_LSYMS (fd_ptr->isymBase);
4714 sym_end_p1 = sym_start + fd_ptr->csym;
4715 for (sym = sym_start; sym < sym_end_p1; sym++)
4716 {
4717 switch ((st_t) sym->st)
4718 {
4719 default:
4720 break;
4721
4722 case st_Global:
4723 case st_Static:
4724 case st_Label:
4725 case st_Proc:
4726 case st_StaticProc:
4727 {
4728 auto symint_t hash_index;
4729 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4730 register Size_t len = strlen (str);
4731 register shash_t *shash_ptr = hash_string (str,
4732 (Ptrdiff_t)len,
4733 &orig_str_hash[0],
4734 &hash_index);
4735
4736 if (shash_ptr != (shash_t *) 0)
4737 error ("internal error, %s is already in original symbol table", str);
4738
4739 else
4740 {
4741 shash_ptr = allocate_shash ();
4742 shash_ptr->next = orig_str_hash[hash_index];
4743 orig_str_hash[hash_index] = shash_ptr;
4744
4745 shash_ptr->len = len;
4746 shash_ptr->indx = indexNil;
4747 shash_ptr->string = str;
4748 shash_ptr->sym_ptr = sym;
4749 }
4750 }
4751 break;
4752
4753 case st_End:
4754 if ((sc_t) sym->sc == sc_Text)
4755 {
4756 register char *str = ORIG_LSTRS (fd_ptr->issBase + sym->iss);
4757
4758 if (*str != '\0')
4759 {
4760 register Size_t len = strlen (str);
4761 register shash_t *shash_ptr = hash_string (str,
4762 (Ptrdiff_t)len,
4763 &orig_str_hash[0],
4764 (symint_t *) 0);
4765
4766 if (shash_ptr != (shash_t *) 0)
4767 shash_ptr->end_ptr = sym;
4768 }
4769 }
4770 break;
4771
4772 }
4773 }
4774
4775 if (debug)
4776 {
4777 fprintf (stderr, "\thash\tdone, filename %s\n", filename);
4778 fprintf (stderr, "\tproc\tstart, filename %s\n", filename);
4779 }
4780
4781 /* Go through each of the procedures in this file, and add the
4782 procedure pointer to the hash entry for the given name. */
4783
4784 proc_start = ORIG_PROCS (fd_ptr->ipdFirst);
4785 proc_end_p1 = proc_start + fd_ptr->cpd;
4786 for (proc = proc_start; proc < proc_end_p1; proc++)
4787 {
4788 register SYMR *proc_sym = ORIG_LSYMS (fd_ptr->isymBase + proc->isym);
4789 register char *str = ORIG_LSTRS (fd_ptr->issBase + proc_sym->iss);
4790 register Size_t len = strlen (str);
4791 register shash_t *shash_ptr = hash_string (str,
4792 (Ptrdiff_t)len,
4793 &orig_str_hash[0],
4794 (symint_t *) 0);
4795
4796 if (shash_ptr == (shash_t *) 0)
4797 error ("internal error, function %s is not in original symbol table", str);
4798
4799 else
4800 shash_ptr->proc_ptr = proc;
4801 }
4802
4803 if (debug)
4804 fprintf (stderr, "\tproc\tdone, filename %s\n", filename);
4805
4806 }
4807 cur_file_ptr = first_file;
4808
4809
4810 /* Copy all of the object file up to the symbol table. Originally
4811 we were going to use ftruncate, but that doesn't seem to work
4812 on Ultrix 3.1.... */
4813
4814 if (fseek (obj_in_stream, (long) 0, SEEK_SET) != 0)
4815 pfatal_with_name (obj_in_name);
4816
4817 if (fseek (object_stream, (long) 0, SEEK_SET) != 0)
4818 pfatal_with_name (object_name);
4819
4820 for (remaining = orig_file_header.f_symptr;
4821 remaining > 0;
4822 remaining -= num_write)
4823 {
4824 num_write = (remaining <= sizeof (buffer)) ? remaining : sizeof (buffer);
4825 sys_read = fread ((PTR_T) buffer, 1, num_write, obj_in_stream);
4826 if (sys_read <= 0)
4827 pfatal_with_name (obj_in_name);
4828
4829 else if (sys_read != num_write)
4830 fatal ("Wanted to read %d bytes from %s, system returned %d",
4831 num_write,
4832 obj_in_name,
4833 sys_read);
4834
4835 sys_write = fwrite (buffer, 1, num_write, object_stream);
4836 if (sys_write <= 0)
4837 pfatal_with_name (object_name);
4838
4839 else if (sys_write != num_write)
4840 fatal ("Wrote %d bytes to %s, system returned %d",
4841 num_write,
4842 object_name,
4843 sys_write);
4844 }
4845 }
4846
4847 \f
4848 /* Ye olde main program. */
4849
4850 int
4851 main (argc, argv)
4852 int argc;
4853 char *argv[];
4854 {
4855 int iflag = 0;
4856 char *p = local_rindex (argv[0], '/');
4857 char *num_end;
4858 int option;
4859 int i;
4860
4861 progname = (p != 0) ? p+1 : argv[0];
4862
4863 (void) signal (SIGSEGV, catch_signal);
4864 (void) signal (SIGBUS, catch_signal);
4865 (void) signal (SIGABRT, catch_signal);
4866
4867 #if !defined(__SABER__) && !defined(lint)
4868 if (sizeof (efdr_t) > PAGE_USIZE)
4869 fatal ("Efdr_t has a sizeof %d bytes, when it should be less than %d",
4870 sizeof (efdr_t),
4871 PAGE_USIZE);
4872
4873 if (sizeof (page_t) != PAGE_USIZE)
4874 fatal ("Page_t has a sizeof %d bytes, when it should be %d",
4875 sizeof (page_t),
4876 PAGE_USIZE);
4877
4878 #endif
4879
4880 alloc_counts[ alloc_type_none ].alloc_name = "none";
4881 alloc_counts[ alloc_type_scope ].alloc_name = "scope";
4882 alloc_counts[ alloc_type_vlinks ].alloc_name = "vlinks";
4883 alloc_counts[ alloc_type_shash ].alloc_name = "shash";
4884 alloc_counts[ alloc_type_thash ].alloc_name = "thash";
4885 alloc_counts[ alloc_type_tag ].alloc_name = "tag";
4886 alloc_counts[ alloc_type_forward ].alloc_name = "forward";
4887 alloc_counts[ alloc_type_thead ].alloc_name = "thead";
4888 alloc_counts[ alloc_type_varray ].alloc_name = "varray";
4889
4890 int_type_info = type_info_init;
4891 int_type_info.basic_type = bt_Int;
4892
4893 void_type_info = type_info_init;
4894 void_type_info.basic_type = bt_Void;
4895
4896 while ((option = getopt (argc, argv, "d:i:I:o:v")) != EOF)
4897 switch (option)
4898 {
4899 default:
4900 had_errors++;
4901 break;
4902
4903 case 'd':
4904 debug = strtol (optarg, &num_end, 0);
4905 if ((unsigned)debug > 4 || num_end == optarg)
4906 had_errors++;
4907
4908 break;
4909
4910 case 'I':
4911 if (rename_output || obj_in_name != (char *) 0)
4912 had_errors++;
4913 else
4914 rename_output = 1;
4915
4916 /* fall through to 'i' case. */
4917
4918 case 'i':
4919 if (obj_in_name == (char *) 0)
4920 {
4921 obj_in_name = optarg;
4922 iflag++;
4923 }
4924 else
4925 had_errors++;
4926 break;
4927
4928 case 'o':
4929 if (object_name == (char *) 0)
4930 object_name = optarg;
4931 else
4932 had_errors++;
4933 break;
4934
4935 case 'v':
4936 version++;
4937 break;
4938 }
4939
4940 if (obj_in_name == (char *) 0 && optind <= argc - 2)
4941 obj_in_name = argv[--argc];
4942
4943 if (object_name == (char *) 0 && optind <= argc - 2)
4944 object_name = argv[--argc];
4945
4946 /* If there is an output name, but no input name use
4947 the same file for both, deleting the name between
4948 opening it for input and opening it for output. */
4949 if (obj_in_name == (char *) 0 && object_name != (char *)0)
4950 {
4951 obj_in_name = object_name;
4952 delete_input = 1;
4953 }
4954
4955 if (object_name == (char *) 0 || had_errors || optind != argc - 1)
4956 {
4957 fprintf (stderr, "Calling Sequence:\n");
4958 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-i <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4959 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] [-I <o-in-file>] -o <o-out-file> <s-file> (or)\n");
4960 fprintf (stderr, "\tmips-tfile [-d <num>] [-v] <s-file> <o-in-file> <o-out-file>\n");
4961 fprintf (stderr, "\n");
4962 fprintf (stderr, "Debug levels are:\n");
4963 fprintf (stderr, " 1\tGeneral debug + trace functions/blocks.\n");
4964 fprintf (stderr, " 2\tDebug level 1 + trace externals.\n");
4965 fprintf (stderr, " 3\tDebug level 2 + trace all symbols.\n");
4966 fprintf (stderr, " 4\tDebug level 3 + trace memory allocations.\n");
4967 return 1;
4968 }
4969
4970
4971 if (version)
4972 {
4973 fprintf (stderr, "mips-tfile version %s", version_string);
4974 #ifdef TARGET_VERSION
4975 TARGET_VERSION;
4976 #endif
4977 fputc ('\n', stderr);
4978 }
4979
4980 if (obj_in_name == (char *) 0)
4981 obj_in_name = object_name;
4982
4983 if (rename_output && rename (object_name, obj_in_name) != 0)
4984 {
4985 char *buffer = (char *) allocate_multiple_pages (4);
4986 int len;
4987 int len2;
4988 int in_fd;
4989 int out_fd;
4990
4991 /* Rename failed, copy input file */
4992 in_fd = open (object_name, O_RDONLY, 0666);
4993 if (in_fd < 0)
4994 pfatal_with_name (object_name);
4995
4996 out_fd = open (obj_in_name, O_WRONLY | O_CREAT | O_TRUNC, 0666);
4997 if (out_fd < 0)
4998 pfatal_with_name (obj_in_name);
4999
5000 while ((len = read (in_fd, buffer, 4*PAGE_SIZE)) > 0)
5001 {
5002 len2 = write (out_fd, buffer, len);
5003 if (len2 < 0)
5004 pfatal_with_name (object_name);
5005
5006 if (len != len2)
5007 fatal ("wrote %d bytes to %s, expected to write %d", len2, obj_in_name, len);
5008 }
5009
5010 free_multiple_pages ((page_t *)buffer, 4);
5011
5012 if (len < 0)
5013 pfatal_with_name (object_name);
5014
5015 if (close (in_fd) < 0)
5016 pfatal_with_name (object_name);
5017
5018 if (close (out_fd) < 0)
5019 pfatal_with_name (obj_in_name);
5020 }
5021
5022 /* Must open input before output, since the output may be the same file, and
5023 we need to get the input handle before truncating it. */
5024 obj_in_stream = fopen (obj_in_name, "r");
5025 if (obj_in_stream == (FILE *) 0)
5026 pfatal_with_name (obj_in_name);
5027
5028 if (delete_input && unlink (obj_in_name) != 0)
5029 pfatal_with_name (obj_in_name);
5030
5031 object_stream = fopen (object_name, "w");
5032 if (object_stream == (FILE *) 0)
5033 pfatal_with_name (object_name);
5034
5035 if (strcmp (argv[optind], "-") != 0)
5036 {
5037 input_name = argv[optind];
5038 if (freopen (argv[optind], "r", stdin) != stdin)
5039 pfatal_with_name (argv[optind]);
5040 }
5041
5042 copy_object (); /* scan & copy object file */
5043 parse_input (); /* scan all of input */
5044
5045 update_headers (); /* write out tfile */
5046 write_object ();
5047
5048 if (debug)
5049 {
5050 fprintf (stderr, "\n\tAllocation summary:\n\n");
5051 for (i = (int)alloc_type_none; i < (int)alloc_type_last; i++)
5052 if (alloc_counts[i].total_alloc)
5053 {
5054 fprintf (stderr,
5055 "\t%s\t%5d allocation(s), %5d free(s), %2d page(s)\n",
5056 alloc_counts[i].alloc_name,
5057 alloc_counts[i].total_alloc,
5058 alloc_counts[i].total_free,
5059 alloc_counts[i].total_pages);
5060 }
5061 }
5062
5063 return (had_errors) ? 1 : 0;
5064 }
5065
5066 \f
5067 /* Catch a signal and exit without dumping core. */
5068
5069 STATIC void
5070 catch_signal (signum)
5071 int signum;
5072 {
5073 (void) signal (signum, SIG_DFL); /* just in case... */
5074 #ifdef NO_SYS_SIGLIST
5075 fatal ("caught signal");
5076 #else
5077 fatal (sys_siglist[signum]);
5078 #endif
5079 }
5080
5081 /* Print a fatal error message. NAME is the text.
5082 Also include a system error message based on `errno'. */
5083
5084 void
5085 pfatal_with_name (msg)
5086 char *msg;
5087 {
5088 int save_errno = errno; /* just in case.... */
5089 if (line_number > 0)
5090 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5091 else
5092 fprintf (stderr, "%s:", progname);
5093
5094 errno = save_errno;
5095 if (errno == 0)
5096 fprintf (stderr, "[errno = 0] %s\n", msg);
5097 else
5098 perror (msg);
5099
5100 exit (1);
5101 }
5102
5103 \f
5104 /* Procedure to abort with an out of bounds error message. It has
5105 type int, so it can be used with an ?: expression within the
5106 ORIG_xxx macros, but the function never returns. */
5107
5108 static int
5109 out_of_bounds (indx, max, str, prog_line)
5110 symint_t indx; /* index that is out of bounds */
5111 symint_t max; /* maximum index */
5112 const char *str; /* string to print out */
5113 int prog_line; /* line number within mips-tfile.c */
5114 {
5115 if (indx < max) /* just in case */
5116 return 0;
5117
5118 fprintf (stderr, "%s, %s:%ld index %u is out of bounds for %s, max is %u, mips-tfile.c line# %d\n",
5119 progname, input_name, line_number, indx, str, max, prog_line);
5120
5121 exit (1);
5122 return 0; /* turn off warning messages */
5123 }
5124
5125 \f
5126 /* Allocate a cluster of pages. USE_MALLOC says that malloc does not
5127 like sbrk's behind its back (or sbrk isn't available). If we use
5128 sbrk, we assume it gives us zeroed pages. */
5129
5130 #ifndef MALLOC_CHECK
5131 #ifdef USE_MALLOC
5132
5133 STATIC page_t *
5134 allocate_cluster (npages)
5135 Size_t npages;
5136 {
5137 register page_t *value = (page_t *) calloc (npages, PAGE_USIZE);
5138
5139 if (value == 0)
5140 fatal ("Virtual memory exhausted.");
5141
5142 if (debug > 3)
5143 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, value);
5144
5145 return value;
5146 }
5147
5148 #else /* USE_MALLOC */
5149
5150 STATIC page_t *
5151 allocate_cluster (npages)
5152 Size_t npages;
5153 {
5154 register page_t *ptr = (page_t *) sbrk (0); /* current sbreak */
5155 unsigned long offset = ((unsigned long) ptr) & (PAGE_SIZE - 1);
5156
5157 if (offset != 0) /* align to a page boundary */
5158 {
5159 if (sbrk (PAGE_USIZE - offset) == (char *)-1)
5160 pfatal_with_name ("allocate_cluster");
5161
5162 ptr = (page_t *) (((char *)ptr) + PAGE_SIZE - offset);
5163 }
5164
5165 if (sbrk (npages * PAGE_USIZE) == (char *)-1)
5166 pfatal_with_name ("allocate_cluster");
5167
5168 if (debug > 3)
5169 fprintf (stderr, "\talloc\tnpages = %d, value = 0x%.8x\n", npages, ptr);
5170
5171 return ptr;
5172 }
5173
5174 #endif /* USE_MALLOC */
5175
5176
5177 static page_t *cluster_ptr = NULL;
5178 static unsigned pages_left = 0;
5179
5180 #endif /* MALLOC_CHECK */
5181
5182
5183 /* Allocate some pages (which is initialized to 0). */
5184
5185 STATIC page_t *
5186 allocate_multiple_pages (npages)
5187 Size_t npages;
5188 {
5189 #ifndef MALLOC_CHECK
5190 if (pages_left == 0 && npages < MAX_CLUSTER_PAGES)
5191 {
5192 pages_left = MAX_CLUSTER_PAGES;
5193 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5194 }
5195
5196 if (npages <= pages_left)
5197 {
5198 page_t *ptr = cluster_ptr;
5199 cluster_ptr += npages;
5200 pages_left -= npages;
5201 return ptr;
5202 }
5203
5204 return allocate_cluster (npages);
5205
5206 #else /* MALLOC_CHECK */
5207 return (page_t *) xcalloc (npages, PAGE_SIZE);
5208
5209 #endif /* MALLOC_CHECK */
5210 }
5211
5212
5213 /* Release some pages. */
5214
5215 STATIC void
5216 free_multiple_pages (page_ptr, npages)
5217 page_t *page_ptr;
5218 Size_t npages;
5219 {
5220 #ifndef MALLOC_CHECK
5221 if (pages_left == 0)
5222 {
5223 cluster_ptr = page_ptr;
5224 pages_left = npages;
5225 }
5226
5227 else if ((page_ptr + npages) == cluster_ptr)
5228 {
5229 cluster_ptr -= npages;
5230 pages_left += npages;
5231 }
5232
5233 /* otherwise the page is not freed. If more than call is
5234 done, we probably should worry about it, but at present,
5235 the free pages is done right after an allocate. */
5236
5237 #else /* MALLOC_CHECK */
5238 free ((char *) page_ptr);
5239
5240 #endif /* MALLOC_CHECK */
5241 }
5242
5243
5244 /* Allocate one page (which is initialized to 0). */
5245
5246 STATIC page_t *
5247 allocate_page __proto((void))
5248 {
5249 #ifndef MALLOC_CHECK
5250 if (pages_left == 0)
5251 {
5252 pages_left = MAX_CLUSTER_PAGES;
5253 cluster_ptr = allocate_cluster (MAX_CLUSTER_PAGES);
5254 }
5255
5256 pages_left--;
5257 return cluster_ptr++;
5258
5259 #else /* MALLOC_CHECK */
5260 return (page_t *) xcalloc (1, PAGE_SIZE);
5261
5262 #endif /* MALLOC_CHECK */
5263 }
5264
5265 \f
5266 /* Allocate scoping information. */
5267
5268 STATIC scope_t *
5269 allocate_scope __proto((void))
5270 {
5271 register scope_t *ptr;
5272 static scope_t initial_scope;
5273
5274 #ifndef MALLOC_CHECK
5275 ptr = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5276 if (ptr != (scope_t *) 0)
5277 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr->free;
5278
5279 else
5280 {
5281 register int unallocated = alloc_counts[ (int)alloc_type_scope ].unallocated;
5282 register page_t *cur_page = alloc_counts[ (int)alloc_type_scope ].cur_page;
5283
5284 if (unallocated == 0)
5285 {
5286 unallocated = PAGE_SIZE / sizeof (scope_t);
5287 alloc_counts[ (int)alloc_type_scope ].cur_page = cur_page = allocate_page ();
5288 alloc_counts[ (int)alloc_type_scope ].total_pages++;
5289 }
5290
5291 ptr = &cur_page->scope[ --unallocated ];
5292 alloc_counts[ (int)alloc_type_scope ].unallocated = unallocated;
5293 }
5294
5295 #else
5296 ptr = (scope_t *) xmalloc (sizeof (scope_t));
5297
5298 #endif
5299
5300 alloc_counts[ (int)alloc_type_scope ].total_alloc++;
5301 *ptr = initial_scope;
5302 return ptr;
5303 }
5304
5305 /* Free scoping information. */
5306
5307 STATIC void
5308 free_scope (ptr)
5309 scope_t *ptr;
5310 {
5311 alloc_counts[ (int)alloc_type_scope ].total_free++;
5312
5313 #ifndef MALLOC_CHECK
5314 ptr->free = alloc_counts[ (int)alloc_type_scope ].free_list.f_scope;
5315 alloc_counts[ (int)alloc_type_scope ].free_list.f_scope = ptr;
5316
5317 #else
5318 xfree ((PTR_T) ptr);
5319 #endif
5320
5321 }
5322
5323 \f
5324 /* Allocate links for pages in a virtual array. */
5325
5326 STATIC vlinks_t *
5327 allocate_vlinks __proto((void))
5328 {
5329 register vlinks_t *ptr;
5330 static vlinks_t initial_vlinks;
5331
5332 #ifndef MALLOC_CHECK
5333 register int unallocated = alloc_counts[ (int)alloc_type_vlinks ].unallocated;
5334 register page_t *cur_page = alloc_counts[ (int)alloc_type_vlinks ].cur_page;
5335
5336 if (unallocated == 0)
5337 {
5338 unallocated = PAGE_SIZE / sizeof (vlinks_t);
5339 alloc_counts[ (int)alloc_type_vlinks ].cur_page = cur_page = allocate_page ();
5340 alloc_counts[ (int)alloc_type_vlinks ].total_pages++;
5341 }
5342
5343 ptr = &cur_page->vlinks[ --unallocated ];
5344 alloc_counts[ (int)alloc_type_vlinks ].unallocated = unallocated;
5345
5346 #else
5347 ptr = (vlinks_t *) xmalloc (sizeof (vlinks_t));
5348
5349 #endif
5350
5351 alloc_counts[ (int)alloc_type_vlinks ].total_alloc++;
5352 *ptr = initial_vlinks;
5353 return ptr;
5354 }
5355
5356 \f
5357 /* Allocate string hash buckets. */
5358
5359 STATIC shash_t *
5360 allocate_shash __proto((void))
5361 {
5362 register shash_t *ptr;
5363 static shash_t initial_shash;
5364
5365 #ifndef MALLOC_CHECK
5366 register int unallocated = alloc_counts[ (int)alloc_type_shash ].unallocated;
5367 register page_t *cur_page = alloc_counts[ (int)alloc_type_shash ].cur_page;
5368
5369 if (unallocated == 0)
5370 {
5371 unallocated = PAGE_SIZE / sizeof (shash_t);
5372 alloc_counts[ (int)alloc_type_shash ].cur_page = cur_page = allocate_page ();
5373 alloc_counts[ (int)alloc_type_shash ].total_pages++;
5374 }
5375
5376 ptr = &cur_page->shash[ --unallocated ];
5377 alloc_counts[ (int)alloc_type_shash ].unallocated = unallocated;
5378
5379 #else
5380 ptr = (shash_t *) xmalloc (sizeof (shash_t));
5381
5382 #endif
5383
5384 alloc_counts[ (int)alloc_type_shash ].total_alloc++;
5385 *ptr = initial_shash;
5386 return ptr;
5387 }
5388
5389 \f
5390 /* Allocate type hash buckets. */
5391
5392 STATIC thash_t *
5393 allocate_thash __proto((void))
5394 {
5395 register thash_t *ptr;
5396 static thash_t initial_thash;
5397
5398 #ifndef MALLOC_CHECK
5399 register int unallocated = alloc_counts[ (int)alloc_type_thash ].unallocated;
5400 register page_t *cur_page = alloc_counts[ (int)alloc_type_thash ].cur_page;
5401
5402 if (unallocated == 0)
5403 {
5404 unallocated = PAGE_SIZE / sizeof (thash_t);
5405 alloc_counts[ (int)alloc_type_thash ].cur_page = cur_page = allocate_page ();
5406 alloc_counts[ (int)alloc_type_thash ].total_pages++;
5407 }
5408
5409 ptr = &cur_page->thash[ --unallocated ];
5410 alloc_counts[ (int)alloc_type_thash ].unallocated = unallocated;
5411
5412 #else
5413 ptr = (thash_t *) xmalloc (sizeof (thash_t));
5414
5415 #endif
5416
5417 alloc_counts[ (int)alloc_type_thash ].total_alloc++;
5418 *ptr = initial_thash;
5419 return ptr;
5420 }
5421
5422 \f
5423 /* Allocate structure, union, or enum tag information. */
5424
5425 STATIC tag_t *
5426 allocate_tag __proto((void))
5427 {
5428 register tag_t *ptr;
5429 static tag_t initial_tag;
5430
5431 #ifndef MALLOC_CHECK
5432 ptr = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5433 if (ptr != (tag_t *) 0)
5434 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr->free;
5435
5436 else
5437 {
5438 register int unallocated = alloc_counts[ (int)alloc_type_tag ].unallocated;
5439 register page_t *cur_page = alloc_counts[ (int)alloc_type_tag ].cur_page;
5440
5441 if (unallocated == 0)
5442 {
5443 unallocated = PAGE_SIZE / sizeof (tag_t);
5444 alloc_counts[ (int)alloc_type_tag ].cur_page = cur_page = allocate_page ();
5445 alloc_counts[ (int)alloc_type_tag ].total_pages++;
5446 }
5447
5448 ptr = &cur_page->tag[ --unallocated ];
5449 alloc_counts[ (int)alloc_type_tag ].unallocated = unallocated;
5450 }
5451
5452 #else
5453 ptr = (tag_t *) xmalloc (sizeof (tag_t));
5454
5455 #endif
5456
5457 alloc_counts[ (int)alloc_type_tag ].total_alloc++;
5458 *ptr = initial_tag;
5459 return ptr;
5460 }
5461
5462 /* Free scoping information. */
5463
5464 STATIC void
5465 free_tag (ptr)
5466 tag_t *ptr;
5467 {
5468 alloc_counts[ (int)alloc_type_tag ].total_free++;
5469
5470 #ifndef MALLOC_CHECK
5471 ptr->free = alloc_counts[ (int)alloc_type_tag ].free_list.f_tag;
5472 alloc_counts[ (int)alloc_type_tag ].free_list.f_tag = ptr;
5473
5474 #else
5475 xfree ((PTR_T) ptr);
5476 #endif
5477
5478 }
5479
5480 \f
5481 /* Allocate forward reference to a yet unknown tag. */
5482
5483 STATIC forward_t *
5484 allocate_forward __proto((void))
5485 {
5486 register forward_t *ptr;
5487 static forward_t initial_forward;
5488
5489 #ifndef MALLOC_CHECK
5490 ptr = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5491 if (ptr != (forward_t *) 0)
5492 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr->free;
5493
5494 else
5495 {
5496 register int unallocated = alloc_counts[ (int)alloc_type_forward ].unallocated;
5497 register page_t *cur_page = alloc_counts[ (int)alloc_type_forward ].cur_page;
5498
5499 if (unallocated == 0)
5500 {
5501 unallocated = PAGE_SIZE / sizeof (forward_t);
5502 alloc_counts[ (int)alloc_type_forward ].cur_page = cur_page = allocate_page ();
5503 alloc_counts[ (int)alloc_type_forward ].total_pages++;
5504 }
5505
5506 ptr = &cur_page->forward[ --unallocated ];
5507 alloc_counts[ (int)alloc_type_forward ].unallocated = unallocated;
5508 }
5509
5510 #else
5511 ptr = (forward_t *) xmalloc (sizeof (forward_t));
5512
5513 #endif
5514
5515 alloc_counts[ (int)alloc_type_forward ].total_alloc++;
5516 *ptr = initial_forward;
5517 return ptr;
5518 }
5519
5520 /* Free scoping information. */
5521
5522 STATIC void
5523 free_forward (ptr)
5524 forward_t *ptr;
5525 {
5526 alloc_counts[ (int)alloc_type_forward ].total_free++;
5527
5528 #ifndef MALLOC_CHECK
5529 ptr->free = alloc_counts[ (int)alloc_type_forward ].free_list.f_forward;
5530 alloc_counts[ (int)alloc_type_forward ].free_list.f_forward = ptr;
5531
5532 #else
5533 xfree ((PTR_T) ptr);
5534 #endif
5535
5536 }
5537
5538 \f
5539 /* Allocate head of type hash list. */
5540
5541 STATIC thead_t *
5542 allocate_thead __proto((void))
5543 {
5544 register thead_t *ptr;
5545 static thead_t initial_thead;
5546
5547 #ifndef MALLOC_CHECK
5548 ptr = alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5549 if (ptr != (thead_t *) 0)
5550 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr->free;
5551
5552 else
5553 {
5554 register int unallocated = alloc_counts[ (int)alloc_type_thead ].unallocated;
5555 register page_t *cur_page = alloc_counts[ (int)alloc_type_thead ].cur_page;
5556
5557 if (unallocated == 0)
5558 {
5559 unallocated = PAGE_SIZE / sizeof (thead_t);
5560 alloc_counts[ (int)alloc_type_thead ].cur_page = cur_page = allocate_page ();
5561 alloc_counts[ (int)alloc_type_thead ].total_pages++;
5562 }
5563
5564 ptr = &cur_page->thead[ --unallocated ];
5565 alloc_counts[ (int)alloc_type_thead ].unallocated = unallocated;
5566 }
5567
5568 #else
5569 ptr = (thead_t *) xmalloc (sizeof (thead_t));
5570
5571 #endif
5572
5573 alloc_counts[ (int)alloc_type_thead ].total_alloc++;
5574 *ptr = initial_thead;
5575 return ptr;
5576 }
5577
5578 /* Free scoping information. */
5579
5580 STATIC void
5581 free_thead (ptr)
5582 thead_t *ptr;
5583 {
5584 alloc_counts[ (int)alloc_type_thead ].total_free++;
5585
5586 #ifndef MALLOC_CHECK
5587 ptr->free = (thead_t *) alloc_counts[ (int)alloc_type_thead ].free_list.f_thead;
5588 alloc_counts[ (int)alloc_type_thead ].free_list.f_thead = ptr;
5589
5590 #else
5591 xfree ((PTR_T) ptr);
5592 #endif
5593
5594 }
5595
5596 #endif /* MIPS_DEBUGGING_INFO */
5597
5598 \f
5599 #ifdef HAVE_VPRINTF
5600
5601 /* Output an error message and exit */
5602
5603 /*VARARGS*/
5604 void
5605 fatal VPROTO((const char *format, ...))
5606 {
5607 #ifndef ANSI_PROTOTYPES
5608 char *format;
5609 #endif
5610 va_list ap;
5611
5612 VA_START (ap, format);
5613
5614 #ifndef ANSI_PROTOTYPES
5615 format = va_arg (ap, char *);
5616 #endif
5617
5618 if (line_number > 0)
5619 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5620 else
5621 fprintf (stderr, "%s:", progname);
5622
5623 vfprintf (stderr, format, ap);
5624 va_end (ap);
5625 fprintf (stderr, "\n");
5626 if (line_number > 0)
5627 fprintf (stderr, "line:\t%s\n", cur_line_start);
5628
5629 saber_stop ();
5630 exit (1);
5631 }
5632
5633 /*VARARGS*/
5634 void
5635 error VPROTO((const char *format, ...))
5636 {
5637 #ifndef ANSI_PROTOTYPES
5638 char *format;
5639 #endif
5640 va_list ap;
5641
5642 VA_START (ap, format);
5643
5644 #ifndef ANSI_PROTOTYPES
5645 format = va_arg (ap, char *);
5646 #endif
5647
5648 if (line_number > 0)
5649 fprintf (stderr, "%s, %s:%ld ", progname, input_name, line_number);
5650 else
5651 fprintf (stderr, "%s:", progname);
5652
5653 vfprintf (stderr, format, ap);
5654 fprintf (stderr, "\n");
5655 if (line_number > 0)
5656 fprintf (stderr, "line:\t%s\n", cur_line_start);
5657
5658 had_errors++;
5659 va_end (ap);
5660
5661 saber_stop ();
5662 }
5663
5664 #else /* not HAVE_VPRINTF */
5665
5666 void
5667 fatal (msg, arg1, arg2)
5668 char *msg, *arg1, *arg2;
5669 {
5670 error (msg, arg1, arg2);
5671 exit (1);
5672 }
5673
5674 void
5675 error (msg, arg1, arg2)
5676 char *msg, *arg1, *arg2;
5677 {
5678 fprintf (stderr, "%s: ", progname);
5679 fprintf (stderr, msg, arg1, arg2);
5680 fprintf (stderr, "\n");
5681 }
5682
5683 #endif /* not HAVE_VPRINTF */
5684
5685 /* More 'friendly' abort that prints the line and file.
5686 config.h can #define abort fancy_abort if you like that sort of thing. */
5687
5688 void
5689 fancy_abort ()
5690 {
5691 fatal ("Internal abort.");
5692 }
5693 \f
5694
5695 /* When `malloc.c' is compiled with `rcheck' defined,
5696 it calls this function to report clobberage. */
5697
5698 void
5699 botch (s)
5700 const char *s;
5701 {
5702 fatal (s);
5703 }
5704
5705 /* Same as `malloc' but report error if no memory available. */
5706
5707 PTR_T
5708 xmalloc (size)
5709 Size_t size;
5710 {
5711 register PTR_T value = malloc (size);
5712 if (value == 0)
5713 fatal ("Virtual memory exhausted.");
5714
5715 if (debug > 3)
5716 fprintf (stderr, "\tmalloc\tptr = 0x%.8x, size = %10u\n", value, size);
5717
5718 return value;
5719 }
5720
5721 /* Same as `calloc' but report error if no memory available. */
5722
5723 PTR_T
5724 xcalloc (size1, size2)
5725 Size_t size1, size2;
5726 {
5727 register PTR_T value = calloc (size1, size2);
5728 if (value == 0)
5729 fatal ("Virtual memory exhausted.");
5730
5731 if (debug > 3)
5732 fprintf (stderr, "\tcalloc\tptr = 0x%.8x, size1 = %10u, size2 = %10u [%u]\n",
5733 value, size1, size2, size1+size2);
5734
5735 return value;
5736 }
5737
5738 /* Same as `realloc' but report error if no memory available. */
5739
5740 PTR_T
5741 xrealloc (ptr, size)
5742 PTR_T ptr;
5743 Size_t size;
5744 {
5745 register PTR_T result = realloc (ptr, size);
5746 if (!result)
5747 fatal ("Virtual memory exhausted.");
5748
5749 if (debug > 3)
5750 fprintf (stderr, "\trealloc\tptr = 0x%.8x, size = %10u, orig = 0x%.8x\n",
5751 result, size, ptr);
5752
5753 return result;
5754 }
5755
5756 void
5757 xfree (ptr)
5758 PTR_T ptr;
5759 {
5760 if (debug > 3)
5761 fprintf (stderr, "\tfree\tptr = 0x%.8x\n", ptr);
5762
5763 free (ptr);
5764 }
5765
5766 \f
5767 /* Define our own index/rindex, since the local and global symbol
5768 structures as defined by MIPS has an 'index' field. */
5769
5770 STATIC char *
5771 local_index (str, sentinel)
5772 const char *str;
5773 int sentinel;
5774 {
5775 int ch;
5776
5777 for ( ; (ch = *str) != sentinel; str++)
5778 {
5779 if (ch == '\0')
5780 return (char *) 0;
5781 }
5782
5783 return (char *)str;
5784 }
5785
5786 STATIC char *
5787 local_rindex (str, sentinel)
5788 const char *str;
5789 int sentinel;
5790 {
5791 int ch;
5792 const char *ret = (const char *) 0;
5793
5794 for ( ; (ch = *str) != '\0'; str++)
5795 {
5796 if (ch == sentinel)
5797 ret = str;
5798 }
5799
5800 return (char *)ret;
5801 }
Mirror of the offical gcc git repository hosted at gcc.gnu.org